技术领域technical field
本发明涉及短距离无线通信应用技术领域，尤其涉及一种智能报警的方法和系统。The invention relates to the technical field of short-distance wireless communication applications, in particular to an intelligent alarm method and system.
背景技术Background technique
短距离无线通信技术已深入到人们生活和工作的各个方面，包括日常使用的手机、无线电话等，其中，蓝牙由于其低功耗、高效数据传输、连接稳定性高等特性，应用十分广泛。Short-range wireless communication technology has penetrated into all aspects of people's life and work, including mobile phones and wireless phones used in daily life. Among them, Bluetooth is widely used due to its low power consumption, high-efficiency data transmission, and high connection stability.
当前很多智能手表或者手环，都配合手机使用，通过蓝牙等无线网络实现防丢功能，原理是利用蓝牙的低功耗和连接距离属性，在通过蓝牙建立短距离无线通信连接的两终端之间相距超过一定的距离时，会自动报警提醒连接双方，防止距离过远，起到防丢提醒效果。At present, many smart watches or wristbands are used in conjunction with mobile phones, and realize the anti-lost function through wireless networks such as Bluetooth. When the distance exceeds a certain distance, it will automatically alarm to remind the two connected parties to prevent the distance from being too far and play an anti-lost reminder effect.
防丢提醒功能所使用的无线网络一般是蓝牙或者WIFI，但因为不同手机不同款式各个无线设备发射功率及结构存在差异，防丢提醒功能软件无法同时适应多款不同的手机，对一些距离比较敏感的使用场景，由于各个无线设备发射功率及结构存在差异会导致较大的检测误差，存在很大的风险和不便，无法起到良好的防丢提醒的效果。The wireless network used by the anti-lost reminder function is generally Bluetooth or WIFI, but because of the differences in the transmission power and structure of various wireless devices of different mobile phones and different models, the anti-lost reminder function software cannot adapt to many different mobile phones at the same time, and is sensitive to some distances Due to the difference in the transmission power and structure of each wireless device, it will cause a large detection error, which will cause great risk and inconvenience, and cannot achieve a good effect of anti-lost reminder.
发明内容Contents of the invention
本发明实施例提供一种智能报警的方法和系统，来解决以上技术问题。Embodiments of the present invention provide an intelligent alarm method and system to solve the above technical problems.
为达此目的，本发明采用以下技术方案：For reaching this purpose, the present invention adopts following technical scheme:
第一方面，本发明实施例提供一种智能报警的方法，包括：In the first aspect, the embodiment of the present invention provides a method for intelligent alarm, including:
校准模式下，获得建立短距离无线通信连接的第一终端与第二终端之间的距离；In the calibration mode, obtain the distance between the first terminal and the second terminal establishing the short-distance wireless communication connection;
建立所述距离与所述短距离无线通信连接的无线信号强度的对应关系；establishing a correspondence between the distance and the wireless signal strength of the short-distance wireless communication connection;
根据所述对应关系，获得预设的报警距离对应的无线信号强度报警阈值；According to the corresponding relationship, a wireless signal strength alarm threshold corresponding to a preset alarm distance is obtained;
退出校准模式后，若获取的无线信号强度小于所述无线信号强度报警阈值，发出第一报警。After exiting the calibration mode, if the acquired wireless signal strength is less than the wireless signal strength alarm threshold, a first alarm is issued.
优选的，所述步骤：根据所述对应关系，获得预设的报警距离对应的无线信号强度报警阈值之后，还包括：Preferably, the step: after obtaining the wireless signal strength alarm threshold corresponding to the preset alarm distance according to the corresponding relationship, further includes:
退出校准模式后，实时获取所述短距离无线通信连接的无线信号强度；After exiting the calibration mode, obtain the wireless signal strength of the short-distance wireless communication connection in real time;
判断获取的无线信号强度是否小于所述无线信号强度报警阈值；judging whether the acquired wireless signal strength is less than the wireless signal strength alarm threshold;
若是，发出第一报警；If so, issue the first alarm;
否则，不发出第一报警，继续实时获取所述短距离无线通信连接的无线信号强度。Otherwise, the first alarm is not issued, and the wireless signal strength of the short-distance wireless communication connection is continuously obtained in real time.
优选的，所述步骤：校准模式下，获得建立短距离无线通信连接的第一终端与第二终端之间的距离之前，还包括：Preferably, the step: in the calibration mode, before obtaining the distance between the first terminal and the second terminal establishing the short-distance wireless communication connection, further includes:
第一终端和第二终端建立短距离无线通信连接；establishing a short-distance wireless communication connection between the first terminal and the second terminal;
获取第二终端的唯一标识信息；Obtain unique identification information of the second terminal;
判断本地的存储器中是否存储有与所述唯一标识信息对应的所述对应关系；judging whether the corresponding relationship corresponding to the unique identification information is stored in a local memory;
若是，从所述存储器中获取所述对应关系；If so, obtain the corresponding relationship from the memory;
否则，控制第一终端进入校准模式。Otherwise, control the first terminal to enter the calibration mode.
优选的，所述步骤：控制第一终端进入校准模式之后，还包括：Preferably, the step: after controlling the first terminal to enter the calibration mode, further includes:
启动声波检测功能，获取当前时间，将当前时间作为声波发送时间，编码成检测声波，通过声波方式发送出去；Start the sound wave detection function, obtain the current time, use the current time as the sound wave sending time, encode it into a detection sound wave, and send it out through sound waves;
通过短距离无线通信从第二终端获取所述检测声波的声波传输时间；所述检测声波的声波传输时间为第二终端根据接收到所述检测声波的时间以及所述声波发送时间计算获得；Obtaining the sound wave transmission time of the detection sound wave from the second terminal through short-distance wireless communication; the sound wave transmission time of the detection sound wave is calculated and obtained by the second terminal according to the time when the detection sound wave is received and the sound wave transmission time;
根据所述检测声波的声波传输时间和声波的传输速度计算获得建立短距离无线通信连接的第一终端与第二终端之间的距离；calculating and obtaining the distance between the first terminal and the second terminal establishing the short-distance wireless communication connection according to the sound wave transmission time of the detected sound wave and the sound wave transmission speed;
关闭声波检测功能。Turn off the sound wave detection function.
优选的，所述步骤：通过短距离无线通信从第二终端获取所述检测声波的声波传输时间之后，还包括：获取接收到所述声波传输时间时所述短距离无线通信连接的无线信号强度；Preferably, the step: after obtaining the sound wave transmission time of the detection sound wave from the second terminal through short-distance wireless communication, further includes: obtaining the wireless signal strength of the short-distance wireless communication connection when the sound wave transmission time is received ;
所述步骤：建立所述距离与所述短距离无线通信连接的无线信号强度的对应关系；具体包括：The step: establishing a corresponding relationship between the distance and the wireless signal strength of the short-distance wireless communication connection; specifically including:
根据所述距离与接收到所述声波传输时间时所述短距离无线通信连接的无线信号强度生成一关联数据文件，存储于所述存储器中；Generate an associated data file according to the distance and the wireless signal strength of the short-distance wireless communication connection when receiving the sound wave transmission time, and store it in the memory;
判断所述存储器中的关联数据文件的数量是否小于预设的数量阈值；judging whether the number of associated data files in the memory is less than a preset number threshold;
若是，发出第二报警，提示用户移动第一终端和/或第二终端的位置；If so, send out a second alarm to prompt the user to move the location of the first terminal and/or the second terminal;
否则，根据存储的关联数据文件建立所述距离与所述短距离无线通信连接的无线信号强度的对应关系，将所述对应关系存储于所述存储器中，并控制第一终端退出校准模式。Otherwise, establish the corresponding relationship between the distance and the wireless signal strength of the short-distance wireless communication connection according to the stored associated data file, store the corresponding relationship in the memory, and control the first terminal to exit the calibration mode.
优选的，所述步骤：发出第二报警，提示用户移动第一终端和/或第二终端的位置之后，还包括：实时检测是否收到控制第一终端启动声波检测功能的开关控制信号；Preferably, the step: sending out a second alarm to prompt the user to move the position of the first terminal and/or the second terminal, further includes: detecting in real time whether a switch control signal for controlling the first terminal to start the sound wave detection function is received;
若是，返回至所述步骤：启动声波检测功能，获取当前时间，将当前时间作为声波发送时间，编码成检测声波，通过声波方式发送出去；If so, return to the step: start the sound wave detection function, obtain the current time, use the current time as the sound wave sending time, encode it into a detection sound wave, and send it out through the sound wave;
否则，继续检测是否收到控制第一终端启动声波检测功能的开关控制信号。Otherwise, continue to detect whether a switch control signal for controlling the first terminal to start the sound wave detection function is received.
优选的，所述检测声波的声波传输时间为第二终端根据接收到所述检测声波的时间以及所述声波发送时间计算获得，具体为：Preferably, the sound wave transmission time of the detection sound wave is calculated and obtained by the second terminal according to the time when the detection sound wave is received and the sound wave transmission time, specifically:
第二终端实时检测是否接收到第一终端发出的所述检测声波；The second terminal detects in real time whether the detection sound wave sent by the first terminal is received;
若否，第二终端继续实时检测是否接收到第一终端发出的所述检测声波；If not, the second terminal continues to detect in real time whether the detection sound wave sent by the first terminal is received;
若是，第二终端获取接收到所述检测声波的时间；第二终端对所述检测声波进行解码，获得所述检测声波的声波发送时间；第二终端根据接收到所述检测声波的时间与所述声波发送时间得到所述检测声波的声波传输时间；第二终端通过短距离无线通信将所述声波传输时间发送至第一终端。If so, the second terminal obtains the time when the detection sound wave is received; the second terminal decodes the detection sound wave to obtain the sound wave sending time of the detection sound wave; The sound wave transmission time of the detection sound wave is obtained from the sound wave transmission time; the second terminal sends the sound wave transmission time to the first terminal through short-distance wireless communication.
优选的，所述步骤：第一终端与第二终端建立短距离无线通信连接之前，还包括：Preferably, the step: before the first terminal establishes a short-distance wireless communication connection with the second terminal, further includes:
预先设置一数量阈值和一报警距离；Preset a quantity threshold and an alarm distance;
其中，报警距离即第一终端和第二终端之间的报警距离。Wherein, the warning distance is the warning distance between the first terminal and the second terminal.
优选的，所述步骤：根据第二终端的唯一标识信息查询本地的存储器，判断本地的存储器中是否存储有与所述唯一标识信息对应的所述对应关系之前，还包括：Preferably, the step: before querying the local storage according to the unique identification information of the second terminal, and determining whether the corresponding relationship corresponding to the unique identification information is stored in the local storage, further includes:
实时检测是否收到控制第一终端进入校准模式的开关控制信号；Detecting in real time whether a switch control signal for controlling the first terminal to enter the calibration mode is received;
若是，控制第一终端进入校准模式；If so, control the first terminal to enter the calibration mode;
否则，根据第二终端的唯一标识信息查询本地的存储器，判断本地的存储器中是否存储有与所述唯一标识信息对应的所述对应关系。Otherwise, query the local storage according to the unique identification information of the second terminal, and judge whether the corresponding relationship corresponding to the unique identification information is stored in the local storage.
优选的，所述步骤：第一终端与第二终端建立短距离无线通信连接，具体为：Preferably, the step: the first terminal establishes a short-distance wireless communication connection with the second terminal, specifically:
第一终端与第二终端通过蓝牙建立短距离无线通信连接。The first terminal establishes a short-distance wireless communication connection with the second terminal through Bluetooth.
第二方面，本发明实施例提供一种智能报警的系统，包括：第一终端与第二终端；In the second aspect, an embodiment of the present invention provides an intelligent alarm system, including: a first terminal and a second terminal;
第一终端包括：The first terminal includes:
数值处理模块，用于校准模式下，获得建立短距离无线通信连接的第一终端与第二终端之间的距离；还用于建立所述距离与所述短距离无线通信连接的无线信号强度的对应关系；还用于根据所述对应关系，获得预设的报警距离对应的无线信号强度报警阈值；The numerical processing module is used to obtain the distance between the first terminal and the second terminal establishing the short-distance wireless communication connection in the calibration mode; it is also used to establish the distance and the wireless signal strength of the short-distance wireless communication connection Correspondence; it is also used to obtain the wireless signal strength alarm threshold corresponding to the preset alarm distance according to the corresponding relationship;
第一报警模块，用于退出校准模式后，若获取的无线信号强度小于所述无线信号强度报警阈值，发出第一报警。The first alarm module is configured to issue a first alarm if the acquired wireless signal strength is less than the wireless signal strength alarm threshold after exiting the calibration mode.
优选的，第一终端还包括无线信号强度获取模块，用于退出校准模式后，实时获取所述短距离无线通信连接的无线信号强度；Preferably, the first terminal further includes a wireless signal strength acquisition module, configured to acquire the wireless signal strength of the short-distance wireless communication connection in real time after exiting the calibration mode;
所述第一报警模块还用于判断获取的无线信号强度是否小于所述无线信号强度报警阈值；若是，发出第一报警；否则，不发出第一报警，继续实时获取所述短距离无线通信连接的无线信号强度。The first alarm module is also used to judge whether the acquired wireless signal strength is less than the wireless signal strength alarm threshold; if so, issue the first alarm; otherwise, do not issue the first alarm, and continue to obtain the short-distance wireless communication connection in real time wireless signal strength.
优选的，第一终端还包括第一通信连接模块和存储器；Preferably, the first terminal further includes a first communication connection module and a memory;
所述第一通信连接模块用于与第二终端建立短距离无线通信连接；The first communication connection module is used to establish a short-distance wireless communication connection with the second terminal;
所述数值处理模块还用于获取第二终端的唯一标识信息；The value processing module is also used to obtain unique identification information of the second terminal;
所述数值处理模块还用于判断所述存储器中是否存储有与所述唯一标识信息对应的所述对应关系；若是，从所述存储器中获取所述对应关系；否则，控制第一终端进入校准模式。The numerical processing module is also used to judge whether the corresponding relationship corresponding to the unique identification information is stored in the memory; if so, obtain the corresponding relationship from the memory; otherwise, control the first terminal to enter the calibration model.
优选的，第一终端还包括第一时钟模块和第一声波收发模块；Preferably, the first terminal further includes a first clock module and a first acoustic wave transceiver module;
所述一时钟模块用于实时获取当前时间；The one clock module is used to obtain the current time in real time;
所述第一声波收发模块用于启动声波检测功能，获取当前时间，将当前时间作为声波发送时间，编码成检测声波，通过声波方式发送出去；The first sound wave transceiver module is used to start the sound wave detection function, obtain the current time, use the current time as the sound wave transmission time, encode it into a detection sound wave, and send it out through the sound wave mode;
所述数值处理模块还用于通过短距离无线通信从第二终端获取所述检测声波的声波传输时间；所述检测声波的声波传输时间为第二终端根据接收到所述检测声波的时间以及所述声波发送时间计算获得；The numerical processing module is also used to obtain the sound wave transmission time of the detection sound wave from the second terminal through short-distance wireless communication; the sound wave transmission time of the detection sound wave is obtained by the second terminal according to the time when the detection sound wave is received and the Obtained by calculating the sending time of the sound wave;
所述数值处理模块还用于根据所述检测声波的声波传输时间和声波的传输速度计算获得建立短距离无线通信连接的第一终端与第二终端之间的距离；The numerical processing module is also used to calculate and obtain the distance between the first terminal and the second terminal establishing the short-distance wireless communication connection according to the sound wave transmission time of the detected sound wave and the sound wave transmission speed;
所述数值处理模块还用于在获得所述距离之后，向所述第一声波收发模块发送关闭声波检测功能的控制信号；The numerical processing module is further configured to send a control signal to the first sound wave transceiver module to turn off the sound wave detection function after obtaining the distance;
所述第一声波收发模块还用于在收到所述数值处理模块发送的关闭声波检测功能的控制信号后，关闭声波检测功能。The first sound wave transceiver module is further configured to turn off the sound wave detection function after receiving the control signal for turning off the sound wave detection function sent by the numerical value processing module.
优选的，所述无线信号强度获取模块还用于获取接收到所述声波传输时间时所述短距离无线通信连接的无线信号强度；Preferably, the wireless signal strength acquisition module is further configured to acquire the wireless signal strength of the short-distance wireless communication connection when the sound wave transmission time is received;
所述数值处理模块还用于根据所述距离与接收到所述声波传输时间时所述短距离无线通信连接的无线信号强度生成一关联数据文件，存储于所述存储器中；The numerical processing module is also used to generate an associated data file according to the distance and the wireless signal strength of the short-distance wireless communication connection when receiving the sound wave transmission time, and store it in the memory;
所述数值处理模块还用于判断所述存储器中的关联数据文件的数量是否小于预设的数量阈值；若是，向所述第一报警模块发出第二报警控制信号；否则，根据存储的关联数据文件建立所述距离与所述短距离无线通信连接的无线信号强度的对应关系，将所述对应关系存储于所述存储器中，并控制第一终端退出校准模式；The numerical processing module is also used to judge whether the number of associated data files in the memory is less than a preset number threshold; if so, send a second alarm control signal to the first alarm module; otherwise, according to the stored associated data The file establishes a corresponding relationship between the distance and the wireless signal strength of the short-distance wireless communication connection, stores the corresponding relationship in the memory, and controls the first terminal to exit the calibration mode;
所述第一报警模块还用于在收到所述第二报警控制信号时，发出第二报警，提示用户移动第一终端和/或第二终端的位置。The first alarm module is further configured to issue a second alarm when receiving the second alarm control signal, prompting the user to move the location of the first terminal and/or the second terminal.
优选的，第一终端还包括控制开关；所述控制开关包括启动声波检测功能的功能按钮，用于所述第一报警模块发出第二报警后，若检测到启动声波检测功能的功能按钮被点击或触控生效，向所述第一声波收发模块发送控制第一终端启动声波检测功能的开关控制信号；Preferably, the first terminal further includes a control switch; the control switch includes a function button for starting the sound wave detection function, which is used to detect that the function button for starting the sound wave detection function is clicked after the first alarm module sends out a second alarm. or the touch takes effect, sending a switch control signal to the first sound wave transceiver module to control the first terminal to start the sound wave detection function;
所述第一声波收发模块还用于实时检测是否收到控制第一终端启动声波检测功能的开关控制信号，若是，启动声波检测功能，获取当前时间，将当前时间作为声波发送时间，编码成检测声波，通过声波方式发送出去；否则，继续检测是否收到控制第一终端启动声波检测功能的开关控制信号。The first sound wave transceiver module is also used to detect in real time whether a switch control signal for controlling the first terminal to start the sound wave detection function is received, if so, start the sound wave detection function, obtain the current time, use the current time as the sound wave transmission time, and encode it into Detect the sound wave, and send it out through the sound wave; otherwise, continue to detect whether a switch control signal for controlling the first terminal to start the sound wave detection function is received.
优选的，第二终端包括第二通信连接模块、第二时钟模块、声波传输时间获取模块、第二声波收发模块：Preferably, the second terminal includes a second communication connection module, a second clock module, a sound wave transmission time acquisition module, and a second sound wave transceiver module:
所述第二通信连接模块用于与第一终端建立短距离无线通信连接；The second communication connection module is used to establish a short-distance wireless communication connection with the first terminal;
所述第二时钟模块用于实时获取当前的时间；The second clock module is used to obtain the current time in real time;
所述第二声波收发模块用于实时检测是否接收到第一终端发出的所述检测声波；若否，继续检测是否接收到第一终端发出的所述检测声波；若是，通知所述声波传输时间获取模块从所述第二时钟模块获取当前时间，即第二终端接收到所述检测声波的时间；The second sound wave transceiver module is used to detect in real time whether the detection sound wave sent by the first terminal is received; if not, continue to detect whether the detection sound wave sent by the first terminal is received; if so, notify the sound wave transmission time The obtaining module obtains the current time from the second clock module, that is, the time when the second terminal receives the detection sound wave;
所述第二声波收发模块还用于对所述检测声波进行解码，获得所述检测声波的声波发送时间；The second sound wave transceiver module is also used to decode the detection sound wave to obtain the sound wave sending time of the detection sound wave;
所述声波传输时间获取模块用于从所述第二时钟模块获取接收到所述检测声波的时间以及从所述第二声波收发模块获取所述检测声波的声波发送时间；还用于根据接收到所述检测声波的时间与所述声波发送时间得到所述检测声波的声波传输时间；还用于通过短距离无线通信将所述声波传输时间发送至第一终端。The sound wave transmission time acquisition module is used to obtain the time of receiving the detection sound wave from the second clock module and obtain the sound wave transmission time of the detection sound wave from the second sound wave transceiver module; The sound wave transmission time of the detection sound wave is obtained by the detection time of the sound wave and the sound wave transmission time; and is also used to send the sound wave transmission time to the first terminal through short-distance wireless communication.
优选的，第一终端还包括阈值设置模块，用于预先设置一数量阈值和一报警距离；Preferably, the first terminal further includes a threshold setting module, which is used to preset a quantity threshold and an alarm distance;
其中，所述报警距离即第一终端和第二终端之间的报警距离。Wherein, the warning distance is the warning distance between the first terminal and the second terminal.
优选的，所述控制开关还包括启动校准模式的功能按钮，用于若检测到启动校准模式的功能按钮被点击或触控生效，向所述数值处理模块发送控制第一终端进入校准模式的开关控制信号；Preferably, the control switch further includes a function button for starting the calibration mode, which is used to send a switch to the numerical processing module to control the first terminal to enter the calibration mode if it is detected that the function button for starting the calibration mode is clicked or touched. control signal;
所述数值处理模块还用于实时检测是否收到控制第一终端进入校准模式的开关控制信号；若是，控制第一终端进入校准模式；否则，根据第二终端的唯一标识信息查询本地的存储器，判断本地的存储器中是否存储有与所述唯一标识信息对应的所述对应关系。The numerical processing module is also used to detect in real time whether a switch control signal for controlling the first terminal to enter the calibration mode is received; if so, control the first terminal to enter the calibration mode; otherwise, query the local memory according to the unique identification information of the second terminal, Judging whether the corresponding relationship corresponding to the unique identification information is stored in a local memory.
优选的，所述第一通信连接模块和所述第二通信连接模块为蓝牙功能模块；第一终端与第二终端通过蓝牙建立短距离无线通信连接。Preferably, the first communication connection module and the second communication connection module are Bluetooth functional modules; the first terminal and the second terminal establish a short-distance wireless communication connection through Bluetooth.
本发明实施例提供的技术方案带来的有益效果：第一终端和第二终端首次建立短距离无线通信连接时，进入校准模式，建立无线信号强度和两终端之间的距离的对应关系，在获得对应关系后，即退出校准模式，然后可根据该对应关系和与预先设置的两终端之间的报警距离得到一无线信号强度报警阈值，在获取的无线信号强度小于无线信号强度报警阈值时，发出报警，实现防丢提醒功能，本发明通过监测退出校准模式后实时获取的无线信号强度即可实现实时监测两终端之间的距离是否过远，如此可避免由于每个设备的无线功率的个体差异造成的距离检测误差，并且该对应关系在建立后可存储起来，在第二次建立短距离无线通信连接时直接调用获得，十分方便和实用。Beneficial effects brought by the technical solution provided by the embodiment of the present invention: when the first terminal and the second terminal establish a short-distance wireless communication connection for the first time, they enter the calibration mode and establish a corresponding relationship between the wireless signal strength and the distance between the two terminals. After obtaining the corresponding relationship, exit the calibration mode, and then obtain a wireless signal strength alarm threshold according to the corresponding relationship and the preset alarm distance between the two terminals. When the obtained wireless signal strength is less than the wireless signal strength alarm threshold, Send an alarm and realize the anti-lost reminder function. The present invention can realize real-time monitoring of whether the distance between the two terminals is too far by monitoring the wireless signal strength obtained in real time after exiting the calibration mode, so as to avoid the individual wireless power of each device. The distance detection error caused by the difference, and the corresponding relationship can be stored after being established, and can be directly invoked and obtained when the short-distance wireless communication connection is established for the second time, which is very convenient and practical.
附图说明Description of drawings
为了更清楚地说明本发明实施例中的技术方案，下面将对本发明实施例描述中所需要使用的附图作简单的介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据本发明实施例的内容和这些附图获取其他的附图。In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments of the present invention. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention For those skilled in the art, other drawings can also be obtained according to the content of the embodiment of the present invention and these drawings without any creative effort.
图1是本发明实施例提供的智能报警的系统的结构方框图。Fig. 1 is a structural block diagram of an intelligent alarm system provided by an embodiment of the present invention.
图2是本发明实施例提供的智能报警的方法流程图。Fig. 2 is a flowchart of a method for intelligent alarm provided by an embodiment of the present invention.
图3是本发明实施例提供的建立对应关系的方法流程图。Fig. 3 is a flowchart of a method for establishing a correspondence provided by an embodiment of the present invention.
图4是本发明实施例提供的第二终端获取声波传输时间的方法流程图。Fig. 4 is a flow chart of a method for acquiring sound wave transmission time by a second terminal according to an embodiment of the present invention.
图中：10、第一终端；20、第二终端；11、第一通信连接模块；12、无线信号强度获取模块；13、第二报警模块；14、存储器；15、数值处理模块；16、阈值设置模块；17、第一时钟模块；18、第一声波收发模块；19、控制开关；21、第二通信连接模块；22、第一报警模块；23、第二声波收发模块；24、声波传输时间获取模块；25、第二时钟模块。In the figure: 10, the first terminal; 20, the second terminal; 11, the first communication connection module; 12, the wireless signal strength acquisition module; 13, the second alarm module; 14, the memory; 15, the numerical processing module; 16, Threshold value setting module; 17. The first clock module; 18. The first sound wave transceiver module; 19. Control switch; 21. The second communication connection module; 22. The first alarm module; 23. The second sound wave transceiver module; 24. Acquisition module for sound wave transmission time; 25. The second clock module.
具体实施方式detailed description
为使本发明解决的技术问题、采用的技术方案和达到的技术效果更加清楚，下面将结合附图对本发明实施例的技术方案作进一步的详细描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域技术人员在没有做出创造性劳动前提下所获取的所有其他实施例，都属于本发明保护的范围。In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only the technical solutions of the present invention. Some, but not all, embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.
请参考图1，图1是本发明实施例提供的智能报警的系统的结构方框图。该系统包括：第一终端10和第二终端20。Please refer to FIG. 1 . FIG. 1 is a structural block diagram of an intelligent alarm system provided by an embodiment of the present invention. The system includes: a first terminal 10 and a second terminal 20 .
第一终端10包括：第一通信连接模块11、无线信号强度获取模块12、第二报警模块13、存储器14、数值处理模块15、阈值设置模块16、第一时钟模块17、第一声波收发模块18和控制开关19。The first terminal 10 includes: a first communication connection module 11, a wireless signal strength acquisition module 12, a second alarm module 13, a memory 14, a numerical processing module 15, a threshold setting module 16, a first clock module 17, a first sound wave transceiver module 18 and control switch 19.
第二终端20包括：第二通信连接模块21、第二报警模块22、第二声波收发模块23、声波传输时间获取模块24和第二时钟模块25。The second terminal 20 includes: a second communication connection module 21 , a second alarm module 22 , a second sound wave transceiver module 23 , a sound wave transmission time acquisition module 24 and a second clock module 25 .
具体的，第一通信连接模块11和第二通信连接模块21均为蓝牙模块，用于使第一终端10和第二终端20建立短距离无线通信连接，实现数据和信息交互。其中，第一终端10为主终端，第二终端20为从终端。Specifically, both the first communication connection module 11 and the second communication connection module 21 are Bluetooth modules, which are used to enable the first terminal 10 and the second terminal 20 to establish a short-distance wireless communication connection to realize data and information interaction. Wherein, the first terminal 10 is the master terminal, and the second terminal 20 is the slave terminal.
第二终端20与第一终端10建立短距离无线通信连接时，首先向第一终端10发送一请求信息，请求信息包括PIN(Personal Identification Number，个人识别密码)码，第一通信连接模块11收到该请求信息，判断请求信息中的PIN码是否与预先设置的PIN码相匹配，若是，返回允许建立连接的通信信号，获取第二终端20的用户名和物理地址，与第二终端20建立短距离无线通信连接；否则，返回连接失败的通信信号。When the second terminal 20 establishes a short-distance wireless communication connection with the first terminal 10, it first sends a request message to the first terminal 10, the request message includes a PIN (Personal Identification Number, personal identification code) code, and the first communication connection module 11 receives After receiving the request information, judge whether the PIN code in the request information matches the preset PIN code, if so, return a communication signal allowing the establishment of a connection, obtain the user name and physical address of the second terminal 20, and establish a short message with the second terminal 20. Distance to wireless communication connection; otherwise, return communication signal of connection failure.
具体的，数值处理模块15用于获取第二终端20的唯一标识信息。第一终端10和第二终端20建立短距离无线通信连接后，数值处理模块15从第一通信连接模块11获取到第二终端20的相关的数据信息，包括第二终端20无线通信连接所使用的用户名、用于通信的物理地址、PIN码等，可选择其中一项数据或两项数据结合作为终端唯一标识信息，本实施例采用第二终端20用于通信的物理地址作为第二终端20的唯一标识信息，一般情况下，物理地址和终端是一一对应的。不存在不同终端使用同一个物理地址的情况。Specifically, the numerical value processing module 15 is configured to obtain unique identification information of the second terminal 20 . After the first terminal 10 and the second terminal 20 establish a short-distance wireless communication connection, the numerical processing module 15 obtains the relevant data information of the second terminal 20 from the first communication connection module 11, including the information used by the second terminal 20 for wireless communication connection. User name, physical address for communication, PIN code, etc., one of the data or a combination of two data can be selected as the unique identification information of the terminal. This embodiment uses the physical address of the second terminal 20 for communication as the second terminal 20 unique identification information, in general, there is a one-to-one correspondence between the physical address and the terminal. There is no situation where different terminals use the same physical address.
若两终端为第一次建立短距离无线通信连接，数值处理模块15还用于将获取的第二终端20的相关的数据信息存储于本地的存储器14中。If the two terminals are establishing a short-distance wireless communication connection for the first time, the value processing module 15 is further configured to store the obtained related data information of the second terminal 20 in the local memory 14 .
具体的，数值处理模块15用于校准模式下，获得建立短距离无线通信连接的第一终端10与第二终端20之间的距离；还用于建立该距离与该距离下短距离无线通信连接的无线信号强度的对应关系；还用于根据该对应关系，获得预设的报警距离对应的无线信号强度报警阈值。第一报警模块13用于退出校准模式后，若获取的无线信号强度小于该无线信号强度报警阈值，发出第一报警。Specifically, the numerical processing module 15 is used to obtain the distance between the first terminal 10 and the second terminal 20 establishing the short-distance wireless communication connection in the calibration mode; it is also used to establish the distance and the distance between the short-distance wireless communication connection The corresponding relationship of the wireless signal strength; it is also used to obtain the wireless signal strength alarm threshold corresponding to the preset alarm distance according to the corresponding relationship. The first alarm module 13 is configured to issue a first alarm if the acquired wireless signal strength is less than the wireless signal strength alarm threshold after exiting the calibration mode.
第一终端10和第二终端20首次建立短距离无线通信连接，第一终端10进入校准模式，校准模式下，建立两终端之间的距离与无线信号强度的对应关系后，将该对应关系和第二终端20的唯一标识信息一一对应的存储于存储器14中，以便于下次建立短距离无线通信连接时调用。建立对应关系后，根据该对应关系和两终端之间的报警距离得到一无线信号强度报警阈值，通过监测无线信号强度即可实现监测两终端之间的距离，并在无线信号强度小于无线信号强度报警阈值时，即两终端之间的距离大于预设的两终端之间的报警距离时，发出报警，实现防丢提醒功能，如此可避免由于个体差异造成的距离检测误差，实现更加精准的距离定位。The first terminal 10 and the second terminal 20 establish a short-distance wireless communication connection for the first time, and the first terminal 10 enters the calibration mode. In the calibration mode, after establishing the correspondence between the distance between the two terminals and the wireless signal strength, the correspondence and The unique identification information of the second terminal 20 is stored in the memory 14 in a one-to-one correspondence, so as to be recalled when a short-distance wireless communication connection is established next time. After the corresponding relationship is established, a wireless signal strength alarm threshold is obtained according to the corresponding relationship and the alarm distance between the two terminals. By monitoring the wireless signal strength, the distance between the two terminals can be monitored, and when the wireless signal strength is less than the wireless signal strength When the alarm threshold is reached, that is, when the distance between the two terminals is greater than the preset alarm distance between the two terminals, an alarm will be issued to realize the anti-lost reminder function, which can avoid distance detection errors caused by individual differences and achieve more accurate distance position.
具体的，无线信号强度获取模块12用于退出校准模式后，实时获取短距离无线通信连接的无线信号强度；第一报警模块13还用于判断实时获取的无线信号强度是否小于该无线信号强度报警阈值；若是，发出第一报警；否则，不发出第一报警，继续实时获取所述短距离无线通信连接的无线信号强度。Specifically, the wireless signal strength acquisition module 12 is used to obtain the wireless signal strength of the short-distance wireless communication connection in real time after exiting the calibration mode; the first alarm module 13 is also used to judge whether the wireless signal strength obtained in real time is less than the wireless signal strength alarm threshold; if yes, issue a first alarm; otherwise, do not issue a first alarm, and continue to obtain the wireless signal strength of the short-distance wireless communication connection in real time.
第一通信连接模块11用于与第二终端20建立短距离无线通信连接；数值处理模块15还用于判断存储器14中是否存储有与第二终端20的唯一标识信息对应的对应关系；若是，表明两终端不为首次建立短距离无线通信连接，且之前已建立了两终端之间的距离与无线信号强度的对应关系，直接调用即可，直接从存储器14中获取该对应关系；否则，表明两终端为首次建立短距离无线通信连接，或之前未建立两终端之间的距离与无线信号强度的对应关系，此时，控制第一终端10进入校准模式，建立两终端之间的距离与无线信号强度的对应关系。The first communication connection module 11 is used to establish a short-distance wireless communication connection with the second terminal 20; the numerical processing module 15 is also used to judge whether there is a correspondence relationship corresponding to the unique identification information of the second terminal 20 stored in the memory 14; if so, It indicates that the two terminals are not establishing a short-distance wireless communication connection for the first time, and the corresponding relationship between the distance between the two terminals and the wireless signal strength has been established before, and the corresponding relationship can be directly called, and the corresponding relationship is obtained directly from the memory 14; otherwise, it indicates that The two terminals establish a short-distance wireless communication connection for the first time, or the corresponding relationship between the distance between the two terminals and the wireless signal strength has not been established before. At this time, the first terminal 10 is controlled to enter the calibration mode, and the distance and wireless signal strength between the two terminals are established. Correspondence of signal strength.
具体的，第一时钟模块17用于实时获取当前时间；第一时钟模块17和第二时钟模块25通过短距离无线通信实现时钟同步。Specifically, the first clock module 17 is used to obtain the current time in real time; the first clock module 17 and the second clock module 25 implement clock synchronization through short-distance wireless communication.
第一声波收发模块18用于启动声波检测功能，获取当前时间，将当前时间作为声波发送时间，编码成检测声波，通过声波方式发送出去；数值处理模块15还用于通过短距离无线通信从第二终端20获取检测声波的声波传输时间；检测声波的声波传输时间为第二终端20根据接收到检测声波的时间以及声波发送时间计算获得；数值处理模块15还用于根据检测声波的声波传输时间和声波的传输速度计算获得建立短距离无线通信连接的第一终端10与第二终端20之间的距离；数值处理模块15还用于在获得两终端之间的距离之后，向第一声波收发模块18发送关闭声波检测功能的控制信号；第一声波收发模块18还用于在收到数值处理模块15发送的关闭声波检测功能的控制信号后，关闭声波检测功能。The first sound wave transceiver module 18 is used to start the sound wave detection function, obtains the current time, uses the current time as the sound wave transmission time, encodes the detection sound wave, and sends it out by sound wave mode; The second terminal 20 acquires the sound wave transmission time of the detection sound wave; the sound wave transmission time of the detection sound wave is calculated by the second terminal 20 according to the time when the detection sound wave is received and the sound wave transmission time; the numerical processing module 15 is also used for detecting the sound wave according to the sound wave transmission Time and the transmission speed of the sound wave are calculated to obtain the distance between the first terminal 10 and the second terminal 20 establishing the short-distance wireless communication connection; The wave transceiver module 18 sends a control signal to turn off the sound wave detection function; the first sound wave transceiver module 18 is also used to turn off the sound wave detection function after receiving the control signal to turn off the sound wave detection function sent by the numerical processing module 15 .
声波检测功能在需要建立对应关系时开启，以获得两终端之间的距离，并在获取到该距离后，立即关闭声波检测功能，减小第一终端10的能量损耗。The sound wave detection function is turned on when a corresponding relationship needs to be established to obtain the distance between the two terminals, and immediately after the distance is obtained, the sound wave detection function is turned off to reduce the energy loss of the first terminal 10 .
具体的，建立两终端之间的距离与无线信号强度的对应关系需要两个数据，即两终端之间的距离和对应该距离下的短距离无线通信连接的无线信号强度。无线信号强度获取模块12还用于获取接收到声波传输时间时短距离无线通信连接的无线信号强度；数值处理模块15还用于根据获得的两终端之间的距离与接收到所述声波传输时间时所述短距离无线通信连接的无线信号强度生成一关联数据文件，存储于存储器14中。Specifically, establishing the correspondence between the distance between the two terminals and the wireless signal strength requires two pieces of data, that is, the distance between the two terminals and the wireless signal strength of the short-distance wireless communication connection corresponding to the distance. The wireless signal strength acquisition module 12 is also used to obtain the wireless signal strength of the short-distance wireless communication connection when the sound wave transmission time is received; When the wireless signal strength of the short-distance wireless communication connection is generated, an associated data file is stored in the memory 14 .
数值处理模块15还用于判断存储器14中的关联数据文件的数量是否小于预设的数量阈值；若是，向第一报警模块13发出第二报警控制信号；否则，根据存储的关联数据文件建立两终端之间的距离与该距离下短距离无线通信连接的无线信号强度的对应关系，将建立的对应关系存储于存储器14中，并控制第一终端10退出校准模式。Numerical processing module 15 is also used for judging whether the quantity of the associated data file in memory 14 is less than preset quantity threshold value; If so, send the second warning control signal to first alarm module 13; Otherwise, set up two according to the associated data file of storage. The corresponding relationship between the distance between the terminals and the wireless signal strength of the short-distance wireless communication connection under the distance is stored in the memory 14, and the first terminal 10 is controlled to exit the calibration mode.
采取本实施例的智能报警的系统，通过声波的发送和接收的时间差得出两终端之间的距离，并将两终端之间的距离和无线信号强度关联起来，建立对应关系，对应关系的表现形式有多种，如：关系式或关系曲线等，不同的设备，其使用的无线信号强度与两终端之间的距离的对应关系不同，仅需要在首次建立通信连接时进行几次数据采集便能获得，并且在获得该对应关系后，将第二终端20的唯一标识信息和该对应关系一一对应的存储于存储器14中，如建立一个包含两者数据的数据库，该数据库可包含多个个唯一标识信息及与多个唯一标识信息一一对应的对应关系，如此便能弥补不同设备的无线功率的个体差异，实现精准定位，极大提高了该系统的适用设备和应用场景。The intelligent alarm system of this embodiment is used to obtain the distance between the two terminals through the time difference between the sending and receiving of the sound wave, and associate the distance between the two terminals with the wireless signal strength to establish a corresponding relationship and the performance of the corresponding relationship There are many forms, such as: relational formula or relational curve, etc. Different devices have different corresponding relationships between the wireless signal strength used and the distance between the two terminals. can be obtained, and after obtaining the corresponding relationship, the unique identification information of the second terminal 20 and the corresponding relationship are stored in the memory 14 in a one-to-one correspondence, such as establishing a database containing both data, the database can include multiple One unique identification information and one-to-one correspondence with multiple unique identification information, so that individual differences in wireless power of different devices can be compensated, accurate positioning can be achieved, and the applicable equipment and application scenarios of the system can be greatly improved.
第一报警模块13还用于在收到第二报警控制信号时，发出第二报警，提示用户移动第一终端和/或第二终端的位置。The first alarm module 13 is further configured to issue a second alarm when receiving the second alarm control signal, prompting the user to move the location of the first terminal and/or the second terminal.
第一报警和第二报警的作用不一样，因此，采用的报警方式区分开更好，如第一报警采用声音报警，第二报警则采用声光报警等，当然，两报警的方式也可采用相同的报警方式，如同时采用声光报警灯。本实施例中，第二报警的报警方式采用指示灯闪烁进行报警，第二报警的报警方式采用播放音频进行报警。The functions of the first alarm and the second alarm are different. Therefore, it is better to distinguish the alarm methods used. For example, the first alarm uses sound alarm, and the second alarm uses sound and light alarm. Of course, the two alarm methods can also be used. The same alarm method, such as using sound and light alarm lights at the same time. In this embodiment, the alarm mode of the second alarm adopts the blinking of the indicator light for alarming, and the alarm mode of the second alarm adopts playing audio for alarming.
第一终端10还包括控制开关19；控制开关19包括启动声波检测功能的功能按钮，用于第一报警模块13发出第二报警后，若检测到启动声波检测功能的功能按钮被点击或触控生效，向第一声波收发模块18发送控制第一终端10启动声波检测功能的开关控制信号；第一声波收发模块18还用于实时检测是否收到控制第一终端10启动声波检测功能的开关控制信号，若是，启动声波检测功能，获取当前时间，将当前时间作为声波发送时间，编码成检测声波，通过声波方式发送出去；否则，继续检测是否收到控制第一终端10启动声波检测功能的开关控制信号。The first terminal 10 also includes a control switch 19; the control switch 19 includes a function button for starting the sound wave detection function, for after the first alarm module 13 sends a second alarm, if it is detected that the function button for starting the sound wave detection function is clicked or touched Take effect, send to the first sound wave transceiver module 18 the switch control signal that controls the first terminal 10 to start the sound wave detection function; Switch control signal, if so, start the sound wave detection function, obtain the current time, use the current time as the sound wave sending time, encode it into a detection sound wave, and send it out by sound wave mode; otherwise, continue to detect whether it is received and control the first terminal 10 to start the sound wave detection function switch control signal.
第二通信连接模块21用于与第一终端10建立短距离无线通信连接；The second communication connection module 21 is used to establish a short-distance wireless communication connection with the first terminal 10;
第二时钟模块25用于实时获取当前的时间；第二声波收发模块23用于实时检测是否接收到第一终端10发出的检测声波；若否，继续检测是否接收到第一终端10发出的检测声波；若是，通知声波传输时间获取模块从第二时钟模块25获取当前时间，即第二终端20接收到该检测声波的时间；第二声波收发模块23还用于对接收的检测声波进行解码，获得该检测声波中包含的声波发送时间；The second clock module 25 is used to obtain the current time in real time; the second sound wave transceiver module 23 is used to detect in real time whether the detection sound wave sent by the first terminal 10 is received; if not, continue to detect whether the detection sound wave sent by the first terminal 10 is received Sound wave; If so, notify the sound wave transmission time acquisition module to obtain the current time from the second clock module 25, that is, the time when the second terminal 20 receives the detection sound wave; the second sound wave transceiver module 23 is also used to decode the detection sound wave received, Obtain the sending time of the sound wave contained in the detection sound wave;
声波传输时间获取模块24用于从第二时钟模块25获取接收到检测声波的时间以及从第二声波收发模块23获取检测声波的声波发送时间；还用于根据接收到检测声波的时间与声波发送时间得到检测声波的声波传输时间；还用于通过短距离无线通信将声波传输时间发送至第一终端。Acoustic transmission time acquisition module 24 is used for obtaining the time of receiving detection acoustic wave from second clock module 25 and obtaining the acoustic wave transmission time of detection acoustic wave from second acoustic wave transceiver module 23; The time is used to obtain the sound wave transit time of the detected sound wave; it is also used to send the sound wave transit time to the first terminal through short-distance wireless communication.
第一声波收发模块18启动声波检测功能后，由于考虑到检测声波有可能传输不到第二终端的情况，为确保声波信号能够传输到第二终端20，如遇到障碍物等因素，可设置为每隔一定时间发送一次检测声波，第一声波收发模块18若第二终端20根据检测声波返回的声波传输时间，则可立即关闭声波检测功能，减小能量损耗。After the first sound wave transceiver module 18 starts the sound wave detection function, due to consideration that the detected sound wave may not be transmitted to the second terminal, in order to ensure that the sound wave signal can be transmitted to the second terminal 20, if encountering factors such as obstacles, you can Set to send detection sound waves at regular intervals, the first sound wave transceiver module 18 can immediately turn off the sound wave detection function to reduce energy loss if the second terminal 20 returns the sound wave transmission time according to the detection sound waves.
具体的，第一终端10还包括阈值设置模块16，用于预先设置一数量阈值和一报警距离；其中，报警距离为第一终端和第二终端之间的报警距离。Specifically, the first terminal 10 further includes a threshold setting module 16, configured to preset a quantity threshold and an alarm distance; wherein, the alarm distance is the alarm distance between the first terminal and the second terminal.
具体的，控制开关19还包括启动校准模式的功能按钮，用于若检测到启动校准模式的功能按钮被点击或触控生效，向数值处理模块15发送控制第一终端10进入校准模式的开关控制信号；数值处理模块15还用于实时检测是否收到控制第一终端10进入校准模式的开关控制信号；若是，控制第一终端10进入校准模式；否则，根据第二终端20的唯一标识信息查询存储器14，判断存储器14中是否存储有与该唯一标识信息对应的对应关系。Specifically, the control switch 19 also includes a function button for starting the calibration mode, which is used to send a switch control to the numerical processing module 15 to control the first terminal 10 to enter the calibration mode if it is detected that the function button for starting the calibration mode is clicked or touched. signal; the numerical processing module 15 is also used to detect in real time whether the switch control signal for controlling the first terminal 10 to enter the calibration mode is received; if so, control the first terminal 10 to enter the calibration mode; otherwise, query according to the unique identification information of the second terminal 20 The memory 14 judges whether the correspondence relationship corresponding to the unique identification information is stored in the memory 14 .
具体的，第一通信连接模块11和第二通信连接模块21为蓝牙功能模块；第一终端10与第二终端20通过蓝牙建立短距离无线通信连接。。Specifically, the first communication connection module 11 and the second communication connection module 21 are Bluetooth functional modules; the first terminal 10 and the second terminal 20 establish a short-distance wireless communication connection through Bluetooth. .
本实施例中，除第一次建立短距离无线通信连接时，进入校准模式外，也可通过功能按钮或功能键以使能主动进入该校准模式，如某些应用场景对于射频信号影响较大，采用之前的对应关系可能也会存在定位误差，此时，通过触发该功能按钮或功能键主动进入校准模式重新建立该环境下时无线信号强度和距离的对应关系，以便于实现精准定位。In this embodiment, in addition to entering the calibration mode when establishing a short-distance wireless communication connection for the first time, you can also enter the calibration mode actively through a function button or function key, such as certain application scenarios that have a greater impact on radio frequency signals , there may also be positioning errors using the previous correspondence. At this time, trigger the function button or function key to actively enter the calibration mode to re-establish the correspondence between wireless signal strength and distance in this environment, so as to achieve accurate positioning.
请参考图2，图2是本发明实施例提供的智能报警的方法流程图，该方法包括：Please refer to FIG. 2. FIG. 2 is a flowchart of a method for intelligent alarm provided by an embodiment of the present invention. The method includes:
S100、预先设置一数量阈值和两终端之间的报警距离。S100. Preset a quantity threshold and an alarm distance between two terminals.
本步骤为预置步骤，第一终端10在和第二终端20建立短距离通信连接之前，通过阈值设置模块16可对数量阈值、两终端之间的报警距离进行设定。This step is a preset step. Before the first terminal 10 establishes a short-distance communication connection with the second terminal 20, the threshold setting module 16 can set the quantity threshold and the alarm distance between the two terminals.
数量阈值为所需获取的关联数据文件个数量，每次启动声波检测功能后，能获取一个关联数据文件。The quantity threshold is the number of associated data files that need to be obtained, and one associated data file can be obtained each time the sound wave detection function is activated.
S110、第一终端10和第二终端20建立短距离无线通信连接。S110, the first terminal 10 and the second terminal 20 establish a short-distance wireless communication connection.
其中，第一通信连接模块11和第二通信连接模块21均为蓝牙功能模块，通过蓝牙使第一终端10和第二终端20建立短距离无线通信连接，实现数据和信息交互。Wherein, both the first communication connection module 11 and the second communication connection module 21 are Bluetooth functional modules, which allow the first terminal 10 and the second terminal 20 to establish a short-distance wireless communication connection through Bluetooth to realize data and information interaction.
S120、获取第二终端20的唯一标识信息。S120. Acquire unique identification information of the second terminal 20.
本实施例中，第二终端20的唯一标识信息为第二终端20用于通信的物理地址。In this embodiment, the unique identification information of the second terminal 20 is the physical address of the second terminal 20 used for communication.
S130、实时检测是否收到控制第一终端10进入校准模式的开关控制信号；若是，进入步骤S151，否则，进入步骤S140。S130. Detect in real time whether a switch control signal for controlling the first terminal 10 to enter the calibration mode is received; if yes, go to step S151; otherwise, go to step S140.
某些应用场景对于射频信号影响较大，采用之前的对应关系可能也会存在定位误差，此时，可通过一控制开关19选择性进入校准模式，重新建立该环境下时无线信号强度和距离的对应关系，以便于实现精准定位。Some application scenarios have a greater impact on radio frequency signals, and there may be positioning errors when using the previous corresponding relationship. At this time, a control switch 19 can be used to selectively enter the calibration mode to re-establish the wireless signal strength and distance in this environment. Correspondence, in order to achieve precise positioning.
S140、判断本地的存储器14中是否存储有与该唯一标识信息对应的第一终端10与第二终端20之间的距离与短距离无线通信连接的无线信号强度的对应关系；若是，进入步骤S150，否则，进入步骤S151。S140. Determine whether the corresponding relationship between the distance between the first terminal 10 and the second terminal 20 corresponding to the unique identification information and the wireless signal strength of the short-distance wireless communication connection is stored in the local memory 14; if so, proceed to step S150 , otherwise, go to step S151.
本步骤为判断第一终端10是否需要进入校准模式。This step is to determine whether the first terminal 10 needs to enter the calibration mode.
S150、从存储器14中获取该对应关系。S150. Acquire the corresponding relationship from the memory 14.
若存储器14中存储有与该唯一标识信息对应的第一终端10与第二终端20之间的距离与短距离无线通信连接的无线信号强度的对应关系，从存储器14中直接获取该对应关系。If the memory 14 stores the correspondence between the distance between the first terminal 10 and the second terminal 20 corresponding to the unique identification information and the wireless signal strength of the short-distance wireless communication connection, the correspondence is directly obtained from the memory 14 .
S151、控制第一终端10进入校准模式。S151. Control the first terminal 10 to enter a calibration mode.
若存储器14中未存储有与该唯一标识信息对应的第一终端10与第二终端20之间的距离与短距离无线通信连接的无线信号强度的对应关系，则表明需要建立该对应关系，进入步骤S152。If the corresponding relationship between the distance between the first terminal 10 and the second terminal 20 corresponding to the unique identification information and the wireless signal strength of the short-distance wireless communication connection is not stored in the memory 14, it indicates that the corresponding relationship needs to be established, and enter Step S152.
S152、校准模式下，获得建立短距离无线通信连接的第一终端10与第二终端20之间的距离。S152. In the calibration mode, obtain the distance between the first terminal 10 and the second terminal 20 establishing the short-distance wireless communication connection.
S153、建立两终端之间的距离与短距离无线通信连接的无线信号强度的对应关系。S153. Establish a correspondence relationship between the distance between the two terminals and the wireless signal strength of the short-distance wireless communication connection.
对于无线通信，无线信号强度与两终端之间的距离成反比。本实施例中，对于蓝牙，量化无线信号强度和距离的关系式为P＝A-10×n×lgd。其中，d为第一终端10和第二终端20之间的距离，P为第二终端20与第一终端10的距离为d时无线信号强度获取模块12采样到的无线信号强度，A为射频信号传输1米远时无线信号的无线信号强度，n为传播因子常数。从本关系式中可得知，无线信号强度与两终端之间的距离成反比。采样在多个距离下的无线信号的无线信号强度，并在该多个距离下分别通过声波检测的方式获取第一终端10和第二终端20之间的距离，即可得出当前环境下的传播因子常数和A的数值，如此，无线信号强度与两终端之间的距离便能关联起来，实现量化标记。For wireless communication, the wireless signal strength is inversely proportional to the distance between two terminals. In this embodiment, for Bluetooth, the relationship between the quantified wireless signal strength and the distance is P=A−10×n×lgd. Wherein, d is the distance between the first terminal 10 and the second terminal 20, P is the wireless signal strength sampled by the wireless signal strength acquisition module 12 when the distance between the second terminal 20 and the first terminal 10 is d, and A is the radio frequency The wireless signal strength of the wireless signal when the signal is transmitted 1 meter away, n is the propagation factor constant. It can be known from this relational expression that the wireless signal strength is inversely proportional to the distance between two terminals. Sampling the wireless signal strength of the wireless signal at multiple distances, and obtaining the distance between the first terminal 10 and the second terminal 20 respectively through acoustic wave detection at the multiple distances, can obtain the distance between the first terminal 10 and the second terminal 20 in the current environment. The propagation factor constant and the value of A, in this way, the wireless signal strength and the distance between the two terminals can be correlated to realize quantitative marking.
对于其他类型的无线通信，如WIFI(Wireless Fidelity，无线网络)、NFC(NearField Communication，近距离无线通讯技术)等，也可采用类似的方法得出该对应关系。如使用WIFI，将第一终端10作为热点，第一终端10发出的无线信号强度随着距离的增大不断衰减，通过多次采样第二终端20在不同距离下的无线信号强度，便可得到一关系曲线，进行计算出量化无线信号强度与两终端之间的距离的对应关系。For other types of wireless communication, such as WIFI (Wireless Fidelity, wireless network), NFC (NearField Communication, short-range wireless communication technology), etc., the corresponding relationship can also be obtained by using a similar method. If WIFI is used, the first terminal 10 is used as a hotspot, and the wireless signal strength sent by the first terminal 10 is continuously attenuated as the distance increases. By sampling the wireless signal strength of the second terminal 20 at different distances multiple times, it can be obtained A relationship curve is used to calculate the corresponding relationship between the quantified wireless signal strength and the distance between the two terminals.
S154、控制第一终端10退出校准模式，返回至步骤S150。S154. Control the first terminal 10 to exit the calibration mode, and return to step S150.
对应关系建立完成，即退出校准模式。After the corresponding relationship is established, the calibration mode is exited.
步骤S150之后还包括步骤S160。Step S160 is also included after step S150.
S160、获得预设的报警距离对应的无线信号强度报警阈值；S160. Obtain a wireless signal strength alarm threshold corresponding to the preset alarm distance;
步骤S150中获取到该对应关系后，根据该对应关系和预设的报警距离可得到一无线信号强度报警阈值。After the corresponding relationship is obtained in step S150, a wireless signal strength warning threshold can be obtained according to the corresponding relationship and the preset warning distance.
S170、实时获取短距离无线通信连接的无线信号强度。S170. Acquire the wireless signal strength of the short-distance wireless communication connection in real time.
退出校准模式后，实时获取短距离无线通信连接的无线信号强度，以监测第一终端10和第二终端20之间的距离，实现两终端的跟随功能。After exiting the calibration mode, the wireless signal strength of the short-distance wireless communication connection is obtained in real time, so as to monitor the distance between the first terminal 10 and the second terminal 20, and realize the following function of the two terminals.
S180、判断获取的无线信号强度是否小于无线信号强度报警阈值；若是，进入步骤S190，否则，返回至步骤S170。S180. Determine whether the acquired wireless signal strength is less than the wireless signal strength alarm threshold; if yes, go to step S190; otherwise, go back to step S170.
S190、发出第一报警。S190. Send a first alarm.
当无线信号强度小于无线信号强度报警阈值时，表明第一终端10和第二终端20之间的距离过远，发出第一报警，以提示用户两终端当前的距离过远。When the wireless signal strength is less than the wireless signal strength alarm threshold, it indicates that the distance between the first terminal 10 and the second terminal 20 is too far, and a first alarm is issued to remind the user that the current distance between the two terminals is too far.
第一报警模块13还可通过无线通信向第二终端20发送第一报警控制信号，控制第二终端20的第二报警模块22同时也发出报警。The first alarm module 13 can also send a first alarm control signal to the second terminal 20 through wireless communication, and control the second alarm module 22 of the second terminal 20 to issue an alarm at the same time.
请参考图3，图3是本发明实施例提供的建立对应关系的方法流程图。步骤S152具体包括：Please refer to FIG. 3 . FIG. 3 is a flowchart of a method for establishing a corresponding relationship provided by an embodiment of the present invention. Step S152 specifically includes:
S1521、启动声波检测功能。S1521, start the sound wave detection function.
第一终端10进入校准模式后，第一声波收发模块18开始启动声波检测功能，并向第二终端20发送启动声波检测功能的控制信号，控制第二终端20启动声波检测功能。After the first terminal 10 enters the calibration mode, the first sound wave transceiver module 18 starts the sound wave detection function, and sends a control signal to the second terminal 20 to start the sound wave detection function, and controls the second terminal 20 to start the sound wave detection function.
S1522、获取当前时间，将当前时间作为声波发送时间，编码成检测声波，通过声波方式发送出去。S1522. Obtain the current time, use the current time as the sound wave sending time, encode it into a detection sound wave, and send it out through sound waves.
声波检测功能启动后，第一声波收发模块18从第一时钟模块17获取当前时间，将当前时间作为声波发送时间，编码成检测声波，通过声波方式发送出去。After the sound wave detection function is started, the first sound wave transceiver module 18 obtains the current time from the first clock module 17, uses the current time as the sound wave sending time, encodes it into detection sound waves, and sends them out through sound waves.
S1523、从第二终端20获取该检测声波的声波传输时间。S1523. Acquire the sound wave transmission time of the detected sound wave from the second terminal 20.
通过短距离无线通信从第二终端20获取所述检测声波的声波传输时间。检测声波的声波传输时间为第二终端20根据接收到该检测声波的时间以及该检测声波的声波发送时间计算获得。Acquire the sound wave transmission time of the detected sound wave from the second terminal 20 through short-distance wireless communication. The sound wave transmission time of the detection sound wave is calculated and obtained by the second terminal 20 according to the time of receiving the detection sound wave and the sound wave sending time of the detection sound wave.
S1524、获取接收到声波传输时间时短距离无线通信连接的无线信号强度。S1524. Acquire the wireless signal strength of the short-distance wireless communication connection when the sound wave transmission time is received.
S1525、根据检测声波的声波传输时间和声波的传输速度计算获得建立短距离无线通信连接的第一终端10与第二终端20之间的距离。S1525. Calculate and obtain the distance between the first terminal 10 and the second terminal 20 establishing the short-distance wireless communication connection according to the sound wave transmission time of the detected sound wave and the sound wave transmission speed.
本步骤中，声波的传输速度是已知的，也很容易根据测量获取，故检测声波的声波传输时间和声波的传输速度的乘积即为建立短距离无线通信连接的第一终端10与第二终端20之间的距离。In this step, the transmission speed of the sound wave is known, and it is also easy to obtain according to the measurement. Therefore, the product of the sound wave transmission time of the detected sound wave and the transmission speed of the sound wave is the first terminal 10 and the second terminal 10 establishing a short-distance wireless communication connection. The distance between terminals 20.
S1526、关闭声波检测功能。S1526. Turn off the sound wave detection function.
获得两终端之间的距离以及该距离下的无线信号强度后，立即关闭第一终端10的声波检测功能，同时向第二终端20发送关闭声波检测功能的控制信号，控制第二终端关闭声波检测功能。进入步骤S1531。After obtaining the distance between the two terminals and the wireless signal strength at the distance, immediately turn off the sound wave detection function of the first terminal 10, and at the same time send a control signal to turn off the sound wave detection function to the second terminal 20, and control the second terminal to turn off the sound wave detection function. Features. Go to step S1531.
步骤S153具体包括：Step S153 specifically includes:
S1531、根据该距离与接收到声波传输时间时短距离无线通信连接的无线信号强度生成一关联数据文件，存储于存储器14中。S1531. Generate an associated data file according to the distance and the wireless signal strength of the short-distance wireless communication connection when the sound wave transmission time is received, and store it in the memory 14 .
S1532、判断存储器14中的关联数据文件的数量是否小于预设的数量阈值；若是，进入步骤S1533，否则，进入步骤S1532。S1532. Determine whether the number of associated data files in the memory 14 is less than a preset number threshold; if yes, go to step S1533; otherwise, go to step S1532.
对于不同的量化精度需求，所需的采样数据的数量也不同，本实施例中，采样数据即关联数据文件，对于蓝牙，无线信号强度和距离的对应关系为P＝A-10×n×lgd，只需得出A和n的值即可，故数量阈值为2即可得出对应关系。For different quantization accuracy requirements, the required quantity of sampling data is also different. In this embodiment, the sampling data is the associated data file. For Bluetooth, the corresponding relationship between wireless signal strength and distance is P=A-10×n×lgd , you only need to get the values of A and n, so the corresponding relationship can be obtained when the quantity threshold is 2.
S1532、建立该距离与短距离无线通信连接的无线信号强度的对应关系，将该对应关系存储于存储器14中。S1532. Establish a corresponding relationship between the distance and the wireless signal strength of the short-distance wireless communication connection, and store the corresponding relationship in the memory 14 .
数值处理模块15根据关联数据文件建立该距离与短距离无线通信连接的无线信号强度的对应关系，将该对应关系存储于存储器14中，并进入步骤S154。The numerical processing module 15 establishes the corresponding relationship between the distance and the wireless signal strength of the short-distance wireless communication connection according to the associated data file, stores the corresponding relationship in the memory 14, and proceeds to step S154.
S1533、发出第二报警。S1533. Send a second alarm.
第一报警模块13发出第二报警。提示用户移动第一终端和/或第二终端的位置；并向第二终端20发送第二报警控制信号，控制第二终端20的第二报警模块22也发出第二报警。The first alarm module 13 issues a second alarm. Prompt the user to move the location of the first terminal and/or the second terminal; and send a second alarm control signal to the second terminal 20, and the second alarm module 22 controlling the second terminal 20 also sends out a second alarm.
S1534、实时检测是否收到控制第一终端10启动声波检测功能的开关控制信号；若是，返回至步骤S1521；否则，返回至步骤S1533。S1534. Check in real time whether a switch control signal for controlling the first terminal 10 to activate the sound wave detection function is received; if yes, return to step S1521; otherwise, return to step S1533.
第一报警模块13发出第二报警后，控制开关19提供一启动声波检测功能的功能按钮，用于若检测到启动声波检测功能的功能按钮被点击或触控生效，向第一声波收发模块18发送控制第一终端10启动声波检测功能的开关控制信号。After the first alarm module 13 sends out the second alarm, the control switch 19 provides a function button for starting the sound wave detection function, if it is detected that the function button for starting the sound wave detection function is clicked or touched, the first sound wave transceiver module 18 Send a switch control signal for controlling the first terminal 10 to start the sound wave detection function.
第一声波收发模块18实时检测是否收到控制第一终端10启动声波检测功能的开关控制信号。若是，返回至步骤S1521，否则，返回至步骤S1533。The first sound wave transceiving module 18 detects in real time whether a switch control signal for controlling the first terminal 10 to activate the sound wave detection function is received. If yes, return to step S1521, otherwise, return to step S1533.
请参考图4，图4是本发明实施例提供的第二终端20获取声波传输时间的方法流程图。该方法包括：Please refer to FIG. 4 . FIG. 4 is a flowchart of a method for the second terminal 20 to obtain the sound wave transmission time according to an embodiment of the present invention. The method includes:
S210、实时检测是否接收到第一终端10发出的启动声波检测功能的控制信号；若是，进入步骤S220，否则，继续检测是否接收到第一终端10发出的启动声波检测功能的控制信号。S210 , detect in real time whether a control signal for activating the sound wave detection function sent by the first terminal 10 is received; if yes, proceed to step S220 , otherwise, continue to detect whether a control signal for activating the sound wave detection function sent by the first terminal 10 is received.
第二声波收发模块23实时检测是否接收到第一终端10发出的启动声波检测功能的控制信号，若是，启动声波检测功能，进入步骤S220，否则，继续检测是否接收到第一终端10发出的启动声波检测功能的控制信号。The second sound wave transceiver module 23 detects in real time whether the control signal for starting the sound wave detection function sent by the first terminal 10 is received, if so, starts the sound wave detection function, and enters step S220; Control signal for the acoustic detection function.
S220、实时检测是否接收到第一终端10发出的检测声波；若否，继续检测是否接收到第一终端10发出的所述检测声波；若是，进入步骤S230。S220. Detect in real time whether the detection sound wave sent by the first terminal 10 is received; if not, continue to detect whether the detection sound wave sent by the first terminal 10 is received; if yes, enter step S230.
第二声波收发模块23启动声波检测功能后，实时检测是否接收到第一终端10发出的检测声波。After the second sound wave transceiver module 23 activates the sound wave detection function, it detects in real time whether the detection sound wave sent by the first terminal 10 is received.
S230、获取接收到检测声波的时间。S230. Acquire the time when the detection sound wave is received.
第二声波收发模块23收到检测声波后，从第二时钟模块25获取当前时间，即获取接收到检测声波的时间。After receiving the detection sound wave, the second sound wave transceiver module 23 obtains the current time from the second clock module 25 , that is, obtains the time when the detection sound wave is received.
S240、对检测声波进行解码，获得检测声波的声波发送时间。S240. Decode the detection sound wave to obtain the sound wave sending time of the detection sound wave.
第二声波收发模块23对检测声波进行解码，获得检测声波的声波发送时间。The second sound wave transceiver module 23 decodes the detection sound wave to obtain the sound wave sending time of the detection sound wave.
S250、根据接收到检测声波的时间与声波发送时间得到检测声波的声波传输时间。S250. Obtain the sound wave transmission time of the detection sound wave according to the time of receiving the detection sound wave and the sound wave sending time.
声波传输时间获取模块24将获得两个时间进行差值运算，获得检测声波的声波传输时间。The sound wave transmission time acquisition module 24 will obtain the two times and perform difference calculation to obtain the sound wave transmission time of the detected sound wave.
S260、通过短距离无线通信将声波传输时间发送至第一终端10。S260. Send the sound wave transmission time to the first terminal 10 through short-distance wireless communication.
声波传输时间获取模块24通过短距离无线通信将声波传输时间发送至第一终端10。The acoustic wave transmission time acquisition module 24 sends the acoustic wave transmission time to the first terminal 10 through short-distance wireless communication.
本实施例中，第二终端20为穿戴式设备，包括：手机、手表、手表式手机、腕带等。第一终端10为手机或平板电脑等便携式设备，该便携式设备还包括：一个或者一个以上的处理器，和一个或者一个以上的程序；其中，一个或者一个以上程序存储于存储器14中，且经配置由一个或者一个以上处理器执行，一个或者一个以上程序包含用于进行以上步骤的指令。In this embodiment, the second terminal 20 is a wearable device, including: a mobile phone, a watch, a watch-type mobile phone, a wristband, and the like. The first terminal 10 is a portable device such as a mobile phone or a tablet computer, and the portable device also includes: one or more processors, and one or more programs; wherein, one or more programs are stored in the memory 14, and through Configuration is performed by one or more processors, and one or more programs contain instructions for performing the above steps.
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成，也可以通过程序来指令相关的硬件完成，该程序可以存储于一计算机可读存储介质中，存储介质可以包括存储器、磁盘或光盘等。Those of ordinary skill in the art can understand that all or part of the steps for realizing the above-mentioned embodiments can be completed by hardware, and can also be completed by instructing related hardware through a program. The program can be stored in a computer-readable storage medium, and the storage medium can include memory, disk or CD, etc.
以上内容仅为本发明的较佳实施例，对于本领域的普通技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，本说明书内容不应理解为对本发明的限制。The above content is only a preferred embodiment of the present invention. For those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation and application scope. limits.
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| CN201410857554.3AActiveCN104599455B (en) | 2014-12-31 | 2014-12-31 | Intelligent alarm method and system |
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