本发明涉及电子设备领域，尤其涉及一种预警人员危险状态的系统及方法。The present invention relates to the field of electronic equipment, and in particular to a system and method for warning personnel of dangerous conditions.
在各种需要保护人员安全的场景中，例如建筑工地、工厂车间、矿山等，需要时刻关注人员健康情况，从而及时救助人员生命安全，减少人员伤亡。若采用人工巡查，需花费较长时间，且人员信息统计繁琐，容易造成安全事故的发生。目前，也出现了用于监控人员健康情况的智能装备，如人员佩戴安置了心率检测设备的衣物等，但是检测设备获取的数据较为单一，识别算法并不精准，因此无法准确的判断人员是摔倒还是其他动作引起的误判。In various scenarios where personnel safety needs to be protected, such as construction sites, factory workshops, mines, etc., it is necessary to pay attention to the health of personnel at all times, so as to rescue personnel's lives in time and reduce casualties. If manual inspections are used, it will take a long time, and the statistics of personnel information are cumbersome, which is easy to cause safety accidents. At present, there are also intelligent equipment for monitoring personnel's health, such as personnel wearing clothes equipped with heart rate detection equipment, etc., but the data obtained by the detection equipment is relatively single, and the recognition algorithm is not accurate, so it is impossible to accurately judge whether the person fell or was misjudged due to other actions.
因此，如何提供一种能够及时、准确地检测人员危险状态的预警人员危险状态的系统及方法是本领域技术人员亟待解决的一个技术问题。Therefore, how to provide a system and method that can timely and accurately detect and warn personnel of dangerous conditions is a technical problem that needs to be solved urgently by those skilled in the art.
发明内容Summary of the invention
本发明提供一种预警人员危险状态的系统及方法，以解决上述技术问题。The present invention provides a system and method for warning personnel of dangerous conditions to solve the above technical problems.
为解决上述技术问题，本发明提供一种预警人员危险状态的系统，包括多个传感采集单元和数据处理装置，In order to solve the above technical problems, the present invention provides a system for warning personnel of dangerous conditions, including multiple sensor collection units and a data processing device.
所述传感采集单元安装于劳动防护设备中，所述劳动防护设备至少包括头戴设备、衣物和鞋子，所述传感采集单元包括三轴加速度传感器、三轴陀螺仪以及磁力计，各个所述劳动防护设备中的三轴加速度传感器、三轴陀螺仪以及磁力计用于采集人体不同部位的姿态信息；The sensing acquisition unit is installed in the labor protection equipment, which at least includes a head-mounted device, clothing and shoes. The sensing acquisition unit includes a three-axis acceleration sensor, a three-axis gyroscope and a magnetometer. The three-axis acceleration sensor, the three-axis gyroscope and the magnetometer in each of the labor protection equipment are used to collect posture information of different parts of the human body;
所述数据处理装置包括智能手环和集成于所述智能手环中的心率检测模块、血氧检测模块和温度传感器，所述心率检测模块、血氧检测模块和温度传感器用于检测人体的生理信息；The data processing device includes a smart bracelet and a heart rate detection module, a blood oxygen detection module and a temperature sensor integrated in the smart bracelet, wherein the heart rate detection module, the blood oxygen detection module and the temperature sensor are used to detect physiological information of a human body;
各个所述传感采集单元与所述数据处理装置信号连接，所述数据处理装置基于所述姿态信息和生理信息判断人员状态并基于所述人员状态获取预警信息。Each of the sensor collection units is connected to the data processing device by signal. The status of the person is determined based on the posture information and the physiological information, and warning information is obtained based on the status of the person.
较佳地，所述传感采集单元还包括ADC转换器和蓝牙模块，所述ADC转换器将所述三轴加速度传感器、三轴陀螺仪以及磁力计检测到的模拟信号转换成数字信号，并经由所述蓝牙模块传递至所述数据处理装置中。Preferably, the sensing acquisition unit further includes an ADC converter and a Bluetooth module, wherein the ADC converter converts analog signals detected by the three-axis acceleration sensor, the three-axis gyroscope and the magnetometer into digital signals, and transmits the digital signals to the data processing device via the Bluetooth module.
较佳地，所述三轴加速度传感器、三轴陀螺仪以及磁力计的工作电压均小于5V。Preferably, the operating voltage of the three-axis acceleration sensor, the three-axis gyroscope and the magnetometer is less than 5V.
较佳地，所述数据处理装置还包括集成于所述智能手环中的通讯模块、SIM卡以及带有充电端口的电源模块，所述智能手环通过所述通讯模块连接至云端和/或移动端。Preferably, the data processing device also includes a communication module, a SIM card and a power module with a charging port integrated in the smart bracelet, and the smart bracelet is connected to the cloud and/or mobile terminal through the communication module.
本发明还提供了一种预警人员危险状态的方法，应用于如上所述的系统中，包括如下步骤：The present invention also provides a method for early warning of dangerous status of personnel, which is applied to the system as described above and comprises the following steps:
步骤1：人员穿戴安装有所述传感采集单元的各个劳动防护设备，利用各个所述传感采集单元循环采集人体不同部位的姿态信息；佩戴所述智能手环并利用集成于所述智能手环中的心率检测模块、血氧检测模块和温度传感器循环检测人体的生理信息；Step 1: A person wears various labor protection equipment equipped with the sensor collection unit, and uses each of the sensor collection units to cyclically collect posture information of different parts of the human body; wears the smart bracelet and uses the heart rate detection module, blood oxygen detection module and temperature sensor integrated in the smart bracelet to cyclically detect the physiological information of the human body;
步骤2：所述智能手环基于所述姿态信息并结合所述生理信息判断人员状态并基于所述人员状态获取预警信息。Step 2: The smart bracelet determines the status of the person based on the posture information and in combination with the physiological information and obtains warning information based on the status of the person.
较佳地，利用各个所述传感采集单元循环采集人体不同部位的姿态信息包括：Preferably, using each of the sensing collection units to cyclically collect posture information of different parts of the human body includes:
步骤11：采用三轴加速度传感器循环采集加速度数据、采用三轴陀螺仪循环采集角速度数据、采用磁力计循环采集磁场坐标数据；Step 11: using a three-axis acceleration sensor to cyclically collect acceleration data, using a three-axis gyroscope to cyclically collect angular velocity data, and using a magnetometer to cyclically collect magnetic field coordinate data;
步骤12：通过提取特征量获取加速度值、角速度值以及磁场方向变化值；Step 12: Obtain acceleration value, angular velocity value and magnetic field direction change value by extracting feature quantities;
步骤13：将获取的加速度值、角速度值以及磁场方向变化值与预先设置的第一阈值进行对比分析，判断人员是否摔倒、严重摔倒或高空跌落。Step 13: Compare and analyze the acquired acceleration value, angular velocity value, and magnetic field direction change value with a preset first threshold value to determine whether the person has fallen, fallen severely, or fallen from a height.
较佳地，所述第一阈值设定为三档：Preferably, the first threshold is set to three levels:
对于安装于头戴设备上的所述传感采集单元，For the sensor collection unit installed on the head-mounted device,
第一档为：加速度阈值为1.0m/s2，角速度值为5°/s度，磁场方向的变化角度阈值为15度；The first level is: the acceleration threshold is 1.0m/s2 , the angular velocity value is 5°/s, and the angle threshold of the magnetic field direction change is 15 degrees;
第二档为：加速度阈值为2.5m/s2，角速度值为15°/s度，磁场方向的变化角度阈值为30度；The second gear is: the acceleration threshold is 2.5m/s2 , the angular velocity value is 15°/s, and the angle threshold of the magnetic field direction change is 30 degrees;
第三档为：加速度阈值为5.0m/s2，角速度值为25°/s度，磁场方向的变化角度阈值为50度；The third level is: the acceleration threshold is 5.0m/s2 , the angular velocity value is 25°/s, and the angle threshold of the magnetic field direction change is 50 degrees;
对于安装于衣物上的所述传感采集单元，For the sensor collection unit installed on the clothing,
第一档为：加速度阈值为1.5m/s2，角速度阈值为10°/s度，磁场方向的变化角度阈值为15度；The first level is: the acceleration threshold is 1.5m/s2 , the angular velocity threshold is 10°/s, and the angle threshold of the magnetic field direction change is 15 degrees;
第二档为：加速度阈值为3.5m/s2，角速度阈值为20°/s度，磁场方向的变化角度阈值为40度；The second level is: the acceleration threshold is 3.5m/s2 , the angular velocity threshold is 20°/s, and the angle threshold of the magnetic field direction change is 40 degrees;
第三档为：加速度阈值为7.0m/s2，角速度阈值为30°/s度，磁场方向的变化角度阈值为60度；The third level is: the acceleration threshold is 7.0m/s2 , the angular velocity threshold is 30°/s, and the angle threshold of the magnetic field direction change is 60 degrees;
对于安装于鞋子上的所述传感采集单元，For the sensor collection unit installed on the shoe,
第一档为：加速度阈值为1.96m/s2，角速度阈值为15°/s度，磁场方向的变化角度阈值为20度；The first level is: the acceleration threshold is 1.96m/s2 , the angular velocity threshold is 15°/s, and the angle threshold of the magnetic field direction change is 20 degrees;
第二档为：加速度阈值为4.8m/s2，角速度阈值为25°/s度，磁场方向的变化角度阈值为60度；The second level is: the acceleration threshold is 4.8m/s2 , the angular velocity threshold is 25°/s, and the angle threshold of the magnetic field direction change is 60 degrees;
第三档为：加速度阈值为8.4m/s2，角速度阈值为35°/s度，磁场方向的变化角度阈值为90度。The third level is: the acceleration threshold is 8.4 m/s2 , the angular velocity threshold is 35°/s, and the angle threshold of the magnetic field direction change is 90 degrees.
较佳地，当有两个劳动防护设备中的所述传感采集单元提取的特征量达到所述第一阈值的第二档时，判断人员摔倒；当三个劳动防护设备中的所述传感采集单元提取的特征量达到所述第一阈值的第三档时，判断人员严重摔倒或高空跌落。Preferably, when the feature quantities extracted by the sensor acquisition units in two labor protection devices reach the second level of the first threshold, it is judged that the person has fallen; when the feature quantities extracted by the sensor acquisition units in three labor protection devices reach the third level of the first threshold, it is judged that the person has fallen seriously or fallen from a height.
较佳地，利用集成于所述智能手环中的心率检测模块、血氧检测模块和温度传感器循环检测人体的生理信息的方法包括：Preferably, the method of cyclically detecting physiological information of a human body using the heart rate detection module, blood oxygen detection module and temperature sensor integrated in the smart bracelet includes:
步骤14：采用心率检测模块循环检测心率值、采用血氧检测模块循环检测血氧饱和度、采用温度传感器循环检测体温；Step 14: Use the heart rate detection module to cyclically detect the heart rate value, use the blood oxygen detection module to cyclically detect the blood oxygen saturation, and use the temperature sensor to cyclically detect the body temperature;
步骤15：将检测到的心率值、血氧饱和度以及体温与预先设定好的第二阈值进行对比分析，判断人体生理状态是否正常。Step 15: Compare and analyze the detected heart rate value, blood oxygen saturation and body temperature with the pre-set second threshold value to determine whether the human body's physiological state is normal.
较佳地，所述第二阈值设定为：Preferably, the second threshold is set as:
心率阈值设定为60bpm和120bpm，血氧饱和度阈值设定为90％，体温阈值设定为37℃，当检测到的心率值小于60bpm或大于120bpm时，或者血氧饱和度小于90％时，或者体温大于37℃时，判断人体生理状态异常。The heart rate thresholds are set to 60bpm and 120bpm, the blood oxygen saturation threshold is set to 90%, and the body temperature threshold is set to 37°C. When the detected heart rate value is less than 60bpm or greater than 120bpm, or the blood oxygen saturation is less than 90%, or the body temperature is greater than 37°C, the human physiological state is judged to be abnormal.
与现有技术相比，本发明提供的预警人员危险状态的系统及方法具有如下优点：Compared with the prior art, the system and method for early warning of dangerous status of personnel provided by the present invention have the following advantages:
1、提高安全性能：本发明可以利用传感采集单元实时监测人员的动作、姿态等信息，及时判断人员是否处于危险状态，从而提高工作场所的安全性；1. Improve safety performance: The present invention can use the sensor collection unit to monitor the movement, posture and other information of personnel in real time, and promptly determine whether the personnel are in a dangerous state, thereby improving the safety of the workplace;
2、减少事故发生率：通过对人员动作、姿态等信息进行分析和预警，可以及时发现并避免潜在的安全隐患，减少事故发生率；2. Reduce the accident rate: By analyzing and warning information such as personnel movements and postures, potential safety hazards can be discovered and avoided in a timely manner, reducing the accident rate;
3、提高工作效率：基于动作姿态预警人员危险状态可以自动化地监测人员的动作、姿态等信息，减轻人工监测的工作负担，提高工作效率；3. Improve work efficiency: Based on the action posture warning of dangerous status of personnel, the personnel's actions, postures and other information can be automatically monitored, which can reduce the workload of manual monitoring and improve work efficiency;
4、提高准确性：利用传感器收集和分析人员的动作、姿态等信息，结合危险状态识别算法，可以更准确地预测人员的危险状态，提高预警的准确性；4. Improve accuracy: Using sensors to collect and analyze information such as people's movements and postures, combined with dangerous state recognition algorithms, can more accurately predict people's dangerous states and improve the accuracy of early warnings;
5、可扩展性强：可以根据不同工作场所的需求，进行扩展和定制，适用于不同的工作场所和行业。5. Strong scalability: It can be expanded and customized according to the needs of different workplaces and is suitable for different workplaces and industries.
图1为本发明一具体实施方式中预警人员危险状态的系统的结构框图；FIG1 is a block diagram of a system for warning personnel of dangerous conditions in a specific embodiment of the present invention;
图2为本发明一具体实施方式中采集姿态信息并判断人员状态的流程图；FIG2 is a flow chart of collecting posture information and determining personnel status in a specific implementation manner of the present invention;
图3为本发明一具体实施方式中采集生理信息并判断人员状态的流程图。FIG3 is a flow chart of collecting physiological information and determining the status of a person in a specific embodiment of the present invention.
图中：10-传感采集单元、11-三轴加速度传感器、12-三轴陀螺仪、13-磁力计、14-ADC转换器、15-蓝牙模块、20-数据处理装置、21-智能手环、22-心率检测模块、23-血氧检测模块、24-温度传感器、25-通讯模块、26-SIM卡、27-电源模块、28-缓存模块、30-劳动防护设备。In the figure: 10-sensing acquisition unit, 11-three-axis acceleration sensor, 12-three-axis gyroscope, 13-magnetometer, 14-ADC converter, 15-Bluetooth module, 20-data processing device, 21-smart bracelet, 22-heart rate detection module, 23-blood oxygen detection module, 24-temperature sensor, 25-communication module, 26-SIM card, 27-power module, 28-cache module, 30-labor protection equipment.
为了更详尽的表述上述发明的技术方案，以下列举出具体的实施例来证明技术效果；需要强调的是，这些实施例用于说明本发明而不用于限制本发明的范围。In order to describe the technical solution of the above invention in more detail, specific embodiments are listed below to demonstrate the technical effects; it should be emphasized that these embodiments are used to illustrate the present invention but not to limit the scope of the present invention.
本发明提供的预警人员危险状态的系统，如图1所示，包括多个传感采集单元10和数据处理装置20，其中：The system for warning of dangerous status of personnel provided by the present invention, as shown in FIG1 , comprises a plurality of sensor collection units 10 and a data processing device 20, wherein:
所述传感采集单元10安装于劳动防护设备30中，所述劳动防护设备30至少包括头戴设备(如安全帽)、衣物(如反光背心)和鞋子(如劳保鞋)，所述传感采集单元10包括三轴加速度传感器11、三轴陀螺仪12以及磁力计13，各个所述劳动防护设备30中的三轴加速度传感器11、三轴陀螺仪12以及磁力计13用于采集人体不同部位的姿态信息。The sensing acquisition unit 10 is installed in the labor protection equipment 30, and the labor protection equipment 30 at least includes a headgear (such as a safety helmet), clothing (such as a reflective vest) and shoes (such as labor protection shoes). The sensing acquisition unit 10 includes a three-axis acceleration sensor 11, a three-axis gyroscope 12 and a magnetometer 13. The three-axis acceleration sensor 11, the three-axis gyroscope 12 and the magnetometer 13 in each of the labor protection equipment 30 are used to collect posture information of different parts of the human body.
所述数据处理装置20包括智能手环21和集成于所述智能手环21中的心率检测模块22、血氧检测模块23和温度传感器24，所述心率检测模块22、血氧检测模块23和温度传感器24用于检测人体的生理信息，具体地，可以采用发光二级管及光电二极管用于监测心率及血氧数值。The data processing device 20 includes a smart bracelet 21 and a heart rate detection module 22, a blood oxygen detection module 23 and a temperature sensor 24 integrated in the smart bracelet 21. The heart rate detection module 22, the blood oxygen detection module 23 and the temperature sensor 24 are used to detect physiological information of the human body. Specifically, light emitting diodes and photodiodes can be used to monitor heart rate and blood oxygen values.
各个所述传感采集单元10与所述数据处理装置20信号连接，所述数据处理装置20基于所述姿态信息和生理信息判断人员状态并基于所述人员状态获取预警信息。Each of the sensor collection units 10 is connected to the data processing device 20 by signal. The data processing device 20 determines the status of a person based on the posture information and physiological information and obtains warning information based on the status of the person.
本发明利用传感采集单元10采集人体不同部位的姿态信息，及时、准确地判断人员是否处于危险状态，从而提高安全性，减少事故发生率。The present invention utilizes the sensor collection unit 10 to collect posture information of different parts of the human body, and timely and accurately determines whether a person is in a dangerous state, thereby improving safety and reducing the accident rate.
在一些实施例中，请继续参考图1，所述传感采集单元10还包括ADC转换器14和蓝牙模块15，所述ADC转换器14将所述三轴加速度传感器11、三轴陀螺仪12以及磁力计13检测到的模拟信号转换成数字信号，并经由所述蓝牙模块15传递至所述数据处理装置20中，实现检测数据的转换和传递。In some embodiments, please continue to refer to Figure 1, the sensor acquisition unit 10 also includes an ADC converter 14 and a Bluetooth module 15, the ADC converter 14 converts the analog signals detected by the three-axis acceleration sensor 11, the three-axis gyroscope 12 and the magnetometer 13 into digital signals, and transmits them to the data processing device 20 via the Bluetooth module 15 to realize the conversion and transmission of the detection data.
在一些实施例中，三轴陀螺仪12可以采用Murata LPR系列的LPR530AL，最大测量范围在±2000deg/s；三轴加速度传感器11可以采用Analog Devices的ADXL335，测量范围在±3g；磁力计13可以采用Honeywell的HMC5983，测量范围在±8高斯。所述三轴加速度传感器11、三轴陀螺仪12以及磁力计13的工作电压均小于5V，便于小型化及随身佩戴。In some embodiments, the three-axis gyroscope 12 can use LPR530AL of Murata LPR series, with a maximum measurement range of ±2000deg/s; the three-axis acceleration sensor 11 can use ADXL335 of Analog Devices, with a measurement range of ±3g; the magnetometer 13 can use HMC5983 of Honeywell, with a measurement range of ±8 gauss. The operating voltage of the three-axis acceleration sensor 11, the three-axis gyroscope 12 and the magnetometer 13 are all less than 5V, which is convenient for miniaturization and carrying.
在一些实施例中，所述数据处理装置20还包括集成于所述智能手环21中的通讯模块25、SIM卡26以及带有USB2.0充电端口的电源模块27，所述电源模块27用于为数据处理装置20供电，并可以通过充电端口进行充电；SIM卡26用于用户识别；还可以包括缓存模块28，用于数据缓存；所述智能手环21通过所述通讯模块25连接至云端和/或移动端，从而完,报警及信息管理。In some embodiments, the data processing device 20 further includes a communication module 25, a SIM card 26 and a power module 27 with a USB2.0 charging port integrated in the smart bracelet 21, wherein the power module 27 is used to power the data processing device 20 and can be charged through the charging port; the SIM card 26 is used for user identification; and a cache module 28 can also be included for data caching; the smart bracelet 21 The communication module 25 is connected to the cloud and/or mobile terminal to complete alarm and information management.
在一些实施例中，所述数据处理装置20可以采用STM32系列的单片机，内置两个CPU内核，从而实现多任务处理，提高数据处理效率。In some embodiments, the data processing device 20 may use a single-chip microcomputer of the STM32 series with two built-in CPU cores, thereby realizing multi-tasking processing and improving data processing efficiency.
本发明还提供了一种预警人员危险状态的方法，应用于如上所述的系统中，包括如下步骤：The present invention also provides a method for early warning of dangerous status of personnel, which is applied to the system as described above and comprises the following steps:
步骤1：人员穿戴安装有所述传感采集单元10的各个劳动防护设备30，利用各个所述传感采集单元10循环采集人体不同部位的姿态信息；佩戴所述智能手环21并利用集成于所述智能手环21中的心率检测模块22、血氧检测模块23和温度传感器24循环检测人体的生理信息；Step 1: A person wears various labor protection equipment 30 equipped with the sensor collection unit 10, and uses the various sensor collection units 10 to cyclically collect posture information of different parts of the human body; wears the smart bracelet 21 and uses the heart rate detection module 22, blood oxygen detection module 23 and temperature sensor 24 integrated in the smart bracelet 21 to cyclically detect physiological information of the human body;
步骤2：所述智能手环21基于所述姿态信息并结合所述生理信息判断人员状态并基于所述人员状态获取预警信息。Step 2: The smart bracelet 21 determines the status of the person based on the posture information and in combination with the physiological information and obtains warning information based on the status of the person.
采用上述方法可以自动化地监测人员的动作、姿态等信息，减轻人工监测的工作负担，提高工作效率。The above method can automatically monitor the movements, postures and other information of personnel, reduce the workload of manual monitoring and improve work efficiency.
在一些实施例中，请重点参考图2，利用各个所述传感采集单元10循环采集人体不同部位的姿态信息包括：In some embodiments, please focus on FIG. 2 , the posture information of different parts of the human body collected cyclically by each of the sensing collection units 10 includes:
步骤11：采用三轴加速度传感器11循环采集加速度数据、采用三轴陀螺仪12循环采集角速度数据、采用磁力计13循环采集磁场坐标数据，采样频率为100HZ；Step 11: using a three-axis acceleration sensor 11 to cyclically collect acceleration data, using a three-axis gyroscope 12 to cyclically collect angular velocity data, and using a magnetometer 13 to cyclically collect magnetic field coordinate data, the sampling frequency is 100 Hz;
步骤12：通过提取特征量获取加速度值、角速度值以及磁场方向变化值，在一些实施例中，特征量提取计算方法为：加速度值αn＝sqrt(ax^2+ay^2+az^2)，其中ax、ay、az为三个轴向(x、y、z三轴)加速度值的分量，单位为m/s2；角速度值ω＝sqrt(gx^2+gy^2+gz^2)，其中gx、gy、gz为三个轴向角速度值的分量，单位为rad/s。磁场方向＝sqrt(mx^2+my^2+mz^2)，其中mx、my、mz为三个轴向磁场值的分量，单位为Gs。Step 12: Obtain acceleration value, angular velocity value and magnetic field direction change value by extracting feature values. In some embodiments, the feature value extraction calculation method is: acceleration value αn=sqrt(ax^2+ay^2+az^2), where ax, ay, az are the components of three axial (x, y, z) acceleration values, in units of m/s2 ; angular velocity value ω=sqrt(gx^2+gy^2+gz^2), where gx, gy, gz are the components of three axial angular velocity values, in units of rad/s. Magnetic field direction=sqrt(mx^2+my^2+mz^2), where mx, my, mz are the components of three axial magnetic field values, in units of Gs.
步骤13：将获取的加速度值、角速度值以及磁场方向变化值与预先设置的第一阈值进行对比分析，判断人员是否摔倒、严重摔倒或高空跌落。Step 13: Compare and analyze the acquired acceleration value, angular velocity value, and magnetic field direction change value with a preset first threshold value to determine whether the person has fallen, fallen severely, or fallen from a height.
在一些实施例中，所述第一阈值设定为三档：In some embodiments, the first threshold is set to three levels:
对于安装于头戴设备上的所述传感采集单元10，For the sensor collection unit 10 installed on the head mounted device,
第一档(FT1)为：加速度阈值为1.0m/s2，角速度值为5°/s度，磁场方向的变化角度阈值为15度；The first gear (FT1) is: acceleration threshold is 1.0m/s2 , angular velocity value is 5°/s, magnetic field direction is The change angle threshold is 15 degrees;
第二档(FT2)为：加速度阈值为2.5m/s2，角速度值为15°/s度，磁场方向的变化角度阈值为30度；The second gear (FT2) is: the acceleration threshold is 2.5m/s2 , the angular velocity value is 15°/s, and the angle threshold of the magnetic field direction change is 30 degrees;
第三档(FT3)为：加速度阈值为5.0m/s2，角速度值为25°/s度，磁场方向的变化角度阈值为50度；The third gear (FT3) is: the acceleration threshold is 5.0m/s2 , the angular velocity value is 25°/s, and the angle threshold of the magnetic field direction change is 50 degrees;
对于安装于衣物上的所述传感采集单元10，For the sensor collection unit 10 installed on the clothing,
第一档为：加速度阈值为1.5m/s2，角速度阈值为10°/s度，磁场方向的变化角度阈值为15度；The first level is: the acceleration threshold is 1.5m/s2 , the angular velocity threshold is 10°/s, and the angle threshold of the magnetic field direction change is 15 degrees;
第二档为：加速度阈值为3.5m/s2，角速度阈值为20°/s度，磁场方向的变化角度阈值为40度；The second level is: the acceleration threshold is 3.5m/s2 , the angular velocity threshold is 20°/s, and the angle threshold of the magnetic field direction change is 40 degrees;
第三档为：加速度阈值为7.0m/s2，角速度阈值为30°/s度，磁场方向的变化角度阈值为60度；The third level is: the acceleration threshold is 7.0m/s2 , the angular velocity threshold is 30°/s, and the angle threshold of the magnetic field direction change is 60 degrees;
对于安装于鞋子上的所述传感采集单元10，For the sensor collection unit 10 installed on the shoe,
第一档为：加速度阈值为1.96m/s2，角速度阈值为15°/s度，磁场方向的变化角度阈值为20度；The first level is: the acceleration threshold is 1.96m/s2 , the angular velocity threshold is 15°/s, and the angle threshold of the magnetic field direction change is 20 degrees;
第二档为：加速度阈值为4.8m/s2，角速度阈值为25°/s度，磁场方向的变化角度阈值为60度；The second level is: the acceleration threshold is 4.8m/s2 , the angular velocity threshold is 25°/s, and the angle threshold of the magnetic field direction change is 60 degrees;
第三档为：加速度阈值为8.4m/s2，角速度阈值为35°/s度，磁场方向的变化角度阈值为90度。The third level is: the acceleration threshold is 8.4 m/s2 , the angular velocity threshold is 35°/s, and the angle threshold of the magnetic field direction change is 90 degrees.
当阈值达到FT1时通常人有摔倒的迹象，当阈值达到FT2时通常人员已经摔倒在地，当阈值达到FT3时人员可能发生高空坠落或严重翻滚摔倒。When the threshold reaches FT1, the person usually shows signs of falling; when the threshold reaches FT2, the person usually has fallen to the ground; when the threshold reaches FT3, the person may fall from a height or tumble severely.
在一些实施例中，当有两个劳动防护设备30中的所述传感采集单元10提取的特征量达到所述第一阈值的第二档时，判断人员摔倒；当三个劳动防护设备30中的所述传感采集单元10提取的特征量达到所述第一阈值的第三档时，判断人员严重摔倒或高空跌落。In some embodiments, when the feature quantities extracted by the sensor acquisition units 10 in two labor protection devices 30 reach the second level of the first threshold, it is judged that the person has fallen; when the feature quantities extracted by the sensor acquisition units 10 in three labor protection devices 30 reach the third level of the first threshold, it is judged that the person has fallen seriously or fallen from a height.
具体地，单件装备(人体单个部位)达到阈值后不能作为完全摔倒的标准，因为单件装备超过阈值有可能只是做了特定动作，比如坐姿、躺下、蹲下等情况，无法作为完整的参考指标。结合三件装备(人体头部、躯干以及腿部)的传感器阈值能有效的解决这个问题，因为在摔倒时三件劳动防护设备30的加速度值及角速度值变化较大，主要集中在摔倒瞬间产生的冲击加速度上，方向与地面垂直。在摔倒时头部的加速度、躯干的加速度、腿部的加速度是不同的，在迎面摔倒、侧摔、向后摔倒时传感器数值的变化的持续时间的顺序为头部＞躯干＞腿部，落地的顺序为腿部＞躯干＞头部，通过模拟摔倒的状态得出一类关键数据，从开始摔倒到落地的持续时间。假设人员在匀速行走过程中摔倒，从开始摔倒到达接触地面的时间，头部接触地面的阈值为小于3.5s，躯干接触地面的阈值为小于2.5s，腿部接触地面的阈值为小于1.5s，通过摔倒的持续时间能够判断人员是否摔倒，若是大于阈值时间或者并未同时产生传感器数值变化，可以判断人员未摔倒。Specifically, a single piece of equipment (a single part of the human body) reaching the threshold cannot be used as a standard for a complete fall, because a single piece of equipment exceeding the threshold may only be used for a specific action, such as sitting, lying down, squatting, etc., and cannot be used as a complete reference indicator. Combining the sensor thresholds of three pieces of equipment (the human head, torso, and legs) can effectively solve this problem, because the acceleration of the three pieces of labor protection equipment 30 during a fall The value of the degree and angular velocity changes greatly, mainly concentrated in the impact acceleration generated at the moment of falling, and the direction is perpendicular to the ground. When falling, the acceleration of the head, the acceleration of the trunk, and the acceleration of the legs are different. When falling head-on, sideways, and backward, the order of the duration of the change in the sensor value is head>torso>legs, and the order of landing is legs>torso>head. By simulating the state of falling, a key data is obtained, which is the duration from the beginning of falling to landing. Assuming that a person falls while walking at a constant speed, the time from the beginning of falling to the time of touching the ground, the threshold of the head touching the ground is less than 3.5s, the threshold of the trunk touching the ground is less than 2.5s, and the threshold of the leg touching the ground is less than 1.5s. The duration of the fall can be used to determine whether the person has fallen. If it is greater than the threshold time or the sensor value does not change at the same time, it can be determined that the person has not fallen.
三件装备中的传感采集单元10采集的数据可以互相印证，从而提高摔倒判断的准确性，减少误判和漏判。针对不同的场景和需求进行制定，适用范围广，可以满足不同行业和领域的需求。其准确率对比单件装备明显提高，准确率相比单件装备判定能提升至92％。The data collected by the sensor collection unit 10 in the three pieces of equipment can verify each other, thereby improving the accuracy of fall judgment and reducing misjudgments and missed judgments. It is formulated for different scenarios and needs, has a wide range of applications, and can meet the needs of different industries and fields. Its accuracy is significantly improved compared to a single piece of equipment, and the accuracy can be increased to 92% compared to a single piece of equipment.
在一些实施例中，请重点参考图3，利用集成于所述智能手环21中的心率检测模块22、血氧检测模块23和温度传感器24循环检测人体的生理信息的方法包括：In some embodiments, please focus on FIG. 3 , the method of cyclically detecting physiological information of the human body using the heart rate detection module 22, the blood oxygen detection module 23 and the temperature sensor 24 integrated in the smart bracelet 21 includes:
步骤14：采用心率检测模块22循环检测心率值、采用血氧检测模块23循环检测血氧饱和度、采用温度传感器24循环检测体温，采样频率为1HZ；Step 14: The heart rate detection module 22 is used to cyclically detect the heart rate value, the blood oxygen detection module 23 is used to cyclically detect the blood oxygen saturation, and the temperature sensor 24 is used to cyclically detect the body temperature, and the sampling frequency is 1HZ;
步骤15：将检测到的心率值、血氧饱和度以及体温与预先设定好的第二阈值进行对比分析，判断人体生理状态是否正常。Step 15: Compare and analyze the detected heart rate value, blood oxygen saturation and body temperature with the pre-set second threshold value to determine whether the human body's physiological state is normal.
在一些实施例中，所述第二阈值设定为：In some embodiments, the second threshold is set to:
心率阈值设定为60bpm和120bpm，血氧饱和度阈值设定为90％，体温阈值设定为37℃，当检测到的心率值小于60bpm或大于120bpm时，或者血氧饱和度小于90％时，或者体温大于37℃时，判断人体生理状态异常。The heart rate thresholds are set to 60bpm and 120bpm, the blood oxygen saturation threshold is set to 90%, and the body temperature threshold is set to 37°C. When the detected heart rate value is less than 60bpm or greater than 120bpm, or the blood oxygen saturation is less than 90%, or the body temperature is greater than 37°C, the human physiological state is judged to be abnormal.
针对突发心脏病、高温中暑、心率失调、缺氧等情况，提取人员的生理数据作为依据，正常成年人的心率正常范围：60-100bpm，血氧饱和度正常范围：95-100％，由此设定适宜的第二阈值。得到特征量后对设定的第二阈值进行比对，当超过第二阈值时，判断为危险状态并及时进行报警。For sudden heart attack, heat stroke, heart rate disorder, hypoxia and other situations, the physiological data of the personnel is extracted as a basis. The normal range of heart rate for normal adults is 60-100bpm, and the normal range of blood oxygen saturation is 95-100%. Based on this, the appropriate second threshold is set. After the characteristic quantity is obtained, it is compared with the set second threshold. When it exceeds the second threshold, it is judged as a dangerous state and an alarm is issued in time.
需要说明的是：本发明的实现方式可以通过硬件设计和软件编程实现，具体实现方法可以根据实际情况进行调整和优化。其中，硬件设计需要根据不同的劳动防护设备30进行定制化设计，以保证传感器的安装位置和方式符合实际需要。软件编程方面，可以结合实际应用场景，进行算法的调试和优化，以达到可靠、准确的危险状态识别和报警。It should be noted that the implementation of the present invention can be achieved through hardware design and software programming. The implementation method can be adjusted and optimized according to the actual situation. Among them, the hardware design needs to be customized according to different labor protection equipment 30 to ensure that the installation position and method of the sensor meet the actual needs. In terms of software programming, the algorithm can be debugged and optimized in combination with the actual application scenario to achieve reliable and accurate dangerous state identification and alarm.
综上所述，本发明提供的预警人员危险状态的系统及方法，该系统包括多个传感采集单元10和数据处理装置20，所述传感采集单元10安装于劳动防护设备30中，所述劳动防护设备30至少包括头戴设备、衣物和鞋子，所述传感采集单元10包括三轴加速度传感器11、三轴陀螺仪12以及磁力计13，各个所述劳动防护设备30中的三轴加速度传感器11、三轴陀螺仪12以及磁力计13用于采集人体不同部位的姿态信息；所述数据处理装置20包括智能手环21和集成于所述智能手环21中的心率检测模块22、血氧检测模块23和温度传感器24，所述心率检测模块22、血氧检测模块23和温度传感器24用于检测人体的生理信息；各个所述传感采集单元10与所述数据处理装置20信号连接，所述数据处理装置20基于所述姿态信息和生理信息判断人员状态并基于所述人员状态获取预警信息。本发明利用传感采集单元10采集人体不同部位的姿态信息，及时、准确地判断人员是否处于危险状态，从而提高安全性，减少事故发生率。In summary, the system and method for warning of dangerous status of personnel provided by the present invention include multiple sensor acquisition units 10 and a data processing device 20, wherein the sensor acquisition unit 10 is installed in a labor protection device 30, and the labor protection device 30 at least includes a head-mounted device, clothing and shoes, and the sensor acquisition unit 10 includes a three-axis acceleration sensor 11, a three-axis gyroscope 12 and a magnetometer 13, and the three-axis acceleration sensor 11, the three-axis gyroscope 12 and the magnetometer 13 in each of the labor protection devices 30 are used to collect posture information of different parts of the human body; the data processing device 20 includes a smart bracelet 21 and a heart rate detection module 22, a blood oxygen detection module 23 and a temperature sensor 24 integrated in the smart bracelet 21, and the heart rate detection module 22, the blood oxygen detection module 23 and the temperature sensor 24 are used to detect physiological information of the human body; each of the sensor acquisition units 10 is connected to the data processing device 20 by signal, and the data processing device 20 judges the status of the personnel based on the posture information and physiological information and obtains warning information based on the status of the personnel. The present invention utilizes the sensor collection unit 10 to collect posture information of different parts of the human body, and timely and accurately determines whether a person is in a dangerous state, thereby improving safety and reducing the accident rate.
显然，本领域的技术人员可以对发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包括这些改动和变型在内。Obviously, those skilled in the art can make various changes and modifications to the invention without departing from the spirit and scope of the invention. Thus, if these modifications and variations of the invention fall within the scope of the claims of the invention and their equivalents, the invention is also intended to include these modifications and variations.
| Application Number | Priority Date | Filing Date | Title |
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| CN202311048344.5 | 2023-08-18 | ||
| CN202311048344.5ACN116942118A (en) | 2023-08-18 | 2023-08-18 | System and method for early warning of dangerous states of personnel |
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| WO2025039426A1true WO2025039426A1 (en) | 2025-02-27 |
| Application Number | Title | Priority Date | Filing Date |
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| PCT/CN2023/138637PendingWO2025039426A1 (en) | 2023-08-18 | 2023-12-14 | System and method for early warning of danger state of person |
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| WO (1) | WO2025039426A1 (en) |
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| CN120148864A (en)* | 2025-03-11 | 2025-06-13 | 中国人民解放军总医院第二医学中心 | Method and system for judging chronic diseases in the elderly based on data analysis |
| Publication number | Publication date |
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| CN116942118A (en) | 2023-10-27 |
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