技术领域technical field
本发明涉及通信领域，尤其涉及一种导航监控中移动目标位置状态智能推送方法。The invention relates to the communication field, in particular to an intelligent push method for the position status of a moving target in navigation monitoring.
背景技术Background technique
随着带有GPS模块终端的普及，地理信息系统应用的深入，位置服务技术被越来越多地使用，为用户的移动搜索、高效物流、指挥监控提供了很好的基础服务。With the popularization of terminals with GPS modules and the deepening of geographic information system applications, location-based service technology is used more and more, providing a good basic service for users' mobile search, efficient logistics, command and monitoring.
导航监控系统包括移动设备终端、服务器和监控终端三部分组成。移动终端负责接受GPS等定位数据获取位置信息并发送至服务器；服务器负责接收移动终端发来的位置信息，进行相关的存储、检索和分析计算；监控终端通过查询应用服务器数据获取移动终端的位置信息。The navigation monitoring system consists of three parts: mobile device terminal, server and monitoring terminal. The mobile terminal is responsible for receiving GPS and other positioning data to obtain location information and send it to the server; the server is responsible for receiving the location information sent by the mobile terminal, and performing related storage, retrieval, analysis and calculation; the monitoring terminal obtains the location information of the mobile terminal by querying the application server data .
监控的实时性是整个系统的重要评价指标，影响实时性主要是两个数据传输的过程：移动终端向服务器发送数据和监控终端从服务器查询数据两个过程。The real-time performance of monitoring is an important evaluation index of the whole system, and the real-time performance is mainly affected by two processes of data transmission: the mobile terminal sends data to the server and the monitoring terminal queries data from the server.
监控终端可以是离线的消息接收程序或设备，也可以是在线的网络应用程序。监控终端按一定的时间间隔从服务器获取移动终端的位置数据，并以一定方式显示给用户。监控终端可以是运行在与服务器高速连接的局域网内，但也可以是通过Internet或移动通讯网络连接的PC、手机或其他智能设备。The monitoring terminal can be an offline message receiving program or device, or an online network application program. The monitoring terminal obtains the location data of the mobile terminal from the server at a certain time interval, and displays it to the user in a certain way. The monitoring terminal can be a local area network running on a high-speed connection with the server, but it can also be a PC, mobile phone or other smart devices connected through the Internet or a mobile communication network.
监控终端查询数据的频率需要在实时性和通讯量之间进行平衡。在监控终端，为了及时更新到最新的位置数据，程序终端需要频繁的刷新数据，会造成较大的服务器访问压力和网络流量；另一方面，在有多个监控的情况下，一次数据刷新时，需要对所有监控对象进行查询，会耗费更多的查询时间。The frequency of data query by monitoring terminals needs to be balanced between real-time and traffic. In the monitoring terminal, in order to update the latest location data in time, the program terminal needs to refresh the data frequently, which will cause greater server access pressure and network traffic; , all monitoring objects need to be queried, which will consume more query time.
发明内容Contents of the invention
（一）要解决的技术问题(1) Technical problems to be solved
本发明要解决的技术问题是：提供一种导航监控中移动目标位置状态智能推送方法，以解决实时性与通信量之间的矛盾，实现监控终端通过“订阅”指定移动终端位置信息，从服务器获得推送信息，提高监控实时性，同时降低服务器的通信次数。The technical problem to be solved by the present invention is to provide a method for intelligently pushing the position status of the moving target in navigation monitoring, so as to solve the contradiction between real-time performance and communication volume, and realize that the monitoring terminal can obtain the location information of the mobile terminal specified by "subscription" from the server. Push information, improve real-time monitoring, and reduce server communication times.
（二）技术方案(2) Technical solutions
为解决上述技术问题，本发明提供了一种导航监控中移动目标位置状态智能推送方法，包括：In order to solve the above technical problems, the present invention provides a method for intelligently pushing the position status of a moving target in navigation monitoring, including:
S1：监控终端向订阅服务器发送订阅请求，以向所述订阅服务器提供订阅的移动终端的列表；S1: The monitoring terminal sends a subscription request to the subscription server, so as to provide the subscription server with a list of subscribed mobile terminals;
S2：所述订阅服务器响应所述监控终端请求，返回订阅成功信息，并建立监控终端内存对象；S2: The subscription server responds to the monitoring terminal request, returns subscription success information, and creates a monitoring terminal memory object;
S3：当所述订阅服务器检测到所述列表中的移动终端存在位置更新时，所述订阅服务器根据所述位置更新判断是否需要将所述移动终端的当前位置推送至所述监控终端。S3: When the subscription server detects that there is a location update for the mobile terminal in the list, the subscription server determines whether to push the current location of the mobile terminal to the monitoring terminal according to the location update.
进一步地，所述步骤S3具体包括：Further, the step S3 specifically includes:
所述订阅服务器判断所述移动终端的第n-1次推送位置是否在预设的安全边界内，所述第n-1次推送位置为所述移动终端当前位置的上次推送位置，若是，则判断所述移动终端的当前位置是否在所述预设的安全边界内，若所述移动终端的当前位置不在所述预设的安全边界内，则将所述移动终端的当前位置推送至所述监控终端。The subscription server judges whether the n-1th push position of the mobile terminal is within a preset security boundary, the n-1th push position is the last push position of the current position of the mobile terminal, and if so, Then judge whether the current location of the mobile terminal is within the preset security boundary, if the current location of the mobile terminal is not within the preset security boundary, push the current location of the mobile terminal to the monitoring terminal.
进一步地，若所述移动终端的第n-1次推送位置不在所述预设的安全边界内，则计算所述移动终端的第n-1次推送位置与当前位置之间的距离，若所述距离大于预设的位移阈值时，则将所述移动终端的当前位置推送至所述监控终端。Further, if the n-1 push position of the mobile terminal is not within the preset safety boundary, calculate the distance between the n-1 push position of the mobile terminal and the current position, if the When the distance is greater than the preset displacement threshold, the current location of the mobile terminal is pushed to the monitoring terminal.
进一步地，若所述距离小于或等于预设的位移阈值时，则计算所述移动终端的第n-2次推送位置至第n-1次推送位置的向量与第n-1次推送位置至所述当前位置的向量之间的夹角，若所述夹角大于预设的方向改变阈值，则将所述移动终端的当前位置推送至所述监控终端。Further, if the distance is less than or equal to the preset displacement threshold, calculate the vector of the n-2 push position to the n-1 push position of the mobile terminal and the n-1 push position to The included angle between the vectors of the current position, if the included angle is greater than a preset direction change threshold, the current position of the mobile terminal is pushed to the monitoring terminal.
进一步地，若所述夹角小于或等于预设的方向改变阈值，则计算所述移动终端位于第n-1次推送位置时的速度与当前位置时的速度之差，若所述速度之差的绝对值大于预设的速度改变阈值，则将所述移动终端的当前位置推送至所述监控终端。Further, if the included angle is less than or equal to the preset direction change threshold, calculate the difference between the speed of the mobile terminal at the n-1th push position and the speed at the current position, if the speed difference If the absolute value of is greater than the preset speed change threshold, the current location of the mobile terminal is pushed to the monitoring terminal.
（三）有益效果(3) Beneficial effects
本发明提供的导航监控中移动目标位置状态智能推送方法，监控终端的位置信息获取方式从定时查询改进为服务端推送，从而实现更少的网络流量，更高的访问效率和更高的实时性，通过逻辑判断来确定是否推送位置数据，而不是简单的时间间隔，从而降低通信量。In the intelligent push method of the position state of the moving target in the navigation monitoring provided by the present invention, the position information acquisition method of the monitoring terminal is improved from the regular query to the server push, thereby achieving less network traffic, higher access efficiency and higher real-time performance. Whether to push location data is determined by logical judgment, rather than a simple time interval, thereby reducing communication traffic.
附图说明Description of drawings
图1是本发明实施方式提供的一种导航监控中移动目标位置状态智能推送方法的流程图；1 is a flowchart of a method for intelligently pushing the position status of a moving object in navigation monitoring provided by an embodiment of the present invention;
图2是本发明实施方式提供的监控终端与订阅服务器之间信息交互示意图；Fig. 2 is a schematic diagram of information interaction between a monitoring terminal and a subscription server provided by an embodiment of the present invention;
图3为本发明实施方式提供的一种监控终端的信息处理流程图；FIG. 3 is a flow chart of information processing of a monitoring terminal provided in an embodiment of the present invention;
图4为本发明实施方式提供的一种订阅服务器的信息处理流程图；FIG. 4 is a flow chart of information processing of a subscription server provided by an embodiment of the present invention;
图5为本发明实施方式提供的一种监控终端与订阅服务器之间信息交互的时序图；FIG. 5 is a sequence diagram of information interaction between a monitoring terminal and a subscription server provided by an embodiment of the present invention;
图6为本发明实施方式提供的另一种导航监控中移动目标位置状态智能推送方法的流程图。FIG. 6 is a flow chart of another intelligent push method for the position status of a moving object in navigation monitoring provided by an embodiment of the present invention.
具体实施方式Detailed ways
下面结合附图和实施例，对本发明的具体实施方式作进一步详细描述。以下实施例用于说明本发明，但不用来限制本发明的范围。The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
图1是本发明实施方式提供的一种导航监控中移动目标位置状态智能推送方法的流程图，包括：Fig. 1 is a flow chart of a method for intelligently pushing the position status of a moving object in navigation monitoring provided by an embodiment of the present invention, including:
S1：监控终端向订阅服务器发送订阅请求，以向所述订阅服务器提供订阅的移动终端的列表；S1: The monitoring terminal sends a subscription request to the subscription server, so as to provide the subscription server with a list of subscribed mobile terminals;
S2：所述订阅服务器响应所述监控终端请求，返回订阅成功信息，并建立监控终端内存对象；S2: The subscription server responds to the monitoring terminal request, returns subscription success information, and creates a monitoring terminal memory object;
S3：当所述订阅服务器检测到所述列表中的移动终端存在位置更新时，所述订阅服务器根据所述位置更新判断是否需要将所述移动终端的当前位置推送至所述监控终端。S3: When the subscription server detects that there is a location update for the mobile terminal in the list, the subscription server determines whether to push the current location of the mobile terminal to the monitoring terminal according to the location update.
其中，所述步骤S3具体包括：Wherein, the step S3 specifically includes:
所述订阅服务器判断所述移动终端的第n-1次推送位置是否在预设的安全边界内，所述第n-1次推送位置为所述移动终端当前位置的上次推送位置，若是，则判断所述移动终端的当前位置是否在所述预设的安全边界内，若所述移动终端的当前位置不在所述预设的安全边界内，则将所述移动终端的当前位置推送至所述监控终端。The subscription server judges whether the n-1th push position of the mobile terminal is within a preset security boundary, the n-1th push position is the last push position of the current position of the mobile terminal, and if so, Then judge whether the current location of the mobile terminal is within the preset security boundary, if the current location of the mobile terminal is not within the preset security boundary, push the current location of the mobile terminal to the monitoring terminal.
其中，若所述移动终端的第n-1次推送位置不在所述预设的安全边界内，则计算所述移动终端的第n-1次推送位置与当前位置之间的距离，若所述距离大于预设的位移阈值时，则将所述移动终端的当前位置推送至所述监控终端。Wherein, if the n-1 push position of the mobile terminal is not within the preset safety boundary, calculate the distance between the n-1 push position of the mobile terminal and the current position, if the When the distance is greater than the preset displacement threshold, the current location of the mobile terminal is pushed to the monitoring terminal.
其中，若所述距离小于或等于预设的位移阈值时，则计算所述移动终端的第n-2次推送位置至第n-1次推送位置的向量与第n-1次推送位置至所述当前位置的向量之间的夹角，若所述夹角大于预设的方向改变阈值，则将所述移动终端的当前位置推送至所述监控终端。Wherein, if the distance is less than or equal to the preset displacement threshold, calculate the vector from the n-2 push position to the n-1 push position of the mobile terminal and the n-1 push position to the The included angle between the vectors of the current position, if the included angle is greater than a preset direction change threshold, the current position of the mobile terminal is pushed to the monitoring terminal.
其中，若所述夹角小于或等于预设的方向改变阈值，则计算所述移动终端位于第n-1次推送位置时的速度与当前位置时的速度之差，若所述速度之差的绝对值大于预设的速度改变阈值，则将所述移动终端的当前位置推送至所述监控终端。Wherein, if the included angle is less than or equal to the preset direction change threshold, then calculate the difference between the speed of the mobile terminal at the n-1th pushing position and the speed at the current position, if the speed difference is If the absolute value is greater than the preset speed change threshold, the current location of the mobile terminal is pushed to the monitoring terminal.
本发明通过使用订阅机制替代传统的定时查询，采用规则判别来过滤对用户无用的位置变化信息，并推送到监控终端，参见图2，图2是本发明实施方式提供的监控终端与订阅服务器之间信息交互示意图。The present invention replaces the traditional timing query with a subscription mechanism, uses rule discrimination to filter location change information that is useless to the user, and pushes it to the monitoring terminal. Schematic diagram of information exchange.
具体地，监控终端与位置订阅服务通过订阅/发布方式来即时获得位置更新信息，具体过程为：Specifically, the monitoring terminal and the location subscription service obtain location update information in real time through subscription/publishing. The specific process is:
（1）监控终端向订阅服务器发送订阅请求，提供订阅移动终端列表；(1) The monitoring terminal sends a subscription request to the subscription server and provides a list of subscribed mobile terminals;
（2）订阅服务器响应监控终端请求，返回订阅成功信息，在服务器端建立监控终端内存对象，并将订阅终端列表与订阅服务器中的移动终端对象进行关联；(2) The subscription server responds to the monitoring terminal request, returns subscription success information, creates a monitoring terminal memory object on the server side, and associates the subscription terminal list with the mobile terminal object in the subscription server;
（3）当订阅服务器中的移动终端位置信息有了更新以后，服务器判断此位置更新是否需要通知监控终端，如符合判断条件则将移动终端的位置信息推送至监控终端；(3) When the location information of the mobile terminal in the subscription server is updated, the server judges whether the location update needs to be notified to the monitoring terminal, and if the judgment condition is met, the location information of the mobile terminal is pushed to the monitoring terminal;
（4）监控终端退出时，发送取消订阅请求；(4) When the monitoring terminal exits, send an unsubscribe request;
（5）服务器收到取消订阅请求，则应用程序与订阅服务器之间数据连接断开，就注销监控终端对象。(5) When the server receives the unsubscribe request, the data connection between the application program and the subscription server is disconnected, and the monitoring terminal object is canceled.
其中，监控终端的信息处理流程可以如图3所示，订阅服务器的信息处理流程如图4所示，监控终端与订阅服务器之间信息交互的时序可以如图5所示。The information processing flow of the monitoring terminal may be shown in FIG. 3 , the information processing flow of the subscription server may be shown in FIG. 4 , and the sequence of information interaction between the monitoring terminal and the subscription server may be shown in FIG. 5 .
具体地，位置推送条件判定可以包括以下4个条件，并通过图6所示的流程判断是否推送位置：Specifically, the location push condition determination may include the following four conditions, and judge whether to push the location through the process shown in Figure 6:
1、基于“安全边界”判定，具体可以分为两种情况：当监控对象上一次推送位置位于一个建筑多边形内时，当前建筑多边形的边界就是“安全边界”，当监控对象位置移到安全边界之外，判定为满足推送要求；此外，当监控对象沿预设的一条线移动时，将与该线距离小于L的区域设为缓冲区，缓冲区边界即为“安全边界”，当监控对象位置不在安全边界内时，判定为满足推送要求。1. Based on the judgment of "safety boundary", it can be divided into two situations: when the last push position of the monitoring object is within a building polygon, the boundary of the current building polygon is the "safety boundary", when the position of the monitoring object moves to the safety boundary In addition, it is determined that the push requirements are met; in addition, when the monitored object moves along a preset line, the area with a distance less than L from the line is set as a buffer zone, and the boundary of the buffer zone is the "safety boundary". When the location is not within the security boundary, it is determined that the push requirement is met.
2、根据位移判定，设定位移阈值为d，当上一次（第n-1次）推送位置与当前位置之间的空间距离大于d时，即判定为满足推送条件，此外，d可以是一个变化量，设初始值为d0，d=k*d0/v，k为系数，v为当前速度；2. According to the displacement judgment, set the displacement threshold as d. When the spatial distance between the last (n-1th) push position and the current position is greater than d, it is determined that the push condition is satisfied. In addition, d can be a Change amount, set the initial value as d0 , d=k*d0 /v , k is the coefficient, v is the current speed;
3、根据移动方向判定，设定方向改变阈值为a，计算第n-2次推送位置至第n-1次推送位置的向量与第n-1次推送位置至当前位置的向量之间的夹角b，如果b大于a，即判定为满足推送要求；3. According to the judgment of the moving direction, set the direction change threshold as a, and calculate the distance between the vector from the n-2 push position to the n-1 push position and the vector from the n-1 push position to the current position Angle b, if b is greater than a, it is determined to meet the push requirements;
4、根据速度变化判定，设定速度改变阈值为M，当监控对象当前速度与在上一次推送位置时的速度之差的绝对值大于M，即判定为满足推送要求，若不满足条件，则不推送当前位置；4. According to the speed change judgment, the speed change threshold is set to M. When the absolute value of the difference between the current speed of the monitored object and the speed at the last push position is greater than M, it is determined that the push requirements are met. If the conditions are not met, then Do not push the current location;
其中，在上述的实施方式中，系统中的订阅和推送方式可以是在线也可以是离线的。离线方式以短消息和电子邮件为主。监控终端通过向服务器发送订阅短信或邮件来订阅要监控的移动目标，服务器也以短消息或者邮件的方式来推送移动目标的位置状态，监控终端消息显示方式由短信接收或邮件接收程序决定。此外，监控终端可以通过安装专用监控程序来实现在线的消息订阅和推送。监控程序在订阅移动目标位置信息时，与服务器之间建立双向的通讯连接，收到服务器推送信息后，监控程序解析出位置坐标，将地图中心移动到该位置，同时以闪烁图标标记，监控程序从解析出的移动对象编号从本地数据库或在线查询对象信息，以气泡方式对该移动对象进行标会。如果监控程序处于后台运行，还需要输出APP提示消息。Wherein, in the above embodiments, the subscription and push methods in the system can be online or offline. Offline methods are mainly short messages and emails. The monitoring terminal subscribes to the mobile target to be monitored by sending subscription text messages or emails to the server, and the server also pushes the location status of the mobile target in the form of short messages or emails. The monitoring terminal message display method is determined by the SMS receiving or email receiving program. In addition, the monitoring terminal can realize online message subscription and push by installing a special monitoring program. When the monitoring program subscribes to the location information of the mobile target, it establishes a two-way communication connection with the server. After receiving the push information from the server, the monitoring program analyzes the location coordinates, moves the center of the map to this position, and marks it with a flashing icon. The monitoring program From the parsed mobile object number, the object information is queried from the local database or online, and the mobile object is marked in the form of bubbles. If the monitoring program is running in the background, it is also necessary to output an APP prompt message.
本发明实施方式提供的导航监控中移动目标位置状态智能推送方法，监控终端的位置信息获取方式从定时查询改进为服务端推送，从而实现更少的网络流量，更高的访问效率和更高的实时性，通过逻辑判断来确定是否推送位置数据，而不是简单的时间间隔，从而降低通信量。此外，在监控对象非匀速移动的情况下，通过位移、速度、方向来判定是否提交位置，可以过滤大量对于监控位置变化无意义的数据推送，同时也提高了有用位置信息的敏感度。In the intelligent push method of the position status of the moving target in the navigation monitoring provided by the embodiment of the present invention, the position information acquisition method of the monitoring terminal is improved from regular query to server push, thereby achieving less network traffic, higher access efficiency and higher real-time Sex, through logical judgment to determine whether to push location data, rather than a simple time interval, thereby reducing communication traffic. In addition, when the monitored object moves at a non-uniform speed, the displacement, speed, and direction are used to determine whether to submit the location, which can filter a large number of data pushes that are meaningless to the monitoring location change, and also improve the sensitivity of useful location information.
以上实施方式仅用于说明本发明，而并非对本发明的限制，有关技术领域的普通技术人员，在不脱离本发明的精神和范围的情况下，还可以做出各种变化和变型，因此所有等同的技术方案也属于本发明的范畴，本发明的专利保护范围应由权利要求限定。The above embodiments are only used to illustrate the present invention, but not to limit the present invention. Those of ordinary skill in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all Equivalent technical solutions also belong to the category of the present invention, and the scope of patent protection of the present invention should be defined by the claims.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410122760.XACN103916470B (en) | 2014-03-28 | 2014-03-28 | Moving target position condition intelligent method for pushing in navigation monitoring |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410122760.XACN103916470B (en) | 2014-03-28 | 2014-03-28 | Moving target position condition intelligent method for pushing in navigation monitoring |
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| CN103916470Atrue CN103916470A (en) | 2014-07-09 |
| CN103916470B CN103916470B (en) | 2017-06-30 |
| Application Number | Title | Priority Date | Filing Date |
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| CN201410122760.XAActiveCN103916470B (en) | 2014-03-28 | 2014-03-28 | Moving target position condition intelligent method for pushing in navigation monitoring |
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