复杂场景下无线监测系统的设计  

Design of Wireless Monitoring System in Complex Scene

作　　者：高绍腾 曹自平[1] 张金娅[1] 王岩[2] 

机构地区：[1]南京邮电大学通信与信息工程学院 [2]中国人民解放军73685部队

出　　处：《计算机技术与发展》2017年第12期193-196,共4页Computer Technology and Development

基　　金：教育部新世纪优秀人才支持计划(NCET-13-0871);国家自然科学基金面上项目(61372044);江苏省高校自然科学研究重大项目(14KJA510002)

摘　　要：针对复杂场景下对监测设备的较高要求,设计了一种通用型的无线监测系统。系统中的每一个传感节点基于433MHz ISM射频频段来完成数据的无线收发,并且在节点与节点之间设计了点对多点的自组网方法。收发节点先由CortexM3内核的单片机控制收发,然后把数据传入到嵌有Open Wrt开源系统的网关中,在网关中完成串口数据与Socket数据的相互转换,最后通过WIFI技术把采集数据传入PC端进行监测与反向控制,并在开源视频服务器软件MJPG-streamer的框架结构下实现视频采集。客户端软件采用C#语言进行编写,除了简单的界面显示之外,主要完成网络通信、数据处理、反向控制和监控界面显示等功能,使该系统具有较好的监测功能以及人机互动功能。整个系统的功耗较低、便携性较高、实用性强,可实现多点监测。Aiming at the high demand of the monitoring equipment in the complex scene, an universal wireless monitoring system is de- signed, Each sensor node in the wireless monitoring system completes the transmitting and receiving of data through 433 MHz ISM band radio frequency, and a point-to-multipoint ad hoc network method is used among these nodes. First of all, data in the transceiver node controlled by SCM （ Single Chip Micyoco） with the Cortex-M3 microcontroller as its core is transmitted to the gateway embedded Open- Wrt open-source system. Then, the interconversion between serial data and Socket data is carried out in the gateway. Finally, the collected data is ultimately transmitted to PC terminal for monitoring and reverse control by WIFI technology. In addition,the video capture is actu- alized in the MlPG-streamer framework,an open source video server software. The client software written by C#,in addition to simple interface display, is mainly for network communication, data processing, reverse control and monitoring interface display. Therefore, the system has better functions of monitoring and human-computer interaction, with low-power consumption, strong portability and high practicability, which can realize the multi-point monitoring.

关 键 词：无线传输 自组网 多点监测 网关 视频采集 

分 类 号：TP302[自动化与计算机技术—计算机系统结构]