基于ZigBee的隧道亮度信号采集系统研究  

Study on the Tunnel Luminance Signal Acquisition System Based on ZigBee

作　　者：廖江[1] 郑伟[1] 李良荣[1] 

机构地区：[1]贵州大学大数据与信息工程学院,贵州贵阳550025

出　　处：《贵州大学学报（自然科学版）》2015年第3期75-78,共4页Journal of Guizhou University:Natural Sciences

基　　金：国家自然科学基金"高速公路隧道节能照明关键技术研究"(61361012)

摘　　要：高速公路隧道照明节能控制系统,要求灯具控制器依据各隧道路段亮度控制指令信息,结合各路段光照度传感器采集的实时亮度信号进行综合运算,产生相应的PWM信号去调整该路段LED隧道灯组的照明亮度,以满足隧道内安全行车的照明需求。其亮度信号的实时采集与可靠性传输非常重要。本文依据Zig Bee的技术特点,设计了一款基于无线传感网络的隧道亮度信号采集系统。各节点传感器采集的实时亮度信号,经CC2530处理过后,将相对较低照度的信号通过无线传输方式,以"接力棒"式的跳转模式传输到协调器,用串口通信方式传输到灯具控制器,实现对路段亮度信号的实时采集及可靠性传输。In the expressway tunnel illumination energy-saving control system,the lamp controller should control the system instruction information based on the luminance in each tunnel. In order to meet the needs of safetydriving in tunnel lighting,the system should generate specific PWM signal to adjust the luminance of the whole tunnel LED units according to the real-time luminance signal collected by light sensors. So,the real-time acquisition and reliable transmission of luminance signal are very important. A tunnel luminance signal acquisition system was proposed based on the technical characteristics of Zigbee. In this system,the sensor nodes are responsible for the acquisition of luminance signal,and then CC2530 was used to process the signal in order to get relatively low intensity of the light. After this,the signal were transmitted to the coordinator by stepwise jump and then to the lamp controller by serial communication method. After those steps,real-time acquisition and reliable transmission of luminance signal were achieved.

关 键 词：亮度信号采集 无线传感网络 可靠性传输 

分 类 号：TN859[电子电信—信息与通信工程]