散射式低能见度无线预警检测仪设计  

Design of Scattering Low Visibility Wireless Warning Detector

作　　者：宋毅[1] 杨裕翠[1] 

机构地区：[1]淮阴师范学院物理与电子电气工程学院,江苏淮安223001

出　　处：《测控技术》2013年第10期55-58,共4页Measurement & Control Technology

摘　　要：从实用性出发,借鉴目前相对成熟的能见度检测仪器,进行技术改进和应用创新,设计了一种符合我国国情的低成本、低功耗、扩展兼容性好、能够灵活接入到现有智能交通监测网络的低能见度预警检测前端设备。研究的检测仪以测量前向散射光强度为能见度检测原理,采用微弱信号检测技术对散射光转化的微弱电信号进行调理,采用基于Cortex-M3及RTOS设计的嵌入式控制系统实现数据读取、处理及系统管理,采用现代通信技术实现预警数据的有线传输、短距离RF无线数传、远程公网数据传输3种输出模式。该检测仪具有良好的社会效益和广阔的产业化前景。Starting from the practicability, learning from technical improvement and innovation of the current relatively mature visibility detection equipment, a kind of front end equipment of low visibility warning and de- tection is designed with China＇s national conditions, which has low cost, low power consumption, good expand compatibility, flexible access to the existing intelligent traffic monitoring network. The scattering light intensity is measured as visibility detection principle, the weak signal detection technique is adopted to condition the weak electrical signal that is transformed by scattering light. Embedded control system based on Cortex-M3 and RTOS is used to realize the data reading, processing and system management. Modem communication technolo- gy is used to realize three output modes for early warning data wire transmission, the short distance RF wireless data transmission and remote network data transmission. Results show that the designed detector has good social benefit and wide industrialization prospects.

关 键 词：CORTEX-M3 散射式 SI4432 RTOS 

分 类 号：TP23[自动化与计算机技术—检测技术与自动化装置]