基于GPS的室外放射源信息监控系统设计

Design of outdoor radioactive source information monitoring system based on GPS

针对室外放射源人工监控方式不科学、监控参数单一等问题,研究一套基于GPS的室外放射源信息监控系统,实时在线监测室外放射源信息,结合GSM/GPRS技术、剂量检测技术和SQL Server数据库技术等,建立以位置信息、剂量信息、完整性信息和温度信息为检测量,C/S体系架构的监控系统,提出滑动平均测量法、设计FIR滤波算法和IIR+FIR滤波算法等分别对位置、剂量和温度等前端信号进行处理,并设计数据可靠性传输机制,提高系统准确性、稳定性和可靠性。实验结果表明:系统能实时准确监测放射源现场状态,现场数据处理算法可有效减少传感数据误差。

Aiming at the problem of no-science and single monitoring parameter of outdoor artificial radioactive sources monitoring, an outdoor radioactive source information monitoring system based on GPS is researched for real-time and online monitoring of the radioactive sources information. Combined with GSM/GPRS technology, radioactive detection technology and SQL server database teehnology, the monitoring system with C/S architecture is established, in which the position information, dosage information, integrity information and temperature information are for the detection of the amount. In order to improve measurement system reliability and real-time effectively, FIR filter and IIR ＋ FIR filter is designed for processing front-end signal such as position, dose and temperature. The design of the reliable mechanism of data transmission includes proposing a circular buffer mechanism in order to avoid the congestion and loss of front-end data. The results show that the system can accurately monitor the real-time status of radioaetive site, and the field data processing algorithm can effectively reduce the error of sensing data.