放射源远程遥控搜寻系统的设计及实验验证

Design and Experiment Verification of a Remote Search System for Lost Radiation Source

设计了由辐射剂量仪、遥控机器人和手机或信号无线发送接收器等构成的远程遥控搜寻丢失放射源的机器人系统。采取两种方法(手机QQ视频和信号无线发送与接收)实现剂量仪数据和机器人坐标位置的远程无线实时获取。根据放射源辐射场分布规律,建立了辐射场剂量率分布数据库;设计了简单易行的机器人行走路线,快速获取9点剂量率数据;通过比较数据之间的关系和查询数据库确定放射源的具体位置,从而快速找到丢失的放射源,大大降低放射源对搜寻人员的辐射伤害,遥控距离达30 m,辐射剂量降低900倍。

A robot system was designed for searching the lost radiation source. It is consist of radiation dose re- corder, robot, and mobile phone or signal wireless receiver and acceptor. Two methods were used to acquire the data of dose rate and robot position in real time. One is using QQ video; another is using signal wireless trans- mitter and receiver. A simple route was designed for robot to obtain the distribution of radiation dose rate fast. The position of the lost radiation source was quickly fixed by comparing the distribution with the database built in advance and radiation harm to seeking persons was greatly reduced. The dose decrease by 900 times if the re- mote control distance is 30 meters.