移动DR无线遥控延时曝光控制器的设计与研制

Design and Development of Mobile DR Wireless Remote Control Delay Exposure Controller

目的本文设计一款具备无线遥控曝光和自动延时曝光的双模式移动DR曝光控制器,取代移动DR手闸功能,以避免X射线对操作员造成电离辐射危害。方法以STC89C52单片机为主控芯片,以无线射频遥控模块和单片机定时器为触发方式,通过单片机控制继电器通断,取代手闸曝光操作,并以摄像系统实时辅助监控,以实现无线远程可视化曝光操作。结果不同距离下控制器响应情况的成功率均≥95%;控制器接上移动DR后,不同模式下分别追踪300例次的临床使用情况,其成功率≥98%。结论该控制器可实现移动DR远距离无线曝光操作,使操作员有效避免正面近距离曝光操作,从而使操作员减少X射线电离辐射危害。

Objective To design a dual-mode mobile DR exposure controller with wireless remote control exposure and automatic time-delay exposure to replace the mobile DR hand brake function to protect the operator from ionizing radiation hazard caused by X-rays.Methods The STC89C52 single-chip microcomputer was used as the main control chip,the wireless radio frequency remote control module and the single-chip timer were used as the trigger mode,and the on-off relay was controlled by the singlechip microcomputer to replace the hand brake exposure operation,and the camera system was used for real-time auxiliary monitoring to realize the wireless remote visual exposure operation.Results Through testing,the success rate of the controller response at different distances was≥95%.After the controller was connected to the mobile DR,300 cases of clinical use were tracked in different modes,and the success rate was≥98%.Conclusion The controller can realize the mobile DR remote wireless exposure operation,so that the operator can effectively avoid the frontal short-distance exposure operation,and reduce harm of X-ray ionizing radiation for the operator.