西门子加速器多叶光栅电机寿命预警系统设计

Design of MLC Motor Life Warning System for Siemens Accelerator

目的设计一种西门子加速器多叶光栅(Multi-Leaf Collimator,MLC)电机寿命预警系统,实现电机寿命预警值报警。方法采用VC++程序分别读取计划系统中导出的计划文件、网络传输系统中的日志文件。对82叶光栅每天的行程进行计算,并从更换之日起开始累加。统计10个电机的寿命取平均值作为平均寿命,累加行程与平均寿命的比值为寿命进度,每天晚上24时系统对寿命进度进行更新。结果该预警系统实现了每天对西门子加速器MLC电机寿命进度实时更新,若寿命进度大于90%,则进行报警。结论预警系统的使用减少了设备维修工程师的工作量,提高了机器开机率,增加了病人治疗效果。

Objective To design a warning system for Siemens accelerator multi-leaf Collimator(MLC)motor life to realize the early warning when the motor life reaches the warning value.Methods VC++program was used to read the plan file exported in the plan system and the log file in the network transmission system,respectively.The daily travel of 82-leave collimators was calculated and accumulated from the date of replacement.The average life of 10 motors was calculated as the average life,and the ratio of accumulative travel to average life was life progress.The life schedule was updated at 24 PM every night.Results The real-time update of MLC motor life schedule of Siemens accelerator was realized every day by the warning system.If the life progress was more than 90%,the warning system would give an alarm.Conclusion The use of early warning system reduces the workload of equipment maintenance engineers,improves the opening rate of machines,and increases the therapeutic effect of patients.