单片机控制X线机适时曝光的设计

Design of SCM Timely Exposure of X-ray Machine

目的:设计一套系统,使多台X线机自动运筹,适时曝光,以实现供电电源的共享。方法:根据医院现有条件设计电路,编写算法实现。硬件部分采用51系列单片机,按3台X线机模拟试验,把X线曝光的工作过程模拟简化成1个继电器控制发光二极管的工作过程;软件部分主要应用了中断技术。结果:能够很好地控制多台X线机的曝光,体现了简单的优先级。结论:该系统在不影响X线机曝光参数准确性的前提下,实现了多台X线机的电源共享,在同一时刻只允许1台X线机曝光,并且利用对中断源的查询次序定义了X线机的优先级。能够把多台X线机原本相互独立的曝光过程联系起来,使多台X线机安全、有序、高效地工作。这一点在电源条件稍差的地区体现得尤为突出。

Objective To design a system that is many X-ray machines automatic operation, timely exposure to realize the sharing of power supply. Methods A circuit is designed based on the normal hospital conditions and go with proper control algorithm. The fifty-one series SCM were made use of in the hardware circuits, and validated by X-ray machine simulation tests which simplify the X-ray exposure to the process of relay controlling, which software is based on interrupt mechanism. The program could eftectively control the exposal of many X-ray machines and the priority was indicated by the experiments. Conclusion Under the prerequisite of the system does not affect the exposure parameters of X-ray machine accuracy, the system can realize a number of X-ray machine＇s power-sharing, at the same time allow only a single X-ray exposure and use of the interrupted source. And it can make exposure many original X-ray machines can become closely related with high security, proper order and high performance, which has prominent benefits on areas with bad power and equipment conditions