基于可编程逻辑控制器和分布式控制系统的医用电子直线加速器控制系统设计  

Research on the design of PLC and DCS-based medical linear accelerator system

作　　者：杜锡九 刘德康 沈立人 陈建锋 

机构地区：[1]广东中能加速器科技有限公司,广东东莞523808

出　　处：《中国医学装备》2016年第1期16-18,共3页China Medical Equipment

基　　金：广东省引进创新科研团队计划(201001D0104732255)"电子加速器关键核心技术研发及产业化"

摘　　要：目的:设计医用电子直线加速器核心控制系统,用来严密控制协调各子系统的运行,以确保对治疗对象进行准确可靠的放射治疗。方法:采用基于可编程逻辑控制器(PLC)和分布式控制系统(DCS)架构的技术方案,根据医用电子直线加速器的控制系统需求特点和系统规模进行设计。结果:控制系统不仅可完成所承担的照射控制、安全联锁控制、运动控制、人机操作界面以及数据记录与校验等控制任务,并能够确保系统能稳定可靠运行。PLC控制器具备可靠性高、结构紧凑及组态方便的诸多优势,而分布式控制系统使计算机控制系统架构更为先进。结论:该解决方案不仅很好地满足了医用电子直线加速器的控制系统需求,并且具备研制周期短、修改与调试方便等优势。Objective： To design medical linear accelerator（Linac） control system which can monitor and control the sub systems to ensure an accurate and reliable radiation therapy. Methods： Using the technical protocol of PLC and DCS-based medical linear accelerator system, combined with requirement and system scale of Linac for the design. Results： The control system can not only complete the tasks of irradiating controlling, safety interlock controlling, motion controlling, human operating interface, and data recording and verification, etc, but also ensure a stable and reliable running of the system. PLC controllers have various advantages of high reliable and compact structure and easy configuration, and DCS technology makes control system architecture more progressive. Conclusion： The solution not only satisfy the control system requirements of medical linear accelerator, but also have advantages in rapid development and convenient modifying and debugging.

关 键 词：加速器 分布式控制系统 可编程逻辑控制器 

分 类 号：R812[医药卫生—放射医学]