基于CAN总线的多排螺旋CT控制系统设计
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摘要
目的针对目前技术条件下的多排螺旋计算机断层成像(computerized tomography,CT)设计一种快速稳定的控制器局域网络(controller area network,CAN)总线通讯控制系统。方法在根据系统需求设计CAN网络后,首先设计CAN硬件接收电路,然后制定CAN网络通讯协议,最后采用基于现场可编程门阵列(Field-Programmable Gate Array,FPGA)和CAN的知识产权逻辑核实现扫描流程的软件设计。结果螺旋扫描实验表明,系统各节点在扫描过程中能够快速稳定地进行通信。结论该系统能够实现对多排螺旋CT扫描流程的控制,并且具有很好的可靠性、实时性和扩展性。
Objective To design a fast and stable control system for multi-slice computerized tomography(CT) based on controller area network(CAN) bus for the current multi-slice helical CT.Methods After designing the communication network according to the system requirements,the hardware and communication protocol were designed.Then the software controlling the scan procedure was designed based on field programmable gate array(FPGA) and the LogiCORETM intellectual property(IP) CAN.Results Helical scanning experiment showed that the system nodes could communicate fast and reliably with each other.Conclusion The system can control the helical scanning procedures.It is a highly stable,real-time system and can be easily extended.
Objective To design a fast and stable control system for multi-slice computerized tomography(CT) based on controller area network(CAN) bus for the current multi-slice helical CT.Methods After designing the communication network according to the system requirements,the hardware and communication protocol were designed.Then the software controlling the scan procedure was designed based on field programmable gate array(FPGA) and the LogiCORETM intellectual property(IP) CAN.Results Helical scanning experiment showed that the system nodes could communicate fast and reliably with each other.Conclusion The system can control the helical scanning procedures.It is a highly stable,real-time system and can be easily extended.
引文
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[5]叶琴瑜,胡天友,何耀.基于CAN总线的光伏电站监控系统[J].仪表技术与传感器,2012,3:76-78.
[6]徐木水,刘金国.基于FPGA的CAN总线通信接口的设计[J].电子设计工程,2010,18(10):96-99.
[7]浣上,邓华,张辉.基于CAN总线的模拟器接口系统设计与实现[J].航天医学与医学工程,2011,24(5):361-365.
[8]徐巍,刘振兴,吴卫.基于CAN总线的智能移动式检测设备设计[J].微计算机信息,2008,32:73-74.
[9]刘丽娜.某型号CT机内部控制系统研究[D].天津:天津大学,2007.
[10]刘宇飞,郭宏.基于Nios软核的CT机扫描系统控制器设计[J].微计算机信息,2006,22(8):146-149.
[11]黄明金,周建斌,李丽.基于SD卡存储器的CAN-BUS信息记录仪设计[J].电子质量,2010,11:41-43.
[12]XILINX.LogiCORE IP AXI Controller Area Network[EB/OL].[2013-05-05].http://www.xilinx.com/support/docu-mentation/ip_documentation/ds798_can.pdf.
[2]周诚,沈云.多层螺旋CT的图像重建原理和技术进展[J].中华放射学杂志,2006,40(9):991-993.
[3]马鑫,郭宏.多层CT用数据采集系统的设计与测试[J].北京航空航天大学学报,2008,34(7):794-797.
[4]洪传荣,唐磊,朱广信,等.基于FPGA的音频存储与播放系统[J].电声技术,2011,35(4):25-27.
[5]叶琴瑜,胡天友,何耀.基于CAN总线的光伏电站监控系统[J].仪表技术与传感器,2012,3:76-78.
[6]徐木水,刘金国.基于FPGA的CAN总线通信接口的设计[J].电子设计工程,2010,18(10):96-99.
[7]浣上,邓华,张辉.基于CAN总线的模拟器接口系统设计与实现[J].航天医学与医学工程,2011,24(5):361-365.
[8]徐巍,刘振兴,吴卫.基于CAN总线的智能移动式检测设备设计[J].微计算机信息,2008,32:73-74.
[9]刘丽娜.某型号CT机内部控制系统研究[D].天津:天津大学,2007.
[10]刘宇飞,郭宏.基于Nios软核的CT机扫描系统控制器设计[J].微计算机信息,2006,22(8):146-149.
[11]黄明金,周建斌,李丽.基于SD卡存储器的CAN-BUS信息记录仪设计[J].电子质量,2010,11:41-43.
[12]XILINX.LogiCORE IP AXI Controller Area Network[EB/OL].[2013-05-05].http://www.xilinx.com/support/docu-mentation/ip_documentation/ds798_can.pdf.