The paper introduced CAN （Controller Area Network） bus and CAN2.0 standard, the design of hardware frame-work multi-point communication based on CAN bus, and the software design method. At the same time, the system ...The paper introduced CAN （Controller Area Network） bus and CAN2.0 standard, the design of hardware frame-work multi-point communication based on CAN bus, and the software design method. At the same time, the system normal communication function and stability were shown in the experiment.展开更多
基于连续油管的随钻测量系统采用7芯电缆作为传输媒介。井下仪器数据稳定、快速、有效传输对于随钻测量传输系统有着重要的作用。提出基于冗余结构的井下仪器互连传输总线协议。该总线协议基于CAN2.0总线协议,根据测井工程实际需要,利用...基于连续油管的随钻测量系统采用7芯电缆作为传输媒介。井下仪器数据稳定、快速、有效传输对于随钻测量传输系统有着重要的作用。提出基于冗余结构的井下仪器互连传输总线协议。该总线协议基于CAN2.0总线协议,根据测井工程实际需要,利用FPGA实现了总线控制器,并对操作模式、错误机制和仲裁机制进行改进。该方案利用Quartus II 8.1进行仿真,通过MATLAB将该方案与CAN总线的响应时间进行比较。该系统有较好稳定性和容错性能,符合仪器的高温高压环境和长时间稳定运行性能要求,能够建立高速稳定的数据传输系统。展开更多
文摘The paper introduced CAN （Controller Area Network） bus and CAN2.0 standard, the design of hardware frame-work multi-point communication based on CAN bus, and the software design method. At the same time, the system normal communication function and stability were shown in the experiment.
文摘基于连续油管的随钻测量系统采用7芯电缆作为传输媒介。井下仪器数据稳定、快速、有效传输对于随钻测量传输系统有着重要的作用。提出基于冗余结构的井下仪器互连传输总线协议。该总线协议基于CAN2.0总线协议,根据测井工程实际需要,利用FPGA实现了总线控制器,并对操作模式、错误机制和仲裁机制进行改进。该方案利用Quartus II 8.1进行仿真,通过MATLAB将该方案与CAN总线的响应时间进行比较。该系统有较好稳定性和容错性能,符合仪器的高温高压环境和长时间稳定运行性能要求,能够建立高速稳定的数据传输系统。
