The CAN bus transmission characteristics of packet are mainly analyzed, and transport protocol for the sub-station in the coal mine is designed.
重点分析了CAN总线传输报文的特点，设计了适用于井下分站的传输协议。
Field application reveals the high anti-interference ability, high precision measurement, low error rate communications, and fast response of the sub-station.
现场应用表明，该子站具有抗扰能力强，测量精度高、通讯误码率低、响应速度快等特点。
Applying the bi-processor and bi-port RAM, the paper designs a new type intelligent sub-station on basis of the sub-station of the current monitoring sys-tem for the tramroad conveyance.
运用双处理器和双端口RAM，在现有轨道运输监控系统分站的基础上设计了新型智能分站。
The underground test and application of this sub-station prove a good result.
经井下测试与应用，取得了较好的效果。
The underground test and application of this sub-station prove a good result.
经井下测试与应用，取得了较好的效果。
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