徐晓天,张红娟,靳宝全.矿用多总线数据通信分站系统设计[J].电测与仪表,2022,59(10):168-173. xvxiaotian,zhanghongjuan,jinbaoquan.Design of Mine Multi-bus Data Communication Substation System[J].Electrical Measurement & Instrumentation,2022,59(10):168-173.
矿用多总线数据通信分站系统设计
Design of Mine Multi-bus Data Communication Substation System
Aiming at the problems of various bus communication schemes in coal mine data acquisition and transmission, such as low transmission efficiency, poor accuracy, and difficulty in overall management, a multi-bus fusion communication scheme was proposed, and system software and hardware design was performed. The system uses RS485 bus to connect the sensing equipment to complete the data collection and transmission, and CAN bus to the underground substations to achieve data sharing. ModbusTCP bus is used to communicate with the underground and underground information sites to respond to the underground data upload, forming a communication three-level network link. The system uses the STM32 control unit based on the ARM core to coordinate data transmission between the three types of buses, and freely convert different communication protocols to achieve transparent transmission of data throughout the network. The test results show that the transmission delay is controlled within 13ms, and the system real-time performance and reliability are effectively improved.
