TAO Tao, MENG Xiang-yin, ZHANG Feng-pei, et al. Design of measurement and control system for gas station based on Ethernet and GPRS redundant communication[J]. 2018, (8): 82-84.
TAO Tao, MENG Xiang-yin, ZHANG Feng-pei, et al. Design of measurement and control system for gas station based on Ethernet and GPRS redundant communication[J]. 2018, (8): 82-84. DOI: 10.13873/j.1000-9787(2018)08-0082-03.
In order to solve the problem of data transmission interruption caused by Ethernet fault of gas station monitoring and control system
a gas station measurement and control system based on Ethernet and GPRS redundant communication is presented. The system consists of three parts
site electrical apparatus
the lower computer and the host computer. The lower computer uses STM32 as main control chip collects data of site electrical apparatus
and send them to the host computer formed by WINCC monitoring software. The host computer transmits instruction to the lower computer according to terminal gas consumption to adjust the outlet pressure value. The data transmission mode is mainly wired by Ethernet
and wireless GPRS as redundancy. The test results show that the system realizes real-time remote monitoring of site electrical apparatus
GPRS can quickly( 100 ms)intervene the transmission process while Ethernet failed