Research and Design on Hydraulic Support Electro-hydraulic Control System Based on 5G Communication
At present,the control system of the fully mechanized mining face in coal mines is mostly based on a single wired link communication.The bandwidth of the wired link is low and the delay is high,which is diffiicult to meet the needs of high-level coal mine safety and efficient mining.At the same time,there are many cables between the controllers,which are dragged across the entire working face,causing huge waste in space,cost and other aspects,and hiding great safety hazards.A very small number of underground fully mechanized mining faces have attempted to build a wireless link consisting of several 5G base stations.The electro-hydraulic control system uses conversion devices at the end or end to transmit system data to the 5G base station,which is responsible for uploading the data.This communication method is both cumbersome and results in unstable communication and high latency due to the single 5G communication link.In order to solve the above problems,relying on the experimental coal mine,research on the internal 5G transformation of the electro-hydraulic control system has been carried out.The integration of 5G modules into the hydraulic support electro-hydraulic controller can achieve full coverage of 5G signals in the fully mechanized mining face while realizing the localization of 5G modules.Research on 5G networking technology and characteristics,design a topology structure for wired wireless network redundancy in the working face,study the integration of Huawei HarmonyOS system and comprehensive mining control system,and use HarmonyOS distributed soft bus and equipment virtualization to complete the application scenario of mining equipment interconnection.Finally,through the testing of the 5G control system in the experimental coal mines 5G private network environment,it was proven that the control system designed in this paper meets the high bandwidth and low latency requirements of the current hydraulic support control system.It can completely remove the inter rack cables between controllers,achieving the goal of saving space,cost,and eliminating safety hazards.The integration of 5G technology with hydraulic support electro-hydraulic control system for the first time,by embedding 5G modules into the hydraulic support controller of coal mine fully mechanized mining face,fills the gap that equipment in the fully mechanized mining face cannot be directly connected to 5G,promotes technological innovation and industrial upgrading of the entire coal industry,and is an important symbol of the coal industry's transformation towards digitization and intelligence.
5G controller5G transformation5G moduleelectro-hydraulic control system
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