“The hydraulic support can also ‘walk’ out on its own！Innovative design of wireless remote control hydraulic support，Really solves the problem of limited vision for scaffolders during retracement、Inconvenient operation problem，Our withdrawal of the hydraulic support is safer！" Liu Kefeng, a bracket worker from the installation team of Hanjiawan Coal Company, said excitedly。
Recently，The wireless remote control hydraulic support device independently innovatively designed by the installation team of Hanjiawan Coal Company was officially put into use at the retreat site，Scaffolders only use handheld remote control buttons for easy control，You can remotely lower the hydraulic support、Push away、Move M88 gamethe rack、All functions including side protection，In realizing the intelligent removal technology of “no one is safe”，Took a solid step。
In recent years，With the final mining of the fully mechanized mining face、Exploration and application of retracement process and top control technology，The team has basically achieved the set goal of safe and rapid retracement。When retracting the side frame on the working surface，Due to the retracement of the top plate cycle of the old empty area，It will bring certain risks to the personal safety of scaffold workers，It also increases the difficulty of the homework，Not conducive to on-site safety management。
For this，The party branch of this team gives full play to the wisdom and strength of the project research team，By company instructor Feng Xiaocheng、Senior technician Ou Qigang takes the lead，Focus on the research on communication protocol fusion technology of 4-2 coal hydraulic support electromagnetic pilot valve，After theoretical demonstration and multiple tests，Manual operation mode in front of the rack，Changed to "parse code" to integrate remote control method，Effectively avoids the potential safety hazard of the scaffolder squatting M88 appin front of the scaffold to operate manually。
The improvement of this control technology is mainly divided into two categories: hardware and software: customizing special circuit boards in terms of hardware，CAN communication method forming a bracket control system、RS485/RS232 all the way、Communication method of three-way relay；In software，Data analysis of the electromagnetic pilot valve and electro-hydraulic control communication protocol of the hydraulic support，The written code will then be imported into the control system，After the receiver collects the control data sent by the remote control，Output to hydraulic support solenoid pilot valve driver，Thus achieving the effect of remote control by driving the solenoid pilot valve。
“The application of hydraulic technology through wireless control，When retracing the working surface, you no longer have to worry about the threat of periodic pressure from the top of the old empty area of the working surface，The efficiency of stent retrieval and the personal protection of stent workers have been improved，The guys are more motivated。" said Yang Ming, deputy captain of the installation team。（Yang Heng）