{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T01:00:50Z","timestamp":1760230850681,"version":"build-2065373602"},"reference-count":16,"publisher":"MDPI AG","issue":"16","license":[{"start":{"date-parts":[[2022,8,13]],"date-time":"2022-08-13T00:00:00Z","timestamp":1660348800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Open Fund of State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines","award":["SKLMRDPC20KF12","ZKSYS202103"],"award-info":[{"award-number":["SKLMRDPC20KF12","ZKSYS202103"]}]},{"name":"Open Fund of Anhui Key Laboratory of Mine Intelligent Equipment and Technology","award":["SKLMRDPC20KF12","ZKSYS202103"],"award-info":[{"award-number":["SKLMRDPC20KF12","ZKSYS202103"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>In view of the risk of collision with humans or equipment arising from a lack of protection in the operation process of combined support and anchor equipment on the heading face, this paper designs a safety interlock system for combined support and anchor equipment. Firstly, a mathematical model of hydraulic power system control and a valve control system based on feedforward\u2013feedback optimization were established according to the power demand of the combined support and anchor equipment. Secondly, according to the reliability indexes of the safety interlock system, corresponding sensor, logic control and execution modules were designed. Ultrasonic sensor groups were arranged at the key positions of the combined support and anchor equipment to capture the position information in real time when the equipment was moving. Thus, the pump-valve hydraulic system was controlled through closed-loop feedback. The experimental results show that the safety interlock system of the combined support and anchor equipment can adjust the revolving speed of the permanent magnet synchronous motor (PMSM) in real time according to the distance from the obstacle, so as to control the pump outlet flow, and then perform interlocking safety control of the hydraulic cylinder\u2019s movement speed. The system can effectively prevent damage to the surrounding equipment or personnel arising from equipment malfunction.<\/jats:p>","DOI":"10.3390\/s22166058","type":"journal-article","created":{"date-parts":[[2022,8,15]],"date-time":"2022-08-15T23:44:03Z","timestamp":1660607043000},"page":"6058","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Research on Safety Interlock System Design and Control Experiment of Combined Support and Anchor Equipment"],"prefix":"10.3390","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6904-5499","authenticated-orcid":false,"given":"Pengyu","family":"Wang","sequence":"first","affiliation":[{"name":"State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Huainan 232001, China"}]},{"given":"Guoyong","family":"Su","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Huainan 232001, China"}]},{"given":"Wenlong","family":"Yang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Huainan 232001, China"}]},{"given":"Peng","family":"Jing","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Huainan 232001, China"}]}],"member":"1968","published-online":{"date-parts":[[2022,8,13]]},"reference":[{"key":"ref_1","first-page":"1","article-title":"Current status and trend analysis of readway driving technology and equipment in coal mine","volume":"48","author":"Wang","year":"2020","journal-title":"Coal Sci. 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