矿用激光雷达传感器无线供电及电机续流设计与测试  

Design and test of wireless power supply and motor freewheeling for mining LiDAR sensor

作　　者：郭长娜 GUO Changna(China Coal Technology&Engineering Group Fushun Testing Center Co Ltd,Fushun 113122,China;China Coal Technology&Engineering Group Shenyang Reaearch Institute,Fushun 113122,China;State Key Laboratory of Coal Mine Safety Technology,Fushun 113122,China)

机构地区：[1]抚顺中煤科工检测中心有限公司,辽宁抚顺113122 [2]中煤科工集团沈阳研究院有限公司,辽宁抚顺113122 [3]煤矿安全技术国家重点实验室,辽宁抚顺113122

出　　处：《传感器与微系统》2024年第8期72-75,共4页Transducer and Microsystem Technologies

基　　金：国家重点研发计划项目(2023YFB3211001)。

摘　　要：矿用激光雷达(LiDAR)传感器工作过程需进行360°扫描,其主板与旋转部位激光器间的供电问题为激光雷达传感器设计重点,同时旋转部分电机中线圈作为典型储能元件,在运行过程尤其是正反转突变瞬间,其反向电动势冲击带来的能量在煤矿井下爆炸性气体环境中存在引爆危险。基于360°旋转的激光雷达传感器设计了无线供电结构方式,并研究开发了并联电阻续流方式,解决了电机因续流电路输出功率减小无法正常旋转的问题,同时本文对无线供电及续流电路按照GB/T 3836.4标准要求提出了对应的试验方法,并对试验结果进行分析,最终结果表明,设计电路结构满足本质安全要求。The working process of mining LiDAR sensor requires 360°scanning,the power supply issue between the motherboard and the rotating laser is a key focus in the design of LiDAR sensors,simultaneously,rotating the coils in the motor as typical energy storage components,during operation,especially at the moment of sudden changes in forward and reverse directions,the energy brought by its reverse electromotive force impact poses a risk of detonation in explosive gas environments underground coal mines.A wireless power supply structure based on a 360°rotation LiDAR sensor is designed,and a parallel resistor freewheeling method is researched and developed,the problem of the motor being unable to rotate normally due to the reduced output power of the freewheeling circuit is solved,at the same time,corresponding test methods for wireless power supply and freewheeling circuits in accordance with the requirements of GB/T 3836.4 standard is proposed,the experimental results are analyzed.Final result indicates that the designed circuit structure meets the intrinsic safety requirements.

关 键 词：激光雷达 储能元件 反向电动势 无线供电 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] TD684[自动化与计算机技术—控制科学与工程]