基于压电加速度传感器的井下机车定位系统  

The Locomotive Position System in Coal Pit Based on the Piezoelectric Accelerometer

作　　者：高迎慧[1] 孙海淇[1] 杨義葵[1] 

机构地区：[1]辽宁工程技术大学电气与控制工程学院,辽宁葫芦岛125105

出　　处：《压电与声光》2012年第5期782-784,787,共4页Piezoelectrics & Acoustooptics

基　　金：中国博士后科学基金资助项目(20090461470)

摘　　要：我国煤矿井下电机车铁路运输系统不能及时准确反映电机车运行速度和行车位置,将压电加速度传感器引入到井下机车定位系统中,通过采集电机车加速度值积分求解得出其速度和位置,实现定位功能。分析了压电式加速度传感器的基本原理;阐述了基于压电式加速度计的井下机车定位系统总体方案;完成了系统的软件设计并对加速度传感器温度漂移和随机误差进行了标定修正。最后通过模拟实验证明了其可靠性。Most of the current railway transportation system in the coal pit in China did not equip with the electric locomotive position system,thus the running speed and the location of the electric locomotive is not able to be accurately figured out.In this work,the piezoelectric accelerometer has been introduced into the locomotive position system in the coal pit to realize the positioning function through integrating over the collected acceleration value of the electric locomotive and solving out the speed and position.The basic principle of the piezoelectric acceleration sensor has been analyzed.The scheme of the locomotive position system in coal pit based on the piezoelectric accelerometer has been discussed.The software design of the system has been completed and the temperature drift and random errors of the piezoelectric accelerometer are calibrated and corrected.The piezoelectric acceleration sensor has been verified by the simulation experiment.

关 键 词：压电加速度传感器 电荷放大器 机车定位 温度补偿 数字信号处理器(DSP) 

分 类 号：TD52[矿业工程—矿山机电]