In this paper,an over-offset load monitoring system for heavy-duty freight trains is designed and tested.The hardware part of the system is composed of PC 104 microprocessor,TC35i wireless GSM mod-ule,LCD screen and 12 V power supply.The software system is divided into four modules:data acquisition,database management,human-computer interaction and overload discrimination.Select a special train for coal transportation,install 4 displacement sensors symmetrically at the bottom of the carriage,and use GSM mod-ule to transmit the collected displacement data to the upper position monitoring system,and then convert the well data into load data,so as to realize the monitoring and early warning of the over-biased load status of the carriage.Using EMD method to extract trend items,the calculated load value is close to the actual value and meets the monitoring accuracy requirements.
关键词
重载货运列车/超偏载状态监测/GSM模块/最小二乘法
Key words
heavy freight train/overload state monitoring/GSM module/least square method
维普
万方数据