带式残膜打包装置作业工况监测系统设计与试验OA

To address issues such as the lack of baling status monitoring in existing residual film recycling and packaging equipment,a working condition monitoring system for belt-type residual film packaging devices has been designed.This system comprises sensors,an external power supply,a data acquisition module,an on-board monitoring terminal,and a remote database,adhering to the principle of real-time synchronous data acquisition.The system employs an STM32 microprocessor as its data acquisition core,receiving and processing raw signals from the residual film baler's sensors.Utilizing the Qt development platform,a host computer data processing programme and human-machine interface have been designed to achieve efficient,multi-threaded collaborative processing of operational data.Through serial port and TCP communication protocols,it achieves real-time transmission and remote storage of critical operational data including travel speed,bale chamber opening/closing angles and status,and packaging strap line speed.Field dynamic trials validated the system's accuracy,with results indicating:during comprehensive testing,both serial data transmission and TCP network communication functioned normally;The average accuracy rate for travel speed monitoring was 96.22%,with a monitoring accuracy rate of 95.45%for the bale chamber opening/closing angle.The average accuracy rate for strapping line speed monitoring was 97.16%,and the monitoring accuracy rate for the cumulative number of bales produced in the field reached 95.83%.The system operated stably and reliably during field operations,effectively enhancing the driver's perception of the operational status of the residual film baler's belt-type baling device.