Measurement And Control System Design, Based On The Remote Control Mode Of The Ore Shipped Truck

The development of mining has direct impact on the industry and national economy.And the realization of remote control mining through improvement on the automation and intelligence of mining equipments is good for improving mining efficiency and accelerating the realization of Digital Mine.As an important equipment in mining, trackless vehicle takes on the burdensome transportation work, thus studying the remote control system of trackless vehicle has great significancy.The contents of this dissertation are as follows:Through summarizing the characteristics of the remote control system of construction vehicle,the demands in real-time control and in system reliability are presented,and correlative solutions are analyzed from communication link and framework of on-vehicle control system.To meet the maintenance requirement of vehicle,failure diagnosis and its realization methods are introduced.For environment monitoring,certain methods,such as video surveillance and ultrasonic detection,are expounded.Based on former analysis,both software and haredware of the remote control mine truck's on-vehicle system are designed.The system includes the host PC which acts as an on-line failure diagnosis subsystem with failure diagnosis software and supervisory sontrol software,the slave controller which does its wireless communication with remote control platform by digital radio,and remote modules which constitutes the truck control net in combination with the slave controller.As the DeviceNet nodes,the remote modules are implemented for sensor signal acquisition and electromagnetic valve control.The subsystem of ultrasonic obstacle detection is designed and tested as part of on-vehicle system.