Control system and method for precise positioning of mobile discharging car

Abstract

The invention discloses a control system and method for precise positioning of a mobile discharging car. The system comprises a digital laser diastimeter, a vector control frequency converter, a programmable controller and a man-machine interface; the digital laser diastimeter measures the actual distance feedback value of the discharging car and the target position in real time, the vector control frequency converter is used for driving a transmission motor of the mobile discharging car, and the man-machine interface is formed in a control chamber and used for transmitting an unloading command target value; according to the target value and the actual distance feedback value, the programmable controller positions a model and conducts calculation, then, a calculation result is transmittedto the vector control frequency converter in a communication mode, and the vector control frequency converter drives the motor to achieve precise positioning. According to the control system and method for precise positioning of the mobile discharging car, bit number display and precise positioning control functions of the mobile discharging car can be achieved, and free switching between an automatic positioning mode and a manual operation mode is achieved; few fault is generated, little interference is generated, no accumulated error or abrasion error exists, and the positioning precision can reach up to the range of minus one to one millimeter.

Description

technical field [0001] The invention belongs to metallurgical unloading positioning technology, in particular to a control system and a control method for precise positioning of a mobile unloading vehicle. Background technique [0002] At present, in the process control of silo feeding, the positioning accuracy of the unloading car is a relatively important process quantity. The stable and accurate stop positioning position of the unloading car is especially important for the feeding of the silo. After the unloading truck stops in place, it will automatically release the unloading device and enter the entrance of the silo. After it goes down in place, it will open the unloading valve to discharge the material into the silo. Since the position of entering each silo is fixed, if the unloading vehicle stops and the positioning control is unstable, it may cause the unloading device to fail to enter the silo entrance, or collide with the silo wall and damage the equipment, result...

AI Technical Summary

Problems solved by technology

[0004] Purpose of the invention: The purpose of the present invention is to solve the problem that the positioning accuracy of the unloading vehicle in the prior art cannot meet the requirements of mass production, and to provide a control system and control method for the precise positioning of the mobile unloading vehicle. The present invention adopts programmable control The technology of inverter and vector frequency converter greatly improves the reliability and precision of the whole system, realizes automatic control and realizes fully automatic operation, avoids human errors and improves efficiency

Images