Automatic navigation system and method for forklift

Abstract

The invention discloses an automatic navigation system and method for forklifts. The system includes a main controller, a drive controller, a drive motor, a steering motor controller, a steering motor encoder, and a steering motor, as well as an electromagnetic wire and an electromagnetic frequency generator. and two electromagnetic frequency sensors, the main controller is used to obtain the electromagnetic frequency signals collected by the two electromagnetic frequency sensors in real time, and obtain the deviation direction and deviation size information of the forklift according to the electromagnetic frequency signals. When the deviation exceeds the threshold value, the main controller will send the forklift The deviation direction and deviation size information are sent to the steering motor controller, and the steering motor controller controls the steering of the steering motor to correct the deviation according to the position information fed back by the steering motor encoder. The automatic navigation system and method for forklifts of the present invention are more stable, more reliable, and safer. The operator does not need to hold the steering wheel in the roadway, and releases it to operate the lifting valve rod, so as to achieve the purpose of lifting while walking, and save operating time. Increase work efficiency.

Description

technical field [0001] The invention relates to the technical field of forklifts, in particular to an automatic navigation system and method for forklifts. Background technique [0002] Nowadays, the development of warehousing and logistics is rapid, and the demand for logistics warehouses is increasing. As a logistics equipment for storage and transfer of goods, forklifts are the main equipment used in modern logistics. A forklift that can store the maximum amount of goods in a limited space without affecting the stacking of goods is what customers pursue, and it is also the research direction of major forklift OEMs. Therefore, the concept of dense storage is a hot word at the moment, and narrow-aisle forklift trucks also follow. In order to improve safety and work efficiency, existing narrow aisle forklifts usually need to be used with mechanical guide rails and magnetic strips, and mechanical guide rails and forklifts also have the following problems: [0003] The tradi...

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Problems solved by technology

[0003] The traditional laying of mechanical guide rails is costly, and the bottom of the shelf will be wasted, and the goods cannot be placed directly on the ground. If the pallet truck needs to enter the roadway to pick up the goods at this time, it cannot be carried out;

[0004] In the traditional method of laying magnetic strips, the magnetic strips are easy to be dirty, and the magnetic strips are easy to be bent by other objects, affecting the magnetic signal and causing danger; the magnetic strips are also easy to demagnetize, and the magnetic strips need to be replaced regularly. The sensor price is also expensive, and the vehicle itself The speed of driving cannot be improved, and the efficiency of customers cannot be improved

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