Three-dimensional laser guidance AGV dolly system

Abstract

The present invention relates to a three-dimensional laser guidance AGV (Automated Guided Vehicle) dolly system. The system comprises a plurality of dolly bodies, a workshop and a plurality of reflectors, there are at least three reflectors, the reflectors are uniformly arranged at the lower surface of the roof of the workshop, the dolly bodies are provided with laser sensors for navigation, and when the dolly bodies are located in the workshop, the laser sensors for navigation on the dolly bodies form information interaction with the at least three reflectors at the same time, and the information interaction is that: the lasers emitted by the laser sensors for navigation are reflected by the reflectors and are received by the laser sensors for navigation. The system can perform location of the height of the dolly bodies.

Description

technical field [0001] The invention relates to a three-dimensional laser-guided AGV trolley system, which belongs to the field of AGVs. Background technique [0002] AGV is the abbreviation of (Automated Guided Vehicle), which means "automatically guided transport vehicle". Transporter with load function. [0003] The reflector of the existing AGV is usually fixed on the wall of the factory building, and its height is equal to the navigation laser of the AGV. When in use, the navigation laser emits laser light, and the laser is reflected by the reflector and is taken over by the navigation laser. By measuring the time difference between the two, the distance between the AGV car and the reflector is calculated, and the distance between the AGV car and at least 3 reflector boards is calculated, so that the specific position of the AGV car can be located in the factory building. In actual situations, Since some large items need to be placed in the factory building, thus bloc...

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Problems solved by technology

[0003] The reflector of the existing AGV is usually fixed on the wall of the factory building, and its height is equal to the navigation laser of the AGV. When in use, the navigation laser emits laser light, and the laser is reflected by the reflector and is taken over by the navigation laser. By measuring the time difference between the two, the distance between the AGV car and the reflector is calculated, and the distance between the AGV car and at least 3 reflector boards is calculated, so that the specific position of the AGV car can be located in the factory building. In actual situations, Since some large items need to be placed in the factory building, thus blocking the laser transmission between the AGV car and the reflector, thus affecting the positioning of the AGV car, the usual solution is to fix more reflector boards on the wall of the factory building; in addition , the installation height of the existing reflector needs to be equal to the height of the navigation laser. Usually, the installation height of the reflector is about 1.5m, so the reflector will bump into the reflector when carrying items, which will cause the position of the reflector to shift, resulting in The positioning of the AGV car is not accurate; finally, the existing AGV car can only be positioned on the plane, and the height of the AGV car cannot be positioned.

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