AGV (automatic guided vehicle) traffic control method and system

A traffic control and traffic line technology, applied in control/regulation systems, transportation and packaging, non-electric variable control, etc., can solve the problems of inapplicability of four-way road, inability to provide release AGV, inability to apply two-way AGV, etc., to achieve memory and Low CPU overhead, guaranteed reliability and stability, and a wide range of effects

Active Publication Date: 2017-08-15
WUHU HIT ROBOT TECH RES INST
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, this method is only valid for three-way crossings and two-way crossings, and cannot be applied to four-w

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  • AGV (automatic guided vehicle) traffic control method and system
  • AGV (automatic guided vehicle) traffic control method and system
  • AGV (automatic guided vehicle) traffic control method and system

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[0026] Such as figure 2 As shown, each AGV vehicle is equipped with a card reader that reads the station card information. The dispatch system and the AGV card reader realize signal transmission through wireless means, that is, the card reader uses a wireless communication device Communicate with the control system for general dispatch. The control instructions of the AGV are obtained through the dispatch system. The dispatch system can make the AGV forward, reverse, stop, reset and other remote operations.

[0027] At each intersection in the AGV travel area, there is a station card with the same number of forks. The intersection can be a curve (two forks), three forks, four forks, etc., at the entrance of each intersection. There is one station card, that is, there are two station cards at the bend, three station cards at the three-way intersection, and four station cards at the four-way intersection. When the AGV traffic line is a two-way traffic line, there is a station card...

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Abstract

The invention discloses an AGV (automatic guided vehicle) traffic control method. The method includes the following steps that: 1) when an AGV travels to the entrance of an intersection, the information of station gates at the entrance of the intersection is read; 2) the current states of the station gates are judged according to the read information of the station gates, if the current states of the station gates are locked states, a step 3) is executed, if the current states of the station gates are non-locked states, a step 4) is executed; 3) the AGV stops, the information of the station gates at the entrance of the intersection is obtained according to a set frequency, and the method returns to 2); 4) the AGV travels and passes through the intersection according to a set route, the states of all station gates at the intersection are defined as locked states; and (5) when the AGV drives out of the intersection, all the states of the all station gates at the intersection are defined as non-locked states. The AGV (automatic guided vehicle) traffic control method of the invention has a wide application range. With the method adopted, control gates are not required to be arranged separately, and the control gates can be deployed together with the station gates; and the problem that unlocking cannot be performed at an intersection due to factors such as signals can be solved. The control method is simple, and therefore, the reliability and stability of AGV (automatic guided vehicle) traffic control can be ensured.

Description

technical field [0001] The invention relates to the field of traffic control. Background technique [0002] AGV (Automatic Guided Vehicle), that is, automatic guided vehicle, refers to a transport vehicle equipped with automatic guidance devices such as electromagnetic or optical, capable of driving along a prescribed guiding path, with safety protection and various transfer functions, in industrial applications A truck that does not require a driver is a common industrial equipment. With the improvement of factory automation, the AGV industry has great development prospects. However, since there are many AGVs running in the factory, the AGV in the straight line can achieve a good obstacle avoidance effect through the obstacle avoidance sensor without collision, but the magnetic track interlacing is complicated, and the control of the AGV at the intersection is relatively complicated, and Some AGVs need to travel in multiple directions, making it very tricky and difficult f...

Claims

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Application Information

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IPC IPC(8): G05D1/02
CPCG05D1/0276G05D2201/0216
Inventor 郭龙万立浩胡超陈双高云峰曹雏清
Owner WUHU HIT ROBOT TECH RES INST
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