Introduction of two types of traction Guided AGV
DANBACH ROBOT

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As the field of application expands, the types and forms of AGVs become diverse. The AGV is often divided into several types according to the navigation mode during the automatic driving of the AGV. The following mainly introduces two types of guided AGV:

1. Electromagnetic induction guided AGV

Electromagnetic induction type guidance is generally on the ground, embedding electric wires along a preset driving path. When high-frequency current flows through the wires, an electromagnetic field is generated around the wires, and two electromagnetic sensors are symmetrically mounted on the AGV, and they are received. The difference in the intensity of the electromagnetic signal can reflect the extent to which the AGV deviates from the path. The AGV's automatic control system controls the steering of the vehicle based on this deviation. Continuous dynamic closed-loop control ensures stable and automatic tracking of the set path by the AGV. This electromagnetic induction guided navigation method is currently used on most commercial AGVS, especially for large and medium-sized AGVs.

2. Laser guided AGV

The AGV is equipped with a rotatable laser scanner, and a laser positioning mark with a highly reflective reflector is mounted on a wall or pillar along the running path. The AGV relies on a laser scanner to emit a laser beam, and then receives reflection from the surrounding positioning mark. The returned laser beam, the on-board computer calculates the current position of the vehicle and the direction of the movement, and corrects the orientation by comparing with the built-in digital map, thereby realizing automatic handling.

At present, the application of this kind of AGV is more and more common. And according to the same guiding principle, if the laser scanner is replaced with an infrared emitter or an ultrasonic transmitter, the laser-guided AGV can be changed to an infrared guided AGV and an ultrasonic guided AGV.

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