1.Laser-guided AGV robot
This AGV smart car is equipped with a rotatable laser scanner, and a laser positioning mark with a highly reflective reflective plate is installed on the wall or pillar along the running path. The AGV smart car relies on the laser scanner to emit a laser beam, and then receives the laser beam. The laser beam reflected by the positioning marks around the vehicle, the on-board computer calculates the current position of the vehicle and the direction of movement, and compares it with the built-in digital map to correct the orientation to achieve automatic transportation.
At present, the application of this AGV trolley is more and more common. And according to the same guiding principle, if the laser scanner is replaced with an infrared transmitter or an ultrasonic transmitter, the laser-guided AGV robot can be changed into an infrared-guided AGV and an ultrasonic-guided AGV smart cart.
2.Vision guided AGV trolley
The vision-guided AGV smart car is a rapidly developing and mature AGV smart car. This kind of AGV smart car is equipped with a CCD camera and sensors, and an on-board computer is provided with an image database of the surrounding environment of the AGV robot's desired path. During the operation of the AGV robot, the camera dynamically acquires the image information of the vehicle's surroundings and compares it with the image database to determine the current position and make a decision on the next driving.
3.AGV trolley guided by electromagnetic induction
Electromagnetic induction guidance is generally buried on the ground along a predetermined travel path. When high-frequency current flows through the wire, an electromagnetic field is generated around the wire. Two electromagnetic sensors are installed symmetrically on the left and right sides of the AGV robot. The difference in the strength of the electromagnetic signal can reflect the extent to which the AGV deviates from the path. AGV's automatic control system controls the steering of the vehicle based on this deviation. Continuous dynamic closed-loop control can ensure the AGV's stable and automatic tracking of the set path. This electromagnetic induction guided navigation method is currently used on most commercial AGVS, especially for large and medium AGV robots.