In the process of automatic handling operation in complex factory, considering the safety, AGV car is required to be able to identify obstacles and make correct response to prevent collision.Next, let’s introduce the principle of Jumi.
Obstacle detection principle of AGV: ultrasonic distance measurement is used to get the quantitative distance information, and then the quantitative distance information is used as the reference for speed control of AGV. Generally speaking, the obstacle is close to the detection device. Within a certain distance range, AGV will slow down. In a closer range, AGV car will stop. When the obstacle is removed, AGV will stopIt will return to normal driving automatically.
The existing obstacle detection methods of AGV in the market are all judged by the output I / O status of the obstacle monitoring device, that is, the method can only judge whether there is an obstacle in front when there is an output signal / no output signal, but can not quantify the distance of the obstacle.And once the obstacle is detected, the AGV control system will stop immediately, so if the AGV works at a high speed, it will bring danger when it stops immediately due to the inertia of the car and the objects on the car.
AGV obstacle detection method: obstacle detection device, which includes ultrasonic sensor module, ranging module and AGV speed control module; the ultrasonic sensor module is used to transmit and receive ultrasonic signal; the ranging module is used to process the ultrasonic signal, convert it into quantitative distance information and output it to AGV speed control module; the AGV speed control module is used to detect the AGV obstacle;AGV speed control module is used to adjust the AGV speed according to the quantitative distance information output by the ranging control unit, so as to reduce the inertia and stop slowly.
In addition, optical visual perception and ultrasonic sensors are used to detect the distance between vehicles.Multiple obstacle detection ensures the safety of AGV car in application to the maximum extent.