The main purpose of AGV trolley is to improve the work efficiency and automation level of transportation. It is widely used in industrial automation factories and replaces traditional manual handling, which can greatly reduce enterprise costs and increase profits. We all know that AGVs are extremely safe and have self-obstruction avoidance functions, but sometimes there are failures that cannot sense obstacles. What is the reason?
1. The problem of the sensor itself. For example, an AGV robot using infrared, lidar or vision solutions encounters a completely transparent glass in front of it, so the detection may fail because the light directly passes through the glass. At this time, sensors such as ultrasonic waves are needed to detect obstacles. detect. Therefore, it is better for the AGV car to use a combination of various sensors. Through a cross-validation of the data collected by different sensors and the fusion of information, the safety of the car can be better ensured.
2. Crosstalk with other sensors. For example, ultrasonic ranging generally requires ultrasonic arrays. If they work at the same time, the sensors between the arrays will easily interfere with each other. The light waves emitted by sensor A are reflected back and received by sensor B, resulting in errors in the measurement results. Work in sequence, because the sampling period of the AGV ultrasonic sensor is relatively long, which will slow down the entire acquisition speed and affect real-time obstacle avoidance. This requires that the hardware structure and algorithm must be well designed to increase the sampling speed as much as possible. Reduce crosstalk between sensors.
3. Capacitor compatibility issues. During the driving process of the AGV car, the motor and driver will have capacitance compatibility problems during the working process, which may lead to errors in the sensor collection information, especially the analog sensors, so pay attention to keep the collection of equipment and sensors such as the motor driver isolated. part, as well as the power communication part, to ensure that the whole system can work normally.
