A control method and system for an automatic following vehicle

Abstract

A control method and system for an automatic following vehicle. In the present invention, non-uniformly distributed infrared receiving tubes are arranged on the infrared receiving module, and the infrared signals of the infrared transmitting module are received through the non-uniformly distributed infrared receiving tubes, and the main The direction is gradually aligned with the infrared transmitting module, and at the same time, during the alignment process, the intensity of the infrared signal is gradually reduced to obtain the critical intensity for the infrared signal to be transmitted to the receiving module. Thus, the present invention can simultaneously calculate the distance between the infrared transmitting module and the receiving module according to the intensity of the infrared signal while performing high-precision fast direction finding, and realize fast direction finding and ranging and fast automatic following. The present invention can reduce the accuracy requirements for infrared devices through the cooperation of the hardware circuit and the control unit, realize high-precision fast direction finding and fast automatic tracking on the premise of a small number of infrared receiving modules, and further reduce its hardware cost.

Description

technical field [0001] The invention relates to sensor technology, in particular to a method and system for measuring direction and distance. Background technique [0002] The automatic following car can automatically track the movement of the target, and the automatic following car will follow the target. If the target is forward, it will automatically follow the car forward; if the target is backward, it will automatically follow the car backward; if the target is to the left, it will automatically follow the car to the left; The ideal following mode should keep the 12 o'clock direction (head direction) of the automatic following car facing the target and keep it in the 6 o'clock direction of the target. Therefore, the automatic following vehicle is expected to provide users with services such as accompanying or assisting in the handling of heavy objects. To realize the automatic tracking of the target by the automatic following vehicle, the premise is to realize the det...

AI Technical Summary

Problems solved by technology

The fixed-frequency amplifier circuit increases the receiving distance of the infrared module, but it also leads to the deterioration of the directional performance of infrared communication: for example, at a short distance, due to the scattering of light by the environment, even if the transmitter is facing away from the TSOP1836 receiver, the TSOP1836 can still receive to remote signal

[0008] To sum up, at present, there is a lack of low-cost directional communication and ranging technology within a range of more than ten meters indoors and outdoors, so it is difficult to automatically follow the target indoors

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