Control method for automatic following car as well as system

Abstract

The invention relates to a control method for an automatic following car as well as a system. In the control system, infrared receiving tubes which are not uniformly distributed are arranged on an infrared receiving module, and the control method comprises the following steps: receiving an infrared signal of an infrared transmitting module by virtue of the infrared receiving tubes which are not uniformly distributed, gradually aligning a main direction of the infrared receiving module to the infrared transmitting module according to a region orientation of the received infrared signal, and gradually reducing strength of the infrared signal in an alignment process, so as to acquire critical strength that the infrared signal is transmitted to a receiving module. Therefore, the control methodcan synchronously calculate distance between the infrared transmitting module and the receiving module according to the strength of the infrared signal while high-precision rapid direction finding isperformed, and rapid direction finding and range finding as well as rapid automatic following are realized; and by virtue of coordination of a hardwire circuit and a control unit, the control systemcan reduce accuracy requirement on an infrared device, high-precision rapid direction finding and rapid automatic following are realized under the premise of a small amount of infrared receiving modules, and then hardware cost of the control system is reduced.

Description

technical field [0001] The invention relates to sensor technology, in particular to a method and system for measuring direction and ranging. 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 dete...

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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