Supersonic wave emitter and balance vehicle system capable of following automatically

Abstract

The invention relates to the field of balance vehicles, and specifically relates to a supersonic wave emitter and a balance vehicle system capable of following automatically. The supersonic wave emitter comprises a housing and a supersonic wave emitting structure arranged in the housing. The supersonic wave emitting structure comprises a supersonic wave emitting head used for emitting supersonic waves and a driving assembly used for driving the supersonic wave emitting head. A diffuser is further arranged relative to an emitting end of the supersonic wave emitting head, and a top point of the diffuser and the emitting end are arranged in an opposite manner. According to the embodiment of the invention, the supersonic waves originally propagated in a directed manner are turned to the supersonic waves propagated diffusely in an annular direction, that is to say, the supersonic waves propagated in a directed manner are turned to the supersonic waves propagated in an omnidirectional manner, and a supersonic wave receiving device is enabled to receive supersonic wave signals at any angle of a ring, so that the receiving range of the supersonic waves is improved, the accuracy of automatic following of the balance vehicle is further improved, and the usage experience of the balance vehicle is improved.

Description

technical field [0001] The invention relates to the field of balance vehicles, in particular to an ultrasonic emitting device and an automatic following balance vehicle system. Background technique [0002] As a new type of transportation, the self-balancing vehicle is mainly based on a basic principle called "dynamic stability", which is the automatic balancing ability of the vehicle itself. The built-in precision solid-state gyroscope is used to judge the posture state of the vehicle body, and the precise and high-speed central microprocessor calculates the appropriate command to drive the motor to achieve the balance effect. [0003] The automatic tracking of the self-balancing car requires the use of positioning technology to determine the state of the self-balancing car. The existing technology generally uses ultrasonic technology for positioning, and the ultrasonic sending and receiving technology uses a fixed-direction sending and receiving method. [0004] However, ...

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Problems solved by technology

[0004] However, this ultrasonic transceiver method has the problem that when the transceivers are not in the same direction and are at a certain angle to each other, the receiving end cannot receive the transmitted ultrasonic signals, which makes the accuracy of the automatic tracking of the balance car low and affects the stability of the balance car. experience

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