CN-121973700-A - Rearview mirror position adjustment method and device and vehicle

CN121973700ACN 121973700 ACN121973700 ACN 121973700ACN-121973700-A

Abstract

The embodiment of the application provides a rearview mirror position adjusting method, a device and a vehicle, wherein a detection radar is arranged on a rearview mirror, the rearview mirror position adjusting method comprises the steps of sending a rearview mirror position detection instruction to the detection radar when a target vehicle is in a static state, wherein the rearview mirror position detection instruction is used for triggering the detection radar to send ultrasonic waves, receiving ultrasonic wave echo parameters returned by the detection radar, wherein the ultrasonic wave echo parameters are used for quantifying attribute representing echo signals generated by reflected ultrasonic waves, determining the current position of the rearview mirror according to the ultrasonic wave echo parameters, and determining whether to execute an adjusting function according to the current position, wherein the adjusting function is used for adjusting the position of the rearview mirror.

Inventors

Hong Zuhao
GU JINGJIE
FANG CUI
Li Kunshi
WANG SHIXUAN

Assignees

广州汽车集团股份有限公司

Dates

Publication Date: 20260505
Application Date: 20260402

Claims (10)

1. A method for adjusting a position of a rear view mirror, the rear view mirror being provided with a detection radar, comprising: Transmitting a rearview mirror position detection instruction to a detection radar when a target vehicle is in a static state, wherein the rearview mirror position detection instruction is used for triggering the detection radar to transmit ultrasonic waves; receiving ultrasonic echo parameters returned by the detection radar, wherein the ultrasonic echo parameters are used for quantifying the attribute of echo signals generated by reflecting the ultrasonic waves; Determining the current position of the rearview mirror according to the ultrasonic echo parameters; and determining whether to execute an adjusting function according to the current position, wherein the adjusting function is used for adjusting the position of the rearview mirror.
2. The method of claim 1, wherein the ultrasonic echo parameters comprise at least a real-time residual duration, a multi-echo characteristic, wherein the multi-echo characteristic comprises a plurality of characteristic parameters of a plurality of the echo signals; Determining the current position of the rearview mirror according to the echo parameter comprises the following steps: Determining the current position of the rearview mirror according to the real-time residual vibration time length or And determining the current position of the rearview mirror according to the real-time residual vibration time length and the multi-echo characteristics.
3. The method of claim 2, wherein determining the current position of the rearview mirror based on the real-time residual vibration duration comprises: determining a comparison result of the real-time residual vibration duration and a reference residual vibration duration, wherein the reference residual vibration duration is attribute information of the detection radar; And under the condition that the comparison result indicates that the real-time residual vibration duration is smaller than or equal to the reference residual vibration duration, determining the current position of the rearview mirror as a first type position, wherein the first type position is the position of the rearview mirror in a unfolded state.
4. The method of claim 2, wherein determining the current position of the rearview mirror based on the real-time residual vibration duration and the multi-echo feature comprises: determining a comparison result of the real-time residual vibration time length and the reference residual vibration time length; And under the condition that the comparison result indicates that the real-time residual vibration time length is longer than the reference residual vibration time length, determining the current position of the rearview mirror according to the multi-echo characteristic, wherein the multi-echo characteristic at least comprises the propagation time length of each echo signal, the reflection times corresponding to each echo signal and the amplitude of each echo signal, the propagation time length of each echo signal is used for indicating the time distance between the ultrasonic wave sending time and the echo signal receiving time, and the reflection times corresponding to each echo signal is used for indicating the times of the ultrasonic wave corresponding to the echo signal when the echo signal is received.
5. The method of claim 4, wherein determining the current position of the rearview mirror based on the multi-echo feature comprises: determining adjacent echo signals of each echo signal according to the reflection times corresponding to each echo signal; For each echo signal, determining a first ratio of the propagation duration to the reflection times, and determining a second ratio of the amplitude to a target amplitude, so as to obtain a plurality of first ratios and a plurality of second ratios, wherein the target amplitude is the amplitude of the adjacent echo signal; And determining the current position of the rearview mirror as a first type position under the condition that the difference value of any two first ratios belongs to a preset numerical value interval and the difference value of any two second ratios belongs to the preset numerical value interval, wherein the first type position is the position when the rearview mirror is in a unfolded state.
6. The method of claim 5, wherein determining the adjacent echo signal for each echo signal based on the corresponding number of reflections of the echo signal comprises: For each echo signal, determining a difference value between a first reflection frequency corresponding to the echo signal and a second reflection frequency corresponding to other echo signals; And determining the other echo signals corresponding to the smallest difference value as the adjacent echo signals.
7. The method of claim 1, wherein determining whether to perform an adjustment function based on the current location comprises: And when the current position of the rearview mirror is a first type position, the current position of the rearview mirror is adjusted to a second type position by executing the adjusting function, wherein the first type position is a position when the rearview mirror is in an unfolded state, and the second type position is a position when the rearview mirror is in a folded state.
8. A rear view mirror position adjustment device provided with a detection radar thereon, comprising: The sending module is used for sending a rearview mirror position detection instruction to the detection radar when the target vehicle is in a static state, wherein the rearview mirror position detection instruction is used for triggering the detection radar to send ultrasonic waves; the receiving module is used for receiving ultrasonic wave echo parameters returned by the detection radar, wherein the ultrasonic wave echo parameters are used for quantifying the attribute of echo signals generated by reflecting the ultrasonic waves; The determining module is used for determining the current position of the rearview mirror according to the ultrasonic echo parameters; And the execution module is used for determining whether to execute an adjustment function according to the current position, wherein the adjustment function is used for adjusting the position of the rearview mirror.
9. A vehicle is characterized by comprising a detection radar and a vehicle-mounted controller, wherein the detection radar is arranged on a rearview mirror, The vehicle-mounted controller is used for sending a rearview mirror position detection instruction to the detection radar when the target vehicle is in a static state, wherein the rearview mirror position detection instruction is used for triggering the detection radar to send ultrasonic waves; The detection radar is used for sending ultrasonic waves under the triggering of the rearview mirror position detection instruction, receiving echo signals generated by reflecting the ultrasonic waves, determining ultrasonic echo parameters for quantitatively representing the echo signals, and transmitting the ultrasonic echo parameters to the vehicle-mounted controller; the vehicle-mounted controller is further used for receiving the ultrasonic echo parameters, determining the current position of the rearview mirror according to the ultrasonic echo parameters, and determining whether to execute an adjusting function according to the current position, wherein the adjusting function is used for adjusting the position of the rearview mirror.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored therein a computer program which, when executed by a processor, implements the rearview mirror position adjustment method as claimed in any one of claims 1 to 7.

Description

Rearview mirror position adjustment method and device and vehicle Technical Field The embodiment of the application relates to the technical field of data processing, in particular to a method and a device for adjusting the shape of a rearview mirror and a vehicle. Background In the related art, the vehicle itself cannot acquire the position information of the exterior mirror, and thus, there is a problem that the position state of the exterior mirror cannot be detected. In view of the above problems, no effective solution has been proposed at present. Disclosure of Invention The embodiment of the application provides a rearview mirror position adjusting method, a rearview mirror position adjusting device and a vehicle, and aims to solve the problem that the position state of an external rearview mirror cannot be detected. According to one aspect of the embodiment of the application, a rearview mirror position adjusting method is provided, and a detection radar is arranged on a rearview mirror, and the method is characterized by comprising the steps of sending a rearview mirror position detection instruction to the detection radar when a target vehicle is in a static state, wherein the rearview mirror position detection instruction is used for triggering the detection radar to send ultrasonic waves; the method comprises the steps of receiving ultrasonic echo parameters returned by a detection radar, wherein the ultrasonic echo parameters are used for quantifying the attribute representing echo signals generated by reflected ultrasonic waves, determining the current position of a rearview mirror according to the ultrasonic echo parameters, and determining whether to execute an adjusting function according to the current position, wherein the adjusting function is used for adjusting the position of the rearview mirror. In the embodiment of the application, under the condition that the vehicle is determined to be stationary, triggering the detection radar integrated in the rearview mirror to send ultrasonic waves, receiving echo signals generated by the reflected ultrasonic waves, and determining the position state of the rearview mirror according to the attribute of the echo signals, so that the problem that the position state of the external rearview mirror cannot be detected is solved; the method comprises the steps of receiving ultrasonic wave echo parameters, determining the current position of the rearview mirror, realizing the technical effect of automatically judging the position state of the rearview mirror, further, executing an adjusting function to adjust the position of the rearview mirror under the condition that the position of the rearview mirror needs to be adjusted, achieving the purpose of avoiding the unexpected position of the rearview mirror, and further realizing the technical effect of avoiding the influence of the position of the rearview mirror on the execution of functions such as remote parking and the like. Optionally, the ultrasonic echo parameters at least comprise real-time residual vibration time length and multi-echo characteristics, wherein the multi-echo characteristics comprise a plurality of characteristic parameters of a plurality of echo signals, the current position of the rearview mirror is determined according to the echo parameters, the current position of the rearview mirror is determined according to the real-time residual vibration time length, or the current position of the rearview mirror is determined according to the real-time residual vibration time length and the multi-echo characteristics. Optionally, determining the current position of the rearview mirror according to the real-time residual vibration time length comprises determining a comparison result of the real-time residual vibration time length and the reference residual vibration time length, wherein the reference residual vibration time length is attribute information of the detection radar, and determining the current position of the rearview mirror as a first type position when the comparison result indicates that the real-time residual vibration time length is smaller than or equal to the reference residual vibration time length, wherein the first type position is the position when the rearview mirror is in an unfolding state. The method comprises the steps of determining a comparison result of a real-time residual vibration time length and a reference residual vibration time length, and determining the current position of the rearview mirror according to the multi-echo characteristic when the comparison result indicates that the real-time residual vibration time length is longer than the reference residual vibration time length, wherein the multi-echo characteristic at least comprises the propagation time length of each echo signal, the reflection times corresponding to each echo signal and the amplitude of each echo signal, the propagation time length of each echo signal is used for indicating