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A car entertainment system and its function diagnosis method for warning sound

An entertainment system and warning sound technology, applied in the field of Internet of Vehicles, can solve problems such as imperceptible, affecting driving safety, damage, etc.

Active Publication Date: 2022-06-10
ECARX (HUBEI) TECHCO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the car warning sound system fails, such as the warning sound generator or the wiring harness or the horn is damaged, the vehicle cannot emit the warning sound, and the fault is not easy to detect, so it will affect driving safety

Method used

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  • A car entertainment system and its function diagnosis method for warning sound
  • A car entertainment system and its function diagnosis method for warning sound
  • A car entertainment system and its function diagnosis method for warning sound

Examples

Experimental program
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Embodiment 1

[0052] See Figure 1 and 2 As shown, the present application embodiment provides an in-vehicle entertainment system for warning tone sound, the car entertainment system comprising a digital signal processor and a warning tone system, a warning tone system comprising a warning tone power amplifier and a warning speaker:

[0053] Digital signal processor, connected to the warning tone power amplifier, which is used to generate a diagnostic signal in accordance with the preset ultrasonic frequency, and according to the preset diagnostic cycle to send the diagnostic signal to the warning tone power amplifier, the digital signal processor is also connected to the microphone, for receiving the ambient sound wave inside the vehicle obtained by the microphone, and to identify whether there is an ultrasound frequency corresponding to the diagnostic signal in the ambient sound wave, when there is an ultrasound frequency corresponding to the diagnostic signal in the ambient sound wave, it is ...

Embodiment 2

[0094] See Figure 3 As shown, the present application embodiment provides a functional diagnostic method for the warning tone sounding of the car entertainment system, the car entertainment system comprises a digital signal processor and a warning tone system, the warning sound system comprises a warning tone power amplifier and a warning speaker, the method comprising the following steps:

[0095] S1, the digital signal processor generates a diagnostic signal according to the preset ultrasound frequency;

[0096] S2, according to the preset diagnostic cycle to send the diagnostic signal to the warning tone power amplifier;

[0097] S3. The warning tone power amplifier amplifies the diagnostic signal and sends the diagnostic signal after power amplification to the warning speaker;

[0098] S4, warning speaker to play the diagnostic signal after power amplification;

[0099] S5, the digital signal processor uses the microphone to obtain the ambient sound wave inside the vehicle, id...

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PUM

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Abstract

This application relates to a car entertainment system for warning sound and its function diagnosis method, and relates to the technical field of Internet of Vehicles. The car entertainment system includes a digital signal processor and a warning sound system. The warning sound system includes a warning sound power amplifier and a warning sound Horn; the digital signal processor is used to generate a diagnostic signal and send the diagnostic signal to the warning sound power amplifier, and is also used to determine the normal function of the warning sound system when the ambient sound wave in the car has the ultrasonic frequency corresponding to the diagnostic signal; the warning sound power amplifier , used to amplify the power of the diagnostic signal, and send the amplified diagnostic signal to the warning sound speaker; the warning sound speaker is used to play the power amplified diagnostic signal. This application analyzes the environmental sound waves in the car to determine whether there is a preset ultrasonic frequency in the environmental sound waves. Based on the characteristics of ultrasonic waves, it diagnoses the function of the warning sound system without affecting the driver's driving.

Description

Technical field [0001] The present invention relates to the field of vehicle networking technology, specifically to an in-vehicle entertainment system for warning tone sound and a functional diagnostic method thereof. Background [0002] The current vehicle alarm sound system is mainly used for audio warning, which is used to notify the driver or passengers in the car through audio. When the car warning tone sound system fails, such as the warning tone generator or wiring harness or horn damage, resulting in the vehicle can not issue a warning sound, and the fault is not easy to detect, so it will affect the driving safety. [0003] Therefore, in order to solve the above problems and improve driving safety, a warning tone sound function diagnostic technology is provided. Contents of the Invention [0004] The present application provides an in-vehicle entertainment system for warning sound and its function diagnostic method, the analysis of the ambient sound wave in the car, to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60Q11/00B60R16/023
CPCB60Q11/00B60R16/0232
Inventor 王康喻明富冯军伟林佳雯王彪谢冬菁
Owner ECARX (HUBEI) TECHCO LTD