Search

CN-122009236-A - Vehicle alarm prompting system, method and equipment based on dynamic track sound effect

CN122009236ACN 122009236 ACN122009236 ACN 122009236ACN-122009236-A

Abstract

The invention discloses a vehicle alarm prompting system, method and equipment based on dynamic track sound effect, and belongs to the technical field of vehicle safety early warning. The system comprises an environment sensing module, a data processing module, an audio effect adjusting module and a sounding module, wherein the environment sensing module collects space data of an external target and the vehicle, the data processing module pre-processes the space data, establishes a mapping relation between the space data and an in-vehicle auditory sensing parameter and generates an audio effect dynamic adjusting instruction, the audio effect adjusting module processes a basic audio signal according to the parameter and the instruction to generate a dynamic track audio signal, and the sounding module outputs the signal through speakers at different positions in the vehicle. The method realizes real-time synchronous update of the alarm prompt and the external target space state through the cooperative work of the modules. According to the invention, the space data of the object outside the vehicle is converted into the perceivable dynamic track sound effect in the vehicle, so that a driver accurately judges the position and the movement state of the object through hearing, the driving safety is improved, and the vehicle driving safety device is suitable for various driving scenes.

Inventors

  • SUN LI

Assignees

  • 中国第一汽车股份有限公司

Dates

Publication Date
20260512
Application Date
20260327

Claims (10)

  1. 1.A vehicle alarm prompting system based on dynamic track sound effect, comprising: The environment sensing module is used for acquiring the space information of an external target relative to the vehicle, wherein the space information at least comprises a real-time distance between the target and the vehicle, an azimuth angle of the target relative to the vehicle, a change rate of the real-time distance and a change rate of the azimuth angle; The data processing module is in communication connection with the environment sensing module and is used for carrying out filtering and calibration processing on the space information and generating auditory sensing distance parameters and sound effect dynamic adjustment instructions based on the processed space information, wherein the sound effect dynamic adjustment instructions comprise delay adjustment parameters and gain adjustment parameters; The sound effect adjusting module is in communication connection with the data processing module and is used for determining a corresponding in-vehicle loudspeaker according to the hearing perception distance parameter, dynamically adjusting a basic audio signal of the alarm prompt tone according to the delay adjusting parameter and the gain adjusting parameter and generating an audio signal with a dynamic track; and the sounding module is in communication connection with the sound effect adjusting module and comprises a plurality of loudspeakers arranged at different positions in the vehicle and used for outputting the audio signals with the dynamic track.
  2. 2. The system of claim 1, wherein the environmental awareness module is provided with an acquisition component comprising an ultrasonic radar, a millimeter wave radar, and a camera; the acquisition components are arranged at the head, the tail and/or two sides of the vehicle body; the plurality of speakers include at least speakers disposed in front left, front right, rear left, and rear right of the driver.
  3. 3. The system of claim 1, wherein the data processing module comprises a first processing unit configured to map the azimuth angle to an azimuth index of a speaker in the vehicle and map the real-time distance to the auditory perception distance parameter, wherein the auditory perception distance parameter has a monotonic correspondence with the real-time distance; The second processing unit is used for generating a loudspeaker switching instruction according to the change rate of the azimuth angle, and the sound effect adjusting module is used for controlling sound image transition between adjacent loudspeakers based on the loudspeaker switching instruction; the third processing unit is used for generating an alarm switching instruction when the change rate of the real-time distance and/or the change rate of the azimuth angle meet preset conditions, and the sound effect adjusting module is used for switching the basic audio signal into intermittent high-frequency alarm sound based on the alarm switching instruction.
  4. 4. The system of claim 1, wherein the sound effect adjustment module adjusts the gain adjustment parameter and the delay adjustment parameter according to a rate of change of the real-time distance to increase the output intensity of the corresponding speaker and decrease the delay when the target approaches the vehicle and decrease the output intensity of the corresponding speaker and increase the delay when the target is away from the vehicle.
  5. 5. A vehicle alert cue method for dynamic track sound effects, the method comprising: Acquiring space information of an external target relative to a vehicle, wherein the space information at least comprises a real-time distance between the target and the vehicle, an azimuth angle of the target relative to the vehicle, a change rate of the real-time distance and a change rate of the azimuth angle; Filtering and calibrating the space information; generating auditory perception distance parameters and sound effect dynamic adjustment instructions based on the processed spatial information, wherein the sound effect dynamic adjustment instructions comprise delay adjustment parameters and gain adjustment parameters; determining a corresponding in-vehicle loudspeaker according to the auditory perception distance parameter, and dynamically adjusting a basic audio signal of an alarm prompt tone according to the delay adjustment parameter and the gain adjustment parameter to generate an audio signal with a dynamic track; and outputting the audio signal with the dynamic track through the corresponding in-vehicle loudspeaker.
  6. 6. The method of claim 5, wherein filtering and calibrating the spatial information comprises filtering the spatial information using Kalman filtering, moving average filtering, and/or median filtering, and calibrating the filtered spatial information.
  7. 7. The method of claim 5, wherein generating the sound effect dynamic adjustment instruction based on the processed spatial information includes adjusting the gain adjustment parameter and the delay adjustment parameter according to a rate of change of the real-time distance, increasing the gain adjustment parameter and decreasing the delay adjustment parameter when the target approaches the vehicle, and decreasing the gain adjustment parameter and increasing the delay adjustment parameter when the target is away from the vehicle.
  8. 8. The method of claim 7, wherein generating the dynamic sound effect adjustment command based on the processed spatial information further comprises generating a speaker switching command according to a change rate of the azimuth angle, and controlling output intensity between adjacent speakers to switch according to a preset transition rule based on the speaker switching command when the target moves laterally.
  9. 9. The method of claim 7, further comprising switching the base audio signal to an intermittent high frequency alert tone and outputting the intermittent high frequency alert tone when the rate of change of the real-time distance and/or the rate of change of the azimuth satisfies a preset alert condition.
  10. 10. An electronic device, the electronic device comprising: at least one processor, and A memory communicatively coupled to the at least one processor, wherein, The memory stores a computer program executable by the at least one processor to enable the at least one processor to perform the method of any one of claims 5-9.

Description

Vehicle alarm prompting system, method and equipment based on dynamic track sound effect Technical Field The invention relates to the technical field of vehicle safety early warning, in particular to a vehicle alarm prompting system, method and equipment based on dynamic track sound effect. Background The vehicle alarm prompting system is an important component of the vehicle active safety system and is mainly used for feeding back dangerous information of obstacles outside the vehicle to a driver in the driving process, reminding the driver to take danger avoidance measures in time, and playing a key role in complex low-speed road conditions such as vehicle meeting in a parking lot, narrow road passing, reversing and warehousing. At present, the existing vehicle alarm prompting system adopts sound signals with single frequency, fixed volume and fixed position to warn, and can only transmit dangerous simple information to a driver, and cannot feed back spatial position information such as specific distance and relative angle between an obstacle and a vehicle, and the movement state of the obstacle cannot be reflected. Although the distance between the obstacle and the vehicle can be distinguished through the change of the volume, the vehicle alarm system still lacks of space positioning capability, and a driver is difficult to quickly and accurately judge whether the obstacle is positioned in front of, behind, left side or right side of the vehicle, and traffic accidents are easily caused by judgment delay of dangerous information under complex road conditions. Furthermore, the existing output mode of the vehicle-mounted alarm sound source has obvious defects that most of the output modes only adopt a single loudspeaker or a small number of loudspeakers with fixed sound channels to output sound, sound image positioning cannot be performed according to the target azimuth of the obstacle, and continuous acoustic expression mechanisms for the moving states of approaching, separating, transversely displacing and the like of the obstacle are absent. The driver can not establish stable space reference system in the car through the sense of hearing, is difficult to perceive the dynamic change of barrier, and when there is a plurality of barriers or barrier to take place continuous displacement outside the car, alarm sound easily appears mixing, and the driver extremely easily produces erroneous judgement, has reduced alarm prompt system's warning effect by a wide margin. In order to solve the above technical problems, it is needed to develop a vehicle alarm prompting system and method capable of realizing spatial positioning of an obstacle and continuously sensing the motion state of the obstacle, and by optimizing the acoustic technology, a driver can quickly and accurately acquire the spatial position and dynamic track information of an object outside the vehicle through hearing, so as to improve the driving safety of the vehicle. Disclosure of Invention In order to solve the technical problems, the invention provides a vehicle alarm prompting system, method and equipment based on dynamic track sound effect, which solve the technical problems that the existing vehicle alarm prompting system can not spatially position an obstacle, can not enable a driver to sense the movement state of the obstacle continuously in an auditory manner, and can easily mix alarm sounds in a complex scene to be misjudged, realize accurate mapping of external target space data and in-vehicle auditory perception, enable the driver to rapidly judge the target position and movement trend through the dynamic track sound effect, shorten the risk avoidance response time and improve the driving safety. In order to achieve the above purpose, the invention adopts the following technical scheme: in a first aspect, the present invention provides a vehicle alarm prompting system based on dynamic track sound effects, including: The environment sensing module is used for acquiring the space information of an external target relative to the vehicle, wherein the space information at least comprises a real-time distance between the target and the vehicle, an azimuth angle of the target relative to the vehicle, a change rate of the real-time distance and a change rate of the azimuth angle; The data processing module is in communication connection with the environment sensing module and is used for carrying out filtering and calibration processing on the space information and generating auditory sensing distance parameters and sound effect dynamic adjustment instructions based on the processed space information, wherein the sound effect dynamic adjustment instructions comprise delay adjustment parameters and gain adjustment parameters; The sound effect adjusting module is in communication connection with the data processing module and is used for determining a corresponding in-vehicle loudspeaker according to the hearing perception distance parameter, dyn