Parametric array traffic sound safety prompting system

A safety reminder and parametric array technology, applied in the field of traffic safety application of parametric array technology, can solve the problems of lack of directionality of sound, omnidirectional diffusion of ordinary horn sound, prone to accidents, etc., to reduce the accident casualty rate and reduce sound interference , the effect of reducing the casualty rate

Pending Publication Date: 2019-12-17
杭州聚声科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the safety signs are passively receiving information, and the camera cannot participate in the command, accidents and secondary accidents are prone to occur on site, and the rate of injury and forgetting remains high
Although tweeters were installed in some areas as a tool for active safety reminders, they were dismantled because the sound of ordinary speakers diffused in all directions, causing disturbance to residents
And because the sound lacks directionality, it will also cause trouble to the driver in actual command

Method used

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  • Parametric array traffic sound safety prompting system

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Effect test

Embodiment 1

[0024] Such as figure 1 As shown, a parametric array traffic sound safety reminder system of the present invention includes a sensor 1 for detecting whether an incoming vehicle enters the sensing range, a microprocessing unit 2 for receiving detection information sent by the sensor 1, and a voice information preset And convert the voice information selected by the micro-processing unit 2 into a voice module 4 of a voice signal, convert the voice signal into an ultrasonic modulation signal and transmit the ultrasonic modulation signal into the air to restore the sounding parameter array module 5, the sensor 1, the micro-processing unit 2. The voice module 4 and the parameter array module 5 are connected in sequence. The parametric array module 5 includes a parametric array host 51 for receiving voice signals and modulating the voice signals and the generated ultrasonic signals into ultrasonic modulation signals, and a parametric array sound unit 52 for transmitting ultrasonic m...

Embodiment 2

[0027] The difference between this embodiment and Embodiment 1 is that the parametric array sound unit 52 is installed on the municipal vehicle, and when the municipal vehicle is running, when the sensor 1 senses a car coming from behind, the detection information is sent to the micro-processing unit 2, and the micro-processing unit 2 Processing unit 2 selects the voice information in the voice module 4 according to factors such as the driving speed of the vehicle coming from behind and / or the distance with the municipal vehicle after receiving the detection signal, and the microprocessing unit 2 sends the signal for selecting the voice information to the voice module 4 , the voice module 4 converts the voice information into a voice signal and sends it to the parameter array host 51. The parameter array host 51 receives the voice signal and modulates the voice signal and the ultrasonic signal generated by itself into an ultrasonic modulation signal, and the parameter array host...

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Abstract

The invention discloses a parametric array traffic sound safety prompting system comprising a sensor, a micro-processing unit, a voice module, and a parametric array module that are connected successively. The sensor is used for detecting whether a coming vehicle enters an induction range or not. The micro-processing unit is used for receiving detection information sent by the sensor. Voice information is preset at the voice module and the voice module is used for converting voice information selected by the micro-processing unit into a voice signal. The parametric array module is used for converting the voice signal into an ultrasonic modulation signal and transmitting the ultrasonic modulation signal to the air to restore sound production. According to the invention, the sounds are collected on a road or a bridge to reduce the sound interference on other areas, so that the casualty rate is reduced. Moreover, because the sounds have directionality, a designated driver can be commandedthrough partition control, so that the commanding efficiency is improved and thus the casualty rate is further reduced.

Description

technical field [0001] The invention relates to the field of application of parametric array technology in traffic safety, in particular to a parametric array traffic sound safety reminder system. Background technique [0002] Acoustic parametric array technology in the air is an audio sound wave directional technology that has emerged in recent years. A highly directional audio sound beam can be generated by using an acoustic parametric array. The audio sound beam produced by the acoustic parametric array has unique characteristics, which are mainly reflected in two aspects: 1. Local propagation characteristics: that is, the sound beam only propagates in a local space, and the audience can hear the sound in this propagation space, while in the Listeners outside this propagation space area cannot hear or can only hear a very weak sound; 2. Unique reflection characteristics: After the audio sound beam encounters an obstacle, it has reflection characteristics similar to light...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/09G08B3/10
CPCG08B3/10G08G1/09
Inventor 俞钱君马春雷虞雷波
Owner 杭州聚声科技有限公司
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