Device for monitoring alarm sound of other motor vehicles in cab of motor vehicle

Abstract

The invention provides a device for monitoring the alarm sound of other motor vehicles in the cab of a motor vehicle. The device mainly comprises sound collectors, a signal processing unit, an alarm display screen and a voice alarm loudspeaker. Based on the characteristics that the alarm sound signal of a vehicle has fixed spectral range on the frequency domain and is periodic on the time domain, the method comprising the steps of filtering the signal and further carrying out the related detection can effectively judge whether the signal is generated from the alarm sound of the vehicle and judge the direction of the sound source of the alarm sound by two or more than two sound collectors 1 mounted at the periphery of the vehicle; and a driver can be given an alarm by the alarm display screen 9 and the voice alarm loudspeaker 3, so that the driver can learn about the driving direction of other vehicles under the circumstance that the window of the vehicle is closed, the noise from the vehicle per se or the ambient noise is very loud, or the alarm sound of other vehicles is small. Accordingly, the device of the invention can prevent traffic accidents, reduce the noise of the loudspeaker and further reduce the noise pollution at the same time.

Description

technical field [0001] The invention relates to a monitoring device for warning sounds of other motor vehicles in the cab of a motor vehicle, in particular to a device that can be installed on various types of motor vehicles to monitor the warning sounds of other motor vehicles in the cab and remind the driver. Auxiliary device for motor vehicle driving safety. Background technique [0002] At present, with the improvement of people's living standards, the production and sales of motor vehicles have risen rapidly, and the influence of motor vehicles on people will become greater and greater, resulting in more and more problems. The main issue is the safety of motor vehicle driving. There are many factors that cause motor vehicle safety. Among them, in traffic accidents, large trucks cause a large proportion of accidents. This is also related to the poor sound insulation effect of large trucks. Overtaking is not easy to see, and the alarm sound is easily drowned out by exte...

AI Technical Summary

Problems solved by technology

There are many factors that cause motor vehicle safety. Among them, in traffic accidents, large trucks cause a large proportion of accidents. This is also related to the poor sound insulation effect of large trucks. Overtaking is not easy to see, and the alarm sound is easily drowned out by external noise and the noise of the large truck itself, causing safety hazards

[0003] In addition, when the vehicle is driving with the windows closed, the noise in the driver's cab plus the road noise outside the vehicle, wind noise and other environmental noises make it very likely that the driver will not be able to hear the warning sounds from other vehicles. The warning sounds include The sound of horns, sirens and warning sounds of special vehicles cannot make correct judgment and treatment, resulting in unsafe factors and even serious traffic accidents

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