Broadcast system for road traffic caution and guidance

Abstract

The invention discloses a broadcast system for road traffic caution and guidance. The broadcast system comprises an FM (Frequency Modulation) transmitter and a vehicle-mounted FM receiver, wherein the FM transmitter comprises a sound source, an input channel, a filter module, an FM emission module, a first controller, a keypad and a coding module for switching on / off a specific FM channel; and the vehicle-mounted FM receiver comprises a first FM digital radio module, a power amplification module, a storage module, a second controller, a button, a second FM digital radio module, and a decoding and interruption generating circuit module. The broadcast system of the invention sends FM broadcast signals in the specific FM channel to a certain range taking an emission source as the center via the FM transmitter, wherein the FM broadcast signals can vary in emission powers and include encoding signals which can switch on or off the specific FM channel; the vehicle-mounted FM receiver of a vehicle within the signal coverage range can be automatically tuned to the same channel with the FM transmitter and can receive corresponding broadcast signals; and thus, traffic information can be sent to drivers and passengers anytime and anywhere within the signal coverage range, and traffic accidents can be reduced.

Description

technical field [0001] The invention relates to a road traffic vehicle warning and guidance broadcasting system. Background technique [0002] At present, road traffic warning and guidance are either through warning signs, warning lights, or through tweeters, or through media such as radio stations. These methods have certain limitations and lags. When the road traffic is congested, the drivers and passengers of the vehicles hope to know the reasons of the road traffic congestion and the approximate time when the congestion will be resolved in time, but even if the traffic police find the above situation, they cannot notify the drivers and passengers of the relevant congested places in time . In addition, when a traffic accident occurs in road traffic, the traffic police arrive at the scene of the accident to deal with the accident, but they cannot promptly notify the drivers and passengers on the relevant vehicles that were congested by the traffic accident about the accid...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a road traffic vehicle warning and guidance broadcast system for the above-mentioned defects that the road traffic vehicle warning and guidance system in the prior art cannot promptly and efficiently notify the vehicle drivers and passengers of traffic information anytime, anywhere System, the system can send a specific FM channel to a certain range centered on the transmission source through the FM transmitter, and the frequency modulation broadcasting signal with variable transmission power and the coded signal of the specific FM channel can be turned on and off, and the driving within the signal coverage The vehicle can automatically tune to the same channel as the FM transmitter through the on-board FM receiver and can receive the corresponding broadcast signal

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