CN200983208Y - Voice reporting system for vehicular real-time road information based on GPS and wireless communication mode - Google Patents

Abstract

The utility model discloses a vehicle-carrying real time traffic status voice broadcast system based on GPS and radio communication mode, the circuit of the utility model comprises a radio equipment for transmitting real time traffic status information with regional identify codes, a radio receiving equipment, a GPS reception module, a voice broadcast module, a data updating interface and a computer processor. The computer processor confirmed by the GPS module and based on the code of an electronic map certain region where the user is in filters real time traffic status information transmitted by the transmitting equipment and being consistent with the region code and sends to the voice broadcast module connected with the computer processor. The utility model has the advantages of that users can get correct located information from the GPS and obtain a voice cue relative to location, the utility model can send traffic status information in real time through the radio communication mode and has an encryption function to the sending information, the vehicle-carrying terminal can update the information such as fuel stations, one-way traffics, speed limiting and settings of vehicle-carrying terminal or the like through an USB interface.

Description

Vehicle-mounted real-time road voice broadcasting system based on GPS and wireless communication mode

Technical field

The utility model belongs to vehicle mounted traffic road conditions real-time broadcasting system.

Background technology

The car-mounted device that the name that occurs in the market is called the pathfinder comprises parts such as processor, global position system GPS and voice module.This device is determined the position at the present place of vehicle by GPS information, and static informations such as highway section, the place ahead speed limit, refuelling station, candid photograph violating the regulations are provided to the driver then, and is violating the regulations to reduce.The Data Update of this device, as speed limit, modification of capturing information such as place violating the regulations, employing be online download, carry out the renewal of data then by RS-232 interface.Described pathfinder's car-mounted device only limits to provide static information to the user, can't obtain Real-time Traffic Informations such as road conditions, accident, the magnitude of traffic flow, and not popularizing of RS-232 interface limited upgrading in time of user data.

Summary of the invention

The purpose of this utility model provides a kind ofly not only can report Real-time Traffic Information, and use cost is low, the vehicle-mounted real-time road language play back system based on GPS and wireless communication mode that contains much information.

The utility model realizes that the broadcasting system circuit of above-mentioned purpose comprises:

Emission contains the wireless device of real-time road condition information of region recognition coding, and described traffic information is encoded, modulation by frequency modulated subcarrier or CDMA, the emission of GSM/GPRS transmitter;

Radio receiver, the data input pin of its output termination computer processor;

The GPS receiver module, the data input pin of its output termination computer processor;

The voice broadcast module, the voice signal output terminal of its input termination computer processor;

The Data Update interface is the usb circuit of computer processor;

Computer processor is determined by the GPS module, electronic chart zone, user place be encoded to foundation, filter out the real-time road condition information that is consistent with this regional code that has of transmitter emission, and deliver to connected voice broadcast module.

The utlity model has following advantage and good effect:

1. the user obtains accurate locating information by GPS, and obtains the prompting relevant with the position with speech form, as: zig zag, refuelling station, one-way road, speed-limiting messages etc.;

2. send traffic information in real time by wireless communication mode, have the function that institute's photos and sending messages is encrypted;

3. car-mounted terminal receives traffic information by wireless communication mode, in conjunction with the positional information of self, with voice mode traffic information in the user provides the place ahead certain limit;

4. can point out the user that do not pay dues automatically, the regular period user that do not pay dues is stopped to send real-time road condition information;

5. car-mounted terminal can pass through the USB interface lastest imformation, comprising: the renewal of information such as refuelling station, one-way road, speed limit, change that car-mounted terminal is provided with etc.

Description of drawings

Fig. 1 is a circuit system schematic diagram of the present utility model.

Embodiment

Physical circuit composition of the present utility model and principle of work are as follows:

The utility model comprises unit such as wireless transmitting device, radio receiver, GPS receiver module, voice broadcast module, Data Update interface and computer processor, and their annexation is seen Fig. 1.The information of wireless transmitting device can derive from Public Security Department, based on renewals in 2 minutes urban district major trunk roads road conditions information once.This information before emission according to the zones of different in urban district, its corresponding information content is encoded, modulated through existing software and hardware equipment, send by existing frequency modulation broadcasting transmitting station or mobile communication system then, communication comprises frequency modulated subcarrier, CDMA, GSM/GPRS, according to the wherein a certain wireless communication mode of the concrete selection of applied environment.Except that wireless transmitting device, the miscellaneous equipment of system is car-mounted terminal equipment.Radio receiver in the car-mounted terminal equipment receives real-time road condition information by frequency modulated subcarrier or existing mobile communications system.Obtain the locating information of oneself by GPS, position with oneself is the center, in conjunction with the current driving direction, delimit certain zone, this zone is corresponding with above-mentioned launching code zone, and computer processor is by the identification of region coding, the traffic information that filtering is useless, export useful region information to the voice broadcast module, report the traffic information useful in this zone the driver with speech form.

Above-mentioned zones of different according to the urban district, the example of the coded system that its corresponding information content is encoded is as follows:

ABC-CDE-F

A: represent direction, wherein, " 0 " represents ring, connecting line east orientation west, north orientation south etc. in the loop wire; " 1 " represent loop wire outer shroud, connecting line west eastwards, south orientation north etc.;

BC: represent highway section classification, be " 22 " as two rings, three rings are " 33 ", and three Fourth Ring connecting lines are " 34 " etc.;

CDE: representing concrete highway section numbering, as two, three, the highway section numbering at Fourth Ring, is starting point with the south-north axis, according to counterclockwise, from 001 open numbering;

F: represent road conditions, " 1 "-unimpeded, " 2 "-slowly, and " 3 "-block up.

Claims (1)

1, a kind of vehicle-mounted real-time road voice broadcasting system based on GPS and wireless communication mode is characterized in that circuit comprises:

Emission contains the wireless device of real-time road condition information of region recognition coding, and described traffic information is encoded, modulation by frequency modulated subcarrier or CDMA, the emission of GSM/GPRS transmitter;

Radio receiver, the data input pin of its output termination computer processor;

The GPS receiver module, the data input pin of its output termination computer processor;

The voice broadcast module, the voice signal output terminal of its input termination computer processor;

The Data Update interface is the usb circuit of computer processor;

Computer processor is determined by the GPS module, electronic chart zone, user place be encoded to foundation, filter out the real-time road condition information that is consistent with this regional code that has of transmitter emission, and deliver to connected voice broadcast module.

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