CN201177876Y - Road traffic sign based on roadside broadcasting - Google Patents

Abstract

The utility model provides a road traffic sign based on roadside broadcasting, which belongs to the field of traffic transportation, and comprises a common traffic sign, wherein a detection line and an intelligent device are additionally arranged on the common traffic sign, and the detection line is connected with the intelligent device; the intelligent device comprises a single chip microcomputer, a single chip microcomputer oscillation circuit, a single chip microcomputer reset circuit, a wireless module, a vehicle detector, a traffic sign board, an address latch, an externally-expanded program memory, a voice chip and a radio frequency transmitting module, wherein the single chip microcomputer oscillation circuit, the single chip microcomputer reset circuit, the wireless module, the vehicle detector, the traffic sign board, the address latch, the externally-expanded program memory, the voice chip and the radio frequency transmitting module are connected with the single chip microcomputer, the voice chip and the. The utility model discloses arouse navigating mate's attention more easily, realized the induced function of road, guarantee traffic safety.

Description

A Road Traffic Sign Based on Roadside Broadcasting

technical field

The utility model belongs to the field of traffic and transportation, in particular to a road traffic sign based on roadside broadcasting. Through a voice broadcasting system and a car FM radio, the ordinary traffic sign becomes an intelligent variable information sign, so as to realize safety guidance and improve road service level , Guarantee traffic safety function.

Background technique

At present, the existing road traffic signs are ordinary traffic signs, which are fixed visible road signs or road signs set on the road. In poor fog, drivers are likely to have safety accidents because they cannot see the signs clearly. Although some technologies are said to be intelligent, they are not perfect. One of them requires the use of special receiving devices to obtain limited information, which increases costs and takes up limited space in vehicles; Buttons, only after the vehicle stops and the occupants get off, can the information be obtained by pressing the buttons, which can easily lead to parking accidents and is a very dangerous measure. Based on the above reasons, people hope to develop an intelligent traffic sign based on voice broadcast, which can transmit the information on the traffic sign and the road information around the sign to road users in the form of broadcast, so as to realize the all-weather barrier-free road guidance function. , to ensure traffic safety.

Contents of the invention

The purpose of this utility model is to provide a road traffic sign based on roadside broadcasting in view of the defects of the above-mentioned prior art, which can make ordinary traffic signs into intelligent variable information signs without increasing the cost, and realize road safety. Dynamic guidance function to ensure traffic safety.

In order to achieve the above object, the technical solution adopted by the utility model is: a road traffic sign based on roadside broadcasting, including ordinary traffic signs, adding a detection line and an intelligent device on the ordinary traffic sign, and the detection line is connected with the intelligent device. The detection line realizes the detection of the working status of traffic signs, which is convenient for maintenance and management. Add a detection line and an intelligent device on the ordinary traffic sign, and the detection line is connected with the intelligent device; the intelligent device includes a single-chip microcomputer and a single-chip oscillation circuit connected with the single-chip microcomputer, a single-chip microcomputer reset circuit, a wireless module, a vehicle detector, a traffic sign board, an address A latch, an externally expanded program memory, a voice chip, and a radio frequency transmitting module, wherein the address latch is connected with the single-chip microcomputer, the voice chip and the externally expanded program memory, and the voice chip is connected with the data memory and the radio frequency transmitting module. Two types of information are stored on the chip of the utility model. One is the service information provided for road users, including: the name of the road where the traffic sign is located, the kilometer stake number, the 100-meter stake number, the speed limit value of the road section, the intersection or the entrance and exit Name and other information that needs to be prompted; the other type is the information required by road managers, including: the above service information, traffic sign number, traffic sign working status, traffic sign main performance indicators, etc. The service information is converted into an audio signal through the voice chip and sent to the (car) FM radio in the form of FM broadcast through the wireless transmission circuit, so that the driver and passengers can also know the correctness of the road they are driving through the auditory channel, and understand some other safe driving. information. These service information can be updated and changed through SMS, so that an ordinary traffic sign can be changed into a variable information sign. For example, the administrator can change the speed limit value of the road section according to the weather conditions. "Change to" It's raining and the road is slippery, drive carefully, the recommended speed limit is 40 kilometers." The management information is sent to the management department through SMS query to know whether the sign is damaged in time for maintenance and management. Therefore, the utility model is transmitted to road users in the form of voice, and becomes the second sensory channel, which increases the stimulation of information and is more likely to attract the driver's attention; receiving information through FM radio does not increase the cost of vehicle users. Under certain conditions, the road guidance function is realized; the voice release information is changed in time through SMS, so that ordinary traffic signs become intelligent variable information signs to ensure traffic safety.

Described single-chip microcomputer is 89C52 type single-chip microcomputer, and single-chip microcomputer oscillating circuit is 51 single-chip microcomputer oscillating circuits, and single-chip microcomputer reset circuit is 51 single-chip reset circuits, and the serial port circuit in the wireless module is 51 single-chip microcomputer serial port circuits, and the address latch is a 74LS373 latch. The extended program memory is 27C256EPROM memory, the voice chip is T6668 chip, and the RF transmitter module is BH1418 chip of BH141x series.

The single-chip microcomputer adopts MCS-51 series single-chip microcomputer, MCS-96 series single-chip microcomputer or DSP series single-chip microcomputer.

The voice chip is an ISD series voice chip.

The radio frequency transmitting module adopts BA1404 chip or NJM2035 chip.

The beneficial effects of the utility model can be summarized as the following four points:

1) Compared with the prior art, the utility model installs a detection line on the ordinary traffic sign to realize the detection of the working state, which is convenient for maintenance and management.

2) Compared with the prior art, the utility model stores the service information and management information of road traffic signs on the chip of the smart device, and transmits them to road users in the form of voice, which becomes the second sensory channel and increases the information coverage. The amount of stimulation is easier to attract the driver's attention.

3) Compared with the prior art, the utility model receives information through the FM radio, and realizes the road guidance function without increasing the cost of the vehicle user.

4) Compared with the prior art, the utility model changes the voice release information in time through the short message mode, so that ordinary traffic signs become intelligent variable information signs, and traffic safety is ensured.

Description of drawings

Fig. 1 is the logic control schematic diagram of the intelligent device described in the utility model;

Fig. 2 is a circuit structure diagram of the intelligent device described in the present invention.

In the figure: 1 single-chip microcomputer, 1.1 single-chip microcomputer oscillation circuit, 1.2 single-chip microcomputer reset circuit, 1.3 wireless module, 1.3.1 serial port circuit, 1.4 vehicle detector, 1.5 traffic sign board, 1.6 address latch, 1.7 external expansion program memory, 2 voice Chip, 2.1 microphone, 2.2 data memory, 3 radio frequency transmission module.

Detailed ways

Best practice:

The invention relates to a road traffic sign based on roadside broadcasting. A detection line and an intelligent device are added to the ordinary traffic sign, and the detection line is connected with the intelligent device. The detection line includes two types of metal and non-metal, which realize the detection of working status and facilitate maintenance and management. The intelligent device shown in Figure 1-2 includes 89C52 single-chip microcomputer 1, voice chip 2 and radio frequency transmission module 3. 89C52 single-chip microcomputer 1 is connected to T6668 voice chip 2, and T6668 voice chip 2 is connected to radio frequency transmission module 3. 51 single-chip microcomputer oscillation circuit 1.1 , 51 microcontroller reset circuit 1.2, wireless module 1.3, vehicle detector 1.4, traffic sign board 1.5, 74LS373 address latch 1.6 and 27C256EPROM external expansion program memory 1.7 are connected with 89C52 type microcontroller 1. Wherein, the serial port circuit 1.3.1 in the wireless module 1.3 is a 51 single-chip microcomputer serial port circuit. When the vehicle detector 1.4 detects a vehicle, it starts the broadcast program, and does not broadcast when there is no car. The externally expanded program memory 1.7 is used to solidify the message. The radio frequency transmitting module 3 is the BH1418 chip of the wireless audio transmission integrated circuit BH141x series of ROHM Company. 74LS373 address latch 1.6 is connected with 89C52 single-chip microcomputer 1, T6668 voice chip 2 and 27C256EPROM external expansion program memory 1.7. Microphone 2.1 circuit and four DRAM data memory 2.2 are connected with T6668 voice chip 2, and DRAM data memory 2.2 is used for storing the recording of microphone 2.1.

The single-chip microcomputer described in the utility model adopts MCS-51 series single-chip microcomputer, MCS-96 series single-chip microcomputer or DSP series single-chip microcomputer. The voice chip can also use the US ISD series voice chip. The radio frequency transmitting module can also adopt the BA1404 chip of Japan Toyo Corporation or the NJM2035 chip of Japan Shinsen Corporation. The DRAM data memory can also be a FLASH chip. The corresponding circuit structure also needs to be modified.

The utility model transmits the traffic sign service information to the road users in the form of voice, which becomes the second sensory channel, which increases the stimulation of the information and is easier to attract the driver's attention; the information is received by the FM radio without increasing the use of the vehicle Under the condition of the cost of the operator, the road guidance function is realized; the voice release information is changed in time through the SMS method, and the ordinary traffic signs become intelligent variable information signs to ensure traffic safety.

The above-mentioned embodiment is only a kind of preferred embodiment of the utility model, and the usual changes and replacements carried out by those skilled in the art within the scope of the technical solutions of the utility model should be included in the protection scope of the utility model Inside.

Claims (5)

1. A road traffic sign based on roadside broadcasting, comprising ordinary traffic signs, characterized in that: on said ordinary traffic signs, a detection line and an intelligent device are added, and the detection line is connected with the intelligent device; Connected single-chip microcomputer oscillating circuit, single-chip microcomputer reset circuit, wireless module, vehicle detector, traffic sign board, address latch and external expansion program memory, voice chip, radio frequency transmission module, in which the address latch and single-chip microcomputer, voice chip and external The extended program memory is connected, and the voice chip is connected to the data memory and the radio frequency transmitting module. 2. a kind of road traffic sign based on roadside broadcasting according to claim 1, is characterized in that: described single-chip microcomputer is 89C52 type single-chip microcomputer, and single-chip microcomputer oscillation circuit is 51 single-chip microcomputer oscillation circuits, and single-chip microcomputer reset circuit is 51 single-chip reset circuits , the serial port circuit in the wireless module is a 51 single-chip microcomputer serial port circuit, the address latch is a 74LS373 latch, the external expansion program memory is a 27C256EPROM memory, the voice chip is a T6668 chip, and the radio frequency transmitting module is a BH1418 chip of the BH141x series. 3. The road traffic sign based on roadside broadcasting according to claim 1, characterized in that: said single-chip microcomputer adopts MCS-51 series single-chip microcomputer, MCS-96 series single-chip microcomputer or DSP series single-chip microcomputer. 4. A road traffic sign based on roadside broadcasting according to claim 1, characterized in that: the voice chip is an ISD series voice chip. 5. A road traffic sign based on roadside broadcasting according to claim 1, characterized in that: said radio frequency transmitting module adopts BA1404 chip or NJM2035 chip.

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