CN2916799Y

CN2916799Y - Foggy day traffic safety management device

Info

Publication number: CN2916799Y
Application number: CN 200620024267
Authority: CN
Inventors: 生庆申; 王巍
Original assignee: TIANSUI ELECTRONIC CO Ltd LINFEN CITY
Current assignee: TIANSUI ELECTRONIC CO Ltd LINFEN CITY
Priority date: 2006-04-26
Filing date: 2006-04-26
Publication date: 2007-06-27
Anticipated expiration: 2016-04-26

Abstract

The utility model relates to an information reminding device, in particular to a highway vehicle travel safety management device on foggy day that can display the visibility and speed information of safety vehicle travel. The utility model, which resolves the problem of complicated circuit structure for the existing vehicle travel indicating device on foggy day, comprises a terminal extension that is composed of a laser receiver IC1, a amplification circuit IC2, a singlechip core chip IC3 and an information output module IC4 under the control of a server as well as a laser emitter and a display facility controlled and regulated by the terminal extension. The output end of the laser receiver IC1 is connected to the input end of the singlechip core chip IC3 via the amplification circuit IC2; the output end of the singlechip core chip IC3 is connected to the information output module IC4; a light filter is positioned on the lens of the laser receiver IC1. The utility model, which filters a majority of disturbance from natural light with the light filter and simplifies the circuit, resolves the problem of complicated circuit structure in existing vehicle travel indicating device on foggy day.

Description

Highway travelling in fog day security control apparatus

Technical field

The utility model relates to a kind of information presentation device, specifically is a kind ofly to be used for the greasy weather when the highway up train, shows the visibility of mist and the highway travelling in fog day security control apparatus of safe driving speed information.

Background technology

The generation of mist and the deep or light safety that is directly connected to driving thereof, particularly for the automobile of greasy weather at running on expressway, the collision accident very easily knocks into the back, cause the great person and the economic loss of car crash, the variation of therefore in time understanding the mist condition is even more important for the driver and conductor.In order to address the above problem, many researchers have been made extensive work, as the patent No. is that 03245830 Chinese patent has been announced a kind of " highway greasy weather intelligence speed limit display device ", it comprises laser pickoff, eliminate the natural light interfered circuit, one be signal processing unit and display screen that core is formed with microprocessor or single-chip microcomputer, this device provides guarantee for travelling in fog day safety to a certain extent, but its circuit structure complexity, integrated inadequately, directly improved production cost.

Summary of the invention

The utility model provides a kind of highway travelling in fog day security control apparatus in order to solve existing travelling in fog day suggestion device circuit structure complicated problems.And be purpose only with the hardware configuration that this device is provided.

The utility model adopts following technical scheme to realize: a kind of highway travelling in fog day security control apparatus, comprise generating laser and the display device of controlling modulation by the terminal extension set that comprises laser pickoff IC1, amplifying circuit IC2, singlechip chip IC3 and message output module IC4 of server controls, by the terminal extension set, the output terminal of laser pickoff IC1 links to each other with the input end of singlechip chip IC3 through amplifying circuit IC2, the output terminal of singlechip chip IC3 is connected to message output module IC4, on the camera lens of laser pickoff IC1 optical filter is housed.Under the control of server, generating laser produces modulated laser through the modulation of terminal extension set, the modulated laser light beam is beaten at laser pickoff and is equipped with on the camera lens of optical filter, laser pickoff produces an instantaneous voltage, this voltage is sent into singlechip chip through amplifying circuit, singlechip chip is converted to digital signal with voltage signal, and treated corresponding visibility signal and the safe driving rate signal of obtaining, and two signals are sent by message output module, show via display device, be implemented in the purpose that the greasy weather reminds the highway up train.Compared with prior art, the utility model adopts the interference of the most of natural light of optical filter filtering, has simplified circuit to a great extent.

The utility model adopts the interference of the most of natural light of optical filter filtering, has simplified circuit, has solved existing travelling in fog day suggestion device circuit structure complicated problems.

Description of drawings

Fig. 1 is a functional-block diagram of the present utility model;

Fig. 2 is a terminal extension set circuit block diagram of the present utility model;

Fig. 3 is a terminal extension circuit schematic of the present utility model;

Fig. 4 is prompting display screen circuit theory diagrams of the present utility model;

Fig. 5 is synthesis display screen circuit theory diagrams of the present utility model; Pin links to each other with label among the figure

Among the figure: the 1-generating laser; 2-terminal extension set; 3-points out display screen; The 4-server; 5-synthesis display screen.

Embodiment

A kind of highway travelling in fog day security control apparatus, comprise generating laser 1 and the display device of controlling modulation by the terminal extension set 2 that comprises laser pickoff IC1, amplifying circuit IC2, singlechip chip IC3 and message output module IC4 of server 4 controls, by terminal extension set 2, the output terminal of laser pickoff IC1 links to each other with the input end of singlechip chip IC3 through amplifying circuit IC2, the output terminal of singlechip chip IC3 is connected to message output module IC4, on the camera lens of laser pickoff IC1 optical filter is housed.Described amplifying circuit is a three-stage amplifier, adopts high precision operating amplifier, and for example: model is 7650 operational amplifier.Described server and high precision operating amplifier are existing known products.

During concrete enforcement, because we measure the visibility of mist by surveying the laser attenuation amount, so wishing decay is the bigger the better, therefore, described generating laser adopts the green laser transmitter of 532nm wavelength, laser pickoff IC1 adopts and generating laser frequency response the best, silicon blue cell that wavelength is identical with it, the optical filter employing green color filter on the laser pickoff IC1 camera lens.(532nm ± 10nm) visible light is filtered gets rid of the interference of most of natural light by green color filter.Described green laser transmitter, silicon blue cell, green color filter are existing known products.

Described singlechip chip adopts the Philips2132ARM chip; The Philips2132ARM chip is existing known products, carry 10 A/D translation functions and FLASH memory body, not only can carry out analog to digital conversion voluntarily and obtain corresponding numerical value, and can be by all data before the outage of FLASH memory body record, can return to after being convenient to start the shutdown or the outage before state work on, also have functions such as the wireless data of carrying out connection.

Described display device comprises prompting display screen 3 and synthesis display screen 5; The prompting display screen is arranged at the highway roadside, and the synthesis display screen is arranged at the place, expressway access, and prompting display screen and synthesis display screen can be used for formulating according to making of reality, mainly are installed in crucial areas such as crossing, and as seen be convenient to the vehicular traffic driver eye-catching.It will replace fixed speed display board and electronics control speed advices plate on the present highway, add intelligent management and long-distance real-time management notion fully, be implemented under the different visibility of greasy weather and show safe driving speed, and added the versatility of equipment, do not having to add the traffic information display function under the boisterous influence.Prompting display screen and synthesis display screen are to realize very easily to these those skilled in the art, as long as make display screen realize Presentation Function.

Described message output module comprises wireless output module and GPRS module, and wireless output module adopts the STR-18 wireless module; The GPRS module adopts the POWERSON-3000A model.Described STR-18 wireless module and POWERSON-3000A model GPRS module are existing known products.

During concrete the use, under the control of server 4, generating laser 1 produces modulated lasers through 2 modulation of terminal extension set, and the Laser Modulation rate is divided into 2 shelves, and one grade is that per minute is launched one group, one group totally 4 times, each 20ms; One grade be per 20 seconds one group, one group totally 4 times, each 20ms; The modulated laser light beam is beaten at laser pickoff and is equipped with on the camera lens of optical filter, after filtering, beats on silicon blue cell optical filter, produce an instantaneous voltage, voltage is through the first order processing and amplifying of amplifying circuit, with microvolt voltage amplification (by 7650 operational amplifiers of drift value minimum), and then the amplification of process two-stage (is adopted 7650 operational amplifiers equally, amplifying the back maximum voltage is 3V), the voltage signal that amplifies is sent into the 11st pin of single-chip microcomputer Philips2132ARM chip through the output terminals A IN1 of amplifying circuit, single-chip microcomputer Philips2132ARM chip is converted to digital signal with voltage signal, the method that adopts repeatedly computing to average during this time, send one group (4 times) by laser, cause variation in voltage 4 times, 4 high voltage numbers that produced, subtract computing, obtain the numerical value of time variant voltage, then average is taken out in 4 additions again, get rid of the interference of remaining natural light, obtain laser attenuation numerical value accurately, determine the visibility and the safe driving speed of mist with this numerical value.Pass through the 20th pin of single-chip microcomputer Philips2132ARM chip then, the 60th pin, the 52nd pin, the 56th pin, the 64th pin, the 57th pin is delivered to wireless output module with rate signal, and through wireless output module with rate signal be transported to the prompting display screen (also can be described as the variable velocity advices plate), while is through the 33rd pin of single-chip microcomputer Philips2132ARM chip, the 34th pin with the visibility signal conveys to the GPRS module, use the mobile network by the GPRS module visibility signal is sent to server, server is equipped with two system softwares, one is the software that receives data, major function is reception and stores the information that each terminal device sends, can inquire about the state of visibility in each highway section, terminal extension set place in whole highway section.If have certain station terminal equipment to break down, then can demonstrate the numbering and the highway section of faulty equipment; Another one software is to come intellectual analysis highway section situation by the data of first software storage; and information is sent to synthesis display screen by SMS module; the synthesis display screen is arranged on crucial areas such as crossing; play the effect of prompting driver greasy weather the place ahead highway mist condition,, perhaps set by the user when the season that does not have mist; can close the branch display screen; play energy-conservation and effect equipment protection, can also use synthesis display to shield and release news, play the effect of the equipment of making full use of.Because the utility model is a purpose with the hardware configuration that this device is provided only, therefore concrete software program is not done narration at this.

In the terminal device, for the conversion of visibility and speed, we have inquired about the web material of Ministry of Communications and each Department of Communications of Shanxi Province, do not have the relevant data of the safety traffic speed under the various different visibility at all.Therefore, we have analyzed highway (highway) and have gone up the security reaction time, promptly with 110 kilometers speed (being the speed of 30.55555556 meters of per seconds) per hour when travelling, see that there is automobile or the barrier that casts anchor 200 meters distant places suddenly, a series of actions such as he has the time of 200 ÷ 30.55555565=6.545454545 seconds to carry out stepping on clutch, gear shift, subtract throttle, brake are enough, are safe therefore.We can be referred to as " safety time " to this time, 200 meters distances are regarded as high-visibility (does not influence substantially more than 200 and travels, here do not consider), then can obtain a formula: 200m ÷ 6.545454546m/s=110km/h (safety traffic speed).Therefore, our the safety traffic speed that can calculate under any visibility is as follows:

180m÷6.545454546s＝99km/h

160m÷6.545454546s＝88km/h

140m÷6.545454546s＝77km/h

120m÷6.545454546s＝66km/h

100m÷6.545454546s＝55km/h

80m÷6.545454546s＝44km/h

60m÷6.545454546s＝33km/h

Generally speaking, the laser signal that the laser generator that the utility model utilizes the laser pickoff reception to be arranged on the highway appropriate location sends also is converted to electric signal, carry out analog to digital conversion with its amplification and by singlechip chip, because light wave has decay in various degree in the mist medium of variable concentrations, the program that is configured by the singlechip chip utilization is carried out computing to the attenuation degree of signal, the electric signal of the corresponding safety traffic speed of a motor vehicle of the corresponding representative of visibility of output and mist is finally delivered to display screen and is shown.

Claims

1, a kind of highway travelling in fog day security control apparatus, comprise generating laser (1) and the display device of controlling modulation by the terminal extension set (2) that comprises laser pickoff IC1, amplifying circuit IC2, singlechip chip IC3 and message output module IC4 of server (4) control, by terminal extension set (2), the output terminal of laser pickoff IC1 links to each other with the input end of singlechip chip IC3 through amplifying circuit IC2, the output terminal of singlechip chip IC3 is connected to message output module IC4, it is characterized in that on the camera lens of laser pickoff IC1 optical filter being housed.

2, highway travelling in fog day security control apparatus according to claim 1, it is characterized in that described generating laser (1) adopts the green laser transmitter of 532nm wavelength, laser pickoff IC1 adopts and generating laser (1) frequency response the best, silicon blue cell that wavelength is identical with it, the optical filter employing green color filter on the laser pickoff IC1 camera lens.

3, highway travelling in fog day security control apparatus according to claim 1 and 2 is characterized in that described amplifying circuit IC2 is a three-stage amplifier, adopts high precision operating amplifier 7650.

4, highway travelling in fog day security control apparatus according to claim 1 and 2 is characterized in that described singlechip chip IC3 adopts the Philips2132ARM chip.

5, highway travelling in fog day security control apparatus according to claim 3 is characterized in that described singlechip chip IC3 adopts the Philips2132ARM chip.

6,, it is characterized in that described display device comprises prompting display screen (3) and synthesis display screen (5) according to claim 1 or 2 or 5 described highway travelling in fog day security control apparatus.

7, highway travelling in fog day security control apparatus according to claim 4 is characterized in that described display device comprises prompting display screen (3) and synthesis display screen (5).

8, according to claim 1 or 2 or 5 or 7 described highway travelling in fog day security control apparatus, it is characterized in that described message output module IC4 comprises wireless output module and GPRS module.

9, highway travelling in fog day security control apparatus according to claim 6 is characterized in that described message output module IC4 comprises wireless output module and GPRS module.