CN101419749B - Low-visibility road traffic guiding method - Google Patents
Low-visibility road traffic guiding method Download PDFInfo
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- CN101419749B CN101419749B CN200810162099XA CN200810162099A CN101419749B CN 101419749 B CN101419749 B CN 101419749B CN 200810162099X A CN200810162099X A CN 200810162099XA CN 200810162099 A CN200810162099 A CN 200810162099A CN 101419749 B CN101419749 B CN 101419749B
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Abstract
The invention discloses a low-visibility road traffic guiding method. In the method, a vehicle passing detection sensor, a visibility detector, a field control module and a wireless controller are installed on the road, and an active illuminating guiding device is arranged. When the visibility detector detects that the road visibility is lower than a threshold, the vehicle passing detection sensor is started; the vehicle passing detection sensor detects the passing of the vehicle and sends vehicle passing information to the field control module; the field control module receives the vehicle passing information and then transmits the vehicle passing information to the wireless controller according to a real time visibility value and a start requirement code; the wireless controller receives the information and then emits a control signal which starts the active illuminating guiding device; and the active illuminating guiding device forms an illuminating warning marking tape along the road after the vehicle passes. The method has comprehensive low-visibility road traffic safe guidance including active directional guidance, front vehicle position indication, anti-bump prewarning and the like and can effectively reduces the incidence rate of traffic accident under the condition of low visibility.
Description
Technical field
The present invention relates to a kind of road traffic guiding method, particularly a kind of low-visibility road traffic guiding method mainly is applicable to roads such as highway, national highway, provincial highway, in low visibility environment such as greasy weather motor vehicles is carried out safe guidance.
Background technology
Visibility is a kind of vision parameter, but is meant the decipherment distance of human eye to specific objective.Visibility is very big to the influence of life, the particularly safety traffic of transport facility, and under existing technical conditions, the main dependence estimated, and visibility event is lower than secure threshold, can shorten the safe early warning distance, will have a strong impact on the safety of communications and transportation.The categorical data analysis that is prone to accidents according to motor vehicles in the road traffic operational process under the low visibility condition, the accident that accounts for more than 85% is to knock into the back, remaining is to hit accident such as guardrail, and hits and also have part to have little time to brake and cause owing to catching sight of front vehicles in the guardrail accident.Under normal visibility conditions, the motor vehicle driving personnel can be to the place ahead road conditions, make the judgement of lead, after but visibility descends, unsighted, under the constant situation of the speed of a motor vehicle, leave motor vehicle driving personnel's judgement time for and time of taking measures has been compressed, traffic hazard takes place easily.Therefore, the traffic safety guiding under the low visibility condition, especially the vehicle rear-end collision early warning is very important.
The reflecting sign of widespread use in road traffic, reflect according to the incident angle of incident light and to design, under the condition of visibility good, the vehicle driver can gem-purely see reflective traffic sign, but under the low visibility condition, the reflective function of reflecting sign is weakened, so that lose warning function, does not have the necessary security guiding.Under the low visibility environment, to guarantee motor vehicle safe drive; the prior art of indication road ahead situation has two kinds: the one; the equipment that can survey the place ahead road conditions is installed on motor vehicle; whether explorer motor-car the place ahead can safe passing, cooperates with the road surface guiding device to form navigation and drive again.Merely technically, this technical scheme can realize, whether agrees the problem used but can run into the final user in implementation process, and administrative authority is difficult to initiatively concentrate implement, and causes this technical scheme to implement to meet difficulty.The 2nd,, visibility detecting devices and road traffic guiding equipment are installed on road, under the low visibility environment, provide the traffic information of certain lead, guided vehicle safety traffic by the motor vehicle of road traffic guiding device in travelling.Chinese patent CN1233810 " sensing and controlling device for fog weather " discloses a kind of control device that can discern greasy weather weather and send control signal, this device comprises humidity sensor and optical sensor and humidity amplification controller and light amplification controller, it is by the connection of electric executive component switch, the output terminal output greasy weather at the humidity amplification controller is controlled electric signal automatically, the guiding lamp of control wired connection.This sensing and controlling device for fog weather is installed on road can and be sent control signal automatically to the correct identification of greasy weather weather, the control guiding lamp is finished guiding, reduces the generation of fogday traffic accident; But the alarm signal of this device is more single, can not solve vehicle rear-end collision early warning problem.
Summary of the invention
Technical matters to be solved by this invention is, overcome traffic safety guiding imperfection, alarm signal under the low visibility condition that prior art exists single, be difficult to initiatively concentrate the defective of implementing, a kind of initiatively comprehensive low-visibility road traffic safe guidance such as directional guide, front vehicle position indication, anti-collision early warning that have are provided, effectively prevent the low-visibility road traffic guiding method that traffic hazard takes place under the low visibility condition.
The present invention addresses the above problem the technical scheme that is adopted: this low-visibility road traffic guiding method, be characterized in: mounting vehicle is by detecting sensor, visibility detection instrument, These field control modules and wireless controller on road, and active illuminating guiding device is set, the program circuit of this road traffic guiding method is:
A, use visibility detection instrument are surveyed road visibility, when the visibility detection instrument detects the road low visibility in threshold value, start vehicle passing detection sensor;
B, vehicle passing detection sensor detect the current of vehicle, after vehicle passing detection sensor detects the information that vehicle passes through, send to These field control modules;
After c, These field control modules receive the information of vehicle passing detection sensor, require to be transmitted to wireless controller behind the coding according to visibility numerical value and startup in real time again;
D, wireless controller receive transmitter trigger control signal after the information of These field control modules, start active illuminating guiding device;
After e, active illuminating guiding device receive the start-up control signal of These field control modules emission, behind vehicle pass-through, form a light-emitting caution colored belt along the vehicle pass-through route.Be contained in the active illuminating guiding device on the road, be expert under the low visibility condition to light continuously on the rear view of vehicle road that crosses and a plurality ofly independently warn device and form the light-emitting caution colored belt, this police's sign shows that band is and the vehicle tail of front driving vehicle plesiochronous operation, and caution back vehicle is taken care and travelled.
The described active illuminating guiding device of low-visibility road traffic guiding method of the present invention is wireless numerical control protuberant guide post, wireless numerical control profile mark, mark is induced in wireless numerical control, the anti-collision early warning device, a kind of in the nonstandardized technique caution device, or combination more than two kinds, described light-emitting caution colored belt is a diversification warning mark signal, the caution light belt that the red passage of scintillation light that it is sent by wireless numerical control protuberant guide post and wireless numerical control profile mark constitutes, and/or wireless numerical control induces the induction sign that sends of mark, and/or the figure that sends of anti-collision early warning device and nonstandardized technique caution device, literal, the sound alarm signal is formed.
Described wireless numerical control protuberant guide post of low-visibility road traffic guiding method of the present invention and wireless numerical control profile mark are according to start-up control unblanking and the conversion work Show Color and the variation flicker frequency of wireless controller.
The described wireless numerical control of low-visibility road traffic guiding method of the present invention induces mark to send induction sign according to the start-up control signal of wireless controller, described induction sign is fixedly figure and/or the dynamic image that is made of dot matrix, and dynamic image shows different induction informations according to the control signal of wireless controller.
The different sensor of the described anti-collision early warning device configuration of low-visibility road traffic guiding method of the present invention, adapt to the early warning requirement of different road traffics respectively, the anti-collision early warning device sends different early warning figure and information warning according to the start-up control signal of wireless controller.
The described nonstandardized technique caution of low-visibility road traffic guiding method of the present invention device sends alarm signal according to the start-up control signal of wireless controller, described alarm signal is fixedly luminous pattern and/or the dynamic light-emitting image and the sound that are made of dot matrix, and nonstandardized technique caution device shows different alarm signals according to the control signal of wireless controller.
It is along the line that described wireless numerical control protuberant guide post of low-visibility road traffic guiding method of the present invention and the interval setting of wireless numerical control profile mark are installed in road, described wireless numerical control induces mark to be installed in road bifurcated or exit, described anti-collision early warning device is used for highway low visibility anti-collision early warning and road traffic stain, blind spot accident prevention and early warning, it is along the line that the anti-collision early warning device is installed in road, and the configuration space distance is according to minimum operation visibility and road condition setting.
The described visibility detection instrument of low-visibility road traffic guiding method of the present invention is installed one every 1～5 kilometer along the line at road.The visibility detection instrument uses the visibility detection instrument of road traffic special use, and this visibility detection instrument adopts forward direction laser acquisition technology to survey the visibility of mounting points, and it surveys range ability is 5000m～50 meter.
The described These field control modules of low-visibility road traffic guiding method of the present invention is used by communication interface, wireless module, the processor of tape program control, the field control assembly that power supply is formed, and These field control modules is installed in the mounting points of visibility detection instrument.
The described wireless controller of low-visibility road traffic guiding method of the present invention uses the length of being made up of the wireless control module of classification apart from the classification wireless energy control units, this wireless controller adopts the low-power wireless module of classification, take the form of the wireless or wireless commentaries on classics radio relay communication of wired commentaries on classics to realize wireless coverage to big zone, described wired commentaries on classics radio relay communication form is that digital radio transmitter module by a frequency is as local control module, use wired control of Electric potentials interface or RS-485 interface to receive upper steering order, described wireless commentaries on classics radio relay communication form uses the digital radio transmitter module of a frequency as local control module, be responsible for controlled plant management in the local areal coverage, the digital radio receiver module that uses another frequency receives from upper steering order as upper control interface.
The present invention compared with prior art has the following advantages: low-visibility road traffic guiding method science of the present invention, reasonable, practical.This method adopts wireless numerical control protuberant guide post, wireless numerical control profile mark, wireless numerical control to induce mark, anti-collision early warning device and nonstandardized technique caution device as active illuminating guiding device; The caution light belt that the red passage of scintillation light that the light-emitting caution colored belt that sends is sent by wireless numerical control protuberant guide post and wireless numerical control profile mark constitutes, the induction sign that wireless numerical control induces mark to send, the diversification warning mark signal that figure, literal, the sound alarm signal that anti-collision early warning device and nonstandardized technique caution device send formed; Under the low visibility condition, the light-emitting caution colored belt makes the vehicle that travelled carry a conspicuous operation tail, the vehicle that can be travelled is later clearly found and is discerned, and judge safe driving information accurately, the motor-driven vehicle going tail has prolonged the safe prediction distance of back car effectively, thereby obtain enough safe driving spacing distances under the low visibility condition, the traffic hazard incidence is guaranteed traffic safety when being reduced in low visibility greatly.
Description of drawings
Fig. 1 is low-visibility road traffic guiding method embodiment program circuit Fig. 1 of the present invention.
Fig. 2 is low-visibility road traffic guiding method embodiment program circuit Fig. 2 of the present invention.
Fig. 3 is low-visibility road traffic guiding method embodiment program circuit Fig. 3 of the present invention.
Fig. 4 is low-visibility road traffic guiding method embodiment program circuit Fig. 4 of the present invention.
Fig. 5 forms synoptic diagram for the low-visibility road traffic guiding system that low-visibility road traffic guiding method embodiment of the present invention adopts.
The traffic guidance system middle and long distance classification wireless energy control units connection diagram that Fig. 6 adopts for low-visibility road traffic guiding method embodiment of the present invention.
Fig. 7 is for the two lane highways motor vehicle road occupying identification of low-visibility road traffic guiding method embodiment of the present invention and by detecting synoptic diagram.
Fig. 8 is for the three track motor vehicle road occupying identifications of low-visibility road traffic guiding method embodiment of the present invention and by detecting synoptic diagram.
Fig. 9 is for the Four-Lane Road motor vehicle road occupying identification of low-visibility road traffic guiding method embodiment of the present invention and by detecting synoptic diagram.
Embodiment
Below by embodiment, the invention will be further elaborated in conjunction with the accompanying drawings.
The embodiment low-visibility road traffic guiding method is taked low-visibility road traffic guiding system shown in Figure 5, at vehicle passing detection point visibility detection instrument 1, vehicle passing detection sensor 2, These field control modules 3 and wireless controller 4 are installed, active illuminating guiding device 5 is set on road.
Vehicle pass-through detecting sensor 2 uses existing vehicle by sensor, can use infrared correlation detecting device, microwave displacement transducer, ultrasonic displacement sensor or the like to detect the passage situation of vehicle in the road.If only the machines motor-car passes through, an active infra-red correlation detecting device only need be set on the road surface just can be detected vehicle and pass through, its set-up mode is that two sides at road are provided with an infrared emittance and an infrared remote receiver respectively, can block the infrared ray of infrared emittance emission when vehicle is logical, infrared remote receiver does not receive the infrared ray of infrared transmitter emission at this moment just can assert have vehicle to pass through.If under the multilane situation, need cognitron motor-car shared track when the check point, then needing increases some acceptance points according to track quantity again on original infrared correlation detecting device basis, order that is blocked in succession by these acceptance points and time can be judged motor vehicle and take which track; The concrete setting is that angle with two infrared-rays of infrared emittance emission is 30～60 ° acceptance point is set, and two lane highways are provided with two, three tracks and three, Four-Lane Road are set are provided with four.Fig. 7～Fig. 9 is shown in the old road identification of motor vehicle on two lane highways, three tracks, the Four-Lane Road respectively and by detecting, this detection mode is provided with simply, and failure rate is low.Referring to Fig. 7, infrared emittance O is installed in the outside, track, top among the figure, and infrared remote receiver A and B are installed in the outside, track, below.When vehicle travelled by check point from left to right, if once promptly blocked two infrared-rays of BO, AO, this was because the process point is nearest apart from infrared transmitter, judges that then vehicle travels at first lane XCDL1; If vehicle successively blocks two infrared-rays of BO, AO, judge that then vehicle travels at second lane XCDL2.Referring to Fig. 8, infrared emittance O is installed in the track outside, top among the figure, and infrared remote receiver A, B and C are installed in the outside, track, below.When vehicle travels by check point from left to right,, judge that then vehicle travels at first lane XCDL1 if once promptly blocked CO, BO, three infrared-rays of AO; If front and back have been blocked one or two infrared-rays respectively, then can judge vehicle is to travel at second lane XCDL2; If can only block an infrared-ray respectively, then vehicle travels at third lane XCDL3.Referring to Fig. 9, infrared emittance O and D are installed in the track outside, top among the figure, and infrared remote receiver A, B and C are installed in the outside, track, below.When vehicle travels by check point from left to right,, judge that then vehicle travels at first lane XCDL1 if front and back have been blocked one, three infrared-rays respectively; If blocked one, two, one infrared-ray respectively, then can judge is to travel at second lane XCDL2; If can only block an infrared-ray respectively, then vehicle travels at third lane XCDL3; If at first block two infrared-rays, and then block an infrared-ray respectively, then vehicle travels on Four-Lane Road XCDL4.Vehicle is turned left from the right side and is travelled by check point, the same similar situation about being blocked according to infrared-ray and judge the track of vehicle '.
Referring to Fig. 5, These field control modules 3 is the field control assemblies with upper interface 6, and These field control modules 3 is made up of the processor 33 and the power supply 34 of communication interface 31, wireless module 32, tape program control.In the mounting points that visibility detection instrument 1 is installed a These field control modules 3 is installed simultaneously.These field control modules 3 is not having under the prerequisite of upper control, and the meeting autonomous operation also is in charge of whole measuring and controlling equipments and guiding device in this section.When having upper control, it is a relaying platform that is controlled by upper opertaing device, is responsible for finishing connection and communication between local device and the upper equipment.
Active illuminating guiding device 5 adopts wireless numerical control protuberant guide post 51, wireless numerical control profile mark 52, wireless numerical control to induce a kind of in mark 53, anti-collision early warning device 54 and the nonstandardized technique caution device 55 or combination more than two kinds.It is CN201095727Y at notification number that wireless numerical control protuberant guide post 51 adopts the applicant, and name is called disclosed digital radio control raised solar-energy road sign in the Chinese patent of " a kind of raised solar-energy road sign of digital radio control ".The key technical indexes and the profile of this digital radio control raised solar-energy road sign satisfy the national standard requirement, it can be opened under any illumination conditions at any time according to the start-up control signal of wireless controller 4, also work Show Color and variation flicker frequency that can be different according to upper control signal conversion.It is CN201117026Y at notification number that wireless numerical control profile mark 52 adopts the applicant, and name is called disclosed Digital Control sun power profile mark in the Chinese patent of " a kind of sun power profile mark of Digital Control ".This Digital Control sun power profile mark can open or close the profile sign that active illuminating shows at any time according to the start-up control signal of wireless controller 4 under any illumination conditions, its profile can have variform, and can be according to the steering order transformed profile mark work Show Color and the variation flicker frequency of host computer.It is along the line that wireless in actual applications numerical control protuberant guide post 51 and the 52 interval settings of wireless numerical control profile mark are installed in road, can shorten controlled visual spacing distance on the basis that does not increase cost.Wireless numerical control is induced mark 53 can open at any time according to the start-up control signal of wireless controller 4 and is sent induction sign, also can close at any time.Induction sign has fixedly two kinds in figure and dynamic image, and fixedly figure is used for fixing induces purpose, and dynamic image is made of dot matrix, can show required different induction informations according to the control signal of wireless controller 4.Wireless numerical control induces mark 53 to be installed in road bifurcated or exit.Anti-collision early warning device 54 is by disposing different sensors and using different early warning figures and information to satisfy the early warning requirement of the road traffic of different environments for use, and anti-collision early warning device 54 sends different early warning figure and information warning according to the start-up control signal of wireless controller 4.Embodiment anti-collision early warning device 54 adopts the applicant in Chinese patent application 200710156647.3, and denomination of invention is a disclosed roads traffic collision early warning device in " roads traffic collision early warning device ".Anti-collision early warning device 54 is mainly used in highway low visibility anti-collision early warning and road traffic stain, blind spot accident prevention and early warning.Anti-collision early warning device 54 is provided with apart from installing according to certain intervals along the line at road in an embodiment, the spacing distance that anti-collision early warning device 54 is provided with mainly disposes according to the minimum operation range of visibility, usually configuration space is one times a minimum operation range of visibility, when for example the minimum permission visibility in a highway section was 100 meters, the configuration space of anti-collision early warning device was 200 meters.Also can dispose according to road conditions, if road conditions are bad or comparatively dangerous highway section then that spacing distance is set is short, if road conditions better spacing is set can be longer, when disposing, generally get 300 meters to 2000 meters and be provided with one according to the road conditions condition.Nonstandardized technique caution device 55 sends alarm signal according to the start-up control signal of wireless controller 4, the alarm signal of nonstandardized technique caution device 55 is fixedly luminous pattern and/or the dynamic light-emitting image and the sound that are made of dot matrix, according to the different alarm signal of control signal demonstration of wireless controller.
Vehicle is in high-speed motion, and on highway, vehicle average velocity is all more than 90 kilometers/hour, and according to 90 kilometers/hour calculating, then the per second move distance is 25 meters; Even Vehicle Speed is at 50 kilometers/hour, the move distance of per second vehicle is greatly about about 14 meters, and people's reaction time adds that the time of taking measures the longlyest may need 1～2 second, adds the inertia distance after the brake, like this, the safe early warning distance needs more than 80 meters at least.If do not have early warning under the low visibility condition since visual safe early warning distance be shortened and can't adopt an effective measure, so the traffic safety accident overwhelming majority is a rear-end collision under the low visibility condition, that is to say that motor vehicle is in the process of moving because the visibility reduction, the safe prediction lead shortens or disappears, distance is too short when finding front truck, thereby has little time to take measures to cause the generation of traffic hazard usually.For these reasons, under the low visibility condition, want the support vehicles safety traffic or provide effective guiding to vehicle, then need under visual condition, provide the safe early warning that is no less than 100 meters distance to vehicle, road profile is provided and moves towards guide also will for simultaneously the vehicle in travelling, when in the vehicle ' process, if rear end collision being arranged, need provide effective proximity warning information to the vehicle driver.
Under the low visibility condition, detect the current of vehicle by vehicle passing detection sensor 2, behind vehicle passing detection point, start active illuminating guiding device 5 immediately and send diversification warning mark signal.Active illuminating guiding device 5 the vehicle monitoring point have vehicle by the time light a red warning mark band that is no less than 100 meters immediately, this redness warning mark band is made up of the caution light that wireless numerical control protuberant guide post 51 and wireless numerical control profile mark 52 send red flicker, make the vehicle 100 meters long redness light belt of warning in tow behind car seemingly in travelling, the vehicle that its prompting is travelled subsequently has vehicle in 100 meters forwardly.In this caution process, the anti-collision early warning device 54 of special configuration points out follow-up vehicle to note avoiding rear crash event in diversification alarm modes such as figure, literal, sound again.If the road surface traffic hazard takes place or blocks up, mark 53 induction signs that send are induced in wireless numerical control, prompting the place ahead accident and the nearest outlet of bulletin as requested.
Embodiment low-visibility road traffic guiding method program circuit is referring to Fig. 1～Fig. 4.
1, requiring to start 1 pair of environment visibility of visibility detection instrument according to host computer or manual control surveys, when visibility detection instrument 1 detects when being reduced to threshold value under the road visibility, detect and be lower than 500 meters daytime, be lower than 800 meters visibility evening, divide fourth gear visibility state processing.State one, when visibility daytime between 500～300 meters, referring to Fig. 1, start vehicle passing detection sensor 2 and anti-collision early warning device 54, roll display " low visibility, Reduced Speed Now " night in the time of 800～600 meters; State two, when visibility daytime between 300～200 meters, referring to Fig. 2, start vehicle passing detection sensor 2 and anti-collision early warning device 54 night in the time of 600～300 meters, switch to show that big character " slows down, goes slowly "; State three, when visibility daytime between 200～100 meters, referring to Fig. 3, start vehicle passing detection sensor 2 and anti-collision early warning device 54 night in the time of 300～150 meters, switch to show " slow down, go slowly "; State four, be lower than 100 meters daytime when visibility, when being lower than 150 meters night,, start vehicle passing detection sensor 2 and anti-collision early warning device 54, switch and show " danger is gone slowly " referring to Fig. 4.
2, vehicle passing detection sensor 2 detects the current of vehicle, and when check point was found to have vehicle to pass through, the information that vehicle passing detection sensor 2 will have vehicle to pass through sent to These field control modules 3.
3, after These field control modules 3 receives the information of vehicle passing detection sensor 2, require to be transmitted to wireless controller 4 behind the coding according to visibility numerical value and startup in real time again.
4, wireless controller 4 receives transmitter trigger control signal after the information of These field control modules 3, starts active illuminating guiding device 5.
5, after active illuminating guiding device 5 receives the start-up control signal of These field control modules emission, behind vehicle pass-through, form a light-emitting caution colored belt along the vehicle pass-through route.State one is lighted wireless numerical control protuberant guide post 51 and wireless numerical control profile is marked 52 red alarm signals, and flicker is at a slow speed lighted the boot flag that device 55 is warned in nonstandardized technique, simultaneously referring to Fig. 1.State two, light wireless numerical control protuberant guide post 51 and wireless numerical control profile is marked 52 red alarm signals, the middling speed flicker is lighted the boot flag of nonstandardized technique caution device 55, simultaneously referring to Fig. 2.State three, light wireless numerical control protuberant guide post 51 and wireless numerical control profile is marked 52 red alarm signals, the boot flag of nonstandardized technique caution device 55 is lighted in the middling speed flicker simultaneously, and anti-collision early warning device 54 shows " danger ", referring to Fig. 3.State four, light wireless numerical control protuberant guide post 51 and wireless numerical control profile is marked 52 red alarm signals, the boot flag of nonstandardized technique caution device 55 is lighted in fast blink simultaneously, and anti-collision early warning device 54 shows " danger ", referring to Fig. 4.
6, when vehicle passes through next check point, whether this check point also has vehicle to pass through, if no vehicle passes through, state one and state two are closed affiliated wireless numerical control protuberant guide post 51 of this check point and wireless numerical control profile mark 52, promptly close the tail demonstration; State three and state four are closed affiliated wireless numerical control protuberant guide post 51 of this check point and wireless numerical control profile mark 52, promptly close tail and show, anti-collision early warning device 54 switches demonstration " deceleration is gone slowly ".If there is vehicle to pass through, then return " program 5 ".
Among Fig. 4,, light the floor outlet boot flag, light wireless numerical control and induce mark 53, demonstrate the message breath or carry out according to last level controlling system requirement when low visibility during in 30 meters or other predetermined value.
Active illuminating guiding device 5 duties are adjusted according to road traffic condition, wherein displaying contents, display mode all can be provided with by software, for example descend fast at short notice detecting visibility, promptly during the group's of being commonly called as mist, can shift to an earlier date 1000～2000 meters and start early warning.The above-mentioned course of work is described and is only embodied a kind of in the multiple mode of operation.
Application example:
This application example is the express highway section employing low-visibility road traffic guiding method of the present invention at 100 kilometers, and configuration one cover low-visibility road traffic guiding system carries out road traffic guiding.
The special-purpose visibility detection instrument of the VJC type road traffic that is specifically designed to highway, water transportation that application example visibility detection instrument 1 uses Hangzhou great achievement public safety Engineering Co., Ltd of BDCom to produce, on road, a visibility detection instrument 1 is installed, These field control modules 3 of same check point configuration every 1～5 kilometer.According to per 100 meters a vehicle passing detection sensor 2 is set on the way.The intelligent control module that These field control modules 3 is made up of the one-chip CPU processor, the startup of low-visibility road traffic guiding system can be to be started automatically by programmed control when detecting low visibility by visibility detection instrument 1, also can be to manually boot under manual control.The processor that conventional single-chip microcomputer is formed just can be finished the state recognition management work that should use the required execution of example.Except the flow process of execution work be custom-designed, its circuit and composition belong to conventional known technology.
Every 8～12 meters a wireless numerical control protuberant guide post 51 is set along the line at road, the wireless numerical control railway spike of TWA-2 type that wireless numerical control protuberant guide post 51 uses Hangzhou great achievement public safety Engineering Co., Ltd of BDCom to produce, this is wireless, and the numerical control railway spike can at any time start or close under host computer or These field control modules 3 controls, and can change caution glow color and brightness, flash color can be self-defined, the color of acquiescence is red and yellow, the red high brightness that adopts shows, brightness can be with the environmental change adjustment, and has to focus on and point to display capabilities.8～12 meter amperes are adorned a wireless numerical control profile mark 52 at interval on road guard, and wireless numerical control profile mark 52 is installed at interval with wireless numerical control protuberant guide post 51 dislocation, can see a controlled telltale every 4～6 meters like this.Wireless numerical control profile mark 52 uses identical coded sequence and identical control address section with wireless numerical control protuberant guide post 51, accepts the wireless control signal of same frequency.According to vehicle passing detection sensor 2 positions controlled wireless numerical control protuberant guide post 51 and wireless numerical control profile mark 52 are organized into groups, when vehicle passing detection sensor 2 detection distances are 100 meters, the wireless numerical control profile mark 52 of 8～12 wireless numerical control protuberant guide posts 51 and equal number is enrolled a control address, be called a marshalling.Each wireless numerical control protuberant guide post 51 and wireless numerical control profile that starts a marshalling marked 52 o'clock, and it lights distance is about 100 meters.The wireless numerical control profile mark of the OWA-1 type that wireless numerical control profile mark 52 uses Hangzhou great achievement public safety Engineering Co., Ltd of BDCom to produce.The YDC series anti-collision early warning device that anti-collision early warning device 54 uses Hangzhou great achievement public safety Engineering Co., Ltd of BDCom to produce, its various models are fit to different road conditions requirements respectively.
When vehicle passes through, vehicle passing detection sensor 2 sends to These field control modules 3 with detected vehicle by information, These field control modules 3 requires to be transmitted to wireless controller 4 behind the coding according to visibility numerical value and startup in real time, wireless controller 4 transmitter trigger control signals, light behind the monitoring point to, promptly the wireless numerical control protuberant guide post 51 of a marshalling of contrary vehicle direct of travel and wireless numerical control profile mark 52, also can light a plurality of marshalling signals as requested, when vehicle enters next monitoring point, this monitoring point is in wireless numerical control protuberant guide post 51 that starts this marshalling and wireless numerical control profile mark 52, vehicle sent to on-the-spot control module 3 by signal and after These field control modules 3 is transmitted to the monitoring point, promptly go up a monitoring point, if the back to the monitoring point do not have during this period vehicle by close the wireless numerical control protuberant guide post 51 of its control, wireless numerical control profile mark 52 and other telltales.So just can make vehicle back in travelling have 100 meters the red warning tape of being no less than of a dynamic change to follow vehicle and advance all the time.The native system service condition is when low visibility during in threshold value, is higher than that native system quits work when starting to control threshold value.
Vehicle in travelling is not only arranged on the dynamic road, also having to die needs the vehicle of parking, can simply realize expectation by detection technique and zero clearing to standing vehicle, when next check point passed through, can think did not have vehicle to stop in this section to previous in other words vehicle passing detection sensor 2 detected vehicles.Use other detection techniques that the detection of various occupying-road vehicles is had description in the applicant's Chinese patent application 200710156647.3 " roads traffic collision early warning device ".If detect the vehicle of road occupation for parking then red warning mark will can not extinguish, to warn vehicle afterwards, to use built-in instruction public address system by the voice suggestion vehicle afterwards that amplifies simultaneously, during possible flase drop survey and will recover just often whole zero clearings in visibility.
Anti-collision early warning device 54 according to sensor to information provide suitable information indicating, because the multiple information alarm function that anti-collision early warning device 54 has sound, light, figure, literal, can start different early warnings respectively according to guiding needs and visibility class, concrete operations are in the application example:
The threshold value that I, low visibility guidance system start by day is that to be equal to or less than the threshold value that 500 meters, evening start be that visibility is less than or equal to 800 meters to visibility, the dot matrix display device roll display that start on the anti-collision early warning device 54 this moment " underspeeds; safe driving ", starts all sensors simultaneously and detects vehicle pass-through and stop situation on the road.
II, visibility approximate 400～200 meters, evening daytime when approximating 600～300 meters, start the dot matrix of anti-collision prewarning apparatus 54 and dodge slowly to switch and light signal language and " slow down, go slowly ", light 8 seconds, went out 1 second.Wireless numerical control protuberant guide post 51 shows that yellow per minute synchronously dodges for 70 times slowly, and wireless numerical control profile is marked 52 synchronous workings, shows road profile and trend.
III, visibility are less than or equal to 200 meters～100 meters, evening daytime when being less than or equal to 300 meters～150 meters, the flicker of dot character middling speed, promptly light 5 seconds, stopped 1 second, light the caution symbol, switch and show that big character " slows down, goes slowly ", light wireless numerical control protuberant guide post 51 and wireless numerical control profile mark 52,250 flickers of per minute.
IV, visibility are less than or equal to 100 meters, evening daytime and are less than or equal to 150 meters and when not having early warning, wireless numerical control profile is marked 52 quickflashings, 250 flickers of per minute, mark 53 quickflashings, 250 flickers of per minute are induced in wireless numerical control, during no early warning anti-collision early warning device 54 triangle warning marks dodge slowly, per minute 70 times, switch the big character of demonstration and " slow down, go slowly ", wireless numerical control protuberant guide post 51 amber lights are lighted quickflashing, per minute 250 times.
V, visibility are equal to or less than 100 meters or when early warning is arranged, there is early warning to be meant in detecting area, to have automobile low-speed to travel or stops caution, anti-collision early warning device 54 symbol quickflashings, literal show " danger is gone slowly ", wireless numerical control protuberant guide post 51 redness are lighted and quickflashing, wireless numerical control profile is marked 250 quickflashings of 52 per minutes flicker, treat that the next stop receives vehicle by behind the signal, return to aforementioned " IV ", perhaps according to the real-time numerical value change of visibility.
VI, when low visibility during in 30 meters, anti-collision early warning device 54 shows the shuntings sign, wireless numerical control induces mark 53 to start to show outlet.
Effective guiding under the low visibility condition, at first the measure that must take is to increase the precognition distance of motor vehicle driving personnel to the place ahead road conditions.Warn adopt among the present invention the back car and use active illuminating to show road profile and form the motor-driven vehicle going tail, the mode that is the motor vehicle trend realizes increasing to human pilot under the low visibility condition purpose of precognition distance, so that obtain enough safe driving spacing distances under the low visibility condition.Adopt the active illuminating device to make the vehicle that travels carry tangible operation tail, this active illuminating device can be protuberant guide post, the profile mark that meets existing standard and active illuminating, it also can be non-target active illuminating device, these devices are series arrangement under short condition at interval, can make the back car clear, effectively find and discern, judge safe driving information accurately, as the active illuminating device of tail even can use the display device of band literal or symbol to form, like this can be clearer and more definite convey a message to human pilot.
Claims (10)
1. low-visibility road traffic guiding method, it is characterized in that: mounting vehicle is by detecting sensor, visibility detection instrument, These field control modules and wireless controller on road, and active illuminating guiding device is set, the program circuit of this road traffic guiding method is:
A, use visibility detection instrument are surveyed road visibility, when the visibility detection instrument detects the road low visibility in threshold value, start vehicle passing detection sensor;
B, vehicle passing detection sensor detect the current of vehicle, after vehicle passing detection sensor detects the information that vehicle passes through, send to These field control modules;
After c, These field control modules receive the information of vehicle passing detection sensor, require coding and real-time visibility numerical value to be transmitted to wireless controller according to starting again;
D, wireless controller receive transmitter trigger control signal after the information of These field control modules, start active illuminating guiding device;
After e, active illuminating guiding device receive the start-up control signal of These field control modules emission, behind vehicle pass-through, form a light-emitting caution colored belt along the vehicle pass-through route.
2. low-visibility road traffic guiding method according to claim 1, it is characterized in that: described active illuminating guiding device is wireless numerical control protuberant guide post, wireless numerical control profile mark, mark is induced in wireless numerical control, the anti-collision early warning device, a kind of in the nonstandardized technique caution device, or two or more combinations, described light-emitting caution colored belt is a diversification warning mark signal, it is the caution light belt, induction sign, the figure alarm signal, the literal alarm signal, a kind of in the sound alarm signal, or two or more compositions, described caution light belt is made of the red passage of scintillation light that wireless numerical control protuberant guide post and wireless numerical control profile mark send, described induction sign is that wireless numerical control induces mark to send described figure alarm signal, the literal alarm signal, the sound alarm signal is that anti-collision early warning device and nonstandardized technique caution device send.
3. low-visibility road traffic guiding method according to claim 2 is characterized in that: described wireless numerical control protuberant guide post and wireless numerical control profile mark are according to start-up control unblanking and the conversion work Show Color and the variation flicker frequency of wireless controller.
4. according to the described low-visibility road traffic guiding method of claim 2, it is characterized in that: described wireless numerical control induces mark to send induction sign according to the start-up control signal of wireless controller, described induction sign is fixedly figure and/or the dynamic image that is made of dot matrix, and dynamic image shows different induction informations according to the control signal of wireless controller.
5. low-visibility road traffic guiding method according to claim 2, it is characterized in that: the different sensor of described anti-collision early warning device configuration, adapt to the early warning requirement of different road traffics respectively, the anti-collision early warning device sends different early warning figure and information warning according to the start-up control signal of wireless controller.
6. low-visibility road traffic guiding method according to claim 2, it is characterized in that: described nonstandardized technique caution device sends alarm signal according to the start-up control signal of wireless controller, described alarm signal is fixing one or more signals in luminous pattern, dynamic light-emitting image, the sound, described dynamic light-emitting image is made of dot matrix, and described nonstandardized technique caution device shows different alarm signals according to the control signal of wireless controller.
7. according to claim 3 or 4 or 5 or 6 described low-visibility road traffic guiding methods, it is characterized in that: it is along the line that described wireless numerical control protuberant guide post and the interval setting of wireless numerical control profile mark are installed in road, described wireless numerical control induces mark to be installed in road bifurcated or exit, described anti-collision early warning device is used for highway low visibility anti-collision early warning and road traffic stain, blind spot accident prevention and early warning, it is along the line that the anti-collision early warning device is installed in road, and the configuration space distance is according to minimum operation visibility and road condition setting.
8. low-visibility road traffic guiding method according to claim 7 is characterized in that: described visibility detection instrument is installed one every 1～5 kilometer along the line at road.
9. low-visibility road traffic guiding method according to claim 8, it is characterized in that: described These field control modules is used by communication interface, wireless module, the processor of tape program control, the field control assembly that power supply is formed, and These field control modules is installed in the mounting points of visibility detection instrument.
10. low-visibility road traffic guiding method according to claim 9, it is characterized in that: described wireless controller uses the length of being made up of the wireless control module of classification apart from the classification wireless energy control units, this wireless controller adopts the low-power wireless module of classification, take the form of the wireless or wireless commentaries on classics radio relay communication of wired commentaries on classics to realize wireless coverage to big zone, described wired commentaries on classics radio relay communication form is that digital radio transmitter module by a frequency is as local control module, use wired control of Electric potentials interface or RS-485 interface to receive upper steering order, described wireless commentaries on classics radio relay communication form uses the digital radio transmitter module of a frequency as local control module, be responsible for controlled plant management in the local areal coverage, the digital radio receiver module that uses another frequency receives from upper steering order as upper control interface.
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