CN108573603A - A kind of intelligence rear-end warning system - Google Patents
A kind of intelligence rear-end warning system Download PDFInfo
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- CN108573603A CN108573603A CN201810391252.XA CN201810391252A CN108573603A CN 108573603 A CN108573603 A CN 108573603A CN 201810391252 A CN201810391252 A CN 201810391252A CN 108573603 A CN108573603 A CN 108573603A
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- vehicle
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0125—Traffic data processing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
- B60Q9/008—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling for anti-collision purposes
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/16—Anti-collision systems
- G08G1/161—Decentralised systems, e.g. inter-vehicle communication
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/16—Anti-collision systems
- G08G1/166—Anti-collision systems for active traffic, e.g. moving vehicles, pedestrians, bikes
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
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- Mechanical Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Traffic Control Systems (AREA)
Abstract
The present invention discloses a kind of intelligent rear-end warning system, including master control set (1), information collecting device (2), range unit (3), display device (5), acoustic-optic alarm (6) and communication device (4).Information collecting device (2) is for acquiring this vehicle speed, vehicle flowrate and weather conditions information, range unit (3) for monitoring the distance between front vehicle and this vehicle, relative velocity and relative angle in real time, master control set (1), which is used to collect the data come to information collecting device (2), range unit (3), carries out analyzing processing judgement, then command signal is transmitted to display device (5), acoustic-optic alarm (6), to realize " three sections " warning function.The intelligence rear-end collision prevention early warning system acquires vehicle speed, vehicle flowrate and weather conditions information in real time by information collecting device (2), from Initiative Defense, compensates for the deficiency of current social automobile active safety configuration, with at low cost, the advantages that precision is high, and setting is flexible, and stability is good.
Description
Technical field
The present invention relates to a kind of intelligent rear-end warning systems, more particularly, to a kind of intelligence that can realize three sections of warning functions
Rear-end warning system.
Background technology
As China's automobile quantity is continuously increased, traffic accident occurs quantity and remains high always, causes a large amount of personnel
Injures and deaths and economic loss.Especially it is worth of people's attention being that in many traffic accidents, rear-end collision is most common traffic
One of accident, in occupation of very high ratio in traffic accident.In the statistics of traffic accidents of China in recent years, rear-end collision
Accident has been more than 30%, caused by property loss and casualties account for 60% always damaged.The master that rear-end collision collision occurs
Want the reason is that due to driver's distraction cause vehicular gap is too small, braking not in time, and it is bad in environmental aspect
Under the conditions of easily occur.Therefore, it is necessary to a kind of intelligent apparatus, prevention knocks into the back and is knocked into the back, and eliminates the safety under driving conditions
Hidden danger, the generation to avoid traffic accident improve human life's safety.
As Chinese patent (CN201720900985.2) provides a kind of automobile anti-rear end collision intelligent early-warning control device, the dress
The speed for measuring back car by rear tachymeter is set, is compared with this vehicle speed, and then obtain safe distance, then lead to
Later rangefinder measures the distance between two vehicles, decides whether to warn by the comparison of measured value and safe distance data, this kind report
Alert condition has higher accuracy, can effectively prompt back car, prevent the phenomenon that knocks into the back；And pass through preceding velometer
The speed for measuring front vehicles is compared with this vehicle speed, obtains safe distance, two vehicles that current rangefinder is measured it
Between distance be less than safe distance by control automobile rear-end device and throttle valve device, automatically control the speed of automobile,
Prevent the phenomenon that knocks into the back；But the device can not accurately perceive vehicle flowrate and the weather conditions in surrounding section, it cannot be to speed
Degree is controlled well.
The automatic driving vehicle of still other on the market mostly uses greatly installs corresponding sensor to perceive vehicle on vehicle
Ambient enviroment, and according to obtained road, vehicle location and obstacle information is perceived, steering and the speed of vehicle are controlled,
However can there are problems that detecting dead angle by sensor detection, signal is not detected so as to cause detection inaccuracy or,
It can not ensure the safety traffic of vehicle.
Invention content
In response to the problems existing in the prior art, the purpose of the present invention is to provide intelligent road rear-end warning systems, pass through
Cost can not only be reduced by monitoring speed, vehicle flowrate and weather conditions in real time using the situation of change of photovoltaic panel power on signal, also be subtracted
Lack hardware facility, while can have been realized using master control set and be alarmed stage by stage, improves the safety of driving.
To achieve the above object, the technical solution adopted by the present invention is：
A kind of intelligence rear-end warning system is suitable for photovoltaic highway, including master control set, information collecting device, ranging dress
It sets, display device and acoustic-optic alarm, it is characterized in that：Wherein described information harvester for acquire in real time this vehicle speed,
Information of vehicle flowrate and weather conditions, and the data of acquisition are sent to master control set；Range unit for monitoring rear vehicle in real time
With the distance between this vehicle, relative velocity and relative angle, and the data of acquisition are sent to master control set；Display device
For showing weather conditions, this vehicle speed, relative velocity, relative angle, rear car distance and safe condition；Acoustic-optic alarm
For executing anti-early warning of knocking into the back, rear windshield subtitle is reminded and to this vehicle driver's sound prompt function；Master control set is used for letter
It ceases harvester and range unit collects the data come and carries out analyzing processing judgement, command signal is then transmitted to display dress
It sets, acoustic-optic alarm, to complete the control to entire intelligent rear-end collision prevention early warning system.
The photovoltaic panel can travel the setting photovoltaic panel of demand constant spacing according to vehicle on road so that information is adopted
Collect travel speed, information of vehicle flowrate and the weather conditions of module collection vehicle.
Described information harvester includes electric signal monitoring unit, timing unit, and described information harvester is configured in light
In the photovoltaic panel for lying prostrate highway, for monitoring Vehicle Speed, vehicle flowrate and weather conditions in real time.
The range unit uses radar range finding or camera system ranging, and when using radar range finding, the radar is surveyed
Away from ultrasonic radar, laser radar or millimetre-wave radar can be used.
Specifically, the master control set includes data receipt unit, data transmission unit.The data receipt unit is used
In the data information that arrives for receiving information collecting device acquisition, the data transmission unit is transmitted to display dress for command signal
It sets and acoustic-optic alarm.
The main control unit is configured as the duration changed based on the photovoltaic panel power on signal and the photovoltaic
The spacing at plate both ends determines the travel speed of vehicle；
The main control unit includes counter, and the counter is configured as the primary change based on photovoltaic panel power on signal
Change process counts primary.
The electric signal monitoring unit is used to monitor voltage, electric current, power, the electricity etc. in photovoltaic panel.
The change in electric that the electric signal monitoring unit monitors can by the variation of the output power of every piece of photovoltaic panel Lai
It indicates, the output power changes the corresponding duration and monitored by the timing unit；Set the specified of monolithic photovoltaic panel
Power is W, and the spacing of transfer efficiency η, the opposite end of monolithic photovoltaic panel are L, passes through the monolithic light when no vehicle travels
When lying prostrate plate, the output power W1=W* η of the monolithic photovoltaic panel are described when there is vehicle traveling by the monolithic photovoltaic panel
Initiating terminal of the front part of vehicle Jing Guo the monolithic photovoltaic panel, the output power W1 start to continuously decrease, until the vehicle
Front reaches the end of the monolithic photovoltaic panel, and the output power bottoms out W2, and the output power drops to W2 from W1
Time be T1, keep the output power in W2 ever since, until vehicle tail traveling leaves the monolithic photovoltaic
The initiating terminal of plate, the time that the output power is maintained at W2 is T2, and the output power starts to gradually rise, until W1, this
Shi Suoshu vehicle tails, which travel, leaves the end of the monolithic photovoltaic panel, and the time that the output power is increased to W1 from W2 is
T1；The data that the electric signal monitoring unit and timing unit monitor are sent to the master control set.
The photovoltaic panel is under persistently unobstructed illumination, and the electric signal obtained is stable, and output power is also
Stable, the output power reduces, and the intensity of illumination in the photovoltaic panel also reduces, and the output power increases, the light
Intensity of illumination on volt plate also increases；When monitoring that the output power of all photovoltaic panels in specified section reduces, can sentence
It is disconnected to show that the intensity of illumination in the specified section also reduces, according to the contrast relationship of intensity of illumination and weather conditions, obtain institute
State the weather conditions in specified section.
Specific information collecting device monitoring Vehicle Speed and the process of weather conditions are：When vehicle is in one piece of photovoltaic
When being driven through on plate, the electric signal monitoring unit being set in the photovoltaic panel monitors change in electric, the electric signal
Experience is gradually decrease to minimum value from stationary value and is then gradually risen from minimum value to the stationary value, the timing unit prison
Measure electric signal be gradually decrease to the time of minimum value from stationary value, electric signal remain minimum value time and electric signal from
Minimum value is increased to the time of stationary value, wherein the time that electric signal is gradually decrease to minimum value from stationary value is equal to electric signal
It is gradually risen from minimum value to the time of stationary value, the interval at the photovoltaic panel both ends is pre-stored in the main control unit, institute
Main control unit is stated according to speed formula, is obtained by the interval calculation of change in electric duration and the photovoltaic panel both ends
Go out the travel speed of vehicle；It analyzes to obtain multiple photovoltaics also according to the change in electric in multiple photovoltaic panels in main control unit
The intensity of illumination variation in section where plate, then changes to obtain the weather conditions in the section according to the intensity of illumination.
Specifically the process of information collecting device acquisition information of vehicle flowrate is：When vehicle drives through one piece of photovoltaic panel,
The electric signal monitoring unit monitor photovoltaic panel power on signal experience from stationary value be gradually decrease to minimum value then from
The minimum value gradually rises to the process of the stationary value, alternatively, the electric signal monitoring unit monitors the photovoltaic panel
And the electric signal in the photovoltaic panel of two pieces of the left and right adjacent with the photovoltaic panel undergoes from stationary value and is gradually decrease to minimum value
Then it is gradually risen from the minimum value to the process of the stationary value, then the counter is based on telecommunications in the photovoltaic panel
Number one-shot change process count it is primary, alternatively, the counter is based on the photovoltaic panel and two blocks of left and right light adjacent thereto
The one-shot change process for lying prostrate the electric signal on plate counts once.And then count the information of vehicle flowrate in the section.
Further, when the electric signal monitoring unit monitors adjacent photovoltaics multiple all around in the same period
Electric signal on plate, which is undergone, to be gradually decrease to minimum value from stationary value and then is gradually risen from the minimum value to the stabilization
The process of value, then change in electric process at this time is not caused by being passed through by vehicle, and the counter is without counting.
The road early warning system further includes communication device, is the system in the case where rear car is also equipped with the communication device
It can will be prompted to signal simultaneously and be sent to other side, front vehicle is prompted to pay attention to keeping safe distance, regulation speed.
The early warning system further includes electric power controller, for powering to other each devices.
Described information harvester and the data of range unit acquisition are analyzed calculation processing through the master control set and are made
Operational order, the operational order are divided into three phases：First stage, when front vehicle and this vehicle distance reach early warning distance
And relative velocity lights rear red LED early-warning lamp prompt front vehicle when being more than zero；Second stage, when front vehicle is ignored
Pre-warning signal continue close to reach warning apart from when, the LED light can be changed into flicker state by system, while be kept out the wind after lighting
Dot matrix on glass replaces flash caution word, to prompt front vehicle；Phase III, when front vehicle enters risk distance
When, system can become the background color of the information display screen of cockpit while accelerating LED warning lamps and dot matrix flicker frequency
Eye-catching red simultaneously pays attention to front vehicle by voice prompt this vehicle driver, so as to take corresponding precautionary measures in time.
The early warning distance, warning distance and/or risk distance can be manually set.
A kind of anti-method for early warning that knocks into the back of intelligent road, it uses the intelligence of any one of above-mentioned technical proposal to prevent knocking into the back
Early warning system, it is characterized in that：Rear-end collision prevention early warning system carries out Initialize installation when being switched on, and voice broadcast " welcomes to use intelligence
Rear-end collision prevention early warning system can be pretended " content；Then information collecting device acquires this vehicle speed, vehicle flowrate and weather conditions；Ranging
Device monitors the distance between front vehicle and this vehicle and relative velocity data signal and relative angle information in real time；Master control set
The data come are collected to information collecting device and range unit and carry out analyzing processing judgement, command signal is then transmitted to display
Device, acoustic-optic alarm, to complete the control to entire intelligent rear-end collision prevention early warning system.
Compared with prior art, the beneficial effects of the invention are as follows：(1) by the information collecting device in photovoltaic panel to traveling
Speed, vehicle flowrate and the weather conditions of vehicle are monitored in real time, are eliminated additional hardware monitoring equipment, are reduced speed
Monitoring cost, and travel speed, vehicle flowrate and the weather conditions of energy accurate measurements vehicular traffic, and improve vehicle monitoring
Concealment and validity；(2) data such as the distance between two vehicles and relative velocity are acquired by range unit to be handled
Judge, Initiative Defense, rear and voice prompt this vehicle driver is warned by taillight, and using three sections of anticipation methods to rear vehicle
And this vehicle driver make and giving warning in advance, to ensure occupant's safety, prevent the generation of rear-end collision, practical value high.
For the present invention as automobile safety early-warning system, it is the increased security configuration of new car to be applicable to car manufactures, also can be used as vapour
It is the safety pre-warning system that user is installed additional with quotient；System cost is low, excellent performance, and integrated level is high, is easily installed, businessman and client
It is all easily accepted by, market promotion prospect is good.
Description of the drawings
Fig. 1 is a kind of intelligent rear-end warning system block diagram of the present invention；
Fig. 2 is information collecting device block diagram in a kind of intelligent rear-end warning system of the present invention；
Specific implementation mode
Below in conjunction with the attached drawing in the present invention, the technical solution of the present invention is clearly and completely described, is shown
So, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, all other embodiment that those of ordinary skill in the art are obtained under the conditions of not making creative work, all
Belong to the scope of protection of the invention.
Such as Fig. 1, the present invention relates to a kind of intelligent rear-end warning systems, are suitable for photovoltaic highway, photovoltaic panel is laid on road surface
Lower section, be separated by each track on road surface 5 meters setting be laid with one piece of photovoltaic panel, the early warning system include master control set (i.e.
Master cpu) 1, electric power controller 7, information collecting device 2, range unit 3, it is display device 5, acoustic-optic alarm 6, logical
Several parts such as T unit 4.Range unit in the present embodiment is radar measurement system, and information collecting device 2 is for acquiring this vehicle
The information such as speed, vehicle flowrate and weather conditions (air visibility)；Radar measurement system in real time monitor front vehicle away from
From data-signals such as, relative velocity and relative angles；Display device 5 is mainly used for showing weather conditions, this vehicle speed, opposite
Speed, rear car distance and safe condition (normal, early warning, warning, danger) etc., and when state is " danger ", background color transformation
For eye-catching red；Acoustic-optic alarm 6, which mainly executes, pretends anti-early warning of knocking into the back, the prompting of rear windshield subtitle and is driven to this vehicle
The functions such as the person's of sailing voice prompt；Communication device 4 is in the case where rear car is also equipped with the equipment, and system can will be prompted to letter simultaneously
It number is sent to other side, front vehicle is prompted to pay attention to keeping safe distance, regulation speed；Master control set 1 is used to fill information collection
Set 2 and radar measurement system collect come data carry out analyzing processing judgement, then by command signal be transmitted to display device 5,
Acoustic-optic alarm 6 and communication device 4, to complete the control to entire intelligent rear-end collision prevention early warning system.Electric power controller
7 to other each devices for powering.
Such as Fig. 2, described information harvester 2 includes electric signal monitoring unit 201, timing unit 202, described information acquisition
Device 2 configures in the photovoltaic panel of photovoltaic highway, for monitoring Vehicle Speed, vehicle flowrate and weather conditions in real time.
The master control set 1 is the processing unit of built-in embedded chip, such as Chip Microcomputer A VRmege128；The master control dress
Set includes data receipt unit, data transmission unit.The data receipt unit is for receiving the acquisition of information collecting device 2
Arrive data information, the data transmission unit is transmitted to display device 5 and acoustic-optic alarm 6 for command signal.
The master control set 1 is configured as the duration changed based on the photovoltaic panel power on signal and the photovoltaic panel
The spacing at both ends determines the travel speed of vehicle；
The master control set 1 includes counter, and the counter is configured as the primary change based on photovoltaic panel power on signal
Change process counts primary.
The electric signal monitoring unit 201 is used to monitor voltage, electric current, power, the electricity etc. in photovoltaic panel.
Specifically, the process of testing the speed is：When vehicle drives through in one piece of photovoltaic panel, the master control set 1 is configured
The traveling of vehicle is determined for the spacing of the duration and the photovoltaic panel both ends that change based on the photovoltaic panel power on signal
Speed.In practical applications, the photovoltaic panel is crystal silicon solar plate, and size 2000*1000*35mm, rated power is
The both ends center of 180W, transfer efficiency 80%, photovoltaic panel are equipped with terminal A, B, the distance L=of terminal A to terminal B
2000mm, when no vehicle is travelled by the photovoltaic panel, output power W1=W* η=180*80%=of the photovoltaic panel
140W, when have vehicle traveling by the photovoltaic panel when, the front part of vehicle pass through terminal A, the output power W1 start by
It gradually reduces, until the front part of vehicle reaches terminal B, the output power bottoms out W2, at this point, the photovoltaic panel
It is sheltered from completely by vehicle, the direct irradiation of light can not be obtained, but can be by being radiated at the anti-of the light on adjacent photovoltaic plate
It the indirect light irradiation of acquisitions such as penetrates, scatter, and then being converted to lower output power, W2 is defined as W2=W1* here
10%=14W, the monitoring of the timing unit 202 obtain the output power and drop to the time of W2 from W1 as 0.12S, this is latter
Directly keep the output power in W2, until vehicle tail traveling leaves terminal A, the output power is maintained at W2's
Time is 0.18S, and the output power starts to gradually rise, and until W1, the vehicle tail traveling leaves terminal B at this time, institute
It states output power and is increased to the time of W1 from W2 as 0.12S, according to speed formula v=L/t, the traveling speed of vehicle is calculated
Spend v=60KM/h.
Specifically, monitoring car discharge process is：The counter is configured as the primary change based on photovoltaic panel power on signal
Change process counts primary.When vehicle drives through one piece of photovoltaic panel, the electric signal monitoring unit 201 monitors the light
Volt plate power on signal experience is gradually decrease to minimum value from stationary value and is then gradually risen from the minimum value to the stationary value
Process, alternatively, the electric signal monitoring unit 201 monitors the photovoltaic panel and the left and right adjacent with the photovoltaic panel
Electric signal in two pieces of photovoltaic panels undergo from stationary value be gradually decrease to minimum value then from the minimum value gradually rise to
The process of the stationary value, then one-shot change process counting of the counter based on the photovoltaic panel power on signal is primary, or
Person, one-shot change mistake of the counter based on the electric signal in the photovoltaic panel and two pieces of left and right photovoltaic panel adjacent thereto
Journey counts primary.
Specifically, the process for monitoring weather conditions is：The electric signal monitoring unit 201 monitors the defeated of multiple photovoltaic panels
Go out the variation of power, the intensity of illumination in section where the master control set 1 obtains multiple photovoltaic panels according to the variation of output power
Variation, the light for the common weather that the master control set 1 changes and is stored in the master control set 1 according to the intensity of illumination
According to the intensity table of comparisons, can analyze to obtain the weather conditions in the section.Specifically, the intensity of illumination of the common weather
The table of comparisons includes：The illumination intensity value of fine day is 30000-300000lx, and cloudy illumination intensity value is 3000-10000lx,
It is equivalent to 1%-10% when fine day, illumination intensity value when sunrise sunset is 300lx, is equivalent to 0.1%-1% when fine day,
The illumination intensity value at night is 0.001-0.02lx, is equivalent to 3.3e-9~6.7e-7 when fine day direct sunlight ground.When
In the normal sunshine-duration on daytime, the electric signal monitoring unit 201 monitors total output work of multiple photovoltaic panels in some section
When rate decrease beyond 99.9%, the weather anomaly in the section, in fact it could happen that rainy or foggy weather.The master control set 1 will
The weather conditions situation monitored is sent to display device 5.
A kind of road rear-end collision prevention early warning system of the present invention is respectively completed this by information collecting device 2 and range unit 3
Vehicle information collection and rear car information collection.Information collecting device 2 mainly acquires the information such as weather, this vehicle speed, vehicle flowrate；Afterwards
Vehicle information collecting device 2 mainly monitors front vehicle distance, relative velocity and relative angle etc. in real time by radar measurement system
Data-signal.The information of acquisition is analyzed through system master device 1, calculates, is handled and makes operational order.System command is main
It is divided into three phases：
First stage, when front vehicle reaches early warning range with this vehicle distance and relative velocity is more than zero, system is lighted
Rear red LED early-warning lamp prompts front vehicle；
Second stage, when front vehicle ignore pre-warning signal continue close to reach warning apart from when, system can by LED light turn
At flicker state, while the alternately printed words such as flicker " maintaining safe distance ", " taking care " of the dot matrix on rear seat windscreen are lighted, with
Prompt front vehicle；
Phase III, when front vehicle enters risk distance, system is accelerating LED warning lamps and dot matrix flicker frequency
Meanwhile the background color of the information display screen of cockpit can be become to eye-catching red and paid attention to by voice prompt this vehicle driver
Front vehicle, so as to take corresponding precautionary measures in time.If there are also installed this system for front vehicle, it will receive " you with
Front truck is excessively close, it is noted that maintains safe distance " etc. prompts, reach the anti-function of ensuring safety that knocks into the back.
Certainly, the LED light of different colours can also be arranged to be suitable for the different stages, such as in the first stage in this system
The LED light of point glassy yellow.LED light in second stage point shiny red and flicker.
The distance measuring method being used on automobile at present mainly has supersonic wave short-range from ranging, and laser ranging, camera system are surveyed
Away from, microwave radar long range ranging etc..This system preferentially uses millimetre-wave radar to carry out ranging, and certain present invention can also adopt
Ranging is carried out with other common methods.Such as it can also use and practical millimetre-wave radar ranging is replaced using ultrasonic wave.Ultrasonic wave
The frequency of radiating circuit is set as 40kHz.It constitutes oscillating circuit by time base circuit and peripheral cell, adjusts slide rheostat
Resistance value, thus it is possible to vary frequency of oscillation drives ultrasonic transducer by LM555, launches ultrasonic signal.The ultrasonic wave sent out
It propagates in air, encountering barrier will return, and the signal of return is received by ultrasonic wave receiving circuit.It is received using ultrasonic wave
Element is sent out, can be very good to measure two vehicle spacings.Two vehicle phases can be calculated by two vehicle spacings and ultrasonic transmission/reception time
To speed.
The present invention also provides a kind of anti-method for early warning that knocks into the back of intelligent road：
Initialize installation is carried out when intelligent rear-end collision prevention early warning system booting, voice broadcast " welcomes to pretend anti-chase after using intelligence
Tail early warning system " content, great hommization.After system is opened, the information collecting device 2 in photovoltaic panel is completed to Travel vehicle
Vehicle degree, the vehicle flowrate in the section and the monitoring of weather conditions, rear car information collection part mainly passes through radar measurement system
The data-signals such as monitoring front vehicle distance, relative velocity and angle in real time；Master control set 1 receives described information harvester
With the collected data information of radar measurement system, master control set is analyzed the data of acquisition, calculated and is handled and made
Operational order.When front vehicle and this vehicle distance reach early warning range and relative velocity is more than zero, system is by simulating anti-chase after
Tail custom lights rear red LED early-warning lamp prompt front vehicle；When front vehicle is ignored, pre-warning signal continuation is close to reach alert
Show apart from when, LED light can be changed into flicker state by system, at the same light the dot matrix on rear seat windscreen alternately flicker " keep vehicle
Away from ", the printed words such as " taking care ", to prompt front vehicle；However when front vehicle enters risk distance, system is being accelerated
While LED warning lamps and dot matrix flicker frequency, the background color of the information display screen of cockpit can be become to eye-catching red and led to
It crosses voice prompt this vehicle driver and pays attention to front vehicle, so as to take corresponding precautionary measures in time.
If not detecting above-mentioned three kinds of dangerous informations, vehicle safety passes through.If front vehicle there are also installed this system,
Two vehicles can wirelessly communicate, this vehicle sends signal to rear car in due course, for example " you are excessively close with front truck, it is noted that keeps vehicle for transmission
Away from " etc. prompts, realize the organic communication of two vehicles, reach the anti-function of ensuring safety that knocks into the back.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (9)
1. a kind of intelligence rear-end warning system, is suitable for photovoltaic highway, characterized in that filled including master control set (1), information collection
(2), range unit (3), display device (5) and acoustic-optic alarm (6) are set, wherein
The data of acquisition are sent to by information collecting device (2) for acquiring this vehicle speed, information of vehicle flowrate and weather conditions
Master control set (1)；
Range unit (3) will be adopted for monitoring the distance between front vehicle and this vehicle, relative velocity and relative angle in real time
The data of collection are sent to master control set (1)；
Display device (5) is for showing weather conditions, this vehicle speed, relative velocity, rear car distance and safe condition；
Acoustic-optic alarm (6) is for executing anti-early warning of knocking into the back, the prompting of rear windshield subtitle and to this vehicle driver's voice prompt work(
Energy；
Master control set (1) is used to receive, handle and judge that described information harvester (2), range unit (3) to collect the data of coming
Then command signal is transmitted to display device (5), acoustic-optic alarm (6), to complete to the anti-early warning of knocking into the back of entire intelligence
The control of system.
2. a kind of intelligent rear-end warning system according to claim 1, characterized in that described information harvester (2) wraps
Electric signal monitoring unit (201), timing unit (202) are included, described information harvester (2) configures in the photovoltaic panel of road,
For monitoring Vehicle Speed, vehicle flowrate and weather conditions in real time.
3. a kind of intelligent rear-end warning system according to claim 1, characterized in that the range unit (3) uses thunder
Up to ranging or camera system ranging, when using radar range finding, ultrasonic radar, laser radar can be used in the radar range finding
Or millimetre-wave radar.
4. a kind of intelligent rear-end warning system according to claim 1, characterized in that the master control set (1) is configured
The traveling of vehicle is determined for the spacing of the duration and the photovoltaic panel both ends that change based on the photovoltaic panel power on signal
Speed.
5. a kind of intelligent rear-end warning system according to claim 1, characterized in that the master control set (1) includes meter
Number device, the counter are configured as the one-shot change process based on photovoltaic panel power on signal and count once.
6. a kind of intelligent rear-end warning system according to claim 2, characterized in that the electric signal monitoring unit
(201) it is used to monitor voltage, electric current, power, the electricity etc. in photovoltaic panel.
7. a kind of intelligent rear-end warning system according to claim 1, it is characterized in that：The early warning system further includes communication dress
(4) are set, are in the case where rear car is also equipped with communication device (4), system can will be prompted to signal and be sent to other side simultaneously, prompt
Front vehicle pays attention to keeping safe distance, regulation speed.
8. a kind of intelligent rear-end warning system according to any one of claim 1-7, it is characterized in that：The main control dress
It sets the data of (1) for described information harvester (2) and range unit (3) acquisition and carries out analyzing processing, and make operation
Instruction, the operational order are divided into three phases：
First stage lights rear red when front vehicle reaches early warning distance with this vehicle distance and relative velocity is more than zero
LED early-warning lamps prompt front vehicle；
Second stage, when front vehicle ignore pre-warning signal continue close to reach warning apart from when, system can by the LED light turn
At flicker state, while the alternating flash caution word of the dot matrix on rear seat windscreen is lighted, to prompt front vehicle；
Phase III, when front vehicle enters risk distance, system is accelerating the same of LED warning lamps and dot matrix flicker frequency
When, the background color of the information display screen of cockpit can be become to eye-catching red and rear is paid attention to by voice prompt this vehicle driver
Vehicle, so as to take corresponding precautionary measures in time.
The method for early warning 9. a kind of intelligence knocks into the back, it uses the anti-early warning of knocking into the back of the intelligent road of any one of claim 1-8
System, it is characterized in that：
Rear-end collision prevention early warning system carries out Initialize installation when being switched on, and voice broadcast " welcome using intelligence pretend it is anti-knock into the back it is pre-
Alert system " content；Then
Information collecting device (2) acquires this vehicle speed, information of vehicle flowrate and weather conditions in real time；
Range unit (3) monitors the distance between front vehicle and this vehicle, relative velocity and relative angle data-signal in real time；
Master control set (1) collects the data come to information collecting device (2), range unit (3) and carries out analyzing processing judgement, then
Command signal is transmitted to display device (5), acoustic-optic alarm (6), to complete to entire intelligent rear-end collision prevention early warning system
Control.
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| CN201810391252.XA CN108573603A (en) | 2018-04-27 | 2018-04-27 | A kind of intelligence rear-end warning system |
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| CN201810391252.XA CN108573603A (en) | 2018-04-27 | 2018-04-27 | A kind of intelligence rear-end warning system |
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Application publication date: 20180925 |