CN108806245A - Intelligent transportation system for alleviating congestion and its operation method - Google Patents
Intelligent transportation system for alleviating congestion and its operation method Download PDFInfo
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- CN108806245A CN108806245A CN201810390463.1A CN201810390463A CN108806245A CN 108806245 A CN108806245 A CN 108806245A CN 201810390463 A CN201810390463 A CN 201810390463A CN 108806245 A CN108806245 A CN 108806245A
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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
- G08G1/0108—Measuring and analyzing of parameters relative to traffic conditions based on the source of data
- G08G1/0116—Measuring and analyzing of parameters relative to traffic conditions based on the source of data from roadside infrastructure, e.g. beacons
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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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- 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
- G08G1/0137—Measuring and analyzing of parameters relative to traffic conditions for specific applications
- G08G1/0145—Measuring and analyzing of parameters relative to traffic conditions for specific applications for active traffic flow control
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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
- G08G1/042—Detecting movement of traffic to be counted or controlled using inductive or magnetic detectors
-
- 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
- G08G1/048—Detecting movement of traffic to be counted or controlled with provision for compensation of environmental or other condition, e.g. snow, vehicle stopped at detector
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/065—Traffic control systems for road vehicles by counting the vehicles in a section of the road or in a parking area, i.e. comparing incoming count with outgoing count
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/07—Controlling traffic signals
- G08G1/08—Controlling traffic signals according to detected number or speed of vehicles
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/07—Controlling traffic signals
- G08G1/081—Plural intersections under common control
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
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Abstract
The present invention discloses intelligent transportation system and its operation method for alleviating congestion, the system includes data management module, vehicle monitoring module, weather monitoring module, changeable driveway management module, electronic speed limit display screen and power supply module, Vehicle Speed and section information of vehicle flowrate are monitored in real time by the way that the vehicle monitoring module is layed in photovoltaic road surface, it can effectively monitor whether vehicle drives over the speed limit, and the information of violation vehicle is identified by Radio Frequency Identification Technology, to effectively supervise traffic order；Changeable driveway management module is used to turn left, turn right or keep straight on according to the adaptive change vehicle of crossing congestion situation；Weather monitoring module for monitoring weather conditions in real time, when there are the bad weathers such as sleet, dense fog, haze, data management module can accordingly adjust speed limit index and be shown by the electronic speed limit display screen, it prevents from driving over the speed limit due to bad weather low visibility causes driver not see speed limitation board, to reduce traffic accident.
Description
Technical field
The invention belongs to intelligent transportation field, it is particularly used for alleviating the intelligent transportation system and its operation method of congestion.
Background technology
With the rapid development of modern economy and modern society, traffic also has the safety guarantee problem of carrier slowly
While starting the focus of attention and the breach as modern technologies, the demand with people to traffic administration is slowly got higher,
How the high-new modern technologies such as Computer Subject also communication, microelectronics are used in the monitoring, management and friendship of vehicular traffic
In the control being open to traffic, with ensure traffic safety and driving it is smooth, and then the quality for improving traffic environment have it is critically important
Meaning.
The monitoring of vehicle, management are mainly monitored by the way that the speed limit photo module in roadside is arranged in the prior art
The travel speed of vehicle, to judge whether vehicle exceeds the speed limit, however present vehicle interior can all fill navigation module, when front has
When speed limit photo module, navigation module can prompt car owner to slow down, once having crossed monitoring section, cannot monitor the traveling of vehicle
Speed；And existing the intensive traffic section speed limit index is fixed, however work as and the severe day such as sleet, dense fog or haze occur
When gas, speed limit index and common weather to vehicle are different, and existing the intensive traffic section cannot be according to weather conditions spirit
It is living to change speed limit index, to be easy to cause traffic accident in bad weather.
Often there is traffic congestion in the crossroad of road or T-shaped road junction, left vehicle often occurs in peak period on and off duty
Road congestion is serious, and Through Lane is without vehicle or few vehicle pass-through, so that Through Lane cannot make full use of, and left-lane ten
Crowded phenomenon is divided to occur.
If Chinese patent (application number CN201611029171.2) discloses a kind of tide lane control method, step is：Step
Rapid one, vehicle is identified using the realtime graphic in each track of image acquisition device, and using pattern recognition device, by data
Reason device counts the vehicle flowrate in each track；Step 2, speed measuring device acquire the travel speed of each track vehicle, and by data processing
Device calculates the passage rate in each track；Step 3, when the vehicle flowrate in a direction is higher than vehicle flowrate threshold value, and current rate is less than
When current rate threshold value, master control set controls track change device and changeable driveway is adjusted to direction passage.Such control method
The passage direction of changeable driveway can be adjusted flexibly according to actual conditions, but equipment is complicated, is not easy to implement；
Invention content
In response to the problems existing in the prior art, the purpose of the present invention is to provide the intelligent transportation system for alleviating congestion,
By in road surfacing vehicle monitoring module, hidden being monitored to vehicle, effectively limiting overspeed of vehicle；In the present invention
Weather monitoring module can also monitor weather conditions in real time, and provide corresponding speed limit according to actual weather conditions and prompt, lead to
It crosses electronic speed limit display screen to show, to reduce the traffic accident caused by bad weather；And it is variable in the present invention
Road conditions of the Lane regulation module for detecting crossing in real time can be effectively by variable when a certain track vehicle congestion is serious
Lane regulation module dredges vehicle, alleviates traffic pressure.
To achieve the above object, the technical solution adopted by the present invention is：
Intelligent transportation system for alleviating congestion, including data management module and be electrically connected with the data management module
Vehicle monitoring module, changeable driveway management module, electronic speed limit display screen and the power supply module connect；The data management module is used
In the data information detected by reception, processing, storage and the upload vehicle monitoring module；The changeable driveway management module
For according to the adaptive change track of crossing road conditions, dredging vehicle and turning left, turn right or keep straight on；The electronic speed limit display screen is used
Speed limit reminding is carried out in road pavement vehicle；The vehicle monitoring module include multigroup photosensitive sensor, multigroup ultrasonic sensor,
Photosensitive switch control unit, counting unit, test the speed unit and radio frequency identification unit, and the vehicle monitoring module is laid on road surface,
Road conditions, vehicle flowrate and Vehicle Speed for monitoring section in real time.
The present invention detects air visibility by the photosensitive sensor, and detection data is sent to the data management
Module, the data management module obtains suitable road speed limit index according to the analysis of air visibility, and passes through the electronics
Speed limit display screen is shown；The vehicle monitoring module is used to monitor daily road traffic, speed and traffic information, and will
Monitoring data are sent to the data management module, and the data management module again stores daily information of vehicle flowrate simultaneously
Vehicle supervision department is uploaded to, traffic information includes mainly congestion in road and illegal parking phenomenon, once there is overspeed of vehicle traveling
Or the identity information of car owner and information of vehicles and violation evidence can be sent to traffic by illegal parking, the vehicle monitoring module
Administrative department；The changeable driveway management module monitors crossing road conditions in real time, and when finding that certain lane flow amount is big, congestion is serious,
Changeable driveway can intelligence change clearance direction, play in time dredging traffic, make full use of path resource.
Specifically, the photosensitive sensor/ultrasonic sensor is also associated with timer, starts to count when sensor-triggered
When, the photosensitive sensor converts optical signals to electric signal, when there is vehicle to cross road surface, is located at the photosensitive sensor on road surface
The instantaneous variation that can detect optical signal, when vehicle crosses one group of photosensitive sensor, the unit that tests the speed is according to optical signal wink
Between the distance between time for changing and one group of photosensitive sensor can calculate the length and travel speed of vehicle；The ultrasonic wave
Sensor to upper pavement surface by emitting ultrasonic signal, and when there is vehicle to cross road surface, the ultrasonic sensor can be at once
Reflected ultrasonic signal is received, when vehicle crosses one group of ultrasonic sensor, that is, passes through the unit meter that tests the speed
The length and travel speed of vehicle can be calculated by calculating；When a photosensitive sensor/ultrasonic sensor detects signal transient
When variation, the counting unit remembers a number, to be counted to the vehicle flowrate of road.
Specifically, in multigroup photosensitive sensor/ultrasonic sensor each group set there are two photosensitive sensor/ultrasound
Wave sensor, and the distance between described two photosensitive sensor/ultrasonic sensors are fixed.
Photosensitive sensor/the ultrasonic sensor is used to road pavement vehicle and tests the speed；The photosensitive sensor is also
For measuring air visibility.
Specifically, the photosensitive switch control unit and multigroup photosensitive sensor, multigroup ultrasonic sensor, counting
Unit, the unit that tests the speed electrical connection replace the photosensitive sensor work for controlling the ultrasonic sensor under no light condition
Make；
The alternation of the photosensitive sensor and ultrasonic sensor is realized by the photosensitive switch control unit, both
The monitoring to vehicle can be similarly realized at night, while can also reduce the burden of sensor, avoid working long hours and damaging.
Specifically, the radio frequency identification unit includes the radio-frequency card installed in the car and the reader on road surface, institute is arranged
The information for stating identity information and vehicle that car owner is stored in radio-frequency card, photosensitive sensor/ultrasonic sensor described in every group it
Between be equipped with the reader；
When vehicle crosses one group of photosensitive sensor/ultrasonic sensor, a reader is must travel, if there is vehicle super
Speed traveling, then the reader is the identity information and vehicle that can recognize that car owner by the radio-frequency card read and write in the over-speed vehicles
Information, be not detected to prevent overspeed of vehicle.
Specifically, the data management module includes data receipt unit, data processing unit, data storage cell and number
According to transmission unit；
Specifically, the changeable driveway management module includes power drive unit, Direction Signs lamp and power supply unit, described
Power drive unit is electrically connected with the data processing unit；The power drive unit and the changeable driveway Direction Signs lamp
Electrical connection, the power drive unit are used to drive the direction of changeable driveway Direction Signs lamp；The power supply unit is used to drive
Moving cell and the power supply of Direction Signs lamp；The power drive unit, which utilizes, is based on STM32F105ARM-CORTEX-M3 framework micro-controls
The support in more channels AD of device processed, acquires the output voltage and electric current of signal output module, realizes the Direction Signs lamp of the present invention
The fine galvanic current output detection of driving output, can accurately obtain the real-time current data of Direction Signs lamp, can judge to lead
To the malfunction of identification light, so that technical staff in time repairs the Direction Signs lamp of damage；The Direction Signs lamp
It is arranged above photovoltaic highway crossing, one group of Direction Signs lamp is arranged in each track, and left-lane includes left rotaring signal lamp and straight trip
Signal lamp；Through Lane includes left rotaring signal lamp, straight trip signal lamp and right turn signal lamp；Right-turn lane include right turn signal lamp and
Straight trip signal lamp, each Direction Signs lamp includes lamp body, and straight trip signal lamp, left rotaring signal lamp or right-hand rotation are equipped on the lamp body
Signal lamp, the straight trip signal lamp are connected with straight trip signal control device, and the left rotaring signal lamp is connected with left rotaring signal control
Device, the right turn signal lamp are connected with right turn signal control device, the straight movement control device, left-hand rotation controller and control of turning right
Device is controlled by power drive unit, and corresponding change is made according to road conditions；
Specifically, the intelligent transportation system further includes weather monitoring module, and the weather monitoring module includes that temperature passes
Sensor and humidity sensor；For detecting atmospheric temperature and pavement temperature, the humidity sensor is used for the temperature sensor
Detect atmospheric humidity and pavement humidity, the weather monitoring module is by the monitoring data of the temperature sensor, humidity sensor
It is sent to the data management module in real time.
The data letter that the data receipt unit is used to receive the vehicle monitoring module, weather monitoring module detects
Breath, the data processing unit are used to carry out analyzing processing to the data information received, be calculated according to vehicle monitoring module
Engage in this profession road vehicle flowrate, vehicle traveling speed and section traffic information, and analyzed and obtained in real time according to weather data
Suitable speed limit index；The data storage cell is vaporous for storing rule-breaking vehicle information, daily information of vehicle flowrate and day
Condition information；The data transmission unit sends the rule-breaking vehicle information, daily information of vehicle flowrate and weather conditions information
It is sent to power drive unit in real time to the crossing congestion situation of vehicle supervision department and vehicle monitoring module monitors.
Specifically, the electronic speed limit display screen is arranged in the highway both sides for the electronic speed limit display screen setting
In the highway both sides, the changeable driveway Direction Signs lamp is located at the road intersection, and driver's real time inspection can be facilitated to limit
Fast index and Direction Signs lamp.
Preferably, the intelligent transportation system is applied on photovoltaic highway, and the vehicle monitoring module is laid on photovoltaic road
Face, the electronic speed limit display screen are arranged in the photovoltaic highway both sides and/or photovoltaic road surface, the changeable driveway Direction Signs
Lamp is arranged at photovoltaic highway crossing, and the intelligent transportation system is directly by the storage battery power supply of the photovoltaic highway.
Operation method for the intelligent transportation system for alleviating congestion, includes the following steps：
Step A, air visibility is measured by photosensitive sensor, and Atmosphere temp.and RH and road are measured by weather monitoring module
The data that the photosensitive sensor and the weather monitoring module measure are sent to data management module by face humiture；
Step B, the data management module combination air visibility, Atmosphere temp.and RH and the analysis of road surface humiture obtain phase
The weather conditions answered, and corresponding speed limit index is calculated according to weather conditions, the data management module refers to the speed limit
Mark is sent to electronic speed limit display screen and carries out speed limit reminding；
Step C, by the multigroup photosensitive sensor/ultrasonic sensor, counting unit and the unit that tests the speed that are laid on road surface
Speed, vehicle flowrate and the traffic information of road pavement vehicle measure, and speed, vehicle flowrate and traffic information are sent to data
Management module is stored and is uploaded；
The reading between one group of photosensitive sensor/ultrasonic sensor is arranged when having detected overspeed of vehicle in step D
Device is write by reading the radio-frequency card of installation in the car to obtain the identity information and information of vehicles of violation driver.
Step E, vehicle monitoring module monitor the congestion at photovoltaic highway crossing in real time, and monitoring data are defeated
It is sent to data management module, data management module is analyzed current road conditions, handled, when monitoring crossing vehicle congestion, then
Data management module transmits information to power drive unit, and the finger of changeable driveway Direction Signs lamp is driven by power drive unit
To.
Compared with prior art, the beneficial effects of the invention are as follows：(1) present invention by vehicle monitoring module by being laid on light
Lie prostrate road surface, the concealment and validity of vehicle monitoring can be promoted, by the driving vehicle in Radio Frequency Identification Technology road pavement into
Row identification, can effectively prevent vehicle missing inspection, the present invention can not only accurate measurements road vehicles travel speed, moreover it is possible to it is right
Traffic information carries out accurate control；(2) present invention, can not only be to weather by the way that weather monitoring module is arranged in photovoltaic highway both sides
Situation carries out in real time accurately monitoring, moreover it is possible to change road surface speed limit index according to weather conditions, to reduce because bad weather is led
The traffic accident of cause；(3) present invention replaces road pavement vehicle by photosensitive sensor and ultrasonic sensor and is monitored, not only
Monitoring effect same with daytime can be reached at night, moreover it is possible to prevent sensor from being damaged because working long hours, to ensure
The stability of the vehicle monitoring module；(4) present invention at crossing by being arranged changeable driveway Direction Signs lamp according to crossing vehicle
Congested conditions, changeable driveway can intelligence change clearance direction, play dredging traffic in time, make full use of path resource
Effect.
Description of the drawings
Fig. 1 is intelligent transportation system overall structure block diagram of the present invention for alleviating congestion；
Fig. 2 is data management module structure diagram in the present invention；
Fig. 3 is weather monitoring modular structure block diagram in the present invention；
Fig. 4 is changeable driveway management module structure diagram in the present invention；
Fig. 5 is vehicle monitoring modular structure block diagram in embodiment 1；
Fig. 6 is vehicle monitoring modular structure block diagram in embodiment 2；
Fig. 7 is vehicle monitoring modular structure block diagram in embodiment 3.
In figure：1, data management module, 101, data receipt unit, 102, data processing unit, 103, data storage it is single
Member, 104, data transmission unit, 2, vehicle monitoring module, 201, photosensitive sensor, 202, ultrasonic sensor, 203, photosensitive open
Close control unit, 204, counting unit, 205, test the speed unit, 206, radio frequency identification unit, 207, pressure sensor, 208, weigh
Unit, 209, alarm sounds unit, 2010, electric signal monitoring unit, 2011, timing unit, 3, weather monitoring module, 301, temperature
Spend sensor, 302, humidity sensor, 303, visibility sensor, 4, electronic speed limit display screen, 5, power supply module, 6, variable vehicle
Road management module, 601, power drive unit, 602, Direction Signs lamp, 603, power supply unit.
Specific implementation mode
Below in conjunction with the attached drawing in the present invention, technical scheme of the present invention is clearly and completely described, it is clear that
Described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the implementation in the present invention
Example, all other embodiment that those of ordinary skill in the art are obtained under the conditions of not making creative work belong to
The scope of protection of the invention.
Embodiment 1
As shown in Figs 1-4, the intelligent transportation system for alleviating congestion, including data management module are present embodiments provided
1 and be electrically connected with the data management module 1 vehicle monitoring module 2, weather monitoring module 3, electronic speed limit display screen 4,
Power supply module 5 and changeable driveway management module 6；The data management module 1 is for receiving, handling, storing and uploading the vehicle
Vehicle flowrate, speed, road conditions and meteorological data information detected by monitoring modular 2 and meteorological monitoring modular 3；The meteorological prison
Module 3 is surveyed to be arranged in photovoltaic highway both sides, for monitoring weather conditions in real time and monitoring data being sent to the data management
Module 1, the data management module 1 pass through the electronic speed limit display screen 4 according to the data that the weather monitoring module 3 monitors
Speed limit traveling is carried out to the vehicle in the section to remind；The vehicle monitoring module 2 is laid on photovoltaic road surface, for monitoring institute in real time
State road conditions, vehicle flowrate and the Vehicle Speed in photovoltaic section；The changeable driveway management module 6 is set to photovoltaic highway crossing,
According to the crossing degree of crowding, changeable driveway changes clearance direction in time, plays dredging traffic in time, path resource is made full use of to imitate
Fruit.
Specifically, such as Fig. 5, the vehicle monitoring module 2 includes 201/ multigroup ultrasonic sensor of multigroup photosensitive sensor
202, photosensitive switch control unit 203, counting unit 204, test the speed unit 205 and radio frequency identification unit 206, described multigroup photosensitive
201/ multigroup ultrasonic sensor 202 of sensor is also associated with timer, starts timing when sensor-triggered；
Further, in 201/ ultrasonic sensor 202 of multigroup photosensitive sensor each group set there are two photosensitive biography
201/ ultrasonic sensor 202 of sensor, and the distance between 201/ ultrasonic sensor 202 of described two photosensitive sensors is solid
Fixed L rice, it is assumed that when the headstock of a vehicle passes through one group of 201/ ultrasonic sensor 202 of photosensitive sensor, timer record institute
Time is T1, and when this vehicle integrally passes through 201/ ultrasonic sensor 202 of photosensitive sensor, used in timer
Time is T2, then this vehicle can be calculated by the unit 205 that tests the speed crosses this group of 201/ supersonic sensing of photosensitive sensor
Instantaneous velocity when device 202 is L/T1, length of wagon is (L/T1) * T2+L；
Further, the photosensitive switch control unit 203 is passed with multigroup photosensitive sensor 201, multigroup ultrasonic wave
Sensor 202, counting unit 204, the unit 205 that tests the speed electrical connection, for controlling the ultrasonic sensor 202 under no light condition
It works instead of the photosensitive sensor 201；
Under the conditions of having light (daytime), the photosensitive switch control unit 203 control the photosensitive sensor 201 with it is described
Counting unit 204, the unit 205 that tests the speed electrical connection, and disconnect the ultrasonic sensor 202 and the counting unit 204, test the speed
The electrical connection of unit 205；Under conditions of unglazed (night), the photosensitive switch control unit 203 controls the ultrasonic wave and passes
Sensor 202 is electrically connected with the counting unit 204, the unit 205 that tests the speed, and disconnects the photosensitive sensor 201 and the counting
The electrical connection of unit 204, the unit 205 that tests the speed；The photosensitive sensor 201 is realized by the photosensitive switch control unit 203
With the alternation of ultrasonic sensor 202, the monitoring to vehicle can be similarly realized at night, while sensing can also be reduced
The burden of device avoids working long hours and damaging.
Further, the radio frequency identification unit 206 includes the radio-frequency card installed in the car and is arranged on photovoltaic road surface
Reader is stored with the identity information of car owner and the information of vehicle in the radio-frequency card, and photosensitive sensor 201/ surpasses described in every group
The reader is equipped between sonic sensor 202；
It is realized and is communicated to connect by microwave 5.8GHz frequency ranges between the reader and radio-frequency card, communication distance can reach 8
~30 meters, if there is overspeed of vehicle traveling, the reader is by reading and writing the i.e. recognizable vehicle of the radio-frequency card in the over-speed vehicles
The information of main identity information and vehicle, is not detected to prevent overspeed of vehicle.
Specifically, the data management module 1 includes data receipt unit 101, data processing unit 102, data storage
Unit 103 and data transmission unit 104；The data processing unit 102 is microcontroller, and the data storage cell 103 is hard
Disk.
Specifically, the changeable driveway management module 6 includes power drive unit 601, Direction Signs lamp 602 and power supply list
Member 603, the power drive unit 601 is electrically connected with the data management module 1, and the power drive unit 601 is for driving
Action-oriented identification light 602, the power supply unit 603 electrically connect as its confession with power drive unit 601 and Direction Signs lamp 602
Electricity.The vehicle monitoring module 2 for being laid on photovoltaic road surface monitors the speed of vehicle on each track in current crossing in real time, and speed is less than
1.8km/h is considered as vehicle queue situation, and the road conditions that vehicle monitoring module 2 monitors are transmitted to data management module 1, data management
Module 1 analyzes data, it is found that congestion occurs in current left-lane, and vehicle queue reaches 20m, to data handle concurrent
It send to the power drive unit 601 of changeable driveway management module 6, power drive unit 601 drives Direction Signs lamp 602, will be straight
The straight trip mark of runway is changed to mark, through dredging after a period of time, it is found that congestion occurs in right lane, vehicle queue reaches
15m, then the driving Direction Signs of power drive unit 601 lamp 602, mark of turning right is changed to by the left-hand rotation mark of Through Lane；It is variable
Track monitoring modular 6 can timely processing traffic jam, make full use of path resource.
Specifically, the weather monitoring module 3 includes temperature sensor 301, humidity sensor 302 and visibility sensor
303, the temperature sensor 301 for monitoring road surface and atmospheric temperature, the humidity sensor 302 for monitor road surface and
Atmospheric humidity, the visibility sensor 303 is for monitoring atmospheric visibility.
Specifically, the electronic speed limit display screen 4 setting passes through on the photovoltaic highway both sides or the/photovoltaic road surface
Setting electronic speed limit display screen 4 also can well show speed limit index at night and the lower weather of visibility, avoid
Driver drives over the speed limit because that can not see speed limitation board clearly.
Specifically, the power supply module 5 is electrically connected with the accumulator of the photovoltaic highway, further saves the energy.
Embodiment 2
As shown in fig. 6, the intelligent transportation system for alleviating congestion is present embodiments provided, the area with above-described embodiment 1
It is not, the vehicle monitoring module 2 further includes multiple pressure sensors 207 and weighing unit 208；
Specifically, the pressure sensor 207 is arranged between one group of 201/ ultrasonic sensor 202 of photosensitive sensor,
The weighing unit 208 is weighing circuit, and the pressure sensor 207 is electrically connected with the weighing circuit；When there is vehicle process
When the pressure sensor 207, the weight of the vehicle, while radio frequency identification unit 206 can be calculated in the weighing circuit
It identifies information of vehicles and car owner's identity information, judges whether this vehicle overloads by microcontroller according to vehicle；
Specifically, the vehicle monitoring module 2 further includes the alarm sounds unit 209 of installation in the car, and the alarm carries
Show that unit 209 includes warning light and loud speaker, when monitoring overspeed of vehicle or overload, in the data management module 1
Data transmission unit 104 can send alarm sounds to the alarm sounds unit 209, and the warning light can send out a warning, and described
Loud speaker can prompt the prompt tones such as " you have exceeded the speed limit " or " you have overloaded ".
Embodiment 3
Such as Fig. 7, present embodiments provide a kind of intelligent transportation system applied to photovoltaic highway for alleviating congestion and
Its operation method, difference lies in vehicle monitoring module 2 includes that electric signal monitoring is single in the present embodiment with above-described embodiment 1,2
Member 2010, timing unit 2011, ultrasonic sensor 202, photosensitive switch control unit 203 and radio frequency identification unit 206, it is described
Vehicle monitoring module 2 configures in the photovoltaic panel of photovoltaic highway, for monitoring Vehicle Speed in real time；
Preferable in light intensity, the photosensitive switch control unit 203 controls the electric signal monitoring unit
It is electrically connected with the counting unit 204, the unit 205 that tests the speed, and disconnects the ultrasonic sensor 202 and the counting unit
204, it tests the speed the electrical connection of unit 205；When monitoring vehicle by one piece of photovoltaic panel by the vehicle monitoring module 2, the light
The change in electric of plate and the duration of change in electric are lied prostrate, and the data monitored are sent to the data management module
1, duration and the single photovoltaic of the data management module 1 according to the single photovoltaic panel power on signal variation monitored
The both ends distance computation of plate obtains the travel speed of vehicle；The data management module 1 is according in the multiple photovoltaic panels monitored
Change in electric analysis obtain the multiple photovoltaic panel where section intensity of illumination variation, and become according to the intensity of illumination
Change analysis and obtain the weather conditions in the section, and then obtain the speed limit instruction in the section, and passes through electronic speed limit display screen 4
Speed limit reminding is carried out to vehicle driver；In the case where light intensity is weaker, the photosensitive switch control unit 203 controls institute
It states ultrasonic sensor 202 to be electrically connected with the counting unit 204, the unit 205 that tests the speed, and disconnects the electric signal monitoring unit
2010 are electrically connected with the counting unit 204, the unit 205 that tests the speed；It is realized by the photosensitive switch control unit 203 described
The alternation of electric signal monitoring unit 2010 and ultrasonic sensor 202 can similarly realize the prison to vehicle at night
Control, while the burden of the ultrasonic sensor 202 and electric quantity monitoring unit 2010 can also be reduced, it avoids working long hours and damaging
It is bad.
Specifically, data processing unit 102 includes estimator, described when vehicle drives through in one piece of photovoltaic panel
Estimator is configured as the spacing of the duration and the photovoltaic panel both ends that change based on the photovoltaic panel power on signal come really
Determine the travel speed of vehicle.
Specifically, the electric signal monitoring unit 2010 is used to monitor voltage, electric current, power, the electricity etc. in photovoltaic panel；
Further, when vehicle drives through in one piece of photovoltaic panel, the estimator is configured as being based on the light
The spacing of duration and the photovoltaic panel both ends that plate power on signal changes are lied prostrate to determine the travel speed of vehicle.Actually answering
In, the photovoltaic panel is crystal silicon solar plate, size 2000*1000*35mm, rated power 180W, transfer efficiency
It is 80%, the both ends center of photovoltaic panel is equipped with terminal A, B, the distance L=2000mm of terminal A to terminal B, when no vehicle row
When sailing by the photovoltaic panel, output power W1=W* η=180*80%=140W of the photovoltaic panel are passed through when there is vehicle traveling
When crossing the photovoltaic panel, the front part of vehicle passes through terminal A, and the output power W1 starts to continuously decrease, until the vehicle
Front reaches terminal B, and the output power bottoms out W2, at this point, the photovoltaic panel is sheltered from completely by vehicle, it can not
The direct irradiation of light is obtained, but the indirect illumination of acquisitions such as the reflection, the scattering that are radiated at the light on adjacent photovoltaic plate can be passed through
It penetrates, and then is converted to lower output power, W2 is defined as W2=W1*10%=14W, the timing unit 2011 here
It is 0.12S that monitoring, which obtains the time that the output power drops to W2 from W1, keeps the output power in W2 ever since, until
The vehicle tail traveling leaves terminal A, and the time that the output power is maintained at W2 is 0.18S, and the output power starts
It gradually rises, until W1, the vehicle tail traveling leaves terminal B at this time, and the output power is increased to the time of W1 from W2
The travel speed v=60KM/h of vehicle is calculated, passes through the travel speed of vehicle according to speed formula v=L/t for 0.12S
V and the output power are maintained at the time of W2, and the length S=5m of vehicle is calculated.
Specifically, the electric signal monitoring unit 2010 monitors the variation of the output power of multiple photovoltaic panels, the number
The intensity of illumination in section changes where obtaining multiple photovoltaic panels according to the variation of output power according to processing unit 102, the data
The illumination for the common weather that processing unit 102 changes and is stored in the data storage cell 103 according to the intensity of illumination
The intensity table of comparisons can be analyzed to obtain the weather conditions in the section.
Specifically, the intensity of illumination table of comparisons of the common weather includes：The illumination intensity value of fine day is 30000-
300000lx, cloudy illumination intensity value are 3000-10000lx, are equivalent to 1%-10% when fine day, light when sunrise sunset
It is 300lx according to intensity value, 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；And at the cloudy day, the electric signal monitoring unit 2010 monitors light
The gross output of volt plate drops to 1%；
Further, it present embodiments provides section speed limit index and monitors photovoltaic with the electric signal monitoring unit 2010
Relationship between the gross output of plate：
When the gross output of the photovoltaic panel drops to 0.005%~0.01%, section speed limit is 40km/h；
When the gross output of the photovoltaic panel drops to 0.001%~0.005%, section speed limit is 30km/h；
When the gross output of the photovoltaic panel drops to 0.001% or less, section speed limit is 20km/h.
Embodiment 4
It present embodiments provides under the weather of the low visibility such as rain, snow, dense fog, hail, the limit of electronic speed limit display screen 4
Fast index；
For air visibility when within 50 meters, section speed limit is less than 20km/h, and vehicle should be sailed out of from nearest outlet as early as possible
Highway；
For air visibility when within 50~100 meters, section speed limit is less than 40km/h, and fore-aft vehicle should be kept other than 50 meters
Safe distance；
Air visibility when within 100~200 meters, section speed limit be less than 60km/h, fore-aft vehicle should keep 100 meters with
Outer safe distance.
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. for alleviating the intelligent transportation system of congestion, which is characterized in that including data management module (1) and with the data
Vehicle monitoring module (2), electronic speed limit display screen (4), power supply module (5) and the changeable driveway pipe of management module (1) electrical connection
Manage module (6)；The data management module (1) is examined for receiving, handling, storing and uploading the vehicle monitoring module (2)
The data information measured；The changeable driveway management module (6) is used to, according to the adaptive change track of crossing road conditions, dredge vehicle
Turn left, turn right or straight trip；The electronic speed limit display screen (4) carries out speed limit reminding for road pavement vehicle；The vehicle prison
Survey module (2) include multigroup photosensitive sensor (201), multigroup ultrasonic sensor (202), photosensitive switch control unit (203),
Counting unit (204), the unit that tests the speed (205) and radio frequency identification unit (206), the vehicle monitoring module (2) are layed in road surface,
Road conditions, vehicle flowrate and Vehicle Speed for monitoring section in real time.
2. the intelligent transportation system according to claim 1 for alleviating congestion, which is characterized in that multigroup photosensitive biography
It is set there are two photosensitive sensor (201)/ultrasonic sensor (202) for each group in sensor (201)/ultrasonic sensor (202),
And the distance between described two photosensitive sensors (201)/ultrasonic sensor (202) is fixed；
The photosensitive sensor (201)/ultrasonic sensor (202) is used to road pavement vehicle and tests the speed；
The photosensitive sensor (201) is additionally operable to measure air visibility.
3. the intelligent transportation system according to claim 1 for alleviating congestion, which is characterized in that the photosensitive switch control
Unit (203) processed and multigroup photosensitive sensor (201), counting unit (204), are tested the speed at multigroup ultrasonic sensor (202)
Unit (205) is electrically connected, and the photosensitive sensor is replaced under no light condition for controlling the ultrasonic sensor (202)
(201) it works.
4. the intelligent transportation system according to claim 1 for alleviating congestion, which is characterized in that the radio frequency identification list
First (206) include the radio-frequency card installed in the car and the reader on road surface are arranged, and the body of car owner is stored in the radio-frequency card
The information of part information and vehicle, photosensitive sensor (201) described in every group/ultrasonic sensor are equipped with the reading between (202)
Write device.
5. the intelligent transportation system according to claim 1 for alleviating congestion, which is characterized in that the data management mould
Block (1) includes data receipt unit (101), data processing unit (102), data storage cell (103) and data transmission unit
(104)。
6. the intelligent transportation system according to claim 1 for alleviating congestion, which is characterized in that the changeable driveway pipe
It includes power drive unit (601), Direction Signs lamp (602), power supply unit (603) to manage module (6)；The power drive unit
(601) it is electrically connected with the data management module (1)；The power drive unit (601) is for driving Direction Signs lamp
(602)；The power supply unit (603) is respectively power drive unit (601) and Direction Signs lamp (602) power supply.
7. the intelligent transportation system according to claim 1 for alleviating congestion, which is characterized in that the intelligent transportation system
System further includes weather monitoring module (3), and the weather monitoring module (3) includes temperature sensor (301) and humidity sensor
(302)。
8. a kind of photovoltaic highway, including the intelligent transportation system as described in any one of claim 1 to 7 for alleviating congestion,
It is characterized in that, the photovoltaic highway road surfacing has vehicle monitoring module (2)；
The photovoltaic highway both sides and/or photovoltaic road surface are equipped with electronic speed limit display screen (4)；
The photovoltaic highway intersection is equipped with Direction Signs lamp (602)；
The accumulator of the photovoltaic highway is electrically connected with the power supply module (5).
9. the operation method of the intelligent transportation system for alleviating congestion, which is characterized in that include the following steps：
Step A, air visibility is measured by photosensitive sensor (201), and Atmosphere temp.and RH is measured by weather monitoring module (3)
With road surface humiture, the data that the photosensitive sensor (201) and the weather monitoring module (3) measure are sent to data pipe
Manage module (1)；
Step B, the data management module (1) combine air visibility, Atmosphere temp.and RH and the analysis of road surface humiture to obtain phase
Weather conditions answered, and calculate corresponding speed limit index according to weather conditions, the data management module (1) is by the speed limit
Index is sent to electronic speed limit display screen (4) and carries out speed limit reminding；
Step C, by multigroup photosensitive sensor (the 201)/ultrasonic sensor (202), the counting unit (204) that are laid on road surface
It is measured with the speed, vehicle flowrate and traffic information of the unit that tests the speed (205) road pavement vehicle, and by speed, vehicle flowrate and road
Condition information is sent to data management module (1) and is stored and uploaded；
Step D, when having detected overspeed of vehicle, setting one group of photosensitive sensor (201)/ultrasonic sensor (202) it
Between reader obtain the identity information and information of vehicles of violation driver by reading installation radio-frequency card in the car；
Step E, vehicle monitoring module (2) monitors the road conditions of road intersection in real time, and monitoring data are transported to data
Management module (1), data management module (1) are analyzed current road conditions, are handled, and when monitoring crossing vehicle congestion, then count
Power drive unit (601) is transmitted information to according to management module (1), is led by power drive unit (601) driving changeable driveway
To the direction of identification light (602).
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| CN110796863A (en) * | 2019-11-05 | 2020-02-14 | 韶关学院 | Intelligent transportation device and management system based on Internet of things |
| CN110969865A (en) * | 2019-12-23 | 2020-04-07 | 深圳聚创致远科技有限公司 | Urban intelligent traffic informatization monitoring system |
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Application publication date: 20181113 |