CN107358804A - A kind of traffic lights traffic flow detecting method - Google Patents
A kind of traffic lights traffic flow detecting method Download PDFInfo
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- CN107358804A CN107358804A CN201710786535.XA CN201710786535A CN107358804A CN 107358804 A CN107358804 A CN 107358804A CN 201710786535 A CN201710786535 A CN 201710786535A CN 107358804 A CN107358804 A CN 107358804A
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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
- G08G1/065—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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Abstract
The invention provides a kind of traffic lights traffic flow detecting method, belongs to traffic grade field, including traffic light apparatus, car statistics device and car-mounted device；The traffic light apparatus is arranged on the front at each crossing, car statistics device be arranged on the centre in reverse track and with traffic light apparatus wireless connection, car-mounted device be arranged in each car and with car statistics device wireless connection.Car-mounted device is selected to automatically turn on or closed according to car speed, and wireless signal is sent after unlatching and is detected for car statistics device.The detection of car statistics device the positioning vehicle-carried affiliated track of device, counts the vehicle flowrate in each track into the car-mounted device of detection range.The vehicle flowrate in each track in each crossing that traffic light apparatus is passed to according to car statistics device is controlled the time of traffic lights.
Description
Technical field
The present invention relates to traffic grade field, especially, is related to a kind of traffic lights traffic flow detecting method.
Background technology
Traffic lights (traffic lights) time of existing traffic control system is substantially what experience was set, is consolidated by the period
The control mode fixed time.The traffic control signal at these crossings will not change adjustment in real time according to vehicle flowrate, often have
The direction red light of car, and do not have the direction long-time green light of car.This real road vehicle condition and traffic control signal are asynchronous
Situation can increase stoppage of vehicle number and time, waste existing path resource, deteriorate traffic congestion state, increase the energy and disappear
Consumption and exhaust emission.For road improvement traffic behavior, some traffic intersections have traffic police etc. in peak period and manually commanded, its purpose
Exactly allow traffic control signal to optimize adjustment according to the real time status of road because traffic police it can be seen that the vehicle at crossing and
The real-time traffic states of pedestrian.But each crossing, all someone's floor managers are unpractical within daily 24 hours.
Therefore, it is necessary to design a kind of traffic light apparatus voluntarily controlled according to actual conditions.So that plus
The defeated stream of fast crossing vehicle, reduce road traffic congestion event.
The content of the invention
Present invention aims at a kind of traffic lights traffic flow detecting method is provided, examined with solving existing vehicle flowrate device
The true technical problem of indeterminacy.
To achieve the above object, the invention provides a kind of traffic lights traffic flow detecting method, detection means to include vehicle
Statistic device (2) and car-mounted device (7)；Car statistics device (2) is arranged on the centre in reverse track, car statistics device (2)
Including GPS receiver module, aspect sensor, car statistics controller and wireless sending module；The car-mounted device (7) includes car
Speed detector, Vehicle Controller and GPS sending modules,；Car-mounted device (7) be arranged on each car on and with car statistics device
(2) wireless connection；Characterized in that, detection method comprises the following steps：
Step 1：Vehicle speed detector device is used for the speed of collection vehicle and the speed of detection is transmitted to Vehicle Controller；
Step 2：Vehicle Controller receives the incoming speed of vehicle speed detector device and compared with default speed, works as inspection
The speed of survey is than default speed hour, and Vehicle Controller control GPS sending modules start, when the speed of detection is than default speed
When spending big, GPS sending modules do not start；
Step 3：The signal of GPS sending modules transmitting setting frequency range is detected for car statistics device (2)；
Step 4：The GPS sending modules transmitting for the car-mounted device (7) that the detection of GPS receiver module enters in detection range is set
Determine the gps signal of frequency range, while obtain the distance between car-mounted device (7) and car statistics device (2)；
Step 5：Aspect sensor obtains angle of the car-mounted device (7) between horizontal line；
Step 6：Car statistics controller is according to the distance distance and car between car-mounted device (7) and car statistics device (2)
Carry and put the angle of (7) between horizontal line and calculate track belonging to car-mounted device (7).
In such scheme, process preferable but that the track belonging to car-mounted device (7) is calculated in step 6 is：
Step 6.1：The distance that car statistics controller is obtained between car-mounted device (7) and car statistics device (2) is a and car
It is β to carry and put the angle of (7) between horizontal line；
Step 6.2：Car statistics controller calculates distance=a/cos β of the car statistics device (2) between track；
Step 6.3：Distance of the car statistics device (2) between track and the car statistics device (2) that originally set with
The distance range in each track is compared, and track belonging to car-mounted device (7) is drawn, wherein the distance range in each track is by people
Work measurement setting.
The invention has the advantages that：
By the present invention in that being counted with accurately statistical method of traffic flow to vehicle flowrate, examined using car statistics device
The distance direction of car-mounted device and car statistics device is surveyed, so as to obtain the track of vehicle, further obtains every car
The information of vehicles in road, so that it is more accurate with existing photography detection, so that traffic lights can be according to intersection vehicle flux
Information carry out intelligent control traffic lights so that be not in the direction red light for having car, and do not have the direction of car green for a long time
The situation of lamp, accelerate the defeated stream at traffic lights crossing, reduce the situation of road traffic congestion.
In addition to objects, features and advantages described above, the present invention also has other objects, features and advantages.
Below with reference to figure, the present invention is further detailed explanation.
Brief description of the drawings
The accompanying drawing for forming the part of the application is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is structured flowchart of the present invention.
Fig. 2 is crossroad installation diagram of the present invention.
Fig. 3 is car statistics figure of the present invention.
Label in figure：1 traffic light apparatus, 2 car statistics devices, 3 right-turn lanes, 4 Through Lanes, 5 left turn lanes, 6 cars
, 7 car-mounted devices.
Embodiment
Embodiments of the invention are described in detail below in conjunction with accompanying drawing, but the present invention can limit according to claim
Fixed and covering multitude of different ways is implemented.
A kind of traffic lights traffic flow detecting method, as Figure 1-3, including traffic light apparatus 1, the and of car statistics device 2
Car-mounted device 7.Traffic light apparatus 1 is arranged on the front at each crossing, and car statistics device 2 is arranged on the centre in reverse track
And with the wireless connection of traffic light apparatus 1.Car-mounted device 7 be arranged on each car on and with the wireless connection of car statistics device 2.
Car-mounted device 7 is arranged to a control box, including shell body and internal circuit board, internal circuit board are provided with data
Acquisition interface and spilling is connected with the control device on automobile outside shell body.Car-mounted device 7 includes vehicle speed detector device, vehicle-mounted
Controller and GPS sending modules.Vehicle speed detector device is used for the speed of collection vehicle and the speed of detection is transmitted to vehicle-mounted control
Device, vehicle speed detector device are AD sampling modules, sampling interval 0.5s, and the data of collection are transmitted to vehicle-mounted control in real time
Device.Vehicle Controller receives the incoming speed of vehicle speed detector device and compared with default speed, when the speed ratio of detection
Default speed hour, Vehicle Controller control GPS sending modules start.Vehicle Controller is when starting installation by manually setting
The pre-set velocity of vehicle is put, is traditionally arranged to be 10km/h, therefore when Vehicle Controller receives the vehicle speed less than 10km/h,
Vehicle Controller just controls electric in GPS sending module automatic starts.GPS sending modules launch setting frequency range signal after opening supplies
Car statistics device 2 is detected.The signal of setting frequency range for during manufacture program setting with car statistics device 2
On detection frequency range think correspondingly, so as to more face detection.
Car statistics device 2 is arranged to the housing of a sealing, and housing low side is provided with column, the height of column with it is vehicle-mounted
The vertical height that device 7 is arranged on car is identical.Car statistics device 2 is set on jube between track in the opposite direction or flower nursery
On, for detecting the vehicle on the right of crossing, the right is with respect to accompanying drawing and the right for saying, the direction setting carried out for convenience,
But the invention is not limited in the setting in these directions.Enclosure interior is provided with circuit board, and circuit board is connected with the power supply of outside
Power supply.Car statistics device 2 includes GPS receiver module, aspect sensor, car statistics controller and wireless sending module.GPS
The gps signal of the setting frequency range of the GPS sending modules transmitting for the car-mounted device 7 that receiving module detection enters in detection range, together
When obtain distance between car-mounted device 7 and car statistics device 2, GPS short distance positionings can cause error to narrow down to 0.05m,
The detailed process for obtaining distance is prior art, is no longer described in detail herein.Aspect sensor obtains car-mounted device 7 and horizontal line
Between angle, due to car-mounted device 7 and the same level of car statistics device 2 height, therefore aspect sensor can directly sense
Angle between car-mounted device 7 and horizontal line, therefore car-mounted device 7 is to the direction of motion lead of car so that with being filled from car statistics
2 horizontal line is put, forms a leg triangle.Car statistics controller is according to car-mounted device 7 and car statistics device 2
Between distance distance and the angle between car-mounted device 7 and horizontal line calculate track belonging to car-mounted device 7.As shown in figure 3, vehicle
The process that statistics controller calculates the track belonging to car-mounted device 7 is that car statistics controller obtains car-mounted device 7 and united with vehicle
The angle that distance between counter device 2 is a between car-mounted device 7 and horizontal line is β, so as to be calculated according to the cosine law of triangle
Distance=a/cos β between car statistics device 2 and track.Because there is certain width in track, therefore in installation car statistics dress
With regard to artificial inside car statistics device 2 and the distance input car statistics controller in each track when putting 2, due to differently
The lane width of the road in area is different, therefore car statistics device 2 and the distance range in each track are also different, distance
Range wide is the width in track.The distance between car statistics device 2 and track and the car statistics device 2 that originally set with
The distance range in each track is compared, and show that the distance between the car statistics device 2 measured and track is fallen into by contrast
In which track distance range, the car just belongs to the track, draws track belonging to car-mounted device 7.Wireless sending module is each
The vehicle flowrate in track is transmitted to traffic light apparatus 1, a general detection statistical result of 0.5 second hair.
Traffic light apparatus 1 includes wireless receiving module, traffic light controller and traffic LED signal lamp.Wireless receiving module
The information of vehicle flowrate in the incoming each track of car statistics device 2 is received, and the information of reception is transmitted to traffic light controller.Hand over
Logical lamp controller calculates the time of all directions traffic lights opening and closing, and control according to the information of vehicle flowrate on road of all directions
Signal processed is transmitted to traffic LED signal lamp.Traffic light controller calculates the process of the time of all directions traffic lights opening and closing
For, (track flow-average vehicle flow)+fiducial time green light opening time=time radix *, wherein time radix=2s/,
Fiducial time=60s.Such as the time that the straight trip green light for east-west direction is opened, when the vehicle flowrate of east-west direction is 30
When, and the average vehicle flow at crossing be 25 when, the opening time of side green light is 2s/ * (30-25)+60s=70s.Hand over
Logical LED signal lamp is lighted or closed according to traffic light controller control signal.Handed over so as to reach intelligent control crossing
It is logical, preferably prevent due to caused by traffic lights the problems such as traffic jam.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (2)
1. a kind of traffic lights traffic flow detecting method, detection means includes car statistics device (2) and car-mounted device (7)；Vehicle
Statistic device (2) is arranged on the centre in reverse track, and car statistics device (2) includes GPS receiver module, aspect sensor, car
Statistics controller and wireless sending module；The car-mounted device (7) includes vehicle speed detector device, Vehicle Controller and GPS hairs
Send module,；Car-mounted device (7) be arranged on each car on and with car statistics device (2) wireless connection；Characterized in that, detection
Method comprises the following steps：
Step 1：Vehicle speed detector device is used for the speed of collection vehicle and the speed of detection is transmitted to Vehicle Controller；
Step 2：Vehicle Controller receives the incoming speed of vehicle speed detector device and compared with default speed, when detection
Speed is than default speed hour, and Vehicle Controller control GPS sending modules start, when the speed of detection is bigger than default speed
When, GPS sending modules do not start；
Step 3：The signal of GPS sending modules transmitting setting frequency range is detected for car statistics device (2)；
Step 4：The setting frequency of the GPS sending modules transmitting for the car-mounted device (7) that the detection of GPS receiver module enters in detection range
The gps signal of section, while obtain the distance between car-mounted device (7) and car statistics device (2)；
Step 5：Aspect sensor obtains angle of the car-mounted device (7) between horizontal line；
Step 6：Car statistics controller is according to the distance distance between car-mounted device (7) and car statistics device (2) and vehicle-mounted dress
Put the angle of (7) between horizontal line and calculate track belonging to car-mounted device (7).
2. a kind of traffic lights traffic flow detecting method according to claim 1, it is characterised in that calculated in the step 6
The process in the track belonging to car-mounted device (7) is：
Step 6.1：The distance that car statistics controller is obtained between car-mounted device (7) and car statistics device (2) is a and vehicle-mounted dress
It is β to put the angle of (7) between horizontal line；
Step 6.2：Car statistics controller calculates distance=a/cos β of the car statistics device (2) between track；
Step 6.3：Distance of the car statistics device (2) between track and the car statistics device (2) that originally set with it is each
The distance range in track is compared, and draws track belonging to car-mounted device (7), wherein the distance range in each track is by manually surveying
Amount setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710786535.XA CN107358804A (en) | 2017-09-04 | 2017-09-04 | A kind of traffic lights traffic flow detecting method |
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| CN201710786535.XA CN107358804A (en) | 2017-09-04 | 2017-09-04 | A kind of traffic lights traffic flow detecting method |
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Cited By (2)
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| CN107705587A (en) * | 2017-11-05 | 2018-02-16 | 长沙秋点兵信息科技有限公司 | Traffic light control device based on accurate detection of traffic flow |
| CN107919022A (en) * | 2017-11-22 | 2018-04-17 | 浙江工业大学 | A kind of intelligent traffic light signal control method of dynamic duration distribution |
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| CN107919022B (en) * | 2017-11-22 | 2020-06-12 | 浙江工业大学 | Intelligent traffic light signal control method for dynamic time length distribution |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180530 Address after: 530000 No. 3 Binhe Road, XiXiangTang District, Nanning, the Guangxi Zhuang Autonomous Region, No. 4503, B block, Shang Li bay, China. Applicant after: GUANGXI WANCHUANG DATA TECHNOLOGY Co.,Ltd. Address before: 530007 Guangxi University For Nationalities, 188 East University Road, XiXiangTang District, Nanning, the Guangxi Zhuang Autonomous Region Applicant before: Wu Shigui |
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171117 |