CN109559515A - A kind of freeway traffic detection method and system based on wagon flow Monitoring of Quantity - Google Patents
A kind of freeway traffic detection method and system based on wagon flow Monitoring of Quantity Download PDFInfo
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- CN109559515A CN109559515A CN201811591417.4A CN201811591417A CN109559515A CN 109559515 A CN109559515 A CN 109559515A CN 201811591417 A CN201811591417 A CN 201811591417A CN 109559515 A CN109559515 A CN 109559515A
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- highway
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- vehicle fleet
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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
-
- 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
- G08G1/0133—Traffic data processing for classifying traffic situation
-
- 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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Traffic Control Systems (AREA)
Abstract
The invention discloses a kind of freeway traffic detection method and system based on vehicle fleet size monitoring, the Vehicle Detection method is the following steps are included: S1 acquires the vehicle fleet size data for calculating highway each main road and branch into the vehicle fleet size data of highway in real time；The vehicle fleet size threshold value for the vehicle pass-through that S2 is accommodated according to the real-time vehicle incremental data and highway of highway analyzes freeway traffic situation in real time；S3 is according to the traffic conditions of current freeway traffic situation analysis the highway each main road and branch of analysis.By acquiring the vehicle fleet size of each main road of highway and branch road in real time compared with the numerical value judgement of the vehicle fleet size threshold value for the vehicle normal pass that each main road of highway and branch accommodate, the traffic conditions of current highway each main road and branch are obtained in real time, and then the traffic conditions of each main road of current highway and branch is combined to test and analyze the traffic conditions of each main road of highway and branch.
Description
Technical field
The present invention relates to a kind of freeway traffic detection method and systems, more particularly to one kind to be based on wagon flow Monitoring of Quantity
Freeway traffic detection method and system.
Background technique
Traffic circulation on highway is the problem that everybody trip is concerned about very much, and is gone out during festivals or holidays
Capable people often occurs to block up for a long time on a highway, and vehicle fleet size of this aspect no doubt with going on a journey during festivals or holidays is huge
It is big related, but on the other hand also with timely and effectively the traffic conditions of highway cannot be detected in advance and ready made arrangement has
Very big relationship.
The detection of the magnitude of traffic flow can provide in advance message for the people of plan trip, so that them be allowed to avoid not knowing about
It is blocked up for a long time in the case where freeway traffic on a highway, its detection calculating process of existing big multi-method is all very complicated,
Cause the entire magnitude of traffic flow detection response time slower, each main road and branch on current highway cannot be reacted in real time
Real-time traffic situation.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of highways based on wagon flow Monitoring of Quantity
Vehicle Detection method and system solve defect existing for now current magnitude of traffic flow detection method.
The purpose of the present invention is achieved through the following technical solutions: a kind of highway based on vehicle fleet size monitoring
Vehicle Detection method, the Vehicle Detection method the following steps are included:
The vehicle fleet size data that acquisition in real time enters highway calculate the vehicle fleet size of highway each main road and branch
Data；
According to the vehicle fleet size threshold value for the vehicle pass-through that the real-time vehicle incremental data and highway of highway accommodate
Analysis freeway traffic situation in real time；
According to the traffic conditions of current freeway traffic situation analysis the highway each main road and branch of analysis.
The vehicle fleet size data that the real-time acquisition enters highway calculate the vehicle of highway each main road and branch
Incremental data step includes the following contents:
Each highway main road and branch charge station entrance real-time statistics enter the vehicle of highway main road and branch
Incremental data, and summarize to obtain the vehicle fleet size total data for being currently entering highway；
When the vehicle for having highway main road enters highway branch, then the vehicle fleet size of the highway main road subtracts
Enter the vehicle fleet size of highway branch less, the vehicle fleet size of the corresponding highway branch, which increases, enters highway branch
The vehicle fleet size on road；
When the vehicle for having highway branch enters highway main road, then the vehicle fleet size of the highway main road increases
The vehicle fleet size into highway main road is added, the vehicle fleet size of the corresponding highway branch, which is reduced, enters highway master
The vehicle fleet size on road.
The vehicle fleet size data of highway main road and branch are calculated in the vehicle fleet size data of acquisition highway in real time
It before further include the vehicle fleet size threshold size for calculating the vehicle normal pass that each main road of highway and branch accommodate.
The vehicle fleet size threshold size packet for calculating the vehicle normal pass that each main road of highway and branch accommodate
Include the following contents:
Go out a vehicle according to the Calculation of Safety Distance between each main road of highway and the mileage length and vehicle of branch
The vehicle fleet size threshold value for the vehicle normal pass that road can accommodate；
According to the number of track-lines meter of each main road of highway and branch calculate some exercise each main road of direction highway and
The vehicle fleet size threshold value for the vehicle normal pass that branch accommodates.
The vehicle fleet size threshold value for the vehicle pass-through that each main road of the highway and branch accommodate includes the first vehicle number
Measure threshold value and the second vehicle fleet size threshold value；The first vehicle fleet size threshold value is long by the mileage of each main road of highway and branch
Short the first Calculation of Safety Distance between vehicle obtains；The second vehicle fleet size threshold value is by each main road of highway and branch
The second Calculation of Safety Distance between the mileage length and vehicle on road obtains.
The first vehicle fleet size threshold value is greater than described less than the second vehicle fleet size threshold value, first safe distance
The second safe distance.
The vehicle number of the vehicle pass-through accommodated according to the real-time vehicle incremental data and highway of highway
It includes the vehicle number according to the highway each main road and branch acquired in real time that amount threshold value analyzes freeway traffic situation in real time
The size relation of amount judgement and the first vehicle fleet size threshold value and the second vehicle fleet size threshold value, is analyzed according to size relation.
A kind of traffic detection system of the freeway traffic detection method based on vehicle fleet size monitoring, it includes:
Vehicle fleet size acquisition module is mounted on the charge station's entrance and highway of each main road of highway and branch
At the fork in the road of each main road and branch separation, for acquiring and being transmitted into the vehicle number of highway each main road and branch in real time
Amount；
Cloud Server, for receiving the vehicle data information of the vehicle fleet size acquisition module transmission and carrying out calculating analysis
Processing.
The vehicle fleet size acquisition module includes the first vehicle fleet size acquisition unit and the second vehicle fleet size acquisition unit；
The first vehicle fleet size acquisition unit is mounted on the charge station outlet of each main road of highway and branch and enters
At mouthful, for acquiring and being transmitted into the vehicle fleet size of highway each main road and branch in real time；
At the fork in the road of each main road of second vehicle fleet size acquisition unit installation word highway and branch separation, use
In real-time acquisition send between each branch of highway or between each main road of highway or each main road of highway and branch
Between vehicle shunting and confluence vehicle fleet size.
The first vehicle fleet size acquisition unit and the second vehicle fleet size acquisition unit includes for real-time collecting vehicle
The vehicle count device of quantity is used for in real time sending the vehicle fleet size of acquisition to the communication device of the cloud service
The control device connected with the vehicle count device and communication device control, and be used for as the control device, institute
State the power supply unit of communication device and vehicle count device power supply.
The beneficial effects of the present invention are: a kind of freeway traffic detection method and system based on wagon flow Monitoring of Quantity,
The vehicle accommodated by the vehicle fleet size and each main road of highway and branch that acquire each main road of highway and branch road in real time
The numerical value judgement of the vehicle fleet size threshold value of normal pass is compared, and obtains the traffic feelings of each main road of current highway and branch in real time
Condition, and each main road of current highway and branch are combined according to the vehicle fleet size situation of change of each main road of highway and branch road
Traffic conditions the traffic conditions of each main road of highway and branch are analyzed；Each main road of highway can be understood in real time
With the traffic conditions of branch and each main road of high speed highway and branch are measured in real time.
Detailed description of the invention
Fig. 1 is the flow chart of the method for the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that the orientation of the instructions such as term " on ", "inner", "outside" or position are closed
System for be based on the orientation or positional relationship shown in the drawings or the invention product using when the orientation usually put or position close
System, is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must have
Specific orientation is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally connect
It connects；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also indirectly connected through an intermediary, it can
To be the connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood with concrete condition
Concrete meaning in the present invention.
Technical solution of the present invention is described in further detail with reference to the accompanying drawing, but protection scope of the present invention is not limited to
It is as described below.
As shown in Figure 1, a kind of freeway traffic detection method based on vehicle fleet size monitoring, the Vehicle Detection side
Method the following steps are included:
The vehicle fleet size data that S1, in real time acquisition enter highway calculate the vehicle number of highway each main road and branch
Measure data；
The vehicle fleet size threshold of S2, the vehicle pass-through accommodated according to the real-time vehicle incremental data and highway of highway
Value analyzes freeway traffic situation in real time；
S3, the traffic conditions according to current freeway traffic situation analysis the highway each main road and branch of analysis.
The vehicle fleet size data that the step S1 is acquired in real time into highway calculate each main road of highway and branch
The vehicle fleet size data step on road includes the following contents:
S11, each highway main road and branch charge station entrance real-time statistics enter highway main road and branch
Vehicle fleet size data, and summarize to obtain the vehicle fleet size total data for being currently entering highway；
S12, when the vehicle for having highway main road enters highway branch, then the vehicle number of the highway main road
Amount reduces the vehicle fleet size for entering highway branch, and it is public that the vehicle fleet size increase of the corresponding highway branch enters high speed
The vehicle fleet size of road branch；
S13, when the vehicle for having highway branch enters highway main road, then the vehicle number of the highway main road
Amount increases the vehicle fleet size for entering highway main road, and it is public that the vehicle fleet size reduction of the corresponding highway branch enters high speed
The vehicle fleet size of road main road.
Preferably, highway main road includes the highway that one direction lane quantity is more than or equal to three lanes, and high speed is public
Road branch includes the highway that one direction lane quantity is less than or equal to two lanes；As certain vehicle passes through on highway main road
Charge station enters highway, then the vehicle just can be regarded as the vehicle fleet size on highway main road, and if at a certain moment its from
Highway main road enters the vehicle fleet size that just no longer can be regarded as after highway branch on highway main road, but can be regarded as this
The vehicle fleet size of highway branch road.
The vehicle fleet size data of highway main road and branch are calculated in the vehicle fleet size data of acquisition highway in real time
It before further include the vehicle fleet size threshold size for calculating the vehicle normal pass that each main road of highway and branch accommodate.
The vehicle fleet size threshold size packet for calculating the vehicle normal pass that each main road of highway and branch accommodate
Include the following contents:
A1, go out one according to the Calculation of Safety Distance between each main road of highway and the mileage length and vehicle of branch
The vehicle fleet size threshold value for the vehicle normal pass that lane can accommodate；
A2, some enforcement each main road of direction highway is calculated according to the number of track-lines meter of each main road of highway and branch
The vehicle fleet size threshold value of the vehicle normal pass accommodated with branch.
The vehicle fleet size threshold value for the vehicle pass-through that each main road of the highway and branch accommodate includes the first vehicle number
Measure threshold value and the second vehicle fleet size threshold value；The first vehicle fleet size threshold value is long by the mileage of each main road of highway and branch
Short the first Calculation of Safety Distance between vehicle obtains；The second vehicle fleet size threshold value is by each main road of highway and branch
The second Calculation of Safety Distance between the mileage length and vehicle on road obtains.
The first vehicle fleet size threshold value is greater than described less than the second vehicle fleet size threshold value, first safe distance
The second safe distance.
Preferably, provide that minimum travel speed is not less than on a highway according to highway normally travel speed
60km/h, maximum travelling speed are not more than 120km/h；And the safe distance between vehicle is related with the travel speed of vehicle, it is false
The vehicle for determining normally travel on highway is travelled according to 60km/h, when being lower than 100km/h according to speed under normal circumstances,
Safety traffic distance between two vehicles should be not less than 50m, therefore it is 50m that the first safe distance, which is arranged, at this time according to high speed
Each main road of highway and branch mileage length can obtain the first vehicle fleet size threshold value divided by the first safe distance, and as the high speed is public
The maximum vehicle number amount that road vehicles normally travel can accommodate；And when the travel speed of the vehicle of normally travel on highway is low
In 60km/h (such as 40km/h), the Vehicle Speed on highway does not all reach minimum requirements at this time, illustrates vehicle occur
The case where jogging (such as traffic congestion, traffic accident cleaning), the second safe distance of setting is 40m；It is each according to highway at this time
Main road and branch mileage length can obtain the second vehicle fleet size threshold value, the as vehicle on highway divided by the second safe distance
Travel the maximum vehicle number amount that preliminary congestion can accommodate.
Such as, the mileage of certain highway is 200km, and all vehicles are all pressed 60km/h and travelled on the highway, two
Safe distance between vehicle is 50m, then the maximum vehicle number that the vehicle on highway normally travel can accommodate is calculated
Amount is about accurately 4000 for 200/0.05+1 (1 is negligible)；And if all vehicles all press 40km/ on the highway
H is travelled, and the safe distance between two vehicles is 40m, then the preliminary congestion of the express-road vehicle running is calculated can
The maximum vehicle number amount of receiving is about 5000；The vehicle fleet size on the highway is acquired in real time if it is less than 4000, then is said
The bright freeway traffic situation is normal, and passage is unimpeded；If acquire in real time vehicle fleet size on the highway 4000~
Between 5000, illustrate some congestions of the traffic conditions of the highway.
The vehicle number of the vehicle pass-through accommodated according to the real-time vehicle incremental data and highway of highway
It includes the vehicle number according to the highway each main road and branch acquired in real time that amount threshold value analyzes freeway traffic situation in real time
The size relation of amount judgement and the first vehicle fleet size threshold value and the second vehicle fleet size threshold value, is analyzed according to size relation.
Preferably, if the vehicle fleet size of each main road of the highway acquired in real time and branch is less than or equal to the first vehicle number
When measuring threshold value, illustrate that the traffic conditions of each main road of highway and branch are normal, passage is unimpeded；
If the vehicle fleet size of each main road of the highway acquired in real time and branch is greater than the first vehicle fleet size threshold value and is less than
When equal to the second vehicle fleet size threshold value, then illustrate that jam situation occur in the traffic conditions of each main road of highway and branch, but whole
It is current that body does not influence traffic；
Preferably, the vehicle fleet size threshold value for the vehicle pass-through that each main road of highway and branch accommodate further includes third vehicle
Amount threshold, third vehicle fleet size threshold value is by the third safety between each main road of highway and the mileage length and vehicle of branch
Distance is calculated；Wherein, third vehicle fleet size threshold value is greater than the second vehicle fleet size threshold value；Third safe distance is less than the second peace
Full distance.
Preferably, it is 20m that third vehicle fleet size threshold value, which is third safe distance, root when be Vehicle Speed being 20km/h
The vehicle fleet size obtained according to the mileage calculation of highway.
If the vehicle fleet size of each main road of the highway acquired in real time and branch is greater than the second vehicle fleet size threshold value and is less than
When equal to third vehicle fleet size threshold value, then illustrate that the traffic congestion situation of each main road of highway and branch is more serious,
Influence whole traffic passage situation；
If the vehicle fleet size of each main road of the highway acquired in real time and branch is greater than third vehicle fleet size threshold value,
Illustrate that the traffic of each main road of highway and branch cannot pass through substantially, highway is paralysed substantially.
A kind of traffic detection system of the freeway traffic detection method based on vehicle fleet size monitoring, it includes:
Vehicle fleet size acquisition module is mounted on the charge station's entrance and highway of each main road of highway and branch
At the fork in the road of each main road and branch separation, for acquiring and being transmitted into the vehicle number of highway each main road and branch in real time
Amount；
Cloud Server, for receiving the vehicle data information of the vehicle fleet size acquisition module transmission and carrying out calculating analysis
Processing.
The vehicle fleet size acquisition module includes the first vehicle fleet size acquisition unit and the second vehicle fleet size acquisition unit；
The first vehicle fleet size acquisition unit is mounted on the charge station outlet of each main road of highway and branch and enters
At mouthful, for acquiring and being transmitted into the vehicle fleet size of highway each main road and branch in real time；
At the fork in the road of each main road of second vehicle fleet size acquisition unit installation word highway and branch separation, use
In real-time acquisition send between each branch of highway or between each main road of highway or each main road of highway and branch
Between vehicle shunting and confluence vehicle fleet size.
The second vehicle fleet size acquisition at fork in the road by being mounted on each main road of installation word highway and branch separation
Unit is acquired and is sent in real time between each branch of highway or between each main road of highway or each main road of highway and branch
The vehicle fleet size of vehicle shunting and confluence between road；It can be in real time to the vehicle fleet size exercised on each main road of highway and branch
It is acquired, the traffic conditions for each main road of detection highway and branch road provide data support.
The first vehicle fleet size acquisition unit and the second vehicle fleet size acquisition unit includes for real-time collecting vehicle
The vehicle count device of quantity is used for in real time sending the vehicle fleet size of acquisition to the communication device of the cloud service
The control device connected with the vehicle count device and communication device control, and be used for as the control device, institute
State the power supply unit of communication device and vehicle count device power supply.
Preferably, power supply unit can be used including solar powered solar panel, controller and for storing
The battery of extra electric energy.
The foregoing is merely the present invention/invention embodiments, are not intended to limit the present invention/invention the scope of the patents, all
It is directly or indirectly to be transported using equivalent structure or equivalent flow shift made by the present invention/description of the invention and accompanying drawing content
It similarly include in the present invention/invention scope of patent protection used in other related technical areas.
Claims (10)
1. a kind of freeway traffic detection method based on vehicle fleet size monitoring, it is characterised in that: the Vehicle Detection side
Method the following steps are included:
The vehicle fleet size data that acquisition in real time enters highway calculate the vehicle fleet size data of highway each main road and branch；
Vehicle fleet size threshold value according to the vehicle pass-through of the real-time vehicle incremental data and highway of highway receiving is real-time
Analyze freeway traffic situation；
According to the traffic conditions of current freeway traffic situation analysis the highway each main road and branch of analysis.
2. a kind of freeway traffic detection method based on vehicle fleet size monitoring according to claim 1, feature exist
In: the vehicle fleet size data that the real-time acquisition enters highway calculate the vehicle fleet size of highway each main road and branch
Data step includes the following contents:
Each highway main road and branch charge station entrance real-time statistics enter the vehicle fleet size of highway main road and branch
Data, and summarize to obtain the vehicle fleet size total data for being currently entering highway；
When the vehicle for having highway main road enters highway branch, then the vehicle fleet size of the highway main road reduce into
Enter the vehicle fleet size of highway branch, the vehicle fleet size of the corresponding highway branch, which increases, enters highway branch
Vehicle fleet size；
When the vehicle for having highway branch enters highway main road, then the vehicle fleet size of the highway main road increase into
Enter the vehicle fleet size of highway main road, the vehicle fleet size of the corresponding highway branch, which is reduced, enters highway main road
Vehicle fleet size.
3. a kind of freeway traffic detection method based on vehicle fleet size monitoring according to claim 1, feature exist
In: before the vehicle fleet size data of acquisition highway in real time calculate the vehicle fleet size data of highway main road and branch also
Vehicle fleet size threshold size including calculating the vehicle normal pass that each main road of highway and branch accommodate.
4. a kind of freeway traffic detection method based on vehicle fleet size monitoring according to claim 3, feature exist
In: the vehicle fleet size threshold size for the vehicle normal pass that each main road of calculating highway and branch accommodate includes following
Content:
Go out a lane energy according to the Calculation of Safety Distance between each main road of highway and the mileage length and vehicle of branch
The vehicle fleet size threshold value of the vehicle normal pass of receiving；
Some, which is calculated, according to the number of track-lines meter of each main road of highway and branch exercises each main road of direction highway and branch
The vehicle fleet size threshold value of the vehicle normal pass of receiving.
5. a kind of freeway traffic detection method based on vehicle fleet size monitoring according to claim 4, feature exist
In: the vehicle fleet size threshold value for the vehicle pass-through that each main road of the highway and branch accommodate includes the first vehicle fleet size threshold value
With the second vehicle fleet size threshold value；The first vehicle fleet size threshold value by each main road of highway and branch mileage length and vehicle
The first Calculation of Safety Distance between obtains；The second vehicle fleet size threshold value is by each main road of highway and branch
The second Calculation of Safety Distance between journey length and vehicle obtains.
6. a kind of freeway traffic detection method based on vehicle fleet size monitoring according to claim 5, feature exist
In: the first vehicle fleet size threshold value less than the second vehicle fleet size threshold value, first safe distance is greater than described the
Two safe distances.
7. a kind of freeway traffic detection method based on vehicle fleet size monitoring according to claim 5, feature exist
In: the vehicle fleet size threshold value of the vehicle pass-through accommodated according to the real-time vehicle incremental data and highway of highway
Analysis freeway traffic situation includes the vehicle fleet size judgement according to each main road of highway and branch acquired in real time in real time
With the size relation of the first vehicle fleet size threshold value and the second vehicle fleet size threshold value, analyzed according to size relation.
8. a kind of freeway traffic detection method based on vehicle fleet size monitoring described in -7 any one according to claim 1
Traffic detection system, it is characterised in that: it includes:
Vehicle fleet size acquisition module is mounted on each master of charge station's entrance and highway of each main road of highway and branch
At road and the fork in the road of branch separation, for acquiring and being transmitted into the vehicle fleet size of highway each main road and branch in real time；
Cloud Server, for receiving the vehicle data information of the vehicle fleet size acquisition module transmission and calculate at analysis
Reason.
9. a kind of Vehicle Detection of freeway traffic detection method based on vehicle fleet size monitoring according to claim 8
System, it is characterised in that: the vehicle fleet size acquisition module includes the first vehicle fleet size acquisition unit and the second vehicle fleet size
Acquisition unit；
The first vehicle fleet size acquisition unit is mounted on the charge station outlet and inlet of each main road of highway and branch,
For acquiring and being transmitted into the vehicle fleet size of highway each main road and branch in real time；
At the fork in the road of each main road of second vehicle fleet size acquisition unit installation word highway and branch separation, for real
When acquire and send each branch of highway between or each main road of highway between or each main road of highway and branch between
The vehicle fleet size of vehicle shunting and confluence.
10. a kind of traffic inspection of freeway traffic detection method based on vehicle fleet size monitoring according to claim 9
Examining system, it is characterised in that: the first vehicle fleet size acquisition unit and the second vehicle fleet size acquisition unit includes being used for
The vehicle count device of acquisition vehicle fleet size in real time, in real time sending the vehicle fleet size of acquisition to the communication of the cloud service
Device, for the control device with the vehicle count device and communication device control connection, and for being the control
The power supply unit that device, the communication device and the vehicle count device processed are powered.
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| CN104700630A (en) * | 2013-12-05 | 2015-06-10 | 感知技术无锡有限公司 | Method and system for monitoring vehicle flow of highway |
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Application publication date: 20190402 |