CN106920401A - Crossroad traffic lights duration control method and device - Google Patents
Crossroad traffic lights duration control method and device Download PDFInfo
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- CN106920401A CN106920401A CN201510997737.XA CN201510997737A CN106920401A CN 106920401 A CN106920401 A CN 106920401A CN 201510997737 A CN201510997737 A CN 201510997737A CN 106920401 A CN106920401 A CN 106920401A
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
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- G08G1/08—Controlling traffic signals according to detected number or speed of vehicles
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Abstract
The invention discloses a kind of crossroad traffic lights duration control method and device, wherein, method includes：Obtain first information of vehicle flowrate in red light track, first green time is obtained according to the first information of vehicle flowrate, if the first green time is more than default fixed green time, second information of vehicle flowrate in upper red light duration in current green light track is then obtained, and obtains the equivalent flow of the people in red light track and green light track；Judge whether the equivalent flow of the people in red light track is more than the equivalent flow of the people in green light track, if result is yes, and the difference of the equivalent flow of the people of the equivalent flow of the people and green light track in red light track is more than or equal to the first predetermined threshold value, the next long green light time in red light track is then controlled for the first green time, the current long green light time in control green light track is constant.Methods and apparatus of the present invention can flexibly change the traffic light time of crossroad, consider the flow of the people situation of crossroad, and more people can be made to pass through, and increased traffic efficiency.
Description
Technical field
The present invention relates to a kind of control method, more particularly to a kind of crossroad traffic lights duration control method and device.
Background technology
The larger intersection of metropolitan transportation in china flow-rate ratio is substantially the signal control method of fixed cycle, and each ten
Word crossing is all provided with fixed green light, amber light, red time.The time of these traffic lights is all the system according to historical traffic stream
The set time that meter result determines.
Because the people of selection automobile trip now is more and more, therefore the situation of the magnitude of traffic flow becomes complicated all the more, different
Vehicle flowrate of the period in same crossroad is changed greatly, thus can not clearly meet multiple using fixed traffic light time
The vehicle flowrate of miscellaneous change, the method flexibility of the control traffic lights of prior art is poor.
The content of the invention
It is an object of the invention to provide a kind of crossroad traffic lights duration control method, it is used to solve of the prior art
The problem for controlling the method flexibility of traffic lights poor.
To achieve the above object, first aspect present invention provides a kind of crossroad traffic lights duration control method, bag
Include：
First information of vehicle flowrate in the current red light track in crossroad is obtained, the is obtained according to first information of vehicle flowrate
One green time, wherein, the information of vehicle flowrate includes the length information of the quantity, the species of vehicle and vehicle of vehicle；
Whether first green time is judged more than default fixed green time, if result is yes, obtains current
Second information of vehicle flowrate in upper red light duration in green light track, weight information according to default different type vehicle,
First information of vehicle flowrate and the second information of vehicle flowrate obtain the equivalent flow of the people in red light track and green light track；
Judge whether the equivalent flow of the people in red light track is more than the equivalent flow of the people in green light track, if result is yes, and institute
The difference of the equivalent flow of the people in red light track and the equivalent flow of the people in green light track is stated more than or equal to the first predetermined threshold value, is then controlled
The next long green light time in red light track is first green time, controls the current long green light time in the green light track not
Become.
Crossroad as described above traffic lights duration control method, it is preferable that the current red light in acquisition crossroad
First information of vehicle flowrate in track, the first green time is obtained according to first information of vehicle flowrate, including：
The information of vehicle flowrate in the first sub- track and the second sub- track in red light track is obtained, wherein, the second sub- car
Road is opposite with the first sub- driveway travel directions；
Information of vehicle flowrate according to the described first sub- track obtains the first sub- green time；
Information of vehicle flowrate according to the described second sub- track obtains the second sub- green time；
Big one of numerical value in the first sub- green time and the second sub- green time is controlled as the first green time.
Crossroad as described above traffic lights duration control method, it is preferable that whether judge first green time
More than default fixed green time, if the result is negative, then the first green time is controlled to be shown as red light track next cycle
Green time during green light, controls the current green time in the green light track constant.
Crossroad as described above traffic lights duration control method, it is preferable that according to default different types of vehicle
Weight information, the first information of vehicle flowrate and the second information of vehicle flowrate obtain the equivalent flow of the people bag in red light track and green light track
Include：
According toThe equivalent flow of the people in red light track and green light track is obtained, wherein, LiIt is equivalent for i tracks
Flow of the people, i values represent red light or green light, AjIt is the weight information of vehicle, n is the quantity of type of vehicle, XjiIt is j on i tracks
The vehicle number of type.
Crossroad as described above traffic lights duration control method, it is preferable that also include：If the red light track etc.
Effect flow of the people judges equivalent flow of the people and the green light track in the red light track less than or equal to the equivalent flow of the people in green light track
Equivalent flow of the people difference whether be more than the second predetermined threshold value, if result is yes, it is institute to control the next long green light time in red light track
Default fixed green time is stated, the current long green light time in control green light track is constant, wherein, second predetermined threshold value is negative
Number.
Crossroad as described above traffic lights duration control method, it is preferable that also include：Judge the equivalent of red light track
Flow of the people whether more than green light track equivalent flow of the people, if result is yes, and the equivalent flow of the people in the red light track with it is green
When the difference of the equivalent flow of the people in lamp track is more than or equal to three predetermined threshold values, it is pre- to control the next long green light time in red light track
If maximum green time, wherein, the 3rd predetermined threshold value is more than first predetermined threshold value, and the maximum green time is big
In the fixed green time.
Second aspect present invention provides a kind of crossroad traffic lights duration control device, including：
Acquisition module, the first information of vehicle flowrate for obtaining the current red light track in crossroad, according to first car
Flow information obtains the first green time, wherein, the information of vehicle flowrate includes quantity, the species of vehicle and the vehicle of vehicle
Length information；
First judge module, for whether judging first green time more than default fixed green time, if knot
Fruit is yes, then second information of vehicle flowrate in upper red light duration in current green light track is obtained, according to default inhomogeneity
The weight information of type vehicle, the first information of vehicle flowrate and the second information of vehicle flowrate obtain the equivalent people in red light track and green light track
Flow；
Whether the second judge module, the equivalent flow of the people for judging red light track is more than the equivalent stream of people in green light track
Amount, if result is yes, and the difference of the equivalent flow of the people of the equivalent flow of the people and green light track in the red light track is more than or equal to
First predetermined threshold value, then control the next long green light time in red light track for first green time, controls the green light car
The current long green light time in road is constant.
Crossroad as described above traffic lights duration control device, it is preferred that the acquisition module is specifically for obtaining
The information of vehicle flowrate in the first sub- track and the second sub- track in red light track, wherein, the second sub- track and the first sub- car
Road travel direction is opposite；
It is additionally operable to obtain the first sub- green time according to the information of vehicle flowrate in the described first sub- track, according to the described second son
The information of vehicle flowrate in track obtains the second sub- green time, and numerical value is big in the first sub- green time of control and the second sub- green time
One as the first green time.
Crossroad as described above traffic lights duration control device, it is preferred that first judge module is additionally operable to
When judging whether first green time is more than the result of default fixed green time for no, the first green time of control is made
Green time during cycle display green light next for red light track, controls the current green time in the green light track constant.
Crossroad as described above traffic lights duration control device, it is preferred that the acquisition module is specifically for basisThe equivalent flow of the people in red light track and green light track is obtained, wherein, LiIt is the equivalent flow of the people in i tracks, i values
Represent red light or green light, AjIt is the weight information of vehicle, n is the quantity of type of vehicle, XjiIt is the vehicle number of j types on i tracks.
Crossroad as described above traffic lights duration control device, it is preferred that second judge module is additionally operable to
When the equivalent flow of the people in the red light track is less than or equal to the equivalent flow of the people in green light track, the red light track is judged
Whether the difference of the equivalent flow of the people in equivalent flow of the people and green light track is more than the second predetermined threshold value, if result is yes, controls red light
The next long green light time in track is the default fixed green time, and the current long green light time in control green light track is constant, wherein,
Second predetermined threshold value is negative.
Crossroad as described above traffic lights duration control device, it is preferred that second judge module is additionally operable to
Whether the equivalent flow of the people for judging red light track is yes, and the red light track more than the result of the equivalent flow of the people in green light track
Equivalent flow of the people and the difference of equivalent flow of the people in green light track when being more than or equal to three predetermined threshold values, under controlling red light track
One long green light time is default maximum green time, wherein, the 3rd predetermined threshold value is more than first predetermined threshold value, described
Maximum green time is more than the fixed green time.
The crossroad traffic lights duration control method and device provided from above technical scheme, the present invention, pass through
The first information of vehicle flowrate of first lane showed with second lane in a upper cycle during currently displaying red light in acquisition crossroad
The second information of vehicle flowrate obtained during red light, when the first green time of the first lane for obtaining is more than default fixed green light
Between when, obtain the equivalent stream of people in upper cycle red light of equivalent flow of the people and second lane that first lane is in current red light
Amount, by the way of competition, i.e., when the difference of the equivalent flow of the people of the equivalent flow of the people and second lane of the first lane is more than
Or during equal to the first predetermined threshold value, during green light during using the first green time as first lane next cycle display green light
Between, the green time of current second lane is constant, it can be seen that crossroad traffic lights duration control method of the invention can be with
The flexible flow of the people situation for changing the traffic light time of crossroad, and having considered crossroad, using the present invention
Method, can make more people pass through, increased traffic efficiency.
Brief description of the drawings
Fig. 1 is the flow chart of traffic lights duration control method in crossroad provided in an embodiment of the present invention；
The flow chart of the crossroad traffic lights duration control method that Fig. 2 is provided for another embodiment of the present invention；
The flow chart of the crossroad traffic lights duration control method that Fig. 3 is provided for further embodiment of this invention；
Fig. 4 is the structural representation of traffic lights duration control device in crossroad provided in an embodiment of the present invention.
Specific embodiment
Embodiment one
Fig. 1 is the flow chart of traffic lights duration control method in crossroad provided in an embodiment of the present invention, the present embodiment
Executive agent is controller, and the controller is mainly used in controlling the traffic lights duration of crossroad, for example, the controller
Can be the roadside equipment for being arranged on roadside, can be communicated with the vehicle travelled on road.As shown in figure 1, the crossroad
Traffic lights duration control method includes：
Step 101, obtains first information of vehicle flowrate in the current red light track in crossroad, is obtained according to the first information of vehicle flowrate
The first green time T is taken, wherein, information of vehicle flowrate includes the length information of the quantity, species and vehicle of vehicle.
Red light track refers to the track of currently displaying red light, and the length information of vehicle refers to the length letter of each car
Breath.
Wherein, the first green time can regard the evaluation time evacuated to the wagon flow in current red light track as.Tool
Body, can according to the equivalent length of red light track vehicle divided by the car amount in speed and the red light track of vehicle reaction time it
With obtain the first green time, i.e. T=N × D+M/v, wherein, T be the first green time, N for red light track vehicle number
Amount, D is the time of the reaction time of each vehicle, i.e. each vehicle launch, and the startup time of each vehicle can be considered as homogeneously
Together, M for red light track vehicle equivalent length, v for vehicle speed, wherein, wherein, red light track arrangement vehicle on road
Distance on face is the equivalent length of vehicle, because at the parting of the ways, the speed of vehicle will not be very big, therefore can own
The speed of vehicle is all equivalent to a pre-set velocity, and the speed is v.
Step 102, judges that whether the first green time T, more than default fixed green time Tg, if result is yes, is obtained
Second information of vehicle flowrate in upper red light duration in current green light track is taken, weight information according to different type vehicle,
First information of vehicle flowrate and the second information of vehicle flowrate obtain the equivalent flow of the people in red light track and green light track.
Wherein, fixed green time Tg can be the long green light time of prior art, it is of course also possible to enter according to actual needs
Row is set.If the first green time T1 is more than default fixed green time Tg, i.e. T>Tg, if illustrating to fix green time Tg
Wagon flow to current red light track is evacuated, then can not completely evacuate the vehicle in current red light track, may there is one
Determine the traffic congestion of degree.
Second information of vehicle flowrate in upper red light duration in current green light track includes green light in upper red light duration
The length information of the quantity, species and vehicle of the vehicle of track tailback.Upper red light duration in second information of vehicle flowrate
The quantity of interior green light track vehicle can be considered as the vehicle flowrate that green light track is currently being evacuated.
Equivalent flow of the people can be obtained according to the weight information of different type vehicle, wherein, the weight information of vehicle
The quantity of personnel can be carried according to different type vehicle to obtain, and then is pre-set in the controller.For example, public transport
Car is 40 in the average passenger occupancy of early evening peak, and the average passenger occupancy of private car is 2, and in off-peak period, bus it is flat
Equal handling capacity of passengers is 20, and the average passenger occupancy of private car is 1.5, be therefore, it can according to different periods for different types of vehicle
Carrying personnel quantity, by the weight information of bus default 40 and 20, the weight information of private car is 2 and 1.5, and then will
The weight information is preset in controller.Can be by the power that obtains the kind of information of temporal information and vehicle to select different
Weight.
It is interchangeable, it is also possible to the weight information acquisition controller of vehicle can not in real time to be obtained into vehicle and currently carry people
The information of member's quantity, now, then without default weight information.
Step 103, judges whether the equivalent flow of the people in red light track is more than the equivalent flow of the people in green light track, if result is
It is, and the difference of the equivalent flow of the people of the equivalent flow of the people and green light track in red light track is more than or equal to the first predetermined threshold value, then
The next long green light time in red light track is controlled for the first green time, the current long green light time in control green light track is constant.
On the basis of the first green time T is more than default fixed green time Tg, as the equivalent stream of people in red light track
When amount is more than the equivalent flow of the people in green light track, illustrate that the stream of people in red light track is more, current green light track can be considered as and worked as
Fail in the competition in preceding red light track, therefore, to dredge based on current red light track, therefore during the next green light in control red light track
A length of first green time, and control the current long green light time in green light track constant.If in addition, the equivalent flow of the people in red light track
Equivalent flow of the people with green light track is more or less the same, then be changed without the next long green light time to red light track, still controls
The next long green light time in red light track processed is default fixed green time.Therefore, only in the equivalent stream of people in red light track
Amount is greater than the equivalent flow of the people in green light track, and the equivalent flow of the people of the equivalent flow of the people and green light track in red light track difference
During more than or equal to the first predetermined threshold value, just control the next long green light time in red light track for first green time, control institute
The current long green light time for stating green light track is constant.
Traffic lights duration control method in crossroad provided in an embodiment of the present invention, the quantity of the vehicle according to red light track
The first green time is estimated with species, when the first green time is more than default fixed green time, red light track is obtained
Equivalent flow of the people and the equivalent flow of the people in green light track, if the equivalent people in the equivalent flow of the people in current red light track and green light track
The difference of flow is more than the first predetermined threshold value, then control the next long green light time in red light track for first green time, controls green
The current long green light time in lamp track is constant, i.e., control method of the invention can dynamically adjust traffic lights duration, preferential increase
Green time on the big track of flow of the people, increased traffic efficiency.
Embodiment two
The present embodiment be to the further supplementary notes of above-described embodiment, Fig. 2 for another embodiment of the present invention provide ten
The flow chart of word crossroads traffic light duration control method, as shown in Fig. 2 the method includes：
First information of vehicle flowrate in the current red light track in crossroad is obtained, wherein, information of vehicle flowrate includes the number of vehicle
The length information of amount, species and vehicle, the first green time is obtained according to first information of vehicle flowrate, specifically, including：
Step 2011, obtains the information of vehicle flowrate in the first sub- track and the second sub- track in red light track, wherein, second
Sub- track is opposite with the first sub- driveway travel directions.
Specifically, the first sub- track and the second sub- track are the track of traffic lights both sides, for example, red light track is south
North orientation track, then the wagon flow in the both sides of traffic lights includes driving towards the wagon flow in northern first sub- track by south and by north drives towards south
The wagon flow in the second sub- track.
Step 2012, the information of vehicle flowrate according to the first sub- track obtains the first sub- green time, according to the second sub- track
Information of vehicle flowrate obtain the second sub- green time.
Step 2013, numerical value is big in the first sub- green time of control and the second sub- green time one is used as the first green light
Time.
Specifically, speed that can be according to the equivalent length of the vehicle in the first sub- track divided by vehicle and the first sub- track
The reaction time sum first sub- green time of acquisition of vehicle, T1=N1 × D+M1/v, wherein, T1 is the first sub- green time,
N1 is the quantity of the vehicle in the first sub- track, and D is the time of the reaction time of each vehicle, i.e. each vehicle launch, and M1 is
The equivalent length of one sub- track vehicle, v is the speed of vehicle.
Can be according to the equivalent length of the vehicle in the second sub- track divided by the vehicle in speed and the second sub- track of vehicle
Reaction time sum obtains the second sub- green time, T2=N2 × D+M2/v, wherein, T2 is the second sub- green time, and N2 is the
The quantity of the vehicle in two sub- tracks, M1 is the equivalent length of the first sub- track vehicle.
Big one of numerical value in the first sub- green time T1 and the second sub- green time T2 is controlled as the first green time
T。
Whether step 202, judge the first green time T more than default fixed green time Tg；
If result is for when being, i.e. the first green time is more than default fixed green time Tg, then step 2031, step are performed
Rapid 2032, step 2033, and then perform step 2034.
If the result is negative, then step 2031, step 2032 and step 2033 are skipped, step 204 is directly performed.
Specifically, step 2031, obtains second information of vehicle flowrate in upper red light duration in current green light track,
Weight information, the first information of vehicle flowrate according to default different type vehicle and the second information of vehicle flowrate obtain red light track and
The equivalent flow of the people in green light track.
Step 2032, judges whether the equivalent flow of the people in red light track is more than the equivalent flow of the people in green light track.
Step 2033, if result is yes, and the equivalent flow of the people of the equivalent flow of the people and green light track in red light track difference
More than or equal to the first predetermined threshold value.
Step 204, the first green time of control shows green time during green light, control as red light track next cycle
The current green time in green light track is constant.
If specifically, the first green time T is less than or equal to default fixed green time Tg, illustrating the car in red light track
Flow very little, therefore, it is possible to green time when reducing red light track next cycle display green light, but now green light track is current
Green time it is constant.
Traffic lights duration control method in crossroad provided in an embodiment of the present invention, the vehicle flowrate letter according to the first sub- track
Breath obtains the first sub- green time, and the information of vehicle flowrate according to the second sub- track obtains the second sub- green time, and controls first
Numerical value is big in sub- green time and the second sub- green time one as the first green time so that red light track
Wagon flow dredged completely.The control method that the present embodiment is provided, can dynamically adjust traffic lights duration, preferentially increase the stream of people
Green time on the big track of amount, increased traffic efficiency.
Embodiment three
The present embodiment be to above-described embodiment further explanation illustrate, Fig. 3 for further embodiment of this invention provide ten
The flow chart of word crossroads traffic light duration control method, as shown in figure 3, the method includes：
Step 301, obtains first information of vehicle flowrate in the current red light track in crossroad, is obtained according to the first information of vehicle flowrate
The first green time is taken, wherein, information of vehicle flowrate includes the length information of the quantity, species and vehicle of vehicle.
Wherein, the specific implementation procedure of step 301 is identical to step 2013 with step 2011 in above-described embodiment, herein not
Repeat again.
Whether step 302, judge the first green time more than default fixed green time；
If result is yes, i.e. when the first green time is more than default fixed green time, then obtain current green light track
The second information of vehicle flowrate in upper red light duration, specifically, performing step 303, step 3031, step 3032 or step
3033, and then step 304 is performed, but if the result is negative, i.e. the first green time is less than or equal to default fixed green time
When, then directly perform step 304.
Step 303, according toThe equivalent flow of the people in red light track and green light track is obtained, wherein, LiIt is i
The equivalent flow of the people in track, i values represent red light or green light, AjIt is the weight information of vehicle, n is the quantity of type of vehicle, Xji
It is the vehicle number of j types on i tracks.
Step 3031, judges whether the equivalent flow of the people in red light track is more than the equivalent flow of the people in green light track.
If result for when being, judge the equivalent flow of the people in red light track and the equivalent flow of the people in green light track difference whether
More than the first predetermined threshold value and/or the 3rd predetermined threshold value.
Specifically, result is yes, i.e., the equivalent flow of the people in red light track is more than the equivalent flow of the people in green light track, and red light
The difference of the equivalent flow of the people in track and the equivalent flow of the people in green light track is more than or equal to the first predetermined threshold value, then control red light car
The next long green light time in road is the first green time, and the current long green light time in control green light track is constant.
When the equivalent flow of the people in red light track is more than the equivalent flow of the people in green light track, i.e. LRed light>LGreen lightWhen, wherein, Li
It is the equivalent flow of the people in i tracks, i can represent red light or green light, and also meet：LRed light-LGreen light》During β, wherein, β is first pre-
If threshold value, next long green light time is the first green time, and the current long green light time in control green light track is constant.
Step 3032, if result is yes, and the equivalent flow of the people of the equivalent flow of the people and green light track in red light track difference
During more than or equal to three predetermined threshold values, it is default maximum green time to control the next long green light time in red light track.
Wherein, the 3rd predetermined threshold value is more than the first predetermined threshold value, and maximum green time is more than fixed green time.Wherein,
3rd predetermined threshold value and the first predetermined threshold value are positive number.
When the equivalent flow of the people in red light track is more than the equivalent flow of the people in green light track, i.e. LRed light>LGreen lightWhen, and also it is full
Foot：LRed light-LGreen light》During γ, wherein, γ is the 3rd predetermined threshold value, controls the next long green light time in red light track for default maximum is green
The lamp time.Wherein, when the 3rd predetermined threshold value can prevent vehicle flowrate in red light track excessive, the first acquired long green light time mistake
It is long, then controller can be caused to control next green time in red light track long, therefore control is in LRed light-LGreen light》During γ, control red
The next long green light time in lamp track is default maximum green time.
Step 3033, if the result is negative, then judges the equivalent flow of the people in red light track and the equivalent flow of the people in green light track
Difference whether be more than the second predetermined threshold value, if the difference of the equivalent flow of the people in the equivalent flow of the people in red light track and green light track is more than
Second predetermined threshold value, then control the next long green light time in red light track for default fixed green time, controls working as green light track
Preceding long green light time is constant, wherein, the second predetermined threshold value is negative.
Specifically, when the equivalent flow of the people in red light track is less than the equivalent flow of the people in green light track, that is, meeting：LRed light
《LGreen lightWhen, then judge whether LRed light-LGreen light>δ, wherein, δ is the second predetermined threshold value, and δ is negative.
Wherein, δ is a relative a small amount of compared with the equivalent flow of the people in red light track and green light track, works as LRed light-LGreen light>δ
When, i.e., when the equivalent flow of the people in red light track is more or less the same with the equivalent flow of the people in green light track, then control red light track next
Long green light time is default fixed green time, and the current long green light time in control green light track is constant.
The control method that the present embodiment is provided, can dynamically adjust traffic lights duration, the big car of preferential increase flow of the people
Green time on road, increased traffic efficiency.
Example IV
A kind of crossroad traffic lights duration control device is present embodiments provided, for performing ten in above-described embodiment
Word crossroads traffic light duration control method, the crossroad traffic lights duration control device can be controller, or set
The roadside equipment in both sides of the road is put, or can also be base station.
Wherein, Fig. 4 is the structural representation of traffic lights duration control device in crossroad provided in an embodiment of the present invention, such as
Shown in Fig. 4, the crossroad traffic lights duration control device includes：Acquisition module 401, the first judge module 402 and second are sentenced
Disconnected module 403.
Specifically, acquisition module 401 is used to obtain first information of vehicle flowrate in the current red light track in crossroad, according to the
One information of vehicle flowrate obtains the first green time, wherein, information of vehicle flowrate includes quantity, the species of vehicle and the vehicle of vehicle
Length information.
Red light track refers to the track of currently displaying red light, and the length information of vehicle refers to the length letter of each car
Breath.
Wherein, the first green time can regard the evaluation time evacuated to the wagon flow in current red light track as.Tool
Body, can according to the equivalent length of red light track vehicle divided by the car amount in speed and the red light track of vehicle reaction time it
With obtain the first green time, i.e. T=N × D+M/v, wherein, T be the first green time, N for red light track vehicle number
Amount, D is the time of the reaction time of each vehicle, i.e. each vehicle launch, and the startup time of each vehicle can be considered as homogeneously
Together, M for red light track vehicle equivalent length, v for vehicle speed, wherein, red light track arrangement vehicle on road surface
Distance be the equivalent length of vehicle, because at the parting of the ways, the speed of vehicle will not be very big, therefore can be by all vehicles
Speed be all equivalent to a pre-set velocity, the speed is v.
First judge module 402 is connected with the judge module 403 of acquisition module 401 and second respectively, the first judge module 402
For judging that whether the first green time, more than default fixed green time, if result is yes, obtains current green light track
The second information of vehicle flowrate in upper red light duration, weight information, the first wagon flow according to default different type vehicle
Amount information and the second information of vehicle flowrate obtain the equivalent flow of the people in red light track and green light track.
Wherein, fixed green time can be the long green light time of prior art, it is of course also possible to carry out according to actual needs
Set.If the first green time is more than default fixed green time, if illustrating to fix green time to current red light track
Wagon flow evacuated, then can not completely evacuate the vehicle in current red light track, may there is a certain degree of traffic and gather around
It is stifled.
Second information of vehicle flowrate in upper red light duration in current green light track includes green light in upper red light duration
The length information of the quantity, species and vehicle of the vehicle of track tailback.Upper red light duration in second information of vehicle flowrate
The quantity of interior green light track vehicle can be considered as the vehicle flowrate that green light track is currently being evacuated.
First judge module 402 can carry out obtaining equivalent flow of the people according to the weight information of different type vehicle, wherein,
The weight information of vehicle can carry the quantity of personnel to obtain according to different type vehicle, and then be set in advance in control
In device.For example, bus is 40 in the average passenger occupancy of early evening peak, the average passenger occupancy of private car is 2, and in non-peak
Section, the average passenger occupancy of bus is 20, and the average passenger occupancy of private car is 1.5, be therefore, it can according to different periods for not
The quantity of the carrying personnel of the vehicle of same type, by the weight information of bus default 40 and 20, the weight information of private car is 2
With 1.5, and then the weight information preset into controller.Can be selected by obtaining the kind of information of temporal information and vehicle
Select different weights.It should be noted that bus is 40, the average passenger occupancy of private car in the average passenger occupancy of early evening peak
It is 2, and in off-peak period, the average passenger occupancy of bus is 20, the average passenger occupancy of private car is 1.5, simply exemplary
Explanation, actual bus can be united in advance in average passenger occupancy, the average passenger occupancy of private car etc. of early evening peak
Meter.
It is interchangeable, it is also possible to the weight information acquisition controller of vehicle can not in real time to be obtained into vehicle and currently carry people
The information of member's quantity, now, then without default weight information.
Second judge module 403 is used to judge whether the equivalent flow of the people in red light track to be more than the equivalent stream of people in green light track
Amount, if result is yes, and the difference of the equivalent flow of the people of the equivalent flow of the people and green light track in red light track is more than or equal to first
Predetermined threshold value, then control the next long green light time in red light track for the first green time, the current long green light time in control green light track
It is constant.
On the basis of the first green time is more than default fixed green time, when the equivalent flow of the people in red light track is big
When the equivalent flow of the people in green light track, illustrate that the stream of people in red light track is more, current green light track can be considered as red with current
Fail in the competition in lamp track, therefore, to dredge based on current red light track, therefore the control red light car of the second judge module 403
The next long green light time in road is the first green time, and controls the current long green light time in green light track constant.In addition, red light track
If equivalent flow of the people is more or less the same with the equivalent flow of the people in green light track, carried out without the next long green light time to red light track
Change, it is default fixed green time still to control the next long green light time in red light track.Therefore, only in red light track
Equivalent flow of the people be greater than the equivalent flow of the people in green light track, and the equivalent flow of the people in red light track is equivalent with green light track
When the difference of flow of the people is more than or equal to the first predetermined threshold value, when just controlling the next long green light time in red light track for first green light
Between, control the current long green light time in the green light track constant.
Traffic lights duration control device in crossroad provided in an embodiment of the present invention, the quantity of the vehicle according to red light track
With species obtain the first green time, the first judge module 402 the first green time be more than default fixed green time when,
Obtain the equivalent flow of the people in red light track and the equivalent flow of the people in green light track, the second judge module 403 red light track etc.
When the difference of the equivalent flow of the people in effect flow of the people and green light track is more than the first predetermined threshold value, the next long green light time in red light track is controlled
It is first green time, the current long green light time in control green light track is constant, i.e., control method of the invention can be dynamic
Adjustment traffic lights duration, the green time on the big track of preferential increase flow of the people increased traffic efficiency.
Embodiment five
The present embodiment is to above-described embodiment further explanation explanation.On the basis of above-described embodiment, the present embodiment
Acquisition module 401 specifically for obtaining the information of vehicle flowrate in the first sub- track and the second sub- track in red light track, wherein,
Second sub- track is with the first sub- driveway travel directions conversely, being additionally operable to obtain the first son according to the information of vehicle flowrate in the first sub- track
Green time, information of vehicle flowrate according to the second sub- track obtains the second sub- green time, the first sub- green time of control and the
Numerical value is big in two sub- green times one is used as the first green time.
Acquisition module 401 is additionally operable to basisThe equivalent flow of the people in red light track and green light track is obtained, its
In, LiIt is the equivalent flow of the people in i tracks, i values represent red light or green light, AjIt is the weight information of vehicle, n is type of vehicle
Quantity, XjiIt is the vehicle number of j types on i tracks.
First judge module 402 is additionally operable to judging whether the first green time is more than the knot of default fixed green time
When fruit is no, the first green time of control shows green time during green light as red light track next cycle, controls described green
The current green time in lamp track is constant.
The equivalent flow of the people that second judge module 403 is additionally operable in red light track is equivalent less than or equal to green light track
During flow of the people, judge whether the equivalent flow of the people in red light track and the difference of the equivalent flow of the people in green light track preset threshold more than second
Value, if result is yes, controls the next long green light time in red light track for the default fixed green time, control green light track
Current long green light time is constant, wherein, second predetermined threshold value is negative.
Whether the second judge module 403 is additionally operable to equivalent more than green light track in the equivalent flow of the people for judging red light track
The result of flow of the people be it is yes, and the equivalent flow of the people of the equivalent flow of the people and green light track in the red light track difference be more than or wait
When three predetermined threshold values, the next long green light time in red light track is controlled for default maximum green time, wherein, the described 3rd is pre-
If threshold value is more than first predetermined threshold value, the maximum green time is more than the fixed green time.
Traffic lights duration control device in crossroad provided in an embodiment of the present invention, acquisition module 401 is according to the first sub- car
The information of vehicle flowrate in road obtains the first sub- green time, when the information of vehicle flowrate according to the second sub- track obtains the second sub- green light
Between, and numerical value is big in the first sub- green time of control and the second sub- green time one is used as the first green time, so that can
To cause that the wagon flow in red light track is dredged completely.The control method that the present embodiment is provided, when dynamically can adjust traffic lights
Long, the green time on the big track of preferential increase flow of the people increased traffic efficiency.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, the ordinary skill passenger of this area should be understood：It still may be used
Modified with to the technical scheme described in foregoing embodiments, or equivalent is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (10)
1. a kind of crossroad traffic lights duration control method, it is characterised in that including：
First information of vehicle flowrate in the current red light track in crossroad is obtained, it is green to obtain first according to first information of vehicle flowrate
The lamp time, wherein, the information of vehicle flowrate includes the length information of the quantity, the species of vehicle and vehicle of vehicle；
Judge that whether first green time, more than default fixed green time, if result is yes, obtains current green light
Second information of vehicle flowrate in upper red light duration in track, according to weight information, first of default different type vehicle
Information of vehicle flowrate and the second information of vehicle flowrate obtain the equivalent flow of the people in red light track and green light track；
Judge whether the equivalent flow of the people in red light track is more than the equivalent flow of the people in green light track, if result is yes, and it is described red
The difference of the equivalent flow of the people in lamp track and the equivalent flow of the people in green light track is more than or equal to the first predetermined threshold value, then control described
The next long green light time in red light track is first green time, controls the current long green light time in the green light track constant.
2. traffic lights duration control method in crossroad according to claim 1, it is characterised in that the acquisition four crossway
First information of vehicle flowrate in the current red light track of mouth, the first green time is obtained according to first information of vehicle flowrate, including：
Obtain the information of vehicle flowrate in the first sub- track and the second sub- track in red light track, wherein, the second sub- track with
First sub- driveway travel directions are opposite；
Information of vehicle flowrate according to the described first sub- track obtains the first sub- green time；
Information of vehicle flowrate according to the described second sub- track obtains the second sub- green time；
Big one of numerical value in the first sub- green time and the second sub- green time is controlled as the first green time.
3. traffic lights duration control method in crossroad according to claim 1, it is characterised in that judge that described first is green
Whether the lamp time is more than default fixed green time, if the result is negative, then controls the first green time as under red light track
Green time during one cycle display green light, controls the current green time in the green light track constant.
4. traffic lights duration control method in crossroad according to claim 1, it is characterised in that according to default difference
The weight information of the vehicle of type, the first information of vehicle flowrate and the second information of vehicle flowrate obtain red light track and green light track etc.
Effect flow of the people includes：
According toThe equivalent flow of the people in red light track and green light track is obtained, wherein, LiIt is the equivalent stream of people in i tracks
Amount, i values represent red light or green light, AjIt is the weight information of vehicle, n is the quantity of type of vehicle, XjiIt is j types on i tracks
Vehicle number.
5. traffic lights duration control method in crossroad according to claim 1, it is characterised in that also include：If described
The equivalent flow of the people in red light track judges the equivalent stream of people in the red light track less than or equal to the equivalent flow of the people in green light track
Whether the difference of the equivalent flow of the people in amount and green light track is more than the second predetermined threshold value, if result is yes, control red light track is next
Long green light time is the default fixed green time, and the current long green light time in control green light track is constant, wherein, described second
Predetermined threshold value is negative.
6. a kind of crossroad traffic lights duration control device, it is characterised in that including：
Acquisition module, the first information of vehicle flowrate for obtaining the current red light track in crossroad, according to first vehicle flowrate
The green time of acquisition of information first, wherein, the information of vehicle flowrate includes the length of the quantity, the species of vehicle and vehicle of vehicle
Degree information；
First judge module, for whether judging first green time more than default fixed green time, if result is
It is the second information of vehicle flowrate in upper red light duration for then obtaining current green light track, according to default different type car
Weight information, the first information of vehicle flowrate and the second information of vehicle flowrate obtain the equivalent stream of people in red light track and green light track
Amount；
Whether the second judge module, the equivalent flow of the people for judging red light track is more than the equivalent flow of the people in green light track, if
Result is yes, and the difference of the equivalent flow of the people of the equivalent flow of the people and green light track in the red light track is pre- more than or equal to first
If threshold value, then the next long green light time in red light track is controlled for first green time, control working as the green light track
Preceding long green light time is constant.
7. traffic lights duration control device in crossroad according to claim 6, it is characterised in that the acquisition module tool
Body is used to obtain the information of vehicle flowrate in the first sub- track and the second sub- track in red light track, wherein, the second sub- track
It is opposite with the first sub- driveway travel directions；
It is additionally operable to obtain the first sub- green time according to the information of vehicle flowrate in the described first sub- track, according to the described second sub- track
Information of vehicle flowrate obtain the second sub- green time, control the first sub- green time and the second sub- green time in numerical value it is big one
It is individual as the first green time.
8. traffic lights duration control device in crossroad according to claim 6, it is characterised in that described first judges mould
Block is additionally operable to when judging whether first green time is more than the result of default fixed green time for no, control first
Green time shows green time during green light as red light track next cycle, during the green light for controlling the green light track current
Between it is constant.
9. traffic lights duration control device in crossroad according to claim 6, it is characterised in that the acquisition module tool
Body is used for basisThe equivalent flow of the people in red light track and green light track is obtained, wherein, LiIt is equivalent for i tracks
Flow of the people, i values represent red light or green light, AjIt is the weight information of vehicle, n is the quantity of type of vehicle, XjiIt is j on i tracks
The vehicle number of type.
10. traffic lights duration control device in crossroad according to claim 6, it is characterised in that described second judges
Module is additionally operable to, when the equivalent flow of the people in the red light track is less than or equal to the equivalent flow of the people in green light track, judge described
Whether the difference of the equivalent flow of the people in red light track and the equivalent flow of the people in green light track is more than the second predetermined threshold value, if result is
It is to control the next long green light time in red light track for the default fixed green time, during the current green light in control green light track
Length is constant, wherein, second predetermined threshold value is negative.
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| CN114387799B (en) * | 2021-12-27 | 2022-12-23 | 山东浪潮工业互联网产业股份有限公司 | Intersection traffic light control method and equipment |
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