CN109584564A - A kind of letter prosecutor case being applicable in more equipment implements optimization method and its system and device - Google Patents
A kind of letter prosecutor case being applicable in more equipment implements optimization method and its system and device Download PDFInfo
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- CN109584564A CN109584564A CN201811582752.8A CN201811582752A CN109584564A CN 109584564 A CN109584564 A CN 109584564A CN 201811582752 A CN201811582752 A CN 201811582752A CN 109584564 A CN109584564 A CN 109584564A
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0137—Measuring and analyzing of parameters relative to traffic conditions for specific applications
- G08G1/0145—Measuring and analyzing of parameters relative to traffic conditions for specific applications for active traffic flow control
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/07—Controlling traffic signals
- G08G1/08—Controlling traffic signals according to detected number or speed of vehicles
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Abstract
The present invention relates to a kind of letter prosecutor cases for being applicable in more equipment to implement optimization system, comprising: for detecting terminal detection device of the vehicle by signal；The data processing module of parsing letter control protocol and vehicle head interval distribution and accounting data；The logic processing module of judgement and lane signature is carried out to the time headway appearance model in each lane；Data-optimized to letter prosecutor case and test optimization and test module；Letter after receiving optimization controls protocol and controls the control centre of signal controlling machine；Signal controlling machine receives and executes the letter control protocol after optimization；Communication module for data receiver and transmission between each component part.The present invention can be applicable in multiple terminal detection device, it is simple that algorithm is related to parameter, arithmetic speed is fast, signal timing plan adjustment is timely, method of adjustment is more scientific, merges advanced data mining algorithm, and depth excavates the distribution meaning guidance letter control scheme optimization of time headway, scientific strong, optimum results are reliable.
Description
Technical field
The present invention relates to control technology field more particularly to it is a kind of be applicable in more equipment letter prosecutor case implement optimization method and
Its system and device.
Background technique
The most of signal-control crossing in China, which is administered, at present determines scheme control mode using whole day segmentation, is based on history
Data formulate several according to the traffic flow character of whole day day part and fix timing scheme, use in different periods.This letter control
The shortcomings that method, is as follows:
1. signal-control crossing resolution is the fixed solution based on historical data, bad adaptability can not be handed over real-time
The feedback of logical changed condition, causes letter prosecutor case inefficient or invalid；
2. the adjustment of letter prosecutor case needs to rely on artificial experience, lack science, due to lack of wisdom means, Duo Dizhi
Energy transport development level is not high, and signal timing plan optimization is manually finely tuned dependent on traffic management department, not only needs a large amount of people
Power, and lack science, effect is poor；
3. the type selecting of pair checkout facility has constraint, the optimization of signal timing plan depends on the detection to traffic flow situation,
Existing method is limited to specific detection device, such as detection coil, video equipment more, and is not widely deployed for a variety of set
Standby, since various regions construction of high-tech traffic system level is different, facility deliverability is variant, the application of these methods is very limited.Mesh
Preceding common detection method is coil working matingly to be felt by signal controlling machine, and ground induction coil is easy because passing wagon flow is frequent
Easy to damage, replacement needs brokenly road to close a road to traffic, and not only influences traffic flow but also influences road beauty, but also reliability is bad；
4. algorithm is related to index complexity, it is difficult to understand, current But most of algorithms is because of limited reliability, to the sheet of traffic flow
Matter holds deficiency, introduces a large amount of reference indexs and mutually corrects, the algorithm of formation is extremely complex, or even sometimes contradictory between index
The case where occur, lead to algorithm reliability decrease；
5. deficiency is considered for data mining related algorithm, in recent years as big data analysis digging technology is constantly sent out
Exhibition, original transport data processing mode face extension, this advantage does not play completely yet in terms of signal controls optimization, existing
Method still mostly use simple statistical analysis mode and traffic engineering algorithm, efficiency and analysis dimension have to be hoisted；
6. manually with intelligent hyposynergia, urban traffic control at present work be increasingly dependent on intelligent means, but
Intelligent equipment or algorithm may be because that data acquisition equipment failure or study depth deficiency etc. lead to the problem of resultant error, need
With real data carry out verification and human assistance training pattern, but at present majority methods ignore this premise, too early completely according to
The immature intelligent algorithm of Lai Yu lacks checkout procedure.
Summary of the invention
Technical problem to be solved by the invention is to provide one kind, to be applicable in a variety of detection devices, Con trolling index simple and reliable
Property the strong letter prosecutor case for being applicable in more equipment implement optimization method and its system and device.
In order to solve the above technical problems, the technical scheme is that a kind of letter prosecutor case implementation for being applicable in more equipment is excellent
Change method, comprising the following steps:
Pass through signal by the vehicle that terminal detection device obtains each lane；
Original letter prosecutor case number is obtained by the time headway data that signal resolution goes out each divided lane according to the vehicle
According to the letter control protocol specifically includes: by carrying out time series analysis, obtained letter control to the time headway data
Through lane group, the phase sequence of each phase and duration included by multiple phases of scheme, each phase, when believing the period of prosecutor case
It is long；
The time headway in each lane is subjected to collection meter analysis, obtains the vehicle head interval distribution situation and time headway in each lane
Accounting data are excluded according to letter control protocol because of time headway accounting data, each vehicle during obtaining green light caused by waiting red lights
The actual vehicle head interval distribution in road and accounting data；
Ideal time headway appearance model and ideal lane feature are set, the time headway appearance model in each lane is carried out
Judgement, and signature is carried out to each lane；
Letter control protocol is optimized and tested, after the letter control protocol after making optimization is implemented, each lane
Time headway appearance model and each lane signature and the ideal time headway appearance model and ideal lane feature
It is consistent.
The vehicle is that the vehicle with timestamp passes through record data by signal as a preferred technical solution,.
It as a preferred technical solution, further include that non-structured vehicle is converted into the vehicle with timestamp by signal
By record data.
The time headway appearance model includes ideal type, without being lined up the sparse type of vehicle, have as a preferred technical solution,
It is lined up later period waste type, has queuing saturation type and interference type, the lane signature includes ideal lane, interference lane, mistake
It is saturated lane and inefficient lane, the method also includes: judge whether the supersaturated lane is gathered in same phase, obtains institute
State the supersaturated phase of supersaturated lane aggregation；Judge whether the inefficient lane is gathered in same phase, obtains described inefficient
The inefficient phase of lane aggregation.
Time headway appearance model is judged as a preferred technical solution, and carries out the specific steps packet of lane signature
It includes:
Generate the time headway curve that the time headway in each lane changes over time；
When the through lane group includes multiple lanes, in a cycle of letter prosecutor case, if when the headstock of vehicle
Away from and time headway curve is without obvious fluctuation, then when the headstock in the lane when away from the safe bus head for being equal or slightly larger than setting
It is ideal type away from appearance model；
Away from time headway curve has fluctuation and complete period when if the time headway of vehicle is significantly greater than the safe bus head set
High level is maintained, then the time headway appearance model in the lane is without being lined up the sparse type of vehicle；
Away from time headway curve was stablized without significant fluctuation, later period when if the time headway of vehicle early period is close to safe bus head
Away from then the time headway appearance model in the lane is that have to be lined up later period waste type when time headway is significantly greater than safe bus head；
When if time headway is close to or smaller than safe bus head in whole cycle away from, and occasionally less than safe bus head when away from
Level, the fluctuation of time headway curve is small, then the time headway appearance model in the lane is that have queuing saturation type；
Away from and time headway curve has larger fluctuation, later period headstock when if initial stage time headway is significantly greater than safe bus head
When away from when moving closer to safe bus head away from time headway curve is gradually stable, then the time headway appearance model in the lane is
Interference type；
If the time headway appearance model in the lane is ideal type, the lane is ideal lane；
If the time headway appearance model in the lane is interference type, the lane is interference lane；
If the time headway appearance model in the lane be without be lined up the sparse type of vehicle or have be lined up later period waste type, institute
Stating lane is inefficient lane；
If the time headway appearance model in the lane is that have queuing saturation type, the lane is supersaturated lane.
The specific steps of lane signature are carried out as a preferred technical solution, further include:
When the through lane group is bicycle road, if time headway number of the time headway less than 5s accounts for vehicle in the same period
Time headway number of the ratio away from number less than the first given threshold or time headway greater than 15s accounts for vehicle in the same period when head
The ratio away from number is greater than the second given threshold when head, then the lane is inefficient lane；
If time headway adduction of the time headway less than 3s, which accounts for the lane of same period distribution green time toatl proportion, is greater than the
Three given thresholds, then the lane is supersaturated lane.
It as a preferred technical solution, further include that the letter control protocol after optimization is sent to control centre or signal control
The step of machine processed and the control centre send signal controlling machine after testing the letter control protocol after optimization.
A kind of letter prosecutor case implementation optimization system being applicable in more equipment, comprising:
For detecting terminal detection device of the vehicle by signal；
The vehicle is received by signal, and obtain original letter by the time headway data of each divided lane parsed
The data processing module of each lane actual vehicle head interval distribution and accounting data during control protocol and green light；
The time headway appearance model in each lane is judged, and signature is carried out to each lane, is satiated
With the logic processing module of the inefficient phase of the supersaturated phase and inefficient lane aggregation of lane aggregation；
The optimization and test module that original letter control protocol is optimized and tested；
Letter control protocol after receiving optimization sends signal control after testing the letter control protocol after optimization
The control centre of machine；
Signal controlling machine receives and executes the letter control protocol after optimization；
Communication module for data receiver and transmission between each component part.
As a preferred technical solution, the terminal detection device be ground induction coil, wireless geomagnetism, can detect simultaneously it is multiple
The microwave equipment in lane or the video detecting device for having virtual coil function.
A kind of letter prosecutor case implementation optimization device being applicable in more equipment, comprising: receive the vehicle by signal, and pass through
The time headway data of each divided lane parsed each lane reality during obtaining original letter control protocol and green light
Vehicle head interval distribution and accounting data data processing module；
The time headway appearance model in each lane is judged, and signature is carried out to each lane, is satiated
With the logic processing module of the inefficient phase of the supersaturated phase and inefficient lane aggregation of lane aggregation；
The optimization and test module that original letter control protocol is optimized and tested；
For carrying out the communication module of data receiver and transmission with other equipment.
By adopting the above-described technical solution, the beneficial effects of the present invention are:
(1) it is applicable in multiple terminal detection device, is not limited to tradition easily damaged induction coil or expensive video
Equipment can be applied to the horizontal different each scene of traffic intelligence；
(2) algorithm is related to that parameter is simple, and focus utilization time headway is analyzed, and algorithm is readily appreciated that, can be convenient root
It is optimized according to actual conditions, arithmetic speed is fast, and signal timing plan adjustment is timely；
(3) data basis for believing prosecutor case is real time data rather than historical data, and method of adjustment is more scientific, can recycle
Continuous optimization, it is round-the-clock that the letter prosecutor case for adapting to traffic flow variation is provided；
(4) advanced data mining algorithm is merged, traditional statistic algorithm is substituted and data is analyzed, independent of people
Work experience, depth excavates the distribution meaning guidance letter control scheme optimization of time headway, scientific strong.Whole each stage can produce respectively
Alanysis image is used for explanation reference；
(5) developing stage of artificial intelligence and adaptive algorithm is fully considered, it is during model training or special to allow
In the case of will differentiate that being sent to control centre with optimum results carries out further decision, can send excellent automatically after model training is mature
Change result directly to execute to signal controlling machine, combines the advantage of all kinds of operation algorithms, guarantee the reliability of result.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is the work flow diagram that a kind of letter prosecutor case for being applicable in more equipment of the embodiment of the present invention implements prioritization scheme；
Fig. 2 is the topological diagram that a kind of letter prosecutor case for being applicable in more equipment of the embodiment of the present invention implements optimization system.
Specific embodiment
A kind of letter prosecutor case implementation optimization method being applicable in more equipment, comprising the following steps:
Pass through signal by the vehicle that terminal detection device obtains each lane；
Original letter control protocol is obtained by the time headway data that signal resolution goes out each divided lane according to vehicle, is believed
Control protocol specifically includes: by carrying out time series analysis to time headway data, multiple phases of obtained letter prosecutor case
Through lane group, the phase sequence of each phase and duration included by position, each phase, the cycle duration for believing prosecutor case；
The time headway in each lane is subjected to collection meter analysis, obtains the vehicle head interval distribution situation and time headway in each lane
Accounting data are excluded according to letter control protocol because of time headway accounting data, each vehicle during obtaining green light caused by waiting red lights
The actual vehicle head interval distribution in road and accounting data；
Ideal time headway appearance model and ideal lane feature are set, the time headway appearance model in each lane is carried out
Judgement, and signature is carried out to each lane；
Letter control protocol is optimized and tested, after the letter control protocol after making optimization is implemented, the vehicle in each lane
Signature when head away from appearance model and each lane is consistent with ideal time headway appearance model and ideal lane feature.
Preferably, vehicle is that the vehicle with timestamp passes through record data by signal.
Preferably, this method further includes that non-structured vehicle is converted to the vehicle with timestamp by signal to pass through
Record data.
In the present embodiment, time headway appearance model include ideal type, without be lined up the sparse type of vehicle, have be lined up the later period waste
Type has queuing saturation type and interference type, and lane signature includes ideal lane, interference lane, supersaturated lane and inefficient vehicle
Road.
Judge that time headway appearance model includes: with the specific steps for carrying out lane signature
Generate the time headway curve that the time headway in each lane changes over time；
When through lane group includes multiple lanes, in a cycle of letter prosecutor case, if the time headway etc. of vehicle
In or slightly larger than setting safe bus head when away from and time headway curve is without obvious fluctuation, then the time headway form mould in lane
Type is ideal type；
Away from time headway curve has fluctuation and complete period when if the time headway of vehicle is significantly greater than the safe bus head set
High level is maintained, then the time headway appearance model in lane is without being lined up the sparse type of vehicle；
Away from time headway curve was stablized without significant fluctuation, later period when if the time headway of vehicle early period is close to safe bus head
Away from then the time headway appearance model in lane is that have to be lined up later period waste type when time headway is significantly greater than safe bus head；
When if time headway is close to or smaller than safe bus head in whole cycle away from, and occasionally less than safe bus head when away from
Level, the fluctuation of time headway curve is small, then the time headway appearance model in lane is that have queuing saturation type；
Away from and time headway curve has larger fluctuation, later period headstock when if initial stage time headway is significantly greater than safe bus head
When away from when moving closer to safe bus head away from time headway curve is gradually stable, then the time headway appearance model in lane is interference
Type；
If the time headway appearance model in lane is ideal type, lane is ideal lane；
If the time headway appearance model in lane is interference type, lane is interference lane；
If the time headway appearance model in lane be without be lined up the sparse type of vehicle or have be lined up later period waste type, lane is
Inefficient lane；
If the time headway appearance model in lane is that have queuing saturation type, lane is supersaturated lane.
When through lane group is bicycle road, if time headway number of the time headway less than 5s accounts for headstock in the same period
When time headway number of the ratio away from number less than the first given threshold or time headway greater than 15s accounts for headstock in the same period
Ratio away from number is greater than the second given threshold, then lane is inefficient lane；
If time headway adduction of the time headway less than 3s, which accounts for the lane of same period distribution green time toatl proportion, is greater than the
Three given thresholds, then lane is supersaturated lane.
Judge whether supersaturated lane is gathered in same phase, obtains the supersaturated phase of supersaturated lane aggregation；Judgement
Whether inefficient lane is gathered in same phase, obtains the inefficient phase of inefficient lane aggregation.
This method further includes that the letter control protocol after optimization is sent to control centre or signal controlling machine, and control
The step of center sends signal controlling machine after testing the letter control protocol after optimization.
A kind of letter prosecutor case implementation optimization system being applicable in more equipment, comprising:
For detecting terminal detection device of the vehicle by signal, preferred terminal detection device is ground induction coil, wireless
Earth magnetism can detect simultaneously the microwave equipment in multiple lanes or have the video detecting device of virtual coil function；
Vehicle is received by signal, and obtain original letter prosecutor by the time headway data of each divided lane parsed
The data processing module of each lane actual vehicle head interval distribution and accounting data during case data and green light；
The time headway appearance model in each lane is judged, and signature is carried out to each lane, is satiated
With the logic processing module of the inefficient phase of the supersaturated phase and inefficient lane aggregation of lane aggregation；
The optimization and test module that original letter control protocol is optimized and tested；
Signal control occurs after testing the letter control protocol after optimization for the letter control protocol after receiving optimization
The control centre of machine；
Signal controlling machine receives and executes the letter control protocol after optimization；
Communication module for data receiver and transmission between each component part.
A kind of letter prosecutor case implementation optimization device being applicable in more equipment, comprising: receive vehicle by signal, and pass through parsing
The time headway data of each divided lane out each actual vehicle in lane during obtaining original letter control protocol and green light
The data processing module of head headway distribution! and accounting data；
The time headway appearance model in each lane is judged, and signature is carried out to each lane, is satiated
With the logic processing module of the inefficient phase of the supersaturated phase and inefficient lane aggregation of lane aggregation；
The optimization and test module that original letter control protocol is optimized and tested；
For carrying out the communication module of data receiver and transmission with other equipment.
The working principle of the embodiment of the present invention is described in detail with reference to the accompanying drawing:
As Fig. 1 to Fig. 2 jointly shown in, terminal detection device uploads the vehicle in multiple lanes in real time and passes through signal, terminal inspection
Measurement equipment is ground induction coil, wireless geomagnetism, can detect simultaneously the microwave equipment in multiple lanes and have the view of virtual coil function
The one of which such as frequency detection device；
Data processing module receives the vehicle transmitted by terminal device by signal, and vehicle is that having time is stabbed by signal
Vehicle is by record data, and still, the incoming data of terminal detection device may be unstructured data (such as video), need by
Structuring processing is converted into structural data, i.e. the vehicle with timestamp passes through record data.
Vehicle with timestamp is the time headway number of divided lane statistics by record data processing by data processing module
According to:
Difference processing is done by recording data to the vehicle with timestamp, obtains the time headway data of divided lane；
Time series analysis is carried out to time headway, obtains the through lane group that each phase of letter prosecutor case includes, and obtain
The phase sequence and duration of each phase；
Clustering is carried out to whole time headway points, obtains the cycle duration of letter prosecutor case；
Logic processing module carries out collection meter analysis to each lane time headway, obtains the vehicle head interval distribution situation of divided lane
With time headway accounting situation, it is described by respectively with cylindricality distribution map and pie chart；
Using cluster and mode identification method, time headway curve that the time headway in each lane is changed over time into
Then row classification removes time headway to be formed because of red light etc. in vehicle head interval distribution and time headway accounting analysis result,
To avoid interference, each actual vehicle head interval distribution in lane and accounting data during obtaining green light,
In conjunction with each lane time headway form situation and existing time headway appearance model, using aspect ratio to, mould
The modes such as formula identification, clustering judge the affiliated time headway appearance model in each lane:
When through lane group is multilane, the judgment criteria of time headway appearance model is as follows:
(1) ideal type: horizontal continuity when vehicle is to be equal or slightly larger than safe bus head away from T0 passes through, and time curve is stablized
Without significant fluctuation；
(2) without being lined up the sparse type of vehicle: level when vehicle is to be significantly greater than safe bus head away from T0 passes through, and time curve is deposited
It is fluctuating, and whole process maintains big value；
(3) have be lined up later period waste type: the level when vehicle later period is to be significantly greater than safe bus head away from T0 passes through, when away from song
Line relatively stable nothing early period significantly fluctuates, but numerical value is smaller, when close to safe bus head away from；
(4) have a queuing saturation type: in whole cycle the lane time headway to approach safe bus head when the level away from T0
When closely continuing through, and being shown as being less than safe bus head once in a while away from level, relative ideal type obviously has unstable situation；
(5) interference type: away from T0 when curve initial stage time headway is significantly greater than safe bus head, and having larger fluctuation, the later period by
Gradually stable, time headway level is gradually fallen after rise, is shown as vehicle and is continued through.
Lane signature setting standard is as follows: time headway appearance model is that the lane of ideal type is ideal lane, nothing
Being lined up the sparse type of vehicle and having the lane for being lined up later period waste type is inefficient lane, and the lane of interference type is interference lane, there is row
The lane of team's saturation type is supersaturated lane.
When through lane group is bicycle road, it is as follows that standard is arranged in lane signature:
(1) ratio that time headway number of each lane time headway less than 5s accounts for time headway number in the same period is compared
PS5 and given threshold P5；
(2) ratio that time headway number of each lane time headway greater than 15s accounts for time headway number in the same period is compared
Example PS15 and given threshold P15；
(3) it is total to account for the lane of same period distribution green time for the time headway adduction that each lane time headway of comparison is less than 3s
Ratio T3s and given threshold T3；
As PS5<P5 or PS15>P15, which is inefficient lane；
As T3s > T3, which is supersaturated lane.
Optimization and test module will analyze result and carry out timing designing, confirm whether supersaturated lane and inefficient lane assemble
In the same phase, the case where if there is multiple aggregation, illustrate that the setting of phase duration is unreasonable, to set step-length from inefficient phase
To supersaturated phase shift green time resource；
Such as find that phase aggregation is in confused situation aobvious, inefficient lane and supersaturated lane distribution are not concentrated, or discovery interference vehicle
Then there is the unreasonable problem of Signal Phase Design in road, control centre need to be notified to carry out phase adjustment.
Letter adjusted is controlled into protocol, is analyzed, is generated excellent in conjunction with corresponding intersection traffic engineering canalization scheme
Letter prosecutor case after change,
Prosecutor case is believed after optimization, selects the recipient of prioritization scheme and transmission according to actual needs, comprising:
(1) scheme inspection is carried out by control centre, signal controlling machine is sent to by control centre after and is executed, is utilized
The letter control protocol obtained from the synchronous verification of the practical letter control protocol obtained from signal controlling machine, after ensuring optimization
Letter control protocol is reliably accurate, otherwise should be further to model training；It is excellent in conjunction with phase and timing designing strategy generating
Change scheme is sent to signal controlling machine execution, and constantly test loop process, Continuous optimization.
(2) algoritic module after training is mature, obtained prioritization scheme can not be directly uploaded to by control centre
Signal controlling machine executes.
Client can according to actual needs, and selecting prioritization scheme to be transmitted directly to, signal controlling machine executes or prioritization scheme transmits
To control centre, receives audit intervention and retransmit to signal controlling machine end.
The above shows and describes the basic principle, main features and advantages of the invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (10)
1. a kind of letter prosecutor case for being applicable in more equipment implements optimization method, which comprises the following steps:
Pass through signal by the vehicle that terminal detection device obtains each lane；
Original letter control protocol, institute are obtained by the time headway data that signal resolution goes out each divided lane according to the vehicle
It states letter control protocol to specifically include: by carrying out time series analysis, obtained letter prosecutor case to the time headway data
Multiple phases, through lane group, the phase sequence of each phase and duration included by each phase, the cycle duration for believing prosecutor case；
The time headway in each lane is subjected to collection meter analysis, obtains the vehicle head interval distribution situation and time headway accounting in each lane
Data are excluded according to letter control protocol because of time headway accounting data caused by waiting red lights, and each lane is real during obtaining green light
The vehicle head interval distribution and accounting data on border；
Ideal time headway appearance model and ideal lane feature are set, the time headway appearance model in each lane is sentenced
It is disconnected, and signature is carried out to each lane；
Test is optimized and trains to letter control protocol, after the letter control protocol after making optimization is implemented, each lane
Time headway appearance model and each lane signature and the ideal time headway appearance model and ideal lane feature
It is consistent.
2. a kind of letter prosecutor case for being applicable in more equipment as described in claim 1 implements optimization method, it is characterised in that: the vehicle
By signal be with timestamp vehicle by record data.
3. a kind of letter prosecutor case for being applicable in more equipment as claimed in claim 2 implements optimization method, it is characterised in that: further include
Non-structured vehicle is converted into the vehicle with timestamp by signal and passes through record data.
4. a kind of letter prosecutor case for being applicable in more equipment as described in claim 1 implements optimization method, it is characterised in that: the vehicle
It away from appearance model include ideal type, without being lined up the sparse type of vehicle, and had the later period waste type that is lined up, have and be lined up saturation type and interference when head
Type, the lane signature include ideal lane, interfere lane, supersaturated lane and inefficient lane, the method also includes:
Judge whether the supersaturated lane is gathered in same phase, obtains the supersaturated phase of the supersaturated lane aggregation；Judgement
Whether the inefficient lane is gathered in same phase, obtains the inefficient phase of the inefficient lane aggregation.
5. a kind of letter prosecutor case for being applicable in more equipment as claimed in claim 4 implements optimization method, it is characterised in that: judge vehicle
Include: with the specific steps for carrying out lane signature away from appearance model when head
Generate the time headway curve that the time headway in each lane changes over time；
When the through lane group includes multiple lanes, in a cycle of letter prosecutor case, if the time headway etc. of vehicle
In or slightly larger than setting safe bus head when away from and time headway curve is without obvious fluctuation, then the time headway shape in the lane
States model is ideal type；
Away from time headway curve has fluctuation and the complete period maintains when if the time headway of vehicle is significantly greater than the safe bus head set
In high level, then the time headway appearance model in the lane is without being lined up the sparse type of vehicle；
Away from time headway curve is stablized without significant fluctuation, later period headstock when if the time headway of vehicle early period is close to safe bus head
When away from significantly greater than safe bus head when away from, then the time headway appearance model in the lane be have be lined up later period waste type；
When if time headway is close to or smaller than safe bus head in whole cycle away from, and occasionally less than safe bus head when away from water
Flat, the fluctuation of time headway curve is small, then the time headway appearance model in the lane is that have queuing saturation type；
Away from and time headway curve has larger fluctuation, later period time headway when if initial stage time headway is significantly greater than safe bus head
Away from time headway curve is gradually stable, then the time headway appearance model in the lane is interference when moving closer to safe bus head
Type；
If the time headway appearance model in the lane is ideal type, the lane is ideal lane；
If the time headway appearance model in the lane is interference type, the lane is interference lane；
If the time headway appearance model in the lane be without be lined up the sparse type of vehicle or have be lined up later period waste type, the vehicle
Road is inefficient lane；
If the time headway appearance model in the lane is that have queuing saturation type, the lane is supersaturated lane.
6. a kind of letter prosecutor case for being applicable in more equipment as claimed in claim 4 implements optimization method, it is characterised in that: carry out vehicle
The specific steps of road signature further include:
When the through lane group is bicycle road, if time headway number of the time headway less than 5s accounts for headstock in the same period
When time headway number of the ratio away from number less than the first given threshold or time headway greater than 15s accounts for headstock in the same period
Ratio away from number is greater than the second given threshold, then the lane is inefficient lane；
If time headway adduction of the time headway less than 3s accounts for the lane of same period distribution green time toatl proportion and sets greater than third
Determine threshold value, then the lane is supersaturated lane.
7. a kind of letter prosecutor case for being applicable in more equipment as described in claim 1 implements optimization method, it is characterised in that: further include
Letter control protocol after optimization is sent to control centre or signal controlling machine and the control centre to the letter after optimization
The step of control protocol sends signal controlling machine after being tested.
8. a kind of letter prosecutor case for being applicable in more equipment implements optimization system characterized by comprising
For detecting terminal detection device of the vehicle by signal；
The vehicle is received by signal, and obtain original letter prosecutor by the time headway data of each divided lane parsed
The data processing module of each lane actual vehicle head interval distribution and accounting data during case data and green light；
The time headway appearance model in each lane is judged, and signature is carried out to each lane, obtains supersaturated vehicle
The logic processing module of the inefficient phase of the supersaturated phase and inefficient lane aggregation of road aggregation；
Original letter control protocol is optimized and is trained the optimization and test module of test；
Letter control protocol after receiving optimization sends signal controlling machine after testing the letter control protocol after optimization
Control centre；
Signal controlling machine receives and executes the letter control protocol after optimization；
Communication module for data receiver and transmission between each component part.
9. a kind of letter prosecutor case for being applicable in more equipment as claimed in claim 8 implements optimization system, it is characterised in that: the end
End detection device is ground induction coil, wireless geomagnetism, can detect the microwave equipment in multiple lanes simultaneously or have virtual coil function
Video detecting device.
10. a kind of letter prosecutor case for being applicable in more equipment implements optimization device characterized by comprising
The vehicle is received by signal, and obtain original letter prosecutor by the time headway data of each divided lane parsed
The data processing module of each lane actual vehicle head interval distribution and accounting data during case data and green light；
The time headway appearance model in each lane is judged, and signature is carried out to each lane, obtains supersaturated vehicle
The logic processing module of the inefficient phase of the supersaturated phase and inefficient lane aggregation of road aggregation；
The optimization and test module that original letter control protocol is optimized and tested；
For carrying out the communication module of data receiver and transmission with other equipment.
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