CN104835331A - Signal lamp dispatching system and signal lamp dispatching method thereof - Google Patents
Signal lamp dispatching system and signal lamp dispatching method thereof Download PDFInfo
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- CN104835331A CN104835331A CN201510235588.3A CN201510235588A CN104835331A CN 104835331 A CN104835331 A CN 104835331A CN 201510235588 A CN201510235588 A CN 201510235588A CN 104835331 A CN104835331 A CN 104835331A
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Abstract
The invention relates to a signal lamp dispatching system comprising a server, vehicle-borne positioning devices, and intelligent signal lamps. The server is connected with the vehicle-borne positioning devices through communication. Each vehicle-borne positioning device includes a controller, a communication module and a positioning device, wherein the positioning device is a high-precision positioning device which can position a vehicle to a lane. Each intelligent signal lamp includes a communication module and a signal lamp controller which can receive a control instruction sent by the server and control the running of the signal lamp according to the received instruction. The server acquires the accurate real-time positions of a large number of on-road vehicles so as to position the vehicles to lanes. The server can calculate the congestion index of a lane, predict the congestion index of the lane in a future period of time, and carry out signal lamp dispatching according to the congestion index of the lane and signal lamp dispatching rules.
Description
Technical field
The present invention relates to and relate to traffic administration, especially relate to a kind of signal lamp dispatching system.
Background technology
Above reflecting track or road, vehicle flow can use road vehicle flow, vehicle flow rate.Road vehicle flow, road vehicle flow velocity are the important evidence of traffic design, traffic administration; Particularly real-time road vehicle flow velocity, can be used for carrying out real-time traffic administration; Be accurate to the important evidence of the vehicle flow of track rank, vehicle flow rate traffic design, traffic administration especially; The real-time vehicle flow being accurate to track rank, vehicle flow rate have very large meaning to real-time traffic scheduling, traffic administration.
" intelligent transportation anti-congestion system and device " that existing Chinese Patent Application No. 201310251053.6 is proposed by Li Guiwen, Li Xianghui etc., propose a kind of intelligent transportation anti-congestion system, adopt location and the operation information of Some vehicles, infer, the congestion index of each bar road in current city; Carry out traffic control accordingly.This technology is considered and is utilized wireless location technology, while acquisition geographical location information, and the velocity information of equipment.Utilize velocity information, calculate the congestion index of shaping road; Carry out traffic control accordingly.This technology proposes to gather the speed of a motor vehicle and position, directional information simultaneously, is used for calculating congestion in road index, can the overall passage situation of predicted link more accurately; But due to positioning precision poor (as GPS positioning precision 9 meters, higher when blocking, WIFI positioning precision is poor, and cost is high), the congestion index in each track can not be calculated.
The positioning precision of existing differential satellite positioning system can reach a millimeter rank, and little by the impact of terrain and its features; Further, by carrying out the aftertreatments such as error correction to the data of single-point satnav, the technology of high-precision fixed bit data is obtained; High-precision satellite positioning tech can be used for carrying out traffic administration.
Existing Chinese patent 201210178817.9 proposes wireless induction type road vehicle flow detection device, by roadside base station and the wire-less inductive devices be embedded under road foundation, obtains vehicle flow data; But need to lay a large amount of equipment.
Existing Chinese patent 201210507080.0 proposes a kind of urban road traffic state method of discrimination based on section detector; Construct evaluation index of comprehensively blocking up, i.e. a traffic congestion index with the magnitude of traffic flow, speed, these three traffic flow parameters of time occupancy, utilize traffic congestion exponent pair road section traffic volume state to differentiate; But this invention is based on the transport information of detection sections some on section, and information acquisition is less, and the data precision is lower.
If, the self-contained high precision satellite positioning device of all or most vehicle, server passes through to obtain at the more accurate real time position of road vehicles, vehicle location on track; Server is according to the real time positioning data of vehicle on the coefficient taking road of the various types of vehicles pre-set, track, calculate the congestion index in track, the average speeds in track, the congestion index in track, the average speeds in track of prediction future time period, carry out signal lamp management and running according to the congestion index in the track of the congestion index in track, the average speeds in track, the future time period of prediction, the average speeds in track, the current coefficient etc. in track, better traffic scheduling effect can be obtained.
Summary of the invention
Technical matters:
For the defect that prior art exists, the present invention proposes a kind of signal lamp dispatching system and signal lamp dispatching method thereof, by the high-accuracy position system that each vehicle is installed, obtain the real time position of the vehicle on road, vehicle location on track, analyze real-time track vehicle flow, track vehicle flow rate, road vehicle flow, road vehicle flow velocity further; And according to the current coefficient in the signal lamp scheduling rule pre-set, track, calculate signal lamp operation plan, send to traffic controller, by the operation of traffic controller control signal lamp.
Technical scheme:
For achieving the above object, the present invention proposes a kind of signal lamp dispatching system, comprises server, vehicle carried pick device, intelligent signal lamp; Described server and vehicle carried pick device communicate to connect; Described vehicle carried pick device comprises controller, communication module, locating device; Described locating device is high-precision positioner, can vehicle location on track; Described intelligent signal lamp comprises communication module two, controller two, can the steering order that sends of reception server, and according to the operation of the command control signal lamp received; Described vehicle carried pick device is arranged on vehicle; Described controller is connected with communication module and locating device respectively; Described communication module is in order to data information mutual between server and vehicle carried pick device; Described locating device sends controller to vehicle location information; Described communication module two is in order to data information mutual between server and intelligent signal lamp.
Described a kind of Real-time Road service condition analytic system, also comprise office terminal, described office terminal is connected with server by communication system, for managing the operation of whole system.
The signal lamp dispatching method of described a kind of signal lamp dispatching system, comprises the steps:
1) vehicle carried pick device timing or cyclically send the locating information of vehicle to server;
2) server iterates ground receives the locating information of vehicle;
3) calculate the current traffic capacity in track server iterates, and represent with the congestion index in track;
4) server iterates ground calculates the data dispatching of the signal lamp of track level;
5) data dispatching of signal lamp is sent to corresponding signal lamp server iterates.
Described step 3) feature be:
The foundation of the congestion index in server calculating track comprises the locating information of the vehicle received.
Described step 3) also comprise following process:
I) with the congestion index in the rate of outflow of vehicle in the unit interval in track rectification track;
The congestion index sum in the track that the vehicle of all outflows is corresponding in the unit interval calculating track, then deduct this number with the congestion index in track, the difference of gained is the congestion index in the track after correcting;
II) with the congestion index in the inflow velocity of vehicle in the unit interval in track rectification track;
The congestion index sum in the track that the vehicle of all inflows is corresponding in the unit interval calculating track, then add this number with the congestion index in track, gained and be the congestion index in the track after correcting;
III) with the congestion index in the congestion index of the prediction in track rectification track;
IV) with the congestion index in the average speeds of track previous time period rectification track.
Described step 4) basis comprise:
A) corresponding relation of track and signal lamp;
B) signal lamp scheduling strategy;
C) direction, track;
D) track entrance adjoins track;
E) the adjacent track of track outlet;
F) average speeds in track;
G) the current coefficient in track.
Described signal lamp dispatching method, terminal computer can check signal lamp data dispatching.
Check that the mode of signal lamp data dispatching is the combination of following manner:
I) on screen with mode word displaing lamp data dispatching;
II) on the electronic chart of screen display displaing lamp position, represent the different conditions of signal lamp with different colors;
III), time on the position moving to the signal lamp shown on the electronic chart of screen display at mouse, the data dispatching of this signal lamp is shown.
Time on the position moving to the signal lamp shown on electronic chart at mouse, show the signal lamp scheduling related information in corresponding track, comprising: current congestion data, inlet flow rate data, the rate of discharge data in the corresponding track of signal lamp.
Technique effect:
A kind of signal lamp dispatching system that the present invention proposes, server is a large amount of at the more accurate real time position of road vehicles by obtaining, vehicle location on track; Server is according to the real time positioning data of vehicle on the coefficient taking road of the various types of vehicles pre-set, track, the congestion index in track, the average speeds in track can be calculated, dope the congestion index in the track of future time period, the average speeds in track; According to the congestion index in the track of the congestion index in track, the average speeds in track, the future time period of prediction, with the scheduling of this control signal lamp, carry out traffic administration, better traffic administration effect can be obtained.
Accompanying drawing explanation
Fig. 1 is the structural principle schematic diagram of a kind of signal lamp dispatching system of the present invention.
Fig. 2 is the structural principle schematic diagram of vehicle carried pick device of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is described in further detail.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in Figure 1, a kind of signal lamp dispatching system that the present invention proposes, this system comprises: server, vehicle carried pick device, intelligent signal lamp; Described server and vehicle carried pick device communicate to connect, the communication connection of preferred use safety.Described server is prior art.
As shown in Figure 1, a kind of signal lamp dispatching system that the present invention proposes, also comprise office terminal, office terminal is connected with server by communication system, for managing the operation of whole system; Described office terminal is the fixed terminals such as computing machine, can be also the mobile terminals such as mobile phone, be prior art, preferably use computing machine.
As shown in Figure 2, described vehicle carried pick device comprises: controller, communication module, locating device; Described locating device is high-precision positioner, can vehicle location on track; Described controller is connected with communication module and locating device respectively; Described communication module is in order to data information mutual between server and vehicle carried pick device; Described locating device sends controller to vehicle location information.Described controller is prior art; Described communication module is prior art; Described locating device is prior art.Described locating device is vehicle-mounted high-precision satellite positioning device; Select differential satellite locating device, or other high precision satellite positioning device, the positioning precision of selected locating device is better than 0.5 meter, preferred use differential satellite locating device, and its positioning precision is better than 0.1 meter; Locating device sends controller to vehicle location information.
Described vehicle carried pick device is arranged on vehicle, is powered by onboard power system, and it is installed, power supply technique is prior art.
Described intelligent signal lamp comprises communication module two, controller two, can the steering order that sends of reception server, and according to the operation of the command control signal lamp received; Described communication module two is in order to data information mutual between server and intelligent signal lamp.
Described vehicle carried pick device is in vehicle travel process, and timing is combined into vehicle location information the unique identifier of the locator data of vehicle and vehicle or type of vehicle unique identifier and is sent to server; Server is according to the locating information of the track class precision of a large amount of vehicles received, according to the coefficient taking road of the various types of vehicles pre-set, according to length, the area in track, the congestion index in track, the average speeds in track can be calculated by analysis meter, dope the congestion index in the track of future time period, the average speeds in track; Server timing calculates congestion index, the average speeds in track, the congestion index in track, the average speeds in track of prediction future time period in track; Described prediction can adopt the prior aries such as arithmetic mean method, the method for moving average, exponetial smoothing method, linear regression method, preferably uses exponetial smoothing method.Server adjoins the data such as the congestion index in track, the congestion index in the adjacent track of outlet, track according to track entrance, revises further to the congestion index in track of the future time period of prediction, the average speeds in track.
Server is a large amount of at the more accurate real time position of road vehicles by obtaining, vehicle location on track; Server is according to the real time positioning data of vehicle on the coefficient taking road of the various types of vehicles pre-set, track, the congestion index in track, the average speeds in track can be calculated, dope the congestion index in the track of future time period, the average speeds in track; The congestion index in foundation track, the average speeds in track, the congestion index in track of the future time period of prediction, the average speeds in track carry out signal lamp scheduling, can obtain better traffic effect.
The signal lamp dispatching method of described a kind of signal lamp dispatching system, comprises the steps:
1) vehicle carried pick device timing or cyclically send the locating information of vehicle to server;
2) server iterates ground receives the locating information of vehicle;
3) calculate the current traffic capacity in track server iterates, and represent with the congestion index in track;
4) server iterates ground calculates the data dispatching of the signal lamp of track level;
5) data dispatching of signal lamp is sent to corresponding signal lamp server iterates.
Described step 1) vehicle carried pick device timing or cyclically send the locating information of vehicle to server, specifically describe as follows:
Each vehicle carried pick device, in vehicle operation, all timings or cyclically send the locating information of vehicle to server; Preferred timing sends the locating information of vehicle to server; Described timing sends the locating information of vehicle to server, and its fixed time interval is 0.01 second to 300 seconds, preferably 1 second; Described circulation sends the locating information of vehicle to server, and it often receives one-time positioning information, just sends once to server; Preferably, comprise the unique identifier of vehicle or the unique identifier of type of vehicle in the locating information of vehicle, server end, by the unique identifier of vehicle, can find the unique identifier of the type of this car;
Described step 2) server iterates ground receives the locating information of vehicle, specifically describes as follows:
The locating information of the round-the-clock reception vehicle of server, and the locating information of the vehicle received is stored in database and/or internal memory;
Described step 3) calculate the current traffic capacity in track server iterates, and represent with the congestion index in track, specifically describe as follows:
The foundation of the congestion index in server calculating track comprises the locating information of the vehicle received;
Server calculates with many times the current traffic capacity in track; Its account form has three kinds, preferably uses the third:
Described step 3) the first calculate the mode of the current traffic capacity in track:
A) current all vehicles on each track are found out; The quantity of all vehicles on each track is the congestion index in corresponding track;
Described step 3) the second calculate the mode of the current traffic capacity in track:
A) current all vehicles on each track are found out;
B) according to the unique identifier of type of vehicle in vehicle location information, or according to the unique identifier of the vehicle in vehicle location information, the unique identifier of the type of vehicle of this car is found; According to unique identifier, the coefficient taking road of various types of vehicles that pre-sets of type of vehicle, find the coefficient taking road of vehicle; To the coefficient summation taking road of current each vehicle on track, all vehicles calculated on current each track take the overall coefficient of road, take the congestion index of overall coefficient for track of road with all vehicles on track;
The coefficient taking road of the described various types of vehicles pre-set, the length, width, travel speed etc. that take road according to all types of vehicle are manually arranged in advance, the first set-up mode is: the coefficient taking road of vehicle is the length that vehicle takies road, the second set-up mode is: the coefficient taking road of vehicle is the reasonable following distance that length that vehicle takies road adds the type vehicle, preferably uses the second set-up mode;
Described step 3) the third calculate the mode of the current traffic capacity in track:
Often as follows all over the step calculated:
A) current all vehicles on each track are found out;
B) according to the unique identifier of type of vehicle in vehicle location information, or according to the unique identifier of the vehicle in vehicle location information, the unique identifier of the type of vehicle of this car is found; According to unique identifier, the coefficient taking road of various types of vehicles that pre-sets of type of vehicle, find the coefficient taking road of vehicle; To the coefficient summation taking road of current each vehicle on track, all vehicles calculated on current each track take the overall coefficient of road, take the congestion index of overall coefficient for track of road with all vehicles on track;
The coefficient taking road of the described various types of vehicles pre-set, the length, width, travel speed etc. that take road according to all types of vehicle are manually arranged in advance, the first set-up mode is: the coefficient taking road of vehicle is the length that vehicle takies road, the second set-up mode is: the coefficient taking road of vehicle is the reasonable following distance that length that vehicle takies road adds the type vehicle, preferably uses the second set-up mode;
C) all vehicles on current each track take the current coefficient of overall coefficient divided by the track pre-set of road, and the business obtained is the congestion index in track; The current coefficient in the described track pre-set, in advance by manually arranging, the length in one of its set-up mode to be the current coefficient in track be track;
Described step 3) also comprise following process, these process Combination application, carry out further correction process to the congestion index in the track obtained:
I) with the congestion index in the rate of outflow of vehicle in the unit interval in track rectification track;
The congestion index in the track that the vehicle of all outflows is corresponding in the unit interval calculating track, then deduct this number with the congestion index in track, the difference of gained is the congestion index in the track after correcting;
The computing method of the congestion index in the track that the vehicle of all outflows is corresponding and described step 3 in the unit interval in described track) calculate the congestion index in track method similar, difference is:
Step 3) in find out current all vehicles on each track, change to: find out from this moment, flow out forward all vehicles in this track in setting-up time; Described setting-up time is 5 seconds to 6000 seconds or is cycle of traffic lights, the preferably cycle of traffic lights;
II) with the congestion index in the inflow velocity of vehicle in the unit interval in track rectification track;
The congestion index sum in the track that the vehicle of all inflows is corresponding in the unit interval calculating track, then add this number with the congestion index in track, gained and be the congestion index in the track after correcting;
The computing method of the congestion index in the track that the vehicle of all inflows is corresponding and described step 3 in the unit interval in described track) calculate the congestion index in track method similar, difference is:
Step 3) in find out current all vehicles on each track, change to: find out from this moment, flow into forward all vehicles in this track in setting-up time;
Described setting-up time is 5 seconds to 6000 seconds or is cycle of traffic lights, the preferably cycle of traffic lights;
III) with the congestion index in the congestion index of the prediction in track rectification track:
The congestion index in the track in next setting-up time is doped according to the congestion index in the track of the multiple setting-up time of the continuous print before current time;
Described Forecasting Methodology can adopt the prior aries such as arithmetic mean method, the method for moving average, exponetial smoothing method, linear regression method, preferably uses exponetial smoothing method;
After calculating the congestion index in the track in next setting-up time, after being multiplied by the predictive coefficient of setting, the long-pending congestion index adding track obtained, obtain and be the congestion index in track after correcting;
Described setting-up time is 5 seconds to 6000 seconds or is cycle of traffic lights, the preferably cycle of traffic lights;
IV) with the congestion index in the average speeds of track previous time period rectification track:
Deduct the average speeds setting of track previous time period with the basic road speed in track, the difference obtained, is multiplied by the coefficient of setting, the long-pending congestion index adding track obtained, be the congestion index in track after correcting; The basic road speed in the track of described setting, arrange with reference to track actual travel situation, be preferably set smaller than 10% of lane design speed, as urban district major trunk roads are set as 40, Ordinary Rd is set as 25; The coefficient of described setting is set to 0.0001 to 10, is preferably set as 0.002; The described time period is 5 seconds to 6000 seconds or is cycle of traffic lights, the preferably cycle of traffic lights; Described average speeds is the mean value of the speed of all vehicles leaving track in this time period when leaving.
Described step 4) server iterates ground calculates the data dispatching of the signal lamp of track level, is described as follows:
Basis signal lamp scheduling strategy calculates the data obtained, and is signal lamp data dispatching;
Described step 4) basis comprise:
A) corresponding relation of track and signal lamp: have a Signalized control track, also have multiple track of the same type of Signalized control, also has a signal etc. to control multiple dissimilar track; Described carriageway type comprises: Through Lane, left turn lane, right-turn lane;
During the multiple track of Signalized control, the arithmetic mean of the congestion index in the track of multiple association of signal lamp therewith, as the congestion index in track corresponding to signal lamp;
B) signal lamp scheduling strategy: the signal lamp scheduling strategy in track has multiple, have red eye, greensignal light, amber lamp to replace, the time shared by amber lamp is fixed, and coston light is lighted in turn;
The congestion index in track: the corresponding relation of foundation track and signal lamp, the congestion index according to track calculates the data dispatching of signal lamp, and the congestion index in track is larger, and green light accounting is larger; Be multiplied by the parameter of setting with the congestion index in track, gained amass the time shared by green light, the time shared by amber light pre-sets, a signal lamp cycle deduct shared by green light the time shared by time, amber light T.T., the time shared by red light;
C) direction, track: the main travel direction in track, is used for determining entrance, the outlet of track vehicle;
D) track entrance adjoins track: the track that all entrances in track are adjacent, and some outlets in all of its neighbor track are connected with some entrances in this track; To the track of this track entrance of all of its neighbor, respectively cur-rent congestion index corresponding for this track is multiplied by the inflow coefficient of setting, on the long-pending coefficient that blocks up being added to this track obtained; The inflow coefficient of described setting, different entrances adjoins track difference, and setting value is 0.001 to 1, is preferably set as 0.3;
E) the adjacent track of track outlet: the track that track all outlet ports is adjacent, some entrances in all of its neighbor track export with the some of this track and are connected; To the track of this track of all of its neighbor outlet, respectively cur-rent congestion index corresponding for this track is multiplied by the efflux coefficient of setting, the coefficient that blocks up in this track deducts obtain long-pending; The efflux coefficient of described setting, different outlets adjoins track difference, and setting value is 0.001 to 1, is preferably set as 0.3;
F) average speeds in track: the basic road speed deducting the track of setting with the average speeds in track, the difference obtained, is multiplied by the coefficient of setting, the long-pending congestion index adding track obtained, and is the congestion index in the track after rectification; The basic road speed in the track of described setting, arrange with reference to track actual travel situation, be preferably set smaller than 10% of lane design speed, as urban district major trunk roads are set as 40, Ordinary Rd is set as 25; The coefficient of described setting is set to 0.0001 to 10, is preferably set as 0.002; Described average speeds is the mean value of the speed of all vehicles leaving track in this time period when leaving;
G) the current coefficient in track: all vehicles on current each track take the current coefficient of summation divided by the track pre-set of the coefficient of road, and the business obtained is the congestion index in track; The current coefficient in the described track pre-set, in advance by manually arranging, the length in one of its set-up mode to be the current coefficient in track be track.
Described step 5) data dispatching of signal lamp is sent to corresponding signal lamp server iterates, further illustrate as follows:
Described server, after calculating the data dispatching of signal lamp, the corresponding relation of the track that foundation pre-sets and signal lamp, sends to intelligent signal lamp signal lamp data dispatching; Described intelligent signal lamp, can with server communication, and according to the work of command-control signal lamp that server sends, be prior art.
Described signal lamp dispatching method, terminal computer can check signal lamp data dispatching; Described terminal computer is fixed terminal or mobile terminal.
Check that the mode of signal lamp data dispatching is the combination of following manner:
I) on screen with mode word displaing lamp data dispatching; Its display mode is presented at word near signal lamp or with tabular form display or display Query Result; Described data dispatching comprises: the various state holding time of signal lamp, signal lamp unique identifier, signal lamp installation site, the corresponding track of signal lamp;
II) on the electronic chart of screen display displaing lamp position, represent the different conditions of signal lamp with different colors; Described color, with the solid colour of actual signal lamp;
III), time on the position moving to the signal lamp shown on the electronic chart of screen display at mouse, the data dispatching of this signal lamp is shown; Described data dispatching comprises: the various state holding time of signal lamp, signal lamp unique identifier, signal lamp installation site, the corresponding track of signal lamp.
Time on the position moving to the signal lamp shown on electronic chart at mouse, show the signal lamp scheduling related information in corresponding track, comprising: current congestion data, inlet flow rate data, the rate of discharge data in the corresponding track of signal lamp;
Described data dispatching also comprises: the average speeds in the corresponding track of the various state holding time of signal lamp, signal lamp unique identifier, signal lamp, track;
Described data dispatching also comprises: the inflow velocity of the vehicle in track, the rate of outflow of the vehicle in track, the congestion index of prediction;
Described data dispatching also comprises: the inflow velocity of the vehicle in track, the rate of outflow of the vehicle in track, the congestion index of prediction.
A kind of signal lamp dispatching system that the present invention proposes, server is a large amount of at the more accurate real time position of road vehicles by obtaining, vehicle location on track; Server is according to the real time positioning data of vehicle on the coefficient taking road of the various types of vehicles pre-set, track, the congestion index in track, the average speeds in track can be calculated, dope the congestion index in the track of future time period, the average speeds in track; According to the congestion index in the track of the congestion index in track, the average speeds in track, the future time period of prediction, with the scheduling of this control signal lamp, carry out traffic administration, better traffic administration effect can be obtained.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a signal lamp dispatching system, is characterized in that: comprise server, vehicle carried pick device, intelligent signal lamp; Described server and vehicle carried pick device communicate to connect; Described vehicle carried pick device comprises controller, communication module, locating device; Described locating device is high-precision positioner, can vehicle location on track; Described intelligent signal lamp comprises communication module two, controller two, can the steering order that sends of reception server, and according to the operation of the command control signal lamp received; Described vehicle carried pick device is arranged on vehicle; Described controller is connected with communication module and locating device respectively; Described communication module is in order to data information mutual between server and vehicle carried pick device; Described locating device sends controller to vehicle location information; Described communication module two is in order to data information mutual between server and intelligent signal lamp.
2. a kind of signal lamp dispatching system according to claim 1, it is characterized in that: also comprise office terminal, described office terminal is connected with server by communication system, for managing the operation of whole system.
3. the signal lamp dispatching method of a kind of signal lamp dispatching system according to claim 1, is characterized in that: comprise the steps:
1) vehicle carried pick device timing or cyclically send the locating information of vehicle to server;
2) server iterates ground receives the locating information of vehicle;
3) calculate the current traffic capacity in track server iterates, and represent with the congestion index in track;
4) server iterates ground calculates the data dispatching of the signal lamp of track level;
5) data dispatching of signal lamp is sent to corresponding signal lamp server iterates.
4. signal lamp dispatching method according to claim 3, is characterized in that: described step 3) feature be:
The foundation of the congestion index in server calculating track comprises the locating information of the vehicle received.
5. signal lamp dispatching method according to claim 3, is characterized in that: described step 3) also comprise following process:
I) with the congestion index in the rate of outflow of vehicle in the unit interval in track rectification track;
II) with the congestion index in the inflow velocity of vehicle in the unit interval in track rectification track;
III) with the congestion index in the congestion index of the prediction in track rectification track;
IV) with the congestion index in the average speeds of track previous time period rectification track.
6. signal lamp dispatching method according to claim 4, is characterized in that: described step 4) basis comprise:
A) corresponding relation of track and signal lamp;
B) signal lamp scheduling strategy;
C) direction, track;
D) track entrance adjoins track;
E) the adjacent track of track outlet;
F) average speeds in track;
G) the current coefficient in track.
7. signal lamp dispatching method according to claim 3, is characterized in that: can check signal lamp data dispatching on terminal computer.
8. signal lamp dispatching method according to claim 7, is characterized in that: check that the mode of signal lamp data dispatching is the combination of following manner:
I) on screen with mode word displaing lamp data dispatching;
II) on the electronic chart of screen display displaing lamp position, represent the different conditions of signal lamp with different colors;
III), time on the position moving to the signal lamp shown on electronic chart at mouse, the data dispatching of this signal lamp is shown.
9. signal lamp dispatching method according to claim 8, it is characterized in that: time on the position moving to the signal lamp shown on electronic chart at mouse, show the signal lamp scheduling related information in corresponding track, comprising: congestion data, inlet flow rate data, rate of discharge data that the corresponding track of signal lamp is current.
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| CN108389403A (en) * | 2018-04-23 | 2018-08-10 | 白冰 | The traffic lights and speed(-)limit sign intelligent adjusting method captured based on vehicle flowrate |
| CN110100271A (en) * | 2016-11-29 | 2019-08-06 | 赫尔环球有限公司 | For using the method, apparatus and computer program product of data traffic signal estimating road traffic situation |
| CN111028511A (en) * | 2019-12-25 | 2020-04-17 | 亚信科技（中国）有限公司 | Traffic jam early warning method and device |
| CN113016014A (en) * | 2018-11-14 | 2021-06-22 | 本田技研工业株式会社 | Analysis device and analysis method |
| CN115116237A (en) * | 2021-03-17 | 2022-09-27 | 博泰车联网科技(上海)股份有限公司 | Traffic light intelligent adjusting method and device based on Internet of vehicles, storage medium and terminal |
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