CN109003461A - A kind of efficiently current traffic lights network system - Google Patents
A kind of efficiently current traffic lights network system Download PDFInfo
- Publication number
- CN109003461A CN109003461A CN201810895298.5A CN201810895298A CN109003461A CN 109003461 A CN109003461 A CN 109003461A CN 201810895298 A CN201810895298 A CN 201810895298A CN 109003461 A CN109003461 A CN 109003461A
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- crossing
- traffic
- green light
- traffic lights
- light 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
- G08G1/081—Plural intersections under common control
- G08G1/083—Controlling the allocation of time between phases of a cycle
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/07—Controlling traffic signals
- G08G1/081—Plural intersections under common control
- G08G1/082—Controlling the time between beginning of the same phase of a cycle at adjacent intersections
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Traffic Control Systems (AREA)
Abstract
This patent discloses a kind of efficiently current traffic lights network systems.This traffic network system is made of traffic lights, traffic light control, local controller, RS485 communication and section advisory speed mark etc..This patent purpose is exactly that crossing traffic lamp is networked by RS485, realization vehicle is green light at this crossing, and straight trip to next crossing is green light, then the still green light encountered when next crossing under, this provides for improved traffic efficiencies, and reversed vehicle also blocks by nothing.It to be realized here it is this patent, it is realized by network delay.When vehicle reaches crossing A, RS485 communication issues signal, and vehicle reaches crossing B by the speed operation recommended, straight trip, required runing time is determining, it is communicated by RS485, is delayed to signal at this time, crossing B green light, it is also same method to straight trip to crossing C, it green light can thus go down always, improve vehicle pass-through efficiency, otherwise opposite direction through vehicles are also that green light is ined succession green light.
Description
Technical field
This patent is related to a kind of efficiently current traffic lights network system, in particular to a kind of through vehicles are in intersection
And next intersection continuously obtains the current efficiently current traffic lights network system of green light.
Background technique
With the development of science and technology, city dweller possesses that automobile quantity is more and more, and the road in city also the more is repaired the more more,
The scale in city constantly expands, but the traffic in city really increasingly congestion.
In order to solve traffic congestion, it is provided with traffic lights in many intersections in traffic management department, to orderly
Traffic.Although starting point be it is good, effect is not fully up to expectations.This is because the traffic lights at each crossing is independent fortune
Row, cutting for period setting for they is all different, the traffic lights operation nothing at the traffic lights at a crossing and next crossing
Relevance.This has resulted in vehicle to encounter traffic lights at a crossing being red light, next crossing be likely encountered or red light,
The efficiency of vehicle pass-through is affected, artificially causes vehicle in the waiting at crossing and the congestion of crossing vehicle.In order to solve
This problem, improves the traffic efficiency of vehicle, and traffic lights is exactly linked to be network, collaboration fortune by the solution of this patent in length and breadth
Row.
Summary of the invention
The present invention provides a kind of efficiently current traffic lights network systems, and each crossing traffic lamp controller is passed through
RS485 communication interface connects into a network system in length and breadth.
Crossing B controller 30 connects crossing A controller 40 by RS485 interface, while connecting crossing by RS485 interface
C controller 31, it is as Figure 1 shows, but a part of only network that Fig. 1 is shown.
Crossing A controller 40 passes through RS485 interface and traffic light control 36, traffic light control 37, traffic light control 38, friendship
Logical lamp control 39 is connected, while traffic light control 36, controls traffic lights 1；Traffic light control 37 controls traffic lights 4；Traffic lights control
System 38 controls traffic lights 7；Traffic light control 39 controls traffic lights 8.
Crossing B controller 30 by RS485 interface and traffic light control 22, traffic light control 23, traffic light control 24 and
Traffic light control 25 is connected, while traffic light control 22, controls traffic lights 2；Traffic light control 23 controls traffic lights 5；Traffic lights
Control 24 controls traffic lights 9 and traffic light control 25, controls traffic lights 10.
Crossing C controller 31 by RS485 interface and traffic light control 26, traffic light control 27, traffic light control 28 and
Traffic light control 29 is connected, while traffic light control 26, controls traffic lights 3；Traffic light control 27 controls traffic lights 6；Traffic lights
Control 28 controls traffic lights 11 and traffic light control 29, controls traffic lights 12.
There is a local controller at each crossing, the final movement for controlling the 4 direction traffic lights in crossing.
The advisory speed in the section is indicated on the straight trip section at each crossing.
Fig. 2 illustrates the scene photo at a part straight trip crossing and the setting position of traffic lights.
Fig. 3 illustrates a kind of example in a direction, and turn left time T/4；Keep straight on green time 3T/8；Straight trip red time
3T/8, wherein T is that A traffic lights in crossing was cut for the period, i.e. a green light start time, it was by such as to next green light start time
Lower formula is determining, T=2*(D/S) * 60*60 (second), wherein D is the distance of crossing A to crossing B, and unit is kilometer, and S is crossing
To the advisory speed in the crossing section B, unit is kilometer/hour A, and crossing on a forthright is cut using identical for cycle T, by
In vehicle in the green light start time of crossing A, when vehicle runs to crossing B, the time is T/2, and at this moment crossing B is really that vehicle is green well
The lamp current moment opens, and vehicle is equally T/2 from the opposite direction lane time that crossing B runs to crossing A, due to T/2+T/2=
T is also the green light moment when the vehicle in opposite direction lane runs to crossing A, and vehicle is just without waiting for continuous operation improves logical
Line efficiency.
Detailed description of the invention
Fig. 1 traffic lights network.
Fig. 2 continuously keeps straight on crossing figure.
Fig. 3 crossing traffic lamp is cut for time diagram.
Component label instructions:
1 crossing A traffic lights (north-south)；2. crossing B traffic lights (north-south)；3. crossing C traffic lights (north-south)；4.
Crossing A traffic lights (north-south)；5. crossing B traffic lights (north-south)；6. crossing C traffic lights (north-south)；7. crossing A is handed over
Logical lamp (East and West direction)；8. crossing A traffic lights (East and West direction)；9. crossing B traffic lights (East and West direction)；10 crossing B traffic lights (things
To)；11. crossing C traffic lights (East and West direction)；12. crossing C traffic lights (East and West direction) 13. section advisory speed identifies; 22.
Traffic light control;23. traffic light control;24. traffic light control;25. traffic light control;26. traffic light control;
27. traffic light control;28. traffic light control;29. traffic light control;30. crossing B controller;31. crossing C is controlled
Device;36. traffic light control;37. traffic light control;38. traffic light control;39. traffic light control;40. crossing A
Controller;41. the crossing A green light moment is to the delay time at crossing B green light moment;42. crossing A turns left the duration; 43.
Crossing A green light is kept straight on the duration;44. the crossing A red light duration;45. the green light moment of crossing B is to the green light of crossing A
Moment delay time;46. crossing B is to the distance of crossing A;47. the shielding wire among road.
Specific embodiment
Illustrate this patent embodiment by certain specific embodiments below, being familiar with this skilled worker can be taken off by this specification
The content of dew understands the advantages of this patent and effect easily.
Please refer to Fig. 1,2,3.It should be clear that this specification institute accompanying drawings, only to cooperate specification disclosure, confession is ripe
It knows this skilled worker to understand and read, is not limited to the enforceable qualifications of this patent, " is put to what this patent was done
Greatly ", " diminution " or small parameter perturbations etc., thus do not have technical essential meaning, do not influence the effect of this patent can be generated and
Under the purpose that can reach, should all still it fall in the range of the revealed technology contents of this patent can cover.Meanwhile this explanation
Cited such as " thing ", " north and south ", "upper", "lower", "front", "rear", "left", "right", " one ", " A ", " B " and " C " in book
Term, be merely convenient to narration and be illustrated, rather than to limit the enforceable range of this patent, at it without in substantive change technology
It holds, also when being considered as the implementable scope of this patent.
Fig. 1 is traffic lights network, and Fig. 2 is continuous straight trip crossing figure.Fig. 3 is that crossing traffic lamp is cut for time diagram.Road
Mouthful A controller 40 connect by RS485 interface with crossing B controller 30, at the same crossing B controller 30 pass through RS485 interface with
Crossing C controller 31 is connected, this is the longitudinally connected of crossing, and can be cascaded down always, while lateral local controller
It can equally cascade, achieve the purpose that form traffic lights network.Crossing A controller 40 passes through RS485 interface and traffic light control
36, traffic light control 37, traffic light control 38 and traffic light control 39 are connected；Crossing B controller 30 is by RS485 interface and hands over
Logical lamp control 22, traffic light control 23, traffic light control 24 and traffic light control 25 are connected；Crossing C controller 31 passes through RS485
Interface is connected with traffic light control 26, traffic light control 27, traffic light control 28 and traffic light control 29.Traffic light control 36 is controlled
Traffic lights 1 processed, traffic light control 37 control traffic lights 4, and traffic light control 38 controls traffic lights 7, and the control of traffic light control 39 is handed over
Logical lamp 8；Traffic light control 22 controls traffic lights 2, and traffic light control 23 controls traffic lights 5, and traffic light control 24 controls traffic lights
9, traffic light control 25 controls traffic lights 10；Traffic light control 26 controls traffic lights 3, and traffic light control 27 controls traffic lights 6, hands over
Logical 28 control traffic lights 11 of lamp control, traffic light control 29 control traffic lights 12.
Fig. 3 is that the north-south crossing A traffic lights is cut for time diagram, and turn left time T/4 42, green light straight trip time 3,T/8 43,
Red light dwell time 3,T/8 44, section advisory speed mark 13, symbol S, unit be kilometer/hour, crossing A to crossing B
Distance 46, symbol D, unit are kilometer.T=2*(D/S) * 60*60(seconds).Crossing A green light start time is to crossing B green light
The delay time of start time delay time T/2 45, crossing B green light start time to crossing A green light start time are also T/
241, crossing C are also same method to crossing B, and successively cascade is gone down in this way, and straight trip crossing is all cut using same traffic lights
For cycle T, the straight trip crossing of opposite direction all uses same method, so that realizing vehicle reaches crossing when being green light, vehicle
Running to next straight trip crossing is also green light, runs to down next straight trip crossing or green light.Vehicle is shortened at crossing
Waiting time improves the traffic efficiency of road.Reversed Through Lane is also same calculation method, also be can reach same logical
Row effect.
If the distance between two crossings are too short or too long, the delay time in section can be less than T/2 or be greater than T/2,
But can must be appropriately arranged with by parameter, green light is remained to meet through vehicles from a upper crossing to next crossing
It is current.If the distance at two crossings is very remote, illustrate that the correlation at two crossings is excessively poor, it is limited to current influence,
It can not consider.
Claims (8)
1. this patent provides a kind of efficiently current traffic lights network system, it is characterised in that: this traffic lights network system by
Composition, the purposes such as traffic lights, traffic light control, local controller, RS485 communication and section advisory speed mark realize straight trip
Lane vehicle is run to next straight trip crossing green light, run to down by the speed operation recommended, vehicle in current crossing green light
Next straight trip crossing or green light.
2. local controller according to claim 1, it is characterized in that logical by RS485 interface and next local controller
Letter.
3. traffic light control according to claim 1, it is characterised in that led to local controller by RS485 interface
Letter.
4. local controller according to claim 1, it is characterised in that, can be lateral by RS485 interface, Zong Xianglian
Net improves the traffic efficiency of vehicle.
5. being characterized in that straight trip crossing traffic lamp is cut for cycle T is identical, week according to traffic lights network system described in right 1
Phase T is a green light start time, to the time of next green light start time.
6. cut according to crossing traffic lamp described in right 5 for cycle T, it is characterized in that: T is by formula: T=2*(D/S) * 60*60
(second) determines, wherein D is the distance between two crossings, and unit is kilometer, and S is the advisory speed in section between two crossings,
Unit is kilometer/hour.
7. according to local controller described in right 1, it is characterized in that: a local controller, passes through RS485 communication interface control
The 4 tunnel traffic light controls at crossing processed, while per traffic light control all the way, control traffic lights all the way.
8. being delayed according to the crossing traffic lamp green light moment described in right 1, it is characterized in that: next straight trip crossing is straight to upper one
The green light delay moment of walking along the street mouth is T/2, but the distance at two crossings sometimes is short or long, and the green light delay moment is settable to be less than
T/2 is greater than T/2, to be rationally arranged, and other parameters will be equipped with.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810895298.5A CN109003461A (en) | 2018-08-08 | 2018-08-08 | A kind of efficiently current traffic lights network system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810895298.5A CN109003461A (en) | 2018-08-08 | 2018-08-08 | A kind of efficiently current traffic lights network system |
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| CN109003461A true CN109003461A (en) | 2018-12-14 |
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| CN201810895298.5A Pending CN109003461A (en) | 2018-08-08 | 2018-08-08 | A kind of efficiently current traffic lights network system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109598952A (en) * | 2018-12-29 | 2019-04-09 | 驭势科技（北京）有限公司 | A kind of method and device controlling traffic lights |
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| CN102693639A (en) * | 2012-05-25 | 2012-09-26 | 余姚市交通标志设施有限公司 | Green-wave-band traffic control method |
| CN104036644A (en) * | 2014-05-26 | 2014-09-10 | 江苏科技大学 | Intelligent traffic light control system and implementing method thereof |
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2124392A (en) * | 1933-07-19 | 1938-07-19 | Gen Electric | Traffic-signaling system |
| WO2005109370A1 (en) * | 2004-05-11 | 2005-11-17 | Baowen Huang | A method for designing traffic sign of city road |
| CN1804931A (en) * | 2004-05-11 | 2006-07-19 | 黄宝文 | Method of design of road traffic signal devices in urban area |
| CN1928944A (en) * | 2006-09-19 | 2007-03-14 | 闻时光 | Traffic advisory tab with recommendatory traveling speed and its controlling method |
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| CN109598952A (en) * | 2018-12-29 | 2019-04-09 | 驭势科技（北京）有限公司 | A kind of method and device controlling traffic lights |
| US11302186B2 (en) | 2018-12-29 | 2022-04-12 | Uisee Technologies (beijing) Co., Ltd. | Methods and apparatuses for controlling traffic lights |
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