CN105809994A - Traffic light control method based on special vehicle identification - Google Patents
Traffic light control method based on special vehicle identification Download PDFInfo
- Publication number
- CN105809994A CN105809994A CN201610271985.0A CN201610271985A CN105809994A CN 105809994 A CN105809994 A CN 105809994A CN 201610271985 A CN201610271985 A CN 201610271985A CN 105809994 A CN105809994 A CN 105809994A
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- special vehicle
- traffic lights
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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
- G08G1/087—Override of traffic control, e.g. by signal transmitted by an emergency vehicle
-
- 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
- G08G1/017—Detecting movement of traffic to be counted or controlled identifying vehicles
- G08G1/0175—Detecting movement of traffic to be counted or controlled identifying vehicles by photographing vehicles, e.g. when violating traffic rules
-
- 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
- G08G1/052—Detecting movement of traffic to be counted or controlled with provision for determining speed or overspeed
-
- 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
- G08G1/056—Detecting movement of traffic to be counted or controlled with provision for distinguishing direction of travel
-
- 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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Traffic Control Systems (AREA)
Abstract
The invention discloses a traffic light control method based on special vehicle identification.The traffic light control method includes the steps that a special vehicle identification device is used for identifying a special vehicle and speed thereof, and a wireless signal receiver receives a task execution signal and judges whether the special vehicle moves straightly or makes a turn by adopting cameras of all lanes; if a traffic light in the straightly moving or turning direction of the special vehicle at the moment is green, the interval of display time dynamic refreshing is prolonged; if the traffic light is red, the interval of display time dynamic refreshing is shortened.It is ensured that the special vehicle is not unimpeded when reaching a road junction, and potential safety hazards are avoided.
Description
Technical field
The present invention relates to traffic lights field of intelligent control, particularly relate to a kind of traffic lamp control method based on special vehicle identification.
Background technology
At present, the control of known traffic lights can be divided into timing controlled, sensing control, Self Adaptive Control.
Timing controlled intersection traffic signal controlling machine all runs by the timing scheme set in advance, also referred to as fixed cycle control.Within one day, only it is called unistage type timing controlled by a timing scheme；One day by different periods the volume of traffic adopt several timing schemes be called multisection type timing controlled.Most basic control mode is the timing controlled of single crossing.Line traffic control, face control also all to use time-controlled mode, are also static line Ore-controlling Role, static face Ore-controlling Role.
Sensing Perceived control should control to be arrange wagon detector on crossing inlet road, and traffic light timing scheme is calculated by computer or intelligent signal controlling machine, a kind of control mode that can change at any time with the car flow information that detector detects.
The basic mode that sensing controls is that single crossing must sense control, and being called for short single-point Perceived control should control.Single-point sensing controls to be divided into half sensing control and all-traffic-responsive control with the difference of detector set-up mode.
Self Adaptive Control using traffic system as a uncertain system, its state can be measured continuously, such as vehicle flowrate, stop frequency, delay time at stop, queue length etc., understand and grasp object gradually, they are compared with desired dynamic characteristic, and utilize difference to change the adjustable parameter of system or to produce a control, no matter thus ensureing how environment changes, and control effect all can be made to reach a kind of control mode of optimum or suboptimal control.
Although the change controlling now to consider traffic flow is made that Based Intelligent Control, but not a kind of control mode is for there being special vehicle (police car at present, ambulance, fire engine etc.) current time section carry out Based Intelligent Control, even if special vehicle has passing when light turning red right, but other vehicles current with crossing have the potential safety hazard collided.
Summary of the invention
The technical problem to be solved is for defect involved in background technology, a kind of traffic lamp control method based on special vehicle identification is provided, to ensure that special vehicle must be green light when driving to crossing, the same with normal car current, it is to avoid to open the franchise potential safety hazard brought of making a dash across the red light.
The present invention solves above-mentioned technical problem by the following technical solutions:
The invention discloses a kind of traffic lamp control method based on special vehicle identification, comprise the following steps:
Step 1), special vehicle identification device is arranged on the distance threshold place from crossing front preset, special vehicle identification device sends this information to the controller of traffic lights after identifying special vehicle according to license plate and image processing techniques and calculate its speed；
Step 2), at special vehicle identification device place, wireless signal receiver is set, the execution task signal launched towards periphery when task opens siren for receiving special vehicle to perform, and the task signal that performs received is sent to the controller of traffic lights；
Step 3), photographic head is set in each track for shooting the picture in corresponding track, and the picture photographed is transferred to by different transmission channels the controller of traffic lights；
Step 4), when there is special vehicle and special vehicle is carrying out task；
Step 4.1), the controller of traffic lights judges the direct of travel of special vehicle according to the picture of photographic head shooting on each track, and namely feature vehicle carries out keeping straight on, turn left or turning right；
Step 4.2), the speed of the special vehicle calculated according to special vehicle identification device and the distance threshold preset calculate special vehicle and travel the time to traffic lights；
Step 4.3), if now the traffic lights of special vehicle direct of travel is green light, extend the interval of green light display time dynamic refresh so that the duration of green light deducts special vehicle and travels the difference of the time to traffic lights more than default time threshold；
Step 4.4), if now the traffic lights of special vehicle direct of travel is red light, accelerate the interval of red light display time dynamic refresh so that the duration of red light travels the time to traffic lights less than special vehicle.
As the present invention further prioritization scheme of traffic lamp control method based on special vehicle identification, described default distance threshold is 500 meters.
As the present invention further prioritization scheme of traffic lamp control method based on special vehicle identification, described special vehicle identification device comprises the first photographic head, second camera and microcontroller；
Described first photographic head, second camera are respectively used to the collecting vehicle trade mark and vehicle external form profile, and pass it to described microcontroller；
Described microcontroller is for identifying special vehicle according to contour of the vehicle profile and license plate number, and calculates the speed of special vehicle.
The present invention adopts above technical scheme compared with prior art, has following technical effect that
The special vehicle of the task of being carrying out can be identified in traffic environment, it is unblocked that the time change of Based Intelligent Control traffic lights ensures that special vehicle arrives during crossing, avoid potential safety hazard, contribute to better completing the special mission of special vehicle, bring more social benefit.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme is described in further detail:
The invention discloses a kind of traffic lamp control method based on special vehicle identification, comprise the steps of
Step 1), special vehicle identification device is arranged on the distance threshold place from crossing front preset, special vehicle identification device sends this information to the controller of traffic lights after identifying special vehicle according to license plate and image processing techniques and calculate its speed；
Step 2), at special vehicle identification device place, wireless signal receiver is set, the execution task signal launched towards periphery when task opens siren for receiving special vehicle to perform, and the task signal that performs received is sent to the controller of traffic lights；
Step 3), photographic head is set in each track for shooting the picture in corresponding track, and the picture photographed is transferred to by different transmission channels the controller of traffic lights；
Step 4), when there is special vehicle and special vehicle is carrying out task；
Step 4.1), the controller of traffic lights judges the direct of travel of special vehicle according to the picture of photographic head shooting on each track, and namely feature vehicle carries out keeping straight on, turn left or turning right；
Step 4.2), the speed of the special vehicle calculated according to special vehicle identification device and the distance threshold preset calculate special vehicle and travel the time to traffic lights；
Step 4.3), if now the traffic lights of special vehicle direct of travel is green light, extend the interval of green light display time dynamic refresh so that the duration of green light deducts special vehicle and travels the difference of the time to traffic lights more than default time threshold；
Step 4.4), if now the traffic lights of special vehicle direct of travel is red light, accelerate the interval of red light display time dynamic refresh so that the duration of red light travels the time to traffic lights less than special vehicle.
Described default distance threshold is preferentially set to 500 meters.
As shown in Figure 1, special vehicle identification device comprises 2 photographic head and microcontroller, 2 photographic head collecting vehicle trade mark respectively of special vehicle identification device and vehicle external form profile also pass it to controller, and special vehicle, generally with siren, distinguishes common vehicle with this.Controller is according to whether car plate and external form profile comprehensive descision are special vehicles, and according to existing ripe photographic head velocity measuring technique, gathers current special vehicle speed.
The controller of traffic lights is according to the special vehicle picture of photographic head shooting on each track, judge that special vehicle is to turn or to want straight-line travelling, detect special vehicle according to radio receiver and be carrying out task, if, information is passed to traffic light controller, if it is not, reservation information, do not pass to traffic light controller.
The distance threshold preset is s, and speed is v, and when being now green light, remaining time is t1, when being now red light, remaining time is t2, refresh interval is T, then have according to object of which movement formula and work asTime, the time does not adjust；At that timeInterval1 is normal time 1 second, formula can be seen that and add interval；WhenTime, the time does not adjust；WhenTime, interval1 is normal time 1 second；When controller detects that the special vehicle being carrying out comes, adjust according to this time interval, it is ensured that special vehicle is decided to be green light to crossing one.
Those skilled in the art of the present technique it is understood that unless otherwise defined, all terms used herein (include technical term and scientific terminology) and have with the those of ordinary skill in art of the present invention be commonly understood by identical meaning.Should also be understood that in such as general dictionary, those terms of definition should be understood that have the meaning consistent with the meaning in the context of prior art, and unless defined as here, will not explain by idealization or excessively formal implication.
Above-described detailed description of the invention; the purpose of the present invention, technical scheme and beneficial effect have been further described; it is it should be understood that; the foregoing is only the specific embodiment of the present invention; it is not limited to the present invention; all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (3)
1. based on the traffic lamp control method of special vehicle identification, it is characterised in that comprise the following steps:
Step 1), is arranged on the distance threshold place from crossing front preset by special vehicle identification device, and special vehicle identification device sends this information to the controller of traffic lights after identifying special vehicle according to license plate and image processing techniques and calculate its speed；
Step 2), at special vehicle identification device place, wireless signal receiver is set, the execution task signal launched towards periphery when task opens siren for receiving special vehicle to perform, and the task signal that performs received is sent to the controller of traffic lights；
Step 3), arranges photographic head for shooting the picture in corresponding track, and the picture photographed is transferred to by different transmission channels the controller of traffic lights in each track；
, when there is special vehicle and special vehicle is carrying out task in step 4)；
Step 4.1), the controller of traffic lights judges the direct of travel of special vehicle according to the picture of photographic head shooting on each track, and namely feature vehicle carries out keeping straight on, turn left or turning right；
Step 4.2), the speed of the special vehicle calculated according to special vehicle identification device and the distance threshold preset calculate special vehicle and travel the time to traffic lights；
Step 4.3), if now the traffic lights of special vehicle direct of travel is green light, extend the interval of green light display time dynamic refresh so that the duration of green light deducts special vehicle and travels the difference of the time to traffic lights more than default time threshold；
Step 4.4), if now the traffic lights of special vehicle direct of travel is red light, accelerate the interval of red light display time dynamic refresh so that the duration of red light travels the time to traffic lights less than special vehicle.
2. the traffic lamp control method based on special vehicle identification according to claim 1, it is characterised in that described default distance threshold is 500 meters.
3. the traffic lamp control method based on special vehicle identification according to claim 1, it is characterised in that described special vehicle identification device comprises the first photographic head, second camera and microcontroller；
Described first photographic head, second camera are respectively used to the collecting vehicle trade mark and vehicle external form profile, and pass it to described microcontroller；
Described microcontroller is for identifying special vehicle according to contour of the vehicle profile and license plate number, and calculates the speed of special vehicle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610271985.0A CN105809994A (en) | 2016-04-28 | 2016-04-28 | Traffic light control method based on special vehicle identification |
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| CN201610271985.0A CN105809994A (en) | 2016-04-28 | 2016-04-28 | Traffic light control method based on special vehicle identification |
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| CN201610271985.0A Pending CN105809994A (en) | 2016-04-28 | 2016-04-28 | Traffic light control method based on special vehicle identification |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106778612A (en) * | 2016-12-16 | 2017-05-31 | 合肥寰景信息技术有限公司 | A kind of crossing special car recognition detection system based on video analysis |
| CN107170253A (en) * | 2017-04-22 | 2017-09-15 | 王蔡祥 | Vehicle is assisted quickly through the intelligent traffic signal control system and method at crossing |
| CN108280990A (en) * | 2016-12-30 | 2018-07-13 | 纵目科技（上海）股份有限公司 | Ambulance vehicles detection based on the detection of roof signal lamp and preventing collision method and system |
| CN108447270A (en) * | 2018-03-26 | 2018-08-24 | 马秋月 | A kind of equipment of record vehicle flowrate vehicle |
| CN109727461A (en) * | 2017-10-31 | 2019-05-07 | 余国桢 | Whistle control system for emergency vehicle |
| CN109767652A (en) * | 2019-02-27 | 2019-05-17 | 株洲太昌电子信息技术股份有限公司 | A kind of the security system and control method of railway locomotive rescue |
| CN110189528A (en) * | 2019-06-26 | 2019-08-30 | 南宁学院 | A kind of traffic light control system based on radar induction |
| CN110189532A (en) * | 2019-06-25 | 2019-08-30 | 常熟理工学院 | A kind of method for controlling traffic signal lights that auxiliary special car is current |
| CN110276967A (en) * | 2019-06-19 | 2019-09-24 | 东南大学 | A kind of special vehicle intersection signal priority control device and its application method |
| CN110689744A (en) * | 2018-07-06 | 2020-01-14 | 东旭科技集团有限公司 | Vehicle avoidance reminding method, device and system and readable storage medium |
| CN111210641A (en) * | 2020-01-15 | 2020-05-29 | 南京佳得振隆新能源汽车有限公司 | Intelligent traffic command control system |
| CN111554112A (en) * | 2020-04-27 | 2020-08-18 | 浙江宇视科技有限公司 | Vehicle scheduling method and system |
| CN111931726A (en) * | 2020-09-23 | 2020-11-13 | 北京百度网讯科技有限公司 | Traffic light detection method and device, computer storage medium and road side equipment |
| CN112950953A (en) * | 2021-02-19 | 2021-06-11 | 合肥海赛信息科技有限公司 | Special vehicle intelligent detection method based on video analysis |
| CN113053144A (en) * | 2019-12-27 | 2021-06-29 | 宇龙计算机通信科技(深圳)有限公司 | Traffic dispersion method, device, server and storage medium |
| CN113192352A (en) * | 2021-06-03 | 2021-07-30 | 山东交通学院 | Automatic driving method and system for receiving instructions of traffic management personnel |
| CN113256998A (en) * | 2021-05-18 | 2021-08-13 | 哈尔滨翼成科技有限公司 | Special vehicle and working state identification method and equipment thereof |
| CN113643534A (en) * | 2021-07-29 | 2021-11-12 | 北京万集科技股份有限公司 | Traffic control method and equipment |
| CN113781805A (en) * | 2021-09-10 | 2021-12-10 | 淮阴工学院 | Traffic light control system and control method for preferential passing of special vehicle |
| CN114067579A (en) * | 2021-10-21 | 2022-02-18 | 信通院车联网创新中心(成都)有限公司 | Intelligent traffic signal control system and control method thereof |
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Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106778612A (en) * | 2016-12-16 | 2017-05-31 | 合肥寰景信息技术有限公司 | A kind of crossing special car recognition detection system based on video analysis |
| CN108280990A (en) * | 2016-12-30 | 2018-07-13 | 纵目科技（上海）股份有限公司 | Ambulance vehicles detection based on the detection of roof signal lamp and preventing collision method and system |
| CN107170253A (en) * | 2017-04-22 | 2017-09-15 | 王蔡祥 | Vehicle is assisted quickly through the intelligent traffic signal control system and method at crossing |
| CN109727461B (en) * | 2017-10-31 | 2020-05-05 | 余国桢 | Signal control system for emergency vehicle |
| CN109727461A (en) * | 2017-10-31 | 2019-05-07 | 余国桢 | Whistle control system for emergency vehicle |
| CN108447270A (en) * | 2018-03-26 | 2018-08-24 | 马秋月 | A kind of equipment of record vehicle flowrate vehicle |
| CN110689744A (en) * | 2018-07-06 | 2020-01-14 | 东旭科技集团有限公司 | Vehicle avoidance reminding method, device and system and readable storage medium |
| CN109767652A (en) * | 2019-02-27 | 2019-05-17 | 株洲太昌电子信息技术股份有限公司 | A kind of the security system and control method of railway locomotive rescue |
| CN110276967A (en) * | 2019-06-19 | 2019-09-24 | 东南大学 | A kind of special vehicle intersection signal priority control device and its application method |
| CN110189532A (en) * | 2019-06-25 | 2019-08-30 | 常熟理工学院 | A kind of method for controlling traffic signal lights that auxiliary special car is current |
| CN110189528A (en) * | 2019-06-26 | 2019-08-30 | 南宁学院 | A kind of traffic light control system based on radar induction |
| CN113053144A (en) * | 2019-12-27 | 2021-06-29 | 宇龙计算机通信科技(深圳)有限公司 | Traffic dispersion method, device, server and storage medium |
| CN111210641A (en) * | 2020-01-15 | 2020-05-29 | 南京佳得振隆新能源汽车有限公司 | Intelligent traffic command control system |
| CN111554112A (en) * | 2020-04-27 | 2020-08-18 | 浙江宇视科技有限公司 | Vehicle scheduling method and system |
| CN111554112B (en) * | 2020-04-27 | 2021-12-03 | 浙江宇视科技有限公司 | Vehicle scheduling method and system |
| CN111931726A (en) * | 2020-09-23 | 2020-11-13 | 北京百度网讯科技有限公司 | Traffic light detection method and device, computer storage medium and road side equipment |
| CN111931726B (en) * | 2020-09-23 | 2024-06-11 | 阿波罗智联(北京)科技有限公司 | Traffic light detection method, device, computer storage medium and road side equipment |
| CN112950953A (en) * | 2021-02-19 | 2021-06-11 | 合肥海赛信息科技有限公司 | Special vehicle intelligent detection method based on video analysis |
| CN113256998A (en) * | 2021-05-18 | 2021-08-13 | 哈尔滨翼成科技有限公司 | Special vehicle and working state identification method and equipment thereof |
| CN113192352A (en) * | 2021-06-03 | 2021-07-30 | 山东交通学院 | Automatic driving method and system for receiving instructions of traffic management personnel |
| CN113192352B (en) * | 2021-06-03 | 2023-07-14 | 山东交通学院 | Automatic driving method and system for receiving instructions of traffic control personnel |
| CN113643534A (en) * | 2021-07-29 | 2021-11-12 | 北京万集科技股份有限公司 | Traffic control method and equipment |
| CN113643534B (en) * | 2021-07-29 | 2023-04-18 | 北京万集科技股份有限公司 | Traffic control method and equipment |
| CN113781805A (en) * | 2021-09-10 | 2021-12-10 | 淮阴工学院 | Traffic light control system and control method for preferential passing of special vehicle |
| CN114067579A (en) * | 2021-10-21 | 2022-02-18 | 信通院车联网创新中心(成都)有限公司 | Intelligent traffic signal control system and control method thereof |
| CN114067579B (en) * | 2021-10-21 | 2023-01-03 | 信通院车联网创新中心(成都)有限公司 | Intelligent traffic signal control system and control method thereof |
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