CN104376732A - Intelligent traffic light based on signal control processing technology and signal control method - Google Patents
Intelligent traffic light based on signal control processing technology and signal control method Download PDFInfo
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- CN104376732A CN104376732A CN201410606155.XA CN201410606155A CN104376732A CN 104376732 A CN104376732 A CN 104376732A CN 201410606155 A CN201410606155 A CN 201410606155A CN 104376732 A CN104376732 A CN 104376732A
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Abstract
The invention discloses an intelligent traffic light based on the signal control processing technology and a signal control method. The intelligent traffic light comprises a video detection device, an image processing module, an optimizing timing calculation module, a control module and a traffic signal display module, wherein the video detection device, the image processing module, the optimizing timing calculation module, the control module and the traffic signal display module are connected in sequence. Firstly, the video detection device shoots practical road conditions, vehicle queuing images are obtained, boundary operators are extracted through the image processing module according to the digital image processing technology, and a current vehicle queue length is worked out according to a built vehicle queue length model; then, vehicle queue length information is transmitted to a communication port of a single chip microcomputer through wireless communication, and the optimal green light duration is worked out according to the current vehicle queue length through a linear algorithm embedded in the single chip microcomputer. According to the intelligent traffic light based on the signal control processing technology and the signal control method, the traffic light changes intelligently according to traffic flow, and therefore the purposes of reducing traffic pressure, saving energy and reducing emission are achieved.
Description
Technical field
The invention belongs to traffic lights technical field, be specifically related to a kind of intelligent traffic light based on signal control treatment technology, the invention still further relates to the method adopting above-mentioned intelligent traffic light to carry out signal control.
Background technology
Now widely used stop-light has certain deficiency, the no matter peak period of vehicle flowrate or the low ebb phase, the working time of each state of traffic lights of the overwhelming majority is relatively fixing, also have the traffic lights of small part simply to set and adjust the time-controlling arrangement of pilot lamp according to the time period, but such control is very dumb, do not meet the theories such as modern society's " energy-saving and emission-reduction, high-efficient development ".Because possibility that is newly-built in big city and enlarging road is more and more less by space constraints, the emphasis of current city traffic administration also lays particular emphasis on and tightens traffic management, be all that application traffic signals distribute right-of-way to vehicle in time to the study general of level-crossing, thus realize vehicle separation in time.Therefore, for above deficiency, design the traffic lights of a intelligence, by gathering information of vehicle flowrate, the traffic lights time is changed flexibly along with the change of vehicle flowrate, thus reaches minimizing traffic pressure, the object of energy-saving and emission-reduction is very important.
Summary of the invention
The object of this invention is to provide a kind of intelligent traffic light based on signal control treatment technology, solving the traffic-control device existed in prior art according to the problem of vehicle flowrate Intelligent Transformation, thus can not reach minimizing traffic pressure, the object of energy-saving and emission-reduction.
Another object of the present invention is to the signal control method that a kind of intelligent traffic light based on signal control treatment technology is provided.
First technical scheme of the present invention is, a kind of intelligent traffic light based on signal control treatment technology, comprises the video detecting device, image processing module, optimization timing computing module, control module and the traffic signals display module that connect successively.
The feature of the present invention first technical scheme is also,
Control module is AT89C52 single-chip microcomputer.
Traffic signals display module is made up of 4 groups of red greenish-yellow coston light indicating modules.
4 groups of red greenish-yellow coston light indicating modules are made up of LED charactron.
The second technical scheme that the present invention adopts is, a kind of signal control method of the intelligent traffic light based on signal control treatment technology, adopt the intelligent traffic light based on signal control treatment technology, the described intelligent traffic light structure based on signal control treatment technology is: comprise the video detecting device, image processing module, optimization timing computing module, control module and the traffic signals display module that connect successively;
Specifically implement according to following steps:
Step 1: gather road conditions vehicle pictures by video detecting device, then carry out Image Edge-Detection based on image processing module, is passed to the pixel of detection and optimizes timing computing module;
Step 2: optimize the distance that timing computing module calculates the pixel of the image head and the tail that described step 1 obtains, obtain motorcade length;
Step 3: motorcade length step 2 obtained is with the form input control module of digital signal, and control module calculates an optimized green time by built-in linear algorithm; Optimized green time control module calculated realizes controlling in real time the intelligence of traffic lights to traffic signals display module with electric signal transmission.
The feature of the present invention second technical scheme is also,
Calculate motorcade length in step 2 specifically to implement according to following steps:
According to motorcade length computing formula:
In formula, θ is the field of view angle of video detecting device (1);
for the angle that the pixel detected is corresponding; L is the physical length that a pixel detecting is corresponding; R is the vertical resolution of image; H is the setting height(from bottom) of video detecting device (1); D is the horizontal range of camera to fleet's end.
Step 3 is specific as follows:
1), if the distance of camera shooting is L
0, green light minimum time T in the signal period
min, green light maximum time T
max, motorcade length is L;
2), single-chip microcomputer starts to control, and initializing set crossing green light is initially let pass time T
0;
3), video detecting device shooting wagon flow picture, is processed by image processing module, calculates the vehicle queue length L obtaining this phase place;
4), setting the green light time of letting pass is t_green=T
0+ △ t × L, wherein
5), obtain the Vehicle length L' of another phase place according to the 3rd step, now set a threshold value L
0=100, if L'< is L
0, continue, with the current phase place of green light clearance time t_green clearance, until current phase place reaches maximum cycle, to turn to another phase place;
6), if L'> is L
0, then the phase place of interrupting passing through turns to and performs another phase place;
7), if the green time t_green of the phase place of letting pass is more than T
max, turn to next phase place;
8), clearance phase place green light terminates, the green light clearance T of another phase place
min, and repeat 3) ~ 6), circulate repeatedly successively, thus realize the Based Intelligent Control to lamp system.
Control module is AT89C52 single-chip microcomputer.
Traffic signals display module is made up of 4 groups of red greenish-yellow coston light indicating modules.
4 groups of red greenish-yellow coston light indicating modules are made up of LED charactron.
The invention has the beneficial effects as follows, a kind of intelligent traffic light based on signal control treatment technology, by gathering information of vehicle flowrate, being changed along with the change of vehicle flowrate the traffic lights time flexibly, relatively inexpensive, obtaining information is many and accurately, reliable operation; Reach minimizing traffic pressure, the object of energy-saving and emission-reduction; Based on the signal control method of the intelligent traffic light of signal control treatment technology, traffic lights is controlled in real time, real-time time-mixed more can regulate road situation than the traffic lights of traditional set time, and it is comparatively obvious to improve effect, without exchange, direct control traffic lights, controls in real time.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of intelligent traffic light based on signal control treatment technology of the present invention;
Fig. 2 is the algorithm schematic diagram optimizing timing computing module in the signal control method of a kind of intelligent traffic light based on signal control treatment technology of the present invention;
Fig. 3 is the former figure of vehicle on road;
Fig. 4 is the edge image of the vehicle on the monitored road that obtains after Image Edge-Detection;
Fig. 5 is the physical length schematic diagram calculation of virtual representation vegetarian refreshments representative;
Fig. 6 is single chip machine controlling circuit figure;
Fig. 7 is east-west direction charactron interface schema;
Fig. 8 is North and South direction charactron interface schema.
In figure, 1. video detecting device, 2. image processing module, 3. optimize timing computing module, 4. control module, 5. traffic signals display module.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
The present invention is based on the intelligent traffic light of signal control treatment technology, structure as shown in Figure 1, comprise video detecting device 1, image processing module 2, optimization timing computing module 3 and the control module 4 and traffic signals display module 5 that connect successively, control module 4 selects AT89C52 single-chip microcomputer, traffic signals display module 5 is made up of 4 groups of red greenish-yellow coston light indicating modules, 4 groups of red greenish-yellow coston light indicating modules are made up of LED charactron, as shown in Figure 7, North and South direction LED charactron interface schema as shown in Figure 8 for east-west direction LED charactron interface schema.
The present invention is based on the signal control method of the intelligent traffic light of signal control treatment technology, adopt the intelligent traffic light based on signal control treatment technology, its structure is: comprise the video detecting device 1 connected successively, image processing module 2, optimize timing computing module 3 and control module 4 and traffic signals display module 5, control module 4 selects AT89C52 single-chip microcomputer, traffic signals display module 5 is made up of 4 groups of red greenish-yellow coston light indicating modules, 4 groups of red greenish-yellow coston light indicating modules are made up of LED charactron, control flow chart as shown in Figure 2, specifically implement according to following steps:
Step 1: gather road conditions vehicle pictures by video detecting device 1, the former figure of vehicle as shown in Figure 3, carry out Image Edge-Detection based on image processing module 2 again, obtain vehicle edge image as shown in Figure 4, the pixel of detection is passed to and optimizes timing computing module 3;
Step 2: optimize the distance that timing computing module 3 calculates the pixel of the image head and the tail that described step 1 obtains, as shown in Figure 5, obtain motorcade length;
Step 3: motorcade length step 2 obtained is with the form input control module 4 of digital signal, and control module 4 calculates an optimized green time by built-in linear algorithm, and control module circuit diagram as shown in Figure 6; Optimized green time control module 4 calculated realizes controlling in real time the intelligence of traffic lights to traffic signals display module 5 with electric signal transmission.
Calculate motorcade length in step 2 specifically to implement according to following steps:
According to motorcade length computing formula:
In formula, θ is the field of view angle of video detecting device 1;
for the angle that the pixel detected is corresponding; L is the physical length that a pixel detecting is corresponding; R is the vertical resolution of image; H is the setting height(from bottom) of video detecting device 1; D is the horizontal range of camera to fleet's end.
Step 3 is specific as follows:
1), if the distance of camera shooting is L
0, green light minimum time T in the signal period
min, green light maximum time T
max, motorcade length is L;
2), single-chip microcomputer starts to control, and initializing set crossing green light is initially let pass time T
0;
3), video detecting device 1 takes wagon flow picture, is processed by image processing module 2, calculates the vehicle queue length L obtaining this phase place;
4), setting the green light time of letting pass is t_green=T
0+ △ t × L, wherein
5), obtain the Vehicle length L' of another phase place according to the 3rd step, now set a threshold value L
0=100, if L'< is L
0, continue, with the current phase place of green light clearance time t_green clearance, until current phase place reaches maximum cycle, to turn to another phase place;
6), if L'> is L
0, then the phase place of interrupting passing through turns to and performs another phase place;
7), if the green time t_green of the phase place of letting pass is more than T
max, turn to next phase place;
8), clearance phase place green light terminates, the green light clearance T of another phase place
min, and repeat 3) ~ 6), circulate repeatedly successively, thus realize the Based Intelligent Control to lamp system.
Embodiment
Step 1: gather road conditions vehicle pictures by video detecting device 1, then carry out Image Edge-Detection based on image processing module 2, the pixel of detection is passed to and optimizes timing computing module 3;
Step 2: optimize the distance that timing computing module 3 calculates the pixel of the image head and the tail that described step 1 obtains, obtain motorcade length;
Step 3: motorcade length step 2 obtained is with the form input control module 4 of digital signal, and control module 4 calculates an optimized green time by built-in linear algorithm; Optimized green time control module 4 calculated realizes controlling in real time the intelligence of traffic lights to traffic signals display module 5 with electric signal transmission.
Calculate motorcade length in step 2 specifically to implement according to following steps:
According to motorcade length computing formula:
In formula, θ is the field of view angle of video detecting device 1;
for the angle that the pixel detected is corresponding; L is the physical length that a pixel detecting is corresponding; R is the vertical resolution of image; H is the setting height(from bottom) of video detecting device 1; D is the horizontal range of camera to fleet's end.
Step 3 is specific as follows:
1), if the distance of camera shooting is L
0=100m, green light minimum time T in the signal period
min=18s, green light maximum time T
max=60s, motorcade length is L;
2), single-chip microcomputer starts to control, and initializing set crossing green light is initially let pass time T
0=18s;
3), video detecting device 1 takes wagon flow picture, is processed by image processing module 2, calculates the vehicle queue length L obtaining this phase place;
4), setting the green light time of letting pass is t_green=T
0+ △ t × L, wherein
calculate △ t=0.42, i.e. t_green=18+0.42 × L;
5), obtain the Vehicle length L' of another phase place according to the 3rd step, now set a threshold value L
0=100, if L'< is L
0, continue, with the current phase place of green light clearance time t_green clearance, until current phase place reaches maximum cycle, to turn to another phase place;
6), if L'> is L
0, then the phase place of interrupting passing through turns to and performs another phase place;
7), if the green time t_green of the phase place of letting pass is more than T
max, turn to next phase place;
8), clearance phase place green light terminates, the green light clearance T of another phase place
min, and repeat 3) ~ 6), circulate repeatedly successively, thus realize the Based Intelligent Control to lamp system.
A kind of intelligent traffic light based on signal control treatment technology of the present invention and signal control method, have the following advantages:
1. road information is processed in real time, then directly feed back to traffic lights, more embody intelligentized control method than the traffic lights of existing fixing timing.
2., compared with existing intelligent traffic light, this programme need not pass through traffic grade head station, embodies the real-time of control.
3. green light timing scheme adopts linear algorithm, simpler than the algorithm of existing intelligent traffic light, easily realize, and effect of optimization is good.
4. existing equipment only need be changed by this programme, and increases corresponding data processing module, can reach real-time control effects, and relative to existing intelligent traffic light, low price, cost performance are high.
Claims (10)
1. the intelligent traffic light based on signal control treatment technology, it is characterized in that, comprise connect successively video detecting device (1), image processing module (2), optimize timing computing module (3), control module (4) and traffic signals display module (5).
2. a kind of intelligent traffic light based on signal control treatment technology according to claim 1, is characterized in that, described control module (4) is AT89C52 single-chip microcomputer.
3. a kind of intelligent traffic light based on signal control treatment technology according to claim 1, is characterized in that, described traffic signals display module (5) is made up of 4 groups of red greenish-yellow coston light indicating modules.
4. a kind of intelligent traffic light based on signal control treatment technology according to claim 3, is characterized in that, described 4 groups of red greenish-yellow coston light indicating modules are made up of LED charactron.
5. the signal control method based on the intelligent traffic light of signal control treatment technology, it is characterized in that, adopt based on the intelligent traffic light of signal control treatment technology, the described intelligent traffic light structure based on signal control treatment technology is: comprise connect successively video detecting device (1), image processing module (2), optimize timing computing module (3), control module (4) and traffic signals display module (5);
Specifically implement according to following steps:
Step 1: gather road conditions vehicle pictures by video detecting device (1), then carry out Image Edge-Detection based on image processing module (2), is passed to the pixel of detection and optimizes timing computing module (3);
Step 2: optimize the distance that timing computing module (3) calculates the pixel of the image head and the tail that described step 1 obtains, obtain motorcade length;
Step 3: motorcade length step 2 obtained is with the form input control module (4) of digital signal, and control module (4) calculates an optimized green time by built-in linear algorithm; Optimized green time control module (4) calculated realizes controlling in real time the intelligence of traffic lights to traffic signals display module (5) with electric signal transmission.
6. the signal control method of the intelligent traffic light based on signal control treatment technology according to claim 5, is characterized in that, calculates motorcade length and specifically implement according to following steps in described step 2:
According to motorcade length computing formula:
In formula, θ is the field of view angle of video detecting device (1);
for the angle that the pixel detected is corresponding; L is the physical length that a pixel detecting is corresponding; R is the vertical resolution of image; H is the setting height(from bottom) of video detecting device (1); D is the horizontal range of camera to fleet's end.
7. the signal control method of the intelligent traffic light based on signal control treatment technology according to claim 5, it is characterized in that, described step 3 is specific as follows:
1), if the distance of camera shooting is L
0, green light minimum time T in the signal period
min, green light maximum time T
max, motorcade length is L;
2), single-chip microcomputer starts to control, and initializing set crossing green light is initially let pass time T
0;
3), video detecting device (1) shooting wagon flow picture, is processed by image processing module (2), calculates the vehicle queue length L obtaining this phase place;
4), setting the green light time of letting pass is t_green=T
0+ △ t × L, wherein
5), obtain the Vehicle length L' of another phase place according to the 3rd step, now set a threshold value L
0=100, if L'< is L
0, continue, with the current phase place of green light clearance time t_green clearance, until current phase place reaches maximum cycle, to turn to another phase place;
6), if L'> is L
0, then the phase place of interrupting passing through turns to and performs another phase place;
7), if the green time t_green of the phase place of letting pass is more than T
max, turn to next phase place;
8), clearance phase place green light terminates, the green light clearance T of another phase place
min, and repeat 3) ~ 6), circulate repeatedly successively, thus realize the Based Intelligent Control to lamp system.
8. a kind of intelligent traffic light based on signal control treatment technology according to claim 5, is characterized in that, described control module (4) is AT89C52 single-chip microcomputer.
9. a kind of intelligent traffic light based on signal control treatment technology according to claim 5, is characterized in that, described traffic signals display module (5) is made up of 4 groups of red greenish-yellow coston light indicating modules.
10. a kind of intelligent traffic light based on signal control treatment technology according to claim 9, is characterized in that, described 4 groups of red greenish-yellow coston light indicating modules are made up of LED charactron.
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| CN108510763A (en) * | 2018-05-27 | 2018-09-07 | 深圳市中透科技有限公司 | A kind of method for controlling traffic signal lights and system |
| CN108765990A (en) * | 2018-06-15 | 2018-11-06 | 歌尔科技有限公司 | A kind of intellectual traffic control method, apparatus, equipment and system |
| CN110164153A (en) * | 2019-05-30 | 2019-08-23 | 哈尔滨理工大学 | A kind of adaptive timing method of traffic signals |
| CN110209068A (en) * | 2019-06-11 | 2019-09-06 | 滁州学院 | A kind of traffic lights timing designing and simulation method |
| CN110322708A (en) * | 2019-08-01 | 2019-10-11 | 陕西科技大学 | A kind of traffic control device and method based on image processing techniques |
| CN110503930A (en) * | 2019-07-05 | 2019-11-26 | 太仓秦风广告传媒有限公司 | A kind of electronic bill-board display methods and its system with traffic lights linkage |
| CN111161552A (en) * | 2019-12-31 | 2020-05-15 | 西安航天华迅科技有限公司 | Traffic auxiliary system based on artificial intelligence |
| CN111445693A (en) * | 2019-12-31 | 2020-07-24 | 南宁三奇电工科技有限公司 | Intelligent traffic control method, device, storage medium and computer equipment |
| CN111653107A (en) * | 2020-05-29 | 2020-09-11 | 山东交通职业学院 | Intelligent transportation system |
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| CN113362617A (en) * | 2021-06-01 | 2021-09-07 | 淮阴工学院 | Traffic light control system based on CLY Point1 algorithm |
| CN114707560A (en) * | 2022-05-19 | 2022-07-05 | 北京闪马智建科技有限公司 | Data signal processing method and device, storage medium and electronic device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108281016A (en) * | 2018-03-16 | 2018-07-13 | 上海市格致中学 | Traffic lights sensing device |
| CN108510763A (en) * | 2018-05-27 | 2018-09-07 | 深圳市中透科技有限公司 | A kind of method for controlling traffic signal lights and system |
| CN108765990A (en) * | 2018-06-15 | 2018-11-06 | 歌尔科技有限公司 | A kind of intellectual traffic control method, apparatus, equipment and system |
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| CN110164153A (en) * | 2019-05-30 | 2019-08-23 | 哈尔滨理工大学 | A kind of adaptive timing method of traffic signals |
| CN110209068A (en) * | 2019-06-11 | 2019-09-06 | 滁州学院 | A kind of traffic lights timing designing and simulation method |
| CN110503930A (en) * | 2019-07-05 | 2019-11-26 | 太仓秦风广告传媒有限公司 | A kind of electronic bill-board display methods and its system with traffic lights linkage |
| CN110322708A (en) * | 2019-08-01 | 2019-10-11 | 陕西科技大学 | A kind of traffic control device and method based on image processing techniques |
| CN111161552A (en) * | 2019-12-31 | 2020-05-15 | 西安航天华迅科技有限公司 | Traffic auxiliary system based on artificial intelligence |
| CN111445693A (en) * | 2019-12-31 | 2020-07-24 | 南宁三奇电工科技有限公司 | Intelligent traffic control method, device, storage medium and computer equipment |
| CN111653107A (en) * | 2020-05-29 | 2020-09-11 | 山东交通职业学院 | Intelligent transportation system |
| CN111815972A (en) * | 2020-07-07 | 2020-10-23 | 上海电机学院 | Traffic signal lamp control system |
| CN113362617A (en) * | 2021-06-01 | 2021-09-07 | 淮阴工学院 | Traffic light control system based on CLY Point1 algorithm |
| CN114707560A (en) * | 2022-05-19 | 2022-07-05 | 北京闪马智建科技有限公司 | Data signal processing method and device, storage medium and electronic device |
| CN114707560B (en) * | 2022-05-19 | 2024-02-09 | 北京闪马智建科技有限公司 | Data signal processing method and device, storage medium and electronic device |
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Application publication date: 20150225 |
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