CN105070071A - Traffic signal lamp control system and method - Google Patents
Traffic signal lamp control system and method Download PDFInfo
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- CN105070071A CN105070071A CN201510535981.4A CN201510535981A CN105070071A CN 105070071 A CN105070071 A CN 105070071A CN 201510535981 A CN201510535981 A CN 201510535981A CN 105070071 A CN105070071 A CN 105070071A
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Abstract
The invention discloses a traffic signal lamp control system and method. The system comprises multiple detection coils, multiple LC magnetic flux detectors, a single-chip microcomputer, a microprocessor and multiple traffic lamps, wherein each detection coil is connected with the single-chip microcomputer through one LC magnetic flux detector, the single-chip microcomputer is connected with the microprocessor, and the microprocessor is connected with the multiple traffic lamps; the detection coils detect whether vehicles pass through corresponding lanes and send inductance signals to the LC magnetic flux detectors; the LC magnetic flux detectors generate concussion frequency signals for sending to the single-chip microcomputer; the single-chip microcomputer, according to the frequency signals, determine whether vehicles pass through stop lines on the lanes; and the microcontroller controls switching of the traffic signal lamps at crossroads, reads determination results from the single-chip microcomputer in case of a yellow lamp, and according to the determination results, sends control signals to the traffic lamps for delaying red-lamp time in corresponding directions or switching the traffic signal lamps. According to the invention, the pass efficiency of the vehicles at the crossroads can be improved, and driving safety of the vehicles at the crossroads can also be guaranteed.
Description
Technical field
The present invention relates to technical field of traffic control, be specifically related to a kind of traffic light control system and method.
Background technology
In traffic programme, amber light mainly plays a part " cleaning crossing ", between namely signal lamp switches, ensures last car safety of last green light direction.But in fact, in certain distance, automobile is generally difficult to stop under inertial force effect, and generally only have three seconds due to the redden process of lamp of amber light.So in traffic rules after green light flavescence lamp, not allowing automobile pass through, principle is right, but implement in compare be difficult to control.Because many traffic lights do not arrange the reading the clock device of countdown, when very difficult judgement becomes amber light from green light.In ice and snow road situation, when green light becomes suddenly amber light, be difficult to check car.If be just that amber light closes to an end, another one travel direction just becomes green light at once, if another one direction vehicle launch is very fast thus, or just exercising crossing red light, to become the fleet vehicles speed of a motor vehicle of green light very fast, be easy to and rush the vehicle collision of amber light, there is traffic hazard, report is had during this type of traffic hazard, in order to avoid traffic hazard, some crossing is provided with amber light and terminates the entirely red transition state in four sides, solves safety problem like this, if but when not rushing amber light, four sides is entirely red wastes transit time, and the traffic efficiency at crossing is reduced.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of traffic light control system and method, can either improve the traffic efficiency of crossroad vehicle, can ensure again the driving safety of crossroad vehicle.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: a kind of traffic light control system, comprise multiple magnetic test coil, multiple LC flux detection device, single-chip microcomputer, microprocessor and multiple traffic lights, each magnetic test coil is connected with single-chip microcomputer by a LC flux detection device, single-chip microcomputer is connected with microprocessor, and microprocessor is connected with multiple traffic lights; Described magnetic test coil is arranged on the front of crossroad vehicle entrance driveway stop line, and each entrance driveway is provided with a magnetic test coil;
Described magnetic test coil, for detecting the stop line whether having vehicle on the track that this magnetic test coil is corresponding, and sends to LC flux detection device by inductance signal;
Described LC flux detection device, for producing concussion frequency signal according to inductance signal, and sends to single-chip microcomputer;
Described single-chip microcomputer, for judging whether that according to described frequency signal vehicle is by the stop line on this track, obtains testing result;
Described microprocessor, for controlling the switching of crossroad access signal lamp, and when traffic lights are amber light, testing result is read in real time from single-chip microcomputer, and then control the red time the need of postponing on the direction vertical with this direction, track according to testing result, and transmit control signal to traffic lights;
Described multichannel traffic lights, for according to the red time in described microprocessor-based control signal delay respective direction or switch traffic lights.
The invention has the beneficial effects as follows: by the front of entrance driveway stop line at the parting of the ways, magnetic test coil is set, and identified whether vehicle by this magnetic test coil by single-chip microcomputer, and then microprocessor increases the four sides entirely red time according to reading corresponding data to judge whether from single-chip microcomputer during amber light, thus ensure that communication efficiency and the vehicle driving safety of crossroad vehicle.
On the basis of technique scheme, the present invention can also do following improvement:
Further, magnetic test coil is arranged on 1-2m place, entrance driveway stop line front.
The beneficial effect of above-mentioned further scheme is adopted to be: magnetic test coil to be arranged on this position, can to detect more accurately rushing amber light vehicle.
Further, described magnetic test coil is embedded in underground.
Further, described microprocessor is also connected with traffic control center by RJ45 interface.
Further, described magnetic test coil is connected by optical cable with described LC flux detection device.
Further, when needs postpone red time, the time delay of red light is calculated in accordance with the following methods:
In formula, I is red light time delay, and unit is s; S is the distance from stop line to point of crossing, crossroad, and unit is m; V is the speed of a motor vehicle that vehicle travels on entrance driveway, and unit is m/s; T is the car brakeing time, and unit is s.
A kind of method for controlling traffic signal lights, comprises the following steps:
Step 1, magnetic test coil detects the stop line whether having vehicle on the track that this magnetic test coil is corresponding, and inductance signal is sent to LC flux detection device;
Step 2, LC flux detection device produces concussion frequency signal according to inductance signal, and sends to single-chip microcomputer;
Step 3, according to described frequency signal, single-chip microcomputer judges whether that vehicle is by the stop line on this track, obtains testing result;
Step 4, the switching of Microprocessor S3C44B0X crossroad access signal lamp, and when traffic lights are amber light, testing result is read in real time from single-chip microcomputer, and then control the red time the need of postponing on the direction vertical with this direction, track according to testing result, and transmit control signal to traffic lights;
Step 5, multichannel traffic lights is according to the red time in described microprocessor-based control signal delay respective direction or switch traffic lights.
On the basis of technique scheme, the present invention can also do following improvement:
Further, in step 4 when needs postpone red time, the time delay of red light is calculated in accordance with the following methods:
In formula, I is red light time delay, and unit is s; S is the distance from stop line to point of crossing, crossroad, and unit is m; V is the speed of a motor vehicle that vehicle travels on entrance driveway, and unit is m/s; T is the car brakeing time, and unit is s.
The invention has the beneficial effects as follows: whether have vehicle to rush amber light by detecting crossroad, and then whether microprocessor judges increases the four sides entirely red time, therefore ensure that communication efficiency and the vehicle driving safety of crossroad vehicle.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of traffic light control system of the present invention;
Fig. 2 is the schematic diagram of the setting of magnetic test coil in the present invention;
Fig. 3 is the schematic flow sheet of a kind of method for controlling traffic signal lights of the present invention.
In accompanying drawing, the list of parts representated by each label is as follows:
1, magnetic test coil, 2, LC flux detection device, 3, single-chip microcomputer, 4, microprocessor, 5, traffic lights.
Embodiment
Be described principle of the present invention and feature below in conjunction with accompanying drawing, example, only for explaining the present invention, is not intended to limit scope of the present invention.
As shown in Figure 1, a kind of traffic light control system, comprise multiple magnetic test coil 1, multiple LC flux detection device 2, single-chip microcomputer 3, microprocessor 4 and multiple traffic lights 5, each magnetic test coil 1 is connected with single-chip microcomputer 3 by a LC flux detection device 2, single-chip microcomputer 3 is connected with microprocessor 4, and microprocessor 4 is connected with multiple traffic lights 5; Magnetic test coil 1 is arranged on the front of crossroad vehicle entrance driveway stop line, and each entrance driveway is provided with a magnetic test coil; Microprocessor 3 is also connected with traffic control center by RJ45 interface.Magnetic test coil 1 is connected by optical cable with LC flux detection device 2.Wherein, as shown in Figure 2, the track that vehicle sails crossroad into is called entrance driveway, the track sailing out of crossroad is called exit ramp, owing to being detect crossroad whether to have vehicle to rush amber light, therefore, only need the underground at the 1-2m place, stop line front of entrance driveway at the parting of the ways that magnetic test coil is set.Magnetic test coil is between entrance driveway and exit ramp.
Magnetic test coil 1, for detecting the stop line whether having vehicle on the track that this magnetic test coil is corresponding, and sends to LC flux detection device 2 by inductance signal; When do not have vehicle by time, then magnetic test coil sends the first inductance signal to LC flux detection device, when have vehicle by time, the inductance of magnetic test coil then can change, at this moment by transmission second inductance signal to LC flux detection device;
LC flux detection device 2, for producing concussion frequency signal according to inductance signal, and sends to single-chip microcomputer 3; When the inductance signal received is the first inductance signal, then LC flux detection device produces the first concussion frequency signal, and when the inductance signal received is the second inductance signal, then LC flux detection device produces the second concussion frequency signal;
According to concussion frequency signal, single-chip microcomputer 3, for judging whether that vehicle is by the stop line on this track, obtains testing result, if the first concussion frequency signal, then indicate without vehicle through magnetic test coil, if the second concussion frequency signal, then indicate that vehicle is through magnetic test coil;
Microprocessor 4, for controlling the switching of crossroad access signal lamp, and when traffic lights are amber light, testing result is read in real time from single-chip microcomputer 3, and then control the red time the need of postponing on the direction vertical with this direction, track according to testing result, and transmit control signal to traffic lights 5; Now, if the testing result read is not for having vehicle through magnetic test coil, then according to the switching carrying out signal lamp switching time of normal signal lamp, if the testing result read is for certain import track has vehicle to roll away from through magnetic test coil, the signal of the red time on the direction that then transmission lag is vertical with this entrance driveway, to signal lamp, calculates the time delay of red light the time delay of red light in accordance with the following methods:
In formula, I is red light time delay, and unit is s; S is the distance from stop line to point of crossing, crossroad, and unit is m; V is the speed of a motor vehicle that vehicle travels on entrance driveway, and unit is m/s; T is the car brakeing time, and unit is s.
Multichannel traffic lights 5, for postponing the red time in respective direction according to the control signal of microprocessor 4 or switching traffic lights.
Fig. 3 is a kind of method for controlling traffic signal lights, comprises the following steps:
Step 1, magnetic test coil 1 detects the stop line whether having vehicle on the track that this magnetic test coil is corresponding, and inductance signal is sent to LC flux detection device 2;
Step 2, LC flux detection device 2 produces concussion frequency signal according to inductance signal, and sends to single-chip microcomputer 3;
Step 3, according to frequency signal, single-chip microcomputer 3 judges whether that vehicle is by the stop line on this track, obtains testing result;
Step 4, microprocessor 4 controls the switching of crossroad access signal lamp, and when traffic lights are amber light, testing result is read in real time from single-chip microcomputer 3, and then control the red time the need of postponing on the direction vertical with this direction, track according to testing result, and transmit control signal to traffic lights 5; When needs postpone red time, calculate the time delay of red light in accordance with the following methods:
In formula, I is red light time delay, and unit is s; S is the distance from stop line to point of crossing, crossroad, and unit is m; V is the speed of a motor vehicle that vehicle travels on entrance driveway, and unit is m/s; T is the car brakeing time, and unit is s.
Step 5, multichannel traffic lights 5 postpones the red time in respective direction according to the control signal of microprocessor 4 or switches traffic lights.
These are only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a traffic light control system, it is characterized in that, comprise multiple magnetic test coil (1), multiple LC flux detection device (2), single-chip microcomputer (3), microprocessor (4) and multiple traffic lights (5), each magnetic test coil (1) is connected with single-chip microcomputer (3) by a LC flux detection device (2), single-chip microcomputer (3) is connected with microprocessor (4), and microprocessor (4) is connected with multiple traffic lights (5); Described magnetic test coil (1) is arranged on the front of crossroad vehicle entrance driveway stop line, and each entrance driveway is provided with a magnetic test coil;
Described magnetic test coil (1), for detecting the stop line whether having vehicle on the track that this magnetic test coil is corresponding, and sends to LC flux detection device (2) by inductance signal;
Described LC flux detection device (2), for producing concussion frequency signal according to inductance signal, and sends to single-chip microcomputer (3);
Described single-chip microcomputer (3), for judging whether that according to described frequency signal vehicle is by the stop line on this track, obtains testing result;
Described microprocessor (4), for controlling the switching of crossroad access signal lamp, and when traffic lights are amber light, testing result is read in real time from single-chip microcomputer (3), and then control the red time the need of postponing on the direction vertical with this direction, track according to testing result, and transmit control signal to traffic lights (5);
Described multichannel traffic lights (5), for postponing the red time in respective direction according to the control signal of described microprocessor (4) or switching traffic lights.
2. a kind of traffic light control system according to claim 1, it is characterized in that, described magnetic test coil (11) is arranged on 1-2m place, entrance driveway stop line front.
3. a kind of traffic light control system according to claim 1 or 2, is characterized in that, described magnetic test coil (1) is embedded in underground.
4. a kind of traffic light control system according to claim 1, is characterized in that, described microprocessor (3) is also connected with traffic control center by RJ45 interface.
5. a kind of traffic light control system according to claim 1, it is characterized in that, described magnetic test coil (1) is connected by optical cable with described LC flux detection device (2).
6. a kind of traffic light control system according to claim 1, is characterized in that, when needs postpone red time, calculates the time delay of red light in accordance with the following methods:
In formula, I is red light time delay, and unit is second; S is the distance from stop line to point of crossing, crossroad, and unit is rice; V is the speed of a motor vehicle that vehicle travels on entrance driveway, and unit is meter per second; T is the car brakeing time, and unit is second.
7. a method for controlling traffic signal lights, is characterized in that, comprises the following steps:
Step 1, magnetic test coil (1) detects the stop line whether having vehicle on the track that this magnetic test coil is corresponding, and inductance signal is sent to LC flux detection device (2);
Step 2, LC flux detection device (2) produces concussion frequency signal according to inductance signal, and sends to single-chip microcomputer (3);
Step 3, according to described frequency signal, single-chip microcomputer (3) judges whether that vehicle is by the stop line on this track, obtains testing result;
Step 4, microprocessor (4) controls the switching of crossroad access signal lamp, and when traffic lights are amber light, testing result is read in real time from single-chip microcomputer (3), and then control the red time the need of postponing on the direction vertical with this direction, track according to testing result, and transmit control signal to traffic lights (5);
Step 5, multichannel traffic lights (5) postpones the red time in respective direction according to the control signal of described microprocessor (4) or switches traffic lights.
8. a kind of method for controlling traffic signal lights according to claim 7, is characterized in that, in described step 4 when needs postpone red time, calculates the time delay of red light in accordance with the following methods:
In formula, I is red light time delay, and unit is second; S is the distance from stop line to point of crossing, crossroad, and unit is rice; V is the speed of a motor vehicle that vehicle travels on entrance driveway, and unit is meter per second; T is the car brakeing time, and unit is second.
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| CN201510535981.4A CN105070071A (en) | 2015-08-27 | 2015-08-27 | Traffic signal lamp control system and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108399760A (en) * | 2018-04-03 | 2018-08-14 | 浙江警察学院 | A kind of ground induction coil formula red time lengthening device and its method |
| CN109389836A (en) * | 2017-08-03 | 2019-02-26 | 杭州海康威视数字技术股份有限公司 | Control method, device, system and the controller of traffic lights |
| WO2021169104A1 (en) * | 2020-02-28 | 2021-09-02 | 平安国际智慧城市科技股份有限公司 | Signal data processing method, system, computer device, and storage medium |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0318668A2 (en) * | 1987-10-14 | 1989-06-07 | Sonic Systems Corporation | Siren detector |
| DE19848405C2 (en) * | 1997-04-21 | 2002-10-10 | Stuehrenberg Gmbh Elektrobau S | Traffic signal control method |
| CN101470965A (en) * | 2007-12-26 | 2009-07-01 | 奥城同立科技开发（北京）有限公司 | Automatic control type traffic light control system |
| CN102194324A (en) * | 2010-03-18 | 2011-09-21 | 黄光佗 | Real-time distribution control method of road traffic signal lamp |
| CN202929847U (en) * | 2012-09-27 | 2013-05-08 | 长安大学 | Ground inductive coil based intelligent traffic light controller |
| CN103514747A (en) * | 2013-10-10 | 2014-01-15 | 张肖邦 | Intelligent control method for traffic light at highway intersection |
| CN104021683A (en) * | 2014-05-23 | 2014-09-03 | 河北工业大学 | Self-adaptive signal timing method for yellow lamp snapshot of intersection |
| CN204215561U (en) * | 2014-10-17 | 2015-03-18 | 天津通翔智能交通系统有限公司 | A kind of road traffic signal controller and control system |
-
2015
- 2015-08-27 CN CN201510535981.4A patent/CN105070071A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0318668A2 (en) * | 1987-10-14 | 1989-06-07 | Sonic Systems Corporation | Siren detector |
| DE19848405C2 (en) * | 1997-04-21 | 2002-10-10 | Stuehrenberg Gmbh Elektrobau S | Traffic signal control method |
| CN101470965A (en) * | 2007-12-26 | 2009-07-01 | 奥城同立科技开发（北京）有限公司 | Automatic control type traffic light control system |
| CN102194324A (en) * | 2010-03-18 | 2011-09-21 | 黄光佗 | Real-time distribution control method of road traffic signal lamp |
| CN202929847U (en) * | 2012-09-27 | 2013-05-08 | 长安大学 | Ground inductive coil based intelligent traffic light controller |
| CN103514747A (en) * | 2013-10-10 | 2014-01-15 | 张肖邦 | Intelligent control method for traffic light at highway intersection |
| CN104021683A (en) * | 2014-05-23 | 2014-09-03 | 河北工业大学 | Self-adaptive signal timing method for yellow lamp snapshot of intersection |
| CN204215561U (en) * | 2014-10-17 | 2015-03-18 | 天津通翔智能交通系统有限公司 | A kind of road traffic signal controller and control system |
Non-Patent Citations (1)
| Title |
|---|
| 李颖宏等: "《道路交通信息检测技术及应用》", 31 January 2014 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109389836A (en) * | 2017-08-03 | 2019-02-26 | 杭州海康威视数字技术股份有限公司 | Control method, device, system and the controller of traffic lights |
| CN108399760A (en) * | 2018-04-03 | 2018-08-14 | 浙江警察学院 | A kind of ground induction coil formula red time lengthening device and its method |
| WO2021169104A1 (en) * | 2020-02-28 | 2021-09-02 | 平安国际智慧城市科技股份有限公司 | Signal data processing method, system, computer device, and storage medium |
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