CN101470965A - Automatic control type traffic light control system - Google Patents
Automatic control type traffic light control system Download PDFInfo
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- CN101470965A CN101470965A CNA2007103038458A CN200710303845A CN101470965A CN 101470965 A CN101470965 A CN 101470965A CN A2007103038458 A CNA2007103038458 A CN A2007103038458A CN 200710303845 A CN200710303845 A CN 200710303845A CN 101470965 A CN101470965 A CN 101470965A
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Abstract
The invention relates to a self-controlled type traffic light control system, which comprises a central control unit which is used to control switching actions of traffic lights, wherein the central control unit is provided with a parameter setting and inputting device, a forced switch device and a multistage induction coil detecting device, wherein the multistage induction coil detecting device is mainly composed of a plurality of induction coils which are distributed underground along the extending direction of a road, wherein certain distance is left between the induction coils, a signal output line of each induction coil is switched into the central control unit through a corresponding interface circuit, a vehicle detecting signal is sent to a central processing unit, the central processing unit is used to analyze and operate the vehicle detecting signal, and the vehicle releasing time on different directions and the releasing order on each direction can be automatically adjusted according to the difference of the static vehicle queuing length of each road. The control system can automatically adjust a traffic light control parameter according to traffic flow changes on different directions to improve the traffic efficiency of intersections and to realize the optimum control to the intersection traffic.
Description
Technical field
The present invention relates to a kind of automatic control type traffic light control system, be mainly used in the control traffic lights.
Technical background
Existing controlling system of traffic light is set in place in the rack in traffic lights roadside, action by central control unit control traffic lights switch, realize the conversion successively of traffic lights, this control system is provided with parameter input media and force switch device is set, controlled variable such as input media input control traffic lights conversion sequence and switching time are set by parameter, realize the direct control of people by the force switch device to traffic lights, the defective of this technology is automatically to regulate controlled variable according to the magnitude of traffic flow of all directions, therefore after artificial setting controlled variable, no matter how each time period traffic conditions changes, all can not initiatively adapt to traffic, make crossing traffic control can not be in optimum condition frequently.
Summary of the invention
For overcoming the defective of prior art, the invention provides a kind of automatic control type traffic light control system, this control system can change according to the magnitude of traffic flow of different directions, carries out the adjusting of traffic lights controlled variable automatically, to improve the traffic efficiency at crossing, realize Optimal Control to crossing traffic.
The present invention realizes that the above-mentioned purpose technical scheme is: a kind of automatic control type traffic light control system, comprise the central control unit that is used to control the traffic lights switch motion, described central control unit is provided with parameter input media is set, force switch device and multistage ground induction coil pick-up unit, described multistage coil pick-up unit mainly constitutes by be distributed in underground a plurality of ground induction coil along the road bearing of trend, leave certain distance between each ground induction coil, the output line of each ground induction coil inserts described central control unit by corresponding interface circuits, send vehicle detection signal to described CPU (central processing unit), described CPU (central processing unit) is analyzed computing to described vehicle detection signal, judge the transport condition whether vehicle and vehicle are arranged on the road, and calculate the queue length of stationary vehicle on the road, the let pass clearance order of time and all directions of the vehicle of adjusting different directions automatically according to each road stationary vehicle queue length.
Owing to be provided with a plurality of ground induction coils that distribute along the road bearing of trend, when stationary vehicle is waited in line green light, ground induction coil can detect its top ground on whether have automobile storage or have vehicle to cross, the signal of its output changes, whether described central control unit is judged according to each ground induction coil variation of output signals on the road of this position has vehicle to be parked on the road surface, and then judge the length of the queuing of stationary vehicle on this road, in certain direction queue length during for a long time obviously greater than other directions, then prolong the clearance time of this direction, conversion sequence and switching time to traffic lights are adjusted accordingly, make it to be suitable for the actual traffic state, can improve the traffic capacity of road cross thus to greatest extent, undue blocking up can not appear causing because of the traffic lights control mode is not good in the road that guarantees all directions, help the unimpeded of road, made things convenient for people's life, particularly in rush hour on and off duty, because the main flow direction of working peak and next stream of people in rush hour and wagon flow is different, adopt single traffic lights control mode to attend to one thing and lose sight of another, and in view of the restriction of police strength, can not carry out the change of traffic lights control mode at any time by manual type again, the present invention can solve this contradiction just well, helps the current optimum condition that is in of road cross.
Description of drawings
Fig. 1 is a structured flowchart of the present invention.
Embodiment
Referring to Fig. 1, the invention provides a kind of automatic control type traffic light control system, comprise the central control unit that is used to control the traffic lights switch motion, described central control unit is provided with parameter input media is set, force switch device and multistage ground induction coil pick-up unit, described multistage coil pick-up unit mainly constitutes by be distributed in underground a plurality of ground induction coil along the road bearing of trend, leave certain distance between each ground induction coil, the output line of each ground induction coil inserts described central control unit by corresponding interface circuits, send vehicle detection signal to described CPU (central processing unit), described CPU (central processing unit) is analyzed computing to described vehicle detection signal, judge the transport condition whether vehicle and vehicle are arranged on the road, and calculate the queue length of stationary vehicle on the road, the let pass clearance order of time and all directions of the vehicle of adjusting different directions automatically according to each road stationary vehicle queue length.
Described intelligent controller need pass through the following step when calculating the stationary vehicle queue length:
(1), judges whether each ground induction coil top has automobile storage to exist according to the output of ground induction coil;
(2), judge the transport condition of ground induction coil upper vehicle according to of the output of adjacent each ground induction coil at adjacent each time point;
(3) calculate stationary vehicle queue length on this road, this distance stops the distance that the vehicle afterbody stops to the crossing for last;
(4) judge the minimum and maximum road of stationary vehicle queue length.
The adjustment of traffic lights controlled variable is carried out according to default program or pattern, can adopt following principle:
(1) under the cross one another situation of road of road that increases stationary vehicle queue length maximum and minimizing stationary vehicle queue length minimum, increase the green light opening time of the road of stationary vehicle queue length maximum, reduce the green light opening time of the road of stationary vehicle queue length minimum;
(2) when the road of road that increases stationary vehicle queue length maximum and minimizing stationary vehicle queue length minimum is the same road of both sides, crossing, change the mode that two-way craspedodrome is let pass simultaneously, the mode that adopts unidirectional craspedodrome and turning (particularly turning left) to let pass simultaneously;
(3), change the clearance time of turning and keeping straight on under same road craspedodrome, left-hand bend and the visibly different situation of right-hand bend jam situation.
Be the comparability that ensures that the queue length of all directions road stationary vehicle is judged, should select to calculate on the point at the same time in the cycle of letting pass and compare, a kind of preferred mode is to adopt the firm time point for calculating when bright of this direction green light, because on this time point, can think stationary vehicle queue length maximum on the road basically.Thus, the vehicle whether stationary vehicle is arranged on each ground induction coil is judged in described intelligent controller should read each ground induction coil on this time point and the several time points before or after it output thus.The ground induction coil that vehicle is stopped having in farthest top from the crossing just can recognize to the distance at crossing that to do be described stationary vehicle queue length, certainly, this judgment mode is a kind of mode of simplification, for more accurate, also can under the support of software, carry out the speed of a motor vehicle and vehicle location judgement, judge so that when vehicle stops between two ground induction coils, also make comparatively accurately according to the vehicle condition on the adjacent ground induction coil on a plurality of time points.
For the position of avoiding ground induction coil just between two vehicles that stop, cause and fail to judge, ground induction coil can be distributed in pairs or three or three distributions in groups, take all factors into consideration appropriate distance scope and various vehicle length between the queuing vehicle, so that the vehicle of stopping to be arranged when queuing on the ground, three ground induction coil tops that makes two paired ground induction coil tops or distribute in groups, one of them ground induction coil is positioned at a below that stops vehicle just at least.
Described central control unit, parameter are provided with input media, force switch device and intelligent detection device and all can be installed in the rack, described rack is provided with pick-proof and detects interface circuit and warning driving circuit, be used to receive cabinet door that rack pick-proof detecting device sends by the detection signal of illegally opening or destroying, described central control unit receive cabinet door by the detection signal of illegally opening or destroying after, generate the warning drive signal and deliver to the warning driving circuit, described warning driving circuit connects alarm (for example various audible-visual annunciator), and the control alarm is reported to the police.Described central control unit receive cabinet door by the detection signal of illegally opening or destroying after, can also to described panoramic camera send instruction control its to rack and around take, with obtain that rack is illegally opened or destructive process in and later field condition.Described pick-proof detecting device can be installed on the cabinet door of rack usually, can be one, also can be two or more, to improve reliability.When the quantity of pick-proof rack is two or more, described rack pick-proof detects interface circuit also can adopt identical quantity, to connect each pick-proof detecting device respectively, for avoiding failing to report, when a detecting device is sent the detection signal of illegal unlatching or destruction here, just report to the police and take.
Described rack is provided with heat-insulation layer.
Described rack can be provided with Qianmen or Qianmen and back door, and described heat-insulation layer is arranged on each side plate of rack and described Qianmen or described front and back door body, and other panels of rack (for example top board) also can be provided with heat-insulation layer.Described heat-insulation layer generally can adopt the rock wool material, to have advantages such as insulation and fire prevention simultaneously.
Can be provided with heating arrangement, refrigerating plant and/or ventilation unit in the described rack, be used for regulating and interior environment (air) condition of machine rack, electronic equipment is under the adapt circumstance condition all the time.
Described ventilation unit can adopt convection fan, described convection fan generally can be positioned at the top of described rack, helps wind flowing in rack like this, can be provided with some ventilating openings on the described rack, so that temperature and humidity in the rack are regulated in the exchange of inner air and outer air.
Described heating arrangement can adopt electric boiling plate, and described electric boiling plate can be arranged on the bottom of side plate inboard, described rack both sides, helps the transmission of heat in rack like this, and helps reducing space hold.
Described electric boiling plate can adopt quartzy heating plate, and this heating plate volume is small and exquisite, to reduce space hold.Heating arrangement can be used for temperature in the winter time and cross when low heating in the rack of (for example≤-15 ℃ time), to regulate the temperature in the rack, guarantees the stable operation of system.This function is particularly suitable in northern China, especially cold district such as northeast, Inner Mongol.
Described refrigerating plant can adopt mini air conditioner or other forms of electric cold plate 4, to reduce space hold and convenient the installation.Described electric cold plate can be arranged on the top of side plate inboard, described rack both sides, helps the transmission of cold air like this.Refrigerating plant is used in summer temp when too high (for example 〉=45 ℃ time), and the temperature in the rack is regulated, and guarantees the stable operation of system.
Described convection fan, heating arrangement, refrigerating plant all can be provided with automaton, the processor of described automaton can adopt the electronic equipment in the rack, by being set, realizes by corresponding software described convection fan, heating arrangement, the control of refrigerating plant, can be provided with temperature sensor in the rack, can also be provided with humidity sensor again according to the control needs, these sensors and described convection fan, heating arrangement, the automaton of refrigerating plant connects, with the temperature in the rack, data such as humidity are delivered to described automaton, to carry out control corresponding.
Traffic lights of the present invention general reference traffic lights comprise red light, green light and amber light from color, from direction indication keep straight on lamp, left-hand bend lamp, right-hand bend lamp, reverse end for end lamp and do not have the lamp of arrow indication.
Claims (10)
1. automatic control type traffic light control system, comprise the central control unit that is used to control the traffic lights switch motion, it is characterized in that described central control unit is provided with parameter input media is set, force switch device and multistage ground induction coil pick-up unit, described multistage coil pick-up unit mainly constitutes by be distributed in underground a plurality of ground induction coil along the road bearing of trend, leave certain distance between each ground induction coil, the output line of each ground induction coil inserts described central control unit by corresponding interface circuits, send vehicle detection signal to described CPU (central processing unit), described CPU (central processing unit) is analyzed computing to described vehicle detection signal, judge the transport condition whether vehicle and vehicle are arranged on the road, and calculate the queue length of stationary vehicle on the road, the let pass clearance order of time and all directions of the vehicle of adjusting different directions automatically according to each road stationary vehicle queue length.
2. automatic control type traffic light control system as claimed in claim 1, it is characterized in that described ground induction coil distributes in pairs or three or three distributions in groups, make when on the ground vehicle queue of stopping to be arranged, one of them ground induction coil is positioned at certain under-vehicle just at least.
3. automatic control type traffic light control system as claimed in claim 1 is characterized in that passing through when described intelligent controller calculates the stationary vehicle queue length the following step:
(1), judges whether each ground induction coil top has automobile storage to exist according to the output of ground induction coil;
(2), judge the transport condition of ground induction coil upper vehicle according to of the output of adjacent each ground induction coil at adjacent each time point;
(3) calculate stationary vehicle queue length on this road, this distance stops the distance that the vehicle afterbody stops to the crossing for last;
(4) judge the minimum and maximum road of stationary vehicle queue length.
4. automatic control type traffic light control system as claimed in claim 2 is characterized in that the adjustment of described traffic lights controlled variable is carried out according to default program or pattern, adopts following principle:
(1) under the cross one another situation of road of road that increases stationary vehicle queue length maximum and minimizing stationary vehicle queue length minimum, increase the green light opening time of the road of stationary vehicle queue length maximum, reduce the green light opening time of the road of stationary vehicle queue length minimum;
(2) when the road of road that increases stationary vehicle queue length maximum and minimizing stationary vehicle queue length minimum is the same road of both sides, crossing, change the mode that two-way craspedodrome is let pass simultaneously, the mode that adopts unidirectional craspedodrome and turning (particularly turning left) to let pass simultaneously;
(3), change the clearance time of turning and keeping straight on under same road craspedodrome, left-hand bend and the visibly different situation of right-hand bend jam situation.
5. automatic control type traffic light control system as claimed in claim 3 is characterized in that the calculating of all directions road stationary vehicle queue length and comparison carry out on the point at the same time in the cycle of clearance, this time point is that this direction green light is firm when bright.
6. as claim 1,2,3,4 or 5 described automatic control type traffic light control systems, it is characterized in that described central control unit, parameter are provided with input media, force switch device and intelligent detection device and are installed in the rack.
7. automatic control type traffic light control system as claimed in claim 6, it is characterized in that described rack is provided with pick-proof and detects interface circuit and warning driving circuit, be used to receive cabinet door that rack pick-proof detecting device sends by the detection signal of illegally opening or destroying, described central control unit receive cabinet door by the detection signal of illegally opening or destroying after, generate the warning drive signal and deliver to the warning driving circuit, described warning driving circuit connects alarm, and the control alarm is reported to the police.
8. automatic control type traffic light control system as claimed in claim 7, it is characterized in that described central control unit receive cabinet door by the detection signal of illegally opening or destroying after, also to described panoramic camera send instruction control its to rack and around take, with obtain that rack is illegally opened or destructive process in and later field condition.
9. automatic control type traffic light control system as claimed in claim 8 is characterized in that described rack is provided with heat-insulation layer, and described heat-insulation layer is arranged on each side plate of rack and described Qianmen or described front and back door body.
10. automatic control type traffic light control system as claimed in claim 9, it is characterized in that being provided with in the described rack heating arrangement, refrigerating plant and/or ventilation unit, described ventilation unit adopts convection fan, described convection fan is positioned at the top of described rack, described rack is provided with some ventilating openings, and described heating arrangement electric boiling plate, described electric boiling plate are arranged on the bottom of side plate inboard, described rack both sides, and adopting quartzy heating plate, described refrigerating plant is with mini air conditioner or electric cold plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007103038458A CN101470965A (en) | 2007-12-26 | 2007-12-26 | Automatic control type traffic light control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007103038458A CN101470965A (en) | 2007-12-26 | 2007-12-26 | Automatic control type traffic light control system |
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| CN101470965A true CN101470965A (en) | 2009-07-01 |
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| CNA2007103038458A Pending CN101470965A (en) | 2007-12-26 | 2007-12-26 | Automatic control type traffic light control system |
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Cited By (26)
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| CN102034361A (en) * | 2011-01-13 | 2011-04-27 | 李志恒 | Intersection signal control system with prompting function and method thereof |
| CN102044159A (en) * | 2009-10-20 | 2011-05-04 | 西安费斯达自动化工程有限公司 | FPGA-based traffic signal control machine for intersection queue length image detection |
| CN102867422A (en) * | 2012-09-13 | 2013-01-09 | 哈尔滨工业大学 | Vehicle ad hoc network-based real-time single-point intersection signal lamp control method |
| CN103000033A (en) * | 2011-09-09 | 2013-03-27 | 蔡瑾玒 | Intelligent green time control method for urban intersections |
| CN103065477A (en) * | 2012-12-20 | 2013-04-24 | 北京交通大学 | Full red signal setup system with dynamic time length adjusting function and method |
| CN103280113A (en) * | 2013-05-08 | 2013-09-04 | 长安大学 | Self-adaptive intersection signal control method |
| CN104008656A (en) * | 2014-06-16 | 2014-08-27 | 上海萃智工业技术有限公司 | Intelligent traffic light system |
| CN104332059A (en) * | 2014-10-14 | 2015-02-04 | 苏州合欣美电子科技有限公司 | Method for controlling traffic signal lamp |
| CN104637323A (en) * | 2015-03-02 | 2015-05-20 | 王刚 | Waiting time self-regulating signal lamp |
| CN104732778A (en) * | 2015-03-04 | 2015-06-24 | 上海市政工程设计研究总院（集团）有限公司 | Signal control system for solving intersection congestion and control method thereof |
| CN105023444A (en) * | 2015-07-27 | 2015-11-04 | 江苏大学 | Intelligent traffic light system based on piezoelectric ceramics and control method |
| CN105070071A (en) * | 2015-08-27 | 2015-11-18 | 烟台大学 | Traffic signal lamp control system and method |
| CN105160893A (en) * | 2015-07-09 | 2015-12-16 | 常州大学 | Method for adjusting signal lamp time interval according to vehicle flow |
| CN105389997A (en) * | 2014-08-26 | 2016-03-09 | 株式会社京三制作所 | Traffic signal control device |
| CN106251653A (en) * | 2016-08-29 | 2016-12-21 | 王若芊 | A kind of Intelligent traffic light control method and system |
| CN107862876A (en) * | 2017-03-27 | 2018-03-30 | 平安科技（深圳）有限公司 | Traffic lamp control method and device |
| CN108389408A (en) * | 2018-04-28 | 2018-08-10 | 山东交通学院 | The areas Dai Hang vehicle guiding auxiliary signal control system based on ground lamp plate and method |
| CN109272757A (en) * | 2018-08-17 | 2019-01-25 | 南京市公安局交通管理局 | A method of the equilibrium calculation phase long green light time with closed loop feedback |
| CN109509369A (en) * | 2018-12-23 | 2019-03-22 | 合肥工业大学 | Intelligent car position monitoring method and its monitoring system, city integrated intelligent transportation system |
| CN109584580A (en) * | 2018-12-23 | 2019-04-05 | 合肥工业大学 | A kind of city intelligent traffic light control method and intelligent control system of traffic light |
| CN110136454A (en) * | 2019-06-17 | 2019-08-16 | 公安部交通管理科学研究所 | The green wave whistle control system of urban traffic trunk line dynamic and method based on real-time traffic flow data |
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| CN110491138A (en) * | 2019-07-30 | 2019-11-22 | 广东天机工业智能***有限公司 | Traffic light control system and its control method |
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- 2007-12-26 CN CNA2007103038458A patent/CN101470965A/en active Pending
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| CN102044159A (en) * | 2009-10-20 | 2011-05-04 | 西安费斯达自动化工程有限公司 | FPGA-based traffic signal control machine for intersection queue length image detection |
| CN102034361A (en) * | 2011-01-13 | 2011-04-27 | 李志恒 | Intersection signal control system with prompting function and method thereof |
| CN102034361B (en) * | 2011-01-13 | 2013-11-06 | 李志恒 | Intersection signal control system with prompting function and method thereof |
| CN103000033A (en) * | 2011-09-09 | 2013-03-27 | 蔡瑾玒 | Intelligent green time control method for urban intersections |
| CN102867422A (en) * | 2012-09-13 | 2013-01-09 | 哈尔滨工业大学 | Vehicle ad hoc network-based real-time single-point intersection signal lamp control method |
| CN102867422B (en) * | 2012-09-13 | 2014-08-13 | 哈尔滨工业大学 | Vehicle ad hoc network-based real-time single-point intersection signal lamp control method |
| CN103065477A (en) * | 2012-12-20 | 2013-04-24 | 北京交通大学 | Full red signal setup system with dynamic time length adjusting function and method |
| CN103280113A (en) * | 2013-05-08 | 2013-09-04 | 长安大学 | Self-adaptive intersection signal control method |
| CN104008656A (en) * | 2014-06-16 | 2014-08-27 | 上海萃智工业技术有限公司 | Intelligent traffic light system |
| CN105389997A (en) * | 2014-08-26 | 2016-03-09 | 株式会社京三制作所 | Traffic signal control device |
| CN105389997B (en) * | 2014-08-26 | 2019-09-10 | 株式会社京三制作所 | Traffic-control unit |
| CN104332059A (en) * | 2014-10-14 | 2015-02-04 | 苏州合欣美电子科技有限公司 | Method for controlling traffic signal lamp |
| CN104637323A (en) * | 2015-03-02 | 2015-05-20 | 王刚 | Waiting time self-regulating signal lamp |
| CN104732778A (en) * | 2015-03-04 | 2015-06-24 | 上海市政工程设计研究总院（集团）有限公司 | Signal control system for solving intersection congestion and control method thereof |
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| CN105023444A (en) * | 2015-07-27 | 2015-11-04 | 江苏大学 | Intelligent traffic light system based on piezoelectric ceramics and control method |
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| CN106251653B (en) * | 2016-08-29 | 2018-11-27 | 王若芊 | A kind of Intelligent traffic light control method and system |
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| CN107862876A (en) * | 2017-03-27 | 2018-03-30 | 平安科技（深圳）有限公司 | Traffic lamp control method and device |
| CN108389408A (en) * | 2018-04-28 | 2018-08-10 | 山东交通学院 | The areas Dai Hang vehicle guiding auxiliary signal control system based on ground lamp plate and method |
| CN108389408B (en) * | 2018-04-28 | 2020-07-03 | 山东交通学院 | Auxiliary signal control system and method for guiding vehicles in waiting area based on ground lamp panel |
| CN109272757B (en) * | 2018-08-17 | 2021-10-19 | 南京市公安局交通管理局 | Method for balanced calculation of phase green light time length with closed-loop feedback |
| CN109272757A (en) * | 2018-08-17 | 2019-01-25 | 南京市公安局交通管理局 | A method of the equilibrium calculation phase long green light time with closed loop feedback |
| CN109509369A (en) * | 2018-12-23 | 2019-03-22 | 合肥工业大学 | Intelligent car position monitoring method and its monitoring system, city integrated intelligent transportation system |
| CN109584580A (en) * | 2018-12-23 | 2019-04-05 | 合肥工业大学 | A kind of city intelligent traffic light control method and intelligent control system of traffic light |
| CN109584580B (en) * | 2018-12-23 | 2020-09-04 | 合肥工业大学 | Intelligent control method and intelligent control system for urban traffic lights |
| CN110136454B (en) * | 2019-06-17 | 2021-06-29 | 公安部交通管理科学研究所 | Urban traffic trunk line dynamic green wave signal control system and method based on real-time traffic flow data |
| CN110136454A (en) * | 2019-06-17 | 2019-08-16 | 公安部交通管理科学研究所 | The green wave whistle control system of urban traffic trunk line dynamic and method based on real-time traffic flow data |
| CN110491138A (en) * | 2019-07-30 | 2019-11-22 | 广东天机工业智能***有限公司 | Traffic light control system and its control method |
| CN110444018A (en) * | 2019-07-30 | 2019-11-12 | 腾讯科技（深圳）有限公司 | The control method and device of artificial urban system, storage medium and electronic device |
| CN111951576A (en) * | 2020-08-17 | 2020-11-17 | 国为(南京)软件科技有限公司 | Traffic light control system based on vehicle identification and method thereof |
| CN112133119A (en) * | 2020-09-25 | 2020-12-25 | 安徽达尔智能控制***股份有限公司 | Intelligent vehicle contact system based on V2X car networking technology |
| CN114822050A (en) * | 2022-03-30 | 2022-07-29 | 阿里巴巴（中国）有限公司 | Road condition identification method, electronic equipment and computer program product |
| CN114822050B (en) * | 2022-03-30 | 2023-07-21 | 阿里巴巴（中国）有限公司 | Road condition identification method, electronic equipment and computer program product |
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Open date: 20090701 |