CN101727752A - Method for controlling traffic signal lamps of crossroad - Google Patents
Method for controlling traffic signal lamps of crossroad Download PDFInfo
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- CN101727752A CN101727752A CN200810172055A CN200810172055A CN101727752A CN 101727752 A CN101727752 A CN 101727752A CN 200810172055 A CN200810172055 A CN 200810172055A CN 200810172055 A CN200810172055 A CN 200810172055A CN 101727752 A CN101727752 A CN 101727752A
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Abstract
The invention discloses a method for controlling traffic signal lamps of a crossroad. The method comprises the steps of: aiming at the crossroad to arrange a plurality of groups of monitoring devices with a wire and/or wireless transmission function for monitoring vehicles on roads in various directions in certain range area of the crossroad; then transmitting vehicle data obtained by the monitoring devices to a control unit such as a computer device for processing, for example, calculating difference values and proportion relation among vehicle data weights of the roads in various directions or a weighted value of special vehicles and the like as reference values; and then according to the reference values, transmitting a signal to a control box of the traffic signal lamp by the control unit to operate and control to change a traffic signal lamp mode to according to the reference values, automatically or relatively increase and decrease lighting seconds of green lights of the roads in two different directions or quickly open priority pass of the special vehicles and the like so as to ensure that the traffic of the crossroad can efficiently perform automatic monitoring management during unmanned control and further achieve the effects on energy conservation, environmental protection, time conservation and emergency pass.
Description
Technical field
The present invention relates to a kind of control and management method of signal lamp, particularly a kind of method for controlling traffic signal lamps of crossroad.
Background technology
The traffic of present each department, especially nearly all be provided with traffic lights on the intersection in urban district with controlled traffic, with general common right-angled intersection is the example explanation, it comprises two crossing different directions roads such as East and West direction road and north-south road, the all directions road comprises two-way road again such as the East and West direction road comprises east orientation road and western to road, and all directions road can comprise multilane again as two drawing lines or three drawing lines etc.; And the two-way traffic signal lamp that traffic lights comprise two different directions roads such as East and West direction and north-south road is at least established in general right-angled intersection place, and utilize described traffic lights each other period difference take turns mutual regulatory model, gave a green light 40 seconds and the north-south road sends out a warning 40 seconds to alleviate the wagon flow on the East and West direction road as the East and West direction road, this moment, the vehicle of north-south road promptly stopped; Switch to again afterwards that the East and West direction road sent out a warning 40 seconds and the north-south road gives a green light 40 seconds to alleviate the wagon flow on the road of north-south, this moment, the vehicle of East and West direction road promptly stopped motionless; Again with present employed traffic lights, except that basic red, yellow, green light, also have other multiple variations designs, as increasing the demonstration effect that becomes residue second number before the lamp at red, green light, debate for the driver and to know or prepare in advance, or increase a left side/right-hand rotation pilot lamp etc. in addition.
The control and management method of existing intersection traffic lights, generally be as the vehicle flowrate of two different directions roads and research program in advance according to the traffic of described intersection, and utilize the control box that traffic lights set up (in establish electronic circuit and gauge tap or control knob) to set the set keyholed back plate pattern of action in turn, and described set keyholed back plate pattern can be done a second number difference and be set according to period on and off duty and non-period on and off duty or major trunk roads or non-major trunk roads basically, for example the period on and off duty (as 7 thirty to 9 of morning and at 5 o'clock in afternoon to 7 thirty) the second number that gives a green light of major trunk roads can set more of a specified duration than non-major trunk roads, with the vehicle flowrate of the described major trunk roads of effective alleviation, the non-period on and off duty (as the time beyond 7 thirty to 9 of morning and at 5 o'clock in afternoon to 7 thirty) then the second number that gives a green light of major trunk roads can set with non-major trunk roads and equate; And at ordinary times, described intersection traffic lights promptly carry out automatic keyholed back plate operation according to set keyholed back plate pattern; When taking place, special status causes when blocking as traffic control or major trunk roads, then must come to the spot and open control box carrying out artificial keyholed back plate pattern by traffic keyholed back plate personnel such as traffic-police, as control prolong as described in major trunk roads give a green light second number with the vehicle flowrate of major trunk roads as described in alleviating earlier.
Yet, contain the numerous intersection of lid in one network of communication lines, and changing all may appear in the traffic of each intersection at any time, especially occasionally also special vehicle such as fire truck can take place, the preferential quick special status of palpus such as ambulance by the intersection, the general keyholed back plate pattern of therefore existing intersection traffic lights also can't satisfy the diversified demand of intersection traffic keyholed back plate, and the traffic-police of limited establishment also can not can both cooperate traffic at any time and in time comes to the spot and open control box with artificial keyholed back plate traffic lights, can only the emphasis formula select the more important intersection of part in the urban district at present, and at the period on and off duty controlled traffic of dispatching officers especially, the keyholed back plate pattern of just present intersection traffic lights also can't reach according to specific time and site and cooperate the best keyholed back plate effect of intersection traffic at that time at any time, and for example the traffic of following several intersections takes place often:
＜1 〉, when the vehicle number (vehicle flowrate) of two different directions roads when having big difference, 50 (in the waits) are arranged and the vehicle number of other direction road has only 5 (in travelling) as the vehicle number of a direction road, differ 45 between the two, but traffic lights still keep original keyholed back plate pattern, have only 5 traffic lights still to keep green light several 40 seconds of second (promptly carrying out) just can become lamp afterwards as vehicle number according to the keyholed back plate pattern of having set, it not only can allow 5 cars current totally, and also can remaining tens of seconds empty light yellow green lights and not have car current; Can't shorten its green light number second automatically with rapid change lamp (promptly become amber light rapidly and become red light again) in response to traffic at that time (differing 45 many as vehicle number) according to existing its green light number second of general keyholed back plate pattern, it is current for 50 cars of other direction to make the other direction traffic lights can synchronously become green light rapidly: thus cause in fact at least tens of seconds time, gasoline such as 50 car skies waste and the waste discharge gas phase to increase.In fact, when above-mentioned traffic takes place when, best keyholed back plate pattern is can promptly shorten green light number second of the traffic lights that have only 5 cars automatically with quick change lamp (promptly become amber light rapidly and become red light again), and it is current for 50 cars of described direction to make the traffic lights of other direction can synchronously become green light rapidly.
＜2 〉, when the vehicle number (vehicle flowrate) of two different directions roads when being more or less the same, then the vehicle number (vehicle flowrate) of possibility two different directions roads is all a lot, 50 (in the waits) are arranged and the vehicle number of other direction road has 45 (in travelling) as the vehicle number of a direction road, phase difference between the two is 5, and the ratio value 50/45=1.11 between the two, level off to 1; But also wherein the vehicle number of a direction road has only 1～5 (in the wait), and the other direction road does not have vehicle, and this situation takes place in this regular meeting when midnight; Phase difference between the two also has only 1～5 also also not quite at this moment, and ratio value 1～5/0=∞ or 0/1～5=0 between the two, level off to infinity or equal zero (promptly away from 1), but traffic lights still keep original keyholed back plate pattern (promptly carrying out according to the keyholed back plate pattern of having set), though the person does not still keep green light just can become lamp after several 40 seconds of second as there being the vehicle pass-through; Just can't shorten its second number that gives a green light automatically in response to traffic at that time (not having car) and become red light again, make the other direction traffic lights can synchronously become green light rapidly for vehicle pass-through to become amber light rapidly as only differing 1～5 and a direction according to existing general keyholed back plate pattern; So cause tens of seconds time such as 1～5 car sky, gasoline waste and waste discharge gas phase in fact at least to increasing.In fact, when above-mentioned traffic takes place when, be that the little but ratio value of phase difference between the two levels off to infinity (or very little and convergence zero), just away from 1, best keyholed back plate pattern is can promptly shorten green light number second of the traffic lights that do not have vehicle automatically with quick change lamp (promptly become amber light rapidly and become red light again), makes the traffic lights of other direction can synchronously become the vehicle pass-through of green light for described direction rapidly.
＜3 〉, especially, special vehicle such as fire truck are arranged in the vehicle of two different directions roads, when ambulances etc. occur, the present traffic lights that use, except just there being the traffic control personnel to do the people at the scene for controlling, generally all can't control and change the traffic lights pattern, with rapid open special vehicle priority pass, and this front vehicles driver of taking place often on the road does not know that it abdicates the track to the current fast special vehicle of the existing desire in rear in wait, especially when running into red light again, described direction road more do not know how to give way, cause the very dangerous of the current or intersection of the delay that often causes special vehicle, the traffic that makes the intersection can't automatically-monitored efficiently management when unmanned keyholed back plate, more can't reach urgent current high-level efficiency traffic keyholed back plate effect.
As from the foregoing, the traffic lights of intersection use at present also can't be obtained the vehicle data of all directions road by monitoring, as phase difference, proportionate relationship between all directions road vehicle or special vehicle existence etc. is arranged, to control the bright lamp pattern that changes traffic lights automatically as the bright lamp of green light number second (transit time) of increase and decrease two different directions roads or open special vehicle priority pass etc. relatively rapidly automatically; And when the traffic of intersection efficiently during keyholed back plate, the other problems of can deriving relatively, during as traffic jam, gasoline is wasted relatively, and the waste discharge gas phase is to increasing, and loses time, and do not meet the present practiced saving energy and environmental requirement.The present invention provides a kind of intelligent automatically-monitored method at the traffic of intersection and traffic lights thereof, with solve existing intersection traffic lights the problem and the shortcoming that can't overcome.
Summary of the invention
Fundamental purpose of the present invention is the defective that overcomes above-mentioned prior art, a kind of method for controlling traffic signal lamps of crossroad is provided, make traffic lights can intersection all directions road on the number number of dealing vehicle and/or weighted value etc. be used as reference value, and according to the transit time of described these reference value auto-control traffic lights patterns as the automatic all directions of increase and decrease relatively, so that the traffic lights of intersection can automatically-monitored efficiently management when unmanned keyholed back plate.
In order to achieve the above object, the invention provides a kind of method for controlling traffic signal lamps of crossroad, it is at an intersection supervising device that array has wired and/or wireless transmission function to be set, in order to monitoring all directions road car in the certain limit zone, described intersection, as detecting and identification all directions at any time wait for or travel in vehicle number or data such as the speed of a motor vehicle and form the vehicle data weights; Again the above-mentioned vehicle data of each supervising device gained is transferred to a control module such as computer apparatus handling, as the phase difference or the proportionate relationship of the vehicle data weights that calculate all directions road, to be used as reference value; Again according to described these reference values, the control box that is outputed signal to traffic lights by control module changes the traffic lights pattern to control, as switching to a urgent keyholed back plate pattern rapidly or relative automatically green light number second (being transit time) that increases and decreases two different directions roads according to reference value, so that the traffic of intersection can automatically-monitored efficiently management when unmanned keyholed back plate, further reach and save the energy, environmental protection, save time and promptly current effect.
In order to achieve the above object, the present invention also provides a kind of method for controlling traffic signal lamps of crossroad, wherein said supervising device further can by with vehicle in adorn the interaction function of Global Positioning System (GPS) (GPS) and/or wireless transceiver system, to obtain the vehicle data of intersection vehicle at that time, and simultaneously above-mentioned vehicle data is transferred to control module and then incorporates processing into, obtain the efficient of vehicle data to promote described supervising device, to reach high-level efficiency traffic keyholed back plate effect.
In order to achieve the above object, the present invention also provides a kind of method for controlling traffic signal lamps of crossroad, wherein said supervising device further can be at the special vehicle such as the fire truck that wherein must preferentially pass through the intersection fast, ambulance etc., the special weighted value of setting, so that control module is when sensing the special vehicle weighted value, promptly open special vehicle priority pass etc. rapidly, so that the traffic of intersection can automatically-monitored efficiently management when unmanned keyholed back plate, and can simultaneously above-mentioned vehicle data be transferred to control module and then incorporate processing into, to reach urgent current high-level efficiency traffic keyholed back plate effect.
In order to achieve the above object, the present invention also provides a kind of method for controlling traffic signal lamps of crossroad, it further can utilize special vehicle such as fire truck, the wireless transceiver system of dress is to output signal to the control box of supervising device or control module or traffic lights in the ambulances etc., change the traffic lights pattern to control, with rapid open special vehicle priority pass, and can on traffic lights, establish special cresset shows special vehicle palpus priority pass with further bright lamp special cresset in addition,, other vehicle drivers abdicate the track so that learning according to this, the traffic that makes the intersection can automatically-monitored efficiently management when unmanned keyholed back plate, and reaches urgent current high-level efficiency traffic keyholed back plate effect.
In order to achieve the above object, the present invention also provides a kind of intersection traffic control and management method, wherein said control and management method further can be used for comprising in the regional formula traffic signal lamp system of several intersections, the traffic lights of several relevant intersections in one area can be used with wired or wireless mode line, with the traffic jam situations in the described area of effective alleviation, make in the areal several relevant intersection traffic lights reach automatically-monitored effect.
Beneficial effect of the present invention is: make traffic lights can intersection all directions road on the number number of dealing vehicle and/or weighted value etc. be used as reference value, and according to the transit time of described these reference value auto-control traffic lights patterns as the automatic all directions of increase and decrease relatively, so that the traffic lights of intersection can automatically-monitored efficiently management when unmanned keyholed back plate, simultaneously, when having avoided traffic jam, gasoline is wasted relatively, the waste discharge gas phase is to increase, and the problem of losing time.
Description of drawings
Fig. 1 is the embodiment synoptic diagram that supervising device of the present invention is arranged in the intersection;
Fig. 2 is another embodiment synoptic diagram that supervising device of the present invention is arranged in the intersection;
Fig. 3 is the embodiment synoptic diagram that method for supervising of the present invention is applied to comprise the regional formula traffic signal lamp system of several intersections.
Description of reference numerals: 1-intersection; The 10-road; 2 traffic lights; The 20-control box; The 3-supervising device; The 4-control module; 5-area formula traffic signal lamp system.
Embodiment
Below in conjunction with accompanying drawing, be described in more detail with other technical characterictic and advantage the present invention is above-mentioned.
As shown in Figure 1, 2, the present invention is a kind of method for controlling traffic signal lamps of crossroad, it is to provide a kind of intelligent robotization control and management method at the traffic lights 2 of an intersection 1, make described traffic lights 2 at least can be with the number number of dealing vehicle on all directions road of intersection 1 the current state of bright lamp of auto-control traffic lights 2, reach the purpose of smooth traffic with the traffic jam situations of the described intersection of effective alleviation, and reach the automatically-monitored effect of traffic lights when unmanned keyholed back plate of intersection.
Control and management method of the present invention is that the supervising device 3 that utilizes array to have wired and/or wireless transmission function is arranged at appropriate position in the certain limit of intersection 1 respectively and can be located at the other higher position of road as shown in Figure 1 or be arranged on all directions road near the place, higher position, roadside of intersection 1 as shown in Figure 2, described supervising device 3 is provided with image and reads camera lens to carry out the image read functions, and can have the image identification function, can be in order to the car on all directions road 10 in the certain limit zone of monitoring intersection 1 to obtain the associated vehicle data simultaneously, described these vehicle datas and can convert to simultaneously vehicle data weights (numerical data) for transfer to a control module 4 with calculation function as computer apparatus to handle, as Auto-Sensing at any time or with the vehicle data in the certain limit zone on interval time such as per 5 a seconds self-timing detecting of setting and the identification all directions road, described vehicle data comprises: wait for vehicle number or travel the middle vehicle number and the speed of a motor vehicle thereof etc., and convert vehicle data weights (numerical data) respectively to, handle and computing for control module 4.
Utilize one to have the control module 4 of calculation function again as computer apparatus, in order to the vehicle data weights of handling and computing is imported by each supervising device 3, as calculate weighted value of phase difference, proportionate relationship or special vehicle between the vehicle data weights of all directions road etc., to be used as reference value; Again according to described these reference values, the control box that is outputed signal to traffic lights 2 by control module 4 changes the traffic lights pattern to control, to increase and decrease the green light lighting time (transit time) of two different directions roads automatically relatively, automatically increase and decrease green light number second (transit time) of two different directions roads relatively as the foundation reference value, or switch to a urgent keyholed back plate pattern, or open special vehicle priority pass etc. rapidly.
At above-mentioned according to reference value to control the mode that changes the traffic lights pattern, the green light lighting time (transit time) with relative increase and decrease two different directions roads, further specify as follows:
Wherein a feasible mode is: can set a limit value according to phase difference between the vehicle data weights of all directions road or proportionate relationship; Phase difference (proportionate relationship between vehicle speed data or the weights wouldn't be incorporated calculating into) with vehicle number (being used as the vehicle data weights) on the two different directions roads 10, as the wait vehicle number on the direction road 10 is 0 (the unimpeded nothing of expression wagon flow is waited for vehicle), and the wait vehicle number on the other direction road 10 is 20 (the expression wagon flow is blocked existing 20 wait vehicles, and then described phase difference is 20-0=20; Described again control module 4 can be set a limit value earlier, is the example explanation at this with fixing setting one difference limit value, as peak hours/period (as the period on and off duty) with as described in the difference limit value be made as 20 () or more than, and non-peak hours/period (as the non-period on and off duty) can with as described in the limit value of difference be made as 15 () or below, and whether the phase difference that control module 4 can be handled the wait vehicle number of learning all directions road 10 surpasses described difference limit value, whether begins to control the bright lamp keyholed back plate pattern that changes traffic lights 2 with decision; Described again control module 4 is to be connected with the control box 20 of the traffic lights 2 of intersection 1, an exportable enabling signal is to described control box 20, start described control box 20 to control the bright lamp keyholed back plate pattern that changes traffic lights 2 with control, as switching to a urgent keyholed back plate pattern rapidly, or increase and decrease green light number second (being transit time) of two different directions roads relatively according to the proportionate relationship between the weights, as increase green light number second of waiting for the more side of vehicle number, promptly shorten green light number second of waiting for the less side of vehicle number relatively.
Above-mentioned again limit value that sets such as difference limit value, be not restricted to fix according to the phase difference of vehicle data rights value (as vehicle number) on the two different directions roads 10 fully set a limit value, the limit value of described setting also can change the limit value that it sets according to the proportionate relationship between the vehicle data rights value (as vehicle number) on the two different directions roads 10 simultaneously, the limit value that just sets not is a fixed value, described limit value can change at any time along with the difference of traffic, i.e. the phase difference of the vehicle data weights that detected along with two different directions roads and proportionate relationship and change at any time, form a kind of situation of floating type setting limit value, and floating type setting limit value can be included different traffics in the needs of consideration with the intelligent keyholed back plate pattern that satisfies traffic lights 2, for example: the vehicle data weights (as vehicle number) of two different directions roads are more or less the same but different traffics are arranged, comprise vehicle number as a direction road and have 60 and the other direction road has 55, differ 5 (or the expression weights differ 5) also not quite, and for example the vehicle number of a direction road has 5 and the other direction road does not have vehicle, differing also is that 5 (or the expression weights differ 5) are also little, differs 5 (or the expression weights differ 5) its traffics differences but be both; Therefore if single serve as to set unique factor of limit value and only with the keyholed back plate pattern of change traffic lights 2 with the phase difference of vehicle data weights (as vehicle number), probably thorough inadequately and be not enough to satisfy the needs of the various keyholed back plate patterns of traffic lights 2, so the present invention just further proposes a kind of pattern of floating type setting limit value, include phase difference and proportionate relationship between the vehicle data weights in consideration simultaneously, so that the keyholed back plate pattern of traffic lights 2 is more thorough, as can simultaneously phase difference and proportionate relationship between the vehicle data weights being used as reference value, and according to the green light second number (be transit time) of described reference value with relative increase and decrease two different directions roads.
When then using, control module 4 can be according to described these reference values, as the phase difference between the vehicle data weights of all directions road, the weighted value of proportionate relationship or special vehicle etc. can be used as reference value, the control box that is outputed signal to traffic lights by control module 4 changes the traffic lights pattern to control, with the green light lighting time (transit time) of relative increase and decrease two different directions roads, as: the phase difference that detects the wait vehicle number of learning intersection two different directions roads 10 when control module 4 as described in limit value when following, then control module 4 is not exported enabling signal to described control box 20, and this moment, the traffic lights 2 of described intersection 1 still carried out according to the original one usual state keyholed back plate pattern of having set; And learn that described phase difference has surpassed or when equaling described limit value when control module 4 detects, the expression wherein wait vehicle number of the direction person that exceeded the other direction is a lot of and cause obstruction, then control module 4 outputs one enabling signal is to the control box 20 of traffic lights 2, control the keyholed back plate pattern that changes traffic lights 2 with control box 20, as: switch to a urgent keyholed back plate pattern rapidly, or according to the phase difference between the weights and proportionate relationship and increase and decrease green light number second (being transit time) of two different directions roads relatively, as increase green light number second of waiting for the more side of vehicle number, promptly shorten green light number second of waiting for the less side of vehicle number relatively.Make it automatically switch into other state keyholed back plate patterns by usual state keyholed back plate pattern, so that the bright lamp of the traffic lights of two different directions number second (transit time) increase and decrease relatively, as original usual state keyholed back plate pattern is to make red, the green light of two different directions can take turns bright lamp 40 seconds and finish mutual bright lamp circulation in one 80 seconds, and promptly red, the green light of each direction take turns 40 seconds (wherein can add amber light number second in addition) of bright lamp; And other state keyholed back plate patterns comprise: make green light (transit time) second number of a direction road of waiting for that wherein vehicle number is more relatively increase to 70 seconds above 40 seconds as green light number second, its red light number second then is less than 40 seconds relatively as shortens to 20 seconds, and finish bright lamp circulation in one 90 seconds, green light (transit time) second number of promptly waiting for the direction road that vehicle number is more relatively in each bright lamp circulation was 70 seconds and red light number second 20 seconds; Then pass through above-mentioned keyholed back plate pattern once or the change of once above keyholed back plate pattern, should effectively alleviate the traffic jam situations of described intersection 1, the automatically-monitored effect when reaching unmanned keyholed back plate.
In brief, the present invention changes the traffic lights pattern according to reference value to control, it is green light lighting time (transit time) in order to relative increase and decrease two different directions roads, just, can increase the green light lighting time of the bigger road of vehicle data weights relatively when the vehicle data weights of a direction road during greater than the vehicle data weights of other direction road; And the recruitment of green light lighting time of the road that described vehicle data weights are bigger can the proportional increase according to the size of phase difference between the vehicle data weights of all directions road; The phase difference of working as between the vehicle data weights of all directions road is not equal to 0 again, and the proportionate relationship between the vehicle data weights is 0 or when infinitely great, this expression wherein vehicle data weights of a direction road is 0 (not having vehicle), can change traffic lights immediately this moment, makes the traffic lights of the road with vehicle data weights convert the bright lamp pattern of green light immediately to.
Again at the emergency circumstance keyholed back plate pattern of the control box of traffic lights 2 predeterminable at least one (promptly one or more than), as first emergency circumstance keyholed back plate pattern or second emergency circumstance keyholed back plate pattern etc., and each emergency circumstance keyholed back plate pattern is green light lighting time (transit time) at two different directions roads to increase and decrease different time quantums relatively, green as first emergency circumstance keyholed back plate pattern, red light ratio of relative lighting time is set at 50 seconds: 30 seconds, and second emergency circumstance keyholed back plate pattern is green, red light ratio of relative lighting time is set at 60 seconds: 20 seconds, to form one or above different emergency circumstance keyholed back plate pattern; In other words, the present invention changes the traffic lights pattern according to reference value to control, it is the time quantum of the green light lighting time (transit time) of increase and decrease two different directions roads relatively, can be does not have section and changes, and the recruitment of green light lighting time of the road that promptly described vehicle data weights are bigger can the proportional increase according to the size of phase difference between the vehicle data weights of all directions road; Also the section of having can be changes, be that the recruitment of green light lighting time of the bigger road of described vehicle data weights can be selected the emergency circumstance keyholed back plate pattern in the emergency circumstance keyholed back plate pattern of at least one (promptly or more than) automatically according to the size of phase difference, green, the red light relative lighting time that makes that the recruitment of green light lighting time of the bigger road of described vehicle data weights set according to selected emergency circumstance keyholed back plate pattern is carried out keyholed back plate.
In method for controlling traffic signal lamps of crossroad of the present invention, by supervising device 3 obtained associated vehicle data, it can convert vehicle data weights (numerical data) to by supervising device 3, or transfer to a control module 4 with calculation function earlier and convert vehicle data weights (numerical data) to by control module 4 again as computer apparatus and handle again, just can set up data converter on their own according to the systemic-function of employed supervising device 3 or control module 4 by supervising device 3 obtained associated vehicle data; And utilize present electronic technology to reach owing to convert image data (simulating signal) to vehicle data weights (numerical data), so do not repeat them here.
With following all embodiment, user mode of the present invention is described one by one:
＜the first embodiment 〉
The method for controlling traffic signal lamps of crossroad of present embodiment comprises following steps:
With a scope zone of an intersection all directions road as the monitoring range district;
Utilize array supervising device 3 with automatically wait in the monitoring range district of detecting and the described intersection of identification 1 all directions road 10 at any time or travel in vehicle number or vehicle data such as the speed of a motor vehicle, and form the vehicle data weights, and the vehicle data weights of gained are transported to a control module 4;
Utilize described control module 4 to handle vehicle data weights, and further detect and calculating obtains relation between the vehicle data weights of all directions road, with as with reference to being worth by all directions road 10 of each supervising device 3 input;
Again according to aforementioned described reference value, by control module 4 output adjustment signals to the control box 20 of traffic lights 2 to control the bright lamp pattern that changes traffic lights 2, with the green light lighting time of the variant direction road of relative increase and decrease.
Wherein, can increase the green light lighting time of the bigger road of described vehicle data weights relatively when the vehicle data weights of a direction road during greater than the vehicle data weights of other direction road.
Wherein, the mode that relatively increases green light lighting time of the bigger road of described vehicle data weights can comprise multiple mode, be lower than a difference limit value when following as: the phase difference that detects the vehicle data weights of intersection 1 two different directions roads 10 when control module 4, control module 4 is not exported the control box 20 of enabling signal to the traffic lights 2 of crossroad mouth 1, and this moment, described traffic lights 2 still continued to carry out bright lamp circulation control according to the usual state keyholed back plate pattern of former setting; The phase difference that detects the vehicle data weights of intersection 1 two different directions roads 10 when control module 4 has surpassed or when equaling a difference limit value, control module 4 is promptly exported the control box 20 of an enabling signal to traffic lights 2, automatically be converted to another state keyholed back plate pattern to control traffic lights 2, transit time with relative increase and decrease two different directions roads, as increase green light number second of waiting for the more side of vehicle number, promptly shorten green light number second of waiting for the less side of vehicle number relatively; The phase difference that detects the vehicle data weights of intersection 1 two different directions roads 10 when control module 4 is reduced to a difference limit value again when following, control module 4 is no longer exported the control box 20 of enabling signal to traffic lights 2, and described traffic lights 2 promptly automatically return to the usual state keyholed back plate pattern of former setting.
Present embodiment is to utilize supervising device 3 and control module 4, and according to reference value such as weights magnitude relationship, with the green light lighting time (being transit time) of the variant direction road 10 of relative increase and decrease, so can be considered the intelligent keyholed back plate pattern of a kind of stepless.
Detecting and calculating obtains in the step of the relation between the vehicle data weights of all directions road in the present embodiment, relation between the described vehicle data weights further can comprise the phase difference between the vehicle data weights of all directions road, and the recruitment of green light lighting time of the road that wherein said vehicle data weights are bigger can the proportional increase according to the size of phase difference between the described vehicle data weights.
Detecting and calculating obtains in the step of the relation between the vehicle data weights of all directions road in the present embodiment, relation between the described vehicle data weights further comprises the proportionate relationship between the vehicle data weights of all directions road, wherein when the ratio between the vehicle data weights of all directions road be 0 or when infinitely great, the traffic lights with road of vehicle data weights can be converted to immediately the bright lamp pattern of green light.
Again in the present embodiment, further can in the control box 20 of traffic lights 2, preset the emergency circumstance keyholed back plate pattern of at least one traffic lights, and each emergency circumstance keyholed back plate pattern is the green light lighting time at variant direction road to increase and decrease a different time quantum relatively, make control module export the control box of adjustment signal according to reference value to traffic lights, in order to select wherein an emergency circumstance keyholed back plate pattern to control the bright lamp pattern that changes traffic lights 2, with the green light lighting time of the variant direction road 10 of relative increase and decrease; Just make the relative increase and decrease amount of green light lighting time be divided into multistage emergency circumstance keyholed back plate pattern in advance, so that present embodiment by the intelligent keyholed back plate pattern of a kind of stepless, selects to convert to a kind of intelligent keyholed back plate pattern of segmentation that has.
Again at the phase difference between the vehicle data weights of all directions road 10, can preestablish a difference limit value, make when the phase difference of the vehicle data weights of the control module 4 all directions road that detects during more than or equal to described difference limit value, control module 4 exportable adjustment signals to the control box of traffic lights to control the bright lamp pattern that changes traffic lights 2, with the green light lighting time of the variant direction road of relative increase and decrease; Just, begin to control green light lighting time, just further select a kind of intelligent keyholed back plate pattern of stepless that the difference limit value just can carry out keyholed back plate that surpasses with the variant direction road of relative increase and decrease when phase difference during more than or equal to described difference limit value.
The control and management method of present embodiment further can be used for comprising in the regional formula traffic signal lamp system 5 of several intersections as shown in Figure 3 again, and the traffic lights 3 of several relevant intersections in the area can be used with wired or wireless mode line.
Again in the control and management method of present embodiment, described supervising device 3 further can be by the Global Positioning System (GPS) (GPS of dress in the vehicle, Global Positioning System) and/or wireless transceiver system, so that vehicle is when entering in the monitoring range district, can transmit described vehicle data automatically to supervising device 3, so that supervising device 3 can initiatively be obtained the vehicle data of intersection vehicle at that time in another way fast, and then above-mentioned vehicle data is transferred to control module 4.Just utilize the Global Positioning System (GPS) (GPS) of the normal interior dress of present vehicle, and dispose one and can carry out the wireless transceiver system of interaction function with supervising device 3, when described vehicle enters in the monitoring range of an intersection 1 set supervising device 3, can transmit described vehicle data automatically to supervising device 3, just gps system (Global Positioning System (GPS)) that supervising device 3 can be by dress in the vehicle and/or wireless transceiver system to be obtaining the vehicle data of intersection vehicle at that time fast, and then above-mentioned vehicle data is transferred to control module 4 to incorporate processing into.
Again in the control and management method of present embodiment, when a special vehicle such as fire truck, ambulance etc. enter in the monitoring range district, described special vehicle can transmit described vehicle data automatically to supervising device 3, and described supervising device 3 further can be set a weighted value at described special vehicle, make when control module 4 senses the weighted value of special vehicle, control module 4 be an exportable enabling signal to the control box 20 of traffic lights 2 to control the bright lamp pattern that changes traffic lights 2, with the described special vehicle priority pass of quick opening; Just when control module 4 senses the weighted value of special vehicle, control module 4 be an exportable enabling signal to the control box 20 of traffic lights 2 with control change traffic lights 2 bright lamp pattern with open described special vehicle priority pass, to reach urgent current high-level efficiency traffic keyholed back plate effect.
＜the second embodiment 〉
The method for controlling traffic signal lamps of crossroad of present embodiment comprises following steps:
With a scope zone of an intersection all directions road 10 as the monitoring range district;
Utilize array supervising device 3 with automatically wait in the monitoring range district of detecting and the described intersection of identification all directions road 10 at any time or travel in vehicle number or vehicle data such as the speed of a motor vehicle, and form the vehicle data weights, and the vehicle data weights of gained are transported to a control module 4;
Utilize described control module 4 to handle vehicle data weights, and further detect and calculating obtains phase difference between the vehicle data weights of all directions road, with as with reference to being worth by all directions road of each supervising device 3 input;
Again according to the above-mentioned reference value, by control module 4 output adjustment signals to the control box 20 of traffic lights 2 to control the bright lamp pattern that changes traffic lights 2, with the green light lighting time of the variant direction road of relative increase and decrease.
Wherein, can increase the green light lighting time of the bigger road of described vehicle data weights relatively when the vehicle data weights of a direction road during greater than the vehicle data weights of other direction road; And the recruitment of green light lighting time of the road that described vehicle data weights are bigger is the proportional increase according to the size of the phase difference between the vehicle data weights of all directions road.
Present embodiment is to utilize supervising device 3 and control module 4, and only according to the phase difference in the reference value, with the green light lighting time (being transit time) of the variant direction road 10 of relative increase and decrease, just a kind of according to the size of phase difference the intelligent keyholed back plate pattern of stepless of proportional increase green light lighting time, the main difference point of itself and first embodiment is that present embodiment selects not consider that proportionate relationship between the vehicle data weights of all directions road 10 is 0 or the situation (direction there is not car) when infinitely great, and only be designed to merely according to the size of phase difference green light lighting time with the variant direction road of relative increase and decrease, so can be considered a kind of intelligent keyholed back plate pattern of simplifying of stepless of first embodiment.
＜the three embodiment 〉
The method for controlling traffic signal lamps of crossroad of present embodiment comprises following steps:
With a scope zone of an intersection all directions road 10 as the monitoring range district;
Utilize array supervising device 3 with automatically wait in the monitoring range district of detecting and the described intersection of identification all directions road 10 at any time or travel in vehicle number or vehicle data such as the speed of a motor vehicle and form the vehicle data weights; And can carry out interactive wireless transceiver system with supervising device 3 by adorning one in the vehicle, can make described vehicle data transfer to supervising device in the time of in described vehicle enters the monitoring range district; And wherein must preferentially can set special vehicle data weights by the special vehicle of intersection fast, and the vehicle data weights of gained are transported to control module 4;
Utilize described control module 4 to handle vehicle data weights, and further detect and calculating obtains phase difference and proportionate relationship between the vehicle data weights of all directions road, with as with reference to being worth by all directions road of each supervising device input;
Again according to described these reference values, by control module 4 output adjustment signals to the control box 20 of traffic lights 2 to control the bright lamp pattern that changes traffic lights 2, with the green light lighting time of relative increase and decrease two different directions roads;
Wherein, the recruitment of green light lighting time of the road that described vehicle data weights are bigger is the proportional increase according to the size of the phase difference between the vehicle data weights of all directions road; Phase difference between the vehicle data weights of all directions road 10 is not equal to 0 again, and the proportionate relationship between the vehicle data weights is 0 or when infinitely great, the traffic lights 2 with road of vehicle data weights can be converted to immediately the bright lamp pattern of green light; Detect the intersection when having special vehicle to enter when the control box 20 of supervising device 3 or control module 4 or traffic lights 2 again, can control and change the traffic lights pattern, so that traffic lights 2 change its urgent keyholed back plate pattern automatically, so that the traffic lights 2 of special vehicle place direction road were changed into the green light lighting lamp state immediately at that time, to open the special vehicle priority pass.
Present embodiment is to utilize supervising device 3 and control module 4, and when comprising the size of phase difference of reference value and proportionate relationship (being 0 or infinitely great) according to reference value (weights) magnitude relationship with green light lighting time (transit time) of the variant direction road of relative increase and decrease, and transmit vehicle data automatically to supervising device by dress GPS and/or wireless transceiver system in the vehicle simultaneously, and when control module senses the weighted value of special vehicle the exportable enabling signal of control module to the control box 20 of traffic lights 2 with control change traffic lights 3 bright lamp pattern with open described special vehicle priority pass, therefore, the main difference point of the present embodiment and first embodiment is that present embodiment is set simultaneously have been increased and can transmit vehicle data automatically to two functions such as supervising device and open special vehicle priority passes by vehicle, and forms a stepless keyholed back plate pattern with above-mentioned two functions.
＜the four embodiment 〉
The method for controlling traffic signal lamps of crossroad of present embodiment comprises following steps:
With a scope zone of an intersection all directions road 10 as the monitoring range district;
Utilize array supervising device 3 with automatically wait in the monitoring range district of detecting and the described intersection of identification all directions road at any time or travel in vehicle number or vehicle data such as the speed of a motor vehicle and form the vehicle data weights; And by adorning a wireless transceiver system that can carry out interaction function in the special vehicle with supervising device 3, make when described special vehicle enters the monitoring range district, can transmit described special vehicle data automatically to supervising device 3, or directly transfer to the control box 20 of control module 4 or traffic lights 2;
When supervising device 3 (or control box 20 of control module 4 or traffic lights 2) detects the intersection when having special vehicle to enter, can control and change the traffic lights pattern, so that traffic lights change its urgent keyholed back plate pattern automatically, so that the traffic lights 2 of special vehicle place direction road were changed into the green light lighting lamp state immediately at that time, to open the special vehicle priority pass.
This enforcement on the contrary utilizes supervising device 3 and control module 4, and as long as supervising device 3 (or control module 4) is when sensing the weighted value of special vehicle, control module 4 be an exportable enabling signal to the control box 20 of traffic lights 2 to control the bright lamp pattern that changes traffic lights 2, with open described special vehicle priority pass; Present embodiment and the main difference point of aforementioned the first～three embodiment are that present embodiment selects not consider size of difference mutually or the proportionate relationship between the vehicle data weights of all directions road 10, and be designed to merely only promptly control the bright lamp pattern that changes traffic lights 2 according to the weighted value of special vehicle, to open the keyholed back plate pattern of described special vehicle priority pass at once, just present embodiment only carries out keyholed back plate at special vehicle, just special vehicle can transmit the special vehicle data automatically to supervising device 3, so that the traffic lights 2 of special vehicle place direction road were changed into the green light lighting lamp state immediately at that time, to open the special vehicle priority pass; Just this 4th embodiment is especially at palpus preferential quick special vehicle such as fire truck by intersection 1, ambulances etc. are set especially a keyholed back plate mode that can change traffic lights 2 rapidly in addition, promptly when described special vehicle enters in the monitoring range of an intersection 1 set supervising device 3, can transmit the control box 20 of described special vehicle data automatically to supervising device 3 or control module 4 or traffic lights 2, can directly control and change the traffic lights pattern with rapid open special vehicle priority pass, just the special vehicle data that transfer to supervising device 3 or control module 4 or traffic lights control box 20 automatically with described special vehicle are first preferential, detect the vehicle data weights of intersection 1 two different directions roads 10 or the operation program of its phase difference or special vehicle weighted value and skip control module 4, directly change traffic lights pattern to emergency circumstance keyholed back plate pattern, with rapid open special vehicle priority pass.
Further can on traffic lights 2, set a special cresset again in the control and management method of present embodiment,, supply other vehicle drivers of intersection can learn described information according to this and abdicate the track to show special vehicle palpus priority pass; It further can set the demonstration captions of demonstration captions such as LED mode on traffic lights 2 again, with expression special vehicle palpus priority pass is arranged, and supplies other vehicle drivers of intersection can learn described information according to this and abdicate the track.
More than shown in only be preferred embodiment of the present invention, only be illustrative for the purpose of the present invention, and nonrestrictive.Those skilled in the art is understood, and can carry out many changes to it in the spirit and scope that claim of the present invention limited, revise, even the equivalence change, but all will fall within the scope of protection of the present invention.
Claims (14)
1. method for controlling traffic signal lamps of crossroad, it is in order to the traffic lights of keyholed back plate one intersection, it is characterized in that, comprises following steps:
With a scope zone of an intersection all directions road as the monitoring range district;
Utilize the array supervising device with automatically wait in the monitoring range district of detecting and the described intersection of identification all directions road at any time or travel in vehicle number or speed of a motor vehicle vehicle data, and form the vehicle data weights, and the vehicle data weights of gained are transported to a control module;
Utilize described control module to handle vehicle data weights, and further detect and calculating obtains relation between the vehicle data weights of all directions road, with as with reference to being worth by all directions road of each supervising device input;
Again according to described reference value, by described control module output adjustment signal to the control box of traffic lights to control the bright lamp pattern that changes traffic lights, with the green light lighting time of the variant direction road of relative increase and decrease, wherein, increase the green light lighting time of the big road of described vehicle data weights relatively when the vehicle data weights of a direction road during greater than the vehicle data weights of other direction road.
2. according to the control and management method of the described intersection of claim 1 traffic lights, it is characterized in that, detecting and calculating obtains in the step of the relation between the vehicle data weights of all directions road, relation between the described vehicle data weights further comprises the phase difference between the vehicle data weights of all directions road, and the recruitment of green light lighting time of the road that wherein said vehicle data weights are big is the proportional increase according to the size of phase difference between the vehicle data weights of all directions road.
3. according to the control and management method of the described intersection of claim 1 traffic lights, it is characterized in that, detecting and calculating obtains in the step of the relation between the vehicle data weights of all directions road, relation between the described vehicle data weights further comprises the proportionate relationship between the vehicle data weights of all directions road, wherein when the ratio between the vehicle data weights of all directions road be 0 or when infinitely great, the traffic lights that will have the road of vehicle data weights are converted to the bright lamp pattern of green light immediately.
4. according to the control and management method of the described intersection of claim 1 traffic lights, it is characterized in that, it is the emergency circumstance keyholed back plate pattern of default at least one traffic lights in the control box of traffic lights further, and each emergency circumstance keyholed back plate pattern is the green light lighting time at variant direction road to increase and decrease a different time quantum relatively, an emergency circumstance keyholed back plate pattern changes the bright lamp pattern of traffic lights to control to select wherein to the control box of traffic lights to make described control module export adjustment signal according to reference value, with the green light lighting time of the variant direction road of relative increase and decrease.
5. according to the control and management method of the described intersection of claim 2 traffic lights, it is characterized in that, at the phase difference between the vehicle data weights of all directions road, preestablish a difference limit value, make the phase difference of vehicle data weights that detects all directions road when control module during more than or equal to described difference limit value, described control module output adjustment signal to the control box of traffic lights changes the bright lamp pattern of traffic lights to control, with the green light lighting time of the variant direction road of relative increase and decrease.
6. according to the control and management method of the described intersection of claim 1 traffic lights, it is characterized in that described control module is a computer apparatus.
7. according to the control and management method of the described intersection of claim 1 traffic lights, it is characterized in that, described control and management method is further used for comprising in the regional formula traffic signal lamp system of several intersections, and the traffic lights of several relevant intersections in the area can be used with wired or wireless mode line.
8. according to the control and management method of the described intersection of claim 1 traffic lights, it is characterized in that, described supervising device is Global Positioning System (GPS) and/or the wireless transceiver system by adorning in the vehicle further, so that vehicle is when entering in the monitoring range district, promptly transmit described vehicle data automatically to supervising device, so that supervising device is obtained the vehicle data of intersection vehicle at that time, and then above-mentioned vehicle data is transferred to described control module.
9. the method for supervising of described according to Claim 8 intersection traffic lights, it is characterized in that, in the time of in a special vehicle enters the monitoring range district, described special vehicle transmits described vehicle data automatically to supervising device, and described supervising device is further set a weighted value at described special vehicle, make when control module senses the weighted value of special vehicle, control module is promptly exported an enabling signal to the control box of traffic lights and is changed the bright lamp pattern of traffic lights with open described special vehicle priority pass to control.
10. method for controlling traffic signal lamps of crossroad, it is in order to the traffic lights of keyholed back plate one intersection, it is characterized in that, comprises following steps:
With a scope zone of an intersection all directions road as the monitoring range district;
Utilize the array supervising device with automatically wait in the monitoring range district of detecting and the described intersection of identification all directions road at any time or travel in vehicle number or speed of a motor vehicle vehicle data, and form the vehicle data weights, and the vehicle data weights of gained are transported to a control module;
Utilize described control module to handle vehicle data weights, and further detect and calculating obtains phase difference between the vehicle data weights of all directions road, with as with reference to being worth by all directions road of each described supervising device input;
Again according to aforementioned described reference value, by control module output adjustment signal to the control box of traffic lights to control the bright lamp pattern that changes traffic lights, with the green light lighting time of the variant direction road of relative increase and decrease, wherein, increase the green light lighting time of the big road of described vehicle data weights relatively when the vehicle data weights of a direction road during greater than the vehicle data weights of other direction road;
Wherein, the recruitment of green light lighting time of the road that described vehicle data weights are big is the proportional increase according to the size of the phase difference between the vehicle data weights of all directions road.
11. a method for controlling traffic signal lamps of crossroad, it is in order to the traffic lights of keyholed back plate one intersection, it is characterized in that, comprises following steps:
With a scope zone of an intersection all directions road as the monitoring range district;
Utilize the array supervising device with automatically wait in the monitoring range district of detecting and the described intersection of identification all directions road at any time or travel in vehicle number or speed of a motor vehicle vehicle data and form the vehicle data weights; And carry out interactive wireless transceiver system with described supervising device by adorning one in the vehicle, even described vehicle data transfers to described supervising device in described vehicle enters the monitoring range district time; And wherein must preferentially set special vehicle data weights by the special vehicle of intersection fast, and the vehicle data weights of gained are transported to control module;
Utilize described control module to handle vehicle data weights, and further detect and calculating obtains phase difference and proportionate relationship between the vehicle data weights of all directions road, with as with reference to being worth by all directions road of each described supervising device input;
Again according to described these reference values, by control module output adjustment signal to the control box of traffic lights to control the bright lamp pattern that changes traffic lights, with the green light lighting time of relative increase and decrease two different directions roads;
Wherein, the recruitment of green light lighting time of the road that described vehicle data weights are big is the proportional increase according to the size of the phase difference between the vehicle data weights of all directions road;
Wherein, the phase difference between the vehicle data weights of all directions road is not equal to 0, and the proportionate relationship between the vehicle data weights is 0 or when infinitely great, the traffic lights that will have the road of vehicle data weights are converted to the bright lamp pattern of green light immediately;
Wherein, when the control box of described supervising device or described control module or described traffic lights detects the intersection when having special vehicle to enter, promptly control and change the traffic lights pattern, so that traffic lights change its urgent keyholed back plate pattern automatically, so that the traffic lights of special vehicle place direction road were changed into the green light lighting lamp state immediately at that time, to open the special vehicle priority pass.
12. a method for controlling traffic signal lamps of crossroad, it is in order to the traffic lights of keyholed back plate one intersection, it is characterized in that, comprises following steps:
With a scope zone of an intersection all directions road as the monitoring range district;
Utilize the array supervising device with automatically wait in the monitoring range district of detecting and the described intersection of identification all directions road at any time or travel in vehicle number or speed of a motor vehicle vehicle data and form the vehicle data weights; And carry out the wireless transceiver system of interaction function with described supervising device by adorning one in the special vehicle, make when described special vehicle enters the monitoring range district, automatically transmit described special vehicle data to described supervising device, or the control box of described control module or traffic lights;
When the control box of described supervising device or described control module or described traffic lights detects the intersection when having special vehicle to enter, promptly control and change the traffic lights pattern, so that traffic lights change its urgent keyholed back plate pattern automatically, so that the traffic lights of special vehicle place direction road were changed into the green light lighting lamp state immediately at that time, to open the special vehicle priority pass.
13. control and management method according to the described intersection of claim 12 traffic lights, it is characterized in that, it further sets a special cresset to show special vehicle palpus priority pass on traffic lights, supply other vehicle drivers of intersection can learn described information according to this and abdicate the track.
14. control and management method according to the described intersection of claim 12 traffic lights, it is characterized in that, it further sets one and shows that captions have special vehicle palpus priority pass with expression, supply other vehicle drivers of intersection can learn described information according to this and abdicate the track on traffic lights.
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| CN200810172055A CN101727752A (en) | 2008-10-28 | 2008-10-28 | Method for controlling traffic signal lamps of crossroad |
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| CN200810172055A CN101727752A (en) | 2008-10-28 | 2008-10-28 | Method for controlling traffic signal lamps of crossroad |
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| CN108648473A (en) * | 2018-04-04 | 2018-10-12 | 武汉市技领科技有限公司 | Traffic signal light control device, system and method |
| 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 |
| CN109272765A (en) * | 2018-11-13 | 2019-01-25 | 郑州云海信息技术有限公司 | A kind of virtual traffic lights management system, method and navigation system |
| CN110136433A (en) * | 2019-03-22 | 2019-08-16 | 北京车和家信息技术有限公司 | Traffic control method, cloud server, traffic signal devices and vehicle |
| CN111785049A (en) * | 2020-07-14 | 2020-10-16 | 深圳市金光道交通技术有限公司 | Control method for automatic green wave traffic signal of special vehicle |
| CN111954357B (en) * | 2020-08-12 | 2022-09-16 | 烽火通信科技股份有限公司 | Time synchronization method and system for NB-IoT street lamp single lamp controller |
| CN111954357A (en) * | 2020-08-12 | 2020-11-17 | 烽火通信科技股份有限公司 | Time synchronization method and system for NB-IoT street lamp single lamp controller |
| CN112133112A (en) * | 2020-09-25 | 2020-12-25 | 安徽达尔智能控制系统股份有限公司 | Urban road intersection traffic control system based on traffic big data |
| CN112133112B (en) * | 2020-09-25 | 2022-01-11 | 安徽沁联软件科技有限公司 | Urban road intersection traffic control system based on traffic big data |
| CN113570881A (en) * | 2021-07-22 | 2021-10-29 | 芜湖雄狮汽车科技有限公司 | Signal lamp control method and device, electronic equipment and storage medium |
| CN114049760A (en) * | 2021-10-22 | 2022-02-15 | 北京经纬恒润科技股份有限公司 | Traffic control method, device and system based on intersection |
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