CN111613070A - Traffic signal lamp control method, traffic signal lamp control device, electronic equipment and computer storage medium - Google Patents
Traffic signal lamp control method, traffic signal lamp control device, electronic equipment and computer storage medium Download PDFInfo
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- CN111613070A CN111613070A CN201910138846.4A CN201910138846A CN111613070A CN 111613070 A CN111613070 A CN 111613070A CN 201910138846 A CN201910138846 A CN 201910138846A CN 111613070 A CN111613070 A CN 111613070A
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- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/07—Controlling traffic signals
- G08G1/08—Controlling traffic signals according to detected number or speed of vehicles
Abstract
The embodiment of the application provides a traffic signal lamp control method, a traffic signal lamp control device, electronic equipment and a computer storage medium, wherein the method comprises the following steps: acquiring first road condition information within a preset time period and within a specified range from the position of a target traffic signal lamp; generating a first control strategy of the target traffic signal lamp according to the first road condition information; and sending the first control strategy to the target traffic signal lamp so that the target traffic signal lamp outputs a control signal according to the first control strategy.
Description
Technical Field
The present application relates to the field of computer technologies, and in particular, to a traffic signal lamp control method, an apparatus, an electronic device, and a computer storage medium.
Background
At present, road traffic operation is mainly controlled by traffic lights, and traffic police assist is used for controlling, but the existing traffic lights generally indicate the change of traffic operation states according to preset rules, and taking traffic lights as an example, the number of seconds of red light and the number of seconds of green light of the traffic lights are controlled by the preset rules, so that the traffic operation is indicated.
However, the scheme for controlling the traffic operation based on the preset rule may not be suitable for the actual traffic operation, for example, at the early peak, the number of vehicles going out of the city is much smaller than that of vehicles going into the city, and at the late peak, the number of vehicles going out of the city is much larger than that of vehicles going into the city, in which case, if the traffic operation is still controlled according to the scheme, the traffic jam may be caused.
Disclosure of Invention
In view of the above, an object of the embodiments of the present application is to provide a traffic signal light control method, apparatus, electronic device and computer storage medium to alleviate traffic congestion in a specific time period.
Mainly comprises the following aspects:
in a first aspect, an embodiment of the present application provides a traffic signal lamp control method, including:
acquiring first road condition information within a preset time period and within a specified range from the position of a target traffic signal lamp;
generating a first control strategy of the target traffic signal lamp according to the first road condition information;
and sending the first control strategy to the target traffic signal lamp so that the target traffic signal lamp outputs a control signal according to the first control strategy.
Optionally, before acquiring the first road condition information within a specified range from the position of the target traffic signal lamp within a preset time period, the method further includes:
counting the vehicle density in the specified range in different time periods in one day in the last preset number of days;
and screening the time period with the corresponding vehicle density larger than a preset threshold value as the preset time period.
Optionally, the first condition information includes:
a first number of vehicles and a first travel speed of the vehicles.
Optionally, the generating a first control strategy of the target traffic signal lamp according to the first road condition information includes:
calculating a second number of vehicles passing through the location in unit time according to the first number of vehicles and a first traveling speed of the vehicles;
and generating the first control strategy according to the second vehicle quantity.
Optionally, the first control strategy comprises:
a duration of the first control signal for indicating passable and a duration of the second control signal for indicating stop of passage.
Alternatively,
the second number of vehicles is proportional to a duration of the first control signal.
Alternatively,
the duration of the first control signal is greater than or equal to a first minimum configuration duration, and the duration of the second control signal is greater than or equal to a second minimum configuration duration.
Optionally, calculating a second number of vehicles passing the location per unit time based on the first number of vehicles and the first travel speed of the vehicle comprises:
calculating an average traveling speed of the vehicle according to the first traveling speed of the vehicle;
calculating the second number of vehicles according to the first number of vehicles and the average running speed of the vehicles.
Optionally, the position includes at least two roads with different driving directions, and the obtaining of the first road condition information within the specified range from the position of the target traffic signal lamp within the preset time period includes:
and acquiring first road condition information of each road within the specified range from the position of the target traffic signal lamp within the preset time period.
Optionally, the method further comprises:
and obtaining second road condition information which is within the specified range from the position of the target traffic signal lamp within the current preset time length, wherein the second road condition information comprises: a second number of vehicles and a second travel speed of the vehicles;
judging whether the second road condition information meets any one or two of the following conditions: the second number of vehicles exceeds a vehicle number threshold, and a second travel speed of the vehicle is less than a speed threshold;
if yes, generating a second control strategy of the target traffic signal lamp according to the second road condition information;
and sending the second control strategy to the target traffic signal lamp so that the target traffic signal lamp outputs a control signal according to the second control strategy.
In a second aspect, an embodiment of the present application provides a traffic signal lamp control device, including:
the system comprises an acquisition unit, a processing unit and a processing unit, wherein the acquisition unit is used for acquiring first road condition information of a position of a distance target traffic signal lamp within a preset time period within a specified range;
the generating unit is used for generating a first control strategy of the target traffic signal lamp according to the first road condition information;
and the sending unit is used for sending the first control strategy to the target traffic signal lamp so that the target traffic signal lamp outputs a control signal according to the first control strategy.
Optionally, the apparatus further comprises:
the statistical unit is used for counting the vehicle density in the specified range in different time periods within one day in the latest preset number of days before acquiring the first road condition information which is within the specified range from the position of the target traffic signal lamp within the preset time period;
and the screening unit is used for screening the time period of which the corresponding vehicle density is greater than a preset threshold value as the preset time period.
Optionally, the first condition information includes:
a first number of vehicles and a first travel speed of the vehicles.
Optionally, when the generating unit is configured to generate the first control strategy of the target traffic signal lamp according to the first road condition information, the method includes:
calculating a second number of vehicles passing through the location in unit time according to the first number of vehicles and a first traveling speed of the vehicles;
and generating the first control strategy according to the second vehicle quantity.
Optionally, the first control strategy comprises:
a duration of the first control signal for indicating passable and a duration of the second control signal for indicating stop of passage.
Alternatively,
the second number of vehicles is proportional to a duration of the first control signal.
Optionally, a duration of the first control signal is greater than or equal to a first minimum configuration duration, and a duration of the second control signal is greater than or equal to a second minimum configuration duration.
Optionally, when the generating unit is configured to calculate a second number of vehicles passing through the location in unit time according to the first number of vehicles and the first traveling speed of the vehicle, the method includes:
calculating an average traveling speed of the vehicle according to the first traveling speed of the vehicle;
calculating the second number of vehicles according to the first number of vehicles and the average running speed of the vehicles.
Optionally, the position includes at least two roads with different driving directions, and when the obtaining unit is configured to obtain first road condition information that a position where a distance target traffic signal lamp is located within a specified range within a preset time period, the obtaining unit includes:
and acquiring first road condition information of each road within the specified range from the position of the target traffic signal lamp within the preset time period.
Alternatively,
the obtaining unit is further configured to obtain second road condition information within the specified range from the position of the target traffic signal lamp within a current preset time, where the second road condition information includes: a second number of vehicles and a second travel speed of the vehicles;
the device further comprises:
a judging unit, configured to judge whether the second road condition information satisfies any one or two of the following conditions: the second number of vehicles exceeds a vehicle number threshold, and a second travel speed of the vehicle is less than a speed threshold;
the generating unit is further used for generating a second control strategy of the target traffic signal lamp according to the second road condition information when the judgment result of the judging unit is satisfied;
the sending unit is further configured to send the second control strategy to the target traffic signal lamp, so that the target traffic signal lamp outputs a control signal according to the second control strategy.
In a third aspect, an embodiment of the present application further provides an electronic device, including: a processor, a storage medium and a bus, the storage medium storing machine-readable instructions executable by the processor, the processor and the storage medium communicating over the bus when the electronic device is running, the processor executing the machine-readable instructions to perform the steps of the method according to any one of the first aspect when executed.
In a fourth aspect, the present application further provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to perform the steps of the method according to any one of the first aspect.
In the embodiment of the application, in order to relieve traffic pressure and reduce traffic congestion, first road condition information within a specified range from a position of a target traffic signal lamp within a preset time period is obtained, the congestion situation at the target traffic signal can be determined through the step, and which direction is relatively more congested can be analyzed, then a first control strategy of the target traffic signal lamp is generated according to the first road condition information, and a control strategy for adjusting the target traffic signal can be generated according to the first road condition information through the step, that is: the corresponding control scheme can be automatically generated according to the first road condition information, so that the generated first control strategy relatively conforms to the current traffic road condition, and then the first control strategy is sent to the target traffic signal lamp, so that the target traffic signal lamp outputs a control signal according to the first control strategy, namely: the target traffic signal lamp adjusts the current control strategy to be the first control strategy, so that the vehicle travels according to the first control strategy, and the first control strategy is generated according to the first road condition information, so that after the target traffic signal lamp outputs the control signal according to the first control strategy, the situation of traffic jam in the preset time period is favorably alleviated, for example, when the preset time period is the early peak time period, the number of vehicles with the road condition information in the city entering direction is far larger than that in the city exiting direction, and the control strategy generated according to the road condition information can be as follows: the signal duration of controlling the passing of the city entering direction is far longer than the signal duration of controlling the stopping of the city entering direction, namely: the signal time length for controlling the passing of the urban entering direction is far longer than the signal time length for controlling the passing of the urban exiting direction, so that the congestion condition of vehicles entering the urban area is relieved.
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic flow chart of a traffic signal light control method according to an embodiment of the present disclosure;
fig. 2 is a schematic flow chart of another traffic light control method according to an embodiment of the present disclosure;
fig. 3 is a schematic flow chart of another traffic light control method according to an embodiment of the present disclosure;
fig. 4 is a schematic flow chart of another traffic light control method according to an embodiment of the present disclosure;
fig. 5 is a schematic flow chart of another traffic light control method according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a traffic signal lamp control device according to a second embodiment of the present application;
fig. 7 is a schematic structural diagram of another traffic signal lamp control device according to a second embodiment of the present application;
fig. 8 is a schematic structural diagram of another traffic signal lamp control device according to the second embodiment of the present application;
fig. 9 is a schematic structural diagram of an electronic device according to a third embodiment of the present application.
Detailed Description
In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it should be understood that the drawings in the present application are for illustrative and descriptive purposes only and are not used to limit the scope of protection of the present application. Additionally, it should be understood that the schematic drawings are not necessarily drawn to scale. The flowcharts used in this application illustrate operations implemented according to some embodiments of the present application. It should be understood that the operations of the flow diagrams may be performed out of order, and steps without logical context may be performed in reverse order or simultaneously. One skilled in the art, under the guidance of this application, may add one or more other operations to, or remove one or more operations from, the flowchart.
In addition, the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
In order to enable a person skilled in the art to use the present disclosure, the following embodiments are given in connection with a specific application scenario "reducing traffic congestion". It will be apparent to those skilled in the art that the general principles defined herein may be applied to other embodiments and applications without departing from the spirit and scope of the application. Although the present application is described primarily in terms of reducing traffic congestion, it should be understood that this is merely one exemplary embodiment.
It should be noted that in the embodiments of the present application, the term "comprising" is used to indicate the presence of the features stated hereinafter, but does not exclude the addition of further features.
One aspect of the present application relates to a traffic signal light control method. The method can generate a first control strategy of the target traffic signal lamp through first road condition information within a specified range from the position of the target traffic signal lamp within a preset time period, so that the target traffic signal lamp outputs control information according to the first control strategy, and the traffic jam condition is relieved.
It is noted that, before the application of the present application, in the related art, the traffic signal lamps are controlled according to a preset strategy, and adaptive adjustment cannot be performed according to the actual situation of traffic congestion. However, the traffic signal lamp control method provided by the application can adaptively adjust the control strategy according to the congestion situation of the current traffic so as to alleviate the traffic congestion situation. The following is described in detail by way of several examples.
Example one
Fig. 1 is a schematic flow chart of a traffic signal light control method according to an embodiment of the present application, as shown in fig. 1, the method includes the following steps:
Specifically, for a road, the number of vehicles on the road is significantly larger in a certain time period, and the number of vehicles on the road is more normal in time periods other than the certain time period. Meanwhile, for vehicles running on the road, in general, the vehicles may stop running and wait only at the traffic light, if the number of the vehicles on the road is large, a traffic jam may occur, and the traffic light generally appears at the position of the jam, and the road condition of the traffic light can reflect the current jam condition of the road.
For example, in an early peak time period, many people may catch up from the outside of the city to the inside of the city or do other things, at this time, the number of vehicles on the road in the city entering direction is obviously greater than the number of vehicles on the road in the city exiting direction, in a late peak time period, many people may catch up from the inside of the city to the outside of the city and go home, at this time, the number of vehicles on the road in the city exiting direction may be obviously greater than the number of vehicles in the city entering direction, for some roads, no matter in the early peak time period or the late peak time period, the number of vehicles in the city entering direction and the vehicle in the city exiting direction may be greater, the vehicles on the road intersecting with the road may be relatively smaller, when the number of vehicles is greater, congestion may be formed at the traffic signal lamp under a general condition, and at this time, the traffic condition at the traffic signal lamp.
Based on the reasons, first road condition information of the position of the distance target traffic signal lamp within a preset time period within a specified range needs to be acquired, and whether traffic jam occurs currently or not and a specific road with the traffic jam can be analyzed through the first road condition information.
It should be noted that the preset time period may be set manually, or may be obtained by counting the big data, and when the preset time period is set manually, the setting personnel may set the time period according to experience, for example: the congestion time period in one day can be determined according to experience, the congestion time period is determined as a preset time period, the congestion time period can be determined by combining seasons, or the congestion time period can be determined by combining experience when a large event (such as carrying out a large-scale activity in the local area, carrying out a large-scale competition, or carrying out a national conference) occurs; when the preset time period is obtained by counting the big data, the congestion time period within a certain number of days may be determined as the preset time period, or the preset time period may be determined according to the congestion time period in the past year, and a specific determination method may be set according to actual needs, which is not specifically limited herein.
It should be noted that, the specific value of the designated range can be set according to actual needs, for example, the designated range can be 100 meters or 200 meters, and the specific value of the designated range is not specifically limited herein.
It should be noted again that the first road condition information may be obtained by the camera, for example, the camera may be used to shoot picture data at the position of the target traffic light within a preset time period, and then analyze data in the picture data within a specified range from the position, so as to determine the first road condition information, and for example, the camera may be used to shoot video data at the position of the target traffic light within the preset time period, and then analyze data in the video data within the specified range from the position, so as to determine the first road condition information; or can also obtain according to laser radar, because laser radar has characteristics such as very accurate range finding ability, resolution ratio height, disguise is good, anti active interference ability is strong, small and the quality is light, consequently can accurately obtain apart from the first road condition information of target traffic signal lamp position in appointed within range through laser radar, or again can also obtain first road condition information through the form of camera and laser radar combination, or also can obtain first road condition information through other sensors again, for example: when the first road condition information is vehicle density information, a sensor capable of detecting vehicle density may be used to obtain the first road condition information, and when the first road condition information is vehicle running speed information, a sensor capable of detecting vehicle running speed may be used to obtain the first road condition information, and a specific obtaining manner of the first road condition information may be set according to the actual situation, which is not limited herein.
It should be noted again that the acquisition timing of the first road condition information may be set according to actual needs, for example, the first road condition information may be determined when the vehicle stops running in such a manner that the accuracy of the analyzed congestion situation is high, or the first road condition information may be determined at any time in such a manner that the analyzed congestion situation is closer to the real situation, and the acquisition timing of the first road condition information is not specifically limited herein.
It should be noted again that the position of the target traffic signal lamp may be an intersection, a t-junction, or a sidewalk position on a straight road, and the type of the road at the position is not specifically limited herein.
And 102, generating a first control strategy of the target traffic signal lamp according to the first road condition information.
Specifically, after the first road condition information is obtained, the traffic condition of the road controlled by the target traffic signal lamp can be determined, for example: whether the road is congested, specifically, which direction of the road is congested, and the congestion degree of the congested road, a first control strategy corresponding to the current situation may be generated according to the first road condition information, for example: the method includes changing a passing time length and/or changing a stopping time length, for example, increasing the passing time length of a congested road, shortening the stopping time length of the congested road, shortening the passing time length of an uncongested road, and increasing the stopping time length of the uncongested road, where a first control strategy may be set according to actual needs or a corresponding algorithm is preset, and a corresponding first control strategy is generated according to first road condition information, where a specific first control strategy is not specifically limited, but the first control strategy is generated according to the first road condition information, and the first control strategy can achieve a mode of relieving a traffic congestion condition at a position where a target traffic signal lamp is located, and all of the modes belong to the protection range of the embodiment of the present application.
And 103, sending the first control strategy to the target traffic signal lamp so that the target traffic signal lamp outputs a control signal according to the first control strategy.
Specifically, the first control strategy is obtained according to the first road condition information, so that the first control strategy conforms to the traffic condition of the position of the target traffic signal lamp, and the target traffic signal lamp is favorable for relieving the current congestion condition after adopting the first control strategy to output the control signal.
In the embodiment of the application, in order to relieve traffic pressure and reduce traffic congestion, first road condition information within a specified range from a position of a target traffic signal lamp within a preset time period is obtained, the congestion situation at the target traffic signal can be determined through the step, and which direction is relatively more congested can be analyzed, then a first control strategy of the target traffic signal lamp is generated according to the first road condition information, and a control strategy for adjusting the target traffic signal can be generated according to the first road condition information through the step, that is: the corresponding control scheme can be automatically generated according to the first road condition information, so that the generated first control strategy relatively conforms to the current traffic road condition, and then the first control strategy is sent to the target traffic signal lamp, so that the target traffic signal lamp outputs a control signal according to the first control strategy, namely: the target traffic signal lamp adjusts the current control strategy to be the first control strategy, so that the vehicle travels according to the first control strategy, and the first control strategy is generated according to the first road condition information, so that after the target traffic signal lamp outputs the control signal according to the first control strategy, the situation of traffic jam in the preset time period is favorably alleviated, for example, when the preset time period is the early peak time period, the number of vehicles with the road condition information in the city entering direction is far larger than that in the city exiting direction, and the control strategy generated according to the road condition information can be as follows: the signal duration of controlling the passing of the city entering direction is far longer than the signal duration of controlling the stopping of the city entering direction, namely: the signal time length for controlling the passing of the urban entering direction is far longer than the signal time length for controlling the passing of the urban exiting direction, so that the congestion condition of vehicles entering the urban area is relieved.
In a possible implementation, fig. 2 is a schematic flow chart of another traffic signal light control method provided in the first embodiment of the present application, and as shown in fig. 2, before performing step 101, the method further includes the following steps:
and step 201, counting the vehicle density in the specified range in different time periods in one day in the last preset number of days.
Specifically, in a certain period, the distribution conditions of the number of vehicles on a certain road in different time periods do not change greatly, so that the vehicle density in a specified range from the position of the target traffic signal lamp in different time periods in one day in the latest preset number of days can be counted, when the vehicle density is greater than a preset threshold, the congestion condition of the road in the time period in which the corresponding vehicle density is greater than the preset threshold can be represented, the time period can be used as the preset time period, namely the congestion time period, by the method, the congestion time period in the current day can be determined according to the vehicle density condition in the latest time period, and the accuracy of the determined preset time period is higher.
To further make the determined preset time period more accurate, the preset time period may be extended by a preset number of days, or may be determined by a time period in which congestion repeatedly occurs, for example, counting different time periods of each day in the last 10 days, and the vehicle density in the specified range, and when the vehicle density at 7-9 am in 9 days or 8 days is greater than a preset threshold, determining 7-9 am as the congestion time period, that is: a preset time period.
It should be noted that, the specific preset number of days may be set according to actual needs, and the specific vehicle density may also be set according to actual needs, and is not specifically limited herein.
In one possible embodiment, the first road condition information includes: a first number of vehicles and a first travel speed of the vehicles.
Specifically, when congestion occurs on a road, the number of vehicles located at the traffic light is large, and the traveling speed of the vehicles is low, so that the acquired first road condition information may include the first number of vehicles and the first traveling speed of the vehicles, so as to determine whether congestion occurs currently and the severity of the congestion according to the two information, thereby making the determination result more accurate, and the generated first control strategy more conforms to the current congestion condition.
In order to increase the data processing speed, only one of the first number of vehicles and the first traveling speed may be acquired, the current congestion situation may be reflected by the one information, and the first control strategy may be generated by specifically selecting which information, which may be set according to actual needs, without being limited thereto.
In a possible embodiment, fig. 3 is a schematic flow chart of another traffic signal light control method provided in the first embodiment of the present application, and as shown in fig. 3, when the first road condition information includes the first number of vehicles and the first traveling speed of the vehicles, in executing step 102, the following steps may be implemented:
and 301, calculating a second vehicle quantity passing through the position in unit time according to the first vehicle quantity and the first running speed of the vehicle.
And 302, generating the first control strategy according to the second vehicle quantity.
For example, when a road is congested, the more the number of vehicles passing through the position of the target traffic signal lamp in unit time is, the lighter the congestion condition is, and the less the number of vehicles passing through the position of the target traffic signal lamp in unit time is, the more serious the congestion condition is, so that the second number of vehicles can reflect the congestion severity degree of the traffic at the position of the target traffic signal lamp, and therefore, the first control strategy generated according to the second number of vehicles better conforms to the traffic at the position of the target traffic signal lamp, and the first control strategy generated according to the second number of vehicles is more beneficial to relieving the traffic congestion condition at the position of the target traffic signal lamp.
In one possible embodiment, the first control strategy includes: a duration of the first control signal for indicating passable and a duration of the second control signal for indicating stop of passage.
In particular, traffic lights are used to control the passage and stopping of vehicles, namely: the traffic signal light output signals include at least two signals, and when the first control strategy includes a period of the first control signal for indicating passable and a period of the first control signal for indicating stop of passage, the target traffic signal light may transit the output periods of the two signals, thereby achieving the purpose of controlling the time length of vehicle passing and the time length of vehicle stopping, regulating the passing and stopping of the vehicle through the two signals, the method can regulate the congested roads, thereby being beneficial to relieving the traffic congestion, for example, for a congested road, increasing a time period of a first control signal for indicating passable, decreasing a time period of a second control signal for indicating stop of passage, therefore, the passing time length of the vehicles on the congested road is long, the stopping time length of the vehicles on the congested road is shortened, and the purpose of relieving the congestion situation is achieved.
In one possible embodiment, the second number of vehicles is proportional to a duration of the first control signal.
Specifically, the second number of vehicles may reflect a congestion degree of a congested road, and the traffic signal of a target traffic signal lamp controlling the congested road should be extended the more serious the congestion condition of the congested road is, so that more vehicles can pass through the congested road, so as to alleviate the traffic congestion condition.
It should be noted that, the specific proportional value of the second vehicle number and the first control signal may be set according to actual needs, and is not limited specifically herein.
It should be noted that, whether the duration of the second control signal is adjusted or not and the specific scheme of the adjustment may also be set according to actual needs, and is not specifically limited herein.
In one possible embodiment, the duration of the first control signal is greater than or equal to a first minimum configuration duration, and the duration of the second control signal is greater than or equal to a second minimum configuration duration.
Specifically, when a road is congested, the control signal of the corresponding target traffic light needs to be adjusted, but in order to ensure that a non-congested road can also normally pass, the time duration of the second control signal needs to be greater than or equal to a second minimum configuration time duration, at this time, the passing time duration of the non-congested road is equal to the second minimum configuration time duration, that is, the non-congested road can pass by using the second minimum configuration time duration, and in order to improve that a congested road can maximally alleviate the congestion condition, the time duration of the first control signal needs to be greater than or equal to the first minimum configuration time duration to ensure that the passing time duration of the congested road is as long as possible.
It should be noted that specific values of the first minimum configuration time period and the second minimum configuration time period may be set according to actual needs, and are not specifically limited herein.
In a possible embodiment, fig. 4 is a schematic flow chart of another traffic signal light control method provided in the first embodiment of the present application, and as shown in fig. 4, when the first road condition information includes the first number of vehicles and the first traveling speed of the vehicles, in executing step 301, the following steps may be implemented:
Specifically, in order to reduce the complexity of the calculation and the complexity of the congestion situation analysis, the first traveling speeds of the plurality of vehicles may be acquired, and then the average traveling speeds of the plurality of vehicles may be calculated to use the average traveling speed as the traveling speed of the vehicle on the congested road, and then the second number of vehicles may be calculated by the first number of vehicles and the average traveling speed of the vehicles.
In a possible embodiment, the location includes at least two roads with different driving directions, and in step 101, the first road condition information of each road within the specified range from the location of the target traffic signal lamp within the preset time period may be obtained.
Specifically, when the road controlled by the target traffic signal lamp includes at least two roads, the driving directions of the two roads are opposite, in some cases, when one road is a congested road, the other road is a non-congested road, or both the two roads are non-congested roads, in order to accurately grasp the traffic condition of each road so as to analyze the congestion condition of each road, first road condition information that the distance between each road and the position of the target traffic signal lamp is within a specified range needs to be acquired.
It should be noted that the road controlled by the target traffic signal lamp may include two straight lanes in opposite driving directions, the target traffic signal lamp is located at a sidewalk of the straight lane, or the road controlled by the target traffic signal lamp may be a cross road, the target traffic signal lamp is located at the cross road of the road, and of course, the road controlled by the target traffic signal lamp may also be other types of roads, which is not described in detail herein, and the specific type of the road controlled by the target traffic signal lamp is not specifically limited herein.
For example, when the road controlled by the target traffic light is a straight road, and one of the straight roads is an entering direction and is recorded as a first road, and the other one of the straight roads is an exiting direction and is recorded as a second road, when the preset time period is 7 to 9 points in the morning, the first road condition information at the target traffic light on the road is collected, and when the first road condition information shows that the first road is a congested road, the second road is a non-congested road, and the congestion condition of the first road is light, the generated first control strategy may be: the time period for indicating passing in the city entering direction is 1 minute, the time period for indicating stopping is 20 seconds, the pedestrian can cross the road by using the 20 seconds, and when the congestion condition of the first road is medium, the generated first control strategy can be as follows: the time length for indicating passing in the city entering direction is 1 minute and 30 seconds, the time length for indicating stopping is 20 seconds, the pedestrian can cross the road by using the 20 seconds, and when the congestion condition of the first road is serious, the generated first control strategy can be as follows: the time length for indicating passing in the city entering direction is 2 minutes, the time length for indicating stopping is 20 seconds, and the pedestrian can use the 20 seconds to cross the road; when the preset time period is 17-19 pm, the control scheme in the morning can be referred to, the specific passing time and the stopping time can be set according to the current congestion degree, and the traffic congestion condition on the straight road can be relieved through the scheme.
When the roads controlled by the target traffic light are crossroads, one of the crossroads or the road with the opposite driving direction is marked as a first road, the other road or the other road with the opposite driving direction is marked as a second road, when the preset time period is 7-9 am, first road condition information at the target traffic light on the crossroads is collected, and when the first road condition information shows that the first road is a congested road, the second road is a non-congested road, and the congestion condition of the first road is light, the generated first control strategy can be as follows: the time length for indicating traffic on the first road is 1 minute, the time length for indicating stop is 20 seconds, the time length for indicating traffic on the second road is 20 seconds, the time length for indicating stop is 1 minute, and when the congestion condition of the first road is medium, the generated first control strategy may be: the time length for indicating traffic on the first road is 1 minute and 30 seconds, the time length for indicating stop is 20 seconds, the time length for indicating traffic on the second road is 20 seconds, and the time length for indicating stop is 1 minute and 30 seconds, when the congestion condition of the first road is serious, the generated first control strategy may be: the time length for indicating the passing on the first road is 2 minutes, the time length for indicating the stopping is 20 seconds, the time length for indicating the passing on the second road is 20 seconds, and the time length for indicating the stopping is 2 minutes; when the preset time period is 17-19 pm, the control scheme in the morning can be referred to, the specific passing time and the stopping time can be set according to the current congestion degree, and the traffic congestion condition on the crossroad can be relieved through the scheme.
For other types of roads, reference may be made to the implementations of the straight roads and the crossroads described above, and details thereof are not repeated here.
In a possible embodiment, fig. 5 is a schematic flow chart of another traffic signal light control method provided in the first embodiment of the present application, and as shown in fig. 5, the method further includes the following steps:
and 501, obtaining second road condition information which is within the specified range from the position of the target traffic signal lamp within the current preset time.
Wherein the second condition information includes: a second number of vehicles and a second travel speed of the vehicles.
And 503, if the second road condition information is met, generating a second control strategy of the target traffic signal lamp according to the second road condition information.
And step 504, sending the second control strategy to the target traffic signal lamp so that the target traffic signal lamp outputs a control signal according to the second control strategy.
Specifically, in some cases, vehicles may be concentrated on one road to cause a congestion situation on the road, in order to deal with the above emergency situation, it is necessary to obtain second road condition information within a specified range from a position of a target traffic light within a preset time period in real time or periodically, and determine whether the number of second vehicles in the second road condition exceeds a vehicle number threshold and whether a second driving speed is less than a speed threshold, if the number of second vehicles exceeds the vehicle threshold and/or the second driving speed is less than the speed threshold, that is, when the second road condition information satisfies at least one of the two conditions, it indicates that a traffic congestion situation occurs on the road currently, then a second control policy is generated according to the second road condition information, and after the second control policy is generated, the second control policy is sent to the target traffic light, therefore, the target traffic signal lamp can regulate the sudden traffic jam, so that the traffic can be dredged to achieve the purpose of reducing the traffic jam.
It should be noted that the manner of generating the second control policy according to the second road condition information may refer to the manner of generating the first control policy according to the first road condition information, and details are not repeated here with respect to the manner of obtaining the first road condition information, which is referred to for obtaining the second road condition information that is within the specified range from the position where the target traffic signal lamp is located within the current preset time period.
Example two
Fig. 6 is a schematic structural diagram of a traffic signal lamp control device according to a second embodiment of the present application, and as shown in fig. 6, the traffic signal lamp control device includes:
the acquisition unit 61 is used for acquiring first road condition information within a preset time period and within a specified range from the position of the target traffic signal lamp;
the generating unit 62 is configured to generate a first control strategy of the target traffic signal lamp according to the first road condition information;
and a sending unit 63, configured to send the first control strategy to the target traffic signal lamp, so that the target traffic signal lamp outputs a control signal according to the first control strategy.
In a possible implementation, fig. 7 is a schematic structural diagram of another traffic signal lamp control device provided in example two of the present application, and as shown in fig. 7, the device further includes:
the statistical unit 64 is used for counting the vehicle density in the specified range in different time periods within one day in the latest preset number of days before acquiring the first road condition information within the specified range from the position of the target traffic signal lamp within the preset time period;
the screening unit 65 is configured to screen the time period in which the corresponding vehicle density is greater than a preset threshold value as the preset time period.
In one possible embodiment, the first road condition information includes:
a first number of vehicles and a first travel speed of the vehicles.
In a possible embodiment, when the generating unit 62 is configured to generate the first control strategy of the target traffic signal lamp according to the first road condition information, the method includes:
calculating a second number of vehicles passing through the location in unit time according to the first number of vehicles and a first traveling speed of the vehicles;
and generating the first control strategy according to the second vehicle quantity.
In one possible embodiment, the first control strategy includes:
a duration of the first control signal for indicating passable and a duration of the second control signal for indicating stop of passage.
In one possible embodiment, the second number of vehicles is proportional to a duration of the first control signal.
In one possible embodiment, the duration of the first control signal is greater than or equal to a first minimum configuration duration, and the duration of the second control signal is greater than or equal to a second minimum configuration duration.
In a possible embodiment, when the generating unit 62 is configured to calculate a second number of vehicles passing through the location per unit time according to the first number of vehicles and the first traveling speed of the vehicle, the method includes:
calculating an average traveling speed of the vehicle according to the first traveling speed of the vehicle;
calculating the second number of vehicles according to the first number of vehicles and the average running speed of the vehicles.
In a possible embodiment, the position includes at least two roads with different driving directions, and when the obtaining unit 61 is configured to obtain the first road condition information within a specified range from the position of the target traffic signal lamp within a preset time period, the method includes:
and acquiring first road condition information of each road within the specified range from the position of the target traffic signal lamp within the preset time period.
In a possible implementation, fig. 8 is a schematic structural diagram of another traffic signal lamp control device provided in example two of this application, and as shown in fig. 8, the obtaining unit 61 is further configured to obtain second road condition information within the specified range from the location of the target traffic signal lamp within a current preset time period, where the second road condition information includes: a second number of vehicles and a second travel speed of the vehicles;
the device further comprises:
a judging unit 66, configured to judge whether the second road condition information satisfies any one or two of the following conditions: the second number of vehicles exceeds a vehicle number threshold, and a second travel speed of the vehicle is less than a speed threshold;
the generating unit 62 is further configured to generate a second control strategy of the target traffic signal lamp according to the second road condition information when the determination result of the determining unit 66 is satisfied;
the sending unit 63 is further configured to send the second control strategy to the target traffic signal lamp, so that the target traffic signal lamp outputs a control signal according to the second control strategy.
For the detailed description of the above units, reference may be made to the related description of the first embodiment, and detailed description thereof is omitted here.
In the embodiment of the application, in order to relieve traffic pressure and reduce traffic congestion, first road condition information within a specified range from a position of a target traffic signal lamp within a preset time period is obtained, the congestion situation at the target traffic signal can be determined through the step, and which direction is relatively more congested can be analyzed, then a first control strategy of the target traffic signal lamp is generated according to the first road condition information, and a control strategy for adjusting the target traffic signal can be generated according to the first road condition information through the step, that is: the corresponding control scheme can be automatically generated according to the first road condition information, so that the generated first control strategy relatively conforms to the current traffic road condition, and then the first control strategy is sent to the target traffic signal lamp, so that the target traffic signal lamp outputs a control signal according to the first control strategy, namely: the target traffic signal lamp adjusts the current control strategy to be the first control strategy, so that the vehicle travels according to the first control strategy, and the first control strategy is generated according to the first road condition information, so that after the target traffic signal lamp outputs the control signal according to the first control strategy, the situation of traffic jam in the preset time period is favorably alleviated, for example, when the preset time period is the early peak time period, the number of vehicles with the road condition information in the city entering direction is far larger than that in the city exiting direction, and the control strategy generated according to the road condition information can be as follows: the signal duration of controlling the passing of the city entering direction is far longer than the signal duration of controlling the stopping of the city entering direction, namely: the signal time length for controlling the passing of the urban entering direction is far longer than the signal time length for controlling the passing of the urban exiting direction, so that the congestion condition of vehicles entering the urban area is relieved.
EXAMPLE III
Fig. 9 is a schematic structural diagram of an electronic device according to a third embodiment of the present application, including: the traffic light control method comprises a processor 901, a storage medium 902 and a bus 903, wherein the storage medium stores machine readable instructions executable by the processor 901, when the electronic device runs the traffic light control method, the processor 901 and the storage medium 902 communicate through the bus 903, and the processor 901 executes the machine readable instructions to execute the steps of the traffic light control method according to any embodiment of the above embodiments.
Example four
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program performs the steps of the traffic signal lamp control method according to any of the above embodiments.
Specifically, the storage medium can be a general-purpose storage medium, such as a mobile disk, a hard disk, or the like, and when executed, the computer program on the storage medium can execute the traffic signal lamp control method, and by the method, a first control policy for a target traffic signal lamp can be generated through first road condition information within a specified range from a position of the target traffic signal lamp within a preset time period, so that the target traffic signal lamp outputs control information according to the first control policy, thereby alleviating a traffic congestion situation.
The computer program product of the image generation method provided in the embodiment of the present application includes a computer-readable storage medium storing a program code, where instructions included in the program code may be used to execute the method in the foregoing method embodiment, and specific implementation may refer to the method embodiment, which is not described herein again.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the system and the apparatus described above may refer to corresponding processes in the method embodiments, and are not described in detail in this application. In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. The above-described apparatus embodiments are merely illustrative, and for example, the division of the modules is merely a logical division, and there may be other divisions in actual implementation, and for example, a plurality of modules or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or modules through some communication interfaces, and may be in an electrical, mechanical or other form.
The modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a non-volatile computer-readable storage medium executable by a processor. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (22)
1. A traffic signal light control method, comprising:
acquiring first road condition information within a preset time period and within a specified range from the position of a target traffic signal lamp;
generating a first control strategy of the target traffic signal lamp according to the first road condition information;
and sending the first control strategy to the target traffic signal lamp so that the target traffic signal lamp outputs a control signal according to the first control strategy.
2. The method according to claim 1, wherein before acquiring the first road condition information within a specified range from the position of the target traffic signal lamp within a preset time period, the method further comprises:
counting the vehicle density in the specified range in different time periods in one day in the last preset number of days;
and screening the time period with the corresponding vehicle density larger than a preset threshold value as the preset time period.
3. The method of claim 1, wherein the first road condition information comprises:
a first number of vehicles and a first travel speed of the vehicles.
4. The method of claim 3, wherein generating a first control strategy for the target traffic signal light based on the first road condition information comprises:
calculating a second number of vehicles passing through the location in unit time according to the first number of vehicles and a first traveling speed of the vehicles;
and generating the first control strategy according to the second vehicle quantity.
5. The method of claim 4, wherein the first control strategy comprises:
a duration of the first control signal for indicating passable and a duration of the second control signal for indicating stop of passage.
6. The method of claim 5,
the second number of vehicles is proportional to a duration of the first control signal.
7. The method of claim 5,
the duration of the first control signal is greater than or equal to a first minimum configuration duration, and the duration of the second control signal is greater than or equal to a second minimum configuration duration.
8. The method of claim 4, wherein calculating a second number of vehicles passing the location per unit time based on the first number of vehicles and the first travel speed of the vehicles comprises:
calculating an average traveling speed of the vehicle according to the first traveling speed of the vehicle;
calculating the second number of vehicles according to the first number of vehicles and the average running speed of the vehicles.
9. The method of claim 1, wherein the location comprises at least two roads with different driving directions, and the obtaining the first road condition information within a specified range from the location of the target traffic signal lamp within a preset time period comprises:
and acquiring first road condition information of each road within the specified range from the position of the target traffic signal lamp within the preset time period.
10. The method of claim 1, wherein the method further comprises:
and obtaining second road condition information which is within the specified range from the position of the target traffic signal lamp within the current preset time length, wherein the second road condition information comprises: a second number of vehicles and a second travel speed of the vehicles;
judging whether the second road condition information meets any one or two of the following conditions: the second number of vehicles exceeds a vehicle number threshold, and a second travel speed of the vehicle is less than a speed threshold;
if yes, generating a second control strategy of the target traffic signal lamp according to the second road condition information;
and sending the second control strategy to the target traffic signal lamp so that the target traffic signal lamp outputs a control signal according to the second control strategy.
11. A traffic signal control apparatus, comprising:
the system comprises an acquisition unit, a processing unit and a processing unit, wherein the acquisition unit is used for acquiring first road condition information of a position of a distance target traffic signal lamp within a preset time period within a specified range;
the generating unit is used for generating a first control strategy of the target traffic signal lamp according to the first road condition information;
and the sending unit is used for sending the first control strategy to the target traffic signal lamp so that the target traffic signal lamp outputs a control signal according to the first control strategy.
12. The apparatus of claim 11, wherein the apparatus further comprises:
the statistical unit is used for counting the vehicle density in the specified range in different time periods within one day in the latest preset number of days before acquiring the first road condition information which is within the specified range from the position of the target traffic signal lamp within the preset time period;
and the screening unit is used for screening the time period of which the corresponding vehicle density is greater than a preset threshold value as the preset time period.
13. The apparatus of claim 11, wherein the first road condition information comprises:
a first number of vehicles and a first travel speed of the vehicles.
14. The apparatus as claimed in claim 13, wherein when the generating unit is configured to generate the first control strategy of the target traffic signal according to the first road condition information, it comprises:
calculating a second number of vehicles passing through the location in unit time according to the first number of vehicles and a first traveling speed of the vehicles;
and generating the first control strategy according to the second vehicle quantity.
15. The apparatus of claim 14, wherein the first control strategy comprises:
a duration of the first control signal for indicating passable and a duration of the second control signal for indicating stop of passage.
16. The apparatus of claim 15,
the second number of vehicles is proportional to a duration of the first control signal.
17. The apparatus of claim 15,
the duration of the first control signal is greater than or equal to a first minimum configuration duration, and the duration of the second control signal is greater than or equal to a second minimum configuration duration.
18. The apparatus according to claim 14, when the generation unit is configured to calculate a second number of vehicles passing through the location per unit time based on the first number of vehicles and a first traveling speed of the vehicle, comprising:
calculating an average traveling speed of the vehicle according to the first traveling speed of the vehicle;
calculating the second number of vehicles according to the first number of vehicles and the average running speed of the vehicles.
19. The apparatus according to claim 11, wherein the location includes at least two roads different in driving direction, and when the obtaining unit is configured to obtain the first road condition information within a specified range from the location of the target traffic signal lamp within a preset time period, the obtaining unit includes:
and acquiring first road condition information of each road within the specified range from the position of the target traffic signal lamp within the preset time period.
20. The apparatus of claim 11,
the obtaining unit is further configured to obtain second road condition information within the specified range from the position of the target traffic signal lamp within a current preset time, where the second road condition information includes: a second number of vehicles and a second travel speed of the vehicles;
the device further comprises:
a judging unit, configured to judge whether the second road condition information satisfies any one or two of the following conditions: the second number of vehicles exceeds a vehicle number threshold, and a second travel speed of the vehicle is less than a speed threshold;
the generating unit is further used for generating a second control strategy of the target traffic signal lamp according to the second road condition information when the judgment result of the judging unit is satisfied;
the sending unit is further configured to send the second control strategy to the target traffic signal lamp, so that the target traffic signal lamp outputs a control signal according to the second control strategy.
21. An electronic device, comprising: a processor, a storage medium and a bus, the storage medium storing machine-readable instructions executable by the processor, the processor and the storage medium communicating over the bus when the electronic device is operating, the processor executing the machine-readable instructions to perform the steps of the method of any one of claims 1 to 10 when executed.
22. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, performs the steps of the method according to any one of claims 1 to 10.
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