CN114241795A - Signal lamp adjusting method and device and computer readable storage medium - Google Patents
Signal lamp adjusting method and device and computer readable storage medium Download PDFInfo
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- G08G1/087—Override of traffic control, e.g. by signal transmitted by an emergency vehicle
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- G—PHYSICS
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- G08G—TRAFFIC CONTROL SYSTEMS
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- G—PHYSICS
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Abstract
The application discloses a signal lamp adjusting method, a device and a computer readable storage medium, wherein the signal lamp adjusting method comprises the following steps: acquiring a first time length required for completely releasing a vehicle on a target road section at the current moment, wherein the target road section is positioned on a path to be traveled of the target vehicle; and in response to the first time period meeting the preset requirement, adjusting the target signal lamp corresponding to the target road section to be in a passing state, wherein the passing state is used for indicating that the target vehicle drives away from the target road section. The signal lamp adjusting method provided by the application can improve timeliness and efficiency of dredging vehicles.
Description
Technical Field
The present application relates to the field of intelligent traffic technologies, and in particular, to a signal lamp adjusting method, an apparatus, and a computer-readable storage medium.
Background
When an emergency happens, the rescue vehicle and the rescue personnel need to quickly arrive at the first scene, corresponding emergency measures are implemented, and in the case of an ambulance, the wounded person needs to be transported back to the rescue center. In the process, even if a traffic police is dredged in time, due to the manpower limitation and the hysteresis of traffic information, the gold time for rescue can be missed due to traffic jam, and the rescue efficiency is influenced.
Disclosure of Invention
The application provides a signal lamp adjusting method, a signal lamp adjusting device and a computer-readable storage medium, which can improve timeliness and efficiency of vehicle evacuation.
A first aspect of an embodiment of the present application provides a signal lamp adjusting method, where the method includes: acquiring a first time length required for completely releasing a vehicle on a target road section at the current moment, wherein the target road section is positioned on a path to be traveled of the target vehicle; and responding to the first time length meeting a preset requirement, and adjusting a target signal lamp corresponding to the target road section to be in a passing state, wherein the passing state is used for indicating that the target vehicle drives away from the target road section.
A second aspect of the embodiments of the present application provides a signal lamp adjusting apparatus, which includes a processor, a memory, and a communication circuit, where the processor is respectively coupled to the memory and the communication circuit, the memory stores program data, and the processor implements the steps in the above method by executing the program data in the memory.
A third aspect of embodiments of the present application provides a computer-readable storage medium, which stores a computer program, the computer program being executable by a processor to implement the steps in the above method.
The beneficial effects are that: according to the method and the device, the first time length required for completely releasing the vehicles on the target road section is obtained, when the first time length is detected to meet the preset requirement, the fact that the vehicles on the target road section possibly influence the target vehicles to pass through the target road section is judged, so that the target signal lamps corresponding to the target road section are set to be in a passing state, the vehicles on the target road section are evacuated, and it is guaranteed that the follow-up target vehicles can smoothly pass through the target road section.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. Wherein:
FIG. 1 is a schematic flow chart diagram illustrating an embodiment of a signal lamp adjustment method according to the present application;
FIG. 2 is a schematic view of a roadway intersection;
FIG. 3 is a schematic flow chart of step S110 in FIG. 1;
FIG. 4 is a schematic flow chart of step S112 in FIG. 3;
FIG. 5 is a schematic structural diagram of an embodiment of a signal light adjusting device according to the present application;
FIG. 6 is a schematic structural diagram of another embodiment of a signal lamp adjusting device according to the present application;
FIG. 7 is a schematic structural diagram of an embodiment of a computer-readable storage medium according to the present application.
Detailed Description
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 is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, fig. 1 is a schematic flow chart diagram of an embodiment of a signal lamp adjusting method according to the present application, where the method includes:
s110: the method includes the steps that first time length required for completely releasing a vehicle on a target road section at the current moment is obtained, wherein the target road section is located on a path to be traveled of the target vehicle.
The signal lamp adjusting method is executed by a signal lamp adjusting device. Wherein, the signal lamp adjusting device executes the step S110 before the target vehicle runs, or executes the step S110 continuously or according to a preset time interval during the target vehicle runs.
The signal lamp execution device acquires a path to be traveled of the target vehicle, wherein the path to be traveled is a path which is not traveled by the target vehicle, the starting point of the path to be traveled is the current position of the target vehicle, and the ending point of the path to be traveled is the destination of the target vehicle.
The route to be traveled may be actively input to the signal light adjustment device by the driver of the target vehicle, or may be planned by the signal light adjustment device according to the current position and destination of the target vehicle.
For example, before driving, a driver actively informs a signal lamp adjusting device of a target path to be driven (the driver inputs the target path on a terminal such as a mobile phone or an on-board device, and then the terminal sends the target path to the signal lamp adjusting device, or the driver informs a license plate, the target path, and the like to relevant persons by a telephone, and then the relevant persons set on the signal lamp adjusting device), and then during driving, the signal lamp adjusting device determines a path which is not driven on the target path as a path to be driven according to the current position of the target vehicle on the target path.
For another example, before traveling, the driver notifies the signal lamp adjusting device of the departure point and the destination, and then the signal lamp adjusting device plans the optimal path to be traveled by the target vehicle by using an algorithm, wherein the signal lamp adjusting device continuously updates the optimal path to be traveled, which is the path to be traveled, according to the current position and the destination of the target vehicle in consideration of the possibility that the driver may adjust the path according to the actual situation during traveling. The best path may be the shortest path, may also be the minimum path of the signal lamp, and may also be the minimum path in use, which is not limited herein.
The signal lamp adjusting device may predict the current position of the target vehicle according to the latest target image of the target vehicle collected by the monitoring device.
Specifically, based on the capturing time point of the target image, the time interval between the current time point and the capturing time point, and the vehicle speed of the target vehicle (which may be a default value or a calculated average speed of the target vehicle), the distance traveled by the target vehicle since the target image was received may be determined, and then the current position of the target vehicle may be predicted based on the position of the monitoring device capturing the target image, the distance traveled by the target vehicle, and the destination.
When the signal lamp adjusting device can communicate with the target vehicle and the target vehicle is provided with the positioning device, the signal lamp adjusting device can also determine the current position of the target vehicle through the positioning of the positioning device.
After the current position of the target vehicle is determined, the time length of the target vehicle entering and leaving the target road section from the current position can be further determined according to the distance between the current position and the target road section and the speed of the target vehicle.
The first time length required for completely releasing the vehicles on the target road section at the current time refers to the time length required for enabling all the vehicles on the target road section to leave the target road section at the current time, namely, no vehicle runs on the target road section after the first time length from the current time.
The target road section can be a road section on a path to be traveled, which has many vehicles at ordinary times and is easy to cause congestion, and can also be a road section to which the target vehicle is about to drive.
In step S110, a first time duration corresponding to one target road segment may be obtained, or first time durations corresponding to a plurality of target road segments may be obtained, and when the first time durations corresponding to the plurality of target road segments are obtained, the subsequent steps are respectively performed for each target road segment. When the first time length corresponding to each of the target road sections is obtained, the first time length corresponding to each of all the road sections which are not driven on the path to be driven is specifically obtained.
And when the target signal lamps are in a passing state, any vehicle can leave the target road section.
For convenience of explanation, the following description is given with reference to the first time length of the step S110 of obtaining one target link.
S120: and in response to the first time period meeting the preset requirement, adjusting the target signal lamp corresponding to the target road section to be in a passing state, wherein the passing state is used for indicating that the target vehicle leaves the target road section.
If the first time length corresponding to the target road section meets the preset requirement, it is indicated that a traffic jam may occur on the target road section, or when the target vehicle travels on the target road section, the traffic jam may occur, which affects the efficiency of the target vehicle passing through the target road section.
It can be understood that if the first time length corresponding to the target road segment does not meet the preset requirement, no action is performed.
From the above, the first duration required for completely releasing the vehicle on the target road section is obtained, and when the first duration is detected to meet the preset requirement, it is determined that the vehicle on the target road section may influence the target vehicle to pass through the target road section, so that the target signal lamp corresponding to the target road section is set to be in a passing state, the vehicle on the target road section is evacuated, and the subsequent target vehicle can be guaranteed to smoothly pass through the target road section.
In order to evacuate the running vehicles as soon as possible, the corresponding target signal lamps are set to be in a passing state, meanwhile, the target vehicles can be subjected to advance notice processing, and specifically, prompt signals are sent out on the corresponding target road sections to prompt the target vehicles to arrive.
The prompt signal may be a prompt signal sent by a speaker or a prompt signal sent by a target signal lamp. For example, a prompt signal of "an emergency vehicle is about to arrive and please avoid ahead" is played by a loudspeaker arranged on the corresponding target road section, or the corresponding target signal lamp is enabled to flash alternately while a green light is turned on to prompt that the vehicle can pass.
In this embodiment, step S120 specifically includes: and responding to the first time period meeting the preset requirement, and setting the corresponding target signal lamp to be in a passing state until the target vehicle leaves the target road section.
Specifically, in order to determine that the vehicle on the target road section does not influence the target vehicle to pass through the target road section, after the target signal lamp corresponding to the target road section is set to be in a passing state, the target signal lamp is kept in the passing state until the target vehicle leaves the target road section. That is, as long as it is detected that the first duration corresponding to the target road segment meets the preset requirement, the target signal lamp corresponding to the target road segment is always in the passing state before the target vehicle leaves the target road segment.
In other embodiments, of course, when the target road segment whose first duration meets the preset requirement is farther from the current position of the target vehicle, if the target signal lamp corresponding to the target road segment is set to the passing state all the time, the traffic pressure of other road segments may be increased, so that the corresponding target signal lamp may be set to the passing state first, and then when the first duration corresponding to the target road segment does not meet the preset requirement, the corresponding target signal lamp is restored to the normal state, and if it is subsequently detected that the first duration corresponding to the target road segment meets the preset requirement, the corresponding target signal lamp is set to the passing state.
In this embodiment, after setting the target signal lamp of the target road segment to the traffic state and the target vehicle leaves the target road segment, in order to recover the traffic, the signal lamp adjusting method further includes:
(a) and responding to the target vehicle leaving the target road section, and acquiring the number of vehicles at each intersection of the target road intersection corresponding to the target road section, wherein the target road intersection corresponding to the target road section is the road intersection which is reached first after the vehicle leaves the target road section.
(b) And adjusting the signal lamps corresponding to the target road junction according to the number of vehicles at each intersection of the target road junction.
The road intersection refers to an intersection of more than two roads in different directions. An intersection at a junction refers to the entrance of a road to the junction, for example, in conjunction with fig. 2, a cross-shaped junction includes 4 intersections, which are denoted by reference numerals 1, 2, 3, and 4, respectively.
And the target road intersection corresponding to the target road section is the road intersection which is reached firstly after the vehicle leaves the target road section.
After the number of vehicles at each intersection at the target road intersection is obtained, the vehicles at the intersection with the most vehicles can be preferentially evacuated by adjusting the signal lamps corresponding to the target road intersection.
The number of vehicles at each intersection can be acquired through images acquired by the monitoring equipment.
Referring to fig. 3, in the present embodiment, step S110 includes:
s111: and acquiring the vehicle flow of at least one target intersection at a target road junction corresponding to the target road section at the current moment, wherein the target road junction corresponding to the target road section is the road junction which is reached first after the vehicle leaves the target road section.
The target road intersection corresponding to the target road section is the road intersection which is reached first after the vehicle leaves the target road section, and it can be understood that all vehicles leaving the target road section will tend to pass through the target road section intersection corresponding to the target road section.
At least one target intersection at the target road intersection corresponding to the target road section may include all intersections at the target road intersection, or may include only a part of preset intersections at the target road intersection.
The traffic flow of the target intersection can be acquired through the images acquired by the monitoring equipment.
S112: and determining a first duration corresponding to the target road section according to the traffic flow corresponding to the target road section.
Since all vehicles leaving the target road section tend to pass through the target road section intersection corresponding to the target road section, the vehicle traffic flow of the target road section influences the vehicle passing time on the target road section, and further the first time length corresponding to the target road section can be determined according to the vehicle traffic flow of at least one target road section corresponding to the target road section.
In an application scenario, the specific process of determining the first duration according to the traffic flow corresponding to the target road segment in step S112 includes: and bringing the traffic flow corresponding to the target road section into a multi-item fitting function f (x), thereby obtaining the first duration corresponding to the target road section. Wherein, the multiple fitting functions f (x) can be fitted by the statistically collected traffic flow data.
In another application scenario, in order to improve the accuracy of determining the first duration, referring to fig. 4, the step S112 of determining the first duration includes:
s1121: and determining a second time length corresponding to the target road section according to the traffic flow corresponding to the target road section.
The traffic flow corresponding to the target road section can be brought into the multiple fitting functions f (x), so that the second duration corresponding to the target road section is obtained.
S1122: and summing the second time length corresponding to the target road section and the corresponding reserved time to obtain the first time length corresponding to the target road section.
For example, in one application scenario, the farther the target road section is from the current position of the target vehicle, the longer the corresponding reserved time is, and in another application scenario, the reserved time corresponding to each target road section is 30s or 1 minute set by the designer according to the actual situation.
In another embodiment, the step of obtaining the first duration corresponding to the target road segment may further include: and acquiring a first duration simultaneously corresponding to the target road section and the current moment.
The method comprises the steps of storing a corresponding relation among a target road section, a time period and a first time length in advance, wherein the first time lengths of the target road section in different time periods are different. For example, in the morning and evening rush hour period, the first duration corresponding to the target road segment is greater than the first duration corresponding to the target road segment in the flat peak period.
When step S110 is executed, a time period of the current time is determined, and then a first time length corresponding to the target road segment in the time period is searched. The corresponding relation among the target road section, the time period and the first duration can be obtained according to the statistics of the traffic flow data collected in advance.
In this embodiment, the preset requirement in step S120 includes that the first time length is less than a corresponding third time length, and the corresponding third time length is a time length required by the target vehicle to enter the target road segment corresponding to the first time length from the current position, or a time length required by the target vehicle to leave the target road segment corresponding to the first time length from the current position.
When the corresponding third time length is the time length required by the target vehicle to enter the target road section corresponding to the first time length from the current position, if the first time length corresponding to the target road section is less than the corresponding third time length, the situation that if the current situation is kept is explained, when the target vehicle enters the target road section, the vehicle on the target road section does not completely pass through, but the vehicle running on the target vehicle may influence the target vehicle to pass through the target road section, so when the first time length corresponding to the target road section is less than the corresponding third time length, the target signal lamp corresponding to the target road section is set to be in a passing state.
It should be noted that, if the target vehicle has already driven into the target road segment, the acquired third time length required for the target road segment to drive into the target road segment from the current position is zero.
When the corresponding third time length is the time length required by the target vehicle to drive away from the target road section corresponding to the first time length from the current position, if the first time length corresponding to the target road section is less than the corresponding third time length, the situation that the current situation is kept is explained, when the target vehicle runs to the exit of the target road section, the vehicle on the target road section does not completely pass through, traffic jam is likely to be caused, and therefore when the first time length corresponding to the target road section is less than the corresponding third time length, the target signal lamp corresponding to the target road section is set to be in a traffic state.
For the determination process of the third duration, reference may be made to the above related contents, which are not described herein again.
In other embodiments, the third time period may also be a fixed value set by the operator according to actual conditions.
In the present embodiment, after detecting that the target vehicle enters the target road segment, in order to ensure that the target vehicle can leave the target road segment in the shortest time, the target signal lamp corresponding to the target road segment is set to be in a traffic state. That is, when the target vehicle travels on the target link, the target signal light of the target link is always in a traffic state.
In other embodiments, only when the first time meets the requirement, the target signal lamp of the corresponding target road segment may be set to the traffic state, and it is not necessary to detect whether the target vehicle has driven into the target road segment.
Referring to fig. 5, fig. 5 is a schematic structural diagram of an embodiment of a signal lamp adjusting device according to the present application. The signal lamp adjusting device 200 includes a processor 210, a memory 220, and a communication circuit 230, wherein the processor 210 is coupled to the memory 220 and the communication circuit 230, respectively, the memory 220 stores program data, and the processor 210 implements the steps in the method according to any of the above embodiments by executing the program data in the memory 220, wherein detailed steps can refer to the above embodiments and are not described herein again.
The signal light adjusting device 200 may be any device with algorithm processing capability, such as a computer and a mobile phone, and is not limited herein.
Referring to fig. 6, fig. 6 is a schematic structural diagram of an embodiment of a signal lamp adjusting device according to the present application. The signal lamp adjusting device 300 includes an obtaining module 310 and an adjusting module 320 connected to each other.
The obtaining module 310 is configured to obtain first durations required for completely releasing vehicles on a target road segment at a current time, where the target road segment is on a path to be traveled by the target vehicle.
The adjusting module 320 is configured to adjust a target signal lamp corresponding to the target road segment to a passing state in response to the first duration meeting the preset requirement, where the passing state is used to indicate that the target vehicle leaves the target road segment.
In an embodiment, the obtaining module 310 is specifically configured to: the method comprises the steps of obtaining the vehicle flow of at least one target intersection at a target road junction corresponding to a target road section at the current moment, wherein the target road junction corresponding to the target road section is the road junction which is reached first after a vehicle leaves the target road section; and determining a first duration corresponding to the target road section according to the traffic flow corresponding to the target road section.
In an embodiment, the obtaining module 310 is specifically configured to: determining a second time length corresponding to the target road section according to the traffic flow corresponding to the target road section; and summing the second time length corresponding to the target road section and the corresponding reserved time to obtain the first time length corresponding to the target road section.
In one embodiment, the preset requirement includes that the first time length is shorter than a corresponding third time length, and the corresponding third time length is a time length required by the target vehicle to enter the target road section from the current position, or a time length required by the target vehicle to leave the target road section from the current position.
In one embodiment, the adjusting module 320 is further configured to: and responding to the target vehicle entering the target road section, and setting a target signal lamp corresponding to the target road section to be in a passing state.
In one embodiment, the adjusting module 320 is further configured to: and responding to the first time period meeting the preset requirement, and adjusting the target signal lamp to be in a passing state until the target vehicle leaves the target road section.
In one embodiment, the adjusting module 320 is further configured to: responding to the target vehicle leaving the target road section, acquiring the vehicle quantity of each intersection of the target road intersection corresponding to the target road section, wherein the target road intersection corresponding to the target road section is the road intersection which is reached first after the vehicle leaves the target road section; and adjusting the signal lamps corresponding to the target road junction according to the number of vehicles at each intersection of the target road junction.
In one embodiment, the signal light adjusting device 300 further includes a prompting module for sending a prompting signal on the target road section to prompt the target vehicle to arrive at the same time when the adjusting module 320 sets the target signal light corresponding to the target road section to the traffic state.
In an embodiment, the obtaining module 310 is further configured to: predicting the current position of the target vehicle according to the latest target image of the target vehicle acquired by the monitoring equipment; and planning a path to be traveled according to the current position and the destination of the target vehicle.
The signal light adjusting device 300 may be any device with algorithm processing capability, such as a computer and a mobile phone, and is not limited herein. The signal lamp adjusting device 300 performs the method steps in any of the above embodiments when operating, and the detailed steps can be referred to the above related contents, which are not described herein again.
Referring to fig. 7, fig. 7 is a schematic structural diagram of an embodiment of a computer-readable storage medium according to the present application. The computer-readable storage medium 400 stores a computer program 410, the computer program 410 being executable by a processor to implement the steps of any of the methods described above.
The computer-readable storage medium 400 may be a device that can store the computer program 410, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk, or may be a server that stores the computer program 410, and the server may send the stored computer program 410 to another device for operation, or may self-operate the stored computer program 410.
The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.
Claims (11)
1. A method of signal conditioning, the method comprising:
acquiring a first time length required for completely releasing a vehicle on a target road section at the current moment, wherein the target road section is positioned on a path to be traveled of the target vehicle;
and responding to the first time length meeting a preset requirement, and adjusting a target signal lamp corresponding to the target road section to be in a passing state, wherein the passing state is used for indicating that the target vehicle drives away from the target road section.
2. The method of claim 1, wherein the step of obtaining the first time period required for the vehicle on the target road segment to be completely cleared at the current time comprises:
acquiring the vehicle flow of at least one target intersection at a target road junction corresponding to the target road section at the current moment, wherein the target road junction corresponding to the target road section is the road junction which is reached first after a vehicle leaves the target road section;
and determining the first duration corresponding to the target road section according to the traffic flow corresponding to the target road section.
3. The method according to claim 2, wherein the step of determining the first duration corresponding to the target road segment according to the traffic flow corresponding to the target road segment comprises:
determining a second time length corresponding to the target road section according to the traffic flow corresponding to the target road section;
and summing the second time length corresponding to the target road section and the corresponding reserved time to obtain the first time length corresponding to the target road section.
4. The method according to claim 1, wherein the preset requirement comprises that the first time period is less than a corresponding third time period, and the corresponding third time period is a time period required by the target vehicle to enter the target road segment from a current position or a time period required by the target vehicle to leave the target road segment from the current position.
5. The method of claim 1, further comprising:
and responding to the target vehicle entering the target road section, and setting the target signal lamp corresponding to the target road section to be in a passing state.
6. The method according to claim 1, wherein the step of adjusting the target signal lamp corresponding to the target road section to a passing state in response to the first time period satisfying a preset requirement comprises:
in response to the first time period satisfying the preset requirement, the target signal lamp is adjusted to a traffic state until the target vehicle leaves the target road section.
7. The method according to claim 6, wherein after the adjusting the target signal lamp corresponding to the target road segment to the traffic state, further comprising:
responding to the target vehicle leaving the target road section, and acquiring the number of vehicles at each intersection of a target road junction corresponding to the target road section, wherein the target road junction corresponding to the target road section is the road junction which is reached first after the vehicle leaves the target road section;
and adjusting the signal lamps corresponding to the target road junction according to the number of vehicles at each intersection of the target road junction.
8. The method according to claim 1, wherein, while setting the target signal lamp corresponding to the target road segment to the traffic state, the method further comprises:
and sending a prompt signal on the target road section to prompt that the target vehicle is about to arrive.
9. The method according to claim 1, wherein the step of obtaining the path to be traveled comprises:
predicting the current position of the target vehicle according to the latest target image of the target vehicle acquired by monitoring equipment;
and planning the path to be traveled according to the current position and the destination of the target vehicle.
10. A signal conditioning device, characterized in that it comprises a processor, a memory and a communication circuit, the processor being coupled to the memory and the communication circuit, respectively, the memory having stored therein program data, the processor implementing the steps of the method according to any one of claims 1 to 9 by executing the program data in the memory.
11. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program which is executable by a processor to implement the steps in the method according to any of claims 1-9.
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