CN115798231A - Traffic signal lamp control method, equipment and medium - Google Patents
Traffic signal lamp control method, equipment and medium Download PDFInfo
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Abstract
The embodiment of the application discloses a traffic signal lamp control method, equipment and a medium. Respectively acquiring traffic flow information of a plurality of roads corresponding to the current intersection to be detected through a plurality of network devices arranged around the traffic signal lamp; the traffic flow information at least comprises the number of mobile terminals accessed to each network device and the number of special vehicles accessed to each network device; receiving traffic flow information respectively sent by a plurality of network devices, and adjusting the second reading condition of traffic signal lamps arranged at an intersection to be detected based on the number of mobile terminals accessed to the network devices under the condition that special vehicle information does not exist in the traffic flow information; and under the condition that special vehicle information exists in the traffic flow information, adjusting the second reading condition of the traffic signal lamp of the intersection to be detected based on the current display state of the traffic signal lamp and a preset special vehicle passing mode. By the method, the vehicle passing efficiency is improved.
Description
Technical Field
The present application relates to the field of traffic control technologies, and in particular, to a method, a device, and a medium for controlling a traffic signal lamp.
Background
With the development of the times and the improvement of the living standard of people, the individual automobile enters thousands of households. The number of cars carried on urban roads is increasing, and thus, the problem of road congestion is also increasing. The traditional method for reading the second by presetting the program adopted by the signal lamp has the problem of great time waste, and in extreme cases, even in one direction, no vehicle exists, but a great amount of green lamp second reading time is still reserved in the direction.
Meanwhile, when the special vehicle executes an emergency rescue task, the special vehicle cannot pass through the intersection preferentially. Only by means of manual intervention of vehicle owners to give way voluntarily and traffic policemen, not only manpower is consumed, but also time is consumed for coordination under the condition that the vehicle owners do not want to give way. Meanwhile, the red light passes through the intersection, and the risk of traffic accidents is high. Therefore, the existing signal lamp control mode can cause great waste of effective passing time.
Disclosure of Invention
The embodiment of the application provides a traffic signal lamp control method, equipment and a medium, which are used for solving the following technical problems: the traditional signal lamp adopts a program preset reading second mode, so that the great waste of effective passing time is easily caused.
The embodiment of the application adopts the following technical scheme:
the embodiment of the application provides a traffic signal lamp control method. Respectively acquiring traffic flow information of a plurality of roads corresponding to the current intersection to be detected through a plurality of network devices arranged around the traffic signal lamp; the traffic flow information at least comprises the number of mobile terminals accessed to each network device and the number of special vehicles accessed to each network device; receiving traffic flow information respectively sent by a plurality of network devices, and adjusting the second reading condition of traffic signal lamps arranged at an intersection to be detected based on the number of mobile terminals accessed to the network devices under the condition that no special vehicle information exists in the traffic flow information; and under the condition that the special vehicle information exists in the traffic flow information, adjusting the second reading condition of the traffic signal lamp of the intersection to be detected based on the current display state of the traffic signal lamp and a preset special vehicle passing mode.
According to the embodiment of the application, the traffic flow information of a plurality of roads corresponding to the intersection to be detected is acquired, and the number of vehicles corresponding to each road can be acquired in real time, so that the second reading time of the traffic signal lamp is adjusted according to the number of the traffic flow, the second reading time is matched with the number of the current vehicles, and the waiting time of the vehicles is reduced. Secondly, the driving position of the special vehicle is determined by acquiring the vehicle information of the special vehicle, so that the second reading time adjustment is carried out on the traffic signal lamp, the mode that the special vehicle drives preferentially is started, and the special vehicle can smoothly execute the emergency rescue task.
In an implementation manner of the present application, receiving traffic flow information respectively sent by a plurality of network devices specifically includes: acquiring device identifications corresponding to a plurality of network devices respectively; and grouping the received traffic flow information based on the equipment identification so as to determine the traffic flow information of a plurality of roads corresponding to the current intersection to be detected based on the traffic flow information respectively corresponding to each group.
In an implementation manner of the present application, the plurality of network devices are respectively disposed at intervals on a plurality of roads corresponding to a current intersection to be detected, and the device identifiers of the plurality of network devices disposed on the same road are the same.
In an implementation manner of the present application, after receiving traffic flow information sent by each of the plurality of network devices, the method further includes: sending a control command to a traffic signal lamp through an SDN controller; the control command comprises a traditional operation command and a control operation command; under the condition that the control command is a traditional operation command, controlling the traffic signal lamp to operate according to a preset second reading rule; and under the condition that the control command is a control operation command, adjusting the second reading time of the traffic signal lamp based on the traffic flow information.
In an implementation manner of the present application, under the condition that no special vehicle information exists in the traffic flow information, the second reading condition of the traffic signal lamps arranged at the intersection to be detected is adjusted based on the number of the mobile terminals accessing the network device, and the method specifically includes: under the condition that no special vehicle information exists in the traffic flow information, determining the traffic flow proportion corresponding to each road based on the number of the mobile terminals corresponding to each road; comparing the traffic flow proportion with a preset traffic signal control information table to determine a traffic signal lamp adjusting scheme corresponding to the traffic flow proportion based on the preset traffic signal control information table; the preset traffic signal management and control information table comprises various traffic flow proportions and traffic signal lamp adjusting schemes corresponding to the various traffic flow proportions.
In an implementation manner of the present application, when there is special vehicle information in the traffic flow information, based on the current display state of the traffic signal lamp and a preset special vehicle passing mode, the second reading condition of the traffic signal lamp at the intersection to be detected is adjusted, which specifically includes: under the condition that the special vehicle information exists in the traffic flow information, determining a driving direction corresponding to the special vehicle based on the position information of the network equipment receiving the characteristic vehicle information; acquiring the current display state of a traffic signal lamp in the driving direction; and comparing the current display state with a preset special vehicle mode to adjust the second reading condition of the traffic signal lamp of the intersection to be detected based on the comparison result.
In an implementation manner of the present application, the current display state is compared with a preset special vehicle mode, so as to adjust the second reading condition of the traffic signal lamp of the intersection to be detected based on the comparison result, which specifically includes: under the condition that the current display state is a red light, the red light display time is shortened and adjusted based on a preset special vehicle mode, after the display state is converted into a green light, traffic flow information respectively corresponding to a plurality of network devices on the current road is obtained in real time, and under the condition that no special vehicle information exists in the traffic flow information, the second reading time of a traffic signal lamp is adjusted again based on the traffic flow information; and under the condition that the current display state is a green light, prolonging and adjusting the display time of the green light based on a preset special vehicle mode, acquiring traffic flow information corresponding to a plurality of network devices on the current road in real time, and under the condition that no special vehicle information exists in the traffic flow information, readjusting the second reading time of the traffic signal lamp based on the traffic flow information.
In an implementation manner of the present application, before the vehicle flow information of a plurality of roads corresponding to a current intersection to be detected is respectively collected through a plurality of network devices arranged around a traffic light, the method further includes: and storing the mac addresses respectively corresponding to the special vehicles through the SDN controller, so as to identify the received information of the special vehicles through the stored mac addresses.
The embodiment of the application provides a traffic signal lamp controlgear, includes: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to cause the at least one processor to: respectively acquiring traffic flow information of a plurality of roads corresponding to the current intersection to be detected through a plurality of network devices arranged around the traffic signal lamp; the traffic flow information at least comprises the number of mobile terminals accessed to each network device and the number of special vehicles accessed to each network device; receiving traffic flow information respectively sent by a plurality of network devices, and adjusting the second reading condition of traffic signal lamps arranged at an intersection to be detected based on the number of mobile terminals accessed to the network devices under the condition that no special vehicle information exists in the traffic flow information; and under the condition that the special vehicle information exists in the traffic flow information, adjusting the second reading condition of the traffic signal lamp of the intersection to be detected based on the current display state of the traffic signal lamp and a preset special vehicle passing mode.
A non-volatile computer storage medium provided in an embodiment of the present application stores computer-executable instructions, and the computer-executable instructions are configured to: respectively acquiring traffic flow information of a plurality of roads corresponding to the current intersection to be detected through a plurality of network devices arranged around the traffic signal lamp; the traffic flow information at least comprises the number of mobile terminals accessed to each network device and the number of special vehicles accessed to each network device; receiving traffic flow information respectively sent by a plurality of network devices, and adjusting the second reading condition of traffic signal lamps arranged at an intersection to be detected based on the number of mobile terminals accessed to the network devices under the condition that no special vehicle information exists in the traffic flow information; and under the condition that the special vehicle information exists in the traffic flow information, adjusting the second reading condition of the traffic signal lamp of the intersection to be detected based on the current display state of the traffic signal lamp and a preset special vehicle passing mode.
The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects: according to the embodiment of the application, the traffic flow information of a plurality of roads corresponding to the intersection to be detected is acquired, and the number of vehicles corresponding to each road can be acquired in real time, so that the second reading time of the traffic signal lamp is adjusted according to the number of the traffic flow, the second reading time is matched with the number of the current vehicles, and the waiting time of the vehicles is reduced. Secondly, the driving position of the special vehicle is determined by acquiring the vehicle information of the special vehicle, so that the second reading time of the traffic signal lamp is adjusted, the mode that the characteristic vehicle drives preferentially is started, and the special vehicle can smoothly execute the emergency rescue task.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without any creative effort. On the attachment
In the figure:
fig. 1 is a structural diagram of an SDN controller module according to an embodiment of the present disclosure;
fig. 2 is a structural diagram of a memory module according to an embodiment of the present disclosure;
fig. 3 is a structural diagram of a traffic signal lamp management and control module according to an embodiment of the present disclosure;
fig. 4 is a block diagram of a network device module according to an embodiment of the present disclosure;
fig. 5 is an overall structural diagram of a traffic signal lamp control system according to an embodiment of the present disclosure;
fig. 6 is a flowchart of a traffic signal light control method according to an embodiment of the present disclosure;
fig. 7 is a diagram of a wireless signal radiation range of a network device according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of a traffic signal lamp control device according to an embodiment of the present application.
Detailed Description
The embodiment of the application provides a traffic signal lamp control method, equipment and a medium.
In order to make those skilled in the art better understand the technical solutions in the present application, 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 of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any inventive step based on the embodiments of the present disclosure, shall fall within the scope of protection of the present application.
With the development of the times and the improvement of the living standard of people, the individual automobile enters thousands of households. The number of cars carried on urban roads is increasing, and thus, the problem of road congestion is also increasing. The traditional method for reading the second by presetting the program adopted by the signal lamp has the problem of great time waste, and in extreme cases, even in one direction, no vehicle exists, but a great amount of green lamp second reading time is still reserved in the direction.
Meanwhile, when the special vehicle executes an emergency rescue task, the special vehicle cannot pass through the intersection preferentially. Only by means of manual intervention of vehicle owners to give way voluntarily and traffic policemen, not only manpower is consumed, but also time is consumed for coordination under the condition that the vehicle owners do not want to give way. Meanwhile, the red light passes through the intersection, and the risk of traffic accidents is high. And under the condition that vehicles are more at certain intersections, the vehicle owners at the rear positions of the motorcade cannot know the condition of traffic signal lamp transformation in advance in time. The user needs to wait for the response after the front vehicle is started, so that the response time of the vehicle owner is accumulated, and the effective passing time is greatly wasted.
In order to solve the above problems, embodiments of the present application provide a method, an apparatus, and a medium for controlling a traffic signal lamp. The traffic flow information of a plurality of roads corresponding to the intersection to be detected is acquired, the number of vehicles corresponding to each road can be acquired in real time, and therefore the second reading time of the traffic signal lamp is adjusted according to the number of the traffic flow, the second reading time of the traffic signal lamp is matched with the number of the current vehicles, and the waiting time of the vehicles is reduced. Secondly, the driving position of the special vehicle is determined by acquiring the vehicle information of the special vehicle, so that the second reading time of the traffic signal lamp is adjusted, the mode that the characteristic vehicle drives preferentially is started, and the special vehicle can smoothly execute the emergency rescue task.
The technical solutions proposed in the embodiments of the present application are described in detail below with reference to the accompanying drawings.
Fig. 1 is a structural diagram of an SDN controller module according to an embodiment of the present application. As shown in fig. 1, the SDN controller module includes a storage information interaction module, a northbound interface, an SDN control module, and a network device interaction module. The SDN controller acquires the information of the number of terminals wirelessly connected to the network equipment through other protocols such as a snmp protocol and the like which can monitor the network equipment, and calculates and obtains the number of the equipment terminals in which direction is more.
Fig. 2 is a structural diagram of a memory module according to an embodiment of the present application. As shown in fig. 2, the storage module includes a plurality of memories and an information exchange component, and information is transmitted and stored with other modules through the information exchange component.
Fig. 3 is a structural diagram of a traffic signal lamp management and control module according to an embodiment of the present application. As shown in fig. 3, the traffic signal lamp management and control module includes a plurality of functions of command issuing, controller interaction, conventional control, special vehicle control, and signal lamp second reading rule to external public service. The traffic flow information acquired by the network equipment is interactively acquired through the controller, an instruction is issued according to the traffic flow information to select to enter a conventional control mode or a special vehicle control mode, and the second reading of the signal lamp is planned to be externally disclosed, so that a waiting vehicle owner and a waiting pedestrian can acquire the second reading condition of the signal lamp in real time, and the starting time is shortened.
Fig. 4 is a block diagram of a network device module according to an embodiment of the present disclosure. As shown in fig. 4, the network device has three layers of functions, namely, a function of running a dynamic routing protocol and a wireless function. It can be a single physical device or a combination of physical devices to achieve a network device with the function. The network equipment is controlled by the SDN controller and is connected with the traffic signal lamp control server. And the SDN controller can issue a command to control the on or off of the connected interface in a mode of SSH and the like so as to control the signal lamp to operate in a traditional mode or a mode of receiving management and control.
Fig. 5 is an overall structural diagram of a traffic signal lamp control system according to an embodiment of the present application. As shown in fig. 5, a conventional second reading program is preset in the traffic light, so that the traffic light is prevented from being incapable of working due to the fact that the management and control information cannot be acquired due to equipment failure. And secondly, the network equipment (hereinafter referred to as network equipment for short) with wireless and routing functions and ceiling-sucking functions is arranged near the traffic signal lamps, is respectively connected with all signal lamps in the south, east and north directions of the intersection, and has the physical condition of transmitting the control instruction to all the signal lamps. Meanwhile, the network equipment can be communicated with the Internet, and all pedestrians waiting at the intersection and the terminals of the vehicles can also access the Internet after being wirelessly connected. The network equipment is controlled by the SDN controller and is connected with the traffic signal lamp control server. In a wired interface, the SDN controller may issue a command to control turning on or off in SSH or other manners, so as to control whether the signal lamp operates in a conventional manner or in a management and control manner.
Traffic light management may be deployed on a separate physical server or may be deployed with an SDN controller. The individual deployment may use independent physical resources dedicated to signal lamp management and is not affected after an SDN controller failure. Being deployed together facilitates management, but requires high physical device performance. The SDN controller acquires information of the number of terminals wirelessly connected to the network equipment through protocols such as an snmp protocol and the like which can monitor the network equipment, calculates and obtains more equipment terminals in which direction, and after the SDN controller interacts with the signal lamp control module, the signal lamp control module allocates a larger proportion of green light time to the direction. The terminal mac address information of the special vehicle can be recorded into the SDN controller in advance, the terminal is not started in a normal state of the special vehicle, and the terminal is started when an emergency task is executed. After the terminal is started to be wirelessly accessed into the network equipment, the SDN controller interacts with a traffic signal lamp management and control server for controlling the corresponding intersection after acquiring the mac information of the special vehicle terminal on the network equipment of the corresponding intersection, so that the management mode is converted into a special vehicle mode management mode. Meanwhile, the signal lamp control server can provide the second reading condition of the signal lamp to the outside, so that the vehicle owner can prepare in advance to shorten the starting time.
Fig. 6 is a flowchart of a traffic signal light control method according to an embodiment of the present application. As shown in fig. 6, the traffic signal light control method includes the steps of:
s101, respectively collecting traffic flow information of a plurality of roads corresponding to the current intersection to be detected through a plurality of network devices arranged around the traffic signal lamp. The traffic flow information at least comprises the number of mobile terminals accessed to each network device and the number of special vehicles accessed to each network device.
In an embodiment of the application, the plurality of network devices are respectively arranged on a plurality of roads corresponding to the current intersection to be detected at intervals, and the device identifiers of the plurality of network devices arranged on the same road are the same.
Specifically, the network equipment with the wireless and routing functions and the ceiling-mounted function is arranged near the traffic signal lamps, is respectively connected with all signal lamps in the southeast, northwest directions of the intersection, and has the physical condition of transmitting the control instruction to all the signal lamps. Fig. 7 is a diagram of a radiation range of a wireless signal of a network device according to an embodiment of the present application, where the radiation range of each network device is a circular area with a current network device as a center. It should be noted that not all network devices are depicted. The real situation is that the road junction is deployed in sequence after being spaced at a proper distance along the street according to the south and north directions of the road junction (the distance is determined according to the radiation intensity of the wireless signal of the equipment and the maximum distance which can be normally used). And after the SDN controller is managed, the devices in the same direction are named as identifiers in a unified mode.
In one embodiment of the application, mac addresses respectively corresponding to special vehicles are stored through an SDN controller, so that received special vehicle information is identified through the stored mac addresses.
Specifically, the mac address information of the terminal of the special vehicle can be recorded into the SDN controller in advance, the terminal is not started in a normal state of the special vehicle, and the terminal is started when an emergency task is executed. After the terminal wireless access network equipment is started, the SDN controller obtains mac information of a special vehicle terminal on the network equipment of the corresponding intersection, and then compares the mac information with the stored mac address to determine that the currently received mac address is a special vehicle.
S102, receiving traffic flow information sent by the network devices respectively, and adjusting the second reading condition of traffic lights arranged at the intersection to be detected based on the number of the mobile terminals accessed to the network devices under the condition that no special vehicle information exists in the traffic flow information.
In an embodiment of the present application, device identifiers corresponding to a plurality of network devices are obtained. And grouping the received traffic flow information based on the equipment identification so as to determine the traffic flow information of a plurality of roads corresponding to the current intersection to be detected based on the traffic flow information respectively corresponding to each group.
Specifically, the intersection to be detected corresponds to a plurality of roads, for example, four roads in the south, the east, the west and the north, and each road is provided with a plurality of network devices. Therefore, in order to distinguish the acquired network device information and determine the corresponding road, the device identifier corresponding to each network device needs to be acquired, and the identifiers of the plurality of network devices corresponding to each road are the same. Through the equipment identification, a plurality of traffic flow information corresponding to the same road can be determined, and therefore the final traffic flow information corresponding to each road can be determined according to the traffic flow information corresponding to each road. For example, the final traffic flow information corresponding to the current road may be obtained by adding up the acquired traffic flow information corresponding to each road.
In one embodiment of the present application, sending a control command to a traffic signal lamp by an SDN controller; the control command includes a conventional operation command and a control operation command. And under the condition that the control command is a traditional operation command, controlling the traffic signal lamp to operate according to a preset reading second rule. And under the condition that the control command is a control operation command, adjusting the second reading time of the traffic signal lamp based on the traffic flow information.
Specifically, the SDN controller may issue a command to control the turning on or off of the SDN controller in a SSH manner or the like, so as to control whether the signal lamp operates in a conventional manner or in a management and control manner. And if the traffic signal lamp is the traditional operation command, controlling the current traffic signal lamp to operate according to a preset second reading rule, namely, not performing relevant calculation on the actual traffic flow of the current intersection to be detected, and selecting the preset second reading rule no matter the traffic flow. If the traffic information is a control operation command, the number of the equipment terminals in which the network equipment is wirelessly connected is calculated and obtained based on the obtained actual traffic information, that is, the number of the terminal terminals in which the network equipment is wirelessly connected is obtained, and after the traffic information is interacted with the signal lamp control module, the signal lamp control module allocates a larger proportion of green light time to the direction. Therefore, according to the actual traffic flow condition, the longer green light passing time is started for the road with a large traffic flow, so that the waiting time of the vehicle is shortened, and the passing efficiency of the vehicle is improved.
In one embodiment of the application, when the special vehicle information does not exist in the traffic flow information, the traffic flow proportion corresponding to each road is determined based on the number of the mobile terminals corresponding to each road. Comparing the traffic flow proportion with a preset traffic signal control information table to determine a traffic signal lamp adjusting scheme corresponding to the traffic flow proportion based on the preset traffic signal control information table; the preset traffic signal control information table comprises various traffic flow proportions and traffic signal lamp adjusting schemes corresponding to the various traffic flow proportions respectively.
Specifically, under the condition that no special vehicle information exists in the traffic flow information, the second reading time of the traffic signal lamp is adjusted according to the traffic flow information of each road, and the traffic light display time of the traffic signal lamp is adjusted. And determining the ratio of the traffic flow quantity of each road according to the total number of the traffic flow quantity respectively corresponding to each road. Comparing the ratio with a preset traffic signal lamp control information table, and determining an adjusting scheme corresponding to the current ratio, wherein the adjusting scheme can be the display duration corresponding to the red light and the green light of the traffic signal lamp respectively under the condition of the current proportion.
S103, under the condition that the special vehicle information exists in the traffic flow information, the second reading condition of the traffic signal lamp of the intersection to be detected is adjusted based on the current display state of the traffic signal lamp and a preset special vehicle passing mode.
In one embodiment of the application, when the special vehicle information exists in the traffic flow information, the corresponding driving direction of the special vehicle is determined based on the position information of the network device receiving the characteristic vehicle information. And acquiring the current display state of the traffic signal lamp in the driving direction. And comparing the current display state with a preset special vehicle mode to adjust the second reading condition of the traffic signal lamp of the intersection to be detected based on the comparison result.
Specifically, under the condition that the current display state is a red light, the red light display time is shortened and adjusted based on a preset special vehicle mode, after the display state is converted into a green light, traffic flow information respectively corresponding to a plurality of network devices on the current road is obtained in real time, and under the condition that no special vehicle information exists in the traffic flow information, the second reading time of the traffic signal lamp is adjusted again based on the traffic flow information. And under the condition that the current display state is a green light, prolonging and adjusting the display time of the green light based on a preset special vehicle mode, acquiring traffic flow information corresponding to a plurality of network devices on the current road in real time, and under the condition that no special vehicle information exists in the traffic flow information, readjusting the second reading time of the traffic signal lamp based on the traffic flow information.
Specifically, the mac address information of the terminal of the special vehicle can be recorded into the SDN controller in advance, the terminal is not started in a normal state of the special vehicle, and the terminal is started when an emergency task is executed. After the network equipment is started, the terminal is wirelessly accessed to the network equipment, the SDN controller interacts with a traffic signal lamp control server for controlling a corresponding intersection after acquiring the mac information of the special vehicle terminal existing on the network equipment of the corresponding intersection, the management server is converted into a special vehicle mode management mode, if the traffic signal lamp is a red light, the red light time of the traffic signal lamp is shortened as much as possible according to the direction of the intersection represented by the network equipment connected with the special vehicle, and after the traffic signal lamp is converted into a green light, the green light is turned on for a long time until the mac information of the special vehicle terminal does not exist on the network equipment and then is recovered. And if the vehicle is green, directly increasing the green time of the vehicle until the network equipment is recovered after the mac information of the special vehicle terminal does not exist. Meanwhile, the signal lamp control server can provide the second reading condition of the signal lamp to the outside, so that the vehicle owner can prepare in advance to shorten the starting time.
According to the embodiment of the application, the device components are managed in a unified mode through sdn, the established network can be configured in a unified and centralized mode, and the device can be deployed more conveniently and more conveniently, the state of the device can be detected timely, and the damaged device can be replaced. Meanwhile, the influence of severe weather can be avoided, the required information can be normally acquired, and meanwhile, the number of pedestrians is calculated without a complex portrait recognition algorithm. The traffic efficiency of vehicles and pedestrians is improved while the corresponding algorithm is simplified.
Fig. 8 is a schematic structural diagram of a traffic signal lamp control device according to an embodiment of the present application. As shown in fig. 8, the traffic signal control apparatus includes:
at least one processor; and the number of the first and second groups,
a memory communicatively coupled to the at least one processor; wherein,
the memory stores instructions executable by the at least one processor to enable the at least one processor to:
respectively acquiring traffic flow information of a plurality of roads corresponding to the current intersection to be detected through a plurality of network devices arranged around the traffic signal lamp; the traffic flow information at least comprises the number of mobile terminals accessed to each network device and the number of special vehicles accessed to each network device;
receiving traffic flow information respectively sent by the plurality of network devices, and adjusting the reading second condition of traffic signal lamps arranged at the intersection to be detected based on the number of mobile terminals accessed to the network devices under the condition that no special vehicle information exists in the traffic flow information;
and under the condition that special vehicle information exists in the traffic flow information, adjusting the second reading condition of the traffic signal lamp of the intersection to be detected based on the current display state of the traffic signal lamp and a preset special vehicle passing mode.
An embodiment of the present application further provides a non-volatile computer storage medium storing computer-executable instructions, where the computer-executable instructions are configured to:
respectively acquiring traffic flow information of a plurality of roads corresponding to the current intersection to be detected through a plurality of network devices arranged around the traffic signal lamp; the traffic flow information at least comprises the number of mobile terminals accessed to each network device and the number of special vehicles accessed to each network device;
receiving traffic flow information respectively sent by the plurality of network devices, and adjusting the second reading condition of traffic lights arranged at the intersection to be detected based on the number of mobile terminals accessed to the network devices under the condition that special vehicle information does not exist in the traffic flow information;
and under the condition that special vehicle information exists in the traffic flow information, adjusting the second reading condition of the traffic signal lamp of the intersection to be detected based on the current display state of the traffic signal lamp and a preset special vehicle passing mode.
The embodiments in the present application are described in a progressive manner, and the same and similar parts among the embodiments can be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the embodiments of the apparatus, the device, and the nonvolatile computer storage medium, since they are substantially similar to the embodiments of the method, the description is simple, and for the relevant points, reference may be made to the partial description of the embodiments of the method.
The foregoing description of specific embodiments of the present application has been presented. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and variations of the embodiments of the present application will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. A traffic signal control method, characterized in that the method comprises:
respectively acquiring traffic flow information of a plurality of roads corresponding to the current intersection to be detected through a plurality of network devices arranged around the traffic signal lamp; the traffic flow information at least comprises the number of mobile terminals accessed to each network device and the number of special vehicles accessed to each network device;
receiving traffic flow information respectively sent by the plurality of network devices, and adjusting the reading second condition of traffic signal lamps arranged at the intersection to be detected based on the number of mobile terminals accessed to the network devices under the condition that no special vehicle information exists in the traffic flow information;
and under the condition that special vehicle information exists in the traffic flow information, adjusting the second reading condition of the traffic signal lamp of the intersection to be detected based on the current display state of the traffic signal lamp and a preset special vehicle passing mode.
2. The traffic signal lamp control method according to claim 1, wherein the receiving traffic flow information respectively sent by the plurality of network devices specifically includes:
acquiring device identifications corresponding to the plurality of network devices respectively;
and grouping the received traffic flow information based on the equipment identification, so as to determine the traffic flow information of a plurality of roads corresponding to the current intersection to be detected based on the traffic flow information respectively corresponding to each group.
3. The traffic signal lamp control method according to claim 1, wherein the plurality of network devices are respectively disposed at intervals on a plurality of roads corresponding to the current intersection to be detected, and the device identifiers of the plurality of network devices disposed on the same road are the same.
4. The traffic signal light control method according to claim 1, wherein after receiving the traffic flow information respectively transmitted by the plurality of network devices, the method further comprises:
sending a control command to the traffic signal lamp through an SDN controller; the control command comprises a traditional operation command and a control operation command;
under the condition that the control command is a traditional operation command, controlling the traffic signal lamp to operate according to a preset second reading rule;
and under the condition that the control command is a control operation command, adjusting the second reading time of the traffic signal lamp based on the traffic flow information.
5. The method for controlling a traffic signal lamp according to claim 1, wherein when no special vehicle information exists in the traffic flow information, the second reading condition of the traffic signal lamp at the intersection to be detected is adjusted based on the number of the mobile terminals accessing the network device, and specifically includes:
under the condition that no special vehicle information exists in the traffic flow information, determining the traffic flow proportion corresponding to each road based on the number of the mobile terminals corresponding to each road;
comparing the traffic flow proportion with a preset traffic signal control information table to determine a traffic signal lamp adjusting scheme corresponding to the traffic flow proportion based on the preset traffic signal control information table; the preset traffic signal management and control information table comprises a plurality of traffic flow proportions and traffic signal lamp adjusting schemes corresponding to the traffic flow proportions respectively.
6. The traffic signal lamp control method according to claim 1, wherein when the traffic flow information includes special vehicle information, the second reading condition of the traffic signal lamp at the intersection to be detected is adjusted based on the current display state of the traffic signal lamp and a preset special vehicle passing mode, and specifically includes:
under the condition that special vehicle information exists in the traffic flow information, determining a driving direction corresponding to the special vehicle based on the position information of the network equipment receiving the characteristic vehicle information;
acquiring the current display state of the traffic signal lamp in the driving direction;
and comparing the current display state with the preset special vehicle mode to adjust the second reading condition of the traffic signal lamp of the intersection to be detected based on the comparison result.
7. The traffic signal lamp control method according to claim 6, wherein the comparing the current display state with the preset special vehicle mode to adjust the second reading condition of the traffic signal lamp of the intersection to be detected based on the comparison result specifically comprises:
under the condition that the current display state is a red light, the red light display time is shortened and adjusted based on the preset special vehicle mode, after the display state is converted into a green light, traffic flow information respectively corresponding to a plurality of network devices on the current road is obtained in real time, and under the condition that no special vehicle information exists in the traffic flow information, the second reading time of the traffic signal lamp is adjusted again based on the traffic flow information;
and under the condition that the current display state is a green light, prolonging and adjusting the display time of the green light based on the preset special vehicle mode, acquiring traffic flow information respectively corresponding to a plurality of network devices on the current road in real time, and under the condition that no special vehicle information exists in the traffic flow information, readjusting the second reading time of the traffic signal lamp based on the traffic flow information.
8. The traffic signal lamp control method according to claim 1, wherein before the collecting of the traffic flow information of the plurality of roads corresponding to the intersection to be detected respectively by the plurality of network devices arranged around the traffic signal lamp, the method further comprises:
the method comprises the steps that the corresponding mac addresses of the special vehicles are stored through an SDN controller, and received special vehicle information is identified through the stored mac addresses.
9. A traffic signal control apparatus comprising:
at least one processor; and the number of the first and second groups,
a memory communicatively coupled to the at least one processor; wherein,
the memory stores instructions executable by the at least one processor to enable the at least one processor to:
respectively acquiring traffic flow information of a plurality of roads corresponding to the current intersection to be detected through a plurality of network devices arranged around the traffic signal lamp; the traffic flow information at least comprises the number of mobile terminals accessed to each network device and the number of special vehicles accessed to each network device;
receiving traffic flow information respectively sent by the plurality of network devices, and adjusting the reading second condition of traffic signal lamps arranged at the intersection to be detected based on the number of mobile terminals accessed to the network devices under the condition that no special vehicle information exists in the traffic flow information;
and under the condition that special vehicle information exists in the traffic flow information, adjusting the second reading condition of the traffic signal lamp of the intersection to be detected based on the current display state of the traffic signal lamp and a preset special vehicle passing mode.
10. A non-transitory computer storage medium storing computer-executable instructions configured to:
respectively acquiring traffic flow information of a plurality of roads corresponding to the current intersection to be detected through a plurality of network devices arranged around the traffic signal lamp; the traffic flow information at least comprises the number of mobile terminals accessed to each network device and the number of special vehicles accessed to each network device;
receiving traffic flow information respectively sent by the plurality of network devices, and adjusting the reading second condition of traffic signal lamps arranged at the intersection to be detected based on the number of mobile terminals accessed to the network devices under the condition that no special vehicle information exists in the traffic flow information;
and under the condition that special vehicle information exists in the traffic flow information, adjusting the second reading condition of the traffic signal lamp of the intersection to be detected based on the current display state of the traffic signal lamp and a preset special vehicle passing mode.
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