CN115050196A

CN115050196A - Traffic control method, device, equipment and storage medium

Info

Publication number: CN115050196A
Application number: CN202210210888.6A
Authority: CN
Inventors: 贾文丽; 孟新意
Original assignee: Apollo Zhilian Beijing Technology Co Ltd; Apollo Zhixing Technology Guangzhou Co Ltd
Current assignee: Apollo Zhilian Beijing Technology Co Ltd; Apollo Zhixing Technology Guangzhou Co Ltd
Priority date: 2022-03-04
Filing date: 2022-03-04
Publication date: 2022-09-13

Abstract

The disclosure provides a traffic control method, a traffic control device, traffic control equipment and a storage medium, and relates to the field of intelligent traffic, in particular to the field of cloud computing. The specific implementation scheme is as follows: responding to a navigation protection request, acquiring the running parameters of a target vehicle and the signal lamp state parameters of a target intersection, wherein the navigation protection request is used for requesting the target vehicle to pass through the green wave of the target intersection; and generating a signal lamp control strategy according to the driving parameters and the signal lamp state parameters, wherein the signal lamp control strategy is used for controlling the state of a signal lamp of the target intersection. According to the technology disclosed by the invention, the green wave passing of the target vehicle to the target intersection can be realized, and the informatization level of urban road traffic management is effectively improved.

Description

Traffic control method, device, equipment and storage medium

Technical Field

The present disclosure relates to the field of intelligent transportation technologies, and in particular, to a method, an apparatus, a device, and a storage medium for traffic control.

Background

In the related art, for a road navigation scene of a special vehicle, a Global Positioning System (GPS) device and a monitoring System need to be built in advance, and a traffic police worker manually controls a signal lamp System subsequently, so that the defects that the System building cost is high, the manual operation cannot be performed for Global deployment, and time and labor are wasted exist.

Disclosure of Invention

The disclosure provides a traffic control method, apparatus, device and storage medium.

According to an aspect of the present disclosure, there is provided a traffic control method including:

responding to a navigation protection request, acquiring the driving parameters of a target vehicle and the signal lamp state parameters of the target intersection, wherein the navigation protection request is used for requesting the target vehicle to pass through the green wave of the target intersection;

and generating a signal lamp control strategy according to the driving parameters and the signal lamp state parameters, wherein the signal lamp control strategy is used for controlling the state of a signal lamp of the target intersection.

According to another aspect of the present disclosure, there is provided a traffic control device including:

the acquisition module is used for responding to a navigation protection request, acquiring the driving parameters of the target vehicle and the signal lamp state parameters of the target intersection, wherein the navigation protection request is used for requesting the target vehicle to pass through green waves of the target intersection;

and the control strategy generation module is used for generating a signal lamp control strategy according to the driving parameters and the signal lamp state parameters, and the signal lamp control strategy is used for controlling the state of a signal lamp of the target intersection.

According to another aspect of the present disclosure, there is provided an electronic device including:

at least one processor; and

a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,

the memory stores instructions executable by the at least one processor to enable the at least one processor to perform a method according to any one of the embodiments of the present disclosure.

According to another aspect of the present disclosure, there is provided a non-transitory computer readable storage medium having stored thereon computer instructions for causing a computer to perform a method in any of the embodiments of the present disclosure.

According to another aspect of the present disclosure, a computer program product is provided, comprising a computer program which, when executed by a processor, implements the method in any of the embodiments of the present disclosure.

According to the technology disclosed by the invention, in response to a navigation request, a driving parameter of a target vehicle and a signal lamp state parameter of a target intersection are obtained, a signal lamp control strategy is generated according to the driving parameter and the signal lamp state parameter, so that the lamp state and/or configuration duration of a signal lamp are/is controlled to change, a green wave of the target vehicle passes through the target intersection, active priority control depending on accurate positioning is realized, automatic control of traffic is realized through system data interaction with a signal control system, the problem that a large amount of police force is required for traditional emergency special duty task guarantee is solved, and meanwhile, the informatization level of urban road traffic management is effectively improved by a reliable technical means.

It should be understood that the statements in this section do not necessarily identify key or critical features of the embodiments of the present disclosure, nor do they limit the scope of the present disclosure. Other features of the present disclosure will become apparent from the following description.

Drawings

The drawings are included to provide a better understanding of the present solution and are not to be construed as limiting the present disclosure. Wherein:

FIG. 1 shows a flow chart of a traffic control method according to an embodiment of the present disclosure;

FIG. 2 illustrates a detailed flow diagram of generating a signal light control strategy for a traffic control method according to an embodiment of the present disclosure;

FIG. 3 illustrates a detailed flow chart of a method of generating a signal light control strategy according to an embodiment of the present disclosure;

fig. 4 shows a detailed flow chart for generating a first signal light control strategy of a traffic control method according to an embodiment of the present disclosure;

fig. 5 illustrates a detailed flowchart of generating a restoration control signal of a traffic control method according to an embodiment of the present disclosure;

fig. 6 shows a detailed flowchart of the traffic control method generating and sending a voice broadcast instruction according to an embodiment of the present disclosure;

fig. 7 is a diagram illustrating an example of an application scenario of a traffic control method according to an embodiment of the present disclosure;

FIG. 8 shows a block diagram of a traffic control device according to an embodiment of the present disclosure;

fig. 9 is a block diagram of an electronic device for implementing a traffic control method of an embodiment of the present disclosure.

Detailed Description

Exemplary embodiments of the present disclosure are described below with reference to the accompanying drawings, in which various details of the embodiments of the disclosure are included to assist understanding, and which are to be considered as merely exemplary. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the present disclosure. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.

A traffic control method according to an embodiment of the present disclosure is described below with reference to fig. 1 to 9.

As shown in fig. 1, a traffic control method according to an embodiment of the present disclosure includes the steps of:

s101: responding to a navigation protection request, acquiring the driving parameters of a target vehicle and the signal lamp state parameters of the target intersection, wherein the navigation protection request is used for requesting the target vehicle to pass through the green wave of the target intersection;

s102: and generating a signal lamp control strategy according to the driving parameters and the signal lamp state parameters, wherein the signal lamp control strategy is used for controlling the state of a signal lamp of the target intersection.

In the disclosed embodiment, the target vehicle may be any vehicle having a right to green wave passage at the target intersection. For example, the target vehicle may be a special vehicle, and specifically may be an ambulance, a police vehicle, or a fire truck, etc. performing the task requiring an urgent passage through the target intersection. The target intersection refers to a specified intersection which needs to be passed by the target vehicle in the driving direction.

The convoy request may be initiated directly by the target vehicle or by a detection device arranged beside the road.

For example, when the target vehicle needs to pass through green waves at the target intersection, a convoy request is initiated through a navigation terminal installed on the target vehicle. The navigation terminal may be preinstalled with a navigation APP (Application), and the driver generates and sends a navigation protection request by performing corresponding operation on the navigation APP.

For another example, the detection device beside the road is used for detecting whether the target vehicle needs to pass through green waves at the target intersection. Specifically, it is possible to detect whether a warning lamp of the target vehicle is operating using an image recognition technique to determine whether the target vehicle is performing a mission, and to generate and transmit a convoy request in a case where it is determined that the target vehicle is performing the mission.

For example, in step S101, the driving parameters of the target vehicle may include a position parameter and a driving parameter of the target vehicle. The position parameters are used for representing the current position information of the target vehicle, and the driving parameters are used for representing the current driving direction and driving speed of the target vehicle.

The signal light state parameters of the target intersection may include the current light state and the configuration duration of the signal light of the target intersection. The current headlight state of the signal lamp may be specifically a traffic light (for example, a green light), a no traffic light (for example, a red light), or a waiting indication (for example, a yellow light), and the configured time period may be a remaining time period during which the current headlight state continues to be maintained.

The driving parameters of the target vehicle may be acquired by GPS (Global Positioning System) data transmitted from a navigation terminal of the target vehicle. The signal light status parameters may be received from a signal light management platform.

For example, in step S102, after the traffic light control policy is generated, the traffic light control policy may be sent to the traffic light management platform. And responding to the signal lamp control strategy, the signal lamp management platform controls the lamp state and/or the configuration time length of the signal lamp of the target intersection so that the target vehicle passes through the target intersection under the indication of the signal lamp.

The generation of the signal lamp control strategy is described below with a specific example.

In one example, the passing time of the target vehicle reaching the target intersection is calculated according to the position parameter of the target vehicle and the signal lamp state parameter of the target intersection. For example, the current distance of the target vehicle from the target intersection may be calculated according to the position parameter of the target vehicle, and then the passage time length of the target vehicle reaching the target intersection may be calculated according to the traveling speed of the target vehicle and the current distance.

And if the light state of the target intersection is the passing, judging whether the passing time length is greater than the configuration time length of the signal lamp. And under the condition that the passing time length is less than or equal to the configuration time length of the signal lamp, generating a first signal lamp control strategy and sending the first signal lamp control strategy to the signal lamp management platform, wherein the first signal lamp control strategy is used for maintaining the current state of the signal lamp by the signal lamp management platform. And under the condition that the passing time length is greater than the configuration time length of the signal lamp, generating a second signal lamp control strategy and sending the second signal lamp control strategy to the signal lamp management platform, wherein the second signal lamp control strategy is used for the signal lamp management platform to control the configuration time length of the signal lamp to be prolonged to a first preset time length, and the preset time length is greater than the passing time length.

And when the light state of the target intersection is no, generating a third signal light control strategy and sending the third signal light control strategy to the signal light management platform, wherein the third signal light control strategy is used for the signal light management platform to control the light state of the signal light to be changed into the traffic light, or is used for controlling the configuration duration of the signal light to be shortened to a second preset duration.

According to the traffic control method, in response to a convoying request, the driving parameters of the target vehicle and the signal lamp state parameters of the target intersection are obtained, the signal lamp control strategy is generated according to the driving parameters and the signal lamp state parameters, and the change of the lamp state and/or the configuration duration of the signal lamp is controlled, so that the green wave of the target vehicle passes through the target intersection, the active priority control based on accurate positioning is realized, the automatic control of the traffic is realized through the system data interaction with the signal control system, the problem that the traditional emergency special duty task guarantee needs a large amount of police force investment is solved, meanwhile, the informatization level of urban road traffic management is effectively improved through a reliable technical means, and the equipment cost and the labor cost for constructing a green wave passing control system for the target vehicle are reduced.

As shown in fig. 2, in one embodiment, the driving parameters include a position parameter and a driving parameter of the target vehicle, the signal lamp state parameters include a current lamp state and a configuration time period of the signal lamp, and the step S102 includes:

s201: determining a request event for a target vehicle;

s202: determining the passing time of the target vehicle reaching the target intersection according to the driving parameters and the position parameters under the condition that the request event is an entrance event;

s203: and generating a signal lamp control strategy according to the passing time length and the current lamp state and the configuration time length of the signal lamp.

Illustratively, in step S201, the request event of the target vehicle includes an entrance time and an exit event.

Wherein the request event may be determined based on the location parameter and the driving parameter of the target vehicle. For example, it is determined whether the target vehicle is traveling toward the target intersection based on the position parameter and the traveling direction of the target vehicle, and in the case where the target vehicle is traveling toward the target intersection, the request event is determined to be an entrance event.

For example, in step S202, the length of the passage for the target vehicle to reach the target intersection may be determined according to the distance between the target vehicle and the target intersection and the current driving speed of the target vehicle. The distance between the target vehicle and the target intersection can be calculated according to the current position information of the target vehicle and the position information of the target intersection.

For example, in step S203, a signal lamp control strategy may be determined and generated according to the passing time length of the target vehicle and whether the current lamp state and the configuration time length of the signal lamp can achieve green wave passing through the target intersection of the target vehicle.

The signal lamp control strategy is used for controlling the change of the lamp state of the signal lamp, the change of the configuration time length of the signal lamp, or maintaining the current lamp state and the configuration time length.

For example, in the case that the light state of the signal lamp is the passage and the configured time length is greater than or equal to the passage time length, the generated signal lamp control strategy is used for controlling the light state and the configured time length of the signal lamp to maintain the current state.

For another example, when the light state of the signal light is the passage and the configuration time length is less than the passage time length, the generated signal light control strategy is used for controlling the configuration time length of the signal light to be extended, so that the extended configuration time length is not less than the passage time length.

For another example, when the traffic light is in a no-pass state, the generated traffic light control policy is used to control the traffic light to change the light state to a pass state, and the configuration time corresponding to the changed light state is not less than the pass time.

Through the implementation mode, under the condition that the request event of the target vehicle is the entrance event, the light state and the configuration duration of the signal lamp can be controlled to meet the requirement that the target vehicle smoothly enters the target intersection in the process that the target vehicle runs to the target intersection at the current running speed.

As shown in fig. 3, in one embodiment, step S203 includes:

s301: judging whether the passing time length and the state parameters of the signal lamp meet a first preset condition, wherein the first preset condition is as follows: the current lamp state of the signal lamp is a passing state, and the passing time length is less than the configuration time length of the signal lamp;

s302: under the condition that the passing time length and the state parameters of the signal lamps accord with a first preset condition, generating a first signal lamp control strategy, wherein the first signal lamp control strategy is used for controlling the signal lamps of the target intersection to keep the current state; alternatively, the first and second electrodes may be,

s303: and generating a second signal lamp control strategy under the condition that the passing time and the state parameters of the signal lamps do not accord with the first preset condition, wherein the second signal lamp control strategy is used for controlling the state change of the signal lamps of the target intersection.

It can be understood that, when the first preset condition is met, that is, when the current light state of the signal lamp is the passing state and the configuration time length corresponding to the current light state is greater than or equal to the passing time length, the target vehicle can reach the target intersection within the configuration time length corresponding to the current light state of the signal lamp at the current running speed, so that the target vehicle can smoothly reach the target intersection.

Illustratively, after generating the first signal lamp control strategy, the first signal lamp control strategy is sent to the signal lamp management platform, and the signal lamp management platform controls the signal lamp to maintain the current lamp state and the configuration duration of the signal lamp in response to the first signal lamp control strategy.

Illustratively, when the current light state of the signal light is the passing state and the passing time is greater than or equal to the configuration time of the signal light, or when the current light state of the signal light is the no-passing state, the passing time and the state parameters of the signal light are determined not to meet the first preset condition, a second signal light control strategy is generated and sent to the signal light management platform, and the signal light management platform responds to the second signal light control strategy and controls the light state and/or the configuration time of the signal light to be changed.

Through the embodiment, the first signal lamp control strategy or the second signal lamp control strategy can be generated according to the passing time and the state parameters of the signal lamps, so that the state of the signal lamps is controlled to meet the requirement that the green wave of the target vehicle passes through the target intersection.

As shown in fig. 4, in one embodiment, step S302 includes:

s401: determining the road congestion condition of the target vehicle according to the running parameters;

s402: determining the passing distance between the target vehicle and the target intersection according to the position parameters under the condition that the road congestion condition is congestion;

s403: and under the condition that the passing distance is less than or equal to the distance threshold, determining that the second signal lamp control strategy is a first change strategy, wherein the first change strategy is used for controlling the state of the signal lamp of the target intersection to change into passing and adjusting the configured time length to be a first preset time length.

For example, in step S401, the road congestion condition may be determined according to the current traveling speed of the target vehicle. For example, in the case that the current running speed of the target vehicle is less than or equal to the congestion speed threshold, determining that the road congestion condition is congestion; and under the condition that the current running speed of the target vehicle is greater than the congestion speed threshold, determining that the road congestion condition is not congestion. The congestion speed threshold may be set according to actual conditions, and may be 5m/s, for example.

For example, in step S402, the passing distance may be calculated according to the current position information of the target vehicle and the position information of the target intersection.

It can be understood that, in step S403, in the case that the passing distance is less than or equal to the distance threshold, that is, the distance between the target vehicle and the target intersection is relatively short, the light state of the signal lamp of the target intersection may be changed to pass, and the configuration time length corresponding to the changed light state may be adjusted to the first preset time length. The first preset time length is longer than the passing time length of the target vehicle to the target intersection at the current running speed.

The distance threshold may be set according to actual conditions, and may be 200 meters, for example.

Through the embodiment, under the condition that the road congestion condition of the target vehicle is congestion and the passing distance between the target vehicle and the target intersection is not more than the distance threshold, the light state of the signal lamp can be directly changed into passing, and the configuration time length is adjusted to be the first preset time length which is longer than the passing time length, so that the green wave passing condition can be provided for the target vehicle under the condition of road congestion.

In one embodiment, step S302 further comprises:

and in the case that the road congestion condition is not congestion, determining that the second signal lamp control strategy is a second change strategy, wherein the second change strategy is used for at least one of the following:

under the condition that the lamp state of the signal lamp is the pass state, the configuration time length of the signal lamp is controlled to be prolonged by a first time length;

and under the condition that the lamp state of the signal lamp is the no-pass state, the configuration time length of the signal lamp is controlled to be shortened by a second time length.

It can be understood that, when the traveling speed of the target vehicle is greater than the congestion speed threshold, it indicates that the current road condition traveled by the target vehicle is still enough, that is, the road congestion condition is not congestion. Thereby, the current running speed of the target vehicle can be ensured.

For example, in the case that the light state of the signal light is the passage, the second change strategy is used for controlling the signal light to keep the current light state unchanged, and controlling the configuration time length of the light state to be prolonged by the first time length, wherein the prolonged configuration time length is greater than or equal to the passage time length of the target vehicle to travel to the target intersection at the current vehicle speed.

Illustratively, in the case where the lamp state of the traffic light is no-pass, the second change strategy is used for controlling the lamp state of the traffic light to remain unchanged and controlling the configured time period in the current lamp state to be shortened by the second time period. Therefore, the time length for changing the lamp state of the signal lamp from the no-pass state to the pass state is shortened. It should be noted that, under the condition that the road congestion condition is no congestion, even if the light state of the signal light at the target intersection is no-pass, the target vehicle can still continue to move forward along the current moving speed by controlling the light state of the signal light to maintain no-pass and shortening the configuration time, so that the target vehicle can move to the target intersection smoothly and unimpededly.

Through the embodiment, under the condition that the road congestion condition of the target vehicle is determined to be non-congestion, the generated second change strategy can maintain the current light state of the signal lamp unchanged, only the configuration time length in the current light state is prolonged or shortened, the influence on vehicles running at the target intersection along other directions is reduced while the target vehicle can pass to the target intersection through green waves, and therefore the traffic order of the target intersection is guaranteed.

As shown in fig. 5, in one embodiment, the driving parameters include a position parameter and a driving parameter of the target vehicle, the signal lamp state parameters include a current lamp state and a configuration time period of the signal lamp, and the step S102 includes:

s501: determining a request event for a target vehicle;

s502: and under the condition that the request event is an intersection exit event, generating a reduction control signal according to the position parameter, wherein the reduction control signal is used for controlling the state of a signal lamp of the target intersection to be reduced to a preset state.

For example, in step S501, the request event may be determined according to the position parameter and the driving parameter of the target vehicle. For example, it is determined whether the target vehicle is traveling toward the target intersection based on the position parameter and the traveling direction of the target vehicle, and in the case where the target vehicle is traveling away from the target intersection, the request event is determined to be an exit event.

Illustratively, in step S502, it is determined whether the target vehicle is out of a preset range corresponding to the target intersection according to the current position information of the target vehicle. And under the condition that the target vehicle is driven out of the preset range of the target intersection, generating a reduction control signal and sending the reduction control signal to the signal lamp management platform. And the signal lamp management platform responds to the restoration control signal and controls the state of the signal lamp of the target intersection to be restored to the previous preset state, namely the lamp state and the configuration duration of the signal lamp are restored to the configuration scheme before the change.

Through the embodiment, under the condition that the target vehicle smoothly exits from the target intersection, the state of the signal lamp of the target intersection can be controlled to be reduced to the preset state, so that the signal lamp can normally guide the passing vehicle of the target intersection in the preset state.

In one embodiment, the method further comprises:

and sending the signal lamp control strategy to the signal lamp management platform so that the signal lamp management platform controls the state of the signal lamp of the target intersection according to the signal lamp control strategy.

Illustratively, the traffic control platform and the signal lamp management platform for executing the traffic control method of the embodiment of the disclosure may communicate through a local area private network to ensure that the signal lamp control strategy can be quickly and stably sent to the signal lamp management platform.

The signal lamp management platform can be a platform for uniformly managing and controlling the lamp states and the configuration duration of all signal lamps in a certain area.

Through the embodiment, the traffic management system and the signal lamp management system for the green wave passage of the target vehicle can be constructed in a modularized mode, so that the traffic management system is butted with signal lamp management platforms corresponding to different areas, unified management and control of urban road traffic are achieved, and the informatization level of urban road traffic management is effectively improved.

In one embodiment, acquiring the driving parameters of the target vehicle and the signal lamp state parameters of the target intersection corresponding to the target vehicle includes:

acquiring the running parameters of a target vehicle from a navigation terminal of the target vehicle by using a foreground docking module; and the number of the first and second groups,

and acquiring signal lamp state parameters of the target intersection from the signal lamp management platform by using the middle station docking module.

The navigation APP can send the running parameters of the target vehicle to the foreground butt-joint module through the navigation terminal under the operation of a user. Wherein, the navigation terminal can be other intelligent equipment such as car machine end, cell-phone, panel computer.

And the navigation terminal performs data interaction with the foreground docking module through an internet transmission protocol. For example, the navigation APP may have a one-key navigation function, and after the user triggers the one-key navigation function, the navigation APP sends a navigation request to the foreground docking module through the navigation terminal. And responding to the convoy request, the foreground docking module sends a parameter acquisition instruction to the navigation terminal to acquire the driving parameters of the target vehicle. And responding to the parameter acquisition instruction, and sending the running parameters of the target vehicle to the target vehicle by the navigation terminal.

The middle platform butt joint module and the signal lamp management platform carry out data interaction through a local area private network. The middle station docking module can acquire the signal lamp state parameters of the target intersection from the signal lamp management platform and can send the generated signal lamp control strategy to the signal lamp management platform.

Through the embodiment, data interaction with the navigation terminal of the target vehicle and the signal lamp management platform can be realized, and the running parameters of the target vehicle can be directly acquired through the navigation terminal of the target vehicle, so that a GPS device or a monitoring system does not need to be arranged beside a road, the construction and maintenance cost is reduced, and the acquired position information and speed information of the target vehicle have high accuracy.

In one embodiment, the foreground docking module communicates with the navigation terminal of the target vehicle through Asynchronous Transfer Mode (ATM) or hypertext Transfer Protocol (HTTP).

It will be appreciated that asynchronous transfer is a cell switching and multiplexing technique. The asynchronous transmission method uses a Cell (Cell) as a transmission unit, the Cell has a fixed length, 53 bytes in total, the first 5 bytes are a Header (Header), and the remaining 48 bytes are a data segment. The header contains information such as the logical address to which the cell is going, priority, header error control, flow control, etc. The data segment is loaded with user information or other management information for various services broken up into data blocks and transparently across the network. Data interaction is carried out between the foreground docking module and the navigation terminal of the target vehicle in an asynchronous transmission mode, resources can be occupied according to actual needs of data transmission, and therefore reasonable utilization of network resources is guaranteed.

The hypertext transfer protocol is a request-response protocol that runs on top of a transmission control protocol and specifies what messages the navigation terminal of the target vehicle may send to the foreground docking module and what responses to get. The headers of the request and response messages are given in ASCII form; and the message content has a MIME-like format. The foreground docking module and the navigation terminal of the target vehicle carry out data interaction through the hypertext transfer protocol, so that the construction difficulty of the data interaction is simplified, and the rapid response of the foreground docking module for data receiving and sending can be realized.

As shown in fig. 6, in one embodiment, the method further comprises:

s601: determining surrounding vehicles located within a preset range of a target vehicle;

s602: and sending a voice broadcasting instruction to the navigation terminals of the surrounding vehicles through the foreground docking module, wherein the voice broadcasting instruction is used for the navigation terminals of the surrounding vehicles to broadcast prompt voice.

The preset range of the target vehicle may be specifically set according to actual conditions, and the embodiment of the present disclosure is not specifically limited in this regard. For example, the preset range of the target vehicle may be a circular range formed with a preset distance as a radius centered on the target vehicle. For another example, the preset range of the target vehicle may also be a range formed by a sector area located in front of the target vehicle.

For example, in step S601, the surrounding vehicle may be identified and determined by a vehicle monitoring device provided on the road where the target vehicle is located.

For example, in step S602, the foreground docking module may perform data interaction with a navigation APP pre-installed on a navigation terminal of the surrounding vehicle through an internet protocol. And the navigation terminals of the adjacent vehicle rids respond to the voice broadcasting instruction and broadcast preset prompting voice, such as other voice frequencies of 'ambulance/fire truck/emergency rescue vehicle nearby, please notice to avoid', and the like, so as to remind the adjacent vehicles to avoid the target vehicle.

Through the embodiment, the passing resistance of the peripheral vehicle to the target vehicle can be further reduced, and the passing efficiency of the target vehicle can be improved.

The traffic management method of the embodiment of the present disclosure is described below with reference to a specific example of a traffic control system shown in fig. 7.

As shown in fig. 7, the traffic control system (i.e., the one-key convoy management platform) includes a foreground docking module, an algorithm module, and a middle docking module. The foreground docking module performs data interaction with a navigation terminal of a target vehicle, and the middle docking module performs data interaction with the signal lamp management platform.

Responding to a navigation protection request initiated by a navigation terminal of a target vehicle, sending a parameter acquisition request to the navigation terminal by the foreground docking module, and responding to the parameter acquisition request, pushing real-time position parameters and speed parameters of the target vehicle to the foreground docking module by the navigation terminal. And the foreground docking module forwards the real-time position parameter and the speed-per-hour parameter of the target vehicle to the algorithm module. Meanwhile, the middle station docking module sends a query request to the signal lamp management platform so as to query the timing scheme and the lamp state information of each target intersection. And responding to the query request, the signal lamp management platform sends the timing scheme and the lamp state information of each target intersection to the middle station docking module, and the middle station docking module forwards the information to the algorithm module.

And the algorithm module determines the signal lamp coordination scheme of each target intersection according to the received real-time position and speed information of the target vehicle, and the timing scheme and the lamp state information of each target intersection. Specifically, the algorithm module calculates the passing time of the target vehicle reaching each target intersection according to the real-time position and the speed information of the target vehicle, generates a coordination scheme of each target intersection according to the passing time, the timing scheme and the light state information of each target intersection, and forwards the coordination scheme to the signal lamp management platform through the middle station docking module. And the signal lamp management platform controls the lamp state and the timing scheme of the signal lamp of each target intersection according to the coordination scheme of each target intersection.

In addition, the signal lamp management platform can feed back the execution result to the algorithm module. Specifically, under the condition that the signal lamps of the target intersection are successfully controlled according to the coordination scheme, the target vehicle successfully passes through the green wave of the target intersection; and under the condition that the signal lamp of the target intersection is successfully controlled according to the coordination scheme and fails, forwarding the execution failure result to the algorithm module through the middle station docking module. And the algorithm module determines the failure reason according to the execution failure result and judges whether to abandon the optimization of the intersection or not.

According to an embodiment of the present disclosure, the present disclosure also provides a traffic control device.

As shown in fig. 8, the traffic control device of the embodiment of the present disclosure includes:

an obtaining module 801, configured to obtain a driving parameter of a target vehicle and a signal lamp state parameter of a target intersection in response to a convoy request, where the convoy request is used to request the target vehicle to pass through a green wave at the target intersection;

and a control strategy generation module 802, configured to generate a signal lamp control strategy according to the driving parameter and the signal lamp state parameter, where the signal lamp control strategy is used to control a state of a signal lamp at the target intersection.

In one embodiment, the driving parameters comprise position parameters and driving parameters of the target vehicle, and the signal lamp state parameters comprise the current lamp state and the configuration time length of the signal lamp;

the control policy generation module 802 includes:

a request event determination submodule for determining a request event of the target vehicle;

the passing time length determining submodule is used for determining the passing time length of the target vehicle reaching the target intersection according to the driving parameters and the position parameters under the condition that the request event is the entrance event;

and the first generation submodule is used for generating a signal lamp control strategy according to the passing time length and the current lamp state and the configuration time length of the signal lamp.

In one embodiment, the first generation submodule includes, according to the passage time length and the current lamp state and the configuration time length of the signal lamp:

the first generation unit is used for generating a first signal lamp control strategy under the condition that the passing time and the state parameters of the signal lamps accord with a first preset condition, wherein the first signal lamp control strategy is used for controlling the signal lamps of the target intersection to keep the current state; alternatively, the first and second electrodes may be,

the second generation unit is used for generating a second signal lamp control strategy under the condition that the passing time and the state parameters of the signal lamps do not accord with the first preset conditions, and the second signal lamp control strategy is used for controlling the state change of the signal lamps of the target intersection;

wherein the first preset condition is as follows: the current lamp state of the signal lamp is the passing state, and the passing time length is less than the configuration time length of the signal lamp.

In one embodiment, the second generating unit is further configured to:

determining the road congestion condition of the target vehicle according to the running parameters;

determining the passing distance between the target vehicle and the target intersection according to the position parameters under the condition that the road congestion condition is congestion;

and under the condition that the passing distance is smaller than or equal to the distance threshold, determining that the second signal lamp control strategy is a first change strategy, wherein the first change strategy is used for controlling the state of the signal lamp of the target intersection to be changed into passing and adjusting the configured time length to be a first preset time length.

In one embodiment, the second generating unit is further configured to:

under the condition that the lamp state of the signal lamp is the passing state, the configuration time length of the signal lamp is controlled to be prolonged by a first time length;

and under the condition that the lamp state of the signal lamp is no passing, the configuration time length of the signal lamp is controlled to be shortened by a second time length.

In one embodiment, the driving parameters include position parameters and driving parameters of the target vehicle, and the signal lamp state parameters include a current lamp state and a configuration time length of a signal lamp;

the control policy generation module 802 includes:

a request time determination submodule for determining a request event of the target vehicle;

and the second generation submodule is used for generating a reduction control signal according to the position parameter under the condition that the request event is an intersection exit event, and the reduction control signal is used for controlling the state of the signal lamp of the target intersection to be reduced to a preset state.

In one embodiment, the apparatus further comprises:

and the sending module is used for sending the signal lamp control strategy to the signal lamp management platform so that the signal lamp management platform controls the state of the signal lamp of the target intersection according to the signal lamp control strategy.

In one embodiment, the obtaining module 801 is further configured to:

In one embodiment, the foreground docking module communicates with the navigation terminal of the target vehicle through an asynchronous transmission mode or a hypertext transfer protocol.

In one embodiment, the apparatus further comprises:

a nearby vehicle determination module for determining a nearby vehicle located within a preset range of the target vehicle;

and the voice broadcast instruction sending module is used for sending a voice broadcast instruction to the navigation terminals of the peripheral vehicles through the foreground docking module, and the voice broadcast instruction is used for broadcasting prompt voice for the navigation terminals of the peripheral vehicles.

In the technical scheme of the disclosure, the acquisition, storage, application and the like of the personal information of the related user all accord with the regulations of related laws and regulations, and do not violate the good customs of the public order.

The present disclosure also provides an electronic device, a readable storage medium, and a computer program product according to embodiments of the present disclosure.

FIG. 9 illustrates a schematic block diagram of an example electronic device 900 that can be used to implement embodiments of the present disclosure. Electronic devices are intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The electronic device may also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be examples only, and are not meant to limit implementations of the disclosure described and/or claimed herein.

As shown in fig. 9, the apparatus 900 includes a computing unit 901 which can perform various appropriate actions and processes in accordance with a computer program stored in a Read Only Memory (ROM)902 or a computer program loaded from a storage unit 908 into a Random Access Memory (RAM) 903. In the RAM903, various programs and data required for the operation of the device 900 can also be stored. The calculation unit 901, ROM 902, and RAM903 are connected to each other via a bus 904. An input/output (I/O) interface 905 is also connected to bus 904.

A number of components in the device 900 are connected to the I/O interface 905, including: an input unit 906 such as a keyboard, a mouse, and the like; an output unit 907 such as various types of displays, speakers, and the like; a storage unit 908 such as a magnetic disk, optical disk, or the like; and a communication unit 909 such as a network card, a modem, a wireless communication transceiver, and the like. The communication unit 909 allows the device 900 to exchange information/data with other devices through a computer network such as the internet and/or various telecommunication networks.

The computing unit 901 may be a variety of general and/or special purpose processing components having processing and computing capabilities. Some examples of the computing unit 901 include, but are not limited to, a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), various dedicated Artificial Intelligence (AI) computing chips, various computing units running machine learning model algorithms, a Digital Signal Processor (DSP), and any suitable processor, controller, microcontroller, and so forth. The calculation unit 901 performs the respective methods and processes described above, such as a traffic control method. For example, in some embodiments, the traffic control method may be implemented as a computer software program tangibly embodied in a machine-readable medium, such as storage unit 908. In some embodiments, part or all of the computer program may be loaded and/or installed onto device 900 via ROM 902 and/or communications unit 909. When the computer program is loaded into the RAM903 and executed by the computing unit 901, one or more steps of the traffic control method described above may be performed. Alternatively, in other embodiments, the computing unit 901 may be configured to perform the traffic control method by any other suitable means (e.g., by means of firmware).

Various implementations of the systems and techniques described here above may be implemented in digital electronic circuitry, integrated circuitry, Field Programmable Gate Arrays (FPGAs), Application Specific Integrated Circuits (ASICs), Application Specific Standard Products (ASSPs), system on a chip (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include: implemented in one or more computer programs that are executable and/or interpretable on a programmable system including at least one programmable processor, which may be special or general purpose, receiving data and instructions from, and transmitting data and instructions to, a storage system, at least one input device, and at least one output device.

Program code for implementing the methods of the present disclosure may be written in any combination of one or more programming languages. These program codes may be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the program codes, when executed by the processor or controller, cause the functions/operations specified in the flowchart and/or block diagram to be performed. The program code may execute entirely on the machine, partly on the machine, as a stand-alone software package partly on the machine and partly on a remote machine or entirely on the remote machine or server.

In the context of this disclosure, a machine-readable medium may be a tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

To provide for interaction with a user, the systems and techniques described here can be implemented on a computer having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to a user; and a keyboard and a pointing device (e.g., a mouse or a trackball) by which a user may provide input to the computer. Other kinds of devices may also be used to provide for interaction with a user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form, including acoustic, speech, or tactile input.

The systems and techniques described here can be implemented in a computing system that includes a back-end component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front-end component (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such back-end, middleware, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: local Area Networks (LANs), Wide Area Networks (WANs), and the Internet.

The computer system may include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. The server may be a cloud server, a server of a distributed system, or a server with a combined blockchain.

It should be understood that various forms of the flows shown above may be used, with steps reordered, added, or deleted. For example, the steps described in the present disclosure may be executed in parallel, sequentially, or in different orders, as long as the desired results of the technical solutions disclosed in the present disclosure can be achieved, and the present disclosure is not limited herein.

The above detailed description should not be construed as limiting the scope of the disclosure. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made in accordance with design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present disclosure should be included in the scope of protection of the present disclosure.

Claims

1. A traffic control method, comprising:

responding to a navigation protection request, acquiring a running parameter of a target vehicle and a signal lamp state parameter of a target intersection, wherein the navigation protection request is used for requesting the target vehicle to pass through green waves of the target intersection;

2. The method of claim 1, wherein the driving parameters include a location parameter and a driving parameter of the target vehicle, and the signal light state parameters include a current light state and a configuration time period of the signal light;

generating a signal lamp control strategy according to the driving parameters and the signal lamp state parameters, wherein the signal lamp control strategy comprises the following steps:

determining a request event for the target vehicle;

under the condition that the request event is an entrance event, determining the passing time of the target vehicle reaching the target intersection according to the running parameters and the position parameters;

and generating the signal lamp control strategy according to the passing time length and the current lamp state and configuration time length of the signal lamp.

3. The method of claim 2, wherein generating the signal light control strategy based on the transit time duration and a current light state and a configured time duration of the signal light comprises:

generating a first signal lamp control strategy under the condition that the passing time length and the state parameters of the signal lamps meet a first preset condition, wherein the first signal lamp control strategy is used for controlling the signal lamps of the target intersection to keep the current state; alternatively, the first and second electrodes may be,

generating a second signal lamp control strategy under the condition that the passing time length and the state parameters of the signal lamps do not accord with the first preset condition, wherein the second signal lamp control strategy is used for controlling the state change of the signal lamps of the target intersection;

wherein the first preset condition is as follows: the current lamp state of the signal lamp is a passing state, and the passing time length is smaller than the configuration time length of the signal lamp.

4. The method of claim 3, wherein generating a second signal lamp control strategy comprises:

determining the passing distance between the target vehicle and the target intersection according to the position parameter under the condition that the road congestion condition is congestion;

and under the condition that the passing distance is smaller than or equal to the distance threshold, determining that the second signal lamp control strategy is a first change strategy, wherein the first change strategy is used for controlling the state of the signal lamp of the target intersection to change into passing and adjusting the configured time length to be a first preset time length.

5. The method of claim 4, wherein generating a second signal lamp control strategy further comprises:

determining the second signal lamp control strategy as a second change strategy when the road congestion condition is not congestion, wherein the second change strategy is used for at least one of the following:

under the condition that the lamp state of the signal lamp is the passing state, controlling the configuration time length of the signal lamp to prolong a first time length;

and under the condition that the lamp state of the signal lamp is no passing, controlling the configuration time length of the signal lamp to shorten a second time length.

6. The method of claim 1, wherein the driving parameters include a location parameter and a driving parameter of the target vehicle, and the signal light status parameters include a current light status and a configured time duration of the signal light;

determining a request event for the target vehicle;

and under the condition that the request event is an intersection event, generating a reduction control signal according to the position parameter, wherein the reduction control signal is used for controlling the state of a signal lamp of the target intersection to be reduced to a preset state.

7. The method of claim 1, further comprising:

and sending the signal lamp control strategy to a signal lamp management platform so that the signal lamp management platform controls the state of the signal lamp of the target intersection according to the signal lamp control strategy.

8. The method of claim 7, wherein obtaining the driving parameters of the target vehicle and the signal light state parameters of the target intersection corresponding to the target vehicle comprises:

acquiring the running parameters of the target vehicle from the navigation terminal of the target vehicle by using a foreground docking module; and (c) a second step of,

and acquiring the signal lamp state parameters of the target intersection from the signal lamp management platform by using the middle station docking module.

9. The method of claim 8, wherein the foreground docking module communicates with the navigation terminal of the target vehicle via an asynchronous transfer mode or a hypertext transfer protocol.

10. The method of any of claims 1 to 9, further comprising:

determining surrounding vehicles located within a preset range of the target vehicle;

and sending a voice broadcast instruction to the navigation terminals of the peripheral vehicles through a foreground docking module, wherein the voice broadcast instruction is used for broadcasting prompt voice for the navigation terminals of the peripheral vehicles.

11. A traffic control device comprising:

the system comprises an acquisition module, a traffic light control module and a traffic light control module, wherein the acquisition module is used for responding to a navigation request, acquiring the driving parameters of a target vehicle and the signal light state parameters of a target intersection, and the navigation request is used for requesting the target vehicle to pass through green waves of the target intersection;

12. The apparatus of claim 11, wherein the driving parameters include a location parameter and a driving parameter of the target vehicle, and the signal light status parameters include a current light status and a configured time duration of the signal light;

the control strategy generation module comprises:

a request event determination submodule for determining a request event for the target vehicle;

the passing time length determining submodule is used for determining the passing time length of the target vehicle reaching the target intersection according to the running parameters and the position parameters under the condition that the request event is an entrance event;

and the first generation submodule is used for generating the signal lamp control strategy according to the passing time length and the current lamp state and configuration time length of the signal lamp.

13. The apparatus of claim 12, wherein, in accordance with the transit time duration and the current light state and configuration time duration of the signal lights, the first generation submodule comprises:

the first generation unit is used for generating a first signal lamp control strategy under the condition that the passing time length and the state parameters of the signal lamps meet first preset conditions, wherein the first signal lamp control strategy is used for controlling the signal lamps of the target intersection to keep the current state; alternatively, the first and second electrodes may be,

the second generating unit is used for generating a second signal lamp control strategy under the condition that the passing time length and the state parameters of the signal lamps do not accord with the first preset condition, wherein the second signal lamp control strategy is used for controlling the state change of the signal lamps of the target intersection;

wherein the first preset condition is as follows: the current lamp state of the signal lamp is the passing state, and the passing time length is smaller than the configuration time length of the signal lamp.

14. The apparatus of claim 13, wherein the second generating unit is further configured to:

and under the condition that the passing distance is smaller than or equal to a distance threshold value, determining that the second signal lamp control strategy is a first change strategy, wherein the first change strategy is used for controlling the state of the signal lamp of the target intersection to be changed into passing and adjusting the configured time length to be a first preset time length.

15. The apparatus of claim 14, wherein the second generating unit is further configured to:

16. The apparatus of claim 11, wherein the driving parameters include a position parameter and a driving parameter of the target vehicle, and the signal lamp state parameters include a current lamp state and a configuration time period of the signal lamp;

the control strategy generation module comprises:

a request time determination submodule for determining a request event for the target vehicle;

and the second generation submodule is used for generating a reduction control signal according to the position parameter under the condition that the request event is an intersection event, wherein the reduction control signal is used for controlling the state of the signal lamp of the target intersection to be reduced to a preset state.

17. The apparatus of claim 11, further comprising:

and the sending module is used for sending the signal lamp control strategy to a signal lamp management platform so that the signal lamp management platform controls the state of the signal lamp of the target intersection according to the signal lamp control strategy.

18. The apparatus of claim 17, wherein the means for obtaining is further configured to:

acquiring the running parameters of the target vehicle from the navigation terminal of the target vehicle by using a foreground docking module; and the number of the first and second groups,

and acquiring the signal lamp state parameters of the target intersection from a signal lamp management platform by using the middle station docking module.

19. The apparatus of claim 18, wherein the foreground docking module communicates with the navigation terminal of the target vehicle via an asynchronous transfer mode or a hypertext transfer protocol.

20. The apparatus of any of claims 11 to 19, further comprising:

the peripheral vehicle determining module is used for determining peripheral vehicles located in a preset range of the target vehicle;

and the voice broadcast instruction sending module is used for sending voice broadcast instructions to the navigation terminals of the peripheral vehicles through the foreground docking module, and the voice broadcast instructions are used for broadcasting prompt voice for the navigation terminals of the peripheral vehicles.

21. An electronic device, comprising:

at least one processor; and

a memory communicatively coupled to the at least one processor; wherein, the first and the second end of the pipe are connected with each other,

the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of claims 1 to 10.

22. A non-transitory computer readable storage medium having stored thereon computer instructions for causing the computer to perform the method of any one of claims 1 to 10.

23. A computer program product comprising a computer program which, when executed by a processor, implements the method according to any one of claims 1 to 10.