CN114463983A - Traffic facility control method, device, equipment and medium - Google Patents
Traffic facility control method, device, equipment and medium Download PDFInfo
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- CN114463983A CN114463983A CN202210158247.0A CN202210158247A CN114463983A CN 114463983 A CN114463983 A CN 114463983A CN 202210158247 A CN202210158247 A CN 202210158247A CN 114463983 A CN114463983 A CN 114463983A
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0125—Traffic data processing
- G08G1/0129—Traffic data processing for creating historical data or processing based on historical data
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0137—Measuring and analyzing of parameters relative to traffic conditions for specific applications
- G08G1/0145—Measuring and analyzing of parameters relative to traffic conditions for specific applications for active traffic flow control
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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Abstract
The application discloses a traffic facility control method, a traffic facility control device, traffic facility control equipment and traffic facility control media, and relates to intelligent traffic and big data technologies. The specific implementation scheme is as follows: acquiring historical travel data of a user within a set time period in a traffic network; calculating the optimized flow of each road section in the traffic network based on the system optimal model according to historical travel data, wherein the road sections comprise one-way road sections and relation road sections, and the relation road sections represent the passing relation between two connected one-way road sections; comparing the optimized flow and the historical flow of each relation road section in a set time period, and determining a target relation road section and a target one-way road section which enters the target relation road section, wherein the comparison result meets the change condition; and determining the traffic facility change content of the target one-way road section according to the traffic relation represented by the target relation road section, and transmitting the traffic facility change content to the traffic facility arranged on the target one-way road section for displaying. The embodiment of the application can dynamically adjust traffic facilities and reduce traffic jam.
Description
The application is a divisional application of Chinese patent application with the name of traffic facility control method, device, equipment and medium, which is filed by the Chinese patent office on 30.06.30.2020.
Technical Field
The present application relates to the field of computer technologies, and in particular, to an intelligent transportation technology, and more particularly, to a method, an apparatus, a device, and a medium for controlling a transportation facility.
Background
For driving users, the major transportation facilities that affect path planning include: lane information including, for example, turning around, turning left, going straight, turning right, and the like, and traffic restrictions including, for example, prohibition of turning around, prohibition of turning left, prohibition of turning right, and the like.
These traffic facilities play an important role in regulating traffic pressure, reducing traffic congestion, and securing driving safety today when vehicle occupancy is extremely saturated.
Disclosure of Invention
The application provides a traffic facility control method, a traffic facility control device, traffic facility control equipment and a traffic facility control medium, which are used for dynamically adjusting traffic facilities, adjusting traffic pressure, reducing traffic jam and ensuring driving safety.
In a first aspect, an embodiment of the present application provides a traffic facility control method, including:
acquiring historical travel data of a user in a set time period in a traffic network;
calculating the optimized flow of each road section in the traffic network based on a system optimal model according to the historical travel data, wherein the road sections comprise one-way road sections and relation road sections, and the relation road sections represent the traffic relation between two connected one-way road sections;
comparing the optimized flow and the historical flow of each relation road section in the set time period, and determining a target relation road section and a target one-way road section which enters the target relation road section, wherein the comparison result meets the change condition;
and determining the traffic facility change content of the target one-way road section according to the traffic relation represented by the target relation road section, and sending the traffic facility change content to the traffic facility arranged on the target one-way road section for display.
In a second aspect, an embodiment of the present application further provides a transportation facility control apparatus, including:
the historical data acquisition module is used for acquiring historical travel data of the user in a set time period in the traffic network;
the optimized flow calculation module is used for calculating the optimized flow of each road section in the traffic network based on a system optimal model according to the historical travel data, wherein the road sections comprise one-way road sections and relation road sections, and the relation road sections represent the traffic relation between two connected one-way road sections;
the comparison module is used for comparing the optimized flow and the historical flow of each relation road section in the set time period, and determining a target relation road section with a comparison result meeting a change condition and a target one-way road section which enters the target relation road section;
and the change content determining module is used for determining the traffic facility change content of the target one-way road section according to the traffic relation represented by the target relation road section, and sending the traffic facility change content to the traffic facility arranged on the target one-way road section for displaying.
In a third aspect, an embodiment of the present application further provides 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 transportation control method according to any embodiment of the present application.
In a fourth aspect, the embodiments of the present application further provide a non-transitory computer-readable storage medium storing computer instructions for causing a computer to execute the transportation facility control method according to any of the embodiments of the present application.
It should be understood that the statements in this section do not necessarily identify key or critical features of the embodiments of the present application, nor do they limit the scope of the present application. Other features of the present application will become readily apparent from the following description, and other effects of the above alternatives will be described hereinafter in conjunction with specific embodiments.
Drawings
The drawings are included to provide a better understanding of the present solution and are not intended to limit the present application. Wherein:
FIG. 1 is a flow chart diagram of a transportation facility control method according to an embodiment of the present application;
FIG. 2 is a schematic illustration of a traffic network according to an embodiment of the present application;
FIG. 3 is a flow chart diagram of another transportation facility control method according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a transportation facility control apparatus according to an embodiment of the present application;
fig. 5 is a block diagram of an electronic device for implementing the transportation facility control method according to the embodiment of the present application.
Detailed Description
The following description of the exemplary embodiments of the present application, taken in conjunction with the accompanying drawings, includes various details of the embodiments of the application for the understanding of the same, which are to be considered exemplary only. 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 application. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.
Fig. 1 is a flowchart illustrating a traffic facility control method according to an embodiment of the present application, which is applicable to a situation where a traffic facility on a road is controlled, and changed content of the traffic facility is determined and displayed, and relates to an intelligent transportation and big data technology. The method can be carried out by a traffic facility control device which is implemented in software and/or hardware, preferably configured in an electronic device, such as a computer device or a server. As shown in fig. 1, the method specifically includes the following steps:
s101, historical travel data of a user in a set time period in a traffic network are obtained.
The historical travel data refers to data of a vehicle traveling on a road, and for example, information such as a time and a starting and ending point of the vehicle traveling can be acquired based on a positioning technology such as a GPS. The embodiment of the application calculates the optimal flow of the road based on historical data, and then controls future road facilities based on the optimal flow. For example, an optimal flow rate of a road is calculated based on historical travel data of past days or weeks, and road facilities on the next day are controlled according to the optimal flow rate. In addition, because the congestion condition of the road changes every moment, for example, the congestion condition changes every weekday and weekend, and the congestion condition changes in the morning, evening and other periods in one day, a set time period is set to be several hours, or one hour, or even shorter, so that more accurate optimal flow information can be acquired, road facilities in the same time period in the future can be controlled, and the control of the road facilities is distinguished based on different time periods, so that a more accurate control effect can be realized, and better road flow planning can be realized. Therefore, the specific configuration of the set time period is not limited at all, and can be adjusted according to actual scenes and needs.
Specifically, the historical travel data may include at least one data set, and each data set includes a starting point and an ending point, an ID and a route flow of at least one route between the starting point and the ending point, and an ID and a section flow of at least one section in each route. The data is divided according to the starting point and the ending point to obtain at least one data set, wherein at least one of the starting point and the ending point in different data sets is different, for example, the starting point is different, or the ending point is different, or the starting point and the ending point are different. For the same starting point and the same end point, routes selected by different people are different, so that each data set comprises at least one route between the starting point and the end point, each route comprises at least one road section, and the road section refers to a road section in the map data, so that the historical travel data comprises the ID and the road section flow of the road sections, the ID and the route flow of the route, the road section flow is the sum of the route flows of all routes passing through the road section in the data set to which the road section belongs, and the flow can be defined as the total number of vehicles passing through the set time period.
S102, calculating the optimized flow of each road section in the traffic network based on the system optimal model according to historical travel data, wherein the road sections comprise one-way road sections and relation road sections, and the relation road sections represent the passing relation between two connected one-way road sections.
In order to realize control over traffic facilities, in the embodiment of the application, a directed graph of a traffic network is firstly constructed, and the traffic network is represented by the directed graph. And the directed edges in the directed graph represent links, each intersection in the traffic network represents a plurality of nodes in the directed graph, each node represents an end point of the link connecting the intersections, and the nodes are connected through the directed edges.
For example, fig. 2 is a schematic diagram of a traffic network according to an embodiment of the present application, and as shown in the figure, the directional edge with an arrow includes two types, one is a relational road segment and one is a unidirectional road segment. The one-way road section is an actual travel road in the road, and the relation road section is a road section representing the passing relation between two connected one-way road sections. For example, the figure shows three intersections, including intersection 1, intersection 2 and intersection 3, where there are 8 nodes in intersection 1 as end points of 8 unidirectional road segments connecting intersection 1, and a directed edge between any two nodes represents a passing relationship of the unidirectional road segments connected by the two nodes. For example, the relation link c represents a passing relation between the unidirectional link a and the unidirectional link b, and the passing relation represented by the relation link c is a right turn according to the direction of each directed edge. Similarly, the traffic relations of the unidirectional road sections represented by the other relation road sections in fig. 2 can also be determined, which is not described one by one here.
It should be noted that, since a road segment passes through an intersection to a next road segment, there is usually an association relationship between the two road segments, such as whether a left turn is possible or whether a head can be dropped. Therefore, in order to represent the association relationship, in the embodiment of the present application, a traffic network is represented as a directed graph, each intersection is represented as a plurality of nodes in the directed graph, each node is an end point of a certain road segment, the nodes are connected by directed edges, and the directed edges between the nodes at the same intersection are used as the relationship road segment. And for the directed edge of the road section with the type of relationship, the traffic relationship, such as straight running, right turning, left turning or turning around, can be determined based on the driving directions of the two one-way road sections connected with the directed edge. Then, after calculating the optimized traffic of each road segment, the traffic capacity of the related road segment can be adjusted to control the traffic of the road network. For example, if the relation link c is adjusted to prohibit the right turn, the vehicle of the one-way link a cannot travel to the one-way link b, thereby achieving the purpose of controlling the flow rate of the one-way link b. And the adjustment of the relation section c to prohibit the right turn can be realized by controlling the display contents of the transportation facilities.
Next, how to calculate the optimized traffic of each road segment in the traffic network based on the system optimal model according to the historical travel data will be described.
In order to realize the optimal flow planning on the road, the optimization goal of the system optimal model may be: the total travel time of all vehicles on the traffic network is minimal. Wherein the travel time is represented by the travel time of any link at its link flow rate.
Specifically, a set time period, for example, one hour, is denoted by T; the starting set is represented by OD, the starting point of the starting set OD is represented by s, the end point is represented by e, the route number is represented by k, the link number is represented by l, the OD flow rate is represented by q, the route flow rate is represented by r, the link flow rate is represented by f, and the link travel time is represented by t. The OD traffic is equal to the route traffic, the route includes multiple segments, and there may be multiple routes for the same OD.
For the constructed traffic network directed graph G, the flow f of the road section l in the road section is determinedlThe following travel time is denoted as tl(fl) By tl(fl) To express the cost, i.e., the link performance function, the following is obtained:
wherein the content of the first and second substances,
representing the travel time of the link i in a free-flow regime, ClRefers to the capacity of the road segment 1. And alpha and beta are parameters to be calibrated. For example, α ═ 4 and β ═ 0.15. The traffic capacity represents the maximum number of vehicles that can pass through in a unit time when there is no traffic jam on the link.
Therefore, based on the system optimal model, the optimization target is that the total travel time of all vehicles on the traffic network is minimum, and the obtained target function is as follows:
and the system optimization model can be expressed as:
the constraint function includes:
fl≥0，l∈G
wherein the content of the first and second substances,
represents an OD pair<s,e>The k-th route above passes through the section l if
It means that the kth route does not pass through the link i.
Finally, solving the convex programming model based on sequential quadratic programming can obtain each OD pair of OD flow in the time period T<s,e>Traffic distributed to k routes
Traffic based on all ODs down different routes
The optimized flow f of each road section (namely each edge l in the traffic network G) can be obtainedl S。
S103, comparing the optimized flow and the historical flow of each relation road section in a set time period, and determining a target relation road section and a target one-way road section which enters the target relation road section, wherein the comparison result meets the change condition.
For the same relation road section, the optimized flow is calculated in step S102 according to the optimized target of the minimum total travel time of all vehicles on the traffic network, the historical flow is the real flow that has occurred, and the road section where the traffic facility needs to be adjusted can be found by comparing the optimized flow with the historical flow. Specifically, the changing condition may include: the historical flow exceeds the optimized flow by preset times. The specific value of the preset multiple can be adjusted according to actual scenes and requirements and the optimization effect of actual needs, which is not limited in this embodiment of the present application.
And S104, determining the traffic facility change content of the target one-way road section according to the traffic relation represented by the target relation road section, and transmitting the traffic facility change content to the traffic facility arranged on the target one-way road section for display.
After the target relation road section with the comparison result meeting the change condition is determined, the target one-way road section entering the target relation road section can be determined according to the directed graph, and the traffic facility change content of the target one-way road section can be determined according to the traffic relation represented by the target relation road section. For example, if the traffic relation is a right turn, the traffic facility change contents of the target one-way link is a prohibition of right turn; if the passing relationship is turning around, the content of the traffic facility change is forbidden to turn around; if the traffic relation is left turn, the traffic facility change content is that the left turn and the straight running are forbidden.
And then, the traffic facility change content of the target one-way road section is issued to the traffic facility arranged on the target one-way road section through the update instruction to be displayed. Wherein, traffic facilities is intelligent transportation terminal, and the core includes four parts: 5G networking module, LED display device, sensor and solar cell panel. The 5G networking module is used for realizing the networking capability of the deployed transportation facilities. The LED display device is used for adjusting display content according to the instruction. The sensor is used for obtaining the state of the intelligent traffic terminal and reporting to the background in real time through mechanisms such as equipment heartbeat. The solar panel provides necessary power supply for the intelligent transportation terminal.
According to the technical scheme of the embodiment of the application, the relation road section representing the traffic relation between the two one-way road sections is constructed, the optimal traffic flow plan is obtained based on the system optimal model, then the optimal traffic flow plan is compared with the historical flow of a user, the target relation road section meeting the change condition and the target one-way road section driving into the target relation road section can be determined, and finally the purpose of dynamically regulating and controlling the traffic facilities and the traffic flow is achieved by regulating the traffic facilities of the target one-way road section and displaying the change content of the traffic facilities, so that the traffic pressure is regulated, the traffic jam is reduced, and the driving safety is ensured.
Fig. 3 is a schematic flow chart of another transportation facility control method according to an embodiment of the present application, which is further optimized based on the above embodiment. As shown in fig. 3, the method specifically includes the following steps:
s201, obtaining historical travel data of a user in a set time period in a traffic network.
S202, calculating the optimized flow of each road section in the traffic network based on the system optimal model according to historical travel data, wherein the road sections comprise one-way road sections and relation road sections, and the relation road sections represent the passing relation between two connected one-way road sections.
S203, comparing the optimized flow and the historical flow of each relation road section in a set time period, and determining a target relation road section and a target one-way road section which enters the target relation road section, wherein the comparison result meets the change condition.
And S204, determining the traffic facility change content of the target one-way road section according to the traffic relation represented by the target relation road section, and transmitting the traffic facility change content to the traffic facility arranged on the target one-way road section for display.
S205, determining the travel coverage probability of each road section of each user in a set time period according to historical travel data; and determining at least one first target user of which the travel coverage probability of the target one-way road section is greater than a preset threshold value, and sending the traffic facility change content to a terminal of the first target user.
Suppose that the user u sets up routes in the set time period T as
The probability of passing a certain road segment/can be calculated as follows:
wherein, Nu,T,lAs a set of routes
The number of times the middle route passes through the section l;
the total number of times all routes the user has traversed during the time period T.
For example, if the user passes 3 routes in total in the time period T, and the number of times of passing each route is 5, 3, and 2, respectively, then
Is 10; if the first route includes road segment 1, Nu,T,lIs 5.
If the calculated travel coverage probability of the target one-way road section is greater than the preset threshold value, the user u can be determined as an affected user, namely the first target user, and the traffic facility change content is sent to the mobile terminal or the vehicle-mounted terminal of the user u in time in a pushing mode. Therefore, users who probably pass through the target one-way road section can be automatically found, the traffic facility change information is pushed to the users in time, the users can take corresponding emergency measures in advance, and delay of the journey is avoided. The preset threshold value may be set individually based on the sensitivity of different users to traffic facility changes, which is not limited in this embodiment of the present application.
S206, determining at least one second target user in a set range around the target one-way road section according to the real-time positioning information of each user, and sending the traffic facility change content to the terminal of the second target user.
After the target one-way road section of the traffic facility to be changed is determined, a second target user which is likely to pass through the target one-way road section in the future is found according to the positioning information, the traffic facility change content is sent to a terminal of the second target user, the terminal can perform path planning and the like for the second target user again according to the change content, delay of a route is avoided, and meanwhile unnecessary congestion can be avoided. The setting range is not limited in any way in the embodiment of the present application.
According to the technical scheme of the embodiment of the application, the relation road section representing the traffic relation between the two one-way road sections is constructed, the optimal traffic flow plan is obtained based on the system optimal model, then the optimal traffic flow plan is compared with the historical flow of a user, the target relation road section meeting the change condition and the target one-way road section driving into the target relation road section can be determined, and finally the purpose of dynamically regulating and controlling the traffic facilities and the traffic flow is achieved by regulating the traffic facilities of the target one-way road section and displaying the change content of the traffic facilities, so that the traffic pressure is regulated, the traffic jam is reduced, and the driving safety is ensured. Meanwhile, users who possibly pass through the target one-way road section can be automatically identified, the changed content is pushed to the users in time, delay of the journey is avoided, and the effect of leading the flow in advance is achieved.
Fig. 4 is a schematic structural diagram of a traffic facility control device according to an embodiment of the present application, which is applicable to a case where traffic facilities on a road are controlled, and content of a traffic facility change is determined and displayed, and relates to intelligent transportation and a big data technology. The device can realize the traffic facility control method in any embodiment of the application. As shown in fig. 4, the apparatus 300 specifically includes:
a historical data acquisition module 301, configured to acquire historical travel data of a user in a set time period in a traffic network;
an optimized flow calculation module 302, configured to calculate, according to historical travel data, an optimized flow of each road segment in the traffic network based on the system optimal model, where the road segments include one-way road segments and relationship road segments, and the relationship road segments represent a traffic relationship between two connected one-way road segments;
the comparison module 303 is configured to compare the optimized flow and the historical flow of each relationship road segment within a set time period, and determine a target relationship road segment of which the comparison result meets the change condition and a target one-way road segment entering the target relationship road segment;
and the change content determining module 304 is configured to determine the traffic facility change content of the target one-way road segment according to the traffic relationship represented by the target relationship road segment, and send the traffic facility change content to the traffic facility set on the target one-way road segment for display.
Optionally, the traffic network is represented by a directed graph; the directed edges in the directed graph represent road sections, each intersection in the traffic network represents a plurality of nodes in the directed graph, each node represents an end point of the road section connecting the intersections, and the nodes are connected through the directed edges.
Optionally, the historical travel data includes at least one data set, and each data set includes a starting point and an ending point, an ID and a route flow of at least one route between the starting point and the ending point, and an ID and a road section flow of at least one road section in each route;
and the road section flow is the sum of the route flows of all the routes passing through the road section in the data set to which the road section belongs.
Optionally, the optimization objective of the system optimal model is as follows: the total travel time of all vehicles on the traffic network is minimal, and the travel time is represented by the travel time of any road segment under its segment traffic.
Optionally, the changing conditions include: the historical flow exceeds the optimized flow by preset times.
Optionally, the system further includes a first information recommendation module, specifically configured to:
determining the travel coverage probability of each road section of each user in a set time period according to historical travel data;
and determining at least one first target user of which the travel coverage probability of the target one-way road section is greater than a preset threshold value, and sending the traffic facility change content to a terminal of the first target user.
Optionally, the system further includes a second information recommendation module, specifically configured to:
and determining at least one second target user in a set range around the target one-way road section in the current driving route according to the real-time positioning information of each user, and sending the traffic facility change content to the terminal of the second target user.
The traffic facility control device 300 provided by the embodiment of the present application can execute the traffic facility control method provided by any embodiment of the present application, and has the corresponding functional modules and beneficial effects of the execution method. Reference may be made to the description of any method embodiment of the present application for details not explicitly described in this embodiment.
According to an embodiment of the present application, an electronic device and a readable storage medium are also provided.
As shown in fig. 5, it is a block diagram of an electronic device of a traffic facility control method according to an embodiment of the present application. 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 present application that are described and/or claimed herein.
As shown in fig. 5, the electronic apparatus includes: one or more processors 401, memory 402, and interfaces for connecting the various components, including high-speed interfaces and low-speed interfaces. The various components are interconnected using different buses and may be mounted on a common motherboard or in other manners as desired. The processor may process instructions for execution within the electronic device, including instructions stored in or on the memory to display graphical information of a GUI on an external input/output apparatus (such as a display device coupled to the interface). In other embodiments, multiple processors and/or multiple buses may be used, along with multiple memories and multiple memories, as desired. Also, multiple electronic devices may be connected, with each device providing portions of the necessary operations (e.g., as a server array, a group of blade servers, or a multi-processor system). In fig. 5, one processor 401 is taken as an example.
The memory 402, which is a non-transitory computer-readable storage medium, may be used to store non-transitory software programs, non-transitory computer-executable programs, and modules, such as program instructions/modules corresponding to the transportation facility control method in the embodiment of the present application (for example, the historical data acquisition module 301, the optimized flow calculation module 302, the comparison module 303, and the alteration content determination module 304 shown in fig. 4). The processor 401 executes various functional applications of the server and data processing by running non-transitory software programs, instructions, and modules stored in the memory 402, that is, implements the transportation facility control method in the above-described method embodiment.
The memory 402 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to use of an electronic device that implements the traffic facility control method of the embodiment of the present application, and the like. Further, the memory 402 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory 402 may optionally include memory located remotely from the processor 401, and these remote memories may be connected via a network to electronic devices implementing the transportation control methods of embodiments of the present application. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The electronic device for implementing the traffic facility control method according to the embodiment of the present application may further include: an input device 403 and an output device 404. The processor 401, the memory 402, the input device 403 and the output device 404 may be connected by a bus or other means, and fig. 5 illustrates an example of a connection by a bus.
The input device 403 may receive input numeric or character information and generate key signal inputs related to user settings and function control of an electronic device implementing the traffic facility control method of the embodiments of the present application, such as an input device such as a touch screen, a keypad, a mouse, a track pad, a touch pad, a pointing stick, one or more mouse buttons, a track ball, a joystick, or the like. The output devices 404 may include a display device, auxiliary lighting devices (e.g., LEDs), and haptic feedback devices (e.g., vibrating motors), among others. The display device may include, but is not limited to, a Liquid Crystal Display (LCD), a Light Emitting Diode (LED) display, and a plasma display. In some implementations, the display device can be a touch screen.
Various implementations of the systems and techniques described here can be realized in digital electronic circuitry, integrated circuitry, application specific ASICs (application specific integrated circuits), 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.
These computer programs (also known as programs, software applications, or code) include machine instructions for a programmable processor, and may be implemented using high-level procedural and/or object-oriented programming languages, and/or assembly/machine languages. As used herein, the terms "machine-readable medium" and "computer-readable medium" refer to any computer program product, apparatus, and/or device (e.g., magnetic discs, optical disks, memory, Programmable Logic Devices (PLDs)) used to provide machine instructions and/or data to a programmable processor, including a machine-readable medium that receives machine instructions as a machine-readable signal. The term "machine-readable signal" refers to any signal used to provide machine instructions and/or data to a programmable processor.
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 can 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), the internet, and blockchain networks.
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.
According to the technical scheme of the embodiment of the application, the relation road section representing the traffic relation between the two one-way road sections is constructed, the optimal traffic flow plan is obtained based on the system optimal model, then the target relation road section meeting the change condition and the target one-way road section of the driving-in target relation road section can be determined by comparing the optimal traffic flow plan with the historical flow of the user, and finally the purpose of dynamically regulating and controlling the traffic facilities and the traffic flow is achieved by regulating the traffic facilities of the target one-way road section and displaying the change content of the traffic facilities, so that the traffic pressure is regulated, the traffic jam is reduced, and the driving safety is ensured. Meanwhile, users who possibly pass through the target one-way road section can be automatically identified, the changed contents are pushed to the users in time, delay of the journey is avoided, and the effect of leading the flow in advance is achieved.
It should be understood that various forms of the flows shown above, reordering, adding or deleting steps, may be used. For example, the steps described in the present application may be executed in parallel, sequentially, or in different orders, and the present invention is not limited thereto as long as the desired results of the technical solutions disclosed in the present application can be achieved.
The above-described embodiments should not be construed as limiting the scope of the present application. 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 application shall be included in the protection scope of the present application.
Claims (14)
1. A transportation facility control method comprising:
acquiring historical travel data of a user in a traffic network within a set time period, wherein the traffic network is represented by a directed graph; the directed edges in the directed graph represent road sections, each intersection in the traffic network represents a plurality of nodes in the directed graph, each node represents an end point of the road section connecting the intersections, and the nodes are connected through the directed edges;
calculating the optimized flow of each road section in the traffic network based on a system optimal model according to the historical travel data, wherein the road sections comprise one-way road sections and relation road sections, and the relation road sections represent the traffic relation between two connected one-way road sections;
comparing the optimized flow and the historical flow of each relation road section in the set time period, determining a target relation road section of which the comparison result meets the change condition, and determining a target one-way road section which enters the target relation road section according to the directed graph;
determining the traffic facility change content of the target one-way road section according to the traffic relation represented by the target relation road section, and sending the traffic facility change content to the traffic facility arranged on the target one-way road section for display;
the traffic facility is an intelligent traffic terminal and comprises a 5G networking module, LED display equipment, a sensor and a solar panel.
2. The method of claim 1, wherein the historical travel data comprises at least one data set, each data set comprising a start point and an end point, an ID and route traffic for at least one route between the start point and the end point, and an ID and road segment traffic for at least one road segment in each route;
and the road section flow is the sum of the route flows of all routes passing through the road section in the data set to which the road section belongs.
3. The method of claim 1, wherein the optimization objectives of the system optimization model are: the total travel time of all vehicles on the traffic network is minimal, the travel time being represented by the travel time of any road segment at its segment flow.
4. The method of claim 1, wherein the altering conditions comprise: the historical flow exceeds the optimized flow by preset times.
5. The method of claim 1, further comprising:
determining the travel coverage probability of each user in each road section within the set time period according to the historical travel data;
and determining at least one first target user of which the travel coverage probability of the target one-way road section is greater than a preset threshold value, and sending the traffic facility change content to a terminal of the first target user.
6. The method of claim 1, further comprising:
and determining at least one second target user in a set range around the target one-way road section according to the real-time positioning information of each user, and sending the traffic facility change content to the terminal of the second target user.
7. A transportation facility control apparatus comprising:
the historical data acquisition module is used for acquiring historical travel data of a user in a traffic network within a set time period, and the traffic network is represented by a directed graph; the directed edges in the directed graph represent road sections, each intersection in the traffic network represents a plurality of nodes in the directed graph, each node represents an end point of the road section connecting the intersections, and the nodes are connected through the directed edges;
the optimized flow calculation module is used for calculating the optimized flow of each road section in the traffic network based on a system optimal model according to the historical travel data, wherein the road sections comprise one-way road sections and relation road sections, and the relation road sections represent the traffic relation between two connected one-way road sections;
the comparison module is used for comparing the optimized flow and the historical flow of each relation road section in the set time period, determining a target relation road section of which the comparison result meets the change condition, and determining a target one-way road section which enters the target relation road section according to the directed graph;
the change content determining module is used for determining the traffic facility change content of the target one-way road section according to the traffic relation represented by the target relation road section, and sending the traffic facility change content to the traffic facility arranged on the target one-way road section for display;
the traffic facility is an intelligent traffic terminal and comprises a 5G networking module, LED display equipment, a sensor and a solar panel.
8. The apparatus of claim 7, wherein the historical travel data comprises at least one data set, each data set comprising a start point and an end point, an ID and route traffic for at least one route between the start point and the end point, and an ID and road segment traffic for at least one road segment in each route;
and the road section flow is the sum of the route flows of all routes passing through the road section in the data set to which the road section belongs.
9. The apparatus of claim 7, wherein the optimization objectives of the system optimization model are: the total travel time of all vehicles on the traffic network is minimal, which is represented by the travel time of any road segment at its segment flow.
10. The apparatus of claim 7, wherein the altering conditions comprise: the historical flow exceeds the optimized flow by preset times.
11. The apparatus of claim 7, further comprising a first information recommendation module, specifically configured to:
determining the travel coverage probability of each user in each road section within the set time period according to the historical travel data;
and determining at least one first target user of which the travel coverage probability of the target one-way road section is greater than a preset threshold value, and sending the traffic facility change content to a terminal of the first target user.
12. The apparatus according to claim 7, further comprising a second information recommendation module, specifically configured to:
and determining at least one second target user in a set range around the target one-way road section according to the real-time positioning information of each user, and sending the traffic facility change content to the terminal of the second target user.
13. 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 transportation facility control method of any of claims 1-6.
14. A non-transitory computer-readable storage medium storing computer instructions for causing a computer to execute the transportation facility control method according to any one of claims 1 to 6.
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| CN114463981A (en) | 2022-05-10 |
| CN114463982B (en) | 2023-09-29 |
| CN111768624B (en) | 2022-02-15 |
| CN114463982A (en) | 2022-05-10 |
| CN114463983B (en) | 2023-04-14 |
| CN111768624A (en) | 2020-10-13 |
| CN114463981B (en) | 2023-05-23 |
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