CN111223310B - Information processing method and device and electronic equipment - Google Patents

Information processing method and device and electronic equipment Download PDF

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CN111223310B
CN111223310B CN202010023549.8A CN202010023549A CN111223310B CN 111223310 B CN111223310 B CN 111223310B CN 202010023549 A CN202010023549 A CN 202010023549A CN 111223310 B CN111223310 B CN 111223310B
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intersection
target
delay
traffic
delay index
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CN111223310A (en
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于津强
张茂雷
吴田田
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Alibaba Group Holding Ltd
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Alibaba Group Holding Ltd
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    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/07—Controlling traffic signals
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00—Administration; Management
    • G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
    • G06Q10/063—Operations research, analysis or management
    • G06Q10/0639—Performance analysis of employees; Performance analysis of enterprise or organisation operations
    • G06Q10/06393—Score-carding, benchmarking or key performance indicator [KPI] analysis
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
    • G06Q50/10—Services
    • G06Q50/26—Government or public services
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/07—Controlling traffic signals
    • G08G1/081—Plural intersections under common control

Abstract

The invention discloses an information processing method, an information processing device and electronic equipment, wherein the method comprises the following steps: acquiring traffic information of at least one reference intersection in a target area of a preset area and traffic information of a target intersection having a set area relationship with the target area; determining a delay index of a new area formed by the target area and the target intersection under the condition that the target intersection is not divided into the target area according to the traffic information of the reference intersection and the traffic information of the target intersection, and taking the delay index as a first delay index; determining a delay index of a new region as a second delay index under the condition that the target intersection is divided into the target region according to the traffic information of the reference intersection and the traffic information of the target intersection; and determining whether the target intersection is divided into target areas or not according to the first delay index and the second delay index.

Description

Information processing method and device and electronic equipment
Technical Field
The present invention relates to the field of traffic control technologies, and in particular, to an information processing method, an information processing apparatus, an electronic device, and a computer-readable medium.
Background
The green wave control of traffic signals at urban intersections generally refers to the coordinated control of traffic signals at several successive intersections within a target area. The purpose is to make the vehicles running at the crossroads in the target area pass through each crossroad in the target area without meeting red light or with less red light. The traffic signal coordination control method is called "green band" control, in which green lights advance like waves to form green waves in view of the light colors at intersections in the controlled target area. If the green wave band exists, the traffic flow which is kept smooth preferentially can pass through the target area by one green light, and the residence time at the intersection is reduced as much as possible.
The traffic signal optimization product needs to perform timing optimization and coordination control on the traffic signal lamps in the whole area. When signal coordination control is carried out, an area with a large range is often required to be divided into a plurality of relatively independent target areas. Each target area may implement a corresponding control scheme based on the respective traffic characteristics. The division of the target area is beneficial to executing a flexible control strategy, so that the best control effect can be obtained in the blocks with different traffic characteristics.
The traditional target area is divided by experience manually. However, the method for manually dividing the target area is based on personal experience, has no quantitative index, and is difficult to judge the quality of the division result. Moreover, the manual partitioning method inevitably takes care of the other and is difficult to achieve global optimization.
Disclosure of Invention
An object of the present invention is to provide a new technical solution for dividing a target area.
According to a first aspect of the present invention, there is provided an information processing method including:
acquiring traffic information of at least one reference intersection in a target area of a preset area and traffic information of a target intersection having a set area relationship with the target area; the traffic information is information influencing the traffic state of the preset area;
determining a delay index of a new area formed by the target area and the target intersection under the condition that the target intersection is not divided into the target area according to the traffic information of the reference intersection and the traffic information of the target intersection, and taking the delay index as a first delay index; the delay index is used for representing the delay condition of the corresponding area;
determining a delay index of the new area as a second delay index under the condition that the target intersection is divided into the target area according to the traffic information of the reference intersection and the traffic information of the target intersection;
and determining whether the target intersection is divided into the target area or not according to the first delay index and the second delay index.
Optionally, the traffic information includes a signal cycle duration, a split ratio of each phase, a traffic direction of each phase, a traffic flow of each traffic direction in a set time period, a phase difference between the traffic direction and the corresponding upstream junction, and a traffic time between the traffic direction and the upstream junction.
Optionally, the determining, according to the traffic information of the reference intersection and the traffic information of the target intersection, a delay indicator of a new area formed by the target area and the target intersection when the target intersection is not divided into the target area includes, as a first delay indicator:
determining a delay index of the target intersection according to the traffic information of the target intersection;
determining a delay index of the target area according to the traffic information of each reference intersection;
and obtaining the first delay index according to the delay index of the target intersection and the delay index of the target area.
Optionally, the determining the delay indicator of the target intersection according to the traffic information of the target intersection includes:
for each traffic flow direction of the target intersection, determining a delay index corresponding to the traffic flow direction according to the green signal ratio of the phase, the traffic flow in a set time period and the signal cycle duration of the target intersection;
and obtaining the delay index of the target intersection according to the delay index of each traffic flow direction of the target intersection.
Optionally, the determining the delay indicator of the target area according to the traffic information of each reference intersection includes:
determining whether each traffic flow direction of each reference intersection is coordinated or not according to the traffic flow direction of the reference intersection and the signal period duration;
for each uncoordinated traffic flow direction, determining a delay index corresponding to the uncoordinated traffic flow direction according to the green signal ratio of the phase, the traffic flow in the set time period and the signal cycle duration of the reference intersection;
for each coordinated traffic flow direction, determining a delay index corresponding to the coordinated traffic flow direction according to the split green ratio of the corresponding upstream intersection, the split green ratio of the corresponding reference intersection, the phase difference between the corresponding reference intersection and the corresponding upstream intersection, the traffic time between the corresponding upstream intersection, the traffic flow in the set time period and the signal cycle duration of the corresponding reference intersection;
and determining the delay indexes of the target area according to the delay indexes of each uncoordinated traffic flow direction and the delay indexes of each coordinated traffic flow direction.
Optionally, for each coordinated traffic flow direction, determining a delay indicator corresponding to the coordinated traffic flow direction according to the split green ratio of the corresponding upstream intersection, the split green ratio of the corresponding reference intersection, the phase difference between the corresponding reference intersection and the corresponding upstream intersection, the traffic time between the corresponding upstream intersection, the traffic flow within the set time period, and the signal cycle duration of the corresponding reference intersection includes:
for each coordinated traffic flow direction, determining delay duration corresponding to the coordinated traffic flow direction according to the split green ratio of the corresponding upstream intersection, the split green ratio of the reference intersection to which the coordinated traffic flow direction belongs, the phase difference between the corresponding reference intersection and the corresponding upstream intersection, the traffic time between the corresponding upstream intersection and the signal cycle duration of the corresponding reference intersection;
and for each coordinated traffic flow direction, determining a delay index corresponding to the coordinated traffic flow direction according to the delay time length, the traffic flow in the set time period and the signal cycle time length of the corresponding reference intersection.
Optionally, the determining, according to the traffic information of the reference intersection and the traffic information of the target intersection, that the second delay indicator of the new area is in the case of dividing the target intersection into the target area includes:
and determining a delay index of the new area as the second delay index according to the traffic information of each reference intersection by taking the target intersection as the reference intersection of the new area.
Optionally, the method further includes:
and taking the intersection with the longest signal cycle time in the preset area as the reference intersection in the target area.
Optionally, the determining, according to the first delay indicator and the second delay indicator, whether to divide the target intersection into the target area includes:
when the first delay index is less than or equal to the second delay index, the target intersection is not divided into the target area;
and under the condition that the first delay index is larger than the second delay index, dividing the target intersection into the target area.
Optionally, the method further includes:
and under the condition that the first delay index is larger than the second delay index and the target intersection is divided into the target areas, taking a new area formed by the target areas and the target intersection as a target area and taking the target intersection as a reference intersection of the new area.
Optionally, the method further includes:
and when the first delay index is smaller than or equal to the second delay index and the target intersection is not divided into the target area, taking the target intersection as a reference intersection in another target area.
Optionally, the method further includes:
and traversing all intersections in the preset area, respectively serving as the target intersections, and dividing the preset area into a plurality of target areas.
Optionally, the method further includes:
and respectively carrying out traffic control on the corresponding target areas according to the traffic information of each target area.
Optionally, the step of performing traffic control on the corresponding target area according to the traffic information of each target area includes:
determining a target phase difference corresponding to at least one phase of a plurality of intersections in each target area according to the traffic information of each target area;
and respectively carrying out traffic control on the corresponding target areas according to the target phase difference of at least one phase of the intersections in each target area.
Optionally, the set area relationship includes intersections that are adjacent to each other, are within a preset distance from each other, and are not more than a preset number of intersections.
According to a second aspect of the present invention, there is provided an information processing apparatus comprising:
the information acquisition module is used for acquiring traffic information of at least one reference intersection in a target area of a preset area and traffic information of a target intersection having a set area relationship with the target area; the traffic information is information influencing the traffic state of the preset area;
a first index determining module, configured to determine, according to the traffic information of the reference intersection and the traffic information of the target intersection, a delay index of a new area formed by the target area and the target intersection when the target intersection is not divided into the target area, as a first delay index; the delay index is used for representing the delay condition of the corresponding area;
a second index determining module, configured to determine, according to the traffic information of the reference intersection and the traffic information of the target intersection, a delay index of the new area as a second delay index when the target intersection is divided into the target area;
and the intersection dividing module is used for determining whether the target intersection is divided into the target area or not according to the first delay index and the second delay index.
According to a third aspect of the invention, there is provided an electronic device comprising an apparatus according to the second aspect of the invention; or comprises a processor and a memory for storing executable instructions for controlling the processor to perform the method according to the first aspect of the invention.
According to a fourth aspect of the present invention, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, performs the method according to the first aspect of the present invention.
In the embodiment of the invention, whether the target intersection is divided into the target areas or not is determined according to the traffic information of at least one reference intersection in the target areas of the preset areas and the traffic information of the target intersection having the set area relationship with the target areas. The preset area can be divided into at least one target area by comprehensively considering the traffic information of each intersection in the preset area, so that the dividing quality can be improved, and the global optimization is achieved. In addition, the defects that the manual segmentation area lacks quantitative basis, cannot be copied in a large scale and cannot achieve global optimization can be overcome.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a block diagram of one example of a hardware configuration of an electronic device that can be used to implement an embodiment of the present invention.
FIG. 2 is a block diagram of another example of a hardware configuration of an electronic device that may be used to implement an embodiment of the invention;
FIG. 3 is a flow diagram illustrating an information processing method according to an embodiment of the present invention;
fig. 4 is a schematic diagram of an information processing method performed by a preset area according to an embodiment of the present invention;
FIG. 5 is a flowchart illustrating an example of an information processing method according to an embodiment of the present invention;
FIG. 6 is a functional block diagram of an information processing apparatus according to an embodiment of the present invention;
FIG. 7 is a functional block diagram of an electronic device provided in accordance with a first embodiment of the present invention;
fig. 8 is a schematic diagram of a hardware structure of an electronic device according to a second embodiment of the present invention.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be discussed further in subsequent figures.
< hardware configuration >
Fig. 1 and 2 are block diagrams of hardware configurations of an electronic apparatus 1000 that can be used to implement an information processing method of any embodiment of the present invention.
In one embodiment, as shown in FIG. 1, the electronic device 1000 may be a server 1100.
The server 1100 provides a service point for processes, databases, and communications facilities. The server 1100 can be a unitary server or distributed servers across multiple computers or computer data centers. The server may be of various types, such as, but not limited to, a web server, a news server, a mail server, a message server, an advertisement server, a file server, an application server, an interaction server, a database server, or a proxy server. In some embodiments, each server may include hardware, software, or embedded logic components or a combination of two or more such components for performing the appropriate functions supported or implemented by the server. For example, a server, such as a blade server, a cloud server, etc., or may be a server group consisting of a plurality of servers, which may include one or more of the above types of servers, etc.
In this embodiment, the server 1100 may include a processor 1110, a memory 1120, an interface device 1130, a communication device 1140, a display device 1150, and an input device 1160, as shown in fig. 1.
In this embodiment, the server 1100 may also include a speaker, a microphone, and the like, which are not limited herein.
The processor 1110 may be a dedicated server processor, or may be a desktop processor, a mobile version processor, or the like that meets performance requirements, and is not limited herein. The memory 1120 includes, for example, a ROM (read only memory), a RAM (random access memory), a nonvolatile memory such as a hard disk, and the like. The interface device 1130 includes various bus interfaces such as a serial bus interface (including a USB interface), a parallel bus interface, and the like. The communication device 1140 is capable of wired or wireless communication, for example. The display device 1150 is, for example, a liquid crystal display panel, an LED display panel touch panel, or the like. Input devices 1160 may include, for example, a touch screen, a keyboard, and the like.
In this embodiment, the memory 1120 of the server 1100 is configured to store instructions for controlling the processor 1110 to operate at least to perform the information processing method according to any embodiment of the present invention. The skilled person can design the instructions according to the disclosed solution. How the instructions control the operation of the processor is well known in the art and will not be described in detail herein.
Although shown as multiple devices in fig. 1, the present invention may relate to only some of the devices, e.g., server 1100 may relate to only memory 1120 and processor 1110.
In one embodiment, the electronic device 1000 may be a terminal device 1200 such as a PC, a notebook computer, or the like used by an operator, which is not limited herein.
In this embodiment, referring to fig. 2, the terminal device 1200 may include a processor 1210, a memory 1220, an interface means 1230, a communication means 1240, a display means 1250, an input means 1260, a speaker 1270, a microphone 1280, and the like.
The processor 1210 may be a mobile version processor. The memory 1220 includes, for example, a ROM (read only memory), a RAM (random access memory), a nonvolatile memory such as a hard disk, and the like. The interface device 1230 includes, for example, a USB interface, a headphone interface, and the like. The communication device 1240 may be, for example, capable of wired or wireless communication, the communication device 1240 may include a short-range communication device, such as any device that performs short-range wireless communication based on short-range wireless communication protocols, such as the Hilink protocol, WiFi (IEEE 802.11 protocol), Mesh, Bluetooth, ZigBee, Thread, Z-Wave, NFC, UWB, LiFi, and the like, and the communication device 1240 may also include a long-range communication device, such as any device that performs WLAN, GPRS, 2G/3G/4G/5G long-range communication. The display device 1250 is, for example, a liquid crystal display, a touch display, or the like. The input device 1260 may include, for example, a touch screen, a keyboard, and the like. A user can input/output voice information through the speaker 1270 and the microphone 1280.
In this embodiment, the memory 1220 of the terminal device 1200 is used to store instructions for controlling the processor 1210 to operate to perform at least the information processing method according to any of the embodiments of the present invention. The skilled person can design the instructions according to the disclosed solution. How the instructions control the operation of the processor is well known in the art and will not be described in detail here.
Although a plurality of devices of the terminal apparatus 1200 are shown in fig. 2, the present invention may relate only to some of the devices, for example, the terminal apparatus 1200 relates only to the memory 1220 and the processor 1210 and the display device 1250.
< method examples >
In the present embodiment, an information processing method is provided. The segmentation method may be implemented by an electronic device. The electronic device may be the server 1100 as shown in fig. 1 or the terminal device 1200 as shown in fig. 2.
As shown in fig. 3, the information processing method of the present embodiment may include steps S3100 to S3400 of:
step S3100, acquiring traffic information of at least one reference intersection in a target area of a preset area and traffic information of a target intersection having a set area relationship with the target area.
In one embodiment of the present invention, the traffic objects moving in the preset area may include vehicles such as automobiles, electric vehicles, bicycles, motorcycles, logistics vehicles, or unmanned vehicles.
In one embodiment of the present invention, the traffic information may be data affecting a traffic state of a preset area.
Specifically, the traffic information may include a signal cycle duration, a split ratio of each phase, a traffic direction of each phase, a traffic flow of each traffic direction within a set period of time, a phase difference with the corresponding upstream junction, and a traffic time with the corresponding upstream junction.
The upstream intersection in this embodiment is with respect to the corresponding direction of traffic. For any reference intersection, the intersection positioned before the reference intersection in the corresponding traffic flow direction is the upstream intersection of the reference intersection in the corresponding traffic flow direction.
The phase of the signal in the present invention is known in the art. For example, it may include that within a signal cycle, a sequence of signal states of one or several traffic flows with the same signal light color is called a signal phase. The signal phases are divided according to the time sequence of the signal display obtained by the traffic flow, and there are many phases in different time sequences. Each control state corresponds to a different set of lamp color combinations, called a phase. In short, one phase is also referred to as one control state. For another example, the signal display states corresponding to a group of traffic flows which do not conflict with each other and simultaneously obtain the right of way may be referred to as signal phases. It can be seen that the signal phases are divided according to the alternation of the right of way in the intersection within one signal cycle.
The signal period duration comprises the time required for the signal to run for one cycle, including the change of the signal lamp, and is equal to the sum of the green, yellow and red lamp times; and also equal to the sum of the green and yellow lamp times (which are typically fixed) required for all phases. In this embodiment, to ensure that the phase difference between intersections in the preset area is constant, the signal cycle durations of the intersections in the preset area may be set to be equal.
The split ratio is the proportional time available for the vehicle to pass through during one period of the signal light. I.e. the ratio of the green time of a certain phase to the period duration.
The green time in this embodiment may be an actual green time or an effective green time. The actual green light time may be the time taken for the green light to turn on until the green light is turned off. The effective green light time includes the actual vehicle transit time that is effectively utilized. It is equal to the sum of the green and yellow times minus the lost time. The lost time comprises two parts, namely the time when the green light signal is turned on and the vehicle is started; when the green light is turned off and the yellow light is turned on, only the vehicle passing the stop line can pass continuously, so that a part of the lost time is the delay time of the acceleration ending of the actual green light time minus the starting time. The end lag time is the fraction of the yellow lamp time that is effectively utilized. The loss time for each phase is the difference between the start delay time and the end delay time.
Phase difference: the two signal intersections refer to the difference between the start times of green lights (or red lights) of two adjacent intersections in the same phase.
The traffic time from an upstream intersection to the reference intersection in either direction of traffic flow may include: and the automobile running in the corresponding traffic flow direction does not stop running from the corresponding upstream intersection to the reference intersection according to the preset running speed.
In one embodiment of the present invention, the traffic time from the corresponding upstream junction to the reference junction can be determined according to the distance and the driving speed between the reference junction and the corresponding upstream junction. The driving speed between the reference intersection and the corresponding upstream intersection may be a maximum driving speed between the reference intersection and the corresponding upstream intersection, or an average driving speed between the reference intersection and the corresponding upstream intersection. The average travel speed may be an average of a maximum travel speed and a minimum travel speed between the reference intersection and the corresponding upstream intersection. The maximum driving speed and/or the minimum driving speed can be set according to the speed limit condition in the actual road condition and can be marked on the speed limit board of the actual road in advance.
In another embodiment of the present invention, the traffic time between the reference intersection and the corresponding upstream intersection may also be extracted from the historical vehicle travel track corresponding to the traffic flow direction.
The above definitions are only for illustrating specific embodiments of the present invention and are not to be construed as limiting the scope of the invention.
In an embodiment of the present invention, setting the region relationship may include adjacent intersections, which are within a preset distance from each other, or which are not more than a preset number of intersections apart from each other.
In one embodiment of the present invention, the reference intersection is an intersection included in the target area.
In the preset area shown in fig. 4, each node represents an intersection, and then the intersections included in the target area include intersection 3, intersection 4, intersection 6, intersection 8, and intersection 9, and intersection 3, intersection 4, intersection 6, intersection 8, and intersection 9 are all reference intersections.
In the embodiment where the set region relationship includes adjacency, since intersection 2 is adjacent to intersection 3, intersection 5 is adjacent to intersection 6, and intersection 7 is adjacent to intersection 8, intersections 2, 5, and 7 are intersections adjacent to the target region, and any one of intersections 2, 5, and 7 can be a target intersection. At least one intersection is separated between the intersection 1, the intersection 11 and the intersection 10 and the reference intersection in the target area, so the intersection 1, the intersection 11 and the intersection 10 cannot be used as target intersections.
In an embodiment where the setting of the relationship includes that the distance is within a preset distance, the preset distance may be set in advance according to an application scenario or a specific requirement. Under the conditions that the distances between the intersections 1, 2 and 3 are within the preset distance, the distance between the intersection 5 and 6 is within the preset distance, and the distance between the intersection 7 and 8 is within the preset distance, the intersections 1, 2, 5 and 7 are all intersections within the preset distance from the target area, and any one of the intersections 1, 2, 5 and 7 can be used as a target intersection. The distance between the intersection 11 and the intersection 10 and each reference intersection in the target area is outside the preset distance, and therefore, the intersection 11 and the intersection 10 cannot be the target intersection.
In the embodiment where the setting relationship includes that the distance between intersections does not exceed the preset number, the preset number may be set in advance according to an application scenario or specific requirements, for example, the preset number may be 1. Then, under the condition that the preset number is 1, the distance between the intersection 1 and the intersection 2 and the intersection 3 is not more than the preset number of intersections, the distance between the intersection 5 and the intersection 6 is not more than the preset number of intersections, and the distance between the intersection 10 and the intersection 7 and the intersection 8 is not more than the preset number of intersections, so that the intersections with the distance between the intersection 1, the intersection 2, the intersection 5, the intersection 7 and the intersection 10 and the target area are not more than the preset number of intersections, and any one of the intersections 1, the intersection 2, the intersection 5, the intersection 7 and the intersection 10 can be used as a target intersection. The number of intersections between the intersection 11 and each reference intersection in the target area exceeds a preset number, and therefore, the intersection 11 cannot be a target intersection.
In the present embodiment, the intersection 7 may be a target intersection. If all intersections in the preset area are not divided, the intersection with the longest signal period time can be used as a reference intersection in the target area, and any intersection having a set area relationship with the reference intersection can be used as the target intersection. In this case, only one reference intersection may be included in the target area.
Step S3200, determining, as a first delay indicator, a delay indicator of a new area formed by the target area and the target intersection when the target intersection is not divided into the target areas, based on the traffic information of the reference intersection and the traffic information of the target intersection.
The delay index may be used to indicate a delay condition of the corresponding area.
In an embodiment of the present invention, the manner of determining the first delay indicator may include steps S3210 to S3230 as follows:
step S3210, determining a delay indicator of the target intersection according to the traffic information of the target intersection.
In an embodiment of the present invention, the step of determining the delay indicator of the target intersection may include steps S3211 to S3212 as follows:
step S3211, for each traffic flow direction at the target intersection, determining a delay index corresponding to the traffic flow direction according to the green-to-green ratio of the phase, the traffic flow within a set time period and the signal cycle duration of the target intersection.
Specifically, the red light duration of each traffic flow direction at the target intersection can be determined according to the green signal ratio of the phase to which each traffic flow direction at the target intersection belongs and the signal cycle duration of the target intersection respectively; and determining a delay index corresponding to the traffic flow direction according to the red light time length, the traffic flow in a set time period and the signal cycle time length of the target intersection for each traffic flow direction of the target intersection.
For example, the green ratio of the phase to which the traffic flow direction m at the target intersection i belongs is Gi,mThe traffic flow of the target intersection in a set time period is fi,mThe signal cycle duration of the target intersection is CiThen, the red light duration R of the traffic flow direction m of the target intersection ii,mCan be Ri,m＝(1-Gi,m)*Ci。
For target intersection iThe traffic direction m is according to the red light time length Ri,mThe flow rate f of the vehicle in the set time periodi,mAnd signal period duration C of target intersectioniDetermining delay index delay of traffic flow direction m of target intersection ii,mCan be expressed as:
Figure BDA0002361658300000121
step S3212, a delay index of the target intersection is obtained according to the delay index of each traffic flow direction of the target intersection.
Specifically, the delay indicators of each traffic flow direction at the target intersection may be summed to obtain the delay indicator of the target intersection.
For example, the delay index of the traffic flow direction m at the target intersection i is delayi,mIf the set of all the traffic directions of the target intersection i is M, the delay index delay of the target intersection iiCan be expressed as:
Figure BDA0002361658300000131
step S3220, according to the traffic information of the reference intersections in the target area, the delay indexes of the target area are determined.
In an embodiment of the present invention, the step of determining the delay indicator of the target area according to the traffic information of the reference intersection in the target area may include steps S3221 to S3224 as follows:
step S3221, according to the traffic flow direction and the signal period duration of the reference intersection, whether each traffic flow direction of each reference intersection is coordinated or not is determined.
Specifically, for each traffic flow direction of each reference intersection, if the signal cycle duration of the upstream intersection of the reference intersection in the vehicle direction is the same as that of the reference intersection, it may be determined that the vehicle direction of the reference intersection is the coordinated traffic flow direction; if the signal period duration of the upstream intersection of the reference intersection in the vehicle direction is different from that of the reference intersection, the vehicle direction of the reference intersection can be determined to be an uncoordinated traffic flow direction.
Thus, all traffic directions of all reference intersections can be split into a set N of coordinated traffic directions and a set L of uncoordinated traffic directions.
Step S3222, for each uncoordinated traffic flow direction, determining a delay indicator corresponding to the uncoordinated traffic flow direction according to the green-to-green ratio of the phase to which the traffic flow is in the set time period, and the signal cycle duration of the reference intersection to which the traffic flow direction belongs.
Specifically, the red light duration of each uncoordinated traffic flow direction can be determined according to the green signal ratio of the phase to which each uncoordinated traffic flow direction belongs and the signal period duration of the target intersection respectively; and for each uncoordinated traffic flow direction, determining a delay index corresponding to the traffic flow direction according to the red light time length, the traffic flow in a set time period and the signal period time length of the reference intersection.
For example, the uncoordinated traffic flow direction l is the traffic flow direction at the reference intersection j, and the green ratio of the phase to which the uncoordinated traffic flow direction l belongs is GlThe traffic flow of the uncoordinated traffic flow direction l in the set time period is flThe signal cycle duration of the target intersection is CjThen, the red light duration R of the uncoordinated traffic direction llCan be Rl＝(1-Gl)*Cj。
For non-coordinated traffic direction l, according to red light duration RlThe flow rate f of the vehicle in the set time periodlAnd signal cycle duration C of the target intersectionjDetermining a delay indicator delay for an uncoordinated traffic direction llCan be expressed as:
Figure BDA0002361658300000141
step S3223, for each coordinated traffic direction, a delay indicator corresponding to the coordinated traffic direction is determined according to the split green ratio of the corresponding upstream intersection, the split green ratio of the corresponding reference intersection, the phase difference between the corresponding reference intersection and the corresponding upstream intersection, the traffic time between the corresponding upstream intersections, the traffic flow within a set time period, and the signal cycle duration of the corresponding reference intersection.
In one embodiment of the present invention, the manner of determining the delay indicator for each coordinated traffic direction may include steps S3223-1 to S3223-2 as follows:
step S3223-1, for each coordinated traffic flow direction, determining a delay duration corresponding to the coordinated traffic flow direction according to the split green ratio of the corresponding upstream intersection, the split green ratio of the reference intersection to which the coordinated traffic flow direction belongs, the phase difference between the corresponding reference intersection and the corresponding upstream intersection, the traffic time between the corresponding upstream intersection, and the signal period duration of the corresponding reference intersection.
For example, the coordinated traffic flow direction n is the traffic flow direction of the reference intersection k, and the green light start time, the green light end time, the red light start time, and the red light end time of the phase to which the reference intersection k where the coordinated traffic flow direction n belongs can be determined according to the green signal ratio of the reference intersection k, the green signal ratio of the corresponding upstream intersection, and the phase difference between the reference intersection and the corresponding upstream intersection.
If the red light end time of the phase of the reference intersection k where the coordinated traffic flow direction n belongs to is expressed as
Figure BDA0002361658300000142
The red light starting time of the phase of the reference intersection k where the coordinated traffic flow direction n belongs to is expressed as
Figure BDA0002361658300000143
The green light starting time of the corresponding upstream crossing is expressed as
Figure BDA0002361658300000144
Express the corresponding upstream crossing green light end time as
Figure BDA0002361658300000145
Let the traffic time from the corresponding upstream intersection to the reference intersection k be tn-upThen, the green light at the upstream intersection is translated into the time period
Figure BDA0002361658300000146
Figure BDA0002361658300000147
Time period of red light with reference intersection k
Figure BDA0002361658300000148
Taking the intersection to obtain the common time period of the two time periods, which is expressed as
Figure BDA0002361658300000149
Wherein, the first and the second end of the pipe are connected with each other,
Figure BDA00023616583000001410
is the start time of the common time period,
Figure BDA00023616583000001411
is the end time of the common time period.
Then, the delay time D for the coordinated traffic direction nnCan be expressed as:
Figure BDA00023616583000001412
step S3223-2, for each coordinated traffic flow direction, determining a delay index corresponding to the coordinated traffic flow direction according to the delay time length, the traffic flow in the set time period and the signal period time length of the corresponding reference intersection.
For example, if the coordinated traffic direction n has a traffic flow f within a set time periodnThe signal period duration of the reference intersection k to which the coordinated traffic flow direction n belongs is CkDuration of delay D in coordinated traffic direction nnThen, the delay index delay of the coordinated traffic flow direction nnCan be expressed as:
Figure BDA0002361658300000151
step S3224 determines a delay index of the target area based on the delay index of each uncoordinated traffic flow direction and the delay index of each coordinated traffic flow direction.
Specifically, the delay index of each uncoordinated traffic direction and the delay index of each coordinated traffic direction may be summed to obtain the delay index of the target area.
For example, the delay index of the uncoordinated traffic flow direction is delaylThe delay index of the coordinated traffic flow direction is delaykThen, the delay index delay of the target region rrCan be expressed as:
Figure BDA0002361658300000152
step S3230, a first delay index of a new area is obtained according to the delay index of the target intersection and the delay index of the target area.
Specifically, the delay index of the target intersection and the delay index of the target area may be summed, and the first delay index of the new area may be used.
For example, the delay index of the target region r is delayrThe delay index of the target intersection i is delayiThen, the first delay indicator delay of the new regionnon-cor(i, r) can be expressed as:
delaynon-cor(i,r)＝delayr+delayi
step S3300, determining a delay index of a new area as a second delay index when the target intersection is divided into the target areas according to the traffic information of the reference intersection and the traffic information of the target intersection.
In the embodiment of the present invention, both the target intersection and the reference intersection of the target area may be used as the reference intersection of the new area, and the second delay indicator of the new area is determined according to the traffic information of the reference intersection of the new area. Determining new regionsSecond delay index delay ofcor(i, r) the delay index delay of the specified target region may be referred to as described aboverThe method of (2) will not be described in detail herein.
And step S3400, determining whether the target intersection is divided into target areas or not according to the first delay index and the second delay index.
Specifically, the first delay index may be smaller than delaynon-cor(i, r) or equal to the second delay measure delaycor(i, r) not dividing the target intersection into target areas; at the first delay indicator delaynon-cor(i, r) is greater than the second delay index delaycor(i, r), the target intersection is divided into target areas.
When the first delay index is larger than the second delay index and the target intersection is divided into the target areas, a new area formed by the target areas and the target intersection can be used as the target area, and the target intersection can be used as a reference intersection of the new area. For example as shown in figure 4.
Furthermore, other non-divided intersections can be selected from the preset area again to serve as target intersections, and the information processing method of the embodiment of the invention is continuously executed to divide intersections.
If the preset area includes at least one target area adjacent to the target intersection and the target intersection is not divided into any target area, the target intersection may be used as a reference intersection in another target area, and the another target area may include only one reference intersection.
According to the information processing method provided by the embodiment of the invention, all intersections in the preset area are traversed to be respectively used as target intersections, so that the preset area can be divided into at least one target area.
Therefore, the preset area can be divided into at least one target area by comprehensively considering the traffic information of each intersection in the preset area, so that the dividing quality can be improved, and the global optimum is achieved. In addition, the defects that the manual segmentation area lacks quantitative basis, cannot be copied in a large scale and cannot achieve global optimization can be overcome.
In this embodiment, the method may further include: and respectively carrying out traffic control on the corresponding target areas according to the traffic information of each target area.
After the preset area is divided, each target area can be independently subjected to traffic control, that is, the phase difference of at least one phase of a plurality of intersections in each target can be respectively controlled, so that each target area can achieve a green wave effect.
Therefore, each target area can execute a corresponding control strategy according to the respective traffic information. The division of the target area is beneficial to executing a flexible control strategy, so that the best control effect can be obtained in the blocks with different traffic characteristics.
In this embodiment, the step of performing traffic control on the corresponding target area according to the traffic information of each target area may further include:
determining a target phase difference corresponding to at least one phase of a plurality of intersections in each target area according to the traffic information of each target area; and respectively carrying out traffic control on the corresponding target areas according to the target phase difference of at least one phase of the plurality of intersections in each target area.
Thus, the phase difference of the intersections in each target area is respectively controlled, so that vehicles on at least one path in each target area can enjoy the green wave effect of continuously passing through a plurality of intersections on the corresponding path without stopping.
< example >
Fig. 5 is an exemplary information processing method, which may include the steps of:
step S5001, acquiring traffic information of at least one reference intersection in a target area of a preset area and traffic information of a target intersection adjacent to the target area.
Step S5002, for each traffic flow direction of the target intersection, determining a delay index corresponding to the traffic flow direction according to the green signal ratio of the phase, the traffic flow in a set time period and the signal cycle duration of the target intersection.
For example, the green ratio of the phase to which the traffic flow direction m at the target intersection i belongs is Gi,mThe traffic flow of the target intersection in a set time period is fi,mThe signal period duration of the target intersection is CiThen, the red light duration R of the traffic flow direction m at the target intersection ii,mCan be Ri,m＝(1-Gi,m)*Ci。
According to the red light time length Ri,mAnd the flow rate f of the vehicle in the set time periodi,mAnd signal period duration C of target intersectioniDetermining the delay index delay of the traffic flow direction m of the target intersection ii,mCan be expressed as:
Figure BDA0002361658300000171
step S5003, obtaining the delay indexes of the target intersection according to the delay indexes of each traffic flow direction of the target intersection.
For example, the delay index of the traffic flow direction m at the target intersection i is delayi,mIf the set of all the traffic flow directions at the target intersection i is M, the delay index delay of the target intersection iiCan be expressed as:
Figure BDA0002361658300000172
step S5004, determining whether each traffic flow direction of each reference intersection is coordinated or not according to the traffic flow direction of the reference intersection and the signal period duration.
For each traffic flow direction of each reference intersection, if the signal cycle duration of the upstream intersection of the reference intersection in the vehicle direction is the same as that of the reference intersection, the vehicle direction of the reference intersection can be determined to be a coordinated traffic flow direction; if the signal period duration of the upstream intersection of the reference intersection in the vehicle direction is different from that of the reference intersection, the vehicle direction of the reference intersection can be determined to be an uncoordinated traffic flow direction. In this way, all traffic directions at all reference intersections can be split into a set N of coordinated traffic directions and a set L of uncoordinated traffic directions.
Step S5005, for each uncoordinated traffic flow direction, determining a delay index corresponding to the uncoordinated traffic flow direction according to the green signal ratio of the phase to which the uncoordinated traffic flow direction belongs, the traffic flow in a set time period and the signal cycle duration of the reference intersection to which the uncoordinated traffic flow direction belongs.
Step S5006, for each coordinated traffic flow direction, determining delay time of the corresponding coordinated traffic flow direction according to the split green ratio of the corresponding upstream intersection, the split green ratio of the corresponding reference intersection to which the coordinated traffic flow direction belongs, the phase difference between the corresponding reference intersection and the corresponding upstream intersection, the traffic time between the corresponding upstream intersection and the signal cycle time of the corresponding reference intersection.
For example, the uncoordinated traffic flow direction l is the traffic flow direction at the reference intersection j, and the green ratio of the phase to which the uncoordinated traffic flow direction l belongs is GlThe traffic flow of the uncoordinated traffic flow direction l in the set time period is flThe signal cycle duration of the target intersection is CjThen, the red light duration R of the uncoordinated traffic direction llCan be Rl＝(1-Gl)*Cj。
For non-coordinated traffic direction l, according to red light duration RlThe flow rate f of the vehicle in the set time periodlAnd signal period duration C of target intersectionjDetermining a delay indicator delay for an uncoordinated traffic direction llCan be expressed as:
Figure BDA0002361658300000181
step S5007, for each coordinated traffic flow direction, determining a delay index corresponding to the coordinated traffic flow direction according to the delay time length, the traffic flow in the set time period and the signal period time length of the corresponding reference intersection.
For example, the coordinated traffic flow direction n is the traffic flow direction of the reference intersection k, and the green light start time, the green light end time, the red light start time, and the red light end time of the phase to which the reference intersection k where the coordinated traffic flow direction n belongs can be determined according to the green signal ratio of the reference intersection k, the green signal ratio of the corresponding upstream intersection, and the phase difference between the reference intersection and the corresponding upstream intersection.
If the red light ending time of the phase of the reference intersection k where the coordinated traffic flow direction n is located is expressed as
Figure BDA0002361658300000182
Expressing the red light starting time of the phase of the reference intersection k where the coordinated traffic flow direction n belongs to as
Figure BDA0002361658300000183
The green light starting time of the corresponding upstream crossing is expressed as
Figure BDA0002361658300000184
Express the corresponding upstream crossing green light end time as
Figure BDA0002361658300000185
Let the traffic time from the corresponding upstream intersection to the reference intersection k be tn-upThen, the green light at the upstream intersection is translated into the time period
Figure BDA0002361658300000191
Figure BDA0002361658300000192
Time period of red light with reference intersection k
Figure BDA0002361658300000193
Taking the intersection to obtain the public time period of the two time periods, which is expressed as
Figure BDA0002361658300000194
Wherein, the first and the second end of the pipe are connected with each other,
Figure BDA0002361658300000195
is the start time of the common time period,
Figure BDA0002361658300000196
is the end time of the common time period.
Then, the delay time D for the coordinated traffic direction nnCan be expressed as:
Figure BDA0002361658300000197
if the coordinated traffic flow direction n is the traffic flow f in the set time periodnThe signal period duration of a reference intersection k to which the coordinated traffic flow direction n belongs is CkDuration of delay D in coordinated traffic direction nnThen, the delay index delay of the coordinated traffic flow direction nnCan be expressed as:
Figure BDA0002361658300000198
step S5008, determining a delay index of the target area according to the delay index of each uncoordinated traffic flow direction and the delay index of each coordinated traffic flow direction.
For example, the delay index of the uncoordinated traffic flow direction is delaylThe delay index of the coordinated traffic flow direction is delaykThen, the delay index delay of the target region rrCan be expressed as:
Figure BDA0002361658300000199
step S5009, obtaining a first delay index of a new area according to the delay index of the target intersection and the delay index of the target area.
For example, the delay index of the target region r is delayrThe delay index of the target intersection i is delayiThen, the first delay indicator delay of the new regionnon-cor(i, r) can be expressed as:
delaynon-cor(i,r)＝delayr+delayi
step S5010 determines a delay index of a new area as a second delay index in a case where the target intersection is divided into the target areas, based on the traffic information of the reference intersection and the traffic information of the target intersection.
For example, the second delay indicator for the new region may be expressed as delaycor(i,r)。
Step S5011, determining whether to divide the target intersection into the target area according to the first delay index and the second delay index.
May be that the first delay index is less than delaynon-cor(i, r) or equal to the second delay indicator delaycor(i, r) not dividing the target intersection into target areas; at the first delay index delaynon-cor(i, r) is greater than the second delay index delaycor(i, r), the target intersection is divided into target areas.
< apparatus embodiment >
In the present embodiment, an information processing apparatus 6000 is provided, as shown in fig. 6, which may include an information acquisition module 6100, a first index determination module 6200, a second index determination module 6300, and an intersection dividing module 6400.
The information acquiring module 6100 is configured to acquire traffic information of at least one reference intersection in a target area of a preset area and traffic information of a target intersection adjacent to the target area; the traffic information is information affecting the traffic state of a preset area.
The first indicator determining module 6200 is configured to determine, as a first delay indicator, a delay indicator of a new area formed by a target area and a target intersection when the target intersection is not divided into the target area according to the traffic information of the reference intersection and the traffic information of the target intersection; the delay index is used for indicating the delay condition of the corresponding area.
The second index determining module 6300 is configured to determine, according to the traffic information of the reference intersection and the traffic information of the target intersection, a delay index of a new area as a second delay index when the target intersection is divided into the target area.
The intersection dividing module 6400 is configured to determine whether to divide the target intersection into the target area according to the first delay indicator and the second delay indicator.
In one embodiment of the invention, the traffic information may include a signal cycle duration, a split ratio of each phase, a traffic direction of each phase, a traffic flow of each traffic direction within a set period, a phase difference with the corresponding upstream junction, and a traffic time with the upstream junction.
In an embodiment of the present invention, the first index determination module 6200 may be further configured to:
determining a delay index of the target intersection according to the traffic information of the target intersection;
determining a delay index of a target area according to the traffic information of each reference intersection;
and obtaining a first delay index according to the delay index of the target intersection and the delay index of the target area.
In one embodiment of the invention, determining the delay indicator of the target intersection according to the traffic information of the target intersection comprises:
for each traffic flow direction of the target intersection, determining a delay index corresponding to the traffic flow direction according to the green signal ratio of the phase, the traffic flow in a set time period and the signal cycle duration of the target intersection;
and obtaining the delay index of the target intersection according to the delay index of each traffic flow direction of the target intersection.
In one embodiment of the invention, determining the delay indicator of the target area according to the traffic information of each reference intersection comprises:
determining whether each traffic flow direction of each reference intersection is coordinated or not according to the traffic flow direction of the reference intersection and the signal period duration;
for each uncoordinated traffic flow direction, determining a delay index corresponding to the uncoordinated traffic flow direction according to the green signal ratio of the phase, the traffic flow in a set time period and the signal cycle duration of the reference intersection;
for each coordinated traffic flow direction, determining a delay index corresponding to the coordinated traffic flow direction according to the green signal ratio of the corresponding upstream intersection, the green signal ratio of the corresponding reference intersection, the phase difference between the corresponding reference intersection and the corresponding upstream intersection, the traffic time between the corresponding upstream intersection, the traffic flow in a set time period and the signal cycle duration of the corresponding reference intersection;
and determining a delay index of the target area according to the delay index of each uncoordinated traffic flow direction and the delay index of each coordinated traffic flow direction.
In one embodiment of the present invention, for each coordinated traffic flow direction, determining a delay indicator corresponding to the coordinated traffic flow direction according to the split green ratio of the corresponding upstream intersection, the split green ratio of the corresponding reference intersection, the phase difference between the corresponding reference intersection and the corresponding upstream intersection, the traffic time between the corresponding upstream intersection, the traffic flow within a set time period, and the signal cycle duration of the corresponding reference intersection comprises:
for each coordinated traffic flow direction, determining delay time of the corresponding coordinated traffic flow direction according to the green signal ratio of the corresponding upstream intersection, the green signal ratio of the reference intersection to which the coordinated traffic flow direction belongs, the phase difference between the corresponding reference intersection and the corresponding upstream intersection, the traffic time between the corresponding upstream intersection and the signal cycle time of the corresponding reference intersection;
and for each coordinated traffic flow direction, determining a delay index corresponding to the coordinated traffic flow direction according to the delay time length, the traffic flow in a set time period and the signal cycle time length of the corresponding reference intersection.
In an embodiment of the present invention, the second index determining module 6300 may further be configured to:
and determining a delay index of the new area as a second delay index according to the traffic information of each reference intersection by taking the target intersection as the reference intersection of the new area.
In one embodiment of the present invention, the information processing apparatus 6000 may further include:
and the module is used for taking the intersection with the longest signal cycle duration in the preset area as a reference intersection in the target area.
In an embodiment of the invention, the intersection partitioning module 6400 may further be configured to:
under the condition that the first delay index is less than or equal to the second delay index, the target intersection is not divided into target areas;
and under the condition that the first delay index is larger than the second delay index, dividing the target intersection into target areas.
In one embodiment of the present invention, the information processing apparatus 6000 may further include:
and the module is used for taking a new area formed by the target area and the target intersection as the target area and taking the target intersection as a reference intersection of the new area under the condition that the first delay index is larger than the second delay index and the target intersection is divided into the target area.
In one embodiment of the present invention, the information processing apparatus 6000 may further include:
and the module is used for taking the target intersection as a reference intersection in another target area under the condition that the first delay index is less than or equal to the second delay index and the target intersection is not divided into the target areas.
In one embodiment of the present invention, the information processing apparatus 6000 may further include:
and the module is used for traversing all intersections in the preset area, respectively serving as target intersections and dividing the preset area into a plurality of target areas.
In one embodiment of the present invention, the information processing apparatus 6000 may further include:
and the module is used for carrying out traffic control on the corresponding target areas according to the traffic information of each target area.
In one embodiment of the present invention, the traffic control of the corresponding target area according to the traffic information of each target area includes:
determining a target phase difference corresponding to at least one phase of a plurality of intersections in each target area according to the traffic information of each target area;
and respectively carrying out traffic control on the corresponding target areas according to the target phase difference of at least one phase of the intersections in each target area.
In an embodiment of the present invention, the setting of the regional relationship includes that intersections are adjacent to each other, separated by a predetermined distance, or separated by no more than a predetermined number.
It will be apparent to those skilled in the art that the information processing apparatus 6000 may be implemented in various ways. For example, the information processing apparatus 6000 can be realized by configuring a processor by instructions. For example, the information processing apparatus 6000 may be implemented by storing instructions in a ROM and reading the instructions from the ROM into a programmable device when starting up the device. For example, the information processing apparatus 6000 may be cured into a dedicated device (e.g., ASIC). The information processing apparatus 6000 may be divided into units independent of each other, or may be implemented by being incorporated together. The information processing apparatus 6000 can be implemented by one of the various implementations described above, or can be implemented by a combination of two or more of the various implementations described above.
In this embodiment, the information processing apparatus 6000 may have various implementation forms, for example, the information processing apparatus 6000 may be any functional module running in a software product or an application providing the region division service, or a peripheral insert, a plug-in, a patch, or the like of the software product or the application, or the software product or the application itself.
< electronic apparatus >
In this embodiment, an electronic device 1000 is also provided. The electronic device 1000 may be the server 1100 shown in fig. 1, or may be the terminal device 1200 shown in fig. 2.
In one aspect, as shown in fig. 7, the electronic device 1000 may include the information processing apparatus 6000 as described above, for implementing the information processing method according to any embodiment of the present invention.
In another aspect, as shown in fig. 8, the electronic device 1000 may further comprise a processor 1300 and a memory 1400, the memory 1400 for storing executable instructions; the processor 1300 is configured to operate the electronic device 1000 according to the control of the instructions to execute the information processing method according to any embodiment of the present invention.
< computer-readable storage Medium >
In the present embodiment, there is also provided a computer-readable storage medium on which a computer program is stored, the computer program, when being executed by a processor, implementing the information processing method according to any embodiment of the present invention.
The present invention may be a system, method and/or computer program product. The computer program product may include a computer-readable storage medium having computer-readable program instructions embodied therewith for causing a processor to implement various aspects of the present invention.
The computer-readable storage medium may be a tangible device that can hold and store the instructions for use by the instruction execution device. The computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, semiconductor memory device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: 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), a Static Random Access Memory (SRAM), a portable compact disc read-only memory (CD-ROM), a Digital Versatile Disc (DVD), a memory stick, a floppy disk, a mechanical encoding device, such as punch cards or in-groove raised structures having instructions stored thereon, and any suitable combination of the foregoing. Computer-readable storage media as used herein is not to be interpreted as a transitory signal per se, such as a radio wave or other freely propagating electromagnetic wave, an electromagnetic wave propagating through a waveguide or other transmission medium (e.g., optical pulses through a fiber optic cable), or an electrical signal transmitted through an electrical wire.
The computer-readable program instructions described herein may be downloaded from a computer-readable storage medium to a respective computing/processing device, or to an external computer or external storage device over a network, such as the internet, a local area network, a wide area network, and/or a wireless network. The network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers and/or edge servers. The network adapter card or network interface in each computing/processing device receives computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in a computer-readable storage medium in the respective computing/processing device.
The computer program instructions for carrying out operations of the present invention may be assembler instructions, Instruction Set Architecture (ISA) instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source or object code written in any combination of one or more programming languages, including an object oriented programming language such as Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The computer-readable program instructions may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the latter scenario, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider). In some embodiments, aspects of the present invention are implemented by personalizing an electronic circuit, such as a programmable logic circuit, a Field Programmable Gate Array (FPGA), or a Programmable Logic Array (PLA), with state information of computer-readable program instructions, which can execute the computer-readable program instructions.
Aspects of the present invention are described herein with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer readable program instructions.
These computer-readable program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable information processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable information processing apparatus, create means for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks. These computer-readable program instructions may also be stored in a computer-readable storage medium that can direct a computer, programmable information processing apparatus, and/or other devices to function in a particular manner, such that the computer-readable medium storing the instructions comprises an article of manufacture including instructions which implement the function/act specified in the flowchart and/or block diagram block or blocks.
The computer readable program instructions may also be loaded onto a computer, other programmable information processing apparatus, or other devices to cause a series of operational steps to be performed on the computer, other programmable apparatus or other devices to produce a computer implemented process such that the instructions which execute on the computer, other programmable apparatus or other devices implement the functions/acts specified in the flowchart and/or block diagram block or blocks.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of instructions, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions. It is well known to those skilled in the art that implementation by hardware, by software, and by a combination of software and hardware are equivalent.
While embodiments of the present invention have been described above, the above description is illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or technical improvements to the market, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein. The scope of the invention is defined by the appended claims.

Claims (15)

1. An information processing method comprising:
acquiring traffic information of at least one reference intersection in a target area of a preset area and traffic information of a target intersection having a set area relationship with the target area; the traffic information is information influencing the traffic state of the preset area;
determining a delay index of a new region formed by the target region and the target intersection under the condition that the target intersection is not divided into the target region according to the traffic information of the reference intersection and the traffic information of the target intersection, wherein the delay index is used as a first delay index; the delay index is used for representing the delay condition of the corresponding area;
determining a delay index of the new region as a second delay index under the condition that the target intersection is divided into the target region according to the traffic information of the reference intersection and the traffic information of the target intersection;
determining whether the target intersection is divided into the target area or not according to the first delay index and the second delay index;
determining a delay index of a new region formed by the target region and the target intersection under the condition that the target intersection is not divided into the target region according to the traffic information of the reference intersection and the traffic information of the target intersection, wherein the delay index serving as a first delay index comprises:
determining a delay index of the target intersection according to the traffic information of the target intersection;
determining a delay index of the target area according to the traffic information of each reference intersection;
obtaining the first delay index according to the delay index of the target intersection and the delay index of the target area;
it is characterized in that the preparation method is characterized in that,
the step of determining the delay indicators of the target area according to the traffic information of each reference intersection comprises the following steps: determining whether each traffic flow direction of each reference intersection is coordinated or not according to the traffic flow direction of the reference intersection and the signal period duration; for each uncoordinated traffic flow direction, determining a delay index corresponding to the uncoordinated traffic flow direction according to the green signal ratio of the phase, the traffic flow in a set time period and the signal cycle duration of the reference intersection; for each coordinated traffic flow direction, determining a delay index corresponding to the coordinated traffic flow direction according to the green signal ratio of the corresponding upstream intersection, the green signal ratio of the corresponding reference intersection, the phase difference between the corresponding reference intersection and the corresponding upstream intersection, the traffic time between the corresponding upstream intersection, the traffic flow in a set time period and the signal cycle duration of the corresponding reference intersection; and determining the delay indexes of the target area according to the delay indexes of each uncoordinated traffic flow direction and the delay indexes of each coordinated traffic flow direction.
2. The method of claim 1, wherein the traffic information comprises a signal cycle duration, a split per phase, a traffic direction per phase, a traffic flow per traffic direction within a set period, a phase difference with a corresponding upstream junction, and a traffic time with the upstream junction.
3. The method of claim 1, wherein for each coordinated traffic flow direction, determining a delay indicator of the corresponding coordinated traffic flow direction according to the split green ratio of the corresponding upstream intersection, the split green ratio of the corresponding reference intersection, the phase difference between the corresponding reference intersection and the corresponding upstream intersection, the traffic time between the corresponding upstream intersection, the traffic flow within the set time period, and the signal cycle duration of the corresponding reference intersection comprises:
for each coordinated traffic flow direction, determining delay duration corresponding to the coordinated traffic flow direction according to the split green ratio of the corresponding upstream intersection, the split green ratio of the reference intersection to which the coordinated traffic flow direction belongs, the phase difference between the corresponding reference intersection and the corresponding upstream intersection, the traffic time between the corresponding upstream intersection and the signal cycle duration of the corresponding reference intersection;
and for each coordinated traffic flow direction, determining a delay index corresponding to the coordinated traffic flow direction according to the delay time length, the traffic flow in the set time period and the signal cycle time length of the corresponding reference intersection.
4. The method according to claim 2, wherein the determining, based on the traffic information of the reference intersection and the traffic information of the target intersection, a second delay indicator of the new area in a case where the target intersection is divided into the target area comprises:
and determining a delay index of the new area as the second delay index according to the traffic information of each reference intersection by taking the target intersection as the reference intersection of the new area.
5. The method of claim 1, further comprising:
and taking the intersection with the longest signal period time in the preset area as the reference intersection in the target area.
6. The method according to claim 1, wherein the determining whether to partition the target intersection into the target area according to the first delay indicator and the second delay indicator comprises:
when the first delay index is less than or equal to the second delay index, the target intersection is not divided into the target area;
and under the condition that the first delay index is larger than the second delay index, dividing the target intersection into the target area.
7. The method of claim 6, further comprising:
and under the condition that the first delay index is larger than the second delay index and the target intersection is divided into the target areas, taking a new area formed by the target areas and the target intersection as a target area and taking the target intersection as a reference intersection of the new area.
8. The method of claim 6, further comprising:
and when the first delay index is less than or equal to the second delay index and the target intersection is not divided into the target area, taking the target intersection as a reference intersection in another target area.
9. The method of claim 8, further comprising:
and traversing all intersections in the preset area, respectively serving as the target intersections, and dividing the preset area into a plurality of target areas.
10. The method of claim 9, further comprising:
and respectively carrying out traffic control on the corresponding target areas according to the traffic information of each target area.
11. The method of claim 10, wherein the step of performing traffic control on the corresponding target area according to the traffic information of each target area comprises:
determining a target phase difference corresponding to at least one phase of a plurality of intersections in each target area according to the traffic information of each target area;
and respectively carrying out traffic control on the corresponding target areas according to the target phase difference of at least one phase of the plurality of intersections in each target area.
12. The method of claim 1, wherein the set regional relationship comprises intersections that are adjacent, within a preset distance of each other, or no more than a preset number of intersections apart.
13. An information processing apparatus includes:
the information acquisition module is used for acquiring traffic information of at least one reference intersection in a target area of a preset area and traffic information of a target intersection having a set area relationship with the target area; the traffic information is information influencing the traffic state of the preset area;
the first index determining module is used for determining a delay index of a new area formed by the target area and the target intersection under the condition that the target intersection is not divided into the target area according to the traffic information of the reference intersection and the traffic information of the target intersection as a first delay index; the delay index is used for representing the delay condition of the corresponding area;
a second index determining module, configured to determine, according to the traffic information of the reference intersection and the traffic information of the target intersection, a delay index of the new area as a second delay index when the target intersection is divided into the target area;
the intersection dividing module is used for determining whether the target intersection is divided into the target area or not according to the first delay index and the second delay index;
the first indicator determination module is further to:
determining a delay index of the target intersection according to the traffic information of the target intersection;
determining a delay index of the target area according to the traffic information of each reference intersection;
obtaining the first delay index according to the delay index of the target intersection and the delay index of the target area;
it is characterized in that the preparation method is characterized in that,
the determining the delay indicator of the target area according to the traffic information of each reference intersection comprises: determining whether each traffic flow direction of each reference intersection is coordinated or not according to the traffic flow direction of the reference intersection and the signal period duration; for each uncoordinated traffic flow direction, determining a delay index corresponding to the uncoordinated traffic flow direction according to the green signal ratio of the phase, the traffic flow in a set time period and the signal cycle duration of the reference intersection; for each coordinated traffic flow direction, determining a delay index corresponding to the coordinated traffic flow direction according to the green signal ratio of the corresponding upstream intersection, the green signal ratio of the corresponding reference intersection, the phase difference between the corresponding reference intersection and the corresponding upstream intersection, the traffic time between the corresponding upstream intersection, the traffic flow in a set time period and the signal cycle duration of the corresponding reference intersection; and determining the delay indexes of the target area according to the delay indexes of each uncoordinated traffic flow direction and the delay indexes of each coordinated traffic flow direction.
14. An electronic device, comprising the apparatus of claim 13; or, comprising a processor and a memory for storing executable instructions for controlling the processor to perform the method according to any one of claims 1 to 12.
15. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method according to any one of claims 1 to 12.
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