CN111737526A

CN111737526A - Traffic road condition query method, device, equipment and storage medium

Info

Publication number: CN111737526A
Application number: CN202010515855.3A
Authority: CN
Inventors: 刘庆军; 张绍瑞
Original assignee: Beijing Qihoo Technology Co Ltd
Current assignee: Beijing Qihoo Technology Co Ltd
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2020-10-02

Abstract

The invention discloses a method, a device, equipment and a storage medium for inquiring traffic conditions, wherein the method takes road section information corresponding to a road section to be inquired and vehicle information at the current moment as correction parameters, and corrects original traffic condition information corresponding to the road section to be inquired based on the correction parameters, so that the traffic condition information corresponding to the road section to be inquired can reflect the current-moment congestion state of the road section to be inquired more accurately and truly, the reference value is greatly improved, and the travel of a user is facilitated.

Description

Traffic road condition query method, device, equipment and storage medium

Technical Field

The invention relates to the technical field of intelligent traffic, in particular to a method, a device, equipment and a storage medium for inquiring traffic road conditions.

Background

With the rapid development of economy and the continuous improvement of living standard, the automobile keeping quantity is rapidly increased, and with the continuous influx of automobiles into a limited urban traffic network, great pressure is brought to the urban traffic network, so that the problem of traffic jam puzzling various cities is increasingly severe. Traffic congestion not only can reduce road traffic capacity and delay traffic increase, but also can cause economic loss, so that how to timely and accurately acquire real-time road condition information of road traffic is very important for users.

However, the current real-time road conditions for the urban traffic network are predicted based on the number of navigation software in the navigation mode in the same road segment and the moving speed (i.e. vehicle speed) displayed by the navigation software. This presents some unavoidable problems: for example, multiple passengers in the same vehicle use their own mobile devices, such as mobile phone-enabled navigation software; also for example, when the current road section is near a mall, school, residential area, there are some vehicles entering or exiting the mall, resulting in a reduction in the speed of the vehicles on the current road section. Therefore, it is obvious that there is a large error in predicting the real-time traffic information of the current road section by simply depending on the number of the navigation software in the navigation mode and the moving speed displayed by the navigation software, thereby bringing inconvenience to the user when going out.

The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.

Disclosure of Invention

The invention mainly aims to provide a method, a device, equipment and a storage medium for inquiring traffic conditions, and aims to solve the technical problems.

In order to achieve the above object, the present invention provides a method for inquiring traffic conditions, comprising the following steps:

when a traffic road condition query instruction is received, extracting a road section to be queried from the traffic road condition query instruction;

acquiring road section information of the road section to be inquired, current vehicle information of the road section to be inquired and original traffic road condition information corresponding to the road section to be inquired;

correcting the original traffic road condition information based on the road section information and the vehicle information to obtain corrected traffic road condition information;

and displaying the corrected traffic road condition information based on a preset display mode.

Optionally, the step of correcting the original traffic condition information based on the road section information and the vehicle information includes:

determining a road section scene corresponding to the road section to be inquired based on the road section information;

and correcting the original traffic road condition information based on the road section scene and the vehicle information.

Optionally, the step of correcting the original traffic condition information based on the road segment scene and the vehicle information includes:

determining a congestion area in the road section to be inquired based on the original traffic road condition information;

determining a queuing area existing in the road section to be queried based on the road section scene;

judging whether the congestion area is matched with the queuing area or not;

and if the congestion area is matched with the queuing area, correcting the original traffic road condition information based on the vehicle information.

Optionally, the step of correcting the original traffic condition information based on the vehicle information includes:

acquiring a running track of each vehicle in the congestion area from the vehicle information;

screening the queued vehicles facing the queuing area based on the driving track to obtain the number of the queued vehicles;

comparing the number of the queued vehicles with a preset number of traffic congestion;

and correcting the original traffic road condition information according to the comparison result.

Optionally, the step of correcting the original traffic information according to the comparison result includes:

if the comparison result shows that the number of the queued vehicles is not greater than the preset number of the congested vehicles, modifying congestion identification information corresponding to the congestion area in the original traffic road condition information into unblocked identification information;

if the comparison result shows that the number of the queued vehicles is greater than the preset number of the traffic congestion, acquiring the driving speed of the vehicle which is positioned at the same horizontal position and is in the same lane in the same direction as the queued vehicles from the vehicle information;

judging whether the running speed is greater than a preset congestion speed or not;

and if the running speed is greater than the preset congestion speed, modifying congestion identification information corresponding to the congestion area in the original traffic road condition information into unblocked identification information.

Optionally, the step of determining whether the congestion area matches the queuing area includes:

determining the queuing position coordinates of each queuing area relative to the road section to be inquired;

generating a queuing area set based on each queuing position coordinate;

determining congestion position coordinates of the congestion area in the road section to be inquired;

comparing the congestion position coordinates to queuing position coordinates in the set of queuing areas;

and judging whether the congestion area is matched with the queuing area or not according to the comparison result.

Optionally, the step of obtaining the road section information of the road section to be queried includes:

acquiring historical video data corresponding to the road section to be inquired;

and determining road section information of the road section to be inquired in the historical video data based on an image processing technology.

Optionally, before the step of determining the road section information of the road section to be queried in the historical video data based on an image processing technology, the method includes:

detecting whether a sight line blocked by an obstacle exists in the historical video data;

if the historical video data has a sight line blocked by an obstacle, expanding the historical video data;

correspondingly, the step of determining the road section information of the road section to be queried in the historical video data based on the image processing technology comprises the following steps:

and analyzing the expanded historical video data based on an image processing technology to determine the road section information of the road section to be inquired.

Optionally, the step of expanding the historical video data includes:

acquiring reference video data based on the obstacle;

extending the historical video data based on the reference video data.

Optionally, the step of acquiring reference video data based on the obstacle includes:

determining the distance and the direction of the obstacle relative to the road section to be inquired;

determining actual coordinate information of the obstacle based on the distance and direction;

acquiring a video picture shot by monitoring equipment in a reference range formed by taking the actual coordinate information as a circle center and taking a preset length as a radius;

and traversing each video picture, screening out the video pictures containing the obstacles, and obtaining reference video data.

Optionally, the step of expanding the historical video data based on the reference video data includes:

determining first position information of the obstacle in the historical video data and second position information in the reference video data;

unifying coordinate change rules of the historical video data and the reference video data;

image preprocessing is carried out on the historical video data and the reference video data, and corresponding coordinates of feature points in the reference video data in the historical video data are determined based on a preset matching strategy;

and according to the corresponding relation between the reference video data and the feature points in the historical video data, fusing the peripheral environment information shielded by the obstacles in the reference video data into the historical video data.

Optionally, after the step of displaying the corrected traffic condition information based on a preset display manner, the method further includes:

and replacing the original traffic road condition information with the corrected traffic road condition information.

In addition, in order to achieve the above object, the present invention further provides a traffic condition query device, including: the system comprises a memory, a processor and a traffic condition query program which is stored on the memory and can be operated on the processor, wherein the traffic condition query program is configured to realize the steps of the traffic condition query method.

In addition, in order to achieve the above object, the present invention further provides a storage medium, where a traffic condition query program is stored on the storage medium, and when the traffic condition query program is executed by a processor, the steps of the traffic condition query method are implemented as described above.

In addition, in order to achieve the above object, the present invention further provides an inquiry apparatus for traffic conditions, the apparatus comprising:

the system comprises an extraction module, a query module and a query module, wherein the extraction module is used for extracting a road section to be queried from a traffic road condition query instruction when the traffic road condition query instruction is received;

the acquisition module is used for acquiring the road section information of the road section to be inquired, the current vehicle information of the road section to be inquired and the original traffic road condition information corresponding to the road section to be inquired;

the correction module is used for correcting the original traffic road condition information based on the road section information and the vehicle information to obtain corrected traffic road condition information;

and the display module is used for displaying the corrected traffic condition information based on a preset display mode.

According to the traffic road condition query method, the road section information corresponding to the road section to be queried and the vehicle information at the current moment are used as the correction parameters, and the original traffic road condition information corresponding to the road section to be queried is corrected based on the correction parameters, so that the traffic road condition information corresponding to the road section to be queried can reflect the congestion state of the road section to be queried at the current moment more accurately and truly, the reference value is greatly improved, and the travel of a user is facilitated.

Drawings

Fig. 1 is a schematic structural diagram of a device for querying traffic conditions in a hardware operating environment according to an embodiment of the present invention;

FIG. 2 is a schematic flow chart illustrating a first embodiment of a traffic road condition query method according to the present invention;

fig. 3 is a schematic view of an original traffic road condition corresponding to a road section to be queried according to a first embodiment of the traffic road condition query method of the present invention;

fig. 4 is a schematic view of an original traffic road condition corresponding to a road section to be queried according to the first embodiment of the traffic road condition query method of the present invention;

FIG. 5 is a flowchart illustrating a second embodiment of a traffic road condition query method according to the present invention;

fig. 6 is a block diagram of a first embodiment of the traffic road condition query device according to the present invention.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a device for querying traffic conditions in a hardware operating environment according to an embodiment of the present invention.

As shown in fig. 1, the query device for traffic conditions may include: a processor 1001, such as a Central Processing Unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a WIreless interface (e.g., a WIreless-FIdelity (WI-FI) interface). The Memory 1005 may be a Random Access Memory (RAM) Memory, or may be a Non-Volatile Memory (NVM), such as a disk Memory. The memory 1005 may alternatively be a storage device separate from the processor 1001.

Those skilled in the art will appreciate that the configuration shown in fig. 1 does not constitute a limitation of the query device for traffic conditions, and may include more or fewer components than those shown, or some components in combination, or a different arrangement of components.

As shown in fig. 1, the memory 1005, which is a storage medium, may include an operating system, a data storage module, a network communication module, a user interface module, and a query program for traffic conditions.

In the traffic condition query device shown in fig. 1, the network interface 1004 is mainly used for data communication with a network server; the user interface 1003 is mainly used for data interaction with a user; the processor 1001 and the memory 1005 of the traffic information query device of the present invention may be disposed in the traffic information query device, and the traffic information query device calls the traffic information query program stored in the memory 1005 through the processor 1001 and executes the traffic information query method provided by the embodiment of the present invention.

An embodiment of the present invention provides a method for querying traffic conditions, and referring to fig. 2, fig. 2 is a schematic flow diagram of a first embodiment of the method for querying traffic conditions according to the present invention.

In this embodiment, the method for querying traffic conditions includes the following steps:

step S10, when a traffic road condition query instruction is received, a road section to be queried is extracted from the traffic road condition query instruction.

Specifically, in practical application, in order to facilitate the use of the user, the method for querying the traffic road condition provided in this embodiment may be specifically integrated into an application program for the user.

Correspondingly, the application program integrated with the method for inquiring the traffic road condition can be installed on mobile equipment of a user, such as a mobile phone, a tablet computer, a notebook computer and the like, and can also be installed in vehicle-mounted equipment of a vehicle driven by the user. Therefore, when a user inquires the traffic road condition of a certain road section to be inquired, the user only needs to operate the application program.

In addition, it is worth mentioning that, in this embodiment, the road segment to be queried specifically refers to a name of the road segment to be queried.

In order to facilitate understanding of the operation in step S10, the following description is made with reference to an example (if the user uses an application installed with the method for querying traffic conditions according to the present embodiment to query the traffic conditions of the road segment a), where the information input by the user is in a text format, a voice format, or a picture format:

(1) for the specific operation that the information input by the user is in a text format, the following description is specifically provided with reference to the following examples:

firstly, a user inputs the name of a road section A to be inquired on a search interface of the application program;

then, triggering a search icon in the interface to generate a traffic road condition query instruction;

then, when the application program monitors the traffic road condition query instruction, a preset information extraction interface is called to extract the text information input by the user from the text box of the text information input by the user;

and finally, taking the extracted text information, namely the road section A, as the road section to be inquired.

(2) Specific operation that the information input by the user is in a voice format:

firstly, clicking a preset voice input icon on a search interface of the application program by a user, and speaking the name of a road section to be inquired, namely a road section A, in a voice mode;

then, after the voice information is recorded, directly loosening the pressed voice input icon or clicking the finishing icon and the like, thereby generating a corresponding traffic road condition query instruction;

then, when the application program monitors the traffic road condition query instruction, a preset information extraction interface is called to acquire voice information input by a user;

secondly, converting the acquired voice information into character information by adopting a voice-to-character technology;

then, extracting keywords from the text information, and further extracting the road section name of the road section which needs to be searched by the user;

(3) Specific operation that the information input by the user is in a picture format is as follows:

firstly, clicking a picture searching icon on a searching interface of the application program by a user, and directly shooting a picture containing a road section A to be inquired or a picture containing the road section A;

then, after the picture is uploaded or shot, triggering a completion or search icon on an interface to further generate a corresponding traffic road condition query instruction;

then, when the application program monitors the traffic road condition query instruction, a preset information extraction interface is called to acquire a picture uploaded by a user;

then, extracting character information from the picture by adopting a picture processing technology;

It should be understood that the above is only an example, and the technical solution of the present invention is not limited in any way, and those skilled in the art can set the technical solution based on the needs in practical application, and the technical solution is not limited herein.

And step S20, acquiring the road section information of the road section to be inquired, the current vehicle information of the road section to be inquired and the original traffic road condition information corresponding to the road section to be inquired.

Specifically, the original traffic information in this embodiment may be stored in a pre-constructed server, such as a traffic information platform specially used for storing traffic information of each road segment in a city; or in a database local to the querying device used by the user.

In order to facilitate the query and improve the query speed, when the original traffic road condition information corresponding to the road section to be queried is obtained, the original traffic road condition information can be searched in a local database, and if the original traffic road condition information is not searched in the local database, the original traffic road condition information is searched in a network request server.

For ease of understanding, the following description is made specifically for this manner of querying:

firstly, according to the road section name of the road to be inquired, the identification information (the uniqueness of the identification) of the road section to be inquired is determined.

It should be understood that, in practical application, if there is a road segment to be queried with the same road segment name, in order to avoid that the corresponding original traffic road condition information cannot be located under such a condition, when determining the identification information, the city where the road segment to be queried is located may be determined according to the address information of the road segment to be queried, that is, according to the current location of the user terminal device, or the location is directly performed according to the city where the road segment to be queried is input by the user.

And then, acquiring a mapping relation table which is locally stored and is used for recording the corresponding relation between the identification information of each road section to be inquired and the corresponding original traffic road condition information.

And then, matching the identification information in the mapping relation table with the identification information, and judging whether the mapping relation table has the identification information matched with the identification information.

Correspondingly, if the identification information matched with the identification information exists in the mapping relation table, the fact that the original traffic road condition information corresponding to the road section to be inquired exists in a local database is indicated, and in this case, the original traffic road condition information can be directly obtained from the local database; otherwise, it indicates that the local database does not have the original traffic road condition information corresponding to the road segment to be queried, in this case, the identification information of the road segment to be queried is sent to the corresponding server, the server queries the corresponding original traffic road condition information according to the mapping relation table stored in the server, and then feeds back the queried original traffic road condition information to the mobile device.

Furthermore, in order to facilitate the user to query the traffic road condition information of the road section next time, the corresponding original traffic road condition information can be rapidly queried from the local database, and when the queried original traffic road condition information is fed back to the mobile device, the received original traffic road condition information can be added to the local database, and the local mapping relation table is updated.

Further, in order not to affect the normal use of the mobile device of the user, the update operation may be obtained when the mobile device is in an idle state and WiFi is used for network access.

In addition, the road section information in this embodiment is used to determine a road section scene corresponding to the road section to be queried, that is, whether queuing areas, such as shopping malls, schools, residential areas, parking lots, and the like, which are prone to queuing exist, exist within a preset range of the road section to be queried, so that when the original traffic road condition information is corrected based on the road section information and the vehicle information in the following process, whether the current road section is temporarily congested due to the queuing areas can be reasonably judged, and the original traffic road condition of the road section to be queried can be corrected in time.

In addition, it should be noted that, although the link information of a certain link to be queried is usually displayed in the map and navigation software. However, in practical applications, there often exists a temporary renovation of some areas at a certain time, which causes a change in road segment scenes on a road segment to be queried, for example, an entrance and an exit of a parking lot interacting with the road segment to be queried currently cannot be used due to the temporary renovation, that is, a queuing phenomenon cannot occur at present in a place originally belonging to a queuing area. Therefore, in order to more accurately determine the corresponding road segment scene of the road segment to be queried, the acquired road segment information may be determined based on historical video data corresponding to the road segment to be queried.

Specifically, in this embodiment, the historical video data may be selected from the previous week, and even the previous day, which is not limited in this embodiment.

For the operation of obtaining the link information corresponding to the link to be queried, for convenience of understanding, a specific implementation manner is provided in this embodiment, and specifically, the following is provided:

(1) and acquiring historical video data corresponding to the road section to be inquired.

Specifically, in practical applications, the sources of the above-mentioned historical video data can be roughly classified into the following three ways:

the first method is as follows:

and acquiring a monitoring video shot by monitoring equipment arranged on the road section to be inquired within a preset time (within a certain time range before), and taking the monitoring video as the historical video data.

The second method comprises the following steps:

and acquiring a video picture shot by vehicle-mounted equipment in the vehicle running on the road section to be inquired within a preset time (within a certain time range before), and taking the video picture as the historical video data.

The third method comprises the following steps:

and acquiring a monitoring video shot by monitoring equipment arranged on the road section to be inquired within preset time (within a certain time range before) and a video picture shot by vehicle-mounted equipment in a vehicle running on the road section to be inquired within the preset time (within the certain time range before), and taking the monitoring video and the video picture as the historical video data.

Specifically, in practical applications, in order to facilitate acquisition of historical video data from the monitoring devices, such as the monitoring cameras, arranged on the road sections to be queried and from the vehicle-mounted devices in the vehicles running on the road sections to be queried, the monitoring devices arranged on the road sections to be queried, the vehicle-mounted devices installed in the existing vehicles, and the mobile devices used for traffic road condition query can be accessed into a unified network platform, such as the existing vehicle pipe network platform, so that when the historical video data of the road sections to be queried need to be acquired, the historical video data can be acquired by directly accessing the vehicle pipe network platform.

(2) And determining road section information of the road section to be inquired in the historical video data based on an image processing technology.

Specifically, in practical application, in order to extract the road section information corresponding to the road section to be queried as accurately as possible for subsequent use.

Before step (2) is executed, whether a sight line blocked by an obstacle exists in the historical video data or not can be detected.

Correspondingly, if the historical video data has a sight line blocked by an obstacle, the historical video data is expanded.

Regarding the above operation of expanding the historical video data, the present embodiment provides a specific implementation manner, which is as follows:

first, reference video data is acquired based on the obstacle.

Specifically, when acquiring reference video data based on the obstacle, the following 4 steps are required:

determining the distance and the direction of the obstacle relative to the road section to be inquired, and determining the actual coordinate information of the obstacle based on the distance and the direction.

Specifically, the link name of the link to be queried and the corresponding specific location information (hereinafter referred to as the first physical coordinates for convenience of distinction) are determinable.

Therefore, when determining the distance and the direction of the obstacle relative to the road segment to be queried, the pixel coordinates of the road segment to be queried in the historical video data (hereinafter referred to as first pixel coordinates for convenience of distinction) may be preceded; then determining the distance and the direction of the obstacle in the video image relative to the road section to be inquired; next, actual coordinate information of the obstacle (hereinafter referred to as second physical coordinates for convenience of distinction) is determined based on a conversion relationship between the first pixel coordinates and the first physical coordinates, and further based on the conversion relationship, the determined distance, and the determined direction.

In addition, it is worth mentioning that, in practical application, the second physical coordinate of the obstacle may also be determined according to the pixel coordinate of the obstacle in the historical video data relative to the road segment to be queried and the determined conversion relationship.

It should be understood that the above are only two specific implementations, and the technical solution of the present invention is not limited in any way, and those skilled in the art can set the implementation requirements based on practical applications, and the implementation is not limited herein.

And acquiring a video picture shot by the monitoring equipment in a reference range formed by taking the actual coordinate information as a circle center and taking a preset length as a radius.

The preset length mentioned above can be implemented according to actual needs, for example, the preset length is set to 10 meters.

Accordingly, the video images may be captured by monitoring devices disposed on adjacent road sections, may also be captured by vehicle-mounted devices in vehicles traveling on adjacent road sections, and may also be captured by users who have come from here before using their own capturing devices, which is not listed here, and this embodiment is not limited thereto.

Traversing each video picture, screening out the video pictures containing the barrier, and obtaining reference video data.

Specifically, when screening the video pictures containing the obstacles, the feature information of the obstacles can be extracted based on an image processing technology, and then whether the video pictures contain the obstacles or not can be determined by comparing the feature information in the video pictures.

The historical video data is then expanded based on the reference video data.

Regarding the operation of expanding the historical video data based on the reference video, the following is specific:

determining first position information of the obstacle in the historical video data and second position information of the obstacle in the reference video data; unifying coordinate change rules of the historical video data and the reference video data; image preprocessing is carried out on the historical video data and the reference video data, and corresponding coordinates of feature points in the reference video data in the historical video data are determined based on a preset matching strategy; and fusing the peripheral environment information shielded by the barrier in the reference video data into the historical video data according to the corresponding relation between the reference video data and the characteristic points in the historical video data.

It should be understood that the above is only a specific operation for expanding video, and the technical solution of the present invention is not limited in any way, and those skilled in the art can set the operation as needed in practical applications, and the operation is not limited herein.

Accordingly, the operation in the above step (2) is modified to: and analyzing the expanded historical video data based on an image processing technology to determine the road section information of the road section to be inquired.

That is, in the present embodiment, the link information is specifically extracted from the number of videos captured in a certain time range in the past for the link to be queried.

In addition, the above-mentioned manner of acquiring the current vehicle information of the road segment to be queried is specifically implemented based on a Global Positioning System (GPS) in the present embodiment. Namely, when the current vehicle information of the road section to be inquired is obtained, the number of vehicles in an address range related to the road section to be inquired, the driving speed of each vehicle and the driving track formed by displacement in continuous time are positioned based on a GPS positioning mode.

That is, the vehicle information needs to include the number of vehicles traveling on the road section to be queried, the driving speed of each vehicle, and a traveling track, which are not listed here, and this embodiment is not particularly limited thereto.

And step S30, correcting the original traffic road condition information based on the road section information and the vehicle information to obtain corrected traffic road condition information.

Specifically, as shown in the description of step S20, the link information is used to determine the link scene corresponding to the link to be queried. Therefore, when step S30 is executed, the road segment scene corresponding to the road segment to be queried is determined based on the road segment information; then, the original traffic condition information is corrected based on the road segment scene and the vehicle information.

It should be noted that, the operation of correcting the original traffic road condition information based on the road segment scene and the vehicle information specifically includes determining a queuing area in the road segment to be queried based on the road segment scene, determining a congestion area in the road segment to be queried based on the original traffic road condition information, and then correcting according to a matching result by judging whether the congestion area in the original traffic road condition information corresponding to the road segment to be queried matches with the determined queuing area.

That is, in this embodiment, the correction operation performed on the original traffic road condition information based on the road section information and the vehicle information is specifically information that corrects a congestion area displayed in the original traffic road condition information is inaccurate, so that when performing the correction, it is only necessary to determine a queuing area existing in the road section to be queried based on the road section scene and determine a congestion area in the road section to be queried based on the original traffic road condition information, and then correct the original traffic road condition information according to a matching result by determining whether the congestion area in the original traffic road condition information corresponding to the road section to be queried matches with the determined queuing area.

To facilitate understanding of the correction process, the following detailed description is made:

(1) and determining a congestion area in the road section to be inquired based on the original traffic road condition information.

Specifically, if the obtained original traffic road condition information is only text description information, in general, the original traffic road condition information records that a specific area of the road section to be queried is in a congestion state at the current moment.

That is to say, the recorded specific area in the congestion state at the current time is the congestion area in the road segment to be queried.

In addition, if the acquired original traffic road condition information is combined with current map and navigation software, in general, the congestion area in the road segment to be queried is marked on an interface displayed in the map and navigation software, for example, red is used for indicating congestion, and green is used for indicating smoothness.

Therefore, when determining the congestion area in the road section to be queried based on the original traffic road condition information, the determination can be performed according to the specific form of the original traffic road condition information.

(2) And determining a queuing area existing in the road section to be queried based on the road section scene.

Specifically, in this embodiment, the queuing area is an area that will cause deceleration of the vehicle, such as a shopping mall, a school, a residential area, a parking lot, and the like. Therefore, when the queuing area existing in the road section to be inquired is determined based on the road section scene, the scenes related to the road section scene are screened out to be used as the queuing area.

(3) And judging whether the congestion area is matched with the queuing area.

Specifically, if the congestion area is matched with the queuing area, the original traffic road condition information is corrected based on the vehicle information; otherwise, the congestion area in the original traffic road condition information described in the specification is actually congested, and no correction is needed.

For convenience of understanding, in the above operation of correcting the original traffic information based on the vehicle information, a specific implementation manner is provided in this embodiment, and specifically, the following is provided:

the method includes acquiring a running track of each vehicle located in the congestion area from the vehicle information.

Specifically, since the vehicle information in this embodiment is determined based on a GPS positioning method, when determining the travel track of each vehicle in the congestion area, the travel track of the vehicle can be drawn by recording the change in the displacement of the vehicle within a continuous time and then according to the change in the displacement.

And secondly, screening the queued vehicles facing the queuing area based on the driving track to obtain the number of the queued vehicles.

For ease of understanding, the following description is made in conjunction with fig. 4.

As shown in fig. 4, it is assumed that the determined congestion area is a right-side lane oval-dotted frame area, and the queuing area determined based on the link scene is a parking lot in fig. 4. As can be seen from fig. 4, the current congestion area matches the queuing area, i.e. the parking lot.

In addition, the number of the queued vehicles can be obtained only by screening the queued vehicles facing the queuing area based on the driving track. Namely, the vehicles with the running tracks matched with the running track A in the figure 4 are taken as queuing vehicles.

And thirdly, comparing the number of the queued vehicles with the preset number of the congested vehicles.

Specifically, the essence of the comparison here is to determine whether the number of queued vehicles is greater than the preset congestion number.

And fourthly, correcting the original traffic road condition information according to the comparison result.

Specifically, if the number of queued vehicles is not greater than the preset number of congested vehicles as a result of the comparison, congestion identification information corresponding to the congestion area in the original traffic road condition information is modified into unblocked identification information.

For example, when the original traffic road condition information is text information, the content describing congestion corresponding to the congestion area in the original traffic road condition information is directly modified to be unblocked, for example, "congestion in the XX area of the road section a at the current time" is modified to "unblocked in the XX area of the road section a at the current time".

For example, when the original traffic road condition information is combined with a map or navigation software, the red congestion area displayed in the map or navigation software interface may be modified to green, thereby indicating that the current area is clear.

In addition, if the number of the queued vehicles is larger than the preset number of the congested vehicles according to the comparison result, acquiring the driving speed of the vehicle which is in the same lane direction as the queued vehicles and is in the same horizontal position from the vehicle information; and then, judging whether the running speed is greater than a preset congestion vehicle speed.

For ease of understanding, the following description is made in conjunction with fig. 5.

As shown in fig. 5, when the comparison result indicates that the number of queued vehicles is greater than the preset number of congested vehicles, it is only necessary to obtain, from the vehicle information, the traveling speed of a vehicle that is in the same direction as the queued vehicle, that is, is still the right lane, and is located at the same horizontal position, specifically, the "same horizontal position" is marked with a horizontal cross line in the area of the dotted line of the ellipse in fig. 6, so as to obtain the traveling speed of a vehicle traveling according to the traveling trajectory B.

Correspondingly, if the running speed is greater than the preset congestion speed, the congestion identification information corresponding to the congestion area in the original traffic road condition information is modified into unblocked identification information.

In addition, regarding the operation of determining whether the congestion area matches the queuing area in step (3), in practical application, the following is specifically applied:

firstly, determining the queuing position coordinates of each queuing area relative to the road section to be queried.

Then, a set of queuing areas is generated based on the respective queuing position coordinates.

And then, determining the congestion position coordinates of the congestion area in the road section to be inquired.

The congestion location coordinates are then compared to the queuing location coordinates in the set of queuing areas.

And finally, judging whether the congestion area is matched with the queuing area or not according to the comparison result.

That is, the operation in the step (3) is actually realized by the coordinate information.

It should be understood that the above is only a specific modification procedure, and the technical solution of the present invention is not limited in any way, and those skilled in the art can set the modification procedure based on the actual application, and the modification is not limited herein.

And step S40, displaying the corrected traffic road condition information based on a preset display mode.

Specifically, in practical application, when the corrected traffic information is displayed in a preset display mode, only the text information may be displayed based on a preset format, such as "road name: a XX road segment; path length: XX meters; congested road section position: XXX; predicted congestion duration: and XX is divided ".

Furthermore, a voice broadcasting function can be matched when the text information is displayed for the user.

Furthermore, in order to enable the user to more intuitively know the traffic road condition information of the road section to be queried, the traffic road condition information can be combined with a corresponding map and marked in the map.

According to the traffic road condition query method provided by the embodiment, the road information corresponding to the road section to be queried and the vehicle information at the current moment are used as the correction parameters, and the original traffic road condition information corresponding to the road section to be queried is corrected based on the correction parameters, so that the traffic road condition information corresponding to the road section to be queried can reflect the congestion state of the road section to be queried at the current moment more accurately and truly, the reference value is greatly improved, and the travel of a user is facilitated.

Referring to fig. 5, fig. 5 is a flowchart illustrating a second embodiment of the method for querying traffic road conditions according to the present invention.

Based on the first embodiment, in this embodiment, in order to enable other users to obtain the actual original traffic road condition information, after step S40, the operation given in step S50 may be further included. For ease of understanding, the following detailed description is made in conjunction with fig. 5:

and step S50, replacing the original traffic road condition information with the corrected traffic road condition information.

Specifically, the original traffic road condition information is replaced by the corrected traffic road condition information, so that the local user and other users can conveniently inquire the traffic road condition information of the road section to be inquired. In the specific implementation process, the traffic information can be classified into the following types according to the source of the original traffic information:

(1) aiming at the condition that the original traffic road condition information is from a local database:

firstly, directly finding out a storage address of original traffic road condition information corresponding to a road section to be inquired according to the relation between identification information of each road section to be inquired and a corresponding original traffic road condition information storage address recorded in a pre-constructed local mapping relation table, then accessing the storage address, storing the corrected traffic road condition information under the storage address, and deleting the original traffic road condition information; or, directly allocating a new storage address for the corrected traffic road condition information and storing the new storage address, then modifying the storage address corresponding to the identification information of the road section to be inquired in the mapping relation table into the storage address of the corrected traffic road condition information, and then deleting the previous storage address and the original traffic road condition information stored under the storage address.

And then, synchronizing the locally updated data to the server so that other users can acquire the traffic road condition information of the road section to be inquired at the current moment from the server.

(2) Aiming at the condition that the original traffic road condition information comes from the server side:

for this situation, it is first determined whether the original traffic condition information has been synchronized from the server to the local database in the local database.

Correspondingly, if the local database is synchronized, replacing and updating are carried out according to the mode in the step (1); otherwise, directly distributing a storage address for the corrected traffic road condition information corresponding to the road section to be queried, establishing a corresponding relation between the storage address and the identification information of the road section to be queried, and further adding the corresponding relation into the local mapping relation table; or directly establishing the corresponding relation between the identification information of the road section to be inquired and the corrected traffic road condition information, and adding the corresponding relation into the local mapping relation table; and then, synchronizing the locally updated data to the server so that other users can acquire the traffic road condition information of the road section to be inquired at the current moment from the server.

Through the above description, it is not difficult to find that the method for inquiring traffic conditions provided by this embodiment replaces the original traffic condition information with the corrected traffic condition information after obtaining the corrected traffic condition information, so that other users can conveniently obtain the traffic condition information that can truly reflect the road section to be inquired, thereby accelerating the inquiry speed and improving the user experience.

In addition, an embodiment of the present invention further provides a storage medium, where a traffic condition query program is stored on the storage medium, and when being executed by a processor, the traffic condition query program implements the steps of the above-mentioned traffic condition query method.

Referring to fig. 6, fig. 6 is a block diagram illustrating a first embodiment of the traffic road condition query device according to the present invention.

As shown in fig. 6, the device for querying traffic conditions according to the embodiment of the present invention includes:

the extracting module 6001 is configured to, when a traffic road condition query instruction is received, extract a road segment to be queried from the traffic road condition query instruction;

an obtaining module 6002, configured to obtain road information of the road section to be queried, current vehicle information of the road section to be queried, and original traffic road condition information corresponding to the road section to be queried;

a correcting module 6003, configured to correct the original traffic road condition information based on the road section information and the vehicle information, so as to obtain corrected traffic road condition information;

and the display module 6004 is configured to display the corrected traffic condition information based on a preset display manner.

According to the traffic road condition query device provided by the embodiment, the road information corresponding to the road section to be queried and the vehicle information at the current moment are used as the correction parameters, and the original traffic road condition information corresponding to the road section to be queried is corrected based on the correction parameters, so that the traffic road condition information corresponding to the road section to be queried can reflect the congestion state of the road section to be queried at the current moment more accurately and truly, the reference value is greatly improved, and the travel of a user is facilitated.

Other embodiments or specific implementation manners of the traffic road condition query device of the present invention may refer to the above method embodiments, and are not described herein again.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

The invention also discloses A1 and a method for inquiring traffic conditions, which comprises the following steps:

A2, the method for querying traffic conditions as in a1, wherein the step of correcting the original traffic condition information based on the road section information and the vehicle information comprises:

A3, the method for querying traffic conditions as in a2, wherein the step of correcting the original traffic condition information based on the road segment scene and the vehicle information comprises:

judging whether the congestion area is matched with the queuing area or not;

A4, the method for querying traffic conditions as in A3, wherein the step of correcting the original traffic condition information based on the vehicle information comprises:

A5, the method for querying traffic conditions as in a4, wherein the step of correcting the original traffic condition information according to the comparison result comprises:

A6, the method for querying traffic conditions as in A3, wherein the step of determining whether the congestion area matches the queuing area comprises:

generating a queuing area set based on each queuing position coordinate;

The method for querying traffic road conditions as in any one of a1 to a6 for a7, wherein the step of obtaining the road section information of the road section to be queried comprises:

The method for querying traffic road conditions as in a7 at A8, wherein before the step of determining the road section information of the road section to be queried in the historical video data based on the image processing technology, the method comprises:

A9, the method for querying traffic conditions as in A8, wherein the step of expanding the historical video data includes:

acquiring reference video data based on the obstacle;

extending the historical video data based on the reference video data.

A10, the method for querying traffic conditions as in a9, wherein the step of obtaining reference video data based on the obstacle comprises:

A11, the method for querying traffic conditions as in a9, wherein the step of expanding the historical video data based on the reference video data comprises:

A12, the method for querying traffic conditions as in any one of a1 to a11, wherein after the step of displaying the corrected traffic condition information based on a preset display manner, the method further comprises:

The invention also discloses B13, a traffic road condition query device, which is characterized by comprising: the system comprises a memory, a processor and a traffic condition query program stored on the memory and capable of running on the processor, wherein the traffic condition query program is configured to implement the steps of the traffic condition query method as described in any one of A1-A12.

The invention also discloses C14 and a storage medium, which is characterized in that the storage medium is stored with a traffic condition query program, and the steps of the traffic condition query method as any one of A1-A12 are realized when the traffic condition query program is executed by a processor.

The invention also discloses D15, a traffic road condition query device, which comprises:

D16, the device for querying traffic road conditions as described in D15, where the correction module is further configured to determine a road segment scene corresponding to the road segment to be queried based on the road segment information; and correcting the original traffic road condition information based on the road section scene and the vehicle information.

D17, the traffic road condition query device according to D16, and the correction module, further configured to determine a congestion area in the road segment to be queried based on the original traffic road condition information; determining a queuing area existing in the road section to be queried based on the road section scene; judging whether the congestion area is matched with the queuing area or not; and if the congestion area is matched with the queuing area, correcting the original traffic road condition information based on the vehicle information.

D18, the device for querying traffic road conditions as described in D17, and the correction module, further configured to obtain the driving track of each vehicle located in the congestion area from the vehicle information; screening the queued vehicles facing the queuing area based on the driving track to obtain the number of the queued vehicles; comparing the number of the queued vehicles with a preset number of traffic congestion; and correcting the original traffic road condition information according to the comparison result.

D19, the traffic road condition query device according to D18, and the correction module, if the comparison result indicates that the number of queued vehicles is not greater than the preset number of congested vehicles, modifying congestion identification information corresponding to the congestion area in the original traffic road condition information into unblocked identification information; if the comparison result shows that the number of the queued vehicles is greater than the preset number of the traffic congestion, acquiring the driving speed of the vehicle which is positioned at the same horizontal position and is in the same lane in the same direction as the queued vehicles from the vehicle information; judging whether the running speed is greater than a preset congestion speed or not; and if the running speed is greater than the preset congestion speed, modifying congestion identification information corresponding to the congestion area in the original traffic road condition information into unblocked identification information.

D20, the traffic road condition query device according to D17, and the correction module, further configured to determine a queuing position coordinate of each queuing area relative to the road segment to be queried; generating a queuing area set based on each queuing position coordinate; determining congestion position coordinates of the congestion area in the road section to be inquired; comparing the congestion position coordinates to queuing position coordinates in the set of queuing areas; and judging whether the congestion area is matched with the queuing area or not according to the comparison result.

Claims

1. A method for inquiring traffic conditions is characterized by comprising the following steps:

2. The method according to claim 1, wherein the step of modifying the original traffic information based on the road section information and the vehicle information comprises:

3. The method according to claim 2, wherein the step of modifying the original traffic information based on the road segment scene and the vehicle information comprises:

judging whether the congestion area is matched with the queuing area or not;

4. The method according to claim 3, wherein the step of modifying the original traffic information based on the vehicle information comprises:

5. The method according to claim 4, wherein the step of correcting the original traffic information according to the comparison result comprises:

6. The method according to claim 3, wherein the step of determining whether the congestion area matches the queuing area comprises:

generating a queuing area set based on each queuing position coordinate;

7. The method as claimed in any one of claims 1 to 6, wherein the step of obtaining the section information of the section to be queried comprises:

8. An inquiry apparatus for traffic conditions, said apparatus comprising: a memory, a processor and a program for querying traffic conditions stored in the memory and operable on the processor, the program for querying traffic conditions being configured to implement the steps of the method for querying traffic conditions according to any one of claims 1 to 7.

9. A storage medium, wherein a program for querying traffic conditions is stored on the storage medium, and when executed by a processor, the program for querying traffic conditions implements the steps of the method for querying traffic conditions according to any one of claims 1 to 7.

10. A traffic condition query device, comprising: