CN110660221A - Information interaction method and device based on vehicle-road cooperative system - Google Patents
Information interaction method and device based on vehicle-road cooperative system Download PDFInfo
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- CN110660221A CN110660221A CN201910956159.3A CN201910956159A CN110660221A CN 110660221 A CN110660221 A CN 110660221A CN 201910956159 A CN201910956159 A CN 201910956159A CN 110660221 A CN110660221 A CN 110660221A
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/0104—Measuring and analyzing of parameters relative to traffic conditions
- G08G1/0125—Traffic data processing
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/16—Anti-collision systems
- G08G1/161—Decentralised systems, e.g. inter-vehicle communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
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Abstract
The invention provides an information interaction method and device based on a vehicle-road cooperative system, and relates to the technical field of vehicle networking. And then the real-time traffic information is sent to the mobile terminal through the wireless local area network module. The mobile terminal is connected with a wireless local area network provided by the vehicle-mounted equipment, and the real-time traffic information is acquired from the vehicle-mounted equipment and displayed. The mobile terminal provides display information of the vehicle-road cooperative system for the user, improves the resource utilization rate and is complementary with a vehicle human-computer interaction interface. Aiming at the vehicle-road collaborative development trend, the vehicle-road collaborative system is convenient to popularize, the efficient interconnection of people, vehicles, roads and the environment is realized, the traffic operation efficiency is improved, the accident rate is reduced, the traffic jam is relieved, and the travel cost is reduced.
Description
Technical Field
The invention relates to the technical field of vehicle networking, in particular to an information interaction method and device based on a vehicle road cooperative system.
Background
With the guiding policy of the national continuous C-V2X (Cellular-Vehicle-to-evolution) technology industry, the development of the Vehicle-road cooperation technology enters the large-scale exploration stage. V2X (Vehicle-to-event) is a new generation of telematics technology that connects vehicles to Everything. The V2X is realized based On information interaction between a roadside Unit RSU (road Side Unit) and a vehicle-mounted Unit OBU (On-board Unit), the obtained interaction information is provided for a driver through a human-computer interaction interface connected with the vehicle-mounted Unit OBU, the driver is ensured to drive more safely through reminding and assistance of the interaction information, accidents are reduced, traffic jam is relieved, and the display form of the visible interaction information is very important for the driver.
Most of the current display ends are based on human-computer interaction interfaces of vehicles, the display means is more traditional, the display is only performed through vehicle-mounted display screens arranged in the vehicles, and the display means through other equipment is lacked.
Disclosure of Invention
In view of the above, the present invention provides an information interaction method and apparatus based on a vehicle-road coordination system, which provides display information of the vehicle-road coordination system to a user through a mobile terminal of a mobile phone, improves resource utilization rate, and forms a complement with a vehicle human-computer interaction interface. Aiming at the vehicle-road collaborative development trend, the vehicle-road collaborative system is convenient to popularize, the efficient interconnection of people, vehicles, roads and the environment is realized, the traffic operation efficiency is improved, the accident rate is reduced, the traffic jam is relieved, and the travel cost is reduced.
In a first aspect, an embodiment of the present invention provides an information interaction method based on a vehicle-road coordination system, where the method is applied to a vehicle-mounted device, and the method includes:
acquiring cloud traffic data from a cloud server;
acquiring traffic data in vehicle-mounted equipment;
analyzing traffic data and cloud traffic data in the vehicle-mounted equipment in real time to obtain real-time traffic information;
and sending the real-time traffic information to the mobile terminal through the wireless local area network module.
In some embodiments, the step of acquiring traffic data in the vehicle-mounted device includes:
collecting traffic data through traffic collection equipment;
transmitting the traffic data to the edge computing device for processing;
and uploading the traffic data processed by the edge computing equipment to the vehicle-mounted equipment through the intelligent road side equipment.
In some embodiments, the process of uploading the traffic data processed by the edge computing device to the vehicle-mounted device through the intelligent roadside device is implemented through any one of the communication protocols of DSRC, LTE-V, 4G, 5G, WLAN and bluetooth.
In some embodiments, the step of analyzing the traffic data and the cloud traffic data in the vehicle-mounted device in real time to obtain real-time traffic information includes:
obtaining road congestion information from the obtained cloud traffic data;
and analyzing the traffic data and the road congestion information in real time to obtain real-time traffic information.
In some embodiments, the scenario of the real-time analysis includes: the method comprises the steps of curve speed limit early warning, accident-prone early warning, forward collision early warning, blind zone early warning, signal machine state early warning and pedestrian intrusion early warning.
In a second aspect, an embodiment of the present invention provides an information interaction method based on a vehicle-road coordination system, where the method is applied in a mobile terminal, and the method includes:
the mobile terminal is connected with a wireless local area network provided by the vehicle-mounted equipment;
acquiring real-time traffic information from vehicle-mounted equipment;
and displaying the real-time traffic information.
In some embodiments, the application program includes a plurality of interfaces respectively corresponding to the scenes of curve speed limit early warning, accident-prone early warning, forward collision early warning, blind zone early warning, signal machine state early warning and pedestrian intrusion early warning.
In some embodiments, the intelligent roadside apparatus is an RSU; the vehicle-mounted equipment is an OBU.
In a third aspect, an embodiment of the present invention provides an information interaction device based on a vehicle-road coordination system, where the system is applied to a vehicle-mounted device, and the device includes:
the cloud data request module is used for acquiring cloud traffic data from a cloud server;
the local data request module is used for acquiring traffic data in the vehicle-mounted equipment;
the data analysis module is used for analyzing the traffic data and the cloud traffic data in the vehicle-mounted equipment in real time to obtain real-time traffic information;
and the data sharing module is used for sending the real-time traffic information to the mobile terminal through the wireless local area network module.
In a fourth aspect, an embodiment of the present invention provides an information interaction device based on a vehicle-road coordination system, where the system is applied in a mobile terminal, and the device includes:
the data receiving module is used for connecting the mobile terminal with a wireless local area network provided by the vehicle-mounted equipment;
the data acquisition module is used for acquiring real-time traffic information from the vehicle-mounted equipment;
and the data display module is used for displaying the real-time traffic information.
The embodiment of the invention has the following beneficial effects: the embodiment of the invention provides an information interaction method and device based on a vehicle-road cooperative system. And then the real-time traffic information is sent to the mobile terminal through the wireless local area network module. The mobile terminal is connected with a wireless local area network provided by the vehicle-mounted equipment, and the real-time traffic information is acquired from the vehicle-mounted equipment and displayed. The mobile terminal provides display information of the vehicle-road cooperative system for the user, improves the resource utilization rate and is complementary with a vehicle human-computer interaction interface. Aiming at the vehicle-road collaborative development trend, the vehicle-road collaborative system is convenient to popularize, the efficient interconnection of people, vehicles, roads and the environment is realized, the traffic operation efficiency is improved, the accident rate is reduced, the traffic jam is relieved, and the travel cost is reduced.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a flowchart of an information interaction method based on a vehicle-road coordination system according to an embodiment of the present invention;
fig. 2 is a flowchart of step S102 in an information interaction method based on a vehicle-road cooperation system according to an embodiment of the present invention;
fig. 3 is a flowchart of step S103 in an information interaction method based on a vehicle-road coordination system according to an embodiment of the present invention;
fig. 4 is a flowchart of another information interaction method based on a vehicle-road coordination system according to an embodiment of the present invention;
fig. 5 is a flowchart of another information interaction method based on a vehicle-road coordination system according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an information interaction device based on a vehicle-road cooperation system according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of another information interaction device based on a vehicle-road coordination system according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Icon:
601-cloud data request module; 602-local data request module; 603-a data analysis module; 604-a data sharing module; 701-a data receiving module; 702-a data acquisition module; 703-a data presentation module; 801-a processor; 802-a memory; 803-a bus; 804-communication interface.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Vehicle to evolution (V2X) is a new generation of communication technology for connecting a Vehicle to Everything, V in V2X represents a Vehicle, and X represents any object that interacts information with the Vehicle. In terms of current technology, X mainly includes people, vehicles, traffic side infrastructure and networks. Currently, V2X includes six major categories, namely, Vehicle-to-Vehicle (V2V), Vehicle-to-roadside device (V2R), Vehicle-to-Infrastructure (V2I), Vehicle-to-Pedestrian (V2P), Vehicle-to-locomotive (V2M), and Vehicle-to-bus (V2T).
C in C-V2X refers to Cellular (Cellular), which is a vehicular wireless communication technology formed by evolution of Cellular communication technologies such as 3G/4G/5G and the like, and can more conveniently and quickly interconnect vehicles.
Therefore, the V2X and the C-V2X can organically link the traffic participation elements such as people, vehicles, roads, clouds and the like, so that the vehicle can be supported to obtain more information than a single vehicle can perceive, and the innovation and the application of the automatic driving technology are promoted; the method is also beneficial to constructing an intelligent traffic system, promotes the new mode and new state development of the automobile and traffic service, and has important significance for improving traffic efficiency, saving resources, reducing pollution, reducing accident rate and improving traffic management.
At present, a display end in V2X is mostly based on a human-computer interaction interface of a vehicle, the display means is more traditional, the display is only performed through a vehicle machine display screen arranged in the vehicle, and the means for displaying through other equipment is lacked. Therefore, a method for using a mobile phone terminal as a vehicle-road cooperative system information display platform is lacked in the conventional V2X. The display means of the type can not only improve the resource utilization rate, but also has positive effect on promoting the application of the vehicle-road cooperative system.
In view of the problem that the vehicle human-computer interaction interface display in the conventional V2X needs to be set in advance, the present invention aims to provide a vehicle-road cooperative interaction method and system, which can be implemented by using related software or hardware, and is described below by way of embodiments.
In order to facilitate understanding of the embodiment, first, a detailed description is given to an information interaction method based on a vehicle-road coordination system, which is disclosed in the embodiment of the present invention and is applied to a vehicle-mounted device. The vehicle-mounted device in this embodiment may be understood as an intelligent vehicle-mounted terminal, which is used for performing modern management on a vehicle, such as driving safety monitoring management, operation management, quality of service management, intelligent centralized scheduling management, electronic stop board control management, and the like. The vehicle-mounted equipment comprises a display screen for displaying data, and a user can complete the watching and controlling of the vehicle-road cooperative interaction process by touching the display screen. Specifically, the flow chart of the method is shown in fig. 1, and includes the following steps:
and step S101, obtaining cloud traffic data from a cloud server.
In order to realize vehicle modernization management, the vehicle-mounted equipment definitely needs to acquire data through an external network, the data acquisition ways are various, and different types of data need to be acquired from corresponding servers. Due to the limitation of the use scene, the vehicle cannot interact with the server in a wired connection mode and can only interact with the server in a wireless mode. Therefore, the servers need to be deployed in the cloud, and are connected to the cloud server through a WLAN or a cellular network built in the vehicle-mounted device for data interaction.
The cloud server is provided with various traffic data, the traffic data are collected from the collecting ends and then uploaded to the cloud server, and the traffic data are collected and integrated through the cloud server to form various traffic data required by a user, such as road congestion information, accident early warning information, blind area early warning information, overspeed early warning information and the like.
The data of the cloud server is interacted with the vehicle-mounted equipment through the data interfaces which are respectively set, and the data acquisition process is realized through a wireless module in the vehicle-mounted equipment, for example, the data sent from the server is received through a wireless receiving module in the vehicle-mounted equipment; and data transmission can be carried out through a mobile network realized by the SIM card module in the vehicle-mounted equipment.
Step S102, acquiring traffic data in the vehicle-mounted equipment.
The traffic data mentioned in this step refers to traffic data already stored in the vehicle-mounted device, and the traffic data may be acquired in various ways, and may be acquired by external devices of the vehicle, for example, by using a vehicle-mounted camera, a microwave radar, a laser radar, and other active detection devices built in the vehicle to acquire traffic information in real time. In the mode, the vehicle-mounted camera is used for analyzing the surrounding environment of the automobile in the driving process and analyzing various scenes such as traffic lights, speed limit boards, the number of vehicles and the like; the microwave radar and the laser radar are used for assisting in processing collision early warning and blind area early warning in the running process of the automobile and are mainly used for providing traffic data in the aspect of vehicle safety. After being gathered, the traffic data are uploaded to the vehicle-mounted equipment through the automobile connecting equipment, and the traffic data can be understood as locally generated traffic data and do not relate to networking operation.
The traffic data in the vehicle-mounted device can also be acquired through networking, for example, after the traffic data acquired from the server through the previous time node is processed again, the traffic data is temporarily stored in the local module of the vehicle-mounted device and used for data analysis of the next node. Such traffic data may therefore be understood as locally stored networked traffic data.
And S103, analyzing the traffic data and the cloud traffic data in the vehicle-mounted equipment in real time to obtain real-time traffic information.
And (3) carrying out real-time analysis on the traffic data in the vehicle-mounted equipment and the cloud traffic data acquired in the step (S101) to obtain real-time traffic information, wherein the analysis process relates to the application scene of V2X, such as curve speed limit early warning, accident-prone early warning, forward collision early warning, blind area early warning, signal machine state early warning, pedestrian intrusion early warning and the like. The actual vehicle state and the cloud traffic data acquired from the traffic data are integrated, so that the cloud traffic data are further analyzed, and more accurate and real-time traffic information is provided.
And step S104, transmitting the real-time traffic information to the mobile terminal through the wireless local area network module.
The acquired real-time traffic information is shared to other mobile terminals through the wireless local area network module, and finally, the display and operation of the real-time traffic information can be realized through the mobile terminals. The wireless local area network module is provided by the vehicle-mounted equipment and used as a channel for data transmission. In the implementation process, the wireless local area network module in the vehicle-mounted device is controlled, so that the vehicle-mounted unit is used as a hotspot of a data sending source, and real-time traffic information is shared through a wifi network.
In the mobile terminal, the wifi network provided by the vehicle-mounted equipment is connected, the connecting channel between the mobile terminal and the vehicle-mounted equipment is opened, and the mutual transmission of real-time traffic information is realized. The mobile terminal can acquire the real-time traffic information through a corresponding application program, and display different types of real-time traffic information through different interfaces or components provided by the application program. The application program is pre-installed in the mobile terminal, the user firstly accesses the mobile terminal into a wifi network provided by the vehicle-mounted equipment, and then the interaction of data can be completed after the application program is executed.
According to the information interaction method based on the vehicle-mounted road coordination system, the vehicle-mounted equipment is used for acquiring cloud traffic data from the cloud server, and then carrying out comprehensive analysis on the cloud traffic data and the local traffic data of the vehicle-mounted equipment in real time to obtain real-time traffic information. And sending the real-time traffic information to the mobile terminal through the wireless local area network module. And the mobile terminal is connected with a wireless local area network provided by the vehicle-mounted equipment to acquire the real-time traffic information provided by the vehicle-mounted equipment and display the real-time traffic information. The method finally realizes that the mobile terminal provides the display information of the vehicle-road cooperative system for the user, improves the resource utilization rate, forms complementation with a vehicle human-computer interaction interface, realizes efficient interconnection of people, vehicles, roads and environment, improves the traffic operation efficiency, reduces the accident rate, relieves traffic jam and reduces the travel cost.
As shown in fig. 2, in some embodiments, the step S102 of acquiring traffic data in the vehicle-mounted device further includes the following steps:
step S201, collecting traffic data through traffic collecting equipment.
The traffic data of the road is subjected to data acquisition by traffic acquisition equipment, and the traffic acquisition equipment can be provided for an intelligent Road Side Unit (RSU) in V2X; the intelligent device can also be provided by intelligent devices deployed in a traffic network, such as road monitoring, road signal lamps and the like; or may be provided by a camera, radar, or the like provided in the vehicle itself.
And step S202, transmitting the traffic data to the edge computing equipment for processing.
The collected traffic data comprises different types of data and relates to various road information, and if the traffic data is once handed to the vehicle-mounted equipment or uploaded to the cloud server, the traffic data causes higher operation processing pressure, so the traffic data can be transmitted to the edge computing equipment for preprocessing.
The edge computing device is deployed at the next node of the traffic collection device, collected traffic data can be transmitted to the traffic collection device for preprocessing, and in the process, the edge computing device can be used for computing and processing scene traffic data with high instantaneity requirements, and the method comprises the following steps: various pre-warning information, real-time location sharing, road identification data, and the like.
For example, in the following scenes, modules such as a video camera and a radar which are arranged based on a vehicle perform real-time analysis on pedestrians and vehicles in a road, the analysis results include pedestrian intrusion early warning, vehicle pre-collision early warning, signal lamp conditions, vehicle congestion conditions and the like, the data can be accessed to edge computing equipment for real-time analysis, and then the results are transmitted to vehicle-mounted equipment or sent to a cloud server. Therefore, the data with higher instantaneity are preprocessed through the edge computing device, the situation that the data with large data levels are directly sent to the vehicle-mounted device or the cloud server is avoided, and the operation pressure of the vehicle-mounted device or the cloud server is reduced.
And step S203, uploading the traffic data processed by the edge computing equipment to vehicle-mounted equipment through intelligent road side equipment.
After the edge computing equipment completes the cooperative interaction of the vehicle and the road, the obtained computing result is transmitted to the vehicle-mounted equipment through the intelligent road side equipment and is used for sharing data by the subsequent vehicle-mounted equipment, and finally the data are received and displayed through the mobile terminal.
In some embodiments, the process of uploading the traffic data processed by the edge computing device to the Vehicle-mounted device through the smart roadside device is implemented by any one of the communication protocols mentioned above, such as DSRC (Dedicated Short Range Communications), LTE-V (Long Term Evolution-Vehicle), 4G (4th-Generation, fourth Generation), 5G (5th-Generation, fifth Generation), WLAN (wireless local Area Network), and bluetooth.
As shown in fig. 3, in some embodiments, the step S103 of analyzing the traffic data and the cloud traffic data in real time to obtain real-time traffic information further includes:
step S301, obtaining road congestion information from the acquired cloud traffic data.
The cloud traffic data includes various road information, and the required road information is required to be analyzed and acquired. The cloud traffic data is acquired by sending a request to the cloud server, and the request includes road congestion information.
The road congestion information is obtained by comprehensively summarizing and analyzing the running states of vehicles, for example, if the speed of a plurality of vehicles in a certain road is lower than a preset threshold value, the road is determined to be a congested road section. The road congestion information also includes congestion causes such as car accidents, road damages, temporary traffic control, etc., which are integrated into the road congestion information.
And step S302, carrying out real-time analysis on the traffic data and the road congestion information to obtain real-time traffic information.
The traffic data mentioned in this step refers to traffic data already stored in the vehicle-mounted device, and the traffic data may be acquired through an external device of the vehicle, for example, by using a vehicle-mounted camera, a microwave radar, a laser radar, and other active detection devices built in the vehicle to acquire traffic information in real time. In the mode, the vehicle-mounted camera is used for analyzing the surrounding environment of the automobile in the driving process and analyzing various scenes such as traffic lights, speed limit boards, the number of vehicles and the like; the microwave radar and the laser radar are used for assisting in processing collision early warning and blind area early warning in the running process of the automobile and are mainly used for providing traffic data in the aspect of vehicle safety.
In some embodiments, the scenario of the real-time analysis includes: the method comprises the steps of curve speed limit early warning, accident-prone early warning, forward collision early warning, blind zone early warning, signal machine state early warning and pedestrian intrusion early warning. The scene for analyzing the traffic data and the road congestion information in real time to obtain the real-time traffic information is specifically as follows.
For example, in a situation of warning a speed limit at a curve, when a driver is unfamiliar with a road condition or careless, the driver may decelerate early without considering a curve ahead, which may cause a danger at the time of turning. Therefore, on the premise that the active detection device in the vehicle equipment detects that a curve is formed in the front, the road information provided by the cloud traffic data is combined to judge that the front is subjected to sharp turning, so that the driver of the main vehicle is warned to decelerate and drive, and accidents are reduced.
In the early warning scene of the accident, the vehicle determines the driving position through the positioning information in the traffic data, the driving position is judged with the front accident easily-occurring zone obtained in the cloud traffic data, when the vehicle drives to the zone, the early warning prompt is carried out on the vehicle owner, the driver can conveniently deal with the accident easily-occurring zone in advance, the sensing capability of the vehicle on the accident frequently-occurring zone is improved, and the risk of the accident of the vehicle driving to the zone is reduced.
In the forward collision early warning scene, the vehicle is subjected to pre-collision detection through an active safety detection device of the vehicle in the driving process, the process is integrated with the vehicle condition in the road acquired from the cloud traffic data, and the positions of other vehicles on the current road and the rear-end collision risk are determined more accurately. When the risk of rear-end collision occurs, the vehicle is emergently braked, the alarm information is provided for traffic data in the vehicle-mounted equipment in the process, and then the traffic data is sent to cloud traffic data to remind other vehicles.
In the blind area early warning scene, because the driver is located at one side of the vehicle instead of the central position, a larger blind area can be generated at the other side, and the blind area of the vehicle with a higher ground area is larger. Through the detection device who sets up in the vehicle, like the radar, the condition of blind area can audio-visual observation to the camera. When vehicles or obstacles with higher collision risk levels are found in the blind area in the driving process, the information is stored in local traffic data, and is interacted through cloud traffic data and shared by other vehicle owners, and the vehicle owners are reminded to keep alert when the vehicle owners pass through the road section, so that the safety risk brought by the blind area is reduced.
In the early warning scene of the state of the signal machine, the vehicle acquires the information of the signal lamps of the intersection and the local road condition information through road side equipment, the traffic data and cloud traffic data are analyzed in real time, and the vehicle is guided more accurately in real time by combining the position and the running state of the vehicle. For example, the vehicle still arrives at the intersection for 30 seconds on the premise of keeping the speed, the intersection is green after 30 seconds, and the vehicles which do not wait for the traffic light under the intersection can be known through the cloud traffic data, so that the driver can be informed of keeping the speed to directly pass through the intersection after analysis. Therefore, the road passing efficiency can be effectively improved by analyzing the local traffic data and the cloud traffic data in real time.
In the early warning scene of pedestrian intrusion, when a pedestrian intrudes into a closed road, the pedestrian can be detected through a camera arranged on the road or a camera arranged in a vehicle, detected pedestrian data is sent to vehicle-mounted equipment, and then after interactive analysis is carried out on the pedestrian data and cloud traffic data, early warning is carried out on surrounding vehicles entering the area, and a driver is reminded to decelerate and avoid in advance.
Various processes for analyzing the traffic data and the cloud traffic data in real time to obtain the real-time traffic information are described in the above scenario, and similar analysis methods are adopted for the processing processes in other scenarios in V2X, which are not explained one by one here.
The embodiment of the invention also provides an information interaction method based on a vehicle-road cooperation system, which is applied to a mobile terminal, and as shown in fig. 4, the method comprises the following steps:
step S401, the mobile terminal is connected with a wireless local area network provided by the vehicle-mounted equipment.
Mobile terminals include smart phones, tablets and other mobile electronic devices, and in a broad sense, a mobile terminal refers to a part of a mobile communication device that terminates wireless transmission from or to a network and adapts the capabilities of the terminal device to the wireless transmission. In the present embodiment, the device mainly refers to a smart phone, a tablet computer, and the like. These mobile terminals have networking capability and can access the network through wireless local area networks, bluetooth, and cellular networks.
After detecting the wireless local area network provided by the vehicle-mounted equipment, the mobile terminal is connected with the vehicle-mounted equipment after verification, and a transmission channel between the mobile terminal and the vehicle-mounted equipment is opened for subsequent transmission of traffic information.
Step S402, acquiring real-time traffic information from the vehicle-mounted equipment.
The real-time traffic information in the vehicle-mounted equipment realizes data interaction with the mobile terminal through the wireless local area network connected with the mobile terminal, and the acquisition process of the real-time traffic information can be realized through an application program of the mobile terminal. The application program is installed in the mobile terminal and is specially used for processing traffic data. And calling and acquiring the real-time traffic information through different data calling interfaces in the application program.
And S403, displaying the real-time traffic information.
The acquired real-time traffic information is displayed through a display interface of the mobile terminal, for example, through an application program installed in the mobile terminal, and the real-time traffic information is displayed in a display area provided by the application program. Different types of real-time traffic information can be displayed in respective corresponding areas, for example, early warning information can be displayed through a push notification bar of the mobile device; the road congestion information may be displayed in a map.
In some embodiments, the application program includes a plurality of interfaces respectively corresponding to the scenes of curve speed limit early warning, accident-prone early warning, forward collision early warning, blind zone early warning, signal machine state early warning and pedestrian intrusion early warning. The interfaces in different scenes can be displayed in different areas in the mobile device, or only one of the interfaces can be displayed.
In the above embodiment, it can be seen that the vehicle-mounted device sends the real-time traffic information to the mobile terminal through the wireless local area network module. The mobile terminal is connected with a wireless local area network provided by the vehicle-mounted equipment, and the real-time traffic information is acquired from the vehicle-mounted equipment and displayed. As the mobile device is more familiar and easy to use for the user, the display information of the vehicle-road cooperative system is provided for the user through the mobile terminal, so that the user can receive and use the display information more easily, and the display information is complementary with a vehicle human-computer interaction interface. The popularization and the use of the vehicle-road cooperative system are facilitated, the efficient interconnection of people, vehicles, roads and the environment is further realized, the traffic operation efficiency is improved, the accident rate is reduced, the traffic jam is relieved, and the travel cost is reduced.
When the method in the embodiment is applied to a V2X scene, the intelligent roadside device may be an RSU, the vehicle-mounted device is an OBU, and the method in the embodiment may be implemented by the RSU and the OBU in combination with various scenes in the V2X.
For a better understanding of the above process, reference is made to another flow chart provided in fig. 5. Firstly, data acquired by facilities such as a video camera, a microwave radar and a laser radar are analyzed in real time through edge computing equipment, traffic information such as other vehicles and pedestrians in a road is identified, and the information is transmitted to an intelligent Road Side Unit (RSU) through various communication modes such as LTE-V, 4G and 5G. Data acquired by the video camera, the microwave radar, the laser radar and other facilities can be sent to the cloud for processing, analyzing and predicting, traffic information such as traffic jam state information is generated, and the traffic information is transmitted to the OBU through various communication modes. It should be noted that the detection devices connected to the edge computing device in this embodiment are not limited to the above three types, and other detection devices capable of detecting traffic data may also be used in this embodiment and perform data interaction with the edge computing device.
And the intelligent road side unit RSU and the intelligent vehicle-mounted unit OBU are communicated through networks such as DSRC, LET-V, 4G, 5G and the like, so that interaction of the vehicle-road cooperative scene information is realized.
Intelligent vehicle-mounted unit OBU passes through wireless network and gives vehicle route cooperative system with data transmission, and 2.4G wifi can be chooseed for use to wireless network, also can choose for use 5G wifi. The vehicle-road cooperation system is an application program installed in the mobile device in advance, and data acquisition is realized through a data interface in the application program. In the application program of the vehicle-road cooperative system, the application program includes multiple application scenarios of V2X, such as curve speed limit early warning, accident-prone early warning, forward collision early warning, blind zone early warning, signal machine state early warning, pedestrian intrusion early warning, and the like, and the specific implementation manner refers to the description in the above embodiments.
It should be noted that, the scenario described in the above embodiment is not only the scenario of using V2X described in the specification, but also the method is used for other scenarios in V2X, and the implemented method is similar to the above embodiment.
The application program of the vehicle-road cooperative system is provided with downloading service by the cloud server, the application program issues a downloading program in a registered application store at the cloud, a user downloads the application program through an application program downloading interface, and the installation mode can realize the calling of the program downloading interface by scanning the two-dimensional code.
After the user uses the mobile device to complete the installation of the application program, the wifi provided by the intelligent vehicle-mounted unit OBU is connected, so that the data in the intelligent vehicle-mounted unit OBU can be accessed, and the traffic data processing process can be realized by combining the application program.
Corresponding to the above embodiment of the information interaction method based on the vehicle-road coordination system, refer to an information interaction device based on the vehicle-road coordination system shown in fig. 6, where the device is applied to a vehicle-mounted device, and the device includes the following modules:
the cloud data request module 601 is used for acquiring cloud traffic data from a cloud server;
a local data request module 602, configured to obtain traffic data in a vehicle-mounted device;
the data analysis module 603 is configured to analyze traffic data in the vehicle-mounted device and cloud traffic data in real time to obtain real-time traffic information;
the data sharing module 604 is configured to send the real-time traffic information to the mobile terminal through the wireless lan module.
Corresponding to the above embodiment of the information interaction method based on the vehicle-road coordination system, referring to fig. 7, an information interaction device based on the vehicle-road coordination system is applied to a mobile terminal, and the device includes the following modules:
the data receiving module 701 is used for connecting the mobile terminal with a wireless local area network provided by the vehicle-mounted equipment;
a data obtaining module 702, configured to obtain real-time traffic information from a vehicle-mounted device;
and the data display module 703 is configured to display the real-time traffic information.
The implementation principle and the generated technical effect of the information interaction device based on the vehicle-road coordination system provided by the embodiment of the invention are the same as those of the embodiment of the information interaction method based on the vehicle-road coordination system, and for brief description, corresponding contents in the embodiment of the method can be referred to where the embodiment is not mentioned.
The embodiment also provides an electronic device, which is shown in fig. 8 as a schematic structural diagram, and includes a processor 801 and a memory 802; the memory 802 is configured to store one or more computer instructions, and the one or more computer instructions are executed by the processor to implement the information interaction method based on the vehicle-road coordination system.
The server shown in fig. 8 further comprises a bus 803 and a communication interface 804, the processor 801, the communication interface 804 and the memory 802 being connected by the bus 803. The server may be a network edge device.
The Memory 802 may include a high-speed Random Access Memory (RAM) and may further include a non-volatile Memory (non-volatile Memory), such as at least one disk Memory. The bus 803 may be an ISA bus, PCI bus, EISA bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one double-headed arrow is shown in FIG. 8, but that does not indicate only one bus or one type of bus.
The communication interface 804 is configured to connect with at least one user terminal and other network units through a network interface, and send the packaged IPv4 message or IPv4 message to the user terminal through the network interface.
The processor 801 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 801. The Processor 801 may be a general-purpose Processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; the device can also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, a discrete Gate or transistor logic device, or a discrete hardware component. The various methods, steps, and logic blocks disclosed in the embodiments of the present disclosure may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present disclosure may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 802, and the processor 801 reads the information in the memory 802, and completes the steps of the method of the foregoing embodiment in combination with the hardware thereof.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus, and method may be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, a division of a unit is merely a division of one logic function, and there may be other divisions when actually implemented, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some communication interfaces, and may be in an electrical, mechanical or other form.
Units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a non-volatile computer-readable storage medium executable by a processor. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An information interaction method based on a vehicle-road cooperation system is characterized in that the method is applied to vehicle-mounted equipment, and the method comprises the following steps:
acquiring cloud traffic data from a cloud server;
acquiring traffic data in the vehicle-mounted equipment;
analyzing the traffic data in the vehicle-mounted equipment and the cloud traffic data in real time to obtain real-time traffic information;
and sending the real-time traffic information to a mobile terminal through a wireless local area network module.
2. The method of claim 1, wherein the step of obtaining traffic data in the vehicle-mounted device comprises:
collecting traffic data through traffic collection equipment;
transmitting the traffic data to an edge computing device for processing;
and uploading the traffic data processed by the edge computing equipment to the vehicle-mounted equipment through intelligent road side equipment.
3. The method of claim 2, wherein the process of uploading the traffic data processed by the edge computing device to the vehicle-mounted device through the intelligent roadside device is implemented by any one of the communication protocols of DSRC, LTE-V, 4G, 5G, WLAN and bluetooth.
4. The method according to claim 2, wherein the step of analyzing the traffic data in the vehicle-mounted device and the cloud traffic data in real time to obtain real-time traffic information comprises:
obtaining road congestion information from the obtained cloud traffic data;
and analyzing the traffic data and the road congestion information in real time to obtain the real-time traffic information.
5. The method of claim 4, wherein the real-time analysis of the scene comprises: the method comprises the steps of curve speed limit early warning, accident-prone early warning, forward collision early warning, blind zone early warning, signal machine state early warning and pedestrian intrusion early warning.
6. An information interaction method based on a vehicle-road cooperation system is characterized in that the method is applied to a mobile terminal and comprises the following steps:
the mobile terminal is connected with a wireless local area network provided by the vehicle-mounted equipment;
acquiring real-time traffic information from the vehicle-mounted equipment;
and displaying the real-time traffic information.
7. The method of claim 6, wherein the process of presenting the real-time traffic information comprises: the method comprises the following steps of curve speed limit early warning, accident-prone early warning, forward collision early warning, blind zone early warning, signal machine state early warning and pedestrian intrusion early warning.
8. The method of any of claims 1-7, wherein the intelligent roadside device is an RSU; the vehicle-mounted equipment is an OBU.
9. An information interaction device based on a vehicle-road cooperation system is applied to vehicle-mounted equipment, and the device comprises:
the cloud data request module is used for acquiring cloud traffic data from a cloud server;
the local data request module is used for acquiring traffic data in the vehicle-mounted equipment;
the data analysis module is used for analyzing the traffic data in the vehicle-mounted equipment and the cloud traffic data in real time to obtain real-time traffic information;
and the data sharing module is used for sending the real-time traffic information to the mobile terminal through the wireless local area network module.
10. An information interaction device based on a vehicle-road cooperation system is applied to a mobile terminal, and comprises:
the data receiving module is used for connecting the mobile terminal with a wireless local area network provided by the vehicle-mounted equipment;
the data request module is used for acquiring real-time traffic information from the vehicle-mounted equipment;
and the data display module is used for displaying the real-time traffic information.
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