CN111404976B

CN111404976B - Data processing method, device and system, vehicle-mounted terminal and medium

Info

Publication number: CN111404976B
Application number: CN201910002340.0A
Authority: CN
Inventors: 李源
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2019-01-02
Filing date: 2019-01-02
Publication date: 2023-05-09
Anticipated expiration: 2039-01-02
Also published as: CN111404976A

Abstract

The invention discloses a data processing method, a device, a system, a vehicle-mounted terminal and a medium, which are used for solving the problems of untimely processing of a large amount of vehicle information and high network pressure in the prior art, and the method comprises the following steps: the first vehicle-mounted terminal receives second vehicle basic safety BSM information broadcast by the second vehicle-mounted terminal and converts the information acquired by the first vehicle-mounted terminal into first BSM information broadcast; judging whether a preset field in the second BSM information identifies a second vehicle to generate an emergency; and if so, adopting corresponding measures to process according to the type of the emergency event and the position information of the second vehicle.

Description

Data processing method, device and system, vehicle-mounted terminal and medium

Technical Field

The invention relates to the technical fields of data processing, data integration and Internet of vehicles, in particular to a data processing method, a device, a system, a vehicle-mounted terminal and a medium.

Background

At present, the development of vehicles is necessarily towards intelligence and automation in view of the technical development, the industrial promotion and the demands of users. In order to realize comprehensive autonomous control of the vehicle, the vehicle is required to realize acquisition and judgment of massive information. The finer the data, the more can assist the vehicle to realize accurate judgement, thereby ensure the security and the high efficiency that the vehicle was driven. In the future, in addition to information such as video and radar acquired by a vehicle through a bicycle sensor, information acquired through network communication will widen the data source of the vehicle in a wider range and ensure reliability.

Then, according to the results of the current market research, single statistics network connection information is provided, the cars hold up to 200 ten thousand cities, and the network connection data of the cars reach 2000 ten thousand pieces/second, 1609 TB/day; in order to meet the low-delay requirement of the Internet of vehicles service, the auxiliary driving stage is about 100ms, the future automatic driving stage is lower than 10ms, and the processing delay reserved for the auxiliary driving application is only 20-50ms; at the same time, the storage of these data would be a huge overhead, and by 2020, the data volume of the intelligent car would be estimated to be 4 TB/car/day. Therefore, the application of the internet of vehicles not only puts high demands on future network performance, but also puts new challenges on the capability of the internet of vehicles terminal. Particularly, as a vehicle-mounted terminal, how to realize the application of the vehicle networking service on the premise of meeting the vehicle-mounted design is a difficult problem to be solved at present due to the influence of the form, the volume, the power and the like.

Because the internet of vehicles service has not been widely popularized at present, the data to be processed by the vehicles has not reached a large level, and therefore, the scheme adopted by each science and technology company comprises:

1. the vehicle-mounted processor with stronger computing capability is installed to complete the processing of reserve data, the scheme is the most direct and simple mode at present, but the data processed by the current vehicle networking is only information such as images and radars acquired by the vehicle sensors, and a large amount of data information interaction is not performed with the outside, so that the data size is far smaller than the requirement of future internet-connected intelligent automobiles. Taking BSM information in internet of vehicles communication as an example, 10 BSM messages are generated in each vehicle 1s, and according to 3GPP measurement and calculation, up to 175 vehicle communications can be accommodated in a cell, then each vehicle will receive 1740 BSM information per second, and besides, SPAT (traffic light phase information), RSI (road side information traffic event information, etc.), RSM (road side message traffic participant status information), etc. Thus requiring the terminal chip to process approximately 2000 messages per second, which is currently not possible and is cost prohibitive.

2. The method has low requirements on the data processing capacity of the vehicle-mounted terminal, but because a large amount of data needs to be transmitted back to a processing platform through a network, the network resource consumption is overlarge, and meanwhile, the data processing with extremely low time delay cannot meet the requirements. At present, simple operation can be realized in some closed parks, and the popularization difficulty is high.

Disclosure of Invention

The embodiment of the invention provides a data processing method, a device, a system, a vehicle-mounted terminal and a medium, which are used for solving the problems that the existing large amount of vehicle information is not processed timely and the network pressure is high.

The embodiment of the invention provides a data processing method, which comprises the following steps:

the first vehicle-mounted terminal receives second vehicle basic safety BSM information broadcast by the second vehicle-mounted terminal and converts the information acquired by the first vehicle-mounted terminal into first BSM information broadcast;

judging whether a preset field in the second BSM information identifies a second vehicle to generate an emergency;

and if so, adopting corresponding measures to process according to the type of the emergency event and the position information of the second vehicle.

Further, the converting the self-collected information into the first BSM information broadcast includes:

Judging whether the information is a preset emergency event or not;

if yes, converting the information into first BSM information, setting a corresponding field in preset fields in the first BSM information as information for identifying an emergency, and broadcasting the first BSM information;

if not, converting the information into first BSM information, setting a corresponding field in preset fields in the first BSM information as information for identifying non-emergency events, and broadcasting the first BSM information.

Further, the preset field is a field which represents a special state of the vehicle in a safety information set safe field of the vehicle-mounted terminal.

Further, the method further comprises:

receiving traffic event information RSI and traffic participant status information RSM broadcast by a road side unit RSU;

and adjusting the driving strategy of the driver according to the RSI and the RSM.

Further, the method further comprises:

receiving traffic light phase information SPAT broadcasted by a signal lamp;

and adjusting the driving strategy according to the SPAT.

The embodiment of the invention provides a data processing system, which comprises at least two vehicle-mounted terminals:

each vehicle-mounted terminal is used for receiving the basic safety BSM information of the second vehicle broadcasted by other vehicle-mounted terminals and converting the information acquired by the vehicle-mounted terminals into the first BSM information broadcasted; judging whether a preset field in the second BSM information identifies other vehicles to generate emergency events; and if so, adopting corresponding measures to process according to the type of the emergency event and the position information of the other vehicles.

Further, the system further comprises:

the signal lamp is used for broadcasting traffic light phase information SPAT;

the vehicle-mounted terminal is also used for receiving traffic light phase information SPAT broadcasted by the signal lamp; and adjusting the driving strategy according to the SPAT.

Further, the system further comprises:

a road side unit RSU, which is used for receiving BSM information broadcasted by the vehicle-mounted terminal; reporting the received BSM information to a V2X platform;

the V2X platform is used for receiving BSM information reported by the RSU, determining traffic event information RSI and traffic participant state information RSM according to the BSM information, and sending the RSI and the RSM to the RSU;

the RSU is also used for receiving and broadcasting the RSI and the RSM sent by the V2X platform;

the vehicle-mounted terminal is also used for receiving traffic event information RSI broadcast by the RSU and traffic participant state information RSM; and adjusting the driving strategy of the driver according to the RSI and the RSM.

Further, the V2X platform is further configured to delete redundant BSM information that does not generate an RSI and an RSM.

Further, the vehicle-mounted terminal is specifically configured to determine whether the information is a preset emergency event; if yes, converting the information into first BSM information, setting a corresponding field in preset fields in the first BSM information as information for identifying an emergency, and broadcasting the first BSM information; if not, converting the information into first BSM information, setting a corresponding field in preset fields in the first BSM information as information for identifying non-emergency events, and broadcasting the first BSM information.

The embodiment of the invention provides a data processing device, which comprises:

the conversion module is used for receiving the basic safety BSM information of the second vehicle broadcasted by the second vehicle-mounted terminal and converting the information acquired by the conversion module into the first BSM information broadcasted;

the judging module is used for judging whether a preset field in the second BSM information identifies a second vehicle to generate an emergency event;

and the processing module is used for adopting corresponding measures to process according to the type of the emergency event and the position information of the second vehicle if the emergency event is detected.

The embodiment of the invention provides a vehicle-mounted terminal, which comprises: a processor and a memory, the memory storing a computer program, the program being executed by the processor;

the processor is used for receiving the basic safety BSM information of the second vehicle broadcasted by the second vehicle-mounted terminal and converting the information acquired by the processor into the first BSM information broadcasted; judging whether a preset field in the second BSM information identifies a second vehicle to generate an emergency; and if so, adopting corresponding measures to process according to the type of the emergency event and the position information of the second vehicle.

Further, the processor is specifically configured to determine whether the information is a preset emergency event; if yes, converting the information into first BSM information, setting a corresponding field in preset fields in the first BSM information as information for identifying an emergency, and broadcasting the first BSM information; if not, converting the information into first BSM information, setting a corresponding field in preset fields in the first BSM information as information for identifying non-emergency events, and broadcasting the first BSM information.

Further, the processor is further configured to receive traffic event information RSI and traffic participant status information RSM broadcast by the road side unit RSU; and adjusting the driving strategy of the driver according to the RSI and the RSM.

Further, the processor is further configured to receive traffic light phase information SPAT broadcasted by the signal lamp; and adjusting the driving strategy according to the SPAT.

The embodiment of the invention discloses a vehicle-mounted terminal, which comprises: the device comprises a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory are communicated with each other through the communication bus; the memory has stored therein a computer program which, when executed by the processor, causes the processor to perform the steps of any of the methods described above.

The embodiment of the invention discloses a computer readable storage medium storing a computer program executable by a terminal, which when run on the terminal causes the terminal to perform the steps of any one of the methods described above.

In the embodiment of the invention, when the first vehicle-mounted terminal receives the basic safety BSM information of the second vehicle broadcasted by the second vehicle-mounted terminal, and when the preset field in the second BSM information is judged to identify the occurrence of the emergency of the second vehicle, corresponding measures are adopted for processing, so that the vehicle-mounted terminal can timely process dangerous situations, the running safety of the vehicle is improved, and the requirement on a network is further reduced because the information interaction and the processing can be carried out among the vehicles.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a data processing procedure according to embodiment 1 of the present invention;

fig. 2 is a schematic diagram of a BSM information structure according to embodiment 2 of the present invention;

FIG. 3 is a schematic diagram of a data processing system according to embodiment 4 of the present invention;

fig. 4 is a schematic diagram of a data processing procedure performed by an RSU according to embodiment 4 of the present invention;

FIG. 5 is a schematic diagram illustrating a data processing procedure performed by a V2X platform according to embodiment 4 of the present invention;

fig. 6 is a schematic diagram of a V2X platform data issuing process according to embodiment 4 of the present invention;

FIG. 7 is a schematic diagram of a data processing procedure according to embodiment 4 of the present invention;

FIG. 8 is a schematic diagram of a data processing apparatus according to embodiment 5 of the present invention;

fig. 9 is a schematic structural diagram of a vehicle-mounted terminal according to embodiment 6 of the present invention;

Fig. 10 is a schematic structural diagram of a vehicle-mounted terminal according to embodiment 7 of the present invention.

Detailed Description

The present invention will be described in further detail below with reference to the attached drawings, wherein it is apparent that the embodiments described are only some, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1:

fig. 1 is a schematic diagram of a data processing process according to an embodiment of the present invention, where the process includes the following steps:

s101: the first vehicle-mounted terminal receives the second vehicle basic safety BSM information broadcast by the second vehicle-mounted terminal and converts the information acquired by the first vehicle-mounted terminal into first BSM information broadcast.

The vehicle basic security information (Basic Security Message, BSM), which is the most widely used vehicle terminal application layer message, is used to exchange security state parameters between vehicle terminals. The vehicle-mounted terminal broadcasts the real-time state of the vehicle-mounted terminal to the surrounding vehicle-mounted terminals through the periodical broadcasting of the message so as to support a series of cooperative and safe applications. The BSM information is broadcast to the outside according to a preset period, the period can be flexibly set according to the user requirement, for example, the period can be 100ms,300ms, etc., and since the data volume of the BSM information broadcast by other surrounding vehicle-mounted terminals received by the vehicle-mounted terminal according to the period is huge, if the vehicle-mounted terminal processes all the data under dense conditions, the processing cannot be realized. However, the information contains a plurality of driving safety related data, so that reasonable classification is needed, necessary information is processed preferentially, and reasonable utilization of vehicle-mounted information processing resources is realized on the premise that driving safety is ensured.

Specifically, a sensor is installed on the first vehicle, the collected information is sent to the first vehicle-mounted terminal through the sensor, and the first vehicle-mounted terminal converts the collected information into first BSM information and broadcasts the first BSM information. And receives the second BSM information broadcast by the second vehicle-mounted terminal, specifically, in the embodiment of the present invention, the second BSM information received by the first vehicle-mounted terminal may be periodically broadcast by the second vehicle-mounted terminal, for example: the second in-vehicle terminal may broadcast the second BSM information with a periodicity of 100ms, 200ms, preferably 100ms. The period of broadcasting by each vehicle-mounted terminal may be the same or different, and preferably, the period of broadcasting by each vehicle-mounted terminal is the same.

S102: and judging whether a preset field in the second BSM information identifies the occurrence of an emergency of a second vehicle.

The BSM information is broadcast in a frame structure and is transmitted in the clear because it is in a broadcast form. The BSM information includes a preset field, where the preset field is a field indicating a special state of the vehicle in a security information set safe ext field of the vehicle-mounted terminal, and specifically, the safe ext field includes: the special state field of the vehicle is a VehicleEventFlags field in a safe Ext field, the special state of the vehicle can be information such as a vehicle ABS (anti-lock brake system) fault, a certain vehicle-mounted terminal brake, a special vehicle, tire burst, vehicle fault and the like, and can also comprise information such as a special event of the vehicle such as a vehicle speed being too slow, a line pressing, a temporary parking and the like.

In order to ensure that the internet of vehicles is safer and more efficient, in the embodiment of the present invention, whether the second vehicle has an emergency event may be determined by determining whether a preset field in the second BSM information identifies whether the second vehicle has an emergency event, specifically, by marking whether a field bit in the preset field is marked as "1".

And S103, if so, adopting corresponding measures to process according to the type of the emergency event and the position information of the second vehicle.

And if the preset field in the second BSM information is used for identifying the emergency of the second vehicle, corresponding measures are taken according to the type of the emergency and the position information of the second vehicle. In the embodiment of the invention, the type of the emergency event can be a fault affecting the running safety of the vehicle, such as an ABS system fault, tire burst and the like, or can be information of special events of the vehicle possibly affecting the running of other vehicles, such as information of over-slow speed, line pressing, temporary stopping and the like, and the type of the emergency event can be specifically set according to actual conditions. When the second vehicle is identified to have an emergency, because the second BSM information also includes location information of the second vehicle, the processing measure adopted by the second vehicle can be determined according to the emergency of the second vehicle and the location of the second vehicle.

Specifically, a method for determining self-processing measures according to the type of the emergency event and the position of the second vehicle belongs to the prior art, and in the embodiment of the present invention, the process is not repeated. For example: if the preset field in the second BSM information is information indicating that the emergency event of the second vehicle is an ABS system failure and the position information of the second vehicle indicates that the second vehicle is in front of the first vehicle, the first vehicle may take measures such as changing the driving route, so as to avoid the occurrence of accidents.

In the embodiment of the invention, when the first vehicle-mounted terminal receives the basic safety BSM information of the second vehicle broadcasted by the second vehicle-mounted terminal, and when judging that the second vehicle is in fault by the preset field identification in the second BSM information, the corresponding measures are adopted for processing, so that the vehicle-mounted terminal can timely process dangerous situations, the running safety of the vehicles is improved, and the requirements on a network are further reduced because the information interaction and the processing can be carried out among the vehicles.

Example 2:

in order to ensure timeliness of the vehicle-mounted terminal for acquiring high-risk information, on the basis of the above embodiment, in the embodiment of the present invention, the converting the acquired information into the first BSM information broadcast includes:

Judging whether the information is a preset emergency event or not;

The method comprises the steps that a first vehicle collects information through an installed sensor and sends the collected information to a first vehicle-mounted terminal, the first vehicle-mounted terminal converts the collected information into first BSM information, whether the collected information is a preset emergency event or not is judged, if the collected information is the preset emergency event, a corresponding field in preset fields in the first BSM information is set as information for identifying the emergency event, and the first BSM information is broadcasted; and if the acquired information is not the preset emergency event, setting a corresponding field in preset fields in the first BSM information as information for identifying the non-emergency event, and broadcasting the first BSM information. For example: the emergency event can be information such as an ABS system failure, a brake failure and other preset failures.

Specifically, in the embodiment of the present invention, fig. 2 is a schematic structural diagram of BSM information, where a flag field "safe ext" is an optional field, defined as a vehicle safety auxiliary information set, and includes, as a supplement to basic safety data, a vehicle special status (vehicle history) field, a vehicle history track (path prediction) field, and the like, and optional fields may also be a transmission (transmission), a speed (speed), a vehicle grade (vehicule), an angle (angle), a brake (brake), and the like, for example, where a corresponding field of a brake may be a wheel brake (wheelbrake), a traction force (track), a brake accelerator (brake boost), and the like.

The "VehicleEventFlags" field is a field for marking a series of special states of the vehicle, that is, corresponding fields in the preset field respectively indicate different faults, for example, information about whether an ABS system has faults, a tire burst, a brake failure, and the like can be indicated. Each field marks each type of emergency event through a corresponding identification, for example, the preset field is 8 bits in total, so that the field can be used for representing 8 types of emergency events, specifically, 1 can represent that an emergency event occurs, and 0 can represent that no emergency event occurs, so that once the corresponding field in a certain preset field is marked as '1', the fact that the vehicle has the corresponding type of emergency event is indicated, and the surrounding other vehicles can be influenced. Therefore, in the embodiment of the present invention, the corresponding field in the preset field is used as an important classification basis, if a certain bit of the corresponding field in the preset field is marked as 1, it indicates that the first vehicle state is abnormal, and the peripheral second vehicle terminals should be preferentially processed after receiving the BSM information.

Meanwhile, after the first vehicle-mounted terminal receives the BSM information of a large number of surrounding broadcasts, because the BSM information is in plaintext, whether the priority of the BSM information is high or not should be judged by the "veccleeventflags" field in the "safetyExt" field. Specifically, determining whether the priority of the BSM information is high may be based on whether any one of the preset fields is marked as 1, if so, determining that the BSM information is high, and based on the type of the emergency event corresponding to the field of the vehicle and the location information of the second vehicle, adopting corresponding measures to process the BSM information. Otherwise, the corresponding processing is not carried out according to the received BSM information. Thus, the data processing capacity of the vehicle-mounted terminal is greatly reduced.

According to the embodiment of the invention, whether the information is a preset emergency event is determined according to the information acquired by the sensor, the information is converted into the first BSM information according to the judging result, the corresponding field in the preset field is identified as the emergency event and the non-emergency event, and the first BSM information is broadcasted, so that the vehicle-mounted terminal which receives the BSM information can conveniently take corresponding processing measures, and the running safety of the vehicle is improved.

Example 3:

in order to obtain information more comprehensively and improve the driving safety of the vehicle, in the embodiment of the invention, the method further includes:

In order to comprehensively acquire information and improve the running safety of a vehicle, in the embodiment of the invention, a vehicle-mounted terminal broadcasts BSM information, whether other vehicle-mounted terminals or RSUs receive the BSM information, the RSU packages the BSM information after receiving the BSM information and reports the BSM information to a V2X platform, the V2X platform unpacks the obtained BSM information to generate traffic event information RSI and traffic participant state information RSM, and returns the RSI and the RSM to the RSU, so that the RSU broadcasts the RSI and the RSM to the vehicle-mounted terminal, and the vehicle-mounted terminal adjusts a running strategy according to RIS and the RSM, wherein the running strategy comprises running speed and running direction.

Specifically, the RSU is equipped with a PC5 direct communication device, so that BSM information broadcast by the vehicle-mounted terminal in the surrounding communication range can be collected by the RSU. The RSU gathers the information and packages the information, and periodically reports the information to the V2X platform, and in particular, in the embodiment of the present invention, it is considered that part of BSM information may be related to some security applications, and the period may not be too frequent, so that a period of 200ms may be used for reporting.

When the information is reported to the V2X platform, the RSU self ID information and the current time stamp are reported at the same time. And the V2X platform receives the summarized BSM information reported by the RSU, unpacks and analyzes the BSM information to generate RSI and RSM, returns the RSI and RSM to the RSU, and broadcasts the RSI and RSM to the vehicle-mounted terminal. The V2X platform unpacks the received BSM information to generate RSI and RSM; specifically, whether the RSI or the RSM is generated by using the BSM information may be generated according to a predetermined rule, specifically, if the BSM information is traffic event related information, the RSI is generated by using the BSM information; if the BSM information is information related to the real-time status of the traffic participant, the BSM information is generated into an RSM. The two kinds of information are significant for safe and efficient running of the vehicle, so that a large amount of information with single low value density is integrated through analysis of a V2X platform, and the RSM and the RSI are obtained.

The traffic event information RSI may be traffic event information as well as traffic sign information, wherein the traffic sign information mainly refers to GB 5768, including all sign contents therein. For some dynamic, temporary traffic events, such as "front accident", "front road ice" and so on. The traffic participant status information RSM represents real-time status information of traffic participants, such as: information of the road side unit RSU itself, surrounding vehicle terminals, non-motor vehicles, pedestrians, etc.

After the first vehicle-mounted terminal receives traffic event information RSI and traffic participant status information RSM broadcast by the road side unit RSU, the vehicle speed of the first vehicle-mounted terminal is adjusted according to the RSI and the RSM, so that driving safety is guaranteed.

In order to obtain information comprehensively, in the embodiment of the present invention, the method further includes:

receiving traffic light phase information SPAT broadcasted by a signal lamp;

and adjusting the driving strategy according to the SPAT.

In order to comprehensively acquire information, the first vehicle-mounted terminal receives traffic light phase information SPAT broadcasted by the signal lamp, and adjusts the vehicle speed according to the SPAT information, so that the driving safety is ensured. Specifically, when the signal lamp broadcasts the SPAT, a periodic broadcast mode is also adopted, for example: the period may be 500ms, 300ms, etc., and is preferably 500ms.

Due to the traffic event information RSI and the traffic participant status information RSM broadcast by the receiving road side unit RSU provided in the embodiment of the present invention; and the traffic light phase information SPAT broadcasted by the signal lamp is received according to the RSI and the RSM, and the traffic light phase information SPAT is adjusted according to the SPAT, so that the information is acquired more comprehensively, and the traffic safety is ensured.

Example 4:

FIG. 3 is a schematic structural diagram of a data processing system according to an embodiment of the present invention, where the data processing system includes at least two vehicle-mounted terminals;

each of the vehicle-mounted terminals 301 is configured to receive the second vehicle basic security BSM information broadcast by the other vehicle-mounted terminals, and convert the information collected by the vehicle-mounted terminals into a first BSM information broadcast; judging whether a preset field in the second BSM information identifies other vehicles to generate emergency events; and if so, adopting corresponding measures to process according to the type of the emergency event and the position information of the other vehicles.

Further, the system further comprises:

the signal lamp 302 is used for broadcasting traffic light phase information SPAT;

Further, the system further comprises:

a road side unit RSU303, configured to receive first BSM information broadcasted by the vehicle-mounted terminal; reporting the received BSM information to a V2X platform;

the V2X platform 304 is configured to receive BSM information reported by the RSU, determine traffic event information RSI and traffic participant status information RSM according to the BSM information, and send the RSI and the RSM to the RSU;

In the following, a detailed description of an embodiment of the present invention will be given, so that, in order to make it more clear that the RSU processes BSM information broadcast by the vehicle terminal, as shown in fig. 4:

s401: the vehicle-mounted terminal periodically broadcasts BSM information, and the signal lamp periodically reports SPAT information to the RSU.

According to the standard definition of the 3GPP protocol, the vehicle runs on the road, periodically broadcasts its own status information, i.e. BSM messages, with a broadcasting period of 100ms. In addition, the signal lamp also needs to periodically report the SPAT information to the RSU, and the reporting period can be 500ms. It should be noted that, in order to ensure the validity of the internet of vehicles message, the road side unit RSU may be deployed at the roadside, and may be combined with the signal machine at the position where the signal is located, that is, the information of the signal machine will be directly connected to the RSU from the signal machine, so as to ensure the timeliness and reliability of the information.

S402: the RSU receives the information and then carries out package;

the RSU is equipped with a PC5 direct communication device, so that BSM information broadcast by the vehicle-mounted terminal in the surrounding communication range can be collected by the RSU. The RSU packages the BSM information after integrating it, and adds the RSU's own ID information and the current time stamp. It should be noted that, because the RSU gathers the surrounding BSM information and the SPAT information, the frequency of packet generation may not be too frequent, and in the embodiment of the present invention, it is considered that part of the BSM information is related to the related security application, and thus, a period of 200ms is used for reporting.

S403: the RSU periodically reports the packaged information to the V2X platform;

And the RSU packages the collected information, periodically reports the information to the V2X platform and analyzes and processes the information after the V2X platform. The RSU and the V2X platform have two communication modes, namely wired connection, wherein the RSU in some areas can be provided with optical fibers connected with the V2X platform; and secondly, wireless connection, wherein the RSU reports data to the V2X platform through cellular mobile communication.

After the RSU reports the encapsulated information to the V2X platform, in order to make the information processing process of the V2X platform clearer, specifically as shown in fig. 5,

s501: the V2X platform receives the crossing message packet reported by the RSU, and unpacks and analyzes the crossing message packet;

and the V2X platform unpacks and analyzes the received RSU report message. In order to ensure the reliability of message transmission, the V2X platform feeds back a confirmation message to the RSU after receiving the RSU message, so as to avoid the phenomenon of message packet loss.

S502: the V2X platform analyzes the information and judges whether the information is RSI information;

the information package reported by the RSU basically takes BSM information and SPAT information as main, and although the single value density of these information is low, we will find a certain trend and feature by statistically analyzing BSM information of a region in a certain period of time, for example, the average speed of the region can be judged by the state information of the vehicle, so as to judge whether congestion occurs or not, and meanwhile, the cause of congestion can be judged by the speed change trend. These are well known in the art of intelligent transportation applications. However, the application is not promoted at present because a large amount of real-time vehicle-mounted terminals and road information cannot be accurately acquired.

In the embodiment of the present invention, we focus on analyzing the collected BSM information to generate RSI and RSM. In the V2X platform, besides BSM information and SPAT information, RSI and RSM are important two types of information, and the two types of information have important significance for safe and efficient running of the vehicle, so that a large amount of single low-value-density information is integrated through analysis of the V2X platform to obtain RSI and RSM information, and the RSI and RSM information are used by a vehicle-mounted terminal.

Because the RSI and RSM information contain different contents, the V2X platform needs to sort the analyzed result, determine whether it is RSI information, if so, execute S503, and if not, execute S504.

S503: generating an RSI message set and storing the RSI message set to a corresponding message queue;

after the V2X platform completes information analysis, comparing definition of RSI information to generate related RSI message set. Meanwhile, such information plays an important role in overall traffic optimization analysis, and therefore, data storage is required. It should be noted that, the information reported by the RSU will carry the ID information of the RSU, and the ID information may be matched with the MAP information MAP to find the location of the RSU, so the RSI information storage will be stored according to the RSU ID, and the data of the same RSU will be uniformly stored according to the time sequence and the message type.

S504, the V2X platform judges whether the information is RSM information;

after the V2X platform analyzes the RSU information, it is determined whether the result of the analysis is RSM, if so, S505 is executed, and if not, S506 is executed.

S505: generating an RSM message set and storing the RSM message set to a corresponding message queue;

after the V2X platform completes information analysis, a relevant RSM message set is generated. And meanwhile, the RSI message set is stored in a storage mode.

S506, discarding the information;

after all the information is analyzed by the V2X platform, RSI and RSM are generated, and for other redundant information, deletion and discarding are suggested to not occupy storage resources, and redundant analysis is not performed.

After generating the RSI message set and the RSM message set, the V2X platform issues to the RSU, a specific procedure, as shown in figure 6,

s601, a V2X platform generates an RSI message set and an RSM message set;

s602, transmitting information to an RSU which reports the information before;

and according to the ID information of the RSU reported before, the V2X platform sends the RSI message set, the RSM message and the information generated after analysis to the RSU corresponding to the information reporting. Because the analysis result is based on the basic information, the area affected by the generated result is mainly the area corresponding to the reported information.

S603, the RSU broadcasts information to the peripheral vehicle-mounted terminals;

In order to ensure that the analysis result can assist the vehicle in making decisions, the RSU will use a broadcast method, so as to not occupy excessive network resources as much as possible, but ensure that the vehicle can acquire enough information. Therefore, the RSU will broadcast information to surrounding vehicles by direct communication.

S604: after receiving the information, the vehicle-mounted terminal combines the information of the vehicle sensor to adjust the driving strategy, thereby ensuring safe and efficient driving;

and after acquiring the message issued by the RSU, the vehicle-mounted terminal performs unpacking analysis, and simultaneously combines the information of the own vehicle sensor to determine whether the surrounding situation has influence on the own vehicle. Therefore, the overall driving strategy is adjusted, the safe driving of the vehicle is ensured, and meanwhile, the overall traffic efficiency is improved.

In order to make the data processing clear, as shown in fig. 7, the vehicle-mounted terminal broadcasts BSM information to the surrounding, and the surrounding vehicles and the road side unit RSU can acquire the BSM information; meanwhile, equipment such as signal lamps, sensors, cameras and the like on the road side can send collected traffic light information to the outside, and non-motor vehicles such as roads, traffic information, pedestrians and the like can also broadcast own information. The vehicles can process emergency events preferentially through screening, and after the rest information is acquired by the RSU, the rest information is packaged and uploaded to a V2X platform disposed on the edge side for processing. After the platform processing is completed, the generated regional RSM information and RSI information are issued to the RSU, and the RSU broadcasts the information to surrounding vehicles. Finally, the real-time processing of the mass data of the Internet of vehicles is completed through the cooperative coordination of the vehicle-mounted terminal and the road side unit.

In order to ensure the system performance, the cost of the vehicle-mounted terminal is not increased, and the processing of the data of the Internet of vehicles is realized in the most economical, effective and feasible mode. At present, according to standard regulations, a vehicle runs on a road, a large amount of information sent by surrounding vehicle-mounted terminals and signal lamps is received every second, if the information is processed, the vehicle-mounted terminals can not meet the real-time requirement at all, and a large amount of resources are consumed. Meanwhile, most of the information is only the state information of surrounding vehicles, the available value of single information is low, and the safety influence on the running of the vehicles is avoided, so that the vehicle-mounted terminal is not required to analyze one by one, and the information is only required to be used as an information prompt. In case of emergency, the sensor information of the vehicle, and part of the emergency information in the BSM message will assist the vehicle in avoiding accidents. Other BSM information may not be of value alone, but after a period of time, the statistical analysis may reflect the characteristics of a certain traffic event, such as congestion caused by a traffic accident. Therefore, the embodiment of the invention is a proposal provided for processing a large amount of redundant BSM information, which not only ensures that the effective information is not ignored, but also reduces the complexity of vehicle information processing. Namely, the preset fields of BSM information are marked, the vehicle-mounted terminal is responsible for emergency information processing, other information is periodically summarized through the RSU and then reported to the V2X platform, valuable information is obtained through centralized analysis of the V2X platform, and the result is fed back to the vehicle-mounted terminal.

Based on the phenomenon that mass data are generated by the communication of the current V2X platform, part of high-priority BSM information is directly analyzed through a vehicle-mounted terminal in order to ensure that vehicles can acquire accurate and effective information and safe and efficient running, and meanwhile, the BSM information with low single value and potential significance is processed through an RSU, comprehensive analysis is completed by means of the strong processing capacity of the V2X platform, RSI/RSM closely related to the running of the vehicles is generated, and then the RSI/RSM is broadcast to surrounding vehicles through the RSU. Therefore, resources input in the process of processing surrounding mass of the vehicle are greatly reduced, and meanwhile, the acquisition of key information can be ensured. Meanwhile, in the embodiment of the invention, the information importance is distinguished through the existing BSM message 'safe Ext' field, so that the information screening can be finished by utilizing the characteristics of the original system, and the data processing pressure of the vehicle-mounted terminal is greatly reduced. Furthermore, the V2X platform can be deployed at the network edge according to the requirements of service performance and combined with the mobile edge computing MEC, so that the time delay caused by transmission is reduced. In addition, the RSU acquires/transmits data in a broadcasting mode, so that the RSU does not occupy air interface resources and reduces network pressure. The analysis result of the V2X platform on the regional data is uniformly transmitted to a certain region, and the repeated occupation of network resources is greatly reduced without repeated single transmission to a certain vehicle-mounted terminal. Finally, the data processing pressure of the vehicle terminal is reduced, the network resource occupancy rate is reduced, the comprehensiveness of the vehicle to information acquisition is guaranteed, and the safe, reliable and efficient application effect of the Internet of vehicles is achieved.

Example 5:

fig. 8 is a schematic structural diagram of a data processing apparatus according to an embodiment of the present invention, where the apparatus includes:

a conversion module 801, configured to receive second vehicle basic security BSM information broadcasted by a second vehicle terminal, and convert information collected by the second vehicle basic security BSM information into first BSM information broadcast;

a judging module 802, configured to judge whether a preset field in the second BSM information identifies that the second vehicle has an emergency;

and a processing module 803, configured to, if so, process by adopting corresponding measures according to the type of the emergency event and the location information of the second vehicle.

Further, the conversion module 801 is specifically configured to determine whether the information is a preset emergency event; if yes, converting the information into first BSM information, setting a corresponding field in preset fields in the first BSM information as information for identifying an emergency, and broadcasting the first BSM information; if not, converting the information into first BSM information, setting a corresponding field in preset fields in the first BSM information as information for identifying non-emergency events, and broadcasting the first BSM information.

Further, the apparatus further comprises: a first adjustment module 804, configured to receive traffic event information RSI and traffic participant status information RSM broadcast by a road side unit RSU; and adjusting the driving strategy of the driver according to the RSI and the RSM.

Further, the apparatus further comprises: the second adjusting module 805 is configured to receive traffic light phase information SPAT broadcasted by the signal lamp; and adjusting the driving strategy according to the SPAT.

Example 6:

fig. 9 is a schematic structural diagram of a vehicle-mounted terminal according to an embodiment of the present invention, including: a processor 901 and a memory 902, in which a computer program is stored, the program being executed by the processor;

The processor may be a general-purpose processor, including a central processing unit, a network processor (Network Processor, NP), etc.; but also digital signal processors (Digital Signal Processing, DSP), application specific integrated circuits, field programmable gate arrays or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.

Example 7:

on the basis of the foregoing embodiments, fig. 10 is a schematic structural diagram of a vehicle-mounted terminal according to an embodiment of the present invention, including: processor 1001, communication interface 1002, memory 1003 and communication bus 1004, wherein the processor, communication interface, memory accomplish the mutual communication through the communication bus;

the memory has stored therein a computer program which, when executed by the processor, causes the processor to perform the steps of:

Further, judging whether the information is a preset emergency event or not;

Further, receiving traffic event information RSI and traffic participant status information RSM broadcast by the road side unit RSU;

Further, receiving traffic light phase information SPAT broadcasted by the signal lamp;

and adjusting the driving strategy according to the SPAT.

The communication bus mentioned by the in-vehicle terminal in each of the above embodiments may be a peripheral component interconnect standard (Peripheral Component Interconnect, PCI) bus, or an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus, or the like. The communication bus may be classified as an address bus, a data bus, a control bus, or the like. For ease of illustration, the figures are shown with only one bold line, but not with only one bus or one type of bus.

And the communication interface is used for communication between the vehicle-mounted terminal and other equipment.

The Memory may include random access Memory (Random Access Memory, RAM) or may include Non-Volatile Memory (NVM), such as at least one disk Memory. Optionally, the memory may also be at least one memory device located remotely from the aforementioned processor.

Example 8:

the embodiment of the invention discloses a computer readable storage medium storing a computer program executable by a terminal, which when run on the terminal causes the terminal to perform the steps of:

Further, judging whether the information is a preset emergency event or not;

and adjusting the driving strategy according to the SPAT.

The computer readable storage medium in the above embodiments may be any available medium or data storage device that can be accessed by a processor in a vehicle-mounted terminal, including but not limited to magnetic memories such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO) and the like, optical memories such as CD, DVD, BD, HVD and the like, and semiconductor memories such as ROM, EPROM, EEPROM, nonvolatile memories (NAND FLASH), solid State Disks (SSD) and the like.

In summary, the embodiment of the invention provides a data processing method, device, system, vehicle-mounted terminal and medium, and the method includes: the first vehicle-mounted terminal receives second vehicle basic safety BSM information broadcast by the second vehicle-mounted terminal and converts the information acquired by the first vehicle-mounted terminal into first BSM information broadcast; judging whether a preset field in the second BSM information identifies a second vehicle to generate an emergency; and if so, adopting corresponding measures to process according to the type of the emergency event and the position information of the second vehicle.

For system/device embodiments, the description is relatively simple as it is substantially similar to method embodiments, with reference to the description of method embodiments in part.

It should be noted that in this document relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely application embodiment, or an embodiment combining application and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. A method of data processing, the method comprising:

if yes, adopting corresponding measures to process according to the type of the emergency event and the position information of the second vehicle;

wherein the method further comprises:

receiving traffic event information (RSI) and traffic participant status information (RSM) broadcast by a Road Side Unit (RSU), wherein the RSI and the RSM are determined by a V2X platform according to the received BSM information reported by the RSU and are sent to the RSU;

2. The method of claim 1, wherein converting the self-collected information into the first BSM information broadcast comprises:

Judging whether the information is a preset emergency event or not;

3. The method of claim 2, wherein the preset field is a field indicating a special state of the vehicle in a vehicle-mounted terminal auxiliary safety information set safetyExt field.

4. The method of claim 1, wherein the method further comprises:

receiving traffic light phase information SPAT broadcasted by a signal lamp;

and adjusting the driving strategy according to the SPAT.

5. A data processing system, the system comprising at least two vehicle terminals:

each vehicle-mounted terminal is used for receiving the basic safety BSM information of the second vehicle broadcasted by other vehicle-mounted terminals and converting the information acquired by the vehicle-mounted terminals into the first BSM information broadcasted; judging whether a preset field in the second BSM information identifies other vehicles to generate emergency events; if yes, adopting corresponding measures to process according to the type of the emergency event and the position information of the other vehicles;

Wherein the system further comprises:

6. The system of claim 5, wherein the system further comprises:

the signal lamp is used for broadcasting traffic light phase information SPAT;

7. The system of claim 5, wherein the V2X platform is further configured to delete redundant BSM information that does not generate RSI and RSM.

8. The system of claim 5, wherein the vehicle-mounted terminal is specifically configured to determine whether the information is a preset emergency event; if yes, converting the information into first BSM information, setting a corresponding field in preset fields in the first BSM information as information for identifying an emergency, and broadcasting the first BSM information; if not, converting the information into first BSM information, setting a corresponding field in preset fields in the first BSM information as information for identifying non-emergency events, and broadcasting the first BSM information.

9. A data processing apparatus, the apparatus comprising:

the processing module is used for adopting corresponding measures to process according to the type of the emergency event and the position information of the second vehicle if the emergency event is detected;

wherein the apparatus further comprises: the system comprises a first adjustment module, a second adjustment module and a third adjustment module, wherein the first adjustment module is used for receiving traffic event information (RSI) and traffic participant status information (RSM) broadcast by a Road Side Unit (RSU), and the RSI and the RSM are both determined by a V2X platform according to BSM information reported by the received RSU; and adjusting the driving strategy of the driver according to the RSI and the RSM.

10. A vehicle-mounted terminal, characterized by comprising: a processor and a memory, the memory storing a computer program, the program being executed by the processor;

the processor is used for receiving the basic safety BSM information of the second vehicle broadcasted by the second vehicle-mounted terminal and converting the information acquired by the processor into the first BSM information broadcasted; judging whether a preset field in the second BSM information identifies a second vehicle to generate an emergency; if yes, adopting corresponding measures to process according to the type of the emergency event and the position information of the second vehicle;

The processor is further configured to receive traffic event information RSI and traffic participant status information RSM broadcast by a road side unit RSU, where the RSI and the RSM are both determined by the V2X platform according to BSM information reported by the received RSU; and adjusting the driving strategy of the driver according to the RSI and the RSM.

11. The vehicle-mounted terminal according to claim 10, wherein the processor is specifically configured to determine whether the information is a preset emergency event; if yes, converting the information into first BSM information, setting a corresponding field in preset fields in the first BSM information as information for identifying an emergency, and broadcasting the first BSM information; if not, converting the information into first BSM information, setting a corresponding field in preset fields in the first BSM information as information for identifying non-emergency events, and broadcasting the first BSM information.

12. The vehicle-mounted terminal of claim 10, wherein the processor is further configured to receive traffic light phase information SPAT broadcast by a signal light; and adjusting the driving strategy according to the SPAT.

13. A vehicle-mounted terminal, characterized by comprising: the device comprises a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory are communicated with each other through the communication bus;

The memory has stored therein a computer program which, when executed by the processor, causes the processor to perform the steps of the method of any of claims 1-4.

14. A computer readable storage medium, characterized in that it stores a computer program executable by a terminal, which when run on the terminal causes the terminal to perform the steps of the method according to any of claims 1-4.