CN115273271A - System and method for collecting vehicle data based on vehicle entertainment host - Google Patents
System and method for collecting vehicle data based on vehicle entertainment host Download PDFInfo
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- CN115273271A CN115273271A CN202210735753.1A CN202210735753A CN115273271A CN 115273271 A CN115273271 A CN 115273271A CN 202210735753 A CN202210735753 A CN 202210735753A CN 115273271 A CN115273271 A CN 115273271A
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- G—PHYSICS
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- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
- G07C5/0808—Diagnosing performance data
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/008—Registering or indicating the working of vehicles communicating information to a remotely located station
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
- G07C5/0841—Registering performance data
- G07C5/085—Registering performance data using electronic data carriers
- G07C5/0866—Registering performance data using electronic data carriers the electronic data carrier being a digital video recorder in combination with video camera
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40143—Bus networks involving priority mechanisms
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a system and a method for acquiring vehicle data based on a vehicle entertainment host, wherein the system comprises a cloud server and a vehicle end in communication connection with the cloud server, the vehicle end comprises the vehicle entertainment host, a gateway and an automatic driving controller, and the vehicle entertainment host and the gateway, and the gateway and the automatic driving controller are in communication connection respectively; the automatic driving controller is used for storing the file information about the monitored fault event as a data file; the vehicle entertainment host is integrated with a 4G module and used for sending the received fault event information to the cloud server, analyzing a data acquisition instruction sent by the cloud server, converting the data acquisition instruction into a task and bringing the task into task management; and the cloud server is used for issuing a data acquisition instruction to the vehicle entertainment host according to the priority of the fault event information. The invention solves the problems of single type and small data volume of the existing data acquisition and realizes the remote automatic acquisition of the data acquisition of the automatic driving controller.
Description
Technical Field
The invention relates to the technical field of automatic driving of vehicles, in particular to a system and a method for acquiring vehicle data based on a vehicle entertainment host.
Background
With the popularization of automatic driving in various manufacturers, various new technologies such as driving assistance, automatic cruising, remote parking and the like continuously appear, and the quitting and artificial takeover of automatic driving are important bases for carrying out responsibility judgment on related accidents. However, when automobile manufacturers deal with the after-sale problem of vehicles at present, a commonly used troubleshooting means is a diagnostic instrument or a mode of reading fault codes through remote diagnosis, the mode lacks the context environment of the fault occurrence time, only some conventional electrical faults can be identified and processed, and for software faults in the current automatic driving scene, the current mode for dealing with the after-sale problem is limited due to the fact that the context of the fault scene is lacked and the software faults cannot be processed, so that a vehicle data acquisition method for acquiring the running software logs, the road conditions, the vehicle driving data and the like of the automatic driving relevant controller and acquiring the content forms including videos, pictures, log logs and bus signals is urgently needed.
For example, the invention patent with the publication number CN113285861A discloses a vehicle data acquisition method based on an intelligent central gateway, which includes that an intelligent central gateway GW periodically monitors CAN/LIN bus messages, when an event needing vehicle data acquisition occurs on a CAN/LIN bus (for example, a vehicle fails), message data in t1 seconds before and t2 seconds after an event trigger time (t 1+ t2 seconds in total) is immediately stored on all CAN/LIN buses of the vehicle, and the message data is sent to a vehicle-mounted internet access terminal TBOX through an Ethernet bus after being packaged, and the vehicle-mounted internet access terminal TBOX is uploaded to a cloud server through a 4G network so as to support a host plant to analyze vehicle data online or downloaded. Although this patent can take place when the vehicle needs carry out vehicle data acquisition's incident (if the vehicle breaks down), the host computer factory can directly obtain the vehicle data that the incident triggered moment at the high in the clouds server and carry out the analysis, and need not to appoint the engineer and carry professional instrument and go to the on-the-spot and read, very big promotion vehicle data acquisition's real-time and convenience, reduce the host computer factory to the puzzlement that "sporadic" incident vehicle data is difficult to obtain.
However, the patent only collects communication data of a CAN/LIN bus of a vehicle, then the communication data are packaged into a protocol inside a host factory through Ethernet and transmitted to a central gateway, and then the bus data are transmitted to a cloud server for storage. Because the CAN bus bears the weight of the semaphore and has limitation, the current automatic driving uses the road image recognition, key images and videos cannot be collected through the CAN, and operation logs in the controller cannot be collected. Therefore, the patent has the problems of single acquisition type and small acquired data quantity, cannot complete data acquisition related to the field of automatic driving, and cannot achieve the purpose of helping software developers and after-sales personnel to perform responsibility judgment and software fault handling.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problems to be solved by the invention are as follows: how to provide a system and a method for collecting vehicle data based on a vehicle entertainment host, which solve the problems that the existing data collection type is single, the data volume is small, and the data collection of an automatic driving controller cannot be completed.
In order to solve the technical problems, the invention adopts the following technical scheme:
a system for collecting vehicle data based on a vehicle entertainment host comprises a cloud server and a vehicle end in communication connection with the cloud server, wherein the vehicle end comprises the vehicle entertainment host, a gateway and an automatic driving controller, and the vehicle entertainment host and the gateway, and the gateway and the automatic driving controller are in communication connection respectively;
the automatic driving controller is used for storing the monitored file information of the fault event as a data file and sending the fault event information to the vehicle entertainment host through the gateway;
the vehicle entertainment host is integrated with a 4G module and used for sending the received fault event information to the cloud server, analyzing a data acquisition command sent by the cloud server, converting the data acquisition command into a task and bringing the task into task management of the vehicle entertainment host; after the vehicle entertainment host machine confirms the information of the data file according to the task and the automatic driving controller, reading the data file and sending the data file to the cloud server;
the gateway is used for routing and forwarding data between the automatic driving controller and the vehicle entertainment host;
and the cloud server is used for analyzing the fault event information, issuing a data acquisition instruction to the vehicle entertainment host according to the priority of the fault event information, performing data analysis on the received data file, and providing a data file downloading and analysis page to an analyst.
Furthermore, the vehicle entertainment host and the gateway are in communication connection through a CAN bus and an Ethernet, and the gateway and the automatic driving controller are in communication connection through the CAN bus and the Ethernet; the CAN bus is used for transmitting fault event information, and the Ethernet (Ethernet) is used for transmitting data files.
Further, the data file comprises program running logs, road environment photos, road environment videos and CAN bus data.
Further, the priority comprises a first-level priority when the vehicle collides, a second-level priority when the software subfunction is abnormally operated and a third-level priority when the vehicle operation state is abnormally operated; and the primary priority or the secondary priority automatically issues a data acquisition instruction to the vehicle entertainment host after the cloud server receives the fault event information.
The invention also provides a method for acquiring vehicle data based on the vehicle entertainment host, which comprises the following steps:
s1, monitoring the running state of an automatic driving controller;
s2, when a fault event of the automatic driving controller is monitored, storing upper and lower file information of the fault event as a data file, sending the fault event information to a vehicle entertainment host through a CAN (controller area network) bus, uploading the fault event information to a cloud server by the vehicle entertainment host, and updating a vehicle event analysis page by the cloud server; the cloud server determines whether to issue a data acquisition instruction to the vehicle entertainment host according to the priority of the fault event information, and if so, executes the step S3;
and S3, the vehicle entertainment host reads the data file through Ethernet according to the data acquisition instruction and feeds the data file back to the cloud server.
Further, in step S2, the priorities include a first-level priority when the vehicle collides, a second-level priority when the software subfunction is abnormally operated, and a third-level priority when the vehicle operation state is abnormally operated; the first-level priority or the second-level priority automatically issues a data acquisition instruction to the vehicle entertainment host after the cloud server receives the fault event information.
Further, in step S3, the step of reading the data file by the vehicle entertainment host according to the data acquisition instruction and feeding back the data file to the cloud server includes:
s41, analyzing the data acquisition command by the vehicle entertainment host, converting the data acquisition command into a task, and incorporating the task into task management;
s42, the vehicle entertainment host schedules and executes tasks in task management, whether the tasks are the tasks of the automatic driving controller is judged, if yes, the step S43 is executed, and otherwise, the vehicle entertainment host executes the tasks by itself;
s43, judging whether a task execution condition is met, if so, executing a step S44, otherwise, incorporating the task execution condition into failed task management;
s44, a TCP channel is established between the vehicle entertainment host and the automatic driving controller, and data file information is interacted;
s45, judging whether the automatic driving controller has a required data file, if so, executing a step S46, otherwise, exiting the task;
s46, the vehicle entertainment host reads the data file of the target controller through the Ethernet;
and S47, the vehicle entertainment host judges whether the reading of the data file is finished or not, if so, the data file is uploaded to a cloud server, and otherwise, the data file is brought into the management of the failed task of the vehicle entertainment host.
Further, the automatic driving controller comprises an ADAS controller and an APA controller;
the ADAS controller comprises a monitoring module and a control module, wherein the monitoring module is used for monitoring fault events when the driving assistance system operates abnormally; (Advanced Driver Assistance System, advanced driving Assistance System), including ACC automatic cruise System, AEB automatic braking System, LDW lane departure early warning System and BSD blind area monitoring System;
the APA controller comprises a monitoring module used for monitoring fault events when the automatic parking auxiliary system operates abnormally; the input of the APA controller is connected with the output of the camera and used for obtaining the road environment picture and the road environment video when the vehicle is parked automatically.
Further, the data file comprises a program running log, a road environment photo, a road environment video and CAN bus data.
Compared with the prior art, the invention has the beneficial effects that:
1. when the automatic driving controller monitors a fault event, the context information of the fault event is stored as a data file, the data file is sent to the vehicle entertainment host through the CAN bus, the vehicle entertainment host uploads the fault event information to the cloud server through the 4G module, the cloud server sends a data acquisition instruction to the vehicle entertainment host according to the priority of the fault event information after receiving the fault event information, the vehicle entertainment host and the automatic driving controller perform interactive confirmation of the data file information, the data file is acquired through Ethernet (Ethernet), the data file is uploaded to the cloud server, the cloud server displays the acquired file in a corresponding page, performs data analysis on the received data file, and provides a data file downloading and analysis page for an analyst, so that the remote automatic acquisition of the operation data acquisition related to the accident or fault of the automatic driving controller is realized, the acquisition content is diversified, and the data acquisition amount is huge.
2. The vehicle entertainment host computer is used for data acquisition, so that the data acquisition diversification and the data volume maximization are realized, meanwhile, the host computer is high in configuration and good in performance, so that the data acquisition efficiency is high, and the device cost can be saved compared with the traditional scheme based on other devices such as a Tbox.
Drawings
For a better understanding of the objects, solutions and advantages of the present invention, reference will now be made in detail to the present invention, which is illustrated in the accompanying drawings, in which:
FIG. 1 is a schematic diagram of the architecture of a system for collecting vehicle data based on a vehicle entertainment host according to the present invention;
FIG. 2 is a flow chart of the uploading of fault event information in accordance with the present invention;
FIG. 3 is a flow chart of the present invention for uploading data files by the vehicle entertainment host;
FIG. 4 is a flow chart of a manual data file of the present invention;
FIG. 5 is a schematic diagram of the task management of the vehicle entertainment host of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the embodiment provides a system for acquiring vehicle data based on a vehicle entertainment host, which includes a cloud server, and a vehicle end in communication connection with the cloud server, where the vehicle end includes a vehicle entertainment host (vehicle machine), a gateway, and an automatic driving controller, and the vehicle entertainment host and the gateway, and the gateway and the automatic driving controller are in communication connection respectively;
the automatic driving controller is used for storing the monitored file information of the fault event as a data file and sending the fault event information to the vehicle entertainment host through the gateway;
the vehicle entertainment host is integrated with a 4G module and used for sending the received fault event information to the cloud server, analyzing a data acquisition instruction sent by the cloud server, converting the data acquisition instruction into a task and bringing the task into task management of the vehicle entertainment host; after the vehicle entertainment host machine confirms the information of the data file according to the task and the automatic driving controller, reading the data file and sending the data file to the cloud server; the 4G module can access the Internet and can access private and public cloud servers.
The gateway is used for routing and forwarding data between the automatic driving controller and the vehicle entertainment host;
and the cloud server is used for analyzing the fault event information, issuing a data acquisition instruction to the vehicle entertainment host according to the priority of the fault event information, performing data analysis on the received data file, and providing a data file downloading and analysis page for an analyst.
When the automatic driving controller monitors a fault event, naming the abnormal record file according to the ID of the fault event, storing the context information of the fault event as a data file, then sending the data file to the vehicle entertainment host through the CAN bus, uploading the fault event information to the cloud server through the 4G module by the vehicle entertainment host, sending a data acquisition command to the vehicle entertainment host according to the priority of the fault event information after the cloud server receives the fault event information, interacting the data file information to the controller after the vehicle entertainment host analyzes the command, uploading the data file to the cloud server after the vehicle entertainment host acquires the data file through Ethernet, displaying the data file in a corresponding page by the cloud server after acquiring the file, performing data analysis on the received data file, downloading and analyzing the data file to an analyst, thereby realizing the operation data acquisition of the related accident or fault of the automatic driving controller, diversifying the acquisition content and greatly increasing the data acquisition amount. Meanwhile, the purposes of helping software developers and after-sales personnel to carry out responsibility judgment and software fault treatment can be achieved according to the data file.
When the vehicle entertainment system is implemented specifically, the vehicle entertainment host and the gateway are in communication connection through a CAN bus and an Ethernet, and the gateway and the automatic driving controller are in communication connection through the CAN bus and the Ethernet; CAN bus communication has reliable and stable communication characteristics, while Ethernet (Ethernet) has high bandwidth characteristics. The CAN bus is thus used for transmitting fault event information and Ethernet (Ethernet) is used for transmitting data files.
In specific implementation, the automatic driving controller comprises an ADAS controller and an APA controller;
the ADAS controller (Advanced Driver Assistance System) includes a first monitoring module for monitoring a fault event when the driving Assistance System is operating abnormally. The abnormal recording file is named according to the fault event ID (namely the event ID), and the recorded data file comprises pictures, videos and the like. The ADAS controller comprises an ACC automatic cruise system, an AEB automatic braking system, an LDW lane departure early warning system, a BSD blind area monitoring system and the like.
The APA controller (Auto park Assist System) comprises a second monitoring module, a second monitoring module and a second monitoring module, wherein the second monitoring module is used for monitoring fault events when the Auto park Assist System operates abnormally; the input of the APA controller is connected with the output of the camera and used for obtaining the road environment picture and the road environment video when the vehicle is parked automatically.
In specific implementation, the data file comprises a program running log, a road environment photo, a road environment video, CAN bus data and the like.
In specific implementation, the priority comprises a first-level priority when the vehicle collides, a second-level priority when the software subfunction is abnormally operated and a third-level priority when the vehicle operation state is abnormally operated; and the primary priority or the secondary priority automatically issues a data acquisition instruction to the vehicle entertainment host after the cloud server receives the fault event information. The command is sent to the vehicle entertainment host, and the vehicle entertainment host is the only node outside the vehicle in the system. The vehicle entertainment host acquires the information and then requests the automatic driving controller to acquire a fault data file.
The specific data acquisition instruction issued by the cloud server comprises the following steps: 1. a controller ID;2. acquisition type (log or event type); 3. the type of data collected (picture, video or CAN bus data); 4. a fault event type; 5. the time of occurrence of the event; 6. a message ID, etc.
The invention also provides a method for acquiring vehicle data based on the vehicle entertainment host, which comprises the following steps:
s1, monitoring the running state of an automatic driving controller;
s2, when a fault event of the automatic driving controller is monitored, storing upper and lower file information of the fault event as a data file, sending the fault event information to a vehicle entertainment host through a CAN (controller area network) bus, uploading the fault event information to a cloud server through a 4G module by the vehicle entertainment host, and updating a vehicle event analysis page by the cloud server; the cloud server determines whether to issue a data acquisition instruction to the vehicle entertainment host according to the priority of the fault event information, and if so, executes the step S3;
and S3, the vehicle entertainment host reads the data file through Ethernet according to the data acquisition instruction and feeds the data file back to the cloud server.
When the automatic driving controller monitors a fault event, the context information of the fault event is stored as a data file, the data file is sent to the vehicle entertainment host through the CAN bus, the vehicle entertainment host uploads the fault event information to the cloud server through the 4G module, the cloud server sends a data acquisition instruction to the vehicle entertainment host according to the priority of the fault event information after receiving the fault event information, the vehicle entertainment host and the automatic driving controller perform interactive confirmation of the data file information, the data file is acquired through Ethernet (Ethernet), the data file is uploaded to the cloud server, the cloud server displays the acquired file in a corresponding page, performs data analysis on the received data file, and provides a data file downloading and analysis page for an analyst, so that the remote automatic acquisition of the operation data acquisition related to the accident or fault of the automatic driving controller is realized, the acquisition content is diversified, and the data acquisition amount is huge.
The specific uploading process of the fault event information in the step S2 is shown in fig. 2, the automatic driving controller includes a monitoring module for monitoring abnormal operation of software states, and can capture abnormal states in the use process of the automatic driving function, when a fault event is monitored, the abnormal recording file is named according to the fault event ID, and the up-and-down file information of the fault event is stored in the automatic driving controller in a data file form, where the recorded data file includes pictures, videos, and the like. And simultaneously capturing the CAN data of the first T1 second and the last T2 second of the abnormal state.
After the vehicle entertainment host receives the fault event information through the CAN bus, the fault event information is uploaded to the cloud server through the 4G module, the cloud server receives and records the fault event information, and meanwhile, the cloud server updates a vehicle event analysis page so that an analyst CAN issue a data acquisition instruction through the analysis page and manually acquire a data file stored by the automatic driving controller. The cloud server judges whether to issue a data acquisition instruction to the vehicle entertainment host according to the priority of the fault event ID of the received fault event information, wherein the judgment strategy is that the cloud server management background can be flexibly configured, so that more vehicle end data can be reliably acquired in the early debugging stage. The priority in the embodiment comprises a first-level priority when the vehicle collides, a second-level priority when the software subfunction is abnormally operated and a third-level priority when the vehicle operation state is abnormally operated; the first-level priority or the second-level priority automatically issues a data acquisition instruction to the vehicle entertainment host after the cloud server receives the fault event information, and the vehicle entertainment host requests the automatic driving controller to acquire a data file after receiving the instruction.
Referring to fig. 3, in step S3, the step of reading the data file by the vehicle entertainment host according to the data acquisition instruction and feeding back the data file to the cloud server includes:
s31, the vehicle entertainment host analyzes the data acquisition command, converts the data acquisition command into a task and brings the task into task management;
s32, the vehicle entertainment host schedules and executes tasks in task management, whether the tasks are the tasks of the automatic driving controller is judged, if yes, the step S43 is executed, and otherwise, the vehicle entertainment host executes the tasks by itself;
s33, judging whether a task execution condition is met, if so, executing the step S44, otherwise, performing the step S44 in the failed task management; when the vehicle end is in an OFF gear and the load of a CPU in the vehicle machine is too high, the task cannot be executed, and the failed task can be transferred to a failed task queue.
S34, a TCP channel is established between the vehicle entertainment host and the automatic driving controller, and data file information is interacted;
s35, judging whether the automatic driving controller has a required data file, if so, executing a step S46, otherwise, exiting the task;
s36, the vehicle entertainment host reads the data file of the automatic driving controller through Ethernet;
and S37, the vehicle entertainment host judges whether the reading of the data file is finished or not, if so, the data file is uploaded to a cloud server, and otherwise, the data file is brought into the management of the failed task of the vehicle entertainment host.
In the running process of the real vehicle, considering from the occurrence frequency of fault events and the scene that the acquired vehicle-side data file is too large, time is consumed in some cases, and a data acquisition command issued by the cloud server needs to be cached, so the command is regarded as a task in the vehicle entertainment host, and the vehicle entertainment host analyzes the command issued by the cloud server, converts the command into the task, brings the task into task management and is scheduled and executed by the vehicle entertainment host.
The vehicle entertainment host and the automatic driving controller establish a TCP channel, interact data file information, send event ID, occurrence time and type of a data file required to be acquired, after the controller acquires a request, whether the data requested by the vehicle machine is included is searched according to the data in the request, if yes, the searched file name and path are returned to the vehicle machine, and if not, the vehicle machine result is informed. And reading the data file from the controller to the vehicle entertainment host by using a TFTP (simple file transfer protocol) through the Ethernet, wherein if the reading fails in the reading process, the attempt is carried out for 3 times, and if the reading fails for three times, the data file is brought into the task management of the vehicle entertainment host failure. The cloud server can store files by using a network disk service of a third party, when the vehicle entertainment host uploads the files, the addresses of the data files are uploaded firstly, then the files are actually uploaded to the network disk, finally the successful uploading result is informed to the private cloud server, and after the private cloud server acquires the execution result, the result is updated to the database, so that the events on the page and the corresponding data acquisition state can be updated to be 'finished'.
The specific data acquisition instruction issued by the cloud server comprises the following steps: 1. a controller ID;2. acquisition type (log or event type); 3. the type of data collected (picture, video or CAN bus data); 4. a fault event type; 5. the time of occurrence of the event; 6. a message ID, etc.
In specific implementation, the automatic driving controller comprises an ADAS controller and an APA controller;
the ADAS controller comprises a first monitoring module used for monitoring fault events when the driving assistance system is abnormally operated. The abnormal recording file is named according to the fault event ID (namely the event ID), and the recorded data file comprises pictures, videos and the like. The ADAS controller comprises an ACC automatic cruise system, an AEB automatic braking system, an LDW lane departure early warning system, a BSD blind area monitoring system and the like.
The APA controller comprises a second monitoring module used for monitoring fault events when the automatic parking auxiliary system operates abnormally; the input of the APA controller is connected with the output of the camera and is used for acquiring the road environment picture and the road environment video when the vehicle is parked automatically.
In specific implementation, the data file comprises a program running log, a road environment photo, a road environment video and CAN bus data.
Referring to fig. 4, in this embodiment, an analyst manually obtains a data file through a vehicle event analysis page, which specifically includes:
an analyst triggers and acquires a data file of a fault event through a vehicle event analysis page of the cloud server;
the cloud server issues a data acquisition command to a vehicle entertainment host of a corresponding vehicle end;
and (4) executing the step S3 after the vehicle entertainment host receives the data acquisition command.
When an analyst clicks a page to obtain a fault data file, if the file is not uploaded to the server, the cloud server issues an instruction to the vehicle-end entertainment host, the vehicle machine analyzes the instruction and converts the instruction into a task, the target controller code can be identified during task execution, if the target controller code is not the vehicle machine, the vehicle machine performs file information interaction on the controller through Ethernet, whether the file corresponding to the fault point time exists or not is determined, if the target controller code does not belong to the vehicle machine, the vehicle machine reads the file from the target controller, and then the data file is reported to the cloud.
Referring to fig. 5, after the vehicle entertainment host acquires the cloud server instruction, the instruction is converted into a task and stored in a conventional queue (i.e., incorporated into task management), and when the task fails in the process of downloading or uploading a file from a controller to the cloud server, and when the current conditions of the vehicle are not met, the task fails (the vehicle gear, the electric quantity and the CPU are not met), the task that fails is also stored in a failure queue. When the vehicle gear is recovered to be an ON gear next time or the CPU is recovered to a normal level from overload, the failed task ID is reported to the cloud server or the private cloud server, and the private cloud server acquires the context information of the corresponding fault event information according to the task ID and re-issues an instruction to the terminal to complete re-execution of the failed task and acquire the data file of the fault event information.
Finally, it is noted that the above embodiments are merely intended to illustrate the technical solution of the present invention and not to limit the same, and although the present invention has been described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein. All obvious changes which are introduced by the technical solution of the invention are still within the protective scope of the invention.
Claims (10)
1. A system for acquiring vehicle data based on a vehicle entertainment host is characterized by comprising a cloud server and a vehicle end in communication connection with the cloud server, wherein the vehicle end comprises the vehicle entertainment host, a gateway and an automatic driving controller, and the vehicle entertainment host and the gateway and the automatic driving controller are in communication connection respectively;
the automatic driving controller is used for storing the monitored file information of the fault event as a data file and sending the fault event information to the vehicle entertainment host through the gateway;
the vehicle entertainment host is integrated with a 4G module and used for sending the received fault event information to the cloud server, analyzing a data acquisition instruction sent by the cloud server, converting the data acquisition instruction into a task and bringing the task into task management of the vehicle entertainment host; after the vehicle entertainment host confirms the information of the data file according to the task and the automatic driving controller, the data file is read and sent to the cloud server;
the gateway is used for routing and forwarding data between the automatic driving controller and the vehicle entertainment host;
and the cloud server is used for analyzing the fault event information, issuing a data acquisition instruction to the vehicle entertainment host according to the priority of the fault event information, performing data analysis on the received data file, and providing a data file downloading and analysis page to an analyst.
2. The system for acquiring the vehicle data based on the vehicle entertainment host computer as claimed in claim 1, wherein the vehicle entertainment host computer is in communication connection with the gateway through a CAN bus and an Ethernet, and the gateway is in communication connection with the automatic driving controller through the CAN bus and the Ethernet; the CAN bus is used for transmitting fault event information, and the Ethernet is used for transmitting data files.
3. The system for vehicle-based entertainment host collection of vehicle data of claim 2, wherein said automatic driving controller comprises an ADAS controller and an APA controller;
the ADAS controller comprises a first monitoring module, a second monitoring module and a control module, wherein the first monitoring module is used for monitoring fault events when the driving assistance system operates abnormally;
the APA controller comprises a second monitoring module used for monitoring fault events when the automatic parking auxiliary system operates abnormally; the input of the APA controller is connected with the output of the camera and is used for acquiring the road environment picture and the road environment video when the vehicle is parked automatically.
4. The system of claim 3, wherein the data files include program logs, road environment photos, road environment videos, and CAN bus data.
5. The system for collecting vehicle data based on the vehicle entertainment host machine as claimed in claim 1, wherein the priority comprises a first priority when the vehicle collides, a second priority when the software sub-function abnormally operates, and a third priority when the vehicle abnormally operates; and the primary priority or the secondary priority automatically issues a data acquisition instruction to the vehicle entertainment host after the cloud server receives the fault event information.
6. A method for collecting vehicle data based on a vehicle entertainment host is characterized by comprising the following steps:
s1, monitoring the running state of an automatic driving controller;
s2, when a fault event of the automatic driving controller is monitored, storing upper and lower file information of the fault event as a data file, sending the fault event information to a vehicle entertainment host through a CAN (controller area network) bus, uploading the fault event information to a cloud server by the vehicle entertainment host, and updating a vehicle event analysis page by the cloud server; the cloud server determines whether to issue a data acquisition instruction to the vehicle entertainment host according to the priority of the fault event information, and if so, executes the step S3;
and S3, the vehicle entertainment host reads the data file through the Ethernet according to the data acquisition instruction and feeds the data file back to the cloud server.
7. The method for collecting vehicle data based on the vehicle entertainment host computer according to claim 6, wherein the priority in step S2 comprises a first priority when the vehicle collides, a second priority when the software sub-function operates abnormally, and a third priority when the vehicle operating state is abnormal; the first-level priority or the second-level priority automatically issues a data acquisition instruction to the vehicle entertainment host after the cloud server receives the fault event information.
8. The method for collecting vehicle data based on the vehicle entertainment host computer according to claim 6, wherein in step S3, the step of the vehicle entertainment host computer reading the data file according to the data collection instruction and feeding back the data file to the cloud server includes:
s41, analyzing the data acquisition command by the vehicle entertainment host, converting the data acquisition command into a task, and incorporating the task into task management;
s42, the vehicle entertainment host schedules and executes tasks in task management, whether the tasks are the tasks of the automatic driving controller is judged, if yes, the step S43 is executed, and otherwise, the vehicle entertainment host executes the tasks by itself;
s43, judging whether a task execution condition is met, if so, executing a step S44, otherwise, incorporating the task execution condition into failed task management;
s44, a TCP channel is established between the vehicle entertainment host and the automatic driving controller, and data file information is interacted;
s45, judging whether the automatic driving controller has a required data file, if so, executing a step S46, otherwise, exiting the task;
s46, the vehicle entertainment host reads the data file of the target controller through the Ethernet;
and S47, the vehicle entertainment host judges whether the reading of the data file is finished or not, if so, the data file is uploaded to a cloud server, and otherwise, the data file is brought into the management of the failed task of the vehicle entertainment host.
9. The method for collecting vehicle data based on a vehicle entertainment host computer according to any of claims 6-8, characterized in that the automatic driving controller comprises an ADAS controller and an APA controller;
the ADAS controller comprises a first monitoring module, a second monitoring module and a control module, wherein the first monitoring module is used for monitoring fault events when the driving assistance system operates abnormally;
the APA controller comprises a second monitoring module used for monitoring fault events when the automatic parking auxiliary system operates abnormally; the input of the APA controller is connected with the output of the camera and used for obtaining the road environment picture and the road environment video when the vehicle is parked automatically.
10. The vehicle-based entertainment host computer of claim 9, wherein the data files include program logs, road environment photos, road environment videos, and CAN bus data.
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