CN115273271B - 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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- CN115273271B CN115273271B CN202210735753.1A CN202210735753A CN115273271B CN 115273271 B CN115273271 B CN 115273271B CN 202210735753 A CN202210735753 A CN 202210735753A CN 115273271 B CN115273271 B CN 115273271B
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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
- G07C5/0808—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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention discloses a system and a method for collecting 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 automatic driving controller are respectively in communication connection; the automatic driving controller is used for storing the monitored upper and lower file information of the fault event into a data file; the vehicle entertainment host is integrated with a 4G module and is 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 incorporating the task into task management; and the cloud server transmits 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 data acquisition type and small data volume in the prior art, 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 collecting 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 are continuously appeared, and the exiting and the artificial taking over of the automatic driving are important bases for carrying out responsibility judgment on related accidents. However, when the existing automobile manufacturer processes the after-sales problem of the automobile, the commonly used fault checking means is a diagnostic apparatus, or is performed by remote diagnosis and reading of fault codes, the above-mentioned means lack the context environment of fault occurrence time, and only can identify and process some conventional electrical faults, and for the software faults in the existing automatic driving scene, the software faults in the existing automatic driving scene lack the context of the fault scene and cannot be processed, so that the existing after-sales problem processing mode is limited, and therefore, the vehicle data acquisition method for acquiring the running software logs, road conditions, vehicle running data and the like of the automatic driving related controller is urgently needed, and the acquired content forms comprise videos, pictures, log logs and bus signals.
The invention patent with publication number CN113285861A discloses a vehicle data acquisition method based on an intelligent central gateway, which comprises the steps that the intelligent central gateway GW periodically monitors CAN/LIN bus messages, when an event requiring vehicle data acquisition occurs on the CAN/LIN bus (such as a vehicle fails), message data of all CAN/LIN buses of the vehicle are immediately stored within t1 seconds and within t2 seconds (total t1+t2 seconds) before the event triggering time of the vehicle, packaged and then sent to a vehicle-mounted networking terminal TBOX through an Ethernet bus, and the vehicle-mounted networking terminal TBOX is uploaded to a cloud server through a 4G network so as to support a host factory to analyze the on-line or downloaded vehicle data. The system can directly acquire the vehicle data at the event triggering moment at the cloud server for analysis although the system can be used for analyzing the vehicle data when the vehicle has an event requiring the vehicle data acquisition (such as a vehicle failure), and a delegation engineer is not required to carry a professional tool to go to the site for reading, so that the real-time performance and convenience of the vehicle data acquisition are greatly improved, and the trouble that the host factory is difficult to acquire the vehicle data of the 'sporadic' event is reduced.
However, the patent only collects communication data of the CAN/LIN bus of the vehicle, and then the communication data is packed into a protocol in the host factory through the Ethernet and transmitted to the central gateway, and then the bus data is transmitted to the cloud server for storage. Because the CAN bus carries signal quantity with limitation, and the current automatic driving has used road image recognition, the CAN CAN not collect key images and videos, and further CAN not collect running logs in the controller. Therefore, the patent has the problems of single acquisition type and small acquisition data volume, can not complete data acquisition related to the automatic driving field, and can not achieve the purposes of helping software developers and after-sales personnel to carry out responsibility judgment and software fault processing.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to solve the technical problems that: 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:
the system comprises a cloud server and a vehicle end in communication connection with the cloud server, wherein the vehicle end comprises a vehicle entertainment host, a gateway and an automatic driving controller, and the vehicle entertainment host is in communication connection with the gateway and the automatic driving controller respectively;
the automatic driving controller is used for storing the monitored upper and lower file information of the fault event into 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 is 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 incorporating the task into task management of the vehicle entertainment host; the vehicle entertainment host computer reads the data file and sends the data file to the cloud server after confirming the information of the data file according to the task and the automatic driving controller;
the gateway is used for forwarding data between the automatic driving controller and the vehicle entertainment host computer in a routing way;
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 analyzing page for an analysis staff.
Further, the vehicle entertainment host and the gateway are connected through CAN bus and Ethernet communication, and the gateway and the automatic driving controller are connected through CAN bus and Ethernet communication; the CAN bus is used for transmitting fault event information, and the Ethernet is used for transmitting data files.
Further, the data file includes a program log, a road environment photo, a road environment video, and CAN bus data.
Further, the priority comprises a first-level priority when the vehicle collides, a second-level priority when the software sub-functions are abnormal, and a third-level priority when the vehicle running 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.
The invention also provides a method for collecting 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 into a data file, sending the fault event information to a vehicle entertainment host through a CAN bus, enabling the vehicle entertainment host to a cloud server to upload the fault event information, 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, step S3 is executed;
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, the priorities in step S2 include a first order priority at the time of a vehicle collision, a second order priority at the time of a software sub-function operation abnormality, and a third order priority at the time of a vehicle operation state abnormality; 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 the vehicle entertainment host reading the data file according to the data acquisition instruction and feeding back the data file to the cloud server includes:
s41, analyzing a data acquisition instruction by a vehicle entertainment host, converting the data acquisition instruction into a task, and incorporating the task into task management;
s42, the vehicle entertainment host schedules and executes the task in the task management, judges whether the task is the task of the automatic driving controller, if so, executes the step S43, otherwise, the vehicle entertainment host executes the task by itself;
s43, judging whether the task execution condition is met, if yes, executing a step S44, otherwise, incorporating in failed task management;
s44, the vehicle entertainment host establishes a TCP channel with the automatic driving controller, and interacts data file information;
s45, judging whether a required data file exists in the automatic driving controller, 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;
s47, the vehicle entertainment host computer judges whether reading of the data file is completed, if so, the data file is uploaded to the cloud server, otherwise, the data file is incorporated into failed task management of the vehicle entertainment host computer.
Further, the automatic driving controller comprises an ADAS controller and an APA controller;
the ADAS controller comprises a monitoring module, a control module and a control module, wherein the monitoring module is used for monitoring a fault event when the driving auxiliary system operates abnormally; (Advanced Driver Assistance System) advanced driving assistance systems including ACC automatic cruise systems, AEB automatic brake systems, LDW lane departure warning systems, BSD blind spot monitoring systems, and the like;
the APA controller comprises a monitoring module for monitoring a fault event when the automatic parking auxiliary system is abnormal in operation; the input of the APA controller is connected with the output of the camera, and the APA controller is used for acquiring a road environment photo and a road environment video when the vehicle is parked automatically.
Further, the data file includes a program 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 invention stores the context information of the fault event into a data file, then sends the data file to the vehicle entertainment host through the CAN bus, and the vehicle entertainment host uploads the fault event information to the cloud server through the 4G module, after receiving the fault event information, the cloud server issues a data acquisition instruction to the vehicle entertainment host according to the priority of the fault event information, the vehicle entertainment host and the automatic driving controller acquire the data file after performing interactive confirmation of the data file information, the data file is uploaded to the cloud server through Ethernet, the cloud server displays the data file in a corresponding page after acquiring the file, and performs data analysis on the received data file, and provides a data file downloading and analyzing page for an analyzer, thereby realizing remote automatic acquisition of operation data acquisition of related accidents or faults of the automatic driving controller, and acquisition content diversification and acquisition of data volume.
2. The invention performs data acquisition based on the vehicle entertainment host, realizes data acquisition diversification and data volume maximization, has high data acquisition efficiency due to high host configuration and good performance, and can save device cost compared with the traditional scheme based on Tbox and other devices.
Drawings
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram 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 present invention for fault event information upload;
FIG. 3 is a flow chart of uploading data files by the vehicle entertainment host according to the present invention;
FIG. 4 is a flow chart of a manual data file of the present invention;
FIG. 5 is a schematic illustration of the present invention vehicle entertainment host task management.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the system for collecting vehicle data based on a vehicle entertainment host provided in this embodiment includes a cloud server, and a vehicle end communicatively connected to the cloud server, where the vehicle end includes a vehicle entertainment host (vehicle machine), a gateway and an autopilot controller, and the vehicle entertainment host and the gateway, and the gateway and the autopilot controller are respectively communicatively connected to each other;
the automatic driving controller is used for storing the monitored upper and lower file information of the fault event into 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 is 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 incorporating the task into task management of the vehicle entertainment host; the vehicle entertainment host computer reads the data file and sends the data file to the cloud server after confirming the information of the data file according to the task and the automatic driving controller; the 4G module can access the Internet and private and public cloud servers.
The gateway is used for forwarding data between the automatic driving controller and the vehicle entertainment host computer in a routing way;
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 analyzing page for an analysis staff.
According to the invention, when an automatic driving controller monitors a fault event, the fault event is named for the abnormal record file according to the fault event ID, the context information of the fault event is stored into a data file, the data file is then transmitted to a vehicle entertainment host through a CAN bus, the vehicle entertainment host uploads the fault event information to a cloud server through a 4G module, the cloud server issues 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 analyzes the instruction and then carries out interaction of the data file information to the controller, the vehicle entertainment host obtains the data file through Ethernet, uploads the data file to the cloud server, the cloud server acquires the data file and then carries out data analysis on the received data file, and a data file downloading and analyzing page is provided for an analysis staff, so that the operation data acquisition of related accidents or faults of the automatic driving controller is realized, the acquisition content is diversified, and the acquisition data volume is huge. Meanwhile, the aim of helping software developers and after-sales personnel to judge responsibility and process software faults can be achieved according to the data files.
In the specific implementation, the vehicle entertainment host and the gateway are connected through CAN bus and Ethernet communication, and the gateway and the automatic driving controller are connected through CAN bus and Ethernet communication; CAN bus communication has reliable and stable communication characteristics, and Ethernet (Ethernet) has characteristics of high bandwidth. The CAN bus is thus used for transmitting fault event information, ethernet for transmitting data files.
In specific implementation, the automatic driving controller comprises an ADAS controller and an APA controller;
an ADAS controller (Advanced Driver Assistance System, advanced driving assistance system) includes a first monitoring module for monitoring a fault event when the driving assistance system is operating abnormally. The anomaly record file is named according to the fault event ID (i.e., event ID), and the recorded data file includes pictures, videos, and the like. The ADAS controller comprises an ACC automatic cruise system, an AEB automatic brake system, an LDW lane departure early warning system, a BSD blind area monitoring system and the like.
The APA controller (Auto Parkig Assist System) comprises a second monitoring module for monitoring a fault event when the automatic parking assistance system is abnormal in operation; the input of the APA controller is connected with the output of the camera, and the APA controller is used for acquiring a road environment photo and a road environment video when the vehicle is parked automatically.
In specific implementation, the data file includes 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 sub-functions run abnormally and a third-level priority when the vehicle running 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. The instruction is sent to the vehicle entertainment host, and the vehicle entertainment host is the only node outside the vehicle in the system. The command is accompanied by a plurality of information, and the vehicle entertainment host acquires the information and then requests the automatic driving controller to acquire the fault data file.
The specific cloud server issuing a data acquisition instruction comprises: 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. event occurrence time; 6. message ID, etc.
The invention also provides a method for collecting 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 into a data file, sending the fault event information to a vehicle entertainment host through a CAN 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, step S3 is executed;
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 invention stores the context information of the fault event into a data file, then sends the data file to the vehicle entertainment host through the CAN bus, and the vehicle entertainment host uploads the fault event information to the cloud server through the 4G module, after receiving the fault event information, the cloud server issues a data acquisition instruction to the vehicle entertainment host according to the priority of the fault event information, the vehicle entertainment host and the automatic driving controller acquire the data file after performing interactive confirmation of the data file information, the data file is uploaded to the cloud server through Ethernet, the cloud server displays the data file in a corresponding page after acquiring the file, and performs data analysis on the received data file, and provides a data file downloading and analyzing page for an analyzer, thereby realizing remote automatic acquisition of operation data acquisition of related accidents or faults of the automatic driving controller, and acquisition content diversification and acquisition of data volume.
The specific uploading flow of the fault event information in the step S2 is shown in fig. 2, and the autopilot controller includes a monitoring module for abnormal running of the software state, which can capture the abnormal state in the use process of the autopilot function, when the fault event is detected, the abnormal record file is named according to the fault event ID, and the up-and-down file information of the fault event is stored in the autopilot controller in the form of a data file, wherein the recorded data file includes pictures, videos and the like. And simultaneously, capturing CAN data of the first T1 seconds and the last T2 seconds of abnormal states.
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 the fault event information and records the fault event information, and meanwhile, the cloud server updates a vehicle event analysis page so that an analysis person CAN send a data acquisition instruction through the analysis page to 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 or not according to the priority of the fault event ID of the received fault event information, wherein the judged strategy is flexibly configured by the cloud server management background, so that more vehicle-end data can be reliably acquired in the early debugging stage. The priorities in the embodiment comprise a first-level priority when the vehicle collides, a second-level priority when the software sub-functions run abnormally and a third-level priority when the vehicle running state is abnormal; the first-level priority or the second-level priority automatically transmits 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 the vehicle entertainment host reading the data file 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 instruction, converts the data acquisition instruction into a task and is incorporated into task management;
s32, the vehicle entertainment host schedules and executes the task in task management, judges whether the task is the task of the automatic driving controller, if so, executes the step S43, otherwise, the vehicle entertainment host executes the task by itself;
s33, judging whether the task execution condition is met, if yes, executing a step S44, otherwise, incorporating in failed task management; when the vehicle end is in the OFF gear and the CPU load in the vehicle is too high, the task cannot be executed, and the failed task is transferred to the failed task queue.
S34, the vehicle entertainment host establishes a TCP channel with the automatic driving controller, and interacts data file information;
s35, judging whether a required data file exists in the automatic driving controller, 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;
s37, the vehicle entertainment host judges whether reading of the data file is completed, if so, the data file is uploaded to the cloud server, otherwise, the data file is incorporated into failed task management of the vehicle entertainment host.
In the running process of the real vehicle, the time is relatively consumed in some cases from the consideration of the occurrence frequency of fault events and the scene of overlarge acquisition of the vehicle-end data file, so that the data acquisition instruction issued by the cloud server is required to be cached, the instruction is regarded as a task in the vehicle entertainment host, the vehicle entertainment host analyzes the instruction issued by the cloud server, converts the instruction into the task, and the task management is carried out by the vehicle entertainment host.
The vehicle entertainment host establishes a TCP channel with the automatic driving controller, interacts data file information, sends event ID, occurrence time and type of the data file required to be acquired, and after acquiring the request, the controller searches whether the data requested by the vehicle according to the data in the request, if so, returns the searched file name and path to the vehicle, and if not, informs the vehicle of the result. And then, the data file is read from the controller to the vehicle entertainment host by using a TFTP (simple file transfer protocol) through the Ethernet, if the reading fails in the reading process, the data file is tried for 3 times, and if the three times of reading fails, the task management of the vehicle entertainment host fails. The cloud server can use the network disk service of the third party to store the file, when the vehicle entertainment host uploads the address of the data file, then the file is uploaded to the network disk, finally the private cloud server is informed of the successful uploading result, the private cloud service updates the result to the database after acquiring the execution result, and therefore the event on the page and the corresponding data acquisition state are updated to be completed.
The specific cloud server issuing a data acquisition instruction comprises: 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. event occurrence time; 6. 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 for monitoring fault events when the driving assistance system is abnormal in operation. The anomaly record file is named according to the fault event ID (i.e., event ID), and the recorded data file includes pictures, videos, and the like. The ADAS controller comprises an ACC automatic cruise system, an AEB automatic brake 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, a first monitoring module and a second monitoring module, wherein the second monitoring module is used for monitoring a fault event when the automatic parking auxiliary system is abnormal in operation; the input of the APA controller is connected with the output of the camera, and the APA controller is used for acquiring a road environment photo and a road environment video when the vehicle is parked automatically.
In specific implementation, the data file includes a program running log, a road environment photo, a road environment video and CAN bus data.
Referring to fig. 4, the embodiment further includes that an analyst manually obtains a data file through a vehicle event analysis page, specifically:
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 transmits a data acquisition instruction to a vehicle entertainment host corresponding to the vehicle end;
and the vehicle entertainment host computer receives the data acquisition instruction and then executes the data acquisition instruction according to the step S3.
When an analyst clicks a page to obtain a fault data file, if the file is not uploaded to a server, the cloud server issues an instruction to the vehicle-end entertainment host, the vehicle-mounted device analyzes the instruction and converts the instruction into a task, a target controller code is identified when the task is executed, if the target controller code is not the vehicle-mounted device, the vehicle-mounted device carries out file information interaction on the controller through Ethernet, whether the file corresponding to the fault point time exists is confirmed, if the file exists, the vehicle-mounted device 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 the task is stored in a conventional queue (i.e. the task is included in task management), when the task fails in the process of downloading a file from the controller or uploading the file to the cloud server, the task also fails when the current condition of the vehicle is not met (the vehicle gear, the electric quantity and the CPU do not meet the execution), and the failed task is transferred to a failure queue. When the next vehicle gear is restored to the ON gear or the CPU is restored to the normal level from overload, the failed task ID is reported to the cloud server or the private cloud server, the context information of the corresponding fault event information is acquired according to the task ID, and a command is issued to the terminal again to finish the 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 only intended to illustrate the technical solution of the present invention and not to limit the same, and that although the present invention has been described with reference to the preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein. Obvious changes that are extended by the technical proposal of the invention are still within the scope of the invention.
Claims (4)
1. The system is characterized by comprising a cloud server and a vehicle end in communication connection with the cloud server, wherein the vehicle end comprises a vehicle entertainment host, a gateway and an automatic driving controller, and the vehicle entertainment host is in communication connection with the gateway and the gateway is in communication connection with the automatic driving controller respectively;
the automatic driving controller is used for storing the monitored upper and lower file information of the fault event into 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 is 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 incorporating the task into task management of the vehicle entertainment host; the vehicle entertainment host computer reads the data file and sends the data file to the cloud server after confirming the information of the data file according to the task and the automatic driving controller;
the gateway is used for forwarding data between the automatic driving controller and the vehicle entertainment host computer in a routing way;
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 analyzing page for an analysis staff;
a method of collecting vehicle data based on a vehicle entertainment host, comprising the steps of:
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 into a data file, sending the fault event information to a vehicle entertainment host through a CAN 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, step S3 is executed;
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;
the priority in the step S2 comprises a first-level priority when the vehicle collides, a second-level priority when the software sub-functions run abnormally and a third-level priority when the vehicle running 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;
in step S3, the step of reading the data file by the vehicle entertainment host according to the data acquisition instruction and feeding the data file back to the cloud server includes:
s41, analyzing a data acquisition instruction by a vehicle entertainment host, converting the data acquisition instruction into a task, and incorporating the task into task management;
s42, the vehicle entertainment host schedules and executes the task in the task management, judges whether the task is the task of the automatic driving controller, if so, executes the step S43, otherwise, the vehicle entertainment host executes the task by itself;
s43, judging whether the task execution condition is met, if yes, executing a step S44, otherwise, incorporating in failed task management;
s44, the vehicle entertainment host establishes a TCP channel with the automatic driving controller, and interacts data file information;
s45, judging whether a required data file exists in the automatic driving controller, 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;
s47, the vehicle entertainment host computer judges whether reading of the data file is completed, if so, the data file is uploaded to the cloud server, otherwise, the data file is incorporated into failed task management of the vehicle entertainment host computer.
2. The system for collecting vehicle data based on a vehicle entertainment host according to claim 1, wherein the vehicle entertainment host is connected to the gateway through a CAN bus and Ethernet communication, and the gateway is connected to the autopilot controller through a CAN bus and Ethernet communication; the CAN bus is used for transmitting fault event information, and the Ethernet is used for transmitting data files.
3. The vehicle entertainment host based vehicle data collection system of claim 2, wherein the autopilot 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 a fault event when the driving auxiliary system operates abnormally;
the APA controller comprises a second monitoring module, a first monitoring module and a second monitoring module, wherein the second monitoring module is used for monitoring a fault event when the automatic parking auxiliary system is abnormal in operation; the input of the APA controller is connected with the output of the camera, and the APA controller is used for acquiring a road environment photo and a road environment video when the vehicle is parked automatically.
4. A system for collecting vehicle data based on a vehicle entertainment host machine as defined in claim 3, wherein the data file includes a program log, a road environment photograph, a road environment video and CAN bus data.
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