CN111294768A - Remote vehicle-mounted system and fault diagnosis, information acquisition and remote upgrading method thereof - Google Patents
Remote vehicle-mounted system and fault diagnosis, information acquisition and remote upgrading method thereof Download PDFInfo
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- CN111294768A CN111294768A CN202010265151.5A CN202010265151A CN111294768A CN 111294768 A CN111294768 A CN 111294768A CN 202010265151 A CN202010265151 A CN 202010265151A CN 111294768 A CN111294768 A CN 111294768A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/44—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
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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
- G07C5/006—Indicating maintenance
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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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- 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
- H04L12/40006—Architecture of a communication node
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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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- 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
- H04L2012/40234—Local Interconnect Network LIN
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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
- H04L2012/40267—Bus for use in transportation systems
- H04L2012/40273—Bus for use in transportation systems the transportation system being a vehicle
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Abstract
A remote vehicle-mounted system and a fault diagnosis, information acquisition and remote upgrading method thereof belong to the technical field of networks, vehicle CAN buses and vehicle-mounted Ethernet. The technical points are as follows: the method comprises the following steps: the intelligent automobile diagnosis system comprises a main controller, a diagnosis controller, an intelligent gateway, a wireless communication module, a remote server and an intelligent terminal, wherein the main controller is respectively connected with the diagnosis controller, the intelligent gateway and the wireless communication module, the wireless communication module is connected with the remote server, the remote server is connected with the intelligent terminal, the intelligent gateway is connected with an automobile ECU through an Ethernet, and the diagnosis controller is respectively connected with the automobile ECU through a CAN bus, a K line and a LIN line. Has the advantages that: the invention overcomes the defect that the vehicle needs to enter the store for fault diagnosis or the bus support of other equipment is incomplete, can remotely obtain each relevant information of the vehicle, and solves the problem that the system can not be upgraded in the running process of the vehicle.
Description
Technical Field
The invention belongs to the technical field of networks, vehicle CAN buses and vehicle-mounted Ethernet, and particularly relates to a remote vehicle-mounted system supporting the vehicle-mounted Ethernet and a fault diagnosis, information acquisition and remote upgrading method thereof.
Background
With the rapid development of network technology, people can not only realize long-distance communication, but also data transmission, video entertainment and the like by utilizing the network. All people are inseparable from the network at present. Meanwhile, with the popularization of automobiles and the coming of the foreseeable future unmanned driving era, the interaction between people and automobiles, the safety problem of the automobiles, the timely understanding of the people on the failure of the automobiles or the state information of the automobiles and the experience of the people on the automobiles become more important.
With the rapid development of semiconductor, electronic and communication industries, the demand for intellectualization of automobile electronic control units is increasing. However, the transmission rate of the CAN bus CAN only reach 1Mbit/s at most, the load rate of the bus is increased rapidly due to the large increase of the electronic control units, the reliability and the real-time performance of information transmission are influenced, and the vehicle-mounted ethernet technology is generated to meet the requirement of high bandwidth of an automobile. However, the ethernet diagnosis, data acquisition and upgrading on the market do not have a good system matching with the ethernet diagnosis, data acquisition and upgrading.
The existing on-board diagnosis equipment and system need to use a diagnosis instrument to carry out field fault diagnosis on the real vehicle. There is no way to confirm the fault of the vehicle at the first time when the fault occurs, because the existing scheme needs to move the vehicle to a service provider to use a diagnostic instrument to diagnose the fault of the vehicle, and the time for fault maintenance is long.
Meanwhile, the existing diagnostic equipment only supports CAN line diagnosis of an OBD interface of a vehicle, and is not compatible with K line and new Ethernet diagnosis, so that some vehicles and faults cannot be diagnosed.
Vehicles on the market are more and more, and the upgrading and updating of vehicle electronic control units are more and more important. However, the vehicle is in operation most of the time and is relatively decentralized, thus causing certain difficulties in the upgrading process. And the current main method is field upgrading, which is time-consuming and labor-consuming.
In a relatively large parking lot, most car owners need to remember the car position numbers, but can not find own cars very smoothly finally, and meanwhile, at present, more and more electronic terminals are provided, and terminals which cannot be connected with a network cannot be used in the cars.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a remote vehicle-mounted system supporting a vehicle-mounted Ethernet and a fault diagnosis, information acquisition and remote upgrading method thereof, which overcome the defects that the vehicle needs to enter a store for fault diagnosis or the bus support of other equipment is incomplete, can remotely acquire each piece of relevant information of the vehicle, and solve the problem that the system cannot be upgraded in the running process of the vehicle.
The technical scheme is as follows:
a remote in-vehicle system supporting in-vehicle ethernet, comprising: the intelligent automobile diagnosis system comprises a main controller, a diagnosis controller, an intelligent gateway, a wireless communication module, a remote server and an intelligent terminal, wherein the main controller is respectively connected with the diagnosis controller, the intelligent gateway and the wireless communication module, the wireless communication module is connected with the remote server, the remote server is connected with the intelligent terminal, the intelligent gateway is connected with an automobile ECU through an Ethernet, and the diagnosis controller is respectively connected with the automobile ECU through a CAN bus, a K line and a LIN line.
The diagnosis controller is connected with the CAN bus through the CAN transceiver, is connected with the K line through the K transceiver, and is connected with the LIN line through the LIN transceiver.
Further, still include power management module, orientation module, off-chip storage module, wiFi module, main control unit respectively with power management module, orientation module, off-chip storage module are connected, main control unit pass through USB with wireless communication module links to each other, the wiFi module with wireless communication module links to each other.
Furthermore, the intelligent gateway also comprises an infotainment system, and the infotainment system is connected with the intelligent gateway.
The invention also comprises a remote vehicle-mounted system fault diagnosis method supporting the vehicle-mounted Ethernet, which comprises the following steps:
s1, when the vehicle has a fault, the service provider uses the remote server after receiving the request of the owner, firstly sends the key and the authentication information to the target vehicle, and after the equipment system returns the correct key information within the specified time, the remote server end can start the remote diagnosis service;
s2, the remote server end sends a diagnosis request to the target vehicle, after the system receives the request, the diagnosis controller selects a corresponding bus according to the instruction of the remote server, and the diagnosis controller communicates with the ECU of the vehicle through the controller and the transceiver to diagnose and read fault information;
s3, after being processed by the diagnosis controller, the fault information of the vehicle is sent to a remote server through a wireless communication module, the remote server automatically analyzes the fault information, feeds the analysis result back to a worker, and informs the worker of the fault analysis result;
and S4, if the driving safety is not influenced, the owner can automatically select proper time to maintain, and if the driving safety is influenced, the staff can provide road rescue and maintenance service.
Furthermore, when the vehicle runs, the fault information of the vehicle is periodically read through the Ethernet, the CAN line and the K line and is sent to the remote server through the wireless communication module.
Further, the control of the vehicle-mounted Ethernet comprises the following steps:
1. confirming that the vehicle-mounted Ethernet is in a receivable state;
2. establishing communication between an external Ethernet and a vehicle-mounted Ethernet, and keeping a refreshing data route;
3. the diagnosis information of the vehicle is accessed through the intelligent gateway and is uploaded to the remote server through the wireless communication module.
Further, in step S3, the automatic analysis process is as follows: the remote server compares and matches the fault information data stream with fault code information stored in a fault information database, and analyzes and obtains a fault code, a fault description, a maintenance suggestion and a generation reason.
The invention also comprises a remote vehicle-mounted system information acquisition method supporting the vehicle-mounted Ethernet, wherein a vehicle leasing company logs in a remote server through an authenticated account, then autonomously checks the running state of a corresponding vehicle and the information of each sensor through the remote server, when the vehicle runs, the vehicle runs through a main controller, a diagnosis controller and an intelligent gateway, and communicates with each ECU or a domain controller through the Ethernet, a CAN line, an LIN line and a K transceiver, periodically reads the running state of the vehicle, acquires the information of various states in real time, simultaneously transmits the information to the remote server through a wireless communication module, and the remote server comprehensively analyzes the vehicle information and checks the information through the remote server by a user.
The invention also comprises a remote vehicle-mounted system remote upgrading method supporting the vehicle-mounted Ethernet, which comprises the following steps:
s1, the service provider logs in the remote server to set the upgrading requirement, and the remote server sets the upgrading to start;
s2, the remote server generates a secret key and communicates with the equipment system through the wireless communication module, and the remote server authenticates the equipment and encrypts the transmitted information;
s3, after the main controller receives the upgrading instruction of the remote server through the wireless communication module, the message is authenticated and the secret key is judged, and if the message is correct, the feedback message is sent to the server;
s4, the main controller judges the current upgrading state, and after success, the area corresponding to the upgrading instruction is stored outside the erase chip;
s5, the main controller and the remote server carry out encryption communication, the upgrade package issued by the server is stored in the corresponding area, and the file package is decrypted and verified after all upgrade files are received;
s6, if the upgrade package has no problem, selecting the idle time of the vehicle, and upgrading the corresponding electronic control unit;
s7, after the upgrade is finished, the equipment system feeds back the upgrade result to the remote server;
and S8, the remote server records the upgrading results of all the upgrading devices and pushes the upgrading results to related personnel.
The remote vehicle-mounted system and the method for fault diagnosis, information acquisition and remote upgrade thereof have the following beneficial effects:
1. the invention supports the field and remote diagnosis of the automobile, comprises the bus type support of Ethernet four-wire diagnosis, CAN bus diagnosis and K-wire diagnosis, and overcomes the defects that the fault diagnosis of the automobile entering a store is necessary, or the bus support of other equipment is incomplete, similar to the defect that the Ethernet diagnosis cannot be supported, and the like.
2. The invention supports network remote information acquisition, acquires component information such as a vehicle controller and the like through a two-wire Ethernet, a CAN bus, a LIN bus and the like, and image video information of a vehicle monitoring system, CAN conveniently and quickly acquire each piece of relevant information of a vehicle remotely, and CAN quickly position the vehicle through the positioning module.
3. The invention supports remote upgrading of the automobile controller through a network, comprises a remote server, an off-chip storage unit, an equipment gateway and an automobile control unit, and solves the problem that a program needs to be upgraded on site or the automobile cannot be upgraded during running.
4. The vehicle positioning system provides vehicle positioning service for users through the GPS module, provides network hotspot service for the users through the WiFi module, provides various personalized vehicle entertainment information customizing functions for the users through the vehicle information entertainment system module, and can interact with the vehicle positioning service through voice. The problem of user's former carloader experience not good or can't individualized customization oneself like information is solved.
Meanwhile, the intelligent gateway is used for the firewall function, and only the client allowing authentication can perform a series of operations on the vehicle through the equipment.
Drawings
FIG. 1 is a schematic view of the overall design structure of the present invention;
FIG. 2 is a schematic diagram of the diagnosis structure of the CAN line, the K line and the LIN line of the present invention;
FIG. 3 is a schematic diagram of the architecture of the vehicular Ethernet (including 2-wire and 4-wire) of the present invention;
FIG. 4 is a schematic diagram of a remote diagnostic configuration according to the present invention;
FIG. 5 is a schematic diagram of a remote upgrade architecture of the present invention;
FIG. 6 is a schematic diagram of an infotainment system according to the invention.
Detailed Description
The following describes the remote vehicle-mounted system supporting the vehicle-mounted ethernet and the method for fault diagnosis, information acquisition and remote upgrade thereof with reference to fig. 1 to 6.
Example 1
The system can effectively improve the large-bandwidth data interaction capacity and the low-delay data transmission capacity of the automobile, and supports the remote service of the Internet of vehicles terminal equipment.
The system intelligent gateway at least comprises two CAN transceivers, a K transceiver, a LIN transceiver and an Ethernet switch. The CAN transceiver is connected with the CAN bus, the K transceiver is connected with the K line, the LIN transceiver is connected with the LIN line, and the Ethernet switch is connected with the domain controller and the wireless communication module. The vehicle-mounted information entertainment system is connected with the intelligent gateway.
The power management module, the GPS module and the off-chip storage are connected with the main controller, and the main controller is connected with the wireless communication module through a USB. Meanwhile, the WiFi module is connected with the wireless communication module.
Function 1-diagnostic function summary description
The diagnosis controller is connected to a CAN bus and a K line of the vehicle, the diagnosis controller realizes the functions of data receiving, processing, message forwarding and the like, the fault information of each ECU on the vehicle is obtained, the fault information is sent to a remote server through an intelligent gateway, and the fault information is analyzed at the remote server side to obtain a diagnosis result. The system can quickly realize fault vehicle diagnosis and fault information sharing interaction, more effectively reduce the maintenance cost and the maintenance man-hour, save the time of a vehicle owner, and further improve the vehicle maintenance efficiency.
The CAN transceiver is connected with the ECU through a CAN bus; the network communication module is connected with the cloud server; the Ethernet switch is connected with the gateway ECU through the Ethernet; the diagnosis controller is connected with the CAN transceiver and is communicated with the ECU on the vehicle through the CAN transceiver and the CAN bus, the main controller is connected with the communication module and is communicated with the cloud server through the communication module, the main controller is connected with the Ethernet switch through the Ethernet interface and is communicated with the gateway ECU and the like through the Ethernet switch and the Ethernet line.
According to the invention, the CAN interaction and the Ethernet interaction between the equipment and each ECU of the vehicle body CAN be realized by using one diagnosis controller, and the data interaction CAN be realized by using the communication module and the cloud server, so that more convenient and richer real remote diagnosis services are fully provided.
Meanwhile, the communication between the cloud server and the equipment end is encrypted and transmitted, the secret key is sent to the equipment end during each diagnosis, the equipment end feeds back the secret key information within the specified time, and the vehicle can be diagnosed only after the authentication is passed.
Function 2-information acquisition function overview description
The system reads the working condition and maintenance information of the vehicle through a CAN bus, a K line, a LIN line and an Ethernet, finally sends the obtained vehicle information to a remote server through a wireless communication module, analyzes the state information of the vehicle, and CAN synchronize the analysis result to a service provider, a vehicle owner and the like if the need exists.
Function 3-remote upgrade function summary description
The method comprises the steps that a service provider sets an upgrade requirement, a server sets upgrade to start, the server communicates with an equipment system through a wireless communication module, the server authenticates equipment and encrypts transmitted information, a main controller receives an upgrade instruction of the server and then authenticates the information and judges the current upgrade state, after the upgrade instruction is successfully received, an area corresponding to the upgrade instruction is stored outside an erasing chip, meanwhile, the server performs encryption communication with the server, and an upgrade package issued by the server is stored in the corresponding area. And after receiving all the upgrade files, decrypting and verifying the file package. If the upgrade package has no problem, selecting the idle time of the vehicle, upgrading the corresponding electronic control unit, and after the upgrade is completed, feeding the upgrade result back to the remote server by the equipment system.
Functional 4-location, hotspot, and entertainment System overview
The device system has the positioning function that the device is connected with the Beidou/GPS to position each device, positioning information is transmitted to the cloud server through the main controller through the wireless communication module, and when a vehicle is flameout, the device system automatically wakes up at intervals of 24H and sends the positioning information to the remote server. And meanwhile, the cloud server stores the positioning and judges and presents the track, and the result is shared to the vehicle owner or the service provider.
The hot spot function, equipment pass through the wiFi module, connect the wireless communication module, provide wireless hot spot function for the car owner, can save car owner's own flow to and provide network service for the equipment that does not have direct wireless communication ability.
The entertainment function, customer can pass through the mode such as believe a little, app, register oneself equipment, accomplish one-to-one binding with equipment, later set up information such as own hobby, equipment system can carry out corresponding entertainment information according to the setting of server, or carry out relative broadcast music, weather information, navigation etc. according to customer's voice command.
Example 2
A remote in-vehicle system supporting in-vehicle ethernet, comprising: the intelligent automobile diagnosis system comprises a main controller, a diagnosis controller, an intelligent gateway, a wireless communication module, a remote server and an intelligent terminal, wherein the main controller is respectively connected with the diagnosis controller, the intelligent gateway and the wireless communication module, the wireless communication module is connected with the remote server, the remote server is connected with the intelligent terminal, the intelligent gateway is connected with an automobile ECU through an Ethernet, and the diagnosis controller is respectively connected with the automobile ECU through a CAN bus, a K line and a LIN line.
The diagnosis controller is connected with the CAN bus through the CAN transceiver, is connected with the K line through the K transceiver, and is connected with the LIN line through the LIN transceiver.
Further, still include power management module, orientation module, off-chip storage module, wiFi module, main control unit respectively with power management module, orientation module, off-chip storage module are connected, main control unit pass through USB with wireless communication module links to each other, the wiFi module with wireless communication module links to each other.
Furthermore, the intelligent gateway also comprises an infotainment system, and the infotainment system is connected with the intelligent gateway.
(1) Function 1-diagnostic function implementation reference
If the vehicle breaks down, the service provider uses the remote server after receiving the request of the owner, firstly, the key and the authentication information are sent to the target vehicle, and after the equipment system returns the correct key information within the specified time, the server side can start the remote diagnosis service. The server end sends a diagnosis request to a target vehicle, after the system receives the request, the diagnosis controller selects a corresponding bus according to the instruction of the remote server, the corresponding bus is communicated and diagnosed with an ECU of the vehicle through the controller and the transceiver, the fault information is read, and finally the fault information of the vehicle is sent to the remote server through the wireless communication module after being processed by the diagnosis controller, the remote server automatically analyzes the fault information (namely the remote server compares and matches a fault information data stream with fault code information stored in a fault information database, analyzes and obtains results including fault codes, fault description, maintenance suggestions, possible generation reasons and the like), and feeds back the analysis result to a worker, and the worker informs the worker of the fault analysis result of the vehicle owner, if the driving safety is not influenced, the vehicle owner can automatically select proper time for maintenance, if driving safety is affected, the crew may provide roadside assistance and maintenance services.
Meanwhile, when the vehicle runs, the system CAN periodically read the fault information of the vehicle through the Ethernet, the CAN line and the K line, and sends the fault information to the remote server through the wireless communication module. And a more rapid service is provided for the service provider to grasp the vehicle fault state in time.
For the vehicle-mounted Ethernet, the method comprises the following steps:
1. confirming that the onboard ethernet is in a receivable state.
2. And establishing communication between the external Ethernet and the vehicle-mounted Ethernet, and keeping a refreshing data route.
3. The diagnosis information of the vehicle is accessed through the intelligent gateway and is uploaded to the remote server through the wireless communication module.
(2) Function 2-information retrieval function implementation reference
If the automobile leasing company needs to know the information of the running speed, the oil life and the like of the vehicle, the automobile leasing company needs to log in the remote server through the authenticated account, and then the running state of the corresponding vehicle and the information of each sensor can be automatically checked through the remote server. When a vehicle runs, the system periodically reads the running state of the vehicle and communicates with each ECU or domain controller (gateway domain controller, multimedia control unit domain controller, vehicle body control domain controller and the like) through the main controller, the diagnosis controller and the intelligent gateway through transceivers such as Ethernet, CAN lines, LIN lines, K lines and the like, so as to obtain various state information in real time, and simultaneously transmits the information to a remote server through a wireless communication module. And the remote server performs comprehensive analysis on the vehicle information. If the user needs, the user can check the information through the remote server process.
(3) Function 3-remote upgrade function implementation reference
1. The service provider logs in the remote server to set the upgrade requirement, and the server sets the upgrade to start
2. The server generates a secret key, communicates with the equipment system through the wireless communication module, authenticates the equipment and encrypts the transmitted information
3. And after receiving the upgrading instruction of the server through the wireless communication module, the main controller authenticates the message and judges the secret key, and if the message is correct, the main controller sends a feedback message to the server.
4. And the main controller judges the current upgrading state, and erases the area corresponding to the upgrading instruction stored outside the chip after the upgrading state is successfully upgraded.
5. The main controller and the server carry out encryption communication, and the upgrade package issued by the server is stored in the corresponding area. And after receiving all the upgrade files, decrypting and verifying the file package.
6. And if the upgrading package has no problem, selecting the idle time of the vehicle and upgrading the corresponding electronic control unit.
7. And after the upgrading is finished, the equipment system feeds the upgrading result back to the remote server.
8. And the remote server records the upgrading results of all the upgrading devices and pushes the upgrading results to related personnel.
(4) Function 4-locate, hotspot, and entertainment System function implementation reference
After the vehicle owner binds the equipment system one to one through the remote server, the user name and the password of the WiFi module can be set through the remote server, and then the vehicle owner can connect the mobile terminal of the vehicle owner with the network through the WiFi.
The equipment system sends real-time positioning of the vehicle to the remote server at regular intervals, and when the vehicle is shut down, the equipment system automatically wakes up to send storage battery voltage and positioning information of the vehicle to the remote server every 24 hours. The car owner and the service provider can judge the electric quantity of the storage battery according to the voltage information so as to prevent the problems of incapability of starting, timely rescue and the like, and meanwhile, the car owner can more quickly and conveniently find the own car according to the position information.
According to the information entertainment system, the vehicle owner can be connected with the remote server through WeChat, app and the like, after one-to-one binding is completed, information such as favorite information is set, for example, the information such as the favorite voices, songs and news information is selected, the server can push the corresponding entertainment information to the corresponding equipment system according to the selection setting of the user, and the user can hear the favorite information on the vehicle. Meanwhile, the entertainment information system of the invention also plays music, weather information, navigation and the like relatively according to the voice command of the client.
The WiFi hotspot service provided by the invention can provide more convenient and faster network service for passengers on the vehicle, thereby greatly improving the use experience of users.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (10)
1. A remote in-vehicle system supporting in-vehicle ethernet, comprising: the intelligent automobile diagnosis system comprises a main controller, a diagnosis controller, an intelligent gateway, a wireless communication module, a remote server and an intelligent terminal, wherein the main controller is respectively connected with the diagnosis controller, the intelligent gateway and the wireless communication module, the wireless communication module is connected with the remote server, the remote server is connected with the intelligent terminal, the intelligent gateway is connected with an automobile ECU through an Ethernet, and the diagnosis controller is respectively connected with the automobile ECU through a CAN bus, a K line and a LIN line.
2. The remote vehicle-mounted system supporting the vehicle-mounted ethernet according to claim 1, further comprising a CAN transceiver, a K transceiver, and a LIN transceiver, wherein said diagnostic controller is connected to said CAN bus via the CAN transceiver, said diagnostic controller is connected to said K line via the K transceiver, and said diagnostic controller is connected to said LIN line via the LIN transceiver.
3. The remote vehicle-mounted system supporting the vehicle-mounted Ethernet according to claim 1, further comprising a power management module, a positioning module, an off-chip storage module and a WiFi module, wherein the main controller is respectively connected with the power management module, the positioning module and the off-chip storage module, the main controller is connected with the wireless communication module through a USB, and the WiFi module is connected with the wireless communication module.
4. The Ethernet-enabled remote vehicle system of claim 1, further comprising an infotainment system, the infotainment system coupled to the intelligent gateway.
5. A remote vehicle-mounted system fault diagnosis method supporting vehicle-mounted Ethernet is characterized by comprising the following steps:
s1, when the vehicle has a fault, the service provider uses the remote server after receiving the request of the owner, firstly sends the key and the authentication information to the target vehicle, and after the equipment system returns the correct key information within the specified time, the remote server end can start the remote diagnosis service;
s2, the remote server end sends a diagnosis request to the target vehicle, after the system receives the request, the diagnosis controller selects a corresponding bus according to the instruction of the remote server, and the diagnosis controller communicates with the ECU of the vehicle through the controller and the transceiver to diagnose and read fault information;
s3, after being processed by the diagnosis controller, the fault information of the vehicle is sent to a remote server through a wireless communication module, the remote server automatically analyzes the fault information, feeds the analysis result back to a worker, and informs the worker of the fault analysis result;
and S4, if the driving safety is not influenced, the owner can automatically select proper time to maintain, and if the driving safety is influenced, the staff can provide road rescue and maintenance service.
6. The remote vehicle-mounted system fault diagnosis method supporting the vehicle-mounted Ethernet according to claim 5, wherein when the vehicle is running, the fault information of the vehicle is periodically read through the Ethernet, the CAN line and the K line and is transmitted to the remote server through the wireless communication module.
7. The remote vehicle-mounted system fault diagnosis method supporting vehicle-mounted Ethernet according to claim 5, characterized in that the control of the vehicle-mounted Ethernet comprises the following steps:
1. confirming that the vehicle-mounted Ethernet is in a receivable state;
2. establishing communication between an external Ethernet and a vehicle-mounted Ethernet, and keeping a refreshing data route;
3. the diagnosis information of the vehicle is accessed through the intelligent gateway and is uploaded to the remote server through the wireless communication module.
8. The remote vehicle-mounted system fault diagnosis method supporting vehicle-mounted Ethernet according to claim 5, wherein in step S3, the automatic analysis process is as follows: the remote server compares and matches the fault information data stream with fault code information stored in a fault information database, and analyzes and obtains a fault code, a fault description, a maintenance suggestion and a generation reason.
9. A remote vehicle-mounted system information acquisition method supporting a vehicle-mounted Ethernet is characterized in that a vehicle leasing company logs in a remote server through an authenticated account, then the remote server autonomously checks the running state of a corresponding vehicle and information of each sensor, when the vehicle runs, the vehicle runs through a main controller, a diagnosis controller and an intelligent gateway, the Ethernet, a CAN line, a LIN line and a K transceiver are communicated with each ECU or a domain controller, the running state of the vehicle is periodically read, various state information is acquired in real time, meanwhile, the information is transmitted to the remote server through a wireless communication module, the remote server comprehensively analyzes the vehicle information, and a user checks the vehicle information through the remote server.
10. A remote vehicle-mounted system remote upgrading method supporting vehicle-mounted Ethernet is characterized by comprising the following steps:
s1, the service provider logs in the remote server to set the upgrading requirement, and the remote server sets the upgrading to start;
s2, the remote server generates a secret key and communicates with the equipment system through the wireless communication module, and the remote server authenticates the equipment and encrypts the transmitted information;
s3, after the main controller receives the upgrading instruction of the remote server through the wireless communication module, the message is authenticated and the secret key is judged, and if the message is correct, the feedback message is sent to the server;
s4, the main controller judges the current upgrading state, and after success, the area corresponding to the upgrading instruction is stored outside the erase chip;
s5, the main controller and the remote server carry out encryption communication, the upgrade package issued by the server is stored in the corresponding area, and the file package is decrypted and verified after all upgrade files are received;
s6, if the upgrade package has no problem, selecting the idle time of the vehicle, and upgrading the corresponding electronic control unit;
s7, after the upgrade is finished, the equipment system feeds back the upgrade result to the remote server;
and S8, the remote server records the upgrading results of all the upgrading devices and pushes the upgrading results to related personnel.
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