CN113285861A - Vehicle data acquisition method based on intelligent central gateway - Google Patents
Vehicle data acquisition method based on intelligent central gateway Download PDFInfo
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- CN113285861A CN113285861A CN202110555691.1A CN202110555691A CN113285861A CN 113285861 A CN113285861 A CN 113285861A CN 202110555691 A CN202110555691 A CN 202110555691A CN 113285861 A CN113285861 A CN 113285861A
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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
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
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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
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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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- 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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Abstract
The invention relates to a vehicle data acquisition method based on an intelligent central gateway, in particular to a vehicle data acquisition method based on Ethernet bus connection of an intelligent central gateway GW and a vehicle-mounted network terminal TBOX, which comprises a CAN/LIN bus message monitoring, storing and packaging uploading method. The process comprises the steps that the intelligent central gateway GW periodically monitors CAN/LIN bus messages, when an event needing vehicle data acquisition occurs on the CAN/LIN bus (such as a vehicle breaks down), message data of all the CAN/LIN buses of the vehicle within t1 seconds before and t2 seconds after the event triggering moment (t 1+ t2 seconds in total) are stored immediately, the message data are sent to the vehicle-mounted internet terminal TBOX through an Ethernet bus after being packaged, and the vehicle-mounted internet terminal TBOX is uploaded to a cloud server through a 4G network so as to support a host factory to analyze the vehicle data online or downloaded. The vehicle data acquisition system has the advantages that when an event needing vehicle data acquisition occurs in a remote vehicle (such as a vehicle breaks down), a host factory can directly acquire the vehicle data at the event triggering moment from the cloud server for analysis, and a professional tool does not need to be carried by a delegation engineer to go to the field for reading, so that the real-time performance and convenience of 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.
Description
Technical Field
The invention relates to the technical field of automotive electronics, in particular to a vehicle data acquisition method based on an intelligent central gateway.
Background
With the rapid development of the automobile industry technology, the number of electronic control units on a vehicle is more and more, a functional control system is more and more complicated, and the probability of failure occurrence is also continuously increased. In a traditional application scenario, when a vehicle breaks down, a user often needs to stop at the side, and seeks for a road rescue service to support that the vehicle is dragged to a 4S store or an engineer carries a professional tool to go to the site to read fault data so as to investigate the fault reason.
However, for a vehicle with a long-distance accidental fault, the conventional vehicle data acquisition means may cause that important data information is not acquired in time and lost when the vehicle has a fault, so that the efficiency of vehicle fault diagnosis and problem analysis is reduced, and the time cost of a user and an engineer is increased.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a vehicle data acquisition method based on an intelligent central gateway, aiming at the above-mentioned defects of the prior art. When a remote vehicle has an event needing vehicle data acquisition (such as a vehicle breaks down), a host factory can directly acquire vehicle data at the event triggering moment from a cloud server for analysis, and a commission engineer is not required to carry a professional tool to go to a field for reading, so that the real-time performance and the convenience of vehicle data acquisition are greatly improved, and the defect that the vehicle data of a traditional vehicle data acquisition method is difficult to acquire 'sporadic' event vehicle data is overcome. The specific technical scheme is as follows:
a vehicle data acquisition method based on an intelligent central gateway comprises the following steps: the intelligent central gateway GW and the vehicle-mounted internet terminal TBOX realize the acquisition of vehicle data based on the connection of an Ethernet bus, including the monitoring, the storage and the packaging uploading of CAN/LIN bus message data; the process comprises the following steps:
(1) the intelligent central gateway GW periodically monitors CAN/LIN bus message data;
(2) the intelligent central gateway GW monitors that an event needing vehicle data acquisition occurs on the CAN/LIN bus; storing the total t1+ t2 seconds of message data before t1 seconds and after t2 seconds of the event triggering time of all CAN/LIN buses of the vehicle;
(3) and the intelligent central gateway GW packages the stored data and then sends the packaged data to the vehicle-mounted internet terminal TBOX through an Ethernet bus.
(4) And the vehicle-mounted internet terminal TBOX is uploaded to a cloud server through a 4G network so as to support the host factory to analyze the vehicle data online or downloaded.
Furthermore, the intelligent central gateway GW needs to have the function of periodically monitoring and storing CAN/LIN bus message data, including a Body-CAN, a Chassis chasis-CAN, an internet-based telematics-CAN, a power PowerTrain-CAN, and an extensible additional CAN bus and an LIN bus in a vehicle network architecture.
Further, the vehicle data collection event monitored by the intelligent central gateway GW includes: triggering a vehicle fault signal, prolonging the vehicle sleeping time and actively requesting by the vehicle-mounted internet terminal TBOX.
Further, the meaning of each event is:
triggering a vehicle fault signal, and monitoring that any one signal in a preset fault signal list is set by the intelligent central gateway GW;
the vehicle sleep time is too long, and after the intelligent central gateway GW monitors that the vehicle is powered off, the message data of the CAN/LIN bus is continuously sent for t3 minutes;
the vehicle-mounted internet terminal TBOX actively requests, and after receiving a vehicle data acquisition instruction sent by the cloud server, the vehicle-mounted internet terminal TBOX actively sends a vehicle data acquisition request to the intelligent central gateway GW through the CAN bus.
Further, the intelligent central gateway GW monitors and stores data according to the original message period of the CAN/LIN bus message, and needs to support caching of bus message data within the latest t1 seconds, where the bus message data includes a conventional application message and a network management message, and if a message has a routing relationship between network segments, only the message of the source network segment is collected, so as to avoid data duplication.
The vehicle data acquisition method based on the intelligent central gateway has the advantages that when the event needing vehicle data acquisition occurs to a remote vehicle (such as a vehicle goes wrong), a host factory can directly acquire the vehicle data at the event triggering moment from the cloud server for analysis, and an engineer does not need to carry a professional tool to read the vehicle data on site, so that the real-time performance and convenience of 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.
Drawings
FIG. 1 is a system diagram of a vehicle data collection method of the present invention;
FIG. 2 is a flow chart of a vehicle data collection method of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, a system block diagram of a vehicle data acquisition method based on an intelligent central gateway is provided, which includes an intelligent central gateway GW and a vehicle-mounted internet terminal TBOX. The intelligent central gateway GW is responsible for message routing of Electronic Control Units (ECUs) between vehicle CAN/LIN network segments and is connected with the vehicle-mounted networking terminal TBOX through a telematics-CAN bus and an Ethernet bus. And the vehicle-mounted internet terminal TBOX is in communication with the cloud server through a 4G network.
As shown in fig. 2, a flowchart of a vehicle data acquisition method based on an intelligent central gateway is provided to illustrate an overall process from vehicle wake-up to the vehicle internet access terminal TBOX uploading vehicle message data to a cloud server through a 4G network.
In specific implementation, the intelligent central gateway GW and the vehicle-mounted internet terminal TBOX realize a vehicle data acquisition method based on Ethernet bus connection, including monitoring, storing, and packaging and uploading methods of CAN/LIN bus message data.
In specific implementation, the intelligent central gateway GW periodically monitors the vehicle CAN/LIN bus message data after the vehicle is awakened, and continuously caches the message data within the latest t1 seconds. When the intelligent central gateway GW monitors that one of vehicle data acquisition events (vehicle fault signal triggering, vehicle dormancy time overlong and vehicle-mounted internet access terminal TBOX active request) is triggered, message data within t1 seconds before the event triggering time and within t2 seconds after the event triggering time (t 1+ t2 seconds in total) are packaged and sent to the vehicle-mounted internet access terminal TBOX through an Ethernet bus, and the vehicle-mounted internet access terminal TBOX is uploaded to a cloud server through a 4G network so as to support a host factory to analyze vehicle data online or downloaded.
During specific implementation, through the vehicle data acquisition method based on the intelligent central gateway, when a remote vehicle has an event needing vehicle data acquisition (if the vehicle breaks down), a host factory can directly acquire vehicle data at the moment of event triggering at a cloud server for analysis, and does not need to appoint an engineer to carry a professional tool to go to the site for reading, so that the instantaneity and the convenience of 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.
In specific implementation, the intelligent central gateway GW needs to have the function of periodically monitoring and storing CAN/LIN bus message data, including a Body-CAN, a Chassis chasis-CAN, an internet-based telematics-CAN, a power PowerTrain-CAN, and an extensible additional CAN bus and an LIN bus in a vehicle network architecture.
Furthermore, in this embodiment, the method further includes:
the vehicle data acquisition event monitored by the intelligent central gateway GW comprises the following steps: triggering a vehicle fault signal, prolonging the vehicle sleeping time and actively requesting by the vehicle-mounted internet terminal TBOX. Wherein the meaning of each event is: triggering a vehicle fault signal, wherein the intelligent central gateway GW monitors that any one signal in a preset fault signal list is set (a vehicle is in fault); the vehicle sleep time is too long, and after the intelligent central gateway GW monitors that the vehicle is powered off, the message data of the CAN/LIN bus is continuously sent for t3 minutes; the vehicle-mounted internet terminal TBOX actively requests, and after receiving a vehicle data acquisition instruction sent by the cloud server, the vehicle-mounted internet terminal actively sends the vehicle data acquisition request to the intelligent central gateway GW through the CAN bus.
The intelligent central gateway GW monitors and stores data according to the original message period of the CAN/LIN bus message, and needs to support caching of bus message data within the latest t1 seconds, wherein the bus message data comprise a conventional application message and a network management message. If the message has a routing relation among the network segments, only the message of the source network segment is collected to avoid data repetition.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (5)
1. A vehicle data acquisition method based on intelligent central gateway, characterized by that, intelligent central gateway GW and vehicle carried network terminal TBOX realize the collection of the vehicle data on the basis of the bus connection of Ethernet, include CAN/LIN bus message data monitoring, storage and packing upload; the process comprises the following steps:
(1) the intelligent central gateway GW periodically monitors CAN/LIN bus message data;
(2) the intelligent central gateway GW monitors that an event needing vehicle data acquisition occurs on the CAN/LIN bus; storing the total t1+ t2 seconds of message data before t1 seconds and after t2 seconds of the event triggering time of all CAN/LIN buses of the vehicle;
(3) the intelligent central gateway GW packages the stored data and sends the packaged data to the vehicle-mounted internet terminal TBOX through an Ethernet bus;
(4) and the vehicle-mounted internet terminal TBOX is uploaded to a cloud server through a 4G network so as to support the host factory to analyze the vehicle data online or downloaded.
2. The method as claimed in claim 1, wherein the intelligent central gateway GW needs to have a function of periodically monitoring and storing CAN/LIN bus message data, including a Body-CAN, a Chassis chasis-CAN, an internet-based telematics-CAN, a power PowerTrain-CAN, and an extensible additional CAN bus and an LIN bus in a vehicle network architecture.
3. The intelligent central gateway based vehicle data collection method according to claim 2, wherein the vehicle data collection events monitored by the intelligent central gateway GW comprise: triggering a vehicle fault signal, prolonging the vehicle sleeping time and actively requesting by the vehicle-mounted internet terminal TBOX.
4. The intelligent central gateway-based vehicle data acquisition method according to claim 3, wherein: the meaning of each event is:
triggering a vehicle fault signal, and monitoring that any one signal in a preset fault signal list is set by the intelligent central gateway GW;
the vehicle sleep time is too long, and after the intelligent central gateway GW monitors that the vehicle is powered off, the message data of the CAN/LIN bus is continuously sent for t3 minutes;
the vehicle-mounted internet terminal TBOX actively requests, and after receiving a vehicle data acquisition instruction sent by the cloud server, the vehicle-mounted internet terminal TBOX actively sends a vehicle data acquisition request to the intelligent central gateway GW through the CAN bus.
5. The vehicle data collection method based on intelligent central gateway as claimed in claim 3, wherein said intelligent central gateway GW monitors and stores data according to the original message period of CAN/LIN bus message, and needs to support caching of bus message data within the latest t1 seconds, wherein the bus message data includes normal application message and network management message, if the message has routing relationship between network segments, only collecting the message of source network segment to avoid data duplication.
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Cited By (7)
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| CN114120481A (en) * | 2021-11-19 | 2022-03-01 | 北京经纬恒润科技股份有限公司 | CAN data acquisition method, device and system |
| CN114655139A (en) * | 2022-03-07 | 2022-06-24 | 北京汽车股份有限公司 | Full-vehicle data uploading system and method based on precise time control and vehicle |
| CN114710527A (en) * | 2022-03-25 | 2022-07-05 | 重庆长安汽车股份有限公司 | Acquisition system and method of distributed intelligent driving data and readable storage medium |
| CN115221161A (en) * | 2021-11-25 | 2022-10-21 | 广州汽车集团股份有限公司 | Whole vehicle buried point data acquisition method and T-BOX |
| CN115273271A (en) * | 2022-06-27 | 2022-11-01 | 重庆长安汽车股份有限公司 | System and method for collecting vehicle data based on vehicle entertainment host |
| CN115277287A (en) * | 2022-06-17 | 2022-11-01 | 重庆长安汽车股份有限公司 | Configurable CAN message acquisition method and system based on Ethernet |
| CN116471298A (en) * | 2023-03-07 | 2023-07-21 | 广州汽车集团股份有限公司 | Data acquisition method, data acquisition system based on distributed architecture and vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114710527A (en) * | 2022-03-25 | 2022-07-05 | 重庆长安汽车股份有限公司 | Acquisition system and method of distributed intelligent driving data and readable storage medium |
| CN115277287A (en) * | 2022-06-17 | 2022-11-01 | 重庆长安汽车股份有限公司 | Configurable CAN message acquisition method and system based on Ethernet |
| CN115273271A (en) * | 2022-06-27 | 2022-11-01 | 重庆长安汽车股份有限公司 | System and method for collecting vehicle data based on vehicle entertainment host |
| CN115273271B (en) * | 2022-06-27 | 2023-07-11 | 重庆长安汽车股份有限公司 | System and method for collecting vehicle data based on vehicle entertainment host |
| CN116471298A (en) * | 2023-03-07 | 2023-07-21 | 广州汽车集团股份有限公司 | Data acquisition method, data acquisition system based on distributed architecture and vehicle |
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