CN108923933A - The working method of server, the upgrade method of car-mounted terminal and system - Google Patents
The working method of server, the upgrade method of car-mounted terminal and system Download PDFInfo
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- CN108923933A CN108923933A CN201810762223.XA CN201810762223A CN108923933A CN 108923933 A CN108923933 A CN 108923933A CN 201810762223 A CN201810762223 A CN 201810762223A CN 108923933 A CN108923933 A CN 108923933A
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- Prior art keywords
- car
- mounted terminal
- server
- upgrade
- upgrade package
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3247—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving digital signatures
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
- H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
-
- 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
- H04L67/125—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks involving control of end-device applications over a network
-
- 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
- H04L67/14—Session management
- H04L67/141—Setup of application sessions
-
- 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
- H04L67/34—Network arrangements or protocols for supporting network services or applications involving the movement of software or configuration parameters
Abstract
The present invention provides a kind of working method of server, includes the following steps：Server release upgrade packet；Server judges whether the communication channel of car-mounted terminal opens；If the communication channel of the car-mounted terminal has turned on, server encrypts the upgrade package, and gives encrypted upgrade package to the car-mounted terminal by the traffic channel by the way of safe transmission.The present invention passes through the function of coded communication module and feedback check module, rogue attacks are avoided to distort the malice of upgrade package or installation kit, and then avoid illegal invasion of the upgrade package being tampered to car-mounted terminal, power control unit, car owner's individual privacy and information entertainment etc., eliminating in motor vehicle remote upgrade procedure has security risk, has ensured the safety and reliability from aerial downloading upgrade package.
Description
Technical field
The present invention relates to vehicle communication technical field more particularly to a kind of working methods of server, car-mounted terminal
Upgrade method and system.
Background technique
As motor vehicle electronic degree is higher and higher, either vehicle meets with software fault or software upgrading, at present
The line mode of recalling of putting up at an inn be not the optimal selection for meeting user experience.In order to reduce cost, promote user experience,
OTA (Over-the-Air) downloads upgrade technique into the required skill in intelligent machine motor-car epoch in the air.But also just because of
Vehicle and vehicle, vehicle and internet, vehicle and road-based infrastructure networking degree gradually deeply, potential invasion point and loophole also at
The growth of geometry character, therefore vehicle network safety problem has arrived and cannot be neglected stage.OTA is considered being expected to solve future
The network security problem of intelligent networking motor vehicle.Once motor vehicle network attack occurs, it is desirable to be mended by OTA Remote Installation
Fourth and antivirus applet, or even realize and remotely close software under attack, reduce the influence of safety accident.But often ignore
How support vehicles network security, it is often more important that, with the popularization and application of 5G technology, motor vehicle remote upgrade server or
TSP (Telematics Service Provider) platform will be in face of millions of grades even millions vehicle on-board terminal
Therefore secure accessing, the demand of large-scale concurrent access information transmission in software upgrade process, pass through the information of OTA transmission
It is attacked and is greatly increased a possibility that distorting.
In view of this, there is an urgent need to design a kind of new car-mounted terminal telesecurity upgrade method and guard system, so as to
Ensure the safety and reliability in aerial downloading escalation process.
Summary of the invention
The purpose of the present invention is to solve there are problems that security risk in motor vehicle remote upgrade procedure.
To achieve the above object, the first scheme of the invention is to provide a kind of working method of server, including following
Step：Server release upgrade packet；Server judges whether the communication channel of car-mounted terminal opens；If the car-mounted terminal is logical
Letter channel has turned on, and server encrypts the upgrade package, and by encrypted upgrade package by the way of safe transmission
The car-mounted terminal is given by the traffic channel.
Further, if the communication channel of the car-mounted terminal has turned on, server adds the upgrade package
It is close, and by encrypted upgrade package by the way of safe transmission by the traffic channel give the car-mounted terminal step
Suddenly it specifically includes：If the communication channel has turned on, server first sends information and carries out identity legitimacy verifying to car-mounted terminal,
If identity is legal, server encrypts the upgrade package, and encrypted upgrade package is led to by the way of safe transmission
The traffic channel is crossed to the car-mounted terminal.
Further, if the identity is legal, server encrypts the upgrade package, and by encrypted upgrade package
The step of giving the car-mounted terminal by the traffic channel by the way of safe transmission specifically includes：If identity is closed
Method, server send diagnostic message and carry out failure and Hole Detection to car-mounted terminal, judge whether car-mounted terminal needs to upgrade；If
Judge that car-mounted terminal needs to upgrade, server encrypts the upgrade package, and encrypted upgrade package is passed using safety
Defeated mode gives the car-mounted terminal by the traffic channel.
Further, the method also includes following steps：If the communication channel is not opened, server is to car-mounted terminal
The cell phone application of client sends the information of upgrade tip.
Further, the method also includes following steps：If the upgrading of the car-mounted terminal is completed, the server
The characteristic information for receiving the upgrade package of the car-mounted terminal transmission verifies what whether the upgrade package stored with server
Upgrade package feature is consistent.
To achieve the above object, second scheme of the invention is to provide a kind of upgrade method of car-mounted terminal, including with
Lower step：
Server release upgrade packet；Server judges whether the communication channel of car-mounted terminal opens；If the car-mounted terminal
Communication channel have turned on, server encrypts the upgrade package, and by encrypted upgrade package using safe transmission
Mode gives the car-mounted terminal by the traffic channel；After car-mounted terminal receives the upgrade package, into upgrading shape
State.
Further, the method also includes following steps：After the completion of the upgrading of car-mounted terminal, car-mounted terminal is to server
Transmission includes the characteristic information of the upgrade package；The server judges the upgrade package of the characteristic information and server storage
Whether characteristic information is consistent；If the characteristic information and the upgrade package characteristic information that server stores are inconsistent；It is described vehicle-mounted
Aforementioned upgrade step is repeated after upgrade package described in system-kill.
Further, the method also includes following steps：After the completion of the upgrading of the car-mounted terminal, judge described vehicle-mounted
Whether terminal can operate normally；If the car-mounted terminal can not operate normally, the onboard system deletes the upgrade package
After repeat aforementioned upgrade step.
Further, the method also includes following steps：If the onboard system repeats aforementioned upgrade step 3 times
After fail, the car-mounted terminal terminates upgrading.
To achieve the above object, the third scheme of the invention is to provide a kind of vehicle terminal upgrading system, including：Processing
Device, memory and communication unit, the processor couple the memory and the communication unit；The memory is stored with
The information of upgrade package, the communication unit are transmitted for information, and the processor executes any of the above-described service at work
The upgrade method of the working method of device or any car-mounted terminal.
The beneficial effects of the present invention are：The present invention passes through the function of coded communication module and feedback check module, avoids
Rogue attacks distort the malice of upgrade package or installation kit, and then avoid the upgrade package being tampered to car-mounted terminal, power
The illegal invasion of control unit, car owner's individual privacy and information entertainment etc., eliminates and deposits in motor vehicle remote upgrade procedure
The security risk the problem of, the safety and reliability from aerial downloading upgrade package has been ensured.
Detailed description of the invention
In order to illustrate the embodiments of the present invention more clearly or technical solution, required use in being described below to embodiment
Attached drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill of field, without creative efforts, it can also be obtained according to these attached drawings others
Attached drawing, wherein：
Fig. 1 is the structural schematic diagram of remote upgrade security protection system provided by the invention；
Fig. 2 is the functional overview flow chart of remote upgrade security system provided by the invention；
Fig. 3 is a kind of flow diagram of embodiment of remote upgrade security system provided by the invention.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
The first scheme of the invention is to provide a kind of working method of server, includes the following steps：Server publication
Upgrade package；Server judges whether the communication channel of car-mounted terminal opens；If the communication channel of the car-mounted terminal has turned on, clothes
Business device encrypts the upgrade package, and encrypted upgrade package is passed through the communication channel by the way of safe transmission
It is transferred to the car-mounted terminal.
Second scheme of the invention is to provide a kind of upgrade method of car-mounted terminal, includes the following steps：Server hair
Cloth upgrade package；Server judges whether the communication channel of car-mounted terminal opens；If the communication channel of the car-mounted terminal has turned on,
Server encrypts the upgrade package, and encrypted upgrade package is believed by the way of safe transmission by the communication
Road is transferred to the car-mounted terminal；After car-mounted terminal receives the upgrade package, into upgrade status.
Below in conjunction with Fig. 1-Fig. 3 to being described in detail.Referring to Fig. 1, it is remote upgrade safety provided by the invention
The structural schematic diagram of guard system.The security protection system includes that TSP platform/OTA upgrade server (is referred to as in the present embodiment
For server 110), COMSEC module 120 and car-mounted terminal 130.The wherein server 110 network by wireless communication
It is connected with car-mounted terminal 130, COMSEC module 120 provides safe information transfer channel for communication network, is directed to
The transmission of coded communication and feedback validation information.
The car-mounted terminal 130 includes vehicle-carrying communication unit T-BOX 131, gateway 132 and all kinds of ECU 133.Specifically
, remote server 110 is connect by wireless network with vehicle-carrying communication unit T-BOX 131, and sends information to gateway
132, diagnostic message or upgrade information etc. are sent to each ECU 133 by gateway 132.
Referring to Fig. 2, it is the functional overview flow chart of remote upgrade security system provided by the invention.The safety is anti-
Protecting system is mainly included in line monitoring modular 210, authentication authentication module 220, remote diagnostic module 230, coded communication biography
Defeated module 240, feedback validation module 250.
Specifically, the server 110 by on-line checking module 210 to vehicle termination send test information judge it is vehicle-mounted
Whether the communication channel of terminal opens；
The server 110 carries out identity legitimacy verifying to car-mounted terminal by authentication module 220.Specifically,
Server 110 identifies vehicle according to car-mounted terminal built-in information, establishes the unique identification value of car-mounted terminal updating apparatus；
The server 110 carries out failure and Hole Detection to car-mounted terminal by remote diagnostic module 230, including ECU,
The loophole of firmware and software etc. and the query information of version, it is determined whether need to send upgrade package order；
The remote server 110 encrypts upgrade package by coded communication module 240, and by encrypted liter
Grade packet gives the car-mounted terminal by the traffic channel by the way of safe transmission.
Further, if the communication channel is not opened, server 110 is sent to the cell phone application of 130 client of car-mounted terminal
The information of upgrade tip.
Further, in order to verify the validity and integrality of upgrade package, the car-mounted terminal 130 leads to after the completion of upgrading
Cross feedback check module 250, upgrade package characteristic information has been downloaded in transmission, for verify whether with the storage of remote server 110
Corresponding upgrade package feature is consistent.
Further, whether effective in order to verify upgrading, the car-mounted terminal 130 after the completion of upgrading, sentence by operation terminal
Whether the car-mounted terminal that breaks can operate normally.
Below by taking Fig. 3 as an example, the working method of server and the upgrade method of car-mounted terminal is described in detail.
Step S1,110 release upgrade packet of server, goes to step S2；
Step S2, server by utilizing on-line checking module 210 send online detection information, judge vehicle-carrying communication network channel
It is whether in the open state, if it is not, step S3 is gone to, if so, going to S5；
Step S3 sends upgrade tip information to the cell phone application of 130 user of car-mounted terminal by server 110, goes to step
Rapid S4；
Step S4 goes to step S5, if disagreeing, terminates this upgrading if agreeing to open terminal communications channel；
Step S5, server 110 send information by authentication module 220 and carry out identity legitimacy verifying to terminal,
It determines vehicle, obtains unique sign value, go to step S6；
Step S6, server 110 send diagnostic message by remote diagnostic module 230 and include to vehicle termination software and hardware
ECU, entertainment systems, firmware, software etc. carry out failure and Hole Detection, go to step S7；
Step S7, user receive upgrade tip information, it is determined whether upgrading are executed, if so, step S8 is gone to, if it is not, knot
Shu Benci upgrading；
Step S8：User agrees to that upgrading, confirmation receive upgrade package, go to step S9；
Step S9：Server 110 is digitally signed encryption to upgrade package by coded communication module 240, and provides peace
The communications channel encrypted entirely, goes to S10；
Step S10：Car-mounted terminal 130 completes the reception and downloading of upgrade package, by feedback compensation module 250 to upgrade package
Completeness and efficiency verified, if upgrade package is completely effective, be not tampered with, go to step S12, otherwise, go to S11；
S11：130 display screen of car-mounted terminal pop-up upgrading failure information, and carry out again attempting to upgrade, go back to step S8；
If beyond repeatedly such as 3 upgradings failure, exiting, terminating upgrading；
S12：Car-mounted terminal 130 executes the installation process of upgrade package, goes to step S13；
S13：It after being installed, verifies whether to work normally, if can operate normally, goes to step S14, otherwise,
Go to S11；
S14：By 130 display screen of car-mounted terminal, installation successful information is prompted, and deletes legacy version.
Car-mounted terminal telesecurity upgrade method and security protection system provided by the invention, server 110 can be direct
Long-range connection is established with the car-mounted terminal 130 by 2G/3G//4G/5G communication network 120, by carrying out to upgrade package
Digital signature and communication channel is encrypted safely, and increases the feedback check link of upgrade package, ensure through OTA downloading liter
The legitimacy and reliability of grade packet avoid tampering of the hacker by attack transmission network to upgrade package, therefore the vehicle
Mounted terminal remote upgrade method is safe and reliable.
Based on above-mentioned unified design, the present invention also provides a kind of vehicle terminal upgrading systems, including：Processor, memory
And communication unit, the processor couple the memory and the communication unit；The memory is stored with program data
And the information of upgrade package, the communication unit for information transmit, the processor execute at work described program data with
Realize the working method of any server of claim 1-5 or the upgrading side of any car-mounted terminal of claim 6-9
Method.Wherein, the working method of server and the above-mentioned detailed description of the upgrade method of car-mounted terminal, details are not described herein again.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (10)
1. the working method of server, which is characterized in that include the following steps：
Server release upgrade packet；
Server judges whether the communication channel of car-mounted terminal opens；
If the communication channel of the car-mounted terminal has turned on, server encrypts the upgrade package, and by encrypted liter
Grade packet gives the car-mounted terminal by the traffic channel by the way of safe transmission.
2. the working method of server according to claim 1, which is characterized in that if the communication of the car-mounted terminal
Channel has turned on, and server encrypts the upgrade package, and encrypted upgrade package is led to by the way of safe transmission
The traffic channel is crossed to specifically include to the step of car-mounted terminal：
If the communication channel has turned on, server first sends information and carries out identity legitimacy verifying to car-mounted terminal,
If identity is legal, server encrypts the upgrade package, and encrypted upgrade package is used to the side of safe transmission
Formula gives the car-mounted terminal by the traffic channel.
3. the working method of server according to claim 2, which is characterized in that if the identity is legal, server pair
The upgrade package is encrypted, and encrypted upgrade package is given by the way of safe transmission by the traffic channel
The step of car-mounted terminal, specifically includes：
If identity is legal, server sends diagnostic message and carries out failure and Hole Detection to car-mounted terminal, judges that car-mounted terminal is
It is no to need to upgrade；
If judging, car-mounted terminal needs to upgrade, and server encrypts the upgrade package, and encrypted upgrade package is used
The mode of safe transmission gives the car-mounted terminal by the traffic channel.
4. the working method of server according to claim 1, which is characterized in that further comprising the steps of：
If the communication channel is not opened, server sends the information of upgrade tip to the cell phone application of car-mounted terminal client.
5. the working method of server according to claim 1, which is characterized in that further comprising the steps of：
If the upgrading of the car-mounted terminal is completed, the server receives the upgrade package of the car-mounted terminal transmission
Whether consistent with the upgrade package feature of server storage characteristic information verifies the upgrade package.
6. the upgrade method of car-mounted terminal, which is characterized in that include the following steps：
Server release upgrade packet；
Server judges whether the communication channel of car-mounted terminal opens；
If the communication channel of the car-mounted terminal has turned on, server encrypts the upgrade package, and by encrypted liter
Grade packet gives the car-mounted terminal by the traffic channel by the way of safe transmission；
After car-mounted terminal receives the upgrade package, into upgrade status.
7. the upgrade method of car-mounted terminal according to claim 6, which is characterized in that further comprising the steps of：
After the completion of the upgrading of car-mounted terminal, car-mounted terminal includes the characteristic information of the upgrade package to server transport；
Whether the upgrade package characteristic information that the server judges that the characteristic information and server store is consistent；
If the characteristic information and the upgrade package characteristic information that server stores are inconsistent；
The onboard system repeats aforementioned upgrade step after deleting the upgrade package.
8. the upgrade method of car-mounted terminal according to claim 7, which is characterized in that further comprising the steps of：
After the completion of the upgrading of the car-mounted terminal, judge whether the car-mounted terminal can operate normally；
If the car-mounted terminal can not operate normally,
The onboard system repeats aforementioned upgrade step after deleting the upgrade package.
9. the upgrade method of car-mounted terminal according to claim 7 or 8, which is characterized in that further comprising the steps of：
If the onboard system fails after repeating aforementioned upgrade step 3 times, the car-mounted terminal terminates upgrading.
10. vehicle terminal upgrading system, which is characterized in that including：Processor, memory and communication unit, the processor
Couple the memory and the communication unit；The memory is stored with the information of program data and upgrade package, the communication
Unit is transmitted for information, and the processor executes described program data at work to realize that claim 1-5 is any described
The upgrade method of any car-mounted terminal of working method or claim 6-9 of server.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810762223.XA CN108923933A (en) | 2018-07-12 | 2018-07-12 | The working method of server, the upgrade method of car-mounted terminal and system |
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| CN201810762223.XA CN108923933A (en) | 2018-07-12 | 2018-07-12 | The working method of server, the upgrade method of car-mounted terminal and system |
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| CN110297654A (en) * | 2019-07-05 | 2019-10-01 | 爱驰汽车有限公司 | Firmware upgrade method, system, equipment and the medium of electric car |
| CN110378105A (en) * | 2019-07-02 | 2019-10-25 | 广州小鹏汽车科技有限公司 | Security upgrading method, system, server and car-mounted terminal |
| CN110597229A (en) * | 2019-09-24 | 2019-12-20 | 中国第一汽车股份有限公司 | Vehicle diagnosis mutual exclusion method and device, vehicle and storage medium |
| CN110727455A (en) * | 2019-09-12 | 2020-01-24 | 深圳市元征科技股份有限公司 | Software remote upgrading method and related equipment |
| CN110888414A (en) * | 2019-11-25 | 2020-03-17 | 一汽解放汽车有限公司 | Test method for upgrading vehicle controller |
| WO2020211016A1 (en) * | 2019-04-17 | 2020-10-22 | 华为技术有限公司 | Device upgrade method and related device |
| CN111895610A (en) * | 2020-08-07 | 2020-11-06 | 上海昶音通讯科技有限公司 | Digital display and upgrading method |
| CN112328271A (en) * | 2019-07-31 | 2021-02-05 | 株洲中车时代电气股份有限公司 | Vehicle-mounted equipment software upgrading method and system |
| CN113114729A (en) * | 2021-03-22 | 2021-07-13 | 一汽奔腾轿车有限公司 | Verification system and method for OTA reliability |
| CN113468522A (en) * | 2021-07-19 | 2021-10-01 | 泰安北航科技园信息科技有限公司 | Detection system for information security of vehicle-mounted OTA (over the air) upgrade server |
| CN113525263A (en) * | 2020-04-14 | 2021-10-22 | 北京新能源汽车股份有限公司 | Vehicle control system and car |
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| CN113992709A (en) * | 2021-10-12 | 2022-01-28 | 北京理工新源信息科技有限公司 | Intelligent vehicle-mounted early warning terminal equipment based on 5G communication |
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| WO2020211016A1 (en) * | 2019-04-17 | 2020-10-22 | 华为技术有限公司 | Device upgrade method and related device |
| CN112543927B (en) * | 2019-04-17 | 2023-03-24 | 华为技术有限公司 | Equipment upgrading method and related equipment |
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| CN110597229A (en) * | 2019-09-24 | 2019-12-20 | 中国第一汽车股份有限公司 | Vehicle diagnosis mutual exclusion method and device, vehicle and storage medium |
| CN110888414A (en) * | 2019-11-25 | 2020-03-17 | 一汽解放汽车有限公司 | Test method for upgrading vehicle controller |
| CN113525263A (en) * | 2020-04-14 | 2021-10-22 | 北京新能源汽车股份有限公司 | Vehicle control system and car |
| CN113525263B (en) * | 2020-04-14 | 2024-03-19 | 北京新能源汽车股份有限公司 | Vehicle control system and automobile |
| CN111895610B (en) * | 2020-08-07 | 2022-02-01 | 上海昶音通讯科技有限公司 | Digital display and upgrading method |
| CN111895610A (en) * | 2020-08-07 | 2020-11-06 | 上海昶音通讯科技有限公司 | Digital display and upgrading method |
| CN113114729A (en) * | 2021-03-22 | 2021-07-13 | 一汽奔腾轿车有限公司 | Verification system and method for OTA reliability |
| CN113468522A (en) * | 2021-07-19 | 2021-10-01 | 泰安北航科技园信息科技有限公司 | Detection system for information security of vehicle-mounted OTA (over the air) upgrade server |
| CN113596755A (en) * | 2021-07-22 | 2021-11-02 | 上汽通用五菱汽车股份有限公司 | Vehicle-mounted system upgrading method, vehicle and readable storage medium |
| CN113992709A (en) * | 2021-10-12 | 2022-01-28 | 北京理工新源信息科技有限公司 | Intelligent vehicle-mounted early warning terminal equipment based on 5G communication |
| CN113992709B (en) * | 2021-10-12 | 2023-11-03 | 北京理工新源信息科技有限公司 | Intelligent vehicle-mounted early warning terminal equipment based on 5G communication |
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Application publication date: 20181130 |