Secure data exchange method and system for electric vehicle and charging and exchanging power station
A technology for electric vehicles and charging and swapping stations, applied in electric vehicles, transmission systems, battery circuit devices, etc., can solve the problems of hacking, destruction, tampering or stealing data, and achieve the effect of protecting interests
Active Publication Date: 2011-05-04
STATE GRID CORP OF CHINA +2
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Problems solved by technology
For charging and swapping stations, since they may be deployed in residential areas, there is also the risk of being damaged, tampered with or stolen by malicious users, and there is an interface between the smart grid and the public network, which may also become a way for hackers to intrude
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[0038] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.
[0039] In order to prevent malicious users from tampering with the identification information of electric vehicles or destroying charging and swapping stations, it is necessary to adopt a method to detect whether the status of electric vehicles and charging and swapping stations is normal, so as to take timely measures to record abnormal situations, issue alarms and not provide charging and swapping stations. Handling measures such as power exchange services.
[0040] The inventor noticed that some core components are usually included in electric vehicles and charging and swapping stations, that is, components related to computing processing, such as battery version information in electric vehicles, device codes, and registration of devices or chips on the device bus of the battery status monitoring system Addresses, s...
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The invention relates to a secure data exchange method for an electric vehicle and a charging and exchanging power station. The method comprises the following steps that: the electric vehicle transmits self digitally signed integrity information to the charging and exchanging power station, acquires the integrity information of the charging and exchanging power station and submits the integrity information of the charging and exchanging power station to a security information management centre; the charging and exchanging power station submits the integrity information transmitted by the electric vehicle to the security information management centre and submits the digitally signed integrity information to the electric vehicle; the security information management centre authenticates the integrity information and feeds an authentication result back; and when the authentication result is coincident, connection is established between the electric vehicle and the charging and exchanging power station, and the electric vehicle and the charging and exchanging power station exchange data. The invention also relates to the security information management centre and a secure data exchange system. The security of the electric vehicle and the charging and exchanging power station is verified through the equipment integrity information, so that the electric vehicle and the charging and exchanging power station, which are in normal state, are guaranteed to perform normal data exchange and charging and exchanging operation; and then the benefits of a user and a service provider are guaranteed.
Description
technical field [0001] The invention relates to the field of data security of smart grids, in particular to a method for exchanging safety data between an electric vehicle and a charging and swapping station, a safety information management center and a safety data exchange system. Background technique [0002] As a smart device, electric vehicles have a need for data interaction with the smart grid. The smart grid can not only transmit current, but also send data, control power information in real time and adjust the relationship between supply and demand, and these data may become the target of malicious users. [0003] For electric vehicles, some malicious users may tamper with the identification information of electric vehicles to defraud free services of charging and swapping stations. For charging and swapping stations, because they may be deployed in residential areas, there is also the risk of being damaged, tampered with or stolen by malicious users, and the interf...
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IPC IPC(8): H04L29/06H04L9/32H02J7/00
Inventor 王相勤胡江溢贾俊国曲亚东郑晓崑高昆仑赵保华赵婷李凌邱进煊
Owner STATE GRID CORP OF CHINA
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