CN106329585B - Wireless charging authentication method and device - Google Patents
Wireless charging authentication method and device Download PDFInfo
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- CN106329585B CN106329585B CN201510347183.9A CN201510347183A CN106329585B CN 106329585 B CN106329585 B CN 106329585B CN 201510347183 A CN201510347183 A CN 201510347183A CN 106329585 B CN106329585 B CN 106329585B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
- Y02T90/167—Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
- Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
- Y04S30/14—Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing
Abstract
The invention discloses a wireless charging authentication method, which comprises the following steps: acquiring first identification information corresponding to vehicle-mounted equipment and second identification information corresponding to charging equipment; generating verification information according to the first identification information and the second identification information; and sending the verification information to a preset server so that the preset server can authenticate the electric vehicle according to the verification information. The invention also discloses a wireless charging authentication device. When a user changes the charging equipment corresponding to a certain vehicle-mounted device, namely the user changes the binding relationship between the first identification information and the second identification information, the check information received by the preset server cannot be matched with the preset check information, so that the preset server cannot complete the authentication of the electric vehicle, the wireless charging system can effectively identify whether the preset binding relationship is met between the vehicle-mounted device of the electric vehicle and the charging equipment when the electric vehicle is authenticated, and the electric vehicle is more conveniently managed.
Description
Technical Field
The invention relates to the technical field of wireless charging of electric vehicles, in particular to a wireless charging authentication method and device.
Background
The increasing number of automobiles puts a high demand on energy mainly comprising petroleum and natural gas, while petrochemical energy is exhausted, and the oil price is high in the long term. Meanwhile, air pollution caused by automobile exhaust is getting more and more serious.
The electric automobile is driven by a motor to run by taking a vehicle-mounted power supply as power. The electric automobile has the advantages of energy conservation, environmental protection, low noise and the like, so that the prospect of the electric automobile is widely seen. However, the development of electric vehicles still faces many technical problems, and the development of charging technology and the deployment of charging stations are important factors.
Battery charging techniques are classified into wired charging and wireless charging. For wired charging, the operation mode is similar to that of the existing gas station, and a person specially needs to operate manually, so that the defects of the mode are obvious, for example, although the mode is safe to the strict design specification, the charging port is easy to ignite under the impact of high voltage and high current, and the device is aged; the charging interface part is easily polluted by dust, rain mist, oil smoke and the like, and the monitoring and the maintenance are troublesome; daily experience shows that the damage rate of the high-power socket is very high, and the socket of the charging station needs to be plugged and pulled frequently, so that the problem is more serious. The wireless charging technology is a technology of transferring electric energy in the air between a charger and a device by an electromagnetic induction or a magnetic resonance technology so that a current flows to charge a battery. The wireless charging method is effectively applied to handheld communication devices, electric vehicles and the like which require large-capacity battery charging, and since the connection point is buried underground, there is little risk of electric leakage and the like, and the problem of poor connection in the wired charging method can be prevented. The wireless charging can be unattended, does not need to be operated manually, is fully-automatic to operate, and is safe and reliable; the common charging can be realized, the service life of the battery and the value of the whole vehicle after long-term use are improved; the medium power is charged, the pressure on a power grid is low, and the charging device is convenient to popularize and install in a parking lot and a garage.
Fig. 1 is a schematic structural diagram of a Wireless Charging System in the prior art, where the Wireless Charging System includes two parts, a ground System and a vehicle System, the ground System includes a Wireless Charging management server (WCCMS), a communication service unit CSU, a power transmission control unit PTC, an ac-to-dc unit PFC and a primary winding PrC (i.e., a Charging winding), and the vehicle System includes a vehicle battery management System BMS, an in-vehicle unit IVU, a vehicle-mounted rectifier module PPC, a secondary winding PuC (i.e., a receiving winding). The ground system and the vehicle system realize communication link management, equipment authentication and charging control through the management and communication system. The management and communication system comprises network elements such as WCCMS, CSU and IVU. The PTC, the PrC, the PPC and the PuC form a wireless energy transmission system WPT, and electric energy is transmitted to a vehicle system from a ground system through a wireless interface. The PTC of the ground system and the PPC of the vehicle system communicate and communicate through a management and communication system. The wireless charging management system can be divided into an authentication platform and a data authentication center in the aspect of authentication management, the authentication platform is used for authenticating the IVU and the CSU, and the data authentication center stores user authentication materials and user subscription data.
The wireless charging management system and the communication service unit adopt a Wc interface, the wireless charging management system and the in-vehicle unit adopt a Wi interface, both adopt a TCP (Transmission Control Protocol) Protocol based on connection, the Security Protocol adopts a TLS (Transport Layer Security Protocol), the communication service unit and the in-vehicle unit adopt a UDP (User Data Protocol) Protocol based on no connection, and the Security Control Protocol adopts a DTLS (Data Link Transport Layer Security) Protocol, namely a Data packet Transport Layer Security Protocol. An international universal serial communication protocol CAN (Controller Area Network) bus protocol is adopted between the communication service unit and the power generation control unit, between the in-vehicle unit and the power pickup control unit, and between the power pickup control unit and the battery management system.
The electric automobile generally comprises vehicle-mounted equipment and charging equipment detachably connected with the vehicle-mounted equipment, wherein the charging equipment is used for charging tasks, charging management tasks (such as charging) and the like of the electric automobile, and the charging equipment provides power for the vehicle-mounted equipment so as to drive the vehicle-mounted equipment to operate. Before the electric vehicle is charged in the wireless charging system, the wireless charging system generally needs to authenticate the electric vehicle, and in the prior art, the wireless charging system generally authenticates the electric vehicle according to the identification information of the vehicle-mounted device, or the wireless charging system authenticates the electric vehicle according to the identification information of the charging device.
At present, some users often replace charging equipment installed on vehicle-mounted equipment, and if the vehicle-mounted equipment of a certain electric vehicle is replaced with the charging equipment and the wireless charging system authenticates the electric vehicle according to identification information of the vehicle-mounted equipment, the wireless charging system cannot identify the charging equipment of the electric vehicle and cannot manage the charging equipment after successfully authenticating the electric vehicle; or when the charging device is replaced with the vehicle-mounted device of a certain electric vehicle and the wireless charging system authenticates the electric vehicle according to the identification information of the charging device, the wireless charging system cannot identify the vehicle-mounted device of the electric vehicle after successfully authenticating the electric vehicle, and cannot manage the vehicle-mounted device. The prior art has the defect that when the wireless charging system authenticates the electric automobile, whether the preset binding relationship between the vehicle-mounted equipment and the charging equipment of the electric automobile is met cannot be identified, so that the electric automobile is inconvenient to manage.
Disclosure of Invention
The invention mainly aims to provide a wireless charging authentication method and a wireless charging authentication device, and aims to solve the technical problem that when a wireless charging system authenticates an electric vehicle, whether a preset binding relationship between vehicle-mounted equipment and charging equipment of the electric vehicle is met or not cannot be identified, so that the electric vehicle is inconvenient to manage.
The invention provides a wireless charging authentication method, which is used for authenticating an electric automobile, wherein the electric automobile comprises vehicle-mounted equipment and charging equipment, and the wireless charging authentication method comprises the following steps:
acquiring first identification information corresponding to the vehicle-mounted equipment and second identification information corresponding to the charging equipment;
generating verification information according to the first identification information and the second identification information;
and sending the verification information to a preset server so that the preset server can authenticate the electric automobile according to the verification information.
Preferably, before the step of generating the verification information according to the first identification information and the second identification information, the wireless charging authentication method further includes:
receiving a random number and a secret key sent by a preset server;
the step of generating the verification information according to the first identification information and the second identification information includes:
and signing the first identification information, the second identification information and the random number according to the secret key to generate verification information.
In addition, the present invention further provides a wireless charging authentication method for authenticating an electric vehicle, where the electric vehicle includes an on-board device and a charging device, the wireless charging authentication method including:
receiving verification information generated according to first identification information corresponding to the vehicle-mounted equipment and second identification information corresponding to the charging equipment;
matching the received verification information with preset verification information;
and when the received verification information is matched with the preset verification information, sending authentication passing information to the electric automobile.
Preferably, the step of matching the received verification information with the preset verification information includes:
determining first identification information and second identification information corresponding to the received verification information;
determining a first preset identification matched with the first identification information, and acquiring a second preset identification corresponding to the first preset identification;
matching the second identification information with the second preset identification;
and when the second identification information is matched with the second preset identification, determining that the received verification information is matched with preset verification information.
Preferably, the step of matching the received verification information with the preset verification information includes:
determining a first preset identification and a second preset identification corresponding to the received verification information;
generating comparison and verification information according to the first preset identification and the second preset identification;
and when the received verification information is matched with the comparison verification information, determining that the received verification information is matched with the preset verification information.
Furthermore, the present invention provides a wireless charging authentication apparatus for authenticating an electric vehicle, the electric vehicle including an in-vehicle device and a charging device, the wireless charging authentication apparatus comprising:
the acquisition module is used for acquiring first identification information corresponding to the vehicle-mounted equipment and second identification information corresponding to the charging equipment;
the generating module is used for generating verification information according to the first identification information and the second identification information;
and the first sending module is used for sending the verification information to a preset server so that the preset server can authenticate the electric automobile according to the verification information.
Preferably, the wireless charging authentication apparatus further includes:
the first receiving module is used for receiving the random number and the secret key sent by the preset server;
the generating module is specifically configured to perform signature processing on the first identification information, the second identification information, and the random number according to the secret key and generate verification information.
In addition, the wireless charging authentication device provided by the present invention is applied to a wireless charging system for authenticating an electric vehicle, the electric vehicle including an in-vehicle device and a charging device, the wireless charging authentication device including:
the second receiving module is used for receiving verification information generated according to the first identification information corresponding to the vehicle-mounted equipment and the second identification information corresponding to the charging equipment;
the matching module is used for matching the received verification information with preset verification information;
and the second sending module is used for sending authentication passing information to the electric automobile when the verification information is matched with the preset verification information.
Preferably, the matching module comprises:
the first determining unit is used for determining first identification information and second identification information corresponding to the received verification information;
the second determining unit is used for determining a first preset identifier matched with the first identifier information and acquiring a second preset identifier corresponding to the first preset identifier;
the matching unit is used for matching the second identification information with the second preset identification;
and the third determining unit is used for determining that the received verification information is matched with the preset verification information when the second identification information is matched with the second preset identification.
Preferably, the matching module comprises:
the fourth determining unit is used for determining the first preset identifier and the second preset identifier corresponding to the received verification information;
the generating unit is used for generating comparison and verification information according to the first preset identification and the second preset identification;
and the fifth determining unit is used for determining that the received verification information is matched with the preset verification information when the received verification information is matched with the comparison verification information.
The wireless charging authentication method and device provided by the invention can simultaneously verify the first identification information corresponding to the vehicle-mounted equipment, the second identification information corresponding to the charging equipment and the binding relationship between the first identification information and the second identification information when the preset server authenticates the electric vehicle, and the check information received by the preset server cannot be matched when a user changes the charging equipment corresponding to a certain vehicle-mounted equipment, namely when the user changes the binding relationship between the first identification information and the second identification information, therefore, the server cannot complete the authentication of the electric automobile, so that the wireless charging system can effectively identify whether the preset binding relationship is met between the vehicle-mounted equipment and the charging equipment of the electric automobile when the electric automobile is authenticated, and the electric automobile is more conveniently managed.
Drawings
Fig. 1 is a schematic structural diagram of a wireless charging system in the prior art;
fig. 2 is a flowchart illustrating a wireless charging authentication method according to a first embodiment of the present invention;
fig. 3 is a flowchart illustrating a wireless charging authentication method according to a second embodiment of the present invention;
fig. 4 is a flowchart illustrating a wireless charging authentication method according to a third embodiment of the present invention;
fig. 5 is a detailed flowchart of a first embodiment of a matching step in the wireless charging authentication method according to the present invention;
fig. 6 is a detailed flowchart of a second embodiment of a matching step in the wireless charging authentication method according to the present invention;
fig. 7 is a functional block diagram of a wireless charging authentication device according to a first embodiment of the present invention;
fig. 8 is a functional block diagram of a wireless charging authentication device according to a second embodiment of the present invention;
fig. 9 is a functional block diagram of a wireless charging authentication device according to a third embodiment of the present invention;
fig. 10 is a schematic diagram illustrating detailed functional modules of a matching module in a wireless charging authentication device according to a first embodiment of the present invention;
fig. 11 is a schematic diagram of a detailed functional module of a matching module in a wireless charging authentication device according to a second embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention provides a wireless charging authentication method.
The wireless charging authentication method is used for authenticating an electric automobile, wherein the electric automobile comprises vehicle-mounted equipment and charging equipment, the vehicle-mounted equipment can be a frame part of the electric automobile, each vehicle-mounted equipment corresponds to first identification information for uniquely identifying the vehicle-mounted equipment, and the first identification information can be an identification code of the vehicle, or an engine number of the vehicle-mounted equipment, or a vehicle frame number of the vehicle-mounted equipment, or a license plate number of the vehicle-mounted equipment and the like; the charging equipment is an accessory part of the electric automobile related to charging, the charging equipment also corresponds to second identification information for uniquely identifying the charging equipment, the second identification information comprises equipment identification and user identification, the equipment identification can be a battery number, a charging billing identification or a charging management system identification number, and the like, and the user identification is used for verifying the charging equipment.
Referring to fig. 2, fig. 2 is a flowchart illustrating a first embodiment of the wireless charging authentication method according to the present invention, in this embodiment, an electric vehicle may be used as an execution subject, and a third party may also be used as an execution subject, for example, a third party server may be used as an execution subject. The present embodiment is explained with an electric vehicle as an execution subject. The wireless charging authentication method provided by the embodiment includes:
step S10, acquiring first identification information corresponding to the vehicle-mounted device and second identification information corresponding to the charging device;
in this embodiment, the electric vehicle may include an in-vehicle management unit that may acquire the first identification information from the in-vehicle device and the second identification information from the charging device via the CAN bus.
Step S20, generating verification information according to the first identification information and the second identification information;
in this embodiment, the check information may be a combination of the first identification information and the second identification information, for example, the first identification information and the second identification information are directly packed into a data packet to generate the check information. Preferably, the first identification information and the second identification information may be further processed by a preset algorithm to generate the check information, for example, the first identification information and the second identification information may be merged into one character string by a hash algorithm, or the generated character string may be further subjected to signature processing, and finally the check information is generated.
And step S30, sending the verification information to a preset server so that the preset server can authenticate the electric vehicle according to the verification information.
In this embodiment, the preset server may be a server corresponding to a ground charging management system, or a server corresponding to a charging station where the electric vehicle is currently located. Preferably, the electric vehicle transmits the check information to a preset server based on a previously established TLS (transport layer Security) communication connection.
After the preset server receives the verification information, the received verification information is matched with the preset verification information, and when the received verification information is matched with the preset verification information, authentication passing information is sent to the electric automobile, so that the electric automobile sends a charging request to the preset server after receiving the authentication passing information.
The following two ways may be used for the preset server to match the received verification information with the preset verification information:
the first method is as follows:
determining first identification information and second identification information corresponding to the received verification information;
determining a first preset identification matched with the first identification information, and acquiring a second preset identification corresponding to the first preset identification;
matching the second identification information with the second preset identification;
and when the second identification information is matched with the second preset identification, determining that the received verification information is matched with preset verification information.
The second method comprises the following steps:
determining a first preset identification and a second preset identification corresponding to the received verification information;
generating comparison and verification information according to the first preset identification and the second preset identification;
and when the received verification information is matched with the comparison verification information, determining that the received verification information is matched with the preset verification information.
The wireless charging authentication method provided by the invention has the advantages that the first identification information corresponding to the vehicle-mounted equipment and the second identification information corresponding to the charging equipment are obtained, the check information is generated according to the first identification information and the second identification information, and the generated check information is sent to the preset server, so that the preset server can authenticate the electric automobile according to the received check information, when the preset server authenticates the electric automobile, the first identification information corresponding to the vehicle-mounted equipment, the second identification information corresponding to the charging equipment and the binding relationship between the first identification information and the second identification information can be simultaneously verified, when a user changes the charging equipment corresponding to a certain vehicle-mounted equipment, namely the user changes the binding relationship between the first identification information and the second identification information, the check information received by the preset server cannot be matched with the preset check information, therefore, the server cannot complete the authentication of the electric automobile, so that the wireless charging system can effectively identify whether the preset binding relationship is met between the vehicle-mounted equipment and the charging equipment of the electric automobile when the electric automobile is authenticated, and the electric automobile is more conveniently managed.
Further, in order to further improve the security of the wireless charging authentication, based on the first embodiment of the wireless charging authentication method of the present invention, the present invention further provides a second embodiment of the wireless charging authentication, referring to fig. 3, where fig. 3 is a flowchart illustrating the second embodiment of the wireless charging authentication method of the present invention, before step S20, the wireless charging authentication method further includes:
step S40, receiving the random number and the secret key sent by the preset server;
preferably, the preset server may first determine whether an electric vehicle drives into the ground charging parking space, and when it is determined that the electric vehicle drives into the ground charging parking space, the preset server may send the random number and the secret key to the electric vehicle.
In this embodiment, the ground wireless charging system can detect whether an electric vehicle drives into the parking space in real time to charge, for example, the ground charging parking space of the ground wireless charging system can be provided with the radio frequency reading module, the electric vehicle is provided with the radio frequency tag, and after the electric vehicle drives into the ground charging parking space, the radio frequency reading module can read the information of the radio frequency tag, so that the ground wireless charging system determines that the electric vehicle drives into at present, and the preset server corresponding to the ground wireless charging system sends the random number and the secret key to the electric vehicle.
Or after the electric vehicle drives into the ground charging parking space, the electric vehicle may further send an authentication request to the preset server, preferably, the authentication request may carry identification information of the electric vehicle, after the preset server receives the authentication request, it may be determined that the electric vehicle currently drives into the ground charging parking space, and the preset server sends the random number and the secret key to the electric vehicle according to the identification information carried by the authentication request.
More preferably, before the electric vehicle sends the authentication request, the electric vehicle establishes TLS communication connection with a preset server, and then the electric vehicle sends the authentication request to the preset server based on the established TLS connection, so that the preset server returns the random number and the key.
It should be noted that the execution sequence between step S10 and step S40 is not sequential. The present embodiment will be described by taking the step S40 before the step S10 as an example.
Step S20 includes: and signing the first identification information, the second identification information and the random number according to the secret key to generate verification information.
In this embodiment, the first identification information, the second identification information, and the random number may be processed through a preset algorithm, for example, the first identification information, the second identification information, and the random number may be combined into a character string through a hash algorithm, and then the generated character string is signed according to the received key, and finally the verification information is generated.
The present invention further provides a wireless charging authentication method applied to a wireless charging system, referring to fig. 4, fig. 4 is a flowchart illustrating a third embodiment of the wireless charging authentication method according to the present invention, in this embodiment, a wireless charging system may be used as an execution subject, for example, a server corresponding to the wireless charging system may be used as the execution subject. The wireless charging authentication method provided by the embodiment comprises the following steps:
step S50, receiving verification information generated according to the first identification information corresponding to the vehicle-mounted device and the second identification information corresponding to the charging device;
in this embodiment, the method for generating the verification information may refer to the first or second embodiment of the wireless charging authentication method, which is not described herein again.
Step S60, matching the received verification information with preset verification information;
in this embodiment, two ways of matching the received verification information with the preset verification information are proposed:
first, referring to fig. 5, fig. 5 is a detailed flowchart illustrating a first embodiment of a matching step in the wireless charging authentication method according to the present invention, and step S60 includes:
step S61, determining first identification information and second identification information corresponding to the received verification information;
in this embodiment, the check information may be a combination of the first identification information and the second identification information, for example, the first identification information and the second identification information may be packaged into a data packet according to a preset rule, that is, the check information, so that the first identification information and the second identification information may be directly extracted from the received check information.
Step S62, determining a first preset identification matched with the first identification information, and acquiring a second preset identification corresponding to the first preset identification;
in this embodiment, the wireless charging system has a plurality of first preset identifiers in advance, and each first preset identifier corresponds to a second preset identifier, that is, the wireless charging system has a one-to-one correspondence relationship between the plurality of first preset identifiers and the second preset identifiers in advance. After the first identification information is determined, a first preset identification which is the same as the first identification information is searched in pre-stored first preset identifications. And after the first preset identification which is the same as the first identification information is found, determining a second preset identification corresponding to the found first preset identification.
Step S63, matching the second identification information with the second preset identification;
in this embodiment, it is determined whether the second identification information is the same as the second preset identification. When the second identification information is the same as the second preset identification, the second identification information can be considered to be matched with the second preset identification; when the second identification information is different from the second preset identification, the second identification information can be considered to be not matched with the second preset identification.
Step S64, when the second identification information matches the second preset identification, determining that the received verification information matches the preset verification information.
The second method comprises the following steps: referring to fig. 6, fig. 6 is a detailed flowchart illustrating a second embodiment of the matching step in the wireless charging authentication method of the present invention, and step S60 includes:
step S65, determining a first preset identifier and a second preset identifier corresponding to the received verification information;
in this embodiment, the wireless charging system prestores an identifier of the electric vehicle and a first preset identifier and a second preset identifier corresponding to the identifier. The corresponding electric vehicle can be determined according to the verification information, for example, when the electric vehicle sends authentication information to the wireless charging system based on the established TLS communication connection, the authentication information can carry an identifier of the electric vehicle, and when the wireless charging system receives the verification information in the subsequent communication process between the electric vehicle and the wireless charging system, a first preset identifier and a second preset identifier corresponding to the identifier can be determined according to the identifier carried by the previously received authentication information; or, the verification information can also directly carry an identifier of the electric vehicle, and when the wireless charging system receives the verification information, the first preset identifier and the second preset identifier corresponding to the identifier carried by the verification information can be determined.
Step S66, generating comparison and verification information according to the first preset identification and the second preset identification;
in this embodiment, the first preset identifier and the second preset identifier may be processed by a preset algorithm to generate the comparison and verification information, for example, the first preset identifier and the second preset identifier may be combined into a character string by a hash algorithm, or the generated character string may be signed, and the comparison and verification information is finally generated.
It should be noted that the preset algorithm used by the wireless charging system to generate the comparison and verification information is consistent with the preset algorithm used by the electric vehicle side to generate the verification information.
And step S67, when the received verification information is matched with the comparison verification information, determining that the received verification information is matched with the preset verification information.
When the comparison check information is consistent with the check information, the check information can be considered to be matched with the comparison check information.
And step S70, when the received verification information is matched with the preset verification information, sending authentication passing information to the electric automobile.
In this embodiment, when it is determined that the verification information matches the preset verification information, the wireless charging system may send the authentication passing information to the electric vehicle. When the electric automobile receives the authentication passing information, the electric automobile can send a charging request to the wireless charging system so as to complete the subsequent charging process.
The wireless charging authentication method provided by the invention receives the verification information generated according to the first identification information corresponding to the vehicle-mounted equipment and the second identification information corresponding to the charging equipment, matches the received verification information with the preset verification information, and sends the authentication passing information to the electric vehicle when the received verification information is matched with the preset verification information, so that the wireless charging system can simultaneously verify the first identification information corresponding to the vehicle-mounted equipment, the second identification information corresponding to the charging equipment and the binding relationship between the first identification information and the second identification information when authenticating the electric vehicle, when a user changes the charging equipment corresponding to a certain vehicle-mounted equipment, namely when the user changes the binding relationship between the first identification information and the second identification information, the verification information received by the wireless charging system cannot be matched with the preset verification information, therefore, the wireless charging system cannot complete the authentication of the electric automobile, whether the preset binding relationship is met between the vehicle-mounted equipment and the charging equipment of the electric automobile can be effectively identified when the wireless charging system authenticates the electric automobile, and the electric automobile is more conveniently managed.
The invention further provides a wireless charging authentication device.
The wireless charging authentication device is used for authenticating an electric automobile, wherein the electric automobile comprises vehicle-mounted equipment and charging equipment, the vehicle-mounted equipment can be a frame part of the electric automobile, each vehicle-mounted equipment corresponds to first identification information for uniquely identifying the vehicle-mounted equipment, and the first identification information can be an identification code of the vehicle, or an engine number of the vehicle-mounted equipment, or a vehicle frame number of the vehicle-mounted equipment, or a license plate number of the vehicle-mounted equipment and the like; the charging equipment is an accessory part of the electric automobile related to charging, the charging equipment also corresponds to second identification information for uniquely identifying the charging equipment, the second identification information comprises equipment identification and user identification, the equipment identification can be a battery number, a charging billing identification or a charging management system identification number, and the like, and the user identification is used for verifying the charging equipment.
Referring to fig. 7, fig. 7 is a functional block diagram of a wireless charging authentication device according to a first embodiment of the present invention. In this embodiment, the wireless charging authentication device may be applied to an electric vehicle, and may also be applied to a third-party system. The present embodiment will be described by taking an example of application to an electric vehicle. The wireless charging authentication device provided by the embodiment includes:
the acquiring module 10 is configured to acquire first identification information corresponding to the vehicle-mounted device and second identification information corresponding to the charging device;
in this embodiment, the wireless charging authentication apparatus may include an in-vehicle management unit, and the in-vehicle management unit may acquire the first identification information from the in-vehicle device and the second identification information from the charging device through the CAN bus.
A generating module 20, configured to generate verification information according to the first identification information and the second identification information;
in this embodiment, the check information may be a combination of the first identification information and the second identification information, for example, the first identification information and the second identification information are directly packed into a data packet to generate the check information. Preferably, the first identification information and the second identification information may be further processed by a preset algorithm to generate the check information, for example, the first identification information and the second identification information may be merged into one character string by a hash algorithm, or the generated character string may be further subjected to signature processing, and finally the check information is generated.
The first sending module 30 is configured to send the verification information to a preset server, so that the preset server authenticates the electric vehicle according to the verification information.
In this embodiment, the preset server may be a server corresponding to a ground charging management system, or a server corresponding to a charging station where the electric vehicle is currently located. Preferably, the electric vehicle transmits the check information to a preset server based on a previously established TLS (transport layer Security) communication connection.
After the preset server receives the verification information, the received verification information is matched with the preset verification information, and when the verification information is matched with the preset verification information, authentication passing information is sent to the electric automobile, so that the electric automobile sends a charging request to the preset server after receiving the authentication passing information.
The following two ways may be used for the preset server to match the received verification information with the preset verification information:
the first method is as follows:
determining first identification information and second identification information corresponding to the received verification information;
determining a first preset identification matched with the first identification information, and acquiring a second preset identification corresponding to the first preset identification;
matching the second identification information with the second preset identification;
and when the second identification information is matched with the second preset identification, determining that the received verification information is matched with preset verification information.
The second method comprises the following steps:
determining a first preset identification and a second preset identification corresponding to the received verification information;
generating comparison and verification information according to the first preset identification and the second preset identification;
and when the received verification information is matched with the comparison verification information, determining that the received verification information is matched with the preset verification information.
The wireless charging authentication method provided by the invention has the advantages that the first identification information corresponding to the vehicle-mounted equipment and the second identification information corresponding to the charging equipment are obtained, the check information is generated according to the first identification information and the second identification information, and the generated check information is sent to the preset server, so that the preset server can authenticate the electric automobile according to the received check information, when the preset server authenticates the electric automobile, the first identification information corresponding to the vehicle-mounted equipment, the second identification information corresponding to the charging equipment and the binding relationship between the first identification information and the second identification information can be simultaneously verified, when a user changes the charging equipment corresponding to a certain vehicle-mounted equipment, namely the user changes the binding relationship between the first identification information and the second identification information, the check information received by the preset server cannot be matched with the preset check information, therefore, the preset server cannot finish the authentication of the electric automobile, so that the wireless charging authentication device can effectively identify whether the preset binding relationship is met between the vehicle-mounted equipment and the charging equipment of the electric automobile when the electric automobile is authenticated, and the electric automobile is more conveniently managed.
Further, in order to further improve the security of the wireless charging authentication, based on the first embodiment of the wireless charging authentication device of the present invention, the present invention further provides a second embodiment of the wireless charging authentication device, referring to fig. 8, where fig. 8 is a schematic functional module diagram of the second embodiment of the wireless charging authentication device of the present invention, and the wireless charging authentication device further includes:
a first receiving module 40, configured to receive a random number and a secret key sent by a preset server;
preferably, the preset server may first determine whether an electric vehicle drives into the ground charging parking space, and when it is determined that the electric vehicle drives into the ground charging parking space, the preset server may send the random number and the secret key to the electric vehicle.
In this embodiment, the ground wireless charging system can detect whether an electric vehicle drives into the parking space in real time to charge, for example, the ground charging parking space of the ground wireless charging system can be provided with the radio frequency reading module, the electric vehicle is provided with the radio frequency tag, and after the electric vehicle drives into the ground charging parking space, the radio frequency reading module can read the information of the radio frequency tag, so that the ground wireless charging system determines that the electric vehicle drives into at present, and the preset server corresponding to the ground wireless charging system sends the random number and the secret key to the electric vehicle.
Or after the electric vehicle drives into the ground charging parking space, the electric vehicle may further send an authentication request to the preset server, preferably, the authentication request may carry identification information of the electric vehicle, after the preset server receives the authentication request, it may be determined that the electric vehicle currently drives into the ground charging parking space, and the preset server sends the random number and the secret key to the electric vehicle according to the identification information carried by the authentication request.
More preferably, before the electric vehicle sends the authentication request, the electric vehicle establishes TLS communication connection with a preset server, and then the electric vehicle sends the authentication request to the preset server based on the established TLS connection, so that the preset server returns the random number and the key.
The generating module 20 is specifically configured to perform signature processing on the first identification information, the second identification information, and the random number according to the secret key, and generate verification information.
In this embodiment, the generating module 20 may first process the first identification information, the second identification information, and the random number through a preset algorithm, for example, the first identification information, the second identification information, and the random number may be combined into a character string through a hash algorithm, then perform signature processing on the generated character string according to the received key, and finally generate the verification information.
The invention further provides a wireless charging authentication device, which is applied to a wireless charging system, and referring to fig. 9, fig. 9 is a functional module schematic diagram of a third embodiment of the wireless charging authentication device of the invention. The wireless charging authentication device provided by the embodiment comprises:
a second receiving module 50, configured to receive verification information generated according to the first identification information corresponding to the vehicle-mounted device and the second identification information corresponding to the charging device;
in this embodiment, the method for generating the verification information may refer to the first or second embodiment of the wireless charging authentication apparatus, and is not described herein again.
A matching module 60, configured to match the received verification information with preset verification information;
in this embodiment, two ways of matching the received verification information with the preset verification information are proposed:
referring to fig. 10, fig. 10 is a schematic diagram of detailed functional modules of a first embodiment of a matching module in a wireless charging authentication device according to the present invention, where the matching module 60 includes:
a first determining unit 61, configured to determine first identification information and second identification information corresponding to the received verification information;
in this embodiment, the check information may be a combination of the first identification information and the second identification information, for example, the first identification information and the second identification information may be packaged into a data packet according to a preset rule, that is, the check information, so that the first identification information and the second identification information may be directly extracted from the received check information.
A second determining unit 62, configured to determine a first preset identifier matching the first identifier information, and obtain a second preset identifier corresponding to the first preset identifier;
in this embodiment, the wireless charging authentication device has a plurality of first preset identifiers pre-stored therein, and each of the first preset identifiers corresponds to a second preset identifier, that is, the wireless charging authentication device has a one-to-one correspondence relationship between the plurality of first preset identifiers and the second preset identifiers pre-stored therein. After the first identification information is determined, a first preset identification which is the same as the first identification information is searched in pre-stored first preset identifications. And after the first preset identification which is the same as the first identification information is found, determining a second preset identification corresponding to the found first preset identification.
A matching unit 63, configured to match the second identifier information with the second preset identifier;
in this embodiment, it is determined whether the second identification information is the same as the second preset identification. When the second identification information is the same as the second preset identification, the second identification information can be considered to be matched with the second preset identification; when the second identification information is different from the second preset identification, the second identification information can be considered to be not matched with the second preset identification.
A third determining unit 64, configured to determine that the received verification information matches the preset verification information when the second identification information matches the second preset identification.
Mode two, referring to fig. 11, fig. 11 is a schematic diagram of a detailed functional module of a second embodiment of a matching module in a wireless charging authentication device according to the present invention, where the matching module 60 includes:
a fourth determining unit 65, configured to determine a first preset identifier and a second preset identifier corresponding to the received verification information;
in this embodiment, the wireless charging authentication device prestores an identifier of the electric vehicle and a first preset identifier and a second preset identifier corresponding to the identifier. For example, when the electric vehicle sends authentication information to the wireless charging authentication device based on the established TLS communication connection, the authentication information may carry an identifier of the electric vehicle, and when the wireless charging authentication device receives the authentication information in the subsequent communication process between the electric vehicle and the wireless charging authentication device, a first preset identifier and a second preset identifier corresponding to the identifier may be determined according to the identifier carried by the previously received authentication information; or, the verification information can also directly carry the identification of the electric vehicle, and when the wireless charging authentication device receives the verification information, the first preset identification and the second preset identification corresponding to the identification carried by the verification information can be determined.
The generating unit 66 is configured to generate comparison and verification information according to the first preset identifier and the second preset identifier;
in this embodiment, the first preset identifier and the second preset identifier may be processed by a preset algorithm to generate the comparison and verification information, for example, the first preset identifier and the second preset identifier may be combined into a character string by a hash algorithm, or the generated character string may be signed, and the comparison and verification information is finally generated.
It should be noted that the preset algorithm used by the wireless charging authentication device to generate the comparison verification information is consistent with the preset algorithm used by the electric vehicle side to generate the verification information.
A fifth determining unit 67, configured to determine that the received verification information matches the preset verification information when the received verification information matches the comparison verification information.
When the comparison check information is consistent with the check information, the check information can be considered to be matched with the comparison check information.
And a second sending module 70, configured to send the authentication passing information to the electric vehicle when the received verification information matches the preset verification information.
In this embodiment, when it is determined that the verification information matches the preset verification information, the wireless charging authentication device may send authentication passing information to the electric vehicle. When the electric automobile receives the authentication passing information, the electric automobile can send a charging request to the wireless charging system so as to complete the subsequent charging process.
The wireless charging authentication device provided by the invention can simultaneously verify the first identification information corresponding to the vehicle-mounted equipment, the second identification information corresponding to the charging equipment and the binding relationship between the first identification information and the second identification information when the wireless charging authentication device authenticates the electric vehicle, namely when the user changes the binding relationship between the first identification information and the second identification information, the verification information received by the wireless charging authentication device cannot be matched with the preset verification information, therefore, the wireless charging authentication device cannot complete authentication of the electric automobile, whether preset binding relation is met between the vehicle-mounted equipment and the charging equipment of the electric automobile can be effectively identified when the wireless charging authentication device authenticates the electric automobile, and management of the electric automobile is facilitated.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. A wireless charging authentication method is used for authenticating an electric vehicle, the electric vehicle comprises vehicle-mounted equipment and charging equipment, and the wireless charging authentication method is characterized by comprising the following steps:
acquiring first identification information corresponding to the vehicle-mounted equipment and second identification information corresponding to the charging equipment;
generating verification information according to the first identification information and the second identification information;
sending the verification information to a preset server based on a pre-established security transport layer protocol (TLS) communication connection so that the preset server can authenticate the electric vehicle according to the verification information;
the step of authenticating the electric vehicle by the preset server according to the verification information comprises the following steps of:
determining first identification information and second identification information corresponding to the verification information;
determining a first preset identification matched with the first identification information, and acquiring a second preset identification corresponding to the first preset identification;
matching the second identification information with the second preset identification;
and when the second identification information is matched with the second preset identification, determining that the verification information is matched with preset verification information so as to authenticate the electric automobile.
2. The wireless charging authentication method of claim 1, wherein before the step of generating the verification information based on the first identification information and the second identification information, the wireless charging authentication method further comprises:
receiving a random number and a secret key sent by a preset server;
the step of generating the verification information according to the first identification information and the second identification information includes:
and signing the first identification information, the second identification information and the random number according to the secret key to generate verification information.
3. A wireless charging authentication method is used for authenticating an electric vehicle, the electric vehicle comprises vehicle-mounted equipment and charging equipment, and the wireless charging authentication method is characterized by comprising the following steps:
receiving verification information generated according to first identification information corresponding to the vehicle-mounted equipment and second identification information corresponding to the charging equipment;
matching the received verification information with preset verification information;
when the received verification information is matched with the preset verification information, sending authentication passing information to the electric automobile;
wherein, the step of matching the received verification information with the preset verification information comprises:
determining first identification information and second identification information corresponding to the received verification information;
determining a first preset identification matched with the first identification information, and acquiring a second preset identification corresponding to the first preset identification;
matching the second identification information with the second preset identification;
and when the second identification information is matched with the second preset identification, determining that the received verification information is matched with preset verification information.
4. The wireless charging authentication method of claim 3, wherein the step of matching the received verification information with the preset verification information further comprises:
determining a first preset identification and a second preset identification corresponding to the received verification information;
generating comparison and verification information according to the first preset identification and the second preset identification;
and when the received verification information is matched with the comparison verification information, determining that the received verification information is matched with the preset verification information.
5. A wireless charging authentication device for authenticating an electric vehicle, the electric vehicle including an in-vehicle device and a charging device, the wireless charging authentication device comprising:
the acquisition module is used for acquiring first identification information corresponding to the vehicle-mounted equipment and second identification information corresponding to the charging equipment;
the generating module is used for generating verification information according to the first identification information and the second identification information;
the first sending module is used for sending the verification information to a preset server based on a pre-established security transport layer protocol (TLS) communication connection so that the preset server can authenticate the electric automobile according to the verification information;
the step of authenticating the electric vehicle by the preset server according to the verification information comprises the following steps of:
determining first identification information and second identification information corresponding to the verification information;
determining a first preset identification matched with the first identification information, and acquiring a second preset identification corresponding to the first preset identification;
matching the second identification information with the second preset identification;
and when the second identification information is matched with the second preset identification, determining that the verification information is matched with preset verification information so as to authenticate the electric automobile.
6. The wireless charging authentication device of claim 5, further comprising:
the first receiving module is used for receiving the random number and the secret key sent by the preset server;
the generating module is specifically configured to perform signature processing on the first identification information, the second identification information, and the random number according to the secret key and generate verification information.
7. The utility model provides a wireless authentication device that charges, is applied to wireless charging system for carry out the authentication to electric automobile, electric automobile includes mobile unit and battery charging outfit, its characterized in that, wireless authentication device that charges includes:
the second receiving module is used for receiving verification information generated according to the first identification information corresponding to the vehicle-mounted equipment and the second identification information corresponding to the charging equipment;
the matching module is used for matching the received verification information with preset verification information;
the second sending module is used for sending authentication passing information to the electric automobile when the received verification information is matched with the preset verification information;
wherein the matching module comprises:
the first determining unit is used for determining first identification information and second identification information corresponding to the received verification information;
the second determining unit is used for determining a first preset identifier matched with the first identifier information and acquiring a second preset identifier corresponding to the first preset identifier;
the matching unit is used for matching the second identification information with the second preset identification;
and the third determining unit is used for determining that the received verification information is matched with the preset verification information when the second identification information is matched with the second preset identification.
8. The wireless charging authentication device of claim 7, wherein the matching module further comprises:
the fourth determining unit is used for determining the first preset identifier and the second preset identifier corresponding to the received verification information;
the generating unit is used for generating comparison and verification information according to the first preset identification and the second preset identification;
and the fifth determining unit is used for determining that the received verification information is matched with the preset verification information when the received verification information is matched with the comparison verification information.
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