UNAUTHORIZED CONNECTION DETECTING DEVICE, UNAUTHORIZED CONNECTION DETECTING SYSTEM, AND UNAUTHORIZED CONNECTION DETECTING METHOD

• US 20140059350A1
• Filed: 11/05/2012
• Published: 02/27/2014
• Est. Priority Date: 01/17/2012
• Status: Active Grant

• Current Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Corporation (Panasonic Holdings Corporation)
• Inventors: Unagami, Yuji, Matsuzaki, Natsume, Ohmori, Motoji
• Granted Patent: US 9,270,463 B2
• Time in Patent Office: Days
• US Class Current: 713/169
• CPC Class Codes: B60L 2240/70 Interactions with external data bases, e.g. traffic centres
• CPC Class Codes: B60L 2270/32 of electricity
• CPC Class Codes: B60L 53/305 Communication interfaces
• CPC Class Codes: B60L 53/31 Charging columns specially adapted for electric vehicles
• CPC Class Codes: B60L 53/60 Monitoring or controlling charging stations
• CPC Class Codes: B60L 53/65 involving identification of vehicles or their battery types
• CPC Class Codes: B60L 53/68 Off-site monitoring or control, e.g. remote control
• CPC Class Codes: H01M 2010/4278 Systems for data transfer from batteries, e.g. transfer of battery parameters to a controller, data transferred between battery controller and main controller
• CPC Class Codes: H02J 7/00036 Charger exchanging data with battery
• CPC Class Codes: H02J 7/00047 with provisions for charging different types of batteries
• CPC Class Codes: H04L 9/32 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
• CPC Class Codes: H04L 9/3268 using certificate validation, registration, distribution or revocation, e.g. certificate revocation list [CRL]
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 10/72 Electric energy management in electromobility
• CPC Class Codes: Y02T 30/00 Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
• CPC Class Codes: Y02T 90/12 Electric charging stations
• CPC Class Codes: Y02T 90/14 Plug-in electric vehicles
• CPC Class Codes: Y02T 90/16 Information or communication technologies improving the operation of electric vehicles
• CPC Class Codes: Y02T 90/167 : 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]
• CPC Class Codes: Y04S 30/12 : Remote or cooperative charging
• CPC Class Codes: Y04S 30/14 : Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing

Abstract

An unauthorized connection detecting device, which detects whether or not a power storage device is an unauthorized power storage device, includes: a communications unit receiving first charge/discharge information in which first identification information and first connection information are associated each other, the first identification information identifying an encryption key of the power storage device used for mutual authentication between a charge/discharge device and the power storage device, and the first connection information being on the power storage device and obtained when the power storage device is connected to the charge/discharge device; and an unauthorization detecting unit detecting whether or not the power storage device is the unauthorized power storage device, by determining, using the first identification information and the first connection information, whether or not two or more power storage devices associated with a single first identification information item are present.

Claims

1. An unauthorized connection detecting device which detects whether or not a power storage device that is connectable to a charge/discharge device for charging or discharging with power is an unauthorized power storage device, the unauthorized connection detecting device comprising:

a communications unit configured to receive first charge/discharge information in which first identification information and first connection information are associated each other, the first identification information being information for identifying an encryption key of the power storage device used for mutual authentication between the charge/discharge device and the power storage device connectable to the charge/discharge device, and the first connection information being information on the power storage device and obtained when the power storage device is connected to the charge/discharge device; and

an unauthorization detecting unit configured to detect whether or not the power storage device connected to the charge/discharge device is the unauthorized power storage device, by determining, using the first identification information and the first connection information included in the received first charge/discharge information, whether or not two or more power storage devices associated with a single first identification information item are present.

2. The unauthorized connection detecting device according to claim 1,

wherein the communications unit is configured to receive the first charge/discharge information in which the first identification information and the first connection information are associated each other, the first connection information including information indicating a time and a position when and where the power storage device was charged or discharged, and

the unauthorization detecting unit is configured to detect whether or not the power storage device connected to the charge/discharge device is the unauthorized power storage device, by determining, based on a relationship between times and positions included in a first connection information item associated with a single first identification information item, whether or not two or more power storage devices associated with the single first identification information item are present, the first connection information item being included in the first connection information, and the first connection information item and the single first identification information item being included in the received first charge/discharge information.

3. The unauthorized connection detecting device according to claim 2,

wherein the communications unit is configured to receive the first charge/discharge information in which the first identification information, time information, and position information are associated one another, the time information indicating a time when the charge/discharge device charged or discharged the power storage device, and the position information indicating a position where the charge/discharge device was.

9. The unauthorized connection detecting device according to claim 1,

wherein the communications unit is configured to receive information via one of a communications network connected with a charge station for charging the power storage device when the power storage device is connected and a communications network connected to the charge/discharge device.

10. An unauthorized connection detecting system which detects whether or not a power storage device is an unauthorized power storage device, the unauthorized connection detecting system comprising:

a charge/discharge device which charges or discharges with power; and

the unauthorized connection detecting device according to claim 1 which detects whether or not a power storage device that is connectable to the charge/discharge device is an unauthorized power storage device.

4. An unauthorized connection detecting device which detects whether or not a charge/discharge device that is connectable with a power storage device and charges or discharges the power storage device is an unauthorized charge/discharge device, the unauthorized connection detecting device comprising:

a communications unit configured to receive second charge/discharge information in which second identification information and second connection information are associated each other, the second identification information being information for identifying an encryption key of the charge/discharge device used for mutual authentication between the power storage device and the charge/discharge device connectable with the power storage device, and the second connection information being information on the charge/discharge device and obtained when the charge/discharge device is connected with the power storage device; and

an unauthorization detecting unit configured to detect whether or not the charge/discharge device connected with the power storage device is the unauthorized charge/discharge device, by determining, using the second identification information and the second connection information included in the received second charge/discharge information, whether or not two or more charge/discharge devices associated with a single second identification information item are present.

5. The unauthorized connection detecting device according to claim 4,

wherein the communications unit is configured to receive the second charge/discharge information in which the second identification information and the second connection information are associated each other, the second connection information including charge/discharge device identification information identifying the charge/discharge device, and

the unauthorization detecting unit is configured to detect whether or not the charge/discharge device connected with the power storage device is the unauthorized charge/discharge device, by determining whether or not two or more charge/discharge device identification information items, included in a second connection information item associated with a single second identification information item, indicate mutually different charge/discharge devices, thereby determining whether or not two or more charge/discharge devices associated with the single second identification information item are present, the two or more charge/discharge device identification information items being included in the charge/discharge device identification information, the second connection information item being included in the second connection information, and the second connection information item and the single second identification item being included in the received second charge/discharge information.

6. The unauthorized connection detecting device according to claim 5,

wherein the communications unit is configured to receive the second charge/discharge information in which the second identification information and the second connection information are associated each other, the second connection information including, as the charge/discharge device identification information, position information indicating a position of the charge/discharge device, and

the unauthorization detecting unit is configured to detect whether or not the charge/discharge device connected with the power storage device is the unauthorized charge/discharge device, by determining whether or not two or more position information items, included in a second connection information item associated with a single second identification information item, indicate mutually different positions, thereby determining whether or not two or more charge/discharge devices associated with the single second identification information item are present, the two or more position information items being included in the position information, the second connection information item being included in the second connection information, and the second connection information item and the single second identification information item being included in the received second charge/discharge information.

7. The unauthorized connection detecting device according to claim 5,

wherein the communications unit is configured to receive the second charge/discharge information in which the second identification information and the second connection information are associated each other, the second connection information including direct current information indicating, as the charge/discharge device identification information, a fluctuation of a direct current provided from the charge/discharge device, and

the unauthorization detecting unit is configured to detect whether or not the charge/discharge device connected with the power storage device is the unauthorized charge/discharge device, by determining whether or not two or more direct current information items, included in a second connection information item associated with a single second identification information item, indicate mutually different fluctuations, thereby determining whether or not two or more charge/discharge devices associated with the single second identification information item, the two or more direct current information items being included in the direct current information, the second connection information item being included in the second connection information, and the second connection information item and the single second identification information item being included in the received second charge/discharge information.

8. The unauthorized connection detecting device according to claim 4,

wherein the communications unit is configured to receive the second charge/discharge information in which the second identification information and the second connection information are associated each other, the second connection information including the power storage device identification information identifying the power storage device connected to the charge/discharge device, and

the unauthorization detecting unit is configured to detect whether or not the charge/discharge device connected with the power storage device is the unauthorized charge/discharge device, by determining whether or not the number of power storage devices, identified by two or more power storage device identification information items included in a second connection information item associated with a single second identification information item, is larger than or equal to a predetermined threshold, thereby determining whether or not two or more charge/discharge devices associated with the single second identification information item are present, the two or more power storage device identification information items being included in the power storage device identification information, the second connection information item being included in the second connection information, and the second connection information item and the single second identification information item being included in the received second charge/discharge information.

11. An unauthorized connection detecting system which detects whether or not a charge/discharge device for charging or discharging with power is an unauthorized charge/discharge device, the unauthorized connection detecting system comprising:

a power storage device; and

an unauthorized connection detecting device according to claim 4 which detects whether or not a charge/discharge device that is connectable with the power storage device and charges or discharges the power storage device is an unauthorized charge/discharge device.

12. An unauthorized connection detecting method employed by an unauthorized connection detecting device for detecting whether or not a power storage device that is connectable to a charge/discharge device for charging or discharging with power is an unauthorized power storage device, the unauthorized connection detecting method comprising:

receiving by the unauthorized connection detecting device first charge/discharge information in which first identification information and first connection information are associated each other, the first identification information being information for identifying an encryption key of the power storage device used for mutual authentication between the charge/discharge device and the power storage device connectable to the charge/discharge device, and the first connection information being information on the power storage device and obtained when the power storage device is connected to the charge/discharge device; and

detecting by the unauthorized connection detecting device whether or not the power storage device connected to the charge/discharge device is the unauthorized power storage device, by determining, using the first identification information and the first connection information included in the received first charge/discharge information, whether or not two or more power storage devices associated with a single first identification information item are present.

14. A non-transitory computer-readable recording medium having a program recorded thereon for causing a computer to execute the steps included in the unauthorized connection detecting method according to claim 12.

13. An unauthorized connection detecting method employed by an unauthorized connection detecting device for detecting whether or not a charge/discharge device that is connectable with a power storage device and charges or discharges the power storage device is an unauthorized charge/discharge device, the unauthorized connection detecting device comprising:

receiving by the unauthorized connection detecting device second charge/discharge information in which second identification information and second connection information are associated each other, the second identification information being information for identifying an encryption key of the charge/discharge device used for mutual authentication between the power storage device and the charge/discharge device connectable with the power storage device, and the second connection information being information on the charge/discharge device and obtained when the charge/discharge device is connected with the power storage device; and

detecting by the unauthorized connection detecting device whether or not the charge/discharge device connected with the power storage device is the unauthorized charge/discharge device, by determining, using the second identification information and the second connection information included in the received second charge/discharge information, whether or not two or more charge/discharge devices associated with a single second identification information item are present.

15. A non-transitory computer-readable recording medium having a program recorded thereon for causing a computer to execute the steps included in the unauthorized connection detecting method according to claim 13.

16. An integrated circuit which detects whether or not a power storage device that is connectable to a charge/discharge device for charging or discharging with power is an unauthorized power storage device, the integrated circuit comprising:

a communications unit configured to receive first charge/discharge information in which first identification information and first connection information are associated each other, the first identification information being information for identifying an encryption key of the power storage device used for mutual authentication between the charge/discharge device and the power storage device connectable to the charge/discharge device, and the first connection information being information on the power storage device and obtained when the power storage device is connected to the charge/discharge device; and

an unauthorization detecting unit configured to detect whether or not the power storage device connected to the charge/discharge device is the unauthorized power storage device, by determining, using the first identification information and the first connection information included in the received first charge/discharge information, whether or not two or more power storage devices associated with a single first identification information item are present.

17. An integrated circuit which detects whether or not a charge/discharge device that is connectable with a power storage device and charges or discharges the power storage device is an unauthorized charge/discharge device, the integrated circuit comprising:

a communications unit configured to receive second charge/discharge information in which second identification information and second connection information are associated each other, the second identification information being information for identifying an encryption key of the charge/discharge device used for mutual authentication between the power storage device and the charge/discharge device connectable with the power storage device, and the second connection information being information on the charge/discharge device and obtained when the charge/discharge device is connected with the power storage device; and

an unauthorization detecting unit configured to detect whether or not the charge/discharge device connected with the power storage device is the unauthorized charge/discharge device, by determining, using the second identification information and the second connection information included in the received second charge/discharge information, whether or not two or more charge/discharge devices associated with a single second identification information item are present.