Power control device, power management device and power management system

• US 10,564,661 B2
• Filed: 04/20/2016
• Issued: 02/18/2020
• Est. Priority Date: 06/03/2011
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Katagi, Masanobu, Ukita, Masakazu, Moriai, Shiho, Yoshida, Asami
• Primary Examiner(s): Hartman, Jr., Ronald D
• Application Number:
  US15/133,782
• Publication Number:
  US 20160313754A1
• Time in Patent Office: 1,399 Days
• CPC Class Codes: G05F 1/66 Regulating electric power
• CPC Class Codes: H02J 3/008 involving trading of energy or energy transmission rights
• CPC Class Codes: H02J 3/32 using batteries with converting means
• CPC Class Codes: H04L 63/0428 wherein the data content is protected, e.g. by encrypting or encapsulating the payload
• CPC Class Codes: H04L 63/0435 wherein the sending and receiving network entities apply symmetric encryption, i.e. same key used for encryption and decryption cryptographic mechanisms or cryptographic arrangements for symmetric key encryption H04L9/06
• CPC Class Codes: H04L 63/0869 for achieving mutual authentication cryptographic mechanisms or cryptographic arrangements for mutual authentication H04L9/3273
• CPC Class Codes: H04L 63/0876 based on the identity of the terminal or configuration, e.g. MAC address, hardware or software configuration or device fingerprint
• CPC Class Codes: Y04S 40/20 Information technology specific aspects, e.g. CAD, simulation, modelling, system security
• CPC Class Codes: Y04S 50/10 Energy trading, including energy flowing from end-user application to grid

Abstract

A power control device forms energy storage equipment together with a storage battery. The power control device includes: a communication portion that communicates with a power management device, which manages charge and discharge of the storage battery; a power conditioner that supplies electricity to a predetermined destination for supply; a control portion that controls operation of the power conditioner based on instructions from the power management device that are received by the communication portion; and an authentication processing portion that performs authentication processing with the power management device.

Claims

1. A power control device, comprising:

a communication portion configured to receive first information and a first message authentication code (MAC) from a power management device, wherein

charge and discharge of a storage battery is managed by the power management device, and

the first MAC is generated by the power management device based on the first information;

a power conditioner configured to supply electricity to a specific destination;

a control portion configured to control operation of the power conditioner based on the first information; and

an authentication processing portion configured to execute an authentication process with the power management device based on the first information.

2. The power control device according to claim 1, further comprising:

an encryption processing portion configured to encrypt second information based on the authentication process; and

a verification data generation portion configured to generate verification data used to verify whether the second information has been tampered with,

wherein the communication portion is further configured to transmit the verification data and the second information to the power management device.

3. The power control device according to claim 1, further comprising a verification processing portion configured to:

calculate a second MAC based on the first information; and

verify whether the first information has been tampered with, based on the first MAC and the second MAC.

4. The power control device according to claim 2, wherein a validity of the power control device is based on the verification data.