Power supply device and method, and program

• US 9,806,531 B2
• Filed: 05/01/2012
• Issued: 10/31/2017
• Est. Priority Date: 05/16/2011
• Status: Expired due to Fees

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Washiro, Takanori, Takemura, Kazuyoshi, Soma, Isao
• Primary Examiner(s): Masinick, Michael D
• Application Number:
  US14/116,958
• Publication Number:
  US 20140074308A1
• Time in Patent Office: 2,009 Days
• CPC Class Codes: B60L 2210/30 AC to DC converters
• CPC Class Codes: B60L 2210/40 DC to AC converters
• CPC Class Codes: B60L 2240/70 Interactions with external data bases, e.g. traffic centres
• CPC Class Codes: B60L 2250/16 by display
• CPC Class Codes: B60L 53/11 DC charging controlled by the charging station, e.g. mode 4
• CPC Class Codes: B60L 53/16 Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
• CPC Class Codes: B60L 53/18 Cables specially adapted for charging electric vehicles
• 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 53/63 in response to network capacity
• CPC Class Codes: B60L 53/64 Optimising energy costs, e.g. responding to electricity rates
• CPC Class Codes: B60L 53/65 involving identification of vehicles or their battery types
• CPC Class Codes: B60L 53/665 Methods related to measuring, billing or payment
• CPC Class Codes: G06Q 30/04 Billing or invoicing
• CPC Class Codes: G06Q 50/06 Energy or water supply
• CPC Class Codes: H02J 2310/48 for electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: H02J 4/00 Circuit arrangements for mains or distribution networks not specified as ac or dc
• CPC Class Codes: H02J 7/00034 Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
• CPC Class Codes: H02J 7/00045 Authentication, i.e. circuits for checking compatibility between one component, e.g. a battery or a battery charger, and another component, e.g. a power source
• CPC Class Codes: H02J 7/00712 the cycle being controlled or terminated in response to electric parameters
• CPC Class Codes: H04B 2203/5416 : by adding signals to the wave form of the power source
• CPC Class Codes: H04B 2203/5445 : Local network
• CPC Class Codes: H04B 3/548 : the power on the line being DC arrangements for feeding power H04L12/10; extracting feeding power from signals H04L25/02
• CPC Class Codes: Y02E 60/00 : Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
• 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 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 10/126 : the energy generation units being or involving electric vehicles [EV] or hybrid vehicles [HEV], i.e. power aggregation of EV or HEV, vehicle to grid arrangements [V2G]
• CPC Class Codes: Y04S 30/14 : Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing

Abstract

A control unit controls a reader/writer to generate a vehicle ID read signal that is formed of a high frequency signal and used to read a vehicle ID recorded in an ID circuit, and supply the signal to a high-pass filter. The read signal or a write signal formed of the high frequency signal is superimposed on a power supply line and supplied to the high-pass filter. The high-pass filter supplies the vehicle ID read signal formed of the high frequency signal to the ID circuit. On the basis of the read signal, the ID circuit reads the vehicle ID stored in an IC built in the own circuit and transmits it as a response signal to a charger along a reverse path. An authentication part of the control unit turns on a selector switch when the vehicle ID being the response signal is determined to be legitimate.

Claims

1. A power supply device comprising:

a switching unit which turns on/off an electric power supplied to a device through a power supply line;

a reader/writer unit which reads a device ID from a storage unit of the device powered by means of load modulation using a high frequency signal through the power supply line; and

a control unit which performs control to turn on the switching unit and supply the first electric power to the device through the power supply line when the device ID having been read by the reader/writer unit is authenticated,

wherein the storage unit is configured to receive power from the high frequency signal.

2. A power supply device comprising:

a power supply unit which supplies an electric power from a commercial power supply to a device through a power supply line;

a switching unit which turns on/off the electric power supplied from the power supply unit to the device through the power supply line;

a reader/writer unit which reads a device ID from a storage unit of the device powered by means of load modulation using a high frequency signal through the power supply line, or writes information into the storage unit included in the device;

an authentication part which performs authentication on the device ID having been read by the reader/writer unit; and

a control unit which performs control to turn on the switching unit and supply the first electric power from the power supply unit to the device through the power supply line when the device ID is authenticated by the authentication part,

wherein the storage unit is configured to receive power from the high frequency signal.

3. The power supply device according to claim 2, further comprising a registration part which registers the device ID of the device owned by an owner when it is recognized that the owner of the device has a right to receive the electric power supply.

4. The power supply device according to claim 2, wherein the control unit turns off the switching unit and discontinues supplying electric power when the power supply line is pulled out of the device.

5. The power supply device according to claim 2, further comprising an adapter which supplies electric power supplied through the power supply line to the device, wherein

the reader/writer unit reads the device ID stored in a storage unit of the adapter connected to the device, and the storage unit is powered by means of load modulation using the high frequency signal that is supplied through the power supply line, or writes information into the storage unit of the adapter.

6. The power supply device according to claim 2, wherein the storage unit includes an IC card.

7. A power supply method comprising:

a power supply step in which a power supply unit supplies an electric power from a commercial power supply to a device through a power supply line;

a switching step in which a switching unit turns on/off the electric power supplied to the device through the power supply line;

a read/write step in which a reader/writer unit reads a device ID is read from a storage unit of the device powered by means of load modulation using a high frequency signal through the power supply line or writes information into the storage unit of the device;

an authentication step in which an authentication part performs authentication on the device ID having been read by the process performed in the read/write step; and

a control step in which a control unit controls to turn on the process performed in the switching step and supply the electric power to the device through the power supply line by the process performed in the power supply step when the authentication is granted by the process performed in the authentication step,

wherein the power supply device includes;

the power supply unit which supplies the electric power from the commercial power supply to the device through the power supply line;

the switching unit which turns on/off the electric power supplied from the power supply unit to the device through the power supply line;

the reader/writer unit which reads the device ID from the storage unit of the device powered by means of load modulation using the high frequency signal through the power supply line or writes information into the storage unit of the device;

the authentication part which performs authentication on the device ID having been read by the reader/writer unit; and

the control unit which controls to turn on the switching unit and supply the electric power from the power supply unit to the device through the power supply line when the authentication is granted by the authentication part, and

wherein the storage unit is configured to receive power from the high frequency signal.

8. A non-transitory computer readable storage medium storing a program which causes a computer controlling a power supply device to execute a process comprising:

a power supply step in which a power supply unit supplies an electric power from a commercial power supply to a device through a power supply line;

a switching step in which a switching unit turns on/off the electric power supplied to the device through the power supply line by the process performed in the power supply step;

a read/write step in which a reader/writer unit reads a device ID from a storage unit of the device powered by means of load modulation using a high frequency signal through the power supply line or writes information into the storage unit of the device;

an authentication step in which an authentication part performs authentication on the device ID having been read by the process performed in the read/write step; and

a control step in which a control unit performs control to turn on the process performed in the switching step and supply the electric power to the device through the power supply line by the process performed in the power supply step when the authentication is granted by the process performed in the authentication step, wherein

the power supply device includes;

the power supply unit which supplies the electric power from the commercial power supply to the device through the power supply line;

the switching unit which turns on/off the electric power supplied from the power supply unit to the device through the power supply line;

the reader/writer unit which reads the device ID from the storage unit of the device powered by means of load modulation using the high frequency signal through the power supply line or writes the information into the storage unit of the device;

the authentication part which performs authentication on the device ID having been read by the reader/writer unit; and

the control unit which performs control to turn on the switching unit and supply the electric power from the power supply unit to the device through the power supply line when the authentication is granted by the authentication part, and

wherein the storage unit is configured to receive power from the high frequency signal.