Dual direction power and data transfer protocol and safety detection

• US 7,907,062 B2
• Filed: 01/31/2008
• Issued: 03/15/2011
• Est. Priority Date: 01/31/2008
• Status: Active Grant

• Current Assignee: JP Morgan Chase Bank, N.A. (JP Morgan Chase & Co)
• Original Assignee: Hitachi Global Storage Technologies Netherlands BV (Western Digital Corporation)
• Inventors: Lee, Sylvia Lui, Flechsig, Karl Arthur, Gillis, Donald Ray, Feliss, Norbert A.
• Primary Examiner(s): Vu; Bao Q
• Application Number:
  US12/023,882
• Publication Number:
  US 20090195237A1
• Time in Patent Office: 1,139 Days
• Field of Search: 340/693.6, 340/693.5, 340/500, 340/540, 340/531, 340/657
• US Class Current: 340/693.6
• CPC Class Codes: B60L 2240/36 Temperature of vehicle components or parts
• CPC Class Codes: B60L 2250/10 by alarm
• CPC Class Codes: B60L 3/0069 relating to the isolation, e.g. ground fault or leak current
• CPC Class Codes: B60L 3/04 Cutting off the power supply under fault conditions protective devices and circuit arrangements in general H01H; H02H
• CPC Class Codes: B60L 53/16 Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
• CPC Class Codes: B60L 53/305 Communication interfaces
• CPC Class Codes: B60L 53/62 in response to charging parameters, e.g. current, voltage or electrical charge
• CPC Class Codes: B60L 53/68 Off-site monitoring or control, e.g. remote control
• CPC Class Codes: H02H 5/04 responsive to abnormal temperature specially adapted for electric machines H02H7/0852
• 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 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

Abstract

A device for monitoring the condition of a power outlet and for reducing or interrupting power in the event that a condition of the outlet circuitry indicates that a potentially dangerous situation exists. The device can also include a reporting function to alert a user as to the existence of the dangerous condition.

Claims

1. An apparatus for supplying power to an appliance, the apparatus comprising:

power plug, having a plurality of tines;

a power cord connected with the plurality of tines;

a temperature sensor connected with the power plug; and

a controller, in communication with a the temperature sensor to receive a signal corresponding to the temperature of the power plug, the controller being operable to control an amount of power delivered through the power cord if the signal from the temperature sensor exceeds a predetermined threshold.

2. An apparatus as in claim 1 wherein the temperature sensor is a thermal sensing circuit.

3. An apparatus as in claim 1 wherein the temperature sensor is connected with a tine of the power plug.

4. An apparatus as in claim 1 wherein the temperature sensor is a thermistor that is connected with a tine of the power plug.

5. An apparatus as in claim 1 wherein the communication between the temperature sensor is provided by at least one electrical lead that electrically connects the temperature sensor with the controller.

6. An apparatus as in claim 1 wherein the power cord comprises a plurality of electrically conductive leads used as sensor data lines;

a power line receiver, electrically connected with the at least one lead of the power cord and also connected with the controller, the power line transmitter and power line receiver providing the communication between the temperature sensor and the controller.

7. An apparatus as in claim 1 further comprising circuitry for identifying a power connector into which the plug has been connected.

8. An apparatus as in claim 1 further comprising circuitry for identifying an electrical circuit receptacle into which the a plug has been connected based upon a spectral signature of circuitry associated with the power connector.

9. An apparatus as in claim 1 further comprising circuitry for recognizing an power connector into which the plug has been connected, by recognizing an RFID tag associated with the power connector.

10. An apparatus as in claim 1 further comprising circuitry for recognizing a power connector into which the plug has been connected based on geographical data provided by a global positioning satellite (GPS) system.

11. An apparatus as in claim 1 further comprising circuitry connected with the temperature sensor for alerting a user if a sensed temperature exceeds a predetermined threshold.

12. An apparatus as in claim 1 further comprising circuitry for recognizing and storing circuit parameters of an power connector into which the plug is connected, wherein storage is used to retain these critical circuitry parameters.

13. An apparatus as in claim 1 wherein the circuit parameters include a power level for a circuit breaker trip level of a circuit breaker associated with the power connector.

24. An apparatus as in claim 1 further comprising Emergency Override circuitry that is functional to provide control of power when a temperature exceeds a threshold and that provides information that is useful for diagnostics.

30. An apparatus as in claim 1 further comprising circuitry for remotely reporting a circuit condition based on the circuit parameter, the remote reporting being delivered to a computer server broadcasting a webpage to display adjustable parameters for all critical links to the home circuitry, the adjustable parameters including one or more of the status of mechanical and electrical faults of the circuitry;

transmission of critical information to other users in case of pending alarm conditions; and

the number of power connections with specified locations of each power connection.

33. An apparatus as in claim 1 further comprising the linkage to a computer server broadcasting a webpage to display adjustable parameters for all critical links to the home circuitry, these can include the status of mechanical and electrical faults of the circuitry, and transmission of critical information to other users in case of pending alarm conditions (i.e., unsafe temperatures have been reached), wherein the number of power connections are also displayed which give the specifics of each location and includes the before and after power levels after setup.

14. An apparatus for supplying power to an appliance, the apparatus comprising:

power plug, having a plurality of tines;

a power cord connected with the plurality of tines;

a circuit parameter disconnected with the power plug; and

connected with the temperature sensor and communicate to alert a user if a sensed temperature exceeds a predetermined threshold.

15. An apparatus for supplying power to an appliance, the apparatus comprising:

power plug, having a plurality of tines;

a power cord connected with the plurality of tines;

a detection circuitry, connected with the power plug, the detection circuitry being functional to monitor a circuit parameter; and

a controller, in communication with a the detection circuitry to receive a signal corresponding to the circuit parameter, the controller being operable to control an amount of power delivered through the power cord if the signal from the detection circuitry exceeds a predetermined threshold.

16. An apparatus as in claim 15 wherein the circuit parameter comprises an impedance of an outlet into which the plug is connected.

17. An apparatus as in claim 15 wherein the circuit parameter comprises a voltage drop between the plug and an outlet into which the plug is connected.

18. An apparatus as in claim 15 further comprising circuitry for alerting a user if the circuit parameter exceeds the predetermined threshold.

19. An apparatus as in claim 15 further comprising, circuitry for storing and recalling the circuit parameters.

20. An apparatus as in claim 15 further comprising circuitry for recognizing an outlet into which the plug is connected.

21. An apparatus as in claim 15 further wherein the detection circuitry comprises circuitry for measuring a voltage of an electrical outlet.

22. An apparatus as in claim 21 further comprising circuitry for determining that an excessively high resistance exists when circuitry for measuring the voltage detects a predetermined voltage threshold has been reached.

23. An apparatus as in claim 21 further comprising circuitry operable to identify the signature of the circuit via a Time Domain Reflectometer or Spectral Signature to give an identification of the location where there is a problem.

25. An apparatus as in claim 15 further comprising:

logic for determining that the circuit parameter has exceeded a first parameter threshold and for reducing power delivery and reporting that a first level has been exceeded in the event that the circuit parameter has exceeded the first threshold; and

logic for determining that the circuit parameter has exceeded a second parameter threshold and for interrupting power delivery in the event that the circuit parameter exceeds the second parameter threshold.

26. An apparatus as in claim 25 further comprising logic for reporting that the second parameter threshold has been exceeded.

27. An apparatus as in claim 25 further comprising logic for identifying a unique circuit breaker and for communicating an imminent trip condition of the unique circuit breaker.

28. An apparatus as in claim 25 that allows the power to be transferred to a power distribution grid.

29. An apparatus as in claim 15 further comprising circuitry for remotely reporting a circuit condition based on the circuit parameter, the remote reporting being delivered to one or more of the following:

computer email, wireless pager, computer network server/webpage, and hardware landline phone link.

31. An apparatus as in claim 15 further comprising data storage and circuitry for identifying a specific circuit and for storing information regarding the circuit.

32. An apparatus as in claim 31 wherein the specific circuit information includes a circuit breaker trip level, the device further including circuitry for keeping power delivery below the circuit breaker trip level.