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Bluetooth-enable intelligent electronic device

  • US 8,515,348 B2
  • Filed: 10/30/2006
  • Issued: 08/20/2013
  • Est. Priority Date: 10/28/2005
  • Status: Active Grant
First Claim
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1. An intelligent electronic device comprising:

  • at least one sensor coupled to an electrical circuit configured for measuring at least one power parameter of the electrical circuit and generating at least one analog signal indicative of the at least one power parameter;

    at least one analog to digital converter coupled to the at least one sensor configured for receiving the at least one analog signal and converting the at least one analog signal to at least one digital signal;

    a processor configured for receiving the at least one digital signal and calculating energy consumption data in the electrical circuit;

    a transceiver configured for receiving the calculated energy consumption data from the processor and wirelessly transmitting the calculated energy consumption data via a spread-spectrum frequency hopping technique to a portable remote reading device, wherein the portable remote reading device is configured to be carried throughout a particular geographical area and wirelessly communicate with a plurality of intelligent electronic devices located within the particular geographical area, wherein the portable remote reading device is further configured to store records related to the plurality of intelligent electronic devices in the particular geographical area, wherein the stored records comprise a plurality of different identifiers, a plurality of different locations, and a plurality of different passkeys, each one of the identifiers identifying a specific one of the plurality of intelligent electronic devices, each one of the locations associated with a specific one of the plurality of intelligent electronic devices, and each one of the passkeys associated with a specific one of the plurality of intelligent electronic devices, wherein each intelligent electronic device has a passkey that is different from the other passkeys, wherein the transceiver is further configured to transmit the calculated energy consumption data to the portable remote reading device in response to the portable remote reading device transmitting the passkey corresponding with the respective intelligent electronic device to the transceiver, and wherein the transceiver is further configured to wirelessly receive upgrade data from the portable remote reading device by a synchronous connection oriented (SCO) type data transmission, the upgrade data enabling the processor to upgrade software on the intelligent electronic device; and

    a cryptographic module configured for establishing a secure wireless communication channel with the portable remote reading device, wherein the cryptographic module auto-negotiates with the portable remote reading device to allow communication between the intelligent electronic device and the portable remote reading device, wherein the cryptographic module is further configured to request a respective passkey associated with the intelligent electronic device and establish the secure wireless communication channel with the portable remote reading device after receiving the respective passkey from the portable remote reading device, and wherein the secure wireless communication channel enables the wireless transmission of the calculated energy consumption data and wireless receipt of upgrade data.

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