Wireless power line communication apparatus

• US 4,644,321 A
• Filed: 10/22/1984
• Issued: 02/17/1987
• Est. Priority Date: 10/22/1984
• Status: Expired due to Fees

• Current Assignee: ABB Power T&D Co Inc (ABB Limited)
• Original Assignee: Westinghouse Electric Corporation (Paramount Global (f/k/a ViacomCBS Inc.))
• Inventors: Kennon, Jerry M.
• Primary Examiner(s): Olms, Douglas W.
• Assistant Examiner(s): Kuntz, Curtis
• Application Number:
  US06/663,252
• Time in Patent Office: 848 Days
• Field of Search: 340/310 A, 340/310 R, 340/310 CP, 340/696, 340/870.02
• US Class Current: 375/258
• CPC Class Codes: H02J 13/00009 using pulsed signals
• CPC Class Codes: H02J 13/00034 the elements or equipment being or involving an electric power substation
• CPC Class Codes: H04B 5/28 using the near field of leaky cables, e.g. of leaky coaxial cables
• CPC Class Codes: Y02E 60/00 Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
• CPC Class Codes: Y04S 40/121 using the power network as support for the transmission

Abstract

A field configuration terminal is provided that does not require physical or electrical connection to a remote device of a power line communication system. A toroid is provided that comprises a multiplicity of turns of a conductor that is connected in electrical communication with an amplifier and receiver circuitry within the field configuration terminal. A battery, with associated power supply components, provides a direct current source for the microprocessor and logic of the field configuration terminal and for the amplifier thereof. The toroid of the field configuration terminal is shaped to be disposed around a load management terminal of a power line communication system without physical or electrical contact therewith. Signals are transmitted to and received from the load management terminal by inductively coupling the toroid with the load management terminal in signal communication.

Claims

1. Power line carrier communications apparatus, comprising:

means for modulating a first carrier signal with a baseband message;

means for amplifying said first modulated carrier signal, said amplifying means having an input connected to an output of said modulating means;

means for inductively coupling said first modulated carrier signal to a power line communications device having a receiver;

said coupling means being configured to induce said first modulated carrier signal within conductive components of said power line communications device when said coupling means is disposed proximate said power line communications device and said first modulated signal is amplified by said amplifying means even when said coupling means is physically and electrically disconnected from said conductive components, said coupling means being removably locatable proximate said power line communications device; and

said amplifying means being electrically connected to said coupling means and configured to transmit said first modulated carrier signal to said coupling means.

2. The apparatus of claim 1, wherein:

said coupling means comprises a conductor having a multiplicity of turns.

3. The apparatus of claim 1, further comprising:

means for receiving a second modulated carrier signal;

means for demodulating said second modulated carrier signal, said demodulating means being operatively associated with said receiving means; and

said receiving means being electrically connected to said coupling means.

4. The apparatus of claim 1, further comprising:

display means for representing digital message information relating to said first modulated carrier signal, said display means being operatively associated with said demodulating means.

5. The apparatus of claim 1, further comprising:

means for manually entering a message into said apparatus, said entering means being operatively associated with said modulating means.

6. The apparatus of claim 5, wherein:

said entering means comprises a keyboard.