Tap, meter and transformation device for power distribution from HFC plant
A power metering device includes a tap unit including a clamp for engaging a coaxial cable and a probe for electrically coupling to a center conductor of the coaxial cable without damaging the center conductor. A power consumption meter and a power port are electrically connected to the probe. A power transformer is optionally connected between the probe and the power port. A housing surrounds the meter and transformer. The power port supplies power to a customer device, and the meter measures an amount of power passing through the power port. The power consumed by the customer device is reported by the meter to a modem within the housing. The modem may utilize the probe and the center conductor of the coaxial cable to send power consumption data to a service provider, so that an operator of the customer device may be billed and/or the customer device may be controlled to limit its power consumption. Further, the modem may transfer data between the customer device and the service provider.
1. A power metering device comprising:
a tap unit including a clamp for engaging onto a coaxial cable and a probe for electrically coupling to a center conductor of the coaxial cable;
a power consumption meter electrically connected to said probe;
an outer housing surrounding said power consumption meter; and
a power port electrically connected to said probe, said power port for supplying power taken from the center conductor of the coaxial cable to a customer device connected to said power port, wherein said power consumption meter measures an amount of power passing through said probe or passing through said power port.
2. The power metering device of claim 1 , wherein said power port is a first power port attached to said outer housing, and further comprising:
a second power port attached to said outer housing, and wherein said power consumption meter measures the power passing through said first power port and separately measures the power passing through said second power port.
3. The power metering device of claim 1 , wherein said probe includes a conductive element for electrically engaging the center conductor of the coaxial cable.
4. The power metering device of claim 3 , wherein said conductive element has a sharp end for penetrating an insulation layer surrounding the center conductor of the coaxial cable.
5. The power metering device of claim 1 , wherein said probe includes an inductive element for inductively coupling to the center conductor of the coaxial cable.
6. The power metering device of claim 1 , wherein said tap unit clamps onto an exterior of a jacket of the coaxial cable, and wherein said tap unit is surrounded by a tap unit housing, wherein said outer housing includes a pocket dimensioned to accept said tap unit housing, and wherein said outer housing is attached to said tap unit housing after said tap unit is clamped onto the coaxial cable and nested into said pocket.
7. The power metering device of claim 1 , further comprising:
a power transformer electrically connected between said probe and said power port, wherein said transformer changes one or more characteristics of power provided by the center conductor of the coaxial cable before the power is supplied to said power port, wherein said one or more characteristics includes at least one of converting an AC power signal to a DC power signal, changing a voltage level of a power signal, changing a wave form profile of a power signal, and changing a frequency of a power signal.
8. The power metering device of claim 1 , further comprising:
a modem electrically connected to said probe and to said power consumption meter, wherein said modem receives a measured amount of power from said power consumption meter and transmits the measured amount to a service center via the center conductor of the coaxial cable.
9. The power metering device of claim 8 , wherein said modem is also electrically connected to a communication port which communicates data to and from the customer device connected to said power port.
10. The power metering device of claim 9 , wherein said power port also serves as said communication port.
11. The power metering device of claim 1 , further comprising:
a power transformer electrically connected between said probe and said power port, wherein said transformer changes one or more characteristics of power provided by the center conductor of the coaxial cable before the power is supplied to said power port; and
a modem electrically connected to said probe and to said power consumption meter, wherein said modem receives a measured amount of power from said power consumption meter and transmits the measured amount to a service center via the center conductor of the coaxial cable, wherein said power transformer and said modem are surrounded by said outer housing.
12. A method of metering power consumption from a coaxial cable comprising:
providing a tap unit;
clamping the tap unit on a coaxial cable;
electronically coupling a probe of the tap unit to a center conductor of the coaxial cable;
connecting a customer device to a power port, which is electrically connected to the probe; and
measuring an amount of power passing through the probe or passing through the power port.
13. The method of claim 12 , further comprising:
reporting the measured amount of power to a service center; and
billing an operator of the customer device for the measured amount of power usage.
14. The method of claim 12 , wherein the customer device is a first customer device and the power port is a first power port and wherein said measuring is accomplished by measuring an amount of power passing through the first power port, and further comprising:
connecting a second customer device to a second power port, which is electrically connected to the probe;
measuring an amount of power passing through the second power port;
reporting a first measured amount of power passing through the first port to a service center;
reporting a second measured amount of power passing through the second port to the service center;
billing a first operator of the first customer device for the first measured amount of power usage; and
billing a second operator of the second customer device for the second measured amount of power usage.
15. The method of claim 12 , further comprising:
providing a power transformer electrically connected between the probe and the power port; and
modifying one or more characteristics of power provided by the center conductor of the coaxial cable before the power is supplied to the power port, wherein said modifying includes at least one of converting an AC power signal to a DC power signal, changing a voltage level of a power signal, changing a wave form profile of a power signal, and changing a frequency of a power signal.
16. A power metering device comprising:
a tap unit including a clamp for engaging onto a coaxial cable and a probe for electrically coupling to a center conductor of the coaxial cable;
a power port electrically connected to said probe, said power port for supplying power taken from the center conductor of the coaxial cable to a customer device connected to said power port;
a power transformer electrically connected between said probe and said power port, wherein said transformer changes one or more characteristics of power provided by the center conductor of the coaxial cable before the power is supplied to said power port; and
an outer housing surrounding said power transformer.
17. The power metering device of claim 16 , wherein said power port is a first power port attached to said outer housing, and further comprising:
a second power port attached to said outer housing, wherein said power transformer changes one or more characteristics of power provided by the center conductor of the coaxial cable before the power is supplied to said first power port, wherein said power transformer changes one or more characteristics of power provided by the center conductor of the coaxial cable before the power is supplied to said second power port, and wherein power supplied by said second port has different characteristics than power supplied by said first port.
18. The power metering device of claim 16 ,
wherein said probe includes a conductive element for electrically engaging the center conductor of the coaxial cable, and wherein said conductive element has a sharp end for penetrating an insulation layer surrounding the center conductor of the coaxial cable, or
wherein said probe includes an inductive element for inductively coupling to the center conductor of the coaxial cable.
19. The power metering device of claim 16 , wherein said tap unit clamps onto an exterior of a jacket of the coaxial cable, wherein said tap unit is surrounded by a tap unit housing, wherein said outer housing includes a pocket dimensioned to accept said tap unit housing, and wherein said outer housing is attached to said tap unit housing after said tap unit is clamped onto the coaxial cable and nested into said pocket.
20. The power metering device of claim 16 , wherein said one or more characteristics includes at least one of converting an AC power signal to a DC power signal, changing a voltage level of a power signal, changing a wave form profile of a power signal, and changing a frequency of a power signal.