POWER MEASURING APPARATUS, POWER MEASURING SYSTEM, AND POWER MEASURING METHOD
First Claim
1. A power measuring apparatus comprising:
- a line connector connected to a line supplying power to equipment;
a measurer for measuring current and voltage impressed on the equipment by the line connected thereto;
a calculator for calculating power consumed by the equipment based on the measured voltage and current;
a transmission line connector connected to a monitoring transmission line over which data used in monitoring the equipment is transmitted and which is connected to the equipment; and
a transmitter for transmitting data indicating the calculated power to the monitoring transmission line.
1 Assignment
0 Petitions
Accused Products
Abstract
A power measuring apparatus includes a line connector connected to a power source line, which supplies power to equipment; and a measuring circuit, which measures a voltage and a current supplied to the equipment by means of the connected power source line. The power measuring apparatus also includes a calculator which calculates, on the basis of the measured voltage and current, power consumed by the equipment; and a transmission line connector connected to a transmission line that transmits data used for the purpose of monitoring the equipment. Furthermore, the power measuring apparatus also includes a transmitter that transmits data indicating the calculated power to the transmission line. Consequently, the power measuring apparatus can be installed in equipment at lower cost than before.
30 Citations
8 Claims
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1. A power measuring apparatus comprising:
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a line connector connected to a line supplying power to equipment; a measurer for measuring current and voltage impressed on the equipment by the line connected thereto; a calculator for calculating power consumed by the equipment based on the measured voltage and current; a transmission line connector connected to a monitoring transmission line over which data used in monitoring the equipment is transmitted and which is connected to the equipment; and a transmitter for transmitting data indicating the calculated power to the monitoring transmission line. - View Dependent Claims (2, 3, 4, 5)
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6. A power measuring system comprising:
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a power measuring apparatus connected to a line supplying power to equipment and a monitoring transmission line over which data used in monitoring the equipment is transmitted and which is connected to the equipment, the apparatus transmitting to the monitoring transmission line data indicating power consumed by the equipment as calculated based on measured values of current and voltage impressed on the equipment by the line; and a controller for controlling operation of the equipment based on consumed power indicated by the transmitted data. - View Dependent Claims (7)
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8. A power measuring method including:
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a measuring step in which current and voltage impressed on equipment by a line supplying power to the equipment is measured; a calculating step in which power consumed by the equipment based on the measured current and voltage is calculated; and a transmitting step in which data indicating the calculated power is transmitted to a monitoring transmission line over which data used in monitoring the equipment is transmitted and which is connected to the equipment.
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Specification