| 摘要 |
A testing system for a plurality of electric circuits, such as those, for example, powered by circuit breakers or fuses in a building structure, is disclosed. A receiver module includes a battery-powered microprocessor that includes a radio receiver interconnected with an antenna, as well as a plurality of indicator LEDs. A plurality of transmitter modules is included, each of which includes a microprocessor powered by a transformer connected to at least two power prongs for drawing power from a conventional power outlet, or to a standard light bulb threaded base for drawing power from a conventional light bulb socket. The microprocessor of each transmitter module includes a radio transmitter interconnected with an antenna which transmits a confirmation signal when the transmitter module is receiving power. The confirmation signal of each transmitter module includes a unique differentiating component. As such, the radio receiver of the receiver module detects the confirmation signal and the differentiating component from each transmitter module and thereby distinguishes the confirmation signals of each transmitter module from each other transmitter module. For those transmitter modules for which a confirmation signal is received, the corresponding indicator LED is activated to alert the user which transmitter modules are currently transmitting at any given testing time.
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