METHOD OF ACTIVATING A SUPPLEMENTAL VISUAL WARNING SIGNAL BASED ON FREQUENCY EMITTED FROM A GENERATOR OF A PRIMARY AUDIBLE WARNING SIGNAL

摘要

A system and method for signaling users including a control device electrically connected to a transceiver. The transceiver has a specified frequency. A first mobile signal device being activated by a first user and electrically communicating with a first transmitter having a selectable signal frequency. The first transmitter electrically communicates with the transceiver using the specified frequency. A second signal device includes a second receiver for receiving an activation signal from the transceiver. The second receiver electrically communicates with the transceiver using the specified frequency. The second signal device is activated by the activation of the first mobile signal device using the transceiver for alerting other persons.

主权项

1. A system to activate supplemental signals in response to primary signals, the system comprising:
a plurality of first signal devices for generating the primary signals, each of the first signal devices being associated with one of a plurality of defined areas to generate one of the primary signals to indicate specified events associated with said one of the plurality of defined areas; a plurality of second signal devices for generating the supplemental signals, each of the second signal devices being associated with one of the first signal devices; one or more transceivers for selectively activating the second signal devices in response to the primary signals generated by the first signal devices, the one or more transceivers having a plurality of adjustable operating frequency; and a control to set the operating frequencies of the one or more transceivers to associate each of the first signal devices with one of the operating frequencies; wherein when each of the first signal devices generates one of the primary signals to indicate one of the specified events relating to the one of the defined areas associated with said each first mobile signal device, said each first signal device sends an event signal to the one or more transceivers at the operating frequency associated with said each first signal device, and in response, the one or more of the transceivers sends an activation signal to the one or more of the second signal devices associated with the each of the first signal devices, and each of the one or more of the second signal devices generates one of the supplemental signals to confirm that said each of the first signal devices has generated one of the primary signals to indicate the one of the specified events related to said one of the defined area.