초록 ▼

The present invention provides an independent supervised communications network which interfaces with an existing cellular telecommunications network by utilizing locally unused cellular frequencies to report information from a premise to a central monitoring facility. This invention utilizes an inp

The present invention provides an independent supervised communications network which interfaces with an existing cellular telecommunications network by utilizing locally unused cellular frequencies to report information from a premise to a central monitoring facility. This invention utilizes an input device associated with the premise for providing one or more status messages to a transceiver module. The transceiver module may be a modified cellular telephone which is operable in one of three modes; supervision, event and wait. The cellular phone modifications are primarily software changes which provide a logic routine for scanning and selecting an available forward control channel based on a comparison of preselected criteria with measured characteristics and determining a reverse control channel corresponding to the selected forward control channel. The transceiver module transmits the message to the message processor over a predetermined duration, either periodically if the message is a supervision message or continuously if the message is an event message. The message processor, placed at a site proximate to a predetermined cellular site, receives and decodes the messages transmitted from the transceiver module and transmits the messages to a central monitoring facility.

대표청구항 ▼

[ I claim:] [1.] A communications network which utilizes cellular telecommunications network technology for reporting information from a premises to a central monitoring facility, comprising:an input device associated with said premises for providing one or more messages;a cellular transceiver modul

[ I claim:] [1.] A communications network which utilizes cellular telecommunications network technology for reporting information from a premises to a central monitoring facility, comprising:an input device associated with said premises for providing one or more messages;a cellular transceiver module operable with said input device for receiving said one or more messages from said input device and transmitting said one or more messages on a preselected reverse control channel;a message processor placed at a predetermined site for receiving and decoding said one or more messages transmitted from said cellular transceiver module, and transmitting said one or more messages to said central monitoring facility; andwherein said preselected reverse control channel has a corresponding forward control channel, said corresponding forward control channel having a signal strength below a predetermined threshold.