Title:
【発明の名称】自己探索型遠隔監視システム
Document Type and Number:
Japanese Patent JP2001527663
Kind Code:
A
Abstract:
A personal alarm system includes a monitoring base station and one or more remote sensing units in two-way radio communication. An electronic handshake between the base station and each remote unit is used to assure system reliability. The remote units transmit at selectable power levels. In the absence of an emergency, a remote unit transmits at a power-conserving low power level. Received field strength is measured to determine whether a remote unit has moved beyond a predetermined distance from the base station. If the distance is exceeded, the remote unit transmits at a higher power level. The remote unit includes sensors for common hazards including water immersion, smoke, excessive heat, excessive carbon monoxide concentration, and electrical shock. The base station periodically polls the remote units and displays the status of the environmental sensors. The system is useful in child monitoring, for use with invalids, and with employees involved in activities which expose them to environmental risk. Alternative embodiments include a panic button on the remote unit for summoning help, and an audible beacon on the remote unit which can be activated from the base station and useful for locating strayed children. In another embodiment, the remote unit includes a Global Positioning System receiver providing location information for display by the base station.
Inventors:
Schlager dan
Burlinger William Bee
Burlinger William Bee
Application Number:
JP51472496A
Publication Date:
December 25, 2001
Filing Date:
October 26, 1995
Export Citation:
Assignee:
Schlager dan
Burlinger William Bee
Burlinger William Bee
International Classes:
G01C21/00; A61B5/00; B63C9/00; G01S19/09; G01S19/35; G08B13/14; G08B19/00; G08B21/02; G08B25/10; G08B26/00; G08G1/13; (IPC1-7): G08B21/02; A61B5/00; G01C21/00; G08G1/13
Attorney, Agent or Firm:
Minoru Nakamura (6 outside)