CA2110353A1 - Wireless system for sensing information at remote locations and communicating with a main monitoring center - Google Patents

Wireless system for sensing information at remote locations and communicating with a main monitoring center

Info

Publication number
CA2110353A1
CA2110353A1 CA2110353A CA2110353A CA2110353A1 CA 2110353 A1 CA2110353 A1 CA 2110353A1 CA 2110353 A CA2110353 A CA 2110353A CA 2110353 A CA2110353 A CA 2110353A CA 2110353 A1 CA2110353 A1 CA 2110353A1
Authority
CA
Canada
Prior art keywords
remote
portable
monitor
central
attendants
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2110353A
Other languages
French (fr)
Other versions
CA2110353C (en
Inventor
David M. Lamensdorf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SAFE ENVIRONMENT ENGINEERING
Original Assignee
SAFE ENVIRONMENT ENGINEERING
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SAFE ENVIRONMENT ENGINEERING filed Critical SAFE ENVIRONMENT ENGINEERING
Publication of CA2110353A1 publication Critical patent/CA2110353A1/en
Application granted granted Critical
Publication of CA2110353C publication Critical patent/CA2110353C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/016—Personal emergency signalling and security systems

Abstract

A system for sensing information at a plurality remote, typically hazardous, locations and transmitting the sensed information to a main monitoring center. Remote portable "attendants" that take the place of a human safety monitor are carried by persons at the remote locations. The portable attendants produce an audible and/or visual warning to the operator at selected times. If the operator does not acknowledge the warning within a selected time, an alarm signal is sounded and is sent to the main central by radio for processing in a central processing unit (CPU). The CPU directs an appropriate safety response and may open a voice radio circuit between central operators and the remote monitor location. A switch is provided so that the remote operator can manually trigger the alarm. A gas sensor which can detect and measure the level of a selected gas may be included at the remote monitor, with the capability of sounding an alarm at the portable attendant and transmitting an alarm signal to the CPU identifying the gas and indicating the level. Sensors for similarly monitoring effectiveness of a ventilation system at the remote location can be provided. Finally, the arrangement for receiving and transmitting radio signals from the central monitor may include a plurality of spaced spread spectrum radio frequency transmitter/receivers to permit the location of the portable remote attendants to be rapidly determined.
CA002110353A 1993-05-27 1993-11-30 Wireless system for sensing information at remote locations and communicating with a main monitoring center Expired - Fee Related CA2110353C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/068,921 US5568121A (en) 1993-05-27 1993-05-27 Wireless system for sensing information at remote locations and communicating with a main monitoring center
US068,921 1993-05-27

Publications (2)

Publication Number Publication Date
CA2110353A1 true CA2110353A1 (en) 1994-11-28
CA2110353C CA2110353C (en) 1999-07-13

Family

ID=22085563

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002110353A Expired - Fee Related CA2110353C (en) 1993-05-27 1993-11-30 Wireless system for sensing information at remote locations and communicating with a main monitoring center

Country Status (2)

Country Link
US (1) US5568121A (en)
CA (1) CA2110353C (en)

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WO2005048209A1 (en) * 2003-11-17 2005-05-26 Robert Cassin Mcfadden Mobile radiation surveillance network

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Also Published As

Publication number Publication date
US5568121A (en) 1996-10-22
CA2110353C (en) 1999-07-13

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