SE9000243A - - Google Patents

Info

Publication number
SE9000243A
SE9000243A SE9000243A SE9000243A SE9000243A SE 9000243 A SE9000243 A SE 9000243A SE 9000243 A SE9000243 A SE 9000243A SE 9000243 A SE9000243 A SE 9000243A SE 9000243 A SE9000243 A SE 9000243A
Authority
SE
Sweden
Prior art keywords
central unit
changes
measuring units
detectors
levels
Prior art date
Application number
SE9000243A
Other versions
SE9000243D0 (en
SE468870B (en
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 filed Critical
Priority to SE9000243A priority Critical patent/SE468870B/en
Publication of SE9000243D0 publication Critical patent/SE9000243D0/en
Priority to PCT/SE1991/000054 priority patent/WO1991011790A1/en
Publication of SE9000243A publication Critical patent/SE9000243A/xx
Publication of SE468870B publication Critical patent/SE468870B/en

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
    • G08B25/04—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 using a single signalling line, e.g. in a closed loop

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Alarm Systems (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Emergency Alarm Devices (AREA)

Abstract

The invention relates to a monitoring method according to which changes in external conditions, such as temperature, humidity and existance of gases, particles and water, are detected and monitored by at least two detectors (10) connected to a central unit (21), said detectors (10) comprising measuring units (18, 19, 20), and an alarm is triggered in said central unit (21) when adjustable levels of said changes have been recorded in said central unit (21). Said measuring units (18, 19, 20) are connected in parallel to said central unit (21), and said measuring units (18, 19, 20) transmit to said central unit (21) voltage signals of pre-determined strengths when pre-determined levels of changes have occurred.
SE9000243A 1990-01-23 1990-01-23 SETTING AND DEVICE FOR MONITORING OF EXTERNAL DEVICES, SUCH AS TEMPERATURE, MOISTURE AND GAS PREVENTION SE468870B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE9000243A SE468870B (en) 1990-01-23 1990-01-23 SETTING AND DEVICE FOR MONITORING OF EXTERNAL DEVICES, SUCH AS TEMPERATURE, MOISTURE AND GAS PREVENTION
PCT/SE1991/000054 WO1991011790A1 (en) 1990-01-23 1991-01-24 Monitoring method and device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9000243A SE468870B (en) 1990-01-23 1990-01-23 SETTING AND DEVICE FOR MONITORING OF EXTERNAL DEVICES, SUCH AS TEMPERATURE, MOISTURE AND GAS PREVENTION

Publications (3)

Publication Number Publication Date
SE9000243D0 SE9000243D0 (en) 1990-01-24
SE9000243A true SE9000243A (en) 1991-07-25
SE468870B SE468870B (en) 1993-03-29

Family

ID=20378333

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9000243A SE468870B (en) 1990-01-23 1990-01-23 SETTING AND DEVICE FOR MONITORING OF EXTERNAL DEVICES, SUCH AS TEMPERATURE, MOISTURE AND GAS PREVENTION

Country Status (2)

Country Link
SE (1) SE468870B (en)
WO (1) WO1991011790A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2830109A1 (en) * 2001-09-25 2003-03-28 Edmond Jean Benoit Boeuf Surveillance system has independent signaling units

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2119981B (en) * 1982-01-07 1985-08-07 Morrison John M Alarm systems
US4742335A (en) * 1986-06-18 1988-05-03 Baker Industries, Inc. Sequential and/or random polling system with virtually instantaneous response time

Also Published As

Publication number Publication date
SE9000243D0 (en) 1990-01-24
SE468870B (en) 1993-03-29
WO1991011790A1 (en) 1991-08-08

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