DE2752469A1 - Intrinsically safe portable alarm - has portable receiver that interacts with alarm transmitter and includes test signal facility - Google Patents

Intrinsically safe portable alarm - has portable receiver that interacts with alarm transmitter and includes test signal facility

Info

Publication number
DE2752469A1
DE2752469A1 DE19772752469 DE2752469A DE2752469A1 DE 2752469 A1 DE2752469 A1 DE 2752469A1 DE 19772752469 DE19772752469 DE 19772752469 DE 2752469 A DE2752469 A DE 2752469A DE 2752469 A1 DE2752469 A1 DE 2752469A1
Authority
DE
Germany
Prior art keywords
alarm
portable
transmitter
intrinsically safe
test signal
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.)
Pending
Application number
DE19772752469
Other languages
German (de)
Inventor
Erhard Dipl Ing Beyerl
Guenter Gerstenberg
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19772752469 priority Critical patent/DE2752469A1/en
Publication of DE2752469A1 publication Critical patent/DE2752469A1/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B1/00—Systems for signalling characterised solely by the form of transmission of the signal
    • G08B1/08—Systems for signalling characterised solely by the form of transmission of the signal using electric transmission ; transformation of alarm signals to electrical signals from a different medium, e.g. transmission of an electric alarm signal upon detection of an audible alarm signal
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

An alarm monitoring system includes a transmitter and a portable receiver with a built-in error signal detector. The alarm unit (1) consists of a transmitter that operates in conjunction with a periodic test signal that distinguishes between an alarm condition and any malfunction. Any correct alarm signal activates the portable unit. The portable receiver system (2) includes a fault input detector connected to an alarm display or sound unit.

Description

EIGENSICHERES, MOBILES ÜBERWACHUNGSSYSTEMINTRINSICALLY SAFE, MOBILE SURVEILLANCE SYSTEM

Verfahrungsweise Die Erfindung betrifft ein Überwachungssystem, das alle auslösenden Alarmgaben oder Beeinträchtigungen der Betriebssicherheit des Warngerätes am Überwachungsobjekt drahtlos auf einen Empfänger mittels Funktimpulsen überträgt.Procedure The invention relates to a monitoring system which all triggering alarms or impairments of the operational safety of the warning device transmits wirelessly to a receiver on the monitored object by means of radio pulses.

Die bisher üblichen Warngeräte/Alarmanlagen waren nicht eigensicher, das heißt, bei Störungen der Stromversorgung riurch Abklemmen, Funktionsunsicherheit (Erschöpfung), war eine Alarmmeldung nicht mehr möglich.The warning devices / alarm systems used up to now were not intrinsically safe, that is, in the event of disruptions in the power supply due to disconnection, functional uncertainty (Exhaustion), an alarm message was no longer possible.

Die erfinderische [euheit besteht daraus, daß vom alarmauslösenden Gerät mit integrierten Sender A drahtlos ein portables Empfangsgerät B mit periodischen Signalen angesteuert wird.The inventive novelty consists of the fact that the alarm-triggering Device with integrated transmitter A wirelessly a portable receiving device B with periodic Signals is controlled.

Das System ist dadurch gekennzeichnet, daß der Empfänger mit einem Fehlimpulsdedektor ausgerüstet ist und bei Ausbleiben der periodischen Signale alarmgebend funktioniert.The system is characterized in that the receiver with a Missing pulse detector is equipped and gives an alarm in the absence of periodic signals functions.

Das Ausbleiben der Sendesignale geschieht durch drei Arten: 1. Ansprechen des Alarmgerätes Al 2. Störung der objekteigenen Stromversorgung +Ubl f. Störung der Antennenabstrahlung Das System zeichnet sich durch absolute Betriebs -sicherheit aus; da sicher gestellt ist, daß das Gerät immer in den alarmgebenden Zustand fällt.The absence of transmission signals occurs in three ways: 1. Addressing of the alarm device Al 2. Fault in the property's own power supply + Ubl for fault the antenna radiation The system is characterized by absolute operational reliability the end; because it is ensured that the device always goes into the alarming state.

Claims (1)

EIGENSICHERES, MOBILES ÜBERWACHUNGSSYSTEM Patent - Anspruchs 1) Überwachunggsystem bestehend aus - Alarmgerät (Al) - integrierter Sender für drahtlose Übermittlung - Antenne - Empfangsgerät (B) Die arfindung ist dadurch gekennzeichnet, dal3 der Empfänger mit Hilfe eines Fehl -impulsdedektors nur bei Ausbleiben der periodisch empfangenen Funksignale Alarm gibt.INTRINSICALLY SAFE, MOBILE MONITORING SYSTEM Patent - Claim 1) Monitoring system consisting of - alarm device (Al) - integrated transmitter for wireless transmission - Antenna - Receiver (B) The invention is characterized by the fact that the Receiver with the help of a false pulse detector only if the periodically does not occur received radio signals gives an alarm.
DE19772752469 1977-11-24 1977-11-24 Intrinsically safe portable alarm - has portable receiver that interacts with alarm transmitter and includes test signal facility Pending DE2752469A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19772752469 DE2752469A1 (en) 1977-11-24 1977-11-24 Intrinsically safe portable alarm - has portable receiver that interacts with alarm transmitter and includes test signal facility

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772752469 DE2752469A1 (en) 1977-11-24 1977-11-24 Intrinsically safe portable alarm - has portable receiver that interacts with alarm transmitter and includes test signal facility

Publications (1)

Publication Number Publication Date
DE2752469A1 true DE2752469A1 (en) 1979-06-07

Family

ID=6024528

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19772752469 Pending DE2752469A1 (en) 1977-11-24 1977-11-24 Intrinsically safe portable alarm - has portable receiver that interacts with alarm transmitter and includes test signal facility

Country Status (1)

Country Link
DE (1) DE2752469A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0111632A1 (en) * 1982-11-23 1984-06-27 Flachglas Aktiengesellschaft Protection system for windows, doors or the like

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0111632A1 (en) * 1982-11-23 1984-06-27 Flachglas Aktiengesellschaft Protection system for windows, doors or the like

Similar Documents

Publication Publication Date Title
US6057759A (en) Marine personnel monitoring, overboard detection, alert and rescue system
US4331953A (en) Communication system for use in hazardous confined areas
US3914692A (en) Emergency communication system
US5386209A (en) Cluster alarm monitoring system
US4813025A (en) Safety alert and locating system
CA1207052A (en) Remote signalling apparatus
EP0077668B1 (en) A combined communication, security and alarm radio system
GB1514897A (en) Device for monitoring physical activity of persons
DE19639492A1 (en) Help call system, with self activation with occurrence of critical circumstances
JPH03500938A (en) personal alarm device
DE3278376D1 (en) A locality supervision system
DE2752469A1 (en) Intrinsically safe portable alarm - has portable receiver that interacts with alarm transmitter and includes test signal facility
GB1595788A (en) Warning systems
JPS581290A (en) Battery exhaustion alarm
DE2913266A1 (en) Radio linked security alarm system - has remote display which can be set by patrols and uses different local and remote frequencies
KR101393894B1 (en) Portable dead-man alarm system and method of vessel
JPS581289A (en) Detection and indication of battery voltage
US3810097A (en) Method and system for visually conveying alarm information
CN212047379U (en) Rail transit safety distance warning system
US4118694A (en) Base loop code transmitter
US4093920A (en) Delayed response transmitter indicator
JP3739171B2 (en) Wireless communication device
US5083109A (en) Rotating source verification device
JPH0135395B2 (en)
CN215526878U (en) Rifle signal linkage transmission device

Legal Events

Date Code Title Description
OHJ Non-payment of the annual fee