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DE9200827U1 - Active and passive emergency call system for endangered persons within work groups - Google Patents

Active and passive emergency call system for endangered persons within work groups

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Publication number
DE9200827U1
DE9200827U1 DE9200827U DE9200827U DE9200827U1 DE 9200827 U1 DE9200827 U1 DE 9200827U1 DE 9200827 U DE9200827 U DE 9200827U DE 9200827 U DE9200827 U DE 9200827U DE 9200827 U1 DE9200827 U1 DE 9200827U1
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Germany
Prior art keywords
emergency call
triggered
receiver
warning signal
transmitter
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Expired - Lifetime
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DE9200827U
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German (de)
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Priority to DE9200827U priority Critical patent/DE9200827U1/en
Publication of DE9200827U1 publication Critical patent/DE9200827U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • G08B21/04—Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons
    • G08B21/0407—Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons based on behaviour analysis
    • G08B21/043—Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons based on behaviour analysis detecting an emergency event, e.g. a fall
    • 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
    • G08B21/04—Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons
    • G08B21/0438—Sensor means for detecting
    • G08B21/0469—Presence detectors to detect unsafe condition, e.g. infrared sensor, microphone
    • 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
    • G08B21/04—Alarms for ensuring the safety of persons responsive to non-activity, e.g. of elderly persons
    • G08B21/0438—Sensor means for detecting
    • G08B21/0484—Arrangements monitoring consumption of a utility or use of an appliance which consumes a utility to detect unsafe condition, e.g. metering of water, gas or electricity, use of taps, toilet flush, gas stove or electric kettle
    • 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

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  • Business, Economics & Management (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Emergency Management (AREA)
  • General Health & Medical Sciences (AREA)
  • Gerontology & Geriatric Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Computer Security & Cryptography (AREA)
  • Psychiatry (AREA)
  • Psychology (AREA)
  • Social Psychology (AREA)
  • Mobile Radio Communication Systems (AREA)

Description

Beschreibung der Erfindung G 92 OO 827.5Description of the invention G 92 OO 827.5

Es handelt sich um ein aktives und passives Notrufsystem zum Einsatz in und bei Personengruppen, die als Einzelperson oder als Gruppe gefaehrliche Arbeiten auszufuehren haben.It is an active and passive emergency call system for use in and with groups of people who have to carry out dangerous work as individuals or as a group.

Ein typischer Einsatzort fuer ein solches Notrufsystem ist z.B. die Forst- und Landwirtschaft, die Bauwirtschaft etc.A typical application for such an emergency call system is, for example, forestry and agriculture, the construction industry, etc.

Das Notrufsystem dient dazu, im Falle einer Notsituation einer einzelnen oder mehreren Personen, die uebrigen Mitglieder dieser Gruppe sofort zu alarmieren um keinerlei Zeit fuer einzuleitende Hilfsmaßnahmen zu verlieren.The emergency call system is designed to immediately alert the other members of the group in the event of an emergency involving one or more people, so that no time is lost in initiating emergency measures.

Das System arbeitet als Funknotruf system, bei dem der Notruf im Bedarfsfall selbsttaetig durch eine Bewegungsueberwachung der entsprechenden Person, dies ist der passive Notruf oder manuell durch die entsprechende Person selbst ausgeloest werden kann, dies ist der aktive Notruf.The system works as a radio emergency call system, where the emergency call can be triggered automatically if necessary by monitoring the movement of the relevant person, this is the passive emergency call, or manually by the relevant person themselves, this is the active emergency call.

Das gesamte System besteht aus einer beliebigen Anzahl von Einzelgeraeten, die alle bau- und funktionsgleich sind, jedoch mit einer individuellen Kennung (Adresse) versehen sind.The entire system consists of any number of individual devices, all of which are identical in design and function, but are provided with an individual identifier (address).

Jede gefaehrdete Person innerhalb einer Arbeitsgruppe wird mit einem Geraet ausgeruestet.Each person at risk within a work group is provided with a device.

Der Wirkungsbereich, Reichweite des entsprechenden Funksignales, ist auf den Arbeitsbereich der Gruppe begrenzt und betraegt ca. je nach Einsatzort etwa 0,5 - 1 Km im Umkreis.The effective range of the corresponding radio signal is limited to the working area of the group and is approximately 0.5 - 1 km in radius, depending on the location.

G 92 OO 827.5G 92 OO 827.5

Innerhalb des Arbeitsbereiches kann im Bedarsfall ein ausgeloester Notruf durch ein Geraet mittels des vorhandenen Relaiskontaktes in ein oeffentliches Netz weitergeleitet werden. Nur ein tatsaechlich zum System gehoerender Notruf wird weitergeleitet. If necessary, an emergency call triggered by a device can be forwarded to a public network within the working area using the existing relay contact. Only an emergency call that actually belongs to the system will be forwarded.

Jedes Einzelgeraet dieses Notrufsystemes besitzt eine individuelle Adresse die es im Falle eines Notrufes mittels eines Funksignales abstrahlt und von den anderen Geraeten im Wirkungsbereich als ein akustisches oder anderes Signal, zur Alarmierung, wahrnehmbar gemacht wird.Each individual device in this emergency call system has an individual address which it transmits via a radio signal in the event of an emergency call and which is made perceptible by the other devices in the area as an acoustic or other signal to raise the alarm.

Anhand der Adresse, kenntlich gemacht durch den Alarmton, ist erkennbar wer den Notruf innerhalb der Gruppe ausgeloest hat.Based on the address, indicated by the alarm tone, it is possible to identify who triggered the emergency call within the group.

Bei Empfang eines Funksignales das nicht zum Notrufsystem gehoert, also als Stoersignal zu betrachten ist, erfolgt ebenfalls ein entsprechender Alarmton jedoch ohne eine spezifisch Kennung. An Hand des jeweils wahrnehmbar gemachten Alarmtones ist eindeutig erkennbar ob der Alarmton zu einem notrufausloesenden Geraet gehoert, einen empfangenen Notruf meldet oder eine Stoerung bedeutet.If a radio signal is received that does not belong to the emergency call system, and is therefore to be regarded as a disturbance signal, a corresponding alarm tone is also emitted, but without a specific identifier. Based on the alarm tone that is made perceptible in each case, it is clear whether the alarm tone belongs to a device that triggers an emergency call, reports a received emergency call or indicates a disturbance.

Beschreibung des einzelnen Geraetes G 92 OO 827.5Description of the individual device G 92 OO 827.5

Jedes einzelne Geraet dieses Notrufsystemes besteht aus 5 verschiedenen BaugruppenEach individual device in this emergency call system consists of 5 different modules

1. Einem Sender und Empfaenger die auf einer geeigneten Frequenz arbeiten und mittels der ueblichen Funkverfahren Nachrichten uebertragen.1. A transmitter and receiver that operate on a suitable frequency and transmit messages using the usual radio methods.

Im vorliegenden Fall wird der Frequenzbereich 433,05 bis 434,79 MHz, der sogenannte ISM-Bereich benutzt. Es besteht grundsaetzlich die Moeg1ichkeit, daß die DBP-Telekom andere Frequenzen fuer diese Anwendung zuweist.In this case, the frequency range 433.05 to 434.79 MHz, the so-called ISM range, is used. It is fundamentally possible that DBP-Telekom will allocate other frequencies for this application.

2. Einem Bewegungssensor der auf die normalen menschlichen Bewegungen anspricht und bei Bewegungen ein entsprechendes Signal erzeugt das von einer Auswerteelektronik erkannt wird und zum ruecksezten einer Zeit bis zum Ausloesen eines Notrufes verwandt wird.2. A motion sensor that responds to normal human movements and generates a corresponding signal when movements occur, which is recognized by an evaluation electronics and used to reset a time until an emergency call is triggered.

Im vorliegenden Fall ist dieser Bewegungssensor durch 6 Quecksilberschalter realisiert worden, andere Moeglichkeiten wie z.B. beschleunigungsabhaengige Systeme, o.ae. koennen ebenfalls verwandt werden.In the present case, this motion sensor is implemented using 6 mercury switches, but other options such as acceleration-dependent systems or similar can also be used.

3. Einer Auswerteelektronik die die entsprechenden Notsignale ausloest, direkt die Bewegungsueberwachung durchfuehrt, Warn- und Alarmsignale ausloest und den Betrieb des Sende- und Empfangsteiles steuert.3. An evaluation electronics that triggers the corresponding emergency signals, directly carries out the movement monitoring, triggers warning and alarm signals and controls the operation of the transmitting and receiving parts.

Im vorliegenden Fall besteht diese Auswerteelektronik ausIn this case, this evaluation electronics consists of

G 92 OO 827.5G 92 OO 827.5

einem Microcontroller einschließlich des entsprechenden Steuerprogrammes.a microcontroller including the corresponding control program.

4. Einer Akku-Ladeelektronik einschließlich Akkus, deren
Kapazitaet einen mindestens 10 stuendigen Dauerbetrieb jedes einzelnen Geraetes garantiert.4. Battery charging electronics including batteries whose
Capacity guarantees at least 10 hours of continuous operation of each individual device.

Die Akkuspannung wird von der Auswerteelektronik ueberwacht und bei unterschreiten eines bestimmten Wertes wird ein Warnton ausgeloest.The battery voltage is monitored by the evaluation electronics and if it falls below a certain value, a warning tone is triggered.

Das einzelne Sicherheitsgeraet besitzt keinen Ein/Ausschalter um versehtentliches oder vorsetz 1iches außer Betrieb setzenThe individual safety device does not have an on/off switch to prevent accidental or deliberate deactivation

zu verhindern.to prevent.

Das Geraet schaltet sich nur dann selbsttaetig aus wenn es an der Akku-Ladestation angeschlossen ist.The device only switches itself off when it is connected to the battery charging station.

5. Einem robusten Gehaeuse, versehen mit 2 Schaltern, einem zum Ausloesen eines Notrufes, einem anderen zum ruecksetzen des
Geraetes bei Empfang eines Signales.5. A robust housing, equipped with 2 switches, one to trigger an emergency call, another to reset the
device when receiving a signal.

Das Geraet ist vorgesehen um am Guertel oder in der Arbeitskleidung getragen zu werden.The device is designed to be worn on the belt or in work clothing.

Beschreibung der Warn- und Alarmsignale G 92 OO 827.5Description of warning and alarm signals G 92 OO 827.5

Warnsignale:Warning signals:

1. Ein Warnton zur Kenntlichmachung einer niedrigen Akkuspannung, dieser Ton erfolgt etwa alle 30 see fuer die Dauer von 1/4 see.1. A warning tone to indicate a low battery voltage, this tone occurs approximately every 30 seconds for a duration of 1/4 second.

2. Eine Warntonfolge vor Ausloesung des passiven Notrufes, der aktive Notruf kann sofort durch Tastendruck ausgeloest werden.2. A warning tone sequence before the passive emergency call is triggered; the active emergency call can be triggered immediately by pressing a button.

Diese Warntonfolge beginnt nach 20 see wenn der Bewegungssensor durch die normalen menschlichen Bewegungen nicht rueckgesetzt wurde und dauert etwa 20 Sekunden, beginnend mit einem kurzen Ton alle 2 Sekunden und einem Ton pro Sekunde in den letzten 10 Sekunden vor Ausloesung des Notrufes.This warning tone sequence begins after 20 seconds if the motion sensor has not been reset by normal human movements and lasts for about 20 seconds, starting with a short tone every 2 seconds and one tone per second in the last 10 seconds before the emergency call is triggered.

Erfolgt waehrend dieser Warntonfolge eine Bewegung die den Bewegungssensor ansprechen laeBt, so beginnt die Wartezeit erneut.If a movement occurs during this warning sequence that triggers the motion sensor, the waiting time begins again.

Der 2. Warnton hat Prioritaet gegenueber dem 1. Warnton. Alarmsignale:The 2nd warning tone has priority over the 1st warning tone. Alarm signals:

1. Bei Ausloesung des aktiven oder passiven Notrufes ertoent bei dem Notruf sendenden Geraet ein Alarmton von ca. 2 see Dauer und 3 see Pause, staendig wiederholend.1. When the active or passive emergency call is triggered, the device sending the emergency call will emit an alarm tone of approximately 2 seconds duration and 3 seconds pause, repeating continuously.

Waehrend der Tonpause sendet das Geraet fuer ca. 1 see, repetierend den Notruf aus.During the audio pause, the device sends out the emergency call repeatedly for approx. 1 second.

G 92 OO 827.5 2. Bei Empfang eines Funksignales durch den Empfaenger in jedem Geraet, wird durch die Auswerteelektronik ueberprueft ob dieses Funksignal ein gueltiger Notruf ist oder nicht. Ist das Funksignal ein gueltiger Notruf erfolgt die akustische Alarmtonausgabe, andernfalls wird lediglich ein Warnton ausgegeben.G 92 OO 827.5 2. When a radio signal is received by the receiver in each device, the evaluation electronics check whether this radio signal is a valid emergency call or not. If the radio signal is a valid emergency call, an acoustic alarm tone is emitted, otherwise only a warning tone is emitted.

Ist das Funksignal kein gueltiger Notruf, sondern ein beliebiges anderes Funksignal erfolgt ein Warnton, staendig repetierend, 5 Toene zu je 1/2 see, 3/4 see Pause, staendig wiederholend.If the radio signal is not a valid emergency call, but any other radio signal, a warning tone is emitted, constantly repeating, 5 tones of 1/2 sound, 3/4 sound pause, constantly repeating.

Alle Warn- oder Alarmtoene koennen durch druecken des Ruecksetzschalters aufgehoben werden wie auch jeder Notruf.All warning or alarm tones can be cancelled by pressing the reset switch, as can any emergency call.

Ein ausgeloester Notruf kann nur durch druecken der Ruecksetztaste an dem notrufausloesenden Geraet aufgehoben werden.An emergency call that has been triggered can only be canceled by pressing the reset button on the device that triggered the emergency call.

Nach loslassen das Ruecksetzschalters beginnt die normale Geraetefunktion erneut.After releasing the reset switch, the normal device function starts again.

Claims (3)

Schutzansprueche G 92 OO 827.5Protection claims G 92 OO 827.5 1. Aktives und passives Funknotruf system, dadurch g ekennzeichnet, dass Personen in Arbeitsgruppen mit einem tragbaren Sende- Empfaenger ausgeruestet werden, die alle untereinander sende- und empfangsbereit sind.1. Active and passive radio emergency call system, characterized in that people in work groups are equipped with a portable transceiver, all of whom are ready to send and receive among themselves. Jedes dieser Sende- und Empfangsgeraete ist mit einer eigenen Stromversorgung versehen und beinhaltet einen Coder und Decoder um Codesignale zu erzeugen und ueber den integrierten Sender zu uebertragen und Signale vom integrierten Empfaenger auszuwerten.Each of these transmitter and receiver devices is provided with its own power supply and contains a coder and decoder to generate code signals and transmit them via the integrated transmitter and evaluate signals from the integrated receiver. Jedes der Sende- und Empfangsgeraete beinhaltet einen akustischen oder optischen Alarmgeber und je eine Taste um an jedem einzelnen Sende- und Empfangsgeraet einen Notruf auszuloesen oder um das einzelne Sende- und Empfangsgeraet zurueckzusetzen.Each of the transmitters and receivers contains an acoustic or optical alarm device and a button to trigger an emergency call on each individual transmitter and receiver or to reset the individual transmitter and receiver. Jedes einzelne Sende- und Empfangsgeraet beinhaltet desweiteren einen Relaiskontakt um einen decodierten, empfangenen Notruf nach aussen weiterzuleiten.Each individual transmitter and receiver also contains a relay contact to forward a decoded, received emergency call to the outside. 2. System nach Anspruch 1, dadurch gekennzeic h net, dass in jedem einzelnen Sende- und Empfangsgeraet ein Bewegungssensor enthalten ist der auf die normalen Bewegungen des Menschen anspricht und in Folge dieser Bewegungen ein Signal liefert das von dem integrierten Coder- Decoder verwandt wird, eine Zeitperiode2. System according to claim 1, characterized in that each individual transmitting and receiving device contains a motion sensor which responds to the normal movements of the person and, as a result of these movements, delivers a signal which is used by the integrated coder-decoder, a time period G 92 OO 827.5
nochmals auf Anfang zu setzen.G 92 OO 827.5
to start again from the beginning. Nach Ablauf dieser Zeitperiode erfolgt ein akustisches oder optisches Warnsignal um den jeweiligen Traeger des Geraetes zu warnen, ein Lebenszeichen in der Form von sich zu geben, dass er entweder die Ruecksetztaste betaetigt oder durch entsprechende Bewegung den Bewegungsssensor ausloest. Erfolgt diese Ruecksetzung der Zeitperiode nicht, so loest das Geraet bei dem entsprechenden Traeger nach einer weiteren Zeitperiode einen Notruf aus.After this time period has elapsed, an acoustic or visual warning signal is emitted to warn the wearer of the device to give a sign of life by either pressing the reset button or by triggering the motion sensor with a corresponding movement. If the time period is not reset, the device will trigger an emergency call to the wearer after a further period of time. Dieser Notruf kann nur abgeschaltet werden durch ruecksetzen des notrufausloesenden Geraetes.This emergency call can only be deactivated by resetting the device that triggered the emergency call. Dieser Notruf wird bei dem notrufausloesenden Geraet durch ein besonderes Warnsignal, akustisch oder optisch, begleitetThis emergency call is accompanied by a special warning signal, acoustic or visual, on the device that triggered the emergency call 3. System nach Anspruch 1 und 2, dadurch gekennzeichnet, dass alle anderen Sende- und Empfangsgeraete im Wirkungsbereich des Systemes den unter 2 ausgeloesten Notruf empfangen und durch ein besonderes Warnsignal, akustisch oder optisch oder extern mittels des Relaiskontaktes unter 1 dieses Warnsignal kenntlich machen.
Dieses, durch den decodierten Notruf ausgeloeste Warnsignal kann nur durch ruecksetzen des jeweiligen Geraetes das den Notruf zur Anzeige bringt und durch das notrufausloesende Geraet unterbrochen werden.3. System according to claim 1 and 2, characterized in that all other transmitting and receiving devices in the area of operation of the system receive the emergency call triggered under 2 and indicate this warning signal by a special warning signal, acoustically or optically or externally by means of the relay contact under 1.
This warning signal, triggered by the decoded emergency call, can only be interrupted by resetting the device that displays the emergency call and by the device that triggered the emergency call.
DE9200827U 1992-01-24 1992-01-24 Active and passive emergency call system for endangered persons within work groups Expired - Lifetime DE9200827U1 (en)

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Application Number Priority Date Filing Date Title
DE9200827U DE9200827U1 (en) 1992-01-24 1992-01-24 Active and passive emergency call system for endangered persons within work groups

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19601196A1 (en) * 1996-01-15 1997-07-17 Pietzsch Ibp Gmbh Communication and monitoring system for ill, old or handicapped people
DE19625367A1 (en) * 1996-06-25 1998-01-02 Deutsche Telephonwerk Kabel Emergency call signalling method in trunked radio network
DE29718176U1 (en) * 1997-10-14 1998-01-08 Neumann, Hans, 69483 Wald-Michelbach Two-way personal emergency call system
DE19854047A1 (en) * 1998-11-24 2000-05-31 Peter Langbein Mobile monitoring of vehicle drivers involves emitting visual/acoustic signals in event of emergency, making automatic, repeated emergency calls to control center if not cancelled by driver
DE19941767A1 (en) * 1999-09-02 2001-05-03 Schoebel Industriereinigung Gm Device for monitoring people at work uses effective elements brought together into operating contact by a person being monitored and connected to an analyser performing a safety function upon failure of operating connections.
DE10004041A1 (en) * 2000-01-31 2001-09-06 Helicom Entwicklungsges Personal alarm system for forestry workers etc. uses mobile telephone as radio transmitter for alerting control centre
DE20103597U1 (en) * 2001-03-01 2002-07-11 Kluge Angela Device for making an emergency call
DE10261344B4 (en) * 2002-12-28 2009-02-26 Töteberg, Andreas Bidirectional system for call for help and distance determination
DE102013018053A1 (en) * 2013-11-28 2015-05-28 Dräger Safety AG & Co. KGaA Blower filter device, respiratory protection system, deployment infrastructure and procedures

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1281319B (en) * 1966-11-22 1968-10-24 Alfred Grotjahn Emergency caller trained as a small transmitter
DE2532504B2 (en) * 1975-07-21 1978-12-14 Compur-Electronic Gmbh, 8000 Muenchen Device for monitoring people who are left to their own devices when carrying out their work
DE2746283A1 (en) * 1977-10-14 1979-04-19 Dietrich Gottstein Distress call signalling system - with communication between mobile transceivers and central office and re-transmission of received calls
DE7710920U1 (en) * 1977-04-06 1979-10-31 Grotjahn, Alfred, 3167 Burgdorf EMERGENCY SIGNALS FOR SECURING PEOPLE
DE3047231A1 (en) * 1979-12-28 1981-09-10 Inpama Anstalt, 9490 Vaduz PORTABLE EMERGENCY TRANSMITTER AND IN PARTICULAR FOR THE SAME SUITABLE TILT SWITCH
DE2910016C2 (en) * 1978-03-15 1984-09-27 Electronique Marcel Dassault S.A., Paris Emergency call device
DE3004411C2 (en) * 1980-02-07 1986-06-12 Alfred 3167 Burgdorf Grotjahn Process and device for securing endangered persons
US4906972A (en) * 1987-04-29 1990-03-06 The Boeing Company Communication system for hazardous areas

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1281319B (en) * 1966-11-22 1968-10-24 Alfred Grotjahn Emergency caller trained as a small transmitter
DE2532504B2 (en) * 1975-07-21 1978-12-14 Compur-Electronic Gmbh, 8000 Muenchen Device for monitoring people who are left to their own devices when carrying out their work
DE7710920U1 (en) * 1977-04-06 1979-10-31 Grotjahn, Alfred, 3167 Burgdorf EMERGENCY SIGNALS FOR SECURING PEOPLE
DE2746283A1 (en) * 1977-10-14 1979-04-19 Dietrich Gottstein Distress call signalling system - with communication between mobile transceivers and central office and re-transmission of received calls
DE2910016C2 (en) * 1978-03-15 1984-09-27 Electronique Marcel Dassault S.A., Paris Emergency call device
DE3047231A1 (en) * 1979-12-28 1981-09-10 Inpama Anstalt, 9490 Vaduz PORTABLE EMERGENCY TRANSMITTER AND IN PARTICULAR FOR THE SAME SUITABLE TILT SWITCH
DE3004411C2 (en) * 1980-02-07 1986-06-12 Alfred 3167 Burgdorf Grotjahn Process and device for securing endangered persons
US4906972A (en) * 1987-04-29 1990-03-06 The Boeing Company Communication system for hazardous areas

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Firmenschrift: Grotjahn Alarmsystem TL 700 Funk- Personen-Sicherungsanlage, 1972, S.1-4 *

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19601196C2 (en) * 1996-01-15 2001-09-20 Knud Overlach Communication and monitoring system and method for monitoring a selected group of people
DE19601196A1 (en) * 1996-01-15 1997-07-17 Pietzsch Ibp Gmbh Communication and monitoring system for ill, old or handicapped people
DE19625367A1 (en) * 1996-06-25 1998-01-02 Deutsche Telephonwerk Kabel Emergency call signalling method in trunked radio network
DE19625367B4 (en) * 1996-06-25 2005-03-17 Detewe Deutsche Telephonwerke Aktiengesellschaft & Co. Kg Emergency call signaling in trunked radio networks
DE29718176U1 (en) * 1997-10-14 1998-01-08 Neumann, Hans, 69483 Wald-Michelbach Two-way personal emergency call system
DE19854047A1 (en) * 1998-11-24 2000-05-31 Peter Langbein Mobile monitoring of vehicle drivers involves emitting visual/acoustic signals in event of emergency, making automatic, repeated emergency calls to control center if not cancelled by driver
DE19854047C2 (en) * 1998-11-24 2001-10-04 Peter Langbein Mobile monitoring device for vehicle drivers
DE19941767A1 (en) * 1999-09-02 2001-05-03 Schoebel Industriereinigung Gm Device for monitoring people at work uses effective elements brought together into operating contact by a person being monitored and connected to an analyser performing a safety function upon failure of operating connections.
DE10004041A1 (en) * 2000-01-31 2001-09-06 Helicom Entwicklungsges Personal alarm system for forestry workers etc. uses mobile telephone as radio transmitter for alerting control centre
DE10004041B4 (en) * 2000-01-31 2004-02-26 HELICOM Entwicklungsgesellschaft für Telekommunikation und Medientechnik mbH Personal emergency call system
DE20103597U1 (en) * 2001-03-01 2002-07-11 Kluge Angela Device for making an emergency call
DE10261344B4 (en) * 2002-12-28 2009-02-26 Töteberg, Andreas Bidirectional system for call for help and distance determination
DE102013018053A1 (en) * 2013-11-28 2015-05-28 Dräger Safety AG & Co. KGaA Blower filter device, respiratory protection system, deployment infrastructure and procedures
DE102013018053B4 (en) * 2013-11-28 2016-04-21 Dräger Safety AG & Co. KGaA Blower filter device, respiratory protection system, deployment infrastructure and procedures

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