+

WO1994028525A1 - Procede de signalisation de corps etrangers et appareil prevu a cet effet - Google Patents

Procede de signalisation de corps etrangers et appareil prevu a cet effet Download PDF

Info

Publication number
WO1994028525A1
WO1994028525A1 PCT/FI1994/000214 FI9400214W WO9428525A1 WO 1994028525 A1 WO1994028525 A1 WO 1994028525A1 FI 9400214 W FI9400214 W FI 9400214W WO 9428525 A1 WO9428525 A1 WO 9428525A1
Authority
WO
WIPO (PCT)
Prior art keywords
foreign matter
signal
detector
radio transmitter
gas
Prior art date
Application number
PCT/FI1994/000214
Other languages
English (en)
Inventor
Tarmo KARHAPÄÄ
Ilkka Sintonen
Original Assignee
Environics Oy
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 Environics Oy filed Critical Environics Oy
Publication of WO1994028525A1 publication Critical patent/WO1994028525A1/fr

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B27/00—Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations
    • G08B27/001—Signalling to an emergency team, e.g. firemen
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B27/00—Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations
    • G08B27/008—Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations with transmission via TV or radio broadcast

Definitions

  • the objective of the invention is a method for reporting 5 foreign matter content in gas and an equipment therefor.
  • the US-patents 4119950 and 4668940 present conventional gas- warning devices for the transmissions of measuring data or alarm signals between two spots on building sites, oil rigs, etc.
  • the objective of the US-patent 4119950 is monitoring the gas content.
  • the apparatus according to the references, 5 comprises means for generating an audio-frequency electric signal.
  • the transducers 2 and 4 operate as the transmitters and receivers of the ultrasonic waves.
  • the transmitters are located to let the ultrasonic waves pass through the area in which the gas content is to be monitored.
  • the processor 34 can produce a corresponding radio-frequency output, which is fed to the transmitting aerial 38 for reception at a remote receiving station comprising an aerial 40, a receiver 42 and a display unit 44.
  • a remote receiving station comprising an aerial 40, a receiver 42 and a display unit 44.
  • the US-patent 4668940 relates to a portable electrically operable apparatus for monitoring and for giving warning of the presence of a predetermined environmental hazard.
  • a radio transmit ⁇ ter in special cases in the equipment.
  • An uniquely coded signal can be sent to the central point when the alarm has been activated, thus alerting the Safety and Rescue Teams immediately. Signals indicating safe conditions could also be sent, if required.
  • Two-way radio transmissions could be used to allow interrogation of the hazard monitoring and warning.
  • the patent mentions the use of a radio transmitter for giving warning to the central point of the presence of a hazardous substance, detected by the monitoring device, to alert the rescue team. According to this the information about the detection is sent to one spot, and not separately to each member of the rescue team.
  • the problem with the invention is supplying the information to all members of the team.
  • the method and equipment according to the invention provide a decisive improvement of the above mentioned disadvantages and problems.
  • the embodiment of the method and equipment according to the invention is characterized in what is disclosed in Claims 1 and 5.
  • One of the most important advantages of the invention is that it provides a warning about the foreign matter content to a large group, e.g. a detachment, with only one detector for the foreign matter content.
  • the warning is rendered immediately to everyone when the detector has reacted to the foreign matter or to its content.
  • the warning can also be received when on the move.
  • the warning detector is s all- sized.
  • Fig. 1 presents a schematic illustration of the measuring equipment with a radio transmitter connected thereto.
  • Fig. 2 presents a schematic illustration of the arrange ⁇ ment according to the invention.
  • Fig. 1 presents a schematic illustration of an alternative detecting equipment of the foreign matter content, using e.g. the method presented in the Fl-patent 75055 for detect ⁇ ing e.g. combat gases.
  • the gas and its components are ionized in the ionization zone. They are led into a narrow analyzer channel, in which they due to the capillary effect have to pass in the middle of the channel. From there they are further deflected by electric fields causing unequal voltages to the electrode in the channel border, producing there the ion current.
  • the different agents are identified and the ion contents in the gas is defined by comparing them to corre ⁇ sponding spectra obtained from standard samples of the different agents.
  • a solution has also been disclosed, in which the ions contained in the gas are, before measuring, separated in a separator into positive and negative ions, of which ions of different brand are analyzed.
  • Corresponding methods are presented in e.g. the DE-publication 202885, the EP-application publication 21 518 and the CH-publication 550 399.
  • the Fl-patent application 930122 is arranged in parallel or in sequence at least one ionization and at least one semiconductor cell simultaneously.
  • the M90 detector of chemical substance developed by the applicant or further developed versions of the same can be used to indicate the foreign matter content.
  • the signal can be transferred even long ranges, according to the effects of the equipment, but e.g. 3-5 km is sufficient in army conditions and quite common depending on the form of terrain.
  • the message can be sent as a coded alarm signal.
  • Both the transmitter and the receiver can be coded by an automatic code accumulator as often as possible.
  • the user can choose the transfer protocol and the frequency.
  • the alarm system can naturally be con- nected to the user's own wireless data transmission system.
  • a conjunction is connected to the foreign matter detector 1, e.g. a radio transmitter 2 along a conventional data transmission cable 3, which radio transmitter is activated when the detector gives an impulse of detecting a foreign matter or a certain exceeding content.
  • the carrier wave modulated in the radio transmitter is amplified and led to the transmission aerial 5, through which the data is transmitted as radio waves to the alarm units 4.
  • the alarm unit 4 is a special radio receiver, which renders selectively an audible or visual alarm, or both.
  • the alarm unit 4 is attached to the user's belt, or corresponding.
  • the power sources are e.g. lithium batteries or accumulators.
  • the alarm unit contains a device indicating low charging of the batteries or the accumulator.
  • the signal indicating detection of a foreign matter content by the analysis device is sent to several portable receivers 4 simultaneously to alert all possessors of the receiver 5.
  • Fig. 2 presents how the people within the overlap of the radio transmitter can be alerted from one detector.
  • the alarm devices of these people can be conventional remote pagers used in the radio telephone traffic, able to at least receive the signals of the detector's radio transmitter and render an alarm signal to its user.
  • the device can also be developed so that a certain gas or content gives a different message to its user to make him react correctly.
  • the user's paging device is adapted to identify only the signal re ⁇ ceived from the detecting device.

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Emergency Alarm Devices (AREA)

Abstract

L'invention concerne un procédé de la détection de corps étrangers dans du gaz. Dans le procédé selon l'invention, l'émetteur radio (2) relié au détecteur (1) qui l'active envoie un signal à des personnes se trouvant dans la zone de recouvrement du signal pour signaler la détection de corps étrangers. L'appareil prévu à cet effet est doté de dispositifs d'émission et de réception (2, 4) du signal.
PCT/FI1994/000214 1993-05-27 1994-05-27 Procede de signalisation de corps etrangers et appareil prevu a cet effet WO1994028525A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI932431A FI932431L (fi) 1993-05-27 1993-05-27 Menetelmä vierasainepitoisuudesta ilmoittamiseksi ja laitteisto sitä varten
FI932431 1993-05-27

Publications (1)

Publication Number Publication Date
WO1994028525A1 true WO1994028525A1 (fr) 1994-12-08

Family

ID=8538019

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1994/000214 WO1994028525A1 (fr) 1993-05-27 1994-05-27 Procede de signalisation de corps etrangers et appareil prevu a cet effet

Country Status (2)

Country Link
FI (1) FI932431L (fr)
WO (1) WO1994028525A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5610589A (en) * 1995-02-09 1997-03-11 Bennie R. Evans Method and apparatus for enforcing hygiene
US5952924A (en) * 1997-12-04 1999-09-14 Bennie R. Evans Method and apparatus for enforcing hygiene
WO2002007014A1 (fr) * 2000-07-18 2002-01-24 Telefonaktiebolaget L M Ericsson Enregistreur de donnees servant a controler une expedition de marchandises

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4119950A (en) * 1976-04-07 1978-10-10 Redding Robert J Gas detection
US4665385A (en) * 1985-02-05 1987-05-12 Henderson Claude L Hazardous condition monitoring system
US5166664A (en) * 1989-08-15 1992-11-24 David Fish Warning method and apparatus and parallel correlator particularly useful therein

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4119950A (en) * 1976-04-07 1978-10-10 Redding Robert J Gas detection
US4665385A (en) * 1985-02-05 1987-05-12 Henderson Claude L Hazardous condition monitoring system
US5166664A (en) * 1989-08-15 1992-11-24 David Fish Warning method and apparatus and parallel correlator particularly useful therein

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5610589A (en) * 1995-02-09 1997-03-11 Bennie R. Evans Method and apparatus for enforcing hygiene
US5952924A (en) * 1997-12-04 1999-09-14 Bennie R. Evans Method and apparatus for enforcing hygiene
WO2002007014A1 (fr) * 2000-07-18 2002-01-24 Telefonaktiebolaget L M Ericsson Enregistreur de donnees servant a controler une expedition de marchandises

Also Published As

Publication number Publication date
FI932431A0 (fi) 1993-05-27
FI932431L (fi) 1994-11-28

Similar Documents

Publication Publication Date Title
US5159315A (en) Communication system with environmental condition detection capability
EP0133378B1 (fr) Méthode et système de radiolocalisation de cas de détresse
US4998095A (en) Emergency transmitter system
CA2110353C (fr) Systeme sans fil de telesaisie de donnees et de transmission de ces donnees a un centre de controle
US4630035A (en) Alarm system having alarm transmitter indentification codes and acoustic ranging
US6633240B1 (en) Emergency warning system
US7991380B2 (en) Global bidirectional locator beacon and emergency communications system
MY111564A (en) Apparatus for identifying a transmitter in a radio communication system.
CA2568033A1 (fr) Moniteur d'exposition a un affichage universel faisant appel a un service de localisation personnel
WO2007070149B1 (fr) Système d’alerte de gaz avec indicateur de sens du vent
US8138911B2 (en) Personal locator beacon
CA2303074A1 (fr) Procede et appareil de surveillance
US20020155622A1 (en) Toxic gas monitoring system
EP0306577B1 (fr) Système et procédé de détermination de la position d'une personne ou d'un autre corps
US7948401B2 (en) Emergency transmission monitoring and reporting
JPH05188128A (ja) 非常信号の発信及び受信を通じて行う警備方法
WO1994028525A1 (fr) Procede de signalisation de corps etrangers et appareil prevu a cet effet
EP0229198A1 (fr) Alarme pour le voisinage
RU2240938C1 (ru) Радиоканальная система мониторинга и сопровождения транспортных средств
GB2254756A (en) Personnel location monitoring system
JP2001034874A (ja) 災害検知センサ伝送装置
US20080248777A1 (en) Apparatus and method for communicating in a high noise, multiple-recipient environment
KR100269368B1 (ko) 무선신호를이용한긴급신호시스템
WO2000019236A1 (fr) Appareil d'identification d'objet
JPS61277234A (ja) 位置検出方法

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): CA JP US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: CA

点击 这是indexloc提供的php浏览器服务，不要输入任何密码和下载