WO1987006748A1 - Systeme de controle et d'alarme a distance - Google Patents

Systeme de controle et d'alarme a distance Download PDF

Info

Publication number
WO1987006748A1
WO1987006748A1 PCT/US1987/000996 US8700996W WO8706748A1 WO 1987006748 A1 WO1987006748 A1 WO 1987006748A1 US 8700996 W US8700996 W US 8700996W WO 8706748 A1 WO8706748 A1 WO 8706748A1
Authority
WO
WIPO (PCT)
Prior art keywords
receiver
transmitter
signal
alarm
digitally
Prior art date
Application number
PCT/US1987/000996
Other languages
English (en)
Inventor
Edward Corwin
Dennis L. Vories
Original Assignee
F.B. NUTTER ENTERPRISES, INC. d/b/a CORTREX ELECTR
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 F.B. NUTTER ENTERPRISES, INC. d/b/a CORTREX ELECTR filed Critical F.B. NUTTER ENTERPRISES, INC. d/b/a CORTREX ELECTR
Publication of WO1987006748A1 publication Critical patent/WO1987006748A1/fr

Links

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
    • G08B21/0202—Child monitoring systems using a transmitter-receiver system carried by the parent and the child
    • G08B21/0205—Specific application combined with child monitoring using a transmitter-receiver system
    • G08B21/0211—Combination with medical sensor, e.g. for measuring heart rate, temperature
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G08B13/14—Mechanical actuation by lifting or attempted removal of hand-portable articles
    • G08B13/1427—Mechanical actuation by lifting or attempted removal of hand-portable articles with transmitter-receiver for distance detection
    • 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
    • G08B21/0202—Child monitoring systems using a transmitter-receiver system carried by the parent and the child
    • G08B21/0222—Message structure or message content, e.g. message protocol
    • 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
    • G08B21/0202—Child monitoring systems using a transmitter-receiver system carried by the parent and the child
    • G08B21/0227—System arrangements with a plurality of child units
    • 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
    • G08B21/0202—Child monitoring systems using a transmitter-receiver system carried by the parent and the child
    • G08B21/023—Power management, e.g. system sleep and wake up provisions
    • 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
    • G08B21/0202—Child monitoring systems using a transmitter-receiver system carried by the parent and the child
    • G08B21/0241—Data exchange details, e.g. data protocol
    • G08B21/0247—System arrangements wherein the alarm criteria uses signal strength
    • 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
    • G08B21/0202—Child monitoring systems using a transmitter-receiver system carried by the parent and the child
    • G08B21/0286—Tampering or removal detection of the child unit from child or article

Definitions

  • emergencies monitored can be out-of-range, immersion, tampering with the transmitter, breathing rate, as examples. Call signaling can be provided. although this may not be considered to have the same priority as other emergencies.
  • the invention provides a monitoring and alarm system with a radio frequency link between a receiver and a remote transmitter carried by a person or object being monitored.
  • One embodiment of the invention includes an FM transmitter that produces a transmitted signal at an FM carrier frequency.
  • the FM signal greatly reduces interference from AM sources or electrical noise.
  • the transmitted signal is a digitally-coded signal produced at pre-set transmission intervals in the form of multiple digitally coded words detected by the receiver.
  • the receiver is a constant listening device which produces an alarm immediately if none of the coded words is received during any transmission interval.
  • the multiple-coded words sent during each transmission interval minimize false alarms at the receiver due to interference, since the receiver needs to validly receive only one of the multiple- coded words during a given transmission interval in order to not produce an alarm.
  • the present invention is described with reference to a remote child monitoring and alarm system.
  • a radio frequency transmitter worn by the child sends digitally-coded signals to a portable receiver carried by a guardian.
  • the radio frequency signal activates an alarm at the receiver.
  • the invention is not intended to be limitedto suchchildmonitoringand alarmsystems, however, because the invention is useful for a variety of other remote monitoring applications.
  • the bottom face of the transmitter housing can include a pair of phone jacks 38 electrically connected to circuitry within the transmitter housing for producing signals sent to the receiver to monitor various conditions such as immersion and wetness, and breathing. If the transmitter senses wetness, or is immersed in water, if the subject stops breathing, or if any of the external sensors or probes is unplugged during use, an alarm sounds at the receiver.
  • the plunger 37 can slide into a passage in the transmitter housing for contact with a switch that closes when the clip is in place.
  • the plunger also can be seated in a recess in the clip.
  • the clip 36 is used to clip the transmitter onto the clothing of the person wearing the transmitter, the clothes create an interference which prevents the plunger from entering fully into the recess in the clip. This forces the plunger into the transmitter housing where it closes the switch to indicate that the transmitter has been properly clipped onto the clothing of the person wearing it.
  • the safety clip switch powers all analog loads, activates the digital I.C. via a power-down section 54, and functions as the anti-tamper sensor.
  • the transmitter generates both emergency alarms and status information. All emergency alarms (except out-of-range) immediately trigger the burst timer 74 out of sequence to send a coded burst to the transmitter circuitry, followed by no bursts for 22.5 seconds, or until the alarm condition is corrected.
  • a 22.5 second delay timer 84 controls the time delay following a triggered emergency alarm.
  • the burst timer normally sends its timing pulses to the Manchester encoder each 10.7 seconds, but when the burst timer is triggered by an alarm signal, it immediately sends a timing pulse to the Manchester encoder to send the emergency alarm to the receiver.
  • an LED 86 flashes at a 4 hz rate controlled by a 4 hz oscillator 88 coupled to the LED display through an OR gate 90 and buffer switch 92.
  • the burst timer is disabled at the OR gate 97 to prevent any other coded signals from being sent out once an emergency alarm has been triggered.
  • the purpose is to prevent sending other digitally ceded bursts which could be interfered with externally and which might erroneously inform the receiver that the emergency was later corrected and that the transmitted alarm signal had simply been a false alarm. That is, by stopping transmission of these further signals, interference from such signals is prevented, where such signals possibly could reset the alarm and make the alarm cease, while making the user think that the alarm that sounded was a false alarm, when it was not.
  • the delay timer output also is connected to the OR gate 96 that triggers an input to the burst timer and to the disable input of the burst timer through the OR gate 97.
  • the safety switch clip can be clipped and undipped at will for the first 8 seconds v/ithout activating the 22.5 second anti-tamper alarm.
  • the 4 second time delay output from the delay timer 100 is coupled to an input of the OR gate 90 and then to the LED display 86. During the first 4 seconds of the 8 second period after the safety chip is closed, theLED 86 stays onto indicatereclipping is still permissible without activating the 22.5 second anti-tamper alarm.
  • a second 10.7 mhz, 400 khz band width ceramic filter 162 is coupled between the 40 dB amplifier 160 and a 50 d3 limiter amplifier 164 for further improving the signal-to-noise ratio.
  • the 50 dB limiter amplifier further boosts signal
  • a high-impedance, current-to-voltage converter 174 changes the relative signal strength current of the I.F.
  • the digital I.C. performs all timing, logic, alarm generation, and signal decoding for the receiver. It uses a 32.768 khz watch crystal 184 as its time base.
  • the output signal from the intermediate frequency I.C. i.e. from the amplifier 168) provides the input signal 186 to the digital I.C. 128.
  • This input signal is processed by a Manchester decoder 188 by comparing a 10-bit, factory set address code 190 with the incoming 11-bit address code. If the first ten bits of the address code correlate v/ith the receiver code, a valid output signal 189 is generated by the Manchester decoder. Valid output signals mean that coded information in the decoder matches coded information sent from the transmitter.
  • a valid output is generated.
  • the eleventh bit determines whether the valid signal is from the standard transmitter or a secondary transmitter.
  • the remainder of the signal includes alarm fault data, which is latched into a data register 192 for the standard transmitter or an optional data register 194 for the optional or secondary transmitter.
  • the valid output signal from the Manchester decoder is coupled to a first AND gate 196 corresponding to the standard transmitter and to a second AND gate 198 corresponding to the optional transmitter.
  • the standard output signal from the Manchester decoder is sent to an 8 second timer 200 and to a standard transmitter ENABLE latch 202, the output of which is applied to an 11.1 second standard transmitter timer 204.
  • a transmitter When a transmitter is first activated, it immediately sends a burst. If the burst is from the standard transmitter, it starts the 8 second timer and causes the red LED 132 to glow during the 8 second period to indicate that the transmitter clip may still be repositioned v/ithout activating the anti-tamper alarm.
  • the 8-second timer is connected to the LED 132 through an OR gate 211.
  • the standard transmitter ENABLE latch is triggered, which causes the standard transmitter timer to start. If no valid signal is received before 11.1 seconds elapses (e.g., the transmitter moves beyond the preset range) , a warble oscillator 212 begins and continues until a valid reset signal is received.
  • the output of the oscillator passes through an OR gate 242 and is passed through either or both_of the AND gates 244 and 246, depending upon which of the standard and/or optional transmitters is at fault as sensed at the OR gates 248 and 250, respectively. If, for example, the standard transmitter is in fault, either (SA) at the output of the OR gate 252 or (SA') at the output of the standard transmitter timer 204" is high. This causes only the red LED 132 to flash at the 4 hz rate. The green LED 134 is activated in a similar manner to produce an emergency alarm for an optional transmitter.
  • the 10 dB gain RF amplifier consumes less than one milliamp of current and has a 4 dB noise level, v/ith the following selected transistor device electrical character ⁇ istics: collector-emitter breakdown voltage 5 volts DC (Min.) collector-base breakdown voltage 10 volts DC (Min.) emitter-base breakdown voltage 2 volts DC (Min.) collector cutoff current (Max.) 50 nanoamps DC current gain-bandwidth product 3 GHZ typical collector-base capacitance (Max.) 0.5 picofarads noise figure 4 dB typical
  • the I.F. preamplifier consumes less than one milliamp of current and has a 22 dB gain, with the following selected transistor device characteristics: collector-emitter breakdown voltage 5 volts DC (Min.) collector-base breakdown voltage 10 volts DC (Min.) emitter-base breakdown voltage 2 volts DC (Min.) collector cutoff current (Max.) 50 nar.oar.ps DC current gain-bandwidth product 3 Gr.Z typical collector-base capacitance (Max.) 0.5 picofarads noise figure 4 d3 *' typical
  • the intermediate frequency I.C. consumes less than

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Child & Adolescent Psychology (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Cardiology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Alarm Systems (AREA)

Abstract

Un système de contrôle et d'alarme à distance comprend une liaison radio FM entre un émetteur (30) porté par la personne ou l'objet contrôlé et un récepteur (10) qui reçoit des signaux d'alarme émis par le télé-émetteur. Des signaux FM numériquement codés sont produits au niveau de l'émetteur (30) à des intervalles pré-réglés de transmission sous la forme de mots numériques multiples détectés par le récepteur (10). Le récepteur (10) est un dispositif d'écoute constante qui donne l'alarme immédiatement si au moins un des mots codés n'est par reçu pendant un intervalle de transmission quelconque. Les mots multiples jouent un rôle redondant pendant chaque intervalle de transmission afin de réduire au maximum de fausses alarmes au niveau du récepteur (10) dues à des interférences. Les mots codés multiples sont transmis à des intervalles de temps minimaux pré-réglés afin de maximiser le nombre d'impulsions codées pendant chaque intervalle de transmission tout en espaçant les mots codés afin d'obtenir la puissance maximale admise de transmission. Le récepteur (10) peut contrôler deux émetteurs opérant simultanément à la même fréquence porteuse en ajustant les mots de code pour qu'ils surviennent à des périodes différentes pendant le même intervalle de transmission afin d'éviter la possibilité d'une coïncidence totale. Parmi les conditions d'urgence ainsi contrôlées, on peut avoir des signaux hors-de-portée, anti-effraction, d'alarme, de vitesse d'immersion et de respiration, parmi d'autres conditions ou états d'urgence sélectionnés.
PCT/US1987/000996 1986-04-23 1987-04-23 Systeme de controle et d'alarme a distance WO1987006748A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US85512286A 1986-04-23 1986-04-23
US855,122 1986-04-23

Publications (1)

Publication Number Publication Date
WO1987006748A1 true WO1987006748A1 (fr) 1987-11-05

Family

ID=25320409

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1987/000996 WO1987006748A1 (fr) 1986-04-23 1987-04-23 Systeme de controle et d'alarme a distance

Country Status (3)

Country Link
AU (1) AU7396587A (fr)
CA (1) CA1287114C (fr)
WO (1) WO1987006748A1 (fr)

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0323041A2 (fr) * 1987-12-07 1989-07-05 Barry M. Wolk Système de sécurité pour enfants
EP0341906A2 (fr) * 1988-05-07 1989-11-15 Transaqua Technology Limited Système de sécurité
FR2676135A3 (en) * 1991-02-20 1992-11-06 Beaba Device for signalling the exceeding by an individual, and especially by an infant, of a predetermined separation
BE1004724A3 (fr) * 1991-04-16 1993-01-19 Garot Jospeh Dispositif de surveillance de la proximite d'un objet portatif.
US5239684A (en) * 1989-07-18 1993-08-24 Kabushiki Kaisha Toshiba Radio communication apparatus having a function for displaying reception field strength and method of controlling the apparatus
WO1995002874A1 (fr) * 1993-07-15 1995-01-26 Girolamo Buonavoglia Dispositif electronique assurant une communication permanente ou discontinue entre des personnes et des objets
WO1995023394A1 (fr) * 1994-02-23 1995-08-31 Monaad Corporation Pty. Limited Systeme d'acces de securite
FR2725819A1 (fr) * 1994-07-19 1996-04-19 Patrick Andre Henri Chevalier Installation pour la protection de personnes exposees aux risques de chute dans de l'eau ou d'eloignement
ES2085829A2 (es) * 1994-02-17 1996-06-01 Hervas Jose Luna Perfeccionamientos en la construccion de aparatos de alarma.
US5630210A (en) * 1992-04-24 1997-05-13 Motorola, Inc. Method and apparatus for determining signal transmission quality levels of a transmitted signal
US5640146A (en) * 1995-02-24 1997-06-17 Ntp Incorporated Radio tracking system and method of operation thereof
WO1997022200A1 (fr) * 1995-12-14 1997-06-19 Telia Ab Dispositif pour systeme d'alarme
US5650769A (en) * 1995-02-24 1997-07-22 Ntp, Incorporated Radio receiver for use in a radio tracking system and a method of operation thereof
EP0840265A1 (fr) * 1996-11-04 1998-05-06 E Lead Electronic Co., Ltd. Système d'alarme pour détecter l'éloignement entre plusieurs transmetteurs synchrones et un récepteur
EP0850467A2 (fr) * 1994-10-27 1998-07-01 Dan Schlager Systemes de surveillance a distance autopositionnants
BE1010749A3 (nl) * 1996-11-14 1999-01-05 Albrechts Roland Kombinatie van een radio-ontvanger en een door radiogolven gestuurd oppas of bewakingssysteem voor dierbaren en bewegende dierbaarheden.
EP0915442A1 (fr) * 1997-11-06 1999-05-12 Claudio Balzamo Système de sauvegarde personnel
WO1999064275A1 (fr) * 1998-06-08 1999-12-16 Peter Schepers Systeme de communication et dispositif d'alarme
WO2000025286A1 (fr) * 1998-10-23 2000-05-04 Braz Conceicao Aparecida Dispositif de detection pour personnes et pour animaux
EP1172778A2 (fr) * 2000-07-15 2002-01-16 Belk, Jonathan Simon Appareil d'alerte de sécurité
GB2368704A (en) * 2000-08-24 2002-05-08 Robert Thomas Kingsbury Wireless child distance monitoring alarm system with anti-tamper features
US6512457B2 (en) 1999-11-15 2003-01-28 Hector Irizarry Monitoring device adapted for use with an electronic article surveillance system
WO2003015045A1 (fr) * 2001-08-10 2003-02-20 Robert Lucas Appareil de surveillance d'un baigneur
WO2004072922A1 (fr) * 2003-02-13 2004-08-26 Safemind Ab Alarme pour bebe
GB2399440A (en) * 2003-03-10 2004-09-15 Paul Sleeman Proximity alarm
DE102009014641A1 (de) * 2009-03-24 2010-10-07 Töteberg, Andreas System zur Verlustüberwachung und Positionsbestimmung
CN102324167A (zh) * 2011-05-31 2012-01-18 Tcl集团股份有限公司 一种防溺水报警方法及装置
US8149112B2 (en) 1994-10-27 2012-04-03 Mosaid Technologies Incorporated Multi-hazard alarm system using selectable power-level transmission and localization

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4101872A (en) * 1974-06-18 1978-07-18 Aboyne Pty. Limited Fire detection system
US4260982A (en) * 1979-10-25 1981-04-07 Debenedictis Angelo P Pulse code modulation responsive alarm system
US4442426A (en) * 1978-01-18 1984-04-10 Compur-Electronic Gmbh Signal transmission
US4476469A (en) * 1980-11-14 1984-10-09 Lander David R Means for assisting in locating an object
US4523184A (en) * 1982-09-30 1985-06-11 Sentrol, Inc. Supervised wireless security system
US4593273A (en) * 1984-03-16 1986-06-03 Narcisse Bernadine O Out-of-range personnel monitor and alarm
US4598272A (en) * 1984-08-06 1986-07-01 Cox Randall P Electronic monitoring apparatus

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4101872A (en) * 1974-06-18 1978-07-18 Aboyne Pty. Limited Fire detection system
US4442426A (en) * 1978-01-18 1984-04-10 Compur-Electronic Gmbh Signal transmission
US4260982A (en) * 1979-10-25 1981-04-07 Debenedictis Angelo P Pulse code modulation responsive alarm system
US4476469A (en) * 1980-11-14 1984-10-09 Lander David R Means for assisting in locating an object
US4523184A (en) * 1982-09-30 1985-06-11 Sentrol, Inc. Supervised wireless security system
US4593273A (en) * 1984-03-16 1986-06-03 Narcisse Bernadine O Out-of-range personnel monitor and alarm
US4598272A (en) * 1984-08-06 1986-07-01 Cox Randall P Electronic monitoring apparatus

Cited By (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0323041A2 (fr) * 1987-12-07 1989-07-05 Barry M. Wolk Système de sécurité pour enfants
EP0323041A3 (fr) * 1987-12-07 1989-10-18 Barry M. Wolk Système de sécurité pour enfants
EP0341906A2 (fr) * 1988-05-07 1989-11-15 Transaqua Technology Limited Système de sécurité
EP0341906A3 (fr) * 1988-05-07 1990-10-17 Transaqua Technology Limited Système de sécurité
US5239684A (en) * 1989-07-18 1993-08-24 Kabushiki Kaisha Toshiba Radio communication apparatus having a function for displaying reception field strength and method of controlling the apparatus
FR2676135A3 (en) * 1991-02-20 1992-11-06 Beaba Device for signalling the exceeding by an individual, and especially by an infant, of a predetermined separation
BE1004724A3 (fr) * 1991-04-16 1993-01-19 Garot Jospeh Dispositif de surveillance de la proximite d'un objet portatif.
US5630210A (en) * 1992-04-24 1997-05-13 Motorola, Inc. Method and apparatus for determining signal transmission quality levels of a transmitted signal
WO1995002874A1 (fr) * 1993-07-15 1995-01-26 Girolamo Buonavoglia Dispositif electronique assurant une communication permanente ou discontinue entre des personnes et des objets
ES2085829A2 (es) * 1994-02-17 1996-06-01 Hervas Jose Luna Perfeccionamientos en la construccion de aparatos de alarma.
WO1995023394A1 (fr) * 1994-02-23 1995-08-31 Monaad Corporation Pty. Limited Systeme d'acces de securite
US5583486A (en) * 1994-02-23 1996-12-10 Monaad Corporation Pty Limited Security access arrangement
FR2725819A1 (fr) * 1994-07-19 1996-04-19 Patrick Andre Henri Chevalier Installation pour la protection de personnes exposees aux risques de chute dans de l'eau ou d'eloignement
EP0850467A4 (fr) * 1994-10-27 1999-10-13 Dan Schlager Systemes de surveillance a distance autopositionnants
EP0850467A2 (fr) * 1994-10-27 1998-07-01 Dan Schlager Systemes de surveillance a distance autopositionnants
US8149112B2 (en) 1994-10-27 2012-04-03 Mosaid Technologies Incorporated Multi-hazard alarm system using selectable power-level transmission and localization
US5640146A (en) * 1995-02-24 1997-06-17 Ntp Incorporated Radio tracking system and method of operation thereof
US5650769A (en) * 1995-02-24 1997-07-22 Ntp, Incorporated Radio receiver for use in a radio tracking system and a method of operation thereof
WO1997022200A1 (fr) * 1995-12-14 1997-06-19 Telia Ab Dispositif pour systeme d'alarme
EP0840265A1 (fr) * 1996-11-04 1998-05-06 E Lead Electronic Co., Ltd. Système d'alarme pour détecter l'éloignement entre plusieurs transmetteurs synchrones et un récepteur
BE1010749A3 (nl) * 1996-11-14 1999-01-05 Albrechts Roland Kombinatie van een radio-ontvanger en een door radiogolven gestuurd oppas of bewakingssysteem voor dierbaren en bewegende dierbaarheden.
EP0915442A1 (fr) * 1997-11-06 1999-05-12 Claudio Balzamo Système de sauvegarde personnel
WO1999064275A1 (fr) * 1998-06-08 1999-12-16 Peter Schepers Systeme de communication et dispositif d'alarme
WO2000025286A1 (fr) * 1998-10-23 2000-05-04 Braz Conceicao Aparecida Dispositif de detection pour personnes et pour animaux
US6512457B2 (en) 1999-11-15 2003-01-28 Hector Irizarry Monitoring device adapted for use with an electronic article surveillance system
EP1172778A2 (fr) * 2000-07-15 2002-01-16 Belk, Jonathan Simon Appareil d'alerte de sécurité
EP1172778A3 (fr) * 2000-07-15 2003-03-05 Jonathan Simon Belk Appareil d'alerte de sécurité
GB2368704A (en) * 2000-08-24 2002-05-08 Robert Thomas Kingsbury Wireless child distance monitoring alarm system with anti-tamper features
WO2003015045A1 (fr) * 2001-08-10 2003-02-20 Robert Lucas Appareil de surveillance d'un baigneur
US7259682B2 (en) 2003-02-13 2007-08-21 Safemind Ab Child distance and water immersion alarm
WO2004072922A1 (fr) * 2003-02-13 2004-08-26 Safemind Ab Alarme pour bebe
GB2399440A (en) * 2003-03-10 2004-09-15 Paul Sleeman Proximity alarm
DE102009014641A1 (de) * 2009-03-24 2010-10-07 Töteberg, Andreas System zur Verlustüberwachung und Positionsbestimmung
CN102324167A (zh) * 2011-05-31 2012-01-18 Tcl集团股份有限公司 一种防溺水报警方法及装置

Also Published As

Publication number Publication date
CA1287114C (fr) 1991-07-30
AU7396587A (en) 1987-11-24

Similar Documents

Publication Publication Date Title
CA1287114C (fr) Systeme de telesurveillance et d'alarme utilisant plusieurs mots codes numeriquement
US6144303A (en) Tag and system for patient safety monitoring
US5790035A (en) Reusable temperature and wetness alarm device for the diaper
US5486814A (en) Baby pool guard alarm
US4800370A (en) Wetness detection system
US5786767A (en) Home safety system
US4827943A (en) Portable, multi-channel, physiological data monitoring system
US5621388A (en) System for monitoring and locating a person within a preselected distance from a base-station
US4785291A (en) Distance monitor especially for child surveillance
US7009522B2 (en) Object-proximity monitoring and alarm system
US20020097155A1 (en) Combination breathing monitor alarm and audio baby alarm
US7019649B2 (en) Pool monitoring
US20070132578A1 (en) Monitoring system and method
US20030062996A1 (en) Object-proximity monitoring and alarm system
WO1996007998A1 (fr) Systeme d'alarme pour enfant
WO2005091818A2 (fr) Moniteur a distance utilise dans la detection d'arret cardiaque
WO2004075750A1 (fr) Systeme de surveillance d'enfants en bas age
US20020003478A1 (en) Infant monitoring system
US7023350B2 (en) Personal protection device
JP2002288771A (ja) 非常送信器
CN107063342A (zh) 温湿度检测无线短距离报警方法
US6476724B1 (en) Crib gate position indicator
US20190130726A1 (en) Doorway entry sentry auto caller
GB2459152A (en) Fire alarm detector for the deaf
US6764451B2 (en) Infant cardiac and apnea home monitoring system

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AU JP KP

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT LU NL SE