WO2002048979A1 - Systeme permettant de surveiller la perte d'un element mobile - Google Patents

Systeme permettant de surveiller la perte d'un element mobile Download PDF

Info

Publication number
WO2002048979A1
WO2002048979A1 PCT/DE2001/004672 DE0104672W WO0248979A1 WO 2002048979 A1 WO2002048979 A1 WO 2002048979A1 DE 0104672 W DE0104672 W DE 0104672W WO 0248979 A1 WO0248979 A1 WO 0248979A1
Authority
WO
WIPO (PCT)
Prior art keywords
receiver
handset
signal
receiving means
received
Prior art date
Application number
PCT/DE2001/004672
Other languages
German (de)
English (en)
Inventor
Peter Neumann
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2002048979A1 publication Critical patent/WO2002048979A1/fr

Links

Classifications

    • 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
    • G08B13/1409—Mechanical actuation by lifting or attempted removal of hand-portable articles for removal detection of electrical appliances by detecting their physical disconnection from an electrical system, e.g. using a switch incorporated in the plug connector
    • G08B13/1418—Removal detected by failure in electrical connection between the appliance and a control centre, home control panel or a power supply
    • 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
    • G08B21/0205—Specific application combined with child monitoring using a transmitter-receiver system
    • G08B21/0213—System disabling if a separation threshold is exceeded
    • 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

Definitions

  • the present invention relates to a system for monitoring the loss of a handset, such as a cell phone.
  • This problem is not only limited to mobile telephones, but can generally occur with any type of handset, for example also with a so-called PDA organizer, a portable CD player, a portable cassette player ("Walkman"), a pager, a remote control, etc. All these portable devices have in common that they can easily be left behind or even stolen by the owner or user, the user possibly noticing the loss until late and then hardly or not at all finding the corresponding device again is possible.
  • the present invention is therefore based on the object of proposing a way of determining the loss of such a mobile device or handset in good time and of being able to notify the respective user.
  • the dependent claims each define preferred and advantageous embodiments of the present invention.
  • it is proposed to assign to the mobile part to be monitored a portable receiver to be carried by the user of the mobile part, which forms a transmitting / receiving combination with the mobile part.
  • a wirelessly transmitted signal for example a radio signal, is generated by the handset to be monitored and is to be evaluated by the receiver. If the receiver cannot receive the signal sent by the handset or can no longer receive it properly, an alarm is generated by the receiver, which can be, for example, an acoustic alarm tone, an optical signaling or a vibration alarm.
  • the receiver interacting with the handset is to be carried by the respective user, so that the receiver generally triggers the alarm if the distance between the receiver and the respective handset becomes too great, which is the case, for example , if the handset has been left unintentionally in a certain place by the respective user or even stolen.
  • the receiver can be designed in particular in the form of a unit to be attached to the respective user, for example in the form of a belt clip, a so-called headset or the like.
  • the handset can regularly generate the signal to be received and evaluated by the receiver. As long as the receiver receives the signals generated by the handset, there is no reaction. However, if a predetermined distance between the receiver and the handset is exceeded, this means that the receiver can no longer receive a signal from the handset, so that the alarm described above is triggered. The user then has the option of returning to a defined range in which the signal sent by the handset can be received by the receiver carried by the user, which results in As a result, the alarm is deactivated again by the receiver.
  • the proposed system thus also provides a simple possibility of locating the handset, since in this case the alarm is preferably activated by the receiver until the distance between the receiver and the handset has fallen below a certain tolerable limit.
  • the present invention is particularly suitable for monitoring, but is not limited to, the loss of mobile telephones. Rather, as has already been indicated above, the present invention is generally applicable for monitoring relatively small and handy mobile devices, which are consequently used by can easily be left behind or even stolen by the appropriate owner or user.
  • the receiver which receives and evaluates the signal sent by the mobile telephone also generates a signal to be received and evaluated by the mobile telephone, so that the mobile telephone can be locked, for example, by locking the keyboard can deactivate itself if, when the predetermined distance between the receiver and the mobile phone is exceeded, the signal sent by the receiver can no longer be received.
  • the locking of the keyboard of the mobile phone is preferably maintained as long as the predetermined distance between the receiver and the mobile phone is exceeded, i.e. until the mobile phone can again receive the signal sent by the receiver with a predetermined minimum signal level.
  • FIG. 1 schematically shows a system for monitoring the loss of a mobile part designed in the form of a mobile telephone according to a first exemplary embodiment of the present invention
  • Figure 2 shows the structure of a receiver shown in Figure 1 and cooperating with the mobile phone and the mobile phone according to a second embodiment of the present invention.
  • FIG. 1 shows a mobile telephone 3 which generates a special radio signal via an air interface which is in any case formed in the mobile telephone 3 for transmitting or receiving mobile radio signals.
  • a receiver 2 is provided, which in the exemplary embodiment shown is designed in the form of a belt clip to be attached to a belt 1 of the user of the mobile telephone 3.
  • the receiver 2 evaluates the radio signal generated continuously or repeatedly by the mobile telephone 3 and generates an alarm if the radio signal of the mobile telephone 3 cannot be received at all or cannot be received with a predetermined signal level.
  • the alarm generated by the receiver 2 can be, for example, an acoustic alarm tone, an optical signaling and / or a vibration alarm.
  • the receiver 2 will no longer be able to receive the radio signal transmitted by the cell phone 3, in particular if the distance between the cell phone 3 and the receiver 2 exceeds a certain tolerable limit value, which depends on the transmission power level of the radio signal generated by the cell phone 3 is. In this way, the receiver 2 can reliably determine if the mobile phone 3 has been left unintentionally by the user who is carrying the receiver 2, or if the mobile phone 3 has even been stolen.
  • the alarm is activated by the evaluation unit 6 until the signal level of the received radio signal again corresponds to the predetermined minimum signal level, which is the case, for example, when the distance between the receiver 2 and the cell phone 3 is reduced again to a certain tolerable limit value becomes.
  • the receiver 2 also has a transmitter unit 8 for generating a special radio signal, which transmits via the air interface 4 and the antenna 9 to the mobile phone 3 and from there via the antenna 18 and the air interface 10 and from a correspondingly designed receiving unit 15 is received.
  • the radio signal received by the receiver 2 is fed analogously to the procedure described above to an evaluation unit 16 which evaluates the signal level of the radio signal received by the receiver 2 and in the event that the radio signal could not be received at all or could not be received with a predetermined minimum signal level, activates a control unit 17 which locks or locks the aforementioned keyboard 19 to deactivate the mobile telephone 3. In this way it is ensured that the mobile telephone 3, if it has been left lying or stolen, cannot be used by an unauthorized person, ie no more entries are possible.
  • the deactivation of the mobile telephone 3 is maintained as long as the evaluation unit 16 determines that the signal level of the radio signal received by the receiver 2 is too low. If the mobile telephone 3 is again within a tolerable range with respect to the receiver 2, this results in an increase in the signal level of the radio signal received by the receiver 2 above the predetermined minimum signal level, which is determined accordingly by the evaluation unit 16 and passed on to the control unit 17, which then unlocks the keyboard 19 again and thus reactivates the mobile phone 3.
  • the previously mentioned tolerable ranges, at which the receiver 2 has not yet activated the alarm 7 or the mobile phone 3 has not yet locked the keyboard 19, do not have to match, but can have different dimensions.
  • the system described above can be supplemented by providing a distance warning as a "preliminary stage" before the alarm 7 is triggered, which warning can be given, for example, in the form of an acoustic or visual message.
  • the evaluation unit 6 generates this message when a first distance d1 between the mobile telephone 3 and the receiver 2 is exceeded, which can be achieved technically with the aid of a transit time measurement with a good signal level of the received radio signal. That If the evaluation unit 6 determines a signal transit time of the received radio signal that exceeds a certain limit value, the message is generated.
  • a second distance d2> dl is exceeded, the alarm 7 is finally triggered, this being able to be detected as described by monitoring the signal level of the received radio signal with respect to the predetermined minimum signal level or by detecting an interruption in the radio connection.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Child & Adolescent Psychology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephone Function (AREA)
  • Emergency Alarm Devices (AREA)

Abstract

L'objectif de la présente invention est d'informer à temps une personne possédant un élément mobile (3), tel qu'un téléphone portable, qu'elle a perdu cet élément mobile. A cette fin, un signal spécifique est envoyé par l'élément mobile (3) et un récepteur portable (2) que ladite personne possédant ledit élément mobile (3) porte sur elle permet de recevoir et d'analyser ce signal spécifique. Une alarme est déclenchée dès que le récepteur (2) ne peut plus recevoir le signal envoyé par l'élément mobile (3) avec un niveau de signal minimum prédéfini.
PCT/DE2001/004672 2000-12-14 2001-12-12 Systeme permettant de surveiller la perte d'un element mobile WO2002048979A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10062378.6 2000-12-14
DE2000162378 DE10062378A1 (de) 2000-12-14 2000-12-14 System zum Überwachen des Verlusts eines Mobilteils

Publications (1)

Publication Number Publication Date
WO2002048979A1 true WO2002048979A1 (fr) 2002-06-20

Family

ID=7667163

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2001/004672 WO2002048979A1 (fr) 2000-12-14 2001-12-12 Systeme permettant de surveiller la perte d'un element mobile

Country Status (2)

Country Link
DE (1) DE10062378A1 (fr)
WO (1) WO2002048979A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006076785A1 (fr) * 2005-01-21 2006-07-27 Odair Menegotto Amelioration apportee a un telephone cellulaire et a des produits associes equipes d'un detecteur d'avertissement a distance d'un utilisateur
EP2009956A2 (fr) * 2007-06-25 2008-12-31 Modelabs Technologies Limited Dispositif de contrôle de l'éloignement d'un accessoire portable de téléphonie, tel qu'une oreillette, et d'un téléphone cellulaire
EP2073179A1 (fr) * 2007-12-19 2009-06-24 Harman/Becker Automotive Systems GmbH Système de protection contre le vol et procédé pour l'activation d'un mode de fonctionnement d'un dispositif électronique

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005151392A (ja) * 2003-11-19 2005-06-09 Nec Corp 紛失・不正使用防止機能を備えた携帯通信端末

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0838908A2 (fr) * 1996-10-23 1998-04-29 Nokia Mobile Phones Ltd. Détecteur de proximité pour un radiotéléphone
EP0838907A2 (fr) * 1996-10-23 1998-04-29 Nokia Mobile Phones Ltd. Détecteur de proximité pour un radiotéléphone
US5796338A (en) * 1997-02-03 1998-08-18 Aris Mardirossian, Inc. System for preventing loss of cellular phone or the like
WO2000068761A1 (fr) * 1999-05-07 2000-11-16 Com Dev International Ltd. Systeme sans fil de commutation de proximite a utiliser a des fins de lutte contre la dependance au jeu
US6151493A (en) * 1997-09-04 2000-11-21 Miyaken Co., Ltd. Device for prohibiting unauthorized use of electronic devices

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0838908A2 (fr) * 1996-10-23 1998-04-29 Nokia Mobile Phones Ltd. Détecteur de proximité pour un radiotéléphone
EP0838907A2 (fr) * 1996-10-23 1998-04-29 Nokia Mobile Phones Ltd. Détecteur de proximité pour un radiotéléphone
US5796338A (en) * 1997-02-03 1998-08-18 Aris Mardirossian, Inc. System for preventing loss of cellular phone or the like
US6151493A (en) * 1997-09-04 2000-11-21 Miyaken Co., Ltd. Device for prohibiting unauthorized use of electronic devices
WO2000068761A1 (fr) * 1999-05-07 2000-11-16 Com Dev International Ltd. Systeme sans fil de commutation de proximite a utiliser a des fins de lutte contre la dependance au jeu

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006076785A1 (fr) * 2005-01-21 2006-07-27 Odair Menegotto Amelioration apportee a un telephone cellulaire et a des produits associes equipes d'un detecteur d'avertissement a distance d'un utilisateur
EP2009956A2 (fr) * 2007-06-25 2008-12-31 Modelabs Technologies Limited Dispositif de contrôle de l'éloignement d'un accessoire portable de téléphonie, tel qu'une oreillette, et d'un téléphone cellulaire
EP2009956A3 (fr) * 2007-06-25 2012-01-25 Bluetrek Technologies Limited Dispositif de contrôle de l'éloignement d'un accessoire portable de téléphonie, tel qu'une oreillette, et d'un téléphone cellulaire
EP2073179A1 (fr) * 2007-12-19 2009-06-24 Harman/Becker Automotive Systems GmbH Système de protection contre le vol et procédé pour l'activation d'un mode de fonctionnement d'un dispositif électronique

Also Published As

Publication number Publication date
DE10062378A1 (de) 2002-06-20

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