EP2372666A2 - Détecteur d'objets - Google Patents

Détecteur d'objets Download PDF

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Publication number
EP2372666A2
EP2372666A2 EP11405234A EP11405234A EP2372666A2 EP 2372666 A2 EP2372666 A2 EP 2372666A2 EP 11405234 A EP11405234 A EP 11405234A EP 11405234 A EP11405234 A EP 11405234A EP 2372666 A2 EP2372666 A2 EP 2372666A2
Authority
EP
European Patent Office
Prior art keywords
mobile phone
ble
signal
energy
gsm
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.)
Withdrawn
Application number
EP11405234A
Other languages
German (de)
English (en)
Other versions
EP2372666A3 (fr
Inventor
Marcel Meli
Shahrnaz Martin
Charles Brom
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.)
Nexintec AG
Original Assignee
Nexintec AG
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 Nexintec AG filed Critical Nexintec AG
Publication of EP2372666A2 publication Critical patent/EP2372666A2/fr
Publication of EP2372666A3 publication Critical patent/EP2372666A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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 SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting

Definitions

  • the invention is in the field of electronic detection of objects.
  • a mobile phone is used as a tool for finding the location of an object.
  • the objects capable of detection have a communicable electronic system.
  • the object for example a pair of glasses, has a GSM antenna installed in the frame, for example in the bracket, which picks up the energy for a Bluetooth Low Energy BLE circuit, which is also accommodated in the frame of the glasses.
  • the BLE circuit has its own BLE antenna for communication with the BLE part of the mobile phone. It therefore needs (preferably) no battery and can be operated as often as desired without any wear.
  • the object here the glasses, sends, as soon as the operating voltage has set, a Bluetooth signal that can be detected by a mobile phone with Bluetooth announced. For example, a display on the phone displays a signal strength icon. If one approaches the sending object, the symbol enlarges, and if one moves away, it narrows down.
  • the symbol may be an arrow or a ring whose diameter changes, it may be coupled with an audio signal.
  • Bluetooth Low Energy is a radio standard in the 2.4 GHz radio frequency band, which is intended to be installed in mobile phones and PC computers.
  • the dual-stack version for normal and BLE Bluetooth which is integrated in mobile phones, allows the connection with classic Bluetooth as well as with low-energy Bluetooth BLE. If the BLE transceiver or transmitter is now installed in the object to be detected, it only needs very little energy to make itself felt. This refers to it from the surrounding GSM field, which is transmitted by the mobile phone.
  • the invention uses, as already said, a so-called "energy harvesting" for the operation of a BLE transceiver.
  • the energy is taken from the transmitted GSM frequency band, either permanently or via a dummy call from the GSM transmitter of the mobile phone is sent out.
  • the energy is absorbed by all those objects that have a BLE transceiver.
  • Each object is programmed to respond to a call when its address is addressed. In this way objects can be personified, so to speak.
  • FIG. 1 shows four arbitrarily arranged objects A, B, C and D, as well as a GSM frequency transmitting mobile phone.
  • the electromagnetic field is indicated by dashed arcs.
  • the objects are in this electromagnetic field.
  • the object is excellent with a BLE circuit and responds to the mobile phone, which is represented by a jagged double arrow.
  • the search process takes place via this dialog.
  • the other objects are not responding, although one or the other may be equipped with BLE, but react to a different address.
  • FIG. 2 shows an example of the blocks that must be present on the one hand in the object and on the other hand in the mobile phone.
  • Mobile phone A display for displaying the proximity and / or audio signal transmitters that are controlled via RSSI signals.
  • One GSM and BLE transceiver each with the corresponding antenna, as well as a processor for processing and processing the signals and outputs.
  • a dual-stack mobile phone has it all. So it still needs the necessary for the development and development of software, for example, a corresponding applet.
  • Object An energy harvesting device or GSM antenna, a BLE transceiver with BLE antenna and a processor for the exchange of information between object and mobile phone.
  • FIG. 3 now shows a sequence from the readiness of the mobile phone to the RSSI signal, which indicates the spatial distance to the object and a flow in the object through which processes the communication is established.
  • the software of the search mode is switched on, whereupon a GSM signal is sent out.
  • this may be a dummy-call or a continuous signal, it is essential that a GSM field is established and maintained from which the BLE electronics of the object can draw the energy.
  • the electronics charge up to the operating voltage until it is sufficient and then send via the second antenna, the BLE antenna signals, which are detected by the BLE part of the mobile phone.
  • the BLE part of the mobile phone constantly asks for the signal until it can be received. If it is there, the signal code is checked and upon identification of the searched object, the RSSI signal is given in an adequate form on the display.
  • the search process can begin.
  • Mobile phone side Object side comments The user goes with the mobile phone in a mode that sends a transmission signal.
  • the BLE transceiver switches to BLE communication and waits for a BLE signal from the object.
  • the radiated energy can also be intermittent, but it always depends on the signal strength, how big the range to an object is ..
  • the object is located near the mobile phone and picks up energy from it.
  • the object starts to transmit and waits for a signal from the BLE part of the mobile phone. If the user does not receive an object signal after a certain time, the display on the mobile phone can give an indication that the antenna of the mobile phone has a different orientation.
  • the electromagnetic field is stationary.
  • the mobile phone measures the RSSI and outputs a corresponding distance indicating signal.
  • the object receives the message from the mobile phone and sends back a signal which again causes a distance indicating signal RSSI.
  • a variant would be that the object constantly sends a pre-programmed message without 'listening' to the mobile, saving energy. An rx-mode is not necessary.
  • the electromagnetic field is at standstill and the RSSI is measured by the mobile phone and converted into an audio signal corresponding to the distance This goes back and forth until the system is stopped by the mobile phone
  • the objects have a sense of identification, which are displayed translated on the display, for example, as glasses, wallet, keychain etc. appear in appearance and are controllable. Only the search mobile phone should not be embarrassed. Where the range can be small, the identification can be used, for example, for files, folders, books, etc. in racks and on tables.
  • FIG. 4 shows one more way how you can generate on the display of the mobile phone, for example, a trend-setting signal or lcon. If one considers the propagation of the RSSI signal from the object O to the mobile phone M as a potential well, a path leads to the object from any point on its shell, where the mobile phone is notebene. This path can be represented as an arrow pointing away or away from the object. One can represent the arrow variable in length, which represents the spatial distance to the object. Of course, there are many varieties, for example, with numbers that take smaller values the closer you are to the object, to the familiar "bingo", when the object is in close proximity.
  • the device uses the mobile phone communication of the GMS standard only to provide energy for the lower energy BLE communication.
  • the mobile phone communicates with it only via its BLE part, but is with the GSM part of energy provider for the BLE remote station of the OLCD.
  • GSM Global System for Mobile communications

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Electromagnetism (AREA)
  • Mobile Radio Communication Systems (AREA)
EP11405234A 2010-03-22 2011-03-21 Détecteur d'objets Withdrawn EP2372666A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH4202010A CH702914A2 (de) 2010-03-22 2010-03-22 Objektfinder.

Publications (2)

Publication Number Publication Date
EP2372666A2 true EP2372666A2 (fr) 2011-10-05
EP2372666A3 EP2372666A3 (fr) 2012-07-25

Family

ID=41076740

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11405234A Withdrawn EP2372666A3 (fr) 2010-03-22 2011-03-21 Détecteur d'objets

Country Status (2)

Country Link
EP (1) EP2372666A3 (fr)
CH (1) CH702914A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104317067A (zh) * 2014-09-23 2015-01-28 陈刚 一种防丢眼镜以及眼镜防丢搜寻方法
WO2015052611A1 (fr) 2013-10-09 2015-04-16 Hänggi Daniel Procédé de détection d'objets manquants et application du procédé

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105824253B (zh) * 2016-01-21 2018-02-09 中国地质大学（北京） 一种基于蓝牙与微波技术的无线控制电法勘探仪器及其方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1377946A1 (fr) * 2001-03-12 2004-01-07 Eureka Technologies Partners, LLc Systeme de localisation d'objets
ES2382802T3 (es) * 2004-08-26 2012-06-13 Swisscom Ag Procedimiento y sistema para localizar objetos perdidos o robados
US20060094399A1 (en) * 2004-10-29 2006-05-04 Dupont Pierre B Asset security system application using mobile station having an integrated transponder reader
GB0700875D0 (en) * 2007-01-17 2007-02-21 Zeroed In Ltd Radio proximity monitoring

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015052611A1 (fr) 2013-10-09 2015-04-16 Hänggi Daniel Procédé de détection d'objets manquants et application du procédé
CN104317067A (zh) * 2014-09-23 2015-01-28 陈刚 一种防丢眼镜以及眼镜防丢搜寻方法

Also Published As

Publication number Publication date
EP2372666A3 (fr) 2012-07-25
CH702914A2 (de) 2011-09-30

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