WO2004057361A1 - Procede et systeme de determination acoustique de la position - Google Patents

Procede et systeme de determination acoustique de la position Download PDF

Info

Publication number
WO2004057361A1
WO2004057361A1 PCT/IB2003/005892 IB0305892W WO2004057361A1 WO 2004057361 A1 WO2004057361 A1 WO 2004057361A1 IB 0305892 W IB0305892 W IB 0305892W WO 2004057361 A1 WO2004057361 A1 WO 2004057361A1
Authority
WO
WIPO (PCT)
Prior art keywords
location
receiver
beacon
sonic signal
inaudible sonic
Prior art date
Application number
PCT/IB2003/005892
Other languages
English (en)
Inventor
David P. Walker
Paul J. Rankin
Sebastian Egner
Original Assignee
Koninklijke Philips Electronics N.V.
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 Koninklijke Philips Electronics N.V. filed Critical Koninklijke Philips Electronics N.V.
Priority to AU2003303266A priority Critical patent/AU2003303266A1/en
Publication of WO2004057361A1 publication Critical patent/WO2004057361A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/72—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using ultrasonic, sonic or infrasonic waves
    • G01S1/725—Marker, boundary, call-sign or like beacons transmitting signals not carrying directional information
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/18—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using ultrasonic, sonic, or infrasonic waves

Definitions

  • the present invention relates to a method and system that allows a device to determine its location within a number of predetermined locations.
  • GPS Global Positioning System
  • the Global Positioning System is well known for allowing a person to triangulate their position in dependence on a number of received signals from satellites.
  • the cost overhead of implementing and maintaining the satellites along with the cost of components to construct the necessary receivers means that systems based on this technology will remain relatively expensive.
  • accuracy of the system is reduced in certain locations due to signals slowing down as they pass through the ionosphere and troposphere. System accuracy is also reduced in built-up areas where signals bounce off sky scrapers and the like.
  • the Oxygen Project at Massachusetts Institute of Technology have developed a system called Crickets (http://nms.lcs.mit.edu/cricket/..
  • Crickets http://nms.lcs.mit.edu/cricket/..
  • the system is an indoor location system allowing applications to be location-aware. In this manner, applications run on an appropriate device can operate or deliver information based on the position and/or orientation of the device. Location determination is achieved using a combination of RF and ultrasound technologies.
  • Wall and ceiling mounted beacons are spread throughout a building, publishing information on an RF signal operating in the 418 MHz AM band. With each RF advertisement, a beacon also transmits a concurrent ultrasonic pulse. Upon receipt of an RF signal, devices listen for the corresponding ultrasonic pulse.
  • An estimate of distance between the device and beacon is then determined using the difference in RF and ultrasound propagation times. Where several beacon signals are received, the beacon with the closest distance estimate is selected.
  • the goal of the system is to achieve a close to 100% precision of determining location with a granularity of a few feet.
  • the system has several disadvantages. Firstly the system is expensive to install as each beacon requires an ultrasonic and RF transmitter and each receiver requires an ultrasonic and RF receiver. Secondly, extra hardware is required on the receiving device. Typically, such systems will be implemented for use with small form factor receiving devices such as personal digital assistants (PDAs) or other devices designed to be used on the move. The integration of extra hardware on such devices is not possible in many cases and even if it is possible is not desirable as it makes the devices more cumbersome to carry and use.
  • PDAs personal digital assistants
  • a location determination system comprising a beacon and a receiver, the beacon being arranged to broadcast an inaudible sonic signal within a location, said signal including data for identifying the location, wherein the receiver is arranged to receive the signal when in the location and determine the location in dependence on the data. Determining location to a high accuracy level, particularly in small-scale indoor environments, is not often needed in day to day applications.
  • the present invention seeks to provide a simple, low cost, system and method allowing a device to determine its location within a reasonable level of accuracy.
  • the inaudible sonic signal may comprise an ultrasound signal.
  • the inaudible sonic signal may comprise audio-encoded data transmitted at a frequency higher than human hearing range.
  • the inaudible sonic signal may comprise audio-encoded data transmitted at a power level undetectable by a human ear.
  • the receiver may comprise a mobile telephone.
  • the receiver may comprise a PDA.
  • a method permitting determination of location of a receiver within a set of predetermined locations comprising: positioning a beacon within each predetermined location; and, broadcasting, from each beacon, an inaudible sonic signal within the respective predetermined location for identifying the location.
  • Figure 1 is a schematic diagram of a system according to an embodiment of the present invention.
  • Figure 1 is a schematic diagram of a system according to an embodiment of the present invention.
  • a location 10 includes a number of audio beacons 20a-20e.
  • Each beacon 20a-20e is installed in a sub-location 10a-10e and is arranged to broadcast audio-encoded data within the respective sub-location 10a-10e.
  • a receiver 30 includes a microphone 35 or other suitable device for receiving the audio-encoded data.
  • the audio-encoded data is preferably transmitted so that it is inaudible. This may be achieved by transmitting at a frequency higher than the average human hearing range, at an ultrasonic frequency and/or at a power low enough that it that cannot be detected by the average human ear.
  • Each beacon 20a-20e broadcasts different audio-encoded data, each including location information concerning the respective sub-location.
  • the audio-encoded data may include some form of identifier in dependence on which the location information can be derived or obtained.
  • the location information could be a set of Cartesian coordinates, a postcode, a URL to a website containing information on the sub-location, a predetermined position on a map or some other form of location specification.
  • the information could be encoded or encrypted and access may be limited to subscribers of the respective service.
  • the information may denote the type of room such as meeting room, which may trigger a predetermined mode of operation by the receiver. For example, if the receiver had telephony capabilities, information received indicating that it is in a meeting room may set it to silent or vibrate only on incoming calls.
  • the audio-encoded data is broadcast throughout the respective sub-location 10a-10e.
  • the receiver 30 is positioned in sub-location 10c. Therefore, audio-encoded data from beacon 20c is received by the microphone 35 and the receiver is able to determine it is in sub-location 10c and act. appropriately. If the receiver 30 was to be moved out of the sub-location 10c into a sub-location that lacked a beacon 20a-20e such as location 40, no audio-encoded data would be received and the receiver would act appropriately. When the receiver enters a sub-location 10a-10e with an installed beacon 20a-20e, the microphone 35 would again receive the respective audio-encoded data and the receiver 30 would be able to determine its location and act appropriately.
  • the frequency of broadcasts is dependent on the intended application and the environment. For example, if a user is expected to spend some time in a sub-location 10a-10e then the broadcast rate can be set at a relatively low level. However, where users are expected to move quickly then the broadcast rate may be set at a higher level. Lower transmission rates will lead to lower power consumption by the beacons 20a-20e. A similar consideration must be made when setting the frequency of polling by the receiver 30. The amount of time the microphone 35 is active must be balanced against power consumption.
  • each sub-location 10a-10e is a room.
  • the audio-encoded data signals can be flooded throughout the room as walls will prevent the majority of the signals escaping the room.
  • the location of the beacon 20a-20e can be hidden away and does not need detailed consideration as the signals will propagate around the room by bouncing off of walls and other objects.
  • the receiver 30 is a PDA, mobile telephone or similar device that is portable and incorporates a microphone.
  • beacons could be installed by areas of interest and receivers could be issued to tourists or visitors to guide them around the location.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé et un système de détermination de position. Ce système comprend une balise (20) et un récepteur (30). La balise (20) est conçue pour diffuser un signal acoustique inaudible dans la position (10) à déterminer. Le signal contient des données permettant de déterminer la position (10). Le récepteur est conçu pour recevoir le signal lorsqu'il se trouve dans la position (10) à déterminer, et pour identifier cette position en fonction des données reçues.
PCT/IB2003/005892 2002-12-19 2003-12-09 Procede et systeme de determination acoustique de la position WO2004057361A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003303266A AU2003303266A1 (en) 2002-12-19 2003-12-09 Acoustic location determination method and system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0229693.7 2002-12-19
GB0229693A GB0229693D0 (en) 2002-12-19 2002-12-19 Location determination method and system

Publications (1)

Publication Number Publication Date
WO2004057361A1 true WO2004057361A1 (fr) 2004-07-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2003/005892 WO2004057361A1 (fr) 2002-12-19 2003-12-09 Procede et systeme de determination acoustique de la position

Country Status (3)

Country Link
AU (1) AU2003303266A1 (fr)
GB (1) GB0229693D0 (fr)
WO (1) WO2004057361A1 (fr)

Cited By (15)

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WO2006058112A1 (fr) * 2004-11-24 2006-06-01 Qualcomm Incorporated Procede et appareil permettant de determiner la localisation d'un dispositif sans fil dans un environnement
EP1947471A1 (fr) * 2007-01-16 2008-07-23 Harman Becker Automotive Systems GmbH Système de poursuite utilisant des signaux audio en dessous du seuil d'audibilité
US8744754B2 (en) 2011-03-29 2014-06-03 Inventio Ag User guidance with mobile electronic devices
WO2014089040A1 (fr) * 2012-12-03 2014-06-12 University Of Florida Research Foundation, Inc. Appareil, procédé et systèmes de logiciel pour une localisation en intérieur à grains fins basée sur un téléphone intelligent
EP2460126A4 (fr) * 2009-07-29 2014-09-24 Shopkick Inc Procédé et système de détection de présence
DE102014101296A1 (de) * 2014-02-03 2015-08-06 Contnet AG Positionsbestimmung eines Nutzer-Endgeräts mittels Schallwellen
US9130664B2 (en) 2012-10-17 2015-09-08 Qualcomm Incorporated Wireless communications using a sound signal
US9177468B2 (en) 2008-08-25 2015-11-03 Koninklijke Philips N.V. Ultrasonic transmission / reception for electromagnetic transmission reception
US9264151B1 (en) 2009-07-29 2016-02-16 Shopkick, Inc. Method and system for presence detection
WO2016166783A1 (fr) * 2015-04-17 2016-10-20 Sony Mobile Communications Inc. Détection d'emplacement intérieur utilisant un système de balise à signal à fréquence radio et à signal à fréquence audio combinés
WO2016193897A1 (fr) * 2015-05-29 2016-12-08 Verity Studios Ag Procédés et systèmes de planification de l'émission de signaux de localisation et de fonctionnement d'appareil d'auto-localisation
US9661472B2 (en) 2015-05-29 2017-05-23 Verity Studios Ag Methods and systems for scheduling the transmission of localization signals and operating self-localizing apparatus
US9885773B2 (en) 2015-03-07 2018-02-06 Verity Studios Ag Distributed localization systems and methods and self-localizing apparatus
TWI655449B (zh) * 2017-05-23 2019-04-01 申雲洪 定位物件方法與導引移動方法
SE1850083A1 (en) * 2018-01-25 2019-07-26 Total Security Stockholm Ab Determining a position of a portable electronic device

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WO2002045273A2 (fr) * 2000-11-30 2002-06-06 Scientific Generics Limited Systeme de communication

Patent Citations (2)

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US20020021621A1 (en) * 2000-03-22 2002-02-21 Haase Wayne C. Tracking, safety and navigation system for firefighters
WO2002045273A2 (fr) * 2000-11-30 2002-06-06 Scientific Generics Limited Systeme de communication

Cited By (44)

* Cited by examiner, † Cited by third party
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TWI479173B (zh) * 2004-11-24 2015-04-01 Qualcomm Inc 用於判定無線器件在環境中之位置之方法及裝置
WO2006058112A1 (fr) * 2004-11-24 2006-06-01 Qualcomm Incorporated Procede et appareil permettant de determiner la localisation d'un dispositif sans fil dans un environnement
US7426197B2 (en) 2004-11-24 2008-09-16 Qualcomm Incorporated Method and apparatus for location determination of a wireless device within an environment
KR100945986B1 (ko) * 2004-11-24 2010-03-09 콸콤 인코포레이티드 하나의 환경 내에서 무선 디바이스의 위치 결정을 위한방법 및 장치
JP4728342B2 (ja) * 2004-11-24 2011-07-20 クゥアルコム・インコーポレイテッド 環境内で無線デバイスの位置決定のための方法及び装置
TWI583980B (zh) * 2004-11-24 2017-05-21 高通公司 用於判定無線器件在環境中之位置之方法及裝置
JP2008522499A (ja) * 2004-11-24 2008-06-26 クゥアルコム・インコーポレイテッド 環境内で無線デバイスの位置決定のための方法及び装置
EP1947471A1 (fr) * 2007-01-16 2008-07-23 Harman Becker Automotive Systems GmbH Système de poursuite utilisant des signaux audio en dessous du seuil d'audibilité
US8121319B2 (en) 2007-01-16 2012-02-21 Harman Becker Automotive Systems Gmbh Tracking system using audio signals below threshold
US9177468B2 (en) 2008-08-25 2015-11-03 Koninklijke Philips N.V. Ultrasonic transmission / reception for electromagnetic transmission reception
US9886696B2 (en) 2009-07-29 2018-02-06 Shopkick, Inc. Method and system for presence detection
EP2460126A4 (fr) * 2009-07-29 2014-09-24 Shopkick Inc Procédé et système de détection de présence
US9159066B2 (en) 2009-07-29 2015-10-13 Shopkick, Inc. Method and system for adaptive offer determination
US9264151B1 (en) 2009-07-29 2016-02-16 Shopkick, Inc. Method and system for presence detection
US11507968B2 (en) 2009-07-29 2022-11-22 Shopkick, Inc. Method and system for presence detection
US10909562B2 (en) 2009-07-29 2021-02-02 Shopkick, Inc. Method and system for presence detection
US10304069B2 (en) 2009-07-29 2019-05-28 Shopkick, Inc. Method and system for presentment and redemption of personalized discounts
US10255614B2 (en) 2009-07-29 2019-04-09 Shopkick, Inc. Method and system for detecting presence using a WiFi network probe detector
US9580272B2 (en) 2011-03-29 2017-02-28 Inventio Ag User guidance with mobile electronic devices
US8744754B2 (en) 2011-03-29 2014-06-03 Inventio Ag User guidance with mobile electronic devices
US9130664B2 (en) 2012-10-17 2015-09-08 Qualcomm Incorporated Wireless communications using a sound signal
WO2014089040A1 (fr) * 2012-12-03 2014-06-12 University Of Florida Research Foundation, Inc. Appareil, procédé et systèmes de logiciel pour une localisation en intérieur à grains fins basée sur un téléphone intelligent
US9894531B2 (en) 2012-12-03 2018-02-13 University Of Florida Research Foundation, Incorporated Apparatus, method, and software systems for smartphone-based fine-grained indoor localization
DE102014101296A1 (de) * 2014-02-03 2015-08-06 Contnet AG Positionsbestimmung eines Nutzer-Endgeräts mittels Schallwellen
US11378985B2 (en) 2015-03-07 2022-07-05 Verity Ag Distributed localization systems and methods and self-localizing apparatus
US9945929B2 (en) 2015-03-07 2018-04-17 Verity Studios Ag Distributed localization systems and methods and self-localizing apparatus
US10908619B2 (en) 2015-03-07 2021-02-02 Verity Ag Distributed localization systems and methods and self-localizing apparatus
US9885773B2 (en) 2015-03-07 2018-02-06 Verity Studios Ag Distributed localization systems and methods and self-localizing apparatus
US10302737B2 (en) 2015-03-07 2019-05-28 Verity Studios Ag Distributed localization systems and methods and self-localizing apparatus
US9955315B2 (en) 2015-04-17 2018-04-24 Sony Mobile Communications Inc. Indoor location detection using combined radio frequency signal and audio frequency signal beacon system
WO2016166783A1 (fr) * 2015-04-17 2016-10-20 Sony Mobile Communications Inc. Détection d'emplacement intérieur utilisant un système de balise à signal à fréquence radio et à signal à fréquence audio combinés
US11595795B2 (en) 2015-05-29 2023-02-28 Verity Ag Methods and systems for scheduling the transmission of localization signals and operating self-localizing apparatus
US11924719B2 (en) 2015-05-29 2024-03-05 Verity Ag Methods and systems for scheduling the transmission of localization signals and operating self-localizing apparatus
US10440533B2 (en) 2015-05-29 2019-10-08 Verity Studios Ag Methods and systems for scheduling the transmission of localization signals and operating self-localizing apparatus
US9661472B2 (en) 2015-05-29 2017-05-23 Verity Studios Ag Methods and systems for scheduling the transmission of localization signals and operating self-localizing apparatus
US10721602B2 (en) 2015-05-29 2020-07-21 Verity Studios Ag Methods and systems for scheduling the transmission of localization signals and operating self-localizing apparatus
WO2016193897A1 (fr) * 2015-05-29 2016-12-08 Verity Studios Ag Procédés et systèmes de planification de l'émission de signaux de localisation et de fonctionnement d'appareil d'auto-localisation
US11259154B2 (en) 2015-05-29 2022-02-22 Verity Ag Methods and systems for scheduling the transmission of localization signals and operating self-localizing apparatus
CN107923963A (zh) * 2015-05-29 2018-04-17 维里蒂工作室股份公司 用于调度定位信号传输和操作自定位装置的方法和系统
US10111044B2 (en) 2015-05-29 2018-10-23 Verity Studios Ag Methods and systems for scheduling the transmission of localization signals and operating self-localizing apparatus
EP4254013A3 (fr) * 2015-05-29 2023-12-27 Verity AG Procédés et systèmes de planification de l'émission de signaux de localisation et de fonctionnement d'appareil d'auto-localisation
US10321286B2 (en) 2015-05-29 2019-06-11 Verity Studios Ag Methods and systems for scheduling the transmission of localization signals and operating self-localizing apparatus
TWI655449B (zh) * 2017-05-23 2019-04-01 申雲洪 定位物件方法與導引移動方法
SE1850083A1 (en) * 2018-01-25 2019-07-26 Total Security Stockholm Ab Determining a position of a portable electronic device

Also Published As

Publication number Publication date
GB0229693D0 (en) 2003-01-29
AU2003303266A1 (en) 2004-07-14

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