EP1285284A1 - Procede et dispositif permettant de determiner par radio la position et/ou l'orientation d'au moins un objet - Google Patents

Procede et dispositif permettant de determiner par radio la position et/ou l'orientation d'au moins un objet

Info

Publication number
EP1285284A1
EP1285284A1 EP01936009A EP01936009A EP1285284A1 EP 1285284 A1 EP1285284 A1 EP 1285284A1 EP 01936009 A EP01936009 A EP 01936009A EP 01936009 A EP01936009 A EP 01936009A EP 1285284 A1 EP1285284 A1 EP 1285284A1
Authority
EP
European Patent Office
Prior art keywords
signal
interrogation
sensor elements
sensor
modulation
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Withdrawn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
EP01936009A
Other languages
German (de)
English (en)
Inventor
Franz Dollinger
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Publication of EP1285284A1 publication Critical patent/EP1285284A1/fr
Withdrawn legal-status Critical Current

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
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/14—Systems for determining direction or deviation from predetermined direction
    • G01S3/46—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems
    • 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
    • G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/0247—Determining attitude
    • 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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/75—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors
    • G01S13/751—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors wherein the responder or reflector radiates a coded signal
    • G01S13/755—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors wherein the responder or reflector radiates a coded signal using delay lines, e.g. acoustic delay lines
    • 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
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/14—Systems for determining direction or deviation from predetermined direction
    • G01S3/46—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems
    • G01S3/48—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems the waves arriving at the antennas being continuous or intermittent and the phase difference of signals derived therefrom being measured

Definitions

  • the invention relates to a method according to the preamble of patent claim 1 and a device according to the preamble of patent claim 5.
  • SAW surface waves
  • the OF component works passively, i.e. it does not require its own energy source or power supply. The energy requirement is covered by the electromagnetic interrogation signal stored by reception.
  • Such OF components which operate as passive transponders, can be used for various measurement purposes in temperature, pressure or acceleration measurement. They can also be used in identification systems for
  • the object of the invention is to provide a method and a device for wirelessly determining the position and / or position of one or more objects of the type mentioned in the introduction, in which the positioning and / or the position of objects which are also difficult to see and difficult to observe can be determined.
  • This task is performed in the process by the identifying
  • the radio-stored query signal is individually modulated and as a coded response signal, the time and / or phase position of which is evaluated when determining the position and / or position , sent back to the sending location of the query signal.
  • the time and / or phase position of the coded response signal is evaluated with respect to the time and / or phase position of the interrogation signal.
  • a determination is made of the distance between the object and the interrogation station from which the interrogation signal was sent.
  • several sensor elements in particular three sensor elements, can be provided on the object. Due to their different positioning on the object, the sensor elements have an interrogation station different distances. In the case of the coded response signals, this results in time or phase differences between the signals and different transit times between the interrogation station and the respective sensor elements.
  • the modulation in the respective sensor element can be based on different delays and / or frequency influences.
  • the sensor elements are preferably designed as SAW components with an ID tag function.
  • An evaluation device provided in the interrogation station recognizes, on account of the different modulation or coding of the response signals received, the respective sensor from which the response signal comes. As a result, the respectively measured value for the transit time or phase position can be assigned to the corresponding sensor element.
  • SAW resonators electrical and mechanical resonant circuits, such as, for example, quartz volume oscillators and LC resonant circuits.
  • An advantageous feature of the energy-storing sensor elements used is that the energy is stored in the element until environmental echoes of the interrogation signal (interrogation pulse) have decayed to such an extent that the response signals emitted by the sensor element can be relatively weak and yet be detected can.
  • the position and / or position of the object in space with respect to a reference location, in particular with respect to the interrogation station by means of the running time differences of the response signals which come from the sensor elements placed at different locations on the object.
  • the sensor elements have a fixed spatial relationship to the object, which is stored in the evaluation device.
  • the number of sensor elements used determines the free degrees in which the measurement can be carried out, as well as the measurement accuracy. If three sensor elements are arranged at different locations on the object, both the distance of the object from the interrogation station or from the reference location and the position of the object relative to this can be determined.
  • the invention achieves non-contact position and / or position determination of one or more objects with a passive sensor device.
  • the measuring arrangement has a simple structure, whereby no direct line of sight is required between the interrogation station and the object.
  • the invention can preferably be used in guideless transport systems, in the automatic positioning of objects, in the positioning of obscure or poorly observable objects and in the monitoring of plants and plant parts. It is also suitable for use in alarm systems, in systems to support the disabled and in safety and comfort systems for people.
  • Fig. 1 shows schematically the basic structure of an embodiment of the invention
  • FIG. 3 shows an embodiment for a sensor element and an interrogation station, which can be used in the invention.
  • three sensor elements 1, 2 and 3 are arranged on an object 7 at different locations on the object.
  • an interrogation station 14 with a transmission / reception antenna 15 belongs to the position and position determination system shown.
  • the interrogation station 14 also has a transmitter 12 and a receiver 13, which can be connected or connected to the transmission / reception antenna 15 (FIG. 3).
  • the interrogation station 14 can have an evaluation device 5, in which the transmitted and received signals are evaluated. Such an interrogation station is known.
  • the respective sensor elements 1 to 3 preferably consist of SAW components of a known embodiment.
  • each sensor element has an assigned receiving / transmitting antenna.
  • the sensor element 1 has the assigned antenna 9, the sensor element 2 the assigned antenna 10 and the sensor element 3 the assigned antenna 11.
  • Each of these receive / transmit antennas is connected to an interdigital transducer 8 on the respective sensor element ,
  • the interdigital transducer 8 generates an acoustic surface wave (SAW) in a piezoelectric substrate 16 of the SAW component, which is modulated in a modulation device 6.
  • the modulation device 6 can consist of different reflector structures or resonator structures formed by folding.
  • a modulation with regard to the delay and / or frequency of the surface acoustic wave signal is obtained in this way.
  • This modulated signal is converted back by the converter 8 into an electromagnetic HF response signal and sent back to the interrogation station 14 via the receive / transmit antenna of the respective sensor element.
  • the respective sensor elements 1 to 3 are thus from the interrogation station 14 with an interrogation signal, in particular with a pulsed RF interrogation signal, e.g. B. excited with 2.45 GHz.
  • the response signal coded by the modulation is with the respective from Sensor element caused time delay emitted by the respective assigned receive / transmit antennas 9, 10, 11 of the sensor elements and received via the receiving part 13 of the interrogation station 14.
  • the spatial arrangement of the receive / transmit antennas 9 to 11 assigned to the respective sensor elements 1 to 3 is permanently provided on the object 7 and stored in the evaluation device 5.
  • the different distances that these antennas 9 to 11 have as a function of the position and location of the object from the transmitting / receiving antenna 15 of the interrogation station 14 can be determined from the respective transit times and / or phase positions of the response signals. From the different transit times and phase positions as well as transit time differences between the individual response signals, the path differences between the individual antennas 9 to 11 to the antenna 15 of the interrogation station 14 and the distance and / or position of the object 7 with respect to the interrogation station or another can be determined via the speed of light Determine the reference location according to known trigonometric relationships. This is clear from Fig. 2. Since the system is invariant against rotation around the interrogation station, an additional direction finder or an additional antenna can be provided on the interrogation station 14, so that the direction in which the object 7 lies can also be determined.

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

La présente invention concerne un procédé et un dispositif permettant de déterminer par radio la position et/ou l'orientation d'au moins un objet (7). Selon cette invention, un signal d'interrogation électromagnétique est émis à partir d'une station d'interrogation (14) et des éléments de détection (1 à 3), qui se trouvent sur l'objet (7) et stockent de l'énergie, modulent de manière individuelle le signal d'interrogation enregistré par radio et le renvoient, sous forme de signaux de réponse codés, à la station d'interrogation (14), où la position et/ou l'orientation est/sont déterminée(s) à partir des intervalles de temps et/ou des phases de chaque signal de réponse.
EP01936009A 2000-05-18 2001-04-30 Procede et dispositif permettant de determiner par radio la position et/ou l'orientation d'au moins un objet Withdrawn EP1285284A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10024474 2000-05-18
DE10024474A DE10024474A1 (de) 2000-05-18 2000-05-18 Verfahren und Vorrichtung zur drahtlosen Positions- und/oder Lagebestimmung wenigstens eines Objektes
PCT/DE2001/001632 WO2001088563A1 (fr) 2000-05-18 2001-04-30 Procede et dispositif permettant de determiner par radio la position et/ou l'orientation d'au moins un objet

Publications (1)

Publication Number Publication Date
EP1285284A1 true EP1285284A1 (fr) 2003-02-26

Family

ID=7642598

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01936009A Withdrawn EP1285284A1 (fr) 2000-05-18 2001-04-30 Procede et dispositif permettant de determiner par radio la position et/ou l'orientation d'au moins un objet

Country Status (8)

Country Link
US (1) US20030144010A1 (fr)
EP (1) EP1285284A1 (fr)
JP (1) JP2003533704A (fr)
KR (1) KR20030013417A (fr)
CN (1) CN1429343A (fr)
CA (1) CA2408988A1 (fr)
DE (1) DE10024474A1 (fr)
WO (1) WO2001088563A1 (fr)

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DE102004047756B4 (de) * 2004-09-30 2012-03-01 BSH Bosch und Siemens Hausgeräte GmbH Temperatursensorvorrichtung
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US9054953B2 (en) * 2008-06-16 2015-06-09 Lg Electronics Inc. Home appliance and home appliance system
KR101442115B1 (ko) * 2009-04-10 2014-09-18 엘지전자 주식회사 가전기기 및 가전기기 시스템
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KR101416937B1 (ko) 2011-08-02 2014-08-06 엘지전자 주식회사 가전기기, 가전기기 진단시스템 및 동작방법
KR101252167B1 (ko) 2011-08-18 2013-04-05 엘지전자 주식회사 가전기기 진단장치 및 그 진단방법
KR101942781B1 (ko) 2012-07-03 2019-01-28 엘지전자 주식회사 가전기기 및 가전기기 진단을 위한 신호음 출력방법
KR20140007178A (ko) 2012-07-09 2014-01-17 엘지전자 주식회사 가전기기 및 그 시스템
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CN107831467B (zh) * 2017-10-10 2020-09-11 深圳数位传媒科技有限公司 节点定位方法、服务器、系统及计算机可读存储介质
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Also Published As

Publication number Publication date
US20030144010A1 (en) 2003-07-31
CA2408988A1 (fr) 2002-11-15
CN1429343A (zh) 2003-07-09
DE10024474A1 (de) 2001-11-29
JP2003533704A (ja) 2003-11-11
KR20030013417A (ko) 2003-02-14
WO2001088563A1 (fr) 2001-11-22

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