WO2018036707A1 - Système et procédé pour localiser un objet - Google Patents

Système et procédé pour localiser un objet Download PDF

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Publication number
WO2018036707A1
WO2018036707A1 PCT/EP2017/066875 EP2017066875W WO2018036707A1 WO 2018036707 A1 WO2018036707 A1 WO 2018036707A1 EP 2017066875 W EP2017066875 W EP 2017066875W WO 2018036707 A1 WO2018036707 A1 WO 2018036707A1
Authority
WO
WIPO (PCT)
Prior art keywords
mobile terminal
radio signal
processing unit
radio
signal
Prior art date
Application number
PCT/EP2017/066875
Other languages
German (de)
English (en)
Inventor
Andreas Kornbichler
Alejandro Ramirez
Oliver Zechlin
Original Assignee
Siemens Aktiengesellschaft
Siemens Schweiz 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 Aktiengesellschaft, Siemens Schweiz Ag filed Critical Siemens Aktiengesellschaft
Publication of WO2018036707A1 publication Critical patent/WO2018036707A1/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
    • 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
    • G01S5/14—Determining absolute distances from a plurality of spaced points of known location
    • 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
    • G01S5/0284—Relative positioning

Definitions

  • the present invention relates to a system for ⁇ ren localize an object. Furthermore, the present invention relates to a method ⁇ to locate an object. Moreover, the present invention relates to a Computerpro ⁇ program product, which causes the processing performing such a method in a program-controlled Einrich-.
  • the traceability and localization of mobile resources which can include both objects and persons, is of interest in many applications. For example, it is in buildings and / or installations desirable to keep track of which located in the building or facility mobile resources, and preferred to allow accurate Loka ⁇ capitalization. This usually requires a complex infrastructure and cooperative behavior of resources.
  • the RFID transponders can pre-connect a resistor digitally to change the power consumption and thus indirectly send signals received by the infrastructure. These signals contain information that identifies the object.
  • the infrastructure is distributed throughout the building, and its elements log into the backend software, passing on the information of the RFID transponders. Based on the local information of the fixed infrastructure, the backend software calculates the position of each RFID transponder. It may be necessary for all infrastructure elements with energy and with a ⁇ Since tentagen be supplied.
  • the system comprises a radio transmitter which is associated with an object and is adapted to transmit a radio signal, a mobile terminal that is to be ⁇ oriented to receive the radio signal from the radio transmitter, and a processing unit.
  • the mobile terminal is adapted to the received radio signal and a positi ⁇ on the mobile terminal to the processing unit to ⁇ means, and the processing unit is adapted to a position of the object based on the received radio signal and the position of the mobile terminal to determine.
  • the respective unit for example a processing unit, can be implemented in terms of hardware and / or software.
  • the respective technical unit can be configured as a device or as part ei ⁇ ner device such as a computer or a microprocessor.
  • the respective unit can be used as a computer program product, as a function, as a routine, as part of a program code or as an executable object.
  • the proposed system does not use fixed, ie. H. Fixed infrastructure, but instead uses mobile devices, which are located in the same area as the object to be located.
  • the same area can be understood in this context to be a localized area such as a building or an industrial facility.
  • an application can be installed on the mobile terminals, which is set up to receive radio signals from radio transmitters and forward them to a processing unit.
  • the mobile terminal can also transmit its own position to the processing unit.
  • the system may comprise a plurality of mobile terminals and a plurality of OBJEK ⁇ te associated with radio transmitters.
  • the location of a radio transmitter by means of a plurality of terminals can be performed, each of which receives a corresponding Funksig ⁇ nal.
  • each mobile terminal can receive and forward the radio signals from a plurality of radio transmitters, whereby a simultaneous localization of a plurality of radio transmitters and their associated objects is possible.
  • the radio transmitter which may be an RFID tag, for example, may be attached directly to the object or at least connected to the object.
  • a mobile terminal can be understood as meaning mobile devices such as mobile phones (eg smartphones), tablet computers and personal digital assistants (PDAs), but also notebooks or subnotebooks.
  • the mobile terminal may receive a radio signal from the radio transmitter, for example in the form of a Bluetooth signal.
  • the processing unit can then be based on the transmitted radio signal of the radio transmitter and the current move the position of the mobile terminal to draw conclusions about the position of the object.
  • the processing ⁇ unit may determine the position of the object by using various algorithms, such as within a building or a plant.
  • the processing unit may provide the determined position data to other devices.
  • Such devices may be used, for example, for navigating the object, for tracking, d. H. Tracking, the object, for the inventory, for the statistical evaluation, z. For example, if the object is in a building and the building maps are not known, they can be created and refined using the system.
  • the system can be used as a visitor location system. Visitors to a building or facility receive a visitor's wristband with integrated radio transmitter at the reception.
  • the gesende ⁇ th radio signal is detected from the mobile terminals and other communication terminals, optional of IT infrastructure, and by means of their own position than the position of the visitor in a local or online available software or database would be stored. This allows a movement profile to be called up by an authorized user (eg security service). If, on the basis of the recognition, a departure from the permitted path is shown, the guest can be informed and the security service can be sent to the place of deployment.
  • an authorized user eg security service
  • an employee can be sent to the last known position.
  • the processing unit may be provided as a central cookedsein ⁇ uniform, or the data can be distributed ad-hoc, so that each mobile terminal expects ⁇ be the position itself. In the second case, each mobile terminal used represents a processing unit.
  • the mobile terminal can transmit further sensor data, such as acceleration or rotation rate information from an inertial measurement unit (IMU), to the processing unit. This information can further improve localization.
  • IMU inertial measurement unit
  • the mobile terminal and the processing unit are adapted to communicate via a radio link ⁇ dung.
  • the radio connection can be set up as a mobile or another telecommunications service.
  • the mobile terminal and the processing unit may also communicate via WLAN or other radio links.
  • the radio signal contains information about the identity of the radio transmitter.
  • the identity of the radio transmitter can indicate the assigned object. Furthermore, it is thus possible to locate several radio transmitters and their associated objects, since these can be distinguished on the basis of their identity.
  • the mobile terminal is adapted to transmit with the position information about the identity of the mobile terminal. In this way, the processing unit can determine whether the same mobile terminal repeatedly transmits the radio signal of a radio transmitter or whether several different mobile terminals transmit the same radio signal.
  • the mobile terminal is adapted to transmit with the radio signal information about the signal strength of the received radio signal.
  • the removal of the radio transmitter to the mobile terminal can be concluded.
  • an area around the mobile terminal can be determined around ⁇ , in which the radio transmitter can be located. This area may be defined as a perimeter at a certain distance around the mobile terminal.
  • the processing unit adapted to determine the position of the object based on the signal strength of the radio signal and the position of the mo ⁇ bilen terminal.
  • the location of the mobile terminal in combination with the signal strength may determine an area within a building or facility in which the radio transmitter is located.
  • the system has at least one further mobile terminal which is set up to receive the radio signal from the radio transmitter and to transmit the received radio signal and a position of the at least one further mobile terminal to the processing unit, the processing unit being set up for this purpose is, a position of the object based on the received radio signal, the position of the mobile terminal and the Posi ⁇ tion of at least one other mobile terminal to be ⁇ vote.
  • the system can be extended by any number of mobile devices.
  • the radio transmitter when the radio transmitter is moving, it is advantageous to pass when a plurality of mobile terminals at the same time the radio signal are received, ⁇ gene and to the processing unit.
  • This can determine the position of the radio transmitter based on this information, ie the positions of the plurality of terminals and the respective received radio signal, in particular based on the signal strength. Moves this in the following, the position of the radio transmitter can be determined on the positi ⁇ ones of the plurality of terminals and the respectively received radio signal, in particular based on the signal strength again based.
  • the processing unit is adapted to determine the position of the object by means of a lateration. At the lateration or trilateration, depending on the number of
  • Terminal devices also multilateration, the position of the radio transmitter is determined as a distance or distance measurement to several points.
  • the trilateration involves three points or terminal devices, while multilateration involves any number of end devices.
  • the position of the radio transmitter when viewed flatly , lies on a circle, in 3D space on a spherical shell, around this terminal.
  • the positions of two terminal device ⁇ th known that receive the radio signal from the radio transmitter the location of the radio transmitter on the intersections of the two spherical shells, so on a circle.
  • the mobile terminal and / or the at least one other mobile terminal to be a ⁇ directed receive the radio signal over a certain period and to transmit to the processing unit.
  • the object moves and thus, the radio transmitter, the mobile terminals can receive the radio signal over a certain time ⁇ space of time.
  • the processing unit can then perform a position determination over this period of time.
  • the processing unit is configured to determine the position based on a time profile of the radio signal. If the processing unit only receives the radio signal from a mobile terminal device , the processing unit can determine a chronological progression, eg. B. a temporal course of the signal strength of the radio signal in determining the position be ⁇ consider. Using this time profile of a movement of the radio transmitter and the Ob ⁇ jekts can play as examples to be determined.
  • a chronological progression eg. B. a temporal course of the signal strength of the radio signal in determining the position be ⁇ consider.
  • the processing unit has a filter which is set up to filter out certain positions which are outside a possible range.
  • the processing unit may determine positions for the radio transmitter that are outside a possible range, for example, outside a building. These theoretically possible positions can be filtered out by the filter as virtually impossible positions. Furthermore, a method for locating an object is proposed. The method has the following
  • a computer program product which causes the execution of the method as explained above on a program-controlled device.
  • a computer program product such.
  • a computer program means, for example, as a storage medium such.
  • FIG. 1 shows a schematic block diagram of a system for locating an object
  • Fig. 2 shows a schematic block diagram of an off ⁇ -section of the system of Fig.l;
  • FIG. 3 is a schematic flow diagram of a method for locating an object
  • Fig. 4 is a schematic view of a portion of an object located by a mobile terminal.
  • Fig. 5 shows a schematic view of a portion of an object located by two mobile terminals.
  • the same or functionally identical elements have been given the same reference numerals, unless stated otherwise.
  • FIG. 1 shows a system 100 for locating an object 10.
  • the object 10 is equipped with a radio transmitter 1.
  • An object 10 is provided in the system 100, but other objects 10 with associated radio transmitters 1 may be present.
  • Mobile terminals 2, 3 can receive a radio signal from the radio transmitter 1. This radio signal is then transmitted to ⁇ together with the respective position of the respective mobile terminal 2, 3 to a processing unit. 4
  • the processing unit 4 determines a position of the object 10 based on the received radio signal and the position of the mobile terminal 2, 3. This will be explained in more detail below with reference to examples.
  • the object 10, and thus the radio transmitter 1, can move, for example, in a building. This is shown in Fig. 2 by the radio transmitter 1, which, as shown by the arrows, moves. At the times Tl to T3, the radio transmitter 1 moves.
  • the mobile terminal 2 moves in an arc around the radio transmitter 1, being at different positions on this sheet at the times Tl to T4.
  • the mobile terminal 2 may, during its own movement, receive the radio signal from the radio transmitter 1 at the various times and forward it to the processing unit 4 together with its own position. Based on this information, the processing unit 4 can determine at least one changing radius around the mobile terminal 2 on which the radio transmitter is located.
  • the localization of the object 10 takes place according to the method shown in Fig. 3.
  • a radio signal is transmitted by the radio transmitter ⁇ . 1
  • the radio signal is received by the mobile terminal 2.
  • step 303 the received radio signal and the positi ⁇ on the mobile terminal 2 is transmitted to the processing unit. 4
  • step 304 the position of the object 10 is determined based on the received radio signal and the position of the mobile terminal 2.
  • the steps 301 to 304 can be repeated. In Fig. 2 this happens, for example, at the times Tl to T4.
  • a circle around the mobile terminal 2 can be determined for example by means lateration, on which the Whether ⁇ ject 10 is located. This is shown in FIG. 4.
  • the distance D of the circle depends on the signal strength of the received radio signal. If the signal is strong, the distance D is small. If the signal is weaker, the distance D is greater.
  • the radio signal is also received by the Endge ⁇ advises. 3
  • a circle around the mobile terminal 3 can then also be determined, on which the object 10 can be located. Again, the distance D of the circle depends on the signal strength of the received radio signal.

Landscapes

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

Abstract

L'invention concerne un système permettant de localiser un objet. Ledit système présente un émetteur radio qui est associé à un objet et est conçu de manière à émettre un signal radio, un terminal mobile qui est conçu de manière à recevoir le signal radio émis par l'émetteur radio ainsi qu'une unité de traitement. Le terminal mobile est conçu de manière à transmettre à l'unité de traitement le signal radio reçu et une position du terminal mobile, et l'unité de traitement est conçue de manière à déterminer une position de l'objet sur la base du signal radio reçu et de la position du terminal mobile. L'invention concerne également un procédé permettant de localiser un objet. Le système et le procédé selon l'invention permettent de déterminer la position de différents objets, au moyen de terminaux mobiles qui se déplacent dans un bâtiment ou une installation. A cette fin, lesdits objets sont équipés d'émetteurs radio.
PCT/EP2017/066875 2016-08-26 2017-07-06 Système et procédé pour localiser un objet WO2018036707A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102016216078 2016-08-26
DE102016216078.8 2016-08-26
DE102016218759 2016-09-28
DE102016218759.7 2016-09-28

Publications (1)

Publication Number Publication Date
WO2018036707A1 true WO2018036707A1 (fr) 2018-03-01

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Application Number Title Priority Date Filing Date
PCT/EP2017/066875 WO2018036707A1 (fr) 2016-08-26 2017-07-06 Système et procédé pour localiser un objet

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112399341A (zh) * 2020-12-01 2021-02-23 中国联合网络通信集团有限公司 定位系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10222140A1 (de) * 2002-05-17 2003-11-27 Siemens Ag Verfahren und Vorrichtung zur Positionsbestimmung in einem Mobilfunksystem
US20130281110A1 (en) * 2012-04-18 2013-10-24 Google Inc. Using peer devices to locate a mobile device
US20140243025A1 (en) * 2011-09-22 2014-08-28 Sensewhere Limited Positioning method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10222140A1 (de) * 2002-05-17 2003-11-27 Siemens Ag Verfahren und Vorrichtung zur Positionsbestimmung in einem Mobilfunksystem
US20140243025A1 (en) * 2011-09-22 2014-08-28 Sensewhere Limited Positioning method
US20130281110A1 (en) * 2012-04-18 2013-10-24 Google Inc. Using peer devices to locate a mobile device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112399341A (zh) * 2020-12-01 2021-02-23 中国联合网络通信集团有限公司 定位系统

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