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Determining a position by means of rfid tags

A technology for positioning signals and spatial positions, applied in positioning, measuring devices, reflection/re-radiation of radio waves, etc., can solve the problem of insufficient accuracy in determining the position, and achieve the effect of increasing sensitivity and accuracy

Inactive Publication Date: 2013-07-10
阿梅多智能追踪解决方案有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since it is not possible, or at least not sufficiently possible, to separate the interrogation signal of the transmitting device from the locating signal of the transponder, it is not possible to achieve sufficient accuracy in determining the position

Method used

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  • Determining a position by means of rfid tags
  • Determining a position by means of rfid tags
  • Determining a position by means of rfid tags

Examples

Experimental program
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Embodiment Construction

[0030] in the attached figure 1 The system schematically shown in is used to determine the spatial position and orientation of a medical instrument 1 , such as a biopsy needle. Transponders 2 and 2' in the form of conventional passive RFID tags are placed at the medical instrument 1 as markers for position determination. The system comprises a transmitting device 3, which is also a conventional reading device for RFID tags 2, 2'. The transmitting device 3 transmits an inquiry signal via the antenna 4 . The transponders 2 and 2' receive the electromagnetic radiation of the interrogation signal. To this end, the transponders 2 and 2' are equipped with antennas (not shown), in which induced currents are generated as soon as they are located in the electromagnetic field of the transmitting device 3, which activate the transponders 2 and 2'. The transponders 2 and 2' thus activated generate a positioning signal, here again in the form of electromagnetic radiation, in respon...

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PUM

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Abstract

The invention relates to a method for determining the spatial potion and / or orientation of an object (1) marked by means of at least one transponder (2, 2'), wherein the transponder (2, 2') receives a query signal emitted by a transmitting device (3) and is excited thereby in order to emit a locating signal, wherein the locating signal is received by means of at least one receiving device (5) and is analyzed by means of an evaluating device (7) in order to determine the position. The aim of the invention is to provide a method that is improved in regard to the practicability and above all in regard to the precision in determining a position. For this purpose, the transmitting device (3) emits the query signal intermittently according to the invention, wherein the receiving device (5) receives at least the locating signal emitted by the transponder (2, 2') during the transmission pauses of the transmitting device (3) and the evaluating device (7) determines the position therefrom. The invention further relates to a system for carrying out the method.

Description

technical field [0001] The invention relates to a method for determining the spatial position and / or orientation of an object which is marked by at least one transponder, wherein the transponder receives an interrogation signal transmitted by a transmitting device and is thereby activated to transmit positioning signals. In this case, the localization signal is received by at least one receiving device and analyzed by an evaluation device to determine the position. The invention also relates to a system for determining a position, said system comprising at least one transponder attachable to an object and comprising a transmitting unit for transmitting an interrogation signal receivable by the transponder, located at different locations for A plurality of receiving devices receive the positioning signals transmitted by the transponder, and an evaluation device for analyzing the received positioning signals. Background technique [0002] In medicine, for example, the precis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/76G01S5/02
CPCG01S5/0247G01S13/765G06K7/10297
Inventor V·特勒斯肯L·哈泽瑙
Owner 阿梅多智能追踪解决方案有限责任公司