Device and method for analysing radio-frequency systems
First Claim
1. A method for analyzing radio-frequency systems including a radio-frequency tag and a reader for reading wirelessly information content of the radio-frequency tag, which method comprises the following steps:
- (a) creating a first excitation signal in the vicinity of the radio-frequency tag,(b) measuring the analog response of the radio-frequency tag caused by the first excitation signal, and(c) measuring the analog properties produced by a second excitation signal produced by the reader,wherein the steps (a), (b), and (c) are performed using a single device and the method comprises an additional step of;
(d) comparing the analog properties of the second excitation signal with the analog response of the radio-frequency tag, in order to evaluate the compatibility of the reader and the radio-frequency tag.
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Abstract
The invention relates to a device for analysing radio-frequency systems. Such a device comprises means for detecting radio-frequency electromagnetic signals, and means for determining at least one analog property of the radio-frequency signal received form the reader. According to the invention, the device further comprises means for producing an electromagnetic excitation signal in order to excite the radio-frequency tag, and means for determining at least one analog property of the return signal received from the radio-frequency tag. The device permits the effective analysis of RFID systems, for example, in system-installation and error-searching situations.
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Citations
15 Claims
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1. A method for analyzing radio-frequency systems including a radio-frequency tag and a reader for reading wirelessly information content of the radio-frequency tag, which method comprises the following steps:
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(a) creating a first excitation signal in the vicinity of the radio-frequency tag, (b) measuring the analog response of the radio-frequency tag caused by the first excitation signal, and (c) measuring the analog properties produced by a second excitation signal produced by the reader, wherein the steps (a), (b), and (c) are performed using a single device and the method comprises an additional step of; (d) comparing the analog properties of the second excitation signal with the analog response of the radio-frequency tag, in order to evaluate the compatibility of the reader and the radio-frequency tag. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A device configured to analyze radio-frequency systems including a radio-frequency tag and a reader for reading wirelessly information content of the radio-frequency tag, the device comprising:
a controller configured to (a) create a first excitation signal in the vicinity of the radio-frequency tag, (b) measure the analog response of the radio-frequency tag caused by the first excitation signal, and (c) measure the analog properties produced by a second excitation signal produced by the reader, (d) compare the analog properties of the second excitation signal with the analog response of the radio-frequency tag, in order to evaluate the compatibility of the reader and the radio-frequency tag. - View Dependent Claims (10, 11, 12, 13, 14, 15)
Specification