Automatic remote acquisition system for determining the configuration of an installation
First Claim
1. A method of manufacturing a transponder for assembly to a metal or electrically conductive structure distinct from the transponder;
- the transponder comprising an antenna and a resonant circuit having, when applied to the metal or electrically conductive structure, a resonance frequency equal to a nominal radio frequency;
the method comprising;
sizing the resonant circuit to achieve, when it is not applied to the metal or electrically conductive structure, a resonance frequency equal to said nominal radio frequency plus a frequency shift depending on a stray capacitance produced between the metal or electrically conductive structure and the transponder when the transponder is applied to the metal or electrically conductive structure;
wherein the antenna comprises a number of electrically conductive, substantially complete, turns which are wound in parallel to an antenna plane; and
wherein, the transponder is designed so that when the transponder is attached to an incision on the metal or electrically conductive structure at a point at which the antenna of the transponder is located on the metal or electrically conductive structure, the antenna plane is normally parallel to a wall of the metal or electrically conductive structure.
1 Assignment
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Accused Products
Abstract
There is described an automatic remote acquisition system for determining the configuration of an installation having a number of devices, which are divided into standard devices grouped by cabinets, and into non-standard devices, and are each defined by a respective number of elementary units. The remote acquisition system has a number of passive transponders, each associated with a respective elementary unit to memorize respective identification data of the elementary unit; a number of active transponders, each associated with a respective non-standard device to memorize at least the identification data of the respective number of elementary units; and, for the passive transponders, a number of control units, each mounted in a respective cabinet to acquire the identification data, memorized in the respective passive transponders, of the elementary units of the standard devices in the cabinet.
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Citations
10 Claims
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1. A method of manufacturing a transponder for assembly to a metal or electrically conductive structure distinct from the transponder;
- the transponder comprising an antenna and a resonant circuit having, when applied to the metal or electrically conductive structure, a resonance frequency equal to a nominal radio frequency;
the method comprising;sizing the resonant circuit to achieve, when it is not applied to the metal or electrically conductive structure, a resonance frequency equal to said nominal radio frequency plus a frequency shift depending on a stray capacitance produced between the metal or electrically conductive structure and the transponder when the transponder is applied to the metal or electrically conductive structure; wherein the antenna comprises a number of electrically conductive, substantially complete, turns which are wound in parallel to an antenna plane; and wherein, the transponder is designed so that when the transponder is attached to an incision on the metal or electrically conductive structure at a point at which the antenna of the transponder is located on the metal or electrically conductive structure, the antenna plane is normally parallel to a wall of the metal or electrically conductive structure. - View Dependent Claims (2, 3, 4)
- the transponder comprising an antenna and a resonant circuit having, when applied to the metal or electrically conductive structure, a resonance frequency equal to a nominal radio frequency;
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5. A method of manufacturing a transponder for application to a metal or electrically conductive structure and required to operate, when applied to the structure, at a nominal frequency (F1), the method comprising:
manufacturing the transponder to operate, when not applied to the structure, at a shifted frequency (F1+FS) which is shifted from the nominal frequency (F1) of a frequency shift (FS) which depends on a parasitic capacitance present between the structure and the transponder when the transponder is applied to the metal or electrically conductive structure, whereby, when applied to the metal or electrically conductive structure at an incision made in the metal or electrically conductive structure, the transponder operates at the required nominal frequency (F1). - View Dependent Claims (6, 7)
- 8. A transponder for application to a metal or electrically conductive structure and required to operate, when applied to the metal or electrically conductive structure, at a nominal frequency (F1), wherein the transponder is designed to operate, when not applied to the metal or electrically conductive structure, at a shifted frequency (F1+FS) which is shifted from the required nominal frequency (F1) of a frequency shift (FS) which depends on a parasitic capacitance which is present between the metal or electrically conductive structure and the transponder when the transponder is applied to the metal or electrically conductive structure, whereby when applied to the metal or electrically conductive structure, the transponder operates at the required nominal frequency (F1), when an incision is made on the metal or electrically conductive structure at a point at which the transponder is located on the metal or electrically conductive structure.
Specification