System and method for determining at least one parameter of at least one rotating member by means of reference and speed signals
First Claim
1. A system for determining at least one parameter of at least one member (1) rotating with respect to a fixed structure (2), said system comprising, for each rotating member (1), an assembly comprising:
- a transponder (3) rotationally fixed to the rotating member (1), the transponder being able to measure the parameter or parameters to be determined;
a coder (5) rotationally fixed to the rotating member (1), the coder comprising a reference singularity whose angular position is indexed with respect to the angular position of the transponder (3) on the rotating member (1);
a sensor (6) fixed to the fixed structure (2), the sensor being disposed opposite to and at a reading distance from the coder (5), the sensor being able to deliver a rotation pulse signal comprising a reference pulse corresponding to the detection of the reference singularity;
a device (4) for detecting the parameter or parameters issuing from the transponder (3), the device being fixed to the fixed structure (2) and comprising a communication means able to send an excitation signal to the transponder (3) and to receive the measurement or measurements;
a device for measuring the speed of rotation of the rotating member (1);
said system also comprising;
an activation device (7) which is connected to each sensor (6), to each detection device (4) and to each speed measurement device, the activation device being able, when a reference pulse issuing from the sensor (6) of an assembly is recorded, to activate the assembly detection device (4) at a moment which is a function of the indexed position of the transponder (3) and of the measured speed, so that the transponder (3) of the assembly is in the transmission/reception cone of the communication means of the detection device.
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Accused Products
Abstract
The invention concerns a system for determining at least one parameter of at least one member (1) rotating with respect to a fixed structure (2), comprising, for each rotating member (1), an assembly comprising a transponder (3), a code (5) comprising a reference singularity, a sensor (6) able to deliver a signal comprising a reference pulse corresponding to the detection of the reference singularity, a device (4) for detecting the parameter or parameters issuing from the transponder (3) and a device for measuring the speed of rotation of the rotating member (1);
the said system also comprising an activation device (7) which is connected to each sensor (6), to each detection device (4) and to each speed measurement device, the said activation device being able, when a reference pulse issuing from the sensor (6) of an assembly is recorded, to activate the detection device (4) of the assembly at a moment which is a function of the indexed position of the transponder (3) and of the measured speed, so that the transponder (3) of the assembly is in the transmission/reception cone of the communication means of the said detection device.
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Citations
25 Claims
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1. A system for determining at least one parameter of at least one member (1) rotating with respect to a fixed structure (2), said system comprising, for each rotating member (1), an assembly comprising:
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a transponder (3) rotationally fixed to the rotating member (1), the transponder being able to measure the parameter or parameters to be determined;
a coder (5) rotationally fixed to the rotating member (1), the coder comprising a reference singularity whose angular position is indexed with respect to the angular position of the transponder (3) on the rotating member (1);
a sensor (6) fixed to the fixed structure (2), the sensor being disposed opposite to and at a reading distance from the coder (5), the sensor being able to deliver a rotation pulse signal comprising a reference pulse corresponding to the detection of the reference singularity;
a device (4) for detecting the parameter or parameters issuing from the transponder (3), the device being fixed to the fixed structure (2) and comprising a communication means able to send an excitation signal to the transponder (3) and to receive the measurement or measurements;
a device for measuring the speed of rotation of the rotating member (1);
said system also comprising;
an activation device (7) which is connected to each sensor (6), to each detection device (4) and to each speed measurement device, the activation device being able, when a reference pulse issuing from the sensor (6) of an assembly is recorded, to activate the assembly detection device (4) at a moment which is a function of the indexed position of the transponder (3) and of the measured speed, so that the transponder (3) of the assembly is in the transmission/reception cone of the communication means of the detection device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification