Rfid Tag for Train Wheels
First Claim
1. A monitoring system for a wheel and axle assembly of a rail vehicle on a railway comprising at least one tag comprising a carrier configured to be fitted on the wheel and axle assembly of the rail vehicle, the carrier carrying a radio frequency (RF) transponder comprising transponder circuitry, an antenna and a sensor for a parameter associated with the assembly in use connected to the circuitry and being responsive to cause the transponder to transmit a first RF signal when a value of the parameter exceeds a threshold value;
- at least one associated reader positioned alongside the railway, the system being configured such that the first signal is received by the at least one reader alongside the railway.
1 Assignment
0 Petitions
Accused Products
Abstract
A tag 12.1 for a vehicle comprises collar 32 adapted to be fitted on an axle of the vehicle. The collar carries an RF transponder 20.1 comprising transponder circuitry and an antenna 40. The circuitry is connected to a sensor 44 for a parameter associated with the assembly in use. The circuitry is responsive to cause the transponder to transmit a first radio frequency signal when a value of the parameter exceeds a threshold value.
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Citations
12 Claims
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1. A monitoring system for a wheel and axle assembly of a rail vehicle on a railway comprising at least one tag comprising a carrier configured to be fitted on the wheel and axle assembly of the rail vehicle, the carrier carrying a radio frequency (RF) transponder comprising transponder circuitry, an antenna and a sensor for a parameter associated with the assembly in use connected to the circuitry and being responsive to cause the transponder to transmit a first RF signal when a value of the parameter exceeds a threshold value;
- at least one associated reader positioned alongside the railway, the system being configured such that the first signal is received by the at least one reader alongside the railway.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of monitoring a parameter associated with a wheel and axle assembly of a rail vehicle in use on a railway, the method comprising the steps of:
- utilizing a sensor connected to a radio frequency transponder to sense for a change in a parameter associated with the assembly in use; and
in response to the change, causing the transponder to transmit a first radio frequency signal to be received by an associated reader provided alongside the railway. - View Dependent Claims (12)
- utilizing a sensor connected to a radio frequency transponder to sense for a change in a parameter associated with the assembly in use; and
Specification