| 摘要 |
A rail-car status-indicating assembly is provided for mounting to the axles of railcars. A solenoid and a magnet are part of the assembly installe d each to one of a non-rotating structure and a rotating structure which co- rotates with the axle so that each time the solenoid enters the magnets field a current is induced. Preferably, a housing forms the rotating structure for protecting t he inductive components. A bearing and pendulum are mounted within the housing to form a non-rotating structure. Magnetically induced co-rotation is eliminated by mounting of the electrical components to an offset pivoted structure. One fo rm of low-power status device is light emitting diodes, electrically connected to the solenoid for repeated emission of light visible to oncoming motorists. Other embodiments include use of low power temperature sensors and the use of LEDs to transmit two or more status condition or via RF transceivers. Alternatively, the housing forms the non-rotating pendulum structure and the axle rotates a rotary member bearing one of either the solenoid or magnet.
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