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MCC Packet Data Radios, installed at Hotbox sites, interface to HotBox Detectors
and send detailed axle reports for each passing train to the back office within
seconds of the train passing. Transmitting the axle data to the back office in real-time
allows it to be processed as a train set and combined with data for the same train
from adjacent detectors. This allows warm bearing trends and wheel, truck and air
brake problems to be detected.
Processing of these axle reports allows early detection of warm journal and stuck
brake problems. Analyzing data from all detectors that the train passes allows failure
trends to be detected and the train to be stopped before a catastrophic failure.
Hotbox Detectors can operate as independent, standalone sites that detect individual
axle bearing temperatures above an absolute threshold, and can then notify the engineer
of a critical situation. The controller can also stop or slow the train before a
distant detector finds an individual bearing overheated and thus prevent a derailment
that might occur before the train reaches that detector.
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