Article: Wireless wheel monitors

How wireless wheel monitors could identify railway track faults

Southeastern Railway has equipped its entire fleet with energy harvesting wireless sensors to predict wheel bearing failures. Now it wants to share the data generated by the technology with Network Rail to help it predict track faults.

Train wheel bearing failures used to be a big headache for Southeastern Railway’s engineering director Mark Johnson. The man who is responsible for the train operator’s entire rolling stock and some 550,000 passengers daily, used to dread a fault occurring while one of his trains was in service.

“Should it happen in the wrong place, a fault could wipe out the whole of the South East for 24 hours,”


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