| 摘要 |
A service unit for providing a convenience service to a cab of a tractor trailer includes a supply panel which is operable to attach to a cab of a tractor trailer. The supply panel provides conditioned air to the cab. A vibration detection unit is configured to interact with the supply panel and detect an idling engine by detecting a vibration with a vibration detector, transmitting the vibration as vibration signals to a controller, performing a signal analysis on the vibration signals to identify an engine idle signature, and storing a duration of the engine idle signature.
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