| 摘要 |
<p>A personnel warning system producing a signal when sensing the presence of a train for use by railroad workers including the steps of providing a train detection device having at least one magnet thereon, attaching such train detection device quickly and easily to the train track in the work area where maintenance is to be performed, providing each of the workers with a personal alert receiver for receiving such signals for warning to the workers of an oncoming train, quickly detaching such train detection device when desired and repeating the steps of attaching, and detaching such train detection device when moving the train detection device to subsequent work areas. Also disclosed is a train detection device having at least one magnet disposed on a side thereof.</p> |
