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Method and apparatus for warning of potential harm to an underground utility conveyance
Method and apparatus for warning of potential harm to an underground utility conveyance
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机译:警告地下设施运输工具潜在危害的方法和设备
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摘要
Potential harm to an underground utility conveyance (12), resulting from excavation by a backhoe (14) in the vicinity of the conveyance, is sensed by a sensor (32, 40, 42 or 44) that detects a disturbance attributable to the presence of the backhoe. In response to the sensor detecting such a disturbance, a control unit (34) triggers a warning device (36, 38) to generate a warning to alert the backhoe operator of the presence of the underground utility conveyance (12).
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