Tractor-trailer tether sensor
First Claim
1. A tether sensor device for monitoring connection status between a first vehicle portion and a second vehicle portion, the tether sensor device comprising:
- (a) a first coupler linked to the first vehicle portion;
(b) a second coupler linked to the second vehicle portion; and
wherein in a connected position the second coupler is attached to the first coupler to provide an air line for operation of a braking mechanism for the second vehicle portion; and
wherein in the connected position the couplers provide an electrically conductive connection.
6 Assignments
0 Petitions
Accused Products
Abstract
An apparatus, system and method for monitoring and reporting the tethered/untethered status of a mobile asset are described. An asset tracking device comprises a sensor and circuit that detects whether a physical connection exists between a tractor portion and a trailer portion of a tractor/trailer vehicle. The physical connection is detected through the connection of an air hose coupling (or glad hand) at the trailer front wall. The sensor is continuously monitored by the sensor circuit and when a change is detected, the circuit sends a signal that turns on the power to the rest of the system. This enables the system to run in a very low power mode for extended periods of time. The sensor, which is located on the air hose (glad hand) coupling, senses the presence (or non-presence) of a tractor attached to the trailer and sends a trigger signal to turn on the power to the rest of the system, enabling the system to operate for extended periods of time on battery power. The asset tracking device and system also includes a processor, a location determining device for determining the geographic location of the mobile asset, and a transceiver for transmitting and receiving the tethered/untethered status of the mobile asset.
28 Citations
20 Claims
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1. A tether sensor device for monitoring connection status between a first vehicle portion and a second vehicle portion, the tether sensor device comprising:
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(a) a first coupler linked to the first vehicle portion; (b) a second coupler linked to the second vehicle portion; and wherein in a connected position the second coupler is attached to the first coupler to provide an air line for operation of a braking mechanism for the second vehicle portion; and wherein in the connected position the couplers provide an electrically conductive connection. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for monitoring connection status between a first vehicle portion and a second vehicle portion, the method comprising:
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(a) linking a first coupler to the first vehicle portion and to an electrically conductive bracket; (b) linking a second coupler to the second vehicle portion and to a sensor wire; (c) affixing the bracket to the second coupler where the bracket electrically connects the sensor wire to an electrical signal in a first position and electrically disconnects the sensor wire from the electrical signal in a second position; (d) taking an electrical status reading of the sensor wire; and (e) monitoring the sensor wire for any change to the reading. - View Dependent Claims (18, 19, 20)
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Specification