SYSTEM FOR COMMUNICATING BETWEEN A TRAILER TRACKING DEVICE, A TRUCK TRACKING DEVICE, AND A CENTRAL MONITORING STATION
First Claim
1. A method for communicating information between a trailer tracking device attached to a cargo trailer, one or more truck tracking devices attached to one or more trucks that are operable to haul the cargo trailer, a server computer of a service provider, and a customer device, the method comprising:
- (a) at least some components of the trailer tracking device operating in a low-power mode to minimize power consumption when the cargo trailer is not coupled to any of the one or more trucks;
(b) detecting that the cargo trailer has become coupled to one of the one or more trucks;
(c) caused by the occurrence of step (b);
(c1) the trailer tracking device accessing a unique identifier of a truck tracking device attached to the truck to which the cargo trailer is coupled;
or(c2) the truck tracking device accessing a unique identifier of the trailer tracking device;
(d) one or both of the trailer tracking device and the truck tracking device wirelessly transmitting a first data message containing at least the unique identifier of the truck tracking device and the unique identifier of the trailer tracking device;
(e) receiving at the server computer at least the unique identifier of the truck tracking device and the unique identifier of the trailer tracking device contained in the first data message; and
(f) associating the unique identifier of the truck tracking device with the unique identifier of the trailer tracking device in a database accessible to the server computer.
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Accused Products
Abstract
When a cargo trailer is coupled to a truck, a trailer tracking device on the trailer acquires an identifier of a truck tracking device attached to the truck. The trailer tracking device then transmits a message to a central server indicating that the trailer is coupled to the truck, which message includes the identifiers of the two tracking devices. The central server associates the identifiers of the two tracking devices in a database. When the trailer is decoupled from the truck, the trailer tracking device transmits a message to the central server indicating that the trailer is decoupled. The trailer tracking device then goes into a sleep mode until the trailer is again coupled to a truck, a predetermined time interval expires, a motion sensor indicates trailer movement, location coordinates indicate a geofence violation, or a low battery voltage condition occurs. Upon any of these events, the trailer tracking device wakes up and transmits to the central server a message indicating which situation caused the transmission and including the location coordinates of the trailer.
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Citations
20 Claims
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1. A method for communicating information between a trailer tracking device attached to a cargo trailer, one or more truck tracking devices attached to one or more trucks that are operable to haul the cargo trailer, a server computer of a service provider, and a customer device, the method comprising:
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(a) at least some components of the trailer tracking device operating in a low-power mode to minimize power consumption when the cargo trailer is not coupled to any of the one or more trucks; (b) detecting that the cargo trailer has become coupled to one of the one or more trucks; (c) caused by the occurrence of step (b); (c1) the trailer tracking device accessing a unique identifier of a truck tracking device attached to the truck to which the cargo trailer is coupled;
or(c2) the truck tracking device accessing a unique identifier of the trailer tracking device; (d) one or both of the trailer tracking device and the truck tracking device wirelessly transmitting a first data message containing at least the unique identifier of the truck tracking device and the unique identifier of the trailer tracking device; (e) receiving at the server computer at least the unique identifier of the truck tracking device and the unique identifier of the trailer tracking device contained in the first data message; and (f) associating the unique identifier of the truck tracking device with the unique identifier of the trailer tracking device in a database accessible to the server computer. - 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 communicating information between a trailer tracking device attached to a cargo trailer, one or more truck tracking devices attached to one or more trucks that are operable to haul the cargo trailer, a server computer of a service provider, and a customer device, the method comprising:
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(a) at least some components of the trailer tracking device operating in a low-power mode to minimize power consumption when the cargo trailer is not coupled to any of the one or more trucks; (b) detecting that the cargo trailer has become coupled to one of the one or more trucks; (c) caused by the occurrence of step (b); (c1) the trailer tracking device accessing a unique identifier of a truck tracking device attached to the truck to which the cargo trailer is coupled;
or(c2) the truck tracking device accessing a unique identifier of the trailer tracking device; (d) one or both of the trailer tracking device and the truck tracking device wirelessly transmitting a first data message containing at least the unique identifier of the truck tracking device, the unique identifier of the trailer tracking device, location coordinates of the trailer tracking device, and information indicating that the cargo trailer has changed from a decoupled state to a coupled state; (e) receiving at the server computer at least the unique identifier of the truck tracking device and the unique identifier of the trailer tracking device contained in the first data message; (f) associating the unique identifier of the truck tracking device with the unique identifier of the trailer tracking device in a database accessible to the server computer; (g) the server computer providing information to the customer device indicating that the cargo trailer has been coupled to the truck to which the truck tracking device is attached, the information provided to the customer device via one or more of a webpage, an email message, a text message, and an instant message; (h) after step (d), detecting that the cargo trailer has become decoupled from the truck; (i) caused by the occurrence of step (h), one or both of the trailer tracking device and the truck tracking device transmitting a second data message containing at least the unique identifier of the trailer tracking device and information indicating that the cargo trailer has become decoupled from the truck; (j) after step (i), at least some components of the trailer tracking device going into a low-power mode; (k) receiving at the server computer the unique identifier of the trailer tracking device and the information indicating that the cargo trailer has become decoupled from the truck; (l) disassociating the unique identifier of the truck tracking device from the unique identifier of the trailer tracking device in the database; and (m) the server computer sending information to the customer device indicating that the cargo trailer has become decoupled from the truck. - View Dependent Claims (18, 19, 20)
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Specification