Fleet tracking method using unicast and multicast communication
First Claim
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1. A method of tracking a fleet of machines, comprising:
- repetitively receiving at a central controller an unacknowledged message from communicating devices onboard the fleet of machines that includes a current location of each of the fleet of machines determined by locating devices onboard the fleet of machines;
updating a location listing of the fleet of machines with the current location; and
repetitively multicasting the location listing to the communicating devices at a first frequency greater than a second frequency at which the unacknowledged message is repetitively received, wherein repetitively receiving the unacknowledged message includes repetitively receiving the unacknowledged message at a frequency that increases with a decreasing distance of the associated machine to another machine of the fleet of machines.
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Abstract
A method of tracking a fleet of machines operating at a common worksite is disclosed. The method may include receiving at a central controller an unacknowledged message from communicating devices onboard the fleet of machines, the unacknowledged message including a current location of each of the fleet of machines determined by locating devices onboard the fleet of machines. The method may also include updating a location listing of the fleet of machines with the current location, and repetitively multicasting the location listing to the communicating devices.
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Citations
15 Claims
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1. A method of tracking a fleet of machines, comprising:
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repetitively receiving at a central controller an unacknowledged message from communicating devices onboard the fleet of machines that includes a current location of each of the fleet of machines determined by locating devices onboard the fleet of machines; updating a location listing of the fleet of machines with the current location; and repetitively multicasting the location listing to the communicating devices at a first frequency greater than a second frequency at which the unacknowledged message is repetitively received, wherein repetitively receiving the unacknowledged message includes repetitively receiving the unacknowledged message at a frequency that increases with a decreasing distance of the associated machine to another machine of the fleet of machines. - View Dependent Claims (2, 3, 4, 5)
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6. A method of tracking a fleet of machines, comprising:
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repetitively receiving at a central controller and at a first frequency an unacknowledged message from communicating devices onboard the fleet of machines that includes a current location of each of the fleet of machines determined by locating devices onboard the fleet of machines; updating a location listing of the fleet of machines with the current location; and repetitively multicasting at a second frequency less than the first frequency the location listing to the communicating devices, wherein repetitively receiving the unacknowledged message includes; repetitively receiving the unacknowledged message at the second frequency when an associated machine of the fleet of machines is traveling at a speed less than a threshold speed; repetitively receiving the unacknowledged message at a frequency that increases with at least one of an increasing travel speed of the associated machine that is faster than the threshold speed and a decreasing distance of the associated machine to another machine of the fleet of machines.
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7. A method of tracking a fleet of machines, comprising:
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repetitively receiving at a central controller an unacknowledged message from communicating devices onboard the fleet of machines from different regions of a worksite, each of the messages including a current location of each of the fleet of machines determined by locating devices onboard the fleet of machines; updating a plurality of different location listings of the fleet of machines with the current location; and repetitively multicasting the plurality of different location listings to particular communicating devices based on co-location of the associated machines within particular regions of the worksite, wherein repetitively multicasting the location listing includes repetitively multicasting the location listing at a first frequency greater than a second frequency at which the unacknowledged message is repetitively received, and wherein repetitively receiving the unacknowledged message includes repetitively receiving the unacknowledged message at the second frequency when an associated machine of the fleet of machines is traveling at a speed less than a threshold speed, the second frequency increasing with an increasing travel speed of the associated machine that is faster than the threshold speed. - View Dependent Claims (8, 9)
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10. A method of tracking a fleet of machines, comprising:
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repetitively receiving at a central controller an unacknowledged message from communicating devices onboard the fleet of machines from different regions of a worksite, each of the messages including a current location of each of the fleet of machines determined by locating devices onboard the fleet of machines; updating a plurality of different location listings of the fleet of machines with the current location; and repetitively multicasting the plurality of different location listings to particular communicating devices based on co-location of the associated machines within particular regions of the worksite, wherein repetitively multicasting the location listing includes repetitively multicasting the location listing at a first frequency greater than a second frequency at which the unacknowledged message is repetitively received, and wherein repetitively receiving the unacknowledged message includes repetitively receiving the unacknowledged message at a frequency that increases with a decreasing distance of the associated machine to another machine of the fleet of machines.
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11. A method of tracking a fleet of machines, comprising:
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receiving at a central controller an unacknowledged message from communicating devices onboard the fleet of machines that includes a current location of each of the fleet of machines determined by locating devices onboard the fleet of machines; receiving at a central controller an unacknowledged message from communicating devices onboard the fleet of machines that includes a current location of each of the fleet of machines determined by locating devices onboard the fleet of machines; updating a location listing of the fleet of machines with the current location; repetitively multicasting the location listing to the communicating devices; and determining a long-term communication status for each machine based on comparison of an actual frequency of receiving the unacknowledged message for each machine and an expected frequency, wherein repetitively multicasting the location listing further includes repetitively multicasting the long-term communication status for each machine of the fleet of machines. - View Dependent Claims (12, 13, 14, 15)
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Specification