GPS tracker
First Claim
1. A vehicle tracking system comprising:
- a plurality of trackers each adapted to be attached to a respective movable vehicle, and remotely located control means for individually polling by radio each one of the trackers to determine the position of the polled tracker, each tracker comprising a positioning receiver for receiving satellite signals from a Global Positioning System and transmitting a first positioning signal containing the position of the tracker;
a first micro controller unit connected to the positioning receiver for receiving the first positioning signal and transmitting a second positioning signal containing the position of the tracker; and
communication means connected to the first micro controller unit for receiving the second positioning signal and, in response to a radioed polling signal from the remotely located control means, radioing the second positioning signal to the control means to communicate the position of the tracker.
1 Assignment
0 Petitions
Accused Products
Abstract
A vehicle tracking system that includes a plurality of trackers, each adapted to be attached to a respective movable vehicle, and a remotely located controller for individually polling by radio each of the trackers to determine the position of the polled tracker. Each tracker includes a positioning receiver which receives satellite signals from a Global Positioning System and transmits a first positioning signal containing the position of the tracker to a micro controller unit. The micro controller unit receives the signal and transmits a second positioning signal containing the position of the tracker to a communicator. The communicator radios the second positioning signal to the remotely located controller to communicate the position of the tracker in response to a radioed polling signal from the remotely located controller.
-
Citations
19 Claims
-
1. A vehicle tracking system comprising:
-
a plurality of trackers each adapted to be attached to a respective movable vehicle, and remotely located control means for individually polling by radio each one of the trackers to determine the position of the polled tracker, each tracker comprising a positioning receiver for receiving satellite signals from a Global Positioning System and transmitting a first positioning signal containing the position of the tracker;
a first micro controller unit connected to the positioning receiver for receiving the first positioning signal and transmitting a second positioning signal containing the position of the tracker; and
communication means connected to the first micro controller unit for receiving the second positioning signal and, in response to a radioed polling signal from the remotely located control means, radioing the second positioning signal to the control means to communicate the position of the tracker. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A vehicle tracker for communicating the position of the vehicle to a remotely located control means comprising:
-
a positioning receiver adapted to be attached to the vehicle for receiving satellite signals from a Global Positioning System and transmitting a first positioning signal containing the position of the tracker, a first micro controller unit connected to the positioning receiver for receiving the first positioning signal and transmitting a second positioning signal containing the position of the tracker and communication means connected to the first micro controller unit for receiving the second positioning signal and, responsive to a radioed polling signal from the remotely located control means, radioing the second positioning signal to the control means to communicate the position of the tracker. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
-
-
19. A method of tracking moving vehicles comprising the steps of:
-
attaching a plurality of trackers to respective movable vehicles, in each tracker, receiving at a positioning receiver satellite signals from a Global Positioning System, transmitting a first positioning signal containing the position of the tracker from the positioning receiver to a micro controller unit, receiving at the micro controller unit the first positioning signal, transmitting a second positioning signal containing the position of the tracker from the micro controller unit, receiving the second positioning signal, and responsive to a polling signal from a remotely located control means, radioing the second positioning signal to the control means to communicate the position of the tracker.
-
Specification