Antenna system for satellite lock-on and method for operating the same
First Claim
1. A satellite signal control box, coupled with at least one antenna unit mounted on a vehicle through a driving system to drive the antenna unit to point at at least one of a plurality of satellites in the space, comprising:
- an operational interface unit generating a scan driving signal representative of a scan pattern and scan coordinates,a processor unit coupled to said operational interface unit to receive said scan driving signal therefrom and generating an activating signal responsive thereto,a driving control circuit coupled to said processor unit to receive said activating signal therefrom, said driving control unit being coupled to a driving unit, said driving control unit activating said driving unit to trigger an antenna unit to perform scan in the space in accordance with said scan pattern and scan coordinates,said antenna unit, simultaneously with said space scanning, capturing satellite signals from at least one of a plurality of satellites in the scanned space upon meeting said scan coordinates, said satellite signals including scan data, wherein said scan data includes peak values of the satellite signals strength.said processing unit being further coupled to said driving control circuit for analyzing the scan data to obtain satellite coordinates of said at least one satellite based on said peak values of said satellite signals strength in correspondence to said scan coordinates; and
a memory unit coupled to said processing unit for storing the satellite coordinates of said at least one satellite;
wherein said operational interface unit elects a target satellite to be locked on among said plurality thereof, and sends a lock-on signal to said processing unit,wherein, upon receiving said lock-on signal from said operational interface unit, the processing unit captures the satellite coordinates of said target satellite to be locked according to the lock-on signal;
wherein, upon capturing said satellite coordinate of said target satellite from said memory unit, the processing unit sends an antenna control signal to the driving control circuit according to said satellite coordinates being captured, and the driving control circuit triggers the driving unit to point the antenna unit at the target satellite.
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Abstract
An antenna system and a corresponding method for satellite lock-on applied to vehicles automatically lock on at least one satellite in the space by means of a lock-on signal. The technique features on a scan driving signal that initiates a space scan of the antenna system so as to obtain a scan data. According to peak values of the scan data, coordinates of a plurality of satellites in the space are realized and individually recorded. Then, after receiving a lock-on signal, the satellite coordinate of the satellite to be locked is retrieved so as to drive the antenna to point at the satellite to be locked.
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Citations
38 Claims
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1. A satellite signal control box, coupled with at least one antenna unit mounted on a vehicle through a driving system to drive the antenna unit to point at at least one of a plurality of satellites in the space, comprising:
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an operational interface unit generating a scan driving signal representative of a scan pattern and scan coordinates, a processor unit coupled to said operational interface unit to receive said scan driving signal therefrom and generating an activating signal responsive thereto, a driving control circuit coupled to said processor unit to receive said activating signal therefrom, said driving control unit being coupled to a driving unit, said driving control unit activating said driving unit to trigger an antenna unit to perform scan in the space in accordance with said scan pattern and scan coordinates, said antenna unit, simultaneously with said space scanning, capturing satellite signals from at least one of a plurality of satellites in the scanned space upon meeting said scan coordinates, said satellite signals including scan data, wherein said scan data includes peak values of the satellite signals strength. said processing unit being further coupled to said driving control circuit for analyzing the scan data to obtain satellite coordinates of said at least one satellite based on said peak values of said satellite signals strength in correspondence to said scan coordinates; and a memory unit coupled to said processing unit for storing the satellite coordinates of said at least one satellite; wherein said operational interface unit elects a target satellite to be locked on among said plurality thereof, and sends a lock-on signal to said processing unit, wherein, upon receiving said lock-on signal from said operational interface unit, the processing unit captures the satellite coordinates of said target satellite to be locked according to the lock-on signal; wherein, upon capturing said satellite coordinate of said target satellite from said memory unit, the processing unit sends an antenna control signal to the driving control circuit according to said satellite coordinates being captured, and the driving control circuit triggers the driving unit to point the antenna unit at the target satellite. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An antenna system, mounted on a vehicle for automatically locking on at least one of a plurality of satellites in the space according to a lock-on signal, comprising:
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an operational interface generating a scan drive signal representative of a scan pattern and scan coordinates; an antenna device; a driving system coupled with the antenna unit; a driving control circuit coupled with the driving unit and receiving said scan driving signal generated by said operational interface to drive the antenna unit for space scanning in accordance with said scan pattern and scan coordinates, wherein said antenna unit captures, during said space scanning, satellite signals from a plurality of satellites in the scanned space upon meeting said scan coordinates, said satellite signals include scan data, wherein said scan data includes peak values of the satellite signals strength; a processing unit coupled with the driving control circuit for analyzing the scan data to obtain individual satellite coordinates of the satellites based on said peak values of said satellite signals strength in correspondence to said scan coordinates; and a memory unit coupled with the processing unit for storing the satellite coordinates of the satellites; wherein, upon receiving a lock-on signal for a target satellite from said operational interface, the processing unit captures the respective satellite coordinate of said target satellite from said memory unit according to the lock-on signal;
wherein, according to the captured satellite coordinate of the target satellite, the processing unit transmits an antenna control signal to the driving control circuit, the driving control circuit, responsive to said antenna control signal, sends a driving signal to the driving unit to point the antenna unit at the target satellite. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A method for driving at least one antenna device to lock on at least one of a plurality of satellites in the space, comprising the steps of:
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(a) generating at an operational interface a scan driving signal representative of a scan pattern and scan coordinates, (b) receiving at an antenna unit said scan driving signal from said operational interface to start a space scanning in accordance with said scan pattern and scan coordinates; (c) capturing, at said antenna unit, satellite signals from the plurality of satellites in the scanned space upon meeting said scan coordinates, said satellite signals include a scan data, wherein said scan data includes peak values of said satellite signal strength; (d) analyzing, at a processing unit operationally coupled to said antenna unit, the obtained scan data to obtain individual satellite coordinates of the satellites based on said peak values of said satellite signals strength in correspondence to said scan coordinates, and recording the respective satellite coordinates of the satellites in a memory unit; (e) receiving at said processing unit a lock-on signal generated at said operational interface that defines one of the satellites to be locked as a target satellite, and retrieving from said memory unit the satellite coordinate of the target satellite in accordance with lock-on signal; (f) sending from said processing unit to a driving control unit an antenna control signal corresponding to the satellite coordinate of the target satellite; and (g) generating at a driving control unit a driving signal according to the antenna control signal to drive the antenna unit to point at the target satellite. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38)
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Specification