CN114928416B - Automatic antenna inclination angle patrol optimization star search system and method - Google Patents
Automatic antenna inclination angle patrol optimization star search system and method Download PDFInfo
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- H04B17/309—Measuring or estimating channel quality parameters
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Abstract
The invention discloses an automatic patrolling optimization star searching system and method for an antenna inclination angle. Through the use of the electric tuning antenna unit, the main control unit, the FPGA unit and the power supply unit are combined at the same time, the main control unit judges the star searching quantity and the carrier-to-noise ratio value and confirms whether the current antenna inclination value of the electric tuning antenna unit is the optimal antenna inclination value, if so, a first control signal is generated to fix the antenna inclination value of the electric tuning antenna unit, and if not, a second control signal is generated to adjust the antenna inclination value of the electric tuning antenna unit, so that the star searching system with the antenna inclination angle automatically patrolling is realized, and the star searching performance of the star searching system is in a controllable state.
Description
Technical Field
The invention belongs to the technical field of satellite searching and satellite patrolling, and particularly relates to an automatic antenna inclination angle patrolling and satellite searching system and method.
Background
The communication antenna is divided into a fixed downtilt antenna and an electrically tunable antenna according to whether the electrical downtilt adjustment is supported. The electrical downtilt refers to the angle between the maximum radiation direction on the vertical radiation plane of the communication antenna and the normal of the antenna. The fixed downtilt antenna is an antenna with a fixed electrical downtilt, which is generated by carrying out amplitude and phase shaping on an antenna radiation unit array according to wireless coverage requirements. The electrically tunable antenna is characterized in that phase differences of different radiation units in the antenna array are changed through a phase shifting unit, so that different radiation main lobe downtilt states are generated, and the downtilt state of the electrically tunable antenna is usually within a certain adjustable angle range, namely the tilt angle value of the electrically tunable antenna is within a certain adjustable range.
The equipment in the time unification field needs to receive satellite signals as a time reference source, and the performance of the antenna satellite search is greatly influenced by factors such as geographic environment, position environment, inclination angles of the antenna and the satellite signals and the like. Most antennas installed on the equipment in the current time unification field are fixed downtilt antennas. When the satellite searching result of the installed fixed downtilt antenna is poor due to the influences of geographical environment and position environment changes, the satellite searching quality is expected to be improved by adjusting the downtilt angle, at the moment, the mechanical downtilt angle of the antenna can only be adjusted manually, the intelligent degree is low, and meanwhile, whether the downtilt angle of the antenna is the optimal value or not is in an uncontrollable state, so that the time-unifying field equipment is limited in use under different geographical environments and position environments, and particularly, the time-unifying field equipment is limited in use according to the requirements of multiple installation positions of customers. Therefore, the automatic optimization implementation research aiming at the downward inclination angle of the antenna has wide application prospect, and the future development trend of the industry is to enable the antenna star searching performance of the equipment in the time unification field to be in a controllable state.
Disclosure of Invention
The invention aims to overcome one or more defects in the prior art and provides an automatic antenna inclination angle cruise satellite searching system and method.
The purpose of the invention is realized by the following technical scheme:
first part
The first part provides an automatic optimal-tour star searching system for an antenna inclination angle, which is applied to time unification field equipment and comprises a main control unit, an FPGA unit, an electric adjusting antenna unit, a receiver and a power supply unit; the main control unit is respectively connected with the receiver and the FPGA unit, the electric adjusting antenna unit is respectively connected with the FPGA unit and the receiver, the power supply unit is respectively connected with the FPGA unit and the electric adjusting antenna unit, and the power supply unit is also used for being connected with an external power supply; the electric tuning antenna unit comprises an antenna module and an electric tuning antenna control module, the electric tuning antenna control module is respectively connected with the antenna module and the power supply unit, the electric tuning antenna control module is connected with the FPGA unit through an AISG cable, and the antenna module is also connected with the receiver;
the antenna module is used for receiving satellite signals and sending the satellite signals to the receiver;
the receiver is used for generating first information according to the satellite signal and sending the first information to the main control unit;
the main control unit is used for analyzing the first information to obtain the satellite searching quantity and the carrier-to-noise ratio value, generating a first control signal and a second control signal according to the satellite searching quantity and the carrier-to-noise ratio value, and then sending the first control signal and the second control signal to the FPGA unit;
the FPGA unit is used for generating an OOK inclination angle fixing signal according to the first control signal, generating an OOK inclination angle adjusting signal according to the second control signal and sending the OOK inclination angle adjusting signal and the OOK inclination angle fixing signal to the electric regulation antenna control module;
the electrically-adjusted antenna control module is used for receiving an OOK inclination angle adjusting signal and an OOK inclination angle fixing signal sent by the FPGA unit and controlling an antenna inclination angle value of the antenna module according to the OOK inclination angle adjusting signal and the OOK inclination angle fixing signal;
the antenna module is further used for adjusting the antenna inclination angle value of the antenna module according to the OOK inclination angle adjusting signal and fixing the antenna inclination angle value of the antenna module according to the OOK inclination angle fixing signal.
The first part has the beneficial effects that:
(1) The main control unit judges the star searching quantity and the carrier-to-noise ratio value and confirms whether the current antenna inclination angle value of the electric tuning antenna unit is the optimal antenna inclination angle value or not, if yes, a first control signal is generated to fix the antenna inclination angle value of the electric tuning antenna unit, and if not, a second control signal is generated to adjust the antenna inclination angle value of the electric tuning antenna unit.
(2) The multi-scene compatibility of the star searching equipment with the star searching system is improved, and the application requirements of various geographic environments and position environments are met.
(3) The star searching system circuit structure realized by the part has high integration degree, is easy to integrate in the limited space of the existing star searching equipment, and has good market application prospect.
The second part
The second part provides an automatic antenna inclination angle tour optimization star search method, which is based on the automatic antenna inclination angle tour optimization star search system of the first part, and specifically comprises the following steps:
s1, receiving a satellite signal by an electric tuning antenna unit;
s2, the receiver generates first information;
s3, the main control unit analyzes the first information to obtain the satellite searching number and the carrier-to-noise ratio of the electric tuning antenna unit;
s4, the main control unit judges whether the star searching number is larger than a first threshold value, and if yes, the main control unit jumps to S7; if not, generating a second control signal, and then executing S5;
s5, the FPGA unit generates an OOK inclination angle adjusting signal according to the second control signal and then executes S6;
s6, the electrically-adjusted antenna unit adjusts the antenna inclination angle value according to the OOK inclination angle adjusting signal and then jumps to S1;
s7, the main control unit judges whether the carrier-to-noise ratio value is larger than a second threshold value, if so, a first control signal is generated, and then the S9 is skipped; if not, generating a second control signal, and then executing S8;
s8, the FPGA unit generates an OOK inclination angle adjusting signal according to the second control signal and then jumps to S6;
s9, generating an OOK inclination angle fixing signal by the FPGA unit according to the first control signal;
and S10, the electrically-adjusted antenna unit fixes the antenna inclination angle value of the electrically-adjusted antenna unit according to the OOK inclination angle fixing signal.
In a further improvement, after S10, the method further includes the following steps:
and the main control unit analyzes the latest first information to obtain satellite time service information, and performs time service according to the satellite time service information.
In a further improvement, after S10, the method further includes the following steps:
s11, the main control unit judges whether monitoring information of the electric adjusting antenna unit changes or not, and if yes, S1 is executed; if not, executing S11;
the monitoring information comprises position information of the electric tilt antenna unit.
The second part has the same technical effects as the first part, and is not described in detail herein. In addition, the beneficial effects of the second part also include: after the satellite searching system with the antenna inclination angle automatic optimization is installed at a specific application position, subsequent maintenance measures such as position transfer and the like often occur, and if whether the antenna inclination angle value of the electrically-adjusted antenna unit is in the optimal state is not judged again, the change of satellite searching performance is inevitably caused. And aiming at the change, the main control unit judges the monitoring information of the electrically-adjusted antenna unit, if the monitoring information changes, the main control unit judges whether the inclination angle value of the antenna at the moment is in the optimal state again, and if the inclination angle value of the antenna is not in the optimal state, the main control unit automatically triggers the antenna inclination angle to be optimized again until the inclination angle value of the antenna returns to the optimal state. The method realizes the self-adaptive performance of the automatic antenna inclination angle patrolling and optimizing satellite searching system.
Drawings
Fig. 1 is a logic block diagram of an antenna tilt angle automatic tour optimization star search system according to an embodiment;
FIG. 2 is a first part of a schematic diagram of an FPGA unit according to a first embodiment;
FIG. 3 is a second part of the schematic diagram of the FPGA unit according to the first embodiment;
FIG. 4 is a third part of a schematic diagram of an FPGA unit according to a first embodiment;
FIG. 5 is a schematic diagram of a power supply unit connected to an FPGA unit;
fig. 6 is a flowchart of an antenna tilt angle automatic satellite search method according to the second embodiment.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
Example one
The embodiment provides an automatic antenna inclination angle patrolling and optimizing star searching system, which is applied to time unification field equipment. As shown in fig. 1, the automatic antenna inclination angle cruise satellite search system includes a main control unit, an FPGA unit, an electrically tunable antenna unit, a receiver, and a power supply unit. The main control unit is respectively connected with the receiver and the FPGA unit, the electric tuning antenna unit is respectively connected with the FPGA unit and the receiver, the power supply unit is respectively connected with the FPGA unit and the electric tuning antenna unit, and the power supply unit is also used for being connected with an external power supply. In the embodiment, an external power supply adopts a 15V direct current power supply, a power supply unit generates direct current working voltages required by a main control unit, an FPGA unit and an electric tuning antenna unit according to input 15V direct current, and the direct current working voltages comprise 5V,3.3V,1V, 12V and the like. Generally, an electrically tunable antenna unit includes a driving motor and a phase shifter therein, and a power supply unit is configured to provide a dc operating voltage to the driving motor, and adjust the phase shifter through the driving motor, thereby adjusting an antenna tilt angle value.
The electric tuning antenna unit is used for receiving satellite signals and sending the satellite signals to the receiver.
The receiver is used for generating first information according to the satellite signals and sending the first information to the main control unit.
The main control unit is used for analyzing the first information to obtain the satellite searching quantity and the carrier-to-noise ratio, generating a first control signal and a second control signal according to the satellite searching quantity and the carrier-to-noise ratio, and then sending the first control signal and the second control signal to the FPGA unit.
The FPGA unit is used for generating an OOK inclination angle fixing signal according to the first control signal, generating an OOK inclination angle adjusting signal according to the second control signal, and sending the OOK inclination angle adjusting signal and the OOK inclination angle fixing signal to the electric adjusting antenna unit.
The electric tuning antenna unit is also used for adjusting the antenna inclination angle value according to the OOK inclination angle adjusting signal and fixing the antenna inclination angle value according to the OOK inclination angle fixing signal.
Specifically, the electrically tunable antenna unit is a commercially available model. In a general embodiment, an electrical tilt antenna unit includes an antenna module and an electrical tilt antenna control module. The electrically tunable antenna control module is respectively connected with the antenna module, the FPGA unit and the power supply unit, and the antenna module is further connected with the receiver.
The antenna module is used for receiving satellite signals and sending the satellite signals to the receiver.
The electrically-adjusted antenna control module is used for receiving an OOK inclination angle adjusting signal and an OOK inclination angle fixing signal sent by the FPGA unit and controlling an antenna inclination angle value of the antenna module according to the OOK inclination angle adjusting signal and the OOK inclination angle fixing signal.
Specifically, the main control unit comprises a single chip microcomputer with the model of GD32F450VIT6, and a plurality of I/O ports of the single chip microcomputer are connected with the FPGA unit. The FPGA unit comprises an FPGA module, an AISG transceiving controller, an OOK modulation signal output module and a first connector. The AISG transceiver controller is used for receiving a first control signal output by the singlechip through the FPGA module, generating an OOK inclination angle fixed signal, receiving a second control signal output by the singlechip through the FPGA module, and generating an OOK inclination angle adjusting signal. The FPGA module adopts GW2A-LV18PG256SC8/I7, a plurality of groups of I/O interface units are included in the FPGA module, and the plurality of groups of I/O interface units comprise a first group of I/O interface unit D4D. The AISG transceiver controller D5 is of the type MAX9947. The OOK modulation signal output module D6 is a double NMOS integrated chip, the model number adopted by the OOK modulation signal output module D6 is DMN3018SSD-13, the model number adopted by the DMN3018SSD-13 is BNC-75KYHD1-W, and the model number adopted by the first connector XS2 is BNC-75KYHD1-W.
As shown in FIGS. 2 to 4, the CMPCS _ B _2 terminal of the first group of I/O interface units D4D is connected to the DIRMD2 terminal of the AISG transceiver controller D5, the IO _ L2P _ CMPCLK _2 terminal of the first group of I/O interface units D4D is connected to the DIRMD1 terminal of the AISG transceiver controller D5, the IO _ L2N _ CMPMOSI _2 terminal of the first group of I/O interface units D4D is connected to the DIR terminal of the AISG transceiver controller D5, the IO _ L13N _ D10_2 terminal of the first group of I/O interface units D4D is connected to the SYNCOUT terminal of the AISG transceiver controller D5, the IO _ L14P _ D11_2 terminal of the first group of I/O interface units D4D is connected to the TXIN terminal of the AISG transceiver controller D5, the IO _ L14N _ D12_2 end of the first group of I/O interface unit D4D is connected to the RXOUT end of the AISG transceiver controller D5, the VCCO _2 end of the first group of I/O interface unit D4D is connected to the first 3.3V dc voltage output end VCC3V3_ FPGA end of the power supply unit, the VCCO _2 end of the first group of I/O interface unit D4D is connected to the first end of the first capacitor C99, the first end of the second capacitor C100, the first end of the third capacitor C101, the first end of the fourth capacitor C102, and the first end of the fifth capacitor C103, respectively, the second end of the first capacitor C99, the second end of the second capacitor C100, the second end of the third capacitor C101, the second end of the fourth capacitor C102, and the second end of the fifth capacitor C103 are all grounded. The VL end of the AISG receiving and dispatching controller D5 is connected to a second 3.3V direct-current voltage output end VCC3V3 end of the power supply unit, the VCC end of the AISG receiving and dispatching controller D5 is connected to a first 5V direct-current voltage output end VCC5V0 end of the power supply unit, the VCC end of the AISG receiving and dispatching controller D5 is grounded through a seventeenth capacitor C1 and an eighteenth capacitor C2 respectively, the XTAL1 end of the AISG receiving and dispatching controller D5 is connected with the first end of the first crystal oscillator X1, the XTAL2 end of the AISG receiving and dispatching controller D5 is connected with the second end of the first crystal oscillator X1, the first end of the first crystal oscillator X1 is grounded through a sixth capacitor C3, the second end of the first crystal oscillator X1 is grounded through a seventh capacitor C4, the two GND ends and the PGND end of the AISG receiving and dispatching controller D5 are grounded, the TXAL end of the AISG receiving and dispatching controller D5 is connected with the first end of a first resistor R1, the second end of the first resistor RSG receiving and R1 is connected with the second end of the RXRN 5, the RXR end of the AISG receiving and R5 is connected with the second end of the sixteenth capacitor C6, the second end of the first resistor R1 is connected to the first end of the eighth capacitor C5, the second end of the eighth capacitor C5 is connected to the first end of the second resistor R31, the second end of the second resistor R31 is connected to the S2 end of the OOK modulation signal output module D6, the S1 end of the OOK modulation signal output module D6 is connected to the S2 end of the OOK modulation signal output module D6, the G2 end of the OOK modulation signal output module D6 is connected to the G1 end of the OOK modulation signal output module D6, the G1 end of the OOK modulation signal output module D6 is connected to the first end of the third resistor R32, the second end of the third resistor R32 is connected to the second 3.3V dc voltage output end 3V3, the first end of the third resistor R32 is connected to the collector of the first NPN transistor Q1, the base of the first NPN transistor Q1 is connected to the first end of the fourth resistor R33, the first end of the fifth resistor R34, and the first end of the ninth capacitor C7, the first end of the fourth resistor R33 is connected to the GCLK 3/I interface unit, the second end of the fourth resistor R33 is connected to the GCLK3_ L3/I _ D3, a second end of the fifth resistor R34 and a second end of the ninth capacitor C7 are both connected to an emitter of the first NPN tube Q1, the emitter of the first NPN tube Q1 is grounded, a D2_2 end, a D2_1 end, a D1_1 end, and a D1_2 end of the OOK modulation signal output module D6 are all connected to a signal input port of the first connector XS2, a signal output port of the first connector XS2 is connected to the electrically tunable antenna control module, and generally, a signal output port of the first connector XS2 is connected to the electrically tunable antenna control module through an AISG cable.
As shown in fig. 5, a schematic diagram of the power supply unit for supplying power to the electrically tunable antenna control module is shown. An IO _ L16N _ VREF _2 end of the first group of I/O interface units D4D is connected to a first end of a sixth resistor R35, a second end of the sixth resistor R35 is connected to a first end of a seventh resistor R36 and a first end of a tenth capacitor C8, a second end of the seventh resistor R36 and a second end of the tenth capacitor C8 are both grounded, a second end of the sixth resistor R35 is further connected to a base of the second NPN transistor Q2, an emitter of the second NPN transistor Q2 is grounded, a collector of the second NPN transistor Q2 is connected to a first end of an eighth resistor R37 and a first end of an eleventh capacitor C12, a second end of the eighth resistor R37 is connected to a first end of a twelfth capacitor C9, a first end of a ninth resistor R38 and a first end of a thirteenth capacitor C10, a first end of the thirteenth capacitor C10 is further connected to a second end of the eleventh capacitor C12, a second end of the twelfth capacitor C9 is connected to a first terminal VCC voltage VCC12 of the power supply unit, a second end of the thirteenth capacitor Q4 is connected to a second terminal of a fourteenth capacitor Q3, a second terminal of a second inductor Q4, a second terminal of a fourteenth capacitor Q4 is connected to a second terminal of a second inductor Q3, a second terminal of a second inductor Q4 and a second terminal, a second terminal of a fourteenth diode Q4 is connected to a gate of a fourteenth diode Q4, a second terminal of a fourteenth diode Q4 and a diode Q3, a diode Q4, a second terminal of a fourteenth diode Q4 is connected to a gate of a fourteenth diode Q3, a diode Q4 and a diode Q4, a second terminal, a diode Q3 is connected to a second terminal of a diode Q3.
The working principle of the embodiment is as follows:
in the existing satellite searching equipment, a receiving and transmitting antenna connected with an internal receiver is usually a fixed declination antenna, the fixed declination antenna cannot automatically adjust the inclination angle value, and the mechanical inclination angle range of the fixed declination antenna which can be manually adjusted is very limited.
The invention adopts an electric tuning antenna unit. The electric adjusting antenna unit receives satellite signals, the satellite signals are sent to a receiver, the receiver outputs statement information supported by the receiver after the satellite signals are subjected to amplification, filtering and other processing in a receiving stage and sends the statement information to the single chip microcomputer, the statement information comprises information of the number of satellites and a carrier-to-noise ratio value, the single chip microcomputer analyzes the number of the satellites and the carrier-to-noise ratio value and judges the number of the satellites and the carrier-to-noise ratio value, if the judgment result is that the antenna inclination angle value of the electric adjusting antenna unit is in an optimal state, a first control signal is output, if the judgment result is that the antenna inclination angle value of the electric adjusting antenna unit is not in the optimal state, a second control signal is output, an FPGA module in the FPGA unit receives a first control signal sent by the singlechip and generates a first OOK signal, the FPGA module in the FPGA unit receives a second control signal sent by the singlechip and generates a second OOK signal, the first OOK signal or the second OOK signal is output to a TXIN end of an AISG transceiving controller D5 through an IO _ L14P _ D11_2 end of a first group of I/O interface units D4D, the AISG transceiving controller D5 modulates the first OOK signal and outputs an OOK inclination angle fixing signal, the AISG transceiving controller D5 modulates the second OOK signal and outputs an OOK inclination angle adjusting signal, and the OOK inclination angle fixing signal or the OOK inclination angle adjusting signal is output to an S2 end of an OOK modulation signal output module D6 through TXOUT of the AISG transceiving controller D5. When the IO _ L29P _ GCLK3_2 end of the first group of I/O interface units D4D outputs a high level, the OOK modulation signal output module D6 is turned on, and the OOK modulation signal output module D6 outputs an OOK tilt angle fixing signal or an OOK tilt angle adjusting signal through the D2_2 end thereof. When the IO _ L29P _ GCLK3_2 end of the first group of I/O interface units D4D outputs a low level, the OOK modulation signal output module D6 is turned off, and the D2_2 end of the OOK modulation signal output module D6 does not output an OOK tilt angle fixing signal or an OOK tilt angle adjusting signal. In addition, in order to supply power to the electric tuning antenna control module and drive a driving motor inside the electric tuning antenna control module to work, 12V direct-current voltage required by the driving motor is also output through the D2_2 end of the OOK modulation signal output module D6. When the IO _ L16N _ VREF _2 end of the first group of I/O interface units D4D outputs a high level, the second NPN transistor Q2 is turned on, the OOK _12V end of the second end of the diode Q4 outputs a 12V dc voltage, and the 12V dc voltage is output to the S2 end of the OOK modulation signal output module D6 through the first inductor L1; when the IO _ L16N _ VREF _2 end of the first group of I/O interface units D4D outputs a low level, the second NPN transistor Q2 is turned off, the OOK _12V end of the second end of the diode Q4 does not output a 12V dc voltage, and at this time, the D2_2 end of the OOK modulation signal output module D6 does not output a 12V dc voltage. In conclusion, the FPGA unit realizes the output of the OOK tilt angle fixing signal and the OOK tilt angle adjusting signal, controls whether the OOK tilt angle fixing signal and the OOK tilt angle adjusting signal are output, and simultaneously, the FPGA unit also realizes the control on whether the 12V dc voltage of the power supply unit is output.
After receiving the OOK inclination angle fixing signal, the electrically tunable antenna control module fixes the antenna inclination angle value of the antenna module, or after receiving the OOK inclination angle adjusting signal, the electrically tunable antenna control module adjusts the antenna inclination angle value of the antenna module.
The invention has the following remarkable advantages: the high integration of the main control unit and the FPGA unit is realized, and the main control unit and the FPGA unit are easy to integrate in the limited space of the existing satellite searching equipment, so that the satellite searching equipment can be widely applied to satellite searching performance optimization and transformation of the equipment in the existing time unification field.
Example two
As shown in fig. 6, the present embodiment provides an antenna tilt angle automatic satellite patrol and search method, which is based on the antenna tilt angle automatic satellite patrol and search system in the first embodiment and is applied to a time unification field device including the antenna tilt angle automatic satellite patrol and search system. The automatic patrolling and satellite searching method for the inclination angle of the antenna comprises the following specific steps of:
s1, receiving satellite signals by an electric adjusting antenna unit.
S2, the receiver generates first information.
And S3, the main control unit analyzes the first information to obtain the satellite searching number and the carrier-to-noise ratio of the electric tuning antenna unit.
S4, the main control unit judges whether the star searching number is larger than a first threshold value, and if yes, the main control unit jumps to S7; if not, generating a second control signal, and then executing S5.
And S5, the FPGA unit generates an OOK inclination angle adjusting signal according to the second control signal, and then S6 is executed.
And S6, the electrically-adjusted antenna unit adjusts the antenna inclination angle value according to the OOK inclination angle adjusting signal and then jumps to S1.
S7, the main control unit judges whether the carrier-to-noise ratio value is larger than a second threshold value, if so, the main control unit generates a first control signal, and then the S9 is skipped; if not, generating a second control signal, and then executing S8.
And S8, the FPGA unit generates an OOK inclination angle adjusting signal according to the second control signal and then jumps to S6.
And S9, generating an OOK inclination angle fixing signal by the FPGA unit according to the first control signal.
And S10, the electrically-adjusted antenna unit fixes the antenna inclination angle value of the electrically-adjusted antenna unit according to the OOK inclination angle fixing signal.
And S1 to S10 jointly complete the initial stage of automatic antenna inclination angle optimization inspection.
Preferably, the following steps are also included after S10: and the main control unit analyzes the latest first information to obtain satellite time service information, and performs time service according to the satellite time service information.
The first threshold is preferably four, and other values may be selected according to the time service accuracy requirement of the time unification domain device. The second threshold is preferably 30dB, and other values may be selected according to the time service precision requirement of the time-sharing domain device.
Preferably, the method further comprises the following steps after S10:
s11, the main control unit judges whether monitoring information of the electric adjusting antenna unit changes or not, and if yes, S1 is executed; if not, S11 is executed. The monitoring information comprises position information of the electric tilt antenna unit. The monitoring information can be obtained by monitoring the electric tilt antenna unit through the satellite searching system, and the corresponding monitoring information can also be input through an upper computer connected with the main control unit and outside the satellite searching system. The monitoring information can also be other monitored information which influences the star searching performance, such as environment change information of building shielding generated around the installation position.
Step S11, finishing the inspection phase of the automatic inspection of the inclination angle of the antenna, and when the position is shifted or the environment is changed, performing inspection again through the step S11 until the electric adjusting antenna unit reaches the optimal inclination angle state again.
The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (3)
1. The automatic antenna inclination angle patrolling and satellite searching method is based on an automatic antenna inclination angle patrolling and satellite searching system and is characterized in that the automatic antenna inclination angle patrolling and satellite searching system is applied to equipment in the field of time unification and comprises a main control unit, an FPGA unit, an electric adjusting antenna unit, a receiver and a power supply unit; the main control unit is respectively connected with the receiver and the FPGA unit, the electric adjusting antenna unit is respectively connected with the FPGA unit and the receiver, the power supply unit is respectively connected with the FPGA unit and the electric adjusting antenna unit, and the power supply unit is also used for being connected with an external power supply; the electric tuning antenna unit comprises an antenna module and an electric tuning antenna control module, the electric tuning antenna control module is respectively connected with the antenna module and the power supply unit, the electric tuning antenna control module is connected with the FPGA unit through an AISG cable, and the antenna module is also connected with the receiver;
the antenna module is used for receiving satellite signals and sending the satellite signals to the receiver;
the receiver is used for generating first information according to the satellite signal and sending the first information to the main control unit;
the main control unit is used for analyzing the first information to obtain the satellite searching quantity and the carrier-to-noise ratio value, generating a first control signal and a second control signal according to the satellite searching quantity and the carrier-to-noise ratio value, and then sending the first control signal and the second control signal to the FPGA unit;
the FPGA unit is used for generating an OOK inclination angle fixing signal according to the first control signal, generating an OOK inclination angle adjusting signal according to the second control signal, and sending the OOK inclination angle adjusting signal and the OOK inclination angle fixing signal to the electric tuning antenna control module;
the electric tuning antenna control module is used for receiving an OOK inclination angle adjusting signal and an OOK inclination angle fixing signal sent by the FPGA unit and controlling an antenna inclination angle value of the antenna module according to the OOK inclination angle adjusting signal and the OOK inclination angle fixing signal;
the antenna module is also used for adjusting the antenna inclination angle value of the antenna module according to the OOK inclination angle adjusting signal and fixing the antenna inclination angle value of the antenna module according to the OOK inclination angle fixing signal;
the automatic antenna inclination angle patrol optimization satellite searching method comprises the following steps:
s1, receiving a satellite signal by an electric tuning antenna unit;
s2, the receiver generates first information;
s3, the main control unit analyzes the first information to obtain the satellite searching number and the carrier-to-noise ratio of the electric tuning antenna unit;
s4, the main control unit judges whether the star searching number is larger than a first threshold value, and if yes, the main control unit jumps to S7; if not, generating a second control signal, and then executing S5;
s5, the FPGA unit generates an OOK inclination angle adjusting signal according to the second control signal and then executes S6;
s6, the electrically-adjusted antenna unit adjusts the antenna inclination angle value according to the OOK inclination angle adjusting signal and then jumps to S1;
s7, the main control unit judges whether the carrier-to-noise ratio value is larger than a second threshold value, if so, a first control signal is generated, and then S9 is skipped; if not, generating a second control signal, and then executing S8;
s8, the FPGA unit generates an OOK inclination angle adjusting signal according to the second control signal and then jumps to S6;
s9, generating an OOK inclination angle fixing signal by the FPGA unit according to the first control signal;
and S10, the electrically-adjusted antenna unit fixes the antenna inclination angle value of the electrically-adjusted antenna unit according to the OOK inclination angle fixing signal.
2. The method for automatically patrolling and searching for stars at an antenna inclination angle according to claim 1, further comprising the following steps after the step S10:
the main control unit analyzes the latest first information to obtain satellite time service information, and time service is carried out according to the satellite time service information.
3. The method for automatically patrolling and searching for stars at an antenna inclination angle according to claim 1, further comprising the following steps after the step S10:
s11, the main control unit judges whether monitoring information of the electric tilt antenna unit changes or not, if yes, S1 is executed; if not, executing S11;
and the monitoring information comprises position information of the electric tilt antenna unit.
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| US6433736B1 (en) * | 2000-11-22 | 2002-08-13 | L-3 Communications Corp. | Method and apparatus for an improved antenna tracking system mounted on an unstable platform |
| WO2006019290A1 (en) * | 2004-08-20 | 2006-02-23 | Stichting Astron | A method for installing an antenna of a satellite receiver on a celestial body, satellite receiver and control unit for such a satellite receiver |
| CN1896765A (en) * | 2005-07-11 | 2007-01-17 | 佛山市顺德区顺达电脑厂有限公司 | Antenna adjusting system and method for global positioning system, signal-strength display module and method |
| WO2008106624A2 (en) * | 2007-02-28 | 2008-09-04 | Slacker, Inc. | Antenna array for a hi/lo antenna beam pattern and method of utilization |
| CN106937300B (en) * | 2015-12-29 | 2019-11-22 | 上海无线通信研究中心 | A kind of method of dynamic and intelligent adjustment Downtilt |
| US10884094B2 (en) * | 2016-03-01 | 2021-01-05 | Kymeta Corporation | Acquiring and tracking a satellite signal with a scanned antenna |
| CN107171061A (en) * | 2017-05-15 | 2017-09-15 | 深圳星联天通科技有限公司 | A kind of electrical tilt antenna and terminal |
| CN107276643B (en) * | 2017-05-24 | 2020-08-14 | 西安空间无线电技术研究所 | Mobile communication satellite multi-beam carrier-to-interference ratio ground test system and method |
| CN108493609A (en) * | 2018-03-16 | 2018-09-04 | 北京爱科迪通信技术股份有限公司 | A kind of Ka wave band antennas star searching system and method |
| WO2022141535A1 (en) * | 2020-12-31 | 2022-07-07 | 深圳市大疆创新科技有限公司 | Movable platform positioning method, movable platform, and storage medium |
| CN113437517B (en) * | 2021-04-21 | 2024-04-12 | 北京爱科迪通信技术股份有限公司 | Satellite station satellite following system and method |
| CN113890598B (en) * | 2021-12-02 | 2022-02-15 | 四川九洲电器集团有限责任公司 | Hybrid scanning antenna tracking method, system, terminal and medium based on phased array |
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