CN114928416A - 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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- CN114928416A CN114928416A CN202210855848.7A CN202210855848A CN114928416A CN 114928416 A CN114928416 A CN 114928416A CN 202210855848 A CN202210855848 A CN 202210855848A CN 114928416 A CN114928416 A CN 114928416A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/336—Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/40—Monitoring; Testing of relay systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18513—Transmission in a satellite or space-based system
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses an automatic patrolling optimization star searching system and method for an antenna inclination angle. By using 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 number of satellites searched 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 so, 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, so that the satellite searching system with the antenna inclination angle automatically optimized in a tour mode is realized, and the satellite searching performance of the satellite 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 angle generated by shaping the amplitude and the phase of an antenna radiation unit array according to the wireless coverage requirement. 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 inclination angle value of the electrically tunable antenna is within a certain adjustable range.
The equipment in the field of time unification needs to receive satellite signals as a time reference source, and the performance of antenna star searching is greatly influenced by factors such as geographic environment, position environment, antenna and satellite signal inclination angles. 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-inspection realization research aiming at the antenna downward inclination angle 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 patrol optimizing star searching system and method.
The purpose of the invention is realized by the following technical scheme:
the first part
The first part provides an automatic optimal-tour star searching system for an antenna inclination angle, which comprises a main control unit, an FPGA unit, an electric-tuning 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 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 adjusting antenna unit;
the electric tilt antenna unit is further used for adjusting the antenna tilt angle value of the electric tilt antenna unit according to the OOK tilt angle adjusting signal and fixing the antenna tilt angle value of the electric tilt antenna unit according to the OOK tilt angle fixing signal.
In a further improvement, 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, the FPGA unit and the power supply unit, 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 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 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, so that the star searching system with the antenna inclination angle automatically patrolling is realized, the star searching performance of the star searching system is remarkably improved, and meanwhile, the star searching performance of the star searching system is in a controllable state.
(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, wherein the star searching equipment comprises equipment in the fields of time unification, satellite positioning and the like.
(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, the electrically-adjusted antenna unit receives satellite signals;
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, if yes, the main control unit jumps to S7; if not, generating a second control signal, and then executing S5;
s5, generating an OOK inclination angle adjusting signal by the FPGA unit according to the second control signal, and then executing S6;
s6, the electric adjusting 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 inclination angle value of the antenna according to the OOK inclination angle fixing signal.
In a further improvement, the method further includes the following steps after 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.
In a further improvement, the method further includes the following steps after S10:
and the main control unit analyzes the latest first information to obtain satellite positioning information and performs positioning according to the satellite positioning information.
In a further improvement, the method further includes the following steps after S10:
s11, the main control unit judges whether the monitoring information of the electric adjusting antenna unit changes, if so, 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 antenna inclination angle value at the moment is in the optimal state again, and if the antenna inclination angle value is not in the optimal state, the main control unit automatically triggers the antenna inclination angle to be optimized again until the antenna inclination angle value returns to the optimal state. By the method, the self-adaptive performance of the antenna inclination angle automatic patrolling satellite searching system is realized.
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 satellite searching system. 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 this embodiment, the external power supply adopts a 15V dc power supply, and the power supply unit generates dc operating voltages required by the main control unit, the FPGA unit and the electrically tunable antenna unit according to the input 15V dc power supply, where the dc operating voltages include 5V, 3.3V, 1V, 12V, and the like. Generally, an electrically tunable antenna unit includes a driving motor and a phase shifter inside, a power supply unit is used for providing a dc working voltage for the driving motor, and the phase shifter is adjusted by the driving motor, so as to adjust 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 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.
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 a model number 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 units D4D. The AISG transceiver controller D5 is of type MAX 9947. The OOK modulation signal output module D6 is made of DMN3018SSD-13, the DMN3018SSD-13 is a double NMOS integrated chip, and the first connector XS2 is made of BNC-75KYHD 1-W.
As shown in fig. 2 to 4, the CMPCS _ B _2 terminal of the first group of I/O interface units D4, D D 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 D4, D D 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 D4, D11 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 D4, D5 is connected to the SYNCOUT terminal of the AISG transceiver controller D595, the IO _ L14P _ D11_2 terminal of the first group of I/O interface units D4, D5 is connected to the in terminal of the AISG transceiver controller D5, the VCC 4, the rx _ L14 _ L11 _ D24 _2 terminal of the first group of I/O interface units D4, and the rx _ V _2 terminal of the AISG transceiver controller D863 is connected to the IO _ out 3 terminal of the first group of the AISG transceiver controller D D, and the VCCO _2 terminal of the first group of I/O interface units D4D is respectively connected to the first terminal of the first capacitor C99, the first terminal of the second capacitor C100, the first terminal of the third capacitor C101, the first terminal of the fourth capacitor C102, and the first terminal of the fifth capacitor C103, and the second terminal of the first capacitor C99, the second terminal of the second capacitor C100, the second terminal of the third capacitor C101, the second terminal of the fourth capacitor C102, and the second terminal of the fifth capacitor C103 are all grounded. The VL end of the AISG transceiver controller D5 is connected to the second 3.3V dc voltage output terminal VCC3V3 of the power supply unit, the VCC end of the AISG transceiver controller D5 is connected to the first 5V dc voltage output terminal VCC5V0 of the power supply unit, the VCC end of the AISG transceiver controller D5 is further grounded via a seventeenth capacitor C1 and an eighteenth capacitor C2, respectively, the XTAL1 end of the AISG transceiver controller D5 is connected to the first end of the first crystal oscillator X1, the XTAL2 end of the AISG transceiver controller D5 is connected to the second end of the first crystal oscillator X1, the first end of the first crystal oscillator X1 is further grounded via a sixth capacitor C3, the second end of the first crystal oscillator X1 is further grounded via a seventh capacitor C4, the two and nd ends of the AISG transceiver controller D5 are grounded, the pgg transceiver controller D5 is connected to the first end of the first resistor aisr 686r 9, the first end of the txr transceiver controller D8653 is further connected to the first end of the txr resistor 828653, a second terminal of the first resistor R1 is connected to a first terminal of an eighth capacitor C5, a second terminal of an eighth capacitor C5 is connected to a first terminal of a second resistor R31, a second terminal of the second resistor R31 is connected to a terminal S2 of the OOK modulation signal output module D6, a terminal S1 of the OOK modulation signal output module D6 is connected to a terminal S6 of the OOK modulation signal output module D6, a terminal G6 of the OOK modulation signal output module D6 is connected to a terminal G6 of the OOK modulation signal output module D6, a terminal G6 of the OOK modulation signal output module D6 is connected to a first terminal of a third resistor R6, a second terminal of the third resistor R6 is connected to a terminal VCC3V 6 of a second 3.3V dc voltage output terminal VCC, a first terminal of the third resistor R6 is connected to a collector of the first NPN transistor Q6, a base of the first transistor Q6 is connected to a first terminal GCLK of the first terminal GCLK R72, and a first terminal ninth resistor R6 of the NPN unit 6 and a first terminal Q6 are connected to a first terminal of the NPN unit 6, 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 transistor Q1, the emitter of the first NPN transistor 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 both 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. The IO _ L16N _ VREF _2 terminal of the first group of I/O interface unit D4D is connected to the first terminal of the sixth resistor R35, the second terminal of the sixth resistor R35 is connected to the first terminal of the seventh resistor R36 and the first terminal of the tenth capacitor C8, respectively, the second terminal of the seventh resistor R36 and the second terminal of the tenth capacitor C8 are both grounded, the second terminal of the sixth resistor R35 is further connected to the base of the second NPN tube Q2, the emitter of the second NPN tube Q2 is grounded, the collector of the second NPN tube Q2 is connected to the first terminal of the eighth resistor R37 and the first terminal of the eleventh capacitor C12, respectively, the second terminal of the eighth resistor R37 is connected to the first terminal of the twelfth capacitor C9, the first terminal of the ninth resistor R38 and the first terminal of the thirteenth capacitor C10, respectively, the first terminal of the thirteenth capacitor C10 is further connected to the second terminal of the eleventh capacitor C395, and the second terminal of the twelfth capacitor V9 is connected to the output terminal of the dc supply voltage supply unit V57312, a second end of the ninth resistor R38 and a second end of the thirteenth capacitor C10 are both connected to a second end of the twelfth capacitor C9, a second end of the thirteenth capacitor C10 is further connected to a source of the first PMOS transistor Q3, a second end of the eleventh capacitor C12 is connected to a gate of the first PMOS transistor Q3, a drain of the first PMOS transistor Q3 is connected to a first end of the diode Q4, a second end of the diode Q4 is respectively connected to a first end of the fourteenth capacitor C13 and a first end of the fifteenth capacitor C11, a second end of the fourteenth capacitor C13 and a second end of the fifteenth capacitor C11 are both grounded, a second end of the diode Q4 is defined as an OOK _12V end, the second end of the diode Q4 outputs a 12V dc voltage to the first end of the first inductor L1, and the second end of the first inductor L1 is connected to an S2 end of the OOK modulation signal output module D6.
The working principle of the embodiment is as follows:
in the existing satellite searching equipment, such as time unification field equipment or satellite positioning equipment, a transceiver antenna connected with an internal receiver of the existing satellite searching equipment is generally a fixed downtilt antenna, the fixed downtilt antenna cannot automatically adjust an inclination angle value, and a mechanical inclination angle range of the fixed downtilt antenna which can be manually adjusted is very limited.
The invention adopts an electric tuning antenna unit. The electrically-adjustable antenna unit receives a satellite signal, the satellite signal is sent to a receiver, the receiver amplifies and filters the satellite signal at a receiving level, outputs statement information supported by the receiver and sends the statement information to the single chip microcomputer, the statement information comprises information of the number of searched satellites and the carrier-to-noise ratio, the single chip microcomputer analyzes the number of the searched satellites and the carrier-to-noise ratio and judges the number of the searched satellites and the carrier-to-noise ratio, if the judgment result shows that the antenna inclination angle value of the electrically-adjustable antenna unit is in an optimal state, a first control signal is output, if the judgment result shows that the antenna inclination angle value of the electrically-adjustable antenna unit is not in the optimal state, a second control signal is output, an FPGA module in the FPGA unit receives the first control signal sent by the single chip microcomputer and generates a first OOK signal, an FPGA module in the FPGA unit receives the second control signal sent by the single chip microcomputer and generates a second OOK signal, the first OOK signal or the second OOK signal is output to the TXIN terminal of the AISG transceiving controller D5 through the IO _ L14P _ D11_2 terminal of the first group of I/O interface unit D4D, the AISG transceiving controller D5 modulates the first OOK signal and outputs an OOK tilt angle fixing signal, the AISG transceiving controller D5 modulates the second OOK signal and outputs an OOK tilt angle adjusting signal, and the OOK tilt angle fixing signal or the OOK tilt angle adjusting signal is output to the S2 terminal of the OOK modulation signal output module D6 through the TXOUT of the AISG transceiving controller D5. When the IO _ L29P _ GCLK3_2 terminal 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 its D2_2 terminal. When the IO _ L29P _ GCLK3_2 terminal 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 terminal of the OOK modulation signal output module D6 does not output the OOK tilt angle fixing signal or the OOK tilt angle adjusting signal. In addition, in order to supply power to the electric tuning antenna control module, the driving motor inside the electric tuning antenna control module is driven to operate, and 12V dc voltage required by the driving motor is also output through the D2 — 2 terminal of the OOK modulation signal output module D6. When the IO _ L16N _ VREF _2 end of the first group of I/O interface unit 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 unit 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 the D2_2 end of the OOK modulation signal output module D6 does not output a 12V dc voltage at this time. In summary, the FPGA unit implements output of the OOK tilt angle fixing signal and the OOK tilt angle adjusting signal, and controls whether the OOK tilt angle fixing signal and the OOK tilt angle adjusting signal are output or not, and meanwhile, the FPGA unit also implements control on whether the 12V dc voltage of the power supply unit is output or not.
After receiving the OOK inclination angle fixing signal, the electrically-controlled antenna control module fixes the antenna inclination angle value of the antenna module, or after receiving the OOK inclination angle adjusting signal, the electrically-controlled 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 the satellite searching performance optimization and transformation of the existing time-unifying field equipment or satellite positioning equipment.
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 optimizing star searching method for the inclination angle of the antenna comprises the following specific steps of:
and S1, receiving the satellite signal by the electrically adjusted antenna unit.
S2, the receiver generates the 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, if so, the main control unit jumps to S7; if not, a second control signal is generated, and then S5 is performed.
And S5, generating an OOK tilt angle adjusting signal by the FPGA unit according to the second control signal, and then executing S6.
And S6, the electrically-adjusted antenna unit adjusts the antenna inclination angle value thereof according to the OOK inclination angle adjusting signal, and then the step is switched 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 jumps to S9; if not, a second control signal is generated, and then S8 is performed.
And S8, generating an OOK inclination angle adjusting signal by the FPGA unit according to the second control signal, and then jumping 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 inclination angle value of the antenna according to the OOK inclination angle fixing signal.
The steps S1 to S10 together complete the initial stage of the automatic antenna tilt angle cruise.
Preferably, the method further comprises the following steps after 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.
The first threshold is preferably four, and other values may be selected according to the time service precision 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 the monitoring information of the electric adjusting antenna unit changes, if so, S1 is executed; if not, go to S11. 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 monitoring phase of the antenna inclination angle automatic optimization patrol, and when the position is shifted or the environment is changed, carrying out the optimization patrol again through step S11 until the electric adjusting antenna unit reaches the optimal inclination angle state again.
EXAMPLE III
The difference between this embodiment and the second embodiment is: the method for automatically patrolling and searching the satellite at the inclination angle of the antenna is applied to satellite positioning equipment comprising an automatic patrolling and searching system at the inclination angle of the antenna.
After S10, the method also comprises the following steps: and the main control unit analyzes the latest first information to obtain satellite positioning information and performs positioning according to the satellite positioning information.
The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and is not to be construed as limited to the exclusion of other embodiments, and that various other combinations, modifications, and environments may be used and modifications may be made within the scope of the concepts described herein, either by the above teachings or the skill or knowledge of 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 (6)
1. An antenna inclination angle automatic tour optimization star searching system is characterized by comprising 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 tilt 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 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 fixed 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 fixed signal to the electric adjusting antenna unit;
the electric tilt antenna unit is further used for adjusting the antenna tilt angle value of the electric tilt antenna unit according to the OOK tilt angle adjusting signal and fixing the antenna tilt angle value of the electric tilt antenna unit according to the OOK tilt angle fixing signal.
2. The system according to claim 1, wherein the electrically tunable antenna unit comprises an antenna module and an electrically tunable antenna control module, the electrically tunable antenna control module is respectively connected to the antenna module, the FPGA unit and the power supply unit, and the antenna module is further connected to the receiver;
the antenna module is used for receiving satellite signals and sending the satellite signals to the receiver;
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.
3. An automatic antenna inclination angle tour optimization star search method based on the antenna inclination angle tour optimization star search system according to any one of claims 1-2, the automatic antenna inclination angle tour optimization star search method comprising the following steps:
s1, the electrically-adjusted antenna unit receives satellite signals;
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, if yes, the main control unit jumps to S7; if not, generating a second control signal, and then executing S5;
s5, generating an OOK inclination angle adjusting signal by the FPGA unit according to the second control signal, and then executing S6;
s6, the electrically-adjusted antenna unit adjusts the antenna inclination angle value thereof 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 the step 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 inclination angle value of the antenna according to the OOK inclination angle fixing signal.
4. The method for automatic cruise search according to claim 3, wherein said step of S10 is further followed by the steps of:
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.
5. The automatic patrolling and optimizing star searching method for the inclination angle of the antenna according to claim 3, further comprising the following steps after the step S10:
and the main control unit analyzes the latest first information to obtain satellite positioning information and performs positioning according to the satellite positioning information.
6. The automatic patrolling and optimizing star searching method for the inclination angle of the antenna according to claim 3, further comprising the following steps after the step S10:
s11, the main control unit judges whether the monitoring information of the electric adjusting antenna unit changes, if so, S1 is executed; if not, executing S11;
the monitoring information comprises position information of the electric tilt antenna unit.
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