CN104393412A - Antenna control device and method - Google Patents
Antenna control device and method Download PDFInfo
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- CN104393412A CN104393412A CN201410737151.5A CN201410737151A CN104393412A CN 104393412 A CN104393412 A CN 104393412A CN 201410737151 A CN201410737151 A CN 201410737151A CN 104393412 A CN104393412 A CN 104393412A
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Abstract
The invention discloses an antenna control device and method which includes a field programmable gate array (FPGA) chip, a radio frequency front end, a temperature and humidity sensor, an SDRAM, a power control module, a WIFI module, a motor control module, an inertial navigation module, an upper computer, a code storage and a light-emitting diode (LED) lamp. The FPGA chip comprises an Avalon bus, a single pulse receiver, an NIOS II processor, a serial bus interface, an algorithm module, a storage module, a timer, an external interruption vector module, two RS232 interfaces, two RS422 interfaces, an RS485 interface, an SPI controller and an LED control module. The antenna control device and method is small in development difficulty, low in manufacture cost, high in data transmission speed, high in calculation accuracy and high in expandability. The hardware acceleration algorithm module can be flexibly added, the floating point data meeting the IEEE format can be directly processed, a plurality of serial ports in communication with the external device can be hung simultaneously, a serial port receiving and dispatching module is achieved by an internal hardware of the FPGA chip and serves as a peripheral device of the NIOS II processor, and the baud rate can be set by the user arbitrarily according to the actual requirements.
Description
Technical field
The present invention relates to a kind of method of antenna control hardware platform and system software controls antenna, particularly relate to a kind of ACU antenna control unit and method, be mainly used in sky line traffic control that is airborne, vehicle-mounted and boats and ships communication in moving.
Background technology
In the fpga chip of existing ACU antenna control unit, the main STM32 single-chip microcomputer that adopts completes communicating of Electric Machine Control part and inertial navigation navigation module as processor, and the general RS232 of employing data wire connects between fpga chip various components inside, this structure also exists following defect:
1, PCB fabric swatch area is large and development difficulty is high;
2, extensibility is strong, and user can not develop other interface according to the actual requirements, as network interface, PCIE
Deng high-speed interface;
3, hardware-accelerated algoritic module can not add flexibly, does not have directly available built-in function;
4, directly can not process and meet IEEE form floating data;
5, can not realize hanging up serial ports that is multiple and external device communication simultaneously;
6, data processing speed is slow, and computational accuracy is lower.
Summary of the invention
Object of the present invention is just to provide a kind of ACU antenna control unit and method to solve the problem.
In order to achieve the above object, present invention employs following technical scheme:
A kind of ACU antenna control unit, comprises fpga chip, radio-frequency front-end, Temperature Humidity Sensor, SDRAM, energy supply control module, WIFI module, motor control module, inertial navigation navigation module, host computer, code memory and LED, described fpga chip comprises Avalon bus, monopulse receiver, NIOS II processor, serial bus interface, algoritic module, memory module, timer, external interrupt vector module, two RS232 interfaces, two RS422 interfaces, a RS485 interface, SPI controller and LED control module, described monopulse receiver, described NIOS II processor, described serial bus interface, described algoritic module, described memory module, described timer, described external interrupt vector module, described RS232 interface, described RS422 interface, described RS485 interface, described SPI controller and described LED control module are all hung in described Avalon bus, described monopulse receiver is connected with described radio-frequency front-end, described serial bus interface is connected with described Temperature Humidity Sensor, described memory module is connected with described SDRAM, described in first, RS232 interface is connected with described energy supply control module, described in second, RS232 interface is connected with described WIFI module, described RS485 interface is connected with described motor control module, RS422 interface described in first is connected with described inertial navigation navigation module, described in second, RS232 interface is connected with described host computer, described SPI controller is connected with described code memory, and described LED control module is connected with described LED.
Preferably, the model that described code memory is selected is EPCS64.
Aforesaid ACU antenna control unit is utilized to carry out a method for day line traffic control, the control by the complete twin aerial of following steps:
A1: power on to described fpga chip by described energy supply control module, and by the serial ports initialization of all parts in described fpga chip;
A2: the configuration of being read the described code memory last time by described NIOS II processor, comprising reading configuration checking data;
A3: reply the message that described host computer sends, each message comprises the state information of described ACU antenna control unit;
A4: described radio-frequency front-end gets back to initial value, carries out motor status inspection by the azimuth-drive motor in described motor control module, pitching motor and the initialization of polarization motor position, and arranges pulse beacon frequency, check the communications status of described monopulse receiver;
A5: by the initialization of described inertial navigation navigation module, and locating information is sent to described inertial navigation navigation module;
A6: by the parameter initialization of described algoritic module;
A7: start star, arranges satellite acquisition target, adopts directly to star mode or indirectly to star mode, and described be directly Offered target satellite to star mode is search target, and described is arrange reference satellite for search target to star mode indirectly;
A8: search star roughly, finds the point of certain AGC, described inertial navigation navigation module closed loop, but without correction data, described monopulse receiver locking;
A9: precisely search star, maximum AGC point near looking for, described inertial navigation navigation module closed loop, without correction data, if cannot lock AGC point, then jumps to steps A 8, if need Multiple-Scan, then performs steps A 10, if locking AGC point, then jumps to steps A 11;
A10: Offered target satellite is search target, and according to the differential seat angle of reference satellite and target satellite, by described motor control module fixed antenna angle;
A11: keep starlike state, with described inertial navigation navigation module in range of drift to star, if the difference signal at described radio-frequency front-end place is unavailable, then perform steps A 12, if the difference signal at described radio-frequency front-end place can be used, then jump to A14;
A12: repeat steps A 8, the difference signal at the 5dB value of searching for described radio-frequency front-end place and signal extremely described radio-frequency front-end place can be used;
A13: precisely search star, look within the scope of the 3dB of neighbouring maximum AGC point, described inertial navigation navigation module closed loop, without correction data;
A14: follow the tracks of star, corrects the drift of described inertial navigation navigation module with the difference signal at described radio-frequency front-end place.
Further, time standby in star process, be in and wait for user command state, comprising the protection disturbed adjacent star and switch satellite order, control command to described azimuth-drive motor, described pitching motor and described polarization motor.
Beneficial effect of the present invention is:
The present invention have employed NIOS II processor and instead of STM32 single-chip microcomputer in fpga chip, and have employed Avalon bus and carry out intercommunication connection, PCB fabric swatch area is little, development difficulty is little, the expense of minimizing system, improve data transmission bauds and the throughput of unit interval, and computational accuracy is high, achieve the high speed interconnect with flush bonding processor, hardware-accelerated algoritic module can add flexibly, in NIOS II processor, there is directly available built-in function, directly can process and meet IEEE form floating data, extensibility is strong, user can develop other interface according to the actual requirements, can realize hanging up serial ports that is multiple and external device communication simultaneously, serial ports transceiver module is realized by fpga chip internal hardware, as the peripheral hardware of NIOS II processor, user can be according to the actual requirements, by NIOS II processor in house software, any baud rate is set, support 9600bps ~ 10Mbps transmission rate.
Accompanying drawing explanation
Fig. 1 is the hardware block diagram of ACU antenna control unit of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described in detail:
As shown in Figure 1, the present invention includes fpga chip 1, radio-frequency front-end 3, Temperature Humidity Sensor 4, SDRAM5, energy supply control module 18, WIFI module 19, motor control module 20, inertial navigation navigation module 21, host computer 22, code memory 23 and LED 24, the model that wherein code memory 23 is selected is EPCS64, and fpga chip 1 comprises Avalon bus 26, monopulse receiver 6, NIOS II processor 2, serial bus interface 7, algoritic module 8, memory module 9, timer 10, external interrupt vector module 25, two RS232 interfaces, two RS422 interfaces, a RS485 interface 13, SPI controller 16 and LED control module 17, NIOS II processor 2 select NIOS II processor, monopulse receiver 6, NIOS II processor 2, serial bus interface 7, algoritic module 8, memory module 9, timer 10, external interrupt vector module 25, two RS232 interfaces, two RS422 interfaces, RS485 interface 13, SPI controller 16 and LED control module 17 are all hung in Avalon bus 26, monopulse receiver 6 is connected with radio-frequency front-end 3, serial bus interface 7 is connected with Temperature Humidity Sensor 4, memory module 9 is connected with SDRAM5, one RS232 interface 11 is connected with energy supply control module 18,2nd RS232 interface 12 is connected with WIFI module 19, RS485 interface 13 is connected with motor control module 20, one RS422 interface 14 is connected with inertial navigation navigation module 21,2nd RS422 interface 15 is connected with host computer 22, SPI controller 16 is connected with code memory 23, and LED control module 17 is connected with LED 24.
As shown in Figure 1,32 soft core flush bonding processors that dotted portion to be master control fpga chip 1, the NIOS II processor 2 of ACU antenna control unit be fpga chip 1 is embedded, for completing all software control part.Monopulse receiver 6 is core components of signal processing, completes Digital Down Convert, digital detection, loop tracks, AGC backoff algorithm, digital phase shift, demodulation Ua, Ue scheduling algorithm function.Algoritic module 8 i.e. trigonometric function hardware algorithm accelerating module, these parts are also the preconditions selecting the program, custom instruction implementation algorithm is adopted to accelerate, it utilizes the parallel processing energy of fpga chip 1 and pile line operation flexibly to realize, and software needs to call hardware algorithm module and calculates pitching, polarization angularly.The multiplexing same module of transceiver module of RS232 interface, RS422 interface and RS485 interface, baud rate parametrization.Parameter is sent to serial ports transceiver module when each serial ports of initialization by software, supports baud rate 9600bps ~ 10Mbps.The function of WIFI module 19 is to provide panel computer controlled in wireless antenna control module, controls within can supporting 10M.Energy supply control module 18 needs NIOS II processor 2 to obtain longitude and latitude and attitude information by two RS422 interfaces from inertial navigation navigation module 21, by geographical trigonometric coordinates system computing formula, the algorithm accelerating module calling algoritic module 8 is now needed to promote computational speed.Calculate the angle parameter of the orientation needed for motor control module 20, pitching motor.Host computer 22 has the AccessPort software based on RS422 interface, complete search star, heavy auxiliary, follow the tracks of, configuration monopulse receiver 6 parameter, motor control module 20, all serial ports Initialize installation and Energy control.All orders possess certain data format, and NIOS II processor 2, according to the format analysis order of Frame, is sent to corresponding control module.SDRAM is mainly used in NIOS II processor 2 software program start-up code, and in each run NIOS II processor 2, software need from the instruction of SDRAM access correspondence.The timer that timer 10 produces with hardware description language, for software simulating provides service.Temperature Humidity Sensor 4, for providing the humiture of present control device, can be monitored and show in real time at host computer 22.SPI controller 16 is divided into three storage areas for EPCS64 configuring chip, except the software code for storing FPGA code and NIOS II processor 2, also for storing parameter and the comparatively correction data of monopulse receiver 6, the comparatively correction data of each frequency to be followed the tracks of according to storage format storage from top to down.
After the peripheral framework of NIOS II processor 2 completes, build board suppot package BSP, generate in header file system.h according to hardware information and comprise all hardware information, the corresponding base address of each module.
The step of method of controlling antenna of the present invention is as follows:
A1: power on to fpga chip 1 by energy supply control module 18, and by the serial ports initialization of all parts in fpga chip 1;
A2: the configuration of being read code memory 23 last time by NIOS II processor 2, comprising reading configuration checking data;
A3: reply the message that host computer 22 sends, each message comprises the state information of ACU antenna control unit;
A4: radio-frequency front-end 3 gets back to initial value, carries out motor status inspection by the azimuth-drive motor in motor control module 20, pitching motor and the initialization of polarization motor position, and arranges pulse beacon frequency, the communications status of checklist pulse receiver 6;
A5: by inertial navigation navigation module 21 initialization, and locating information is sent to inertial navigation navigation module 21;
A6: by the parameter initialization of algoritic module 8;
A7: start star, arranges satellite acquisition target, adopts directly to star mode or indirectly to star mode, be directly Offered target satellite to star mode is search target, is arrange reference satellite for search target indirectly to star mode;
A8: search star roughly, finds the point of certain AGC, AGC and automatic ride gain, inertial navigation navigation module 21 closed loop, but without correction data, monopulse receiver 6 locks;
A9: precisely search star, maximum AGC point near looking for, inertial navigation navigation module 21 closed loop, without correction data, if cannot lock AGC point, then jumps to steps A 8, if need Multiple-Scan, then performs steps A 10, if locking AGC point, then jumps to steps A 11;
A10: Offered target satellite is search target, and according to the differential seat angle of reference satellite and target satellite, by motor control module 20 fixed antenna angle;
A11: keep starlike state, with inertial navigation navigation module 21 in range of drift to star, if the difference signal at radio-frequency front-end 3 place is unavailable, then perform steps A 12, if the difference signal at radio-frequency front-end 3 place can be used, then jump to A14;
A12: repeat steps A 8,5dB value to the difference signal at radio-frequency front-end 3 place of search radio-frequency front-end 3 place and signal can be used;
A13: precisely search star, look within the scope of the 3dB of neighbouring maximum AGC point, inertial navigation navigation module 21 closed loop, without correction data;
A14: follow the tracks of star, corrects the drift of inertial navigation navigation module 21 with the difference signal at radio-frequency front-end 3 place.
Time standby in star process, be in and wait for user command state, comprising the protection disturbed adjacent star and switch satellite order, control command to azimuth-drive motor, pitching motor and polarization motor.
Claims (4)
1. an ACU antenna control unit, comprises fpga chip, radio-frequency front-end, Temperature Humidity Sensor, SDRAM, energy supply control module, WIFI module, motor control module, inertial navigation navigation module, host computer, code memory and LED, is characterized in that: described fpga chip comprises Avalon bus, monopulse receiver, NIOS II processor, serial bus interface, algoritic module, memory module, timer, external interrupt vector module, two RS232 interfaces, two RS422 interfaces, a RS485 interface, SPI controller and LED control module, described monopulse receiver, described NIOS II processor, described serial bus interface, described algoritic module, described memory module, described timer, described external interrupt vector module, described RS232 interface, described RS422 interface, described RS485 interface, described SPI controller and described LED control module are all hung in described Avalon bus, described monopulse receiver is connected with described radio-frequency front-end, described serial bus interface is connected with described Temperature Humidity Sensor, described memory module is connected with described SDRAM, described in first, RS232 interface is connected with described energy supply control module, described in second, RS232 interface is connected with described WIFI module, described RS485 interface is connected with described motor control module, RS422 interface described in first is connected with described inertial navigation navigation module, described in second, RS232 interface is connected with described host computer, described SPI controller is connected with described code memory, and described LED control module is connected with described LED.
2. ACU antenna control unit according to claim 1, is characterized in that: the model that described code memory is selected is EPCS64.
3. utilize the ACU antenna control unit in claim 1-2 described in any one to carry out a method for day line traffic control, it is characterized in that: comprise the following steps:
A1: power on to described fpga chip by described energy supply control module, and by the serial ports initialization of all parts in described fpga chip;
A2: the configuration of being read the described code memory last time by described NIOS II processor, comprising reading configuration checking data;
A3: reply the message that described host computer sends, each message comprises the state information of described ACU antenna control unit;
A4: described radio-frequency front-end gets back to initial value, carries out motor status inspection by the azimuth-drive motor in described motor control module, pitching motor and the initialization of polarization motor position, and arranges pulse beacon frequency, check the communications status of described monopulse receiver;
A5: by the initialization of described inertial navigation navigation module, and locating information is sent to described inertial navigation navigation module;
A6: by the parameter initialization of described algoritic module;
A7: start star, arranges satellite acquisition target, adopts directly to star mode or indirectly to star mode, and described be directly Offered target satellite to star mode is search target, and described is arrange reference satellite for search target to star mode indirectly;
A8: search star roughly, finds the point of certain AGC, described inertial navigation navigation module closed loop, but without correction data, described monopulse receiver locking;
A9: precisely search star, maximum AGC point near looking for, described inertial navigation navigation module closed loop, without correction data, if cannot lock AGC point, then jumps to steps A 8, if need Multiple-Scan, then performs steps A 10, if locking AGC point, then jumps to steps A 11;
A10: Offered target satellite is search target, and according to the differential seat angle of reference satellite and target satellite, by described motor control module fixed antenna angle;
A11: keep starlike state, with described inertial navigation navigation module in range of drift to star, if the difference signal at described radio-frequency front-end place is unavailable, then perform steps A 12, if the difference signal at described radio-frequency front-end place can be used, then jump to A14;
A12: repeat steps A 8, the difference signal at the 5dB value of searching for described radio-frequency front-end place and signal extremely described radio-frequency front-end place can be used;
A13: precisely search star, look within the scope of the 3dB of neighbouring maximum AGC point, described inertial navigation navigation module closed loop, without correction data;
A14: follow the tracks of star, corrects the drift of described inertial navigation navigation module with the difference signal at described radio-frequency front-end place.
4. ACU antenna control unit according to claim 3; it is characterized in that: time standby in star process; be in and wait for user command state, comprising the protection disturbed adjacent star and switch satellite order, control command to described azimuth-drive motor, described pitching motor and described polarization motor.
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| CN201410737151.5A CN104393412A (en) | 2014-12-05 | 2014-12-05 | Antenna control device and method |
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| CN201410737151.5A CN104393412A (en) | 2014-12-05 | 2014-12-05 | Antenna control device and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105045298A (en) * | 2015-08-04 | 2015-11-11 | 北京航天控制仪器研究所 | Communication-in-moving antenna tracking control method based on inertial navigation system measurement lagging |
| CN108256269A (en) * | 2018-02-23 | 2018-07-06 | 晶晨半导体(上海)股份有限公司 | A kind of processor chips and printed circuit board |
| CN108897244A (en) * | 2018-07-05 | 2018-11-27 | 北京星网卫通科技开发有限公司 | A kind of control system of antenna control unit |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105045298A (en) * | 2015-08-04 | 2015-11-11 | 北京航天控制仪器研究所 | Communication-in-moving antenna tracking control method based on inertial navigation system measurement lagging |
| CN105045298B (en) * | 2015-08-04 | 2017-11-07 | 北京航天控制仪器研究所 | A kind of antenna for satellite communication in motion tracking and controlling method based on inertial navigation system Measurement delay |
| CN108256269A (en) * | 2018-02-23 | 2018-07-06 | 晶晨半导体(上海)股份有限公司 | A kind of processor chips and printed circuit board |
| CN108256269B (en) * | 2018-02-23 | 2022-06-28 | 晶晨半导体(上海)股份有限公司 | Processor chip and printed circuit board |
| CN108897244A (en) * | 2018-07-05 | 2018-11-27 | 北京星网卫通科技开发有限公司 | A kind of control system of antenna control unit |
| CN108897244B (en) * | 2018-07-05 | 2020-03-17 | 北京星网卫通科技开发有限公司 | Control system of antenna control unit |
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Application publication date: 20150304 |