CN115833923B - Multifunctional satellite remote sensing information intelligent service terminal - Google Patents
Multifunctional satellite remote sensing information intelligent service terminal Download PDFInfo
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Abstract
The invention provides a multifunctional satellite remote sensing information intelligent service terminal, and mainly relates to the technical field of remote sensing information service. The multifunctional satellite remote sensing information intelligent service terminal comprises a system part and a mechanical part, wherein the system part comprises a receiving subsystem, a wireless module, channel equipment, auxiliary equipment and a control terminal; the receiving subsystem comprises an antenna assembly, a pitching turntable, a servo mechanism and a wireless control unit; the wireless module comprises a WIFI module; the channel equipment comprises a data transmission channel and a measurement and control channel; the auxiliary equipment comprises a power supply module, a storage and transportation part and a foot margin assembly; the control terminal comprises station management software and a main control computer. The invention mainly aims to establish an emergency remote sensing information service system which can be used for quick response and deployment, and the device is convenient to carry, so that the remote sensing information service function for coping with sudden events is realized, and the requirements of quick expansion and high-speed remote sensing data transmission are met.
Description
Technical Field
The invention mainly relates to the technical field of remote sensing information service, in particular to a multifunctional satellite remote sensing information intelligent service terminal.
Background
At present, the domestic portable stations mainly take Ku, C and S wave bands, business contents are mainly concentrated in the ranges of broadcast television, emergency communication, wireless rebroadcasting, remote connection and the like, the types of civil remote sensing portable ground stations which can be used for the X frequency band are fewer, the shaped portable stations are mostly used in the military field, and the cost and the practicability are difficult to be compatible with the civil products. The X-band receiving terminal has the problem of difficult portable design because of multiple functions and devices. Therefore, in order to reduce the cost, the multifunctional satellite remote sensing information intelligent service terminal is convenient to fold, detach, store and carry, widens the market with civil equipment, and is developed to be used for matching with corresponding satellite remote sensing services.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides a multifunctional satellite remote sensing information intelligent service terminal, which mainly aims to establish an emergency remote sensing information service system which can be used for quick response and deployment, and the device is convenient to carry, so that the remote sensing information service function for coping with sudden events is realized, and the requirements of quick expansion and high-speed remote sensing data transmission are met.
The invention aims to achieve the aim, and the aim is achieved by the following technical scheme:
the multifunctional satellite remote sensing information intelligent service terminal comprises a system part and a mechanical part, wherein the system part comprises a receiving subsystem, a wireless module, channel equipment, auxiliary equipment and a control terminal;
the receiving subsystem comprises an antenna assembly, a pitching turntable, a servo mechanism and a wireless control unit;
the wireless module comprises a WIFI module;
the channel equipment comprises a data transmission channel and a measurement and control channel;
the auxiliary equipment comprises a power supply module, a storage and transportation part and a foot margin assembly;
the control terminal comprises station management software and a main control computer;
the mechanical part comprises a host base, the inside cavity of host base sets up, the fixed integrated circuit that sets up in the host base bottom, the fixed rotating assembly that sets up in the bottom central point in host base puts, rotating assembly top fixed connection center body base, center body base is located host base top, first every single move arm, second every single move arm are connected in the rotation of center body base both sides face, first every single move arm passes through the motor hold-in range and rotates with center body base to be connected, first every single move arm with rotate between the every single move arm and connect the center stand, the second every single move arm passes through the motor hold-in range and rotates with the center stand to be connected, a side of center stand is fixed to set up antenna main face.
The rotating assembly comprises a horizontal rotary table, a horizontal motor, a horizontal shaft fixing claw and a rotary table flange, the horizontal rotary table drives the horizontal rotary table to rotate through the horizontal motor, the horizontal shaft fixing claw is fixedly connected with the horizontal rotary table through the rotary table flange, and handles are symmetrically arranged at the top of the host base.
The first pitching arm and the second pitching arm are fixedly provided with a shell, the inner side of the first pitching arm is close to the middle position and fixedly provided with a first pitching motor, the outer side of the first pitching arm is close to the bottom end position and is rotationally connected with a first transmission gear, the first pitching motor drives the first transmission gear to rotate through a synchronous belt, the inner side of the second pitching arm is close to the middle position and fixedly provided with a second pitching motor, the outer side of the second pitching arm is close to the top end position and is rotationally connected with a second transmission gear, and the second transmission gear penetrates through the second pitching arm and is fixedly connected with a central upright post.
The antenna main surface is made of carbon fiber materials, the antenna main surface is divided into seven parts including a central part, four corner parts and two end parts, the central part is fixedly connected with a central upright post, the central part is connected with the two end parts through a hinge, the central part and the four corner parts are detachably arranged, the side surface of the central part is fixedly connected with a secondary reflecting surface, and the other side surface of the central part is fixedly provided with a transmitter.
The four corner parts are symmetrically arranged at the top and the bottom of the central part and are connected with the convex blocks through the sliding grooves, and the central part and the four corner parts are fixed at relative positions in a mode of matching the positioning pins through the bolt holes.
Compared with the prior art, the invention has the beneficial effects that:
at present, the portable receiving terminals in the market mainly comprise Ku, C and Ka, no formed X-band portable receiving terminal product exists, and the X-band receiving terminal has the problem of difficult portable design because of multiple functions and multiple devices. The purpose of this patent is just through external structure optimization and internal circuit integration design, integrates structural function and receive function into a portable equipment, and finally realizes receiving terminal miniaturization, portability for be applied to the business of satellite data in this trade.
The terminal mechanical device has the advantages of simple structure, convenient installation and use, convenient carrying and storage, small volume and light weight; the angle between the pitching arm, the center body base and the center upright post is adjusted through the mode that the gear motor is meshed with the synchronous belt to finish folding, and the main surface of the antenna is detachable and convenient to store.
The design optimizes the circuit part of the terminal, integrates the signal processing, servo control, network function, baseband circuit, power supply distribution module and other functional circuit boards into the base host, so that the terminal can have the functions of working modes and task automatic planning, and can carry out task delivery through the wireless or wired control terminal.
Drawings
FIG. 1 is a schematic diagram of the overall composition of a system portion of the present invention;
FIG. 2 is a schematic diagram of a logic flow of a servo control portion of the present invention;
FIG. 3 is a schematic diagram of a baseband interface connection of the present invention;
FIG. 4 is a schematic diagram of a wireless transmission portion of the present invention;
FIG. 5 is a schematic of the workflow of the present invention;
FIG. 6 is a schematic diagram of an interface connection relationship of the present invention;
FIG. 7 is a schematic diagram of the components of the receiving subsystem of the present invention;
FIG. 8 is a schematic diagram of the internal interfaces of the receiving subsystem of the present invention;
FIG. 9 is a schematic diagram of the external interface of the receiving subsystem of the present invention;
FIG. 10 is a schematic diagram of the channel device composition of the present invention;
FIG. 11 is a schematic diagram of a channel device interface of the present invention;
FIG. 12 is a schematic diagram of a wireless module assembly of the present invention;
FIG. 13 is a schematic diagram of the internal interfaces of the data processing subsystem of the present invention;
FIG. 14 is a schematic diagram of the external interface of the data processing subsystem of the present invention;
FIG. 15 is a schematic diagram of a control terminal interface of the present invention;
FIG. 16 is a schematic view of the auxiliary equipment composition of the present invention;
FIG. 17 is a schematic view of the overall structure of the mechanical part of the present invention;
FIG. 18 is a schematic view of the front view of the mechanical part of the present invention;
FIG. 19 is a schematic view of the left-hand construction of a mechanical part of the present invention;
FIG. 20 is a schematic view of a first view of the transmission assembly of the present invention;
FIG. 21 is a right side elevational view of the transmission assembly of the present invention;
FIG. 22 is a schematic view of the internal structure of the base of the host computer according to the present invention;
fig. 23 is a schematic diagram of an exploded main surface structure of an antenna of the present invention.
The reference numbers shown in the drawings: 1. a host base; 2. a rotating assembly; 3. a center body base; 4. a first pitch arm; 5. a second pitch arm; 6. a central upright; 7. an antenna main surface; 8. a horizontal turntable; 9. a horizontal motor; 10. a horizontal shaft fixing claw; 11. a turntable flange; 12. a handle; 13. a housing; 14. a first pitch motor; 15. a first transmission gear; 16. a second pitch motor; 17. a second transmission gear; 18. a secondary reflecting surface; 19. a transmitter; 20. an integrated circuit; 21. a central portion; 22. four corner portions; 23. two end portions.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments. It is to be understood that these examples are illustrative of the present invention and are not intended to limit the scope of the present invention. Further, it will be understood that various changes or modifications may be made by those skilled in the art after reading the teachings of the invention, and such equivalents are intended to fall within the scope of the invention as defined herein.
1-23, a multifunctional satellite remote sensing information intelligent service terminal comprises a system part and a mechanical part, wherein the system part comprises a receiving subsystem, a wireless module, channel equipment, auxiliary equipment and a control terminal;
the receiving subsystem comprises an antenna assembly, a pitching turntable, a servo mechanism and a wireless control unit;
the wireless module comprises a WIFI module;
the channel equipment comprises a data transmission channel and a measurement and control channel;
the auxiliary equipment comprises a power supply module, a storage and transportation part and a foot margin assembly;
the control terminal comprises station management software and a main control computer;
the mechanical part comprises a host base 1, the inside cavity of host base 1 sets up, the fixed integrated circuit 20 that sets up in the host base 1, the fixed rotation subassembly 2 that sets up in the bottom central point in host base 1 puts, rotation subassembly 2 top fixed connection center body base 3, center body base 3 is located host base 1 top, first every single move arm 4, second every single move arm 5 are rotated to center body base 3 both sides face, first every single move arm 4 is rotated with center body base 3 through the motor hold-in range and is connected, first every single move arm 4 with center stand 6 is rotated between the second every single move arm 5, second every single move arm 5 is rotated with center stand 6 through the motor hold-in range and is connected, one side face of center stand 6 is fixed to set up antenna main face 7.
The rotating assembly 2 comprises a horizontal rotary table 8, a horizontal motor 9, a horizontal shaft fixing claw 10 and a rotary table flange 11, the horizontal rotary table 8 is driven to rotate by the horizontal motor 9, the horizontal shaft fixing claw 10 is fixedly connected with the horizontal rotary table 8 by the rotary table flange 11, and handles 12 are symmetrically arranged at the top of the host base 1.
The outer side surfaces of the first pitching arm 4 and the second pitching arm 5 are fixedly provided with a shell 13, the inner side surface of the first pitching arm 4 is fixedly provided with a first pitching motor 14 close to the middle position, the outer side surface of the first pitching arm 4 is rotationally connected with a first transmission gear 15 close to the bottom end position, the first pitching motor 14 drives the first transmission gear 15 to rotate through a synchronous belt, the inner side surface of the second pitching arm 5 is fixedly provided with a second pitching motor 16 close to the middle position, the outer side surface of the second pitching arm 5 is rotationally connected with a second transmission gear 17 close to the top end position, and the second transmission gear 17 passes through the second pitching arm 5 to be fixedly connected with the central upright post 6; the folding of the first tilting arm 4, the second tilting arm 5 and the antenna main surface 7 is completed by this structural design.
The antenna main surface 7 is made of carbon fiber materials, the antenna main surface 7 is divided into seven parts including a central part 21, four corner parts 22 and two end parts 23, the central part 21 is fixedly connected with the central upright post 6, the central part 21 is connected with the two end parts 23 through a hinge, the central part 21 and the four corner parts 22 are detachably arranged, the side surface of the central part 21 is fixedly connected with the auxiliary reflection surface 18, and the other side surface of the central part 21 is fixedly provided with a transmitter 19.
The four corner parts 22 are symmetrically arranged at the top and the bottom of the central part 21 and are connected with the convex blocks through sliding grooves, and the central part 21 and the four corner parts 22 are fixed in relative positions in a mode of matching positioning pins through bolt holes.
The integrated circuit 20 includes a power distribution module, an antenna controller, an ACU/ADU, a baseband processing module, an F-head output, and a power plug.
The device is matched with other auxiliary components for use, wherein the auxiliary components comprise the foundation stay bars, a storage box and a power supply module; the containing box is made of engineering plastics and lined with sponge. The servo system, the power supply system and the data processing application system inside the device can be integrated into two cases, and the whole terminal system can be stored in the storage box, so that the storage and the transportation are convenient.
When the device needs to be folded, the antenna main surface 7 is folded and disassembled and then is placed in the storage box, then a folding key on the host computer base 1 is pressed, and after the horizontal motor 9, the first pitching motor 14 and the second pitching motor 16 receive signals, the central body base 3, the first pitching arm 4 and the central upright post 6 are respectively driven to rotate, and the pitching arm is positioned at a position parallel to the host computer base 1, so that folding storage is completed. When the equipment is unfolded and arranged, after the equipment is taken out from the storage box, the chassis can be used as a base, and the four anchor supporting rods are provided with leveling bolts and can be leveled according to a level gauge on the base 1 of the host. Through external structure optimization and internal circuit integration design, the structure function and the receiving function are integrated into one portable device, and finally the miniaturization and portability of the receiving terminal are realized, so as to be matched with corresponding satellite data service.
Example 1:
the circuit of the service terminal comprises:
the circuit part is mainly a servo control part, a baseband part and a wireless connection part. The control circuit is disposed inside the base.
(1) A servo control section:
as shown in fig. 2, comprises a tracking receiver, an antenna controller ACU, an antenna driver ADU, a beidou/GPS antenna.
The current position and time are determined through an electronic compass/GPS/Beidou module, and the antenna is pointed to an initial position according to ephemeris data pre-stored in the antenna controller. The tracking receiver receives the beacon signal of the satellite, and outputs a signal to the antenna controller according to the demodulated signal when the position of the target satellite changes.
(2) Baseband section:
the FPGA selects XILINX series, the number of I/0 ports is more, the radio frequency transceiver selects AD9361, the frequency is covered between 70MHz and 6000MHz, the DSP data processor selects TMS series, the main frequency is 120MHz, the data processor is divided into a measurement and control baseband and a data transmission baseband according to different tasks, and the interface is shown in figure 3.
The measurement and control base band and the data transmission base band circuit board are arranged in the terminal base together with other control boards, and the processed data are sent into the main control computer through the high-speed modem.
(3) Wireless portion:
the wireless part comprises a routing module and a WIFI module, is integrated on a main board inside the antenna base, receives power supplied by the main board, and establishes local wireless connection through a WIFI antenna outside the base, so that the handheld computer host can be in wireless connection with the main board through wireless. In addition, a standby RJ45 interface is arranged, so that the local wired connection is changed when the WIFI network fails, and the working principle is shown in figure 4.
Example 2:
the working mode of the service terminal is as follows:
(1) telemetry mode
Before a task starts, a user issues a starting instruction to a station pipe unit in advance, reads macro parameters of the task and issues the macro parameters to related equipment; when the satellite passes through the border, the station pipe unit controls the antenna feeding unit and the servo unit to finish satellite phase correction according to the task requirement; after the system is stably tracked, the antenna feed unit receives the satellite downlink telemetry signal, and the channel equipment completes amplification, frequency conversion, demodulation, decoding and output of the downlink telemetry signal. The processed data is stored, and the personal terminal can access through wireless connection.
(2) Remote control mode
Before a task starts, a user issues a starting instruction to a station pipe unit in advance, reads macro parameters of the task and issues the macro parameters to related equipment; when the satellite passes through the border, the station pipe unit controls the antenna feeding unit and the servo unit to finish satellite phase correction according to the task requirement; after the system is stably tracked, the antenna feed unit transmits an uplink remote control signal to the satellite, and the channel equipment finishes coding, modulation, amplification and frequency conversion of the uplink remote control signal.
(3) Data transmission mode
Before a task starts, a user issues a starting instruction to a station pipe unit in advance, reads macro parameters of the task and issues the macro parameters to related equipment; when the satellite passes through the border, the station pipe unit controls the antenna feeding unit and the servo unit to finish satellite phase correction according to the task requirement; after the system is stably tracked, the antenna feed unit receives the satellite downlink data signals, and the channel equipment completes amplification, frequency conversion, demodulation and decoding output of the downlink data signals.
(4) Inter-satellite mode
Before the task starts, a user gives a starting instruction to a station pipe unit in advance, and the macro parameters and ephemeris data of the task are read; the remote satellite transmits the data processed on the satellite to the near-end satellite in a laser communication mode; and when the near-end satellite passes the border, the terminal receives the processed download signal according to the data transmission working mode. So as to achieve the purpose of long-time shooting in different places.
The working flow of the service terminal is shown in fig. 5, and the interface relation is shown in fig. 6.
Example 3:
receiving subsystem:
referring to fig. 7, 8 and 9, the processing application unit sends a control instruction of a current task to the ACU according to the pre-stored ephemeris information, the ACU generates a square wave signal for controlling the servo motor to move and sends the square wave signal to the pitching horizontal motor, and the driving motor rotates to place the antenna at a starting position. When the satellite passes through the border, the antenna receiving unit receives the measurement and control/data transmission tracking signal of the satellite, sends the measurement and control/data transmission tracking signal to the signal receiver, and then the signal receiver reaches the ACU, and closed-loop control is formed according to the change of the tracking signal, so that the purpose of precise tracking is achieved. When the satellite passes the top, the second pitching arm 5 deflects the central upright 6 by 5 ° with the normal position according to the current elevation angle, so as to eliminate the effect of the top.
Channel equipment:
referring to fig. 10 and 11, the channel device mainly comprises a low noise amplifier, a high power amplifier, an up/down converter, a measurement and control baseband, a data transmission baseband and the like. Completing low noise amplification and down-conversion of the downlink signal, and demodulating; up-modulation, frequency conversion, power amplification and other functions of the up-signal.
1) Data transmission channel
The X frequency band left-right hand polarization signal after low noise amplification is output to the down-conversion, and after the frequency conversion, the intermediate frequency signal is transmitted to the data processing part to complete the demodulation processing of the signal.
2) Measurement and control channel
a. Uplink remote control: the data processing system generates intermediate frequency data, and the intermediate frequency data is sent to the feed source for uploading through the synthetic network after passing through the X frequency band up-converter and the high power amplifier;
b. downlink telemetry: the X frequency band left-right hand polarization signal amplified by low noise is output to down-conversion, and after the down-conversion, the intermediate frequency signal is transmitted to a data processing part to complete demodulation processing of the signal; and simultaneously transmitting the antenna tracking control signals to a processing application unit for antenna tracking control.
And a wireless module:
12, 13 and 14, the WIFI module is in wireless connection locally after being started, a handheld IPAD is used as a main control computer, station management software is installed, and a control instruction is sent through the local wireless connection, so that an antenna tracks a satellite, and monitoring information of each device is received.
The internet module comprises a routing module and a WIFI module, is integrated on a main board inside the antenna base, receives power supplied by the main board, establishes local wireless connection through a WIFI antenna outside the base, and can enable the handheld computer host to be in wireless connection with the main board. In addition, a standby RJ45 interface is arranged so as to change into a local wired connection when the WIFI network fails.
And (3) a control terminal:
referring to fig. 15, the control terminal mainly comprises a main control computer and station management software. For portability and ease of operation of the terminal, a handheld PAD is selected as the host computer, equipped with station management software. The handheld PAD executes each work plan and monitoring command according to the stored ephemeris and the written three work mode control flows through the work plan issued by the local WIFI, and reports the result; the working states of all subsystem devices are monitored and managed in a unified mode; and monitoring system fault information. The control terminal consists of station management software and a main control computer, the station management unit receives work plans issued by individual users through the terminal, automatically or manually requests execution of each work plan and monitoring command, and reports the results; the method comprises the steps of adopting a server mode, connecting a personal computer through a gigabit network cable, or connecting a handheld PAD through a network module, and receiving state monitoring and control of a personal user; unified monitoring management is carried out on each subsystem; and monitoring and analyzing the system fault information.
The main control computer selects handheld PAD, built-in station management software and integrates preprocessing software such as grid recording software.
Auxiliary equipment:
referring to fig. 16, the power module mainly provides working voltage required by operation for the terminal system, and mainly comprises a power management module, a storage battery pack and a power adapter. The external 220V/110V commercial power is supplied to each part of the system by the power management module, and DC15V, DC16.9V, DC5V, DC V and other direct current outputs are provided and isolated from each other. The storage battery pack consists of 200Wh lithium batteries, and can support the emergency operation of the system for 2 hours.
The containing box is made of engineering plastics and lined with sponge. The antenna main surface is detachable in a split way, the antenna turntable is foldable, the servo system, the power supply system and the data processing application system can be integrated into two cases, and the whole terminal system can be stored in the storage box so as to be convenient for storage and transportation. When the equipment is unfolded and arranged, the chassis can serve as a base of the chassis after the equipment is taken out of the storage box.
The antenna turntable is connected with the bottom of the antenna turntable through quick connection, and four feet are provided with leveling bolts which can be used for leveling according to a level gauge on the base.
The invention mainly aims to establish an emergency remote sensing information service system capable of being deployed in a rapid response manner, so as to realize the remote sensing information service function for coping with sudden events and meet the requirements of rapid expansion and high-speed remote sensing data transmission.
The transmission rate is high and reaches 2Mbps, so the portable satellite station adopts a 1.2 meter caliber offset feed antenna, the vehicle-mounted maneuvering system can realize three functions of image transmission, voice transmission and data communication with a command center through the portable ground station.
The main design requirement of the invention is to fill the blank of the portable ground receiving terminal, designs a X, S frequency band, is mainly used for the remote sensing data transmission of medium-low orbit resource satellites, has the capability of automatically tracking satellites, and can rapidly deploy individual maneuvering terminals.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (1)
1. The utility model provides a multi-functional satellite remote sensing information intelligent service terminal, includes system part and mechanical part, its characterized in that: the system part comprises a receiving subsystem, a wireless module, channel equipment, auxiliary equipment and a control terminal;
the receiving subsystem comprises an antenna assembly, a pitching turntable, a servo mechanism and a wireless control unit;
the receiving subsystem is used for processing the control instruction of the current task to the ACU according to the pre-stored ephemeris information, the ACU generates a square wave signal for controlling the servo motor to move and sends the square wave signal to the pitching horizontal motor, and the driving motor rotates to place the antenna at the initial position; when the satellite passes through the border, the antenna receiving unit receives measurement and control/data transmission tracking signals of the satellite, sends the measurement and control/data transmission tracking signals to the signal receiver and then to the ACU, and forms closed-loop control according to the change of the tracking signals so as to achieve the tracking purpose; before the satellite passes the top, the second pitching arm (5) deflects the central upright post (6) by 5 degrees at the normal position according to the current elevation angle so as to eliminate the influence of the top;
the wireless module comprises a WIFI module;
the wireless module: after the power-on, the WIFI module realizes wireless connection locally, uses the handheld IPAD as a main control computer, installs station management software, and sends a control instruction through the local wireless connection to enable an antenna to track a satellite and simultaneously receives monitoring information of each device;
the channel equipment comprises a data transmission channel and a measurement and control channel;
the channel device: the channel equipment consists of a low noise amplifier, a high power amplifier, an up/down converter, a measurement and control baseband and a data transmission baseband; completing low noise amplification and down-conversion of the downlink signal, and demodulating; modulating, frequency converting and power amplifying the uplink signal; the data transmission baseband outputs the X frequency band left/right hand polarization signal amplified by low noise to the down-conversion, and after the down-conversion, the intermediate frequency signal is transmitted to the data processing part to complete the demodulation processing of the signal; the measurement and control baseband comprises: a. uplink remote control: the data processing system generates intermediate frequency data, and the intermediate frequency data is sent to the feed source for uploading through the synthetic network after passing through the X frequency band up-converter and the high power amplifier; b. downlink telemetry: the X frequency band left/right hand polarization signal amplified by low noise is output to down-conversion, and after the down-conversion, the intermediate frequency signal is transmitted to a data processing part to complete demodulation processing of the signal; simultaneously transmitting the antenna tracking control signals to a processing application unit for antenna tracking control;
the auxiliary equipment comprises a power supply module, a storage and transportation part and a foot margin assembly;
the control terminal comprises station management software and a main control computer;
the main control computer selects a handheld PAD as the main control computer and is provided with station management software; the handheld PAD executes each work plan and monitoring command according to the stored ephemeris and the written work mode control flow through the work plan issued by the local WIFI, and reports the result; the working states of all subsystem devices are monitored and managed in a unified mode; monitoring system fault information;
the station management software receives work plans issued by individual users through terminals, automatically or manually requests to execute the work plans and monitoring commands, and reports the results; the method comprises the steps of adopting a server mode, connecting a personal computer through a gigabit network cable, or connecting a handheld PAD through a network module, and receiving state monitoring and control of a personal user; unified monitoring management is carried out on each subsystem; monitoring and analyzing the system fault information;
the mechanical part comprises a host base (1), an integrated circuit (20) is fixedly arranged in the inside of the host base (1), a rotating assembly (2) is fixedly arranged at the central position in the inside of the host base (1), the top of the rotating assembly (2) is fixedly connected with a central body base (3), the central body base (3) is positioned at the top of the host base (1), two side surfaces of the central body base (3) are rotationally connected with a first pitching arm (4) and a second pitching arm (5), the first pitching arm (4) is rotationally connected with the central body base (3) through a motor synchronous belt, a central upright post (6) is rotationally connected between the first pitching arm (4) and the second pitching arm (5), and one side surface of the central upright post (6) is fixedly provided with an antenna main surface (7) through the motor synchronous belt;
the rotating assembly (2) comprises a horizontal rotary table (8), a horizontal motor (9), a horizontal shaft fixing claw (10) and a rotary table flange (11), the horizontal rotary table (8) is driven to rotate by the horizontal motor (9), the horizontal shaft fixing claw (10) is fixedly connected with the horizontal rotary table (8) through the rotary table flange (11), and handles (12) are symmetrically arranged at the top of the host base (1);
the device comprises a first pitching arm (4) and a second pitching arm (5), wherein a shell (13) is fixedly arranged on the outer side face of the first pitching arm (4), a first pitching motor (14) is fixedly arranged on the inner side face of the first pitching arm (4) close to the middle position, a first transmission gear (15) is rotationally connected to the outer side face of the first pitching arm (4) close to the bottom end position, the first pitching motor (14) drives the first transmission gear (15) to rotate through a synchronous belt, a second pitching motor (16) is fixedly arranged on the inner side face of the second pitching arm (5) close to the middle position, a second transmission gear (17) is rotationally connected to the outer side face of the second pitching arm (5) close to the top end position, and the second transmission gear (17) penetrates through the second pitching arm (5) to be fixedly connected with a central upright (6);
after the horizontal motor (9), the first pitching motor (14) and the second pitching motor (16) receive signals, the center body base (3), the first pitching arm (4) and the center upright post (6) are respectively driven to rotate;
the antenna main surface (7) is made of carbon fiber materials, the antenna main surface (7) is divided into seven parts including a central part (21), four corner parts (22) and two end parts (23), the central part (21) is fixedly connected with a central upright post (6), the central part (21) is connected with the two end parts (23) through a hinge, the central part (21) and the four corner parts (22) are detachably arranged, the side surface of the central part (21) is fixedly connected with a secondary reflecting surface (18), and the other side surface of the central part (21) is fixedly provided with a transmitter (19);
the four corner parts (22) are symmetrically arranged at the top and the bottom of the central part (21) and are connected with the convex blocks through sliding grooves, and the central part (21) and the four corner parts (22) are fixed at the relative positions by matching with positioning pins through bolt holes;
the circuit structure of the service terminal comprises: a servo control part, a baseband part and a wireless part;
the servo control section: the antenna comprises a tracking receiver, an antenna controller ACU, an antenna driver ADU and a Beidou/GPS antenna; determining the current position and time through an electronic compass/GPS/Beidou module, and pointing an antenna to an initial position according to ephemeris data pre-stored in an antenna controller; the tracking receiver receives the beacon signal of the satellite, and outputs a signal to the antenna controller after demodulation processing when the position of the target satellite changes;
the baseband section: the FPGA selects XILINX series, the radio frequency transceiver selects AD9361, the frequency covers between 70MHz and 6000MHz, the DSP data processor selects TMS series, the main frequency is 120MHz, and the data processor is divided into a measurement and control baseband and a data transmission baseband according to different tasks; the measurement and control baseband and the data transmission baseband circuit board are arranged in the terminal base together with other control boards, and the processed data are sent into the main control computer through the high-speed modem;
the wireless part comprises a routing module and a WIFI module, is integrated on a main board in the antenna base, receives power supplied by the main board, and establishes local wireless connection through a WIFI antenna outside the base so that the handheld computer host is in wireless connection with the main board through wireless; in addition, a standby RJ45 interface is arranged so as to change local wired connection when the WIFI network fails;
the working modes of the service terminal comprise:
telemetry mode: before a task starts, a user issues a starting instruction to a station pipe unit in advance, reads macro parameters of the task and issues the macro parameters to related equipment; when the satellite passes through the border, the station pipe unit controls the antenna feeding unit and the servo unit to finish satellite phase correction according to the task requirement; after the system is stably tracked, the antenna feed unit receives satellite downlink telemetry signals, and channel equipment completes amplification, frequency conversion, demodulation and decoding output of the downlink telemetry signals; storing the processed data, and accessing the personal terminal through wireless connection;
remote control mode: before a task starts, a user issues a starting instruction to a station pipe unit in advance, reads macro parameters of the task and issues the macro parameters to related equipment; when the satellite passes through the border, the station pipe unit controls the antenna feeding unit and the servo unit to finish satellite phase correction according to the task requirement; after the system is stably tracked, the antenna feed unit transmits an uplink remote control signal to the satellite, and the channel equipment finishes coding, modulation, amplification and frequency conversion of the uplink remote control signal;
data transmission mode: before a task starts, a user issues a starting instruction to a station pipe unit in advance, reads macro parameters of the task and issues the macro parameters to related equipment; when the satellite passes through the border, the station pipe unit controls the antenna feeding unit and the servo unit to finish satellite phase correction according to the task requirement; after the system is stably tracked, the antenna feed unit receives a satellite downlink data signal, and the channel equipment completes amplification, frequency conversion, demodulation and decoding output of the downlink data signal;
inter-satellite mode: before the task starts, a user gives a starting instruction to a station pipe unit in advance, and the macro parameters and ephemeris data of the task are read; the remote satellite transmits the data processed on the satellite to the near-end satellite in a laser communication mode; when the near-end satellite passes the border, the terminal receives the processed download signal according to the data transmission working mode; so as to achieve the purpose of long-time shooting in different places.
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| CN202310132306.1A CN115833923B (en) | 2023-02-20 | 2023-02-20 | Multifunctional satellite remote sensing information intelligent service terminal |
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| CN202310132306.1A CN115833923B (en) | 2023-02-20 | 2023-02-20 | Multifunctional satellite remote sensing information intelligent service terminal |
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| CN115833923A (en) | 2023-03-21 |
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