CN103955140A - Satellite ground remote operation demonstration verification system and realizing method thereof - Google Patents
Satellite ground remote operation demonstration verification system and realizing method thereof Download PDFInfo
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Abstract
The invention relates to a satellite ground remote operation demonstration verification system and a realizing method thereof, and belongs to the technical field of simulation. The verification system comprises a satellite dynamics simulator, a mobile terminal system, a geographic image display system and a wireless network. The satellite dynamics simulator is connected with the mobile terminal system through the wireless network, and the mobile terminal system is connected with the geographic image display system through the wireless network. The satellite ground remote operation demonstration verification system can provide a verification platform for image planning and image obtaining of a satellite constellation region, and meanwhile, can also be used for demonstrating the satellite remote operation process, therefore, the risk of space mission can be lowered and the responding time of imaging of the satellite constellation region can be shortened.
Description
technical field
The present invention relates to a kind of satellite ground distant operation demonstration and verification system and its implementation, belong to simulation technical field.
background technology
In last decade, the major natural disasters of global range frequently occur, for example: the tsunami in the Indian Ocean that on Dec 26th, 2004 occurs has caused approximately 160,000 people dead, and the special violent earthquake disaster that in May, 2008 12 China Wenchuan occurs has caused approximately 70,000 people wrecked.These disasters have caused huge casualties and property loss to disaster-stricken state.When major natural disasters occur, the facilities such as road, electric power and the communication state that will substantially paralyse.Therefore, the obtaining of disaster area disaster information, disaster relief and post-disaster reconstruction become exigence.If when disaster occurs, by tens of low-cost microsatellites of quick transmitting, and networking forms constellation to feasible region, disaster area continuous imaging, can provide in time for recovery force, information accurately, for relief, the wounded strive for the valuable time, thereby reduce the loss that information delay causes.
In recent years, no matter from politics, the economic or angle of military affairs, many countries and regions are all wished to set up asynchronous orbital region cheaply and are covered satellite system.Middle LEO satellite mobile communication system is compared with geostationary orbit, has that propagation delay is short, loss is little, launch cost is low, can effectively improve the outstanding advantages such as load resolution.The satellite group that satellite constellation is comprised of according to certain rule multi-satellite.Compare with single satellite, satellite constellation has higher covering performance, and revisit time interval is short, can meet many-sided application requirements such as communication, navigation, space exploration, hot zones imaging and scientific experiment.Space mission has that cost is high, the feature such as have a big risk, and therefore carries out on the ground fully checking and has very important significance for the successful implementation tool of task in-orbit.
summary of the invention
The present invention proposes a kind of satellite ground distant operation demonstration and verification system and its implementation.
The present invention is in order to solve the problems of the technologies described above by the following technical solutions:
The distant operation demonstration and verification of a kind of satellite ground system, comprise satellite dynamics simulator, mobile terminal system, geographical image display system and wireless network, satellite dynamics simulator is connected by wireless network with mobile terminal system, mobile terminal system is connected by wireless network with geographical image display system, wherein satellite dynamics simulator comprises satellite dynamics analog computer, image acquisition camera and camera control The Cloud Terrace, image acquisition camera is connected with satellite dynamics analog computer respectively with camera control The Cloud Terrace, geographical image display system is linked in sequence and is formed by geographical image simulation computing machine and image projector.
The implementation method of the distant operation demonstration and verification of satellite ground system, comprises the steps:
Step 1. arranges wireless network environment parameter, comprises IP address, subnet mask and default gateway;
Step 2. starts mobile terminal system, operation mobile terminal App software, add satellite and arrange or revise each satellite orbit parameter, be semi-major axis, orbit inclination, excentricity, right ascension of ascending node, argument of perigee, mean anomaly and network communication parameters, be dynamics simulation device IP address and communication port, geographical image display system IP address;
Step 3. starts satellite dynamics simulator, operation satellite dynamics simulation softward, camera control The Cloud Terrace serial ports port and baud rate, image acquisition camera port, satellite dynamics simulator UDP communication port, IP address of mobile terminal and communication port are set, wait for time and satellite orbit parameter that mobile terminal system sends;
Step 4. starts real-time geographic image display software, and geographical image display system IP address is set, and waits for time and satellite orbit parameter that mobile terminal system sends;
Step 5. selects to need the target area of imaging on mobile terminal App software, the imaging time calculating according to each satellite is selected suitable satellite, and the orbit parameter of target area longitude, latitude, current time and the satellite chosen is sent to satellite dynamics simulator and geographical image display system;
The data that the geographical image display system mobile terminal receive of step 6. flat-panel systems is sent, real-time update sub-satellite point geographic pattern and by projector by substar image projection to projection screen;
The data that step 7. satellite dynamics simulator mobile terminal receive system is sent, carry out satellite orbit recursion in real time, and calculating imaging time and the attitude of satellite needs motor-driven angle;
Step 8. is when satellite is about to through imaging region, and satellite dynamics simulator needs motor-driven angle to send instruction to camera control The Cloud Terrace according to the attitude of satellite, and the rotation of drives camera control The Cloud Terrace, makes image acquisition camera optical axis point to target area;
During step 9. satellite process imaging region, satellite dynamics simulator sends imaging instruction to image acquisition camera, and image acquisition camera is taken the substar geographic pattern by projector projects;
Step 10. satellite dynamics simulator sends to mobile terminal system by substar geographic pattern, thereby realizes the process of the distant operation of satellite constellation regional imaging.
Beneficial effect of the present invention is as follows:
(1) system architecture of the present invention is simple, cost is low.
(2) system of the present invention, the simulation of integrated satellite dynamics, surface instruction transmitting and receiving device and image simulation equipment, complete function, demonstrate convenient.
(3) method of the present invention, performing step is simple, easy operating.
accompanying drawing explanation
Fig. 1 is hardware platform connection diagram of the present invention.
Fig. 2 is that each interface of mobile terminal of the present invention is related to schematic diagram.
Fig. 3 is that mobile terminal master of the present invention logs in module interface schematic diagram.
Fig. 4 is the satellite dynamics simulator workflow schematic diagram in the present invention.
Fig. 5 is the geographical image display software configuration schematic diagram in the present invention.
Fig. 6 is mobile terminal target selection module diagram of the present invention.
Fig. 7 is the main display module interface of mobile terminal of the present invention schematic diagram.
embodiment
Below in conjunction with accompanying drawing, the invention is described in further detail.
The distant operation demonstration and verification of a kind of satellite ground of the present invention system comprises: satellite dynamics simulator, geographical image display system, mobile terminal system and wireless network environment, as shown in Figure 1.
Satellite dynamics simulator comprises the formations such as satellite dynamics analog computer, image acquisition camera, camera control The Cloud Terrace and support, and image acquisition camera is installed on camera control The Cloud Terrace by fixture, and camera control The Cloud Terrace and support are fixed.Satellite dynamics analog computer adopts common desk-top computer; Image acquisition camera adopts common industrial camera, and it is connected with satellite dynamics analog computer by usb data line, realizes camera control, image acquisition and transmission and camera power supply; Camera control The Cloud Terrace is by 12V powered by direct current, and communicates by serial ports 232 and satellite dynamics analog computer; The unlatching of satellite dynamics analog computer control camera control The Cloud Terrace and image acquisition camera and motion etc., satellite dynamics analog computer is connected into wireless network, with mobile terminal system and the networking of geographical image display system in Fig. 1.
Geographical image display system is comprised of geographical image simulation computing machine and projector.Geographical image simulation computing machine adopts common desktop computer.In order to improve the projection quality of substar image, adopt 1080p high definition projector, projector is connected with geographical image simulation computing machine.
Mobile terminal system adopts mobile terminal panel computer, and this is because mobile-terminal platform computer computing power is powerful, image processing speed is fast, screen is moderate and be convenient to that image shows, volume is little and be easy to carry.Mobile terminal panel computer carries out data transmission, instruction transmission and image passback etc. by wireless network and satellite dynamics simulator and geographical image display system.
The implementation method that the present invention proposes the distant operation demonstration and verification of a kind of satellite ground system, comprises the steps:
Step 1. arranges wireless network environment parameter, comprises IP address, subnet mask and default gateway;
Step 2. starts mobile terminal system, operation mobile terminal App software, add satellite and arrange or revise each satellite orbit parameter (comprising: semi-major axis, orbit inclination, excentricity, right ascension of ascending node, argument of perigee, mean anomaly) and network communication parameters (comprising: dynamics simulation device IP address and communication port, geographical image display system IP address);
Step 3. starts satellite dynamics simulator, operation satellite dynamics simulation softward, camera control The Cloud Terrace serial ports port and baud rate, image acquisition camera port, satellite dynamics simulator UDP communication port, IP address of mobile terminal and communication port are set, wait for time and satellite orbit parameter that mobile terminal system sends;
Step 4. starts real-time geographic image display software, and geographical image display system IP address is set, and waits for time and satellite orbit parameter that mobile terminal system sends;
Step 5. selects to need the target area of imaging on mobile terminal App software, the imaging time calculating according to each satellite is selected suitable satellite, and the orbit parameter of target area longitude, latitude, current time and the satellite chosen is sent to satellite dynamics simulator and geographical image display system;
The data that the geographical image display system mobile terminal receive of step 6. system is sent, real-time update sub-satellite point geographic pattern and by projector by substar image projection to projection screen;
The data that step 7. satellite dynamics simulator mobile terminal receive system is sent, carry out satellite orbit recursion in real time, and calculating imaging time and the attitude of satellite needs motor-driven angle;
Step 8. is when satellite is about to through imaging region, and satellite dynamics simulator needs motor-driven angle to send instruction to camera control The Cloud Terrace according to the attitude of satellite, and the rotation of drives camera control The Cloud Terrace, makes image acquisition camera optical axis point to target area;
During step 9. satellite process imaging region, satellite dynamics simulator sends imaging instruction to image acquisition camera, and image acquisition camera is taken the substar geographic pattern by projector projects;
Step 10. satellite dynamics simulator sends to mobile terminal system by substar geographic pattern, thereby realizes the process of the distant operation of satellite constellation regional imaging.
In described step 1, wireless network environment parameter is set, for the networking of the mobile terminal system in Fig. 1 and geographical image display system provides communication benchmark.
In described step 2, mobile terminal employing panel computer is realized, and mobile terminal App software adopts Android software development program to develop, the size of the adaptive flat board of software interface and mobile phone, software development in the operating system of Android 4.3, backward compatible earlier version in theory.As shown in Figure 2, network communication parameters debugging realizes with being arranged on main logging in module each interface relation of App software, as shown in Figure 3.
In described step 3, satellite dynamics simulation softward mainly adopts American National instrument LabVIEW software and VC++ software development.LabVIEW has good multi-thread programming ability and powerful hardware supported ability.Satellite dynamics simulation softward comprises simulator interactive interface and simulator program two large divisions.Simulator interactive interface is divided into two parts: satellite situation 3d orbit demonstration in orbit, parameter designing and result display window.Parameter setting comprises serial ports, the configuration of image acquisition camera parameter, and emulation initial parameter arranges.Simulator program block diagram mainly comprises five major parts: Satellite Orbital Attitude recursion and control block diagram, 3-D display block diagram, cradle head control block diagram, camera control block diagram and serial ports control block diagram.The workflow of satellite dynamics simulation softward as shown in Figure 4.
In described step 4, geographical image display software adopts the C# exploitation of Microsoft, has called UDP communication module.Geographical image display software interface as shown in Figure 5.Dynamic image software for display calls the API of Google Earth, substar longitude and latitude, highly automated deduction that its image calculates according to the track six roots of sensation number of satellite.When mobile terminal does not send orbital data, user can arrange orbit parameter voluntarily, and recursion operation.The display interface of software offers satellite dynamics simulator image acquisition camera by projector and takes use.
In described step 5, objective area longitude and latitude is selected to be realized by Fig. 6 mobile terminal target selection module, and the module that task and orbit parameter send in Fig. 7 realizes.
In described step 6, when mobile terminal sends after orbital data, geographical image display system is the automatic orbit parameter recursion to receive, calculates in real time substar longitude and latitude and the height of satellite, call Google Earth map, and by substar image projection to projection screen.
In described step 7, when mobile terminal sends after orbital data, orbit parameter, orbit parameter corresponding time and the objective area longitude and latitude of satellite dynamics simulator to receive, carries out Orbit simulation, satellite in real time through imaging region time t prediction, the calculating of imaging attitude maneuver angle [alpha].
In described step 8, according to the attitude maneuver angle calculating in step 7 and the motor-driven angular speed constraint of satellite, estimation satellite carries out side-sway automotive and attitude stabilization required time Δ t, at t-Δ t constantly, according to attitude maneuver angle [alpha], calculate attitude control moment, the attitude of satellite is controlled.According to attitude of satellite angle and angular velocity, form cradle head control instruction, and send to cradle head controllor, drive cloud platform rotation, make image acquisition camera optical axis point to target area.
In described step 9, through t, after the time, satellite dynamics simulator sends programmed instruction to image acquisition camera, opens camera the substar image being provided by geographical image display system is provided.
In described step 10, after substar Image Acquisition success, satellite dynamics simulator by wireless network by image transmitting to mobile terminal, and check for user, the module that image receives in Fig. 7 realizes.
Claims (2)
1. the distant operation demonstration and verification of a satellite ground system, it is characterized in that, comprise satellite dynamics simulator, mobile terminal system, geographical image display system and wireless network, satellite dynamics simulator is connected by wireless network with mobile terminal system, mobile terminal system is connected by wireless network with geographical image display system, wherein satellite dynamics simulator comprises satellite dynamics analog computer, image acquisition camera and camera control The Cloud Terrace, image acquisition camera is connected with satellite dynamics analog computer respectively with camera control The Cloud Terrace, geographical image display system is linked in sequence and is formed by geographical image simulation computing machine and projector.
2. the implementation method of the distant operation demonstration and verification of satellite ground according to claim 1 system, is characterized in that, comprises the steps:
Step 1. arranges wireless network environment parameter, comprises IP address, subnet mask and default gateway;
Step 2. starts mobile terminal system, operation mobile terminal App software, add satellite and arrange or revise each satellite orbit parameter, be semi-major axis, orbit inclination, excentricity, right ascension of ascending node, argument of perigee, mean anomaly and network communication parameters, be dynamics simulation device IP address and communication port, geographical image display system IP address;
Step 3. starts satellite dynamics simulator, operation satellite dynamics simulation softward, camera control The Cloud Terrace serial ports port and baud rate, image acquisition camera port, satellite dynamics simulator UDP communication port, IP address of mobile terminal and communication port are set, wait for time and satellite orbit parameter that mobile terminal system sends;
Step 4. starts real-time geographic image display software, and geographical image display system IP address is set, and waits for time and satellite orbit parameter that mobile terminal system sends;
Step 5. selects to need the target area of imaging on mobile terminal App software, the imaging time calculating according to each satellite is selected suitable satellite, and the orbit parameter of target area longitude, latitude, current time and the satellite chosen is sent to satellite dynamics simulator and geographical image display system;
The data that the geographical image display system mobile terminal receive of step 6. flat-panel systems is sent, real-time update sub-satellite point geographic pattern and by projector by substar image projection to projection screen;
The data that step 7. satellite dynamics simulator mobile terminal receive system is sent, carry out satellite orbit recursion in real time, and calculating imaging time and the attitude of satellite needs motor-driven angle;
Step 8. is when satellite is about to through imaging region, and satellite dynamics simulator needs motor-driven angle to send instruction to camera control The Cloud Terrace according to the attitude of satellite, and the rotation of drives camera control The Cloud Terrace, makes image acquisition camera optical axis point to target area;
During step 9. satellite process imaging region, satellite dynamics simulator sends imaging instruction to image acquisition camera, and image acquisition camera is taken the substar geographic pattern by projector projects;
Step 10. satellite dynamics simulator sends to mobile terminal system by substar geographic pattern, thereby realizes the process of the distant operation of satellite constellation regional imaging.
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| CN113608244A (en) * | 2021-07-27 | 2021-11-05 | 中国科学院微小卫星创新研究院 | Space gravitational wave detection satellite constellation ground demonstration verification system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113608244A (en) * | 2021-07-27 | 2021-11-05 | 中国科学院微小卫星创新研究院 | Space gravitational wave detection satellite constellation ground demonstration verification system |
| CN113608244B (en) * | 2021-07-27 | 2023-12-29 | 中国科学院微小卫星创新研究院 | Space gravitational wave detection satellite constellation ground demonstration verification system |
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