Remote sensing load principle teaching simulation system

Abstract

The invention discloses a remote sensing load principle teaching simulation system, which belongs to the technical field of teaching devices and comprises an optical simulation remote sensing satellite, a temperature control scene simulator, a mobile scene simulator, ground quantitative remote sensing information acquisition equipment and an image acquisition and control system. The optical simulation remote sensing satellite, the temperature control scene simulator, the mobile scene simulator and the ground quantitative remote sensing information acquisition device are all in communication connection with the image acquisition and control system.

Description

Technical Field

[0001] The invention belongs to the technical field of teaching devices, and in particular relates to a remote sensing load principle teaching simulation system. Background Art

[0002] Satellite remote sensing technology is a comprehensive technology that uses artificial satellites as a platform to acquire, transmit, process, and analyze information about the Earth and its surrounding environment. It is widely used in related fields such as my country's national economy and national defense. The enrollment scale of remote sensing-related majors in domestic and foreign universities has grown rapidly. Currently, many domestic higher education institutions have launched relevant professional courses based on remote sensing principles and applications. The surge in demand for remote sensing practical teaching and the adaptation difficulties between technical tools have always existed. The courses of the Remote Sensing Science and Technology major are highly practical and applied. During the teaching process, through real-life teaching, interactive teaching, and the combination of theory and practice, students are guided to actively participate in the practical teaching process, giving full play to the students' main role, helping students better master the core knowledge and skills of remote sensing technology, and cultivating their hands-on ability, innovation ability, and problem-solving ability.

[0003] Satellite remote sensing technology acquires ground object information through non-contact electromagnetic wave detection. Its core components include remote sensing payloads, remote sensing platforms, and data transmission and processing systems. The payload is a key device for acquiring remote sensing data. As a crucial physical component for acquiring image data, current practical teaching of remote sensing principles often relies on field collection or the use of readily available remote sensing data. However, these methods have limitations. Field collection can be limited by weather, cost, and safety factors, making it difficult to organize, especially for large student groups. Furthermore, some equipment is complex to operate, hindering efficient teaching implementation. While using readily available data for data preprocessing and information extraction via virtual simulation platforms or remote sensing image processing software is convenient, students are unable to experience the data collection process and lack a practical understanding of satellite data acquisition, sensor parameter adjustment, and environmental impacts. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a remote sensing load principle teaching simulation system.

[0005] The present invention integrates satellite technology, payload imaging principles and application scenarios into a physical system for simulating satellite remote sensing payloads, forming an intuitive practical environment that integrates virtual and real elements. Through immersive operation, debugging and operation, students can directly participate in the remote sensing data acquisition process under simulated application scenarios, observe the various components of the satellite remote sensing payload and the interactions between them, better grasp the principles of satellite remote sensing imaging, and through the collaboration of physical devices and simulation systems, enhance students' understanding of the entire process from remote sensing data acquisition, transmission to processing.

[0006] To achieve the above object, the technical solution adopted by the present invention is: A remote sensing payload principle teaching simulation system includes an optical simulation remote sensing satellite, a temperature-controlled scene simulator, a mobile scene simulator, a ground quantitative remote sensing information acquisition device, and an image acquisition and control system. The optical simulation remote sensing satellite, the temperature-controlled scene simulator, the mobile scene simulator, and the ground quantitative remote sensing information acquisition device are all communicatively connected to the image acquisition and control system.

[0007] Preferably, the optical simulation remote sensing satellite includes a simulated remote sensing satellite, the bottom of the simulated remote sensing satellite is provided with an adjustment mechanism for adjusting the roll angle, pitch angle and focal length of the simulated remote sensing satellite, and the bottom of the adjustment mechanism is provided with a support mechanism for supporting the simulated remote sensing satellite and the adjustment mechanism.

[0008] Preferably, the simulated remote sensing satellite includes a telephoto imaging unit, a visible short-focus imaging unit, an infrared short-focus imaging unit, a satellite cabin, two solar wings and two digital transmission antennas. The telephoto imaging unit, the visible short-focus imaging unit and the infrared short-focus imaging unit are respectively arranged inside the satellite cabin, and the two solar wings are respectively symmetrically arranged on the left and right sides of the satellite cabin, and the two digital transmission antennas are respectively symmetrically arranged on the rear side of the satellite cabin.

[0009] Preferably, the adjustment mechanism includes a first adjustment unit for adjusting the focal length of the simulated remote sensing satellite, a second adjustment unit for adjusting the side swing angle of the simulated remote sensing satellite, and a third adjustment unit for adjusting the pitch angle of the simulated remote sensing satellite. The bottom of the first adjustment unit is connected to the supporting mechanism, the second adjustment unit is arranged on the top of the first adjustment unit, and the third adjustment unit is arranged on the top of the second adjustment unit.

[0010] Preferably, the mobile scene simulator includes a mobile target, a lighting lamp and a projector, the lighting lamp and the projector are respectively located in the front side of the mobile target, the mobile target includes a transmission mechanism, a bracket, a remote sensing image scroll and a projection mechanism used in conjunction with the projector, the transmission mechanism is respectively connected to the bracket and the remote sensing image scroll, and the projection mechanism is arranged on the front side of the remote sensing image scroll.

[0011] Preferably, the temperature-controlled scene simulator includes a background substrate, a three-dimensional target, a temperature control mechanism and a bracket, wherein the bracket is arranged at the bottom of the background substrate, the three-dimensional target is arranged on the front side of the background substrate, and the temperature control mechanism is arranged on the rear side of the background substrate.

[0012] Preferably, the three-dimensional target includes multiple simulators, multiple real target simulators and multiple fake target simulators, each simulator is provided with a second magnetic layer, each simulator is adsorbed and connected to the first magnetic layer on the background substrate through the second magnetic layer, and the multiple real target simulators and the multiple fake target simulators are all connected to the front side of the background substrate.

[0013] Preferably, the temperature control mechanism includes a temperature controller, multiple refrigerators, multiple heating plates and multiple heating rods, the multiple refrigerators and multiple heating plates are respectively arranged on the rear side of the background substrate, the multiple heating rods are respectively arranged inside the real target simulation object, the temperature controller is arranged on the bracket, and the multiple refrigerators, multiple heating plates and multiple heating rods are respectively connected to the temperature controller.

[0014] Preferably, the image acquisition and control system comprises a back-end comprehensive information database and a front-end operating system; The back-end comprehensive information database stores satellite remote sensing data acquired by the optical simulation remote sensing satellite and target spectral feature data acquired by the ground quantitative remote sensing information acquisition unit; The front-end operating system adjusts the roll angle, pitch angle and orbital altitude of the optical simulation remote sensing satellite by adjusting the operating parameters, adjusts the movement speed of the three-dimensional target in the mobile scene simulator by adjusting the operating parameters, and adjusts the temperature of the three-dimensional target in the temperature-controlled scene simulator by adjusting the operating parameters.

[0015] Preferably, the front-end operating system includes a login interface and a menu selection and control interface, the operating parameters are distributed on the menu selection and control interface, and the menu selection and control interface is set on the login interface; the menu selection and control interface includes a parameter configuration control module and a view display module; The parameter configuration control module includes a motion parameter control module, a visible light camera parameter setting module, an infrared camera lens parameter control module, a visible light camera lens parameter control module, an infrared camera control module and a visible light camera control module; The motion parameter control module adjusts the roll angle, pitch angle and focal length of the optical simulation remote sensing satellite by adjusting the orbit parameters and target parameters, and adjusts the position of the three-dimensional target; The visible light camera parameter setting module is used to adjust the camera parameters of the long-focus imaging unit and the visible short-focus imaging unit; The infrared camera lens parameter control module realizes focusing of the long-focus imaging unit and the infrared short-focus imaging unit by adjusting the configuration parameters of the camera; The visible light camera lens parameter control module realizes focusing of the long-focus imaging unit and the visible short-focus imaging unit by adjusting the configuration parameters of the camera; The infrared camera control module is used to control the long-focus imaging unit and the infrared short-focus imaging unit to shoot videos and photos and read data; The visible light camera control module is used to control the long-focus imaging unit and the visible short-focus imaging unit to shoot videos and photos and read data; The view display module includes an infrared image display module, a visible light image display module, an infrared camera operating status display module, and a visible light camera operating status display module; The infrared image display module is used to preview and display the imaging images of the long-focus imaging unit and the infrared short-focus imaging unit; The visible light image display module is used to preview and display the imaging images of the long-focus imaging unit and the visible short-focus imaging unit; The infrared camera operating status display module is used to display the operating status of the long-focus imaging unit and the infrared short-focus imaging unit; The visible light camera operating status display module is used to display the operating status of the long-focus imaging unit and the visible short-focus imaging unit.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) This invention integrates satellite technology, principles, and application scenarios by simulating real objects with satellite remote sensing payloads, and constructs a practical teaching environment of "real object manipulation - imaging simulation - scene analysis". The system covers a satellite simulation platform, interactive data acquisition, application scenario simulator, and information collection equipment. Through the collaboration of physical devices and digital technology, immersive teaching of the full-process operation mechanism of optical remote sensing satellites is achieved; (2) This invention solves the problem of incomplete data acquisition and information processing application links in the teaching practice of remote sensing principles. Through practical operation, debugging, and operation, students can intuitively participate in the entire process from remote sensing data acquisition to information processing, forming a full-link simulation mechanism and realizing a teaching-level closed loop of satellite operation, payload control, and data generation and processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the structure of an optical simulation remote sensing satellite in an embodiment of the present invention; Figure 2 for Figure 1 A partial enlarged schematic diagram of part A in the middle; Figure 3 for Figure 1 A partial enlarged cross-sectional view of part A in the middle; Figure 4 It is a right view of the optical simulation remote sensing satellite in an embodiment of the present invention; Figure 5 for Figure 4 A partial enlarged schematic diagram of part B in the middle; Figure 6 A top view of a simulated remote sensing satellite in an embodiment of the present invention; Figure 7 Schematic diagram of the structure of a telephoto imaging unit in an embodiment of the present invention; Figure 8 is a cross-sectional view of a telephoto imaging unit in an embodiment of the present invention; Figure 9 Schematic diagram of the structure of a visible short-focus imaging unit in an embodiment of the present invention; Figure 10 Schematic diagram of the structure of an infrared short-focus imaging unit in an embodiment of the present invention; Figure 11 Schematic diagram of the structure of a mobile scene simulator in an embodiment of the present invention; Figure 12 is a left view of the moving scene simulator in an embodiment of the present invention; Figure 13 Schematic diagram of the connection structure between the transmission mechanism and the bracket in an embodiment of the present invention; Figure 14 Schematic diagram of the internal structure of the projection mechanism in an embodiment of the present invention; Figure 15 Schematic diagram of the structure of a temperature-controlled scene simulator in an embodiment of the present invention; Figure 16 4 is a left view of the temperature-controlled scene simulator in an embodiment of the present invention; Figure 17 for Figure 16 A partial enlarged schematic diagram of part A in the middle; Figure 18 is a rear view of the temperature-controlled scene simulator in an embodiment of the present invention; Figure 19 A framework diagram of a remote sensing payload principle teaching simulation system provided by an embodiment of the present invention; Figure 20 A flowchart of the remote sensing payload principle teaching simulation system provided by an embodiment of the present invention; Figure 21 Schematic diagram of the composition of the infrared focal plane circuit or the visible focal plane circuit in an embodiment of the present invention; Figure 22 is a diagram of the internal working process of the infrared focal plane circuit or the visible focal plane circuit in an embodiment of the present invention; Figure 23 This is a diagram of the login interface of the image acquisition and control system in an embodiment of the present invention; Figure 24 This is a diagram of the main interface of the image acquisition and control system in an embodiment of the present invention; Figure 25This is a video playback interface diagram of the image acquisition and control system in an embodiment of the present invention; Figure 26 This is a diagram of a parameter setting interface for an image acquisition and control system according to an embodiment of the present invention; Figure 27 This is a diagram showing the operation interface of the motion parameter control module of the image acquisition and control system in an embodiment of the present invention; Figure 1: Simulated remote sensing satellite; 2: Adjustment mechanism; 3: Support mechanism; 4: Telephoto imaging unit; 5: Visible short-focus imaging unit; 6: Infrared short-focus imaging unit; 7: Satellite cabin; 8: Solar wing; 9: Digital transmission antenna; 10: Light inlet; 11: First adjustment unit; 12: Second adjustment unit; 13: Third adjustment unit; 14: Sliding guide rail; 15: Screw; 16: Sliding block; 17: First motor; 18: Mounting base; 19: Second motor. 20. Rotating cylinder; 21. Rotating plate; 22. First U-shaped connecting plate; 23. Second U-shaped connecting plate; 24. Third motor; 25. Rotating shaft; 26. Support frame; 27. First universal wheel; 28. Fixed support leg; 29. ​​Connecting block; 30. Support screw; 31. Mounting cylinder; 32. Light shield; 33. Bearing plate; 34. Visible channel; 35. Infrared channel; 36. Infrared focal plane circuit; 37. Visible focal plane circuit; 38. Focusing mechanism; 39. Primary reflector; 40, secondary reflector; 41, tilting plate; 42, infrared lens; 43, visible lens; 44, first camera fixing tube; 45, visible short-focus lens; 46, second camera fixing tube; 47, infrared short-focus lens; 101, moving target; 102, lighting lamp; 103, projector; 104, bracket; 105, remote sensing image scroll; 106, first roller; 107, second roller; 108, fourth motor; 109, mounting housing ; 110, rotating shaft; 111, curtain; 112, fifth motor; 113, indoor wall; 201, background substrate; 202, three-dimensional target; 2021, simulator; 2022, real target simulation; 2023, fake target simulation; 2024, second magnetic layer; 203, bracket; 204, first magnetic layer; 205, temperature controller; 206, refrigerator; 207, heating plate; 208, background area; 209, second universal wheel. DETAILED DESCRIPTION

[0018] The following is a summary of the embodiments of the present invention. Figures 1 to 27 The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0019] like Figure 19 and Figure 20 As shown, an embodiment of the present invention provides a remote sensing payload principle teaching simulation system, comprising an optical simulation remote sensing satellite, a temperature-controlled scene simulator, a mobile scene simulator, ground-based quantitative remote sensing information acquisition equipment, and an image acquisition and control system. The optical simulation remote sensing satellite, temperature-controlled scene simulator, mobile scene simulator, and ground-based quantitative remote sensing information acquisition equipment are all communicatively connected to the image acquisition and control system. In this embodiment of the present invention, the temperature-controlled scene simulator and the mobile scene simulator are collectively referred to as a scene simulator, while the scene simulator, optical simulation remote sensing satellite, and image acquisition and control system are collectively referred to as an optical payload principle teaching system.

[0020] The remote sensing payload principle teaching simulation system provided by the embodiment of the present invention is mainly used for simulating optical remote sensing imaging systems in the visible and infrared bands and demonstrating aerospace remote sensing payload imaging. It provides students with intuitive payload principle teaching demonstrations and operational image acquisition and processing, simulates the on-orbit imaging scene of aerospace remote sensing payload, and uses ground remote sensing data acquisition equipment to detect the visible light and infrared spectral radiation information of ground target objects and environmental meteorological information to support data processing, which can be used for teaching demonstrations and experimental verification. In addition, the embodiment of the present invention realizes visible light and infrared imaging of two scenes formed by a real scene in a long-distance outdoor environment and a temperature-controlled scene simulator and a mobile scene simulator in a laboratory environment through the long-focus imaging unit 4, the visible short-focus imaging unit 5, and the infrared short-focus imaging unit 6 of the optical simulation remote sensing satellite. The image acquisition and control system provides the working status and telemetry data display of the optical simulation remote sensing satellite, as well as the acquisition and display of visible light and infrared images. The temperature-controlled scene simulator and the mobile scene simulator provide two target simulation scenes of visible light and infrared in a laboratory environment.

[0021] The ground quantitative remote sensing information acquisition equipment in the embodiment of the present invention can collect visible and infrared spectral radiation information and environmental meteorological information of the target object, and specifically includes 1 field object spectrometer, 6 handheld spectrometers, 1 infrared spectroradiometer, 10 reflection measurement reference plates and 1 meteorological collection station.

[0022] In the embodiment of the present invention, Figure 1 、 Figure 4 and Figure 6 As shown, the optical simulation remote sensing satellite includes a simulation remote sensing satellite 1, and an adjustment mechanism 2 for adjusting the roll angle, pitch angle and focal length of the simulation remote sensing satellite 1 is provided at the bottom of the simulation remote sensing satellite 1, and a supporting mechanism 3 for supporting the simulation remote sensing satellite 1 and the adjustment mechanism 2 is provided at the bottom of the adjustment mechanism 2.

[0023] The simulated remote sensing satellite 1 includes a long-focus imaging unit 4, a visible short-focus imaging unit 5, an infrared short-focus imaging unit 6, a satellite cabin 7, two solar wings 8, and two digital transmission antennas 9. The long-focus imaging unit 4, the visible short-focus imaging unit 5, and the infrared short-focus imaging unit 6 are respectively arranged inside the satellite cabin 7. In this embodiment, the long-focus imaging unit 4, the visible short-focus imaging unit 5, and the infrared short-focus imaging unit 6 are specifically fixedly mounted on the bottom inner wall of the satellite cabin 7, and the rear side of the satellite cabin 7 is openable. The two solar wings 8 are symmetrically mounted on the left and right sides of the satellite cabin 7, respectively, and the two digital transmission antennas 9 are symmetrically arranged on the rear side of the satellite cabin 7. The solar wings 8 and digital transmission antennas 9 in this embodiment are simulated parts that only show the appearance of the satellite and have no actual function. To reduce the weight of the simulated satellite, the solar wings 8 and the digital transmission antennas 9 are both made of plastic materials. The visible short-focus imaging unit 5 and the infrared short-focus imaging unit 6 are collectively referred to as short-focus imaging units.

[0024] The telephoto imaging unit 4 in this embodiment is used for outdoor imaging, specifically, using two imaging channels to achieve visible light and infrared imaging; while the visible short-focus imaging unit 5 and the infrared short-focus imaging unit 6 are used for indoor target imaging. Specifically, the visible short-focus imaging unit 5 is used for visible light imaging of indoor targets, while the infrared short-focus imaging unit 6 is used for infrared imaging of indoor targets. When the optical simulation remote sensing satellite of this embodiment shifts from indoor imaging to outdoor imaging, it supports the interchange of the focal planes of the long and short focus lenses. This requires removing the focal plane circuits on the visible short-focus imaging unit 5 and the infrared short-focus imaging unit 6 from the short-focus lenses and replacing them with the long-focus lens of the telephoto imaging unit 4. The specific operation process is as follows: the rear side of the satellite cabin 7 is opened, and then the focal plane circuits on the short-focus imaging unit 5 and the infrared short-focus imaging unit 6 are removed from the short-focus lenses and installed on the long-focus lens of the telephoto imaging unit 4. The wires of the telephoto imaging unit 4, the visible short-focus imaging unit 5, and the infrared short-focus imaging unit 6 are pulled out to the outside of the satellite cabin 7 through the rear side of the satellite cabin 7.

[0025] like Figure 7 and Figure 8As shown, in this embodiment, the telephoto imaging unit 4 includes a mounting tube 31, a light shield 32, a bearing plate 33, a visible channel 34, an infrared channel 35, an infrared focal plane circuit 36, a visible focal plane circuit 37 and two focusing mechanisms 38. The bearing plate 33 is vertically fixedly mounted on the bottom inner wall of the satellite cabin 7. The mounting tube 31 is fixedly connected to the bearing plate 33, and the mounting tube 31 passes through the bearing plate 33. The light shield 32 is fixedly sleeved on the front end surface of the mounting tube 31. The infrared channel 35 is fixedly connected and mounted on the rear side surface of the mounting tube 31. The visible channel 34 is vertically connected to the infrared channel 35. The two focusing mechanisms 38 are fixedly sleeved on the front end surface of the mounting tube 31. Mechanism 38 is connected to the rear ends of visible channel 34 and infrared channel 35 respectively. Infrared focal plane circuit 36 ​​and visible focal plane circuit 37 are detachably connected to focusing mechanism 38 on infrared channel 35 and visible channel 34 respectively through flanges. The focusing mechanism 38 in this embodiment adopts 7STM02125 micro displacement platform developed by Saifan Optoelectronics. The visible focal plane circuit 37 uses imported large pixel size focal plane circuit to ensure image quality. The sensor type of visible focal plane circuit 37 is sCMOS, and the sensor type of infrared focal plane circuit 36 ​​is imported vanadium oxide non-cooled infrared focal plane detector, which has clear image. The structure and working process of infrared focal plane circuit 36 ​​and visible focal plane circuit 37 in the embodiment of the present invention are the same. Specifically, infrared focal plane circuit 36 ​​and visible focal plane circuit 37 both include imaging unit, control unit and interface unit, such as Figure 21 As shown, the imaging unit is responsible for photoelectric conversion; the control unit is responsible for data and control; and the interface unit is responsible for camera data transmission.

[0026] The interior of the mounting tube 31 is provided with a primary reflector 39 and a secondary reflector 40 parallel to each other. The interior of the connection between the visible channel 34 and the infrared channel 35 is provided with an inclined plate 41 with an inclination angle of 45°. Three infrared lenses 42 are provided inside the infrared channel 35, and three visible lenses 43 are provided inside the visible channel 34. In this embodiment, the primary reflector 39 and the secondary reflector 40 are both made of 6061 fast-condensing aluminum material. The diameter of the primary reflector 39 is φ186 mm, and the effective light-transmitting diameter is φ180 mm. The diameter of the secondary reflector 40 is Φ67 mm, and the light-transmitting diameter is φ65.4 mm. like Figure 22As shown, when the optical simulation remote sensing satellite of this embodiment is located outdoors, the reflected light of the photographed object is reflected by the primary reflector 39 and the secondary reflector 40 in sequence, and then separated into visible light and long-wave infrared light by the tilting plate 41. The visible light and infrared light then enter the interior of the visible channel 34 and the infrared channel 35 respectively, and are corrected for off-axis aberrations by three visible lenses 43 and three infrared lenses 42 respectively. The light is then transmitted to the interior of the visible focal plane circuit 37 and the infrared focal plane circuit 36 ​​respectively, and focused on the focal plane of the CMOS image sensor to form an image. The CMOS image sensor converts the received light signal into an electrical signal through photoelectric conversion, performs data processing and control (gain, analog-to-digital conversion, parallel-to-serial conversion, etc.), converts it into a standard LVDS signal, and outputs it to the control chip FPGA. The FPGA processes and controls the received image data (serial-to-parallel conversion, decoding, processing, rearrangement, etc.), converts it into an LVTTL signal, and outputs it to the GE interface unit. The GE interface unit converts the data into a network signal with a standard GE protocol and transmits it to the computer of the network card via a network cable.

[0027] like Figure 9 and Figure 10 As shown, in this embodiment, the visible short-focus imaging unit 5 includes a first camera fixing barrel 44, a visible short-focus lens 45 and a visible focal plane circuit 37. The first camera fixing barrel 44 is fixedly mounted on the bottom inner wall of the satellite cabin 7, the visible short-focus lens 45 is arranged inside the first camera fixing barrel 44, and the visible focal plane circuit 37 is connected to the rear side of the first camera fixing barrel 44 through a flange. The infrared short-focus imaging unit 6 includes a second camera fixing barrel 46, an infrared short-focus lens 47 and an infrared focal plane circuit 36. The second camera fixing barrel 46 is fixedly mounted on the bottom inner wall of the satellite cabin 7, the infrared short-focus lens 47 is arranged inside the second camera fixing barrel 46, and the infrared focal plane circuit 36 ​​is detachably connected to the rear side of the second camera fixing barrel 46 through a flange. Specifically, the visible short-focus lens 45 in this embodiment adopts an existing visible C-mount adjustable focus lens, covering 25~75 mm focal length (the image plane is not less than 1"), the specific parameters are shown in Table 1 below, and the infrared short-focus lens 47 in this embodiment adopts the existing long-wave infrared adjustable focus lens, covering a focal length of 35~150mm (the image plane is not less than 2 / 3"). In specific implementation, since the visible short-focus imaging unit 5 and the infrared short-focus imaging unit 6 do not work at the same time as the long-focus imaging unit 4, only the visible short-focus imaging unit 5 and the infrared short-focus imaging unit 6 are used for indoor imaging, and only the long-focus imaging unit 4 is used for outdoor imaging. Therefore, the visible short-focus imaging unit 5 and the infrared short-focus imaging unit 6 in this embodiment share the visible focal plane circuit 37 and the infrared focal plane circuit 36 ​​with the long-focus imaging unit 4 respectively. In specific applications, the focal plane circuits on the visible short-focus imaging unit 5 and the infrared short-focus imaging unit 6 can be removed from the short-focus lens and replaced on the long-focus lens of the long-focus imaging unit 4.

[0028]

[0029] The front side of the satellite module 7 is provided with light inlets 10 for providing light to the telephoto imaging unit 4, the visible short-focus imaging unit 5, and the infrared short-focus imaging unit 6. The three light inlets 10 in this embodiment allow external light to enter the interior of the satellite module 7 through the three light inlets 10, providing light for the lenses of the telephoto imaging unit 4, the visible short-focus imaging unit 5, and the infrared short-focus imaging unit 6.

[0030] like Figure 4 As shown, in this embodiment, the adjustment mechanism 2 includes a first adjustment unit 11 for adjusting the orbital height of the simulated remote sensing satellite 1, a second adjustment unit 12 for adjusting the side swing angle of the simulated remote sensing satellite 1, and a third adjustment unit 13 for adjusting the pitch angle of the simulated remote sensing satellite 1. The bottom of the first adjustment unit 11 is connected to the supporting mechanism 3, the second adjustment unit 12 is arranged on the top of the first adjustment unit 11, and the third adjustment unit 13 is arranged on the top of the second adjustment unit 12.

[0031] like Figure 2 、 Figure 3 and Figure 5 As shown, the first adjustment unit 11 in this embodiment specifically includes a sliding guide rail 14, a screw 15, a sliding block 16 and a first motor 17. The sliding guide rail 14 and the first motor 17 are arranged at the top of the support mechanism 3. The two ends of the screw 15 are respectively rotatably connected to the sliding guide rail 14 through bearings. The bottom of the sliding block 16 is slidably connected to the sliding guide rail 14, and the top is connected to the second adjustment unit 12. Due to the limiting effect of the sliding guide rail 14 on the sliding block 16, when the screw 15 rotates, the sliding block 16 cannot rotate with the screw 15, but can only slide along the screw 15 and the sliding guide rail 14; the sliding block 16 is threadedly connected to the screw 15, and the output shaft of the first motor 17 is fixedly connected to one end of the screw 15.

[0032] When it is necessary to adjust the orbital height of the simulated remote sensing satellite 1, the orbital height parameters of the simulated remote sensing satellite 1 can be adjusted in the motion parameter control module, and then the first motor 17 is started by using the image acquisition and control system to drive the screw 15 to rotate synchronously, so that the sliding block 16 moves back and forth along the screw 15 and the sliding guide rail 14, thereby adjusting the observation distance of the simulated remote sensing satellite 1 relative to the target; further, the sliding guide rail in this embodiment is provided with a scale for marking the moving distance of the sliding block 16, and the setting of the scale can facilitate knowing whether the orbital position is adjusted.

[0033] like Figure 2 and Figure 3As shown, in this embodiment, the second adjusting unit 12 specifically includes a mounting seat 18, a second motor 19, a rotating cylinder 20 and a rotating plate 21. The mounting seat 18 is connected to the top of the first adjusting unit 11, specifically, the mounting seat 18 is connected to the top of the sliding block 16, the second motor 19 is arranged on the top of the mounting seat 18, the rotating cylinder 20 is sleeved on the top of the second motor 19, and the bottom of the rotating plate 21 is connected to the second motor 19, specifically, the output shaft of the second motor 19 in this embodiment is fixedly connected to the bottom of the rotating plate 21, and the rotating plate 21 is a circular plate, the outer diameter of the rotating plate 21 matches the inner diameter of the rotating cylinder 20, the rotating plate 21 is fixedly connected to the inner wall of the rotating cylinder 20, and the top of the rotating cylinder 20 is connected to the third adjusting unit 13.

[0034] When the roll angle of the simulated remote sensing satellite 1 needs to be adjusted, the roll angle parameters of the simulated remote sensing satellite 1 can be adjusted in the orbit parameter adjustment module, and then the image acquisition and control system is used to start the second motor 19, drive the rotating plate 21 to rotate, and drive the rotating cylinder 20 to rotate synchronously to adjust the roll angle of the remote sensing satellite 1.

[0035] like Figure 2 and Figure 3 As shown, in this embodiment, the third adjusting unit 13 specifically includes a first U-shaped connecting plate 22, a second U-shaped connecting plate 23, a third motor 24 and a rotating shaft 25. The first U-shaped connecting plate 22 is arranged at the top of the second adjusting unit 12, specifically, the first U-shaped connecting plate 22 is arranged at the top of the rotating cylinder 20, and the second U-shaped connecting plate 23 is plugged and arranged above the first U-shaped connecting plate 22. The third motor 24 and the rotating shaft 25 are both arranged inside the first U-shaped connecting plate 22, the third motor 24 is connected to one end of the rotating shaft 25, and the other end of the rotating shaft 25 rotates through the first U-shaped connecting plate 22 and is fixedly connected to the second U-shaped connecting plate 23. The third motor 24 in this embodiment is arranged on a vertical plate on one side of the first U-shaped connecting plate 22, and the output shaft of the third motor 24 is fixedly connected to one end of the rotating shaft 25, and the other end of the rotating shaft 25 is rotatably connected to the vertical plate on the other side of the first U-shaped connecting plate 22 through a bearing, and the other end of the rotating shaft 25 passes through the vertical plate on the other side of the first U-shaped connecting plate 22, and is fixedly connected to the vertical plate on the adjacent second U-shaped connecting plate 23, and the vertical plate on which the third motor 24 is provided on the first U-shaped connecting plate 22 is rotatably connected to the vertical plate on the adjacent second U-shaped connecting plate 23.

[0036] When the pitch angle of the simulated remote sensing satellite 1 needs to be adjusted, the pitch angle parameters of the simulated remote sensing satellite 1 can be adjusted in the orbit parameter adjustment module, and then the third motor 24 is started by using the image acquisition and control system to drive the rotating shaft 25 to rotate, and then drive the second U-shaped connecting plate 23 to rotate back and forth synchronously to achieve the adjustment of the pitch angle of the remote sensing satellite 1.

[0037] In this embodiment, the support mechanism 3 specifically includes a support frame 26, four support units and four first universal wheels 27. The top of the support frame 26 is connected to the bottom of the adjustment mechanism 2, specifically the top of the support frame 26 is connected to the bottom of the sliding guide rail 14. The four support units are symmetrically arranged on the support frame 26, and the four first universal wheels 27 are respectively arranged at the four corners of the bottom of the support frame 26. In this embodiment, the support frame 26 consists of Profile composition.

[0038] In this embodiment, each support unit includes a fixed support leg 28, a connecting block 29 and a support screw 30. The connecting block 29 is connected to the support frame 26, the support screw 30 is threadedly connected to the connecting block 29, and the fixed support leg 28 is arranged at the bottom of the support screw 30.

[0039] When the optical simulation remote sensing satellite of this embodiment needs to be moved, the entire device is driven to move by pushing the support frame 26 under the rolling action of the first universal wheel 27. When it moves to a suitable position and the entire device needs to be fixed, the support screw 30 is rotated so that the support screw 30 moves downward along the connecting block 29. When the fixed support leg 28 contacts the ground, the entire device is supported and fixed by the fixed support leg 28.

[0040] When the optical simulation remote sensing satellite provided by this embodiment is in use, when indoor imaging is required, the entire device is moved to a suitable position, and then the image acquisition and control system is used to start the first motor 17, driving the screw 15 to rotate synchronously, so that the sliding block 16 moves back and forth along the screw 15 and the sliding guide rail 14, thereby adjusting the focal length of the simulated remote sensing satellite 1, and the image acquisition and control system is used to start the second motor 19, drive the rotating plate 21 to rotate, drive the rotating cylinder 20 to rotate synchronously, and adjust the side swing angle of the remote sensing satellite 1, and then use the image acquisition and control system to start the third motor 24, drive the rotating shaft 25 to rotate, and then drive the second U-shaped connecting plate 23 to rotate synchronously back and forth, to adjust the pitch angle of the remote sensing satellite 1. After adjustment, the long-focus imaging unit 4, the visible short-focus imaging unit 5 and the infrared short-focus imaging unit 6 are used respectively for indoor imaging or outdoor imaging.

[0041] like Figures 11 to 14 As shown in the figure, since the optical satellite needs to simulate the sub-satellite imaging, side swing and pitch imaging modes on orbit, the change of the camera's optical axis direction may cause the scene simulator target (area size) to change. ) falls outside the field of view of the camera, that is, it misses the target. In order to solve the above problem, the present invention designs a mobile scene simulator, and the mobile scene simulator in the embodiment of the present invention includes a mobile target 101, a lighting lamp 102 and a projector 103, the lighting lamp 102 and the projector 103 are respectively located in front of the mobile target 101, the mobile target 101 includes a transmission mechanism, a bracket 104, a remote sensing image scroll 105 and a projection mechanism used in conjunction with the projector 103, the transmission mechanism is connected to the bracket 104 and the remote sensing image scroll 105, and the projection mechanism is arranged on the front side of the remote sensing image scroll 105; the remote sensing image scroll 105 in this embodiment is specifically a scroll carrying a high-definition inkjet remote sensing image, and the projector 103 in this embodiment is an existing projector. As long as the conventional function of projecting the high-definition remote sensing image on the computer onto the screen can be realized, the present application does not involve improvements to the projector structure. When the remote sensing image scroll 105 (real object) is used to simulate the target, the lighting lamp 102 can simulate the change of ground brightness, that is, the change of the sun's altitude angle.

[0042] In this embodiment, the transmission mechanism includes a first roller 106, a second roller 107, and a fourth motor 108. The fourth motor 108 is mounted on the bracket 104. The first and second rollers 106, 107 are rotatably connected to the bracket 104 at both ends. The second roller 107 is located above the first roller 106. One end of the second roller 107 passes through the bracket 104 and is fixedly connected to the output shaft of the first motor 108. The remote sensing image scroll 105 is movably mounted on the outer surfaces of the first and second rollers 106, 107. In this embodiment of the present invention, the image acquisition and control system can control the rotation speed of the fourth motor 108, thereby controlling the movement speed of the remote sensing image scroll 105, thereby simulating the movement of the remote sensing image scroll 105 relative to the ground.

[0043] When it is necessary to use the remote sensing image scroll 5 to simulate the movement of relative objects, the curtain 111 is ensured to be in the retracted state, and the fourth motor 108 is started through the image acquisition and control system to drive the second roller 107 to rotate, thereby driving the remote sensing image scroll 105 to rotate synchronously around the first roller 106 and the second roller 107. The movement of relative objects can be simulated by the rotation of the remote sensing image scroll 105. When the remote sensing image scroll 105 rotates to the specified position, the first motor 108 is turned off.

[0044] In this embodiment, the projection mechanism includes a mounting shell 109, a rotating shaft 110, a screen 111, and a fifth motor 112. The mounting shell 109 is disposed on the top of an indoor wall 113. The rotating shaft 110 and the fifth motor 112 are respectively disposed inside the mounting shell 109. The fifth motor 112 is connected to the inner wall of the mounting shell 109. One end of the rotating shaft 110 is fixedly connected to the output shaft of the fifth motor 112, and the other end is rotatably connected to the inner wall of the mounting shell 109. One end of the screen 111 is connected to the rotating shaft 106, and the screen 111 is rolled up on the rotating shaft 110.

[0045] When it is necessary to use high-definition remote sensing images to simulate the movement of relative objects, the fifth motor 112 is started through the image acquisition and control system to drive the rotating shaft 110 to rotate, so that the screen 111 is unfolded downward. When it is fully unfolded, the fifth motor 112 is turned off, and the projector 103 is used to project the high-definition remote sensing image on the computer onto the screen 111. The movement of the projected image is used to simulate the movement of the relative objects. Computer simulation allows for flexible addition of scenes.

[0046] like Figures 15 to 18 As shown, the temperature-controlled scene simulator in the embodiment of the present invention includes a background substrate 201, a three-dimensional target 202, a temperature control mechanism and a bracket 203. The bracket 203 is arranged at the bottom of the background substrate 201, the three-dimensional target 202 is arranged on the front side of the background substrate 201, and the temperature control mechanism is arranged on the back side of the background substrate 201. The temperature of each zone is adjusted by a temperature controller 205. The background substrate 201 in this embodiment is used to simulate the scene where the infrared target appears. This embodiment is preferably a port scene, and can also be designed as other scenes, such as airports, woodlands, and building scenes. When designed as a port scene, it can be specifically designed to be half water surface and half land area. A plurality of water-type simulators 2021 such as ships are arranged in the water surface area, and a plurality of land-type simulators 2021 such as vehicles and buildings are arranged in the land area. The area of ​​the background substrate 201 is not less than 1000 square meters in the specific design. ; This embodiment, through the design of the temperature control mechanism, can control the temperature of the target area and key targets separately, simulating the temperature difference of the ground area, the temperature difference of the target, true and false targets, etc.

[0047] In this embodiment, a first magnetic layer 204 is provided on the front side surface of the background substrate 201. Through the design of the first magnetic layer 204, a detachable connection can be achieved with the simulator 2021 and the real target simulation object 2022, thereby facilitating the adjustment of the positions of the simulator 2021 and the real target simulation object 2022 on the background substrate 201.

[0048] The three-dimensional target 202 includes multiple simulators 2021, multiple real target simulators 2022, and multiple decoy target simulators 2023. Each simulator 2021 is provided with a second magnetic layer 2024. Each simulator is adsorbed and connected to the first magnetic layer 204 on the background substrate 201 via the second magnetic layer 2024. The multiple real target simulators 2022 and the multiple decoy target simulators 2023 are all connected to the front side of the background substrate 201. The simulators 2021 in this embodiment specifically include water-based simulators and land-based simulators. The water-based simulators include simulators such as ships, while the land-based simulators include simulators such as vehicles and buildings. The design of the second magnetic layer 2024 and the first magnetic layer 204 facilitates the adjustment of the position of the ship. The real target simulator 2022 in this embodiment is a steel model, while the decoy target simulator 2023 is a plastic model. In this embodiment, the temperature control mechanism includes a temperature controller 205, multiple coolers 206, multiple heating plates 207, and multiple heating rods. The multiple coolers 206 and multiple heating plates 206 are respectively arranged on the rear side of the background substrate 201, and the multiple heating rods are respectively arranged inside the real target simulator 2022. The temperature controller 205 is arranged on the bracket 203, and the multiple coolers 206, multiple heating plates 207, and multiple heating rods are respectively connected to the temperature controller 205. Since semiconductor coolers (TECs) have the characteristics of being quiet, vibration-free, requiring no refrigerant, small in size, light in weight, reliable in operation, simple in operation, and easy to adjust the cooling capacity, in this embodiment, the coolers 206 are preferably existing semiconductor coolers to cool the background substrate 201 and the simulator 2021. The heating plates 207 in this embodiment are preferably existing ceramic heating plates, which can be used to locally heat the background substrate 201 or the simulator 2021. The external dimensions are: In practical applications, different resistance values ​​can be selected according to actual needs, and different resistance values ​​correspond to different heating powers; the heating rod in this embodiment is preferably an existing small ceramic high-temperature heating rod, the maximum temperature can reach 1000 ° C, size: diameter , conveniently placed in the narrow space inside the real target simulation object 2022, simulating the working state of the real target simulation object 2022, such as the engine or chimney position. The temperature controller 205 in this embodiment adopts an existing temperature controller with functions such as heating, cooling, temperature telemetry, temperature display, and high and low temperature alarms. By setting high and low temperature thresholds and combining temperature measurement thermistors, when the temperature is below the threshold, the heating plate 207 is controlled to heat the controlled object; when the temperature is above the threshold, the refrigerator 206 is controlled to cool, thereby achieving temperature control of the controlled object. The model of the temperature controller 205 in this embodiment is XH-W2024.

[0049] The front side of the background substrate 201 is divided into multiple background areas 208. Each cooler 206 and heater 207 is located on the rear side of a corresponding background area 208 on the background substrate 201. In this embodiment, the number of background areas 208, coolers 206, and heaters 207 is preferably four. By providing a cooler 206 and heater 207 in each background area 208, independent temperature control can be achieved for each background area 208, thereby achieving different temperature backgrounds.

[0050] A second universal wheel 209 with a locking function is provided at the bottom of the bracket 203 .

[0051] In the embodiment of the present invention, Figures 23 to 27 As shown, the image acquisition and control system includes a back-end comprehensive information database and a front-end operating system; The back-end comprehensive information database stores satellite remote sensing data acquired by the optical simulation remote sensing satellite and target spectral feature data acquired by the ground quantitative remote sensing information acquisition unit; The front-end operating system adjusts the roll angle, pitch angle and orbital altitude of the optical simulation remote sensing satellite by adjusting the operating parameters, adjusts the movement speed of the three-dimensional target in the mobile scene simulator by adjusting the operating parameters, and adjusts the temperature of the three-dimensional target in the temperature-controlled scene simulator by adjusting the operating parameters.

[0052] The front-end operating system includes a login interface and a menu selection and control interface, the operating parameters are distributed on the menu selection and control interface, and the menu selection and control interface is set on the login interface; the menu selection and control interface includes a parameter configuration control module and a view display module; The parameter configuration control module includes a motion parameter control module (see Figure 24 Mark 9 on the top), visible light camera parameter setting module (see Figure 24 Mark 10 on the top), infrared camera lens parameter control module (see Figure 24 Mark 7 on the top), visible camera lens parameter control module (see Figure 24 Mark 8 on the top), infrared camera control module (see Figure 24 5 on the marked part) and the visible camera control module (see Figure 24 Mark 6 on the top); The motion parameter control module adjusts the roll angle, pitch angle and focal length of the optical simulation remote sensing satellite by adjusting the orbit parameters and target parameters, and adjusts the position of the three-dimensional target; The visible camera parameter setting module is used to adjust the camera parameters of the long-focus imaging unit 4 and the visible short-focus imaging unit 5; The infrared camera lens parameter control module realizes the focusing of the long-focus imaging unit 4 and the infrared short-focus imaging unit 6 by adjusting the configuration parameters of the camera; The visible camera lens parameter control module realizes focusing of the long-focus imaging unit 4 and the visible short-focus imaging unit 5 by adjusting the configuration parameters of the camera; The infrared camera control module is used to control the long-focus imaging unit 4 and the infrared short-focus imaging unit 6 to shoot videos and photos; The visible camera control module is used to control the long-focus imaging unit 4 and the visible short-focus imaging unit 5 to shoot videos and photos; The view display module includes an infrared image display module (see Figure 24 Mark 1 on the top), visible light image display module (see Figure 24 Mark 2 on the top), infrared camera operating status display module (see Figure 24 Mark 3 on the top), visible light camera operating status display module (see Figure 24 Mark 4 on the top); The infrared image display module is used to preview and display the imaging images of the long-focus imaging unit 4 and the infrared short-focus imaging unit 6; The visible light image display module is used to preview and display the images of the long-focus imaging unit 4 and the visible short-focus imaging unit 5; The infrared camera operating status display module is used to display the operating status of the long-focus imaging unit 4 and the infrared short-focus imaging unit 6; The visible light camera operating status display module is used to display the operating status of the long-focus imaging unit 4 and the visible short-focus imaging unit 5.

[0053] The user launches the front-end operating system. The menu bar in the upper left corner opens. Opening "Set Video and Photo Parameters" opens a parameter setting interface. The user can configure the paths and prefixes for the visible light and infrared cameras' video and photo capture in the parameter configuration control module. Clicking "Reset" in the motion parameter control module displays the progress of the simulated satellite mechanism reset. The simulated satellite is reset to its horizontal position: orbital altitude is 0, roll angle is 0, and pitch angle is 0. After the reset is complete, adjust the orbital altitude as needed. Set the pitch and roll angles of the simulated remote sensing satellite 1 as needed to align the visible short-focus imaging unit 5 with the moving scene simulator. Then, adjust the rotation angle of the moving scene simulator as needed. The angle range is (-99999° to 99999°), with positive numbers indicating positive rotation and negative numbers indicating negative rotation. Clicking the "Target Position" button causes the fourth motor 108 to rotate the remote sensing image scroll 105, stopping when it reaches the specified value. The "Target Position" display displays the angular distance of the current visible target motion. During the movement process, click "Stop" on the corresponding motion axis to stop the corresponding motion axis. Before imaging the moving scene simulator, use the visible camera lens parameter control module to adjust the focus to make the image clear; and use the visible camera parameter setting module to set the visible video and photo parameters to a moderate brightness. Click "Set Video and Photo Parameters" and then click "Start Video" or "Photo" on the visible camera control module to use the visible short-focus imaging unit 5 to capture a video or take a photo of the image on the remote sensing image scroll 105, thus achieving imaging of the moving scene simulator. After the operation is completed, click "Reset" in the motion parameter control module window. The progress bar displays the reset progress of the optical simulation remote sensing satellite and resets it to a horizontal position. "Stop" the moving scene simulator to stop the moving scene simulator.

[0054] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A remote sensing load principle teaching simulation system, characterized by: It includes an optical simulation remote sensing satellite, a temperature-controlled scene simulator, a mobile scene simulator, a ground quantitative remote sensing information acquisition device, and an image acquisition and control system. The optical simulation remote sensing satellite, the temperature-controlled scene simulator, the mobile scene simulator, and the ground quantitative remote sensing information acquisition device are all communicatively connected to the image acquisition and control system.

2. The remote sensing load principle teaching simulation system according to claim 1, characterized in that: The optical simulation remote sensing satellite comprises a simulation remote sensing satellite (1); an adjustment mechanism (2) for adjusting the roll angle, pitch angle and focal length of the simulation remote sensing satellite (1) is provided at the bottom of the simulation remote sensing satellite (1); and a support mechanism (3) for supporting the simulation remote sensing satellite (1) and the adjustment mechanism (2) is provided at the bottom of the adjustment mechanism (2).

3. The remote sensing payload principle teaching simulation system according to claim 2, characterized in that: The simulated remote sensing satellite (1) comprises a long-focus imaging unit (4), a visible short-focus imaging unit (5), an infrared short-focus imaging unit (6), a satellite cabin (7), two solar wings (8) and two data transmission antennas (9); the long-focus imaging unit (4), the visible short-focus imaging unit (5) and the infrared short-focus imaging unit (6) are respectively arranged inside the satellite cabin (7); the two solar wings (8) are respectively symmetrically arranged on the left side and the right side of the satellite cabin (7); and the two data transmission antennas (9) are respectively symmetrically arranged on the rear side of the satellite cabin (7).

4. The remote sensing load principle teaching simulation system according to claim 2, characterized in that: The adjustment mechanism (2) comprises a first adjustment unit (11) for adjusting the focal length of the simulated remote sensing satellite (1), a second adjustment unit (12) for adjusting the roll angle of the simulated remote sensing satellite (1), and a third adjustment unit (13) for adjusting the pitch angle of the simulated remote sensing satellite (1). The bottom of the first adjustment unit (11) is connected to the support mechanism (3), the second adjustment unit (12) is arranged on the top of the first adjustment unit (11), and the third adjustment unit (13) is arranged on the top of the second adjustment unit (12).

5. The remote sensing load principle teaching simulation system according to claim 1, characterized in that: The mobile scene simulator comprises a mobile target (101), a lighting lamp (102) and a projector (103), wherein the lighting lamp (102) and the projector (103) are respectively located in front of the mobile target (101), and the mobile target (101) comprises a transmission mechanism, a bracket (104), a remote sensing image scroll (105) and a projection mechanism used in conjunction with the projector (103), wherein the transmission mechanism is respectively connected to the bracket (104) and the remote sensing image scroll (105), and the projection mechanism is arranged in front of the remote sensing image scroll (105).

6. The remote sensing payload principle teaching simulation system according to claim 1, characterized in that: The temperature-controlled scene simulator comprises a background substrate (201), a three-dimensional target (202), a temperature control mechanism, and a bracket (203); the bracket (203) is arranged at the bottom of the background substrate (201); the three-dimensional target (202) is arranged on the front side of the background substrate (201); and the temperature control mechanism is arranged on the rear side of the background substrate (201).

7. The remote sensing payload principle teaching simulation system according to claim 6, characterized in that: The three-dimensional target (202) comprises a plurality of simulators (2021), a plurality of real target simulators (2022) and a plurality of false target simulators (2023); each simulator (2021) is provided with a second magnetic layer (2024); each simulator (2021) is adsorbed and connected to the first magnetic layer (204) on the background substrate (201) via the second magnetic layer (2024); and the plurality of real target simulators (2022) and the plurality of false target simulators (2023) are all connected to the front side of the background substrate (201).

8. The remote sensing payload principle teaching simulation system according to claim 6, characterized in that: The temperature control mechanism comprises a temperature controller (205), a plurality of refrigerators (206), a plurality of heating plates (207) and a plurality of heating rods. The plurality of refrigerators (206) and the plurality of heating plates (206) are respectively arranged on the rear side of the background substrate (201), and the plurality of heating rods are respectively arranged inside the real target simulation object (2022). The temperature controller (205) is arranged on the bracket (203), and the plurality of refrigerators (206), the plurality of heating plates (207) and the plurality of heating rods are respectively connected to the temperature controller (205).

9. The remote sensing payload principle teaching simulation system according to claim 1, characterized in that: The image acquisition and control system includes a back-end comprehensive information database and a front-end operating system; The back-end comprehensive information database stores satellite remote sensing data acquired by optical simulation remote sensing satellites and target spectral characteristics and meteorological environment data acquired by ground quantitative remote sensing information acquisition equipment; The front-end operating system adjusts the roll angle, pitch angle and orbital altitude of the optical simulation remote sensing satellite by adjusting the operating parameters, adjusts the movement speed of the three-dimensional target in the mobile scene simulator by adjusting the operating parameters, adjusts the temperature of the three-dimensional target in the temperature-controlled scene simulator by adjusting the operating parameters, and displays the image data output by the received camera.

10. The remote sensing payload principle teaching simulation system according to claim 9, characterized in that: The front-end operating system includes a login interface and a menu selection and control interface, the operating parameters are distributed on the menu selection and control interface, and the menu selection and control interface is set on the login interface; the menu selection and control interface includes a parameter configuration control module and a view display module; The parameter configuration control module includes a camera motion parameter control module, a visible light camera parameter control module, an infrared camera lens parameter control module, a visible light camera lens parameter control module, an infrared camera control module and a visible light camera control module; The motion parameter control module adjusts the roll angle, pitch angle and orbit height of the optical simulation remote sensing satellite by adjusting the orbit parameters and target parameters, and adjusts the relative motion of the three-dimensional target; The visible light camera parameter control module realizes image quality control of the long-focus imaging unit (4) and the visible short-focus imaging unit (5) by adjusting the integration series, integration time, gain and bias parameters; The infrared camera lens parameter control module realizes focusing of the infrared short-focus imaging unit (6) by adjusting the configuration parameters of the camera; The visible light camera lens parameter control module realizes focusing of the long-focus imaging unit (4) and the visible short-focus imaging unit (5) by adjusting the configuration parameters of the camera; The infrared camera control module is used to control the long-focus imaging unit (4) and the infrared short-focus imaging unit (6) to shoot videos and photos and read data; The visible light camera control module is used to control the long-focus imaging unit (4) and the visible short-focus imaging unit (5) to shoot videos and photos and read data; The view display module includes an infrared image display module, a visible light image display module, an infrared camera operating status display module, and a visible light camera operating status display module; The infrared image display module is used to preview and display the imaging images of the long-focus imaging unit (4) and the infrared short-focus imaging unit (6); The visible light image display module is used to preview and display the imaging images of the long-focus imaging unit (4) and the visible short-focus imaging unit (5); The infrared camera operating status display module is used to display the operating status of the long-focus imaging unit (4) and the infrared short-focus imaging unit (6); The visible light camera operating status display module is used to display the operating status of the long-focus imaging unit (4) and the visible short-focus imaging unit (5).

Images