阅读说明：本技术 一种适用于遥感卫星的视觉隐形装置、方法及卫星 (Visual stealth device and method suitable for remote sensing satellite and satellite ) 是由 王锴博 梁军民 高恩宇 孔令波 郇一恒 姜秀鹏 于 2021-08-17 设计创作，主要内容包括：本申请提供了一种适用于遥感卫星的视觉隐形装置、方法及卫星,包括显示器、星载相机和处理器；显示器设置于遥感卫星的正面,正面为遥感卫星对地的一面,处理器设置于遥感卫星内部,星载相机设置于遥感卫星的背面；星载相机,用于实时拍摄遥感卫星的背面正对的太空图像,并将太空图像发送至处理器；处理器,用于接收太空图像,并通过调整太空图像的尺寸,将太空图像处理成能够被整屏显示在显示器中且显示清晰度满足设定要求的目标太空图像,并将处理之后得到的目标太空图像发送至显示器；显示器,用于接收并显示目标太空图像,以使遥感卫星在地面观测者观测天空的视野中视觉隐形,本申请可以在一定程度上避免遥感卫星被观察到。(The application provides a visual stealth device and method suitable for a remote sensing satellite and the satellite, wherein the visual stealth device comprises a display, a satellite-borne camera and a processor; the display is arranged on the front side of the remote sensing satellite, the front side is a ground side of the remote sensing satellite, the processor is arranged in the remote sensing satellite, and the satellite-borne camera is arranged on the back side of the remote sensing satellite; the satellite-borne camera is used for shooting a space image opposite to the back of the remote sensing satellite in real time and sending the space image to the processor; the processor is used for receiving the space image, processing the space image into a target space image which can be displayed in the display in a whole screen mode and has the display definition meeting the set requirement by adjusting the size of the space image, and sending the target space image obtained after processing to the display; the display is used for receiving and displaying the target space image so that the remote sensing satellite is invisible in the view of the ground observer for observing the sky.)

1. A visual contact device suitable for remote sensing satellites is characterized by comprising a display, a satellite-borne camera and a processor; the display is arranged on the front side of the remote sensing satellite, the front side is the ground side of the remote sensing satellite, the processor is arranged in the remote sensing satellite, and the satellite-borne camera is arranged on the back side of the remote sensing satellite;

the satellite-borne camera is used for shooting a space image opposite to the back of the remote sensing satellite in real time and sending the space image to the processor;

the processor is used for receiving the space image, processing the space image into a target space image which can be displayed in the display in a whole screen mode and has the display definition meeting the set requirement by adjusting the size of the space image, and sending the target space image obtained after processing to the display;

the display is used for receiving and displaying the target space image so that the remote sensing satellite is invisible in the view of the ground observer for observing the sky.

2. The device of claim 1, wherein the remote sensing satellite comprises a satellite body and solar panels disposed on either side of the satellite body; the display comprises a first display and a second display, wherein the first display is arranged on the two solar panels respectively, and the second display is arranged on the satellite main body;

the processor processes the space image into a target space image which can be displayed in the display in a whole screen mode and has the display definition meeting the set requirement by adjusting the size of the space image, and the method comprises the following steps:

the processor intercepts a first image of the space shielded by the satellite main body and a second image of the space shielded by the solar panel from the space image;

the method comprises the steps of respectively adjusting the sizes of a first image and a second image, processing the first image into a target first image which can be displayed in the first display in a whole screen mode and has the display definition meeting a set requirement, and processing the second image into a target second image which can be displayed in the second display in a whole screen mode and has the display definition meeting the set requirement.

3. The visual contact device adapted for a remote sensing satellite of claim 2,

the processor processes the second image into a target first image which can be displayed in the second display in a whole screen mode and has the display definition meeting the set requirement by adjusting the size of the second image, and comprises the following steps:

when the solar panel rotates along with the sun, the size of the second image is adjusted according to the real-time included angle between the solar panel and the ground surface of the satellite, and the second image is processed into the target first image which can be displayed in the second display through the whole screen and the display definition of the target first image meets the set requirement.

4. The visual contact device suitable for remote sensing satellites according to claim 2 or 3,

the processor adjusts the size of the first image or the second image in a mode of cutting and/or stretching so that the time difference between the moment when the first display displays the first image and the moment when the second display displays the second image and the moment when the space image is shot by the satellite-borne camera is smaller than a first set threshold value.

5. The visual contact device adapted for remote sensing satellites of claim 1,

the processor is also used for receiving a control instruction sent by a ground measurement and control personnel through a ground station and controlling the starting or closing of the invisible vision device according to the control instruction.

6. The visual contact device adapted for remote sensing satellites of claim 1,

the processor is further used for acquiring running state data of the visual invisible device and sending the running state data to the ground station so that the ground station can judge whether the visual invisible device runs abnormally according to the running state data;

and if the operation is abnormal, the processor receives an overhaul instruction sent by a ground measurement and control personnel through a ground station so as to enable the visual invisible device to recover the normal operation according to the overhaul instruction.

7. The visual contact device adapted for remote sensing satellites of claim 6,

the ground station is provided with a display which is the same as the display in the visual stealth device;

the processor is further configured to send the processed target space image to a ground station, so that a display in the ground station displays the target space image, and determine whether a preset adjustment parameter in the processor is reasonable or not according to whether the target space image is displayed in a full screen manner in the display in the ground station and the display definition meets a set requirement; the preset adjusting parameters in the processor are parameters which are processed as the basis in the process of adjusting the size of the space image;

and if the preset adjustment parameters in the processor are unreasonable, the processor receives a parameter adjusting instruction sent by ground measurement and control personnel through a ground station so as to modify the preset adjustment parameters in the processor according to the parameter adjusting instruction.

8. The device of claim 1, wherein the display is provided with mounting holes for mounting an imaging camera of the optical remote sensing satellite when the remote sensing satellite is an optical remote sensing satellite.

9. The visual stealth method is suitable for a remote sensing satellite and is characterized by being suitable for a visual stealth device, wherein the visual stealth device comprises a display, a satellite-borne camera and a processor; the display sets up in the front of remote sensing satellite, the front is the one side of remote sensing satellite ground, the treater set up in inside the remote sensing satellite, the on-board camera sets up in the back of remote sensing satellite, includes:

the satellite-borne camera shoots space images opposite to the back of the remote sensing satellite in real time and sends the space images to the processor;

the processor receives the space image, processes the space image into a target space image which can be displayed in the display in a whole screen mode and has the display definition meeting the set requirement by adjusting the size of the space image, and sends the target space image obtained after processing to the display;

the display receives and displays the target space image so that the remote sensing satellite is visually invisible in a field of view of the ground observer observing the sky.

10. A satellite comprising a satellite body and the invisible vision device of any one of claims 1-8 carried on the satellite body.

Technical Field

The application relates to the technical field of visual invisibility, in particular to a visual invisibility device and method suitable for a remote sensing satellite and the satellite.

Background

In recent years, the aerospace industry is vigorously developed, and extremely advanced products are developed in the aspects of deep space exploration, space stations, manned aerospace, remote sensing satellites and the like. Remote sensing satellites are artificial satellites used as outer space remote sensing platforms, and in general, remote sensing satellites can operate on orbit for years. The satellite orbit can be determined as desired. The remote sensing satellite can cover the whole earth or any designated area within a specified time, when the remote sensing satellite runs along a geosynchronous orbit, the remote sensing satellite can continuously remotely sense a designated area on the earth surface, can monitor the conditions of agriculture, forestry, oceans, China soil, environmental protection, meteorology and the like, and is easy to detect and track due to a low flight orbit of the remote sensing satellite under the common condition. By detecting and tracking the satellite, the flight orbit can be calculated, even the shape of the satellite can be distinguished, so that the function of the satellite can be known, and the use efficiency can be reduced by proper interference or camouflage; meanwhile, the orbit determination satellite faces the threat of various anti-satellite weapons. In order to improve the use efficiency and the safety degree of the in-orbit satellite, the invisible design of the in-orbit satellite is an effective solution.

Disclosure of Invention

In view of the above, an object of the present invention is to provide a visual invisibility apparatus and method suitable for a remote sensing satellite, and a satellite, which make the remote sensing satellite invisible from the observation field of a ground observer to a certain extent.

The visual stealth device suitable for the remote sensing satellite comprises a display, a satellite-borne camera and a processor; the display is arranged on the front side of the remote sensing satellite, the front side is the ground side of the remote sensing satellite, the processor is arranged in the remote sensing satellite, and the satellite-borne camera is arranged on the back side of the remote sensing satellite;

the satellite-borne camera is used for shooting a space image opposite to the back of the remote sensing satellite in real time and sending the space image to the processor;

the processor is used for receiving the space image, processing the space image into a target space image which can be displayed in the display in a whole screen mode and has the display definition meeting the set requirement by adjusting the size of the space image, and sending the target space image obtained after processing to the display;

the display is used for receiving and displaying the target space image so that the remote sensing satellite is invisible in the view of the ground observer for observing the sky.

In some embodiments, the remote sensing satellite comprises a satellite body and solar panels respectively arranged on two sides of the satellite body; the display comprises a first display and a second display, wherein the first display is arranged on the two solar panels respectively, and the second display is arranged on the satellite main body;

the processor processes the space image into a target space image which can be displayed in the display in a whole screen mode and has the display definition meeting the set requirement by adjusting the size of the space image, and the method comprises the following steps:

the processor intercepts a first image of the space shielded by the satellite main body and a second image of the space shielded by the solar panel from the space image;

the method comprises the steps of respectively adjusting the sizes of a first image and a second image, processing the first image into a target first image which can be displayed in the first display in a whole screen mode and has the display definition meeting a set requirement, and processing the second image into a target second image which can be displayed in the second display in a whole screen mode and has the display definition meeting the set requirement.

In some embodiments, the processor in the device for visual invisibility suitable for remote sensing satellites processes the second image into the target first image which can be displayed in the second display in a whole screen mode and has the definition meeting the set requirement by adjusting the size of the second image, and the method comprises the following steps:

when the solar panel rotates along with the sun, the size of the second image is adjusted according to the real-time included angle between the solar panel and the ground surface of the satellite, and the second image is processed into the target first image which can be displayed in the second display through the whole screen and the display definition of the target first image meets the set requirement.

In some embodiments, the processor in the device for visual invisibility suitable for remote sensing satellites adjusts the size of the first image or the second image by cutting and/or stretching, so that the time difference between the moment when the first image is displayed by the first display and the moment when the second image is displayed by the second display and the moment when the space image is shot by the satellite-borne camera is smaller than a first set threshold value.

In some embodiments, the processor in the invisible vision device for a remote sensing satellite is further configured to receive a control instruction sent by a ground measurement and control person through a ground station, and control the invisible vision device to be turned on or turned off according to the control instruction.

In some embodiments, the processor in the invisible vision device suitable for the remote sensing satellite is further configured to acquire operation state data of the invisible vision device and send the operation state data to the ground station, so that the ground station determines whether the invisible vision device is abnormal in operation according to the operation state data;

and if the operation is abnormal, the processor receives an overhaul instruction sent by a ground measurement and control personnel through a ground station so as to enable the visual invisible device to recover the normal operation according to the overhaul instruction.

In some embodiments, in the ground station, a same display as in the visual contact device is provided;

the processor in the visual stealth device suitable for the remote sensing satellite is also used for sending the target space image obtained after processing to a ground station so as to enable a display in the ground station to display the target space image, and judging whether a preset adjusting parameter in the processor is reasonable or not according to whether the target space image is displayed in a whole screen in the display in the ground station and the display definition meets a set requirement; the preset adjusting parameters in the processor are parameters which are processed as the basis in the process of adjusting the size of the space image;

and if the preset adjustment parameters in the processor are unreasonable, the processor receives a parameter adjusting instruction sent by ground measurement and control personnel through a ground station so as to modify the preset adjustment parameters in the processor according to the parameter adjusting instruction.

In some embodiments, when the remote sensing satellite is an optical remote sensing satellite, the display in the visual contact device suitable for the remote sensing satellite is provided with a mounting through hole, and the mounting through hole is used for mounting an imaging camera of the optical remote sensing satellite.

In some embodiments, there is also provided a method of visual contact suitable for a remote sensing satellite, suitable for use in a visual contact device comprising a display, an on-board camera, and a processor; the display sets up in the front of remote sensing satellite, the front is the one side of remote sensing satellite ground, the treater set up in inside the remote sensing satellite, the on-board camera sets up in the back of remote sensing satellite, includes:

the satellite-borne camera shoots space images opposite to the back of the remote sensing satellite in real time and sends the space images to the processor;

the processor receives the space image, processes the space image into a target space image which can be displayed in the display in a whole screen mode and has the display definition meeting the set requirement by adjusting the size of the space image, and sends the target space image obtained after processing to the display;

the display receives and displays the target space image so that the remote sensing satellite is visually invisible in a field of view of the ground observer observing the sky.

In some embodiments, a satellite is also provided, comprising a satellite body and the visual contact device carried on the satellite body.

The method comprises the steps of shooting a background space on the back of a satellite through a satellite-borne camera, imaging, projecting a part of a background object to a display positioned on the front after processing by a processor, and integrating the front of the remote sensing satellite in the visual field of a ground observer and the background space into a whole so that the remote sensing satellite is invisible visually at the moment.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a schematic diagram illustrating the construction of a visual contact apparatus according to an embodiment of the present application;

FIG. 2 is a schematic circuit diagram of a visual contact device according to an embodiment of the present application;

FIG. 3 illustrates a geometric model of the location of the invisible visual device with respect to a ground observer in an embodiment of the present application;

FIG. 4 shows a schematic view of a solar panel of the remote sensing satellite projected with its solar panel in the eye of a ground observer in an embodiment of the application;

FIG. 5 is a schematic structural diagram of the visual contact device for an optical remote sensing satellite in the embodiment of the application;

fig. 6 shows a flow chart of a method of the visual invisibility method described in the embodiments of the present application.

1. A remote sensing satellite; 1-1, a satellite body; 1-2, a solar panel; 1-3, an imaging camera; 2. a display; 2-1, a first display; 2-2, a second display; 2-3; mounting a through hole; 3. a satellite-borne camera; 4. a processor; 5. a ground observer; 6. background space; 6-1, target space image; 7. solar panel projection.

Detailed Description

In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it should be understood that the drawings in the present application are for illustrative and descriptive purposes only and are not used to limit the scope of protection of the present application. Additionally, it should be understood that the schematic drawings are not necessarily drawn to scale. The flowcharts used in this application illustrate operations implemented according to some embodiments of the present application. It should be understood that the operations of the flow diagrams may be performed out of order, and steps without logical context may be performed in reverse order or simultaneously. One skilled in the art, under the guidance of this application, may add one or more other operations to, or remove one or more operations from, the flowchart.

In addition, the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that in the embodiments of the present application, the term "comprising" is used to indicate the presence of the features stated hereinafter, but does not exclude the addition of further features.

Visual camouflage or visual invisibility has many important applications in military. Visual camouflage is the visual change of the appearance of an object and belongs to the field of visual invisibility. The device stealth technology mainly comprises radar stealth, infrared stealth, visible light stealth and the like. A plurality of weaponry, such as planes, missiles, tanks, chariot, cannons and the like, can take invisible measures to conceal themselves to a certain extent. The visual invisibility is mainly achieved by using a method of changing the propagation characteristic of electromagnetic waves by equipment, and usually, a layer of invisible material is coated on the surface of the equipment. The light is diffracted when passing through the invisible material layer and is restored to the original track when passing through the surface on the other side, thereby achieving the aim of invisibility. In recent years, more popular invisible clothes, invisible cloak and the like are manufactured based on the method.

For the remote sensing satellite 1, the stealth mode belongs to passive stealth, and the remote sensing satellite 1 is large in size and difficult to completely stealth in vision in the mode.

In nature, many organisms visually integrate with the environment by means of changing the appearance color and the like so as to avoid the attack of natural enemies. People also invent equipment such as camouflage clothes, jeopardy clothes and the like which can enable the camouflage clothes, the jeopardy clothes and the like to be integrated into the environment, so that soldiers can avoid the investigation of enemies in the environments such as jungles, grasslands, snowfields and the like. In view of this, in addition to the shape of the core part of the remote sensing satellite 1 being mostly a regular polyhedron, this way of hiding itself can also be applied to the remote sensing satellite 1, so that the operation of the remote sensing satellite 1 is less easily detected.

The embodiment of the application provides a visual stealth device suitable for a remote sensing satellite 1, as shown in fig. 1, the visual stealth device comprises a display 2, a satellite-borne camera 3 and a processor 4; the display 2 is arranged on the front side of the remote sensing satellite 1, the front side is a ground side of the remote sensing satellite 1, the processor 4 is arranged in the remote sensing satellite 1, and the satellite-borne camera 3 is arranged on the back side of the remote sensing satellite 1;

as shown in fig. 2, the satellite-borne camera 3 is configured to capture a space image directly opposite to the back of the remote sensing satellite 1 in real time, and send the space image to the processor 4;

the processor 4 is used for receiving the space image, processing the space image into a target space image 6-1 which can be displayed in the display 2 in a whole screen mode and has the display definition meeting the set requirement by adjusting the size of the space image, and sending the target space image 6-1 obtained after processing to the display 2;

the display 2 is used for receiving and displaying the target space image 6-1 so as to enable the remote sensing satellite 1 to be invisible in the view of the sky observed by a ground observer 5.

In the embodiment of the present application, taking a remote sensing satellite 1 orbiting 500 km away as an example, a simple geometric model is established, as shown in fig. 3, a ground observer 5 observes the satellite on the ground, the propagation of light is approximately regarded as parallel light, the remote sensing satellite 1 is approximately a cuboid, the front surface is opposite to the ground observer 5, and the back surface is opposite to the background space 6.

When a ground observer 5 observes the satellite on the ground, the propagation of light is approximately regarded as parallel light, the remote sensing satellite 1 is approximately a cuboid, one surface of the remote sensing satellite 1 opposite to the ground, namely the surface opposite to the observer, is a front surface, and the surface opposite to the background space 6 is a back surface; the background space 6 is shot by the satellite-borne camera 3 for imaging, the processor 4 projects a part of the background space 6 (target space image 6-1) to the display 2 positioned on the front surface after processing, and the front surface of the remote sensing satellite 1 in the visual field of the ground observer 5 is integrated with the background space 6, so that the remote sensing satellite 1 is invisible visually at the moment.

The display 2 is arranged on the front face of the remote sensing satellite 1, in the embodiment of the application, the remote sensing satellite 1 comprises a satellite main body 1-1 and solar panels 1-2 respectively arranged on two sides of the satellite main body 1-1; the display 2 comprises a first display 2-1 and a second display 2-2, wherein the first display 2-1 and the second display 2-2 are respectively arranged on the two solar panels 1-2;

the processor 4 processes the space image into a target space image 6-1 which can be displayed in the display 2 in a whole screen mode and has the display definition meeting the set requirement by adjusting the size of the space image, and comprises the following steps:

s101, intercepting a first image of the space shielded by a satellite main body 1-1 and a second image of the space shielded by a solar panel 1-2 from the space image by the processor 4;

s102, respectively adjusting the sizes of a first image and a second image, processing the first image into a target first image which can be displayed in the first display 2-1 in a whole screen mode and has the display definition meeting the set requirement, and processing the second image into a target second image which can be displayed in the second display 2-2 in a whole screen mode and has the display definition meeting the set requirement.

The steps S101 and S102 are specific processing means for processing the space image into the target sky image by the processor 4, that is, functions specifically used by the processor 4.

In step S101, since the area of the space image captured by the satellite camera 3 is fixed, and the relative position between the satellite camera 3 and the satellite main body 1-1 and the solar panel 1-2 is determined, the area of the space image captured by the satellite camera 3 overlapping with the satellite main body 1-1 and the solar panel 1-2 in the direction of the surface of the satellite facing the ground is determined, that is, the first image of the space blocked by the satellite main body 1-1 and the second image of the space blocked by the solar panel 1-2 correspond to the fixed area of the space image captured by the satellite camera 3, respectively. Therefore, based on the correspondence relationship between the first image and the second image and the fixed area of the space image shot by the space-borne camera 3, the interception parameter is set in the processor 4 in advance, and the first image and the second image can be quickly acquired according to the preset interception parameter.

The preset interception parameter may be: and establishing a coordinate system by taking the center of the space image shot by the satellite-borne camera 3 as an origin, wherein the first image and the second image respectively correspond to the determined coordinate areas.

The preset clipping parameters may also be clipping proportions corresponding to the first image and the second image respectively according to a preset clipping sequence, for example, for the space image shot by the space-borne camera 3, the preset proportions are clipped up and down respectively, and then the preset proportions are clipped left and right respectively, so as to obtain the first image.

In the step S101, since the solar panel 1-2 rotates with the sun, an included angle between the solar panel 1-2 and one surface of the satellite facing the ground changes with time, so that a real-time included angle between the solar panel 1-2 and one surface of the satellite facing the ground is further included in preset interception parameters of a space image corresponding to a second image of the space shielded by the solar panel 1-2, and the implementation included angle is obtained from a control system of the satellite. And the processor 4 updates the interception parameters of the space image corresponding to the second image in real time according to the real-time included angle, such as updating a coordinate area corresponding to the second image and updating the cutting proportion corresponding to the second image respectively, so as to obtain a more accurate second image.

Namely, the processor 4 intercepts a first image of the space shielded by the satellite main body 1-1 from the space image according to a preset first interception parameter; and updating the second interception parameter in real time according to a preset second interception parameter and a real-time included angle between the solar panel 1-2 and one surface of the remote sensing satellite 1 opposite to the ground, and intercepting a second image of the space shielded by the solar panel 1-2 from the space image according to the updated second interception parameter.

In the embodiment of the application, the image of the space area shielded by the satellite main body 1-1 and the solar panel 1-2 of the remote sensing satellite 1 is accurately intercepted through the preset interception parameter, so that the fusion similarity degree of one surface of the satellite for comparison and the background space 6 is further enhanced, and the camouflage and invisible effect of the remote sensing satellite 1 is enhanced.

In step S102, the processor 4 adjusts the size of the first image or the second image by cropping and/or stretching, so that the time difference between the time when the first display 2-1 displays the first image and the time when the second display 2-2 displays the second image and the time when the space image is captured by the space-borne camera 3 is smaller than a first set threshold.

The processor 4 adjusts the first image and the second image according to preset adjustment parameters. The adjusting parameters are cutting parameters and/or stretching parameters.

The sizes of the first image or the second image can be adjusted in various ways, and the cutting and/or stretching is an adjusting way with small calculation amount, so that the time difference between the moment when the first display 2-1 displays the first image and the moment when the second display 2-2 displays the second image and the moment when the space image is shot by the satellite-borne camera 3 is smaller than a first set threshold value, meanwhile, the electric quantity in the remote sensing satellite 1 comes from the solar panel 1-2, the use is saved, the small calculation amount is beneficial to reducing the energy consumption of the processor 4, and the electric quantity is saved.

In step S102, since the included angle between the solar panel 1-2 and the ground facing surface of the satellite changes with time, the processor 4 processes the second image into the target first image which can be displayed on the second display 2-2 in a full screen manner and has a display resolution meeting the set requirement by adjusting the size of the second image, including:

when the solar panel 1-2 rotates along with the sun, the size of a second image is adjusted according to a real-time included angle between the solar panel 1-2 and one surface of the satellite facing the ground, and the second image is processed into a target first image which can be displayed in the second display 2-2 in a whole screen mode and has the display definition meeting the set requirement.

Since the second image is an image of the space region blocked by the solar panel 1-2, the difference between the size of the second image and the size of the solar panel 1-2 is not fixed, because the processor 4 adjusts the second image according to the preset adjustment parameter and the real-time included angle between the solar panel 1-2 and the ground surface of the satellite.

Specifically, a method for adjusting the size of the second image according to the real-time angle between the solar panel 1-2 and the ground of the satellite is provided below.

When the solar panel 1-2 rotates along with the sun, taking the angle between the solar panel 1-2 and the satellite front face as 60 degrees as an example, as shown in fig. 4, a solar panel 1-2 with a width of 2a meters, and the projection 7 of the solar panel in 5 eyes of a ground observer isMeter, i.e. the width of the second image is a meters.

At this time, when the processor 4 processes the second image, the second image is cut up and down by 25% respectively, then longitudinally stretched by 200% and transversely stretched by 200% to obtain a target second image, and finally the target second image obtained by processing is displayed on the display 2.

The processor 4 sends the target space image 6-1 obtained after processing to the display 2, and actually sends an electric signal corresponding to the target space image 6-1; and after the display 2 receives the electric signal, the target space image 6-1 is displayed under the control of the electric signal.

In the embodiment of the application, the processor 4 is suitable for the invisible visual device of the remote sensing satellite 1 and is also used for receiving a control instruction sent by a ground measurement and control personnel through a ground station and controlling the invisible visual device to be started or closed according to the control instruction.

When a remote sensing satellite 1 enters a preset orbit to normally operate, measurement and control personnel on the ground can send a 'start vision invisible device' instruction to start the vision invisible device, a satellite-borne camera 3 starts imaging after the start, a processor 4 processes the imaging and then displays the imaging by a display 2, and the remote sensing satellite 1 and a background space 6 in the visual field of a ground observer 5 are integrated; the ground measurement and control personnel can also send a 'closing visual invisible device' instruction to close the visual invisible device, the satellite-borne camera 3 does not image any more after being closed, the display 2 does not display images any more, and a ground observer 5 can observe the remote sensing satellite 1.

The starting or closing of the visual stealth device is controlled through the control instruction, so that the remote sensing satellite 1 is stealthy when the remote sensing satellite 1 needs to be hidden, the remote sensing satellite 1 is visible when the remote sensing satellite 1 needs to be observed (for example, the satellite is overhauled), and the remote sensing satellite 1 is more flexible compared with the remote sensing satellite 1 which is stealthy through a special coating; meanwhile, the energy of the remote sensing satellite 1 can be saved.

In the embodiment of the application, the processor 4 in the invisible vision device suitable for the remote sensing satellite 1 is further configured to acquire operation state data of the invisible vision device and send the operation state data to the ground station, so that the ground station judges whether the invisible vision device is abnormal in operation or not according to the operation state data;

and if the operation is abnormal, the processor 4 receives a maintenance instruction sent by a ground measurement and control personnel through a ground station so as to enable the visual invisible device to recover the normal operation according to the maintenance instruction.

The abnormal operation includes an abnormal operation detected by an abnormality detection program built in the processor 4, or the like, and any one of the onboard camera 3, the processor 4, and the display 2 is not normally turned on or off.

The maintenance instruction comprises restarting the visual stealth device, closing the visual stealth device and delaying restarting the visual stealth device.

The running state data of the invisible vision device is sent to the ground station, so that the running state of the invisible vision device is monitored, the abnormal state of the invisible vision device is overhauled in time, and the invisible vision device is guaranteed to work normally.

In some embodiments, in the ground station, there is provided a display 2 identical to the display 2 in the visual contact device;

the processor 4 in the visual stealth device suitable for the remote sensing satellite 1 is further configured to send the target space image 6-1 obtained after processing to a ground station, so that the display 2 in the ground station displays the target space image 6-1, and whether preset adjustment parameters in the processor 4 are reasonable is judged according to whether the target space image 6-1 is displayed in a whole screen in the display 2 in the ground station and the display definition meets set requirements; the preset adjusting parameters in the processor 4 are parameters for processing the space image size in the process of adjusting the space image size;

if the preset parameters in the processor 4 are not reasonable, the processor 4 receives a parameter adjusting instruction sent by a ground measurement and control person through a ground station, so as to modify the preset adjusting parameters in the processor 4 according to the parameter adjusting instruction.

For the display effect of the display 2 arranged on the satellite, the ground measurement and control personnel are difficult to directly, clearly and conveniently observe, therefore, the display 2 which is the same as the display 2 in the visual stealth device is arranged in the ground station, the same target cosmic image is synchronously displayed with the display 2 in the visual stealth device, the display effect of the display 2 of the visual stealth device of the remote sensing satellite 1 is directly, clearly, conveniently and real-timely evaluated, whether the preset adjustment parameters in the processor 4 are reasonable or not is judged according to the display effect, more reasonable adjustment parameters can be tested, and the parameters in the processor 4 of the visual stealth device are modified, so that the stealth degree of the visual stealth device is improved.

In the embodiment of the application, as shown in fig. 5, when the remote sensing satellite 1 is an optical remote sensing satellite 1, the display 2 is provided with the mounting through holes 2-3, and the mounting through holes 2-3 are used for mounting the imaging cameras 1-3 of the optical remote sensing satellite 1. For the optical remote sensing satellite 1, the front of the optical remote sensing satellite 1 needs to be provided with an imaging camera 1-3 for imaging the ground, and at this time, the front should not cover the display 2 of the optical camouflage device, otherwise, the imaging camera 1-3 is blocked from imaging.

In the embodiment of the application, a visual stealth method suitable for a remote sensing satellite 1 is also provided, and is suitable for a visual stealth device, wherein the visual stealth device comprises a display 2, a satellite-borne camera 3 and a processor 4; the display 2 is arranged on the front side of the remote sensing satellite 1, the front side is the ground side of the remote sensing satellite 1, the processor 4 is arranged inside the remote sensing satellite 1, the satellite-borne camera 3 is arranged on the back side of the remote sensing satellite 1, and as shown in fig. 6, the visual stealth method comprises the following steps:

the satellite-borne camera 3 shoots space images opposite to the back of the remote sensing satellite 1 in real time and sends the space images to the processor 4;

the processor 4 receives the space image, processes the space image into a target space image 6-1 which can be displayed in the display 2 in a whole screen mode and has the display definition meeting the set requirement by adjusting the size of the space image, and sends the target space image 6-1 obtained after processing to the display 2;

the display 2 receives and displays the target space image 6-1 so that the remote sensing satellite 1 is visually invisible in the field of view of the sky observed by a ground observer 5.

In an embodiment of the present application, a satellite is further provided, and includes a satellite body and the invisible visual device mounted on the satellite body.

It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the above-described apparatus and the specific working process of the apparatus may refer to the corresponding process in the method embodiment, and are not described in detail in this application. In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. The above-described apparatus embodiments are merely illustrative, and for example, the division of the modules is merely a logical division, and there may be other divisions in actual implementation, and for example, a plurality of modules or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or modules through some communication interfaces, and may be in an electrical, mechanical or other form.

The modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a non-volatile computer-readable storage medium executable by the processor 4. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a platform server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.