CN110865556A - Virtual satellite, virtual satellite-based software and algorithm test platform and method - Google Patents

Abstract

The invention provides a virtual satellite, a test platform and a method based on software and algorithm of the virtual satellite, relating to the technical field of the virtual satellite, wherein the platform comprises: the satellite control and state monitoring tool carries out measurement and control and software/algorithm injection on the virtual satellite and receives the data downloaded by the virtual satellite; the internal testing tool monitors the behavior of the software/algorithm and tests the performance of the software/algorithm; the external test tool performs configuration item testing and/or system testing on the software/algorithm. The virtual satellite decouples the cloud computing platform simulator with the satellite platform simulator and the load simulator by taking the data center as an interface. The invention can improve the integration degree of the simulator through the virtual satellite; the monitoring tool and the testing tool realize efficient sharing and multiplexing of testing resources, and the problem that the existing satellite testing cannot meet multi-region cooperation, distributed execution and large-scale parallel testing is solved.

Description

Virtual satellite, virtual satellite-based software and algorithm test platform and method

technical field

The invention relates to the technical field of virtual satellites, in particular to a virtual satellite, a test platform and method for virtual satellite-based software and algorithms.

Background technique

The purpose of satellite software/algorithm testing is to comprehensively and effectively test the satellite software/algorithm before it is used, to obtain possible problems and design defects of the satellite software/algorithm, and to provide favorable technical support for the subsequent development of the satellite software/algorithm. The software/algorithms are functioning properly on the satellite.

In traditional satellite testing, due to the tight coupling of satellite software and hardware, it is impossible to provide a set of software execution environment that is the same as that of in-orbit satellites in pure software, and can only rely on physical or semi-physical simulated desktop satellites for testing. Due to the different operating environments and operating modes of the simulator, there is a problem of inconsistent degree of integration; and the existing technology of desktop satellites is expensive and limited in number, which cannot meet the multi-regional coordination, distributed execution, and large-scale parallel test work. .

SUMMARY OF THE INVENTION

In view of this, the purpose of the present invention is to provide a virtual satellite, a virtual satellite-based software and algorithm testing platform and method, so as to improve the integration degree of the simulator and the repeated utilization of testing resources.

In a first aspect, an embodiment of the present invention provides a virtual satellite, wherein the virtual satellite includes: a satellite platform simulator, a cloud computing platform simulator and a load simulator connected to the satellite platform simulator through a data center, wherein, The cloud computing platform simulator is decoupled from the satellite platform simulator and the load simulator by using the data center as an interface; the satellite platform simulator is used to simulate the satellite platform system and output satellite platform data; The payload simulator is used to simulate the payload system and output payload data; the cloud computing platform simulator is used to provide the same basic services as the orbiting satellite, and read the satellite platform data and the payload data.

In conjunction with the first aspect, the embodiment of the present invention provides the first possible implementation manner of the first aspect, wherein the cloud computing platform simulator includes a Sputnix virtual machine with basic services; the Sputnix virtual machine is loaded with the same foundation as the orbiting satellite. services; wherein, the basic services include at least one of the following: measurement and control services, monitoring and management services, data transmission services, injection services, platform data services, and camera services.

In conjunction with the first aspect, the embodiment of the present invention provides a second possible implementation manner of the first aspect, wherein the data center includes a database; the database is used to simulate the integrated unit part of a real satellite, and obtain external excitation data. data.

In conjunction with the first aspect, the embodiment of the present invention provides a third possible implementation manner of the first aspect, wherein the satellite platform system simulated by the satellite platform simulator includes: a thermal control subsystem, a power source subsystem, an attitude and Orbit control subsystem, propulsion subsystem, measurement and control subsystem and data management subsystem.

In conjunction with the first aspect, the embodiment of the present invention provides a fourth possible implementation manner of the first aspect, wherein the payload system simulated by the payload simulator includes: an information acquisition subsystem, an information transmission subsystem, and an information benchmark sub-system.

In a second aspect, an embodiment of the present invention provides a test platform for software and algorithms based on virtual satellites, including: a virtual satellite in any possible implementation manner of the first aspect, and a cloud computing system related to the virtual satellite Satellite control and status monitoring tools, external testing tools, and internal testing tools installed inside the virtual satellites that are communicatively connected to the platform simulator; the satellite control and status monitoring tools are used to perform measurement, control and software on the virtual satellites /Injection of the algorithm, and receive the satellite platform data and payload data of the cloud computing platform simulator; the internal testing tool is used to monitor the behavior of the software/algorithm running on the virtual satellite, and Perform performance testing on the software/algorithm; the external testing tool is used to perform configuration item testing and/or system testing on the software/algorithm running on the virtual satellite.

In conjunction with the second aspect, an embodiment of the present invention provides a first possible implementation manner of the second aspect, wherein the internal testing tool includes: a behavior monitoring tool and a performance testing tool; the behavior monitoring tool is used to monitor the software /Data flow in the process of running the algorithm on the virtual satellite and operations on the database by the user; the performance testing tool is used to test the performance of the software/algorithm running on the virtual satellite.

In conjunction with the second aspect, the embodiment of the present invention provides a second possible implementation manner of the second aspect, wherein the external testing tool includes: a configuration item testing tool and/or a system testing tool; the configuration item testing tool is used for The configuration item test is performed on the software/algorithm running on the virtual satellite; the system testing tool is used to perform a system test on the software/algorithm running on the virtual satellite.

In conjunction with the second possible implementation manner of the second aspect, the embodiment of the present invention provides the first possible implementation manner of the third aspect, wherein the external testing tool and the satellite control and status monitoring tool all use TCP The /IP protocol exchanges information with the cloud computing platform simulator.

In a third aspect, an embodiment of the present invention provides a method for testing software and algorithms based on virtual satellites, wherein the method is applied to the test platform according to any one of the second aspects, and the method includes: initializing the virtual satellite , the virtual satellite includes a cloud computing platform simulator, a satellite platform simulator and a load simulator, and the cloud computing platform simulator is decoupled from the satellite platform simulator and the load simulator through the data center respectively; With the status monitoring tool, the virtual satellite is monitored and controlled and the software/algorithm is injected, and the satellite platform data and load data of the cloud computing platform simulator are received; monitor the behavior of the software/algorithm, and perform performance testing on the software/algorithm; perform configuration item testing and/or system testing on the software/algorithm running on the virtual satellite through an external testing tool.

The embodiments of the present invention have brought the following beneficial effects:

The present invention provides a virtual satellite, a virtual satellite-based software and algorithm testing platform and method. The platform includes satellite control and state monitoring tools, which are used for monitoring and controlling virtual satellites and injecting software/algorithms, and receiving cloud Satellite platform data and payload data of the computing platform simulator; internal test tools for monitoring the behavior of software/algorithms running on virtual satellites and performance testing of software/algorithms; external test tools for running Perform configuration item testing and/or system testing on software/algorithms on virtual satellites. The virtual satellite includes: a satellite platform simulator for simulating a satellite platform system and outputting satellite platform data; a payload simulator for simulating a payload system and outputting payload data; a cloud computing platform simulator for providing communication with on-orbit satellites The same basic service, and read satellite platform data and load data; among them, the data center is used as an interface to decouple the cloud computing platform simulator from the satellite platform simulator and the load simulator. The invention decouples the cloud computing simulator from the satellite platform simulator and the load simulator through the data center in the cloud computing platform simulator, and integrates the parts other than the cloud computing platform into the virtual satellite as components, which can improve the simulation The integration degree of the device; through monitoring tools and testing tools, efficient sharing and reuse of test resources can be achieved, thereby alleviating the problems existing in existing satellite testing that cannot meet multi-regional coordination, distributed execution, and large-scale parallel testing.

Other features and advantages of the present invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the description, claims and drawings.

In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below, and are described in detail as follows in conjunction with the accompanying drawings.

Description of drawings

In order to illustrate the specific embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the specific embodiments or the prior art. Obviously, the accompanying drawings in the following description The drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

1 is a schematic structural diagram of a virtual satellite provided by an embodiment of the present invention;

2 is a schematic structural diagram of a satellite platform simulator provided by an embodiment of the present invention;

3 is another schematic structural diagram of a virtual satellite provided by an embodiment of the present invention;

4 is a schematic structural diagram of a test platform provided by an embodiment of the present invention;

FIG. 5 is a flowchart of a method for testing software and algorithms based on virtual satellites provided by an embodiment of the present invention.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of them. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

At present, due to the tight coupling of satellite software and hardware in traditional satellite testing, it is impossible to provide a set of software execution environment that is the same as that of in-orbit satellites in pure software. The operating environment is different, the operating mode is different, and there is a problem of inconsistency in the degree of integration. Virtual satellite is a new concept of satellite resource integration system. When users order data through virtual satellite, they do not need to consider the type of satellite itself, but only provide satellite configuration requirements to the system, and virtual satellite can integrate all current satellite resources. Provide users with standardized data products and comprehensive solutions. Based on this, the virtual satellite, the virtual satellite-based software and algorithm test platform and method provided by the embodiments of the present invention can make the virtual satellite program execution environment fully compatible with the orbiting satellite, and are equipped with numerous background simulation programs and load simulation programs. , which provides the application with a consistent view of the operation of a real satellite. The virtual satellite test environment can be loaded and run on demand to meet the multi-regional collaboration, distributed execution, and large-scale parallel testing requirements. The problem of distributed execution, massively parallel test work.

To facilitate understanding of this embodiment, a virtual satellite disclosed in the embodiment of the present invention is first introduced in detail.

Example 1:

This embodiment provides a virtual satellite, the schematic diagram of which is shown in FIG. 1 , including: a satellite platform simulator 120 , a cloud computing platform simulator 110 and a load simulator 130 connected to the satellite platform simulator 120 through a data center 140 , The cloud computing platform simulator 110 is decoupled from the satellite platform simulator 120 and the load simulator 130 by using the data center 140 as an interface.

The cloud computing platform simulator 110 is used to provide the same basic services as the orbiting satellites, and to read satellite platform data and payload data;

The satellite platform simulator 120 is used to simulate the satellite platform system and output the satellite platform data;

The payload simulator 130 is used to simulate the payload system and output payload data.

Specifically, the cloud computing platform simulator 110 exchanges data and instructions with the satellite platform simulator 120 and the payload simulator 130 through the data center 140, respectively. In practical applications, the data center 140 may include a database for simulating the integrated unit part of a real satellite, directly receiving or reading externally stimulated data. Through the data center 140, the coupling relationship between the satellite platform simulator 120, the load simulator 130 and the cloud computing platform simulator 110 is released, so as to realize the integration of parts other than the cloud computing platform into the virtual satellite as components, and to solve the problems caused by simulation The problem of inconsistency in the degree of integration caused by different operating environments and different operating modes of the server.

Both the satellite platform simulator 120 and the payload simulator 130 can simulate satellite platform systems and payloads with different capabilities according to certain configuration parameters, so as to define satellite services for different types of software. The design of these simulators adopts the plug-in-like model, uses the database to define the simulator interface, and uses the simulator as a plug-in component, which can be independently customized and plug-and-play, which greatly improves the application convenience of the simulator in the simulated satellite.

In practical applications, the satellite platform mainly has functions such as thermal control, power supply, attitude and orbit control, measurement and control, and data management. Correspondingly, the satellite platforms have their corresponding simulators. As shown in FIG. 2 , the simulators include a satellite platform simulator 120 and a load simulator 130; wherein, the satellite platform system simulated by the satellite platform simulator 120 includes, for example: Control subsystem, power source subsystem, attitude and orbit control subsystem, propulsion subsystem, measurement and control subsystem, and data management subsystem; the payload system simulated by the load simulator 130 includes, for example, information acquisition subsystem, information transmission subsystem and Information Benchmarking System.

In some implementations, referring to another schematic structural diagram of the virtual satellite shown in FIG. 3 , the cloud computing platform simulator 110 may be a Sputnix virtual machine based on the Sputnix system to provide certain basic services, and the satellite can be deactivated through the Sputnix virtual machine. The coupling relationship between software and hardware enables the cloud computing platform simulator 110 to break away from the limitations of satellite hardware and provide an execution environment that is fully compatible with software-defined satellites flying in orbit. The Sputnix virtual machine is loaded with the same basic services as in-orbit satellites, such as measurement and control services, monitoring management services, data transmission services, injection services, platform data services, and camera services.

Considering that the testing process of the software under test and the algorithm is not related to the data forwarding link, this embodiment can use the data center 140 (in this embodiment, the data center 140 is the database) to simulate the acquisition unit part of the real satellite, and use the database to simulate the acquisition unit part of the real satellite. Directly receive or read the preset measurement and control data transmission simulator 150 , imaging load simulator 131 , satellite platform simulator 120 and other externally stimulated data.

For example, the imaging payload simulator 131 can send the imaging payload data to the database through the camera service; the satellite platform simulator 120 can send the satellite platform data to the database through the platform data service; the database can transmit the data transmission data to the measurement and control through the data transmission service The data transmission simulator 150; the measurement and control data transmission simulator 150 can transmit the measurement and control instructions to the database through the measurement and control service; the database can also simulate the satellite platform simulator 120 and the cloud computing platform through software/algorithms, monitoring management services and injection services, etc. The controller 110 and the payload simulator 130 interact with data commands.

In this embodiment, the coupling relationship between the satellite platform simulator 120, the imaging load simulator 131 and the cloud computing platform simulator 110 is released through the data center 140, so that the parts other than the cloud computing platform are integrated into the virtual satellite as components, Solved the problem of inconsistency in the degree of integration caused by different simulator operating environments and operating modes.

Embodiment 2:

Based on the virtual satellites provided by the above embodiments, this embodiment provides a test platform for software and algorithms based on virtual satellites. As shown in FIG. 4 , the test platform includes the virtual satellites in the above embodiments, and also includes a virtual satellite based The cloud computing platform simulator 110 in the satellite is communicatively connected to the satellite control and status monitoring tool 210, the external test tool, and the internal test tool installed inside the virtual satellite.

The realization principle and the technical effect of the virtual satellite are the same as those of the virtual satellite mentioned in the foregoing implementation 1, and will not be described in detail here.

The satellite control and status monitoring tool 210 is used to perform measurement and control and software/algorithm injection for virtual satellites, and receive satellite platform data and payload data from the cloud computing platform simulator 110 .

Specifically, the satellite control and state monitoring tool 210 monitors and controls virtual satellites, such as monitoring and control of satellite attitude, orbit monitoring and control, on-board time monitoring and control, and remote telemetry. The satellite control and condition monitoring tool 210 may inject software/algorithms into the virtual satellite through an injection service, so that the software/algorithm runs on the virtual satellite. The satellite control and status monitoring tool 210 can also receive satellite platform data and payload data downloaded by the cloud computing platform simulator 110 .

Internal testing tools are used to monitor the behavior of software/algorithms running on virtual satellites and perform performance testing of software/algorithms.

External testing tools for configuration item testing and/or system testing of software/algorithms running on virtual satellites.

In some embodiments, internal testing tools include behavior monitoring tools 232 and performance testing tools 231 . The behavior monitoring tool 232 is used to monitor the data flow of the software/algorithm running on the virtual satellite and the user's operation on the database; the performance testing tool 231 is used to test the performance of the software/algorithm running on the virtual satellite.

In some embodiments, the external testing tools include: configuration item testing tools 221 and/or system testing tools 222 . The configuration item testing tool 221 is used to test the configuration item of the software/algorithm running on the virtual satellite through the external system of the virtual satellite; the system testing tool 222 is used to test the software/algorithm running on the virtual satellite through the external system of the virtual satellite Perform system tests.

The above-mentioned configuration item testing tool 221, system testing tool 222, satellite control and state monitoring tool 210 can all pass through TCP/IP (Transmission Control Protocol/Internet Protocol, Transmission Control Protocol/Internet Protocol) protocol and cloud computing in the virtual satellite. The platform simulator 110 exchanges information.

This embodiment provides a set of satellite software/algorithm execution environments that are fully compatible with on-orbit satellites through virtual satellites, thereby constructing a set of virtual satellite-based software and algorithm testing platforms, which can realize efficient testing of satellite software/algorithm testing resources. The sharing and multiplexing of multi-satellite software/algorithms meet the needs of satellite software/algorithm testing for multi-satellite software/algorithm regional collaboration, distributed execution, and large-scale parallelism.

In the above embodiment, the real satellite and the virtual satellite can be connected to both the real operating environment and the virtual test environment through the data center interface, thus providing a more realistic test environment. When the virtual satellite data is injected into the data center, the virtual satellite and software/algorithm can be tested; when the real satellite is connected to the data center, the real satellite can be directly measured and controlled.

Embodiment three:

Based on the virtual satellite and the virtual satellite-based software and algorithm test platform provided by the above embodiments, the embodiment of the present invention provides a virtual satellite-based software and algorithm testing method, as shown in FIG. 5 , the method includes the following step:

Step S510, initialize the virtual satellite, the virtual satellite includes a cloud computing platform simulator, a satellite platform simulator and a load simulator, and the cloud computing platform simulator is decoupled from the satellite platform simulator and the load simulator through the data center respectively;

Step S520, perform measurement and control and software/algorithm injection on the virtual satellite through satellite control and state monitoring tools, and receive satellite platform data and load data of the cloud computing platform simulator;

Step S530, monitoring the behavior of the software/algorithm running on the virtual satellite through an internal test tool, and performing performance testing on the software/algorithm;

Step S540, perform configuration item test and/or system test on the software/algorithm running on the virtual satellite by using an external test tool.

The above method can realize the integration of the parts other than the cloud computing platform as components into the virtual satellite through the data center, so as to solve the problem of inconsistency in the degree of integration caused by different operating environments and operating modes of the simulator; The test tool provides a set of satellite software/algorithm execution environment that is fully compatible with in-orbit satellites through virtual satellites, thereby building a set of virtual satellite-based software and algorithm cloud test platforms, which can realize the satellite software/algorithm test resources. Efficient sharing and multiplexing to meet the multi-satellite software/algorithm regional collaboration, distributed execution, and massive parallel satellite software/algorithm testing requirements.

The implementation principles and technical effects of the methods provided in the embodiments of the present invention are the same as those in the foregoing embodiments 1 and 2. For the sake of brief description, for the parts not mentioned in the method embodiments, reference may be made to the foregoing method embodiments. corresponding content.

To sum up, the virtual satellite, virtual satellite-based software and algorithm test platform and method provided by the above-mentioned embodiments of the invention, the platform includes: satellite control and status monitoring tools, used for monitoring and controlling the virtual satellite and injecting software/algorithms, And receive the satellite platform data and payload data of the cloud computing platform simulator; internal testing tools, used to monitor the behavior of software/algorithms running on virtual satellites, and perform performance testing of software/algorithms; external testing tools, used For configuration item testing and/or system testing of software/algorithms running on virtual satellites. The virtual satellite includes: a satellite platform simulator for simulating a satellite platform system and outputting satellite platform data; a payload simulator for simulating a payload system and outputting payload data; a cloud computing platform simulator for providing communication with on-orbit satellites The same basic service, and read satellite platform data and load data; among them, the data center is used as an interface to decouple the cloud computing platform simulator from the satellite platform simulator and the load simulator. The invention decouples the cloud computing simulator from the satellite platform simulator and the load simulator through the data center in the cloud computing platform simulator, and integrates the parts other than the cloud computing platform into the virtual satellite as components, which can improve the simulation The integration degree of the device; through monitoring tools and testing tools, efficient sharing and reuse of test resources can be achieved, thereby alleviating the problems existing in existing satellite testing that cannot meet multi-regional coordination, distributed execution, and large-scale parallel testing.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

Units described as separate components may or may not be physically separated, and components shown as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

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

The functions, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a processor-executable non-volatile computer-readable storage medium. Based on this understanding, the technical solution of the present invention can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods of various embodiments of the present invention. The aforementioned storage medium includes: U disk, removable hard disk, Read-Only Memory (ROM, Read-Only Memory), Random Access Memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes.

Finally, it should be noted that the above-mentioned embodiments are only specific implementations of the present invention, and are used to illustrate the technical solutions of the present invention, but not to limit them. The protection scope of the present invention is not limited thereto, although referring to the foregoing The embodiment has been described in detail the present invention, those of ordinary skill in the art should understand: any person skilled in the art who is familiar with the technical field within the technical scope disclosed by the present invention can still modify the technical solutions described in the foregoing embodiments. Or can easily think of changes, or equivalently replace some of the technical features; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be covered in the present invention. within the scope of protection. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (10)

1. A virtual satellite, comprising: the system comprises a satellite platform simulator, a cloud computing platform simulator and a load simulator, wherein the cloud computing platform simulator is connected with the satellite platform simulator through a data center, and the cloud computing platform simulator, the satellite platform simulator and the load simulator are decoupled by taking the data center as an interface;

the satellite platform simulator is used for simulating a satellite platform system and outputting satellite platform data;

the load simulator is used for simulating an effective load system and outputting load data;

the cloud computing platform simulator is used for providing basic services the same as those of an orbiting satellite and reading the satellite platform data and the load data.

2. The virtual satellite of claim 1, wherein the cloud computing platform simulator comprises a Sputnix virtual machine with a base service; loading the basic service same as that of the on-orbit satellite on the Sputnix virtual machine;

wherein the base service comprises at least one of: measurement and control service, monitoring management service, data transmission service, injection service, platform data service and camera service.

3. The virtual satellite of claim 1, wherein the data center comprises a database;

the database is used for simulating an integrated unit part of a real satellite and acquiring data of external excitation.

4. The virtual satellite of claim 1, wherein the satellite platform system simulated by the satellite platform simulator comprises: the system comprises a thermal control subsystem, a power supply subsystem, an attitude and track control subsystem, a propulsion subsystem, a measurement and control subsystem and a data management subsystem.

5. The virtual satellite of claim 1, wherein the payload system simulated by the load simulator comprises: the system comprises an information acquisition subsystem, an information transmission subsystem and an information reference subsystem.

6. A virtual satellite-based software and algorithm test platform, comprising the virtual satellite according to any one of claims 1 to 5, further comprising a satellite control and status monitoring tool communicatively connected to a cloud computing platform simulator in the virtual satellite, an external test tool, and an internal test tool installed inside the virtual satellite;

the satellite control and state monitoring tool is used for carrying out measurement and control and software/algorithm injection on the virtual satellite and receiving satellite platform data and load data of the cloud computing platform simulator;

the internal testing tool is used for monitoring the behavior of the software/algorithm running on the virtual satellite and testing the performance of the software/algorithm;

the external testing tool is used for carrying out configuration item testing and/or system testing on the software/algorithm running on the virtual satellite.

7. The test platform of claim 6, wherein the internal test tool comprises: a behavior monitoring tool and a performance testing tool;

the behavior monitoring tool is used for monitoring data flow of the software/algorithm in the process of running on the virtual satellite and the operation of a user on a database;

the performance testing tool is used for testing the performance of the software/algorithm running on the virtual satellite.

8. The test platform of claim 6, wherein the external test tool comprises: configuring an item test tool and/or a system test tool;

the configuration item testing tool is used for carrying out configuration item testing on the software/algorithm running on the virtual satellite;

the system testing tool is used for carrying out system testing on the software/algorithm running on the virtual satellite.

9. The test platform of claim 8, wherein the external test tool and the satellite control and status monitoring tool each exchange information with the cloud computing platform simulator via a TCP/IP protocol.

10. A virtual satellite based software and algorithm testing method, applied to the test platform according to any one of claims 6-9, the method comprising:

initializing a virtual satellite, wherein the virtual satellite comprises a cloud computing platform simulator, a satellite platform simulator and a load simulator, and the cloud computing platform simulator is respectively decoupled from the satellite platform simulator and the load simulator through a data center;

measuring and controlling the virtual satellite and injecting software/algorithm through a satellite control and state monitoring tool, and receiving satellite platform data and load data of the cloud computing platform simulator;

monitoring the behavior of the software/algorithm running on the virtual satellite through an internal test tool, and performing performance test on the software/algorithm;

performing configuration item testing and/or system testing on the software/algorithms running on the virtual satellite through an external testing tool.

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