CN114531197A

CN114531197A - On-orbit distributed information resource application service system

Info

Publication number: CN114531197A
Application number: CN202210433277.8A
Authority: CN
Inventors: 胡玉新; 张凯; 林智莘; 王振舟
Original assignee: Aerospace Information Research Institute of CAS
Current assignee: Aerospace Information Research Institute of CAS
Priority date: 2022-04-24
Filing date: 2022-04-24
Publication date: 2022-05-24
Anticipated expiration: 2042-04-24
Also published as: CN114531197B

Abstract

The invention provides an on-orbit distributed information resource application service system, which comprises: the service platform layer is used for integrating, packaging and managing computing resources, storage resources, communication resources, data resources and plug-in resources of the distributed on-orbit satellite so as to provide task planning services, data processing services and information extraction services for the on-orbit satellite; the hardware environment layer is used for supporting the service platform layer to carry out operation of software programs required by task planning service, data processing service and information extraction service; and the application plug-in layer is used for developing, integrating and running plug-in resources required by the mission planning service, the data processing service and the information extraction service under the support of the service platform layer.

Description

On-orbit distributed information resource application service system

Technical Field

The invention relates to the technical field of satellite real-time processing of remote sensing satellite data, in particular to an on-orbit distributed information resource application service system.

Background

At present, the inherent modes of traditional ground planning, instruction uploading, space-based observation, data downloading, ground processing and product distribution are still used in the space-based information processing and service mode, and simple processing such as compression of single-satellite load data and target detection and positioning can only be realized on the satellite, so that the novel space-based information service requirements of rapid data acquisition and multi-source multi-scale information fusion cannot be met. In addition, the existing on-board processing system is mainly designed for single-satellite single-load data processing application, is customized according to the characteristics of satellites and loads, has no universality, cannot adapt to diversified information service requirements including task planning, data processing and information extraction, and even cannot meet the application requirements of networked collaborative information services under the condition of multi-satellite networking in the future.

Disclosure of Invention

In view of the above, the present invention provides an on-orbit distributed information resource application service system, including: the service platform layer is used for integrating, packaging and managing computing resources, storage resources, communication resources, data resources and plug-in resources of the distributed on-orbit satellite so as to provide task planning services, data processing services and information extraction services for the on-orbit satellite; the hardware environment layer is used for supporting the service platform layer and the upper application to carry out the operation of software programs required by task planning service, data processing service and information extraction service; and the application plug-in layer is used for developing, integrating and running plug-in resources required by the task planning service, the data processing service and the information extraction service under the support of the service platform layer.

Optionally, the service platform layer comprises: the platform resource management module is used for managing and maintaining the state information of the orbiting satellite and the state information of the load corresponding to the orbiting satellite so as to provide task planning service and data processing service; the processing engine module is used for realizing the aggregation, the scheduling and the execution of task flows respectively corresponding to the computing resources, the plug-in resources, the task planning service, the data processing service and the information extraction service; the data organization management module is used for uniformly storing, updating, transmitting, retrieving and accessing the data resources; the data resources comprise processing data and basic support data which are respectively generated by original observation data, a task planning service provided by an on-orbit satellite and a load, a data processing service and an information extraction service; the satellite group resource management module is used for carrying out networking management on various resources of the distributed on-orbit satellite so as to realize cooperative observation, data synchronization and data fusion of the distributed on-orbit satellite; the safety management module is used for performing identity authentication and lightweight data protection on a user accessed to the orbiting satellite; and the communication service module is used for packaging the interface provided by the bottom layer communication network equipment so as to provide a reliable communication service interface supporting message and file transmission.

Optionally, the data organization management module performs data life cycle management on the original observation data, the processed data and the basic support data; the data organization management module provides a multi-process and/or multi-thread concurrent retrieval and access mode to retrieve and access the original observation data, the processing data and the basic support data.

Optionally, the constellation resource management module implements data synchronization between distributed orbiting satellites, including: the constellation resource management module controls an orbiting satellite to only issue incremental data resources and plug-in resources to adjacent satellite nodes.

Optionally, the constellation resource management module implements data distribution among the distributed orbiting satellites by a distribution mode of periodic broadcast or subscription or query access.

Optionally, the communication service module implements reliable transmission of data resources based on a reception check and retransmission mechanism.

Optionally, the hardware environment layer adopts a card type structure, including: the main control board card is used for supporting the service platform layer and the upper application layer to carry out the operation of software programs required by task planning service, data processing service and information extraction service; the co-processing board card is used for packaging hardware resources with different processing capacities according to standards so as to perform data processing service; and the storage board card is used for storing the data resources and the processing data respectively generated by the task planning service, the data processing service and the information extraction service.

Optionally, the interface type of the master control board card can be dynamically configured according to the requirement of the orbiting satellite; the number of the coprocessing board cards can be dynamically configured according to the data processing requirements of loads corresponding to the orbiting satellites.

Optionally, the application plug-in layer updates the plug-in resource with an incremental update policy.

Optionally, the service platform layer performs task scheduling according to the priority of the task and the currently allocable computing resource.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

fig. 1 schematically shows an architecture diagram of an on-track distributed information resource application service system according to an embodiment of the present invention.

FIG. 2 schematically shows an architectural diagram of a service platform layer according to an embodiment of the invention.

FIG. 3 schematically illustrates an architectural functional block diagram of a service platform layer according to an embodiment of the present invention.

FIG. 4 schematically shows a functional block diagram of a platform resource management module according to an embodiment of the present invention.

FIG. 5 schematically shows a workflow block diagram of a processing engine module according to an embodiment of the invention.

Fig. 6 schematically shows a flow chart of a service auto-aggregation schedule according to an embodiment of the invention.

Fig. 7 schematically shows a flow chart of fault reconstruction according to an embodiment of the invention.

FIG. 8 schematically illustrates a workflow diagram of a data organization management module according to an embodiment of the invention.

FIG. 9 schematically illustrates a workflow diagram for resource publishing and organizational management according to an embodiment of the invention.

Fig. 10 schematically shows a resource broadcast packet processing flow diagram according to an embodiment of the present invention.

FIG. 11 schematically illustrates a flow diagram for multi-star distributed computing resource scheduling, according to an embodiment of the invention.

FIG. 12 is a flow chart for publishing a constellation resource according to an embodiment of the invention.

FIG. 13 is a flowchart illustrating a star data resource query download process according to an embodiment of the present invention.

FIG. 14 schematically shows an application plug-in annotation flow diagram according to an embodiment of the invention.

FIG. 15 schematically illustrates a demand submission, mission planning and data processing flow diagram, according to an embodiment of the invention.

Fig. 16 schematically shows a data distribution flowchart according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The terms "comprises," "comprising," and the like, as used herein, specify the presence of stated features, steps, operations, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, or components.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other suitable relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, it is to be understood that the terms "longitudinal," "length," "circumferential," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced subsystems or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Throughout the drawings, like elements are represented by like or similar reference numerals. And conventional structures or constructions will be omitted when they may obscure the understanding of the present invention. And the shapes, sizes and positional relationships of the components in the drawings do not reflect the actual sizes, proportions and actual positional relationships. In addition, in the present invention, any reference signs placed between parentheses shall not be construed as limiting the claim.

Similarly, in the above description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various disclosed aspects. Reference to the description of the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In view of the defects of the prior art, the embodiment of the invention provides an on-orbit distributed information resource application service system, which integrates resources such as observation, communication, calculation, storage and the like of a distributed on-orbit satellite, performs resource encapsulation, and realizes data processing fusion and information service through automatic aggregation organization of various software and hardware resources. The whole system adopts a platform + plug-in architecture. The adoption of the architecture design has the advantages that on one hand, the system can be universally installed on each satellite, and the unified development, integration and product specification is adopted, so that the multi-satellite networked application is conveniently constructed; on the other hand, the data transmission and processing plug-ins can be customized and developed in a targeted manner according to the satellite load characteristics, and the high-precision processing of the load data is realized by fully utilizing single-satellite computing and storing resources.

As shown in fig. 1, the on-orbit distributed information resource application service system may include, for example, a service platform layer, a hardware environment layer, and an application plug-in layer.

And the service platform layer is used for integrating, packaging and managing computing resources, storage resources, communication resources, data resources and plug-in resources of the distributed on-orbit satellite so as to provide task planning services, data processing services and information extraction services for the on-orbit satellite.

In the embodiment of the invention, the service platform layer is also called a space-based information resource application service platform and is a key for realizing the autonomous operation and information service of the on-orbit distributed information resource application service system. The service platform layer carries out standard encapsulation on computing resources, storage resources, communication resources, data resources and plug-in resources of each satellite platform (including on-orbit satellites and loads), hides technical implementation details, and provides a uniform access scheduling interface of the resources to the outside, so that resource calling and effective separation between resource entities are realized.

And the hardware environment layer is used for supporting the service platform layer and the upper application to carry out the operation of software programs required by the task planning service, the data processing service and the information extraction service.

In the embodiment of the invention, the hardware environment layer adopts a card type structure, which comprises the following steps: a main control board card, a co-processing board card, a storage board card and the like. The main control board card is used for supporting the service platform layer and the upper application to carry out the operation of software programs needed by task planning service, data processing service and information extraction service, namely the processor of the main control board card runs the service platform layer software, so that the bearing of diversified application service capacity is realized. The main control board card is also used for realizing various data and information interaction with the house service computer, the earth observation load and the communication load. The co-processing board is used for encapsulating hardware resources with different processing capabilities according to standards so as to perform data processing services, such as computation-intensive tasks like load data processing. The storage board card is used for storing various data resources, including storage of on-orbit processing products and basic support data generated by providing task planning service, data processing service and information extraction service for various load original data and on-orbit satellites. The interface type of the main control board card can be dynamically configured according to the requirement of the orbiting satellite. The number of the coprocessing board cards can be dynamically configured according to the data processing requirements of the load.

And the application plug-in layer is used for developing, integrating and running plug-in resources required by various task planning services, data processing services and information extraction services under the support of the service platform layer.

In the embodiment of the invention, the application plug-in layer is a resource calling combination mode developed on the service platform layer. The application plug-in layer further encapsulates independent space-based resources facing to the space-based information service, development and integration of task planning, various load data processing, target detection and identification and information fusion plug-ins are realized based on unified standard specifications, and the plug-ins are automatically aggregated into an information service flow and automatically run under the scheduling of the service platform layer.

Therefore, the in-orbit distributed information resource application service system provided by the embodiment of the invention can be universally adapted to each satellite platform. The service platform layer can be universally deployed on the main control board of each satellite platform and can be adapted to the multi-type processor, the application plug-in layer is customized according to the characteristics of the satellite platform and the observed load, and is integrated on the service platform layer according to a uniform interface specification, and various personalized information service flows are customized according to the needs of users.

The on-track distributed information resource application service system shown in fig. 1 will be described in detail with reference to the accompanying drawings.

The core of the design of the on-orbit distributed information resource application service system is a service platform layer, namely a space-based information resource application service platform. The space-based information resource application service platform realizes abstract packaging of various hardware drivers at the bottom layer, and realizes standard satellite resources, satellite-to-ground communication, inter-satellite communication and data storage access interfaces. The method has the functions of computing resource management, data management, plug-in management, flow aggregation and the like. Meanwhile, distributed integration of multi-satellite resources is realized based on an inter-satellite communication network.

As shown in fig. 2 and fig. 3, the service platform layer may include six functional modules, namely, a platform resource management module, a communication service module, a processing engine module, a data organization management module, a constellation resource management module, and a security management module, for example.

And the platform resource management module is used for managing and maintaining the state information of the on-orbit satellite and the state information of the load so as to provide task planning service and data processing service.

Specifically, the platform resource management module manages and maintains the state information of the satellite platform and the load working state, and facilitates the load data processing, autonomous task planning and other related applications to access the satellite related resource data. The platform resource management module receives load observation original data pushed to the earth observation load and pushes the load observation original data to each processing module for processing. The platform resource management module constructs load proxy service according to the load type borne by the satellite, realizes unified description of load parameter information and state information, provides a load control interface, and issues an observation task to the load according to the request of an upper application plug-in. That is, the platform resource management module encapsulates various resources provided by the satellite and the payload to form an interface for resource access and control. The application plug-ins at the upper level can access and control resources using standard interfaces without concern for the underlying details.

As shown in fig. 4, the platform resource management module may include, for example, two parts, resource proxy service and system hardware resource management.

And the resource proxy service is used for managing and maintaining the state information of the satellite platform and the load working state. The method and the system can acquire information such as satellite orbit, attitude, energy, storage and the like through interaction with a satellite platform, and store and manage various data, so that the load data processing, task planning and other related applications can conveniently access the platform resource data. Meanwhile, load proxy services are respectively constructed according to the load types borne by the platform, so that unified description of load parameter information and state information is realized, a load control interface is provided, and an observation task is issued to the load according to the request of an upper application plug-in.

And the system hardware resource management is used for being responsible for switching control and working state switching of various board cards of a hardware environment layer, and controlling the various board cards to sequentially complete the startup and shutdown according to a switching instruction sent by an upper application. The system hardware resource management realizes the monitoring of the hardware resource state, maintains the system available resource information list, and controls the switching of various board cards and the switching of working states based on the system available hardware resource list. The monitorable states include the operating state of the processor, the voltage, temperature, etc. of the various primary chips. Whether system hardware has faults is judged by analyzing the acquired monitoring information, and the fault hardware is subjected to operations such as power failure or restarting, so that fault isolation and recovery are realized. And on the hardware equipment level, monitoring the state of each board card by adopting a hardware watchdog, and restarting the hardware equipment when the communication between the board cards and the watchdog is abnormal. And when the hardware is judged to have permanent fault, isolating the equipment.

In addition, the system hardware resource management sends the acquired hardware state information to the satellite platform and downloads the hardware state information to the ground, so that a decision basis is provided for system fault judgment and fault-tolerant reconstruction. And after a system reconfiguration instruction is received, modifying the system available resource information list, and completing function reconfiguration on chips such as an FPGA (field programmable gate array).

And the processing engine module is used for realizing the aggregation, the scheduling and the execution of task flows respectively corresponding to the computing resources, the plug-in resources, the task planning service, the data processing service and the information extraction service.

Specifically, the processing engine module implements scheduling and execution of all processing processes from the computing resources, application plug-ins to the business process. The plug-in is well packaged executable software or a function library which can realize specific functions, a plurality of plug-ins can be aggregated to form a complete business flow, and a request can be cooperatively completed according to a certain rule according to user requirements. The aggregation of the processes can utilize smaller, simpler and easily-executed lightweight plug-ins to create complex processes which are richer in functions and easier to customize by users, so that various related plug-ins which are loosely coupled and dispersed on different on-track platforms can be organically organized into a more usable complete process, and further, complex applications are supported. The processing engine module realizes scheduling of computing resources such as a CPU, an FPGA, a GPU and the like, supports load balancing control and priority scheduling, has functions of registering, upgrading, deploying, logging out, version management and the like of various processing and service plug-ins, designs an on-orbit plug-in increment updating mechanism aiming at bandwidth bottleneck of an uplink, realizes customization of a flow based on a uniform flow description language, and automatically creates, starts and operates the flow.

As shown in fig. 5, the processing engine module mainly includes a computing resource scheduling unit, a plug-in management unit, and a flow aggregation unit.

In the embodiment of the invention, the computing resource scheduling unit realizes uniform pooling management of various computing resources borne by system hardware, performs reasonable resource allocation and balance control, and realizes the transparency of specific computing nodes to service processing components. The computing resource scheduling unit defines a uniform interface for various application plug-ins to access computing resources, shields the hardware difference among different types of computing equipment, and provides a standardized parallel computing environment for a computing basic platform.

The computing resource scheduling unit can complete the state monitoring of the processing module and the scheduling execution of the task. The load monitoring unit of each processing module is responsible for collecting the state information of the processing module, including the resource, the memory utilization rate, the task execution condition and the like, and sending the state information and the heartbeat signal of the processing module to the computing resource scheduling unit. And the computing resource scheduling unit maintains the current available resource list according to the heartbeat signals of the processing modules, so that the isolation processing of the unavailable resources is realized.

When there is a task in queue in the job task queue, the computing resource scheduling unit obtains the task with the highest priority in the queue, analyzes the resource demand information, allocates computing resources according to the current available resources, and schedules the task to the processing module for processing. And a task execution unit of the processing module is responsible for receiving and scheduling the processing task, and regularly sends a task execution state to the computing resource scheduling unit in the task execution process. And after the task is executed, the computing resource scheduling unit realizes the recovery of the computing resources.

In the embodiment of the invention, the plug-in management unit realizes the functions of registering, upgrading, deploying, logging out, version management and the like of various processing and service plug-ins, and supports the operations of inquiring, retrieving and the like on the registered plug-ins. And the application plug-ins are developed according to the application development standard requirements of the space-based information resource application service platform, and are uniformly integrated and managed by the plug-in management unit.

Given the bandwidth limitations of the satellite uplink, it is quite difficult to achieve a full application plug-in under the rail members, so registration of service plugs is done primarily pre-installed prior to satellite transmission. Under the rail piece, the upgrading, the deployment, the logout and the like of the plug-in are mainly completed, and an on-rail plug-in increment construction mechanism is specially designed for the purpose.

When the application plug-in is registered, the plug-in source code and the description information are submitted to a ground plug-in management unit system, and the plug-in executable program and the dependency library are deployed to the position designated by the space-based information resource application service platform. The plug-in description information is shown in the following table, the parameter template of the plug-in includes an input and output parameter list of the plug-in and a processing parameter requirement, and the plug-in operation resource requirement includes the required number of computing nodes, the number of processes, the memory size, the priority and the like, as shown in the following table 1.

TABLE 1

And when the plug-in logs out, changing the state of the plug-in description information in the plug-in description table into abolish, and deleting the plug-in entity under the corresponding deployment path.

In the embodiment of the present invention, the process aggregation refers to forming a service process for implementing a specific function according to process configuration information predefined by a user by using a registered plug-in, and archiving and managing the process configuration information. The process aggregation unit manages and implements the workflow based on the workflow technology, is responsible for creating, starting, running and initiating tasks of process instances, tracking process state information and controlling an execution process, and is a specific implementer for executing and managing the workflow. The flow task queue is used for storing flow orders submitted by upper-layer applications, has a priority queuing function and supports a dynamic queuing strategy based on priority.

As shown in FIG. 6, the process includes two processes of automated business order generation and workflow scheduling for a business process.

The process of automated business order generation may be: and associating corresponding processing service flows in the flow template library according to the processing task information of the task plan. And calling an automatic order production unit according to the planned task parameters, modifying related working parameters in the template, such as starting time, the number of processing nodes, data distribution parameters, output requirements and the like, distributing order priorities according to user requirements and the like, and finally generating a processing service order and submitting the processing service order for execution.

The workflow scheduling process of the business process may be: and finishing the workflow scheduling of the business process by the process aggregation unit according to the processing business order submitted previously. The process aggregation unit manages and implements the workflow based on the workflow technology, is responsible for creating, starting, running and initiating tasks of process instances, tracking process state information and controlling an execution process, and is a specific implementer for executing and managing the workflow. The flow aggregation unit firstly extracts a flow order in the flow queue, generates a flow instance, verifies the validity of a processing plug-in corresponding to a task in the flow, and submits the task to the computing resource scheduling unit for execution. And the flow aggregation unit monitors the task execution condition of each task node through the computing resource scheduling unit and updates the execution state of the flow.

In addition, when the system works on the track, the task nodes of data processing may be affected by factors such as space radiation, and the like, so that temporary faults occur on part of the processing nodes.

FIG. 7 schematically shows a flow diagram of a faulty task reconstruction according to an embodiment of the present invention.

As shown in fig. 7, a working heartbeat monitoring mechanism may be utilized, and the computing resource scheduling unit may quickly locate the failure processing node, perform online reconstruction of the computing task, and recover from the problem of the local failure. When the whole function of the execution node is failed, such as no work heartbeat or the processing process is trapped in a permanent fault and cannot recover work on the execution node, the computing resource scheduling unit firstly removes the fault execution node, inquires the processing task information, and schedules the processing task to the redundant execution node to continue to operate, thereby realizing reconstruction and recovery of the processing task.

The data organization management module is used for uniformly storing, updating, transmitting, retrieving and accessing the data resources; the data resources comprise original observation data, processing data and basic support data which are respectively generated by the on-orbit satellite and the load providing mission planning service, the data processing service and the information extraction service.

Specifically, the data organization and management module performs unified organization management, updating, transmission and access service on the load original observation data, the processed product (processed data) and the basic support data, and realizes automatic data life cycle management. The data organization management intelligently stores various data according to the service requirements and the running state, so that the data can be efficiently accessed and the storage space can be efficiently utilized; and providing data retrieval and access service, classifying and storing the data by the data organization and management module, and presetting a data storage directory rule. Wherein, the data product is obtained by on-board processing; basic support data, characteristic data and the like are mainly pre-loaded before satellite launching, and partial target data are obtained through ground injection or on-satellite autonomous learning.

As shown in fig. 8, the process primarily includes data storage and organization, data retrieval and access, and data lifecycle management.

In the embodiment of the present invention, abstracting a general data organization management process for various data organization management requirements mainly includes: data warehousing, data acquisition, uploading updating, remote deletion and modification and the like.

And (4) data storage: and maintaining and managing newly generated or newly added data, automatically extracting data keyword information, cataloging the data, verifying data files, and then warehousing and managing.

Data acquisition: and receiving a data access request, inquiring and acquiring corresponding data and returning the data to the request end.

And (3) updating data: and if the data state changes, initiating a data updating operation.

Remote deletion and modification: and the ground operation and control personnel subjected to authority verification are supported to call a data access and management operation function to complete a corresponding deletion and modification command.

In the embodiment of the present invention, the data retrieving and accessing process may be: and providing data retrieval and access service for the upper application plug-in and the remote resource access agent based on the data storage and organization module, and supporting online browsing of data. The data retrieval comprises modes of attribute information, geographic information or fuzzy retrieval and the like; for data information with small data volume, the retrieval service directly returns a result; for data with large data volume, such as image products, the upper layer application plug-in needs to directly access the storage system according to data address information. In order to improve the retrieval efficiency, the platform provides a metadata ordering and caching mechanism to improve the access hit rate.

In the embodiment of the invention, dynamic life cycle management is carried out on the satellite data. In the life cycle management mechanism, the factors of importance, use frequency, generation time, data type and the like of data are fully considered to ensure that the most valuable data are saved in the system. And calculating the storage value of the data according to the generation time, the access frequency and the like of the product data. After each platform is started, if the residual storage capacity of the system is too low and an alarm is given, a data automatic cleaning process is started, the value of all product data is calculated, and low-value data is cleaned according to a preset strategy.

And the constellation resource management module is used for networking and managing various resources of the distributed on-orbit satellite so as to realize cooperative observation, data synchronization and data fusion of the distributed satellite.

Specifically, the constellation resource management module realizes networking management on various resources of the distributed in-orbit satellite, abstracts and encapsulates resources of other available satellite platforms in the network, so that efficient utilization and access on other satellite resources are realized, and basic support is provided for multi-satellite in-orbit cooperative task planning and information fusion service. The publishing mode of the resources can be divided into three modes of regular broadcasting, subscription and inquiry access, received remote satellite resource description information can be stored and managed by establishing a directory service, a localized remote resource use access service is provided for upper-layer application by establishing a remote resource access agent, and a remote data access service is supported.

The star resource management module comprises a resource publishing and organizing management and a remote resource access agent.

As shown in fig. 9, in the embodiment of the present invention, the resource publishing mechanism may be: the local resources are published in the modes of regular broadcasting, subscription, query access and the like. The platform can adopt a proper issuing mode according to application requirements, and utilization efficiency of inter-satellite communication bandwidth is improved. In order to support combined task planning and multi-source information fusion, the released resource information comprises satellite attitude and orbit state information, storage and energy allowance, observed load resource state, data product metadata information and the like. The local resource release adopts a single-hop mode to broadcast local resource information to adjacent nodes, and the resource information broadcast is triggered by a local resource information change event or a service request message. Compared with the last broadcast, the resource information broadcast only sends the incremental information each time, thereby inhibiting the repeated delivery of the service message, avoiding the waste of network bandwidth and accelerating the discovery speed of resources. And each satellite simultaneously forwards the resource information of other satellites received by the satellite to the adjacent nodes, and when the routing topology of the satellite network changes, all the resource information is sent to the newly added nodes. The locally issued resource information contains the validity period of the resource, and the resource information is invalid after the time is out.

The remote resource organization management may be, for example: a directory service is established to deposit and manage the received remote resource description information.

Specifically, after receiving the satellite resource broadcast information packet, the data packet is parsed.

As shown in fig. 10, the remote resource organization manages to save the received other platform resource information by establishing a multi-star resource information directory. When the resource is expired and expired, the resource is deleted in the multi-satellite resource information directory. The remote resource organization and management broadcasts the currently collected resource information of other platforms to the adjacent nodes in a single-hop mode, so that the satellite resource information can be rapidly released to the whole satellite network. Before broadcasting, the satellite resource information to be broadcasted is screened, and the mutual forwarding of the same resource information is avoided.

In embodiments of the present invention, the remote resource access broker comprises a remote data access broker, a publish-subscribe management, and a multi-star distributed computing service.

The remote data access agent may for example be: and after obtaining the meta information of the required remote data, the user accesses the remote data according to actual requirements. And after receiving the data access request of the user, sending the data access request of the user to a remote data access agent. And after the remote data access agent is matched with the corresponding remote satellite according to the metadata information, the data access request is sent to the remote satellite through the inter-satellite link. The remote data access agent of the satellite acquires the required data and transmits it to the user.

The goal of using a publish-subscribe mechanism is to efficiently distribute useful information to truly needed nodes, especially on satellites where inter-satellite and inter-satellite communication resources are at a premium. The publish-subscribe mechanism has the characteristics of loose coupling, many-to-many and asynchronous communication, can effectively avoid the waste of communication bandwidth and realize the real efficient utilization of communication resources.

Specifically, the space-based information resource application service platform provides a publishing and subscribing mechanism of information for the terminal user to use. The subscription and publication model is composed of a publisher, a subscriber and an event agent service unit. When the data to be published is small, a direct subscription mode can be adopted, namely an event agent service unit is established in a satellite group resource management module of each satellite, subscription service information of a user is received, information publishing of an upper application plug-in is received, after the publishing and the subscription information are matched, the information is sent to the event agent service unit of the satellite where the subscriber is located, and then the information is sent to an upper application program of the subscription information through the agent. The event agent service unit has the functions of subscription management, notification service, event monitoring, event matching and the like. The application plug-in submits the subscription information to an event proxy service unit of the satellite, the event proxy service unit is associated with the application plug-in ID and then is subjected to unified cache management, the subscription type and the image type are analyzed, and then the subscription information is sent to the event proxy service unit of the corresponding satellite for management. After the load data processing plug-in of each satellite processes the load data, metadata information of a processing result is published to an event proxy server of the satellite, the event proxy server analyzes the metadata information and matches the metadata information with the subscription request, if the metadata information is matched with the subscription request, the processing result is sent to the event proxy server of the satellite where a subscriber is located, and the proxy server informs an application plug-in initiating the subscription request to read the data. If the application plug-in is not subscribed to certain information any more, a subscription cancellation notice is sent to the event proxy server, and the event proxy server of the corresponding remote satellite is informed to cancel the subscription.

The multi-satellite distributed computing service utilizes the spare computing power of neighboring satellites in the network to assist in completing computing tasks.

As shown in fig. 11, the multi-star distributed computing service framework comprises 3 units of task management, resource management and task receiving and execution.

The task management unit is responsible for receiving distributed computing task information submitted by the application plugins, and the distributed computing task information comprises plug-in execution information, computing input information, computing capability requirements, memory use requirements, storage requirements, latest completion time requirements and the like. And the task management unit receives the computing task and then informs the computing resource screening unit to screen the remote satellite resources, completes task scheduling according to the screening result, receives the task execution result and counts the task completion condition and the resource utilization condition.

The resource management unit screens out an available resource list according to the available computing resource, the memory, the stored resource information, the communication link quality, the available resource duration and other information of the adjacent satellite platform, monitors the resource state and inquires the plug-in deployment information of the platform in the list. Firstly, whether the information is stored or not is searched, if not, the plug-in deployment condition of the platform is inquired through a remote resource inquiry agent, and finally, an available resource list meeting the remote computing requirement is screened out.

The task receiving and executing unit is responsible for receiving the calculation task information and confirming whether the task can be executed. If the task is executable, submitting the task to a processing engine for scheduling execution, and periodically sending task execution state information and a heartbeat signal in the task execution process. And after the execution is finished, the execution result is sent to the task management unit of the task initiating platform. If the task cannot be executed, the remote task management unit is informed to reschedule.

And the safety management module is used for performing identity authentication and lightweight data protection on a user accessing the orbiting satellite.

The safety authentication mainly refers to identity authentication of users accessed through a satellite-ground communication network, illegal invasion is intercepted, a user authorization access mechanism is designed, and inter-satellite and satellite-ground service seamless switching of user authentication information is supported, so that continuity and reliability of service access are ensured, and service efficiency is improved. The lightweight data protection realizes signature protection on service data and prevents the data from being stolen or tampered.

The security management module may include, for example, two parts, security authentication and data lightweight protection.

In the embodiment of the invention, the security authentication service comprises two parts of user management and identity authentication. The user management provides the manager with functions of user addition, user information editing, user locking and unlocking, user deletion, user login password encryption mode storage and supports functions of authority addition, authority information editing and authority deletion. All kinds of users eventually need a certain identity to request the on-track processing and resource service system to provide a specific service, so the identity and the authority of the user must be verified. The safety authentication service realizes authentication of the identity and the authority submitted by the user, and only the user passing the authentication can start the subsequent work flow. The platform allows an administrator and various types of users with different authorities to log in and access, so that authorization access control needs to be performed on the users, and the users are guaranteed to access corresponding resources according to authority division.

The space-based information resource application service platform realizes the unified management of the space network entity identity; the distributed network access identity authentication protocol is used, so that the security authentication efficiency is improved; a single sign-on mode, a space trust transfer mechanism and a safety switching mechanism are adopted, and multiple accesses of single authentication and service seamless switching between satellites are supported, so that the continuity and reliability of service access are ensured, and the service efficiency is improved.

In the embodiment of the present invention, the lightweight data protection mechanism may be: in order to protect the security of inter-satellite and inter-satellite-ground communication data, a hierarchical multi-class lightweight data self-protection method needs to be explored, and the security of the data can be ensured from business requirements. The data protection algorithm can adopt algorithms such as digital signature apportionment, TESLA and the like.

The data transmission process of the lightweight data protection mechanism is as follows:

firstly, determining authority information of a user and data, creating a security attribute label for a data packet according to the authority information, and filling an authority information field.

Then, other security attribute tag information fields are selected and filled in the data packet, the data packet and the tag are digitally signed and the signature field is filled in.

And finally, delivering the processed data to a communication service module for transmission.

And when the space-based information resource application service platform of the other satellite receives the protected data, performing signature verification processing, and sending the verified data to the upper layer application.

And the communication service module is used for packaging the interface provided by the bottom layer communication network equipment so as to provide a communication service interface.

The communication service encapsulates the interface provided by the bottom communication network equipment, shields complex network communication details, enables decoupling of upper layer application and bottom layer communication links to be realized, provides a communication service interface for the upper layer, and realizes efficient and reliable communication between the satellites and the earth. The communication service is distributed based on the priority and the current available communication capacity according to the application, and the dynamic adjustment of the priority of the application service is supported; a transparent data transmission service is provided.

The communication service comprises a transmission task management part and a data transceiving management part 2.

In the embodiment of the invention, the transmission task management is responsible for the use and distribution of the communication link, and the upper application plug-in provides a use application when needing to use the communication network. The transmission task management is responsible for auditing the link use application and distributing the link. The specific functions include: the system is responsible for uniformly managing inter-satellite and inter-satellite-ground communication links, receiving a communication request of an application plug-in, and distributing the communication request based on priority and current available communication capacity according to an application; and dynamic adjustment of the priority of the application service is supported. The transmission task manages the periodic synchronous inter-satellite routing topology with the interconnected communication equipment, and maintains a topology routing table, including information such as hop count, link quality, link service condition and the like; and responding to a routing query request of the upper application, and feeding back the current routing topology to the application.

In the embodiment of the invention, the data receiving and sending management needs to complete a large-capacity data transmission function, and is an important guarantee for realizing configuration data uploading, application plug-in updating, multi-platform information fusion and user terminal product issuing. The data receiving and transmitting management effectively solves the problems of long delay and high error rate in the inter-satellite link by establishing a receiving check and automatic retransmission mechanism, ensures the efficient and accurate transmission of data files, supports breakpoint continuous transmission in addition, ensures that the last transmission breakpoint can be accurately continuous when the link is established again, avoids repeated start and redundant transmission, improves the transmission efficiency, and even can ensure the data transmission efficiency under the extremely severe link environment.

After the upper layer application obtains the link use authority, the data is serialized through complex parameters and added with check bits, and then the data is sent to a data sending cache queue. Meanwhile, the data transceiving management sends a message to inform the opposite terminal to start a receiving mode, waits for a reply confirmation, sequentially calls a bottom layer driving program to download the data in the cache queue after receiving the confirmation message, sends an end mark message after the sending is finished, waits for the opposite terminal to reply a packet loss retransmission message, and repeats the steps until the receiving completion message is received and the transmission is finished.

And the receiving end sequentially receives and caches the data information sent by the bottom-layer communication module, analyzes the data packet, completes the deserialization processing of the complex parameters, checks the buffer queue after receiving the sending end message of the data receiving and sending management, informs the data receiving and sending management of the message packet information which is transmitted by mistake and lost, and circulates in such a way until the receiving is complete, sends the receiving end message and finally informs the corresponding upper-layer application to take away the data.

The typical workflow based on the above-mentioned on-orbit distributed information resource application service system comprises: the method comprises a star resource issuing process, a star data resource inquiring and downloading process, an application plug-in uploading process, a demand submitting process, a task planning and data processing process and a data distribution process.

In the embodiment of the present invention, the flow of publishing the constellation resource may be, for example: after the communication link is established by the satellites in the constellation through the inter-satellite routing equipment, the satellites and the load state information are mutually synchronized, so that the satellites in the constellation can acquire the satellite and load resource information in the whole network, and conditions are created for planning the multi-satellite cooperative task after the satellites receive the user requirements.

In order to enable the satellite resource information to be released to the whole constellation as soon as possible and avoid bandwidth waste, the adopted strategy is that the satellite only releases the resource information to the adjacent node (one hop), after each satellite receives the adjacent node information, the current constellation satellite resource information acquired by the satellite is forwarded to the adjacent node, and only incremental data resources and changed data resources are sent during forwarding, so that the satellite resources are rapidly released in the whole constellation.

As shown in fig. 12, the flow of publishing the star group resource is described as follows:

(1) the space-based information resource application service platform inquires information such as satellite orbit, attitude, energy and storage collected by the platform, and information such as load imaging capability, working plan and state.

(2) The platform regularly acquires the routing topology information of the constellation and issues the satellite resource information to the adjacent nodes.

(3) And each satellite space-based information resource application service platform analyzes the satellite resource information received by the satellite and organizes and manages the satellite resource information in a unified way.

(4) The platform periodically inquires the constellation routing topology information, if the topology connection relation is not changed, the step (5) is carried out, and if not, the step (6) is carried out.

(5) And (4) the platform forwards the local satellite and the remote resource increment information collected by the local satellite to the adjacent nodes periodically or when the resource information changes, and turning to (3).

(6) And the satellite updates the remote resource information and deletes the invalid resource.

(7) And (3) the satellite forwards the satellite and the remote resource information collected by the satellite to the newly added adjacent node, and then the operation is carried out.

In the embodiment of the present invention, the flow of querying and downloading the constellation data resource may be: after a user accesses the satellite space-based information resource application service platform through the satellite-ground link, all resources and services owned by a satellite group where the satellite is located can be obtained and used. And the space-based information resource application service platform provides a service for inquiring and downloading the star data resources for the accessed users. After receiving the query request, the platform determines a constellation retrieval range according to the request type, sequentially retrieves each satellite in the constellation range, acquires data meeting the requirements, and downloads the data to the user terminal.

As shown in fig. 13, the flow of the star data resource query download is described as follows:

(1) and the satellite space-based information resource service platform receives the user data retrieval request and analyzes the user request.

(2) And the space-based information resource service platform determines the satellite range for executing data retrieval in the constellation according to the user request type and the remote resource information collected by the satellite.

(3) And if the local star data needs to be searched, calling data organization and management to search data information. And after the data meeting the user requirements are retrieved, the data are sent to the user terminal through the satellite-ground link.

(4) And inquiring the remote resource information accessible by the satellite, and sequentially sending remote data retrieval requests to the satellites within the retrieval range.

(5) After receiving the data retrieval request, the remote satellite inquires the data resource information of the local satellite and judges whether the data exists or not. If the data exists, the data is transmitted to the request initiating satellite through the inter-satellite link, otherwise, the data returns to be absent.

(6) And after the request initiating satellite receives the data information sent by the remote satellite, the data is sent to the user through the satellite-to-ground link.

In the embodiment of the present invention, the process of the application plug-in uploading may be: the user can customize the application plug-in according to the self business requirement, the space-based information resource service platform provides the application plug-in annotating service for the user, and supports the user to submit the self-defined flow description information. Due to the fact that uplink resources on the satellite are quite limited, version updating cost of the application plug-in is large. In order to more efficiently utilize the satellite-to-ground communication link, an incremental update strategy is adopted when plug-in updates are applied. Firstly, an application plug-in code management library is established in a ground center, when a user updates a code, the ground center generates code increment information, and a plug-in upgrade patch is obtained after compression processing. And when the satellite passes a border, a plug-in upgrading patch is injected on the satellite-ground link. And after the plug-in management unit of the space-based information resource application service platform acquires the plug-in updating patch, updating the source code and the code version library, recompiling the source code, generating an executable program and verifying the executable program.

As shown in fig. 14, the application plug-in annotation process is described as follows:

(1) the user submits the source code.

(2) And the ground center compares the source code with the previous version to generate incremental source code information.

(3) And compressing the incremental source code information to generate an incremental source code patch and annotating the incremental source code patch through the satellite-to-ground link.

(4) And the space-based information resource service platform acquires the plug-in updating patch, decompresses and updates the source code, and updates the code version library.

(5) And compiling the source code, generating an executable program and verifying and confirming.

(6) And returning the plug-in updating state information to the ground center through the satellite-ground link.

(7) And the ground center updates the version state of the on-satellite code base and keeps synchronous with the version of the on-satellite application plug-in.

(8) And the user logs in the ground center to check the update state of the application plug-in.

In the embodiment of the present invention, the flow of requirement submission, task planning and data processing may be: any satellite in the constellation can provide user access service, and a user can browse satellite resource information and submit a demand. And after receiving the user requirement, the space-based information resource application service platform of the satellite performs task planning according to the acquired satellite group resource state information of the satellite, and sends a task planning scheme to the satellite executing the observation task after the planning is finished. Each satellite executing the task sends the task plan to the satellite comprehensive electron, and the satellite comprehensive electron controls the load to observe the earth. And after receiving the original observation data sent by the load in real time, the system initiates product production, sends the production result to the main satellite according to the task planning requirement for data fusion processing, and generates information required by the user.

FIG. 15 schematically illustrates a demand submission, mission planning and data processing flow diagram, in accordance with an embodiment of the present invention.

As shown in fig. 15, the flow of requirement submission, task planning and data processing is described as follows:

(1) and the user logs in the satellite space-based information resource service platform after authorized authentication.

(2) And the user inquires the satellite group resource information, and if the required information is not retrieved, the user submits the requirement to the satellite.

(3) And after receiving the observation requirements of the user, the space-based information resource application service platform analyzes and acquires the state information of the constellation, and calls a task planning plug-in to carry out task planning.

(4) And the space-based information resource application service platform sends the task planning scheme to each task-executing satellite.

(5) And after each satellite space-based information resource application service platform receives the task planning scheme, judging whether the task planning scheme can be executed according to the satellite load working information. If the task planning scheme can be executed, the task planning scheme is sent to the star affair comprehensive electron, and confirmation is returned; if the execution cannot be performed, the rejection information is returned.

(6) And (5) the space-based information resource application service platform of the task initiating satellite analyzes the return information of each satellite, and if the scheme is confirmed, the step (9) is carried out.

(7) If the scheme is rejected, whether the requirement is overtime is judged. If the demand is overtime, the method is ended.

(8) And if the requirement is not overtime, performing task planning again, sending to each task-executing satellite, and turning to (5).

(9) And the observation load of the task execution satellite executes task planning, simultaneously sends the original observation data to the in-orbit distributed information resource application service system for data processing, and transmits the processing result according to the task planning requirement.

(10) After the processing results of all the satellites are gathered, the main satellite completes data fusion processing to generate information required by the user.

In the embodiment of the present invention, the data distribution process may be, for example: and the space-based information resource application service platform acquires and processes various types of load data, generates data information required by the user, and then distributes the data information to the user through a satellite-to-ground link. After the user submits a demand or a data subscription request, the platform initiates work flows of task planning, earth observation, data processing and the like, long time is consumed, the duration of the user accessing the space-based information resource application service platform through the satellite-earth link is usually not more than 10 minutes, and therefore the user can obtain required data information only when accessing the platform again.

After the user accesses the satellite, the space-based information resource application service platform broadcasts the user login information in the constellation, and after each satellite receives the user login information, the user subscription data cached by the satellite is sent to the user.

As shown in fig. 16, the data distribution flow is described as follows:

(1) and the user logs in the space-based information resource service platform after passing the verification.

(2) The space-based information resource application service platform inquires the routing information of the remote satellites accessible by the satellite and sequentially sends the user login information to the satellites.

(3) And the space-based information resource application service platform inquires user requirement information and data subscription information stored by the satellite and searches whether the data required by the user exists.

(4) And after data required by the user is retrieved, the data is sent to the user terminal through the satellite-ground link.

(5) And each satellite space-based information resource application service platform analyzes the received user login information, inquires user demand information and data subscription information stored by the satellite, and retrieves whether the user demand information and the data subscription information are provided with data required by the user.

(6) After data needed by a user is retrieved, the data are sent to a space-based information resource application service platform of a user login satellite through an inter-satellite link, and the satellite platform downloads the data through a satellite-to-ground link.

(7) And after the data downloading is finished, sending a data downloading completion notice to a space-based information resource application service platform of the data source satellite. And if the data downloading is not finished before the user is offline, returning the downloading failure.

(8) Each satellite updates the state information after receiving the data downloading completion notice; and if the download completion notification is not received, maintaining the data state information unchanged.

In summary, the in-orbit distributed information resource application service system provided by the embodiment of the invention can simultaneously meet the application requirements of multi-satellite cooperative task planning, single-load data processing, multi-satellite fusion and the like on one hardware system. In addition, the system has strong expandability and adaptability and can be suitable for different types of remote sensing satellites.

The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams or flowchart illustration, and combinations of blocks in the block diagrams or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions. It will be appreciated by a person skilled in the art that features described in the various embodiments of the invention may be combined and/or coupled in a number of ways, even if such combinations or couplings are not explicitly described in the invention. In particular, various combinations and/or subcombinations of the features described in connection with the various embodiments of the invention may be made without departing from the spirit and teachings of the invention. All such combinations and/or associations fall within the scope of the present invention.

Claims

1. An on-orbit distributed information resource application service system, comprising:

the service platform layer is used for integrating, packaging and managing computing resources, storage resources, communication resources, data resources and plug-in resources of the distributed on-orbit satellite so as to provide task planning services, data processing services and information extraction services for the on-orbit satellite;

the hardware environment layer is used for supporting the service platform layer and the upper application to carry out the operation of software programs required by task planning service, data processing service and information extraction service;

and the application plug-in layer is used for developing, integrating and running plug-in resources required by the mission planning service, the data processing service and the information extraction service under the support of the service platform layer.

2. The on-orbit distributed information resource application service system of claim 1, wherein the service platform layer comprises:

the platform resource management module is used for managing and maintaining the state information of the orbiting satellite and the state information of the load corresponding to the orbiting satellite so as to provide the task planning service and the data processing service;

the processing engine module is used for realizing the aggregation, the scheduling and the execution of task flows respectively corresponding to the task planning service, the data processing service and the information extraction service from computing resources and plug-in resources;

the data organization management module is used for uniformly storing, updating, transmitting, retrieving and accessing the data resources; wherein the data resources comprise raw observation data, processing data and basic support data respectively generated by the on-orbit satellite and the load providing mission planning service, the data processing service and the information extraction service;

the satellite group resource management module is used for carrying out networking management on various resources of the distributed on-orbit satellite so as to realize cooperative observation, data synchronization and data fusion of the distributed on-orbit satellite;

the safety management module is used for performing identity authentication and lightweight data protection on a user accessed to the orbiting satellite;

3. The on-orbit distributed information resource application service system of claim 2, wherein the data organization management module performs data lifecycle management on the raw observation data, the processed data, and the underlying support data;

the data organization management module provides a multi-process and/or multi-thread concurrent retrieval and access manner to retrieve and access the raw observation data, the processed data, and the underlying support data.

4. The in-orbit distributed information resource application service system of claim 2, wherein the constellation resource management module implements data synchronization between distributed in-orbit satellites, comprising:

the constellation resource management module controls an orbiting satellite to only issue incremental data resources and plug-in resources to nodes close to the orbiting satellite.

5. The in-orbit distributed information resource application service system of claim 2, wherein the constellation resource management module implements data distribution among the distributed in-orbit satellites by a distribution means of periodic broadcast or subscription or query access.

6. The on-orbit distributed information resource application service system of claim 2, wherein the communication service module enables transmission of data resources based on a receive checksum retransmission mechanism.

7. The on-orbit distributed information resource application service system of claim 1, wherein the hardware environment layer adopts a card-type structure comprising:

the main control board card is used for supporting the service platform layer and the upper application to carry out the operation of software programs required by task planning service, data processing service and information extraction service;

the co-processing board card is used for packaging hardware resources with different processing capacities according to standards so as to perform the data processing service;

and the storage board card is used for storing the data resources and the processing data respectively generated by the task planning service, the data processing service and the information extraction service.

8. The in-orbit distributed information resource application service system of claim 7, wherein the interface type of the master control board card can be dynamically configured according to the requirements of the in-orbit satellite; the number of the co-processing board cards can be dynamically configured according to the data processing requirements of the loads corresponding to the orbiting satellites.

9. The on-orbit distributed information resource application service system of claim 1, wherein the application plug-in layer updates plug-in resources with an incremental update policy.

10. The on-orbit distributed information resource application service system of claim 2, wherein the service platform layer performs task scheduling according to the priority of tasks and the currently allocable computing resources.