A terminal cooperation-oriented platform processing information quality evaluation system and method

Abstract

The application discloses a terminal cooperation-oriented platform processing information quality evaluation system and method, and belongs to the technical field of earth observation application. The system comprises an application center module, an observation platform and a plurality of application terminals. The application center module plans a task based on a user request sent by the application terminal, generates a task instruction based on the generated task plan, sends the task instruction to the observation platform, and performs quality evaluation by parameters in an updated second subset. The observation platform is used for acquiring earth observation data, processing the earth observation data to generate processed observation platform data, and performing quality evaluation by parameters in an updated third subset. The application terminal receives a user request, sends the user request to the application center module, and performs quality evaluation by parameters in an updated first subset. The system significantly improves the quality, accuracy and timeliness of platform processing information products.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of earth observation application, and particularly relates to a platform processing information quality evaluation system and method for terminal cooperation. BACKGROUND

[0002] With the wide application of observation information, ground system processing, platform processing and application end processing of observation information have become the key to platform observation information application.

[0003] Current observation information processing is mainly ground system processing, and some observation platforms have certain platform processing capabilities and are developing application units for different users. In order to improve the application level of observation information, especially for terminal cooperation application, the quality of platform processing information needs to be evaluated.

[0004] Traditional platform processing information quality is mainly trained by ground system before platform processing algorithm, and algorithm parameters are uploaded to observation platform. There are problems such as long platform processing information quality evaluation period, lack of quality self-checking of platform processing data product application, and repeated processing of platform processing information by user application end, which restricts the terminal cooperation application for large-scale users. Therefore, it is urgent to develop a platform processing information quality evaluation method and system for terminal cooperation to improve the timeliness, accuracy and comprehensiveness of platform processing information quality evaluation. SUMMARY

[0005] The application provides a platform processing information quality evaluation system and method for terminal cooperation, which is used to solve the above problems or at least partially solve the above problems.

[0006] In a first aspect, a platform processing information quality evaluation system for terminal cooperation is disclosed, and the system comprises:

[0007] an application center module, an observation platform and a plurality of application ends;

[0008] The application center module plans tasks based on user requests sent by the application ends, generates task instructions based on the generated task plan, and sends the task instructions to the observation platform;

[0009] A dynamic observation platform data information quality parameter set is generated based on the processed observation platform data of the observation platform, a terminal cooperation quality evaluation parameter set is generated based on the observation platform data information quality parameter set, the terminal cooperation quality evaluation parameter set is divided into three subsets, namely a first subset, a second subset and a third subset, the parameters in the first subset are application end data quality detection parameters, the parameters in the second subset are application center module information processing parameters, and the parameters in the third subset are observation platform information quality detection parameters; and the terminal cooperation quality evaluation parameter set is periodically updated.

[0010] determining parameter values of each parameter in a latest second quality evaluation parameter set based on the processed observation platform data of the observation platform, thereby performing application center module information processing quality analysis; the parameters in the second quality evaluation parameter set are updated when the terminal collaborative quality evaluation parameter set changes, and the parameters in the second quality evaluation parameter set are the same as the parameters in the updated second subset;

[0011] The observation platform is used to obtain earth observation data, and process the earth observation data to generate processed observation platform data. Parameter values of each parameter in a latest third quality evaluation parameter set are determined based on the processed observation platform data of the observation platform, thereby performing observation platform information quality analysis. When the terminal collaborative quality evaluation parameter set changes, the application center module obtains parameters in an updated third subset, and updates the parameters in the third quality evaluation parameter set to the parameters in the updated third subset. In response to a task instruction of the application center module, the observation platform provides observation platform data required by the application end to the application end.

[0012] The application end receives a user request and sends the user request to the application center module. The application end receives observation platform data required by the application end sent by the observation platform, and performs quality detection on the observation platform data required by the application end sent by the observation platform according to each parameter in a latest first quality evaluation parameter set. When the terminal collaborative quality evaluation parameter set changes, the application center module obtains parameters in an updated first subset, and updates the parameters in the first quality evaluation parameter set to the parameters in the updated first subset.

[0013] Preferably, the application center module comprises an information service sub-module, a task planning sub-module, and a second quality evaluation sub-module.

[0014] The information service sub-module is used to receive a user request sent by the application end, and send the user request to the task planning sub-module. The information service sub-module receives parameters in an updated first subset sent by the second quality evaluation sub-module, and sends the parameters in the updated first subset to the application end.

[0015] The task planning sub-module performs task planning based on the user request, generates a task instruction based on the generated task plan, and sends the task instruction to the observation platform. The task planning sub-module receives an updated third subset sent by the second quality evaluation sub-module, generates a quality parameter update instruction, and sends the quality parameter update instruction to the observation platform.

[0016] The second quality evaluation sub-module determines parameter values of each parameter in the latest second quality evaluation parameter set based on the processed observation platform data of the observation platform, thereby performing application center module information processing quality analysis; the terminal collaborative quality evaluation parameter set is updated regularly, and when the terminal collaborative quality evaluation parameter set changes, each parameter in the second quality evaluation parameter set is updated based on the updated second subset, the updated first subset is sent to the information service sub-module, and the updated third subset is sent to the task planning sub-module.

[0017] Preferably, the observation platform comprises a platform task control sub-module, a platform earth observation sub-module, a platform data processing sub-module, a third quality evaluation sub-module, and a platform data distribution sub-module.

[0018] The platform task control sub-module receives the task instruction and the quality parameter update instruction sent by the application center module, sends the task instruction to the platform earth observation sub-module, and updates each parameter in the third quality evaluation parameter set based on the updated third subset.

[0019] The platform earth observation sub-module acquires the task instruction sent by the platform task control sub-module, performs earth observation based on the task instruction, acquires earth observation data, and sends the earth observation data to the platform data processing sub-module.

[0020] The platform data processing sub-module receives the earth observation data acquired by the platform earth observation sub-module, performs data radiation correction and geometric correction, generates processed observation platform data, and sends the processed observation platform data to the third quality evaluation sub-module.

[0021] The third quality evaluation sub-module determines parameter values of each parameter in the latest third quality evaluation parameter set based on the processed observation platform data of the observation platform, thereby performing observation platform information quality analysis; when the terminal collaborative quality evaluation parameter set changes, each parameter in the third quality evaluation parameter set is updated based on the updated third subset; observation platform data corresponding to the user request is selected from the processed observation platform data that is qualified according to the analysis result, a data quality auxiliary parameter is added to the selected observation platform data, and the observation platform data is used as observation platform data required by the application end; and the observation platform data required by the application end is sent to the platform data distribution sub-module.

[0022] The platform data distribution sub-module sends the observation platform data required by the application end to the application end.

[0023] Preferably, the application end comprises an application management submodule, a data receiving submodule, a first quality assessment submodule and a comprehensive information processing submodule.

[0024] The application management submodule is configured to receive the user request, receive the updated first subset sent by the application center module, and send the updated first subset to the first quality assessment submodule.

[0025] The data receiving submodule is configured to receive the observation platform data required by the application end sent by the observation platform, decode the observation platform data required by the application end, and send the decoded observation platform data required by the application end to the first quality assessment submodule.

[0026] The first quality assessment submodule is configured to perform quality analysis on the decoded observation platform data required by the application end according to each parameter in the latest first quality assessment parameter set, update each parameter in the first quality assessment parameter set based on the updated first subset when the terminal collaborative quality assessment parameter set changes, and send the decoded observation platform data required by the application end with a qualified quality analysis result to the comprehensive information processing submodule.

[0027] The comprehensive information processing submodule is configured to obtain the decoded observation platform data required by the application end with a qualified quality analysis result, perform data analysis, and display the data analysis result to the user.

[0028] In a second aspect, a terminal collaborative platform processing information quality assessment method is disclosed, which is based on the terminal collaborative platform processing information quality assessment system as described above. The method comprises the following steps:

[0029] Step S1: obtaining the quality parameter set P determined by the terminal collaborative platform processing information quality assessment system in the test phase o ; assigning the observation platform data information quality parameter set P to P o , and recording the initial value of the parameter difference judgment coefficient of the observation platform data information quality parameter set P as

[0030] Step S2: periodically monitoring the processed observation platform data of the observation platform. If the monitoring stops, the method ends. Otherwise, obtaining the processed observation platform data of the observation platform, determining the observation platform data information quality parameter set P t at time t according to the obtained processed observation platform data of the observation platform, and t is the time when the processed observation platform data of the observation platform is obtained.

[0031] Step S3: determining the observation platform data information quality parameter set Pt The difference d between the quality parameters of the data information quality parameter set P of the observation platform and the quality parameter d ij And the parameter difference judgment coefficient α, where:

[0032]

[0033] p ij ∈P t p ij For P t The parameters in For the data information quality parameter set P of the observation platform and p ij The corresponding parameter; P t The parameters include two types: Type 1 parameters and Type 2 parameters. Type 1 parameters are those where larger values ​​are better, while Type 2 parameters are those where smaller values ​​are better. The difference in the values ​​of Type 1 parameters is d. mn ≥1; Parametric difference d of type II parameters kl ≤1;

[0034]

[0035] M and N represent the total number of rows and columns of the first type of parameters in the information quality parameter matrix, respectively; K and L represent the total number of rows and columns of the second type of parameters in the information quality parameter matrix, respectively; k, l, m, and n are variables.

[0036] Step S4: If Proceed to step S5; otherwise, proceed to step S2.

[0037] Step S5: Assign the value P to the data information quality parameter set P of the observation platform. t The parameter difference judgment coefficient of the observation platform data information quality parameter set P is assigned the value α; based on the observation platform data information quality parameter set P, the application-side data quality detection parameter set U is generated. App Application Center Module Information Processing Parameter Set U Sat Application-side data quality detection parameter set U Cen This forms a set of terminal collaboration quality assessment parameters U, where U = (U Cen U Sat U App ), where U App For the first subset after the update, U Cen For the updated second subset, U Sat For the updated third subset, the platform processing information quality assessment system for terminal collaboration updates the first quality assessment parameter set, the second quality assessment parameter set, and the third quality assessment parameter set based on the updated first subset, the updated second subset, and the updated third subset, respectively; proceed to step S2.

[0038] In a third aspect, an electronic device is disclosed, the electronic device comprising:

[0039] at least one processor; and

[0040] a memory communicatively connected to the at least one processor; wherein

[0041] the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the method as previously described.

[0042] In a fourth aspect, a non-transitory computer-readable storage medium storing computer instructions is disclosed, the computer instructions being used to cause the computer to perform the method as previously described.

[0043] The present application has the following technical effects:

[0044] The platform processing information quality evaluation system and method for terminal collaboration provided by the present application realize terminal collaborative platform processing information quality evaluation. Compared with the current platform processing information quality evaluation method in which platform processing algorithm training and processing quality evaluation are performed by the ground system in advance, the present application adds quality evaluation links such as application center processing parameter optimization, platform information quality inspection, and application end data quality detection, realizes ground system, observation platform, and application end whole-process information product quality evaluation, has the characteristics of fast evaluation response, complete quality inspection, wide service range, and the like, and is a new direction and development focus of current and future platform processing information quality evaluation. Using the system, the observation platform using unit can monitor platform processing information quality in real time, synchronously update application center processing parameters, platform information quality inspection parameters, and application end data quality detection parameters, reduce application end information processing difficulty, improve platform processing information application capability, lay a foundation for providing high-quality platform processing information services for large-scale ordinary users, and significantly improve platform processing information product quality, accuracy, and timeliness. BRIEF DESCRIPTION OF DRAWINGS

[0045] Figure 1 FIG. 1 is a schematic diagram of the architecture of the platform processing information quality evaluation system for terminal collaboration;

[0046] Figure 2 FIG. 2 is a schematic diagram of the method flow of the platform processing information quality evaluation method for terminal collaboration. DETAILED DESCRIPTION

[0047] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0048] As Figure 1As shown, the application provides a terminal collaboration-oriented platform processing information quality evaluation system, which comprises:

[0049] an application center module, an observation platform and a plurality of application terminals;

[0050] The application center module plans tasks based on user requests sent by the application terminals, generates task instructions based on the generated task plan, and sends the task instructions to the observation platform;

[0051] Based on the processed observation platform data of the observation platform, a dynamic observation platform data information quality parameter set is generated, and a terminal collaboration quality evaluation parameter set is generated based on the observation platform data information quality parameter set. The terminal collaboration quality evaluation parameter set is divided into three subsets, namely a first subset, a second subset and a third subset. The parameters in the first subset are application terminal data quality detection parameters, the parameters in the second subset are application center module information processing parameters, and the parameters in the third subset are observation platform information quality detection parameters. The terminal collaboration quality evaluation parameter set is updated periodically.

[0052] Based on the processed observation platform data of the observation platform, the parameter values of each parameter in the latest second quality evaluation parameter set are determined, so as to perform application center module information processing quality analysis. The parameters in the second quality evaluation parameter set are updated when the terminal collaboration quality evaluation parameter set changes. The parameters in the second quality evaluation parameter set are the same as the updated parameters in the second subset.

[0053] The observation platform is used to obtain earth observation data, process the earth observation data to generate processed observation platform data, determine the parameter values of each parameter in the latest third quality evaluation parameter set based on the processed observation platform data of the observation platform, and perform observation platform information quality analysis. When the terminal collaboration quality evaluation parameter set changes, the application center module obtains the parameters in the updated third subset, updates the parameters in the third quality evaluation parameter set to the parameters in the updated third subset, and provides the observation platform data required by the application terminal to the application terminal in response to the task instructions of the application center module.

[0054] The application end receives a user request, sends the user request to the application center module, receives observation platform data required by the application end sent by the observation platform, performs quality detection on the observation platform data required by the application end sent by the observation platform according to each parameter in the latest first quality evaluation parameter set, and updates the parameters in the first quality evaluation parameter set to the parameters in the updated first subset when the terminal cooperative quality evaluation parameter set changes.

[0055] The application discloses a platform processing information quality evaluation method and system.

[0056] Further, the application center module comprises an information service submodule, a task planning submodule, and a second quality evaluation submodule.

[0057] The information service submodule is configured to receive a user request sent by the application end, send the user request to the task planning submodule, receive parameters in an updated first subset sent by the second quality evaluation submodule, and send the parameters in the updated first subset to the application end.

[0058] The task planning submodule is configured to perform task planning based on the user request, generate a task instruction based on the generated task plan, send the task instruction to the observation platform, receive an updated third subset sent by the second quality evaluation submodule, generate a quality parameter update instruction, and send the quality parameter update instruction to the observation platform.

[0059] The second quality evaluation submodule is configured to determine parameter values of each parameter in a latest second quality evaluation parameter set based on the processed observation platform data of the observation platform, thereby performing application center module information processing quality analysis, periodically update the terminal cooperative quality evaluation parameter set, update each parameter in the second quality evaluation parameter set based on an updated second subset when the terminal cooperative quality evaluation parameter set changes, send the updated first subset to the information service submodule, and send the updated third subset to the task planning submodule.

[0060] Further, the observation platform comprises a platform task control submodule, a platform earth observation submodule, a platform data processing submodule, a third quality evaluation submodule, and a platform data distribution submodule.

[0061] The platform task control submodule receives the task instruction and the quality parameter update instruction sent by the application center module, sends the task instruction to the platform earth observation submodule, and updates each parameter in the third quality evaluation parameter set based on the updated third subset;

[0062] The platform earth observation submodule obtains the task instruction sent by the platform task control submodule, performs earth observation based on the task instruction, obtains earth observation data, and sends the earth observation data to the platform data processing submodule;

[0063] The platform data processing submodule receives the earth observation data obtained by the platform earth observation submodule, performs data radiation correction and geometric correction to generate processed observation platform data, and sends the processed observation platform data to the third quality evaluation submodule;

[0064] The third quality evaluation submodule determines the parameter value of each parameter in the latest third quality evaluation parameter set based on the processed observation platform data of the observation platform, thereby performing observation platform information quality analysis; when the terminal collaborative quality evaluation parameter set changes, each parameter in the third quality evaluation parameter set is updated based on the updated third subset; the observation platform data corresponding to the user request is selected from the processed observation platform data with qualified analysis results, a data quality auxiliary parameter is added to the selected observation platform data, and the observation platform data is used as the observation platform data required by the application end; and the observation platform data required by the application end is sent to the platform data distribution submodule;

[0065] The platform data distribution submodule sends the observation platform data required by the application end to the application end.

[0066] Further, the application end includes an application management submodule, a data receiving submodule, a first quality evaluation submodule, and a comprehensive information processing submodule.

[0067] The application management submodule is configured to receive the user request, receive the updated first subset sent by the application center module, and send the updated first subset to the first quality evaluation submodule;

[0068] The data receiving submodule receives the observation platform data required by the application end sent by the observation platform, decodes and processes the observation platform data required by the application end, and sends the decoded and processed observation platform data required by the application end to the first quality evaluation submodule;

[0069] The first quality assessment submodule performs quality analysis on the observation platform data required by the application terminal after decoding based on each parameter in the latest first quality assessment parameter set; when the terminal collaboration quality assessment parameter set changes, it updates each parameter in the first quality assessment parameter set based on the updated first subset; and sends the observation platform data required by the application terminal after decoding with qualified quality analysis results to the integrated information processing submodule.

[0070] The integrated information processing submodule acquires the observation platform data required by the application after decoding and processing, which has a qualified quality analysis result, performs data analysis, and displays the data analysis results to the user.

[0071] This invention provides a method for assessing the quality of platform-processed information in a terminal-collaborative manner, based on the aforementioned platform-processed information quality assessment system for terminal collaboration. The method includes:

[0072] Step S1: Obtain the quality parameter set P determined by the terminal-oriented collaborative platform processing information quality assessment system during the testing phase. o The data quality parameter set P of the observation platform is assigned the value P. o Let the initial value of the parameter difference judgment coefficient of the data information quality parameter set P of the observation platform be denoted as .

[0073] Step S2: Periodically monitor and acquire the processed observation platform data. If monitoring stops, the method ends; otherwise, acquire the processed observation platform data and determine the observation platform data information quality parameter set P at time t based on the acquired processed observation platform data. t t is the time when the processed observation platform data is acquired;

[0074] Step S3: Determine the set of observation platform data quality parameters P at time t. t The difference d between the quality parameters of the data information quality parameter set P of the observation platform and the quality parameter d ij And the parameter difference judgment coefficient α, where:

[0075]

[0076] p ij ∈P t p ij For P t The parameters in For the data information quality parameter set P of the observation platform and p ij The corresponding parameter; P tThe parameters in the parameter set P include a first type parameter and a second type parameter, wherein the first type parameter is a parameter value the larger the better type parameter, the second type parameter is a the smaller the better type parameter, the parameter difference d mn ≥1; the parameter difference d kl ≤1 of the second type parameter;

[0077]

[0078] M and N are respectively the total number of rows and the total number of columns of the first type parameter in the information quality parameter matrix; K and L are respectively the total number of rows and the total number of columns of the second type parameter in the information quality parameter matrix; k, l, m and n are variables;

[0079] Step S4: if Step S5 is entered; otherwise, Step S2 is entered;

[0080] Step S5: the observation platform data information quality parameter set P is assigned as P t The parameter difference judgment coefficient of the observation platform data information quality parameter set P is assigned as α; the application end data quality detection parameter set U is generated based on the observation platform data information quality parameter set P App , the application center module information processing parameter set U Sat and the application end data quality detection parameter set U Cen , to form the terminal collaborative quality evaluation parameter set U, U=(U Cen , U Sat , U App ), wherein U App is the updated first subset, U Cen is the updated second subset, and U Sat is the updated third subset; the terminal collaborative platform processing information quality evaluation system updates the first quality evaluation parameter set, the second quality evaluation parameter set and the third quality evaluation parameter set based on the updated first subset, the updated second subset and the updated third subset respectively; Step S2 is entered.

[0081] The present application provides a specific embodiment of a terminal collaborative platform processing information quality evaluation system. The terminal collaborative platform processing information quality evaluation system comprises an observation platform (S), an application center (C) and an application end (A).

[0082] The observation platform S data quality checking unit S4 mainly receives the processing products sent by the platform data processing unit S3, performs data quality checking according to the quality evaluation rules, and sends the qualified data products to the platform data distribution unit S5 after adding data quality auxiliary parameters. The data quality checking unit S4 mainly comprises a quality parameter extraction module, a data feature matching module and a data quality detection module.

[0083] The application center C quality evaluation system C2 mainly analyzes the quality of the platform earth observation data, generates quality evaluation parameters and sends them to the mission planning system C1 and the information service system C3, and sends the quality evaluation parameters to the information service system C3 as needed for updating the application end A. The quality evaluation system C2 mainly consists of evaluation task management, quality data processing, information quality analysis, quality parameter generation and other subsystems.

[0084] The application end A data quality detection module A3 mainly receives observation data sent by the data receiving module A2, performs data quality detection according to the quality evaluation rules, receives quality evaluation parameters sent by the application management module A1 and completes updating. The data quality detection module A3 mainly consists of quality data extraction, information feature association, data qualification check and other plug-ins.

[0085] Specifically:

[0086] The application center C mainly completes platform mission planning, observation data quality evaluation, user information service and other tasks, accepts application end A requirements, sends instructions to the observation platform S, and sends quality evaluation parameters to the application end A. The application center C mainly consists of a mission planning system (C1), a quality evaluation system (C2) and an information service system (C3).

[0087] The mission planning system C1 mainly accepts user requirements, receives demand applications from the information service system C3, receives quality evaluation update applications sent by the quality evaluation system C2, plans the tasks, completes the plan, and sends the instruction to the observation platform S. The mission planning system C1 mainly includes demand planning, task scheduling, plan generation, instruction preparation and other subsystems.

[0088] The quality evaluation system C2 mainly analyzes the quality of the platform earth observation data, generates quality evaluation parameters and sends them to the mission planning system C1 and the information service system C3, and sends the quality evaluation parameters to the information service system C3 as needed for updating the application end A. The quality evaluation system C2 mainly consists of evaluation task management, quality data processing, information quality analysis, quality parameter generation and other subsystems.

[0089] The information service system C3 mainly provides demand acceptance, parameter updating, data sharing, information management and other services for the application end A, sends demand applications to the mission planning system C1, receives quality evaluation parameters sent by the quality evaluation system C2, and sends them to the application end A. The information service system C3 mainly consists of system management, information sharing, user service, data push and other subsystems.

[0090] The observation platform S mainly controls the start of the payload to obtain observation data according to the user demand, generates observation data after data processing, has terminal cooperative application capability, and can provide services for various users. The observation platform S usually mainly consists of a platform task control unit (S1), a platform earth observation unit (S2), a platform data processing unit (S3), a data quality inspection unit (S4), and a platform data distribution unit (S5).

[0091] The platform task control unit S1 mainly receives observation tasks and quality assessment parameters on the application center C, sends start-up instructions to the platform earth observation unit S2, and issues quality assessment parameters to the data quality inspection unit S4 and collects update status. The platform task control unit S1 mainly includes control plan management, cooperative task control, task state management, and other module components.

[0092] The platform earth observation unit S2 mainly receives start-up instructions sent by the platform task control unit S1, completes earth observation according to the plan, obtains earth observation data, and sends the earth observation data to the platform data processing unit S3. The platform earth observation unit S2 mainly includes payload control, effective observation payload, formatted data processing, data storage recording, and other module components.

[0093] The platform data processing unit S3 mainly receives earth observation data sent by the platform earth observation unit S2, performs data radiation correction and geometric correction, generates processing products after detection and identification, and sends the processing products to the data quality inspection unit S4. The platform data processing unit S3 mainly includes radiation correction processing, geometric correction processing, data change detection, feature extraction identification, and other module components.

[0094] The data quality inspection unit S4 mainly receives processing products sent by the platform data processing unit S3, performs data quality inspection according to quality assessment rules, sends qualified data products after adding data quality auxiliary parameters to the platform data distribution unit S5. The data quality inspection unit S4 mainly includes quality parameter extraction, data feature matching, data quality detection, and other module components.

[0095] The platform data distribution unit S5 mainly receives qualified data sent by the data quality inspection unit S4, performs data distribution processing, and sends the qualified data to the application end A. The platform data distribution unit S5 mainly includes data encoding, signal modulation, distribution service, and other module components.

[0096] The application end A mainly provides a one-stop information application platform for users to use observation data, receives observation data sent by the observation platform S, performs data quality detection and comprehensive information processing, and meets user use demand. The application end A mainly includes an application management module (A1), a data receiving module (A2), a data quality detection module (A3), and a comprehensive information processing module (A4).

[0097] The application management module A1 mainly receives user demand, sends demand application to the information service system C3, receives quality evaluation parameters sent by the information service system C3, and sends the quality evaluation parameters to the data quality detection module A3 for parameter updating. The application management module A1 mainly consists of user use management, collaborative demand generation, task state monitoring and other plug-ins.

[0098] The data receiving module A2 mainly receives distribution data sent by the platform data distribution unit S5, performs format conversion, and sends observation data to the data quality detection module A3. The data receiving module A2 mainly consists of signal processing, format conversion, data recording and other plug-ins.

[0099] The data quality detection module A3 mainly receives observation data sent by the data receiving module A2, performs data quality detection according to quality evaluation rules, receives quality evaluation parameters sent by the application management module A1 and completes updating. The data quality detection module A3 mainly consists of quality data extraction, information feature association, data qualification check and other plug-ins.

[0100] The comprehensive information processing module A4 mainly receives qualified product data sent by the data quality detection module A3, provides data analysis, information display and comprehensive application services for users, and feeds back state to the application management module A1. The comprehensive information processing module A4 mainly consists of data comprehensive analysis, information feature fusion, comprehensive data display and other plug-ins.

[0101] As shown in Figure 2 , the present application provides a terminal collaborative platform processing information quality evaluation method, mainly including the following steps:

[0102] S11, periodically collecting observation platform data information quality parameters p ij , forming a quality parameter set P, combining the quality parameters determined during platform testing denoted as P o , calculating the quality parameter difference d ij and the parameter difference judgment coefficient α, if the quality parameter set P is better than P0;

[0103] S12, according to the observation platform data information quality parameter set P t at time t, generating application center information processing parameters x ij , platform information quality check parameters y ij and application end data quality detection parameters z ij , forming a terminal collaborative quality evaluation parameter set U, and U=(U Cen , U Sat , U App ), and submitting a terminal collaborative quality parameter updating application r to the task planning system C1;

[0104] S13、According to the terminal cooperative quality parameter update application r, the application center processing parameter change plan f, the platform information quality inspection parameter update plan g and the application end data quality detection parameter update plan h are generated in combination with the terminal running state and the measurement and control resource condition;

[0105] S14, according to the application center processing parameter change plan f, the application center observation platform data processing parameter version identification code f run is checked, if f run <f3, the application center observation platform processing parameter set is updated to U Cen ;

[0106] S15, according to the platform information quality inspection parameter update plan g, the platform information quality inspection parameter version identification code g run is checked, if g run <g3, the platform information quality inspection parameter set of the platform is updated to U Sat ;

[0107] S16, according to the application end data quality detection parameter update plan h, the application end observation platform data quality detection parameter version identification code h run is checked, if h run <h3, the application center observation platform processing parameter set is updated to U App .

[0108] The platform processing information quality evaluation method for terminal cooperation given by the application mainly includes the following steps:

[0109] S11, periodically collect observation platform data information quality parameters p ij , form quality parameter set P, in combination with the quality parameters determined during platform test , recorded as P o , calculate the quality parameter difference d ij and the parameter difference judgment coefficient α, if , the quality parameter set P is better than P0.

[0110] Generally, when the observation platform is running, it is affected by space environment radiation, platform device attenuation, control parameter abnormality and other factors, and the observation platform data information quality will change, that is, the quality parameter p ij is different from the quality parameter determined during platform test , recorded as d ij . The quality parameter set is recorded as P, and p ij ∈P, the platform test quality parameter set is recorded as P o , and The quality parameter difference set is recorded as D, and d ij∈D. Wherein, d ij Can be defined as:

[0111]

[0112] The parameter p of evaluating the data information quality of observation platform ij Is divided into two categories, one kind of parameter is the larger the better type, such as signal to noise ratio, detection rate and other parameters, at this time, it is recorded as d mn , and d mn ≥1; the other kind of parameter is the smaller the better type, at this time, it is recorded as d kl , and d kl ≤1, such as resolution, positioning accuracy and other parameters.

[0113] For quantitative analysis of the degree of quality improvement, the parameter difference judgment coefficient α can be defined, and the calculation formula is as follows:

[0114]

[0115] Wherein, M, N, K, L are the total number of rows and columns of the corresponding information quality parameter matrix, k, l, m, n are variables, d kl is the smaller the better type parameter difference, d mn is the larger the better type parameter difference.

[0116] Usually, the set of observation platform data information quality parameters collected when the platform is delivered for use is defined as At this time, the set of quality parameter differences can be calculated according to the definition as The parameter difference judgment coefficient is recorded as

[0117] When the observation platform faces the terminal collaborative application, the quality evaluation system C2 collects the observation platform data information quality parameters regularly, calculates the parameter difference judgment coefficient α, and if The quality parameter set P is better than P0, at this time, the related quality parameters of application center, platform processing and application end processing need to be updated.

[0118] S12, according to the observation platform data information quality parameter set P t At time t, the application center information processing parameter x ij , the platform information quality inspection parameter y ij And the application end data quality detection parameter z ij , form the terminal collaborative quality evaluation parameter set U, and U=(U Cen , U Sat , U App ), and submit the terminal collaborative quality parameter update application r to the task planning system C1.

[0119] In the cooperative application of observation information terminal, to reduce the processing difficulty of application end, the system design of application center information processing, platform information quality inspection processing and application end data quality detection processing algorithm is carried out, the basic processing of radiation, geometry and other data is completed in the application center, and the data information quality of observation platform is monitored, the information processing of radiation, geometry, data detection and quality inspection is completed in the platform, and the quality detection, information association and application processing are completed in the application end.

[0120] Generally, the application center information processing parameter is x ij , the parameter set U Cen is formed, and x ij ∈U Cen ; the platform information quality inspection parameter is y ij , the parameter set U Sat is formed, and y ij ∈U Sat ; the application end data quality detection parameter is z ij , the parameter set U App is formed, and z ij ∈U App . At this time, the terminal cooperative quality evaluation parameter set U is formed, which is recorded as U=(U Cen ,U Sat ,U App ).

[0121] At the same time, the quality evaluation system C2 submits a terminal quality parameter update application r to the task planning system C1, which can be recorded as:

[0122] r=(r1,r2,r3,r4,r5,r6,r7)

[0123] Wherein: r1 is the terminal cooperative quality parameter update application code, which has uniqueness;

[0124] r2 is the observation platform identification code, which has uniqueness;

[0125] r3 is the application center processing parameter version identification code, which is used to identify the parameter version and has uniqueness;

[0126] r4 is the platform information quality inspection parameter version identification code, which is used to identify the parameter version and has uniqueness;

[0127] r5 is the application end data quality detection parameter version identification code, which is used to identify the parameter version and has uniqueness;

[0128] r6 is the terminal cooperative quality evaluation parameter set U;

[0129] r7 is the terminal cooperative quality evaluation parameter update time requirement.

[0130] S13, according to the terminal cooperative quality parameter update application r, combined with the terminal running state and the measurement and control resource situation, application center processing parameter change plan f, platform information quality inspection parameter update plan g and application end data quality detection parameter update plan h are generated.

[0131] The task planning system C1 generates the application center processing parameter change plan f according to the terminal quality parameter update application r proposed by the quality evaluation system C2, combined with the application system running state, which can be recorded as:

[0132] f = (f1, f2, f3, f4, f5)

[0133] Among them: f1 is the application center processing parameter change plan code, which has uniqueness;

[0134] f2 is the observation platform identification code, and f2 = r2;

[0135] f3 is the application center processing parameter version identification code, and f3 = r3;

[0136] f4 is the application center processing parameter set U Cen ;

[0137] f5 is the application center processing parameter update time requirement.

[0138] Similarly, combined with the platform running state, the task planning system C1 generates the platform information quality inspection parameter update plan g, which can be recorded as:

[0139] g = (g1, g2, g3, g4, g5)

[0140] Among them: g1 is the platform information quality inspection parameter update plan code, which has uniqueness;

[0141] g2 is the observation platform identification code, and g2 = r2;

[0142] g3 is the platform information quality inspection parameter version identification code, and g3 = r4;

[0143] g4 is the platform information quality inspection parameter set U Sat ;

[0144] g5 is the platform information quality inspection parameter update time requirement.

[0145] According to the application end running state and use, the task planning system C1 generates the application end data quality detection parameter update plan h, which can be recorded as:

[0146] h = (h1, h2, h3, h4, h5)

[0147] Wherein: h1 is the application end data quality detection parameter update plan code, with uniqueness;

[0148] h2 is the observation platform identification code, and h2=r2;

[0149] h3 is the application end data quality detection parameter version identification code, and h3=r5;

[0150] h4 is the application end data quality detection parameter set U App ;

[0151] h5 is the application end data quality detection parameter update time requirement.

[0152] S14, according to the application center processing parameter change plan f, the application center observation platform data processing parameter version identification code f run is checked, if f run <f3, the application center observation platform processing parameter set is updated to U Cen .

[0153] The application center has the observation platform data processing function, and the parameter f run is usually online as the input of the data processing plug-in in the test stage. When the application center processing parameter change plan f is received, the application center observation platform data processing parameter version identification code f run is checked, if f run <f3, the application center observation platform processing parameter set is updated to U Cen , and the update state is fed back to the task planning system C1.

[0154] S15, according to the platform information quality inspection parameter update plan g, the platform information quality inspection parameter version identification code g run is checked, if g run <g3, the platform information quality inspection parameter set of the platform is updated to U Sat .

[0155] The observation platform has the platform data processing function, and the data processing running parameter g run is usually updated as the input of the data processing module in the test stage. When the platform receives the platform information quality inspection parameter update plan g, the platform information quality inspection parameter version identification code g run is checked, if g run <g3, the platform information quality inspection parameter set is updated to U Sat , and the update state is fed back to the task planning system C1 through observation.

[0156] S16, according to the application end data quality detection parameter update plan h, the application end observation platform data quality detection parameter version identification code hrun The check is performed, and if h run <h3, the application center updates the observation platform processing parameter set to U App .

[0157] The application end has an observation platform data distribution processing function, and generally needs to configure data quality detection operation parameters h run as the input of the data processing plug-in. When the application end receives a data quality detection parameter update plan h run , the application end performs a check, and if h run <h3, the application center updates the observation platform processing parameter set to U App , and feeds back the update state to the information service system C3.

[0158] The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced by equivalents, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A terminal cooperative-oriented platform processing information quality evaluation system, characterized in that, The system comprises: an application center module, an observation platform and a plurality of application terminals; the application center module plans tasks based on user requests sent by the application terminals, generates task instructions based on the generated task plan, and sends the task instructions to the observation platform; a dynamic observation platform data information quality parameter set is generated based on the processed observation platform data of the observation platform, a terminal collaborative quality evaluation parameter set is generated based on the observation platform data information quality parameter set, the terminal collaborative quality evaluation parameter set is divided into three subsets, namely a first subset, a second subset and a third subset, the parameters in the first subset are application terminal data quality detection parameters, the parameters in the second subset are application center module information processing parameters, and the parameters in the third subset are observation platform information quality detection parameters; and the terminal collaborative quality evaluation parameter set is updated periodically; the parameter values of the parameters in the latest second quality evaluation parameter set are determined based on the processed observation platform data of the observation platform, so as to analyze the application center module information processing quality; the parameters in the second quality evaluation parameter set are updated when the terminal collaborative quality evaluation parameter set changes, and the parameters in the second quality evaluation parameter set are the same as the updated parameters in the second subset; the observation platform is used to acquire earth observation data, process the earth observation data to generate processed observation platform data, determine the parameter values of the parameters in the latest third quality evaluation parameter set based on the processed observation platform data of the observation platform, so as to analyze the observation platform information quality; when the terminal collaborative quality evaluation parameter set changes, the updated parameters in the third subset are acquired by the application center module, the parameters in the third quality evaluation parameter set are updated to the updated parameters in the third subset; and the observation platform provides the observation platform data required by the application terminal to the application terminal in response to the task instructions of the application center module; the application terminal receives user requests, sends the user requests to the application center module, receives the observation platform data required by the application terminal sent by the observation platform, and detects the quality of the observation platform data required by the application terminal sent by the observation platform according to the parameters in the latest first quality evaluation parameter set; when the terminal collaborative quality evaluation parameter set changes, the updated parameters in the first subset are acquired by the application center module, and the parameters in the first quality evaluation parameter set are updated to the updated parameters in the first subset.

2. The system of claim 1, wherein, The application center module comprises an information service submodule, a task planning submodule and a second quality evaluation submodule; the information service submodule is used to receive user requests sent by the application terminal, and send the user requests to the task planning submodule; the updated parameters in the first subset sent by the second quality evaluation submodule are received, and the updated parameters in the first subset are sent to the application terminal; and the application terminal receives user requests, sends the user requests to the application center module, receives the observation platform data required by the application terminal sent by the observation platform, and detects the quality of the observation platform data required by the application terminal sent by the observation platform according to the parameters in the latest first quality evaluation parameter set; when the terminal collaborative quality evaluation parameter set changes, the updated parameters in the first subset are acquired by the application center module, and the parameters in the first quality evaluation parameter set are updated to the updated parameters in the first subset. The task planning submodule plans a task based on the user request, generates a task instruction based on the generated task plan, and sends the task instruction to the observation platform; The application center module receives the updated first subset sent by the first quality assessment submodule, generates a quality parameter update instruction based on the updated first subset, and sends the quality parameter update instruction to the observation platform; The second quality assessment submodule determines parameter values of each parameter in the latest second quality assessment parameter set based on the processed observation platform data of the observation platform, thereby performing application center module information processing quality analysis; the terminal collaborative quality assessment parameter set is updated periodically, and when the terminal collaborative quality assessment parameter set changes, each parameter in the second quality assessment parameter set is updated based on the updated second subset, the updated first subset is sent to the information service submodule, and the updated third subset is sent to the task planning submodule.

3. The system of claim 2, wherein, The observation platform comprises a platform task control submodule, a platform earth observation submodule, a platform data processing submodule, a third quality assessment submodule, and a platform data distribution submodule; The platform task control submodule receives the task instruction and the quality parameter update instruction sent by the application center module, sends the task instruction to the platform earth observation submodule, and updates each parameter in the third quality assessment parameter set based on the updated third subset; The platform earth observation submodule acquires the task instruction sent by the platform task control submodule, performs earth observation based on the task instruction, acquires earth observation data, and sends the earth observation data to the platform data processing submodule; The platform data processing submodule receives the earth observation data acquired by the platform earth observation submodule, performs data radiation correction and geometric correction, and generates processed observation platform data; and sends the processed observation platform data to the third quality assessment submodule; The third quality assessment submodule determines parameter values of each parameter in the latest third quality assessment parameter set based on the processed observation platform data of the observation platform, thereby performing observation platform information quality analysis; and when the terminal collaborative quality assessment parameter set changes, each parameter in the third quality assessment parameter set is updated based on the updated third subset; The observation platform data corresponding to the user request is selected from the processed observation platform data that is qualified according to the analysis result, a data quality auxiliary parameter is added to the selected observation platform data, and the observation platform data is used as the observation platform data required by the application end; and the observation platform data required by the application end is sent to the platform data distribution submodule; The platform data distribution submodule sends the observation platform data required by the application end to the application end.

4. The system of claim 3, wherein, The application end comprises an application management submodule, a data receiving submodule, a first quality assessment submodule, and a comprehensive information processing submodule; The application management submodule is configured to receive the user request, receive the updated first subset sent by the application center module, and send the updated first subset to the first quality assessment submodule; The data receiving submodule receives the observation platform data required by the application end sent by the observation platform, decodes the observation platform data required by the application end, and sends the decoded observation platform data required by the application end to the first quality assessment submodule; The first quality assessment submodule performs quality analysis on the decoded observation platform data required by the application end according to each parameter in the latest first quality assessment parameter set; When the terminal cooperative quality assessment parameter set changes, each parameter in the first quality assessment parameter set is updated based on the updated first subset; the decoded observation platform data required by the application end with a qualified quality analysis result is sent to the comprehensive information processing submodule; The comprehensive information processing submodule obtains the decoded observation platform data required by the application end with a qualified quality analysis result, performs data analysis, and displays the data analysis result to the user.

5. A method for processing information quality assessment based on terminal collaboration-oriented platform, based on the terminal collaboration-oriented platform processing information quality assessment system in any one of claims 1-4, characterized in that, The method comprises: Step S1: obtaining the quality parameter set P determined by the terminal-oriented cooperative platform processing information quality evaluation system in the test phase o ; assigning the observation platform data information quality parameter set P as P o , and recording the initial value of the parameter difference judgment coefficient of the observation platform data information quality parameter set P as Step S2: periodically monitoring the processed observation platform data of the observation platform, if the monitoring stops, the method ends; otherwise, obtaining the processed observation platform data of the observation platform, determining the observation platform data information quality parameter set P at time t according to the obtained processed observation platform data of the observation platform t , t is the time when the processed observation platform data of the observation platform is obtained; Step S3: determining the observation platform data information quality parameter set P at time t t the quality parameter difference d of the observation platform data information quality parameter set P ij and the parameter difference judgment coefficient α, wherein: p ij ∈P t p ij For P t The parameters in For the data information quality parameter set P of the observation platform and p ij The corresponding parameter; P t The parameters include first-type parameters and second-type parameters, where the parameter difference of the first-type parameters is d. mn ≥1, the parameter difference d of the second type of parameter kl ≤1; M and N are respectively the total number of rows and the total number of columns of the first type parameter in the information quality parameter matrix; K and L are respectively the total number of rows and the total number of columns of the second type parameter in the information quality parameter matrix; k, l, m, and n are variables; Step S4: If Go to step S5; otherwise, go to step S2. Step S5: Assign the value P to the data information quality parameter set P of the observation platform. t The parameter difference judgment coefficient of the observation platform data information quality parameter set P is assigned the value α; based on the observation platform data information quality parameter set P, the application-side data quality detection parameter set U is generated. App Application Center Module Information Processing Parameter Set U Sat Application-side data quality detection parameter set U Cen This forms a set of terminal collaboration quality assessment parameters U, where U = (U Cen U Sat U App ), where U App For the first subset after the update, U Cen For the updated second subset, U Sat For the updated third subset, the platform processing information quality assessment system for terminal collaboration updates the first quality assessment parameter set, the second quality assessment parameter set, and the third quality assessment parameter set based on the updated first subset, the updated second subset, and the updated third subset, respectively; proceed to step S2.

6. An electronic device, the device comprising: at least one processor; and a memory communicatively connected with the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method of claim 5.

7. A non-transitory computer-readable storage medium storing computer instructions for causing a computer to perform the method of claim 5.

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