CN115766483A - Method for evaluating service efficiency of measurement and control data transmission resource of space measurement and control network - Google Patents
Method for evaluating service efficiency of measurement and control data transmission resource of space measurement and control network Download PDFInfo
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Abstract
The invention discloses a method for evaluating the efficiency of a measurement and control data transmission resource service of a space measurement and control network, which takes the resource service of the space measurement and control network as an evaluation object, fully utilizes the mutual information of the resource service used by a user to construct a measurement and control data transmission resource service efficiency evaluation index system of the space measurement and control network, provides an index calculation method and a normalization method, determines the index weight of each level of the index system by adopting an analytic hierarchy process, and obtains the comprehensive evaluation result of the measurement and control data transmission resource service efficiency of the space measurement and control network by linear weighted summation on the basis. The invention scientifically and comprehensively evaluates the service efficiency of the measurement and control data transmission resource of the space measurement and control network from the perspective of users, and is a fine, objective and comprehensive-coverage efficiency evaluation method.
Description
Technical Field
The invention relates to the technical field of aerospace measurement and control network scheduling, in particular to a method for evaluating service efficiency of measurement and control data transmission resources of an aerospace measurement and control network.
Background
The space measurement and control network users refer to task centers which acquire spacecraft telemetering measured data and send remote control uplink data by using measurement and control network resources, and task centers or application centers which acquire high-speed load data, namely, the users which acquire space measurement and control network resource services. The space flight measurement and control network measurement and control data transmission resource service efficiency is a comprehensive index used for measuring the satisfaction degree of resource requirements of each user of space flight measurement and control network service and reflecting the user level of the space flight measurement and control network resource service, and has become one of the focus of space flight measurement and control network management parties. Especially with the vigorous development of commercial spaceflight, the improvement of the resource service level of the spaceflight measurement and control network is a necessary requirement for the development of commercial spaceflight measurement and control. Currently, evaluation of the measurement and control data transmission resource service efficiency of the aerospace measurement and control network still stays at an isolated index evaluation level such as a task satisfaction rate and an execution success rate, and an evaluation index system and method capable of comprehensively reflecting the measurement and control data transmission resource service efficiency of the aerospace measurement and control network are lacked, so that the evaluation result cannot accurately reflect the resource service user level of the aerospace measurement and control network.
Disclosure of Invention
The invention provides a method and a system for evaluating the measurement and control data transmission resource service efficiency of an aerospace measurement and control network, which are used for overcoming the defects that an evaluation index system and a method which can comprehensively reflect the measurement and control data transmission resource service efficiency of the aerospace measurement and control network are lacked in the prior art and the like.
In order to achieve the purpose, the invention provides a method for evaluating the service efficiency of a measurement and control data transmission resource of an aerospace measurement and control network, which comprises the following steps:
determining basic data of a user for measuring and controlling data transmission resource service by using an aerospace measurement and control network;
constructing an evaluation index system of the efficiency of the measurement and control data transmission resource service of the aerospace measurement and control network according to the basic data; the evaluation index system comprises a first layer index, a second layer index and a third layer index;
carrying out dimensionless processing on the third layer of indexes;
determining the weight of each index in the evaluation index system in a hierarchical analysis mode;
and comprehensively evaluating the measurement and control data transmission resource service efficiency of the space measurement and control network through linear weighting according to the weight of each index in the evaluation index system.
In order to achieve the above object, the present invention further provides a system for evaluating efficiency of a measurement and control data transmission resource service of an aerospace measurement and control network, comprising:
the data acquisition module is used for determining basic data of the data transmission resource service measured and controlled by the user by using the space measurement and control network;
the system construction module is used for constructing an efficiency evaluation index system of the spaceflight measurement and control network measurement and control data transmission resource service according to the basic data; the evaluation index system comprises a first layer index, a second layer index and a third layer index; carrying out dimensionless processing on the third layer of indexes;
the weight analysis module is used for determining the weight of each index in the evaluation index system in a hierarchical analysis mode;
and the efficiency evaluation module is used for comprehensively evaluating the measurement and control data transmission resource service efficiency of the space measurement and control network through linear weighting according to the weight of each index in the evaluation index system.
To achieve the above object, the present invention further provides a computer device, which includes a memory and a processor, where the memory stores a computer program, and the processor implements the steps of the method when executing the computer program.
To achieve the above object, the present invention further provides a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the steps of the method.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a method for evaluating the efficiency of a measurement and control data transmission resource service of a space measurement and control network, which takes the resource service of the space measurement and control network as an evaluation object, fully utilizes the mutual information of the resource service used by a user to construct a measurement and control network measurement and control data transmission resource service efficiency evaluation index system, provides an index calculation method and a normalization method, determines the index weights of each level of the index system by adopting an analytic hierarchy process, and obtains a comprehensive evaluation result of the measurement and control network measurement and control data transmission resource service efficiency by linear weighted summation on the basis. The invention scientifically and comprehensively evaluates the service efficiency of the measurement and control data transmission resource of the space measurement and control network from the perspective of users, and is a fine, objective and comprehensive-coverage efficiency evaluation method.
The invention constructs a comprehensive-coverage evaluation index system for the measurement and control data transmission resource service of the space measurement and control network, the system fully utilizes the interactive information of the resource service used by the user, and designs multi-dimensional indexes including network coverage, application response, scheduling satisfaction, task completion and the like, thereby realizing comprehensive, scientific and reasonable evaluation on the measurement and control data transmission resource service efficiency of the space measurement and control network.
The invention designs a set of calculation model for the service efficiency of the measurement and control data transmission resource of the aerospace measurement and control network, and the calculation and normalization processing are carried out on the bottom layer index (the third layer index), and then the indexes of different layers are calculated step by linear weighting by utilizing the weight coefficient determined by the analytic hierarchy process, so that the quantitative and objective evaluation on the service efficiency of the measurement and control data transmission resource of the aerospace measurement and control network can be realized, and the resource service level of the aerospace measurement and control network, which is more in line with the user requirement, can be screened.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a basic flow diagram of a method for evaluating the efficiency of a measurement and control data transmission resource service of an aerospace measurement and control network according to the present invention;
FIG. 2 is an evaluation index system for efficiency of measurement and control data transmission resource service of an aerospace measurement and control network provided by the invention;
FIG. 3 is a schematic diagram of a first method for normalizing bottom layer indexes in an evaluation index system for measuring and controlling data transmission resource service efficiency of an aerospace measurement and control network provided by the invention;
FIG. 4 is a schematic diagram of a second bottom layer index normalization method in the space flight measurement and control network measurement and control data transmission resource service efficiency evaluation index system provided by the invention;
fig. 5 is a third schematic diagram of a bottom layer index normalization method in the performance evaluation index system of the measurement and control data transmission resource service of the space measurement and control network provided by the invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a method for evaluating the service efficiency of a measurement and control data transmission resource of an aerospace measurement and control network, which comprises the following steps of:
101: and determining basic data of the data transmission resource service measured and controlled by the user by using the space measurement and control network.
102: constructing an evaluation index system of the measurement and control data transmission resource service efficiency of the aerospace measurement and control network according to the basic data; the evaluation index system is shown in fig. 2 and includes a first layer index, a second layer index and a third layer index.
103: and carrying out dimensionless processing on the third layer of indexes.
104: and determining the weight of each index in the evaluation index system in a hierarchical analysis mode.
105: and comprehensively evaluating the measurement and control data transmission resource service efficiency of the spaceflight measurement and control network through linear weighting according to the weight of each index in the evaluation index system.
In one embodiment, for step 101, the basic data includes forecast data of a satellite to which the user belongs, resource demand information submitted by the user, user resource demand acceptance condition information, user resource usage plan information, user emergency application response information, user plan adjustment information, and user resource usage plan completion condition information.
In another embodiment, for step 102, the first layer index is the service efficiency of the measurement and control data transmission resource of the space measurement and control network; the second layer of indexes comprise network coverage, application response, scheduling satisfaction and task completion; the third layer of indexes comprise low-orbit satellite orbit coverage rate, medium-orbit satellite orbit coverage rate and high-orbit satellite orbit coverage rate, user resource demand submission accuracy rate, user resource demand acceptance response time, daily task satisfaction rate, emergency resource application response time, task execution success rate and plan stability.
The corresponding incidence relation between the second-layer index and the third-layer index is as follows:
the second layer of index network coverage is used for measuring the coverage degree of the measurement and control network on the satellite task orbit of the user, and is represented by two third layer indexes, namely low-orbit satellite orbit coverage and medium-orbit satellite orbit coverage;
the second-layer index application response is used for measuring the acceptance and time response degree of daily demands and emergency demands submitted by users and is characterized by three third-layer indexes, namely user resource demand submission accuracy, user resource demand acceptance rate and user resource demand acceptance response time;
the second layer index scheduling satisfies the degree of satisfying the user requirements for measuring the acceptance through the space measurement and control network resource scheduling, and is represented by three third layer indexes of daily task satisfaction rate, emergency task satisfaction rate and emergency resource application response time;
the second-layer index task completion is used for measuring the execution completion degree of the user resource use plan and is represented by two third-layer indexes of task execution success rate and plan stability.
The third level of metrics is defined as follows:
1) Low earth orbit coverage
The low-orbit satellite orbit coverage rate reflects the orbit coverage capability of the aerospace measurement and control network on the low-orbit satellite tasks of the users, and is defined as the ratio of the total number of visible circles of all low-orbit satellites to the total number of orbit running circles in an evaluation period according to the visible forecast data of the satellites of the users, and the quantitative formula is as follows:
2) Medium and high orbit satellite orbit coverage rate
The orbit coverage rate of the medium and high orbit satellites reflects the orbit coverage capability of the space measurement and control network on the medium and high orbit satellite tasks belonging to the user, the ratio of the total visible time length of all the medium and high orbit satellites to the total orbit operation time length in the evaluation period is defined according to the visible forecast data of the satellites belonging to the user, and if visible time conflicts exist in different resources of the same satellite, the conflict time is only calculated once. The quantization formula is as follows:
3) User resource demand submission accuracy
The resource requirement submitting accuracy of the user reflects the normalization of the resource requirement submitted by the user of the space measurement and control network, and is defined as the ratio of the number meeting the normalization requirement in the resource requirement submitted by the user in the evaluation period to the total number of the resource requirements submitted by the user, according to the resource requirement information submitted by the user, and the quantitative formula is as follows:
4) User resource demand acceptance rate
The user resource demand acceptance rate reflects the degree of normal acceptance of the resource demands of the space measurement and control network submitted by the users, and is defined as the ratio of the number of the resources submitted by the system in the resource demands submitted by the users in the evaluation period to the total number of the resource demands submitted by the users according to the acceptance condition information of the user resource demands and the resource demand information submitted by the users, and the quantitative formula is as follows:
5) User resource demand acceptance response time
The user resource demand acceptance response time reflects the timeliness of user resource demand acceptance, and is defined as a statistical average value of the time from the submission of the user resource demand to the acceptance response in the evaluation period according to the user resource demand acceptance response time information;
6) Daily task satisfaction rate
The daily task satisfaction rate reflects the degree of the user obtaining the accepted daily resource demand to obtain resource scheduling satisfaction, and is defined as the ratio of the number of tasks met by the user daily resource demand to the total number of tasks required by the user to obtain the accepted daily resource demand in the evaluation period according to the user resource demand acceptance condition information and the user resource use plan information, and the quantitative formula is as follows:
7) Emergency mission satisfaction rate
The emergency task satisfaction rate reflects the degree of resource scheduling satisfaction obtained by the user emergency resource application, and is defined as the ratio of the number of tasks satisfied by the user emergency resource application to the total number of tasks applied by the user emergency resource in an evaluation period according to the user emergency application response information, and the quantitative formula is as follows:
8) Emergency resource application response time
The response time of the emergency resource application reflects the timeliness of the response of the user emergency resource application, and is defined as a statistical average value of the time from the user emergency resource application to the response reception in the evaluation period according to the response information of the user emergency application.
9) Success rate of task execution
The success rate of task execution reflects the successful execution degree of the user resource use plan, and is defined as the ratio of the number of tasks successfully executed in the user resource use plan in an evaluation period according to the completion condition information of the user resource use plan, and a quantitative formula is as follows:
10 Plan stability
The plan stability reflects the stability degree of the user resource using plan, and is defined as the duty ratio of the number of tasks which are not adjusted in the user resource using plan in the evaluation period according to the user resource using plan and the user plan adjusting information, and the quantitative formula is as follows:
in a further embodiment, for step 103, the dimensionless processing is performed on the third-layer metrics, including:
and converting the third-layer index into a dimensionless value between 0 and 1 in a piecewise linear normalization mode.
The low-orbit satellite orbit coverage rate and the medium-orbit satellite orbit coverage rate indexes adopt a schematic diagram of a normalization method shown in fig. 3, wherein d0 and d1 are set to take different values according to the actual conditions of different indexes, and the normalization value is 0 when the index value is smaller than d 0; when the index value is larger than d0 and smaller than d1, the normalization value is increased to 1 linearly; when larger than d1, the normalized value is 1. For example, when d0=0.4 and d1=0.8, the normalization function can be expressed as:
wherein x represents an index value and y 1 Represents a normalized value thereof;
the user resource demand submission accuracy, the user resource demand acceptance rate, the daily task satisfaction rate, the emergency task satisfaction rate, the task execution success rate and the plan stability index adopt a schematic diagram of a normalization method II shown in fig. 4, wherein d2 is set to take different values according to the actual conditions of different indexes, and the normalization value is 0 when the index value is smaller than d 2; when the index value is larger than d2, the normalized value is linearly increased from 0.1 to 1. If d2=0.5, then its normalization function can be expressed as:
wherein x represents an index value and y 2 Represents a normalized value thereof;
the index of the user resource demand acceptance response time and the emergency resource application response time adopts a third schematic diagram of a normalization method shown in fig. 5, wherein the setting of d3 and d4 can be respectively valued according to the actual situations of different indexes, and the normalization value is 1 when the index value is smaller than d 3; when between d3 and d4, the normalized value decreases linearly to 0.1; when larger than d4, the normalization is 0. For example, when d3=1 (minute), d4=5 (minute), the normalization function thereof can be expressed as:
wherein x represents an index value and y 3 Representing its normalized value.
In one embodiment, for step 104, determining the weight of each index in the evaluation index system through a hierarchical analysis manner includes:
401: and constructing a judgment matrix G on the hierarchical structure of the evaluation index system.
Starting from the third layer of the hierarchical structure, comparing the indexes of the same layer subordinate to the indexes of the second layer by using a relative comparison method and 1-9 criterion factors until reaching the first layer; finally, an interpretation matrix of three indexes of user resource demand submission accuracy, user resource demand acceptance rate and user resource demand acceptance response time, an interpretation matrix of three indexes of daily task satisfaction rate, emergency task satisfaction rate and emergency resource application response time, an interpretation matrix of two indexes of task execution success rate and plan stability, and an interpretation matrix of three second-layer indexes of application response, scheduling satisfaction and task completion are obtained.
402: and calculating a weight vector of the judgment matrix, and performing consistency check on the judgment matrix.
The consistency of the judgment matrix G is checked, and the calculation formula is
Wherein λ is max The maximum eigenvalue of the matrix G, n the dimension of the matrix G, and RI the average random consistency index. If the calculated result CR < 0.1, then the consistency level of G is acceptable, otherwise G needs to be modified to meet the consistency check.
403: and solving and determining the weight of each layer index by adopting a characteristic value method according to the weight vector.
In the next embodiment, for step 105, the measuring and controlling data transmission resource service performance of the space measurement and control network is comprehensively evaluated by linear weighting according to the weight of each index in the evaluation index system, which includes:
501: obtaining a second-layer index value by adopting an arithmetic weighted average method according to the third-layer index weight and the index value of the evaluation index system;
502: and obtaining the measurement and control data transmission resource service efficiency index of the space measurement and control network by adopting an arithmetic weighted average method according to the second-layer index weight and the index value of the evaluation index system.
The invention also provides a system for evaluating the efficiency of the measurement and control data transmission resource service of the space measurement and control network, which comprises the following components:
the data acquisition module is used for determining basic data of the data transmission resource service measured and controlled by a user by using the space measurement and control network;
the system construction module is used for constructing an evaluation index system of the measurement and control data transmission resource service efficiency of the space measurement and control network according to the basic data; the evaluation index system comprises a first layer index, a second layer index and a third layer index; carrying out dimensionless processing on the third layer of indexes;
the weight analysis module is used for determining the weight of each index in the evaluation index system in a hierarchical analysis mode;
and the efficiency evaluation module is used for comprehensively evaluating the measurement and control data transmission resource service efficiency of the space measurement and control network through linear weighting according to the weight of each index in the evaluation index system.
The invention further provides a computer device, which includes a memory and a processor, where the memory stores a computer program, and the processor implements the steps of the method when executing the computer program.
The invention also proposes a computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method described above.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A space flight measurement and control network measurement and control data transmission resource service efficiency evaluation method is characterized by comprising the following steps:
determining basic data of a user for measuring and controlling data transmission resource service by using an aerospace measurement and control network;
constructing an evaluation index system of the efficiency of the measurement and control data transmission resource service of the aerospace measurement and control network according to the basic data; the evaluation index system comprises a first layer index, a second layer index and a third layer index;
carrying out dimensionless processing on the third layer of indexes;
determining the weight of each index in the evaluation index system in a hierarchical analysis mode;
and comprehensively evaluating the measurement and control data transmission resource service efficiency of the space measurement and control network through linear weighting according to the weight of each index in the evaluation index system.
2. The performance evaluation method of claim 1, wherein the basic data comprises forecast data of a satellite to which the user belongs, resource requirement information submitted by the user, user resource requirement acceptance condition information, user resource usage plan information, user emergency application response information, user plan adjustment information, and user resource usage plan completion information.
3. The performance evaluation method according to claim 1, wherein the first layer index is the performance of the space measurement and control network measurement and control data transmission resource service; the second layer of indexes comprise network coverage, application response, scheduling satisfaction and task completion; the third layer of indexes comprise low-orbit satellite orbit coverage rate, medium-orbit satellite orbit coverage rate and high-orbit satellite orbit coverage rate, user resource demand submission accuracy rate, user resource demand acceptance response time, daily task satisfaction rate, emergency resource application response time, task execution success rate and plan stability.
4. The performance evaluation method according to any one of claims 1 to 3, wherein the second-level index and the third-level index are associated as follows:
the second layer of index network coverage is used for measuring the coverage degree of the measurement and control network on the task orbit of the satellite to which the user belongs, and the coverage rate of the low-orbit satellite orbit and the coverage rate of the medium-orbit satellite orbit are measured
The third layer index;
the second-layer index application response is used for measuring the acceptance and time response degree of daily demands and emergency demands submitted by users and is characterized by three third-layer indexes, namely user resource demand submission accuracy, user resource demand acceptance rate and user resource demand acceptance response time;
the second layer of index scheduling satisfies the degree of satisfying the user requirements for measuring the acceptance through the aerospace measurement and control network resource scheduling, and is represented by three third layer indexes of daily task satisfaction rate, emergency task satisfaction rate and emergency resource application response time;
the second layer index task completion is used for measuring the execution completion degree of the user resource use plan and is represented by two third layer indexes of task execution success rate and plan stability.
5. The performance evaluation method of claim 1, wherein the dimensionless processing of the third-level metrics comprises:
and converting the third layer index into a dimensionless value between 0 and 1 in a piecewise linear normalization mode.
6. The performance evaluation method of claim 1, wherein determining the weight of each index in the evaluation index system by a hierarchical analysis comprises:
constructing a judgment matrix on the hierarchical structure of the evaluation index system;
calculating a weight vector of a judgment matrix, and carrying out consistency check on the judgment matrix;
and solving and determining the weight of each layer index by adopting a characteristic value method according to the weight vector.
7. The performance evaluation method according to claim 1, wherein the evaluation of the performance of the data transmission resource services of the space measurement and control network by linear weighted integration according to the weight of each index in the evaluation index system comprises:
obtaining a second-layer index value by adopting an arithmetic weighted average method according to the third-layer index weight and the index value of the evaluation index system;
and obtaining the measurement and control data transmission resource service efficiency index of the space measurement and control network by adopting an arithmetic weighted average method according to the index weight and the index value of the second layer of the evaluation index system.
8. A spaceflight measurement and control network measurement and control data transmission resource service efficiency evaluation system is characterized by comprising:
the data acquisition module is used for determining basic data of the data transmission resource service measured and controlled by a user by using the space measurement and control network;
the system construction module is used for constructing an evaluation index system of the measurement and control data transmission resource service efficiency of the space measurement and control network according to the basic data; the evaluation index system comprises a first layer index, a second layer index and a third layer index; carrying out dimensionless processing on the third layer of indexes;
the weight analysis module is used for determining the weight of each index in the evaluation index system in a hierarchical analysis mode;
and the efficiency evaluation module is used for comprehensively evaluating the measurement and control data transmission resource service efficiency of the space measurement and control network through linear weighting according to the weight of each index in the evaluation index system.
9. A computer arrangement comprising a memory and a processor, the memory storing a computer program, wherein the processor when executing the computer program performs the steps of the method according to any of the claims 1-7.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 7.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116011889A (en) * | 2023-03-22 | 2023-04-25 | 中国人民解放军国防科技大学 | Multi-satellite measurement and control plan efficiency evaluation method, system and device |
| CN116011891A (en) * | 2023-03-24 | 2023-04-25 | 中国西安卫星测控中心 | Space measurement and control resource utilization effect determining method based on time classification |
| CN116070062A (en) * | 2023-03-08 | 2023-05-05 | 中国西安卫星测控中心 | Method for analyzing and calculating coverage capacity of space survey operation control network |
| CN117454515A (en) * | 2023-10-30 | 2024-01-26 | 哈尔滨工业大学（威海） | Performance evaluation method and system of satellite simulation system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116070062A (en) * | 2023-03-08 | 2023-05-05 | 中国西安卫星测控中心 | Method for analyzing and calculating coverage capacity of space survey operation control network |
| CN116011889A (en) * | 2023-03-22 | 2023-04-25 | 中国人民解放军国防科技大学 | Multi-satellite measurement and control plan efficiency evaluation method, system and device |
| CN116011891A (en) * | 2023-03-24 | 2023-04-25 | 中国西安卫星测控中心 | Space measurement and control resource utilization effect determining method based on time classification |
| CN117454515A (en) * | 2023-10-30 | 2024-01-26 | 哈尔滨工业大学（威海） | Performance evaluation method and system of satellite simulation system |
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