阅读说明：本技术 一种基于一致性模型的卫星通信系统的可靠性衡量方法 (Satellite communication system reliability measuring method based on consistency model ) 是由 齐东元 史焱 李江华 于 2020-12-28 设计创作，主要内容包括：本发明涉及卫星通信领域,公开了一种基于一致性模型的卫星通信系统的可靠性衡量方法,解决了如何评估大型卫星通信系统中节点设备的更换导致卫星通信网络可靠性是否降低的问题,其技术方案要点是包括以下步骤：S1.卫星通信系统设立节点设备更换申请服务器,收集待更换设备的结构、功能、设计原理、工作原理、材料组成和工作环境等关键参数。S2.设计一种卫星通信设备一致性模型,得到一致性判断因子计算方法,一致性判断因子取值范围为0到1之间。S3.通过新旧设备关键参数差值占原参数的比例确定一致性模型六个关键参数的取值。S4.通过层次分析法对六个关键参数的权重值进行计算。S5.最后根据一致性模型,求得一致性判断因子的具体值,其越接近1,表示一致性越强,与1的差值表示卫星通信系统可靠性的减弱程度。本发明能够实现精确评估大型卫星通信系统中节点设备的更换导致卫星通信网络可靠性是否降低的问题,极大的提高了评估卫星通信系统运行可靠度的准确性。(The invention relates to the field of satellite communication, and discloses a method for measuring the reliability of a satellite communication system based on a consistency model, which solves the problem of how to evaluate whether the reliability of a satellite communication network is reduced or not caused by the replacement of node equipment in a large-scale satellite communication system, and the key points of the technical scheme are as follows: s1, a satellite communication system sets a node equipment replacement application server and collects key parameters of the structure, the function, the design principle, the working principle, the material composition, the working environment and the like of equipment to be replaced. And S2, designing a consistency model of the satellite communication equipment to obtain a consistency judgment factor calculation method, wherein the value range of the consistency judgment factor is 0-1. And S3, determining values of six key parameters of the consistency model according to the ratio of the difference value of the key parameters of the new equipment to the original parameters. And S4, calculating the weight values of the six key parameters by an analytic hierarchy process. And S5, finally, according to the consistency model, obtaining a specific value of the consistency judgment factor, wherein the closer the specific value is to 1, the stronger the consistency is, and the difference value between the specific value and 1 represents the weakening degree of the reliability of the satellite communication system. The method and the device can realize the problem of accurately evaluating whether the reliability of the satellite communication network is reduced or not due to the replacement of the node equipment in the large-scale satellite communication system, and greatly improve the accuracy of evaluating the operation reliability of the satellite communication system.)

1. A reliability measurement method of a satellite communication system based on a consistency model is characterized in that: the method comprises the steps that a satellite communication system node equipment replacement application server collects key parameters of equipment to be replaced, a consistency model is designed for the equipment, and a consistency judgment factor value is obtained through calculation, so that whether the reliability of a satellite communication system is reduced or not is accurately evaluated;

the method comprises the following steps:

s1, the satellite communication system sets up a node equipment replacement application server, and collects key parameters of the equipment to be replaced, such as hardware structure, working frequency, throughput, working voltage, code redundancy, version parameters and the like;

s2, designing a consistency model of the satellite communication node equipment, wherein the consistency judgment factor isThe value range is between 0 and 1;

s3, determining values of six key parameters of the consistency model according to the ratio of the difference value of the key parameters of the new and old equipment to the original parameters;

s4, calculating the weight values of the six key parameters by an analytic hierarchy process;

and S5, finally, according to the consistency model, obtaining a specific value of the consistency judgment factor, wherein the closer the specific value is to 1, the stronger the consistency is, and the difference value between the specific value and 1 represents the weakening degree of the reliability of the satellite communication system.

2. The method of claim 1, wherein the consistency model is designed to:

according to six parameters of a hardware structure, a working frequency, a throughput, a working voltage, code redundancy and a version parameter, the consistency judgment factor can be expressed as:

whereinIs a specific value of the i-th parameter,is the ith parameterThe weight value of (2).

3. The satellite communication node device consistency model according to claim 2, wherein, for how to determine the values of the six key parameters in the model, the values of the six parameters are determined based on the ratio of the difference value of the key parameters of the old and new devices to the original parameters, and the value ranges of the six parameters are: the hardware structure is changed according to the structures of new and old equipment, and the range of the available values is that the minimum is not less than 0 and the maximum is not more than 1; the working frequency is changed according to the clock frequency of the new and old equipment, and the range of the working frequency is not less than 0 at the minimum and not more than 1 at the maximum; the throughput is changed according to the signal forwarding rate of the new and old equipment, and the minimum value range is not less than 0 and the maximum value range is not more than 1; the working voltage changes according to the working voltage of the new and old equipment, and the range of the working voltage is not less than 0 at the minimum and not more than 1 at the maximum; the code redundancy is changed according to the software codes of the new and old equipment, and the range of the retrievable value is that the minimum is not less than 0 and the maximum is not more than 1; and the version parameter is updated according to the software code version of the new and old equipment, and the minimum value range is not less than 0 and the maximum value range is not more than 1.

4. The satellite communications node device conformance model of claim 2, wherein weight values for six key parameters in the modelHow to determine is calculated according to the analytic hierarchy processComprises the following steps:

s21: establishing a set of importance evaluation factors according to importance differences among six parameters

；

S22: by setting comparison among schemes with different importance degrees of six parameters, a judgment matrix can be obtained, wherein the scale sum of the matrix is defined as follows:

scale Definition of 1 Parameter i is as important as parameter j 3 Parameter i is slightly more important than parameter j 5 Parameter i is significantly more important than parameter j 7 Parameter i is more strongly important than parameter j 9 Parameter i is extremely important than parameter j 2，4，6，8 Median folding value

S23: according to the set U and the scale table, a judgment matrix P can be obtained:

s24: the matrix P is subjected to row-wise geometric averaging：

S25: from the geometric mean of each row of the decision matrix PA normalized weight vector may be calculatedThe value of (c):

s26: through the steps, the weight values of the six key parameters are obtained as follows:。

5. the method of claim 1, wherein the method comprises: consistency judging factorThe calculation method comprises the following steps:

weighting values of six key parameters are as follows:substituting:

can obtain the productThe more close it is to 1, the stronger the consistency, anda difference of 1 indicates a degree of degradation in the reliability of the satellite communication system.

Technical Field

The invention relates to the field of satellite communication, in particular to reliability evaluation of key node equipment in a ground station based on a satellite communication system.

Background

China belongs to a country with multiple natural disasters, the territory area of China is large, and the occurrence uncertainty of the disasters is high, related units and personnel have high randomness in time and space when taking part in emergency rescue and disaster relief actions, satellite communication is not limited by regions and ground network operator base stations, communication quality is not affected by serious natural disasters such as earthquakes, and the emergency communication mode becomes important.

When a major disaster is faced, in order to meet the high-frequency and random communication requirements, the communication reliability of a command center (central station) becomes a short board for major disaster rescue command.

With the increase of running time of networks based on satellite communication in the market at present, especially after the node equipment is replaced, the reliability of the whole satellite communication system cannot be reasonably evaluated.

Disclosure of Invention

The purpose of the invention is as follows: the invention aims to provide a method for measuring the reliability of a satellite communication system based on a consistency model, which solves the defects in the prior art.

The technical scheme is as follows: the invention relates to a method for measuring the reliability of a satellite communication system based on a consistency model, which is characterized by comprising the following steps: the method comprises the steps that a satellite communication system node equipment replacement application server collects key parameters of equipment to be replaced, a consistency model is designed for the equipment, and a consistency judgment factor value is obtained through calculation, so that whether the reliability of a satellite communication system is reduced or not is accurately evaluated. The method comprises the following steps:

and S1, the satellite communication system sets up a node equipment replacement application server, and collects key parameters of the equipment to be replaced, such as hardware structure, working frequency, throughput, working voltage, code redundancy, version parameters and the like.

S2, designing a consistency model of the satellite communication node equipment, wherein the consistency judgment factor isThe value range is between 0 and 1.

And S3, determining values of six key parameters of the consistency model according to the ratio of the difference value of the key parameters of the new equipment and the old equipment to the original parameters.

And S4, calculating the weight values of the six key parameters by an analytic hierarchy process.

And S5, finally, according to the consistency model, obtaining a specific value of the consistency judgment factor, wherein the closer the specific value is to 1, the stronger the consistency is, and the difference value between the specific value and 1 represents the weakening degree of the reliability of the satellite communication system.

As a preferred aspect of the present invention, the satellite communication node device consistency model is designed to:

according to six parameters of a hardware structure, a working frequency, a throughput, a working voltage, code redundancy and a version parameter, the consistency judgment factor can be expressed as:

whereinIs a specific value of the i-th parameter,is the ith parameterThe weight value of (2).

Further, how to determine the values of the six key parameters in the model is determined based on the ratio of the difference value of the key parameters of the new and old equipment to the original parameters, wherein the value ranges of the six parameters are as follows: the hardware structure is changed according to the structures of new and old equipment, and the range of the available values is that the minimum is not less than 0 and the maximum is not more than 1; the working frequency is changed according to the clock frequency of the new and old equipment, and the range of the working frequency is not less than 0 at the minimum and not more than 1 at the maximum; the throughput is changed according to the signal forwarding rate of the new and old equipment, and the minimum value range is not less than 0 and the maximum value range is not more than 1; the working voltage changes according to the working voltage of the new and old equipment, and the range of the working voltage is not less than 0 at the minimum and not more than 1 at the maximum; the code redundancy is changed according to the software codes of the new and old equipment, and the range of the retrievable value is that the minimum is not less than 0 and the maximum is not more than 1; and the version parameter is updated according to the software code version of the new and old equipment, and the minimum value range is not less than 0 and the maximum value range is not more than 1.

Further, weight values for six key parameters in the modelHow to determine is calculated according to the analytic hierarchy processComprises the following steps:

s21: establishing a set of importance evaluation factors according to importance differences among six parameters；

S22: by setting comparison among schemes with different importance degrees of six parameters, a judgment matrix can be obtained, wherein the scale sum of the matrix is defined as follows:

s23: according to the set U and the scale table, a judgment matrix P can be obtained:

s24: the matrix P is subjected to row-wise geometric averaging：

S25: from the geometric mean of each row of the decision matrix PA normalized weight vector may be calculatedThe value of (c):

s26: through the steps, the weight values of the six key parameters are obtained as follows:

further, according to the consistency model, consistency judgment factorThe calculation method comprises the following steps:

weighting values of six key parameters are as follows:substituting:

can obtain the productThe closer to 1, the stronger the consistency, and the difference from 1 indicates the degree of degradation in the reliability of the satellite communication system.

Has the advantages that: the invention discloses a method for measuring the reliability of a satellite communication system based on a consistency model.A server for applying for the replacement of node equipment of the satellite communication system collects key parameters of equipment to be replaced, designs a consistency model for the equipment, and calculates to obtain a value of a consistency judgment factor, thereby accurately evaluating whether the reliability of the satellite communication system is reduced or not, and effectively solving the problem that the reliability of the system cannot be accurately evaluated after the node equipment of the satellite communication system is replaced.

Drawings

FIG. 1 is a flowchart of a method for reliability measurement of a satellite communication system based on a consistency model according to an embodiment of the present invention;

fig. 2 is a schematic diagram illustrating a deployment of a middle node device replacement application server in a satellite communication system according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1: the invention relates to a method for measuring the reliability of a satellite communication system based on a consistency model, which is characterized by comprising the following steps: the method comprises the steps that a satellite communication system node equipment replacement application server collects key parameters of equipment to be replaced, a consistency model is designed for the equipment, and a consistency judgment factor value is obtained through calculation, so that whether the reliability of a satellite communication system is reduced or not is accurately evaluated. The method comprises the following steps:

s1, as shown in FIG. 2: the satellite communication system sets up a node equipment replacement application server and collects key parameters of hardware structure, working frequency, throughput, working voltage, code redundancy, version parameters and the like of equipment to be replaced.

S2, designing a consistency model of the satellite communication node equipment, wherein the consistency judgment factor isThe value range is between 0 and 1.

And S3, determining values of six key parameters of the consistency model according to the ratio of the difference value of the key parameters of the new equipment and the old equipment to the original parameters.

And S4, calculating the weight values of the six key parameters by an analytic hierarchy process.

And S5, finally, according to the consistency model, obtaining a specific value of the consistency judgment factor, wherein the closer the specific value is to 1, the stronger the consistency is, and the difference value between the specific value and 1 represents the weakening degree of the reliability of the satellite communication system.

As a preferred aspect of the present invention, the satellite communication node device consistency model is designed to:

according to six parameters of a hardware structure, a working frequency, a throughput, a working voltage, code redundancy and a version parameter, the consistency judgment factor can be expressed as:

whereinIs a specific value of the i-th parameter,is the ith parameterThe weight value of (2).

Determining how to determine the values of the six key parameters in the model, and determining the values of the six parameters based on the ratio of the difference value of the key parameters of the new and old equipment to the original parameters, wherein the value ranges of the six parameters are as follows: the hardware structure is changed according to the structures of new and old equipment, and the range of the available values is that the minimum is not less than 0 and the maximum is not more than 1; the working frequency is changed according to the clock frequency of the new and old equipment, and the range of the working frequency is not less than 0 at the minimum and not more than 1 at the maximum; the throughput is changed according to the signal forwarding rate of the new and old equipment, and the minimum value range is not less than 0 and the maximum value range is not more than 1; the working voltage changes according to the working voltage of the new and old equipment, and the range of the working voltage is not less than 0 at the minimum and not more than 1 at the maximum; the code redundancy is changed according to the software codes of the new and old equipment, and the range of the retrievable value is that the minimum is not less than 0 and the maximum is not more than 1; and the version parameter is updated according to the software code version of the new and old equipment, and the minimum value range is not less than 0 and the maximum value range is not more than 1.

Weight values for six key parameters in a modelHow to determine is calculated according to the analytic hierarchy processComprises the following steps:

s21: establishing a set of importance evaluation factors according to importance differences among six parameters；

S22: by setting comparison among schemes with different importance degrees of six parameters, a judgment matrix can be obtained, wherein the scale sum of the matrix is defined as follows:

scale	Definition of
		1	Parameter i is as important as parameter j
3	Parameter i is slightly more important than parameter j
		5	Parameter i is significantly more important than parameter j
7	Parameter i is more strongly important than parameter j
		9	Parameter i is extremely important than parameter j
2，4，6，8	Median folding value

S23: according to the set U and the scale table, a judgment matrix P can be obtained:

s24: the matrix P is subjected to row-wise geometric averaging：

S25: from the geometric mean of each row of the decision matrix PA normalized weight vector may be calculatedThe value of (c):

s26: through the steps, the weight values of the six key parameters are obtained as follows:

according to the consistency model, a consistency judgment factorThe calculation method comprises the following steps:

weighting values of six key parameters are as follows:substituting:

can obtain the productThe closer to 1, the stronger the consistency, and the difference from 1 indicates the degree of degradation in the reliability of the satellite communication system.

The invention discloses a method for measuring the reliability of a satellite communication system based on a consistency model.A server for applying for the replacement of node equipment of the satellite communication system collects key parameters of equipment to be replaced, designs a consistency model for the equipment, and calculates to obtain a value of a consistency judgment factor, thereby accurately evaluating whether the reliability of the satellite communication system is reduced or not, and effectively solving the problem that the reliability of the system cannot be accurately evaluated after the node equipment of the satellite communication system is replaced.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.