CN112561409B - Fault assessment method and system for ground receiving system of remote sensing satellite - Google Patents
Fault assessment method and system for ground receiving system of remote sensing satellite Download PDFInfo
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- CN112561409B CN112561409B CN202110204957.8A CN202110204957A CN112561409B CN 112561409 B CN112561409 B CN 112561409B CN 202110204957 A CN202110204957 A CN 202110204957A CN 112561409 B CN112561409 B CN 112561409B
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Abstract
The invention discloses a fault evaluation method and a system of a ground receiving system of a remote sensing satellite, wherein the method comprises the following steps: determining the capacity requirement of the ground receiving system according to the attribute characteristics of the remote sensing satellite; and configuring the type and quantity of system resources; performing service analysis on the system, determining system service logic, and establishing a system evaluation model according to the system service logic; loading the fault equipment data to the system evaluation model, and analyzing the system capacity state corresponding to the fault equipment; and evaluating the overall system capacity state of the system according to the capacity requirement of the remote sensing satellite ground receiving system and the type and the quantity of system resources and in combination with the system capacity state corresponding to the fault equipment, and determining and mapping the overall fault level of the system according to the overall system capacity state. The invention can enable the manager to master the data receiving capability of the system according to the evaluation result, reasonably arrange the data receiving task and improve the utilization rate of the equipment.
Description
Technical Field
The invention relates to the field of ground receiving of remote sensing satellites, in particular to a fault evaluation method and system of a ground receiving system of a remote sensing satellite.
Background
The ground receiving system of the remote sensing satellite has the capability of receiving the data of the remote sensing satellite, and plays an important role in the wide application of the data of the remote sensing satellite. With the increasing number of the emission remote sensing satellites, the data volume downloaded by the remote sensing satellites is more and more huge, the data receiving pressure born by the ground receiving system is increased, and the receiving and processing equipment in the ground receiving system is under the pressure of high-load operation.
In order to improve the reliability of a ground receiving system and ensure the timeliness of receiving data of the remote sensing satellite, managers of a ground receiving station of the remote sensing satellite must constantly pay attention to the state of equipment in the station, master the capacity of the ground receiving system for receiving data downloaded by the remote sensing satellite, reasonably schedule the equipment in the station to complete a data receiving task of the remote sensing satellite and timely maintain fault equipment. With increasing data receiving tasks, under the condition that the timeliness of equipment maintenance cannot be guaranteed, how a ground receiving station effectively evaluates the receiving capacity of a system according to the fault state of equipment, selects maintenance objects in a key and orderly manner, fully utilizes resources in the station, and becomes a problem of key attention of ground receiving station managers.
At present, there are many general theoretical methods for system capability assessment, including a capability fuzzy comprehensive evaluation method, an analytic hierarchy process, a gray whitening weight function method, and the like. However, the ground receiving system of the remote sensing satellite is a very large and very complex system, and how to develop a method for evaluating the fault of the ground receiving system of the remote sensing satellite according to the characteristics of the ground receiving system of the remote sensing satellite is a problem worthy of research and solution.
Disclosure of Invention
Aiming at the problems in the related art, the invention provides a fault evaluation method and system for a ground receiving system of a remote sensing satellite.
The technical scheme of the invention is realized as follows:
according to one aspect of the invention, a fault assessment method for a ground receiving system of a remote sensing satellite is provided.
The fault evaluation method of the ground receiving system of the remote sensing satellite comprises the following steps:
analyzing a remote sensing satellite ground receiving system to be evaluated to obtain equipment fault information recorded in the operation of the remote sensing satellite ground receiving system;
determining the capacity requirement of the ground receiving system of the remote sensing satellite according to the attribute characteristics of the remote sensing satellite received by the ground receiving system of the remote sensing satellite; according to the capacity requirement, determining the type and the quantity of system resources meeting the capacity requirement from a pre-configured ground receiving system index system;
carrying out service analysis on the ground receiving system of the remote sensing satellite, determining the system service logic of the ground receiving system of the remote sensing satellite, and establishing a system evaluation model according to the system service logic;
determining fault equipment data corresponding to the equipment fault information according to the equipment fault information, loading the fault equipment data to the system evaluation model, and analyzing the system capacity state corresponding to the fault equipment by using the evaluation logic of the system evaluation model;
and according to the capacity requirement of the ground receiving system of the remote sensing satellite, the type and the quantity of system resources, and the system capacity state corresponding to the fault equipment, evaluating the whole system capacity state of the ground receiving system of the remote sensing satellite, and according to the whole system capacity state, determining and mapping the whole fault level of the ground receiving system of the remote sensing satellite through a preset fault level index.
In addition, the fault evaluation method of the ground receiving system of the remote sensing satellite further comprises the following steps: and after the integral fault level of the ground receiving system of the remote sensing satellite is determined and mapped, displaying the receiving capacity evaluation result of the system and the related fault equipment information in a visual form.
In addition, the equipment failure information includes equipment component failure information and equipment unit failure information. And equipment fault information is uploaded to a monitoring terminal or a data storage disk of the ground receiving system by each equipment through a network according to a certain data packet format. Acquiring equipment fault information from monitoring terminal or data storage disk of ground receiving system when acquiring equipment fault information
In addition, the ground receiving system index system is composed of the following indexes: system capability index, subsystem capability index, equipment capability index, component capability index, unit capability index; wherein the system capability index comprises system receiving capability, system capability requirement and system resource configuration. The system capacity requirement is used as a necessary index for system capacity evaluation, mainly comprises the type of equipment required by the system, the necessary equipment quantity and the necessary functions of the equipment, and the equipment meeting the system capacity requirement is screened as the resource configuration of the system. The system resource allocation is embodied as all resource information which can meet the system capability in the system, and comprises the resource type, the total quantity of all the resources and the functions of the resources. A system generally comprises a plurality of subsystems, and the capability state of equipment in each subsystem determines the capability state of the subsystem; a device is generally composed of a plurality of components, and the capability state of a component determines the capability state of the device; a device component is generally composed of one or more device units, and the capability status of a device unit determines the capability status of the device component.
In addition, the system evaluation model includes: evaluating a model structure, evaluating logic and model nodes; wherein the evaluation model structure is a tree structure evaluated layer by layer from bottom to top; the structure of the evaluation model is from the bottom layer to the top layer, and the derivation path of each layer is determined by the evaluation logic; the evaluation logic evaluates the capability state layer by layer according to the weighted value of the index by taking the index state of the corresponding related low-layer element as basic data; the model nodes are elements of various indexes to be evaluated, are divided into five levels of a system, a subsystem, equipment, a component and a unit, and comprise all the monitorable equipment in the system. It should be noted that, the service logic can be generally divided into an antenna feeding subsystem, a channel subsystem, a testing subsystem, and a technical support subsystem, each subsystem is composed of multiple types of devices, each type of device includes multiple components, and each component includes multiple device units.
In addition, when the service analysis is carried out on the remote sensing satellite ground receiving system, the system service logic of the remote sensing satellite ground receiving system is determined, and a system evaluation model is established according to the system service logic, the method can be carried out in the following modes:
taking a ground receiving system index system as a basis, and decomposing the ground receiving system into five levels of a system, a subsystem, equipment, a component and a unit from top to bottom according to a service logic level according to a service logic architecture of the ground receiving system of the remote sensing satellite, wherein the service logic relationship between the levels is that the upper level comprises the lower level;
establishing monitorable equipment in each level as an element of an index to be evaluated, and establishing a model node;
according to the upper and lower level containing relations among the levels, the evaluation logic establishes that the evaluation result of the capability fault level of the high-level model node depends on the fault state of the low-level model node; according to the characteristics of each level model node, establishing an evaluation logic which accords with the fault capability judgment of the level model, wherein the evaluation logic is to take the fault state of a low level model node to carry out union, intersection or union operation, and the operation result is the capability state corresponding to the high level model node;
and forming an evaluation model structure from bottom to top from the bottom to the top in a reverse way according to the upper and lower level business logic relationship between each level and the fault evaluation logic of the upper and lower level model nodes.
In addition, the fault level indicators include the following three levels: hidden danger, capacity reduction and failure exist; and the fault grade evaluation logic of the fault grade index is as follows: when fault equipment exists in a station but is not used for building a real-time ground receiving system, hidden danger exists in the system; when fault equipment exists in the station, the fault equipment is used for establishing a ground receiving system, but other normal equipment does not influence the normal satellite data receiving of the ground receiving system, the data receiving capacity of the system to the satellite is reduced; when fault equipment exists in the station, the fault equipment is used for building a ground receiving system, and other normal equipment cannot meet the receiving requirement of the ground receiving system, the system breaks down, and the system loses the data receiving capability of the satellite.
According to another aspect of the invention, a fault evaluation system of a ground receiving system of a remote sensing satellite is provided.
The fault evaluation system of the ground receiving system of the remote sensing satellite comprises:
the system comprises a fault information acquisition module, a fault information analysis module and a fault information analysis module, wherein the fault information acquisition module is used for analyzing a remote sensing satellite ground receiving system to be evaluated and acquiring equipment fault information recorded in the operation of the remote sensing satellite ground receiving system;
the capacity and resource analysis module is used for determining the capacity requirement of the ground receiving system of the remote sensing satellite according to the attribute characteristics of the remote sensing satellite received by the ground receiving system of the remote sensing satellite; according to the capacity requirement, determining the type and the quantity of system resources meeting the capacity requirement from a pre-configured ground receiving system index system;
the evaluation model establishing module is used for carrying out service analysis on the remote sensing satellite ground receiving system, determining the system service logic of the remote sensing satellite ground receiving system and establishing a system evaluation model according to the system service logic;
the capacity evaluation module is used for determining fault equipment data corresponding to the equipment fault information according to the equipment fault information, loading the fault equipment data to the system evaluation model, and analyzing the system capacity state corresponding to the fault equipment by using the evaluation logic of the system evaluation model;
and the fault evaluation module is used for evaluating the overall system capacity state of the ground receiving system of the remote sensing satellite according to the capacity requirement of the ground receiving system of the remote sensing satellite, the type and the quantity of system resources and the system capacity state corresponding to the fault equipment, and determining and mapping the overall fault level of the ground receiving system of the remote sensing satellite according to the overall system capacity state and through a preset fault level index.
In addition, the fault evaluation system of the ground receiving system of the remote sensing satellite further comprises: and the fault display module is used for displaying the system receiving capacity evaluation result and related fault equipment information in a visual form after determining and mapping the integral fault level of the ground receiving system of the remote sensing satellite.
In addition, the system evaluation model includes: evaluating a model structure, evaluating logic and model nodes; wherein the evaluation model structure is a tree structure evaluated layer by layer from bottom to top; the structure of the evaluation model is from the bottom layer to the top layer, and the derivation path of each layer is determined by the evaluation logic;
in addition, the equipment failure information includes equipment component failure information and equipment unit failure information. And equipment fault information is uploaded to a monitoring terminal or a data storage disk of the ground receiving system by each equipment through a network according to a certain data packet format. Acquiring equipment fault information from monitoring terminal or data storage disk of ground receiving system when acquiring equipment fault information
In addition, the ground receiving system index system is composed of the following indexes: system capability index, subsystem capability index, equipment capability index, component capability index, unit capability index; wherein the system capability index comprises system receiving capability, system capability requirement and system resource configuration. The system capacity requirement is used as a necessary index for system capacity evaluation, mainly comprises the type of equipment required by the system, the necessary equipment quantity and the necessary functions of the equipment, and the equipment meeting the system capacity requirement is screened as the resource configuration of the system. The system resource allocation is embodied as all resource information which can meet the system capability in the system, and comprises the resource type, the total quantity of all the resources and the functions of the resources. A system generally comprises a plurality of subsystems, and the capability state of equipment in each subsystem determines the capability state of the subsystem; a device is generally composed of a plurality of components, and the capability state of a component determines the capability state of the device; a device component is generally composed of one or more device units, and the capability status of a device unit determines the capability status of the device component.
In addition, the system evaluation model includes: evaluating a model structure, evaluating logic and model nodes; wherein the evaluation model structure is a tree structure evaluated layer by layer from bottom to top; the structure of the evaluation model is from the bottom layer to the top layer, and the derivation path of each layer is determined by the evaluation logic; the evaluation logic evaluates the capability state layer by layer according to the weighted value of the index by taking the index state of the corresponding related low-layer element as basic data; the model nodes are elements of various indexes to be evaluated, are divided into five levels of a system, a subsystem, equipment, a component and a unit, and comprise all the monitorable equipment in the system. It should be noted that, the service logic can be generally divided into an antenna feeding subsystem, a channel subsystem, a testing subsystem, and a technical support subsystem, each subsystem is composed of multiple types of devices, each type of device includes multiple components, and each component includes multiple device units.
Further, the fault level indicator includes the following three levels: hidden danger, capacity reduction and failure exist; and the fault grade evaluation logic of the fault grade index is as follows: when fault equipment exists in a station but is not used for building a real-time ground receiving system, hidden danger exists in the system; when fault equipment exists in the station, the fault equipment is used for establishing a ground receiving system, but other normal equipment does not influence the normal satellite data receiving of the ground receiving system, the data receiving capacity of the system to the satellite is reduced; when fault equipment exists in the station, the fault equipment is used for building a ground receiving system, and other normal equipment cannot meet the receiving requirement of the ground receiving system, the system breaks down, and the system loses the data receiving capability of the satellite.
The invention can make the ground receiving system of the remote sensing satellite regularly finish the fault evaluation, the system management personnel can master the data receiving capacity of the ground receiving system of the remote sensing satellite according to the evaluation result, reasonably arrange the data receiving task, and select the maintenance object with key order according to the influence level of the fault equipment on the system capacity, fully utilize the resources in the station and improve the utilization rate of the equipment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic flow chart of a fault evaluation method of a ground receiving system of a remote sensing satellite according to an embodiment of the invention;
FIG. 2 is a block diagram of a fault evaluation system of a ground receiving system of a remote sensing satellite according to an embodiment of the invention;
FIG. 3 is an index architecture diagram of a remote sensing satellite ground reception system according to an embodiment of the invention;
FIG. 4 is a logical structure diagram of an evaluation model of a ground receiving system of a remote sensing satellite according to an embodiment of the invention;
FIG. 5 is an exemplary diagram of a system capability status and system failure level mapping relationship in the case of a failure level being a failure, according to an embodiment of the invention;
FIG. 6 is an exemplary diagram of a system capability status and system failure level mapping relationship in the case of a reduced capability failure level, according to an embodiment of the invention;
fig. 7 is an exemplary diagram of a mapping relationship between a system capability state and a system failure level in a case that a failure level is hidden according to an embodiment of the present invention.
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 that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
According to the embodiment of the invention, a fault evaluation method of a ground receiving system of a remote sensing satellite is provided.
As shown in fig. 1, the method for evaluating the fault of the ground receiving system of the remote sensing satellite according to the embodiment of the invention comprises the following steps:
step S101, analyzing a remote sensing satellite ground receiving system to be evaluated, and acquiring equipment fault information recorded in the operation of the remote sensing satellite ground receiving system;
step S102, determining the capacity requirement of the ground receiving system of the remote sensing satellite according to the attribute characteristics of the remote sensing satellite received by the ground receiving system of the remote sensing satellite; according to the capacity requirement, determining the type and the quantity of system resources meeting the capacity requirement from a pre-configured ground receiving system index system;
step S103, carrying out service analysis on the ground receiving system of the remote sensing satellite, determining the system service logic of the ground receiving system of the remote sensing satellite, and establishing a system evaluation model according to the system service logic;
step S104, determining fault equipment data corresponding to the equipment fault information according to the equipment fault information, loading the fault equipment data to the system evaluation model, and analyzing the system capacity state corresponding to the fault equipment by using the evaluation logic of the system evaluation model;
and S105, evaluating the overall system capacity state of the ground receiving system of the remote sensing satellite according to the capacity requirement of the ground receiving system of the remote sensing satellite, the type and the quantity of system resources and the system capacity state corresponding to the fault equipment, and determining and mapping the overall fault level of the ground receiving system of the remote sensing satellite according to the overall system capacity state and through a preset fault level index.
In specific application, the fault evaluation method of the ground receiving system of the remote sensing satellite further comprises the following steps: and after the integral fault level of the ground receiving system of the remote sensing satellite is determined and mapped, displaying the receiving capacity evaluation result of the system and the related fault equipment information in a visual form.
In addition, the equipment failure information includes equipment component failure information and equipment unit failure information. And equipment fault information is uploaded to a monitoring terminal or a data storage disk of the ground receiving system by each equipment through a network according to a certain data packet format. When the equipment fault information is obtained, the equipment fault information is obtained from a monitoring terminal or a data storage disk of a ground receiving system, and the ground receiving system index system comprises the following indexes: system capability index, subsystem capability index, equipment capability index, component capability index, unit capability index; wherein the system capability index comprises system receiving capability, system capability requirement and system resource configuration. The system capacity requirement is used as a necessary index for system capacity evaluation, mainly comprises the type of equipment required by the system, the necessary equipment quantity and the necessary functions of the equipment, and the equipment meeting the system capacity requirement is screened as the resource configuration of the system. The system resource allocation is embodied as all resource information which can meet the system capability in the system, and comprises the resource type, the total quantity of all the resources and the functions of the resources. A system generally comprises a plurality of subsystems, and the capability state of equipment in each subsystem determines the capability state of the subsystem; a device is generally composed of a plurality of components, and the capability state of a component determines the capability state of the device; a device component is generally composed of one or more device units, and the capability status of a device unit determines the capability status of the device component.
In practical application, the service logic can be divided into an antenna feeding subsystem, a channel subsystem, a testing subsystem and a technical support subsystem, each subsystem is composed of multiple types of equipment, each type of equipment comprises multiple components, each component comprises multiple equipment units, and in this case, the system evaluation model comprises: evaluating a model structure, evaluating logic and model nodes; wherein the evaluation model structure is a tree structure evaluated layer by layer from bottom to top; the structure of the evaluation model is from the bottom layer to the top layer, and the derivation path of each layer is determined by the evaluation logic; the evaluation logic evaluates the capability state layer by layer according to the weighted value of the index by taking the index state of the corresponding related low-layer element as basic data; the model nodes are elements of various indexes to be evaluated, are divided into five levels of a system, a subsystem, equipment, a component and a unit, and comprise all the monitorable equipment in the system.
Specifically, the evaluation logic data source is adjacent low-level model node data, and the conclusion is the capability state of adjacent high-level model nodes.
For the unit-level index, the unit-level index is the bottom element in the evaluation model, and includes two states: and (5) normal and fault, and acquiring related fault data information according to the evaluation data range.
For the component-level indicator, the states of the component-level indicator include three types: normality, capacity degradation, and failure, determined by unit-level indicator states, with evaluation logic: when all units contained in the assembly fail, the assembly fails, and when only part of the units fail, the assembly capacity is reduced;
for the device-level metrics, the states of the device-level metrics include four types: the method is characterized in that the method is normal, has hidden danger, capability is reduced and faults, the level index represents an index of the influence of the same equipment state on the system capability, the system capability requirement and the system resource configuration need to be combined, and the evaluation logic is determined according to the component level index state: when the component contained in the equipment fails, and when the capacity of the component contained in the equipment is reduced, the capacity of the equipment is reduced; when the number of the equipment in the normal state is smaller than the system capacity requirement in the equipment, the equipment level index state is a fault; in the equipment, when the number of equipment which has equipment faults but is in a normal state is larger than the system capacity requirement and smaller than the system resource configuration, the equipment level index state is capacity reduction; in the equipment, when the equipment with reduced capability exists, the equipment level index state is hidden danger;
for the sub-system level indicator, the state of the sub-system level indicator includes four types: normal, hidden danger, capacity decline, trouble exist, are decided by equipment level index state, and the evaluation logic is: when one or more equipment level index states exist in the subsystem, the subsystem level index state is capacity reduction;
for a system-level metric, the state of the system-level metric includes four types: normal, hidden danger, capacity reduction and fault exist, and the evaluation logic is as follows, and is determined by the level index state of the subsystem: when the hierarchy index state of a subsystem is a fault, the hierarchy index state of the system is a fault, when the hierarchy index state of one or more subsystems is a capacity reduction, the hierarchy index state of the system is a capacity reduction, and when the hierarchy index state of one or more subsystems is a hidden danger, the hierarchy index state of the system is a hidden danger
Further, the fault level indicator includes the following three levels: hidden danger, capacity reduction and failure exist; and the fault grade evaluation logic of the fault grade index is as follows: when fault equipment exists in a station but is not used for building a real-time ground receiving system, hidden danger exists in the system; when fault equipment exists in the station, the fault equipment is used for establishing a ground receiving system, but other normal equipment does not influence the normal satellite data receiving of the ground receiving system, the data receiving capacity of the system to the satellite is reduced; when fault equipment exists in the station, the fault equipment is used for building a ground receiving system, and other normal equipment cannot meet the receiving requirement of the ground receiving system, the system breaks down, and the system loses the data receiving capability of the satellite.
According to the embodiment of the invention, the fault evaluation system of the ground receiving system of the remote sensing satellite is provided.
As shown in fig. 2, the system for evaluating the fault of the ground receiving system of the remote sensing satellite according to the embodiment of the present invention includes:
the system comprises a fault information acquisition module 201, a fault information acquisition module and a fault information analysis module, wherein the fault information acquisition module is used for analyzing a remote sensing satellite ground receiving system to be evaluated and acquiring equipment fault information recorded in the operation of the remote sensing satellite ground receiving system;
the capacity and resource analysis module 202 is used for determining the capacity requirement of the ground receiving system of the remote sensing satellite according to the attribute characteristics of the remote sensing satellite received by the ground receiving system of the remote sensing satellite; according to the capacity requirement, determining the type and the quantity of system resources meeting the capacity requirement from a pre-configured ground receiving system index system;
the evaluation model establishing module 203 is used for carrying out service analysis on the remote sensing satellite ground receiving system, determining the system service logic of the remote sensing satellite ground receiving system and establishing a system evaluation model according to the system service logic;
the capability evaluation module 204 is configured to determine, according to the device fault information, fault device data corresponding to the device fault information, load the fault device data to the system evaluation model, and analyze a system capability state corresponding to the fault device by using an evaluation logic of the system evaluation model;
and the fault evaluation module 205 is configured to evaluate the overall system capacity state of the ground receiving system of the remote sensing satellite according to the capacity requirement of the ground receiving system of the remote sensing satellite and the type and quantity of system resources in combination with the system capacity state corresponding to the faulty device, and determine and map the fault level of the entire ground receiving system of the remote sensing satellite according to the overall system capacity state and through a preset fault level index.
In practical application, the fault evaluation system of the ground receiving system of the remote sensing satellite further comprises: and the fault display module (not shown in the figure) is used for displaying the system receiving capacity evaluation result and related fault equipment information in a visual form after the integral fault level of the ground receiving system of the remote sensing satellite is determined and mapped.
For the convenience of understanding the above technical solutions of the present invention, the above technical solutions of the present invention are described in detail below by specific cases or principles.
When the system is used specifically, one remote sensing satellite ground receiving station comprises one or more sets of remote sensing satellite ground receiving systems and is responsible for receiving remote sensing data of a plurality of satellites. The remote sensing satellite ground receiving system generally comprises an antenna feeding subsystem, a channel subsystem, a testing subsystem and a technical support subsystem, wherein each subsystem comprises a plurality of types of communication equipment, each communication equipment comprises an equipment component or a unit, and the communication equipment in each subsystem can transmit the state parameters of the equipment component or the unit in real time through a network; according to the characteristics of a ground receiving system of a remote sensing satellite, the system capacity fault level is defined and generally divided into three types: hidden danger, capability reduction and failure exist. Wherein: when fault equipment exists in a receiving station but the fault equipment is not accessed to a ground receiving system on line, hidden danger exists in the system; when fault equipment exists in a receiving station, the fault equipment is accessed to a receiving ground receiving system in real time, but the normal satellite data receiving of the system is not influenced, the data receiving capacity of the system to the satellite is reduced; when fault equipment exists in a station, the fault equipment is accessed into a ground receiving system in real time and participates in satellite data receiving, and other normal equipment cannot meet the receiving requirement of the ground receiving system, the system breaks down, and the system loses the data receiving capability of the satellite;
and establishing a fault evaluation index system according to the satellite data receiving capacity of the remote sensing satellite ground receiving system, as shown in figure 3. The indicators that affect the system's capability include: system capability index, subsystem capability index, equipment capability index, component capability index, unit capability index. Wherein the system capability index comprises: system receiving capacity, system capacity requirements and system resource allocation; the system capacity requirement is used as a necessary index for system capacity evaluation, mainly comprises the type of equipment required by the system, the necessary equipment quantity and the necessary functions of the equipment, and the equipment meeting the system capacity requirement is screened as the resource of the system through the equipment functions. The system resource allocation is embodied as all resource information which can meet the system capability in the system, and comprises the resource type, the total quantity of all the resources and the functions of the resources. The subsystem capability indicators include: the antenna feedback subsystem capability, the channel subsystem capability, the test subsystem capability and the technical support subsystem capability; the device capability indicators include: an antenna, a frequency converter, an optical transmitter and receiver, a tracking receiver, a modem, a time system, a frequency spectrograph and the like; the component capability index comprises key components inside the equipment; the unit capability index includes key units of internal components of each device.
Determining a system fault evaluation object and an evaluation data range according to the data receiving capacity of the remote sensing satellite ground receiving system; specifically, the method comprises the following steps:
according to a fault evaluation index system, combining capability indexes of subsystems, equipment, components and units with an existing ground receiving system in a ground station, and determining that a system fault evaluation object is the ground receiving system of the ground station capable of receiving a certain remote sensing satellite, wherein the ground receiving system comprises all levels of elements covered in the fault evaluation index system;
the evaluation data range comprises fault information of all subsystem equipment related to a certain remote sensing satellite ground receiving system which is established as an evaluation object, and comprises component fault information and unit fault information inside the equipment. The information can be obtained from a monitoring terminal of the ground receiving system in real time, and also can be obtained from a data storage disk of the ground receiving system.
Configuring system capacity requirements and system resource configurations, dividing and configuring the system capacity requirements according to a system of an evaluation object, selecting all equipment types, necessary equipment quantity and necessary equipment functions required by the evaluation object, collecting equipment information in various equipment types related to each subsystem according to the system capacity requirements in a fault evaluation index system, and forming a system resource pool, for example, in the remote sensing satellite ground receiving system, equipment in a test subsystem is used for testing the capacity state of the system and does not belong to necessary equipment of the system receiving capacity, so the equipment types contained in the system capacity requirements are as follows: the system comprises an antenna, an optical transmission unit, a down converter, a tracking receiver, a demodulator and a time system;
an evaluation model is established according to a fault evaluation index system by taking a remote sensing satellite ground receiving system for receiving satellite data as an evaluation object, as shown in fig. 4. And establishing a layered evaluation model according to the hierarchy division in the fault evaluation index system and by combining a system resource pool which can be used by an evaluation object. The evaluation model comprises five levels of a system, a subsystem, equipment, a component and a unit from top to bottom, corresponds to a five-level hierarchical architecture in the fault index system, and is matched with the actual business hierarchy of an evaluation object. The evaluation model is evaluated layer by layer from bottom to top from the bottom equipment unit level, the derivation path of each layer is determined by the execution result of the evaluation logic, the evaluation logic takes the associated low-layer element index as basic data, evaluates the capability state layer by layer according to the weight value of the index, finally gives the evaluation conclusion of the system level receiving capability of the evaluation object, and maps to the three typical system receiving capability fault levels;
and the equipment fault state information acquired in the operation of the evaluation data range is used as evaluation data, and the layer-by-layer evaluation of the influence of the equipment fault information on the receiving capacity of the remote sensing ground receiving system is completed according to the fault evaluation index system and the fault evaluation model. Firstly, acquiring equipment unit state information from a monitoring terminal or a data storage disc of a ground receiving system, for example, for a down converter equipment in a channel subsystem, acquiring state information of a power module 1 and a power module 2 of the down converter from the monitoring terminal or the data storage disc, when the states of the two modules are normal, evaluating the state of the power module as normal, when any one module in the two modules has a fault, evaluating the state of the power module as capacity reduction, and when the states of the two modules are faults, evaluating the state of the power module as fault; when all the components of a down converter are normal, the state of the down converter can be evaluated as normal, and when the components with reduced capability exist in a down converter, the downconverter device state may be evaluated as a reduced capability, when a faulty component is present in a downconverter, the status of the down converter equipment can be evaluated as fault, when the status of the down converter equipment in the resource pool is normal, such a device state can be evaluated as normal, when there is a reduced capability of the down converter device in the resource pool, the state of the equipment can be evaluated as hidden danger, when the down converter equipment in the resource pool has faults and the number of the remaining normal equipment can meet the requirement of the system capacity, the equipment state can be evaluated to be capacity reduction, and when the down converter equipment in the resource pool has a fault and the number of the remaining normal equipment cannot meet the system capacity requirement, the equipment state can be evaluated to be the fault; when all equipment level states in the channel subsystem are normal, the state of the channel subsystem can be evaluated to be normal, when the equipment level states in the channel subsystem are hidden dangers, the state of the channel subsystem can be evaluated to be hidden dangers, when the equipment level states in the channel subsystem are reduced, the state of the channel subsystem can be evaluated to be reduced, and when the equipment level states in the channel subsystem are faults, the state of the channel subsystem can be evaluated to be a fault; when all the subsystem states in the system are normal, the system state can be evaluated to be normal, when the subsystem states exist in the system and are hidden dangers, the system state can be evaluated to be hidden dangers, when the subsystem states exist in the system and are reduced in capacity, the system state can be evaluated to be reduced in capacity, and when the subsystem states exist in the system and are faults, the system state can be evaluated to be faults; finally obtaining the evaluation result of the system capacity state;
obtaining a system level capability state according to the evaluation result, mapping the system fault level by combining a mapping relation between the system level capability state and the system fault level, and displaying the evaluation result and related fault equipment information layer by layer as shown in fig. 5, 6 and 7 which are typical examples of the mapping relation between the system capability state and the system fault level
In conclusion, by means of the technical scheme, the remote sensing satellite ground receiving system can complete fault evaluation periodically, system management personnel can master the data receiving capacity of the remote sensing satellite ground receiving system according to an evaluation result, data receiving tasks are arranged reasonably, maintenance objects are selected in a key and ordered mode according to the influence level of fault equipment on the system capacity, in-station resources are fully utilized, and the equipment utilization rate is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. A fault evaluation method of a ground receiving system of a remote sensing satellite is characterized by comprising the following steps:
analyzing a remote sensing satellite ground receiving system to be evaluated to obtain equipment fault information recorded in the operation of the remote sensing satellite ground receiving system;
determining the capacity requirement of the ground receiving system of the remote sensing satellite according to the attribute characteristics of the remote sensing satellite received by the ground receiving system of the remote sensing satellite; according to the capacity requirement, determining the type and the quantity of system resources meeting the capacity requirement from a pre-configured ground receiving system index system;
carrying out service analysis on the ground receiving system of the remote sensing satellite, determining the system service logic of the ground receiving system of the remote sensing satellite, and establishing a system evaluation model according to the system service logic;
determining fault equipment data corresponding to the equipment fault information according to the equipment fault information, loading the fault equipment data to the system evaluation model, and analyzing the system capacity state corresponding to the fault equipment by using the evaluation logic of the system evaluation model;
evaluating the overall system capacity state of the ground receiving system of the remote sensing satellite according to the capacity requirement of the ground receiving system of the remote sensing satellite, the type and the quantity of system resources and the system capacity state corresponding to the fault equipment, and determining and mapping the overall fault level of the ground receiving system of the remote sensing satellite according to the overall system capacity state and through a preset fault level index; the ground receiving system index system is composed of the following indexes: system capability index, subsystem capability index, equipment capability index, component capability index, unit capability index; the system capacity index comprises system receiving capacity, system capacity requirement and system resource allocation;
the system evaluation model includes: evaluating a model structure, evaluating logic and model nodes; wherein the evaluation model structure is a tree structure evaluated layer by layer from bottom to top; the structure of the evaluation model is from the bottom layer to the top layer, and the derivation path of each layer is determined by the evaluation logic; the evaluation logic evaluates the capability state layer by layer according to the weighted value of the index by taking the index state of the corresponding related low-layer element as basic data; the model nodes are elements of various indexes to be evaluated, are divided into five levels of a system, a subsystem, equipment, a component and a unit, and comprise all the monitored equipment in the system;
performing service analysis on the remote sensing satellite ground receiving system, determining the system service logic of the remote sensing satellite ground receiving system, and establishing a system evaluation model according to the system service logic, wherein the method comprises the following steps:
taking a ground receiving system index system as a basis, and decomposing the ground receiving system into five levels of a system, a subsystem, equipment, a component and a unit from top to bottom according to a service logic level according to a service logic architecture of the ground receiving system of the remote sensing satellite, wherein the service logic relationship between the levels is that the upper level comprises the lower level;
establishing monitorable equipment in each level as an element of an index to be evaluated, and establishing a model node;
according to the upper and lower level containing relations among the levels, the evaluation logic establishes that the evaluation result of the capability fault level of the high-level model node depends on the fault state of the low-level model node; according to the characteristics of each level model node, establishing an evaluation logic which accords with the fault capability judgment of the level model, wherein the evaluation logic is to take the fault state of a low level model node to carry out union, intersection or union operation, and the operation result is the capability state corresponding to the high level model node;
forming an evaluation model structure from bottom to top from the bottom layer to the top layer in a reverse manner according to the upper and lower level service logic relations between the levels of each layer and the fault evaluation logic of the upper and lower level model nodes;
the fault level indicators include the following three levels: hidden danger, capacity reduction and failure exist; and the fault grade evaluation logic of the fault grade index is as follows: when fault equipment exists in a station but is not used for building a real-time ground receiving system, hidden danger exists in the system; when fault equipment exists in the station, the fault equipment is used for establishing a ground receiving system, but other normal equipment does not influence the normal satellite data receiving of the ground receiving system, the data receiving capacity of the system to the satellite is reduced; when fault equipment exists in the station, the fault equipment is used for building a ground receiving system, and other normal equipment cannot meet the receiving requirement of the ground receiving system, the system breaks down, and the system loses the data receiving capability of the satellite.
2. The method for evaluating a fault in a ground receiving system of a remote sensing satellite according to claim 1, further comprising: and after the integral fault level of the ground receiving system of the remote sensing satellite is determined and mapped, displaying the receiving capacity evaluation result of the system and the related fault equipment information in a visual form.
3. The method of claim 1, wherein the equipment failure information comprises equipment component failure information and equipment unit failure information.
4. A fault evaluation system of a ground receiving system of a remote sensing satellite is characterized by comprising:
the system comprises a fault information acquisition module, a fault information analysis module and a fault information analysis module, wherein the fault information acquisition module is used for analyzing a remote sensing satellite ground receiving system to be evaluated and acquiring equipment fault information recorded in the operation of the remote sensing satellite ground receiving system;
the capacity and resource analysis module is used for determining the capacity requirement of the ground receiving system of the remote sensing satellite according to the attribute characteristics of the remote sensing satellite received by the ground receiving system of the remote sensing satellite; according to the capacity requirement, determining the type and the quantity of system resources meeting the capacity requirement from a pre-configured ground receiving system index system;
the evaluation model establishing module is used for carrying out service analysis on the remote sensing satellite ground receiving system, determining the system service logic of the remote sensing satellite ground receiving system and establishing a system evaluation model according to the system service logic;
the capacity evaluation module is used for determining fault equipment data corresponding to the equipment fault information according to the equipment fault information, loading the fault equipment data to the system evaluation model, and analyzing the system capacity state corresponding to the fault equipment by using the evaluation logic of the system evaluation model;
the fault evaluation module is used for evaluating the overall system capacity state of the ground receiving system of the remote sensing satellite according to the capacity requirement of the ground receiving system of the remote sensing satellite, the type and the quantity of system resources and the system capacity state corresponding to the fault equipment, and determining and mapping the overall fault level of the ground receiving system of the remote sensing satellite according to the overall system capacity state and through a preset fault level index;
the system evaluation model includes: evaluating a model structure, evaluating logic and model nodes; wherein the content of the first and second substances,
the evaluation model structure is a tree-shaped structure which is evaluated layer by layer from bottom to top; the structure of the evaluation model is from the bottom layer to the top layer, and the derivation path of each layer is determined by the evaluation logic;
the evaluation logic evaluates the capability state layer by layer according to the weighted value of the index by taking the index state of the corresponding related low-layer element as basic data;
the model nodes are elements of various indexes to be evaluated, are divided into five levels of a system, a subsystem, equipment, a component and a unit, and comprise all the monitored equipment in the system;
the fault level indicators include the following three levels: hidden danger, capacity reduction and failure exist; and the fault grade evaluation logic of the fault grade index is as follows:
when fault equipment exists in a station but is not used for building a real-time ground receiving system, hidden danger exists in the system;
when fault equipment exists in the station, the fault equipment is used for establishing a ground receiving system, but other normal equipment does not influence the normal satellite data receiving of the ground receiving system, the data receiving capacity of the system to the satellite is reduced;
when fault equipment exists in the station, the fault equipment is used for building a ground receiving system, and other normal equipment cannot meet the receiving requirement of the ground receiving system, the system breaks down, and the system loses the data receiving capability of the satellite.
5. The system for failure assessment of a ground receiving system for remote sensing satellites according to claim 4, further comprising: and the fault display module is used for displaying the system receiving capacity evaluation result and related fault equipment information in a visual form after determining and mapping the integral fault level of the ground receiving system of the remote sensing satellite.
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| CN104460650A (en) * | 2014-10-24 | 2015-03-25 | 中国科学院遥感与数字地球研究所 | Fault diagnosis device and method for remote sensing satellite receiving system |
| CN106301522A (en) * | 2016-08-20 | 2017-01-04 | 航天恒星科技有限公司 | The Visual method of fault diagnosis of Remote Sensing Ground Station data receiver task and system |
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