CN102542002A - Satellite telemetry data treatment system and realization method thereof - Google Patents
Satellite telemetry data treatment system and realization method thereof Download PDFInfo
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Abstract
The invention discloses a satellite telemetry data treatment system and a realization method of the system, which solves the problems of telemetry data treatment, such as universality, extensibility and cross-platform. The system comprises a log module, a pointer container module, a memory management module, a basic data management module, a configuration information management module, an index table management module, a data pretreatment module, a treatment method module, a data analysis module and a data initialization and management module. The method comprises preparing configuration file and basic data, and creating a frame index table or a packet index table by use of a dynamic array, i.e. pointer container; receiving telemetry data, and carrying out effective judgment and data integration; carrying out parameter treatment, and treating the parameter result according to a manner defined by a customer; and stopping until all of the telemetry data is treated.
Description
Technical field
The invention belongs to the satellite telemetry field, relate to a kind of satellite telemetering data disposal system and its implementation.
Background technology
The main task of Telemetry Processing System is to accomplish the processing of the various telemetries of different model satellite, operations such as interpretation, storage and broadcasting, with independently, cross-platform Software tool packet form exists.
In the electric performance test stage of spacecraft, telemetry parameter is a main path of keeping watch on the spacecraft component duty, so the processing of telemetry is one of Core Feature of whole star ground checkout equipment.Yet; Mainly there is following some deficiency in the Telemetry Processing System that is adopted at present: (1) is because the various needs of each model satellite structure and function; The form of the telemetry that they pass down is not quite similar, and the quantity of data down transmission passage is also inequality, and the versatility of original data handling system is poor; Basically each kind satellite all has the deal with data system of oneself; To frame and two kinds of data layouts of bag that present model satellite extensively adopts, original data handling system is compatibility well, some difference always on code of the data handling system between model and the model; So very be unfavorable for the upgrading and the maintenance of code, be unfavorable for the productization development of software; (2) because the telemetry parameter of each model is numerous, and processing formula is ever-changing, and for new processing formula, original data handling system can not on-the-fly modify and increase, must accomplish through revising code, extendability is relatively poor; (3) original Telemetry Processing System runs on unix platform, and professional platform independence is poor, belongs to the proprietary subsystem of main test computer (MTP) in the integration test turn-key system, is difficult to used by the application software of other operating system platform; (4) because software users has different needs to the Telemetering Data Processing result; The hope result that has can be broadcasted in real time; It is medium that the hope result that has can be kept at file; And the not support function expansion of original Telemetry Processing System can only be carried out data processing according to intended function, and the user can not change and expand voluntarily.
Summary of the invention
The technical matters that the present invention solves is: overcome the deficiency of prior art, a kind of satellite telemetering data disposal system and its implementation are provided, solved the problems such as universalization, extendability and professional platform independence of Telemetering Data Processing.
Technical solution of the present invention is: a kind of satellite telemetering data disposal system comprises log pattern, pointer container module, memory management module, basic data management module, configuration information management module, concordance list administration module, data preprocessing module, disposal route module, data resolution module and data initialization and administration module; Wherein: log pattern supplies the crucial Debugging message of other module records system for other module provides the interface function of log record; The pointer container module provides the dynamic memory of information for other module; Memory management module pair encapsulates and manages with the related function of internal memory operation, is used for writing down the number of times of Memory Allocation and the number of times of release, and provides interface to list the quantity that internal memory is revealed; The basic data management module is used for reading, storing and manage the basic data information of all telemetry parameters, and external interface is provided, and supplies concordance list administration module, disposal route module and data initialization and administration module to call; The configuration information management module is used for reading and manage the data message in the configuration file of different model, supplies concordance list module, pre-processing module, data resolution module and data initialization and administration module to call, and makes Telemetry Processing System reach versatility; The concordance list that the concordance list administration module is used for creating and management parameters is handled; And interface is provided, and supply data resolution module and data initialization and administration module to call, make and perhaps one wrap source code when to be resolved when a frame; System can find out the source code that comprises which parameter in this raw data; System extracts source code according to the Back ground Information of the parameter in the concordance list then, calls corresponding disposal methods parameter; Data preprocessing module is according to the profile information of model; The form of frame telemetry and bag telemetry is integrated; Through pre-service, make the form of bag telemetry and the form of frame telemetry have similarity, and provide interface to supply data resolution module to call; Disposal route module offer curves is handled, tabulation is handled, common mathematical function is handled, special purpose function is handled, expression formula is handled, same source calibration is handled and the different source calibration disposal route; The confession data resolution module calls, and accomplishes the processing of telemetry parameter from the source code to the engineering value; Data resolution module is responsible for the management of whole flow chart of data processing; At first integrate raw data according to data preprocessing module; Secondly obtain index through the concordance list administration module; Through basic data management module particular location getparms and disposal route information, obtain source code and calling processing method module parses source code data at last then; Data initialization and administration module are used for other module is carried out initialization and management; Invoke memory administration module allocation space at first; Next calls configuration information management module and basic data management module loading configuration information and basic data; Call the concordance list administration module then and create concordance list, and provide management interface to supply outside other software transfer, make it be provided with and to manage the conventional data processing software package.
A kind of satellite telemetry data reduction processing method may further comprise the steps:
The first step: prepare configuration file, the wherein characteristic information of definition frame form or packet format telemetry;
Second step: prepare basic data, wherein define title, code name, pattern, position, the processing mode information of telemetry parameter;
The 3rd step: reading the Back ground Information in second step, according to Back ground Information, is that the pointer container is created the frame index table or wrapped concordance list with Dynamic Array;
The 4th step: receive telemetry;
The 5th step: read the configuration file in the first step,, the form of the 4th frame telemetry that receive of step and bag telemetry is carried out validity judgement and data integration according to configuration file; For the bag remote measurement is input with the CADU of bag remote measurement then, after a series of buffer memorys of process are handled with splicing, is output as a series of source bag data, and wraps the form buffer memory of a corresponding section with each source; To put in order the frame remote measurement as a section buffer memory for the frame remote measurement;
The 6th goes on foot: the concordance list that the hop count group in the 5th step was generated according to the 3rd step carries out the parameter processing, and the parameter result is handled according to user-defined mode;
The 7th step:, repeated for the 3rd step to the 6th step, until handling all telemetries if basic data information has change; If basic data information is change not, repeated for the 4th step to the 6th step, until handling all telemetries.
The present invention's beneficial effect compared with prior art is:
(1) the present invention introduces the basic data information management module; Back ground Information form to parameter is optimized; Employing increases income, the Back ground Information of cross-platform sqlite toy data base file storage parameter; Basic data information management module unified management and safeguard the Back ground Information of these parameters, and offer other module and use.Safeguard through the basic data management module mode of basic data library file can to make very loaded down with trivial details Back ground Information obtain the management of standard, error rate greatly reduces, and security greatly improves;
(2) the invention provides the pre-processing module of data,, the form of frame telemetry and bag telemetry is integrated according to the configuration information of model.For the bag remote measurement, this module is input with the CADU of bag remote measurement, through after a series of processing, is output as a series of source bag data, and with the stored in form of section (segment) array; For the frame remote measurement, this module will be put in order frame and also stored as a section (segment).Through transforming like this, the form of bag telemetry and the form of frame telemetry just have similarity preferably, for the universalization that realizes data processing lays the first stone;
(3) the invention provides the expression parsing method of telemetry parameter; The user can be in the basic data information processing method table of parameter from the disposal route expression formula of this parameter of edlin; The grammer of expression formula is close with the C language; So just realized the dynamic expansion of parameter processing method, made this Telemetering Data Processing software package can handle the telemetry parameter that much has the new model disposal route, and needn't revise code again;
(4) the invention provides the external interface that encapsulation is good, be simple and easy to usefulness, supply other application software to call.The expanded function of interface is provided through the mode of function pointer simultaneously, can have allowed the expansion of external function, satisfied the function expansion requirement of external user Telemetering Data Processing to this software package self function;
(5) selection standard C language of the present invention is encoded, and used external libraries all is the cross-platform storehouse of increasing income (Expat and Sqlite), and the compilation tool of being selected for use is cross-platform Cmake instrument, has eliminated the dependence of this software package to operating system platform.
Description of drawings
Fig. 1 is the composition frame chart of satellite telemetering data disposal system of the present invention;
Fig. 2 is the concordance list generating principle figure in the satellite telemetering data disposal system of the present invention;
Fig. 3 is directed against the Telemetering Data Processing process flow diagram for satellite telemetering data disposal system of the present invention.
Embodiment
As shown in Figure 1, the general Telemetry Processing System of the present invention comprises log pattern 1, pointer container module 2; Memory management module 3, basic data management module 4, configuration information management module 5; Concordance list administration module 6; Data preprocessing module 7, disposal route module 8, data resolution module 9 and data initialization and administration module 10.
Basic data management module 4 adopts standard C language exploitation, the basic data information that is used for reading, storing and manage telemetry parameter.After receiving the user initialization order, this module invokes memory management module 3 is distributed the dynamic memory space, and the basic data information that from basic database, loads all parameters is to internal memory.After initialization was accomplished, the user can be provided with the various attributes of arbitrary parameter in the internal memory, satisfies the demand of human intervention Back ground Information, also can obtain the Back ground Information of arbitrary parameter through order.After the release command of receiving the user, this module discharges the storage space that initialization distributes.
Configuration information management module 5 adopts the standard C language exploitation; Be used for reading and the administration configuration file in data message; Adopt expat to increase income to wrap in this module the configuration file of XML form is resolved, and adopt the mode of Hash table to store and search, improved efficient.After receiving the user initialization order, these module invokes memory management module 3 memory allocated spaces load all configuration informations to internal memory from configuration file, supply the user to use.After the release command of receiving the user, this module discharges the storage space that initialization distributes.
The concordance list that concordance list administration module 6 is used for creating and management parameters is handled makes and wraps source code when to be resolved when a frame or that system can find out apace and comprise the parameter which need be resolved in this raw data.After this module is received the user initialization order, invoke memory administration module 3 allocation index table spaces, the storage space of traversal basic data management module 4; The concordance list that uses when setting up the telemetry parameter decoding according to the positional information of each parameter; For the frame remote measurement, this is shown with frame count as index, for the bag remote measurement; This table is to wrap sequence number as index, and is as shown in Figure 2.After initialization is accomplished, when receive the user obtain the concordance list order after, the frame count that this module is transmitted according to the user or wrap sequence number returns to the corresponding concordance list of user.After the release command of receiving the user, this module discharges the storage space that initialization distributes.
Data preprocessing module 7 is used for according to the profile information of model, and the form of frame telemetry and bag telemetry is integrated.After the pre-service order of receiving the user, for the bag telemetry format, this module is input with the CADU of bag remote measurement, through after a series of processing, is output as a series of source bag data, and with the stored in form of segment; For the frame telemetry format, this module will be put in order frame also as a segment storage, wrap the form of telemetry and the form of frame telemetry like this and just have similarity preferably, supply data resolution module 9 to call.
Curve administration module 81 is that the required calibration curve information of curve processing method in the basic database is managed, and this module can adopt the mode of piecewise linearity difference to obtain engineering value according to parameter source code value.
List management module 82 is that the required list information of tabulation disposal route in the basic database is managed, and this module can adopt the mode of tabling look-up to obtain engineering value according to parameter source code value.
Universal function module 83 is in handling procedure, to have write the general processing function (handling such as polynomial expression) of some each models in advance, and numbering is provided.These functions as input, are handled out engineering value through predefined processing mode with the source code of telemetry parameter and some relevant informations (such as related coefficient).This module concentrates on all general purpose function disposal routes in the function pointer array; Can number obtain handling function pointer according to the function processing formula in the telemetry parameter base data table; The remote measurement source code of incorporating parametric and the related coefficient in the base data table then, information calculations such as correlation parameter go out the engineering value of parameter.
Expression formula processing module 84 is used for the data processing method of flexible expansion telemetry parameter, and it directly carries out morphology and grammatical analysis to the processing expression formula of telemetry parameter, and the generative grammar tree makes an explanation when operation and carries out the engineering value that draws parameter.Satisfy the function of disposal route module dynamic expansion.
Calibration module 85 is used for assisting the calibration information of management parameters, and the system that makes can calibrate the result of parameter according to these calibration informations.
Data initialization and administration module 10 are used for other module is carried out initialization and management.After receiving the user initialization order; This module is at first wanted invoke memory administration module 3 allocation space; Call configuration information management module 5 load configuration information then, call basic data management module 4 and load basic data information, call concordance list module 6 and create concordance list.After initialization is accomplished; The management interfaces such as calibration marker, compulsory mode conversion that this module provides heavy loading parameters table, a certain parameter engineering value is set, obtain a certain parameter engineering value, be provided with a certain parameter supply other software that calls this general Telemetry Processing System software package bag to use, and make them be provided with and to manage this software package.After the release command of receiving the user, this module discharges the storage space that initialization distributes.
Realize the method for satellite telemetering data disposal system, step is following:
(1) prepares configuration file (.xml form), the wherein characteristic information of definition frame form or packet format telemetry;
(2) prepare basic data (.db form), wherein define the information such as title, code name, pattern, position, processing mode of telemetry parameter;
(3) Back ground Information in the read step (2) according to Back ground Information, is created the frame index table or is wrapped concordance list with Dynamic Array (pointer container);
(4) receive telemetry;
(5) configuration information in the read step (1), according to configuration information, the frame telemetry that step (4) is received and the form of bag telemetry carry out validity and judge and data integration.For the bag remote measurement, this system is input with the CADU of bag remote measurement, after a series of buffer memorys of process are handled with splicing, is output as a series of source bag data, and wraps the form buffer memory of a corresponding section (segment) with each source; For the frame remote measurement, this system will put in order the frame remote measurement as a section (segment) buffer memory.
(6) with section (segment) array in the step (5), the concordance list that generates according to step (3) carries out the parameter processing, and the parameter result is handled according to user-defined mode;
(7) if basic data information has change, repeated execution of steps (3) is to step (6), until handling all telemetries; If basic data information is change not, repeated execution of steps (4) is to step (6), until handling all telemetries;
At present, the present invention obtains applications well in a plurality of ground test softwares of a plurality of platforms of a plurality of models, realized the versatility of Telemetering Data Processing, and resolving for the telemetry on ground provides enough supports.
Claims (3)
1. a satellite telemetering data disposal system is characterized in that: comprise log pattern, pointer container module, memory management module, basic data management module, configuration information management module, concordance list administration module, data preprocessing module, disposal route module, data resolution module and data initialization and administration module; Wherein: log pattern supplies the crucial Debugging message of other module records system for other module provides the interface function of log record; The pointer container module provides the dynamic memory of information for other module; Memory management module pair encapsulates and manages with the related function of internal memory operation, is used for writing down the number of times of Memory Allocation and the number of times of release, and provides interface to list the quantity that internal memory is revealed; The basic data management module is used for reading, storing and manage the basic data information of all telemetry parameters, and external interface is provided, and supplies concordance list administration module, disposal route module and data initialization and administration module to call; The configuration information management module is used for reading and manage the data message in the configuration file of different model, supplies concordance list module, pre-processing module, data resolution module and data initialization and administration module to call, and makes Telemetry Processing System reach versatility; The concordance list that the concordance list administration module is used for creating and management parameters is handled; And interface is provided, and supply data resolution module and data initialization and administration module to call, make and perhaps one wrap source code when to be resolved when a frame; System can find out the source code that comprises which parameter in this raw data; System extracts source code according to the Back ground Information of the parameter in the concordance list then, calls corresponding disposal methods parameter; Data preprocessing module is according to the profile information of model; The form of frame telemetry and bag telemetry is integrated; Through pre-service, make the form of bag telemetry and the form of frame telemetry have similarity, and provide interface to supply data resolution module to call; Disposal route module offer curves is handled, tabulation is handled, common mathematical function is handled, special purpose function is handled, expression formula is handled, same source calibration is handled and the different source calibration disposal route; The confession data resolution module calls, and accomplishes the processing of telemetry parameter from the source code to the engineering value; Data resolution module is responsible for the management of whole flow chart of data processing; At first integrate raw data according to data preprocessing module; Secondly obtain index through the concordance list administration module; Through basic data management module particular location getparms and disposal route information, obtain source code and calling processing method module parses source code data at last then; Data initialization and administration module are used for other module is carried out initialization and management; Invoke memory administration module allocation space at first; Next calls configuration information management module and basic data management module loading configuration information and basic data; Call the concordance list administration module then and create concordance list, and provide management interface to supply outside other software transfer, make it be provided with and to manage the conventional data processing software package.
2. a kind of satellite telemetering data disposal system as claimed in claim 1; It is characterized in that: described disposal route module is used for the remote measurement source code is handled, and comprises curve administration module, list management module, universal function module, expression formula processing module and calibration module; Wherein:
The curve administration module is managed the required calibration curve information of curve processing method in the basic database, according to parameter source code value, adopts the mode of piecewise linearity difference to obtain engineering value;
The list management module is managed the required list information of tabulation disposal route in the basic database, according to parameter source code value, adopts the mode of tabling look-up to obtain engineering value;
The universal function module is write the general processing function of each model in advance in handling procedure, and numbering is provided, and this function as input, is handled out engineering value through predefined processing mode with the source code of telemetry parameter and relevant information; All general purpose function disposal routes are concentrated in the function pointer array; Number obtain handling function pointer according to the function processing formula in the telemetry parameter base data table; The remote measurement source code of incorporating parametric and the related coefficient in the base data table then, the correlation parameter information calculations goes out the engineering value of parameter;
The expression formula processing module is used for expanding the data processing method of telemetry parameter, directly the processing expression formula of telemetry parameter is carried out morphology and grammatical analysis, and the generative grammar tree makes an explanation when operation and carries out the engineering value that draws parameter;
Calibration module is used for assisting the calibration information of management parameters, and the system that makes can calibrate the result of parameter according to these calibration informations.
3. satellite telemetry data reduction processing method may further comprise the steps:
The first step: prepare configuration file, the wherein characteristic information of definition frame form or packet format telemetry;
Second step: prepare basic data, wherein define title, code name, pattern, position, the processing mode information of telemetry parameter;
The 3rd step: reading the Back ground Information in second step, according to Back ground Information, is that the pointer container is created the frame index table or wrapped concordance list with Dynamic Array;
The 4th step: receive telemetry;
The 5th step: read the configuration file in the first step,, the form of the 4th frame telemetry that receive of step and bag telemetry is carried out validity judgement and data integration according to configuration file; For the bag remote measurement is input with the CADU of bag remote measurement then, after a series of buffer memorys of process are handled with splicing, is output as a series of source bag data, and wraps the form buffer memory of a corresponding section with each source; To put in order the frame remote measurement as a section buffer memory for the frame remote measurement;
The 6th goes on foot: the concordance list that the hop count group in the 5th step was generated according to the 3rd step carries out the parameter processing, and the parameter result is handled according to user-defined mode;
The 7th step:, repeated for the 3rd step to the 6th step, until handling all telemetries if basic data information has change; If basic data information is change not, repeated for the 4th step to the 6th step, until handling all telemetries.
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