CN105137214B - A kind of satellite bus data analysis system - Google Patents
A kind of satellite bus data analysis system Download PDFInfo
- Publication number
- CN105137214B CN105137214B CN201510350429.8A CN201510350429A CN105137214B CN 105137214 B CN105137214 B CN 105137214B CN 201510350429 A CN201510350429 A CN 201510350429A CN 105137214 B CN105137214 B CN 105137214B
- Authority
- CN
- China
- Prior art keywords
- bus data
- data
- frame
- bus
- satellite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
A kind of satellite bus data analysis system, including Data acquisition and storage module, bus data analysis module；Data acquisition and storage module is connected by bus with satellite electron system and data acquisition bus data, send bus data frame to bus data analysis module after obtaining bus data frame；Bus data analysis module, it is stored after receiving the bus data frame that Data acquisition and storage module is sent, row format of going forward side by side judges, then by respectively comparing bus data and section shape parameter, equivalent variation shape parameter, saltus step shape parameter, interpretation Current bus data.Compared with prior art, the present invention can all kinds of intermediate data information of real-time storage, search, while the bus data collected analyzed in real time according to parameter model convenient for the later stage, can more accurately, timely position location satellite electronic system malfunction reason.
Description
Technical field
The present invention relates to the ground test of satellite system function and verification field, particularly a kind of satellite bus data analyses
System.
Background technology
Satellite comprehensive testing refers to the detection of the property indices to satellite electron system, and its main purpose is to pass through survey
Examination finds all kinds of problems in satellite electron system, and takes measures in time for the problem of discovery, it is ensured that the quality of Satellite Product.
As requirement of the user to satellite function is continuously increased, the complexity of satellite electron system also constantly increases, to the synthesis of satellite
Testing level also proposed higher requirement.
At present, satellite comprehensive testing be mainly the method for the telemetry parameter under all kinds of operating modes that are passed down by analyzing satellite come
Judge various functions, the correctness of performance indicator of satellite system.The satellite telemetry parameters that ground is reached due under cannot be complete
Cover all kinds of intermediate data in satellite system operational process, when causing the system to break down, can not promptly and accurately position failure
The reason for.Therefore, satellite comprehensive testing needs a kind of satellite bus data test analysis system to come to inside satellite real-time, interactive
Data be monitored, to find some deep-seated problems of satellite system.
The content of the invention
Present invention solves the technical problem that it is：One kind has been overcome the deficiencies of the prior art and provide to be directly accessed by bus
Satellite electron system come realize interior data is gathered in real time with analysis satellite bus data analysis system.
The present invention technical solution be：A kind of satellite bus data analysis system, including Data acquisition and storage mould
Block, bus data analysis module, wherein
Data acquisition and storage module is connected with each subsystem of satellite electron system by bus and gathers each point
System is sent to the bus data of satellite bus, and bus data is stored, and is then sent bus data to bus data and is analyzed
Module；
Bus data analysis module, including bus data format analysis unit, bus data interpretation unit；Bus data lattice
Formula analytic unit from the external transport protocol for obtaining Current bus data, receives the bus that Data acquisition and storage module is sent
After data, bus data is compared using the corresponding data frame format of the transport protocol of Current bus data, if bus data is not
Meet the corresponding data frame format of transport protocol of Current bus data, then export the analysis of Current bus data format and do not pass through letter
Number, the bus data for continuing to the transmission of Data acquisition and storage module is compared, if bus data meets Current bus
The corresponding data frame format of transport protocol of data then exports the analysis of Current bus data format by signal, then will be current
Bus data is sent to bus data interpretation unit；
Bus data interpretation unit judges its correspondence according to the subsystem of the corresponding satellite electron system of Current bus data
Data model, Current bus data are divided according to the transport protocol of Current bus data corresponding data frame length,
If Current bus data are section shape parameter, the data in the bus data frame are taken with what is obtained from outside
Data in value scope and former frame bus data frame are compared, if the data in the bus data frame are located at value range
It is interior and with the data difference in former frame bus data frame in allowed band, then export Current bus data frame interpretation and pass through letter
Number, it otherwise exports Current bus data frame interpretation and does not pass through signal；
If Current bus data are equivalent variation shape parameter, and the data in Current bus data frame and former frame are total
Data in line data frame are compared, if comparison result meets the corresponding equivalent change of the Current bus data obtained from outside
Change shape parameter, then export the interpretation of Current bus data frame by signal, otherwise export Current bus data frame interpretation and do not pass through letter
Number；The equivalent variation shape parameter includes being incremented by parameter model, decrement parameter model and loop parameter model, wherein, it is incremented by
Parameter model is that the data in arbitrary bus data frame are always bigger than the data in adjacent previous bus data frame, decrement parameter
Model is that the data in arbitrary bus data frame are always smaller than the data in adjacent previous bus data frame, datacycle type ginseng
Exponential model is the data cyclically-varying in bus data frame；
If Current bus data are saltus step shape parameter, by the data in Current bus data frame and former frame number of buses
It is compared according to the variable quantity of the data in frame with the corresponding saltus step scope of Current bus data obtained from outside, if the change
Change amount is located at the corresponding saltus step scope of Current bus data frame, then exports the interpretation of Current bus data frame by signal, otherwise defeated
Go out Current bus data frame interpretation and do not pass through signal；
The allowed band is no more than 10%.
The transport protocol of the bus data includes 1553b, CAN, RS485.
The frame originating point information of the bus data frame includes the transport protocol, data frame length, data frame school of bus data
Test and.
The present invention compared with prior art the advantages of be：
(1) satellite bus data analysis system of the present invention, overcomes traditional satellite test system or method was being tested
Lack the defects of being analyzed in real time satellite electron internal system data in journey, satellite electron system is directly accessed by bus, it is real
Show and interior data is gathered and analyzed in real time；
(2) satellite bus data analysis system of the present invention compared with prior art, all kinds of intermediate data information of real-time storage,
It searches to position failure cause convenient for the later stage；
(3) satellite bus data analysis system of the present invention carries out the bus data of satellite electron internal system real-time, interactive
Monitoring, can in time, quickly find the satellite electron system failure or problem；
(4) it is uncurrent scarce to overcome traditional satellite special test system for satellite bus data analysis system of the present invention
It falls into, data protocol that can be according to satellite Integrated Electronic System, data format flexibly obtain satellite bus data analysis from the external world
The parameters of system meet different model test assignment demand.
Description of the drawings
Fig. 1 is a kind of satellite bus data analysis system of the present invention and on-board equipment interface diagram；
Fig. 2 is a kind of satellite bus data analysis system work flow diagram of the present invention.
Specific embodiment
The present invention proposes a kind of satellite bus data analysis system, and the level one data for being directly accessed satellite electron system is total
Line, then according to the bus protocol of satellite, real time parsing goes out the Various types of data of satellite and according to the parameter model set in advance, right
The data that parse carry out real-time interpretation analysis, with note abnormalities and and alarm, wherein, the level one data of satellite electron system
Bus message includes the Various types of data information such as whole star observing and controlling, the energy, control, thermal control, propulsion, load, the friendship of data message per second
Mutually amount is about 100KByte.The present invention will be further described below in conjunction with the accompanying drawings, satellite bus data analysis system as shown in Figure 1
System is attached with satellite electron system by the level-one bus of satellite system, and satellite bus data analysis system is in the course of work
In, satellite electron internal system interaction data is acquired in real time, interpretation, analysis.
(1) satellite bus data analysis system master-plan
Present system is made of Data acquisition and storage module, data analysis module two parts, wherein, data acquisition module
Block is mainly responsible for all message stream datas acquisition of acquisition satellite bus, and the real-time storage of the data to collecting.Data point
Analysis module is mainly responsible for the data collected is analyzed in real time, wherein mainly including bus data format analysis unit, always
Line data interpretation unit.
(2) bus data format analysis unit
Bus data analysis system during the work time, first carries out all data of interaction on each cycle bus real
When gather, then analyzed according to data pattern and data protocol (1553B bus datas agreement), if data format and association
View does not meet currently used data pattern and data protocol, then alarms, wherein, the interaction of satellite system internal data is with message
It is carried out for unit, in the data in the message containing each subaddress information for far putting terminal, data sending mode and message
Hold, each far put terminal and possess 31 subaddressings, data sending mode is divided into BC-RT patterns and RT-BC patterns.For different
Satellite, when using satellite bus analysis system, which can be pre-set according to the application of specific satellite by man-machine interface
Each far put the information such as message mode, the messaging protocol of terminal subaddressing.It is being run in satellite bus data analysis system
In the process, the information such as data format, the data protocol in bus are analyzed in real time, if there is exception, is then alarmed.
(3) bus data interpretation unit
Bus data analysis system can in real time be monitored the data in bus, which can be set simultaneously is not more than
100 parameters, the range of normal value of each bus parameter can be set by man-machine interface, system in the process of running, system root
According to the parameter area of setting, the data gathered in real time are compared, if beyond the scope that system is set, are alarmed；
Bus data interpretation unit is stored after receiving the bus data frame that Data acquisition and storage module is sent, when depositing
When storing up data more than three frames, data analysis is carried out, according to satellite data feature and application demand, satellite bus data analysis system
100 can be set simultaneously by prosecution parameter, and each parameter can arbitrarily select model I progress, and analysis (can be according to current in real time
The corresponding parameter type of bus data makes choice), 5 class models are as follows：
A) parameter interval model：Such parameter (data in bus data frame) be respectively positioned on value range (from the external world obtain,
Arbitrarily determined by human-computer interaction interface) in and former and later two arbitrary adjacent bus data frames in data be not much different in
10%.
B) increment type parameter model：For in satellite data analytic process, such parameter carries out data change according to certain rules
Change, in the data of acquisition, XN、XN+1、XN+2.If XN+1-XN＞ 0 and XN+2-XN+1＞ 0 then, the data fit equivalence increment type
Model if do not met, is alarmed, wherein, N is positive integer.
C) decrescendo parameter model：Such parameter carries out data variation according to certain rules, in the data of acquisition, XN、
XN+1、XN+2.If XN+1-XN＜ 0 and XN+2-XN+1Then, which, if do not met, reports ＜ 0
It is alert.
D) datacycle shape parameter model：Such parameter carries out data variation according to certain rules, in the data of acquisition,
XN、XN+1、XN+2.If XN+1-XN＞ N and XN+2-XN+1(different satellites, the numerical value of N is different, and N can be set by man-machine interface by ＞ N
Put) data increase to zero (or initial value) after 0xFF and count again then, then and the data are for cyclical patterns and by if not
Meet, then alarm.
E) abnormal saltus step model：The model mainly for some telemetries in the system failure exception saltus step and formulate
's；In the data of acquisition, XN、XN+1、XN+2.If XN+1-XN＞ N and XN+2-XN+1(different satellites, the numerical value of N, M are or not ＜ M
Together, N can be set by man-machine interface), then the data are normal, if do not met, alarm.
In use, user can be according in specific satellite the characteristics of parameter, to every for satellite bus data analysis system
One parameter selection data model and relevant parameter (such as N, M).Satellite bus data analysis system can in real time to choosing ginseng
Number carries out model analysis.
(4) satellite bus analysis system workflow
The operation principle flow chart of satellite bus data analysis system as shown in Fig. 2, present system first by man-machine
Interface obtains the corresponding parameter model of Current bus data from outside, is using by each point of bus and satellite electron system
The connected Data acquisition and storage module data acquisition bus data of system, store bus data, and bus data are sent to total
Line data analysis module is analyzed.
Then, the bus data format analysis unit in bus data analysis module obtains Current bus data from outside
Transport protocol after receiving the bus data that Data acquisition and storage module is sent, uses the transport protocol pair of Current bus data
The data frame format answered compares bus data, if bus data does not meet the corresponding data of transport protocol of Current bus data
Frame format then exports the analysis of Current bus data format not by signal and alarms, and continues to Data acquisition and storage mould
The bus data that block is sent is compared, if bus data meets the corresponding data frame lattice of transport protocol of Current bus data
Formula then exports the analysis of Current bus data format by signal, then send Current bus data to bus data interpretation unit
Carry out interpretation.
Finally, the bus data interpretation unit in bus data analysis module judges that its is corresponding according to Current bus data
Data model divides Current bus data according to the corresponding data frame length of the transport protocol of Current bus data：
If Current bus data are parameter interval model, obtained by the data in the bus data frame and from outside
Data in value range and former frame bus data frame are compared, if the data in the bus data frame are located at value model
The difference of data is not more than 10% in enclosing and in former frame bus data frame, then exports Current bus data frame and judge through signal,
Otherwise output Current bus data frame interpretation by signal and is not alarmed；
If Current bus is equivalent change type parameter model, obtained by the data in bus data frame and from the external world
Data in equivalent change type parameter model and former frame bus data frame are compared, if the number of buses in bus data frame
According to equivalent change type parameter model is met, then the interpretation of Current bus data frame is exported by signal, otherwise exports Current bus number
It by signal and does not alarm according to frame interpretation；The equivalent change type parameter model includes being incremented by parameter model, decrement parameter mould
Type and loop parameter model, wherein, it is always previous more total than adjacent for the data in arbitrary bus data frame to be incremented by parameter model
Data in line data frame are big, and decrement parameter model is the data in arbitrary bus data frame always than adjacent previous number of buses
Small according to the data in frame, datacycle shape parameter model is the data cyclically-varying in bus data frame, for example, being obtained from the external world
The variable quantity of the decrement parameter model taken is 1, and the data in the first six data frame are 1,3,5,9,11,13, if the 7th frame is
15, then this group of data fit decrement parameter model, if the 7th frame be 16, if this group of data do not meet decrement parameter model；Before
Data in six data frames are 1,3,5,1,3,5, if the 7th frame is 1, this group of data fit circular form parameter model, such as
The 7th frame of fruit is 3, then this group of data do not meet circular form parameter model；
If Current bus is abnormal saltus step model, obtained from outside and using in the corresponding saltus step of Current bus data
Limit, saltus step lower limit, then by the variable quantity of the data in the data jump in bus data frame to its former frame bus data frame
It is compared with from the external corresponding saltus step upper limit of Current bus data obtained, saltus step lower limit, works as if the variable quantity is less than
The corresponding saltus step upper limit of preceding bus data frame and more than the corresponding saltus step lower limit of Current bus data frame, then export Current bus number
According to frame interpretation by signal, otherwise export the interpretation of Current bus data frame and by signal and do not alarm；For example, it is obtained from the external world different
The saltus step upper limit of normal saltus step model is 10, and the saltus step upper limit is 1, and the data in the first six data frame are 1,3,6,10,15,21, such as
The 7th frame of fruit is 28, then this group of data fit exception saltus step model, if the 7th frame be 21 or 66, if this group of data do not meet it is different
Normal saltus step model；The transport protocol of bus data includes 1553b, CAN, RS485, and the frame originating point information of bus data frame includes bus
The transport protocols of data, data frame length, data frame check and.
The content not being described in detail in description of the invention belongs to the known technology of those skilled in the art.
Claims (4)
1. a kind of satellite bus data analysis system, it is characterised in that analyzed including Data acquisition and storage module, bus data
Module, wherein
Data acquisition and storage module is connected with each subsystem of satellite electron system by bus and gathers each subsystem
It send to the bus data of satellite bus, bus data is stored, then send bus data to bus data analysis module；
Bus data analysis module, including bus data format analysis unit, bus data interpretation unit；Bus data form point
Unit is analysed, from the external transport protocol for obtaining Current bus data, receives the bus data that Data acquisition and storage module is sent
Afterwards, bus data is compared using the corresponding data frame format of transport protocol of Current bus data, if bus data is not met
The corresponding data frame format of transport protocol of Current bus data then exports the analysis of Current bus data format not by signal,
The bus data for continuing to the transmission of Data acquisition and storage module is compared, if bus data meets Current bus data
The corresponding data frame format of transport protocol, then the analysis of Current bus data format is exported by signal, then by Current bus
Data are sent to bus data interpretation unit；
Bus data interpretation unit judges its corresponding number according to the subsystem of the corresponding satellite electron system of Current bus data
According to model, Current bus data are divided according to the transport protocol of Current bus data corresponding data frame length,
If Current bus data are section shape parameter, by the data in the bus data frame and the value model from outside acquisition
Enclose and former frame bus data frame in data compared, if the data in the bus data frame be located in value range and
With the data difference in former frame bus data frame in allowed band, then the interpretation of Current bus data frame is exported by signal, it is no
It then exports Current bus data frame interpretation and does not pass through signal；
If Current bus data are equivalent variation shape parameter, by the data in Current bus data frame and former frame number of buses
It is compared according to the data in frame, if comparison result meets the corresponding equivalent change type of the Current bus data obtained from outside
Parameter then exports the interpretation of Current bus data frame by signal, otherwise exports Current bus data frame interpretation and do not pass through signal；Institute
The equivalent variation shape parameter stated includes being incremented by parameter model, decrement parameter model and loop parameter model, wherein, it is incremented by parameter mould
Type is that the data in arbitrary bus data frame are always bigger than the data in adjacent previous bus data frame, and decrement parameter model is
Data in arbitrary bus data frame are always smaller than the data in adjacent previous bus data frame, datacycle shape parameter model
For the data cyclically-varying in bus data frame；
If Current bus data are saltus step shape parameter, by the data in Current bus data frame and former frame bus data frame
In data variable quantity with from outside obtain the corresponding saltus step scope of Current bus data be compared, if the variable quantity
Positioned at the corresponding saltus step scope of Current bus data frame, then the interpretation of Current bus data frame is exported by signal, otherwise output is worked as
Preceding bus data frame interpretation does not pass through signal.
2. a kind of satellite bus data analysis system according to claim 1, it is characterised in that：The allowed band is
No more than 10%.
3. a kind of satellite bus data analysis system according to claim 1 or 2, it is characterised in that：The number of buses
According to transport protocol include 1553b, CAN or RS485.
4. a kind of satellite bus data analysis system according to claim 1 or 2, it is characterised in that：The number of buses
According to the frame originating point information including bus data of frame transport protocol, data frame length and data frame check and.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510350429.8A CN105137214B (en) | 2015-06-23 | 2015-06-23 | A kind of satellite bus data analysis system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510350429.8A CN105137214B (en) | 2015-06-23 | 2015-06-23 | A kind of satellite bus data analysis system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105137214A CN105137214A (en) | 2015-12-09 |
| CN105137214B true CN105137214B (en) | 2018-05-22 |
Family
ID=54722630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510350429.8A Active CN105137214B (en) | 2015-06-23 | 2015-06-23 | A kind of satellite bus data analysis system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105137214B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106452843B (en) * | 2016-09-14 | 2019-04-09 | 北京控制工程研究所 | A kind of in-orbit 1553B bus network malfunction monitoring diagnostic method |
| CN109407573A (en) * | 2018-09-17 | 2019-03-01 | 西北工业大学 | A kind of CAN bus based moonlet Integrated Electronic System and method for allocating tasks |
| CN109766229B (en) * | 2018-12-05 | 2022-02-11 | 华东师范大学 | Anomaly detection method for integrated electronic system |
| CN112564772B (en) * | 2020-12-03 | 2022-09-27 | 中国空间技术研究院 | Satellite data acquisition system |
| CN114697156B (en) * | 2022-03-16 | 2024-07-02 | 航天科工火箭技术有限公司 | Rocket bus data monitoring method, rocket bus data monitoring device, terminal equipment and medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101788817A (en) * | 2010-01-29 | 2010-07-28 | 航天东方红卫星有限公司 | Fault recognition and processing method based on satellite-bone bus |
| CN102183768A (en) * | 2011-02-24 | 2011-09-14 | 航天东方红卫星有限公司 | Satellite fault rapid positioning system based on bus monitoring |
| CN102540207A (en) * | 2011-12-09 | 2012-07-04 | 北京空间飞行器总体设计部 | Analytical method for testing data of space-borne dual-frequency GPS (Global Position System) receiver |
| CN103957136A (en) * | 2014-04-29 | 2014-07-30 | 航天东方红卫星有限公司 | Moonlet CAN bus monitoring system |
| CN104506376A (en) * | 2014-11-23 | 2015-04-08 | 北京航空航天大学 | Multichannel redundant CAN (Controller Area Network) bus test system with frame start sensitive synchronous trigger function |
| CN104539345A (en) * | 2014-12-26 | 2015-04-22 | 深圳航天东方红海特卫星有限公司 | Microsatellite multifunctional data testing system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020173888A1 (en) * | 2001-05-21 | 2002-11-21 | Shelton Robert Leo | Aircraft location and tracking system |
-
2015
- 2015-06-23 CN CN201510350429.8A patent/CN105137214B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101788817A (en) * | 2010-01-29 | 2010-07-28 | 航天东方红卫星有限公司 | Fault recognition and processing method based on satellite-bone bus |
| CN102183768A (en) * | 2011-02-24 | 2011-09-14 | 航天东方红卫星有限公司 | Satellite fault rapid positioning system based on bus monitoring |
| CN102540207A (en) * | 2011-12-09 | 2012-07-04 | 北京空间飞行器总体设计部 | Analytical method for testing data of space-borne dual-frequency GPS (Global Position System) receiver |
| CN103957136A (en) * | 2014-04-29 | 2014-07-30 | 航天东方红卫星有限公司 | Moonlet CAN bus monitoring system |
| CN104506376A (en) * | 2014-11-23 | 2015-04-08 | 北京航空航天大学 | Multichannel redundant CAN (Controller Area Network) bus test system with frame start sensitive synchronous trigger function |
| CN104539345A (en) * | 2014-12-26 | 2015-04-22 | 深圳航天东方红海特卫星有限公司 | Microsatellite multifunctional data testing system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105137214A (en) | 2015-12-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105137214B (en) | A kind of satellite bus data analysis system | |
| CN103163420B (en) | Power transformer intelligent online state judgment method | |
| CN101446827B (en) | Process fault analysis device of process industry system and method therefor | |
| CN101718634B (en) | Equipment state comprehensive dynamic alarming method based on multivariate probability model | |
| CN102779230B (en) | State analysis and maintenance decision judging method of power transformer system | |
| CN109829468A (en) | Civil aircraft Fault Diagnosis of Complex System method based on Bayesian network | |
| CN115657617A (en) | Implementation method of intelligent monitoring alarm system for thermal power plant | |
| CN106301522A (en) | The Visual method of fault diagnosis of Remote Sensing Ground Station data receiver task and system | |
| CN108051709A (en) | Transformer state online evaluation analysis method based on artificial intelligence technology | |
| CN105717887B (en) | Oil vapor treatment station intelligent early-warning system based on Internet of Things sensing data | |
| CN104751285B (en) | Power network schedule automation front-collection data accuracy differentiates and warning system | |
| CN103777609A (en) | Embedded intelligent monitoring and remote maintenance system of powder forming machine | |
| CN111143438A (en) | Workshop field data real-time monitoring and anomaly detection method based on stream processing | |
| CN110297207A (en) | Method for diagnosing faults, system and the electronic device of intelligent electric meter | |
| CN113176770A (en) | Remote monitoring system for equipment failure | |
| CN106932200A (en) | The Gaussian process multiple features intelligent diagnosing method of rolling bearing fault | |
| CN104267346A (en) | Remote fault diagnosis method of generator excitation system | |
| CN107025355A (en) | A kind of ship fault diagnosis method and system based on fuzzy nearness | |
| CN107884647A (en) | Transformer fault early warning system based on data mining | |
| CN109587153A (en) | General ecological safety monitoring data acquisition method and device based on data flow customization | |
| CN107065605B (en) | A kind of fault diagnosis and alarm method | |
| CN103758742A (en) | Plunger pump failure analysis system based on double-class feature fusion diagnosis | |
| CN112381288B (en) | Ecological management system for grassland in alpine regions | |
| CN105158610A (en) | Screening processing method of transformer state early warning data suspected value | |
| CN111581249A (en) | Data analysis system for agricultural production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |