CN103941681A - Delay telemetry data sampling method based on threshold value judgment - Google Patents
Delay telemetry data sampling method based on threshold value judgment Download PDFInfo
- Publication number
- CN103941681A CN103941681A CN201410126290.4A CN201410126290A CN103941681A CN 103941681 A CN103941681 A CN 103941681A CN 201410126290 A CN201410126290 A CN 201410126290A CN 103941681 A CN103941681 A CN 103941681A
- Authority
- CN
- China
- Prior art keywords
- telemetry
- data
- telemetering state
- telemetering
- 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.)
- Pending
Links
Landscapes
- Radio Relay Systems (AREA)
- Selective Calling Equipment (AREA)
Abstract
The invention provides a delay telemetry data sampling method based on threshold value judgment. The method includes the steps of firstly, enabling all lower computers to collect data in the telemetry state, comparing the data with preset initial telemetry data, if the data exceed the range of an initial telemetry threshold value, setting the telemetry status flag, storing the data in the telemetry state into buffer regions of all the lower computers, and waiting for polling conducted by a satellite mainframe, and if the data do not exceed the initial telemetry threshold range, eliminating the telemetry status flag, storing the data in the telemetry state into the buffer regions of all the lower computers, and waiting for polling conducted by the mainframe; secondly, enabling the satellite mainframe to sequentially conduct polling on all the lower computers to obtain telemetry data, judging the flag states of all the telemetry data, if the telemetry status flag is invalid, not conducing storage, and if the telemetry status flag is valid, simultaneously storing the telemetry data along with satellite time data into a delay telemetry buffer region of the satellite mainframe and waiting for downloading. According to the method, the delay telemetry effectiveness of a small satellite is improved, in-orbit risks and potential hazards of the satellite are reduced, and the status of the satellite is monitored in real time.
Description
Technical field
The invention belongs to satellite telemetry field, relate to a kind of delayed telemetry data sampling method based on threshold decision, as a kind of method of moonlet delayed telemetry data compression, can expand to the multiple needs such as deep space probe, scientific experiment satellite and prolong the spacecraft of distant data compression.
Background technology
On star, remote measurement is to obtain the running parameter of each system on star and environmental parameter is object, taking modern information technologies as basic application system, is divided into real-time telemetry and delayed telemetry.System delay remote measurement is for real-time telemetry, that one is first stored in satellite real-time telemetry data in satellite buffer zone, under the suitable time period, pass to the remote measurement disposal route of ground observing and controlling system, be mainly used in recording satellite in status information that can not observing and controlling radian.Delayed telemetry is the important component part of moonlet telemetry parameter, is monitoring satellitosis, the position location satellite important evidence of fault in orbit, especially moonlet can not observing and controlling segmental arc, delayed telemetry is almost unique foundation of position location satellite fault.
In the existing moonlet of China field, owing to being subject to the resource limitations such as satellite telemetry passage, buffer zone, processor performance, need to adopt data compression mode to process delayed telemetry.Existingly prolong distant compression algorithm, adopt the mode of uniform sampling to design.First, Star Service central computer is to remote measurement poll, and remote measurement bag is judged, if meet sampling rate requirement, deposits remote measurement in delayed telemetry buffer zone; If do not meet, do not deal with.Particular flow sheet as shown in Figure 1.
But along with improving constantly of the complexity of satellite, the telemetry amount of satellite is increasing, according to the design concept of uniform sampling compression algorithm, the method is more and more not suitable with the needs of satellite development.For the treatment of delayed telemetry, the problem of existence mainly contains:
1. deficiency state function for monitoring.Existingly prolong distant compression algorithm, just, according to time cycle storage telemetry intelligence (TELINT), can not change and rationally record telemetry intelligence (TELINT) according to satellitosis, lack the surveillance coverage to satellitosis.
2. record data effective rate of utilization is low.Delayed telemetry records satellite state information, is the important evidence that judges satellite on-orbit fault.And existing compress mode, according to time cycle record data, has blindness, can not record more failure message for satellitosis, that records prolongs distant data, though can reflect satellitosis variation tendency, but to judging that satellite failure, without too large meaning, causes data effective rate of utilization low.
3. fault loss is high.Move through always seeing with existing moonlet, prolong distant sampling rate be often set to 1/100 even lower, for the gradual remote measurement that reaches 32 second cycle, an almost status information of 50 minutes ability records.Satellite state information is lost serious, very easily causes satellite failure undetected, brings potential risk.
In sum, existing compression algorithm factor data effective rate of utilization is low, fault loss is high, lack the problems such as effective function for monitoring, is difficult to adapt to the moonlet growth requirement in future, is badly in need of a kind of compression algorithm design that more meets satellite development need.
Summary of the invention
The technical matters that the present invention solves is: overcome the deficiencies in the prior art, a kind of delayed telemetry data sampling method based on threshold decision is provided, make up the deficiency of existing moonlet delayed telemetry compression method, improved moonlet delayed telemetry validity, reduced satellite risk and hidden danger in-orbit; Realize the supervision to satellitosis, also can control by ground, the real-time specific aim of the remote measurement of specifying has been monitored.
Technical scheme of the present invention is: a kind of delayed telemetry data sampling method based on threshold decision, and step is as follows:
1) on star, each slave computer gathers telemetering state data, and compare with default initial telemetry, if exceed initial remote measurement threshold range, set telemetering state zone bit, again telemetering state data are deposited in to the buffer zone of each slave computer, wait for Star Service host computer polls; If do not exceed initial remote measurement threshold range, remove telemetering state zone bit, telemetering state data are stored in the buffer zone of each slave computer, wait for host computer polls; Described telemetering state data comprise packet header, telemetry, check code;
2) the Star Service main frame each slave computer of poll successively, obtains telemetering state data, judges the mark state of each telemetering state data; If telemetering state zone bit is invalid, do not store, if telemetering state zone bit is effective, by these telemetering state data, data deposit in the distant buffer zone of prolonging of Star Service main frame simultaneously during together with star, wait for down and passing.
In step 1), the telemetering state data that collect and default initial telemetry are compared, if do not exceed initial remote measurement threshold range, provide check code, and as telemetering state zone bit; If exceed initial remote measurement threshold range, by after check code negate, as telemetering state zone bit.
Step 2) in Star Service main frame collect telemetering state data, and judge telemetering state zone bit, if former check code is not stored; If be former check code after negate, record these telemetering state data to prolonging distant buffer zone, and wait for biography down; If zone bit is other, ignore this telemetering state data.
The present invention's advantage is compared with prior art:
(1) the present invention is according to the satellitosis situation of change information recording that takes remote measurement, more meet the purpose of design of moonlet delayed telemetry, the data of record are all " problem datas " obtaining after satellite Autonomous judgement, maintainer judges satellitosis accordingly in-orbit, reduce the difficulty of on-orbit fault analysis and location, improved the data effective rate of utilization of record.
(2) the inventive method can record satellite at the abnormal state information that can not survey segmental arc, can better record satellite fault in orbit;
(3) the present invention, by initial telemetry and initial remote measurement threshold range are adjusted in real time, changes transmitted data amount, controls content and the weight of measurement monitoring, monitors specifying remote measurement to implement specific aim;
(4) the inventive method is without changing the existing hardware setting of satellite, only need do a few modifications to each slave computer software, just can be embedded in small satellite system, threshold decision process is scattered in each slave computer, few to each processor resources occupation rate, can not cause burden to processor.There is implementation complexity low, the advantage such as practical.
Brief description of the drawings
Fig. 1 is based on the distant compression algorithm process flow diagram of prolonging of uniform sampling;
Fig. 2 is algorithm threshold value decision flow chart of the present invention;
Fig. 3 is that algorithm of the present invention prolongs distant Stored Procedure figure;
Fig. 4 is telemetering state data instance figure.
Embodiment
As shown in Figure 1, existing moonlet prolongs distant algorithm flow, and Star Service central computer is to remote measurement poll, and telemetry is judged, if meet sampling rate requirement, deposits telemetry in delayed telemetry buffer zone; If do not meet, do not deal with.The method can only blindly record delayed telemetry data according to polling cycle.
As shown in Figure 2, this method threshold decision process, is completed by each slave computer.First each slave computer gathers telemetering state data, compares afterwards with initial telemetry, if do not exceed initial remote measurement threshold range, removes telemetering state zone bit, and telemetering state data are stored in buffer zone, waits for host computer polls; If exceed initial remote measurement threshold range, set telemetering state zone bit, then deposit telemetering state data in buffer zone, wait for host computer polls.
As shown in Figure 3, for this algorithm prolongs distant storing process, completed by Star Service main frame.Star Service main frame is the each slave computer of poll first successively, obtains telemetering state data.Judge afterwards the mark state of each telemetering state data, if effectively, when this is wrapped to telemetering state data together with star, data deposit in and prolong distant buffer zone, and wait for biography down; If invalid, do not store, finish.
As shown in Figure 4, telemetering state data packet instance graph, telemetering state data comprise packet header, telemetry, check code three parts, each slave computer gathers telemetering state data, if through threshold decision, this bag telemetering state data are correct, provide correct check code, as telemetering state zone bit; Ruo Benbao telemetering state data process judges wrong (as adding black underlined " 07 " for exceeding threshold value), by check code negate, and as telemetering state zone bit.Star Service main frame is collected remote measurement and is judged check code, if correct, does not deal with; If correct after negate, record remote measurement to prolonging distant buffer zone; If also do not meet after negate, illustrate that this bag remote measurement transmitting is wrong, otherwise processed.
The inventive method can be used as a kind of method of moonlet delayed telemetry data compression, can be widely used in the multiple needs such as deep space probe, scientific experiment satellite and prolong the spacecraft of distant data compression, is specially adapted to the various satellites that delayed telemetry arranges that have.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, any be familiar with those skilled in the art the present invention disclose technical scope in; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.
The content not being described in detail in instructions of the present invention belongs to professional and technical personnel in the field's known technology.
Claims (3)
1. the delayed telemetry data sampling method based on threshold decision, is characterized in that step is as follows:
1) on star, each slave computer gathers telemetering state data, and compare with default initial telemetry, if exceed initial remote measurement threshold range, set telemetering state zone bit, again telemetering state data are deposited in to the buffer zone of each slave computer, wait for Star Service host computer polls; If do not exceed initial remote measurement threshold range, remove telemetering state zone bit, telemetering state data are stored in the buffer zone of each slave computer, wait for host computer polls; Described telemetering state data comprise packet header, telemetry, check code;
2) the Star Service main frame each slave computer of poll successively, obtains telemetering state data, judges the mark state of each telemetering state data; If telemetering state zone bit is invalid, do not store, if telemetering state zone bit is effective, by these telemetering state data, data deposit in the distant buffer zone of prolonging of Star Service main frame simultaneously during together with star, wait for down and passing.
2. a kind of delayed telemetry data sampling method based on threshold decision according to claim 1, it is characterized in that: in step 1), the telemetering state data that collect and default initial telemetry are compared, if do not exceed initial remote measurement threshold range, provide check code, and as telemetering state zone bit; If exceed initial remote measurement threshold range, by after check code negate, as telemetering state zone bit.
3. a kind of delayed telemetry data sampling method based on threshold decision according to claim 2, is characterized in that: step 2) in Star Service main frame collect telemetering state data, and judge telemetering state zone bit, if former check code is not stored; If be former check code after negate, record these telemetering state data to prolonging distant buffer zone, and wait for biography down; If zone bit is other, ignore this telemetering state data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410126290.4A CN103941681A (en) | 2014-03-31 | 2014-03-31 | Delay telemetry data sampling method based on threshold value judgment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410126290.4A CN103941681A (en) | 2014-03-31 | 2014-03-31 | Delay telemetry data sampling method based on threshold value judgment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103941681A true CN103941681A (en) | 2014-07-23 |
Family
ID=51189389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410126290.4A Pending CN103941681A (en) | 2014-03-31 | 2014-03-31 | Delay telemetry data sampling method based on threshold value judgment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103941681A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105302861A (en) * | 2015-09-21 | 2016-02-03 | 航天东方红卫星有限公司 | Telemetry data reduction method based on message push mechanism |
| CN112367108A (en) * | 2020-09-28 | 2021-02-12 | 北京空间飞行器总体设计部 | Dynamic cache optimization method for satellite real-time monitoring system |
| TWI720047B (en) * | 2015-12-16 | 2021-03-01 | 美商英特爾公司 | Controlling telemetry data communication in a processor |
| CN117395381A (en) * | 2023-12-12 | 2024-01-12 | 上海卫星互联网研究院有限公司 | Compression method, device and equipment for telemetry data |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102142883A (en) * | 2010-01-29 | 2011-08-03 | 上海卫星工程研究所 | Telemetry information processing method |
| CN102521953A (en) * | 2011-11-15 | 2012-06-27 | 北京空间飞行器总体设计部 | Method for recording and downloading satellite measured and controlled telemetry parameters of invisible arc section |
| CN102840992A (en) * | 2012-08-22 | 2012-12-26 | 航天东方红卫星有限公司 | Satellite-borne self-testing method based on satellite network |
| US8396664B2 (en) * | 2009-08-31 | 2013-03-12 | Terra Imaging | 3-D golf course navigation device and image acquisition method |
-
2014
- 2014-03-31 CN CN201410126290.4A patent/CN103941681A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8396664B2 (en) * | 2009-08-31 | 2013-03-12 | Terra Imaging | 3-D golf course navigation device and image acquisition method |
| CN102142883A (en) * | 2010-01-29 | 2011-08-03 | 上海卫星工程研究所 | Telemetry information processing method |
| CN102521953A (en) * | 2011-11-15 | 2012-06-27 | 北京空间飞行器总体设计部 | Method for recording and downloading satellite measured and controlled telemetry parameters of invisible arc section |
| CN102840992A (en) * | 2012-08-22 | 2012-12-26 | 航天东方红卫星有限公司 | Satellite-borne self-testing method based on satellite network |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105302861A (en) * | 2015-09-21 | 2016-02-03 | 航天东方红卫星有限公司 | Telemetry data reduction method based on message push mechanism |
| CN105302861B (en) * | 2015-09-21 | 2018-11-23 | 航天东方红卫星有限公司 | A kind of telemetry data reduction processing method based on message push-mechanism |
| TWI720047B (en) * | 2015-12-16 | 2021-03-01 | 美商英特爾公司 | Controlling telemetry data communication in a processor |
| CN112367108A (en) * | 2020-09-28 | 2021-02-12 | 北京空间飞行器总体设计部 | Dynamic cache optimization method for satellite real-time monitoring system |
| CN117395381A (en) * | 2023-12-12 | 2024-01-12 | 上海卫星互联网研究院有限公司 | Compression method, device and equipment for telemetry data |
| CN117395381B (en) * | 2023-12-12 | 2024-03-12 | 上海卫星互联网研究院有限公司 | Compression method, device and equipment for telemetry data |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103941681A (en) | Delay telemetry data sampling method based on threshold value judgment | |
| CN103200046B (en) | The method and system of monitoring network element device performance | |
| CN103001809B (en) | Service node method for monitoring state for cloud storage system | |
| CN105868075A (en) | System and method for monitoring and analyzing large amount of logs in real time | |
| CN110035055A (en) | Industrial equipment remote data acquisition and processing method and transmission method | |
| EP3202093A1 (en) | Systems and methods for monitoring globally distributed remote storage devices | |
| CN107451268A (en) | A kind of method that suspension towards real-time data base resumes | |
| CN108769076B (en) | Data acquisition system, method and device with network isolation function | |
| CN103986779B (en) | A kind of application data transmission method, device and terminal device | |
| CN107483409B (en) | A method of the operational order real-time monitoring echo towards industry control operating system | |
| CN110333710A (en) | A kind of detection of spacecraft on-orbit fault and fault processing system and method | |
| CN107124344A (en) | Train is changed and data storage control method with CAN ethernet communications | |
| CN203520605U (en) | Long-distance pipeline data acquisition device and long-distance pipeline state monitoring system | |
| CN111064779A (en) | SF of transformer substation6Online monitoring device, method and system | |
| CN107800722A (en) | Isolate the method and device of industrial control equipment and external network server | |
| CN108540491B (en) | Semi-automatic penetration testing system and method based on passive scanning | |
| CN111385332A (en) | Internet of things equipment, Internet of things platform access method and equipment | |
| CN104865860A (en) | Sampling, storing and inquiring method and device of WTGS (Wind Turbine Generator System) state monitoring system | |
| CN109213657B (en) | Power grid operation data cloud storage device | |
| CN204119531U (en) | Distributed energy circuit Multidimensional Awareness system | |
| CN104202097B (en) | A kind of high-velocity scanning method for digital monitoring receiver | |
| CN105743695A (en) | Monitoring method and system based on IEC 104 protocol | |
| EP3767882B1 (en) | Network traffic monitoring device | |
| CN201918998U (en) | System for monitoring lunar satellite receiving signal in real time | |
| CN104267622A (en) | Satellite telemetering acquisition device and method based on tasks and time |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140723 |