CN102158392B - Method for telemetering of advanced orbiting system (AOS) of distributed framework satellite - Google Patents
Method for telemetering of advanced orbiting system (AOS) of distributed framework satellite Download PDFInfo
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Abstract
The invention provides a method for telemetering of an advanced orbiting system (AOS) of a distributed framework satellite. A distributed satellite framework is adapted on a telemetering information flow collection, thus telemetry parameters with strong correlation are acquired in a centralized mode in the form of module and form AOS telemetering source packets. A quick acquisition and transmission method in which downloading rate is higher than normal downloading rate is adopted in an acquisition and transmission links, and a host computer realizes an AOS framing function and a deployment function of telemetering strategies. When the telemetering strategies are changed, information exchange procedures and hardware processing procedures in the acquisition, transmission and processing links can be simplified, thus reducing the risk of timing sequence disorder. In the process of deploying the strategies, the demands of satellite telemetering are searched sufficiently, and a deployment strategy with combination of normal telemetering, quick telemetering and slow telemetering is put forward and inserted into domain multiplexing telemetering at stages, thus preferably meeting the demands of the satellite telemetering.
Description
Technical field
The present invention relates to a kind of satellite telemetry method.
Background technology
Consultative committee for space data system (CCSDS) has advised that packet telemetry from routine is to senior variety of protocol at rail data system (AOS).The design work of spatial data link is carried out in the remote measurement of the present complicated space mission all suggestion of the remote measurement in the AOS as the basis.
The Future in China satellite platform will develop towards the framework that the collective and distributive type electronic equipment distributes, this has brought good opportunity for the change of telemetry mode, change the constraint of PCM set form remote measurement in the past, employing is take the telemetry mode of AOS remote measurement as the basis, can increase practicality, the flexibility of remote measurement, minimizing system simultaneously substitutes the heavy burden of the redesign that brings.
For AOS, its advice content is mainly the implementation method of communication system data link layer, builds together and has discussed 8 kinds of business, and the transmission that adapts to sound, image, HRT high-rate telemetry, low-speed processing data can two-wayly be provided.Different transmission mechanism (synchronous, asynchronous, etc. time) and various data format protocol also are provided simultaneously.AOS can support from simple to the remote measurement design of complex aircraft system, but for concrete aircraft, the AOS telemetry scheme supporting according to the aircraft characteristics should be arranged.The name of delivering as the 11 national remote sensing remote measuring and controlling scientific seminar Xi'an mapping research institute in 2008 is called " application of CCSDS in the high-resolution earth observation satellite " literary composition, set forth remote sensing satellite in the method for designing of the aspects such as design remote measurement source bag, allotment strategy, emphasis lays particular emphasis on compression and the transmission of image data, and its weak point is that remote mode is single, versatility is not strong.
Summary of the invention
Technology of the present invention is dealt with problems and is: overcome the deficiencies in the prior art, provide a kind of general, have high-throughput, adapt to the AOS method of telemetering of multiple rate business, be applicable to the satellite of collective and distributive type telemetry-acquisition framework.
Technical solution of the present invention is: the AOS method of telemetering of collective and distributive type framework satellite, and step is as follows:
(1) from the difference of computer according to parameter type, by internal bus to collect all telemetries of its each discrete point of being responsible for monitoring higher than the speed that passes down speed;
The telemetry parameter classification of (2) collecting from computer young pathbreaker large according to the relevance between telemetry parameter, establishment source bag; Described source bag is made of leading head and data field according to the AOS standard implementation, and data field length is variable;
(3) master computer equally spaced collects the mode that each wraps with command response from the source of computer acquisition by the 1553B bus; After collecting end, upgrade telemetry to the RT end of 1553B from computer, the limiting access sign is set this moment, when upgrading end, cancel the limiting access sign, wait for the BC end reading of 1553B;
(4) master computer carries out framing according to the AOS standard, and step is:
(41) master computer is according to service transmission rate difference or the different pseudo channel of collecting device different set, simultaneously each source bag from computer classified according to transmission speed and brings into separately the pseudo channel transmit queue;
(42) the active bag of each pseudo channel is continued arrangement forms the bag territory of M_PDU; When having an above M_PDU to load same source bag, the source bag in each M_PDU need not add leading head again;
(43) each M_PDU is respectively charged into the data field of each VCDU in this pseudo channel, when building VCDU, adds and insert the territory;
(44) according in the rail orbital motion stage, fill and insert the territory content, insert territory time division multiplexing under various track conditions;
(45) add synchronization character before VCDU, be formed in the transmission frame CADU that can transmit in physical channel;
(5) CADU is sent to the measurement and control unit modulate emission.
The present invention's advantage compared with prior art is:
(1) the inventive method adapts to following collective and distributive type satellite framework, and the telemetry parameter collection also is the collective and distributive type framework, and the process of compiling by telemetry parameter successively is described from the computer to the master computer has versatility preferably.Pay attention to simultaneously the details of data preparation, propose from the computer Quick Acquisition, master computer is selected the mode of arrangement, when changing scheduling strategy, makes from computer and can not make any modification, and the work of subpackage framing is all completed by master computer.Make like this can solve when rail remote measurement strategy changes, whole star electronic circuit all will involve work, the problem that the sequencing control difficulty is large, and each link effect of RTA remote test access is clear and definite, and the path is clear, reduces the reciprocal process of controlling.Each link division of labor of remote measurement is clear and definite, and sequential is simple, and method of telemetering transmission policy changes in case can solve in the past, and whole star telemetric circuit all will be made the problem of Complex Response.
(2) the inventive method is fully excavated the satellite transmission characteristics, in the critical data of inserting under the various track pattern of territory multiplexing transmission, also propose simultaneously normal remote measurement, routing and pass soon remote measurement and three kinds of dispatching methods of internal memory download remote measurement, satisfy multiple demand at rail transmission remote measurement strategy when assurance is ageing, makes remote measurement serve better satellite monitoring.
Description of drawings
Fig. 1 is the FB(flow block) of the inventive method;
Fig. 2 is that collective and distributive type satellite telemetry of the present invention gathers architecture principle figure;
Fig. 3 is the structure chart of AOS of the present invention source bag;
Fig. 4 is four layers of nested structure figure of the AOS remote measurement adopted of the present invention, namely the transmission of data structure of master computer structure transmission.
Embodiment
As depicted in figs. 1 and 2, the present invention mainly comprises: the collection of the collection of load equipment telemetry parameter, load equipment telemetry parameter, from computer telemetry system parametric classification and source bag generate, the telemetry parameter of telemetry parameter transmission from the computer to the master computer, master computer is unpacked and select the source bag allotment of (optional), master computer and framing, interrupt response under master computer with transmission frame deliver to measurement and control unit, measurement and control unit carries out modulation treatment, antenna transmission telemetered signal to the ground step.Main performing step is as follows:
1, the collection of load equipment telemetry parameter.
For the telemetry parameter collection of different attribute, adopt different telemetry-acquisition circuit, adopt A/D as temperature, two level amounts adopt comparator etc.Telemetry parameter is according to the dividing mode of load blocks, and sub-module is concentrated and gathered telemetry parameter.As for distribution, thermal control, control, propelling etc., clear and be easy to the group bag according to module assignment source package definition.
2, the quick collection of load equipment telemetry parameter.
By internal serial bus quick collection telemetry, collection rate will reach the requirement of the fastest the transmission of data frequency from computer, is generally a second level.
3, build from computer telemetry system parametric classification and source bag.
Complete the structure of remote measurement complete source bag from computer, comprise in source bag that data are arranged sequentially, source packet length statistics, the verification of source bag data and the filling of the leading head of source bag.Build result as shown in Figure 3, concrete steps are:
(1) set up the leading head of source bag
A. carrying out source bag classification as the basis take the strong telemetry parameter of correlation, is every provenance package definition application process sequence number according to the AOS standard.
B. calculating source bag data field length n, generate the Bao Changwei n-1 in leading header.The source packet length is transmitted as the boundary to be no more than three frames, and when Dang Yuanbao was long, reply source bag was cut apart, and is divided into different source bags.
C. wrapping sequential control is important step, in order to improve throughput, adopts not packet mode, and therefore according to agreement, grouping is masked as 11.Source packet sequence counting is filling out 0 from computer.
D. do not adopt secondary top guide, secondary top guide sign sets to 0.
E. in leading head, version number decides according to actual conditions, and type mark is set to 0 usually.
(2) structure source bag data field
A. according to the cable order of connection of each subsystem telemetry parameter acquisition module, determine the telemetry parameter ordering.
B. set up each source bag data field array, telemetry parameter is that unit is stored in the data field array according to said sequence according to byte.
C adds up and verification to the data except the check byte of last byte in the bag data field of source, forms the check byte of last byte in data field.The verifying function of formation source bag thus.
4, the telemetry parameter transmission from the computer to the master computer.
Master computer is by the 1553B bus, and transmission rate adopts standard configuration speed, equally spaced each source bag from the computer Quick Acquisition is collected in the command/response mode.
Have during the total line traffic control of 1553B a plurality ofly to exist from computer, uniformly-spaced timesharing is collected, and protecting window is set.So-called protecting window refer to from computer when upgrading telemetry to the RT end of 1553B; the limiting access sign is set, forbids that the BC end of 1553B is peeked or other unexpected interference access, when upgrading end; cancel the limiting access sign, wait for that the BC of 1553B brings in peek.
Above-mentioned steps 2-step 4 is to distinguish over common telemetry parameter to transmit two crucial steps, original telemetry parameter according to the fastest transmission rate collection, internal transmission speed according to rapid rate transmission transmission, do like this in the time of can making the allotment strategy change, as transmit frequency, transferring content etc., the internal delivery of original telemetry parameter is not affected, and the minimizing hardware time order substitutes the shakiness of bringing and leans on problem.
5, the telemetry parameter of master computer is unpacked and is selected.
After master computer is received telemetry, can be according to the appointment of remote measurement strategy, the telemetry parameter of selecting the source bag that need to pass down and need to remaining in advance controlling at rail, will rail controls need the telemetry parameter reserved from the bag of source fractionation out and according to acquisition time sequential storage and arrangement.This step is optional step.
6, the framing of master computer and allotment strategy are realized.
This is one step of key that the AOS remote measurement realizes.The inventive method is chosen the second-level dispatching strategy that gathers virtual channel schedule and source packet scheduling combination.Framing situation on physical channel as shown in Figure 4.Figure 4 shows that the combination of AOS suggestion, the form of M_PDU, VCDU and CADU is the AOS suggestion, but in the present invention, application process is special, and scheduling strategy is responsible for assigning from pseudo channel and source and begins to embody, and inserts the territory in VCDU and adopts a minute time-multiplexed method of track stage.Detailed process is:
(1) build VCDU, correlation step is as follows:
A. logical definition: master computer according to service transmission rate difference or the different pseudo channel of collecting device different set (VC1, VC2 ...), simultaneously each source bag from computer is classified and is included in
In pseudo channel transmit queue separately, source bag in VC1 (PK1, PK2 ..., PKi), source bag in VC2 (PKi+1 ... PKi+j), the like.In each pseudo channel, source bag number can not wait.
Need coated the concentrating in source of fast transport to put into a pseudo channel.Need to pass slowly source Bao Ze and put into another pseudo channel.The source bag of normal transmission is concentrated and is put into other pseudo channels.Pseudo channel is logical concept, and specific implementation is to carry data down transmission by building virtual channel data unit unit (VCDU), and the virtual channel identification in the leading head of VCDU can be distinguished pseudo channel.
B. build M_PDU: with the arrangement that continues in a certain order of the active bag of each pseudo channel, form the bag territory of some M_PDU.Suppose the active bag length of arranging formation that continues be L,
When in Fig. 4, M PDU wrapped length of field N, the mode of each M_PDU carries sources bag formation was as follows:
M_PDU (1) bag territory=source bag formation (1:N);
M_PDU (2) bag territory=source bag formation (N+1:2N);
M_PDU (k) bag territory=source bag formation (kN+1:L);
When having 1 above M_PDU to load same source bag, the source bag in each M_PDU need not add leading head again.
C. build VCDU: each M_PDU is respectively charged into the data field of each VCDU in this pseudo channel,, adds and insert the territory content according to AOS when building VCDU.According in the rail orbital motion stage, fill and insert the territory content, insert territory time division multiplexing under various track conditions, can improve throughput and visuality.As shown in Figure 4, insert length of field and fix, under different track pattern, insert the telemetry that the every frame of important needs of inserting each track stage in the territory passes down.
(2) virtual channel schedule: the transformation task during enforcement in pseudo channel, completed each VCDU carrying M_PDU and a class source bag wherein by a plurality of VCDU sequential delivery.Fast biography pseudo channel is many in the unit interval call number.Slowly pass pseudo channel few in the unit interval call number.
(3) build CADU: add synchronization character before VCDU, namely be formed in the transmission frame CADU that can transmit in physical channel.
7, under interrupt response, master computer is delivered to measurement and control unit with transmission frame.
Measurement and control unit produces interrupt signal according to transmission frame period, and master computer will specify the transmission frame under a good pseudo channel of the group under the allotment strategy to pass to measurement and control unit.
8, measurement and control unit carries out modulation treatment, comprises intermediate frequency Modulation and rf modulations.
9, the antenna transmission telemetered signal is to ground.
The content that is not described in detail in specification of the present invention belongs to those skilled in the art's known technology.
Claims (1)
1. the AOS method of telemetering of collective and distributive type framework satellite is characterized in that step is as follows:
(1) from the difference of computer according to the telemetry parameter type, by internal bus to collect all telemetry parameters of its each discrete point of being responsible for monitoring higher than the speed that passes down speed;
The telemetry parameter classification of (2) collecting from computer young pathbreaker large according to the relevance between telemetry parameter, establishment source bag; Described source bag is made of leading head and data field according to the AOS standard implementation, and data field length is variable;
(3) master computer equally spaced collects the mode that each wraps with command response from the source of computer acquisition by the 1553B bus; After collecting end, upgrade telemetry to the RT end of 1553B from computer, the limiting access sign is set this moment, when upgrading end, cancel the limiting access sign, wait for the BC end reading of 1553B;
(4) master computer carries out framing according to the AOS standard, and step is:
(41) master computer is according to service transmission rate difference or the different pseudo channel of collecting device different set, simultaneously each source bag from computer classified according to transmission speed and brings into separately the pseudo channel transmit queue;
(42) the active bag of each pseudo channel is continued arrangement forms the bag territory of M_PDU; When having an above M_PDU to load same source bag, the source bag in each M_PDU need not add leading head again;
(43) each M_PDU is respectively charged into the data field of each VCDU in this pseudo channel, when building VCDU, adds and insert the territory;
(44) according in the rail orbital motion stage, fill and insert the territory content, insert territory time division multiplexing under various track conditions;
(45) add synchronization character before VCDU, be formed in the transmission frame CADU that can transmit in physical channel;
(5) CADU is sent to the emission of Satellite TT cells modulate.
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Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102542002B (en) * | 2011-12-08 | 2014-05-07 | 北京空间飞行器总体设计部 | Satellite telemetry data treatment system and realization method thereof |
| CN102710317B (en) * | 2012-04-27 | 2015-02-11 | 北京空间飞行器总体设计部 | Dynamic remote measuring organization and control method based on advanced orbiting system |
| CN102710610A (en) * | 2012-05-14 | 2012-10-03 | 南昌航空大学 | Virtual transmission method for air-space-ground integrated network |
| CN102968488B (en) * | 2012-11-26 | 2015-07-01 | 北京空间飞行器总体设计部 | Telemetering data organization method simultaneously applicable to PCM telemetering and AOS telemetering |
| CN104283942B (en) * | 2014-09-17 | 2017-11-14 | 上海卫星工程研究所 | Telemetry is collected and dissemination system |
| CN104639274B (en) * | 2014-12-31 | 2017-12-22 | 北京遥测技术研究所 | A kind of Multi target TT＆C method of TDMA networkings |
| CN105892345B (en) * | 2015-01-23 | 2018-09-14 | 北京空间飞行器总体设计部 | PCM is remotely controlled system and Packet telecommand system Combined design method |
| CN105045150B (en) * | 2015-07-14 | 2017-11-07 | 中国空间技术研究院 | A kind of satellite Integrated Electronic System functional module method of telemetering based on state table |
| CN105450545B (en) * | 2015-11-30 | 2018-08-14 | 上海卫星工程研究所 | A kind of adaptive dynamic telemetry bag dispatching method |
| CN106685927A (en) * | 2016-11-29 | 2017-05-17 | 深圳市元征科技股份有限公司 | Data subframe structure compilation method and relevant device |
| CN108400811B (en) * | 2018-02-13 | 2019-06-25 | 北京空间技术研制试验中心 | Spacelab information system based on advanced onboard processing method |
| CN111122966B (en) * | 2019-12-27 | 2022-05-17 | 宁波三星医疗电气股份有限公司 | Load identification module data transmission method, device and system |
| CN111786718A (en) * | 2020-06-11 | 2020-10-16 | 中国人民解放军63921部队 | Satellite optical network management and control plane signaling transmission method based on AoS insertion service |
| CN113193899A (en) * | 2021-03-04 | 2021-07-30 | 上海航天控制技术研究所 | Time division multiplexing satellite telemetry method and apparatus |
| CN116521687B (en) * | 2023-07-04 | 2023-09-22 | 北京航天驭星科技有限公司 | Telemetry data analysis result storage and query method, device and storage medium |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101770541A (en) * | 2010-02-03 | 2010-07-07 | 北京航空航天大学 | Satellite data system simulation platform based on AOS standards |
-
2010
- 2010-12-13 CN CN 201010601553 patent/CN102158392B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101770541A (en) * | 2010-02-03 | 2010-07-07 | 北京航空航天大学 | Satellite data system simulation platform based on AOS standards |
Non-Patent Citations (3)
| Title |
|---|
| 凌志华等，.基于BU- 65170 的1553B 终端设计.《微计算机信息》.2008,第24卷(第1-2期), * |
| 曾连连等,.AOS虚拟信道链路控制器和VCDU合路器的设计实现.《中国空间科学技术》.2007,(第2期), * |
| 李世忠等，.高级在轨系统在高分辨率遥感卫星中的应用.《测绘科学技术学报》.2009,第26卷(第2期), * |
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