CN106688336B - A kind of satellite telemetry centralization of state power distribution and the implementation dispatched - Google Patents
A kind of satellite telemetry centralization of state power distribution and the implementation dispatchedInfo
- Publication number
- CN106688336B CN106688336B CN201218003415.6A CN201218003415A CN106688336B CN 106688336 B CN106688336 B CN 106688336B CN 201218003415 A CN201218003415 A CN 201218003415A CN 106688336 B CN106688336 B CN 106688336B
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- telemetry
- satellite
- packet
- centralization
- state power
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Abstract
The present invention relates to a kind of satellite telemetry centralization of state power distribution and the implementation dispatched, wherein：The host computer of satellite is collected all telemetry parameters of whole star and is stored, and the turnover rate of all telemetries of whole star is 0.5 second/time.By way of the centralization of state power of satellite host computer telemetry parameter distributes, realize satellite downlink telemetry dynamic dispatching ability, can be during satellite test, by way of up note number, the biography speed down of institute's test system telemetry parameter is easily improved, the state of test system is more effectively differentiated, while in satellite failure troubleshooting procedure, the biography speed down of telemetry parameter needed for troubleshooting is mentioned limit priority by way of upper note, the investigation for failure provides optimal telemetering state.And the ability that different working modes remote measurement emphasis is passed down, to passing under different telemetry parameter emphasis, can be realized according to the in-orbit different phase of satellite.The features such as present invention has reasonable scheme, motility, strong adaptability.
Description
Technical field
The present invention relates to the downlink telemetry embodiment of satellite, specifically a kind of satellite telemetry centralization of state power distribution and
The implementation of scheduling.
Background technology
Earth station is by receiving the radiofrequency signal that satellite is sent, and demodulation is with telemetry is walked out of, by distant
The interpretation for surveying data obtains the in-orbit working condition of satellite, and it could be control effectively.Satellite is on ground
In face development stage, each stage electrical testing and every process of the test, judge each by observing telemetry
Whether equipment is working properly, occurs to be required for analyzing telemetry greatly during problem, could accurately ask
Topic positioning.So the good and bad development for satellite of the telemetry scheme of satellite and in-orbit use are heavy to closing
Want.
At present, the conventional downlink telemetry scheme of satellite is distinguished by frame format, mainly there is two kinds：Anchor-frame lattice
Formula remote measurement (PCM remote measurements system) and packet telemetry.It is how rationally sharp in satellite telemetry conceptual design
Make good use of remote measurement resource, meet the remote measurement demand of different subsystems, and more effectively, quickly react satellite
Working condition is the problem of developers must take into consideration, can not avoid.
The content of the invention
In order to improve whole star testing efficiency in satellite development process, facilitate malfunction elimination and satellite to exist
Rail remote measurement strain is used, and the present invention provides a kind of satellite telemetry embodiment, passes through the telemetry parameter centralization of state power point
Match somebody with somebody and the method dispatched reaches above-mentioned purpose.
In order to reach foregoing invention purpose, the technical solution adopted in the present invention is：
A kind of implementation of satellite telemetry centralization of state power distribution and scheduling, is the simplification based on CCSDS standards
Packet telemetry scheme, the host computer (computer) of satellite is collected by bus or telemetry-acquisition equipment
Whole each telemetry parameter of star is stored, every timing in 0.5 second take remote measurement data renewal, it is ensured that whole star own
The turnover rate of telemetry is 0.5 second/time.
Design remote measurement frame format：Divide under fixed remote measurement area and packet telemetry area, fixed remote measurement area and pass telemetry frame
Time and earth station are using parameters such as related observing and controlling channels on head, star, and packet telemetry passes remote measurement under area
Packet, is divided into 3 parts, and each part is a packet, and form see the table below, 3 packets
The length relation in area is as follows：2A=2B=C, in units of byte.
The remote measurement frame format of table 1
Telemetry data packet is designed by each subsystem feature of satellite, each step-by-step test feature, there is following several
Mode：First, each single telemetry parameter of subsystem is summarised in one or more telemetry data packets；The
Two, telemetry parameter is summarised in by one or more telemetry data packets according to the speed demand of whole star telemetry parameter；
3rd, one or more telemetry data packets are summarised according to the variety classes of telemetry parameter.Each remote measurement ginseng
Several length is A (B) or two kinds of C.
Design the big table of telemetry frame：64 frames one are circulated, and 3 packets (A, B, C3 are included per frame
Ge great areas), big table can pass framing under number mode On-board programming, satellite telemetry big according to telemetry frame by note
Table is carried out.
Internal memory is designed to download and note number backward channel：Note number return is carried out using packet C areas to leave with interior
Carry, the slow remote measurement of whole star is passed under the design of packet C areas is main.
The present invention brings following beneficial effect：
A kind of satellite telemetry centralization of state power distribution of the present invention and the embodiment of scheduling, by all remote measurements of satellite
The timing of parameter updates, and the length of each packet is related, it is possible to achieve certain amount in certain time
The ability that is passed down with most rapid rate of any telemetry parameter.By way of On-board programming, remote measurement number is recombinated
According to bag, in-orbit telemetry re-configurability is realized.And design passed under slow telemetering channel note number return with it is interior
Load is left, when can leave load inside with note number return, the biography down of the fast telemetry of whole star is not influenceed.Cause
This, invention achieves beneficial effects such as efficiency high, the strong, strong adaptabilities of flexibility, application prospect is extensive.
Brief description of the drawings
Fig. 1 is：Telemetry storage mode；
Fig. 2 is：The big table of telemetry frame；
Fig. 3 is：Telemetry package packet procedures；
Fig. 4 is：Internal memory is downloaded, note number echo plex mode.
Embodiment
Embodiments of the invention are elaborated below, the present embodiment is premised on technical solution of the present invention
Implemented, give detailed embodiment and specific operating process, but protection scope of the present invention
It is not limited to following embodiments.
As shown in figure 1, telemetry storage mode：The host computer (computer) of satellite by bus or
Telemetry-acquisition equipment, collects whole each telemetry parameter of star and is stored, and every timing in 0.5 second takes remote measurement data
Update, it is ensured that the turnover rate of whole all telemetries of star is 0.5 second/time.
Remote measurement frame format is designed, point fixed remote measurement area and packet telemetry area fix under remote measurement area and pass telemetry frame
Time and earth station are using parameters such as related observing and controlling channels on head, star, and packet telemetry passes remote measurement under area
Packet, is divided into 3 parts：Packet A areas, packet B areas, packet C areas, each portion
It is divided into a packet, the length relation in 3 packet areas is as follows：2A=2B=C, in units of byte.
Telemetry data packet is designed by each subsystem feature of satellite, each step-by-step test feature, there is following several
Mode：First, each single telemetry parameter of subsystem is summarised in one or more telemetry data packets；The
Two, telemetry parameter is summarised in by one or more telemetry data packets according to the speed demand of whole star telemetry parameter；
3rd, it is summarised in one according to the variety classes (such as operating voltage, operating temperature) of telemetry parameter
Or multiple telemetry data packets.The length of each telemetry parameter is A (B) or two kinds of C.
As Figure 2-3, the big table of telemetry frame：The big table of telemetry frame is designed, 64 frames one are circulated, per frame bag
Containing 3 packets (A, B, C3 Ge great areas), big table can be by noting number mode On-board programming, satellite
Framing is passed under remote measurement to carry out according to the big table of telemetry frame.
Design telemetry data packet 1,2,3...... (expansible), each byte content of each packet can be with
On-board programming is carried out by upper pouring functions, length is A (B) or two kinds of C.
As shown in figure 3, telemetry package packet procedures：The every 0.5 second timing acquiring of satellite host computer updates distant
Survey data storage area telemetry.Packet inquiry telemetry data packet table in the big table of telemetry frame,
Taken according to the content of each packet in telemetry data packet table in telemetry memory block after telemetry parameter group bag
Framing.The big table of telemetry frame and telemetry data packet table can be by noting number mode On-board programming, remote measurement number
According to the speed that passes down of bag realized by the number of times repeated in telemetry frame table.When need internal memory download or note
When number is returned, passed under being carried out in telemetry frame subpackage area.
As shown in figure 4, the design of number backward channel is downloaded and noted on internal memory, entered using packet C areas
Row note number is returned to be downloaded with internal memory, and the slow remote measurement of whole star is passed under the design of packet C areas is main.
In summary, the inventive method is realized by way of satellite host computer telemetry parameter centralization of state power distribution
Satellite downlink telemetry dynamic dispatching ability, can pass through up note number during satellite test
Mode, easily improve the biography speed down of institute test system telemetry parameter, more effectively differentiate test system
The state of system, while in satellite failure troubleshooting procedure, remote measurement needed for troubleshooting is joined by way of upper note
Several biography speed down mention limit priority, and optimal telemetering state is provided for the investigation of failure.And can root
According to the in-orbit different phase of satellite, to being passed under different telemetry parameter emphasis, different working modes remote measurement is realized
The ability that emphasis is passed down.The features such as present invention has reasonable scheme, flexibility, strong adaptability.
Although present disclosure is discussed in detail by above preferred embodiment, but it should understanding
Limitation of the present invention is not considered as to the description above.Read above-mentioned in those skilled in the art
After content, a variety of modifications and substitutions for the present invention all will be apparent.Therefore, it is of the invention
Protection domain should be limited to the appended claims.
Claims (5)
1. a kind of satellite telemetry centralization of state power distribution and the implementation of scheduling, it is characterised in that：Satellite it is upper
Machine is collected whole all telemetry parameters of star and stored by bus or telemetry-acquisition equipment, every 0.5 second
The data that regularly take remote measurement renewal, it is ensured that the turnover rate of whole all telemetries of star is 0.5 second/time；
Under the fixed remote measurement area of remote measurement frame format point and the packet telemetry area of the telemetry, packet telemetry area
Telemetry data packet is passed, is divided into 3 parts i.e. packet A areas, packet B areas, packet C areas,
Each part is a packet, and the length relation in 3 packet areas is as follows：2A=2B=C.
2. satellite telemetry centralization of state power distribution according to claim 1 and the implementation of scheduling, its feature
It is：The design of the telemetry data packet is in such a way：
First, each single telemetry parameter of subsystem is summarised in one or more telemetry data packets；
Second, telemetry parameter is summarised in by one or more remote measurements according to the speed demand of whole star telemetry parameter
Packet；
3rd, one or more telemetry data packets are summarised according to the species of telemetry parameter.
3. satellite telemetry centralization of state power distribution according to claim 2 and the implementation of scheduling, its feature
It is：Each telemetry data packet content is by noting number mode On-board programming.
4. the implementation of the satellite telemetry centralization of state power distribution and scheduling according to claim any one of 1-3,
It is characterized in that：Note number is carried out using packet C areas to return and internal memory download.
5. the implementation of the satellite telemetry centralization of state power distribution and scheduling according to claim any one of 1-3,
It is characterized in that：Big table is passed under the telemetry frame, the circulation of 64 frame one is designed as, 3 data are included per frame
Bag is packet A, B, C areas, and big table can be by noting number mode On-board programming.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106688336B true CN106688336B (en) | 2014-11-12 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106470091A (en) * | 2016-09-08 | 2017-03-01 | 上海卫星工程研究所 | The method of telemetering under deep-space spacecraft low bit- rate |
| CN112187384A (en) * | 2020-09-30 | 2021-01-05 | 中国科学院微小卫星创新研究院 | Satellite telemetering scheduling system and method based on multi-channel constraint condition |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106470091A (en) * | 2016-09-08 | 2017-03-01 | 上海卫星工程研究所 | The method of telemetering under deep-space spacecraft low bit- rate |
| CN112187384A (en) * | 2020-09-30 | 2021-01-05 | 中国科学院微小卫星创新研究院 | Satellite telemetering scheduling system and method based on multi-channel constraint condition |
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Addressee: Shanghai Satellite Engineering Research Institute Document name: Notification to Pay the Fees |
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