CN104199324B - Reliable switching method for multi-mode remote measurement - Google Patents
Reliable switching method for multi-mode remote measurement Download PDFInfo
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- CN104199324B CN104199324B CN201410413118.7A CN201410413118A CN104199324B CN 104199324 B CN104199324 B CN 104199324B CN 201410413118 A CN201410413118 A CN 201410413118A CN 104199324 B CN104199324 B CN 104199324B
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Abstract
The invention relates to a reliable switching method for multi-mode remote measurement, and the method comprises the following steps of: defining remote-measurement modes of an aircraft according to remote-measurement demands, triggering remote-measurement mode transition by combining remote control commands with programmed instructions, timely monitoring to the remote-measurement modes of the aircraft, upon difference among the remote-measurement mode transition and the set results of the remote control commands or the programmed instructions, again transmitting the remote-measurement commands or the programmed instructions, and again triggering them to precisely shift the remote-measurement mode, through the method, large-scale data with multiple characteristics can be collected, stored and transmitted, according to the task stage and mode of the aircraft, timely adjusting the remote-measurement mode.
Description
Technical field
The present invention relates to aerospace craft data management system field, more particularly to a kind of multi-modal remote measurement reliably switching
Method.
Background technology
Telemetry parameter on aerospace craft includes unit voltage, unit state, digital quantity, temperature, pressure, mechanics parameter
Deng being the Main Basiss judging aircraft running status.Number guard systems are realize Telemetry Data Acquisition, process and transmission main
Subsystem, major function includes Telemetry Data Acquisition, telemetry compiles frame, telemetry stores, telemetry plays back etc..
Generally using traditional PCM telemetry scheme on the aerospace crafts such as satellite.PCM remote measurement has fixing frame format and compiles
Row, position in remote measurement frame format for every road telemetry parameter keeps constant in whole task phase, and every LUSHEN number has fixing
Sample frequency requires, and does not also substantially change in whole task phase.PCM telemetry is ripe, and data processing scheme is simple,
Reliability is high, is widely used in ripe model.
But it is as increasing of telemetry type and quantity on aerospace craft, the characteristic of telemetry is more complicated,
It is mainly manifested in：1) data capacity increases；2) sample frequency of data is different；3) moment that data produces is not fixed；4)
Different task section has different remote measurements and requires.
Above-mentioned change is put forward higher requirement to telemetry scheme, and the PCM remote measurement with fixing frame format is above-mentioned to solving
There is larger difficulty in problem.
Content of the invention
It is an object of the invention to overcoming the deficiencies in the prior art, provide a kind of multi-modal remote measurement reliability changing method, real
Collection, storage and the transmission of now extensive, many performance datas, and the task phase according to aircraft, mission mode, real-time adjustment
Remote measurement mode.
The above-mentioned purpose of the present invention is achieved by following technical solution：
A kind of multi-modal remote measurement reliability changing method, comprises the following steps：
The first step, the working stage according to aircraft and mission mode, determine remote measurement mode number M, and by each remote measurement
Mode is defined as the set of one group of data source bag, and that is, m-th remote measurement mode is KmThe set of individual data source bag composition, wherein m=1
～M, the K corresponding with mmIt is respectively K1、K2、…、KM, m, KmIt is positive integer；Wherein each data source bag is that had by one group
The data encapsulation composition of same characteristic features, the data source bag after encapsulation indicates to described data characteristicses, and according to data characteristicses
There is corresponding dispatching cycle and priority；
Aircraft, according to the dispatching cycle of data source bag each in remote measurement mode and priority, carries from aircraft receiving data
The data source bag taking, and by the data source bag composition Frame after described extraction, then send described Frame to earth station；
Second step, pass through telecommand, program control command compound mode, remote measurement Mode-switch is triggered, if that is, fly
Row device receives the telecommand of earth station's transmission, then according to telecommand, remote measurement Mode-switch is triggered, if flight
Device receives the program control command of aircraft program control module transmission, then according to program control command, remote measurement Mode-switch is triggered；
3rd step, complete second step remote measurement Mode-switch triggering after, in the telemetry that aircraft receives read
" fixing radio frequency channel " parameter is identified, the remote measurement mode of identification aircraft current time, if described remote measurement mode not in accordance with
Remote measurement mode after the handover trigger of second step, then resend program control command or telemetry command, returns second step operation.
In above-mentioned multi-modal remote measurement reliability changing method, in the first step, aircraft is according to each number in remote measurement mode
According to source bag dispatching cycle and priority, from aircraft receiving data extract data source bag, and by described extract after number
Wrap composition Frame according to source, it is as follows that it implements process：
(a), extract moment t, determine each data source bag meeting schedulable condition dispatching cycle, if that is, mod (t,
Tm,n)=0, then meet schedulable condition, wherein, T the dispatching cycle of the nth data source bag of m-th remote measurement modem,nFor m-th
The dispatching cycle of the nth data source bag of remote measurement mode, mod calculates for remainder, m=1～M, n=1～Km；
(b), according to data source bag priority by high order on earth, what step (a) was determined meets schedulable condition
Each data source bag be ranked up, and will sequence after data source bag composition Frame.
In above-mentioned multi-modal remote measurement reliability changing method, in second step, when using telecommand to remote measurement mode
When switching is triggered, it is as follows that process is realized in concrete triggering：
When aircraft receives the telecommand of earth station's transmission, determine the remote measurement mould that described telecommand is specified
State, if described specified remote measurement mode is different from current telemetry mode, sends instruction triggers remote measurement mode and switches over, will
The remote measurement mode that the remote measurement Mode-switch of aircraft is specified for telecommand at present.
In above-mentioned multi-modal remote measurement reliability changing method, in second step, when using program control command to remote measurement mode
When switching is triggered, it is as follows that process is realized in concrete triggering：
When aircraft receives the program control command of aircraft program control module transmission, determine what described program control command was specified
Remote measurement mode, if described specified remote measurement mode is different from current telemetry mode, sends instruction triggers remote measurement mode and is cut
Change, will aircraft at present the remote measurement mode specified for program control command of remote measurement Mode-switch；And described program control command is carried out
Backup.
In above-mentioned a kind of multi-modal remote measurement reliability changing method, in the third step, resend program control if necessary
Instruction is triggered again to remote measurement Mode-switch, then resend once the program control command backing up in second step.
The present invention compared with prior art has the advantages that：
(1) present invention, according to the working stage of aircraft and mission mode, defines multiple remote measurement mode, wherein each is distant
Survey the set that mode is one group of data source bag, for the remote measurement mode of same definition, the dispatching cycle according to data source bag and excellent
First level is extracted to data source bag, and system design is simple, flexible, thus meeting aircraft in different operating stage and task mould
Remote measurement demand under formula, overcomes the shortcoming that traditional PCM remote measurement can not meet multiple telemetry mode demands, and overcomes tradition
PCM remote measurement complicated shortcoming of system design under time-varying characteristics telemetry mode；
(2) present invention realizes the triggering of remote measurement Mode-switch using telecommand or program control command, and that is, two kinds of instructions all can be real
The triggering of existing remote measurement mode, improves the motility of handover trigger；
(3) present invention, after completing the triggering of remote measurement Mode-switch, reads " fixing in the telemetry that aircraft receives
Radio frequency channel " parameter is identified, the remote measurement mode of identification aircraft current time, if remote measurement Mode-switch result is incorrect,
By resending program control command or telemetry command, remote measurement Mode-switch is triggered again it is ensured that aircraft current time
Remote measurement mode consistent with the remote measurement mode that program control command or telemetry command are specified, the reliability of remote measurement Mode-switch can be improved
Property.
Brief description
Fig. 1 is the remote measurement modal definition schematic diagram of the present invention；
Specific embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings：
Remote measurement mode refers to a kind of general designation of the telemetry mode under particular demands constrain, and different remote measurement mode corresponds to
Different working stages and mission mode, therefore have different data acquisition contents, and that is, the data characteristicses of gathered data are different,
Traditional PCM remote measurement adopt anchor-frame format structure, realize multiple difference remote measurement mode define simultaneously when there is technical difficulty, this
Invention comprehensive utilization AOS agreement provide eight kinds of business, realize the definition of multiple remote measurement mode, be adapted to remote measurement mode with appoint
Business, dynamic change demand in time.
Wherein, AOS agreement includes two kinds of Data Structures, respectively data source pack arrangement data frame structure, wherein：
Data source pack arrangement is a kind of data structure of application-orientation, and different data source bags has different data
Feature, wherein, data characteristicses include data type, message transmission rate, data length, data content, the form of data source bag
As shown in table 1：
The data source bag form of application-orientation in table 1 AOS agreement
Data frame structure is a kind of data structure towards transmitting procedure, and wherein, data frame structure passes through pseudo channel mark
Know the multiplexing realized to Same Physical channel, the form of Frame is as shown in table 2.
Towards the data frame format of transmitting procedure in table 2 AOS agreement
The multi-modal remote measurement reliability changing method of the present invention, comprises the following steps：
The first step, the working stage according to aircraft and mission mode, determine remote measurement mode number M, and according to aircraft
Remote measurement under current working phase and mission mode requires, and each remote measurement mode is defined as the set of one group of data source bag,
I.e. m-th remote measurement mode is KmThe set of individual data source bag composition, this data source bag set can meet aircraft in current work
Make the remote measurement demand under stage and mission mode, wherein m=1～M, the K corresponding with mmIt is respectively K1、K2、…、KM, m, KmAll
For positive integer.
Wherein, data source bag is made up of one group of data encapsulation with same characteristic features, and the data source bag after encapsulation is to institute
State data characteristicses to be indicated, and according to data characteristicses, there is corresponding dispatching cycle and priority；Wherein encapsulation can be according to AOS
The data source bag form of agreement is carried out.
Under different mission phases and mission mode, the tub of tissue of the data that takes remote measurement according to different remote measurement mode
Reason, that is, aircraft according to the dispatching cycle of data source bag each in remote measurement mode and priority, extract from aircraft receiving data
Data source bag, and by the data source bag composition Frame after described extraction, and send described Frame to earth station, wherein,
The extraction of data source bag and framing to implement process as follows：
(a), extract moment t, determine each data source bag meeting schedulable condition dispatching cycle, if that is, mod (t,
Tm,n)=0, then meet schedulable condition, wherein, T the dispatching cycle of the nth data source bag of m-th remote measurement modem,nFor m-th
The dispatching cycle of the nth data source bag of remote measurement mode, mod calculates for remainder, m=1～M, n=1～Km；
(b), according to data source bag priority by high order on earth, what step (b) was determined meets schedulable condition
Each data source bag be ranked up, data source bag after sequence composition Frame.
Remote measurement modal definition schematic diagram as shown in Figure 1, system is according to the working stage of three kinds of aircraft and mission mode
Define 3 remote measurement mode, wherein：
The remote measurement mode 1 of mission phase 1 and mission mode 1 definition includes two data source bags, respectively data source bag 1 He
Data source bag 2；
The remote measurement mode 2 of mission phase 2 and mission mode 2 definition includes 3 data source bags, respectively data source bag 3, number
According to source bag 4 data source bag 5；
The remote measurement mode 3 of mission phase 3 and mission mode 3 definition includes 3 data source bags, respectively data source bag 6, number
According to source bag 7 data source bag 8；
Wherein the priority of data source bag 1～8, dispatching cycle are respectively R1～R8, T1～T8.
Second step, pass through telecommand, program control command compound mode, remote measurement Mode-switch is triggered, if connect
Receive telecommand, then according to telecommand, remote measurement Mode-switch is triggered, if receiving program control command, according to journey
Control instruction triggers to remote measurement Mode-switch, its handover trigger to implement process as follows：
When aircraft receives the telecommand of earth station's transmission, described telecommand is analyzed, is instructed
Corresponding aircraft working stage and task status, so that it is determined that going out the remote measurement mode that telecommand is specified, if described specify
Remote measurement mode is different from current telemetry mode, then send instruction triggers remote measurement mode and switch over, will aircraft at present distant
Survey the remote measurement mode that Mode-switch is specified for telecommand.
When aircraft receives the program control command of aircraft program control module transmission, described program control command is analyzed,
Obtain instructing corresponding aircraft working stage and task status, so that it is determined that going out the remote measurement mode that described program control command is specified,
If described specified remote measurement mode is different from current telemetry mode, sends instruction triggers remote measurement mode and switch over, will mesh
The remote measurement mode that the remote measurement Mode-switch of front aircraft is specified for program control command；And described program control command is backed up.
3rd step, complete second step remote measurement Mode-switch triggering after, in the telemetry that aircraft receives read
" fixing radio frequency channel " parameter is identified, the remote measurement mode of identification aircraft current time, if described remote measurement mode not in accordance with
Remote measurement mode after the handover trigger of second step, then resend program control command or telemetry command, returns second step operation.This step
Operation is present to ensure that the remote measurement mode of aircraft current time is consistent with the remote measurement mode that program control command or telemetry command are specified,
The reliability of remote measurement Mode-switch can be improved, wherein：
Resend program control command if necessary remote measurement Mode-switch is triggered again, then by backup in second step
Program control command resends once；
Resend telecommand if necessary remote measurement Mode-switch is triggered again, then send instructions to earth station
Ask the telecommand before resending.
Embodiment：
(1) working stage according to aircraft and mission mode, determines that aircraft has 2 remote measurement mode, respectively
Remote measurement mode A and remote measurement mode B, i.e. M=2；
Wherein, remote measurement mode A has 2 data source bags, respectively data source bag C1 data source bag C2；Remote measurement mode B has 3
Individual data source bag, respectively data source bag C3, data source bag C4 data source bag C5；The data source bag of above remote measurement mode corresponds to
Priority and dispatching cycle as shown in table 3：
The corresponding priority of data source bag of remote measurement mode and dispatching cycle in table 3 embodiment
According to the definition to remote measurement mode for the present invention, in moment t=0.5s, 1s, 1.5s, 2s and 2.5s, each remote measurement mould
The data source bag that state is extracted is as shown in table 4：
| Moment | Remote measurement mode A | Remote measurement mode B |
| 0.5s | { data source bag C1 } | { data source bag C4 } |
| 1s | { data source bag C2, data source bag C1 } | { data source bag C4 } |
| 1.5s | { data source bag C1 } | { data source bag C3, data source bag C4 } |
| 2s | { data source bag C2, data source bag C1 } | { data source bag C5, data source bag C3, data source bag C4 } |
| 2.5s | { data source bag C1 } | { data source bag C4 } |
(2) during t=1～2000s, the working condition of aircraft is as follows：
In t=1s, the remote measurement mode of aircraft is remote measurement mode A；
Receive telecommand in t=300s, this telecommand is analyzed, analysis result shows the work of aircraft
Make the stage or working condition changes, need remote measurement Mode-switch to remote measurement mode B；
Receive program control command in t=1800s, this program control command is analyzed, analysis result shows aircraft
Working stage or working condition change, and need remote measurement Mode-switch to remote measurement mode A；
According to the multi-modal remote measurement reliability changing method of the present invention, in t=300s, need according to telecommand to remote measurement
Mode-switch is triggered, that is, send instruction and by remote measurement mode A, remote measurement mode is switched to remote measurement mode B；In t=1800s,
Need according to program control command, remote measurement Mode-switch to be triggered, that is, send instruction and remote measurement mode is switched to by remote measurement mode B
Remote measurement mode A, and preserve this program control command；
(3) after completing the remote measurement Mode-switch of t=300s, read " fixing in the telemetry that aircraft receives
Radio frequency channel " parameter is identified, the remote measurement mode of identification aircraft current time, if described remote measurement mode is remote measurement mode A, that is,
According to the handover trigger of step (2), aircraft is not correctly completed remote measurement Mode-switch, then earth station resends telecommand,
Return to step (2) carries out handover trigger again, and the modal idenlification that takes remote measurement again, until remote measurement Mode-switch is B；
" fixing, after completing the remote measurement Mode-switch of t=1800s, reading in the telemetry that aircraft receives
Radio frequency channel " parameter is identified, the remote measurement mode of identification aircraft current time, if described remote measurement mode is remote measurement mode B, that is,
According to the handover trigger of step (2), aircraft is not correctly completed remote measurement Mode-switch, then aircraft resends the remote control of backup
Instruction, return to step (2) carries out handover trigger again, and the modal idenlification that takes remote measurement again, until remote measurement Mode-switch is A.
The above, the only optimal specific embodiment of the present invention, but protection scope of the present invention is not limited thereto,
Any those familiar with the art the invention discloses technical scope in, the change or replacement that can readily occur in,
All should be included within the scope of the present invention.
The content not being described in detail in description of the invention belongs to the known technology of professional and technical personnel in the field.
Claims (4)
1. a kind of multi-modal remote measurement reliability changing method is it is characterised in that comprise the following steps：
The first step, the working stage according to aircraft and mission mode, determine remote measurement mode number M, and by each remote measurement mode
It is defined as the set of one group of data source bag, that is, m-th remote measurement mode is KmThe set of individual data source bag composition, wherein m=1～M,
The K corresponding with mmIt is respectively K1、K2、…、KM, m, KmIt is positive integer；Wherein each data source bag be had by one group identical
The data encapsulation composition of feature, the data source bag after encapsulation indicates to described data characteristicses, and has according to data characteristicses
Corresponding dispatching cycle and priority；
Aircraft, according to the dispatching cycle of data source bag each in remote measurement mode and priority, extracts from aircraft receiving data
Data source bag, and by the data source bag composition Frame after described extraction, implement process as follows：
(a), extract moment t, determine each data source bag meeting schedulable condition dispatching cycle, if i.e. mod (t, Tm,n)=
0, then meet schedulable condition, wherein, T the dispatching cycle of the nth data source bag of m-th remote measurement modem,nFor m-th remote measurement mould
The dispatching cycle of the nth data source bag of state, mod calculates for remainder, m=1～M, n=1～Km；
(b), according to data source bag priority by high order on earth, what step (a) was determined meets each of schedulable condition
Data source bag is ranked up, and the data source bag after sequence is formed Frame；
Then, send described Frame to earth station；
Second step, pass through telecommand, program control command compound mode, remote measurement Mode-switch is triggered, if i.e. aircraft
Receive the telecommand of earth station's transmission, then according to telecommand, remote measurement Mode-switch is triggered, if aircraft connects
Receive the program control command of aircraft program control module transmission, then according to program control command, remote measurement Mode-switch is triggered；
3rd step, complete the remote measurement Mode-switch triggering of second step after, read " fixing in the telemetry that aircraft receives
Radio frequency channel " parameter is identified, and the remote measurement mode of identification aircraft current time, if described remote measurement mode is not in accordance with second step
Handover trigger after remote measurement mode, then resend program control command or telemetry command, return second step operation.
2. a kind of multi-modal remote measurement reliability changing method according to claim 1 it is characterised in that：In second step, when
When remote measurement Mode-switch being triggered using telecommand, it is as follows that process is realized in concrete triggering：
When aircraft receives the telecommand of earth station's transmission, determine the remote measurement mode that described telecommand is specified, such as
Really described specified remote measurement mode is different from current telemetry mode, then send instruction triggers remote measurement mode and switch over, will be current
The remote measurement mode that the remote measurement Mode-switch of aircraft is specified for telecommand.
3. a kind of multi-modal remote measurement reliability changing method according to claim 1 it is characterised in that：In second step, when
When remote measurement Mode-switch being triggered using program control command, it is as follows that process is realized in concrete triggering：
When aircraft receives the program control command of aircraft program control module transmission, determine the remote measurement that described program control command is specified
Mode, if described specified remote measurement mode is different from current telemetry mode, sends instruction triggers remote measurement mode and switches over, that is,
The remote measurement mode that the remote measurement Mode-switch of current flight device is specified for program control command；And described program control command is backed up.
4. a kind of multi-modal remote measurement reliability changing method according to claim 1 it is characterised in that：In the third step, such as
Fruit needs to resend program control command and remote measurement Mode-switch is triggered again, then by the program control command backing up in second step weight
New transmission is once.
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104765964B (en) * | 2015-04-15 | 2017-12-08 | 北京空间飞行器总体设计部 | A kind of space environment sensitive parameter screening technique |
| CN105187117B (en) * | 2015-08-12 | 2018-04-10 | 莱诺斯科技（北京）股份有限公司 | A kind of satellite telemetry solution code system |
| CN107317769A (en) * | 2017-05-25 | 2017-11-03 | 北京空间飞行器总体设计部 | A kind of source bag dispatching method based on orderly priority query |
| CN108599835A (en) * | 2018-05-08 | 2018-09-28 | 上海微小卫星工程中心 | A kind of remote-controlled customized general packet telemetry technology |
| CN111158290B (en) * | 2019-12-31 | 2020-11-03 | 埃游科技（深圳）有限公司 | Multi-modal control method and device for unmanned equipment |
| CN113813615B (en) * | 2021-09-27 | 2023-08-04 | 北京理工大学重庆创新中心 | Air-ground amphibious equipment and mode switching system and method thereof |
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