CN107633049A - Flight positional information playback system and back method - Google Patents
Flight positional information playback system and back method Download PDFInfo
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- CN107633049A CN107633049A CN201710839749.9A CN201710839749A CN107633049A CN 107633049 A CN107633049 A CN 107633049A CN 201710839749 A CN201710839749 A CN 201710839749A CN 107633049 A CN107633049 A CN 107633049A
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Abstract
A kind of flight positional information playback system and back method.System includes database, data processing module, playback controls terminal, playback display terminal；Data processing module is connected with database, playback controls terminal and playback display terminal respectively.Advantage of the present invention：(a) database purchase flight positional information is used, is playback condition data item configuration index, improves the inquiry velocity of playback of data, realizes the real-time of data readback；(b) effective information during playback initialization is shown, only retains and show the Flight Information for the flight for having location updating in specified time, includes the historical information of flight, deletes the Flight Information of the flight without location updating in specified time；(c) adaptive time slice formula playback, using play back it is data cached read on a time period by the way of, greatly reduce playback controls terminal data caching pressure, time segment length adaptively adjusts with playback F.F. or slow-motion, has ensured the fluency of playback.
Description
Technical field
The present invention relates to a kind of flight positional information playback system and back method, and it is used for playback and is stored in database
History flight positional information.
Background technology
At present, the monitoring in Civil Aviation System to aircraft position information has a various ways, the main monitoring in air traffic control system
Once radar, secondary radar and the ADS-B for promoting implementation, airline are mainly offered means using ACARS POS
Realize the real-time tracking monitoring of flight positional information.The record and playback system of flight monitoring data can be to these flight positions
Information carries out recording preservation and playback.The playback of flight positional information can facilitate the relevant personnel to carry out more flight operation situation
Add and intuitively analyze；Meanwhile when airborne vehicle special circumstances occurs in the process of running, it can help to analyze by playback system
There is the reason for special circumstances, convenient investigation.
Now, the record of flight positional information and playback are typically realized using traditional recorder in Civil Aviation System, due to
Data are to store in a hard disk in the form of a file, therefore the reading of file content needs to take a substantial amount of time during playback, from
And cause the speed for playing back F.F. limited, also it is unfavorable for selective playback, such as the positional information of certain several flight is only played back, or
Flight from some field takeoff etc..It is different from traditional video or audio playback, the playback concern flight of flight positional information
Historical position information continuity, be exactly play back initialize when, the relevant flight before playing back initial time is gone through
History positional information is shown in display terminal is played back.Meanwhile the acquisition of playback of data needs the time, using first obtaining
Playback of data after data, easily cause occur Caton phenomenon in replayed section, thus should be avoided using corresponding measure it is unnecessary
Interim card.
The content of the invention
In order to solve the above problems, it is an object of the invention to provide a kind of flight positional information playback system and playback side
Method.
In order to achieve the above object, flight positional information playback system provided by the invention includes：Database, data processing
Module, playback controls terminal, playback display terminal；Wherein：Data processing module respectively with database, playback controls terminal and return
Display terminal is put to be connected.
Database 1 is using the total relation type database including SQL Server, MySQL, Oracle.
The back method of flight positional information playback system provided by the invention includes playback initial phase and Double buffer
Playback phase；Described playback initial phase includes the following steps performed in order：
Step 1: obtain the S101 ranks of the flight data with location updating in specified time before playback initial time
Section：After data processing module receives the play-back command of playback controls terminal, obtained from database before playing back initial time
Flight data with location updating in specified time, wherein specified time take 2 times of flight updating location information cycle, flight
The updating location information cycle represents that a flight issues the time cycle of positional information；
Step 2: obtain the S102 stages of the continuous historical position data of the flight with location updating：According to S101 ranks
The flight data with location updating that section obtains, the continuous historical position datas of these flights is obtained from database, i.e., from
Start from the playback recent flight departure time of initial time to all positions of these flights between playback initial time
Update the data；
Step 3: the S103 stages that continuous history flight position data is shown：The flight that the S102 stages are obtained it is continuous
Historical position data is sent to playback display terminal and shown by playback display terminal；
Described Double buffer playback phase includes the following steps performed in order：
Step 1: the playback duration of the continuous historical position data of above-mentioned flight is divided into some playback duration sections, and
Create playback caching and download the S201 stages of caching：First by the playback duration of the continuous historical position data of above-mentioned flight
tstart—tendTemporally length T is divided into some playback duration sections at equal intervals, wherein：tstartTo play back initial time, tendTo return
Put cut-off time, PiFor current playback time section, Pi+1For next playback duration section；Then create playback caching and download slow
Deposit, wherein playback caching is used to deposit the flight historical position data in current playback time section, downloads caching and be used under depositing
Flight historical position data in one period to be played back；
Step 2: the data in first period are downloaded to the S202 stages of playback caching：During playback, first by data
The flight historical position data that processing module is downloaded from database in first playback duration section caches to playback；
Step 3: start playback of data and download the data in next playback duration section to the S203 ranks for downloading caching
Section：Data processing module obtains flight historical position data and is sent to according to playback speed set in advance in being cached from playback
Display terminal is played back, is played back afterwards by playback display terminal, the flight played back is deleted in then being cached from playback and is gone through
History position data；Meanwhile the download of the flight historical position data in next playback duration section is performed parallel, and obtained downloading
Flight historical position data deposit download caching in；
Step 4: judge the playback data cached S204 stages for whether playing back end：Judging the data in playback caching is
No played back finishes, if it is judged that being "Yes", then into the next step S205 stages；Otherwise this step is repeated；
Step 5: judge that the data in next playback duration section download the S205 stages whether finished：Judge next
Whether the download of the flight historical position data in playback duration section finishes, if it is judged that being "Yes", then enters in next step
The S206 stages；Otherwise this step is repeated；
Step 6: the data deposit playback caching that will download caching, empties the S206 stages for downloading caching：Cached downloading
Flight historical position data deposit playback caching in the next playback duration section next to be played back of middle download, while clearly
Sky downloads the flight historical position data in caching, and standard is done to download the flight historical position data in the subsequent playback period
It is standby；
Step 7: judging whether whole flight historical position datas play back the S207 stages finished：Judge in playback caching
Flight historical position data whether be empty, if it is judged that be "Yes", illustrate playback caching and download cache in without boat
Class's historical position data, playback terminate；Otherwise the S203 stages are returned in next step.
The advantages of flight positional information provided by the invention record and back method is：(a) database purchase flight is used
Positional information, it is playback condition data item configuration index, improves the inquiry velocity of playback of data, realize the real-time of data readback
Property；(b) effective information during playback initialization is shown, only retains and show the flight for the flight for having location updating in specified time
Information, include the historical information of flight, delete the Flight Information of the flight without location updating in specified time；(c) adaptively
Time slice formula play back, using play back it is data cached read on a time period by the way of, greatly reduce playback controls terminal data delay
Pressure is deposited, time segment length adaptively adjusts with playback F.F. or slow-motion, has ensured the fluency of playback.
Brief description of the drawings
Fig. 1 is flight positional information playback system structural representation provided by the invention；
Fig. 2 is playback initial phase flow chart in flight positional information back method provided by the invention；
Fig. 3 is that playback duration section sets process schematic in flight positional information back method provided by the invention；
Fig. 4 is Double buffer playback phase flow chart in flight positional information back method provided by the invention.
Embodiment
Below in conjunction with the accompanying drawings with specific embodiment to flight positional information playback system provided by the invention and back method
It is described in detail.
As shown in figure 1, flight positional information playback system provided by the invention includes：Database 1, data processing module 2,
Playback controls terminal 3, playback display terminal 4；Wherein：Data processing module 2 respectively with database 1, playback controls terminal 3 and return
Display terminal 4 is put to be connected；Described data processing module 2 receives primary radar, secondary radar, ADS-B, ACARS POS reports
Then these data are merged by flight position data inside, and to be pre-established in unified structure deposit database 1
Corresponding data table in；Described tables of data is established by cycle regular hour, to avoid all data from existing in one big table,
So as to extend the data query time；It is the data item configuration index related to playback condition when establishing tables of data, to improve playback
The acquisition speed of data；Wherein, database 1 can use the total relation type number including SQL Server, MySQL, Oracle
According to storehouse；Data processing module 2 receives the play-back command of playback controls terminal 3, and the data for needing to play back are obtained from database 1,
And the data that will be played back are sent to playback display terminal 4 by specified speed and played back；Meanwhile data processing module 2 connects
The instruction including the pause, beginning, F.F., slow-motion that playback controls terminal 3 sends is received, with the replayed section that control is overall.
Include playback initial phase and Double buffer playback using the back method of above-mentioned flight positional information playback system
Stage；As shown in Fig. 2 described playback initial phase includes the following steps performed in order：
Step 1: obtain the S101 ranks of the flight data with location updating in specified time before playback initial time
Section：After data processing module 2 receives the play-back command of playback controls terminal 3, from database 1 obtain playback initial time it
Flight data with location updating in preceding specified time, wherein specified time take 2 times of flight updating location information cycle, boat
Class's updating location information cycle represents that a flight issues the time cycle of positional information；
Step 2: obtain the S102 stages of the continuous historical position data of the flight with location updating：According to S101 ranks
The flight data with location updating that section obtains, the continuous historical position datas of these flights is obtained from database 1, i.e., from
Start from the playback recent flight departure time of initial time to all positions of these flights between playback initial time
Update the data；
Step 3: the S103 stages that continuous history flight position data is shown：The flight that the S102 stages are obtained it is continuous
Historical position data is sent to playback display terminal 4 and shown by playback display terminal 4.
As shown in figure 4, described Double buffer playback phase includes the following steps performed in order：
Step 1: the playback duration of the continuous historical position data of above-mentioned flight is divided into some playback duration sections, and
Create playback caching and download the S201 stages of caching：As shown in figure 3, first by the continuous historical position data of above-mentioned flight
Playback duration tstart—tendLength T is divided into some playback duration sections at equal intervals on a time period, wherein：tstartWhen being originated for playback
Carve, tendTo play back cut-off time, PiFor current playback time section, Pi+1For next playback duration section；Then it is slow to create playback
Caching is deposited and downloaded, wherein playback caching is used to deposit the flight historical position data in current playback time section, downloads caching
For depositing the flight historical position data in next period to be played back；
Step 2: the data in first period are downloaded to the S202 stages of playback caching：During playback, first by data
The flight historical position data that processing module 2 is downloaded from database 1 in first playback duration section caches to playback；
Step 3: start playback of data and download the data in next playback duration section to the S203 ranks for downloading caching
Section：Data processing module 2 obtains flight historical position data and sent according to playback speed set in advance in being cached from playback
Playback display terminal 4 is given, is played back afterwards by playback display terminal 4, the boat played back is deleted in then being cached from playback
Class's historical position data；Meanwhile the download of the flight historical position data in next playback duration section is performed parallel, and will download
The flight historical position data deposit of acquisition is downloaded in caching；
Step 4: judge the playback data cached S204 stages for whether playing back end：Judging the data in playback caching is
No played back finishes, if it is judged that being "Yes", then into the next step S205 stages；Otherwise this step is repeated；
Step 5: judge that the data in next playback duration section download the S205 stages whether finished：Judge next
Whether the download of the flight historical position data in playback duration section finishes, if it is judged that being "Yes", then enters in next step
The S206 stages；Otherwise this step is repeated；
Step 6: the data deposit playback caching that will download caching, empties the S206 stages for downloading caching：Cached downloading
Flight historical position data deposit playback caching in the next playback duration section next to be played back of middle download, while clearly
Sky downloads the flight historical position data in caching, and standard is done to download the flight historical position data in the subsequent playback period
It is standby；
Step 7: judging whether whole flight historical position datas play back the S207 stages finished：Judge in playback caching
Flight historical position data whether be empty, if it is judged that be "Yes", illustrate playback caching and download cache in without boat
Class's historical position data, playback terminate；Otherwise the S203 stages are returned in next step.
Playback duration segment length T in described Double buffer playback phase adaptively adjusts according to playback speed, adjusts
Adjusting method is：The playback speed specified according to playback controls terminal 3, the playback duration segment length of equal proportion renewal segmented playback
T, if playback speed is n times of normal speed, then playback duration segment length T is changed into nT, to avoid the data volume once played back
Demand is more than the data volume of playback caching, ensures the fluency of playback.
Claims (3)
- A kind of 1. flight positional information playback system, it is characterised in that：Described flight positional information playback system includes：Data Storehouse (1), data processing module (2), playback controls terminal (3), playback display terminal (4)；Wherein：Data processing module (2) point It is not connected with database (1), playback controls terminal (3) and playback display terminal (4).
- 2. flight positional information playback system according to claim 1, it is characterised in that：Database (1) uses SQL Total relation type database including Server, MySQL, Oracle.
- A kind of 3. back method of flight positional information playback system using described in claim 1, it is characterised in that：Described Back method includes playback initial phase and Double buffer playback phase；Described playback initial phase includes performing in order The following steps：Step 1: obtain the S101 stages of the flight data with location updating in specified time before playback initial time：Number After receiving the play-back command of playback controls terminal (3) according to processing module (2), playback initial time is obtained from database (1) Flight data with location updating in specified time before, wherein specified time take 2 times of flight updating location information cycle, The flight updating location information cycle represents that a flight issues the time cycle of positional information；Step 2: obtain the S102 stages of the continuous historical position data of the flight with location updating：Obtained according to the S101 stages The flight data with location updating taken, the continuous historical position data of these flights is obtained from the database (1), i.e., from from The playback recent flight departure time of initial time starts to all positions of these flights between playback initial time more New data；Step 3: the S103 stages that continuous history flight position data is shown：The continuous history for the flight that the S102 stages are obtained Position data is sent to playback display terminal (4) and shown by playback display terminal (4)；Described Double buffer playback phase includes the following steps performed in order：Step 1: the playback duration of the continuous historical position data of above-mentioned flight is divided into some playback duration sections, and create Playback caching and the S201 stages for downloading caching：First by the playback duration t of the continuous historical position data of above-mentioned flightstart— tendTemporally length T is divided into some playback duration sections at equal intervals, wherein：tstartTo play back initial time, tendEnd for playback Moment, PiFor current playback time section, Pi+1For next playback duration section；Then create playback caching and download caching, wherein Playback caching is used to deposit flight historical position data in current playback time section, and downloading caching and being used to depositing next will return Flight historical position data in the period put；Step 2: the data in first period are downloaded to the S202 stages of playback caching：During playback, first by data processing Module (2) caches from the flight historical position data downloaded in database (1) in first playback duration section to playback；Step 3: start playback of data and download the data in next playback duration section to the S203 stages for downloading caching：Number Flight historical position data is obtained in being cached according to processing module (2) from playback and is sent according to playback speed set in advance and is given back to Display terminal (4) is put, is played back afterwards by playback display terminal (4), the boat played back is deleted in then being cached from playback Class's historical position data；Meanwhile the download of the flight historical position data in next playback duration section is performed parallel, and will download The flight historical position data deposit of acquisition is downloaded in caching；Step 4: judge the playback data cached S204 stages for whether playing back end：Judge playback caching in data whether Finished through playback, if it is judged that being "Yes", then into the next step S205 stages；Otherwise this step is repeated；Step 5: judge that the data in next playback duration section download the S205 stages whether finished：Judge next playback Whether the download of the flight historical position data in the period finishes, if it is judged that being "Yes", then into next step S206 Stage；Otherwise this step is repeated；Step 6: the data deposit playback caching that will download caching, empties the S206 stages for downloading caching：Under downloading in caching Flight historical position data deposit playback caching in the next playback duration section next to be played back carried, while empty down The flight historical position data in caching is carried, is prepared to download the flight historical position data in the subsequent playback period；Step 7: judging whether whole flight historical position datas play back the S207 stages finished：Judge the boat in playback caching Whether class's historical position data is empty, if it is judged that being "Yes", illustrates playback caching and download to go through without flight in caching History position data, playback terminate；Otherwise the S203 stages are returned in next step.
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| CN109343368A (en) * | 2018-09-21 | 2019-02-15 | 南京国电南自维美德自动化有限公司 | Real-time control system panoramic view data with buffering recurs system and method online |
| CN109523836A (en) * | 2018-10-29 | 2019-03-26 | 中国航空无线电电子研究所 | A kind of unmanned plane aviation management access General Platform |
| CN109710707A (en) * | 2018-12-06 | 2019-05-03 | 北斗天地股份有限公司 | A kind of method and device of big data trace playback |
| CN110009545A (en) * | 2019-03-19 | 2019-07-12 | 中国民航大学 | A kind of flight location information parallelization fusion method based on multi-data source |
| CN110673807A (en) * | 2019-08-20 | 2020-01-10 | 华为技术有限公司 | Data display method, terminal and data display system |
| CN110751858A (en) * | 2019-10-16 | 2020-02-04 | 中国民航大学 | Multi-element operation information correlation method suitable for abnormal status information of continuous flight |
| CN112463766A (en) * | 2020-12-08 | 2021-03-09 | 卡斯柯信号有限公司 | Train information recording, reading and playback method based on high-speed read-write database |
| CN114842679A (en) * | 2022-04-20 | 2022-08-02 | 中国民用航空总局第二研究所 | Recording and playback method and system for airport scene track data |
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| CN110751858A (en) * | 2019-10-16 | 2020-02-04 | 中国民航大学 | Multi-element operation information correlation method suitable for abnormal status information of continuous flight |
| CN110751858B (en) * | 2019-10-16 | 2021-09-07 | 中国民航大学 | Multi-element operation information correlation method suitable for abnormal status information of continuous flight |
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| CN112463766A (en) * | 2020-12-08 | 2021-03-09 | 卡斯柯信号有限公司 | Train information recording, reading and playback method based on high-speed read-write database |
| CN114842679A (en) * | 2022-04-20 | 2022-08-02 | 中国民用航空总局第二研究所 | Recording and playback method and system for airport scene track data |
| CN114842679B (en) * | 2022-04-20 | 2023-03-03 | 中国民用航空总局第二研究所 | Recording and playback method and system for airport scene track data |
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