CN101692668A - Device and method for automatically downloading, resolving and storing aviation meteorological data - Google Patents
Device and method for automatically downloading, resolving and storing aviation meteorological data Download PDFInfo
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Abstract
The invention discloses a device and a method for automatically downloading, resolving and storing aviation meteorological data. The device comprises a remote transmission module, a message resolving and data storing module, a multi-thread managing module, a connection fault diagnosing and eliminating module, a history data managing module and a user interface managing module, wherein the remote transmission module downloads meteorological data files from an FTP server of a meteorological center; the message resolving and data storing module resolves meteorological message data and stores the meteorological message data in a corresponding table of a database; the multi-thread managing module establishes and manages a downloading thread and a resolving thread according to the setting of a user to synchronize the threads; the connection fault diagnosing and eliminating module automatically diagnoses the validity of the connection of the device with the FTP server and a database server at certain times, and starts corresponding fault processing mechanisms after a fault occurs; the history data managing module automatically clears overtime history data at certain times according to the setting of the user; and the user interface managing module carries out the interaction between the device and the user. The device realizes the purposes of automatically downloading, resolving and storing the aviation meteorological data from a data source to a destination terminal, and makes sufficient preparation for back-end application programs.
Description
Technical field
The present invention relates to the device and method that a kind of aviation meteorological data is downloaded automatically, resolved and stores, especially based on the device and method of the real-time Transmission of the classification meteorological data of FTP (File Transfer Protocol, file transfer protocol (FTP)).
Background technology
Aviation is meteorological as the key factor that influences air traffic security of operation and operational efficiency, obtains the attention of civil aviaton's air traffic control service always.Yet aviation meteorological data is of a great variety, the data format disunity, and data source is inconsistent, causes the pattern of traditional multisystem independent process, video data to cause very big inconvenience for air traffic controller's work, has a strong impact on controller's operating efficiency.
The drawback of traditional mode for a change, China in Beijing, Shanghai, Guangzhou three big AREA CONTROL CRNTREs built integrated information and handled and display system, realized integration and integrated processing to data messages such as aviation meteorology, navigational intelligences.This system builds up the operating efficiency that has significantly improved the controller, has ensured air traffic safety.Aviation meteorological data is downloaded automatically, parsing and storage device are handled as integrated information and an important component part of display system, has realized the effective transfer of data from the RSMC to the terminal applies.Simultaneously, this device carries out real time parsing to meteorological message data, has carried out sufficient data for the display system of rear end and has prepared.
Summary of the invention
The technical problem to be solved in the present invention has provided a kind ofly downloads, resolves aviation meteorological data according to standard criterion from RSMC automatically, and according to data category storage respectively in database, for the application program of rear end is carried out the device that aviation meteorological data that data prepare is downloaded automatically, resolved and stores.
Technical scheme of the present invention is: the device that this aviation meteorological data is downloaded automatically, resolved and stores comprises the remote transmission module, and it is from RSMC's ftp server carrier gas image data file up and down; Packet parsing and data memory module, it is resolved and stores in the corresponding table of database meteorological message data; Multi-thread managing module, it is provided with according to the user and creates and managing downloading of threads and parsing thread, makes cross-thread synchronous; Connect failure diagnosis and get rid of module, the validity that its self-timing ground this device of diagnosis is connected with ftp server and database server, and in the corresponding failure handling mechanisms of fault generation back startup; The historical data management module, it is provided with self-timing ground according to the user and removes expired historical data; The user interface management module, it carries out the mutual of this device and user.
The method that the present invention also provides a kind of aviation meteorological data to download automatically, resolve and store, its technical scheme is: this method is based on the classification meteorological data live transmission method of File Transfer Protocol, wherein the data source end is provided according to the type of meteorological data by the file of the some FTP of providing services, data terminal on local file system, create two groups with ftp server catalogue file one to one, one group is used to store the temporary file of downloading successfully but not resolving as yet, and one group is used to store the file of having resolved as data backup; This method may further comprise the steps: (1) is creating data file in corresponding FTP service folder when the data source end has when new data generate; (2) data terminal regularly travels through all FTP service folder, if do not find file then finish, otherwise changes step (3); (3) deposit under the file of temporary file to local correspondence from copied files on the ftp server, and after copy finishes, the corresponding document on the deletion FTP, always up-to-date to guarantee the file on the ftp server; (4) title of temporary file of copy is verified by rule, if the standard of not meeting then delete; (5) temporary file is resolved, and with the storage of resolving to database; (6) after temporary file is resolved, it is trimmed to the backup data file folder from the file of depositing temporary file.
Device of the present invention has been realized automatic download, parsing, the storage of aviation meteorological data from the data source to the destination, for the application program of rear end has been carried out sufficient preparation.Method of the present invention uses File Transfer Protocol to finish the classifying downloaded of aviation meteorological data, according to standard criterion the data file is carried out verification and parsing, and the storage of the classification in database.
Description of drawings
Fig. 1 is the functional block diagram of device of the present invention;
Fig. 2 is the functional block diagram of remote transmission module;
Fig. 3 is the functional block diagram of packet parsing and data memory module;
Fig. 4 is the functional block diagram of multi-thread managing module;
Fig. 5 is the functional block diagram of user interface management module;
Fig. 6 is for connecting failure diagnosis and the functional block diagram of getting rid of module;
Fig. 7 is the functional block diagram of historical data management module;
The flow chart that Fig. 8 downloads for data file;
The flow chart that Fig. 9 handles for message data;
Figure 10 is the flow chart of message document analysis;
Figure 11 is the sub-process figure of message document analysis;
The flow chart that Figure 12 handles for the database stale data.
Embodiment
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Fig. 1 is the functional block diagram of device of the present invention, and device comprises following 6 modules: the remote transmission module is used for from RSMC's ftp server carrier gas image data file up and down; Packet parsing and data memory module are used for the corresponding table of database is resolved and stored into to meteorological message data; Multi-thread managing module is provided with establishment and managing downloading of threads and parsing thread according to the user, realizes that cross-thread is synchronous; The user interface management module is used for the mutual of implement device and user; Connect failure diagnosis and get rid of module, be used for the validity that self-timing ground diagnostic device is connected with ftp server and database server, and after fault takes place, start corresponding failure handling mechanisms; And the historical data management module, according to the user self-timing ground is set and removes expired historical data.
Fig. 2 is the functional block diagram of remote transmission module, comprises two submodules:
The connection management unit, it connects parameter configuration and creates the FTP connecting object according to this configuration by the FTP that subscriber interface module receives the user, attempts connecting ftp server, after the success this object is offered backend application; This unit also on local file system, create two groups with ftp server catalogue file one to one, one group is used to store and downloads successfully but the temporary file of parsing not as yet, one group is used to store the file of having resolved as data backup;
The data download unit, it is provided with regularly according to the user folder of the All Files under the assigned catalogue on the ftp server is traveled through, if find that file is arranged, then deposits under the file of temporary file to local correspondence from copied files on the ftp server.After copy finishes, the corresponding document on the deletion FTP.This unit verifies to the title of temporary file according to the given file designation rule of RSMC that also follow-up dissection process is not carried out in directly deletion if title meets standard.
Fig. 3 is the functional block diagram of packet parsing and data memory module, comprises two submodules:
The message data processing unit, it reads message class temporary file, message in the file being added one by one to the message data of database deposits in the summary table, automatically call corresponding storing process by the trigger of database message is resolved, the message after resolving successfully adds in the sublist of depositing certain type message; If resolve failure, then with the reason write error log sheet of failing.After processing to all messages in the file is finished in this unit, this document is clipped to from the file of depositing temporary file in the file of depositing resolution file;
Image data processing unit, its reading images class temporary file, in the image summary table of database, add a record according to data type and time, call storing process by trigger and in the image sublist of correspondence, add a record, and view data directly is stored in tables of data with big data type.After processing to all messages in the file is finished in this unit, this document is clipped to from the file of depositing temporary file in the file of depositing resolution file.
Fig. 4 is the functional block diagram of multi-thread managing module, comprises two submodules:
The establishment of thread, use and destruction unit, it is created some messages according to being provided with of user and downloads and the packet parsing thread when program start, and will download and resolve Task Distribution and give each thread, destroys all threads of its establishment when program stops;
Cross-thread reaches communication unit synchronously, its realize between a plurality of download thread synchronously, prevent that a plurality of threads are simultaneously to same ftp file operation; Realize the synchronous of a plurality of parsing threads, prevent that a plurality of threads are simultaneously to same local file operation; Realize communicating by letter of download thread and parsing thread and main thread, so that main thread in time will download by user management module and the parsing situation is shown to the user.
Fig. 5 is the functional block diagram of user interface management module, comprises two submodules:
The outgoing management unit, it is with various system informations, and for example file download, decomposing state etc. are given the user by interface display;
The input manager unit, it provides various interfaces to be used to receive control command or the configuration parameter of user to system, and carries out according to user's selection and to operate accordingly or keep corresponding data.
Fig. 6 comprises two submodules for connecting failure diagnosis and the functional block diagram of getting rid of module:
Failure diagnosis unit, it regularly attempts connecting FTP and database server, if connect all successes, does not then do any operation, otherwise notice fault processing unit fault takes place; After finding to connect fault, still regularly attempt connecting, if the fault processing unit trouble shooting is then notified in successful connection;
Fault processing unit, its fault of receiving failure diagnosis unit is notified, and by the user interface management module fault message is shown to the user.If be connected inefficacy with FTP, then stop file in download.If be connected inefficacy with database, then stop document analysis; After receiving the trouble shooting notice of failure diagnosis unit, restart file and download or resolve.
Fig. 7 is the functional block diagram of historical data management module, comprises two submodules:
Database stale data clearing cell, its fixed time that is arranged on every day according to the user expired data record in each table of storehouse that clears data;
File system stale data clearing cell, it deletes alternative document according to the file that the user is provided with specified quantity up-to-date in the retention data backup file folder.
The method that the present invention also provides a kind of aviation meteorological data to download automatically, resolve and store, this method is based on the classification meteorological data live transmission method of File Transfer Protocol, wherein the data source end is provided according to the type of meteorological data by the file of the some FTP of providing services, data terminal on local file system, create two groups with ftp server catalogue file one to one, one group is used to store the temporary file of downloading successfully but not resolving as yet, and one group is used to store the file of having resolved as data backup; This method may further comprise the steps: (1) is creating data file in corresponding FTP service folder when the data source end has when new data generate; (2) data terminal regularly travels through all FTP service folder, if do not find file then finish, otherwise changes step (3); (3) deposit under the file of temporary file to local correspondence from copied files on the ftp server, and after copy finishes, the corresponding document on the deletion FTP, always up-to-date to guarantee the file on the ftp server; (4) title of temporary file of copy is verified by rule, if the standard of not meeting then delete; (5) temporary file is resolved, and with the storage of resolving to database; (6) after temporary file is resolved, it is trimmed to the backup data file folder from the file of depositing temporary file.
The flow chart that Fig. 8 downloads for data file mainly may further comprise the steps:
(a) first subdirectory under the FTP root is set to current directory;
(b) judge whether there is file under the current directory, be then to change step (c), otherwise change step (f);
(c) start download thread, download files into the temporary folder of local file system;
(d) file that has been downloaded on the deletion ftp server;
(e) title of check file in download, deletion does not meet the file of standard, changes step (b);
(f) judge that current directory is last subdirectory under the root, be then to change step (h), otherwise change step (g);
(g) the next subdirectory under the root is set to current directory, changes step (b);
(h) finish.
The flow chart that Fig. 9 handles for message data mainly may further comprise the steps:
First subdirectory of (a ') message file temporary folder is set to current directory;
(b ') judges whether there is file under the current directory, and being then changes step (c '), otherwise changes step (f ');
(c ') handle data in the file, and the data after will resolving deposit database in;
Document copying after (d ') will handle is in the backup file folder;
The file of having handled in (e ') deletion temporary folder;
(f ') judges that current directory is last subdirectory under the root, and being then changes step (h '), otherwise changes step (g ');
Next subdirectory under (g ') root is set to current directory, changes step (b ');
(h ') finish.
Figure 10 is the flow chart of message document analysis, mainly may further comprise the steps:
(a ") open the message file under the assigned catalogue, file pointer points to file header;
(b ") judges whether the file pointer back has message, and being then changes step (c "), otherwise changes step (e ");
(c ") read a message, in database message summary table, create a new record, message content is inserted, and in data record, write type of message exactly;
(d ") file pointer moves to handle changes step (b ") after the message accounting;
(e ") close file, finish.
Figure 11 is the flow chart of the step (c ") in the message document analysis flow process, mainly may further comprise the steps:
After (c " .1) message summary table added record, trigger was triggered;
(c " .2) trigger calls corresponding message according to the type of adding record and splits storing process;
(c " .3) storing process adds a new record in the tables of data of correspondence, then every the inserting in the record that data content is split;
(c " .4) judges in the message split process whether wrong generation, and being then changes step (c " .5), otherwise changes step (c " .6);
(c " .5) with error logging in error log table;
(c " .6) finish.
The flow chart that Figure 12 handles for the database stale data mainly may further comprise the steps:
(a " ') time-out data parsing flow process;
(b " ') according to the remember history of current date and user's setting, obtain the deadline of retention data;
The date is early than whole records of deadline in (c " ') deletion message summary table and the image summary table;
(d " ') database root is according to the corresponding record in the deletion sublist automatically of the relation of the cascading delete between summary table and the sublist;
(e " ') the log-on data process of analysis;
(f " ') finish.
The above; it only is preferred embodiment of the present invention; be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs to the protection range of technical solution of the present invention to any simple modification, equivalent variations and modification that above embodiment did.
Claims (8)
1. the device that aviation meteorological data is downloaded automatically, resolved and stores is characterized in that, this device comprises:
The remote transmission module, it is from RSMC's ftp server carrier gas image data file up and down;
Packet parsing and data memory module, it is resolved and stores in the corresponding table of database meteorological message data;
Multi-thread managing module, it is provided with according to the user and creates and managing downloading of threads and parsing thread, makes cross-thread synchronous;
The user interface management module, it carries out the mutual of this device and user;
Connect failure diagnosis and get rid of module, the validity that its self-timing ground this device of diagnosis is connected with ftp server and database server, and in the corresponding failure handling mechanisms of fault generation back startup;
The historical data management module, it is provided with self-timing ground according to the user and removes expired historical data.
2. device according to claim 1 is characterized in that, described remote transmission module comprises:
The connection management unit, it connects parameter configuration by the FTP that subscriber interface module receives the user, and according to this configuration establishment FTP connecting object, attempt connecting ftp server, after the successful connection this FTP connecting object is offered backend application, this connection management unit also on local file system, create two groups with ftp server catalogue file one to one, one group of storage is downloaded successfully but the temporary file of parsing not as yet, stores the file of having resolved as data backup for one group;
The data download unit, it is provided with periodically according to the user folder of the All Files under the assigned catalogue on the ftp server is traveled through, if find to have file, then deposit under the file of temporary file to local correspondence from copied files on the ftp server, after copy finishes, corresponding document on the deletion FTP, this data download unit is also verified the title of temporary file according to the given file designation rule of RSMC, if title does not meet standard then deletes.
3. device according to claim 1 is characterized in that, described packet parsing and data memory module comprise:
The message data processing unit, it reads message class temporary file, message in the file being added one by one to the message data of database deposits in the summary table, automatically calling corresponding storing process by the trigger of database resolves message, message after resolving successfully adds in the sublist of depositing certain type message, if resolve failure, then with the reason write error log sheet of failing, after this message data processing unit is finished processing to all messages in the file, this document is clipped to from the file of depositing temporary file in the file of depositing resolution file;
Image data processing unit, its reading images class temporary file, in the image summary table of database, add a record according to data type and time, call storing process by trigger and in the image sublist of correspondence, add a record, and view data directly is stored in tables of data with big data type, after this image data processing unit is finished processing to all messages in the file, this document is clipped to from the file of depositing temporary file in the file of depositing resolution file.
4. device according to claim 1 is characterized in that, described multi-thread managing module comprises:
The establishment of thread, use and destruction unit, it is created some messages according to being provided with of user and downloads and the packet parsing thread when program start, and will download and resolve Task Distribution and give each thread, destroys all threads of its establishment when program stops;
Cross-thread reaches communication unit synchronously, its a plurality of threads that prevent synchronously that carry out between a plurality of download thread are operated same ftp file simultaneously, that carries out a plurality of parsing threads prevents a plurality of threads synchronously simultaneously to the operation of same local file, and it carrying out download thread, and the parsing thread with communicating by letter of main thread main thread in time will be downloaded by user management module and the parsing situation is shown to the user.
5. device according to claim 1 is characterized in that, described user interface management module comprises:
The outgoing management unit, it will be downloaded as file, the various system informations of decomposing state are given the user by interface display;
The input manager unit, it provides various interfaces to be used to receive control command or the configuration parameter of user to system, and carries out according to user's selection and to operate accordingly or keep corresponding data.
6. device according to claim 1 is characterized in that, described connection failure diagnosis comprises with the eliminating module:
Failure diagnosis unit, it periodically attempts connecting FTP and database server, if connect all successes, then do not do any operation, otherwise notify following fault processing unit fault to take place, and after finding to connect fault, still regularly attempt connecting, if the fault processing unit trouble shooting is then notified in successful connection;
Fault processing unit, its fault of receiving failure diagnosis unit is notified, and fault message is shown to the user by the user interface management module, if be connected inefficacy with FTP, then stop file in download,, then stop document analysis if be connected inefficacy with database, after receiving the trouble shooting notice of failure diagnosis unit, restart file and download or resolve.
7. device according to claim 1 is characterized in that, described historical data management module comprises:
Database stale data clearing cell, its fixed time that is arranged on every day according to the user expired data record in each table of storehouse that clears data;
File system stale data clearing cell, it is provided with the file of specified quantity up-to-date in the retention data backup file folder according to the user, and deletes alternative document.
8. method that aviation meteorological data is downloaded automatically, resolved and stores, it is characterized in that, this method is based on the classification meteorological data live transmission method of File Transfer Protocol, wherein the data source end is provided according to the type of meteorological data by the file of the some FTP of providing services, data terminal on local file system, create two groups with ftp server catalogue file one to one, one group is used to store the temporary file of downloading successfully but not resolving as yet, and one group is used to store the file of having resolved as data backup;
This method may further comprise the steps:
(1) when the data source end has new data to generate, in corresponding FTP service folder, creates data file;
(2) data terminal regularly travels through all FTP service folder, if do not find file then finish, otherwise changes step (3);
(3) deposit under the file of temporary file to local correspondence from copied files on the ftp server, and after copy finishes, the corresponding document on the deletion FTP, always up-to-date to guarantee the file on the ftp server;
(4) title of temporary file of copy is verified by rule, if the standard of not meeting then delete;
(5) temporary file is resolved, and with the storage of resolving to database;
(6) after temporary file is resolved, it is trimmed to the backup data file folder from the file of depositing temporary file.
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