CN116860899A - Updating method of ship inventory chart data - Google Patents
Updating method of ship inventory chart data Download PDFInfo
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- CN116860899A CN116860899A CN202310559796.3A CN202310559796A CN116860899A CN 116860899 A CN116860899 A CN 116860899A CN 202310559796 A CN202310559796 A CN 202310559796A CN 116860899 A CN116860899 A CN 116860899A
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000004806 packaging method and process Methods 0.000 claims abstract description 10
- 238000002372 labelling Methods 0.000 claims description 10
- 230000009471 action Effects 0.000 claims description 9
- 238000004140 cleaning Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000000306 recurrent effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
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- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
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Abstract
The invention discloses a method for updating marine vessel inventory chart data, which comprises the following steps: acquiring all ship stock chart information and storing the information in a server; acquiring the latest chart data and analyzing and generating a data updating operation table; according to the stock chart information and the data updating operation table of each ship, calculating to obtain stock chart updating data of each ship; respectively packaging and storing the inventory chart updating data of all ships in a server; receiving a marine vessel inventory chart data update request; and sending an inventory chart updating data packet of the corresponding ship to request, and updating the ship inventory chart data. The invention can calculate the stock chart updating data of all ships, package and store the stock chart updating data in the server, and directly download the stock chart updating data when the ship requests to update the chart data, thereby improving the stock chart updating efficiency of the ship.
Description
Technical Field
The invention belongs to the field of chart data updating, and particularly relates to a method for updating ship stock chart data.
Background
The sea chart is a map for representing the drawing phenomenon of a sea area, and the main contents of the sea chart include: the sea-land shape, islands, reefs, water depth, navigation marks, radio navigation tables and the like are provided with sea charts, and the navigation of ships is referenced and is not easy to be stranded, so that the sea-land shape, islands, reefs, water depth, navigation marks and radio navigation tables are essential reference data for navigation, and the sea charts are subjected to uninterrupted correction and update after being published to ensure the safety of navigation, so that the situation is always kept.
The traditional updating mode is that after the vessel purchases the chart, an updating request is sent to a server through the vessel end software when the vessel needs to be updated, the server is informed of the chart information (chart number and current version) needing to be updated, after the server receives the request, data packaging is carried out according to the current chart latest version requested by the vessel, and after the data package is ready, the vessel end software downloads and updates.
However, after the chart is updated, the chart information on the server may change occasionally, some charts may be cancelled, some charts may be replaced by new charts, and the situation that the chart of the ship is updated incompletely occurs, and because after the ship requests the latest chart data, the server needs to wait for packing to be completed for downloading, and in the peak period of many ships, the downloading of the update may need to be realized after waiting for a long time. Therefore, a more efficient method for updating marine vessel inventory chart data is becoming a research direction.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a method for updating marine vessel inventory chart data, which is characterized in that a server is used for comprehensively analyzing the latest marine vessel chart data to generate a data updating operation table, and according to the data updating operation table and the inventory chart information of each marine vessel stored in the server in advance, the inventory chart updating data of all the marine vessels are calculated to be packaged, and when the marine vessel requests to update the marine vessel chart data, the marine vessel inventory chart data is directly downloaded, so that the efficiency is improved; and after the vessel inventory chart data is successfully updated, a labeling request for successful updating is sent to the server, and the corresponding vessel inventory chart information stored on the server is modified for subsequent updating and use again.
To achieve the above object, a method for updating marine vessel inventory chart data according to an embodiment of the present invention includes:
s1, acquiring sea chart information of all ship stock and storing the sea chart information in a server;
s2, acquiring the latest chart data and analyzing and generating a data updating operation table;
s3, according to the stock chart information of each ship and the data updating operation table, calculating to obtain stock chart updating data of each ship;
s4, packaging and storing the inventory chart updating data of all the ships in a server respectively;
s5, receiving a ship inventory chart data updating request;
and S6, sending an inventory chart updating data packet of the corresponding ship, and updating the ship inventory chart data.
Further, the step S2 of obtaining the latest chart data and parsing to generate a data update operation table includes: and acquiring the latest chart data, comparing and analyzing chart information of the latest chart data with the next latest chart information stored in the server, and generating a data updating operation table according to the analysis result.
Further, the stock chart update data of the ship at least comprises chart data required for update and an update action program generated according to the data update operation table.
Further, the sea chart data required for updating is an incremental data packet or a full data packet.
Further, the step S6 further includes: and after updating the marine vessel inventory chart data, sending a labeling request for successful updating to the server.
Further, the method further comprises: and S7, after receiving the labeling request, the server modifies corresponding ship inventory chart information stored on the server for subsequent updating and use.
Further, the chart information includes chart numbers, chart versions, and chart futures.
Further, the update action program includes: deleting the cancelled chart in the ship stock chart data; adding a chart to be newly added in ship stock chart data; adding a chart to be replaced in ship stock chart data; cleaning repeated sea charts in ship stock; deleting the replaced chart.
Further, the inventory chart update data of the vessel further includes an update license.
The beneficial effects of the invention are as follows:
1. according to the method, the latest chart data are comprehensively analyzed through the server, a data updating operation table is generated, according to the data updating operation table and the inventory chart information of each ship stored in the server in advance, the inventory chart updating data of all ships are calculated to be packaged, when the ships request to update chart data, the data are directly downloaded, and the ship inventory chart updating efficiency is improved;
2. after the ship inventory chart data is successfully updated, the corresponding ship inventory chart information stored on the server can be modified by sending the labeling request for successful updating to the server, so that the inventory chart information of each ship stored on the server is kept correct in real time, and the accuracy of subsequent updating is ensured;
3. according to the specific conditions of poor network quality and high flow cost on the ship, the provided sea chart data required by updating are accurately divided into the incremental data packets or the full data packets, so that better service is provided for updating the sea chart data of the ship.
Drawings
Fig. 1 is a flowchart of an embodiment of a method for updating marine vessel inventory chart data according to the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the following description will be made with reference to the accompanying drawings and examples.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Generally, the chart data provided by the suppliers are updated every week, the ship uses the ship end software to purchase the chart and update the data, and the purchased chart generally has an effective period of three to twelve months, and the chart within the effective period is called an inventory chart. After the ship is updated in the week of the supplier, the sea chart data of the ship is correspondingly updated so as to always keep the behavior and provide necessary reference data for navigation.
Compared with the traditional chart updating starting mode-ship starting mode:
after the vessel purchases the chart, when the vessel needs to be updated, an update request is sent to a server through the vessel end software, the server is informed of the chart information (namely chart numbers and current versions) needing to be updated, after the server receives the request, data packaging is carried out according to the current chart latest version of the vessel request, and after the data package is ready, the data package is sent to the vessel, and the vessel end software downloads and updates.
Aiming at the defects (incomplete updating, low efficiency and the like) of the traditional chart updating and starting mode, the invention provides a brand new chart updating and starting mode-server starting mode:
as shown in fig. 1, the present invention provides a method for updating marine vessel inventory chart data, which includes:
s1, acquiring all ship inventory chart information and storing the chart information in a server, wherein the chart information comprises chart numbers, chart versions and chart future numbers.
As one example, all ship inventory chart information stored on the server is shown in the following table one:
table one: ship inventory chart information detail table
| Ship name | Ship figure number | Current version on board ship | Current number of phases on board |
| Ship A | Sea chart 1 | 1 | 1 |
| Ship A | Sea chart 2 | 2 | 2 |
| Ship A | Sea chart 3 | 1 | 10 |
| Ship B | Sea chart 10 | 3 | 1 |
| Ship B | Sea chart 5 | 1 | 5 |
| ... | ... | ... | ... |
S2, acquiring the latest chart data and analyzing and generating a data updating operation table;
as one embodiment, after the server obtains the latest chart data provided by the provider, comparing and analyzing chart information of the latest chart data with the next new chart information stored in the server, wherein the next new chart information stored in the server is the latest chart information on the server after the latest chart data provided by the last provider is cut off. And generating a data updating operation table according to the analysis result, wherein the data updating operation table is shown in the following table II:
and (II) table: chart data updating operation table (part)
| Sea chart number | Action |
| l | no change |
| 2 | cance1 |
| 3 | cance1 |
| 4 | replace by 30，31 |
| 5 | replace by 30，31，32 |
| 6 | replace by 32 |
| 7 | replace by 32 |
| 8 | replace by 33 |
| 9 | replace by 34 |
| 10 | replace by 35 |
| 11 | replace by 35，36，37 |
| 12 | replace by 38，40 |
| 13 | update to uptn2-edtn6 from uptn2-edtno |
| 14 | update to uptn2-edtn8 from uptn2-edtn7 |
| 15 | rebase to uptn2-edtn1 from uptn1-edtn32 |
| 16 | rebase to uptn3-edtn1 from uptn2-edtn26 |
| 17 | reissue from uptn2-edtn5，and latest is uptn2-edtn7 |
| 18 | no change |
| 19 | no change |
| 20 | add |
| 21 | add |
| 22 | add |
| 23 | add |
| 24 | add |
| 25 | add |
As shown in the second table, the data updating operation table has clear analysis results for each chart, and specifically, chart 1 is unchanged, i.e. does not need updating; the seacharts 2 and 3 are deleted, namely, the seacharts 2 and 3 are cancelled and need to be deleted; sea chart 4 is "replace with sea chart 30 and sea chart 31"; sea chart 5 is "replace with sea chart 30, sea chart 31, and sea chart 32"; FIG. 6 is "replace with chart 32"; FIG. 7 is "replace with chart 32"; sea chart 8 is "replace with sea chart 33"; sea chart 9 is "replace with sea chart 34"; sea chart 10 is "replace with sea chart 35"; sea 11 is "replace with sea 35, sea 36, and sea 37"; FIG. 12 is "replace with FIG. 38, FIG. 40"; FIG. 13 is "replace from phase 5 of version 2 to phase 6 of version 2"; FIG. 14 is "replace from phase 7 of version 2 to phase 8 of version 2"; FIG. 15 is "replace from phase 32 of version 1 to phase 1 of version 2"; FIG. 16 is "replace from phase 26 of version 2 to phase 1 of version 3"; FIG. 17 is "release 2, release 5 to release 7" replaced with recurrent versions; the charts 18, 19 are "unchanged", i.e. no update is required; the charts 20-25 are "new". Because the seacharts may have an intersecting or nesting relationship with each other, it appears in the map that each polygonal area covering each area like a tile is a seachart of a different chart number. Therefore, even if the sea chart is cancelled, the area of the sea chart can be covered by other sea charts to provide navigation references, and the server considers the coverage condition when giving an updating scheme and gives an alternative or newly added scheme.
S3, calculating to obtain the stock chart updating data of each ship according to the stock chart information of each ship, the secondary new chart information stored in the server and the data updating operation table;
and comparing the inventory chart information and the data updating operation table of each ship with the sub-new chart information stored in the server, and calculating to obtain the inventory chart updating data of each ship.
Because updating of ship stock chart data is not timely due to the influence of operation or network signals and the like, namely, the stock chart data of certain ships are not synchronous with the latest chart data provided by a provider and even lag behind the next new chart data stored in a server, when calculating the ship stock chart updating data, the difference in two aspects is considered at the same time, and firstly, the stock chart information of each ship is compared with the next new chart information stored in the server; firstly, the chart information of the latest chart data provided by the provider is compared with the next new chart information stored in the server, namely, the data generated in the step S2 updates the operation table.
As another implementation example, a dedicated tracking table is established for each chart information updating process, each time the provider is updated, a new record is made for the tracking table according to the data updating operation table, and the new record includes the record of the latest version and the future number, the record of the recurrent version, the record which can be deleted and replaced by a certain chart, and the record is not newly added if the chart is unchanged. When the suppliers update each time, the server calls the tracking table according to the stock chart information of all the ships stored on the server, analyzes chart data and updating operation programs required by updating the stock chart data of each ship into the latest state according to records in the tracking table, and packages the chart data for standby. Under the condition that the ship has no signal and no update for a long time and the ship stock chart data is behind more versions, the traceability updating process can be realized to the greatest extent, and the correct updating data and the correct updating operation program can be generated.
Further, the needed chart data is updated as incremental data packets or full data packets. Because the specific situations of poor network quality and high flow rate cost on the ship are fully considered, for the updated data of the sea chart provided by the server, except the first period number data of each large version, the subsequent updated data is packed by the data similar to the existence of patches and in a packed form; full data packaging is not used unless the ship is first packaging or the version is behind a large version. Typically, a large version starts from phase 1, for example, the current large version is 2, the period number is 3, the normal update is to update the period number to 4 on the basis, the original period numbers 1, 2 and 3 are still normally used, the full package of the version 2 is that 1, 2, 3 and 4 are combined together, but if there is a retransmission, the full package starts from the first period number of the retransmission.
For example, if the ship side requests package data and latest chart data, the following table three is provided:
table three: chart for comparing sea chart information of certain ship stock and latest sea chart data
The server packed data will be as shown in table four below:
table four: packaging data detail table of certain ship server
Further, the stock chart update data of the ship at least includes chart data required for update and an update operation program generated from the data update operation table. The system also comprises a special updating license, namely a updating key, the sea chart software and the ship side software need to decrypt data by using the updating license, and only a specified machine can be successfully matched with the updating license, and then the updating license can be decrypted and updated.
Further, the update action program includes: deleting the cancelled chart in the ship stock chart data; adding a chart to be newly added in ship stock chart data; adding a chart to be replaced in ship stock chart data; cleaning repeated sea charts in ship stock; deleting the replaced chart.
S4, packaging and storing the inventory chart updating data of all the ships in a server respectively;
and packaging the stock chart updating data of each ship respectively, and storing the data in a server according to the ship name or code for calling.
S5, receiving a ship inventory chart data updating request;
the server receives the inventory chart data updating request sent by each ship through the interface.
And S6, sending an inventory chart updating data packet of the corresponding ship, and updating the ship inventory chart data.
After receiving the update request of the stock chart data sent by the ship, the server immediately calls a corresponding update data packet stored in the server according to the name or code of the ship, and sends the update data packet to the ship, and the ship end software runs an update permission and update action program in the update data packet, and updates the stock chart data of the ship according to the chart data required by the update.
Further, step S6 further includes: and after updating the marine vessel inventory chart data, sending a labeling request for successful updating to the server.
Because of problems of the local carrier, communication equipment, base station, signals, etc., even if the server sends the update data packet, the vessel is not able to download and receive the update successfully. When this occurs, the server operates on an incorrect basis the next time it packages the pre-updated data, resulting in erroneous marine chart data. Therefore, after updating the marine vessel inventory chart data in the step S6, the method adds the step of sending the labeling request of successful updating to the server port by the vessel and adds the subsequent step S7.
And S7, after receiving the labeling request, the server modifies the corresponding ship inventory chart information stored on the server for subsequent updating and use.
After receiving the labeling request of the ship, the server modifies the corresponding ship inventory chart information stored on the server for subsequent updating and use.
After updating the chart data week of the supplier, the server side calculates a new ship stock according to the ship stock and the change of chart information (catalogue); according to the updated record of the ship, the server can prepare the data packets of all the ships in advance compared with the latest chart version; when the ship applies for packing, the ready-packed package can be directly downloaded without waiting.
Alternatively, in this embodiment, it will be understood by those skilled in the art that all or part of the steps in the methods of the above embodiments may be performed by a program for instructing a terminal device to execute the steps, where the program may be stored in a computer readable storage medium, and the storage medium may include: flash disk, read-Only Memory (ROM), random-access Memory (Random Access Memory, RAM), magnetic or optical disk, and the like.
The aspects of the present invention, in essence or contributing to the prior art, or all or part of the aspects, may be embodied in the form of a software product stored in a storage medium, comprising instructions for causing one or more computer devices (which may be personal computers, servers, or network devices, etc.) to perform all or part of the steps of the methods of the various embodiments of the invention.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
The invention and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the invention as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present invention.
Claims (9)
1. A method for updating marine vessel inventory chart data, comprising:
s1, acquiring sea chart information of all ship stock and storing the sea chart information in a server;
s2, acquiring the latest chart data and analyzing and generating a data updating operation table;
s3, according to the stock chart information of each ship and the data updating operation table, calculating to obtain stock chart updating data of each ship;
s4, packaging and storing the inventory chart updating data of all the ships in a server respectively;
s5, receiving a ship inventory chart data updating request;
and S6, sending an inventory chart updating data packet of the corresponding ship, and updating the ship inventory chart data.
2. The method for updating marine vessel inventory chart data according to claim 1, wherein the step S2 of acquiring the latest chart data and parsing the generated data updating operation table includes:
and acquiring the latest chart data, comparing and analyzing chart information of the latest chart data with the next latest chart information stored in the server, and generating a data updating operation table according to the analysis result.
3. The method for updating marine vessel inventory chart data according to claim 2, wherein the marine vessel inventory chart update data includes at least chart data required for updating and an update operation program generated based on the data update operation table.
4. A method of updating marine vessel inventory chart data according to claim 3, wherein the chart data required for the updating is an incremental data packet or a full data packet.
5. The method for updating marine vessel inventory chart data according to claim 1, wherein the step S6 further comprises:
and after updating the marine vessel inventory chart data, sending a labeling request for successful updating to the server.
6. The method for updating marine vessel inventory chart data according to claim 5, further comprising:
and S7, after receiving the labeling request, the server modifies corresponding ship inventory chart information stored on the server for subsequent updating and use.
7. The method for updating marine vessel inventory chart data according to claim 1, wherein the chart information includes chart numbers, chart versions, and chart futures.
8. A method of updating marine vessel inventory chart data according to claim 3, wherein the update action program includes:
deleting the cancelled chart in the ship stock chart data; adding a chart to be newly added in ship stock chart data; adding a chart to be replaced in ship stock chart data; cleaning repeated sea charts in ship stock; deleting the replaced chart.
9. A method of updating marine vessel inventory chart data according to claim 3, wherein the marine vessel inventory chart update data further includes an update license.
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