CN103425788A - Picture acquisition method and system for displaying large-screen map - Google Patents
Picture acquisition method and system for displaying large-screen map Download PDFInfo
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- CN103425788A CN103425788A CN2013103793443A CN201310379344A CN103425788A CN 103425788 A CN103425788 A CN 103425788A CN 2013103793443 A CN2013103793443 A CN 2013103793443A CN 201310379344 A CN201310379344 A CN 201310379344A CN 103425788 A CN103425788 A CN 103425788A
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Abstract
The embodiment of the invention discloses a picture acquisition method and a picture acquisition system for displaying a large-screen map. According to the picture acquisition method and the picture acquisition system, the frequency of reading pictures can be reduced, and the response speed of the system can be improved. The method of the embodiment of the invention comprises the following steps of receiving a picture request sent by at least one display node, wherein the picture request comprises a picture number; classifying all the picture requests according to the picture numbers in the picture requests to obtain picture set requests, wherein the amount of the picture set requests is less than or equal to that of the picture requests, and the picture set requests comprise picture set names; acquiring picture sets according to the picture set names of the picture set requests, and then sending pictures corresponding to the picture numbers in the picture requests from the picture sets to the display nodes sending the picture requests.
Description
Technical field
The present invention relates to giant-screen map Display Processing Technology field, be specifically related to picture acquisition methods and system that a kind of giant-screen map shows.
Background technology
Large screen display system is used to Geographic Information System and shows map, and typically, large screen display system is divided into a plurality of distributed demonstration nodes, and all demonstration nodes are by the display server unified management.In the map procedure for displaying, by show that node sends the picture request to display server simultaneously, to ask self map, show needed picture.Display server repeatedly reads respectively picture after receiving the picture request from disk, and returns to showing node, by the demonstration node, according to image data, plays up demonstration.
Those skilled in the art find when putting into practice technique scheme, due to display server when receiving each picture request, all will from disk, read picture, and then return to the demonstration node, display server reads the number of times of picture and receives that the number of times of picture request is equal to from disk.When a plurality of demonstration nodes are asked picture simultaneously, display server wants reading disk repeatedly, directly affects reading speed, also may cause the display server paralysis.
Summary of the invention
For above-mentioned defect, picture acquisition methods and system that the embodiment of the present invention provides a kind of giant-screen map to show, can reduce the number of times that the display server reading disk is obtained picture, improves reading speed.
The picture acquisition methods that one aspect of the present invention provides a kind of giant-screen map to show comprises:
Receive the picture request that at least one shows that node sends, described picture request includes the picture numbering;
According to the numbering of the picture in described picture request, all described picture requests are carried out to taxonomic revision, be less than or equal the pictures request of described picture request quantity, described pictures request includes the pictures title;
According to the pictures name acquiring pictures of described pictures request, then the picture of described picture request is numbered to corresponding picture from described pictures and send to the demonstration node that sends this picture request.
In some embodiments of the invention, describedly according to the picture in described picture request numbering, all described picture requests are carried out to taxonomic revision, be less than or equaled the pictures request of described picture request quantity, comprise: the picture numbering of pictures in the numbering of the picture in described picture request and index is contrasted, the all picture requests that the picture of picture request numbering belonged to same pictures scope are organized into a pictures request, and described pictures request includes the pictures title.
In some embodiments of the invention, described according to described pictures acquisition request pictures, comprising: according to the pictures title in described pictures request, obtain the pictures corresponding with described pictures title from disk.
In some embodiments of the invention, describedly then the picture of described picture request is numbered to corresponding picture from described pictures and send to the demonstration node that sends this picture request, comprise: by described pictures decompress(ion), and the picture in described pictures is blocked one by one according to the row order, then will number corresponding picture with the picture of described picture request and send to the demonstration node that sends this picture request.
The picture that provides on the other hand a kind of giant-screen map to show in the present invention obtains system, comprising:
Receiving element, the picture request that shows that for receiving at least one node sends, described picture request includes the picture numbering;
The requests classification unit, carry out taxonomic revision for the numbering of the picture according to described picture request to all described picture requests, is less than or equals the pictures request of described picture request quantity, and described pictures request includes the pictures title;
Acquiring unit, for the pictures name acquiring pictures according to described pictures request;
Transmitting element, send to for from described pictures, the picture of described picture request being numbered to corresponding picture the demonstration node that sends this picture request.
In some embodiments of the invention, the described request taxon comprises the first requests classification unit; Described the first requests classification unit, for the picture numbering by pictures in the picture of described picture request numbering and index, contrasted, the all picture requests that the picture of picture request numbering belonged to same pictures scope are organized into a pictures request, and described pictures request includes the pictures title.
In some embodiments of the invention, described acquiring unit comprises the pictures acquiring unit; Described pictures acquiring unit for the pictures title according to described pictures request, obtains the pictures corresponding with described pictures title from disk.
In some embodiments of the invention, described transmitting element comprises the picture transmitting element; Described picture transmitting element, for by described pictures decompress(ion), and block the picture in described pictures according to the row order one by one, then will number corresponding picture with the picture of described picture request and send to the demonstration node that sends this picture request.
As can be seen from the above technical solutions, the embodiment of the present invention has the following advantages:
The embodiment of the present invention is classified according to the picture numbering by the picture request to receiving, thereby the picture request is organized into to the pictures request that quantity is less than or equals received picture request quantity, the pictures name acquiring pictures that comprise according to the pictures request after arranging, then number the picture in pictures corresponding picture and send to corresponding demonstration node.The present invention compared to existing technology, is first classified the picture request, obtains the pictures request of smaller amounts, according to pictures acquisition request pictures, reduces the number of times that reads picture, effectively improves response speed.
The accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below will the accompanying drawing of required use in the embodiment of the present invention be briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The schematic flow sheet of the picture acquisition methods that a kind of giant-screen map that Fig. 1 provides for the embodiment of the present invention shows;
Fig. 2 provides the storage mode of compressed picture collection for the embodiment of the present invention;
Another schematic flow sheet of the picture acquisition methods that a kind of giant-screen map that Fig. 3 provides for the embodiment of the present invention shows;
The picture that a kind of giant-screen map that Fig. 4 provides for the embodiment of the present invention shows obtains the structural representation of system;
The picture that a kind of giant-screen map that Fig. 5-a provides for the embodiment of the present invention shows obtains another structural representation of system;
The picture that a kind of giant-screen map that Fig. 5-b provides for the embodiment of the present invention shows obtains another structural representation of system;
The picture that a kind of giant-screen map that Fig. 5-c provides for the embodiment of the present invention shows obtains another structural representation of system.
Embodiment
Below in conjunction with the accompanying drawing of the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making under the creative work prerequisite the every other embodiment obtained, belong to the scope of protection of the invention.
The embodiment of the present invention provides a kind of picture acquisition methods and system of giant-screen map demonstration, reads the number of times of picture for minimizing, improves the picture speed that reads.
As shown in Figure 1, the picture acquisition methods that the embodiment of the present invention provides a kind of giant-screen map to show comprises:
S110, receive the picture request that at least one shows that node sends, described picture request includes the picture numbering;
Be understandable that, in large screen display system, comprise a display server, at least one shows node, and display server shows that with each node is connected, and shows that node obtains map and shows needed picture from display server.
Show that node is before carrying out the map demonstration, send the picture request to display server and ask the picture shown, can be by carry the picture numbering of every pictures of asking in the picture request.
S120, according to the picture in described picture request numbering, all described picture requests are carried out to taxonomic revision, be less than or equal the pictures request of described picture request quantity, described pictures request includes the pictures title;
Be understandable that, show that node only shows the part in map, and then in large screen display, map is divided into plurality of pictures, every pictures is corresponding a picture numbering all, then according to the picture numbering, picture is divided into to multiclass, pictures are preserved in each class picture compression, and give each pictures name.
After display server receives the picture request, can the picture numbering be belonged to of a sort picture request and form a pictures request according to the numbering of the picture in the picture request, include the pictures title in the pictures request.
S130, according to the pictures name acquiring pictures of described pictures request, then the picture of described picture request is numbered to corresponding picture from described pictures and sends to the demonstration node that sends this picture request.
Wherein, display server, according to the pictures name acquiring pictures of pictures request, sends picture in the picture request then to the demonstration node that sends the picture request and numbers corresponding picture.
The embodiment of the present invention, by simply the picture request being numbered to classify according to picture, obtains the pictures request under multiple classification, thereby reduces the number of times of request picture, effectively improves display server and reads the speed of picture and the response speed of system.
Be understandable that, in large screen display system, map is divided into the multiple lines and multiple rows picture according to coordinate, can mean with two-dimensional array, and with it, the position at two-dimensional array means the title of each pictures after cutting apart.The resolution of supposing a map is 102400x102400, and the resolution of the picture after cutting apart is 256x256, map can be divided into to 400x400 totally 160000 pictures so.Suppose that two-dimensional array is P(m, n), can name every pictures with (i, j) so, this i is the integer that is less than or equal to m, j is the integer that is less than or equal to n.Then be compressed into 400 pictures according to being about to 160000 pictures, 400 pictures are stored in disk.As shown in Figure 2, the first row in two-dimensional array is compressed into pictures 1 to pictures after compression, has 400 pictures in pictures 1, by picture, is numbered (0,0), (0,1)---and the picture of (0,399) forms; The second row is compressed into pictures 2, has 400 pictures in pictures 2, by picture, is numbered (1,0), (1,1)---and the picture of (1,399) forms; The capable pictures N that is compressed into of N, have 400 pictures in pictures N, by picture, be numbered (N, 0), (N, 1)---and the picture of (N, 399) forms; The 400th row is compressed into pictures 400, has 400 pictures in pictures 400, by picture, is numbered (399,0), (399,1)---and the picture of (399,399) forms.
Be understandable that, above-mentioned same a line picture is also picture at same frame.
Alternatively, set up the index of pictures simultaneously, include the pictures title in index, the picture numbering of all pictures that also have these pictures to comprise.
And then as shown in Figure 3, the picture acquisition methods that a kind of giant-screen map that the embodiment of the present invention provides shows can comprise:
S310, receive the picture request that at least one shows that node sends, described picture request includes the picture numbering;
This step is identical with above-mentioned steps S110, does not repeat them here.
S320, the picture numbering of pictures in the picture in described picture request numbering and index is contrasted, the all picture requests that the picture of picture request numbering belonged to same pictures scope are organized into a pictures request, and described pictures request includes the pictures title.
Wherein, after display server receives the picture request, the picture numbering of searching in index in which pictures comprises the picture numbering in this picture request, then the picture request that the picture numbering is all belonged to these pictures is classified as the request to these pictures, obtain a pictures request, and comprise the pictures title in the pictures request, to facilitate the follow-up pictures that obtain.
S330, according to the pictures title in described pictures request, obtain the pictures corresponding with described pictures title from disk.
Wherein, picture request classified finishing is become at least one pictures request, according to pictures title in the pictures request, just can from disk, find corresponding pictures.
S340, by described pictures decompress(ion), and the picture in described pictures is blocked one by one according to row order, then will number corresponding picture with the picture of described picture request and send to the demonstration node that sends this picture request.
Wherein, for the utilization factor that improves disk size and the speed of display server reading disk, pictures are compression storages, read pictures from disk after, first pictures are carried out to decompress(ion), then according to order in row, picture is blocked one by one, then, according to picture numbering in the picture request, picture is numbered to corresponding picture and send to the demonstration node that sends this picture request.
In the embodiment of the present invention, display server is after receiving the picture request, in the index of reference list, the picture of pictures numbering is contrasted with the picture numbering in the picture request, the picture request that picture numbering in the picture request is belonged to same pictures is classified as a class, obtain asking the pictures request of these pictures, also will in this pictures request, carry the pictures title, display server can read pictures easily from disk simultaneously.Due to the picture request is organized into to the pictures request, the quantity of pictures request can be equal to or less than the picture request, owing to being that a plurality of demonstration nodes send the picture request to display server simultaneously, so that the pictures request is less than the probability of picture request is very large.And display server is that request visits disk according to pictures, obtain pictures from disk, visible, the number of times of display server access disk is the same with the quantity of pictures request, thereby reduced the number of times of reading disk, improve the response speed of whole system, also accelerated the speed read.
As shown in Figure 4, the picture that the embodiment of the present invention also provides a kind of giant-screen map to show obtains system, can comprise:
Receiving element 410, the picture request that shows that for receiving at least one node sends, described picture request includes the picture numbering;
Acquiring unit 430, for the pictures name acquiring pictures according to described pictures request;
Transmitting element 440, send to for from described pictures, the picture of described picture request being numbered to corresponding picture the demonstration node that sends this picture request.
In embodiments of the present invention, receiving element 410 shows that from least one Nodes receives the picture request, the corresponding picture numbering that includes the picture that this demonstration node will ask in each picture request, requests classification unit 420 is organized into the pictures request after can the picture request being sorted out according to the numbering of the picture in the picture request, acquiring unit 430, according to pictures acquisition request pictures, is then numbered corresponding picture by transmitting element 440 by picture in the picture request and is sent to corresponding demonstration node.The embodiment of the present invention can reduce the number of times of reading disk, improves response speed.
In some embodiments of the invention, as shown in Fig. 5-a, described request taxon 420 comprises the first requests classification unit 520;
Wherein, described the first requests classification unit 520, for the picture numbering by pictures in the picture of described picture request numbering and index, contrasted, the all picture requests that the picture of picture request numbering belonged to same pictures scope are organized into a pictures request, and described pictures request includes the pictures title.
In some embodiments of the invention, as shown in Fig. 5-b, described acquiring unit 430 comprises pictures acquiring unit 530;
Wherein, described pictures acquiring unit 530 for the pictures title according to described pictures request, obtains the pictures corresponding with described pictures title from disk.
In some embodiments of the invention, as shown in Fig. 5-c, described transmitting element 440 comprises picture transmitting element 540;
Wherein, described picture transmitting element 540, for by described pictures decompress(ion), and block the picture in described pictures according to the row order one by one, then will number corresponding picture with the picture of described picture request and send to the demonstration node that sends this picture request.
The embodiment of the present invention is classified according to the picture numbering by the picture request to receiving, thereby the picture request is organized into to the pictures request that quantity is less than or equals received picture request quantity, according to the pictures acquisition request pictures after arranging, then the picture in pictures is numbered to corresponding picture and send to corresponding demonstration node.The embodiment of the present invention can be classified the picture request, obtains quantity pictures request still less, according to the pictures request, from disk, reads pictures, thereby reduces the number of times that reads picture, effectively improves response speed.
One of ordinary skill in the art will appreciate that all or part of step realized in above-described embodiment method is to come the hardware that instruction is relevant to complete by program, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium of mentioning can be ROM (read-only memory), disk or CD etc.
Above picture acquisition methods and the system that a kind of giant-screen map provided by the present invention is shown is described in detail, for one of ordinary skill in the art, thought according to the embodiment of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (8)
1. the picture acquisition methods that the giant-screen map shows, is characterized in that, comprising:
Receive the picture request that at least one shows that node sends, described picture request includes the picture numbering;
According to the numbering of the picture in described picture request, all described picture requests are carried out to taxonomic revision, be less than or equal the pictures request of described picture request quantity, described pictures request includes the pictures title;
According to the pictures name acquiring pictures of described pictures request, then the picture of described picture request is numbered to corresponding picture from described pictures and send to the demonstration node that sends this picture request.
2. picture acquisition methods according to claim 1, is characterized in that, describedly according to the picture in described picture request numbering, all described picture requests carried out to taxonomic revision, is less than or equals the pictures request of described picture request quantity, comprising:
The picture numbering of pictures in the numbering of the picture in described picture request and index is contrasted, the all picture requests that the picture of picture request numbering belonged to same pictures scope are organized into a pictures request, and described pictures request includes the pictures title.
3. picture acquisition methods according to claim 1 and 2, is characterized in that, described according to described pictures acquisition request pictures, comprising:
According to the pictures title in described pictures request, obtain the pictures corresponding with described pictures title from disk.
4. picture acquisition methods according to claim 3, is characterized in that, describedly then the picture of described picture request numbered to corresponding picture from described pictures and send to the demonstration node that sends this picture request, comprising:
By described pictures decompress(ion), and the picture in described pictures is blocked one by one according to the row order, then will number corresponding picture with the picture of described picture request and send to the demonstration node that sends this picture request.
5. the picture of a giant-screen map demonstration obtains system, it is characterized in that, comprising:
Receiving element, the picture request that shows that for receiving at least one node sends, described picture request includes the picture numbering;
The requests classification unit, carry out taxonomic revision according to the numbering of the picture in described picture request to all described picture requests, is less than or equals the pictures request of described picture request quantity, and described pictures request includes the pictures title;
Acquiring unit, for the pictures name acquiring pictures according to described pictures request;
Transmitting element, send to for from described pictures, the picture of described picture request being numbered to corresponding picture the demonstration node that sends this picture request.
6. picture according to claim 5 obtains system, it is characterized in that, the described request taxon comprises the first requests classification unit;
Described the first requests classification unit, for the picture numbering by pictures in the picture of described picture request numbering and index, contrasted, the all picture requests that the picture of picture request numbering belonged to same pictures scope are organized into a pictures request, and described pictures request includes the pictures title.
7. obtain system according to the described picture of claim 5 or 6, it is characterized in that, described acquiring unit comprises the pictures acquiring unit;
Described pictures acquiring unit for the pictures title according to described pictures request, obtains the pictures corresponding with described pictures title from disk.
8. picture according to claim 7 obtains system, it is characterized in that, described transmitting element comprises the picture transmitting element;
Described picture transmitting element, for by described pictures decompress(ion), and block the picture in described pictures according to the row order one by one, then will number corresponding picture with the picture of described picture request and send to the demonstration node that sends this picture request.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013103793443A CN103425788A (en) | 2013-08-27 | 2013-08-27 | Picture acquisition method and system for displaying large-screen map |
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| CN2013103793443A CN103425788A (en) | 2013-08-27 | 2013-08-27 | Picture acquisition method and system for displaying large-screen map |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0285962A (en) * | 1988-09-22 | 1990-03-27 | Nec Corp | Image data retrieval system |
| EP0535398A2 (en) * | 1991-10-04 | 1993-04-07 | Eastman Kodak Company | Microfilm image retrieval system |
| EP0556400A1 (en) * | 1991-07-12 | 1993-08-25 | Fujitsu Limited | Method of managing plural drawings for system for managing geographic information |
-
2013
- 2013-08-27 CN CN2013103793443A patent/CN103425788A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0285962A (en) * | 1988-09-22 | 1990-03-27 | Nec Corp | Image data retrieval system |
| EP0556400A1 (en) * | 1991-07-12 | 1993-08-25 | Fujitsu Limited | Method of managing plural drawings for system for managing geographic information |
| EP0535398A2 (en) * | 1991-10-04 | 1993-04-07 | Eastman Kodak Company | Microfilm image retrieval system |
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Application publication date: 20131204 |