CN102136000B - Method and device for loading dynamic data based on cache - Google Patents
Method and device for loading dynamic data based on cache Download PDFInfo
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- CN102136000B CN102136000B CN2011100727296A CN201110072729A CN102136000B CN 102136000 B CN102136000 B CN 102136000B CN 2011100727296 A CN2011100727296 A CN 2011100727296A CN 201110072729 A CN201110072729 A CN 201110072729A CN 102136000 B CN102136000 B CN 102136000B
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Abstract
The invention discloses a method and device for loading dynamic data based on cache. The method comprises the following steps of: receiving a file opening request by using a CAD (Computer Aided Design) system; after the file opening request is received, writing CAD file data into the cache according to the file opening request; establishing a part container and a part component container in the cache according to the CAD file data, so that the CAD file data are opened in the cache; and after the CAD file data are opened in the cache, further receiving an operation request by using the CAD system and calling a part object and a part component object by using the part container and the part component container so as to load the CAD file data into an internal storage and finish operating by calling the file data in the internal storage. By adopting the method and the device, the problems of over-low opening speed of the CAD file data, excessive occupation of the internal storage and low overall performance of the system are solved, and the aims of saving the internal storage and increasing the overall operating efficiency of the CAD system are fulfilled.
Description
Technical field
The present invention relates to computer realm, in particular to a kind of dynamic data loading method and device based on buffer memory.
Background technology
Along with three-dimensional CAD software in manufacturing industry, especially in the widespread use of equipment industry, the handled model of software is also in continuous increase.Speed reduction unit model by an initial hundreds of part, the whole vehicle model of several ten thousand parts till now and big machinery equipment, make the model data file be increased to hundreds of MB by original hundreds of KB, so just software performance and internal memory use amount have been proposed new requirement.
For example open a speed reduction unit assembling that more than 100 part arranged, the computing machine of mainstream configuration only needed in 5 seconds at present, committed memory is less than 100MB, there is the big machinery of 30,000 parts to assemble and open one, the computing machine of equal configuration needs more than 5 minutes, committed memory is near 2GB, and this is that general user institute is intolerable.Although the user can improve speed to a certain extent by improving hardware configuration, solve the memory consumption problem, but for the big assembling up to ten thousand of part number, the effect that only promotes hardware configuration is just no longer so obvious, and under 32 systems of Windows XP, the shared internal memory maximum constraints of each process is 3GB, and when surpassing this restriction, software will directly withdraw from unusually.Therefore, must make essence from software algorithm and improve, so just can make software in performance the lifting of matter be arranged, thereby satisfy the further needs of enterprise.
Opened at present slowly at the cad file data of correlation technique, committed memory is too much, and the problem that overall system performance is low does not propose effective solution at present as yet.
Summary of the invention
Cad file data at correlation technique were opened slow, committed memory is too much, the problem that overall system performance is low, do not propose effective problem as yet at present and propose the present invention, for this reason, fundamental purpose of the present invention is to provide a kind of dynamic data loading method and device based on buffer memory, to address the above problem.
To achieve these goals, according to an aspect of the present invention, provide a kind of dynamic data loading method based on buffer memory, this method comprises: CAD system receives the request of opening file; According to the request of opening file the cad file data are write buffer memory; In buffer memory, make up part container and part assemblies container according to the cad file data, make the cad file data in buffer memory, open; CAD system receives operation requests, and calls part object and part assemblies object by part container and part assemblies container, thereby the cad file data are loaded on internal memory.
Further, CAD system receives operation requests, and call part object and part assemblies object by part container and part assemblies container, thereby being loaded on internal memory, the cad file data comprise the steps: that CAD system calls part container and part assemblies container according to operation requests; Call the part object corresponding with it by the part container, simultaneously, call the part assemblies object corresponding with it by the part assemblies container; According to part object and part assemblies object the cad file data are loaded on internal memory; CAD system is returned the cad file data.
Further, before calling the part assemblies object corresponding with it by the part assemblies container, method also comprises: judge whether to exist the part assemblies object corresponding with the part assemblies container, wherein, if exist, then call the part assemblies object by the part assemblies container; If there is no, then return cache makes up the part assemblies object corresponding with the part assemblies container in buffer memory, and after making up the success of part assemblies object, calls the part assemblies object by the part assemblies container.
Further, the cad file data comprise one or more part datas, and each part data comprises one or more part assemblies data by attributive classification.
Further, the step that makes up part container and part assemblies container according to the cad file data in buffer memory comprises: read the cad file data in the buffer memory, with start address and the size of data of obtaining each part data, and make up the part container according to start address and the size of data of each part data; Read part data, with start address and the size of data of obtaining each part assemblies data, and make up the part assemblies container according to start address and the size of data of each part assemblies data.
Further, the part container comprises one or more part assemblies containers.
According to a further aspect in the invention, provide a kind of device that loads based on the dynamic data of buffer memory, this device comprises: acquisition module is used for CAD system and receives the request of opening file; Writing module is used for according to the request of opening file the cad file data being write cache module; Make up module, be used for making up part container and part assemblies container according to the cad file data at cache module, make the cad file data in cache module, open; Operational module is used for CAD system and receives operation requests, and call part object and part assemblies object by part container and part assemblies container, thereby the cad file data are loaded on internal memory.
Further, operational module comprises: calling module one is used for CAD system and calls part container and part assemblies container according to operation requests; Calling module two is used for calling the part object corresponding with it by the part container, simultaneously, calls the part assemblies object corresponding with it by the part assemblies container; Load-on module is used for according to part object and part assemblies object the cad file data being loaded on internal memory; Return module, be used for CAD system and return the cad file data.
Further, calling module two comprises: judge module, be used for judging whether to exist the part assemblies object corresponding with the part assemblies container, and wherein, if exist, then call the part assemblies object by the part assemblies container; If there is no, then return cache makes up the part assemblies object corresponding with the part assemblies container in buffer memory, and after making up the success of part assemblies object, calls the part assemblies object by the part assemblies container.
Further, make up module and comprise: first makes up submodule, is used for reading the cad file data of buffer memory, with start address and the size of data of obtaining each part data, and makes up the part container according to start address and the size of data of each part data; Second makes up submodule, is used for reading part data, with start address and the size of data of obtaining each part assemblies data, and makes up the part assemblies container according to start address and the size of data of each part assemblies data.
By the present invention, adopt CAD system to receive the request of opening file; After the reception request of opening file, according to the request of opening file the cad file data are write buffer memory; And in buffer memory according to cad file data construct part container and part assemblies container, make the cad file data in buffer memory, open; After the cad file data are opened in buffer memory, CAD system further receives operation requests again, and call part object and part assemblies object by part container and part assemblies container, thereby the cad file data are loaded on internal memory, and then by the file data complete operation in the invoke memory.Opened slowly thereby solved the cad file data, committed memory is too much, the problem that overall system performance is low, and then reached save memory, improve the effect of CAD system overall operation efficiency.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not constitute improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is according to the structural representation based on the dynamic data charger of buffer memory in the embodiment of the invention;
Fig. 2 is based on the structural representation of operational module shown in Figure 1;
Fig. 3 is based on the structural representation of calling module two in the operational module shown in Figure 2;
Fig. 4 is based on the structural representation of structure module shown in Figure 1;
Fig. 5 is according to the process flow diagram based on the dynamic data loading method of buffer memory in the embodiment of the invention;
Fig. 6 is the internal storage structure synoptic diagram according to part data in the cad file data in the embodiment of the invention; And
Fig. 7 is according to the preferred embodiment of the invention based on the dynamic data loading method of buffer memory.
Embodiment
Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Fig. 1 is according to the structural representation based on the dynamic data charger of buffer memory in the embodiment of the invention; As shown in Figure 1, this device comprises: acquisition module 1 is used for CAD system and receives the request of opening file; Writing module 3 is used for according to the request of opening file the cad file data being write cache module 5; Make up module 7, be used for making up part container and part assemblies container according to the cad file data at cache module 5, make the cad file data in cache module 5, open; Operational module 9 is used for CAD system and receives operation requests, and call part object and part assemblies object by part container and part assemblies container, thereby the cad file data are loaded on internal memory.
In the above-described embodiments, when we need use the cad file data and these cad file data are operated, the acquisition module 1 in the CAD system can receive the request of opening file; And this request sent to writing module 3, writing module 3 can be written to the cad file data of asking in the cache module 5 according to this request; After being written to the cad file data in the cache module 5, make up module 7 makes up this document data in cache module 5 according to the cad file data part container and part assemblies container; Operational module 9 in the CAD system further receives operation requests, and call part object and part assemblies object by part container and part assemblies container, thereby the cad file data are loaded in the internal memory, and then by the file data complete operation in the invoke memory.By above-mentioned embodiment, the present invention can solve the cad file data and open slowly, and committed memory is too much, and the problem that overall system performance is low has improved overall operation efficient and the performance of three dimensional CAD system further.
Fig. 2 is based on the structural representation of operational module shown in Figure 1.Operational module 9 in above-described embodiment comprises calling module 1, is used for CAD system and calls part container and part assemblies container according to operation requests; Calling module 2 92 is used for calling the part object corresponding with it by the part container, simultaneously, calls the part assemblies object corresponding with it by the part assemblies container; Load-on module 93 is used for according to part object and part assemblies object the cad file data being loaded on internal memory; Return module 94, be used for CAD system and return the cad file data.
In the above embodiment of the present invention, when CAD system receives operation requests, operation requests can be sent to calling module 1, calling module one finds the part container corresponding with it and part assemblies container according to concrete operation requests, afterwards, calling module 92 finds the part object corresponding with it and part assemblies object by part container and part assemblies container again, load-on module 93 is loaded on the cad file data in the internal memory according to part object and the part assemblies object of correspondence then, at last, return module 94 the cad file data are returned from internal memory, thereby finished operation requests.
Fig. 3 is based on the structural representation of calling module two in the operational module shown in Figure 2.As shown in Figure 3, calling module 2 92 comprises: judge module 921, be used for judging whether to exist the part assemblies object corresponding with the part assemblies container, and wherein, if exist, then call the part assemblies object by the part assemblies container; If there is no, then return cache makes up the part assemblies object corresponding with the part assemblies container in buffer memory, and after making up the success of part assemblies object, calls the part assemblies object by the part assemblies container.
Fig. 4 is based on the structural representation of structure module shown in Figure 1.Making up module 7 comprises: first makes up submodule 71, is used for reading the cad file data of buffer memory, with start address and the size of data of obtaining each part data, and makes up the part container according to start address and the size of data of each part data; Second makes up submodule 72, is used for reading part data, with start address and the size of data of obtaining each part assemblies data, and makes up the part assemblies container according to start address and the size of data of each part assemblies data.
Fig. 5 is according to the process flow diagram based on the dynamic data loading method of buffer memory in the embodiment of the invention.As shown in Figure 5, this method comprises the steps:
S10, CAD system receives the request of opening file;
S30 writes buffer memory according to the request of opening file with the cad file data;
S50 makes up part container and part assemblies container according to the cad file data in buffer memory, make the cad file data open in buffer memory;
S70, CAD system receives operation requests, and calls part object and part assemblies object by part container and part assemblies container, thereby the cad file data are loaded on internal memory.
In the above-described embodiments, when we need use the cad file data and these cad file data are operated, CAD system received the request of opening file; After the reception request of opening file, according to the request of opening file the cad file data are write buffer memory; And in buffer memory according to cad file data construct part container and part assemblies container, make the cad file data in buffer memory, open; After the cad file data are opened in buffer memory, CAD system further receives operation requests again, and call part object and part assemblies object by part container and part assemblies container, thereby the cad file data are loaded on internal memory, and then by the file data complete operation in the invoke memory.Opened slowly by the invention solves the cad file data, committed memory is too much, and the problem that overall system performance is low can reach save memory, improves the effect of CAD system overall operation efficiency.
Above-described embodiment of this method elaborates in the embodiment that as above installs, does not repeat them here.
Fig. 6 is the internal storage structure synoptic diagram according to part data in the cad file data in the embodiment of the invention.As shown in Figure 6, cad file data comprise one or more part datas, and each part data comprises one or more part assemblies data by attributive classification.A part data loads a part, and we are referred to as the part object; Part assemblies data are loaded a plurality of part assemblies, and we are referred to as the part assemblies object.In order to realize dynamic load, pack the part object with the part container of a lightweight respectively, this part container records start address and the size of data of this part object in the cad file data stream; Part assemblies container with a lightweight is packed the part assemblies object, and this part assemblies container records start address and the size of data of this part assemblies object in data stream.Part container and part assemblies container all are the lightweight data, committed memory seldom, part object and part assemblies to as if the heavyweight data, committed memory is more.When visit heavyweight datarams, must can't directly visit the internal memory of heavyweight data outside that is to say through the container of lightweight.
Fig. 7 is according to the preferred embodiment of the invention based on the dynamic data loading method of buffer memory.As shown in Figure 7, the concrete steps of this method are as follows:
S10, CAD system receives the request of opening file.
S30 writes buffer memory according to the request of opening file with the cad file data.
S50 makes up part container and part assemblies container according to the cad file data in buffer memory, the step that makes the cad file data open in buffer memory can comprise as follows:
S51 makes up the part container according to the cad file data in buffer memory;
S53 is making up the part container, makes up the part assemblies container according to the cad file data in buffer memory;
S55, the cad file data are opened in buffer memory.
S70, CAD system receives operation requests, and calls part object and part assemblies object by part container and part assemblies container, thereby can comprise the step that the cad file data are loaded on internal memory as follows:
S71, CAD system receives operation requests;
S73, CAD system judges whether to exist corresponding part assemblies object according to the operation requests that receives, and if there is no corresponding part assemblies object then enters step S75, otherwise, change step S77 over to.
S75 makes up the part assemblies object in buffer memory, made up the part assemblies object after, enter step S77.
S77 calls the part assemblies object from buffer memory, return the cad file data at last.
Below, we with the CAD design of bowl cover and cup body these two familiar object Benq in the dynamic data loading procedure of buffer memory.
Design phase in CAD system generally is designed to two parts to bowl cover and cup body, guarantees that by the part assembling means bowl cover and cup body size are complementary.Suppose that these two parts design and kept.Following emphasis with the bowl cover be example explanation open the cad file data procedures and open file after the process of dynamic load data from buffer memory how in the use.
CAD system has the file data of bowl cover and cup body to open in device, and this document data is written in the buffer memory, makes up in buffer memory according to the file data of bowl cover and cup body to make up the part container respectively and make up the part assemblies container respectively by attribute.Be that bowl cover start address and size of data in the cad file data are loaded as: the structure of the part container of bowl cover, the structure of the part assemblies container of this bowl cover is to make up by start address and the size of data of each attribute of this bowl cover in the cad file data, and the part container of cup body and the structure principle of part assemblies container are identical with the cup body.After having made up part container and part assemblies container, the file data of bowl cover and cup body is all opened in buffer memory.
After the cad file of above-mentioned bowl cover and cup body was all opened in buffer memory, CAD system can load data according to different operation requests in the process of operation.At concrete operation requests, the dynamic data loading procedure is described below.
Operation requests one: screen redraws request
(1) CAD system is transmitted to each part container to the screen request of redrawing;
(2) bowl cover part container is received the request of redrawing, and is transmitted to the part assemblies container that management shows;
(3) the part assemblies object that shows of the part assemblies container visit management corresponding with it that show of management if it does not exist, makes up in buffer memory and part assemblies object that demonstration is corresponding so;
(4) right by the part assemblies of calling the management demonstration, corresponding data are returned on the screen;
(5) bowl cover redraws and shows and to finish;
(6) CAD system is then passed to next part container (for example cup body) to operation requests;
Then, the user has chosen bowl cover, has clicked the order of calculating part quality.
Operation requests two: calculated mass request
(1) CAD system is passed to the calculated mass request in the part container of bowl cover;
(2) bowl cover part container is received the calculated mass request, is transmitted to the part assemblies container of management entity geometry;
(3) the part assemblies container of management entity geometry is visited the part assemblies object of the management entity geometry corresponding with it, if it does not exist, makes up the part assemblies object of the management entity geometry corresponding with it so in buffer memory;
(4) the part assemblies calculation and object of management entity geometry goes out the quality of bowl cover part;
(5) the calculated mass request is finished;
Then, the user will bowl cover be placed on the cup on one's body, check whether the bowl cover size suitable.
Operation requests three: location revision request
(1) CAD system is passed to the request of location revision in the part container of bowl cover;
(2) bowl cover part container is received the location revision request, is transmitted to the part assemblies container of management position;
(3) the part assemblies container of management position is visited the part assemblies object of the management position corresponding with it, if it does not exist, makes up the part assemblies object of the management position corresponding with it so at buffer memory;
(4) component object of management position upgrades user's appointed positions data;
(5) position is revised and is asked to finish;
From above concrete operations, we can learn that a cad file packet contains one or more parts.When operating personnel only need operate certain attribute of certain part, only need call the part container of this part, and the part assemblies container corresponding with this attribute under this part container, by calling corresponding part assemblies container, call the part assemblies object, and need not whole C AD file data is loaded, thereby reduced taking of internal memory.
From above description, as can be seen, the present invention has realized following technique effect: at prior art problems, the invention solves the cad file data opened slow, committed memory is too much, the problem that overall system performance is low makes three-dimensional CAD software adapt to the demand on using technically again, provides strong technical guarantee for enterprise produces.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the memory storage and be carried out by calculation element, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
Be the preferred embodiments of the present invention only below, be not limited to the present invention, for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. the dynamic data loading method based on buffer memory is characterized in that, comprises the steps:
CAD system receives the request of opening file;
According to the described request of opening file the cad file data are write buffer memory;
In described buffer memory, make up part container and part assemblies container according to described cad file data, make described cad file data in described buffer memory, open;
CAD system receives operation requests, and calls part object and part assemblies object by described part container and described part assemblies container, thereby described cad file data are loaded on internal memory;
Wherein, described part container is used for packing the part object, and this part container records start address and the size of data of described part object in the cad file data stream; Described part assemblies container is used for packing the part assemblies object, and this part assemblies container records start address and the size of data of described part assemblies object in the cad file data stream;
Described operation requests comprises following any one or a plurality of request: the screen request of redrawing, calculated mass request and location revision request, wherein, after calling part object and part assemblies object by described part container and described part assemblies container, if there is no Dui Ying object is then created the part assemblies object corresponding with described part assemblies container in buffer memory;
Wherein, the step that makes up part container and part assemblies container according to described cad file data in described buffer memory comprises: read the described cad file data in the described buffer memory, with start address and the size of data of obtaining each part data, and make up described part container according to start address and the size of data of each described part data; Read described part data, with start address and the size of data of obtaining each described part assemblies data, and make up described part assemblies container according to start address and the size of data of each described part assemblies data.
2. the dynamic data loading method based on buffer memory according to claim 1, it is characterized in that, CAD system receives operation requests, and call part object and part assemblies object by described part container and described part assemblies container, thereby being loaded on internal memory, described cad file data comprise the steps:
CAD system is called described part container and described part assemblies container according to described operation requests;
Call the described part object corresponding with it by described part container, simultaneously, call the part assemblies object corresponding with it by described part assemblies container;
According to described part object and described part assemblies object described cad file data are loaded on internal memory;
CAD system is returned described cad file data.
3. the dynamic data loading method based on buffer memory according to claim 2 is characterized in that, before calling the part assemblies object corresponding with it by described part assemblies container, described method also comprises:
Judge whether to exist the described part assemblies object corresponding with described part assemblies container, wherein,
If exist, then call described part assemblies object by described part assemblies container;
If there is no, then return described buffer memory, in described buffer memory, make up the described part assemblies object corresponding with described part assemblies container, and after making up described part assemblies object success, call described part assemblies object by described part assemblies container.
4. the dynamic data loading method based on buffer memory according to claim 3 is characterized in that, described cad file data comprise one or more described part datas, and each described part data comprises one or more part assemblies data by attributive classification.
5. the dynamic data loading method based on buffer memory according to claim 1 is characterized in that, described part container comprises one or more described part assemblies containers.
6. the dynamic data charger based on buffer memory is characterized in that, comprising:
Acquisition module (1) is used for CAD system and receives the request of opening file;
Writing module (3) is used for according to the described request of opening file the cad file data being write cache module (5);
Make up module (7), be used for making up part container and part assemblies container according to described cad file data at described cache module (5), make described cad file data in described cache module (5), open;
Operational module (9) is used for CAD system and receives operation requests, and call part object and part assemblies object by described part container and described part assemblies container, thereby described cad file data are loaded on internal memory;
Wherein, described part container is used for packing the part object, and this part container records start address and the size of data of described part object in the cad file data stream; Described part assemblies container is used for packing the part assemblies object, and this part assemblies container records start address and the size of data of described part assemblies object in data stream;
Described operation requests comprises following any one or a plurality of request: the screen request of redrawing, calculated mass request and location revision request, wherein, described device also comprises: creation module, be used for after calling part object and part assemblies object by described part container and described part assemblies container, if there is no Dui Ying object is then created the part assemblies object corresponding with described part assemblies container in buffer memory;
Wherein, described structure module (7) comprising: first makes up submodule (71), be used for reading the described cad file data of described buffer memory, with start address and the size of data of obtaining each part data, and make up described part container according to start address and the size of data of each described part data; Second makes up submodule (72), is used for reading described part data, with start address and the size of data of obtaining each described part assemblies data, and makes up described part assemblies container according to start address and the size of data of each described part assemblies data.
7. the dynamic data charger based on buffer memory according to claim 6 is characterized in that, described operational module (9) comprising:
Calling module one (91) is used for CAD system and calls described part container and described part assemblies container according to described operation requests;
Calling module two (92) is used for calling the described part object corresponding with it by described part container, simultaneously, calls the part assemblies object corresponding with it by described part assemblies container;
Load-on module (93) is used for according to described part object and described part assemblies object described cad file data being loaded on internal memory;
Return module (94), be used for CAD system and return described cad file data.
8. the dynamic data charger based on buffer memory according to claim 7, described calling module two (92) comprising:
Judge module (921) is used for judging whether to exist the described part assemblies object corresponding with described part assemblies container, wherein,
If exist, then call described part assemblies object by described part assemblies container;
If there is no, then return described buffer memory, in described buffer memory, make up the described part assemblies object corresponding with described part assemblies container, and after making up described part assemblies object success, call described part assemblies object by described part assemblies container.
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| CN101751443A (en) * | 2008-12-10 | 2010-06-23 | 鸿富锦精密工业（深圳）有限公司 | Data searching and processing system as well as method |
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