CN111506941B - BIM technology-based assembly type building PC component storage method and system - Google Patents
BIM technology-based assembly type building PC component storage method and system Download PDFInfo
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- CN111506941B CN111506941B CN202010178480.6A CN202010178480A CN111506941B CN 111506941 B CN111506941 B CN 111506941B CN 202010178480 A CN202010178480 A CN 202010178480A CN 111506941 B CN111506941 B CN 111506941B
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- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/13—Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
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- G06—COMPUTING; CALCULATING OR COUNTING
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- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/22—Indexing; Data structures therefor; Storage structures
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- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/0608—Saving storage space on storage systems
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- G06—COMPUTING; CALCULATING OR COUNTING
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- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
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Abstract
The invention relates to a method and a system for storing PC (personal computer) components of an assembly building based on BIM (building information modeling) technology, wherein the method comprises the steps of dividing the components into component information, a shared part, a difference part and a correlation characteristic, wherein the shared part is a part with the same shape in at least two components, the difference part is a part except for the shared part in the components with the shared part, and the correlation characteristic is used for splicing the difference part on the shared part in a matching way; storing the component information, the common portion, and the difference portion, respectively; the associated characteristic is partially attached to the common portion and the difference portion, and partially stored together with the member information. There is an advantage in that the size of the storage capacity of the database can be reduced without reducing the number of components.
Description
Technical Field
The invention relates to the technical field of BIM software, in particular to a method and a system for storing an assembly type building PC component based on BIM technology.
Background
The building information model (building information model) is a new tool in architecture, engineering and civil engineering. The term building information model or building information model was created by Autodesk. It is used to describe the computer aided design mainly based on three-dimensional figure, object guide and architecture. At first this concept was generalized by jerrylaisser to the public by the technology provided by Autodesk, pentry systems software corporation, grapheisoft.
In the field of BIM technology, a database of BIM components has been formed, and these components are classified for users to choose and match to form the final BIM drawing. Due to the construction of the database, a user does not need to manually draw a required structure
The drawing time of the user is solved to a great extent.
However, the BIM components are of many kinds, including building, construction, decoration, water supply and drainage, heating and ventilation, electric, road and bridge construction
Workers, etc., and there are hundreds or thousands of components in any one category for a user to sort out the appropriate components, databases
The greater the number of components, the greater the user's choice, but the corresponding will result in a greater amount of capacity to be occupied by the database.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a method for storing PC components of a fabricated building based on BIM technology, which has the advantage of reducing the size of the storage capacity of a database without reducing the number of components.
The above object of the present invention is achieved by the following technical solutions:
a method of storing PC components of a fabricated building based on BIM technology, the method comprising:
dividing the member into member information, a shared portion, a different portion, and an association characteristic, the shared portion being a portion of at least two members having an identical shape, the different portion being a portion of the member having the shared portion other than the shared portion, the difference portion being a portion of the member having the shared portion, the association characteristic being for fitting-splicing the different portion to the shared portion; storing the component information, the common portion, and the difference portion, respectively; the associated characteristic portion is attached to the common portion and the difference portion, and the associated characteristic portion is stored in common with the component information.
Further, the volume of the common portion is greater than a volume threshold ratio of the overall volume of at least one component with which it is associated.
Further, when the members do not have a common portion, the members are individually stored.
Further, the component information includes a component code, a component name, and default attributes.
Further, the association characteristics include calling information, a proportional relationship and a position matching relationship, the calling information is used for calling the common part and the difference part corresponding to the member information, the proportional relationship is used for scaling the common part or the difference part to adapt to the size ratio between the common part and the difference part, and the position matching relationship is used for splicing the difference part at a certain angle on the corresponding position of the common part.
Further, the positional matching relationship includes a first common matching point, a second common matching point and a third common matching point provided on the common portion, and a first differential matching point provided on the differential portion for overlapping the first common matching point, a second differential matching point for overlapping the second common matching point and a third differential matching point for overlapping the third common matching point.
The invention also aims to provide a storage system of the PC component of the fabricated building based on the BIM technology, which has the advantage of reducing the capacity of a database under the condition of not reducing the number of components.
The second purpose of the invention is realized by the following technical scheme:
a system for storing PC components of a fabricated building based on BIM technology, the system comprising:
the component information storage module is used for storing component information;
the shared part storage module is used for storing shared parts, and the shared parts are parts with completely identical shapes in at least two components;
a difference portion storage module for storing a difference portion, which is a portion other than the shared portion in the member having the shared portion;
the member further includes an associated characteristic stored in the common portion storage module in partial adherence to the common portion, stored in the difference portion storage module in partial adherence to the difference portion, and stored in the member information storage module in common with the member information.
Further, the system further comprises: a single component storage module for individually storing components when there is no shared portion of the components.
In summary, the present invention includes at least one of the following beneficial effects:
the components are divided into the shared part and the difference part, so that the parts with the same shape in the components are stored only once, the difference part is stored separately, and the components are spliced to form the whole components through the associated characteristics when being called, so that the storage capacity occupied by storage is reduced compared with the case that all the components are stored as the whole components.
Drawings
FIG. 1 is a flow chart of the method of the present invention;
fig. 2 is a block diagram of the system architecture of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The invention discloses a storage method of an assembly type building PC component based on BIM technology, as shown in figure 1, the method comprises the following steps:
s101: the members are divided into member information, a shared portion, a differential portion, and a relation characteristic, the shared portion being a portion of at least two members having an identical shape, the differential portion being a portion of the members having the shared portion other than the shared portion, the relation characteristic being for fitting and splicing the differential portion to the shared portion.
S102: storing the component information, the common portion, and the difference portion, respectively;
s103: the association characteristic portion is attached to the common portion and the difference portion, and the portion is stored together with the member information.
Wherein the component information includes a component code, a component name, and default attributes.
The common portion and the differential portion refer to a three-dimensional structure of the member.
The common part is not to be determined as a common part as long as at least two members have the same shape, and if only 1% of the members are the same, the above-described splitting operation is performed, which is less significant. Therefore, a volume ratio threshold value is set, and the volume of the common part is larger than the product of the whole volume of at least one member and the preset volume threshold value ratio, so that the common part and the difference part can be separated. It should be understood that, for example, with two components, here designated component a and component B, the volume fraction threshold is set at 50%, assuming a total fractional volume of 30% of the volume of component a and a total fractional volume of 60% of the volume of component B, although the total fractional area represents only 30% of the volume of component a, it is still considered a common part of component a and component B since it represents 60% of the volume of component B. Assuming that the component volume is proportional to the storage capacity occupied by the component file, the storage capacity occupied by the component a is 2MB, and the storage capacity occupied by the component B is 1MB, the storage capacity occupied by the shared portion is 0.6MB, and the storage capacity occupied by the component a and the component B in the case of conventional mutually independent storage is 4MB, whereas in the method of the present invention, the storage capacity occupied is 3.4MB, which saves the storage capacity of 0.6MB in comparison, that is, saves 15% of the storage space.
When the members do not have a shared part, namely the members are not suitable for being split, the members are stored separately as separate files in the same way as the traditional storage method.
The correlation characteristics comprise calling information, a proportional relation and a position matching relation. The calling information is used for calling the common part and the difference part corresponding to the member information, the proportional relation is used for scaling the common part or the difference part to adapt to the size proportion between the common part and the difference part, and the position matching relation is used for splicing the difference part at a certain angle on a corresponding position of the common part.
The calling information is associated with the component information, and the calling information calls the shared part and the difference part of the component corresponding to the component information to form the component.
However, it is not enough to call the common part and the difference part, and it is also necessary to know how to splice the two parts, and what the position, direction, angle and size of the splice are.
In an embodiment of the invention, the adaptation to account for common and difference parts is achieved by a proportional relationship. The common portion or the differential portion may be scaled according to the scaling relationship. In practice, the common portions between the two members may be the same shape but different sizes. The size of the component is a standard size under certain rules. The difference portion is generally maintained at a standard size while the common portion is stored at a size, and then the proportional relationship between the common portion and the difference portion is calculated. Therefore, when the component is called, the shared part is only required to be scaled according to the proportional relation, the size which is the same as the matched size of the different part can be obtained, and the matched component is also the standard size.
Through the position matching relation, the problems of splicing position, direction and angle are solved. In an embodiment of the invention, the above-mentioned problem is solved in a very simple manner.
The positional mating relationship includes a first common mating point, a second common mating point, and a third common mating point provided on the common portion, and a first differential mating point provided on the differential portion for overlapping the first common mating point, a second differential mating point for overlapping the second common mating point, and a third differential mating point for overlapping the third common mating point.
The three points perfectly solve the problems of position, direction and angle during matching. According to the principle that three points determine a plane, the splicing surface of the common part and the splicing surface of the difference part are determined. The angle is also determined. And the three common matching points and the three different matching points are correspondingly overlapped one by one, so that the splicing positions and angles of the different parts and the common parts are determined.
In other embodiments, the problem of the positional relationship may be solved in other ways. If the splicing surface and the two matching points are respectively arranged on the shared part and the difference part. The matching direction is determined through the splicing surface, and the matching position and the matching angle are determined through the two points.
Based on the above embodiment, further optimization can be performed on the basis of the above embodiment. The above embodiment is based on an integral member and is subjected to the decomposition of the common portion and the differential portion. In practice, one monolithic member may have common portions with all of the monolithic members and the common portions may not be coincident. A unitary member may actually be comprised of multiple common portions and one or more different portions. It should be understood that there are, for example, three members, designated herein as member C, member D and member E, assuming that member C has a first common portion with member D of 30%, member C has a second common portion with member E of 40%, and the first common portion is not coincident with the second common portion. Assume that the storage capacity occupied by component C, component D, and component E is 1MB each. The total storage capacity of the individual storage components C, D and E was 3MB. The method of the invention can reduce the total storage capacity to 2.3MB, save the storage capacity of 0.7MB, namely save 35% of storage space, and save the storage space greatly.
The implementation principle of the embodiment is as follows: the components are divided into the shared part and the difference part, so that the parts with the same shape in the components are stored only once, the difference part is stored separately, and the components are spliced to form the whole components through the associated characteristics when being called, so that the storage capacity occupied by storage is reduced compared with the case that all the components are stored as the whole components.
The invention also provides a storage system of the assembly type building PC component based on the BIM technology, and the storage system of the assembly type building PC component based on the BIM technology is in one-to-one correspondence with the storage method of the assembly type building PC component based on the BIM technology in the embodiment. As shown in fig. 2, the storage system of the prefabricated building PC component based on the BIM technology includes a component information storage module, a common part storage module, a difference part storage module, and a single component storage module. The functional modules are explained in detail as follows:
the component information storage module is used for storing component information;
a common portion storage module for storing a common portion which is a shape completely identical in at least two members
The same section;
a difference portion storage module for storing a difference portion, which is a portion other than the shared portion in the member having the shared portion;
the member further includes an association characteristic stored in the common portion storage module in part in attachment to the common portion and in part in attachment to the difference portion, and the association characteristic stored in the difference portion storage module in part in common with the member information.
A single component storage module for individually storing components when there is no shared portion of the components.
For specific limitations of the storage system of the fabricated building PC component based on the BIM technology, reference may be made to the above limitations of the storage method of the fabricated building PC component based on the BIM technology, which are not described herein again. The various modules in the memory system of the fabricated building PC component based on BIM technology described above may be implemented in whole or in part by software, hardware, and combinations thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
The embodiments of the present invention are all preferred embodiments of the present invention, and the scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (3)
1. A method for storing PC components of an assembly building based on BIM technology is characterized by comprising the following steps:
dividing the member into member information, a shared portion, a different portion, and an association characteristic, the shared portion being a portion of at least two members having an identical shape, the different portion being a portion of the member having the shared portion other than the shared portion, the difference portion being a portion of the member having the shared portion, the association characteristic being for fitting-splicing the different portion to the shared portion;
storing the component information, the common portion, and the difference portion, respectively;
the associated characteristic portion is attached to a common portion and a difference portion, the associated characteristic portion being stored in common with the member information;
the volume of the common portion is greater than the product of the overall volume of at least one member and a preset volume threshold ratio;
when the members do not have a common part, the members are stored separately;
the component information comprises a component code, a component name and default attributes;
the association characteristics comprise calling information, a proportional relation and a position matching relation, wherein the calling information is used for calling a common part and a difference part corresponding to the component information, the proportional relation is used for scaling the common part or the difference part to adapt to the size ratio between the common part and the difference part, and the position matching relation is used for splicing the difference part at a corresponding position of the common part at a certain angle;
the positional mating relationship includes a first common mating point, a second common mating point, and a third common mating point provided on the common portion, and a first differential mating point provided on the differential portion for overlapping with the first common mating point, a second differential mating point for overlapping with the second common mating point, and a third differential mating point for overlapping with the third common mating point.
2. A system for storing prefabricated building PC components based on BIM technology according to claim 1, wherein the system comprises:
the component information storage module is used for storing component information;
the shared part storage module is used for storing shared parts, and the shared parts are parts with completely identical shapes in at least two components;
a difference portion storage module for storing a difference portion, which is a portion other than the shared portion, of the member having the shared portion;
the member further comprises an association characteristic, the association characteristic being stored in the common portion storage module in part in adherence to the common portion,
the associated characteristic part is stored in a difference part storage module in association with a difference part, and the associated characteristic part is stored in a component information storage module together with the component information.
3. A BIM technology based storage system for PC members of prefabricated buildings, as claimed in claim 2,
the system further comprises: a single component storage module for individually storing components when there is no shared portion of the components.
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| CN110826123A (en) * | 2019-10-14 | 2020-02-21 | 中冶京诚工程技术有限公司 | BIM component resource system and BIM component calling method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8352716B1 (en) * | 2008-01-16 | 2013-01-08 | American Megatrends, Inc. | Boot caching for boot acceleration within data storage systems |
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| US6519601B1 (en) * | 1996-05-22 | 2003-02-11 | Universitaire Ziekenhuizen Leuven | Relational database compiled/stored on a memory structure providing improved access through use of redundant representation of data |
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