Establishment method of digital tower crane information base

Abstract

The invention provides a method for establishing a digital tower crane information base, which comprises the following steps of: S1, recognizing characters in a tower crane specification based on a character recognition technology so as to extract basic geometric information of a tower crane; s2, carrying out full-text recognition on the tower crane specification based on a character recognition technology and an image recognition technology so as to extract arm geometric information under each tower crane form; s3, identifying a wall-attached image of a wall-attached page of the tower crane specification based on an image identification technology to extract wall-attached geometric information of the tower crane; and S4, based on the basic geometric information of the tower crane, the arm geometric information of the tower crane and the wall-attached geometric information of the tower crane, a digital tower crane information base is constructed and formed. The geometric information of the tower crane is digitalized to form the digital tower crane information base, and technicians can quickly retrieve and query required information based on the digital tower crane information base, so that the searching time is greatly shortened, and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a method for establishing a digital tower crane information database. Background Art

[0002] As an indispensable lifting equipment in construction, tower cranes are increasingly widely used. However, there is a problem in the use and management of tower cranes: the geometric information of tower cranes is mainly stored in paper instructions, which brings many inconveniences to query, update and maintenance. Traditionally, construction site technicians need to frequently check the geometric information of tower cranes, but paper instructions are inconvenient to carry and the query efficiency is low. Information sharing is difficult: Multiple departments on the construction site need to use the geometric information of the tower crane, and paper instructions are difficult to share efficiently. In addition, paper instructions are easily damaged or lost, resulting in incomplete geometric information of the tower crane, which affects the safety and efficiency of the construction site.

[0003] With regard to the problem of low query efficiency in obtaining geometric information of a tower crane based on paper instructions in the prior art, those skilled in the art have been looking for solutions. Summary of the invention

[0004] The object of the present invention is to provide a method for establishing a digital tower crane information database to solve the problem of low query efficiency in obtaining geometric information of a tower crane based on paper instructions.

[0005] In order to solve the above technical problems, the present invention provides a method for establishing a digital tower crane information database, and the method for establishing a digital tower crane information database comprises:

[0006] S1: Recognize the text in the tower crane manual based on text recognition technology to extract the basic geometric information of the tower crane;

[0007] S2: Full text recognition of the tower crane manual based on text recognition technology and image recognition technology to extract arm geometry information under various tower crane types;

[0008] S3: Recognize the wall attachment image of the wall attachment page of the tower crane manual based on image recognition technology to extract the wall attachment geometric information of the tower crane;

[0009] S4: Based on the basic geometric information of the tower crane, the arm geometric information of the tower crane and the wall-attached geometric information of the tower crane, a digital tower crane information database is constructed.

[0010] Optionally, in the method for establishing the digital tower crane information database, S1 includes the following sub-steps:

[0011] The cover of the tower crane manual is identified based on text recognition technology to extract information such as the tower crane model, lifting torque, manufacturer name, and maximum free-standing height;

[0012] Based on the text recognition technology, the tower body chapter of the tower crane manual is identified to extract the basic section size and standard section size;

[0013] Identify the keyword "hook length" based on text recognition technology and extract the height value from the bottom of the hook to the boom;

[0014] The basic geometric information of the tower crane is constructed based on the tower crane model, lifting torque, manufacturer name, information on the maximum free-standing height, foundation section size, standard section size, and the height from the bottom of the hook to the boom.

[0015] Optionally, in the method for establishing the digital tower crane information database, S2 includes the following sub-steps:

[0016] Based on the text recognition technology, the keywords and boom section pages of the tower crane type in the tower crane manual are identified to extract the configuration of each boom section of each tower crane type and establish the corresponding boom length information;

[0017] Recognize the boom image on the boom specification page in the tower crane manual based on image recognition technology to extract the boom name, boom length and boom height to establish boom information;

[0018] Based on the arm length information and boom information, the arm geometry information of the corresponding tower crane form is constructed.

[0019] Optionally, in the method for establishing the digital tower crane information library, when the tower crane is a flat-top tower crane or a tower-head tower crane, the arm length information includes: lifting arm length, balance arm length, lifting radius and detailed geometric dimensions.

[0020] Optionally, in the method for establishing the digital tower crane information database, the process of obtaining the boom length is as follows:

[0021] The boom image is identified based on image recognition technology, and the maximum horizontal dimension identified is marked as the boom length.

[0022] Optionally, in the method for establishing the digital tower crane information database, the process of obtaining the boom height is as follows:

[0023] The boom image is identified based on image recognition technology, and the identified maximum longitudinal direction is marked as the boom height.

[0024] Optionally, in the method for establishing the digital tower crane information database, in S3, the tower crane wall-attached geometric information includes: the serial number of each attached wall, the number of sections between the attached wall and the previous attached wall, and the number of cantilever sections above the attached wall.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1) By digitizing the geometric information of the tower crane to form a digital tower crane information database, technicians can quickly retrieve and query the required information based on the digital tower crane information database, which greatly shortens the search time and improves work efficiency.

[0027] 2) Use text recognition technology and image recognition technology to automatically extract information and establish a digital tower crane information database, which reduces manual operation errors and ensures the accuracy of tower crane geometric information.

[0028] 3) Reduced reliance on paper instructions, reduced printing, storage and transportation costs, and achieved green environmental protection.

[0029] 4) The digital tower crane information database can be easily copied to achieve efficient information sharing. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The above and other objects, features and advantages of the present disclosure will become more apparent through a more detailed description of exemplary embodiments of the present disclosure in conjunction with the accompanying drawings, wherein like reference numerals generally represent like components throughout the exemplary embodiments of the present disclosure.

[0031] Figure 1 is a flow chart of a method for establishing a digital tower crane information database in one embodiment of the present invention;

[0032] Figure 2 It is a tower crane basic geometric information interface of a tower crane information library constructed in one embodiment of the present invention;

[0033] Figure 3 It is a tower crane arm geometric information interface of a tower crane information library constructed in one embodiment of the present invention;

[0034] Figure 4 It is a tower crane wall-attached geometric information interface of a tower crane information library constructed in one embodiment of the present invention;

[0035] Figure 5 It is an interface for creating geometric information of tower crane attached to a wall in one embodiment of the present invention;

[0036] Figure 6 It is the boom specification page of the tower crane manual;

[0037] Figure 7 It is the boom section page of the tower crane manual;

[0038] Figure 8 It is the wall leaflet of the tower crane manual. DETAILED DESCRIPTION

[0039] The following is a further detailed description of the method for establishing a digital tower crane information database proposed by the present invention in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the accompanying drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0040] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0041] In the description of the invention, it is necessary to understand that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the invention.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0043] In the invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to the specific circumstances.

[0044] Please refer to Figures 1 to 8 The method for establishing the digital tower crane information database comprises the following steps:

[0045] First, please refer to Figure 2 , executing step S1, recognizing the text in the tower crane manual based on the text recognition technology to extract the basic geometric information of the tower crane; wherein S1 includes the following sub-steps:

[0046] S11: Recognize the cover of the tower crane manual based on text recognition technology to extract information such as tower crane model, lifting torque, manufacturer name, and free-standing maximum height;

[0047] S12: Recognize the tower body chapter of the tower crane manual based on text recognition technology to extract the basic section size and standard section size;

[0048] S13: identifying the keyword “hook length” based on text recognition technology, and extracting the height value from the bottom of the hook to the boom;

[0049] S14: The basic geometric information of the tower crane is constructed based on the tower crane model, lifting torque, manufacturer name, information on the maximum free-standing height, foundation section size, standard section size, and the height value from the bottom of the hook to the boom.

[0050] Specifically, first extract all the text of the tower crane manual. If it is a scanned version, use optical character recognition (OCR) technology to obtain the text. Then identify the tower crane model, lifting torque, manufacturer name, free-standing maximum height, etc. from the cover content. Then locate the tower body section of the manual and extract the foundation section size and standard section size. Finally, identify the "hook length" keyword and extract the height value from the bottom of the hook to the boom.

[0051] Next, please refer to Figure 3 , Figure 6 and Figure 7 , executing step S2, recognizing the full text of the tower crane manual based on the text recognition technology and the image recognition technology to extract the arm geometry information of each tower crane type; wherein S2 includes the following sub-steps:

[0052] S21: Figure 7 As shown, the keywords and boom section pages of the tower crane type in the tower crane manual are identified based on the text recognition technology to extract each boom section configuration of each tower crane type and establish the corresponding boom length information;

[0053] S22: Figure 6 As shown, the boom image on the boom specification page in the tower crane manual is recognized based on the image recognition technology to extract the boom name, boom length and boom height to establish the boom information;

[0054] Specifically: The process of obtaining the boom length is as follows: the boom image is recognized based on the image recognition technology, and the recognized maximum horizontal value is marked as the boom length. The process of obtaining the boom height is as follows: the boom image is recognized based on the image recognition technology, and the recognized maximum vertical value is marked as the boom height.

[0055] S23: Based on the arm length information and the boom information, construct arm geometry information of the corresponding tower crane form.

[0056] Specifically, the boom image is extracted from the boom specification page of the manual. The boom specification recognizes the name text, and the maximum horizontal annotation is the boom length through image recognition, and the maximum vertical annotation is the boom height through image recognition. Each boom forms a <name-length L-height H> triple. Then the keywords of the tower crane form are identified from the full text of the manual. If "flat-top type" appears, the current form is set to flat-top type. If "tower head type" appears, the current form is set to tower head type. Further read the boom section page of the manual, and establish a boom length information library for each boom section configuration.

[0057] Here, the tower crane types include: flat-top tower crane and tower-head tower crane.

[0058] When the tower crane is a flat-top tower crane, the arm length information includes: boom length, balance arm length, lifting radius and detailed geometric dimensions. Among them, the balance arm length is directly extracted through keyword recognition; balance arm length = Σ length of all boom sections L (i.e., balance arm length is equal to the sum of all boom section lengths), and then the boom length = balance arm length + boom end section length (i.e., boom length is equal to the sum of balance arm length and boom end section length); finally, the drawings of the boom section configuration of each boom are identified, and the following are calculated: boom height 1 = max {boom section height H}, boom height 2 = min {boom section height H}, and the distance from the variable section point to the tower body = Σ length of the main boom section L.

[0059] When the tower crane is a tower head type tower crane, the arm length information includes the boom length, balance arm length, lifting radius, and detailed geometric dimensions. Among them, the balance arm length is directly extracted through keyword recognition. Balance arm length = Σ length of all arm sections L, then calculate the boom length = balance arm length + arm end section length, and finally identify the drawings of the arm section configuration of each boom, identify the length from the tie rod point to the tower body, record it as the tie rod point D, and identify the tower head height HD. And calculate the tie rod length = sqrt(D^2+HD^2).

[0060] Next, please refer to Figure 4 and Figure 5 , execute step S3, identify the wall attachment image of the wall attachment page of the tower crane manual based on image recognition technology to extract the tower crane wall attachment geometric information; wherein, the tower crane wall attachment geometric information includes: the serial number N of each attached wall, the number of sections S between the attached wall and the previous attached wall, and the number of cantilever sections E above the attached wall. Specifically: first, create a separate record for the first attached wall in the tower crane information database. Then merge the second and above similar attached walls, that is, if the attached walls with adjacent serial numbers N have the same S and E, they can be merged and recorded as the same working height range. Finally, create a record for each working height range in the tower crane information database.

[0061] Next, step S4 is executed to construct a digital tower crane information library based on the basic geometric information of the tower crane, the arm geometric information of the tower crane and the wall-attached geometric information of the tower crane.

[0062] Example: Please refer to Figure 8 , Figure 8 The number of sections between the 3rd, 4th, 5th and 6th attached walls and the previous attached wall is S=8, and the number of cantilever sections above the attached wall is E=11, then they can be merged into the same record: "The lower limit of the working height range is the height of the 3rd attached wall, which is 84.8 meters, and the upper limit of the working height range is the height of the 6th attached wall, which is 182.8 meters. The distance between attached walls is 8 meters, and the cantilever height is 11 meters."

[0063] It should be noted that, for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the described order of actions, because according to the present application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

[0064] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0065] The present invention has the following advantages:

[0066] 1) By digitizing the geometric information of the tower crane to form a digital tower crane information database, technicians can quickly retrieve and query the required information based on the digital tower crane information database, which greatly shortens the search time and improves work efficiency.

[0067] 2) Use text recognition technology and image recognition technology to automatically extract information and establish a digital tower crane information database, which reduces manual operation errors and ensures the accuracy of tower crane geometric information.

[0068] 3) Reduced reliance on paper instructions, reduced printing, storage and transportation costs, and achieved green environmental protection.

[0069] 4) The digital tower crane information database can be easily copied to achieve efficient information sharing.

[0070] The above description is only a description of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention. Any changes or modifications made by a person skilled in the art in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A method for establishing a digital tower crane information database, characterized in that: include: S1: Recognize the text in the tower crane manual based on text recognition technology to extract the basic geometric information of the tower crane; S2: Full text recognition of the tower crane manual based on text recognition technology and image recognition technology to extract arm geometry information under various tower crane types; S3: Recognize the wall attachment image of the wall attachment page of the tower crane manual based on image recognition technology to extract the wall attachment geometric information of the tower crane; S4: Based on the basic geometric information of the tower crane, the arm geometric information of the tower crane and the wall-attached geometric information of the tower crane, a digital tower crane information database is constructed.

2. The method for establishing a digital tower crane information database according to claim 1, characterized in that: S1 includes the following sub-steps: The cover of the tower crane manual is identified based on text recognition technology to extract information such as the tower crane model, lifting torque, manufacturer name, and maximum free-standing height; Based on the text recognition technology, the tower body chapter of the tower crane manual is identified to extract the basic section size and standard section size; Identify the keyword "hook length" based on text recognition technology and extract the height value from the bottom of the hook to the boom; The basic geometric information of the tower crane is constructed based on the tower crane model, lifting torque, manufacturer name, information on the maximum free-standing height, foundation section size, standard section size, and the height from the bottom of the hook to the boom.

3. The method for establishing a digital tower crane information database according to claim 1, characterized in that: S2 includes the following sub-steps: Based on the text recognition technology, the keywords and boom section pages of the tower crane type in the tower crane manual are identified to extract the configuration of each boom section of each tower crane type and establish the corresponding boom length information; Recognize the boom image on the boom specification page in the tower crane manual based on image recognition technology to extract the boom name, boom length and boom height to establish boom information; Based on the arm length information and boom information, the arm geometry information of the corresponding tower crane form is constructed.

4. The method for establishing a digital tower crane information database as claimed in claim 3, characterized in that: When the tower crane is a flat-top tower crane or a tower-top tower crane, the arm length information includes: lifting arm length, balance arm length, lifting radius and detailed geometric dimensions.

5. The method for establishing a digital tower crane information database as claimed in claim 3, characterized in that: The process of obtaining the boom length is as follows: The boom image is identified based on image recognition technology, and the maximum horizontal dimension identified is marked as the boom length.

6. The method for establishing a digital tower crane information database as claimed in claim 3, characterized in that: The process of obtaining the boom height is as follows: The boom image is identified based on image recognition technology, and the identified maximum longitudinal direction is marked as the boom height.

7. The method for establishing a digital tower crane information database according to claim 1, characterized in that: In S3, the geometric information of the tower crane attached to the wall includes: the serial number of each attached wall, the number of sections between the attached wall and the previous attached wall, and the number of cantilever sections above the attached wall.

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