CN111241795B - Service form extraction method and device - Google Patents

Service form extraction method and device Download PDF

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Publication number
CN111241795B
CN111241795B CN202010012072.3A CN202010012072A CN111241795B CN 111241795 B CN111241795 B CN 111241795B CN 202010012072 A CN202010012072 A CN 202010012072A CN 111241795 B CN111241795 B CN 111241795B
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header
service
service form
feature
content
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CN111241795A (en
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刘勃
黄云峰
杨岳峰
周冬梅
向毅
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Hunan Teneng Boshi Technology Co ltd
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Hunan Teneng Boshi Technology Co ltd
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Abstract

The invention provides a service form extraction method and a device, when a service form is obtained, judging whether the service form contains a header or not; if so, extracting a service form containing the header characteristics according to the pre-configured header characteristics matched with the header; wherein the header feature comprises at least one field in the header. In the method, the same field or fields are usually contained in the header of the service form of the same type, and at least one field can be selected from the common fields for fuzzy matching, so that a plurality of service forms of the same type can be simultaneously extracted, and the flexibility and the universality of extracting the service forms are improved.

Description

Service form extraction method and device
Technical Field
The present invention relates to the field of form processing technologies, and in particular, to a method and an apparatus for extracting a service form.
Background
In the related technology, when the CAD drawing service form is required to be extracted, the header features of the service form are mainly configured in a whole character mode to be identified and extracted, in the mode, as long as the header of the CAD drawing service form has difference, the corresponding header features are required to be manually reconfigured to extract the corresponding service form, the flexibility and the universality of extracting the service form are poor, and if the fixedly configured header features are inaccurate, the service form cannot be extracted, so that the fault tolerance is low.
Disclosure of Invention
The invention aims to provide a service form extraction method and device so as to improve the flexibility and universality of service form extraction.
The invention provides a service form extraction method, which comprises the following steps: acquiring a drawing containing a business form; judging whether the service form contains a header or not; if the service form contains the header, extracting the service form containing the header feature from the drawing according to the pre-configured header feature matched with the header; wherein the header feature comprises at least one field in the header.
Further, the more the fields contained in the header feature, the higher the priority of the header feature.
Further, the method further comprises: if the service form does not contain the header and a preset limiting condition is met, extracting the service form containing the form content characteristics from the drawing according to the pre-configured form content characteristics matched with the service form content; wherein the limiting condition is used for limiting the maximum value of the number of rows and/or the maximum value of the number of columns of the service form; the form content feature comprises at least one field in the service form content.
Further, the more the fields contained in the form content feature, the higher the priority of the form content feature.
Further, the service form includes: covers, catalogs, material sheets or frames.
The invention provides a service form extraction device, which comprises: the acquisition module is used for acquiring a drawing containing a business form; the judging module is used for judging whether the service form contains a header or not; the first extraction module is used for extracting the business form containing the header feature from the drawing according to the pre-configured header feature matched with the header if the business form contains the header; wherein the header feature comprises at least one field in the header.
Further, the more the fields contained in the header feature, the higher the priority of the header feature.
Further, the device further comprises: the second extraction module is used for extracting the service form containing the content characteristics of the form from the drawing according to the pre-configured content characteristics of the form matched with the content of the service form if the service form does not contain the header and meets the preset limiting condition; wherein the limiting condition is used for limiting the maximum value of the number of rows and/or the maximum value of the number of columns of the service form; the form content feature comprises at least one field in the service form content.
Further, the more the fields contained in the form content feature, the higher the priority of the form content feature.
Further, the service form includes: covers, catalogs, material sheets or frames.
According to the service form extraction method and device provided by the invention, after the service form is obtained, whether the service form contains a header is judged; if so, extracting a service form containing the header characteristics according to the pre-configured header characteristics matched with the header; wherein the header feature comprises at least one field in the header. In the method, the same field or fields are usually contained in the header of the service form of the same type, and at least one field can be selected from the common fields for fuzzy matching, so that a plurality of service forms of the same type can be simultaneously extracted, and the flexibility and the universality of extracting the service forms are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a service form extraction method provided in an embodiment of the present invention;
FIG. 2 is a flowchart of another service form extraction method according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a service form extracting device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another service form extracting device according to an embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The traditional CAD drawing service form extraction is realized by a preliminary computer automatic extraction, but the extraction method is single, the header features of the fixed full-character configuration service forms are identified, so that each type of service form of each drawing needs to be configured, the service forms meeting different headers need to be reconfigured, the flexibility and the universality of the extracted service forms are poor, and the header features of the fixed full-character configuration must be completely consistent with the header of the service form to be matched with the corresponding service form, so that the fault tolerance is low; for the service form identification of each drawing, the header feature needs to be manually configured manually in advance, namely, each form is manually configured once, unless the headers of the two forms are identical, only a little difference of the headers needs to be manually configured once, automation cannot be realized, and the service form without the header cannot be identified.
Based on the above, the embodiment of the invention provides a service form extraction method and a device, and the technology can be applied to the extraction of various service forms.
For the convenience of understanding the present embodiment, first, a service form extraction method disclosed in the present embodiment is described in detail; as shown in fig. 1, the method comprises the steps of:
step S102, a drawing containing a business form is obtained.
The service forms are usually service forms in CAD drawings, and can also be service forms in drawings drawn by other drawing software, wherein the service forms can be catalog forms, material forms and the like, namely, the drawings can contain multiple types of service forms, the number of each type of service form can be multiple, and when the specified type of service form needs to be extracted, the drawings containing the type of service form need to be acquired first.
Step S104, judging whether the service form contains a header.
The header is usually arranged at the beginning of the service form and is used for classifying the properties of some problems; for example, in the case of a material table, the header typically includes: serial number, name, specification or number, etc.; some business forms contain the header, and some business forms do not contain the header, so after the drawing containing the business form is obtained, whether the business form contains the header needs to be judged first.
Step S106, if the service form contains the header, extracting the service form containing the header feature from the drawing according to the pre-configured header feature matched with the header; wherein the header feature comprises at least one field in the header.
The header feature generally comprises at least one field in the header of the service form to be extracted, and is generally preconfigured by service form demand personnel; extracting corresponding service characteristics as configuration aiming at the service forms of different types, wherein the service characteristics can comprise header characteristics and form content characteristics; in one industry, the general patterns of different types of service forms are usually determined by comparison, that is, whether the type of service form contains a header, if so, which information is contained in the header of the type of service form before configuring the header feature can be confirmed empirically; for example, taking a material table as an example, the header features of the material table may be obtained from the header fields of the material table, and the form content features may be obtained from the content of the material table; the header of the material table typically includes: information such as serial number, name, specification, unit and quantity, the header feature configured for the material table may be serial number, name, specification, unit and quantity, or name, specification, unit, etc.; when judging that the service form contains the header, extracting the service form containing the header feature from the drawing according to the pre-configured header feature of at least one field in the header containing the service form.
According to the service form extraction method provided by the embodiment of the invention, after the service form is obtained, whether the service form contains a header is judged; if so, extracting a service form containing the header characteristics according to the pre-configured header characteristics matched with the header; wherein the header feature comprises at least one field in the header. In the method, the same field or fields are usually contained in the header of the service form of the same type, and at least one field can be selected from the common fields for fuzzy matching, so that a plurality of service forms of the same type can be simultaneously extracted, and the flexibility and the universality of extracting the service forms are improved.
The embodiment of the invention also provides another service form extraction method, which is realized on the basis of the method of the embodiment; as shown in fig. 2, the method comprises the steps of:
step S202, a drawing containing a business form is obtained.
Step S204, judging whether the service form contains a header; if so, step S206 is performed; if not, step S208 is performed.
Step S206, if the service form contains the header, extracting the service form containing the header feature from the drawing according to the pre-configured header feature matched with the header; wherein the header feature comprises at least one field in the header.
In actual implementation, the more fields contained in a header feature, the higher the priority of the header feature; when one header feature cannot identify all service forms of a specified type, for example, a material table has multiple types of headers, and the same header fields in the material tables are not more, in order to identify all the material tables, one or more header features with decreasing priorities can be configured for the material tables, if multiple header features are configured for the material tables, the priority can be determined according to the number of common fields in the header included in the header features, the priority of the header feature which generally includes all the header fields in the specified material table is highest, and the priority of the corresponding header feature is gradually decreased as the number of the header fields included in the header feature is gradually decreased; the common field with the largest occurrence number in the header is used as the header feature, so that the service forms with the largest number in the service forms of the type can be matched, and the common field is the most common;
in general, fuzzy matching can be performed by using header features with lower priorities to extract a type of tables, and if a specified table needs to be extracted, the specified table can be extracted from the type of tables by full word matching with highest priorities; for example, taking a material table as an example, there are two material tables, namely a material table 1 and a material table 2, wherein the header fields in the material table 1 comprise serial numbers, names, models, specifications, units, numbers and remarks; the header fields in materials Table 2 include serial number, category, material name, material specification, design unit, quantity, singleton, purchasing unit, loss, total, material source, status, and remarks; the common header characteristics of two material tables, namely serial numbers, names, specifications, units and numbers, can be selected to configure the header characteristics, fuzzy matching is carried out through a regular expression based on the five fields in the header characteristics, and the material table 1 and the material table 2 can be extracted; the specific flow of fuzzy matching is as follows: reading each table according to the row, and if at least five columns in the row respectively contain five fields of 'serial number', 'name', 'specification', 'unit' and 'number', determining that the service table is a material table; full word matching is similar to fuzzy matching except that the header fields of the full word matching contain at least all of the same fields of the configured header fields to be successfully matched.
Through the common characteristics, two material tables 1 and 2 with different table heads can be extracted, and if one material table is required to be extracted accurately, a table head characteristic with higher priority can be added for full word matching, such as serial number, name, model, specification, unit, quantity and remark. By means of this header feature, the material table 1 can be matched exactly without being disturbed by the material table 2.
Step S208, if the service form does not contain the header and meets the preset limiting condition, extracting the service form containing the form content characteristics from the drawing according to the pre-configured form content characteristics matched with the service form content; wherein the limiting condition is used for limiting the maximum value of the number of rows and/or the maximum value of the number of columns of the service form; the form content feature includes at least one field in the service form content.
The service forms generally include: covers, catalogues, materials or frames, etc.; the form content features described above typically comprise at least one field in the content of the service form to be extracted, which are also typically pre-configured by the service form demander; in actual implementation, some business forms do not contain headers, such as covers or icon sheets; for the service form without the header, corresponding form content characteristics can be configured according to the content of the service form, and the service form with the form content characteristics can be extracted according to the form content characteristics; for example, taking the icon table as an example, the drawings designed by different design departments may be different, but the common character features in the icon table may still be extracted, for example: "school, audit, date, drawing number, design" etc. can be matched to the drawing list accurately by fuzzy matching of form content features and regular expressions.
In actual implementation, the more fields contained in a form content feature, the higher the priority of the form content feature; when one form content feature cannot identify all the service forms of the appointed type, for example, the drawing list contains various form contents, the same form contents in the drawing list are not more, in order to identify all the drawing lists, the form content features with descending priorities can be configured, namely, one or more form content features can be configured for the drawing list, if a plurality of form content features are configured for the drawing list, the priorities can be determined according to the number of common fields contained in the form content features, the priority of the form content features which usually contain all the form content fields in the appointed drawing list is highest, and the priority of the corresponding form content features is gradually reduced along with the gradual reduction of the number of the form content fields contained in the form content features; the common field with the largest number of occurrence times in the form content is used as the form content characteristic, so that the service form with the largest number in the service forms of the type can be matched, and is most universal.
In actual implementation, considering that the more the number of rows or columns of the service form without the header is, the more the content of the form in the service form is usually, the service form is extracted through the pre-configured limited form content characteristics, the probability of error occurrence is usually increased correspondingly, and in order to ensure the accuracy of extracting the service form, the maximum number of rows, the maximum number of columns, or the maximum number of rows and the maximum number of columns in the service form are usually limited when the service form is extracted according to the form content characteristics; if the limiting condition is not met, the service form is not extracted by the form content characteristics, and extraction failure is usually indicated; in the case where the maximum value of the number of rows and the maximum value of the number of columns are defined simultaneously, it is generally considered that the service form does not satisfy the defined condition as long as the number of rows of the service form exceeds the defined maximum value, or the number of columns exceeds the defined maximum value, or the number of rows and the number of columns exceed the respective defined maximum values simultaneously; for example, if the maximum number of lines of the service form is defined as 20 lines, the maximum number of columns is defined as 20 columns, and if the service form does not contain a header, and the number of lines of the service form exceeds 20 lines, or the number of columns exceeds 20 columns, or the number of lines exceeds 20 lines and the number of columns also exceeds 20 columns, the service form can be considered to not meet the limiting condition, and the service form is not extracted by using the form content characteristics, and then the extraction failure is usually indicated; the number of the defined rows or columns can be set according to actual requirements.
For a service form of a statistical type, such as a material table for statistical material information, because the meaning of each column is usually required to be identified in the material table, the corresponding service form can be searched and extracted through the header feature; and for the service forms without the header and the messy information, the corresponding service forms can be searched and extracted through the form content characteristics.
In order to adapt to different service scenes, if multiple service forms are required to be identified or extracted at the same time, corresponding header features or form content features can be respectively configured according to the types of the service forms; for example, the material table and the catalog table need to be identified or extracted at the same time, and corresponding header features can be respectively configured according to the material table and the catalog table.
According to the service form extraction method, when judging that the service form does not contain a header, the service form containing the form content characteristics can be extracted from the drawing according to the pre-configured form content characteristics matched with the service form content; wherein the form content feature comprises at least one field in the service form content, and the more fields are included in the header feature, the higher the priority of the header feature; the more fields contained in the form content features, the higher the priority of the form content features; according to whether the service form contains a header or not, the corresponding header feature or form content feature can be configured, so that the method is suitable for the service form containing the header and the service form which does not contain the header and has disordered form content information; and the header features or the form content features with different priorities can be set according to the requirements, so that the flexibility and the universality of extracting the service form are improved.
Referring to fig. 3, a schematic structural diagram of a service form extraction apparatus includes an obtaining module 30, configured to obtain a service form; a judging module 31, configured to judge whether the service form includes a header; a first extracting module 32, configured to extract, if the service form includes a header, the service form including the header feature according to a pre-configured header feature matched with the header; wherein the header feature comprises at least one field in the header.
The service form extraction device provided by the embodiment of the invention judges whether the service form contains a header or not after acquiring the service form; if so, extracting a service form containing the header characteristics according to the pre-configured header characteristics matched with the header; wherein the header feature comprises at least one field in the header. In the device, the same field or fields are usually contained in the header of the service forms of the same type, and at least one field can be selected from the common fields for fuzzy matching, so that a plurality of service forms of the same type can be simultaneously extracted, and the flexibility and the universality of extracting the service forms are improved.
Further, the more fields contained in the header feature, the higher the priority of the header feature.
Further, as shown in fig. 4, the apparatus further includes: a second extracting module 33, configured to extract, if the service form does not include a header and satisfies a preset limiting condition, a service form including a form content feature according to a pre-configured form content feature that matches the service form content; the limiting conditions are used for limiting the maximum value of the number of lines and/or the maximum value of the number of columns of the service form; the form content feature comprises at least one field in the business form content.
Further, the more fields contained in the form content feature, the higher the priority of the form content feature.
Further, the service form includes: covers, catalogs, material sheets or frames.
The service form extraction device provided by the embodiment of the invention has the same implementation principle and the same technical effects as those of the embodiment of the service form extraction method, and for the sake of brief description, reference may be made to corresponding contents in the embodiment of the service form extraction method where the embodiment of the service form extraction device is not mentioned.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims (8)

1. A method for extracting a service form, the method comprising:
acquiring a drawing containing a business form;
judging whether the service form contains a header or not;
if the service form contains the header, extracting the service form containing the header feature from the drawing according to the pre-configured header feature matched with the header; wherein the header feature comprises at least one field in the header;
the method further comprises the steps of:
if the service form does not contain the header and a preset limiting condition is met, extracting the service form containing the form content characteristics from the drawing according to the pre-configured form content characteristics matched with the service form content; wherein the limiting condition is used for limiting the maximum value of the number of rows and/or the maximum value of the number of columns of the service form; the form content features include at least one field in the service form content; wherein the number of form content features is one or more.
2. The method of claim 1, wherein the more the fields are included in the header feature, the higher the priority of the header feature.
3. The method of claim 1, wherein the more the fields are included in the form content feature, the higher the priority of the form content feature.
4. The method of claim 1, wherein the service form comprises: covers, catalogs, material sheets or frames.
5. A service form extraction apparatus, the apparatus comprising:
the acquisition module is used for acquiring a drawing containing a business form;
the judging module is used for judging whether the service form contains a header or not;
the first extraction module is used for extracting the business form containing the header feature from the drawing according to the pre-configured header feature matched with the header if the business form contains the header; wherein the header feature comprises at least one field in the header;
the apparatus further comprises:
the second extraction module is used for extracting the service form containing the content characteristics of the form from the drawing according to the pre-configured content characteristics of the form matched with the content of the service form if the service form does not contain the header and meets the preset limiting condition; wherein the limiting condition is used for limiting the maximum value of the number of rows and/or the maximum value of the number of columns of the service form; the form content features include at least one field in the service form content; wherein the number of form content features is one or more.
6. The apparatus of claim 5, wherein the more the fields are included in the header feature, the higher the priority of the header feature.
7. The apparatus of claim 5, wherein the more the fields are included in the form content feature, the higher the priority of the form content feature.
8. The apparatus of claim 5, wherein the service form comprises: covers, catalogs, material sheets or frames.
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Denomination of invention: Business form extraction method and device

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