CN115730558A - Method for checking packaging parameters of integrated component model analysis and extraction algorithm - Google Patents
Method for checking packaging parameters of integrated component model analysis and extraction algorithm Download PDFInfo
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- CN115730558A CN115730558A CN202211408866.7A CN202211408866A CN115730558A CN 115730558 A CN115730558 A CN 115730558A CN 202211408866 A CN202211408866 A CN 202211408866A CN 115730558 A CN115730558 A CN 115730558A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention relates to a method for checking packaging parameters of an integrated component model analysis and extraction algorithm, belonging to the field of electronic design. The method comprises the following steps: in the business process of extracting the component packaging parameters, analyzing the company-level components according to the mode of a data object, and dividing the components into a shortcut component and a classic component according to the difference of the data importance level and the access form; defining a component recognition algorithm and a component extraction algorithm based on industry experience of an electronic circuit technology and a hardware design method; the component identification algorithm is used for extracting an identification field of the shortcut component, and the identification field reflects the normalization packaging parameters from different suppliers and different supplier product families; the element extraction algorithm is used for mapping the identification field to the packaging parameter model base; wherein, for the shortcut component, a component identification algorithm is adopted; for classical elements, a table lookup comparison is used.
Description
Technical Field
The invention relates to a method for checking packaging parameters of an integrated component model analysis and extraction algorithm, belonging to the field of electronic design.
Background
Since the 60 s of the twentieth century, the electronic design CAD technology developed vigorously, emerging a large number of instrumental principles and methods that serve the design business of printed circuit boards. Component package parameters are critical data for the design and manufacture of the connection printed circuit board. When the packaging parameters are wrong, the element can not be reliably welded on the corresponding point of the printed board, and the printed board of the whole batch is scrapped; even if welding is successful, abnormity can occur in a printed board assembly link and a power-on debugging link, so that system-level safety problems, quality risks and cost loss which is difficult to evaluate are caused. To this end, conventional CAD techniques contemplate building a management database for component encapsulation. Therefore, the database is used in printed board design, comparison before board projection is facilitated, correct mapping relation between the type of the component device and packaging information is guaranteed, and risks are avoided.
However, the conventional method of inspecting the package of the component has the following drawbacks:
firstly, a database with a certain capacity needs to be established, and with the continuous development of new projects of development teams or the richness of circuit board types, the packaging number basically increases linearly along with the selection number of components, so the establishment and maintenance cost of the database is also higher.
Secondly, the check period of the lookup table method generally increases with the number of the selected types of the components, and because each type of information needs to be compared as a key value, the time cost of occupying processor resources, storage resources and network resources is limited by the capacity of the database.
Thirdly, the security in the data access process needs to be designed, especially in the aspect of data storage, and the addition of the regular refreshing of the aged data is a necessary operation.
Disclosure of Invention
The purpose of the invention is as follows:
to explore more efficient and reliable inspection methods, consider the concept of vector graphics in computer graphics. The vector diagram is an object-oriented graphic described by straight lines and curved lines, and the basic elements constituting the graphic are obtained by calculation using mathematical formulas. Because the vector diagram is packaged by an algorithm instead of dot matrix data, compared with a bitmap (formed by information of each pixel point), the vector diagram can be enlarged or reduced without loss, the file volume is smaller, and the editing is flexible. The traditional checking mode is a mode based on table lookup to a database, and is similar to a bitmap concept based on pixel point data.
The technical scheme is as follows:
a method for checking package parameters of an integrated component model analysis and extraction algorithm comprises the following steps:
in the business process of extracting the component packaging parameters, analyzing the company-level components according to the mode of a data object, and dividing the components into a shortcut component and a classic component according to the difference of the data importance level and the access form;
defining a component recognition algorithm and a component extraction algorithm based on industry experience of an electronic circuit technology and a hardware design method; the element identification algorithm is used for extracting an identification field of the shortcut element, and the identification field reflects the common information of different suppliers and different supplier product families to which the shortcut element belongs; the element extraction algorithm is used for mapping the identification field to the packaging parameter model library of the shortcut element;
wherein, for the shortcut component, a component recognition algorithm is adopted; for classical elements, a table lookup comparison is used.
In addition, the error checking codes of the shortcut component and the classic component are split.
The shortcut elements are elements with various types, easy model identification, easy model extraction and encapsulation and non-critical data access;
the various components are components with a component list accounting for more than sixty percent in the design field of a certain electronic circuit;
the component with the easily recognized model is a component with no more than 15 characters of the component identification field provided by a supplier in the field of electronic circuit design;
the packaged element is easily extracted from the model and is a component which is mapped one by one from the model identification field and the packaging parameter description in the specification of a supplier;
the non-critical data access element is an element which does not cause great errors in service to cause board return in the service process of extracting the component packaging parameters;
the classical elements are few in type, difficult to identify model, difficult to extract package from model, and key data access elements.
For digital circuits, the shortcut component is a resistance-capacitance component; for radio frequency analog circuits, the shortcut component is an amplifier.
Based on industry experience of electronic circuit technology and hardware design method, defining element recognition algorithm and element extraction algorithm, including:
firstly, acquiring a supplier list of the shortcut component, and analyzing a specification of each product family of each supplier;
obtaining the model description of the shortcut component for any product family of any supplier;
extracting a common part in the shortcut component model description as a selectable item of the identification field;
placing selectable items of the identification field into an identification algorithm pool;
for all other supplier product families, verifying whether the identification fields in the identification algorithm pool can be matched, and performing iteration or splitting to finally achieve the matching of the identification fields to the shortcut component complete set;
analyzing the packaging information field according to the identification field in the identification algorithm pool, constructing an extraction algorithm for extracting packaging information from the identification field, and associating the extraction algorithm with a packaging model in a packaging parameter library;
and putting the incidence relation into an extraction algorithm pool.
The optional item for extracting the common part in the shortcut component model description as the identification field comprises the following steps:
extracting the position of the packaging size in the shortcut component model description and the character string description;
extracting the position of the quantitative standard in the shortcut component model description and the character string description;
carrying out character string matching on other fields except for the packaging size and the measurement standard, and extracting character fields with commonality;
and the character field, the digital wildcard identifier occupying the packaging size and the measurement standard form an identifier field.
Splitting the checking error codes of the shortcut element and the classic element, comprising the following steps:
the shortcut component checks and reports the error code of the shortcut component, and indicates the user to identify the operation abnormality of the algorithm pool and the extraction algorithm pool;
and the classic element check reports the classic element error code and indicates that the user operates the data table abnormally.
The method further comprises the following steps:
inputting the model description of a component to be checked;
determining whether the component to be inspected belongs to a shortcut component or a classical component according to the model description;
if the component to be inspected is a shortcut component, obtaining a corresponding packaging parameter model by identifying the algorithm pool and extracting the algorithm pool;
and if the component to be inspected is a classical component, obtaining a corresponding packaging parameter model by a table look-up method.
Obtaining a corresponding packaging parameter model by identifying the algorithm pool and extracting the algorithm pool, wherein the method comprises the following steps:
sequentially matching the model description of the component to be inspected with each identification field in the identification algorithm pool until a proper identification field to be inspected is matched;
and inquiring the packaging parameter model corresponding to the identification field to be inspected according to the extraction algorithm pool.
Has the advantages that:
the invention relates to a component packaging parameter checking method, which combines a component identification algorithm and an algorithm for extracting packaging information in the checking process. The table look-up comparison and the algorithm comparison are integrated, so that the access period of the database is greatly reduced, the inspection efficiency and the data security are improved, and the time for large-scale electronic circuit design inspection operation is optimized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required in the embodiments will be briefly described below.
FIG. 1 is a schematic diagram of a sheet-type thin film fixed resistor specification with reliability index of Haizhou Hongdao RMK type;
FIG. 2 is a schematic diagram of a specification of a 718 RMK type chip thin film fixed resistor with reliability index;
FIG. 3 is a schematic diagram of a 718-plant RM type chip thin film fixed resistor specification;
fig. 4 is a flow chart of inspection, which is used to introduce a flow chart of main inspection processing, and assist in explaining the operation mode of table lookup comparison + algorithm comparison.
Detailed Description
The characteristics of the standard resistor-capacitor are in accordance with the shortcut component definition above.
This is because the standard rc component is the most used component of the circuit board, if the intrinsic attributes of the components are compared one by performing encapsulation by a database query method, a large number of access cycles will be wasted, and errors may occur in the data query process to cause data failure.
In the preparation stage of standard RC component packaging parameter checking service, firstly, a company standard RC component supplier list is obtained, a specification is analyzed to obtain an identification field of a certain type of RC component of a certain type of supplier, and the uniqueness of the identification field in the current type list is judged to obtain the identification field. For example, fig. 1 is a model rule description in a sheet type thin film fixed resistor specification with reliability index of RMK type in madrid continent, fig. 2 is a rule description in an RMK resistor specification of 718 factory, where "rmkxxxxxy" (xxxx is a 4-digit number, and y is a letter) can be extracted as an identification field, and the current model list is traversed to have uniqueness, and the identification field can be used as an option of an identification field of a universal resistor of a supplier and added to an identification algorithm pool. And then, iterating or splitting model descriptions of all other standard resistance-capacitance parts of the company, and finally matching the identification field with the complete set. As illustrated by the rule of the 718 plant RM type resistor specification in FIG. 3, an identification field of "RMxxxxxxy" (xxxx is a 4-digit number and y is a letter) may be extracted, which is added to the pool of recognition algorithms along with "RMKxxxxxxy" for use.
Secondly, model description of a certain type of capacitance-resistance part of a certain type of supplier of an effective recognition algorithm is carried out, packaging information in the model description is decomposed, an extraction algorithm for extracting the packaging information from the model is constructed and is associated with packaging parameters in library packaging, and an extraction algorithm pool is enriched step by step. For example, in the "RMKxxxxy" identification field of the components in fig. 1 and 2 and the "rmxxxxxxy" identification field in fig. 3, "xxxx" is consistent in specification and indicates the package metric size of the resistor of the model, "1608" should be associated with the "R0603[1608]" package model of the library package, so that a set of extraction algorithms is constructed.
And finally, packaging the standard resistance-capacitance element, the identification algorithm pool and the extraction algorithm pool thereof.
In the implementation phase of the examination, the flow is shown in fig. 4: firstly, preliminarily judging the legality of the component model, namely judging that an object is valid, for example, excluding an illegal component model name of '10 Kohm'; secondly, screening out a standard resistance-capacitance piece (shortcut element) and other elements (classical elements) by using a standard resistance-capacitance piece identification algorithm pool; thirdly, the standard capacitance-resistance part acquires the associated packaging parameters by adopting an extraction algorithm pool, and other elements inquire a ' model name ' -library packaging ' mapping table or access a material management database to acquire the packaging parameters; then, comparing the result package parameter with the package parameter in the drawing, if incorrect, reporting error codes respectively.
In addition, the error code of the standard RC is independent of the inspection result. The error codes of the standard RC algorithm are 7 to 9, which respectively point to three types of errors, namely 'discrete component model name error', 'discrete component packaging name error' and 'discrete component non-used library packaging', and are different from the error codes of the classical component look-up table error, namely 0 to 6. The design provides possibility for users to process resistor-capacitor errors in batch.
Claims (8)
1. A method for checking the packaging parameters of an integrated component model analysis and extraction algorithm is characterized by comprising the following steps:
in the business process of extracting the component packaging parameters, analyzing the company-level components according to the mode of a data object, and dividing the components into a shortcut component and a classic component according to the difference of the data importance level and the access form;
defining a component recognition algorithm and a component extraction algorithm based on industry experience of an electronic circuit technology and a hardware design method; the element identification algorithm is used for extracting an identification field of the shortcut element, and the identification field reflects the common information of different suppliers and different supplier product families to which the shortcut element belongs; the element extraction algorithm is used for mapping the identification field to the packaging parameter model library of the shortcut element;
wherein, for the shortcut component, a component identification algorithm is adopted; for classical elements, a table lookup comparison is used.
In addition, the error checking codes of the shortcut component and the classic component are split.
2. The method of claim 1, wherein the shortcut component is a component that is heterogeneous, easy to identify model, easy to extract package from model, non-critical data access;
the various components are components with a component list accounting for more than sixty percent in the design field of a certain electronic circuit;
the component with the easily recognized model is a component with no more than 15 characters of a component identification field provided by a supplier in the field of electronic circuit design;
easily extracting packaged elements from the model numbers to be components mapped one by one from model number identification fields and packaging parameter descriptions in specifications of suppliers;
the non-critical data access element is an element which can not cause the scrapping of a circuit board due to major errors in the service process of extracting the packaging parameters of the components;
the classical elements are few in type, difficult to identify model, difficult to extract package from model, and key data access elements.
3. The method of claim 1, wherein for digital circuits, the pass-through components are primarily resistive-capacitive components; for radio frequency analog circuits, the shortcut components are mainly amplifiers and resistance-capacitance components.
4. The method of claim 1, wherein defining a component recognition algorithm, a component extraction algorithm based on industry experience of electronic circuit technology, hardware design methods, comprises:
firstly, acquiring a supplier list of the shortcut component, and analyzing a specification of each product family of each supplier;
obtaining the model description of the shortcut component for any product family of any supplier;
extracting a common part in the shortcut component model description as a selectable item of the identification field;
placing selectable items of the identification field into an identification algorithm pool;
for all other supplier product families, verifying whether the identification fields in the identification algorithm pool can be matched, and performing iteration or splitting to finally achieve the matching of the identification fields to the shortcut component complete set;
analyzing the packaging information field according to the identification field in the identification algorithm pool, constructing an extraction algorithm for extracting packaging information from the identification field, and associating the extraction algorithm with a packaging model in a packaging parameter library;
and putting the association relationship into an extraction algorithm pool.
5. The method of claim 4, wherein extracting a common part of shortcut component model description as an option for an identification field comprises:
extracting the position of the packaging size in the shortcut component model description and the character string description;
extracting the position of the quantitative standard in the shortcut component model description and the character string description;
carrying out character string matching on other fields except for the packaging size and the measurement standard, and extracting character fields with commonality;
and the character field, the digital wildcard mark for occupying the space of the package size and the measurement standard form an identification field.
6. The method of claim 1, wherein splitting the checking error codes of the shortcut component and the classical component comprises:
the shortcut component checks and reports the error code of the shortcut component, and indicates the user to identify the operation abnormality of the algorithm pool and the extraction algorithm pool;
and the classic element check reports a classic element error code to indicate that the operation of the user on the data table is abnormal.
7. The method of claim 5, further comprising:
inputting the model description of a component to be checked;
judging whether the component to be inspected belongs to a shortcut component or a classical component according to the model description;
if the component to be inspected is a shortcut component, obtaining a corresponding packaging parameter model by identifying the algorithm pool and extracting the algorithm pool;
and if the component to be inspected is a classical component, obtaining a corresponding packaging parameter model by a table look-up method.
8. The method of claim 6, wherein obtaining the corresponding package parameter model by identifying a pool of algorithms and extracting a pool of algorithms comprises:
sequentially matching the model description of the component to be inspected with each identification field in the identification algorithm pool until a proper identification field to be inspected is matched;
and inquiring the packaging parameter model corresponding to the identification field to be inspected according to the extraction algorithm pool.
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| CN116137077A (en) * | 2023-04-13 | 2023-05-19 | 宁波为昕科技有限公司 | Method and device for establishing electronic component library, electronic equipment and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116137077A (en) * | 2023-04-13 | 2023-05-19 | 宁波为昕科技有限公司 | Method and device for establishing electronic component library, electronic equipment and storage medium |
| CN116137077B (en) * | 2023-04-13 | 2023-08-08 | 宁波为昕科技有限公司 | Method and device for establishing electronic component library, electronic equipment and storage medium |
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