CN103823882A - Method and system for automatically auditing PCB project files - Google Patents
Method and system for automatically auditing PCB project files Download PDFInfo
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Abstract
The invention relates to a method and a system for automatically auditing PCB project files. The method comprises the following steps of receiving a file packet submitted by a user, wherein the file packet comprises a Gerber file and/or a plate-making instruction file; on-line displaying the graph of the Gerber file, and using a preset parameter extraction rule to analyze the Gerber file and/or using a general engineering parameter description language rule base to analyze the plate-making instruction file, and acquiring a PCB project parameter; generating an SPEC file according to the PCB project parameter, integrating the analytical results, then outputting and displaying. The method for automatically auditing the PCB project files provided by the invention recognizes the PCB project parameter by comparing with the received Gerber file according to the preset rule, so that the system can automatically recognize the PCB project parameter and standardize the PCB project parameter and then output the PCB project parameter to the user, therefore the manual audit time of the Gerber file is shortened, the efficiency of PCB material collecting and auditing is improved, and the audit process and the audit result are more intuitive.
Description
Technical field
The present invention relates to printed-board technology field, specifically a kind of method and system of automatic audit PCB project file.
Background technology
At present, a PCB(PrintedCircuitBoard, printed circuit board (PCB)) project file is normally made up of multiple Gerber files and/or plate-making supporting paper, tradition needs engineering staff to understand to PCB project file auditing flow, the corresponding figure layer of each Gerber, need artificial judgment form, interlayer alignment, layer Pan Duan not, measurement size, set up Profile, judge total hole count, minimum-value aperture etc., because graphic element may exceed 1,000,000, need to check that analysis meter calculates a large amount of live width line-spacing fault situations through relating to for a long time rule, get rid of line simulator through engineering staff again, copper sheet, character requires a great deal of time.Be approximately 30 minutes the averaging time of a data of audit, and review efficiency is not high.
Summary of the invention
Fundamental purpose of the present invention is to provide a kind of method and system of automatic audit PCB project file, is intended to realize the automatic audit to PCB project file, to improve borrow efficiency.
In order to achieve the above object, the present invention proposes a kind of method of automatic audit PCB project file, and the method comprises:
Receive the file bag that user submits to, described file bag comprises Gerber file and/or plate-making supporting paper;
The online figure that shows Gerber file, utilizes preset parameter extraction rule parsing Gerber file and/or general engineering parameter descriptive language rule base to resolve plate-making supporting paper and gets PCB engineering parameter;
Generate SPEC file according to PCB engineering parameter, output display after integration analysis result.
Wherein, the figure of described online demonstration Gerber file, utilizes preset parameter extraction rule parsing Gerber file and/or general engineering parameter descriptive language rule base to resolve plate-making supporting paper and gets PCB engineering parameter, specifically comprises:
In the time that Gerber file employing standard is named, resolve described Gerber file acquisition to PCB layer not and the number of plies claiming by the layer another name that the default other naming rule of layer revised Gerber file, claim automatically Pai Xu not by layer according to layer another name;
In the time that not employing standard of Gerber file is named, reading after described Gerber file, utilize graphics technology to recognize PCB circuit and layer and claim by the layer another name that the default other naming rule of layer revised Gerber file, claiming automatically by layer Pai Xu not according to layer another name.
Wherein, the figure of described online demonstration Gerber file, utilizes preset parameter extraction rule parsing Gerber file and/or general engineering parameter descriptive language rule base to resolve plate-making supporting paper and gets PCB engineering parameter, specifically comprises:
Resolve described Gerber file acquisition top line regional extent, obtain primary drilling form and position distribution region according to described parameter extraction rule with reference to described top line regional extent, and with the contraposition of top layer pad center point;
Determine after boring according to contraposition success ratio, get bore position, minimum hole count and minimum-value aperture, connect attribute according to the blind buried via hole of default boring naming rule definition boring file, and align with outer-layer circuit by drill center;
Show the use information of aperture table, and use element corresponding to the current aperture of checking of highlighted demonstration;
According to the selection element of the figure of Gerber file, build the profile of PCB, and calculate continuous maximum outline, form Profile;
Calculate test point, the gong journey of PCB and need surface-treatedization gold area, generate the form of the tool-information of boring.
Wherein, the figure of described online demonstration Gerber file, utilizes preset parameter extraction rule parsing Gerber file and/or general engineering parameter descriptive language rule base to resolve plate-making supporting paper and gets PCB engineering parameter, specifically comprises:
Resolve described Gerber file acquisition PCB negative film element, delete described PCB negative film element;
Choosing a pel is start element, will differ the scope of searching for spacing into default minimum as search unit with figure elemental area, the network that search is connected with start element, and the pel of the non-consolidated network detecting, non-dimension line is defined as to fault situation;
To after ascending the pel that belong to fault situation sequence, screen, to get minimum line distance.
Wherein, the figure of described online demonstration Gerber file, utilizes preset parameter extraction rule parsing Gerber file and/or general engineering parameter descriptive language rule base to resolve plate-making supporting paper and gets PCB engineering parameter, specifically comprises:
Travel through described file bag, the plate-making supporting paper that wherein comprised is resolved to the text of consolidation form;
Utilize the text that preset general engineering parameter descriptive language rule base mates described consolidation form to extract engineering parameter description document, and collect the control information comprising in plate-making supporting paper.
Wherein, the file bag that described reception user submits to, described file bag also comprises before comprising Gerber file and/or plate-making supporting paper:
Preset described parameter extraction rule and/or general engineering parameter descriptive language rule base;
Described according to PCB engineering parameter generation SPEC file, after integration analysis result, after output display, also comprise:
Gerber file is exported as to RS274X formatted file and/or ODB++ formatted file.。
The present invention also proposes a kind of system of automatic audit PCB project file, and this system comprises:
Receiver module, the file bag of submitting to for receiving user, described file bag comprises Gerber file and/or plate-making supporting paper;
Engineering parameter acquisition module, for the online figure that shows Gerber file, utilizes preset parameter extraction rule parsing Gerber file and/or general engineering parameter descriptive language rule base to resolve plate-making supporting paper and gets PCB engineering parameter;
Output module, for generating SPEC file according to PCB engineering parameter, output display after integration analysis result.
Wherein, described engineering parameter acquisition module specifically comprises:
Name recognition unit, for when the name of described Gerber file employing standard, resolves and gets PCB layer not and the number of plies claiming by the layer another name that the default other naming rule of layer revised Gerber file, claims automatically by layer Pai Xu not according to layer another name;
Figure recognition unit, for in the time that not employing standard of described Gerber file is named, reading after Gerber file, utilize graphics technology to recognize PCB circuit and layer and claim by the layer another name that the default other naming rule of layer revised Gerber file, claiming automatically by layer Pai Xu not according to layer another name.
Wherein, described engineering parameter acquisition module specifically comprises:
The first resolution unit, for resolving described Gerber file acquisition to top line regional extent, obtains primary drilling form and position distribution region according to described parameter extraction rule with reference to described top line regional extent, and with the contraposition of top layer pad center point;
Drilling parameter acquiring unit, for determining after boring according to contraposition success ratio, get bore position, minimum hole count and minimum-value aperture, connect attribute according to the blind buried via hole of default boring naming rule definition boring file, and align with outer-layer circuit by drill center;
Aperture display unit, for showing the use information of aperture table, and use element corresponding to the current aperture of checking of highlighted demonstration;
Profile determining unit, for according to the selection element of the figure of Gerber file, builds the profile of PCB, and calculates continuous maximum outline, forms Profile;
Computing unit, for calculating test point, the gong journey of PCB and needing surface-treatedization gold area, generates the form of the tool-information of boring.
Wherein, described engineering parameter acquisition module specifically comprises:
Negative film element delete cells, for resolving described Gerber file acquisition PCB negative film element, deletes described PCB negative film element;
Screening unit, being used for choosing a pel is start element, to differ the scope of searching for spacing into default minimum as search unit with figure elemental area, the network that search is connected with start element, and the pel of the non-consolidated network detecting, non-dimension line is defined as to fault situation;
Minimum line is apart from acquiring unit, for screening after ascending the pel that belong to fault situation sequence, to get minimum line distance.
Wherein, described engineering parameter acquisition module also comprises:
Traversal unit, for traveling through described file bag, resolves to the plate-making supporting paper that wherein comprised the text of consolidation form;
Matching unit, utilizes the text that preset general engineering parameter descriptive language rule base mates described consolidation form to extract engineering parameter description document, and collects the control information comprising in plate-making supporting paper.
Wherein, described system also comprises preset module, specifically for:
Preset described parameter extraction rule and/or general engineering parameter descriptive language rule base;
Derive module, for Gerber file being exported as to RS274X formatted file and/or ODB++ formatted file.
The present invention is shown online, resolves, processes the file receiving by rule base and identifies PCB engineering parameter, make system automatically the standardization of PCB engineering parameter to be generated to Spec file and to export user to, shorten the time of manual examination and verification, the efficiency that improves PCB project examination, review process and auditing result are more directly perceived.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of automatic audit PCB project file method provided by the invention one embodiment;
Fig. 2 is startup file auditing module in automatic audit PCB project file method provided by the invention one embodiment, utilizes presetting rule to resolve the schematic flow sheet of described Gerber file acquisition to PCB engineering parameter step;
Fig. 3 is startup file auditing module in the another embodiment of automatic audit PCB project file method provided by the invention, utilizes presetting rule to resolve the schematic flow sheet of described Gerber file acquisition to PCB engineering parameter step;
Fig. 4 is startup file auditing module in the another embodiment of automatic audit PCB project file method provided by the invention, utilizes presetting rule to resolve the schematic flow sheet of described Gerber file acquisition to PCB engineering parameter step;
Fig. 5 is startup file auditing module in the another embodiment of automatic audit PCB project file method provided by the invention, utilizes presetting rule to resolve the schematic flow sheet of described Gerber file acquisition to PCB engineering parameter step;
Fig. 6 is the schematic flow sheet in the another embodiment of automatic audit PCB project file method provided by the invention;
Fig. 7 is the structural representation in automatic audit PCB project file system provided by the invention one embodiment;
Fig. 8 is the structural representation of engineering parameter acquisition module in automatic audit PCB project file system provided by the invention one embodiment;
Fig. 9 is the structural representation of engineering parameter acquisition module in the another embodiment of automatic audit PCB project file system provided by the invention;
Figure 10 is the structural representation of engineering parameter acquisition module in the another embodiment of automatic audit PCB project file system provided by the invention;
Figure 11 is the structural representation in the another embodiment of automatic audit PCB project file system provided by the invention;
Figure 12 is the structural representation in the another embodiment of automatic audit PCB project file system provided by the invention.
Realization, functional characteristics and the advantage of the object of the invention, in connection with embodiment, are described further with reference to accompanying drawing.
Embodiment
Further illustrate technical scheme of the present invention below in conjunction with accompanying drawing and by embodiment.
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The present invention relates to a kind of method and system of automatic audit PCB project file, wherein, PCB project file includes Gerber file (gerber files), plate-making supporting paper etc.In the audit that Gerber file is carried out, resolve according to protocol rule, utilize geometric figure to learn a skill and calculate Gerber engineering parameter (number of plies, minimum feature, minimum line distance, size, hole count, minimum-value aperture etc.) with engineering experience rule, the audit of plate-making supporting paper utilizes the engineering information (thickness of slab, surface treatment, copper are thick etc.) of presetting rule storehouse identification text description, finally integrates output project examination list.
The present invention relates generally to the automatic audit to PCB project file, after utilizing preset rule to check fast file, automatically generates PCB project examination list etc., has greatly shortened the time of manually checking, and has improved material efficiency.
Please refer to Fig. 1, is the schematic flow sheet of the method for the automatic audit PCB project file that proposes in one embodiment of the invention, and as shown in Figure 1, the method comprises:
Step 110: receive the file bag that user submits to, described file bag comprises Gerber file and/or plate-making supporting paper;
Server such as, receives by modes such as internet (Email), client or LAN (Local Area Network) the file bag that user submits to, in the present embodiment, in this file bag, include Gerber file, in other embodiment, in this file bag, also comprise plate-making supporting paper.Wherein, Gerber file refers to the gerber files in PCB manufacturing industry, can derive by design software for example Protel, AutoCAD, PowerPCB, PADS, MENTOR, ALLEGRO, the design softwares such as ZUKEN.In Gerber file, comprise the parameter such as coordinate, shape description of pel.The Gerber file of standard can be divided into two kinds of RS-274 and RS-274X, conventional numeric data code comprises ASCII(AmericanStandardCodeforInformationInterchange, ASCII(American Standard Code for information interchange)), EBCDIC (ExtendedBinaryCodedDecimalInterchangeCode is the character code table of International Business Machines Corporation (IBM) release) etc.And plate-making supporting paper is supplementing that PCB is designed, wherein include the explanation to PCB engineering parameter, for example the description of PCB engineering parameter, control.The plate-making supporting paper form that different user provides and content difference, for example, can be Word form, Excel form, TXT form or picture file etc., in some plate-making supporting papers, also comprises control or layout information.
Step 120: show online the figure of Gerber file, utilize preset parameter extraction rule parsing Gerber file and/or general engineering parameter descriptive language rule base to resolve plate-making supporting paper and get PCB engineering parameter;
Wherein, parameter extraction rule presets according to the engineering design rule trend of PCB file, can get the corresponding engineering parameter of PCB file after making system utilize this parameter extraction rule to recognize a certain feature of PCB file.Parameter extraction rule comprises pel definition rule, format convention, dedicated rules, formula rule, special algorithm routine package, empirical rule and integration rules; General engineering parameter descriptive language rule can comprise: industry rule base, industry SPEC item title key word, industry SPEC item codomain key word etc., PCB industry rule base obtains according to SPEC item codomain key word and conjunction key word.After receiving file bag, system is utilized preset parameter extraction rule parsing Gerber file and/or general engineering parameter descriptive language rule base to resolve plate-making supporting paper and is got PCB engineering parameter.
More specifically, PCB engineering parameter at least comprise the size of the size of minimum feature and source, minimum line distance and source, PCB form, layer not, circuit, hole structure, minimum-value aperture, total hole count and size etc.In the present embodiment, in the time including Gerber file in the file that user submits to, system can utilize parameter extraction rule parsing Gerber file to obtain after PCB engineering parameter, from each layer extract surround outer-layer circuit and with the housing that approaches outer-layer circuit loop size as PCB size, (for example in Gerber file, comprise engineering parameter description document, picture, Word, Excel etc.) time, also can utilize the engineering parameter description document (for example, picture) comprising in general engineering parameter descriptive language coupling Gerber file to obtain engineering parameter.In other embodiments, in the file bag that user submits to, include Gerber file or plate-making supporting paper, system utilizes parameter extraction rule parsing Gerber file and/or general engineering parameter descriptive language to resolve plate-making supporting paper according to the file type in file bag, gets PCB engineering parameter.The size of the size of described minimum feature and minimum line distance is measured by the center of element in Gerber file, outer edge, end points or track center, and concrete measurement standard is selected according to actual needs.And online visually make to check that Gerber figure is very convenient, can easily realize roller convergent-divergent, pull movement.
Step 130: generate SPEC file according to PCB engineering parameter, output display after integration analysis result;
Get after PCB engineering parameter at resolution file bag, the SPEC(project examination that analysis result is integrated into standard only according to), standardized structural drawing (for example, in this standardized structural drawing, can comprise a layer structure, hole structure and other conventional structural drawing) after, output display.
Please refer to Fig. 2, more specifically, in the method for automatic audit PCB project file in another embodiment, get the idiographic flow schematic diagram of PCB engineering parameter, in the present embodiment, and in step 120, take following steps to obtain engineering parameter:
Step 121: when Gerber file is standard when name, resolve this Gerber file acquisition to PCB layer not and the number of plies claiming by the layer another name that the default other naming rule of layer revised Gerber file, claim automatically by layer Pai Xu not according to layer another name.
If the Gerber file reading has adopted standard name, system is recognizing after Gerber file according to Gerber filename so, can identify PCB layer not and the number of plies with reference to naming rule, and for the name under various criterion, unify name according to default naming rule, concrete mode is included in layer another name title other with suffix definition layer, as _ top.
Step 122: in the time that not employing standard of described Gerber file is named, reading after Gerber file, utilize graphics technology to recognize PCB circuit and layer and claim by the layer another name that the default other naming rule of layer revised Gerber file, claiming automatically by layer Pai Xu not according to layer another name.
For the Gerber file that does not adopt the name of standard naming rule, cannot directly get PCB layer not and the number of plies.Now, the primitive information that system reads from the Gerber file reading, for example, PCB wire characteristic, copper sheet shape, heat radiation aperture, dividing potential drop diagram shape etc., because other function difference of the every one deck of PCB can comprise different pels, utilize graphics technology not recognize the PCB number of plies and layer not, on the basis of recognition result, unify to name according to default naming rule equally, concrete mode is included in layer another name title other with suffix definition layer, as _ top.
In another embodiment, system is resolved PCB engineering parameters such as getting PCB boring form, position, hole count and aperture from Gerber file, please refer to Fig. 3, in method for automatic audit PCB project file in another embodiment, get the concrete schematic flow sheet of PCB engineering parameter, as shown in Figure 3, step 120 specifically comprises:
Step 123: resolve Gerber file acquisition top line regional extent, obtain primary drilling form and position distribution region according to parameter extraction rule with reference to described top line regional extent, and with the contraposition of top layer pad center point.
Wherein, parameter extraction rule is according to area corresponding to the borehole coordinate form rule setting of arranging, after system analysis Gerber file, get the data such as top line region, according to presetting rule with reference to top line region, get primary drilling form and position distribution region, further, by tentatively definite boring form and position and the contraposition of top layer pad center of gravity, conventionally contraposition is carried out in the extreme value boring in chosen position distributed areas, as upper left, left, lower-left, upper right, right, bottom right, upper, the boring of lower middle position, and the contraposition success ratio of adding up each extreme value boring.
Step 124: determine after boring according to contraposition success ratio, get bore position, minimum hole count and minimum-value aperture, connect attribute according to the blind buried via hole of default boring naming rule definition boring file, and align with outer-layer circuit by drill center.
Extreme value boring high contraposition success ratio is defined as to boring, and then get the PCB engineering parameters such as bore position, minimum hole count and minimum-value aperture, for example called after drl1-3 is defined as to the boring that runs through 1-3 layer, the like, drl2-4 is defined as the boring that runs through 1-4.
Step 125: show the use information of aperture table, and use element corresponding to the current aperture of checking of highlighted demonstration.
It is more clear that the current use element of checking that aperture is corresponding of highlighted demonstration can make to check, it is more accurate to locate.
Step 126: according to the selection element of the figure of Gerber file, build the profile of PCB, and calculate continuous maximum outline, form Profile.
Maximum outline is the polygon of a sealing, by can determine the size of required PCB to this polygonal calculating.
Step 127: calculate test point, the gong journey of PCB and need surface-treatedization gold area, generate the form of the tool-information of boring.
The data that obtain in this step are important parameters required in PCB production test procedure, and can further press guest Parametric designing Set on this basis, so that registering shipment.
Please refer to Fig. 4, for automatically resolving the schematic flow sheet of Gerber file acquisition to PCB engineering parameter in the method for audit PCB project file in another embodiment, as shown in Figure 4, the concrete steps in step 120 comprise:
Step 128: resolve Gerber file acquisition PCB negative film element, delete PCB negative film element;
Resolve Gerber file acquisition after PCB circuit, utilize polygon difference operation to merge and obtain PCB negative film element, negative film element is deleted.
Step 129: choosing a pel is start element, to differ the scope of searching for spacing into default minimum as search unit with figure elemental area, the network that search is connected with start element is defined as hunting zone, and the pel of the non-consolidated network detecting, non-dimension line is defined as to fault situation;
In the present embodiment, it is example take start element as pad, by with bonding pad area differ into default minimum search spacing (for example, can be for 10mil) scope be defined as hunting zone, by the pel of non-present networks, non-dimension line in hunting zone, whether distance is less than 10mil, if so, be defined as fault situation.
By ascending the pel that belongs to fault situation sequence, the line that recognizes exposure is selected plug, thereby gets real minimum line distance to get rid of line simulator and copper sheet.
Please refer to Fig. 5, Fig. 5 is the schematic flow sheet of automatically resolving plate-making supporting paper in another embodiment in the method for audit PCB project file, and step 120 specifically comprises:
Due to description rule, the space of a whole page difference of each PCB design proposal, can there is the plate-making supporting paper of different-format, system need to get PCB engineering parameter information from the plate-making supporting paper of different-format.When system travels through when also comprising independent plate-making supporting paper in the file bag receiving or being embedded in the plate-making supporting paper in Gerber file, collect the PCB engineering parameter information comprising in plate-making supporting paper.In the present embodiment, first the plate-making supporting paper of different-format is converted into the text of consolidation form, thereby directly the text of this consolidation form is processed in follow-up step, in the time that this plate-making supporting paper is PDF or picture, utilize OC(ROpticalCharacterRecognition, optical character recognition) technology is first converted to Word by it, and is further converted into text formatting by Word analytics engine; In the time that this plate-making supporting paper is Word, be converted into text formatting by Word analytics engine; In the time that this plate-making supporting paper is Excel form, be converted into text formatting etc. by Excel analytics engine.
Wherein, according to actual conditions, this general engineering parameter descriptive language rule base specifically can include but not limited to industry rule base (wherein can comprise SPEC project codomain key word and connect keyword), industry SPEC item title key word, industry SPEC item codomain key word etc.This rule base can be pre-stored within the storer in system with specific data layout.When after system initialization, from storer, call the text that mates the consolidation form getting in step S280 after this general engineering parameter descriptive language rule base, for example, can first utilize industry rule base to carry out full text coupling to text file, to extract key word, if there is synonym in text, can first be translated into industry standard word, further utilize key word that industry SPEC item title keyword match collects to get after SPEC project codomain, the choice that judges SPEC project codomain gets related data, and the related data such as outputting standard SPEC project codomain.In addition, system also judges in the control of plate-making supporting paper, to extract correlation engineering parametric description data.In plate-making supporting paper being examined by above step, also support traditional source document audit so that audit is supplemented.
Get control information and engineering parameter description document project examination list, the structural drawing etc. of output display standard after the correlation parameter integration that the control information that coupling plate-making supporting paper is got and engineering parameter description document and parsing Gerber file acquisition arrive from the supporting paper of making a plate.
Please refer to Fig. 6, on the basis of previous embodiment, in another embodiment, before connecing step 110, also comprise:
Step 100: preset parameter extracting rule and/or general engineering parameter descriptive language rule base;
In the present embodiment, system can be accepted user's input preset parameter extracting rule and/or general engineering parameter descriptive language rule base, and Gerber document analysis rule comprises pel definition rule, format convention, dedicated rules, formula rule, special algorithm routine package, empirical rule and integration rules; General engineering parameter descriptive language rule can comprise: industry rule base, industry SPEC item title key word, industry SPEC item codomain key word etc.PCB industry rule base obtains according to SPEC item codomain key word and conjunction key word.By preset step, make system undated parameter extracting rule and general engineering parameter descriptive language rule base in time, make the result of audit more accurate.After system starts, each rule base has been carried out initialization, receive file bag and get engineering parameter to examine.
After step 130, also comprise:
Step 140: Gerber file is exported as to RS274X formatted file and/or ODB++ formatted file.
The range of application that Gerber file is exported as to RS274X formatted file and/or ODB++ formatted file and can further expand this programme, provides abundanter service according to user's needs.
The method of automatic audit PCB project file provided by the invention, by rule base, the file receiving shown online, resolves, processed and identify PCB engineering parameter, make system automatically the standardization of PCB engineering parameter to be generated to Spec file and to export user to, shorten the time of manual examination and verification, the efficiency that improves PCB project examination, review process and auditing result are more directly perceived.
Please refer to Fig. 7, the structural representation of system 70 of the automatic audit PCB project file proposing for the present invention, as shown in Figure 7, this system comprises:
Engineering parameter acquisition module 720, for the online figure that shows Gerber file, utilizes preset parameter extraction rule parsing Gerber file and/or general engineering parameter descriptive language rule base to resolve plate-making supporting paper and gets PCB engineering parameter;
Wherein, parameter extraction rule presets according to the engineering design rule trend of PCB file, makes engineering parameter module 720 utilize this parameter extraction rule can get the corresponding engineering parameter of PCB file recognizing after a certain feature of PCB file.Parameter extraction rule can comprise Gerber document analysis rule and/or general engineering parameter descriptive language storehouse, and Gerber document analysis rule comprises pel definition rule, format convention, dedicated rules, formula rule, special algorithm routine package, empirical rule and integration rules; General engineering parameter descriptive language rule can comprise: industry rule base, industry SPEC item title key word, industry SPEC item codomain key word etc.PCB industry rule base obtains according to SPEC item codomain key word and conjunction key word.After receiving file bag, engineering parameter acquisition module 20 utilizes preset parameter extraction rule to identify this file bag, to obtain PCB engineering parameter.
More specifically, PCB engineering parameter at least comprise the size of the size of minimum feature and source, minimum line distance and source, PCB form, layer not, circuit, hole structure, minimum-value aperture, total hole count and size etc.In the present embodiment, in the time including Gerber file in the file that user submits to, engineering parameter acquisition module 720 can utilize parameter extraction rule parsing Gerber file to obtain after PCB engineering parameter, from each layer extract surround outer-layer circuit and with the housing that approaches outer-layer circuit loop size as PCB size, (for example in Gerber file, comprise engineering parameter description document, picture, Word, Excel etc.) time, engineering parameter acquisition module 720 also can utilize general engineering parameter descriptive language coupling Gerber file to obtain engineering parameter.In other embodiments, in the file bag that user submits to, include Gerber file or plate-making supporting paper, engineering parameter acquisition module 720 utilizes parameter extraction rule parsing Gerber file and/or general engineering parameter descriptive language to resolve plate-making supporting paper according to the file type in file bag, gets PCB engineering parameter.
Get after PCB engineering parameter at resolution file bag, output module 730 by analysis result integrate be the project examination list SPEC document of standard, standardized structural drawing (for example, in this standardized structural drawing, can comprise a layer structure, hole structure and other conventional structural drawing) after, output display.
Please refer to Fig. 8, for the structural representation of engineering parameter acquisition module 720 in the system 70 of automatic audit PCB project file in another embodiment, on the basis of previous embodiment, more specifically, engineering parameter acquisition module 720 specifically comprises name recognition unit 721 and figure recognition unit 722, wherein:
Name recognition unit 721, for being standard when name when Gerber file, resolves this Gerber file acquisition to PCB layer not and the number of plies claiming by the layer another name that the default other naming rule of layer revised Gerber file, claims automatically to press layer Pai Xu not according to layer another name;
If the Gerber file reading has adopted standard name, name so recognition unit 721 recognizing after Gerber file according to Gerber filename, can identify PCB layer not and the number of plies with reference to naming rule.And for the Gerber file that does not adopt the name of standard naming rule, cannot directly get PCB layer not and the number of plies.Now, figure recognition unit 722 reads primitive information from Gerber file, for example, PCB wire characteristic, copper sheet shape, heat radiation aperture, dividing potential drop diagram shape etc., because other function difference of the every one deck of PCB can comprise different pels, figure recognition unit 722 utilizes pattern recognition technique not recognize the PCB number of plies and layer not.
Further, in another embodiment, engineering parameter acquisition module 720 can also get the PCB engineering parameters such as PCB boring form, position, hole count and aperture from Gerber file, please refer to Fig. 9, for the structural representation of engineering parameter acquisition module 720 in another embodiment, as shown in Figure 9, this module specifically comprises:
The first resolution unit 723, for resolving described Gerber file acquisition to top line regional extent, obtains primary drilling form and position distribution region according to parameter extraction rule with reference to top line regional extent, and with the contraposition of top layer pad center point;
Drilling parameter acquiring unit 724, for determining after boring according to contraposition success ratio, get bore position, minimum hole count and minimum-value aperture, connect attribute according to the blind buried via hole of default boring naming rule definition boring file, and align with outer-layer circuit by drill center.
Aperture display unit 725, for showing the use information of aperture table, and use element corresponding to the current aperture of checking of highlighted demonstration;
Profile determining unit 726, for according to the selection element of the figure of Gerber file, builds the profile of PCB, and calculates continuous maximum outline, forms Profile;
Computing unit 727, for calculating test point, the gong journey of PCB and needing surface-treatedization gold area, generates the form of the tool-information of boring.
Wherein, parameter extraction rule is according to area corresponding to the borehole coordinate form rule setting of arranging, the first resolution unit 723 gets the data such as top line region after resolving Gerber file, according to presetting rule with reference to top line region, get primary drilling form and position distribution region, further, by tentatively definite boring form and position and the contraposition of top layer pad center of gravity, conventionally contraposition is carried out in the extreme value boring in chosen position distributed areas, as upper left, left, lower-left, upper right, right, bottom right, upper, the boring of lower middle position, and the contraposition success ratio of adding up each extreme value boring.
The first resolution unit 723 counts after contraposition success ratio, and extreme value boring high contraposition success ratio is defined as boring by drilling parameter acquiring unit 724, and then get the PCB engineering parameter data such as bore position, minimum hole count and minimum-value aperture.
More specifically, in another embodiment, engineering parameter acquisition module 720 can also get minimum line distance and minimum feature from Gerber file, and with reference to Figure 10, engineering parameter module 720 specifically comprises:
Negative film element delete cells 728, for resolving Gerber file acquisition PCB negative film element, deletes the PCB negative film element detecting;
Line-spacing acquiring unit 72A, for screening after ascending fault situation sequence, to get minimum line distance.
Negative film element delete cells 728 is resolved after Gerber file acquisition PCB circuit, utilizes polygon difference operation to merge and obtains PCB negative film element, further the negative film element detecting is deleted.While screening unit 729 take start element as pad, it is example, by with bonding pad area differ into default minimum search spacing (for example, can be for 10mil) scope be defined as hunting zone, by the pel of non-present networks, non-dimension line in hunting zone, whether distance is less than 10mil, if so, be defined as fault situation.Line-spacing acquiring unit 72A is by ascending fault situation sequence, and the line that recognizes exposure is selected plug, thereby gets real minimum line distance to get rid of line simulator and copper sheet.
Please refer to Figure 11, is the structural representation of engineering parameter acquisition module in another embodiment, and as shown in figure 11, in the present embodiment, in the time that receiver module receives the file bag that comprises Gerber file and plate-making supporting paper, engineering parameter acquisition module also comprises:
Matching unit 72C, extracts engineering parameter description document for the text that utilizes preset general engineering parameter descriptive language rule base coupling consolidation form, and the control information comprising in mobile phone plate-making supporting paper;
Due to description rule, the space of a whole page difference of each PCB design proposal, can there is the plate-making supporting paper of different-format, system need to get PCB engineering parameter information from the plate-making supporting paper of different-format.In the present embodiment, in the time that text resolution unit 72B travels through the file bag receiving and also comprises independent plate-making supporting paper or be embedded in the plate-making supporting paper in Gerber file, collect the PCB engineering parameter information comprising in plate-making supporting paper.Text resolution unit 72B is first converted into the plate-making supporting paper of different-format the text of consolidation form, thereby directly the text of this consolidation form is processed in follow-up step, in the time that this plate-making supporting paper is PDF or picture, text resolution unit 72B utilizes OCR(OpticalCharacterRecognition, optical character recognition) technology is first converted to Word by it, and is further converted into text formatting by Word analytics engine; In the time that this plate-making supporting paper is Word, text resolution unit 72B is converted into text formatting by Word analytics engine; In the time that this plate-making supporting paper is Excel form, text resolution unit 72B is converted into text formatting etc. by Excel analytics engine.
Wherein, according to actual conditions, this general engineering parameter descriptive language rule base specifically can include but not limited to industry rule base (wherein can comprise SPEC project codomain key word and connect keyword), industry SPEC item title key word, industry SPEC item codomain key word etc.This rule base can be pre-stored within the storer in system with specific data layout.When after system initialization, matching unit 72C calls the text of the consolidation form that coupling gets after this general engineering parameter descriptive language rule base from storer, for example, first matching unit 72C can utilize industry rule base to carry out full text coupling to text file, to extract key word, if there is synonym in text, can first be translated into industry standard word, further utilize key word that industry SPEC item title keyword match collects to get after SPEC project codomain, the choice that judges SPEC project codomain gets related data, and the related data such as outputting standard SPEC project codomain.In addition, system also judges in the control of plate-making supporting paper, to extract correlation engineering parametric description data.In plate-making supporting paper being examined by above step, also support traditional source document audit so that audit is supplemented.
Get control information and engineering parameter description document project examination list, the structural drawing etc. of output display standard after the correlation parameter integration that the control information that output module 30 gets coupling plate-making supporting paper and engineering parameter description document and parsing Gerber file acquisition arrive from the supporting paper of making a plate.
Please refer to Figure 12, the structural representation of the system 70 of the automatic audit PCB project file proposing for another embodiment, as shown in figure 12, on the basis of previous embodiment, this system also comprises:
Preset module 700, for preset parameter extracting rule and/or general engineering parameter descriptive language rule base.
Derive module 740, for Gerber file being exported as to RS274X formatted file and/or ODB++ formatted file.
In the present embodiment, preset module 700 can be accepted user's input preset parameter extracting rule and/or general engineering parameter descriptive language rule base, and Gerber document analysis rule comprises pel definition rule, format convention, dedicated rules, formula rule, special algorithm routine package, empirical rule and integration rules; General engineering parameter descriptive language rule can comprise: industry rule base, industry SPEC item title key word, industry SPEC item codomain key word etc.PCB industry rule base obtains according to SPEC item codomain key word and conjunction key word.By preset step, make system undated parameter extracting rule and general engineering parameter descriptive language rule base in time, make the result of audit more accurate.After system starts, each rule base has been carried out initialization, receive file bag and get engineering parameter to examine.
The system of automatic audit PCB project file provided by the invention, by rule base, the file receiving is resolved, is processed and identifies PCB engineering parameter, make system automatically will after the standardization of PCB engineering parameter, export user to, shorten the time of manual examination and verification, improved the efficiency of PCB project examination.
The above; be only preferably embodiment of the present invention, but protection scope of the present invention is not limited to this, any people who is familiar with this technology is in the disclosed technical scope of the present invention; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (10)
1. a method of automatically examining PCB project file, is characterized in that, comprising:
Receive the file bag that user submits to, described file bag comprises Gerber file and/or plate-making supporting paper;
The online figure that shows Gerber file, utilizes preset parameter extraction rule parsing Gerber file and/or general engineering parameter descriptive language rule base to resolve plate-making supporting paper and gets PCB engineering parameter;
Generate SPEC file according to PCB engineering parameter, output display after integration analysis result.
2. method according to claim 1, it is characterized in that, the figure of described online demonstration Gerber file, utilizes preset parameter extraction rule parsing Gerber file and/or general engineering parameter descriptive language rule base to resolve plate-making supporting paper and gets PCB engineering parameter, specifically comprises:
In the time that Gerber file employing standard is named, resolve described Gerber file acquisition to PCB layer not and the number of plies claiming by the layer another name that the default other naming rule of layer revised Gerber file, claim automatically Pai Xu not by layer according to layer another name;
In the time that not employing standard of Gerber file is named, reading after described Gerber file, utilize graphics technology to recognize PCB circuit and layer and claim by the layer another name that the default other naming rule of layer revised Gerber file, claiming automatically by layer Pai Xu not according to layer another name.
3. method according to claim 1, it is characterized in that, the figure of described online demonstration Gerber file, utilizes preset parameter extraction rule parsing Gerber file and/or general engineering parameter descriptive language rule base to resolve plate-making supporting paper and gets PCB engineering parameter, specifically comprises:
Resolve described Gerber file acquisition top line regional extent, obtain primary drilling form and position distribution region according to described parameter extraction rule with reference to described top line regional extent, and with the contraposition of top layer pad center point;
Determine after boring according to contraposition success ratio, get bore position, minimum hole count and minimum-value aperture, connect attribute according to the blind buried via hole of default boring naming rule definition boring file, and align with outer-layer circuit by drill center;
Show the use information of aperture table, and use element corresponding to the current aperture of checking of highlighted demonstration;
According to the selection element of the figure of Gerber file, build the profile of PCB, and calculate continuous maximum outline, form Profile;
Calculate test point, the gong journey of PCB and need surface-treatedization gold area, generate the form of the tool-information of boring.
4. method according to claim 1, it is characterized in that, the figure of described online demonstration Gerber file, utilizes preset parameter extraction rule parsing Gerber file and/or general engineering parameter descriptive language rule base to resolve plate-making supporting paper and gets PCB engineering parameter, specifically comprises:
Resolve described Gerber file acquisition PCB negative film element, delete described PCB negative film element;
Choosing a pel is start element, will differ the scope of searching for spacing into default minimum as search unit with figure elemental area, the network that search is connected with start element, and the pel of the non-consolidated network detecting, non-dimension line is defined as to fault situation;
To after ascending the pel that belong to fault situation sequence, screen, to get minimum line distance.
5. method according to claim 1, it is characterized in that, the figure of described online demonstration Gerber file, utilizes preset parameter extraction rule parsing Gerber file and/or general engineering parameter descriptive language rule base to resolve plate-making supporting paper and gets PCB engineering parameter, specifically comprises:
Travel through described file bag, the plate-making supporting paper that wherein comprised is resolved to the text of consolidation form;
Utilize the text that preset general engineering parameter descriptive language rule base mates described consolidation form to extract engineering parameter description document, and collect the control information comprising in plate-making supporting paper;
The file bag that described reception user submits to, described file bag also comprises before comprising Gerber file and/or plate-making supporting paper:
Preset described parameter extraction rule and/or general engineering parameter descriptive language rule base;
Described according to PCB engineering parameter generation SPEC file, after integration analysis result, after output display, also comprise:
Gerber file is exported as to RS274X formatted file and/or ODB++ formatted file.
6. a system of automatically examining PCB project file, is characterized in that, this system comprises:
Receiver module, the file bag of submitting to for receiving user, described file bag comprises Gerber file and/or plate-making supporting paper;
Engineering parameter acquisition module, for the online figure that shows Gerber file, utilizes preset parameter extraction rule parsing Gerber file and/or general engineering parameter descriptive language rule base to resolve plate-making supporting paper and gets PCB engineering parameter;
Output module, for generating SPEC file according to PCB engineering parameter, output display after integration analysis result.
7. system according to claim 6, is characterized in that, described engineering parameter acquisition module specifically comprises:
Name recognition unit, for when the name of described Gerber file employing standard, resolves and gets PCB layer not and the number of plies claiming by the layer another name that the default other naming rule of layer revised Gerber file, claims automatically by layer Pai Xu not according to layer another name;
Figure recognition unit, for in the time that not employing standard of described Gerber file is named, reading after Gerber file, utilize graphics technology to recognize PCB circuit and layer and claim by the layer another name that the default other naming rule of layer revised Gerber file, claiming automatically by layer Pai Xu not according to layer another name.
8. system according to claim 6, is characterized in that, described engineering parameter acquisition module specifically comprises:
The first resolution unit, for resolving described Gerber file acquisition to top line regional extent, obtains primary drilling form and position distribution region according to described parameter extraction rule with reference to described top line regional extent, and with the contraposition of top layer pad center point;
Drilling parameter acquiring unit, for determining after boring according to contraposition success ratio, get bore position, minimum hole count and minimum-value aperture, connect attribute according to the blind buried via hole of default boring naming rule definition boring file, and align with outer-layer circuit by drill center;
Aperture display unit, for showing the use information of aperture table, and use element corresponding to the current aperture of checking of highlighted demonstration;
Profile determining unit, for according to the selection element of the figure of Gerber file, builds the profile of PCB, and calculates continuous maximum outline, forms Profile;
Computing unit, for calculating test point, the gong journey of PCB and needing surface-treatedization gold area, generates the form of the tool-information of boring.
9. system according to claim 6, is characterized in that, described engineering parameter acquisition module specifically comprises:
Negative film element delete cells, for resolving described Gerber file acquisition PCB negative film element, deletes described PCB negative film element;
Screening unit, being used for choosing a pel is start element, to differ the scope of searching for spacing into default minimum as search unit with figure elemental area, the network that search is connected with start element, and the pel of the non-consolidated network detecting, non-dimension line is defined as to fault situation;
Minimum line is apart from acquiring unit, for screening after ascending the pel that belong to fault situation sequence, to get minimum line distance.
10. system according to claim 6, is characterized in that, described engineering parameter acquisition module also comprises:
Traversal unit, for traveling through described file bag, the text that is consolidation form by the document analysis that wherein comprised;
Matching unit, utilizes the text that preset general engineering parameter descriptive language rule base mates described consolidation form to extract engineering parameter description document, and collects the control information comprising in plate-making supporting paper;
Described system also comprises:
Preset module, for preset described parameter extraction rule and/or general engineering parameter descriptive language rule base;
Derive module, for Gerber file being exported as to RS274X formatted file and/or ODB++ formatted file.
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| CN201410075847.6A CN103823882A (en) | 2014-03-03 | 2014-03-03 | Method and system for automatically auditing PCB project files |
| PCT/CN2014/079374 WO2015131457A1 (en) | 2014-03-03 | 2014-06-06 | Method and system for automatically auditing pcb project file |
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| CN201410075847.6A CN103823882A (en) | 2014-03-03 | 2014-03-03 | Method and system for automatically auditing PCB project files |
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Application publication date: 20140528 |