CN107194058A - One kind is segmented isometric automatic checking method and system based on differential pair on PCB - Google Patents
One kind is segmented isometric automatic checking method and system based on differential pair on PCB Download PDFInfo
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- CN107194058A CN107194058A CN201710355397.XA CN201710355397A CN107194058A CN 107194058 A CN107194058 A CN 107194058A CN 201710355397 A CN201710355397 A CN 201710355397A CN 107194058 A CN107194058 A CN 107194058A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/30—Circuit design
- G06F30/39—Circuit design at the physical level
- G06F30/398—Design verification or optimisation, e.g. using design rule check [DRC], layout versus schematics [LVS] or finite element methods [FEM]
Abstract
The isometric automatic checking method of differential pair segmentation and system in PCB layout are based on the invention provides a kind of.Isometric rule is segmented by inputting the differential signal line to be checked and differential pair, realize and automatic check differential pair every layer of line length gap in the pcb, designer is fed back in time checks information, and navigate on circuit board, designer is facilitated to modify, meanwhile, inspection result can be stored in computer in the form of text, facilitate designer to browse analysis.
Description
Technical field
The present invention relates to the technical field of server design, and in particular to isometric based on differential pair segmentation on PCB to one kind
Automatic checking method and system.
Background technology
Conventionally, as differential pair has strong antijamming capability, can effective suppression electromagnetic interference, sequential positioning is accurate
The advantage such as true, so for HW High Way in electronic product, being transmitted usually using differential pair.Differential pair is big by signal
It is small equal, phase differ 180 ° two signal line groups into.Keep the both threads in differential pair symmetrical, differential mode can be avoided to altogether
Mould is changed, it is ensured that link signal integrality is good, and system is normally run.
With the use of multi-layer PCB, a pair of differential pairs are not only walked in an aspect, can go to other layer by punching
Face.This has resulted in signal and has been transmitted in different layers, i.e., signal is in different media environments.So, it is ensured that difference
To symmetrical, just more than differential pair both threads overall length meets certain requirements, and is segmented the length of two of differential pair in isometric i.e. every layer
Degree difference also needs to meet certain requirements.It just can guarantee that good signal quality.
In current wiring software, the difference between the overall length of both threads in differential pair can only be checked, it is impossible to check difference automatically
To line length difference between the different layers.Manually a pair pairs can only be carried out and checked manually.Hand inspection not only takes but also held
Easily there is missing inspection situation.So substantial amounts of man-hour can be reduced by developing this automatic checking tool, shorten the construction cycle, and will not
There is missing inspection situation.
The content of the invention
Based on above mentioned problem, the present invention proposes that one kind is segmented isometric automatic checking method based on differential pair on PCB and is
System, feeds back to designer and checks information in time, and navigates on circuit board, facilitates designer to modify.
The present invention provides following technical scheme：
On the one hand, the present invention provides a kind of based on the isometric automatic checking method of differential pair segmentation on PCB, including：
Step A, selects the differential lines to be checked, according to user's demands on examination, inputs the differential signal line to be checked；
Every layer of cabling gap rule, according to selected signal wire, inputs its corresponding cabling between step B, input difference pair
Rule；
Step C, differential pair segmentation is checked；
Step D, inspection result shows and positioned, and when inspection is finished, instrument can include inspection result in inspection result region；
Step E, the inspection result is stored.
Wherein, the differential pair is segmented inspection specifically, to selected signal wire, the signal wire is checked automatically, right
The line length of every layer of cabling is calculated, and calculates difference, the difference is contrasted with rule, if the absolute difference is more than
Value in rule, then Fail, otherwise Pass.
Wherein, the input differential signal line to be checked is input keyword, chooses the signal wire filtered out.
Wherein, when inspection is finished, inspection result, which also preserves into txt forms and is stored in computer, to be browsed and is filed.
In addition, the present invention also provides a kind of based on the isometric automation inspection system of differential pair segmentation, the system bag on PCB
Include：
Selecting module, for selecting the differential lines to be checked, according to user's demands on examination, inputs the differential signal line to be checked；
Rule module, for every layer of cabling gap rule between input difference pair, according to selected signal wire, inputs its correspondence
Cabling rule；
Contrast module, is segmented for differential pair and checks；
Result display module, inspection result shows and positioned, and when inspection is finished, instrument can include inspection result in inspection result
Region；
As a result memory module, the inspection result is stored.
The contrast module specifically for selected signal wire, checking the signal wire, to every layer of cabling automatically
Line length is calculated, and calculates difference, and the difference is contrasted with rule, if the absolute difference is more than in rule
It is worth, then Fail, otherwise Pass.
Wherein, the input differential signal line to be checked is input keyword, chooses the signal wire filtered out.
Wherein, when inspection is finished, inspection result, which also preserves into txt forms and is stored in computer, to be browsed and is filed.
The isometric automatic checking method of differential pair segmentation and system in PCB layout are based on the invention provides a kind of.It is logical
Cross the differential signal line to be checked of input and differential pair is segmented isometric rule, realize and automatic check every layer in the pcb of differential pair
Line length gap, feeds back to designer and checks information in time, and navigates on circuit board, facilitates designer to modify, meanwhile, inspection
The fruit that comes to an end can be stored in computer in the form of text, facilitate designer to browse analysis.
Brief description of the drawings
Fig. 1 is the method and step flow chart of the present invention；
Fig. 2 is the system architecture diagram of the present invention；
Fig. 3 is the system main interface figure of the present invention；
The system that Fig. 4-8 is the present invention uses schematic diagram.
Embodiment
Technical scheme in order to illustrate the embodiments of the present invention more clearly, below by using required in embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for ability
For the those of ordinary skill of domain, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other attached
Figure.
The present invention provides a kind of based on the isometric automatic checking method of differential pair segmentation on PCB, and method and step flow chart is such as
Shown in accompanying drawing 1, system uses schematic diagram such as accompanying drawing 4-8, including：
Step 101, the differential lines to be checked are selected, according to user's demands on examination, the differential signal line to be checked are inputted；
Select the differential lines to be checked.According to user's demands on examination, the differential signal line to be checked is inputted, user clicks on master
Page Select Net to Check, eject secondary interface, the signal new keywords to be checked are inputted in secondary interface, only
Keyword (such as * DP* or * DN*) need to be inputted, All is clicked on and is moved in Selected Objects, choose what is filtered out
Signal wire.
Step 102, every layer of cabling gap rule between input difference pair, according to selected signal wire, inputs its correspondence
Cabling rule；
The length difference that every layer of both threads are allowed in input difference pair in homepage, clicks on review button.
Step 103, differential pair segmentation is checked；
Differential pair segmentation is checked.To selected signal wire, instrument checks a certain signal wire, such as * DN, then with it automatically
The line length that corresponding * DP carry out every layer of cabling is calculated, and calculates difference.Then the difference this calculated and b) in input
Rule contrasted, if absolute value be more than it, Fail, if absolute value less than it, Pass.
Step 104, inspection result shows and positioned, and when inspection is finished, instrument can include inspection result in inspection result
Region；
Inspection result shows and positioned.When inspection is finished, instrument can include inspection result in inspection result region, convenient
User checks.When user clicks on any a line, the page can be navigated to that signal line region, facilitate user to be repaiied
Change.
Step 105, the inspection result is stored.
Inspection result is stored.When inspection is finished, inspection result can also preserve into .txt forms be stored in computer carry out it is clear
Look at and file.Clicked in homepage and report me just, you can generation report.
The isometric automatic checking method of differential pair segmentation in PCB layout is based on the invention provides a kind of, passes through input
The differential signal line and differential pair to be checked are segmented isometric rule, realize it is automatic check differential pair in the pcb every layer line length it is poor
Away from, designer is fed back in time checks information, and navigate on circuit board, facilitate designer to modify, meanwhile, inspection result
It can store in the form of text in computer, facilitate designer to browse analysis.
Embodiments of the present invention additionally provide a kind of automation inspection system isometric based on differential pair segmentation in PCB layout
System, as shown in Fig. 2 system main interface such as accompanying drawing 3 is used, system uses schematic diagram as shown in accompanying drawing 4-8, the system bag
Include：
Selecting module 201, for selecting the differential lines to be checked, according to user's demands on examination, inputs the difference to be checked
Signal wire；
Select the differential lines to be checked.According to user's demands on examination, the differential signal line to be checked is inputted, user clicks on master
Page Select Net to Check, eject secondary interface, the signal new keywords to be checked are inputted in secondary interface, only
Keyword (such as * DP* or * DN*) need to be inputted, All is clicked on and is moved in Selected Objects, choose what is filtered out
Signal wire.
Rule module 202, it is defeated according to selected signal wire for every layer of cabling gap rule between input difference pair
Enter its corresponding cabling rule；
The length difference that every layer of both threads are allowed in input difference pair in homepage, clicks on review button.
Contrast module 203, is segmented for differential pair and checks；
Differential pair segmentation is checked.To selected signal wire, instrument checks a certain signal wire, such as * DN, then with it automatically
The line length that corresponding * DP carry out every layer of cabling is calculated, and calculates difference.Then the difference this calculated and b) in input
Rule contrasted, if absolute value be more than it, Fail, if absolute value less than it, Pass.
Result display module 204, inspection result shows and positioned, and when inspection is finished, instrument can include inspection result
Inspection result region；
Inspection result shows and positioned.When inspection is finished, instrument can include inspection result in inspection result region, convenient
User checks.When user clicks on any a line, the page can be navigated to that signal line region, facilitate user to be repaiied
Change.
As a result memory module 205, the inspection result is stored.
Inspection result is stored.When inspection is finished, inspection result can also preserve into .txt forms be stored in computer carry out it is clear
Look at and file.
The isometric automation inspection system of differential pair segmentation in PCB layout is based on the invention provides a kind of, passes through input
The differential signal line and differential pair to be checked are segmented isometric rule, realize it is automatic check differential pair in the pcb every layer line length it is poor
Away from, designer is fed back in time checks information, and navigate on circuit board, facilitate designer to modify, meanwhile, inspection result
It can store in the form of text in computer, facilitate designer to browse analysis.
The foregoing description of the disclosed embodiments, enables those skilled in the art to realize or using the present invention.To this
A variety of modifications of a little embodiments will be apparent for a person skilled in the art, and generic principles defined herein can
Without departing from the spirit or scope of the present invention, to realize in other embodiments.Therefore, the present invention will not be limited
The embodiments shown herein is formed on, but meets the most wide model consistent with features of novelty with principles disclosed herein
Enclose.
Claims (8)
1. one kind is segmented isometric automatic checking method based on differential pair on PCB, it is characterised in that：
Step A, selects the differential lines to be checked, according to user's demands on examination, inputs the differential signal line to be checked；
Every layer of cabling gap rule, according to selected signal wire, inputs its corresponding cabling between step B, input difference pair
Rule；
Step C, differential pair segmentation is checked；
Step D, inspection result shows and positioned, and when inspection is finished, instrument can include inspection result in inspection result region；
Step E, the inspection result is stored.
2. according to the method described in claim 1, it is characterised in that：The differential pair segmentation is checked specifically, to selected
Signal wire, checks the signal wire automatically, and the line length of every layer of cabling is calculated, and calculates difference, by the difference and rule
Contrasted, if the absolute difference is more than the value in rule, Fail, otherwise Pass.
3. according to the method described in claim 1, it is characterised in that：The input differential signal line to be checked is crucial for input
Word, chooses the signal wire filtered out.
4. according to the method described in claim 1, it is characterised in that：When inspection is finished, inspection result also preserves into txt forms and deposited
Browsed and filed into computer.
5. one kind is segmented isometric automation inspection system based on differential pair on PCB, it is characterised in that：The system includes：
Selecting module, for selecting the differential lines to be checked, according to user's demands on examination, inputs the differential signal line to be checked；
Rule module, for every layer of cabling gap rule between input difference pair, according to selected signal wire, inputs its correspondence
Cabling rule；
Contrast module, is segmented for differential pair and checks；
Result display module, inspection result shows and positioned, and when inspection is finished, instrument can include inspection result in inspection result
Region；As a result memory module, the inspection result is stored.
6. system according to claim 5, it is characterised in that：The contrast module is specifically for selected signal
Line, checks the signal wire automatically, and the line length of every layer of cabling is calculated, and calculates difference, and the difference is carried out with rule
Contrast, if the absolute difference is more than the value in rule, Fail, otherwise Pass.
7. system according to claim 5, it is characterised in that：The input differential signal line to be checked is crucial for input
Word, chooses the signal wire filtered out.
8. system according to claim 5, it is characterised in that：When inspection is finished, inspection result also preserves into txt forms and deposited
Browsed and filed into computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710355397.XA CN107194058A (en) | 2017-05-19 | 2017-05-19 | One kind is segmented isometric automatic checking method and system based on differential pair on PCB |
Applications Claiming Priority (1)
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|---|---|---|---|
| CN201710355397.XA CN107194058A (en) | 2017-05-19 | 2017-05-19 | One kind is segmented isometric automatic checking method and system based on differential pair on PCB |
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| CN107194058A true CN107194058A (en) | 2017-09-22 |
Family
ID=59874284
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| CN201710355397.XA Pending CN107194058A (en) | 2017-05-19 | 2017-05-19 | One kind is segmented isometric automatic checking method and system based on differential pair on PCB |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108388535A (en) * | 2018-01-25 | 2018-08-10 | 郑州云海信息技术有限公司 | A kind of isometric inspection method of IC bus multiterminal signal wire and system |
| CN108417231A (en) * | 2018-02-28 | 2018-08-17 | 四川斐讯信息技术有限公司 | A kind of the line length detection method and system of DDR wirings |
| CN108549756A (en) * | 2018-04-02 | 2018-09-18 | 郑州云海信息技术有限公司 | Checked in a kind of placement-and-routing high-speed line across island method and system |
| CN109241594A (en) * | 2018-08-23 | 2019-01-18 | 郑州云海信息技术有限公司 | T-type topological structure wire length inspection method, device, equipment and readable storage medium storing program for executing |
| CN109492310A (en) * | 2018-11-14 | 2019-03-19 | 郑州云海信息技术有限公司 | A kind of method and check device of the inspection of line |
| CN109684770A (en) * | 2019-01-09 | 2019-04-26 | 郑州云海信息技术有限公司 | The inspection method and relevant apparatus of difference through hole in a kind of PCB |
| CN111291527A (en) * | 2020-01-15 | 2020-06-16 | 苏州浪潮智能科技有限公司 | Differential line spacing checking method, device, equipment and storage medium |
| US10684123B2 (en) | 2018-01-16 | 2020-06-16 | Cisco Technology, Inc. | Fiber weave skew assessment for printed circuit boards |
| CN111475991A (en) * | 2020-03-11 | 2020-07-31 | 苏州浪潮智能科技有限公司 | Method and system for automatically checking manufacturability of PIP part in PCB design |
| CN112306772A (en) * | 2020-10-30 | 2021-02-02 | 苏州浪潮智能科技有限公司 | Equal-length detection method for DDR and memory particles and related equipment |
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| CN115081389A (en) * | 2022-06-17 | 2022-09-20 | 苏州浪潮智能科技有限公司 | Printed circuit board routing inspection method, device, equipment and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US11781858B2 (en) | 2018-01-16 | 2023-10-10 | Cisco Technology, Inc. | Fiber weave skew assessment for printed circuit boards |
| US11761755B2 (en) | 2018-01-16 | 2023-09-19 | Cisco Technology, Inc. | Fiber weave skew assessment for printed circuit boards |
| US11293752B2 (en) | 2018-01-16 | 2022-04-05 | Cisco Technology, Inc. | Fiber weave skew assessment for printed circuit boards |
| US10684123B2 (en) | 2018-01-16 | 2020-06-16 | Cisco Technology, Inc. | Fiber weave skew assessment for printed circuit boards |
| US11287245B2 (en) | 2018-01-16 | 2022-03-29 | Cisco Technology, Inc. | Fiber weave skew assessment for printed circuit boards |
| CN108388535A (en) * | 2018-01-25 | 2018-08-10 | 郑州云海信息技术有限公司 | A kind of isometric inspection method of IC bus multiterminal signal wire and system |
| CN108417231A (en) * | 2018-02-28 | 2018-08-17 | 四川斐讯信息技术有限公司 | A kind of the line length detection method and system of DDR wirings |
| CN108549756A (en) * | 2018-04-02 | 2018-09-18 | 郑州云海信息技术有限公司 | Checked in a kind of placement-and-routing high-speed line across island method and system |
| CN109241594A (en) * | 2018-08-23 | 2019-01-18 | 郑州云海信息技术有限公司 | T-type topological structure wire length inspection method, device, equipment and readable storage medium storing program for executing |
| CN109241594B (en) * | 2018-08-23 | 2021-10-29 | 郑州云海信息技术有限公司 | Method, device and equipment for checking length of T-shaped topological structure wire and readable storage medium |
| CN109492310B (en) * | 2018-11-14 | 2021-10-29 | 郑州云海信息技术有限公司 | Line inspection method and inspection device |
| CN109492310A (en) * | 2018-11-14 | 2019-03-19 | 郑州云海信息技术有限公司 | A kind of method and check device of the inspection of line |
| CN109684770B (en) * | 2019-01-09 | 2022-02-18 | 郑州云海信息技术有限公司 | Method for checking differential via hole in PCB and related device |
| CN109684770A (en) * | 2019-01-09 | 2019-04-26 | 郑州云海信息技术有限公司 | The inspection method and relevant apparatus of difference through hole in a kind of PCB |
| CN111291527A (en) * | 2020-01-15 | 2020-06-16 | 苏州浪潮智能科技有限公司 | Differential line spacing checking method, device, equipment and storage medium |
| CN111291527B (en) * | 2020-01-15 | 2022-06-21 | 苏州浪潮智能科技有限公司 | Differential line spacing checking method, device, equipment and storage medium |
| CN111475991A (en) * | 2020-03-11 | 2020-07-31 | 苏州浪潮智能科技有限公司 | Method and system for automatically checking manufacturability of PIP part in PCB design |
| CN111475991B (en) * | 2020-03-11 | 2023-01-10 | 苏州浪潮智能科技有限公司 | Method and system for automatically checking manufacturability of PIP part in PCB design |
| WO2022001132A1 (en) * | 2020-06-29 | 2022-01-06 | 苏州浪潮智能科技有限公司 | Routing inspection method and apparatus for printed circuit board, and computer-readable storage medium |
| CN112306772A (en) * | 2020-10-30 | 2021-02-02 | 苏州浪潮智能科技有限公司 | Equal-length detection method for DDR and memory particles and related equipment |
| CN115081389A (en) * | 2022-06-17 | 2022-09-20 | 苏州浪潮智能科技有限公司 | Printed circuit board routing inspection method, device, equipment and storage medium |
| CN115081389B (en) * | 2022-06-17 | 2024-01-23 | 苏州浪潮智能科技有限公司 | Printed circuit board wiring inspection method, device, equipment and storage medium |
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