CN102788922A - Security inspection system and method for power supply wiring of PCB (printed circuit board) - Google Patents
Security inspection system and method for power supply wiring of PCB (printed circuit board) Download PDFInfo
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- CN102788922A CN102788922A CN2011101291227A CN201110129122A CN102788922A CN 102788922 A CN102788922 A CN 102788922A CN 2011101291227 A CN2011101291227 A CN 2011101291227A CN 201110129122 A CN201110129122 A CN 201110129122A CN 102788922 A CN102788922 A CN 102788922A
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Abstract
The invention provides a security inspection system for the power supply wiring of a PCB (printed circuit board), comprising a determination module, an inspection module and a marking module. The determination module is used for determining one electronic element to be inspected from a wiring drawing of the PCB and selecting one power cord from the wiring drawing; the inspection module is used for inspecting whether the electronic element to be inspected in the wiring drawing and a plurality of grounded pins which are connected with the power cord are connected on the same through holes or not; and the marking module is used for marking the same through holes on which the grounded pins are connected in the wiring drawing when it detects that the grounded pins are connected on the same through holes. The invention further provides a security inspection method for the power supply wiring of the PCB. Due to the adoption of the security inspection system and method, the through holes probably having power supply safety hazards in the wiring drawing of the PCB can be inspected quickly and accurately.
Description
Technical field
The present invention relates to a kind of safety check system and method for printed circuit board power wiring.
Background technology
Along with improving constantly of server and reservoir product complexity, also gradually complicated to the design of product power supply.Before product turnout, need carry out many inspection actions to guarantee the power safety of product.Wherein, Especially the most important with the security of power regulator (Voltage Regulator) or power connector; Must guarantee that to the inspection of these electronic components all grounding pins that are connected with power lead all are connected independently on the via hole (Via), thereby guarantee the power safety of product.
In addition, present electronic component, for higher usefulness can be provided, its required electric current is also in continuous increase.Owing between coiling on the printed circuit board (PCB) (PCB) and the via hole stray inductance effect is arranged, when a momentary current flows through coiling, can produce a transient voltage disturbance.This transient voltage disturbance can be used following formulate:
Wherein, L represents the stray inductance of PCB coiling and via hole, and di/dt then is the switching rate (slew rate) of momentary current.If the grounding pin (GND) of electronic component all is connected independently on the via hole, the stray inductance that is produced just can reduce, and makes voltage disturbance also and then diminish, thereby guarantees that WV is more stable.
Whether the grounding pin that therefore, electronic component is connected with power lead in the inspection PCB layout figure shelves is connected independently on the via hole is a very important inspection item.Yet not reliably inspection software is not available now, must check one by one with the mode of manual work, not only loses time and human cost, also can't guarantee the reliability checked, even maybe be because of checking the damage that causes product not in place.If product applies to special places such as hospital, also may cause the tragedy that to save.
Summary of the invention
In view of above content, be necessary to provide a kind of safety check system of printed circuit board power wiring, it can be to existing the via hole of power safety hidden danger to check fast and accurately in the printed circuit board wiring figure shelves.
Also be necessary to provide a kind of safety detection method of printed circuit board power wiring, it can be to existing the via hole of power safety hidden danger to check fast and accurately in the printed circuit board wiring figure shelves.
The safety check system of said printed circuit board power wiring comprises: determination module is used for confirming from the wiring diagram shelves of printed circuit board (PCB) the electronic component of an examine, and from these wiring diagram shelves, selects a power lead; The inspection module; Be used for whether being connected with said power lead at the electronic component of the said examine of said wiring diagram shelves inspection; When the electronic component of checking out this examine is connected with this power lead; Check that whether this power lead is connected with a plurality of grounding pins of the electronic component of this examine; And whether when checking out that a plurality of grounding pins of this power lead with the electronic component of this examine are connected, checking in a plurality of grounding pins that connect with this power lead has two or more pins to be connected on the identical via hole in the said wiring diagram shelves; And mark module, be used for when checking out that two or more pins are connected on the identical via hole, the identical via hole that this two or more pin connected being carried out mark in said wiring diagram shelves.
The safety detection method of said printed circuit board power wiring comprises: confirm step, from the wiring diagram shelves of printed circuit board (PCB), confirm the electronic component of an examine; Select step, from said wiring diagram shelves, select a power lead; The first inspection step, whether the electronic component of the said examine of inspection is connected with said power lead in said wiring diagram shelves; The second inspection step if the electronic component of said examine is connected with said power lead, checks that whether said power lead is connected with a plurality of grounding pins of the electronic component of said examine; The 3rd inspection step, whether if said power lead is connected with a plurality of grounding pins of the electronic component of said examine, checking in a plurality of grounding pins that connect with this power lead has two or more pins to be connected on the identical via hole in the wiring diagram shelves; And markers step, if there are two or more pins to be connected on the identical via hole, the identical via hole that this two or more pin connected is carried out mark in said wiring diagram shelves.
Compared to prior art, the safety check system and the method for said printed circuit board power wiring can be to existing the via hole of power safety hidden danger to check fast and accurately in the printed circuit board wiring figure shelves.When checking out the via hole of power safety hidden danger; In PCB layout figure shelves, mark this via hole; Make the designer to do modify to this PCB layout figure shelves, thereby guarantee the security and the stability of PCB power-supply wiring according to the via hole of institute's mark in the PCB layout figure shelves.
Description of drawings
Fig. 1 is the applied environment Organization Chart of the safety check system of printed circuit board power wiring of the present invention.
Fig. 2 is the process flow diagram of the safety detection method of printed circuit board power wiring of the present invention.
Fig. 3 is the synoptic diagram of the operation interface that safety check system provided among Fig. 1.
Fig. 4 is the synoptic diagram of a checked chip in PCB layout figure shelves.
The main element symbol description
| Computing machine | 1 |
| Safety check system | 10 |
| Storer | 11 |
| Processor | 12 |
| Determination module | 101 |
| The inspection module | 102 |
| Mark module | 103 |
| Operation interface | 3 |
| Element key |
30 |
| The element area that finds | 31 |
| The element area of selecting | 32 |
| The power |
33 |
| Chip | 4 |
| Via hole | 41 |
| Frame of broken lines | 42 |
Following embodiment will combine above-mentioned accompanying drawing to further specify the present invention.
Embodiment
As shown in Figure 1, be the applied environment Organization Chart of the safety check system of printed circuit board power wiring of the present invention.Said safety check system 10 is applied in the computing machine 1.In the present embodiment, this safety check system 10 comprises determination module 101, inspection module 102 and mark module 103.This safety check system 10 is stored in the storer 11 of computing machine 1; Execution by processor 12 these safety check systems 10 of control; To realize that the present invention utilizes 10 pairs of printed circuit board (PCB)s of this safety check system (Printed Circuit Board; PCB) electronic component in the wiring diagram shelves checks, thereby checks out in the electronic component and to be connected with power lead and the grounding pin (GND) of a shared via hole.The wiring diagram shelves of this PCB are kept in the said storer 11 in advance.
Below in conjunction with Fig. 2, said safety check system 10 is elaborated.
As shown in Figure 2, be the process flow diagram of the safety detection method of printed circuit board power wiring of the present invention.
Step S01, said determination module 101 confirm the electronic component of an examine from the wiring diagram shelves of said PCB.Particularly, this determination module 101 confirms that the method for this examine electronic component is: at first, receive the key word of the examine electronic component of user's input; Then, from this PCB layout figure shelves, find out the electronic component that all comprise this key word; At last, user's selected electronic component from the electronic component that finds out is confirmed as the electronic component of said examine.
As shown in Figure 3, the user can operate on the operation interface that said safety check system 10 is provided accordingly, thereby determines the electronic component of examine.For example; The user can import key word " U " in the element key word input frame 30 in the operation interface 3; Said then determination module 101 finds out the electronic component that all comprise this key word " U " according to the key word " U " of this input in the wiring diagram shelves of said PCB; And be presented in the element area that finds 31; An electronic component can be selected by end user in this element area that finds 31, the electronic component of this selection is promptly confirmed as the electronic component of said examine by said determination module 101, and is presented in the element area 32 of a selection.
Step S02, said determination module 101 select a power lead from said wiring diagram shelves.Particularly, this power lead also can be selected by the title of input power cord in the power lead input frame 33 of user in operation interface shown in Figure 33.For example, if the name of user's input power cord is called " P12V ", 101 power leads of in PCB layout figure shelves, selecting 12V of this determination module so.
Step S03, said inspection module 102 checks in said wiring diagram shelves whether the electronic component of said examine is connected with said power lead.If the electronic component of this examine is connected execution in step S04 with this power lead.Otherwise, be not connected as if the electronic component of this examine, then process ends with this power lead.Particularly, the signal wire under each pin of the electronic component of this examine all has, said power lead is a kind of of signal wire.Therefore, if the signal wire under any pin in the electronic component of this examine is said power lead, represent that then the electronic component of this examine is connected with this power lead.Otherwise, represent that then the electronic component of this examine is not connected with this power lead.
Whether step S04, the said power lead of said inspection module 102 inspections are connected with a plurality of grounding pins of the electronic component of said examine.Be connected with a plurality of grounding pins of the electronic component of this examine as if this power lead, then execution in step S05.Otherwise, if this power lead is not connected with a plurality of grounding pins of the electronic component of this examine, process ends then.
Step S05, said inspection module 102 checks in a plurality of grounding pins that connect with said power lead whether have two or more pins to be connected on the identical via hole in the said wiring diagram shelves.If there are two or more pins to be connected on the identical via hole, execution in step S06 then.Otherwise, if there are not two or more pins to be connected on the identical via hole, process ends then.Particularly, in PCB layout figure shelves, each via hole all has a coordinate, if the coordinate of the via hole that two or more pin connected is identical, representes that then these two or more pins are connected on the identical via hole.
Step S06, said mark module 103 carries out mark with the identical via hole that said two or more pin connected in said wiring diagram shelves.For example shown in Figure 4, if two grounding pins of said chip (IC) 4 are connected on the via hole 41 simultaneously, 103 with dashed lines frames 42 of this mark module carry out mark with this via hole 41 in said wiring diagram shelves so.When in the said wiring diagram shelves via hole that is labeled being arranged, the designer then can do modify to these wiring diagram shelves, thereby guarantees the security of PCB power-supply wiring.
Above embodiment is only unrestricted in order to technical scheme of the present invention to be described; Although the present invention is specified with reference to preferred embodiment; Those of ordinary skill in the art is to be understood that; Can make amendment or be equal to replacement technical scheme of the present invention, and not break away from the spirit and the scope of technical scheme of the present invention.
Claims (4)
1. the safety detection method of printed circuit board power wiring is characterized in that this method comprises:
Confirm step, from the wiring diagram shelves of printed circuit board (PCB), confirm the electronic component of an examine;
Select step, from said wiring diagram shelves, select a power lead;
The first inspection step, whether the electronic component of the said examine of inspection is connected with said power lead in said wiring diagram shelves;
The second inspection step if the electronic component of said examine is connected with said power lead, checks that whether said power lead is connected with a plurality of grounding pins of the electronic component of said examine;
The 3rd inspection step, whether if said power lead is connected with a plurality of grounding pins of the electronic component of said examine, checking in a plurality of grounding pins that connect with this power lead has two or more pins to be connected on the identical via hole in the wiring diagram shelves; And
Markers step if there are two or more pins to be connected on the identical via hole, is carried out mark with the identical via hole that this two or more pin connected in said wiring diagram shelves.
2. the safety detection method of printed circuit board power wiring as claimed in claim 1 is characterized in that said definite step comprises:
Receive the key word of the examine electronic component of user's input;
From said wiring diagram shelves, find out the electronic component that all comprise this key word; And
User's selected electronic component from the electronic component that finds out is confirmed as the electronic component of said examine.
3. the safety check system of printed circuit board power wiring is characterized in that this system comprises:
Determination module is used for confirming from the wiring diagram shelves of printed circuit board (PCB) the electronic component of an examine, and from these wiring diagram shelves, selects a power lead;
The inspection module; Be used for whether being connected with said power lead at the electronic component of the said examine of said wiring diagram shelves inspection; When the electronic component of checking out this examine is connected with this power lead; Check that whether this power lead is connected with a plurality of grounding pins of the electronic component of this examine; And whether when checking out that a plurality of grounding pins of this power lead with the electronic component of this examine are connected, checking in a plurality of grounding pins that connect with this power lead has two or more pins to be connected on the identical via hole in the said wiring diagram shelves; And
Mark module is used for when checking out that two or more pins are connected on the identical via hole, the identical via hole that this two or more pin connected being carried out mark in said wiring diagram shelves.
4. the safety check system of printed circuit board power wiring as claimed in claim 3 is characterized in that said determination module is confirmed the electronic component of said examine through following steps:
Receive the key word of the examine electronic component of user's input;
From said wiring diagram shelves, find out the electronic component that all comprise this key word; And
User's selected electronic component from the electronic component that finds out is confirmed as the electronic component of said examine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101291227A CN102788922A (en) | 2011-05-18 | 2011-05-18 | Security inspection system and method for power supply wiring of PCB (printed circuit board) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101291227A CN102788922A (en) | 2011-05-18 | 2011-05-18 | Security inspection system and method for power supply wiring of PCB (printed circuit board) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102788922A true CN102788922A (en) | 2012-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101291227A Pending CN102788922A (en) | 2011-05-18 | 2011-05-18 | Security inspection system and method for power supply wiring of PCB (printed circuit board) |
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Citations (5)
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| CN1982843A (en) * | 2005-12-15 | 2007-06-20 | 鸿富锦精密工业（深圳）有限公司 | System and method for inspecting differential signal line deviation |
| CN101557675A (en) * | 2008-04-11 | 2009-10-14 | 鸿富锦精密工业（深圳）有限公司 | Printed circuit board and wiring method thereof |
| CN101930030A (en) * | 2009-06-26 | 2010-12-29 | 鸿富锦精密工业（深圳）有限公司 | Test system and method of characteristic impedance of electronic signal wires |
| US20110035713A1 (en) * | 2009-08-07 | 2011-02-10 | Hon Hai Precision Industry Co., Ltd. | Circuit board design system and method |
| US20110106481A1 (en) * | 2009-10-29 | 2011-05-05 | Hon Hai Precision Industry Co., Ltd. | System and method for checking ground vias of a controller chip of a printed circuit board |
-
2011
- 2011-05-18 CN CN2011101291227A patent/CN102788922A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1982843A (en) * | 2005-12-15 | 2007-06-20 | 鸿富锦精密工业（深圳）有限公司 | System and method for inspecting differential signal line deviation |
| CN101557675A (en) * | 2008-04-11 | 2009-10-14 | 鸿富锦精密工业（深圳）有限公司 | Printed circuit board and wiring method thereof |
| CN101930030A (en) * | 2009-06-26 | 2010-12-29 | 鸿富锦精密工业（深圳）有限公司 | Test system and method of characteristic impedance of electronic signal wires |
| US20110035713A1 (en) * | 2009-08-07 | 2011-02-10 | Hon Hai Precision Industry Co., Ltd. | Circuit board design system and method |
| US20110106481A1 (en) * | 2009-10-29 | 2011-05-05 | Hon Hai Precision Industry Co., Ltd. | System and method for checking ground vias of a controller chip of a printed circuit board |
| CN102053205A (en) * | 2009-10-29 | 2011-05-11 | 鸿富锦精密工业（深圳）有限公司 | Grounding pin detection system and method |
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Application publication date: 20121121 |