Kana uchida kuita PCB Iamge kuti Schematic, unofanira kutanga pcb reverse engineering nokutora yakajeka pcb mufananidzo. Iyi nhanho inokubatsira kuti utarise dhizaini uye uteedzere kubatana kwega kwega kweiyo schematic. Unoshandisa zvose Chinyorwa uye otomatiki nzira nechokwadi schematic wako akafanana pcb chaiyo. Kutaura chokwadi kwakakosha nekuti manotsi akanaka anokubatsira kudzidza dhizaini uye kuratidza vamwe basa rako. The reverse ouinjiniya matanho anoda kutarisirwa saka unogona kushandura pcb mufananidzo muuzere schematic uye kunyora zvakanaka manotsi nokuda gare gare zvirongwa.
Zvitsva Zvitsva
Tanga nemifananidzo yakajeka uye yakapinza yePCB. Shandisa chiedza chakanaka uye maturusi akakodzera kuona zvese.
Rongedza uye mutsara mapikicha ePCB usati watanga kutsvaga. Izvi zvinokubatsira kuti uone zvinongedzo zviri nani.
Tevedzera padhi yega yega uye tsvaga nekungwarira. Shandisa maoko ako uye software pamwe chete kugadzira chaiyo netlist.
Ita schematics ine EDA zvishandiso seKiCad uye SKiDL. Tarisa basa rako nguva nenguva kuti usakanganisa.
Tarisa hurongwa hwako nekutarisa paPCB chaiyo. Mhanya dhizaini macheki uye nyora akajeka manotsi pane zvaunowana.
Zvishandiso uye Setup
Zvishandiso Zvinokosha
Unoda maturusi akakodzera kudzosera kumashure mainjiniya pcb. Zvishandiso izvi zvinokubatsira kuona chikamu chose chePCB. Vanoitawo kuti basa rako rive nyore. Hezvino zvimwe zvinhu zvaunofanira kushandisa:
Yakakwira-resolution kamera kana scanner: Tora yakapinza mapikicha eiyo pcb dhizaini.
Kuvhenekera kwakanaka: vhenekera pcb kuitira kuti uone zvikamu zvese.
Girazi rinokudza kana maikorosikopu: Ona zvidimbu zvidiki uye zvidiki.
Maturusi ekugadzirisa mufananidzo: Gadzirisa uye chenesa mifananidzo yako usati wateedzera.
X-ray michina kana 3D scanning hurongwa: Tarisa mukati multilayer pcb mapuranga, sezvinoita chiremba anoshandisa CT scan.
Multimeter: Edza kubatana uye tarisa basa rako paunenge uchitsvaga.
Zano: Chenesa pcb yako usati watora chero mifananidzo. Guruva kana mafingerprints anogona kuvanza zvinhu zvidiki. Isa pcb panzvimbo yakati sandara, yakasviba. Ita shuwa kuti nzvimbo yako yebasa inopenya uye ine nzvimbo yezvishandiso zvako.
Software Overview
Unofanira inokosha Software kutendeuka pcb mifananidzo kuva schematic. Purogiramu yega yega yakanaka pazvinhu zvakasiyana. Vamwe vanokubatsira kutsvaga mitsetse. Vamwe vanokutendera kuti uvake schematic kubva pasina. Hapana chishandiso chinozviita zvese, saka unogona kushandisa zvinopfuura chimwe.
Software | Key Features |
|---|---|
DipTrace | Inounza mafaera eDXF, inochengeta saizi, uye inoita kuti utore maseru ezvikamu zvepcb. |
Eagle | Inounza bitmap mifananidzo yekutsvaga uye kupatsanura zvidimbu neruvara. |
Circad | Iine reverse engineering maturusi, mitsara mifananidzo, uye inobvisa mufananidzo data mushure mekugadzirisa kwaitwa. |
Sprint-Layout 6.0 | Inoshandura mafoto kuita pcb marongero asi haigone kugadzira mambure ezvirongwa. |
Adobe Illustrator | Inoshandura mifananidzo kuita mavheji uye inotumira kuDXF, yakanaka kune silkscreen uye yakatsvinda mifananidzo. |
pstoedit/pdf2cad | Inoshandura mafaera ePDF kana AI kuita DXF/DWG yezvirongwa zvePCB, kuchengetedza mitsetse yakapinza. |
Iwe unozowanzo shandisa zvinopfuura chirongwa chimwe kuti uwane mhedzisiro yakanaka. Semuenzaniso, unogona kugadzirisa pcb mufananidzo muAdobe Illustrator. Ipapo unogona kuunza muDipTrace kana Gondo kuti uteedzere. Kuzviita nhanho nhanho kunokubatsira kuti uite schematic inofanana neiyo chaiyo pcb.
PCB Mufananidzo Capture
Mufananidzo uye Scan Mazano
Unoda wako pcb mifananidzo kuva akajeka chaizvo. Isa pcb pane yakasviba kumashure. Izvi zvinoita kuti zvikamu zvive nyore kuona. Shandisa yakakwirira-resolution kamera kana scanner kune zvakanakisa mhedzisiro. Vanhu vazhinji vanoshandisa makamera ane akawanda megapixels. Aya makamera anogona kuratidza zvikamu zvidiki uye mitsetse mitete. Kuvhenekera kwakanaka kwakangokosha sekamera yakanaka. Edza kushandisa marambi e LED mumavara akaita sematsvuku kana machena. Izvi zvinobatsira kuparadzira chiedza zvakaenzana. Mimvuri inogona kuvanza zvinhu zvidiki, saka fambisa mwenje wako uchitenderedza. Ramba uchivafambisa kusvikira waona chikamu chese pcb.
Zano: Chenesa pcb yako usati watora mufananidzo. Guruva kana mafingerprints anogona kuvanza zvakakosha.
Bata kamera yakatsiga paunotora mufananidzo. Tripod inogona kubatsira kumisa mapikicha asina kujeka. Ita shuwa kuti lens iri pedyo zvakakwana kuti uone zvikamu zvidiki. Asi usaswedera pedyo zvekuti mufananidzo wacho haunzwisisike. Kana iwe ukashandisa scanner, isa kune yepamusoro resolution. Izvi zvinokupa mifananidzo yakapinza yekutevera mushure. Kune mabhodhi akaomarara, unogona kushandisa Automated Optical Inspection masisitimu. Aya anoshandisa akakosha makamera nemwenje kuratidza zvese zvese.
Kubata Mabhodhi Maviri-Maviri
Kaviri-mativi pcbs vanoda mamwe matanho. Iwe unofanirwa kubata mativi ese pasina kupotsa. Kutanga, tarisa kana tora mufananidzo wepamusoro uye wepasi. Shandisa zvigadziriso zvepamusoro-soro pamufananidzo wega wega. Vamwe vanhu vanopenda maburi nema solder pads kuti aonekere. Iwe unogona zvakare kushandura chiteshi chemavara kana kugadzirisa saturation. Izvi zvinokubatsira kuona maronda nemakomba zviri nani.
Maka maburi asingabatanidzi kune chero layer.
Bvisa trackpads usati washandura mifananidzo kuita mavheji.
Ita mifananidzo nhema uye chena ine mitsetse yakasviba pamuchena.
Enzanisa mipendero yezvitsvakiridzo zvezvinyorwa zvakatsvinda.
Nokuti migumisiro yakanakisisa, shandisa pcb kukopa Software. Hunza mune yega yega pcb mufananidzo uye tsvaga mapedhi, vias, uye mateki ega rega rega. Sevha yega yega sedhijitari faira. Isa mafaira pamusoro peumwe neumwe kuti uone kana iwo mutserendende. Kana ukashanda ne-multilayer pcbs, jecha zvidimbu zvekunze zvinyoro. Izvi zvinokutendera kuti uone machira emukati. Skena uye tsvaga imwe neimwe layer zvakanyatsonaka. Nguva dzose tarisa mifananidzo yako yakajeka usati waenda kune rinotevera danho.
Kugadziriswa Kwemifananidzo
Kuchenesa uye Kugadzirisa
Iwe unotanga mufananidzo kugadzirisa danho nekuita yako pcb mifananidzo zvakajeka sezvinobvira. Mifananidzo yakachena inokubatsira kuona chikamu chega chega chegadziriro. Shandisa chishandiso chekugadzirisa mufananidzo kubvisa huruva, zvikweshwa, kana mamaki. Gadzirisa kupenya uye kusiyanisa kuitira kuti zviratidzo zvioneke kubva kumashure. Dhonza mufananidzo kuti utarise pane pcb uye bvisa chero chinhu chekuwedzera. Tenderedza mufananidzo kuitira kuti marongerwo aenderane nemucheto wechidzitiro chako. Izvi zvinoita kuti zvive nyore kutevedzera imwe neimwe nzira panguva inotevera.
Iwe unofanirwa kuenzanisa mifananidzo yepamusoro uye yepasi kana ukashanda nemapuranga ane mativi maviri. Isa mifananidzo yese iri mune yako editing software. Shandisa maburi nemapedhi sezvicherechedzo. Fambisa uye tenderera mifananidzo kusvika marongerwo anoenderana nemativi ese. Danho iri rinokubatsira kuona kuti maronda anobatana sei kuburikidza ne pcb. Kana iwe ukasvetuka maitiro aya, unogona kupotsa zvakakosha zvinongedzo muhurongwa.
Zano: Sevha mifananidzo yako yakacheneswa uye yakamisikidzwa semafaira matsva. Nenzira iyi, unogona kugara uchidzokera kana ukakanganisa.
Trace Detection
Iye zvino iwe unoenda kune iyo trace yekuona maitiro. Iyi nhanho inoita kuti iwe uwane uye uteedzere trace yega yega mu pcb dhizaini. Vamwe vanhu vanotsvaga nemaoko, asi unogona kushandisa software kukurumidza kuita. Mapurogiramu mazhinji anoshandisa algorithms akakosha kuti awane zvitekidzwa mumifananidzo yakakwira-resolution. Mask R-CNN inomira pachena seyakanyanya kurongeka pabasa iri. Iyo inocherekedza kuteedzera uye kukanganisa muchimiro zviri nani pane mamwe maturusi seYOLOv8. Mask R-CNN inoshanda nemazvo nekuti inowana maficha ane maumbirwo akaomarara uye inobata zvinovhiringa kumashure. Izvi zvinoita kuti sarudzo yepamusoro yeindasitiri pcb marongerwo basa.
Iwe unogona kushandisa otomatiki kutsvaga kutsvaga kugadzira netlist. Iyo netlist inoratidza kuti chikamu chimwe nechimwe chinobatana sei muhurongwa. Nguva dzose tarisa mhinduro nemaoko. Dzimwe nguva maitiro anopotsa madiki madiki kana kukanganisa. Kunyatsoongorora kunokubatsira gadzira chirongwa chechokwadi kubva pcb yako marongerwo.
Tracing Connections
Kuziva Mapedhi uye Mateshi
Iwe unofanirwa kuwana yega padhi uye kuteedzera pane yako pcb mufananidzo. Izvi zvinokubatsira kudzidza kuti bhodhi rinogadzirwa sei. Chekutanga, ita yekuona-kuburikidza layer mune yako mufananidzo software. Shandisa bhurasho rinoenderana nesaizi yepadhi kuti upende pedhi yega yega solder. Izvi zvinoita kuti mapedhi ave nyore kuona. Iwe unogona zvakare kudzima girinhi nebhuruu mavara mumufananidzo wako. Izvi zvinokubatsira kuona mapedhi chete. Vamwe vanhu vanoshandisa nzira dzakakosha seHSV uye kusanganisa kuita kuti mapadhi abude pachena.
Edza kushandisa maturusi ekusarudza kubata mapedhi uye woaisa pamatanho matsva. Mabhurashi echivanhu, semadenderedzwa kana michinjikwa, anokubatsira kumaka makomba epasi uye maburi emahara. Shandisa mabhurashi aya kuratidza maburi padhizaini. Sevha imwe neimwe yakamaka layer iri yega. Izvi zvinoita kuti zvive nyore kutarisa basa rako gare gare.
Ita matanho aya kumativi ose ePCB. Penda maburi uye solder pads nekuchinja mufananidzo mavara. Bvisa trackpads usati washandura mifananidzo kuita mavector. Maka maburi emahara kuti uwane asina kubatana kana mukati mekubatanidza. Shandura mavara uye mitsara kuti mapedhi abude pachena. Chenesa uye utsvedze makwara kuitira kuti hurongwa hwako huve hwakarurama. Ita mifananidzo nhema uye chena uye flip mavara kuti uone zviri nani. Ita kugadzirisa uku kwese mativi ePCB kuti uwane yakazara marongero.
Zano: Kunyatsogadzirisa ikozvino kunoita kuti matanho anotevera ave nyore uye kunobatsira kuti usaite zvikanganiso muhurongwa hwako.
Netlist Extraction
Mushure mekunge mawana ese mapedhi uye anoteedzera, unotanga netlist kudhirowa. Iyo netlist rondedzero inoratidza kuti chikamu chimwe nechimwe chinobatana sei paPCB. Unogona kushandisa software kuita nhanho iyi kwauri. Mamwe maturusi epamusoro anoshandisa 3D scans ine X-ray CT mifananidzo. Zvishandiso izvi zvakaratidza mhedzisiro yakakwana mukufananidza netlist nezvinotarisirwa kubva kune chaiyo pcb magadzirirwo. Izvi zvinoreva kuti iwe unogona kuvimba nemhedzisiro yezvimiro zviri nyore uye zvakaoma.
Iwe uchiri kuda kutarisa netlist neruoko. Tarisa zvisipo kana mamwe malink. Enzanisa iyo netlist neyako chaiyo pcb marongero uye dhizaini. Izvi zvinokubatsira kuti uwane zvikanganiso usati waita hurongwa. Yakanaka netlist inoita kuti danho rehurongwa rive nyore. Iye zvino unogona kushandisa netlist kuti ikubatsire kupedzisa yako reverse engineering purojekiti nechivimbo.
Gadzira Schematics
Schematic Building
Iye zvino wava netlist uye mepu yePCB yako. Chinhu chinotevera kuita kugadzira schematics nemidziyo yeEDA. Zvishandiso izvi zvinokubatsira kushandura mitsetse yako yakatevedzwa kuita dhijitari schematic. KiCad uye SKiDL maturusi maviri akanaka eizvi.
SKiDL inoita kuti ushandise Python kodhi kuratidza kuti zvikamu zvinobatana sei. Iwe unonyora kodhi uye woimhanyisa kugadzira netlist. Iyi netlist inogona kushandiswa muKiCad. Semuenzaniso, unogona kushandisa SKiDL kugadzira voltage divider. Wobva watumira kunze netlist uye woivhura muKiCad. Iyi nzira inokupa kutonga kwakawanda uye inokubatsira kuita mamwe matanho nekukurumidza.
KiCad inoita kuti iwe uvake schematic yako nekuiona pachiratidziri. Heano matanho ekugadzira schematics kubva kune yako netlist:
Tora KiCad kubva kune yepamutemo webhusaiti uye uiise.
Vhura KiCad uye tanga chirongwa chitsva kana tora chekare.
Shandisa schematic editor kuisa nekubatanidza zvikamu.
Shandisa footprint editor kuti upe chikamu chimwe nechimwe chetsoka.
Dzvanya iyo netlist icon kugadzira uye kuchengetedza iyo netlist.
Vhura PCBNew, inova dhizaini, uye rodha iyo netlist.
Gadziridza pcb marongerwo netlist uye gadzirisa chero kukanganisa kwetsoka.
Isa zvikamu munzvimbo yekufambisa uye uzvironge kuti zvive nyore kutsvaga.
Dhirowa mapendero ebhodhi uye nzira dzekutsvaga pazvikamu zvemhangura.
Wedzera zvizadziro zvemhangura zvesimba nemambure evhu, wozovaratidza.
Sevha yako pcb marongerwo kuti inogona kuitwa.
Zano: Dzvanya 'M' kufambisa zvikamu uye 'R' kuti zvishandure muKiCad. Makiyi aya anokubatsira kuti ushande nekukurumidza.
Unogona kushandisa ese ruoko uye otomatiki nzira pamwechete. Semuenzaniso, unogona kudhirowa mitsetse neruoko. Wobva washandisa otomatiki-nzira maturusi kupedzisa zvimwe. Izvi zvinochengetedza nguva uye zvinokubatsira kuita zvikanganiso zvishoma. Chati iri pazasi inoratidza kuti inguva yakadii yaunochengeta nemidziyo otomatiki padanho rega rega:
Macheki emaoko achiri kukosha. Inenge 30% ye otomatiki yekubatanidza inoda kuti iwe uzvitarise nemaoko. Izvi zvinoita kuti hurongwa hwako huenderane neiyo chaiyo pcb.
Cherechedza: Manotsi akanaka padanho rino anobatsira iwe nevamwe kunzwisisa dhizaini. Gara uchinyora manotsi paunenge uchigadzira hurongwa hwako.
Verification Matanho
Mushure mekugadzira schematics, unofanirwa kutarisa zvese. Danho iri rinokubatsira kuwana zvikanganiso usati waita pcb. Tanga nekutarisa nhamba dzepini dzechikamu uye zvinyorwa zvine madatabase. Tarisa kaviri kutungamira kwezvikamu zvese zvepolarized. Tsvaga mavara anovhara mapini akakosha.
Iwe unofanirwa zvakare:
Ita shuwa kuti transistor pini (base, muunganidzi, emitter) anoenderana nedhetabheti.
Tarisa zvese zvikamu zvakakosha uye mazita ereferenzi.
Ita shuwa kuti chikamu chese chechirongwa chine manotsi akazara, senge nhamba dzechikamu uye ruzivo rwemupi.
Tarisa kunze-peji zvinongedzo kuti uone kuti hapana chisipo.
Tarisa decoupling capacitors yemachipi uye kupatsanura pasi pini nemhando yechiratidzo.
Mhanya Magetsi Rule Cheki (ERC) uye Dhizaini Rule Macheki (DRC) mune yako EDA chishandiso. Aya macheki anokubatsira kuwana zvikanganiso zvemagetsi uye matambudziko ekugadzira. Zvishandiso zvakawanda zveEDA, seAltium Designer, OrCAD, uye PADS, zvine maficha akasimba ekutarisa. Vanokutendera kuti uedze hurongwa hwako, tsvaga mambure asipo, uye uverenge mishumo yekukanganisa.
Hedzino dzimwe nzira dzakanakisa dzekuenzanisa yako schematic kune chaiyo pcb:
Tarisa schematic uye enzanisa pamwe datasheets uye dhizaini mitemo.
Mhanyai DRC pamusoro pcb marongerwo kuwana uye kugadzirisa zvikanganiso.
Isa zvikamu zvine chiratidzo chekuyerera uye zvinodikanwa zvekupisa mupfungwa.
Shandisa simulation maturusi kuedza redunhu asati kuvaka pcb.
Edza uye gadzirisa dhizaini kuti uwane chero matambudziko.
Shandura yako schematic uye pcb marongero zvichienderana nemhedzisiro yebvunzo.
Tarisa kunaka kwechiratidzo nekuita kuti trace routing zvive nani.
Tarisa pcb marongerwo uye schematic kuti ive nechokwadi kuti anowirirana.
Ita uye tarisa mafaira ekuita kuti pcb ave nechokwadi kuti inofananidzwa nehurongwa hwako.
Zano: Shandisa maturusi akaita digitaalinen multimeter, oscilloscope, uye magnifying girazi kutarisa pcb wako uye schematic. Zvishandiso izvi zvinokubatsira kuwana maseketi akavhurika, zvikabudura, kana zvikamu zvisina mutsara.
Kukanganisa kwakajairika mazita emambure asingaenderane, mapinoti asiri iwo, uye anoshaikwa malink. Gara uchitarisa Bhiri rako reZvinhu (BOM) kuti uve nechokwadi kuti rakarurama. Kana iwe ukawana zvikanganiso, shandisa yako EDA chishandiso chekuyedza uye mhosho-yekutsvaga maficha kuti uzvigadzirise. Nyora pasi shanduko yese uye mhinduro yebvunzo. Manotsi akanaka anoita kuti zvive nyore kugadzirisa matambudziko uye kubatsira vamwe kunzwisisa basa rako.
Callout: Nyora manotsi padanho rega rega. Iyi tsika inochengetedza nguva uye inomisa kuvhiringidzika kana iwe kana mumwe munhu akatarisa hurongwa gare gare.
Iwe unogona kugadzira schematic kubva paPCB mufananidzo nekutora mifananidzo yakajeka, kugadzirisa uye kuimisa kumusoro, kutsvaga zvese zvinongedzo, uyezve kugadzira yako schematic. Tarisa basa rako padanho rega rega kuti usarasikirwe zvikamu kana mavara. Kushandisa ese ari maviri ekutsvaga nemaoko uye maturusi emakombuta kunokubatsira kuti ushande nekukurumidza uye kugadzirisa zvinhu.
Tarisa nzira dzakajeka dzechiratidzo uye nyora manotsi akanaka.
Edza hurongwa hwako zvakanyanya kuti uwane zvikanganiso nekukurumidza.
Dzidza mamwe magadzirirwo uye nguva dzose uchitevera mitemo.
Resource Type | tsananguro |
|---|---|
Community Forums | Taura nevamwe kugovera mazano uye kubvunza mibvunzo |
Video Tutorials | Tarisa madhairekitori akareruka kuti udzidze PCB reverse engineering |
Kudzidzira Kosi | Tora zvidzidzo kuti uve nani pahunyanzvi uhu |
Ramba uchiedza uye shandisa zvishandiso zvitsva. Yese purojekiti inokudzidzisa zvakawanda uye inokubatsira kugadzirisa matambudziko matsva.
FAQ
Chii chaunofanira kuita kana mufananidzo wako wePCB usina kujeka?
Iwe unofanirwa kutora zvakare foto uchishandisa zvirinani mwenje uye katatu. Chenesa PCB kutanga. Shandisa sarudzo yepamusoro pane kamera yako kana scanner. Mifananidzo yakajeka inokubatsira kuona zvidiki uye kudzivirira kukanganisa.
Unogona here kudzosera mainjiniya a multilayer PCB?
Hongu unokwanisa. Unoda maturusi akakosha senge X-ray muchina kana 3D scanner kuti uone mukati mebhodhi. Iwe unofanirwa kuongorora yega yega yega uye kuteedzera kubatana imwe neimwe. Iyi nzira inotora nguva yakawanda uye kutarisirwa.
Ndeipi software inoshanda zvakanyanya kune vanotanga?
KiCad inoshanda zvakanaka kune vanotanga. Iyo ine yakapusa interface uye akawanda tutorials online. Iwe unogona zvakare kuedza DipTrace kana Eagle. Aya mapurogiramu anokubatsira iwe kuvaka schematics nhanho nhanho.
Unotarisa sei kana yako schematic ichienderana nePCB chaiyo?
Shandisa multimeter kuyedza kubatana paPCB. Enzanisa schematic yako neiyo chaiyo bhodhi uye madheti. Mhanya dhizaini cheki mune yako EDA chishandiso. Gadzirisa chero kukanganisa kwaunowana usati wagadzira PCB.
Ndezvipi kukanganisa kwaunofanira kungwarira?
Kusina kubatana pakati pezvikamu
Pini nhamba kana mavara asina kunaka
Zvikamu zvakaiswa munzira isiri iyo
Mazita emambure asingaenderane
Gara uchitarisa kaviri basa rako uye nyora manotsi padanho rega rega.
