{"id":570,"date":"2026-07-31T13:49:22","date_gmt":"2026-07-31T16:49:22","guid":{"rendered":"https:\/\/carloslopes.programandosolucoes.com.br\/index.php\/portfolio-pedagio\/"},"modified":"2026-08-05T17:05:18","modified_gmt":"2026-08-05T20:05:18","slug":"portfolio-pedagio","status":"publish","type":"page","link":"https:\/\/carloslopes.programandosolucoes.com.br\/index.php\/portfolio-pedagio\/","title":{"rendered":"Arquiteto de Software (Hands-On) &#8211; Retaguarda de Ped\u00e1gio Eletr\u00f4nico"},"content":{"rendered":"<style>\n.pf-wrap{max-width:1100px;margin:0 auto;font-size:16px;line-height:1.65}\n.pf-chamada{font-size:1.15rem;opacity:.85;margin:0 0 2rem}\n.pf-grade{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.5rem}\n.pf-card{border:1px solid rgba(128,128,128,.3);border-radius:10px;overflow:hidden;display:flex;flex-direction:column;transition:transform .15s ease,box-shadow .15s ease}\n.pf-card:hover{transform:translateY(-3px);box-shadow:0 8px 24px rgba(0,0,0,.12)}\n.pf-card img{width:100%;height:180px;object-fit:cover;display:block;background:rgba(128,128,128,.12)}\n.pf-card-corpo{padding:1rem 1.1rem 1.2rem;display:flex;flex-direction:column;gap:.6rem;flex:1}\n.pf-card h3{margin:0;font-size:1.05rem;line-height:1.35}\n.pf-card p{margin:0;font-size:.92rem;opacity:.85;flex:1}\n.pf-chips{display:flex;flex-wrap:wrap;gap:.35rem}\n.pf-chip{font-size:.75rem;padding:.18rem .55rem;border-radius:999px;border:1px solid rgba(128,128,128,.35);opacity:.9}\n.pf-meta{font-size:.8rem;opacity:.7}\n.pf-cadeado{font-size:.8rem;opacity:.75}\n.pf-hero{margin:0 0 1.5rem}\n.pf-hero h1{margin:0 0 .4rem;line-height:1.2}\n.pf-secao{margin:2rem 0}\n.pf-secao h2{font-size:1.15rem;margin:0 0 .6rem;text-transform:uppercase;letter-spacing:.06em;opacity:.75}\n.pf-galeria{display:grid;gap:1.2rem;margin:2rem 0}\n.pf-galeria figure{margin:0}\n.pf-galeria img{width:100%;border:1px solid rgba(128,128,128,.3);border-radius:8px;display:block}\n.pf-galeria figcaption{font-size:.85rem;opacity:.75;margin-top:.4rem}\n.pf-repo{border:1px solid rgba(128,128,128,.35);border-left-width:4px;border-radius:8px;padding:1rem 1.2rem;margin:2rem 0}\n.pf-repo h2{margin:0 0 .5rem;font-size:1rem;text-transform:uppercase;letter-spacing:.06em}\n.pf-repo pre{background:rgba(128,128,128,.12);padding:.7rem .9rem;border-radius:6px;overflow-x:auto;margin:.6rem 0;font-size:.85rem}\n.pf-contato{margin:2rem 0;padding-top:1.2rem;border-top:1px solid rgba(128,128,128,.3);font-size:.95rem}\n.pf-voltar{display:inline-block;margin-bottom:1rem;font-size:.9rem}\n@media (max-width:600px){.pf-card img{height:150px}}\n<\/style>\n<div class=\"pf-wrap\">\n  <a class=\"pf-voltar\" href=\"\/index.php\/portfolio-backend\/\">\u2190 voltar ao portf\u00f3lio<\/a><\/p>\n<header class=\"pf-hero\">\n<p class=\"pf-meta\">12\/2025 &#8211; 01\/2026 \u00b7 2 meses<\/p>\n<p>Retaguarda de ped\u00e1gio eletr\u00f4nico free-flow: l\u00ea o transponder do ve\u00edculo, decifra o payload e entrega para a concession\u00e1ria em tr\u00eas formatos diferentes.<\/p>\n<div class=\"pf-chips\"><span class=\"pf-chip\">Python<\/span><span class=\"pf-chip\">FastAPI<\/span><span class=\"pf-chip\">uvicorn<\/span><span class=\"pf-chip\">cryptography<\/span><span class=\"pf-chip\">Protobuf<\/span><span class=\"pf-chip\">SOAP\/XML<\/span><span class=\"pf-chip\">JMS\/STOMP<\/span><span class=\"pf-chip\">ActiveMQ<\/span><span class=\"pf-chip\">RSA-2048<\/span><span class=\"pf-chip\">PyInstaller<\/span><span class=\"pf-chip\">pytest<\/span><span class=\"pf-chip\">Locust<\/span><span class=\"pf-chip\">mypy<\/span><\/div>\n<\/header>\n<section class=\"pf-secao\">\n<h2>O problema<\/h2>\n<p>A concession\u00e1ria recebe leituras de antenas RFID na pista e precisa transform\u00e1-las em passagens v\u00e1lidas, com criptografia conforme norma e no formato que o sistema legado dela aceita \u2014 que n\u00e3o \u00e9 o mesmo em toda integra\u00e7\u00e3o. E tudo isso sob regulamenta\u00e7\u00e3o: a Resolu\u00e7\u00e3o ARTESP 001\/2014 define at\u00e9 o formato de serializa\u00e7\u00e3o.<\/p>\n<\/section>\n<section class=\"pf-secao\">\n<h2>A arquitetura<\/h2>\n<p>API ass\u00edncrona em FastAPI com uvicorn. O parser do protocolo da antena CIR decomp\u00f5e a stringtag no formato [OBUID]_[PayloadHex] em identificador do transponder e payload cifrado; a decripta\u00e7\u00e3o AES suporta dez combina\u00e7\u00f5es (AES-128 e AES-256 nos modos CBC, ECB, CFB, OFB e CTR), com o modo escolhido por configura\u00e7\u00e3o. O mesmo dado sai por tr\u00eas serializadores selecion\u00e1veis \u2014 Protobuf, JSON e SOAP\/XML \u2014 porque em integra\u00e7\u00e3o com sistema legado quem dita o formato \u00e9 o outro lado. A publica\u00e7\u00e3o \u00e9 em fila JMS\/STOMP no broker ActiveMQ da concession\u00e1ria. O sistema tem licenciamento pr\u00f3prio: assinatura RSA-2048, hash de hardware como identificador de m\u00e1quina e tr\u00eas n\u00edveis de licen\u00e7a, sem a qual n\u00e3o opera. Distribui\u00e7\u00e3o em bin\u00e1rio \u00fanico por PyInstaller, com instaladores para Rocky Linux, Ubuntu e Windows.<\/p>\n<\/section>\n<section class=\"pf-secao\">\n<h2>O resultado<\/h2>\n<p>Sistema entregue no papel de arquiteto de software hands-on para a AstraMobi, implementando as normas ISO\/IEC 18000-63, ISO\/IEC 29167-10 e a Resolu\u00e7\u00e3o ARTESP 001\/2014. Nove documentos de li\u00e7\u00f5es aprendidas foram escritos durante o desenvolvimento, e o projeto \u00e9 o \u00fanico do portf\u00f3lio com teste de carga em Locust e checagem est\u00e1tica de tipos com mypy.<\/p>\n<\/section>\n<div class=\"pf-galeria\">\n<figure>\n      <img decoding=\"async\" src=\"https:\/\/carloslopes.programandosolucoes.com.br\/wp-content\/uploads\/portfolio\/pedagio-01-api.png\" alt=\"API de processamento de leitura, documentada em OpenAPI\" loading=\"lazy\"><figcaption>API de processamento de leitura, documentada em OpenAPI<\/figcaption><\/figure>\n<figure>\n      <img decoding=\"async\" src=\"https:\/\/carloslopes.programandosolucoes.com.br\/wp-content\/uploads\/portfolio\/pedagio-02-arquitetura.png\" alt=\"Do transponder na pista \u00e0 fila da concession\u00e1ria\" loading=\"lazy\"><figcaption>Do transponder na pista \u00e0 fila da concession\u00e1ria<\/figcaption><\/figure>\n<\/p><\/div>\n<div class=\"pf-repo\">\n<h2>\ud83d\udd12 C\u00f3digo-fonte<\/h2>\n<pre><code>git clone https:\/\/git.programandosolucoes.com.br\/git\/repos\/slt.git<\/code><\/pre>\n<p>C\u00f3digo-fonte privado. As credenciais de leitura s\u00e3o liberadas sob solicita\u00e7\u00e3o \u2014 me chame para conversar sobre o projeto.<\/p>\n<\/p><\/div>\n<div class=\"pf-contato\">\n    <strong>Carlos Alberto<\/strong> \u2014 carlosalberto4ti@gmail.com \u00b7 +55 11 2615-2880\n  <\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u2190 voltar ao portf\u00f3lio 12\/2025 &#8211; 01\/2026 \u00b7 2 meses Retaguarda de ped\u00e1gio eletr\u00f4nico free-flow: l\u00ea o transponder do ve\u00edculo, decifra o payload e entrega para a concession\u00e1ria em tr\u00eas formatos diferentes. PythonFastAPIuvicorncryptographyProtobufSOAP\/XMLJMS\/STOMPActiveMQRSA-2048PyInstallerpytestLocustmypy O problema A concession\u00e1ria recebe leituras de antenas RFID na pista e precisa transform\u00e1-las em passagens v\u00e1lidas, com criptografia conforme norma e [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-570","page","type-page","status-publish","hentry"],"translation":{"provider":"WPGlobus","version":"3.0.2","language":"en","enabled_languages":["en","br","it"],"languages":{"en":{"title":true,"content":true,"excerpt":false},"br":{"title":false,"content":false,"excerpt":false},"it":{"title":false,"content":false,"excerpt":false}}},"_links":{"self":[{"href":"https:\/\/carloslopes.programandosolucoes.com.br\/index.php\/wp-json\/wp\/v2\/pages\/570","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/carloslopes.programandosolucoes.com.br\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/carloslopes.programandosolucoes.com.br\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/carloslopes.programandosolucoes.com.br\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/carloslopes.programandosolucoes.com.br\/index.php\/wp-json\/wp\/v2\/comments?post=570"}],"version-history":[{"count":1,"href":"https:\/\/carloslopes.programandosolucoes.com.br\/index.php\/wp-json\/wp\/v2\/pages\/570\/revisions"}],"predecessor-version":[{"id":584,"href":"https:\/\/carloslopes.programandosolucoes.com.br\/index.php\/wp-json\/wp\/v2\/pages\/570\/revisions\/584"}],"wp:attachment":[{"href":"https:\/\/carloslopes.programandosolucoes.com.br\/index.php\/wp-json\/wp\/v2\/media?parent=570"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}