{"id":5077,"date":"2023-09-01T12:23:06","date_gmt":"2023-09-01T12:23:06","guid":{"rendered":"https:\/\/picockpit.com\/raspberry-pi\/?p=5077"},"modified":"2023-09-05T11:50:29","modified_gmt":"2023-09-05T11:50:29","slug":"everything-about-the-google-coral-usb-accelerator","status":"publish","type":"post","link":"https:\/\/picockpit.com\/raspberry-pi\/pt\/tudo-sobre-o-acelerador-usb-coral-da-google\/","title":{"rendered":"Tudo sobre o Acelerador USB Google Coral"},"content":{"rendered":"<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/08\/coral-accelerator-1024x576.png\" alt=\"Imagem de t\u00edtulo do acelerador USB Google Coral\" class=\"wp-image-5082\" srcset=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/08\/coral-accelerator-1024x576.png 1024w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/08\/coral-accelerator-300x169.png 300w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/08\/coral-accelerator-768x432.png 768w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/08\/coral-accelerator-18x10.png 18w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/08\/coral-accelerator.png 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Num dos nossos v\u00eddeos do YouTube sobre intelig\u00eancia artificial, um comentador escreveu que n\u00e3o estava muito interessado numa caixa misteriosa de IA. Isso inspirou-me a escrever um artigo para desvendar o mist\u00e9rio. Por isso, aqui est\u00e1 tudo o que precisa de saber sobre <a href=\"https:\/\/buyzero.de\/collections\/google-aiy-coral\/products\/google-coral-usb-accelerator\">o acelerador USB Google Coral<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">O acelerador Coral USB foi concebido principalmente para aplica\u00e7\u00f5es de IA de baixo consumo e de ponta. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u00c9 adequado para tarefas como an\u00e1lise de imagem e v\u00eddeo, dete\u00e7\u00e3o de objectos e reconhecimento de voz em dispositivos como o Raspberry Pi ou computadores port\u00e1teis.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Vis\u00e3o geral<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Em suma, o Google Coral USB Accelerator \u00e9 um processador que utiliza uma Unidade de Processamento Tensorial (TPU), que \u00e9 um circuito integrado que \u00e9 realmente bom a fazer multiplica\u00e7\u00e3o e adi\u00e7\u00e3o de matrizes. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A multiplica\u00e7\u00e3o de matrizes \u00e9 o material necess\u00e1rio para construir redes neuronais. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">E, definitivamente, n\u00e3o ir\u00e1 muito longe se tentar construir redes neuronais apenas com o seu Raspberry Pi.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Como tal, o acelerador adiciona outro processador que \u00e9 dedicado especificamente a fazer a \u00e1lgebra linear necess\u00e1ria para a aprendizagem autom\u00e1tica.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Como provavelmente sabe, a ideia subjacente \u00e0 aprendizagem autom\u00e1tica consiste em desenvolver modelos que analisam e aprendem padr\u00f5es a partir de um conjunto de dados. Este conjunto de dados tem v\u00e1rios inputs e outputs correspondentes. Depois de treinados, estes modelos podem receber novos dados, sintetizar os padr\u00f5es aprendidos e gerar resultados ou previs\u00f5es adequadas.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/08\/coral-usb-accelerator-768x1024.png\" alt=\"Acelerador USB Google Coral\" class=\"wp-image-5087\" style=\"width:438px;height:584px\" width=\"438\" height=\"584\" srcset=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/08\/coral-usb-accelerator-768x1024.png 768w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/08\/coral-usb-accelerator-225x300.png 225w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/08\/coral-usb-accelerator-9x12.png 9w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/08\/coral-usb-accelerator.png 960w\" sizes=\"auto, (max-width: 438px) 100vw, 438px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">As TPUs funcionam muito mais rapidamente e com muito menos energia do que as CPUs para a aprendizagem autom\u00e1tica, porque n\u00e3o executam outros programas e n\u00e3o precisam de aceder \u00e0 mem\u00f3ria partilhada.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A TPU no Acelerador Coral USB utiliza o TensorFlow Lite, que \u00e9 uma vers\u00e3o modificada para dispositivos mais pequenos.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Utilizar o acelerador USB Coral<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">O que \u00e9 especialmente fant\u00e1stico \u00e9 o facto de tornar acess\u00edvel o desenvolvimento da IA. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Come\u00e7ar \u00e9 muito f\u00e1cil. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Na verdade, tudo o que precisas \u00e9 de um Google Coral USB Accelerator (obviamente) e um computador com uma porta USB livre e Python 3.5 ou superior.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">E vale a pena mencionar que funciona com Mac, Windows e Linux (especificamente, sistemas operativos baseados em Debian, como o Ubuntu ou o Raspberry Pi OS). Por isso, de certeza que vai conseguir p\u00f4-lo a funcionar.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Quando o configurar, tem de decidir se quer que funcione com a frequ\u00eancia de rel\u00f3gio m\u00e1xima ou com a frequ\u00eancia de rel\u00f3gio reduzida. Obviamente, a frequ\u00eancia de rel\u00f3gio m\u00e1xima \u00e9 mais potente, mas tamb\u00e9m vai consumir mais energia. E pode ficar incrivelmente quente.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/09\/googlecoralback-1024x768.jpg\" alt=\"A parte de tr\u00e1s do Google Coral\" class=\"wp-image-5095\" style=\"width:532px;height:399px\" width=\"532\" height=\"399\" srcset=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/09\/googlecoralback-1024x768.jpg 1024w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/09\/googlecoralback-300x225.jpg 300w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/09\/googlecoralback-768x576.jpg 768w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/09\/googlecoralback-16x12.jpg 16w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/09\/googlecoralback.jpg 1280w\" sizes=\"auto, (max-width: 532px) 100vw, 532px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Executar um modelo de reconhecimento de imagem<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">No <a href=\"https:\/\/coral.ai\/docs\/accelerator\/get-started\/#1-install-the-edge-tpu-runtime\">S\u00edtio Web do Google Coral<\/a>No site da Coral, eles oferecem um teste maravilhoso para mostrar como o acelerador Coral USB funciona. No seu exemplo, \u00e9 capaz de reconhecer diferentes aves com uma precis\u00e3o not\u00e1vel.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ent\u00e3o aqui est\u00e1 como executar o modelo de reconhecimento de imagem no seu Raspberry Pi. Isto funcionar\u00e1 perfeitamente bem com a frequ\u00eancia de rel\u00f3gio reduzida.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u00e3o carregue j\u00e1 no acelerador.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Em primeiro lugar, \u00e9 necess\u00e1rio ir ao terminal e digitar o seguinte c\u00f3digo para adicionar o reposit\u00f3rio Edge TPU:<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewbox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"echo &quot;deb https:\/\/packages.cloud.google.com\/apt coral-edgetpu-stable main&quot; | sudo tee \/etc\/apt\/sources.list.d\/coral-edgetpu.listcurl https:\/\/packages.cloud.google.com\/apt\/doc\/apt-key.gpg | sudo apt-key add -sudo apt-get update\" style=\"color:#d8dee9ff;display:none\" aria-label=\"C\u00f3pia\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewbox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code data-no-translation=\"\"><span class=\"line\"><span style=\"color: #D8DEE9\">echo<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">deb https:\/\/packages.cloud.google.com\/apt coral-edgetpu-stable main<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">|<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">sudo<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">tee<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9\">etc<\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9\">apt<\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9\">sources<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">list<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">d<\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9\">coral<\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9\">edgetpu<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">list<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">curl<\/span><span style=\"color: #D8DEE9FF\"> https<\/span><span style=\"color: #ECEFF4\">:<\/span><span style=\"color: #616E88\">\/\/packages.cloud.google.com\/apt\/doc\/apt-key.gpg | sudo apt-key add -<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">sudo<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">apt<\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9\">get<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">update<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Em seguida, instale o tempo de execu\u00e7\u00e3o:<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewbox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"sudo apt-get install libedgetpu1-std\" style=\"color:#d8dee9ff;display:none\" aria-label=\"C\u00f3pia\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewbox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code data-no-translation=\"\"><span class=\"line\"><span style=\"color: #D8DEE9\">sudo<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">apt<\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9\">get<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">install<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">libedgetpu1<\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9\">std<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Agora podes ligar o acelerador para que tudo esteja sincronizado. Depois de o ter ligado, precisa de instalar o PyCoral:<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewbox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"sudo apt-get install python3-pycoral\" style=\"color:#d8dee9ff;display:none\" aria-label=\"C\u00f3pia\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewbox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code data-no-translation=\"\"><span class=\"line\"><span style=\"color: #D8DEE9\">sudo<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">apt<\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9\">get<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">install<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">python3<\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9\">pycoral<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">E agora pode p\u00f4r o modelo a funcionar. Primeiro, descarrega-se o c\u00f3digo:<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewbox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"mkdir coral &amp;&amp; cd coralgit clone https:\/\/github.com\/google-coral\/pycoral.gitcd pycoral\" style=\"color:#d8dee9ff;display:none\" aria-label=\"C\u00f3pia\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewbox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code data-no-translation=\"\"><span class=\"line\"><span style=\"color: #D8DEE9\">mkdir<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">coral<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">&amp;&amp;<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">cd<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">coral<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">git<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">clone<\/span><span style=\"color: #D8DEE9FF\"> https<\/span><span style=\"color: #ECEFF4\">:<\/span><span style=\"color: #616E88\">\/\/github.com\/google-coral\/pycoral.git<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9\">cd<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">pycoral<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Em seguida, execute o seguinte:<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewbox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"bash examples\/install_requirements.sh classify_image.py\" style=\"color:#d8dee9ff;display:none\" aria-label=\"C\u00f3pia\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewbox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code data-no-translation=\"\"><span class=\"line\"><span style=\"color: #D8DEE9\">bash<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">examples<\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9\">install_requirements<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">sh<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">classify_image<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">py<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">E, finalmente, executa-se o modelo:<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewbox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"python3 examples\/classify_image.py \\--model test_data\/mobilenet_v2_1.0_224_inat_bird_quant_edgetpu.tflite \\--labels test_data\/inat_bird_labels.txt \\--input test_data\/parrot.jpg\" style=\"color:#d8dee9ff;display:none\" aria-label=\"C\u00f3pia\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewbox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code data-no-translation=\"\"><span class=\"line\"><span style=\"color: #D8DEE9\">python3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">examples<\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9\">classify_image<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">py<\/span><span style=\"color: #D8DEE9FF\"> \\<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">--<\/span><span style=\"color: #D8DEE9\">model<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">test_data<\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9\">mobilenet_v2_1<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9FF\">0<\/span><span style=\"color: #D8DEE9\">_224_inat_bird_quant_edgetpu<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">tflite<\/span><span style=\"color: #D8DEE9FF\"> \\<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">--<\/span><span style=\"color: #D8DEE9\">labels<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">test_data<\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9\">inat_bird_labels<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">txt<\/span><span style=\"color: #D8DEE9FF\"> \\<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">--<\/span><span style=\"color: #D8DEE9\">input<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">test_data<\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9\">parrot<\/span><span style=\"color: #ECEFF4\">.<\/span><span style=\"color: #D8DEE9\">jpg<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">O resultado \u00e9 mais ou menos assim:<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/09\/Parrot-Output-1024x693.png\" alt=\"Sa\u00edda do papagaio\" class=\"wp-image-5097\" style=\"width:603px;height:408px\" width=\"603\" height=\"408\" srcset=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/09\/Parrot-Output-1024x693.png 1024w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/09\/Parrot-Output-300x203.png 300w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/09\/Parrot-Output-768x520.png 768w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/09\/Parrot-Output-18x12.png 18w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/09\/Parrot-Output.png 1079w\" sizes=\"auto, (max-width: 603px) 100vw, 603px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Pode ver que a entrada era \"parrot.jpg\" e o modelo leu-a corretamente como uma arara-vermelha, com 0,75 de confian\u00e7a na precis\u00e3o.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Encontrei uma fotografia de um cardeal do Norte e analisei-a atrav\u00e9s do modelo e eis o resultado.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/09\/Northern-Cardinal-Output-1024x693.png\" alt=\"Sa\u00edda do cardeal do Norte\" class=\"wp-image-5098\" style=\"width:584px;height:395px\" width=\"584\" height=\"395\" srcset=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/09\/Northern-Cardinal-Output-1024x693.png 1024w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/09\/Northern-Cardinal-Output-300x203.png 300w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/09\/Northern-Cardinal-Output-768x520.png 768w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/09\/Northern-Cardinal-Output-18x12.png 18w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/09\/Northern-Cardinal-Output.png 1079w\" sizes=\"auto, (max-width: 584px) 100vw, 584px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Como pode ver, deu uma leitura super precisa com 0,91 de confian\u00e7a.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ent\u00e3o, quis ver o que aconteceria se lhe desse uma fotografia de um gato.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/09\/Cat-Output-1024x693.png\" alt=\"Sa\u00edda Cat\" class=\"wp-image-5099\" style=\"width:581px;height:393px\" width=\"581\" height=\"393\" srcset=\"https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/09\/Cat-Output-1024x693.png 1024w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/09\/Cat-Output-300x203.png 300w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/09\/Cat-Output-768x520.png 768w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/09\/Cat-Output-18x12.png 18w, https:\/\/picockpit.com\/raspberry-pi\/wp-content\/uploads\/2023\/09\/Cat-Output.png 1079w\" sizes=\"auto, (max-width: 581px) 100vw, 581px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Embora eu compreenda perfeitamente porque \u00e9 que ele pensou que o gato era uma coruja de chifres grandes, fiquei surpreendido com o seu n\u00edvel de confian\u00e7a.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tentei que reconhecesse fotografias de pessoas e determinasse de que aves se tratava, mas infelizmente n\u00e3o colaborou.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mas sinta-se \u00e0 vontade para experimentar e ver o que consegue tirar da\u00ed. Comente abaixo os resultados!<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Conclus\u00e3o<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Aqui est\u00e1. Embora o seu exterior ultra-elegante possa dar uma certa sensa\u00e7\u00e3o de misticismo, o Google Coral USB Accelerator n\u00e3o \u00e9 uma caixa misteriosa.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u00c9 um processador potente que pode levar a IA aos dispositivos perif\u00e9ricos.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Portanto, quer se dedique \u00e0 IoT, \u00e0 rob\u00f3tica ou tenha uma ideia para integrar a IA nos dispositivos do dia a dia, o acelerador Coral USB \u00e9 o seu bilhete de entrada. Embora eu tenha dado o exemplo de um modelo de reconhecimento de imagem, o acelerador pode ir muito mais longe - reconhecimento de v\u00eddeo, dete\u00e7\u00e3o de objectos, aprendizagem por transfer\u00eancia no dispositivo, etc.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tamb\u00e9m temos um AIY Maker Kit que torna tudo isto poss\u00edvel - veja este v\u00eddeo:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" hcb-fetch-image-from=\"https:\/\/www.youtube.com\/watch?v=obPd6Tf6lac\" title=\"AIY Maker Kit - Construa a sua pr\u00f3pria IA no Raspberry Pi 4\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/obPd6Tf6lac?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Se estiver interessado em IA, pode consultar a nossa <a href=\"https:\/\/picockpit.com\/raspberry-pi\/ai-an-introduction-to-artificial-intelligence\/\">Introdu\u00e7\u00e3o \u00e0 Intelig\u00eancia Artificial<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">E se estiver interessado em criar alguns projectos de IA, pode consultar alguns projectos que utilizam a IA em <a href=\"https:\/\/picockpit.com\/raspberry-pi\/category\/paragon-projects\/\">a nossa s\u00e9rie de Projectos Paragon<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">O que est\u00e1 a planear fazer com o acelerador?<\/p>\n<div class=\"shariff shariff-align-center shariff-widget-align-left shariff-buttonstretch\"><ul class=\"shariff-buttons theme-white orientation-horizontal buttonsize-medium\"><li class=\"shariff-button twitter shariff-nocustomcolor\" style=\"background-color:#595959\"><a href=\"https:\/\/twitter.com\/share?url=https%3A%2F%2Fpicockpit.com%2Fraspberry-pi%2Fpt%2Ftudo-sobre-o-acelerador-usb-coral-da-google%2F&text=Everything%20about%20the%20Google%20Coral%20USB%20Accelerator\" title=\"Compartilhar no X\" aria-label=\"Compartilhar no X\" role=\"button\" rel=\"noopener nofollow\" class=\"shariff-link\" style=\"; 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Isso inspirou-me a escrever um artigo para desvendar o mist\u00e9rio. Por isso, aqui est\u00e1 tudo o que precisa de saber sobre o Google Coral USB Accelerator. O Coral USB Accelerator foi concebido principalmente para aplica\u00e7\u00f5es de baixo consumo de energia,...<\/p>","protected":false},"author":2,"featured_media":5082,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[209],"tags":[1855,210,211,657,1854,1852,1860,1859,215,1857,218,1853,1856,187,636,1858,1850,749],"class_list":["post-5077","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ai","tag-accelerator","tag-ai","tag-artificial-intelligence","tag-cpu","tag-google-edge-tpu","tag-gpu","tag-image-recognition","tag-linear-algebra","tag-machine-learning","tag-matrix-multiplication","tag-neural-network","tag-neural-networks","tag-processor","tag-raspberry-pi","tag-raspberry-pi-4","tag-tensorflow","tag-tpu","tag-usb"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Everything about the Google Coral USB Accelerator | PiCockpit<\/title>\n<meta name=\"description\" content=\"Here&#039;s everything you need to know about the Google Coral USB Accelerator - 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