谷歌将逐步淘汰Android Things

{"type":"doc","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"谷歌最近宣布将会"},{"type":"link","attrs":{"href":"https:\/\/developer.android.com\/things\/","title":"","type":null},"content":[{"type":"text","text":"逐步淘汰其Android Things IoT平台"}]},{"type":"text","text":"。2021年1月5日之后将会拒绝接受新项目，Android Things会在2022年对所有项目关闭。"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"谷歌的"},{"type":"link","attrs":{"href":"https:\/\/developer.android.com\/things\/","title":"","type":null},"content":[{"type":"text","text":"简短的声明"}]},{"type":"text","text":"只有一句话并且还有一个指向FAQ页面以获取详细信息的链接："}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"blockquote","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"Android Things控制台将会在"},{"type":"text","marks":[{"type":"strong"}],"text":"2021年1月5日"},{"type":"text","text":"停止支持新项目，并且会在"},{"type":"text","marks":[{"type":"strong"}],"text":"2022年1月5日"},{"type":"text","text":"关闭对所有现有项目的支持。"}]}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"FAQ页面的详细信息如下："}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"blockquote","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"2019年2月，我们宣布了一项针对设备制造商的关于Android Things平台商业使用的更新。"},{"type":"text","marks":[{"type":"strong"}],"text":"根据这些更新，我们将关闭Android Things的非商业用途"},{"type":"text","text":"。从2021年1月5日开始，控制台将不再允许使用NXP i.MX7D和Raspberry Pi 3B创建新项目。"}]}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"Android Things已经用到了智能显示器和智能音响中，包括"},{"type":"link","attrs":{"href":"https:\/\/www.lenovo.com\/us\/en\/smart-display\/","title":"","type":null},"content":[{"type":"text","text":"联想的Smart Display"}]},{"type":"text","text":"、"},{"type":"link","attrs":{"href":"https:\/\/www.jbl.com\/voice-activated-speaker\/JBLLINKVIEWBLKAM.html","title":"","type":null},"content":[{"type":"text","text":"三星的JBL"}]},{"type":"text","text":"以及"},{"type":"link","attrs":{"href":"https:\/\/www.youtube.com\/watch?v=W9eZ28Ocaho&feature=emb_logo","title":"","type":null},"content":[{"type":"text","text":"LG WK9智能显示器"}]},{"type":"text","text":"。"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"有多个原因可以阐述Android Things为何会落到如此境地。尽管谷歌推动Android Things作为智能显示器的平台，但是谷歌并没有在自己的硬件上使用它。谷歌自己的智能显示器使用的是改良版的"},{"type":"link","attrs":{"href":"https:\/\/developers.google.com\/cast","title":"","type":null},"content":[{"type":"text","text":"Google Cast平台"}]},{"type":"text","text":"。"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"有些人认为Android Things的硬件需求比较苛刻。Android Things支持三款电路板：Intel Edison、NXP Pico i.MX6UL和Raspberry Pi 3。它需要至少512MB的RAM，大多数电路板至少配置了1GB的RAM。"},{"type":"link","attrs":{"href":"https:\/\/twitter.com\/garyexplains","title":"","type":null},"content":[{"type":"text","text":"Gary Sims"}]},{"type":"text","text":"在他的文章中[这样说到](https:\/\/www.androidauthority.com\/what-is-android-things-gary-explains-740572\/#%3a~%3atext=Android Things supports three boards%3a the Intel Edison,,and that both 32-bits and 64-bits are supported.)："}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"blockquote","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"Android使用Linux kernel作为其核心，Linux是一个支持虚拟内存的、完整的多任务操作系统。这意味着，Android Things需要支持虚拟内存的处理器，换句话说，也就是具有完整MMU的处理器。[…]我提及这一点的原因在于，很多IoT产品使用微控制器，因此具有更少的内存、更小的闪存、耗电更少并且操作系统也不那么复杂。选择使用Android和Linux，谷歌瞄准的是IoT市场的一个细分市场，并且自动地将自己排除在其他细分市场之外。"}]}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"更多太具体的设备规范会对IoT产品的经济产生负面影响。Moddable IoT平台允许开发者"},{"type":"link","attrs":{"href":"https:\/\/www.infoq.com\/news\/2018\/11\/moddable-iot-javascript-engine\/","title":"","type":null},"content":[{"type":"text","text":"在设备上运行JavaScript引擎"}]},{"type":"text","text":"，这些设备的成本在1美元左右，并且RAM只有32KB。Moddable的联合创始人Peter Hoddie在InfoQ的采访中，"},{"type":"link","attrs":{"href":"https:\/\/www.infoq.com\/articles\/iot-javascript-microcontrollers-Moddable-tc53\/","title":"","type":null},"content":[{"type":"text","text":"阐述了在价格低廉的设备上运行嵌入式软件的好处"}]},{"type":"text","text":"："}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"blockquote","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"我们专注于低端控制器就是专注产品用户的范例。我们希望在每个设备上都能看到优秀的软件，也就是安全、可靠、易用的软件。如果产品需要上百美元的设备才能运行这些软件的话，那么这就是不成立的。"}]}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","marks":[{"type":"italic"}],"text":"Raspberry Pi IoT In C"},{"type":"text","text":"一书的作者Harry Fairhead"},{"type":"link","attrs":{"href":"https:\/\/www.i-programmer.info\/news\/91-hardware\/12535-android-things-is-now-less-of-a-thing.html","title":"","type":null},"content":[{"type":"text","text":"提到了性能方面的问题"}]},{"type":"text","text":"："}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"blockquote","content":[{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"Things团队很大问题在于将安全性解释为用户空间的软件不应该直接访问GPIO行和内存。这实际上会让Things变得非常慢，甚至直接闪烁几个LED都是很艰巨的挑战。"}]}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"Android Things是谷歌推出的"},{"type":"link","attrs":{"href":"https:\/\/killedbygoogle.com\/","title":"","type":null},"content":[{"type":"text","text":"现已废弃的"}]},{"type":"text","text":"基于Android的操作系统平台，在2015年的Google I\/O会议上宣布，并在2018年发布。在2019年，Android Things"},{"type":"link","attrs":{"href":"https:\/\/en.wikipedia.org\/wiki\/Android_Things#cite_ref-:1_4-0","title":"","type":null},"content":[{"type":"text","text":"放弃了对低能耗硬件"}]},{"type":"text","text":"的支持，重新专注于智能手机类的设备。"}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"text","text":"原文链接："}]},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null}},{"type":"paragraph","attrs":{"indent":0,"number":0,"align":null,"origin":null},"content":[{"type":"link","attrs":{"href":"https:\/\/www.infoq.com\/news\/2020\/12\/google-terminates-android-things\/","title":"","type":null},"content":[{"type":"text","text":"Google Phases Out Android Things"}]}]}]}