村田Wi-Fi 智能音箱解决方案

由 judy 提交于周三, 19 十二月 2018 - 14:28

<p><strong>村田无线LAN模块 X QuickLogic公司的 EOS S3 = 低功耗，易搭建系统</strong></p>

<p>利用村田的无线LAN 智能模块 Type1GC和QuickLogic公司的 EOS S3，可轻易实现低功耗智能音箱的解决方案。在这里我们将介绍村田智能音箱解决方案的特点，并做简单的演示。</p>

<h3><strong>解决方案特点</strong></h3>

<p><strong>voice trigger待机时的功耗可削减90%</strong></p>

<p><strong>voice trigger待机时的功耗比较</strong></p>

<p>传统技术</p>
<img alt="传统技术" data-align="center" data-entity-type="file" data-entity-uuid="40887716-f92f-4a7a-875d-d7f71c813749" height="262" src="/sites/default/files/inline-images/%E4%BC%A0%E7%BB%9F%E6%8A%80%E6%9C%AF.png" width="718" />
<p>待机时需要的的电流约为120mA</p>

<p><strong>Murata wireless LAN module + EOS S3</strong></p>
<img alt="Murata wireless LAN module + EOS S3" data-align="center" data-entity-type="file" data-entity-uuid="44f6d803-f38d-4ab7-9dec-818713c9b452" height="271" src="/sites/default/files/inline-images/Murata%20wireless%20LAN%20module%20%2B%20EOS%20S3.png" width="741" />
<p>利用村田的无线LAN模块QuickLogic公司的EOS S3，可以把voice trigger待机时的电流降低到约10mA.</p>

<p><strong>sleep模式下，可进行voice trigger待机，是非常节能的解决方案。</strong></p>

<ul>
<li>Host MPU 保持sleep模式</li>
<li>QuickLogic公司的 EOS S3，可在低功耗的状态下进行voice trigger待机</li>
<li>村田无线LAN模块直保持连接状态，故可从voice trigger待机状态下迅速启动</li>
<li>MPU的处理负荷很少，所以可以应用于低性能产品中</li>
</ul>

<p><strong>易在多种平台上搭建系统</strong></p>
<img alt="易在多种平台上搭建系统" data-align="center" data-entity-type="file" data-entity-uuid="655532e6-9467-4a9d-9ef7-6a52f79ac7da" height="173" src="/sites/default/files/inline-images/%E6%98%93%E5%9C%A8%E5%A4%9A%E7%A7%8D%E5%B9%B3%E5%8F%B0%E4%B8%8A%E6%90%AD%E5%BB%BA%E7%B3%BB%E7%BB%9F.PNG" width="673" />
<p><br />
它是一种解决方案，可以在Linux+村田无线LAN模块的环境上使用</p>

<table border="1" width="100%">
<tbody>
<tr>
<th colspan="2">项目</th>
<th width="152">Type1GC</th>
<th width="239">村田其他模块 with Linux</th>
</tr>
<tr>
<th rowspan="4" width="27">HW</th>
<td width="69">CPU</td>
<td>Cortex-CM4</td>
<td>Cortex-A Series</td>
</tr>
<tr>
<td>UART</td>
<td>接口控制用：村田提供</td>
<td>接口控制用：参考村田Type1GC</td>
</tr>
<tr>
<td>I2S</td>
<td>传输语音用</td>
<td rowspan="2">与Type1GC相同</td>
</tr>
<tr>
<td>GPIO</td>
<td>发生中断用</td>
</tr>
<tr>
<th rowspan="3">SW</th>
<td>OS</td>
<td>ThreadX/FreeRTOS</td>
<td>Linux</td>
</tr>
<tr>
<td>AVS</td>
<td>内置Wiced</td>
<td>需要从开放SDK移植</td>
</tr>
<tr>
<td>Application</td>
<td>内置Wiced</td>
<td>需要新建</td>
</tr>
</tbody>
</table>

<h3>Wi-Fi 智能音箱开发工具</h3>
<img alt="Wi-Fi 智能音箱开发工具" data-align="center" data-entity-type="file" data-entity-uuid="788ba276-7afb-40bc-b2a8-338b59a119ac" height="232" src="/sites/default/files/inline-images/Wi-Fi%20%E6%99%BA%E8%83%BD%E9%9F%B3%E7%AE%B1%E5%BC%80%E5%8F%91%E5%B7%A5%E5%85%B7.png" width="719" />
<p>Murata：<a href="https://wireless.murata.com/eng/products/rf-modules-1/embedded-wi-fi-1/…; target="_blank">Wireless LAN module 「Type1GC」</a></p>

<p>QuickLogic：<a href="https://www.quicklogic.com/platforms/sensor-processing/eos/" target="_blank">QuickLogic EOS S3 and software development kit</a></p>

<p>Cypress：<a href="http://www.cypress.com/products/wiced-software" target="_blank">Cypress IoT Platform 「WICED™ Studio」</a></p>