<p><strong>解决方案概要</strong></p>
<p><strong>将Wi-Fi电波用作传感器</strong></p>
<img alt="解决方案概要" data-align="center" data-entity-type="file" data-entity-uuid="e0c566e9-18c9-4f6e-8146-c785632362d8" src="/sites/default/files/inline-images/%E5%8E%82%E5%95%86_0.png" />
<p>Origin Wireless公司的独家技术Time Reversal MachineTM(TRM)，可将Wi-Fi电波用作传感器，与村田无线模块技术相结合，可以实时检测环境变化。此项技术是利用Marvell公司的Wi-Fi IC获取的Channel State Information(CSI)和H-matrix data实现的。</p>
<p>TRM技术的运用事例，包括空间检测和测位。可以通过视频浏览空间检测的运用事例“室内监控”和“呼吸监测”的演示：<a href="https://solution.murata.com/zh-cn/technology/wifi-sensingsolution-width…;
<p><strong>特点</strong></p>
<ul>
<li>利用在室内产生的无线电多径传播，可在电波所及的范围内传感、识别发射源位置</li>
<li>无传感器/无摄像头/无可穿戴设备，在无压力状态下实现室内监控</li>
</ul>
<p><strong>原理</strong></p>
<ul>
<li>根据电波的反射变化检测环境变化</li>
<li>逆向计算反射路线，检测电波的发射位置</li>
<li>可在电波所及的范围内传感</li>
</ul>
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" stroked="f"> <o:lock aspectratio="t" v:ext="edit"> <w:wrap type="none"> <w:anchorlock> </w:anchorlock></w:wrap></o:lock></v:rect><img id="_x0000_i1026" src="" /></p>
<img alt="原理" data-align="center" data-entity-type="file" data-entity-uuid="f0ea7b8b-5658-4620-8964-f5425c64b069" height="253" src="/sites/default/files/inline-images/%E5%8E%9F%E7%90%86_1.png" width="637" />
<p><strong>用途</strong></p>
<ul>
<li>生活日志</li>
<li>现场监控</li>
<li>睡眠监测</li>
<li>跌倒检测</li>
<li>室内测位</li>
</ul>
<p><strong>系统配置事例</strong><br />
开发客户产品时的配置事例如下所示：</p>
<p>利用村田制作所的Wi-Fi module、Origin Wireless公司提供的软件和云端服务。</p>
<img alt="系统配置事例" data-align="center" data-entity-type="file" data-entity-uuid="841dcc52-f3e7-4b11-befb-e1888ea0be4a" height="808" src="/sites/default/files/inline-images/%E7%B3%BB%E7%BB%9F%E9%85%8D%E7%BD%AE%E4%BA%8B%E4%BE%8B_1.png" width="538" />
<p><strong>解决方案配置</strong></p>
<ul>
<li><a href="https://www.originwirelessai.com/">Origin Wireless公司软件开发工具</a></li>
<li>传感用Murata Wi-Fi 模块 powered by Marvell</li>
<li>评估套件(option)</li>
</ul>
<p><img alt="解决方案配置" data-entity-type="file" data-entity-uuid="eb053989-fb7c-4c1e-88a8-8e152dfd5971" height="220" src="/sites/default/files/inline-images/%E8%A7%A3%E5%86%B3%E6%96%B9%E6%A1%88%E9%85%8D%E7%BD%AE_0.PNG" width="657" /></p>
<table border="1" cellpadding="0">
<tbody>
<tr>
<td bgcolor="#CCCCCC" colspan="2">
<p align="left"><strong>Part Number</strong></p>
</td>
</tr>
<tr>
<td>
<p align="center"><strong>MP P/N</strong></p>
</td>
<td>
<p align="left">T.B.D.</p>
</td>
</tr>
<tr>
<td bgcolor="#CCCCCC" colspan="2">
<p align="left"><strong>Chipset</strong></p>
</td>
</tr>
<tr>
<td>
<p align="center"><strong>WLAN</strong></p>
</td>
<td>
<p align="left">Marvell 88W8897</p>
</td>
</tr>
<tr>
<td bgcolor="#CCCCCC" colspan="2">
<p align="left"><strong>Features</strong></p>
</td>
</tr>
<tr>
<td>
<p align="center"><strong>WLAN</strong></p>
</td>
<td>
<p align="left">IEEE802.11a/b/g/n/ac, 2x2 MIMO</p>
</td>
</tr>
<tr>
<td>
<p align="center"><strong>Bluetooth</strong></p>
</td>
<td>
<p align="left">Ver.4.2</p>
</td>
</tr>
<tr>
<td>
<p align="center"><strong>Interface</strong></p>
</td>
<td>
<p align="left">WLAN : PCIe<br />
Bluetooth：UART/PCM<br />
ID Chip：I2C</p>
</td>
</tr>
<tr>
<td>
<p align="center"><strong>Dimensions (mm)</strong></p>
</td>
<td>
<p align="left">22mm × 30 mm</p>
</td>
</tr>
<tr>
<td>
<p align="center"><strong>Shield/Mold</strong></p>
</td>
<td>
<p align="left">Metal Shield</p>
</td>
</tr>
<tr>
<td>
<p align="center"><strong>Operating Temp. (℃)</strong></p>
</td>
<td>
<p align="left">T.B.D.</p>
</td>
</tr>
</tbody>
</table>
<p>※本评估套件只向打算利用年产1万台以上的批量生产系统商品化的客户提供。<br />
※本页登载的应用程序本身并不是销售的，而是作为本公司产品的适用事例来介绍的。</p>
<p><strong>相关的产品和软件</strong></p>
<p><img alt="Murata RF Modules" data-entity-type="file" data-entity-uuid="9958fecd-5616-4bfd-83e3-6fa10442f510" src="/sites/default/files/inline-images/Type-1ADCertified_A_6_0_1.jpg" /></p>
<p><a href="https://wireless.murata.com/eng/products/rf-modules-1.html">Murata RF Modules</a></p>
<p><img alt="Connectivity Module Software Solution" data-entity-type="file" data-entity-uuid="a2107d6e-94b1-4dd6-bcce-6091b90bfc2c" src="/sites/default/files/inline-images/connectivity_module_software_solution_1_0.jpg" /></p>
<p>Connectivity Module Software Solution</p>