【安信可UWB室内定位模组NodeMCU-BU01】02：模块测距性能实测 测距精度测试
<div class='showpostmsg'><p style="text-align:left"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="宋体">在平面范围内做以下距离测试：</font></span></span></span></span></p><table class="MsoTableGrid" style="border-collapse:collapse; border:none; text-align:justify; font-family:"Times New Roman"; font-size:13px">
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<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="宋体">实际距离</font></span></span></span></span></p>
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<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="宋体">测量距离</font></span></span></span></span></p>
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<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="宋体">偏差</font></span></span></span></span></p>
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<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="Calibri">1.3</font><font face="宋体">米</font></span></span></span></span></p>
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<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="Calibri">1.92</font><font face="宋体">米</font></span></span></span></span></p>
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<td style="border-bottom:1px solid black; width:189px; padding:0px 7px 0px 7px; border-top:none; border-right:1px solid black; border-left:1px solid black" valign="top">
<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="Calibri">0.62</font><font face="宋体">米</font></span></span></span></span></p>
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<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="Calibri">3.1</font><font face="宋体">米</font></span></span></span></span></p>
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<td style="border-bottom:1px solid black; width:189px; padding:0px 7px 0px 7px; border-top:none; border-right:1px solid black; border-left:1px solid black" valign="top">
<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="Calibri">3.86</font><font face="宋体">米</font></span></span></span></span></p>
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<td style="border-bottom:1px solid black; width:189px; padding:0px 7px 0px 7px; border-top:none; border-right:1px solid black; border-left:1px solid black" valign="top">
<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="Calibri">0.76</font><font face="宋体">米</font></span></span></span></span></p>
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<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="Calibri">3.7</font><font face="宋体">米</font></span></span></span></span></p>
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<td style="border-bottom:1px solid black; width:189px; padding:0px 7px 0px 7px; border-top:none; border-right:1px solid black; border-left:1px solid black" valign="top">
<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="Calibri">4.47</font><font face="宋体">米</font></span></span></span></span></p>
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<td style="border-bottom:1px solid black; width:189px; padding:0px 7px 0px 7px; border-top:none; border-right:1px solid black; border-left:1px solid black" valign="top">
<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="Calibri">0.77</font><font face="宋体">米</font></span></span></span></span></p>
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<td style="border-bottom:1px solid black; width:189px; padding:0px 7px 0px 7px; border-top:none; border-right:1px solid black; border-left:1px solid black" valign="top">
<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="Calibri">0.4</font><font face="宋体">米</font></span></span></span></span></p>
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<td style="border-bottom:1px solid black; width:189px; padding:0px 7px 0px 7px; border-top:none; border-right:1px solid black; border-left:1px solid black" valign="top">
<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="Calibri">0.52</font><font face="宋体">米</font></span></span></span></span></p>
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<td style="border-bottom:1px solid black; width:189px; padding:0px 7px 0px 7px; border-top:none; border-right:1px solid black; border-left:1px solid black" valign="top">
<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="Calibri">0.12</font><font face="宋体">米</font></span></span></span></span></p>
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<p style="text-align:left"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="宋体">可以看出，随着距离增大，测距误差在增大，这里和官方声明的测距精度</font><font face="Calibri">10CM</font><font face="宋体">以内出入比较大。如果是个人测量问题，还请官方指正。</font></span></span></span></span></p>
<p style="text-align:left"> </p>
<p style="text-align:left"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="宋体">测距输出速率测试：（测量结果：</font><font face="Calibri">1</font><font face="宋体">秒左右输出一次）</font></span></span></span></span></p>
<p style="text-align:left"> </p>
<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="宋体">另外设置</font><font face="Calibri">AT+interval=5</font><font face="宋体">，</font></span></span></span></span></p>
<p style="text-align:justify"><span style="font-size:10.5pt"><span style="font-family:Calibri"><span style="font-size:10.5000pt"><span style="font-family:宋体"><font face="宋体">看手册中也并未说明设置的范围数值，建议官方注明范围，经测试发现设置从</font><font face="Calibri">0-255</font><font face="宋体">，发现串口输出的周期基本均保持在</font><font face="Calibri">1S</font><font face="宋体">输出一次， 但是值越大，则串口输出的值越慢与真实距离的变化，猜想这里数值越大代表数字滤波次数越多，故输出值变化较慢。</font></span></span></span></span></p>
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<p style="text-align:justify"> </p>
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