机器人上是不是传感器越多，越能有效避障？

<p style="color:rgb(0,0,0);font-family:'Lantinghei SC', 'Open Sans', Arial, 'Hiragino Sans GB', 'Microsoft YaHei', ' FAE8F6F96C59ED1', STHeiti, 'WenQuanYi Micro Hei', SimSun, sans-serif;line-height:30px;background-color:rgb(255,255,255);">激光雷达作为自动驾驶和机器人等领域中的重要传感器，一直扮演着“眼睛”的角色，360°扫描周围环境，构建厘米级别高精度地图，为后续避障导航做辅助。<p style="color:rgb(0,0,0);font-family:'Lantinghei SC', 'Open Sans', Arial, 'Hiragino Sans GB', 'Microsoft YaHei', ' FAE8F6F96C59ED1', STHeiti, 'WenQuanYi Micro Hei', SimSun, sans-serif;line-height:30px;background-color:rgb(255,255,255);"><p style="color:rgb(0,0,0);font-family:'Lantinghei SC', 'Open Sans', Arial, 'Hiragino Sans GB', 'Microsoft YaHei', ' FAE8F6F96C59ED1', STHeiti, 'WenQuanYi Micro Hei', SimSun, sans-serif;line-height:30px;background-color:rgb(255,255,255);">但如果仅使用激光雷达作为唯一的避障传感器，则难以对玻璃、镜子等投射或者反射光信号的物体进行检测，此外单线束的激光雷达也难以检测出不同高度的障碍物信息。所以，多传感器融合是大势所趋。<p style="color:rgb(0,0,0);font-family:'Lantinghei SC', 'Open Sans', Arial, 'Hiragino Sans GB', 'Microsoft YaHei', ' FAE8F6F96C59ED1', STHeiti, 'WenQuanYi Micro Hei', SimSun, sans-serif;line-height:30px;text-align:center;background-color:rgb(255,255,255);"><img alt="集中常见的传感器.PNG" src="https://201907.oss-cn-shanghai.aliyuncs.com/cs/5606289-6d00437bafdf9d6d6e572aa6a2a24145.png" style="border:none;" title="1531378245992851.png"><p style="color:rgb(0,0,0);font-family:'Lantinghei SC', 'Open Sans', Arial, 'Hiragino Sans GB', 'Microsoft YaHei', ' FAE8F6F96C59ED1', STHeiti, 'WenQuanYi Micro Hei', SimSun, sans-serif;line-height:30px;text-align:center;background-color:rgb(255,255,255);">几种常见的传感器<p style="color:rgb(0,0,0);font-family:'Lantinghei SC', 'Open Sans', Arial, 'Hiragino Sans GB', 'Microsoft YaHei', ' FAE8F6F96C59ED1', STHeiti, 'WenQuanYi Micro Hei', SimSun, sans-serif;line-height:30px;text-align:center;background-color:rgb(255,255,255);"><p style="color:rgb(0,0,0);font-family:'Lantinghei SC', 'Open Sans', Arial, 'Hiragino Sans GB', 'Microsoft YaHei', ' FAE8F6F96C59ED1', STHeiti, 'WenQuanYi Micro Hei', SimSun, sans-serif;line-height:30px;background-color:rgb(255,255,255);">目前较为常见的组合是采用激光雷达、深度相机外加超声波等传感器的方式来进行融合避障导航：<p style="color:rgb(0,0,0);font-family:'Lantinghei SC', 'Open Sans', Arial, 'Hiragino Sans GB', 'Microsoft YaHei', ' FAE8F6F96C59ED1', STHeiti, 'WenQuanYi Micro Hei', SimSun, sans-serif;line-height:30px;background-color:rgb(255,255,255);"><table cellpadding="0" cellspacing="0" style="color:rgb(0,0,0);font-family:'Lantinghei SC', 'Open Sans', Arial, 'Hiragino Sans GB', 'Microsoft YaHei', ' FAE8F6F96C59ED1', STHeiti, 'WenQuanYi Micro Hei', SimSun, sans-serif;font-size:16px;line-height:30px;background-color:rgb(255,255,255);"><tbody><tr class="firstRow"><td style="font-family:'Lantinghei SC', 'Open Sans', Arial, 'Hiragino Sans GB', 'Microsoft YaHei', ' FAE8F6F96C59ED1', STHeiti, 'WenQuanYi Micro Hei', SimSun, sans-serif;font-size:16px;line-height:30px;" valign="top" width="83">传感器</td><td style="border-left-style:none;font-family:'Lantinghei SC', 'Open Sans', Arial, 'Hiragino Sans GB', 'Microsoft YaHei', ' FAE8F6F96C59ED1', STHeiti, 'WenQuanYi Micro Hei', SimSun, sans-serif;font-size:16px;line-height:30px;" valign="top" width="106">安装位置</td><td style="border-left-style:none;font-family:'Lantinghei SC', 'Open Sans', Arial, 'Hiragino Sans GB', 'Microsoft YaHei', ' FAE8F6F96C59ED1', STHeiti, 'WenQuanYi Micro Hei', SimSun, sans-serif;font-size:16px;line-height:30px;" valign="top" width="254">目的</td></tr><tr><td style="border-top-style:none;font-family:'Lantinghei SC', 'Open Sans', Arial, 'Hiragino Sans GB', 'Microsoft YaHei', ' FAE8F6F96C59ED1', STHeiti, 'WenQuanYi Micro Hei', SimSun, sans-serif;font-size:16px;line-height:30px;" valign="top" width="83">激光雷达</td><td style="border-top-style:none;border-left-style:none;font-family:'Lantinghei SC', 'Open Sans', Arial, 'Hiragino Sans GB', 'Microsoft YaHei', ' FAE8F6F96C59ED1', STHeiti, 'WenQuanYi Micro Hei', SimSun, sans-serif;font-size:16px;line-height:30px;" valign="top" width="106">机器人前方</td><td style="border-top-style:none;border-left-style:none;font-family:'Lantinghei SC', 'Open Sans', Arial, 'Hiragino Sans GB', 'Microsoft YaHei', ' FAE8F6F96C59ED1', STHeiti, 'WenQuanYi Micro Hei', SimSun, sans-serif;font-size:16px;line-height:30px;" valign="top" width="254">导航定位和避障的主要传感器</td></tr><tr><td style="border-top-style:none;font-family:'Lantinghei SC', 'Open Sans', Arial, 'Hiragino Sans GB', 'Microsoft YaHei', ' FAE8F6F96C59ED1', STHeiti, 'WenQuanYi Micro Hei', SimSun, sans-serif;font-size:1