【选型】Epson单轴陀螺仪模块GGPM01LKPU应用于冰箱门检测上，反应时间小于3s，误差±20°/h

时间： 2021-06-30 来源：世强

技术问答

为减少碳排放和销售商品精准投放，冰箱头部企业美的科技开始在冰箱上安装一些智能传感器来为一些特殊的客户提供定制化的服务。传统的冰箱门的状态检测就只有两个状态，一个是开，另外一个是关。商超用定制化冰箱，客户需求基于视觉的传感器来拍摄冰箱每层的货物的多少进行数据分析从而实现精准投放。视觉传感器需要冰箱门在开到一定角度时开始对焦拍摄。这时就需要一个冰箱门开门角度的信号测量，传统的角度测量都是基于磁的传感器，需要搭配磁铁和复杂结构设计。

EPSON的单轴陀螺仪可测偏航角，可实时输出角度信息，很好的帮助客户解决此问题，省去复杂结构设计，仅仅需要一个陀螺仪模块就能轻松实现冰箱门开门角度信息的测量。

单轴陀螺仪模块 GGPM01LKPU在这个应用中的主要优势如下：

1.单轴陀螺仪模块，直接I2C输出或者串口输出偏航角信息。省去客户使用芯片开发算法和研究底层函数的开发负担。

2.模块功耗小，反应灵敏度高。误差范围小。反应时间小于3s，误差±20°/h。

3.安装结构设计简单，不需要客户设计复杂的安装结构。

模块实物如下图：

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