一体式倾角数显仪的设计与实现  

Design and Implementation of Integrated Digital Inclinometer

作　　者：苏蓓蓓[1] 杜亮[1] 钱颖[1] SU Bei-bei;DU Liang;QIAN Ying(School of Internet of Things Technology,Wuxi Vocational College of Science and Technology,Wuxi 214028 China)

机构地区：[1]无锡科技职业学院物联网技术学院,江苏无锡214028

出　　处：《科技创新与生产力》2021年第10期94-98,共5页Sci-tech Innovation and Productivity

基　　金：江苏省高校哲学社会科学研究一般项目(2019SJA0840,2020SJA0944);江苏省“青蓝工程”资助项目(QLGC-2020-04)。

摘　　要：为了研制将倾角传感器和数显仪表合二为一的便携式产品,设计了一体式倾角数显仪,主控芯片采用STM32F103RCT6单片机,通过检测芯片ADXL327B输出的电压变化值,将数据进行AD转换,可得到倾斜角度值,再将数字量数据进行卡尔曼滤波算法处理,使其测量精度可达0.1°,处理后的数据送TFT屏,即可显示角度数据。该产品还可通过串口与其他设备进行角度数据通信,通过按键实现数据锁存、相对零点/绝对零点切换功能。结果表明,该设计具有精度高、功能齐全、使用方便的特点。To develop a portable product which combines inclination sensor and digital display instrument,an integrated digital inclinometer is designed.The main control chip is STM32F103RCT6 single chip microcomputer.By detecting the voltage change value output by ADXL327B and performing analog-to-digital conversion,the tilt angle value can be obtained.Then the digital data is processed by Kalman filtering algorithm,so that the measurement accuracy can reach 0.1.The processed data is sent to TFT screen to display the angle data.The product can also communicate with other devices through serial port,and realize data latch and relative zero or absolute zero switching functions by pressing the key.The results show that the design has the characteristics of high precision,complete function and convenient use.

关 键 词：倾角数显仪 卡尔曼滤波 测量精度 串口 数据通信 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]