无线笔式交互系统设计

发布时间：2018-05-15 20:14

本文选题：无线笔式交互系统 + 姿态解算　；参考：《重庆大学》2016年硕士论文

【摘要】：随着多媒体办公教学应用的广泛普及,作为投影画面关键交互设备的传统鼠标及低端遥控产品表现出书写不便、平滑度不高、使用范围受限等缺点,使用户无法良好地进行即时推导演算、记录标注等活动。本文针对多媒体应用中出现的实际问题,设计了更加人性化的无线笔式交互系统,满足书写习惯,增强用户与受众之间的互动性,具有市场推广价值。本文设计的无线笔式交互系统,是在调研国内外无线手势轨迹识别技术的基础上,采用CC2541无线芯片,通过低功耗蓝牙BLE协议进行数据传输,功耗低性能好,适配性强;采用MPU6050传感芯片,加速度计与陀螺仪集成于一片,集成度高,有效地避免了轴间差,有助于缩小了电路板面积,自带数据处理单元,有利于数据融合解算姿态信息;配合上位机显示软件,功能丰富,便于使用。主要完成的工作有:(1)分析了国内外相关产品与研究成果发展现状,对比了几种常见的无线手势轨迹识别技术,分析了技术优缺点,选择了惯性传感器定位技术,确定了本文设计内容;(2)对比了主流无线通讯协议,选择低功耗蓝牙协议,结合实际应用要求选择CC2541作为系统核心芯片,选择MPU6050作为传感芯片,对比选择四元数法作为姿态解算方法;(3)设计了系统发射端的RF无线通信、传感器、电源管理、交互、时钟等各模块电路原理图,完成了PCB板图绘制,焊接得到硬件实物,并进行了基本调试,验证了硬件功能;(4)在IAR EW for 8051环境下开发了系统软件程序,完成了发射端数据采集与处理、无线发送的程序,完成了接收端无线接收、HID通信的程序,并对姿态解算部分的程序进行了优化,在Visual C++开发环境设计了便于书写绘画的多功能上位机显示系统;(5)完成了实物硬件与软件功能联合测试,测试了系统软件与上位机软件的使用效果,验证了系统硬件与软件的可使用性。
[Abstract]:With the wide application of multimedia office teaching, the traditional mouse and low-end remote control products, which are the key interactive equipment of projection screen, have the disadvantages of inconvenient writing, low smoothness, limited range of use, etc. So that the user can not do a good real-time derivation calculus, record tagging and other activities. Aiming at the practical problems in multimedia application, this paper designs a more humanized wireless pen-type interactive system to meet the writing habits and enhance the interaction between users and audiences, which has the value of market promotion. The wireless pen-type interactive system designed in this paper is based on the research of the domestic and foreign wireless gesture track recognition technology, adopts the CC2541 wireless chip, carries on the data transmission through the low-power Bluetooth BLE protocol, the power consumption low performance is good, the adaptability is strong; Using MPU6050 sensor chip, accelerometer and gyroscope are integrated in one chip, which has high integration degree, effectively avoids the difference between axes, helps to reduce the area of circuit board, brings in data processing unit, and helps to solve attitude information by data fusion. With host computer display software, rich function, easy to use. The main work accomplished is: (1) analyzing the development status of related products and research achievements at home and abroad, comparing several common wireless gesture locus recognition techniques, analyzing the advantages and disadvantages of the technology, choosing the inertial sensor positioning technology. Compared with the mainstream wireless communication protocol, we choose low-power Bluetooth protocol, select CC2541 as the core chip of the system, and choose MPU6050 as the sensor chip, in combination with the practical application requirements, we choose CC2541 as the core chip of the system and MPU6050 as the sensor chip. The RF wireless communication, sensor, power management, interaction, clock and other module circuit schematic diagrams of RF wireless communication, sensor, power management, interaction, clock and so on are designed by using quaternion method as the attitude calculation method. The drawing of PCB board diagram is completed, and the hardware object is obtained by welding. The basic debugging is carried out, and the hardware function is verified. The system software program is developed under the environment of IAR EW for 8051. The program of data acquisition and processing at the transmitter and wireless transmission is completed, and the program of wireless receiving hid communication is completed at the receiving end. The program of attitude calculation is optimized, and the display system of multi-function host computer is designed in Visual C development environment, which is convenient for writing and drawing.) the joint testing of hardware and software functions is completed. The application effect of system software and upper computer software is tested, and the usability of system hardware and software is verified.
【学位授予单位】：重庆大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：G434

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