基于游戏引擎的图形用户界面集群渲染系统设计与实现

Design and Implement of a Three-axis Magnetic Resistance Type Electronic Compass

针对低功耗的导航应用,设计了一种小型化、低功耗、结构简单的具有倾斜补偿功能的三轴磁阻式电子罗盘。硬件方面是由Honey Well公司的三维磁阻式传感器HMC5883L,三维加速度传感器使用低成本倾斜度模块GY-25,以及德州仪器的MSP430F149处理器组成。通过采集各模块的数据,得到系统的俯仰角、翻滚角、航向角等信息,并通过LCD1602显示载体的航向角和姿态角。软件方面,在分析磁性物质影响的基础上,提出了合理可行的矫正方法来消除影响罗盘测量精度的误差,实现了能准确测量罗盘朝向、运行稳定的三维电子罗盘。

For navigation of low power consumption, it designs a three-axis magnetic resistance type electronic compass which is miniaturization, low power consumption, simple structure and has the function of slope compensation. Hardware is made up of Honeywell HMC5883L, three-dimensional magnetic resistance sensor, three-dimensional acceleration sensor which uses low cost tilt module GY-25, and of Texas instruments MSP430F149 processor. By data acquisition module, the information such as the pitch angle, roll angle, heading angle can be obtaintd, and through LCD1602 display, carrier course angle and attitude angle can be displayed. Software, based on the analysis on the influence of magnetic particles, feasible correction method is proposed to eliminate the influence the compass error in measuring accuracy, and three-dimensional electronic compass can realize the accurate measurement of compass heading and steady operation.