| 基于单片机的无人机气压高度测量系统的设计 |
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| 引用本文： | 吕亚强,严家明,毛瑞娟. 基于单片机的无人机气压高度测量系统的设计[J]. 测控技术, 2009, 28(2) |
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| 作者姓名： | 吕亚强 严家明 毛瑞娟 |
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| 作者单位： | 西北工业大学,电子信息学院,陕西,西安,710072 |
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| 摘 要： | 介绍了一种基于C8051F352型单片机的无人机高度传感器测量系统的设计及实现过程,详细论述了系统硬件、软件及温度补偿算法的设计原理、程序流程图等.通过对压力传感器的温度补偿、气压-高度的非线性拟合,解决了传感器的温度漂移,提高了系统精度;并利用单片机的SPI和UART串口总线分别实现了温度、高度的实时显示及与上位机的通信.该系统具有电路结构简单、体积小、精度高、效率高、稳定性高的特点.
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| 关 键 词： | 压力传感器 温度传感器 C8051F352微控器 温度补偿 |
Design of Air Pressure Altitude Measuring System in Pilotless Aircraft Based on Microcontroller |
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| LV Ya-qiang,YAN Jia-ming,MAO Rui-juan. Design of Air Pressure Altitude Measuring System in Pilotless Aircraft Based on Microcontroller[J]. Measurement & Control Technology, 2009, 28(2) |
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| Authors: | LV Ya-qiang YAN Jia-ming MAO Rui-juan |
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| Affiliation: | School of Electronics and Information;Northwestern Polytechnical Uninversity;Xi'an 710072;China |
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| Abstract: | The design and realization of the altitude sensor measuring system in pilotless aircraft based on microcontroller C8051F352 are introduced.The hardware,software and the design principle and program flow chart of the temperature compensation algorithmic are discussed particularly.The temperature excursion of sensor is resolved by temperature compensation of the pressure sensor and nonlinear compensation of pressure-altitude,the precision of the system is also advanced.With SPI and UART of the microcontroller... |
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| Keywords: | pressure sensor temperature sensor C8051F352 temperature compensation |
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