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中文摘要：
针对室内定位系统测高分辨率并不理想的情况,为了解决楼层分辨的问题,采用Intersema公司出产的基于MEMS技术的数字压力传感器MS5534C和AVR单片机设计并实现了差分气压测高模块。阐述了差分气压测高的思想,分析了影响测高的因素,介绍了数字压力传感器MS5534C,重点从差分气压测高系统的稳定性、可靠性角度分析了差分气压测高在室内定位系统中应用的性能。实验结果表明,差分气压测高技术辅助室内定位系统可以提高用户测点绝对高度的测量精度以及高程分辨率,能满足日常高程定位需求。
英文摘要：
High-resolution in indoor positioning system is not ideal.In order to solve the problem to distinguish floors,differential barometric altimetry module is designed with MS5534C based on MEMS and AVR microcontroller.MS5534C is a digital pressure sensor produced by Intersema.This paper elaborates differential barometric altimetry,analyses the impact factors of altimetry,introduces a digital pressure sensor MS5534C and focuses on analyzing the indoor positioning system assisted by the differential barometric altimetry from the view of stability and reliability.Initial experiment results show that a good complementary effect will be formed for the indoor positioning system by differential barometric altimetry.Measurement accuracy and resolution is improved,the daily needs of elevation is met.
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