地应力监测中定位与姿态数据采集系统设计

针对地应力低频电磁监测中高效数据采集、精准授时和实时定姿定位问题，设计并实现了基于嵌入式的定位与姿态测量模块相结合的实时数据采集系统，以ARM微处理器(S3C6410)和嵌入式Linux作为系统控制核心平台，详细介绍了系统软硬件设计架构，设计并完成定位与姿态测量特征数据提取算法，基于LCD触摸屏和Qt/Embedded进行数据采集处理终端的图形用户界面设计并实现人机交互；另外，系统在完成控制显示等功能的同时能将所需数据实时存储至SD卡，为后续数据分析提供依据。系统联调与外场实验验证表明：该系统能够完成定位与姿态数据的实时采集和处理，数据获取效率较高，有效解决了地应力监测中的实时定姿定位，能够高速、实时、可靠地进行地应力低频电磁监测。

Design of positioning and attitude data acquisition system for geostress monitoring

Aiming at efficient data acquisition, real-time precise positioning and attitude measurement problems of geostress low-frequency electromagnetic monitoring, real-time data acquisition system was designed and implemented in combination with positioning and attitude measurement module. The hardware system took ARM microprocessor (S3C6410) as control core based on embedded Linux. The hardware and software design architecture were introduced in detail. In addition, the algorithm of positioning and attitude measurement characteristics data extraction was proposed. Monitoring terminal of data acquisition and processing was designed using Qt/Embedded GUI programming technique based on LCD (Liquid Crystal Display) and achieved human-computer interaction. Meanwhile, the required data could be real-time stored to SD card. The results of system debugging and actual field experiments indicate that the system can complete the positioning and attitude data acquisition and processing, effectively solve the problem of real-time positioning for in-situ monitoring. It also can realize geostress low-frequency electromagnetic monitoring with high-speed, real-time and high reliability.