| Inclinometer technology is the measurement methods and instrument combined, measuring and monitoring the location of underground space and the direction of displacement, angle changes, inclinometer system widely used in railway transportation, hydroelectric dams, bridges, construction, mining, geological environmental surveys and Other infrastructure engineering, to ensure the important link of infrastructure construction carried out safety and smoothly.On basis of inclinometer system composition and operational principle, combining ARM9-based embedded system development process and principles. To design a field intelligent inclinometer, This paper emphasis on research of system hardware and software design, operating system transplant, development of graphical user interface, and embedded database applications and so on. inclinometer uses ARM920T core chip S3C2410 as processor, then accomplished hardware system design focus on it. Which adopts VTI's advanced angle sensor chip SCA100T-D02 as sensitive components, uses LCD monitor and touch-screen to realize data display and man-machine interactive control, uses USB interface and serial port to carry out data transmission, in addition hardware includes transmission line, special angle test tube, rechargeable power supply and other parts.On basis of in-depth analysis about hardware architecture and linux operating system, completed embedded linux operating system transplant, used MiniGUI as graphical user interface support system, and realized embedded database SQLite application. successful developed MiniGUI soft keyboard module include of Chinese character input, measurement data management systems based on database, SPI driver for connecting angle sensor, GUI application program. So the whole system has many advantages as high accuracy, good reliability, good stability, easy use and field measurement. |
