The Design and Realization of Display Module of Automatic Meter Reading System
Abstract
In recent years, China's demand for electricity continues to grow, and increasingly in short supply. To ensure network security, the right to commercial operation, we must have a precise measurement, powerful automatic meter reading system. Automatic meter reading system will save a lot of time and manpower, efficient and accurate transmission of information, reduces manual meter reading errors, improve efficiency.
Data Collection Terminal is divided into meter reading module, data module, control module, remote upgrade module and so on. This paper introduces the meter collection system design framework, and proposes a design scheme of meter display module by comparing the existing embedded GUI. It then presents two foundational prerequisites: the framebuffer LCD driver and special keypad device driver with the ARM9 hardware platform and the embedded Linux software platform. Finally on this basis, we achieve a suitable acquisition interrupted meter industrial applications, graphical user interface.
Key words: Embedded Linux;framebuffer;Linux Device Driver;Graphical User Interface