Research And Design On The Electrical Technician's Digital Assistant

Electrical signal measurement, calculation, analysis and research are the main content that electrical technician to work. Of course, electrical technicians in the course of their work also need to regularly check electrical information for reference. Therefore, electrical technicians work is inseparable from the multimeter, oscilloscope and other measuring instruments, electrical engineering manuals and a calculator. The topics to study a set of multimeter, oscilloscope, electrical formulas and electrical information queries and other functions into one electrical technician digital assistants, in order to facilitate the work of electrical technicians to improve work efficiency.This article is part of the subject, the main research graphical user interface development and data storage, and ultimately the number of measured signals and the waveform display, as well as formulas and electrical information queries.System hardware ARM9-based.S3C2440 processor use and to expand NAND FLASH and NOR FLASH memory.Design of the LCD/touch screen driver and other driver interface circuit, such as the GPRS extension interface functions expansion.Transplant embedded Linux operating system, and transplant U-Boot for system initialization and operating system start-up; use MiniGUI develop graphical interfaces and applications, and use advanced embedded database technology to complete large amounts of data storage; the use of MiniGUI application to connect SQLite database, to achieve the system oscilloscope, multimeter, electrical formulas and electrical information queries implementation. Electricity formula already in the database module can call the formula, you can edit the formula and to maintain. Electrical Information Inquiry by the keyword and title inquiries.Traditional modular design method is used in the system.studies have shown that electrical technical personnel digital assistants to achieve a good formula and to facilitate the data query capabilities, very good completion of the design requirements. It have good market prospects, and to be the best staff assistant of the electrical technicians.Figure 15 Table 4 Reference 50...