Advanced Research In Technology. Paperless Recorder And Implementation

Non-paper recording instruments are very important tools for industrial process tracing. Traditional recording instruments are inefficient and uneconomical because of working in a simulative, mechanical, paper-based way. With the development of microelectronic technology, digital recording instruments appear in the recent years. They use microprocessor as central processing unit, communicate with each other by transferring digital signals and target at network environment applications.The interactive and visual graphic interfaces, data compression and network building are illustrated in this paper. The interactive and visual graphic interfaces software are made up of two parts: the interactive interfaces and the visual graphic interfaces. The first part provides a interactive interface by which users can operate the instruments. The second one displays the real-time data captured by the instruments. In the part of data compression, we divide the instrument data to one dimension data and two dimension data. We use Prediction Coding and Transform Coding to compress one dimension data, and use Run-Length Algorithm to compress two dimension data. In the part of net working building, RS485 bus is used to connect several instruments, and RS232 is used to connect the computer to 485 bus, then the whole system connection is realized.The technology we researched in this item has been used in the new series none-paper recording instruments.