Researching And Implementing The Key Technique Of Real-time Data Gateway Based On Linux

With the development of modern industry, more and more high degree of industrial automation, for data analysis instrumentation and industrial control has been widely used in modern industry. Data collected by way of manual meter reading has been unable to meet the industrial field data collection requirements. Fieldbus smart instruments appear based on a meter reading has brought great convenience, these smart instrumentation they use Modbus, Meterbus, DLT-645 and other protocol.The emergence of these instruments has spawned many automatic meter reading systems, automatic meter reading systems but these poor compatibility between protocols. In this era of big data, along with industrial field expansion of the scale and complexity of the degree of improvement, control and monitoring objects greatly increase the number of points, coupled with a number of instruments for data analysis needs to be real-time data, the existing monitoring and control system It has been unable to meet the increasingly complex needs. To be able to be compatible with different types of protocols, real-time data transmission, this paper proposes a multi-protocol data transmission and real-time industrial data acquisition gateway. Data acquisition gateway based on Samsung S3C2440A processor and Linux operating system research and design. Including a hardware architecture based on ARM9 processor,8 groups by ST16C554 extended serial port. Each group contains a serial RS-232 interface and an RS-485 interface. The gateway supports Modbus protocol, Meterbus agreement, DLT-645 intelligent instruments agreement.Firstly, on the subject of the use to the protocol and core technology for analysis, and accordingly to achieve a data gateway software architecture design and software architecture based on this, this paper gives some key technology research data gateway and implementation. Finally, the corresponding test data gateway, and the comparison and analysis of test results, from the results, this gateway achieve the correct data acquisition and real-time data reporting.