Research On Remote Measurement And Control System And Key Technologies Based On Mobile Platform

With the increasing demand for measuring instruments in today's society,a remote measurement and control system based on a mobile platform is designed so that mobile users can remotely measure and control measurement instruments,which is in line with the trend of intelligent,mobile and remote measurement today.Instrument modules,server modules,and mobile application software modules,these three modules together constitute the framework of the entire system.Among them,the server module and mobile software are the focus of the development of the entire system.For the development of server modules,this paper compares a variety of network communication I/O models,and selects the IOCP network communication model that is suitable for the server.By IOCP model,the server can implement high-concurrent client connections,and greatly improve the efficiency of data transmission and reception.In the server based on IOCP model,this paper specifically designed the oscilloscope dynamic numbering logic,and realized the function of receiving data analysis and data forwarding.For the development of mobile software,this paper designs the interface of the application software.The specific interface involves the mobile user registration login interface,virtual oscilloscope interface and instrument management interface.At the same time,this paper also implements the mobile terminal's waveform data storage and playback and network communication functions.Considering the entire remote measurement and control network communication,this paper is based on the TCP/IP protocol specification.It implements short TCP connections at the transport layer of the layered model,and uses custom protocols at the application layer to ensure full data transmission and reception,while also ensuring the correct interpretation of the received data.In order to get rid of the limitations of LAN coverage and ensure the security of network transmission data,this paper will set up the server in the system framework to the public network and encrypt the transmitted data,so that we can use the ubiquitous Internet network to make customers connect the server anytime and anywhere safely.After debugging and functional verification,mobile users can use the mobile application software to remotely monitor and control the oscilloscope anytime and anywhere safely.The entire system works stably and truly realizes the mobilization and remoteness of measurement.