| With the improvement of industrial production information level,real-time data acquisition,display,analysis and storage of mobile Internet technology play an increasingly important role in the field of industrial production automation.In the production process of the steel mill,in order to facilitate remote monitoring and data sharing of the furnace state and billet temperature,to understand the temperature,process parameters and real-time billet drawings in the billet production process,the demand for developing a mobile client sharing platform was proposed.The shared platform includes the client and the server.The server uses the Lenovo host with Microsoft Windows Server operating system as the hardware server,and the IIS server acts as the software server.The FTP service is enabled on the IIS server to store the file data required by the client.The mobile client uses the FTP protocol to obtain,parse,and modularize the file information stored in the IIS server according to the agreed data format,thereby realizing remote data sharing.At present,the mainstream C/S architecture development methods are diverse,such as the web service server based on the soap protocol,using xml as the carrier of data transmission,or the web server based on the HTTP protocol,using json as the carrier of data transmission.These mainstream frameworks need to be on the client side.On the basis of the code,the output interface is contracted one by one,and the data required by the client is organized according to the standard xml/json format,and sent to the client through the network.The client accepts the data returned by the server and parses it,and includes xml/json.The data is extracted for analysis and display,thus increasing the amount of development work.Remotely obtaining files in the IIS server based on the FTP protocol reduces the writing of the server-side interface code and reduces the workload of the developer.At the same time,an FTP server can provide connections and services for multiple client processes,and solve the multi-client process.In order to access the high concurrency requirements of the server,the FTP protocol has a faster transmission speed and a larger amount of data transmission than other protocols in the transmission of steel mill production data.The core of client-side and server-side data sharing is the data request and response based on the FTP protocol.The client sends a data request through the FTP protocol.The server accepts the client's request and returns the data to the client according to the requested content.The client follows the contract.The data format parses the returned data,parses the downloaded file data into temperature and picture data,analyzes the temperature information,and draws a temperature uniformity curve diagram,etc.,and the user can obtain by clicking,touching,pulling down or sliding.,refresh and load temperature data and billet images.The development of the mobile client mainly realizes real-time data sharing of the temperature of the billet in the heating section and the soaking section of the heating furnace and the parameters of the industrial control system,historical data query and real-time video monitoring of the streaming media,and the billet temperature data of interest to the steel mill,The process parameter data,furnace pressure,preheating temperature and oxygen content are analyzed and displayed,and the unintuitive image information is converted into intuitive temperature data,which provides a data reference for the operator to judge the production quality of the billet,and reduces With the workload of the operator,the staff can obtain the billet production data through the mobile app at any time and space,and inquire about the historical production of the billet. |