Enterprise equipment status monitoring and database management system

¡¡¡¡Project introduction:

¡¡¡¡In the process of modern industrial production and enterprise management, due to the characteristics of high environmental adaptability, high real-time and high reliability required by production process control, remote real-time monitoring system and large amount of data database management system have become an inevitable development trend. Based on the high-speed real-time data transmission and low cost of GPRS, its development and application in wireless monitoring has become a research hotspot in the industry. be based on. Net framework is the best way to solve the existing problems of large-scale production enterprises, such as large amount of data, complex data relations, lack of contact between independent departments and so on. The combination of the above two technologies will inevitably bring the level of enterprise production process monitoring and data management to a new level.

¡¡¡¡Technical background:

¡¡¡¡In the early stage, the research and development of equipment condition monitoring system and database management system of many enterprises have been completed, including "real-time monitoring and fault diagnosis system of production equipment", "cement production database management system", construction machinery group "comprehensive test system for operation of vibratory roller", mining bureau "real-time monitoring and protection system of coal mine belt conveying system", etc. The above systems use LAN and other means to transmit the data of different monitoring points to the general control computer, and use the distributed database to save and manage the data. Through the development of the above projects, we have mastered the basic implementation methods and system construction scheme for real-time monitoring and database management of the production process of large industrial enterprises.

¡¡¡¡System functions:

¡¡¡¡Through computer technology, network technology and multimedia technology, real-time information sharing of production process and equipment operation status of the whole plant is realized, At any allowed station, it can monitor the on-site operation status of each equipment (such as temperature, pressure, vibration, current, flow and other parameters) and the status of the whole production process (such as input, output, whether there are abnormal phenomena, etc.) in real time, and review the operation status of each production unit and unit in the previous period (a few hours, even a few days ago). In this way, through the real-time and continuous monitoring of the production process, the abnormal phenomena in the production process can be found in time, so as to provide decision-making basis for production management and dispatching command.

¡¡¡¡Its main functions are as follows:

¡¡¡¡1) Data acquisition: each data acquisition station automatically collects working condition parameters in real time from various conventional instruments, sensors and other field control equipment, and carries out standardized processing.

¡¡¡¡2) Data communication and storage: transmit the collected real-time data to the switchboard through network and other technologies, store it in the database, and transmit it to the monitoring client as needed.

¡¡¡¡3) Dispatching monitoring management: the monitoring end user can realize the rapid query and configuration of various monitoring images through a good man-machine interface.

¡¡¡¡4) Monitoring of real-time data: monitor real-time data with flow chart, instrument indicator bar diagram, alarm indication, real-time curve, data list and other display screens. Display historical data and statistics in the form of historical trend chart, record report, etc.

¡¡¡¡5) Production report management: it has the processing functions of daily report, weekly report, ten day report and monthly report. Data sources include automatically collected data and manually input data.

¡¡¡¡6) Fault monitoring and alarm: when the collected value of some points exceeds the normal range of parameters, the monitoring system should make an alarm response in time and inform the monitor to take measures to eliminate the fault in time.

¡¡¡¡In addition, other management information system functions can be added to the above basic functions, such as input-output analysis, optimization control and production management. Technical requirements and features:

¡¡¡¡1) High real-time performance and good time certainty are required;

¡¡¡¡2) Most of the transmitted messages are short messages, and the information exchange is frequent;

¡¡¡¡3) Strong fault tolerance, good reliability and safety; 4) The network structure is scattered (the monitoring points and collection points are located in every corner of the whole plant)