Device for realizing real-time updating of database and data real-time updating method in boiler control based on OPC (OLE for Process Control) server

A real-time update and boiler control technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., to achieve the effects of reducing system delay, concise real-time performance, and simple structure

Active Publication Date: 2014-06-11
宁波智能装备研究院有限公司
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to solve the problem of fast storage of real-time database data of an OPC server in boiler control, and to provide a device and method for real-time data update based on an OPC server-based real-time database in boiler control

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Device for realizing real-time updating of database and data real-time updating method in boiler control based on OPC (OLE for Process Control) server
  • Device for realizing real-time updating of database and data real-time updating method in boiler control based on OPC (OLE for Process Control) server
  • Device for realizing real-time updating of database and data real-time updating method in boiler control based on OPC (OLE for Process Control) server

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0051] Specific implementation mode 1: the following combination figure 1 Describe this embodiment.

[0052] The real-time database based on OPC server in boiler control is a device for real-time data update, which includes the upper computer 1, the real-time database 2 with built-in OPC server and multiple lower computers 3;

[0053] The upper computer 1 and the real-time database 2 with the built-in OPC server are connected through an OPC interface, and the real-time database 2 with the built-in OPC server is connected with multiple lower computers 3 through a communication bus.

specific Embodiment approach 2

[0054] Specific implementation manner 2: the following combination figure 1 This embodiment is described, which is a further description of the first embodiment.

[0055] The real-time database based on the OPC server in boiler control is a device for real-time data updating. The data transmitted by each lower computer 3 to the real-time database 2 with the built-in OPC server includes the read and write flag bits, the CRC check bit, and the address bits of the lower computer 3 And the data value information of the lower computer 3.

specific Embodiment approach 3

[0056] Specific implementation manner three: the following combination figure 1 This embodiment is described, which is a further description of the first embodiment.

[0057] A real-time data update device based on the OPC server in the boiler control, the data bus 4 is a serial RS485 communication bus.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a device for realizing real-time updating of a database and a data real-time updating method in boiler control based on an OPC (OLE for Process Control) server, aiming to solve a problem of quick data storage of a real-time data of the OPC server in boiler control and relating to a data controll method. The device provided by the invention comprises an upper computer, a real-time database with an internal OPC server and multiple lower computers; the upper computer is connected with the real-time database of the internal OPC server through an OPC interface; and the real-time database of the internal OPC server is connected with multiple lower computers through a communication bus. According to the device provided by the invention, the data real-time updating method comprises steps that 1, firstly, a temporary table Tmp table is established for each lower computer by the real-time database of the internal OPC server according to a communication address; 2, the real-time database stores data at previous time by a map table; and 3, quick data insertion and OPC server data updating of the real-time database are processed. The device and the data real-time updating method disclosed by the invention are used for real-time data control in the boiler control.

Description

Technical field [0001] The invention relates to a data control method. Background technique [0002] Real-time database is to solve the data sharing between the data storage and the upper computer software in the industrial production process. Its main feature is fast storage speed and emphasizes the time consistency of data. [0003] Since real-time databases store data in memory, the storage speed is about 100 times or even higher than traditional databases. In this way, the data transmitted from the lower computer can be quickly stored in the industrial production without causing data loss. Each data in a real-time database has strict time characteristics, which can be accurate to the ms level, which traditional databases cannot. [0004] Data consistency means that each operation has a strict time limit, and there are complete process calls in the database to ensure the time characteristics of data storage and access. However, it is impossible to predict when various operatio...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & AuthorityPatents(China)
IPC IPC(8): G06F17/30H04L29/06
Inventor钟贤德王庆领孙一勇王光高会军
Owner宁波智能装备研究院有限公司