Wang Ping\李永强2 (1. Department of Resources and Environmental Engineering, China University of Mining and Technology, Beijing 100083, China; 2. Department of Electrical Engineering, Tsinghua University, Beijing 100084, China) Explain some practical problems encountered during the development process and their solutions.

Up to 3 million tons, Huating Coal Mine has built high-yield, low-consumption, low 71994-2014C! LinaAcademic With the rapid development of industrial automation technology, monitoring software is changing with each passing day. In the domestic self-control project, there are two main methods for the implementation of the upper computer control system: 1 developers use visualbasic, visualC+ + and other tools to develop from the bottom, such as the No. 3 machine-controlled transmission of Yuanbaoshan Power Plant developed by Tsinghua University Electric Laboratory. The coal automatic control system is developed with visual C++; 4 is used for secondary development with industrial control configuration software. Currently, most engineering projects use this method. There are a lot of industrial control configuration software at home and abroad for users to choose from. Among them, foreign countries include: TOUCH of FIX series products of American Intellution Company, CI-TECTl2J of Australia Seat Company, WECON (4) of PPCSOFT Company, etc. The height of these (segments) is 12~15m, and the ratio of pick and place is 1: (4~ 5.8). The shearer cuts the knife into the cutting depth of 0.8m; the working surface is provided with 2 scraper conveyors, the front conveyor is displaced 15m away from the rear drum of the shearer, and the rear conveyor is pulled before the shifting; The stepping distance of the frame and the shearing machine is the same as that of the shearer; the top coal adopts two mining and one release, and the top coal is discharged from the bottom plate to the top plate in turn, and the coal discharging method is to use multiple holes for coal in the partition; The two can be carried out simultaneously to improve the efficiency of coal discharge. The horizontal stratified (segment) fully mechanized caving face of the steep and thick coal seam in Huating Coal Mine adopts measures such as coal mining at the end bracket, loose coal in the blasting, blasting and recovery of the side triangle “dead coal”, optimization of roadway layout, and rational allocation of mining equipment. According to the "one-two-face" model, the fully mechanized caving mining in steeply inclined thick seams has not been fired for 13 consecutive years, the resource recovery rate reached 86.7%, the death of millions of tons was zero, and the development time of the annual production capacity software was compared. Early, powerful, but expensive.

Domestic: Kingview and MCGS, etc. Although these softwares are developed late, they all draw on the advantages of monitoring software at home and abroad and adopt the most advanced software design ideas and technologies, which can be comparable in function to foreign software. And the price is only 1/3-1/8 of foreign software. From the characteristics of Kingview and the actual application of the author, it can be proved that Kingview is a very good industrial control software.

1.2 The configuration of the King 6 0 software package consists of four parts: the operating system (TouchView) and the information window. 1.3 Using the Kingview 6.0 to establish the general process of the application project to create a graphical picture. Users can create an unlimited number of images for each application, generating interrelated static or dynamic graphical objects on each screen. Kingview offers a wide range of drawing tools, as well as complex graphical objects such as buttons, real-time trend curves, historical trend curves, and alarm windows.

Construct a database. The database is the core part of the Kingview software and contains the current values ​​of all data variables when the TouchView is running. Variables are defined in the screen development system. Variable names and variable types are specified when defining. Some types of variables require additional information. A collection of data variables is called a /data dictionary."

Define an animation connection. Animated connection refers to establishing a relationship between the graphic object of the picture and the data variable of the database. When the value of the variable changes, it is represented by the animation effect of the graphic object on the screen; or the data is changed by the software user through the graphic object. The value of the variable. Kingview offers 21 animation connections. A graphic object can define multiple connections at the same time and combine them into complex effects to meet the needs of any animation display in practice.

Run and debug. In the real-time operating environment TouchView of Kingview software, run and debug the animated graphics screen created in the screen production system.

2 Circulating water pump PLC automatic control system composition This project is divided into two parts, namely the upper machine MMI part and the lower position machine PLC control part. Due to the special operation of the power plant water pump, the project needs a dual-system hot standby system. Through multi-party research and research, the main functions of the 3-cycle pump PLC automatic control system are selected. 31 The controllable equipment can be automatically controlled and controlled. The system can be used for 16 devices. Automatic control, including start and stop of various pumps and switching operations of various doors. The operation can be done with a mouse click. At the scene, the start-up of each device is limited by various complicated blocking conditions. In order to save points and reduce the difficulty, these are all completed in the PLC programming of the lower computer. In the configuration of the upper computer, only some simple judgments are made. The lower-level machine PLC 32 dynamically displays the status of the field device instrument in the host computer interface. The color of the device icon, the flashing state and the combination of the two can determine the various states of the device, including the device start-stop process, switch status. , various types of faults, etc. The details are as follows: open in place is red, closed in green, switch process is blue flash, open fault is red flash, off fault is green flash, other faults such as power off are yellow. The detection data of each device state is displayed in real time in the man-machine interface. In order to facilitate the operator's decision, real-time trend curves, historical trend curves, and real-time animations are set for some important variables.

33 Help system Because the on-site equipment starts and stops, there are many blocking conditions. When starting or stopping some equipment, it is often impossible to complete due to the blocking condition. In order to facilitate the operator to find out the reasons, the equipment operation help system was designed. For example, start the circulation pump operation, click the device icon, and the operation dialog box pops up. Then click the help button on the dialog box to pop up the help screen. All the lock conditions for starting the circulation pump are listed in the screen, and the blocking condition is Realtime. Because the blocking conditions are more complicated, a rectangular graph method is adopted. It is a help screen for the control unit No. 1 circulating pump in the control system.

The circulation pump start help screen is described as follows: In the help screen, there are two kinds of boxes, yellow and blue. The blocking condition (vertical column) in the yellow box is the relationship with the interlocking condition (horizontal row) in the blue box. Satisfaction and dissatisfaction are reflected by color. Satisfied as black, not satisfied as red.

In the middle, all the conditions in the 1st zone (yellow frame) must be satisfied, that is, the color of the character must be black. Zone 2 (blue foot, that is, at least one per horizontal row is not red. There are four small yellow frames in the fourth zone (blue). According to the regulations, as long as one small yellow frame meets the conditions.

In order to open the No. 1 circulation pump.

For the more complex control of the blocking condition, the method of the histogram is a very simple and practical method. With a rectangular chart, the operator can know if the device is operational in the shortest amount of time. Higher evaluation in field applications.

34 operator report and accident recall configuration King 60 database management function is stronger. In Kingview, there are two main ways to save data: 1 save the data to a file, and use the date as the file name; 4 dynamically save it to various databases through Windows ODBC, such as Microsoft's ACCESS, SQLSERVE, and ORACLE. The company's ORACLE and so on. Users can perform other operations on the data stored in these databases. The operator report can query the operator for any operation on the host computer for a certain period of time. The accident recall can query the detailed information of various alarms, equipment trips, analog overruns and other accidents that occur during system operation. In this project, this information is saved to Microsoft's ACCESS, and Kingview outputs the query results in the interface through the report.

4 Conclusion This article was formed during the actual project development process. After the system is put into operation, the effect is very good. Less than one month before and after the development of this project, this fully demonstrates that the application of excellent industrial control software can not only meet the requirements well, but also shorten the construction period and save manpower. The successful operation of the project is also another affirmation of the domestic software configuration king.

Metal Birquetting Press

Metal Birquetting Press,Manual Metal Baler,Manual Waste Metal Baler,Manual Metal Baling Press

Jiangyin Yimaisheng Hydraulic Machinery Co., Ltd. , https://www.ymsrecycling.com