Double-computer synchronized control system

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The HZS and HLS series concrete mixing station (building) made by the Fujian South Highway Machinery Co., Ltdadopt double-computer synchronized control system, of which the main hardware consists of two operation-control computers, a high performance programming logic controller (PLC),smart human-machine interface, high-speed & high-precision weighing unit and worldwide famous low-voltage electrical appliances (such as Schneider, ABB, Omron, MITSUBISHI).

1. Brief introduction
The HZS and HLS series concrete mixing station (building) made by the Fujian South Highway Machinery Co., Ltdadopt double-computer synchronized control system, of which the main hardware consists of two operation-control computers, a high performance programming logic controller (PLC),smart human-machine interface, high-speed & high-precision weighing unit and worldwide famous low-voltage electrical appliances (such as Schneider, ABB, Omron, MITSUBISHI). This system is integrated with this Company's self-designed control software and can achieve automatic control of concrete production process.

2. Characteristics
1.Advanced Double-Computer SynchronizedControl:
Investigations into the malfunction rate of concrete mixing station computer-control system reveals that the NO1. is computer problem. Once a malfunction occurs, the computers will halt operation and production will cease. The double-computer synchronizing control system has two computers which can control and manage the entire production process both independently or simultaneously. If one of the two computers malfunctions, the other one can automatically take control. Thus the system can maintain its control over the production process without the need for manual intervention.Thisimprovement drastically reduces computer-caused production suspension possibility to minimum.

2. High Performance Hardware Configuration Ensures Stable and Reliable Control
1) ADLINK industrial computers
2) MITSUBISHI PLChas excellent performance and a long life-span: it has super-high operating speed, the basic command is 0.08μs,MTBF(Mean Time Between Failure)is as high as 300,000 hours.
3) MITSUBISHI human-machine interface: English language version with wide visual angle, quick response rate and high performance.
4) MITSUBISHI AD Module high- speed conversion rate of 500μs, resolution is as high as 1/20000
5) Key low-voltage electrical appliances are allof world famous brands such as Schneider, ABB, Omron, etc.

3.Perfect Controlling Functions
1) A password is required for logging in to this software and calibrating the electronic scale. This effectively guarantees the security of important production data
2) The 3D interface uses animations to simulate the production status. It can display production datasuch as raw material values, weights and errors in real time.
3) It's allowed to arrange production tasks in advance and reset their sequence.
4) It may allocate output per batch automatically according to the overall output of production task and the mixing drum's capacity.
5) It can conduct self-diagnostic and provide users with hints.On-line help is also available
6) Functions available include falling error auto-calibration, trend estimation and negative-value auto-calibration as well as zero position auto-tracing and push-button tare-deduction.
7) Auto weight compensation or deduction will be conducted if the weight is lower or higher than required. The limit for measuring or unloading materials can be adjusted individually.
8) There is a window to alter the water rate contained in the aggregate so as to facilitate addition of sand and (or) reduction of water.
9) Water weighing can be paused at any moment and water formula adjustment is also available.
10) An invoice-loading service is available so that users may set up the invoice's layout design with office software and download it(can be used directly) into the control system
11)The control system is fitted with a data managementsub-system, which allows operator to carry out enquiry, view and print of relevant data.


4. User-Friendly and Easy to Maintain:
1) Auto, semi-auto and manual operation modes are available to make it easy to control the production process
2) Intelligent parameter setting makes it possible to set up all of the operation experience parameters with a push of one button
3) Users may customize the production procedures, mixing time and unloading order according to their production needsand usage habits
4) The mixing drum's discharge gate may be controlled automatically by the system, switching its position between closed, half-open and fully-open. Manual operation for gate positioning is easy, flexible and convenient
5) The equipment's production status can be comprehensively detected in real time and safety interlock controlcan be conducted. If something abnormal occurs, the system can point out the location of malfunction and prompt the operators to perform checks and repairs, thusthe location of the malfunction can beidentified and it can be eliminated.
6) Traditionally it applies industrial computer to carry out process control, however due to software and hardware problems, once fault occurs it's hard for average computer maintenance technician to deal with, which causes a lot of head ache to customers. NFLG has made great progress in development ofelectronics, so that it's feasible to replace industrial computer with general one. This adaptation makes convenient for customers to maintain and update control system, eliminating lots of potential trouble.


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Q:Other Xuzhou Construction Machellonery Group Inc related
Learned from the Xugong Group, Xugong Group in 2010 operating income exceeded 66 billion yuan, an increase of more than 30%, to achieve profit growth of more than 50%, to achieve a sound and rapid development of the construction machinery industry, keep the leading position for 22 consecutive years.
Q:To ask, I have better supply of construction machinery here, I would like to foreign trade, I do not know how the international market in the near future, engineering machinery, foreign trade to prepare what knowledge?
Unexpected debt crisis in Europe is likely to enter the global financial crisis of second act "-- before the international financial predators Soros made such a point of view. For the Chinese enterprises, the export situation in the coming months seems to be very dense. Construction machinery industry exports suffered a severe blow in the financial crisis. In 2010, the export situation is still the key factor restricting the growth of the industry.
Q:How to write the summer practice report of construction machinery?
It can be attributed to the development trend of < > "four": flexible, agile, intelligent and information needs. Even if the process equipment and process route for the production of a variety of products, can be used to quickly replace technology, need to replace the product, so that the harmonious environment and the flexibility of the production to the market the shortest time and makes the enterprise agile manufacturing flexible manufacturing process, and the material consumption, human consumption is greatly reduced, high automation and intelligence in the pursuit of the combination and the main machine can only make information by means of material and energy power production value information.
Q:What are the major of Engineering Machinery College of Chang'an University?
Chang'an University School of mechanical engineering, the former Xi'an Highway University Department of mechanical engineering, road construction machinery department, Northwestern Institute of Architectural Engineering Department of mechanical and Electrical Engineering (part), the Xi'an Department of transportation road construction machinery testing center in December 29, 2004 through the merger.
Q:Machinery manufacturing industry can be subdivided into those sectors
The mechanical manufacturing industry can "segment": the special equipment industry, plastic machinery, injection molding machine | @, | | plastic film blowing machine calender | hollow blow molding machine, plastic molding machine | | plastic granulator | plastic extruder | auxiliary machine | other plastic machinery | feeding equipment | regeneration crusher | foam film drawing machine
Q:Bachelor degree in mechanical engineering. How about Liu Gong in Guangxi?
Five social insurance and one housing fund, in general, is not high, but also according to the level of pay, if you are just in general is assistant, and Liugong no accommodation (bidding agency), and the school recruit live a month, other subsidies to 250 fast, quite low, now the construction machinery industry downturn downturn, treatment is not good.
Q:What is the difference between the blue shaft and the black shaft of the mechanical keyboard?
The black axis is good for games like Starcraft 2 and dota. The red axis is suitable for playing CS like fps. As for keyboard backlighting, I don't know anything about it.
Q:What are the total cost of the project?
Direct costs include direct project costs (labor costs, material costs, construction machinery costs) and measures fee (environmental protection fees, civilized construction costs, safe construction fees, temporary facility fee, night construction fee, two handling fee, large machinery and equipment import and field installation, concrete reinforced concrete template and support fee scaffolding fee, finished project and equipment protection fees, construction fees) precipitation drainage.
Q:How do the fixed assets in accounting distinguish between (machinery and other production equipment) and equipment (tools and tools) related to production and operation activities?
According to the Ministry of finance tax administration and the State Administration of taxation income tax division, the State Council Legislative Affairs Office of the Finance Secretary interpretation and practical guide "and" implementation rules of the enterprise income tax law interpretation, instruments, tools, furniture and other related production and business activities, the minimum depreciation period of 5 years: this kind of fixed assets, except machinery, machine and other production equipment, but related to production and business activities, which is not directly the production tools, but to play instruments, tools, furniture and other auxiliary role in the process of production and operation, their service life is relatively short, the lower the depreciation period of 5 years.
Q:Do you have a promising future in the foreign trade of machinery industry?
Mechanical trade is very difficult to do, is the first mechanical product varieties and specifications is very complex, followed by the initial negotiation cycle of most large mechanical products is very long, so need comprehensive quality of participants is too high, it is generally difficult to do, or even into the machinery industry quickly back out.

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