In the industrial control, the star network has a central control unit, which is connected to the central host system by a plurality of terminal control processors, enabling centralized control. Its central controller as a site has the ability to process information and data transfers, that is, to perform processing functions or to convert information from one place to another. The surrounding sites usually use the polling interrupt method to apply for services to the central processor: it in turn asks each site around whether there is information to be sent. If so, the central station's communication control unit processes the device centrally until no information is sent or transferred to Handle on other devices. Advantages: Independent operation, failure of a single site, does not affect the information transmission and dialogue of other sites. Disadvantages: Poor reliability, the failure of the central control unit will become fatal, the connection and connection equipment are also more, the cost is expensive, and it is not as simple as expanding a new site. The tree-shaped hierarchical network is an extension of the star network, which has a central control unit and several sub-controllers. The lowermost part is some terminal equipment, and there is a relatively obvious hierarchical relationship between the processors. Usually, the lowermost processor performs the data collection function, the intermediate processor performs the data processing and control functions, and the high-level processor is based on The information provided by the subordinate processor performs comprehensive processing functions to make management decisions. Asphalt mixing plant is one of the key equipment for road construction. It is mainly used in the production of asphalt mixture for paving road surfaces. Asphalt mixing plant consists of a number of parts, including dosing system, dryer, agitator, dust removal system, fuel system and so on. Asphalt Mixing Plant,Mixer Plant,Asphalt Mixing Bitumen Equipment,Asphalt Paving Equipment BituRock Science & Technology (Jiangsu) CO., LTD , https://www.biturockequipment.com
The batching system is one of the core parts of Asphalt mixing plant. It is responsible for adding various raw materials to the blender in a certain proportion. These raw materials include asphalt, sand, gravel and other additives. The batching system usually consists of a weighing sensor, a batching bucket and a batching transfer device.
The dryer is another important part of the Asphalt mixing plant. It is mainly used for drying raw materials such as sand and stones. There are heating elements and rotating agitators inside the dryer, which can make the raw materials fully heated and mixed evenly.
Mixer is one of the core parts of Asphalt mixing station. It is responsible for mixing various raw materials together to produce a high quality asphalt mixture. The agitator usually consists of multiple mixing blades, which can fully mix the raw materials to ensure the stable quality of the asphalt mixture produced.
Dust removal system is one of the important components of Asphalt mixing plant. It is mainly used to collect dust and exhaust gases generated during the production process. The dust removal system is usually composed of multiple filters, which can effectively filter out dust and exhaust gas to ensure a clean working environment and air quality.
Fuel system is one of the key parts of Asphalt mixing plant. It is responsible for providing the fuel to power the Asphalt mixing plant. The fuel system usually consists of a fuel pump, a fuel filter and a fuel injector.
Asphalt mixing plant is a kind of high efficiency asphalt mixture production equipment, widely used in road construction field. It has the advantages of high automation, high production efficiency, stable product quality and so on, and provides a strong support and guarantee for road construction.
Analysis of Interrupt Mode in Star Network