Generally speaking, industrial computers are computers specially designed for industrial sites. The environment of industrial computers is harsh. Some good brand computers can indeed run in the same environment, and may be stable, but they cannot guarantee stable operation for a long time. Many industrial computers It is working in no man's land, no errors are allowed, stability is higher than performance. Industrial computer is different from ordinary business computer in the materials of electronic components, and it is also a cost difference. The market is also different. The interface requirements of industrial computers have already been eliminated on home computers, while industrial computers are in demand and beyond the norm. The system architecture is not all the same, but the industrial computer has made some special designs to maintain its hardware interchangeability with ordinary commercial computers.
Industrial computer is in reliability, stability, weather resistance, shock resistance, waterproof and dustproof. Anti-interference, scalability, EC compatibility and other aspects are definitely better than commercial machines. Most of the components are industrial grade or even military grade, so as to adapt to the requirements of the industrial field environment. Industrial sites generally have strong vibrations, particularly dust, and high electromagnetic field interference. Generally, factories operate continuously, that is, there is generally no rest during the year. Therefore, the industrial computer must have the following characteristics compared with the ordinary computer: The chassis adopts a steel structure and has a higher ability of anti-magnetic, dust-proof and shock-proof. 2) There is a dedicated backplane in the chassis, and there are pci and ISA slots on the backplane. 3) There is a special power supply in the chassis, and the power supply has strong anti-interference ability. 4) It is required to have the ability to work continuously for a long time. 5) Generally, a standard case that is easy to install is used (4U standard case is more common). From the above characteristics of embedded industrial computers, we can see that the market potential of industrial computers is quite huge. The data collection work done by the embedded industrial computer is the most front-end application of the Internet of Things, but most of the current users only apply this information to a small-scale monitoring and control, without expanding its wider application, and now relying on the Internet Such a powerful basic platform can process this information through calculation and optimization, making the embedded industrial computer suitable for broader understanding.
Compared with general-purpose computers, the main features of industrial computers are as follows: High reliability. Industrial computer is often used to control the continuous production process. It is not allowed to shut down for maintenance during operation. Failure will cause quality accidents and even production accidents. Therefore, the industrial computer is required to have high reliability, low failure rate and short maintenance time. Good real-time performance. The industrial computer must respond to the changes of various parameters of the controlled object in real time, in order to control and monitor the production process in real time. When the process parameters have deviations or failures, it can respond in real time and give real-time alarms and processing. Usually the industrial computer is equipped with a real-time multitasking operating system and interrupt system. Strong environmental adaptability.
Due to the harsh environment of the industrial site, the industrial computer is required to have a strong environmental adaptability, such as high requirements for the temperature/humidity range: dustproof, anti-corrosion, anti-vibration and shock ability: good electromagnetic compatibility and high resistance Interference ability and high common mode rejection ability. Rich input and output templates. Industrial PCs are matched with process instruments to deal with various signals and require a wealth of multi-functional input and output matching templates, such as analog, digital, and pulse input and output templates. The system has good scalability and openness. Flexible system expandability is conducive to the improvement of factory automation level and the continuous expansion of control scale. Open system structure is adopted, which is convenient for system expansion, software upgrade and exchange.
The industrial computer control software package has strong functions, convenient interpersonal interaction, rich pictures, and good real-time performance: with system configuration and system generation functions: with real-time and historical trend recording in reality function: with real-time and historical trend recording and display Function: It has functions such as real-time alarm and accident recall; it has rich control algorithms. The communication function of the system is strong, and it is generally required that the industrial control computer can be turned into a large-scale computer control system, with long-range communication function. In order to meet the real-time requirements, the communication network speed of the industrial control computer must be high and comply with the international standard communication protocol. Redundancy. In occasions with high reliability requirements, dual-computer operation and redundant systems are required, including dual control stations, dual operating stations, dual-network communication, dual power supply systems, dual power supplies, etc., with dual-computer switching function and dual-computer monitoring Software, etc. to ensure the long-term uninterrupted work of the system.