What are the inspection methods for industrial computer interference? According to the reasons for the occurrence of industrial computer failures, the failures can be divided into five categories:
Classes, software become obstacles
Including improper configuration of the customer's application software, operating system failure or damage, and viruses, the probability of such failure detection should be the highest among all failures.
The second category, the use situation becomes an obstacle
If the power supply is not stable, electromagnetic interference, the temperature of the working environment is too high or too low, or even lightning strikes are found, it is found that such obstacles can either improve the working environment, or improve the product defense and working quality.
The third category, normal aging becomes a hindrance
With the upgrading of electronic technology, mechanical technology and electrical technology, especially many industrial computers today adopt the cable-free design method, and all functions and interfaces are simply onboard on the motherboard, which will cause problems due to normal aging. Fewer and fewer.
Category 4, electrical continuous disturbance
Since the task of the industrial computer is to adapt to various complicated working conditions, there is inevitably a lot of dust and tremors at the application site. This kind of failure is not easy to verify, and it is often easy to find failures on the site of current users, but once it is returned to the factory for inspection, it is normal operation. Such signs have also seen great changes with plans such as no-cable.
The fifth category, the salary component becomes a hindrance
It mainly refers to the fact that the use of faulty methods becomes an obstacle due to the lack of familiarity with the characteristics of industrial computer products at the application site. For example, industrial tablet computers generally use resistive touch screens, but users who are accustomed to capacitive screens do not inquire about the touch methods of resistive screens. The touch screen is broken.
The editor for the inspection of industrial computer problems hereby recommends that friends follow five principles: software first, hardware first, external then internal, power supply first, components first, common first and then special, simple first and then complicated.
What characteristics should an industrial computer have?
1. The process input/output matching is better
The industrial control secret has rich and multi-function process input/output matching templates, such as analog quantity, switch quantity, frequency quantity and other input/output templates. It has various types of lamp recuperation functions, such as isolating and non-disconnecting lamp adjustment; various hot couple, thermal resistance lamp input adjustment, voltage and current lamp input/output lamp recuperation, etc.
2. High reliability
The industrial computer is usually used to control the uninterrupted manufacturing process, and it is not allowed to stop the inspection during the operation period. Once an obstacle occurs, it will lead to quality problems and even manufacturing problems. Therefore, the high reliability of the industrial computer is required to ensure that the balance without interruption (MTBF) reaches tens of thousands of hours, and at the same time, the shrinkage interruption repair time (MTTR) is required to achieve a higher operating efficiency.
3. Good real-time performance
The industrial computer controls and monitors the manufacturing process in real time, so it is required to control the changes of various parameters of the tool accordingly in real time. When errors or obstacles are found in the process parameters, the industrial control function responds in real time, and can effectively issue alarms and actions.
4. Strong adaptability to the situation
The industrial scene is complicated and the electromagnetic interference is tense. The power supply system is often disturbed by the start and stop of heavy-load buildings. The grounding system is complicated, and the common mode and series mode interference is large. Therefore, the industrial computer is required to have strong environmental adaptability, such as high requirements for temperature and humidity changes; it must have the ability to prevent dust, moisture, and vibration; it must have good electromagnetic compatibility and high anti-interference ability and The ability to suppress high common mode.
Products such as industrial touch monitors, industrial computers, embedded industrial computers, etc. are all available in Qingdao Henryda.
