5A26458G05 DCS Distributed control system
DCS Distributed control system, by a number of computers control a number of control loops in the production process, but also centralized data acquisition, centralized management and centralized control of the automatic control system. The distributed control system uses a microprocessor to control each circuit, and uses a small and medium-sized industrial control computer or a high-performance microprocessor to implement the upper level of control. Information is exchanged between the loops and between the upper and lower levels through high-speed data channels. The distributed control system has the functions of data acquisition, direct digital control, man-machine interaction, monitoring and management. Distributed control system is developed on the basis of computer supervisory control system, direct digital control system and computer multi-level control system. It is a relatively perfect control and management system for production process. In the distributed control system, the microprocessor is installed near the measuring device and the control actuator according to the region, so that the control function is dispersed as much as possible and the management function is relatively centralized. This decentralized control method can improve the reliability of control, and will not cause the whole system to lose control due to computer failure. When the management level fails, the process control level (control loop) still has independent control ability, and the failure of individual control loop will not affect the overall situation. Compared with computer multilevel control systems, distributed control systems are more flexible in structure, more reasonable in layout and lower in cost.
Principle and selection of acceleration sensor
5A26458G05
Acceleration sensor is an electronic device that can measure acceleration force. Acceleration force is when the object in the acceleration process of the force on the object, just like the earth’s gravity, that is, gravity, the following small series for you to introduce the acceleration sensor principle and selection in detail. From China Sensor Trading Network
Where is the acceleration sensor generally used?
By measuring the acceleration due to gravity, you can calculate the tilt of the device relative to the horizontal plane. By analyzing the dynamic acceleration, you can analyze how the device moves. But at first, you’ll find that measuring inclination and acceleration with light doesn’t seem very useful. But now engineers have come up with many ways to get more useful information.
Acceleration sensors can help your robot understand its current environment. Are you climbing a mountain? Or was he going downhill? Did he fall? Or for flying robots, it’s also crucial for attitude control. Make sure your robot doesn’t go into a crowded area with a bomb on its own. A good programmer can use acceleration sensors to answer all of the above questions. Acceleration sensors can even be used to analyze engine vibrations.