Automation control systems mainly consist of: controllers, controlled objects, actuators, and transmitters.
Controller: It can change the wiring of the main circuit or control circuit and alter the resistance values in the circuit to control the motor’s start, speed regulation, braking, and reversing main command device in a predetermined order.
Controlled Object: Generally refers to the equipment or process being controlled, such as the control of reactors, distillation equipment, or processes like heat transfer and combustion. From a quantitative analysis and design perspective, the controlled object is merely a part of the factors affecting the input and output parameters of the controlled equipment or process, not the entirety of the equipment.
Actuator: Utilizes liquid, gas, electricity, or other energy sources and converts them into driving actions through motors, cylinders, or other devices.
Transmitter: Its role is to detect process parameters and transmit the measured values in a specific signal form for display and adjustment. In automatic detection and adjustment systems, it transforms various process parameters such as temperature, pressure, flow, liquid level, composition, etc., into unified standard signals, which are then sent to regulators and indicating recorders for adjustment, indication, and recording.
Three Major Development Directions of Automation Control Systems
1. Fieldbus Control Systems
Fieldbus Control Systems (FCS) are bidirectional serial, digital, multi-node communication networks connecting field intelligent devices and automation control devices. They are also known as field-level device control networks.
Currently, FCS based on fieldbus technology is developing rapidly, but there is still much work to be done in terms of standardization, instrument intelligence, etc. It can be determined that FCS, combined with new technologies such as DCS, industrial Ethernet, and advanced control, will possess strong vitality.
2. Industrial PC Control Systems
Due to the openness of PCs, which have rich hardware, software, and human resources, along with low costs, industrial control systems based on PCs (including embedded PCs) are growing at a rate of over 20% annually, making PC-based industrial control technology one of the mainstream technologies at the beginning of this century.
3. Integrated Intelligent Management and Control System
With the development of computer technology, communication technology, and control technology, the traditional control field is undergoing an unprecedented transformation, beginning to evolve towards networking. The demand for high-volume, high-speed transmission of large data such as images and voice signals has given rise to the current trend of combining Ethernet with control networks in the commercial sector.
This wave of networking in industrial control systems integrates various popular technologies today, such as embedded technology, multi-standard industrial control network interconnection, and wireless technology, thereby expanding the development space of the industrial control field and bringing new development opportunities.
(Source: This article is a reprint from OFWEEK. If there are any inappropriate parts in the text, please feel free to contact us, and we will make timely modifications.)
Friendly Reminder: To find more optical knowledge, you can click on the “Information Zone” in the public account menu bar under “Learn Theory”. Check if there are any learning materials you need.
Scan the following QR codes
to get more information about optoelectronic products
—If you like it, share it with your friends—
Click the “See” button at the bottom right to let more people see it!
Disclaimer: This article is written or reprinted to convey more information and contribute to the optoelectronic industry. If the text or images in the article inadvertently infringe your legal rights or contain inappropriate content, please contact the author within 20 working days, and we will coordinate to handle it. Friends are welcome to supervise the content on the public account and provide valuable opinions!
Contact email: [email protected], industry friends are welcome to invite us to write. Thank you.
