Solution

The field of industrial control relies on advanced electronic components to achieve automated monitoring, control and optimization of industrial production processes, and is widely applied in key areas such as manufacturing, energy, transportation and environmental protection. Its core requirements focus on high reliability, anti-interference ability, long life cycle and precise control capability. Electronic components play a key role as the "nerve center" and "perception execution unit" in such scenarios.

Core application scenarios

Intelligent manufacturing and factory automation

It is used for motion control, logic control and status monitoring of CNC machine tools, robots (industrial mechanical arms, AGVs), and automated production lines.

Typical components:

Control devices: MCU, DSP, FPGA (for implementing motion trajectory planning and PID control algorithm);

Sensors: Encoders, current sensors, temperature sensors (providing real-time feedback on mechanical position, speed, load and other parameters);

Actuating devices: Power semiconductors (IGBT, MOSFET), relays (driving motors, solenoid valves and other actuating mechanisms).

Process control and instrumentation

It is applicable to process monitoring in industries such as chemical engineering, metallurgy, and power, such as liquid level/pressure/flow control and adjustment of chemical reaction parameters.

Typical components:

Analog devices: operational amplifiers, data acquisition chips (ADC/DAC), isolation amplifiers (to ensure precise signal acquisition and anti-interference transmission);

Interface chips: RS-485/RS-232 transceiver, CAN bus chip (for building industrial communication networks);

Power management: DC-DC converter, LDO regulator (providing stable power for on-site instruments).

Energy and Power Automation

It is applied to smart grids, substation monitoring, and control of renewable energy (photovoltaic/wind power) converters.

Typical components:

Power devices: SiC MOSFET, IGBT modules (enhancing electrical energy conversion efficiency and power density);

Protective devices: TVS diode, fuse (overvoltage/overcurrent protection);

Clock and timing chip: High-precision crystal oscillator, real-time clock (RTC) (ensuring system time synchronization and event recording).

Building and environmental control

Covering HVAC (heating, Ventilation and Air Conditioning), lighting systems, fire alarm and environmental monitoring (temperature, humidity, gas concentration) for smart buildings.

Typical components:

Sensors: Temperature and humidity sensors, infrared sensors, gas sensors (environmental data acquisition);

Wireless communication module: Zigbee, LoRa chips (for building low-power local area networks);

Relays and contactors: Enable remote control of motor start and stop, as well as valve opening and closing.

Rail transit and industrial vehicles

Electrical control systems for train traction control, on-board electronic equipment, and construction machinery equipment.

Typical components:

Automotive-grade chips: high-temperature and vibration-resistant MCUS, power supply chips (suitable for harsh environments);

Magnetic devices: Inductors, transformers (power conversion and electromagnetic compatibility design);

Connector: Highly reliable connector (ensuring stable transmission of signals and power).

The core requirements of industrial control for electronic components

High reliability: Supports wide-temperature operation ranging from -40 ℃ to 105℃, resistant to vibration and shock, and meets industrial-grade certifications (such as EC-Q100, ISO 16750);

Long life cycle: The supply cycle of components is long (usually ≥10 years), meeting the long-term maintenance requirements of industrial equipment;

Real-time performance and accuracy: Low-latency control chips, high-speed data transmission interfaces (such as EtherCAT, PROFINET);

Safety and compliance: Complies with functional safety standards (such as IEC 61508), and supports redundant design and fault diagnosis.

Technology trend

Intelligence and networking: Edge computing chips and industrial Internet of Things (IIoT) sensors drive "device interconnection" and predictive maintenance.

Green energy conservation: High-efficiency power devices (such as GaN, SiC) help industrial equipment reduce energy consumption;

Miniaturization and integration: System-on-chip (SoC) and modular design (such as the PLCopen motion control module) simplify the system architecture;

Domestic substitution: High-performance MCUS, FPgas and other products developed domestically are gradually meeting the demands of industrial control for self-reliance and controllability.

Selection suggestions

According to the requirements of different scenarios, priority can be given to the environmental adaptability (temperature, humidity, electromagnetic compatibility), interface compatibility (protocol matching) and supply chain stability of components, and the scheme design can be carried out in combination with industry standards (such as the IEC 61131-3 programming specification for industrial automation).