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The Industry 4.0 revolution broke out, and the sensor became the driving force behind the scenes!

2025-04-03

According to the latest report released by Transparency Market Research, a US market research organization, the global wearable sensor market will continue to grow at a compound annual growth rate of 45.2% by 2020. Yole Developpement also predicts that the demand for MEMS sensor products, an important part of sensors, has increased rapidly in recent years, with an average growth rate of 12%-13% since 2014. The MEMS sensor market is expected to reach US$30 billion in 2020.

Guide: The sensor is at the bottom of the entire Internet of Things system, the perception layer, which is the core technology and foundation of the Internet of Things. The arrival of the Internet of Everything era has injected "stimulants" into the sensor industry. Sensors are increasingly being applied to various fields of social development and human life, which can be described as "blooming everywhere."

OFweek Industrial Control Network News: The sensor is at the bottom of the entire Internet of Things system, that is, the perception layer, which is the core technology and foundation of the Internet of Things. The arrival of the Internet of Everything era has injected "stimulants" into the sensor industry. Sensors are increasingly being applied to various fields of social development and human life, which can be described as "blooming everywhere."

While my country's sensor industry is generally at the low-end level, we should face up to the challenges and actively promote industrial transformation and upgrading. Looking forward to the day when China's sensor industry will be among the best in the world.

The Internet of Things continues to evolve

Inject "stimulants" into the sensor industry

U.S./Japan/Germany dominates the sensor market

Statistics in 2014 showed that a few economically developed countries accounted for more than 70% of the sensor market. In the future, with the continuous economic growth of developing countries such as China, India, and Brazil, the demand for sensors will also increase significantly, and the market has huge development potential.

Global sensor market size

The global sensor market has maintained rapid growth. In 2011, affected by the global economic downturn, the growth rate of the sensor market declined. With the gradual recovery of the global market, the demand for sensors in the market continues to increase.

China's sensor market size

The overall quality of my country's sensor industry is uneven, the self-sufficiency rate of high-end products is insufficient, and small enterprises account for nearly 70%. The products are mainly low-end products, and high-end products mainly rely on imports.

Current status and future forecast of global MEMS market output value

In recent years, the global demand for MEMS sensor products has increased rapidly. In 2014, the MEMS sensor market exceeded 13 billion U.S. dollars, with an average growth rate of 12% to 13%. The MEMS sensor market is expected to reach 30 billion U.S. dollars in 2020.

Sensor applications "bloom everywhere"

Application of sensors in wearable devices

For example, wearable devices are equipped with various sensors to detect and measure heart rate, sweat, temperature, sleep, calories, GPS coordinates, blood pressure, UV ultraviolet rays, and glucose levels. This type of sensor equipment that has formed a market is currently mainly concentrated in three major areas:

Motion sensors, including accelerometers, gyroscopes, magnetometers, pressure sensors, etc.;

Biosensors, including blood glucose sensors, blood pressure sensors, ECG sensors, etc.;

Environmental sensors, including temperature and humidity sensors, gas sensors, PH sensors, etc.

Application of sensors in the automotive industry

As we all know, 90% of the innovation in the automotive industry comes from the innovation of automotive electronics. Automotive sensors are front-end systems for information collection and analysis. There are generally two types: one is body perception, including pressure, flow, acceleration sensors and gyroscopes, and the other is environmental perception, including lidar, millimeter wave radar, camera and infrared. Smart sensor equipment such as night vision. The following is a brief introduction to various sensors used in automobiles:

Water temperature sensor, used to detect engine coolant temperature (provide engine temperature signal);

Throttle position sensor, used to detect the throttle position of the engine (also used to provide engine load signal);

Knock sensor, used to detect whether the engine knocks;

The intake manifold absolute pressure sensor is used to detect the intake pressure in the intake pipe;

Air flow meter, used to detect the quality of intake air;

Accelerator pedal position sensor, used to detect the position of the accelerator pedal;

Wheel speed sensor, used to detect wheel speed;

Vehicle speed sensor, used to detect vehicle speed.

In addition, there are wind speed sensors, rain sensors, light intensity sensors, vehicle height sensors, fuel level sensors, fuel temperature sensors, oil pressure sensors, injector lift sensors, and so on.

Application of sensors in the field of industrial automation

In an automated production line, sensors are required to monitor each component and feed data back to the control center in order to intervene in time for abnormal nodes to ensure the normal progress of industrial production.

Application of sensor in bottle production line

In the machinery manufacturing industry, it is necessary to detect the static and dynamic parameters of the machine tool to control the processing quality; in the chemical industry, electric power and other industries, it is necessary to automatically detect the temperature, pressure, flow and other parameters in the production process at any time; it can be said that there are not many With excellent sensors, modern production has lost its foundation.

Application of sensors in the field of consumer electronics

Such as the application of sensors in mobile phones:

Gravity sensor has a nearly perfect expression in games such as Need for Speed, Tiantian Parkour, etc.;

Acceleration sensors, for example, the shake function of a mobile phone is to sense the acceleration of the mobile phone;

Light sensors, such as the automatic dimming function of mobile phones;

The distance sensor, for example, when the phone leaves the ear, the screen becomes brighter, and the screen becomes black when the phone is close to the ear.

There are countless sensors in mobile phones, and many functions are implemented using sensors.

Application of sensors in the field of smart home

Traditional sensors still have some limitations in the field of smart homes, such as the huge cost of networking. With the development and maturity of wireless sensor network technology, wireless sensor network products have begun to gradually replace traditional wired sensor products with their own unique advantages, and penetrate into all aspects of the smart home field, becoming an emerging hot spot in the market.

There are many other applications in other fields not to be introduced one by one!

The future development direction of the sensor industry

Miniaturization

The micro sensor is based on the MEMS (micro-electro mechanical systems) technology developed based on semiconductor integrated circuit technology. It uses micro-machining technology to package micron-level sensitive components, signal processors, and data processing devices on a chip. Obvious advantages such as small size, low cost, easy integration, etc., and can improve the accuracy of system testing.

Now it has begun to replace existing products with sensors based on MEMS technology. With the further development of microelectronics processing technology, especially nano processing technology, sensor technology will also evolve from micro sensors to nano sensors. The development and application of miniature sensors will be more and more favored by various fields.

Integrated

The advantages of integrated sensors are beyond the reach of traditional sensors. It is not just a simple sensor, it integrates the components in the auxiliary circuit and the sensing element on a chip, so that it has calibration, compensation, self-diagnosis and network communication. Features.

Intelligent

The intelligent sensor is a combination of one or more sensitive components, microprocessors, peripheral control and communication circuits, and intelligent software systems. It has functions such as monitoring, judgment, and information processing. Compared with traditional sensors, it has many features.

For example, it can determine the working status of the sensor and correct the measurement data to reduce errors caused by environmental factors such as temperature and humidity; it can use software to solve problems that are difficult to solve by hardware; it can complete data calculation and processing tasks. Moreover, the accuracy, range coverage, signal-to-noise ratio, intelligence level, remote maintainability, accuracy, stability, reliability and interchangeability of smart sensors are much higher than those of ordinary sensors.

Flexibility

In the 2.0 era of wearable devices, wearable computing and personal intelligence have become the design direction. But at present, wearable devices are more morphological changes. Whether it is product practicability, impact resistance, salt and water resistance, hygiene, etc., there is still a long way to go. One of the big constraints is the limitation of manufacturing materials.

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