On September 15, the 8th China (Shanghai) International Sensor Technology and Application Exhibition came to a successful conclusion. The exhibition attracted more than 400 domestic and foreign companies in the field of sensing, more than 100 professional sensing application units, and more than 500 sensor experts. Celebrities participated, and the number of visitors to the exhibition reached 30,000. As one of the three major sensor exhibitions in the world, the exhibition is also known as the wind vane for the development of the global sensor industry, and intelligence has become the theme of this sensor. The 8th Intelligent Environment Sensing Innovation Technology and Application Development Forum held at the same time as the exhibition also attracted much attention. Liu Jiangang, deputy director of the Sensor Research Institute of Hanwei Technology Group, delivered a keynote speech on "Development and Application of Intelligent Environment Sensors" at the forum, giving a comprehensive explanation The development trend of smart sensors.
Liu Jiangang said that the market size of my country's smart sensors has increased from 98.2 billion yuan in 2014 to 295.1 billion yuan in 2021, with rapid development momentum. At the same time, my country's smart sensor industry ecology is gradually becoming more complete, with key enterprises in design, manufacturing, packaging and testing and other key links. Among them, it has reached international leading levels in the automotive field, laser detection and flexible sensing. Sensors will evolve towards long life, low power consumption, small size, high precision, low cost, networked, digital, intelligent and anti-interference. Taking gas sensors as an example, he introduced the technical features and advantages of various types of MEMS and smart gas sensor products such as Hanwei semiconductor, thermopile, pyroelectric, temperature and humidity, and their use in home environment, industrial environment and other scenarios. application cases.
At this exhibition, smart sensors have gradually become the protagonist. In the automotive field, with the rapid development of new energy vehicles in recent years, people are paying more and more attention to driving experience and vehicle safety. Therefore, smart sensors in the fields of air quality detection and battery monitoring have made significant progress, such as air quality detection. The sensor can monitor the carbon dioxide concentration and PM2.5 concentration in the cockpit; while the lithium battery thermal runaway monitoring sensor can monitor the CO2, CO, VOC gases and temperature released before the lithium battery thermal runaway is triggered, and measure the signals in real time. Passed to the battery management system to achieve early warning. In fact, related vehicle-mounted smart sensors produced by Hanwei Technology have been adopted by many well-known car companies.
In the field of flexible sensing, flexible smart sensors have been widely used due to the popularity of consumer products such as Bluetooth headsets. Domestic flexible sensors have suddenly emerged in recent years. The flexible sensors exhibited by Hanwei Technology have overcome key technical problems such as low sensitivity, poor stability and difficulty in large-scale manufacturing of flexible micro-nano sensors, and established a stable nano-sensitive material system. It has been widely recognized and the product has been applied in strategic emerging industries such as consumer electronics, health care, and IoT.
In the field of gas safety, laser gas sensors have been used in military, medical, high-end industry and other fields due to their very accurate detection results, strong anti-interference ability, low power consumption, long life, and high reliability. , has now entered the civilian scene, and has become the first choice for household gas alarms. The laser methane household gas alarm exhibited by Hanwei Technology at this exhibition has been recognized by the market not long after it was launched.
Up to now, sensors have been widely used in various fields such as metallurgy, petroleum, chemical industry, electric power, transportation, water conservancy, new energy, electronics, environmental protection, home appliances, aerospace, aviation, military weapons and equipment, national economy, national defense, scientific research and other fields, related to and affecting technological innovation as well as national defense, economic and social security. Smart sensors play an important role in the current industrial structure adjustment, transformation and upgrading, and are of great strategic significance in occupying the commanding heights of strategic emerging industries. The development of smart sensors will definitely drive the upgrading of my country's industrial structure and play an immeasurable role in promoting the overall improvement of industrial and agricultural levels.