The current situation and future development direction of sensor technology
With the increase of society’s awareness of environmental protection, sensors are indispensable key components in the process of environmental protection, and the status of their related industries in my country has been increasing year by year. Nowadays, with the continuous deepening of environmental governance and the rising upsurge of environmental protection, domestic and foreign sensor companies have entered the field of environmental protection, and the environmental monitoring sensor market is just around the corner. 1. Sensor materials and device technology and its characteristics From a technical point of view, sensors refer to basic functional devices with information collection functions, including photoelectric, infrared, force-sensitive, biological and other sensors. Sensor materials refer to functional materials that reflect highly sensitive response to small changes in signals such as sound, light, electricity, magnetism, and heat, as well as structural materials required to manufacture sensors, including semiconductors, metals, composite materials, etc. Sensor technology and its industry have the characteristics of technology-intensive, multi-technology collaboration, strong industry penetration, high cross-border integration, low industry concentration, etc.; sensor products have many varieties, small batches, complex structures, and scattered technical indicators , The characteristics of large parameter span, high accuracy requirements, wide application fields, etc.; sensor materials and devices have consistency and stability, as well as high technical foundation and synergy requirements. In the field of sensor technology, due to factors such as overall development level, technical strength, and talent accumulation, my country has formed a 'generation gap' with countries such as Europe and the United States. my country's sensor technology is particularly urgent to catch up. Second, the future development direction of sensor technology With the development of a new generation of information technology, the field of environmental monitoring puts forward new requirements and challenges for sensor equipment. Specifically, the new generation of environmental monitoring equipment needs to develop in the following directions: 1. Zero power consumption In the huge IoT sensor node, it is not realistic to replace the battery every few months. . The 'zero power consumption' sensor can completely shut down the matching circuit, communication and other systems at ordinary times, and it does not need to consume power to maintain sensitivity to external stimuli. When receiving external change 'events' (such as vehicle passing, harmful gas leakage, specific spectrum, etc.), the back-end circuits etc. are connected to achieve true 'zero power consumption' environmental monitoring. 2. Wireless on-demand connection Another major energy consumption of wireless sensor nodes in the Internet of Things comes from wireless communication. Therefore, the use of new materials and devices to achieve wireless on-demand connection, usually the entire communication system is completely shut down, and successfully awakened when needed, is an important direction for the development of wireless sensors in the future. 3. Multi-dimensional information integration That is, the development can measure multiple parameters of a single application scenario at the same time, and process the collected multi-dimensional data through edge computing and other methods, and the output is strong with the application scenario As a result, a new type of sensor with the characteristics of multi-sensor fusion and system integration can realize the perception of multi-dimensional information by a single sensor, realize the integration of calculation, storage and transmission at the edge of the sensing end, and improve the adaptability to application scenarios and environments. Improve reliability. 4. Network protocol and integration In the future, sensors need to be built on a unified material technology platform to form a collaborative design of the sensor, which is processed in one time through a unified material platform. It can also be compatible with the existing CMOS process to form a single-chip integration of multiple sensors and multiple signal reading circuits with network protocol, which greatly improves the integration of sensors. 5. Sensors for special applications include physiological signal acquisition sensors for special environments, and sensors that are transparent, flexible, stretchable, bendable, and wearable for special applications. 6. Multi-sensing function sensor The sensor has been expanded to the new sensing function of gas, liquid, infrared and other information from the single-dimensional physical quantity perception of force, heat, sound, electricity, and magnetism. There are sensors that can perceive the heat, pain, humidity, touch, etc. of human skin. 7. Intelligence Integrates a variety of sensor functions with data processing, storage, two-way communication and other functions, and realizes automatic control, automatic detection, automatic analysis, automatic diagnosis and other functions of sensors in whole or in part . Another direction of intelligence is soft sensing technology, that is, the combination of smart sensors and artificial intelligence.
Nowadays, it is very common for us to utilise in environmental monitoring systems. And the quality of is decisive to production efficiency.
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