On July 16th, the review meeting for the test outline of the national key R&D initiative project "Development and Application of Thermopile Infrared Array Sensor Based on Broad-Spectrum Enhanced Metamaterials" was officially convened. This project falls under the "Intelligent Sensor" key special program, led by Haier Smart Home Co.,Ltd. (ASX: 600690).
Addressing the demand for high-precision, long-range sensors in smart manufacturing and high-end smart home scenarios, Haier Smart Home is collaborating with the Institute of Microelectronics of the Chinese Academy of Sciences to independently develop thermopile infrared array sensors utilizing novel sensitive materials.
The project aims to overcome the shortcomings of domestic array products in terms of temperature measurement accuracy and resolution, providing a hardware system with high response speed, wide temperature measurement range, and high measurement precision. Its application verification will cover multiple core scenarios in intelligent temperature measurement.
For a significant period, existing domestic single-point MEMS thermopile sensors in China have faced physical limitations, such as narrow response bands and low absorption rates in their absorbing layers.
The sensitive elements exhibit weaknesses like low sensitivity and narrow measurement ranges, resulting in a noticeable performance gap compared to mature foreign array products regarding temperature measurement accuracy and resolution.
The national-level R&D project spearheaded by Haier Smart Home is advancing the localization of this core technology to the industry's forefront.
By initiating the independent R&D of thermopile infrared array sensors based on new sensitive materials, Haier Smart Home directly tackles the stringent demand for high-precision, long-range array sensors, from precise appliance temperature control to smart manufacturing scenarios.
The project team has made significant breakthroughs in the underlying "sensitivity-enhancing metamaterials," substantially improving the response speed and sensing range for non-contact temperature measurement.
The R&D team established a system-level model for light-thermal-electric conversion and achieved the integrated preparation of the sensitivity-enhancing metamaterial with the thermopile array.
Coupled with the development of corresponding processing circuits and intelligent temperature measurement systems, this ensures the cutting-edge hardware design can be directly implemented in manufacturing applications.
How is AI functionality, commonly found in many smart appliances, utilized? Large AI models enable temperature sensors to perform complex scene recognition directly on the device end. Haier Smart Home is integrating edge computing methods with the sensor system to equip terminal devices with smarter, autonomous decision-making capabilities.
The project team introduced high-efficiency inference calculation methods for large AI models on edge devices, breaking through key technologies such as scene-based positioning and recognition acceleration for thermopile infrared sensors.
The integrated sensitivity-enhancing metamaterial thermopile infrared array sensor and intelligent temperature measurement system resulting from this project will undergo application validation in real-world scenarios like smart manufacturing, providing accurate environmental data capture and analysis support for industrial production.
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