The Implementation of Low Power SoC Chip and Solution for Infrared Temperature Measurement

In this paper, the architecture and features of the proposed low power SoC which is suitable for infrared temperature measurement are introduced,infrared data acquisition and signal processing were fulfilled by the SoC. Hardware and software design for the infrared temperature measurement on SoC are described. The principles of infrared sensor and analog frontend design in SoC design for infrared temperature measurement application are explained in detail. The infrared ray signal is detected by the infrared sensor, amplification, filtering, Σ-Δ A/D conversion, data processing by the SoC and then the measured result is displayed on LCD. The experiment result shows that the resolution of the infrared temperature meter reached 0.01 ℃, and achieved the goal to measure ear cavity accurately and rapidly. The solution is suitable for housing service, hospital care and check points set up at an airport.