Intelligent mattress

Abstract

The invention provides an intelligent mattress. The intelligent mattress is characterized by comprising a mattress body, a sensor unit, a signal conditioning circuit and a signal processing circuit, wherein the sensor unit is arranged at a position, corresponding to the upper part of a human body, in the mattress body; the sensor unit comprises a sensor for collecting a pressure signal of a humanbody during sleeping; the signal conditioning circuit amplifies and filters the pressure signal; and the signal processing circuit calculates an output signal of the signal conditioning circuit to obtain sleep condition data. The intelligent mattress provided by the invention uses a single piezoelectric thin film sensor to replace a sensor group to measure various physiological signals, and has the advantages of fast response, high precision and small mutual interference. The piezoelectric thin film sensor is thin and is placed under a body, thus greatly reducing foreign body sensation and improving user comfort. A CC2541 micro-control chip is selected in the signal processing circuit, and both signal processing and communication are considered, thus reducing system size and power consumption and also saving the cost.

Description

technical field [0001] The invention relates to the field of smart home, in particular to a smart mattress. Background technique [0002] With the improvement of living standards, people have higher and higher requirements for sleep quality. Therefore, sleep detection technology is more and more used in daily life. [0003] The Chinese patent application with the publication number CN104101383B discloses a smart mattress based on a fiber grating sensor. By covering the surface of the mattress with an optical fiber wrapped in fabric, the optical fiber is provided with several distributed fiber grating pressure sensors and fiber grating temperature sensors. , many sensors collect human physiological signals through signal coupling. The disadvantage of this solution is: signal acquisition requires the cooperation of many sensors, the signals collected by different sensors will affect each other, it is difficult to capture the signal, resulting in poor signal accuracy; and it n...

AI Technical Summary

Problems solved by technology

The disadvantage of this solution is: signal acquisition requires the cooperation of many sensors, the signals collected by different sensors will affect each other, it is difficult to capture the signal, resulting in poor signal accuracy; and it needs to arrange pressure sensors and temperature sensors in pairs in a distributed manner. Implementation is difficult and costly

The disadvantages of this solution are: the flexible optical fiber material is used as the sensor for signal acquisition, the grating optical fiber is relatively fragile, which limits its service life, and the weak mechanical strength is slightly lacking when used on the bed; and fiber optic grid Wavelength is sensitive to temperature and strain at the same time, when the temperature changes, the measurement data will be inaccurate

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