Intelligent sole and shoe for home-based care and tumble judging and alarming method

Abstract

The invention relates to an intelligent sole and shoe for home-based care and a tumble judging and alarming method. The intelligent sole comprises a sole (1) body, a self-power-generation and energy collection unit (2), sensor units (3), an MCU (4) and a communication unit (5), the self-power-generation and energy collection unit (2) comprises a piezoelectric film (21), an energy collection circuit (22) and a charging battery (23) which are connected in sequence, the energy collection circuit (22) collects electric quantity of the piezoelectric film (21), converts the electric quantity into stable direct current voltage, outputs the stable direct current voltage to the sensor units (3), the MCU (4) and the communication unit (5) and stores the redundant energy into the charging battery (23), the sensor units (3) sense the posture, angle acceleration and sole pressure of the intelligent shoe and send the signals to the MCU (4), and the MCU (4) conducts tumble judgment on a user of the intelligent shoe according to the signals. Compared with the prior art, the intelligent sole and shoe have the advantages of being low in energy consumption, comfortable to wear, low in error judgment rate and the like.

Description

technical field [0001] The invention relates to a smart home, in particular to a smart shoe sole, a shoe and a fall judgment and alarm method for home care. Background technique [0002] At present, smart shoes or smart insoles are still in the conceptual product stage. They usually monitor the user's gait, steps or accidental falls through the distribution of foot pressure. There are also designs for measuring body weight, temperature, or night lighting. Smart shoes or insoles are usually divided into three parts from the functional modules: power supply part, main function part (monitoring, lighting, etc.), communication part. [0003] In the power supply part, there are usually two types of external charging or self-generating. Self-generation is to use the pressure of the foot on the sole during walking to convert mechanical energy into electrical energy through piezoelectric ceramics or pressure generators. There are also designs that use more complex electromagnetic m...

AI Technical Summary

Problems solved by technology

[0006] However, due to the following reasons, the practical scope of smart shoes is very limited:

[0007] 1) Design defects of the self-generating part: transducer elements such as piezoelectric ceramics, piezoelectric sheets, and electromagnetic mechanisms obviously affect the comfort of the soles of the feet; design defects of the energy harvesting circuit following these transducer elements make the power generation efficiency and The output voltage does not meet the system requirements

[0008] 2) Lack of data analysis algorithms with practical value: At present, the data analysis with practical value is basically limited to sports data, including the number of steps, etc., which are used by users to grasp the amount of exercise and correct exercise posture, etc.

However, the shoe cover has a certain thickness, which affects the comfort when wearing; the shoe cover is soft and easy to deform when walking, which is not conducive to the signal induction of the internal sensor and affects the accuracy of the fall detection result; the power output is unstable

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