Miniature electric driving system and wearable device

Abstract

The invention provides a miniature electric propulsion system and a wearable device, and the system comprises a housing which is at least provided with a first surface and a second surface which can move relative to each other, wherein the first surface and the second surface are opposite to each other; and a first magnet and a second magnet which are respectively arranged on the first surface and the second surface. By changing a magnetic field between the first magnets and the second magnets, the first magnets get close to each other or get away from each other relative to the second magnets, wherein the first magnet and the second magnet are both permanent magnets, the miniature electric pushing system further comprises a motor, and the motor drives the second magnet to rotate relative to the first magnet so as to change the magnetic field between the first magnet and the second magnet; or, if at least one of the first magnet and the second magnet is an electromagnetic coil, the magnetic field between the first magnet and the second magnet is changed by applying different currents to the electromagnetic coil.

Description

technical field [0001] This application relates to the technical field of smart devices, in particular to a miniature electric propulsion system and wearable devices. Background technique [0002] Some current wearable devices have the function of measuring biometric parameters such as blood pressure and heart rate. For example, terminals such as smart bracelets have the function of measuring parameters such as blood pressure and heart rate. These functions are often through photoelectric modules (such as optical PPG) and chips to complete the detection and data analysis of the blood data under the user's skin, and give the user's test results. Taking optical PPG as an example, in order to obtain more accurate test results, the optical PPG installed on the smart bracelet needs to have a good fit with the user's wrist skin. [0003] However, at present, in the process of testing the parameters of the smart bracelet, there are situations such as looser wearing of the bracele...

AI Technical Summary

Problems solved by technology

[0003] However, at present, in the process of testing the parameters of smart bracelets, there are situations such as looser wearing of the bracelet, movement shaking, etc., which will largely cause the skin to not fit well during the test, and there are certain errors in the test results, and the detection is accurate Sex needs to be further improved

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