Smart watch convenient to wear and detect
By designing a rigid strap structure for smartwatches to ensure a gap between the bottom of the watch and the object, the problem of misjudgment during wear detection is solved, and the accuracy of detection is improved.
Patent Information
- Application Number
- CN202520456980.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-03-17
AI Technical Summary
Existing smartwatch wear detection methods are easily affected by external environmental interference, leading to misjudgments.
The smartwatch strap is designed with a rigid structure, ensuring a minimum 1-centimeter gap between its bottom surface and any object, preventing it from lying flat, and ensuring that the PPG or IR sensor can accurately detect the wearing status.
By adopting a rigid design, the gap between the bottom surface of the smartwatch strap and the object is improved, avoiding misjudgments when the smartwatch detects wear.
Smart Images
Figure CN223745892U_ABST
Abstract
Description
Technical Field
[0001] This application relates to a smart wearable device, and more particularly to a smartwatch. Background Technology
[0002] Various health monitoring functions are an important feature of smartwatches, such as blood oxygen detection. Wearing detection is usually required before and during health monitoring to determine whether the smartwatch is being worn by a person.
[0003] One method for detecting wear on a smartwatch is to use a PPG (photoplethysmography) sensor in the smartwatch. Light from an LED is used to illuminate an object behind the smartwatch, and a photodiode is used to measure the amount of reflected light, thereby determining whether the smartwatch is being worn by a person.
[0004] Another method of detecting wear on smartwatches is to use the IR (infrared radiation) sensor in the smartwatch. By emitting infrared light towards an object behind the smartwatch and detecting the reflected infrared light, it can determine whether the smartwatch is being worn by a person.
[0005] The two wear detection methods mentioned above are easily affected by external environmental interference, which can impact accuracy. For example, when a smartwatch is worn on a soft plastic arm or placed on a surface similar to skin color, it is prone to misjudgment. Utility Model Content
[0006] The technical problem this application aims to solve is how to reduce the possibility of misjudgment when smartwatches detect wear.
[0007] To address the aforementioned technical problems, this application proposes a smartwatch for easy wear and detection, comprising a watch body and two watch straps; the first end of the first watch strap is fixed to the lower end of the watch body, and the first end of the second watch strap is fixed to the upper end of the watch body; the second ends of the first and second watch straps are detachably fixed. The first portion of the first watch strap near the first end has a non-bendable and non-stretchable structure, while the second portion away from the first end has a bendable and / or stretchable structure; and a fixed angle is formed between the first end of the first watch strap and the lower end of the watch body. The first portion of the second watch strap near the first end has a non-bendable and non-stretchable structure, while the second portion away from the first end has a bendable and / or stretchable structure; and a fixed angle is formed between the first end of the second watch strap and the upper end of the watch body.
[0008] Furthermore, the watch body has a PPG sensor or an IR sensor.
[0009] Further, when the smart watch is placed on any object in a bottom surface downward manner, due to the rigid structure between the first part of the first watchband, the watch body and the first part of the second watchband, the bottom surface of the watch body is forced to have a distance with the object.
[0010] Preferably, the distance is greater than or equal to 1 centimeter.
[0011] The application also proposes another smart watch convenient for wearing detection, which comprises a watch body and a unique watchband. The first end of the unique watchband is fixed to the lower end of the watch body, and the second end of the unique watchband is fixed to the upper end of the watch body. The first part of the unique watchband close to the first end adopts a structure that cannot be bent or stretched, the second part of the unique watchband away from the first end and the second end adopts a structure that can be bent and / or stretched, and the third part of the unique watchband close to the second end adopts a structure that cannot be bent or stretched. A fixed angle is formed between the first end of the unique watchband and the lower end of the watch body, and a fixed angle is formed between the second end of the unique watchband and the upper end of the watch body.
[0012] Further, the watch body is provided with a PPG sensor or an IR sensor.
[0013] Further, when the smart watch is placed on any object in a bottom surface downward manner, due to the rigid structure between the first part of the first watchband, the watch body and the first part of the second watchband, the bottom surface of the watch body is forced to have a distance with the object.
[0014] Preferably, the distance is greater than or equal to 1 centimeter.
[0015] The application achieves the technical effect that the part of the watchband close to the watch body adopts a rigid structure, the bottom surface of the smart watch cannot be placed flat on the desktop, the external use environment is improved, and the situation that the wearing detection algorithm of the smart watch using the PPG sensor or the IR sensor is misjudged is avoided. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 is a schematic diagram of the first embodiment of the smart watch convenient for wearing detection proposed by the application.
[0017] Figure 2 is a schematic diagram of the second embodiment of the smart watch convenient for wearing detection proposed by the application.
[0018] The figure mark explanation: 10 is the watch body, 20 is the first watchband, 20a is the first end of the first watchband, 21 is the first part of the first watchband, 22 is the second part of the first watchband, 30 is the second watchband, 30a is the first end of the second watchband, 31 is the first part of the second watchband, 32 is the second part of the second watchband, 40 is the unique watchband, 40a is the first end of the unique watchband, 40b is the second end of the unique watchband, 41 is the first part of the unique watchband, 42 is the second part of the unique watchband, 43 is the third part of the unique watchband. DETAILED DESCRIPTION
[0019] Please refer to Figure 1 The first embodiment of the smart watch for facilitating wearing detection proposed in the present application comprises a watch body 10 and two watchbands 20 and 30. The watch body 10 is provided with a PPG sensor or an IR sensor for performing wearing detection of the smart watch. The first end 20a of the first watchband 20 is fixed to the lower end of the watch body 10, and such fixing includes any one of a permanent fixing mode and a detachable fixing mode. The first end 30a of the second watchband 30 is fixed to the upper end of the watch body 10, and such fixing includes any one of a permanent fixing mode and a detachable fixing mode. The second end of the first watchband 20 and the second end of the second watchband 30 are detachably fixed.
[0020] The first watchband 20 is divided into two parts: the first part 21 close to the first end 20a adopts a structure that cannot be bent and stretched, and the second part 22 away from the first end 20a adopts a structure that can be bent and / or stretched. And a fixed included angle between the first end 20a of the first watchband 20 and the lower end of the watch body 10 is unadjustable.
[0021] The second watchband 30 is divided into two parts: the first part 31 close to the first end 30a adopts a structure that cannot be bent and stretched, and the second part 32 away from the first end 30a adopts a structure that can be bent and / or stretched. And a fixed included angle between the first end 30a of the second watchband 30 and the upper end of the watch body 10 is unadjustable.
[0022] When Figure 1 The smart watch shown in the figure is placed on the desktop in a bottom-down manner, and due to the rigid structure between the first part 21 of the first watchband, the watch body 20, and the first part 31 of the second watchband, the bottom surface of the watch body 10 and the desktop have a spacing h. Preferably, the spacing h is greater than or equal to 1 centimeter.
[0023] PPG sensor, IR sensor are required to have a certain distance from the object to ensure that the correct distinction between skin, object, etc. according to the reflected light signal, but also need a certain space to receive scattered light. Too close will cause the light signal to be concentrated back by the object, rather than being absorbed or scattered by the blood, resulting in false identification. Especially some soft objects such as bed sheets, clothes, etc. will not have obvious light absorption, resulting in too strong reflected light signal. The existence of this spacing h avoids the false detection of the smart watch using PPG sensor or IR sensor for wearing detection.
[0024] Please refer to Figure 2 The second embodiment of the smart watch for easy wearing detection proposed in the present application includes a watch body 10 and a unique watchband 40. The watch body 10 has a PPG sensor or an IR sensor on it to detect the wearing of the smart watch. The first end 40a of the unique watchband 40 is fixed to the lower end of the watch body 10, and this fixing includes any one of a permanent fixing method and a detachable fixing method. The second end 40b of the unique watchband 40 is fixed to the upper end of the watch body 10, and this fixing includes any one of a permanent fixing method and a detachable fixing method. The first end 40a and the second end 40b of the unique watchband 40 are the same watchband, but Figure 2 Interrupted sketch is used.
[0025] The unique watchband 40 is divided into three parts: the first part 41 near the first end 40a adopts a structure that cannot be bent and stretched, the second part 42 away from the first end 40a and the second end 40b adopts a structure that can be bent and / or stretched, and the third part 43 near the second end 40b adopts a structure that cannot be bent and stretched. And the first end 40a of the unique watchband 40 and the lower end of the watch body 10 form an unadjustable fixed included angle, and the second end 40a of the unique watchband 40 and the upper end of the watch body 10 form an unadjustable fixed included angle.
[0026] When Figure 2 The smart watch shown in the figure is placed on the desktop with the bottom surface facing down. Because the first part 41 of the unique watchband, the watch body 10, and the third part 43 of the unique watchband have a rigid structure, the bottom surface of the watch body 10 and the desktop have a spacing h. The existence of this spacing h avoids the false detection of the smart watch using PPG sensor or IR sensor for wearing detection.
[0027] The part of the watchband (wristband) of the smart watch close to the watch body adopts a rigid structure, so that when the smart watch is placed on a desktop, the bottom surface of the smart watch cannot be placed flat on the desktop, but can only be placed sideways or upside down on the desktop. In such an external environment, the wearing detection algorithm using a PPG sensor or an IR sensor can accurately judge the wearing state of the smart watch, and no misjudgment will occur.
[0028] The preferred embodiments of the present application are described above, but the present application is not limited to the above. Various modifications and changes can be made by those skilled in the art based on the spirit and principles of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A smart watch facilitating detection of wearing, characterized by, The watch body and two watch bands; the first end of the first watch band is fixed on the lower end of the watch body, the first end of the second watch band is fixed on the upper end of the watch body, and the second end of the first watch band and the second end of the second watch band are fixed in a detachable manner; The first part of the first watch band close to the first end adopts a structure that cannot be bent and stretched, and the second part away from the first end adopts a structure that can be bent and / or stretched; and a fixed angle is formed between the first end of the first watch band and the lower end of the watch body; The first part of the second watch band close to the first end adopts a structure that cannot be bent and stretched, and the second part away from the first end adopts a structure that can be bent and / or stretched; and a fixed angle is formed between the first end of the second watch band and the upper end of the watch body.
2. The smart watch of claim 1, wherein, The watch body has a PPG sensor or an IR sensor.
3. The smart watch of claim 1, wherein, When the smart watch is placed on any object with the bottom surface downward, due to the rigid structure between the first part of the first watch band, the watch body, and the first part of the second watch band, the bottom surface of the watch body and the object have a distance.
4. The smart watch of claim 3, wherein, The distance is greater than or equal to 1 cm.
5. A smart watch facilitating detection of wearing, characterized by, The watch body and a unique watch band; the first end of the unique watch band is fixed on the lower end of the watch body, and the second end of the unique watch band is fixed on the upper end of the watch body; The first part of the unique watch band close to the first end adopts a structure that cannot be bent and stretched, the second part away from the first end and the second end adopts a structure that can be bent and / or stretched, and the third part close to the second end adopts a structure that cannot be bent and stretched; and a fixed angle is formed between the first end of the unique watch band and the lower end of the watch body, and a fixed angle is formed between the second end of the unique watch band and the upper end of the watch body.
6. The smart watch of claim 5, wherein, The watch body has a PPG sensor or an IR sensor.
7. The smart watch of claim 5, wherein, When the smart watch is placed on any object with the bottom surface downward, due to the rigid structure between the first part of the unique watch band, the watch body, and the third part of the unique watch band, the bottom surface of the watch body and the desktop have a distance.
8. The smart watch of claim 7, wherein, The distance is greater than or equal to 1 cm.