Wearable device and wearable device fixing method

Abstract

The present invention provides a wearable device and a method for fixing a wearable device. The wearable device includes: a device body; a fixing hoop, both ends of which are fixedly connected to the device body, and together with the device body, form a ring; a plurality of elastic sacs, which are arranged on the inner side of the fixing hoop along the inner periphery of the fixing hoop; a fluid filling device, which is connected to the plurality of elastic sacs and fills the plurality of elastic sacs with fluid to expand the plurality of elastic sacs; a pressure gauge, which is arranged on one side of the elastic sacs and is used to detect the fluid pressure in the elastic sacs; a control mechanism, which is electrically connected to the pressure gauge and the fluid filling device, and when the pressure measured by the pressure gauge is greater than a predetermined comfortable pressure threshold, controls the fluid filling device to stop filling the elastic sac with fluid. The force-bearing area of ​​the human body is increased, and the peak pressure when worn is reduced, making it more comfortable for the user to wear.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a wearable device and a method for fixing the wearable device. Background Art

[0002] At present, wearable devices on the market, especially virtual reality devices, have many components and are heavy. Currently, fixing mechanisms such as elastic bands or adjustable headbands are generally used to fix the virtual reality devices on the user's body. However, if the above-mentioned fixing mechanisms are worn too loosely, the device will not be firmly fixed. If they are fixed too tightly, the user will feel uncomfortable wearing the device, which is not suitable for users to wear for a long time. Summary of the invention

[0003] One purpose of the present invention is to solve the technical problem in the prior art that wearable devices are not suitable for users to wear for a long time.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] According to one aspect of the present invention, the present invention provides a wearable device, comprising:

[0006] Equipment body;

[0007] A fixing hoop, both ends of which are fixedly connected to the equipment body, and together with the equipment body form a ring;

[0008] A plurality of elastic bags are arranged inside the fixing hoop along the inner periphery of the fixing hoop;

[0009] A fluid filling device, connected to the plurality of elastic bags, is configured to fill the plurality of elastic bags with fluid to expand the plurality of elastic bags;

[0010] A pressure gauge, disposed on one side of the elastic bladder, for detecting the fluid pressure in the elastic bladder;

[0011] The control mechanism is connected to the pressure gauge and the fluid filling device via electrical signals, and controls the fluid filling device to stop filling the elastic bag with fluid when the pressure measured by the pressure gauge is greater than a predetermined comfortable pressure threshold.

[0012] According to another aspect of the present invention, the present invention also provides a wearable device fixing method, which includes:

[0013] Controlling the fluid filling device to fill the plurality of elastic bags with fluid so that the elastic bags are in contact with the human body;

[0014] Obtaining the fluid pressure value measured by the pressure gauge at every predetermined detection time;

[0015] If the fluid pressure value reaches a predetermined comfortable pressure threshold, the fluid filling device is controlled to maintain the fluid pressure value so that the wearable device can be fixed on the human body.

[0016] It can be seen from the above technical solution that the present invention has at least the following advantages and positive effects:

[0017] In the present invention, a plurality of elastic bags are provided on the inner side of the fixing hoop of the wearable device, and the elastic bags are filled with fluid through a fluid filling device to expand the elastic bags. When the elastic bags come into contact with the human body, the wearable device is fixed on the user's body, and the fluid filling device continues to fill the fluid. When the pressure measured by the pressure gauge is greater than the predetermined comfortable pressure threshold, the fluid filling device is controlled to stop filling the elastic bags with fluid. In this solution, the elastic bag filled with fluid comes into contact with the human body. This contact is soft contact, which avoids the hard contact between the fixing hoop part of the wearable device and the human body. At the same time, the airbags can ensure that the pressure applied to the human body can be more evenly distributed on all the airbags in contact with the human body, thereby increasing the force area of ​​the human body and reducing the peak pressure when worn, making it more comfortable for the user to wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the wearable device disclosed in the present invention.

[0019] Figure 2 It is a schematic diagram of the partial structure of the wearable device disclosed in the present invention.

[0020] Figure 3 This is another partial structural diagram of the wearable device disclosed in the present invention.

[0021] Figure 4 This is another structural schematic diagram of the wearable device disclosed in the present invention.

[0022] Figure 5 It is a schematic diagram of the structure of the control chip disclosed in the present invention.

[0023] Figure 6 It is another structural schematic diagram of the control chip disclosed in the present invention.

[0024] Figure 7 It is another structural schematic diagram of the control chip disclosed in the present invention. DETAILED DESCRIPTION

[0025] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially used for illustration purposes rather than for limiting the present invention.

[0026] The present invention provides a wearable device, which may be a bracelet, a watch, VR glasses, AR glasses, an anklet, a belt, a headband, etc., which is not limited here. As long as the wearable device can be worn on a human body, it can be the wearable device of the present invention. For the convenience of explanation, VR glasses are used as an example to illustrate the wearable device.

[0027] like Figure 1 and Figure 2 As shown, the wearable device includes a device body 10 , a fixing hoop 20 , a plurality of elastic bladders 30 , a fluid filling device 40 , a pressure gauge 50 and a control mechanism 60 .

[0028] The two sides of the device body 10 are respectively fixedly connected to the two sides of the fixing hoop 20 to form a ring. The elastic capsule 30 is arranged on the inner side of the fixing hoop 20 along the inner periphery of the fixing hoop 20. When the user wears the wearable device, the elastic capsule 30 contacts the human body. The fluid filling device 40 is arranged on the fixing hoop 20 and is connected to the elastic capsule 30. When the user wears the wearable device, the fluid filling device 40 is started, and the fluid is filled into the elastic capsule 30 to expand the elastic capsule 30 until it contacts the human body, so that the wearable device is fixed on the human body. Since the wearable device in this embodiment is in soft contact with the human body by the elastic capsule 30 filled with fluid inside after being worn, this contact mode has better buffering performance than the traditional elastic band and the contact mode of the headband with sponge on the inside, so that when the wearable device is worn, the pressure on the human body can be further dispersed more evenly, reducing the maximum pressure that the human body can feel, reducing the pressure on the human body to a greater extent, making people feel more comfortable, so that the wearing time of the user can be extended. The pressure gauge 50 is disposed on one side of the elastic bladder 30 and is used to detect the fluid pressure in the elastic bladder 30. The control mechanism 60 is electrically connected to the pressure gauge 50 and the fluid filling device 40. The control mechanism 60 is used to control the fluid filling device 40 to fill the elastic bladder 30 with fluid. When the pressure measured by the pressure gauge 50 is greater than the predetermined comfortable pressure threshold, the fluid filling device 40 is controlled to stop filling the elastic bladder 30 with fluid.

[0029] It is understandable that the elastic bag 30 may be filled with gases such as nitrogen, air and carbon dioxide, or liquids such as water or aqueous solution, and the present invention is not limited thereto.

[0030] It can be understood that the above-mentioned fluid filling device 40 can also be arranged on the equipment body 10.

[0031] Among them, the device body 10 integrates the main working components of the wearable device, such as a screen component, a control mechanism, a power supply component, a camera component and multiple of various sensors. It can be understood that a functional compartment can be provided on the fixing hoop 20, and the functional compartment is arranged opposite to the device body 10. The power supply component is arranged in the functional compartment, so that the weight distribution of the wearable device is more even, so as to avoid the user feeling that the device body 10 is too heavy and the weight is unbalanced when wearing it.

[0032] The fluid filling device 40 includes a negative pressure pump 41 and a connecting pipe 42, and the negative pressure pump 41 is connected to the elastic bag 30 through the connecting pipe 42. The negative pressure pump 41 is arranged outside the fixing hoop 20 and is arranged opposite to the device body 10. In this embodiment, the fluid filled in the elastic bag 30 is air, and the negative pressure pump 41 pumps the outside air into the elastic bag 30 through the connecting pipe 42 outside the fixing hoop 20.

[0033] like Figure 2 As shown, the elastic capsule 30 includes a plurality of first elastic capsules 31 and a plurality of second elastic capsules 32, and the first elastic capsules 31 and the second elastic capsules 32 are arranged at intervals, that is, the two adjacent sides of the first elastic capsule 31 are the second elastic capsules 32, and the two adjacent sides of the second elastic capsule 32 are the first elastic capsules 32. Correspondingly, the connecting pipe 42 includes a first connecting pipe 421 and a second connecting pipe 422, and the negative pressure pump 41 fills the fluid into the first elastic capsule 31 through the first connecting pipe 421, and fills the fluid into the plurality of second elastic capsules 32 through the second connecting pipe 422.

[0034] Understandable, such as Figure 3 As shown, the fluid filled into the elastic bag 30 can also be water, circulating fluid, and fluids that need to be stored, such as carbon dioxide and nitrogen, so the fluid filling device 40 can also include a fluid storage layer 45. The fluid storage layer 45 stores the above-mentioned fluid. In this embodiment, the circulating fluid is taken as an example. The fluid storage layer 45 is arranged between the elastic bag 30 and the fixing hoop 20, and is connected to the negative pressure pump 41, and is connected to the elastic bag 30 through the negative pressure pump 41. When the wearable device is started, the negative pressure pump 41 pumps the fluid stored in the fluid storage layer 45 into the elastic bag 30 through the connecting tube 42.

[0035] Understandable, such as Figure 4The fluid filling device 40 shown above may further include a squeezing mechanism 44 and a plurality of storage chambers 48 corresponding to the plurality of elastic capsules 30. The storage chamber 48 is surrounded by an elastic wall 49 and is disposed between the elastic capsule 30 and the fixing hoop 20. Each elastic capsule 30 is connected to a corresponding storage chamber 48, and a fluid is stored in the storage chamber 48. The squeezing mechanism 44 squeezes the elastic wall 49 surrounding the storage chamber 48 to shrink the space of the storage chamber 48, and the fluid stored therein flows toward the elastic capsule 30 to fill the elastic capsule 30.

[0036] Among them, the squeezing mechanism 44 includes a push-pull plate 441 and a driving assembly. In this embodiment, the driving assembly is two curling driving assemblies 442. The push-pull plate 441 is arranged on the side of the storage cavity 48 away from the elastic capsule 30, and contacts the elastic wall 49 surrounding the storage cavity 48. The curling driving assembly 442 is respectively arranged at both ends of the fixing hoop 20, and is respectively fixedly connected to the two ends of the push-pull plate 441. When the wearable device is started, the curling driving assembly 442 pulls the two ends of the push-pull plate 441, so that the push-pull plate 441 shrinks toward the elastic capsule 30, squeezes the elastic wall 49 surrounding the storage cavity 48, and makes the fluid stored in the storage cavity 48 fill the elastic capsule 30. It can be understood that the above-mentioned driving assembly can also be a plurality of push-pull driving assemblies arranged along the fixing hoop 20, which are located between the push-pull plate 441 and the fixing hoop 20. When the wearable device is started, the push-pull driving assembly pushes the push-pull plate 441 to squeeze the elastic wall 49 surrounding the storage cavity 48 , so that the fluid stored in the storage cavity 48 fills the elastic bag 30 .

[0037] It is understandable that the squeezing mechanism 44 further includes a thread assembly corresponding to the plurality of storage chambers 48 . The elastic wall 49 is received in the thread assembly, and the thread assembly squeezes the elastic wall 49 so that the fluid stored in the storage chamber 48 fills the elastic bag 30 .

[0038] In one embodiment of the present disclosure, Figure 5 As shown, the control mechanism 60 includes:

[0039] A filling start unit 610, used to control the fluid filling device to fill the plurality of elastic bags with fluid so that the elastic bags are in contact with the human body;

[0040] A pressure detection unit 620, electrically connected to the filling start unit 610, for obtaining the fluid pressure value measured by the pressure gauge at every predetermined detection time;

[0041] The filling stop unit 630 is electrically connected to the pressure detection unit 620, and is used to control the fluid filling device to maintain the fluid pressure value if the fluid pressure value reaches a predetermined comfortable pressure threshold, so as to fix the wearable device on the human body.

[0042] Specifically, Figure 1 Taking the embodiment shown as an example, when the wearable device is started, the control mechanism 60 first controls the fluid filling device 40 to fill the fluid into the multiple elastic capsules 30 through the filling start unit 610, so that the elastic capsules 30 are in contact with the human body. At the same time, the pressure detection unit 620 obtains the fluid pressure value measured by the pressure gauge 50 at every predetermined detection time. When the fluid pressure value reaches the predetermined comfortable pressure threshold, it proves that the wearable device can be fixed on the user's head and the user feels comfortable. At this time, the filling stop unit 630 controls the fluid filling device 40 to maintain the fluid pressure value so that the wearable device is fixed on the human body. The method of maintaining the fluid pressure value is, for example, to turn off the fluid filling device 40 to stop filling the elastic capsule 30 with fluid, or to control the fluid filling device 40 to replenish part of the fluid into the elastic capsule 30 every certain period of time, for example, 23 minutes, so as to avoid the loss of fluid in the elastic capsule 30 due to long wearing time.

[0043] The predetermined detection time may be 0.1 seconds, 1 second, 6 seconds, etc., which is not limited in the present invention. The predetermined comfortable pressure threshold may be, for example, 99 kPa, 101 kPa, etc., which is not limited in the present invention. The predetermined comfortable pressure threshold may be a set fixed value or a variable value adjusted according to different users.

[0044] In one embodiment of the present disclosure, Figure 6 As shown, the control mechanism 60 may also include:

[0045] The information acquisition unit 640 is used to acquire user identity information;

[0046] A threshold determination unit 650, electrically connected to the information acquisition unit 640, for determining a predetermined comfortable pressure threshold corresponding to the user identity information according to the user identity information;

[0047] The information acquisition unit 640 and the threshold determination unit 650 are electrically connected to the filling stop unit 630 via electrical signals.

[0048] Among them, the user's identity information can be the user's fingerprint or face image, or it can be text information such as a user name and account number. This embodiment takes fingerprint as an example. In this embodiment, when the user starts the wearable device, the wearable device will obtain the user's fingerprint information. At this time, the control mechanism 60 obtains the fingerprint information through the information acquisition unit 640, and then determines the predetermined comfortable pressure threshold corresponding to the fingerprint information based on the fingerprint information. Specifically, the predetermined comfortable pressure threshold corresponding to the fingerprint information determined based on the fingerprint information can be determined by querying the corresponding relationship table between the fingerprint information and the predetermined comfortable pressure threshold stored in the control mechanism. The corresponding relationship table between the fingerprint information and the predetermined comfortable pressure threshold can be set by the user in advance, or the pressure value set when the user wears it for the first time or the most recent time can be used as the predetermined comfortable pressure threshold of the user and stored in association with the user's fingerprint information.

[0049] In another embodiment of the present disclosure, Figure 7 As shown, the control mechanism 60 may also include:

[0050] A feature acquisition unit 660 is used to acquire the characteristic attribute parameters of the user's head, wherein the user's head information parameters include the coordinate values ​​of the key points of the user's skull;

[0051] The threshold calculation unit 670 is electrically connected to the feature acquisition unit 660 and is used to combine the head feature attribute parameters of the user into a head feature vector, and calculate the predetermined comfortable pressure threshold of the user through the head feature vector;

[0052] The associated storage unit 680 is electrically connected to the threshold calculation unit 670, and is used to associate and store the determined user predetermined comfort pressure threshold with the user identity information.

[0053] In this embodiment, when the user starts the wearable device, the control chip 60 will obtain the head feature attribute parameters of the user obtained by the wearable device sensor through the feature acquisition unit 660, and then the head feature attribute parameters of the user are combined into a head feature vector through the threshold calculation unit 670, and the predetermined comfortable pressure threshold of the user is calculated through the head feature vector, and finally the determined predetermined comfortable pressure threshold of the user is associated with the user identity information of the user through the associated storage unit 680 for storage. Among them, the head information parameters of the user include the coordinate values ​​of the key points of the user's skull. Specifically, the predetermined comfortable pressure threshold of the user can be calculated through the head feature vector by calculating the distance between the key points of the skull in the head feature vector, fitting the shape and size of the skull where the user contacts the wearable device, and then calculating the predetermined comfortable pressure threshold according to its shape and size.

[0054] In another embodiment of the present disclosure, the wearable device is a wearable device as shown in the figure. It can be understood that in this embodiment, the control mechanism 60 also includes:

[0055] a first charging and discharging unit, used to control the fluid filling device to fill the first elastic bag with fluid at a first predetermined filling time interval, and to discharge the fluid in the first elastic bag at a first predetermined discharge time interval after each filling of the first elastic bag;

[0056] The second charging and discharging unit is used to control the fluid filling device to fill the second elastic bag with fluid at a second predetermined filling time, and to discharge the fluid in the second elastic bag at a second predetermined discharge time after each filling of the second elastic bag is completed.

[0057] In this embodiment, the wearable device can also control the negative pressure pump 41 to fill the first elastic bladder 31 and the second elastic bladder 32 with fluid through the first charging and discharging unit 601 and the second charging and discharging unit. By charging the adjacent elastic bladders 30 at different times, the operation of cyclic charging and discharging can be realized, which can give the head skin time to rest, thereby effectively relieving the pressure of the wearable device on the head and improving the user experience. Among them, the first predetermined filling time and the second predetermined filling time are, for example, 2 minutes, 3 minutes, 5 minutes, etc., and the first predetermined discharge time and the second predetermined discharge time are, for example, 11 minutes, 13 minutes, 17 minutes, etc., and the present invention is not limited again.

[0058] Specifically, the wearable device can be configured with a cyclic charging and discharging pressure mode. The control chip 60 responds to the instruction to trigger the cyclic charging and discharging pressure mode, and controls the fluid filling device 40 through the first charging and discharging unit 601 to fill the first elastic bag 31 with fluid every 10 minutes starting from the 1st minute, and discharge the fluid in the first elastic bag 32 at an interval of 5 minutes after each filling of the first elastic bag 31 is completed. At the same time, the fluid filling device 40 is controlled by the second charging and discharging unit to fill the second elastic bag 32 with fluid every 10 minutes starting from the 5th minute, and discharge the fluid in the second elastic bag 32 at an interval of 5 minutes after each filling of the second elastic bag 32 is completed.

[0059] The present disclosure further proposes a wearable device fixing method, comprising:

[0060] Controlling the fluid filling device to fill the plurality of elastic bags with fluid so that the elastic bags are in contact with the human body;

[0061] Obtaining the fluid pressure value measured by the pressure gauge at every predetermined detection time;

[0062] If the fluid pressure value reaches a predetermined comfortable pressure threshold, the fluid filling device is controlled to maintain the fluid pressure value so that the wearable device can be fixed on the human body.

[0063] Specifically, Figure 1 Taking the embodiment shown as an example, when the wearable device is started, the fluid filling device 40 is first controlled to fill the fluid into the multiple elastic capsules 30 so that the elastic capsules 30 are in contact with the human body. At the same time, the fluid pressure value measured by the pressure gauge 50 is obtained at predetermined detection time intervals. When the fluid pressure value reaches the predetermined comfortable pressure threshold, it proves that the wearable device can be fixed on the user's head and the user feels comfortable. At this time, the fluid filling device 40 is controlled by the filling stop unit to maintain the fluid pressure value so that the wearable device is fixed on the human body. The method of maintaining the fluid pressure value is, for example, to turn off the fluid filling device 40 to stop filling the elastic capsule 30 with fluid, or to control the fluid filling device 40 to replenish part of the fluid into the elastic capsule 30 every certain period of time, for example, 23 minutes, so as to avoid the loss of fluid in the elastic capsule 30 due to wearing for too long.

[0064] The predetermined detection time may be 0.1 seconds, 1 second, 6 seconds, etc., which is not limited in the present invention. The predetermined comfortable pressure threshold may be, for example, 99 kPa, 101 kPa, etc., which is not limited in the present invention. The predetermined comfortable pressure threshold may be a set fixed value or a variable value adjusted according to different users.

[0065] It can be understood that if the fluid pressure value reaches a predetermined comfortable pressure threshold, before controlling the fluid filling device to maintain the fluid pressure value so that the wearable device is fixed on the human body, the method may further include:

[0066] Obtain user identity information;

[0067] A predetermined comfortable pressure threshold corresponding to the user identity information is determined according to the user identity information.

[0068] Among them, the identity information of the user can be the user's fingerprint or face image, or it can be text information such as a user name and account number. This embodiment takes fingerprint as an example. In this embodiment, when the user starts the wearable device, the wearable device will obtain the user's fingerprint information. At this time, the fingerprint information is first obtained, and then the predetermined comfortable pressure threshold corresponding to the fingerprint information is determined according to the fingerprint information. Specifically, the predetermined comfortable pressure threshold corresponding to the fingerprint information determined according to the fingerprint information can be determined by querying the correspondence table between the fingerprint information and the predetermined comfortable pressure threshold stored in the control mechanism. The correspondence table between the fingerprint information and the predetermined comfortable pressure threshold can be set by the user in advance, or the pressure value set when the user wears it for the first time or the most recent time can be used as the predetermined comfortable pressure threshold of the user and stored in association with the user's fingerprint information.

[0069] It is understandable that the method may further include:

[0070] Acquire the user's head characteristic attribute parameters, wherein the user's head information parameters include the coordinate values ​​of the key points of the user's skull;

[0071] Combining the head feature attribute parameters of the user into a head feature vector, and calculating a predetermined comfortable pressure threshold of the user through the head feature vector;

[0072] The determined user predetermined comfortable pressure threshold is associated with the user identity information of the user and stored.

[0073] In this embodiment, the user's head feature attribute parameters obtained by the wearable device sensor can be obtained, and then the user's head feature attribute parameters are combined into a head feature vector, and the user's predetermined comfortable pressure threshold can be calculated through the head feature vector. Among them, the user's head information parameters include the coordinate values ​​of the key points of the user's skull. Specifically, the user's predetermined comfortable pressure threshold can be calculated through the head feature vector by calculating the distance between the key points of the skull in the head feature vector, fitting the shape and size of the skull where the user contacts the wearable device, and then calculating the predetermined comfortable pressure threshold based on its shape and size. After calculating the user's predetermined comfortable pressure threshold, the determined user's predetermined comfortable pressure threshold can also be associated with the user's identity information and stored.

[0074] It can be understood that if the wearable device is a wearable device as shown in the figure, the method may also include:

[0075] Control the fluid filling device to fill the first elastic bag with fluid at a first predetermined filling time interval, and discharge the fluid in the first elastic bag at a first predetermined discharge time interval after each filling of the first elastic bag is completed;

[0076] The fluid filling device is controlled to fill the second elastic bag with fluid at intervals of a second predetermined filling time, and the fluid in the second elastic bag is discharged at intervals of a second predetermined discharge time after each filling of the second elastic bag is completed.

[0077] In this embodiment, the wearable device can also control the negative pressure pump 41 to fill the first elastic bag 31 and the second elastic bag 32 with fluid. By filling the adjacent elastic bags 30 at different times, the operation of cyclic charging and discharging can be realized, which can give the head skin time to rest, thereby effectively relieving the pressure of the wearable device on the head and improving the user experience. Among them, the first predetermined filling time and the second predetermined filling time are, for example, 2 minutes, 3 minutes, 5 minutes, etc., and the first predetermined discharge time and the second predetermined discharge time are, for example, 11 minutes, 13 minutes, 17 minutes, etc., which are not limited by the present invention again.

[0078] Specifically, the wearable device may respond to an instruction to trigger the cyclic charging and discharging pressure mode, control the fluid filling device 40 to fill the first elastic bag 31 with fluid every 10 minutes starting from the 1st minute, and discharge the fluid in the first elastic bag 32 at an interval of 5 minutes after each filling of the first elastic bag 31 is completed. At the same time, the fluid filling device 40 may be controlled to fill the second elastic bag 32 with fluid every 10 minutes starting from the 5th minute, and discharge the fluid in the second elastic bag 32 at an interval of 5 minutes after each filling of the second elastic bag 32 is completed.

[0079] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the present invention can be embodied in a variety of forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A wearable device, characterized in that: include: Device body; the device body integrates the main working components of the wearable device; A fixing hoop, both ends of which are fixedly connected to the equipment body, and together with the equipment body form a ring; A plurality of elastic bags are arranged inside the fixing hoop along the inner periphery of the fixing hoop; A fluid filling device, connected to the plurality of elastic bags, is configured to fill the plurality of elastic bags with fluid to expand the plurality of elastic bags; A pressure gauge, disposed on one side of the elastic bladder, for detecting the fluid pressure in the elastic bladder; a control mechanism, connected to the pressure gauge and the fluid filling device by electrical signals, and controlling the fluid filling device to stop filling the elastic bag with fluid when the pressure measured by the pressure gauge is greater than a predetermined comfortable pressure threshold; The fluid filling device comprises a negative pressure pump and a connecting tube, and the negative pressure pump fills the fluid into the multiple elastic bags through the connecting tube; The multiple elastic sacs include multiple first elastic sacs and multiple second elastic sacs, and the first elastic sacs are spaced apart from the second elastic sacs; wherein the two adjacent sides of the first elastic sacs are the second elastic sacs, and the two adjacent sides of the second elastic sacs are the first elastic sacs; the connecting tubes include a first connecting tube and a second connecting tube, and the negative pressure pump fills the fluid into the multiple first elastic sacs through the first connecting tube, and fills the fluid into the multiple second elastic sacs through the second connecting tube.

2. The wearable device according to claim 1, characterized in that: The fluid filling device includes an extrusion mechanism and a plurality of storage cavities corresponding to the plurality of elastic bags. The storage cavities are surrounded by elastic walls and are arranged between the elastic bags and the fixing hoop. Each elastic bag is connected to a corresponding storage cavity. Fluid is stored in the storage cavity. The extrusion mechanism squeezes the elastic walls surrounding the storage cavity so that the fluid stored in the storage cavity fills the elastic bag.

3. The wearable device according to claim 2, characterized in that: The extrusion mechanism includes a push-pull plate and a driving assembly. The push-pull plate contacts the elastic wall surrounding the storage cavity and is arranged on a side of the storage cavity away from the elastic bag. The driving assembly is drivingly connected to the push-pull plate to drive the push-pull plate to squeeze the elastic wall surrounding the storage cavity so that the fluid stored in the storage cavity fills the elastic bag.

4. The wearable device according to claim 3, characterized in that: The drive assembly includes two curling drive assemblies, which are respectively arranged at the two ends of the fixing hoop and are respectively fixedly connected to the two ends of the push-pull plate. The curling drive assembly pulls the two ends of the push-pull plate to make the push-pull plate shrink toward the elastic bag, squeeze the elastic wall surrounding the storage cavity, and make the fluid stored in the storage cavity fill the elastic bag.

5. The wearable device according to claim 2, characterized in that: The squeezing mechanism includes a thread assembly corresponding to the multiple storage cavities one by one, the elastic wall surrounding the storage cavity is accommodated in the thread assembly, and the thread assembly squeezes the elastic wall to make the fluid stored in the storage cavity fill the elastic bag.

6. The wearable device according to claim 1, characterized in that: The fluid is air, and the negative pressure pump is arranged outside the fixing hoop to pump external air into the elastic bag through the connecting pipe.

7. The wearable device according to claim 1, characterized in that: The fluid filling device also includes a fluid storage layer, in which fluid is stored. The fluid storage layer is arranged between the elastic bag and the fixing hoop, and is connected to the negative pressure pump so that the negative pressure pump can pump the fluid stored in the fluid storage layer into the elastic bag.

8. The wearable device according to claim 1, characterized in that: The negative pressure pump is arranged on the fixing hoop and is arranged opposite to the equipment body.

9. The wearable device according to claim 1, characterized in that: The control mechanism comprises: a filling start unit, used for controlling the fluid filling device to fill the plurality of elastic bags with fluid so that the elastic bags are in contact with the human body; A pressure detection unit, electrically connected to the filling start unit, for obtaining the fluid pressure value measured by the pressure gauge at every predetermined detection time; The filling stop unit is electrically connected to the pressure detection unit and is used to control the fluid filling device to maintain the fluid pressure value if the fluid pressure value reaches a predetermined comfortable pressure threshold so as to fix the wearable device on the human body.

10. The wearable device according to claim 9, characterized in that: The control mechanism stores user identity information and a predetermined comfortable pressure threshold corresponding to the user identity information, and the control mechanism further includes: An information acquisition unit, used to acquire user identity information; a threshold determination unit, electrically connected to the information acquisition unit, and configured to determine, based on the user identity information, a predetermined comfortable pressure threshold corresponding to the user identity information; The information acquisition unit and the threshold value determination unit are electrically connected to the filling stop unit via electrical signals.

11. The wearable device according to claim 10, characterized in that: The control mechanism also includes: A feature acquisition unit, used to acquire a user's head feature attribute parameter, wherein the user's head feature attribute parameter includes coordinate values ​​of key points of the user's skull; a threshold value calculation unit, connected to the feature acquisition unit by electrical signals, and used to form a head feature vector from the head feature attribute parameters of the user, and calculate a predetermined comfortable pressure threshold value corresponding to the user identity information through the head feature vector; The associated storage unit is electrically connected to the threshold calculation unit and is used to associate and store the predetermined comfortable pressure threshold corresponding to the user identity information with the user identity information.

12. The wearable device according to claim 9, characterized in that: The plurality of elastic bladders include a plurality of first elastic bladders and a plurality of second elastic bladders, the first elastic bladders and the second elastic bladders are arranged at intervals, and the control mechanism further includes: a first charging and discharging unit, used to control the fluid filling device to fill the first elastic bag with fluid at a first predetermined filling time interval, and to discharge the fluid in the first elastic bag at a first predetermined discharge time interval after each filling of the first elastic bag; The second charging and discharging unit is used to control the fluid filling device to fill the second elastic bag with fluid at a second predetermined filling time, and to discharge the fluid in the second elastic bag at a second predetermined discharge time after each filling of the second elastic bag is completed.

13. A method for fixing a wearable device, characterized in that: The wearable device is the wearable device according to claim 1, comprising: Controlling the fluid filling device to fill the plurality of elastic bags with fluid so that the elastic bags are in contact with the human body; Obtaining the fluid pressure value measured by the pressure gauge at every predetermined detection time; If the fluid pressure value reaches a predetermined comfortable pressure threshold, controlling the fluid filling device to maintain the fluid pressure value so that the wearable device is fixed on the human body; The plurality of elastic bladders include a plurality of first elastic bladders and a plurality of second elastic bladders, the first elastic bladders and the second elastic bladders are arranged at intervals, and the method further includes: Control the fluid filling device to fill the first elastic bag with fluid at a first predetermined filling time interval, and discharge the fluid in the first elastic bag at a first predetermined discharge time interval after each filling of the first elastic bag is completed; The fluid filling device is controlled to fill the second elastic bag with fluid at intervals of a second predetermined filling time, and the fluid in the second elastic bag is discharged at intervals of a second predetermined discharge time after each filling of the second elastic bag is completed.

14. The wearable device fixing method according to claim 13, characterized in that: If the fluid pressure value reaches a predetermined comfortable pressure threshold, before controlling the fluid filling device to maintain the fluid pressure value so as to fix the wearable device on the human body, the method further includes: Obtain user identity information; A predetermined comfortable pressure threshold corresponding to the user identity information is determined according to the user identity information.

15. The wearable device fixing method according to claim 14, characterized in that: Also includes: Acquire the user's head characteristic attribute parameters, wherein the user's head characteristic attribute parameters include coordinate values ​​of key points of the user's skull; Combining the head feature attribute parameters of the user into a head feature vector, and calculating a predetermined comfortable pressure threshold corresponding to the user identity information through the head feature vector; The determined predetermined comfortable pressure threshold corresponding to the user identity information is associated with the user identity information and stored.

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