CN109375375B - Weight reducing device of head-mounted equipment - Google Patents
Weight reducing device of head-mounted equipment Download PDFInfo
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- CN109375375B CN109375375B CN201811495167.4A CN201811495167A CN109375375B CN 109375375 B CN109375375 B CN 109375375B CN 201811495167 A CN201811495167 A CN 201811495167A CN 109375375 B CN109375375 B CN 109375375B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0176—Head mounted characterised by mechanical features
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Abstract
The application discloses a weight-reducing device of head-mounted equipment, which comprises a balance disc, a traction wire and a plurality of coiling and uncoiling devices; the balance disc is used for fixedly connecting with the head-mounted equipment, a plurality of coiling and uncoiling devices are hung and installed at different positions above the head-mounted equipment, each coiling and uncoiling device pulls the balance disc through a pulling wire, and the pulling force of each coiling and uncoiling device pulling the balance disc is adjusted along with the position change of the balance disc. According to the application, through a suspension mode, an auxiliary force for upward lifting is provided for the head-mounted equipment by means of the balance disc, the traction wire and the winding and unwinding device, so that the pressure on the head of a user when the head-mounted equipment is used is reduced, the light wearing of the head-mounted equipment is realized, neck fatigue is not caused even if the head-mounted equipment is used for a long time, and the head-mounted equipment is not limited by the gravity of the head-mounted equipment.
Description
Technical Field
The application relates to a weight-reducing device of head-mounted equipment.
Background
With the increasing popularity of virtual reality/augmented reality (VR/AR) devices, how to improve the comfort of use of a headset device and meet the needs of a user for a long-term immersive experience is becoming an important consideration in designing VR/AR devices. The existing VR/AR headset products generally have the problem that the dead weight of the product is large, neck fatigue is easy to occur when the user wears the headset with a long time, and the use experience of the user is seriously affected, so that the weight of the product becomes an important control parameter when the headset is designed. However, the current common design concept for weight reduction only includes trying lighter materials, reducing product thickness, optimizing structural disassembly, selecting lighter components, etc. Limited by the current state of the art and the cost budget, the design thinking can only reduce the weight of the head-mounted product by a small margin, and is insufficient for obviously improving the use experience of users.
Disclosure of Invention
In view of the problem that the prior art wear-type products are uncomfortable to wear due to the large weight, the application provides a weight-reducing device of the head-mounted equipment, so as to overcome the problem.
In order to achieve the above purpose, the present application adopts the following technical scheme:
a weight-reducing device of a head-mounted device comprises a balance disc, a traction wire and a plurality of coiling and uncoiling devices;
the balance disc is used for fixedly connecting with the head-mounted equipment, a plurality of coiling and uncoiling devices are hung and installed at different positions above the head-mounted equipment, each coiling and uncoiling device pulls the balance disc through a pulling wire, and the pulling force of each coiling and uncoiling device pulling the balance disc is adjusted along with the position change of the balance disc.
Optionally, the winding and unwinding device includes: receive and releases the pay-off casing, receive and releases the pay-off motor and receive and releases the pay-off mainboard, receive and releases the pay-off mainboard and receive and release motor to be connected, receive the rotation of pay-off motor through control, adjust the pulling force of pull wire.
Optionally, distance measuring devices are arranged between the coiling and uncoiling devices and the balance disc, so that the distance between each coiling and uncoiling device and the balance disc is measured respectively.
Optionally, the ranging apparatus comprises: an infrared sensor provided on each take-up and pay-off device, and an infrared light emitting element provided on the balance disc.
Optionally, the balance disc is further provided with a balance disc main board and a battery, and the infrared light-emitting element is arranged on the balance disc main board and is powered by the battery.
Optionally, the balance disc further comprises a balance disc shell, the balance disc main board is arranged in the balance disc shell together with the infrared light-emitting element and the battery, and the balance disc shell is provided with an infrared lens aligned with the infrared light-emitting element.
Optionally, the balance disc is further provided with a ball head rotating shaft, and the balance disc is connected with the head-mounted device through the ball head rotating shaft.
Optionally, the ball head of the ball head rotating shaft is connected with a binding belt fixer, the binding belt fixer is provided with a perforation, and the binding belt of the head wearing device passes through the perforation to be connected with the balance disc.
Optionally, the wire winding and unwinding device is provided with four wires.
Optionally, the pay-off and take-up device is suspended and mounted at different positions above the head-mounted device by screws or sliding rails.
In summary, the beneficial effects of the application are as follows:
according to the application, through a suspension mode, an auxiliary force for upward lifting is provided for the head-mounted equipment by means of the balance disc, the traction wire and the winding and unwinding device, so that the pressure on the head of a user when the head-mounted equipment is used is reduced, the light wearing of the head-mounted equipment is realized, neck fatigue is not caused even if the head-mounted equipment is used for a long time, and the head-mounted equipment is not limited by the gravity of the head-mounted equipment.
Drawings
Fig. 1 is a schematic overall structure of a weight-reducing device of a headset according to an embodiment of the present application;
FIG. 2 is an enlarged view of the area indicated by the circle in FIG. 1;
FIG. 3 is an exploded view of a pay-off and take-up device of a weight-reduction device of a headset;
FIG. 4 is an exploded view of a balance disc of the weight-loss device of the headset;
FIG. 5 is a schematic diagram of a tensile force analysis of a weight-loss device of a headset;
FIG. 6 is a schematic illustration of a suspended stowed idle headgear of a headgear weight-reduction device;
in the figure: the pay-off and take-up device 100, the pay-off and take-up device upper case 110, the pay-off and take-up motor 120, the infrared sensor 130, the pay-off and take-up device main board 140, the pay-off and take-up device lower case 150, the traction wire 200, the balance disc 300, the ball head rotating shaft 310, the strap holder 320, the perforation 321, the balance disc upper case 330, the infrared transmitting lens 340, the balance disc main board 350, the infrared light emitting element 360, the battery 370, the balance disc main body 380, the head-mounted device 400 and the strap 410.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the embodiments of the present application will be described in further detail with reference to the accompanying drawings.
In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be internal to two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
The technical conception of the application is as follows: through the mode of hanging, with the help of balance disc, pull wire and coiling and uncoiling device, for the head-mounted equipment provides the auxiliary force of upwards carrying to the pressure that the head received when having reduced the user and using head-mounted equipment, realized that head-mounted equipment's light wears, can not cause neck fatigue yet for a long time use, and not receive head-mounted equipment self gravity restriction.
Fig. 1 to 6 show one embodiment of the weight-saving device of the head-mounted apparatus of the present application. As shown in fig. 1 and 2, the weight-reducing device for a head-mounted apparatus includes: balance disc 300, traction wire 200 and plurality of pay-off and take-up devices 100.
The balance disc 300 is used for being fixedly connected with the head-mounted equipment 400, the plurality of pay-off and take-up devices 100 are hung and installed at different positions above the head-mounted equipment 400, each pay-off and take-up device 100 pulls the balance disc 300 through the pull wire 200, the pulling force of the balance disc 300 pulled by each pay-off and take-up device 100 is adjusted along with the position change of the balance disc 300, the resultant pulling force born by the balance disc 300 is kept vertically upwards and slightly smaller than the gravity of the head-mounted equipment 400, the auxiliary pulling force on the head-mounted equipment 400 is kept vertically upwards, only a small weight is guaranteed to be pressed on the top of the head of a user, and wearing comfort is guaranteed.
Through the above embodiment of the present application, the plurality of pay-off and take-up devices 100 pull the balance disc 300 through the pull wire 200, and provide an auxiliary pulling force with a constant magnitude and vertical upward for the head-mounted device 400 connected with the balance disc 300, so as to reduce the pressure applied to the head when the head-mounted device 400 is used, so that the fatigue problem can not occur even if the user wears the head-mounted device for a long time, and the magnitude of the pulling force is controlled by the pay-off and take-up device 100, so that the problem of limited self-gravity reduction of the head-mounted device 400 is overcome, and the weight reduction effect is better.
As shown in fig. 3, the wire winding and unwinding device 100 includes: the winding and unwinding device comprises a winding and unwinding device shell body consisting of an upper winding and unwinding device shell 110 and a lower winding and unwinding device shell 150, a winding and unwinding motor 120 and a winding and unwinding device main board 140 which are arranged in the winding and unwinding device shell body, wherein the winding and unwinding device main board 140 is connected with the winding and unwinding motor 120, and the pulling force of the traction wire 200 is adjusted by controlling the rotation of the winding and unwinding motor 120. Specifically, the pay-off and take-up device main board 140 adjusts the torque of the pay-off and take-up motor 120 according to the positional relationship between the pay-off and take-up device 100 and the balance disc 300, so as to adjust the tension of each traction wire 200, and make the resultant force of the traction wires 200 pulling the balance disc 300 vertically upwards, so as to partially offset the gravity of the head-mounted device 400.
In the present embodiment, a distance measuring device is disposed between each pay-off and take-up device 100 and the balance disc 300 to measure the distance between each pay-off and take-up device 100 and the balance disc 300.
As shown in fig. 3 and 4 exploded views, the distance measuring device between the pay-off and take-up device 100 and the balance disc 300 includes: an infrared sensor 130 (see fig. 3) provided on each take-up and pay-off device 100, and an infrared light emitting element 360 (see fig. 4) provided on the balance pan 300. The infrared light emitting element 360 of the balance disc 300 emits infrared light, which is received by the infrared sensor 130 of each pay-off and take-up device 100, thereby obtaining the positional relationship of the balance disc 300 with respect to each pay-off and take-up device 100. In practical use, the whole weight-reducing device needs to be calibrated synchronously, and then the distance between the weight-reducing device and the balance disc 300 can be determined according to the time interval when the wire winding and unwinding device 100 receives the infrared signal. Theoretically, as long as the distances between the balance disc 300 and the three pay-off and take-up devices 100 are known, the positions of the balance disc 300 in the three-dimensional space can be determined, and in this embodiment, four pay-off and take-up devices 100 are provided for convenience in adjusting the traction force.
In this embodiment, the balance disc 300 is further provided with a balance disc main board 350 and a battery 370, the infrared light emitting element 360 is disposed on the balance disc main board 350, and is powered by the battery 370 of the balance disc 300, so that the balance disc 300 is free from the constraint of the power supply line, and the power supply line and the traction wire 200 are prevented from winding and pulling.
In this embodiment, the balance disc 300 further includes a balance disc housing surrounded by the upper balance disc housing 330 and the main balance disc body 380, the main balance disc board 350 is disposed in the balance disc housing together with the infrared light emitting element 360 and the battery 370, the upper balance disc housing 330 is provided with an infrared transmitting lens 340 aligned with the infrared light emitting element 360, the infrared light emitting element 360 is protected, and the infrared light emitting element 360 is not blocked from emitting, correspondingly, as seen with reference to fig. 1 and 3, the lower housing 150 of the wire winding and unwinding device is provided with a hole for exposing the infrared sensor 130, and the hole faces the balance disc 300 when mounted, so that the infrared sensor 130 receives the infrared signal better.
Of course, other ranging methods besides the infrared ranging method of the present embodiment can be applied to the present application, and will not be described in detail herein. By acquiring the positional relationship of the balance disc 300 relative to the plurality of coiling and uncoiling devices 100, the angle between each traction wire 200 and the balance disc 300 can be calculated through a simple geometric relationship, and the coiling and uncoiling of the traction wires 200 are controlled according to the angle relationship so as to adjust the tension of the traction wires 200, so that the resultant force of the tension applied by the balance disc 300 is vertically upward.
One possible calculation process is described below in conjunction with the tensile force analysis chart shown in fig. 5.
To ensure that the present application can achieve the desired weight reduction, it is an important design point to always ensure that the pulling force of the four traction wires 200 is vertically upward and constant. First, according to the foregoing description, when the positions A, B, C, D of the four pay-off and take-up devices 100 are known, the spatial position of the balance disc 300, i.e., the position of the point P in fig. 5, can be monitored in real time according to the distance between each pay-off and take-up device 100 and the balance disc 300. For example, a coordinate system is established with the point a in fig. 5 as the origin, the forward directions of X, Y and the Z axis are shown as the point a, then the coordinates of the three points B, C and D are known, and then the coordinates of the point P are determined according to the distances PA, PB, PC and PD, thereby obtaining the angle values required for calculating the respective forces. According to the principle of great reverse direction of Newton's third law acting force and reaction force, the resultant force analysis of four traction wires 200 born by the point P is converted into the analysis of the tensile force born by the point P of four coiling and uncoiling devices 100 respectively, and the four tensile forces are F respectively A 、F B 、F C 、F D Respectively fromA. B, C and D points point to P. Each force can be decomposed into three components in the directions defined in the figure, namely in X, Y and Z directions, so that the sum of the components in the X and Y directions is 0 respectively, and F is the component direction shown in figure 5, in order to make the final resultant force direction be the vertical direction AY -F BY -F CY +F DY ＝0，F AX +F BX -F CX -F DX ＝0。
Because the four pay-off and take-up devices 100 are adopted in the embodiment, additional constraint conditions can be added for enabling each component force to be finally solved, and F can be added for taking the Y direction as an example AY ＝F BY 、F CY ＝F DY Or F AY ＝F CY 、F BY ＝F DY Or other similar conditions. In order to add constraint F AY ＝F BY 、F CY ＝F DY The derivation is done for example. Suppose F AZ F can be deduced from the trigonometric function relation AX 、F AY And F AY ＝F BY F can be obtained according to the trigonometric function relation BX 、F BZ F can be obtained by the same method C And F D Each of 3 components. The angles required in the calculation process can be obtained by calculating the coordinates of the P points according to the coordinate calculation process of the example and deducing the positions of the five points in space A, B, C, D, P. Finally, the sum of the Z-direction components of the four forces is a function of F, and the sum of the Z-direction components of the four forces is a certain value which is initially set, so that the force F A 、F B 、F C 、F D Are all computationally available and unique. In addition, the initial set total force should be slightly less than the weight force experienced by the headset 400, i.e.: when the head-mounted device 400 is worn and used, the force of the balance disc 300 for lifting the head-mounted device 400 is smaller than the gravity of the head-mounted device 400, so that the head-mounted device 400 can be guaranteed to be always pressed on the head of a user, the head of the user cannot be lifted, the head-mounted device 400 is stably worn, and the problem of light leakage caused by loose upward movement cannot occur. Whether the user wears the head-mounted device 400 to horizontally move or to vertically move such as to squat or jump, the wire winding and unwinding device 100 can be real-time according to the position relationship with the balance disc 300The adjustment traction is calculated to maintain a vertical upward traction effect on the headset 400.
When the user stops using the headset 400, the weight-reducing device is turned off, and the pay-off and take-up device 100 can pull the idle headset 400 to a high place for storage by tightening the pull wire 200, as shown in fig. 6. For example, after the use is finished, the user can take off the head-mounted device 400, conveniently control the weight-reducing device to take up the wire through a remote controller, a handle, a voice command or a gesture operation command, so that the resultant force of the pulling wire 200 is larger than the total weight of the balance disc 300 and the head-mounted device 400, pull the head-mounted device 400 to the top of the house, and hang and store the head-mounted device; when the device is used again, the weight-reducing device is controlled to be placed on the line in the same way, so that the resultant force of pulling force is smaller than the total weight of the balance disc 300 and the head-mounted device 400, and the head-mounted device 400 is slowly put down, so that the device is worn again for use.
When the weight-reducing device is actually used, the fixed positions of the four pay-off and take-up devices 100 can be determined according to the space required by experience content, and the space surrounded by the pay-off and take-up devices 100 is the maximum range of permitted activities of users. The line winding and unwinding device 100 can be suspended in a variety of ways at different locations over the head mounted device. For example, the pay-off and take-up device 100 may be mounted to the roof of a house by screw fixation. Or, take-up and pay-off device 100 also can be installed at the house top through the slide rail, when the user needs the adjustment range of motion, slide take-up and pay-off device 100 along the slide rail, when adjusting to suitable position, relative slide rail locking take-up and pay-off device 100 is in order to confirm the position, and such mounting means is convenient for adjust more, and the suitability is stronger. When two or more users use the head-mounted equipment at the same time, a set of weight-reducing device is required to be configured for each head-mounted equipment, the movement ranges limited by the devices cannot coincide and a certain safety distance is reserved between the movement ranges, and the conditions of winding, body collision and the like during use are avoided.
As shown in the enlarged view of fig. 2 and the exploded view of fig. 4, in this embodiment, the balance disc 300 is further provided with a ball pivot 310, and the balance disc 300 is connected to the head-mounted device 400 through the ball pivot 310, so as to allow the head-mounted device 400 to twist or the like relative to the balance disc 300, so as to adapt to the rotation or micro-swing of the head during the use of the user. Also, a strap holder 320 is coupled to the ball of the ball pivot 310, the strap holder 320 is provided with a through hole 321, and a strap 410 (see an enlarged view of fig. 2) of the head-mounted device 400 passes through the through hole 321 to be coupled to the balance disc 300.
In practical applications, when the user uses the headset 400, there is not only a linear motion X, Y, Z in space but also a rotation about the Z axis and a swinging about the X, Y axis, and there is also a slight delay and adjustment error of the pay-off and take-up device 100. In order to avoid the influence of the deflection force caused by the above reasons on the immersion experience of the user, the balance disc 300 of the embodiment is additionally provided with the ball-head rotating shaft 310, and forms a ball-head universal joint mechanism together with the binding band fixer 320, so that the device below the ball-head rotating shaft 310 can be allowed to generate independent rotation and swing motions, thereby adapting to the flexible movement requirement of the head-mounted device 400, and enabling the head-mounted device 400 after weight reduction to be still comfortable and natural to wear.
Only one configuration of strap holder 320 is shown in fig. 2, and in practice, the strap holder 320 in this embodiment may be adapted to fit most existing VR/AR headsets, depending on the respective strap 410 design of the existing headset 400.
The foregoing is merely a specific embodiment of the application and other modifications and variations can be made by those skilled in the art in light of the above teachings. It is to be understood by persons skilled in the art that the foregoing detailed description is provided for the purpose of illustrating the application more fully, and that the scope of the application is defined by the appended claims.
Claims (8)
1. The weight-reducing device of the head-mounted equipment is characterized by comprising a balance disc, a traction wire and a plurality of coiling and uncoiling devices;
the balance disc is used for being fixedly connected with the head-mounted equipment, the plurality of coiling and uncoiling devices are hung and installed at different positions above the head-mounted equipment, each coiling and uncoiling device pulls the balance disc through a pulling wire, and the pulling force of each coiling and uncoiling device pulling the balance disc is adjusted along with the position change of the balance disc;
the take-up and pay-off device comprises: the winding and unwinding device comprises a winding and unwinding device shell, a winding and unwinding motor and a winding and unwinding device main board, wherein the winding and unwinding device main board is connected with the winding and unwinding motor, and the pulling force of the traction wire is adjusted by controlling the rotation of the winding and unwinding motor;
distance measuring devices are arranged between the coiling and uncoiling devices and the balance disc, so that the distance between each coiling and uncoiling device and the balance disc is measured respectively.
2. The headgear weight-reduction device of claim 1, wherein the ranging device comprises: an infrared sensor arranged on each winding and unwinding device and an infrared light-emitting element arranged on the balance disc.
3. The head-mounted device weight-reducing apparatus according to claim 2, wherein the balance disc is further provided with a balance disc main board and a battery, and the infrared light emitting element is provided on the balance disc main board, and is powered by the battery.
4. The head mounted device weight reduction apparatus of claim 3, wherein the balance disc further comprises a balance disc housing, the balance disc motherboard is disposed within the balance disc housing along with the infrared light emitting element and the battery, the balance disc housing is provided with an infrared transmitting lens aligned with the infrared light emitting element.
5. The weight-reducing device for a head-mounted apparatus according to claim 1, wherein the balance disc is further provided with a ball-head rotating shaft, and the balance disc is connected with the head-mounted apparatus through the ball-head rotating shaft.
6. The weight loss device of the head-mounted equipment according to claim 5, wherein the ball head of the ball head rotating shaft is connected with a strap fixer, the strap fixer is provided with a perforation, and the strap of the head-mounted equipment passes through the perforation to be connected with the balance disc.
7. The head-mounted equipment weight-reducing device according to any one of claims 1 to 6, wherein four pay-off and take-up devices are provided.
8. The headgear weight-reduction device according to any one of claims 1-6, wherein the pay-off and take-up device is suspended by screws or rails at different locations over the headgear.
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| CN201811495167.4A CN109375375B (en) | 2018-12-07 | 2018-12-07 | Weight reducing device of head-mounted equipment |
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| CN201811495167.4A CN109375375B (en) | 2018-12-07 | 2018-12-07 | Weight reducing device of head-mounted equipment |
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| CN109375375B true CN109375375B (en) | 2023-10-13 |
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| CN111694152B (en) * | 2019-03-15 | 2021-09-14 | 华为技术有限公司 | Head-mounted display and virtual reality system |
| CN110797828B (en) * | 2019-11-18 | 2020-11-24 | 徐州柚创谷智能科技有限公司 | Intelligence VR helmet pencil hanger |
| US11803063B2 (en) | 2020-08-18 | 2023-10-31 | Universal City Studios Llc | Tether actuation systems and methods for visualization device |
| CN112998399B (en) * | 2021-03-26 | 2022-03-11 | 福州外语外贸学院 | Data arrangement frame for accountant |
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