CN111273450A - VR experience helmet and balance adjusting method thereof - Google Patents
VR experience helmet and balance adjusting method thereof Download PDFInfo
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- CN111273450A CN111273450A CN202010292786.4A CN202010292786A CN111273450A CN 111273450 A CN111273450 A CN 111273450A CN 202010292786 A CN202010292786 A CN 202010292786A CN 111273450 A CN111273450 A CN 111273450A
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Abstract
The invention provides a VR experience helmet and a balance adjusting method thereof, and belongs to the technical field of VR equipment. A VR experience helmet comprises a helmet main body, an imaging component, a rack belt, a balance block, a balance detection sensor, a controller and a rechargeable battery; according to the invention, the imaging component, the rack belt and the balance detection sensor are arranged on the helmet main body, and the balance block is arranged on the rack belt in a sliding manner, so that when a wearer does head movement, the VR experience helmet detects and judges whether the head posture is abnormal in real time through the balance detection sensor, the movement of the balance block is automatically controlled when the head posture is abnormal, the abnormal head posture of the wearer is prompted to be corrected in time through changing the gravity center of the helmet, and meanwhile, when the head posture is recovered to be normal, the balance block can be controlled to return to the initial position, so that the stress balance of the helmet main body is ensured, the problem that the helmet is heavy in weight and light in tail is avoided, the wearing comfort is improved, and the market competitiveness.
Description
Technical Field
The invention relates to the technical field of VR (Virtual Reality in English), in particular to a VR experience helmet and a balance adjusting method thereof.
Background
VR technology is a new and popular technology in the current market and is widely used in all industries.
The VR helmet is used as a derivative product of VR technology, vision and auditory sense of a person to the outside are sealed by utilizing the head-mounted display, a user is guided to generate a sense of the person in a virtual environment, such as familiar and popular virtual reality games and films, and in some high-end application environments, such as an individual combat system applied to modern military, soldiers carry out simulation training by wearing the VR helmet, simulation of a training environment is achieved, and combat capability is improved. However, current VR helmet, in user's motion process, can lead to the equilibrium problem because of the motion for wearing the travelling comfort and reducing, influence use experience, in addition, because the formation of image subassembly of current VR helmet sets up in eye the place ahead, and the head-mounted structure is comparatively light, has consequently caused the light problem of head heavy tail, has influenced the equilibrium equally and has worn the travelling comfort, and product performance is relatively poor.
Disclosure of Invention
To solve the above problems in the prior art, the present invention aims to provide a VR experience helmet and a balance adjustment method thereof, wherein an adjustable rack belt is arranged on an outer edge of a VR helmet main body, a balance block is arranged on the rack belt in a sliding manner, and a driving motor with a gear is arranged in the balance block, so that when the driving motor rotates, the position of the balance block on the outer edge of the main body is changed through the matching of the gear and the rack belt, and further the gravity center of the helmet is changed to prompt a wearer that the head posture of the wearer is abnormal and needs to be corrected in time.
The specific technical scheme is as follows:
providing a VR experience helmet comprising:
the helmet body is arranged in a hat shape;
the imaging assembly is arranged right in front of the helmet main body and corresponds to the positions of the eyes of a user;
the rack belt is wound at the outer side edge of the lower end opening of the helmet main body, meanwhile, one end of the rack belt is fixed on the helmet main body, and the other end of the rack belt is externally detachably connected to the helmet main body;
the balance block is arranged on the rack belt in a sliding manner, a driving motor is arranged in the balance block, and a driving shaft of the driving motor is provided with a gear meshed with the rack belt;
a balance detection sensor assembly to detect pose values of the VR experience helmet as deflected, the balance detection sensor assembly disposed at different locations on the imaging assembly and/or the helmet body;
the controller comprises a main control circuit assembly and a sub-control circuit assembly, the main control circuit assembly is arranged in the imaging assembly and is in communication connection with the balance detection sensor assembly and the sub-control circuit assembly, the sub-control circuit assembly is arranged in the balance block and is electrically connected with the driving motor, and the sub-control circuit assembly is used for driving the driving motor to work according to a driving signal sent by the main control circuit assembly;
the rechargeable battery is arranged in the balance block, a charging port is arranged on the balance block, and the charging port is electrically connected with the rechargeable battery and is used for charging the rechargeable battery after being externally connected with a charging power supply; the rechargeable battery supplies power to the driving motor and the sub-control circuit assembly.
As a preferable scheme of the present invention, the rack belt includes a fixed rack and a guide slide bar, the fixed rack is disposed in a strip shape, a plurality of tooth-shaped structures are disposed on the fixed rack along a length direction of the fixed rack, the guide slide bar is disposed on the fixed rack in parallel, the guide slide bar is disposed at edges of an upper side and a lower side of the fixed rack, a plurality of clamping blocks disposed at intervals are disposed on the fixed rack along the length direction of the fixed rack, the clamping blocks are disposed at a side close to the helmet main body, and a plurality of clamping holes corresponding to the clamping blocks are disposed at an outer edge of a lower end opening of the helmet main body.
As a preferable scheme of the present invention, the balance weight further includes a housing, a pulley, and a balance weight, one side of the housing is provided with a chute slidably disposed on the guide slide, and a plurality of pulleys are disposed on the housing and in the chute, and all the pulleys are abutted against the guide slide, and the balance weight is disposed in the housing.
As a preferable aspect of the present invention, the driving motor is disposed in the housing, a connection port is disposed in a middle area of the sliding groove on the housing, and one side of the gear extends out of the connection port into the sliding groove.
As a preferable scheme of the present invention, the sliding groove is arranged in a [ "shape, and bayonets are provided at both the upper end and the lower end of the sliding groove, and the bayonets at the upper end and the lower end are respectively clamped on the guide sliding strips at the edges of the upper side and the lower side of the fixed rack.
As a preferable scheme of the invention, a limiting block is arranged on the helmet main body and on one side of the detachable connection of the rack belt, a jack is arranged on the limiting block, and one end of the detachable connection of the rack belt passes through the jack.
As a preferable scheme of the invention, the opening at the lower end of the helmet main body is provided with a plurality of open slots extending from the upper part to the lower part, the slots of the open slots extend to the opening at the lower end, and the open slots are internally provided with cloth.
As a preferred aspect of the present invention, the balance detection sensor assembly includes a balance detection sensor and a wireless signal transceiver communicatively connected to the balance detection sensor, and the wireless signal transceiver is configured to transmit the attitude value of the VR experiential helmet, which is monitored by the balance detection sensor in real time, to the master control circuit assembly.
In a preferred embodiment of the present invention, the balance detecting sensor is a vertical gyroscope.
As a preferred scheme of the present invention, the main control circuit assembly includes an MCU micro control processor and a wireless signal transceiver connected to the MCU micro control processor, and the wireless signal transceiver is used to implement communication connection between the main control circuit assembly and the balance sensor assembly and the sub-control circuit assembly.
As a preferred scheme of the present invention, the sub-control circuit assembly includes an MCU micro-control processor and a wireless signal transceiver connected to the MCU micro-control processor, and the wireless signal transceiver is used to implement communication connection between the sub-control circuit assembly and the main control circuit assembly and the balance sensor assembly.
As a preferable scheme of the present invention, a specific model of the MCU micro-control processor in the main control circuit assembly or the MCU micro-control processor in the sub-control circuit assembly is STM32F413ZHJ 6.
The invention also provides a balance adjusting method of the VR experience helmet, which is used for adjusting the balance degree of the VR experience helmet and comprises the following steps:
step S1, each balance detection sensor assembly transmits the current attitude value of the VR experience helmet monitored in real time to a first MCU micro control processor in the main control circuit assembly;
step S2, the first MCU micro-control processor calculating a helmet average attitude deviation degree of the corresponding balance detection sensor assembly at a setting position on the VR experience helmet based on the received attitude value;
step S3, based on the calculated average attitude deviation of the helmet, judging whether the current attitude of the VR experience helmet is abnormal,
if yes, go to step S4;
if not, no response is made;
step S4, the main control circuit assembly generates a helmet attitude abnormal signal and sends the helmet attitude abnormal signal to a second MCU micro control processor in the sub control circuit assembly, the second MCU micro control processor receives the helmet attitude abnormal signal and then generates a motor driving signal to send to the driving motor, and the driving motor drives the balance block to slide on the rack belt according to the received motor driving signal so as to prompt a wearer that the current helmet attitude abnormal needs to be corrected in time by changing the gravity center of the VR experience helmet.
As a preferable aspect of the present invention, in the step S2, the helmet average attitude deviation of the balance detection sensor assembly at the setting position on the VR experiential helmet includes a helmet roll angle average attitude deviation and a pitch angle average attitude deviation.
As a preferable aspect of the present invention, the method of calculating the average attitude deviation degree of the roll angle includes:
calculating an average value of the current roll angle attitude values of the VR experience helmet monitored by all the balance sensor components in real time;
calculating the roll angle average attitude deviation degree at the set position of each balance detection sensor assembly by the following formula:
in the above formula, the first and second carbon atoms are,
means for representing the yaw angle mean attitude deviation for the VR experience helmet disposed at an A position on the VR experience helmet;
As a preferable aspect of the present invention, the method of calculating the pitch angle average attitude deviation degree includes:
calculating an average value of current pitch angle attitude values of the VR experience helmet, which are monitored by all the balance sensor assemblies in real time;
calculating the pitch angle average attitude deviation degree at the set position of each balance detection sensor assembly by the following formula:
in the above formula, DθAMeans for representing the yaw angle mean attitude deviation for the VR experience helmet disposed at an A position on the VR experience helmet;
θAexperiencing the roll angle pose value of the helmet for the VR at the A position;
As a preferable aspect of the present invention, in step S3, the method for determining whether the current posture of the VR experiential helmet is abnormal includes:
when the average attitude deviation of the roll angles at the set positions of all the balance sensor assemblies exceeds a preset first threshold value, and/or when the average attitude deviation of the pitch angles at the set positions of all the balance sensor assemblies exceeds a preset second threshold value, judging that the current attitude of the experience helmet of the VR is abnormal, and entering the step S4.
The positive effects of the technical scheme are as follows:
above-mentioned VR experiences helmet and balance adjustment method thereof, through be provided with the rack on helmet main body, and the rack is taken and is provided with the balancing piece, and set up in the balance detection sensor, make the person of wearing when the motion, the head gesture is detected out to accessible balance detection sensor, and the focus of balance piece motion through changing the helmet is controlled in automation, need correct in time in order to indicate the person of wearing person's head gesture to appear unusually, simultaneously when the head gesture resumes just, steerable balancing piece reverts to initial position, in order to guarantee helmet main body stress balance, avoided the helmet to appear the problem that the head is heavy the tail light, wearing comfort has been promoted, promote product market competition.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a block diagram of an embodiment of a VR experience helmet of the present invention;
FIG. 2 is a longitudinal cross-sectional view of the counterbalances in accordance with a preferred embodiment of the present invention;
fig. 3 is a diagram of method steps for a VR experiential helmet balance adjustment method according to an embodiment of the present invention.
In the drawings: 1. a helmet main body; 11. a clamping hole; 12. a limiting block; 13. an open slot; 131. distributing; 2. an imaging assembly; 3. a rack belt; 31. fixing a rack; 32. a guide slider; 311. a clamping block; 4. a counterbalance; 41. a drive motor; 42. a gear; 43. a charging port; 44. a housing; 45. a pulley; 46. a balancing weight; 47. a rechargeable battery; 441. a chute; 442. a bayonet; 5. a balance detection sensor assembly; 6. and a controller.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the present invention easy to understand, the following embodiments specifically describe the technical solutions provided by the present invention with reference to fig. 1 to 2, but the following contents are not to be taken as limitations of the present invention.
Fig. 1 is a block diagram of an embodiment of a VR experience helmet of the present invention; fig. 2 illustrates a partial cross-sectional view of an embodiment of a VR experience helmet of the present invention. As shown in fig. 1 and 2, the VR experience helmet provided by this embodiment includes: a helmet main body 1, an imaging unit 2, a rack belt 3, a weight 4, a balance detection sensor unit 5, a controller 6, and a rechargeable battery 47.
Specifically, helmet body 1 is the setting of cap form, wears in wearer's head, and helmet body 1's lower extreme opening has made things convenient for the laminating degree of helmet body 1 with wearer's head, promotes the stability and the travelling comfort that the helmet was worn. In addition, a plurality of open slots 13 that extend to the lower part from upper portion are seted up to helmet main body 1's lower extreme opening part, and the notch of open slot 13 extends to the lower extreme opening part for helmet main body 1's lower extreme opening part's size is collapsible, thereby adapts to the size of different wearers' head types, and adaptability is higher, and the result design is more reasonable.
Specifically, imaging component 2 sets up in helmet body 1's dead ahead, and corresponds with the position of the person's of wearing eyes, realizes virtual formation of image through imaging component 2, lets the person of wearing acquire imaging information, realizes basic VR and experiences to, the satisfying person's facial form that imaging component 2 that corresponds the person's of wearing eyes position can be better, promotes experience and feels.
Specifically, the toothed belt 3 is wound on the outer side edge of the lower end opening of the helmet main body 1, meanwhile, one end of the toothed belt 3 is fixed on the helmet main body 1, the other end is detachably connected to the helmet main body 1, so that when a wearer pulls the detachable end of the rack belt 3, the opening groove 13 at the lower opening of the helmet body 1 is deformed, thereby enabling the lower end opening of the helmet main body 1 to contract, fixing the detachable end of the rack belt 3 on the helmet main body 1 after the lower end opening of the helmet main body 1 contracts, the locking of the size of the lower end opening of the helmet main body 1 can be realized, the helmet is suitable for the head shape of a smaller wearer, the operation is more convenient, meanwhile, the toothed structure on the rack belt 3 can also prevent the problem of sliding when the rack belt 3 is pulled, so that the cost is reduced, the adjusting process is more time-saving and labor-saving, and the structural design is more reasonable.
Specifically, the balance weight 4 is slidably disposed on the rack belt 3, so that the balance weight 4 can slide along the arrangement direction on the rack belt 3, and the position of the balance weight 4 relative to the helmet main body 1 can be adjusted, thereby providing a condition for realizing the balance of the movement subsequently. And, be provided with driving motor 41 in the balancing piece 4, and be provided with the gear 42 with rack belt 3 meshing on driving motor 41's the output shaft, at this moment, under driving motor 41's effect, gear 42 and rack meshing, driving motor 41 drives gear 42 and rotates to make balancing piece 4 move on rack belt 3, provide the structural basis for realizing the automatic balance of helmet, structural design is more reasonable.
Specifically, the balance detection sensor assembly 5 comprises a balance detection sensor and a wireless signal transceiver in communication connection with the balance detection sensor, and the wireless signal transceiver is used for transmitting the attitude value of the VR experience helmet monitored by the balance detection sensor in real time to the master control circuit assembly. The balance detection sensor is used for detecting the attitude value of the helmet during deflection, can realize real-time detection of the head attitude of a wearer, provides a data reference basis for subsequent automatic balance realization, and ensures the reliability of balance adjustment. And, balance detection sensor assembly 5 sets up on formation of image subassembly 2 and helmet main body 1 for all be provided with balance detection sensor assembly 5 on the different positions of helmet, guaranteed data acquisition's comprehensiveness, accuracy, thereby guaranteed balance adjustment's validity, promoted user's use and experienced.
The balance detection sensor is preferably a vertical gyroscope.
Specifically, the controller 6 includes a main control circuit component and a sub-control circuit component, the main control circuit component is disposed in the imaging component 2 and is in communication connection with the balance detection sensor component 5, and the sub-control circuit component is disposed in the balance block 4 and is in communication connection with the driving motor 41.
The main control circuit component at least comprises an MCU micro control processor and a wireless signal transceiver which is in communication connection with the MCU micro control processor, and the wireless signal transceiver can be an existing wifi module, an NB-loT wireless signal transceiver, a 4G/5G wireless signal transceiver and the like. And the wireless signal transceiver in the main control circuit assembly is used for realizing communication connection with the main control circuit assembly, the balance sensor assembly and the sub-control circuit assembly.
The sub-control circuit assembly at least comprises an MCU micro control processor and a wireless signal transceiver connected with the MCU micro control processor, and the wireless signal transceiver is used for realizing the communication connection of the sub-control circuit assembly with the main control circuit assembly and the balance sensor assembly. Likewise, the wireless signal transceiver may be an existing wifi module, NB-loT wireless signal transceiver, 4G/5G wireless signal transceiver.
More preferably, the MCU micro-control processor in the main control circuit assembly or the MCU micro-control processor in the sub-control circuit assembly is an MCU chip manufactured by ST corporation with model number STM32F413ZHJ 6.
The process for automatically adjusting the balance degree of the helmet by the VR experience helmet provided by the embodiment of the invention is briefly described as follows:
the balance detection sensors arranged at all positions on the helmet detect the posture of the helmet in real time, the detected real-time posture value of the helmet is transmitted to the main control circuit assembly to judge whether the posture of the helmet is abnormal or not, if the detected posture value is abnormal, the main control circuit assembly generates a posture abnormal signal and transmits the posture abnormal signal to the main control circuit assembly, the main control circuit assembly receives the posture abnormal signal and then generates a motor driving signal and transmits the motor driving signal to the driving motor, the driving motor receives the driving signal and then executes driving action, the driving balance block moves on the rack belt, and the helmet center of gravity is changed to prompt a wearer that the current posture of the helmet is abnormal and needs to be corrected in. When the posture of the head of a wearer is actively corrected, the main control circuit component cannot judge that the posture of the helmet is abnormal, and the driving balance block returns to the initial position (namely, the position opposite to the imaging component) to turn off the driving motor to work.
Specifically, the rechargeable battery 47 is arranged in the balance block 4, the balance block 4 is provided with a charging port 43, and the charging port 43 is electrically connected with the rechargeable battery 47 and is used for charging the rechargeable battery 47 after being externally connected with a charging power supply; a rechargeable battery 47 powers the drive motor 41 and the sub-control circuit components.
More specifically, set up in rack belt 3 of helmet main body 1's lower extreme opening part, it is preferred, rack belt 3 be the plastics material, both have certain toughness, do benefit to the support to balancing piece 4, also can realize deformation simultaneously, adapt to the regulation of helmet main body 1's lower extreme opening size. The rack belt 3 further includes a fixed rack 31 and a guide slide bar 32, the fixed rack 31 is disposed in a strip shape, and a plurality of tooth-shaped structures are disposed on the fixed rack 31 along a length direction thereof, and are used in cooperation with the gear 42. Meanwhile, the guide sliding strips 32 are arranged on the fixed rack 31 in parallel, and the guide sliding strips 32 are arranged at the edges of the upper side and the lower side of the fixed rack 31, so that the guide sliding strips 32 can correspond to the fixed rack 31 in the length direction of the fixed rack 31, the balance block 4 can be guided by the guide sliding strips 32 in the stroke range, and the reliability and the stability of the movement of the balance block 4 are ensured. Meanwhile, a plurality of clamping blocks 311 which are arranged at intervals are arranged on the fixed rack 31 along the length direction of the fixed rack, the clamping blocks 311 are arranged on one surface close to the helmet main body 1, a plurality of clamping holes 11 corresponding to the clamping blocks 311 are formed in the edge of the outer side of the lower end opening of the helmet main body 1, the clamping blocks 311 are matched with the clamping holes 11, the fixing rack 31 can be detachably mounted and fixed on the helmet main body 1, meanwhile, the size of the lower end opening of the helmet main body 1 is adjusted, and the structural design is more reasonable.
More specifically, the balancing block 4 further includes a housing 44, a pulley 45 and a balancing block 46, one side of the housing 44 is provided with a sliding groove 441 on the guide sliding strip 32, through the cooperation of the sliding groove 441 and the guide sliding strip 32, the installation of the balancing block 4 on the rack belt 3 is realized, and a plurality of pulleys 45 are arranged on the housing 44 and in the sliding groove 441, and the pulleys 45 are all abutted against the guide sliding strip 32, so that when the driving motor 41 in the balancing block 4 operates, the pulleys 45 can reduce the friction between the sliding groove 441 and the guide sliding strip 32 through the rotation of the pulleys 45, and the movement of the balancing block 4 is facilitated. Moreover, the weight 46 is disposed in the housing 44, so that the user can select the weight 46 with a proper weight according to actual use requirements, the adaptability is higher, and the structural design is more reasonable.
More specifically, driving motor 41 sets up in casing 44, a connecting port has been seted up to the middle zone that just is located spout 441 on casing 44, stretch out to spout 441 in the connecting port is followed to one side of gear 42, make casing 44 can wrap up driving motor 41 completely, the realization is to driving motor 41's protection, avoid driving motor 41 to expose in the external world and bring the problem of damage, also can guarantee the meshing of gear 42 and rack area 3 simultaneously, realize power transmission, guarantee the reliability of balancing piece 4 motion, structural design is more reasonable.
More specifically, the sliding groove 441 is arranged in a shape like a Chinese character [, and at the moment, an opening is formed in the side edge of the sliding groove 441, so that the sliding groove 441 can be conveniently installed on the rack belt 3 from the opening of the side edge. And, the upper end and the lower extreme of spout 441 all are provided with bayonet 442, and bayonet 442 of upper end and lower extreme block respectively on the direction draw runner 32 of the upside of fixed rack 31 and the border department of downside for bayonet 442 of the upper end and the lower extreme of spout 441 can cooperate with direction draw runner 32, guarantee that spout 441 and rack area 3 complex stability and reliability are higher, for the steady movement of balancing piece 4 provides the structural foundation, thereby for the automatic balance adjustment who realizes the helmet provides the condition, structural design is more reasonable.
More specifically, helmet main body 1 is last and be located rack area 3 and can dismantle one side of connecting and be provided with stopper 12, the jack has been seted up on stopper 12, and rack area 3 can dismantle the one end of connecting and pass from the jack, through the jack on stopper 12, rack area 3 has been guaranteed the regulation on helmet main body 1, adapt to helmet main body 1's the regulation of lower extreme opening size, it is spacing to 4 movements of balancing piece also to realize through stopper 12 simultaneously, prevent that balancing piece 4 from excessively moving and causing the problem that drops or damage, structural design is more reasonable, the safety guarantee nature is higher.
More specifically, the balance detection sensor is preferably a vertical gyroscope, the vertical gyroscope is used as a common device for balance detection, attitude values (including a roll angle attitude value and a pitch angle attitude value) of helmet movement can be detected, the technology is mature, the detection reliability is higher, and the data reference value is higher.
More specifically, all be provided with cloth 131 in each open slot 13 of the lower extreme opening part of helmet main body 1, seal open slot 13 through cloth 131, neither can produce the influence to the deformation of open slot 13, can adapt to the regulation of the lower extreme opening size of helmet main body 1, also can prevent simultaneously that user's hair from stretching out in open slot 13 and the card from going into between gear 42 and the rack area 3, avoided the safety risk that brings the user, structural design is more reasonable.
In addition, the embodiment also provides a balance adjustment method of the VR experience helmet, which is used for adjusting the balance degree of the VR experience helmet, referring to fig. 3, the balance adjustment method includes the following steps:
step S1, each balance detection sensor component transmits the current attitude value of the VR experience helmet monitored in real time to a first MCU micro control processor in the main control circuit component;
step S2, the first MCU micro-control processor calculates the helmet average attitude deviation degree of the corresponding balance detection sensor assembly at the set position on the VR experience helmet based on the received attitude value;
step S3, based on the calculated average attitude deviation of the helmet, judging whether the current attitude of the VR experience helmet is abnormal,
if yes, go to step S4;
if not, no response is made;
and step S4, the main control circuit assembly generates a helmet attitude abnormal signal and sends the helmet attitude abnormal signal to a second MCU micro control processor in the sub control circuit assembly, the second MCU micro control processor receives the helmet attitude abnormal signal and then generates a motor driving signal to send to a driving motor, and the driving motor drives a balance block to slide on the rack belt according to the received motor driving signal so as to prompt a wearer that the current helmet attitude abnormal needs to be corrected in time by changing the VR experience helmet center of gravity.
In step S2, the helmet average attitude deviation at the setup position of the balance detection sensor assembly on the VR experiential helmet includes a helmet roll angle average attitude deviation and a pitch angle average attitude deviation.
The first MCU micro-control processor or the second MCU micro-control processor is preferably an MCU chip manufactured by ST corporation and having model number STM32F413ZHJ6
The method for calculating the average attitude deviation degree of the roll angle comprises the following steps:
step L1, calculating the average value of the current attitude values of the horizontal inclination angles of the VR experience helmet monitored by all the balance detection sensor components in real time; mean value of the attitude of the roll
The calculation method of (1) is that the sum of the roll angle attitude values of the VR experience helmet detected by all the balance detection sensors at the same moment is divided by the number of the balance detection sensors;
step L2, the roll angle average attitude deviation degree at the set position of each balance detecting sensor assembly is calculated by the following formula:
in the above formula, the first and second carbon atoms are,
representing a yaw angle average attitude deviation of a VR experience helmet disposed at a position A on the VR experience helmet;
The method for calculating the mean attitude deviation degree of the pitch angle comprises the following steps:
step M1, calculating the average value of the current pitch angle attitude values of the VR experience helmet monitored by all balance detection sensor components in real time; the calculation method of the average value of the attitude values of the pitch angles and the calculation method of the average value of the attitude values of the roll angles are not repeated herein;
step M2, calculating the pitch angle average attitude deviation degree at the set position of each balance detecting sensor assembly by the following formula:
in the above formula, DθAFor representing a pitch angle mean attitude deviation of a VR experience helmet disposed at a location A on the VR experience helmet;
θAexperiencing a pitch angle attitude value of the helmet for the VR at the A position;
In step S3, the method for determining whether the current posture of the VR experience helmet is abnormal includes:
when the average attitude deviation of the roll angles of all the balance detection sensor assemblies at the set positions exceeds a preset first threshold value and/or when the average attitude deviation of the pitch angles of all the balance detection sensor assemblies at the set positions exceeds a preset second threshold value, the current attitude of the VR experience helmet is judged to be abnormal and the step S4 is entered.
When the VR experience helmet cannot detect the abnormal posture of the helmet again, the MCU micro control processor in the main control circuit assembly controls the driving motor to drive the balance block to the initial position (the position right opposite to the imaging assembly) and then stops the driving motor to work.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (17)
1. A VR experience helmet, comprising:
the helmet body is arranged in a hat shape;
the imaging assembly is arranged right in front of the helmet main body and corresponds to the positions of the eyes of a user;
the rack belt is wound at the outer side edge of the lower end opening of the helmet main body, meanwhile, one end of the rack belt is fixed on the helmet main body, and the other end of the rack belt is externally detachably connected to the helmet main body;
the balance block is arranged on the rack belt in a sliding manner, a driving motor is arranged in the balance block, and a driving shaft of the driving motor is provided with a gear meshed with the rack belt;
a balance detection sensor assembly to detect pose values of the VR experience helmet as deflected, the balance detection sensor assembly disposed at different locations on the imaging assembly and/or the helmet body;
the controller comprises a main control circuit assembly and a sub-control circuit assembly, the main control circuit assembly is arranged in the imaging assembly and is in communication connection with the balance detection sensor assembly and the sub-control circuit assembly, the sub-control circuit assembly is arranged in the balance block and is electrically connected with the driving motor, and the sub-control circuit assembly is used for driving the driving motor to work according to a driving signal sent by the main control circuit assembly;
the rechargeable battery is arranged in the balance block, a charging port is arranged on the balance block, and the charging port is electrically connected with the rechargeable battery and is used for charging the rechargeable battery after being externally connected with a charging power supply; the rechargeable battery supplies power to the driving motor and the sub-control circuit assembly.
2. The VR experience helmet of claim 1, wherein the rack belt comprises a fixed rack and a guide slide, the fixed rack is configured as a strip, the fixed rack is provided with a plurality of teeth along a length direction thereof, the guide slide is disposed side by side on the fixed rack, the guide slide is disposed at an edge of an upper side and a lower side of the fixed rack, meanwhile, the fixed rack is provided with a plurality of clamping blocks arranged at intervals along the length direction thereof, the clamping blocks are disposed at a side close to the helmet body, and a plurality of clamping holes corresponding to the clamping blocks are disposed at an outer edge of a lower opening of the helmet body.
3. The VR experience helmet of claim 2, wherein the balance weight further comprises a housing, a pulley, and a weight, one side of the housing is provided with a sliding groove slidably disposed on the guide slider, a plurality of pulleys are disposed on the housing and in the sliding groove, the pulleys all abut against the guide slider, and the weight is disposed in the housing.
4. The VR experience helmet of claim 3, wherein the drive motor is disposed within the housing, a connection port is formed on the housing in a middle region of the sliding slot, and a side of the gear extends out of the connection port into the sliding slot.
5. The VR experience helmet of claim 4, wherein the sliding slot is in a shape like a Chinese character [ ], and bayonets are arranged at upper and lower ends of the sliding slot, and the bayonets at the upper and lower ends are respectively clamped on the guide sliding strips at edges of upper and lower sides of the fixed rack.
6. The VR experience helmet of claim 5, wherein a stop block is disposed on the helmet body and on a side of the rack belt detachably connected to the helmet body, a jack is formed in the stop block, and an end of the rack belt detachably connected to the rack belt passes through the jack.
7. The VR experience helmet of claim 6, wherein a plurality of open slots are formed in the lower opening of the helmet body and extend from the upper portion to the lower portion, the slots of the open slots extend to the lower opening, and a cloth is disposed in the open slots.
8. The VR experience helmet of claim 1, wherein the balance detection sensor assembly includes a balance detection sensor and a wireless signal transceiver communicatively coupled to the balance detection sensor, the wireless signal transceiver configured to transmit a pose value of the VR experience helmet, as monitored by the balance detection sensor in real time, to the master circuit assembly.
9. The VR experience helmet of claim 8, wherein the balance detection sensor is a vertical gyroscope.
10. The VR experience helmet of claim 1, wherein the master circuit assembly includes an MCU micro control processor and a wireless signal transceiver coupled to the MCU micro control processor for communicatively coupling the master circuit assembly to the balance sensor assembly and the sub-control circuit assembly.
11. The VR experience helmet of claim 1, wherein the sub-control circuit assembly includes an MCU micro-control processor and a wireless signal transceiver coupled to the MCU micro-control processor, the wireless signal transceiver configured to enable the sub-control circuit assembly to be communicatively coupled to the main control circuit assembly and the balance sensor assembly.
12. The VR experience helmet of claim 10 or 11, wherein the specific model of the MCU micro control processor in the master circuit assembly or the MCU micro control processor in the slave circuit assembly is STM32F413ZHJ 6.
13. A balance adjustment method of a VR experience helmet for adjusting a balance of the VR experience helmet as claimed in any one of claims 1 to 12, the balance adjustment method comprising the steps of:
step S1, each balance detection sensor assembly transmits the current attitude value of the VR experience helmet monitored in real time to a first MCU micro control processor in the main control circuit assembly;
step S2, the first MCU micro-control processor calculating a helmet average attitude deviation degree of the corresponding balance detection sensor assembly at a setting position on the VR experience helmet based on the received attitude value;
step S3, based on the calculated average attitude deviation of the helmet, judging whether the current attitude of the VR experience helmet is abnormal,
if yes, go to step S4;
if not, no response is made;
step S4, the main control circuit assembly generates a helmet attitude abnormal signal and sends the helmet attitude abnormal signal to a second MCU micro control processor in the sub control circuit assembly, the second MCU micro control processor receives the helmet attitude abnormal signal and then generates a motor driving signal to send to the driving motor, and the driving motor drives the balance block to slide on the rack belt according to the received motor driving signal so as to prompt a wearer that the current helmet attitude abnormal needs to be corrected in time by changing the gravity center of the VR experience helmet.
14. The balance adjustment method of claim 13, wherein in the step S2, the helmet average attitude deviation of the balance detection sensor assembly at the set position on the VR experiential helmet includes a helmet roll angle average attitude deviation and a pitch angle average attitude deviation.
15. The balance adjustment method according to claim 14, wherein the method of calculating the yaw angle average attitude deviation degree includes:
calculating an average value of the current roll angle attitude values of the VR experience helmet monitored by all the balance detection sensor assemblies in real time;
calculating the roll angle average attitude deviation degree at the set position of each balance detection sensor assembly by the following formula:
in the above formula, the first and second carbon atoms are,
means for representing the yaw angle mean attitude deviation for the VR experience helmet disposed at an A position on the VR experience helmet;
16. The balance adjustment method according to claim 15, wherein the method of calculating the pitch angle average attitude deviation degree includes:
calculating an average value of current pitch angle attitude values of the VR experience helmet, which are monitored by all the balance detection sensor assemblies in real time;
calculating the pitch angle average attitude deviation degree at the set position of each balance detection sensor assembly by the following formula:
in the above formula, DθAMeans for representing the pitch mean attitude deviation of the VR experience helmet disposed at an A location on the VR experience helmet;
θAexperiencing the pitch attitude value of a helmet for the VR at the A position;
17. The balance adjustment method of claim 16, wherein in the step S3, the method for determining whether the VR experiential helmet has an abnormal current posture comprises:
when the average attitude deviation of the roll angles of all the balance detection sensor assemblies at the set position exceeds a preset first threshold value, and/or when the average attitude deviation of the pitch angles of all the balance detection sensor assemblies at the set position exceeds a preset second threshold value, determining that the current attitude of the VR experienced helmet is abnormal, and proceeding to the step S4.
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| US20230079999A1 (en) * | 2021-09-13 | 2023-03-16 | Htc Corporation | Head-mounted display device |
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