CN205982821U - External motion tracking sensors VR glasses suitable for iPhone cell -phone - Google Patents
External motion tracking sensors VR glasses suitable for iPhone cell -phone Download PDFInfo
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- CN205982821U CN205982821U CN201620556986.5U CN201620556986U CN205982821U CN 205982821 U CN205982821 U CN 205982821U CN 201620556986 U CN201620556986 U CN 201620556986U CN 205982821 U CN205982821 U CN 205982821U
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Abstract
The utility model provides an external motion tracking sensors VR glasses suitable for iPhone cell -phone, is connected external motion tracking sensors and is installed by the iPhone cell -phone to constitute in VR glasses shell, wherein, external motion tracking sensors include and carry out the iPhone cell -phone connector interface circuit who communicates, little the control unit, MFI authentication unit and multi -shaft motion tracking means with the iPhone cell -phone. The utility model discloses it is not enough not only to have solved iPhone cellphone built -in gyroscope precision and frequency, and it is not good to lead to VR eyeglass body to test the effect, vertiginous problem appears, needn't link to each other with great peripheral equipment such as computer and displays moreover, and nimble small and exquisite, the mobility is high, has promoted the user experience of VR glasses greatly.
Description
Technical field
This utility model is related to virtual reality device technical field, more particularly to a kind of is applied to the outer of iPhone mobile phone
Put motion tracking sensor VR glasses.
Background technology
Virtual reality (Virtual Reality, VR), this concept is by VPL Research company of U.S. founder
Jaron Lanier proposed in 1989, and this word is quickly become the specific term of this technical field, and continues to use always
So far.Virtual reality head-mounted display equipment, referred to as VR glasses, VR glasses are using emulation technology, a computer graphical scholar
The product of the multiple technologies set such as machine interfacing, multimedia technology, sensing technology and network technology, and pass through Binocular vison
Difference, makes user have very strong third dimension.In VR glasses device, equipped with Inertial Measurement Units such as gyroscope, accelerometers
(IMU-Inertial measurement unit), IMU is the important component part of VR glasses, and it is Measuring Object three axle appearance
State angle (or angular speed) and the device of acceleration, it can be with the position of real-time perception user's head, and corresponding adjustment shows picture
The visual angle in face is so that user is seemingly dissolved in the virtual world in VR glasses.VR glasses require the response time of virtual reality
Short, and after drawing data, data can not have concussion.If system response time is longer, experiencer's head after wearing the helmet
During rotation, picture arises that delayed following accordingly in change, wearer will be led to produce dizziness, have a strong impact on user's body
Test.
In the prior art of VR glasses, generally there are two kinds of solutions：A kind of directly carried using smart mobile phone
IMU gathers the head movement information of user, and such as Chinese patent 201420788390.9 discloses a kind of VR glasses, and it includes main body
Support, the eyeshield being respectively provided with main body rack two ends and openable mobile phone holder, the binocular being arranged in main body rack are saturating
Mirror, described mobile phone holder includes：Framework, the panel being located on framework；Second face of one and panel split is included on described panel
Plate, described second panel can relatively panel opening or closure so that the photographic head being positioned over the mobile phone in mobile phone holder be exposed or
Block.This prior art, the virtual reality of the play virtual reality of achievable mobile phone and outdoor scene superposing type.This VR glasses can be by
IPhone mobile phone is placed in VR glasses, but iPhone mobile phone is with VR glasses, and circuit is not connected.Simply use iPhone handss
Sensor and 3 axle gyroscopes that the IMU that machine carries, this IMU are only accelerated by 3 axles, sample frequency is relatively low, and time delay is big for 100Hz,
There is obvious time delay interim card sensation, Consumer's Experience feels bad, and movement is that the phenomenons such as dizziness can occur.Another kind is to adopt IMU
Form multiaxial motion tracks of device in conjunction with magnetometer, barometer, thermometer etc., human body head is gathered by multiaxial motion tracks of device
Portion's movable information, by the data transfer of collection in computer, is processed to corresponding data, the angle of adjustment display picture
Degree and direction, have made one feeling of immersion experience, disclose as Chinese patent 201420789276 and " a kind of realize virtual reality technology
Device ", this device includes：Fictitious host computer；Wherein, described fictitious host computer, further includes, processor, sensor, display screen and
Audio-frequency module；Described processor, for processing data signal；Described sensor, for gathered data signal；Described display screen,
For showing video signal；Described audio-frequency module, for input or exports audio signal.Although this utility model device improves
Consumer's Experience, but need in its device to be equipped with the plurality of devices such as main frame and display, and volume is big, high cost, can only be with high-performance
Computer passes through data wire and is connected, and can not be connected with mobile phone, be limited by place and environment, mobility substantially reduces in experience,
It is not easy to promote the use of.
Content of the invention
For overcoming problem present in prior art, the purpose of this utility model is to be eliminated with less cost to use VR eye
Dizziness problem when mirror body is tested, and make user easy to use and carry, General Promotion Consumer's Experience sense.
For achieving the above object, this utility model, on the basis of the processor that iPhone mobile phone includes and display, carries
A kind of external motion tracking sensor VR glasses being applied to iPhone mobile phone are gone out.VR glasses described in the utility model be by
IPhone mobile phone connects external motion tracking sensor and is arranged on composition in VR glasses shell；Wherein, described external motion
Tracking transducer includes iPhone mobile phone connector interface circuit, the micro-control unit (MCU being communicated with iPhone mobile phone:
Microcomputer Control Unit), MFI (Made for iOS) trusted authentication chip and multiaxial motion tracks of device.
Described iPhone mobile phone connector interface circuit is to be made up of Lightning (C10) and peripheral circuit；
Described micro-control unit can be made up of ARM-Cortex series processors and peripheral circuit；
Described MFI authentication circuit is to be made up of Coprocessor 2.0C and peripheral circuit；
Described multiaxial motion tracks of device can be nine axle motion tracers, by MPU9250 chip and peripheral circuit
Constitute.
This utility model is connected equipped with nine axle motion tracers and with iPhone mobile phone in VR glasses, motion sample
Frequency, up to 1000Hz, sampled data is transferred in iPhone mobile phone by Lightning interface, makes picture more smooth, prolongs
When little, positioning more accurate.This utility model not only solves iPhone embedded in mobile phone gyroscope precision and frequency is inadequate, leads to VR
Effect on driving birds is not good experienced by glasses, the problem of dizziness, and need not ancillary equipment larger with computer and display etc. be connected, spirit
Work is compact, and mobility is high, greatly improves the Consumer's Experience of VR glasses.
Brief description
Fig. 1 is this utility model composition structural representation；
Fig. 2 is this utility model external motion tracking sensor circuit theory diagrams；
Fig. 3 is utility model works flow chart；
Fig. 4 is this utility model shell and assembly structure diagram.
Specific embodiment
In the following description, in order that reader more fully understands that the application proposes many ins and outs.But, this
Even if the those of ordinary skill in field is appreciated that does not have these ins and outs and the many variations based on following embodiment
And modification, it is also each claim of the application technical scheme required for protection.
For making the purpose of this utility model, technical scheme and advantage clearer, new to this practicality below in conjunction with accompanying drawing
The structure and working principle of type is described in further detail.
As shown in figure 1, a kind of external motion tracking sensor VR glasses being applied to iPhone mobile phone, it is by iPhone
Mobile phone 100 connects external motion tracking sensor 200 and is arranged on composition in VR glasses shell 300；Wherein, described external
Motion tracking sensor includes iPhone AUI circuit 201, the micro-control unit being communicated with iPhone mobile phone
(MCU) 202, MFI (Made for iOS) trusted authentication chip 203 and multiaxial motion tracks of device 204.
Wherein, the described iPhone AUI circuit being communicated with iPhone mobile phone is by Lightning
(C10) interface circuit is constituted；Described MCU can be constituted using ARM-Cortex series processors and peripheral circuit；Described MFI
Authentication circuit should be constituted using Coprocessor 2.0C and peripheral circuit；Described multiaxial motion tracks of device can adopt nine axles
Motion tracking sensor, in order to meet the needs of 3-axis acceleration sensor, three-axis gyroscope and three axle magnetometers.During use,
IPhone mobile phone is connected with Lightning interface circuit, is powered for VR glasses by iPhone mobile phone, and VR glasses are assisted by USB
View and iPhone mobile communication, complete MFI certification by Coprocessor 2.0C chip and peripheral circuit, MCU control motion with
Track device gathered data, for example, every 1ms collection once and transmits data to iPhone mobile phone, and iPhone mobile phone passes through built-in
The app software of IOS system is processed to data.
As shown in Fig. 2 the described iPhone mobile phone connector interface circuit being communicated with iPhone mobile phone is by Herba Marsileae Quadrifoliae
Fruit company specifies the Lightning (C10) of model and peripheral circuit to constitute；
Described micro-control unit is to be made up of ARM-Cortex series processors and peripheral circuit, for example：
STM32F103RCT6 and peripheral circuit；
Described MFI authentication circuit is to specify chip Coprocessor 2.0C and peripheral circuit to constitute by Apple；
Described multiaxial motion tracks of device is nine axle motion tracers, for example：MPU9250 and peripheral circuit composition
Nine axle motion tracking sensor.
In Fig. 2, Y1 is crystal oscillator, and crystal oscillator frequency can adopt 8MHz；KEY1 returns function button for analogue mobile phone；Chip P1 and
The iPhone mobile phone connector interface circuit that peripheral circuit composition is communicated with iPhone mobile phone；VCC is for power supply just：3.3V；
GND is ground.
A kind of external motion tracking sensor VR glasses circuit part being applied to iPhone mobile phone described in the utility model
Concrete attachment structure is as follows：
In Fig. 2, chip P1 and peripheral circuit constitute Lightning interface circuit, are that Apple specifies adapter, use
Usb communication mode.Wherein, 1 foot of P1 is connected with VCC, and 2 feet of P1 are connected with GND, and 3 feet of P1 are connected with 2 feet of R3, and the 2 of R3
Foot is connected with VCC, and 1 foot of R4 is connected with VCC, and 2 feet of R5 are connected with 3 feet of P1, and 2 feet of R6 are connected with 4 feet of P1.
In Fig. 2, chip U1 (STM32F103RCT6) and peripheral circuit constitute described MCU：Wherein 5 feet of U1 and the 1 of Y1
Foot is connected, and 6 feet of U1 are connected with 2 feet of Y1, and 7 feet of U1 are connected with 2 feet of R4, and 16 feet of U1 are connected with 22 feet of U2, U1's
28 feet are connected with 1 foot of R1, and 34 feet of U1 are connected with 23 feet of U2, and 35 feet of U1 are connected with 9 feet of U2, and 36 feet of U1 are with U2's
24 feet are connected, and 44 feet of U1 are connected with 1 foot of R5, and 45 feet of U1 are connected with 1 foot of R6, and 50 feet of U1 are connected with 1 foot of KEY1,
52 feet of U1 are connected with 6 feet of U3, and 53 feet of U1 are connected with 2 feet of U3, and 60 feet of U1 are connected with 1 foot of R2, U1 12,18,
31st, 47,63 feet are connected with GND, and 13,19,32,48,64 feet of U1 are connected with VCC, and 2 feet of R1 are connected with GND, 2 feet of R2 with
GND is connected, and 1 foot of Y1 is connected with 1 foot of C1, and 2 feet of Y1 are connected with 1 foot of C2.
In Fig. 2, chip U2 (MPU9250) and peripheral circuit constitute nine described axle motion tracers, wherein,
MPU9250 chip can use IIC (Inter IC BUS) communication means and SPI (Serial Peripheral Interface)
Communication mode, with respect to IIC communication mode, SPI communication mode clock signal frequency is higher, traffic rate faster, the present embodiment
Employ SPI communication mode to communicate with MCU, be connected with MCU by 9 feet of U2,22 feet, 23 feet, 24 feet.Nine axle motion tracking dresses
The concrete on-link mode (OLM) put can be：9 feet of U2 are connected with 1 foot of R13, and 10 feet of U2 are connected with 1 foot of C11,11 feet of U2
It is connected with 1 foot of R12,22 feet of U2 are connected with 2 feet of R7,23 feet of U2 are connected with 2 feet of R9,24 feet of U2 and 2 feet of R8
It is connected, 1,8,13 feet of U2 are connected with VCC, be connected with GND 1 foot of R7 of 18,20 feet of U2 is connected with VCC, 1 foot of R8 and VDD
It is connected, 1 foot of R9 is connected with VCC, and 2 feet of R10 are connected with VCC, and 2 feet of R11 are connected with VCC, and 2 feet of R12 are connected with GND,
2 feet of R13 are connected with GND, and 1 foot of C9 is connected with VCC, and 2 feet of C9 are connected with GND, and 1 foot of C10 is connected with VCC, and the 2 of C10
Foot is connected with GND, and 2 feet of C11 are connected with GND.
In Fig. 2, chip U3 (Coprocessor 2.0C) and peripheral circuit constitute described MFI authentication ' unit, and this is Herba Marsileae Quadrifoliae
Fruit company specifies chip.Communicated with MCU using IIC communication mode, all need by MFI when every subsystem is connected with iPhone mobile phone
Certification, system just can by iPhone handset identity be an effective peripheral hardware, such as there is no MFI certification, iPhone mobile phone will not with outer
If being communicated.2 feet of in figure U3 are connected with 1 foot of R10, and 6 feet of U3 are connected with 1 foot of R11, and 1 foot of U3 is connected with GND,
7 feet of U3,8 feet are connected with VCC, and 1 foot of C7 is connected with VCC, and 2 feet of C7 are connected with GND, and 1 foot of C8 is connected with VCC, and the 2 of C8
Foot is connected with GND.
In Fig. 2, key circuit is that 2 feet of KEY1 are connected with GND.
As shown in figure 3, on the basis of foregoing circuit can within set following software program：Upon power-up of the system, system is entered
Row initialization, is set up system by usb protocol and is connected with iPhone, and (Apple specifies exclusively for Fructus Mali pumilae accessory to set up iAP2
Agreement) agreement, the communication protocol only setting up Apple's formulation could access iPhone mobile phone, and enter with iPhone mobile phone
Row communication, this communication protocol is divided into two-layer, and Link layer (link layer) is underlying protocol, and Session layer (session layer) is assisted for upper strata
View, initially sets up Link layer and connects, then carry out MFI certification, judge whether MFI passes through, without passing through, system continue into
Row MFI authentication procedure, if MFI certification is passed through, begins setting up Session layer and connects, after the completion of Session layer is set up, system is
Carry out upper layer data transmitting-receiving with iPhone mobile phone, the every 1ms of system is arranged by timer interruption and reads a motion tracking sensing
Device data, and data Session layer is sent in iPhone mobile phone.
As shown in figure 4, this utility model is made up of housing and internal circuit, during use, open VR glasses front panel, put into
IPhone mobile phone, the Lightning connecting line of VR glasses is connected with the Lightning interface of iPhone mobile phone, before closure
Panel, fixes iPhone mobile phone.
It should be noted that each unit mentioned in this utility model each equipment embodiment is all logical block, in thing
In reason, a logical block can be a part for a physical location or a physical location, can also be with multiple
The combination of physical location is realized, and these logical blocks Physical realization of itself is not most important, these logical blocks
The combination of the function of being realized is only the key solving the technical problem that this utility model is proposed.Additionally, in order to project this reality
With new innovative part, this utility model does not introduce above-mentioned each equipment embodiment and is carried with solving this utility model
The less close unit of the technical problem relation that goes out, but this is not intended that there is not the said equipment embodiment and other relevant
Implementation unit.
Although by referring to some preferred implementations of the present utility model, this utility model has been shown and
Description, but it will be understood by those skilled in the art that can to it, various changes can be made in the form and details, and not inclined
From spirit and scope of the present utility model.
Claims (5)
1. a kind of external motion tracking sensor VR glasses being applied to iPhone mobile phone, it is external by the connection of iPhone mobile phone
Motion tracking sensor is simultaneously arranged on composition in VR glasses shell, it is characterized in that, described external motion tracking sensor includes
Set the iPhone mobile phone connector interface circuit that program communicated with iPhone mobile phone, micro-control unit, MFI certification according to interior
Unit and multiaxial motion tracks of device.
2. a kind of external motion tracking sensor VR glasses being applied to iPhone mobile phone according to claim 1, it is special
Levying the iPhone mobile phone connector interface circuit being described is to be made up of Lightning and peripheral circuit.
3. a kind of external motion tracking sensor VR glasses being applied to iPhone mobile phone according to claim 1, it is special
Levying the micro-control unit being described is to be made up of ARM-Cortex series processors and peripheral circuit.
4. a kind of external motion tracking sensor VR glasses being applied to iPhone mobile phone according to claim 1, it is special
Levying the MFI authentication circuit being described is to be made up of Coprocessor 2.0C and peripheral circuit.
5. a kind of external motion tracking sensor VR glasses being applied to iPhone mobile phone according to claim 1, it is special
Levy be described multiaxial motion tracks of device be nine axle motion tracers, be made up of MPU9250 chip and peripheral circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620556986.5U CN205982821U (en) | 2016-06-08 | 2016-06-08 | External motion tracking sensors VR glasses suitable for iPhone cell -phone |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620556986.5U CN205982821U (en) | 2016-06-08 | 2016-06-08 | External motion tracking sensors VR glasses suitable for iPhone cell -phone |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107029409A (en) * | 2017-06-16 | 2017-08-11 | 河北工业大学 | A kind of running training system based on virtual reality technology |
| CN107197383A (en) * | 2017-05-11 | 2017-09-22 | 湖南克拉视通科技有限公司 | It is a kind of that the method that VR videos are played to mobile device is pushed based on set top box |
| CN107728811A (en) * | 2017-11-01 | 2018-02-23 | 网易（杭州）网络有限公司 | Interface control method, apparatus and system |
-
2016
- 2016-06-08 CN CN201620556986.5U patent/CN205982821U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107197383A (en) * | 2017-05-11 | 2017-09-22 | 湖南克拉视通科技有限公司 | It is a kind of that the method that VR videos are played to mobile device is pushed based on set top box |
| CN107029409A (en) * | 2017-06-16 | 2017-08-11 | 河北工业大学 | A kind of running training system based on virtual reality technology |
| CN107728811A (en) * | 2017-11-01 | 2018-02-23 | 网易（杭州）网络有限公司 | Interface control method, apparatus and system |
| CN107728811B (en) * | 2017-11-01 | 2022-02-18 | 网易（杭州）网络有限公司 | Interface control method, device and system |
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