The VR integrated machine has finally ushered in its own market, and it has verified and solved the problem of insufficient performance of ordinary Android VR. So how does the all-in-one machine get a better experience than the Cardboard or even the Gear class solution to prove itself?
In 2016, the Big Brother VR machine was officially launched, and some media also conducted related dismantling work for the first time. Prior to the official release, we also made a certain understanding of its performance parameters, and we also gave the impression that we had a good impression of it in the hands-on experience video at the press conference.
Several important specifications and parameters:
In a nutshell, Dafen VR one-machine has achieved a stable experience in screen, optical, processor, graphics processing unit, built-in system, comes with more than 130 kinds of excellent VR games at home and abroad, and 10,000 hours + VR video. Level, but you can play anywhere, anytime.
Well, here we go directly to the dismantling site of the Big Brother VR machine:
The main tools we use are the "Phillips screwdriver," "Big Phillips screwdriver," and "Scorpion."
STEP1: Two-layer design - remove the mask manually.
Mask part is the part of the face, the use of high-quality foam, no odor, plus a layer of velvet, foam is affixed with Velcro, you can easily pull open, easy to replace the new foam. Of course, the foam part is pulled open, and there is a plastic frame. It is connected to the fuselage in a snap-fit ​​manner and has a total of twelve holes. In this way, the design of the two-layer mask is more scientific, which not only facilitates the replacement of the mask, but also better fixes the mask.
STEP2: Dismantling the mask
The last layer of the mask is connected to the fuselage, a total of eight cross-type screws, here you can really start to the inside of the fuselage, screws with magnetic, disassembled with a screwdriver to adsorb and place in a safe place. After removing the screws, be sure to carefully pick up and observe the inside of the fuselage. At this time, the internal real face is almost out, and it will be a little emotional.
STEP3: Remove the cable
When we pick up the top layer of the mask, pay attention to the position of the cable, and avoid excessively damaging the cables. Use tweezers to remove the cables between the motherboard and the touchpad, and between the screen and the motherboard.
STEP4: Check the inside of the fuselage and remove the focusing frame.
After dismantling the cable, we can safely remove the last layer of the mask to reveal the entire interior of the fuselage, including the main board, battery, screen, touchpad, proximity sensor and other plastic frame structures. The plastic frame responsible for adjusting the object distance (vision) includes the main board, battery, and screen. To see them clearly, first remove the focusing frame, including gears, springs, plastic brackets, and small screws. This is Da Peng's innovative design. The three-level gear adjustment can smoothly move the gears to adjust the position of the screen. It is not difficult to find out the principle of focusing frame: we often see the world of VR because of myopia, wear glasses when we experience VR. Wearing a headset is more uncomfortable, so this design frame allows the screen to be adjusted from the optical lens to a certain range through the spring, changing the length of the focal length to accommodate more people with myopia (range of 0 to 600 degrees of myopia).
Ps: Shaped Lenses: Da Peng's exclusive patented special-shaped lens design and 0.000009m-accurate processing technology demonstrate Da Peng's optical design capabilities, leaving more room for nose bridges.
STEP5: Motherboard, Screen, and Battery
Dafen VR one machine uses the same type of Exynos7420 CPU, Mali 760 GPU, 3G RAM and 32G ROM as Galaxy s6. Although it is the earliest release and mass production machine, it still maintains the domestic VR one machine. Top configuration. The motherboard also integrates other important components such as gyroscopes, wireless network cards, and power ICs. The software algorithm of the gyroscope includes the ATW asynchronous time warping. The biggest advantage of this algorithm is the interpolation frame technology, which improves the frame rate of the picture. Let the frame output high frame rate, reduce the sense of vertigo, with this IMU has been expected from our results, the screen output stable gyro does not drift, the delay is less than about 17s, the outside of the motherboard contains copper foil and copper tube to play cooling.
The screen uses Samsung's custom AMOLED 2.5K screen resolution of 2560x1440, support 60,70 hz refresh, low low-glow low delay, clear viewing effect, smooth gaming experience. Dizziness and dizziness are the biggest obstacles to the popularity of VR. Samsung's AMOLED's 1ms pixel persistence achieves the same low-brightness and vertigo-free experience as Oculus and HTC Vive. Currently in the domestic production of VR one machine, only a big friend using Samsung AMOLED this top screen.
The battery is a large-customized lithium polymer battery. Da Peng has done battery charging and discharging tests far exceeding industry standards to ensure the safety of the battery and the stability of the battery capacity. We can guarantee a continuous VR experience of up to 3 hours. In actual comparison, we can find that the average lifetime of the Big Brother VR one is better than Samsung GearVR. Some Samsung mobile phones will also appear 20 minutes of games to warn the user of overheating, and Samsung will adapt the phone. There are many models, and the problem of longevity caused by hot air is still unresolved. Even if the big friends have a long battery life, everyone should pay attention to rest after using for one hour. The custom battery also supports fast charging technology, charging takes about one and a half hours.
Overall, the assembly design of the main board, screen and battery is very reasonable. The design of the mold and parts structure is compact and the overall process level is worthy of recognition.
STEP6: Control board, fan and touchpad
The control panel includes functional interfaces to the mainboard: SD card, USB, power supply and audio interface to expand various basic functions and greatly facilitate the use of VR players.
There are two fans, one on the motherboard and one on the control board. The dual fan design ensures that the user will not lower the CPU temperature during the continuous experience of the all-in-one process. Once the frequency is down, it will cause frame drop frames. , even system crashes and other issues. In the current mobile phone VR, neither the Cardboard nor the GearVR has faced the problem of overheating of the mobile phone, which greatly limits the use time of the mobile phone VR.
The touchpad is integrated in the right side of the fuselage and glued in. The cable is responsible for the operation of the control screen connected to the mainboard, similar to the role of the mouse, including forward and backward and confirmation functions.
Compared with splitters, touchpads are a highly integrated and interactive way that allows users to use them more conveniently. For the occasions where gamepads are needed, DaPin and Beitong's custom gamepads ensure gaming experience and quality. In addition, DaPin's top-level phase source headphones (which require additional purchases) can provide users with three-dimensional sound effects.
Disassemble comprehensive evaluation:
Maintenance index: 9 points (out of 10 points)
Advantages: 1, excellent hardware parameters, the world's first volume production of VR machine, Samsung, ARM full support to build.
2. Excellent functional structure design, dense parts, proper use of internal space, and high degree of integration.
3, dual-fan dynamic switch, support for more than 3 hours battery life, highly in line with entertainment video requirements, better solve the heat problem.
Disadvantages: Big friends used the Samsung AMOLED screen, top hardware configuration and solid workmanship and quality, resulting in a high retail price of the big one machine, reaching 2,999 yuan.
Dismantling the ultimate goal is to look at a company's hardware strength, at least at present has seen Da Peng's sincerity, in the optical design has its own focal length adjustment program, practical and effective. The internal parts are compact, a total of 248 parts, which greatly validates the meticulous design of the product. A good cooling solution solves the battery life and safety issues during the experience, allowing users to enjoy more than 2 hours of comfortable play. The dismantling only included one machine head display, and Da Peng also disclosed that it will have a space positioning and gesture somatosensory program at the end of the year, and more games will be presented at that time.
Zooke Connectors Co., Ltd. , https://www.zooke.com