The 2017 International Consumer Electronics Show (referred to as:CES) has come to an end, this year's show can be said to be a climax, in which the biggest attraction is not virtual reality (VR) and augmented reality (AR). It is understood that in this year's CES site, VR / AR exhibitors up to more than 90, compared with more than 40 last year doubled. It is worth emphasizing that Chinese brands have a strong lineup, especially in the field of VR, which can be said to occupy half of the river.
Virtual Reality, in people's imagination, should at least allow users to walk freely like reality. How to realize location tracking in the mobile VR space is crucial to mobile VR and even the entire VR industry. In terms of motion tracking, it is basically realized through accessories, after all, virtual reality displays are just head-mounted displays. Various companies have introduced devices that can be operated directly with the hands, and most of these devices are based on gloves and grips.
In this regard, each company's implementation is slightly different.
Oculus Rift needs to be controlled through the Touch handle, which has a large number of sensors built into it to monitor hand movements for specific operations.
Sony Playstation VR is through the PS Camera and Move handle to realize the motion tracking operation, relatively speaking, slightly backward, after all, this set of solutions has existed for a long time.
HTC Vive's motion tracking is the most comprehensive, by setting up two laser tracking lenses in the room to scan the laser sensors on the headset and the handle, thus realizing a scene-based tracking effect.
NOLO is a fully immersive mobile VR interactive device that uses its self-developed PolarTraq spatial positioning technology to provide millimeter-level head and hands 6-DoF spatial positioning and interaction for all mainstream mobile VR headsets and Android phones. The principle of the technology is to rely on the ultrasonic sensors between the handle and the base station to transmit and receive specially processed acoustic signals into space to achieve accurate positioning; two base stations can be placed, as long as the laser through the time-sharing method, ultrasonic signals can be easily solved through the frequency-sharing method.
The sensors used in VR motion tracking handle are mainly laser, ultrasonic, vision, etc., in which open ultrasonic sensors are used to realize mobile VR spatial positioning and interaction. Open ultrasonic sensors have transmitter type, receiver type and transceiver type, VR spatial positioning and rendezvous for the angle and sensitivity of the sensor has very strict requirements. Audiowell combined with the market demand for applications, the launch of open sensors for the VR / AR field, with a large angle, high sensitivity, good consistency and other characteristics, highly recognized by the market.
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