Movable Antenna Orientation for VR Signal Stability
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Solution Overview
Problem
Existing wireless communication systems for virtual reality, such as those using phased-array antennas in head-mounted displays, face challenges with signal transmission stability due to blind spots caused by the user's head, leading to inefficient communication.
Innovation Solution
A communication system comprising a fixed first transceiver and a movable communication device with a second transceiver, detection circuit, and processor-controlled arm, which detects displacement and rotation to maintain the second transceiver's orientation towards the first transceiver, ensuring continuous signal transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a phased-array antenna is disposed on head-mounted display for wireless signal transmission, then physical cable connection is eliminated, but blind spots are created by the user's head causing signal transmission instability
Solution Approach 1:
The patent applies the Dynamics principle by making the antenna system movable rather than fixed. The communication device includes a movable platform with an antenna that can dynamically adjust its position and orientation. The processing circuit continuously receives position information from the wearable device and control information, then generates adjustment commands to move the antenna to optimal positions that maintain signal transmission stability while avoiding blind spots created by the user's head.
Solution Approach 2:
The patent implements the Feedback principle through a closed-loop control system. The processing circuit receives position information from the wearable device, determines the current signal transmission status, generates control commands based on this feedback, and adjusts the antenna position accordingly. This continuous feedback mechanism ensures the antenna remains in optimal positions for reliable wireless communication.
2Adaptability or versatility
If the antenna position is fixed on the head-mounted display, then device complexity is reduced, but the antenna cannot adapt to changes in relative position between transceivers
Solution Approach 1:
The patent introduces an intermediary processing circuit that acts as a mediator between the wearable device and the antenna system. This processing circuit receives position information from the wearable device, processes the data to determine optimal antenna positions, generates control commands, and transmits them to the antenna positioning mechanism. The intermediary handles the complexity of position adaptation logic, allowing the antenna system to be adaptable without directly increasing the complexity of the head-mounted display device.
Data Source
AI summary
A communication system, which is applied to a space, includes a first transceiver and a communication device. The first transceiver is fixedly disposed in the space. The communication device is movable in the space. The communication device includes a base, a second transceiver, a detection circuit, an arm and a processor. The second transceiver is oriented to an orientation and configured to build a signal transmission with the first transceiver. The detection circuit is configured to detect a displacement or rotation of the communication device with respect to the first transceiver, in order to generate detection information. One end of the arm is connected to the base, and another end of the arm is connected to the second transceiver. The processor is configured to control an operation of the arm according to the detection information, in order to maintain the orientation of second transceiver directing to the first transceiver.