Antenna Array Angular Positioning for Gaming Motion Tracking
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Solution Overview
Problem
Current wireless communication systems for video gaming face limitations in motion tracking and positioning determination, particularly with infrared communication having a limited effective area and accelerometers only measuring acceleration, which restricts true one-to-one motion detection to a few directions.
Innovation Solution
A location system using a receiver with an antenna array that determines the environment by sweeping signals across various frequency bands, measuring signal reflections, absorption, and angles to generate a three-dimensional topographic map, allowing for accurate positioning and motion tracking of objects within a gaming environment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If infrared communication is used for wireless communication in video gaming systems, then wireless communication capability is provided, but the effective coverage area is limited
Solution Approach 1:
The system divides the detection task into multiple independent components: infrared receivers detect IR signals, accelerometers detect motion acceleration, and angular position sensors detect directional information. Each component operates independently with its own optimal range, collectively providing extended coverage beyond what any single method could achieve alone.
Solution Approach 2:
The gaming system incorporates multiple communication and detection methods (infrared communication, acceleration sensing, angular position detection) that can operate simultaneously or independently. This multi-functional approach allows the system to adapt to different gameplay scenarios and maintain functionality across a broader spatial range.
2Measurement precision
If accelerometers are used to detect motion, then motion detection capability is provided, but true one-to-one motion detection is restricted to a few directions
Solution Approach 1:
The system merges the output signals from accelerometers and angular position sensors through signal processing circuitry. The accelerometer provides acceleration magnitude and direction, while the angular position sensor provides absolute directional reference. By combining these signals, the system achieves comprehensive three-dimensional motion detection that overcomes the directional limitations of individual sensors.
Solution Approach 2:
Signal processing circuitry acts as an intermediary that receives raw data from both accelerometers and angular position sensors, processes and integrates this information, and generates comprehensive motion detection outputs. This intermediary processing layer transforms limited directional data from individual sensors into accurate multi-directional motion detection capability.
3Measurement precision
If a single antenna radiation pattern is used for signal reception, then reception capability is provided, but angular position determination accuracy is limited
Solution Approach 1:
The system dynamically switches between different antenna radiation patterns (omnidirectional and directional) based on the detected angular position of the transmitter. The angular position determination module continuously monitors signal characteristics and adjusts the active radiation pattern accordingly, optimizing reception accuracy for the current angular position while maintaining system adaptability.
Solution Approach 2:
The system transitions from using a single radiation pattern in one dimensional space to employing multiple radiation patterns that cover different spatial dimensions and angular ranges. By switching between omnidirectional patterns (360-degree coverage) and directional patterns (focused beam patterns), the system achieves enhanced angular position determination accuracy across multiple spatial dimensions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables accurate three-dimensional positioning and motion tracking of objects, providing a broader area of coverage and more precise motion detection compared to existing technologies, enhancing interactive video game play.
Implementation Method 1
an inbound wireless signal received by the antenna array
Implementation Method 2
measuring signal reflections, absorption, and angles
Implementation Method 3
measuring signal reflections, absorption, and angles
Data Source
AI summary
A receiver includes an antenna array, an angular positioning module, a low noise amplifier module, and a down conversion module. The antenna array is operable to receive an inbound wireless signal. The angular positioning module is operable to: receive a plurality of received inbound wireless signals from the antenna array. An angular position of a source of the inbound wireless signal is determined from at least some of the plurality of received inbound wireless signals based on a first radiation pattern and a second radiation pattern of the plurality of received inbound wireless signals; and output a representation of the inbound wireless signal. The low noise amplifier module is operably coupled to amplify the representation of the inbound wireless signal to produce an amplified inbound wireless signal. The down conversion module is operably coupled to convert the amplified inbound wireless signal into a baseband or near baseband signal.