Wireless Presence Detection Profiles for Sensor-Limited IHSs
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Solution Overview
Problem
Complex user presence detection capabilities in Information Handling Systems (IHSs) are often limited due to the absence of multiple sensors or processing resources required to implement complex user detection capabilities are not available or are not always available, especially in scenarios where cameras or other sensors are not available or are not always available.
Innovation Solution
Adaptive user presence detection is achieved through wireless signaling by transmitting and receiving wireless communications using a wireless network controller, determining context, and selecting a wireless signaling profile to adapt transmission and reception, utilizing multiple antennas for directional information to detect user presence, gestures, and ambient light conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If complex sensors (cameras, time-of-flight sensors) are used for user presence detection, then detection capability is improved, but device complexity and cost increase
Solution Approach 1:
The patent replaces mechanical/optical sensors (cameras, time-of-flight sensors) with wireless communication-based detection. The system uses wireless network controllers to transmit and receive signals, analyzing signal characteristics (strength, quality, interference patterns) to detect user presence, gestures, and proximity without requiring complex optical or mechanical sensing hardware.
Solution Approach 2:
The patent makes the wireless network controller perform multiple functions: it not only handles standard wireless communication but also simultaneously performs user presence detection, gesture recognition, and environmental sensing. This multi-functionality eliminates the need for separate dedicated sensors, reducing overall device complexity while maintaining detection capabilities.
2Measurement precision
If multiple sensors and processing resources are deployed for user detection, then detection accuracy is improved, but energy consumption increases
Solution Approach 1:
The system replaces energy-intensive optical sensors and image processing with wireless signal analysis. By using the existing wireless network controller to analyze signal characteristics (strength, quality, interference patterns) rather than capturing images or depth data, the system achieves accurate detection with significantly lower energy consumption.
Solution Approach 2:
The patent dynamically adjusts wireless transmission parameters (power levels, modulation schemes, signal characteristics) based on detected user presence and environmental conditions. This adaptive parameter adjustment optimizes the balance between detection accuracy and energy consumption, allowing the system to maintain high accuracy while minimizing power usage during normal operation.
Data Source
AI summary
Embodiments provide adaptive user presence detection by a first Information Handling System (IHS). The first IHS transmits and receives wireless communications with a second IHS using a wireless network controller of the first IHS. A context is determined in which the first IHS transmits and receives the wireless communications with the second IHS. Based on the context of the wireless communications, a wireless signaling profile is selected for use by the wireless network controller in the wireless communications with the second IHS, where the selected wireless signaling profile adapts the transmission and reception of the wireless communications with the second IHS in supporting different types of user presence detection by the first IHS. Use the wireless communications that have been adapted according to the wireless signaling profile to locate a user of the first IHS relative to the first IHS.