Chassis Identification via Passive Lid Elements
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Solution Overview
Problem
Existing information handling systems face challenges in accurately determining chassis identification, which is crucial for configuring hardware resources and optimizing performance, as traditional methods like pogo pins and EEPROMs can be unreliable and require programming.
Innovation Solution
The system determines chassis identification by providing an electric charge to a passive element on the lid portion of the chassis, measuring the resulting voltage and capacitance over time, and using this data to configure the information handling system, eliminating the need for programming and enhancing reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional methods like pogo pins and EEPROMs are used to determine chassis identification, then the system can obtain chassis ID information, but the reliability is reduced and programming is required
Solution Approach 1:
The chassis identification system uses passive elements (capacitors or resistors) already present on the chassis lid to store identification information. The system automatically detects these elements through electrical measurements without requiring external programming or complex configuration, making the system self-identifying and eliminating programming requirements while improving reliability
Solution Approach 2:
The patent replaces mechanical contact-based identification methods (pogo pins) with electrical field-based detection. By measuring electrical characteristics (capacitance or resistance) of passive elements through the chassis lid, the system eliminates the need for direct mechanical contact and programming, simplifying the device while improving reliability
2Measurement precision
If pogo pins are used to detect chassis identification, then the system can read chassis ID, but the method becomes unreliable
Solution Approach 1:
The patent introduces passive elements (capacitors or resistors) as intermediaries between the detection system and the chassis identification information. These elements are electrically connected to the chassis lid and provide stable, measurable electrical characteristics that reliably represent the chassis ID, eliminating the unreliability of direct pogo pin contact methods
Solution Approach 2:
The system creates an electrical copy of the chassis identification information through the passive elements. Instead of directly reading physical chassis features with pogo pins, the system measures electrical characteristics (capacitance values or resistance values) that copy and represent the chassis ID, providing more reliable and precise detection
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
This method provides a reliable and efficient means of identifying the chassis, allowing for optimized configuration of power distribution, thermal profiles, and component utilization within the information handling system, improving overall system performance and reducing the need for manual programming.
Implementation Method 1
providing, via a conductor of the switch, an electric charge to an element of a lid portion of a chassis
Implementation Method 2
the element of the lid portion of the chassis may be separated from the lid portion of the chassis by a dielectric
Data Source
AI summary
In one or more embodiments, one or more systems, methods, and/or processes may determine that a switch of an information handling system has been actuated; may provide, via a conductor of the switch, an electric charge to an element of a lid portion of a chassis of the information handling system; after providing the electric charge to the element of the lid portion of the chassis, may determine that an amount of time has transpired; in response to determining that the amount of time has transpired, may determine a voltage value associated with the element of the lid portion of the chassis; may determine an identification of the chassis based at least on the voltage value; and may configure at least a portion of the information handling system based at least on the identification of the chassis.