PSU Slot Detection via Connector Coding for Fault Localization
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Solution Overview
Problem
In electronic systems, particularly in data centers and server farms, identifying the position of power supply units (PSUs) within a rack or cooling tank is challenging due to their identical configuration, making it difficult to pinpoint faulty units among many, which can lead to inefficient maintenance and control.
Innovation Solution
The implementation of a multifunction electrical connector with position identification contacts that encode a unique pattern based on its mating position, allowing the PSU to generate a position code and report status information, enabling a system controller to determine and manage the position and status of each PSU within the system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple PSUs are installed in a rack with identical configuration, then power supply capacity is increased, but it becomes difficult to identify and locate faulty units
Solution Approach 1:
The connector is divided into multiple mating positions (first position, second position, etc.), each with unique positioning features. Each PSU installed at a different position has a distinct configuration pattern, enabling individual identification of each unit within the rack system.
Solution Approach 2:
Each mating position on the connector has locally differentiated features (different numbers and arrangements of positioning pins). This local variation in configuration allows the system to distinguish between otherwise identical PSUs based on their positional characteristics.
2Reliability
If PSUs are installed in large quantities for high availability, then system reliability is improved, but maintenance time increases due to difficulty in locating faulty units
Solution Approach 1:
The connector is pre-configured with unique positioning features at each mating position before PSU installation. This preliminary differentiation enables rapid identification of faulty units during maintenance, eliminating the need to physically inspect or manually identify each PSU in the rack.
Solution Approach 2:
The system provides feedback about PSU position through the unique configuration pattern detected by the controller. This feedback mechanism allows the system to automatically identify which specific PSU requires maintenance, significantly reducing troubleshooting time.
3Ease of manufacture
If identical PSUs are used throughout the system, then manufacturing cost is reduced, but position identification becomes impossible
Solution Approach 1:
While the PSUs themselves remain identical for cost efficiency, the connector positions are made asymmetric through different arrangements of positioning pins and contact patterns. This asymmetric positioning allows the system to distinguish between identical PSUs based on their unique positional signatures.
Solution Approach 2:
The connector design serves multiple functions: it provides electrical connection, mechanical support, and position identification simultaneously. The positioning pins serve both as mechanical alignment features and as identification markers, eliminating the need for separate identification mechanisms.
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 solution enables precise identification and management of PSUs, facilitating efficient maintenance by correlating status information with positional data, thus reducing the time and effort required to locate faulty units and improving overall system control.
Implementation Method 1
a contact comprising a compliant beam with a first contact portion and a second contact portion. The contact may be configured such that, when the second contact portion interacts with the mating structure, the compliant beam is deflected such that the first contact portion contacts the first type conductor.
Data Source
AI summary
System and method to use position information about a power supply unit (PSU) within a system for status reporting or control. The system may have multiple slots into which the PSU may be installed, and each of multiple PSUs installed may sense position information, such as an indication of the slot into which it is installed. A controller may receive the position information in connection with status information such that faults or other events associated with a PSU may be reported to a system operator in connection with a position of the affected PSU. The controller may determine adjustments to operating parameters of the PSUs that are impacted by position and may direct commends to the appropriate PSU based on the position information.