Pluggable Module Identification Using Voltage Level Detection
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Solution Overview
Problem
Current pluggable module detection methods require excessive signal lines and IO ports, especially when dealing with multiple types of modules, leading to increased complexity and resource usage.
Innovation Solution
A pluggable module identification system that uses a receptor slot with a grounding assembly and detection assembly, connected to a main board with a resistor, where the number of insulator blocks on each module differs, allowing identification without excessive signal lines, utilizing only one GPIO port and integrating insertion detection without powering the modules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple signal lines and IO ports are used for module identification, then module identification accuracy is improved, but device complexity and resource consumption increase
Solution Approach 1:
The patent applies universality by making a single detection port serve multiple functions: it can identify different module types through voltage level detection, detect module insertion status, and work with various module configurations. The detection port acts as a universal interface that adapts to different module types without requiring separate dedicated lines for each module type.
Solution Approach 2:
The patent utilizes parameter changes by detecting module identification through voltage level changes at the detection port. Different module types produce different voltage levels (high or low) when inserted, allowing the system to distinguish between module types by monitoring these parameter changes rather than using multiple physical signal lines.
2Reliability
If separate IO ports are allocated for each module type, then identification reliability is improved, but loss of resources increases
Solution Approach 1:
The detection port is designed as a universal interface that can reliably identify multiple module types through a single port by detecting voltage level changes. This eliminates the need to allocate separate IO ports for each module type while maintaining reliable identification through consistent voltage level detection.
Solution Approach 2:
The patent uses voltage level copying or reflection as the identification mechanism. When a module is inserted, its electrical characteristics (voltage level) are copied to the detection port, allowing the controller to read the module type information without requiring dedicated physical connections for each module type.
3Reliability
If power is supplied to modules before identification, then module operational state is improved, but use of energy increases
Solution Approach 1:
The patent performs module identification through voltage level detection at the detection port before power is supplied to the module. This preliminary identification action allows the controller to determine module type and prepare appropriate control strategies in advance, eliminating the need to supply power before identification and reducing energy consumption.
Solution Approach 2:
The module itself provides the identification information through its electrical characteristics (voltage level) when inserted into the receptacle. The module's physical presence and electrical properties serve the dual purpose of both identification and operational readiness, eliminating the need for separate power supply before identification.
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 efficient and cost-effective module identification with reduced resource consumption, preserving controller resources and improving grounding performance, while allowing identification during the insertion process without additional power supply.
Implementation Method 1
when the pluggable module is inserted into the receptor slot and in contact with the detection assembly, the grounding assembly is short-circuited to the detection assembly, and a voltage level of the detection assembly read by the controller is low
Data Source
AI summary
A pluggable module identification system, including: a detection device and a plurality of pluggable modules with surfaces thereof being conductors, where the detection device includes a receptor slot, a grounding assembly is provided on an inner side surface of the receptor slot at a location close to an insertion opening of the receptor slot, a detection assembly is provided on the inner side surface of the receptor slot at location close to a bottom of the receptor slot, the grounding assembly is grounded, and the detection assembly is connected to a main board.