Patch Panel Switch-State Aggregation Using Shared I/O Lines
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Solution Overview
Problem
Monitoring a large number of switches efficiently is challenging due to the limitations of microprocessor I/O interfaces, requiring additional resources like I/O expanders or programmable logic devices, and existing methods are time-consuming and unable to utilize I/O interfaces for other purposes.
Innovation Solution
A patch panel system with programmable processors and digital-to-analog converters that convert binary switch states into analog signals, allowing for simultaneous monitoring of multiple switches without the need for individual polling, and enabling the same I/O lines to be used for both switch state monitoring and data communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If an I/O expander or programmable logic device is used to share microprocessor I/O interfaces among multiple switches, then the number of switches that can be monitored is increased, but the protocol complexity and addressing requirements increase
Solution Approach 1:
The patent combines multiple switch state signals into a single aggregated signal that can be read by the microprocessor through one I/O interface. Instead of requiring separate I/O lines for each switch, the system merges all switch states into a unified representation that consumes minimal processor resources while maintaining full monitoring capability.
Solution Approach 2:
The I/O interface is designed to serve multiple functions: it can monitor switch states, read cable information from memory devices, and perform data communication. This multi-functionality eliminates the need for dedicated I/O lines for each purpose, reducing overall system complexity while increasing the number of switches that can be monitored.
2Quantity of substance
If the microprocessor polls each switch individually through an I/O expander or PLD, then all switch states can be monitored, but the time required for polling increases
Solution Approach 1:
The patent combines multiple switch state signals into a single aggregated signal that can be read by the microprocessor through one I/O interface. Instead of requiring separate I/O lines for each switch, the system merges all switch states into a unified representation that consumes minimal processor resources while maintaining full monitoring capability.
Solution Approach 2:
The system performs preliminary aggregation of switch states at the patch panel level before transmitting to the microprocessor. This preliminary action consolidates multiple individual switch readings into a single composite signal, eliminating the need for the microprocessor to perform multiple sequential polling operations.
3Reliability
If a separate I/O interface is used to monitor switch states, then switch monitoring can be performed, but the I/O interface cannot be used for other purposes
Solution Approach 1:
The I/O interface is designed to serve multiple functions: it can monitor switch states, read cable information from memory devices, and perform data communication. This multi-functionality eliminates the need for dedicated I/O lines for each purpose, reducing overall system complexity while increasing the number of switches that can be monitored.
Solution Approach 2:
The patent combines multiple switch state signals into a single aggregated signal that can be read by the microprocessor through one I/O interface. Instead of requiring separate I/O lines for each switch, the system merges all switch states into a unified representation that consumes minimal processor resources while maintaining full monitoring capability.
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 approach significantly reduces the time required to monitor switch states and allows the same I/O lines to be used for both switch status detection and data communication, improving efficiency and reducing the need for additional resources.
Implementation Method 1
A patch panel system with programmable processors and digital-to-analog converters that convert binary switch states into analog signals
Data Source
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AI summary
One switch-state aggregation technique uses a digital-to-analog converter in combination with an analog-to-digital converter to aggregate the state of a plurality of switches. Another switch-state aggregation technique uses input/output lines of a processor to aggregate the state of a plurality of switches and to communicate data other than the state of the switches. These techniques can be used to aggregate information about whether a plug or other connector is inserted into the ports of a patch panel or other telecommunication or communication assembly, system, or device.