Multi-Color LED State Recognition Logic Circuit
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Solution Overview
Problem
Server blade systems face challenges in representing multiple states due to their complex structure and limited space, making it difficult for managers to recognize system states using conventional LED methods, which require numerous LEDs and are impractical for high-density environments.
Innovation Solution
A multi-state recognition device utilizing a logic circuit set and multi-color LED set, controlled by server power, user selection, KVM, and power-fail signals, to display various states using fewer LEDs, reducing complexity and saving space by employing logic circuits and LED combinations to represent multiple states with distinct light signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If one LED represents one state, then the state representation is clear and simple, but the number of LEDs increases significantly and space is consumed
Solution Approach 1:
The patent combines multiple LED components into a single multi-color LED that can display multiple states through different colors and blinking patterns. This merging approach allows one LED to represent multiple server states (power on, power off, standby, failure, etc.) that would traditionally require multiple separate LEDs, thereby reducing space occupation while maintaining state recognition clarity
Solution Approach 2:
The patent changes the parameters of a single LED (color, blinking frequency, intensity) to represent different server states. By varying these parameters, one LED can convey multiple pieces of information about server status without requiring multiple physical LEDs, thus resolving the contradiction between information representation and space usage
2Adaptability or versatility
If multiple LEDs are used to represent all states, then all states can be displayed, but the system complexity increases and becomes confusing
Solution Approach 1:
The patent makes a single LED multi-functional by enabling it to represent multiple server states through different color emissions and blinking patterns. This universal LED can indicate power status, operational state, error conditions, and other server parameters, replacing what would traditionally require multiple specialized LEDs and reducing overall system complexity
Solution Approach 2:
The patent utilizes color changes in a single LED to represent different server states. Different colors (e.g., green for normal, red for error, yellow for warning) and blinking patterns provide a compact, intuitive way to convey multiple states without increasing the number of LED components, thereby maintaining versatility while reducing complexity
3Loss of information
If numerous LEDs are installed to cover all server states, then complete state coverage is achieved, but the blade server space is insufficient
Solution Approach 1:
The patent merges multiple state-indicating LEDs into a single multi-color LED component. This consolidation maintains complete state information coverage through different color and blinking pattern combinations while dramatically reducing the physical space required in the blade server environment
Solution Approach 2:
The patent adds temporal and spectral dimensions to the LED display by using different colors and blinking patterns over time. This dimensional expansion allows a single LED to convey multiple states simultaneously or sequentially, achieving complete state coverage without proportionally increasing physical space requirements
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
The solution effectively reduces the number of LEDs needed, simplifies state recognition, and conserves space in server blade systems by using fewer LEDs to convey multiple states through logical control of light signals, providing a flexible and efficient means for server managers to monitor system status.
Implementation Method 1
a multi-color LED set for receiving a server power signal PWR_LED outputted by a blade server and a user selection signal USER_SEL, a keyboard video mouse selection signal KVM_EN-L and a power-weak signal MP_FAIL outputted by a system management unit
Data Source
AI summary
A multi-state recognition device of a server blade system is provided. The multi-state recognition device comprises a logic circuit set for receiving a system state signal to control a multi-color LED set, and the multi-color LED set which illustrates the current sate of the blade server. The multi-state recognition device of the blade server receives plural signals outputted by the blade server and plural signals outputted by the system management unit. The blade server, the system management unit, and the multi-state recognition device all receive a main power source signal. The multi-state recognition device comprises a logic circuit set and a multi-color LED set, wherein the logic circuit set controls the multi-color LED set according to the plural signals outputted by the blade server and the plural signals outputted by the system management unit, so that the multi-color LED set generates various light signal states.