IP Network Display Power Control via Gateway Connection State

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Solution Overview

Problem

Existing solutions fail to effectively manage power consumption of display devices in multi-user collaboration systems based on the connection state of client devices to a presentation gateway over an IP network, leading to inefficient energy usage.

Innovation Solution

A method where a presentation gateway controls the power state of a display device over an IP network connection, powering it on when the first client device connects and powering it off when the last client disconnects, using IP network instructions to manage the display's power state and prevent unnecessary power cycles during concurrent connections.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the display device remains powered on during idle periods, then it is ready for immediate use, but energy is wasted

Engineering Contradiction:

Improvereadiness for useVSAvoidenergy consumption

Core Design Contradiction:

Ease of operationVSUse of energy by moving object

Solution Approach 1:

The system performs preliminary actions by keeping the display device in a low-power state and only activating it when a client device connects to the presentation gateway. The gateway monitors connection states and proactively powers on the display when needed, eliminating the need for the display to remain continuously powered on while maintaining readiness for use.

Inventive Principle:

Principle #10Preliminary action

2Use of energy by moving object

If the display device is powered off to save energy, then energy consumption is reduced, but it cannot respond immediately to user needs

Engineering Contradiction:

Improveenergy consumptionVSAvoidtime to activate

Core Design Contradiction:

Use of energy by moving objectVSLoss of time

Solution Approach 1:

The presentation gateway continuously monitors client device connection states and performs the preliminary action of powering on the display device as soon as a client connects, eliminating activation delay while maintaining energy efficiency during idle periods.

Inventive Principle:

Principle #10Preliminary action

3Adaptability or versatility

If multiple client devices connect concurrently, then collaboration capability is enhanced, but the display may be powered on multiple times unnecessarily

Engineering Contradiction:

Improvemulti-user collaborationVSAvoidpower management complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The presentation gateway implements feedback mechanisms by monitoring the connection states of multiple client devices and adjusting power management decisions accordingly. When a client disconnects, the gateway receives feedback and determines whether to power off the display based on whether other clients remain connected, preventing unnecessary power cycles while supporting multi-user collaboration.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS9207651B2Connection aware power control of network displays

Publication Date: 2015.12.08 CRESTRON ELECTRONICS INC

AI summary

Controlling the power state of an internet protocol (IP) network display device using the cumulative connection status of one or more client devices to presentation a gateway. The first client device to connect to the presentation gateway causes it to transmit an instruction over the IP Network to the display device to turn-on. When the last of the client connections to the presentation gateway has terminated, the presentation gateway transmits either a sleep or power-down instruction over the IP network to the display device, optionally, after a countdown timer expires.