Switch Unit with Infrared Presence Detection for Dark Room Finding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional light switches are difficult to find in dark rooms, as they lack a mechanism for easy location independent of lighting conditions.
Innovation Solution
A switch unit with a movable switch-presence detector unit that combines presence detection and pressure switch functionality, featuring infrared sensors, backlighting, and adjustable light sources to facilitate finding and activating the switch in low-light environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional light switch is used, then the switching function is simple and reliable, but the switch is difficult to find in dark rooms
Solution Approach 1:
The patent applies preliminary action by providing a light source that activates before the main lighting is needed. The light source is switched on upon detecting that main lighting is switched off, providing illumination to help users find the switch in dark rooms before they need to perform the switching action.
Solution Approach 2:
The patent implements self-service through automatic detection and control mechanisms. The system automatically detects when main lighting is switched off and activates the light source accordingly, eliminating the need for manual intervention to provide finding illumination. The control unit autonomously manages the lighting assistance function.
2Ease of operation
If an auxiliary light is added near the door, then it provides illumination to find the switch, but it requires additional sockets and installation space
Solution Approach 1:
The patent merges the auxiliary light source with the existing switch unit housing. The light source is integrated into the switch unit itself, combining multiple functions (switching control and finding illumination) into a single device. This eliminates the need for separate auxiliary lighting installations near doors.
Solution Approach 2:
The switch unit becomes multi-functional by incorporating both the switching function and the finding light function. The housing serves dual purposes: as the structural enclosure for the switch mechanism and as the mounting structure for the light source. This universal design allows one device to fulfill multiple functions that previously required separate components.
3Ease of operation
If a light source is integrated into the switch unit, then it provides illumination without additional installation space, but it consumes additional energy
Solution Approach 1:
The patent applies periodic action by controlling the light source to operate only when needed. The light source is switched on periodically based on detection of main lighting status, providing illumination temporarily to help users find the switch, then turning off when no longer needed. This intermittent operation significantly reduces energy consumption compared to continuous operation.
Solution Approach 2:
The system uses feedback control through the control unit that monitors the switching state of main lighting and automatically activates the light source accordingly. When the control unit detects that main lighting is switched off, it activates the light source; when main lighting is on, it deactivates the light source. This feedback mechanism ensures the light source operates only when necessary, optimizing energy efficiency.
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 easy location and activation of the switch unit in dark rooms through presence detection and adjustable lighting, ensuring safe and convenient operation.
Implementation Method 1
The switch-presence detector unit can include at least one infrared presence or motion detector sensor element, in which the heat radiation from people or other heat sources, such as e.g. animals, which are in the detection or Move the detection range of a sensor element
Implementation Method 2
at least one brightness sensor can detect the ambient brightness in the room surrounding the switch unit
Implementation Method 3
Backlighting can also make it easier to find the switch unit. The functional status of the switch can be indicated by backlighting with differently colored light-emitting diodes (LEDs)
Data Source
AI summary
The invention concerns a switch unit (1) having at least one base part (17, 80), at least one switch-presence detector unit (10) which has presence-detection and pressure switch functionality and is disposed so as to be movable with respect to the base part (17, 80) being provided.