Dual Input Hob Interface for Touch Display Heat Protection
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Solution Overview
Problem
Touch displays on interaction devices are vulnerable to damage from hot items, leading to aging or destruction, necessitating a cost-effective protection solution.
Innovation Solution
The implementation of a secondary input unit with a sensitive surface and sensor unit to protect the primary input unit, utilizing the same or similar detection and information processing units, which can detect items exceeding a predefined threshold value and trigger alarms or cooling measures to prevent damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a touch display is used as an input unit, then the user interface functionality is improved, but the susceptibility to damage from hot items increases
Solution Approach 1:
A second protective input unit is introduced as an intermediary layer between hot items and the primary touch display. This protective layer detects the presence of hot items through its sensor unit and triggers protective actions (alarm signals, cooling measures) before the hot items can damage the primary display, thus mediating the harmful thermal effects.
Solution Approach 2:
The protective input unit performs preliminary detection of hot items before they can cause damage to the primary touch display. By detecting thermal changes or direct contact in advance, the system can activate protective measures (such as cooling fans or alarm signals) preemptively, preventing the harmful effects from manifesting on the primary display.
2Reliability
If a protective mechanism is added to protect the touch display, then the protection capability is improved, but the device complexity increases
Solution Approach 1:
The protective input unit utilizes detection units and information processing units that are of the same or similar type as those in the primary touch display. This multi-functional approach allows the protective mechanism to leverage existing system components, reducing the need for entirely new specialized parts and thereby limiting the increase in overall device complexity while still achieving enhanced protection capability.
3Ease of manufacture
If the same detection unit is used for both input units, then the manufacturing cost is reduced, but the detection precision for different input types may be compromised
Solution Approach 1:
While using the same type of detection unit for both input units, the system adjusts detection parameters and threshold values to optimize performance for different input types. The control unit processes signals from both sensors with different evaluation criteria, maintaining manufacturing simplicity while achieving appropriate detection precision for each input unit's specific function.
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 solution effectively protects touch displays from overheating and mechanical damage by using a secondary input unit to detect and respond to potentially hazardous items, allowing for continued operation and preventing damage to the primary input unit.
Implementation Method 1
the first and/or the second sensor unit comprises metal, especially aluminium, copper and/or nickel and/or is a capacitive sensor unit
Data Source
AI summary
The invention relates to an interaction device (1), comprising a) a first input unit (20) with a first sensitive surface, especially a touch display, and a first sensor unit, b) a second input unit (2-12) with a second sensitive surface and a second sensor unit, c) wherein the second input unit (2-12) is used for protection of the first input unit (20), especially against overheating and/or mechanical damaging. Furthermore, the invention relates to a glass ceramic hob (22), especially induction cooking hob, with an interaction device (1) according to the invention a) wherein preferably the interaction device (1) is arranged in a side and/or edge area of the glass ceramic hob and/or arranged at the lower surface of the glass ceramic hob (22) and/or b) wherein preferably the glass ceramic hob comprises a fan for ventilation. Furthermore, the invention relates to a method for protection of an input unit, preferably for an interaction device and/or a glass ceramic hob according to the invention, comprising a) a first input unit (20) with a first sensitive surface, especially a touch display, and a first sensor unit, b) a second input unit (2-11) with a second sensitive surface and a second sensor unit, c) wherein the second input unit protects the first input unit, d) wherein after an input has been detected by the second input unit, especially after a preselected threshold value has been exceeded, e) the input value is compared with at least one preselected threshold value, f) wherein the at least one threshold value is preferably larger than a threshold value generated by the press or the touch of a finger, g) wherein after exceeding the at least one threshold value, g1) the first input unit (20) is turned off and/or g2) the heating energy for the glass ceramic hob, especially the induction current, is turned off to decrease the temperature and/or g3) an alarm is generated, especially an optical or acoustical alarm, to warn the operator and/or g4) the speed of the fan is increased to decrease the temperature.