Piezo Door Handle Trigger for Electronic Device Location
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Solution Overview
Problem
Conventional vehicle remote controls, such as key-fobs and mobile devices, are prone to being lost or misplaced, lacking effective solutions for tracking or alerting users of potential unauthorized vehicle entry.
Innovation Solution
An electronic device finder system is integrated into vehicles, featuring a door handle with a piezo switch and signal transmitter, which triggers an alarm on connected devices like key-fobs or mobile devices via short-range wireless communication or cellular networks when the door handle is activated, enabling location and alerting the user of potential unauthorized access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional key-fobs or mobile devices are used as vehicle remote controls, then convenience of operation is improved, but reliability of locating the device is worsened as they can be easily lost or misplaced
Solution Approach 1:
The system implements feedback by having the vehicle's door handle send a signal to the electronic device when the door handle is actuated, allowing the user to locate the device through visual or audible feedback from the device's display or speaker
Solution Approach 2:
The system uses color changes (visual feedback) on the electronic device's display to indicate its location and status, helping users quickly identify and locate their device among potential alternatives
2Device complexity
If no tracking system is integrated into the vehicle, then device complexity is reduced, but loss of information about device location occurs
Solution Approach 1:
The door handle serves multiple functions: it acts as both a mechanical door opening mechanism and a signal trigger for the electronic device location system, eliminating the need for separate tracking hardware and reducing overall system complexity
3Reliability
If a signal transmitter is integrated into the door handle, then reliability of detecting unauthorized entry is improved, but use of energy increases due to continuous signal transmission
Solution Approach 1:
The signal transmitter operates periodically or on-demand rather than continuously, activating only when the door handle is actuated, thus maintaining reliable detection capability while significantly reducing energy consumption
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 system effectively helps users locate lost or misplaced devices and alerts them of potential unauthorized vehicle entry, enhancing security and convenience by utilizing piezo switches and communication modules for door handle-activated signals.
Implementation Method 1
a piezo switch operatively positioned within the door handle, and a signal transmitter operatively connected to the piezo switch. The piezo switch has an on state that is triggered by door handle movement
Data Source
AI summary
An electronic device finder system includes a vehicle having a door handle, a piezo switch operatively positioned within the door handle, and a signal transmitter operatively connected to the piezo switch. The piezo switch has an on state that is triggered by door handle movement, and the signal transmitter is to generate a signal in response to detection of the on state of the piezo switch. An electronic device, selected from the group consisting of a key-fob and a mobile device, includes a signal receiver to receive the signal from the signal transmitter and an alarm system operatively connected to the signal receiver. The alarm system is to generate an alarm in response to the signal receiver receiving the signal.