In-Vehicle Ultrasonic Pest Repeller with Human Detection
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Solution Overview
Problem
Existing ultrasonic pest deterrents for vehicles are bothersome to humans and pets and continuously drain vehicle battery power due to continuous operation.
Innovation Solution
A system that activates and deactivates ultrasonic soundwaves and ultraviolet lighting based on human-related activity detection using sensors and user commands, with multiple modes to control emission and minimize power consumption, ensuring effective pest deterrence without disturbing humans or pets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ultrasonic soundwaves are emitted continuously to repel pests, then pest deterrence effectiveness is improved, but vehicle battery power consumption increases
Solution Approach 1:
The system implements periodic action by activating ultrasonic sound emission only during specific time periods (e.g., nighttime or dawn/dusk when pests are most active) rather than continuously. The controller monitors environmental conditions and adjusts the emission schedule accordingly, maintaining effective pest deterrence during high-risk periods while minimizing power consumption during low-risk periods.
2Reliability
If ultrasonic soundwaves are emitted continuously to repel pests, then pest deterrence effectiveness is improved, but disturbance to humans and pets increases
Solution Approach 1:
The system uses periodic action by limiting ultrasonic emission to specific time windows when pests are most active (such as nighttime or twilight hours) rather than operating continuously. This temporal segmentation ensures that humans and pets are not exposed to disturbing sounds during their active periods, while still providing effective pest deterrence during the targeted periods.
Solution Approach 2:
The system applies local quality by directing ultrasonic sound emission specifically toward areas where pests are detected or likely to be present, rather than emitting sound uniformly in all directions. The controller can adjust emission patterns based on sensor input to target specific zones, providing effective local pest deterrence while minimizing disturbance to humans and pets in other areas.
3Object-affected harmful factors
If sensors and intelligent control systems are added to detect human activity, then disturbance to humans and pets is reduced, but device complexity increases
Solution Approach 1:
The system implements universality by utilizing the vehicle's existing multi-functional components for multiple purposes. The vehicle's audio system, already designed for entertainment, is repurposed to generate ultrasonic pest deterrent sounds. The vehicle's existing sensors (motion detectors, occupancy sensors, or camera systems) are leveraged for dual purposes: monitoring for safety/security and detecting human/pet presence to control pest deterrent operation. This approach minimizes additional hardware requirements while achieving intelligent, disturbance-free pest protection.
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
Effectively repels pests while avoiding disturbance to humans and pets, reducing battery drain by using intelligent control of ultrasonic and UV emissions, ensuring vehicle protection without unnecessary power consumption.
Implementation Method 1
A pest deterrent mode is activated in response to a first user command by emitting ultrasonic soundwaves from a transducer
Implementation Method 2
A region around the vehicle is monitored for human-related activity within the region
Data Source
AI summary
In-vehicle transducers (speakers, sound exciters, or vibrating window panels) are used to generate the ultrasonic waves to repel pests, without driving away family pets or exposing nearby people. In one preferred method, a pest deterrent mode is activated in response to a first user command by emitting ultrasonic soundwaves from a transducer driven by an onboard audio system. A region around the vehicle is monitored for human-related activity within the region. The emission of ultrasonic soundwaves is deactivated when the human-related activity is detected. Emission of the ultrasonic soundwaves is resumed when the human-related activity is no longer detected. Then the pest deterrent may be set to a deactivated mode in response to a second user command.