Pet Feeder Door Control for Safe Access and Food Freshness
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Solution Overview
Problem
Existing animal feeders face issues such as frightening design for pets, risk of injury, food spoilage, difficulty in training, and lack of monitoring and control features, as well as inefficiencies in restricting access and maintaining food freshness.
Innovation Solution
An animal feeder with a door mechanism that adjusts its coverage based on the pet's proximity, incorporates a foldable door design to avoid injury, includes an air-tight seal, and features RFID authorization, proximity sensors, and remote monitoring for controlled feeding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the door covers the aperture to restrict access by other animals, then food theft is prevented, but the pet may be frightened and unable to see around
Solution Approach 1:
The door is designed to be dynamic rather than static, automatically adjusting its coverage based on the presence of the authorized pet. When the pet approaches, the door opens to allow visibility and access; when the pet leaves, the door closes to protect the food. This dynamic behavior resolves the contradiction by providing both protection and visibility at appropriate times.
Solution Approach 2:
The system uses sensors to detect the presence of the pet and provides feedback to the door mechanism. This feedback loop ensures the door responds appropriately to the pet's presence, opening when needed for visibility and closing when needed for protection, thereby resolving the contradiction between food security and pet comfort.
2Duration of action of stationary object
If the door is designed to close securely to keep food fresh, then food spoilage is reduced, but the pet may be injured if the door closes on their paw
Solution Approach 1:
The system performs preliminary detection of the pet's presence and position before the door closes. The sensors detect when the pet has completely left the area, and only then does the door close. This preliminary action prevents the door from closing on the pet's paw while still achieving secure closure for food freshness.
Solution Approach 2:
The door closure is made dynamic and conditional rather than automatic and fixed. The door only closes when sensors confirm the pet is absent, creating a safe dynamic system that protects food while preventing injury.
3Ease of operation
If air holes are provided to allow the pet to smell the food, then the pet is attracted to the feeder, but food spoilage increases due to air exposure
Solution Approach 1:
The ventilation system is dynamic, with air holes that automatically open when the pet is present and close when the pet is absent. This allows the pet to smell and be attracted to the food when needed, while minimizing air exposure and preventing spoilage when the pet is not present.
Solution Approach 2:
The air hole mechanism receives feedback from sensors about pet presence. When the pet is detected, the air holes open to allow smelling and attraction; when the pet leaves, the air holes close to preserve food freshness. This feedback-controlled system resolves the contradiction between attraction and preservation.
4Object-affected harmful factors
If a sliding door mechanism is used to allow paw removal, then pet injury is avoided, but the device becomes bulky requiring more space
Solution Approach 1:
The complex mechanical sliding door system is replaced with a simpler rotational door mechanism controlled by sensors. The sensor-based control provides the same safety function (preventing paw trapping) without requiring the bulky sliding mechanism, thereby reducing the overall feeder size while maintaining injury prevention.
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 feeder trains pets to use it comfortably, reduces food spoilage, minimizes access by unauthorized animals, and provides remote monitoring and control for improved pet care.
Implementation Method 1
A loop antenna may be situated to optimise the readability of the RFID tag
Implementation Method 2
the feeder comprises a sensor to detect when an animal has moved away from the aperture
Data Source
AI summary
Animal feeders, an animal feeding monitor and a method of training an animal to use a feeder. An animal feeder may have a housing including an aperture for a food bowl and having a door for covering the aperture, the feeder including a door mechanism to control movement of the door over the aperture, wherein the feeder including a sensor to detect when an animal has moved away from the aperture, and the feeder is configured to be operable in a training mode wherein the door mechanism is operable to control the door to cover a portion of the aperture in response to detecting that an animal has moved away and subsequently responding to one or more later detections by controlling the door to cover a portion of the aperture larger than the preceding portion.