RFID Lidded Pet Dish Selective Compartment Access
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Solution Overview
Problem
In multi-pet households, existing pet food dishes lack control over food access, leading to unequal distribution and potential dietary imbalances, as well as unauthorized access by other pets, infants, or pests, especially when multiple pets share a dish.
Innovation Solution
A lidded pet food dish utilizing wireless RFID or IR technology to selectively open compartments based on associated pet tags, ensuring each pet has exclusive access to its designated compartment, with an override mechanism for the owner to monitor and refill as needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple pets share a common food dish, then the device complexity is reduced and ease of operation is improved, but food distribution fairness deteriorates and unauthorized access increases
Solution Approach 1:
The food dish is segmented into multiple separate compartments, each assigned to a specific pet. The lid is also segmented with multiple independently controllable sections. This segmentation allows each pet to access only its designated compartment while preventing access to others, thereby maintaining food distribution fairness while still allowing multiple pets to use the same dish structure.
Solution Approach 2:
An RFID reader and control system act as intermediaries between the pets and the food compartments. The RFID reader detects tags on collars worn by pets and triggers the motorized lid sections to open or close accordingly. This intermediary mechanism automatically enforces access control, preventing unauthorized access and ensuring each pet eats only from its designated compartment.
2Reliability
If a lidded dish with wireless access control is implemented, then food distribution control is improved and unauthorized access is prevented, but device complexity increases
Solution Approach 1:
The manual mechanical lid-opening mechanism is replaced with an automated motorized system controlled by RFID technology. Instead of requiring physical manipulation of a single lid, the system uses wireless communication to detect pet tags and automatically activates specific motorized lid sections. This substitution reduces the need for complex manual control mechanisms while improving access control reliability.
Solution Approach 2:
The RFID reader and control system serve multiple functions: identifying pets, determining which compartments to open, controlling motorized lids, and preventing unauthorized access. This multi-functionality consolidates what would otherwise require separate mechanisms into a single integrated system, reducing overall device complexity while maintaining reliable access control.
3Manufacturing precision
If separate compartments are assigned to individual pets, then food distribution fairness is improved and dietary control is enhanced, but the ease of operation deteriorates and access time increases
Solution Approach 1:
The system performs preliminary actions by pre-assigning specific compartments to specific pets and pre-programming the control system with this mapping information. When a pet approaches the dish, the RFID reader immediately recognizes the pet's tag and the control system instantly opens the pre-assigned compartment without requiring any decision-making or sequential access procedures. This preliminary setup eliminates access delays while maintaining fair distribution.
Solution Approach 2:
Each pet independently accesses its own designated compartment through automatic RFID recognition and motorized lid opening. The system serves each pet individually without requiring the pet to wait for others or manually open multiple lids. This self-service mechanism reduces access time by allowing simultaneous independent access to different compartments by different pets.
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
Ensures accurate and fair food distribution to individual pets, preventing unauthorized access while allowing the owner to monitor consumption and refill the dish efficiently.
Implementation Method 1
RFID technology relies on the storage and remote retrieval of data by means of one or more transmission or transponder devices that are frequently called RFID 'tags.' An RFID tag is a small electronic device that can be attached to or incorporated within a physical item or object for a number of different purposes. RFID tags contain micro-circuitry and antennas that enable them to receive and respond to radio frequency queries from an RFID transceiver.
Implementation Method 2
IR technology refers to the use of free-space propagation of light waves in the near infrared band as a transmission medium for communication. Using IR technology, a point-to-point connection between two devices may be constructed for very low cost, with one or two emitter light-emitting diodes (LEDs).
Data Source
AI summary
A lidded pet food dish uses wireless technology to independently and selectively open one of a plurality of lidded food compartments for access by a pet. The dish discriminates between pets by means of a tag worn by each pet to allow or prevent access to a given food compartment. Electronic circuitry for this functionality is operable by any wireless technology and provides for manual system override by the pet owner as well as remote control capability.