Active Radio Cat Flap Locking Distance Measurement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electronic cat flaps using RFID technology have limited range, leading to unauthorized access when authorized cats are at a distance, causing them to be locked out and potentially losing confidence in their home.
Innovation Solution
Implementing bidirectional active radio technology with distance measurement through reception field strength comparison to a stored reference value, ensuring only signals from cats within a defined area are accepted, and using encryption for secure communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If RFID technology is used for identification, then the system is inexpensive and does not require its own energy source, but the range is very small at just a few centimeters
Solution Approach 1:
The patent changes the technical parameters of the radio communication system by using active radio technology with higher transmission power and optimized antenna design, enabling identification ranges of several meters while maintaining energy efficiency through controlled transmission cycles
Solution Approach 2:
The patent replaces the passive RFID system with an active radio communication system that uses bidirectional signal exchange, substituting the magnetic field-based identification with electromagnetic wave-based communication for extended range
2Loss of time
If the radio range is extended to identify cats from a distance, then cats can be identified earlier, but unauthorized animals can also gain access when the authorized cat is within range
Solution Approach 1:
The system performs preliminary identification of authorized cats at a distance before they reach the flap, unlocking the mechanism in advance, while maintaining security through continuous verification and encrypted communication protocols
Solution Approach 2:
The bidirectional radio communication enables continuous feedback between the collar and base device, allowing the system to verify authorization status dynamically and adjust the locking state accordingly, preventing unauthorized access
3Length of stationary object
If active radio technology is used with extended range, then cats can be identified from a distance, but the risk of unauthorized access increases
Solution Approach 1:
The system establishes preliminary radio contact with authorized cats at a distance, verifying their identification before unlocking, while maintaining security through encrypted communication and continuous authorization checks
Solution Approach 2:
The system dynamically adjusts the locking state based on real-time radio communication status, unlocking only when an authorized cat is detected and maintaining locked state otherwise, with continuous monitoring to prevent unauthorized access
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
Reliably allows authorized cats to pass while keeping others out by ensuring timely identification and secure communication, enhancing the cat's confidence and reducing battery life issues.
Implementation Method 1
the radio interface and the radio transmitter having a bidirectional, use active radio technology
Implementation Method 2
with a reception field strength being measured and compared with a previously stored reference value
Data Source
Figure 1~2
Figure 3~4
AI summary
Device for identifying a cat for the purpose of controlling an electronic cat flap, comprising: • a cat flap comprising a base unit with a radio interface and a locking unit for electromechanical locking of the cat flap, and • a collar for a cat on which a radio transmitter is arranged, wherein • the radio interface and the radio transmitter employ bidirectional, active radio technology, and • the base unit and/or the collar is designed to determine the distance between the cat and the cat flap by measuring the received field strength and comparing it with a previously stored reference value, so that only signals from cats within a defined area around the cat flap are accepted.