Trainable Transmitter Multi-Format Support
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional trainable transmitters for remote electronic devices, such as garage door openers, are limited to learning only one data format at a time, making them ineffective when faced with multiple interleaved data formats, and often fail to activate the receiver due to confusion or incorrect training.
Innovation Solution
A trainable remote device equipped with a transmitter circuit and controller that can learn and output multiple control packet formats, allowing it to communicate effectively with receivers configured for different data formats, including both older and newer formats like KeeLoq and AES, by reorganizing captured data and utilizing a shared rolling code for all recognized formats.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a conventional trainable transmitter is designed to learn only one data format at a time, then the device complexity is reduced and ease of manufacture is improved, but the adaptability to work with multiple data formats (especially newer secure formats like AES) deteriorates
Solution Approach 1:
The transmitter is designed to support multiple data formats (KeeLoq, AES, and other proprietary formats) within a single device. The controller can be trained to recognize and transmit various formats, making the transmitter universal and compatible with both older and newer barrier operators without requiring separate devices for each format.
2Adaptability or versatility
If a trainable transmitter uses a guess and test method to determine data format, then the adaptability to multiple formats is improved, but the ease of operation deteriorates due to user feedback requirements
Solution Approach 1:
The transmitter automatically determines the correct data format through its training mode by capturing and analyzing communication packets between the pre-programmed device and the barrier operator. The controller self-configures by extracting format parameters from captured packets, eliminating the need for user feedback or manual format selection.
3Adaptability or versatility
If a transmitter is designed to support multiple data formats, then the adaptability improves, but the device complexity increases
Solution Approach 1:
The transmitter captures actual communication packets from a pre-programmed device during training mode and copies the exact data format and parameters used by that device. By replicating the original format rather than implementing multiple formats from scratch, the transmitter achieves multi-format compatibility while keeping the internal structure relatively simple.
4Ease of manufacture
If conventional transmitters cannot work with newer secure formats like AES, then the ease of manufacture is improved, but the reliability of operation with modern systems deteriorates
Solution Approach 1:
The transmitter implements dynamic format selection capability where the controller can adaptively switch between different data formats (KeeLoq, AES, etc.) based on which format was captured during training. This dynamic adaptability ensures reliable operation with both older and newer barrier operators, including those using secure AES encryption.
Data Source
AI summary
A remote device configured to control operation of a remote electronic device, such as a garage door opener, is provided. A transmitter circuit may be configured to receive and transmit communications directed to the remote electronic device. The communications may include data arranged according to a plurality of the control packet formats, and communications to the remote electronic device may include data transmitted according to the plurality of control packet formats.