Trainable Transmitter Learning Across Garage Door Security Protocols
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing movable barrier operators, such as garage door openers, face compatibility issues when a vehicle's learning transmitter, which uses a unidirectional communication protocol, attempts to communicate with a newer model that requires a bidirectional security protocol, preventing seamless operation.
Innovation Solution
A method and system that enables a movable barrier operator to learn a learning transmitter using a legacy communication protocol, allowing it to communicate with both unidirectional and bidirectional protocols, by facilitating a transition to a compatible mode through a trainable transmitter and a server-mediated process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a vehicle learning transmitter uses a unidirectional communication protocol, then it can operate with legacy garage door openers, but it cannot communicate with newer garage door openers that require bidirectional security protocols
Solution Approach 1:
A server acts as an intermediary between the unidirectional learning transmitter and the bidirectional garage door opener. The server receives the transmitter's unidirectional communication, processes it through protocol conversion, and generates appropriate bidirectional communication sequences that the garage door opener can understand and execute securely.
Solution Approach 2:
The system enables the learning transmitter to serve multiple functions by making it compatible with both legacy unidirectional openers and modern bidirectional openers. Through the server-mediated protocol conversion, a single transmitter design can operate across different communication protocol eras without requiring hardware upgrades.
2Reliability
If newer garage door openers implement bidirectional security protocols, then communication security is improved, but compatibility with existing learning transmitters is lost
Solution Approach 1:
The server serves as a mediator that receives secure authentication requests from bidirectional openers and translates them into unidirectional learning transmitter commands. This allows the opener to maintain its bidirectional security requirements while the transmitter continues to use its simpler unidirectional protocol through the server's protocol translation layer.
Solution Approach 2:
The system changes the communication parameters dynamically based on the transmitter type. When a unidirectional learning transmitter is detected, the server adjusts the communication sequence to use unidirectional parameters. When a bidirectional transmitter is used, the full bidirectional security protocol parameters are activated, allowing the same opener to adapt to different transmitter capabilities.
3Adaptability or versatility
If protocol conversion hardware upgrades are required, then compatibility is achieved, but system complexity and cost increase
Solution Approach 1:
The server acts as a software-based intermediary that performs protocol conversion without requiring any hardware modifications to the transmitter or opener. The protocol translation happens in the communication layer through the server, eliminating the need for complex hardware upgrade chains between legacy and modern devices.
Solution Approach 2:
The patent replaces the mechanical/hardware approach to protocol conversion with a software-based solution. Instead of modifying hardware circuits or adding conversion hardware, the protocol translation is achieved through software processing on the server, reducing hardware complexity while maintaining compatibility.
Data Source
AI summary
In one aspect, a method is provided of effecting secure communications for a movable barrier operator and a trainable transmitter. The method includes, at the movable barrier operator, transmitting to a remote control a first radio frequency communication via a first communication protocol wherein the first radio frequency communication includes an access code. The method further includes receiving from the trainable transmitter a second radio frequency communication via a second communication protocol. The second radio frequency communication includes a derived access code based at least in part upon the access code. The method further includes learning the trainable transmitter in response to the derived access code corresponding to the access code.