Remote Vehicle Feature Control via Cellular Intermediary
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Solution Overview
Problem
Traditional vehicle key fobs for remote keyless entry have limited range and feature command options, requiring human intervention and lacking advanced authentication processes.
Innovation Solution
A method and system for remotely controlling vehicle features using a trigger device, such as a mobile phone or PDA, which sends command messages to a call center for authentication and then to the vehicle, enabling expanded range, more feature options, and automated authentication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional key fobs are used for remote control, then the system is simple to operate, but the range of operation is restricted and feature command options are limited
Solution Approach 1:
The patent introduces a server as an intermediary between the trigger device and the vehicle. The server receives feature requests from the trigger device, retrieves authentication credentials, validates the request, and forwards approved commands to the vehicle. This mediator architecture enables expanded feature control capabilities while keeping the trigger device itself relatively simple.
Solution Approach 2:
The server provides universal functionality by handling multiple types of feature commands, authentication methods, and communication protocols through a single platform. This allows the system to support diverse vehicle features and multiple trigger devices without requiring separate specialized systems for each function.
2Length of moving object
If traditional key fobs are used for remote control, then the device is easy to manufacture, but the range of operation is restricted
Solution Approach 1:
The server acts as a range-extending intermediary that receives requests from trigger devices anywhere within cellular network coverage, validates them, and communicates with the vehicle. This eliminates the need for direct short-range wireless communication between trigger device and vehicle, thereby extending operational range while using成熟 technologies.
Solution Approach 2:
The patent replaces traditional short-range radio frequency communication with cellular network communication. This substitution leverages existing widespread cellular infrastructure to extend range without requiring new specialized hardware, thereby maintaining ease of implementation while dramatically increasing operational distance.
3Reliability
If traditional key fobs are used for remote control, then the system requires minimal authentication, but human intervention is needed and security is limited
Solution Approach 1:
The system implements automated authentication where the server automatically retrieves credentials, validates trigger device requests, and determines authorization without requiring manual human intervention. The vehicle's control unit also automatically verifies credentials and executes commands, creating a self-service authentication system that enhances security while reducing human involvement.
Solution Approach 2:
The server implements feedback mechanisms by continuously monitoring authentication outcomes, tracking authorized devices, and updating credential validity. This feedback loop ensures that only authenticated devices can control vehicle features, with the system automatically responding to authentication successes and failures, thereby enhancing security through automated verification processes.
Data Source
AI summary
A method and system that enables users to remotely control or manage certain vehicle features, such as emergency flashers or a remote engine start, through the use of a trigger device other than a conventional vehicle key fob. For example, a trigger device like a mobile phone, a personal digital assistant (PDA), or a computer can be used to remotely control or activate select vehicle features. In one embodiment, short message service (SMS) messages are used to send feature commands either directly from the trigger device to the vehicle or via a call center or other message processing entity.