Vehicle Remote Control via Mobile Hotspot for Faster Commands
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Solution Overview
Problem
The existing vehicle remote control systems using cellular networks for command transactions are slow due to complexity and signal reception issues, negatively impacting user experience.
Innovation Solution
A vehicle remote control system that connects to a mobile device's wireless hotspot using a credential received through a cloud server via a wireless connection other than the hotspot connection, allowing for direct command execution and improved communication efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the vehicle uses an onboard modem through a cellular network for command transactions, then the system can achieve remote control functionality, but the command transaction time becomes long due to complexity and signal reception issues
Solution Approach 1:
The system segments the communication process into two distinct phases: credential transmission phase (using cloud server via cellular/Wi-Fi) and command execution phase (using direct Wi-Fi connection). This segmentation allows each phase to use the most appropriate communication method, reducing overall transaction time while maintaining reliability.
Solution Approach 2:
The system performs preliminary action by establishing a Wi-Fi connection and obtaining credentials from the cloud server before actual command execution. The vehicle proactively connects to the Wi-Fi network and retrieves necessary authentication information in advance, so that when a command needs to be executed, the communication channel is already ready, eliminating delays during the actual command transaction.
2Reliability
If the system uses a cloud server for credential transmission, then security and authentication are improved, but the overall system complexity increases
Solution Approach 1:
The system extracts the authentication and credential management functions into a separate cloud server component. This allows the vehicle and mobile device to focus on their primary functions while the cloud server handles the complex security protocols, credential verification, and authentication logic, thereby reducing the complexity burden on the individual devices while maintaining high security standards.
Data Source
AI summary
A vehicle includes a controller, programmed to responsive to receiving a credential for connecting to a wireless network from a mobile device, connect to the wireless network using the credential; and establish a link with the mobile device via the wireless network, wherein the credential is received through a cloud server via a wireless connection other than the wireless network.