Vehicle Control System MAPP Fallback for Reliable Command Delivery
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Solution Overview
Problem
Vehicles in regions with limited coverage of next-generation high-speed cellular data networks may fail to receive control commands due to inadequate signal reception, necessitating alternative communication protocols to ensure command delivery.
Innovation Solution
A control system for vehicles that sends a Mobile Application Part Protocol (MAPP) message to the server requesting further commands via MAPP when a packet-switched connection cannot be established, utilizing a method to determine connection likelihood based on signal strength and type, and attempting connections over multiple communication paths before resorting to MAPP messaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If packet switched connection is used for command transmission, then high-speed data transfer is achieved, but coverage availability deteriorates in regions with limited network infrastructure
Solution Approach 1:
The system dynamically changes communication parameters by switching between packet-switched connections (for high speed) and MAPP messages (for broad compatibility). When packet-switched connections fail to establish, the system transitions to using MAPP messages over circuit-switched channels, thereby adapting the communication mode to match available network infrastructure and ensure reliable command delivery.
2Reliability
If MAPP message is used for command transmission, then coverage availability is improved, but data transfer speed deteriorates compared to packet switched connections
Solution Approach 1:
The communication system operates dynamically by attempting packet-switched connections first for optimal speed, then falling back to MAPP messages when necessary. This dynamic adaptation ensures the system uses the fastest available communication method while maintaining reliability across diverse network conditions.
3Reliability
If multiple connection attempts are made before using MAPP, then connection reliability is improved, but communication time increases
Solution Approach 1:
The system performs preliminary actions by attempting packet-switched connections before resorting to MAPP messages. This preliminary attempt at the preferred communication method allows the system to establish reliable, high-speed connections when possible, while having a prepared fallback mechanism to minimize time loss when multiple attempts fail.
Data Source
AI summary
A control system for a vehicle includes a controller configured to send a mobile application part protocol (MAPP) message to the server requesting that further commands be sent via the MAPP. The control system may send the MAPP message responsive to receiving a message containing a wakeup command from a server and being unable to establish a packet switched connection with the server. The control system may start the vehicle responsive to receiving a MAPP message from the server containing a command to start the vehicle.