Vehicle Multimedia Terminal Integration Micom Remote Control
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Solution Overview
Problem
Existing vehicle remote control systems face challenges in rapid remote control due to the slower booting speed of multimedia terminals compared to communication processing speeds, which hinders efficient vehicle maintenance and repair, especially in extreme environments.
Innovation Solution
A multimedia terminal for vehicles that includes an integration microcontroller (micom) independent from the main CPU, capable of booting a guest operating system to interpret and execute remote control commands before the main CPU is booted, allowing for independent power control and efficient data processing, including charging and conditioning operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the multimedia terminal uses a general main CPU for remote control processing, then the system structure is simple, but the booting and processing speed is lower than communication processing speed
Solution Approach 1:
The system divides the multimedia terminal into two independent processing units: a main CPU for general vehicle control functions and a separate integration micom specifically for remote control processing. This segmentation allows the integration micom to handle remote control commands independently with optimized booting speed, resolving the contradiction between processing speed and system simplicity by adding a dedicated component only where needed.
Solution Approach 2:
The integration micom acts as an intermediary between the modem (communication module) and the main CPU. It receives remote control commands from the modem, processes them independently, and then communicates with the main CPU only when necessary. This intermediary structure enables faster remote control response without requiring the entire main CPU system to boot up, thus improving speed while maintaining reasonable system complexity.
2Speed
If the main CPU is always powered on for rapid remote control, then remote control speed is improved, but power consumption increases
Solution Approach 1:
The system segments power management into two independent control domains: the main CPU power state and the integration micom power state. The integration micom can be powered on independently and quickly to handle remote control commands, while the main CPU remains powered off or in low-power mode until needed. This segmentation resolves the contradiction by allowing rapid remote control response through the always-ready integration micom without continuously powering the main CPU.
Solution Approach 2:
The integration micom is designed to boot up in advance and be ready to process remote control commands before the main CPU is activated. This preliminary action ensures that when a remote control command arrives, the integration micom is already operational and can process it immediately, eliminating the need to keep the main CPU continuously powered on and thus reducing overall power consumption while maintaining fast response speed.
3Productivity
If the multimedia terminal processes all remote control commands through the main CPU, then processing capability is sufficient, but remote control time is extended
Solution Approach 1:
The system segments command processing into two stages: the integration micom handles initial remote control command processing, interpretation, and basic control operations independently and quickly. Only when the main CPU's involvement is necessary does it activate. This segmentation enables most remote control operations to be completed by the integration micom alone, significantly reducing remote control time while maintaining sufficient processing capability for complex commands.
Solution Approach 2:
The integration micom is designed to handle partial remote control processing independently without requiring full main CPU activation. It can interpret commands, control vehicle controllers, and manage communication partially on its own. This partial action approach resolves the contradiction by providing adequate processing capability for most remote control scenarios while avoiding the time penalty of always activating the full main CPU system.
Data Source
AI summary
A data processing method of a multimedia terminal for a vehicle includes booting, by an integration micom, a guest operation system according to a wakeup command received from a modem included in the multimedia terminal for the vehicle. The integration micom is physically independent from a main central processing unit (CPU). The method further includes interpreting a remote control command received from the modem by middleware executed by the guest operation system, and performing, by the multimedia terminal for the vehicle, a control operation according to the remote control command. A multimedia terminal for a vehicle is also disclosed.