HUD Image Stabilization with SER/DES Error Detection and Motor Reset
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Solution Overview
Problem
In head-up display (HUD) systems, synchronization mismatches between master and slave devices due to SER/DES setting abnormalities lead to unstable image display, particularly during high-speed transmission, affecting the integrity of the image display.
Innovation Solution
A method and device are introduced to stabilize HUD image display by ensuring SER/DES setting integrity through data contamination detection, communication error handling, and unconfirmed disturbance management, with the master device adjusting motor and LED backlight operations to maintain synchronization and notify the master of any malfunctions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If I2C communication with SER/DES configuration is used for high-speed data transmission between master and slave devices, then transmission speed is improved, but operation synchronization stability deteriorates due to setting abnormalities and environmental interference
Solution Approach 1:
The patent applies preliminary action by performing SER/DES setting stabilization and initialization before high-speed data transmission begins. The master device ensures proper SER/DES configuration is established in advance, and the slave device prepares its reception state beforehand, preventing synchronization mismatches that would occur during actual transmission operations.
Solution Approach 2:
The patent implements feedback mechanisms where the slave device monitors its operational state including motor position and LED backlight status, then feeds back this information to the master device. The master device uses this feedback to detect synchronization mismatches and initiate corrective actions, ensuring continuous synchronization stability during high-speed transmission.
2Ease of manufacture
If function segregation is implemented with separate master and slave devices for HUD operations, then system modularity and ease of manufacture are improved, but operation synchronization mismatch increases due to independent processing in each device
Solution Approach 1:
The patent merges the operational coordination function into a unified master device that centrally controls both SER/DES settings and slave device operations. While manufacturing remains modular with separate master and slave devices, the operational control is combined in the master device, which manages height adjustment signals, backlight control, and synchronization monitoring to prevent mismatches.
Solution Approach 2:
The master device acts as an intermediary between the external environment and the slave device. It receives external control signals, processes them through SER/DES configuration, and translates them into appropriate slave device commands. This intermediary role ensures synchronized operation while maintaining the manufacturing benefits of device separation.
3Productivity
If SER/DES converts parallel signals to serial signals for transmission, then transmission efficiency is improved, but data contamination and setting abnormalities increase leading to display failures
Solution Approach 1:
The patent applies preliminary anti-action by implementing setting stabilization measures before SER/DES conversion and transmission begins. The master device ensures proper initialization and configuration of SER/DES parameters in advance, and establishes error detection mechanisms beforehand, preventing data contamination and setting abnormalities that would compromise transmission integrity.
Data Source
AI summary
A HUD system includes a master configured to generate a height change signal for a HUD image and transmit the height change signal; a slave configured to receive the height change signal from the master and adjust a height of the HUD image according to the height change signal; and a connection device configured to connect the master to the slave, wherein the slave drives a motor configured to adjust the height of the HUD image when the slave receives the height change signal, and responds to the master through reflection of a stopped state during movement or a movement amount excess state of the motor to notify the master of a malfunction of the motor when driving of the motor is completed, and the master requests the slave to reset a position of the motor in response to the response of the slave.