Upgrading method adaptive to multiple screens

A screen and screen-driven technology, applied in the field of in-vehicle entertainment systems, can solve problems such as unfavorable automotive technology development and high cost requirements, and achieve the effects of reducing version maintenance costs, improving code reuse, and improving development efficiency.

Pending Publication Date: 2022-04-29
YANFENG VISTEON ELECTRONICS TECH NANJING
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing technical solution is to provide a set of in-vehicle entertainment system software for each type of screen to meet the upgrade needs of the entertainment screen. When the screen needs to be replaced, the in-vehicle

Method used

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  • Upgrading method adaptive to multiple screens
  • Upgrading method adaptive to multiple screens
  • Upgrading method adaptive to multiple screens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0032] Example: such as figure 1 As shown, a method for adapting multiple screen upgrades, the method includes the following steps:

[0033] 1) After the vehicle entertainment system is turned on, the vehicle SOC processor starts to enter the Bootloader program and obtains the information of the entertainment screen;

[0034] 2) After the vehicle-mounted SOC processor obtains the signal of the entertainment screen, it modifies the screen driver node of the kernel device tree according to the obtained information;

[0035] 3) The screen driver selects the upgrade protocol of the entertainment screen according to the node data of the device tree to upgrade;

[0036] 4) After selecting the appropriate entertainment screen upgrade protocol, the entertainment screen software will be upgraded normally.

[0037] In this solution, the vehicle-mounted SOC processor of the vehicle-mounted entertainment system is MTK2712, and the vehicle-mounted MCU processor is RenesasRH850. The vehic...

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Abstract

The invention discloses an upgrading method adaptive to multiple screens. The method comprises the following steps that (1) after the vehicle-mounted entertainment system is started, a vehicle-mounted SOC processor is started to enter a Bootloader program and obtains entertainment screen information, and (2) after the vehicle-mounted SOC processor obtains a signal of an entertainment screen, the vehicle-mounted SOC processor modifies a screen driving node of a kernel device tree according to the obtained information, and then the vehicle-mounted SOC processor sends the modified screen driving node to the kernel device tree according to the modified screen driving node. (3) a screen driver selects an upgrading protocol of the entertainment screen for upgrading according to node data of the equipment tree, and (4) after the appropriate upgrading protocol of the entertainment screen is selected, software of the entertainment screen is upgraded normally, in the scheme, a vehicle-mounted system stores manufacturer information, backlight switch states, upgrading protocol numbers and other information of the entertainment screen in an EEPROM, the EEPROM is controlled by a vehicle-mounted MCU processor end, and the software of the entertainment screen is upgraded normally. And the EEPROM has the characteristic of no loss of power-down data, so that the information of the entertainment screen can be well stored.

Description

technical field [0001] The invention belongs to the field of vehicle entertainment systems, and in particular relates to an upgrading method for adapting multiple screens. Background technique [0002] With the development of automobile technology, the requirements for the entertainment screen of the car entertainment system are becoming more and more complex. There may be a need for the car entertainment system to adapt to multiple entertainment screens, and each screen may have a different upgrade plan. The existing technical solution is to provide a set of in-vehicle entertainment system software for each type of screen to meet the upgrade needs of the entertainment screen. When the screen needs to be replaced, the in-vehicle entertainment system software needs to be provided again, and the maintenance cost of the in-vehicle entertainment system software version is required The requirements are very high, which is not conducive to the development of automobile technology....

Claims

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Application Information

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IPC IPC(8): G06F8/654G06F8/71H04L69/06
CPCG06F8/654G06F8/71H04L69/06
Inventor 唐明
Owner YANFENG VISTEON ELECTRONICS TECH NANJING
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