Control method, controller, system and storage medium of reversing image system

Abstract

The invention discloses a control method, a controller, a system and a storage medium of a reversing image system. The method comprises the following steps of receiving an application request of one of a plurality of hardware modules; inquiring a memory block in an available state capable of being used by a certain hardware module from a plurality of memory blocks; allocating the memory block in an available state to a certain hardware module to allow the certain hardware module to writing and / or reading a reversing picture to the allocated memory block; the available state means that a certain hardware module has completed the writing and / or reading operation to the memory block at the next higher level hardware module in the time sequence. According to the mode, any memory block can be guaranteed to be used only in a single hardware module, garbage data cannot be generated between two adjacent hardware modules, and the reversing picture is normally displayed.

Description

technical field [0001] The present application relates to the technical field of automotive electronics, in particular to a control method, controller, system and storage medium of a reversing image system. Background technique [0002] In the car machine field, the reversing screen display function involves multiple hardwares working together. To complete the reversing screen display, the car machine needs to call multiple underlying hardware to drive, and cooperate to complete signal acquisition, signal decoding, image enhancement, and image display. Work; multiple underlying hardware is an independent part at the physical level. Due to the physical isolation between each hardware, the lack of hardware signal lines to connect, there is no signal or data synchronization method, and the working speed of each module is affected by the input work due to inconsistent functions. Clock speed control, each module undertakes different tasks, and the working speed is different. Beca...

AI Technical Summary

Problems solved by technology

[0002] In the car machine field, the reversing screen display function involves multiple hardwares working together. To complete the reversing screen display, the car machine needs to call multiple underlying hardware to drive, and cooperate to complete signal acquisition, signal decoding, image enhancement, and image display. Work; multiple underlying hardware is an independent part at the physical level. Due to the physical isolation between each hardware, the lack of hardware signal lines to connect, there is no signal or data synchronization method, and the working speed of each module is affected by the input work due to inconsistent functions. Clock speed control, each module undertakes different tasks, and the working speed is different. Because the image enhancement module undertakes too many tasks, it is easy to have a backlog of processing tasks, which eventually manifests as frame skipping or discontinuous content on the car display screen.

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