Stable and efficient vehicle-mounted information transmission system and method

Abstract

The invention discloses a stable and efficient vehicle-mounted information transmission system and method. The method comprises the following steps: establishing a first communication path for one-to-one communication between electronic equipment and a central processing unit; dividing the electronic equipment into different groups according to the position of the electronic equipment in the vehicle body and the associated data signal type, and establishing a many-to-one second communication path with the central processing unit based on the electronic equipment of different groups; enabling the central processing unit to acquire the data signal from the first communication path and / or the second communication path, and generating a data signal for self operation processing according to aset algorithm; arranging a special communication assembly and a shared communication assembly at the same time; according to the position of the signal source in the vehicle and the importance level of the signal source, establishing a multi-level signal transmission path, so when one-to-one signal transmission between a certain signal source and the vehicle-mounted central control system is interfered, the signal source can be switched to the shared communication assembly in time, thereby guaranteeing normal transmission of signals, and improving the stability and reliability of the vehicle-mounted information transmission system.

Description

technical field [0001] The invention relates to the technical field of vehicle signal transmission, more specifically, it relates to a stable and efficient vehicle information transmission system and method. Background technique [0002] At present, many sensors and related devices are integrated on the car body, and the above-mentioned sensors and related devices are all connected to the vehicle central control system through data cables. For example, if the rear of the car is equipped with radar sensors and cameras for reversing assistance, the signals or images collected by the above-mentioned radar sensors and cameras need to be transmitted to the vehicle central control platform through data communication lines. [0003] In the current technology, the above-mentioned data transmission lines and data types are usually one-to-one (see figure 1 ), that is, a certain signal is only transmitted through its corresponding communication line, and the processing of the signal a...

AI Technical Summary

Problems solved by technology

However, the shortcomings of the above settings are relatively obvious, that is, when the communication line corresponding to a certain signal fails, it will often cause the loss of the above-mentioned signal or deviation from the actual situation, for example, the image signal transmitted by the reversing camera is delayed or even lost etc., which will bring hidden dangers to the safe driving of the vehicle

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