Cross-domain communication method, system and device for intelligent cabin and storage medium

Abstract

The embodiment of the invention provides a cross-domain communication method, system and device for an intelligent cabin and a storage medium. The method comprises: applying for a shared memory, and creating a sending thread and a receiving thread; writing, by the input field module, at least one signal data into the shared memory according to the operation instruction; performing standardization processing on the signal data according to a unified data layering model; reading, by the receiving domain module, the message content of the standardized signal data of the shared memory in sequence; and when the message content is the application program instruction, executing by the corresponding application program. Standardization processing is carried out on signal data by adopting a unified data layering model, and the problem that domain modules of different operating systems write and read the signal data is solved, so that cross-domain communication is realized under the condition that a network interface and a protocol stack are not needed. In addition, a shared memory is adopted among a plurality of domain modules to write and read data, so that the cross-domain communication rate is further improved.

Description

technical field [0001] The invention belongs to the technical field of smart cars, in particular to a cross-domain communication method, system, device and storage medium for a smart cockpit. Background technique [0002] In recent years, as consumers have more and more demands for intelligent cars, more and more models are equipped with central control large-screen entertainment system, full LCD instrument, head-up display, air conditioning control and co-pilot entertainment system, etc., but more and more More and more electronic units have caused a sharp increase in the cost and power consumption of the vehicle. Therefore, the smart cockpit domain controller that integrates the above multiple systems into one chip (SOC) is becoming more and more popular. [0003] Intelligent cockpit controllers are generally divided into control domain, entertainment domain, and driving information domain. Among them, the control domain usually runs on the RTOS system on the R core, the ...

AI Technical Summary

Problems solved by technology

[0005] 1) All domains that realize cross-domain communication must support the TCP / IP protocol stack, while the security domain of the smart cockpit controller is generally a single-chip microcomputer, without network interface or protocol stack, and does not support Socket communication;

[0006] 2) The network protocol code is complex and the communication rate is low, generally only a few MB / S

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