Heartbeat detection method among multiple operating systems and in-vehicle infotainment system

Abstract

The invention provides a heartbeat detection method among multiple operating systems and a vehicle-mounted infotainment system. A first channel built based on a virtual machine manager is arranged between a first system and a second system of the multiple operating systems, the first system is provided with a heartbeat receiving end and a first driving module, and the second system is provided with a heartbeat sending end and a second driving module. The detection method comprises the steps that the second system writes a current heartbeat event sent by a heartbeat sending end into a first channel through a second driving module to serve as a first heartbeat event; the first system reads the first heartbeat event from the first channel through the heartbeat receiving end via the first driving module; the first system determines whether the second system is abnormal according to the first heartbeat event. According to the heartbeat detection method among the multiple operating systems, heartbeat detection is performed through the first channel established based on the virtual machine manager, so that the first system monitors the state of the second system under the condition of not depending on a network, and misjudgment of the first system on the state of the second system caused by network abnormality is effectively avoided.

Description

technical field [0001] The present application relates to the technical field of in-vehicle data communication, in particular to a heartbeat detection method among multiple operating systems and an in-vehicle system. Background technique [0002] The multi-operating system is to install at least two operating systems on the electronic device, and the two operating systems run together and share hardware devices. In order to monitor the operating status of each other, it is usually implemented in the form of one operating system sending a heartbeat packet to another operating system. [0003] The heartbeat detection between the existing dual-system vehicle and machine systems is generally realized through the local area network built between the systems, that is, the heartbeat packet is sent through the network heartbeat detection channel, and this method depends on the configuration of the network card and network services. Once the network communication between the two syst...

AI Technical Summary

Problems solved by technology

[0003] The heartbeat detection between the existing dual-system vehicle and machine systems is generally realized through the local area network built between the systems, that is, the heartbeat packet is sent through the network heartbeat detection channel, and this method depends on the configuration of the network card and network services. Once the network communication between the two systems When an exception occurs, the detecting system is prone to misjudgment of the state of the detected system

[0004] Therefore, it is urgent to find a method that can effectively avoid the misjudgment of the state of the detected system due to the delay or interruption of heartbeat packet reception due to problems such as network instability and disconnection.

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