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Device identification method in in-vehicle network

A vehicle-mounted network and vehicle-mounted device technology, applied in the field of vehicle-mounted information networks

Active Publication Date: 2022-07-08
CHINA NORTH VEHICLE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is: how to propose a device identification method in the vehicle network for the lack of flexibility and versatility in the existing vehicle network system equipment identification, and requires the method to be able to overcome possible address conflicts Or the problem of not being able to access freely, but adaptively assigning addresses or identifiers to devices connected to the vehicle network, supporting versatility, flexibility and random access

Method used

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  • Device identification method in in-vehicle network
  • Device identification method in in-vehicle network
  • Device identification method in in-vehicle network

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0051] This example assumes that figure 2 It is the initial form of the in-vehicle network. At this time, there are three types of devices A, B, and C in the network and the gateway of the network. Among them, there are two types of A and B devices in the network. For example, A represents a general-purpose computer processor, and B represents Universal image processing machine, the functions, structures and interfaces of two devices of the same type A and B are exactly the same. The device names of the three devices A, B, and C are A, B, and C.

[0052] (1) Device discovery process

[0053] After startup, during the network establishment process, the gateway of the in-vehicle network assigns network addresses to 2 A devices, 2 B devices, and C devices in the network, for example, the addresses in Ethernet can be A: 10.0.0.2, 10.0 .0.3; B: 10.0.0.4, 10.0.0.5; C: 10.0.0.6, in the FC network, it can be A: 0x10003, 0x10103; B: 0x10006, 0x10108; C: 0x10102, where the last digit o...

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Abstract

The invention belongs to the technical field of in-vehicle information networks, and in particular relates to a device identification method in an in-vehicle network. The method is divided into a device discovery process, a name assignment process, and a network establishment process. This scheme can be used for peer-to-peer switching or bus networks. The beneficial effect of the present invention is that the identification of all communication nodes in the in-vehicle network can be established without depending on the physical parameters of the equipment, which is used for application software deployment, communication end-to-end connection establishment, fault recovery and system reconstruction and other in-vehicle information systems. Support for important functions.

Description

technical field [0001] The invention belongs to the technical field of in-vehicle information networks, and in particular relates to a device identification method in an in-vehicle network. Background technique [0002] At present, in-vehicle networks are mainly divided into two categories, one is a bus network such as CAN, FlexRay, etc., and the other is a switched network such as Ethernet, FC fiber channel, etc. The existing bus network adopts a broadcast communication method, and all nodes can receive it when one party sends it, so it is generally distinguished by the frame ID; the point-to-point network needs to specify the end-to-end network address because it relies on technologies such as switching and routing. For example, when Ethernet switching is used, it is necessary to use the physical address of the data link layer to complete the exchange or use the IP address of the network layer to complete the routing. In the vehicle network, the physical address of each no...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L61/50H04L67/12H04L101/627H04L101/645
CPCH04L67/12H04L61/50H04L2101/627H04L2101/645
Inventor 李芍冯亮张领辉李耀伟渠龙波安卫正高明庞凤颖许浩达陈京天
Owner CHINA NORTH VEHICLE RES INST
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