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Ethernet switching device, data processing device and vehicle

A network switching and data processing unit technology, applied in the field of Ethernet network switching, can solve the problems of complex system structure, data transmission delay, large hardware volume, etc., and achieve the effect of reducing hardware volume, simplifying structure, and improving data transmission efficiency

Pending Publication Date: 2022-05-13
CHINA AUTOMOTIVE INNOVATION CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing Ethernet architecture includes not only MAC, PHY, but also RJ45 interface and network cables, which makes the system complex and costly, and also causes delays in data transmission, and the hardware volume is relatively large

Method used

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  • Ethernet switching device, data processing device and vehicle
  • Ethernet switching device, data processing device and vehicle
  • Ethernet switching device, data processing device and vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] This embodiment provides an Ethernet switching device, such as figure 2 As shown, the Ethernet switching device includes a MAC unit, and the MAC unit is used to connect the data processing unit with the switch, thereby enabling the data processing unit to be connected to the network.

[0036] Specifically, the data processing unit sends data to and receives data from the Ethernet network through the Ethernet switching device. When the data processing unit sends data to the Ethernet, the MAC unit acquires the data to be sent by the data processing unit, and sends the data to be sent to the switch, so as to send the data to be sent to the Ethernet, when the data processing unit When receiving data from the Ethernet, the MAC unit receives the data sent by the switch, and sends the received data to the data processing unit, so that the data processing unit receives the data from the Ethernet.

[0037] The MAC unit includes a sending data converting module, an interface mo...

Embodiment 2

[0057] This embodiment provides a data processing device, the data processing device includes one or more data processing units, and also includes the Ethernet switching device as described in Embodiment 1 above, at least one of the data processing units switches through the Ethernet The device is connected to the switch.

[0058] Optionally, the data processing device includes a plurality of data processing units to improve data processing performance, wherein at least two data processing units are connected to a switch through the Ethernet switching device.

[0059] In a possible implementation manner, at least two data processing units in the data processing device perform data transmission through the Ethernet switching device, that is, in the same data processing device, at least one data processing unit passes the Ethernet The network switching device performs data transmission with another data processing unit. In this way, the Ethernet switching device is used to perf...

Embodiment 3

[0063] This embodiment provides a data processing system, the data processing system includes at least one data processing device as described in Embodiment 2, the data processing device includes one or more data processing units, at least one data processing unit in the data processing device The processing unit is connected to the switch through the Ethernet switching device.

[0064] In a possible implementation manner, the data processing system is connected to an Ethernet network through the Ethernet switching device, and performs data transmission with other data processing devices and / or data processing systems. In this way, it is realized that the data processing system performs data transmission through the Ethernet switching device, and the data transmission efficiency of the data processing system can be improved.

[0065] In a possible implementation manner, the data processing system includes at least two data processing devices as described in Embodiment 2. In t...

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Abstract

The invention discloses an Ethernet switching device, a data processing device and a vehicle, and the device comprises an MAC unit which is used for connecting a data processing unit with a switch; the MAC unit comprises a sending data conversion module, an interface module, a correction module and a receiving data conversion module; the sending data conversion module is used for obtaining a sending data signal according to the data to be sent; the interface module is used for sending the sending data signal to a switch and receiving a data signal sent by the switch to obtain a receiving data signal; the correction module is used for correcting the received data signal; and the received data conversion module is used for obtaining received data according to the corrected received data signal. According to the Ethernet switching device provided by the invention, a PHY (Physical Layer) is omitted, and the MAC unit is directly connected with the switch, so that data transmission from the MAC unit to the MAC unit is realized, data conversion processing in a data transmission process is reduced, and the data transmission efficiency can be improved.

Description

technical field [0001] The invention relates to the technical field of Ethernet switching, in particular to an Ethernet switching device, a data processing device and a vehicle. Background technique [0002] The Ethernet network port generally includes a MAC (Media Access Control, ie, a media access control sublayer protocol) and a PHY (Physical Layer, physical layer). Such as figure 1 As shown, in the prior art, the CPU is connected to the network through MAC and PHY, wherein the CPU is a computing unit, and the MAC of Ethernet belongs to the data link layer in the OSI model, and is used to define the location of the network, that is, the physical Address, the CPU provides the data to be sent and obtains the received data through the DMA (Direct Memory Access, direct memory access), the MAC obtains the data sent by the CPU from the DMA, and sends the received data to the DMA. PHY belongs to the lowest physical layer in the OSI model and is responsible for link establishme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L49/10H04Q1/02H04Q1/10
CPCH04L49/10H04Q1/028H04Q1/10
Inventor 秦民尚祚彦蔡丛
Owner CHINA AUTOMOTIVE INNOVATION CORP
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