Communication switching device

Abstract

The embodiment of the invention discloses a communication switching device, the communication switching device is electrically connected between a CAN signal transceiver and a plurality of CAN networks, and the communication switching device comprises a CAN interface module, a change-over switch and a plurality of network interface modules in one-to-one correspondence with the plurality of CAN networks; the CAN interface module is electrically connected with the CAN signal transceiver in a pluggable manner; the CAN interface module is also electrically connected with each network interface module through a change-over switch. Each network interface module is also electrically connected with each CAN network in a pluggable manner; the change-over switch is used for controlling the CAN interface module to be connected with one network interface module. According to the technical scheme provided by the embodiment of the invention, the network switching device is arranged in the CAN network and the CAN transceiver, so that the switching requirement of the CAN network is met, and the accuracy of signal transmission between the CAN network and the transceiver is realized.

Description

technical field [0001] The embodiments of the present invention relate to the field of network communication, in particular to a communication switching device. Background technique [0002] The vigorous development of the automobile field has continuously increased the functional equipment in the vehicle. With the increase of intelligent driving functions of vehicles, the number of ECUs in vehicles has also increased dramatically. The communication between the ECU in the vehicle and the CAN network in the vehicle is a key part of the vehicle's driving process. [0003] In the prior art, for the way of switching between the CAN network and the vehicle ECU, the CAN network corresponding to the ECU can usually be found according to the CAN network in the vehicle and the wiring harness drawing corresponding to the vehicle ECU, but the increase in the number of ECUs makes the corresponding CAN network The network system is more complicated, and the switching between ECU and CA...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, for the way of switching between the CAN network and the vehicle ECU, the CAN network corresponding to the ECU can usually be found according to the CAN network in the vehicle and the wiring harness drawing corresponding to the vehicle ECU, but the increase in the number of ECUs makes the corresponding CAN network The network system is more complicated, and the switching between ECU and CAN network is cumbersome and error-prone. Often there will be an error in the communication between one ECU and two different CAN networks, making it impossible for the ECU to communicate with the corresponding CAN network smoothly.

Different CAN networks can be switched by puncturing the wire harness in the CAN network, but multiple punctures will cause damage to the wire harness, poor contact, and the entire CAN network communication collapses and cannot work normally.

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