Gateway and method for carrying out data conversion on basis of CANopen protocol and Ethernet protocol

Abstract

The invention discloses a gateway and method for carrying out data conversion on the basis of a CANopen protocol and an Ethernet protocol. The gateway comprises a first controller and a second controller, wherein the first controller is connected with a first Ethernet interface; the second controller is connected with a second Ethernet interface; the first controller and the second controller share one power supply and a plurality of CAN interfaces; the first controller and the second controller are connected by a bus network and a hard wire; and the second controller is used for synchronouslyreceiving data in the process that the first controller carries out forwarding on the received data according to a conversion rule between the CANopen protocol and the Ethernet protocol, and replacing the work of the first controller and notifying that the first controller is in a monitoring state when monitoring that the first controller is abnormal. Therefore, in a mode of adopting the controller redundancy in the gateway, hardware cost is reduced, a space occupied by equipment is saved, the integration degree is high, and the gateway and the method are convenient to manage,

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a gateway and a method for data conversion based on the CANopen protocol and the Ethernet protocol. Background technique [0002] With the development of rail transit train network technology, CANopen protocol and Ethernet protocol are used more and more in rail transit train network technology, and there are more and more applications in equipment trains based on CANopen protocol. Among them, the master node in the CANopen protocol has the network management function, and the gateway is often selected as the master node of the network control in the rail transit train network. In order to ensure the reliability of the gateway function, it is necessary to carry out redundant design for the gateway equipment. [0003] In the related technology, two sets of equipment are selected to be mutually redundant, that is, two sets of power supplies, two sets of gateways, and the gat...

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Problems solved by technology

[0005] For this reason, the first purpose of the present invention is to propose a gateway for data conversion based on CANopen protocol and Ethernet protocol, which is used to solve the problem of high hardware cost, large space occupation and low integration degree caused by redundant design of existing gateway equipment and inconvenient management issues

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