CN220964904U - CAN field bus acquisition card of XMC specification - Google Patents

Abstract

The utility model provides a CAN field bus acquisition card with XMC specification. The acquisition card integrates 4 CAN channels. The XMC standard is designed, and CAN be applied to all XMC interfaces and simultaneously support CAN signals of the front-end connector. The use scheme of the XMC standard acquisition card lacking the CAN field bus signal in the market is supplemented. The CAN field bus acquisition card of the XMC specification comprises: the device comprises a connector, a CAN transceiver, a power isolation module, a CAN controller, a complex programmable logic device, an XMC interface and a PMC interface.

Description

CAN field bus acquisition card of XMC specification

Technical Field

The utility model provides a solution of XMC specification for current and future field bus application, and can be applied to the fields of network simulation, measurement equipment, vehicle internal test and unmanned aerial vehicle test. The CAN bus used is a field bus, in particular to a CAN field bus acquisition card with XMC specification.

Background

Fieldbus, an industrial data bus that has been developed rapidly in recent years, mainly solves the problems of digital communication between intelligent instruments, controllers, field devices of actuators and information transfer between these Field control devices and advanced control systems in industrial fields. It is an industrial data bus, which is the bottom data communication network in the automation field.

The CAN bus technology is fully called as a Controller Area network bus technology, the upper limit of the communication wave holding rate of the Controller Area network bus is 1Mbps, the CAN bus protocol is authenticated by the international standardization organization, the technology is mature, the controlled chip is commercialized, and the Controller Area network bus technology is suitable for data communication between distributed measurement and control systems.

The fieldbus provides a solution for current and future network simulations, measurement equipment, vehicle internal testing, and drone testing. Therefore, the method has good application and research prospects.

Disclosure of Invention

In order to solve the current requirements of the related field, the utility model provides a CAN field bus acquisition card with XMC specification. The acquisition card integrates 4 CAN channels. The XMC standard is designed, and CAN be applied to all XMC interfaces and simultaneously support CAN signals of the front-end connector.

The CAN field bus acquisition card of the XMC specification comprises: the device comprises a connector, a CAN transceiver, a power isolation module, a CAN controller, a complex programmable logic device, an XMC interface and a PMC interface;

The connector is connected with the CAN transceiver and used for providing forward CAN signal acquisition for the CAN field bus acquisition card with the XMC specification;

The CAN transceiver is connected with the connector, the power isolation module, the CAN controller and the PMC interface, and is mainly used for transmitting CAN signals to the CAN controller and receiving data transmitted from the CAN controller;

The power isolation module is connected with the CAN transceiver and used for isolating an input power supply;

The CAN controller is connected with the complex programmable logic device and the CAN transceiver, and is used for receiving data sent by the complex programmable logic device, processing the data and transmitting the processed data to the CAN transceiver, receiving the data of the CAN transceiver and transmitting the data to the complex programmable logic device;

The complex programmable logic device is connected with the CAN controller and the XMC interface, realizes PCIe signal receiving and transmitting, and sends data to the CAN controller;

XMC interface, connect the complicated programmable logic device, realize PCIe signal and receive and dispatch;

The PMC interface is connected with the CAN transceiver and used for supporting the collection and power input of the CAN signal.

The CAN field bus acquisition card of the XMC specification comprises: 4 CAN channels are integrated, and each channel is independently configured as a CAN bus signal acquisition function; each channel independently supports 11bit and 29bitCAN identifiers, CAN2.0b protocol, CAN baud rate support upper limit of 1Mbps, 64Byte extended receive buffer function.

The beneficial effects of the utility model are as follows: the acquisition card with the XMC specification is used, and the use scheme of the acquisition card with the XMC specification lacking in CAN bus signals in the market is made up. And meanwhile, the on-board front-out connector is supported to collect CAN bus signals.

The technical scheme of the utility model is further described in detail through the drawings and the embodiments.

Drawings

FIG. 1 is a block diagram showing the structure of an XMC-format CAN field bus acquisition card according to the present utility model

Description of the embodiments

As shown in FIG. 1, the structural block diagram of the CAN field bus acquisition card with XMC specification is provided by the utility model. The CAN field bus acquisition card of the XMC specification comprises: the device comprises a connector 1, a CAN transceiver 2, a power isolation module 3, a CAN controller 4, a complex programmable logic device 5, an XMC interface 6 and a PMC interface 7;

The connector 1 is connected with the CAN transceiver 2 and used for providing forward CAN signal acquisition for the CAN field bus acquisition card with the XMC specification;

The CAN transceiver 2 is connected with the connector 1, the power isolation module 3, the CAN controller 4 and the PMC interface 7, and mainly realizes the transmission of CAN signals to the CAN controller 4 and the reception of data transmitted from the CAN controller 4;

the power isolation module 3 is connected with the CAN transceiver 2 and used for isolating an input power supply;

The CAN controller 4 is connected with the complex programmable logic device 5 and the CAN transceiver 2, and is used for receiving data sent by the complex programmable logic device 5, processing the data and transmitting the data to the CAN transceiver 2, receiving the data of the CAN transceiver 2 and transmitting the data to the complex programmable logic device 5;

The complex programmable logic device 5 is connected with the CAN controller 4 and the XMC interface 6, realizes PCIe signal receiving and transmitting, and sends data to the CAN controller 4;

the XMC interface 6 is connected with the complex programmable logic device 5 and is used for receiving and transmitting PCIe signals;

the PMC interface 7 is connected with the CAN transceiver 2 and supports the collection and power input of the CAN signal.

The CAN field bus acquisition card of the XMC specification comprises: 4 CAN channels are integrated, and each channel is independently configured as a CAN bus signal acquisition function; each channel independently supports 11bit and 29bitCAN identifiers, supports a CAN2.0B protocol, supports the upper limit of CAN baud rate to be 1Mbps and 64Byte extended receiving buffer functions;

The beneficial effects of the utility model are as follows: the acquisition card with the XMC specification is used, and the use scheme of the acquisition card with the XMC specification lacking in CAN field bus signals in the market is made up. And meanwhile, the on-board front-out connector is supported to collect CAN bus signals.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting it, and although the present utility model has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that: the technical scheme of the utility model can be modified or replaced by the same, and the modified technical scheme cannot deviate from the spirit and scope of the technical scheme of the utility model.

Claims (2)

1. The CAN field bus acquisition card of XMC specification is characterized in that:

The CAN field bus acquisition card of the XMC specification comprises: the device comprises a connector, a CAN transceiver, a power isolation module, a CAN controller, a complex programmable logic device, an XMC interface and a PMC interface;

The connector is connected with the CAN transceiver and used for providing forward CAN signal acquisition for the CAN field bus acquisition card with the XMC specification;

The CAN transceiver is connected with the connector, the power isolation module, the CAN controller and the PMC interface, and is mainly used for transmitting CAN signals to the CAN controller and receiving data transmitted from the CAN controller;

The power isolation module is connected with the CAN transceiver and used for isolating an input power supply;

The CAN controller is connected with the complex programmable logic device and the CAN transceiver, and is used for receiving data sent by the complex programmable logic device, processing the data and transmitting the processed data to the CAN transceiver, receiving the data of the CAN transceiver and transmitting the data to the complex programmable logic device;

The complex programmable logic device is connected with the CAN controller and the XMC interface, realizes PCIe signal receiving and transmitting, and sends data to the CAN controller;

XMC interface, connect the complicated programmable logic device, realize PCIe signal and receive and dispatch;

The PMC interface is connected with the CAN transceiver and used for supporting the collection and power input of the CAN signal.

2. The CAN fieldbus acquisition card of the XMC specification of claim 1 wherein:

The CAN field bus acquisition card of the XMC specification comprises: 4 CAN channels are integrated, and each channel is independently configured as a CAN bus signal acquisition function; each channel independently supports 11bit and 29bitCAN identifiers, CAN2.0b protocol, CAN baud rate support upper limit of 1Mbps, 64Byte extended receive buffer function.