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Data acquisition device

A data acquisition and data technology, applied in the field of rail transit, can solve the problems of large number of data access requirements with many potential failure points and the inability of data acquisition devices to adapt, so as to achieve the effect of reducing potential failure points and saving layout space

Pending Publication Date: 2021-10-29
通号城市轨道交通技术有限公司
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Problems solved by technology

[0004] The invention provides a data acquisition device, which is used to solve the technical problem that the existing data acquisition device cannot meet the access requirements of a large amount of data and has many potential failure points

Method used

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Embodiment Construction

[0033] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0034] figure 1 The structural representation of the data acquisition device provided by the present invention, such as figure 1 As shown, the data acquisition device 100 includes:

[0035] FPGA unit 110, including MicroBlaze soft core 111 and AXI CAN IP core 112, is used to obtain CAN bus data; the quantity of AXI CAN IP core 112 is determined based on the channel quantity of CAN bus data;...

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Abstract

The invention provides a data acquisition device, and the device comprises an FPGA unit which comprises a MicroBlaze soft core and an AXI CAN IP core, used for obtaining CAN bus data, wherein the number of the AXI CAN IP cores is determined based on the number of channels of the CAN bus data; and a processor unit, which is connected with the FPGA unit and is used for processing the CAN bus data and determining a processing result of the CAN bus data. According to the data acquisition device provided by the invention, a hardware controller is replaced by a software structure, the access requirement of a large amount of data can be met, and meanwhile, the hardware controller is not added, so that the layout space of a hardware circuit is saved, and potential fault points of the hardware circuit are reduced.

Description

technical field [0001] The invention relates to the technical field of rail transit, in particular to a data acquisition device. Background technique [0002] In the rail transit system, real-time detection of the track and the surrounding environment is required, so a large number of detection devices need to be deployed. These detection devices generally use CAN as the communication interface, and are connected to various monitoring devices in the monitoring center through dedicated lines. This method greatly wastes line resources and is not easy to manage in a unified manner. [0003] In the prior art, in order to more conveniently collect data through the CAN bus, multiple CAN bus input interfaces are usually obtained through hardware expansion. For example, expand the CAN bus input interface by adding multiple MCP2515 controllers in the hardware circuit. The disadvantage of this method is that the input interface obtained through hardware expansion is extremely limite...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/38G06F13/42H04L12/40
CPCG06F13/385G06F13/4204H04L12/40006H04L2012/40215
Inventor 朱波刘龙曾重阳武昊刘鲁鹏
Owner 通号城市轨道交通技术有限公司
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