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Data collecting card

A technology of data acquisition card and acquisition circuit, applied in the field of data acquisition card

Pending Publication Date: 2019-03-08
中电智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the commonly used PLC still has many deficiencies in processing speed and system stability.

Method used

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Embodiment Construction

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0036] It should be noted that like numerals ...

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Abstract

The embodiment of the invention provides a data collecting card. The data collecting card comprises a system side module composed of a microcontroller and an FPGA, a site side module composed of an analog signal processing module and a digital signal processing module and an optical coupled isolator. The FPGA is connected with the controller through a parallel port, the analog signal processing module and the microprocessor are connected with the optical coupled isolator through an SPI bus, and the digital signal processing module is connected with the FPGA through the optical coupled isolator. By adopting a combination of the microprocessor and the FPGA, a digital signal and an analog signal are respectively analyzed, and the system task processing speed is increased. The optical coupledisolator is connected with the system side module and the site side module to achieve electric isolation, and the system capacity of resisting disturbance is improved.

Description

technical field [0001] The invention relates to the technical field of industrial process control, in particular to a data acquisition card. Background technique [0002] In the field of industrial process control technology, sometimes it is necessary to process multiple on-site input and output signals (including digital signals and analog signals), and at the same time, the installation space of the controller is limited, and the small PLC (ProgrammableLogic Controller, programmable logic control device) satisfies this need. The small PLC adopts an integral structure with a relatively small volume and can handle multiple and various types of on-site signals. But the commonly used PLC still has many deficiencies in processing speed and system stability. Contents of the invention [0003] In view of this, the purpose of the embodiments of the present invention is to provide a data acquisition card to solve the above problems. [0004] An embodiment of the present applic...

Claims

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Application Information

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IPC IPC(8): G05B19/042
CPCG05B19/0421G05B2219/2609
Inventor 赵德政刘骏黄兵刘云龙姚旺君邢计元纪宇潇原崇蛟
Owner 中电智能科技有限公司
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