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Multi-channel data acquisition system based on Modbus

A data acquisition system and acquisition circuit technology, applied in general control systems, control/regulation systems, instruments, etc., can solve problems such as temperature and voltage data errors, production accidents, and unstable operation of the acquisition system, and achieve real-time and reliability. Improve and ensure the effect of accuracy

Pending Publication Date: 2017-05-17
ANQING NORMAL UNIV
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  • Abstract
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Problems solved by technology

[0002] In the industrial field, the real-time and reliability of temperature and voltage acquisition are very important, but due to the unstable operation of the acquisition system, errors in temperature and voltage data occur, and serious production accidents are caused

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  • Multi-channel data acquisition system based on Modbus

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Embodiment Construction

[0011] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.

[0012] The embodiment of the present invention provides a multi-channel data acquisition system based on Modbus, which includes a first temperature acquisition circuit, a second temperature acquisition circuit, a third temperature acquisition circuit, a first voltage acquisition circuit, a second voltage acquisition circuit, a second Three voltage acquisition circuits, the first temperature acquisition circuit, the second temperature acquisition circuit, the third t...

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Abstract

The invention provides a multi-channel data acquisition system based on a Modbus. The system comprises a first temperature acquisition circuit, a second temperature acquisition circuit, a third temperature acquisition circuit, a first voltage acquisition circuit, a second voltage acquisition circuit and a third voltage acquisition circuit. The first temperature acquisition circuit, the second temperature acquisition circuit, the third temperature acquisition circuit, the first voltage acquisition circuit, the second voltage acquisition circuit and the third voltage acquisition circuit are connected with one six-channel analog signal selector, the six-channel analog signal selector is connected with an A / D converter which is connected with a single chip microcomputer master controller, and the single chip microcomputer master controller is connected with an upper computer. The instantaneity and reliability of temperature acquisition and voltage acquisition are obviously improved, the collected temperature data and voltage data do not generate errors in the transmission process, and the accuracy of the data is guaranteed.

Description

technical field [0001] The invention relates to the technical field of data acquisition, in particular to a Modbus-based multi-channel data acquisition system. Background technique [0002] In the industrial field, the real-time and reliability of temperature and voltage acquisition are very important, but the unstable operation of the acquisition system will cause errors in the temperature and voltage data, which will cause production accidents in serious cases. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides a multi-channel data acquisition system based on Modbus, which is characterized in that it comprises a first temperature acquisition circuit, a second temperature acquisition circuit, a third temperature acquisition circuit, a first voltage acquisition circuit, The second voltage acquisition circuit, the third voltage acquisition circuit, the first temperature acquisition circuit, the second temperatur...

Claims

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Application Information

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IPC IPC(8): G05B19/042
CPCG05B19/0423G05B2219/24215
Inventor 江伟金中朝
Owner ANQING NORMAL UNIV
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