AC heavy-current low-frequency switch signal acquisition method based on micro controller unit (MCU)

A switching signal and micro-controller technology, applied in the direction of program control, computer control, general control system, etc., can solve the problems of high cost, complex hardware circuit, slow response speed, etc., achieve low cost, simple software algorithm, hardware The effect of fewer circuits

Inactive Publication Date: 2019-08-20
广东拓联科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantages of these two schemes are also very obvious: the first two methods require complex hardware circuits and high cost; secondly, the second scheme is rectified into a DC signal and then processed, and the response speed is very slow (usually the cycle needs more than 5s of the switching signal to complete the process). be identified and collected), can only be applied in very slow occasions

Method used

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  • AC heavy-current low-frequency switch signal acquisition method based on micro controller unit (MCU)
  • AC heavy-current low-frequency switch signal acquisition method based on micro controller unit (MCU)
  • AC heavy-current low-frequency switch signal acquisition method based on micro controller unit (MCU)

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[0029] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0030] Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless expressly stated otherwise, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0031] In describing the present invention, it is to be understood that the terms "one end", "the other end", "outer side", "upper", "inner side", "horizontal", "coaxial", "central", "end ", "length", "outer end" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the d...

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Abstract

The invention discloses an AC heavy-current low-frequency switch signal acquisition method based on micro controller unit (MCU), which comprises hardware circuit and software algorithm processing. Thehardware circuit comprises a current limiting resistor R1, a pull-up resistor R2, a diode D1, an optocoupler U1, a filter capacitor C1 and a micro controller unit (MCU). The invention provides an ACheavy-current switch signal acquisition method. The method is realized by combination of the hardware circuit and the software algorithm. The hardware circuits are few, the cost is low, the software algorithm is simple, and the realization is easy. The hardware adopts the optocoupler for isolation, the anti-interference ability is strong, the acquisition is reliable and stable, the application iswide, and the method can be applied to a data acquisition system in the industry and a data access part in an MES system.

Description

technical field [0001] The invention relates to the field of data collection in the industrial control industry, in particular to a microcontroller-based method for collecting AC high-voltage low-frequency switching signal. Background technique [0002] At present, with the introduction of concepts such as Industry 4.0 and Made in China 2025, the manufacturing industry has an increasing demand for automation and intelligent production models. Data acquisition systems play a pivotal role as the foundation and core subsystem of intelligent manufacturing. Among them, the data acquisition system also includes the acquisition of AC switching signals, especially the switching signals of AC strong current. At present, it is widely used in both MES systems and equipment signal data acquisition in factories. [0003] The current AC strong current (generally greater than or equal to 110V) switching signal generally cannot be collected directly, and it needs to be converted into a weak...

Claims

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Application Information

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IPC IPC(8): G05B19/042
CPCG05B19/0423G05B2219/25257
Inventor 夏卫忠欧阳佳伟
Owner 广东拓联科技有限公司
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