Alternating-current voltage frequency detection method, device, equipment and medium

A technology of AC voltage and detection method, applied in the field of information, can solve the problems of high cost, limited sampling range, low accuracy, etc., and achieve the effect of improving accuracy, reducing cost, and high portability

Pending Publication Date: 2020-05-19
SHENZHEN KEXIN COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The embodiment of the present invention provides a detection method, device, equipment and medium of AC voltage frequency, so as to solve the problems of limited sampling range, low accuracy and high cost when sampling AC voltage frequency in the prior art

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  • Alternating-current voltage frequency detection method, device, equipment and medium
  • Alternating-current voltage frequency detection method, device, equipment and medium
  • Alternating-current voltage frequency detection method, device, equipment and medium

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Embodiment Construction

[0040] 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 some of the embodiments of the present invention, but not all of them. 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.

[0041] The method for detecting the AC voltage frequency provided by this embodiment will be described in detail below. The purpose of the detection method of AC voltage frequency provided by the embodiment of the present invention is to overcome the problems of limited sampling range, low accuracy and high cost in the detection of AC voltage frequency by using an AC voltage frequency detection circuit in the prior art. Realize the detection of AC volt...

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Abstract

The invention discloses an AC voltage frequency detection method. The method comprises steps of setting a system clock and a sampling clock; receiving a to-be-measured AC voltage, and triggering sampling interruption according to waveform change of the to-be-measured AC voltage to obtain a sampling period count value between the two sampling interruptions; according to a sampling period count value and a sampling clock, obtaining the period and the frequency of the AC voltage to be measured. The method is advantaged in that problems of limited sampling range, low accuracy and high cost when the AC voltage frequency is sampled in the prior art are solved.

Description

technical field [0001] The present invention relates to the field of information technology, in particular to a detection method, device, equipment and medium of AC voltage frequency. Background technique [0002] In the existing AC voltage frequency sampling circuit, the size of the control chip is large. For example, the 12C5A60S2 chip has a package size of 2060 mil in length and 0.6 mil in width; the control chip has many pins, up to 40, which is easy to cause waste of resources and increase costs. ; and the control chip has a certain limitation on the sampling range of the AC voltage frequency, so it is difficult to guarantee the accuracy of the AC voltage frequency obtained by sampling. [0003] Therefore, it is an urgent technical problem for those skilled in the art to find a method to solve the problems of limited sampling range, low accuracy and high cost when sampling the frequency of AC voltage in the prior art. Contents of the invention [0004] The embodiment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R23/10
CPCG01R23/10
Inventor 陈登志巴黎谭恩赞范杰
Owner SHENZHEN KEXIN COMM TECH
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