Frequency detection device and frequency detection method

A technology of frequency detection and frequency, which is applied in the field of frequency detection devices, can solve the problems of high cost and inability to monitor the frequency of power signals in real time, and achieve the effect of ensuring frequency

Active Publication Date: 2017-09-15
INSTITUTE FOR INFORMATION INDUSTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, such an approach is costly and cannot monitor the frequency of power signals in real time

Method used

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  • Frequency detection device and frequency detection method
  • Frequency detection device and frequency detection method
  • Frequency detection device and frequency detection method

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Embodiment Construction

[0015] The following will clearly illustrate the spirit of the present invention with the accompanying drawings and detailed descriptions. After any person with ordinary knowledge in the technical field understands the preferred embodiments of the present invention, he can change and modify it by the technology taught by the present invention. without departing from the spirit and scope of the present invention.

[0016] Regarding the "electrical connection" used herein, it can refer to two or more elements that are in direct physical or electrical contact with each other, or indirect physical or electrical contact with each other, and "electrical connection" can also refer to two or more elements. Multiple elements operate or act on each other.

[0017] The terms "first", "second", ... etc. used herein do not refer to a particular order or order, nor are they used to limit the present invention, but are only used to distinguish elements or operations described with the same t...

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Abstract

A frequency detection device and a frequency detection method are disclosed. The frequency detection device comprises a filter, a detecting module and a calculating module. The filter is used for receiving an input signal and filtering the input signal so as to generate a to-be-detected signal. The detecting module is used for detecting a plurality of wave peaks and a plurality of wave troughs of the to-be-detected signal by using a second order differentiator so as to generate a plurality of detecting signals. The detecting signals are respectively corresponding to the wave peaks and the wave troughs. The calculating module is used for receiving the detecting signals and calculating the frequency of the to-be-detected signal according to the detecting signals.

Description

technical field [0001] The invention relates to an electronic device. In particular, a frequency detection device and a frequency detection method. Background technique [0002] With the rapid development of science and technology, various types of electronic devices have been widely used in people's life. [0003] The power system is used to provide power signals to drive various electronic devices. The frequency of power signals is related to the safety of electricity use. When the frequency of the power signal is unstable, the electronic device receiving the power signal may be damaged or burnt out, thereby posing a safety risk. [0004] In the conventional technology, an analog-to-digital converter can be used to capture the power signal, and then a processor is used to perform post processing on the power signal to calculate the frequency of the power signal. However, such an approach is costly and cannot monitor the frequency of the power signal in real time. [0...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R23/02
Inventor 何宗宪
Owner INSTITUTE FOR INFORMATION INDUSTRY
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