A Waveform Signal Adaptive Counting Method

Abstract

The present invention discloses a waveform signal adaptive counting method. The method includes the following steps that: frequency division processing is performed on waveform input signals, so thatthe high levels or low levels of obtained new signals are the entire period of the original signals; the high levels which are obtained after the frequency division processing is performed are countedthrough using clock signals; the difference value of counts is calculated; the absolute value of the difference value is compared with the threshold lambda of the difference value; normal data are output, and abnormal data are subjected to addition operation so that a normal value can be outputted; and a total count is finally obtained. According to the waveform signal adaptive counting method ofthe invention, the frequency division processing is performed on the waveform input signals; the high levels which are obtained after the frequency division processing is performed are counted through using the clock signals; the counts are grouped; whether the counts belong to normal data is judged according to different groups; desired data are outputted, namely, the adaptive counting result ofthe waveform signals is obtained; and therefore, the accuracy of signal period calculation is effectively improved.

Description

technical field [0001] The invention relates to the technical field of special signal testing and detection, in particular to an adaptive counting method for waveform signals. Background technique [0002] In areas with special requirements such as geological exploration and general testing, digital electronic counters have important application value. [0003] The website of the China Intellectual Property Office has announced a digital electronic counter (application number: 201110107653.6), including a CPU, a display module, a signal acquisition module, an alarm module, a real-time clock data storage module, a keyboard, and a power supply module. Display module, signal acquisition module, real-time clock data storage module, keyboard connection, described display module is connected with alarm module, described power module is respectively with CPU, display module, signal acquisition module, alarm module, real-time clock data storage module , keyboard connection. Compar...

AI Technical Summary

Problems solved by technology

[0004] Because the rising edge and falling edge of the low-frequency signal are slower, when the signal rises or falls to the middle level of the high level or low level of the signal detection digital processor, it is judged that the level at this time is 1 or 0, resulting in counting errors

[0005] The existing technology mainly requires a large number of hardware detection systems to detect the rising edge and falling edge of the waveform, otherwise it will cause waveform frequency detection and counting errors

However, the introduction of these hardware will bring about a substantial increase in power consumption, cost, and design space, and it will also easily lead to life problems caused by level mismatch.

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