I have a signal of a switch with ON/OFF situation. How can I get how many times it actuates by matlab, simulink, or script?

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shreyas chopade
shreyas chopade 2016-1-5
回答： Image Analyst 2016-1-5
When the value is not equal to previous value, the counter should be increased by 1. I want total count in a certain time period.

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Walter Roberson
Walter Roberson 2016-1-5
sum(diff(YourSignal) ~= 0)

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Image Analyst
Image Analyst 2016-1-5
Maybe something like this:
loopCounter = 0;
count = 0;
oldSwitchReading = -1;
stillCheckingSwitch = true;
while stillCheckingSwitch && loopCounter < 1000000
thisSwitchReading = % Some code to read your switch.....
if thisSwitchReading ~= oldSwitchReading
count = count + 1;
end
oldSwitchReading = thisSwitchReading; % New/current state is now the old state for the next iteration.
loopCounter = loopCounter + 1; % Increment fail-safe.
% Decide if we need to quit checking the switch
stillCheckingSwitch = % Code to determine when to quit.....
end

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