i-am-mandar/peak_detection

Goal is to detect peak in given signal(s) in directory \dataset with computation intelligence and not just signal processing. Here, we have used 1D CNN from Keras to achieve it.

peak_detection

Goal is to detect peak in given signal(s) in directory \dataset with computation intelligence and not just signal processing.

approach A

0. read from xlsx into dataframe

1. calculate fft and take complex conjugate to eleminate imaginary value

2. discarding any frequency below power 1.5 and calculate inverse fft

3. using hilbert transformation to calculate upper envelope

4. plot orignal noisy signal (code commented)

5. plot FFT of noisy and filtered signal (code commented)

6. plot filtered signal with upper envelope and peaks marked as 'x' (code commented)

7. save the real value of peaks

8. group the peaks in chunk of n_slice = 62

9. create a label as ((len(df.index),len(df.columns)//n_slice)) and mark the cell as 1 where the peak is present

10. create a 1D CNN network and put in the input with label

11. save the modeled CNN netowork for prediction

12. give test input and get peak

approach B

0. read test input into dataframe

1. using scipy.signal.find_peak() and get peak

compare results from approach A and B and display results in web based UI

0. Run app.py to get web based UI to upload sample file and get results

how to run the experiment

0. Run pip install -r requirement.txt and get all libs

1. Run python model_train.py so we have the trained model save

2. Run python app.py to get web based UI and upload sample input from \static\files and get comparision

results

0. input - \static\files\sample_input_001.xlsx

1. input - \static\files\sample_input_002.xlsx

Note: You can always run each file CNN_Model.py, model_train.py and model_predict.py for individual output