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sambaiga / UNETNiLM

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Code for paper: UNet-NILM: A Deep Neural Network for Multi-tasks Appliances state detection and power estimation in NILM

This repository contains PyTorch code for our paper:

Anthony Faustine, Lucas Pereira, Hafsa Bousbiat and Shridhar Kulkarni "UNet-NILM: A Deep Neural Network for Multi-tasks Appliances state detection and power estimation in NILM 5th International Workshop on Non-Intrusive Load Monitoring (NILM), (co-located with ACM BuildSys 2020 and jointly organized with the EU NILM Workshop)**

Short summary of NILM

Nonintrusive load monitoring (NILM), or nonintrusive appliance load monitoring (NIALM), is a process for analyzing changes in the voltage and current going into a house and deducing what appliances are used in the house as well as their individual energy consumption. Over the years, an enormous amount of research has been exploring Deep Neural Networks (DNN) particularly Convolutional Neural Networks (CNNs) and Recurrent Neural Networks (RNNs) for NILM problems. However, most of the existing DNNs models for NILM use a single-task learning approach in which a neural network is trained exclusively for each appliance. In practicle, multiple appliances are active in the house and it is important to predict which appliance is active at the given time and how much power the appliance is consuming.

We propose

Software requirements

We list our main python packages that are required. In principle our code should work with many different versions. Not all of these libraries are needed and the critical libraries that we use are:

Proposed method

Multitarget State Detection

Multitarget Quantile Regression

Seq2quantile state generation

UNet architecture

Dataset and procedure to load

The data can be loaded using the script provided in src/data/data_loader.py.

   from data_loader import load_data , spilit_refit_test
   load_data("../data/", data_type="training", data="ukdale", denoise=True)

Training models - experiment.py file

we have used pythorch lightning which provides high-level interface for PyTorch. There are variety of options that can be specified in the src/experiment.py, however the large majority is set to a sensible default value and doesn't need to be tuned to reproduce the results of our paper.

Results

Table 1 summarizes the outcomes of our experiments on UK-DALEdataset for both UNet-NILM and the CNN baseline.