Collect and label sensor data
Record accelerometer and gyroscope streams with timestamps and label true falls versus non-falls; include different users and positions to improve generalisation.
Detect falls from wearable sensors. Consider latency and false alarms.
Fall detection from wearables is a time-sensitive binary classification task using accelerometer/gyroscope telemetry. Key challenges include class imbalance, varying device position, false alarms, and meeting latency and battery constraints on-device.
Learning concept · Not a validated service
Fall detection from wearables is a time-sensitive binary classification task using accelerometer/gyroscope telemetry. Key challenges include class imbalance, varying device position, false alarms, and meeting latency and battery constraints on-device.
A proposed application: a wearable companion that raises an alert for suspected falls while allowing a human responder to confirm before emergency services are contacted. This project is a prototype idea and is not a certified medical or emergency product.
Record accelerometer and gyroscope streams with timestamps and label true falls versus non-falls; include different users and positions to improve generalisation.
Window the time series, compute features (e.g. magnitude, variance, orientation changes) and normalise using only training data statistics.
Fit and validate a compact classifier such as a shallow decision tree or small neural model, optimising F1 and latency for single-sample inference.
Measure single-sample and end-to-end latency on target hardware, and evaluate precision/recall trade-offs to control false alarms.
The supplied starter generates synthetic tabular classification data with sklearn.make_classification, fits a DecisionTreeClassifier, and measures the approximate per-sample prediction latency by repeatedly calling model.predict on a single row. It does not use wearable sensor files, time-series windows, or real telemetry preprocessing.
X, y = make_classification(n_samples=1000, n_features=12, n_informative=8, random_state=42)
model = DecisionTreeClassifier(max_depth=6, random_state=42)
model.fit(X, y)
sample = X[:1]
start = time.perf_counter()The starter uses synthetic IID tabular data, not accelerometer or gyroscope time-series from wearables. It omits windowing, feature extraction, class-imbalance handling, event buffering and any real-time input pipeline. Latency is estimated by repeated in-memory predict calls on scikit-learn, which does not reflect edge-device constraints, power use or I/O overhead.
A proposed extension: replace the synthetic data with a labelled wearable-telemetry dataset, add streaming windowing, tune the classifier for low latency and build a simple local alert API that requires human confirmation before escalation.
This is a potential application pathway, not a delivered product. The supplied starter does not implement this service or validate it with real users.
Networkers Home runs this topic inside its Network Engineering Course, with placement support and hands-on labs.