IoT and AI for Waste Collection Optimization
Module: Sustainable Tech | Difficulty: Premium
Fill Level Prediction
where is population density factor, is weather factor, and is noise.
Collection Efficiency
Comparison
| Sensor Type | Accuracy | Range | Battery Life | Cost |
|---|---|---|---|---|
| Ultrasonic | +/- 2cm | 0-4m | 3-5 years | $50-100 | |
| Infrared | +/- 1cm | 0-3m | 2-4 years | $80-150 | |
| Load cell | +/- 5% | Full range | 5+ years | $100-200 | |
| Camera (AI) | 95% | Visual | 1-2 years | $200-500 | |
Python Implementation
import numpy as np
class SmartWasteManager:
def __init__(self, n_bins):
self.n_bins = n_bins
self.fill_levels = np.zeros(n_bins)
def predict_fill_level(self, current, days_ahead, collection_day):
daily_fill_rate = np.random.uniform(0.05, 0.15, self.n_bins)
predicted = current + daily_fill_rate * days_ahead
return np.clip(predicted, 0, 1.0)
def optimize_collection_route(self, fill_levels, threshold=0.7, truck_capacity=20):
needs_collection = np.where(fill_levels > threshold)[0]
if len(needs_collection) == 0:
return []
route = [0]
remaining = list(needs_collection)
current_load = 0
while remaining:
last = route[-1]
nearest = min(remaining, key=lambda x: abs(x - last))
if current_load + fill_levels[nearest] * 10 <= truck_capacity:
route.append(nearest)
current_load += fill_levels[nearest] * 10
remaining.remove(nearest)
else:
break
route.append(0)
return route
def dynamic_pricing(self, fill_level, base_price=0.10):
if fill_level > 0.9:
return base_price * 0.5
elif fill_level < 0.3:
return base_price * 1.5
return base_price
Research Insight: IoT-based smart waste collection reduces truck routes by 30-40% and fuel consumption by 25-35%.