Introduction
Greenhouses and indoor farms are controlled environments where automation can improve efficiency. PIR sensors contribute by detecting pests, tracking workers, and automating responses.
Applications in Greenhouses
Pest Detection
Detect larger animal pests like rodents, rabbits, or birds that enter the greenhouse. Trigger alarms or deterrents.
Worker Tracking
Track worker movements to optimize workflow and ensure safety.
Automated Operations
Turn on lights, irrigation, or ventilation based on worker presence.
Security
Detect unauthorized entry after hours.
Sensor Requirements for Agricultural Environments
Humidity Resistance
Greenhouses are humid; sensors must be protected with conformal coating or IP-rated enclosures (IP65+).
Temperature Range
Wide range, possibly with heaters for cold climates. Look for -20°C to +60°C or wider.
Animal Differentiation
Distinguish between small pests and workers. Machine learning algorithms can help.
Conclusion
PIR sensors add intelligence to greenhouse operations, improving pest control, worker efficiency, and security.