Many users opt to install their motion-triggered cameras outdoors for enhanced security. There are two primary types of outdoor motion sensor cameras: software-based motion sensor cameras and PIR (Passive Infrared) sensor-based ones. Here’s a breakdown of how each type works:
Software-Based Motion Detection
Software-based motion detection cameras identify motion by comparing pixel changes between successive frames. When a human or animal moves across the camera’s field of view, the changing pixels are analyzed, triggering motion alerts. These cameras, often traditional IP cameras, can continuously record or switch to motion detection mode with pre-recording (3-5 seconds) and video delay settings to capture entire events.
Common Types:
- PoE (Power over Ethernet) Cameras
- Wireless Cameras
PIR Sensor-Based Motion Detection
PIR sensor-based motion cameras detect motion by sensing infrared body heat. When a warm body, like a person or an animal, passes by, the camera detects the rapid change in infrared energy and triggers an alert. These cameras are typically battery-powered IP cameras that wake up and start recording in less than a second when motion is detected. This allows you to monitor important events such as package deliveries or potential break-ins, even when you’re not present.
- Battery-operated, wire-free cameras
- Immediate wake-up and recording
- Long PIR detection range
Summary Table for Quick Understanding
| Type | How does it work | Motion activated CCTV Types* |
| Software motion sensor | Comparing images | PoE cameras, wireless cameras |
| PIR motion sensor | Comparing infrared heat | Battery operated, wire-free cameras |
Additional Note
It’s worth noting that outdoor motion-activated cameras can work without WiFi. The camera will still record and save motion events to an inserted SD card, enabling you to review the recordings on a PC without a WiFi connection.
By choosing the right motion-activated camera for your needs, you can ensure that your property is well-monitored and secure, day and night.
Read also: Outdoor Motion Activated Camera: How It Works and Why You Need One