Technical Architecture and Practical Application of Underwater Security Surveillance Systems
Underwater security surveillance systems serve as critical infrastructure for safeguarding marine assets, integrating multidisciplinary technologies and engineering practices. The system architecture consists of three layers:
- Perception Layer:
- Fiber Optic Hydrophones detect low-frequency signals (0.1Hz) with kilometer-level coverage.
- Underwater Pan-Tilt Cameras (1000m depth-rated) enable ±90° horizontal rotation and 60° upward tilt, equipped with LED cold-light sources to eliminate underwater light scattering.
- Transmission Layer:
- Short-range: Modbus protocol via RS485 bus supports 16-channel digital input/output for sensor data aggregation.
- Long-range: Subsea Gigabit Ethernet cables (600bar pressure resistance) combined with Weifute wireless microwave communication systems achieve 100Mbps data transmission within 30km.
- Application Layer:
- AI-Driven Analysis: TSINGSEE Qingxi platform integrates AI algorithms (e.g., human intrusion detection, water level monitoring) for real-time alerts with <0.5% false positive rate.
- Emergency Response: Yunzhou Intelligent’s lifesaving system triggers “Dolphin 3” rescue robots within 2 minutes of detecting drowning incidents, capable of towing 1-ton loads.
Deployment Highlights:
- Power Management: PoE (44-57V standard) combined with solar energy ensures ≤15W/node power consumption and 30-day endurance.
- Reliability Design: Modular hot-swappable components and 1:1 redundancy ensure system continuity, with core devices (e.g., fiber hydrophones) passing 160MPa pressure tests.
Case Studies:
- Zhuhai Hongwan Fishing Port’s “Smart Coast Defense” system reduces drowning response time to <3 minutes through 32 HD cameras and 6 rescue robots.
- Yibin Ferry Monitoring System achieves 70% accident reduction via driver fatigue detection and automatic violation