DNQ2 Visibility Meter
The visibility meter utilizes the DNQ2 visibility meter developed by our company, which features domestically advanced technology and independent intellectual property rights. It is also equipped with a complementary visual imaging system. Based on user requirements, the appropriate network can be configured to form a complete network system, ensuring the operation of the equipment, data transmission, and other corresponding functionalities. The DNQ2 visibility meter itself is equipped with a standard RS232 data interface, which can be converted to Ethernet transmission through an RS232-RJ45 module.
Technical Features:
- Industrial-grade components for strong stability.
- Embedded design with low power consumption, capable of being powered by solar energy.
- Lens window treated with special anti-dust and anti-mold coatings.
- Light shielding and extinction structures in the optical path to avoid interference from vehicle headlights, sunlight, and other stray light.
- A/D conversion circuit with over 16-bit resolution for high measurement accuracy.
- Phase-locked technology used to extract weak signals, providing a considerable lower limit for the measurement range.
- Dedicated mathematical model algorithm for precise inversion of visibility values.
- High-precision clock module that retains time during power outages.
- Software control by a central station allows for remote calibration of device time, with feedback and verification of calibration information to ensure cumulative monthly time error is less than 15 seconds.
- Standard RS232/485 communication interfaces, with easy assembly and disassembly for seamless integration into various domestic and international automatic weather station products.
LGH-300 Urban Photography System
System Overview:
The urban photography system consists of two parts: the outdoor visibility timed photography system and the indoor security real-time video surveillance system.
The visibility timed photography system utilizes high-definition network cameras to take scheduled photos, resulting in high-quality images that reflect environmental visibility. The collected images can be applied to environmental research projects, air sampling surveys, and other related instances.
The indoor security real-time video surveillance system monitors the front-end monitoring substation, facilitating the query and retrieval of on-site video records while providing real-time monitoring of the operational status of air quality monitoring equipment.
System Features:
Outdoor Environment Visibility Photography System Features:
- Photo resolution of no less than 12 megapixels.
- Timed photography with adjustable time resolution, with a minimum interval of 1 minute, allowing for up to 48 scheduled photos per day (one every half hour).
- Multiple image processing technologies to capture clear images that accurately reflect actual environmental conditions.
- Temperature range: -30°C to 70°C, humidity range: 0% to 100%, suitable for harsh outdoor monitoring environments and capable of operating across a wide temperature range.
- Aluminum alloy or stainless steel protective housing with an automatic heating system, featuring anti-fog, anti-dew, anti-rain, and sun-shielding functionalities.
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Indoor Security Real-Time Video Surveillance System Features:
- Infrared network dome camera with a resolution of 1.3 megapixels.
- Day-night infrared camera with automatic switching, with an infrared distance of 10-30 meters.
- Indoor surveillance lenses capable of covering critical areas such as automated monitoring rooms.
- Main processor: TI DaVinci series high-performance DSP.
