In recent years, China has faced increasing air pollution issues, with smog—comprising particulate matter such as PM2.5 and PM10—becoming a significant component of the pollutants. This has made the task of air pollution detection and control more challenging than ever. To address this, the government has deployed or upgraded ground-based monitoring equipment in most cities, establishing a dense network of national control points for ground-level pollution source monitoring.
However, it is evident that there remains a considerable gap between the predictions based on data from these ground stations and the actual environmental conditions. Moreover, management strategies like ground sprinkling, construction site coverage, traffic restrictions, industrial production limits, boiler upgrades, and desulfurization efforts have not yielded satisfactory results.
As the third generation of remote sensing technology, UAV (Unmanned Aerial Vehicle) remote sensing offers advantages such as three-dimensional monitoring, rapid response, wide coverage, and minimal topographic interference. It is considered a crucial direction for future atmospheric emergency identification and concentration monitoring.
Despite its potential, UAVs face limitations due to their payload capacity. High-precision sensors are essential for accurate atmospheric monitoring, but traditional sensors often lack the necessary size and weight flexibility. To overcome this challenge, Shenzhen Yunchuan IoT Technology Co., Ltd. has developed a compact, lightweight sensor load suitable for drones, enabling efficient air pollution monitoring and fixed pollutant detection.
The UAV gas detection system supports multiple drone manufacturers, including all DJI series. It allows for easy replacement of thousands of gas sensors, with automatic identification features. The device is designed to be waterproof, windproof, dustproof, and impact-resistant. It provides real-time display of monitoring data, generates trend curves, and enables access to historical data with both list and chart views.
The system also displays real-time values for latitude, longitude, altitude, aircraft status, temperature, humidity, PM1, PM2.5, PM10, and various gas concentrations. Its detection accuracy reaches the ppb level, and it can transmit data wirelessly to the ground or a server via GPRS.
This gas detection load is compatible with multi-rotor and fixed-wing drones. It detects gases such as PM2.5, PM10, NO2, SO2, CO, O3, and VOC. The sensor uses electrochemical and laser technologies, weighs 1000 grams, and measures 220 × 145 × 60 mm. It operates on a 12–24V power supply, works in temperatures ranging from -30°C to +60°C, and functions in humidity levels from 15% to 95% RH without condensation. The gas device has a lifespan of two years.
The system integrates with flight control software like Mission Planner to plan flight paths and analyze data. The ground receiving system, Green Ear, processes and uploads data to the cloud, supporting real-time and historical data analysis. It includes real-time data display, historical data query, and GPS synchronization for comprehensive monitoring.
The UAV gas detection system consists of drones, NE sensor gas detection modules, data transmission via GPRS, a ground station/server, and data processing software. It enables flexible, fast, and accurate detection of air quality and toxic gases, reaching an accuracy of 1PPB. The system simplifies operations and reduces costs, allowing users to select different sensors for various scenarios.
The communication protocol uses RS485 and TTL modes, with a serial port baud rate of 9600, no parity bit, 8 data bits, and 1 stop bit. Data registers include PM2.5, real-time gas values, and full-scale values for gas modules.
The application market for this technology spans environmental monitoring, industrial safety, urban planning, and disaster response, offering a versatile solution for real-time air quality assessment and emergency detection.
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Dongguan Zhonghe Electronics Co., Ltd. , https://www.zhonghesleeving.com