Nowadays, the environmental situation is grim, the environmental supervision and law enforcement tasks are becoming more and more onerous, and the depth and difficulty are also increasing. The supervision model is relatively simple, and the traditional environmental protection law enforcement methods can no longer meet the needs of the current environmental supervision work.
The application of drones in the field of environmental protection can realize real-time surrounding environmental pollution emergencies, track illegal pollution sources and obtain evidence in time, and grasp the distribution of pollution sources, emission status and project construction from a macro perspective, providing a basis for environmental management.
Building an “air-ground”-integrated monitoring system is a major demand in the fields of ecology, environment, hydrology, agriculture, forestry, meteorology and other resources and environments under the new situation. UAV ecological environment monitoring plays an extremely important role in the integrated monitoring system. Role. The three-dimensional observation of surface space elements can be realized through UAV aerial remote sensing technology, and rich and diverse geospatial data can be obtained, which
can provide important first-hand data for scientific research and operational work in the field of resources and environment. The use of drones for environmental monitoring actually includes many things, such as real-time atmospheric detection and atmospheric sampling. The Aeronautical Remote Sensing Department of the Satellite Environment Application Center once stated that in daily monitoring, the ecological environment monitoring of 818 counties is the cooperation of drones and satellites to complete the work. UAVs can not only be used for routine monitoring, but also play an important role in emergency monitoring. He believes that UAV monitoring has high timeliness, and UAV monitoring can be covered at any time as long as it is needed, and the resolution is 0.1 About meters, higher resolution than satellite remote sensing. In the observation of air pollution in summer, the application of UAVs equipped with atmospheric gas detection sensors has been vigorously promoted. The scientific good .
According to the different heights of the flight, the UAV can be equipped with different automatic atmospheric monitoring equipment to monitor the atmosphere in the target area at different heights in the air, and to feed back air quality data or sample the air in real time, among which ozone, sulfur dioxide, and carbon monoxide can be monitored. , Particulate matter concentration pm2.5 concentration and other air environmental problems. For the atmospheric environment detection gas sensor applied to the drone , a gas sensor with high precision and strong anti-interference ability is required.
The British ALPHAsense’s B4 series gas sensor, which is represented by ISWEEK, has a good price/performance ratio. The fourth electrode of Alphasense’s B4 series electrochemical sensor is used as an auxiliary electrode to compensate the zero current , so that it has the characteristics of high signal level and low zero current. It also has advantages in terms of power consumption, and the resolution can be as low as less than 10 ppb, fast response, short response time, anti-interference, wide working range and other obvious advantages, it can be applied to fixed and portable equipment, urban/indoor air quality detection.
At the same time, ALPHAsense also released a new B4+ smart chip gas sensor. The chip is integrated into the sensor, which can realize specific parameters and more than 8KB of free memory, setting a new standard for plug-and-play sensors . It can be well applied in the gas detection system of UAV to realize effective, fast and automatic management.
Integrated Smart Technology (IST), industry standard size format
Built-in memory preloaded with key sensor data
Free memory for OEMs, distributors and end users
Provides zero, span and calibration data, digital signature
On-board temperature detection
For particle detection, alphasense also has corresponding PM2.5 to PM10 sensors OPC-N series and OPC-R series. The OPC-N3 Optical Particle Counter provides a high-accuracy, low-cost alternative to instrumentation for monitoring harmful particles in the air. Can detect and count PM1, PM2.5, PM10 size particles with a measurement capability up to 2,000 μg/m3; can measure particles (including pollen) with sizes from 0.35 μm to 40 μm, and classify them into 24 different sizes In the “box”.
