At present, my country is in a rapid period of urbanization and industrialization, and the ensuing environmental problems have become increasingly prominent. In recent years, smog has continuously "attacked" most cities in my country, making urban residents suffer from it. Therefore, it is urgent to monitor and control environmental problems. The environmental data collection of mobile platform provides great help for the acquisition of environmental basic data, which has the accuracy, reliability and timeliness. Mobile platform applications include UAV airborne systems and in-vehicle systems.

1. Introduction to UAV Airborne System

UAV environmental monitoring, first of all, the use of drones to fly to the target location for real-time monitoring, access to data;GPRSTransmission to, real-time transmission of data information; Finally, from the macro observation of the distribution of pollution sources, emissions and project construction, etc., to provide decision-making for environmental monitoring. The advantages of UAV application are wide range, high resolution, flexible monitoring and rich details.

UAV atmospheric monitoring system mainly includes unmanned aerial vehicles, gas detection sensors, data transmission/GPRSGround station/Server, data processing software, etc.

The detection methods of sensor components of the monitoring module are mainly electrochemical detection (measurementSO2、CO、NO2、O3equal regular gas), photoelectric ion detection (measurementVOCsetc.), laser scattering detection (measurementPM2.5、PM10etc.).

2. Vehicle-mounted environmental monitoring system

     Vehicle environmental monitoring system isBy installing equipment on urban social public resources (buses, taxis, private cars), no dead ends, omni-directional supervision, omni-directional linkage data can be realized, making supervision more accurate and intelligent. Through the particle sensor and gas sensor installed on the system, the vehicle environment monitoring system can monitor the environment timely and effectively, and the system has the advantages of stable data acquisition and high real-time performance.

3. Introduction of the sensor

shenzhen agent of the ukalphansenseSensors, specifically for the field of atmospheric monitoring introduced ambient air quality sensors, including toxic gas sensorsA4/B4series,VOCsDetection sensorPID-AHandPM2.5、PM10particle detectorOPCIt has been widely used in the field of atmospheric monitoring.

    Alphasense的B4The fourth electrode of the series of electrochemical sensors is used as an auxiliary electrode to compensate for the zero current, so that it has the characteristics of high signal level, low zero current, and the resolution can be as low as less10 ppb, Fast response, short response time, anti-interference, wide working range and other obvious advantages, can be applied to fixed and portable equipment, urban areas/Indoor air detection and mobile platform monitoring system, etc.

photoelectric ion sensorPID-AHcan measure(1ppb-40ppm)rangeVOC(volatile organic compounds) and some toxic gases. It has the advantages of fast response, high sensitivity and good stability. The sensor uses a bulb with special brightness and stability, which can reliably detect weak volatile and difficult to detect compounds over a long period of time.

      PID-AH

• linear dynamic range1PPBTo40ppm(isobutylene)

• 5Annual working life(Replaceable lamps and electrode stacks are not included)

• Power consumption:3.6VWhen100mW, power on200msTransient550mW

Alpha pioneered a series of optical particle sensors based on the principle of light scattering(OPCs), This series has been continuously developing, providing customers with the best quality and lower cost sensors on the market. At present, our products:OPC-N3andOPC-R2。

OPC-N3

• CountPM1,PM2.5 andPM10(PM4.25 optional)

• Measurement range from0.35μmTo40μm (including flowersPowder detection)

• Classify24Oneparticle size channel

• Dimensions= 75mm(Long)x63.5mm(High)x60mm(Wide)

OPC-R2

• CountPM1,PM2.5 andPM10(PM4.25 optional)

• Measurement range from0.30μmTo12.4μm (including flowersPowder detection)

• Classify16Oneparticle size channel

• Dimensions= 72mm(Long)x25.5mm(High)x21.5mm(Wide)