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Application of Air Quality Sensor in Environmental Monitoring
With the development of the economy, the air quality is declining. The air in the haze weather contains a lot of pollutants and microorganisms, including the well-known PM2.5 (also known as 'fine particulate matter'); Nowadays, air pollution is a serious threat to human health. How to improve the pollution status and lifestyle has become a problem that people are very concerned about. The source of PM2.5 (fine particulate matter) PM2.5 refers to particulate matter with an aerodynamic equivalent diameter less than or equal to 2.5 microns, which can be suspended in the air for a long time , The higher its concentration in the air, the more serious the air pollution. PM2.5 is rich in a large number of toxic and harmful substances, and it stays in the atmosphere for a long time and has a long transportation distance. Therefore, it has a greater impact on human health and atmospheric environmental quality. The sources of PM2.5 are mainly natural sources and man-made sources. There are two sources, the latter is more harmful. Man-made sources include fixed sources and mobile sources. Stationary sources include a variety of fuel combustion sources, such as power generation, metallurgy, petroleum, chemistry, textile printing and dyeing, and other industrial processes, heating, and cooking. The flow source is mainly the exhaust gas emitted into the atmosphere when various vehicles use fuel during operation. Application of air quality sensor The air quality sensor can monitor PM2.5/PM10 in the environment. The air quality sensor RS-PM-N01-2 is an industrial-grade general-purpose particulate matter concentration transmitter. It adopts the principle of laser scattering measurement and is screened through the dual-frequency data acquisition technology to obtain the equivalent per unit volume. The number of particles of the particle size, and the scientific and unique algorithm to calculate the particle mass concentration of the equivalent particle size in the unit volume, and use the 485 interface to output data through the ModBus-RTU protocol. It can be used in outdoor weather stations, dust monitoring, libraries, archives, industrial plants and other places that require PM2.5 or PM10 concentration monitoring. This high-precision sensor can reach 1ug/m3, support PM2.5, PM10 simultaneous output, the equipment adopts advanced laser anti-attenuation technology, to ensure the long-term stability of the equipment 0-1000ug/m3 measurement range, Dual-frequency data acquisition and automatic calibration technology, the consistency can reach +10%. Upload data to the local monitoring platform The local monitoring platform automatically receives and stores monitoring data through the RS-485 line. The user can view real-time data on the host side, and also export, download, and print historical data; To prevent environmental pollution caused by industrial emissions, we can first remotely set the upper and lower limits of each element of the environment through the local monitoring platform. Once a certain factor is restricted, the system will manage it through platform alarms, SMS alarms, and email alarms. Send alarm information to the operator. In order to facilitate account management, the cloud platform also supports multi-level permission access. One account can add 8 administrators, so the platform can give alarm information to 8 individuals at the same time, which is conducive to improving the efficiency of emergency management. Two kinds of shells are available. Louver box type: anti-ultraviolet, anti-rain and snow, anti-aging, suitable for outdoor weather monitoring. Wall-mounted king-shaped shell type: IP65 protection grade, unique waterproof treatment, suitable for various industrial occasions. Fine particles mixed in the air can cause serious health problems for people. The World Health Organization (WHO) said: 'By improving air quality, it can effectively reduce stroke, heart disease and lung cancer. And acute and chronic respiratory diseases.' No matter how big the particle size is, there is a certain degree of harm to people, but the more serious impact is PM2.5. These tiny PM2.5 particles can easily enter the deep lungs and cause serious health problems, so daily We must be vigilant in life.
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