Solar energy-based PM2.5 detection system

Abstract

The invention relates to a solar energy-based PM2.5 detection system. A dust sensor and a temperature and humidity sensor are used for detecting the content of PM2.5 particulate matters and air temperature and humidity; the detected data is fed to a single-chip; the data is processed by the single-chip and is fed to a liquid crystal display screen to display the air temperature and humidity; after the single-chip processes and judges the data, the content level state of the PM2.5 particulate matters is fed to a full color LED lamp to be displayed; the single-chip data is connected to a PC by virtue of a chip serial port; and power of the system is supplied by a solar cell. The single-chip processes the content of the PM2.5 particulate matters and temperature and humidity data in the detected air in the case of solar power supply, and the PM2.5 numerical value, PM2.5 concentration change curve and temperature and humidity values are displayed on the display screen, so that the pollution degree of the current air quality is displayed and known by users by virtue of the full color LED lamp, and the single-chip is connected to the upper part of the PC by virtue of the chip serial port so as to conveniently check the data. Moreover, the system is low in cost, full in functions and convenient to carry and detect.

Description

technical field [0001] The invention relates to an air quality detection technology, in particular to a solar-based PM2.5 detection system. Background technique [0002] With the continuous development of my country's economic level, my country's demand for energy is increasing, and daily power generation, industrial production, and vehicle exhaust emissions are gradually increasing. Sulfur dioxide, nitrogen oxides, and inhalable particulate matter are the main components of smog. The first two are gaseous pollutants, and the last item, particulate matter, is the culprit that aggravates the pollution of haze weather. Smog is harmful to the human body after being inhaled into the human respiratory tract, causing respiratory diseases, inducing cardiovascular diseases, and causing very serious harm to people. The PM2.5 detection instruments on the market use rechargeable Li-ion lithium-ion batteries (7.4V / 1200mAh) with AC adapters (input: 100-240V, output 9V / 1.5A) or Ni-MH rec...

AI Technical Summary

Problems solved by technology

The PM2.5 detection instruments on the market use rechargeable Li-ion lithium-ion batteries (7.4V / 1200mAh) with AC adapters (input: 100-240V, output 9V / 1.5A) or Ni-MH rechargeable battery packs ( 1.2V × 4), with a 220VAC / 12VDC power adapter, the disadvantage of this power supply method is that the traditional battery life is limited, such as high-altitude traffic hub areas are difficult to maintain, lithium batteries need to be charged at intervals or in real time, often exposed to cloudy and sunny weather The battery is easily damaged by water and is difficult to maintain. Such frequent charging and discharging will bulge or even explode.

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