Air pollution index detection display system based on gas sensor

Abstract

The invention discloses an air pollution index detection display system based on a gas sensor, and relates to the technical field of biology. The system comprises a housing, an air inlet, an air outlet, an air pump, a controller, sensor modules, and a displayer, wherein the air inlet and the air outlet are arranged at two sides of the housing, respectively; the air pump and the controller are arranged in the housing; the sensor module is arranged between the air inlet and the air outlet; the sensor modules comprise a sulfur dioxide sensor, a nitrogen oxide sensor, and a particulate matter sensor, the measurement ranges of which are 0-2000ppm, 0-2000ppm, and 0-1500ppm, respectively; and the displayer is arranged on the surface of the housing and is in electrical connection with the controller. The system is high in measurement accuracy, large in measurement range and small in size, is convenient to use, and is suitable for real-time environmental data detection in a plurality of places.

Description

technical field [0001] The invention relates to the field of biotechnology, in particular to an air pollution index detection and display system based on a gas sensor. Background technique [0002] With the rapid development of my country's economy, air pollution is quite serious. According to statistics, the total annual emission of sulfur dioxide in the country reaches 33.7 million tons, the total amount of smoke and dust emitted by coal burning in the country is 14.78 million tons, and the national nitrogen oxides, carbon monoxide and hydrocarbons The total emissions were 26 million tons. These pollutants have threatened the health of more than 300 million urban population in the country by air pollution. Smoke and fine particles in the air cause 50,000 premature deaths every year, and 400,000 people are infected with chronic bronchitis. It is particularly important to monitor and control air pollution. In terms of air pollution index monitoring, traditional air pollution...

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Problems solved by technology

These pollutants threaten the health of more than 300 million urban population across the country by air pollution. Smoke and fine particles in the air cause 50,000 premature deaths every year, and 400,000 people are infected with chronic bronchitis. It is particularly important to monitor and control air pollution. In terms of air pollution index monitoring, traditional air pollution index monitoring instruments cannot meet the real-time display of pollution indicators due to their complex structure and long measurement cycle. CN 200510132839.1 discloses a multi-parameter air quality rapid measuring instrument, which includes a casing, a colorimetric cell fixing ring, a bubble absorbing tube, a bubble absorbing tube bracket, an absorbing colorimetric tube, an air inlet, an air outlet, and a machine Pipeline gas flow regulating valve, liquid crystal display module, flow meter, multiple buttons, power switch on the outer surface of the casing, gas sampling pump, colorimetric cell, colorimetric bottle, light source / monochromator, photoelectric Detector, microprocessor and related circuit system, the invention can quickly collect and measure formaldehyde, ammonia, sulfur dioxide, nitrogen dioxide, ozone, benzene, toluene, ethylbenzene, xylene, styrene, carbon monoxide, carbon dioxide, total Volatile organic compounds (TVOC), inhalable particles PM10, nitrobenzene, and toxic and harmful gases in the air in the production workshops of factories and mines and their workplaces, but this kind of equipment is bulky, heavy, inconvenient to use, and the measurement accuracy not tall

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