/Air-pollution-monitor

China, BeiHang, Feng Ru Cup

Primary LanguageC++MIT LicenseMIT

Air quality analyzer

Overview

Air quality analyzer is an electronic based portable device made in order to measure the air quality. This portable device can detect air quality at any place. Specially places where we cannot obtain the air quality data which is obtained using weather stations. Even though, the air quality is measured outdoors using weather stations, people don’t care about the air quality indoors. Most people think that staying indoors is very suitable when there is air pollution outside. But there is a number of harmful gases present even indoors. The air quality data obtained is sent to a website and then saved for analysis. Several gas sensors are used in this device to detect the different kinds of harmful gases present in the atmosphere. The main feature of this device is the cost effectiveness when compared with the other detectors currently available in the market.

ArduinoCode

Air_pollution_monitor.ino is the main part of this project. There are two main functions in our machine:

  • Real-time monitoring
  • Sending data to server

ExternalLib

This folder contains Libs that Air_pollution_monitor.ino needs. The folder includes are as follows:

  • dht.h
  • ESP8266.h
  • LiquidCrystal_I2C

WiFiLib

This folder contains our own library which is based on ESP8266.h. This Lib makes it much easier to transfer data by simply adjusting your own SSID, PASSWORD and URL.

Web

This folder contains codes on the server.

  • get_data.php receives data from Arduino, then make a new file contains different aspects of data. It also maintains a list.txt which contains data's file name.
  • airquility.html sends request to send_data.php, then show the latest air condition.
  • ShowData.sh shows all of the data the server got with the name of each field.
  • refreshlist.sh is used for refresh list.txt after you delete some data files.
  • airquality_scraper.py can automatically get data from a free API. Meanwhile, it creates a text file that is named after the city , the pulltant and the time the data is collected. For example, "博州_CO_9:00". Then, the data is automatically written in the file.

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