How Indoor Air Quality Monitoring Systems Work

With the promulgation and implementation of various environmental protection policies and regulations by the state, local governments at all levels pay more and more attention to environmental governance within their jurisdictions and increase investment in environmental monitoring and emergency monitoring. At the same time, under the influence of the new crown epidemic, the country and the people are paying more and more attention to the indoor air quality in public places, and improving the ventilation system and air purification in public places has become a big demand.

As an important instrument for monitoring indoor air quality, the indoor air quality monitor independently developed by Shanghai applies IoT technology to monitor indoor temperature and humidity, light particulate matter (PM2.5/PM10), carbon dioxide, VOC formaldehyde, noise and other environmental factors. Present environmental data in the form of monitoring terminals and multimedia, so that users can monitor and improve the indoor environment.


Monitoring Principle


The indoor air quality monitoring system is equipped with high-precision sensors, which can monitor parameters such as temperature and humidity, PM2.5, TVOC, formaldehyde, etc. Through the built-in microprocessor, sensor and internal curing operation program, the collection and calculation of the external ambient air components are automatically completed. , convert the pollutant concentration signal into visual data and display it on the multimedia screen.


System Composition


1. Terminal Device

The indoor air quality monitoring system integrates many relevant parameters of pollutants in the air, and the complexity of indoor pollution sources leads to insufficient parameters showing the degree of indoor air pollution. On the basis of monitoring PM2.5, PM10 and other particulates, the indoor air quality monitoring system also has monitoring parameters for formaldehyde, TVOC, CO2, CO, H2S, NH3 and other harmful substances to choose from, making the monitoring results more comprehensive.


2. Communication System

The prerequisite for online monitoring is the successful connection of device communication, and the real-time upload of data can be realized after the terminal device is integrated. The communication methods of the indoor air quality monitoring system are: Wi-Fi, Modbus, RJ45, RS-485, NB-IOT, etc. The diversification of communication methods allows air monitoring equipment manufacturers to provide more equipment that adapts to different environments to meet different customer needs.


3. Software System

In addition to the basic functions of data storage, display, data analysis, health reminder, automatic online control, etc., the software system of the indoor air quality monitoring system also has intelligent and online monitoring functions, and the software is complete and beautiful UI interface , the use of human-computer interaction makes the operation steps clear and logical, and improves the user experience.


4. Linkage Module

The indoor environment monitoring system supports intelligent expansion functions. In addition to displaying monitoring data through multimedia, it can also connect modules such as fresh air and air purification, and automatically turn on fresh air and other equipment through the setting of pollutant thresholds, so as to achieve intelligent improvement of indoor air quality. effect.

The development of economic level and the improvement of life taste have made more and more people pay attention to the health of their daily environment. In the era of epidemic prevention, the safety of indoor air quality is closely related to people’s health, and the indoor air quality monitoring system is more complete. essential.