Early warning system for air quality monitoring

Abstract

The invention relates to the technical field of Internet of Things and smart home, in particular to an early warning system for air quality monitoring, which comprises an air monitoring module, a quality display module, a health regulation module and an abnormal early warning module, and is characterized in that the air monitoring module is used for regularly monitoring pollutant parameters and temperature and humidity parameters in indoor air; the quality display module is used for calculating an air pollution index and determining an air pollution level; the display module is used for displaying the temperature and humidity parameter data, the air pollution level and the early warning information; the health adjustment module is used for calculating the health adjustment duration and controlling the purifier to be turned on or turned off; the pre-warning module is used for generating pre-warning detection signals; and the abnormity early warning module is used for generating an early warning signal when the latest air pollution index data is out of a preset pollution index early warning threshold value range, and is used for sending out an alarm sound, so that the air quality monitoring and air purification efficiency is improved, and the health and safety of a user are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of Internet of Things and smart home, and in particular to an early warning system for air quality monitoring. Background Art

[0002] With the acceleration of modern urbanization and the improvement of people's living standards, indoor environmental quality has attracted more and more attention. As an important part of indoor environmental quality, indoor air quality has a vital impact on people's health and quality of life. However, in the existing technology, the development of indoor air quality monitoring systems still faces many challenges and problems. In terms of data collection, existing monitoring systems usually use traditional sensor technology, which has certain limitations in accuracy and stability. Due to the wide variety of pollutants in indoor air and the large range of concentration changes, traditional sensors are often difficult to accurately and real-time monitor the changes of these pollutants. In terms of data processing and analysis, existing systems usually lack efficient and intelligent data processing algorithms. Although some systems can collect a large amount of monitoring data, due to the lack of effective data processing methods, these data are often difficult to be fully utilized. In terms of automatic control and early warning mechanisms, existing systems often lack intelligent control strategies. Although some systems can automatically adjust the operating status of equipment such as air purifiers according to monitoring results, the control strategy is relatively simple and lacks flexibility and adaptability. The warning mechanism of the existing system is also relatively lagging, unable to issue warning signals in a timely and accurate manner, and thus unable to effectively protect the health and safety of users. The existing indoor air quality monitoring system has certain problems and challenges in data collection, data processing and analysis, automatic control, and user experience. These problems limit the accuracy and practicality of the system, making it impossible for users to fully understand and grasp the indoor air quality status.

[0003] Therefore, an early warning system for air quality monitoring is proposed. Summary of the invention

[0004] The problem to be solved by the present invention is that the air quality monitoring efficiency of the current existing monitoring system is low. In terms of data processing and analysis, the existing system usually lacks efficient and intelligent data processing algorithms. At the same time, there is a lack of effective data processing means, and these data are often difficult to be fully utilized. The manual adjustment equipment is difficult to control the opening time, which easily leads to energy waste. In addition, the early warning mechanism is relatively lagging, and there is a problem that early warning signals cannot be issued in a timely and accurate manner.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] An early warning system for air quality monitoring includes an air monitoring module, a quality display module, a health adjustment module and an abnormal early warning module.

[0007] The air monitoring module is used to regularly monitor the pollutant parameters in the indoor air, and then transmit the monitored pollutant parameter data to the quality display module and the health adjustment module respectively; and is used to regularly monitor the temperature and humidity parameters in the indoor air, and then transmit the monitored temperature and humidity parameter data to the quality display module; and is used to monitor the latest pollutant parameters in the air when receiving the early warning detection signal, and then transmit the latest pollutant parameter data to the quality display module;

[0008] The quality display module is used to calculate the air pollution index according to the received pollutant parameter data and the preset limit threshold of the concentration of each pollutant after receiving the pollutant parameter data and the temperature and humidity parameter data, and then transmit the monitored air pollution index to the health adjustment module; and is used to determine the air pollution level according to the comparison of the calculated air pollution index and the preset air pollution index level division threshold; and is used to graphically display the temperature and humidity parameter data and the air pollution level; and is used to calculate the latest air pollution index after receiving the latest pollutant parameter data, and then transmit the latest air pollution index data to the abnormal warning module; the quality display module is used to display the warning information after receiving the warning signal;

[0009] The health adjustment module is used to calculate the health adjustment duration according to the received pollutant parameter data and the air pollution index, the preset safety value of each pollutant, the preset indoor space volume, and the preset purifier purification rate after receiving the pollutant parameter data and the air pollution index; and to control the purifier to be turned on or off according to the calculated health adjustment duration; and to generate an early warning detection signal when the air purifier is turned off, and then transmit the early warning detection signal to the quality display module;

[0010] The abnormal warning module is used to compare the latest air pollution index data with the preset pollution index warning threshold range after receiving the latest air pollution index data; and to generate a warning signal when the latest air pollution index data is outside the preset pollution index warning threshold range, and then transmit the warning signal to the quality display module; and to sound an alarm when the warning signal is generated.

[0011] Preferably, the air monitoring module includes a pollution monitoring unit, a temperature and humidity monitoring unit and a Zigbee module.

[0012] The pollution monitoring unit is used to regularly monitor the concentration of carbon dioxide, carbon monoxide, and PM in indoor air. 2.5 concentration, formaldehyde concentration and TVOC concentration, and then monitor the carbon dioxide concentration data, carbon monoxide concentration data, PM 2.5The concentration data, formaldehyde concentration data and TVOC concentration data are transmitted to the Zigbee module; and are used to monitor the carbon dioxide concentration, carbon monoxide concentration, PM concentration in the indoor air when receiving the early warning detection signal. 2.5 concentration, formaldehyde concentration and TVOC concentration, and then monitor the latest carbon dioxide concentration data, carbon monoxide concentration data, PM 2.5 Concentration data, formaldehyde concentration data and TVOC concentration data are transmitted to the Zigbee module;

[0013] The temperature and humidity monitoring unit is used to regularly monitor the indoor temperature and humidity, and then transmit the monitored temperature and humidity data to the Zigbee module;

[0014] The Zigbee module is used to receive carbon dioxide concentration data, carbon monoxide concentration data, PM 2.5 concentration data, formaldehyde concentration data, TVOC concentration data, temperature data and humidity data, and then the carbon dioxide concentration data, carbon monoxide concentration data, PM 2.5 concentration data, formaldehyde concentration data, TVOC concentration data, temperature data and humidity data are transmitted to the quality display module and the health adjustment module respectively; and are used to receive the latest carbon dioxide concentration data, carbon monoxide concentration data, PM 2.5 The concentration data, formaldehyde concentration data and TVOC concentration data are transmitted to the quality display module.

[0015] Preferably, the pollution monitoring unit is a plurality of sensors, namely a carbon dioxide sensor, a carbon monoxide sensor, a PM 2.5 Sensor, formaldehyde sensor and TVOC sensor.

[0016] Preferably, the quality display module includes an air pollution index calculation unit, a pollution level classification unit, a 5G communication module and a mobile display unit;

[0017] The air pollution index calculation unit is used to receive carbon dioxide concentration data, carbon monoxide concentration data, PM 2.5 concentration data, formaldehyde concentration data, TVOC concentration data, according to the carbon dioxide concentration data, carbon monoxide concentration data, PM 2.5 The air pollution index is calculated based on the concentration data, formaldehyde concentration data, TVOC concentration data and the preset limit threshold of each pollutant concentration, and then the monitored air pollution index is transmitted to the pollution level classification unit and the health adjustment module respectively; and is used to receive the latest carbon dioxide concentration data, carbon monoxide concentration data, PM 2.5 concentration data, formaldehyde concentration data and TVOC concentration data, and then according to the latest carbon dioxide concentration data, carbon monoxide concentration data, PM 2.5The latest air pollution index is calculated based on the limit threshold of each pollutant concentration of the concentration data, formaldehyde concentration data and TVOC concentration data, and then the latest air pollution index is transmitted to the abnormal warning module;

[0018] The pollution level classification unit is used to compare the calculated air pollution index with the preset air pollution index level classification threshold after receiving the air pollution index, determine the air pollution level, and then transmit the air pollution level to the 5G communication module; and is used to transmit the warning signal to the 5G communication module after receiving the warning signal;

[0019] The 5G communication module is used to graphically display temperature data, humidity data and air pollution level data after receiving the temperature data, humidity data and air pollution level data; and is used to display warning information after receiving a warning signal.

[0020] Preferably, the calculation formula of the air pollution index is:

[0021]

[0022] Where API is the air pollution index, α is the environmental impact factor, α∈(0,1), n ​​is the number of pollutants, i is the pollutant number, i∈(0,5), λ i is the pollution index of the i-th pollutant, k i is the weight coefficient of the i-th pollutant, and c i is the concentration data of the i-th pollutant, c CO It is the safe value of carbon monoxide concentration, and its unit is ppm. is the carbon dioxide concentration data, its unit is mg / m 3 , It's PM 2.5 Concentration data, the unit is μg / m 3 , c HCHO It is the formaldehyde concentration data, and its unit is mg / m 3 , c TVOC It is the TVOC concentration data, and its unit is mg / m 3 ,s i is the limit threshold of the i-th pollutant, s CO is the carbon monoxide concentration limit threshold, its unit is ppm, is the carbon dioxide concentration limit threshold, its unit is mg / m 3 , It's PM 2.5 Concentration limit threshold, its unit is μg / m 3 ,s HCHOis the formaldehyde concentration limit threshold, its unit is mg / m 3 ,s TVOC is the TVOC concentration limit threshold, its unit is mg / m 3 .

[0023] Preferably, the calculated air pollution index is compared with a preset air pollution index level classification threshold to determine the air pollution level in the following manner:

[0024]

[0025] Among them, APL is the air pollution level, API is the air pollution index, and when the output result is Ⅰ, it indicates light pollution, when the output result is Ⅱ, it indicates moderate pollution, and when the output result is Ⅲ, it indicates heavy pollution.

[0026] Preferably, the health adjustment module includes a duration calculation unit, a timing unit and an MCU control unit;

[0027] The duration calculation unit is used to receive carbon dioxide concentration data, carbon monoxide concentration data, PM 2.5 After receiving the carbon dioxide concentration data, carbon monoxide concentration data, PM 2.5 The health adjustment time is calculated based on the concentration data, formaldehyde concentration data, TVOC concentration data, air pollution index, preset safety value of each pollutant, preset indoor space volume, and preset purification rate of the purifier, and then the calculated health adjustment time data is transmitted to the timing unit;

[0028] The timing unit is used to start timing and generate a purification start signal when receiving the health adjustment duration data, and then transmit the purification start signal data to the MCU control unit; and is used to generate a purification shutdown signal when the timing duration reaches the health adjustment duration, and then transmit the purification shutdown signal data to the MCU control unit;

[0029] The MCU control unit is used to control the purifier to turn on after receiving the purification start signal data; and to control the purifier to turn off after receiving the purification stop signal data; and to generate an early warning detection signal when controlling the purifier to turn off, and then transmit the early warning detection signal to the 5G communication module.

[0030] Preferably, the calculation formula for the health adjustment time is:

[0031]

[0032] T health =max(T 1 , T 2, ..., T i );

[0033] Among them, T i Calculate the time required for each pollutant to reach a safe level, the unit is h, β is the purification factor, V is the preset purification rate of the purifier, c i is the concentration data of the i-th pollutant, c CO It is the safe value of carbon monoxide concentration, and its unit is ppm. is the carbon dioxide concentration data, its unit is mg / m 3 , It's PM 2.5 Concentration data, the unit is μg / m 3 , c HCHO It is the formaldehyde concentration data, and its unit is mg / m 3 , c TVOC is the TVOC concentration data, the unit is mg / m3, is the safety value of the i-th pollutant, It is the safe value of carbon monoxide concentration, and its unit is ppm. is the safe value of carbon dioxide concentration, its unit is mg / m 3 , It's PM 2.5 Concentration safety value, the unit is μg / m

[0034] 3. It is the safe value of formaldehyde concentration, and its unit is mg / m 3 , is the TVOC concentration safety value, its unit is mg / m3, i is the pollutant number, i∈(0,5), API is the air pollution index, T health is the health adjustment duration, and its unit is h.

[0035] Preferably, the abnormal warning module includes an abnormal comparison unit and an early warning module.

[0036] The abnormal comparison unit is used to compare the latest air pollution index data with the preset pollution index warning threshold range after receiving the latest air pollution index data; and is used to generate a warning signal when the latest air pollution index data is outside the preset pollution index warning threshold range, and then transmit the warning signal to the 5G communication module and the warning module respectively;

[0037] The early warning module is used to sound an alarm after receiving an early warning signal.

[0038] Preferably, the latest air pollution index data is compared with the preset pollution index warning threshold range:

[0039]

[0040] Among them, API new It is the latest air pollution index. When Result = true, it means the air environment is normal. When Result = false, it means the air environment is abnormal.

[0041] Beneficial effects of the present invention:

[0042] 1. The air monitoring module can ensure the reliability of monitoring data through the high precision and stability of the sensor, while the scheduled monitoring enables the system to quickly capture changes in air quality and provide users with timely and accurate information.

[0043] 2. The quality display module provides users with a more scientific and accurate air quality assessment by calculating the air pollution index and pollution level. The graphical display function also makes the data more intuitive and easy to understand, making it easier for users to understand and apply.

[0044] 3. The health adjustment module can automatically calculate the health adjustment duration based on the monitoring results and control the opening and closing of the equipment. This not only avoids the tediousness and uncertainty of manual adjustment, but also effectively reduces energy waste and improves the operating efficiency of the equipment.

[0045] 4. The abnormal warning module determines whether the air environment is abnormal by comparing the air pollution index after purification, which improves the accuracy of the warning. The warning information is displayed through the warning device and mobile terminal to ensure the safety of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments are briefly introduced below. The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0047] In the attached picture:

[0048] Figure 1 It is a schematic diagram of the system module composition of the present invention. DETAILED DESCRIPTION

[0049] The concept and technical effects of the present invention will be clearly and completely described below in conjunction with embodiments to fully understand the purpose, features and effects of the present invention.

[0050] See also Figure 1 ,

[0051] An early warning system for air quality monitoring includes an air monitoring module, a quality display module, a health adjustment module and an abnormal early warning module.

[0052] The air monitoring module is used to regularly monitor the pollutant parameters in the indoor air, and then transmit the monitored pollutant parameter data to the quality display module and the health adjustment module respectively; and is used to regularly monitor the temperature and humidity parameters in the indoor air, and then transmit the monitored temperature and humidity parameter data to the quality display module; and is used to monitor the latest pollutant parameters in the air when receiving the early warning detection signal, and then transmit the latest pollutant parameter data to the quality display module;

[0053] The quality display module is used to calculate the air pollution index according to the received pollutant parameter data and the preset limit threshold of the concentration of each pollutant after receiving the pollutant parameter data and the temperature and humidity parameter data, and then transmit the monitored air pollution index to the health adjustment module; and is used to determine the air pollution level according to the comparison of the calculated air pollution index and the preset air pollution index level division threshold; and is used to graphically display the temperature and humidity parameter data and the air pollution level; and is used to calculate the latest air pollution index after receiving the latest pollutant parameter data, and then transmit the latest air pollution index data to the abnormal warning module; the quality display module is used to display the warning information after receiving the warning signal;

[0054] The health adjustment module is used to calculate the health adjustment duration according to the received pollutant parameter data and the air pollution index, the preset safety value of each pollutant, the preset indoor space volume, and the preset purifier purification rate after receiving the pollutant parameter data and the air pollution index; and to control the purifier to be turned on or off according to the calculated health adjustment duration; and to generate an early warning detection signal when the air purifier is turned off, and then transmit the early warning detection signal to the quality display module;

[0055] The abnormal warning module is used to compare the latest air pollution index data with the preset pollution index warning threshold range after receiving the latest air pollution index data; and to generate a warning signal when the latest air pollution index data is outside the preset pollution index warning threshold range, and then transmit the warning signal to the quality display module; and to sound an alarm when the warning signal is generated.

[0056] In this embodiment, the air monitoring module includes a pollution monitoring unit, a temperature and humidity monitoring unit and a Zigbee module.

[0057] The pollution monitoring unit is used to regularly monitor the concentration of carbon dioxide, carbon monoxide, and PM in indoor air. 2.5 concentration, formaldehyde concentration and TVOC concentration, and then monitor the carbon dioxide concentration data, carbon monoxide concentration data, PM 2.5The concentration data, formaldehyde concentration data and TVOC concentration data are transmitted to the Zigbee module; and are used to monitor the carbon dioxide concentration, carbon monoxide concentration, PM concentration in the indoor air when receiving the early warning detection signal. 2.5 concentration, formaldehyde concentration and TVOC concentration, and then monitor the latest carbon dioxide concentration data, carbon monoxide concentration data, PM 2.5 Concentration data, formaldehyde concentration data and TVOC concentration data are transmitted to the Zigbee module;

[0058] The temperature and humidity monitoring unit is used to regularly monitor the indoor temperature and humidity, and then transmit the monitored temperature and humidity data to the Zigbee module. The temperature and humidity monitoring unit is a temperature sensor and a humidity sensor;

[0059] The Zigbee module is used to receive carbon dioxide concentration data, carbon monoxide concentration data, PM 2.5 concentration data, formaldehyde concentration data, TVOC concentration data, temperature data and humidity data, and then the carbon dioxide concentration data, carbon monoxide concentration data, PM 2.5 concentration data, formaldehyde concentration data, TVOC concentration data, temperature data and humidity data are transmitted to the quality display module and the health adjustment module respectively; and are used to receive the latest carbon dioxide concentration data, carbon monoxide concentration data, PM 2.5 The concentration data, formaldehyde concentration data and TVOC concentration data are transmitted to the quality display module, which provides real-time and accurate data support for the quality display module and health adjustment module by regularly monitoring the pollutant parameters and temperature and humidity parameters in the indoor air. At the same time, when receiving the early warning detection signal, it can quickly monitor the latest pollutant parameters in the air and provide timely data updates for the abnormal early warning module to ensure the accuracy and response speed of the early warning system.

[0060] In this embodiment, the pollution monitoring unit is a plurality of sensors, namely a carbon dioxide sensor, a carbon monoxide sensor, a PM 2.5 Sensor, formaldehyde sensor and TVOC sensor.

[0061] In this embodiment, the quality display module includes an air pollution index calculation unit, a pollution level classification unit, a 5G communication module and a mobile display unit;

[0062] The air pollution index calculation unit is used to receive carbon dioxide concentration data, carbon monoxide concentration data, PM 2.5 concentration data, formaldehyde concentration data, TVOC concentration data, according to the carbon dioxide concentration data, carbon monoxide concentration data, PM 2.5The air pollution index is calculated based on the concentration data, formaldehyde concentration data, TVOC concentration data and the preset limit threshold of each pollutant concentration, and then the monitored air pollution index is transmitted to the pollution level classification unit and the health adjustment module respectively; and is used to receive the latest carbon dioxide concentration data, carbon monoxide concentration data, PM 2.5 concentration data, formaldehyde concentration data and TVOC concentration data, and then according to the latest carbon dioxide concentration data, carbon monoxide concentration data, PM 2.5 The latest air pollution index is calculated based on the limit threshold of each pollutant concentration of the concentration data, formaldehyde concentration data and TVOC concentration data, and then the latest air pollution index is transmitted to the abnormal warning module. The air pollution index calculation unit is a processor;

[0063] The pollution level classification unit is used to compare the calculated air pollution index with the preset air pollution index level classification threshold after receiving the air pollution index, determine the air pollution level, and then transmit the air pollution level to the 5G communication module; and is used to transmit the warning signal to the 5G communication module after receiving the warning signal, and the pollution level classification unit is a processor;

[0064] The 5G communication module is used to graphically display temperature data, humidity data and air pollution level data after receiving them; and is used to display warning information after receiving warning signals, calculate the air pollution index based on the received pollutant parameter data and the preset limit threshold, and determine the air pollution level, providing users with intuitive air quality information. The user experience is enhanced by graphically displaying temperature and humidity parameter data and air pollution levels. After receiving the latest pollutant parameter data, the latest air pollution index can be quickly calculated and transmitted to the abnormal warning module, providing timely data support for the warning system. After receiving the warning signal, the warning information can be displayed to remind users to take corresponding measures.

[0065] In this embodiment, the calculation formula of the air pollution index is:

[0066]

[0067] Where API is the air pollution index, α is the environmental impact factor, α∈(0,1), n ​​is the number of pollutants, i is the pollutant number, i∈(0,5), λ i is the pollution index of the i-th pollutant, k i is the weight coefficient of the i-th pollutant, and c i is the concentration data of the i-th pollutant, c CO It is the safe value of carbon monoxide concentration, and its unit is ppm. is the carbon dioxide concentration data, its unit is mg / m 3 , It's PM 2.5 Concentration data, the unit is μg / m 3 , c HCHO It is the formaldehyde concentration data, and its unit is mg / m 3 , c TVOC It is the TVOC concentration data, and its unit is mg / m 3 ,s i is the limit threshold of the i-th pollutant, s CO is the carbon monoxide concentration limit threshold, its unit is ppm, is the carbon dioxide concentration limit threshold, its unit is mg / m 3 , It's PM 2.5 Concentration limit threshold, its unit is μg / m 3 ,s HCHO It is the formaldehyde concentration limit threshold, and its unit is 1.5mg / m 3 ,s TVOC is the TVOC concentration limit threshold, its unit is mg / m 3 .

[0068] In this embodiment, when c CO =30ppm, c HCHO =0.1mg / m 3 ,c TVOC =0.5mg / m3,s CO =50ppm, s HCHO =0.1mg / m 3 ,s TVOC =0.6mg / m 3 , k 1 , k 2 , k 3 , k 4 , k 5 They are 0.2, 0.4, 0.1, 0.2, and 0.1 respectively, and α=0.8. The air pollution index is calculated to be 0.67.

[0069] In this embodiment, the calculated air pollution index is compared with the preset air pollution index level classification threshold, and the air pollution level is determined in the following manner:

[0070]

[0071] Among them, APL is the air pollution level, API is the air pollution index, and when the output result is Ⅰ, it indicates light pollution, when the output result is Ⅱ, it indicates moderate pollution, and when the output result is Ⅲ, it indicates heavy pollution.

[0072] In this embodiment, the health adjustment module includes a duration calculation unit, a timing unit and an MCU control unit;

[0073] The duration calculation unit is used to receive carbon dioxide concentration data, carbon monoxide concentration data, PM 2.5 After receiving the carbon dioxide concentration data, carbon monoxide concentration data, PM 2.5 The concentration data, formaldehyde concentration data, TVOC concentration data and air pollution index as well as the preset safety value of each pollutant, the preset indoor space volume, and the preset purification rate of the purifier are used to calculate the health adjustment time, and then the calculated health adjustment time data is transmitted to the timing unit, and the time calculation unit is a microprocessor;

[0074] The timing unit is used to start timing and generate a purification start signal when receiving the health adjustment duration data, and then transmit the purification start signal data to the MCU control unit; and is used to generate a purification shutdown signal when the timing duration reaches the health adjustment duration, and then transmit the purification shutdown signal data to the MCU control unit. The timing unit is a programmable timer;

[0075] The MCU control unit is used to control the purifier to turn on after receiving the purification start signal data; and to control the purifier to turn off after receiving the purification shutdown signal data; and to generate an early warning detection signal when controlling the purifier to turn off, and then transmit the early warning detection signal to the 5G communication module. The MCU control unit is an MCU controller. According to the received pollutant parameter data, air pollution index, preset safety value, indoor space volume and purifier purification rate, it calculates the health adjustment time, and controls the purifier to turn on or off accordingly, effectively improving the indoor air quality. When the air purifier is turned off, it can generate an early warning detection signal, and the system continues to monitor the air quality to ensure air health.

[0076] In this embodiment, the calculation formula for the health adjustment time is:

[0077]

[0078] T health =max(T 1 , T 2 , ..., T i );

[0079] Among them, Ti Calculate the time required for each pollutant to reach a safe level, its unit is h, β is the purification factor, β∈(0,1), its unit is h, V is the preset purification rate of the purifier, c i is the concentration data of the i-th pollutant, c CO It is the safe value of carbon monoxide concentration, and its unit is ppm. is the carbon dioxide concentration data, its unit is mg / m 3 , It's PM 2.5 Concentration data, the unit is μg / m 3 , c HCHO It is the formaldehyde concentration data, and its unit is mg / m 3 , c TVOC It is the TVOC concentration data, and its unit is mg / m 3 , is the safety value of the i-th pollutant, It is the safe value of carbon monoxide concentration, and its unit is ppm. is the safe value of carbon dioxide concentration, its unit is mg / m 3 , It's PM 2.5 Concentration safety value, its unit is μg / m, It is the safe value of formaldehyde concentration, and its unit is mg / m 3 , It is the safe value of TVOC concentration, and its unit is mg / m 3 , i is the pollutant number, i∈(0,5), API is the air pollution index, T health is the health adjustment duration, and its unit is h.

[0081] In this embodiment, when c HCHO =0.1mg / m 3 ,c TVOC =0.5mg / m 3 ,

[0082] β=0.1,API=1,then the calculated health adjustment time is 2h.

[0083] In this embodiment, the abnormal warning module includes an abnormal comparison unit and an early warning module.

[0084] The abnormal comparison unit is used to compare the latest air pollution index data with the preset pollution index warning threshold range after receiving the latest air pollution index data; and is used to generate a warning signal when the latest air pollution index data is outside the preset pollution index warning threshold range, and then transmit the warning signal to the 5G communication module and the warning module respectively, and the abnormal comparison unit is a processor;

[0085] The early warning module is used to sound an alarm after receiving the early warning signal. The early warning module is an early warning device. By comparing the latest air pollution index data with the preset pollution index early warning threshold range, it can detect abnormal air quality in time and generate an early warning signal. At the same time, when the early warning signal is generated, an alarm is sounded to remind users to pay attention and take corresponding measures, effectively avoiding the health risks that may be caused by the deterioration of air quality.

[0086] In this embodiment, the latest air pollution index data is compared with the preset pollution index warning threshold range:

[0087]

[0088] Among them, API new It is the latest air pollution index. When Result = true, it means the air environment is normal. When Result = false, it means the air environment is abnormal.

[0089] In summary, this system realizes comprehensive monitoring, precise calculation, timely warning and effective regulation of indoor air quality by integrating air monitoring module, quality display module, health adjustment module and abnormal warning module. The air monitoring module provides real-time and accurate data support; the quality display module provides users with intuitive air quality information and warning information; the health adjustment module intelligently adjusts the purifier according to the air quality data to improve the indoor air quality; the abnormal warning module can detect air quality abnormalities in time and issue an alarm, effectively avoiding health risks. The whole system has a high level of intelligence and automation, and can provide users with a safe, comfortable and healthy indoor environment.

[0090] The above embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work shall all fall within the scope of protection of the present invention.

Claims

1. An early warning system for air quality monitoring, characterized in that: It includes air monitoring module, quality display module, health adjustment module and abnormal warning module. The air monitoring module is used to regularly monitor the pollutant parameters in the indoor air, and then transmit the monitored pollutant parameter data to the quality display module and the health adjustment module respectively; and is used to regularly monitor the temperature and humidity parameters in the indoor air, and then transmit the monitored temperature and humidity parameter data to the quality display module; and is used to monitor the latest pollutant parameters in the air when receiving the early warning detection signal, and then transmit the latest pollutant parameter data to the quality display module; The quality display module is used to calculate the air pollution index according to the received pollutant parameter data and the preset limit threshold of the concentration of each pollutant after receiving the pollutant parameter data and the temperature and humidity parameter data, and then transmit the monitored air pollution index to the health adjustment module; And used to determine the air pollution level according to the air pollution index calculated by comparison and the preset air pollution index level division threshold; and used to graphically display the temperature and humidity parameter data and the air pollution level; and used to calculate the latest air pollution index after receiving the latest pollutant parameter data, and then transmit the latest air pollution index data to the abnormal warning module; The quality display module is used to display warning information after receiving the warning signal; The health adjustment module is used to calculate the health adjustment duration according to the received pollutant parameter data and the air pollution index, the received pollutant parameter data, the air pollution index, the preset safety value of each pollutant, the preset indoor space volume, and the preset purification rate of the purifier after receiving the pollutant parameter data and the air pollution index; And used to control the purifier to turn on or off according to the calculated health adjustment time; and used to generate a warning detection signal when the air purifier is turned off, and then transmit the warning detection signal to the quality display module; The abnormal warning module is used to compare the latest air pollution index data with a preset pollution index warning threshold range after receiving the latest air pollution index data; and to generate a warning signal when the latest air pollution index data is outside the preset pollution index warning threshold range, and then transmit the warning signal to the quality display module; and to sound an alarm when the warning signal is generated.

2. The early warning system for air quality monitoring according to claim 1, characterized in that: The air monitoring module includes a pollution monitoring unit, a temperature and humidity monitoring unit and a Zigbee module. The pollution monitoring unit is used to regularly monitor the concentration of carbon dioxide, carbon monoxide, PM 2.5 concentration, formaldehyde concentration and TVOC concentration, and then monitor the carbon dioxide concentration data, carbon monoxide concentration data, PM 2.5 The concentration data, formaldehyde concentration data and TVOC concentration data are transmitted to the Zigbee module; and are used to monitor the carbon dioxide concentration, carbon monoxide concentration, PM concentration in the indoor air when receiving the early warning detection signal. 2.5 concentration, formaldehyde concentration and TVOC concentration, and then monitor the latest carbon dioxide concentration data, carbon monoxide concentration data, PM 2.5 The concentration data, formaldehyde concentration data and TVOC concentration data are transmitted to the Zigbee module; The temperature and humidity monitoring unit is used to regularly monitor the indoor temperature and humidity, and then transmit the monitored temperature data and humidity data to the Zigbee module; The Zigbee module is used to receive carbon dioxide concentration data, carbon monoxide concentration data, PM 2.5 concentration data, formaldehyde concentration data, TVOC concentration data, temperature data and humidity data, and then the carbon dioxide concentration data, carbon monoxide concentration data, PM 2.5 concentration data, formaldehyde concentration data, TVOC concentration data, temperature data and humidity data are transmitted to the quality display module and the health adjustment module respectively; and is used to receive the latest carbon dioxide concentration data, carbon monoxide concentration data, PM 2.5 The concentration data, formaldehyde concentration data and TVOC concentration data are transmitted to the quality display module.

3. The early warning system for air quality monitoring according to claim 2, characterized in that: The pollution monitoring unit is a plurality of sensors, namely a carbon dioxide sensor, a carbon monoxide sensor, a PM 2.5 Sensor, formaldehyde sensor and TVOC sensor.

4. The early warning system for air quality monitoring according to claim 1, characterized in that: The quality display module includes an air pollution index calculation unit, a pollution level classification unit, a 5G communication module and a mobile display unit; The air pollution index calculation unit is used to receive carbon dioxide concentration data, carbon monoxide concentration data, PM 2.5 concentration data, formaldehyde concentration data, TVOC concentration data, according to the carbon dioxide concentration data, carbon monoxide concentration data, PM 2.5 The air pollution index is calculated by the concentration data, formaldehyde concentration data, TVOC concentration data and the preset limit threshold of each pollutant concentration, and then the monitored air pollution index is transmitted to the pollution level classification unit and the health adjustment module respectively; and is used to receive the latest carbon dioxide concentration data, carbon monoxide concentration data, PM 2.5 concentration data, formaldehyde concentration data and TVOC concentration data, and then according to the latest carbon dioxide concentration data, carbon monoxide concentration data, PM 2.5 The latest air pollution index is calculated based on the limit threshold of the concentration of each pollutant in the concentration data, formaldehyde concentration data and TVOC concentration data, and then the latest air pollution index is transmitted to the abnormal warning module; The pollution level classification unit is used to compare the calculated air pollution index with a preset air pollution index classification threshold after receiving the air pollution index, determine the air pollution level, and then transmit the air pollution level to the 5G communication module; And used to transmit the warning signal to the 5G communication module after receiving the warning signal; The 5G communication module is used to graphically display temperature data, humidity data and air pollution level data after receiving the temperature data, humidity data and air pollution level data; and is used to display warning information after receiving a warning signal.

5. The early warning system for air quality monitoring according to claim 4, characterized in that: The calculation formula of the air pollution index is: Where API is the air pollution index, α is the environmental impact factor, α∈(0,1), n ​​is the number of pollutants, i is the pollutant number, i∈(0,5), λ i is the pollution index of the i-th pollutant, k i is the weight coefficient of the i-th pollutant, and c i is the concentration data of the i-th pollutant, c CO It is the safe value of carbon monoxide concentration, and its unit is ppm. is the carbon dioxide concentration data, its unit is mg / m 3 , It's PM 2.5 Concentration data, the unit is μg / m 3 , c HCHO It is the formaldehyde concentration data, and its unit is mg / m 3 , c TVOC It is the TVOC concentration data, and its unit is mg / m 3 ,s i is the limit threshold of the i-th pollutant, s CO is the carbon monoxide concentration limit threshold, its unit is ppm, is the carbon dioxide concentration limit threshold, its unit is mg / m 3 , It's PM 2.5 Concentration limit threshold, its unit is μg / m 3 ,s HCHO is the formaldehyde concentration limit threshold, its unit is mg / m 3 ,s TVOC is the TVOC concentration limit threshold, its unit is mg / m 3 .

6. The early warning system for air quality monitoring according to claim 5, characterized in that: The method of comparing the calculated air pollution index with the preset air pollution index level classification threshold to determine the air pollution level is: Among them, APL is the air pollution level, API is the air pollution index, and when the output result is Ⅰ, it indicates light pollution, when the output result is Ⅱ, it indicates moderate pollution, and when the output result is Ⅲ, it indicates heavy pollution.

7. The early warning system for air quality monitoring according to claim 4, characterized in that: The health adjustment module includes a duration calculation unit, a timing unit and an MCU control unit; The duration calculation unit is used to receive carbon dioxide concentration data, carbon monoxide concentration data, PM 2.5 After receiving the carbon dioxide concentration data, carbon monoxide concentration data, PM 2.5 concentration data, formaldehyde concentration data, TVOC concentration data and air pollution index as well as preset safety values ​​of each pollutant, preset indoor space volume, and preset purification rate of the purifier to calculate the health adjustment time, and then transmit the calculated health adjustment time data to the timing unit; The timing unit is used to start timing and generate a purification start signal when receiving the health adjustment duration data, and then transmit the purification start signal data to the MCU control unit; and is used to generate a purification shutdown signal when the timing duration reaches the health adjustment duration, and then transmit the purification shutdown signal data to the MCU control unit; The MCU control unit is used to control the purifier to turn on after receiving the purification start signal data; and to control the purifier to turn off after receiving the purification stop signal data; and to generate an early warning detection signal when controlling the purifier to turn off, and then transmit the early warning detection signal to the 5G communication module.

8. An early warning system for air quality monitoring according to claim 7, characterized in that: The calculation formula for the health adjustment time is: T health =max(T1,T2,……,T i ); Among them, T i Calculate the time required for each pollutant to reach a safe level, the unit is h, β is the purification factor, V is the preset purification rate of the purifier, c i is the concentration data of the i-th pollutant, c CO It is the safe value of carbon monoxide concentration, and its unit is ppm. is the carbon dioxide concentration data, its unit is mg / m 3 , It's PM 2.5 Concentration data, the unit is μg / m 3 , c HCHO It is the formaldehyde concentration data, and its unit is mg / m 3 , c TVOC It is the TVOC concentration data, and its unit is mg / m 3 , is the safety value of the i-th pollutant, It is the safe value of carbon monoxide concentration, and its unit is ppm. is the safe value of carbon dioxide concentration, its unit is mg / m 3 , It's PM 2.5 Concentration safety value, the unit is μg / m 3 , It is the safe value of formaldehyde concentration, and its unit is mg / m 3 , It is the safe value of TVOC concentration, and its unit is mg / m 3 , i is the pollutant number, i∈(0,5), API is the air pollution index, T health is the health adjustment duration, and its unit is h.

9. The early warning system for air quality monitoring according to claim 4, characterized in that: The abnormal warning module includes an abnormal comparison unit and an early warning module. The abnormal comparison unit is used to compare the latest air pollution index data with a preset pollution index warning threshold range after receiving the latest air pollution index data; and is used to generate a warning signal when the latest air pollution index data is outside the preset pollution index warning threshold range, and then transmit the warning signal to the 5G communication module and the warning module respectively; The early warning module is used to sound an alarm after receiving the early warning signal.

10. An early warning system for air quality monitoring according to claim 9, characterized in that: The method of comparing the latest air pollution index data with the preset pollution index warning threshold range is as follows: Among them, API new It is the latest air pollution index. When Result = true, it means the air environment is normal. When Result = false, it means the air environment is abnormal.

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