System for monitoring and controlling indoor air quality and aerosol on line

Abstract

The utility model belongs to the technical field of indoor aerosol, and discloses a system for monitoring and controlling indoor air quality and aerosol on line, which comprises a control device, a communication device and a purification device which are connected in sequence, an air quality sensor is arranged in the communication device, a USB interface and an infrared signal emission port are formed in the side face of a shell of the communication device, the control device is connected to the air quality sensor through the USB interface, and the communication device is used for transmitting air quality signals and receiving instruction signals of the control device. The command signal is transmitted to the purification device through the infrared signal emission port; and the purification device receives the instruction signal and adjusts the operation mode according to the instruction signal. The indoor environment air quality can be monitored on line in real time, the gas concentration threshold value is automatically recognized, and the operation mode of the purification device is controlled.

Description

Technical Field

[0001] The utility model belongs to the technical field of indoor aerosols, in particular to a system for online monitoring and controlling indoor air quality and aerosols. Background Art

[0002] With the improvement of living standards, people pay more attention to the air quality of their homes and offices. They use a lot of beautification and decoration materials, which leads to the use of a large number of chemicals indoors, making indoor environmental pollution problems increasingly prominent, especially the total volatile organic compounds (TVOC), formaldehyde, xylene, and inhalable particulate matter PM released by decoration materials. 10 , inhalable particulate matter PM 2.5 , bacteria and viruses are the main substances of indoor air pollution. Therefore, the problem of indoor air pollution has attracted more and more attention.

[0003] At present, domestic and foreign researchers have conducted a lot of research on the characteristics and control methods of indoor environmental pollution. However, due to the complex and highly toxic components of indoor pollutants, and the potential impact of different seasons, different time periods and human actions on the indoor environment, people are unable to know the concentration of pollutants in their indoor environment and take corresponding treatment measures. At present, a large number of studies are focused on the purification technology of purification systems. The purification system has relatively large limitations in identifying indoor pollutants, and most purification systems require manual control of their operating modes. Even a large part of the purification systems cannot identify the degree of environmental pollution, and can only control the operating status of the purification equipment through people's subjective feelings. The devices used have problems such as time-consuming, power-consuming and labor-consuming. In order to better solve the problems existing in the existing detection and control integration technology, it is necessary to design an online monitoring and control system for indoor air quality and aerosol. By building an online air quality detection device and using its autonomous online monitoring and identification transmission characteristics, the pollution characteristics of the indoor environment are explored, the reduction and transformation mechanism of pollutants is clarified, and a scientific basis is provided for the relevant departments in the control and decision-making of indoor air pollution. Utility Model Content

[0004] The purpose of the utility model is to provide a system for online detection and control of indoor air quality and aerosols. The system monitors indoor aerosols online and controls indoor pollutants in real time. The communication device has a built-in air quality sensor, which can monitor the indoor environmental air quality in real time online, automatically identify the gas concentration threshold and control the operation mode of the purification device.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A system for online monitoring and control of indoor air quality and aerosols, the system comprising a control device, a communication device and a purification device connected in sequence; the communication device has a built-in air quality sensor, a USB interface and an infrared signal transmitting port are provided on the side of the shell of the communication device, the control device is connected to the air quality sensor via the USB interface, the communication device is used to transmit air quality signals and receive command signals from the control device, and transmit the command signals to the purification device via the infrared signal transmitting port; the purification device receives the command signals and adjusts the operation mode according to the command signals.

[0007] Furthermore, an air inlet and an air outlet are provided on the top of the communication device.

[0008] Furthermore, the air inlet and the air outlet are both circular.

[0009] Furthermore, an air inlet and an air outlet are provided on the side of the purification device housing.

[0010] Furthermore, a display screen is provided above the air outlet, and the infrared signal emitted by the infrared signal transmitting port is wirelessly connected to the display screen.

[0011] Furthermore, the emitted infrared signal maintains the same height as the display screen.

[0012] Furthermore, a low-temperature plasma purifier and a composite filter are provided inside the purification device.

[0013] Preferably, the composite filter is composed of a primary filter layer-a high efficiency air particle filter layer-activated carbon.

[0014] Furthermore, four movable wheels for movement are installed at the bottom of the purification device.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. The control device, communication device and purification device in the online monitoring and control of indoor air quality and aerosol system of the utility model are connected in sequence. By online monitoring of indoor aerosols and real-time control of indoor pollutants, the communication device has a built-in air quality sensor, which can monitor and collect temperature, humidity, CO2 concentration, HCHO concentration, PM2.5, etc. in real time online. 2.5 Concentration, PM 10 The data of concentration and TVOC concentration are transmitted to the touch screen of the control device via wire and can be viewed and saved in real time. The control device sends a command signal to the communication device according to the measured data and predefined rules, and the command signal is converted into an infrared signal and transmitted to the purification device to control the operation mode of the purification device.

[0017] 2. The communication device of the utility model communicates with the control device through USB connection and the purification device through infrared signal connection. The control device communicates with the communication device through the USB port and sends instructions to the communication device, and connects to the control device system through infrared signals. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the online monitoring and control system of indoor air quality and aerosol of the utility model;

[0019] Figure 2 The utility model is a flowchart of the online monitoring and control system of indoor air quality and aerosol.

[0020] In the figure, 1-control device, 2-communication device, 3-purification device, 21-USB interface; 22-air inlet; 23-air outlet; 24-infrared signal transmitting port; 31-air inlet, 32-air outlet; 33-display screen. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0022] It should be noted that in the present invention, the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0023] It should be noted that in the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0024] Example 1

[0025] like Figure 1 and 2 As shown, the utility model is a system for online monitoring and control of indoor air and aerosol, the system comprises a control device 1, a communication device 2 and a purification device 3 connected in sequence; the communication device 2 has a built-in air quality sensor for real-time monitoring of indoor air temperature, humidity, gas and particulate matter concentration (CO2, HCHO, TVOC, PM 2.5 and PM 10 ), a USB interface 21 and an infrared signal transmitting port 24 are provided on the side of the shell of the communication device 2, the control device 1 is connected to the air quality sensor through the USB interface 21, the communication device 2 is used to transmit air quality signals and receive command signals from the control device 1, and transmit the command signals to the purification device 3 through the infrared signal transmitting port 24; the purification device 3 receives the command signals and adjusts the operation mode according to the command signals.

[0026] The communication device 2 is provided with a metal shell on the top thereof, and an air inlet 22 and an air outlet 23. Air enters from the air inlet 22 and is detected, and then is discharged from the air outlet 23 to achieve a dynamic cycle.

[0027] The air inlet 22 and the air outlet 23 are both circular;

[0028] An air inlet 31 and an air outlet 32 ​​are provided on the side of the shell of the purification device 3 .

[0029] A display screen 33 is provided above the air outlet 32 ​​for receiving infrared signals and displaying the working parameters of air purification (temperature, humidity; working wind speed level; whether disinfection / enhanced disinfection / negative ions). The infrared signal emitted by the infrared signal transmitting port 24 is wirelessly connected to the display screen 33.

[0030] The height of the communication device 2 is adjusted by using an external bracket to keep it consistent with the height of the display screen 33 of the purification device 3, and the infrared signal is transmitted to the display screen 33 of the purification device 3. When a red laser dot is visible on the display screen 33, the infrared signal of the communication device 2 reaches the same height as the display screen 33 of the purification device 3. This allows the infrared signal to be better transmitted to the display screen 33, thereby transmitting the command signal to the purification device 3.

[0031] The purification device 3 is provided with a low-temperature plasma purifier and a composite filter. The composite filter is composed of a primary filter layer, a high-efficiency air particle filter layer, and activated carbon. The low-temperature plasma purifier is located at the air inlet 31. The air first enters from the air inlet 31, passes through the composite filter, then passes through the low-temperature plasma purifier, and finally is discharged from the air outlet 32. It can preliminarily purify particulate matter, volatile organic matter, pollen and fungal spores in the air. The low-temperature plasma purifier can further purify air pollutants, thereby bringing about the effect of a fresh air system. In addition, disinfectant agents can be applied to the composite filter or the air inlet to further enhance the purification capacity of the purification system.

[0032] Four movable wheels are installed at the bottom of the purification device 3 for easy transportation and placement.

[0033] The control device 1 is a multifunctional computer, which has an application program matching the communication device 2. The control device 1 is connected to the communication device 2 by wired data. The control device 1 has a built-in application program and controls the operation mode of the purification device 3. The communication device 2 monitors the indoor air quality and transmits the monitoring data to the control device 1. The control device 1 compares the monitoring data with its internal preset value. When the monitoring data is greater than the preset value, the control device 1 sends a corresponding instruction to control the operation mode of the purification device 3.

[0034] The communication device 2 is installed 15-20 cm above the ground and can be placed or hung at any angle. The operating temperature is 0-50°C and the operating humidity is ≤ RH95%. The flow rate of the air inlet 22 is 1800m 3 / h, the plane where the air inlet 22 and the air outlet 23 are located is close to the air hole on the inner wall of the user machine that is connected to the outside world, and there is no obstruction within 2cm around the air outlet 23. There is airflow isolation between the air inlet 22 and the air outlet 23 to prevent the airflow from directly flowing back from the air outlet 23 to the air inlet 22 inside the device.

[0035] The working process of the utility model is:

[0036] (1) Power on the control device, communication device, and purification device respectively, and connect the control device and communication device;

[0037] (2) When the communication device is powered on, it can automatically start to monitor the temperature, humidity, CO2 concentration, HCHO concentration, PM 2.5 Concentration, PM 10 The concentration and TVOC concentration are monitored in real time and transmitted to the control device through wired signals. The application of the control device displays the monitoring data and the operating parameters of the purification device through the touch screen;

[0038] (3) The control device sends instructions to the communication device based on the measured data and predefined rules. The communication device converts the instructions into infrared signals and transmits them to the purification device to control the operation mode of the purification device.

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A system for online monitoring and control of indoor air quality and aerosol, characterized in that: The system comprises a control device (1), a communication device (2) and a purification device (3) which are connected in sequence; the communication device (2) has a built-in air quality sensor, a USB interface (21) and an infrared signal transmitting port (24) are provided on the side of the shell of the communication device (2); the control device (1) is connected to the air quality sensor via the USB interface (21); the communication device (2) is used to transmit air quality signals and receive command signals from the control device (1), and transmit the command signals to the purification device (3) via the infrared signal transmitting port (24); the purification device (3) receives the command signals and adjusts the operation mode according to the command signals; an air inlet (31) and an air outlet (32) are provided on the side of the shell of the purification device (3); a display screen (33) is provided above the air outlet (32); the infrared signal emitted by the infrared signal transmitting port (24) is wirelessly connected to the display screen (33); the emitted infrared signal and the display screen (33) are kept at the same height.

2. The system for online monitoring and control of indoor air quality and aerosol according to claim 1, characterized in that: The communication device (2) is provided with an air inlet (22) and an air outlet (23) at the top.

3. The system for online monitoring and control of indoor air quality and aerosol according to claim 2, characterized in that: The air inlet (22) and the air outlet (23) are both circular.

4. The system for online monitoring and control of indoor air quality and aerosol according to claim 1, characterized in that: The purification device (3) is internally provided with a low-temperature plasma purifier and a composite filter.

5. The system for online monitoring and control of indoor air quality and aerosol according to claim 4, characterized in that: The composite filter screen is composed of a primary filter layer, a high-efficiency air particle filter layer and activated carbon.

6. The system for online monitoring and control of indoor air quality and aerosol according to claim 1, characterized in that: Four movable wheels for movement are installed at the bottom of the purification device (3).

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