Control circuit of gas detection module controller

Abstract

To provide a control circuit of a gas detection module controller which can be combined with a room cleaning device, the control circuit operating with a controller of a room air cleaning system to monitor in real time, process, and filter room air and reduce pollution of room air.SOLUTION: A control circuit of a gas detection module controller includes: an AC power source line 1; a power source conversion unit A; a plurality of voltage modulation elements B; a micro-controller MCU unit C; an expansion connection port D; a data transfer line 5; and an input-output control circuit 6.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a device control circuit connected to an indoor air purification system, and more particularly to a control circuit of a gas detection module control device.

Background Art

[0002] Suspended particulate matter refers to solid particles or droplets contained in gas. Since the particle size is very small, it can easily penetrate into the human lungs through the nasal hairs in the nasal cavity, which may cause lung inflammation, asthma, and cardiovascular diseases. When other pollutants adhere to the suspended particles, the damage to the lungs will be even greater. In recent years, the problem of gas (air) pollution has become increasingly serious. In particular, the concentration data of tiny suspended particulate matter (such as PM2.5, etc.) is often too high, and the monitoring of the gas suspended particulate matter concentration has gradually attracted attention. However, since the gas changes due to the wind direction and wind volume, the flowing direction is unstable, and most of the existing gas quality monitoring stations for detecting suspended particulate matter are point observations, and it is impossible to observe the concentration of suspended particulate matter in the general living environment.

[0003] In addition, people's requirements for the air quality of the living environment are increasing. Among them, gases such as carbon monoxide, carbon dioxide, volatile organic compounds (VOCs), PM2.5, nitrogen monoxide, sulfur monoxide, and the fine particles contained in the gas, etc., affect human health, and in serious cases, may endanger life. Therefore, the air quality in the living environment has attracted the attention of various countries, and how to detect the air quality has become an issue in order to avoid air pollution or stay away from air pollution areas.

[0004] In order to confirm the air quality, it is conceivable to use a gas sensor to detect the surrounding air pollution. If the detection information is provided in real time, a warning can be issued to the surrounding people, and prevention can be carried out immediately. Using a gas sensor to detect the surrounding environment is a very excellent means to avoid the impact and damage on the human body caused by the risk of air pollution in the environment.

[0005] However, indoor air quality control is not easy. In addition to outdoor air quality, indoor air conditioning conditions and pollution sources are the main factors affecting indoor air quality. Indoors, detecting air pollution sources intelligently and quickly can not only effectively remove indoor air pollution and form a clean and safe air state, but also monitor indoor air quality anytime and anywhere. Of course, if the indoor area strictly manages the concentration of suspended particles according to the Clean Room standard, especially avoids the introduction, generation, and retention of particles, and endeavors to control the temperature and humidity within the required range, it is possible to judge and control air pollution based on the amount of suspended particles in the air and realize a breathing-safe indoor area that meets the Clean Room requirements.

[0006] The air pollution detection of existing indoor air purification systems detects and outputs air pollution information by a gas sensor in order to perform the operation and adjustment control of the fan of the filter device. Furthermore, the detection result is transmitted to a cloud computing device through Internet communication. The cloud computing device receives indoor and outdoor air pollution data to form and store a database of air pollution data. Based on the database of the air pollution data, the cloud computing device intelligently compares and calculates, and intelligently selects a control command to transmit to the filter device. Thereby, an internally circulating airflow can be continuously generated indoors, and air pollution is induced and filtered and removed by the filter device multiple times, improving the indoor air pollution state and realizing a clean room-level air environment that meets the cleanliness requirement of the number of suspended particles.

[0007] The indoor air purification system can eliminate indoor air pollution and form a breathable indoor air environment by realizing indoor air quality and filtration and cleaning in real time through the coordinated control of a plurality of indoor cleaning devices and a control device arranged indoors. How these filter devices cooperate with the gas sensor and the cloud computing device for control is an issue faced by the present invention.

Summary of the Invention

Problems to be Solved by the Invention

[0008] An object of the present invention is to provide a control circuit for a gas detection module control device. The control circuit is combined with each indoor cleaning device to realize the detection of air pollution and the coordinated adjustment control operation. In addition, a cloud computing device forms a control command, feeds it back to the electrical connection of the gas detection module, and further transmits it to the drive control element of the indoor cleaning device to control the starting operation of the device. Thereby, air pollution is filtered by the filter, the air pollution in the indoor area is eliminated, and the cleanliness of the clean room level is realized. In addition, the detection element of the gas detection module compares with the air pollution data, transmits a control command to the drive control element of the indoor cleaning device to perform start control, the air pollution is filtered by the filter, the air pollution in the indoor area is eliminated, the requirements of the clean room are met, and an indoor air cleaning system is realized.

Means for Solving the Problems

[0009] To achieve the above object, the present invention provides a control circuit of a gas detection module control device. The control circuit includes an AC power line, a power converter unit, a plurality of voltage modulation elements, and a microcontroller (MCU) unit. The AC power line provides an AC voltage, and the AC voltage output by the AC power line is input to the power converter unit, which converts it into a DC voltage through a plurality of first voltage dividing lines and outputs it. The plurality of voltage modulation elements receive the DC voltage converted by the first voltage dividing lines of the power converter unit and convert it into a required DC voltage through a plurality of second voltage dividing lines and output it. The microcontroller (MCU) unit operates by receiving the required DC voltage converted by the second voltage dividing lines. The microcontroller unit includes at least one extended connection port, a data transmission line, and an input / output control circuit. Each extended connection port receives a serial communication (IIC) signal through connection with a detection element and provides the serial communication (IIC) signal to the microcontroller unit through a plurality of serial communication lines for the operation of the microcontroller unit. The microcontroller unit uses a general-purpose asynchronous transceiver (UART) signal and general-purpose input / output (GPOutputs an (I / O) signal, and the data transmission line transmits a plurality of the general-purpose asynchronous transceiver (UART) signals to an ultraviolet (UV) lamp device, at least one external control device, a wireless communication module, and a communication interface device. The input / output control circuit transmits the general-purpose input / output signal to the ultraviolet lamp device and the external control device. The wireless communication module receives the required DC voltage formed by converting the required DC voltage by the second voltage dividing line, and also receives the general-purpose asynchronous transceiver signal output by the microcontroller unit and the general-purpose input / output signal output by the microcontroller unit to perform startup and receive communication signals with the outside. The communication interface device receives the required DC voltage formed by converting the required DC voltage by the first voltage dividing line and the general-purpose asynchronous transceiver signal output by the microcontroller unit to perform startup and communication connection. The ultraviolet lamp device receives the AC voltage output by the AC power line and the general-purpose input / output signal output by the microcontroller unit to perform startup and adjustment. The external control device receives the AC voltage output by the AC power line, the DC voltage formed by converting the required DC voltage by the first voltage dividing line, and the general-purpose asynchronous transceiver signal output by the microcontroller unit and the general-purpose input / output signal output by the microcontroller unit to perform startup and adjustment.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

Figure 3

Embodiments for Carrying Out the Invention

[0011] Embodiments embodying the features and advantages of the present invention will be described in detail in the following description. Without departing from the scope of the claims of the present invention, various changes can be made in different ways. Also, the following description and drawings are for the purpose of exemplifying the present invention and do not limit the present invention.

[0012] The present invention aims to realize the reduction of indoor air pollution and the promotion of indoor cleaning, etc., and form a breathable indoor cleaning state by a plurality of indoor cleaning devices and a control device arranged indoors in the indoor air cleaning system cooperating and controlling to perform real-time monitoring and processing / filtration of indoor air quality. Thus, by providing a control circuit of a gas detection module control device that can be combined with each indoor cleaning device and the control device, it enables the detection of air pollution and the coordinated adjustment control operation.

[0013] The present invention provides a control circuit of a gas detection module control device. The control circuit of the gas detection module control device includes an AC power line, a power converter unit, a plurality of voltage modulation elements, a microcontroller (MCU) unit, at least one extended connection port, a data transmission line, and an input / output control circuit, and realizes the detection of air pollution and the coordinated adjustment control (cooperative adjustment control) operation.

[0014] Please refer to FIGS. 1 to 3. The AC power line 1 supplies an AC voltage. The power converter unit A receives the AC voltage output by the AC power line 1 and converts it into a DC voltage through a plurality of first voltage dividing lines 2 and outputs it. In this embodiment, the first voltage dividing line 2 converts and outputs a 5V DC voltage, but the present invention is not limited thereto. Also, the plurality of voltage modulation elements B receive the DC voltage converted by the first voltage dividing line 2 of the power converter unit A and modulate (convert) it into a required DC voltage through a plurality of second voltage dividing lines 3 and output it. In this embodiment, the second voltage dividing line 3 converts and outputs a 3.3V DC voltage, but the present invention is not limited thereto.

[0015] The microcontroller (MCU) unit C is connected to the second voltage division line 3 of the voltage modulation element B and operates with the required DC voltage modulated by the voltage modulation element B. The microcontroller (MCU) unit C includes at least one extended connection port D, a data transmission line 5, and an input / output control circuit 6. The plurality of extended connection ports D are each connected to the detection element a and receive a serial communication (IIC) signal (the detection element a inputs a serial communication (IIC) signal to the extended connection port D). The signal is provided (transferred) to the microcontroller (MCU) unit C via a plurality of serial communication lines 4 for the microcontroller (MCU) unit C to perform calculations. Thereby, a general-purpose asynchronous transceiver (UART) signal and a general-purpose input / output (GPIO) signal are output to realize adjustment control. The data transmission line 5 transmits a plurality of general-purpose asynchronous transceiver (UART) signals to the connected ultraviolet (UV) lamp device E, at least one external control device F, a wireless communication module G, and a communication interface device H. The input / output control circuit 6 outputs a general-purpose input / output (GPIO) signal to the connected ultraviolet (UV) lamp device E and the external control device F. In this embodiment, the detection element a connected to the extended connection port D may be a particulate detection element 1a for detecting contamination data of indoor suspended particulates (PM1, PM2.5, PM10), and the present invention is not limited thereto. For example, in this embodiment, the detection element a connected to the extended connection port D may be a temperature detection element 2a for detecting contamination data of indoor temperature and humidity, and the present invention is not limited thereto. Also, in this embodiment, the detection element a connected to the extended connection port D is carbon dioxide (CO 2 ) for detecting contamination data of the indoor air, and the present invention is not limited thereto. For example, in this embodiment, the detection element a connected to the extended connection port D may be a carbon dioxide (CO 2)It may be the detection element 3a, and the present invention is not limited thereto. Also, in the present embodiment, a plurality of different detection elements can be connected by the extended connection port D to detect information and characteristics of indoor air pollution. For example, the detection element a is a volatile organic compound detection element 4a for detecting pollution data of volatile organic compounds (TVOC), a formaldehyde detection element 5a for detecting pollution data of formaldehyde, a bacteria detection element 6a for detecting pollution data of bacteria, a fungi detection element 7a for detecting pollution data of fungi, a virus detection element 8a for detecting pollution data of viruses, an ozone (O 3 ) detection element 9a for detecting pollution data of (O 3 ), or any one or a combination thereof of a carbon monoxide (CO) detection element 10a for detecting pollution data of carbon monoxide (CO) in the room.

[0016] In the present embodiment, according to the required (necessary) DC voltage, the wireless communication module G is connected to the second voltage dividing line 3, and the required DC voltage (3.3V) converted, modulated, and output from there is input through the connection with the second voltage dividing line 3. It starts up and receives communication signals with the outside by the universal asynchronous transceiver (UART) signal output by the microcontroller (MCU) unit C, and performs two-way communication with a cloud computing device (not shown) of the indoor air purification system.

[0017] According to the required (necessary) DC voltage, the communication interface device H is connected to the first voltage dividing line 2, and the required DC voltage (5V) converted, modulated, and output from there is input through the connection with the first voltage dividing line 2. It realizes startup control and communication connection by the universal asynchronous transceiver (UART) signal output by the microcontroller (MCU) unit C. The communication interface device H is connected to a central control system (Central monitoring and control system, not shown) via the communication control line 8, and performs connection and transfer of communication protocols. Note that in the present embodiment, the communication protocol is the RS485 communication protocol, but the present invention is not limited thereto.

[0018] The ultraviolet (UV) lamp device E realizes startup control and adjustment control by the input of the alternating current voltage (AC) output by the AC power line and the general-purpose input / output (GPIO) signal output by the microcontroller (MCU) unit C. In this embodiment, as shown in FIG. 3, the ultraviolet (UV) lamp device E includes a relay E1. The relay E1 outputs an alternating current voltage (AC) to the power switch E2 according to the input of the alternating current voltage (AC) output by the AC power line 1 and the general-purpose input / output (GPIO) signal of the microcontroller (MCU) unit C. The power switch E2 is connected to the ultraviolet (UV) lamp E3 and controls the startup and adjustment control of the ultraviolet (UV) lamp E3.

[0019] The external control device F realizes startup control and adjustment control through the input of the AC voltage (AC) output by the AC power line 1, the input of the required DC voltage formed by converting the DC voltage (5V) converted by the first voltage division line 2, as well as the general-purpose asynchronous transceiver (UART) signal output by the microcontroller (MCU) unit C and the general-purpose input / output (GPIO) signal output by the microcontroller (MCU) unit C. As shown in Figure 2, the external control device F may be a circulation filtration device. The circulation filtration device includes a relay F1 and a communication interface device F2. The relay F1 outputs an AC voltage (AC) through the electrical connection of the AC voltage (AC) output by the AC power line 1 and the general-purpose input / output (GPIO) signal output by the microcontroller (MCU) unit C. The AC voltage (AC) is provided to the drive control element F3 of the circulation filtration device for power control and adjustment. The communication interface device F2 is connected to the first voltage division line 2 according to the required DC voltage. The converted DC voltage (5V) converted therefrom by the connection with the first voltage division line 2 is input. Through the communication protocol connection between the communication control line 7 and the drive control element F3 by the input of the general-purpose asynchronous transceiver (UART) signal output by the microcontroller (MCU) unit C, the wind speed of the fan (not shown) of the circulation filtration device is controlled. In this embodiment, the communication protocol is the RS485 communication protocol, but the present invention is not limited thereto. Also, in this embodiment, the control circuit of the gas detection module control device provided by the present invention may be connected to a plurality of external control devices F. In this case, each external control device F is provided with an address encoder for connecting to the input / output control circuit 6, whereby a plurality of external control devices F can be serially connected and controlled.

[0020] As described above, the control circuit of the gas detection module control device provided by the present invention is installed in combination with each indoor cleaning device to realize the detection of air pollution and the coordinated adjustment control operation. The cloud computing device generates a control command, feedbacks the control command to the electrically connected gas detection module, and further transmits it to the drive control element of the indoor cleaning device to adjust and control the startup operation of the device. Thereby, air pollution is filtered by the filter, the air pollution gas in the indoor area is improved to a zero pollution state, and the requirements of the clean room grade are met. In addition, the detection element of the gas detection module autonomously calculates and compares the air pollution information, and transmits a control command to the drive control element of the indoor cleaning device to control and adjust the startup operation and the operation state. Thereby, air pollution is filtered by the filter, the air pollution gas in the indoor area is improved to a zero pollution state, and the requirements of the clean room grade are met. According to the present invention, an indoor air cleaning system can be realized, which has industrial application value.

Explanation of Signs

[0021] A: Power converter unit B: Voltage modulation element C: Microcontroller (MCU) unit D: Expansion connection port E: Ultraviolet (UV) lamp device E1: Relay E2: Power switch E3: Ultraviolet (UV) lamp F: External control device F1: Relay F2: Communication interface device F3: Drive control element G: Wireless communication module H: Communication interface device 1: AC power line 2: First voltage division line 3: Second voltage division line 4: Serial communication line 5: Data transmission line 6: Input / output control circuit 7, 8: Communication control lines a: Detection element 1a: Fine particle detection element 2a: Temperature detection element 3a: Carbon dioxide (CO 2 ) detection element 4a: Volatile organic compound detection element 5a: Formaldehyde detection element 6a: Bacteria detection element 7a: Fungus detection element 8a: Virus detection element 9a: Ozone (O 3 ) detection element 10a: Carbon monoxide (CO) detection element

Claims

1. A control circuit of a gas detection module control device, comprising an AC power line, a power converter unit, a plurality of voltage modulation elements, and a microcontroller (MCU) unit, The AC power line provides an AC voltage, The power converter unit receives the AC voltage output by the AC power line and converts it into a DC voltage for output through a plurality of first voltage dividing lines, The plurality of voltage modulation elements receive the DC voltage converted by the first voltage dividing lines of the power converter unit and convert it into a required DC voltage for output through a plurality of second voltage dividing lines, The microcontroller (MCU) unit operates by receiving the required DC voltage converted by the second voltage dividing lines. The microcontroller unit includes at least one expansion connection port, a data transmission line, and an input / output control circuit, Each of the expansion connection ports receives a serial communication (I2C) signal through connection with a detection element and provides the serial communication (I2C) signal to the microcontroller unit through a plurality of serial communication lines for the operation of the microcontroller unit. The microcontroller unit outputs a universal asynchronous receiver / transmitter (UART) signal and a general-purpose input / output (GPIO) signal for adjustment control, The data transmission line transmits a plurality of the universal asynchronous receiver / transmitter (UART) signals to an ultraviolet (UV) lamp device, at least one external control device, a wireless communication module, and a communication interface device, The input / output control circuit transmits the general-purpose input / output signals to the ultraviolet lamp device and the external control device, The wireless communication module receives the required DC voltage formed by converting the required DC voltage by the second voltage dividing line, and also receives the general-purpose asynchronous transmission and reception signal output by the microcontroller unit and the general-purpose input / output signal output by the microcontroller unit, and performs startup and reception of communication signals with the outside. The communication interface device receives the required DC voltage formed by converting the required DC voltage by the first voltage dividing line and the general-purpose asynchronous transmission and reception signal output by the microcontroller unit, and performs startup and communication connection. The ultraviolet lamp device receives the input of the AC voltage output by the AC power line and the general-purpose input / output signal output by the microcontroller unit, and performs startup and adjustment. The external control device receives the input of the AC voltage output by the AC power line, the input of the DC voltage formed by converting the required DC voltage by the first voltage dividing line, and the general-purpose asynchronous transmission and reception signal output by the microcontroller unit and the general-purpose input / output signal output by the microcontroller unit, and performs startup and adjustment. A control circuit of a gas detection module control device, characterized by the above.

2. The control circuit of the gas detection module control device according to claim 1, characterized in that the DC voltage converted by the first voltage dividing line is 5V.

3. The control circuit of the gas detection module control device according to claim 1, characterized in that the required DC voltage modulated and output by the second voltage dividing line is 3.3V.

4. The control circuit of the gas detection module control device according to claim 1, characterized in that the detection element is any one or a combination thereof of a particulate detection element and a volatile organic compound detection element.

5. The control circuit of the gas detection module control device according to claim 1, characterized in that the detection element is any one or a combination thereof of a temperature detection element and a carbon dioxide detection element.

6. The control circuit of the gas detection module control device according to claim 1, characterized in that the detection element is a formaldehyde detection element.

7. The detection element is any one or a combination thereof of a bacteria detection element, a fungus detection element, and a virus detection element, and the control circuit of the gas detection module control device according to claim 1 is characterized in that.

8. The detection element is one of an ozone (O ３ ) detection element and a carbon monoxide (CO) detection element, or a combination thereof, and is characterized in that it is a control circuit of the gas detection module control device according to claim 1.

9. The communication interface device is connected to a central control system via a communication control line for communication, and the control circuit of the gas detection module control device according to claim 1 is characterized in that it communicates using the RS485 communication protocol.

10. Comprising a plurality of external control devices, each external control device is connected to the input / output control circuit, and is characterized by comprising an address encoder for serially connecting and controlling the plurality of external control devices, and the control circuit of the gas detection module control device according to claim 1.

11. The external control device is a circulation filtration device, the circulation filtration device comprises a relay and a communication interface device, the relay outputs an AC voltage to a drive control element of the circulation filtration device by an electrical connection of the AC voltage output by the AC power line and an input of the general-purpose input / output signal output by the microcontroller unit to perform power control and regulation, and the communication interface device communicates with the drive control element via a communication control line by an input of the DC voltage formed by converting the required DC voltage by the first voltage division line and an input of the general-purpose asynchronous transmission / reception signal output by the microcontroller unit to control the wind speed of a fan of the circulation filtration device, and the control circuit of the gas detection module control device according to claim 1 is characterized in that it communicates using the RS485 communication protocol.

12. The ultraviolet lamp device comprises a relay, and the relay outputs an AC voltage to a power switch by an input of the AC voltage output by the AC power line and an input of the general-purpose input / output signal output by the microcontroller unit, and the power switch starts and adjusts an ultraviolet lamp, and the control circuit of the gas detection module control device according to claim 1 is characterized in that.

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