CN111457504A - Air purifying device - Google Patents

Abstract

An embodiment of the present invention discloses an air purification device, which includes: an air quality detection module, which is used for detecting air index data; a control module, which is electrically connected to the air quality detection module and used for receiving and processing air quality The air index data collected by the detection module forms a control command; the air purification module is electrically connected with the control module, and is used for purifying the air according to the control command sent by the control module. It can be seen that the corresponding gas indicators are collected in real time by the air quality module, and the control module automatically controls the air purification module to purify the air according to whether the gas indicators collected by the air quality detection module exceed the standard. The detection module detects that the gas indicators are up to standard. The device can realize the effects of automatic monitoring of air, automatic purification control and improvement of purification efficiency in a low labor cost and efficient control manner.

Description

an air purification device

technical field

Embodiments of the present invention relate to the technical field of air purification, and in particular, to an air purification device.

Background technique

Hospitals, stations, shopping malls and other indoor public places, due to the relatively large mobility of personnel and poor air circulation, can easily lead to excessive concentrations of carbon dioxide, waste, and bacteria. Once the indicators of these gases exceed the standard, indoor personnel will inhale more harmful gases. pose a major safety hazard to their lives. It can be seen that in order to protect the life, health and safety of indoor personnel, it is particularly necessary to monitor and purify indoor air.

At present, hospitals, stations, shopping malls, and animal husbandry industries usually use manual time and fixed points to disinfect and purify the air.

Existing manual methods can achieve air purification control to a certain extent, but there are still deficiencies: manual operation has insufficient or excessive disinfection or purification, which consumes relatively large labor costs and is inefficient.

SUMMARY OF THE INVENTION

The invention provides an air purification device, which can realize automatic monitoring and purification control of air with low labor cost and high efficiency control.

An embodiment of the present invention provides an air purification device, the device comprising:

an air quality detection module, the air quality detection module is used to detect air index data;

a control module, electrically connected to the air quality detection module, for receiving and processing the air index data collected by the air quality detection module to form a control instruction;

The air purification module is electrically connected to the control module, and is used for purifying the air according to the control instruction sent by the control module.

Optionally, the air purification module includes a switch unit; a control end of the switch unit is electrically connected to the control module, and the switch unit is turned on or off according to the control instruction.

Optionally, the switch unit includes a relay, and the relay is electrically connected to the control module.

Optionally, the air purification module further includes a liquid storage bucket, a filter, a pump, an infusion tube and a spray head; the liquid storage bucket is connected to the pump through the switch unit, and the filter is arranged on the switch Between the unit and the pump, the pump and the spray head are connected through the infusion pipe.

Optionally, the air quality detection module includes a temperature and humidity sensor, a carbon monoxide sensor, a carbon dioxide sensor, a VOCS sensor and a dust particle sensor; the temperature and humidity sensor, carbon monoxide sensor, carbon dioxide sensor, VOCS sensor and dust particle sensor are all the same as the The control module is electrically connected.

Optionally, the air purification device further includes a first power supply module and a power supply circuit, the first power supply module is electrically connected to the power supply circuit, and the power supply circuit is respectively connected with the air quality detection module and the control system. The modules are electrically connected, and the power supply circuit is used for converting the voltage output by the first power supply module into the power supply voltage of the air quality detection module and the control module.

Optionally, the air purification device further includes a signal processing circuit, the signal processing circuit is electrically connected to the air quality detection module and the control module respectively, and the signal processing circuit is used to The air index data is processed and output to the control module.

Optionally, the air purification device further includes an input and output module and an alarm module, the input and output module is electrically connected to the control module, and the input and output module is used for inputting external commands or outputting data information; the alarm module is connected to the control module. The control module is electrically connected, and the alarm module is configured to issue an alarm signal according to an alarm instruction sent by the control module.

Optionally, the control module adopts a control chip of CC2530 series.

Optionally, the air purification device further includes a face recognition module, which is electrically connected to the control module and used for identifying personnel information and sending the identification result to the control module.

The present invention provides an air purification device, which comprises: an air quality detection module, which is used for detecting air index data; a control module, which is electrically connected with the air quality detection module and used for receiving and processing the air quality detection module The collected air index data forms a control command; the air purification module is electrically connected to the control module, and is used for purifying the air according to the control command sent by the control module. It can be seen that the corresponding gas indicators are collected in real time by the air quality module, and the control module automatically controls the air purification module to purify the air according to whether the gas indicators collected by the air quality detection module exceed the standard. The detection module detects that the gas indicators are up to standard. Solve the problems of insufficient or excessive purification, relatively large labor cost and low efficiency in the prior art, and realize the effect of automatic monitoring of air, automatic purification control and improvement of purification efficiency in a low labor cost and efficient control manner. .

Description of drawings

Fig. 1 is the structural block diagram of a kind of air purification device in the embodiment of the present invention;

FIG. 2 is a structural block diagram of another air purification device in an embodiment of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, the drawings only show some but not all structures related to the present invention.

1 is a structural block diagram of an air purification device provided by an embodiment of the present invention. Referring to FIG. 1 , the device includes:

Air quality detection module 100, the air quality detection module 100 is used to detect air index data;

The control module 200 is electrically connected with the air quality detection module 100, and is used for receiving and processing the air index data collected by the air quality detection module 100 to form a control instruction;

The air purification module 300 is electrically connected to the control module 200 and is used for purifying the air according to the control instruction sent by the control module 200 .

Among them, the air quality detection module 100 and the air purification module 300 are installed in the location of the indoor environment that needs to be detected and purified, such as hospitals, stations, shopping malls, etc. The number of air quality detection modules 100 and air purification modules 300 may be one or more, and the number may be set according to actual needs, which is not specifically limited here.

In the technical solution of this embodiment, the implementation process of the air purification device is as follows: the air quality detection module 100 is set at the position where the air quality needs to be detected, the air quality detection module 100 detects the air index data of the indoor air in real time, and detects the air quality of the indoor air. The result is sent to the control module 200 in real time, and the control module 200 receives the air index data detected by the air quality detection module 100 in real time, and compares the detected air index data with the corresponding gas index. Once the air index data does not meet the corresponding gas index At this time, the control module 200 sends a control instruction to the air purification module 300, and the air purification module 300 purifies the air according to the control instruction. During the whole control process, the air quality detection module 100 is always in a real-time detection state and sends the collected air index data to the control module 200. When the air index data received by the control module 200 conforms to the corresponding air index, the control module 200 Sending a control instruction to the air purification module 300 causes the air purification module 300 to stop purifying the air. Therefore, the air quality detection module 100, the control module 200 and the air purification module 300 can automatically detect, control and purify the air quality in real time, realize automatic and uniform spraying, and improve the purification efficiency, thereby ensuring that the air quality of the corresponding place meets the air quality. indicators to ensure the health and safety of indoor personnel.

The air indicator data may include a plurality of air indicator data. Exemplarily, the air indicator data may include carbon monoxide content, carbon dioxide content, temperature, air humidity, dust or dust particle content, VOCS content, and the like. Different air index data is compared with its corresponding air index, and the number of air index data exceeding the standard and the control command sent by the control module 200 can be set according to actual needs. For example, when any air indicator data exceeds the standard, such as carbon monoxide content, carbon dioxide content, temperature, air humidity, dust or dust particle content, VOCS content, etc., when any one of the content exceeds the standard, the control module 200 can send the air purification module to the 300 sends a control command. Alternatively, when multiple air index data exceeds the standard, the control module 200 may send a control instruction to the air purification module 300 . Alternatively, when a certain air index data exceeds the standard, the control module 200 sends a control instruction to the air purification module 300 .

The technical solution of this embodiment provides an air purification device, the device includes: an air quality detection module, the air quality detection module is used to detect air index data; a control module is electrically connected to the air quality detection module for receiving and processing The air index data collected by the air quality detection module forms a control command; the air purification module is electrically connected with the control module, and is used for purifying the air according to the control command sent by the control module. It can be seen that the corresponding gas indicators are collected in real time by the air quality module, and the control module automatically controls the air purification module to purify the air according to whether the gas indicators collected by the air quality detection module exceed the standard. The detection module detects that the gas indicators are up to standard. It solves the problems of insufficient or excessive purification, relatively large labor cost and low efficiency in the prior art, and achieves automatic monitoring of air, automatic purification control and improvement of purification efficiency with low labor cost and efficient control. Effect.

FIG. 2 is another air purification device provided in an embodiment of the present invention. Referring to FIG. 2, the air purification module 300 includes a switch unit 310; the control end of the switch unit 310 is electrically connected to the control module 200, and the switch unit 310 is turned on according to a control instruction or off.

Wherein, the control module 200 sends a control command to the air purification module 300 to control the air purification module 300 to start or stop the purification process of the air by sending a control signal to the control terminal of the switch unit 310, such as sending a level signal, to control the switch unit 310 to open or closure. When the switch unit 310 is turned on, the air purification module 300 starts the air purification process, and when the switch unit 310 is turned off, the air purification module 300 stops the air purification process.

Optionally, the switch unit 310 includes a relay, and the relay is electrically connected to the control module 200 .

The relay may be a normally open contact type switch.

Optionally, continuing to refer to FIG. 2 , the air purification module 300 further includes a liquid storage bucket 320, a filter 330, a pump 340, a liquid infusion tube 360 and a spray head 350; the liquid storage bucket 320 is connected to the pump 340 through the switch unit 310, and the filter 330 It is arranged between the switch unit 310 and the pump 340 , and the pump 340 and the spray head 350 are connected through the infusion pipe 360 .

Among them, the filter 330 is used to filter large suspended particles and the like that may exist in the liquid stored in the liquid storage bucket 320 .

The specific process for the control module 200 to control the air purification module 300 is as follows: in the initial state, the normally open contact of the relay is disconnected. The air quality detection module 100 detects the air index data of the indoor air in real time, and sends the detection result to the control module 200 in real time. The corresponding gas indicators are compared. When the air quality detected by the air quality detection module 100 is not up to the standard, the control module 200 sends a control command to the air purification module 300 to control the air purification module 300 to start purifying the air, and the coil of the relay is energized. , after the coil is energized, the normally open contact of the relay is closed, and the normally open contact is closed so that the pump 340 is turned on and the disinfectant or purifying agent in the liquid storage tank 320 is drawn out, and reaches the nozzle 350 through the infusion tube 360, and the nozzle 350 Spray, the sprayed disinfectant can purify the air. At this time, the air quality detection module 100 continues to detect the air quality. When it is detected that the air quality reaches the standard, the control module 200 sends a control command to the air purification module 300 to control the air purification module 300 to stop the air purification process. When the relay coil is de-energized and normally open The contact is disconnected, the pump 340 is turned off, and the disinfectant or purifying agent in the liquid storage tank 320 cannot be drawn out, thereby stopping the air purification treatment. On the basis of avoiding the waste of purifiers or disinfectants.

2, the air quality detection module 100 includes a temperature and humidity sensor 110, a carbon monoxide sensor 130, a carbon dioxide sensor 120, a VOCS sensor 150 and a dust particle sensor 140; a temperature and humidity sensor 110, a carbon monoxide sensor 130, a carbon dioxide sensor 120, Both the VOCS sensor 150 and the dust particle sensor 140 are electrically connected to the control module 200 .

The temperature and humidity sensor 110 may be a digital temperature and humidity sensor, such as a DHT11 temperature and humidity sensor, for detecting the temperature and humidity of the air. The carbon monoxide sensor 130 can be an ME2-CO carbon monoxide sensor, a carbon monoxide transmitter, etc.; wherein, the carbon monoxide transmitter adopts electrochemical technology to measure the CO concentration, and the response is fast and sensitive. Transmitters are widely used in air quality detection, smart home and other occasions where CO detection is required. The carbon dioxide sensor 120 can be an MG811 carbon dioxide sensor, which has a wide measurement range and high measurement accuracy. The dust particle sensor 140 may be a dust particle sensor DSM501, an outdoor PM2.5 sensor/transmitter GC-PM2.5, a dust particle detection laser sensor, a PD4NS particle concentration sensor, a METONE3400 air bacteria counter, and the like.

The working principle of the VOCS sensor 150 is: the gas sensing material used is tin dioxide with low conductivity in clean air. When there is VOCs gas in the environment where the sensor is located, the conductivity of the sensor varies with the concentration of VOCs gas in the air. The change of conductivity can be converted into an output signal corresponding to the gas concentration by using a simple circuit, and the VOCs gas sensor can have good sensitivity to VOCs gas in a wide concentration range. The VOCS sensor 150 may be a VOCs sensor city gas sensor, an MS1100 type VOCS sensor, a TGS2602 type VOCS sensor, and the like.

Optionally, continuing to refer to FIG. 2 , the air purification device further includes a first power supply module 410 and a power supply circuit 420 , the first power supply module 410 is electrically connected to the power supply circuit 420 , and the power supply circuit 420 is respectively connected to the air quality detection module 100 . Electrically connected to the control module 200 , the power supply circuit 420 is configured to convert the voltage output by the first power supply module 410 into the power supply voltage of the air quality detection module 100 and the control module 200 .

Wherein, the first power module 410 can obtain power from a device power source or a conventional DC power source. The power supply circuit 420 may include a high-low level conversion circuit and a boost circuit, and may boost or step down the voltage output by the first power module 410 according to the actual voltage requirements of the air quality detection module 100 and the control module 200 to meet the air quality requirements The power supply voltage of the detection module 100 and the control module 200 is detected. For example, assuming that the output voltage of the first power supply module 410 is 5V, and the power supply voltage of the control module 200 is 3.3V, in order to meet the power supply demand of the control module 200 of 3.3V, the high-low level conversion circuit of the power supply circuit 420 can be used to convert the first The 5V voltage output by a power supply module 410 is converted into 3.3V and output to the control module 200 ; assuming that the power supply voltage of the air quality detection module 100 is 12V, the 5V output voltage of the first power supply module 410 can be converted by the booster circuit of the power supply circuit 420 The voltage is boosted to 12V and output to the air quality detection module 100 . Optionally, continuing to refer to FIG. 2 , the air purification device further includes a signal processing circuit 430 , the signal processing circuit 430 is electrically connected to the air quality detection module 100 and the control module 200 respectively, and the signal processing circuit 430 is used for the air quality detection module 100 The provided air index data is processed and output to the control module 200 .

The signal processing circuit 430 may include a filter circuit and a high-low level conversion circuit, and the filter circuit is used to filter out interference information existing in the data information collected by the sensor, so as to ensure the accuracy and stability of the sensor information data.

Optionally, continue to refer to FIG. 2, the air purification device further includes an input and output module 440 and an alarm module 450, the input and output module 440 is electrically connected with the control module 200, and the input and output module 440 is used for inputting external commands or outputting data information; alarm; The module 450 is electrically connected with the control module 200 , and the alarm module 450 is configured to issue an alarm signal according to an alarm instruction sent by the control module 200 .

The input and output module 440 is used for inputting external commands or outputting data information, and the data information includes air index data collected by the air quality detection module 100, such as the temperature and humidity sensor 110, the carbon monoxide sensor 130, the carbon dioxide sensor 120, the VOCS sensor 150 and dust particles Corresponding gas content data collected by the sensor 140 in real time, as well as data information such as standard gas indicators conforming to human health and safety. The input and output module 440 may include a display screen, a keyboard or keys, etc., and the display screen is used to display the gas content value collected by each sensor, the standard gas index value, and the like. Keys or keyboards are used for device startup, settings or interface browsing, etc. The power of the display screen, the keyboard or the keys, etc. may be provided by the first power supply module 410, or may be provided by other power supply modules. In addition, the control module can also communicate with the APP of the mobile phone and other clients through remote communication. Therefore, the APP of the client can input commands through remote communication to control the work of the air purification module, or receive information such as display and alarm sent by the control module through remote communication. Realize display and alarm.

Optionally, the control module adopts the control chip of CC2530 series.

Among them, the CC2530 series control chip can be used as a system-on-chip (SOC) for 2.4G, ZigBee and RF4CE applications, with integrated leading RF transceiver performance, enhanced 8051CPU, suitable for low-power system requirements.

Optionally, continuing to refer to FIG. 2 , the air purification device further includes a face recognition module 460 , which is electrically connected to the control module 200 for identifying personnel information and sending the identification result to the control module 200 .

The face recognition module 460 may use a camera. The face recognition module 460 can be used in densely populated areas such as train stations or hospitals. With face recognition cameras, it can analyze and count the flow of people, personnel performance and age division, and the number of occurrences of individual personnel, and then cooperate with the blacklist of the public security system. Criminals can be caught automatically. To achieve big data analysis and processing, environmental purification and sterilization.

Note that the above are only preferred embodiments of the present invention and applied technical principles. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the present invention. The scope is determined by the scope of the appended claims.

Claims (10)

1. an air purifying device, is characterized in that, comprises: an air quality detection module, the air quality detection module is used to detect air index data; a control module, electrically connected to the air quality detection module, for receiving and processing the air index data collected by the air quality detection module to form a control instruction; The air purification module is electrically connected to the control module, and is used for purifying the air according to the control instruction sent by the control module. 2 . The air purification device according to claim 1 , wherein the air purification module comprises a switch unit; a control end of the switch unit is electrically connected to the control module, and the switch unit is based on the control instruction. 3 . On or off. 3 . The air purification device according to claim 2 , wherein the switch unit comprises a relay, and the relay is electrically connected to the control module. 4 . 4. The air purification device according to claim 2, wherein the air purification module further comprises a liquid storage bucket, a filter, a pump, an infusion pipe and a spray head; the liquid storage bucket passes through the switch unit and the The filter is arranged between the switch unit and the pump, and the pump and the spray head are connected through the infusion pipe. 5. The air purification device according to claim 1, wherein the air quality detection module comprises a temperature and humidity sensor, a carbon monoxide sensor, a carbon dioxide sensor, a VOCS sensor and a dust particle sensor; the temperature and humidity sensor, carbon monoxide sensor, The carbon dioxide sensor, the VOCS sensor and the dust particle sensor are all electrically connected to the control module. 6 . The air purification device according to claim 1 , further comprising a first power supply module and a power supply circuit, the first power supply module is electrically connected to the power supply circuit, and the power supply circuit is respectively connected to the power supply circuit. 7 . The air quality detection module and the control module are electrically connected, and the power supply circuit is configured to convert the voltage output by the first power supply module into a power supply voltage of the air quality detection module and the control module. 7 . The air purification device according to claim 1 , further comprising a signal processing circuit, the signal processing circuit is electrically connected to the air quality detection module and the control module respectively, and the signal processing circuit uses the The air index data provided by the air quality detection module is processed and output to the control module. 8. The air purification device according to claim 1, further comprising an input and output module and an alarm module, the input and output module is electrically connected with the control module, and the input and output module is used for inputting external commands or outputting data information; the alarm module is electrically connected with the control module, and the alarm module is used for sending an alarm signal according to an alarm instruction sent by the control module. 9 . The air purification device according to claim 1 , wherein the control module adopts a control chip of CC2530 series. 10 . 10. The air purification device according to claim 1, further comprising a face recognition module, which is electrically connected to the control module for recognizing personnel information and sending the recognition result to all the control module.

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