Air purifier control method and device

Abstract

The invention relates to the field of air purifiers, in particular to an air purifier control method and device.The air purifier control method comprises the steps that S1, the interior of a purification space is recognized through infrared thermal induction, and when it is recognized that no person exists in the purification space and the capacity of benzene series or formaldehyde in air exceeds a standard value, purification gas is released; s2, the temperature in the purification space is monitored in real time, and when the detected temperature does not reach a first threshold value, the temperature of the purification gas is increased so as to conduct heating operation on the purification space; and S3, detecting the reading of the concentration of the benzene series in the current environment through a benzene series detector, calculating a first temperature release value corresponding to the reading of the concentration of the benzene series in the current environment, and increasing the temperature of the purified gas according to the first temperature release value. The device and the method have the advantages that benzene series and formaldehyde can be accurately removed in a distinguishing manner, and the removal efficiency of the benzene series and the formaldehyde is improved.

Description

[Technical field]

[0001] The present invention relates to the field of air purifiers, and in particular to an air purifier control method and device. [Background technology]

[0002] Newly renovated houses often contain high concentrations of benzene and formaldehyde. Living in places with high concentrations of benzene and formaldehyde for a long time will cause irreparable damage to people's bodies, such as causing blood diseases such as leukemia.

[0003] In order to remove benzene and formaldehyde in the house, air purifiers are usually used. There are many different technologies and media in air purifiers, which enable it to provide clean and safe air to users. Commonly used air purification technologies include: adsorption technology, negative (positive) ion technology, catalytic technology, photocatalyst technology, super-structured light mineralization technology, HEPA high-efficiency filtration technology, electrostatic dust collection technology, etc.; material technologies mainly include: photocatalyst, activated carbon, synthetic fiber, HEAP high-efficiency material, negative ion generator, etc. Existing air purifiers are mostly composite, that is, they use multiple purification technologies and material media at the same time.

[0004] However, the optimal release temperatures of benzene and formaldehyde are different. Existing air purifiers are not accurate in removing benzene and formaldehyde. Moreover, benzene and formaldehyde will continue to evaporate and need to be removed periodically.

[0005] Therefore, a method and device for controlling an air purifier are proposed, which can accurately remove benzene and formaldehyde by differentiation, thereby improving the removal efficiency of benzene and formaldehyde. [Summary of the invention]

[0006] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an air purifier control method and device, which can accurately remove benzene and formaldehyde by differentiation, thereby improving the removal efficiency of benzene and formaldehyde.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] An air purifier control method, comprising:

[0009] S1: Identify the clean space through infrared thermal sensing. When it is identified that there is no person in the clean space and the benzene or formaldehyde content in the air exceeds the standard value, release the clean gas;

[0010] S2: real-time monitoring of the temperature in the purification space, when the detected temperature does not reach the first threshold, increasing the temperature of the purification gas to perform a temperature-raising operation on the purification space, and / or, when the detected temperature does not reach the second threshold, further increasing the temperature of the purification gas to perform a further temperature-raising operation on the purification space;

[0011] S3: detecting the current ambient BTEX concentration reading through a BTEX detector, calculating a first temperature release value corresponding to the current ambient BTEX concentration reading, and increasing the temperature of the purified gas according to the first temperature release value, and / or detecting the current ambient formaldehyde concentration reading through a formaldehyde detector, calculating a second temperature release value corresponding to the current ambient formaldehyde concentration reading, and increasing the temperature of the purified gas according to the second temperature release value;

[0012] Among them, the first temperature release value is: (current environment benzene concentration reading-preset benzene concentration target value) × benzene release coefficient ratio × current humidity value, and / or, the second temperature release value is: (current environment formaldehyde concentration reading-preset formaldehyde concentration target value) × formaldehyde release coefficient ratio × current humidity value.

[0013] Preferably, if the difference between the current environmental benzene concentration reading and the current environmental formaldehyde concentration reading is small, pre-purification is performed first, and the pre-purification temperature release value is calculated. The pre-purification temperature release value is: (second threshold value - first threshold value) × optimal release coefficient ratio × current humidity value.

[0014] Preferably, if the current reading of the benzene concentration in the environment differs greatly from the current reading of the formaldehyde concentration in the environment, the air is purified by circulating through S2 and S3.

[0015] As a preference, obtaining the current time period;

[0016] Determine the detector working mode according to the current time period. If it is a daytime time period, control the detector to work continuously according to a first preset working time period, stop working according to a first preset power-off time period, and perform a reciprocating control process of a first preset cycle per hour;

[0017] If it is a night time period, the detector is controlled to work continuously according to a second preset working time period, and to stop working according to a second preset power-off time period, and to perform a reciprocating control process of a second preset cycle every hour.

[0018] Preferably, if it is a daytime time period, the detector is controlled to work continuously according to a first preset working time period, and stops working according to a first preset power-off time period, and performs a reciprocating control process of a first preset cycle every hour. Specifically, the process includes: if it is a daytime time period, the detector is controlled to work continuously according to a time period of 1 minute to 40 minutes, and controls the detector to power off and stop working according to a time period of 50 minutes to 60 minutes, and performs a reciprocating control process of working for one cycle every hour.

[0019] Preferably, if the detected temperature exceeds the second threshold, a reminder message is issued and the purified gas is automatically cooled.

[0020] Preferably, the air purifier is turned on if the detected benzene and formaldehyde concentration parameters are higher than the standard values ​​and the changes in the benzene and formaldehyde concentration parameters show an upward trend.

[0021] Preferably, the air purifier is turned off if the detected benzene and formaldehyde concentration parameters are lower than the first threshold and the changes in the benzene and formaldehyde concentration parameters show a downward trend.

[0022] Preferably, the purge gas is water vapor.

[0023] An air purifier control device includes a sensing unit for identifying a purified space through infrared thermal sensing, and releasing purified gas when it is identified that there is no person in the purified space and the content of benzene or formaldehyde in the air exceeds a standard value;

[0024] A monitoring unit, for real-time monitoring of the temperature in the purification space, and when the detected temperature does not reach a first threshold, increasing the temperature of the purification gas to perform a temperature-raising operation on the purification space, or when the detected temperature does not reach a second threshold, further increasing the temperature of the purification gas to perform a further temperature-raising operation on the purification space;

[0025] A calculation unit is used to detect the current environmental BTEX concentration reading through a BTEX detector, calculate a first temperature release value corresponding to the current environmental BTEX concentration reading, and increase the temperature of the purified gas according to the first temperature release value, or to detect the current environmental formaldehyde concentration reading through a formaldehyde detector, calculate a second temperature release value corresponding to the current environmental formaldehyde concentration reading, and increase the temperature of the purified gas according to the second temperature release value.

[0026] The beneficial effects of the present invention are as follows:

[0027] 1. Detecting the current environmental BTEX concentration reading through a BTEX detector, calculating a first temperature release value corresponding to the current environmental BTEX concentration reading, and increasing the temperature of the purified gas according to the first temperature release value, and / or detecting the current environmental formaldehyde concentration reading through a formaldehyde detector, calculating a second temperature release value corresponding to the current environmental formaldehyde concentration reading, and increasing the temperature of the purified gas according to the second temperature release value;

[0028] Among them, the first temperature release value is: (current environment benzene concentration reading-preset benzene concentration target value) × benzene release coefficient ratio × current humidity value, and / or, the second temperature release value is: (current environment formaldehyde concentration reading-preset formaldehyde concentration target value) × formaldehyde release coefficient ratio × current humidity value.

[0029] For example, the current ambient BTEX concentration reading is 50, the preset BTEX concentration target value is 2, the BTEX release coefficient ratio is 0.3, and the current humidity value is 0.3. The first temperature release value = 48*0.3*0.2 = 2.88 degrees.

[0030] The current formaldehyde concentration reading is 30, the preset formaldehyde concentration target value is 0.1, the formaldehyde release coefficient ratio is 0.7, and the current humidity value is 0.3. The second temperature release value = 6.3 degrees.

[0031] When the indoor temperature rises to 30 degrees, the benzene series in the environment has been almost removed. The main purpose of continuing to rise is to remove formaldehyde, which is also the most difficult to remove and the most harmful to the human body. The current low humidity value is because the house is renovated in winter. In summer, the overall temperature is high and the humidity is high, while in winter, the temperature is low and the humidity is low. It is difficult for benzene series and formaldehyde to be emitted and hidden indoors. Living in this environment for a long time will cause irreversible damage to the health of indoor residents.

[0032] The present application has played a good role in improving the purification of indoor environments in winter or at low temperatures and low humidity, and has effectively solved the problem of difficult formaldehyde and benzene removal in indoor environments at low temperatures and low humidity.

[0033] 2. If the difference between the current environmental benzene concentration reading and the current environmental formaldehyde concentration reading is small, pre-purification is performed first, and the pre-purification temperature release value is calculated. The pre-purification temperature release value is: (second threshold value - first threshold value) × optimal release coefficient ratio × current humidity value.

[0034] For example, the second threshold is 60, the first threshold is 15, the optimal release coefficient ratio is 0.4, the current humidity value is 0.2, and the pre-purification temperature release value = 45*0.4*0.2 = 3.6 degrees. The pre-purification temperature release value is to carry out overall purification for a period of time, widen the concentration difference between formaldehyde and benzene series, facilitate separate identification and differentiated purification, improve the targeted purification, and improve the purification effect.

[0035] 3. If the detected benzene and formaldehyde concentration parameters are higher than the standard value and the change in the benzene and formaldehyde concentration parameters shows an upward trend, turn on the air purifier and set it to start automatically to free up manpower.

[0036] If the detected benzene and formaldehyde concentration parameters are lower than the first threshold and the changes in the benzene and formaldehyde concentration parameters show a downward trend, turn off the air purifier and set it to automatically shut down to free up manpower.

[0037] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings.

Brief Description of the Drawings

[0038] The present invention will be further described below in conjunction with the accompanying drawings:

[0039] Figure 1 This is a flow chart of Embodiment 1 of the present invention. [Specific implementation method]

[0040] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0041] The following first describes the concepts involved in this application in conjunction with the accompanying drawings. It should be noted that the following description of each concept is only to make the content of this application easier to understand and does not limit the scope of protection of this application.

[0042] Embodiment 1:

[0043] An air purifier control method, such as Figure 1 Shown, including

[0044] S1: Identify the clean space through infrared thermal sensing. When it is identified that there is no person in the clean space and the benzene or formaldehyde content in the air exceeds the standard value, release the clean gas;

[0045] S2: real-time monitoring of the temperature in the purification space, when the detected temperature does not reach the first threshold, increasing the temperature of the purification gas to perform a temperature-raising operation on the purification space, and / or, when the detected temperature does not reach the second threshold, further increasing the temperature of the purification gas to perform a further temperature-raising operation on the purification space;

[0046] Formaldehyde is generally released at 19 to 60 degrees. The boiling point of formaldehyde is 19 degrees Celsius, that is, when the temperature exceeds 19 degrees Celsius, the higher the temperature, the faster the formaldehyde hidden in the room evaporates. When the indoor temperature rises by 1°C, the volatilization rate of formaldehyde increases by 0.4 times.

[0047] The temperature range required for the removal of benzene series is 15°C-25°C. Therefore, the first threshold is smaller than the second threshold, the first threshold is 18, and the second threshold is 60. Of course, it can be adjusted according to the actual environment, first purifying benzene series and then purifying formaldehyde.

[0048] S3: detecting the current ambient BTEX concentration reading through a BTEX detector, calculating a first temperature release value corresponding to the current ambient BTEX concentration reading, and increasing the temperature of the purified gas according to the first temperature release value, and / or detecting the current ambient formaldehyde concentration reading through a formaldehyde detector, calculating a second temperature release value corresponding to the current ambient formaldehyde concentration reading, and increasing the temperature of the purified gas according to the second temperature release value;

[0049] Among them, the first temperature release value is: (current environment benzene concentration reading-preset benzene concentration target value) × benzene release coefficient ratio × current humidity value, and / or, the second temperature release value is: (current environment formaldehyde concentration reading-preset formaldehyde concentration target value) × formaldehyde release coefficient ratio × current humidity value.

[0050] For example, the current ambient BTEX concentration reading is 50, the preset BTEX concentration target value is 2, the BTEX release coefficient ratio is 0.3, and the current humidity value is 0.3. The first temperature release value = 48*0.3*0.2 = 2.88 degrees.

[0051] The current formaldehyde concentration reading is 30, the preset formaldehyde concentration target value is 0.1, the formaldehyde release coefficient ratio is 0.7, and the current humidity value is 0.3. The second temperature release value = 6.3 degrees.

[0052] When the indoor temperature rises to 30 degrees, the benzene series in the environment has been almost removed. The main purpose of continuing to rise is to remove formaldehyde, which is also the most difficult to remove and the most harmful to the human body. The current low humidity value is because the house is renovated in winter. In summer, the overall temperature is high and the humidity is high, while in winter, the temperature is low and the humidity is low. It is difficult for benzene series and formaldehyde to be emitted and hidden indoors. Living in this environment for a long time will cause irreversible damage to the health of indoor residents.

[0053] The present application has played a good role in improving the purification of indoor environments in winter or at low temperatures and low humidity, and has effectively solved the problem of difficult formaldehyde and benzene removal in indoor environments at low temperatures and low humidity.

[0054] If the difference between the current environmental benzene concentration reading and the current environmental formaldehyde concentration reading is small, pre-purification is performed first, and the pre-purification temperature release value is calculated. The pre-purification temperature release value is: (second threshold value - first threshold value) × optimal release coefficient ratio × current humidity value.

[0055] For example, the second threshold is 60, the first threshold is 15, the optimal release coefficient ratio is 0.4, the current humidity value is 0.2, and the pre-purification temperature release value = 45*0.4*0.2 = 3.6 degrees. The pre-purification temperature release value is to carry out overall purification for a period of time, widen the concentration difference between formaldehyde and benzene series, facilitate separate identification and differentiated purification, improve the targeted purification, and improve the purification effect.

[0056] If the current ambient BTEX concentration reading differs greatly from the current ambient formaldehyde concentration reading, the air is purified by circulating through S2 and S3.

[0057] Get the current time period;

[0058] Determine the detector working mode according to the current time period. If it is a daytime time period, control the detector to work continuously according to a first preset working time period, stop working according to a first preset power-off time period, and perform a reciprocating control process of a first preset cycle per hour;

[0059] If it is a night time period, the detector is controlled to work continuously according to a second preset working time period, and to stop working according to a second preset power-off time period, and to perform a reciprocating control process of a second preset cycle every hour.

[0060] It takes at least three months for formaldehyde to dissipate, and a period of circulation purification is required. This solves the current situation of real-time air quality detection through detectors. Since the detectors need to be in working condition regardless of whether the air quality changes, the technical problem of shortening the working life of the detectors is solved.

[0061] If it is a daytime time period, the detector is controlled to work continuously according to the first preset working time period, and stop working according to the first preset power-off time period, and reciprocating control processing of the first preset cycle every hour specifically includes: if it is a daytime time period, the detector is controlled to work continuously according to a time period of 1 minute to 40 minutes, and the detector is controlled to power off and stop working according to a time period of 50 minutes to 60 minutes, and reciprocating control processing of working for one cycle every hour.

[0062] When the air quality detected by the detector for three consecutive preset cycles is less than the preset threshold, the detector is controlled to work continuously for 1 to 2 minutes, and the detector is controlled to power off and stop working for 18 to 20 minutes, and the reciprocating control process of working for 3 cycles per hour is performed to reduce energy loss and be green and environmentally friendly.

[0063] If the detected temperature exceeds the second threshold, a reminder message is issued and the purified gas is automatically cooled to prevent the temperature from continuing to rise and the purified gas from causing damage to indoor furniture and walls.

[0064] If the detected benzene and formaldehyde concentration parameters are higher than the standard value and the changes in the benzene and formaldehyde concentration parameters show an upward trend, turn on the air purifier and set it to start automatically to free up manpower.

[0065] If the detected benzene and formaldehyde concentration parameters are lower than the first threshold and the changes in the benzene and formaldehyde concentration parameters show a downward trend, turn off the air purifier and set it to automatically shut down to free up manpower.

[0066] The purification gas is water vapor, or other chemical substances that can purify benzene or formaldehyde.

[0067] An air purifier control device includes a sensing unit for identifying a purified space through infrared thermal sensing, and releasing purified gas when it is identified that there is no person in the purified space and the content of benzene or formaldehyde in the air exceeds a standard value;

[0068] A monitoring unit, for real-time monitoring of the temperature in the purification space, and when the detected temperature does not reach a first threshold, increasing the temperature of the purification gas to perform a temperature-raising operation on the purification space, or when the detected temperature does not reach a second threshold, further increasing the temperature of the purification gas to perform a further temperature-raising operation on the purification space;

[0069] A calculation unit is used to detect the current environmental BTEX concentration reading through a BTEX detector, calculate a first temperature release value corresponding to the current environmental BTEX concentration reading, and increase the temperature of the purified gas according to the first temperature release value, or to detect the current environmental formaldehyde concentration reading through a formaldehyde detector, calculate a second temperature release value corresponding to the current environmental formaldehyde concentration reading, and increase the temperature of the purified gas according to the second temperature release value.

[0070] Those of ordinary skill in the art will appreciate that the units (or modules, steps, etc., the same below) of the examples described in conjunction with the embodiments disclosed herein can be implemented with electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition of each example has been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0071] In the embodiments provided by the present invention, it should be understood that the division of units is only a logical function division, and there may be other division methods in actual implementation, for example, multiple units can be combined into one unit, one unit can be split into multiple units, or some features can be ignored, etc.

[0072] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0073] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, server or network device, etc.) to perform all or part of the steps of the methods of each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-0nly Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk, etc., which can store program code.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. An air purifier control method, characterized in that: include S1: Identify the purified space through infrared thermal sensing. When it is identified that there is no person in the purified space and the content of benzene or formaldehyde in the air exceeds the standard value, release the purified gas; S2: monitoring the temperature in the purification space in real time, and when the detected temperature does not reach a first threshold, increasing the temperature of the purification gas to increase the temperature of the purification space, and / or, when the detected temperature does not reach a second threshold, further increasing the temperature of the purification gas to further increase the temperature of the purification space; S3: detecting the current ambient BTEX concentration reading through a BTEX detector, calculating a first temperature release value corresponding to the current ambient BTEX concentration reading, and increasing the temperature of the purified gas according to the first temperature release value, and / or detecting the current ambient formaldehyde concentration reading through a formaldehyde detector, calculating a second temperature release value corresponding to the current ambient formaldehyde concentration reading, and increasing the temperature of the purified gas according to the second temperature release value; Among them, the first temperature release value is: (the current environmental BTEX concentration reading - the preset BTEX concentration target value) × BTEX release coefficient ratio × the current humidity value, and / or, the second temperature release value is: (the current environmental formaldehyde concentration reading - the preset formaldehyde concentration target value) × formaldehyde release coefficient ratio × the current humidity value.

2. The air purifier control method according to claim 1, characterized in that: If the difference between the current environmental benzene concentration reading and the current environmental formaldehyde concentration reading is small, pre-purification is performed first, and the pre-purification temperature release value is calculated. The pre-purification temperature release value is: (second threshold value-first threshold value)×optimal release coefficient ratio×current humidity value.

3. The air purifier control method according to claim 1, characterized in that: If the current ambient BTEX concentration reading differs greatly from the current ambient formaldehyde concentration reading, the air is purified by circulating through S2 and S3.

4. The air purifier control method according to claim 1, characterized in that: Get the current time period; The detector working mode is determined according to the current time period. If it is a daytime time period, the detector is controlled to work continuously according to a first preset working time period, and stop working according to a first preset power-off time period, and performs reciprocating control processing for a first preset cycle every hour.

5. The air purifier control method according to claim 4, characterized in that: If it is a daytime time period, the detector is controlled to work continuously according to a first preset working time period, and stop working according to a first preset power-off time period, and reciprocating control processing of a first preset cycle per hour is performed. Specifically, if it is a daytime time period, the detector is controlled to work continuously according to a time period of 1 minute to 40 minutes, and the detector is controlled to power off and stop working according to a time period of 50 minutes to 60 minutes, and reciprocating control processing of working for one cycle per hour is performed.

6. The air purifier control method according to claim 1, characterized in that: If the detected temperature exceeds the second threshold, a reminder message is issued and the purified gas is automatically cooled.

7. The air purifier control method according to claim 1, characterized in that: If the detected benzene and formaldehyde concentration parameters are higher than the standard value and the change of benzene and formaldehyde concentration parameters shows an upward trend, turn on the air purifier.

8. The air purifier control method according to claim 1, characterized in that: If the detected benzene and formaldehyde concentration parameters are lower than the first threshold and the changes in the benzene and formaldehyde concentration parameters show a downward trend, turn off the air purifier.

9. The air purifier control method according to claim 1, characterized in that: The purge gas is water vapor.

10. An air purifier control device, characterized in that: include The sensing unit is used to identify the purification space through infrared thermal sensing, and release the purification gas when it is identified that there is no person in the purification space and the benzene or formaldehyde content in the air exceeds the standard value; A monitoring unit, for real-time monitoring of the temperature in the purification space, and when the detected temperature does not reach a first threshold, increasing the temperature of the purification gas to perform a temperature-raising operation on the purification space, or when the detected temperature does not reach a second threshold, further increasing the temperature of the purification gas to perform a further temperature-raising operation on the purification space; A calculation unit is used to detect the current environmental BTEX concentration reading through a BTEX detector, calculate a first temperature release value corresponding to the current environmental BTEX concentration reading, and increase the temperature of the purified gas according to the first temperature release value, or to detect the current environmental formaldehyde concentration reading through a formaldehyde detector, calculate a second temperature release value corresponding to the current environmental formaldehyde concentration reading, and increase the temperature of the purified gas according to the second temperature release value.

Images