WO2024045659A1

WO2024045659A1 - Hepa dirt detection method and apparatus

Info

Publication number: WO2024045659A1
Application number: PCT/CN2023/090774
Authority: WO
Inventors: 刘光朋; 石衡
Original assignee: 青岛海尔空调器有限总公司; 青岛海尔空调电子有限公司; 海尔智家股份有限公司
Priority date: 2022-08-31
Filing date: 2023-04-26
Publication date: 2024-03-07
Also published as: CN115355597A

Abstract

An HEPA dirt detection method and apparatus, the method comprising: when an air conditioner works normally, acquiring the air speed of an air inlet and the air speed of an air outlet of a high efficiency particulate air filter (HEPA) of the air conditioner; according to the air speed of the air inlet and the air speed of the air outlet, determining whether the HEPA is dirty; if the HEPA is dirty, after starting an air conditioner purification function, acquiring the content of harmful substances at the air inlet and the content of harmful substances at the air outlet of the HEPA; according to the content of harmful substances at the air inlet and the content of harmful substances at the air outlet, determining whether the HEPA needs to be cleaned; and when the HEPA needs to be cleaned, sending to a target user first cleaning reminding information. The present invention can automatically detect whether an HEPA is dirty and determine whether the HEPA needs to be cleaned, and if the HEPA needs to be cleaned, sends to a target user first cleaning reminding information; therefore, the target user can clean the HEPA in time, thereby having better user experience.

Description

A HEPA net dirt detection method and device

This application is filed based on a Chinese patent application with application number 202211061798.1 and a filing date of August 31, 2022, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby incorporated into this application as a reference.

Technical field

The present application relates to the field of air conditioning, and in particular to a HEPA net dirt detection method and device.

Background technique

The High Efficiency Particulate Air Filter (HEPA) in the air conditioner has the function of filtering harmful substances in the outdoor airflow to purify the indoor air. After the air conditioner is used for a long time, a large amount of dust, particles and other harmful substances will remain in the HEPA net, which needs to be cleaned in time.

Since the HEPA net is usually installed inside the air conditioner, its dirt cannot be observed with the naked eye. Currently, the HEPA net is usually disassembled and cleaned by users voluntarily or according to the cleaning cycle. As a result, the cleaning is not timely and the user experience is poor.

Contents of the invention

In view of this, this application provides a HEPA net dirt detection method and device to solve the problem of untimely cleaning caused by users voluntarily or according to the cleaning cycle when disassembling and cleaning the HEPA net. The technical solution is as follows:

A method for detecting HEPA network contamination, including:

When the air conditioner is running normally, obtain the air inlet wind speed and air outlet wind speed of the air conditioner's high-efficiency air filtration HEPA network. The air inlet wind speed refers to the average or actual wind speed of the air inlet wind speed collected within the set time period. The wind speed at the air outlet refers to the average wind speed at the air outlet or the actual value of the wind speed collected within a set period of time;

Determine whether the HEPA net is dirty based on the air inlet wind speed and air outlet wind speed;

If the HEPA net is dirty, after turning on the air conditioning purification function, obtain the harmful substance content of the air inlet and the harmful material content of the air outlet of the HEPA net;

Based on the content of harmful substances in the air inlet and the harmful substances in the air outlet, determine whether the HEPA net needs to be cleaned;

When the HEPA network needs to be cleaned, a first cleaning reminder message is sent to the target user, where the first cleaning reminder message is used to remind the target user to clean the HEPA network.

Optionally, determine whether the HEPA net is dirty based on the air inlet wind speed and air outlet wind speed, including:

Calculate the difference between the air inlet wind speed and the air outlet wind speed, and the obtained difference is used as the wind speed difference;

If the wind speed difference is less than the preset wind speed threshold, it is determined that the HEPA net is not dirty; otherwise, it is determined that the HEPA net is dirty.

Optional, determine whether the HEPA net needs to be cleaned based on the content of harmful substances in the air inlet and the harmful substances in the air outlet, including:

If the content of harmful substances in the air inlet is greater than or equal to the preset first content threshold, and the content of harmful substances in the air outlet is greater than or equal to the preset second content threshold, it is determined that the HEPA net needs to be cleaned;

And/or, if the content of harmful substances in the air inlet is less than or equal to the content of harmful substances in the air outlet, it is determined that the HEPA net needs to be cleaned.

Optionally, send the first cleaning reminder message to the target user, including:

The first cleaning reminder information is sent to the target user through an application program matched with the air conditioner, and/or the first cleaning reminder information is sent to the target user through a voice module set on the air conditioner.

Optional, also includes:

In response to the user's cleaning instructions, the HEPA network is automatically cleaned.

Optional, automatic cleaning of HEPA net, including:

The automatic cleaning program is used to control the fan reversal of the air conditioner to automatically clean the HEPA network.

Optional, also includes:

After the HEPA net is automatically cleaned, the air inlet wind speed and air outlet wind speed of the HEPA net are collected again;

Based on the air inlet wind speed and air outlet wind speed collected again, determine whether the HEPA net has been cleaned;

If not, a second cleaning reminder message is sent to the target user, where the second cleaning reminder message is used to remind the target user to disassemble and clean the HEPA network.

Optional, also includes:

Detect whether feedback information from the target user regarding the second cleaning reminder information is received within the target time period;

If not, turn off the automatic cleaning process.

A HEPA network dirt detection device, including:

The wind speed acquisition module is used to obtain the air inlet wind speed and air outlet wind speed of the high-efficiency air filter HEPA network of the air conditioner when the air conditioner is operating normally. The air inlet wind speed refers to the average air inlet wind speed collected within the set time period. Or the actual value of the wind speed. The outlet wind speed refers to the average value of the outlet wind speed or the actual value of the wind speed collected within the set time period;

The initial dirt inspection module is used to determine whether the HEPA net is dirty based on the air inlet wind speed and the air outlet wind speed;

The harmful substance content acquisition module is used to obtain the harmful substance content of the air inlet and the harmful substance content of the air outlet of the HEPA network after turning on the air conditioning purification function if the HEPA network is dirty;

The dirt re-inspection module is used to determine whether the HEPA net needs to be cleaned based on the content of harmful substances in the air inlet and the content of harmful substances in the air outlet;

The cleaning reminder module is used to send a first cleaning reminder message to the target user when the HEPA network needs to be cleaned, where the first cleaning reminder message is used to remind the target user to clean the HEPA network.

Optional, the dirt re-inspection module is specifically used for:

If the content of harmful substances in the air inlet is less than or equal to the preset first content threshold, and the content of harmful substances in the air outlet is less than or equal to the preset second content threshold, it is determined that the HEPA net needs to be cleaned;

And/or, if the content of harmful substances in the air inlet is less than the content of harmful substances in the air outlet, it is determined that the HEPA net needs to be cleaned.

It can be seen from the above technical solution that the HEPA net dirt detection method provided by this application can obtain the air inlet wind speed and air outlet wind speed of the high-efficiency air filter HEPA net of the air conditioner when the air conditioner is operating normally, and based on the air inlet wind speed and the air outlet wind speed to determine whether the HEPA net is dirty. If the HEPA net is dirty, after turning on the air conditioning purification function, obtain the harmful substance content of the air inlet and the harmful substance content of the air outlet of the HEPA net, and based on the harmful substance content of the air inlet and The content of harmful substances in the air outlet determines whether the HEPA network needs to be cleaned. When the HEPA network needs to be cleaned, the first cleaning reminder message is sent to the target user. This application can automatically detect whether the HEPA network is dirty and needs to be cleaned. When the HEPA network needs cleaning, it will send the first cleaning reminder message to the target user, so that the target user can clean the HEPA network in time, and the user experience is better.

Description of drawings

In order to explain the embodiments of the present application or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only This is an embodiment of the present application. For those of ordinary skill in the art, other drawings can be obtained based on the provided drawings without exerting creative efforts.

Figure 1 is a schematic flow chart of a HEPA network contamination detection method provided by an embodiment of the present application;

Figure 2 is a schematic flow chart of another HEPA network contamination detection method provided by an embodiment of the present application;

Figure 3 is a schematic structural diagram of the HEPA network dirt detection device provided by the embodiment of the present application;

Figure 4 is a hardware structure block diagram of the HEPA network dirt detection device provided by the embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in this application, all other practical results obtained by those of ordinary skill in the art without creative efforts are Examples all belong to the protection scope of this application.

In view of the problems existing in the prior art, the inventor of this case conducted in-depth research and finally proposed a HEPA network contamination detection method. Next, the HEPA network contamination detection method provided by this application will be introduced in detail through the following examples.

Please refer to Figure 1, which shows a schematic flow chart of a HEPA network dirt detection method provided by an embodiment of the present application. The HEPA network dirt detection method may include:

Step S101: When the air conditioner is operating normally, obtain the air inlet wind speed and air outlet wind speed of the high-efficiency air filter HEPA network of the air conditioner.

When the air conditioner is operating normally, outdoor air can enter from the air inlet and enter the room through the HEPA net and air outlet. Considering that harmful substances attached to the HEPA net will have a certain hindering effect on the wind speed, causing the wind speed passing through the HEPA net to decrease, optionally, this step can collect the actual values of the air inlet wind speed and the actual outlet wind speed of the HEPA net. The actual values of the air inlet wind speed and the actual air outlet wind speed can be used as the air inlet wind speed and the air outlet wind speed obtained in this step.

Preferably, in order to avoid misjudgments caused by unstable wind speed, this step can collect the air inlet wind speed and the air outlet wind speed within a set time period, and then calculate the average value of the air inlet wind speed within the set time period as the air inlet obtained in this step. Wind speed, and calculate the average outlet wind speed within the set time period as the outlet wind speed obtained in this step.

Optionally, the set duration can be several seconds or tens of seconds.

Optionally, at least one wind speed sensor can be installed at the air inlet and outlet of the air conditioner to collect the air inlet wind speed and the air outlet wind speed.

Step S102: Determine whether the HEPA net is dirty based on the air inlet wind speed and the air outlet wind speed.

Optionally, this step can calculate the difference between the air inlet wind speed and the air outlet wind speed to obtain the wind speed difference, and then determine whether the HEPA net is dirty based on the wind speed difference. Specifically, if the wind speed difference is less than the preset wind speed threshold , it is determined that the HEPA net is not dirty. If the wind speed difference is greater than or equal to the wind speed threshold, it is determined that the HEPA net is dirty.

Of course, the method of determining whether the HEPA net is dirty based on the wind speed difference is only an optional implementation method of this step. In addition, this step can also further consider the air inlet wind speed and the air inlet wind speed threshold, as well as the air outlet wind speed. and outlet wind speed threshold to determine whether the HEPA net is dirty, etc. This application does not limit this.

Step S103: If the HEPA net is dirty, after turning on the air conditioning purification function, obtain the harmful substance content of the air inlet and the harmful material content of the air outlet of the HEPA net.

It is worth noting that just because the HEPA net is dirty, it does not mean that the HEPA net must be cleaned. For example, although harmful substances are attached to the HEPA net, but the dirt is not serious, the HEPA net can still effectively filter harmful substances. In this case, there is no need to clean the HEPA net. Clean the HEPA net immediately, but you can wait for a period of time until the HEPA net reaches the level that needs cleaning before cleaning.

In this step, when the HEPA net is dirty, you can turn on the air conditioner purification function. After turning on the air conditioner purification function, outdoor air enters from the air inlet and is filtered through the HEPA net to remove dust, particles and other harmful substances in the outdoor air. , entering the room through the air outlet. However, if the harmful substances attached to the HEPA net reach a certain amount, the filtering function (i.e. purification function) of the HEPA net will fail, resulting in a high indoor content of harmful substances and failure to achieve the purification function. Therefore, this step can obtain the content of harmful substances in the air inlet and the content of harmful substances in the air outlet after turning on the air conditioner purification function, so that subsequent steps can determine whether the HEPA net needs to be cleaned based on the content of harmful substances in the air inlet and the content of harmful substances in the air outlet.

Optionally, a harmful substance collection sensor (such as a PM2.5/TVOC sensor) can be installed at the air purification outlet. The harmful substance content in the air outlet can be collected through the sensor at the air purification outlet. At the same time, the harmful substance collection sensor that comes with the air conditioner ( For example, PM2.5/TVOC sensor) collects the content of harmful substances in the air inlet.

Step S104: Determine whether the HEPA net needs to be cleaned based on the content of harmful substances in the air inlet and the content of harmful substances in the air outlet.

The process of this step includes multiple implementation methods. Here are provided but not limited to the following three implementation methods.

The first implementation method: If the content of harmful substances in the air inlet is greater than or equal to the preset first content threshold, and the content of harmful substances in the air outlet is greater than or equal to the preset second content threshold, it is determined that the HEPA network needs to be cleaned. Here, the first content threshold and the second content threshold may be the same or different.

Specifically, the content of harmful substances in the air inlet can represent the content of harmful substances outdoors, and the content of harmful substances in the air outlet can represent the content of harmful substances indoors.

Theoretically, when the content of harmful substances outdoors is high, after filtering the harmful substances through the HEPA network, the content of harmful substances indoors should be relatively low. However, if the filtering function of the HEPA network fails, the content of harmful substances in the room will be high. Based on this, this step can compare the content of harmful substances in the air inlet with the first content threshold. If the content of harmful substances in the air inlet is greater than or equal to the first content, In the case of a threshold, the content of harmful substances in the air outlet is compared with the second content threshold. If the content of harmful substances in the air outlet is greater than or equal to the second content threshold, it can be determined that the HEPA net is relatively dirty and has reached the level that needs to be cleaned. At this point it is determined that the HEPA net needs cleaning.

The second implementation method: If the content of harmful substances in the air inlet is less than or equal to the content of harmful substances in the air outlet, it is determined that the HEPA network needs to be cleaned.

Specifically, in theory, after filtering harmful substances through the HEPA network, the content of harmful substances indoors should be lower than the content of harmful substances outdoors. However, if the filtering function of the HEPA net fails, when the outdoor air enters the room through the HEPA net, some of the harmful substances attached to the HEPA net may be brought into the room, causing the indoor harmful substance content to be higher than the outdoor harmful substance content. Based on this, this step The content of harmful substances in the air inlet can be compared with the content of harmful substances in the air outlet. If the content of harmful substances in the air inlet is less than the content of harmful substances in the air outlet, it means that the HEPA net is dirty and has reached the level that needs to be cleaned. At this time, it is determined that the HEPA net needs to be cleaned. .

The third implementation method: determine whether the content of harmful substances in the air inlet is less than the first content threshold, and whether the content of harmful substances in the air outlet is less than the second content threshold, if the content of harmful substances in the air inlet is greater than or equal to the first content threshold, and the air outlet is harmful If the substance content is greater than or equal to the second content threshold, it is determined whether the harmful substance content at the air inlet is less than or equal to the harmful substance content at the air outlet. If so, it is determined that the HEPA net needs to be cleaned.

Specifically, when the content of harmful substances in the air inlet is greater than or equal to the first content threshold, and the content of harmful substances in the air outlet is greater than or equal to the second content threshold, it is necessary to further determine whether the content of harmful substances in the air inlet is less than or equal to the content of harmful substances in the air outlet. , if so, it means that the HEPA net is relatively dirty and has lost its purification function. At this time, the HEPA net must be cleaned. Therefore, it is determined that the HEPA net needs to be cleaned. On the contrary, if it is further determined that the content of harmful substances in the air inlet is greater than the content of harmful substances in the air outlet, It is believed that the HEPA network still has a purification effect and can only remind target users.

Optionally, in this third implementation, when the content of harmful substances in the air inlet is less than the first content threshold, and/or the content of harmful substances in the air inlet is less than the second content threshold, it can be considered that although the HEPA net is dirty , but the impact on indoor air quality is small, and you can only remind the target users (the target users can not do the cleaning temporarily, or clean according to their own needs).

Step S105: When the HEPA network needs cleaning, send the first cleaning reminder message to the target user.

Among them, the first cleaning reminder message is used to remind the target user to clean the HEPA network.

Optionally, this step can send the first cleaning reminder information to the target user through an application program matched with the air conditioner, and/or send the first cleaning reminder information to the target user through a voice module set on the air conditioner.

Of course, this step can also use other methods to remind the target user, which is not specifically limited in this embodiment.

The HEPA net dirt detection method provided by this application obtains the air inlet wind speed and air outlet wind speed of the high-efficiency air filtration HEPA net of the air conditioner when the air conditioner is operating normally, and determines the HEPA based on the air inlet wind speed and air outlet wind speed. Whether the HEPA net is dirty. If the HEPA net is dirty, after turning on the air conditioning purification function, obtain the harmful substance content of the air inlet and the harmful material content of the air outlet of the HEPA net, and determine based on the harmful substance content of the air inlet and the air outlet. Whether the HEPA network needs to be cleaned. When the HEPA network needs to be cleaned, the first cleaning reminder message is sent to the target user. This application can automatically detect whether the HEPA network is dirty and needs to be cleaned. When the HEPA network needs cleaning, it will send the first cleaning reminder message to the target user, so that the target user can clean the HEPA network in time, and the user experience is better.

In a possible implementation, the HEPA network contamination detection method provided in this embodiment may also include the following step S106.

Step S106: Respond to the user's cleaning instruction and automatically clean the HEPA network.

Optionally, the process of this step may include: using an automatic cleaning program to control the fan reversal of the air conditioner to automatically clean the HEPA network.

Specifically, the air conditioner can pre-store an automatic cleaning program. When the user receives the first cleaning reminder message, the user can send a cleaning instruction. Then the air conditioner can control the motor to reverse based on the pre-stored automatic cleaning program and blow the wind outward to facilitate cleaning. HEPA net performs automatic cleaning.

Considering that the cleaning method of fan reversal is more suitable for situations where the HEPA net is not very dirty, when the HEPA net is very dirty, the fan reversal cleaning method may not be able to clean it. Based on this, in In an optional embodiment, this embodiment can further determine whether the HEPA net is cleaned after automatic cleaning, so that subsequent processing can be performed based on the determination result.

Then, on the basis of the above step S106, the HEPA network contamination detection method provided by this embodiment may also include the following steps S107 to S109.

Step S107: After the automatic cleaning of the HEPA network is completed, collect the air inlet wind speed and air outlet wind speed of the HEPA network again.

Step S108: Determine whether the HEPA net has been cleaned based on the re-collected air inlet wind speed and air outlet wind speed.

Optionally, if the wind speed difference between the air inlet wind speed and the air outlet wind speed collected again is less than the wind speed threshold, it is determined that the HEPA network has been cleaned. The wind speed threshold here is the same as the wind speed threshold in step S102.

Of course, the wind speed threshold in this step and the wind speed threshold in step S102 may also be different, and are not limited here.

Step S109: If not, send the second cleaning reminder information to the target user.

Since the automatic cleaning has not cleaned the HEPA network, it means that the HEPA network is very dirty and the stains are stubborn. Even if the automatic cleaning is performed again at this time, it may not be cleaned completely. Therefore, a second cleaning reminder message can be sent to the target user. To remind target users to disassemble and clean the HEPA net.

As introduced in the previous embodiment, the HEPA network can be automatically cleaned through the automatic cleaning program. Considering that the automatic cleaning program may not be able to be cleaned even if the automatic cleaning program is always turned on, in order to avoid energy consumption due to the automatic cleaning program being turned on, optional , the HEPA network dirt detection method provided by this embodiment may also include the following step S110.

Step S110: Check whether feedback information from the target user regarding the second cleaning reminder information is received within the target time period. If not, close the automatic cleaning program.

This step can effectively save energy by turning off the automatic cleaning program.

In summary, the HEPA net dirt detection method provided in this embodiment can effectively determine the degree of dirt of the HEPA net through multiple dirt detections, and promptly remind the target user to perform automatic or manual disassembly and cleaning to avoid untimely cleaning. Poor indoor air quality occurs, improving user experience.

In order to enable those skilled in the art to better understand this application, the HEPA network contamination detection method provided by this application is introduced in detail through the following examples.

Optionally, see FIG. 2 , which is a schematic flow chart of another HEPA net dirt detection method provided by an embodiment of the present application.

As shown in Figure 2, the HEPA network contamination detection method provided by this embodiment may include:

Step S201: When the air conditioner is operating normally, obtain the air inlet wind speed and the air outlet wind speed of the high-efficiency air filter HEPA network of the air conditioner.

Among them, the air inlet wind speed refers to the average air inlet wind speed or the actual value of the wind speed collected within the set time period, and the air outlet wind speed refers to the average air outlet wind speed or the actual wind speed value collected within the set time period.

Step S202: Calculate the wind speed difference between the air inlet wind speed and the air outlet wind speed, and determine whether the wind speed difference is greater than a preset wind speed threshold.

If not, it is determined that the HEPA network is not dirty. If yes, it is determined that the HEPA network is dirty. At this time, step S203 is performed.

Step S203: If the wind speed difference is greater than the wind speed threshold, after turning on the air conditioning purification function, obtain the harmful substance content of the air inlet and the harmful substance content of the air outlet of the HEPA network.

Step S204: Determine whether the content of harmful substances in the air inlet is greater than or equal to the first content threshold, and determine whether the content of harmful substances in the air outlet is greater than or equal to the second content threshold.

If the content of harmful substances in the air inlet is greater than or equal to the first content threshold, and the content of harmful substances in the air outlet is greater than or equal to the second content threshold, step S205 is executed; if the content of harmful substances in the air inlet is less than the first content threshold, and/or the air outlet If the harmful substance content is less than the second content threshold, the target user is reminded that the HEPA network is dirty.

Step S205: If the content of harmful substances in the air inlet is greater than or equal to the first content threshold, and the content of harmful substances in the air outlet is greater than or equal to the second content threshold, determine whether the content of harmful substances in the air inlet is less than or equal to the content of harmful substances in the air outlet.

If the content of harmful substances in the air inlet is greater than the content of harmful substances in the air outlet, the target user is reminded that the HEPA net is dirty; if the content of harmful substances in the air inlet is less than or equal to the content of harmful substances in the air outlet, step S206 is executed.

Step S206: If the content of harmful substances in the air inlet is less than or equal to the content of harmful substances in the air outlet, send the first cleaning reminder message to the target user.

Step S207: In response to the user's cleaning instruction, an automatic cleaning program is used to control the fan rotation of the air conditioner to automatically clean the HEPA network.

Step S208: After the automatic cleaning of the HEPA network is completed, determine whether the HEPA network has been cleaned based on collecting the air inlet wind speed and air outlet wind speed of the HEPA network again.

If yes, execute step S211; if not, execute step S209.

Step S209: If the HEPA network has not been cleaned, send a second cleaning reminder message to the target user.

Among them, the second cleaning reminder message is used to remind the target user to disassemble and clean the HEPA network.

Step S210: Detect whether feedback information from the target user regarding the second cleaning reminder information is received within the target time period.

If not, execute step S211.

Step S211: Close the automatic cleaning program.

The specific implementation process of each step in this embodiment corresponds to the previous embodiment. For details, please refer to the introduction in the previous embodiment, and will not be described again here.

Embodiments of the present application also provide a HEPA net dirt detection device. The HEPA net dirt detection device provided by embodiments of the present application is described below. The HEPA net dirt detection device described below is the same as the HEPA net dirt detection device described above. Detection methods can be compared and referenced with each other.

Please refer to Figure 3, which shows a schematic structural diagram of a HEPA network dirt detection device provided by an embodiment of the present application. As shown in Figure 3, the HEPA network dirt detection device may include: a wind speed acquisition module 301 and a dirt initial inspection module. 302. Hazardous substance content acquisition module 303, dirt re-inspection module 304 and cleaning reminder module 305.

The wind speed acquisition module 301 is used to obtain the air inlet wind speed and air outlet wind speed of the high-efficiency air filtration HEPA network of the air conditioner when the air conditioner is operating normally, where the air inlet wind speed refers to the air inlet wind speed collected within a set time period. The average value or the actual value of the wind speed. The outlet wind speed refers to the average value or the actual value of the air outlet wind speed collected within the set time period.

The initial dirt inspection module 302 is used to determine whether the HEPA net is dirty based on the air inlet wind speed and the air outlet wind speed.

The harmful substance content acquisition module 303 is used to obtain the harmful substance content of the air inlet and the harmful substance content of the air outlet of the HEPA network after turning on the air conditioning purification function if the HEPA network is dirty.

The dirt re-inspection module 304 is used to determine whether the HEPA net needs to be cleaned based on the content of harmful substances in the air inlet and the content of harmful substances in the air outlet.

The cleaning reminder module 305 is used to send a first cleaning reminder message to the target user when the HEPA network needs to be cleaned, where the first cleaning reminder message is used to remind the target user to clean the HEPA network.

The HEPA net dirt detection device provided by this application obtains the air inlet wind speed and air outlet wind speed of the high-efficiency air filtration HEPA net of the air conditioner when the air conditioner is operating normally, and determines the HEPA based on the air inlet wind speed and the air outlet wind speed. Whether the HEPA net is dirty. If the HEPA net is dirty, after turning on the air conditioning purification function, obtain the harmful substance content of the air inlet and the harmful material content of the air outlet of the HEPA net, and determine based on the harmful substance content of the air inlet and the air outlet. Whether the HEPA network needs to be cleaned. When the HEPA network needs to be cleaned, the first cleaning reminder message is sent to the target user. This application can automatically detect whether the HEPA network is dirty and needs to be cleaned. When the HEPA network needs cleaning, it will send the first cleaning reminder message to the target user, so that the target user can clean the HEPA network in time, and the user experience is better.

In a possible implementation, the above-mentioned initial dirt inspection module 302 may include: a wind speed difference calculation module and a wind speed difference comparison module.

The wind speed difference calculation module is used to calculate the difference between the air inlet wind speed and the air outlet wind speed, and the obtained difference is used as the wind speed difference.

The wind speed difference comparison module is used to determine that the HEPA net is not dirty if the wind speed difference is less than a preset wind speed threshold; otherwise, it is determined that the HEPA net is dirty.

In a possible implementation, the above-mentioned pollution review module 304 can be used to: if the content of harmful substances in the air inlet is greater than or equal to the preset first content threshold, and the content of harmful substances in the air outlet is greater than or equal to the preset At the second content threshold, it is determined that the HEPA net needs to be cleaned, and/or if the content of harmful substances in the air inlet is less than or equal to the content of harmful substances in the air outlet, it is determined that the HEPA net needs to be cleaned.

In a possible implementation, the above-mentioned cleaning reminder module 304 can be used to: send the first cleaning reminder information to the target user through an application program matched with the air conditioner, and/or send the first cleaning reminder information to the target user through a voice module set on the air conditioner. The user sends the first cleaning reminder message.

In a possible implementation, the HEPA network dirt detection device provided by the embodiment of the present application may also include: an automatic cleaning module.

The automatic cleaning module is used to automatically clean the HEPA network in response to the user's cleaning instructions.

In a possible implementation manner, the above-mentioned automatic cleaning module can be specifically used to control the fan reversal of the air conditioner using an automatic cleaning program to automatically clean the HEPA network.

In a possible implementation manner, the HEPA network dirt detection device provided by the embodiment of the present application may also include: a wind speed collection module, a cleaning result detection module and a disassembly and cleaning reminder module.

The wind speed collection module is used to collect the air inlet wind speed and air outlet wind speed of the HEPA net again after the automatic cleaning of the HEPA net.

The cleaning result detection module is used to determine whether the HEPA network has been cleaned based on the re-collected air inlet wind speed and air outlet wind speed.

The disassembly and cleaning reminder module is used to send a second cleaning reminder message to the target user if the HEPA network is not cleaned. The second cleaning reminder message is used to remind the target user to disassemble and clean the HEPA network.

In a possible implementation, the HEPA network dirt detection device provided by the embodiment of the present application may also include: a feedback detection module and a cleaning program shutdown module.

The feedback detection module is used to detect whether feedback information from the target user regarding the second cleaning reminder information is received within the target time period.

The cleaning program closing module is used to close the automatic cleaning program if no feedback information from the target user regarding the second cleaning reminder information is received within a target period of time.

The embodiment of the present application also provides a HEPA network contamination detection device. Optionally, Figure 4 shows the HEPA net Hardware structure block diagram of the dirt detection device. Referring to Figure 4, the hardware structure of the HEPA network dirt detection device may include: at least one processor 401, at least one communication interface 402, at least one memory 403 and at least one communication bus 404;

In this embodiment of the present application, the number of the processor 401, the communication interface 402, the memory 403, and the communication bus 404 is at least one, and the processor 401, the communication interface 402, and the memory 403 complete communication with each other through the communication bus 404;

The processor 401 may be a central processing unit CPU, or an application specific integrated circuit ASIC (Application Specific Integrated Circuit), or one or more integrated circuits configured to implement embodiments of the present invention, etc.;

The memory 403 may include high-speed RAM memory, and may also include non-volatile memory (non-volatile memory), such as at least one disk memory;

Among them, the memory 403 stores a program, and the processor 401 can call the program stored in the memory 403. The program is used for:

Optionally, the detailed functions and extended functions of the program may refer to the above description.

Embodiments of the present application also provide a readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the above-mentioned HEPA network contamination detection method is implemented.

An embodiment of the present disclosure provides a computer program. When the computer program is executed by a computer, the computer implements the above-mentioned HEPA network contamination detection method.

Embodiments of the present disclosure provide a computer program product. The computer program product includes computer instructions stored on a computer-readable storage medium. When the program instructions are executed by a computer, the computer implements the above-mentioned HEPA network pollution. Detection method.

Finally, it should be noted that in this article, relational terms such as and second, etc. are only used to refer to an actual entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Furthermore, the terms "comprises,""comprises," or any other variations thereof are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also those not expressly listed other elements, or elements inherent to the process, method, article or equipment. Without further limitation, an element defined by the statement "comprises a..." does not exclude the presence of additional identical elements in a process, method, article, or apparatus that includes the stated element.

Each embodiment in this specification is described in a progressive manner. Each embodiment focuses on its differences from other embodiments. The same and similar parts between the various embodiments can be referred to each other.

The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be practiced in other embodiments without departing from the spirit or scope of the application. Therefore, the present application is not to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

A method for detecting HEPA network contamination, which is characterized by including:

When the air conditioner is operating normally, the air inlet wind speed and air outlet wind speed of the high-efficiency air filtration HEPA network of the air conditioner are obtained, where the air inlet wind speed refers to the average or wind speed of the air inlet wind speed collected within a set period of time. Actual value, the outlet wind speed refers to the average value of the outlet wind speed collected within the set time period or the actual value of the wind speed;

Determine whether the HEPA net is dirty according to the air inlet wind speed and the air outlet wind speed;

If the HEPA net is dirty, after turning on the air conditioning purification function, obtain the harmful substance content of the air inlet and the harmful substance content of the air outlet of the HEPA net;

Determine whether the HEPA net needs to be cleaned based on the harmful material content of the air inlet and the harmful material content of the air outlet;

When the HEPA network needs to be cleaned, first cleaning reminder information is sent to the target user, where the first cleaning reminder information is used to remind the target user to clean the HEPA network.
The HEPA net dirt detection method according to claim 1, wherein determining whether the HEPA net is dirty based on the air inlet wind speed and the air outlet wind speed includes:

Calculate the difference between the wind speed at the air inlet and the wind speed at the air outlet, and the obtained difference is used as the wind speed difference;

If the wind speed difference is less than the preset wind speed threshold, it is determined that the HEPA net is not dirty; otherwise, it is determined that the HEPA net is dirty.
The HEPA net dirt detection method according to claim 1 or 2, characterized in that determining whether the HEPA net needs to be cleaned based on the harmful substance content of the air inlet and the harmful substance content of the air outlet includes:

If the content of harmful substances in the air inlet is greater than or equal to the preset first content threshold, and the content of harmful substances in the air outlet is greater than or equal to the preset second content threshold, it is determined that the HEPA net needs to be cleaned;

And/or, if the harmful substance content in the air inlet is less than or equal to the harmful substance content in the air outlet, it is determined that the HEPA net needs to be cleaned.
The HEPA network dirt detection method according to any one of claims 1 to 3, characterized in that sending the first cleaning reminder information to the target user includes:

The first cleaning reminder information is sent to the target user through an application program matched with the air conditioner, and/or the first cleaning reminder information is sent to the target user through a voice module provided on the air conditioner. .
The HEPA net dirt detection method according to any one of claims 1 to 4, further comprising:

In response to the user's cleaning instruction, the HEPA network is automatically cleaned.
The HEPA net dirt detection method according to claim 5, wherein the automatic cleaning of the HEPA net includes:

An automatic cleaning program is used to control the fan reversal of the air conditioner to automatically clean the HEPA network.
The HEPA net dirt detection method according to claim 6, further comprising:

After the HEPA net is automatically cleaned, the air inlet wind speed and air outlet wind speed of the HEPA net are collected again;

According to the air inlet wind speed and air outlet wind speed collected again, determine whether the HEPA net has been cleaned;

If not, send second cleaning reminder information to the target user, where the second cleaning reminder information is used to remind the target user to disassemble and clean the HEPA network.
The HEPA net dirt detection method according to claim 7, further comprising:

Detect whether feedback information from the target user regarding the second cleaning reminder information is received within a target time period;

If not, the automatic cleaning program is turned off.
A HEPA net contamination detection device, which is characterized by including:

The wind speed acquisition module is used to obtain the air inlet wind speed and air outlet wind speed of the high-efficiency air filter HEPA network of the air conditioner when the air conditioner is operating normally, wherein the air inlet wind speed refers to the air inlet wind speed collected within a set time period. The average wind speed at the air inlet or the actual value of the wind speed, and the wind speed at the air outlet refers to the average wind speed or the actual value of the wind speed at the air outlet collected within the set time period;

A preliminary dirt inspection module is used to determine whether the HEPA net is dirty based on the wind speed of the air inlet and the wind speed of the air outlet;

A harmful substance content acquisition module, used to obtain the harmful substance content of the air inlet and the harmful substance content of the air outlet of the HEPA network after turning on the air conditioning purification function if the HEPA network is dirty;

A dirt re-inspection module, used to determine whether the HEPA net needs to be cleaned based on the content of harmful substances in the air inlet and the content of harmful substances in the air outlet;

A cleaning reminder module is configured to send a first cleaning reminder message to a target user when the HEPA network needs to be cleaned, where the first cleaning reminder message is used to remind the target user to clean the HEPA network.
The HEPA network dirt detection device according to claim 9, characterized in that the dirt re-inspection module is specifically used for:

If the content of harmful substances in the air inlet is less than or equal to the preset first content threshold, and the content of harmful substances in the air outlet is less than or equal to the preset second content threshold, it is determined that the HEPA net needs to be cleaned;

and/or, if the content of harmful substances in the air inlet is less than the content of harmful substances in the air outlet, determine that the HEPA mesh needs cleaning.
A computer program, when the computer program is executed by a computer, causes the computer to implement the HEPA network contamination detection method according to any one of claims 1 to 7.
A computer program product. The computer program product includes computer instructions stored on a computer-readable storage medium. When the program instructions are executed by a computer, the computer implements any one of claims 1 to 7. HEPA net contamination detection method.