Control Method, Device, Intelligent Device and Storage Medium of Fresh Air Machine

Abstract

This application relates to the technical field of fresh air fans, and particularly to a control method, device, intelligent device, and storage medium for a fresh air fan. The method includes: obtaining an environmental image of the place where the fresh air fan is located; determining the place information of the place based on the environmental image; performing human detection on the environmental image to determine the human information in the place; and regulating the fresh air delivery of the fresh air fan according to the place information and the human information. By using this method, intelligent fresh air regulation can be achieved, the accuracy and timeliness of fresh air regulation can be improved, energy can be saved and emissions can be reduced at the same time, and the user experience can be enhanced.

Description

Technical Field

[0001] This application relates to the technical field of fresh air fans, and in particular to a control method, device, intelligent device and storage medium for a fresh air fan. Background Art

[0002] Nowadays, the indoor environmental quality has attracted more and more attention from people. Especially in public buildings with a high density of people, the indoor environmental quality is particularly important. At present, more and more people install fresh air fans to adjust the indoor air quality. The fresh air fan is equipped with various air quality sensors such as carbon dioxide and PM2.5 on the indoor main unit. When the sensors detect that the indoor air quality deteriorates and reaches the trigger threshold, the motor is started or accelerated for air exchange (extracting the turbid air indoors and inputting the fresh air outdoors), so that the indoor air quality is improved. When the air quality reaches the user-set standard, the motor air exchange speed is stopped or reduced to save electric energy. In this way, the indoor air quality reaches a dynamic balance, improving the comfort of people's indoor activities.

[0003] However, the fresh air fan can only sense the surrounding air quality by its own sensors, and the accuracy and timeliness of regulating the air volume are not high, and the degree of intelligence is low, so the expected effect cannot be achieved. Summary of the Invention

[0004] In view of this, the embodiments of this application provide a control method, device, intelligent device and storage medium for a fresh air fan, which can operate the fresh air fan intelligently, improve the accuracy and timeliness of fresh air regulation, and enhance the user experience.

[0005] The first aspect of the embodiments of this application provides a control method for a fresh air fan, including:

[0006] Obtain the environmental image of the place where the fresh air fan is located;

[0007] Based on the environmental image, determine the place information of the place;

[0008] Perform personnel detection on the environmental image to determine the personnel information in the place;

[0009] Regulate the fresh air delivery of the fresh air fan according to the place information and the personnel information.

[0010] In a possible implementation manner of the first aspect, the place information includes the length, width and height of the place space, and the regulating the fresh air delivery of the fresh air fan according to the place information and the personnel information includes:

[0011] Determine the personnel density of the place according to the place information and the personnel information;

[0012] Obtain the air change rate of the fresh air fan;

[0013] Determine a first fresh air volume according to the length, width and height of the said venue, the degree of crowding of the people, and the air change rate.

[0014] Regulate the fresh air delivery of the fresh air machine according to the said first fresh air volume.

[0015] In a possible implementation manner of the first aspect, the determining of the first fresh air volume according to the length, width and height of the said venue, the degree of crowding of the people, and the air change rate includes:

[0016] Determine the first fresh air volume Pa according to the following formula:

[0017] Pa = L×W×H×E×J×S×K;

[0018] Wherein, L represents the length of the said venue, W represents the width of the said venue, H represents the height of the said venue, E represents the air change rate, J represents the degree of crowding of the people, K is a preset adjustment coefficient with a value in the interval (0, 1], and S is a logic switch with a value in the interval [0, 1].

[0019] In a possible implementation manner of the first aspect, the personnel information includes the number of people, the body size and behavior state of each person, and the regulating of the fresh air delivery of the fresh air machine according to the venue information and the personnel information includes:

[0020] Determine a second fresh air volume according to the number of people, the body size and behavior state of each person.

[0021] Regulate the fresh air delivery of the fresh air machine according to the said second fresh air volume.

[0022] In a possible implementation manner of the first aspect, the determining of the second fresh air volume according to the number of people, the body size and behavior state of each person includes:

[0023] Obtain the state value corresponding to the behavior state of the people.

[0024] Determine the second fresh air volume Pb according to the following formula:

[0025]

[0026] Wherein, N represents the number of people, i represents the person label, V i represents the body size of the i-th person, V norm is the preset average body size, M i represents the state value corresponding to the behavior state of the i-th person, and B is the fresh air volume required per person per unit time.

[0027] In a possible implementation of the first aspect, the venue information includes the length, width, and height of the venue space, the personnel information includes the number of personnel, the body shape and behavior state of each person, and the regulation of the fresh air delivery of the fresh air unit according to the venue information and the personnel information includes:

[0028] Determine the personnel density of the venue according to the venue information and the personnel information;

[0029] Obtain the air change rate of the fresh air unit;

[0030] Determine the first fresh air volume according to the length, width, and height of the venue, the personnel density, and the air change rate;

[0031] Determine the second fresh air volume according to the number of personnel, the body shape and behavior state of each person;

[0032] Regulate the fresh air delivery of the fresh air unit according to the first fresh air volume and the second fresh air volume.

[0033] In a possible implementation of the first aspect, the fresh air unit is communicatively connected to a plurality of cameras, and the plurality of cameras are used to collect environmental sub-images of different specified areas;

[0034] The obtaining of the environmental image of the venue where the fresh air unit is located includes:

[0035] Obtain the environmental sub-images collected by the plurality of cameras respectively;

[0036] Perform image fusion on the plurality of environmental sub-images to obtain the environmental image of the venue where the fresh air unit is located.

[0037] A second aspect of the embodiments of the present application provides a regulation device for a fresh air unit, and the regulation device includes:

[0038] An environmental image acquisition unit for acquiring the environmental image of the venue where the fresh air unit is located;

[0039] A venue information determination unit for determining the venue information of the venue based on the environmental image;

[0040] A personnel information determination unit for performing personnel detection on the environmental image to determine the personnel information in the venue;

[0041] A fresh air regulation unit for regulating the fresh air delivery of the fresh air unit according to the venue information and the personnel information.

[0042] In a third aspect of the embodiments of the present application, an intelligent device is provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the steps of the regulation method of the fresh air fan provided in the first aspect of the embodiments of the present application are implemented.

[0043] In a fourth aspect of the embodiments of the present application, a computer-readable storage medium is provided. The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the regulation method of the fresh air fan provided in the first aspect of the embodiments of the present application are implemented.

[0044] In a fifth aspect of the embodiments of the present application, a computer program product is provided. When the computer program product runs on a terminal device, the terminal device is enabled to execute the steps of the regulation method of the fresh air fan described in the first aspect of the embodiments of the present application.

[0045] In the embodiments of the present application, by acquiring the environmental image of the place where the fresh air fan is located, based on the environmental image, determining the place information of the place, performing human detection on the environmental image, determining the human information in the place, and then intelligently regulating the fresh air delivery of the fresh air fan according to the place information and the human information, the accuracy and timeliness of fresh air regulation can be improved, and at the same time, energy can be saved and emissions can be reduced, enhancing the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0047] Figure 1 is the implementation flowchart of the regulation method of the fresh air fan provided in the embodiments of the present application;

[0048] Figure 1.1 is a schematic diagram of an application scenario of the regulation method of the fresh air fan provided in the embodiments of the present application;

[0049] Figure 2 is a specific implementation flowchart of acquiring the environmental image of the place where the fresh air fan is located in the regulation method of the fresh air fan provided in the embodiments of the present application;

[0050] Figure 3 is a specific implementation flowchart of regulating the fresh air delivery of the fresh air fan in the regulation method of the fresh air fan provided in the embodiments of the present application;

[0051] Figure 4It is another specific implementation flowchart for regulating the fresh air delivery of the fresh air fan provided in the embodiment of the present application;

[0052] Figure 5 It is yet another specific implementation flowchart for regulating the fresh air delivery of the fresh air fan provided in the embodiment of the present application;

[0053] Figure 6 It is a structural block diagram of the fresh air fan regulation device provided in the embodiment of the present application;

[0054] Figure 7 It is a schematic diagram of an intelligent device provided in the embodiment of the present application. Specific Embodiments

[0055] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present application. However, those skilled in the art should clearly understand that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, circuits, and methods are omitted to avoid unnecessary details from interfering with the description of the present application.

[0056] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0057] The reference to "one embodiment" or "some embodiments" etc. in the description of the present application specification means that specific features, structures, or characteristics described in conjunction with the embodiment are included in one or more embodiments of the present application. Thus, the statements "in one embodiment", "in some embodiments", "in other some embodiments", "in still other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "comprising", "including", "having", and their variants all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0058] It should be understood that each method embodiment of the present application provides a fresh air fan regulation method applicable to devices that need to perform fresh air delivery.

[0059] The fresh air fan regulation method provided by the present application will be described exemplarily below in combination with specific embodiments.

[0060] Figure 1The implementation process of the regulation method of the fresh air fan provided by the embodiments of the present application is shown. The execution end of the embodiments of the present application can be an intelligent device. The method process can include the following steps S101 to S104.

[0061] S101: Obtain the environmental image of the place where the fresh air fan is located.

[0062] The above environmental image includes the spatial information of the place where the above fresh air fan is located.

[0063] In some embodiments, a camera is built into the fresh air fan, and the environmental image is captured by the built-in camera.

[0064] In some embodiments, the fresh air fan is communicatively connected to the camera. In this embodiment, the fresh air fan and the camera are installed at different positions in the same place. Exemplarily, as Figure 1.1 shown, the fresh air fan and the intelligent camera are installed at different positions in the place, and the fresh air fan is communicatively connected to the intelligent camera through WiFi.

[0065] In the embodiments of the present application, whether it is the camera built into the fresh air fan or the camera communicatively connected to the fresh air fan, it is necessary to capture the complete spatial information of the place where the fresh air fan is located.

[0066] As a possible embodiment of the present application, the fresh air fan is communicatively connected to multiple cameras, and the multiple cameras are used to collect environmental sub-images of different specified areas. Figure 2 The following shows a specific implementation process of obtaining the environmental image of the place where the fresh air fan is located in the method provided by the embodiments of the present application, which is described in detail as follows:

[0067] A1: Obtain the environmental sub-images collected by multiple cameras respectively.

[0068] A2: Perform image fusion on the multiple environmental sub-images to obtain the environmental image of the place where the fresh air fan is located.

[0069] In the embodiments of the present application, the fresh air fan is communicatively connected to multiple cameras installed in the same place. The multiple cameras are respectively installed at different positions in the place. Each camera captures the environmental sub-image of the specified area of the place. The fresh air fan obtains the environmental sub-images sent by the multiple cameras in the place where it is located, and performs image fusion on the multiple environmental sub-images, that is, splicing and detail processing on the multiple environmental sub-images, to obtain an environmental image containing the complete spatial information of the place.

[0070] Exemplarily, three intelligent cameras wirelessly connected to the fresh air machine are installed in the venue. These three intelligent cameras are installed at different positions in the venue. Among them, the first intelligent camera is used to capture and collect the first environmental sub-image of the first designated area of the venue, the second intelligent camera is used to capture and collect the second environmental sub-image of the second designated area of the venue, and the third intelligent camera is used to capture and collect the third environmental sub-image of the third designated area of the venue. The first designated area, the second designated area, and the third designated area together can cover the entire area of the venue. The fresh air machine obtains the first environmental sub-image, the second environmental sub-image, and the third environmental sub-image, and performs image fusion on the first environmental sub-image, the second environmental sub-image, and the third environmental sub-image to obtain an environmental image containing the complete spatial information of the venue.

[0071] S102: Based on the environmental image, determine the venue information of the venue.

[0072] In a possible implementation manner, the environmental image is input into a trained space recognition model, and the venue information of the venue is obtained according to the output of the space recognition model. The space recognition model is a neural network model for recognizing the venue information of a venue.

[0073] In a possible implementation manner, mapping and modeling are performed on the environmental image, and the venue information of the venue is determined according to the results of the mapping and modeling.

[0074] S103: Perform human detection on the environmental image to determine the human information in the venue.

[0075] The above-mentioned human detection on the environmental image refers to identifying the people in the environmental image. In the embodiments of the present application, a trained deep learning model can be used to perform human detection on the environmental image to determine the human information in the venue.

[0076] The above-mentioned human information includes but is not limited to the number of people, the body shape of the people, and the behavior state.

[0077] In some possible implementation manners, the above-mentioned deep learning model includes a number detection sub-model, a body shape recognition sub-model, and a behavior recognition sub-model. The number detection sub-model is used to detect and output the number of people in the environmental image, the body shape recognition sub-model is used to recognize and output the body shape of the people, and the behavior recognition sub-model is used to recognize and output the behavior state of the people.

[0078] S104: According to the venue information and the human information, adjust the fresh air delivery of the fresh air machine.

[0079] In an embodiment of the present application, according to the venue information and the personnel information, the required fresh air volume of the venue space is determined, and then the fresh air delivery of the fresh air machine is regulated based on the required fresh air volume.

[0080] As a possible implementation manner of the present application, the venue information includes the length, width and height of the venue space, and the personnel information includes the number of personnel. Figure 3 The following shows a specific implementation process of regulating the fresh air delivery of the fresh air machine according to the venue information and the personnel information in the method embodiment provided by the embodiment of the present application, which is described in detail as follows:

[0081] B1: According to the venue information and the personnel information, determine the personnel density of the venue. The personnel density is used to determine the required fresh air volume of the current venue.

[0082] In a possible implementation manner, the personnel information includes the number of personnel. The venue area is determined according to the length and width of the venue. According to the venue area and the number of personnel, the per capita area is calculated. According to the per capita area and the preset area density comparison table, the personnel density in the venue is determined. Among them, the preset density comparison table includes the corresponding relationship between the preset per capita area interval and the personnel density. By querying the preset per capita area interval to which the above per capita area belongs in the preset density comparison table, the corresponding personnel density can be determined. In some embodiments, the above preset area density comparison table is established according to the venue type, that is, different types of venues correspond to different preset area density tables.

[0083] In a possible implementation manner, when there are multiple personnel in the venue, calculate the average distance between the personnel in the environmental image. The venue area is determined according to the length and width of the venue. According to the average distance and the venue area, the personnel density in the venue is determined. In this embodiment, a mapping relationship among the preset venue area interval, the preset per capita distance interval and the personnel density is preset. Among them, there is a one-to-many relationship between the preset venue area interval and the preset per capita distance interval, and the preset per capita distance interval and the personnel density are in one-to-one correspondence, that is, the same preset venue area interval corresponds to multiple preset per capita distance intervals, and the same preset per capita distance interval corresponds to a kind of personnel density. According to this mapping relationship, determine the preset venue area interval to which the venue area belongs, and then the corresponding preset per capita distance interval can be determined. Then, according to the preset per capita distance interval to which the per capita distance in the venue belongs, determine the personnel density of the venue. In some embodiments, the above mapping relationship is established based on the venue type.

[0084] In the embodiments of the present application, the above-mentioned personnel density can be divided into non-dense, general dense, relatively dense, and dense. In some embodiments, if the number of people in the venue is 0 or 1, the personnel density in the venue can be directly determined to be non-dense.

[0085] B2: Obtain the air change rate of the fresh air unit.

[0086] In some embodiments, the air change rate is preset. Specifically, the air change rate can be preset according to user requirements and / or venue type during the initialization setting of the fresh air unit.

[0087] In some embodiments, to reduce energy consumption, the air change rate is periodically determined according to the number of people in the venue, and the air change rate is dynamically adjusted according to the change in the number of people in the venue. Specifically, the air change rate is increased according to the increase in the number of people, or the air change rate is decreased according to the decrease in the number of people. Among them, the increased or decreased number can be determined by statistical analysis of historical information.

[0088] B3: Determine the first fresh air volume according to the length, width, and height of the venue, the personnel density, and the air change rate.

[0089] As a possible embodiment of the present application, the first fresh air volume Pa is determined according to the following formula (1):

[0090] Pa = L×W×H×E×J×S×K (1)

[0091] Wherein, L represents the length of the venue, W represents the width of the venue, H represents the height of the venue, E represents the air change rate, J represents the personnel density, K is a preset adjustment coefficient with a value in the interval (0, 1], and S is a logical switch with a value in the interval [0, 1].

[0092] The value of the above-mentioned logical switch S is related to whether there are people in the venue. For example, if the number of people in the venue is 0, the value of S is in the interval [0, 0.5]; if the number of people in the venue is not 0, the value of S is in the interval (0.5, 1].

[0093] In the embodiments of the present application, the specific values of the above-mentioned preset adjustment coefficient K and the above-mentioned logical switch S are determined according to the venue type of the venue. Specifically, the environmental image is uploaded to the cloud server for statistical learning, the specific value of the above-mentioned preset adjustment coefficient K is determined according to the venue type, and the specific value of the above-mentioned logical switch S is determined according to the venue type and the number of people in the environmental image.

[0094] B4: According to the first fresh air volume, regulating the fresh air delivery of the fresh air fan. Specifically, regulating the fresh air volume delivered by the fresh air fan to be at least the first fresh air volume, that is, the fresh air volume delivered by the fresh air fan is not less than the first fresh air volume.

[0095] In an embodiment of the present application, a first fresh air volume is determined based on the length, width and height of the place, the density of people and the number of air changes, and then based on the first fresh air volume, the fresh air delivery of the fresh air fan is intelligently regulated, which can improve the accuracy and timeliness of fresh air regulation and save energy.

[0096] As a possible implementation of the present application, the personnel information includes the number of personnel, the body shape and behavior status of each person, Figure 4 In addition to the method embodiment provided in the embodiment of the present application, another specific implementation process of regulating the fresh air delivery of the fresh air fan according to the site information and the personnel information is described in detail as follows:

[0097] C1: Determine the second fresh air volume according to the number of personnel, the body shape and behavior status of each personnel.

[0098] As a possible implementation of the present application, a state value corresponding to the behavior state of a person is obtained. Specifically, there are multiple behavior states of a person, including a static state, a slight movement state, a moderate movement state, and a violent movement state. Exemplarily, the behavior states include: static states such as sitting on a sofa watching TV, reading, etc., slight movement states such as giving a speech, taking a walk, moderate movement states such as table tennis, and violent movement states such as badminton and basketball. The state value of each behavior state is preset. For example, the state value of the static state is 1, the state value of the slight movement state is 1.2, the state value corresponding to the moderate movement state is 2, and the state value corresponding to the violent movement state is 3. Determine the corresponding state value according to the behavior state of the person.

[0099] The second fresh air volume Pb is determined according to the following formula (2):

[0100]

[0101] Wherein, N represents the number of personnel, i represents the personnel number, V i represents the body size of the ith person, V norm is the preset average body size, M i represents the state value corresponding to the behavior state of the ith person, and B is the fresh air volume required per person per unit time. For example, according to the standard for per capita ventilation in the national standard GB / T1883-2002, B is 30 cubic meters per hour.

[0102] In a possible implementation, the fresh air volume B required per capita per unit time is adjusted according to the type of the venue and the corresponding behavior state of the personnel. For example, in a sports venue, where the personnel are engaged in intense exercise, the fresh air volume required per capita per unit time may be greater than that of the personnel reading in a library.

[0103] In a possible implementation, when there are multiple personnel in the same venue and there are multiple behavior states, the second fresh air volume is determined according to the number of the personnel, the body size of each personnel, the behavior state and its weight. Specifically, the second fresh air volume Pb is determined according to the following formula (3):

[0104]

[0105] where ρ i represents the weight of the behavior state of the i-th personnel,

[0106] In this embodiment, the weights corresponding to different behavior states in the same venue can be allocated according to the type of the venue. Generally, the higher the intensity of the exercise, the higher the corresponding weight. For example, the weight of the intense exercise state is higher than that of the moderate exercise state, the weight of the moderate exercise state is higher than that of the light exercise state, and the weight of the static state is the lowest.

[0107] C2: Control the fresh air delivery of the fresh air machine according to the second fresh air volume. Specifically, control the fresh air volume delivered by the fresh air machine to be at least the second fresh air volume, that is, the fresh air volume delivered by the fresh air machine is not less than the second fresh air volume.

[0108] In the embodiments of the present application, the second fresh air volume is determined according to the number of the personnel, the body size of each personnel and the behavior state, and then the fresh air delivery of the fresh air machine is intelligently controlled according to the second fresh air volume, which can improve the accuracy and timeliness of the fresh air control, meet the required air volume of the personnel in the venue, save energy consumption and enhance the user experience.

[0109] As a possible implementation of the present application, the venue information includes the length, width and height of the venue space, and the personnel information includes the number of the personnel, the body size of each personnel and the behavior state. Figure 4 Another specific implementation process of controlling the fresh air delivery of the fresh air machine according to the venue information and the personnel information in the method embodiments provided by the embodiments of the present application is given as follows in detail:

[0110] D1: Determine the personnel density of the venue according to the venue information and the personnel information.

[0111] D2: Obtain the air change rate of the fresh air machine.

[0112] D3: Determine a first fresh air volume based on the length, width, and height of the venue, the degree of crowding of people, and the air change rate.

[0113] D4: Determine a second fresh air volume based on the number of people, the body size and behavior state of each person.

[0114] In this embodiment, for the specific steps of steps D1 to D4, refer to the specific steps of determining the first fresh air volume and the second fresh air volume in the above embodiments respectively, which will not be elaborated here.

[0115] D5: Regulate the fresh air delivery of the fresh air machine according to the first fresh air volume and the second fresh air volume.

[0116] In the embodiment of the present application, determine the target fresh air volume required for the venue according to the first air volume and the second fresh air volume, and regulate the fresh air delivery of the fresh air machine according to the target fresh air volume.

[0117] In some embodiments, determine the larger value of the first fresh air volume and the second fresh air volume as the target fresh air volume.

[0118] In some embodiments, the target fresh air volume P = f×Pa+(1 - f)×Pb, where f is the weight of the first fresh air volume Pa, (1 - f) is the weight of the second fresh air volume Pb, and 0≤f≤1.

[0119] In the embodiment of the present application, determine the first fresh air volume according to the length, width, and height of the venue, the degree of crowding of people, and the air change rate, determine the second fresh air volume according to the number of people, the body size and behavior state of each person, and then combine the first fresh air volume and the second fresh air volume to intelligently regulate the fresh air delivery of the fresh air machine, further improving the accuracy and timeliness of fresh air regulation, meeting the required air volume of people in the venue, saving energy consumption, and enhancing the user experience.

[0120] As can be seen from the above, in the embodiment of the present application, by obtaining the environmental image of the venue where the fresh air machine is located, determining the venue information of the venue based on the environmental image, performing personnel detection on the environmental image to determine the personnel information in the venue, and then intelligently regulating the fresh air delivery of the fresh air machine according to the venue information and the personnel information, the accuracy and timeliness of fresh air regulation can be improved, while energy can be saved and emissions reduced, and the user experience can be enhanced.

[0121] It should be understood that the magnitudes of the sequence numbers of the steps in the above various embodiments do not mean the order of execution. The order of execution of each process should be determined according to its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0122] Corresponding to the regulation method of the fresh air machine described in the above embodiments, Figure 6The structural block diagram of the regulation device of the fresh air fan provided by the embodiment of the present application is shown. For the convenience of description, only the parts related to the embodiment of the present application are shown.

[0123] Referring to Figure 6 , this device is applied to an intelligent device, and the device includes: an environmental image acquisition unit 61, a venue information determination unit 62, a personnel information determination unit 63, and a fresh air regulation unit 64, where:

[0124] The environmental image acquisition unit 61 is used to acquire the environmental image of the venue where the fresh air fan is located;

[0125] The venue information determination unit 62 is used to determine the venue information of the venue based on the environmental image;

[0126] The personnel information determination unit 63 is used to perform personnel detection on the environmental image and determine the personnel information in the venue;

[0127] The fresh air regulation unit 64 is used to regulate the fresh air delivery of the fresh air fan according to the venue information and the personnel information.

[0128] As a possible implementation manner of the present application, the fresh air fan is communicatively connected to multiple cameras, and the multiple cameras are used to collect environmental sub-images of different specified areas; the environmental image acquisition unit 61 includes:

[0129] A sub-image acquisition module, which is used to acquire the environmental sub-images respectively collected by the multiple cameras;

[0130] An image fusion module, which is used to perform image fusion on the multiple environmental sub-images to obtain the environmental image of the venue where the fresh air fan is located.

[0131] As a possible implementation manner of the present application, the venue information includes the length, width and height of the venue space, and the fresh air regulation unit 64 includes:

[0132] A density determination module, which is used to determine the personnel density of the venue according to the venue information and the personnel information;

[0133] An air change rate determination module, which is used to obtain the air change rate of the fresh air fan;

[0134] A first fresh air volume determination module, which is used to determine the first fresh air volume according to the length, width and height of the venue, the personnel density and the air change rate;

[0135] A first regulation module, which is used to regulate the fresh air delivery of the fresh air fan according to the first fresh air volume.

[0136] As a possible implementation manner of the present application, the first fresh air volume determination module is specifically used for:

[0137] Determine the first fresh air volume Pa according to the following formula:

[0138] Pa = L × W × H × E × J × S × K;

[0139] Wherein, L represents the length of the place, W represents the width of the place, H represents the height of the place, E represents the air change rate, J represents the degree of personnel density, K is a preset adjustment coefficient with a value in the interval (0, 1], and S is a logic switch with a value in the interval [0, 1].

[0140] As a possible implementation manner of the present application, the personnel information includes the number of personnel, the body shape and behavior state of each personnel, and the fresh air regulation unit 64 includes:

[0141] A second fresh air volume determination module, configured to determine a second fresh air volume according to the number of personnel, the body shape and behavior state of each personnel;

[0142] A second regulation module, configured to regulate the fresh air delivery of the fresh air machine according to the second fresh air volume.

[0143] As a possible implementation manner of the present application, the second fresh air volume determination module is specifically configured to:

[0144] Obtain the state value corresponding to the behavior state of the personnel;

[0145] Determine the second fresh air volume Pb according to the following formula:

[0146]

[0147] Wherein, N represents the number of personnel, i represents the personnel label, V i represents the body shape of the i-th personnel, V norm is the preset average body shape, Mi represents the state value corresponding to the behavior state of the i-th personnel, and B is the fresh air volume required per person per unit time.

[0148] As a possible implementation manner of the present application, the fresh air regulation unit 64 further includes:

[0149] A third regulation module, configured to regulate the fresh air delivery of the fresh air machine according to the first fresh air volume and the second fresh air volume.

[0150] As can be seen from the above, in the embodiments of the present application, by obtaining the environmental image of the place where the fresh air fan is located, determining the place information of the place based on the environmental image, performing human detection on the environmental image to determine the human information in the place, and then intelligently regulating the fresh air delivery of the fresh air fan according to the place information and the human information, the accuracy and timeliness of fresh air regulation can be improved, while energy can be saved and emissions can be reduced, enhancing the user experience.

[0151] The embodiments of the present application also provide a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, it implements the steps of any one of the regulation methods of the fresh air fan as Figures 1 to 5 represented.

[0152] The embodiments of the present application also provide a computer program product. When the computer program product runs on a terminal device, it causes the terminal device to execute the steps of any one of the regulation methods of the fresh air fan as Figures 1 to 5 represented.

[0153] Figure 7 is a schematic diagram of an intelligent device provided by an embodiment of the present application. As Figure 7 shown, the intelligent device 7 in this embodiment includes: a processor 70, a memory 71, and a computer program 72 stored in the memory 71 and executable on the processor 70. When the processor 70 executes the computer program 72, it implements the steps in the embodiments of the above various regulation methods of the fresh air fan, such as Figure 1 the steps S101 to S104 shown. Alternatively, when the processor 70 executes the computer program 72, it implements the functions of each module / unit in the above system embodiments, such as Figure 6 the functions of the units 61 to 64 shown.

[0154] The computer program 72 can be divided into one or more modules / units. The one or more modules / units are stored in the memory 71 and executed by the processor 70 to complete the present application. The one or more modules / units can be a series of computer program instruction segments capable of performing specific functions, and these instruction segments are used to describe the execution process of the computer program 72 in the intelligent device 7.

[0155] The so-called processor 70 may be a Central Processing Unit (CPU), or may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field-Programmable Gate Arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0156] The memory 71 may be an internal storage unit of the intelligent device 7, such as the hard disk or memory of the intelligent device 7. The memory 71 may also be an external storage device of the intelligent device 7, such as a plug-in hard disk equipped on the intelligent device 7, a Smart Media Card (SMC), a Secure Digital (SD) card, a Flash Card, etc. Further, the memory 71 may also include both the internal storage unit and the external storage device of the intelligent device 7. The memory 71 is used to store the computer program and other programs and data required by the intelligent device. The memory 71 may also be used to temporarily store the data that has been output or will be output.

[0157] Those skilled in the art can clearly understand that, for the convenience and simplicity of description, only the above-mentioned division of each functional unit and module is used as an example. In actual applications, the above-mentioned functions can be allocated to different functional units and modules according to needs, that is, the internal structure of the system is divided into different functional units or modules to complete all or part of the functions described above. Each functional unit and module in the embodiment may be integrated in a processing unit, or each unit may exist physically alone, or two or more units may be integrated in one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of a software functional unit. In addition, the specific names of each functional unit and module are only for the convenience of mutual distinction and do not limit the protection scope of the present application. The specific working processes of the units and modules in the above-mentioned system can refer to the corresponding processes in the foregoing method embodiments and will not be described in detail here.

[0158] Those skilled in the art can clearly understand that, for the convenience and simplicity of description, the specific working processes of the above-described system, system, and unit can refer to the corresponding processes in the foregoing method embodiments and will not be described in detail here.

[0159] In the above embodiments, the descriptions of the respective embodiments have their own focuses. For parts not described or recorded in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0160] Those of ordinary skill in the art can realize that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered to exceed the scope of this application.

[0161] In the embodiments provided in this application, it should be understood that the disclosed systems and methods can be implemented in other ways. For example, the system embodiments described above are merely illustrative. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces. The indirect couplings or communication connections of the systems or units can be in electrical, mechanical or other forms.

[0162] The units described as separate components may or may not be physically separated. The components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0163] In addition, the functional units in the various embodiments of this application can be integrated in a processing unit, or each unit can exist physically alone, or two or more units can be integrated in one unit. The above integrated units can be implemented in the form of hardware or in the form of software functional units.

[0164] 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, to implement all or part of the processes in the above-mentioned embodiment methods of this application, it can also be completed by instructing relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by a processor, the steps of the above-mentioned various method embodiments can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in the form of source code, object code, executable file, or some intermediate form, etc. The computer-readable medium can include: any entity or system that can carry the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disc, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signal, telecommunication signal, and software distribution medium, etc. It should be noted that the content included in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, the computer-readable medium does not include electrical carrier signals and telecommunication signals.

[0165] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A control method for a fresh air machine, characterized in that, the method includes: Obtaining an environmental image of the place where the fresh air machine is located; Based on the environmental image, determining the place information of the place; Performing human detection on the environmental image to determine the human information in the place; According to the place information and the human information, regulating the fresh air delivery of the fresh air machine, where the human information includes the number of people, the body shape and behavior state of each person; The regulating the fresh air delivery of the fresh air machine according to the place information and the human information includes: According to the place information and the human information, determining the degree of crowding of people in the place, where the place information includes the length, width and height of the place space; obtaining the air change rate of the fresh air machine; according to the length, width and height of the place, the degree of crowding of people and the air change rate, determining the first fresh air volume, where: determining the first fresh air volume Pa according to Pa = L×W×H×E×J×S×K, L represents the length of the place, W represents the width of the place, H represents the height of the place, E represents the air change rate, J represents the degree of crowding of people, K is a preset adjustment coefficient with a value in the interval (0, 1], and S is a logic switch with a value in the interval [0, 1]; Determine a second fresh air volume according to the number of persons, the body shapes and behavior states of each person; wherein: obtain a state value corresponding to the behavior state of the person; according to Determine the second fresh air volume Pb, N represents the number of persons, i represents the person label, V i represents the body shape of the i-th person, V norm is a preset average body shape, M i represents the state value corresponding to the behavior state of the i-th person, and B is the fresh air volume required per person per unit time; Regulating the fresh air delivery of the fresh air machine according to the first fresh air volume and the second fresh air volume.

2. The method according to claim 1, characterized in that, The fresh air machine is communicatively connected to multiple cameras, and the multiple cameras are used to collect environmental sub-images of different specified areas; The obtaining an environmental image of the place where the fresh air machine is located includes: Obtaining environmental sub-images collected by multiple cameras respectively; Performing image fusion on the multiple environmental sub-images to obtain the environmental image of the place where the fresh air machine is located.

3. A control device for a fresh air machine, characterized in that, the control device includes: An environmental image acquisition unit for obtaining an environmental image of the place where the fresh air machine is located; A place information determination unit for determining the place information of the place based on the environmental image; A human information determination unit for performing human detection on the environmental image to determine the human information in the place; A fresh air regulation unit for regulating the fresh air delivery of the fresh air machine according to the place information and the human information, where the human information includes the number of people, the body shape and behavior state of each person; The fresh air regulation unit includes: A crowding degree determination module for determining the degree of crowding of people in the place according to the place information and the human information, where the place information includes the length, width and height of the place space; An air change rate determination module for obtaining the air change rate of the fresh air machine; The first fresh air volume determination module is configured to determine the first fresh air volume according to the length, width and height of the place, the degree of personnel density and the air change rate, where: the first fresh air volume Pa is determined according to Pa = L×W×H×E×J×S×K, L represents the length of the place, W represents the width of the place, H represents the height of the place, E represents the air change rate, J represents the degree of personnel density, K is a preset adjustment coefficient with a value in the interval (0, 1], and S is a logic switch with a value in the interval [0, 1]; The second fresh air volume determination module is configured to determine the second fresh air volume according to the number of people, the body types and behavior states of each person, where: obtain the state value corresponding to the behavior state of the people; according to Determine the second fresh air volume Pb, N represents the number of people, i represents the person label, V i Represents the body type of the i-th person, V norm Is the preset average body type, M i Represents the state value corresponding to the behavior state of the i-th person, and B is the fresh air volume required per person per unit time; The third regulation module is configured to regulate the fresh air delivery of the fresh air machine according to the first fresh air volume and the second fresh air volume.

4. An intelligent device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein, when the processor executes the computer program, the steps of the regulation method of the fresh air machine according to any one of claims 1 to 2 are implemented.

5. A computer-readable storage medium storing a computer program, wherein, when the computer program is executed by the processor, the steps of the regulation method of the fresh air machine according to any one of claims 1 to 2 are implemented.

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