Heating ventilation air conditioner temperature automatic control method based on Internet of Things

Abstract

The invention discloses a heating ventilation air conditioner temperature automatic control method based on the Internet of Things, and the method comprises the steps: transmitting / receiving adaptive control information among heating ventilation air conditioners based on communication networks of all heating ventilation air conditioners in an air conditioner group; a space coordinate system is established in the space where the air conditioner group is located, and the heating ventilation air conditioner coordinates and the personnel cluster coordinates in the space coordinate system are obtained; acquiring an environment temperature demand of a personnel cluster, establishing a corresponding relation between the personnel cluster coordinate area and the heating ventilation air conditioner, and obtaining a temperature regulation and control relation; based on the temperature regulation and control relation, the target output temperature of the heating ventilation air conditioner is obtained; based on the target output temperature of the heating ventilation air conditioner, the output temperature of the heating ventilation air conditioner is adjusted; and based on the environment temperature of the space where the air conditioner group is located, the temperature value of the heating ventilation air conditioner is adjusted in real time. The problem that in the prior art, a heating ventilation air conditioner cannot independently and accurately adjust the temperature is solved, independent adjustment of the output temperature of the air conditioner is achieved, and energy consumption is reduced.

Description

Technical Field

[0001] The present application relates to the field of automatic control, and specifically, to a method for automatic temperature control of a heating, ventilation and air conditioning system based on the Internet of Things. Background Art

[0002] In the current automatic temperature control of HVAC based on the Internet of Things, a common method is to adjust the output temperature of the HVAC based on sensors. This method has a good control effect on the output temperature adjustment of a single HVAC. In some controls for air-conditioning clusters, the control effect is poor. The reason is that it is difficult to divide the air-conditioning cluster space and flexibly adjust the output temperature of the HVAC based on the analysis of the temperature requirements of different spaces in the air-conditioning cluster to improve the temperature adjustment speed of the HVAC for different spaces. At the same time, this method often requires the air-conditioning temperature in the air-conditioning group to be the same. From the implementation point of view, it is the same as the control method for a single HVAC, which makes the energy consumed in the operation of the air-conditioning group gradually increase.

[0003] Therefore, how to achieve independent and precise temperature adjustment of all HVAC systems in an air-conditioning group based on the Internet of Things has become a technical problem that technical personnel in this field urgently need to solve. Summary of the invention

[0004] The present application discloses an automatic temperature control method for HVAC based on the Internet of Things to solve the problem in the prior art that it is difficult to independently and accurately adjust the temperature of the HVAC in an air-conditioning cluster, thereby ensuring the temperature speed of the HVAC in the air-conditioning group while well controlling the energy consumption of the air-conditioning.

[0005] Specific:

[0006] A method for automatic temperature control of a heating, ventilation and air conditioning system based on the Internet of Things, the method comprising:

[0007] Sending / receiving adaptive control information between HVACs based on a communication network of all HVACs in the HVAC group;

[0008] Establishing a spatial coordinate system in the space where the air conditioning group is located, and obtaining the HVAC coordinates and personnel cluster coordinates in the spatial coordinate system;

[0009] Obtaining the ambient temperature requirement of the personnel cluster, establishing a corresponding relationship between the personnel cluster coordinate area and the HVAC, and obtaining a temperature control relationship;

[0010] Based on the temperature control relationship, obtaining a target output temperature of the HVAC;

[0011] adjusting an output temperature of the HVAC based on a target output temperature of the HVAC;

[0012] Based on the ambient temperature of the space where the air conditioning group is located, the temperature value of the HVAC is adjusted in real time.

[0013] Optionally, the sending / receiving of adaptive control information between HVACs based on a communication network of all HVACs in the air conditioning group includes:

[0014] Based on the HVAC communication system, establishing a communication network within the air conditioning group;

[0015] Based on the communication network, setting an identification mark of the HVAC;

[0016] Based on the identification mark, establishing a communication identification code of the HVAC;

[0017] Based on the communication identification code, HVAC communication is performed within the air conditioning group, and a transmission / reception channel for adaptive control information between the HVACs is established.

[0018] Optionally, the establishing of a spatial coordinate system in the space where the air conditioning group is located, and obtaining the HVAC coordinates and the personnel cluster coordinates in the spatial coordinate system, includes:

[0019] Obtaining the ground center point of the space where the air conditioning group is located, wherein the ground center point is the origin of the space coordinate system;

[0020] Establishing the spatial coordinate system based on the origin of the spatial coordinate system;

[0021] Acquire the HVAC coordinates based on the arrangement height of the HVAC and the ground projection of the space where the air conditioning cluster is located;

[0022] Obtaining the coordinates of the personnel in the space where the air-conditioning group is located, and obtaining the personnel cluster state based on the coordinates of the personnel;

[0023] Based on the state of the personnel cluster, the area of ​​the personnel cluster and the coordinates of the center point of the personnel cluster are acquired, and the coordinates of the center point are the coordinates of the personnel cluster.

[0024] Optionally, the obtaining of the ambient temperature requirement of the personnel cluster, establishing a correspondence between the personnel cluster coordinate area and the HVAC, and obtaining a temperature control relationship includes:

[0025] Based on the ambient temperature requirement of the personnel cluster, acquiring ambient temperature data of the personnel cluster;

[0026] Obtaining the distance between the personnel cluster coordinates and the HVAC to obtain a sub-regional distance, comparing the sub-regional distance with a preset sub-regional distance, and when the sub-regional distance is not higher than the preset sub-regional distance, the HVAC corresponding to the sub-regional distance is a cooperatively controlled air conditioner;

[0027] Based on the distance between the cooperatively controlled air conditioner and the coordinates of the personnel cluster, acquiring the temperature control relationship;

[0028] Based on the cooperatively controlled air conditioner, an ambient temperature control air conditioner group of the personnel cluster is established, and the cooperatively controlled air conditioners in the air conditioner group establish a communication relationship to obtain a cooperatively controlled network;

[0029] Based on the cooperative control network and the temperature control relationship, the temperature control relationship of the HVAC is obtained.

[0030] Optionally, the acquiring of the distance between the personnel cluster coordinates and the HVAC to obtain a sub-regional distance, comparing the sub-regional distance with a preset sub-regional distance, and when the sub-regional distance is not higher than the preset sub-regional distance, the HVAC corresponding to the sub-regional distance is a cooperatively controlled air conditioner, including:

[0031] Acquire the coordinates of the personnel cluster and the coordinates of the HVAC to obtain relative position coordinates;

[0032] Based on the relative position coordinates, the sub-region spacing is obtained, and the determination equation of the sub-region spacing is:

[0033]

[0034] Among them, l i Indicates the interval between sub-areas; x i Indicates the horizontal coordinate of the coordinate point where the HVAC is located; y i Indicates the ordinate of the HVAC coordinate point; x e The horizontal coordinate of the coordinate point representing the edge of the personnel cluster area; e Indicates the ordinate of the coordinate point at the edge of the personnel cluster area; e indicates the coordinate point index at the edge of the personnel cluster area; f indicates the total number of coordinate point indexes at the edge of the personnel cluster area; h indicates the ground distance between the HVAC and air conditioning groups;

[0035] The sub-regional spacing is compared with the preset sub-regional spacing. When the sub-regional spacing is not higher than the preset sub-regional spacing, the HVAC corresponding to the sub-regional spacing is identified as a cooperatively controlled air conditioner.

[0036] Optionally, the acquiring the temperature control relationship based on the distance between the cooperatively controlled air conditioner and the coordinates of the personnel cluster includes:

[0037] Based on the initial environment temperature of the personnel cluster and the environment temperature requirement of the personnel cluster, obtaining a heat change value of the personnel cluster;

[0038] Based on the heat change value of the personnel cluster and the sub-regional spacing, the output heat of the HVAC is obtained. The output heat equation of the HVAC is:

[0039]

[0040] Among them, Q i represents the output heat of the i-th HVAC; T 1 represents the ambient temperature requirement of the personnel cluster; T 0 represents the initial ambient temperature of the personnel cluster; C represents the specific heat capacity of air; m represents the air quality of the personnel cluster; l i represents the regional spacing of the i-th HVAC; i represents the regional spacing retrieval of HVAC; j represents the total number of regional spacing retrievals of HVAC.

[0041] Optionally, obtaining the target output temperature of the HVAC based on the temperature control relationship includes:

[0042] Based on the temperature control relationship, the output temperature of each HVAC is obtained. The output temperature equation of the HVAC is:

[0043]

[0044] Among them, T i1 represents the output temperature of the i-th HVAC; Q i represents the output heat of the i-th HVAC; T 1 represents the ambient temperature requirement of the personnel cluster; T 0 represents the initial ambient temperature of the personnel cluster; C represents the specific heat capacity of air; m represents the air quality of the personnel cluster; l i represents the interval between the i-th HVAC regions; i represents the interval between the HVAC regions retrieval; j represents the total interval between the HVAC regions retrieval; k represents the heat transfer coefficient;

[0045] The calculation equation of the heat transfer coefficient is:

[0046]

[0047] Wherein, k represents the heat transfer coefficient; h represents the convective heat transfer coefficient, which is determined by an empirical formula; P represents the circumference of the air outlet of the air conditioner; represents the mass flow rate of air, and C represents the specific heat capacity of air.

[0048] Optionally, adjusting the output temperature of the HVAC based on the target output temperature of the HVAC includes:

[0049] Based on the HVAC coordinates, obtaining a relative configuration relationship of the HVAC;

[0050] Based on the relative configuration relationship, the heat input from the non-cooperative air conditioner to the personnel cluster in the personnel cluster is obtained to obtain interference heat;

[0051] Based on the interference heat, the output temperature of the HVAC is adjusted to obtain a target temperature, and the determination equation of the target temperature is:

[0052]

[0053] Among them, T t Indicates the target temperature; T i1 represents the output temperature of the i-th HVAC; Q a represents interference heat; C represents the specific heat capacity of air, and m represents the air quality of the personnel cluster;

[0054] Based on a transmission / reception channel of adaptive control information between the HVAC, the output temperature of the HVAC is adaptively adjusted.

[0055] Optionally, based on the relative configuration relationship, obtaining the heat input from the non-coordinated air conditioner in the personnel cluster to the personnel cluster to obtain interference heat includes:

[0056] Based on the spatial position of the HVAC and the coordinates of the personnel cluster, the distance between the HVAC and the personnel cluster is obtained to obtain the air conditioner-personnel distance. If the air conditioner-personnel distance is not higher than the preset air conditioner-personnel distance, the HVAC corresponding to the air conditioner-personnel distance is marked as an interfering air conditioner;

[0057] Based on the distance between the interfering air conditioner and the personnel cluster, the interfering heat is obtained, and the determination equation of the interfering heat is:

[0058]

[0059] Among them, Q a represents the interference heat; p represents the label retrieval of the interference air conditioner; q represents the total number of label retrievals of the interference air conditioner; C represents the specific heat capacity of air; m represents the air quality of the personnel cluster; T 1 represents the ambient temperature requirement of the personnel cluster; T a，p represents the output temperature of the pth interfering air conditioner; l a，p represents the distance between the pth interfering air conditioner and the personnel cluster; k represents the heat transfer coefficient.

[0060] Optionally, adjusting the temperature value of the HVAC in real time based on the ambient temperature of the space where the air conditioning group is located includes:

[0061] Obtaining the ambient temperature of the space where the air-conditioning group is located to obtain the current ambient temperature;

[0062] Adjusting the temperature adjustment range of the HVAC based on the difference between the current ambient temperature and the ambient temperature requirement of the personnel cluster;

[0063] Based on the temperature adjustment amplitude, the output temperature of the HVAC is adjusted to adjust the temperature value of the HVAC in real time.

[0064] The beneficial effects of this application include:

[0065] 1. Realize independent control of each HVAC. Based on the Internet of Things technology, the spatial location of each air conditioner in the air conditioner group is determined, and based on the correspondence between the HVAC and the personnel cluster, the HVAC that adjusts the temperature for the relevant personnel cluster is determined based on this relationship, and then the output temperature of the corresponding HVAC is adjusted to ensure personalized adjustment of the HVAC output temperature.

[0066] 2. Improved the spatial temperature adjustment speed of HVAC. Based on the division of personnel clusters, the ambient temperature requirements of each personnel cluster are determined, and the corresponding HVAC adjusts the temperature. At the same time, the temperature of the personnel cluster area is adjusted based on the output airflow of the HVAC. This can ensure that all personnel in the personnel cluster area are in the temperature environment of the HVAC, and also ensure that the ambient temperature of the area can be increased at a higher speed.

[0067] 3. Effective control of energy consumption is achieved. After determining the air conditioning output temperature of the personnel cluster area, the ambient temperature of the space where the air conditioning group is located is measured in real time, and then the temperature value of the HVAC is adjusted. Based on the analysis of the ambient temperature and the ambient temperature requirements of the personnel cluster, the temperature value of the HVAC is adjusted in real time based on the difference between the two to achieve the purpose of controlling energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments of the present application or the prior art. Obviously, the following description is only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. The drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific implementation methods, they are used to explain the present disclosure, but do not constitute a limitation to the present disclosure. In the drawings:

[0069] Figure 1 A flow chart of a method for automatic temperature control of HVAC based on the Internet of Things provided in an embodiment of the present application;

[0070] Figure 2 A schematic diagram of a HVAC communication network structure based on the Internet of Things provided in an embodiment of the present application;

[0071] Figure 3 A schematic diagram of an Internet of Things-based HVAC temperature automatic control and coordinated air conditioning network provided in an embodiment of the present application. DETAILED DESCRIPTION

[0072] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application. In addition, in the embodiments of the present application, "first", "second", etc. are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0073] At present, the control of HVAC output temperature has begun to be widely carried out based on the Internet of Things to automatically control the output temperature, including remote control of air conditioners, automatic maintenance of indoor temperature, etc. However, in the adjustment of air-conditioning groups, the same control scheme as that of a single HVAC is often adopted, that is: based on the monitoring and analysis of indoor temperature, the Internet of Things processes the space temperature to achieve unified control of the output temperature of all air conditioners in the indoor space. In this way, it is difficult to individually control the output temperature of the HVAC in the air-conditioning group based on the spatial distribution within the air-conditioning group, so as to achieve the effect of rapid temperature adjustment in different regions and saving energy.

[0074] In the technical solution of the present application, a corresponding relationship between a personnel cluster and a HVAC is established for the state of a personnel cluster in the space where the air-conditioning group is located, and the needs of the personnel cluster for the ambient temperature. Then, the HVAC that participates in the temperature adjustment of the personnel cluster area is selected, and the output temperatures of different HVACs are determined. On this basis, the output temperature of each HVAC is individually controlled. In addition, considering that it is impossible to independently set up different personnel clusters in the space where the air-conditioning group is located, the influence of other HVACs on the temperature of the personnel cluster is also considered. Based on this influence, the ambient temperature of the HVAC is further adjusted to obtain a more accurate HVAC output temperature value, and the temperature value of the HVAC is adjusted in real time based on the ambient temperature of the space where the air-conditioning group is located to reduce energy consumption.

[0075] This application discloses an automatic temperature control method for HVAC based on the Internet of Things, so as to achieve independent and precise adjustment of the output temperature of each HVAC in an air conditioning group, thereby improving the temperature adjustment speed and accuracy of the entire space. Specifically:

[0076] like Figure 1 As shown, a method for automatic temperature control of HVAC based on the Internet of Things is provided in an embodiment of the present application, comprising:

[0077] S110, sending / receiving adaptive control information between HVACs based on a communication network of all HVACs in the air conditioning group;

[0078] S120, establishing a spatial coordinate system in the space where the air conditioning group is located, and obtaining the HVAC coordinates and the personnel cluster coordinates in the spatial coordinate system;

[0079] S130, obtaining the ambient temperature requirement of the personnel cluster, establishing a corresponding relationship between the personnel cluster coordinate area and the HVAC, and obtaining a temperature control relationship;

[0080] S140, acquiring a target output temperature of the HVAC based on the temperature control relationship;

[0081] S150, adjusting the output temperature of the HVAC based on the target output temperature of the HVAC;

[0082] S160: Adjust the temperature value of the HVAC in real time based on the ambient temperature of the space where the air conditioning group is located.

[0083] The purpose of the above steps is to establish the ambient temperature demand relationship between HVAC and personnel clusters by considering the distribution locations of all HVAC in the air conditioning group and the ambient temperature demand in the entire space, and based on this correspondence, to achieve the output temperature of all HVAC in the air conditioning group, so as to achieve personalized output temperature adjustment for each HVAC. (This can be written in the temperature determination of the air conditioning, and the opening and closing of the air conditioning can also be determined according to the environmental requirements in the target environment)

[0084] Below, all the above steps will be explained separately, specifically:

[0085] As described in step S110, the purpose is to generate a communication network for all HVACs in the entire air conditioning group, especially to generate an information receiving / sending system between HVACs, so as to ensure that in the subsequent HVAC temperature automatic control process, information processing between HVACs can be directly realized, so as to adjust the output temperature based on the received information. Specifically:

[0086] S111. Based on the communication system of the HVAC, establish a communication network within the air conditioning group.

[0087] The purpose of this step is that for the entire air conditioning group, the group is constructed by multiple HVACs. By establishing the communication relationship between each HVAC, an overall communication network can be established, thereby ensuring that a specific corresponding relationship is established between different HVACs, such as Figure 2 As shown, it is a schematic diagram of a HVAC communication network structure based on the Internet of Things provided by an embodiment of the present application, wherein the dotted bidirectional arrows represent HVACs with direct communication capabilities, from which it can be determined that, in theory, each HVAC has the ability to communicate with other air conditioners. Of course, Figure 2 The figure shows the simplest network communication solution. In fact, the structure of the entire network may be more complex. For example, the first air conditioner in the upper right corner and the last air conditioner in the lower left corner also have direct communication capabilities.

[0088] Wherein, a communication device is provided in each HVAC in the air conditioning group to realize internal communication between the HVACs.

[0089] In some embodiments, a control center is set for the air conditioning group, based on which each HVAC establishes a communication relationship with the control center.

[0090] In some embodiments, HVACs in an air conditioning group are grouped, and one HVAC in each group is set as a control center in the group, so as to control the output temperatures of other HVACs in the group.

[0091] S112: Based on the communication network, setting an identification mark of the HVAC.

[0092] The purpose of this step is to identify the HVAC in the communication network of the entire air-conditioning group by setting the identification mark of the HVAC, so as to ensure that in the subsequent determination of the HVAC output temperature, the output temperature and the identification mark are associated with information to adjust the temperature of the specific HVAC.

[0093] Among them, a unique identification mark of the HVAC is established based on the number, location and other information of the HVAC.

[0094] In some embodiments, the factory-exit unique device identification code of the HVAC is used as an identification mark to obtain a more accurate processing result.

[0095] S113: Based on the identification mark, establish a communication identification code of the HVAC.

[0096] The purpose of this step is to convert the identification mark of the HVAC into a communication identification code in the internal communication of the entire air-conditioning group, thereby ensuring that the HVAC corresponding to the communication identification code can be accurately identified in the entire network during the communication within the air-conditioning group.

[0097] Among them, in internal communication, the identification information is processed according to the previous message in the communication message, so as to determine the current sender and receiver of the information.

[0098] Among them, for the output temperature of all HVAC, it is necessary to determine the data based on the identification mark therein, so that in the analysis of all messages, the sending and receiving air conditioners of the information can be accurately determined based on the previous messages.

[0099] Among them, for the collaborative control network established by the HVAC, all the preceding messages therein are identified, and in the temperature adjustment of each HVAC, for the established communication relationship, it is necessary to determine the communication relationship based on the identification identifier, and make corresponding adjustments to the output temperature of the HVAC based on the communication relationship.

[0100] S114. Based on the communication identification code, HVAC communication is performed within the air conditioning group, and a transmission / reception channel for adaptive control information between the HVACs is established.

[0101] The purpose of this step is to determine the communication relationship within the air-conditioning group by setting the communication identification code, so as to ensure that the communication relationship can be reasonably determined in the subsequent communication relationship.

[0102] Among them, for the communication identification code, it is necessary to be able to fully determine the HVAC communication relationship based on the currently established communication relationship, so as to establish the corresponding channel.

[0103] Among them, for all the communication relationships therein, all the communication relationships therein can be set and determined, and the communication relationship is a two-way communication relationship, based on which the setting of the specific communication direction is achieved.

[0104] Among them, a dedicated communication channel is set up for all HVAC units that may have a communication relationship, thereby improving the communication efficiency.

[0105] In some embodiments, based on the distance between HVACs and the preset distance relationship between HVACs, when the distance between HVACs is not less than the preset distance between HVACs, it is considered that there is no collaborative control relationship between the two HVACs over a certain area, and then there is no direct communication relationship between the two HVACs, and a communication channel is no longer established.

[0106] As described in step S120, the purpose of this step is to obtain the coordinates of all HVACs and the coordinates of the personnel cluster by establishing a spatial coordinate system of the space where the HVAC is located, and based on such coordinate parameters, calculate the distance between the HVAC and the personnel cluster, and obtain the center point coordinates and edge line coordinates of the personnel cluster, so as to obtain various distance parameters. Specifically:

[0107] S121. Obtain the ground center point of the space where the air-conditioning group is located, where the ground center point is the origin of the space coordinate system.

[0108] The purpose of this step is that the air outlets of the HVAC are at a certain height from the ground. Therefore, arranging the spatial coordinate system on the ground of the spatial coordinate system can provide a simpler way to obtain the coordinates of the air conditioner for subsequent spacing calculations.

[0109] A ground plan view of the space where the HVAC is located is obtained, and the ground center point is determined based on the shape and length of the plan view.

[0110] In some embodiments, a point on the wall and floor of the space where the air-conditioning group is located is the origin of the space coordinate system.

[0111] In some embodiments, any point on the ground of the space where the air-conditioning group is located is set as the origin of the space coordinate point.

[0112] In some embodiments, any point in the space where the air-conditioning group is located is set as a spatial coordinate point.

[0113] S122: Establish the spatial coordinate system based on the origin of the spatial coordinate system.

[0114] The purpose of this step is to set the spatial rectangular coordinate system after obtaining the origin of the spatial coordinate system, and then determine the position of the HVAC or the air outlet position based on the spatial rectangular coordinate system to achieve accurate setting of the HVAC position.

[0115] Among them, the spatial coordinate system in the entire space is established with the already obtained origin of the spatial coordinate system.

[0116] S123. Acquire the HVAC coordinates based on the arrangement height of the HVAC and the ground projection of the space where the air conditioning cluster is located.

[0117] The purpose of this step is to obtain the HVAC coordinates based on the position of the HVAC after the spatial rectangular coordinate system is created, so as to determine the distance between the HVAC and each area in the entire space.

[0118] Wherein, the height of the HVAC air outlet is obtained, and the height value of the HVAC air outlet is the z-axis coordinate of the HVAC coordinate.

[0119] The layout position of the HVAC on the ground is obtained, and based on the position parameters, the x-axis and y-axis coordinates of the HVAC can be obtained.

[0120] After all coordinate values ​​are obtained, the coordinates of the HVAC are established.

[0121] S124, obtaining the coordinates of the persons in the space where the air-conditioning group is located, and obtaining the state of the person cluster based on the coordinates of the persons.

[0122] The purpose of this step is to obtain the coordinates by acquiring the positions of the personnel in the space where the air-conditioning group is located, and then obtain the personnel cluster status based on the coordinate parameters.

[0123] Wherein, by setting a positioning device, the position of the person is determined, thereby determining the coordinates of the person's position.

[0124] Among them, the distance between each position coordinate and all other coordinate points is obtained, and the personnel whose distance value is not higher than the preset distance value are set in the same personnel cluster, and all the personnel coordinates therein are set as the personnel coordinates in the personnel cluster.

[0125] The coordinates of the outermost person in the personnel cluster are obtained, and a circle is drawn based on the coordinates of the outermost person. The area corresponding to the circle is the personnel cluster.

[0126] The edge coordinates of the personnel cluster are obtained, and the coordinates can be evenly selected on the edge of the circle to obtain the coordinate points of the personnel cluster.

[0127] In some embodiments, edge coordinates of a personnel cluster are randomly selected to obtain personnel cluster coordinate points.

[0128] In some embodiments, all coordinate points of persons in a person cluster are identified as person cluster coordinates, and the positions of persons are determined based on the coordinate points.

[0129] S125. Based on the state of the personnel cluster, obtain the area of ​​the personnel cluster and the coordinates of the center point of the personnel cluster, where the coordinates of the center point are the coordinates of the personnel cluster.

[0130] The purpose of this step is to obtain the coordinates of the center point of the personnel cluster as the coordinates of the personnel cluster. At this time, a simpler description of the personnel cluster can be achieved, so that in the subsequent distance calculation, a simplified calculation of the distance can also be achieved.

[0131] Wherein, based on the obtained coordinates of the personnel cluster, the coordinates of the personnel cluster are directly obtained based on the circular edge line of the personnel cluster.

[0132] In some embodiments, all personnel coordinates are obtained, and the numerical means of the x-axis and y-axis of the personnel coordinates are calculated, and the obtained values ​​are used as the center point coordinates of the personnel cluster.

[0133] Among them, based on the distance between the coordinates of the personnel cluster and the edge line of the personnel cluster, the radius of the personnel cluster area is obtained, and then the area of ​​the personnel cluster on the ground projection is calculated based on the radius.

[0134] As described in step S130, the purpose of this step is to obtain the ambient temperature requirements of the personnel cluster, select the HVAC that needs to participate in the temperature adjustment of the personnel cluster, and determine the temperature values ​​of all HVACs participating in the temperature adjustment of the personnel cluster based on the ambient temperature requirements of the personnel cluster. Specifically:

[0135] S131. Acquire ambient temperature data of the personnel cluster based on the ambient temperature requirement of the personnel cluster.

[0136] The purpose of this step is to obtain the ambient temperature requirements of all personnel in the personnel cluster for the area in which they are located, so as to obtain the ambient temperature value through data processing. The reason for adopting this solution is that in some cases, different personnel may have different temperature demand instructions issued in the area, which will cause signal resistance in the output temperature control process of the HVAC. Therefore, further adjustments are needed.

[0137] The ambient temperature requirement sent by the personnel cluster is received by the entire network system, and then all temperature parameters therein are determined, and the temperature average is obtained as the ambient temperature requirement of the personnel cluster.

[0138] The ambient temperature requirements of the personnel cluster are judged, and the variance of each ambient temperature requirement is obtained. When the variance exceeds the preset variance, a personnel cluster replacement suggestion is sent to the person.

[0139] In some embodiments, when the variance of the ambient temperature requirement of a person exceeds a preset variance, an ambient temperature requirement adjustment suggestion is sent to the person.

[0140] Among them, when the variance of the ambient temperature demand of a certain person exceeds the preset variance, and the person does not replace the personnel group and does not adjust the ambient temperature demand, a calculation weight is set for the ambient temperature demand of each person, and the demand weight of the person is appropriately increased, and then the temperature mean is calculated and set as the ambient temperature data of the personnel cluster.

[0141] S132. Obtain the distance between the coordinates of the personnel cluster and the HVAC to obtain a sub-regional distance, compare the sub-regional distance with a preset sub-regional distance, and when the sub-regional distance is not higher than the preset sub-regional distance, the HVAC corresponding to the sub-regional distance is a cooperatively controlled air conditioner.

[0142] The purpose of this step is to obtain the ambient temperature requirements of the personnel cluster, and then analyze the temperature adjustment process of the personnel cluster, and adjust the HVAC temperature involved in the ambient temperature adjustment process of the personnel cluster accordingly, so as to determine the output temperature of different HVACs. Specifically:

[0143] S1321. Obtain the coordinates of the personnel cluster and the coordinates of the HVAC to obtain relative position coordinates.

[0144] The purpose of this step is to better analyze the relative position between the HVAC and the personnel cluster based on the obtained relative position coordinates, and then calculate the distance between the personnel cluster and the HVAC, and select the HVAC based on the distance.

[0145] Among them, all coordinates obtained in the edge line of the personnel cluster are obtained, and the coordinates of the HVAC are obtained, so as to establish a relative position coordinate set.

[0146] In some embodiments, only the distance between the personnel cluster coordinates and the HVAC is calculated to obtain the relative position coordinates.

[0147] S1322. Based on the relative position coordinates, obtain the sub-region spacing, where the equation for determining the sub-region spacing is:

[0148]

[0149] Among them, l i Indicates the interval between sub-areas; xi Indicates the horizontal coordinate of the coordinate point where the HVAC is located; y i Indicates the ordinate of the HVAC coordinate point; x e The horizontal coordinate of the coordinate point representing the edge of the personnel cluster area; e Represents the ordinate of the coordinate point at the edge of the personnel cluster area; e represents the coordinate point index at the edge of the personnel cluster area; f represents the total number of coordinate point indexes at the edge of the personnel cluster area; h represents the ground distance between the HVAC and air conditioning groups.

[0150] The purpose of this step is to calculate the distance between personnel clusters and HVAC to obtain the distance between different areas. At this time, based on the distribution of personnel clusters, the HVAC that needs to participate in temperature adjustment in the temperature control process for different personnel clusters in the current air-conditioning group can be obtained.

[0151] The coordinates of all edge lines in the personnel cluster are obtained, and then the branch line length is calculated based on the obtained coordinates. The obtained branch line length is the sub-region spacing.

[0152] In some embodiments, when only the coordinates of the personnel cluster are used, there is no need to calculate the mean of the horizontal and vertical coordinates, and the horizontal and vertical coordinates of the personnel cluster can be directly obtained to calculate the distance between the different regions.

[0153] S1323: Compare the sub-regional spacing with the preset sub-regional spacing. When the sub-regional spacing is not higher than the preset sub-regional spacing, the HVAC corresponding to the sub-regional spacing is identified as a cooperatively controlled air conditioner.

[0154] The purpose of this step is to obtain the temperature adjustment method used for the HVAC of the personnel cluster from all HVACs, and to determine the specific HVAC involved in the temperature adjustment.

[0155] Among them, for the preset sub-regional spacing, an air conditioning group performs fixed selection, and compares the sub-regional spacing with the preset sub-regional spacing to obtain a HVAC with a sub-regional spacing that meets the application requirements.

[0156] In some embodiments, the mean of the obtained sub-regional spacings is calculated, and then the variance of each sub-regional spacing is calculated, and the sub-regional spacing is determined based on the variance.

[0157] In some embodiments, the obtained sub-regional spacing is averaged, and then the difference between the sub-regional spacing and the average is obtained. When the difference requirement is met, the HVAC corresponding to the sub-regional spacing is set as the cooperatively controlled air conditioner.

[0158] S133. Acquire the temperature control relationship based on the distance between the cooperatively controlled air conditioner and the coordinates of the personnel cluster.

[0159] The purpose of this step is to calculate the HVAC temperature corresponding to each sub-area spacing based on the spacing of the coordinated control and personnel cluster coordinates after the coordinated control air conditioners have been obtained, so that in the specific temperature adjustment, the output temperature of different coordinated air conditioners can be determined based on the temperature adjustment process. Specifically:

[0160] S1331. Based on the initial environment temperature of the personnel cluster and the environment temperature requirement of the personnel cluster, obtain a heat change value of the personnel cluster.

[0161] The purpose of this step is that, during the operation of the coordinated air conditioner, each output temperature will decrease significantly as the distance between the sub-areas increases. At the same time, since multiple air conditioners are used to make joint adjustments for the personnel cluster, a limit value needs to be set for it. This limit value is actually difficult to determine directly based on the temperature parameters. Considering that the calorific value can be coordinated by multiple HVAC air conditioners during the adjustment of the calorific value, the calorific value is used as the limit value here to determine the output temperature.

[0162] Wherein, based on the temperature sensor, the initial ambient temperature of the personnel cluster area in the specific temperature adjustment is obtained.

[0163] The ambient temperature requirement of the personnel cluster is obtained, and the temperature adjustment target of the personnel cluster in the temperature adjustment of the entire personnel cluster is obtained.

[0164] Among them, based on the initial ambient temperature and the ambient temperature requirement of the personnel cluster, the heat change value in the personnel cluster is calculated when the two temperature values ​​change. The calculation equation of the heat change value is:

[0165] Q=C·m·|ΔT| (2),

[0166] Among them, Q represents the heat change value; C represents the specific heat capacity of air; m represents the air quality of the personnel cluster; ΔT represents the difference between the initial ambient temperature and the ambient temperature requirement of the personnel cluster.

[0167] In the calculation of the air quality of the personnel cluster, the volume is obtained based on the area and height of the personnel cluster, and then multiplied by the air density to obtain the air quality.

[0168] S1332: Based on the heat change value of the personnel cluster and the distance between the sub-regions, the output heat of the HVAC is obtained. The output heat equation of the HVAC is:

[0169]

[0170] Among them, Q irepresents the output heat of the i-th HVAC; T 1 represents the ambient temperature requirement of the personnel cluster; T 0 represents the initial ambient temperature of the personnel cluster; C represents the specific heat capacity of air; m represents the air quality of the personnel cluster; l i represents the regional spacing of the i-th HVAC; i represents the regional spacing retrieval of HVAC; j represents the total number of regional spacing retrievals of HVAC.

[0171] The purpose of this step is to determine the amount of heat that needs to be delivered to the personnel cluster during the specific operation of each co-controlled air conditioner in the temperature control of the personnel cluster, based on the distance between each co-controlled air conditioner and the personnel cluster. In this way, the limited parameters of the HVAC in the temperature adjustment process are obtained.

[0172] Among them, for the HVAC participating in the temperature adjustment of the personnel cluster, the larger the value of the sub-regional spacing is, the higher the heat provided by the air conditioner is. In the temperature adjustment of the personnel cluster, the larger the value of the sub-regional spacing is, the smaller the weight of the output heat is.

[0173] Among them, equation (3) is essentially equivalent to the weighted product of the heat change value of the personnel cluster and the heat provided by the i-th HVAC. For the determination of the weight, the mean part is the set standard value. By adopting this weight calculation scheme, it can be ensured that the smaller the interval between the sub-regions, the larger the weight, and the obtained weight can be directly used as the proportion of the heat change value.

[0174] S134: Based on the cooperatively controlled air conditioner, an ambient temperature control air conditioner group of the personnel cluster is established, and the cooperatively controlled air conditioners in the air conditioner group establish a communication relationship to obtain a cooperatively controlled network. Figure 3 As shown in FIG. 1 , a schematic diagram of a HVAC temperature automatic control cooperative air conditioning network based on the Internet of Things is provided in an embodiment of the present application. Figure 2 The HVAC distribution pattern in the figure is used to divide the cooperative air conditioners. The dotted line part represents the decomposition space for the air conditioner group, which are three spaces A, B and C. There is a personnel cluster in each space. After the area is divided, the communication relationship between different groups is removed. This method can avoid channel congestion problems to the greatest extent. At the same time, the cooperative control network connection relationship in each space is relatively simple. The double-arrow dotted line part is the communication relationship. It should be noted that for the obtained cooperative control air conditioner interval, if it is found that there is no cooperative control network connection relationship between two air conditioners, a new cooperative control network connection relationship can be established between the two to improve the communication efficiency of each HVAC in the cooperative control network.

[0175] The purpose of this step is that after the cooperative air conditioner has been selected, all the cooperative air conditioners can be set to the same regional communication network to obtain a cooperative network. Based on the cooperative network, only internal communication of the cooperative air conditioner can be realized, thereby increasing the communication speed in the cooperative network, and the output temperature of the cooperative air conditioner can be adjusted automatically based on the cooperative network.

[0176] Among them, for the acquired cooperatively controlled air conditioner, an identification mark in the cooperatively controlled air conditioner is obtained.

[0177] Among them, for the identification identifier of the cooperative air conditioner, all identification identifiers are constructed into the same cooperative control network, and in the established communication message, the identification message contains the identification identifier and other message information in the cooperative control network, and these two types of information are integrated. All message information therein is sent within the air conditioning group network. When other HVAC air conditioners cannot recognize the identification identifier and other message information in the cooperative control network, other HVAC air conditioners determine that they do not belong to the cooperative control network and no longer receive all information of the temperature control equation sent by the cooperative air conditioner.

[0178] S135. Based on the cooperative control network and the temperature control relationship, obtain the temperature control relationship of the HVAC.

[0179] The purpose of this step is to obtain the temperature control relationship of the cooperatively controlled air conditioners, obtain the output temperature value of each cooperatively controlled air conditioner, and on this basis obtain the corresponding relationship between the output temperature value and the cooperatively controlled air conditioners.

[0180] Among them, a corresponding relationship between the cooperatively controlled air conditioner and the output temperature value is established, and then based on the cooperatively controlled network, the corresponding output temperature value signal is sent to the corresponding cooperatively controlled air conditioner.

[0181] Wherein, for the output temperature adjustment need of each cooperatively controlled air conditioner, the temperature is automatically adjusted in the entire cooperatively controlled network, thereby obtaining the adjusted temperature parameters.

[0182] As described in step S140, the purpose of this step is to determine the temperature control relationship and, based on the value, obtain the target output temperature of the collaboratively controlled HVAC, so that the HVAC can collaboratively control the temperature requirements of the personnel cluster based on the target output temperature value.

[0183] S141. Based on the temperature control relationship, the output temperature of each HVAC is obtained. The output temperature equation of the HVAC is:

[0184]

[0185] Among them, T i1 represents the output temperature of the i-th HVAC; Q irepresents the output heat of the i-th HVAC; T 1 represents the ambient temperature requirement of the personnel cluster; T 0 represents the initial ambient temperature of the personnel cluster; C represents the specific heat capacity of air; m represents the air quality of the personnel cluster; l i represents the regional spacing of the i-th HVAC; i represents the regional spacing retrieval of HVAC; j represents the total number of regional spacing retrievals of HVAC; k represents the heat transfer coefficient.

[0186] The purpose of this step is to calculate the temperature demand of the personnel cluster. Since multiple cooperative air conditioners are used for collaborative control, and the temperature output by each air conditioner for the personnel cluster area has been determined, it is necessary to analyze the output temperature of the cooperative air conditioner based on this parameter, and only then can the specific temperature of the air conditioner be determined.

[0187] The specific acquisition process of equation (4) is described in detail:

[0188] Among them, the temperature of the air outlet of the air conditioner and the temperature parameters after the wind reaches a certain distance after being transmitted over a certain distance can be determined according to the following equation:

[0189]

[0190] Among them, T(l i ) indicates the air conditioner output temperature at the arrival distance l i Temperature at time; T 0 represents the initial ambient temperature of the personnel cluster; T i1 represents the output temperature of the i-th HVAC; k represents the heat transfer coefficient; l i Represents the sub-area spacing of the i-th HVAC.

[0191] The relationship between temperature and heat is as described in equation (2) and will not be repeated here.

[0192] Among them, the relationship between temperature and heat, and the relationship between temperature and distance are integrated to obtain:

[0193] Q i =C·m·[T(l i )-T 0 ] (6),

[0194] Among them, Q i represents the output heat of the i-th HVAC; T(l i ) indicates the air conditioner output temperature at the arrival distance l i Temperature at time; T 0represents the initial ambient temperature of the personnel cluster; C represents the specific heat capacity of air; m represents the air quality of the personnel cluster.

[0195] Among them, regarding the variable T(l i ), can be determined as:

[0196]

[0197] Among them, by substituting equation (7) into equation (5), the content of equation (4) can be obtained, that is, determining the output temperature of the HVAC.

[0198] S142, the calculation equation of the heat transfer coefficient is:

[0199]

[0200] Wherein, k represents the heat transfer coefficient; h represents the convective heat transfer coefficient, which is determined by an empirical formula; P represents the circumference of the air outlet of the air conditioner; represents the mass flow rate of air, and C represents the specific heat capacity of air.

[0201] The purpose of this step is that in equation (4), the unknown parameter is k, so for the calculation of k, it is necessary to determine the relevant parameters therein to obtain the result.

[0202] Among them, regarding the convective heat transfer coefficient, there are already a variety of empirical formulas in current research. Therefore, the empirical formula can be directly used for calculation, and this application does not limit this parameter.

[0203] All other parameters in the equation can also be determined based on the specific parameters of HVAC. In specific processing, only simple measurements are needed to obtain parameter results.

[0204] As described in step S150, the purpose of this step is that during the operation of the air conditioning group, the air conditioning is obviously in the indoor space, which will result in that during the specific operation of the acquired cooperative air conditioning, other HVAC air conditioning will also have a certain impact on the internal heat of the personnel cluster. Therefore, in order to reduce the energy consumption of the air conditioning and improve the output temperature control accuracy of the air conditioning, it is also necessary to propose the interference heat generated in the personnel cluster space for result processing. Specifically:

[0205] S151. Based on the HVAC coordinates, obtain a relative configuration relationship of the HVAC.

[0206] The purpose of this step is to obtain the coordinates of all HVACs and the distances between all HVACs and personnel clusters, so as to determine all HVACs that may generate interference heat during the temperature adjustment process of the personnel cluster, so as to eliminate the interference heat.

[0207] Among them, the HVAC coordinates in the entire air conditioning group are obtained, and then all the parameters in it are calculated.

[0208] Among them, based on the HVAC coordinates, the relative position of the HVAC and the coordinates of the personnel cluster is obtained, so that the parameters of the HVAC are obtained in this way.

[0209] In some embodiments, based on the coordinates of the HVAC, a relative correspondence between the HVAC outlets can be directly established, and only the HVACs that can be in a completely corresponding state are regarded as HVACs with a relative configuration relationship, thereby establishing a relatively configured HVAC group.

[0210] S152. Based on the relative configuration relationship, obtain the heat input from the non-cooperative air conditioner to the personnel cluster in the personnel cluster to obtain interference heat.

[0211] The purpose of this step is to treat the output heat of other non-coordinated air conditioners to the personnel cluster as interference heat for the relative configuration relationship of the HVAC, so that in subsequent processing, the influence of the interference heat on the HVAC output temperature can be eliminated. Specifically:

[0212] S1521. Based on the spatial position of the HVAC and the coordinates of the personnel cluster, the distance between the HVAC and the personnel cluster is obtained to obtain the air conditioner-personnel distance. If the air conditioner-personnel distance is not higher than the preset air conditioner-personnel distance, the HVAC corresponding to the air conditioner-personnel distance is marked as an interfering air conditioner.

[0213] The purpose of this step is that for the HVAC group, when some air conditioners in the group are too far away from the location of the personnel cluster, the heat output by this type of HVAC to the personnel cluster area can be basically ignored. Of course, theoretically, it can be considered that no heat is input at all only when the air conditioner and the personnel cluster are infinitely far away. However, it is found in practice that as long as a certain distance is reached, the impact on the temperature can be basically ignored. Therefore, the obtained air conditioner-personnel distance is compared with the preset air conditioner-personnel distance to determine the interfering air conditioner.

[0214] The preset air conditioner-personnel distance can be determined based on equation (5), where the air conditioner output temperature is within the reach distance l. iThe preset temperature is determined, for example, the temperature value is set to 1°C, then the corresponding distance l can be calculated. i The parameter corresponding to this value is the preset air conditioner-personnel distance.

[0215] Among them, the distances between all HVAC and personnel cluster coordinates are obtained to obtain the distance results.

[0216] In some embodiments, only HVACs whose air outlets are directly opposite to each other need to be obtained as candidate interfering air conditioners. This approach can improve the quality of obtaining interfering air conditioners to a greater extent.

[0217] In some embodiments, HVACs whose air outlets are not in the same straight line as the cooperative air conditioner outlets and other HVAC outlets and whose air outlet directions do not have an angle are regarded as irrelevant air conditioners, that is, such air conditioners are neither cooperative air conditioners nor non-cooperative air conditioners.

[0218] S1522. Obtain the interference heat based on the distance between the interfering air conditioner and the personnel cluster. The determination equation of the interference heat is:

[0219]

[0220] Among them, Q a represents the interference heat; p represents the label retrieval of the interference air conditioner; q represents the total number of label retrievals of the interference air conditioner; C represents the specific heat capacity of air; m represents the air quality of the personnel cluster; T 1 represents the ambient temperature requirement of the personnel cluster; T a，p represents the output temperature of the pth interfering air conditioner; l a，p represents the distance between the pth interfering air conditioner and the personnel cluster; k represents the heat transfer coefficient.

[0221] The purpose of this step is to calculate the heat input by the non-cooperative air conditioner to the personnel cluster, so as to obtain all the interference heat existing in the personnel cluster. In the subsequent processing, the output temperature of the cooperative air conditioner can be further adjusted after eliminating the interference heat.

[0222] Among them, in the setting of the entire air-conditioning group, all the HVACs therein have actually obtained the output temperature parameters, that is, the output temperature in the entire equation has been determined. Therefore, in the determination of the interference heat, it is only necessary to use the relationship equation between temperature and distance for determination without introducing other parameters.

[0223] In some embodiments, a certain personnel cluster is first taken as the analysis object to obtain the output temperature after adjustment. However, since the cooperative air-conditioning in the personnel cluster is likely to be associated with other personnel clusters, the output temperature of the cooperative air-conditioning corresponding to other personnel clusters needs to be determined during the processing. Considering that this method is likely to cause the cooperative air-conditioning corresponding to multiple personnel clusters to be unable to converge to a certain value during temperature adjustment, it is necessary to set convergence parameters, or obtain the correlation relationship between the cooperative air-conditioning corresponding to different personnel clusters, and obtain the correlation degree, and the cooperative air-conditioning with the largest correlation degree will not be adjusted in temperature.

[0224] S153: Based on the interference heat, the output temperature of the HVAC is adjusted to obtain a target temperature. The determination equation of the target temperature is:

[0225]

[0226] Among them, T t Indicates the target temperature; T i1 represents the output temperature of the i-th HVAC; Q a represents interference heat; C represents the specific heat capacity of air, and m represents the air quality of the personnel cluster.

[0227] The purpose of this step is to convert the generated interference heat into temperature parameters in the entire personnel cluster space, and then make corresponding adjustments to the obtained cooperatively controlled air-conditioning temperature based on the temperature parameters.

[0228] The interference heat can be directly processed based on the conversion equation between temperature and heat.

[0229] In some embodiments, for the interference heat that has been obtained, the heat that the cooperatively controlled air conditioner needs to input to the personnel cluster is determined, and then the heat that each cooperatively controlled air conditioner needs to input to the personnel cluster area is re-determined, and the output temperature parameters are obtained based on the calculation results, and the results are comprehensively recalculated based on this method.

[0230] S154: Adaptively adjust the output temperature of the HVAC based on the transmission / reception channel of the adaptive control information between the HVAC.

[0231] The purpose of this step is to adjust the output temperature parameters between the cooperatively controlled air conditioners based on the established channels between the HVAC air conditioners. In this way, parameter control can be performed completely based on the currently obtained parameters.

[0232] Among them, after the cooperative air conditioner obtains the output temperature parameter that needs to be executed based on the interference heat, it can obtain the processing result of the parameter, so that under the action of the parameter, the result that needs to be processed is obtained, and the result is synchronized in the entire cooperative air conditioner group.

[0233] In some embodiments, each HVAC has computing capabilities, in which case it directly performs the corresponding operations and outputs, while recording its own output temperature.

[0234] As described in step S160, the purpose of this step is that the continuous operation of the air conditioning group will have an overall impact on the temperature of the entire indoor space. Therefore, based on the temperature parameter, the output temperature of the corresponding cooperative air conditioning in the personnel cluster is adjusted to ensure that the temperature of the air conditioning develops in a more energy-saving direction, thereby reducing the energy consumption during the operation of the air conditioning group. Specifically:

[0235] S161. Obtain the ambient temperature of the space where the air-conditioning group is located to obtain the current ambient temperature.

[0236] The purpose of this step is to obtain the current ambient temperature in the area for the space where the entire air-conditioning group is located, and the obtained ambient temperature can be regarded as the interference heat source of all personnel clusters for calculation, thereby realizing real-time adjustment of the HVAC output temperature.

[0237] The ambient temperature of the space where the air-conditioning group is located is obtained by using a temperature sensor or other device, thereby obtaining the ambient temperature in the space.

[0238] In some embodiments, based on the air outlet temperatures obtained by the HVAC in the air conditioning group, the average of all air outlet temperatures in the entire air conditioning group is calculated, and the obtained average is identified as the ambient temperature of the space where the air conditioning group is located.

[0239] In some embodiments, for each HVAC in the air-conditioning group, the variance of each HVAC is obtained. When the variance is too large, the cooperatively controlled air-conditioning group corresponding to the HVAC is determined, and then the temperatures obtained by other HVACs in the cooperatively controlled air-conditioning group are determined. When the variances of multiple cooperatively controlled air-conditioners are higher than the preset variance, the output temperature of the cooperatively controlled air-conditioning group remains unchanged.

[0240] S162: Adjust the temperature adjustment range of the HVAC based on the difference between the current ambient temperature and the ambient temperature requirement of the personnel cluster.

[0241] The purpose of this step is to obtain the difference between the current ambient temperature and the ambient temperature requirements of the personnel cluster, and to identify the obtained current ambient temperature as the initial ambient temperature and recalculate based on this value.

[0242] The acquired ambient temperature is identified as the initial ambient temperature in the entire space, and the output temperature of the HVAC is further adjusted based on the initial ambient temperature to obtain a new output temperature, and then adjusted based on the new output temperature.

[0243] In some embodiments, the current ambient temperature is identified as a source of interference heat for the occupant cluster and is calculated, and then a recalculation is performed based on the interference heat, thereby recalculating the temperature of the HVAC system to obtain an adjustment range.

[0244] In some embodiments, the current ambient temperature is identified as the source of interference heat of the personnel cluster, and the temperature adjustment amplitude is directly calculated based on the interference heat, and the calculation method is the same as the relationship equation between heat and temperature mentioned above.

[0245] S163: Adjust the output temperature of the HVAC based on the temperature adjustment amplitude to adjust the temperature value of the HVAC in real time.

[0246] The purpose of this step is to directly perform automatic adjustments on the HVAC by obtaining the temperature adjustment range, so that when the parameter is obtained, the output temperature of the HVAC can be adjusted based on the temperature adjustment range.

[0247] After the temperature adjustment range is obtained, the output temperature of the HVAC is increased or decreased based on the current cooling or heating working state of the HVAC.

[0248] In some embodiments, it is not necessary to obtain the temperature adjustment range of the HVAC, but a calculation result is directly obtained based on the temperature requirements of the personnel cluster and the current ambient temperature, and the output temperature of the HVAC is adjusted to the output temperature value directly based on the calculation result.

[0249] The beneficial effects of this application include:

[0250] 1. Realize independent control of each HVAC. Based on the Internet of Things technology, the spatial location of each air conditioner in the air conditioner group is determined, and based on the correspondence between the HVAC and the personnel cluster, the HVAC that adjusts the temperature for the relevant personnel cluster is determined based on this relationship, and then the output temperature of the corresponding HVAC is adjusted to ensure personalized adjustment of the HVAC output temperature.

[0251] 2. Improved the spatial temperature adjustment speed of HVAC. Based on the division of personnel clusters, the ambient temperature requirements of each personnel cluster are determined, and the corresponding HVAC adjusts the temperature. At the same time, the temperature of the personnel cluster area is adjusted based on the output airflow of the HVAC. This can ensure that all personnel in the personnel cluster area are in the temperature environment of the HVAC, and also ensure that the ambient temperature of the area can be increased at a higher speed.

[0252] 3. Effective control of energy consumption is achieved. After determining the air conditioning output temperature of the personnel cluster area, the ambient temperature of the space where the air conditioning group is located is measured in real time, and then the temperature value of the HVAC is adjusted. Based on the analysis of the ambient temperature and the ambient temperature requirements of the personnel cluster, the temperature value of the HVAC is adjusted in real time based on the difference between the two to achieve the purpose of controlling energy consumption.

[0253] A person of ordinary skill in the art can understand that all or part of the steps of implementing the above method embodiments can be completed by hardware related to computer program instructions, and the aforementioned computer program can be stored in a non-volatile storage medium. When the computer program is executed, it executes the steps of the above method embodiments. Alternatively, if the above-mentioned integrated unit of the present invention is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a non-volatile storage medium. Based on this understanding, the technical solution of the embodiment of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. The computer software product is stored in a non-volatile storage medium and includes a number of instructions for enabling an electronic device (which can be a personal computer, a server, a network device, etc.) to execute all or part of the methods described in each embodiment of the present invention.

[0254] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A method for automatic temperature control of HVAC based on the Internet of Things, characterized in that: The automatic control method comprises: Sending / receiving adaptive control information between HVACs based on a communication network of all HVACs in the HVAC group; Establishing a spatial coordinate system in the space where the air conditioning group is located, and obtaining the HVAC coordinates and personnel cluster coordinates in the spatial coordinate system; Obtaining the ambient temperature requirement of the personnel cluster, establishing a corresponding relationship between the personnel cluster coordinate area and the HVAC, and obtaining a temperature control relationship; Based on the temperature control relationship, obtaining a target output temperature of the HVAC; adjusting an output temperature of the HVAC based on a target output temperature of the HVAC; Based on the ambient temperature of the space where the air conditioning group is located, the temperature value of the HVAC is adjusted in real time.

2. The method for automatic temperature control of HVAC based on the Internet of Things according to claim 1 is characterized in that: The communication network based on all HVACs in the air conditioning group, sending / receiving adaptive control information between HVACs, includes: Based on the HVAC communication system, establishing a communication network within the air conditioning group; Based on the communication network, setting an identification mark of the HVAC; Based on the identification mark, establishing a communication identification code of the HVAC; Based on the communication identification code, HVAC communication is performed within the air conditioning group, and a transmission / reception channel for adaptive control information between the HVACs is established.

3. The HVAC temperature automatic control method based on the Internet of Things according to claim 1 is characterized in that: The step of establishing a spatial coordinate system in the space where the air conditioning group is located and obtaining the HVAC coordinates and the personnel cluster coordinates in the spatial coordinate system includes: Obtaining the ground center point of the space where the air conditioning group is located, wherein the ground center point is the origin of the space coordinate system; Establishing the spatial coordinate system based on the origin of the spatial coordinate system; Acquire the HVAC coordinates based on the arrangement height of the HVAC and the ground projection of the space where the air conditioning cluster is located; Acquire the coordinates of the persons in the space where the air-conditioning group is located, and acquire the state of the person cluster based on the coordinates of the persons; Based on the state of the personnel cluster, the area of ​​the personnel cluster and the coordinates of the center point of the personnel cluster are acquired, and the coordinates of the center point are the coordinates of the personnel cluster.

4. The HVAC temperature automatic control method based on the Internet of Things according to claim 1 is characterized in that: The step of obtaining the ambient temperature requirement of the personnel cluster, establishing a corresponding relationship between the personnel cluster coordinate area and the HVAC, and obtaining a temperature control relationship includes: Based on the ambient temperature requirement of the personnel cluster, acquiring ambient temperature data of the personnel cluster; Obtaining the distance between the personnel cluster coordinates and the HVAC to obtain a sub-regional distance, comparing the sub-regional distance with a preset sub-regional distance, and when the sub-regional distance is not higher than the preset sub-regional distance, the HVAC corresponding to the sub-regional distance is a cooperatively controlled air conditioner; Based on the distance between the cooperatively controlled air conditioner and the coordinates of the personnel cluster, acquiring the temperature control relationship; Based on the cooperatively controlled air conditioner, an ambient temperature control air conditioner group of the personnel cluster is established, and the cooperatively controlled air conditioners in the air conditioner group establish a communication relationship to obtain a cooperatively controlled network; Based on the cooperative control network and the temperature control relationship, the temperature control relationship of the HVAC is obtained.

5. The method for automatic temperature control of HVAC based on the Internet of Things according to claim 4 is characterized in that: The obtaining of the distance between the personnel cluster coordinates and the HVAC to obtain the sub-regional distance, comparing the sub-regional distance with a preset sub-regional distance, and when the sub-regional distance is not higher than the preset sub-regional distance, the HVAC corresponding to the sub-regional distance is a cooperatively controlled air conditioner, including: Acquire the coordinates of the personnel cluster and the coordinates of the HVAC to obtain relative position coordinates; Based on the relative position coordinates, the sub-region spacing is obtained, and the determination equation of the sub-region spacing is: Among them, l i Indicates the interval between sub-areas; x i Indicates the horizontal coordinate of the coordinate point where the HVAC is located; y i Indicates the ordinate of the HVAC coordinate point; x e The horizontal coordinate of the coordinate point representing the edge of the personnel cluster area; e Indicates the ordinate of the coordinate point at the edge of the personnel cluster area; e indicates the coordinate point index at the edge of the personnel cluster area; f indicates the total number of coordinate point indexes at the edge of the personnel cluster area; h indicates the ground distance between the HVAC and air conditioning groups; The sub-regional spacing is compared with the preset sub-regional spacing. When the sub-regional spacing is not higher than the preset sub-regional spacing, the HVAC corresponding to the sub-regional spacing is identified as a cooperatively controlled air conditioner.

6. The method for automatic temperature control of HVAC based on the Internet of Things according to claim 4 is characterized in that: The acquiring the temperature control relationship based on the distance between the cooperatively controlled air conditioner and the coordinates of the personnel cluster includes: Based on the initial environment temperature of the personnel cluster and the environment temperature requirement of the personnel cluster, obtaining a heat change value of the personnel cluster; Based on the heat change value of the personnel cluster and the sub-regional spacing, the output heat of the HVAC is obtained. The output heat equation of the HVAC is: Among them, Q i represents the output heat of the i-th HVAC; T1 represents the ambient temperature requirement of the personnel cluster; T0 represents the initial ambient temperature of the personnel cluster; C represents the specific heat capacity of air; m represents the air quality of the personnel cluster; l i represents the regional spacing of the i-th HVAC; i represents the regional spacing retrieval of HVAC; j represents the total number of regional spacing retrievals of HVAC.

7. The HVAC temperature automatic control method based on the Internet of Things according to claim 1 is characterized in that: The step of obtaining a target output temperature of the HVAC system based on the temperature control relationship includes: Based on the temperature control relationship, the output temperature of each HVAC is obtained. The output temperature equation of the HVAC is: Among them, T i1 represents the output temperature of the i-th HVAC; Q i represents the output heat of the i-th HVAC; T1 represents the ambient temperature requirement of the personnel cluster; T0 represents the initial ambient temperature of the personnel cluster; C represents the specific heat capacity of air; m represents the air quality of the personnel cluster; l i represents the interval between the i-th HVAC regions; i represents the HVAC interval retrieval; j represents the total number of HVAC interval retrievals; k represents the heat transfer coefficient; The calculation equation of the heat transfer coefficient is: Wherein, k represents the heat transfer coefficient; h represents the convective heat transfer coefficient, which is determined by an empirical formula; P represents the circumference of the air outlet of the air conditioner; represents the mass flow rate of air, and C represents the specific heat capacity of air.

8. The method for automatic temperature control of HVAC based on the Internet of Things according to claim 1, characterized in that: The step of adjusting the output temperature of the HVAC based on the target output temperature of the HVAC comprises: Based on the HVAC coordinates, obtaining a relative configuration relationship of the HVAC; Based on the relative configuration relationship, the heat input from the non-cooperative air conditioner to the personnel cluster in the personnel cluster is obtained to obtain interference heat; Based on the interference heat, the output temperature of the HVAC is adjusted to obtain a target temperature, and the determination equation of the target temperature is: Among them, T t Indicates the target temperature; T i1 represents the output temperature of the i-th HVAC; Q a represents interference heat; C represents the specific heat capacity of air, and m represents the air quality of the personnel cluster; Based on a transmission / reception channel of adaptive control information between the HVAC, the output temperature of the HVAC is adaptively adjusted.

9. The method for automatic temperature control of HVAC based on the Internet of Things according to claim 8, characterized in that: The step of acquiring the heat input from the non-cooperative air conditioner to the personnel cluster based on the relative configuration relationship to obtain interference heat includes: Based on the spatial position of the HVAC and the coordinates of the personnel cluster, the distance between the HVAC and the personnel cluster is obtained to obtain the air conditioner-personnel distance. If the air conditioner-personnel distance is not higher than the preset air conditioner-personnel distance, the HVAC corresponding to the air conditioner-personnel distance is marked as an interfering air conditioner; Based on the distance between the interfering air conditioner and the personnel cluster, the interfering heat is obtained, and the determination equation of the interfering heat is: Among them, Q a represents the interference heat; p represents the label retrieval of the interference air conditioner; q represents the total number of label retrievals of the interference air conditioner; C represents the specific heat capacity of air; m represents the air quality of the personnel cluster; T1 represents the ambient temperature requirement of the personnel cluster; T a，p represents the output temperature of the pth interfering air conditioner; l a，p represents the distance between the pth interfering air conditioner and the personnel cluster; k represents the heat transfer coefficient.

10. The HVAC temperature automatic control method based on the Internet of Things according to claim 1, characterized in that: The step of adjusting the temperature value of the HVAC in real time based on the ambient temperature of the space where the air conditioning group is located includes: Obtaining the ambient temperature of the space where the air-conditioning group is located to obtain the current ambient temperature; Adjusting the temperature adjustment range of the HVAC based on the difference between the current ambient temperature and the ambient temperature requirement of the personnel cluster; Based on the temperature adjustment amplitude, the output temperature of the HVAC is adjusted to adjust the temperature value of the HVAC in real time.

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