WO2022267296A1 - Procédé et appareil de détermination de position et système de climatisation et support d'enregistrement lisible - Google Patents

Procédé et appareil de détermination de position et système de climatisation et support d'enregistrement lisible Download PDF

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Publication number
WO2022267296A1
WO2022267296A1 PCT/CN2021/129119 CN2021129119W WO2022267296A1 WO 2022267296 A1 WO2022267296 A1 WO 2022267296A1 CN 2021129119 W CN2021129119 W CN 2021129119W WO 2022267296 A1 WO2022267296 A1 WO 2022267296A1
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indoor units
correlation coefficient
indoor
return air
indoor unit
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PCT/CN2021/129119
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English (en)
Chinese (zh)
Inventor
李斌
杨睿贤
郑春元
丁云霄
翟晓强
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广东美的暖通设备有限公司
上海交通大学
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Priority to EP21946778.4A priority Critical patent/EP4300002A1/fr
Publication of WO2022267296A1 publication Critical patent/WO2022267296A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/88—Electrical aspects, e.g. circuits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2120/00—Control inputs relating to users or occupants
    • F24F2120/10—Occupancy
    • F24F2120/12—Position of occupants

Definitions

  • the present application relates to the technical field of control, in particular, to a method and device for determining a position, an air conditioning system and a readable storage medium.
  • This application aims to solve at least one of the technical problems existing in the prior art or related art.
  • the first aspect of the present application is to provide a location determination method.
  • the second aspect of the present application is to provide a position determination device.
  • the third aspect of the present application is to provide an air conditioning system.
  • a fourth aspect of the present application is to provide a readable storage medium.
  • the present application provides a location determination method, including: obtaining the return air temperature information of each indoor unit; The first correlation coefficient; classify multiple indoor units according to the first correlation coefficient to obtain a set number of classification groups; in each classification group, use any indoor unit as an anchor point and according to the first correlation coefficient, generate Relative location information.
  • the technical solution of this application proposes a method for determining the position.
  • the detection of the relative position between multiple indoor units can be realized. Therefore, it reduces the difficulty of maintaining the relative positional relationship between multiple indoor units, which is conducive to reducing the time cost and labor cost required for maintenance.
  • the determined relative position information is obtained based on the detection result, therefore, the obtained relative position information is more reliable.
  • the technical solution of the present application is realized based on the following principles. Specifically, different indoor units are installed in different positions, and there is a distance between different indoor units, and the distance will be different due to different installation positions. Due to the existence of this distance, the influence between different indoor units will be inconsistent. For example, one indoor unit is in the first sealed environment, and the other indoor unit is in the second sealed environment. The difference between the first sealed environment and the second sealed environment There is no heat transfer between indoor units, in this case, there is no influence between indoor units in different sealed environments. However, when there are multiple indoor units in a sealed environment, different indoor units may be affected.
  • the technical solution of the present application collects these influences, and utilizes the correlation between the influence and the distance between different indoor units to realize the estimation of relative position information between different indoor units.
  • the indoor unit is a device used to adjust the temperature in a sealed environment
  • the affected indoor units share a sealed environment, therefore, the above-mentioned influence can be extracted by collecting the return air temperature information of the indoor unit, specifically, Traverse to obtain the return air temperature information of multiple indoor units. If two indoor units are relatively close, the influence between the two indoor units will be serious, and the correlation coefficient between two indoor units determined according to the obtained return air temperature information will be greater, Therefore, the distance between different indoor units can be characterized according to the correlation coefficient.
  • any indoor unit in the divided classification group can be used as an anchor point to obtain the For the relative position relationship among other indoor units in the classification group, after traversing all the classification groups, the relative distribution of all indoor units can be obtained, that is, the relative position information in this application.
  • the return air temperature information of the indoor unit may be a discrete temperature value, that is, the return air temperature information detected by the indoor unit at each fixed detection time interval is represented as a temperature sequence.
  • the return air temperature information is the temperature information at the position of the return air outlet of the indoor unit.
  • a temperature sensor may be provided at the return air outlet of the indoor unit, and the temperature sensor may be used to obtain temperature information at the position of the return air outlet.
  • the position determination method claimed in this application also has the following additional distinguishing technical features, specifically, including:
  • the first correlation coefficient between every two indoor units is determined, which specifically includes: determining the covariance of the corresponding return air temperature information between every two indoor units; determining each The variance value of the return air temperature information corresponding to the indoor unit; determine the first correlation coefficient according to the variance and covariance.
  • the determination scheme of the first correlation coefficient is specifically defined, specifically, the calculation formula of the first correlation coefficient is as follows:
  • X is one indoor unit of every two indoor units
  • Y is the other indoor unit of every two indoor units
  • cov(X,Y) is the covariance of return air temperature information of X and Y
  • Var[X] is the variance of the X return air temperature information
  • Var[Y] is the variance of the Y return air temperature information.
  • classify multiple indoor units according to the first correlation coefficient to obtain a set number of classification groups including: classifying the two indoor units with the largest first correlation coefficient into one category; Indoor units of one type are used as the first indoor unit, and the second correlation coefficients between the first indoor unit and the remaining outdoor units except the first indoor unit among the plurality of indoor units are respectively determined, and the second correlation coefficient with the largest second correlation coefficient Two indoor units are classified into one category until multiple indoor units are classified into one category; according to the set number of classification groups, a correlation coefficient threshold is set for the second correlation coefficient; according to the second correlation coefficient and the correlation coefficient threshold A plurality of indoor units are divided to obtain a set number of classification groups.
  • the distance between different indoor units can be characterized according to the first correlation coefficient. Therefore, after determining the first correlation coefficient between two indoor units among the multiple indoor units, the obtained second Arrange the size of the first correlation coefficient, and then determine the two indoor units with the largest correlation coefficient. From the above, the first correlation coefficient can be used to represent the distance between different indoor units. Therefore, the corresponding indoor unit with the largest first correlation coefficient Between two indoor units are the two closest indoor units.
  • the two closest indoor units After determining the two closest indoor units, it is judged whether other indoor units have been classified. If the number of the last classification group is only one, if the judgment result is yes, the multiple indoor units are arranged according to the first correlation coefficient.
  • the set number is obtained. Since the set number is used to represent how many classification groups a plurality of indoor opportunities are divided into, the correlation coefficient threshold can be set according to the set number, so that according to the set correlation The coefficient threshold divides the indoor units in the classification group, and finally obtains a set number of classification groups.
  • it also includes: obtaining space partition information for installing multiple indoor units; and determining the set number of classification groups according to the space partition information.
  • the set quantity is determined according to the obtained space partition information, the set quantity can be reasonably set according to the space where the indoor unit is installed.
  • the reasonable influence on the selection of the preset threshold ensures the accuracy of the relative position information of multiple indoor units, and ultimately reduces the difficulty of maintaining relative position information for maintenance personnel, such as reducing manpower operating costs and time costs.
  • the space partition information may be determined according to the information collected by the installer when installing multiple indoor units.
  • the spatial distribution information may be room division information or office area division.
  • using any indoor unit as a positioning point and generating relative position information according to the first correlation coefficient specifically includes: determining the quantization value corresponding to the first correlation coefficient according to the preset quantization relationship; , the positioning point, and obtain the coordinate information of the indoor units except any indoor unit; generate relative position information according to the positioning point and the coordinate information.
  • the generation method of relative position information is specifically limited. Specifically, based on the above, the size of the correlation coefficient has a correlation with the distance between different indoor units. Therefore, the correlation coefficient and the distance between different indoor units can be constructed in advance. The mapping relationship between the distance values between different indoor units, so that after obtaining the correlation coefficient, the distance value between different indoor units can be determined according to the mapping relationship.
  • the preset quantitative relationship is the mapping relationship between the correlation coefficient and the distance values between different indoor units. Therefore, after determining the quantitative value, the positioning of any indoor unit in the classification group can be The coordinate information corresponding to the indoor unit corresponding to the quantitative value is determined by using the point and the quantized value, so as to know the relative positional relationship between any indoor unit and other indoor units according to the positioning point and coordinate information.
  • the positioning point can be understood as the coordinate origin.
  • the correlation coefficient and the quantization value are negatively correlated.
  • the relative position information is a topological map.
  • the expression form of the relative position information is specifically defined, and the relative position information is displayed in the form of a topology map by limiting the relative position information, so that the user can know and intuitively perceive the position distribution among different indoor units. Therefore, it can be compared Directly control different indoor units to ensure the control effect.
  • each indoor unit before obtaining the return air temperature information of each indoor unit, it also includes: controlling a plurality of indoor units to operate in cooling mode, heating mode or dehumidification mode; or controlling one of the plurality of indoor units to The cooling mode, heating mode or dehumidification mode operates, and other indoor units among the plurality of indoor units operate in the air supply mode.
  • the relative position information between different indoor units can be quickly determined by limiting the operating states of a plurality of indoor units.
  • multiple indoor units can be controlled to operate in cooling mode, heating mode, or wet mode at the same time, so that multiple indoor units can simultaneously adjust the temperature of the environment in which the indoor units are located, so as to achieve In the case of rapid cooling, heating or dehumidification, the relative position information between different indoor units can be determined.
  • the target operation mode may be any one of heating mode, cooling mode and dehumidification mode.
  • it further includes: obtaining the absolute position information of any indoor unit, and determining the actual position information according to the absolute position information and the relative position information.
  • the process of converting the relative position information into actual position information is specifically defined. Specifically, by obtaining the absolute position information of any indoor unit, in order to The absolute position information can determine the actual position information. In the process, by converting it, the user can more intuitively determine the positions of different indoor units and the distribution among different indoor units, so that they can be used to Control different indoor units.
  • it also includes: obtaining the return air temperature difference sequence of each indoor unit; determining the evaluation index according to the average value and variance of the return air temperature difference sequence between every two indoor units; The indicator determines the preset number of indoor units around each indoor unit.
  • the relative position information can be corrected, so as to improve the reliability of the obtained relative position information, and further improve the control of different indoor units according to the relative position information. accuracy.
  • the evaluation index is the absolute value of the product of the mean value and the variance of the return air temperature difference sequence.
  • the present application provides a device for determining a position, which is used for multiple indoor units, including: an acquisition module, used to acquire return air temperature information of each indoor unit; a determination module, used to The return air temperature information is used to determine the first correlation coefficient between every two indoor units; the classification module is used to classify multiple indoor units according to the first correlation coefficient and the preset threshold to obtain a set number of classification groups; generate A module, configured to generate relative position information in each classification group, using the first indoor unit as an anchor point and according to the first correlation coefficient.
  • the technical solution of the present application proposes a position determination device.
  • Multiple indoor units using the position determination device can realize the detection of the relative positions between multiple indoor units. Therefore, it reduces the maintenance difficulty of the relative positional relationship between a plurality of indoor units, which is beneficial to reduce the time cost and labor cost required for maintenance.
  • the relative position information determined by the position determining method is obtained based on the detection result, therefore, the obtained relative position information is more reliable.
  • the technical solution of the present application is realized based on the following principles. Specifically, different indoor units are installed in different positions, and there is a distance between different indoor units, and the distance will be different due to different installation positions. Due to the existence of this distance, the influence between different indoor units will be inconsistent. For example, one indoor unit is in the first sealed environment, and the other indoor unit is in the second sealed environment. The difference between the first sealed environment and the second sealed environment There is no heat transfer between indoor units, in this case, there is no influence between indoor units in different sealed environments. However, when there are multiple indoor units in a sealed environment, different indoor units may be affected.
  • the technical solution of the present application collects these influences, and utilizes the correlation between the influence and the distance between different indoor units to realize the estimation of relative position information between different indoor units.
  • the indoor unit is a device used to adjust the temperature in a sealed environment
  • the affected indoor units share a sealed environment, therefore, the above-mentioned influence can be extracted by collecting the return air temperature information of the indoor unit, specifically, Traverse to obtain the return air temperature information of multiple indoor units. If two indoor units are relatively close, the influence between the two indoor units will be serious, and the correlation coefficient between two indoor units determined according to the obtained return air temperature information will be greater, Therefore, the distance between different indoor units can be characterized according to the correlation coefficient.
  • any indoor unit in the divided classification group can be used as an anchor point to obtain the For the relative position relationship among other indoor units in the classification group, after traversing all the classification groups, the relative distribution of all indoor units can be obtained, that is, the relative position information in this application.
  • the return air temperature information of the indoor unit may be a discrete temperature value, that is, the return air temperature information detected by the indoor unit at a fixed detection time interval is represented as a temperature sequence.
  • the return air temperature information is the temperature information at the position of the return air outlet of the indoor unit.
  • a temperature sensor may be provided at the return air outlet of the indoor unit, and the temperature sensor may be used to obtain temperature information at the position of the return air outlet.
  • the determination module is specifically used to determine the covariance of the corresponding return air temperature information between every two indoor units; determine the variance value of the return air temperature information corresponding to each indoor unit; according to the variance and covariance The variance determines the first correlation coefficient.
  • the classification module is specifically used to classify the two indoor units with the largest first correlation coefficients into one category; use the indoor units classified into one category as the first indoor unit, and respectively determine the first indoor unit The second correlation coefficient between the remaining outdoor units except the first indoor unit among the multiple indoor units, divide the two indoor units with the largest second correlation coefficient into one category until multiple indoor units are classified into one category ; According to the set number of classification groups, set a correlation coefficient threshold for the second correlation coefficient; divide a plurality of indoor units according to the second correlation coefficient and the correlation coefficient threshold to obtain a set number of classification groups.
  • the classification module is also used to obtain space partition information where multiple indoor units are installed; and determine the set number of classification groups according to the space partition information.
  • the generation module is used to determine the quantization value corresponding to the first correlation coefficient according to the preset quantization relationship; according to the quantization value and the positioning point, obtain the coordinate information of the indoor unit except any indoor unit; according to the positioning Point and coordinate information generate relative position information.
  • the correlation coefficient is negatively correlated with the quantization value.
  • the relative position information is a topological map.
  • the acquisition module is also used to control multiple indoor units to operate in cooling mode, heating mode or dehumidification mode; or control one of the multiple indoor units to operate in cooling mode, heating mode or dehumidification mode, Other indoor units among the plurality of indoor units operate in the blowing mode.
  • the generation module is also used to obtain the absolute position information of any indoor unit, and determine the actual position information according to the absolute position information and the relative position information.
  • the generation module is also used to obtain the return air temperature difference sequence of each indoor unit; determine the evaluation index according to the average value and variance of the return air temperature difference sequence between every two indoor units; The evaluation index determines the preset number of indoor units around each indoor unit.
  • the evaluation index is the absolute value of the product of the mean value and the variance of the return air temperature difference sequence.
  • the technical solution of the present application proposes an air conditioning system, including: multiple indoor units; a control device, the control device communicates with the multiple indoor units, and is used to perform any The steps in the item's location determination method.
  • the technical solution of the present application proposes an air-conditioning system, which includes a control device and multiple indoor units, wherein the control device executes the steps of the position determination method in any one of the first aspects, therefore, the air-conditioning system has any of the above-mentioned All the beneficial technical effects of the method for determining a position will not be repeated here.
  • it also includes: an outdoor unit, wherein the outdoor unit is connected to the indoor unit.
  • a readable storage medium on which a program or instruction is stored, and when the program or instruction is executed by a processor, the steps of any one of the method for determining a location in the first aspect are implemented.
  • Fig. 1 shows the distribution of multiple indoor units in the indoor installation environment in the related technical solution
  • FIG. 2 shows a schematic flowchart of a method for determining a position according to an embodiment of the present application
  • FIG. 3 shows a schematic flowchart of a solution for determining a first correlation coefficient according to an embodiment of the present application
  • FIG. 4 shows a schematic flow chart of a determination process of a set number of classification groups according to an embodiment of the present application
  • Fig. 5 shows a schematic diagram of an actual usage scenario in an embodiment of the present application
  • FIG. 6 shows a schematic diagram of a correlation coefficient threshold in an embodiment of the present application
  • Fig. 7 shows a schematic flow chart of generating relative position information according to an embodiment of the present application
  • Fig. 8 shows a schematic diagram of relative distance quantization values between different indoor units according to an embodiment of the present application
  • Fig. 9 shows a schematic diagram of relative position information among multiple indoor units according to an embodiment of the present application.
  • Fig. 10 shows a schematic diagram of the form of relative position information according to an embodiment of the present application.
  • FIG. 11 shows one of the forms of a topology diagram according to an embodiment of the present application.
  • Fig. 12 shows a schematic diagram of a representation form of a preset quantitative relationship according to an embodiment of the present application
  • Fig. 13 shows a schematic block diagram of location determination according to an embodiment of the present application.
  • the present application provides a method for determining a location, including:
  • Step 102 collecting temperature information at the return air outlet of each indoor unit to obtain return air temperature information
  • Step 104 according to the collected return air temperature information, calculate the first correlation coefficient of two indoor units
  • Step 106 using the first correlation coefficient as a reference to classify multiple indoor units to obtain a set number of classification groups
  • Step 108 in each classification group, select an indoor unit as a positioning point, and use the calculated first correlation coefficient as a reference to generate relative position information.
  • the embodiment of the present application proposes a method for determining the position.
  • the detection of the relative position between multiple indoor units can be realized. Therefore, it reduces the difficulty of maintaining the relative positional relationship between multiple indoor units, which is conducive to reducing the time cost and labor cost required for maintenance.
  • the determined relative position information is obtained based on the detection result, therefore, the obtained relative position information is more reliable.
  • the embodiments of the present application are realized based on the following principles. Specifically, different indoor units are installed in different positions, and there is a distance between different indoor units, and the distance will be different due to different installation positions. Due to the existence of this distance, the influence between different indoor units will be inconsistent. For example, one indoor unit is in the first sealed environment, and the other indoor unit is in the second sealed environment. The difference between the first sealed environment and the second sealed environment There is no heat transfer between indoor units, in this case, there is no influence between indoor units in different sealed environments. However, when there are multiple indoor units in a sealed environment, different indoor units may be affected.
  • the embodiment of the present application collects these influences, and uses the correlation between the influence and the distance between different indoor units to realize the estimation of the relative position information between different indoor units.
  • the indoor unit is a device used to adjust the temperature in a sealed environment
  • the affected indoor units share a sealed environment, therefore, the above-mentioned influence can be extracted by collecting the return air temperature information of the indoor unit, specifically, Traverse to obtain the return air temperature information of multiple indoor units. If two indoor units are relatively close, the influence between the two indoor units will be serious, and the correlation coefficient between two indoor units determined according to the obtained return air temperature information will be greater, Therefore, the distance between different indoor units can be characterized according to the correlation coefficient.
  • any indoor unit in the divided classification group can be used as an anchor point to obtain the For the relative position relationship among other indoor units in the classification group, after traversing all the classification groups, the relative distribution of all indoor units can be obtained, that is, the relative position information in this application.
  • the return air temperature information of the indoor unit may be a discrete temperature value, that is, the return air temperature information detected by the indoor unit at intervals of a fixed detection time is represented as a temperature sequence.
  • the return air temperature information is the temperature information at the position of the return air outlet of the indoor unit.
  • a temperature sensor may be provided at the return air outlet of the indoor unit, and the temperature sensor may be used to obtain temperature information at the position of the return air outlet.
  • the determination scheme of the first correlation coefficient is specifically defined, specifically, as shown in FIG. 3 , including:
  • Step 202 select two indoor units from a plurality of indoor units, and calculate the covariance of the return air temperature information corresponding to the selected indoor units;
  • Step 204 determining the variance value of the return air temperature information corresponding to the selected indoor unit
  • Step 206 by calculating the variance and covariance, the first correlation coefficient between the selected indoor units is obtained.
  • the determination scheme of the first correlation coefficient is specifically defined, specifically, the calculation formula of the first correlation coefficient is as follows:
  • X is one indoor unit of every two indoor units
  • Y is the other indoor unit of every two indoor units
  • cov(X,Y) is the covariance of return air temperature information of X and Y
  • Var[X] is the variance of the X return air temperature information
  • Var[Y] is the variance of the Y return air temperature information.
  • the determination process of a set number of classification groups is specifically defined, specifically, as shown in Figure 4, including:
  • Step 302 sorting the first correlation coefficients, selecting two indoor units corresponding to the largest first correlation coefficients, and classifying them into one category;
  • Step 304 Based on the fact that multiple indoor units are not classified into one category, the indoor unit classified into one category is used as the first indoor unit, and the first indoor unit and the number of indoor units other than the first indoor unit among the multiple indoor units are respectively determined.
  • the second correlation coefficient among the remaining outdoor units sort the second correlation coefficients, select the two indoor units corresponding to the largest second correlation coefficients, and divide them into one category until all indoor units are classified into one category. kind;
  • Step 306 obtaining the set number of classification groups, and selecting a correlation coefficient threshold for the second correlation coefficient according to the set number;
  • Step 308 classify and divide the plurality of indoor units according to the second correlation coefficient and the correlation coefficient threshold to obtain a set number of classification groups.
  • the distance between different indoor units can be characterized according to the first correlation coefficient. Therefore, after determining the first correlation coefficient between two indoor units among the multiple indoor units, the obtained second Arrange the size of the first correlation coefficient, and then determine the two indoor units with the largest correlation coefficient. From the above, the first correlation coefficient can be used to represent the distance between different indoor units. Therefore, the corresponding indoor unit with the largest first correlation coefficient Between two indoor units are the two closest indoor units.
  • the two closest indoor units After determining the two closest indoor units, it is judged whether other indoor units have been classified. If the number of the last classification group is only one, if the judgment result is yes, the multiple indoor units are arranged according to the first correlation coefficient.
  • the set number is obtained. Since the set number is used to represent how many classification groups a plurality of indoor opportunities are divided into, the correlation coefficient threshold can be set according to the set number, so that according to the set correlation The coefficient threshold divides the indoor units in the classification group, and finally obtains a set number of classification groups.
  • the number of indoor units is more than two, it can be three or more, that is, after dividing the two indoor units corresponding to the largest first correlation coefficient after the arrangement into one category, there are still some indoor units Unclassified, in this case, take the indoor units that have been classified into one category as a whole, that is, the first indoor unit in this application, and determine the difference between the first indoor unit and the unclassified indoor units The second correlation coefficient, so as to use the second correlation coefficient to aggregate multiple indoor units, and finally realize the aggregation of multiple indoor units into one category.
  • FIG. 5 there are 9 internal units, which can be divided into 4 areas from the perspective of building plan division: office area, meeting area 1, meeting area 2, and corridor area.
  • the indoor units include indoor unit 1, indoor unit 2, indoor unit 3, indoor unit 4, indoor unit 5, indoor unit 6, indoor unit 7, indoor unit 8 and indoor unit 9, where indoor unit 1 is represented by 1# , indoor unit two is indicated by 2#, indoor unit three is indicated by 3#, indoor unit four is indicated by 4#, indoor unit five is indicated by 5#, indoor unit six is indicated by 6#, indoor unit seven is indicated by 7#, indoor Unit 8 is represented by 8#, indoor unit 9 is represented by 9#, and the calculation results of the first correlation coefficient between multiple indoor units are shown in Table 1.
  • Type 2 Type 1 7# 8# 9# the correlation coefficient correlation coefficient correlation coefficient correlation coefficient correlation coefficient Type 2 correlation coefficient 0 0.9015875 0.6869 0.3952 0.8244 Type 1 correlation coefficient 0.901588 0 0.816175 0.4023 0.863025 7# correlation coefficient 0.6869 0.7796375 0 0.4667 0.7488 8# correlation coefficient 0.3952 0.377 0.4667 0 0.4821 9# correlation coefficient 0.8244 0.8385125 0.7488 0.4821 0 the maximum value 0.901588 0.9015875 0.816175 0.4821 0.863025
  • the the Type 1 7# 8# 9# the correlation coefficient correlation coefficient correlation coefficient correlation coefficient Type 1 correlation coefficient 0 0.73326875 0.3861 0.83145625 7# correlation coefficient 0.733269 0 0.4667 0.7488 8# correlation coefficient 0.3861 0.4667 0 0.4821 9# correlation coefficient 0.831456 0.7488 0.4821 0 the maximum value 0.831456 0.7488 0.4821 0.83145625
  • the second correlation coefficient may be an average value of the first correlation coefficient between the indoor units classified into one category and the first indoor unit.
  • the correlation coefficient threshold is also the correlation coefficient setting value. Based on the above table, it can be known that the correlation coefficient threshold is selected between 0.8314 and 0.9016.
  • the correlation coefficient threshold is set for the second correlation coefficient according to the set number of classification groups. It can be understood that the correlation coefficient threshold is reasonably selected according to the set number, so as to divide multiple indoor units into the set A certain number of classification groups.
  • it also includes: acquiring information on space divisions where multiple indoor units are installed; and determining the set number according to the information on space divisions.
  • the set quantity since the set quantity is determined according to the obtained space partition information, the set quantity can be reasonably set according to the space where the indoor unit is installed.
  • the reasonable influence on the selection of the preset threshold ensures the accuracy of the relative position information of multiple indoor units, and ultimately reduces the difficulty of maintaining relative position information for maintenance personnel, such as reducing manpower operating costs and time costs.
  • the space partition information may be determined according to the information collected by the installer when installing multiple indoor units.
  • the spatial distribution information may be room division information or office area division conditions.
  • the specific process of generating relative position information is specifically defined, as shown in FIG. 7 , specifically including:
  • Step 502 acquiring a preset quantization relationship, so as to determine a quantization value corresponding to the first correlation coefficient according to the preset quantization relationship;
  • Step 504 in the classification group, according to the quantitative value and the positioning point, obtain the coordinate information of the indoor units except any selected indoor unit;
  • Step 506 generating relative position information according to the positioning point and coordinate information.
  • the method of generating relative position information is specifically limited. Specifically, based on the above, the size of the correlation coefficient has a correlation with the distance between different indoor units. Therefore, the correlation coefficient and the distance between different indoor units can be constructed in advance. The mapping relationship between the distance values between different indoor units, so that after obtaining the correlation coefficient, the distance value between different indoor units can be determined according to the mapping relationship.
  • the preset quantitative relationship is the mapping relationship between the correlation coefficient and the distance values between different indoor units. Therefore, after determining the quantitative value, the positioning of any indoor unit in the classification group can be The coordinate information corresponding to the indoor unit corresponding to the quantitative value is determined by using the point and the quantized value, so as to know the relative positional relationship between any indoor unit and other indoor units according to the positioning point and coordinate information.
  • the positioning point can be understood as the coordinate origin.
  • the correlation coefficient is negatively correlated with the quantization value.
  • the corresponding relationship between the correlation coefficient and the quantization value is shown in Table 7.
  • FIG. 8 a schematic diagram of relative distance quantization values between different indoor units.
  • the relative position information may be expressed in the form of Table 8.
  • x and y represent coordinates on coordinate axes perpendicular to each other.
  • FIG. 10 shows one of the schematic diagrams of the form of relative position information.
  • the relative position information is a topological map.
  • the expression form of the relative position information is specifically defined, and the relative position information is displayed in the form of a topological map by limiting the relative position information, so that the user can know and intuitively perceive the position distribution among different indoor units. Therefore, it can be compared Directly control different indoor units to ensure the control effect.
  • FIG. 11 shows one of the forms of the topology diagram.
  • FIG. 12 shows a schematic diagram of a representation form of a preset quantization relationship.
  • it also includes: obtaining the return air temperature difference sequence of each indoor unit; determining the evaluation index according to the average value and variance of the return air temperature difference sequence between every two indoor units; according to the evaluation index Determine the preset number of indoor units around each indoor unit.
  • the mean of the sequence is smaller.
  • the curve of the return air temperature may be similar to any indoor unit in the same operating state.
  • the average value of the return air temperature difference is very small and no judgmental meaning.
  • the fluctuation of the return air temperature difference sequence will be large, because their actual correlation is low, and the consistency of the temperature change trend is low, so the calculation of the variance of the return air temperature difference sequence is increased.
  • the lower return air temperature sequence will have a larger variance.
  • the average value and the variance of the return air temperature difference among the internal units are calculated, and the data shown in Table 9 are obtained as the evaluation index.
  • search for the x units with the most similar evaluation indicators of each internal unit and obtain the adjacent internal unit group with the number of each internal unit being x.
  • Table 10 can be obtained.
  • Indoor unit number Nearby indoor unit number 1# [2#,3#,4#] 2# [3#,4#,5#] 3# [4#,2#,5#] 4# [5#,3#,6#] 5# [4#,3#,6#] 6# [9#,4#,5#] 7# [6#,9#,4#] 8# [3#,4#,2#] 9# [6#,4#,5#]
  • the distribution of multiple indoor units can be obtained, and based on the above distribution, the position distribution of different indoor units can be obtained.
  • the relative position information can be corrected so as to improve the reliability of the obtained relative position information, and further improve the relative position information for different indoor units. accuracy of the controls.
  • the evaluation index is the absolute value of the product of the mean value and the variance of the return air temperature difference sequence.
  • each indoor unit before obtaining the return air temperature information of each indoor unit, it also includes: controlling multiple indoor units to operate in cooling mode, heating mode or dehumidification mode; or controlling one of the multiple indoor units to cool mode, heating mode, or dehumidification mode, and other indoor units among multiple indoor units operate in fan mode.
  • the relative position information among different indoor units can be quickly determined by limiting the operating states of multiple indoor units.
  • multiple indoor units can be controlled to operate in cooling mode, heating mode, or wet mode at the same time, so that multiple indoor units can simultaneously adjust the temperature of the environment in which the indoor units are located, so as to achieve In the case of rapid cooling, heating or dehumidification, the relative position information between different indoor units can be determined.
  • the target operation mode may be any one of heating mode, cooling mode and dehumidification mode.
  • the method further includes: obtaining the absolute position information of any indoor unit, and determining the actual position information according to the absolute position information and the relative position information.
  • the process of converting the relative position information into actual position information is specifically defined, specifically, by acquiring the absolute position information of any indoor unit, so as to The absolute position information can determine the actual position information.
  • the user can more intuitively determine the positions of different indoor units and the distribution among different indoor units, so that they can be used to Control different indoor units.
  • the present application provides a position determination device 600 for multiple indoor units, including: an acquisition module 602, configured to acquire the return air temperature of each indoor unit information; a determination module 604, used to determine the first correlation coefficient between every two indoor units according to the return air temperature information; a classification module 606, used to classify multiple indoor units according to the first correlation coefficient and a preset threshold , to obtain a set number of classification groups; the generating module 608 is configured to use the first indoor unit as an anchor point in each classification group and generate relative position information according to the first correlation coefficient.
  • the embodiment of the present application proposes a position determination device 600, which can be used to detect the relative positions of multiple indoor units by using the position determination device 600.
  • a position determination device 600 which can be used to detect the relative positions of multiple indoor units by using the position determination device 600.
  • maintenance personnel do not need to manually
  • the relative positional relationship between multiple indoor units is maintained, therefore, the difficulty of maintaining the relative positional relationship between multiple indoor units is reduced, which is conducive to reducing the time cost and labor cost required for maintenance.
  • the application The relative position information determined by the above position determination method is obtained based on the detection results, therefore, the obtained relative position information is more reliable.
  • the embodiments of the present application are implemented based on the following principles. Specifically, different indoor units are installed in different positions, and there is a distance between different indoor units, and the distance will be different due to different installation positions. Due to the existence of this distance, the influence between different indoor units will be inconsistent. For example, one indoor unit is in the first sealed environment, and the other indoor unit is in the second sealed environment. The difference between the first sealed environment and the second sealed environment There is no heat transfer between indoor units, in this case, there is no influence between indoor units in different sealed environments. However, when there are multiple indoor units in a sealed environment, different indoor units may be affected.
  • the embodiment of the present application collects these influences, and uses the correlation between the influence and the distance between different indoor units to realize the estimation of the relative position information between different indoor units.
  • the indoor unit is a device used to adjust the temperature in a sealed environment
  • the affected indoor units share a sealed environment, therefore, the above-mentioned influence can be extracted by collecting the return air temperature information of the indoor unit, specifically, Traverse to obtain the return air temperature information of multiple indoor units. If two indoor units are relatively close, the influence between the two indoor units will be serious, and the correlation coefficient between two indoor units determined according to the obtained return air temperature information will be greater, Therefore, the distance between different indoor units can be characterized according to the correlation coefficient.
  • any indoor unit in the divided classification group can be used as an anchor point to obtain the For the relative position relationship among other indoor units in the classification group, after traversing all the classification groups, the relative distribution of all indoor units can be obtained, that is, the relative position information in this application.
  • the return air temperature information of the indoor unit may be a discrete temperature value, that is, the return air temperature information detected by the indoor unit at a fixed detection time interval is represented as a temperature sequence.
  • the return air temperature information is the temperature information at the position of the return air outlet of the indoor unit.
  • a temperature sensor may be provided at the return air outlet of the indoor unit, and the temperature sensor may be used to obtain temperature information at the position of the return air outlet.
  • the embodiment of the present application proposes an air conditioning system, including: a plurality of indoor units; a control device, the control device communicates with the plurality of indoor units, and is used to perform position determination as any one of the above method steps.
  • the embodiment of the present application proposes an air-conditioning system, which includes a control device and a plurality of indoor units, wherein the control device executes the steps of any one of the position determination methods described above. Therefore, the air-conditioning system It has all the beneficial technical effects of any one of the location determination methods described above.
  • the detection of the relative position between multiple indoor units can be realized. During this process, there is no need for maintenance personnel to manually maintain the relative position relationship between multiple indoor units. The maintenance difficulty of the relative positional relationship between them is beneficial to reduce the time cost and labor cost required for maintenance.
  • the relative position information determined by the above position determination method of the present application is obtained based on the detection results. Therefore, the The obtained relative position information is more reliable, and other technical effects will not be repeated here.
  • the air conditioning system further includes: an outdoor unit, wherein the outdoor unit is connected to the indoor unit.
  • the refrigerant is exchanged between the outdoor unit and the indoor unit to realize heat exchange.
  • a readable storage medium on which a program or instruction is stored, and when the program or instruction is executed by a processor, the steps of any one of the methods for determining a position above are implemented.
  • the readable storage medium has all the steps of any one of the above-mentioned position determination methods. Beneficial technical effects are not repeated here.
  • connection refers to two or more than two.
  • connection can be fixed connection, detachable connection, or integral connection; it can be directly connected or through an intermediate The medium is indirectly connected.

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Abstract

La présente invention concerne un procédé et un appareil de détermination de position et un système de climatisation et un support d'enregistrement lisible. Le procédé de détermination de position consiste à : acquérir des informations de température d'air de retour de chaque unité intérieure ; déterminer, en fonction des informations de température d'air de retour, un premier coefficient de corrélation entre toutes les deux unités intérieures ; classifier une pluralité d'unités intérieures selon le premier coefficient de corrélation, de manière à obtenir un nombre défini de groupes de classification ; et, dans chaque groupe de classification, générer des informations de position relative, une quelconque unité intérieure étant prise comme point de positionnement et selon le premier coefficient de corrélation. Par conséquent, il n'y a pas besoin de personnel de maintenance pour maintenir manuellement la relation de position relative parmi la pluralité d'unités intérieures, ce qui permet de réduire la difficulté de maintenance de la relation de position relative entre la pluralité d'unités intérieures et de faciliter la réduction des coûts de temps et de main-d'œuvre requis pour la maintenance.
PCT/CN2021/129119 2021-06-22 2021-11-05 Procédé et appareil de détermination de position et système de climatisation et support d'enregistrement lisible WO2022267296A1 (fr)

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CN114500282B (zh) * 2022-01-06 2023-05-30 广东美的暖通设备有限公司 室内机位置识别方法、装置、电子设备及介质
WO2023203595A1 (fr) * 2022-04-18 2023-10-26 三菱電機株式会社 Dispositif de climatisation et procédé d'identification de position d'installation
CN114719426A (zh) * 2022-04-22 2022-07-08 广州豪特节能环保科技股份有限公司 一种基于空调分布策略的智能能源管理系统及管理方法

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