Intelligent refrigeration control system and method

Abstract

The embodiment of the present invention provides an intelligent refrigeration control system and method, including: obtaining the sunshine time ratio and rainfall time ratio of the corresponding area of ​​the commercial building; obtaining the volume coefficient of the commercial building; simulating the personnel distribution map by using the volume coefficient of the commercial building; calculating the dissipation function of the building layout space through the sunshine time ratio, rainfall time ratio and the personnel distribution map; calculating the thermal control parameters of each building layout space according to the dissipation function; controlling the operation of the refrigeration system according to the thermal control parameters; calculating the personnel distribution of the commercial building of the central air-conditioning system, and combining the sunshine time and rainfall time of the area; obtaining the aerodynamic thermal control parameters of the building layout space according to the above three, predicting the operation of the refrigeration system through the thermal control parameters, improving the performance of operation prediction, saving resources, and reducing equipment operation costs.

Description

Technical Field

[0001] The present invention relates to the field of computer technology, and in particular to an intelligent refrigeration control method, an intelligent refrigeration control system, a computer device and a computer-readable storage medium. Background Art

[0002] The air conditioning system of commercial buildings such as data centers or apartments is generally a central air conditioning system, which adjusts the temperature, humidity, cleanliness and air flow rate of the indoor environment of commercial buildings through the central air conditioning system to create a comfortable space environment or a space environment that meets the requirements of specific process flows. It specifically includes air handling equipment, cold and heat sources, air conditioning water system and air conditioning air system. The function of the air conditioning air system is to send the air from the air handling equipment into the air-conditioned room through the air supply duct system, and at the same time draw back a certain amount of air from the room (called return air) and reuse it after being processed by the air handling equipment. This system ensures the circulation and renewal of indoor air, and also helps to maintain the indoor temperature and humidity; the architectural design process of the central air conditioning system of existing commercial buildings generally requires computational simulation, but the resources consumed by computational simulation are very large, which makes the simulation cost of the central air conditioning system high, and thus the operating cost of the equipment is also high. Summary of the invention

[0003] In view of the above problems, embodiments of the present invention are proposed to provide an intelligent refrigeration control method, an intelligent refrigeration control system, a computer device and a computer-readable storage medium that overcome the above problems or at least partially solve the above problems. In order to solve the above problems, embodiments of the present invention disclose an intelligent refrigeration control method, which is applied to the refrigeration system of a commercial building; the method includes: obtaining the sunshine time ratio and the rainfall time ratio of the corresponding area of ​​the commercial building; obtaining the volume coefficient of the commercial building; simulating the personnel distribution map using the volume coefficient of the commercial building; calculating the dissipation function of the building layout space through the sunshine time ratio, the rainfall time ratio and the personnel distribution map; calculating the thermal control parameters of each building layout space according to the dissipation function; and controlling the operation of the refrigeration system according to the thermal control parameters. Preferably, the simulation of the personnel distribution map using the volume coefficient of the commercial building includes: obtaining the occupancy rate and occupancy position of the commercial building; generating the personnel distribution map of each floor according to the occupancy rate, the occupancy position and the volume coefficient. Preferably, the dissipation function includes a first dissipation function and a second dissipation function; the dissipation function of the building layout space calculated by the sunshine time ratio, rainfall time ratio and personnel distribution map includes: calculating the first dissipation function and the second dissipation function of the sub-building space of the building layout space according to the personnel distribution map under the sunshine time ratio and rainfall time ratio; calculating the total dissipation function according to the first dissipation function and the second dissipation function. Preferably, the thermal control parameters of each building layout space calculated according to the dissipation function include: obtaining the building thickness, surface area, thermal conductivity, total thermal resistance, and internal and external gas convection heat transfer coefficient; calculating the internal and external temperature difference according to the building thickness, surface area, thermal conductivity, total thermal resistance, internal and external gas convection heat transfer coefficient and dissipation function; determining the internal and external temperature difference as the thermal control parameter of the building layout space. Preferably, generating a personnel distribution map for each floor according to the occupancy rate, occupancy position and volume coefficient includes: obtaining the building area of ​​the commercial building; calculating the number of personnel in the commercial building according to the building area and volume coefficient; determining the personnel distribution points of each floor according to the number of personnel, the occupancy rate and the occupancy position; and generating a personnel distribution map through each set of personnel distribution points. Preferably, calculating the first dissipation function and the second dissipation function of the sub-building space of the building layout space according to the personnel distribution map under the sunshine time ratio and the rainfall time ratio includes: calculating the temperature variation coefficient of the commercial building under different sunshine time ratios and rainfall time ratios; and obtaining the first dissipation function and the second dissipation function of the sub-building space of the building layout space according to the temperature variation coefficient of the commercial building and the personnel distribution map.The embodiment of the present invention discloses an intelligent refrigeration control system, which is applied to the refrigeration system of a commercial building; the system includes: a first acquisition module, which is used to acquire the sunshine time ratio and rainfall time ratio of the corresponding area of ​​the commercial building; a second acquisition module, which is used to acquire the volume coefficient of the commercial building; a simulation module, which is used to simulate the personnel distribution map using the volume coefficient of the commercial building; a dissipation function calculation module, which is used to calculate the dissipation function of the building layout space through the sunshine time ratio, rainfall time ratio and personnel distribution map; a thermal control parameter module, which is used to calculate the thermal control parameters of each building layout space according to the dissipation function; and an operation module, which is used to control the operation of the refrigeration system according to the thermal control parameters. Preferably, the simulation module includes: an acquisition submodule, which is used to acquire the occupancy rate and occupancy position of the commercial building; and a generation submodule, which is used to generate the personnel distribution map of each floor according to the occupancy rate, occupancy position and volume coefficient. The embodiment of the present invention discloses a computer device, including a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of the above-mentioned intelligent refrigeration control method when executing the computer program. The embodiment of the present invention discloses a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the above-mentioned intelligent refrigeration control method are implemented. The embodiment of the present invention includes the following advantages: In the embodiment of the present invention, the intelligent refrigeration control method includes: obtaining the sunshine time ratio and the rainfall time ratio of the corresponding area of ​​the commercial building; obtaining the volume coefficient of the commercial building; using the volume coefficient of the commercial building to simulate the personnel distribution map; calculating the dissipation function of the building layout space through the sunshine time ratio, the rainfall time ratio, and the personnel distribution map; calculating the thermal control parameters of each building layout space according to the dissipation function; controlling the operation of the refrigeration system according to the thermal control parameters; calculating the personnel distribution of the commercial building of the central air-conditioning system, and combining the sunshine time and rainfall time of the area; obtaining the aerodynamic thermal control parameters of the building layout space according to the above three, and predicting the operation of the refrigeration system through the thermal control parameters, so that the switching control temperature changes with the environment, improving the performance of operation prediction, saving resources, and reducing equipment operation costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0004] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Figure 1 is a schematic diagram of an embodiment of an intelligent refrigeration control method according to an embodiment of the present invention; Figure 2It is a brief schematic diagram of a personnel distribution diagram of an embodiment of the present invention; Figure 3 It is a structural block diagram of an intelligent refrigeration control system embodiment of the present invention; Figure 4 The diagram is a diagram of the internal structure of a computer device according to an embodiment. DETAILED DESCRIPTION

[0005] In order to make the technical problems, technical solutions and beneficial effects solved by the embodiments of the present invention more clearly understood, the embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0006] In a core concept of an embodiment of the present invention, in a central air-conditioning system of a commercial building such as an industrial data center or an apartment, the distribution of personnel in the commercial building of the central air-conditioning system is calculated, and then combined with the sunshine time and rainfall time in the area; the aerodynamic thermal control parameters of the building layout space are obtained based on the above three factors, and the operation of the refrigeration system is predicted by the thermal control parameters, so that the switching control temperature changes with the environmental changes, thereby improving the performance of the operation prediction, saving resources, and reducing the equipment operation cost.

[0007] Reference Figure 1 , shows a schematic diagram of an embodiment of an intelligent refrigeration control method according to an embodiment of the present invention, which is applied to a refrigeration system of a commercial building; specifically, the following steps may be included:

[0008] Step S101, obtain the sunshine time ratio and rainfall time ratio of the corresponding area of ​​the commercial building; in the embodiment of the present invention, the cooling and heating system includes a compressor, a condenser, a throttle valve and an evaporator. The compressor refers to a driven fluid machine that lifts the low-pressure refrigerant gas into a high-pressure refrigerant gas to provide power for the refrigeration cycle; the condenser is a kind of heat exchanger, which can convert the refrigerant gas into liquid and quickly transfer the heat in the pipeline to the air near the pipeline; the throttle valve is mainly used to adjust the flow rate, and the normal temperature and high-pressure refrigerant liquid flows through the throttle valve and is converted into a low-temperature and low-pressure refrigerant liquid; the expansion compressor is mainly used for throttling and reducing pressure, releasing heat, becoming a supercooled state, and entering the evaporator, while the other part of the refrigerant absorbs steam, and after the heat is released in the expansion compressor, it is fully mixed with the refrigerant discharged from the compressor through the intermediate air supply branch; the function of the evaporator is that when the low-temperature condensed refrigerant liquid passes through the evaporator, it exchanges heat with the outside air, vaporizes and absorbs heat, and achieves a refrigeration effect;

[0009] The above-mentioned compressor, condenser, throttle valve, expansion compressor composition structure, device types and working principles are merely examples of an embodiment of the present invention. There may also be other structures that form a corresponding refrigeration and heating system with the evaporator of the present application, and the embodiment of the present invention does not impose too many restrictions on this.

[0010] The refrigeration method of the embodiment of the present invention can be applied to terminal hardware. The terminal may be, but is not limited to, various industrial computers, personal computers, laptops, tablet computers, and portable wearable devices. The embodiment of the present invention does not limit the specific type of the terminal. The operating system of the terminal may include Android, Harmony OS, IOS, Windows Phone, Windows, etc. The present invention does not impose too many restrictions on this.

[0011] In an embodiment of the present invention, first, the sunshine time ratio and rainfall time ratio of the corresponding area of ​​the commercial building can be obtained; in an embodiment of the present invention, the commercial building can be an industrial data center or an apartment building with a refrigeration system such as a central air conditioner. Further, in an embodiment of the present invention, climate information of the corresponding area of ​​the commercial building can be obtained, and then the sunshine time and rainfall time of the preset time period of the area can be statistically identified based on the climate information, and then the sunshine time ratio and rainfall time ratio can be obtained by the ratio of the sunshine time and rainfall time to the length of the preset time period.

[0012] For example, the preset time period is a certain month, the sunshine time in the month can be 120h, and the rainfall time in the month can be 3.9h, then the sunshine time ratio can be calculated as 120h / 720h; the rainfall time ratio is 3.9h / 720h, that is, in the embodiment of the present invention, the sunshine time ratio refers to the total time of sunlight in the area, and the rainfall time ratio refers to the total time of rainfall in the area.

[0013] Step S102, obtaining the volume coefficient of the commercial building;

[0014] Step S103, simulating the personnel distribution map using the volume coefficient of the commercial building;

[0015] Furthermore, in the embodiment of the present invention, the volume coefficient of the commercial building can also be obtained. The volume coefficient may refer to the unit population density, and the personnel distribution map can be simulated according to the volume coefficient;

[0016] Specifically applied to the embodiment of the present invention, the use of the volume coefficient of the commercial building to simulate the personnel distribution map includes: obtaining the occupancy rate and occupancy position of the commercial building; and generating a personnel distribution map for each floor according to the occupancy rate, occupancy position and volume coefficient.

[0017] In a preferred embodiment of the embodiments of the present invention, generating a personnel distribution map for each floor based on the occupancy rate, occupancy position and volume coefficient includes: obtaining the building area of ​​the commercial building; calculating the number of personnel in the commercial building based on the building area and the volume coefficient; determining the personnel distribution points on each floor based on the number of personnel and the occupancy rate and occupancy position; and generating a personnel distribution map through each set of personnel distribution points.

[0018] In the embodiment of the present invention, the occupancy rate refers to the ratio of the total number of units in the commercial building to the number of occupied units. For example, if the total number of building units in a commercial building is 400 and the number of occupied building units is 128, then the occupancy rate is 128 / 400. Furthermore, the occupancy position refers to the three-dimensional position of the building unit in the building drawing. In the embodiment of the present invention, the number of personnel in the commercial building is first calculated, and then each distribution point where the personnel is concentrated is obtained through the occupancy rate and the occupancy position, and then the distribution points are aggregated to generate a personnel distribution map, such as Figure 2 As shown in the schematic diagram, the personnel distribution diagram can be divided into the first layer and the second layer. Each distribution point can be provided with an air inlet and an air outlet of a central air conditioner to adjust the temperature and humidity, etc. Of course, the above-mentioned number of floors and number of personnel are only an example of an embodiment of the present invention, and other numbers of floors and numbers of personnel may also be included. The embodiment of the present invention does not impose too many restrictions on this.

[0019] Step S104, calculating the dissipation function of the building layout space through the sunshine time ratio, the rainfall time ratio, and the personnel distribution diagram;

[0020] After obtaining the personnel distribution map, the dissipation function of the building layout space can be obtained by combining the sunshine time ratio and the rainfall time ratio; in the embodiment of the present invention, the dissipation function includes a first dissipation function and a second dissipation function; the second dissipation function refers to a momentum function in which the hot fluid and the cold fluid have the same flow direction and flow in the same direction during the heat exchange process; the first dissipation function refers to a momentum function in which the hot fluid and the cold fluid have opposite flow directions and flow in opposite directions during the heat exchange process;

[0021] In a preferred embodiment of the present invention, the dissipation function includes a first dissipation function and a second dissipation function; the dissipation function of the building layout space calculated by the sunshine time ratio, the rainfall time ratio and the personnel distribution diagram includes:

[0022] Calculating a first dissipation function and a second dissipation function of a sub-building space of a building layout space according to the personnel distribution diagram under the sunshine time ratio and the rainfall time ratio;

[0023] The total dissipation function is calculated according to the first dissipation function and the second dissipation function.

[0024] Specifically applied to the embodiment of the present invention, the first dissipation function and the second dissipation function of the sub-building space of the building layout space are calculated according to the personnel distribution diagram under the sunshine time ratio and the rainfall time ratio, including:

[0025] The temperature variation coefficient of commercial buildings is calculated under different sunshine time ratios and rainfall time ratios;

[0026] A first dissipation function and a second dissipation function of a sub-building space of a building layout space are obtained according to the temperature variation coefficient and the personnel distribution diagram of the commercial building.

[0027] The expression of the first dissipation function is as follows:

[0028]

[0029] in, represents the first dissipation function, t is the unit time, ρ is the fluid density, U is the second-order symmetric stress tensor, λ is the fluid thermal conductivity, gradT is the normal temperature gradient of the heat transfer surface, p is the surface stress acting on the unit volume, h represents the specific enthalpy of the fluid, The first direction of the gas flow velocity representing the personnel distribution diagram, represents the temperature variation coefficient;

[0030]

[0031] in, represents the second dissipation function, is the internal heat source of the fluid, v represents the second direction of the gas flow velocity of the personnel distribution diagram, w represents the third direction of the gas flow velocity of the personnel distribution diagram, h represents the specific enthalpy of the fluid, and x, y, z represent the empirical coefficients;

[0032]

[0033] in, Represents the total dissipation function; after obtaining the dissipation function of the building layout space, the thermal control parameters of each building layout space can be calculated according to the dissipation function. In the embodiment of the present invention, the operation of the refrigerant fluid dynamics is simulated by the dissipation function to improve the accuracy of the simulation.

[0034] Step S105, calculating the thermal control parameters of each building layout space according to the dissipation function;

[0035] Specifically applied to the embodiment of the present invention, the thermal control parameters of each building layout space are calculated according to the dissipation function, including: obtaining the building thickness, surface area, thermal conductivity, total thermal resistance, and internal and external gas convection heat transfer coefficients; calculating the internal and external temperature difference according to the building thickness, surface area, thermal conductivity, total thermal resistance, internal and external gas convection heat transfer coefficients and total dissipation function; and determining the internal and external temperature difference as the thermal control parameter of the building layout space.

[0036]

[0037] in, Indicates the temperature difference between inside and outside. Indicates the thickness of the building, Represents the surface area of ​​the building layout space, represents the thermal conductivity of the building wall, represents the total thermal resistance, represents the external gas convection heat transfer coefficient, represents the internal gas convection heat transfer coefficient, Indicates the proportion of sunshine time, Indicates the proportion of rainfall time.

[0038] Step S106: Control the operation of the refrigeration system according to the thermal control parameters.

[0039] In actual application to the embodiments of the present invention, after obtaining the thermal control parameters, the operation of the refrigeration system can be controlled according to the thermal control parameters; for example, the thermal control parameters may include the cooling tower outlet water temperature, the low-temperature water temperature generated by the chiller, etc., and the embodiments of the present invention do not impose excessive restrictions on this. Controlling the operation of the refrigeration system according to the above parameters can effectively switch the control temperature, improve the performance of operation prediction, save resources, and reduce equipment operating costs; further applied to the embodiments of the present invention, after obtaining the above thermal control parameters, the above thermal control parameters can be combined with PID control to calculate the deviation between the given value and the actual output value, and the deviation can be used as feedback for the next control process to further obtain precise temperature control, thereby achieving precise control of the temperature of the refrigeration system and saving costs.

[0040] In an embodiment of the present invention, the intelligent refrigeration control method includes: obtaining the sunshine time ratio and rainfall time ratio of the corresponding area of ​​the commercial building; obtaining the volume coefficient of the commercial building; simulating the personnel distribution map by using the volume coefficient of the commercial building; calculating the dissipation function of the building layout space through the sunshine time ratio, rainfall time ratio and the personnel distribution map; calculating the thermal control parameters of each building layout space according to the dissipation function; controlling the operation of the refrigeration system according to the thermal control parameters; calculating the personnel distribution of the commercial building of the central air-conditioning system, and combining the sunshine time and rainfall time in the area; obtaining the aerodynamic thermal control parameters of the building layout space according to the above three, predicting the operation of the refrigeration system through the thermal control parameters, so that the switching control temperature changes with the environmental changes, improves the performance of operation prediction, saves resources, and reduces equipment operating costs.

[0041] It should be noted that, for the method embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that this embodiment is not limited by the order of the actions described, because according to this embodiment, some steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily required by this embodiment.

[0042] Reference Figure 3 , shows a structural block diagram of an intelligent refrigeration control system embodiment of this embodiment, which may specifically include the following modules:

[0043] The first acquisition module 301 is used to acquire the sunshine time ratio and the rainfall time ratio of the corresponding area of ​​the commercial building;

[0044] The second acquisition module 302 is used to acquire the volume coefficient of the commercial building;

[0045] A simulation module 303, for simulating the personnel distribution diagram by using the volume coefficient of the commercial building;

[0046] A dissipation function calculation module 304 is used to calculate the dissipation function of the building layout space through the sunshine time ratio, the rainfall time ratio and the personnel distribution diagram;

[0047] A thermal control parameter module 305, for calculating the thermal control parameters of each building layout space according to the dissipation function;

[0048] The operation module 306 is used to control the operation of the refrigeration system according to the thermal control parameters.

[0049] Preferably, the simulation module comprises:

[0050] The acquisition submodule is used to obtain the occupancy rate and occupancy location of commercial buildings;

[0051] A generation submodule is used to generate a personnel distribution map of each floor according to the occupancy rate, occupancy position and volume coefficient.

[0052] Preferably, the dissipation function includes a first dissipation function, a second dissipation function and a total dissipation function; the dissipation function calculation module includes;

[0053] A calculation submodule, used for calculating the first dissipation function and the second dissipation function of the sub-building space of the building layout space according to the personnel distribution diagram under the sunshine time ratio and the rainfall time ratio;

[0054] The total dissipation function calculation submodule is used to calculate the total dissipation function according to the first dissipation function and the second dissipation function.

[0055] Preferably, the thermal control parameter module includes:

[0056] The first acquisition submodule is used to obtain the building thickness, surface area, thermal conductivity, total thermal resistance, and internal and external gas convection heat transfer coefficient;

[0057] The internal and external temperature difference submodule is used to calculate the internal and external temperature difference according to the thickness, surface area, thermal conductivity, total thermal resistance, internal and external gas convection heat transfer coefficient and dissipation function of the building;

[0058] The thermal control parameter determination submodule is used to determine the internal and external temperature difference as the thermal control parameter of the building layout space.

[0059] Preferably, the generating submodule comprises:

[0060] The second acquisition unit is used to acquire the building area of ​​the commercial building;

[0061] A calculation unit, used for calculating the number of people in the commercial building according to the building area and the volume coefficient;

[0062] A determination unit, used to determine the personnel distribution points on each floor according to the number of personnel, the occupancy rate, and the occupancy positions;

[0063] A generating unit is used to generate a personnel distribution map through each personnel distribution point set.

[0064] Preferably, the calculation submodule includes:

[0065] A temperature variation coefficient calculation unit is used to calculate the temperature variation coefficient of commercial buildings under different sunshine time ratios and rainfall time ratios;

[0066] The dissipation function calculation unit is used to obtain the first dissipation function and the second dissipation function of the sub-building space of the building layout space according to the temperature variation coefficient and the personnel distribution diagram of the commercial building.

[0067] Each module in the above intelligent refrigeration control system can be implemented in whole or in part by software, hardware and their combination. Each module can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the corresponding operations of each module.

[0068] The intelligent refrigeration control system provided above can be used to execute the intelligent refrigeration control method provided in any of the above embodiments, and has corresponding functions and beneficial effects.

[0069] In one embodiment, a computer device is provided, whose internal structure diagram can be as follows: Figure 4 As shown. The computer device includes a processor, a memory, a network interface, a display screen and an input device connected through a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The network interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, an intelligent refrigeration control device method is implemented. The display screen of the computer device can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covered on the display screen, or a key, trackball or touchpad set on the computer device housing, or an external keyboard, touchpad or mouse, etc.

[0070] Those skilled in the art will understand that Figure 4 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0071] In one embodiment, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and when the processor executes the computer program, the steps of the above embodiment are implemented:

[0072] Obtain the sunshine time ratio and rainfall time ratio of the corresponding area of ​​the commercial building;

[0073] Get the volume coefficient of commercial buildings;

[0074] Simulating the personnel distribution map using the volume coefficient of the commercial building;

[0075] The dissipation function of the building layout space is calculated by using the sunshine time ratio, rainfall time ratio and personnel distribution diagram;

[0076] Calculating the thermal control parameters of each building layout space according to the dissipation function;

[0077] The operation of the refrigeration system is controlled according to the thermal control parameter.

[0078] Preferably, the simulating the personnel distribution diagram using the volume coefficient of the commercial building includes:

[0079] Obtain the occupancy rate and location of commercial buildings;

[0080] A personnel distribution map of each floor is generated according to the occupancy rate, occupancy position and volume coefficient.

[0081] Preferably, the dissipation function includes a first dissipation function and a second dissipation function; the dissipation function of the building layout space calculated by the sunshine time ratio, the rainfall time ratio and the personnel distribution diagram includes:

[0082] Calculating a first dissipation function and a second dissipation function of a sub-building space of a building layout space according to the personnel distribution diagram under the sunshine time ratio and the rainfall time ratio;

[0083] The total dissipation function is calculated according to the first dissipation function and the second dissipation function.

[0084] Preferably, the step of calculating the thermal control parameters of each building layout space according to the dissipation function comprises:

[0085] Obtain the building's thickness, surface area, thermal conductivity, total thermal resistance, and internal and external gas convection heat transfer coefficients;

[0086] The internal and external temperature difference is calculated based on the thickness, surface area, thermal conductivity, total thermal resistance, internal and external gas convection heat transfer coefficient and dissipation function of the building;

[0087] The inside-outside temperature difference is determined as a thermal control parameter of the building layout space.

[0088] Preferably, generating a personnel distribution map of each floor according to the occupancy rate, occupancy position and volume coefficient includes:

[0089] Get the floor area of ​​commercial buildings;

[0090] Calculate the number of people in the commercial building based on the building area and volume coefficient;

[0091] Determine the personnel distribution points on each floor according to the number of personnel, occupancy rate, and occupancy positions;

[0092] A personnel distribution map is generated through each personnel distribution point set.

[0093] Preferably, the first dissipation function and the second dissipation function of the sub-building space of the building layout space are calculated according to the personnel distribution diagram under the sunshine time ratio and the rainfall time ratio, including:

[0094] The temperature variation coefficient of commercial buildings is calculated under different sunshine time ratios and rainfall time ratios;

[0095] A first dissipation function and a second dissipation function of a sub-building space of a building layout space are obtained according to the temperature variation coefficient and the personnel distribution diagram of the commercial building.

[0096] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps of the above embodiment are implemented:

[0097] Obtain the sunshine time ratio and rainfall time ratio of the corresponding area of ​​the commercial building;

[0098] Get the volume coefficient of commercial buildings;

[0099] Simulating the personnel distribution map using the volume coefficient of the commercial building;

[0100] The dissipation function of the building layout space is calculated by using the sunshine time ratio, rainfall time ratio and personnel distribution diagram;

[0101] Calculating the thermal control parameters of each building layout space according to the dissipation function;

[0102] The operation of the refrigeration system is controlled according to the thermal control parameter.

[0103] Preferably, the simulating the personnel distribution diagram using the volume coefficient of the commercial building includes:

[0104] Obtain the occupancy rate and location of commercial buildings;

[0105] A personnel distribution map of each floor is generated according to the occupancy rate, occupancy position and volume coefficient.

[0106] Preferably, the dissipation function includes a first dissipation function and a second dissipation function; the dissipation function of the building layout space calculated by the sunshine time ratio, the rainfall time ratio and the personnel distribution diagram includes:

[0107] Calculating a first dissipation function and a second dissipation function of a sub-building space of a building layout space according to the personnel distribution diagram under the sunshine time ratio and the rainfall time ratio;

[0108] The total dissipation function is calculated according to the first dissipation function and the second dissipation function.

[0109] Preferably, the step of calculating the thermal control parameters of each building layout space according to the dissipation function comprises:

[0110] Obtain the building's thickness, surface area, thermal conductivity, total thermal resistance, and internal and external gas convection heat transfer coefficients;

[0111] The internal and external temperature difference is calculated based on the thickness, surface area, thermal conductivity, total thermal resistance, internal and external gas convection heat transfer coefficient and dissipation function of the building;

[0112] The inside-outside temperature difference is determined as a thermal control parameter of the building layout space.

[0113] Preferably, generating a personnel distribution map of each floor according to the occupancy rate, occupancy position and volume coefficient includes:

[0114] Get the floor area of ​​commercial buildings;

[0115] Calculate the number of people in the commercial building based on the building area and volume coefficient;

[0116] Determine the personnel distribution points on each floor according to the number of personnel, occupancy rate, and occupancy positions;

[0117] A personnel distribution map is generated through each personnel distribution point set.

[0118] Preferably, the first dissipation function and the second dissipation function of the sub-building space of the building layout space are calculated according to the personnel distribution diagram under the sunshine time ratio and the rainfall time ratio, including:

[0119] The temperature variation coefficient of commercial buildings is calculated under different sunshine time ratios and rainfall time ratios;

[0120] A first dissipation function and a second dissipation function of a sub-building space of a building layout space are obtained according to the temperature variation coefficient and the personnel distribution diagram of the commercial building.

[0121] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0122] It will be appreciated by those skilled in the art that the embodiments of the present invention may be provided as methods, devices, or computer program products. Therefore, the embodiments of the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the embodiments of the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0123] The embodiments of the present invention are described with reference to the flowcharts and / or block diagrams of the methods, terminal devices (systems), and computer program products according to the embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of the processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing terminal device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing terminal device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0124] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing terminal device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0125] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal device so that a series of operating steps are executed on the computer or other programmable terminal device to produce a computer-implemented process, thereby providing instructions for implementing the process in the computer or other programmable terminal device. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0126] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0127] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0128] The above is a detailed introduction to an intelligent refrigeration control method, an intelligent refrigeration control device, a computer device and a computer-readable storage medium provided by the present invention. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; at the same time, for a general technician in this field, according to the idea of ​​the present invention, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. An intelligent refrigeration control method, characterized in that: A refrigeration system for a commercial building; the method comprising: Obtain the sunshine time ratio and rainfall time ratio of the corresponding area of ​​the commercial building; Get the volume coefficient of commercial buildings; Simulating a personnel distribution diagram using the volume coefficient of the commercial building; The dissipation function of the building layout space is calculated by using the sunshine time ratio, rainfall time ratio and personnel distribution diagram; Calculating the thermal control parameters of each building layout space according to the dissipation function; controlling the operation of the refrigeration system according to the thermal control parameters; The dissipation function includes a first dissipation function and a second dissipation function; the second dissipation function refers to a momentum function in which the hot fluid and the cold fluid have the same flow direction and flow in the same direction during the heat exchange process; the first dissipation function refers to a momentum function in which the hot fluid and the cold fluid have opposite flow directions and flow in opposite directions during the heat exchange process. The dissipation function of the building layout space calculated by the sunshine time ratio, the rainfall time ratio, and the personnel distribution map includes: Calculating a first dissipation function and a second dissipation function of a sub-building space of a building layout space according to the personnel distribution diagram under the sunshine time ratio and the rainfall time ratio; The temperature variation coefficient of commercial buildings is calculated under different sunshine time ratios and rainfall time ratios; Obtaining a first dissipation function and a second dissipation function of a sub-building space of a building layout space according to the temperature variation coefficient and the personnel distribution diagram of the commercial building; Calculating a total dissipation function according to the first dissipation function and the second dissipation function; The expression of the first dissipation function is as follows: Among them, φ1 represents the first dissipation function, t is the unit time, ρ is the fluid density, U is the second-order symmetric stress tensor, λ is the fluid thermal conductivity, gradT is the normal temperature gradient of the heat transfer surface, p is the surface stress acting on the unit volume, h represents the fluid specific enthalpy, u represents the first direction of the gas flow velocity of the personnel distribution diagram, and σ represents the temperature variation coefficient; Among them, φ2 represents the second dissipation function, S h is the internal heat source of the fluid, v represents the second direction of the gas flow velocity of the personnel distribution diagram, w represents the third direction of the gas flow velocity of the personnel distribution diagram, h represents the specific enthalpy of the fluid, and x, y, z represent the empirical coefficients; φ=φ2+φ1; Wherein, φ represents the total dissipation function; after the dissipation function of the building layout space is obtained, the thermal control parameters of each building layout space are calculated according to the dissipation function.

2. The intelligent refrigeration control method according to claim 1, characterized in that: The step of simulating the personnel distribution diagram by using the volume coefficient of the commercial building includes: Obtain the occupancy rate and location of commercial buildings; A personnel distribution map of each floor is generated according to the occupancy rate, occupancy position and volume coefficient.

3. The intelligent refrigeration control method according to claim 1, characterized in that: The step of calculating the thermal control parameters of each building layout space according to the dissipation function includes: Obtain the building's thickness, surface area, thermal conductivity, total thermal resistance, and internal and external gas convection heat transfer coefficients; The internal and external temperature difference is calculated based on the thickness, surface area, thermal conductivity, total thermal resistance, internal and external gas convection heat transfer coefficient and dissipation function of the building; The inside-outside temperature difference is determined as a thermal control parameter of the building layout space.

4. The intelligent refrigeration control method according to claim 2, characterized in that: The generating of a personnel distribution map of each floor according to the occupancy rate, occupancy position and volume coefficient includes: Get the floor area of ​​commercial buildings; Calculate the number of people in the commercial building based on the building area and volume coefficient; Determine the personnel distribution points on each floor according to the number of personnel, occupancy rate, and occupancy positions; A personnel distribution map is generated through each personnel distribution point set.

5. An intelligent refrigeration control system, characterized in that: A refrigeration system for a commercial building; the system comprising: The first acquisition module is used to acquire the sunshine time ratio and rainfall time ratio of the corresponding area of ​​the commercial building; The second acquisition module is used to obtain the volume coefficient of the commercial building; A simulation module, used to simulate a personnel distribution diagram using the volume coefficient of the commercial building; A dissipation function calculation module, used to calculate the dissipation function of the building layout space through the sunshine time ratio, rainfall time ratio and personnel distribution diagram; A thermal control parameter module, used to calculate the thermal control parameters of each building layout space according to the dissipation function; An operation module, used for controlling the operation of the refrigeration system according to the thermal control parameters; The dissipation function includes a first dissipation function and a second dissipation function; the second dissipation function refers to a momentum function in which the hot fluid and the cold fluid have the same flow direction and flow in the same direction during the heat exchange process; the first dissipation function refers to a momentum function in which the hot fluid and the cold fluid have opposite flow directions and flow in opposite directions during the heat exchange process. The dissipation function of the building layout space calculated by the sunshine time ratio, the rainfall time ratio, and the personnel distribution map includes: Calculating a first dissipation function and a second dissipation function of a sub-building space of a building layout space according to the personnel distribution diagram under the sunshine time ratio and the rainfall time ratio; The temperature variation coefficient of commercial buildings is calculated under different sunshine time ratios and rainfall time ratios; Obtaining a first dissipation function and a second dissipation function of a sub-building space of a building layout space according to the temperature variation coefficient and the personnel distribution diagram of the commercial building; Calculating a total dissipation function according to the first dissipation function and the second dissipation function; The expression of the first dissipation function is as follows: Among them, φ1 represents the first dissipation function, t is the unit time, ρ is the fluid density, U is the second-order symmetric stress tensor, λ is the fluid thermal conductivity, gradT is the normal temperature gradient of the heat transfer surface, p is the surface stress acting on the unit volume, h represents the fluid specific enthalpy, u represents the first direction of the gas flow velocity of the personnel distribution diagram, and σ represents the temperature variation coefficient; Among them, φ2 represents the second dissipation function, S h is the internal heat source of the fluid, v represents the second direction of the gas flow velocity of the personnel distribution diagram, w represents the third direction of the gas flow velocity of the personnel distribution diagram, h represents the specific enthalpy of the fluid, and x, y, z represent the empirical coefficients; φ=φ2+φ1; Wherein, φ represents the total dissipation function; after the dissipation function of the building layout space is obtained, the thermal control parameters of each building layout space are calculated according to the dissipation function.

6. The intelligent refrigeration control system according to claim 5, characterized in that: The simulation module includes: The acquisition submodule is used to obtain the occupancy rate and occupancy location of commercial buildings; A generation submodule is used to generate a personnel distribution map of each floor according to the occupancy rate, occupancy position and volume coefficient.

7. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that: When the processor executes the computer program, the steps of the intelligent refrigeration control method according to any one of claims 1 to 4 are implemented.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the intelligent refrigeration control method according to any one of claims 1 to 4 are implemented.

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