Water supply temperature control method, control device, electronic device and storage medium

Abstract

The embodiments of the present application disclose a method, a control device, an electronic device and a storage medium for controlling the water supply temperature. The method comprises: collecting the water supply temperature and the return water temperature of the temperature control system at predetermined time intervals, wherein the predetermined time interval is the cycle time required for the water in the pipe of the temperature control system to flow one circle; calculating the characteristic value of the temperature control system at the current moment according to the supply water temperature, the return water temperature and the preset indoor temperature; updating the average characteristic value of the temperature control system according to the characteristic value; comparing the characteristic value with the average characteristic value to control the water supply temperature. Through this application, the technical problem that the traditional heating / cooling adjustment method based on indoor and outdoor temperatures in the related art easily leads to poor heating / cooling effects is solved, and the technical effect of more accurately reflecting changes in heat load demand, reducing heating / cooling costs and energy waste, and greatly improving heating / cooling effects is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of heating and cooling control, and in particular to a method, a control device, an electronic device and a storage medium for controlling water supply temperature. Background Art

[0002] The key to heating / cooling control is timely and accurate judgment of changes in heat load demand. This involves providing more heating / cooling when heat is needed and less heating / cooling when it is not. Traditional heating / cooling control systems adjust heating / cooling capacity by controlling indoor temperature and compensating for outdoor temperature. However, existing solutions have the following drawbacks:

[0003] (1) Existing solutions are extremely dependent on unreliable sensor data.

[0004] The data collected by traditional indoor and outdoor temperature sensors is unreliable. Existing solutions are based on these sensors, which directly leads to a lack of scientific rigor, a significant discrepancy between control results and actual needs, and poor heating / cooling performance.

[0005] (2) Existing solutions rely heavily on manual experience.

[0006] Due to the unpredictability of heat loads, existing temperature control solutions require experienced operators to monitor and control the units based on collected data and intervene in the automation process in order to achieve proactive and flexible regulation. This directly increases the experience requirements for frontline operators, significantly raising the technical threshold for heating / cooling controllers and directly impacting the widespread adoption of heating / cooling control methods.

[0007] (3) Personnel dominate the major decisions regarding heating / cooling control.

[0008] Some automated control units experience some degree of human interference. This is particularly pronounced during extreme weather conditions. This demonstrates the reduced stability of current automatic control systems when faced with challenging conditions. To address this, heating and cooling companies often resort to manual decision-making.

[0009] (4) The heating / cooling comfort of the existing solution is poor.

[0010] While it's possible to identify existing heating / cooling units with superior performance, these units generally suffer from variable performance, making it impossible to achieve uniform heating / cooling comfort. This directly leads to energy-wasting practices like opening windows at the end of the unit to dissipate heat.

[0011] (5) The existing solution causes serious energy waste.

[0012] To alleviate complaints, most companies resort to excessive heating / cooling control. In some extreme cases, water supply temperatures are even set to maximum or minimum levels to reduce complaints. These heating / cooling strategies significantly waste energy.

[0013] (6) The existing control system has a large number of sensors and a huge amount of data, which is not conducive to controller control.

[0014] There are a wide variety of sensor types used to collect indoor and outdoor temperature data. For heating / cooling companies, simply installing two sensors isn't a big deal. However, compiling and analyzing this data in a comprehensive and detailed manner is extremely difficult. This requires not only significant human and material resources but also a robust hardware foundation.

[0015] (7) The comfort evaluation index is incorrect.

[0016] From a heat transfer perspective, heat demand is dependent on many factors, and single indoor and outdoor temperature data rarely reflects the complete and true user experience. This can be seen in the perceived temperature indicator: indoor and outdoor temperature values ​​cannot accurately reflect the surface temperature or comfort of the human body within the building.

[0017] For the above problems, no effective solutions have been proposed yet. Summary of the Invention

[0018] The embodiments of the present application provide a water supply temperature control method, a control device, an electronic device, and a storage medium to at least solve the technical problem in the related art that the traditional heating / cooling adjustment method based on indoor and outdoor temperatures easily leads to poor heating / cooling effects.

[0019] According to one aspect of an embodiment of the present application, a method for controlling water supply temperature is provided, comprising: collecting the water supply temperature and return water temperature of a temperature control system at predetermined time intervals, wherein the predetermined time interval is the cycle time required for water in a pipe in the temperature control system to flow one circle; calculating a characteristic value of the temperature control system at the current moment based on the supply water temperature, the return water temperature, and a preset indoor temperature; updating an average characteristic value of the temperature control system based on the characteristic value; and comparing the characteristic value with the average characteristic value to control the water supply temperature.

[0020] Optionally, the characteristic value of the temperature control system at the current moment is calculated based on the supply water temperature, the return water temperature and the preset indoor temperature, including: subtracting the square value of the return water temperature from the square value of the preset indoor temperature to obtain a first temperature square difference; subtracting the square value of the supply water temperature from the square value of the preset indoor temperature to obtain a second temperature square difference; dividing the first temperature square difference by the second temperature square difference to obtain a first ratio; dividing the square value of the return water temperature by the square value of the supply water temperature to obtain a second ratio; dividing the first ratio by the second ratio to obtain the characteristic value.

[0021] Optionally, the characteristic value is compared with the average characteristic value, and the water supply temperature is controlled, including: if the characteristic value is less than the average characteristic value, controlling the water supply temperature to increase; if the characteristic value is greater than the average characteristic value, controlling the water supply temperature to decrease; if the characteristic value is equal to the average characteristic value, keeping the water supply temperature unchanged.

[0022] Optionally, controlling to increase the water supply temperature includes: obtaining a characteristic value of the temperature control system used to characterize the energy-saving status of the system; judging whether the characteristic value used to characterize the energy-saving status of the system is less than the characteristic value; if the characteristic value used to characterize the energy-saving status of the system is less than the characteristic value, adjusting the water supply temperature by using the first temperature as the temperature increase amplitude; if the characteristic value used to characterize the energy-saving status of the system is greater than the characteristic value, adjusting the water supply temperature by using the second temperature as the temperature increase amplitude; if the characteristic value used to characterize the energy-saving status of the system is equal to the characteristic value, adjusting the water supply temperature by using the third temperature as the temperature increase amplitude; wherein, the first temperature The second temperature The third temperature.

[0023] Optionally, controlling to lower the water supply temperature includes: obtaining a characteristic value of the temperature control system used to characterize the energy-saving status of the system; judging whether the characteristic value used to characterize the energy-saving status of the system is less than the characteristic value; if the characteristic value used to characterize the energy-saving status of the system is less than the characteristic value, adjusting the water supply temperature by using the fourth temperature as the temperature reduction amplitude; if the characteristic value used to characterize the energy-saving status of the system is greater than the characteristic value, adjusting the water supply temperature by using the fifth temperature as the temperature reduction amplitude; if the characteristic value used to characterize the energy-saving status of the system is equal to the characteristic value, adjusting the water supply temperature by using the sixth temperature as the temperature reduction amplitude; wherein, the fourth temperature The fifth temperature The sixth temperature.

[0024] Optionally, obtaining the characteristic value of the temperature control system used to characterize the energy-saving status of the system includes: obtaining a function expression of the supply water temperature and a function expression of the return water temperature; integrating the function expression of the supply water temperature and the predetermined time interval to obtain the integral value of the supply water temperature of the temperature control system; integrating the function expression of the return water temperature and the predetermined time interval to obtain the integral value of the return water temperature of the temperature control system; performing a ratio operation on the integral value of the supply water temperature and the integral value of the return water temperature to obtain the characteristic value used to characterize the energy-saving status of the system.

[0025] Optionally, a ratio operation is performed on the integral value of the supply water temperature and the integral value of the return water temperature to obtain the characteristic value used to characterize the energy-saving status of the system, including: subtracting the integral value of the supply water temperature from the integral value of the return water temperature to obtain a difference; dividing the difference by the integral value of the supply water temperature to obtain a third ratio; when the integral value of the supply water temperature is greater than 0, using the third ratio as the characteristic value used to characterize the energy-saving status of the system; or, when the integral value of the supply water temperature is less than 0, using the difference between 1 and the third ratio as the characteristic value used to characterize the energy-saving status of the system.

[0026] Optionally, the method further includes: calculating a topological equivalent value in the temperature control system for characterizing the thermal response characteristics of the building based on the supply water temperature, the return water temperature and the predetermined time interval; evaluating the thermal demand of the building based on the topological equivalent value for characterizing the thermal response characteristics of the building to determine the energy-saving status of the building.

[0027] According to another aspect of an embodiment of the present application, a water supply temperature control device is also provided, including: an acquisition module for collecting the water supply temperature and return water temperature of the temperature control system at predetermined time intervals, wherein the predetermined time interval is the cycle time required for water in the pipeline of the temperature control system to flow one circle; a calculation module for calculating the characteristic value of the temperature control system at the current moment based on the water supply temperature, the return water temperature and the preset indoor temperature; an update module for updating the average characteristic value of the temperature control system according to the characteristic value; and a control module for comparing the characteristic value with the average characteristic value to control the water supply temperature.

[0028] According to another aspect of an embodiment of the present application, an electronic device is further provided, comprising: a processor; and a memory for storing processor-executable instructions; wherein the processor is configured to execute the steps of any one of the above methods.

[0029] According to another aspect of an embodiment of the present application, a storage medium is further provided, which includes a stored program, wherein when the program is running, the device where the storage medium is located is controlled to execute the steps of any one of the above methods.

[0030] In an embodiment of the present application, the supply and return water temperatures of a temperature control system are collected at predetermined time intervals, where the predetermined time interval is the cycle time required for water in the pipes of the temperature control system to circulate one circle. Based on the supply and return water temperatures and a preset indoor temperature, a characteristic value of the temperature control system at the current moment is calculated. An average characteristic value of the temperature control system is updated based on the characteristic value. The characteristic value is then compared with the average characteristic value to control the supply water temperature. In other words, the embodiment of the present application does not rely on data collected by indoor and outdoor temperature sensors. Instead, it uses the supply and return water temperatures at predetermined time intervals to calculate the characteristic value of the temperature control system at the current moment, updates the average characteristic value of the temperature control system based on the characteristic value, and then controls the supply water temperature by comparing the characteristic value with the average characteristic value. This solves the technical problem in related arts that traditional heating / cooling control methods based on indoor and outdoor temperatures easily lead to poor heating / cooling effects. It achieves the technical effect of more accurately reflecting changes in heat load demand, reducing heating / cooling costs and energy waste, and significantly improving heating / cooling effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0032] Figure 1 A flow chart of a method for controlling water supply temperature provided in an embodiment of the present application;

[0033] Figure 2 Schematic diagram of a water supply temperature control device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0035] It should be noted that the terms "first," "second," and the like in the specification, claims, and drawings of this application are used to distinguish between different objects, rather than to define a specific order. The steps shown in the flowcharts of the accompanying drawings can be executed in a computer system, such as a set of computer-executable instructions, and although a logical order is shown in the flowcharts, in some cases, the steps shown or described may be executed in a different order than that shown.

[0036] According to one aspect of an embodiment of the present application, a method for controlling water supply temperature is provided. Figure 1 This is a flow chart of a method for controlling the water supply temperature provided in an embodiment of the present application, such as Figure 1 As shown, the method includes the following steps:

[0037] Step S102, collecting the supply water temperature and return water temperature of the temperature control system at a predetermined time interval, wherein the predetermined time interval is the cycle time required for water in the pipe of the temperature control system to flow one circle;

[0038] Step S104, calculating the characteristic value of the temperature control system at the current moment based on the supply water temperature, the return water temperature and the preset indoor temperature;

[0039] The parameters describing different characteristics of similar systems are reduced to the characteristic values ​​of the object, also known as For example, the characteristic value describing the differences among users of the temperature control system is , also known as the characteristic value of the temperature control system; the characteristic value describing the difference in building maintenance is , also known as the characteristic value of the building; among them, Subscript It is the abbreviation of building, which is used to distinguish the characteristic values ​​of the building from the characteristic values ​​of the temperature control system. ) includes factors such as building maintenance structure, secondary pipe network balance, temperature control system energy saving, environmental changes, etc.

[0040] The above-mentioned preset indoor temperature can be set according to the needs of the application scenario. Optionally, the value range of the preset indoor temperature is 18°C ​​to 22°C, which is equivalent to the value range of the thermodynamic temperature being 291.15 to 295.15K. The preset indoor temperature can be set to any value within this value range.

[0041] Step S106, updating the average characteristic value of the temperature control system according to the characteristic value;

[0042] The above average characteristic values ​​of the temperature control system are the average values ​​of the real-time characteristic values ​​of the temperature control system in the past time period, including but not limited to 1 hour, 6 hours, 12 hours, etc. In special cases, the value may be 24 hours.

[0043] Step S108: Compare the characteristic value with the average characteristic value and control the water supply temperature.

[0044] Optionally, the actual indoor temperature can be adjusted to the expected value by adjusting the water supply temperature, thereby effectively improving the heating / cooling effect.

[0045] Optionally, the temperature units of the above-mentioned supply water temperature, return water temperature and preset indoor temperature include but are not limited to Celsius (Celsius temperature scale), Kelvin (thermodynamic temperature scale), etc. For example, if the temperature units of the supply water temperature, return water temperature and preset indoor temperature are Celsius, the Celsius temperature scale can be converted to the thermodynamic temperature scale first, and then the corresponding characteristic value calculation can be performed; the corresponding characteristic value calculation can also be performed in the same way. Among them, there is a correlation between the thermodynamic temperature scale and the Celsius temperature scale, that is, the thermodynamic temperature scale (Kelvin) degrees Celsius 273.15.

[0046] It should be noted that the above-mentioned temperature control system includes but is not limited to heating systems, cooling systems, etc. In addition, the temperature control system is a system that achieves indoor comfort and energy saving by controlling indoor parameters such as temperature, humidity, and air flow. The temperature control system usually includes multiple subsystems such as heating, cooling, ventilation, and air purification, and realizes automatic adjustment and control of parameters such as temperature, humidity, and air quality of the entire building through integrated control. The temperature control system can sense indoor temperature, humidity and other parameters through sensors, and automatically control the operation of heating, cooling, ventilation and other equipment according to preset temperature, humidity and other requirements to achieve indoor comfort and energy saving. The temperature control system can also be remotely controlled and monitored through the Internet, mobile phone APP, etc., making it convenient for users to adjust and monitor the temperature, humidity and other parameters of the building anytime and anywhere.

[0047] Through the above steps, it is possible to achieve a method that does not rely on the data collected by the indoor temperature and outdoor temperature sensors, but instead uses the water supply temperature and return water temperature at a predetermined time interval to calculate the characteristic value of the temperature control system at the current moment, and uses the characteristic value to update the average characteristic value of the temperature control system; then the characteristic value is compared with the average characteristic value to control the water supply temperature, thereby solving the technical problem in the related art that the traditional heating / cooling adjustment method based on indoor and outdoor temperatures easily leads to poor heating / cooling effects, achieving the technical effect of more accurately reflecting changes in heat load demand, reducing heating / cooling costs and energy waste, and greatly improving heating / cooling effects.

[0048] In an optional embodiment, the characteristic value of the temperature control system at the current moment is calculated based on the supply water temperature, the return water temperature and the preset indoor temperature, including: subtracting the square value of the return water temperature from the square value of the preset indoor temperature to obtain a first temperature square difference; subtracting the square value of the supply water temperature from the square value of the preset indoor temperature to obtain a second temperature square difference; dividing the first temperature square difference by the second temperature square difference to obtain a first ratio; dividing the square value of the return water temperature by the square value of the supply water temperature to obtain a second ratio; and dividing the first ratio by the second ratio to obtain the characteristic value.

[0049] Optionally, the characteristic value of the temperature control system at the current moment is calculated based on the supply water temperature, the return water temperature, and the preset indoor temperature. The following expression can be used:

[0050]

[0051] in, Indicates the water supply temperature; Indicates return water temperature; Indicates the preset indoor temperature; represents the characteristic value, and It should be noted that (heating), (Refrigeration).

[0052] In an optional embodiment of the present application, the characteristic values ​​of the temperature control system can be accurately obtained by calculating the supply water temperature, the return water temperature and the preset indoor temperature.

[0053] In an optional embodiment, the characteristic value is compared with the average characteristic value, and the water supply temperature is controlled, including: if the characteristic value is less than the average characteristic value, then the water supply temperature is controlled to increase; if the characteristic value is greater than the average characteristic value, then the water supply temperature is controlled to decrease; if the characteristic value is equal to the average characteristic value, then the water supply temperature is kept unchanged.

[0054] For example, when a temperature control system is operating in heating mode, the initial supply water temperature is 40°C and the return water temperature is 30°C. After a certain time, the supply water temperature is increased by 1°C. Within a unit of time, the return water temperature is measured to be 30.5°C at the moment the system stabilizes. The heat transfer efficiency of this adjustment process is 0.5. If the real-time characteristic value is 0.8 and the average characteristic value is 0.7, the next adjustment plan will reduce the supply water temperature by 0.2°C.

[0055] For example, when a temperature control system is operating in cooling mode, the initial supply water temperature is 7°C and the return water temperature is 12°C. After a certain time, the supply water temperature is lowered by 1°C. Within a unit of time, the return water temperature measured at the time the system stabilizes is 11.5°C. The heat transfer efficiency of this adjustment process is 0.5. If the real-time characteristic value is 0.8 and the average characteristic value is 0.7, the next adjustment plan will lower the supply water temperature by 0.2°C.

[0056] The average characteristic value can be calculated using a weighted average method or a simple average method. Set a control range for the water supply temperature, for example, an upper limit and a lower limit can be set to ensure that the water supply temperature is within a safe range. Install sensors or monitoring equipment in the temperature control system and calculate the real-time characteristic value. Compare the characteristic value with the average characteristic value. If the characteristic value is less than the average characteristic value, control the water supply temperature to increase. If the characteristic value is greater than the average characteristic value, control the water supply temperature to decrease. If the characteristic value is equal to the average characteristic value, control the water supply temperature to remain unchanged. Adjust and optimize according to actual conditions, for example, adjust according to factors such as season and weather to ensure that the water supply temperature is always at the optimal state.

[0057] In an optional embodiment, controlling the increase in water supply temperature includes: obtaining a characteristic value used by the temperature control system to characterize the energy-saving status of the system; determining whether the characteristic value used to characterize the energy-saving status of the system is less than the characteristic value; if the characteristic value used to characterize the energy-saving status of the system is less than the characteristic value, adjusting the water supply temperature by using the first temperature as the temperature increase amplitude; if the characteristic value used to characterize the energy-saving status of the system is greater than the characteristic value, adjusting the water supply temperature by using the second temperature as the temperature increase amplitude; if the characteristic value used to characterize the energy-saving status of the system is equal to the characteristic value, adjusting the water supply temperature by using the third temperature as the temperature increase amplitude; wherein, the first temperature Second temperature Third temperature.

[0058] Optionally, the first temperature, the second temperature and the third temperature can be flexibly set according to the needs of the application scenario. For example, the first temperature is 0.2°C, the second temperature is 0.1°C, and the third temperature is 0°C.

[0059] In an optional embodiment, controlling the reduction of the water supply temperature includes: obtaining a characteristic value used by the temperature control system to characterize the energy-saving status of the system; determining whether the characteristic value used to characterize the energy-saving status of the system is less than the characteristic value; if the characteristic value used to characterize the energy-saving status of the system is less than the characteristic value, adjusting the water supply temperature by using the fourth temperature as the temperature reduction amplitude; if the characteristic value used to characterize the energy-saving status of the system is greater than the characteristic value, adjusting the water supply temperature by using the fifth temperature as the temperature reduction amplitude; if the characteristic value used to characterize the energy-saving status of the system is equal to the characteristic value, adjusting the water supply temperature by using the sixth temperature as the temperature reduction amplitude; wherein, the fourth temperature Fifth Temperature Sixth temperature.

[0060] Optionally, the fourth temperature, the fifth temperature and the sixth temperature can be flexibly set according to the needs of the application scenario. For example, the fourth temperature is 0.2℃, the fifth temperature is 0.1℃, the sixth temperature is 0℃.

[0061] In an optional embodiment, obtaining a characteristic value of the temperature control system for characterizing the energy-saving status of the system includes: obtaining a function expression of the supply water temperature and a function expression of the return water temperature; integrating the function expression of the supply water temperature and a predetermined time interval to obtain an integral value of the supply water temperature of the temperature control system; integrating the function expression of the return water temperature and a predetermined time interval to obtain an integral value of the return water temperature of the temperature control system; performing a ratio operation on the integral value of the supply water temperature and the integral value of the return water temperature to obtain a characteristic value for characterizing the energy-saving status of the system.

[0062] Optionally, the calculation of the characteristic value representing the energy-saving status of the temperature control system requires continuous data of the supply and return water temperatures that change over time, and a predetermined time interval, wherein the predetermined time interval is represented by the cycle time of the comfort efficiency ratio. For example, the function expression of the supply water temperature is , the function expression of return water temperature is The starting time point of the calculation is .

[0063] Furthermore, when calculating the integral value of the water supply temperature, the integral range is the starting time point To the first interval time point , let the integral value be:

[0064]

[0065] in, and There is a gap of 1 Shuxiao ratio cycle time.

[0066] When calculating the integral value of the return water temperature, the integral range is the first interval time point To the second interval time point , let the integral value be:

[0067]

[0068] On the water supply temperature acceleration curve along the time axis, take an acceleration value as point, record the time corresponding to that point Continuing back along the time axis, we can find the acceleration value closest to this moment. point, record the time corresponding to that point The cycle time of the comfort-efficiency ratio is:

[0069]

[0070] In an optional embodiment of the present application, by calculating the supply water temperature, the return water temperature and the predetermined time interval, the integral value of the supply water temperature and the integral value of the return water temperature are obtained, and by using the ratio operation between the integral value of the supply water temperature and the integral value of the return water temperature, the characteristic value of the temperature control system used to characterize the energy-saving status of the system can be accurately obtained.

[0071] It should be noted that the characteristic value used by the temperature control system to characterize the system's energy efficiency is equal to the ratio of the heat gain benefit to the cost, indicating the heat gain benefit. This characteristic value is a real-time, changing physical quantity, and its magnitude is related to the overall condition of the temperature control system. This characteristic value is affected by the environment: as the ambient temperature rises, the characteristic value decreases; as the ambient temperature drops, the characteristic value increases.

[0072] In an optional embodiment, a ratio operation is performed on the integral value of the supply water temperature and the integral value of the return water temperature to obtain a characteristic value for characterizing the energy-saving status of the system, including: subtracting the integral value of the supply water temperature from the integral value of the return water temperature to obtain a difference; dividing the difference by the integral value of the supply water temperature to obtain a third ratio; when the integral value of the supply water temperature is greater than 0, using the third ratio as the characteristic value for characterizing the energy-saving status of the system; or, when the integral value of the supply water temperature is less than 0, using the difference between 1 and the third ratio as the characteristic value for characterizing the energy-saving status of the system.

[0073] Optionally, when calculating the integral value of the return water temperature, the integral range is the first interval time point To the second interval time point , then calculate The temperature control system at the moment is used to characterize the characteristic value of the system energy saving status The expression is as follows:

[0074]

[0075] In an optional embodiment of the present application, for two different scenarios of the integrated value of the water supply temperature, characteristic values ​​of the temperature control system used to characterize the energy-saving status of the system are accurately calculated. It should be noted that when the integrated value of the water supply temperature is 0, it indicates that the temperature control system is not temperature-controlled and there is no integrated value of the water supply temperature.

[0076] In addition, thermal comfort can be determined by using the characteristic value of the temperature control system used to characterize the energy-saving status of the system. For example, the characteristic value of the temperature control system used to characterize the energy-saving status of the system is set to for The comfort is best when When When When the pointer points to the overheating area, the comfort level is judged based on the linear relationship; when When , the pointer points to the overcooling area, and the comfort level is judged based on the linear relationship.

[0077] In an optional embodiment, the above method also includes: calculating a topological equivalent value for characterizing the thermal response characteristics of the building in the temperature control system based on the supply water temperature, the return water temperature and a predetermined time interval; evaluating the thermal demand of the building based on the topological equivalent value for characterizing the thermal response characteristics of the building to determine the energy-saving status of the building.

[0078] Optionally, the topological equivalent value describes the condition of the building envelope and is a building evaluation parameter.

[0079] Furthermore, after obtaining the topological equivalent value of a building within the temperature control system, it can be used to evaluate the building's thermal demand and determine the building's energy-saving status. For example, the larger the topological equivalent value, the worse the building's thermal insulation effect; the smaller the topological equivalent value, the better the building's thermal insulation effect.

[0080] In an optional embodiment of the present application, the topological equivalent value of the building in the temperature control system is calculated by the supply water temperature, the return water temperature and the predetermined time range, and the topological equivalent value is used to evaluate the heat demand of the building, so as to accurately judge the insulation effect of the building in the temperature control system.

[0081] It should be noted that the topological equivalent value represents the overall heat demand of a building or temperature control system. This value incorporates information such as the outdoor environment, the building envelope, indoor heat load variations, and the degree of balance between the two networks, comprehensively reflecting the current heat demand of the building or temperature control system.

[0082] According to another aspect of the embodiment of the present application, a device for controlling the water supply temperature is also provided. Figure 2 This is a schematic diagram of a water supply temperature control device provided in an embodiment of the present application, as shown in FIG. Figure 2 As shown, the water supply temperature control device includes: a collection module 202, a calculation module 204, an update module 206 and a control module 208. The water supply temperature control device is described in detail below.

[0083] A collection module 202 is used to collect the supply water temperature and return water temperature of the temperature control system at a predetermined time interval, wherein the predetermined time interval is the cycle time required for water in the pipe of the temperature control system to flow one circle;

[0084] The calculation module 204 is connected to the acquisition module 202 and is used to calculate the characteristic value of the temperature control system at the current moment based on the supply water temperature, the return water temperature and the preset indoor temperature;

[0085] An updating module 206 , connected to the calculation module 204 , configured to update an average characteristic value of the temperature control system according to the characteristic value;

[0086] The control module 208 is connected to the updating module 206 and is used to compare the characteristic value with the average characteristic value to control the water supply temperature.

[0087] In an embodiment of the present application, the device can achieve the goal of not relying on the data collected by the indoor temperature and outdoor temperature sensors, but instead using the water supply temperature and return water temperature at a predetermined time interval to calculate the characteristic value of the temperature control system at the current moment, and use the characteristic value to update the average characteristic value of the temperature control system; then the characteristic value is compared with the average characteristic value to control the water supply temperature, thereby solving the technical problem in the related art that the traditional heating / cooling adjustment method based on indoor and outdoor temperatures is prone to lead to poor heating / cooling effects, and achieving the technical effect of more accurately reflecting changes in heat load demand, reducing heating / cooling costs and energy waste, and greatly improving the heating / cooling effects.

[0088] It should be noted here that the above-mentioned acquisition module 202, calculation module 204, update module 206 and control module 208 correspond to steps S102 to S108 in the method embodiment. The examples and application scenarios implemented by the above-mentioned modules and corresponding steps are the same, but are not limited to the contents disclosed in the above-mentioned method embodiment.

[0089] Optionally, the above-mentioned calculation module 204 includes: a first calculation unit, used to subtract the square value of the return water temperature from the square value of the preset indoor temperature to obtain a first temperature square difference; a second calculation unit, used to subtract the square value of the supply water temperature from the square value of the preset indoor temperature to obtain a second temperature square difference; a third calculation unit, used to divide the first temperature square difference from the second temperature square difference to obtain a first ratio; a fourth calculation unit, used to divide the square value of the return water temperature from the square value of the supply water temperature to obtain a second ratio; and a fifth calculation unit, used to divide the first ratio from the second ratio to obtain a characteristic value.

[0090] Optionally, the above-mentioned control module 208 includes: a first control unit, which is used to control the water supply temperature to increase if the characteristic value is less than the average characteristic value; a second control unit, which is used to control the water supply temperature to decrease if the characteristic value is greater than the average characteristic value; and a third control unit, which is used to keep the water supply temperature unchanged if the characteristic value is equal to the average characteristic value.

[0091] Optionally, the first control unit includes: an acquisition subunit for acquiring a characteristic value of the temperature control system used to characterize the energy-saving status of the system; a judgment subunit for judging whether the characteristic value used to characterize the energy-saving status of the system is less than the characteristic value; a first adjustment subunit for adjusting the water supply temperature by using the first temperature as the temperature increase amplitude if the characteristic value used to characterize the energy-saving status of the system is less than the characteristic value; a second adjustment subunit for adjusting the water supply temperature by using the second temperature as the temperature increase amplitude if the characteristic value used to characterize the energy-saving status of the system is greater than the characteristic value; a third adjustment subunit for adjusting the water supply temperature by using the third temperature as the temperature increase amplitude if the characteristic value used to characterize the energy-saving status of the system is equal to the characteristic value; wherein, the first temperature Second temperature Third temperature.

[0092] Optionally, the second control unit includes: an acquisition subunit for acquiring a characteristic value of the temperature control system used to characterize the energy-saving status of the system; a judgment subunit for judging whether the characteristic value used to characterize the energy-saving status of the system is less than the characteristic value; a fourth adjustment subunit for adjusting the water supply temperature by using the fourth temperature as the temperature reduction amplitude if the characteristic value used to characterize the energy-saving status of the system is less than the characteristic value; a fifth adjustment subunit for adjusting the water supply temperature by using the fifth temperature as the temperature reduction amplitude if the characteristic value used to characterize the energy-saving status of the system is greater than the characteristic value; a sixth adjustment subunit for adjusting the water supply temperature by using the sixth temperature as the temperature reduction amplitude if the characteristic value used to characterize the energy-saving status of the system is equal to the characteristic value; wherein, the fourth temperature Fifth Temperature Sixth temperature.

[0093] Optionally, the above-mentioned acquisition subunit includes: a first acquisition subunit, used to obtain a function expression of the supply water temperature and a function expression of the return water temperature; a first calculation subunit, used to integrate the function expression of the supply water temperature and a predetermined time interval to obtain the integral value of the supply water temperature of the temperature control system; a second calculation subunit, used to integrate the function expression of the return water temperature and a predetermined time interval to obtain the integral value of the return water temperature of the temperature control system; a third calculation subunit, used to perform a ratio operation on the integral value of the supply water temperature and the integral value of the return water temperature to obtain a characteristic value used to characterize the energy-saving status of the system.

[0094] Optionally, the above-mentioned third calculation subunit includes: a difference calculation subunit, used to subtract the integral value of the supply water temperature from the integral value of the return water temperature to obtain a difference; a ratio calculation subunit, used to divide the difference from the integral value of the supply water temperature to obtain a third ratio; a processing subunit, used to use the third ratio as a characteristic value for characterizing the energy-saving status of the system when the integral value of the supply water temperature is greater than 0; or, when the integral value of the supply water temperature is less than 0, use the difference between 1 and the third ratio as a characteristic value for characterizing the energy-saving status of the system.

[0095] Optionally, the above-mentioned control device also includes: a first processing module, used to calculate the topological equivalent value used to characterize the thermal response characteristics of the building in the temperature control system based on the supply water temperature, the return water temperature and the predetermined time interval; a second processing module, used to evaluate the thermal demand of the building based on the topological equivalent value used to characterize the thermal response characteristics of the building, and determine the energy-saving status of the building.

[0096] According to another aspect of an embodiment of the present application, an electronic device is also provided, including: a processor; a memory for storing processor-executable instructions; wherein the processor is configured to execute the steps of any one of the above methods.

[0097] According to another aspect of an embodiment of the present application, a storage medium is further provided, the storage medium including a stored program, wherein when the program is executed, the device containing the storage medium is controlled to perform the steps of any of the above methods. Optionally, the storage medium includes but is not limited to a computer-readable storage medium.

[0098] In the above embodiments of the present application, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0099] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only exemplary. For example, the division of the modules can be a logical function division. In actual implementation, there may be other division methods, such as multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, modules or indirect coupling or communication connection of modules, which can be electrical or other forms.

[0100] The modules described as separate components may or may not be physically separate, and the components shown as modules may or may not be physical modules, that is, they may be located in one place or distributed across multiple modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the present embodiment.

[0101] In addition, the functional modules in the various embodiments of the present application may be integrated into a processing module, or each module may exist physically separately, or two or more modules may be integrated into a single module. The above-mentioned integrated modules may be implemented in the form of hardware or software functional modules.

[0102] If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server or network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk, etc., various media that can store program code.

[0103] The above is only a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A method for controlling water supply temperature, characterized in that: include: Collecting the supply water temperature and return water temperature of the temperature control system at predetermined time intervals, wherein the predetermined time interval is the cycle time required for water in the pipe of the temperature control system to flow one circle; Calculating a characteristic value of the temperature control system at a current moment based on the supply water temperature, the return water temperature, and a preset indoor temperature; updating an average characteristic value of the temperature control system according to the characteristic value; comparing the characteristic value with the average characteristic value to control the water supply temperature; Calculating the characteristic value of the temperature control system at the current moment based on the supply water temperature, the return water temperature, and the preset indoor temperature includes: Subtracting the square value of the return water temperature from the square value of the preset indoor temperature to obtain a first temperature square difference; Subtracting the square value of the water supply temperature from the square value of the preset indoor temperature to obtain a second temperature square difference; dividing the first temperature square difference by the second temperature square difference to obtain a first ratio; Dividing the square value of the return water temperature by the square value of the supply water temperature to obtain a second ratio; The first ratio is divided by the second ratio to obtain the characteristic value.

2. The method according to claim 1, characterized in that Comparing the characteristic value with the average characteristic value and controlling the water supply temperature includes: If the characteristic value is less than the average characteristic value, controlling to increase the water supply temperature; If the characteristic value is greater than the average characteristic value, controlling to lower the water supply temperature; If the characteristic value is equal to the average characteristic value, the supply water temperature is kept unchanged.

3. The method according to claim 2, characterized in that Controlling and increasing the water supply temperature, including: Obtaining a characteristic value of the temperature control system used to characterize the energy-saving status of the system; wherein obtaining the characteristic value of the temperature control system used to characterize the energy-saving status of the system includes: obtaining a function expression of the supply water temperature and a function expression of the return water temperature; integrating the function expression of the supply water temperature and the predetermined time interval to obtain an integral value of the supply water temperature of the temperature control system; integrating the function expression of the return water temperature and the predetermined time interval to obtain an integral value of the return water temperature of the temperature control system; performing a ratio operation on the integral value of the supply water temperature and the integral value of the return water temperature to obtain the characteristic value used to characterize the energy-saving status of the system; determining whether the characteristic value used to characterize the energy-saving status of the system is less than the characteristic value; If the characteristic value used to characterize the energy-saving status of the system is less than the characteristic value, adjusting the water supply temperature by taking the first temperature as the temperature increase amplitude; If the characteristic value used to characterize the energy-saving status of the system is greater than the characteristic value, adjusting the water supply temperature by taking the second temperature as the temperature increase amplitude; If the characteristic value for characterizing the energy-saving status of the system is equal to the characteristic value, adjusting the water supply temperature by using the third temperature as the temperature increase amplitude; Wherein, the first temperature The second temperature The third temperature.

4. The method according to claim 2, characterized in that Controlling to lower the water supply temperature includes: Obtaining a characteristic value of the temperature control system used to characterize the energy-saving status of the system; wherein obtaining the characteristic value of the temperature control system used to characterize the energy-saving status of the system includes: obtaining a function expression of the supply water temperature and a function expression of the return water temperature; integrating the function expression of the supply water temperature and the predetermined time interval to obtain an integral value of the supply water temperature of the temperature control system; integrating the function expression of the return water temperature and the predetermined time interval to obtain an integral value of the return water temperature of the temperature control system; performing a ratio operation on the integral value of the supply water temperature and the integral value of the return water temperature to obtain the characteristic value used to characterize the energy-saving status of the system; determining whether the characteristic value used to characterize the energy-saving status of the system is less than the characteristic value; If the characteristic value used to characterize the energy-saving status of the system is less than the characteristic value, adjusting the water supply temperature by using the fourth temperature as the temperature reduction amplitude; If the characteristic value used to characterize the energy-saving status of the system is greater than the characteristic value, adjusting the water supply temperature by taking the fifth temperature as the temperature reduction amplitude; If the characteristic value for characterizing the energy-saving status of the system is equal to the characteristic value, adjusting the water supply temperature by using the sixth temperature as the temperature reduction amplitude; Wherein, the fourth temperature The fifth temperature The sixth temperature.

5. The method according to claim 3 or 4, characterized in that Performing a ratio operation on the integral value of the supply water temperature and the integral value of the return water temperature to obtain the characteristic value for characterizing the energy-saving status of the system includes: subtracting the integral value of the supply water temperature from the integral value of the return water temperature to obtain a difference; dividing the difference by the integrated value of the water supply temperature to obtain a third ratio; When the integral value of the water supply temperature is greater than 0, the third ratio is used as the characteristic value for characterizing the energy-saving status of the system; or, when the integral value of the water supply temperature is less than 0, the difference between 1 and the third ratio is used as the characteristic value for characterizing the energy-saving status of the system.

6. The method according to claim 1, characterized in that The method further comprises: Calculating a topological equivalent value in the temperature control system for characterizing a thermal response characteristic of a building according to the supply water temperature, the return water temperature, and the predetermined time interval; The heat demand of the building is evaluated according to the topological equivalent value used to characterize the thermal response characteristics of the building to determine the energy-saving status of the building.

7. A water supply temperature control device, characterized in that: include: a collection module for collecting the supply water temperature and the return water temperature of the temperature control system at a predetermined time interval, wherein the predetermined time interval is the cycle time required for water in the pipe of the temperature control system to flow one circle; a calculation module, configured to calculate a characteristic value of the temperature control system at a current moment based on the supply water temperature, the return water temperature, and a preset indoor temperature; an updating module, configured to update an average characteristic value of the temperature control system according to the characteristic value; a control module, configured to compare the characteristic value with the average characteristic value and control the water supply temperature; Wherein, the calculation module includes: a first calculating unit, configured to subtract the square value of the return water temperature from the square value of the preset indoor temperature to obtain a first temperature square difference; a second calculating unit, configured to subtract the square value of the water supply temperature from the square value of the preset indoor temperature to obtain a second temperature square difference; a third calculating unit, configured to divide the first temperature square difference by the second temperature square difference to obtain a first ratio; a fourth calculation unit, configured to divide the square value of the return water temperature by the square value of the supply water temperature to obtain a second ratio; A fifth calculation unit is configured to divide the first ratio by the second ratio to obtain the characteristic value.

8. An electronic device, characterized in that: include: processor; A memory for storing processor-executable instructions; wherein the processor is configured to perform the steps of the method according to any one of claims 1 to 6.

9. A storage medium, characterized in that: The storage medium includes a stored program, wherein when the program is executed, the device where the storage medium is located is controlled to execute the steps of the method according to any one of claims 1 to 6.

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