Solar energy and geothermal energy coupled power generation, heat supply and refrigeration system and control method thereof

Abstract

The invention relates to the technical field of energy storage, and discloses a solar energy and geothermal energy coupled power generation, heating and refrigeration control method which comprises the following steps: S1, numbering user terminals through a user numbering module; s2, setting a user data acquisition module; s3, obtaining the time when the indoor temperature of each user drops to the preset basic unit temperature through an analysis module; s4, the heat preservation coefficient of each user terminal is obtained through an analysis module; s5, the environment temperature, the real-time indoor temperature of each user and the user state are collected; s6, rating geothermal energy heating through an analysis module, and switching a solar energy and geothermal energy coupling power generation heating and cooling mode according to a rating result; the heat required by each user in unit time can be more accurately calculated through the heat preservation coefficient of each user terminal, so that the solar energy and geothermal energy coupling power generation, heat supply and refrigeration mode can be more accurately judged; therefore, energy is saved while the heating requirements of all users in the target area are met.

Description

Technical Field

[0001] The present invention relates to the field of energy storage technology, and in particular to a solar energy and geothermal energy coupled power generation, heating and refrigeration system and a control method thereof. Background Art

[0002] Geothermal energy comes from the heat inside the earth and is a clean, renewable energy source. Using geothermal energy for heating and cooling not only does not consume fossil fuels, but also does not produce greenhouse gases or other harmful substances, making it environmentally friendly. At the same time, geothermal energy has a high thermal energy density and stability, allowing its heating and cooling systems to operate efficiently.

[0003] In the north, the temperature is low in winter and lasts long, so the demand for heating in the north is extremely high. Geothermal energy is currently widely used for heating in the north. However, as the urban population gradually increases, the demand for heating in cities gradually increases. During the peak heating period, geothermal heating alone may result in insufficient heating and cannot meet the heating needs of urban residents. As living standards improve, residents' requirements for ambient temperature gradually increase. Heating in the north is usually collective heating, and the temperature is difficult to adjust. Due to the different sizes, room types and decoration materials of each house, the thermal insulation performance of each house is different, so usually too much heat is supplied to meet the heating needs of all users. During the heating process, some geothermal energy will be wasted. Summary of the invention

[0004] The purpose of the present invention is to provide a solar energy and geothermal energy coupling power generation heating and refrigeration system and a control method thereof to solve the following technical problems:

[0005] How to adjust the heating and cooling mode according to the real-time needs of users in the target area to meet the heating needs of users in the target area while saving energy.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A solar energy and geothermal energy coupling power generation heating and cooling control method, the control method comprising the following steps:

[0008] S1: N user terminals in the target area are numbered in sequence through the user numbering module, denoted as n;

[0009] S2: Setting a user data collection module in each user terminal;

[0010] S3: Obtaining the time for the indoor temperature of each user to drop to a preset basic unit temperature through each user data acquisition module and the environmental data acquisition module according to a preset acquisition rule;

[0011] S4: Analyzing the time for the indoor temperature of each user of each user terminal to drop by a preset basic unit temperature through an analysis module to obtain a thermal insulation coefficient of each user terminal;

[0012] S5: Collect the ambient temperature through the ambient data collection module; collect the real-time indoor temperature and user status of each user through each user data collection module;

[0013] S6: Analyze the ambient temperature, the real-time indoor temperature of each user terminal, the user status and the insulation coefficient through the analysis module to obtain a judgment index, and rate the geothermal heating according to the judgment index, and judge the solar energy and geothermal energy coupling power generation heating and cooling mode according to the judgment index.

[0014] As a further solution of the present invention: in step S3, the preset collection rule is:

[0015] S10: The user terminal of number n automatically turns on heating, collects the real-time indoor temperature of the user of number n through the user data collection module of number n, and obtains the real-time ambient temperature through the ambient data collection module;

[0016] S20: When the real-time indoor temperature of user number n and the real-time ambient temperature have a preset temperature difference, the terminal of user number n automatically turns off the heating, and obtains the time for the indoor temperature of user number n to drop by a preset basic unit temperature.

[0017] As a further solution of the present invention: in step S4, by formula:

[0018]

[0019] Calculate the insulation coefficient B of user number n n ;

[0020] Among them, t n t0 is the time for the indoor temperature of user number n to drop by a preset basic unit temperature; t1 is the time for the indoor temperature of a preset room type to drop by a preset basic unit temperature.

[0021] As a further solution of the present invention: by formula:

[0022]

[0023] Calculate the real-time heat dissipation Q of user number n ns ;

[0024] Among them, T evm is the ambient temperature; T n1 is the real-time indoor temperature of user number n; W0 is the preset temperature difference; Q0 is the basic heat loss of the preset room type per unit time.

[0025] As a further solution of the present invention: by formula:

[0026]

[0027] Calculate the heat Q required per unit time for user terminal number n nx ;

[0028] Among them, δ ns is the user status coefficient of user terminal numbered n; Q1 is the basic required heat per unit time; T0 is the preset indoor temperature.

[0029] As a further solution of the present invention: the judgment index is:

[0030]

[0031] Wherein, f(X) is the first judgment function, when X>0, f(X)=2; when X=0, f(X)=1; when X<0, f(X)=0; Q DR Q is the total heat provided to the target area per unit time by geothermal heating; XH The heat lost during the transmission of geothermal energy to all user terminals in the target area per unit time.

[0032] As a further solution of the present invention: the rating process of geothermal heating according to the judgment index is as follows:

[0033] When P = 0, geothermal heating is level three;

[0034] When P = 1, geothermal heating is level 2;

[0035] When P=2, geothermal heating is level one.

[0036] A solar energy and geothermal energy coupling power generation, heating and refrigeration system, comprising:

[0037] Geothermal heat pump modules for extracting geothermal energy from the ground;

[0038] A transmission module, used for transmitting geothermal energy to various user terminals;

[0039] A user numbering module is used to number N user terminals in the target area in sequence, denoted as n;

[0040] A user data collection module, corresponding to a user terminal one by one, is used to collect real-time information data of the user terminal; the real-time information data includes real-time indoor temperature and user status;

[0041] An environmental data acquisition module, used to collect environmental data; the environmental data includes environmental temperature;

[0042] The analysis module is used to obtain the time for the indoor temperature of each user to drop by a preset basic unit temperature through each user data collection module and the environmental data collection module according to the preset collection rules, analyze the time for the indoor temperature of each user of each user terminal to drop by the preset basic unit temperature, and obtain the insulation coefficient of each user terminal; it is also used to analyze the ambient temperature, the real-time indoor temperature of each user terminal, the user status and the insulation coefficient to obtain the judgment index, and rate the geothermal heating according to the judgment index, and judge the solar energy and geothermal energy coupling power generation heating and cooling mode according to the judgment index;

[0043] Solar modules, which convert solar energy into electrical energy;

[0044] Geothermal power generation module, used to convert geothermal energy into electrical energy

[0045] Energy storage module, used to store the electric energy converted by solar modules and geothermal power generation modules.

[0046] Beneficial effects of the present invention:

[0047] The present invention firstly numbers N user terminals in the target area in sequence through a user numbering module, which is recorded as n; then sets a user data acquisition module in each user terminal; then obtains the time for the indoor temperature of each user to drop by a preset basic unit temperature according to a preset acquisition rule through each user data acquisition module and an environmental data acquisition module; then analyzes the time for the indoor temperature of each user of each user terminal to drop by a preset basic unit temperature through an analysis module to obtain a thermal insulation coefficient of each user terminal; then collects the ambient temperature through the environmental data acquisition module; collects the real-time indoor temperature and user status of each user through each user data acquisition module; finally, obtains a judgment index by analyzing the ambient temperature, the real-time indoor temperature of each user terminal, the user status and the thermal insulation coefficient, and rates geothermal heating according to the judgment index, and switches the solar energy and geothermal energy coupled power generation heating and cooling mode according to the rating result; the heat required per unit time of each user can be more accurately calculated through the thermal insulation coefficient of each user terminal, so as to more accurately judge the solar energy and geothermal energy coupled power generation heating and cooling mode; thereby meeting the heating needs of each user in the target area while saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The present invention will be further described below in conjunction with the accompanying drawings.

[0049] Figure 1 A method flow chart of an embodiment of the present invention;

[0050] Figure 2 A system module framework diagram of an embodiment of the present invention. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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 of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] See also Figure 1 As shown, in one embodiment, a method for controlling solar energy and geothermal energy coupled power generation, heating and cooling is provided, comprising the following steps:

[0053] S1: N user terminals in the target area are numbered in sequence through the user numbering module, denoted as n;

[0054] S2: Setting a user data collection module in each user terminal;

[0055] S3: Obtaining the time for the indoor temperature of each user to drop to a preset basic unit temperature through each user data acquisition module and the environmental data acquisition module according to a preset acquisition rule;

[0056] S4: Analyzing the time for the indoor temperature of each user of each user terminal to drop by a preset basic unit temperature through an analysis module to obtain a thermal insulation coefficient of each user terminal;

[0057] S5: Collect the ambient temperature through the ambient data collection module; collect the real-time indoor temperature and user status of each user through each user data collection module;

[0058] S6: Analyze the ambient temperature, the real-time indoor temperature of each user terminal, the user status and the insulation coefficient through the analysis module to obtain a judgment index, and rate the geothermal heating according to the judgment index, and switch the solar energy and geothermal energy coupling power generation heating and cooling mode according to the rating result;

[0059] Through the above technical scheme, this embodiment firstly numbers N user terminals in the target area in sequence through the user numbering module, which is recorded as n; then sets a user data collection module in each user terminal; then obtains the time for the indoor temperature of each user to drop by a preset basic unit temperature through each user data collection module and the environmental data collection module according to the preset collection rule; then analyzes the time for the indoor temperature of each user of each user terminal to drop by a preset basic unit temperature through the analysis module to obtain the insulation coefficient of each user terminal; then collects the ambient temperature through the environmental data collection module; collects the real-time indoor temperature and user status of each user through each user data collection module; finally, obtains the judgment index by analyzing the ambient temperature, the real-time indoor temperature of each user terminal, the user status and the insulation coefficient, and rates the geothermal heating according to the judgment index, and judges the solar energy and geothermal energy coupling power generation heating and cooling mode according to the judgment index; the heat required per unit time of each user can be more accurately calculated through the insulation coefficient of each user terminal, so as to more accurately judge the solar energy and geothermal energy coupling power generation heating and cooling mode; thereby meeting the heating needs of each user in the target area while saving energy.

[0060] As an implementation mode of the present invention, in step S3, the preset collection rule is:

[0061] S10: The user terminal of number n automatically turns on heating, collects the real-time indoor temperature of the user of number n through the user data collection module of number n, and obtains the real-time ambient temperature through the ambient data collection module;

[0062] S20: When the real-time indoor temperature of user number n and the real-time ambient temperature have a preset temperature difference, the terminal of user number n automatically turns off the heating, and obtains the time when the indoor temperature of user number n drops to a preset basic unit temperature;

[0063] Through the above technical scheme, the preset collection rules in this embodiment firstly, the user terminal numbered n automatically turns on the heating, collects the real-time indoor temperature of the user numbered n through the user data collection module numbered n, and obtains the real-time ambient temperature through the environmental data collection module; when the real-time indoor temperature of the user numbered n and the real-time ambient temperature are the preset temperature difference, the user terminal numbered n automatically turns off the heating, and obtains the time for the indoor temperature of the user numbered n to drop by the preset basic unit temperature; this is convenient for the subsequent evaluation of the thermal insulation performance of the user numbered n.

[0064] As an implementation mode of the present invention, in step S4, by formula:

[0065]

[0066] Calculate the insulation coefficient B of user number n n ;

[0067] Among them, t n The time for the indoor temperature of user number n to drop to the preset basic unit temperature; t0 is the time for the indoor temperature of the preset room type to drop to the preset basic unit temperature;

[0068] Through the above technical solution, this embodiment t n -t0 is the difference between the time when the indoor temperature of user number n drops to the preset basic unit temperature and the time when the indoor temperature of the preset room type drops to the preset basic unit temperature; when t n -t0>0, it means that the time for the indoor temperature of user number n to drop by the preset basic unit temperature is longer than the time for the indoor temperature of the preset room type to drop by the preset basic unit temperature, which means that the thermal insulation performance of user number n is better than that of the preset house. The difference between the time for the indoor temperature of user number n to drop by the preset basic unit temperature and the time for the indoor temperature of the preset room type to drop by the preset basic unit temperature is t n -The larger the t0 is, the better the thermal insulation performance of user number n is. The thermal insulation coefficient B of user number n is n The larger the n When -t0<0, it means that the time for the indoor temperature of user number n to drop by the preset basic unit temperature is less than the time for the indoor temperature of the preset room type to drop by the preset basic unit temperature, which means that the thermal insulation performance of user number n is worse than that of the preset house. The difference between the time for the indoor temperature of user number n to drop by the preset basic unit temperature and the time for the indoor temperature of the preset room type to drop by the preset basic unit temperature is t n The larger the absolute value of -t0 is, the worse the thermal insulation performance of user number n is. The thermal insulation coefficient B of user number n is n The smaller it is; the thermal insulation performance of each user can be more accurately evaluated through the thermal insulation coefficient;

[0069] It should be noted that the method for obtaining the time t0 of the indoor temperature of the preset room type dropping to the preset basic unit temperature is similar to the method for obtaining the time t0 of the indoor temperature of the user number n dropping to the preset basic unit temperature n The same is not described in detail here.

[0070] As an implementation mode of the present invention, by formula:

[0071]

[0072] Calculate the real-time heat dissipation Q of user number n ns ;

[0073] Among them, T evm is the ambient temperature; T n1 is the real-time indoor temperature of user number n; W0 is the preset temperature difference; Q0 is the basic heat loss of the preset room type per unit time;

[0074] Through the above technical solution, the insulation coefficient B of the user number n in this embodiment n The larger the value, the better the thermal insulation performance of user number n, so the less heat is lost per unit time; the thermal insulation coefficient B of user number n n The smaller it is, the poorer the thermal insulation performance of user number n is, so the more heat is lost per unit time; |T evm -T n1 | is the absolute value of the temperature difference between the ambient temperature and the real-time indoor temperature of user number n; |T evm -T n1 |-W0 is the difference between the absolute value of the temperature difference between the ambient temperature and the real-time indoor temperature of user number n and the preset temperature difference; when |T evm -T n1 |-W0>0, it means that the absolute value of the temperature difference between the ambient temperature and the real-time indoor temperature of user number n is greater than the preset temperature difference. Therefore, the absolute value of the temperature difference between the ambient temperature and the real-time indoor temperature of user number n is equal to the difference between the preset temperature difference and the preset temperature difference|T evm -T n1 |-The larger W0 is, the more heat Q is lost per unit time. ns More; when |T evm -T n1 |-W0<0, it means that the absolute value of the temperature difference between the ambient temperature and the real-time indoor temperature of user number n is less than the preset temperature difference. Therefore, the absolute value of the temperature difference between the ambient temperature and the real-time indoor temperature of user number n is equal to the difference between the preset temperature difference and the preset temperature difference|T evm -T n1 |-The larger the absolute value of W0, the more heat Q is lost per unit time. ns The less;

[0075] It should be noted that the preset temperature difference W0 and the basic heat loss Q0 of the preset room type per unit time are preset values, which are obtained based on experience and will not be described in detail here.

[0076] As an implementation mode of the present invention, by formula:

[0077]

[0078] Calculate the heat Q required per unit time for user terminal number n nx ;

[0079] Among them, δ ns is the user status coefficient of user terminal numbered n; Q1 is the basic required heat per unit time; T0 is the preset indoor temperature;

[0080] Through the above technical solution, this embodiment T0-T n1is the temperature difference between the preset indoor temperature and the real-time indoor temperature of user number n; (T0-T n1 )Q1 is the heat required to be supplied per unit time for user number n; when T0-T n1 >0, it means that the preset indoor temperature is higher than the real-time indoor temperature of user number n, so in addition to maintaining the current indoor temperature, more heat needs to be supplied; and the temperature difference between the preset indoor temperature and the real-time indoor temperature of user number n is T0-T n1 The larger the value, the more heat the user number n needs to supply; when T0-T n1 When <0, it means that the preset indoor temperature is lower than the real-time indoor temperature of user number n, so less heat needs to be provided to lower the real-time indoor temperature; is the amount of heat that needs to be supplied per unit time for user number n in the current user state; the user state includes off, dormant and on; when the user terminal number n is on, δ ns =1; the heat required per unit time of user terminal number n is Q nx for When user terminal number n is in the closed state, δ ns = 0; the heat required per unit time of user terminal number n is Q nx is 0; when the user terminal number n is in sleep state, δ ns ∈(0, 1); The specific state coefficient value is set by the user and will not be described in detail here; The unit time required heat Q of the user terminal numbered n nx for

[0081] It should be noted that the basic required heat per unit time Q1 and the preset indoor temperature T0 are preset values, which are obtained based on experience and will not be described in detail here.

[0082] As an implementation mode of the present invention, the judgment index is:

[0083]

[0084] Wherein, f(X) is the first judgment function, when X>0, f(X)=2; when X=0, f(X)=1; when X<0, f(X)=0; Q DR Q is the total heat provided to the target area per unit time by geothermal heating; XH The heat lost in the process of transmitting geothermal energy to all user terminals in the target area per unit time;

[0085] As an implementation mode of the present invention, the rating process of geothermal heating according to the judgment index is as follows:

[0086] When P = 0, geothermal heating is level three;

[0087] When P = 1, geothermal heating is level 2;

[0088] When P = 2, geothermal heating is level one;

[0089] Through the above technical solution, this embodiment Q DR -Q XH It is the difference between the total heat provided to the target area by geothermal heating per unit time and the heat lost in the process of being transmitted to all user terminals in the target area by geothermal heating per unit time, that is, the total effective heat that can actually be provided to each user in the target area by geothermal heating per unit time; The heat required per unit time for all user terminals in the target area; is the difference between the heat required per unit time of all user terminals in the target area and the total effective heat that can actually be provided to each user in the target area by geothermal heating per unit time; in the formula f[Q nx -(Q DR -Q XH )], the X in the first judgment function f(X) refers to when When P = 2, it means that the heat required per unit time of all user terminals in the target area is greater than the total effective heat that can actually be provided to each user in the target area by geothermal heating per unit time; geothermal heating is level one; the energy storage module releases electric energy to provide heat to each user terminal; when When P = 1, it means that the heat required per unit time of all user terminals in the target area is equal to the total effective heat that can be provided to each user in the target area per unit time by geothermal heating, and geothermal heating is level 2; only geothermal heating is used; when When P=0, it means that the heat required per unit time of all user terminals in the target area is less than the total effective heat that can actually be provided to each user in the target area per unit time by geothermal heating, and the geothermal heating is level one; only geothermal heating is used; and the geothermal power generation module is started to convert the excess geothermal energy into electrical energy and store it in the energy storage module;

[0090] It should be noted that the total amount of heat Q provided to the target area per unit time by geothermal heating is DR The heat loss Q during the transmission of geothermal energy to all user terminals in the target area per unit time XH It is a preset value obtained based on experience and will not be described in detail here.

[0091] See also Figure 2 As shown, a solar energy and geothermal energy coupling power generation, heating and cooling system comprises:

[0092] Geothermal heat pump modules for extracting geothermal energy from the ground;

[0093] A transmission module, used for transmitting geothermal energy to various user terminals;

[0094] A user numbering module is used to number N user terminals in the target area in sequence, denoted as n;

[0095] A user data collection module, corresponding to a user terminal one by one, is used to collect real-time information data of the user terminal; the real-time information data includes real-time indoor temperature and user status;

[0096] An environmental data acquisition module, used to collect environmental data; the environmental data includes environmental temperature;

[0097] The analysis module is used to obtain the time for the indoor temperature of each user to drop by a preset basic unit temperature through each user data collection module and the environmental data collection module according to the preset collection rules, analyze the time for the indoor temperature of each user of each user terminal to drop by the preset basic unit temperature, and obtain the insulation coefficient of each user terminal; it is also used to analyze the ambient temperature, the real-time indoor temperature of each user terminal, the user status and the insulation coefficient to obtain the judgment index, and rate the geothermal heating according to the judgment index, and judge the solar energy and geothermal energy coupling power generation heating and cooling mode according to the judgment index;

[0098] Solar modules, which convert solar energy into electrical energy;

[0099] Geothermal power generation module, used to convert geothermal energy into electrical energy

[0100] Energy storage module, used to store the electric energy converted by solar modules and geothermal power generation modules.

[0101] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A solar energy and geothermal energy coupling power generation heating and cooling control method, characterized in that: The control method comprises the following steps: S1: N user terminals in the target area are numbered in sequence through the user numbering module, denoted as n; S2: Setting a user data collection module in each user terminal; S3: Obtaining the time for the indoor temperature of each user to drop to a preset basic unit temperature through each user data acquisition module and the environmental data acquisition module according to a preset acquisition rule; S4: Analyzing the time for the indoor temperature of each user of each user terminal to drop by a preset basic unit temperature through an analysis module to obtain a thermal insulation coefficient of each user terminal; S5: Collect the ambient temperature through the ambient data collection module; collect the real-time indoor temperature and user status of each user through each user data collection module; S6: Analyze the ambient temperature, the real-time indoor temperature of each user terminal, the user status and the insulation coefficient through the analysis module to obtain a judgment index, and rate the geothermal heating according to the judgment index, and judge the solar energy and geothermal energy coupling power generation heating and cooling mode according to the judgment index.

2. A solar energy and geothermal energy coupling power generation heating and cooling control method according to claim 1, characterized in that: In step S3, the preset collection rule is: S10: The user terminal of number n automatically turns on heating, collects the real-time indoor temperature of the user of number n through the user data collection module of number n, and obtains the real-time ambient temperature through the ambient data collection module; S20: When the real-time indoor temperature of user number n and the real-time ambient temperature have a preset temperature difference, the terminal of user number n automatically turns off the heating, and obtains the time for the indoor temperature of user number n to drop by a preset basic unit temperature.

3. A solar energy and geothermal energy coupling power generation heating and cooling control method according to claim 2, characterized in that: In step S4, by formula: Calculate the insulation coefficient B of user number n n ; Among them, t n t0 is the time for the indoor temperature of user number n to drop by a preset basic unit temperature; t1 is the time for the indoor temperature of a preset room type to drop by a preset basic unit temperature.

4. A solar energy and geothermal energy coupling power generation heating and cooling control method according to claim 3, characterized in that: By formula: Calculate the real-time heat dissipation Q of user number n ns ; Among them, T evm is the ambient temperature; T n1 is the real-time indoor temperature of user number n; W0 is the preset temperature difference; Q0 is the basic heat loss of the preset room type per unit time.

5. A solar energy and geothermal energy coupling power generation heating and cooling control method according to claim 4, characterized in that: By formula: Calculate the heat Q required per unit time for user terminal number n nx ; Among them, δ ns is the user status coefficient of user terminal numbered n; Q1 is the basic required heat per unit time; T0 is the preset indoor temperature.

6. A solar energy and geothermal energy coupling power generation heating and cooling control method according to claim 5, characterized in that: The judgment index is: Wherein, f(X) is the first judgment function, when X>0, f(X)=2; when X=0, f(X)=1; when X<0, f(X)=0; Q DR Q is the total heat provided to the target area per unit time by geothermal heating; XH The heat lost during the transmission of geothermal energy to all user terminals in the target area per unit time.

7. A solar energy and geothermal energy coupling power generation, heating and cooling control method according to claim 6, characterized in that: The rating process for rating geothermal heating according to the judgment index is: When P = 0, geothermal heating is level three; When P = 1, geothermal heating is level 2; When P=2, geothermal heating is level one.

8. A solar energy and geothermal energy coupled power generation heating and cooling system, applicable to a solar energy and geothermal energy coupled power generation heating and cooling control method as claimed in any one of claims 1 to 7, characterized in that: include: Geothermal heat pump modules for extracting geothermal energy from the ground; A transmission module, used for transmitting geothermal energy to various user terminals; A user numbering module is used to number N user terminals in the target area in sequence, denoted as n; A user data collection module, corresponding to a user terminal one by one, is used to collect real-time information data of the user terminal; the real-time information data includes real-time indoor temperature and user status; An environmental data acquisition module, used to collect environmental data; the environmental data includes environmental temperature; The analysis module is used to obtain the time for the indoor temperature of each user to drop by a preset basic unit temperature through each user data collection module and the environmental data collection module according to the preset collection rules, analyze the time for the indoor temperature of each user of each user terminal to drop by the preset basic unit temperature, and obtain the insulation coefficient of each user terminal; it is also used to analyze the ambient temperature, the real-time indoor temperature of each user terminal, the user status and the insulation coefficient to obtain the judgment index, and rate the geothermal heating according to the judgment index, and judge the solar energy and geothermal energy coupling power generation heating and cooling mode according to the judgment index; Solar modules, which convert solar energy into electrical energy; Geothermal power generation module, used to convert geothermal energy into electrical energy Energy storage module, used to store the electric energy converted by solar modules and geothermal power generation modules.

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