Three-dimensional regulation and control intelligent temperature control sensing system for central air conditioner

Abstract

The invention discloses a three-dimensional regulation and control intelligent temperature control sensing system for a central air conditioner, and relates to the technical field of central air conditioners, a distributed temperature monitoring module is used for detecting the temperature of each room and the outdoor temperature, and meanwhile, the activity of a human body heat source is monitored; therefore, cold air or hot air resources of different rooms are flexibly allocated through the fresh air system, air with the appropriate temperature in an empty room away from people is transferred into another room needing temperature adjustment through the fresh air pipeline, and waste cold air or hot air is recycled. The refrigerating and heating capacity of the air conditioner is supplemented, so that the refrigerating or heating effect of the air conditioner is improved, power loss is reduced, and energy conservation and environment protection are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field related to central air conditioners, and in particular to an intelligent temperature control sensor system for a central air conditioner with three-dimensional control. Background Art

[0002] In existing central air-conditioning systems, the traditional layout usually includes two parts: an indoor unit and an outdoor unit. The indoor unit is responsible for delivering processed air directly into the room, while the outdoor unit is responsible for heat exchange and the cooling and heating process. However, this layout has some limitations. First, the installation of the indoor unit requires space in the room, and its appearance and noise may have a certain impact on the indoor environment. Second, the connecting pipes and cables between the indoor and outdoor units may also increase the complexity of installation and maintenance.

[0003] In addition, traditional central air-conditioning temperature control systems rely solely on compressor cooling or heating to regulate temperature, which consumes a lot of electricity and is unable to utilize the temperature difference between different rooms to efficiently allocate resources for cold and hot air. Summary of the invention

[0004] The purpose of the present invention is to provide an intelligent temperature control sensor system for a central air conditioner with three-dimensional control, so as to solve the problem that the traditional central air conditioning temperature control system proposed in the above background only relies on compressor cooling or heating to control the temperature, consumes a lot of electricity, and cannot utilize the temperature difference between different rooms to efficiently allocate resources for cold and hot air.

[0005] To achieve the above object, the present invention provides the following technical solutions: an intelligent temperature control sensor system for a central air conditioner with three-dimensional control, the system comprising: an air conditioner host module, a fresh air module, an intercommunication adjustment module, an independent temperature control module, a distributed temperature monitoring module and an intelligent control module;

[0006] The air conditioning host module includes an outdoor host, and the outdoor host includes a compressor, a condenser and a heat exchange fan to play a cooling role;

[0007] The fresh air module includes an indoor vent and a fresh air duct. Each room is provided with an indoor vent, and the indoor vent is connected to the outdoor vent on the outdoor host through the fresh air duct.

[0008] The intercommunication regulation module includes an electrically controlled multi-way valve, which is responsible for regulating the connection and closing of the fresh air duct of each room with the outdoor vent, as well as the mutual connection and closing between the fresh air ducts connecting different rooms. The electrically controlled multi-way valve controls the opening and closing of the valve by receiving instructions from the intelligent regulation module, thereby regulating the connection state of the fresh air duct;

[0009] The independent temperature control module includes a temperature controller, which includes an evaporator and an air supply fan. The temperature controller is installed on the outdoor part of the fresh air duct. Each fresh air duct is provided with a temperature controller, and the temperature controller is responsible for regulating the temperature of the air flowing through the fresh air duct through the evaporator.

[0010] The distributed temperature monitoring module includes an outdoor temperature sensor and an indoor temperature sensor. The outdoor temperature sensor is installed on the outdoor host to monitor the indoor air temperature. The indoor temperature sensor is installed on the indoor vent to monitor the temperature in each room. The indoor temperature sensor uses laser temperature measurement to monitor the range of human activities.

[0011] The intelligent control module determines the activity range of human heat sources based on the monitoring data of multiple groups of outdoor temperature sensors and indoor temperature sensors in the distributed temperature monitoring module and the infrared monitoring results of the indoor temperature sensors, and transports the cold air in other rooms to the room where the human body mainly moves through the fresh air duct.

[0012] Furthermore, the electrically-controlled multi-way valve regulates the circulation of air in three rooms through three groups of fresh air ducts and indoor vents, wherein a first vent is installed in room A, and the first vent is connected to the outdoor vent through a first fresh air duct and an electrically-controlled multi-way valve, a second vent is installed in room B, and the second vent is connected to the outdoor vent through a second fresh air duct and an electrically-controlled multi-way valve, and a third vent is installed in room C, and the third vent is connected to the outdoor vent through a third fresh air duct and an electrically-controlled multi-way valve.

[0013] Furthermore, the electrically controlled multi-way valve is provided with four channels inside, three of which correspond to three fresh air ducts, and the other channel corresponds to an outdoor vent.

[0014] Furthermore, a first temperature controller is installed on the first fresh air duct, a second temperature controller is installed on the second fresh air duct, and a third temperature controller is installed on the third fresh air duct.

[0015] Furthermore, an internal circulation pipe is arranged between the temperature controller and the indoor ventilation port, and the temperature controller and the indoor ventilation port are connected through the internal circulation pipe to form an internal circulation. There are three internal circulation pipes, a first circulation pipe is arranged between the first temperature controller and the first ventilation port, a second circulation pipe is arranged between the second temperature controller and the second ventilation port, and a third circulation pipe is arranged between the third temperature controller and the third ventilation port.

[0016] Furthermore, a first indoor temperature sensor is installed at the first ventilation opening, a second indoor temperature sensor is installed at the second ventilation opening, and a third indoor temperature sensor is installed at the third ventilation opening.

[0017] Furthermore, the first indoor temperature sensor, the second indoor temperature sensor and the third indoor temperature sensor all use scanning laser temperature measuring probes to measure the temperature distribution at different positions in the room and detect human body heat sources.

[0018] Furthermore, the process of detecting and analyzing the heat source of the human body by the indoor temperature sensor includes the following steps:

[0019] S801. Laser scanning: The laser beam moves in the room at a certain speed and path to scan each point. The scanning path S(t) of the laser beam is expressed as:

[0020] S(t)={(x i (t), y i (t), z i (t))∣i=1, 2,...,N};

[0021] Among them, (x i (t), y i (t), z i (t)) represents the three-dimensional coordinates of the i-th point scanned by the laser beam at time t;

[0022] S802. Infrared radiation measurement: When the laser beam irradiates the human body, it will receive the infrared radiation emitted by the human body. The intensity of infrared radiation is related to the temperature of the object. Therefore, the temperature of the object can be calculated by measuring the intensity of infrared radiation. The measurement of infrared radiation is expressed as:

[0023] I(x,y,z,t)=f(T(x,y,z,t));

[0024] Where I(x, y, z, t) represents the infrared radiation intensity measured at time t and position (x, y, z), T(x, y, z, t) represents the temperature at that position, and f is the functional relationship between the infrared radiation intensity and the temperature.

[0025] S803. Temperature calculation: Based on the intensity of infrared radiation after filtering, the temperature of the object can be calculated. The temperature calculation formula is:

[0026] T′(x, y, z, t)=g(I′(x, y, z, t));

[0027] Where T′(x, y, z, t) represents the temperature calculated at the time coordinate (x, y, z) at time t, and g is the inverse function relationship between infrared radiation intensity and temperature;

[0028] S804. Human body heat source identification: In the calculated temperature field, the area with a temperature higher than the set threshold is identified as the human body heat source. The human body is located by setting the temperature threshold. The human body heat source identification is expressed as:

[0029] H(t)={(x, y, z)∣T1>T′(x, y, z, t)>T2};

[0030] Where H(t) represents the human body heat source area identified at time t, T1 and T2 are the set temperature thresholds. According to the average human body temperature, T1 is set to 37°C and T2 is set to 36.3°C.

[0031] Then, an isothermal contour model is established according to the coordinates (x, y, z) of the detection points that are consistent with the human body temperature, and is fitted with the human body contour model to determine the coordinates of the human body heat source.

[0032] Furthermore, the functional relationship between the infrared radiation intensity and the temperature mentioned in S802 is expressed as:

[0033]

[0034] Where M(λ, T) or I(λ, T) represents the radiation intensity at wavelength λ and temperature T; λ represents the wavelength; T represents the thermodynamic temperature; C1 and C2 represent Planck constants, where C1 = 3.74×10 -16 Wm 2 , C2=1.44×10 -2 mK.

[0035] Furthermore, the intelligent control module comprehensively controls the indoor temperature by combining fresh air circulation with temperature control by a temperature controller. The specific control calculation formula is:

[0036] T A(t+1) =T A(t) +k1×(T B(t) -T A(t) )×Q (t) -k2×P A(t) ;

[0037] Where T A(t+1) represents the temperature that room A needs to reach at time t+1; T A(t) represents the temperature of room A at time t; T B(t) represents the temperature of room B at time t; Q (t) represents the air flow from room B to room A at time t; k1 represents the coefficient of air circulation on temperature; k2 represents the coefficient of air conditioning on temperature; P A(t) represents the air conditioning power of room A at time t.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] The present invention proposes an intelligent temperature control sensing system for a three-dimensionally controlled central air conditioner. The system detects the temperature of each room and the outdoors by utilizing a distributed temperature monitoring module, and monitors the activity of the heat source of the human body, thereby utilizing the fresh air system to flexibly allocate the cold air or hot air resources of different rooms, and transfers the air with a suitable temperature in the empty room after people leave to another room that needs temperature adjustment through the fresh air duct, thereby realizing the reuse of waste cold air or hot air, supplementing the cooling and heating capacity of the air conditioner itself, thereby improving the cooling or heating effect of the air conditioner, reducing power loss, and achieving energy saving and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 The present invention is a schematic diagram of an intelligent temperature control sensor system for a central air conditioner with three-dimensional control.

[0041] Numbers in the figure: 1. outdoor host; 2. indoor vent; 201. first vent; 202. second vent; 203. third vent; 3. fresh air duct; 301. first fresh air duct; 302. second fresh air duct; 303. third fresh air duct; 4. outdoor vent; 5. electric multi-way valve; 6. temperature controller; 601. first temperature controller; 602. second temperature controller; 603. third temperature controller; 7. internal circulation pipe; 701. first circulation pipe; 702. second circulation pipe; 703. third circulation pipe; 8. outdoor temperature sensor; 9. indoor temperature sensor; 901. first indoor temperature sensor; 902. second indoor temperature sensor; 903. third indoor temperature sensor. DETAILED DESCRIPTION

[0042] 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.

[0043] like Figure 1 As shown, an intelligent temperature control sensor system for a three-dimensionally controlled central air conditioner includes: an air conditioner host module, a fresh air module, an intercommunication adjustment module, an independent temperature control module, a distributed temperature monitoring module and an intelligent control module.

[0044] The air conditioning host module includes an outdoor host 1, which includes a compressor, a condenser and a heat exchange fan. It is the core of the entire system. It compresses and expands the refrigerant through the compressor, thereby realizing heat transfer in the condenser and evaporator to achieve a cooling or heating effect.

[0045] The fresh air module includes an indoor vent 2 and a fresh air duct 3. An indoor vent 2 is provided in each room. The indoor vent 2 is connected to the outdoor vent 4 on the outdoor host 1 through the fresh air duct 3 to ensure indoor and outdoor air exchange and improve the air quality in the room. Taking a common household central air-conditioning as an example, the central air-conditioning is responsible for regulating the temperature of three rooms. A first vent 201 is installed in room A, and the first vent 201 is connected to the outdoor vent 4 through a first fresh air duct 301. A second vent 202 is installed in room B, and the second vent 202 is connected to the outdoor vent 4 through a second fresh air duct 302. A third vent 203 is installed in room C, and the third vent 203 is connected to the outdoor vent 4 through a third fresh air duct 303.

[0046] The intercommunication regulation module includes an electrically controlled multi-way valve 5, which is responsible for regulating the connection and closing of the fresh air duct 3 of each room and the outdoor vent 4, as well as the mutual connection and closing of the fresh air ducts 3 connecting different rooms. The electrically controlled multi-way valve 5 controls the opening and closing of the valve by receiving instructions from the intelligent regulation module, thereby regulating the connection state of the fresh air duct 3. There are four channels inside the valve, three of which correspond to the three fresh air ducts 3, and the other channel corresponds to the outdoor vent 4. By changing the opening and closing state of the channels, the mutual connection and closing of the fresh air ducts 3 in different rooms can be achieved.

[0047] The independent temperature control module includes multiple groups of temperature controllers 6, and the temperature controller 6 includes an evaporator and an air supply fan. The temperature controller 6 is installed on the outdoor part of the fresh air duct 3, and is responsible for adjusting the temperature of the air flowing through the fresh air duct 3 through the evaporator. The temperature controller 6 is also connected to the indoor vent 2 through an internal circulation pipe 7 to form a circulation. There are three internal circulation pipes 7. A first circulation pipe 701 is arranged between the first temperature controller 601 and the first vent 201, a second circulation pipe 702 is arranged between the second temperature controller 602 and the second vent 202, and a third circulation pipe 703 is arranged between the third temperature controller 603 and the third vent 203. The temperature controller 6 can produce cold air or hot air to meet the temperature control requirements of different rooms. Figure 1 As shown, a first temperature controller 601 is installed on the first fresh air duct 301 , a second temperature controller 602 is installed on the second fresh air duct 302 , and a third temperature controller 603 is installed on the third fresh air duct 303 .

[0048] The distributed temperature monitoring module includes an outdoor temperature sensor 8 and an indoor temperature sensor 9. The outdoor temperature sensor 8 is installed on the outdoor host 1 to monitor the indoor air temperature. The indoor temperature sensor 9 is installed on the indoor vent 2 to monitor the temperature in each room. The indoor temperature sensor 9 uses laser temperature measurement. A first indoor temperature sensor 901 is installed at the first vent 201, a second indoor temperature sensor 902 is installed at the second vent 202, and a third indoor temperature sensor 903 is installed at the third vent 203. The first indoor temperature sensor 901, the second indoor temperature sensor 902 and the third indoor temperature sensor 903 are used to independently monitor the temperature in room A, room B, and room C.

[0049] The indoor temperature sensor 9 adopts a laser temperature measuring probe, which uses the thermal effect generated by the interaction between laser and matter to measure the temperature. The laser emitted by the indoor temperature sensor 9 moves indoors along a predetermined trajectory to scan and measure the temperature of each point. During the scanning process, the laser beam will emit and receive scattered light, and the temperature value is calculated by measuring the change in the wavelength of the scattered light, so that the temperature distribution at different positions in the room can be measured, so that the indoor vents 2 can change the air outlet direction accordingly, so that the indoor temperature control is more three-dimensional and uniform.

[0050] The indoor temperature sensor 9 also detects the activity of the human body heat source during the scanning temperature measurement. Since the human body emits infrared radiation, the position and activity range of the human body can be determined by detecting the intensity of the infrared radiation. During the scanning process, when the laser beam irradiates the human body, a strong scattered light signal will be received. By analyzing the changes in these signals, the position and activity of the human body can be tracked in real time. The analysis method includes the following steps:

[0051] S1. Laser scanning: The laser beam moves in the room at a certain speed and path to scan various points. The scanning path and speed can be controlled by a preset algorithm to ensure the comprehensiveness and accuracy of the scan. The scanning path S(t) of the laser beam is expressed as:

[0052] S(t)={(x i (t), y i (t), z i (t))∣i=1, 2,...,N};

[0053] Among them, (x i (t), y i (t), z i (t)) represents the three-dimensional coordinates of the i-th point scanned by the laser beam at time t.

[0054] S2. Infrared radiation measurement: When the laser beam irradiates the human body, it will receive the infrared radiation emitted by the human body. The intensity of infrared radiation is related to the temperature of the object, so the temperature of the object can be inferred by measuring the intensity of infrared radiation. The measurement of infrared radiation is expressed as:

[0055] I(x,y,z,t)=f(T(x,y,z,t));

[0056] Among them, I(x, y, z, t) represents the infrared radiation intensity measured at time t and position (x, y, z), T(x, y, z, t) represents the temperature at that position, and f is the functional relationship between the infrared radiation intensity and the temperature, which can be expressed as:

[0057]

[0058] Where M(λ, T) or I(λ, T) represents the radiation intensity at wavelength λ and temperature T; λ represents the wavelength; T represents the thermodynamic temperature; C1 and C2 represent Planck constants, where C1 = 3.74×10 -16 Wm 2 , C2=1.44×10 -2 mK.

[0059] S3. Temperature calculation: According to the intensity of infrared radiation after filtering, the temperature of the object can be calculated. This needs to be achieved by table lookup or interpolation. The temperature calculation can be expressed as:

[0060] T′(x, y, z, t)=g(I′(x, y, z, t));

[0061] Wherein, T′(x, y, z, t) represents the temperature calculated at the time coordinate (x, y, z) at time t, and g is the inverse function relationship between infrared radiation intensity and temperature.

[0062] S4. Human heat source identification: In the calculated temperature field, the area with a temperature higher than the set threshold is identified as the human heat source. The human body is located by setting an appropriate temperature threshold. The human heat source identification is expressed as:

[0063] H(t)={(x, y, z)∣T1>T′(x, y, z, t)>T2};

[0064] Wherein, H(t) represents the human body heat source area identified at time t, T1 and T2 are set temperature thresholds. According to the average temperature of the human body, T1 is set to 37°C and T2 is set to 36.3°C.

[0065] Then, an isothermal contour model is established according to the coordinates (x, y, z) of the detection points that are consistent with the human body temperature, and is fitted with the human body contour model to determine the coordinates of the human body heat source.

[0066] The intelligent control module is based on multiple groups of outdoor temperature sensors 8 and indoor temperature sensors 9 in the distributed temperature monitoring module, and according to the infrared monitoring results of the indoor temperature sensor 9, determines the range of human heat source activities, and transports the cold air in other rooms to the rooms in the main activity range through the fresh air duct 3, thereby improving the fluidity of cold and hot air resources, improving the cooling and heating effects of the central air conditioner, and reducing the energy consumption of the central air conditioner. The circulation of hot and cold air between different rooms can be intelligently controlled in combination with the use requirements of the air conditioner, specifically by adjusting the connection between the first fresh air duct 301, the second fresh air duct 302, and the third fresh air duct 303 and the outdoor vent 4, and the mutual connection between the first fresh air duct 301, the second fresh air duct 302, and the third fresh air duct 303 through the electric control multi-way valve 5.

[0067] For example, now the indoor temperature sensor 9 detects that the user has left room B and entered room A. If the temperature detected by the second indoor temperature sensor 902 in room B is higher than the first indoor temperature sensor 901 in room A, the intelligent control module will send a signal to the electrically controlled multi-way valve 5 to connect the first fresh air duct 301 and the second fresh air duct 302 to each other, so as to use the fresh air duct to draw the low-temperature air in room B to room A, and cooperate with the first temperature controller 601 for cooling room A. The combination of the two temperature control methods can quickly reduce the temperature in room A to the predetermined temperature, and save time and some energy consumption. In the above control method, the control of the room temperature is affected by both the fresh air circulation and the air conditioning cooling. The specific control calculation formula is as follows:

[0068] T A(t+1) =T A(t) +k1×(T B(t) -T A(t) )×Q (t) -k2×P A(t) ;

[0069] Where T A(t+1) represents the temperature that room A needs to reach at time t+1; T A(t) represents the temperature of room A at time t; T B(t) represents the temperature of room B at time t; Q (t) represents the air flow from room B to room A at time t; k1 represents the coefficient of air circulation on temperature; k2 represents the coefficient of air conditioning on temperature; P A(t) represents the air conditioning power of room A at time t.

[0070] Therefore, the above formula can be used to intelligently adjust the balance between the fresh air delivery volume and air conditioning power between different rooms, thereby maximizing the use of existing hot air and cold air resources and saving electricity.

[0071] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0072] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent temperature control sensor system for a central air conditioner with three-dimensional control, characterized in that: The system includes: an air conditioning host module, a fresh air module, an intercommunication adjustment module, an independent temperature control module, a distributed temperature monitoring module and an intelligent control module; The air conditioning host module comprises an outdoor host (1), and the outdoor host (1) comprises a compressor, a condenser and a heat exchange fan, and plays a cooling role; The fresh air module comprises an indoor vent (2) and a fresh air duct (3), each room is provided with an indoor vent (2), and the indoor vent (2) is connected to an outdoor vent (4) on the outdoor host (1) through the fresh air duct (3); The intercommunication regulation module comprises an electrically controlled multi-way valve (5), which is responsible for regulating the connection and closing of the fresh air duct (3) of each room and the outdoor vent (4), as well as the mutual connection and closing of the fresh air ducts (3) connecting different rooms. The electrically controlled multi-way valve (5) controls the opening and closing of the valve by receiving instructions from the intelligent regulation module, thereby regulating the connection state of the fresh air duct (3); The independent temperature control module comprises a temperature controller (6), the temperature controller (6) comprises an evaporator and an air supply fan, the temperature controller (6) is installed on the outdoor part of the fresh air duct (3), and each fresh air duct (3) is provided with a temperature controller (6), and the temperature controller (6) is responsible for regulating the temperature of the air flowing through the fresh air duct (3) through the evaporator; The distributed temperature monitoring module comprises an outdoor temperature sensor (8) and an indoor temperature sensor (9); the outdoor temperature sensor (8) is installed on the outdoor host (1) and is used to monitor the indoor air temperature; the indoor temperature sensor (9) is installed on the indoor vent (2) and is used to monitor the temperature in each room; the indoor temperature sensor (9) uses laser temperature measurement to monitor the range of human activity; The intelligent control module determines the activity range of human heat sources based on the monitoring data of multiple groups of outdoor temperature sensors (8) and indoor temperature sensors (9) in the distributed temperature monitoring module and the infrared monitoring results of the indoor temperature sensors (9), and transports the cold air in other rooms to the room where the human body is mainly active through the fresh air duct (3).

2. The intelligent temperature control sensor system for central air conditioning with three-dimensional control as claimed in claim 1, characterized in that: The electrically controlled multi-way valve (5) regulates the circulation of air in three rooms through three groups of fresh air ducts (3) and indoor vents (2), wherein a first vent (201) is installed in room A, and the first vent (201) is connected to an outdoor vent (4) through a first fresh air duct (301) and the electrically controlled multi-way valve (5); a second vent (202) is installed in room B, and the second vent (202) is connected to the outdoor vent (4) through a second fresh air duct (302) and the electrically controlled multi-way valve (5); and a third vent (203) is installed in room C, and the third vent (203) is connected to the outdoor vent (4) through a third fresh air duct (303) and the electrically controlled multi-way valve (5).

3. The intelligent temperature control sensor system for a central air conditioner with three-dimensional control as claimed in claim 1, characterized in that: The electrically controlled multi-way valve (5) is provided with four channels inside, three of which correspond to the three fresh air ducts (3), and the other corresponds to the outdoor vent (4).

4. The intelligent temperature control sensor system for a central air conditioner with three-dimensional control as claimed in claim 2, characterized in that: The first fresh air duct (301) is installed with a first temperature controller (601), the second fresh air duct (302) is installed with a second temperature controller (602), and the third fresh air duct (303) is installed with a third temperature controller (603).

5. The intelligent temperature control sensor system for a central air conditioner with three-dimensional control as claimed in claim 4, characterized in that: An internal circulation pipe (7) is arranged between the temperature controller (6) and the indoor ventilation port (2); the temperature controller (6) and the indoor ventilation port (2) are connected via the internal circulation pipe (7) to form an internal circulation; three internal circulation pipes (7) are arranged, a first circulation pipe (701) is arranged between the first temperature controller (601) and the first ventilation port (201), a second circulation pipe (702) is arranged between the second temperature controller (602) and the second ventilation port (202), and a third circulation pipe (703) is arranged between the third temperature controller (603) and the third ventilation port (203).

6. The intelligent temperature control sensor system for a central air conditioner with three-dimensional control as claimed in claim 2, characterized in that: A first indoor temperature sensor (901) is installed at the first ventilation opening (201), a second indoor temperature sensor (902) is installed at the second ventilation opening (202), and a third indoor temperature sensor (903) is installed at the third ventilation opening (203).

7. The intelligent temperature control sensor system for a central air conditioner with three-dimensional control as claimed in claim 6, characterized in that: The first indoor temperature sensor (901), the second indoor temperature sensor (902) and the third indoor temperature sensor (903) all use scanning laser temperature measuring probes, which are used to measure the temperature distribution at different positions in the room and detect the heat source of the human body.

8. The intelligent temperature control sensor system for central air conditioning with three-dimensional control as claimed in claim 7, characterized in that: The process of the indoor temperature sensor (9) detecting and analyzing the heat source of the human body comprises the following steps: S801. Laser scanning: The laser beam moves in the room at a certain speed and path to scan each point. The scanning path S(t) of the laser beam is expressed as: S(t)={(x i (t),y i (t),z i (t))∣i=1,2,...,N}; Among them, (x i (t), y i (t), z i (t)) represents the three-dimensional coordinates of the i-th point scanned by the laser beam at time t; S802. Infrared radiation measurement: When the laser beam irradiates the human body, it will receive the infrared radiation emitted by the human body. The intensity of infrared radiation is related to the temperature of the object. Therefore, the temperature of the object can be calculated by measuring the intensity of infrared radiation. The measurement of infrared radiation is expressed as: I(x,y,z,t)=f(T(x,y,z,t)); Where I(x, y, z, t) represents the infrared radiation intensity measured at time t and position (x, y, z), T(x, y, z, t) represents the temperature at that position, and f is the functional relationship between the infrared radiation intensity and the temperature. S803. Temperature calculation: Based on the intensity of infrared radiation after filtering, the temperature of the object can be calculated. The temperature calculation formula is: T′(x, y, z, t)=g(I′(x, y, z, t)); Where T′(x, y, z, t) represents the temperature calculated at the time coordinate (x, y, z) at time t, and g is the inverse function relationship between infrared radiation intensity and temperature; S804. Human body heat source identification: In the calculated temperature field, the area with a temperature higher than the set threshold is identified as the human body heat source. The human body is located by setting the temperature threshold. The human body heat source identification is expressed as: H(t)={(x, y, z)∣T1>T′(x, y, z, t)>T2}; Where H(t) represents the human body heat source area identified at time t, T1 and T2 are the set temperature thresholds. According to the average human body temperature, T1 is set to 37°C and T2 is set to 36.3°C. Then, an isothermal contour model is established according to the coordinates (x, y, z) of the detection points that are consistent with the human body temperature, and is fitted with the human body contour model to determine the coordinates of the human body heat source.

9. The intelligent temperature control sensor system for central air conditioning with three-dimensional control as claimed in claim 8, characterized in that: The functional relationship between the infrared radiation intensity and the temperature mentioned in S802 is expressed as: Where M(λ, T) or I(λ, T) represents the radiation intensity at wavelength λ and temperature T; λ represents the wavelength; T represents the thermodynamic temperature; C1 and C2 represent Planck constants, where C1 = 3.74×10 -16 Wm 2 , C2=1.44×10 -2 mK.

10. The intelligent temperature control sensor system for central air conditioning with three-dimensional control as claimed in claim 1, characterized in that: The intelligent control module performs comprehensive control on the indoor temperature by combining fresh air circulation with temperature control by the temperature controller (6). The specific control calculation formula is: T A(t+1) =T A(t) +k1×(T B(t) -T A(t) )×Q (t) -k2×P A(t) ; Where T A(t+1) represents the temperature that room A needs to reach at time t+1; T A(t) represents the temperature of room A at time t; T B(t) represents the temperature of room B at time t; Q (t) represents the air flow from room B to room A at time t; k1 represents the coefficient of air circulation on temperature; k2 represents the coefficient of air conditioning on temperature; P A(t) represents the air conditioning power of room A at time t.

Images