An artificial intelligence type laboratory energy-saving control method

Abstract

The application discloses an artificial intelligence type laboratory energy-saving control method, comprising the following steps: A, setting a first heat exchanger, a second heat exchanger, a first temperature sensor, a second temperature sensor, a circulating air outlet and a fresh air outlet; B, setting a first temperature difference threshold and a second temperature difference threshold; C, when fresh air can be used to quickly adjust room temperature, then the fresh air pipeline is separately opened to send air to the laboratory through the fresh air outlet; D, when fresh air can be used to adjust room temperature but the adjustment speed is insufficient, then the fresh air pipeline and the circulating air pipeline are simultaneously opened, and when fresh air cannot be used to adjust room temperature, the fresh air pipeline is closed; E, when fresh air cannot be used to adjust room temperature, the circulating air pipeline is separately opened. The application can improve the defects of the prior art, improve temperature adjustment accuracy and reduce energy consumption of an air conditioning unit.

Description

Technical Field

[0001] This invention relates to the field of laboratory air conditioning unit control technology, and in particular to an artificial intelligence-based laboratory energy-saving control method. Background Technology

[0002] A laboratory is a relatively enclosed space, and its internal air temperature is regulated and controlled by a dedicated air conditioning system. Existing air conditioning units primarily determine their airflow and temperature by directly collecting the laboratory's room temperature data. This method results in significant temperature fluctuations when the laboratory room temperature approaches the set temperature. These fluctuations cause the air conditioning units to consume additional energy to stabilize the indoor temperature, leading to inaccurate temperature control and making it difficult to further reduce the energy consumption of the air conditioning units. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an artificial intelligence-based laboratory energy-saving control method that can overcome the shortcomings of the prior art, improve the accuracy of temperature regulation, and reduce the energy consumption of air conditioning units.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows.

[0005] An AI-based laboratory energy-saving control method includes the following steps:

[0006] A. A first heat exchanger and a second heat exchanger are installed. The circulating air duct passes through the first heat exchanger and the second heat exchanger in sequence according to the airflow direction. A spherical reflux area is set at the top of the laboratory. A first temperature sensor is installed in the spherical reflux area. Several second temperature sensors are set at other locations in the laboratory. The installation height of the second temperature sensors is lower than that of the first temperature sensors. A circulating air outlet and a fresh air outlet are installed at the top of the side wall of the laboratory. The circulating air outlet is connected to the circulating air duct, and the fresh air outlet is connected to the fresh air duct. The airflow direction of the circulating air outlet and the fresh air outlet passes through the first temperature sensor.

[0007] B. Set a first temperature difference threshold and a second temperature difference threshold, wherein the first temperature difference threshold is greater than the second temperature difference threshold;

[0008] C. When the average temperature detected by the second temperature sensor is greater than the preset target temperature value, and the fresh air temperature is lower than the preset target temperature value, the fresh air duct is opened separately to supply air to the laboratory through the fresh air outlet, so that the average temperature detected by the second temperature sensor is equal to the preset target temperature value; when the average temperature detected by the second temperature sensor is less than the preset target temperature value, and the fresh air temperature is higher than the preset target temperature value, the fresh air duct is opened separately to supply air to the laboratory through the fresh air outlet, so that the average temperature detected by the second temperature sensor is equal to the preset target temperature value.

[0009] D. When the average temperature detected by the second temperature sensor is greater than the preset target temperature value, and the fresh air temperature is higher than the preset target temperature value but lower than the average temperature detected by the second temperature sensor, then the fresh air duct and the circulating air duct are opened simultaneously, and air is supplied to the laboratory through the circulating air outlet and the fresh air outlet. When the fresh air temperature is equal to the average temperature detected by the second temperature sensor, the fresh air duct is closed, and the circulating air duct is used alone to supply air to the laboratory, so that the average temperature detected by the second temperature sensor is equal to the preset target temperature value; when the average temperature detected by the second temperature sensor is less than the preset target temperature value, and the fresh air temperature is less than the preset target temperature value but greater than the average temperature detected by the second temperature sensor, then the fresh air duct and the circulating air duct are opened simultaneously, and air is supplied to the laboratory through the circulating air outlet and the fresh air outlet. When the fresh air temperature is equal to the average temperature detected by the second temperature sensor, the fresh air duct is closed, and the circulating air duct is used alone to supply air to the laboratory, so that the average temperature detected by the second temperature sensor is equal to the preset target temperature value.

[0010] E. When the average temperature detected by the second temperature sensor is greater than the preset target temperature value, and the fresh air temperature is higher than the preset target temperature value and greater than or equal to the average temperature detected by the second temperature sensor, or when the average temperature detected by the second temperature sensor is less than the preset target temperature value, and the fresh air temperature is higher than the preset target temperature value and less than or equal to the average temperature detected by the second temperature sensor, the circulating air duct is opened separately to supply air to the laboratory so that the average temperature detected by the second temperature sensor is equal to the preset target temperature value.

[0011] Preferably, the second temperature sensor is installed at a height of 0.5 to 1.5 m.

[0012] Preferably, when the deviation between the average temperature detected by the second temperature sensor and the preset target temperature value is greater than or equal to the first temperature difference threshold, the maximum airflow is used to supply air into the laboratory. When the deviation between the average temperature detected by the second temperature sensor and the preset target temperature value is less than the first temperature difference threshold but greater than or equal to the second temperature difference threshold, the maximum airflow is used to supply air into the laboratory while the temperature difference between the average temperature detected by the first and second temperature sensors is monitored in real time. When the deviation between the average temperature detected by the second temperature sensor and the preset target temperature value is less than the second temperature difference threshold, the historical temperature difference changes and real-time temperature differences between the average temperature detected by the first and second temperature sensors are processed, and the airflow speed is adjusted according to the processing results.

[0013] Preferably, the historical temperature difference and real-time temperature difference of the average detected temperatures from the first and second temperature sensors are processed, and the air supply speed is adjusted based on the processing results, including the following steps.

[0014] Based on historical temperature difference changes, the functional relationship between temperature difference changes and supply air speed is calculated. Characteristic segments of historical temperature difference curves are extracted, and a two-dimensional set of correlation functions between adjacent characteristic segments and between characteristic segments and wind speed curves in corresponding time intervals is established.

[0015] Based on the real-time temperature difference and the functional relationship between temperature difference change and air supply speed, the preset real-time air speed is obtained. Then, based on the real-time temperature difference and the characteristic line segments on the adjacent historical temperature difference curve segments, the preset real-time air speed is corrected using the retrieved two-dimensional correlation function.

[0016] Preferably, in step D or E, when the circulating air duct is in a state of independent air supply, if the deviation between the average temperature detected by the second temperature sensor and the preset target temperature value is greater than or equal to the first temperature difference threshold, then the first heat exchanger and the second heat exchanger are turned on simultaneously; if the deviation between the average temperature detected by the second temperature sensor and the preset target temperature value is less than the first temperature difference threshold, then either the first heat exchanger or the second heat exchanger is turned on.

[0017] The beneficial effects of adopting the above technical solution are as follows: This invention reduces the operating rate of heat exchangers by optimizing the use of fresh air, thereby reducing energy consumption. When using circulating air to regulate room temperature, the total power of the heat exchangers is determined based on real-time temperature changes, thus flexibly controlling the opening and closing of the two heat exchangers, further reducing power consumption, and improving the accuracy of temperature control when the actual temperature is close to the set temperature. Addressing the issue of temperature fluctuations at the end of temperature control, this invention establishes a two-dimensional correlation function set between temperature difference changes and supply air velocity, as well as between adjacent characteristic line segments and between characteristic line segments and wind speed curves on corresponding time intervals, thereby precisely adjusting the real-time wind speed and effectively reducing the amplitude and duration of temperature fluctuations. The first temperature sensor is used to measure the real-time temperature of the indoor intake air; by optimizing the installation position of the sensor and the air inlet, the accuracy of intake air temperature measurement is improved. Attached Figure Description

[0018] Figure 1 This is a hardware schematic diagram of a specific embodiment of the present invention. Detailed Implementation

[0019] Reference Figure 1 One specific embodiment of the present invention includes the following steps:

[0020] A. A first heat exchanger 1 and a second heat exchanger 2 are installed. The circulating air duct 3 passes through the first heat exchanger 1 and the second heat exchanger 2 in sequence according to the airflow direction. A spherical reflux area 4 is set at the top of the laboratory. A first temperature sensor 5 is installed in the spherical reflux area 4. Several second temperature sensors 6 are set at other locations in the laboratory. The installation height of the second temperature sensors 6 is 0.5 to 1.5 m. A circulating air outlet 7 and a fresh air outlet 8 are installed at the top of the side wall of the laboratory. The circulating air outlet 7 is connected to the circulating air duct 3, and the fresh air outlet 8 is connected to the fresh air duct 9. The air outlet direction of the circulating air outlet 7 and the fresh air outlet 8 passes through the first temperature sensor 5.

[0021] B. Set a first temperature difference threshold and a second temperature difference threshold, wherein the first temperature difference threshold is greater than the second temperature difference threshold;

[0022] C. When the average temperature detected by the second temperature sensor 6 is greater than the preset target temperature value, and the fresh air temperature is lower than the preset target temperature value, the fresh air duct 9 is opened separately to supply air to the laboratory through the fresh air outlet 8, so that the average temperature detected by the second temperature sensor 6 is equal to the preset target temperature value; when the average temperature detected by the second temperature sensor 6 is less than the preset target temperature value, and the fresh air temperature is higher than the preset target temperature value, the fresh air duct 9 is opened separately to supply air to the laboratory through the fresh air outlet 8, so that the average temperature detected by the second temperature sensor 6 is equal to the preset target temperature value.

[0023] D. When the average temperature detected by the second temperature sensor 6 is greater than the preset target temperature value, and the fresh air temperature is higher than the preset target temperature value but lower than the average temperature detected by the second temperature sensor 6, then the fresh air duct 9 and the circulating air duct 3 are opened simultaneously, and air is supplied to the laboratory through the circulating air outlet 7 and the fresh air outlet 8. When the fresh air temperature is equal to the average temperature detected by the second temperature sensor 6, the fresh air duct 9 is closed, and the circulating air duct 3 is used alone to supply air to the laboratory, so that the average temperature detected by the second temperature sensor 6 is equal to the preset target temperature value; when the average temperature detected by the second temperature sensor 6 is less than the preset target temperature value, and the fresh air temperature is less than the preset target temperature value but greater than the average temperature detected by the second temperature sensor 6, then the fresh air duct 9 and the circulating air duct 3 are opened simultaneously, and air is supplied to the laboratory through the circulating air outlet 7 and the fresh air outlet 8. When the fresh air temperature is equal to the average temperature detected by the second temperature sensor 6, the fresh air duct 9 is closed, and the circulating air duct 3 is used alone to supply air to the laboratory, so that the average temperature detected by the second temperature sensor 6 is equal to the preset target temperature value.

[0024] E. When the average temperature detected by the second temperature sensor 6 is greater than the preset target temperature value, and the fresh air temperature is higher than the preset target temperature value and greater than or equal to the average temperature detected by the second temperature sensor 6, or when the average temperature detected by the second temperature sensor 6 is less than the preset target temperature value, and the fresh air temperature is higher than the preset target temperature value and less than or equal to the average temperature detected by the second temperature sensor 6, the circulating air duct 3 is opened separately to supply air to the laboratory so that the average temperature detected by the second temperature sensor 6 is equal to the preset target temperature value.

[0025] When the deviation between the average temperature detected by the second temperature sensor 6 and the preset target temperature value is greater than or equal to the first temperature difference threshold, the maximum airflow is used to supply air into the laboratory. When the deviation between the average temperature detected by the second temperature sensor 6 and the preset target temperature value is less than the first temperature difference threshold but greater than or equal to the second temperature difference threshold, the maximum airflow is used to supply air into the laboratory while the temperature difference between the average temperature detected by the first temperature sensor 5 and the second temperature sensor 6 is monitored in real time. When the deviation between the average temperature detected by the second temperature sensor 6 and the preset target temperature value is less than the second temperature difference threshold, the historical temperature difference changes and real-time temperature differences between the average temperature detected by the first temperature sensor 5 and the second temperature sensor 6 are processed, and the airflow speed is adjusted according to the processing results.

[0026] The historical and real-time temperature differences between the average values ​​detected by the first temperature sensor 5 and the second temperature sensor 6 are processed, and the air supply speed is adjusted based on the processing results, including the following steps.

[0027] Based on historical temperature difference changes, the functional relationship between temperature difference changes and supply air speed is calculated. Characteristic segments of historical temperature difference curves are extracted, and a two-dimensional set of correlation functions between adjacent characteristic segments and between characteristic segments and wind speed curves in corresponding time intervals is established.

[0028] Based on the real-time temperature difference and the functional relationship between temperature difference change and air supply speed, the preset real-time air speed is obtained. Then, based on the real-time temperature difference and the characteristic line segments on the adjacent historical temperature difference curve segments, the preset real-time air speed is corrected using the retrieved two-dimensional correlation function.

[0029] In step D or E, when the circulating air duct 3 is in the state of supplying air alone, if the deviation between the average temperature detected by the second temperature sensor 6 and the preset target temperature value is greater than or equal to the first temperature difference threshold, then the first heat exchanger 1 and the second heat exchanger 2 are turned on at the same time. If the deviation between the average temperature detected by the second temperature sensor 6 and the preset target temperature value is less than the first temperature difference threshold, then either the first heat exchanger 1 or the second heat exchanger 2 is turned on.

[0030] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. An artificial intelligence type laboratory energy saving control method, characterized by It comprises the following steps: A. Set the first heat exchanger (1) and the second heat exchanger (2), and the circulating air pipeline (3) passes through the first heat exchanger (1) and the second heat exchanger (2) in turn according to the air flow direction; A spherical return area (4) is arranged at the top of the laboratory, a first temperature sensor (5) is installed in the spherical return area (4), a plurality of second temperature sensors (6) are arranged at other positions of the laboratory, the installation height of the second temperature sensors (6) is lower than that of the first temperature sensor (5), a circulating air outlet (7) and a fresh air outlet (8) are installed at the top of the side wall of the laboratory, the circulating air outlet (7) is connected with the circulating air pipeline (3), the fresh air outlet (8) is connected with a fresh air pipeline (9), and the air outlet directions of the circulating air outlet (7) and the fresh air outlet (8) pass through the first temperature sensor (5); B. Set the first temperature difference threshold and the second temperature difference threshold, and the first temperature difference threshold is greater than the second temperature difference threshold; When the deviation of the average value of the detection temperature of the second temperature sensor (6) from the preset target temperature value is greater than or equal to the first temperature difference threshold, the maximum air volume is used to supply air to the laboratory, when the deviation of the average value of the detection temperature of the second temperature sensor (6) from the preset target temperature value is less than the first temperature difference threshold and greater than or equal to the second temperature difference threshold, the maximum air volume is used to supply air to the laboratory while the temperature difference change between the average values of the detection temperatures of the first temperature sensor (5) and the second temperature sensor (6) is monitored in real time, and when the deviation of the average value of the detection temperature of the second temperature sensor (6) from the preset target temperature value is less than the second temperature difference threshold, the historical temperature difference change and the real-time temperature difference between the average values of the detection temperatures of the first temperature sensor (5) and the second temperature sensor (6) are processed, and the air supply speed is adjusted according to the processing result; The historical temperature difference change and the real-time temperature difference between the average values of the detection temperatures of the first temperature sensor (5) and the second temperature sensor (6) are processed, and the air supply speed is adjusted according to the processing result, which comprises the following steps: According to the historical temperature difference change, the functional relationship between the temperature difference change and the air supply speed is calculated, the characteristic line segments of the historical temperature difference curve are extracted, and a two-dimensional correlation function set between adjacent characteristic line segments and between the characteristic line segments and the air speed curve in the corresponding time interval is established; According to the real-time temperature difference and the functional relationship between the temperature difference change and the air supply speed, a preset real-time air speed is obtained, then the real-time air speed is modified by searching the two-dimensional correlation function set according to the real-time temperature difference and the characteristic line segments on the historical temperature difference curve adjacent to the real-time temperature difference. 2.The AI-based lab energy saving control method of claim 1, wherein: The installation height of the second temperature sensor (6) is 0.5-1.5 m.

3. The artificial intelligence-based laboratory energy saving control method according to any one of claims 1-2, characterized in that: When the average value of the detected temperature of the second temperature sensor (6) is greater than the preset target temperature value, and the fresh air temperature is lower than the preset target temperature value, only the fresh air pipeline (9) is opened, and air is supplied to the laboratory through the fresh air outlet (8) to make the average value of the detected temperature of the second temperature sensor (6) equal to the preset target temperature value; when the average value of the detected temperature of the second temperature sensor (6) is less than the preset target temperature value, and the fresh air temperature is higher than the preset target temperature value, only the fresh air pipeline (9) is opened, and air is supplied to the laboratory through the fresh air outlet (8) to make the average value of the detected temperature of the second temperature sensor (6) equal to the preset target temperature value; When the average value of the detected temperature of the second temperature sensor (6) is greater than the preset target temperature value, and the fresh air temperature is higher than the preset target temperature value and less than the average value of the detected temperature of the second temperature sensor (6), the fresh air pipeline (9) and the circulating air pipeline (3) are opened at the same time, air is supplied to the laboratory through the circulating air outlet (7) and the fresh air outlet (8), when the fresh air temperature is equal to the average value of the detected temperature of the second temperature sensor (6), the fresh air pipeline (9) is closed, and only the circulating air pipeline (3) is used to supply air to the laboratory, so that the average value of the detected temperature of the second temperature sensor (6) is equal to the preset target temperature value; when the average value of the detected temperature of the second temperature sensor (6) is less than the preset target temperature value, and the fresh air temperature is less than the preset target temperature value and greater than the average value of the detected temperature of the second temperature sensor (6), the fresh air pipeline (9) and the circulating air pipeline (3) are opened at the same time, air is supplied to the laboratory through the circulating air outlet (7) and the fresh air outlet (8), when the fresh air temperature is equal to the average value of the detected temperature of the second temperature sensor (6), the fresh air pipeline (9) is closed, and only the circulating air pipeline (3) is used to supply air to the laboratory, so that the average value of the detected temperature of the second temperature sensor (6) is equal to the preset target temperature value; When the average value of the detected temperature of the second temperature sensor (6) is greater than the preset target temperature value, and the fresh air temperature is higher than the preset target temperature value and greater than or equal to the average value of the detected temperature of the second temperature sensor (6), or when the average value of the detected temperature of the second temperature sensor (6) is less than the preset target temperature value, and the fresh air temperature is higher than the preset target temperature value and less than or equal to the average value of the detected temperature of the second temperature sensor (6), only the circulating air pipeline (3) is opened to supply air to the laboratory, so that the average value of the detected temperature of the second temperature sensor (6) is equal to the preset target temperature value. 4.The AI-based lab energy saving control method of claim 3, wherein: When the circulating air pipeline (3) is in a state of supplying air alone, if the deviation of the average value of the detected temperature of the second temperature sensor (6) from the preset target temperature value is greater than or equal to the first temperature difference threshold, the first heat exchanger (1) and the second heat exchanger (2) are opened at the same time, and if the deviation of the average value of the detected temperature of the second temperature sensor (6) from the preset target temperature value is less than the first temperature difference threshold, only one of the first heat exchanger (1) and the second heat exchanger (2) is opened.

Images