5g communication base station machine room efficient energy-saving cooling comprehensive intelligent control method and system

Abstract

The application relates to the technical field of machine room cooling, in particular to a 5G communication base station machine room efficient energy-saving cooling comprehensive intelligent control method and system, which comprises the following steps: acquiring the indoor temperature of each region at the current moment and the output power of each communication device, and the outdoor temperature at the current moment in real time; acquiring the indoor temperature of each region at each moment in a test period when each heat exchange fan is independently operated and the output power of each communication device; acquiring a temperature conduction value and a characteristic moment; calculating the temperature deviation degree and the heat exchange degree of each region; calculating the heat load degree of each region at the current moment; selecting a target region and the corresponding optimal heat exchange fan; adjusting the air volume of the optimal heat exchange fan; and performing energy-saving cooling on the base station machine room. The air volume of the heat exchange fan is dynamically adjusted, the cooling efficiency of the base station machine room under the natural cold source cooling mode is improved, and energy efficiency can be saved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of machine room cooling, in particular to a 5G communication base station machine room efficient energy-saving cooling comprehensive intelligent control method and system. BACKGROUND

[0002] With the rapid expansion of the 5G network scale, the high-power operation of the communication equipment in the base station machine room causes a large amount of concentrated heat in the base station machine room. In the operation process of the 5G communication base station machine room, the heat generated by the equipment needs to be discharged in time to ensure that the equipment operates within the normal temperature range.

[0003] The traditional cooling method usually relies on the mechanical refrigeration cooling mode of high-energy-consumption air conditioners. This mode not only has extremely high energy consumption, aggravates carbon emissions, and does not meet the development requirements of green communication, but also cannot fully utilize the outdoor natural cold source, resulting in huge energy waste. In the natural cold source cooling mode, the outdoor cold air is conducted by a heat exchange fan to exchange with the indoor heat to cool and control the base station machine room. The cooling efficiency depends on the air volume control of the heat exchange fan. However, due to the unevenness of the thermal load distribution in different regions of the machine room, the time-varying characteristics of thermal inertia, and the differences in the cooling efficiency of the heat exchange fan for different regions, the cooling resources are not reasonably distributed, and local overheating or overall overcooling phenomenon is prone to occur, which is difficult to realize fine energy-saving and consumption-reducing under the premise of ensuring the safety of the equipment. SUMMARY

[0004] In order to solve the above technical problems, the 5G communication base station machine room efficient energy-saving cooling comprehensive intelligent control method and system are provided to solve the existing problems.

[0005] The technical problem of the application is solved by providing a 5G communication base station machine room efficient energy-saving cooling comprehensive intelligent control method and system, which comprises the following steps:

[0006] In the first aspect, the application provides a 5G communication base station machine room efficient energy-saving cooling comprehensive intelligent control method, which comprises the following steps:

[0007] When the base station machine room is in the natural cold source cooling mode, the outdoor temperature at the current time, the indoor temperature of each region and the output power of each communication equipment thereof are acquired. The base station machine room is tested to acquire the indoor temperature of each region and the output power of each communication equipment thereof at each time in the test period when each heat exchange fan is operated alone.

[0008] When each heat exchange fan is operated alone, the difference in the change rate of the indoor temperature between adjacent time points in the test period and the proximity of the indoor temperature to the highest temperature of each region are analyzed to determine the temperature conduction value of each region at each time in the test period. The time point with the maximum temperature conduction value is selected as the characteristic time point of each region.

[0009] analyze the proportion of the time length of each area from the start of the test to the characteristic moment, and the deviation of the indoor temperature at the last moment in the test period, calculate the temperature deviation degree of each area, combine the output power of the communication equipment in each area and the temperature conduction value at the characteristic moment, determine the heat exchange degree of each heat exchange fan to each area;

[0010] Calculate the heat load degree of each area at the current moment by the difference between the indoor temperature and the outdoor temperature of each area at the current moment, and the output power of the communication equipment, and select the area with the largest heat load degree as the target area;

[0011] Based on the heat exchange degree of each heat exchange fan to the target area and the heat load degree, the heat exchange fan is screened, the optimal heat exchange fan corresponding to the target area is obtained, and the air volume of the optimal heat exchange fan is adjusted according to the heat load degree of the target area, so as to realize energy saving and cooling of the base station room.

[0012] Preferably, when the outdoor temperature is lower than the preset temperature value, there is a natural cold source in the outdoor environment, and the cooling system of the base station room is in a natural cold source cooling mode.

[0013] Preferably, the test period is the period from the start of the heat exchange fan to the first moment when the indoor temperature is equal at a plurality of continuous moments, wherein the indoor temperature equal at a plurality of continuous moments is recorded as the thermal equilibrium temperature.

[0014] Preferably, the determination of the temperature conduction value of each area at each moment in the test period comprises:

[0015] For each area, the indoor temperature at all moments in the test period is curve fitted, the tangent slope of the fitting curve at each moment is calculated, the difference between the tangent slopes of adjacent two moments is calculated and recorded as the relative difference, and the relative difference is negatively mapped;

[0016] The maximum value of the indoor temperature at all moments in the test period is obtained; the relative change rate between the maximum value and the indoor temperature at each moment is calculated.

[0017] The temperature conduction value is the ratio of the result of the negative mapping to the relative change rate.

[0018] Preferably, the calculation of the temperature deviation degree of each area comprises:

[0019] The interval time length from the first moment to the characteristic moment in the test period is counted for each area; the ratio of the interval time length to the time length of the test period is calculated as a relative ratio.

[0020] Calculate the difference between the thermal equilibrium temperature and the preset operating temperature for each region and perform a positive mapping;

[0021] The temperature deviation is the product of the relative ratio and the result of the positive mapping.

[0022] Preferably, determining the heat exchange rate of each heat exchange fan for each area includes:

[0023] For each heat exchange fan running individually, calculate the average output power of each communication device in each area at all times during the test period, and record it as the average power. Calculate the sum of the average power of all communication devices in each area.

[0024] Calculate the product of the temperature conduction value of each region at a characteristic time and the cumulative sum;

[0025] The heat exchange rate is the normalized result of the ratio of the product to the temperature deviation.

[0026] Preferably, the calculation of the heat load of each region at the current moment includes:

[0027] Calculate the difference between the indoor and outdoor temperatures in each area at the current moment, and record it as the relative temperature difference;

[0028] Calculate the ratio of the indoor temperature of each area to the relative temperature difference at the current moment, and use it as the heat exchange efficiency ratio of each area at the current moment;

[0029] Calculate the sum of the output power of all communication devices in each region at the current moment, and record it as the total output power;

[0030] The heat load is the normalized result of the product of total output power and heat exchange efficiency ratio.

[0031] Preferably, the method for obtaining the optimal heat exchange fan corresponding to the target area is as follows: calculate the reciprocal of the difference between the heat exchange degree of each heat exchange fan to the target area and the heat load degree, and use it as the matching degree of each heat exchange fan to the target area. Select the heat exchange fan with the largest matching degree and record it as the optimal heat exchange fan corresponding to the target area.

[0032] Preferred, optimal heat exchange fan in Adjusted airflow at all times The calculation formula is: ,in, For optimal heat exchange fan in The airflow should correspond to the airflow before the adjustment. For the target region at the current moment Heat load, As a preset first value, The preset second value, wherein the preset first value is less than the preset second value.

[0033] In a second aspect, the embodiments of the present application further provide a 5G communication base station room efficient energy-saving cooling comprehensive intelligent control system, comprising a memory, a processor and a computer program stored in the memory and running on the processor, and the processor implements the steps of the 5G communication base station room efficient energy-saving cooling comprehensive intelligent control method of any one of the above.

[0034] The present application has at least the following beneficial effects:

[0035] The present application analyzes the change rate of indoor temperature of each area in the test period when each heat exchange fan operates independently, determines the temperature conduction value of each area at each time in the test period, and has the beneficial effect of capturing the dynamic process of the change of indoor temperature in the area, reflecting the heat conduction of the heat exchange fan in the area; all time points in the test period are selected, and the characteristic time point corresponding to each area is selected, which has the beneficial effect of selecting the key time point when the cooling effect of the heat exchange fan starts to curb the heat rise in the area, to reflect the situation that the heat generated by the communication equipment in the area starts to be conducted out by the heat exchange fan; the temperature deviation degree of each area is calculated, which has the beneficial effect of considering the heat conduction speed and cooling efficiency of the heat exchange fan in the area; secondly, the heat exchange degree of each heat exchange fan to each area is determined, which has the beneficial effect of considering the heat cooling efficiency of each heat exchange fan to different areas, reflecting the cooling efficiency of each heat exchange fan in different areas; the heat load degree of each area at the current time is calculated, which has the beneficial effect of considering the heat load of different areas, so as to select the target area with the highest heat load for cooling. The target area is the area with the most serious heat generation, the most difficult heat dissipation, and the most urgent cooling demand in the entire room, which needs more cold energy to maintain temperature balance; the heat exchange fan is screened according to the heat exchange degree and the heat load degree of each heat exchange fan to the target area, and the optimal heat exchange fan corresponding to the target area is obtained, the air volume of the optimal heat exchange fan is adjusted, and the base station room is cooled and saved, which has the beneficial effect of screening the heat exchange fan that best matches the cooling effect of the target area, maximizing the cooling efficiency, and dynamically adjusting the air volume of the heat exchange fan according to the real-time heat load degree of the target area, thereby improving the cooling efficiency of the base station room in the natural cooling mode and saving energy, and avoiding the waste of fan energy caused by excessive supply. BRIEF DESCRIPTION OF DRAWINGS

[0036] The 5G communication base station room efficient energy-saving cooling comprehensive intelligent control method of the present application will be further described in detail below in combination with the drawings.

[0037] Figure 1 A step flow chart of the 5G communication base station machine room efficient energy-saving cooling comprehensive intelligent control method provided by the embodiment of the present application is shown in FIG. 1.

[0038] Figure 2 A step flow chart of the adjusted air volume acquisition method provided by the embodiment of the present application is shown in FIG. 4. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical scheme and advantages of the present application more clear, the 5G communication base station machine room efficient energy-saving cooling comprehensive intelligent control method and system proposed by the present application are further described in detail below in combination with the drawings and implementation examples. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs.

[0041] Please refer to Figure 1 A step flow chart of the 5G communication base station machine room efficient energy-saving cooling comprehensive intelligent control method provided by the embodiment of the present application is shown in FIG. 1, which includes the following steps:

[0042] Step 1, when the base station machine room is in the natural cold source cooling mode, the outdoor temperature at the current time, the indoor temperature of each area and the output power of each communication device are acquired; and the base station machine room is tested to acquire the indoor temperature of each area and the output power of each communication device at each time during the test period when each heat exchange fan runs alone.

[0043] With the rapid development of 5G business, the number of servers and network devices in the communication base station machine room is rapidly increasing, and the power density of the communication equipment in the base station machine room is also increasing, which in turn leads to huge energy consumption, which not only means the rise of operating costs, but also has a negative impact on the environment. In the context of global energy conservation and sustainable development, reducing the energy consumption of base station machine room air conditioners is of great significance to reducing carbon emissions and protecting the environment. An efficient air conditioning energy-saving control scheme not only improves the energy utilization efficiency of the base station machine room, but also better responds to the risk of unstable energy supply.

[0044] Secondly, multiple communication devices in the base station machine room will generate a large amount of heat, causing the temperature in the base station machine room to gradually rise. In order to maintain the stability of the operation of the communication equipment, the temperature of the base station machine room needs to be regulated to prevent the communication equipment from overheating, reduce the probability of network failure, and ensure the normal service life of the storage battery.

[0045] Temperature sensors are arranged in different areas of the base station room, and temperature sensors are placed outside the base station room to monitor the indoor temperature of each area and the outdoor temperature in real time.

[0046] The output power of different communication devices in each area is obtained in real time through the equipment management system of the base station room.

[0047] In this embodiment, the base station room is evenly divided into 10 areas, and the time interval for data collection is 30s. As other embodiments, the implementer can set it according to the actual situation.

[0048] Secondly, in this embodiment, there are three cooling modes in the cooling system of the base station room, which are "natural cooling source", "fresh air cooling" and "mechanical cooling". When the outdoor temperature is low, for example, the outdoor temperature is less than or equal to 23℃, the base station room is in natural cooling source cooling mode, which uses the low temperature air existing in the outdoor environment in a specific heat exchange way to take away the heat generated by the communication equipment in the base station room, so as to achieve the purpose of cooling. When the outdoor temperature is greater than 23℃ and less than or equal to 28℃, the base station room is in fresh air cooling cooling mode, which introduces the outdoor air into the room after cooling and filtering, replacing the hot air in the room, so as to achieve the purpose of cooling. When the outdoor temperature is high, for example, the outdoor temperature is greater than 28℃, the traditional compression type air conditioner is started to cool, so that the base station room is in mechanical cooling cooling mode, and the purpose of cooling is achieved.

[0049] When the base station room is in natural cooling source cooling mode, the heat exchange fan will work, and through the rotation of its blade, the outdoor low temperature air will be introduced into the room. Since each heat exchange fan controls different air ducts, and the communication equipment at the outlet of different air ducts is different, that is, the communication equipment in different areas is affected by the same heat exchange fan. Therefore, in order to evaluate the temperature cooling effect of each heat exchange fan on different areas, the cooling situation in the room is tested when a single heat exchange fan runs alone, which is:

[0050] The average of the rated maximum air volume and the rated minimum air volume of the heat exchange fan is calculated as the average air volume.

[0051] It should be noted that the rated maximum air volume and the rated minimum air volume of the heat exchange fan are obtained from the technical specification of the heat exchange fan.

[0052] When the base station room is in natural cooling source cooling mode, each heat exchange fan runs alone at the average air volume, and the output power of each communication device in each area at each time during the test period is collected, as well as the indoor temperature of each area at each time during the test period.

[0053] The test period is the period between the start of the heat exchange fan and the first time when the indoor temperature is equal at multiple continuous time points.

[0054] In this embodiment, the first time when the indoor temperature is equal at multiple continuous time points within 5 minutes is selected as the characteristic time point of each region. In other embodiments, the implementer can set it according to the actual situation, and this embodiment does not make special restrictions.

[0055] When each heat exchange fan is operated alone, the indoor temperature of each region at the last time point in the test period is recorded as the thermal equilibrium temperature.

[0056] It should be noted that when the indoor temperature does not change, it means that the cooling capacity of the natural cold source and the heat emitted by the equipment in the base station room reach thermal equilibrium under the natural cold source cooling mode.

[0057] The collected data is normalized, and in this embodiment, the maximum and minimum normalization method is used for normalization. The maximum and minimum normalization method is a known technology and will not be described here.

[0058] At this point, the outdoor temperature at the current time, the indoor temperature of each region, and the output power of each communication device are obtained. When each heat exchange fan is operated alone, the indoor temperature of each region at each time point in the test period and the output power of each communication device are obtained.

[0059] Step 2, when each heat exchange fan is operated alone, analyze the difference in the rate of change of the indoor temperature between adjacent time points in the test period for each region, and the proximity of the indoor temperature to the highest temperature, determine the temperature conduction value of each region at each time point in the test period, select the time point with the maximum temperature conduction value as the characteristic time point of each region; analyze the length of time from the start of the test to the characteristic time point, and the deviation of the indoor temperature at the last time point in the test period, calculate the temperature deviation degree of each region, combine the output power of the communication equipment in each region and the temperature conduction value at the characteristic time point, determine the heat exchange degree of each heat exchange fan for each region.

[0060] The heat exchange fan efficiently transfers the cooling capacity of the natural cold source to the interior of the machine room through controllable air flow, while minimizing energy consumption. The air volume of the heat exchange fan directly affects the accuracy and efficiency of temperature control of the base station room. When the air volume is too low, the heat exchange efficiency is low, and the potential of the cold source cannot be fully utilized; when the air volume is too high, the energy consumption of the fan increases dramatically, and the energy saving effect is not achieved, and even excessive dust or moisture may be introduced from the outside, affecting the operation stability of the communication equipment in the base station room.

[0061] When there is no natural cold source for cooling, the temperature of the base station machine room will continue to rise. When there is a natural cold source for heat conduction cooling, the heat exchange fan starts to work, and its cooling capacity is relatively low. At this time, the temperature of the machine room is still rising rapidly. When the cooling effect gradually accumulates, the temperature rising rate gradually slows down. At this time, it is indicated that the heat exchange fan starts to conduct heat out. With more cooling capacity of the heat exchange fan, the temperature gradually decreases;

[0062] Since different heat exchange fans have different cooling regulation effects on different areas, and the conduction of heat has a certain hysteresis, by analyzing the temperature change of each area at different times when each heat exchange fan is operated alone, the temperature conduction value is calculated to evaluate the temperature conduction of different areas. Specifically:

[0063] For each heat exchange fan operating alone, the indoor temperature of each area at all times during the test period is curve fitted, and the tangent slope of the fitting curve at each time is calculated.

[0064] In this embodiment, the least square method is used for curve fitting. The least square method and the calculation of the tangent slope are both known technologies, and will not be described here.

[0065] The difference between the tangent slopes of each area at adjacent two times during the test period is calculated, denoted as the relative difference amount, and the relative difference amount is negatively mapped.

[0066] In this embodiment, the difference between the tangent slopes of each area at each time and the previous time during the test period is calculated, denoted as the relative difference amount. The specific process of negative mapping is: using an exponential function for negative mapping, assuming that the relative difference amount is denoted as , the result of is taken as the result of negative mapping, wherein is an exponential function with a natural constant as the base.

[0067] Obtain the maximum value of the indoor temperature of each area at all times during the test period;

[0068] Calculate the relative change rate between the maximum value and the indoor temperature at each time in each area;

[0069] In this embodiment, the calculation of the relative change rate is a known technology, which will not be described here. The calculation formula of the relative change rate is: , wherein is the maximum value, is the indoor temperature at time.

[0070] calculating a ratio of the result of the negative mapping and the relative change rate as a temperature conduction value of each area at each time point in the test period when each heat exchange fan runs alone;

[0071] It should be noted that the tangent slope is a positive number and the greater the value, the faster the rate of indoor temperature growth. The obtained relative difference amount is a negative number and the greater the absolute value, the greater the result of the negative mapping, indicating that the rate of indoor temperature growth between the adjacent two time points gradually slows down. The smaller the relative change rate, the closer the indoor temperature is to the maximum indoor temperature. The greater the temperature conduction value, the more likely the heat emitted by the communication equipment in the area starts to be conducted out.

[0072] Further, based on the temperature conduction value, all time points in the test period are screened to select a characteristic time point, specifically:

[0073] When each heat exchange fan runs alone, a time point corresponding to the maximum temperature conduction value of each area in the test period is taken as a corresponding characteristic time point of each area.

[0074] It should be noted that if there are multiple maximum temperature conduction values, the time point at which the maximum temperature conduction value first appears is taken as the characteristic time point. Secondly, the time point corresponding to the maximum temperature conduction value, at which the heat exchange fan starts to curb the rising speed of the temperature in the area, reflects that the heat emitted by the communication equipment in the area starts to be conducted out.

[0075] Secondly, since the output power of different communication equipment in the base station room is often different, and most of the electrical energy consumed by the communication equipment is converted into heat, the heat emitted by the communication equipment in different areas is also different. Therefore, the change of the output power in each area and the deviation of the heat balance temperature are analyzed, and the heat exchange degree is calculated, specifically:

[0076] The interval duration between the first time point and the characteristic time point in each area in the test period is counted.

[0077] The ratio of the interval duration and the duration of the test period is calculated as a relative ratio.

[0078] The difference between the corresponding heat balance temperature of each area and the preset working temperature is calculated and positively mapped.

[0079] In this embodiment, the normal working temperature range of the communication equipment in the base station room is 18℃-27℃, and the preset working temperature is the average of the maximum working temperature 27℃ and the minimum working temperature 18℃. As other implementation manners, the implementer can set it according to the actual situation. The specific process of positive mapping is: an exponential function is used for positive mapping, assuming that the difference is denoted as The result of the positive mapping is taken as the result of the positive mapping, wherein, The result of the positive mapping is taken as the result of the positive mapping, wherein, is an exponential function with a natural constant as a base number, and the positive mapping is performed so that the result of the positive mapping is a non-negative number, avoiding a negative value.

[0080] The product of the relative ratio and the result of the positive mapping is taken as the temperature deviation degree of each region;

[0081] It should be noted that the smaller the relative ratio, the faster the cooling capacity of the heat exchange fan can be delivered to the region, the faster the heat exchange fan works, the faster the heat transfer, the smaller the result of the positive mapping, the closer the heat balance of the heat exchange fan to the preset working temperature, the better the cooling capacity of the heat exchange fan to the region, and the smaller the temperature deviation degree, indicating that the heat exchange fan has a fast heat response speed and good cooling efficiency.

[0082] For each heat exchange fan running alone, the average of the output power of each communication device in each region at all times during the test period is calculated, denoted as the average power;

[0083] The cumulative sum of the average power of all communication devices in each region is calculated.

[0084] When each heat exchange fan runs alone, the product of the temperature conduction value of each region at the characteristic time and the cumulative sum is calculated, and the normalized result of the ratio of the product to the temperature deviation degree is taken as the heat exchange degree of each heat exchange fan to each region.

[0085] In this embodiment, the maximum and minimum value normalization method is used to normalize the ratio of the product to the temperature deviation degree of all regions, wherein the maximum and minimum value normalization method is a known technology and will not be described here.

[0086] It should be noted that the larger the cumulative sum, the higher the total heat of the communication devices in the region, indicating that the load of the communication devices in the region is higher; the larger the temperature conduction value, the stronger the intensity of the effective conduction of the cooling capacity under the influence of the heat exchange fan, indicating that the suppression of the temperature rise trend of the region is stronger; the larger the product, the more significant the cooling conduction effect of the heat exchange fan in the region under high load, and the larger the heat exchange degree, indicating that the comprehensive cooling efficiency of the heat exchange fan in this region is higher.

[0087] Thus, the heat exchange degree of each heat exchange fan to each region is obtained.

[0088] Step 3, calculate the heat load degree of each region at the current time according to the difference between the indoor temperature and the outdoor temperature of each region at the current time and the output power of the communication device.

[0089] Further, calculate the heat load degree based on the real-time indoor and outdoor temperature and the output power, specifically:

[0090] Calculate the difference between the indoor temperature and the outdoor temperature of each region at the current time, denoted as the relative temperature difference;

[0091] In this embodiment, the absolute value of the difference between the indoor temperature and the outdoor temperature of each region at the current time is calculated, denoted as the relative temperature difference.

[0092] Calculate the ratio of the indoor temperature and the relative temperature difference of each region at the current time as the heat exchange efficiency ratio of each region at the current time;

[0093] It should be noted that when calculating the ratio, in order to avoid the denominator being 0, a preset value greater than 0 is added to the denominator, and the value range is In this embodiment, the preset value greater than 0 is 0.1, and as an alternative, the implementer can set it according to the actual situation.

[0094] Calculate the sum of the output power of all communication devices in each region at the current time, denoted as the total output power;

[0095] The normalized result of the product of the total output power and the heat exchange efficiency ratio is taken as the heat load degree of each region at the current time;

[0096] In this embodiment, the maximum and minimum value normalization method is used to normalize the product of the total output power and the convective heat transfer coefficient of all regions at the current time, wherein the maximum and minimum value normalization method is a known technology and will not be described here.

[0097] It should be noted that the relative temperature difference reflects the difference between the indoor temperature and the outdoor temperature of each region, the larger the relative temperature difference, the greater the heat exchange potential of the region with the outside world, and vice versa. The higher the indoor temperature, the more heat accumulation in the region at this time, and the larger the heat exchange efficiency ratio, the higher the heat and the weaker the heat dissipation capacity. The larger the total output power, the higher the heat generated by the communication device in high-load operation, the stronger the heat source, and the larger the heat load degree, indicating that the heat load of the region is relatively large, and more cooling capacity is needed to maintain temperature balance.

[0098] At this point, the heat load degree of each region at the current time is obtained.

[0099] Step 4: Based on the heat exchange rate and heat load of each heat exchange fan in the target area, the heat exchange fans are screened to obtain the optimal heat exchange fan for the target area. Then, using the heat load of the target area, the air volume of the optimal heat exchange fan is adjusted to save energy and cool down the base station equipment room.

[0100] Furthermore, since different heat exchange fans have varying cooling effects on different areas within the base station equipment room, heat exchange fans are selected based on their heat exchange efficiency in each area and the current heat load of each area. Specifically:

[0101] Select the region with the highest heat load at the current moment as the target region;

[0102] When each heat exchange fan is running independently, the reciprocal of the difference between the heat exchange degree of each heat exchange fan to the target area and the heat load degree is calculated as the matching degree of each heat exchange fan to the target area;

[0103] In this embodiment, the reciprocal of the absolute value of the difference between the heat exchange degree of the target area and the heat load degree is calculated as the matching degree of each heat exchange fan to the target area.

[0104] Select the heat exchange fan with the highest matching degree and denote it as the optimal heat exchange fan for the target area.

[0105] It should be noted that the target area has the highest heat load, reflecting that the area has the highest heat load at the current moment. The more urgent the cooling demand, the more cooling capacity is needed to maintain temperature balance. The greater the matching degree, the closer the cooling capacity of the heat exchange fan is to the actual needs of the target area, ensuring the highest operating efficiency of the fan. This ensures effective cooling without excessive energy consumption. If a heat exchange fan with a heat exchange degree much greater than the heat load is selected, although the temperature can be reduced quickly, it will cause the heat exchange fan to operate in a high-energy-consumption mode, wasting a lot of energy and failing to achieve the goal of high efficiency and energy saving.

[0106] Furthermore, the airflow of the optimal heat exchange fan is adjusted to cool the target area in a timely manner, specifically as follows:

[0107] The formula for calculating the adjusted air volume of the optimal heat exchange fan at the next moment is:

[0108]

[0109] in, For optimal heat exchange fan in The airflow should be adjusted accordingly at all times. For optimal heat exchange fan in The airflow should correspond to the airflow before the adjustment. a thermal load degree of the target area at a current time, a preset first value, a preset second value, wherein the preset first value is less than the preset second value;

[0110] In the embodiment, the preset first value and the preset second value are obtained by collecting data of the target area in a historical period, calculating the thermal load degree of the target area at each time in the historical period, and obtaining the first and second tertiles of the thermal load degree of the target area at all times in the historical period, i.e., arranging the thermal load degree of the target area at all times in the historical period in ascending order, dividing the thermal load degree into three equal parts corresponding to two points, which are the first and second tertiles, respectively, the preset first value is the first tertile, and the preset second value is the second tertile. The tertile is a known technology and will not be described here.

[0111] It should be noted that the optimal heat exchange fan cools the base station room with the adjusted air volume, improves the cooling efficiency in the natural cold source cooling mode, and saves energy efficiency.

[0112] Further, the step flowchart of the method for obtaining the adjusted air volume provided by the embodiment of the application is shown in Figure 2 .

[0113] Based on the same inventive concept as the above method, the embodiment of the application also provides a 5G communication base station room efficient energy-saving cooling comprehensive intelligent control system, which includes a memory, a processor, and a computer program stored in the memory and running on the processor. When the processor executes the computer program, the steps of any one of the methods in the above-mentioned 5G communication base station room efficient energy-saving cooling comprehensive intelligent control method are implemented.

[0114] It should be understood that, although each step in the flowchart is displayed in sequence according to the direction of the arrow, these steps are not necessarily executed in sequence according to the direction of the arrow. Unless otherwise stated herein, the execution of these steps is not strictly limited in sequence, and these steps can be executed in other orders. Moreover, Figure 1 at least part of the steps in the flowchart can include multiple sub-steps or multiple stages, which are not necessarily executed at the same time, but can be executed at different times, and the execution order of these sub-steps or stages is not necessarily sequential, but can be executed in rotation or alternation with other steps or sub-steps or stages of other steps. Figure 1

[0115] ​​Any technical features in the above embodiments can be combined, and for the sake of brevity, not all possible combinations are described above. It should be noted that, as long as there is no conflict, the above technical features can be combined in any manner. The above embodiments merely express several embodiments of the present application, and the description is specific and detailed, but should not be construed as limiting the present application. It should be noted that, for those skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, and therefore, any simple modification, equivalent change and modification made to the above embodiments without departing from the technical solution of the present application, and according to the technical essence of the present application, all fall within the protection scope of the technical solution of the present application.

Claims

1. A high-efficiency energy-saving cooling comprehensive intelligent control method for a 5G communication base station machine room, characterized in that, The method comprises the following steps: When the base station room is in the natural cold source cooling mode, the outdoor temperature at the current time, the indoor temperature of each area and the output power of each communication device are obtained; and the base station room is tested to obtain the indoor temperature of each area at each time during the test period when each heat exchange fan runs alone and the output power of each communication device; When each heat exchange fan runs alone, the difference in the change rate of the indoor temperature between adjacent time periods in the test period and the proximity of the indoor temperature to the maximum value of the indoor temperature at all time periods in the test period are analyzed for each area to determine the temperature conduction value of each area at each time in the test period, and the time period with the maximum temperature conduction value is selected as the characteristic time period corresponding to each area; The length ratio of each area from the start of the test to the characteristic time period and the deviation of the indoor temperature at the last time period in the test period are analyzed to calculate the temperature deviation degree of each area, and the output power of the communication device in each area and the temperature conduction value at the characteristic time period are combined to determine the heat exchange degree of each heat exchange fan for each area; The heat load degree of each area at the current time is calculated based on the difference between the indoor temperature and the outdoor temperature of each area at the current time and the output power of the communication device, and the area with the maximum heat load degree is selected as the target area; Based on the heat exchange degree of each heat exchange fan for the target area and the heat load degree, the heat exchange fan is screened to obtain the optimal heat exchange fan corresponding to the target area, and the air volume of the optimal heat exchange fan is adjusted based on the heat load degree of the target area to achieve energy saving and cooling of the base station room; The determination of the temperature conduction value of each area at each time in the test period comprises: For each area, the indoor temperatures at all time periods in the test period are curve fitted to calculate the tangent slope of the fitted curve at each time; the difference between the tangent slopes of two adjacent time periods is calculated and denoted as the relative difference amount, and the relative difference amount is negatively mapped; The maximum value of the indoor temperature at all time periods in the test period is obtained; and the relative change rate between the maximum value and the indoor temperature at each time is calculated; The temperature conduction value is the ratio of the result of the negative mapping to the relative change rate; The determination of the heat exchange degree of each heat exchange fan for each area comprises: For each heat exchange fan running alone, the average power of each communication device in each area at all time periods in the test period is calculated and denoted as the average power, and the cumulative sum of the average power of all communication devices in each area is calculated; The product of the temperature conduction value of each area at the characteristic time and the cumulative sum is calculated; The heat exchange degree is the normalized result of the ratio of the product to the temperature deviation degree; The calculation of the heat load degree of each area at the current time comprises: The difference between the indoor temperature and the outdoor temperature of each area at the current time is calculated and denoted as the relative temperature difference; The ratio of the indoor temperature of each area at the current time to the relative temperature difference is calculated as the heat exchange efficiency ratio of each area at the current time; The sum of the output power of all communication devices in each area at the current time is calculated and denoted as the total output power; The heat load degree is a normalized result of the product of the total output power and the heat exchange efficiency ratio.

2. The 5G communication base station room efficient energy-saving and cooling comprehensive intelligent control method of claim 1, wherein, When the outdoor temperature is lower than a preset temperature value, a natural cold source exists in the outdoor environment, and the cooling system of the base station room is in a natural cold source cooling mode. 3.The 5G communication base station room efficient energy-saving and cooling comprehensive intelligent control method of claim 1, wherein, The test period is a period from the start of the heat exchange fan to the first time when the indoor temperature is equal at multiple continuous times, wherein the indoor temperature equal at the multiple continuous times is recorded as a thermal equilibrium temperature.

4. The 5G communication base station room efficient energy-saving and cooling comprehensive intelligent control method of claim 3, wherein, The temperature deviation degree of each area is calculated by: The interval length from the first time to the feature time in each area is counted, and the ratio of the interval length to the length of the test period is calculated as a relative ratio; The difference between the thermal equilibrium temperature corresponding to each area and the preset working temperature is calculated and positively mapped; The temperature deviation degree is the product of the relative ratio and the result of the positive mapping.

5. The 5G communication base station room efficient energy-saving and cooling comprehensive intelligent control method of claim 1, wherein, The method for obtaining the optimal heat exchange fan corresponding to the target area is: calculating the inverse of the difference between the heat exchange degree of each heat exchange fan to the target area and the heat load degree as the matching degree of each heat exchange fan to the target area, selecting the heat exchange fan corresponding to the maximum matching degree as the optimal heat exchange fan corresponding to the target area. 6.The 5G communication base station room high-efficiency energy-saving and cooling comprehensive intelligent control method of claim 1, wherein, Optimal heat exchange fan in Adjusted airflow at all times The calculation formula is: ,in, For optimal heat exchange fan in The airflow should correspond to the airflow before the adjustment. For the target region at the current time Heat load, As a preset first value, The second preset value is a value that is less than the first preset value. 7.5G communication base station machine room high-efficiency energy-saving cooling comprehensive intelligent control system, comprising a memory, a processor and a computer program stored in the memory and running on the processor, characterized in that, The processor executes the computer program to realize the steps of the 5G communication base station room efficient energy-saving cooling comprehensive intelligent control method in any one of claims 1-6.

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