Efficient energy-saving cooling comprehensive intelligent control method and system for 5G communication base station machine room

Abstract

The invention relates to the technical field of machine room cooling, in particular to an efficient energy-saving cooling comprehensive intelligent control method and system for a 5G communication base station machine room, and the method comprises the steps: obtaining the indoor temperature of each region at the current moment, the output power of each communication device, and the outdoor temperature at the current moment in real time; obtaining the indoor temperature of each area and the output power of each communication device at each moment in the test time period when each heat exchange fan operates independently; acquiring a temperature conduction value and a characteristic moment; calculating the temperature deviation degree and the heat exchange degree of each area; and the heat load degree of each area at the current moment is calculated, the target area and the corresponding optimal heat exchange fan are selected, the air volume of the optimal heat exchange fan is adjusted, and energy-saving cooling is conducted on the base station machine room. By dynamically adjusting the air volume of the heat exchange fan, the cooling efficiency of the base station room in the natural cold source cooling mode is improved, and meanwhile the 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 uneven distribution of the thermal load of different regions in 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: 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: 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; and 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; 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, and the time point with the maximum temperature conduction value is selected as the characteristic time point of each region; analyzing a time length proportion of each area from a test start to a feature moment, and a deviation of an indoor temperature at a last moment in a test period, calculating a temperature deviation degree of each area, combining an output power of a communication device in each area and a temperature conduction value at the feature moment, determining a heat exchange degree of each heat exchange fan to each area; calculating a heat load degree of each area at a current moment through a difference between the indoor temperature and an outdoor temperature of each area at the current moment and the output power of the communication device, and selecting a region with the largest heat load degree as a target region; selecting the heat exchange fan based on the heat exchange degree of each heat exchange fan to the target region and the heat load degree, obtaining an optimal heat exchange fan corresponding to the target region, and adjusting an air volume of the optimal heat exchange fan by using the heat load degree of the target region to achieve energy saving and cooling of the base station room.

[0006] 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.

[0007] Preferably, the test period is a period from a start of the heat exchange fan to a first moment when the indoor temperature is equal at a plurality of continuous moments, wherein the indoor temperature equal at the plurality of continuous moments is recorded as a thermal equilibrium temperature.

[0008] Preferably, the determination of the temperature conduction value of each area at each moment in the test period comprises: for each area, performing curve fitting on the indoor temperature at all moments in the test period, calculating a tangent slope of the fitting curve at each moment, calculating a difference value between tangent slopes between adjacent two moments, recording the difference value as a relative difference amount, and performing negative mapping on the relative difference amount; obtaining a maximum value of the indoor temperature at all moments in the test period, and calculating a relative change rate between the maximum value and the indoor temperature at each moment; the temperature conduction value is a ratio of the result of the negative mapping and the relative change rate.

[0009] Preferably, the calculation of the temperature deviation degree of each area comprises: statistically analyzing an interval time length from a first moment to a feature moment in the test period of each area, calculating a ratio of the interval time length and a time length of the test period as a relative ratio; calculating a difference value between the thermal equilibrium temperature corresponding to each area and a preset working temperature and performing positive mapping; the temperature deviation degree is a product of the relative ratio and the result of the positive mapping.

[0010] Preferably, the determination of the heat exchange degree of each heat exchange fan to each area comprises: When each heat exchange fan is running independently, calculate the average output power of each communication device in each area at all times during the test period, record it as the average power, and calculate the cumulative sum of the average power of all communication devices in each area; Calculate the product of the temperature conduction value and the accumulated sum at the characteristic moment in each area; The heat exchange degree is a normalized result of the ratio of the product value to the temperature deviation degree.

[0011] Preferably, the calculation of the heat load of each area at the current moment includes: Calculate the difference between the indoor temperature and the outdoor temperature of each area at the current moment, and record it as the relative temperature difference; Calculating the ratio of the indoor temperature of each area at the current moment to the relative temperature difference as the heat exchange efficiency ratio of each area at the current moment; Calculate the sum of the output power of all communication devices in each area at the current moment, and record it as the total output power; The heat load is a normalized result of the product of the total output power and the heat exchange efficiency ratio.

[0012] Preferably, 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 with the largest matching degree, and recording it as the optimal heat exchange fan corresponding to the target area.

[0013] Preferably, the optimal heat exchange fan is Always corresponds to the adjusted air volume The calculation formula is: , in, For optimal heat exchange fans The air volume before adjustment at any time. For the target area at the current moment The heat load, To preset the first value, The preset second value is a value that is smaller than the preset second value.

[0014] On the second aspect, an embodiment of the present application also provides a 5G communication base station room high-efficiency energy-saving and cooling comprehensive intelligent control system, including a memory, a processor, and a computer program stored in the memory and running on the processor. When the processor executes the computer program, it implements any one of the above-mentioned steps of the 5G communication base station room high-efficiency energy-saving and cooling comprehensive intelligent control method.

[0015] The application has at least the following beneficial effects: The application analyzes the change rate of the indoor temperature of each area in the test period when each heat exchange fan is running 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 the 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 screened to select the characteristic time point corresponding to each area, which has the beneficial effect of selecting the key time point when the cooling effect of the heat exchange fan starts to suppress the heat rise in the area, to reflect the situation that the heat emitted 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 for each area is determined, which has the beneficial effect of considering the heat cooling efficiency of each heat exchange fan for 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, which is the area with the most serious heat generation, the most difficult heat dissipation, and the most urgent cooling demand in the entire machine room, which needs more cooling capacity to maintain temperature balance; the heat exchange fan is screened through the heat exchange degree and the heat load degree of each heat exchange fan for the target area, to obtain the optimal heat exchange fan corresponding to the target area, and the air volume of the optimal heat exchange fan is adjusted to save energy and cool the base station room, 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, which improves the cooling efficiency of the base station room under the natural cold source cooling mode while saving energy, avoiding the waste of fan energy caused by excessive supply. BRIEF DESCRIPTION OF DRAWINGS

[0016] The 5G communication base station room efficient energy-saving cooling comprehensive intelligent control method of the application will be further described in detail below with reference to the accompanying drawings.

[0017] Figure 1 The step flow chart of the 5G communication base station room efficient energy-saving cooling comprehensive intelligent control method provided by the embodiment of the application is shown in the figure. Figure 2 The step flow chart of the method for obtaining the adjusted air volume provided by the embodiment of the application is shown in the figure. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the present application clearer, the 5G communication base station 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 examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0019] 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.

[0020] Please refer to Figure 1 which shows the step flow chart of the 5G communication base station room efficient energy-saving cooling comprehensive intelligent control method provided by an embodiment of the present application, which comprises the following steps: Step 1, when the base station room is in 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 and the output power of each communication device at each time during the test period when each heat exchange fan runs alone.

[0021] With the rapid development of 5G business, the number of servers and network devices in the communication base station room is rapidly increasing, and the power density of the communication equipment in the base station 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 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 room, but also better responds to the risk of unstable energy supply.

[0022] Secondly, the operation of multiple communication devices in the base station room will generate a large amount of heat, causing the temperature in the base station room to gradually rise. In order to maintain the stability of the operation of the communication equipment, the temperature in the base station 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 battery.

[0023] Temperature sensors are deployed 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; Through the equipment management system of the base station room, the output power of different communication equipment in each area is obtained in real time; In this embodiment, the base station room is evenly divided into 10 areas, and the time interval for data collection is 30s. As other implementation manners, the implementer can set it according to the actual situation.

[0024] Secondly, in this embodiment, there are three cooling modes in the cooling system of the base station machine room, which are "natural cold source", "fresh air refrigeration" and "mechanical refrigeration". When the outdoor temperature is low, for example, the outdoor temperature is less than or equal to 23℃, the base station machine room is in the natural cold source cooling mode, the low-temperature air naturally existing in the outdoor environment is used to take away the heat generated by the communication equipment in the base station machine room in a specific heat exchange mode, 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 machine room is in the fresh air refrigeration cooling mode, the outdoor air is introduced into the machine room after being cooled and filtered, replacing the hot air in the machine 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 refrigerate, so that the base station machine room is in the mechanical refrigeration cooling mode, and the purpose of cooling is achieved.

[0025] When the base station machine room is in the natural cold source cooling mode, the heat exchange fan will work, and through the rotation of the blades, the airflow will be generated to introduce the low-temperature air in the outdoor into the machine room. Since each heat exchange fan controls different air ducts, and the communication equipment at the air outlet of different air ducts is different, that is, the communication equipment located 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 machine room is tested when a single heat exchange fan is operated alone, specifically: 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. 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.

[0026] When the base station machine room is in the natural cold source cooling mode, each heat exchange fan is operated alone at the average air volume, and the output power of each communication equipment in each area at each time during the test period is collected, and the indoor temperature of each area at each time during the test period is collected. 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 consecutive times. In this embodiment, the first time when the indoor temperature is equal at consecutive times for 5 minutes is selected as the first time when the indoor temperature is equal at consecutive times for 5 minutes. As an alternative, the implementer can set it according to the actual situation, and this embodiment does not make special restrictions.

[0027] When each heat exchange fan is operated alone, the indoor temperature of each area at the last time during the test period is recorded as the thermal equilibrium temperature. 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 generated by the equipment in the base station machine room reach thermal equilibrium under the natural cold source cooling mode.

[0028] The collected data is normalized, and in this embodiment, the maximum and minimum normalization method is used for normalization, which is a known technology and will not be described here.

[0029] At this point, the outdoor temperature at the current time, the indoor temperature of each area, and the output power of each communication device are obtained. When each heat exchange fan operates independently, the indoor temperature of each area at each time during the test period and the output power of each communication device are tested.

[0030] Step 2, when each heat exchange fan operates independently, analyze the difference in the rate of change of indoor temperature between adjacent time periods in each area during the test period, and the proximity of the indoor temperature to the highest temperature, determine the temperature conduction value of each area at each time during the test period, and select the time with the maximum temperature conduction value as the characteristic time of each area. Analyze the length of time from the start of the test to the characteristic time, and the deviation of the indoor temperature at the last time during the test period, calculate the temperature deviation degree of each area, combine the output power of the communication device in each area and the temperature conduction value at the characteristic time, and determine the heat exchange degree of each heat exchange fan for each area.

[0031] The heat exchange fan transfers the cold energy of the natural cold source to the machine room interior 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 in 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 outdoor, affecting the operation stability of the communication equipment in the base station room.

[0032] When there is no natural cooling source, the temperature of the base station room will continue to rise. When the natural cooling source is used 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 rate of temperature rise gradually slows down, indicating that the heat exchange fan has started to conduct heat out. As the heat exchange fan transfers more cold energy, the temperature gradually decreases. Because 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 different areas at different times when each heat exchange fan operates independently, the temperature conduction value is calculated to evaluate the temperature conduction of different areas. Specifically: For each heat exchange fan operating independently, the indoor temperature of each area at all times during the test period is fitted by a curve, and the tangent slope of the fitted curve at each time is calculated. In the embodiment, the least square method is used for curve fitting, and the least square method and the calculation of the tangent slope are known technologies and will not be described here.

[0033] The difference between the tangent slopes of each region between two adjacent time points in the test period is calculated, denoted as a relative difference amount, and the relative difference amount is negatively mapped. In the embodiment, the difference between the tangent slopes of each region between each time point and the previous time point in the test period is calculated, denoted as a relative difference amount. The specific process of negative mapping is: an exponential function is used for negative mapping, and it is assumed that the relative difference amount is denoted as , and the result of is taken as the result of negative mapping, wherein is an exponential function with a natural constant as the base.

[0034] The maximum value of the indoor temperature of each region at all time points in the test period is obtained. The relative change rate between the maximum value and the indoor temperature at each time point in each region is calculated. In the embodiment, the calculation of the relative change rate is a known technology and will not be described here. The calculation formula of the relative change rate is: , wherein is the maximum value, is the indoor temperature at the time point.

[0035] When each heat exchange fan operates alone, the ratio of the result of negative mapping to the relative change rate is calculated as the temperature conduction value of each region at each time point in the test period. It should be noted that the tangent slope is a positive number and the greater the value, the faster the rate of increase of the indoor temperature. The obtained relative difference amount is a negative number and the greater the absolute value, the greater the result of negative mapping, indicating that the rate of increase of the indoor temperature between two adjacent time points gradually slows down. The smaller the relative change rate, the closer the indoor temperature to the maximum indoor temperature at this time, and the greater the temperature conduction value, indicating that the heat exchange fan conducts heat to the region at this time, and the heat emitted by the communication equipment in the region is more likely to be conducted out.

[0036] Further, based on the temperature conduction value, all time points in the test period are screened to select a characteristic time point, specifically: When each heat exchange fan operates alone, the time point corresponding to the maximum temperature conduction value of each region in the test period is taken as the corresponding characteristic time point of each region. ​It should be noted that if there are multiple maximum temperature conduction values, the time of the earliest maximum temperature conduction value is taken as the characteristic time; secondly, the time corresponding to the maximum temperature conduction value, at which time the heat exchange fan starts to suppress the temperature rise in the region, and the heat emitted by the communication equipment in the region starts to be conducted out.

[0037] 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 regions is also different, therefore, the change of the output power in each region and the deviation of the heat balance temperature are analyzed, and the heat exchange degree is calculated, specifically: The interval duration between the first time and the characteristic time in each region during the test period is counted; The ratio of the interval duration to the duration of the test period is calculated as a relative ratio; The difference between the heat balance temperature corresponding to each region and the preset working temperature is calculated and positively mapped; 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 an alternative, the implementer can set it according to the actual situation; the specific process of positive mapping is: using an exponential function for positive mapping, assuming that the difference is denoted as The result of is taken as the result of positive mapping, wherein is an exponential function with natural constant as base number, through the positive mapping process, the result of positive mapping is non-negative, avoiding negative values.

[0038] The product of the relative ratio and the result of positive mapping is taken as the temperature deviation degree of each region; It should be noted that the smaller the relative ratio, the faster the cold of the heat exchange fan can be delivered to the region, reflecting that the heat exchange fan works faster and the heat transfer is faster, the smaller the result of positive mapping, the closer the heat balance of the heat exchange fan to the preset working temperature in the region, reflecting that the cooling capacity of the heat exchange fan in the region is better, and the smaller the temperature deviation degree, the faster the heat response speed and the better the cooling efficiency of the heat exchange fan in the region.

[0039] For each heat exchange fan running alone, the average of the output power of each communication equipment in each region at all times during the test period is calculated, denoted as average power; The cumulative sum of the average power of all communication equipment in each region is calculated; The product of the temperature conduction value and the accumulated sum of each area at the feature time is calculated when each heat exchange fan is operated independently, 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 for each area; 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 areas, which is a known technology and will not be described here.

[0040] It should be noted that the greater the accumulated sum, the higher the total heat of the communication equipment in the area, and the higher the load of the communication equipment in the area; the greater the temperature conduction value, the greater the intensity of the effective conduction of cold under the influence of the heat exchange fan, and the stronger the suppression of the temperature rise trend of the area; the greater the product, the relatively significant conduction effect of the heat exchange fan on the cold in the area under high load, and the greater the obtained heat exchange degree, indicating that the comprehensive cooling efficiency of the heat exchange fan in the area is higher.

[0041] At this point, the heat exchange degree of each heat exchange fan for each area is obtained.

[0042] Step 3, calculate the heat load degree of each area at the current time 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 equipment.

[0043] Further, based on the real-time indoor and outdoor temperatures and the output power, the heat load degree is calculated, specifically: Calculate the difference between the indoor temperature and the outdoor temperature of each area at the current time, denoted as the relative temperature difference; In this embodiment, the absolute value of the difference between the indoor temperature and the outdoor temperature of each area at the current time is calculated, denoted as the relative temperature difference.

[0044] Calculate the ratio of the indoor temperature of each area at the current time to the relative temperature difference as the heat exchange efficiency ratio of each area at the current time; It should be noted that when calculating the ratio, a preset value greater than 0 is added to the denominator to avoid a denominator of 0, 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.

[0045] Calculate the sum of the output power of all communication equipment in each area at the current time, denoted as the total output power; 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 area at the current time; In the embodiment, the product of the output total power and the convective heat transfer coefficient of all regions at the current time is normalized by using the maximum-minimum value normalization method, wherein the maximum-minimum value normalization method is a known technology and will not be described here.

[0046] It should be noted that the relative temperature difference reflects the difference between the indoor temperature and the outdoor temperature in each region. The greater the relative temperature difference, the greater the heat exchange potential between the region and the outside world. Conversely, the greater the heat exchange potential between the region and the outside world. The higher the indoor temperature, the more heat is accumulated in the region at this time. The greater the heat exchange efficiency ratio indicates that the heat in the region is high and the heat dissipation capacity is weak. The greater the output total power indicates that the communication equipment in the region is in high load operation, and the heat generated is high. The greater the heat source, the greater the heat load degree, indicating that the heat load of the region is relatively large, and more cold energy is needed to maintain temperature balance.

[0047] At this point, the heat load degree of each region at the current time is obtained.

[0048] Step 4, based on the heat exchange degree of each heat exchange fan to the target region and the heat load degree, the heat exchange fan is screened, the optimal heat exchange fan corresponding to the target region is obtained, and the air volume of the optimal heat exchange fan is adjusted by using the heat load degree of the target region. Energy-saving cooling of the base station room.

[0049] Further, since different heat exchange fans have different cooling effects on different regions in the base station room, the heat exchange fan is screened by the heat exchange degree of each heat exchange fan to each region and the heat load degree of each region at the current time. Specifically: Select the region with the largest heat load degree at the current time as the target region. When each heat exchange fan is operated alone, the reciprocal of the difference between the heat exchange degree and the heat load degree of each heat exchange fan to the target region is calculated as the matching degree of each heat exchange fan to the target region. In the embodiment, the reciprocal of the absolute value of the difference between the heat exchange degree and the heat load degree of the target region is calculated as the matching degree of each heat exchange fan to the target region.

[0050] Select the heat exchange fan corresponding to the maximum matching degree as the optimal heat exchange fan corresponding to the target region. It should be noted that the target area has the largest heat load, reflecting that the area has the highest heat load at the current moment. The more urgent its cooling demand is, 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 demand of the target area, ensuring the highest operating efficiency of the fan, which can effectively cool down 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 quickly reduced, 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 purpose of high efficiency and energy saving.

[0051] Then, the air volume of the optimal heat exchange fan is adjusted to cool the target area in a timely manner, specifically: The calculation formula for the optimal heat exchange fan's adjusted air volume at the next moment is: in, For optimal heat exchange fans The air volume after adjustment is always corresponding. For optimal heat exchange fans The air volume before adjustment at any time. For the target area at the current moment The heat load, To preset the first value, is a preset second value, wherein the preset first value is smaller than the preset second value; In this embodiment, the first and second values ​​are preset by collecting data of the target area in the historical period and calculating the heat load of the target area at each moment in the historical period to obtain the first tertiary digit and the second tertiary digit of the heat load of the target area at all moments in the historical period. That is, the heat load at all moments in the historical period is arranged in ascending order and divided into three equal parts, corresponding to two points, which are the first tertiary digit and the second tertiary digit, respectively. The first value is the first tertiary digit, and the second value is the second tertiary digit. The tertiary digit is a well-known technique and will not be described in detail here.

[0052] It should be noted that the optimal heat exchange fan cools the base station room with an adjusted air volume, which improves the cooling efficiency in the natural cooling source cooling mode while saving energy.

[0053] Furthermore, the step flow chart of the method for obtaining the adjusted air volume provided in the embodiment of the present application is as follows: Figure 2 shown.

[0054] Based on the same inventive concept as the above method, the embodiments of the present application also provide a 5G communication base station machine 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, wherein the processor executes the computer program to implement the steps of any one of the above 5G communication base station machine room efficient energy-saving cooling comprehensive intelligent control method.

[0055] It should be understood that, although Figure 1 The steps in the flowchart of the above method are displayed in sequence according to the direction of the arrow, but 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 sequences. Moreover, Figure 1 At least part of the steps in the above method 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 sequence of these sub-steps or stages is not necessarily sequential, but can be executed in rotation or alternation with other steps or at least part of the sub-steps or stages of other steps.

[0056] The technical features of the above embodiments can be combined in any way. In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described, but as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application. The above embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as a limitation of the present application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, therefore, any simple modification, equivalent change and modification of the above embodiments within the scope of the technical solution of the present application, according to the technical essence of the present application, all belong to the protection scope of the technical solution of the present application.

Claims

1. 5G communication base station room high-efficiency energy-saving and cooling comprehensive intelligent control method, characterized by: The method comprises the following steps: When the base station room is in natural cooling mode, obtain the current outdoor temperature, the indoor temperature of each area, and the output power of each communication device; and test the base station room to obtain 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 is running alone; When each heat exchange fan is running independently, analyze the difference in the rate of change of the indoor temperature between adjacent moments in the test period in each area, as well as the proximity of the indoor temperature to its highest temperature, to determine the temperature conduction value of each area at each moment in the test period, and select the moment with the maximum temperature conduction value as the characteristic moment corresponding to each area; Analyze the duration of each zone from the start of the test to the characteristic moment, as well as the indoor temperature deviation at the last moment of the test period. Calculate the temperature deviation for each zone. Combined with the output power of the communication equipment in each zone and the temperature conduction value at the characteristic moment, determine the heat exchange degree of each heat exchange fan in each zone. The heat load of each area at the current moment is calculated based on the difference between the indoor and outdoor temperatures of each area at the current moment, as well as the output power of the communication equipment. The area with the largest heat load is selected as the target area. Based on the heat exchange degree and heat load of each heat exchange fan to the target area, the heat exchange fans are screened to obtain the optimal heat exchange fan corresponding to the target area. The heat load of the target area is used to adjust the air volume of the optimal heat exchange fan to save energy and cool the base station room.

2. The 5G communication base station room high-efficiency energy-saving and temperature-reducing integrated intelligent control method according to claim 1, characterized in that: When the outdoor temperature is lower than the preset temperature value, there is a natural cooling source in the outdoor environment, and the cooling system of the base station room is in the natural cooling source cooling mode.

3. The 5G communication base station room high-efficiency energy-saving and cooling comprehensive intelligent control method according to claim 1 is characterized in that: 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 multiple consecutive moments, wherein the indoor temperature that is equal at multiple consecutive moments is recorded as the thermal equilibrium temperature.

4. The 5G communication base station room high-efficiency energy-saving and temperature-reducing integrated intelligent control method according to claim 1, characterized in that: Determining the temperature conduction value of each area at each moment during the test period includes: For each area, curve fitting is performed on the indoor temperature at all times during the test period, and the tangent slope of the fitting curve at each time is calculated; the difference in the tangent slope between two adjacent times is calculated, recorded as the relative difference, and the relative difference is negatively mapped; Obtain the maximum indoor temperature at all times during the test period; calculate the relative rate of change between the maximum value and the indoor temperature at each time; The temperature conduction value is the ratio of the result of the negative mapping to the relative change rate.

5. The 5G communication base station room high-efficiency energy-saving and cooling comprehensive intelligent control method according to claim 3 is characterized in that: The calculation of the temperature deviation of each area includes: Counting the interval duration between the first moment in the test period and the characteristic moment in each area; calculating the ratio of the interval duration to the duration of the test period as a relative comparison; Calculating the difference between the thermal equilibrium temperature corresponding to each region and the preset operating temperature and performing positive mapping; The temperature deviation is a product of the relative ratio and a result of the forward mapping.

6. The 5G communication base station room high-efficiency energy-saving and cooling comprehensive intelligent control method according to claim 1, characterized in that: Determining the heat exchange degree of each heat exchange fan for each area includes: When each heat exchange fan is running independently, calculate the average output power of each communication device in each area at all times during the test period, record it as the average power, and calculate the cumulative sum of the average power of all communication devices in each area; Calculate the product of the temperature conduction value and the accumulated sum at the characteristic moment in each area; The heat exchange degree is a normalized result of the ratio of the product value to the temperature deviation degree.

7. The 5G communication base station room high-efficiency energy-saving and temperature-reducing integrated intelligent control method according to claim 1, characterized in that: The calculation of the heat load of each area at the current moment includes: Calculate the difference between the indoor temperature and the outdoor temperature of each area at the current moment, and record it as the relative temperature difference; Calculating the ratio of the indoor temperature of each area at the current moment to the relative temperature difference as the heat exchange efficiency ratio of each area at the current moment; Calculate the sum of the output power of all communication devices in each area at the current moment, and record it as the total output power; The heat load is a normalized result of the product of the total output power and the heat exchange efficiency ratio.

8. The 5G communication base station room high-efficiency energy-saving and cooling comprehensive intelligent control method according to claim 1, characterized in that: The method for obtaining the optimal heat exchange fan corresponding to the target area is as follows: the inverse 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, and the heat exchange fan with the largest matching degree is selected and recorded as the optimal heat exchange fan corresponding to the target area.

9. The 5G communication base station room high-efficiency energy-saving and cooling comprehensive intelligent control method according to claim 1, characterized in that: Optimal heat exchange fan Always corresponds to the adjusted air volume The calculation formula is: ， in, For optimal heat exchange fans The air volume before adjustment at any time. For the target area at the current moment The heat load, To preset the first value, The preset second value is a value that is smaller than the preset second value. A 10.5G communication base station room high-efficiency energy-saving and cooling integrated intelligent control system includes a memory, a processor, and a computer program stored in the memory and running on the processor, characterized in that: When the processor executes the computer program, the steps of the 5G communication base station room efficient energy-saving and cooling comprehensive intelligent control method as described in any one of claims 1 to 9 are implemented.

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