Air conditioner, control method thereof, computer device and readable storage medium

Abstract

The application provides an air conditioner, a control method thereof, a computer device and a readable storage medium. The control method comprises a local hot spot area elimination step and a peak-valley electricity price coupling control step. If the current period is a peak period or the current period is a flat period, the set temperature is increased, the expected temperature rise at the end of the current electricity price interval is calculated according to the change of the room temperature and / or the temperature of the local hot spot area, and the set temperature is adjusted according to the relationship between the first temperature difference and the expected temperature rise. If the current period is a valley period or the current period is a flat period and the next period is a peak period, the set temperature is decreased. In the process of regulating the temperature of the local hot spot area, the control method can be coupled with the peak-valley electricity price for intelligent regulation of the operating state to realize energy-saving operation and reduce the comprehensive electricity cost.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and more specifically, to an air conditioner and its control method, computer device and readable storage medium. Background Technology

[0002] In special locations such as computer rooms and equipment rooms, due to the unique nature of their operating environment, air conditioners are generally required to run 24 hours a day, 365 days a year, or with two units operating in rotation. However, because the heat generated by the equipment in a computer room may vary, if the air conditioning system in the computer room is kept running all day, equipment located in a corner that is generating significant heat may not be able to receive effective cooling from the air conditioning system, leading to a decrease in the performance of the equipment or even a system crash.

[0003] In addition, electricity, as a high-quality and convenient energy source, accounts for a large proportion of my country's final energy consumption. However, due to the cyclical fluctuations in electricity demand influenced by users' usage habits, the load on the power grid also experiences cyclical peak-valley fluctuations, resulting in insufficient supply during peak hours and surplus during off-peak hours. Energy conservation and consumption reduction in air conditioning, a major electricity consumer, have a significant positive impact on the electricity consumption of businesses and households, and even on the load of the power grid. Summary of the Invention

[0004] The first objective of this invention is to provide a control method for an air conditioner. This control method, in the process of regulating the temperature of local hot spots, can be coupled and controlled with peak and off-peak electricity prices to achieve intelligent regulation of the operating state for energy-saving operation within the peak and off-peak electricity price range, thereby reducing overall electricity costs.

[0005] A second objective of this invention is to provide an air conditioner that implements the above-described control method.

[0006] A third objective of the present invention is to provide a computer device for implementing the above-described control method.

[0007] A fourth objective of this invention is to provide a readable storage medium for implementing the above-described control method.

[0008] To achieve the aforementioned first objective, the present invention provides a control method for an air conditioner, including a local hotspot area elimination step and a peak-valley electricity price coupling control step. The local hotspot area elimination step includes: step S1, if the temperature of the local hotspot area is greater than or equal to a preset temperature threshold, then increasing the indoor fan speed or decreasing the set temperature; the peak-valley electricity price coupling control step includes: step S2, obtaining the initial temperature of the local hotspot area; step S3, if the current time period is a peak period, then increasing the set temperature and calculating the expected peak temperature rise at the end of the current electricity price interval based on the changes in room temperature and / or the temperature of the local hotspot area, and then calculating the expected peak temperature rise based on a first temperature difference and a preset temperature threshold. The system adjusts the set temperature based on the relationship between peak and off-peak temperature rise, where the first temperature difference is the difference between the preset upper limit of room temperature and the current temperature of the local hot spot area; Step S4: If the current period is an off-peak period, the set temperature is lowered; Step S5: If the current period is a normal period, it is determined whether the next period is an off-peak period; Step S6: If the next period is a peak period, the set temperature is lowered; Step S7: If the next period is an off-peak period, the set temperature is raised and the expected normal temperature rise at the end of the current electricity price period is calculated based on the changes in room temperature and / or the temperature of the local hot spot area, and then the set temperature is adjusted based on the relationship between the first temperature difference and the expected normal temperature rise.

[0009] As can be seen from the above scheme, the first step is to eliminate local hotspot areas. By controlling the indoor fan speed and set temperature, the air conditioner can quickly lower the temperature of the local hotspot areas to achieve the goal of rapidly eliminating them. After eliminating the local hotspot areas, the temperature of these areas is coupled and controlled with peak and off-peak electricity prices. Using the local hotspot temperature as a monitoring point, different operating adjustments are made according to different electricity price periods. This allows the air conditioner to store as much cooling as possible during off-peak hours and normal hours with the next peak period, while reducing cooling storage during peak hours and normal hours with the next off-peak period, thereby reducing the overall electricity cost.

[0010] A preferred approach is to set the preset temperature threshold as the difference between the preset upper limit of room temperature and the first preset temperature deviation value.

[0011] Therefore, by adjusting the first preset temperature deviation value, it is possible to ensure timely temperature control of local hot spots and prevent the temperature of local hot spots from becoming too high.

[0012] A preferred embodiment is that, in step S1, increasing the internal fan speed or decreasing the set temperature includes: if the temperature of the local hot spot area is greater than or equal to a preset temperature threshold; then determine whether the internal fan is at a high fan speed; if so, decrease the set temperature at a preset temperature drop rate; if not, increase the internal fan speed at a first rate until the temperature of the local hot spot area is less than the preset temperature threshold, or until the internal fan reaches its maximum speed.

[0013] Therefore, it can be seen that the cooling speed can be increased by increasing the speed of the internal fan, or the indoor ambient temperature can be further reduced by lowering the set temperature, thereby reducing the temperature of local hot spots.

[0014] A further approach is to preset the temperature drop rate to decrease by a first preset temperature every first preset time interval; the first preset time interval is within the range of 1 minute to 20 minutes; the first preset temperature depends on the difference between the temperature of the local hot spot area and the air intake temperature of the evaporator in the indoor unit; when the difference between the temperature of the local hot spot area and the air intake temperature is greater than or equal to the first temperature value and less than the second temperature value, the first preset temperature is T. 设1 When the temperature difference between the local hot spot area and the intake air temperature is greater than or equal to the second temperature value and less than the third temperature value, the first preset temperature is T. 设2 When the temperature difference between the local hot spot area and the intake air temperature is greater than or equal to the third temperature value, the first preset temperature is T. 设3 Where, the first temperature value < the second temperature value < the third temperature value, T 设1 <T 设2 <T 设3 .

[0015] Therefore, when the temperature difference between the local hot spot area and the air intake temperature is greater than or equal to the first temperature value but less than the second temperature value, it indicates that the temperature difference between the local hot spot area and the indoor ambient temperature is small, and the set temperature can be reduced to a smaller extent; when the temperature difference between the local hot spot area and the air intake temperature is greater than or equal to the third temperature value, it indicates that the temperature of the local hot spot area is much higher than the indoor ambient temperature, and the set temperature needs to be reduced to a larger extent.

[0016] A preferred embodiment is that, in step S3, calculating the expected peak temperature rise at the end of the current electricity price range based on the temperature changes of room temperature and / or the local hotspot area, and then adjusting the set temperature according to the relationship between the first temperature difference and the expected peak temperature rise includes: detecting the indoor environment at Δt g Temperature change over time ΔT g Increase the set temperature △t g Calculate T-T0 and T after time. 进风 -T 0进风 Take the two values ​​with the larger difference as the temperature change ΔT g Calculate the expected peak temperature rise T at the end of the current electricity price range. g =t g △T g / △t g , where t g The current electricity price range ends at time T0, where T0 is the initial temperature of the local hotspot area, and T is the current temperature of the local hotspot area.0进风 T represents the initial air inlet temperature of the evaporator in the indoor unit. 进风 The current air intake temperature of the evaporator in the indoor unit; the first temperature difference is ΔT1; if ΔT1 < T g Then wait until the current electricity price range ends at time t. g Let △T1 △t g / △T g When, lower the set temperature T b ℃; if △T1≥T g Then per t g T b / △T1 Time Increase Set Temperature T b ℃.

[0017] Therefore, if the current period is a peak period and needs to last for a relatively long time, the decision to raise the set temperature and the rate of temperature increase should be made based on the rate of change of indoor temperature and the rate of change of temperature in local hot spots, thereby reasonably reducing electricity consumption during peak periods.

[0018] A preferred embodiment is that, in step S4, lowering the set temperature includes: detecting the indoor environment at Δt d Temperature change over time ΔT d Lower the set temperature △t d Calculate T0-T and T after the time interval. 0进风 -T 进风 Take the two values ​​with the larger difference as the temperature change ΔT d Calculate the expected low-temperature drop T at the end of the current electricity price range. d =t d △T d / △t d , where t d The current electricity price range ends at time T0, where T0 is the initial temperature of the local hotspot area, and T is the current temperature of the local hotspot area. 0进风 T represents the initial air inlet temperature of the evaporator in the indoor unit. 进风 The current air intake temperature of the evaporator in the indoor unit; if the second temperature difference ΔT2 ≥ T d Where the second temperature difference ΔT2 is the difference between the temperature of the current local hotspot area and the preset lower limit of room temperature, then the current electricity price range ends at time t. d As the real-time minimum end time t d-min , per t d-min T c / △T2 time decreases the set temperature T c ℃ for cold storage; if ΔT2 < T dThen, with △T2 △t d / △T d As t d-min The time for the low point to end is t. d-min Then, at each t d-min T c / △T2 time decreases the set temperature T c Cooling is carried out at ℃.

[0019] Therefore, if the current period is a low-temperature period, the set temperature is directly reduced. At the same time, the rate of temperature reduction is determined based on the rate of change of indoor temperature and the rate of change of temperature in local hot spots, thereby reasonably increasing the power consumption during the low-temperature period.

[0020] A preferred embodiment is that, in step S6, lowering the set temperature includes: detecting the indoor environment at Δt p1 Temperature change over time ΔT p1 Lower the set temperature △t p1 Calculate T0-T and T after the time interval. 0进风 -T 进风 Take the two values ​​with the larger difference as the temperature change ΔT p1 Calculate the expected temperature drop T at the end of the current electricity price range. p1 =t p1 △T p1 / △t p1 , where t p1 The current electricity price range ends at time T0, where T0 is the initial temperature of the local hotspot area, and T is the current temperature of the local hotspot area. 0进风 T represents the initial air inlet temperature of the evaporator in the indoor unit. 进风 The current intake air temperature of the evaporator in the indoor unit; if the third temperature difference ΔT3 ≥ T p1 Then, the current electricity price range ends at time t. p1 As the real-time minimum end time t p1-min , per t p1-min T e / △T3 time decreases the set temperature T e The temperature is stored at ℃, where the third temperature difference △T3 is the difference between the current temperature of the local hot spot area and the preset temperature value. The preset temperature value is the difference between the preset lower limit of room temperature and the second preset temperature deviation value; if △T3 < T p1 Then, with △T3 △t p1 / △T p1 As t p1-min The usual time period ends at time t. p1-min Then, at each tp1-min T e / △T3 time decreases the set temperature T e Cooling is carried out at ℃.

[0021] Therefore, if the current period is a normal period and the next period is a peak period, the set temperature should be directly reduced to ensure that as much cooling as possible is stored in advance before the peak period arrives. At the same time, the rate of temperature reduction should be determined based on the rate of change of indoor temperature and the rate of change of temperature in local hot spots, so as to reasonably increase the power consumption in the current period.

[0022] A preferred embodiment is that, in step S7, calculating the expected normal temperature rise at the end of the current electricity price range based on the temperature change of room temperature and / or the local hot spot area, and then adjusting the set temperature according to the relationship between the first temperature difference and the expected normal temperature rise includes: detecting the indoor environment at Δt p2 Temperature change over time ΔT p2 Increase the set temperature △t p2 Calculate T-T0 and T after time. 进风 -T 0进风 Take the two values ​​with the larger difference as the temperature change ΔT p2 Calculate the expected average daily temperature rise T at the end of the current electricity price range. p2 =t p2 △T p2 / △t p2 , where t p2 The current electricity price range ends at time T0, where T0 is the initial temperature of the local hotspot area, and T is the current temperature of the local hotspot area. 0进风 T represents the initial air inlet temperature of the evaporator in the indoor unit. 进风 The current air intake temperature of the evaporator in the indoor unit; if ΔT1 < T p2 Then wait until the current electricity price range ends at time t. p2 Let △T1 △t p2 / △T p2 When, lower the set temperature T f ℃; if △T1≥T p2 Then per t p2 T f / △T1 Time Increase Set Temperature T f ℃.

[0023] Therefore, if the current period is a normal period and the next period is a low period, and the current period needs to last for a relatively long time, then the decision to raise the set temperature and the rate of temperature increase should be made based on the rate of change of indoor temperature and the rate of change of temperature in local hot spots, so as to reasonably reduce the electricity consumption in the current period.

[0024] To achieve the second objective mentioned above, the present invention provides an air conditioner, which includes a processor that executes a program stored in a memory to implement the control method of the air conditioner described above.

[0025] To achieve the third objective mentioned above, the present invention provides a computer device including a processor, which executes a program stored in a memory to implement the above-described air conditioner control method.

[0026] To achieve the fourth objective mentioned above, the present invention provides a readable storage medium having a program stored thereon, which, when executed by a processor, implements the aforementioned air conditioner control method. Attached Figure Description

[0027] Figure 1 This is a schematic diagram illustrating the peak and valley time divisions in a certain region.

[0028] Figure 2 This is a flowchart of the local hotspot area elimination step in an embodiment of the control method for the air conditioner of the present invention.

[0029] Figure 3 This is a flowchart of the peak-valley electricity price coupling control steps in an embodiment of the control method for the air conditioner of the present invention.

[0030] Figure 4 This is a flowchart illustrating the current peak period in an embodiment of the control method for the air conditioner of the present invention.

[0031] Figure 5 This is a flowchart illustrating the current time period as an off-peak period in the control method embodiment of the air conditioner of the present invention.

[0032] Figure 6 This is a flowchart illustrating the control method of the air conditioner of the present invention, where the current time period is a normal time period and the next time period is a peak time period.

[0033] Figure 7 This is a flowchart illustrating the control method of the air conditioner of the present invention, where the current time period is a normal time period and the next time period is a low time period.

[0034] The present invention will be further described below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0035] Various exemplary embodiments of the invention will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are in no way intended to limit the invention or its application or use. The invention can be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the invention thorough and complete, and to fully express the scope of the invention to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values ​​set forth in these embodiments should be interpreted as merely exemplary and not as limiting.

[0036] The terms "first," "second," and similar words used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "comprising" mean that the element preceding the word encompasses the element listed after it, without excluding the possibility of encompassing other elements. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0037] In this invention, when a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other devices without an intermediary device, or it may not be directly connected to the other devices but may have an intermediary device.

[0038] All terms used in this invention (including technical or scientific terms) have the same meaning as understood by one of ordinary skill in the art, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having the meaning consistent with their meaning in the context of the relevant art, and not as having an idealized or highly formalized meaning, unless expressly defined herein.

[0039] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0040] Examples of air conditioners and their control methods: See Figures 1 to 3 , Figure 1 This is a diagram showing the peak and off-peak time divisions for a certain region. The current electricity price range can be set via remote control, host computer, or Wi-Fi connection to the Internet.

[0041] Since the heat generated by equipment in a computer room may vary, if the air conditioner in the computer room is kept on all day, equipment located in a corner may become severely overheated, and the indoor unit of the air conditioner may not be able to effectively dissipate heat, causing the equipment to degrade in performance or even crash. Therefore, the invented air conditioner is equipped with a temperature sensor for local hot spots. When the temperature of a local hot spot exceeds the upper limit, the speed of the indoor fan and the set temperature are adjusted to quickly eliminate the local hot spot. In the process, peak and off-peak electricity prices are coupled for linkage control. Using the temperature of the local hot spot as the monitoring point, different operating adjustments are made according to different electricity price periods to achieve the effect of reducing the overall electricity cost.

[0042] Based on preliminary engineering data and experience, the most unfavorable temperature point in the room was identified, i.e., a local hotspot area. A temperature sensor was installed at this location, and the temperature was denoted as T. Since the suitable operating temperature for the equipment in the computer room is 20℃ to 40℃, an upper limit for the indoor ambient temperature of the computer room was set, i.e., a preset upper limit for room temperature T. 上限 Preferably, within the temperature range of 30°C to 40°C, T 上限 The indoor ambient temperature is 35℃, which is the lower limit of the preset room temperature T. 下限 Preferably, within the temperature range of 20°C to 30°C, T 下限 The temperature is 25℃. During air conditioner operation, the temperature T in local hot spots and the air inlet temperature T of the indoor unit's evaporator are continuously monitored. 进风 .

[0043] The air conditioner in this embodiment also includes a processor, which executes a program stored in the memory to implement the following air conditioner control method.

[0044] The control methods for air conditioners include a local hotspot elimination step and a peak-valley electricity price coupling control step.

[0045] like Figure 2 As shown, the steps for eliminating local hotspot areas include: Step S1, if the temperature of the local hotspot area is greater than or equal to a preset temperature threshold, then increase the internal fan speed or decrease the set temperature. The preset temperature threshold is the preset upper limit value of room temperature T. 上限 The difference between the temperature deviation value T1 and the first preset temperature deviation value T1. Optionally, the first preset temperature deviation value T1 is in the range of 0°C to 2°C, and preferably, the first preset temperature deviation value T1 is 0.5°C.

[0046] Step S1 specifically includes: First, execute step S11 to determine whether the temperature of the local hot spot area is greater than or equal to a preset temperature threshold, i.e., T≥T 上限 -T1.

[0047] If so, proceed to step S12 to determine whether the internal fan is at high speed.

[0048] If the internal fan is set to high speed, step S13 is executed to reduce the set temperature at a preset temperature drop rate in order to avoid local overheating, which could cause the equipment in the computer room to malfunction.

[0049] If the internal fan is not at high speed, proceed to step S14, increasing the internal fan speed at a first rate until the temperature in the local hot spot area is lower than the preset temperature threshold, i.e., T < T. 上限 -T1, or until the internal fan reaches its maximum speed.

[0050] The first rate is per t a Time increased by 50 rpm, optional, t a Within the range of 1 to 20 minutes, preferably, t a It lasts for 10 minutes.

[0051] The preset temperature drop rate is every first preset time t b Lower the first preset temperature T a Optionally, the first preset time t b Within the range of 1 minute to 20 minutes, preferably, the first preset time t b It lasts for 10 minutes.

[0052] As shown in Table 1, the first preset temperature T a It depends on the temperature T of the local hot spot area and the air inlet temperature T of the evaporator in the indoor unit. 进风 The difference.

[0053] Table 1 First Preset Temperature T a The value of

[0054] As shown in the table above, when the temperature difference between the local hot spot area and the intake air temperature is greater than or equal to the first temperature value and less than the second temperature value, it indicates that the temperature difference between the local hot spot area and the indoor ambient temperature is small, and the set temperature can be lowered to a smaller extent. In this case, the first preset temperature is T. 设1 When the temperature difference between the local hot spot area and the intake air temperature is greater than or equal to the second temperature value but less than the third temperature value, it indicates that the temperature difference between the local hot spot area and the indoor ambient temperature is slightly higher. In this case, the set temperature can be moderately reduced, and the first preset temperature in this situation is T. 设2 When the temperature difference between the local hot spot area and the intake air temperature is greater than or equal to the third temperature value, it indicates that the temperature in the local hot spot area is much higher than the indoor ambient temperature. In this case, the set temperature needs to be lowered significantly. The first preset temperature in this situation is T. 设3 Where the first temperature value < the second temperature value < the third temperature value, T 设1 <T 设2 <T 设3Preferably, the first temperature value is 0℃, the second temperature value is 3℃, and the third temperature value is 6℃. 设1 At 0.5℃, T 设2 At 1℃, T 设3 It is 2℃.

[0055] like Figure 3 As shown, after the local hotspot area is eliminated, the peak-valley electricity price coupling control step is implemented. Simultaneously, the local hotspot area elimination step must be performed to prevent the temperature in the local hotspot area from exceeding T. 上限 This can lead to performance degradation or even system crashes in the equipment. The peak-valley electricity price coupling and control steps include: Step S2: Obtain the initial temperature T0 of the local hot spot area and the initial air inlet temperature T of the evaporator in the indoor unit. 0进风 .

[0056] Step S3: If the current period is a peak period, increase the set temperature and calculate the expected peak temperature rise at the end of the current electricity price range based on the changes in room temperature and / or the temperature of local hot spots. Then, adjust the set temperature according to the relationship between the first temperature difference ΔT1 and the expected peak temperature rise, where the first temperature difference ΔT1 is the preset upper limit value of room temperature T. 上限 The difference between the temperature T of the current local hotspot area and the temperature T, i.e., ΔT1 = T 上限 -T.

[0057] Step S4: If the current time period is a low-temperature period, lower the set temperature and calculate the expected low-temperature drop at the end of the current electricity price period based on the changes in room temperature and / or the temperature of local hot spots. Then, adjust the set temperature according to the relationship between the second temperature difference ΔT2 and the expected low-temperature drop, where the second temperature difference ΔT2 is the temperature T of the current local hot spot and the preset lower limit of room temperature T. 下限 The difference.

[0058] Step S5: If the current time period is a normal time period, determine whether the next time period is a low time period.

[0059] Step S6: If the next time period is a peak period, lower the set temperature and calculate the expected normal temperature drop at the end of the current electricity price interval based on the changes in room temperature and / or the temperature of local hot spots. Then, adjust the set temperature according to the relationship between the third temperature difference ΔT3 and the expected normal temperature drop, where the third temperature difference ΔT3 is the difference between the current temperature T of the local hot spot and the preset temperature value, and the preset temperature value is the preset lower limit value of room temperature T. 下限 The difference between the second preset temperature deviation value T2 and the value T3, i.e., ΔT3 = T - (T 下限 -T2). Optionally, the third preset temperature deviation value T3 is in the range of 0°C to 5°C, and preferably, the temperature reduction temperature T3 is set to 3°C.

[0060] Step S7: If the next period is a low-temperature period, increase the set temperature and calculate the expected normal temperature rise at the end of the current electricity price period based on the changes in room temperature and / or the temperature of local hot spots. Then, adjust the set temperature according to the relationship between the first temperature difference ΔT1 and the expected normal temperature rise.

[0061] The specific steps of peak-valley electricity price coupling and control include the following: First, execute step S2 to obtain the initial temperature T0 of the local hot spot area and the initial air inlet temperature T of the evaporator in the indoor unit. 0进风 .

[0062] Next, proceed to step S3, see [link to relevant documentation]. Figure 4 In step S3, firstly, step S31 is executed to determine whether the current time period is a peak period.

[0063] If so, proceed to step S32 to increase the set temperature T. b ℃. Optionally, the temperature rise temperature T is set. b Within the range of 0℃ to 2℃, preferably, the temperature rise temperature T is set. b It is 0.5℃.

[0064] Next, step S33 is executed to detect the indoor environment at Δt. g Temperature change over time ΔT g Increase the set temperature △t g Calculate T-T0 and T after time. 进风 -T 0进风 Take the two values ​​with the larger difference as the temperature change ΔT g Calculate the expected peak temperature rise T at the end of the current electricity price range. g =t g △T g / △t g , where t g The current electricity price range ends at time T0, where T0 is the initial temperature of the local hotspot area, and T is the current temperature of the local hotspot area. 0进风 T represents the initial air inlet temperature of the evaporator in the indoor unit. 进风 T represents the current intake air temperature of the evaporator in the indoor unit, and T-T0 represents the temperature change value of the local hot spot area. 进风 -T 0进风 This represents the change in room temperature. Optionally, Δt g Within the range of 1 to 10 minutes, preferably, △t g It lasts for 5 minutes.

[0065] Next, proceed to step S34 to determine whether △T1 < T. g .

[0066] If △T1<T g Then proceed to step S35, waiting for the current electricity price range to end at time t. g Let △T1 △t g / △T g When, lower the set temperature T b ℃, and simultaneously perform hotspot detection to prevent it from exceeding T. 上限 ; If △T1≥T g Then proceed to step S36, with each t g T b / △T1 Time Increase Set Temperature T b Temperatures are monitored at ℃, and hotspot detection is performed simultaneously to prevent them from exceeding T. 上限 .

[0067] Next, see Figure 5 Execute step S4. In step S4, firstly, if the current time period is a low-temperature period, then execute step S41 to lower the set temperature T. c ℃. Optionally, the temperature is set to decrease by temperature T. c Within the range of 0°C to 1°C, preferably, the temperature reduction temperature T is set. c It is 0.5℃.

[0068] Next, step S42 is executed to detect the indoor environment at Δt. d Temperature change over time ΔT d Lower the set temperature △t d Calculate T0-T and T after the time interval. 0进风 -T 进风 Take the two values ​​with the larger difference as the temperature change ΔT d Calculate the expected low-temperature drop T at the end of the current electricity price range. d =t d △T d / △t d , where t d This is the end time of the current electricity price range.

[0069] Next, proceed to step S43 to determine whether △T2≥T is satisfied. d .

[0070] If the second temperature difference ΔT2 ≥ T d Then proceed to step S44, using the current electricity price range end time t. d As the real-time minimum end time t d-min , per t d-min T c / △T2 time decreases the set temperature Tc Cooling is carried out at ℃.

[0071] If △T2<T d Then execute step S45, with △T2 △t d / △T d As t d-min The time for the low point to end is t. d-min Then, at each t d-min T c / △T2 time decreases the set temperature T c Cooling is carried out at ℃.

[0072] Next, proceed to step S5. If the current time period is a normal time period, determine whether the next time period is a low time period.

[0073] Next, see Figure 6 Execute step S6. In step S6, firstly, if the current time period is a normal time period and the next time period is a peak time period, then execute step S61 to lower the set temperature T. e ℃. Optionally, T e Decrease temperature T at the set temperature e Within the range of 0°C to 1°C, preferably, the temperature reduction temperature T is set. e It is 0.5℃.

[0074] Next, step S62 is executed to detect the indoor environment at Δt. p1 Temperature change over time ΔT p1 Lower the set temperature △t p1 Calculate T0-T and T after the time interval. 0进风 -T 进风 Take the two values ​​with the larger difference as the temperature change ΔT p1 Calculate the expected temperature drop T at the end of the current electricity price range. p1 =t p1 △T p1 / △t p1 , where t p1 This is the end time of the current electricity price range.

[0075] Next, proceed to step S63 to determine whether △T3≥T is satisfied. p1 .

[0076] If the third temperature difference ΔT3 ≥ T p1 Then proceed to step S64, using the current electricity price range end time t. p1 As the real-time minimum end time t p1-min , per t p1-min Te / △T3 time decreases the set temperature T e Cooling is carried out at ℃.

[0077] If △T3<T p1 Then execute step S65, with △T3 △t p1 / △T p1 As t p1-min The usual time period ends at time t. p1-min Then, at each t p1-min T e / △T3 time decreases the set temperature T e Cooling is carried out at ℃.

[0078] Next, proceed to step S7, see [link to relevant documentation]. Figure 7 In step S7, firstly, if the current time period is a normal time period and the next time period is a low time period, then step S71 is executed to increase the set temperature T. f ℃. Optionally, the temperature rise temperature T is set. f Preferably, the temperature rise temperature T is set between 0°C and 2°C. f It is 0.5℃.

[0079] Next, step S72 is executed to detect the indoor environment at Δt. p2 Temperature change over time ΔT p2 Increase the set temperature △t p2 Calculate T-T0 and T after time. 进风 -T 0进风 Take the two values ​​with the larger difference as the temperature change ΔT p2 Calculate the expected average daily temperature rise T at the end of the current electricity price range. p2 =t p2 △T p2 / △t p2 , where t p2 This represents the end time of the current electricity price range. Optionally, △t p2 Within the range of 1 to 10 minutes, preferably, △t p2 It lasts for 5 minutes.

[0080] Next, proceed to step S73 to determine whether △T1 < T. p2 .

[0081] If △T1<T p2 Then proceed to step S74, waiting for the current electricity price range to end at time t. p2 Let △T1 △t p2 / △T p2 When, lower the set temperature Tf ℃, and simultaneously perform hotspot detection to prevent it from exceeding T 上限 ; If △T1≥T p2 Then proceed to step S75, with each t p2 T f / △T1 Time Increase Set Temperature T f Temperatures are monitored at ℃, and hotspot detection is performed simultaneously to prevent them from exceeding T. 上限 .

[0082] As can be seen from the above, the first step is to eliminate local hotspot areas. By controlling the indoor fan speed and set temperature, the air conditioner can quickly lower the temperature of the local hotspot areas to achieve the goal of rapidly eliminating them. After eliminating the local hotspot areas, the temperature of these areas is coupled and controlled with peak and off-peak electricity prices. Using the local hotspot temperature as a monitoring point, different operating adjustments are made according to different electricity price periods. This allows the air conditioner to store as much cooling as possible during off-peak hours and normal hours with the next peak period, while reducing cooling storage during peak hours and normal hours with the next off-peak period, thereby reducing the overall electricity cost.

[0083] Computer device embodiment: The computer device of the present invention is a controller, including a processor and a memory, such as a microcontroller containing a central processing unit. Furthermore, the processor executes the computer program stored in the memory to implement the steps of the aforementioned air conditioner control method.

[0084] The processor can be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor can be a microprocessor or any conventional processor.

[0085] The memory can primarily include a program storage area and a data storage area. The program storage area can store the operating system and at least one application program required for a function (such as sound playback, image playback, etc.); the data storage area can store data created based on the use of the phone (such as audio data, phonebook, etc.). Furthermore, the memory can include high-speed random access memory, and can also include non-volatile memory, such as hard disks, RAM, plug-in hard disks, smart media cards (SMC), secure digital cards (SD cards), flash cards, at least one disk storage device, flash memory device, or other volatile solid-state storage devices.

[0086] Examples of computer-readable storage media: The computer-readable storage medium of the present invention can be any form of storage medium that can be read by the processor of a computer device, including but not limited to non-volatile memory, volatile memory, ferroelectric memory, etc. The computer-readable storage medium stores a computer program. When the processor of the computer device reads and executes the computer program stored in the memory, the steps of the above-mentioned air conditioner control method can be implemented.

[0087] Computer programs include computer program code, which can be in the form of source code, object code, executable files, or certain intermediate forms. Computer-readable media can include: any entity or device capable of carrying computer program code, recording media, USB flash drives, portable hard drives, magnetic disks, optical disks, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signals, telecommunication signals, and software distribution media, etc. It should be noted that the content included in computer-readable media can be appropriately added to or subtracted according to the requirements of legislation and patent practice in a jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media do not include electrical carrier signals and telecommunication signals.

[0088] Finally, it should be emphasized that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A control method for an air conditioner, characterized in that... This includes steps to eliminate local hotspots and steps to couple and control peak and valley electricity prices. After the local hotspot area elimination step, the peak-valley electricity price coupling control step is executed, and the local hotspot area elimination step is executed simultaneously with the peak-valley electricity price coupling control step. The local hotspot area elimination step includes: Step S1: If the temperature of the local hot spot area is greater than or equal to the preset temperature threshold, determine whether the indoor fan is at high speed. If so, reduce the set temperature at a preset temperature drop rate. If not, increase the speed of the indoor fan at a first rate until the temperature of the local hot spot area is less than the preset temperature threshold. The local hot spot area is the most unfavorable point for indoor temperature. The peak-valley electricity price coupling and control steps include: Step S2: Obtain the initial temperature of the local hot spot area and / or the initial air inlet temperature of the evaporator in the indoor unit; Step S3: If the current time period is a peak period, the set temperature is increased and the expected peak temperature rise at the end of the current electricity price interval is calculated based on the change in room temperature and / or the temperature of the local hot spot area. Then, the set temperature is adjusted according to the relationship between the first temperature difference and the expected peak temperature rise, wherein the first temperature difference is the difference between the preset upper limit of room temperature and the temperature of the current local hot spot area. Step S4: If the current time period is a low-temperature period, then lower the set temperature; Step S5: If the current time period is a normal time period, determine whether the next time period is a low time period; Step S6: If the next time period is a peak period, then lower the set temperature; Step S7: If the next period is a low-temperature period, the set temperature is increased and the expected normal temperature rise at the end of the current electricity price range is calculated based on the changes in room temperature and / or the temperature of the local hot spot area. Then, the set temperature is adjusted according to the relationship between the first temperature difference and the expected normal temperature rise.

2. The control method for an air conditioner according to claim 1, characterized in that: The preset temperature threshold is the difference between the preset room temperature upper limit and the first preset temperature deviation value.

3. The control method for an air conditioner according to claim 1, characterized in that: The preset temperature drop rate is the decrease of a first preset temperature every first preset time interval; The first preset time is in the range of 1 minute to 20 minutes; The first preset temperature depends on the difference between the temperature of the local hot spot area and the air intake temperature of the evaporator in the indoor unit; When the difference between the temperature of the local hot spot area and the inlet air temperature is greater than or equal to a first temperature value and less than a second temperature value, the first preset temperature is T. 设1 ; When the difference between the temperature of the local hot spot area and the inlet air temperature is greater than or equal to the second temperature value and less than the third temperature value, the first preset temperature is T. 设2 ; When the difference between the temperature of the local hot spot area and the air inlet temperature is greater than or equal to the third temperature value, the first preset temperature is T. 设3 ; Where, the first temperature value < the second temperature value < the third temperature value, T 设1 <T 设2 <T 设3 .

4. The control method for an air conditioner according to any one of claims 1 to 3, characterized in that: In step S3, calculating the expected peak temperature rise at the end of the current electricity price range based on the temperature change of room temperature and / or the local hot spot area, and then adjusting the set temperature based on the relationship between the first temperature difference and the expected peak temperature rise includes: Detecting the indoor environment at △t g Temperature change over time ΔT g Increase the set temperature △t g Calculate T-T0 and T after time. 进风 -T 0进风 Take the two values ​​with the larger difference as the temperature change ΔT g Calculate the expected peak temperature rise T at the end of the current electricity price range. g =t g △T g / △t g , where t g The current electricity price range ends at time T0, where T0 is the initial temperature of the local hotspot area, and T is the current temperature of the local hotspot area. 0进风 T represents the initial air inlet temperature of the evaporator in the indoor unit. 进风 This refers to the current air intake temperature of the evaporator in the indoor unit; The first temperature difference is ΔT1; If △T1<T g Then wait until the current electricity price range ends at time t. g Let △T1 △t g / △T g When, lower the set temperature T b ℃; If △T1≥T g Then per t g T b / △T1 Time Increase Set Temperature T b ℃.

5. The control method for an air conditioner according to any one of claims 1 to 3, characterized in that: In step S4, lowering the set temperature includes: Detecting the indoor environment at △t d Temperature change over time ΔT d Lower the set temperature △t d Calculate T0-T and T after the time interval. 0进风 -T 进风 Take the two values ​​with the larger difference as the temperature change ΔT d Calculate the expected low-temperature drop T at the end of the current electricity price range. d =t d △T d / △t d , where t d The current electricity price range ends at time T0, where T0 is the initial temperature of the local hotspot area, and T is the current temperature of the local hotspot area. 0进风 T represents the initial air inlet temperature of the evaporator in the indoor unit. 进风 This refers to the current air intake temperature of the evaporator in the indoor unit; If the second temperature difference ΔT2 ≥ T d Then, the current electricity price range ends at time t. d As the real-time minimum end time t d-min , per t d-min T c / △T2 time decreases the set temperature T c The temperature is stored at ℃, where the second temperature difference △T2 is the difference between the temperature of the current local hot spot area and the preset lower limit of the room temperature; If △T2<T d Then, with △T2 △t d / △T d As t d-min The time for the low point to end is t. d-min Then, at each t d-min T c / △T2 time decreases the set temperature T c Cooling is carried out at ℃.

6. The control method for an air conditioner according to any one of claims 1 to 3, characterized in that: In step S6, lowering the set temperature includes: Detecting the indoor environment at △t p1 Temperature change over time ΔT p1 Lower the set temperature △t p1 Calculate T0-T and T after the time interval. 0进风 -T 进风 Take the two values ​​with the larger difference as the temperature change ΔT p1 Calculate the expected temperature drop T at the end of the current electricity price range. p1 =t p1 △T p1 / △t p1 , where t p1 The current electricity price range ends at time T0, where T0 is the initial temperature of the local hotspot area, and T is the current temperature of the local hotspot area. 0进风 T represents the initial air inlet temperature of the evaporator in the indoor unit. 进风 This refers to the current air intake temperature of the evaporator in the indoor unit; If the third temperature difference ΔT3 ≥ T p1 Then, the current electricity price range ends at time t. p1 As the real-time minimum end time t p1-min , per t p1-min T e / △T3 time decreases the set temperature T e The temperature is stored at ℃, where the third temperature difference △T3 is the difference between the temperature of the current local hot spot area and the preset temperature value. The preset temperature value is the difference between the preset room temperature lower limit value and the second preset temperature deviation value. If △T3<T p1 Then, with △T3 △t p1 / △T p1 As t p1-min The usual time period ends at time t. p1-min Then, at each t p1-min T e / △T3 time decreases the set temperature T e Cooling is carried out at ℃.

7. The control method for an air conditioner according to any one of claims 1 to 3, characterized in that: In step S7, calculating the expected normal temperature rise at the end of the current electricity price range based on the temperature change of room temperature and / or the local hot spot area, and then adjusting the set temperature according to the relationship between the first temperature difference and the expected normal temperature rise includes: Detecting the indoor environment at △t p2 Temperature change over time ΔT p2 Increase the set temperature △t p2 Calculate T-T0 and T after time. 进风 -T 0进风 Take the two values ​​with the larger difference as the temperature change ΔT p2 Calculate the expected average daily temperature rise T at the end of the current electricity price range. p2 =t p2 △T p2 / △t p2 , where t p2 The current electricity price range ends at time T0, where T0 is the initial temperature of the local hotspot area, and T is the current temperature of the local hotspot area. 0进风 T represents the initial air inlet temperature of the evaporator in the indoor unit. 进风 This refers to the current air intake temperature of the evaporator in the indoor unit; The first temperature difference is ΔT1; If △T1<T p2 Then wait until the current electricity price range ends at time t. p2 Let △T1 △t p2 / △T p2 When, lower the set temperature T f ℃; If △T1≥T p2 Then per t p2 T f / △T1 Time Increase Set Temperature T f ℃.

8. An air conditioner, characterized in that: The air conditioner includes a processor that executes a program stored in a memory to implement the control method of the air conditioner as described in any one of claims 1 to 7.

9. A computer device, characterized in that: The computer device includes a processor that executes a program stored in a memory to implement the control method of the air conditioner as described in any one of claims 1 to 7.

10. A readable storage medium having a program stored thereon, characterized in that: When the program is executed by the processor, it implements the control method of the air conditioner as described in any one of claims 1 to 7.

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