WO2018014634A1 - 空调风量自补偿控制方法、控制系统和空调 - Google Patents

空调风量自补偿控制方法、控制系统和空调 Download PDF

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WO2018014634A1
WO2018014634A1 PCT/CN2017/084018 CN2017084018W WO2018014634A1 WO 2018014634 A1 WO2018014634 A1 WO 2018014634A1 CN 2017084018 W CN2017084018 W CN 2017084018W WO 2018014634 A1 WO2018014634 A1 WO 2018014634A1
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Prior art keywords
air
speed
fan
current
degree
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PCT/CN2017/084018
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English (en)
French (fr)
Inventor
袁光
苏立志
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广东美的制冷设备有限公司
美的集团股份有限公司
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Priority claimed from CN201610581565.2A external-priority patent/CN106196530B/zh
Priority claimed from CN201610580107.7A external-priority patent/CN106091291B/zh
Application filed by 广东美的制冷设备有限公司, 美的集团股份有限公司 filed Critical 广东美的制冷设备有限公司
Publication of WO2018014634A1 publication Critical patent/WO2018014634A1/zh

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  • the invention relates to the field of home appliance control, in particular to an air conditioning air volume self-compensation control method, a control system and an air conditioner.
  • Refrigeration and heating capacity is one of the most important indicators of air conditioning, and air supply air volume is one of the important factors affecting refrigeration and heating capacity. If the evaporator is cooled or the heating temperature is already low or high, but the air flow through the evaporator is not enough, the heat cannot be taken away in time, which not only reduces the capacity of the air conditioner, but also deteriorates the cooling and heating effects, and the user experience becomes Poor, more serious, can cause damage to the air conditioning device or trigger a protection mechanism to stop operation.
  • the air supply volume of the air conditioner is proportional to the fan speed. Therefore, the traditional air conditioner control system adjusts the fan speed to regulate the air supply volume, so as to maintain coordination with the compressor operating frequency and the evaporator temperature, thereby achieving refrigeration and heating performance. optimal.
  • the corresponding relationship between the fan speed and the air supply volume of this method is the empirical value when the air conditioning duct is unblocked, and the air passage caused by the dust filter is not considered to be unsmooth. With the operation of the air conditioner, the dust attached to the dust filter net will accumulate and the ventilation resistance will become larger and larger.
  • the invention provides an air conditioning air volume self-compensation control method, a control system and an air conditioner, which solve the above technical problems of the prior art.
  • a method for controlling air conditioning air volume self-compensation includes the following steps:
  • Step 1 Obtain the current dirty plugging degree of the air filter dust filter
  • Step 2 Obtain a corresponding fan speed compensation amount according to the current dirty plugging degree
  • Step 3 obtaining the target rotational speed of the fan according to the fan speed compensation amount
  • step 4 the fan operation is controlled according to the target speed of the fan.
  • an air conditioning air volume self-compensation control system including a dirty block degree acquisition module, a speed compensation amount acquisition module, a target speed acquisition module, and a control module.
  • the dirty blocking degree acquiring module is configured to acquire a current dirty blocking degree of the air conditioning dust filter
  • the speed compensation amount acquisition module is configured to acquire a corresponding wind turbine speed compensation amount according to a current dirty plugging degree
  • the target rotational speed obtaining module is configured to obtain a target rotational speed of the wind turbine according to the wind turbine speed compensation amount
  • the control module is configured to control fan operation according to a target speed of the fan.
  • the present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program, characterized in that the program is implemented by a processor to implement the above-described air conditioning air volume self-compensation control method.
  • the present invention also provides an air conditioner including the air conditioning air volume self-compensation control system.
  • the invention has the beneficial effects that the invention detects the dirty plugging degree of the air filter dust net and compensates the wind speed of the fan according to the degree of dirty plugging, so that the air outlet volume of the air conditioner is not lowered before the dirty plugging, and the air conditioner is ensured.
  • the air volume required by the system can still be output, which not only improves the refrigeration, heating effect and user comfort of the air conditioner, but also is more energy-saving and environmentally friendly.
  • FIG. 1A is a schematic flow chart of a method for controlling air volume self-compensation of an air conditioner according to an embodiment of the present invention
  • FIG. 1B is a schematic flow chart of a method for controlling air volume self-compensation of an air conditioner according to another embodiment of the present invention
  • FIG. 2 is a graph showing a stepless compensation curve of a rotational speed according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of an air conditioning air volume self-compensation control system according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of an air conditioner according to an embodiment of the present invention.
  • FIG. 1A is a schematic flowchart diagram of a self-compensation control method for an air-conditioning air volume according to an embodiment of the present invention. The method includes the following steps:
  • Step 1 Obtain the current dirty plugging degree of the air filter dust filter
  • Step 2 Obtain a corresponding fan speed compensation amount according to the current dirty plugging degree
  • Step 3 obtaining the target rotational speed of the fan according to the fan speed compensation amount
  • step 4 the fan operation is controlled according to the target speed of the fan.
  • step 1 of the embodiment the degree of dirty plugging of different air conditioner dust screens is represented by 100 values of 1%, 2%, ... 100%. Of course, in other embodiments, other values may be selected to represent The degree of dirty plugging of the air filter dust filter does not affect the technical effect of the present invention.
  • obtaining the current dirty plugging degree of the air conditioning filter network includes the following steps:
  • the current parameter value is collected, and the corresponding relationship table is queried, and the current dirty blocking degree corresponding to the current parameter value is obtained.
  • the parameter setting step and the corresponding relationship table establishing step are all set according to specific experimental data before the air conditioner leaves the factory.
  • the current parameter value is directly collected, and the preset correspondence table is queried. You can get the current dirty block level corresponding to the current parameter value.
  • the parameters include the air volume, the operating time of the air conditioner, the operating power of the fan, the pressure difference between the two sides of the dust filter, the photocurrent value of the infrared light or visible light passing through the filter net on the photosensitive element or the resistance in series with the photosensitive element. The voltage value at the end. The longer the air conditioner is running, the higher the dirtyness of the dust filter. The dirty plugging of the dust filter will affect the air circulation. Therefore, the dust filter is dirty.
  • the dirty plugging degree of the air filter dust filter can be determined by detecting the above parameters.
  • the value of the photocurrent formed on the photosensitive element by infrared light or visible light passing through the dust filter can also be used to determine the degree of dirty plugging of the air filter dust filter.
  • the method uses a single-chip computer to control the illumination of the illumination device, and the infrared light or the visible light penetrates the air filter dust net and then irradiates the photosensitive element disposed on the other side of the air filter dust filter, such as a photodiode or a phototransistor, and the photosensitive element converts the optical signal into Electrical signal and produce photocurrent. If dust or the like adheres to the air filter dust net, the infrared light that is irradiated onto the dust filter net is reflected, scattered, and absorbed. Therefore, the dust filter net is blocked to a higher degree, and the light that passes through the filter dust net to the photosensitive member is less. The smaller the photocurrent generated.
  • the degree of dirty plugging of the dust filter can be known by collecting the photocurrent generated by the photosensitive element or by collecting the voltage across the resistor in series with the photosensitive element. This method of judgment is low in cost, easy to implement, and has high versatility and high accuracy.
  • a correspondence table between the parameter and different dirty blocking degrees is preset, and by querying the corresponding relationship table, the current dirty blocking degree corresponding to the current parameter value can be obtained, and the method is simple and can be obtained quickly.
  • the current dirty block results.
  • the following method can also be used to obtain the current dirty degree of the air filter dust filter, specifically:
  • the current parameter value is collected, and the normalized blocking method is used to obtain the current dirty blocking degree corresponding to the current parameter value.
  • the degree of dirty plugging corresponding to the photocurrent value of the collected photosensitive element is set to 0%.
  • the photocurrent value of the collected photosensor corresponds to The degree of dirty plugging is set to 100%, and the remaining dirty plugging value is a linear aliquot conversion corresponding to the measured photocurrent value of the photosensitive element at the data difference between the two ends, that is, linearization by the min-max normalization method. Change, the corresponding dust filter network dirty block degree is treated as a value between 0% and 100%.
  • the parameter setting process for determining the degree of dirty plugging of the air filter dust filter, the setting process of the two end values as the reference value, and the acquisition process of the parameter range corresponding to each of the one hundred levels All of them are obtained through experimental tests before the air conditioner leaves the factory.
  • the data can be directly used.
  • other criteria may be selected to define the two-end values, and other manners to obtain the parameter ranges corresponding to each level are within the protection scope of the present invention.
  • the step 2 adopts a hierarchical compensation manner, specifically:
  • mapping table Query the mapping table to obtain the wind turbine speed compensation amount corresponding to the current dirty blocking degree.
  • the dirty plugging degree of the air conditioning filter net is divided into five grades, and the dirty plugging degree range of the air conditioner dust filter in the level 1 is 1% to 20%, and the dirty plugging degree range of the air conditioner dust filter in the grade 2 is 21% ⁇ 40%, the dirty plugging degree of air conditioner dust filter in level 3 is 41% ⁇ 60%, and the dirty plugging degree of air conditioner dust filter in level 4 is 61% ⁇ 80%, dirty in air conditioner dust filter of level 5
  • the degree of blockage ranges from 81% to 100%.
  • the compensation value of the table speed is ⁇ n3.
  • the level division and the mapping table are all set according to specific experimental data before the air conditioner leaves the factory.
  • the user directly according to the current dirty blocking degree of the dust filter network, and queries the preset correspondence table mapping.
  • the table can obtain the fan speed compensation amount corresponding to the current dirty block degree.
  • the stepless compensation method may also be adopted, and the dust filter net is not graded, but the curve of the required speed compensation amount under different dirty plug conditions is fitted to the maximum extent, and the corresponding dirty is calculated by the expression of the curve.
  • the amount of speed compensation for the degree of blocking is specifically as follows:
  • the current dirty plugging degree is substituted into the calculation formula of the fan speed compensation amount corresponding to the value range, and the wind turbine speed compensation amount corresponding to the current dirty plugging degree is generated.
  • the specific implementation process of the above method is:
  • the fan speed compensation amount calculation curve can be approximated to the segment line form, thereby more accurately calculating the fan speed compensation amount ⁇ n: the fan speed compensation amount
  • the calculation curve is approximated as a m-segment line, m indicates that the degree of dirty plugging of the dust filter is divided into m ranges, and the fan compensation amount corresponding to the degree of dirty blockage in different dirty plugging degrees is calculated by the expression of each straight line.
  • the expressions of the above curve and the segmentation line have been trained and set before the air conditioner leaves the factory, and the user can obtain the corresponding fan speed compensation amount according to the obtained current dirty block degree.
  • FIG. 2 which is a stepless compensation curve of a specific embodiment, the calculation curve of the fan speed compensation amount is approximately a 5-segment straight line, specifically:
  • step of obtaining the target speed of the fan in step 3 is specifically as follows:
  • the current fan speed value and the product are summed to obtain a target speed of the fan.
  • step 3 of the embodiment further comprises the steps of: comparing the target speed of the fan and the maximum speed limit of the fan, and if the target speed of the fan is higher than the maximum limit speed of the fan, the fan is The target speed is modified to the maximum speed limit of the fan. If it is less than or equal to the maximum limit speed of the fan, the control of step 4 is performed according to the calculated target speed of the fan.
  • two conditions are defined for the current operating mode of the air conditioner, namely an automatic control mode, that is, the air conditioning system automatically calculates the rotational speed according to the current running condition of the air conditioner; and a user control mode, that is, the user sets the wind speed through the remote controller, and the system Run the corresponding speed value.
  • the coefficient K takes a value of 1.
  • the coefficient K ranges from 1 to 1.5; when the air-conditioning wind speed is the user control mode When the speed set by the user is greater than the automatic speed calculated by the air conditioning system according to the current air conditioning operation, the coefficient K ranges from 0.1 to 0.5; when the air conditioning wind speed is in the user control mode, and the user sets Speed equals
  • the coefficient K has a value of 1.
  • FIG. 1B is a schematic flowchart diagram of a self-compensation control method for an air-conditioning air volume according to another embodiment of the present invention, where the method includes the following steps:
  • Step 11 Obtain a current dirty plugging degree of the air filter dust filter
  • Step 21 according to the pre-established calculation formula of the fan speed compensation amount, and obtain the wind turbine speed compensation amount corresponding to the current dirty plugging degree;
  • Step 31 Obtain a target rotational speed of the wind turbine according to the wind speed compensation amount
  • step 41 the fan operation is controlled according to the target speed of the fan.
  • step 11 of the embodiment the degree of dirty plugging of different air conditioner dust screens is represented by 100 values of 1%, 2%, ... 100%. Of course, in other embodiments, other values may be selected to represent The degree of dirty plugging of the air filter dust filter does not affect the technical effect of the present invention.
  • obtaining the current dirty plugging degree of the air conditioning filter network includes the following steps:
  • the current parameter value is collected, and the corresponding relationship table is queried, and the current dirty blocking degree corresponding to the current parameter value is obtained.
  • the parameter setting step and the corresponding relationship table establishing step are all set according to specific experimental data before the air conditioner leaves the factory.
  • the current parameter value is directly collected, and the preset correspondence table is queried. You can get the current dirty block level corresponding to the current parameter value.
  • the parameters include the air volume, the operating time of the air conditioner, the operating power of the fan, the pressure difference between the two sides of the dust filter, the photocurrent value of the infrared light or visible light passing through the filter net on the photosensitive element or the resistance in series with the photosensitive element. The voltage value at the end. The longer the air conditioner is running, the higher the dirtyness of the dust filter. The dirty plugging of the dust filter will affect the air circulation. Therefore, the dust filter is dirty.
  • the dirty plugging degree of the air filter dust filter can be determined by detecting the above parameters.
  • the value of the photocurrent formed on the photosensitive element by infrared light or visible light passing through the dust filter can also be used to determine the degree of dirty plugging of the air filter dust filter.
  • the method uses a single-chip computer to control the illumination of the illumination device, and the infrared light or the visible light penetrates the air filter dust net and then irradiates the photosensitive element disposed on the other side of the air filter dust filter, such as a photodiode or a phototransistor, and the photosensitive element converts the optical signal into Electrical signal and produce photocurrent. If dust or the like adheres to the air filter dust net, the infrared light that is irradiated onto the dust filter net is reflected, scattered, and absorbed. Therefore, the dust filter net is blocked to a higher degree, and the light that passes through the filter dust net to the photosensitive member is less. The smaller the photocurrent generated.
  • the degree of dirty plugging of the dust filter can be known by collecting the photocurrent generated by the photosensitive element or by collecting the voltage across the resistor in series with the photosensitive element. This method of judgment is low in cost, easy to implement, and has high versatility and high accuracy.
  • a correspondence table between the parameter and different dirty blocking degrees is preset, and the corresponding query is performed by querying
  • the relationship table can obtain the current dirty block degree corresponding to the current parameter value, and the method is simple and can quickly obtain the current dirty block degree result.
  • the following method can also be used to obtain the current dirty degree of the air filter dust filter, specifically:
  • the current parameter value is collected, and the normalized blocking method is used to obtain the current dirty blocking degree corresponding to the current parameter value.
  • the degree of dirty plugging corresponding to the photocurrent value of the collected photosensitive element is set to 0%.
  • the photocurrent value of the collected photosensor corresponds to The degree of dirty plugging is set to 100%, and the remaining dirty plugging value is a linear aliquot conversion corresponding to the measured photocurrent value of the photosensitive element at the data difference between the two ends, that is, linearization by the min-max normalization method. Change, the corresponding dust filter network dirty block degree is treated as a value between 0% and 100%.
  • the parameter setting process for determining the degree of dirty plugging of the air filter dust filter, the setting process of the two end values as the reference value, and the obtaining process of the parameter range corresponding to each of the one hundred levels are all in the process of acquiring Before the air conditioner is shipped from the factory, it is obtained through experimental tests.
  • the data can be directly used.
  • other criteria may be selected to define the two-end values, and other manners to obtain the parameter ranges corresponding to each level are within the protection scope of the present invention.
  • the step 21 adopts a stepless compensation method, and does not classify the dust filter net, but maximizes the curve of the required speed compensation amount under different dirty plug conditions, and calculates the corresponding curve by the expression of the curve.
  • the amount of speed compensation for dirty plugging. The method is specifically as follows:
  • the current dirty plugging degree is substituted into the calculation formula of the fan speed compensation amount corresponding to the value range, and the wind turbine speed compensation amount corresponding to the current dirty plugging degree is generated.
  • the specific implementation process of the above method is:
  • the fan speed compensation amount calculation curve can be approximated to the segment line form, thereby more accurately calculating the fan speed compensation amount ⁇ n: the fan speed compensation amount
  • the calculation curve is approximated as a m-segment line, m indicates that the degree of dirty plugging of the dust filter is divided into m ranges, and the fan compensation amount corresponding to the degree of dirty blockage in different dirty plugging degrees is calculated by the expression of each straight line.
  • the expressions of the above curve and the segmentation line have been trained and set before the air conditioner leaves the factory, and the user can obtain the corresponding fan speed compensation amount according to the obtained current dirty block degree.
  • FIG. 2 it is a specific embodiment of the present invention.
  • the speed stepless compensation curve diagram, the fan speed compensation amount calculation curve is approximately a 5-segment straight line, specifically:
  • step of obtaining the target speed of the fan in step 31 is specifically as follows:
  • the current fan speed value and the product are summed to obtain a target speed of the fan.
  • step 31 of the embodiment further comprises the steps of: comparing the target speed of the fan with the maximum speed limit of the fan, and if the target speed of the fan is higher than the maximum limit speed of the fan, the fan is The target speed is modified to the maximum speed limit of the fan. If it is less than or equal to the maximum limit speed of the fan, the control of step 4 is performed according to the calculated target speed of the fan.
  • two conditions are defined for the current operating mode of the air conditioner, namely an automatic control mode, that is, the air conditioning system automatically calculates the rotational speed according to the current running condition of the air conditioner; and a user control mode, that is, the user sets the wind speed through the remote controller, and the system Run the corresponding speed value.
  • the coefficient K takes a value of 1.
  • the coefficient K ranges from 1 to 1.5; when the air-conditioning wind speed is the user control mode When the speed set by the user is greater than the automatic speed calculated by the air conditioning system according to the current air conditioning operation, the coefficient K ranges from 0.1 to 0.5; when the air conditioning wind speed is in the user control mode, and the user sets When the rotational speed is equal to the automatic rotational speed calculated by the air conditioning system according to the current air conditioning operation, the coefficient K has a value of 1.
  • FIG. 3 is a schematic structural diagram of an air conditioning air volume self-compensation control system according to an embodiment of the present invention.
  • the air conditioning air volume self-compensation control system includes a dirty block degree acquisition module, a speed compensation amount acquisition module, and a target speed acquisition module.
  • the dirty block degree acquisition module is configured to obtain a current dirty block degree of the air filter dust filter
  • the speed compensation amount acquisition module is configured to obtain a corresponding fan speed compensation amount according to the current dirty block degree
  • the module is configured to obtain the target speed of the fan according to the fan speed compensation amount
  • the control module is configured to control the fan operation according to the target speed of the fan.
  • the dirty blocking degree obtaining module includes: a first storage unit, configured to store a correspondence table between the pre-established air conditioning dust filter dirty block degree determining parameter and the air conditioning dust filter dirty blocking degree; the first collecting unit, The first query unit is configured to query the corresponding relationship table, and obtain the current dirty congestion level corresponding to the current parameter value.
  • the dirty block degree acquisition module includes: a pre-processing unit configured to preset a parameter for determining a degree of dirty plugging of the air-conditioner dust filter; and a dust filter corresponding to the parameter value when the air conditioner is used for the first time
  • the degree of dirty plugging of the net is set to a first value
  • the dirty plugging degree of the dust filter corresponding to the parameter value after the preset time is set to a second value
  • the second collecting unit is configured to collect the current parameter value; Used to obtain the current dirty block degree corresponding to the current parameter value by using the normalization method.
  • the speed compensation amount acquisition module includes: a second storage unit, configured to store a mapping table of a pre-established air conditioning dust filter and a corresponding fan speed compensation amount; and a second query unit, configured to: Query the mapping table to obtain the wind turbine speed compensation amount corresponding to the current dirty blocking degree.
  • the speed compensation amount acquisition module includes: a third storage unit, configured to store a calculation formula of the fan speed compensation amount corresponding to the dirty air filter dust level of the air conditioning dust filter with different value ranges established in advance; the first calculation unit The formula for calculating the fan speed compensation amount for substituting the current dirty plugging degree into the corresponding value interval, and generating the wind turbine speed compensation amount corresponding to the current dirty plugging degree.
  • the target rotational speed obtaining module includes: a third collecting unit, configured to obtain a current fan speed value; a coefficient acquiring unit, configured to obtain a coefficient K according to a current running condition of the air conditioner; and a second calculating unit, configured to calculate a product of the coefficient K and the fan speed compensation amount; a summing unit for summing the current fan speed value and the product to obtain a target speed of the fan; and a comparing unit for comparing the target speed of the fan and the maximum limit of the fan Speed, if the target speed of the fan is higher than the maximum speed limit of the fan, the target speed of the fan is modified to the maximum speed limit of the fan.
  • the coefficient obtaining unit includes: an air conditioning wind speed operation mode determining unit, configured to determine that the air conditioning wind speed operation mode is an automatic control mode or a user control mode; and a coefficient output unit, configured to when the air conditioning wind speed is in an automatic control mode operation
  • the value of the output coefficient K is 1; when the air-conditioning wind speed is in the user control mode, and the speed set by the user is equal to the automatic speed calculated by the air-conditioning system according to the current air-conditioning operation, the value of the output coefficient K is 1; or when the air conditioner is When the wind speed is running in the user control mode, and the speed set by the user is less than the automatic speed calculated by the air conditioning system according to the current air conditioning operation, the output coefficient K, K ranges from 1 to 1.5; or when the air conditioning wind speed is the user control mode When the running speed is set and the speed set by the user is greater than the automatic speed calculated by the air conditioning system according to the current air conditioning operation, the output coefficient K, K ranges from 0.1 to 0.5.
  • an air conditioning air volume self-compensation control system is provided.
  • a dirty block degree acquisition module configured to acquire a current dirty block degree of the air conditioner filter net; and the speed compensation amount acquisition module is configured to The calculation formula of the wind turbine speed compensation amount is obtained, and the wind turbine speed compensation amount corresponding to the current dirty plugging degree is obtained;
  • the target speed acquiring module is configured to obtain the target speed of the wind turbine according to the wind turbine speed compensation amount;
  • the control module is used according to the target of the wind turbine The speed control fan operates.
  • the dirty blocking degree obtaining module includes: a first storage unit, configured to store a correspondence table between the pre-established air conditioning dust filter dirty block degree determining parameter and the air conditioning dust filter dirty blocking degree; the first collecting unit, The first query unit is configured to query the corresponding relationship table, and obtain the current dirty congestion level corresponding to the current parameter value.
  • the dirty block degree acquisition module includes: a pre-processing unit configured to preset a parameter for determining a degree of dirty plugging of the air-conditioner dust filter; and a dust filter corresponding to the parameter value when the air conditioner is used for the first time
  • the degree of dirty plugging of the net is set to a first value
  • the dirty plugging degree of the dust filter corresponding to the parameter value after the preset time is set to a second value
  • the second collecting unit is configured to collect the current parameter value; Used to obtain the current dirty block degree corresponding to the current parameter value by using the normalization method.
  • the speed compensation amount acquisition module includes: a third storage unit, configured to store a calculation formula of a fan speed compensation amount corresponding to a dirty plugging degree of an air conditioner dust filter with different value ranges established in advance; a first calculating unit, The formula for calculating the fan speed compensation amount for substituting the current dirty plugging degree into the corresponding value interval, and generating the wind turbine speed compensation amount corresponding to the current dirty plugging degree.
  • the target rotational speed obtaining module includes: a third collecting unit, configured to obtain a current fan speed value; a coefficient acquiring unit, configured to obtain a coefficient K according to a current running condition of the air conditioner; and a second calculating unit, configured to calculate a product of the coefficient K and the fan speed compensation amount; a summing unit for summing the current fan speed value and the product to obtain a target speed of the fan; and a comparing unit for comparing the target speed of the fan and the maximum limit of the fan Speed, if the target speed of the fan is higher than the maximum speed limit of the fan, the target speed of the fan is modified to the maximum speed limit of the fan.
  • the coefficient obtaining unit includes: an air conditioning wind speed operation mode determining unit, configured to determine that the air conditioning wind speed operation mode is an automatic control mode or a user control mode; and a coefficient output unit, configured to when the air conditioning wind speed is in an automatic control mode operation
  • the value of the output coefficient K is 1; when the air-conditioning wind speed is in the user control mode, and the speed set by the user is equal to the automatic speed calculated by the air-conditioning system according to the current air-conditioning operation, the value of the output coefficient K is 1; or when the air conditioner is When the wind speed is running in the user control mode, and the speed set by the user is less than the automatic speed calculated by the air conditioning system according to the current air conditioning operation, the output coefficient K, K ranges from 1 to 1.5; or when the air conditioning wind speed is the user control mode When the running speed is set and the speed set by the user is greater than the automatic speed calculated by the air conditioning system according to the current air conditioning operation, the output coefficient K, K ranges from 0.1 to 0.5.
  • FIG. 4 is a schematic structural diagram of an air conditioner according to an embodiment of the present invention, including the air conditioning air volume self-compensation control system described above.
  • the present invention also provides a non-transitory computer readable storage medium having stored thereon a computer program, characterized in that the program is implemented by a processor to implement the above-described air conditioning air volume self-compensation control method.
  • the invention detects the dirty plugging degree of the air filter dust net and compensates the wind speed of the fan according to the degree of dirty plugging, so that the air outlet of the air conditioner does not decrease before the dirty plugging, and the air conditioner can still output under the dust state.
  • the air volume required by the system not only improves the refrigeration, heating effect and user comfort of the air conditioner, but also is more energy-saving and environmentally friendly.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” or “second” may include at least one of the features, either explicitly or implicitly.
  • the meaning of "a plurality" is at least two, such as two, three, etc., unless specifically defined otherwise.

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Abstract

一种空调风量自补偿控制方法、控制系统和空调。方法包括以下步骤：获取空调滤尘网的当前脏堵程度；根据预先建立的风机转速补偿量计算公式，获取当前脏堵程度对应的风机转速补偿量；根据风机转速补偿量获取风机的目标转速；根据风机的目标转速控制风机运行。通过检测空调滤尘网的脏堵程度，根据脏堵程度对风机风速进行相应补偿，从而使空调器的出风量相对脏堵以前不会降低，保证了空调器在积尘状态下仍能输出系统所需的风量，不仅提高了空调的制冷、制热效果和用户的使用舒适性，而且更加节能环保。

Description

空调风量自补偿控制方法、控制系统和空调 技术领域
本发明涉及家电控制领域，特别涉及一种空调风量自补偿控制方法、控制系统和空调。
背景技术
制冷和制热能力是空调最重要的指标之一，而空调的送风量又是影响制冷和制热能力的重要因素之一。如果蒸发器制冷或制热温度已经很低或很高，但是穿过蒸发器的空气流通量不够，不能及时带走热量，不但使空调的能力降低，制冷、制热效果变差，用户体验变差，更严重的，会导致空调器件的损坏或触发保护机制而停止运行。
空调的送风量与风机转速呈正比，故传统的空调控制系统均通过调节风机转速来调控送风量，使之与压缩机运行频率及蒸发器温度保持协调，从而达到制冷、制热性能的最佳。但是，此方法的风机转速与送风量之间的对应关系都是在空调风道畅通时的经验值，并没有考虑滤尘网脏堵导致的风道不畅的情况。随着空调的运行，滤尘网所附着的灰尘会越积越多，通风阻力也就越来越大。在这种情况下相同的风机转速提供的送风量将大大下降，不能满足系统所需，从而使空调没有运行在最佳状态，系统能耗也会升高。即使用户隔一段时间对滤尘网进行清洗，在清洗之前的过程中也会存在同样的问题。
发明内容
本发明提供了一种空调风量自补偿控制方法、控制系统和空调，解决了现有技术的上述技术问题。
本发明解决上述技术问题的技术方案如下：
依据本发明的一个方面，提供了一种空调风量自补偿控制方法，包括以下步骤：
步骤1，获取空调滤尘网的当前脏堵程度；
步骤2，根据当前脏堵程度获取对应的风机转速补偿量；
步骤3，根据风机转速补偿量获取风机的目标转速；
步骤4，根据风机的目标转速控制风机运行。
依据本发明的另一个方面，提供了一种空调风量自补偿控制系统，包括脏堵程度获取模块、转速补偿量获取模块、目标转速获取模块和控制模块，
所述脏堵程度获取模块用于获取空调滤尘网的当前脏堵程度；
所述转速补偿量获取模块用于根据当前脏堵程度获取对应的风机转速补偿量；
所述目标转速获取模块用于根据风机转速补偿量获取风机的目标转速；
所述控制模块用于根据风机的目标转速控制风机运行。
此外，本发明还提供了一种非临时性计算机可读存储介质，其上存储有计算机程序，其特征在于，该程序被处理器执行时实现上述的空调风量自补偿控制方法。
为了解决本发明的技术问题，本发明还提供了一种空调，包括所述空调风量自补偿控制系统。
本发明的有益效果是：本发明通过检测空调滤尘网的脏堵程度，根据脏堵程度对风机风速进行相应补偿，从而使空调器的出风量相对脏堵以前不会降低，保证了空调器在积尘状态下仍能输出系统所需的风量，不仅提高了空调器的制冷、制热效果和用户的使用舒适性，而且更加节能环保。
附图说明
图1A为本发明一个实施例的一种空调风量自补偿控制方法的流程示意图；
图1B为本发明另一个实施例的一种空调风量自补偿控制方法的流程示意图；
图2为本发明一个实施例的转速无级补偿曲线图；
图3为本发明一个实施例提出的一种空调风量自补偿控制系统的结构示意图；
图4为本发明一个实施例提出的一种空调的结构示意图。
具体实施方式
以下结合附图对本发明的原理和特征进行描述，所举实例只用于解释本发明，并非用于限定本发明的范围。
如图1A所示，为本发明一个实施例提出的一种空调风量自补偿控制方法的流程示意图，方法包括以下步骤：
步骤1，获取空调滤尘网的当前脏堵程度；
步骤2，根据当前脏堵程度获取对应的风机转速补偿量；
步骤3，根据风机转速补偿量获取风机的目标转速；
步骤4，根据风机的目标转速控制风机运行。
以下对上述实施例的各步骤进行具体的说明。
本实施例的步骤1中，通过1％、2％、……100％的100个数值来表示不同的空调滤尘网脏堵程度，当然，在其他的实施例中，可以选择其他的数值来表示空调滤尘网的脏堵程度，均不影响本发明的技术效果。本实施例中，获取空调滤尘网的当前脏堵程度包括以下步骤：
设定用于判断空调滤尘网脏堵程度的参数；
预先建立所述参数与空调滤尘网脏堵程度的对应关系表；
采集当前参数值，并查询所述对应关系表，获取当前参数值对应的当前脏堵程度。
本实施例中，参数设定步骤和对应关系表建立步骤在空调出厂前均已根据具体的实验数据设置好，用户在使用空调时，直接采集当前参数值，并查询预设的对应关系表，即可获取当前参数值对应的当前脏堵程度。所述参数包括风量大小、空调运行时长、风机运行功率、滤尘网两侧压差、穿过滤尘网的红外光或可见光在光敏元件上形成的光电流值或与所述光敏元件串联的电阻两端的电压值。空调运行时长越长，滤尘网的脏堵程度越高。因滤尘网的脏堵会影响空气流通，因此滤尘网脏堵程度越高，在维持直流风机转速一定的情况下，风机的运行功率越小。而滤尘网的脏堵程度越高，风量越小，滤尘网两侧压差也更大，因此本实施例中，可以通过检测上述参数，来判断空调滤尘网脏堵程度。在优选的实施例中，还可以采用穿过滤尘网的红外光或可见光在光敏元件上形成的光电流值，来判断空调滤尘网脏堵程度。这种方法采用单片机控制发光装置发光，红外光或者可见光穿透空调滤尘网后照射到设置在空调滤尘网另一侧的光敏元件，比如光电二极管、光电三极管上，光敏元件会将光信号转换为电信号，并产生光电流。若空调滤尘网上附着有灰尘等，会对照射到滤尘网上的红外光进行反射、散射和吸收，因此滤尘网脏堵程度越高，穿过滤尘网照射到光敏元件上的光越少，光敏元件产生的光电流越小。通过采集光敏元件产生的光电流，或者采集与光敏元件串联的电阻两侧的电压，即可获知滤尘网的脏堵程度。这种判断方法成本低廉、易于实施且通用性强、准确度高。
同时，本实施例中预设了所述参数与不同脏堵程度的对应关系表，通过查询所述对应关系表，即可获取当前参数值对应的当前脏堵程度，方法简单且可以迅速得获得当前脏堵程度结果。
在其他实施例中，还可以采用以下方法获得空调滤尘网的当前脏堵程度，具体为：
设定用于判断空调滤尘网脏堵程度的参数；
获取第一次使用空调时的参数值，将其对应的滤尘网脏堵程度设为第一数值；
获取经过预设时间后的参数值，将其对应的滤尘网脏堵程度设为第二数值；
采集当前参数值，并采用归一化方法得到当前参数值对应的当前脏堵程度。
比如空调第一次使用时，采集的光敏元件光电流值对应的脏堵程度设为0％，普通用户正常使用一年且使用期间滤尘网未清洗的情况下，采集的光敏元件光电流值对应的脏堵程度设为100％，其余脏堵程度值为对应测得的光敏元件光电流值在此两端数据差值上做的线性等分换算，即采用min-max归一化方法进行线性变化，将对应的滤尘网脏堵程度处理为0％～100％之间的数值。上述步骤中，用于判断空调滤尘网脏堵程度的参数设定过程、作为参考值的两个端值的设定过程以及一百个等级中每个等级对应的参数范围的获取过程 均是在空调出厂以前，经实验测试得到，用户在使用本发明的方法进行空调风量自动补偿时，可以直接使用这些数据。当然在其他实施例中，可以选择其他的标准来定义两端值，以及其他的方式来获取每个等级对应的参数范围，均在本发明的保护范围之内。
本实施例中，所述步骤2采用分级补偿的方式，具体为：
将空调滤尘网的脏堵程度划分为n个等级；
预先建立每个等级的脏堵程度与对应的风机转速补偿量的映射表；
查询所述映射表，获取当前脏堵程度对应的风机转速补偿量。
本实施例中，将空调滤尘网的脏堵程度平均划分为5个等级，等级1中空调滤尘网的脏堵程度范围为1％～20％，等级2中空调滤尘网的脏堵程度范围为21％～40％，等级3中空调滤尘网的脏堵程度范围为41％～60％，等级4中空调滤尘网的脏堵程度范围为61％～80％，等级5中空调滤尘网的脏堵程度范围为81％～100％。
具体如下表1所示：
表1风机转速补偿表
Figure PCTCN2017084018-appb-000001
当获得的当前滤尘网脏堵程度为45％时，则判断脏堵程度等级为3，查表得转速的补偿值为△n3，例如△n3为180r/min时，则转速补偿值为180r/min，获得风量补偿约为90m3/h(对于35机)。这种方式可以简单快速的获得风机转速补偿量，从而进行后面的计算和控制。本实施例中，所述等级划分和映射表均在空调出厂前根据具体的实验数据设置好，用户在使用空调时，直接根据滤尘网的当前脏堵程度，并查询预设的对应关系表映射表，即可获取当前脏堵程度对应的风机转速补偿量。
在其他实施例中，还可以采用无级补偿的方式，不对滤尘网进行等级划分，而是最大程度的拟合不同脏堵情况下所需转速补偿量的曲线，通过曲线的表达式计算对应脏堵程度的转速补偿量。方法具体为：
将空调滤尘网的脏堵程度划分为m个取值区间；
预先建立与每个取值区间对应的风机转速补偿量计算公式；
将当前脏堵程度代入对应取值区间的风机转速补偿量计算公式，生成当前脏堵程度对应的风机转速补偿量。本实施例中，以上方法的具体实施过程为：
S201，获取不同的脏堵程度所需的风机转速补偿量；
S202，对所述脏堵程度和风机转速补偿量进行训练，生成风机转速补偿量计算曲线， 计算曲线表达式的输入为脏堵程度，输出为风机转速补偿量。考虑到程序运算负担问题，在更加优选的实施例中，可以将风机转速补偿量计算曲线近似化成分段折线形式，从而更精确的计算出风机转速补偿量△n：将所述风机转速补偿量计算曲线近似为m段直线，m表示所述滤尘网脏堵程度划分为m个范围，不同脏堵程度范围内的脏堵程度对应的风机补偿量通过每段直线的表达式进行计算。在具体的实施过程中，上述曲线以及分段直线的表达式在空调出厂前已经训练并设置完成，用户根据获取的当前脏堵程度，即可得到对应的风机转速补偿量。如图2所示，为一个具体实施例的的转速无级补偿曲线图，所述风机转速补偿量计算曲线近似为5段直线，具体为：
①当0％≦d<25％时，△n＝△nd1*d/0.25；
②当25％≦d<40％时，△n＝△nd1+(△nd2-△nd1)*(d-0.25)/0.15；
③当40％≦d<55％时，△n＝△nd2+(△nd3-△nd2)*(d-0.4)/0.15；
④当55％≦d<70％时，△n＝△nd3+(△nd4-△nd3)*(d-0.55)/0.15；
⑤当70％≦d≦100％时，△n＝△nd4+(△nd5-△nd4)*(d-0.7)/0.3。
若△nd1、△nd2、△nd3、△nd4、△nd5取值分别为150、200、240、270和310，当滤尘网当前脏堵程度为45％时，根据式③可计算出转速补偿量△n＝200+(240-200)*(d-0.4)/0.15＝213r/min，进而对转速的补偿为213r/min，获得风量补偿约为106m3/h(对于35机)。
本实施例中，步骤3获取风机目标转速的步骤具体为：
获取当前风机转速值；
根据空调的当前运行情况获取系数K，并计算系数K与所述风机转速补偿量的乘积；
对所述当前风机转速值和所述乘积求和，得到风机的目标转速。
为了避免风机的目标转速超过风机的最大限制转速，本实施例的步骤3还包括以下步骤：比较风机的目标转速和风机最大限制转速，若风机的目标转速高于风机最大限制转速，则将风机的目标转速修改为风机最大限制转速。若小于或等于风机最大限制转速，则还是按照计算出的风机目标转速进行步骤4的控制。
本实施例中，对空调的当前运行模式规定了两种情况，分别为自动控制模式，即空调系统根据空调当前运行情况自动计算转速；以及用户控制模式，即用户通过遥控器设定风速，系统运行对应的转速值。当空调风速为自动控制模式运行时，所述系数K取值为1。
当空调风速为用户控制模式运行，且用户设定的转速小于空调系统根据当前空调运行情况计算出的自动转速时，所述系数K的取值范围为1～1.5；当空调风速为用户控制模式运行，且用户设定的转速大于空调系统根据当前空调运行情况计算出的自动转速时，所述系数K的取值范围为0.1～0.5；当空调风速为用户控制模式运行，且用户设定的转速等于 空调系统根据当前空调运行情况计算出的自动转速时，所述系数K的取值为1。
如图1B所示，为本发明另一个实施例提出的一种空调风量自补偿控制方法的流程示意图，方法包括以下步骤：
步骤11，获取空调滤尘网的当前脏堵程度；
步骤21，根据预先建立的风机转速补偿量计算公式，获取当前脏堵程度对应的风机转速补偿量；
步骤31，根据风机转速补偿量获取风机的目标转速；
步骤41，根据风机的目标转速控制风机运行。
以下对该实施例的各步骤进行具体的说明。
本实施例的步骤11中，通过1％、2％、……100％的100个数值来表示不同的空调滤尘网脏堵程度，当然，在其他的实施例中，可以选择其他的数值来表示空调滤尘网的脏堵程度，均不影响本发明的技术效果。本实施例中，获取空调滤尘网的当前脏堵程度包括以下步骤：
设定用于判断空调滤尘网脏堵程度的参数；
预先建立所述参数与空调滤尘网脏堵程度的对应关系表；
采集当前参数值，并查询所述对应关系表，获取当前参数值对应的当前脏堵程度。
本实施例中，参数设定步骤和对应关系表建立步骤在空调出厂前均已根据具体的实验数据设置好，用户在使用空调时，直接采集当前参数值，并查询预设的对应关系表，即可获取当前参数值对应的当前脏堵程度。所述参数包括风量大小、空调运行时长、风机运行功率、滤尘网两侧压差、穿过滤尘网的红外光或可见光在光敏元件上形成的光电流值或与所述光敏元件串联的电阻两端的电压值。空调运行时长越长，滤尘网的脏堵程度越高。因滤尘网的脏堵会影响空气流通，因此滤尘网脏堵程度越高，在维持直流风机转速一定的情况下，风机的运行功率越小。而滤尘网的脏堵程度越高，风量越小，滤尘网两侧压差也更大，因此本实施例中，可以通过检测上述参数，来判断空调滤尘网脏堵程度。在优选的实施例中，还可以采用穿过滤尘网的红外光或可见光在光敏元件上形成的光电流值，来判断空调滤尘网脏堵程度。这种方法采用单片机控制发光装置发光，红外光或者可见光穿透空调滤尘网后照射到设置在空调滤尘网另一侧的光敏元件，比如光电二极管、光电三极管上，光敏元件会将光信号转换为电信号，并产生光电流。若空调滤尘网上附着有灰尘等，会对照射到滤尘网上的红外光进行反射、散射和吸收，因此滤尘网脏堵程度越高，穿过滤尘网照射到光敏元件上的光越少，光敏元件产生的光电流越小。通过采集光敏元件产生的光电流，或者采集与光敏元件串联的电阻两侧的电压，即可获知滤尘网的脏堵程度。这种判断方法成本低廉、易于实施且通用性强、准确度高。
同时，本实施例中预设了所述参数与不同脏堵程度的对应关系表，通过查询所述对应 关系表，即可获取当前参数值对应的当前脏堵程度，方法简单且可以迅速得获得当前脏堵程度结果。
在其他实施例中，还可以采用以下方法获得空调滤尘网的当前脏堵程度，具体为：
设定用于判断空调滤尘网脏堵程度的参数；
获取第一次使用空调时的所述参数值，将其对应的滤尘网脏堵程度设为第一数值；
获取经过预设时间后的所述参数值，将其对应的滤尘网脏堵程度设为第二数值；
采集当前参数值，并采用归一化方法得到当前参数值对应的当前脏堵程度。
比如空调第一次使用时，采集的光敏元件光电流值对应的脏堵程度设为0％，普通用户正常使用一年且使用期间滤尘网未清洗的情况下，采集的光敏元件光电流值对应的脏堵程度设为100％，其余脏堵程度值为对应测得的光敏元件光电流值在此两端数据差值上做的线性等分换算，即采用min-max归一化方法进行线性变化，将对应的滤尘网脏堵程度处理为0％～100％之间的数值。上述步骤中，用于判断空调滤尘网脏堵程度的参数设定过程、作为参考值的两个端值的设定过程以及一百个等级中每个等级对应的参数范围的获取过程均是在空调出厂以前，经实验测试得到，用户在使用本发明的方法进行空调风量自动补偿时，可以直接使用这些数据。当然在其他实施例中，可以选择其他的标准来定义两端值，以及其他的方式来获取每个等级对应的参数范围，均在本发明的保护范围之内。
本实施例中，所述步骤21采用无级补偿的方式，不对滤尘网进行等级划分，而是最大程度的拟合不同脏堵情况下所需转速补偿量的曲线，通过曲线的表达式计算对应脏堵程度的转速补偿量。方法具体为：
将空调滤尘网的脏堵程度划分为m个取值区间；
预先建立与每个取值区间对应的风机转速补偿量计算公式；
将当前脏堵程度代入对应取值区间的风机转速补偿量计算公式，生成当前脏堵程度对应的风机转速补偿量。本实施例中，以上方法的具体实施过程为：
S301，获取不同的脏堵程度所需的风机转速补偿量；
S302，对所述脏堵程度和风机转速补偿量进行训练，生成风机转速补偿量计算曲线，计算曲线表达式的输入为脏堵程度，输出为风机转速补偿量。
考虑到程序运算负担问题，在更加优选的实施例中，可以将风机转速补偿量计算曲线近似化成分段折线形式，从而更精确的计算出风机转速补偿量△n：将所述风机转速补偿量计算曲线近似为m段直线，m表示所述滤尘网脏堵程度划分为m个范围，不同脏堵程度范围内的脏堵程度对应的风机补偿量通过每段直线的表达式进行计算。在具体的实施过程中，上述曲线以及分段直线的表达式在空调出厂前已经训练并设置完成，用户根据获取的当前脏堵程度，即可得到对应的风机转速补偿量。如图2所述，为本发明一个具体实施例的的 转速无级补偿曲线图，所述风机转速补偿量计算曲线近似为5段直线，具体为：
①当0％≦d<25％时，△n＝△nd1*d/0.25；
②当25％≦d<40％时，△n＝△nd1+(△nd2-△nd1)*(d-0.25)/0.15；
③当40％≦d<55％时，△n＝△nd2+(△nd3-△nd2)*(d-0.4)/0.15；
④当55％≦d<70％时，△n＝△nd3+(△nd4-△nd3)*(d-0.55)/0.15；
⑤当70％≦d≦100％时，△n＝△nd4+(△nd5-△nd4)*(d-0.7)/0.3。
若△nd1、△nd2、△nd3、△nd4、△nd5取值分别为150、200、240、270和310，当滤尘网当前脏堵程度为45％时，根据式③可计算出转速补偿量△n＝200+(240-200)*(d-0.4)/0.15＝213r/min，进而对转速的补偿为213r/min，获得风量补偿约为106m3/h(对于35机)。
本实施例中，步骤31获取风机目标转速的步骤具体为：
获取当前风机转速值；
根据空调的当前运行情况获取系数K，并计算系数K与所述风机转速补偿量的乘积；
对所述当前风机转速值和所述乘积求和，得到风机的目标转速。
为了避免风机的目标转速超过风机的最大限制转速，本实施例的步骤31还包括以下步骤：比较风机的目标转速和风机最大限制转速，若风机的目标转速高于风机最大限制转速，则将风机的目标转速修改为风机最大限制转速。若小于或等于风机最大限制转速，则还是按照计算出的风机目标转速进行步骤4的控制。
本实施例中，对空调的当前运行模式规定了两种情况，分别为自动控制模式，即空调系统根据空调当前运行情况自动计算转速；以及用户控制模式，即用户通过遥控器设定风速，系统运行对应的转速值。当空调风速为自动控制模式运行时，所述系数K取值为1。
当空调风速为用户控制模式运行，且用户设定的转速小于空调系统根据当前空调运行情况计算出的自动转速时，所述系数K的取值范围为1～1.5；当空调风速为用户控制模式运行，且用户设定的转速大于空调系统根据当前空调运行情况计算出的自动转速时，所述系数K的取值范围为0.1～0.5；当空调风速为用户控制模式运行，且用户设定的转速等于空调系统根据当前空调运行情况计算出的自动转速时，所述系数K的取值为1。
如图3所示，为本发明一个实施例提出的一种空调风量自补偿控制系统的结构示意图，该空调风量自补偿控制系统包括脏堵程度获取模块、转速补偿量获取模块、目标转速获取模块和控制模块，所述脏堵程度获取模块用于获取空调滤尘网的当前脏堵程度；所述转速补偿量获取模块用于根据当前脏堵程度获取对应的风机转速补偿量；所述目标转速获取模块用于根据风机转速补偿量获取风机的目标转速；所述控制模块用于根据风机的目标转速控制风机运行。
本实施例中，所述脏堵程度获取模块包括：第一存储单元，用于存储预先建立的空调滤尘网脏堵程度判断参数与空调滤尘网脏堵程度的对应关系表；第一采集单元，用于采集当前参数值；第一查询单元，用于查询所述对应关系表，获取当前参数值对应的当前脏堵程度。
在其他实施例中，所述脏堵程度获取模块包括：预处理单元，用于预先设定判断空调滤尘网脏堵程度的参数；且将第一次使用空调时的所述参数值对应的滤尘网脏堵程度设为第一数值；将经过预设时间后的所述参数值对应的滤尘网脏堵程度设为第二数值；第二采集单元，用于采集当前参数值；换算单元，用于用于采用归一化方法得到当前参数值对应的当前脏堵程度。
本实施例中，所述转速补偿量获取模块包括：第二存储单元，用于存储预先建立的空调滤尘网的脏堵程度与对应的风机转速补偿量的映射表；第二查询单元，用于查询所述映射表，获取当前脏堵程度对应的风机转速补偿量。
在其他实施例中，所述转速补偿量获取模块包括：第三存储单元，用于存储预先建立的不同取值区间的空调滤尘网脏堵程度对应的风机转速补偿量计算公式；第一计算单元，用于将当前脏堵程度代入对应取值区间的风机转速补偿量计算公式，生成当前脏堵程度对应的风机转速补偿量。
本实施例中，所述目标转速获取模块包括：第三采集单元，用于获取当前风机转速值；系数获取单元，用于根据空调的当前运行情况获取系数K；第二计算单元，用于计算系数K与所述风机转速补偿量的乘积；求和单元，用于对当前风机转速值和所述乘积求和，得到风机的目标转速；比较单元，用于比较风机的目标转速和风机最大限制转速，若风机的目标转速高于风机最大限制转速，则将风机的目标转速修改为风机最大限制转速。
本实施例中，所述系数获取单元包括：空调风速运行模式判断单元，用于判断空调风速运行模式为自动控制模式或用户控制模式；系数输出单元，用于当空调风速为自动控制模式运行时，输出系数K的值为1；当空调风速为用户控制模式运行，且用户设定的转速等于空调系统根据当前空调运行情况计算出的自动转速时，输出系数K的值为1；或者当空调风速为用户控制模式运行，且用户设定的转速小于空调系统根据当前空调运行情况计算出的自动转速时，输出系数K，K的取值范围为1～1.5；或者当空调风速为用户控制模式运行，且用户设定的转速大于空调系统根据当前空调运行情况计算出的自动转速时，输出系数K，K的取值范围为0.1～0.5。对于最后两种情况，系数K所取的具体数值，可以由预先设定的系数对应表进行确定，或者根据用户设定的转速与根据当前空调运行情况计算出的自动转速的差值进行确定。
根据本发明的另一个实施例，如图3所示，提出的一种空调风量自补偿控制系统包括 脏堵程度获取模块、转速补偿量获取模块、目标转速获取模块和控制模块，所述脏堵程度获取模块用于获取空调滤尘网的当前脏堵程度；所述转速补偿量获取模块用于根据预先建立的风机转速补偿量计算公式，获取当前脏堵程度对应的风机转速补偿量；所述目标转速获取模块用于根据风机转速补偿量获取风机的目标转速；所述控制模块用于根据风机的目标转速控制风机运行。
本实施例中，所述脏堵程度获取模块包括：第一存储单元，用于存储预先建立的空调滤尘网脏堵程度判断参数与空调滤尘网脏堵程度的对应关系表；第一采集单元，用于采集当前参数值；第一查询单元，用于查询所述对应关系表，获取当前参数值对应的当前脏堵程度。
在其他实施例中，所述脏堵程度获取模块包括：预处理单元，用于预先设定判断空调滤尘网脏堵程度的参数；且将第一次使用空调时的所述参数值对应的滤尘网脏堵程度设为第一数值；将经过预设时间后的所述参数值对应的滤尘网脏堵程度设为第二数值；第二采集单元，用于采集当前参数值；换算单元，用于用于采用归一化方法得到当前参数值对应的当前脏堵程度。
本实施例中，所述转速补偿量获取模块包括：第三存储单元，用于存储预先建立的不同取值区间的空调滤尘网脏堵程度对应的风机转速补偿量计算公式；第一计算单元，用于将当前脏堵程度代入对应取值区间的风机转速补偿量计算公式，生成当前脏堵程度对应的风机转速补偿量。
本实施例中，所述目标转速获取模块包括：第三采集单元，用于获取当前风机转速值；系数获取单元，用于根据空调的当前运行情况获取系数K；第二计算单元，用于计算系数K与所述风机转速补偿量的乘积；求和单元，用于对当前风机转速值和所述乘积求和，得到风机的目标转速；比较单元，用于比较风机的目标转速和风机最大限制转速，若风机的目标转速高于风机最大限制转速，则将风机的目标转速修改为风机最大限制转速。
本实施例中，所述系数获取单元包括：空调风速运行模式判断单元，用于判断空调风速运行模式为自动控制模式或用户控制模式；系数输出单元，用于当空调风速为自动控制模式运行时，输出系数K的值为1；当空调风速为用户控制模式运行，且用户设定的转速等于空调系统根据当前空调运行情况计算出的自动转速时，输出系数K的值为1；或者当空调风速为用户控制模式运行，且用户设定的转速小于空调系统根据当前空调运行情况计算出的自动转速时，输出系数K，K的取值范围为1～1.5；或者当空调风速为用户控制模式运行，且用户设定的转速大于空调系统根据当前空调运行情况计算出的自动转速时，输出系数K，K的取值范围为0.1～0.5。对于最后两种情况，系数K所取的具体数值，可以由预先设定的系数对应表进行确定，或者根据用户设定的转速与根据当前空调运行情况计 算出的自动转速的差值进行确定。
如图4所示，为本发明一个实施例提出的一种空调的结构示意图，包括以上所述的空调风量自补偿控制系统。
此外，本发明还提供了一种非临时性计算机可读存储介质，其上存储有计算机程序，其特征在于，该程序被处理器执行时实现上述的空调风量自补偿控制方法。
本发明通过检测空调滤尘网的脏堵程度，根据脏堵程度对风机风速进行相应补偿，从而使空调器的出风量相对脏堵以前不会降低，保证了空调器在积尘状态下仍能输出系统所需的风量，不仅提高了空调器的制冷、制热效果和用户的使用舒适性，而且更加节能环保。
在本发明的描述中，需要理解的是，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本发明的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
尽管上面已经示出和描述了本发明的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本发明的限制，本领域的普通技术人员在本发明的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (20)

  1. 一种空调风量自补偿控制方法，其特征在于，包括以下步骤：
    步骤1，获取空调滤尘网的当前脏堵程度；
    步骤2，根据当前脏堵程度获取对应的风机转速补偿量；
    步骤3，根据风机转速补偿量获取风机的目标转速；
    步骤4，根据风机的目标转速控制风机运行。
  2. 根据权利要求1所述的空调风量自补偿控制方法，其特征在于，在步骤2中，根据预先建立的风机转速补偿量计算公式，获取当前脏堵程度对应的风机转速补偿量。
  3. 根据权利要求1所述的空调风量自补偿控制方法，其特征在于，所述步骤1具体为：
    预先建立用于判断空调滤尘网脏堵程度的参数与空调滤尘网脏堵程度的对应关系表；
    采集当前参数值，并查询所述对应关系表，获取当前参数值对应的当前脏堵程度。
  4. 根据权利要求1所述的空调风量自补偿控制方法，其特征在于，所述步骤1具体为：
    预先设定用于判断空调滤尘网脏堵程度的参数；且将第一次使用空调时的所述参数值对应的滤尘网脏堵程度设为第一数值；将经过预设时间后的所述参数值对应的滤尘网脏堵程度设为第二数值；
    采集当前参数值，并采用归一化方法得到当前参数值对应的当前脏堵程度。
  5. 根据权利要求1所述的空调风量自补偿控制方法，其特征在于，所述步骤2具体为：
    预先建立不同等级的空调滤尘网脏堵程度与对应的风机转速补偿量的映射表；
    查询所述映射表，获取当前脏堵程度对应的风机转速补偿量。
  6. 根据权利要求2所述的空调风量自补偿控制方法，其特征在于，所述步骤2具体为：
    预先建立不同取值区间的空调滤尘网脏堵程度对应的风机转速补偿量计算公式；
    将当前脏堵程度代入对应取值区间的风机转速补偿量计算公式，生成当前脏堵程度对应的风机转速补偿量。
  7. 根据权利要求1～6任一所述的空调风量自补偿控制方法，其特征在于，所述步骤3具体为：
    获取当前风机转速值；
    根据空调的当前运行情况获取系数K，并计算系数K与所述风机转速补偿量的乘积；
    对所述当前风机转速值和所述乘积求和，得到风机的目标转速。
  8. 根据权利要求7所述的空调风量自补偿控制方法，其特征在于，所述步骤3还包括：
    比较风机的目标转速和风机最大限制转速，若风机的目标转速高于风机最大限制转速，则将风机的目标转速修改为风机最大限制转速。
  9. 根据权利要求8所述的空调风量自补偿控制方法，其特征在于，当空调风速为自动控制模式运行时，所述系数K取值为1。
  10. 根据权利要求8所述的空调风量自补偿控制方法，其特征在于，当空调风速为用户控制模式运行，且用户设定的转速小于空调系统根据当前空调运行情况计算出的自动转速时，所述系数K的取值范围为1～1.5；当空调风速为用户控制模式运行，且用户设定的转速大于空调系统根据当前空调运行情况计算出的自动转速时，所述系数K的取值范围为0.1～0.5；当空调风速为用户控制模式运行，且用户设定的转速等于空调系统根据当前空调运行情况计算出的自动转速时，所述系数K的取值为1。
  11. 一种非临时性计算机可读存储介质，其上存储有计算机程序，其特征在于，该程序被处理器执行时实现如权利要求1～10中任一所述的空调风量自补偿控制方法。
  12. 一种空调风量自补偿控制系统，其特征在于，包括脏堵程度获取模块、转速补偿量获取模块、目标转速获取模块和控制模块，
    所述脏堵程度获取模块用于获取空调滤尘网的当前脏堵程度；
    所述转速补偿量获取模块用于根据当前脏堵程度获取对应的风机转速补偿量；
    所述目标转速获取模块用于根据风机转速补偿量获取风机的目标转速；
    所述控制模块用于根据风机的目标转速控制风机运行。
  13. 根据权利要求12所述的空调风量自补偿控制系统，其特征在于，所述转速补偿量获取模块进一步用于根据预先建立的风机转速补偿量计算公式，获取当前脏堵程度对应的风机转速补偿量。
  14. 根据权利要求12所述的空调风量自补偿控制系统，其特征在于，所述脏堵程度获取模块包括：
    第一存储单元，用于存储预先建立的空调滤尘网脏堵程度判断参数与空调滤尘网脏堵程度的对应关系表；
    第一采集单元，用于采集当前参数值；
    第一查询单元，用于查询所述对应关系表，获取当前参数值对应的当前脏堵程度。
  15. 根据权利要求12所述的空调风量自补偿控制系统，其特征在于，所述脏堵程度获取模块包括：
    预处理单元，用于预先设定判断空调滤尘网脏堵程度的参数；且将第一次使用空调时的所述参数值对应的滤尘网脏堵程度设为第一数值；将经过预设时间后的所述参数值对应的滤尘网脏堵程度设为第二数值；
    第二采集单元，用于采集当前参数值；
    换算单元，用于采用归一化方法得到当前参数值对应的当前脏堵程度。
  16. 根据权利要求12所述的空调风量自补偿控制系统，其特征在于，所述转速补偿量获取模块包括：
    第二存储单元，用于存储预先建立的空调滤尘网的脏堵程度与对应的风机转速补偿量的映射表；
    第二查询单元，用于查询所述映射表，获取当前脏堵程度对应的风机转速补偿量。
  17. 根据权利要求13所述的空调风量自补偿控制系统，其特征在于，所述转速补偿量获取模块包括：
    第三存储单元，用于存储预先建立的不同取值区间的空调滤尘网脏堵程度对应的风机转速补偿量计算公式；
    第一计算单元，用于将当前脏堵程度代入对应取值区间的风机转速补偿量计算公式，生成当前脏堵程度对应的风机转速补偿量。
  18. 根据权利要求12～17中任一所述的空调风量自补偿控制系统，其特征在于，所述目标转速获取模块包括：
    第三采集单元，用于获取当前风机转速值；
    系数获取单元，用于根据空调的当前运行情况获取系数K；
    第二计算单元，用于计算系数K与所述风机转速补偿量的乘积；
    求和单元，用于对当前风机转速值和所述乘积求和，得到风机的目标转速；
    比较单元，用于比较风机的目标转速和风机最大限制转速，若风机的目标转速高于风机最大限制转速，则将风机的目标转速修改为风机最大限制转速。
  19. 根据权利要求18所述的空调风量自补偿控制系统，其特征在于，所述系数获取单元包括：
    空调风速运行模式判断单元，用于判断空调风速运行模式为自动控制模式或用户控制模式；
    系数输出单元，用于当空调采用自动控制模式运行时，输出系数K的值为1；
    或者当空调风速为用户控制模式运行，且用户设定的转速小于空调系统根据当前空调运行情况计算出的自动转速时，输出系数K，K的取值范围为1～1.5；
    或者当空调风速为用户控制模式运行，且用户设定的转速大于空调系统根据当前空调运行情况计算出的自动转速时，输出系数K，K的取值范围为0.1～0.5；
    或者当空调风速为用户控制模式运行，且用户设定的转速等于空调系统根据当前空调运行情况计算出的自动转速时，输出系数K的值为1。
  20. 一种空调，其特征在于，包括权利要求12～19任一所述的空调风量自补偿控制系统。
PCT/CN2017/084018 2016-07-21 2017-05-11 空调风量自补偿控制方法、控制系统和空调 WO2018014634A1 (zh)

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