CN107575993B - Multi-connected fresh air machine control method and device and computer readable storage medium - Google Patents
Multi-connected fresh air machine control method and device and computer readable storage medium Download PDFInfo
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Abstract
The invention discloses a control method of a multi-connected fresh air machine, which comprises the following steps: when a starting signal of a new fan is received, acquiring the statistical time length; acquiring a first indoor unit nominal load and a second indoor unit nominal load based on the statistical duration; and adjusting the air volume of the new fan according to the nominal load of the first inner machine and the nominal load of the second inner machine. The invention also discloses a multi-connected fresh air machine control device and a computer readable storage medium. The method and the device realize accurate judgment of the actual air volume requirement of the current new fan through the nominal load of the first inner machine and the nominal load of the second inner machine, and realize real-time accurate control of the air volume of the new fan according to the accurate judgment of the actual air volume requirement of the current new fan.
Description
Technical Field
The invention relates to the field of heating ventilation air conditioners, in particular to a multi-connected fresh air fan control method and device and a computer readable storage medium.
Background
With the popularization of the new fans, more and more people choose to install the new fans in the family or public field, and the new fans are widely applied to the multi-split air conditioning system. At present, for the adjustment of the air volume of a multi-connected new fan in the industry, a method of adjusting the air volume of the fan by setting a windshield and a target air supply temperature or controlling the air volume of the fan by adopting a return air supply pressure difference is generally adopted; however, the air volume of the multi-connected new air blower is adjusted by the two methods, and the problem that the air volume of the multi-connected new air blower is difficult to accurately control due to the fact that the real indoor new air volume demand is difficult to accurately judge exists.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide a control method and device of a multi-connected fresh air machine and a computer readable storage medium, and aims to solve the technical problem that the air quantity of the multi-connected fresh air machine cannot be accurately controlled at present.
In order to achieve the above object, the present invention provides a control method of a multi-connected fresh air handling machine, including the following steps:
when a starting signal of a new fan is received, acquiring the statistical time length;
acquiring a first indoor unit nominal load and a second indoor unit nominal load based on the statistical duration;
and adjusting the air volume of the new fan according to the nominal load of the first inner machine and the nominal load of the second inner machine.
In one embodiment, the step of obtaining the first indoor unit nominal load and the second indoor unit nominal load based on the statistical duration includes:
acquiring a first sub-internal machine nominal load and a second sub-internal machine nominal load in the statistical time period according to the statistical time period;
calculating a first indoor unit nominal load and a second indoor unit nominal load based on the first indoor unit nominal load and the second indoor unit nominal load.
In an embodiment, the step of adjusting the air volume of the fresh air machine according to the first indoor unit nominal load and the second indoor unit nominal load includes:
calculating an indoor unit nominal load ratio coefficient based on the first indoor unit nominal load and the second indoor unit nominal load;
and adjusting the air volume of the new fan according to the nominal load ratio coefficient of the internal machine.
In one embodiment, the step of calculating an indoor unit nominal load ratio coefficient based on the first indoor unit nominal load and the second indoor unit nominal load includes:
calculating a total indoor unit nominal load based on the first indoor unit nominal load and the second indoor unit nominal load;
an indoor unit nominal load ratio factor is calculated based on the first indoor unit nominal load and the total indoor unit nominal load.
In an embodiment, the step of adjusting the air volume of the fresh air machine according to the indoor unit nominal load ratio coefficient includes:
obtaining a current indoor unit nominal load ratio coefficient corresponding to the statistical duration and a latest indoor unit nominal load ratio coefficient;
and adjusting the air volume of the new fan according to the current indoor unit nominal load ratio coefficient and the latest indoor unit nominal load ratio coefficient.
In an embodiment, the step of adjusting the air volume of the new blower according to the current indoor unit nominal load ratio coefficient and the latest indoor unit nominal load ratio coefficient includes:
calculating a control parameter of the new fan based on the current indoor unit nominal load ratio coefficient and the latest indoor unit nominal load ratio coefficient;
and adjusting the air volume of the new fan according to the control parameter.
In an embodiment, the step of adjusting the air volume of the new air blower according to the control parameter includes:
acquiring a standard control range of the control parameter, and determining a falling value range of the control parameter according to the standard control range;
and adjusting the air volume of the new fan according to the falling value range of the control parameter.
In an embodiment, the step of adjusting the air volume of the new fan according to the falling value range of the control parameter includes:
acquiring the air volume of the current new fan;
and adjusting the air volume of the current new fan according to the falling value range of the control parameter.
In addition, in order to achieve the above object, the present invention further provides a multi-type fresh air handling machine control device, including: the multi-connected fresh air control method comprises a memory, a processor and a multi-connected fresh air control program which is stored on the memory and can run on the processor, wherein when the multi-connected fresh air control program is executed by the processor, the steps of the multi-connected fresh air control method are realized.
In addition, in order to achieve the above object, the present invention further provides a computer readable storage medium, where a multi-connected fresh air control program is stored, and when being executed by a processor, the multi-connected fresh air control program implements the steps of any one of the multi-connected fresh air control methods.
According to the control method of the multi-connected fresh air machine, when a starting signal of the fresh air machine is received, the statistical time length is obtained, then the nominal load of the first inner machine and the nominal load of the second inner machine are obtained based on the statistical time length, and then the air volume of the fresh air machine is adjusted according to the nominal load of the first inner machine and the nominal load of the second inner machine, so that the real air volume requirement of the current fresh air machine is accurately judged through the nominal load of the first inner machine and the nominal load of the second inner machine, and the real-time accurate control of the air volume of the fresh air machine is realized according to the accurate judgment of the real air volume requirement of the current fresh air machine.
Drawings
Fig. 1 is a schematic structural diagram of a terminal to which a multi-connected fresh air handling device belongs in a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a control method of a multi-split type fresh air handling machine according to a first embodiment of the present invention;
fig. 3 is a schematic structural diagram of a multi-connected fresh air machine system according to an embodiment of the present invention;
fig. 4 is a detailed flowchart of the step of acquiring the nominal load of the first internal machine and the nominal load of the second internal machine based on the statistical duration in the first embodiment of the control method of the multi-split type fresh air machine according to the present invention;
fig. 5 is a detailed flowchart of the step of adjusting the air volume of the fresh air machine according to the nominal load of the first internal machine and the nominal load of the second internal machine in the first embodiment of the control method of the multi-connected fresh air machine of the present invention;
fig. 6 is a detailed flowchart of the step of calculating the nominal load ratio coefficient of the indoor units based on the nominal loads of the first indoor units and the nominal loads of the second indoor units in the third embodiment of the control method of the multi-split type fresh air handling machine according to the present invention;
fig. 7 is a detailed schematic flow chart of a step of adjusting the air volume of the fresh air machine according to the indoor machine nominal load ratio coefficient in the third embodiment of the control method of the multi-connected fresh air machine of the present invention;
fig. 8 is a detailed flowchart of a step of adjusting the air volume of the fresh air machine according to the current indoor unit nominal load ratio coefficient and the latest indoor unit nominal load ratio coefficient in the fifth embodiment of the control method of the multi-connected fresh air machine of the present invention;
fig. 9 is a detailed flowchart of a step of adjusting the air volume of the fresh air machine according to the control parameter in the sixth embodiment of the control method of the multi-connected fresh air machine according to the present invention;
fig. 10 is a detailed flowchart of a step of adjusting the air volume of the fresh air machine according to the fall range of the control parameter in the seventh embodiment of the control method of the multi-connected fresh air machine according to the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, fig. 1 is a schematic structural diagram of a terminal to which a multi-connected fresh air controller in a hardware operating environment according to an embodiment of the present invention belongs;
the terminal of the embodiment of the invention can be a PC, and can also be a mobile terminal device with a display function, such as a smart phone, a tablet computer, an electronic book reader, an MP3(Moving Picture Experts Group Audio Layer III, dynamic video Experts compress standard Audio Layer 3) player, an MP4(Moving Picture Experts Group Audio Layer IV, dynamic video Experts compress standard Audio Layer 4) player, a portable computer, and the like.
As shown in fig. 1, the terminal may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, a communication bus 1002. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory 1005 may be a high-speed RAM memory or a non-volatile memory (e.g., a magnetic disk memory). The memory 1005 may alternatively be a storage device separate from the processor 1001.
Optionally, the terminal may further include a camera, a Radio Frequency (RF) circuit, a sensor, an audio circuit, a WiFi module, and the like. Such as light sensors, motion sensors, and other sensors. Specifically, the light sensor may include an ambient light sensor that may adjust the brightness of the display screen according to the brightness of ambient light, and a proximity sensor that may turn off the display screen and/or the backlight when the mobile terminal is moved to the ear. As one of the motion sensors, the gravity acceleration sensor can detect the magnitude of acceleration in each direction (generally, three axes), detect the magnitude and direction of gravity when the mobile terminal is stationary, and can be used for applications (such as horizontal and vertical screen switching, related games, magnetometer attitude calibration), vibration recognition related functions (such as pedometer and tapping) and the like for recognizing the attitude of the mobile terminal; of course, the mobile terminal may also be configured with other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which are not described herein again.
Those skilled in the art will appreciate that the terminal structure shown in fig. 1 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, the memory 1005, which is a kind of computer storage medium, may include an operating system, a network communication module, a user interface module, and a multi-connected new air control program.
In the terminal shown in fig. 1, the network interface 1004 is mainly used for connecting to a backend server and performing data communication with the backend server; the user interface 1003 is mainly used for connecting a client (user side) and performing data communication with the client; and the processor 1001 may be used to invoke a multi-drop fresh air control program stored in the memory 1005.
Based on the above terminal hardware structure, various embodiments of the present invention are proposed.
The invention provides a control method of a multi-connected fresh air machine, and referring to fig. 2, fig. 2 is a schematic flow chart of a first embodiment of the control method of the multi-connected fresh air machine.
In this embodiment, the control method of the multi-split type fresh air handling machine includes:
step S11, when a starting signal of the new fan is received, obtaining the statistical time length;
in this embodiment, the statistical duration is a preset periodic time length value, and the periodicity of the statistical duration indicates that the nominal load of the internal machine is counted every other statistical duration; the multi-connected new fan system comprises an outdoor unit and an indoor unit besides a new fan, the counted nominal load of the indoor unit is the nominal load corresponding to all the indoor units respectively in different states counted in the time period of the counted time duration, and the indoor unit represents the indoor unit; specifically, the nominal load of a single internal machine in the running state is the nominal load of a first internal sub-machine, and the nominal load of a single internal machine in the shutdown state is the nominal load of a second internal sub-machine; and when a starting signal of the new fan is received, acquiring the statistical time length, and acquiring the nominal load of the internal machine corresponding to each different state in the statistical time length period based on the statistical time length.
Step S12, acquiring a first indoor unit nominal load and a second indoor unit nominal load based on the statistical duration;
in this embodiment, the nominal load refers to the nominal load capacity on the nameplate of the machine, such as the cooling capacity and the heating capacity; the nominal load of the first indoor unit is expressed as the collection of the nominal loads of the indoor units in all the running states, the nominal load of the single indoor unit in the running state is expressed by the nominal load of the first indoor unit sub, and the nominal load of the first indoor unit sub is composed of a plurality of nominal loads of the first indoor unit sub; the nominal load of the second indoor unit is represented as a set of nominal loads of all the indoor units in the shutdown state, the nominal load of a single indoor unit in the shutdown state is represented by the nominal load of the second indoor unit, and the nominal load of the second indoor unit is composed of a plurality of nominal loads of the second indoor units; wherein the first inner machine nominal load and the second inner machine nominal load together constitute an inner machine nominal load of all states. The state of each indoor unit can be determined through electric control, and relevant information, namely nominal load information, on a nameplate of each indoor unit can be read through electric control; therefore, when the statistical duration is obtained, the nominal load of each internal machine in the running state (namely, the nominal load of the first internal sub-machine) and the nominal load of each internal machine in the shutdown state (namely, the nominal load of the second internal sub-machine) in the statistical duration time period are obtained through electronic control; after the nominal loads of the first internal sub-machines are obtained, summing calculation is carried out on the nominal loads of all the first internal sub-machines, and then the nominal loads of the first internal sub-machines can be obtained; and after the nominal loads of the second internal machines are obtained, summing all the nominal loads of the second internal machines, and obtaining the nominal loads of the second internal machines.
As shown in fig. 3, the multi-connected fresh air blower system further includes a plurality of indoor units and a plurality of outdoor units in addition to the fresh air blowers, wherein ON and OFF respectively indicate an operation state and a shutdown state of the indoor units; the first sub indoor unit nominal load represents the nominal load corresponding to the indoor units N1 of the indoor unit 1, the indoor unit 2 and the indoor unit 3 … … in the running state (ON); the first indoor unit nominal load represents the sum of the nominal loads of all the indoor units in the running state; the second sub-indoor unit nominal load represents the nominal load corresponding to the indoor unit I, the indoor unit II, the indoor unit III and the indoor unit N2 of the indoor unit IV … … which are in a power-OFF state (OFF) in the diagram respectively; the second indoor unit nominal load then represents the sum of the nominal loads of all the indoor units in the off state.
And step S13, adjusting the air volume of the fresh air fan according to the first indoor unit nominal load and the second indoor unit nominal load.
In the embodiment, the air volume of the current new fan can be adjusted according to the acquired nominal load of the first internal machine and the nominal load of the second internal machine; specifically, when a first indoor unit nominal load and a second indoor unit nominal load are obtained, the first indoor unit nominal load and the second indoor unit nominal load are summed to obtain a total indoor unit nominal load; calculating the ratio of the first indoor unit nominal load to the total indoor unit nominal load to obtain a current indoor unit nominal load ratio coefficient; when the indoor unit nominal load ratio coefficient is obtained, obtaining the latest indoor unit nominal load ratio coefficient, namely the indoor unit nominal load ratio coefficient corresponding to the previous statistical time length of the current indoor unit nominal load ratio coefficient; calculating the difference between the current nominal load ratio coefficient of the internal machine and the last nominal load ratio coefficient of the internal machine to obtain the control parameter of the new fan; the control parameters are the air volume control parameters of the new fan, the air volume of the new fan can be controlled through the control parameters, and the control parameters corresponding to the statistical duration at different moments can be the same or different; when the control parameter corresponding to the statistical duration at the current moment is obtained, a standard control range is obtained, and the falling value range of the control parameter can be determined according to the standard control range; and when the falling value range of the control parameter is determined, acquiring the air volume of the current new fan, so that the air volume of the current new fan is correspondingly adjusted according to different falling value ranges of the control parameter.
According to the control method of the multi-connected fresh air machine, when a starting signal of the fresh air machine is received, the statistical time length is obtained, then the nominal load of the first inner machine and the nominal load of the second inner machine are obtained based on the statistical time length, and then the air volume of the fresh air machine is adjusted according to the nominal load of the first inner machine and the nominal load of the second inner machine, so that the real air volume requirement of the current fresh air machine is accurately judged through the nominal load of the first inner machine and the nominal load of the second inner machine, and the real-time accurate control of the air volume of the fresh air machine is realized according to the accurate judgment of the real air volume requirement of the current fresh air machine.
Based on the first embodiment, a second embodiment of the multiple fresh air handling machine control method according to the present invention is provided, and referring to fig. 4, in this embodiment, step S12 includes:
step S21, acquiring the nominal load of the first sub-internal machine and the nominal load of the second sub-internal machine in the time period of the statistical duration according to the statistical duration;
in this embodiment, the nominal load of the first sub-internal unit is the nominal load of each normal internal unit in the running state, and the nominal load of the second sub-internal unit is the nominal load of each normal internal unit in the shutdown state; according to the obtained statistical duration, respectively counting nominal loads corresponding to different states of each internal machine in the statistical duration time period; the internal machine in the running state corresponds to the nominal load of the first internal sub-machine, and the internal machine in the shutdown state corresponds to the nominal load of the second internal sub-machine; specifically, when the statistical duration is obtained, the states of the internal machines in the statistical duration are judged through electric control, and when the internal machines are determined to be in the running state, the nominal load of the internal machines in the running state, namely the nominal load of the first sub-internal machine, is obtained; and when the internal machine is determined to be in the shutdown state, acquiring the nominal load of the internal machine in the shutdown state, namely the nominal load of the second sub-internal machine.
Step S22, calculating a first indoor unit nominal load and a second indoor unit nominal load based on the first indoor unit nominal load and the second indoor unit nominal load.
In this embodiment, the multi-connected air conditioning system includes a plurality of indoor units, and nominal loads of all the first sub-indoor units correspondingly constitute nominal loads of the first indoor units, and nominal loads of all the second sub-indoor units correspondingly constitute nominal loads of the second indoor units; the nominal load of the first internal machine and the nominal load of the second internal machine can be respectively calculated from the nominal load of the first internal machine and the nominal load of the second internal machine; specifically, when the statistical duration is obtained, obtaining all the nominal loads of the first sub-internal unit and all the nominal loads of the second sub-internal unit within the statistical duration time period; summing all the nominal loads of the first internal machines to obtain corresponding nominal loads of the first internal machines, wherein the nominal loads of the first internal machines are the sum of all the nominal loads of the internal machines in the running state in the statistical duration time period; and summing all the nominal loads of the second internal machines to obtain corresponding nominal loads of the second internal machines, wherein the nominal loads of the second internal machines are the sum of all the nominal loads of the internal machines in the shutdown state in the statistical duration time period.
If Q is used to represent the nominal load of the internal unit, then QnDenotes the sub-indoor unit nominal load, and the subscript n denotes the indoor unit number;
if the odd-numbered internal machines are in the running state, the nominal load of the first internal machine is as follows:
∑Qon＝Q1+Q3+Q5+…+Q2n+1
wherein, ∑ QonRepresenting the first indoor unit nominal load, on representing the operating condition, Q1Q3Q5……Q2n+1Representing the nominal load of the first sub-internal machine.
If the even numbered internal machines are in the shutdown state, the nominal load of the first internal machine is as follows:
∑Qoff＝Q2+Q4+Q6+…+Q2n
wherein, ∑ QoffIndicating the nominal load of the second internal machine, off indicating the off state, Q2Q4Q6……Q2nRepresenting the nominal load of the second sub-machine.
According to the control method of the multi-connected fresh air handling machine, the nominal loads of the first sub-indoor unit and the nominal loads of the second sub-indoor unit in the statistical time period are obtained according to the statistical time period, then the nominal loads of the first sub-indoor unit and the nominal loads of the second sub-indoor unit are calculated based on the nominal loads of the first sub-indoor unit and the nominal loads of the second sub-indoor unit, statistics of the nominal loads of the indoor units in different states in the statistical time period is achieved, and the nominal loads of the indoor units corresponding to the different states can be accurately calculated through the obtained nominal loads of the first sub-indoor units and the nominal loads of the second sub-indoor units.
Based on the first embodiment, a third embodiment of the multiple fresh air handling machine control method according to the present invention is provided, and referring to fig. 5, in this embodiment, step S13 includes:
step S31, calculating an internal machine nominal load ratio coefficient based on the first internal machine nominal load and the second internal machine nominal load;
in the embodiment, the indoor unit nominal load ratio coefficient represents a ratio coefficient of a nominal load of the indoor unit in the running state to a total indoor unit nominal load, wherein the total indoor unit nominal load represents a sum of the nominal loads of the indoor units in all states, and the indoor unit nominal load ratio coefficient can be calculated through the first indoor unit nominal load and the second indoor unit nominal load; specifically, when a first indoor unit nominal load and a second indoor unit nominal load are obtained, calculating a total indoor unit nominal load, wherein the total indoor unit nominal load is the sum of the first indoor unit nominal load and the second indoor unit nominal load, namely the sum of the indoor unit nominal loads in all states; and when the total internal machine nominal load is obtained, calculating the ratio of the first internal machine nominal load to the total internal machine nominal load, wherein the calculated coefficient is an internal machine nominal load ratio coefficient.
And step S32, adjusting the air volume of the new fan according to the indoor unit nominal load ratio coefficient.
In this embodiment, the calculated indoor unit nominal load ratio coefficient is an indoor unit nominal load ratio coefficient corresponding to the current time statistical duration, that is, a current indoor unit nominal load ratio coefficient; when the indoor unit nominal load ratio coefficient is obtained, a stored latest indoor unit nominal load ratio coefficient is also required to be obtained, and the latest indoor unit nominal load ratio coefficient is an indoor unit nominal load ratio coefficient corresponding to the last statistical time length of the current indoor unit nominal load ratio coefficient; and calculating the difference between the current indoor unit nominal load ratio coefficient and the latest indoor unit nominal load ratio coefficient, wherein the difference is expressed as the control parameter of the new fan, so that the air volume of the new fan is adjusted according to the control parameter.
According to the control method of the multi-connected fresh air fan provided by the embodiment, the nominal load ratio coefficient of the inner fan is calculated based on the nominal load of the first inner fan and the nominal load of the second inner fan, and then the air volume of the fresh air fan is adjusted according to the nominal load ratio coefficient of the inner fan, so that the accurate nominal load ratio coefficient of the inner fan is obtained through calculation, relevant parameters are obtained according to the nominal load ratio coefficient of the inner fan, and the accurate control of the air volume of the multi-connected fresh air fan is realized.
Based on the third embodiment, a fourth embodiment of the control method of the multiple fresh air handling unit according to the present invention is provided, and referring to fig. 6, in this embodiment, step S31 includes:
step S41, calculating a total indoor unit nominal load based on the first indoor unit nominal load and the second indoor unit nominal load;
in the present embodiment, the total internal machine nominal load is the sum of the nominal loads of the internal machines in all states, that is, the sum of the nominal loads of all internal machines in the running state and the nominal loads of all internal machines in the shutdown state; the first indoor unit nominal load represents the nominal loads of all the indoor units in the running state, and the second indoor unit nominal load represents the nominal loads of all the indoor units in the shutdown state; therefore, the total indoor unit nominal load can be obtained by calculation based on the first indoor unit nominal load and the second indoor unit nominal load; specifically, when a first indoor unit nominal load and a second indoor unit nominal load are acquired, the first indoor unit nominal load and the second indoor unit nominal load are summed, and the summed value is the total indoor unit nominal load value.
Step S42, an internal machine nominal load ratio coefficient is calculated based on the first internal machine nominal load and the total internal machine nominal load.
In the present embodiment, the indoor unit nominal load ratio coefficient represents the nominal load of the indoor unit in the running state, and is a ratio coefficient of the sum of the nominal loads of the indoor units in all the states; the nominal loads of all the internal machines in the running state are the first internal machine nominal load, and the sum of the nominal loads of the internal machines in all the states is the total internal machine nominal load; therefore, the indoor unit nominal load ratio coefficient can be obtained through calculation based on the first indoor unit nominal load and the total indoor unit nominal load; specifically, when the nominal load of the first internal machine and the nominal load of the total internal machine are obtained, the ratio of the nominal load of the first internal machine to the nominal load of the total internal machine is calculated, and the calculated ratio coefficient is the nominal ratio coefficient of the internal machine.
If K represents the indoor unit nominal load ratio coefficient, the indoor unit nominal load ratio coefficient is specifically as follows:
wherein, ∑ QonRepresents the first internal machine nominal load, (∑ Q)on+∑Qoff) Represents the total internal machine nominal load, in the range 0 ≦ K ≦ 1:
when K is 0, all the internal machines are in the off state, and in this case, ∑ Q is usedoff＝1，∑Qon＝0；
When K is 1, all the internal machines are in an operating state, and in this case, ∑ Q is setoff＝0，∑Qon＝1。
According to the control method of the multi-connected fresh air machine, the total indoor machine nominal load is calculated based on the first indoor machine nominal load and the second indoor machine nominal load, then the indoor machine nominal load ratio coefficient is calculated based on the first indoor machine nominal load and the total indoor machine nominal load, the calculation of the internal machine nominal load ratio coefficient is achieved, the corresponding indoor machine nominal load ratio coefficient can be accurately obtained through the calculation of the first indoor machine nominal load and the total indoor machine nominal load, and therefore the air volume of the multi-connected fresh air machine can be controlled more accurately according to the indoor machine nominal load ratio coefficient.
Based on the third embodiment, a fifth embodiment of the control method of the multiple fresh air handling unit according to the present invention is provided, and referring to fig. 7, in this embodiment, step S32 includes:
step S51, obtaining the current indoor unit nominal load ratio coefficient corresponding to the statistical duration and the latest indoor unit nominal load ratio coefficient;
in this embodiment, the current indoor unit nominal load ratio coefficient is an indoor unit nominal load ratio coefficient corresponding to the current statistical duration; the last internal machine nominal load ratio coefficient is an internal machine nominal load ratio coefficient corresponding to the last statistical length, namely the last internal machine nominal load ratio coefficient of the current internal machine nominal load ratio coefficient; specifically, when the current indoor unit nominal load ratio coefficient is obtained by calculating the first indoor unit nominal load and the total indoor unit nominal load, the latest indoor unit nominal load ratio coefficient corresponding to the statistical duration is obtained; based on the obtained last internal machine nominal load ratio coefficient and the current internal machine nominal load ratio coefficient, the adjustment of the air volume of the corresponding fresh air fan is realized;
wherein the last internal machine nominal load ratio coefficient may be represented by K' and the current internal machine nominal load ratio coefficient may be represented by K.
And step S52, adjusting the air volume of the new fan according to the current indoor unit nominal load ratio coefficient and the latest indoor unit nominal load ratio coefficient.
In the embodiment, according to the current indoor unit nominal load ratio coefficient and the latest indoor unit nominal load ratio coefficient, the control parameter of the new fan can be obtained through calculation, and the air volume of the new fan can be adjusted according to the control parameter; the control parameter is the difference value between the current indoor unit nominal load ratio coefficient and the latest indoor unit nominal load ratio coefficient, the control parameter is obtained through calculation, the control parameters corresponding to the statistical time length at different moments are possibly the same or different, and the control parameter can control the change of the air volume of the new fan; specifically, when the control parameter is obtained through calculation, a standard control range of the control parameter is obtained, wherein the standard control range is a fixed control range of a preset control parameter; and judging the falling value range of the control parameter relative to the standard control range, so as to correspondingly adjust the air volume change of the new fan according to different falling value ranges of the control parameter. Particularly, when an indoor unit nominal load ratio coefficient corresponding to the statistical duration is obtained for the first time, namely when the indoor unit nominal load ratio coefficient is initialized, the latest indoor unit nominal load ratio coefficient does not exist at the moment, and the air volume does not change at the moment; and when the ratio coefficient of the nominal load of the internal machine is at least twice, the air quantity of the new fan can be calculated and adjusted through the ratio coefficient of the nominal load of the internal machine.
In the control method of the multi-connected fresh air machine provided in this embodiment, the air volume of the fresh air machine is adjusted by obtaining the current indoor machine nominal load ratio coefficient and the latest indoor machine nominal load ratio coefficient corresponding to the statistical duration, and then according to the current indoor machine nominal load ratio coefficient and the latest indoor machine nominal load ratio coefficient, the obtaining of the current indoor machine nominal load ratio coefficient and the latest indoor machine nominal load ratio coefficient is realized, and the accurate control of the air volume of the fresh air machine is realized by calculating the nominal load ratio coefficients of the current indoor machine nominal load ratio coefficient and the latest indoor machine nominal load ratio coefficient.
Based on the fifth embodiment, a sixth embodiment of the multiple fresh air handling machine control method according to the present invention is provided, and referring to fig. 8, in this embodiment, step S52 includes:
step S61, calculating control parameters of the new fan based on the current indoor unit nominal load ratio coefficient and the latest indoor unit nominal load ratio coefficient;
in the embodiment, the control parameter is an air volume control parameter of the new fan, and the air volume of the new fan can be controlled through the control parameter; specifically, when the current indoor unit nominal load ratio coefficient and the latest indoor unit nominal load ratio coefficient are obtained, the current indoor unit nominal load ratio coefficient and the latest indoor unit nominal load ratio coefficient are subjected to subtraction, and then the control parameter of the air volume of the new fan can be obtained; if the current indoor unit nominal load ratio factor is denoted by K and the last indoor unit nominal load ratio factor is denoted by K ', the control parameter may be denoted by Δ K, where Δ K is K-K'.
And step S62, adjusting the air volume of the new fan according to the control parameters.
In this embodiment, the air volume of the current new fan can be adjusted according to the control parameter; specifically, when a control parameter is obtained through calculation, a standard control range of the control parameter is obtained, wherein the standard control range is a preset control range corresponding to the control parameter; determining the falling value range of the control parameter according to the standard control range, and acquiring the air volume of the current new fan when the falling value range of the control parameter is determined; adjusting the air volume of the current new fan according to the falling value range of the control parameter, and if the falling value range of the control parameter is within the standard control range, keeping the air volume of the current new fan unchanged; if the falling value range of the control parameter is on the left side of the standard control range, the air volume of the current new fan is reduced; if the falling value range of the control parameter is on the right side of the standard control range, the air volume of the current new fan is increased; when the control parameter is larger than the left limit of the standard control range and smaller than the right limit of the standard control range, the falling value range of the control parameter is within the standard control range; when the control parameter is smaller than the left limit of the standard control range, indicating that the falling value range of the control parameter is on the left side of the standard control range; when the control parameter is larger than the right limit of the standard control range, the falling value range of the control parameter is shown on the right side of the standard control range.
According to the control method of the multi-connected fresh air machine provided by the embodiment, the control parameter of the fresh air machine is calculated based on the current indoor machine nominal load ratio coefficient and the latest indoor machine nominal load ratio coefficient, and then the air volume of the fresh air machine is adjusted according to the control parameter, so that the more accurate control parameter is obtained through calculation, and the more accurate control of the air volume of the fresh air machine is realized according to the control parameter.
Based on the sixth embodiment, a seventh embodiment of the control method of the multiple fresh air handling unit according to the present invention is provided, and referring to fig. 9, in this embodiment, step S62 includes:
step S71, acquiring a standard control range of the control parameter, and determining a falling value range of the control parameter according to the standard control range;
in this embodiment, the standard control range is a control range of the control parameter, and by dividing the standard control range, the air volume of the new air blower can be adjusted according to whether the obtained control parameter falling value is outside or inside the standard control range; wherein, the falling value range of the control parameter means the falling value position of the control parameter relative to the standard control range; therefore, according to the standard control range, the fall value range of the control parameter can be divided into three categories, which are: the falling value range of the control parameter is within the standard control range, the falling value range of the control parameter is on the left side of the standard control range, and the falling value range of the control parameter is on the right side of the standard control range; specifically, when the control parameter is acquired, a standard control range of the control parameter is acquired, and the falling value range of the control parameter is determined based on the standard control range.
And step S72, adjusting the air volume of the new fan according to the falling value range of the control parameter.
In this embodiment, when the falling value range of the control parameter is determined, the windshield of the current new air blower is also required to be obtained, so that the air volume of the new air blower is adjusted according to the windshield of the current new air blower and the falling value range of the control parameter; specifically, when the falling value range of the control parameter is determined, the windshield of the current fresh air fan is obtained; if the falling value range of the control parameter is within the standard control range, keeping the windshield of the current new fan unchanged, namely, not adjusting the air volume of the new fan; if the falling value range of the control parameter is on the left side of the standard control range, reducing the air volume of the current new fan; and if the falling value range of the control parameter is on the right side of the standard control range, increasing the air volume of the current new fan.
According to the control method of the multi-connected fresh air machine, the standard control range of the control parameter is obtained, the falling value range of the control parameter is determined according to the standard control range, the air volume of the fresh air machine is adjusted according to the falling value range of the control parameter, the falling value range of the control parameter is determined, the actual air volume requirement of the current fresh air machine can be judged more accurately according to the falling value range of the control parameter, and therefore the air volume of the fresh air machine is controlled more accurately.
Based on the seventh embodiment, an eighth embodiment of the multiple fresh air handling machine control method according to the present invention is provided, and referring to fig. 10, in this embodiment, step S72 includes:
step S81, acquiring the air volume of the current new fan;
in the embodiment, the air volume of the fresh air fan can be divided according to the windshields, so that different windshields are used for representing the air volume; the wind shield of the new fan can be divided into a plurality of different gears, for example, the wind shield of the new fan is divided into a high gear, a middle gear and a low gear, wherein the high gear corresponds to the air volume of the third gear, the middle gear corresponds to the air volume of the second gear, the low gear corresponds to the air volume of the first gear, and the current air volume can be determined according to different gears; when the falling value range of the control parameter is determined, the windshield of the new fan in the current air-conditioning system needs to be obtained, so that the air volume of the current new fan can be determined according to the windshield of the current new fan.
And step S82, adjusting the air volume of the current new fan according to the falling value range of the control parameter.
In this embodiment, when the air volume of the current new fan is obtained, the air volume of the new fan is adjusted according to the air volume of the current new fan and the falling value range of the control parameter; specifically, when the air volume of the current new fan is obtained, if the falling value range of the control parameter is within the standard control range, the windshield corresponding to the air volume of the current new fan is kept unchanged; if the falling value range of the control parameter is on the left side of the standard control range, reducing the windshield corresponding to the air volume of the current new fan by one gear, for example, obtaining that the windshield corresponding to the air volume of the current new fan is a third gear, and reducing the third gear to a second gear when the falling value range of the control parameter is on the left side of the standard control range; if the falling value range of the control parameter is on the right side of the standard control range, increasing the first gear of the windshield corresponding to the air quantity of the current new fan, for example, increasing the second gear of the windshield corresponding to the air quantity of the current new fan to a third gear; particularly, when the adjustment is finished each time, the windshield of the adjusted new fan is recorded and stored, and the air volume of the current new fan is adjusted once every other counting time according to the windshield of the current new fan and the falling value range of the corresponding control parameter.
If the standard control range of the control parameter is set to be [ -1/m,1/m ], F represents the current windshield, wherein m represents the gear number of the fresh air fan (if the fresh air fan has three gears of high, medium and low, m is 3), -1/m represents that the gear of the current windshield is reduced by one gear, and 1/m represents that the gear of the current fresh air fan is increased by one gear;
when delta K is more than or equal to-1/m and less than or equal to 1/m, namely the falling value range of the control parameter is within the standard control range, the current windshield is kept unchanged; when the delta K is larger than or equal to 1/m, namely the falling value range of the control parameter is shown on the right side of the standard control range, the current windshield is increased by one gear (namely F-1); when Δ K ≦ 1/m, indicating that the falling range for the control parameter is to the left of the standard control range, then the current windshield is decreased by one gear (i.e., F + 1).
According to the control method of the multi-connected fresh air machine, the air volume of the fresh air machine at present is obtained, and then the air volume of the fresh air machine at present is adjusted according to the falling value range of the control parameter, so that the real air volume requirement of the fresh air machine is accurately judged according to the falling value range of the control parameter, and the air volume of the fresh air machine is adjusted once according to the relevant parameter at intervals of statistical time, so that the air volume of the fresh air machine is dynamically adjusted.
In addition, in order to achieve the above object, the present invention further provides a multi-type fresh air handling machine control device, including: the multi-connected fresh air control program comprises a memory, a processor and a multi-connected fresh air control program which is stored on the memory and can run on the processor, wherein when the multi-connected fresh air control program is executed by the processor, the following steps are realized:
when a starting signal of a new fan is received, acquiring the statistical time length;
acquiring a first indoor unit nominal load and a second indoor unit nominal load based on the statistical duration;
and adjusting the air volume of the new fan according to the nominal load of the first inner machine and the nominal load of the second inner machine.
Further, when executed by the processor, the multi-connected fresh air controller control program further implements the following operations:
acquiring a first sub-internal machine nominal load and a second sub-internal machine nominal load in the statistical time period according to the statistical time period;
calculating a first indoor unit nominal load and a second indoor unit nominal load based on the first indoor unit nominal load and the second indoor unit nominal load.
Further, when executed by the processor, the multi-connected fresh air controller control program further implements the following operations:
calculating an indoor unit nominal load ratio coefficient based on the first indoor unit nominal load and the second indoor unit nominal load;
and adjusting the air volume of the new fan according to the nominal load ratio coefficient of the internal machine.
Further, when executed by the processor, the multi-connected fresh air controller control program further implements the following operations:
calculating a total indoor unit nominal load based on the first indoor unit nominal load and the second indoor unit nominal load;
an indoor unit nominal load ratio factor is calculated based on the first indoor unit nominal load and the total indoor unit nominal load.
Further, when executed by the processor, the multi-connected fresh air controller control program further implements the following operations:
obtaining a current indoor unit nominal load ratio coefficient corresponding to the statistical duration and a latest indoor unit nominal load ratio coefficient;
and adjusting the air volume of the new fan according to the current indoor unit nominal load ratio coefficient and the latest indoor unit nominal load ratio coefficient.
Further, when executed by the processor, the multi-connected fresh air controller control program further implements the following operations:
calculating a control parameter of the new fan based on the current indoor unit nominal load ratio coefficient and the latest indoor unit nominal load ratio coefficient;
and adjusting the air volume of the new fan according to the control parameter.
Further, when executed by the processor, the multi-connected fresh air controller control program further implements the following operations:
acquiring a standard control range of the control parameter, and determining a falling value range of the control parameter according to the standard control range;
and adjusting the air volume of the new fan according to the falling value range of the control parameter.
Further, when executed by the processor, the multi-connected fresh air controller control program further implements the following operations:
acquiring the air volume of the current new fan;
and adjusting the air volume of the current new fan according to the falling value range of the control parameter.
In addition, to achieve the above object, the present invention further provides a computer-readable storage medium, where a multi-connected type fresh air control program is stored, and when executed by a processor, the multi-connected type fresh air control program implements the following steps:
when a starting signal of a new fan is received, acquiring the statistical time length;
acquiring a first indoor unit nominal load and a second indoor unit nominal load based on the statistical duration;
and adjusting the air volume of the new fan according to the nominal load of the first inner machine and the nominal load of the second inner machine.
Further, when executed by the processor, the multi-connected fresh air controller control program further implements the following operations:
acquiring a first sub-internal machine nominal load and a second sub-internal machine nominal load in the statistical time period according to the statistical time period;
calculating a first indoor unit nominal load and a second indoor unit nominal load based on the first indoor unit nominal load and the second indoor unit nominal load.
Further, when executed by the processor, the multi-connected fresh air controller control program further implements the following operations:
calculating an indoor unit nominal load ratio coefficient based on the first indoor unit nominal load and the second indoor unit nominal load;
and adjusting the air volume of the new fan according to the nominal load ratio coefficient of the internal machine.
Further, when executed by the processor, the multi-connected fresh air controller control program further implements the following operations:
calculating a total indoor unit nominal load based on the first indoor unit nominal load and the second indoor unit nominal load;
an indoor unit nominal load ratio factor is calculated based on the first indoor unit nominal load and the total indoor unit nominal load.
Further, when executed by the processor, the multi-connected fresh air controller control program further implements the following operations:
obtaining a current indoor unit nominal load ratio coefficient corresponding to the statistical duration and a latest indoor unit nominal load ratio coefficient;
and adjusting the air volume of the new fan according to the current indoor unit nominal load ratio coefficient and the latest indoor unit nominal load ratio coefficient.
Further, when executed by the processor, the multi-connected fresh air controller control program further implements the following operations:
calculating a control parameter of the new fan based on the current indoor unit nominal load ratio coefficient and the latest indoor unit nominal load ratio coefficient;
and adjusting the air volume of the new fan according to the control parameter.
Further, when executed by the processor, the multi-connected fresh air controller control program further implements the following operations:
acquiring a standard control range of the control parameter, and determining a falling value range of the control parameter according to the standard control range;
and adjusting the air volume of the new fan according to the falling value range of the control parameter.
Further, when executed by the processor, the multi-connected fresh air controller control program further implements the following operations:
acquiring the air volume of the current new fan;
and adjusting the air volume of the current new fan according to the falling value range of the control parameter.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. A control method of a multi-connected fresh air machine is characterized by comprising the following steps:
when a starting signal of a new fan is received, acquiring the statistical time length;
acquiring a first sub-internal-machine nominal load and a second sub-internal-machine nominal load in the statistical time period based on the statistical time period, wherein the first sub-internal-machine nominal load is the nominal load of a single internal machine in an operating state, and the second sub-internal-machine nominal load is the nominal load of a single internal machine in a shutdown state;
calculating a first indoor unit nominal load and a second indoor unit nominal load based on the first indoor unit nominal load and the second indoor unit nominal load;
adjusting the air volume of the fresh air fan according to the nominal load of the first inner machine and the nominal load of the second inner machine;
wherein the step of adjusting the air volume of the fresh air fan according to the nominal load of the first internal machine and the nominal load of the second internal machine comprises:
calculating a total indoor unit nominal load based on the first indoor unit nominal load and the second indoor unit nominal load;
calculating an indoor unit nominal load ratio coefficient based on the first indoor unit nominal load and the total indoor unit nominal load;
and adjusting the air volume of the new fan according to the nominal load ratio coefficient of the internal machine.
2. The control method of the multi-type fresh air machine according to claim 1, wherein the step of adjusting the air volume of the fresh air machine according to the indoor machine nominal load ratio coefficient comprises the following steps:
obtaining a current indoor unit nominal load ratio coefficient corresponding to the statistical duration and a latest indoor unit nominal load ratio coefficient;
and adjusting the air volume of the new fan according to the current indoor unit nominal load ratio coefficient and the latest indoor unit nominal load ratio coefficient.
3. The control method of the multi-connected fresh air machine according to claim 2, wherein the step of adjusting the air volume of the fresh air machine according to the current indoor machine nominal load ratio coefficient and the latest indoor machine nominal load ratio coefficient comprises:
calculating a control parameter of the new fan based on the current indoor unit nominal load ratio coefficient and the latest indoor unit nominal load ratio coefficient;
and adjusting the air volume of the new fan according to the control parameter.
4. The control method of the multi-connected fresh air machine according to claim 3, wherein the step of adjusting the air volume of the fresh air machine according to the control parameter comprises the following steps:
acquiring a standard control range of the control parameter, and determining a falling value range of the control parameter according to the standard control range;
and adjusting the air volume of the new fan according to the falling value range of the control parameter.
5. The control method of the multi-connected fresh air machine according to claim 4, wherein the step of adjusting the air volume of the fresh air machine according to the fall value range of the control parameter comprises the following steps:
acquiring the air volume of the current new fan;
and adjusting the air volume of the current new fan according to the falling value range of the control parameter.
6. A multi-split fresh air machine control device, characterized in that the multi-split fresh air machine control device comprises: a memory, a processor and a multi-connected fresh air control program stored on the memory and executable on the processor, the multi-connected fresh air control program when executed by the processor implementing the steps of the multi-connected fresh air control method according to any one of claims 1 to 5.
7. A computer-readable storage medium, characterized in that a multi-connected fresh air control program is stored on the computer-readable storage medium, which when executed by a processor implements the steps of the multi-connected fresh air control method according to any one of claims 1 to 5.
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| CN111121153B (en) * | 2019-12-20 | 2021-10-22 | 宁波奥克斯电气股份有限公司 | Multi-connected indoor unit and fresh air fan hybrid system and control method thereof |
| CN111121152B (en) * | 2019-12-20 | 2021-07-06 | 宁波奥克斯电气股份有限公司 | Multi-connected outdoor unit and fresh air fan mixed connection system and control method thereof |
| CN111426023B (en) * | 2020-04-03 | 2021-12-14 | 广东美的暖通设备有限公司 | Operation control method, operation control device, multi-split air conditioning system and storage medium |
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