CN111306743B - Air conditioner and multi-split central air conditioner - Google Patents
Air conditioner and multi-split central air conditioner Download PDFInfo
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- CN111306743B CN111306743B CN202010133955.XA CN202010133955A CN111306743B CN 111306743 B CN111306743 B CN 111306743B CN 202010133955 A CN202010133955 A CN 202010133955A CN 111306743 B CN111306743 B CN 111306743B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
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Abstract
The invention provides an air conditioner and a multi-split central air conditioner, wherein the air conditioner comprises: a plurality of first units, any first unit comprising: modulation circuit, first inductance and controlling means, wherein, the first inductance of a plurality of first units is connected through the bus, and controlling means is connected with modulation circuit, and controlling means is configured as: determining a total inductance value connected to the bus according to the first inductor in the working state; and controlling the modulation circuit to output a modulation signal of a first frequency according to the total inductance value. And determining a total inductance value connected to the bus according to the first inductor in the working state so as to control the frequency of the output modulation signal according to the total inductance value, and selecting a frequency suitable for the current state of the air conditioner to relieve the problem of electromagnetic compatibility and improve the running stability of the air conditioner.
Description
Technical Field
The invention relates to the technical field of communication control, in particular to an air conditioner and a multi-split central air conditioner.
Background
In the related technical solution, a Power over bus is a bus type, and the working principle of single transmission and reception is as shown in fig. 1, specifically, after data and a clock are modulated and received by OOK (On-Off Keying), the data and the clock are transmitted to a bus through a bus type transmitter, and a bus type receiver in a receiving end receives a signal from the bus, and obtains the data through envelope detection.
Those skilled in the art find that, during data transmission in the form of Power over bus, the higher the modulation frequency of OOK modulation, the smaller the volumes of the required coupling inductance and blocking capacitor, which is convenient for design placement and cost control of the control board, but the too high modulation frequency of OOK modulation is easy to cause the problem of electromagnetic compatibility.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
To this end, a first aspect of the present invention is to provide an air conditioner.
In a second aspect of the present invention, there is provided a multi-split central air conditioner.
In view of the above, according to a first aspect of the present invention, there is provided an air conditioner including: a plurality of first units, any first unit comprising: modulation circuit, first inductance and controlling means, wherein, the first inductance of a plurality of first units is connected through the bus, and controlling means is connected with modulation circuit, and controlling means is configured as: determining a total inductance value connected to the bus according to the first inductor in the working state; and controlling the modulation circuit to output a modulation signal of a first frequency according to the total inductance value.
The invention provides an air conditioner, wherein the air conditioner comprises: a plurality of first units, any first unit comprising: the first inductors of the plurality of first units are connected through a bus, and the control device is connected with the modulation circuit. And determining a total inductance value connected to the bus according to the first inductor in the working state so as to control the frequency of the output modulation signal according to the total inductance value, and selecting a frequency suitable for the current state of the air conditioner to relieve the problem of electromagnetic compatibility and improve the running stability of the air conditioner.
In addition, the air conditioner in the above technical solution provided by the present invention may further have the following additional technical features:
in the above technical solution, any one of the first units further includes: a detection circuit connected to the control device, the control device further configured to; receiving a data signal, controlling a modulation circuit to generate a first communication signal according to the data signal and a modulation signal of a second frequency output by the modulation circuit, and sending the first communication signal to a bus; the control detection circuit acquires second communication signals which are sent by the first units and correspond to the first communication signals, and determines the total inductance value according to the second communication signals.
In the technical scheme, the control device generates the first communication signal by sending the modulation signal with the second frequency to the bus, and receives the second communication signals which are sent by the plurality of first units and correspond to the first communication signal, so as to achieve the acquisition of the total inductance value on the bus.
The data signal may or may not include parameter information used when the air conditioner is operating.
In any of the above technical solutions, any of the first units further includes: the first end of the transceiver circuit is connected with the bus, the second end of the transceiver circuit is connected with the output end of the modulation circuit, the third end of the transceiver circuit is connected with the input end of the detection circuit, and the transceiver circuit is configured to: the method includes sending a first communication signal to a bus and receiving a second communication signal transmitted via the bus.
In the technical scheme, any unit can communicate through the bus by arranging the transceiver circuit, meanwhile, the transceiver circuit is respectively connected with the modulation circuit and the detection circuit, and compared with a single-transmitting or single-receiving circuit in the prior art, one circuit of the transceiver circuit can realize the functions of the two circuits, so that the complexity of the circuit of the air conditioner is reduced, and meanwhile, the cost of the air conditioner is controlled conveniently.
In any of the above technical solutions, any of the first units further includes: a capacitor, a first end of the capacitor being connected to the bus, a second end of the capacitor being connected to the transceiver circuitry, the capacitor being configured to: the method includes sending a first communication signal to a bus and receiving a second communication signal.
In the technical scheme, the capacitor is arranged to prevent a current signal on the bus from directly acting on the transceiver circuit, the modulation circuit, the detection circuit and the control device, so that the transceiver circuit, the modulation circuit, the detection circuit and the control device are damaged due to overcurrent, the running stability of the air conditioner is improved, meanwhile, the transceiver circuit can utilize the capacitor to send a first communication signal to the bus, receive a second communication signal and further realize communication among different units on the bus.
In any of the above technical solutions, the control device is specifically configured to: acquiring a resistance value of a load driven by a transceiver circuit; determining a first ratio of the total inductance value to the resistance value of the load; the product of the first ratio and a pre-stored coefficient is used as the modulation signal of the first frequency.
In the technical scheme, in order to realize that any first unit can communicate through the bus, the product of the prestored coefficient, the first frequency and the total inductance value needs to be greater than or equal to the resistance value of the load driven by the transceiver circuit, so that after the resistance value of the load driven by the transceiver circuit is obtained, the first ratio of the total inductance value to the resistance value of the load is determined; the product of the first ratio and the coefficient stored in advance is used as the modulation signal of the first frequency, and at the moment, the modulation signal of the minimum frequency which the air conditioner can work is used for operation, and the frequency of the modulation signal is relatively small, so that the problem of electromagnetic compatibility can be relieved.
In any of the above technical solutions, any of the first units further includes: the first power supply port is connected with the bus through a first inductor and is configured to receive an electric signal, transmit the electric signal to the bus or obtain the electric signal from the bus and output the electric signal through the first power supply port; the control device is further configured to determine that the first inductor is in the working state and send a second communication signal to the bus in response to the first communication signal.
In the technical scheme, when the first power supply port receives an electric signal, transmits the electric signal to the bus or obtains the electric signal from the bus, and outputs the electric signal through the first power supply port, the first unit can be loaded or supplies power to the bus, and meanwhile, when the first power supply port receives the electric signal or an output point signal, the first inductor is in a working state, at the moment, the control device of any first unit can respond to the first communication signal to send a second communication signal to the bus, so that the determination of the action state between any two first units on the bus is realized, meanwhile, the total inductance value is conveniently determined according to the response, the frequency of a modulation signal is further determined, and the problem of electromagnetic compatibility is solved.
In any of the above technical solutions, the first inductor of any of the first units is a first inductance value, and the control device is specifically configured to: determining and acquiring a quantity value of a first unit in a running state; and determining the total inductance value according to the quantity value of the first unit and the first inductance value.
In the technical scheme, the first inductor of any one first unit is the first inductance value, that is, the first inductors of any two first units are the same, so that the total inductance value can be determined by counting the number value of the first units in the running state, the calculation process of the total inductance value is simplified, and the calculation amount is reduced.
In any one of the above technical solutions, the air conditioner further includes a second unit, and the second unit includes: the control device is specifically configured to: determining a new total inductance value from the total inductance value and the second inductance; determining a second ratio of the new total inductance value to the resistance value of the load; and taking the product of the second ratio and a prestored coefficient as the modulation signal of the first frequency.
In the technical scheme, the air conditioner further comprises a second unit, wherein the second unit comprises a second inductor and a second power supply port, at the moment, the second power supply port can receive a point signal and supply power to the bus through the second inductor, so that the bus has enough electric energy to supply power to the first unit, the loading capacity of the first unit is ensured, and the stability of the air conditioner is improved.
In any of the above technical solutions, the first frequency and the second frequency are greater than or equal to a minimum value of the modulation signal and less than or equal to a maximum value of the modulation signal.
In the technical scheme, the first frequency and the second frequency are greater than or equal to the minimum value of the modulation signal and less than or equal to the maximum value of the modulation signal, so that communication can be performed between the first units in the air conditioner, and the problems that communication cannot be performed due to too low frequency of the modulation signal or the frequency of the modulation signal is too high, and further electromagnetic compatibility occurs are solved.
In any of the above technical solutions, the modulation circuit includes an or gate circuit, where a first input terminal of the or gate circuit receives the data signal, a second input terminal of the or gate circuit receives the modulation signal of the second frequency, and an output terminal of the or gate circuit outputs a first communication signal, where a first level signal in the first communication signal is a high level signal of the data signal, a second level signal in the first communication signal is a low level signal of the data signal, and the low level signal is replaced by the modulation signal of the second frequency.
In the technical scheme, a first level signal and a second level signal in a first communication signal correspond to a level signal of a data signal, specifically, the first level signal is a high level signal of the data signal, the second level signal in the first communication signal is a low level signal of the data signal, the low level signal is replaced by a modulation signal of a second frequency, and the modulation signal of the second frequency is integrated with the high level signal of the data signal, so that the anti-interference capability of the data signal is improved, wherein the first level signal is the high level signal, and the second level signal is the low level signal.
According to a second aspect of the present invention, the present invention provides a multi-split central air conditioner having the air conditioner provided in any one of the embodiments of the first aspect, and therefore, the embodiments of the present invention provide a multi-split central air conditioner having all the advantages of the air conditioner provided in any one of the embodiments of the first aspect, which are not listed here.
In the above technical solution, the first unit and/or the second unit of the air conditioner includes one or more of an indoor unit, an outdoor unit, a centralized controller and a line controller.
In the technical scheme, the first unit and/or the second unit of the air conditioner comprise one or more of an indoor unit, an outdoor unit, a centralized controller and a wire controller, so that the problem of electromagnetic compatibility among the indoor unit, the outdoor unit, the centralized controller and the wire controller is solved, and the stability of system operation is improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 illustrates an operational diagram of a single transmission and reception in the form of a bus according to the related art;
fig. 2 illustrates a connection diagram of an air conditioner according to an embodiment of the present invention;
fig. 3 illustrates a connection diagram of an air conditioner according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating a control method of an air conditioner according to an embodiment of the present invention;
fig. 5 is a flowchart illustrating a control method of an air conditioner according to an embodiment of the present invention;
FIG. 6 illustrates a schematic connection diagram of a first unit according to one embodiment of the present invention;
fig. 7 shows a connection schematic of a control circuit and a modulation circuit according to an embodiment of the invention.
Wherein, the correspondence between the reference numbers and the component names in fig. 2, fig. 3, fig. 6 and fig. 7 is:
100 air conditioner, 102 first group, 104 modulation circuit, 106 first inductance, 108 control device, 110 detection circuit, 112 transceiving circuit, 114 capacitance, 116 first power supply port, 118 second group, 120 second inductance, 122 second power supply port.
Detailed Description
So that the manner in which the above recited aspects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
Example one
As shown in fig. 2, according to a first aspect of the present invention, there is provided an air conditioner 100 including: a plurality of first units 102, any first unit 102 comprising: the modulation circuit 104, the first inductors 106, and the control device 108, wherein the first inductors 106 of the plurality of first assemblies 102 are connected via a bus, the control device 108 is connected to the modulation circuit 104, and the control device 108 is configured to: determining a total inductance value connected to the bus based on the first inductor 106 in the active state; the modulation circuit 104 is controlled to output a modulation signal of a first frequency according to the total inductance value.
The present invention provides an air conditioner 100, wherein the air conditioner 100 comprises: a plurality of first units 102, any first unit 102 comprising: the modulation circuit 104, the first inductors 106, and the control device 108, wherein the first inductors 106 of the plurality of first units 102 are connected via a bus, and the control device 108 is connected to the modulation circuit 104, in a normal condition, when any first unit 102 is in an operating state, the first inductor 106 will be in the operating state, and when the first inductor 106 operates, a pull-up and pull-down impedance is connected to the bus, and the pull-up and pull-down impedance will affect a level signal in a bus signal, so as to cause electromagnetic interference. The total inductance value connected to the bus is determined according to the first inductor 106 in the operating state, so that the frequency of the output modulation signal is controlled according to the total inductance value, and the problem of electromagnetic compatibility can be alleviated by selecting a frequency suitable for the current state of the air conditioner 100, thereby improving the stability of the operation of the air conditioner 100.
In the above embodiment, any of the first units 102 further includes: a detection circuit 110, the detection circuit 110 being connected to the control device 108, the control device 108 being further configured to; receiving the data signal, controlling the modulation circuit 104 to generate a first communication signal according to the data signal and the modulation signal of the second frequency output by the modulation circuit 104, and sending the first communication signal to the bus; the control detection circuit 110 obtains a second communication signal corresponding to the first communication signal transmitted by the plurality of first units 102, and determines a total inductance value according to the second communication signal.
In this embodiment, the control device 108 generates the first communication signal by sending a modulation signal with the second frequency to the bus, and receives the second communication signals corresponding to the first communication signal sent by the plurality of first units 102, so as to achieve the obtaining of the total inductance value on the bus, it is understood that the above process may be an initialization process of the air conditioner 100, and the modulation signal with the first frequency is controlled to be output according to the obtained total inductance value, and the output of the modulation signal with the proper frequency may alleviate the problem of electromagnetic compatibility, thereby improving the operation stability of the air conditioner 100.
The data signal may or may not include parameter information used when the air conditioner 100 operates.
In one embodiment, as shown in fig. 2, any of the first units 102 further includes: a transceiver circuit 112, a first terminal of the transceiver circuit 112 is connected to the bus, a second terminal of the transceiver circuit 112 is connected to the output terminal of the modulation circuit 104, a third terminal of the transceiver circuit 112 is connected to the input terminal of the detection circuit 110, the transceiver circuit 112 is configured to: the method includes sending a first communication signal to a bus and receiving a second communication signal transmitted via the bus.
In this embodiment, the transceiver circuit 112 is arranged to enable any unit to communicate via a bus, and meanwhile, the transceiver circuit 112 is respectively connected to the modulation circuit 104 and the detection circuit 110, and compared with a single-transmitter or single-receiver circuit in the prior art, one circuit of the transceiver circuit 112 can implement the functions of the two circuits, which is convenient for reducing the complexity of the circuit of the air conditioner 100 and simultaneously is convenient for controlling the cost of the air conditioner 100.
In one embodiment, the transceiver circuit 112 is a bus transceiver.
In one embodiment, as shown in fig. 2, any of the first units 102 further includes: a capacitor 114, a first terminal of the capacitor 114 being connected to the bus, a second terminal of the capacitor 114 being connected to the transceiver circuitry 112, the capacitor 114 being configured to: the method includes sending a first communication signal to a bus and receiving a second communication signal.
In this embodiment, the capacitor 114 is arranged to prevent the current signal on the bus from directly acting on the transceiver circuit 112, the modulation circuit 104, the detection circuit 110 and the control device 108, thereby causing damage to the transceiver circuit 112, the modulation circuit 104, the detection circuit 110 and the control device 108 due to overcurrent, and improving the stability of the operation of the air conditioner 100, and meanwhile, the transceiver circuit 112 may transmit the first communication signal to the bus by using the capacitor 114 and receive the second communication signal, thereby achieving communication between different units on the bus.
In one embodiment, not shown in the figure, the capacitor 114 includes a first capacitor 114 and a second capacitor 114, wherein the first capacitor 114 and the second capacitor 114 are respectively connected in series in a first line and a second line of the bus, specifically, a first end of the first capacitor 114 is connected to the first line, a second end of the first capacitor 114 is connected to the transceiver circuit 112, a first end of the second capacitor 114 is connected to the second line, and a second end of the second capacitor 114 is connected to the transceiver circuit 112.
In one embodiment, the control device 108 is specifically configured to: acquiring the resistance value of the load driven by the transceiver circuit 112; determining a first ratio of the total inductance value to the resistance value of the load; the product of the first ratio and a pre-stored coefficient is used as the modulation signal of the first frequency.
In this embodiment, in order to enable any first unit 102 to communicate via the bus, a product of the prestored coefficient, the first frequency and the total inductance value needs to be greater than or equal to the resistance value of the load driven by the transceiver circuit 112, specifically, it needs to satisfy 2 pi fL ≧ R, where pi is the circumference ratio, f is the frequency of the modulation signal, L is the total inductance value, and R is the resistance value of the load driven by the transceiver circuit 112, and therefore, after the resistance value of the load driven by the transceiver circuit 112 is obtained, the first ratio of the total inductance value to the resistance value of the load is determined; taking the product of the first ratio and the coefficient stored in advance as the modulation signal of the first frequency, at this time, the modulation signal of the minimum frequency with which the air conditioner 100 can work is used for operation, and it can be understood that f is selected as small as possible when the condition that 2 pi fL ≧ R is satisfied, and since the frequency of the modulation signal is relatively small, the problem of electromagnetic compatibility can be alleviated.
In one embodiment, the total inductance value is equal to the parallel value of the first inductor 106 in the operating state.
In one embodiment, the load in the resistance value of the load driven by the transceiver circuit 112 may be a driving circuit of an electronic expansion valve, or may be a driving circuit of a switching tube in any unit.
In one embodiment, the first frequency and the second frequency are greater than or equal to a minimum value of the modulation signal and less than or equal to a maximum value of the modulation signal.
In this embodiment, the first frequency and the second frequency are greater than or equal to the minimum value of the modulation signal and less than or equal to the maximum value of the modulation signal, so as to ensure that the first unit 102 in the air conditioner 100 can communicate with each other, and avoid the problem of electromagnetic compatibility caused by the fact that the frequency of the modulation signal is too low to cause failure in communication or the frequency of the modulation signal is too high.
In any of the above embodiments, the modulation circuit 104 includes an or gate circuit, wherein a first input terminal of the or gate circuit receives the data signal, a second input terminal of the or gate circuit receives the modulation signal of the second frequency, and an output terminal of the or gate circuit outputs a first communication signal, wherein the first level signal in the first communication signal is a high level signal of the data signal, the second level signal in the first communication signal is a low level signal of the data signal, and the low level signal is replaced by the modulation signal of the second frequency.
In this embodiment, the first level signal and the second level signal in the first communication signal correspond to a level signal of the data signal, specifically, the first level signal is a high level signal of the data signal, the second level signal in the first communication signal is a low level signal of the data signal, and the low level signal is replaced by a modulation signal of the second frequency, and by integrating the modulation signal of the second frequency with the high level signal of the data signal, the interference rejection capability of the data signal is improved, wherein the first level signal is a high level signal and the second level signal is a low level signal, during this process, the high level signal of the data signal, that is, the high level signal in the first communication signal, reduces the possibility of data loss, and improves the reliability of the operation of the air conditioner 100.
In one embodiment, the first inductor 106 of any of the first assemblies 102 is a first inductance value, and the control device 108 is specifically configured to: determining and acquiring a quantity value of the first unit 102 in a running state; the total inductance value is determined based on the magnitude value of the first bank 102 and the first inductance value.
In this embodiment, the first inductor 106 of any one of the first groups 102 is a first inductance value, that is, the first inductors 106 of any two of the first groups 102 are the same, so that the total inductance value can be determined by counting the number values of the first groups 102 in the operating state, the calculation procedure of the total inductance value is simplified, and the calculation amount is reduced.
Specifically, when there are N first inductors 106, the total inductance is the first inductance/N.
In any of the above embodiments, the clock provides modulation signals of different frequencies to the modulation circuit 104, as shown in fig. 2.
Example two
In any of the above embodiments, as shown in fig. 2, any of the first units 102 further includes: a first power supply port 116, the first power supply port 116 being connected to the bus through the first inductor 106, the first power supply port 116 being configured to receive an electrical signal, transmit the electrical signal to the bus or obtain the electrical signal from the bus, and output the electrical signal via the first power supply port 116; the control device 108 is further configured to determine that the first inductor 106 is in the active state and send a second communication signal to the bus in response to the first communication signal.
In this embodiment, when the first power supply port 116 receives an electrical signal, and transmits the electrical signal to the bus or obtains the electrical signal from the bus, and outputs the electrical signal through the first power supply port 116, the first unit 102 may be loaded or supplies power to the bus, and meanwhile, when the first power supply port 116 receives the electrical signal or an output point signal, the first inductor 106 is in a working state, at this time, the control device 108 of any first unit 102 may send a second communication signal to the bus in response to the first communication signal, so as to determine an action state between any two first units 102 on the bus, and meanwhile, it is also convenient to determine a total inductance value according to the response, and further determine a frequency of a modulation signal, and alleviate the problem of electromagnetic compatibility.
In one embodiment, the first power supply port 116 supplies power to any circuit or device included in the unit, wherein the circuit may be the detection circuit 110 and the modulation circuit 104, and the device may be the control device 108, such as an electronic expansion valve.
In one embodiment, whether the first power supply port 116 needs to draw power from the bus depends on the requirement of any unit, and when the load such as the electronic expansion valve connected to the first unit 102 needs to operate, the load has the requirement, and thus power is drawn from the bus.
In any of the above embodiments, the modulation circuit 104, the first inductor 106, the detection circuit 110, the transceiver circuit 112, the capacitor 114 and the first power supply port 116 may be presented to the user in an integrated form, such as being a power over bus unit, controlled by the control device 108 in the first unit 102.
EXAMPLE III
In any of the above embodiments, as shown in fig. 3, the air conditioner 100 further includes a second unit 118, and the second unit 118 includes: a second inductor 120 and a second power supply port 122, the second power supply port 122 being connected to the bus via the second inductor 120, the control device 108 being specifically configured to: determining a new total inductance value from the total inductance value and the second inductor 120; determining a second ratio of the new total inductance value to the resistance value of the load; and taking the product of the second ratio and a prestored coefficient as the modulation signal of the first frequency.
In this embodiment, the air conditioner 100 further includes a second set 118, wherein the second set 118 includes a second inductor 120 and a second power supply port 122, and at this time, the second power supply port 122 may receive a point signal and supply power to the bus through the second inductor 120, so that the bus has enough power to supply power to the first set 102, and meanwhile, the load capacity of the first set 102 is ensured, and the stability of the air conditioner 100 is improved.
Example four
In any of the above embodiments, one of the plurality of first units may be selected as a master, and the remaining units and the second unit of the plurality of first units may be selected as slaves, where as shown in fig. 4, the control method of the air conditioner includes:
in step 410, the unit communicates with the new frequency value f 1.
In this embodiment, the control method of the air conditioner further includes:
in step 414, the slave is powered off and step 408 is performed.
The 'unit operation' represents that all first units in the air conditioner are started, the bus power supply is not started, the first power supply port is in an idle state, and under the normal condition, the first power supply port has three states, namely a power supply state, a power taking state and an idle state in which power is not supplied or taken, the power supply state provides a point signal for the bus, and the power taking state obtains the point signal from the bus.
The slave applying for turning on the power supply may be understood as that when the first set serving as the slave activates the first power supply port belonging to itself, the first set needs to send the application for turning on the power supply to the host, the host records the number of the total power supply operating sets (i.e., calculates the total inductance value), calculates the new frequency value f1 (i.e., the modulation signal of the first frequency referred to herein), and sends the frequency modulation command may be that the control device of the host issues the modulation signal of the first frequency to the bus through the bus, so that the slave connected through the bus operates according to the modulation signal of the first frequency.
In one embodiment of the present invention, as shown in fig. 5, a control method of an air conditioner includes:
at step 510, the crew communicates with the new frequency value f 1.
In this embodiment, after the execution of step 510 ends, the control method of the air conditioner further includes: step 506 is repeated.
In the above embodiment, the "unit operation" represents that all the first units in the air conditioner are turned on, the unit communicates with the lowest unit f0 "and the" unit communicates with the highest unit fmax "represents different states of communication started after the air conditioner is turned on, where fmax is the maximum value of the modulation signal, and after the air conditioner is turned on, communication may be started with f0 or f2(0 ≦ f2 ≦ fmax); the subsequent host computer calculates the frequency according to the number of the units actually starting the power supply working unit in the air conditioner, and then adjusts the communication frequency (namely, determines the modulation signal of the first frequency), and each time the power supply state of the unit is switched, the host computer is informed or detected, whether the frequency is required to be adjusted each time is judged by the host computer program, and each time the communication frequency is changed, the host computer informs the slave computer to change.
Specifically, as shown in fig. 6, the control device 108 in the first host is connected to a frequency that is connected to the modulation circuit 104, it being understood that the frequency functions as the clock in fig. 2 for providing a modulation signal of a different frequency to the modulation circuit 104.
The control device 108 and the frequency in fig. 6 may be integrated together and connected to the modulation circuit 104 in the form of the control device 108, and similarly, the control device 108 and the clock in fig. 2 also have a connection relationship and may also be integrated together to realize the integration of the components of the first unit, so as to reduce the occupied space.
As shown in fig. 7, the modulation circuit 104 is an or gate, and the frequency f and the data D given by the control device 108 can obtain new signals DfQ, such as 1 × 1 and 0 × x, through the or gate, the new signals are composed of a high level of 0Hz representing the high level of the original data and a square wave of frequency f representing the low level of the original data, and are transmitted to the transceiver (i.e., a bus type transceiver) to be transmitted to the bus. The frequency in this embodiment can be adjusted by the control device 108, which facilitates adjustment according to actual use conditions and facilitates performance and parameter optimization.
EXAMPLE five
The invention provides a multi-split central air conditioner (not shown in the figures), which is provided with the air conditioner provided by any embodiment of the first aspect, therefore, the multi-split central air conditioner provided by the embodiment of the invention has all the beneficial effects of the air conditioner provided by any embodiment of the first aspect, which are not listed here.
In the above embodiments, the first unit and/or the second unit of the air conditioner includes one or more of an indoor unit, an outdoor unit, a centralized controller, and a line controller.
In this embodiment, the first unit and/or the second unit of the air conditioner includes one or more of an indoor unit, an outdoor unit, a centralized controller and a line controller, so that the problem of electromagnetic compatibility among the indoor unit, the outdoor unit, the centralized controller and the line controller is solved, and the stability of system operation is improved.
In the description of the present invention, the terms "plurality" or "a plurality" refer to two or more, and unless otherwise specifically limited, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention; the terms "connected," "mounted," "secured," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In the present invention, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (12)
1. An air conditioner, characterized in that the air conditioner comprises:
a plurality of first units, any of the first units comprising: the first inductors of a plurality of the first units are connected through a bus, and the control device is connected with the modulation circuit and configured to:
determining a total inductance value connected to the bus according to the first inductor in the working state;
and controlling the modulation circuit to output a modulation signal of a first frequency according to the total inductance value.
2. The air conditioner according to claim 1, wherein any one of said first units further comprises:
a detection circuit connected with the control device, the control device further configured to;
receiving a data signal, controlling the modulation circuit to generate a first communication signal according to the data signal and a modulation signal of a second frequency output by the modulation circuit, and sending the first communication signal to the bus;
and controlling the detection circuit to acquire a plurality of second communication signals which are sent by the first unit and correspond to the first communication signals, and determining the total inductance value according to the second communication signals.
3. The air conditioner according to claim 2, wherein any one of said first units further comprises:
a transceiver circuit, a first end of the transceiver circuit being connected to the bus, a second end of the transceiver circuit being connected to the output of the modulation circuit, and a third end of the transceiver circuit being connected to the input of the detection circuit, the transceiver circuit being configured to:
sending the first communication signal to the bus, an
Receiving the second communication signal transmitted via the bus.
4. The air conditioner according to claim 3, wherein any one of said first units further comprises:
a capacitor, a first end of the capacitor connected with the bus, a second end of the capacitor connected with the transceiver circuitry, the capacitor configured to:
sending the first communication signal to the bus, and receiving the second communication signal.
5. The air conditioner according to claim 3, wherein the control device is specifically configured to:
acquiring a resistance value of a load driven by the transceiver circuit;
determining a first ratio of the total inductance value to a resistance value of the load;
and taking the product of the first ratio and a prestored coefficient as the modulation signal of the first frequency.
6. The air conditioner according to any one of claims 2 to 5, wherein any one of the first units further comprises:
a first power port connected with the bus through the first inductor, the first power port configured to receive an electrical signal and transmit the electrical signal to the bus or
Acquiring an electrical signal from the bus and outputting the electrical signal through the first power supply port;
the control device is further configured to determine that the first inductor is in an operating state and send the second communication signal to the bus in response to the first communication signal.
7. The air conditioner of claim 6, wherein the first inductance of any of the first banks is a first inductance value, and the control device is specifically configured to:
determining and acquiring the quantity value of the first unit in the running state;
determining the total inductance value according to the quantity value of the first unit and the first inductance value.
8. The air conditioner of claim 5, further comprising a second unit, the second unit comprising:
a second inductor and a second power supply port, the second power supply port being connected to the bus via the second inductor, the control device being configured to:
determining a new total inductance value from the total inductance value and the second inductance;
determining a second ratio of the new total inductance value to the resistance value of the load;
and taking the product of the second ratio and a prestored coefficient as the modulation signal of the first frequency.
9. The air conditioner according to any one of claims 2 to 5, wherein the first frequency and the second frequency are greater than or equal to a minimum value of the modulation signal and less than or equal to a maximum value of the modulation signal.
10. The air conditioner according to any one of claims 2 to 5, wherein the modulation circuit comprises an OR gate, wherein a first input terminal of the OR gate receives the data signal, a second input terminal of the OR gate receives the modulation signal of the second frequency, and an output terminal of the OR gate outputs the first communication signal,
wherein a first level signal in the first communication signal is a high level signal of the data signal, a second level signal in the first communication signal is a low level signal of the data signal, and the low level signal is replaced by the modulation signal of the second frequency.
11. A multi-split central air conditioner is characterized by comprising:
the air conditioner as claimed in any one of claims 1 to 10.
12. A multi-split central air conditioner as claimed in claim 11, wherein the first and/or second unit of the air conditioner includes one or more of an indoor unit, an outdoor unit, a central controller and a line controller.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009212931A (en) * | 2008-03-05 | 2009-09-17 | Denso Corp | Address setting system and address setting method |
| CN104994269A (en) * | 2015-07-22 | 2015-10-21 | 杭州海康威视数字技术股份有限公司 | Power supply equipment and power supply control method and device for image acquisition equipment |
| CN106253495A (en) * | 2016-08-04 | 2016-12-21 | 中惠创智无线供电技术有限公司 | A kind of amplitude limit control circuit and method |
| CN107525207A (en) * | 2016-06-20 | 2017-12-29 | Lg电子株式会社 | Air regulator and its communication means |
| CN108592293A (en) * | 2018-04-28 | 2018-09-28 | 四川虹美智能科技有限公司 | A kind of air-conditioning failure detector and detection method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8711711B2 (en) * | 2008-10-31 | 2014-04-29 | Howard University | System and method of detecting and locating intermittent and other faults |
| CN102013868B (en) * | 2010-11-30 | 2013-11-20 | 中山大学 | Numerical control variable inductance |
| CN103075782B (en) * | 2012-12-20 | 2015-06-17 | 四川长虹电器股份有限公司 | Non-polar power supplying communication system of multi-connection type air conditioner |
| CN110762808A (en) * | 2019-10-31 | 2020-02-07 | 广东美的制冷设备有限公司 | Drive control circuit and air conditioner |
-
2020
- 2020-03-02 CN CN202010133955.XA patent/CN111306743B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009212931A (en) * | 2008-03-05 | 2009-09-17 | Denso Corp | Address setting system and address setting method |
| CN104994269A (en) * | 2015-07-22 | 2015-10-21 | 杭州海康威视数字技术股份有限公司 | Power supply equipment and power supply control method and device for image acquisition equipment |
| CN107525207A (en) * | 2016-06-20 | 2017-12-29 | Lg电子株式会社 | Air regulator and its communication means |
| CN106253495A (en) * | 2016-08-04 | 2016-12-21 | 中惠创智无线供电技术有限公司 | A kind of amplitude limit control circuit and method |
| CN108592293A (en) * | 2018-04-28 | 2018-09-28 | 四川虹美智能科技有限公司 | A kind of air-conditioning failure detector and detection method |
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