CN108278731A - Communication circuit, control method thereof, storage medium, and processor - Google Patents
Communication circuit, control method thereof, storage medium, and processor Download PDFInfo
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- CN108278731A CN108278731A CN201810001920.3A CN201810001920A CN108278731A CN 108278731 A CN108278731 A CN 108278731A CN 201810001920 A CN201810001920 A CN 201810001920A CN 108278731 A CN108278731 A CN 108278731A
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Abstract
The invention discloses a communication circuit, a control method thereof, a storage medium and a processor. Wherein, this communication circuit includes: the switchable power supply circuit is arranged in an outdoor unit of the air conditioner, is connected with a live wire port of the outdoor unit and a zero line port of the outdoor unit and is used for providing at least two power supplies with different voltages, wherein the live wire port of the outdoor unit is connected with a live wire port of an indoor unit of the air conditioner; the switchable resistance circuit is arranged in the outdoor unit, is connected with a communication port of the outdoor unit and is used for providing at least two resistors with different resistance values; the current detector is connected with the switchable resistance circuit in series and is used for detecting the current of the communication circuit; the outer machine communication circuit is connected with the switchable power supply circuit and the switchable resistance circuit, and the inner machine communication circuit is connected with the communication port of the inner machine, the fire wire port of the inner machine and the zero wire port of the inner machine. The invention solves the technical problem of the reliability reduction of the communication circuit caused by the large change of the loop current in the communication circuit.
Description
Technical field
The present invention relates to field of air conditioning, in particular to a kind of communicating circuit and its control method, storage medium and place
Manage device.
Background technology
General convertible frequency air-conditioner internal-external machine uses zero firewire communicating circuit, outside the firewire, zero curve, ground wire of internal-external machine connection again
Increase by a connection, when internal-external machine has electricity after power-on of air conditioner, internal-external machine communicates always after shaking hands successfully according to communications protocol.
This communicating circuit is simple, of low cost, is suitable for low-frequency simple internal-external machine communication.
But because when power-on of air conditioner is standby and shutdown does not power off internal-external machine have electricity always and communicate, cause communication line and
Device aging, another certain customers are because infield reason can lengthen connection, along with originals such as communications line termination contact resistance
Cause causes former communicating circuit intermediate ring road curent change very big, along with the reasons communicating circuit reliability drop such as mains supply interference
It is low or even communication failure occur.
For above-mentioned problem, currently no effective solution has been proposed.
Invention content
An embodiment of the present invention provides a kind of communicating circuit and its control method, storage medium and processors, at least to solve
Certainly communicating circuit intermediate ring road curent change it is bigger and cause communicating circuit reliability reduce the technical issues of.
One side according to the ... of the embodiment of the present invention provides a kind of communicating circuit of air conditioner, including：Switchable power supply
Circuit is arranged in the outdoor unit of the air conditioner, connects the zero line side of the FireWire port port and the outdoor unit of the outdoor unit
Mouthful, the power supply for providing at least two different voltages, wherein the FireWire port port of the outdoor unit connects the room of the air conditioner
The FireWire port port of interior machine；Changeable resistance circuit, is arranged in the outdoor unit, connects the PORT COM of the outdoor unit, uses
In the resistance for providing at least two different resistance values, wherein the PORT COM of the outdoor unit connects the communication of the indoor unit
Port；Current detecting instrument is connected with the changeable resistance circuit, the electric current for detecting the communicating circuit；Outer machine communication
Circuit, connects the switchable power supply circuit and the changeable resistance circuit, and interior machine communicating circuit connects the indoor unit
The zero curve port of PORT COM, the FireWire port port of the indoor unit and the indoor unit.
Further, the changeable resistance circuit includes at least：First resistor branch, the first resistor branch include
Concatenated first resistor and first switch, the first switch for control the first resistor access the communicating circuit or
It is disconnected from the communicating circuit；Second resistance branch, the second resistance branch and the first resistor branch circuit parallel connection, described the
Two resistance branch include concatenated second resistance and second switch, and the second switch is for controlling second resistance access institute
It states communicating circuit or is disconnected from the communicating circuit, the resistance value of the resistance value of the first resistor and the second resistance is not
Together.
Further, the switchable power supply circuit includes at least：First power branch, first power branch include
Third switchs and the first power supply, and third switch is for controlling communicating circuit described in first plant-grid connection or from described
Communicating circuit disconnects；Second source branch, the second source branch include the 4th switch and second source, wherein described the
The voltage value of one power supply is different with the voltage value of the second source, and the 4th switch is for controlling the second source access
The communicating circuit is disconnected from the communicating circuit.
Further, by default, the access of one of power supply of at least two different voltages is described logical
Circuit is interrogated, one of resistance of at least two different resistance values accesses the communicating circuit.
Further, the case where electric current of the communicating circuit is not in preset range is detected in the current detecting instrument
Under, the switchable power supply circuit carries out power supply switching or the changeable resistance circuit carries out resistance switching.
Another aspect according to the ... of the embodiment of the present invention additionally provides a kind of control method of communicating circuit, including：Detection is empty
The loop current of the communicating circuit communicated between the indoor unit and outdoor unit of tune；Judge the loop current whether default
In range；When detecting the loop current not in the preset range, controls the communicating circuit and switch the communication
Resistance is in adjust the loop current in the preset range in power supply or the switching communicating circuit in circuit.
Further, the communicating circuit is controlled to switch the power supply in the communicating circuit or switch the communicating circuit
Middle resistance includes：When the loop current is more than the maximum value of the preset range, the communicating circuit is controlled by the electricity
Source is switched to the power supply of second voltage by the power supply of first voltage, wherein the first voltage is higher than the second voltage；Or
When the loop current is more than the maximum value of the preset range, the communicating circuit is controlled by the resistance by the first resistance value
Resistance be switched to the resistance of the second resistance value, wherein first resistance value is less than the second resistance.
Further, the electricity that the power supply is switched to second voltage by the communicating circuit by the power supply of first voltage is controlled
Source includes：It first controls the communicating circuit and disconnects the voltage of the first voltage, then connect the power supply of the second voltage.
Further, the communicating circuit is controlled to switch the power supply in the communicating circuit or switch the communicating circuit
Middle resistance includes：When the loop current is less than the minimum value of the preset range, the communicating circuit is controlled by the electricity
Source is switched to the power supply of the 4th voltage by the power supply of tertiary voltage, wherein the tertiary voltage is less than the 4th voltage；Or
When the loop current is less than the minimum value of the preset range, the communicating circuit is controlled by the resistance by 3rd resistor
The resistance of value is switched to the resistance of the 4th resistance value, wherein the 3rd resistor value is higher than the 4th resistance value.
Further, the electricity that the power supply is switched to the 4th voltage by the communicating circuit by the power supply of tertiary voltage is controlled
Source includes：It first controls the communicating circuit and disconnects the voltage of the tertiary voltage, then connect the power supply of the 4th voltage.
Another aspect according to the ... of the embodiment of the present invention, additionally provides a kind of storage medium, and the storage medium includes storage
Program, wherein described program executes the control method of above-mentioned communicating circuit.
Another aspect according to the ... of the embodiment of the present invention additionally provides a kind of reason device, and the processor is used to run program,
In, described program executes the control method of above-mentioned communicating circuit when running.
Changeable resistance circuit and switchable power supply circuit and current detecting is arranged in the present embodiment in communicating circuit
Instrument, when electric current needs to adjust, controls and resistance can be switched and can be switched using the electric current in current detecting instrument detection communicating circuit
Power supply adjusts the electric current in communicating circuit, so that the electric current in communicating circuit maintains within a preset range, to avoid communicating
The electric current of circuit leads to the problem of variation and the reliability of the communicating circuit caused by communication line and device aging is caused to reduce, from
And reached the technique effect for the reliability for improving communicating circuit, avoid the damage of communicating circuit.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and is constituted part of this application, this hair
Bright illustrative embodiments and their description are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is the circuit diagram according to the communicating circuit of the air conditioner of inventive embodiments；
Fig. 2 is the circuit diagram of preferred communicating circuit according to the ... of the embodiment of the present invention；
Fig. 3 is the flow chart of the control method of communicating circuit according to the ... of the embodiment of the present invention.
Specific implementation mode
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The every other embodiment that member is obtained without making creative work should all belong to the model that the present invention protects
It encloses.
It should be noted that term " first " in description and claims of this specification and above-mentioned attached drawing, "
Two " etc. be for distinguishing similar object, without being used to describe specific sequence or precedence.It should be appreciated that using in this way
Data can be interchanged in the appropriate case, so as to the embodiment of the present invention described herein can in addition to illustrating herein or
Sequence other than those of description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that cover
It includes to be not necessarily limited to for example, containing the process of series of steps or unit, method, system, product or equipment to cover non-exclusive
Those of clearly list step or unit, but may include not listing clearly or for these processes, method, product
Or the other steps or unit that equipment is intrinsic.
An embodiment of the present invention provides a kind of communicating circuits of air conditioner.Fig. 1 is the air conditioner according to inventive embodiments
The circuit diagram of communicating circuit.As shown in Figure 1, the communicating circuit of the air conditioner includes：
Switchable power supply circuit 10 is arranged in the outdoor unit of the air conditioner, connects the FireWire port port of the outdoor unit
The zero curve port N1 of L1 and the outdoor unit, the power supply for providing at least two different voltages, wherein the fire of the outdoor unit
Line end mouth L1 connects the FireWire port port L2 of the indoor unit of the air conditioner.
The switchable power supply circuit includes at least：First power branch, first power branch include third switch
With the first power supply, third switch is for controlling communicating circuit described in first plant-grid connection or from the communicating circuit
It disconnects；Second source branch, the second source branch include the 4th switch and second source, wherein first power supply
Voltage value is different with the voltage value of the second source, and the 4th switch accesses the communication for controlling the second source
Circuit is disconnected from the communicating circuit.
As shown in Figure 1, switchable power supply circuit includes three power branch.First power branch includes switch K1 and can
The first power supply of 50V voltages is provided, second source branch includes switch K2 and is capable of providing the second source of 56V voltages, third
Power branch includes switch K3 and is capable of providing the third power supply of 60V voltages.
Under default situations, one of K1, K2 and K3 three is to be in closed state, and generally use K2 is closed, and is logical
The voltage that news circuit provides 56V can open K2 when needing Switching power, be then shut off switch K1 or switch K3.
Changeable resistance circuit 20, is arranged in the outdoor unit 1, connects the PORT COM COM1 of the outdoor unit 1, uses
In the resistance for providing at least two different resistance values, wherein the PORT COM COM1 of the outdoor unit connects the indoor unit 2
PORT COM COM2；
The changeable resistance circuit includes at least：First resistor branch, the first resistor branch include concatenated
One resistance and first switch, the first switch is for controlling the first resistor access communicating circuit or leading to from described
Circuit is interrogated to disconnect；Second resistance branch, the second resistance branch and the first resistor branch circuit parallel connection, the second resistance branch
Road includes concatenated second resistance and second switch, and the second switch accesses the communication electricity for controlling the second resistance
Road is disconnected from the communicating circuit, and the resistance value of the first resistor is different with the resistance value of the second resistance.
As shown in Figure 1, changeable resistance circuit includes three resistance branch.First resistor branch includes switch K4 and resistance
Value is 10K ohm of first resistor, the second resistance that second resistance branch includes switch K5 and resistance value is 13K ohm, third
The 3rd resistor that resistance branch includes switch K6 and resistance value is 15K ohm.
Under default situations, one of K4, K5 and K6 three is to be in closed state, and generally use K4 is closed, and is logical
The resistance value that news circuit provides 13K ohm can open K5 when needing convert resistance, be then shut off switch K4 or switch
K6。
In the present embodiment, by default, described in the access of one of power supply of at least two different voltages
Communicating circuit, one of resistance of at least two different resistance values access the communicating circuit.
The present embodiment detects the electric current in communicating circuit by current detecting instrument 30.Current detecting instrument 30 is cut with described
Change resistance circuit series connection, the electric current for detecting the communicating circuit；The communicating circuit is detected in the current detecting instrument
Electric current not in the case of preset range, the switchable power supply circuit carries out power supply switching or the changeable resistance electricity
Road carries out resistance switching.
In the electric current for needing to be turned up in communicating circuit, the voltage or the low-resistance resistance value of drop of power supply can be improved,
The voltage of power supply can also be improved simultaneously and drops low-resistance resistance value.It, can in the electric current in needing reduction communicating circuit
To reduce the voltage of power supply or rise high-resistance resistance value, the voltage of power supply can also be reduced simultaneously and rises high-resistance electricity
Resistance value.
Outer machine communicating circuit 40 connects the switchable power supply circuit and the changeable resistance circuit,
Interior machine communicating circuit 50, connect the PORT COM COM2 of the indoor unit 2, the FireWire port port L2 of the indoor unit and
The zero curve port N2 of the indoor unit.
The ground wire port PE2 of indoor unit is connected with the ground wire port PE1 of outdoor unit.
Changeable resistance circuit and switchable power supply circuit and current detecting is arranged in the present embodiment in communicating circuit
Instrument, when electric current needs to adjust, controls and resistance can be switched and can be switched using the electric current in current detecting instrument detection communicating circuit
Power supply adjusts the electric current in communicating circuit, so that the electric current in communicating circuit maintains within a preset range, to avoid communicating
The electric current of circuit leads to the problem of variation and the reliability of the communicating circuit caused by communication line and device aging is caused to reduce, from
And reached the technique effect for the reliability for improving communicating circuit, avoid the damage of communicating circuit.
Fig. 2 is the circuit diagram of preferred communicating circuit according to the ... of the embodiment of the present invention.It can as shown in Fig. 2, being provided in outer machine
Switching power circuit S1, changeable resistance circuit S2 and current detecting instrument S3, current detecting instrument S3 can be ammeter.Fig. 2
In outer machine, that is, outdoor unit of the air conditioner, the indoor unit of interior machine, that is, air conditioner.
According to embodiments of the present invention, a kind of embodiment of the method for the control method of communicating circuit is provided, needs to illustrate
It is that step shown in the flowchart of the accompanying drawings can execute in the computer system of such as a group of computer-executable instructions,
Also, although logical order is shown in flow charts, and it in some cases, can be to be executed different from sequence herein
Shown or described step.
Fig. 3 is the flow chart of the control method of communicating circuit according to the ... of the embodiment of the present invention, as shown in figure 3, this method packet
Include following steps：
Step S302 detects the loop current of the communicating circuit communicated between the indoor unit of air-conditioning and outdoor unit；
Communicating circuit forms loop between indoor machine and outdoor unit, and the electric current for detecting the loop obtains loop current.It is logical
Normal loop circuit is maintained in the range of 2-3mA, the stability of communicating circuit can be caused poor beyond the range, or even damage
It is bad.
Within a preset range whether step S304 judge loop current；
Judge whether loop current is less than 2mA and is either more than 3mA the case where loop current is less than 2mA or is more than 3mA
Under, illustrate in the loop circuit no longer preset range.
Step S306, when detecting loop current not within a preset range, communication control circuit switches in communicating circuit
Power supply or switching communicating circuit in resistance be in preset range to adjust loop current.
The present embodiment detects the loop current of communicating circuit, when loop current no longer preset range needs to adjust, adjusts
Power supply or resistance in communicating circuit, so that the electric current in communicating circuit maintains within a preset range, to avoid communicating circuit
Electric current lead to the problem of variation the reliability of communicating circuit caused by communication line and device aging caused to reduce, to reach
The technique effect for having arrived the reliability for improving communicating circuit, avoids the damage of communicating circuit.
Optionally, it controls in power supply or the switching communicating circuit that the communicating circuit switches in the communicating circuit
Resistance includes：When the loop current is more than the maximum value of the preset range, the communicating circuit is controlled by the power supply
The power supply of second voltage is switched to by the power supply of first voltage, wherein the first voltage is higher than the second voltage；Or
When the loop current is more than the maximum value of the preset range, the communicating circuit is controlled by the resistance by the first resistance value
Resistance is switched to the resistance of the second resistance value, wherein first resistance value is less than the second resistance.
It when loop current is more than the maximum value of preset range, needs to reduce loop current, according to I=U/R, reduces loop
Electric current can obtain relatively low loop current by reducing power supply or putting forward high-resistance mode.Therefore, it can will communicate
Power supply in circuit is switched to the power supply of low voltage from the power supply of high voltage；Or by the resistance in communicating circuit from relatively low
Resistance value be switched to relatively high resistance value.If it is default that simple Switching power or convert resistance cannot so that electric current returns to
In range, can simultaneously Switching power and resistance.
Optionally, in order to not damage communicating circuit when ensureing switching, the present embodiment first disconnects and working as when carrying out power supply switching
The preceding power supply used, then the to be switched new power such as connect, i.e., the voltage that the communicating circuit disconnects the first voltage is first controlled,
The power supply of the second voltage is connected again.
Optionally, it controls in power supply or the switching communicating circuit that the communicating circuit switches in the communicating circuit
Resistance includes：When the loop current is less than the minimum value of the preset range, the communicating circuit is controlled by the power supply
The power supply of the 4th voltage is switched to by the power supply of tertiary voltage, wherein the tertiary voltage is less than the 4th voltage；Or
When the loop current is less than the minimum value of the preset range, the communicating circuit is controlled by the resistance by 3rd resistor value
Resistance be switched to the resistance of the 4th resistance value, wherein the 3rd resistor value is higher than the 4th resistance value.
It when loop current is less than the minimum value of preset range, needs to increase loop current, according to I=U/R, increases loop
Electric current can obtain relatively high loop current by boost source or the low-resistance mode of drop.Therefore, it can will communicate
Power supply in circuit is switched to the power supply of high voltage from the power supply of low voltage；Or by the resistance in communicating circuit from higher
Resistance value be switched to relatively low resistance value.If it is default that simple Switching power or convert resistance cannot so that electric current returns to
In range, can simultaneously Switching power and resistance.
Optionally, in order to not damage communicating circuit when ensureing switching, the present embodiment first disconnects and working as when carrying out power supply switching
The preceding power supply used, then the to be switched new power such as connect, i.e., the voltage that the communicating circuit disconnects the tertiary voltage is first controlled,
The power supply of the 4th voltage is connected again.
The present embodiment reduces communication line aging, device by making communicating circuit intermediate ring road electric current maintain between 2~3mA
The influence to communicating circuit such as part aging, city's electrical interference increases communication circuit of air conditioner reliability.
The embodiment of the present invention additionally provides a kind of storage medium, and the storage medium includes the program of storage, wherein described
Program executes the control method of above-mentioned communicating circuit.
Also a kind of processor of the embodiment of the present invention, the processor is for running program, wherein when described program is run
Execute the control method of above-mentioned communicating circuit.
In the above embodiment of the present invention, all emphasizes particularly on different fields to the description of each embodiment, do not have in some embodiment
The part of detailed description may refer to the associated description of other embodiment.
In several embodiments provided herein, it should be understood that disclosed technology contents can pass through others
Mode is realized.Wherein, the apparatus embodiments described above are merely exemplary, for example, the unit division, Ke Yiwei
A kind of division of logic function, formula that in actual implementation, there may be another division manner, such as multiple units or component can combine or
Person is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Between coupling, direct-coupling or communication connection can be INDIRECT COUPLING or communication link by some interfaces, unit or module
It connects, can be electrical or other forms.
The unit illustrated as separating component may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, you can be located at a place, or may be distributed over multiple
On unit.Some or all of unit therein can be selected according to the actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also
It is that each unit physically exists alone, it can also be during two or more units be integrated in one unit.Above-mentioned integrated list
The form that hardware had both may be used in member is realized, can also be realized in the form of SFU software functional unit.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can be stored in a computer read/write memory medium.Based on this understanding, technical scheme of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can be personal computer, server or network equipment etc.) execute each embodiment the method for the present invention whole or
Part steps.And storage medium above-mentioned includes：USB flash disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic disc or CD etc. are various can to store program code
Medium.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (12)
1. a kind of communicating circuit of air conditioner, which is characterized in that including：
Switchable power supply circuit is arranged in the outdoor unit of the air conditioner, connects the FireWire port port of the outdoor unit and described
The zero curve port of outdoor unit, the power supply for providing at least two different voltages, wherein the FireWire port port of the outdoor unit connects
The FireWire port port of the indoor unit of the air conditioner；
Changeable resistance circuit, is arranged in the outdoor unit, connects the PORT COM of the outdoor unit, for providing at least two
The resistance of a different resistance values, wherein the PORT COM of the outdoor unit connects the PORT COM of the indoor unit；
Current detecting instrument is connected with the changeable resistance circuit, the electric current for detecting the communicating circuit；
Outer machine communicating circuit connects the switchable power supply circuit and the changeable resistance circuit,
Interior machine communicating circuit connects the PORT COM of the indoor unit, the FireWire port port of the indoor unit and the indoor unit
Zero curve port.
2. communicating circuit according to claim 1, which is characterized in that the changeable resistance circuit includes at least：
First resistor branch, the first resistor branch include concatenated first resistor and first switch, and the first switch is used
The communicating circuit is accessed in the control first resistor or is disconnected from the communicating circuit；
Second resistance branch, the second resistance branch and the first resistor branch circuit parallel connection, the second resistance branch include
Concatenated second resistance and second switch, the second switch for control the second resistance access the communicating circuit or
It is disconnected from the communicating circuit, the resistance value of the first resistor is different with the resistance value of the second resistance.
3. communicating circuit according to claim 1, which is characterized in that the switchable power supply circuit includes at least：
First power branch, first power branch include third switch and the first power supply, and the third switch is for controlling
Communicating circuit described in first plant-grid connection is disconnected from the communicating circuit；
Second source branch, the second source branch include the 4th switch and second source, wherein the electricity of first power supply
Pressure value is different with the voltage value of the second source, and the 4th switch accesses the communication electricity for controlling the second source
Road is disconnected from the communicating circuit.
4. communicating circuit according to any one of claim 1 to 3, which is characterized in that by default, it is described at least
One of power supply of two different voltages accesses the communicating circuit, the resistance of at least two different resistance values its
One of the access communicating circuit.
5. communicating circuit according to claim 1, which is characterized in that detect the communication electricity in the current detecting instrument
For the electric current on road not in the case of preset range, the switchable power supply circuit carries out power supply switching or the changeable resistance
Circuit carries out resistance switching.
6. a kind of control method of communicating circuit, which is characterized in that including：
Detect the loop current of the communicating circuit communicated between the indoor unit and outdoor unit of air-conditioning；
Judge the loop current whether within a preset range；
When detecting the loop current not in the preset range, controls the communicating circuit and switch the communicating circuit
In power supply or the switching communicating circuit in resistance be in the preset range to adjust the loop current.
7. according to the method described in claim 6, switching in the communicating circuit it is characterized in that, controlling the communicating circuit
Resistance includes in power supply or the switching communicating circuit：
When the loop current is more than the maximum value of the preset range, the communicating circuit is controlled by the power supply by first
The power supply of voltage is switched to the power supply of second voltage, wherein the first voltage is higher than the second voltage；Or
When the loop current is more than the maximum value of the preset range, the communicating circuit is controlled by the resistance by first
The resistance of resistance value is switched to the resistance of the second resistance value, wherein first resistance value is less than the second resistance.
8. the method according to the description of claim 7 is characterized in that controlling the communicating circuit by the power supply by first voltage
Power supply be switched to the power supply of second voltage and include：
It first controls the communicating circuit and disconnects the voltage of the first voltage, then connect the power supply of the second voltage.
9. according to the method described in claim 6, switching in the communicating circuit it is characterized in that, controlling the communicating circuit
Resistance includes in power supply or the switching communicating circuit：
When the loop current is less than the minimum value of the preset range, the communicating circuit is controlled by the power supply by third
The power supply of voltage is switched to the power supply of the 4th voltage, wherein the tertiary voltage is less than the 4th voltage；Or
When the loop current is less than the minimum value of the preset range, the communicating circuit is controlled by the resistance by third
The resistance of resistance value is switched to the resistance of the 4th resistance value, wherein the 3rd resistor value is higher than the 4th resistance value.
10. according to the method described in claim 9, it is characterized in that, controlling the communicating circuit by the power supply by third electricity
The power supply that the power supply of pressure is switched to the 4th voltage includes：
It first controls the communicating circuit and disconnects the voltage of the tertiary voltage, then connect the power supply of the 4th voltage.
11. a kind of storage medium, which is characterized in that the storage medium includes the program of storage, wherein described program right of execution
Profit requires the control method of the communicating circuit described in any one of 6 to 10.
12. a kind of processor, which is characterized in that the processor is for running program, wherein right of execution when described program is run
Profit requires the control method of the communicating circuit described in any one of 6 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810001920.3A CN108278731A (en) | 2018-01-02 | 2018-01-02 | Communication circuit, control method thereof, storage medium, and processor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810001920.3A CN108278731A (en) | 2018-01-02 | 2018-01-02 | Communication circuit, control method thereof, storage medium, and processor |
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| CN108278731A true CN108278731A (en) | 2018-07-13 |
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ID=62803066
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810001920.3A Pending CN108278731A (en) | 2018-01-02 | 2018-01-02 | Communication circuit, control method thereof, storage medium, and processor |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108931034A (en) * | 2018-08-03 | 2018-12-04 | 珠海格力电器股份有限公司 | Optical coupling communication circuit, communication chip and air conditioner |
| CN109539513A (en) * | 2018-11-23 | 2019-03-29 | 珠海格力电器股份有限公司 | Communication circuit of indoor unit and outdoor unit of air conditioner, control method of communication circuit and air conditioner |
| CN111023509A (en) * | 2019-12-24 | 2020-04-17 | Tcl空调器(中山)有限公司 | An air conditioner, an air conditioner internal and external unit communication system and its control method |
| CN112140837A (en) * | 2020-10-27 | 2020-12-29 | 珠海格力电器股份有限公司 | Data transmission method and communication equipment of vehicle air conditioning system |
| CN112283875A (en) * | 2020-10-26 | 2021-01-29 | Tcl空调器(中山)有限公司 | Air conditioner, communication circuit of air conditioner internal and external machines and fault detection method of communication circuit |
| CN114704917A (en) * | 2022-04-25 | 2022-07-05 | 珠海格力电器股份有限公司 | Zero-live line communication circuit, communication system and air conditioning system |
| CN114826314A (en) * | 2022-03-11 | 2022-07-29 | 珠海格力电器股份有限公司 | Communication circuit, control method and device thereof and electronic equipment |
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| CN114704917B (en) * | 2022-04-25 | 2025-06-27 | 珠海格力电器股份有限公司 | A zero-live communication circuit, communication system and air conditioning system |
| CN115773564A (en) * | 2022-06-23 | 2023-03-10 | 珠海格力电器股份有限公司 | Air conditioner control method, system, circuit, equipment and storage medium |
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