CN206073362U - A kind of communicator of air conditioner indoor and outdoor machine - Google Patents
A kind of communicator of air conditioner indoor and outdoor machine Download PDFInfo
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- CN206073362U CN206073362U CN201620700641.2U CN201620700641U CN206073362U CN 206073362 U CN206073362 U CN 206073362U CN 201620700641 U CN201620700641 U CN 201620700641U CN 206073362 U CN206073362 U CN 206073362U
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- 238000004891 communication Methods 0.000 claims abstract description 106
- 230000008878 coupling Effects 0.000 claims abstract description 52
- 238000010168 coupling process Methods 0.000 claims abstract description 52
- 238000005859 coupling reaction Methods 0.000 claims abstract description 52
- 230000001012 protector Effects 0.000 claims description 13
- 230000001360 synchronised effect Effects 0.000 claims description 4
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- 230000005540 biological transmission Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
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- 238000004378 air conditioning Methods 0.000 description 1
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Abstract
The utility model is related to a kind of communicator of air conditioner indoor and outdoor machine, including：At least one indoor set and an off-premises station, and power line, wherein, each indoor set at least one indoor set includes：Indoor set MCU, the first power carrier communication device and the first signal coupling circuit being sequentially connected；Off-premises station includes：Off-premises station MCU, the second power carrier communication device and the secondary signal termination power being sequentially connected；First termination power is connected by power line with the second termination power.A kind of communicator of air conditioner indoor and outdoor machine that the utility model is provided, the power carrier communication device included by indoor and outdoor machine and signal coupling circuit, so that the signal of communication of indoor and outdoor machine is transmitted by power line, can quickly, low cost, easily realize the communication of indoor and outdoor machine, simultaneously, the connecting line of indoor and outdoor machine can also be reduced so that the connection of indoor and outdoor machine is simpler.
Description
Technical Field
The utility model relates to an air conditioning equipment field especially relates to a communication device of indoor set and outdoor set of air-conditioner.
Background
At present, there are two main communication methods between the indoor unit and the outdoor unit of an air conditioner: one is current loop communication, and by adopting the communication mode, the connecting line of the indoor unit and the outdoor unit comprises a power supply live wire, a power supply zero line and a signal wire which are required to be correspondingly connected; the other is RS485 communication, in the communication mode, the connection of the indoor unit and the outdoor unit is similar to current loop communication, and not only the power line pair is correspondingly connected, but also the 485 communication line pair is correspondingly connected. The two communication modes lead to the problem of inconvenient connection due to the complex connection structure of the indoor unit and the outdoor unit of the air conditioner.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to the not enough of prior art, provide a communication device of indoor outdoor set of air-conditioner.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a communication device of indoor and outdoor units of an air conditioner includes: at least one indoor unit and an outdoor unit, and power line, wherein, each indoor unit in at least one indoor unit includes: the indoor unit MCU, the first power carrier communication device and the first signal coupling circuit are connected in sequence; the outdoor unit includes: the outdoor unit MCU, the second power carrier communication device and the second signal coupling circuit are connected in sequence; the first signal coupling circuit and the second signal coupling circuit are connected through the power line.
The utility model has the advantages that: through the power line carrier communication device and the signal coupling circuit that the indoor machine includes for the communication signal of indoor machine passes through the power line and transmits, can be fast, low-cost, convenient realization communication of indoor machine, simultaneously, can also reduce the connecting wire of indoor machine, makes the connection of indoor machine simpler.
On the basis of the technical scheme, the utility model discloses can also do following improvement.
Further, the first signal coupling circuit includes: the power line protection device comprises a first signal coupler, a first protector and a first high-pass filter which are sequentially connected, wherein the first signal coupler is connected with the first power carrier communication device, and the first high-pass filter is connected with the power line.
The beneficial effect of adopting the further scheme is that: the first signal coupler isolates the high voltage of the power line from the low voltage of the first power carrier communication device interface. The first protector can eliminate interference on a power line, improve the anti-interference capability of the communication device, and simultaneously avoid the problem that a circuit is broken down by high voltage when spikes or surges which happen to appear on the power line are coupled to the power carrier communication device. The first high-pass filter can filter out low-frequency signals in high voltage, and collect and transmit useful signals.
Further, the first power carrier communication device includes: the first receiver, the first controller and the first transmitter are connected in sequence, wherein the first receiver is connected with a signal output end of the indoor unit MCU, and the first transmitter is connected with the first signal coupler.
Further, the first power carrier communication device further includes: the second receiver, the first controller and the second transmitter are sequentially connected, wherein the second receiver is connected with the first signal coupler, and the second transmitter is connected with a signal input end of the indoor unit MCU.
Further, the second signal coupling circuit includes: the second signal coupler, the second protector and the second high-pass filter are connected in sequence, wherein the second signal coupler is connected with the second power carrier communication device, and the second high-pass filter is connected with the power line.
The beneficial effect of adopting the further scheme is that: the second signal coupler isolates the high voltage of the power line from the low voltage of the second power carrier communication device interface. The second protector can eliminate interference on the power line, improves the anti-interference capability of the communication device, and can avoid the problem that the circuit is broken down by high voltage when spikes or surges which happen to appear on the power line are coupled to the power carrier communication device. The second high-pass filter can filter out low-frequency signals in high voltage, and collect and transmit useful signals.
Further, the second power carrier communication device includes: and the third receiver, the second controller and the third transmitter are sequentially connected, wherein the third receiver is connected with the second signal coupler, and the third transmitter is connected with a signal input end of the outdoor unit MCU.
Further, the second power carrier communication device further includes: the fourth receiver, the second controller and the fourth transmitter are connected in sequence, wherein the fourth receiver is connected with a signal output end of the outdoor unit MCU, and the fourth transmitter is connected with the second signal coupler.
Further, the first signal coupler or the second signal coupler employs a signal coupling transformer.
Further, the first controller or the second controller employs a half-duplex synchronous modem.
Further, each indoor unit of the at least one indoor unit further includes: the outdoor unit further includes: the first power supply module is connected between the indoor unit MCU and the power line; the second power supply module is connected between the outdoor unit MCU and the power line.
Advantages of additional aspects 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
Fig. 1 is a schematic block diagram of a communication device of an indoor/outdoor unit of an air conditioner according to the present invention;
fig. 2 is a schematic block diagram of a first signal coupling circuit of a communication device of an indoor and outdoor unit of an air conditioner shown in fig. 1;
fig. 3 is a schematic block diagram of a first power carrier communication device of the indoor and outdoor units of the air conditioner shown in fig. 1;
fig. 4 is another schematic block diagram of a first power carrier communication device of the indoor and outdoor units of the air conditioner shown in fig. 1;
fig. 5 is a schematic block diagram of a second signal coupling circuit of the communication device of the indoor and outdoor units of the air conditioner shown in fig. 1;
fig. 6 is a schematic block diagram of a second power carrier communication device of the indoor and outdoor units of the air conditioner shown in fig. 1;
fig. 7 is another schematic block diagram of a second power carrier communication device of the indoor and outdoor units of the air conditioner shown in fig. 1;
fig. 8 is another schematic block diagram of a communication device for indoor and outdoor units of an air conditioner according to the present invention.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
Power Line Communication (PLC) is a technology for transmitting data and exchanging information by applying a high-frequency signal carrying information to a current and using an existing Power distribution network as a transmission medium. The existing power supply line is used as a carrier for information transmission, and a new communication network is avoided. The power line has the advantages of low cost, high speed, convenient connection and the like as a data transmission channel, and has been widely applied. Power carrier communication is an increasingly well-recognized high-speed digital communication technology that is readily available in the future.
The indoor unit and the outdoor unit of the air conditioner adopt power carrier communication, so that the connection structure of the indoor unit and the outdoor unit is simple, the connection is convenient, a butt joint wire is reduced, and the cost can be reduced.
As shown in fig. 1, the communication device of an indoor and outdoor unit of an air conditioner includes: a plurality of indoor units 10 and an outdoor unit 200, and power lines.
Each indoor unit 100 of the plurality of indoor units 10 includes: the indoor unit MCU110, the first power carrier communication device 120 and the first signal coupling circuit 130 are connected in sequence. The outdoor unit 200 includes: the outdoor unit MCU210, the second power carrier communication device 220, and the second signal coupling circuit 230 are connected in sequence. The first signal coupling circuit 130 and the second signal coupling circuit 230 included in each indoor unit 100 are connected through a power line. The power line comprises a power live wire L and a power zero wire N.
In addition, as shown in the communication device of fig. 1, each indoor unit 100 may further include a first power module 140, and the outdoor unit 200 may further include a second power module 240. The first power module 140 is connected between the indoor unit MCU110 and the power line, and is configured to supply power to the indoor unit 100. The second power module 240 is connected between the outdoor unit MCU210 and the power line, and is used to supply power to the outdoor unit.
Specifically, in this embodiment, the first power carrier communication device 120 receives a data signal output by the signal output terminal of the indoor unit MCU110, modulates the data signal into a high-frequency carrier signal, and transmits the high-frequency carrier signal to the first signal coupling circuit 130. The first signal coupling circuit 130 couples the high frequency carrier signal into the power line. The second signal coupling circuit 230 collects the useful signal in the power line and transmits the collected useful signal to the second power carrier communication device 220. The second power carrier communication device 220 demodulates the useful signal collected by the second signal coupling circuit 230 to obtain a data signal, and transmits the data signal to the signal receiving terminal of the outdoor unit MCU210, thereby implementing communication between the indoor and outdoor units of the air conditioner.
Similarly, the second power carrier communication device 220 may modulate the received data signal output by the signal output terminal of the outdoor unit MCU210 into a high frequency carrier signal, and transmit the high frequency carrier signal to the second signal coupling circuit 230. The second signal coupling circuit 230 couples the high frequency carrier signal into the power line. The first signal coupling circuit 130 collects the useful signal in the power line and transmits the collected useful signal to the first power carrier communication device 120. The first power carrier communication device 120 demodulates the useful signal collected by the first signal coupling circuit 130 to obtain a data signal, and transmits the data signal to the signal receiving terminal of the indoor unit MCU110, thereby implementing communication between the indoor and outdoor units of the air conditioner.
The communication device of the indoor and outdoor units of the air conditioner provided by the embodiment is characterized in that the communication device comprises a power line communication device and a signal coupling circuit, and the power line communication device is connected with the signal coupling circuit.
Optionally, as an embodiment of the present invention, as shown in fig. 2, the first signal coupling circuit 130 may include: a first signal coupler 131, a first protector 132, and a first high-pass filter 133, which are connected in this order. The first signal coupler 131 is connected to the first power carrier communication device 120, and the first high-pass filter 133 is connected to the power line.
Specifically, in this embodiment, the first signal coupler 131 may be a signal coupling transformer, that is: and the high-frequency transformer T is used for isolating the high voltage of the power line from the low voltage of the interface of the first power carrier communication device 120. The first protector 132 includes a zener diode for eliminating interference on the power line, improving the anti-interference capability of the communication device, and simultaneously avoiding the problem that the circuit is broken down by high voltage when an accidental spike or surge on the power line is coupled to the power carrier communication device. The first high pass filter 133 may include a resistor R and a capacitor C for filtering low frequency signals in high voltage, collecting and transmitting useful signals.
Optionally, as another embodiment of the present invention, as shown in fig. 3, the first power carrier communication device 120 may include: a first receiver 121, a first controller 122 and a first transmitter 123 connected in sequence. The first receiver 121 is connected to a signal output end of the indoor unit MCU110, and the first transmitter 123 is connected to the first signal coupler 131.
Optionally, as another embodiment of the present invention, as shown in fig. 4, the first power carrier communication device 120 may further include: a second receiver 124, a first controller 122 and a second transmitter 125 connected in sequence. The second receiver 124 is connected to the first signal coupler 131, and the second transmitter 125 is connected to a signal input end of the indoor unit MCU 110.
Specifically, in this embodiment, the first controller 122 may employ a half-duplex synchronous modem, such as: and the ST7536 chip is used for modulating the data signals output by the signal output end of the indoor unit MCU110 into high-frequency carrier signals and demodulating the useful signals collected by the first signal coupling circuit into data signals.
Optionally, as another embodiment of the present invention, as shown in fig. 5, the second signal coupling circuit 230 may include: a second signal coupler 231, a second protector 232, and a second high-pass filter 233 connected in this order. The second signal coupler 231 is connected to the second power carrier communication device 220, and the second high-pass filter 233 is connected to the power line.
Specifically, in this embodiment, the electronic components and the functions that can be realized by the electronic components included in the second signal coupler 231, the second protector 232, and the second high-pass filter 233 are respectively similar to those of the first signal coupler 131, the first protector 132, and the first high-pass filter 133, and therefore, for brevity of description, detailed descriptions thereof are omitted here.
Optionally, as another embodiment of the present invention, as shown in fig. 6, the second power carrier communication device 220 may include: a third receiver 221, a second controller 222, and a third transmitter 223 connected in sequence. The third receiver 221 is connected to the second signal coupler 231, and the third transmitter 223 is connected to a signal input terminal of the outdoor unit MCU 210.
Specifically, in this embodiment, the electronic components included in the second controller 222 and the functions that can be implemented by the electronic components are similar to those of the first controller 122, and for brevity of description, no further description is provided here.
Optionally, as another embodiment of the present invention, as shown in fig. 7, the second power carrier communication device 220 may further include: a fourth receiver 224, a second controller 222 and a fourth transmitter 225 connected in sequence. The fourth receiver 224 is connected to the signal output terminal of the outdoor unit MCU210, and the fourth transmitter 225 is connected to the second signal coupler 231.
The communication device of the indoor and outdoor unit of the air conditioner provided by the present invention is described in detail with reference to fig. 1 to 7, and the following description takes a "one-by-one" air conditioner as an example, and is described in detail with reference to fig. 8.
As shown in fig. 8, the communication device of the indoor and outdoor unit of the air conditioner includes: indoor unit 100, outdoor unit 200, and power lines. Wherein,
the indoor unit 100 includes: the indoor unit MCU110, the first power carrier communication device 120, the first signal coupling circuit 130 and the first power module 140 are connected in sequence. The outdoor unit 200 includes: the outdoor unit MCU210, the second power carrier communication device 220, the second signal coupling circuit 230, and the second power module 240 are connected in sequence.
The first power module 140 is connected between the indoor unit MCU110 and the power line. The second power module 240 is connected between the outdoor unit MCU210 and the power line. The first signal coupling circuit 130 and the second signal coupling circuit 230 are connected by a power line.
Specifically, in this embodiment, the first signal coupling circuit 130 may include: a first signal coupler 131, a first protector 132, and a first high-pass filter 133, which are connected in this order. The first power carrier communication device 120 may include: a first receiver 121, a first controller 122 and a first transmitter 123, and a second receiver 124 and a second transmitter 125.
Wherein, the first receiver 121, the first transmitter 123, the second receiver 124 and the second transmitter 125 are respectively connected with the first controller 122. The first receiver 121 is connected to a signal output terminal of the indoor unit MCU110, the first transmitter 123 is connected to the first signal coupler 131, the second receiver 124 is connected to the first signal coupler 131, the second transmitter 125 is connected to a signal input terminal of the indoor unit MCU110, and the first high pass filter 133 is connected to a power line.
The second signal coupling circuit 230 may include: a second signal coupler 231, a second protector 232, and a second high-pass filter 233 connected in this order. The second power carrier communication device 220 may include: a third receiver 221, a second controller 222, and a third transmitter 223, and a fourth receiver 224 and a fourth transmitter 225.
Wherein the third receiver 221, the third transmitter 223, the fourth receiver 224 and the fourth transmitter 225 are respectively connected with the second controller 222. The third receiver 221 is connected to the second signal coupler 231, the third transmitter 223 is connected to a signal input terminal of the outdoor unit MCU210, the fourth receiver 224 is connected to a signal output terminal of the outdoor unit MCU210, the fourth transmitter 225 is connected to the second signal coupler 231, and the second high-pass filter 233 is connected to the power line.
In this embodiment, the first receiver 121 included in the first power carrier communication device 120 receives a data signal output by the signal output terminal of the indoor unit MCU110, the first controller 122 modulates the data signal into a high frequency carrier signal, and the first transmitter 123 transmits the high frequency carrier signal to the first signal coupler 131 included in the first signal coupling circuit 130. The first signal coupler 131 couples the high frequency carrier signal, filters a low frequency signal of high voltage by the first high pass filter 133, collects a desired signal, and transmits the collected desired signal to the power line.
The second high pass filter 233 included in the second signal coupling circuit 230 collects the useful signal in the power line and transmits the collected useful signal to the third receiver 221 included in the second power carrier communication device 220 through the second signal coupler 231. The second controller 222 demodulates the useful signal collected by the second signal coupling circuit 230 to obtain a data signal, and the third transmitter 223 transmits the data signal to a signal receiving terminal of the outdoor unit MCU210, thereby implementing communication between the indoor and outdoor units of the air conditioner.
Similarly, the fourth receiver 224 included in the second power carrier communication device 220 receives the data signal output by the signal output terminal of the outdoor unit MCU210, the second controller 222 modulates the data signal into a high-frequency carrier signal, and the fourth transmitter 225 transmits the high-frequency carrier signal to the second signal coupler 231 included in the second signal coupling circuit 230. The second signal coupler 231 couples the high frequency carrier signal and filters a low frequency signal of high voltage through the second high pass filter 233, collects a useful signal, and transmits the collected useful signal to the power line.
The first high pass filter 133 included in the first signal coupling circuit 130 collects the useful signal in the power line and transmits the collected useful signal to the second receiver 124 included in the first power carrier communication device 120 through the first signal coupler 131. The first controller 122 demodulates the useful signal collected by the first signal coupling circuit 130 to obtain a data signal, and the second transmitter 124 transmits the data signal to the signal receiving end of the indoor unit MCU110, thereby implementing communication between the indoor and outdoor units of the air conditioner.
The communication device of the indoor and outdoor units of the air conditioner provided by the embodiment is characterized in that the communication device comprises a power line communication device and a signal coupling circuit, and the power line communication device is connected with the signal coupling circuit.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. A communication device for indoor and outdoor units of an air conditioner, comprising: at least one indoor unit (10) and one outdoor unit (200), and power lines, wherein,
each indoor unit (100) of said at least one indoor unit (10) comprises: the system comprises an indoor unit MCU (110), a first power carrier communication device (120) and a first signal coupling circuit (130) which are connected in sequence;
the outdoor unit (200) comprises: the outdoor unit MCU (210), the second power carrier communication device (220) and the second signal coupling circuit (230) are connected in sequence;
the first signal coupling circuit (130) and the second signal coupling circuit (230) are connected by the power line.
2. The communication apparatus according to claim 1, wherein the first signal coupling circuit (130) comprises: a first signal coupler (131), a first protector (132), and a first high-pass filter (133) connected in this order, wherein,
the first signal coupler (131) is connected to the first power carrier communication device (120), and the first high-pass filter (133) is connected to the power line.
3. The communication device according to claim 2, wherein the first power carrier communication device (120) comprises: a first receiver (121), a first controller (122), and a first transmitter (123) connected in this order, wherein,
the first receiver (121) is connected with a signal output end of the indoor unit MCU (110), and the first transmitter (123) is connected with the first signal coupler (131).
4. The communication device of claim 3, wherein the first power carrier communication device (120) further comprises: a second receiver (124), the first controller (122), and a second transmitter (125) connected in series, wherein,
the second receiver (124) is connected with the first signal coupler (131), and the second transmitter (125) is connected with a signal input end of the indoor unit MCU (110).
5. The communication apparatus according to claim 1, wherein the second signal coupling circuit (230) comprises: a second signal coupler (231), a second protector (232), and a second high-pass filter (233) connected in this order,
the second signal coupler (231) is connected to the second power carrier communication device (220), and the second high-pass filter (233) is connected to the power line.
6. The communication device according to claim 5, wherein the second power carrier communication device (220) comprises: a third receiver (221), a second controller (222), and a third transmitter (223) connected in this order, wherein,
the third receiver (221) is connected to the second signal coupler (231), and the third transmitter (223) is connected to a signal input terminal of the outdoor unit MCU (210).
7. The communication device of claim 6, wherein the second power carrier communication device (220) further comprises: a fourth receiver (224), the second controller (222), and a fourth transmitter (225) connected in series, wherein,
the fourth receiver (224) is connected to a signal output terminal of the outdoor unit MCU (210), and the fourth transmitter (225) is connected to the second signal coupler (231).
8. The communication apparatus according to claim 3, wherein the first signal coupler (131) employs a signal coupling transformer, and the first controller (122) employs a half-duplex synchronous modem.
9. The communication apparatus according to claim 6, wherein the second signal coupler (231) employs a signal coupling transformer, and the second controller (222) employs a half-duplex synchronous modem.
10. The communication device according to claim 1, characterized in that each indoor unit (100) of said at least one indoor unit (10) further comprises: a first power module (140), the outdoor unit (200) further comprising: a second power module (240), wherein,
the first power supply module (140) is connected between the indoor unit MCU (110) and the power line;
the second power supply module (240) is connected between the outdoor unit MCU (210) and the power line.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620700641.2U CN206073362U (en) | 2016-07-05 | 2016-07-05 | A kind of communicator of air conditioner indoor and outdoor machine |
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| CN201620700641.2U CN206073362U (en) | 2016-07-05 | 2016-07-05 | A kind of communicator of air conditioner indoor and outdoor machine |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278743A (en) * | 2017-12-21 | 2018-07-13 | 青岛海尔科技有限公司 | The communicating circuit and the means of communication of convertible frequency air-conditioner |
| CN108332357A (en) * | 2017-12-26 | 2018-07-27 | 青岛海尔空调器有限总公司 | Air conditioner communication device, the means of communication and air conditioner |
| CN108895617A (en) * | 2018-05-17 | 2018-11-27 | 广东美的制冷设备有限公司 | The communication means of air-conditioner system and air-conditioner system |
| CN112161386A (en) * | 2020-09-25 | 2021-01-01 | 海信（山东）空调有限公司 | Indoor unit, outdoor unit, temperature controller and method for controlling communication of air conditioner |
| WO2022227378A1 (en) * | 2021-04-30 | 2022-11-03 | 佛山市顺德区美的电子科技有限公司 | Air conditioner and data transmission method based on power line communication therefor, and storage medium |
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2016
- 2016-07-05 CN CN201620700641.2U patent/CN206073362U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108278743A (en) * | 2017-12-21 | 2018-07-13 | 青岛海尔科技有限公司 | The communicating circuit and the means of communication of convertible frequency air-conditioner |
| CN108278743B (en) * | 2017-12-21 | 2020-10-09 | 青岛海尔科技有限公司 | Communication circuit and communication method of variable frequency air conditioner |
| CN108332357A (en) * | 2017-12-26 | 2018-07-27 | 青岛海尔空调器有限总公司 | Air conditioner communication device, the means of communication and air conditioner |
| CN108895617A (en) * | 2018-05-17 | 2018-11-27 | 广东美的制冷设备有限公司 | The communication means of air-conditioner system and air-conditioner system |
| CN108895617B (en) * | 2018-05-17 | 2024-01-23 | 广东美的制冷设备有限公司 | Air conditioner system and communication method of air conditioner system |
| CN112161386A (en) * | 2020-09-25 | 2021-01-01 | 海信（山东）空调有限公司 | Indoor unit, outdoor unit, temperature controller and method for controlling communication of air conditioner |
| WO2022062336A1 (en) * | 2020-09-25 | 2022-03-31 | 海信（山东）空调有限公司 | Indoor unit, outdoor unit, thermostat and method for controlling communication of air conditioner |
| CN112161386B (en) * | 2020-09-25 | 2022-07-19 | 海信（山东）空调有限公司 | Indoor unit, outdoor unit, temperature controller and method for controlling communication of air conditioner |
| WO2022227378A1 (en) * | 2021-04-30 | 2022-11-03 | 佛山市顺德区美的电子科技有限公司 | Air conditioner and data transmission method based on power line communication therefor, and storage medium |
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