CN106452671B - Multi-connected indoor and outdoor unit communication method - Google Patents
Multi-connected indoor and outdoor unit communication method Download PDFInfo
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- CN106452671B CN106452671B CN201610856948.6A CN201610856948A CN106452671B CN 106452671 B CN106452671 B CN 106452671B CN 201610856948 A CN201610856948 A CN 201610856948A CN 106452671 B CN106452671 B CN 106452671B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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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
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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
- F24F11/56—Remote control
- F24F11/58—Remote control using Internet communication
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Abstract
The invention discloses a multi-connected indoor and outdoor unit communication method, which comprises the following steps: (1) the outdoor unit selects one communication speed value from the speed set as the initial speed of the outdoor unit, and sends the data frame of the outdoor unit to the indoor unit through a communication bus according to the initial speed of the outdoor unit; (2) the inner machine detects the communication speed of the outer machine and then sequentially sends respective data frames to the outer machine according to the detected speed; (3) the external unit calculates the bus communication accuracy within the set time length T0; (4) and the external unit adjusts the communication speed according to the bus communication accuracy. The communication method of the multi-connected internal and external machines can automatically select the communication speed of the internal and external machines according to the field communication quality condition, automatically adjust along with the change of the environment, does not need manual setting, can automatically select the most appropriate communication speed, shortens the communication time on the premise of ensuring the communication quality and improves the response speed of the system.
Description
Technical Field
The invention belongs to the technical field of air conditioner communication, and particularly relates to a multi-connected indoor and outdoor unit communication method.
Background
In a multi-split air conditioning system, an outdoor unit is generally connected to a plurality of indoor units, and each indoor unit includes parameters of various sensors such as temperature and humidity, and valves. In one round of communication, the outer machine is a main device, and after data or instructions of the outer machine are sent to the communication bus, each inner machine sends the data of the inner machine to the communication bus in turn to respond, and the outer machine detects and receives the data. Because the number of the inner machines is large, one-round communication time of the inner machine and the outer machine is long, and how to improve the communication speed of the inner machine and the outer machine becomes a research and development key point on the premise of ensuring the communication quality and not changing hardware.
At present, the common practice is that the communication speed is manually set between the internal machine and the external machine according to the actual field installation environment, then the internal machine and the external machine communicate according to the fixed speed, and if the internal machine and the external machine are found to be improper in operation, the communication speed is manually adjusted again. The method is complex in operation and high in cost, even if the debugging is qualified at the moment, when the system operation environment is changed or the system is interfered by some equipment, the originally adjusted communication speed is possibly inappropriate, and the communication quality is influenced.
Disclosure of Invention
The invention provides a multi-split internal and external machine communication method, which aims to solve the problems that the communication speed is inconvenient to adjust and the communication quality is easily influenced by interference in the conventional multi-split system.
In order to solve the technical problems, the invention adopts the following technical scheme:
a multi-online machine communication method comprises an external machine and a plurality of internal machines, wherein speed sets are respectively stored in the external machine and the internal machines, and the speed sets comprise a plurality of communication speed values; the communication method comprises the following steps:
(1) after the power is on, the outdoor unit selects one communication speed value from the speed set as the initial speed of the outdoor unit, and sends the data frame of the outdoor unit to the indoor unit through a communication bus according to the initial speed of the outdoor unit;
(2) the inner unit detects the communication speed of the outer unit and then sequentially sends respective data frames to the outer unit according to the detected speed;
(3) after all the internal machines finish sending, the external machine starts a new round of communication until the communication time length reaches the set time length T0, and the external machine calculates the bus communication accuracy within the set time length T0;
(4) and the outdoor unit compares the bus communication accuracy with a communication quality threshold, wherein the communication quality threshold comprises a lower limit value M1 and an upper limit value M2, if the bus communication accuracy is greater than the upper limit value M2, the outdoor unit improves the communication speed on the basis of the current communication speed to perform the next round of communication, the step (2) is returned, and if the bus communication accuracy is less than the lower limit value M1, the outdoor unit reduces the communication speed on the basis of the current communication speed to perform the next round of communication, and the step (2) is returned.
Further, in step (3), the method for calculating the bus communication accuracy rate includes: every time the outer machine sends a frame of data frame, the inner machine can respond to complete a round of communication, the number of the inner machines capable of correctly responding in the round of communication is counted, if all the inner machines correctly respond and only respond once, the number of times M of correct responding is increased by 1, N rounds of communication and the number of times M of correct responding are totally completed in a set time length T0, and the bus communication accuracy is calculated:
bus communication accuracy = M ÷ N.
Further, the method for detecting the communication speed of the external unit by the internal unit in the step (2) comprises the following steps:
the method comprises the steps that an inner unit selects a communication speed value from a speed set as an inner unit initial speed, speed switching time is set, a received outer unit data frame is detected according to a communication byte format according to the inner unit initial speed, whether the detected outer unit data frame is correct or not is judged, if the detected outer unit data frame is correct, the inner unit initial speed is judged to be the communication speed of an outer unit, and the inner unit initial speed is kept to be communicated with the outer unit; and if the current communication speed is not correct, switching another communication speed with the concentrated speed after the speed switching time is reached, detecting again until the data frame of the outdoor unit can be correctly detected according to the current communication speed, judging that the current communication speed is the communication speed of the outdoor unit, and keeping the current communication speed to be communicated with the outdoor unit.
Further, when the speed set has odd communication speed values, the communication speed values are arranged in an ascending order or a descending order, the communication speed value positioned in the middle is selected as the initial speed of the external unit, when the speed set has even communication speed values, the communication speed values are arranged in an ascending order or a descending order, and one of the two communication speed values positioned in the middle is selected as the initial speed of the external unit.
Further, the initial speed of the internal machine is consistent with the initial speed of the external machine.
Further, the initial speed of the external machine is written into the EEPROM of the external machine, and the initial speed of the internal machine is written into the EEPROM of the internal machine.
Further, the step (4) is followed by a step of updating the initial speed of the external unit and the initial speed of the internal unit, if the bus communication accuracy is between the lower limit value M1 and the upper limit value M2, the external unit keeps the current communication speed to perform the next round of communication, and the current communication speeds are the initial speed of the external unit and the initial speed of the internal unit respectively and are correspondingly written into the EEPROM of the external unit and the EEPROM of the internal unit.
Compared with the prior art, the invention has the advantages and positive effects that: the communication method of the multi-connected internal and external machines can automatically select the communication speed of the internal and external machines according to the field communication quality condition, automatically adjust along with the change of the environment, does not need manual setting, can automatically select the most appropriate communication speed, shortens the communication time on the premise of ensuring the communication quality and improves the response speed of the system.
Other features and advantages of the present invention will become more apparent from the detailed description of the embodiments of the present invention when taken in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart of an embodiment of a multi-connected indoor and outdoor unit communication method according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment provides a multi-split air conditioner communication method, which includes an outdoor unit and a plurality of indoor units, wherein the outdoor unit and the indoor units communicate with each other through a bus, speed sets are respectively stored in the outdoor unit and the indoor units, and each speed set includes a plurality of communication speed values; as shown in fig. 1, the communication method includes the steps of:
s1, after being electrified, the outdoor unit selects one communication speed value from the speed set as the initial speed of the outdoor unit, and sends the data frame of the outdoor unit to the indoor unit through the communication bus according to the initial speed of the outdoor unit;
s2, the internal unit detects the communication speed of the external unit and then sequentially sends respective data frames to the external unit according to the detected speed;
s3, after all the internal machines finish sending, the external machine starts a new round of communication until the communication time length reaches the set time length T0, and the external machine calculates the bus communication accuracy within the set time length T0;
and S4, the outdoor unit compares the bus communication accuracy with a communication quality threshold, wherein the communication quality threshold comprises a lower limit value M1 and an upper limit value M2, if the bus communication accuracy is greater than the upper limit value M2, the outdoor unit improves the communication speed on the basis of the current communication speed to perform the next round of communication, the step S2 is returned, if the bus communication accuracy is less than the lower limit value M1, the outdoor unit reduces the communication speed on the basis of the current communication speed to perform the next round of communication, and the step S2 is returned.
The multi-connected internal and external unit communication is generally divided into three types, namely wired, wireless and wired and wireless mixed connection, the common communication speeds are 2400bps, 4800bps, 9600bps and 19200bps, the communication speed values are stored in a speed set, the number value in the speed set can be increased or deleted according to the actual situation, the communication speeds on buses of the internal unit and the external unit are determined by the external unit, after the external unit is powered on, one of the speeds is selected by the external unit, data frames of the external unit are sent to the internal unit through the communication bus according to the speed, the communication speed of the external unit is detected by the internal unit through a certain algorithm, then the data frames of the internal unit are sent to the external unit in sequence according to the detected speed, the communication quality of communication at the communication speed is detected, and adjustment is carried. The method can automatically select the communication speed of the internal and external machines according to the field communication quality condition, automatically adjust along with the change of the environment, can automatically select the most appropriate communication speed without manual setting, and can improve the communication speed on the premise of ensuring the communication quality because the higher the speed is, the higher the interference noise is, and the corresponding communication quality is reduced.
As a preferred embodiment, in step S3, the method for calculating the bus communication accuracy includes: every time the outer machine sends a frame of data frame, the inner machine can respond to complete a round of communication, the number of the inner machines capable of correctly responding in the round of communication is counted, if all the inner machines correctly respond and only respond once, the number of times M of correct responding is increased by 1, N rounds of communication and the number of times M of correct responding are totally completed in a set time length T0, and the bus communication accuracy is calculated:
bus communication accuracy = M ÷ N.
If the set time duration T0 is 30 minutes, the external unit sends 1500 times of data in this time period, and the number of correct responses of the internal unit is 1200 times, the bus communication accuracy =1200 ÷ 1500=80%, and the bus communication accuracy reflects the bus communication quality.
According to the method, the correct response of the internal machines in one round of communication is judged only when all the internal machines correctly respond and only one response is carried out in each round of communication, and the correct response rate, namely the bus communication correct rate, is calculated to serve as a judging method for judging the communication quality, so that the method can maximally improve the communication speed on the premise of ensuring the communication quality, and finally balance between the communication speed and the communication quality is realized.
Because the outer unit can select multiple communication speeds, and the communication speed changes at any time with the change of the communication quality, in each round of communication, the communication speed of the outer unit is unknown to the inner unit, and in order to maintain the consistency of the communication between the inner unit and the outer unit, the inner unit needs to detect the communication speed of the outer unit and respond at the same speed, so that the calculation amount will be increased for the inner unit, which has certain difficulty, and in order to not cause the step to delay the response speed of the inner unit, the method for detecting the communication speed of the outer unit by the inner unit in step S2 is preferably as follows:
the method comprises the steps that an inner unit selects a communication speed value from a speed set as an inner unit initial speed, speed switching time is set, a received outer unit data frame is detected according to a communication byte format according to the inner unit initial speed, whether the detected outer unit data frame is correct or not is judged, if the detected outer unit data frame is correct, the inner unit initial speed is judged to be the communication speed of an outer unit, and the inner unit initial speed is kept to be communicated with the outer unit; and if the current communication speed is not correct, switching another communication speed with the concentrated speed after the speed switching time is reached, detecting again until the data frame of the outdoor unit can be correctly detected according to the current communication speed, judging that the current communication speed is the communication speed of the outdoor unit, and keeping the current communication speed to be communicated with the outdoor unit. And if the internal machine detects that the current communication speed is incorrect, switching the next communication speed according to the ascending or descending sequence.
Although the communication speed of the outer unit can be changed, the communication format of the inner unit and the outer unit is fixed, and each communication byte has a start bit, a data bit, a parity bit and a stop bit. The internal unit firstly sets an initial communication speed and speed switching time, such as 9600bps, and the speed automatic switching time is 2 seconds. In the 1 st 2 seconds, according to the initial 9600bps communication speed, whether the communication data of the external unit is correct can be detected according to the communication byte format. If the communication speed is correct, the communication speed is kept to be communicated with the outdoor unit; if not, the next communication speed is switched to 19200bps after 2 seconds, whether the next communication speed is correct is detected again, and if not, the next communication speed is switched to 2400bps after 2 seconds. And sequentially and repeatedly detecting and judging until the correct communication with the external unit can be maintained. If the normal communication speed is stored in the EEPROM of the internal machine, the internal machine is powered on again after power off, and then the internal machine communicates with the external machine according to the communication speed in the EEPROM of the internal machine.
When the system initially sets the initial speed of the outdoor unit, when the speed set has odd communication speed values, the communication speed values are arranged in an ascending order or a descending order, the communication speed value in the middle is selected as the initial speed of the outdoor unit, when the speed set has even communication speed values, the communication speed values are arranged in an ascending order or a descending order, and one of the two communication speed values in the middle is selected as the initial speed of the outdoor unit.
Generally, the communication speed of the external unit is determined according to the current working condition environment and on the premise of ensuring the optimal communication quality, when the external unit is restarted, the communication speed is considered to be similar to the current working condition environment and the previous working condition, and the optimal communication speed is possibly similar, the step S4 is followed by a step of updating the initial speed of the external unit and the initial speed of the internal unit, if the bus communication accuracy is between the lower limit value M1 and the upper limit value M2, the external unit keeps the current communication speed to perform next round of communication, and the current communication speeds are respectively the initial speed of the external unit and the initial speed of the internal unit and are correspondingly written into the EEPROM of the external unit and the EEPROM of the internal unit. When the mobile terminal is powered on again, the external unit communicates with the last optimal communication speed as the initial speed, and therefore the time for detecting the optimal communication speed can be reduced.
In order to reduce the communication speed of the external unit detected by the internal unit for the first time after the power is turned on, the initial speed of the internal unit is preferably consistent with the initial speed of the external unit.
And writing the initial speed of the external machine into the EEPROM of the external machine, and writing the initial speed of the internal machine into the EEPROM of the internal machine. After each time of electrification, the external machine and the internal machine respectively call the initial speed stored in the EEPROM of the external machine and the internal machine to carry out communication.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.
Claims (6)
1. The multi-split air conditioner internal and external unit communication method is characterized in that the multi-split air conditioner comprises an external unit and a plurality of internal units, wherein speed sets are respectively stored in the external unit and the internal units, and each speed set comprises a plurality of communication speed values; the communication method comprises the following steps:
(1) after the power is on, the outdoor unit selects one communication speed value from the speed set as the initial speed of the outdoor unit, and sends the data frame of the outdoor unit to the indoor unit through a communication bus according to the initial speed of the outdoor unit;
(2) the inner unit detects the communication speed of the outer unit and then sequentially sends respective data frames to the outer unit according to the detected speed;
(3) after all the internal machines finish sending, the external machine starts a new round of communication until the communication time length reaches the set time length T0, and the external machine calculates the bus communication accuracy within the set time length T0;
(4) comparing the bus communication accuracy with a communication quality threshold value, wherein the communication quality threshold value comprises a lower limit value M1 and an upper limit value M2, if the bus communication accuracy is larger than the upper limit value M2, the communication speed of the outdoor unit is increased on the basis of the current communication speed to carry out the next round of communication, returning to the step (2), if the bus communication accuracy is smaller than the lower limit value M1, the communication speed of the outdoor unit is reduced on the basis of the current communication speed to carry out the next round of communication, and returning to the step (2);
in the step (3), the method for calculating the bus communication accuracy rate includes: every time the outer machine sends a frame of data frame, the inner machine can respond to complete a round of communication, the number of the inner machines capable of correctly responding in the round of communication is counted, if all the inner machines correctly respond and only respond once, the number of times M of correct responding is increased by 1, N rounds of communication and the number of times M of correct responding are totally completed in a set time length T0, and the bus communication accuracy is calculated:
bus communication accuracy = M ÷ N.
2. The multi-connected indoor and outdoor unit communication method according to claim 1, wherein the method for detecting the communication speed of the outdoor unit by the indoor unit in the step (2) comprises the following steps:
the method comprises the steps that an inner unit selects a communication speed value from a speed set as an inner unit initial speed, speed switching time is set, a received outer unit data frame is detected according to a communication byte format according to the inner unit initial speed, whether the detected outer unit data frame is correct or not is judged, if the detected outer unit data frame is correct, the inner unit initial speed is judged to be the communication speed of an outer unit, and the inner unit initial speed is kept to be communicated with the outer unit; and if the current communication speed is not correct, switching another communication speed with the concentrated speed after the speed switching time is reached, detecting again until the data frame of the outdoor unit can be correctly detected according to the current communication speed, judging that the current communication speed is the communication speed of the outdoor unit, and keeping the current communication speed to be communicated with the outdoor unit.
3. The multi-split indoor and outdoor unit communication method as claimed in claim 2, wherein when the speed set has an odd number of communication speed values, the communication speed values are arranged in an ascending order or a descending order, and a communication speed value located in the middle is selected as the outdoor unit initial speed, and when the speed set has an even number of communication speed values, the communication speed values are arranged in an ascending order or a descending order, and one of the two communication speed values located in the middle is selected as the outdoor unit initial speed.
4. A multi-split indoor and outdoor unit communication method as claimed in claim 3, wherein the indoor unit initial speed is identical to the outdoor unit initial speed.
5. The multi-connected indoor and outdoor unit communication method according to claim 4, wherein the outdoor unit initial speed is written in an EEPROM of the outdoor unit, and the indoor unit initial speed is written in the EEPROM of the indoor unit.
6. The multi-connected indoor and outdoor unit communication method according to claim 5, further comprising a step of updating the initial speed of the outdoor unit and the initial speed of the indoor unit after the step (4), wherein if the bus communication accuracy is between the lower limit value M1 and the upper limit value M2, the outdoor unit keeps the current communication speed for the next round of communication, and the current communication speeds are the initial speed of the outdoor unit and the initial speed of the indoor unit and are written into the EEPROM of the outdoor unit and the EEPROM of the indoor unit correspondingly.
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| CN108632109B (en) * | 2018-03-09 | 2020-11-10 | 珠海格力电器股份有限公司 | Network communication quality obtaining method, device and system |
| CN109743219A (en) * | 2019-03-22 | 2019-05-10 | 广东美的暖通设备有限公司 | Traffic rate optimization method, device and computer readable storage medium |
| CN112013506B (en) * | 2019-05-31 | 2022-02-25 | 青岛海尔空调电子有限公司 | Communication detection method and device and air conditioner |
| CN111371660A (en) * | 2020-03-13 | 2020-07-03 | 珠海格力电器股份有限公司 | Data acquisition method and device for improving balance and multi-split system |
| CN111835609B (en) * | 2020-05-28 | 2021-08-03 | 珠海格力电器股份有限公司 | Bus resource allocation method and device and air conditioning system |
| CN113932381B (en) * | 2020-07-13 | 2023-11-17 | 海信空调有限公司 | Air conditioner and remote upgrading method thereof |
| CN112611016B (en) * | 2020-11-23 | 2023-01-31 | 青岛海尔空调电子有限公司 | Multi-split multi-split outdoor unit communication method and multi-split unit |
| CN112443951A (en) * | 2020-11-30 | 2021-03-05 | 佛山市顺德区美的电子科技有限公司 | Anti-interference control method and device, storage medium, air conditioner and communication circuit |
| CN115102669B (en) * | 2022-06-24 | 2024-04-26 | 珠海格力电器股份有限公司 | Multi-split air conditioning system network communication method and device and multi-split air conditioning system |
Family Cites Families (13)
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|---|---|---|---|---|
| KR20090066828A (en) * | 2007-12-20 | 2009-06-24 | 삼성전자주식회사 | A communication method of system air conditioner |
| CN101282173B (en) * | 2008-05-21 | 2012-04-25 | 华为技术有限公司 | Method, system and apparatus for adjusting data package transmission velocity |
| CN102056095B (en) * | 2009-10-27 | 2014-04-02 | 中国移动通信集团公司 | Method, system and device for controlling short message transmitting flow rate |
| CN101699867A (en) * | 2009-10-28 | 2010-04-28 | 武汉世纪信通通信产业有限公司 | Dynamic adjustment method of video data transmission rate |
| WO2011150651A1 (en) * | 2010-12-29 | 2011-12-08 | 华为技术有限公司 | Congestion control method and device for data transmission |
| EP2670079B1 (en) * | 2011-01-27 | 2019-10-02 | Mitsubishi Electric Corporation | Communication interface device |
| CN102331074B (en) * | 2011-10-14 | 2014-01-01 | 青岛海尔空调电子有限公司 | Air-conditioning system and implementation method and device for controlling same |
| CN102387140B (en) * | 2011-10-18 | 2015-01-21 | 华为技术有限公司 | Method, device and system for developing multimedia services in WLAN (wireless local area network) |
| CN102769830B (en) * | 2012-07-24 | 2016-01-27 | 福建星网锐捷网络有限公司 | Multicast message sending method and device, the network equipment |
| CN103036754B (en) * | 2012-11-22 | 2015-11-04 | 青岛海尔空调电子有限公司 | A kind of multi-gang air-conditioner communication system and communication means |
| CN104348783B (en) * | 2013-07-26 | 2017-12-26 | 海尔集团公司 | A kind of method and device of multiple on-line system internal-external machine various protocols high-speed traffic |
| CN104728988B (en) * | 2013-12-18 | 2017-08-01 | 珠海格力电器股份有限公司 | Air conditioner and air-conditioning internal-external machine communication means, device, equipment |
| CN105066324B (en) * | 2015-07-15 | 2017-12-22 | 四川长虹电器股份有限公司 | Multi-connected air conditioner communication means |
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Effective date of registration: 20201112 Address after: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Patentee after: QINGDAO HAIER AIR CONDITIONER ELECTRIC Co.,Ltd. Patentee after: Haier Zhijia Co.,Ltd. Address before: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Patentee before: QINGDAO HAIER AIR CONDITIONER ELECTRIC Co.,Ltd. |