CN107036233B - Indoor and outdoor unit communication method and device of air conditioner multi-connected unit and air conditioner - Google Patents
Indoor and outdoor unit communication method and device of air conditioner multi-connected unit and air conditioner Download PDFInfo
- Publication number
- CN107036233B CN107036233B CN201710188741.0A CN201710188741A CN107036233B CN 107036233 B CN107036233 B CN 107036233B CN 201710188741 A CN201710188741 A CN 201710188741A CN 107036233 B CN107036233 B CN 107036233B
- Authority
- CN
- China
- Prior art keywords
- air conditioner
- air
- unit
- indoor unit
- outdoor unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004891 communication Methods 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 37
- 230000000694 effects Effects 0.000 claims abstract description 14
- 238000004378 air conditioning Methods 0.000 claims description 133
- 238000001514 detection method Methods 0.000 claims description 35
- 230000004044 response Effects 0.000 claims description 16
- 206010063385 Intellectualisation Diseases 0.000 abstract description 5
- 238000005457 optimization Methods 0.000 abstract description 4
- 239000003570 air Substances 0.000 description 333
- 238000010586 diagram Methods 0.000 description 12
- 238000005070 sampling Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 239000012080 ambient air Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Images
Classifications
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an indoor and outdoor unit communication method and device of an air conditioner multi-connected unit and an air conditioner, belonging to the technical field of air conditioners, wherein the communication method comprises the following steps: the air conditioner indoor units report data to the air conditioner outdoor units, and the air conditioner outdoor units determine whether to send an instruction for indicating a suction impedance matching loop to the air conditioner indoor units according to the data reported by the air conditioner indoor units; the method comprises the steps that an air conditioner indoor unit determines whether an instruction which indicates to pull in an impedance matching loop and is sent by an air conditioner outdoor unit is received; and when the indoor unit of the air conditioner determines to receive the instruction, the impedance matching loop is automatically closed. The air conditioner outdoor unit can automatically detect the terminal indoor unit and inform the terminal indoor unit of a suction impedance matching loop so as to achieve the optimal communication effect between the indoor unit and the outdoor unit, and the intellectualization of the optimization of the communication effect of the indoor unit and the outdoor unit is realized without manual participation.
Description
Technical Field
The invention relates to the field of air conditioners, in particular to an indoor unit and an outdoor unit communication method and device of an air conditioner multi-connected unit and an air conditioner.
Background
The multi-connected air conditioning unit comprises an indoor unit and an outdoor unit, wherein information communication is often performed between the indoor unit and the outdoor unit, such as the outdoor unit and the indoor unit of a multi-split air conditioning unit. Specifically, the number of single modules of the outdoor unit of the air conditioning multi-connected unit can be 32, and if four modules are assembled, the capacity of one set of outdoor unit can reach 128, and 128 indoor units can be connected.
From the development trend of the multi-split air conditioner, the number of outdoor unit sets is continuously increased, so that one outdoor unit set can be connected with more than 128 indoor units, and the more the connected indoor units are, the longer the distance between the outdoor unit and the indoor unit is; the outdoor unit and the indoor unit are communicated through a Homebus (home bus), the Homebus uses differential signal communication, signal refraction interference is easy to occur during long-distance communication, and when the distance between the outdoor unit and the indoor unit in the multi-connected air conditioner unit is too long, signal attenuation of the Homebus communication is more serious, so that the communication stability of the indoor unit and the outdoor unit of the multi-connected air conditioner unit cannot be ensured.
At present, the general method is that an impedance matching loop is installed on an outdoor unit computer board, all indoor units are marked with a corresponding impedance matching loop, and are matched with a dial-up selection switch, so that after-sale personnel are required to select the impedance matching loop of the indoor unit of the tail-end air conditioner effectively when the unit is debugged, and the intellectualization is insufficient.
Disclosure of Invention
In order to overcome the problems in the background art, the present disclosure provides an indoor and outdoor unit communication method and apparatus for a multi-connected air conditioner unit, and an air conditioner.
According to a first aspect of the embodiments of the present disclosure, there is provided a communication method for indoor and outdoor units of a multi-connected air conditioning unit, where the multi-connected air conditioning unit includes an outdoor unit and a plurality of indoor units connected to the outdoor unit, and the method includes:
the air-conditioning outdoor unit determines the tail end air-conditioning indoor unit connected with the air-conditioning outdoor unit according to the data reported by each air-conditioning indoor unit connected with the air-conditioning outdoor unit;
and the air conditioner outdoor unit controls the tail end air conditioner indoor unit to enable the tail end indoor unit to automatically attract the impedance matching loop.
In one embodiment, the determining, by the outdoor unit of the air conditioner, the connected end indoor unit of the air conditioner according to the data reported by each of the connected indoor units of the air conditioner includes:
the air conditioner outdoor unit respectively receives air pressure values reported by all air conditioner indoor units connected with the air conditioner outdoor unit;
the air-conditioning outdoor unit calculates to obtain the air pressure difference value between each air-conditioning indoor unit connected with the air-conditioning outdoor unit according to the air pressure value of the air-conditioning outdoor unit and the received air pressure value reported by each air-conditioning indoor unit connected with the air-conditioning outdoor unit;
the air-conditioning outdoor unit determines a tail end air-conditioning indoor unit connected with the air-conditioning outdoor unit according to the calculated air pressure difference values;
in one embodiment, the determining, by the outdoor unit of the air conditioner, the connected end indoor unit of the air conditioner according to the data reported by each of the connected indoor units of the air conditioner includes:
the air conditioner outdoor unit sends broadcast messages to each air conditioner indoor unit connected with the air conditioner outdoor unit and receives response messages of each air conditioner indoor unit to the broadcast messages;
and the air conditioner outdoor unit determines the tail end air conditioner indoor units connected with the air conditioner outdoor unit according to the response time of each air conditioner indoor unit to the broadcast message.
According to a second aspect of the embodiments of the present disclosure, there is provided a method for communicating indoor and outdoor units of a multi-connected air conditioning unit, where the multi-connected air conditioning unit includes an outdoor unit and a plurality of indoor units connected to the outdoor unit, and the method is applied to any indoor unit connected to the outdoor unit, and includes:
the air conditioner indoor unit reports data to the air conditioner outdoor unit, so that the air conditioner outdoor unit determines whether to send an instruction for indicating a suction impedance matching loop to the air conditioner indoor unit according to the data reported by each air conditioner indoor unit;
the indoor unit of the air conditioner determines whether an instruction which is sent by the outdoor unit of the air conditioner and indicates to pull in an impedance matching loop is received;
and when the indoor unit of the air conditioner determines to receive the instruction, the impedance matching loop is automatically closed.
In one embodiment, the reporting of the data from the air conditioner indoor unit to the air conditioner outdoor unit includes:
after the air-conditioning indoor unit is powered on, the built-in air pressure detection module is used for detecting the air pressure value of the air-conditioning indoor unit and reporting the measured air pressure value to the air-conditioning outdoor unit, so that the air-conditioning outdoor unit determines whether to send an instruction for indicating a suction impedance matching loop to the air-conditioning indoor unit or not according to the air pressure value reported by each air-conditioning indoor unit.
In one embodiment, when the indoor unit of the air conditioner determines that the instruction is received, the automatically closing impedance matching loop comprises:
and when the indoor air conditioner unit determines to receive the instruction, the built-in relay control unit is informed to control the built-in impedance matching unit to take effect, and an impedance matching loop is automatically closed to provide the communication quality between the indoor air conditioner unit and the outdoor air conditioner unit.
According to a third aspect of the embodiments of the present disclosure, there is provided an outdoor unit of an air conditioner connected to a plurality of indoor units of the air conditioner, the outdoor unit of the air conditioner including:
the judging module is configured to determine the tail end air-conditioning indoor unit connected with the judging module according to the data reported by each air-conditioning indoor unit connected with the judging module;
and the control module is configured to control the tail end air conditioner indoor unit to enable the tail end indoor unit to automatically attract the impedance matching loop.
In one embodiment, the determination module comprises:
the first communication sub-module is configured to receive air pressure values reported by the air conditioner indoor units connected with the first communication sub-module respectively;
the calculation submodule is configured to calculate to obtain an air pressure difference value between each air conditioner indoor unit connected with the calculation submodule according to the air pressure value of the calculation submodule and the received air pressure value reported by each air conditioner indoor unit connected with the calculation submodule;
the first judgment submodule is configured to determine the tail end air conditioner indoor unit connected with the first judgment submodule according to the calculated air pressure difference values;
in one embodiment, the determination module comprises:
the second communication sub-module is configured to send broadcast messages to each air conditioner indoor unit connected with the second communication sub-module and receive response messages of each air conditioner indoor unit to the broadcast messages;
and the second judgment submodule is configured to determine the tail end air-conditioning indoor unit connected with each air-conditioning indoor unit according to the response time of each air-conditioning indoor unit to the broadcast message.
According to a fourth aspect of the embodiments of the present disclosure, there is provided an indoor unit of an air conditioner, the indoor unit of the air conditioner being connected to an outdoor unit of the air conditioner, the indoor unit of the air conditioner including:
the communication module is configured to report data to the air conditioner outdoor unit, so that the air conditioner outdoor unit determines whether to send an instruction for indicating a suction impedance matching loop to the air conditioner indoor unit according to the data reported by each air conditioner indoor unit;
the judging module is configured to determine whether an instruction which is sent by the air conditioner outdoor unit and indicates to pull in an impedance matching loop is received;
and the impedance matching module is configured to automatically pull in the impedance matching loop when the instruction is determined to be received.
In one embodiment, the communication module is configured to detect an air pressure value of the indoor unit by an internal air pressure detection module after the indoor unit is powered on, and report the measured air pressure value to the outdoor unit of the air conditioner, so that the outdoor unit of the air conditioner determines whether to send an instruction for instructing to pull in the impedance matching loop to the indoor unit of the air conditioner according to the air pressure value reported by each indoor unit of the air conditioner.
In one embodiment, the impedance matching module is configured to notify the built-in relay control unit to control the built-in impedance matching unit to be effective when determining that the instruction is received, and automatically pull in an impedance matching loop to provide communication quality between the indoor unit and the outdoor unit of the air conditioner.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
the technical scheme provides an indoor and outdoor unit communication method and device of an air conditioner multi-connected unit and an air conditioner, wherein the communication method comprises the following steps: the air conditioner indoor units report data to the air conditioner outdoor units, and the air conditioner outdoor units determine whether to send an instruction for indicating a suction impedance matching loop to the air conditioner indoor units according to the data reported by the air conditioner indoor units; the method comprises the steps that an air conditioner indoor unit determines whether an instruction which indicates to pull in an impedance matching loop and is sent by an air conditioner outdoor unit is received; and when the indoor unit of the air conditioner determines to receive the instruction, the impedance matching loop is automatically closed. The air conditioner outdoor unit can automatically detect the terminal indoor unit and inform the terminal indoor unit of a suction impedance matching loop so as to achieve the optimal communication effect between the indoor unit and the outdoor unit, and the intellectualization of the optimization of the communication effect of the indoor unit and the outdoor unit is realized without manual participation.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic structural diagram of an air conditioning multi-connected unit according to an exemplary embodiment;
fig. 2 is a flow chart illustrating a method for communicating indoor and outdoor units of a multi-connected air conditioning unit according to an exemplary embodiment;
fig. 3 is a flowchart illustrating a method for measuring an air pressure of an outdoor unit of an air conditioner according to an exemplary embodiment;
fig. 4 is a flowchart illustrating a method for communicating between an indoor unit and an outdoor unit of a multi-connected air conditioning unit according to an exemplary embodiment;
fig. 5 is a flowchart of a method for measuring an air pressure of an indoor unit of an air conditioner according to an exemplary embodiment;
fig. 6 is an impedance matching control block diagram of a pull-in impedance matching loop of an indoor unit of an air conditioner according to an exemplary embodiment;
fig. 7 is a block diagram of an apparatus of an outdoor unit of an air conditioner according to an exemplary embodiment;
fig. 8 is a block diagram of an apparatus of an outdoor unit of an air conditioner according to an exemplary embodiment;
fig. 9 is a block diagram of an apparatus of an outdoor unit of an air conditioner according to an exemplary embodiment;
fig. 10 is a block diagram of an apparatus of an outdoor unit of an air conditioner according to an exemplary embodiment;
fig. 11 is a block diagram of an apparatus of an indoor unit of an air conditioner according to an exemplary embodiment;
fig. 12 is a block diagram of an apparatus of an indoor unit of an air conditioner according to an exemplary embodiment.
Detailed Description
The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of embodiments of the invention encompasses the full ambit of the claims, as well as all available equivalents of the claims. Embodiments may be referred to herein, individually or collectively, by the term "invention" merely for convenience and without intending to voluntarily limit the scope of this application to any single invention or inventive concept if more than one is in fact disclosed. Herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the structures, products and the like disclosed by the embodiments, the description is relatively simple because the structures, the products and the like correspond to the parts disclosed by the embodiments, and the relevant parts can be just described by referring to the method part.
Fig. 1 is a schematic structural diagram illustrating an air conditioning multi-connected unit according to an exemplary embodiment, and as shown in fig. 1, the air conditioning multi-connected unit includes: the system comprises an air conditioner outdoor unit 101 and a plurality of air conditioner indoor units 102 connected with the air conditioner outdoor unit 101, wherein the plurality of air conditioner indoor units 102 are connected in series through a home bus Homebus and then are connected in series with the air conditioner outdoor unit 101 through the Homebus;
here, as shown in fig. 1, the outdoor unit 101 is installed with an air pressure detection module, and each indoor unit 102 is also installed with an air pressure detection module, so that the indoor and outdoor units can measure their own air pressure parameters through their own installed air pressure detection modules.
Here, the outdoor unit and the indoor unit communicate information with each other through a home bus Homebus.
Based on the air conditioning multi-connected unit, an embodiment of the present invention provides a communication method for indoor and outdoor units of the air conditioning multi-connected unit, as shown in fig. 2, the method is applied to an outdoor unit of an air conditioner, and when the air conditioning unit is powered on, the method includes the following operation steps:
in step 201, the air conditioner outdoor unit determines the terminal air conditioner indoor unit connected to it according to the data reported by each air conditioner indoor unit connected to it;
in one embodiment, the determining, by the outdoor unit of the air conditioner, the connected end indoor unit of the air conditioner according to the data reported by each of the connected indoor units of the air conditioner may include:
the air conditioner outdoor unit respectively receives air pressure values reported by all air conditioner indoor units connected with the air conditioner outdoor unit;
the air-conditioning outdoor unit calculates to obtain the air pressure difference value between each air-conditioning indoor unit connected with the air-conditioning outdoor unit according to the air pressure value of the air-conditioning outdoor unit and the received air pressure value reported by each air-conditioning indoor unit connected with the air-conditioning outdoor unit; here, the air conditioner outdoor unit may measure an air pressure value thereof through an air pressure detection module provided therein, and subtract the air pressure value reported by each air conditioner indoor unit, thereby calculating an air pressure difference value between itself and each air conditioner indoor unit.
The air-conditioning outdoor unit determines the tail end air-conditioning indoor unit connected with the air-conditioning outdoor unit according to the air pressure difference values obtained by calculation;
the method for determining the tail end air-conditioning indoor unit connected with the air-conditioning outdoor unit according to the calculated air pressure difference values comprises the following steps: and the air-conditioning outdoor unit determines the air-conditioning indoor unit with the maximum calculated air pressure difference value as the tail-end air-conditioning indoor unit.
In one embodiment, referring to fig. 3, the detecting of the air pressure value of the outdoor unit of the air conditioner by the built-in air pressure detecting module may include the following steps:
in step 201-1, after the outdoor unit of the air conditioner is powered on, an air pressure detection module arranged in the outdoor unit automatically detects the air pressure of the outdoor unit;
in step 201-2, the computer motherboard of the air conditioner outdoor unit actively communicates with the air pressure detection module, and reads the air pressure value measured by the air pressure detection module;
here, the computer motherboard of the outdoor unit of the air conditioner may communicate with the air pressure detection module through UART or I2C, and the air pressure detection module may transmit the detected air pressure value to the computer motherboard of the outdoor unit of the air conditioner.
In step 201-3, the outdoor unit of the air conditioner determines whether to read the air pressure value sampling for the preset times completed by the air pressure detection module;
here, the predetermined number of times may be preset, for example, 20 times, 25 times, and the like, and the embodiment of the present invention does not limit this.
When the air conditioner outdoor unit determines that the air pressure value sampling is read from the air pressure detection module for the preset times, executing step 201-4;
when the air conditioner outdoor unit does not read the air pressure value sampling for the preset times from the air pressure detection module, continuing to execute the step 201-2;
in step 201-4, the computer motherboard of the air conditioner outdoor unit obtains an average air pressure value according to the sampled air pressure value, stores the average air pressure value as the air pressure value of the air conditioner outdoor unit in an EEPROM (electrically erasable and programmable read only memory), and stops data interaction between the air pressure detection module and the computer motherboard;
here, the air-conditioning outdoor unit needs to determine to complete the measurement of the air pressure of the air-conditioning outdoor unit before the whole unit operates, so that the problem that the detection result is inaccurate due to the air pressure change caused by the operation of a fan of the whole unit can be avoided.
In another embodiment, the determining, by the outdoor unit of the air conditioner, the connected end indoor unit of the air conditioner according to the data reported by the connected indoor units of the air conditioner may include:
the air conditioner outdoor unit sends broadcast messages to each air conditioner indoor unit connected with the air conditioner outdoor unit and receives response messages of each air conditioner indoor unit to the broadcast messages;
and the air conditioner outdoor unit determines the tail end air conditioner indoor unit connected with the air conditioner outdoor unit according to the response time of each air conditioner indoor unit to the broadcast message.
In the embodiment of the invention, the air conditioner outdoor unit and the air conditioner indoor units connected with the air conditioner outdoor unit are both internally provided with clocks which can be used for timing, the air conditioner outdoor unit sends broadcast messages to the air conditioner indoor units connected with the air conditioner outdoor unit so as to inquire whether the air conditioner indoor units connected with the air conditioner outdoor unit respond or not and start timing, response messages of the air conditioner indoor units to the broadcast messages are received, response time of the air conditioner indoor units responding to the broadcast messages is obtained based on the timers, and the air conditioner outdoor unit determines the tail end air conditioner indoor unit connected with the air conditioner indoor unit based on the response time, wherein the air conditioner indoor unit with the longest response time can be used as the.
In step 202, the outdoor unit of the air conditioner controls the terminal indoor unit of the air conditioner to automatically pull in the impedance matching loop.
In one embodiment, the outdoor unit notifies the determined end indoor unit of the air conditioner to pull in the impedance matching loop, so as to improve the communication quality between the end indoor unit of the air conditioner and the outdoor unit and ensure the stability of communication. The basic principle is as follows: under a high conversion rate of a signal, when the energy of the signal edge meets impedance mismatching, signal reflection can be generated; the geometrical structure of the cross section of the transmission line changes, the characteristic impedance of the cable also changes, and reflection is also caused; after the matching resistance is added, the reflected partial energy can be absorbed, the generation of ringing is avoided, and the communication quality is improved.
In summary, in the technical solution provided in the embodiments of the present invention, the air conditioning indoor unit reports data to the air conditioning outdoor unit, so that the air conditioning outdoor unit determines whether to send an instruction indicating the pull-in impedance matching loop to the air conditioning indoor unit according to the data reported by each air conditioning indoor unit; the method comprises the steps that an air conditioner indoor unit determines whether an instruction which indicates to pull in an impedance matching loop and is sent by an air conditioner outdoor unit is received; and when the indoor unit of the air conditioner determines to receive the instruction, the impedance matching loop is automatically closed. The air conditioner outdoor unit can automatically detect the terminal indoor unit and inform the terminal indoor unit of a suction impedance matching loop so as to achieve the optimal communication effect between the indoor unit and the outdoor unit, and the intellectualization of the optimization of the communication effect of the indoor unit and the outdoor unit is realized without manual participation.
Based on the air conditioning multi-connected unit, an embodiment of the present invention provides a communication method for indoor and outdoor units of an air conditioning multi-connected unit, where as shown in fig. 4, the method is applied to any air conditioning indoor unit in the air conditioning multi-connected unit, and when the air conditioning unit is powered on, the method includes the following operation steps:
in step 301, the air conditioning indoor units report data to the air conditioning outdoor unit, so that the air conditioning outdoor unit determines whether to send an instruction for instructing to pull in an impedance matching loop to the air conditioning indoor unit according to the data reported by each air conditioning indoor unit;
in one embodiment, the reporting of the data from the air conditioner indoor unit to the air conditioner outdoor unit includes:
after the air conditioner indoor unit is powered on, the built-in air pressure detection module is used for detecting the air pressure value of the air conditioner indoor unit and reporting the measured air pressure value to the air conditioner outdoor unit, so that the air conditioner outdoor unit determines whether to send an instruction for indicating a suction impedance matching loop to the air conditioner indoor unit or not according to the air pressure value reported by each air conditioner indoor unit.
Referring to fig. 5, the air conditioner indoor unit detects its own air pressure value through a built-in air pressure detection module, and reporting the measured air pressure value to the air conditioner outdoor unit may include the following operation steps:
in step 301-1, after the indoor unit of the air conditioner is powered on, an air pressure detection module arranged in the indoor unit automatically detects the air pressure of the indoor unit;
in step 301-2, a computer motherboard of the indoor unit of the air conditioner actively communicates with the air pressure detection module, and reads an air pressure value measured by the air pressure detection module;
here, the computer motherboard of the indoor unit of the air conditioner may communicate with the air pressure detection module through UART (serial port communication) or I2C, and the air pressure detection module may transmit the detected air pressure value to the computer motherboard of the indoor unit of the air conditioner.
In step 301-3, the indoor unit of the air conditioner determines whether to read the air pressure value sampling which is completed by the air pressure detection module for the preset times;
here, the predetermined number of times may be preset, for example, 20 times, 25 times, and the like, and the embodiment of the present invention does not limit this.
When the air conditioner indoor unit determines that the air pressure value sampling is read from the air pressure detection module for the preset times, executing a step 301-4;
when the air conditioner indoor unit does not read the air pressure value sampling for the preset times from the air pressure detection module, continuing to execute the step 301-2;
in step 301-4, the computer main board of the air-conditioning indoor unit calculates an air pressure average value according to the sampled air pressure value, stores the air pressure average value as the air pressure value of the air-conditioning indoor unit in the EEPROM, and stops data interaction between the air pressure detection module and the computer main board;
in step 301-5, when the air conditioner indoor unit communicates with the air conditioner outdoor unit, the determined air pressure value is reported to the air conditioner outdoor unit.
Here, the air-conditioning indoor unit needs to determine to finish the measurement of the air pressure before the whole unit operates, so that the problem that the detection result is inaccurate due to the air pressure change caused by the operation of a fan of the whole unit can be avoided.
In step 302, an air conditioner indoor unit determines whether an instruction for attracting an impedance matching loop is received, wherein the instruction is sent by the air conditioner outdoor unit;
in step 303, when the indoor unit of the air conditioner determines that the instruction is received, the impedance matching loop is automatically closed.
In one embodiment, when the indoor unit of the air conditioner determines that the instruction is received, automatically closing the impedance matching loop may include:
and when the indoor air conditioner unit determines to receive the instruction, the built-in relay control unit is informed to control the built-in impedance matching unit to take effect, and an impedance matching loop is automatically closed to provide the communication quality between the indoor air conditioner unit and the outdoor air conditioner unit.
In an embodiment, referring to fig. 6, the impedance matching control block diagram of the pull-in impedance matching circuit of the indoor unit of the air conditioner may include: the air conditioner comprises an air pressure detection module 401, an MCU control unit 402, a relay control unit 403, an air conditioner indoor and outdoor unit communication unit 404 and an air conditioner indoor and outdoor unit communication impedance matching unit 405;
the air pressure detection module 401 is connected with the MCU control unit 402, the MCU control unit 402 is connected with the relay control unit 403, the relay control unit 403 is connected with the air conditioner indoor and outdoor unit communication impedance matching unit 405, and the relay control unit 403 is connected with the air conditioner indoor and outdoor unit communication unit 404.
Here, the air pressure detecting module 401 is configured to detect a pressure value of an ambient air pressure of the indoor unit of the air conditioner, for example, detect an absolute pressure value of the ambient air pressure of the indoor unit of the air conditioner;
the MCU control unit 402 is configured to analyze the air pressure value of the air pressure detection module 401 and send a control instruction of the relay control unit 403;
a relay control unit 403 for determining whether the air conditioner indoor and outdoor unit communication impedance matching unit 405 is effective in attracting impedance matching;
an air conditioner indoor and outdoor unit communication impedance matching unit 405 for attracting an impedance matching loop to improve the communication quality of the air conditioner indoor and outdoor units;
and an air conditioner indoor and outdoor unit communication unit 404 for performing data communication between the air conditioner indoor and outdoor units.
In summary, in the technical solution provided in the embodiments of the present invention, the air conditioning indoor unit reports data to the air conditioning outdoor unit, so that the air conditioning outdoor unit determines whether to send an instruction indicating the pull-in impedance matching loop to the air conditioning indoor unit according to the data reported by each air conditioning indoor unit; the method comprises the steps that an air conditioner indoor unit determines whether an instruction which indicates to pull in an impedance matching loop and is sent by an air conditioner outdoor unit is received; and when the indoor unit of the air conditioner determines to receive the instruction, the impedance matching loop is automatically closed. According to the technical scheme, the air conditioner indoor unit can automatically attract the impedance matching loop according to the instruction sent by the outdoor unit so as to achieve the optimal communication effect between the indoor unit and the outdoor unit.
Fig. 7 is a block diagram illustrating an air conditioner outdoor unit 500, which may be connected to a plurality of air conditioner indoor units, according to an exemplary embodiment, and may include:
the determining module 501 may be configured to determine the terminal air-conditioning indoor unit connected to it according to the data reported by each air-conditioning indoor unit connected to it;
the control module 502 may be configured to control the terminal air conditioner indoor unit to automatically pull in the impedance matching loop.
Referring to fig. 8, in one embodiment, the decision module 501 shown in fig. 7 may include:
the first communication submodule 5011 may be configured to receive air pressure values reported by the air conditioner indoor units connected thereto, respectively;
the calculation submodule 5012 may be configured to calculate, according to the air pressure value of the calculation submodule and the received air pressure value reported by each air conditioner indoor unit connected to the calculation submodule, an air pressure difference value between each air conditioner indoor unit connected to the calculation submodule and the received air pressure value reported by each air conditioner indoor unit connected to the calculation submodule;
a first determination submodule 5013, which may be configured to determine the end air conditioning indoor unit connected thereto according to the calculated pressure difference values;
referring to fig. 9, in one embodiment, the determining module 501 shown in fig. 7 may further include:
the second communication submodule 5014 may be configured to send a broadcast message to each air conditioner indoor unit connected thereto, and receive a response message of each air conditioner indoor unit to the broadcast message;
the second determining submodule 5015 may be configured to determine the end air conditioning indoor units connected thereto according to the response time of each air conditioning indoor unit to the broadcast message.
Referring to fig. 10, in an embodiment, the indoor unit of an air conditioner as shown in fig. 7 may further include:
an air pressure measuring module 503, which may be configured to measure an air pressure value of an environment where the air conditioner outdoor unit 500 is located;
and an outdoor-indoor unit communication module 504 configured to communicate with the air-conditioning indoor unit to which the outdoor unit 500 is connected.
To sum up, according to the technical scheme provided by the embodiment of the present disclosure, an air conditioner indoor unit reports data to an air conditioner outdoor unit, so that the air conditioner outdoor unit determines whether to send an instruction indicating a pull-in impedance matching loop to the air conditioner indoor unit according to the data reported by each air conditioner indoor unit; the method comprises the steps that an air conditioner indoor unit determines whether an instruction which indicates to pull in an impedance matching loop and is sent by an air conditioner outdoor unit is received; and when the indoor unit of the air conditioner determines to receive the instruction, the impedance matching loop is automatically closed. The air conditioner outdoor unit can automatically detect the terminal indoor unit and inform the terminal indoor unit of a suction impedance matching loop so as to achieve the optimal communication effect between the indoor unit and the outdoor unit, and the intellectualization of the optimization of the communication effect of the indoor unit and the outdoor unit is realized without manual participation.
Fig. 11 is a block diagram illustrating an air conditioning indoor unit 600 according to an exemplary embodiment, where the air conditioning indoor units 600 are connected to and communicate with an air conditioning outdoor unit, and may include:
the communication module 601 may be configured to report data to the outdoor unit of the air conditioner, so that the outdoor unit of the air conditioner determines whether to send an instruction indicating to pull in an impedance matching loop to the indoor unit of the air conditioner according to the data reported by each indoor unit of the air conditioner;
a determining module 602, configured to determine whether an instruction indicating to pull in an impedance matching loop sent by the outdoor unit of the air conditioner is received;
the impedance matching module 603 may be configured to determine that the impedance matching loop is automatically pulled in when the instruction is received.
In an embodiment, the communication module 601 is configured to detect an air pressure value of the indoor unit by using an internal air pressure detection module after the indoor unit is powered on, and report the measured air pressure value to the outdoor unit of the air conditioner, so that the outdoor unit of the air conditioner determines whether to send an instruction for instructing to pull in the impedance matching loop to the indoor unit of the air conditioner according to the air pressure value reported by each indoor unit of the air conditioner.
In one embodiment, the impedance matching module 603 is configured to notify the built-in relay control unit to control the built-in impedance matching unit to be effective when it is determined that the instruction is received, and automatically pull in an impedance matching loop to provide communication quality between the indoor unit and the outdoor unit of the air conditioner.
In one embodiment, referring to fig. 12, the air conditioning indoor unit 600 shown in fig. 11 further includes:
the air pressure detection module 604 is configured to detect an air pressure value of an environment where the indoor unit 600 of the air conditioner is located.
In summary, in the technical solution provided in the embodiments of the present invention, the air conditioning indoor unit reports data to the air conditioning outdoor unit, so that the air conditioning outdoor unit determines whether to send an instruction indicating the pull-in impedance matching loop to the air conditioning indoor unit according to the data reported by each air conditioning indoor unit; the method comprises the steps that an air conditioner indoor unit determines whether an instruction which indicates to pull in an impedance matching loop and is sent by an air conditioner outdoor unit is received; and when the indoor unit of the air conditioner determines to receive the instruction, the impedance matching loop is automatically closed. According to the technical scheme, the air conditioner indoor unit can automatically attract the impedance matching loop according to the instruction sent by the outdoor unit so as to achieve the optimal communication effect between the indoor unit and the outdoor unit.
It is to be understood that the present invention is not limited to the procedures and structures described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (4)
1. A communication method for indoor units and outdoor units of a multi-connected air conditioner unit comprises the following steps:
the air-conditioning outdoor unit determines the tail end air-conditioning indoor unit connected with the air-conditioning outdoor unit according to the data reported by each air-conditioning indoor unit connected with the air-conditioning outdoor unit;
the air conditioner outdoor unit controls the tail end air conditioner indoor unit to enable the tail end air conditioner indoor unit to automatically attract the impedance matching loop;
the method for determining the tail end air-conditioning indoor unit connected with the air-conditioning outdoor unit according to the data reported by each air-conditioning indoor unit connected with the air-conditioning outdoor unit comprises the following steps:
the air conditioner outdoor unit respectively receives air pressure values reported by all air conditioner indoor units connected with the air conditioner outdoor unit;
the air-conditioning outdoor unit calculates to obtain the air pressure difference value between each air-conditioning indoor unit connected with the air-conditioning outdoor unit according to the air pressure value of the air-conditioning outdoor unit and the received air pressure value reported by each air-conditioning indoor unit connected with the air-conditioning outdoor unit;
the air-conditioning outdoor unit determines a tail end air-conditioning indoor unit connected with the air-conditioning outdoor unit according to the calculated air pressure difference values; or,
the air conditioner outdoor unit sends broadcast messages to each air conditioner indoor unit connected with the air conditioner outdoor unit and receives response messages of each air conditioner indoor unit to the broadcast messages;
and the air conditioner outdoor unit determines the tail end air conditioner indoor units connected with the air conditioner outdoor unit according to the response time of each air conditioner indoor unit to the broadcast message.
2. A method for communicating indoor units and outdoor units of a multi-connected air conditioning unit is characterized in that the multi-connected air conditioning unit comprises an air conditioning outdoor unit and a plurality of air conditioning indoor units connected with the air conditioning outdoor unit, and the method is applied to any air conditioning indoor unit connected with the air conditioning outdoor unit and comprises the following steps:
the air conditioner indoor unit reports data to the air conditioner outdoor unit, so that the air conditioner outdoor unit determines whether to send an instruction for indicating a suction impedance matching loop to the air conditioner indoor unit according to the data reported by each air conditioner indoor unit;
the indoor unit of the air conditioner determines whether an instruction which is sent by the outdoor unit of the air conditioner and indicates to pull in an impedance matching loop is received;
when the indoor unit of the air conditioner determines to receive the instruction, the impedance matching loop is automatically closed;
when the indoor unit of the air conditioner determines to receive the instruction, the automatic pull-in impedance matching loop comprises:
when the indoor air conditioner unit determines to receive the instruction, the built-in relay control unit is informed to control the built-in impedance matching unit to take effect, and an impedance matching loop is automatically closed to provide communication quality between the indoor air conditioner unit and the outdoor air conditioner unit;
the reporting of the data from the indoor unit of the air conditioner to the outdoor unit of the air conditioner comprises the following steps:
after the air-conditioning indoor unit is powered on, the built-in air pressure detection module is used for detecting the air pressure value of the air-conditioning indoor unit and reporting the measured air pressure value to the air-conditioning outdoor unit, so that the air-conditioning outdoor unit determines whether to send an instruction for indicating a suction impedance matching loop to the air-conditioning indoor unit or not according to the air pressure value reported by each air-conditioning indoor unit.
3. An outdoor unit of an air conditioner, the outdoor unit of the air conditioner being connected to a plurality of indoor units of the air conditioner, the outdoor unit of the air conditioner comprising:
the judging module is configured to determine the tail end air-conditioning indoor unit connected with the judging module according to the data reported by each air-conditioning indoor unit connected with the judging module;
the control module is configured to control the tail end air conditioner indoor unit to enable the tail end air conditioner indoor unit to automatically attract the impedance matching loop;
wherein the determination module comprises:
the first communication sub-module is configured to receive air pressure values reported by the air conditioner indoor units connected with the first communication sub-module respectively;
the calculation submodule is configured to calculate to obtain an air pressure difference value between each air conditioner indoor unit connected with the calculation submodule according to the air pressure value of the calculation submodule and the received air pressure value reported by each air conditioner indoor unit connected with the calculation submodule;
the first judgment submodule is configured to determine the tail end air conditioner indoor unit connected with the first judgment submodule according to the calculated air pressure difference values;
alternatively, the determination module includes:
the second communication sub-module is configured to send broadcast messages to each air conditioner indoor unit connected with the second communication sub-module and receive response messages of each air conditioner indoor unit to the broadcast messages;
and the second judgment submodule is configured to determine the tail end air-conditioning indoor unit connected with each air-conditioning indoor unit according to the response time of each air-conditioning indoor unit to the broadcast message.
4. The utility model provides an indoor set of air conditioning, the indoor set of air conditioning links to each other with outdoor unit of air conditioner, its characterized in that, the indoor set of air conditioning includes:
the communication module is configured to report data to the air conditioner outdoor unit, so that the air conditioner outdoor unit determines whether to send an instruction for indicating a suction impedance matching loop to the air conditioner indoor unit according to the data reported by each air conditioner indoor unit;
the judging module is configured to determine whether an instruction which is sent by the air conditioner outdoor unit and indicates to pull in an impedance matching loop is received;
the impedance matching module is configured to automatically pull in an impedance matching loop when the instruction is determined to be received;
the impedance matching module is configured to inform a built-in relay control unit to control the built-in impedance matching unit to take effect and automatically attract an impedance matching loop to provide communication quality between the indoor unit and the outdoor unit of the air conditioner when the instruction is determined to be received;
the communication module is configured to detect an air pressure value of the indoor unit through a built-in air pressure detection module after the indoor unit is powered on, and report the measured air pressure value to the air conditioner outdoor unit, so that the air conditioner outdoor unit determines whether to send an instruction for indicating a suction impedance matching loop to the air conditioner indoor unit according to the air pressure value reported by each air conditioner indoor unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710188741.0A CN107036233B (en) | 2017-03-27 | 2017-03-27 | Indoor and outdoor unit communication method and device of air conditioner multi-connected unit and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710188741.0A CN107036233B (en) | 2017-03-27 | 2017-03-27 | Indoor and outdoor unit communication method and device of air conditioner multi-connected unit and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107036233A CN107036233A (en) | 2017-08-11 |
| CN107036233B true CN107036233B (en) | 2020-10-20 |
Family
ID=59534589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710188741.0A Active CN107036233B (en) | 2017-03-27 | 2017-03-27 | Indoor and outdoor unit communication method and device of air conditioner multi-connected unit and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107036233B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107800600A (en) * | 2017-10-09 | 2018-03-13 | 珠海格力电器股份有限公司 | Lower computer election and activation method, upper computer and lower computer |
| CN108562010B (en) | 2018-03-02 | 2019-12-27 | 珠海格力电器股份有限公司 | Networking method and device of air conditioning unit |
| CN108592312B (en) * | 2018-04-13 | 2020-11-10 | 珠海格力电器股份有限公司 | Method, device and system for checking wireless networking of air conditioning unit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006112704A (en) * | 2004-10-14 | 2006-04-27 | Matsushita Electric Ind Co Ltd | Communication circuit for facility equipment |
| CN102022806A (en) * | 2009-09-09 | 2011-04-20 | 日立空调·家用电器株式会社 | Air conditioner |
| CN103017259A (en) * | 2011-09-19 | 2013-04-03 | 三星电子株式会社 | Air conditioner |
| CN104296330A (en) * | 2013-07-19 | 2015-01-21 | 青岛海尔空调电子有限公司 | Air conditioning outdoor unit, method for adjusting communication line impedance and air conditioning unit system |
| CN104833041A (en) * | 2014-02-12 | 2015-08-12 | 海尔集团公司 | Multi-connected air conditioner pipeline balance method and multi-connected air condition |
| CN105352138A (en) * | 2015-12-04 | 2016-02-24 | 珠海格力电器股份有限公司 | Method and device for monitoring communication between internal machine and external machine of variable frequency air conditioner and air conditioning system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100123486A (en) * | 2009-05-15 | 2010-11-24 | 엘지전자 주식회사 | Air conditioner and controlling method thereof |
-
2017
- 2017-03-27 CN CN201710188741.0A patent/CN107036233B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006112704A (en) * | 2004-10-14 | 2006-04-27 | Matsushita Electric Ind Co Ltd | Communication circuit for facility equipment |
| CN102022806A (en) * | 2009-09-09 | 2011-04-20 | 日立空调·家用电器株式会社 | Air conditioner |
| CN103017259A (en) * | 2011-09-19 | 2013-04-03 | 三星电子株式会社 | Air conditioner |
| CN104296330A (en) * | 2013-07-19 | 2015-01-21 | 青岛海尔空调电子有限公司 | Air conditioning outdoor unit, method for adjusting communication line impedance and air conditioning unit system |
| CN104833041A (en) * | 2014-02-12 | 2015-08-12 | 海尔集团公司 | Multi-connected air conditioner pipeline balance method and multi-connected air condition |
| CN105352138A (en) * | 2015-12-04 | 2016-02-24 | 珠海格力电器股份有限公司 | Method and device for monitoring communication between internal machine and external machine of variable frequency air conditioner and air conditioning system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107036233A (en) | 2017-08-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107036233B (en) | Indoor and outdoor unit communication method and device of air conditioner multi-connected unit and air conditioner | |
| CN103062865B (en) | Device and method for detecting communication quality of indoor unit and outdoor unit of air-conditioning unit | |
| US9693120B2 (en) | System and method for transmitting measurement signals in spatially extensive supply networks | |
| CN104765349B (en) | A kind of method and server, control device for managing intelligent home device | |
| CN103631248A (en) | Testing device, testing method and testing system for air conditioner unit | |
| CN105423482B (en) | A kind of temperature checking method and air-conditioning | |
| CN107167223B (en) | Variable frequency air conditioner compressor and pipeline vibration testing system and method | |
| CN216285589U (en) | Signal acquisition equipment and detection system of air conditioner electric control board | |
| CN110173803A (en) | Air conditioner and its communication control method, device and electronic equipment | |
| CN111044806A (en) | Equipment fault positioning method and device and server | |
| CN112118591A (en) | Equipment network state analysis control method, system and computer storage medium | |
| CN204439108U (en) | Automatic detection device for multi-path temperature and humidity sensors | |
| EP3496286A1 (en) | Communication device and communication system | |
| CN104197976A (en) | Automatic detection device for multi-path temperature and humidity sensors | |
| CN115792156B (en) | Control method and device for on-line monitoring of multi-parameter water quality | |
| KR101499863B1 (en) | Line check system for centralized main distribution frame | |
| CN207815606U (en) | System for detecting state of return air filter screen | |
| CN108981076A (en) | Unit control method and system and air conditioner | |
| CN111182007A (en) | Fault processing method for household appliance | |
| CN115111703A (en) | Method, terminal and storage medium for detecting filth blockage of water-cooled air conditioner | |
| CN110686358B (en) | Variable frequency air conditioner fault diagnosis method based on detection tool | |
| CN111585670B (en) | Detection method and detection system of wireless detection system | |
| CN110131835B (en) | Control method for judging cleaning prompt of air conditioner based on humidity parameter | |
| CN114382718B (en) | Fan fault identification method and system for central range hood | |
| US20060291397A1 (en) | Method and device for determining and optionally for evaluatiing disturbances and/or interruptions in the communication with domestic appliances |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201105 Address after: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Patentee after: QINGDAO HAIER AIR-CONDITIONING ELECTRONIC Co.,Ltd. Patentee after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Patentee before: QINGDAO HAIER AIR-CONDITIONING ELECTRONIC Co.,Ltd. |