CN111023269B - Online detection method and device for multi-split air conditioner indoor unit and multi-split air conditioner - Google Patents

Online detection method and device for multi-split air conditioner indoor unit and multi-split air conditioner Download PDF

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Publication number
CN111023269B
CN111023269B CN201911398287.7A CN201911398287A CN111023269B CN 111023269 B CN111023269 B CN 111023269B CN 201911398287 A CN201911398287 A CN 201911398287A CN 111023269 B CN111023269 B CN 111023269B
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outdoor unit
indoor
air conditioner
unit
communication
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CN111023269A (en
Inventor
李兆东
黄春
刘合心
章秋平
刘潘
朱礼晋
牛晓峰
肖旭东
吴海波
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Ningbo Aux Electric Co Ltd
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Ningbo Aux Electric Co Ltd
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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
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
    • 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
    • F24F11/32—Responding to malfunctions or emergencies
    • 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
    • F24F11/52—Indication arrangements, e.g. displays
    • F24F11/526—Indication arrangements, e.g. displays giving audible indications
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • 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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/88—Electrical aspects, e.g. circuits

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The embodiment of the invention provides an online detection method and device for an indoor unit of a multi-split air conditioner and the multi-split air conditioner, and relates to the technical field of multi-split air conditioners. The online detection method of the multi-connected air conditioner indoor unit comprises the following steps: acquiring the online quantity of the indoor units which normally communicate with the outdoor unit; and when the online number is smaller than a preset value, controlling the indoor unit to execute corresponding actions according to the communication state of the outdoor unit so as to distinguish the indoor units in different communication states with the outdoor unit. Therefore, when an indoor unit which is abnormally communicated with the outdoor unit appears, a user can be quickly helped to discriminate the indoor unit which is out of line, and related personnel can be timely reminded to overhaul.

Description

Online detection method and device for multi-split air conditioner indoor unit and multi-split air conditioner
Technical Field
The invention relates to the technical field of multi-split air conditioners, in particular to a method and a device for online detection of an indoor unit of a multi-split air conditioner and the multi-split air conditioner.
Background
The air conditioner provides diversified environment control services for an indoor space through cooperation of the indoor unit and the outdoor unit. An effective communication link is a precondition for ensuring the cooperation of the indoor unit and the outdoor unit. However, due to an installation error or a long use time, an abnormality may occur in communication between the indoor unit and the outdoor unit. For example, the communication line is wrongly connected, missed connected, dropped after a long time use or damaged on the main board.
For a multi-split air conditioner, because the number of indoor units is large, no matter any communication link between any indoor unit and an outdoor unit is abnormal, the communication link can only be found when the multi-split air conditioner is started, and if all the indoor units are not subjected to communication tests, the indoor units with abnormal communication cannot be easily checked. Even experienced maintenance personnel have difficulty in quickly and accurately identifying an indoor unit having an abnormal communication with an outdoor unit.
Disclosure of Invention
The invention solves the problem of how to timely find the indoor unit which is disconnected and prompt a user of the disconnected indoor unit.
In order to solve the above problems, the embodiments of the present invention adopt the following technical solutions:
in a first aspect, an embodiment provides an online detection method for multiple air conditioner indoor units, which is applied to a multiple air conditioner, wherein the multiple air conditioner comprises an outdoor unit and a plurality of indoor units, and the online detection method for the multiple air conditioner indoor units comprises the following steps: acquiring the online quantity of the indoor units which normally communicate with the outdoor unit; and when the online number is smaller than a preset value, controlling the indoor unit to execute corresponding actions according to the communication state of the outdoor unit so as to distinguish the indoor units in different communication states with the outdoor unit. Therefore, on the premise of starting all the indoor units, the user can be timely and accurately helped to identify the indoor unit which is disconnected, and related personnel can be timely reminded to overhaul.
In an optional embodiment, when the multi-split air conditioner enters a debugging phase, the step of acquiring the online number of the indoor units which normally communicate with the outdoor unit includes: the outdoor unit distributes communication addresses to the indoor units; the outdoor unit takes the number of the communication addresses that have been successfully distributed as the online number. Therefore, the distribution process of the communication addresses in the debugging stage is fully utilized, the number of the indoor units which are normally communicated with the outdoor unit is counted, and no extra operation load is generated.
In an optional embodiment, the step of distributing the communication address to the plurality of indoor units by the outdoor unit includes: broadcasting a position robbing message carrying one communication address to a plurality of indoor units in each round; when receiving a first response message fed back by the indoor unit, sending a confirmation message to the indoor unit which firstly feeds back the first response message, and accumulating the number of the successfully distributed communication addresses so as to start the next round of communication address distribution; and when the first response message fed back by the indoor unit is not received, reading the number of the communication addresses which are successfully distributed. The communication state between the indoor unit and the outdoor unit is ensured to be rapidly and accurately identified, and the accuracy of judging the communication state is improved.
In an optional embodiment, the step of distributing the communication address to the plurality of indoor units by the outdoor unit further includes: and when the indoor unit which firstly feeds back the first response message comprises a plurality of indoor units, judging that the communication address allocation of the current round fails, and starting the communication address allocation of the next round. The number of the online indoor units is prevented from being judged by mistake.
In an optional embodiment, when the multi-split air conditioner is in an operation stage, the step of acquiring the online number of the indoor units which normally communicate with the outdoor unit includes: the outdoor unit polls each indoor unit according to the distributed communication address; and the outdoor unit receives and counts second response messages fed back by the polled indoor units to serve as the online quantity. In the project of putting the multi-split air conditioner into use, whether the indoor unit is disconnected or not can be accurately identified.
In an optional embodiment, the controlling the indoor unit to perform a corresponding action according to the communication state with the outdoor unit includes: the indoor unit with the normal outdoor unit control communication state executes a first action; the indoor unit which is abnormal in communication state with the outdoor unit and is not powered off is automatically triggered to execute a second action; and the indoor unit which is abnormal in communication state with the outdoor unit and has power failure does not execute actions.
In an optional embodiment, the online detection method for the multi-connected air conditioner indoor unit further includes: and when the online quantity is equal to a preset value and a confirmation instruction triggered by a user is not obtained, controlling the indoor unit to execute a first action. So, can avoid installer to omit the inspection in the installation stage, and lead to the later stage to cause unnecessary reworking.
In an optional embodiment, the online detection method for the multi-connected air conditioner indoor unit further includes: and when the online number is smaller than a preset value, the outdoor unit warns and displays the communication address of the indoor unit which does not feed back the second response message.
In a second aspect, an embodiment provides an online detection device for multiple air conditioners, which is applied to multiple air conditioners, each multiple air conditioner includes an outdoor unit and multiple indoor units, and the online detection device for multiple air conditioners includes: the acquisition module is used for acquiring the online quantity of the indoor units which normally communicate with the outdoor unit; and the control module is used for controlling the indoor unit to execute corresponding actions according to the communication state of the outdoor unit when the online quantity is less than a preset value so as to distinguish the indoor units in different communication states with the outdoor unit.
In a third aspect, an embodiment provides a multi-split air conditioner, including an indoor unit and an outdoor unit, where the indoor unit and the outdoor unit each include a processing chip, and the processing chip may execute a machine executable instruction to implement the method in any one of the foregoing embodiments.
In a fourth aspect, embodiments provide a computer-readable storage medium, on which a computer program is stored, which, when executed by a processor, implements the method according to any of the preceding embodiments.
Compared with the prior art, the online detection method for the multi-connected air conditioner indoor unit, provided by the embodiment of the invention, has the advantages that the online quantity of the indoor units which are normally communicated with the outdoor unit is obtained, the indoor units are triggered to execute corresponding actions according to the communication state of the outdoor unit by utilizing the comparison result between the online quantity and the preset value, and the indoor units in different communication states between the indoor units and the outdoor unit are distinguished by the corresponding actions executed by the indoor units. Therefore, the user can be quickly helped to discriminate the off-line indoor unit, and related personnel can be timely reminded to overhaul.
Drawings
Fig. 1 is a schematic view of a multi-split air conditioner according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating one step of an online detection method for an indoor unit of a multi-connected air conditioner according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating sub-steps of step S101 shown in FIG. 2;
FIG. 4 is a second flowchart illustrating the sub-steps of step S101 shown in FIG. 2;
FIG. 5 is a flowchart illustrating sub-steps of step S102 in FIG. 2;
fig. 6 is a second flowchart illustrating steps of an online detection method for a multi-connected air conditioner internal unit according to an embodiment of the present invention;
fig. 7 is a schematic diagram of an online detection device for an indoor unit of a multi-connected air conditioner according to an embodiment of the present invention.
Description of reference numerals:
100-a multi-split air conditioner; 110-a memory; 120-processing the chip; 130-a communication module; 200-online detection device for multi-connected air conditioner indoor units; 201-an acquisition module; 202-control module.
Detailed Description
The multi-split air conditioner comprises at least one outdoor unit and a plurality of indoor units. Each outdoor unit corresponds to a plurality of indoor units, and a communication link is established between each outdoor unit and the corresponding indoor unit so as to realize that each indoor unit can be in communication connection with the corresponding outdoor unit. The communication link may be a wired communication link or a wireless communication link.
However, the communication link between the indoor unit and the outdoor unit may be abnormal due to carelessness of an installer during an installation and debugging stage, and may also be abnormal due to an excessively long use time, damage or looseness of original components. The normal operation of the multi-split air conditioner is influenced by the abnormal communication between the indoor unit and the outdoor unit.
In addition, installation of the multi-split air conditioner is generally performed during decoration. That is, even if the communication between an indoor unit and an outdoor unit is abnormal, the communication can be found after the user stays and uses the communication, and the user is troublesome to request for maintenance.
Meanwhile, other indoor units which are not found by a user may exist in the indoor units which are disconnected, and at this time, even if a maintenance worker knows that a plurality of indoor units which are disconnected exist in the indoor units corresponding to the outdoor units at present, all the indoor units must be started in sequence to perform communication tests, all the disconnected indoor units can be determined, which is very inconvenient and also influences user experience.
In order to solve the above problems, embodiments of the present invention provide an online detection method and an online detection device for an indoor unit of a multi-split air conditioner, and the multi-split air conditioner.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In some embodiments, the indoor unit and the outdoor unit of the multi-split air conditioner 100 are provided with a controller. Alternatively, as shown in fig. 1, the controller of the outdoor unit includes: the device comprises a memory 110, a processing chip 120, a communication module 130 and a multi-connected air conditioner indoor unit online detection device 200. The memory 110 and the communication module 130 are electrically connected to the processing chip 120. The online detection device 200 of the multi-connected air conditioner indoor unit comprises at least one device which can be stored in the memory 110 in the form of software or firmware (firmware).
Similarly, the controller of the indoor unit may further include: the device comprises a memory 110, a processing chip 120, a communication module 130 and a multi-connected air conditioner indoor unit online detection device 200. The memory 110 and the communication module 130 are electrically connected to the processing chip 120. The online detection device 200 of the multi-connected air conditioner indoor unit comprises at least one device which can be stored in the memory 110 in the form of software or firmware (firmware).
The communication module 130 is used for implementing data interaction. Alternatively, the communication module 130 may be a communication interface, and thus, the communication module 130 of the indoor unit and the communication module 130 of the outdoor unit may be electrically connected through a communication line. Optionally, the communication module 130 may be a communication chip capable of implementing wireless communication, so that the communication module 130 of the indoor unit and the communication module 130 of the outdoor unit can implement data interaction through the communication chip.
The memory 110 may be configured to store software programs and units, such as program instruction units corresponding to the online detection device 200 and the method for a multi-connected air conditioner indoor unit in the embodiment of the present invention, and the processing chip 120 executes various functional applications and data processing by operating the software programs and units of the online detection device 200 and the method for a multi-connected air conditioner indoor unit stored in the memory 110, such as the online detection method for a multi-connected air conditioner indoor unit provided in the embodiment of the present invention. The Memory 110 may be, but is not limited to, a Random Access Memory (RAM), a Read Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Read-Only Memory (EPROM), an electrically Erasable Read-Only Memory (EEPROM), and the like.
In some other embodiments, the multi-split air conditioner 100 further includes a main controller in addition to the controllers installed in the indoor and outdoor units. The main controller is electrically connected with all the controllers of the indoor units and the outdoor units and is used for acquiring data from the controllers of all the indoor units and the outdoor units or sending instructions to the controllers of all the indoor units and the outdoor units.
Referring to fig. 2, fig. 2 shows an online detection method for a multi-connected air conditioner indoor unit according to an embodiment of the present invention. The online detection method for the multi-split air conditioner indoor unit is applied to the multi-split air conditioner 100. As shown in fig. 2, the online detection method for the multi-connected air conditioner indoor unit may include the following steps:
step 101, obtaining the online number of indoor units which normally communicate with an outdoor unit.
In some embodiments, the multi-split air conditioner 100 may check the communication status between each indoor unit and the outdoor unit in real time, and count the number of indoor units with normal communication status with the outdoor unit after each check to obtain the online number (hereinafter referred to as online number) of indoor units with normal communication status with the outdoor unit.
As described above, communication abnormalities between the indoor unit and the outdoor unit may occur at various stages, for example, at the installation and commissioning stage of the multi-split air conditioner 100 or at the operation stage of the multi-split air conditioner 100.
In the first scenario, when the multi-split air conditioner 100 is in the installation stage, the debugging stage is performed after the unit wiring of the multi-split air conditioner 100 is completed. And after entering a debugging stage, actively starting to acquire the online quantity of the indoor units which are normally communicated with the outdoor unit.
In a first scenario, the obtaining of the online number of the indoor units in normal communication with the outdoor unit may be performed by the outdoor unit.
The step of acquiring the online number of the indoor units in normal communication with the outdoor unit by the outdoor unit may be as shown in fig. 3, and includes:
step S101-1, the outdoor unit distributes communication addresses to the indoor units.
In this embodiment of the present invention, the communication address distribution manner may include any one of the following:
first, the communication address may be allocated by a round-by-round allocation strategy. That is, one communication address is assigned per round, and one communication address can be used by only one indoor unit. And stopping distribution after the indoor units with normal communication obtain the communication addresses.
As an embodiment, the above strategy for round-by-round allocation may be:
(1) and broadcasting a position robbing message carrying one communication address to a plurality of indoor units by each round of the outdoor unit.
(2) And when receiving the first response message fed back by the indoor unit, sending a confirmation message to the indoor unit which firstly feeds back the first response message, and prompting the indoor unit to store the communication address. In this way, the indoor unit can communicate with the outdoor unit based on the communication address. It can be understood that the indoor unit that first feeds back the first response packet may be determined according to the sequence in which the outdoor unit receives the first response packet. It is understood that the sending of the completion confirmation message indicates that the round of communication address assignment is successfully completed, and at this time, the number of successfully distributed communication addresses is increased by one. And then starting the next round of communication address allocation.
(3) And when the first response message fed back by the indoor units is not received, representing that all the indoor units which are normally communicated with the outdoor unit have obtained the communication addresses. At this time, the number of communication addresses that have been successfully distributed can be read.
To facilitate the understanding of the above-described strategy for round-by-round allocation by those skilled in the art, the following is described as an example:
the outdoor unit generates a position-robbing message 1 based on the communication address 1#, then broadcasts the position-robbing message 1, and after receiving the position-robbing message 1, the indoor unit which does not store the communication address generates a first response message and sends the first response message to the corresponding outdoor unit. The outdoor unit feeds back a confirmation message 1 to the first indoor unit which feeds back the first response message, and the outdoor unit records the number of the successfully distributed communication addresses as 1. The indoor unit that receives the acknowledgment message 1 stores the communication address 1 #. And then, the outdoor unit generates a position-robbing message 2 based on the communication address 2#, then broadcasts the position-robbing message 2, and generates a first response message and sends the first response message to the corresponding outdoor unit after the indoor unit which does not store the communication address receives the position-robbing message 2. And the outdoor unit feeds back a confirmation message 2 to the first indoor unit which feeds back the first response message, and adds one to the number of the successfully distributed communication addresses, and the number is recorded as 2. The indoor unit that receives the confirmation message 2 stores the communication address 2 #. And then, the outdoor unit continues to generate a position-robbing message 3 based on the communication address 3#, then broadcasts the position-robbing message 3, and if the specified time length is exceeded and the first response message fed back by the indoor unit is received, the communication address allocation failure in the current round is judged, and meanwhile, the communication address allocation is stopped continuously. Finally, the number of communication addresses that have been successfully distributed is read.
Optionally, since the indoor unit that feeds back the first response message first may include multiple indoor units (for example, the outdoor unit receives multiple first response messages at the same time), to avoid that the same communication address is used by multiple indoor units, which may cause a statistical error in the number of successfully distributed communication addresses. In some embodiments, the first method may further include the steps of:
(4) and when the indoor unit which firstly feeds back the first response message comprises a plurality of indoor units, judging that the communication address allocation of the current round fails, and starting the communication address allocation of the next round.
In the second mode, the communication address may be assigned by using a roll call assignment policy. That is, each communication address is sent to a corresponding indoor unit, for example, a roll call message carrying the communication address is sent to the corresponding indoor unit, and the number of the successfully distributed communication addresses is counted according to a received instruction fed back by the indoor unit.
In step S101-2, the outdoor unit sets the number of successfully distributed communication addresses as the online number.
In the first scenario, if the multi-split air conditioner 100 has a main controller, the above-mentioned obtaining of the online number of the indoor units in normal communication with the outdoor unit may also be performed by the main controller.
The step of the main controller acquiring the online number of the indoor units in normal communication with the outdoor unit may be: the outdoor unit is controlled by the main controller to distribute communication addresses to the indoor units, and each time the outdoor unit successfully distributes one communication address, a counting message is fed back to the main controller. And the main controller takes the number of the received counting messages as the online number.
In the second scenario, when the multi-split air conditioner 100 is in the operation stage, the communication state between the outdoor unit and the corresponding indoor unit may be checked at regular time to obtain the online number of the indoor units in normal communication with the outdoor unit.
In a second scenario, the obtaining of the online number of the indoor units in normal communication with the outdoor unit may be performed by the outdoor unit.
Optionally, as shown in fig. 4, the step S101 may further include the following steps:
and step S101-3, the outdoor unit polls each indoor unit according to the allocated communication address.
In the embodiment of the invention, the outdoor unit generates the communication test message at regular time and sends the communication test message to the indoor units corresponding to the communication addresses in sequence.
And S101-4, the outdoor unit receives and counts the second response message fed back by the polled indoor unit to serve as the online quantity.
In the embodiment of the invention, the indoor unit which receives the communication test message generates a second response message in response to the communication test message, and feeds back the second response message to the outdoor unit. And the outdoor unit receives and counts the quantity of the obtained second response messages to be used as the online quantity.
In a second scenario, the obtaining of the online number of the indoor units in normal communication with the outdoor unit may be further performed by the main controller.
And the main controller regularly triggers the outdoor unit to poll each indoor unit according to the allocated communication address, and the outdoor unit receives a second response message fed back by the indoor unit and forwards the second response message to the main controller. And the main controller determines the online quantity of the indoor units which normally communicate with the outdoor unit according to the quantity of the received second response messages.
Alternatively, after obtaining the online number, the outdoor unit may display the obtained online number.
And 102, when the number of the on-lines is smaller than a preset value, controlling the indoor unit to execute corresponding actions according to the communication state of the outdoor unit so as to distinguish the indoor units in different communication states with the outdoor unit.
The preset value is a preset value representing the number of actually installed indoor units corresponding to the outdoor unit, and optionally, the preset value can be set. If the number of the actual internal machines is changed, the zero clearing setting is needed (for example, a confirmation key 8s arranged on the outdoor machine is pressed for a long time), the debugging stage is entered again, and the communication address allocation is carried out again.
The actions comprise various types, and different types of actions can enable a user to feel the difference of the working state of the indoor unit. The actions can include controlling the refrigerating lamp on the indoor unit to flicker, and can also include starting a fan and starting refrigeration or heating. The actions can also comprise controlling a display screen of the indoor unit to display different code segments.
In particular, when the operations corresponding to different communication states are configured, if the operation of the type described above has been selected as an operation corresponding to normal communication, the corresponding operation may not be set for communication abnormality. Alternatively, a corresponding action may be set for each type of communication state. For example, if the communication is normal, the refrigerating lamp on the indoor unit is controlled to flash for 3 times and then to be extinguished for 6 seconds; and if the communication is abnormal, the refrigerating lamp on the indoor unit is controlled to be normally on. For another example, if the communication is normal, the refrigerating lamp on the indoor unit is controlled to flash for 3 times and then to be extinguished for 6 seconds; and if the communication is abnormal, the working state of a refrigerating lamp on the indoor unit is not changed.
In some embodiments, the controlling of the indoor unit according to the communication status with the outdoor unit may be performed by the indoor unit and the outdoor unit. As shown in fig. 5, the step S102 may include the following steps:
and step S102-1, the indoor unit with the outdoor unit control communication state being normal executes a first action.
And S102-2, the indoor unit which is abnormal in communication state with the outdoor unit and is not powered off is triggered to execute a second action autonomously.
In some embodiments, the indoor unit also checks the communication status with the outdoor unit periodically. And after judging that the communication state between the indoor unit and the outdoor unit is abnormal, the indoor unit actively executes a second action. The first action and the second action are different, so that the user can distinguish conveniently. Alternatively, the second operation may be performed by a controller of the indoor unit.
And step S102-3, the indoor unit which is abnormal in communication state with the outdoor unit and is powered off does not execute actions.
In some embodiments, the controlling of the indoor unit according to the communication status with the outdoor unit may be performed by the main controller.
Since the multi-split air conditioner 100 is installed in an indoor decoration stage, if an installer leaves the air conditioner without detection after completing unit connection, the installer asks for maintenance when the user finds abnormality when the user stays, and user experience is affected. In order to remind an installer, as shown in fig. 6, the online detection method for the multi-connected air conditioner internal unit further includes:
and step S103, when the online quantity is equal to the preset value and a confirmation instruction triggered by a user is not obtained, the outdoor unit controls the indoor unit to execute a first action.
Optionally, the online detection method for the multi-connected air conditioner indoor unit further includes:
and when the online number is smaller than a preset value, the outdoor unit warns and displays the communication address of the indoor unit which does not feed back the second response message.
In order to execute the corresponding steps in the above embodiments and various possible manners, an implementation manner of the online detection device 200 for the multiple air conditioner internal unit is given below. Further, referring to fig. 7, fig. 7 is a functional block diagram of an online detection device 200 for an indoor unit of a multi-connected air conditioner according to an embodiment of the present invention. It should be noted that the basic principle and the generated technical effects of the online detection device 200 for the multi-connected air conditioner indoor unit provided in the present embodiment are the same as those of the above embodiments, and for the sake of brief description, no part of the present embodiment is mentioned, and reference may be made to the corresponding contents in the above embodiments. This online detection device 200 of multi-connected air conditioner indoor unit includes: an acquisition module 201 and a control module 202.
An obtaining module 201, configured to obtain an online number of the indoor units that normally communicate with the outdoor unit;
and the control module 202 is configured to control the indoor unit to execute a corresponding action according to a communication state of the outdoor unit when the online number is smaller than a preset value, so as to distinguish the indoor units in different communication states with the outdoor unit.
The invention also provides a computer-readable storage medium, on which a computer program is stored, which, when being executed by the processing chip 120, carries out the above-mentioned method.
In summary, the embodiments of the present invention provide an online detection method and an online detection device for an indoor unit of a multi-split air conditioner, and the multi-split air conditioner. The online detection method of the multi-connected air conditioner indoor unit comprises the steps of obtaining the online quantity of the indoor units which normally communicate with the outdoor unit; and when the online number is smaller than a preset value, controlling the indoor unit to execute corresponding actions according to the communication state of the outdoor unit so as to distinguish the indoor units in different communication states with the outdoor unit. Therefore, when an indoor unit which is abnormally communicated with the outdoor unit appears, a user can be quickly helped to discriminate the indoor unit which is out of line, and related personnel can be timely reminded to overhaul.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention.

Claims (10)

1. The online detection method for the multiple air conditioner internal units is characterized by being applied to a multiple air conditioner (100), wherein the multiple air conditioner (100) comprises an outdoor unit and a plurality of indoor units, and the online detection method for the multiple air conditioner internal units comprises the following steps:
acquiring the online quantity of the indoor units which normally communicate with the outdoor unit;
when the number of the on-lines is smaller than a preset value, controlling the indoor unit to execute corresponding actions according to the communication state of the outdoor unit so as to distinguish the indoor units in different communication states with the outdoor unit;
the controlling the indoor unit to execute corresponding actions according to the communication state of the outdoor unit comprises the following steps:
the indoor unit with the normal outdoor unit control communication state executes a first action;
the indoor unit which is abnormal in communication state with the outdoor unit and is not powered off is automatically triggered to execute a second action;
and the indoor unit which is abnormal in communication state with the outdoor unit and has power failure does not execute actions.
2. The on-line detection method for the indoor units of the multi-connected air conditioner as claimed in claim 1, wherein when the multi-connected air conditioner (100) enters a debugging stage, the step of obtaining the on-line number of the indoor units which normally communicate with the outdoor unit comprises the steps of:
the outdoor unit distributes communication addresses to the indoor units;
the outdoor unit takes the number of the communication addresses that have been successfully distributed as the online number.
3. The on-line detection method for the indoor units of the multi-connected air conditioner as claimed in claim 2, wherein the step of distributing the communication addresses to the indoor units by the outdoor unit comprises:
broadcasting a position robbing message carrying one communication address to a plurality of indoor units in each round;
when receiving a first response message fed back by the indoor unit, sending a confirmation message to the indoor unit which firstly feeds back the first response message, and accumulating the number of the successfully distributed communication addresses so as to start the next round of communication address distribution;
and when the first response message fed back by the indoor unit is not received, reading the number of the communication addresses which are successfully distributed.
4. The on-line detection method for indoor units of a multi-connected air conditioner as claimed in claim 3, wherein the step of distributing communication addresses to the indoor units by the outdoor unit further comprises:
and when the indoor unit which firstly feeds back the first response message comprises a plurality of indoor units, judging that the communication address allocation of the current round fails, and starting the communication address allocation of the next round.
5. The on-line detection method for the indoor units of the multi-connected air conditioner as claimed in claim 2, wherein the step of acquiring the on-line number of the indoor units which normally communicate with the outdoor unit when the multi-connected air conditioner (100) is in an operation stage comprises:
the outdoor unit polls each indoor unit according to the distributed communication address;
and the outdoor unit receives and counts second response messages fed back by the polled indoor units to serve as the online quantity.
6. The on-line detection method for the multiple air conditioner indoor units according to claim 1, further comprising the following steps:
and when the online quantity is equal to a preset value and a confirmation instruction triggered by a user is not obtained, the outdoor unit controls the indoor unit to execute the first action.
7. The on-line detection method for the multiple air conditioner indoor units according to claim 5, further comprising the following steps:
and when the online number is smaller than a preset value, the outdoor unit warns and displays the communication address of the indoor unit which does not feed back the second response message.
8. The utility model provides a many online air conditioner indoor unit detection device, its characterized in that is applied to many online air conditioner (100), many online air conditioner (100) include off-premises station and many indoor sets, many online air conditioner indoor unit detection device (200) include:
the acquisition module (201) is used for acquiring the online number of the indoor units which normally communicate with the outdoor unit;
the control module (202) is used for controlling the indoor unit to execute corresponding actions according to the communication state of the outdoor unit when the online quantity is smaller than a preset value, so as to distinguish the indoor units in different communication states with the outdoor unit; the control module (202) is specifically configured to execute a first action by the indoor unit in which the outdoor unit control communication state is normal;
the indoor unit which is abnormal in communication state with the outdoor unit and is not powered off is automatically triggered to execute a second action;
and the indoor unit which is abnormal in communication state with the outdoor unit and has power failure does not execute actions.
9. A multi-split air conditioner comprising an indoor unit and an outdoor unit, wherein each of the indoor unit and the outdoor unit comprises a processing chip (120), and the processing chip (120) can execute machine executable instructions to implement the method of any one of claims 1 to 7.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the method according to any one of claims 1-7.
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