Communication address recovery method of multi-split air conditioner indoor unit, multi-split air conditioner and storage medium

Abstract

The invention discloses a communication address recovery method for indoor units of a multi-split air conditioner, the multi-split air conditioner and a storage medium. The communication address recovery method comprises the steps that an outdoor unit sends a communication address proofreading request to each indoor unit; receiving a communication address responded by each indoor unit based on the proofreading request; and when it is determined that the communication address of the indoor unit is abnormal according to the communication address, a new communication address is allocated according to the abnormal indoor unit. According to the embodiment of the invention, when the communication address of the multi-split indoor unit is abnormal, a new communication address is reconfigured, so that the communication address of the indoor unit is automatically recovered, manual allocation by a user is not needed, the operation process is simplified, and errors are avoided.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a communication address recovery method for a multi-split indoor unit, a multi-split indoor unit and a storage medium. Background Art

[0002] In order to realize the information exchange of cooling and heating control, the multi-split air conditioning system needs to set a unique communication address (that is, the ID code of each machine in the system) for the machines in the whole system to facilitate mutual recognition between the units. If there is no specific address, the whole communication system may experience communication disorder or channel congestion.

[0003] The communication addresses of the multi-split system include automatic addresses and manual addresses. The address verification and allocation performed in the first few minutes after the multi-split system is powered on for the first time is an automatic address. In the related art, the automatic address is generally performed in the first few minutes after the multi-split system is powered on for the first time, and the address will not be automatically allocated later. When the system has some indoor unit addresses that are repeated or some indoor units have no addresses due to some factors, the user can allocate a manual address, which is a manual address. The manual address allocation method is too cumbersome and error-prone for users.

[0004] It should be noted that the above contents are only used to assist in understanding the technical problems solved by the present invention, and do not constitute an admission that the above contents are prior art. Summary of the invention

[0005] The main purpose of the present invention is to provide a communication address recovery method for a multi-split indoor unit, a multi-split unit and a storage medium, aiming to reconfigure a new communication address when the communication address of the multi-split indoor unit is abnormal, so that the communication address of the indoor unit is automatically restored without manual allocation by the user, simplifying the operation process and avoiding errors.

[0006] Based on this, the present invention provides a method for recovering the communication address of a multi-split indoor unit, and the method for recovering the communication address of a multi-split indoor unit comprises the following steps:

[0007] The outdoor unit sends a communication address verification request to each indoor unit;

[0008] receiving a communication address of each indoor unit in response to the calibration request;

[0009] When it is determined according to the communication address that the communication address of an indoor unit is abnormal, a new communication address is allocated according to the abnormal indoor unit.

[0010] Optionally, when it is determined according to the communication address that the communication address of an indoor unit is abnormal, the step of allocating a new communication address according to the abnormal indoor unit includes:

[0011] Determining whether there is an abnormality in the communication address of the indoor unit according to the communication address;

[0012] If so, identify the type of anomaly;

[0013] When the abnormal type is that at least one indoor unit has no communication address, reallocate communication addresses to all indoor units;

[0014] When the abnormality type is that the communication addresses of at least two indoor units are repeated, a target indoor unit is selected from all indoor units with repeated communication addresses, and a new communication address is configured for the target indoor unit.

[0015] Optionally, the step of determining whether there is an abnormal communication address of an indoor unit according to the communication address includes at least one of the following:

[0016] When it is determined that at least one indoor unit does not respond to the communication address according to the communication addresses fed back by the indoor units, it is determined that the communication address of the indoor unit is abnormal;

[0017] When it is determined that at least one indoor unit has no communication address according to the communication addresses fed back by the indoor units, it is determined that the communication address of the indoor unit is abnormal;

[0018] When it is determined based on the communication addresses fed back by the indoor units that different indoor units feed back the same communication address in different cycles, it is determined that the communication address of one indoor unit is abnormal.

[0019] Optionally, before the step of the outdoor unit sending a communication address verification request to each indoor unit, the step further includes:

[0020] After the outdoor unit is powered on, it sends a communication address reset command to all indoor units;

[0021] When receiving a communication address application request, assigning a communication address to the indoor unit corresponding to the application request;

[0022] Return to the step of sending a communication address reset instruction to all indoor units until the communication addresses of all indoor units are allocated;

[0023] Alternatively, the step of allocating a communication address to the indoor unit corresponding to the application request when a communication address application request is received is returned and repeated until the communication addresses of all indoor units are allocated.

[0024] Optionally, the step of allocating a communication address to the indoor unit corresponding to the application request includes:

[0025] The indoor unit corresponding to the application request sends a communication address allocation instruction;

[0026] After receiving the communication address confirmation information, the outdoor unit records the communication address corresponding to the indoor unit.

[0027] The present invention provides a multi-split outdoor unit, which includes a memory, a processor, and a communication address recovery program stored in the memory and executable on the processor. When the communication address recovery program is executed by the processor, the steps of the communication address recovery method for the multi-split indoor unit as described above are implemented.

[0028] The present invention also provides a method for recovering the communication address of a multi-split indoor unit, and the method for recovering the communication address of a multi-split indoor unit comprises the following steps:

[0029] When receiving a calibration request sent by the outdoor unit, responding to the calibration request;

[0030] If a communication address allocation inquiry request sent by the outdoor unit is received, respond to the communication address allocation inquiry request according to the status of the current communication address, the status including having a communication address and not having a communication address; or, if the communication address received from the outdoor unit is the current communication address of the local end, issue a communication address application request;

[0031] When receiving the communication address allocation instruction sent by the outdoor unit, the communication address corresponding to the communication address allocation instruction is updated to the current communication address.

[0032] Optionally, the step of responding to the communication address allocation inquiry request according to the state of the current communication address includes:

[0033] If the status of the communication address is no communication address, issuing an application request for the communication address;

[0034] If the status of the communication address is that there is a communication address, the communication address allocation query request is not responded to.

[0035] Optionally, when receiving the communication address allocation instruction sent by the outdoor unit, the step of updating the communication address corresponding to the communication address allocation instruction to the current communication address includes:

[0036] When receiving the communication address allocation instruction sent by the outdoor unit, feeding back the communication address confirmation information corresponding to the communication address allocation instruction to the outdoor unit;

[0037] When the confirmation information from the outdoor unit is received, the communication address corresponding to the communication address allocation instruction is updated to the current communication address.

[0038] The present invention also provides a multi-split indoor unit, which includes a memory, a processor, and a communication address recovery program stored in the memory and executable on the processor. When the communication address recovery program is executed by the processor, the steps of the communication address recovery method for the multi-split indoor unit as described above are implemented.

[0039] The present invention also provides a multi-split system, which includes a memory, a processor, and a communication address recovery program stored in the memory and executable on the processor. When the communication address recovery program is executed by the processor, the steps of the communication address recovery method for the indoor unit of the multi-split system as described above are implemented.

[0040] The present invention also provides a computer-readable storage medium, which stores a communication address recovery program. When the communication address recovery program is executed by a processor, the steps of the communication address recovery method for the multi-split indoor unit as described above are implemented.

[0041] The communication address recovery method, device, multi-split and readable storage medium of the multi-split indoor unit provided by the present invention sends a communication address verification request to each indoor unit through the outdoor unit, and periodically and automatically monitors whether the communication address of each indoor unit is abnormal. After receiving the verification request, the indoor unit responds to the verification request according to the current communication address situation, and the indoor unit can determine whether the communication address of the indoor unit is abnormal according to the indoor unit response information. If abnormal, a new communication address is automatically allocated according to the abnormal indoor unit. In this way, the indoor unit automatically monitors the communication address abnormality and automatically recovers the communication address of the abnormal indoor unit without manual operation by the user, realizing intelligence, simplifying the operation process, and avoiding errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0043] Figure 1 A schematic diagram of the hardware environment architecture involved in the communication address recovery method of the multi-split indoor unit provided by the present invention;

[0044] Figure 2 A schematic flow chart of a first embodiment of a communication address recovery method for a multi-split indoor unit provided by the present invention;

[0045] Figure 3 A schematic flow chart of a second embodiment of a communication address recovery method for a multi-split indoor unit provided by the present invention;

[0046] Figure 4 A schematic flow chart of a third embodiment of a method for recovering a communication address of a multi-split indoor unit provided by the present invention;

[0047] Figure 5 This is a flow chart of a fourth embodiment of the communication address recovery method for a multi-split indoor unit provided by the present invention.

[0048] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0049] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0050] In order to realize the information exchange of cooling and heating control, the multi-split air conditioning system needs to set a unique communication address (that is, the ID code of each machine in the system) for the machines in the whole system to facilitate mutual recognition between the units. If there is no specific address, the whole communication system may experience communication disorder or channel congestion.

[0051] The communication addresses of the multi-split system include automatic addresses and manual addresses. The address verification and allocation performed in the first few minutes when the multi-split system is powered on for the first time is an automatic address. In the related art, the automatic address is generally performed in the first few minutes when the multi-split system is powered on for the first time, and the address will not be automatically allocated subsequently. When the system has some indoor unit addresses that are repeated or some indoor units have no addresses due to some factors, the user can assign a manual address, which is a manual address. The manual address allocation method is too cumbersome for users and prone to errors. For example, the communication address manually assigned by the user may be repeated with the communication address of other indoor units.

[0052] Based on this, an embodiment of the present invention provides a method for recovering the communication address of a multi-split indoor unit, wherein an outdoor unit sends a communication address verification request to each indoor unit, and periodically and automatically monitors whether the communication address of each indoor unit is abnormal. After receiving the verification request, the indoor unit responds to the verification request according to the current communication address. The indoor unit can determine whether the communication address of the indoor unit is abnormal based on the indoor unit response information. If abnormal, a new communication address is automatically allocated based on the abnormal indoor unit. In this way, the indoor unit automatically monitors the communication address abnormality and automatically recovers the communication address of the abnormal indoor unit without manual operation by the user, thus realizing intelligence, simplifying the operation process, and avoiding errors.

[0053] In order to better understand the technical solutions provided by the embodiments of the present invention, exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0054] As an implementation method, the hardware environment architecture involved in the communication address recovery method of the multi-split indoor unit can be as follows: Figure 1 shown.

[0055] Optionally, the hardware architecture involved in the communication address recovery method of the multi-split indoor unit includes the multi-split or multi-split control device.

[0056] As an implementation, the multi-connection or control device includes: a processor 101, such as a CPU, a memory 102, and a communication bus 103. The communication bus 103 is used to realize the connection and communication between these components. The processor 101 is used to call an application to perform a control operation.

[0057] The memory 102 may be a high-speed RAM memory or a stable memory (non-volatile memory), such as a disk memory.

[0058] It can be understood that, in one embodiment, the communication address recovery program for implementing the multi-connection protection is stored in the memory 102, or in a computer-readable storage medium. When the processor 101 calls the communication address recovery program from the memory 102 or the computer-readable storage medium, the following operations are performed:

[0059] The outdoor unit sends a communication address verification request to each indoor unit;

[0060] receiving a communication address of each indoor unit in response to the calibration request;

[0061] When it is determined according to the communication address that the communication address of an indoor unit is abnormal, a new communication address is allocated according to the abnormal indoor unit.

[0062] Based on the hardware architecture of the above multi-connected or mobile device, the following embodiments of the present invention are proposed.

[0063] First embodiment

[0064] Please refer to Figure 2 The communication address recovery method of the multi-split indoor unit proposed in the embodiment of the present invention comprises the following steps:

[0065] Step S110, the outdoor unit sends a communication address verification request to each indoor unit;

[0066] The multi-split system includes an outdoor unit and multiple indoor units. The outdoor unit and each indoor unit are connected in communication. The outdoor unit and each indoor unit recognize each other through the communication address, thereby achieving directional communication. If the communication address of the indoor unit is abnormal, directional communication to the indoor unit cannot be achieved. Based on this, this embodiment proposes a method for automatically recovering the communication address to avoid the problem that the recovery operation is cumbersome and prone to errors after the communication address is abnormal.

[0067] In a multi-split system, the outdoor unit is the host. In this embodiment, the outdoor unit is configured to allocate and monitor the addresses of the indoor units.

[0068] This embodiment verifies the communication address of each indoor unit in real time or on a periodic basis during the use of the multi-split system, monitors whether the communication address of the indoor unit is abnormal, and automatically allocates a new communication address in the event of an abnormality, thereby realizing automatic recovery of the communication address of the indoor unit.

[0069] The verification request instructs each indoor unit to feed back its own communication address, equipment information, operation information and other information to the outdoor unit. Based on the uniqueness of the communication address of each indoor unit, the outdoor unit can verify whether the communication address of each indoor unit is abnormal based on the information fed back by each indoor unit.

[0070] Step S120, responding to the proofreading request;

[0071] The indoor unit receives the calibration request and responds to the calibration request.

[0072] Wherein, responding to the verification request includes: obtaining a current communication address, and feeding back the current communication address to the outdoor unit; or feeding back information that there is no current communication address to the outdoor unit.

[0073] When the indoor unit feeds back the communication address, it also feeds back the indoor unit equipment information and operation information.

[0074] It should be noted that if the communication address in the indoor unit is normal, each indoor unit can respond to the calibration request. If there is no communication address in the indoor unit, the indoor unit will not respond to the calibration request of the outdoor unit, or respond that there is no communication address information in the outdoor unit.

[0075] Step S130, the outdoor unit receives the communication addresses of the indoor units, and determines whether the communication address of any indoor unit is abnormal according to the communication addresses;

[0076] The outdoor unit receives the communication address fed back by the indoor unit, and then determines whether there is an abnormality in the communication address of the indoor unit based on the communication address fed back by the indoor unit.

[0077] Optionally, based on common abnormal situations of indoor unit communication addresses, the abnormal types of indoor unit communication addresses are divided into at least two types, such as one abnormal type is that the indoor unit has no communication address, the indoor unit has no communication address, and when responding to the outdoor unit's calibration request, it feeds back no address information to the outdoor unit, or the indoor unit does not respond to the outdoor unit's calibration request. Another abnormal type is that the communication addresses of at least two indoor units are repeated. If the communication addresses of the indoor units are repeated, it is possible that at least two indoor units feed back the same communication address. In this case, the outdoor unit can either only receive one communication address or cannot receive the communication address.

[0078] Thus, in some optional embodiments, the outdoor unit determines whether the communication address of the indoor unit is abnormal by:

[0079] When the outdoor unit determines, based on the communication addresses fed back by the indoor units, that at least one indoor unit does not respond to the communication address, it is determined that the communication address of an indoor unit is abnormal, and the indoor unit is the indoor unit with the abnormal communication address.

[0080] Alternatively, when the outdoor unit determines, based on the communication addresses received from the indoor units, that at least one indoor unit has fed back no communication address, it is determined that the communication address of an indoor unit is abnormal, and the indoor unit is the indoor unit with the abnormal communication address.

[0081] Alternatively, when the outdoor unit determines that there are different indoor units feeding back the same communication address in different cycles based on the communication addresses received from the indoor units, it determines that the communication address of an indoor unit is abnormal, and the indoor unit is the indoor unit with the abnormal communication address.

[0082] In this embodiment, before the outdoor unit is operated, the outdoor unit may periodically detect the communication address of the indoor unit and periodically send a proofreading request for the communication address to the indoor unit. The period is the period in which the outdoor unit sends the proofreading request. Since the communication address of the indoor unit is a unique communication address after the initial configuration. If the communication address of the indoor unit is normal, a unique communication address will be fed back in each cycle, and the outdoor unit can determine whether the address of the indoor unit is abnormal based on the correspondence between the unique communication address and the indoor unit. If the communication addresses of the two indoor units are repeated (such as both are address 1), when the two indoor units respond to the proofreading request at the same time, the outdoor unit can sometimes receive the communication address 1 fed back by one indoor unit, sometimes cannot receive the communication address 1 fed back by both indoor units, sometimes receives the communication address 1 fed back by indoor unit A, and sometimes receives the communication address 1 fed back by indoor unit B. In this way, when the communication addresses of at least two indoor units are repeated, although the outdoor units can receive the communication address 1, different indoor units may feedback the same communication address 1 in different cycles (it may be feedback from indoor unit A or indoor unit B). This situation indicates that the communication addresses of indoor unit A and indoor unit B are repeated, so a communication address anomaly occurs.

[0083] Optionally, in this embodiment, the operation information or device information of the indoor unit corresponding to the communication address is judged to determine whether the indoor unit corresponding to the communication address is the same indoor unit. For example, in the previous calibration, the indoor unit corresponding to the communication address 1 is 1.5 horsepower, and in this calibration, the indoor unit corresponding to the communication address 1 is 2 horsepower, which means that they are not the same indoor unit. The judgment process of the operation information is similar to the judgment process of the device information, and the specific reference can be made to the judgment process of the device parameters.

[0084] This embodiment can automatically determine the abnormality of the communication address through the above-mentioned determination method, and can accurately determine the type of the abnormality.

[0085] Step S140: If yes, a new communication address is allocated according to the abnormal indoor unit;

[0086] If not, the process returns to S110 periodically. If after a preset time interval, the process returns to S110 to periodically detect the stability of the indoor unit's communication address.

[0087] In this embodiment, the method of allocating a new communication address according to the abnormal indoor unit includes:

[0088] Directly assign a new communication address based on the abnormal indoor unit without querying the indoor unit.

[0089] Alternatively, it is also possible to determine whether the abnormal indoor unit needs to be reallocated a new communication address by means of a handshake inquiry, and after the abnormal indoor unit initiates a communication address application request, a new communication address is sent to the abnormal indoor unit.

[0090] In this embodiment, the abnormal types of the communication address are different, and the corresponding methods of reallocating new communication addresses can be the same or different. For example, if the abnormal type is that at least one indoor unit has no communication address, or if the abnormal type is that the communication addresses of at least two indoor units are repeated, a new communication address is individually allocated to the abnormal indoor unit. Alternatively, if the abnormal type is that at least one indoor unit has no communication address, a new communication address allocation can be initiated for all indoor units, and the indoor units without communication addresses respond to the address allocation instruction, while the indoor units with communication addresses do not respond to the address allocation instruction. If the abnormal type is that the communication addresses of at least two indoor units are repeated, a new communication address is allocated by name for the indoor units with repeated communication addresses.

[0091] In this embodiment, the outdoor unit sends a communication address verification request to each indoor unit, and periodically and automatically monitors whether the communication address of each indoor unit is abnormal. After receiving the verification request, the indoor unit responds to the verification request according to the current communication address. The indoor unit can determine whether the communication address of the indoor unit is abnormal based on the indoor unit response information. If it is abnormal, a new communication address is automatically allocated based on the abnormal indoor unit. In this way, the indoor unit automatically monitors the abnormal communication address and automatically restores the communication address of the abnormal indoor unit. The outdoor unit is configured for a single indoor unit to avoid repeated configuration of the same communication address. This embodiment does not require manual operation by the user, and is intelligent, simple, and highly accurate.

[0092] Second embodiment

[0093] Please refer to Figure 3 This embodiment is based on the first embodiment. This embodiment takes the abnormal type of the communication address as at least one indoor unit having no communication address as an example to illustrate the communication address recovery process. In this embodiment, step S140 includes:

[0094] Step S141, if yes, issue a communication address allocation inquiry instruction;

[0095] If there is an abnormality in the communication address of the indoor unit, such as detecting that at least one indoor unit has no communication address, the outdoor unit will issue an address allocation query command, such as sending a communication address allocation query command to all indoor units, asking all indoor units whether the communication address needs to be reallocated.

[0096] In this embodiment, it is set that the indoor unit without a communication address responds to the address allocation inquiry instruction, and the indoor unit with a communication address does not respond to the address allocation inquiry instruction.

[0097] In other embodiments, after the outdoor unit determines an indoor unit without a communication address, it may directly send a communication address allocation inquiry instruction to the indoor unit.

[0098] Step S142: the indoor unit without a communication address receives the address allocation inquiry instruction and issues a communication address application request;

[0099] When an indoor unit without a communication address receives an address allocation query command sent by an outdoor unit, it issues a communication address application request. When an indoor unit with a communication address receives an address allocation query command sent by an outdoor unit, it does not respond to the address allocation query command.

[0100] Step S143: When the outdoor unit receives the communication address application request, it sends an address allocation instruction to the indoor unit.

[0101] The address allocation instruction includes a new communication address corresponding to the indoor unit.

[0102] When the outdoor unit receives the communication address application request sent by the indoor unit, it determines a communication address different from other indoor units, uses the communication address as a new communication address, sends it to the indoor unit without a communication address, and reconfigures a new communication address for the indoor unit without a communication address.

[0103] Optionally, in this embodiment, step S140 further includes:

[0104] After the indoor unit receives the address allocation instruction sent by the outdoor unit, it obtains the communication address corresponding to the address allocation instruction and sends the communication address confirmation information to the outdoor unit. After confirmation by the outdoor unit, it sets the communication address as the communication address of this end; the outdoor unit receives the communication address confirmation information of the indoor unit, confirms the new communication address of the indoor unit, and records the communication address corresponding to the indoor unit.

[0105] This embodiment allocates a new communication address to the indoor unit without a communication address, and automatically and timely restores the communication address of the indoor unit without a communication address, thereby realizing intelligence.

[0106] Third embodiment

[0107] Please refer to Figure 4 This embodiment is based on the first embodiment. This embodiment takes the abnormal type of the communication address being the duplication of the communication addresses of at least two indoor units as an example to illustrate the communication address recovery process. In this embodiment, step S140 includes:

[0108] Step S144: if yes, determine the target indoor unit from all indoor units with duplicate communication addresses;

[0109] If there is an abnormality in the communication address of the indoor unit, such as detecting that the communication addresses of at least two indoor units are repeated, the outdoor unit needs to determine the indoor unit that needs to be reallocated a new communication address, so as to allocate a new communication address to the indoor unit in a targeted manner.

[0110] Optionally, in this embodiment, the target indoor unit may be all indoor units with duplicate communication addresses, or some of the indoor units with duplicate communication addresses. For example, if there are two indoor units with duplicate communication addresses, one of them is selected as the target indoor unit; if there are three indoor units with duplicate communication addresses, two of them are selected as the target indoor units to ensure the uniqueness of the communication addresses of all indoor units after the communication addresses are reallocated.

[0111] Step S145, sending a communication address allocation inquiry instruction to the target indoor unit;

[0112] After determining the target indoor unit, the outdoor unit directly names the repeated communication address and sends a communication address allocation query instruction to the target indoor unit corresponding to the communication address. The target indoor unit responds according to the received communication address allocation query instruction.

[0113] Step S146, the target indoor unit receives the communication address allocation inquiry instruction and issues a communication address application request;

[0114] Step S147: When the outdoor unit receives the communication address application request, it sends an address allocation instruction to the target indoor unit.

[0115] The address allocation instruction includes a new communication address corresponding to the target indoor unit.

[0116] When the outdoor unit receives the communication address application request sent by the target indoor unit, it determines a communication address different from other indoor units, takes the communication address as a new communication address, sends it to the target indoor unit, and reconfigures a new communication address for the target indoor unit.

[0117] Optionally, in this embodiment, step S140 further includes:

[0118] After the target indoor unit receives the address allocation instruction sent by the outdoor unit, it obtains the communication address corresponding to the address allocation instruction and sends the communication address confirmation information to the outdoor unit. After confirmation by the outdoor unit, it sets the communication address as the communication address of this end. The outdoor unit receives the communication address confirmation information of the target indoor unit, confirms the new communication address of the target indoor unit, and records the communication address corresponding to the target indoor unit.

[0119] In this embodiment, a new communication address is allocated to the indoor unit with duplicate communication addresses, and the communication address of the indoor unit is automatically adjusted in time to avoid duplication of address information, thereby achieving intelligence.

[0120] Fourth embodiment

[0121] Please refer to Figure 5Based on all the above embodiments, this embodiment proposes a process in which the outdoor unit configures the communication address of the indoor unit when the multi-split system is powered on for the first time. In this embodiment, before the outdoor unit sends a communication address verification request to each indoor unit, it also includes:

[0122] Step S150, after the outdoor unit is powered on, a communication address reset instruction is sent to all indoor units;

[0123] In an optional embodiment, the communication address of the indoor unit is allocated only when the outdoor unit is powered on for the first time.

[0124] Alternatively, in other embodiments, the communication address of the indoor unit may be allocated when the outdoor unit is powered on according to requirements.

[0125] In this embodiment, the outdoor unit allocates the communication address to the indoor unit through communication technology interaction. For example, the outdoor unit sends a communication address reset instruction to all indoor units, and the communication address reset instruction instructs the indoor unit to restore the address to the communication address corresponding to the communication address reset instruction. For example, the outdoor unit sends a 1# communication address to the indoor unit, and the 1# communication address is allocated.

[0126] Step S160, after receiving the communication address reset instruction, the indoor unit sends an application request for the communication address to the outdoor unit;

[0127] All indoor units can receive the communication address reset command. When the indoor unit receives the communication address reset command, it can set the current communication address of the local end to the communication address corresponding to the communication address reset command (such as 1# communication address). Then send an application request for the communication address to the outdoor unit, requesting that 1# communication address be allocated to the local end.

[0128] Step S170, when the outdoor unit receives the application request, it allocates a communication address to the indoor unit corresponding to the application request;

[0129] In this embodiment, in order to ensure the correctness of communication and the uniqueness of address allocation, the indoor unit performs bus mediation by mediation, so only one indoor unit successfully sends the application request to the outdoor unit, and the outdoor unit can only receive the application infringement feedback from one indoor unit each time it instructs the indoor unit to reset the communication address. There is a delay in the communication between each indoor unit and the outdoor unit, so the indoor unit with a short communication time can give priority to sending the application request to the outdoor unit.

[0130] When the outdoor unit receives the application request, it sends the communication address allocation instruction corresponding to the communication address to be currently allocated to the indoor unit. The indoor unit is the indoor unit corresponding to the application request, and the communication address allocation instruction can be fed back to the indoor unit through the communication protocol carried by the application request (such as allocating communication address 1# to the indoor unit corresponding to the application request).

[0131] Optionally, step S170 includes: (i) when the outdoor unit receives the application request, sending a communication address allocation instruction to the indoor unit corresponding to the application request;

[0132] (2) the indoor unit receives the communication address allocation instruction and feeds back communication address confirmation information corresponding to the communication address allocation instruction to the outdoor unit;

[0133] After receiving the communication address allocation instruction, the indoor unit feeds back the communication address confirmation information to the outdoor unit, asking the outdoor unit to confirm whether to allocate the communication address to the indoor unit. If yes, the communication address is saved as the communication address of the local end.

[0134] (III) After receiving the communication address confirmation information, the outdoor unit records the communication address corresponding to the indoor unit.

[0135] Through the above method, the communication address allocation of an indoor unit is completed.

[0136] In an optional embodiment, the multi-split system includes multiple indoor units, and the outdoor unit can only respond to the application request for the communication address of one indoor unit at a time. Therefore, after the communication address of one indoor unit is allocated, steps S150 to S170 are repeated to complete the configuration of the communication addresses of all indoor units.

[0137] For example: the outdoor unit sends a reset command of communication address 1# to all indoor units, and all indoor units respond to the reset command and request that communication address 1# be assigned to themselves. When the outdoor unit receives the application request from indoor unit A, it assigns communication address 1# to indoor unit A. Then it sends a reset command of communication address 2# to all indoor units without communication addresses (indoor units that have not yet been assigned communication addresses), and the indoor units without communication addresses respond to the reset command and request that communication address 2# be assigned to themselves. When the outdoor unit receives the application request from indoor unit B, it assigns communication address 2# to indoor unit B. Then it sends a reset command of communication address 3# to all indoor units without communication addresses, and the indoor units without communication addresses respond to the reset command and request that communication address 3# be assigned to themselves. When the outdoor unit receives the application request from indoor unit C, it assigns communication address 3# to indoor unit C. The assignment is performed in sequence until the communication addresses of all indoor units are assigned, and the communication address assignment is completed.

[0138] In another optional embodiment, the multi-split system includes multiple indoor units, and the outdoor unit can only respond to the communication address application request of one indoor unit at a time. When the outdoor unit assigns a communication address to a certain indoor unit, the outdoor unit will not respond to the communication address application requests sent by other indoor units, and will not receive the communication address allocation instructions sent by the outdoor unit.

[0139] In this embodiment, after the communication address of one indoor unit is allocated, step S170 is repeated to complete the configuration of the communication addresses of all indoor units.

[0140] Compared with the above-mentioned embodiments, this embodiment can reduce the interaction process between the outdoor unit and the indoor unit and improve the allocation efficiency.

[0141] Optionally, in this embodiment, it is achieved in the following way: after the indoor unit receives the communication address reset instruction and sends the application request for the communication address to the outdoor unit, if no communication address allocation instruction is received from the outdoor unit, the communication address application request is continuously sent; after the outdoor unit completes the configuration of the communication address of an indoor unit, it will continue to send the next communication address to other indoor units based on the communication address application requests continuously sent by other indoor units.

[0142] For example: the outdoor unit sends a reset command of communication address 1# to all indoor units. All indoor units respond to the reset command and request that communication address 1# be assigned to themselves. When the outdoor unit receives the application request from indoor unit A, it assigns communication address 1# to indoor unit A. After the outdoor unit sends communication address 1# to indoor unit A, it will receive communication address application requests continuously sent by other indoor units. If the outdoor unit receives a communication address application request sent by indoor unit B at this time, the outdoor unit will assign other communication addresses except communication address 1# to indoor unit B in order or obtain them (such as assigning communication address 2# to indoor unit B). The assignment is carried out in sequence until the communication addresses of all indoor units are assigned, and the communication address assignment is completed.

[0143] In this embodiment, when the outdoor unit allocates addresses to the indoor units, the allocation efficiency is high and the degree of intelligence is high.

[0144] The present invention also provides a multi-split system, which includes a memory, a processor, and a communication address recovery program stored in the memory and executable on the processor. When the communication address recovery program is executed by the processor, the steps of the communication address recovery method for the indoor unit of the multi-split system as described above are implemented.

[0145] The present invention also provides a computer-readable storage medium, which stores a communication address recovery program. When the communication address recovery program is executed by a processor, the steps of the communication address recovery method for the multi-split indoor unit as described above are implemented.

[0146] It should be noted that the above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A method for recovering the communication address of a multi-split indoor unit, characterized in that: The communication address recovery method of the multi-split indoor unit comprises the following steps: The outdoor unit sends a communication address verification request to each indoor unit; receiving a communication address of each indoor unit in response to the calibration request; When it is determined according to the communication address that the communication address of an indoor unit is abnormal, a new communication address is allocated according to the abnormal indoor unit.

2. The communication address recovery method of a multi-split indoor unit according to claim 1, characterized in that: When it is determined according to the communication address that there is an abnormal communication address of the indoor unit, the step of allocating a new communication address according to the abnormal indoor unit comprises: Determining whether there is an abnormality in the communication address of the indoor unit according to the communication address; If so, identify the type of anomaly; When the abnormal type is that at least one indoor unit has no communication address, reallocate communication addresses to all indoor units; When the abnormality type is that the communication addresses of at least two indoor units are repeated, a target indoor unit is selected from all indoor units with repeated communication addresses, and a new communication address is configured for the target indoor unit.

3. The communication address recovery method of a multi-split indoor unit according to claim 1, characterized in that: The step of judging whether there is an abnormal communication address of the indoor unit according to the communication address comprises at least one of the following: When it is determined that at least one indoor unit does not respond to the communication address according to the communication addresses fed back by the indoor units, it is determined that the communication address of the indoor unit is abnormal; When it is determined that at least one indoor unit has no communication address according to the communication addresses fed back by the indoor units, it is determined that the communication address of the indoor unit is abnormal; When it is determined based on the communication addresses fed back by the indoor units that different indoor units feed back the same communication address in different cycles, it is determined that the communication address of one indoor unit is abnormal.

4. The communication address recovery method of a multi-split indoor unit according to claim 1, characterized in that: Before the step of the outdoor unit sending a communication address verification request to each indoor unit, the method further includes: After the outdoor unit is powered on, it sends a communication address reset command to all indoor units; When receiving a communication address application request, assigning a communication address to the indoor unit corresponding to the application request; Return to the step of sending a communication address reset instruction to all indoor units until the communication addresses of all indoor units are allocated; Alternatively, the step of allocating a communication address to the indoor unit corresponding to the application request when a communication address application request is received is returned and repeated until the communication addresses of all indoor units are allocated.

5. The communication address recovery method of a multi-split indoor unit according to claim 4, characterized in that: The step of allocating a communication address to the indoor unit corresponding to the application request comprises: The indoor unit corresponding to the application request sends a communication address allocation instruction; After receiving the communication address confirmation information, the outdoor unit records the communication address corresponding to the indoor unit.

6. A method for recovering the communication address of a multi-split indoor unit, characterized in that: The communication address recovery method of the multi-split indoor unit comprises the following steps: When receiving a calibration request sent by the outdoor unit, responding to the calibration request; If a communication address allocation inquiry request sent by an outdoor unit is received, respond to the communication address allocation inquiry request according to the status of the current communication address, wherein the status includes having a communication address and not having a communication address; or, if the communication address received from the outdoor unit is the current communication address of the local end, issue a communication address application request; When receiving the communication address allocation instruction sent by the outdoor unit, the communication address corresponding to the communication address allocation instruction is updated to the current communication address.

7. The communication address recovery method of a multi-split indoor unit according to claim 6, characterized in that: The step of responding to the communication address allocation inquiry request according to the state of the current communication address comprises: If the status of the communication address is no communication address, issuing an application request for the communication address; If the status of the communication address is that there is a communication address, the communication address allocation query request is not responded to.

8. The communication address recovery method of a multi-split indoor unit according to claim 6, characterized in that: When receiving the communication address allocation instruction sent by the outdoor unit, the step of updating the communication address corresponding to the communication address allocation instruction to the current communication address includes: When receiving the communication address allocation instruction sent by the outdoor unit, feeding back the communication address confirmation information corresponding to the communication address allocation instruction to the outdoor unit; When the confirmation information from the outdoor unit is received, the communication address corresponding to the communication address allocation instruction is updated to the current communication address.

9. A multi-link system, characterized in that: The multi-split system includes a memory, a processor, and a communication address recovery program stored in the memory and executable on the processor. When the communication address recovery program is executed by the processor, the steps of the communication address recovery method for the multi-split indoor unit as described in any one of claims 1 to 8 are implemented.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a communication address recovery program, and when the communication address recovery program is executed by a processor, the steps of the communication address recovery method for a multi-split indoor unit as described in any one of claims 1 to 8 are implemented.

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