CN107707684B - Indoor unit address allocation method, switching device and computer readable storage medium - Google Patents
Indoor unit address allocation method, switching device and computer readable storage medium Download PDFInfo
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- CN107707684B CN107707684B CN201710800598.6A CN201710800598A CN107707684B CN 107707684 B CN107707684 B CN 107707684B CN 201710800598 A CN201710800598 A CN 201710800598A CN 107707684 B CN107707684 B CN 107707684B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/50—Address allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/50—Address allocation
- H04L61/5046—Resolving address allocation conflicts; Testing of addresses
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/50—Address allocation
- H04L61/5069—Address allocation for group communication, multicast communication or broadcast communication
Abstract
The invention discloses an indoor unit address allocation method, which comprises the following steps: when receiving an address allocation instruction sent by an outdoor unit, the switching device sends broadcast information comprising a virtual address generation instruction; when the time interval after the broadcast information is sent reaches a preset time interval, respectively performing polling operation on each group of indoor unit systems based on a preset virtual address; and when response information corresponding to the virtual address of the current polling is received, sending the address to be allocated to the indoor unit generating the virtual address of the current polling based on the virtual address. The invention also discloses a switching device and a computer readable storage medium. The invention realizes the automatic allocation of the indoor machine addresses in the heat recovery multi-split air-conditioning system, and can avoid allocating the same addresses for different indoor machines by polling virtual addresses, thereby avoiding errors in the address allocation process and improving the address allocation efficiency of the indoor machines.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an indoor unit address allocation method, a switching device and a computer readable storage medium.
Background
At present, a switching device is usually added between an indoor unit and an outdoor unit of a heat recovery multi-split air conditioning system to improve the heat recovery efficiency. The switching device is connected with a plurality of groups of indoor unit systems, and each group of indoor unit system comprises a plurality of indoor units. The outdoor host can independently control and adjust each indoor unit, and can meet the requirements of different indoor units on different loads, so that in order to allow the outdoor host to manage each indoor unit, different addresses must be allocated to each indoor unit in the multi-split system, so that the outdoor host can conveniently identify and distinguish each indoor unit.
When the addresses of the indoor units are distributed, the original multi-split system sends address distribution instructions to the indoor units by the outdoor units, and the indoor units carry out unified addressing according to the address distribution instructions. However, in the heat recovery multi-split air conditioning system with the switching device, if the above method is adopted, the problem of the address overlapping allocation of the indoor units among the indoor unit systems in each group may be caused, and the heat recovery multi-split air conditioning system may not operate normally. Therefore, the allocation of the indoor unit addresses in the heat recovery multi-split air conditioning system is mainly realized by manual operation.
However, the method for realizing address allocation of the indoor units by manual operation is not only tedious in operation and labor-consuming, but also easy to make mistakes and low in efficiency because an operator can allocate addresses to the indoor units only according to own experience.
Disclosure of Invention
The invention provides an indoor unit address allocation method, a switching device and a computer readable storage medium, and aims to solve the technical problems of complicated manual operation, high error probability and low efficiency caused by the fact that the existing heat recovery multi-split air-conditioning system allocates indoor unit addresses manually.
In order to achieve the above object, the present invention provides an indoor unit address allocation method, which is applied to a heat recovery multi-split air conditioning system provided with an outdoor unit and indoor units, wherein a switching device is arranged between the outdoor unit and the indoor units, the switching device is in butt joint with a plurality of groups of indoor unit systems, at least two groups of the plurality of groups of indoor unit systems include a plurality of indoor units, and the indoor unit address allocation method includes the following steps:
when receiving an address allocation instruction sent by an outdoor unit, the switching device sends broadcast information comprising a virtual address generation instruction, wherein when receiving the broadcast information, the indoor unit which is not allocated with an address generates a virtual address based on the virtual address generation instruction, and the virtual address generated by the indoor unit which is not allocated with an address is in the range of a preset virtual address;
when the time interval after the broadcast information is sent reaches a preset time interval, performing polling operation on each group of indoor unit systems respectively based on the preset virtual address so as to allow the indoor units without the allocated addresses to feed back response information;
when response information corresponding to the currently polled virtual address is received, sending the address to be allocated to the indoor unit generating the currently polled virtual address based on the virtual address, so that the indoor unit generating the currently polled virtual address can solidify the address to be allocated, and feeding back address allocation success information when the solidification is completed;
and when the address allocation success information is received, continuously executing the step of respectively carrying out polling operation on each group of indoor unit systems based on the preset virtual address.
Preferably, when receiving response information corresponding to the virtual address of the current polling, the step of sending the address to be allocated to the indoor unit generating the virtual address of the current polling based on the virtual address includes:
when response information corresponding to the virtual address of the current polling is received, acquiring identification information of an indoor unit system corresponding to the response information;
determining addresses to be allocated in unallocated addresses in the address field corresponding to the identification information according to a preset rule;
and sending the address to be allocated to the indoor unit generating the current polling virtual address based on the virtual address.
Preferably, when the address assignment success information is received, the step of continuing to perform the polling operation on each group of indoor unit systems based on the preset virtual address includes:
updating the unallocated address based on the address to be allocated when the address allocation success information is received;
and continuing to perform the step of performing polling operation on each group of indoor unit systems respectively based on the preset virtual address.
Preferably, the step of transmitting the broadcast information including the virtual address generation instruction by the switching device upon receiving the address allocation instruction transmitted by the outdoor unit includes:
when receiving an address allocation instruction sent by an outdoor unit, the switching device sends broadcast information comprising a conflict information generation instruction and a virtual address generation instruction, wherein when receiving the broadcast information, an indoor unit which is not allocated with an address generates conflict information based on the conflict information generation instruction, and generates a corresponding virtual address based on the virtual address generation instruction and the conflict information;
when response information corresponding to the currently polled virtual address is received, the step of sending the address to be allocated to the indoor unit generating the virtual address based on the virtual address comprises the following steps:
when response information corresponding to the virtual address of the current polling is received, determining whether an indoor unit with conflict information identical to the conflict information in the currently received response information exists in the currently polled indoor units in the indoor unit system corresponding to the response information;
and when the indoor units with the conflict information identical to the conflict information in the currently received response information do not exist in the currently polled indoor units, sending the address to be allocated to the indoor unit generating the currently polled virtual address based on the virtual address.
Preferably, after the step of determining whether there is an indoor unit whose collision information is the same as the collision information in the response information in the currently polled indoor units in the indoor unit system corresponding to the response information when receiving the response information corresponding to the currently polled virtual address, the method further includes:
when the indoor units with conflict information identical to the conflict information in the currently received response information exist in the currently polled indoor units, polling operation is respectively carried out on each group of indoor unit systems based on the virtual address which is not polled currently in the preset virtual addresses.
Preferably, after the step of performing polling operation on each group of indoor unit systems based on the virtual address not polled currently in the preset virtual addresses, the indoor unit address allocation method further includes:
and when the polling of the virtual address which is not polled currently in the preset virtual address is finished, continuously executing the step of sending the broadcast information comprising the conflict information generation instruction and the virtual address generation instruction.
Preferably, when receiving response information corresponding to the virtual address of the current polling, the step of sending the address to be allocated to the indoor unit generating the virtual address of the current polling based on the virtual address includes:
when response information corresponding to the virtual address of the current polling is received, the address to be allocated and conflict information in the response information are sent to the indoor unit generating the virtual address of the current polling based on the virtual address, wherein when the address to be allocated and the conflict information are received, the indoor unit generating the virtual address of the current polling determines whether the received conflict information is consistent with the conflict information generated based on the conflict information generation instruction, when the received conflict information is consistent with the conflict information generated based on the conflict information generation instruction, the address to be allocated is solidified, and address allocation success information is fed back when the solidification is completed.
Preferably, the step of transmitting the broadcast information including the virtual address generation instruction by the switching device upon receiving the address allocation instruction transmitted by the outdoor unit includes:
when an address allocation instruction sent by an outdoor unit is received, sending broadcast information including a heartbeat instruction, wherein when the address allocated indoor unit in each group of indoor unit systems receives the broadcast information of the heartbeat instruction, the identification information and the address of the indoor unit system to which the address allocated indoor unit belongs are fed back;
when the identification information and the address are received, the unallocated address corresponding to each group of indoor unit systems is determined respectively based on the identification information and the address
Broadcast information including a virtual address generation instruction is transmitted.
In addition, to achieve the above object, the present invention further provides a switching device applied to a heat recovery multi-split air conditioning system including an outdoor unit and indoor units, wherein the switching device is disposed between the outdoor unit and the indoor units, the switching device is connected to a plurality of indoor unit systems, at least two of the indoor unit systems include a plurality of indoor units, and the switching device includes:
an indoor unit address allocation program configured to implement the steps of any of the indoor unit address allocation methods described above.
In order to achieve the above object, the present invention further provides a computer-readable storage medium having an indoor unit address allocation program stored thereon, wherein the indoor unit address allocation program, when executed, implements the steps of the indoor unit address allocation method according to any one of the above aspects.
When receiving an address allocation instruction sent by an outdoor unit, the switching device sends broadcast information comprising a virtual address generation instruction, wherein when receiving the broadcast information, the indoor unit without the address allocation generates a virtual address based on the virtual address generation instruction, then when a time interval after sending the broadcast information reaches a preset time interval, polling operation is respectively carried out on each group of indoor unit systems based on the preset virtual address so as to generate the indoor unit feedback response information of the current polling virtual address, then when receiving the response information corresponding to the current polling virtual address, the address to be allocated is sent to the indoor unit generating the current polling virtual address based on the virtual address, so that the indoor unit generating the current polling virtual address can solidify the address to be allocated, and when the solidification is finished, the address allocation success information is fed back, and then when receiving the address allocation success information, and continuously executing the step of respectively performing polling operation on each group of indoor unit systems based on the preset virtual address, so that the automatic allocation of the indoor unit addresses in the heat recovery multi-split air-conditioning system is realized, the same addresses can be prevented from being allocated to different indoor units in a polling virtual address mode, errors in the address allocation process are avoided, and the address allocation efficiency of the indoor units is improved.
Drawings
Fig. 1 is a schematic flow chart illustrating a method for allocating addresses to indoor units according to a first embodiment of the present invention;
fig. 2 is a schematic view of a detailed flow of sending an address to be allocated to an indoor unit generating a currently polled virtual address based on a virtual address when receiving response information corresponding to the currently polled virtual address in the second embodiment of the address allocation method for the indoor unit according to the present invention;
fig. 3 is a detailed flowchart illustrating the step of continuously performing polling operations on each group of indoor unit systems based on the preset virtual address when the address assignment success information is received in the third embodiment of the indoor unit address assignment method according to the present invention;
FIG. 4 is a flowchart illustrating a fourth embodiment of an address allocation method for indoor units according to the present invention;
fig. 5 is a detailed flowchart of the step of sending the broadcast information including the virtual address generation instruction by the switching device when receiving the address allocation instruction sent by the outdoor unit in the fifth embodiment of the address allocation method for the indoor unit according to the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention provides an indoor unit address allocation method. Referring to fig. 1, fig. 1 is a flowchart illustrating an address allocation method for an indoor unit according to a first embodiment of the present invention.
In this embodiment, the indoor unit address allocation method is applied to a heat recovery multi-split air conditioning system having an outdoor unit and indoor units, wherein a switching device is disposed between the outdoor unit and the indoor units, the switching device is connected to a plurality of groups of indoor unit systems, and at least two groups of the plurality of groups of indoor unit systems include a plurality of indoor units.
The indoor unit address allocation method comprises the following steps:
step S10, when receiving an allocation instruction of an indoor unit address sent by an outdoor unit, the switching device sends broadcast information including a virtual address generation instruction, wherein when receiving the broadcast information, the indoor unit without the address generates a virtual address based on the virtual address generation instruction, and the virtual address generated by the indoor unit without the address is within a preset virtual address range;
for example, if the heat recovery multi-split air conditioning system includes 50 indoor units, the preset virtual address should include more than 50 virtual addresses, for example, 100 virtual addresses, so as to avoid the occurrence of the same virtual address in the virtual addresses generated by the indoor units without address allocation based on the virtual address generation instruction as much as possible. When receiving an address allocation instruction sent by an outdoor unit, the switching device firstly determines the indoor unit with the current allocated address and acquires the address corresponding to the indoor unit with the current allocated address. Specifically, when receiving the address assignment instruction, the switching device sends a heartbeat instruction in a manner of broadcast information, and when receiving the heartbeat instruction, the indoor unit with the assigned address feeds back the address of the indoor unit to the switching device, so that the switching device determines the indoor unit with the current assigned address according to the address fed back by the indoor unit. The system is powered on after the heat recovery multi-split air conditioning system is assembled, a protocol command for automatically distributing the addresses of the indoor units, namely an address distribution command, can be triggered by the automatic indoor unit address distribution function, and the outdoor unit sends the distribution command to the switching device when receiving the address distribution command.
In this embodiment, the switching device transmits broadcast information including a virtual address generation command when receiving an address assignment command transmitted from the outdoor unit, and the indoor unit to which an address is not assigned generates a virtual address based on the received virtual address generation command when receiving the broadcast information. The virtual address is an address used by the indoor unit for temporarily communicating with the switching device, and the value of the virtual address is out of the range of the real address allocated by the switching device, so as to avoid causing address conflict of the indoor unit, for example, when 64 indoor units are included in all indoor unit systems corresponding to the switching device, the value of the virtual address may be set to be a value greater than 64.
In one embodiment, in order to avoid the existence of the same virtual address in the virtual addresses generated by the indoor units without addresses, the broadcast information further comprises a conflict information generation instruction, and when the broadcast information is received, the indoor units without addresses generate conflict information based on the conflict information generation instruction, and then generate corresponding virtual addresses based on the virtual address generation instruction and the conflict information, so that the probability that the virtual addresses generated by the indoor units without addresses are the same is reduced, and the addresses of the indoor units are smoothly allocated. The collision information is a random number which is generated by the indoor unit randomly according to a preset algorithm and is equivalent to the physical ID, and in order to avoid that the collision information generated by the indoor units which are not allocated with addresses is the same, the number of bits of the random number, i.e. the collision information, can be increased, for example, the random number can be set to 9 bits, and the like.
Step S20, when the time interval after the broadcast information is sent reaches the preset time interval, polling operation is respectively carried out on each group of indoor unit systems based on the preset virtual address so as to generate the indoor unit feedback response information of the current polling virtual address;
in this embodiment, when the time interval after the broadcast information is sent reaches the preset time interval, the switching device performs polling operation on each group of indoor unit systems based on a preset virtual address, that is, the switching device simultaneously polls all the indoor unit systems in butt joint with the switching device, and in a certain group of indoor unit systems, when the currently polled virtual address is the same as a virtual address generated by an indoor unit of an unassigned address in the heat recovery multi-split air conditioning system, the indoor unit generating the currently polled virtual address feeds back response information, so that each group of indoor unit systems are independent from each other, and the situation that the addresses assigned to the indoor units of each group of indoor unit systems are duplicated can be avoided, wherein the response information includes identification information of the indoor unit of the unassigned address, identification information of the indoor unit system to which the indoor unit belongs, and the virtual address.
Step S30, when response information corresponding to the virtual address of the current polling is received, the address to be allocated is sent to the indoor unit generating the virtual address of the current polling based on the virtual address, so that the indoor unit generating the virtual address of the current polling can solidify the address to be allocated, and address allocation success information is fed back when the solidification is completed;
in this embodiment, when receiving response information corresponding to a virtual address of a current poll, the switching device determines an address to be allocated according to the response information, and sends the address to be allocated to the indoor unit generating the virtual address of the current poll based on the virtual address, and when receiving the address to be allocated, the indoor unit generating the virtual address of the current poll solidifies the address to be allocated, and feeds back address allocation success information when solidification is completed.
Specifically, the switching device obtains identification information of an indoor unit system corresponding to the information to be responded, that is, identification information of an indoor unit system to which the indoor unit feeding back the response information belongs, obtains an unallocated address corresponding to the identification information, that is, an unallocated address corresponding to the indoor unit system to which the indoor unit of the response information belongs, and determines the address to be allocated according to the unallocated address, wherein a first address or a last address in the unallocated addresses may be selected as the address to be allocated in sequence, or any one of the unallocated addresses is selected as the address to be allocated.
And step S40, when the address allocation success information is received, continuing to execute the step of sequentially polling the preset virtual addresses according to the sequence of each group of indoor unit systems.
In this embodiment, when the address assignment success information is received, the switching device continues to sequentially poll the preset virtual addresses according to the sequence of each group of indoor unit systems, that is, continues to poll virtual addresses that are not currently polled in the preset virtual addresses, and assigns addresses to the indoor units to which addresses are not assigned.
In this embodiment, after all the virtual addresses are polled, to avoid that there are indoor units with unassigned addresses in the current heat recovery multi-split air-conditioning system, the process of this embodiment may be executed repeatedly until there are no indoor units with unassigned addresses, so as to ensure that addresses can be assigned to all the indoor units in the heat recovery multi-split air-conditioning system.
In the method for allocating address of indoor unit in this embodiment, when an address allocation command sent by an outdoor unit is received, the switching device sends broadcast information including a virtual address generation command, wherein when the broadcast information is received, an indoor unit without address allocation generates a virtual address based on the virtual address generation command, then when a time interval after the broadcast information is sent reaches a preset time interval, polling operation is performed on each group of indoor unit systems based on the preset virtual address respectively, so as to generate feedback response information of the indoor unit polling the virtual address currently, and then when response information corresponding to the virtual address polled currently is received, an address to be allocated is sent to the indoor unit generating the virtual address currently polled based on the virtual address, so that the indoor unit generating the virtual address currently polls solidifies the address to be allocated, and when solidification is completed, address allocation success information is fed back, and then when the address allocation success information is received, continuously executing the step of respectively performing polling operation on each group of indoor unit systems based on the preset virtual address, realizing automatic allocation of the indoor unit addresses in the heat recovery multi-split air conditioning system, and avoiding allocating the same address for different indoor units in a polling virtual address mode, thereby avoiding errors in the address allocation process and improving the address allocation efficiency of the indoor units. Meanwhile, addresses can be allocated to all indoor units in the heat recovery multi-split air conditioning system by executing the process of the embodiment in a circulating manner.
Based on the first embodiment, a second embodiment of the indoor unit address allocation method according to the present invention is provided, and referring to fig. 2, in this embodiment, step S30 includes:
step S31, when response information corresponding to the virtual address of the current polling is received, acquiring identification information of the indoor unit system corresponding to the response information;
in this embodiment, the response information may include identification information of the indoor unit system to which the indoor unit without the address is assigned, and of course, the response information may also include identification information of the indoor unit without the address and information such as the virtual address. When receiving the response information corresponding to the virtual address of the current polling, the switching device may obtain the identification information of the corresponding indoor unit system by analyzing the response information.
Step S32, determining addresses to be allocated in the unallocated addresses of the address field corresponding to the identification information according to a preset rule;
in this embodiment, a distributable address segment may be respectively set for each group of indoor unit systems, the address segment of each group of indoor unit systems includes a plurality of distributable addresses, the switching device may determine an address corresponding to an indoor unit to which an address has been distributed in each group of indoor unit systems by sending a heartbeat instruction to each group of indoor unit systems, further determine an unallocated address in the address segment of each indoor unit system, and determine an address to be distributed in an unallocated address of the address segment corresponding to the identification information according to a preset rule, where a first address or a last address in the unallocated address may be sequentially selected as the address to be distributed, or any one address in the unallocated address may be selected as the address to be distributed.
And step S33, sending the address to be allocated to the indoor unit generating the current polling virtual address based on the virtual address.
In the method for allocating an address of an indoor unit, when response information corresponding to a currently polled virtual address is received, identification information of an indoor unit system corresponding to the response information is acquired, and then an address to be allocated is determined in an unallocated address in an address field corresponding to the identification information according to a preset rule; finally, the address to be allocated is sent to the indoor unit which generates the current polling virtual address based on the virtual address; the address to be allocated can be accurately determined according to the conference information, errors in the address allocation process are further avoided, and the allocation efficiency of the address of the indoor unit is improved.
Based on the second embodiment, a third embodiment of the indoor unit address allocation method according to the present invention is provided, and referring to fig. 3, in this embodiment, step S40 includes:
step S41, when the address allocation success information is received, updating the unallocated address based on the to-be-allocated address;
in this embodiment, when receiving the address assignment success information, the switching device updates the unassigned address based on the to-be-assigned address, and specifically deletes the to-be-assigned address in the unassigned address.
And step S42, continuing to perform the polling operation on each group of indoor unit systems based on the preset virtual address.
In the indoor unit address allocation method provided by this embodiment, when the address allocation success information is received, the unassigned address is updated based on the address to be allocated, and then the step of performing polling operation on each group of indoor unit systems based on the preset virtual address is continuously performed, so that the same address can be prevented from being allocated to different indoor units, an error in the address allocation process is avoided, and the address allocation efficiency of the indoor units is further improved.
Based on the first embodiment, a fourth embodiment of the address allocation method for the indoor unit according to the present invention is provided, and referring to fig. 4, in this embodiment, step S10 includes: when receiving an address allocation instruction sent by an outdoor unit, the switching device sends broadcast information comprising a conflict information generation instruction and a virtual address generation instruction, wherein when receiving the broadcast information, an indoor unit which is not allocated with an address generates conflict information based on the conflict information generation instruction, and generates a corresponding virtual address based on the virtual address generation instruction and the conflict information.
The collision information is a random number which is generated by the indoor unit randomly according to a preset algorithm and is equivalent to the physical ID, and in order to avoid that the collision information generated by the indoor units which are not allocated with addresses is the same, the number of bits of the random number, i.e. the collision information, can be increased, for example, the random number can be set to 9 bits, and the like. The virtual address is an address used by the indoor unit for temporarily communicating with the switching device, and the value of the virtual address is out of the range of the real address allocated by the switching device, so as to avoid causing address conflict of the indoor unit, for example, when 64 indoor units are included in all indoor unit systems corresponding to the switching device, the value of the virtual address may be set to be a value greater than 64.
In this embodiment, in order to avoid the existence of the same virtual address in the virtual addresses generated by the indoor units with a plurality of unassigned addresses, the broadcast information includes a conflict information generation instruction, that is, the switching device sends the broadcast information including the virtual address generation instruction and the conflict information generation instruction, and when receiving the broadcast information, the indoor units with the unassigned addresses generate conflict information based on the conflict information generation instruction, and then generate corresponding virtual addresses based on the virtual address generation instruction and the conflict information, thereby reducing the probability that the virtual addresses have the same, so as to facilitate the smooth allocation of the addresses of the indoor units.
Step S30 includes:
step S34, when receiving the response information corresponding to the virtual address of the current polling, determining whether there is an indoor unit whose conflict information is the same as the conflict information in the currently received response information in the currently polled indoor units in the indoor unit system corresponding to the response information;
in this embodiment, when receiving the response information corresponding to the currently polled virtual address, the switching device determines, based on the conflict information in the response information, whether there is an indoor unit whose conflict information is the same as the conflict information in the currently received response information in the currently polled indoor units in the indoor unit system corresponding to the response information, so as to avoid the same virtual address in the virtual addresses generated by the indoor units without addresses, and avoid allocating the same address to the indoor units without addresses, thereby causing the heat recovery multi-split air conditioning system to fail to operate normally.
And step S35, when there is no indoor unit with conflict information identical to the conflict information in the currently received response information in the currently polled indoor units, sending the address to be allocated to the indoor unit generating the currently polled virtual address based on the virtual address.
In this embodiment, when there is no indoor unit whose conflict information is the same as the conflict information in the currently received response information in the currently polled indoor units, there is no indoor unit whose conflict information is the same, and therefore there is no indoor unit whose virtual address is the same, at this time, the switching device sends the address to be allocated to the indoor unit that generates the currently polled virtual address based on the virtual address.
Further, in an embodiment, step S30 includes:
when response information corresponding to the virtual address of the current polling is received, the address to be allocated and conflict information in the response information are sent to the indoor unit generating the virtual address of the current polling based on the virtual address, wherein when the address to be allocated and the conflict information are received, the indoor unit generating the virtual address of the current polling determines whether the received conflict information is consistent with the conflict information generated based on the conflict information generation instruction, when the conflict information is determined to be consistent with the conflict information generated based on the conflict information generation instruction, the address to be allocated is solidified, and address allocation success information is fed back when solidification is completed.
In this embodiment, when receiving the response information corresponding to the virtual address of the current polling, the switching device sends the address to be allocated and the conflict information in the response information to the indoor unit generating the virtual address of the current polling through the virtual address, and when receiving the address to be allocated and the conflict information corresponding to the virtual address, the indoor unit generating the virtual address of the current polling determines whether the received conflict information is consistent with the conflict information generated based on the conflict information generation instruction, upon determining that the received conflict information is consistent with conflict information generated based on the conflict information generation instruction, determining the address to be allocated as the address to be sent to the indoor unit generating the current polling virtual address, and further generating an indoor unit of the current polling virtual address to solidify the address to be allocated, and feeding back address allocation success information when the solidification is completed. In another real-time mode, when the received conflict information is inconsistent with conflict information generated based on the conflict information generation instruction, the indoor unit generating the current polling virtual address may send the conflict information generated based on the conflict information generation instruction and conflict information to the switching device again, so that the switching device determines the reason why the conflict information currently exists, for example, when the conflict information is stored in an error, the switching device updates the stored conflict information based on the currently received conflict information, and sends the address to be allocated and the conflict information corresponding to the virtual address to the indoor unit generating the current polling virtual address corresponding to the virtual address again based on the virtual address.
In this embodiment, when it is determined that the received conflict information is consistent with the conflict information generated based on the conflict information generation instruction, the address to be allocated is solidified, it is further ensured that the address to be allocated is the address of the indoor unit generating the current polling virtual address, the same address can be prevented from being allocated to a plurality of different indoor units, and therefore the heat recovery multi-split air conditioning system cannot normally operate after the address of the indoor unit is allocated, and the address allocation efficiency of the indoor units is further improved.
Further, in yet another embodiment, after the step S34, the step S30 further includes: when the indoor units with conflict information identical to the conflict information in the currently received response information exist in the currently polled indoor units, polling operation is respectively carried out on each group of indoor unit systems based on the virtual address which is not polled currently in the preset virtual addresses.
In this embodiment, when there is an indoor unit whose conflict information is the same as the conflict information in the currently received response information in the currently polled indoor units of the indoor units to which no address is allocated, the switching device performs polling operations on the indoor unit systems of each group respectively based on the virtual address that is not polled currently in the preset virtual address. That is, addresses are first allocated to the indoor units corresponding to the virtual addresses with different conflict information.
Further, in another embodiment, after step S40, the indoor unit address allocation method further includes:
and when the polling of the virtual address which is not polled currently in the preset virtual address is finished, continuously executing the step of sending the broadcast information comprising the conflict information generation instruction and the virtual address generation instruction.
In this embodiment, when polling of a virtual address that is not polled currently is completed, the step of sending broadcast information including a conflict information generation instruction and a virtual address generation instruction is continuously executed, and then addresses are allocated to indoor units that are not allocated with addresses in the current heat recovery multi-split air-conditioning system again, so that addresses are allocated to the indoor units that have the same conflict information, and thus addresses allocated to all the indoor units in the heat recovery multi-split air-conditioning system are ensured.
In the method for allocating address of an indoor unit in this embodiment, when an address allocation instruction sent by an outdoor unit is received, the switching device sends broadcast information including a virtual address generation instruction, where when the broadcast information is received, an indoor unit to which an address is not allocated generates a virtual address based on the virtual address generation instruction, and then when response information corresponding to a currently polled virtual address is received, it is determined whether an indoor unit having collision information identical to collision information in the response information exists in currently polled indoor units in an indoor unit system corresponding to the response information; and then when the indoor units with the conflict information identical to the conflict information in the currently received response information do not exist in the currently polled indoor units, the addresses to be allocated are sent to the indoor units generating the currently polled virtual addresses based on the virtual addresses, so that whether the indoor units with the consistent virtual addresses exist currently can be accurately determined according to the conflict information, the situation that the same addresses are allocated to the indoor units with the consistent virtual addresses, the heat recovery multi-split air-conditioning system cannot work normally is avoided, and the efficiency of allocating the addresses to the indoor units is further improved.
A fifth embodiment of the indoor unit address allocation method according to the present invention is proposed based on the above-mentioned embodiments, and referring to fig. 5, in this embodiment, step S10 includes:
step S11, when receiving an address allocation instruction sent by an outdoor unit, sending broadcast information including a heartbeat instruction, wherein when receiving the broadcast information of the heartbeat instruction, the indoor units of the allocated addresses in each group of indoor unit systems feed back identification information and addresses of the indoor unit systems to which the indoor units of the allocated addresses belong;
specifically, the heartbeat instruction is an address acquisition instruction, that is, when an allocation instruction of an address of an indoor unit sent by an outdoor unit is received, the switching device sends broadcast information including the heartbeat instruction to the indoor units of each group of indoor unit systems, and when the indoor unit of the address allocated to the indoor unit corresponding to each group of indoor unit systems receives the heartbeat instruction, the identification information and the address corresponding to the indoor unit are searched, and the identification information and the address are fed back to the switching device.
Step S12, when the identification information and the address are received, determining the unallocated address corresponding to each group of indoor unit systems respectively based on the identification information and the address;
in step S13, broadcast information including a virtual address generation instruction is transmitted.
In the address allocation method for the indoor units, when an address allocation instruction sent by an outdoor unit is received, broadcast information including a heartbeat instruction is sent, where when the broadcast information of the heartbeat instruction is received by the indoor units with addresses allocated in each group of indoor unit systems, identification information and addresses of the indoor unit systems to which the indoor units with addresses allocated belong are fed back, and then when the identification information and the addresses are received, unallocated addresses corresponding to the groups of indoor unit systems are determined based on the identification information and the addresses, respectively, and the identification information of the indoor units with addresses allocated in the indoor units corresponding to the groups of indoor unit systems can be obtained through the broadcast information, so that the accuracy and efficiency of address allocation of the indoor units are further improved.
The invention further provides a switching device, which is applied to a heat recovery multi-split air conditioning system provided with an outdoor unit and indoor units, wherein the switching device is arranged between the outdoor unit and the indoor units, the switching device is in butt joint with a plurality of groups of indoor unit systems, and at least two groups of the indoor unit systems comprise a plurality of indoor units.
The switching device includes: the switching device can be used for calling the indoor unit address allocation program and executing the following operations:
when receiving an address allocation instruction sent by an outdoor unit, the switching device sends broadcast information comprising a virtual address generation instruction, wherein when receiving the broadcast information, the indoor unit which is not allocated with an address generates a virtual address based on the virtual address generation instruction, and the virtual address generated by the indoor unit which is not allocated with an address is in the range of a preset virtual address;
when the time interval after the broadcast information is sent reaches a preset time interval, performing polling operation on each group of indoor unit systems respectively based on the preset virtual address so as to generate indoor unit feedback response information of the current polling virtual address;
when response information corresponding to the currently polled virtual address is received, sending the address to be allocated to the indoor unit generating the currently polled virtual address based on the virtual address, so that the indoor unit generating the currently polled virtual address can solidify the address to be allocated, and feeding back address allocation success information when the solidification is completed;
and when the address allocation success information is received, continuously executing the step of respectively carrying out polling operation on each group of indoor unit systems based on the preset virtual address.
Further, the switching device may call the indoor unit address allocation program, and further perform the following operations:
when response information corresponding to the virtual address of the current polling is received, acquiring identification information of an indoor unit system corresponding to the response information;
determining addresses to be allocated in unallocated addresses in the address field corresponding to the identification information according to a preset rule;
and sending the address to be allocated to the indoor unit generating the current polling virtual address based on the virtual address.
Further, the switching device may call the indoor unit address allocation program, and further perform the following operations:
updating the unallocated address based on the address to be allocated when the address allocation success information is received;
and continuing to perform the step of performing polling operation on each group of indoor unit systems respectively based on the preset virtual address.
Further, the switching device may call the indoor unit address allocation program, and further perform the following operations:
when receiving an address allocation instruction sent by an outdoor unit, the switching device sends broadcast information comprising a conflict information generation instruction and a virtual address generation instruction, wherein when receiving the broadcast information, an indoor unit which is not allocated with an address generates conflict information based on the conflict information generation instruction, and generates a corresponding virtual address based on the virtual address generation instruction and the conflict information;
when response information corresponding to the currently polled virtual address is received, the step of sending the address to be allocated to the indoor unit generating the virtual address based on the virtual address comprises the following steps:
when response information corresponding to the virtual address of the current polling is received, determining whether an indoor unit with conflict information identical to the conflict information in the currently received response information exists in the currently polled indoor units in the indoor unit system corresponding to the response information;
and when the indoor units with the conflict information identical to the conflict information in the currently received response information do not exist in the currently polled indoor units, sending the address to be allocated to the indoor unit generating the currently polled virtual address based on the virtual address.
Further, the switching device may call the indoor unit address allocation program, and further perform the following operations:
when the indoor units with conflict information identical to the conflict information in the currently received response information exist in the currently polled indoor units, polling operation is respectively carried out on each group of indoor unit systems based on the virtual address which is not polled currently in the preset virtual addresses.
Further, the switching device may call the indoor unit address allocation program, and further perform the following operations:
and when the polling of the virtual address which is not polled currently in the preset virtual address is finished, continuously executing the step of sending the broadcast information comprising the conflict information generation instruction and the virtual address generation instruction.
Further, the switching device may call the indoor unit address allocation program, and further perform the following operations:
when response information corresponding to the virtual address of the current polling is received, the address to be allocated and conflict information in the response information are sent to the indoor unit generating the virtual address of the current polling based on the virtual address, wherein when the address to be allocated and the conflict information are received, the indoor unit generating the virtual address of the current polling determines whether the received conflict information is consistent with the conflict information generated based on the conflict information generation instruction, when the received conflict information is consistent with the conflict information generated based on the conflict information generation instruction, the address to be allocated is solidified, and address allocation success information is fed back when the solidification is completed.
Further, the switching device may call the indoor unit address allocation program, and further perform the following operations:
when an address allocation instruction sent by an outdoor unit is received, sending broadcast information including a heartbeat instruction, wherein when the address allocated indoor unit in each group of indoor unit systems receives the broadcast information of the heartbeat instruction, the identification information and the address of the indoor unit system to which the address allocated indoor unit belongs are fed back;
when the identification information and the address are received, determining an unallocated address corresponding to each group of indoor unit systems respectively based on the identification information and the address;
broadcast information including a virtual address generation instruction is transmitted.
Furthermore, an embodiment of the present invention further provides a computer-readable storage medium, where an indoor unit address allocation program is stored on the computer-readable storage medium, and when executed, the indoor unit address allocation program implements the following operations:
when receiving an address allocation instruction sent by an outdoor unit, the switching device sends broadcast information comprising a virtual address generation instruction, wherein when receiving the broadcast information, the indoor unit which is not allocated with an address generates a virtual address based on the virtual address generation instruction, and the virtual address generated by the indoor unit which is not allocated with an address is in the range of a preset virtual address;
when the time interval after the broadcast information is sent reaches a preset time interval, performing polling operation on each group of indoor unit systems respectively based on the preset virtual address so as to generate indoor unit feedback response information of the current polling virtual address;
when response information corresponding to the currently polled virtual address is received, sending the address to be allocated to the indoor unit generating the currently polled virtual address based on the virtual address, so that the indoor unit generating the currently polled virtual address can solidify the address to be allocated, and feeding back address allocation success information when the solidification is completed;
and when the address allocation success information is received, continuously executing the step of respectively carrying out polling operation on each group of indoor unit systems based on the preset virtual address.
Further, the indoor unit address allocation program, when executed, further implements the following operations:
when response information corresponding to the virtual address of the current polling is received, acquiring identification information of an indoor unit system corresponding to the response information;
determining addresses to be allocated in unallocated addresses in the address field corresponding to the identification information according to a preset rule;
and sending the address to be allocated to the indoor unit generating the current polling virtual address based on the virtual address.
Further, the indoor unit address allocation program, when executed, further implements the following operations:
updating the unallocated address based on the address to be allocated when the address allocation success information is received;
and continuing to perform the step of performing polling operation on each group of indoor unit systems respectively based on the preset virtual address.
Further, the indoor unit address allocation program, when executed, further implements the following operations:
when receiving an address allocation instruction sent by an outdoor unit, the switching device sends broadcast information comprising a conflict information generation instruction and a virtual address generation instruction, wherein when receiving the broadcast information, an indoor unit which is not allocated with an address generates conflict information based on the conflict information generation instruction, and generates a corresponding virtual address based on the virtual address generation instruction and the conflict information;
when response information corresponding to the currently polled virtual address is received, the step of sending the address to be allocated to the indoor unit generating the virtual address based on the virtual address comprises the following steps:
when response information corresponding to the virtual address of the current polling is received, determining whether an indoor unit with conflict information identical to the conflict information in the currently received response information exists in the currently polled indoor units in the indoor unit system corresponding to the response information;
and when the indoor units with the conflict information identical to the conflict information in the currently received response information do not exist in the currently polled indoor units, sending the address to be allocated to the indoor unit generating the currently polled virtual address based on the virtual address.
Further, the indoor unit address allocation program, when executed, further implements the following operations:
when the indoor units with conflict information identical to the conflict information in the currently received response information exist in the currently polled indoor units, polling operation is respectively carried out on each group of indoor unit systems based on the virtual address which is not polled currently in the preset virtual addresses.
Further, the indoor unit address allocation program, when executed, further implements the following operations:
and when the polling of the virtual address which is not polled currently in the preset virtual address is finished, continuously executing the step of sending the broadcast information comprising the conflict information generation instruction and the virtual address generation instruction.
Further, the indoor unit address allocation program, when executed, further implements the following operations:
when response information corresponding to the virtual address of the current polling is received, the address to be allocated and conflict information in the response information are sent to the indoor unit generating the virtual address of the current polling based on the virtual address, wherein when the address to be allocated and the conflict information are received, the indoor unit generating the virtual address of the current polling determines whether the received conflict information is consistent with the conflict information generated based on the conflict information generation instruction, when the received conflict information is consistent with the conflict information generated based on the conflict information generation instruction, the address to be allocated is solidified, and address allocation success information is fed back when the solidification is completed.
Further, the indoor unit address allocation program, when executed, further implements the following operations:
when an address allocation instruction sent by an outdoor unit is received, sending broadcast information including a heartbeat instruction, wherein when the address allocated indoor unit in each group of indoor unit systems receives the broadcast information of the heartbeat instruction, the identification information and the address of the indoor unit system to which the address allocated indoor unit belongs are fed back;
when the identification information and the address are received, determining an unallocated address corresponding to each group of indoor unit systems respectively based on the identification information and the address;
broadcast information including a virtual address generation instruction is transmitted.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. An indoor unit address allocation method is applied to a heat recovery multi-split air conditioning system provided with an outdoor unit and indoor units, a switching device is arranged between the outdoor unit and the indoor units, the switching device is in butt joint with a plurality of groups of indoor unit systems, at least two groups of the indoor unit systems comprise a plurality of indoor units, and the indoor unit address allocation method is characterized by comprising the following steps:
when receiving an address allocation instruction sent by an outdoor unit, the switching device sends broadcast information comprising a virtual address generation instruction, wherein when receiving the broadcast information, the indoor unit which is not allocated with an address generates a virtual address based on the virtual address generation instruction, and the virtual address generated by the indoor unit which is not allocated with an address is in the range of a preset virtual address;
when the time interval after the broadcast information is sent reaches a preset time interval, performing polling operation on each group of indoor unit systems respectively based on the preset virtual address so as to generate indoor unit feedback response information of the current polling virtual address;
when response information corresponding to the currently polled virtual address is received, sending the address to be allocated to the indoor unit generating the currently polled virtual address based on the virtual address, so that the indoor unit generating the currently polled virtual address can solidify the address to be allocated, and feeding back address allocation success information when the solidification is completed;
when the address allocation success information is received, continuing to perform the step of performing polling operation on each group of indoor unit systems respectively based on the preset virtual address;
wherein, when receiving an address allocation command sent by an outdoor unit, the step of sending broadcast information including a virtual address generation command by the switching device includes:
when receiving an address allocation instruction sent by an outdoor unit, the switching device sends broadcast information comprising a conflict information generation instruction and a virtual address generation instruction, wherein when receiving the broadcast information, an indoor unit which is not allocated with an address randomly generates conflict information according to a preset algorithm based on the conflict information generation instruction, and generates a corresponding virtual address based on the virtual address generation instruction and the conflict information;
when response information corresponding to the virtual address of the current polling is received, the step of sending the address to be allocated to the indoor unit generating the virtual address of the current polling based on the virtual address comprises the following steps:
when response information corresponding to the virtual address of the current polling is received, determining whether an indoor unit with conflict information identical to the conflict information in the currently received response information exists in the currently polled indoor units in the indoor unit system corresponding to the response information;
when the indoor units with conflict information identical to the conflict information in the currently received response information exist in the currently polled indoor units, polling operation is respectively carried out on each group of indoor unit systems based on the virtual address which is not polled currently in the preset virtual addresses.
2. The indoor unit address allocation method according to claim 1, wherein the step of sending the address to be allocated to the indoor unit that generates the virtual address for current polling based on the virtual address when receiving the response information corresponding to the virtual address for current polling comprises:
when response information corresponding to the virtual address of the current polling is received, acquiring identification information of an indoor unit system corresponding to the response information;
determining addresses to be allocated in unallocated addresses in the address field corresponding to the identification information according to a preset rule;
and sending the address to be allocated to the indoor unit generating the current polling virtual address based on the virtual address.
3. The indoor unit address allocation method according to claim 2, wherein the step of continuing to perform polling operations on the respective groups of indoor unit systems based on the preset virtual address when the address allocation success information is received includes:
updating the unallocated address based on the address to be allocated when the address allocation success information is received;
and continuing to perform the step of performing polling operation on each group of indoor unit systems respectively based on the preset virtual address.
4. The indoor unit address allocation method according to claim 1, wherein after the step of determining whether there is an indoor unit having collision information identical to collision information in response information among currently polled indoor units in the indoor unit system corresponding to the response information when receiving the response information corresponding to the currently polled virtual address, the method further comprises:
and when the indoor units with the conflict information identical to the conflict information in the currently received response information do not exist in the currently polled indoor units, sending the address to be allocated to the indoor unit generating the currently polled virtual address based on the virtual address.
5. The indoor unit address allocation method according to claim 4, wherein after the step of performing polling operations on the respective groups of indoor unit systems based on the virtual addresses that are not polled currently in the preset virtual addresses, the indoor unit address allocation method further includes:
and when the polling of the virtual address which is not polled currently in the preset virtual address is finished, continuously executing the step of sending the broadcast information comprising the conflict information generation instruction and the virtual address generation instruction.
6. The indoor unit address allocation method according to claim 4, wherein the step of sending the address to be allocated to the indoor unit that generates the virtual address of the current polling based on the virtual address when receiving the response information corresponding to the virtual address of the current polling comprises:
when response information corresponding to the virtual address of the current polling is received, the address to be allocated and conflict information in the response information are sent to the indoor unit generating the virtual address of the current polling based on the virtual address, wherein when the address to be allocated and the conflict information are received, the indoor unit generating the virtual address of the current polling determines whether the received conflict information is consistent with the conflict information generated based on the conflict information generation instruction, when the received conflict information is consistent with the conflict information generated based on the conflict information generation instruction, the address to be allocated is solidified, and address allocation success information is fed back when the solidification is completed.
7. The indoor unit address allocation method according to any one of claims 1 to 6, wherein the step of the switching device sending broadcast information including a virtual address generation instruction upon receiving an address allocation instruction sent from an outdoor unit comprises:
when an address allocation instruction sent by an outdoor unit is received, sending broadcast information including a heartbeat instruction, wherein when the address allocated indoor unit in each group of indoor unit systems receives the broadcast information of the heartbeat instruction, the identification information and the address of the indoor unit system to which the address allocated indoor unit belongs are fed back;
when the identification information and the address are received, determining an unallocated address corresponding to each group of indoor unit systems respectively based on the identification information and the address;
broadcast information including a virtual address generation instruction is transmitted.
8. The utility model provides a auto-change over device, is applied to the heat recovery multi-online air conditioning system who is equipped with off-premises station and indoor set, the auto-change over device sets up between the off-premises station with the indoor set, the auto-change over device butt joint multiunit indoor set system, at least two sets of in the multiunit indoor set system include a plurality of indoor sets, its characterized in that, the auto-change over device includes:
indoor unit address allocation program configured to implement the steps of the indoor unit address allocation method according to any one of claims 1 to 7.
9. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon an indoor-unit address allocation program, which when executed implements the steps of the indoor-unit address allocation method according to any one of claims 1 to 7.
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| CN109695935B (en) * | 2018-12-29 | 2022-01-14 | 上海新时达电气股份有限公司 | Air conditioner addressing method, electronic equipment and storage medium |
| CN110290231A (en) * | 2019-06-24 | 2019-09-27 | 广东美的暖通设备有限公司 | Distribution method, distributor, central air conditioner system and storage medium |
| CN112378059A (en) * | 2020-11-02 | 2021-02-19 | 佛山市顺德区美的电子科技有限公司 | Multi-split air conditioner system and automatic addressing method thereof, outdoor unit and storage medium |
| CN113114793B (en) * | 2021-03-22 | 2022-05-17 | 珠海格力电器股份有限公司 | Slave node address competition method and device and electrical appliance system |
| CN113556270B (en) * | 2021-07-20 | 2023-03-14 | 苏州苏试试验集团股份有限公司 | CAN network |
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