CN113294892B

CN113294892B - Cloud multi-connected air conditioning unit and control method thereof

Info

Publication number: CN113294892B
Application number: CN202110601662.4A
Authority: CN
Inventors: 王瑞佳; 宫华耀; 孙超; 林文涛; 任兆亭
Original assignee: Qingdao Hisense Hitachi Air Conditioning System Co Ltd
Current assignee: Qingdao Hisense Hitachi Air Conditioning System Co Ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2022-08-26
Anticipated expiration: 2041-05-31
Also published as: CN113294892A

Abstract

The invention provides a cloud multi-connected air conditioning unit, which comprises: the system comprises at least one air conditioning unit, a cloud multi-connected management platform and a cloud computing platform; the air conditioning unit includes: the outdoor unit is used for acquiring data and receiving instructions, and acquiring and reporting the operating parameters of the air conditioning unit in real time; the cloud multi-connected management platform performs central control and management on the air conditioner group, receives the operation parameters and reports the operation parameters; and the cloud computing platform completes computing decisions based on the summary parameters, issues instructions to the cloud multi-connected management platform, distributes the instructions to the corresponding outdoor units by the cloud multi-connected management platform system, and completes control of the indoor units by the outdoor units.

Description

Cloud multi-connected air conditioning unit and control method thereof

Technical Field

The invention relates to the field of air conditioning multi-connected units, in particular to a cloud multi-connected air conditioning unit and a control method thereof.

Background

The traditional multi-connected air conditioner unit consists of one or more outdoor units and a plurality of indoor units, and energy conversion and transmission are carried out by depending on the flowing of a refrigerant. However, in the world of interconnection of everything, the traditional independent multi-connected unit can not meet the current user requirements and the technical level of the internet of things which is developed at a high speed.

With the rise of intelligent household appliances and the development of network technology, a plurality of multi-connected units have networking functions, but the problems of too few base stations, poor access stability of the units and unstable wireless transmission signals still exist; meanwhile, the management and maintenance cost of the air conditioning unit is high, and the capacity of real-time maintenance of large data of a platform and control of the air conditioning unit to meet the requirements of users is lacked; in addition, the internal computing power of the outdoor unit is too low to complete the complex decision-making operation of the air conditioning function, and the slightly complex operation causes too large load of the outdoor unit and causes too high equipment cost.

Therefore, a cloud multi-connected air conditioning unit is urgently needed to be provided, a large number of air conditioning units can be connected into the internet of things to perform multi-unit synchronous real-time data management, and the problem that decision operation of an air conditioning function cannot be completed due to insufficient built-in computing power of an outdoor unit of the cloud multi-connected air conditioning unit can be effectively solved by means of strong external cloud computing capacity.

Disclosure of Invention

The invention provides a cloud multi-connected air conditioning unit and a control method thereof, and aims to solve the technical problem that a large number of air conditioning units in the prior art cannot perform multi-unit synchronous real-time data management when being connected to the Internet of things and effectively solve the technical problem that the built-in computing power of an outdoor unit of the cloud multi-connected air conditioning unit is insufficient in the prior art.

In some embodiments of the present application, a cloud multi-connected air conditioning unit is provided, including:

at least one air conditioning unit, each air conditioning unit comprising: the system comprises at least one indoor unit, at least one outdoor unit connected with the indoor unit and a line controller arranged corresponding to the indoor unit, wherein the outdoor unit is used for acquiring data and receiving instructions and acquiring and reporting the operating parameters of the air conditioning unit in real time;

the method comprises the following steps that a cloud multi-connected management platform carries out central control and management on an air conditioner set, receives operation parameters and reports the operation parameters;

and the cloud computing platform completes computing decisions based on the summary parameters, issues instructions to the cloud multi-connected management platform, distributes the instructions to the corresponding outdoor units by the cloud multi-connected management platform system, and completes control on the indoor units by the outdoor units.

In some embodiments of the present application, the cloud multi-connected management platform further includes:

the Internet of things management platform performs information interaction with the outdoor unit, receives and manages reported operation parameters, and outputs summary parameters;

and the background server carries out man-machine interaction operation and updates and maintains the background database in real time.

In some embodiments of the application, the cloud computing platform is provided to complete the priority decision of the line controller based on the summary parameters, and issue a priority decision instruction to the internet of things management platform, the internet of things management platform distributes the priority decision instruction to the corresponding outdoor unit, and the outdoor unit completes the selection of the main line controller according to the priority decision instruction.

In some embodiments of the present application, an outdoor unit includes:

the system comprises at least one sensor, a control unit and a control unit, wherein the sensor is used for acquiring a plurality of operating parameters of an indoor unit in real time;

the communication module is used for performing information interaction with the Internet of things management platform, uploading operation parameters and receiving a priority decision instruction;

and the at least one controller completes the selection of the main line controller according to the decision instruction.

In some embodiments of the present application, an internet of things management platform is provided, including:

at least one interface module for maintaining the access state of the outdoor unit in real time; receiving a priority decision instruction issued by a cloud computing platform and issuing the priority decision instruction to a corresponding outdoor unit;

the service gateway module receives the operation parameters sent by the outdoor unit and reports the operation parameters to the cloud computing platform in a convergence management manner; and receiving an operation instruction sent by the background server system, and sending the operation parameters of the air conditioning unit to the background server system.

In some embodiments of the application, the cloud computing platform in the cloud multi-connected air conditioning unit completes the priority weight computation of the air conditioning unit based on the priority weight computation model, and distributes the priority weight configuration to the internet of things management platform;

calling a database training basic priority data model, and finishing the training of the priority data model by combining the habit model data used by the user;

receiving updated data sent by the Internet of things management platform to continuously perfect the data model;

and receiving an operation instruction sent by the background server system, and sending the data model of the air conditioning unit to the background server system.

In some embodiments of the present application, a controller is provided for the outdoor unit to assign addresses to the indoor units according to the number of the indoor units, and the cloud computing platform calculates a priority weight value of each indoor unit and sends the priority weight value to the outdoor unit;

and the outdoor unit circularly judges the priority weight value of each indoor unit, finds the indoor unit corresponding to the maximum value of the priority weight value and sends a starting priority instruction to the indoor unit corresponding to the maximum value of the priority weight value.

In some embodiments of the present application, when the indoor unit receives the start priority command sent by the outdoor unit, the indoor unit becomes the main indoor unit, and the other indoor units become the auxiliary indoor units.

In some embodiments of the present application, when the wire controller receives a start priority instruction sent by the main indoor unit, the wire controller becomes a main wire controller, and the other wire controllers become auxiliary wire controllers.

In some embodiments of the present application, the main line controller notifies the outdoor unit through the corresponding main indoor unit, sends a main control instruction, and broadcasts and sends the main control instruction to the auxiliary indoor unit and the auxiliary line controller to control functions of other auxiliary line controllers and auxiliary indoor units.

In some embodiments of the present application, a method for controlling a cloud multi-connected air conditioning unit is provided, where the method is applied to the cloud multi-connected air conditioning unit, and includes:

the method comprises the following steps that at least one outdoor unit collects data and receives instructions, and collects and reports operation parameters of the air conditioning unit in real time;

the cloud multi-connected management platform performs central control and management on the air conditioner unit, receives the operation parameters and reports the operation parameters;

and the cloud computing platform completes computing decisions based on the summary parameters, issues instructions to the cloud multi-connected management platform, distributes the instructions to the corresponding outdoor units by the cloud multi-connected management platform system, and completes control of the indoor units by the outdoor units.

In some embodiments of the present application, the steps of performing central control and management on the air conditioner group and reporting the operation parameters by using the cloud multi-connected management platform further include:

and the background server performs man-machine interaction operation and updates and maintains the background database in real time.

In some embodiments of the present application, the provided cloud computing platform completes a computation decision based on the summary parameter, issues an instruction to the cloud multi-connected management platform, is distributed to the corresponding outdoor unit by the cloud multi-connected management platform system, and completes a step of controlling the indoor unit by the outdoor unit, further including:

and finishing the priority decision of the line controllers based on the summarized parameters, issuing a priority decision instruction to the Internet of things management platform, distributing the priority decision instruction to the corresponding outdoor units by the Internet of things management platform, and finishing the selection of the main line controllers by the outdoor units according to the priority decision instruction.

The invention has the technical effects or advantages that:

according to the invention, the data are collected through the internet of things management platform, after the complex decision calculation of the cloud computing platform, the cloud computing platform sends an instruction to the outdoor unit, the outdoor unit monitors and controls the functions of the indoor unit and the wire controller, and further, the function of the priority decision of the wire controller of the cloud multi-connected unit can be realized.

The outstanding technical effects of the invention are as follows:

1) the multi-unit data of a large number of air conditioning units accessed to the Internet of things are synchronously managed in real time;

2) the problem that the built-in computing power of the outdoor unit of the cloud multi-connected air conditioning unit is insufficient is effectively solved;

3) the cloud multi-connected management platform has high throughput and can simultaneously support simultaneous access of a large number of users;

4) the cloud multi-connection management platform can realize asynchronous control and data acquisition and reduce disaster tolerance risks;

5) based on the cloud computing platform, the operation load of the air conditioner outdoor unit can be reduced, a complex algorithm can be realized, and the air conditioner cost is reduced;

6) further, based on the cloud computing platform, the air conditioner outdoor unit abandons complex algorithms, directly receives cloud instructions, and controls the indoor unit and the line controller through the communication port, so that the priority decision function of the line controller is realized.

Drawings

Fig. 1 is a schematic architecture diagram of a cloud multi-connected air conditioning unit according to an embodiment of the invention;

FIG. 2 is a schematic diagram of an outdoor unit according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of an internet of things management platform according to an embodiment of the present invention;

fig. 4 is a schematic flow chart of a control method of a cloud multi-connected air conditioning unit according to an embodiment of the invention;

fig. 5 is a schematic diagram of a topology and a data flow of a cloud multi-connected unit according to an embodiment of the present invention;

fig. 6 is a schematic diagram of a cloud multi-connected management platform principle and a data flow according to an embodiment of the present invention;

fig. 7 is a schematic diagram illustrating a main line controller selection process according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of a control flow of a main line controller according to an embodiment of the present invention;

fig. 9 is a schematic diagram of a function list for controlling a cloud multi-connected unit according to an embodiment of the present invention.

In the above figures:

10. cloud multi-connected air conditioning unit 20, air conditioning unit 30 and cloud multi-connected management platform

40. Cloud computing platform 50, background server 60 and Internet of things management platform

21. Indoor unit 22, line controller 23, and outdoor unit

231. Sensor 232, communication module 233, controller

301. Interface module 302 and service gateway module

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

It is obvious that the drawings in the following description are only examples or embodiments of the present application, and that it is also possible for a person skilled in the art to apply the present application to other similar contexts on the basis of these drawings without inventive effort. Moreover, it should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions must be made to achieve the developers' specific goals, such as compliance with system-related and business-related constraints, which may vary from one implementation to another. Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the specification. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is to be expressly and implicitly understood by one of ordinary skill in the art that the embodiments described herein may be combined with other embodiments without conflict. Unless defined otherwise, technical or scientific terms referred to herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which this application belongs. Reference to "a," "an," "the," and similar words throughout this application are not to be construed as limiting in number, and may refer to the singular or the plural. The present application is directed to the use of the terms "including," "comprising," "having," and any variations thereof, which are intended to cover non-exclusive inclusions; for example, a process, method, system, article, or apparatus that comprises a list of steps or modules (elements) is not limited to the listed steps or elements, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. Reference to "connected," "coupled," and the like in this application is not intended to be limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

The term "plurality" as referred to herein means two or more. "and/or" describes the association relationship of the associated object, indicating that there may be three relationships, for example, "a and/or B" may indicate: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. Reference herein to the terms "first," "second," "third," and the like, are merely to distinguish similar objects and do not denote a particular ordering for the objects.

The invention aims to provide a cloud multi-connected air conditioning unit, which realizes the functions of automatically acquiring operating parameters of the air conditioning unit and uploading data to a cloud based on an internet of things management platform, the uploaded data is calculated by a cloud computing platform, a final instruction is sent to an air conditioning outdoor unit, the air conditioning outdoor unit executes the final instruction output by cloud computing, the final instruction is sent to an air conditioning indoor unit and a wire controller for function control, and the function of controlling the priority of the wire controller is further achieved.

The cloud multi-connected air conditioning unit and the control method thereof provided by the present application are further described below with reference to the accompanying drawings.

Fig. 1 is a schematic architecture diagram of a cloud multi-connected air conditioning unit according to an embodiment of the present invention, and as shown in fig. 1, a cloud multi-connected air conditioning unit 10 according to an embodiment of the present invention includes: the system comprises at least one air conditioning unit 20, a cloud multi-connected management platform 30 and a cloud computing platform 40; wherein, air conditioning unit 20 includes: at least one indoor unit 21, and a line controller 22 corresponding to the indoor unit 21; the outdoor unit 23 finishes data acquisition and instruction receiving, and acquires and reports the operating parameters of the air conditioning unit in real time;

the cloud multi-connected management platform 30 is in communication connection with the outdoor unit 23, and the cloud computing platform 40 is in system communication connection with the cloud multi-connected management platform 30; the cloud multi-connected management platform 30 performs central control and management on the air conditioning unit 20 and reports operation parameters; the cloud computing platform 40 completes computing decisions based on the summary parameters, issues instructions to the cloud multi-connected management platform 30, and the instructions are distributed to the corresponding outdoor units 23 by the cloud multi-connected management platform 30, so that the outdoor units 23 complete control over the indoor units 21.

Further, the cloud multi-connected management platform 30 provided in the embodiment of the present invention further includes:

the internet of things management platform 60: the communication connection outdoor unit 23 is used for performing information interaction with the outdoor unit 23, receiving and managing reported operation parameters, receiving the operation parameters and outputting summary parameters;

the background server 50: and the system is in communication connection with the cloud computing platform 40 and the Internet of things management platform 60, performs man-machine interaction operation, and updates and maintains the background database in real time.

Further, the cloud computing platform 40 completes the priority decision of the line controller 22 based on the summary parameters, issues a priority decision instruction to the internet of things management platform 60, and the priority decision instruction is distributed to the corresponding outdoor unit 23 by the internet of things management platform 60, and then the outdoor unit 23 completes the selection of the main line controller according to the priority decision instruction.

Further, the cloud computing platform 40 completes the priority weight computation of the air conditioning unit 20 based on the priority weight computation model, and issues the priority weight configuration to the internet of things management platform 60; calling a database training basic priority data model, and finishing the training of the priority data model by combining the habit model data used by the user; receiving updated data sent by the internet of things management platform 60 to continuously perfect the data model; and receiving an operation instruction sent by the background server system 50, and sending the data model of the air conditioning unit 20 to the background server system 50.

Fig. 2 is a schematic structural view of an outdoor unit according to an embodiment of the present invention, and as shown in fig. 2, the outdoor unit 23 includes: at least one sensor 231, at least one communication module 232, and at least one controller 233;

the sensor 231 is used for acquiring a plurality of operating parameters of the indoor unit 21 in real time; the communication module 232 performs information interaction with the internet of things management platform 30, uploads operating parameters and receives a priority decision instruction; the controller 233 completes the selection of the main line controller according to the decision instruction.

Further, the controller 233 allocates addresses to the indoor units 21 according to the number of the indoor units 21, and the cloud computing platform 40 calculates a priority weight value of each indoor unit 21 and sends the priority weight value to the outdoor unit 23; the outdoor unit 23 circularly judges the priority weight value of each indoor unit 21, finds the indoor unit 21 corresponding to the maximum value of the priority weight value, and sends a starting priority instruction to the indoor unit 21 corresponding to the maximum value of the priority weight value.

When the indoor unit 21 receives the start priority command transmitted from the outdoor unit 23, the indoor unit 21 becomes the main indoor unit 211, and the other indoor units 21 become sub-indoor units. When the line controller 22 receives the start priority command sent by the main indoor unit 211, the line controller 22 becomes the main line controller 221, and the other line controllers 22 become sub line controllers.

The main line controller 221 notifies the outdoor unit 23 through the corresponding main indoor unit 211, sends out a main control command, and broadcasts and sends the main control command to the auxiliary indoor units and the auxiliary line controllers so as to control the functions of other auxiliary indoor units and auxiliary line controllers.

Fig. 3 is a schematic structural diagram of an internet of things management platform according to an embodiment of the present invention, and as shown in fig. 3, an internet of things management platform 30 includes: at least one interface module 301 and a service gateway module 302;

the interface module 301 maintains the access state of the outdoor unit 23 in real time; receiving a priority decision instruction issued by the cloud computing platform 40, and issuing the priority decision instruction to the corresponding outdoor unit 23;

the service gateway module 302 is used for receiving the operation parameters sent by the outdoor unit 23, and reporting the operation parameters to the cloud computing platform 40 in a convergent way; and receiving an operation instruction sent by the background server system 50, and sending the operation parameters of the air conditioning unit to the background server system 50.

Fig. 4 is a schematic flow diagram of a control method of a cloud multi-connected air conditioning unit according to an embodiment of the present invention, and as shown in fig. 4, the control method of the cloud multi-connected air conditioning unit is applied to the cloud multi-connected air conditioning unit, and includes:

step 1: the at least one outdoor unit 23 collects data and receives instructions, and collects and reports the operation parameters of the air conditioning unit in real time;

step 2: the cloud multi-connected management platform 30 performs central control and management on the air conditioning unit 20 and reports operation parameters;

and step 3: the cloud computing platform 40 completes computing decisions based on the summary parameters, issues instructions to the cloud multi-connected management platform 30, and the instructions are distributed to the corresponding outdoor units 23 by the cloud multi-connected management platform 30, so that the outdoor units 23 complete control over the indoor units 21.

In some embodiments of the present application, step 2 is provided: the cloud multi-connected management platform carries out central control and management on the air conditioner group, reports the operation parameters, and further comprises:

1. the internet of things management platform 60 performs information interaction with the outdoor unit 23, receives and manages reported operation parameters, and outputs summary parameters;

2. the background server 50 operates in a man-machine interaction manner and updates and maintains the background database in real time.

In some embodiments of the present application, step 3 further includes:

and the priority decision of the line controller 21 is completed based on the summary parameters, a priority decision instruction is issued to the internet of things management platform 60, the internet of things management platform 60 distributes the priority decision instruction to the corresponding outdoor unit 23, and the outdoor unit 23 completes the selection of the main line controller according to the priority decision instruction.

The invention effectively combines the technology of the Internet of things and the cloud platform, has the characteristics of good sensitivity, high accuracy and strong fatigue resistance, and can be applied to the field of cloud multi-connected air conditioning units, the field of indoor environment monitoring and the like.

Compared with the traditional multi-online mode, the cloud multi-online mode air conditioning unit data cloud entering mode adopted by the specific embodiment of the invention has inherent advantages. Firstly, the coverage of the NB-IoT base station is wider, and the inherent manufacturing cost and operation and maintenance cost are also better than those of other cloud entering modes. And do not worry about having user's interference, for example adopt wifi form to come into the cloud, generally all need the user to establish the connection manually, 2.4G frequency channel mutual interference simultaneously, the coverage area is relatively limited. There is no concern with the NB-IoT form. The invention provides a cloud multi-connected air-conditioning outdoor unit suitable for the line controller priority of NB-IoT, which mainly expands the communication form of a network by adapting an NB-IoT module as a whole unit, can solve the problem of low activation rate, and simultaneously puts a complex algorithm to a cloud end to play incomparable special advantages and remotely control the priority of the air-conditioning line controller to meet the requirements of users.

The NB-IoT (network B-IoT) Internet of things management platform selects principles such as ultra-narrow band, repeated transmission, simplified network protocols and the like, and obtains the bearing capacity for the low-power-consumption wide-area Internet of things by sacrificing certain speed, time delay and mobile instinct, and has the following characteristics:

1) the Internet of things management platform is high in throughput, and the NB technology Internet of things management platform is used for supporting 1 hundred million users to access simultaneously.

2) Asynchronous control and data acquisition can be realized, and disaster tolerance risks can be reduced. The initiator of the scheme in the invention is the background, and as long as the air conditioner uploads data information, the background can automatically schedule and send the priority control request of the line controller according to the algorithm, thereby realizing asynchronous control, avoiding the time period of network congestion and reducing the possibility of network disaster tolerance.

The NB-IoT application scene is large in scale, management and maintenance costs of the air conditioning units are high, and IoT platform big data are needed to maintain and control the air conditioning units in real time to meet user requirements.

In the specific embodiment of the invention, the internet of things adopts an internet of things interconnection technology based on an NB-IoT technology, but the invention is not limited to the technology, and other internet of things interconnection technologies can also be adopted.

Fig. 5 is a schematic diagram of a topology and a data flow of a cloud multi-connected unit according to an embodiment of the present invention, as shown in fig. 5, a cloud platform of the present invention collects parameters of an air conditioning unit through NB-IoT, where the parameters include a temperature sensor value, a pressure sensor value, an outdoor Fan gear, an outlet air temperature, an return air temperature, an indoor Fan gear, a compressor frequency, an air pipe temperature, a liquid pipe temperature, and the like, the NB-IoT transmits the parameters to the cloud platform, the cloud platform issues a control command to the outdoor unit by virtue of excellent computing power, the outdoor unit transmits the control command to the indoor unit, and the indoor unit transmits the control command to a corresponding line controller, so that the whole set of air conditioning system is called a cloud multi-connected unit.

Fc(n)＝∑i(Ncol×HP_Con(i)×Kc(i))+KT×KPd×Σj(Nhot×HP_Hon(j)×Kh(j)×Kfan(j))+[1.0×Σk(HP_HToff(k))+0.8×Σm(HP_Hoff(m))+50×KTout×Nout]×khp

Fc (n): the priority weight value of each indoor unit in the air conditioning unit, wherein n is the nth indoor unit

Ncol, Nhot: control constants, Ncol cooling and Nhot heating according to Ti temperature

Correction of discharge temperature of Khp Pd outdoor machine

HP _ Con (i): i Total operating Capacity (HP) of refrigerating THERMO ON indoor Unit

Kc (i): is a value fitted by the Ti (suction temperature) of the indoor unit and is slightly smaller than the Ti

KT：KT＝-0.07*Tamin+1.5

Tamin: minimum value of outside air temperature of outdoor unit

KPd：Kpd＝-2.04*(Pdmax-Pt)*KHP+1.0

Pt-Pdo-0.2 KHP is data between 0 and KT

Pdo: heating control constant

Pdmax: maximum value of discharge temperature of outdoor unit

khp: exhaust temperature correction of Pd outdoor unit

HP _ Hon (j): total operating capacity (HP) of heating THERMO ON indoor unit number j

Kh (j): is a coefficient of 0.4-1.2 obtained by subtracting the Ti suction temperature from the set temperature Ts of the indoor unit

Kfan (j) when the indoor machine is in high wind: 1, stroke: 0.75, low wind: 0.6 breeze: 0.6

HP _ HToff (k): horsepower of heating THERMO OFF indoor unit of k number (including indoor residual operation)

HP _ Hoff (m): horsepower of m-th heating stop indoor unit

KTout：＝KT–(Tamin-23)/16

And finally calculating Fc (n) through formula fitting, wherein the specific meaning of the algorithm is not developed in the invention, and the final range is shown as the value range of Fc (n) in table 3:

fc (n) range	Priority ratio of wire controller
		0	0％
1～10	5％
		11～20	7％
21～30	10％
		31～40	15％
41～50	25％
		51～60	40％
61～70	50％
		71～80	60％
81～90	80％
		91～100	100％

Note: n is the number of each indoor unit,

note: the indoor units are not communicated with each other and are all transferred through the outdoor unit;

note: the selection of the priority function of the drive-by-wire device is a parameter which is set by the cloud platform and can be saved in an EEPROM of the outdoor unit.

As long as the priority accounts for 80% -100%, the wire controller judges that the wire controller has the priority function, the maximum percentage is selected, after the outdoor unit receives the calculation result of the cloud platform, a priority starting command is sent to the corresponding indoor unit, the indoor unit transmits the command to the wire controller, the wire controller has the priority function, the indoor unit with the priority has the same effect that the VIP function is started, the wire controller has more functions and better effects than other indoor units, and meanwhile, the wire controller has the function of controlling the indoor units in other rooms.

Table 1 is a data flow detail table, as shown in the service data flow of table 1:

fig. 6 is a schematic diagram illustrating a principle of a cloud multi-connected management platform and data flow according to an embodiment of the present invention; as shown in fig. 6, the air conditioner outdoor unit equipped with an NB-IoT (Narrow Band Internet of Things) protocol adapter gateway is adopted in the present invention, so that the functions of collecting unit operation parameters and uploading data to the cloud end can be realized, the final instruction is sent to the air conditioner outdoor unit through the effective data and cloud computing, and the final instruction obtained through cloud computing is executed by the air conditioner outdoor unit and sent to the air conditioner indoor unit and the line controller, so as to finally control the functions of the indoor unit and the line controller.

As shown in fig. 6, a message flow diagram of an NB-IoT accessed air conditioner outdoor unit and background communication is shown, and a background device in the embodiment of the present invention uses a mobile APP or a PC, but the present invention is not limited thereto, and other background access manners may also be used. The background is a user operable interface. As shown in fig. 6, a schematic diagram of a cloud multi-connected management platform architecture is used to complete transmission of data streams based on NB-IoT technology, where an IoT platform (including a service gateway and a CMP positioning interface) and a background form a core part of an internet of things management platform.

Air conditioning: the air conditioner outdoor unit is provided with a sensor and an NB wireless transmission module and is arranged in the air conditioner outdoor unit electric control box;

a base station: an operator mobile phone base station;

a core network: an operator core network;

an IoT platform: one of the cores of the Internet of things management platform;

a server: a business server, a back-end service, which is the second core;

web page: and the management platform provides a visual management interface.

Table 2 is a data lumen detail table of the cloud multi-connected management platform, as shown in the service data flow of table 2:

furthermore, at present, the demand of priority between the line controller and the line controller of the cloud multi-connected unit is also stronger and stronger, and the demand is mainly reflected in the following points:

1. at present, wire controllers of all indoor units of the air conditioner are in equal positions, and no person has higher rights;

2. for example, in a relatively large office or residence, the wired controller in the house of the administrator or parent should have a higher priority level, and may set the "operation mode" priority or the "set temperature" priority;

3. the cloud computing platform analyzes and decides which air conditioning unit needs the wire controller to be preferred through data collected by the NB-IoT internet of things management platform, and the functions are completed through the cloud multi-connected unit. Effective data collected by the internet of things management platform is calculated and decided by the cloud computing platform, the cloud computing platform sends a final instruction to the air conditioner outdoor unit, the air conditioner outdoor unit executes the final instruction calculated by the cloud and sends the final instruction to the air conditioner indoor unit and the wire controller, and finally the priority function of the wire controller is controlled.

Fig. 7 is a schematic diagram illustrating a main line controller selection process according to an embodiment of the present invention, as shown in fig. 7, after an outdoor unit and indoor units are powered on, a connection is established, the outdoor unit allocates addresses to the indoor units according to the number of the indoor units, and the addresses are respectively 1 to 64, and all of these information are uploaded to a cloud platform, because the communication protocol between the outdoor unit and the cloud platform has the definition in this respect, Fc (n) is also at most 64, that is, at most 64 Fc can be calculated, for example: fc (1) corresponds to the indoor unit 1, Fc (2) corresponds to the indoor unit 2, Fc (64) corresponds to the indoor unit 64, the cloud platform can calculate the Fc value of each indoor unit, through message downlink (NB-IoT network), send to the outdoor unit (UE terminal), the outdoor unit carries out the cycle judgement:

sorting by a bubbling method, and sorting indoor units corresponding to Fc from large to small, for example: fc (2) ═ 100 (top row), Fc (2) ═ 75 (immediately after the row), Fc (1) ═ 15 (last row)

The outdoor unit will use the Fc (2) indoor unit as the main indoor unit VIP, and the other indoor units as non-VIPs, and only when the VIP is switched in the period, the VIP is switched, and the switching is performed after the next calculation cycle of the cloud platform comes. The communication protocol between the outdoor unit and each indoor unit has a byte, which represents whether VIP (priority) is valid, 1 is valid, and 0 is invalid.

Fig. 8 is a schematic diagram of a control flow of a main line controller according to an embodiment of the present invention, as shown in fig. 8, a line controller with a line controller priority becomes a main line controller (VIP line controller) for controlling an indoor unit in another room, the line controller with the line controller priority is called a main line controller, the other line controllers are called sub line controllers, and the sub line controllers have functions controlled by the main line controller.

The main line controller firstly issues an hour setting instruction, clock combination is carried out on the auxiliary indoor unit and the auxiliary line controller, then a usage amount instruction is issued to the outdoor unit, the outdoor unit issues usage amount instruction broadcasting to all other auxiliary indoor units and auxiliary line controllers, and functions of all the auxiliary indoor units and the auxiliary line controllers are controlled.

Fig. 9 is a schematic diagram of a function list of cloud multi-connected unit control, as shown in fig. 9.

The invention provides a cloud multi-connected air conditioning unit and a control method thereof, aiming at solving the technical problem that a large number of air conditioning units are accessed to the Internet of things to carry out multi-unit synchronous real-time data management in the prior art and effectively solving the technical problem that the built-in computing power of an outdoor unit of the cloud multi-connected air conditioning unit is insufficient in the prior art.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides a cloud ally oneself with air conditioning unit which characterized in that includes:

at least one air conditioning unit, each said air conditioning unit comprising: at least one indoor set, at least one outdoor unit of connecting the indoor set and correspond the drive-by-wire ware that the indoor set up, the outdoor unit is configured as: data acquisition and instruction receiving, and real-time acquisition and reporting of the operating parameters of the air conditioning unit;

the cloud multi-connection management platform comprises: the cloud multi-connected management platform is configured to: performing central control and management on the air conditioning unit, receiving the operation parameters, and reporting the summary parameters;

a cloud computing platform: communicatively connecting the cloud multi-connected management platform, the cloud computing platform being configured to: completing a calculation decision based on the summary parameters, issuing an instruction to the cloud multi-connected management platform, distributing the instruction to the corresponding outdoor unit by the cloud multi-connected management platform, and completing control over the indoor unit by the outdoor unit;

the cloud multi-connected management platform comprises an internet of things management platform and a background server, the internet of things management platform is in communication connection with the outdoor unit, and the internet of things management platform is configured to: performing information interaction with the outdoor unit, receiving and managing the reported operation parameters, and outputting summary parameters; the backend server is in communication connection with the cloud computing platform and the internet of things management platform, and is configured to: performing man-machine interaction operation, and updating and maintaining a background database in real time;

the cloud computing platform is further configured to: finishing the priority decision of the line controller based on the summary parameters, issuing a priority decision instruction to the internet of things management platform, distributing the priority decision instruction to the corresponding outdoor unit by the internet of things management platform, and finishing the selection of the main line controller by the outdoor unit according to the priority decision instruction;

the cloud computing platform is further configured to:

based on a priority weight calculation model, completing the priority weight calculation of the air conditioning unit, and configuring and sending the priority weight to the Internet of things management platform; calling a database training basic priority data model, and finishing the training of the priority data model by combining the habit model data used by the user; receiving updated data sent by the Internet of things management platform to continuously improve a data model; receiving an operation instruction sent by the background server system, and sending a data model of the air conditioning unit to the background server system;

the outdoor unit includes a controller, the controller being further configured to:

the outdoor unit allocates addresses to the indoor units according to the number of the indoor units, and the cloud computing platform calculates a priority weight value of each indoor unit and sends the priority weight value to the outdoor unit; the outdoor unit circularly judges the priority weight value of each indoor unit, finds the indoor unit corresponding to the maximum value of the priority weight value and sends a starting priority instruction to the indoor unit corresponding to the maximum value of the priority weight value;

the indoor unit, further configured to:

when the starting priority command sent by the outdoor unit is received, the indoor unit becomes a main indoor unit, and other indoor units become auxiliary indoor units;

the wire controller further configured to:

and when the starting priority instruction sent by the main indoor unit is received, the wire controller becomes a main wire controller, and the other wire controllers become auxiliary wire controllers.

2. The multi-connected cloud air conditioning unit as set forth in claim 1, wherein the outdoor unit comprises:

at least one sensor configured to: collecting a plurality of operating parameters of the indoor unit in real time;

at least one communication module configured to: performing information interaction with the Internet of things management platform, uploading the operating parameters, and receiving the priority decision instruction;

at least one controller configured to: and finishing the selection of the main line controller according to the decision instruction.

3. The cloud multi-connected air conditioning unit as recited in claim 2, wherein the internet of things management platform comprises:

at least one interface module further configured to: maintaining the access state of the outdoor unit in real time;

receiving a priority decision instruction issued by the cloud computing platform and issuing the priority decision instruction to the corresponding outdoor unit;

a service gateway module further configured to:

receiving the operation parameters sent by the outdoor unit, and reporting the operation parameters to the cloud computing platform in a convergence management manner;

and receiving an operation instruction sent by the background server system, and sending the operation parameters of the air conditioning unit to the background server system.

4. The cloud multi-connected air conditioning unit as claimed in claim 3, wherein the main line controller is further configured to:

and the main line controller informs the outdoor unit through the corresponding main indoor unit, sends a main control instruction, and broadcasts and sends the main control instruction to the auxiliary indoor unit and the auxiliary line controller so as to control the functions of other line controllers and the indoor units.

5. A control method of a cloud multi-connected air conditioning unit, which is applied to the cloud multi-connected air conditioning unit as claimed in any one of claims 1 to 4, wherein the method comprises the following steps:

data acquisition and instruction receiving are carried out through the outdoor unit, and the operating parameters of the air conditioning unit are acquired and reported in real time;

the air conditioning unit is centrally controlled and managed through the cloud multi-connected management platform, the operation parameters are received, and the operation parameters are reported;

completing a calculation decision based on the summary parameters through the cloud computing platform, issuing an instruction to the cloud multi-connected management platform, distributing the instruction to the corresponding outdoor unit through the cloud multi-connected management platform system, and completing control over the indoor units through the outdoor unit;

the cloud computing platform completes the priority decision of the line controller based on the summary parameters, a priority decision instruction is issued to the internet of things management platform, the internet of things management platform distributes the priority decision instruction to the corresponding outdoor unit, and the outdoor unit completes the selection of the main line controller according to the priority decision instruction;

the internet of things management platform performs information interaction with the outdoor unit, receives and manages the reported operation parameters, and outputs summary parameters; the background server performs man-machine interaction operation and updates and maintains a background database in real time;

the cloud computing platform completes the priority weight computation of the air conditioning unit based on a priority weight computation model, and distributes the priority weight configuration to the internet of things management platform; calling a database training basic priority data model, and finishing the training of the priority data model by combining the habit model data used by the user; receiving updated data sent by the Internet of things management platform to continuously perfect a data model; receiving an operation instruction sent by the background server system, and sending a data model of the air conditioning unit to the background server system;

when the indoor unit receives the starting priority command sent by the outdoor unit, the indoor unit becomes a main indoor unit, and other indoor units become auxiliary indoor units;

and when the wire controller receives the starting priority instruction sent by the main indoor unit, the wire controller becomes a main wire controller, and other wire controllers become auxiliary wire controllers.

6. The method for controlling the cloud multi-connected air conditioning unit according to claim 5, wherein the step of the cloud multi-connected management platform performing central control and management on the air conditioning unit and reporting the operation parameters further comprises:

the Internet of things management platform carries out information interaction with the outdoor unit, receives and manages the reported operation parameters, and outputs summary parameters;

7. The method for controlling the cloud multi-connected air conditioning unit according to claim 6, wherein the cloud computing platform completes a computing decision based on the summary parameters, issues an instruction to the cloud multi-connected management platform, distributes the instruction to the corresponding outdoor unit by the cloud multi-connected management platform system, and completes the control of the indoor unit by the outdoor unit, and the method further comprises the following steps:

and finishing the priority decision of the line controller based on the summary parameters, issuing a priority decision instruction to the internet of things management platform, distributing the priority decision instruction to the corresponding outdoor unit by the internet of things management platform, and finishing the selection of the main line controller by the outdoor unit according to the priority decision instruction.