CN111503855B - Control system and control method of multi-split air conditioner - Google Patents
Control system and control method of multi-split air conditioner Download PDFInfo
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- CN111503855B CN111503855B CN202010357379.7A CN202010357379A CN111503855B CN 111503855 B CN111503855 B CN 111503855B CN 202010357379 A CN202010357379 A CN 202010357379A CN 111503855 B CN111503855 B CN 111503855B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
- F24F11/58—Remote control using Internet communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2803—Home automation networks
- H04L12/2816—Controlling appliance services of a home automation network by calling their functionalities
- H04L12/282—Controlling appliance services of a home automation network by calling their functionalities based on user interaction within the home
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
- H04L67/125—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks involving control of end-device applications over a network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2803—Home automation networks
- H04L2012/284—Home automation networks characterised by the type of medium used
- H04L2012/2841—Wireless
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2803—Home automation networks
- H04L2012/2847—Home automation networks characterised by the type of home appliance used
- H04L2012/285—Generic home appliances, e.g. refrigerators
Abstract
The invention provides a control system and a control method of a multi-split air conditioner. The control system of the multi-split air conditioner comprises a mobile terminal, a cloud server, a wireless transmission module, an outdoor unit and a plurality of indoor units, wherein the cloud server is used for sending a control instruction to the wireless transmission module when the mobile terminal initiates the control instruction aiming at a first indoor unit; the outdoor unit is used for polling the states of the plurality of indoor units and the wireless transmission module according to a set state polling rule, receiving a control instruction when the wireless transmission module is polled, and sending the control instruction to the first indoor unit when the first indoor unit is polled; the wireless transmission module determines that the control instruction sent by the cloud server exists when the wireless transmission module is polled by the outdoor unit, sends the control instruction to the outdoor unit, and sends the state change information uploaded by the second indoor unit to the cloud server. The scheme of the invention can reduce the using number of the wireless transmission modules and reduce the manufacturing cost of the multi-split air conditioner.
Description
Technical Field
The invention relates to the technical field of remote control of multi-split air conditioners, in particular to a control system and a control method of a multi-split air conditioner.
Background
Along with the popularization of the application of the APP control technology in the intelligent household appliance industry, more and more multi-split air conditioners start to adopt APP software to carry out remote control. In order to realize remote control, every indoor set all is provided with a wireless transmission module, and APP software carries out the net binding back of joining in marriage one by one through the indoor set that corresponds with each wireless transmission module, and APP software can carry out data transmission with corresponding indoor set through the wireless transmission module that the indoor set corresponds to can realize APP software to the remote control of a plurality of indoor sets.
However, the wireless transmission module is high in material cost and installation cost, and the wireless transmission module is arranged in each indoor unit, so that the overall cost is high when the number of the indoor units in the multi-split air conditioner is large.
Disclosure of Invention
The embodiment of the invention provides a control system and a control method of a multi-split air conditioner, which can reduce the using number of wireless transmission modules and reduce the manufacturing cost of the multi-split air conditioner.
In a first aspect, an embodiment of the present invention provides a control system for a multi-split air conditioner, including:
the system comprises a mobile terminal, a cloud server, a wireless transmission module, an outdoor unit and a plurality of indoor units; the wireless transmission module, the outdoor unit and the indoor units are all connected to the same control bus;
the mobile terminal is wirelessly connected with the cloud server and used for performing data interaction with the indoor unit and the outdoor unit through the cloud server;
the cloud server is used for sending the control instruction to the wireless transmission module and receiving state change information of a second indoor unit returned by the wireless transmission module when the mobile terminal initiates the control instruction for the first indoor unit;
the outdoor unit is used for polling the states of the indoor units and the wireless transmission module according to a set state polling rule, receiving the control instruction when the wireless transmission module is polled, and sending the control instruction to the first indoor unit when the first indoor unit is polled;
the first indoor unit is used for executing the control instruction when receiving the control instruction;
each indoor unit in the indoor units determines that the state of the indoor unit changes when the indoor unit is polled by the outdoor unit, determines a second indoor unit with the changed state, and uploads state change information to the control bus;
the wireless transmission module determines that the control instruction sent by the cloud server exists when the wireless transmission module is polled by the outdoor unit, sends the control instruction to the outdoor unit through the control bus, and sends the state change information uploaded by the second indoor unit to the cloud server when the state change information uploaded by the second indoor unit is received on the control bus.
In one possible design, when the outdoor unit performs status polling on the indoor units and the wireless transmission module according to a set status polling rule, the method includes:
the outdoor unit performs state polling once every set time period, and the outdoor unit sequentially performs state polling on the indoor units in sequence;
after polling a set number of indoor units, performing state polling on the wireless transmission module for one time;
and determining the process of polling the wireless transmission module once after polling a set number of indoor units as a wheel-shaped state polling process, and circularly executing each wheel-shaped state polling process by the outdoor unit.
In one possible design, the wireless transmission module is status polled two adjacent times within a time interval of no more than 1 s.
In a possible design, the outdoor unit is further configured to upload state change information to the control bus when it is determined that a state of the outdoor unit changes;
the wireless transmission module is further configured to receive state change information uploaded by the outdoor unit on the control bus, and send the state change information uploaded by the outdoor unit to the cloud server.
In one possible design, the wireless transmission module is further configured to obtain the device information of each indoor unit through the control bus, generate registration information corresponding to the corresponding indoor unit according to the device information of each indoor unit, and send the registration information corresponding to each indoor unit to the cloud server;
the mobile terminal is further used for sending a binding request to the cloud server, and the binding request is used for establishing a binding relationship with the indoor units;
and the cloud server is also used for receiving and storing the registration information of each indoor unit, and establishing a binding relationship between the mobile terminal and the indoor units according to the binding request and the registration information of each indoor unit.
In one possible design, the registration information includes at least: the product serial number of the wireless transmission module, the identity number of the indoor unit, the bus address and the model number.
In a second aspect, a method for controlling a multi-split air conditioner based on the control system of the multi-split air conditioner includes:
the mobile terminal initiates a control instruction aiming at a first indoor unit to a server;
the cloud server sends the control instruction to the wireless transmission module;
the outdoor unit polls the indoor units and the wireless transmission modules according to a set status polling rule, when the wireless transmission modules are polled, the wireless transmission modules determine that the control instructions sent by the cloud server exist, the control instructions are sent to the outdoor unit through the control bus, the outdoor unit receives the control instructions, and when the first indoor unit is polled, the control instructions are sent to the first indoor unit;
when the first indoor unit receives the control instruction, executing the control instruction;
each indoor unit in the indoor units determines that the state of the indoor unit changes when the indoor unit is polled by the outdoor unit, determines a second indoor unit with the changed state, and uploads state change information to the control bus;
and when the wireless transmission module receives the state change information uploaded by the second indoor unit on the control bus, the wireless transmission module sends the state change information uploaded by the second indoor unit to the cloud server.
In one possible design, the outdoor unit performs status polling on the indoor units and the wireless transmission module according to a set status polling rule, including:
the outdoor unit performs state polling once every set time period, and the outdoor unit sequentially performs state polling on the indoor units in sequence;
after polling a set number of indoor units, performing state polling on the wireless transmission module for one time;
and determining the process of polling the wireless transmission module once after polling a set number of indoor units as a wheel-shaped state polling process, and circularly executing each wheel-shaped state polling process by the outdoor unit.
In one possible design, the control method further includes:
when the outdoor unit determines that the state of the outdoor unit changes, the outdoor unit uploads state change information to the control bus;
when the wireless transmission module receives the state change information uploaded by the outdoor unit on the control bus, the wireless transmission module sends the state change information uploaded by the outdoor unit to the cloud server
In one possible design, before the mobile terminal initiates a control instruction for the first indoor unit to the server, the method further includes:
the wireless transmission module acquires the equipment information of each indoor unit through the control bus, generates registration information corresponding to the corresponding indoor unit according to the equipment information of each indoor unit, and sends the registration information corresponding to each indoor unit to the cloud server;
the mobile terminal sends a binding request to the cloud server, and the binding request is used for establishing a binding relationship with the indoor units;
and the cloud server receives and stores the registration information of each indoor unit, and establishes a binding relationship between the mobile terminal and the indoor units according to the binding request and the registration information of each indoor unit.
According to the scheme, the control system and the control method of the multi-split air conditioner provided by the invention only need to arrange one wireless transmission module in the multi-split air conditioner, the wireless transmission module, the outdoor unit and the indoor units are all connected to the same control bus, the outdoor unit performs state polling on the indoor units and the wireless transmission module according to the set state polling rule, when the outdoor unit polls the wireless transmission module, the wireless transmission module performs data interaction with the outdoor unit, the data interaction is carried out with the indoor unit, so that the data interaction between the wireless transmission module and the indoor unit can be realized by utilizing the outdoor unit, and then realize the data interaction of cloud server through wireless transmission module and indoor set, off-premises station, so reduced the use quantity of wireless transmission module in the multi-connected air conditioner, reduced the manufacturing cost of multi-connected air conditioner.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is an architecture diagram of a control system of a multi-split air conditioner according to an embodiment of the present invention;
fig. 2 is a flowchart of a method for controlling a multi-split air conditioner according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating a polling rule for setting status of an outdoor unit according to an embodiment of the present invention;
fig. 4 is a flowchart of a method for binding an indoor unit and a mobile terminal according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer and more complete, the technical solutions in the embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention, and based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides a control system of a multi-split air conditioner, including:
the system comprises a mobile terminal 11, a cloud server 12, a wireless transmission module 13, an outdoor unit 14 and a plurality of indoor units 15; the wireless transmission module 13, the outdoor unit 14 and the indoor units 15 are all connected to the same control bus 16;
the mobile terminal 11 is wirelessly connected with the cloud server 12 and used for performing data interaction with the indoor unit 15 and the outdoor unit 14 through the cloud server 12;
the cloud server 12 is configured to send a control instruction to the wireless transmission module 13 when the mobile terminal 11 initiates the control instruction for the first indoor unit, and receive state change information of the second indoor unit returned by the wireless transmission module 13;
the outdoor unit 14 is used for performing status polling on the plurality of indoor units 15 and the wireless transmission module 13 according to a set status polling rule, receiving a control instruction when polling the wireless transmission module 13, and sending the control instruction to a first indoor unit when polling the first indoor unit;
the first indoor unit is used for executing the control instruction when receiving the control instruction;
each indoor unit 15 of the plurality of indoor units 15 determines that its own state changes when polled by the outdoor unit 14, determines a second indoor unit whose own state changes, and uploads state change information to the control bus 16;
the wireless transmission module 13 determines that there is a control instruction sent by the cloud server 12 when being polled by the outdoor unit 14, sends the control instruction to the outdoor unit 14 through the control bus 16, and sends state change information uploaded by a second indoor unit to the cloud server 12 when receiving the state change information uploaded by the second indoor unit on the control bus 16.
In the embodiment of the invention, the control system of the multi-split air conditioner only needs to set one wireless transmission module 13 in the multi-split air conditioner, the wireless transmission module 13, the outdoor unit 14 and the indoor units 15 are all connected to the same control bus 16, the outdoor unit 14 performs state polling on the indoor units 15 and the wireless transmission module 13 according to a set state polling rule, when the outdoor unit 14 polls the wireless transmission module 13, the wireless transmission module 13 performs data interaction, when the outdoor unit 14 polls the indoor units 15, the indoor units 15 perform data interaction, so that the outdoor unit 14 can be used for realizing the data interaction between the wireless transmission module 13 and the indoor units 15, further the cloud server 12 realizes the data interaction between the wireless transmission module 13 and the indoor units 15 and the outdoor unit 14, and thus the use number of the wireless transmission modules in the multi-split air conditioner is reduced, the manufacturing cost of the multi-split air conditioner is reduced.
As described in the background art, in the existing solutions, each indoor unit is provided with a wireless transmission module, and when APP software of a mobile terminal initiates a control instruction for the indoor unit or performs data interaction between a server and the indoor unit, communication with the indoor unit can be achieved only by communicating with the wireless communication module corresponding to the indoor unit through the server. In the embodiment of the present invention, after the number of wireless transmission modules is reduced to only one, one wireless transmission module 13 corresponds to a plurality of indoor units 15, when the APP software of the mobile terminal 11 initiates a control instruction for an indoor unit 15, it is necessary to know which indoor unit 15 the control instruction is sent to, and the wireless transmission module 13 serves as a relay module and has no analysis function, so that the outdoor unit 14 needs to analyze data sent by the wireless transmission module 13 to determine which indoor unit 15 the control instruction is initiated for, and further forward the control instruction to the indoor unit 15, so that the control instruction initiated by the APP software of the mobile terminal 11 can still be transmitted to the corresponding indoor unit 15.
In this embodiment, after the state of the indoor unit 15 changes, it is necessary to report the state change information to the cloud server 12 in time so that the cloud server 12 can know the change. Therefore, the outdoor unit 14 is required to continuously poll the status of the indoor units 15, that is, the outdoor unit 14 sends a status change report command to each indoor unit 15 one by one, and when the indoor unit 15 receives the status change report command, if the self-state distance is not changed when being polled by the indoor unit 15 last time, the indoor unit 15 does not upload information to the control bus 16, if the self-state distance is determined to be changed when being polled by the indoor unit 15 last time, the indoor unit 15 which is determined to be changed in self-state is called a second indoor unit, the second indoor unit uploads state change information to the control bus 16, the wireless transmission module 13 can receive the state change information uploaded by the second indoor unit through the control bus 16, and the state change information uploaded by the second indoor unit is sent to the cloud server 12, so that the cloud server 12 can obtain the state change information of the second indoor unit in time.
The state change of the indoor unit 15 may be caused by the indoor unit 15 executing a control command, or may be caused by a failure of the indoor unit 15 during its operation. After receiving the state change information of the second indoor unit, the cloud server 12 may store and/or process the state change information, and when the mobile terminal 11 requests the cloud server 12 to know the state of the indoor unit 15, the cloud server 12 may send the state change information and/or the processed state change information to the mobile terminal 11 for the user to check. The state change information includes, but is not limited to, start, stop, operation mode, wind speed, temperature, timing, wind sweep, lighting, and/or trouble light information of the indoor unit 15.
It should be noted that, the first indoor unit receives the control instruction sent by the outdoor unit 14 and also receives the state change reporting instruction sent by the outdoor unit 14. At this time, the processing procedure of the first indoor unit may include the following two types:
the first method comprises the following steps: the first indoor unit responds to the state change reporting instruction firstly and then responds to the control instruction;
and the second method comprises the following steps: the first indoor unit responds to the control command first and then responds to the state change reporting command.
If the state of the first indoor unit is not changed before the first indoor unit is polled by the outdoor unit 14 in the current state polling process, in the first processing process, if the state change reporting instruction responded by the first indoor unit is that the state is not changed, the first indoor unit does not upload any information to the control bus 16, and then the first indoor unit responds to the control instruction and executes corresponding operation according to the control instruction. In the second processing procedure, the first indoor unit first responds to the control instruction, and executes corresponding operations according to the control instruction, and after executing the corresponding operations, the state of the first indoor unit inevitably changes, and then responds to the state change reporting instruction, and the first indoor unit uploads the state change information of the first indoor unit to the control bus 16.
The second indoor unit may correspond to one indoor unit or a plurality of indoor units. When the first indoor unit adopts the first processing procedure, the second indoor unit does not include the first indoor unit (that is, when the first indoor unit is polled by the outdoor unit 14 in the next status polling procedure, the second indoor unit includes the first indoor unit), and when the first indoor unit adopts the second processing procedure, the second indoor unit includes the first indoor unit.
In some embodiments, the control command may include indoor unit information and control information. After the outdoor unit 14 analyzes the control command, the indoor unit 15 to be controlled is determined according to the analyzed indoor unit information, and the analyzed control information is sent to the corresponding indoor unit 15, so that the indoor unit 15 executes the corresponding operation according to the control information. Wherein, the control instruction can control at least one indoor unit at the same time. The control information includes, but is not limited to, start, stop, mode of operation, wind speed, temperature, timing, wind sweep, and/or lighting, etc.
In an embodiment of the present invention, the wireless transmission module 13 may include at least one of a 3G module, a 4G module, a 5G module, and a WIFI module; when wireless transmission module 13 includes the WIFI module, still be connected with wireless router between wireless transmission module 13 and the cloud server 12, so can realize mobile terminal 11 to the remote control of multi-split air conditioner.
In one embodiment of the present invention, the control bus 16 may specifically be a 1192 bus, a HBS (homebus system), or an RS485 (recommended standard bus) bus. Preferably, the control bus is a 1192 bus, wherein 1192 is a chip conforming to the home data bus standard and having a function of receiving and transmitting data.
Since the wireless transmission module 13, the outdoor unit 14 and the indoor units 15 are all connected to the same control bus 16, in order to prevent the confusion of data transmission on the control bus 16, in an embodiment of the present invention, the outdoor unit 14 needs to perform status polling on the indoor units 15 and the wireless transmission module 13 according to a set status polling rule. The state polling refers to the outdoor unit 14 sending a state change reporting instruction to the indoor unit 15 and the wireless transmission module 13, and only when the indoor unit 15 and the wireless transmission module 13 are polled, the indoor unit 15 may transmit data to the control bus 16 (where the indoor unit 15 uploads the state change information when the state of the indoor unit changes, and the wireless transmission module 13 uploads the state change information when receiving the state reporting instruction sent by the cloud server 12), otherwise, the indoor unit 15 does not actively transmit data to the control bus 16. Specifically, the outdoor unit 14 performs status polling on a plurality of indoor units 15 and the wireless transmission module 13 according to a set status polling rule, which may include at least one of the following modes:
the outdoor unit 14 performs status polling every set time period, and the outdoor unit 14 sequentially performs status polling on the indoor units 15 in sequence;
after polling a set number of indoor units 15, performing state polling on the wireless transmission module 13 once;
after polling a set number of indoor units 15 and performing one-time state polling on the wireless transmission module 13, determining the process as a one-wheel state polling process, and circularly executing each wheel state polling process by the outdoor unit 14.
In this embodiment, the time interval between two adjacent status polls of the wtru 13 is determined by the set number and the set time period, wherein the time interval between two adjacent status polls of the wtru 13 is equal to (the set number +1) × the set time period. For example, the set time period is 200ms, and the set number is 3, that is, the outdoor unit performs one polling on the wireless transmission module 13 after polling 3 indoor units. Specifically, the outdoor unit 14 polls the first indoor unit at an interval of 200ms, polls the second indoor unit at an interval of 200ms, polls the third indoor unit at an interval of 200ms, and polls the wireless transmission module 13 at an interval of 200ms, that is, a status polling process takes 800 ms.
Since the wireless transmission module 13 is a module for forwarding data, if the control command is sent to the wireless transmission module 13, the wireless transmission module 13 fails to send the control command for a long time, which may damage or lose the control command. Therefore, in one embodiment of the present invention, the time interval between two adjacent status polls of the wireless transmission module 13 does not exceed 1 s.
The status polling procedure of the outdoor unit 14 will be described by taking an example in which the set number is 3 and each of the multi-split air conditioners includes 2 indoor units and 9 indoor units.
When the multi-split air conditioner comprises 2 indoor units, namely an indoor unit 1 and an indoor unit 2, the polling process comprises the following steps: polling indoor units 1 → polling indoor units 2 → polling indoor units 1 → polling wireless transmission modules → polling indoor units 1 … ….
When the multi-split air conditioner comprises 9 indoor units, namely an indoor unit 1 and an indoor unit 2 … …, the polling process comprises the following steps: polling indoor units 1 → polling indoor units 2 → polling indoor units 3 → polling wireless transmission modules → polling indoor units 4 → polling indoor units 5 → polling indoor units 6 → polling wireless transmission modules → polling indoor units 7 → polling indoor units 8 → polling indoor units 9 → polling wireless transmission modules → polling indoor units 1 … ….
According to the exemplary parameters, when the outdoor unit 14 polls the indoor unit 15 and the wireless transmission module 13 according to the set status polling rule, it may complete a polling operation on the wireless transmission module 13 after 800 ms; when the number of the indoor units is large, if the outdoor unit 14 polls all the indoor units 15 and then polls the wireless transmission module 13 once, it may be necessary for the outdoor unit 14 to poll the wireless transmission module 13 once after a long time.
In an embodiment of the present invention, when the state of the outdoor unit 14 also changes, for example, when the outdoor unit 14 fails, the failure information needs to be reported to the cloud server 12, so that the cloud server 12 can remind the user to perform corresponding maintenance according to the failure information. When the outdoor unit 14 determines that the state of the outdoor unit 14 changes, the outdoor unit 14 may upload the state change information to the control bus 16; the wireless transmission module 13 may receive the state change information uploaded by the outdoor unit 14 on the control bus 16, and send the state change information uploaded by the outdoor unit 14 to the cloud server 12.
In this embodiment, since the data uploaded to the control bus 16 carries the identifier of the sender, after the wireless communication module 13 forwards the status change information received from the control bus 16 to the cloud server 12, the cloud server 12 can accurately determine whether the status change information corresponds to the indoor unit 15 or the outdoor unit 14. The state change information of the outdoor unit 14 may include, but is not limited to, temperature, humidity, and/or fault information.
By storing and/or processing the state change information of the indoor unit 15 and the outdoor unit 14, when the mobile terminal 11 requests the cloud server 12 to know the current state of the indoor unit or the outdoor unit, the cloud server 12 may send the current state of the indoor unit or the outdoor unit to the mobile terminal 11 according to the stored and/or processed state change information, so that the user can view the current state of the indoor unit or the outdoor unit. And when the state change information carries fault information, the state change information can help the user to feed back to maintenance personnel in time so as to obtain timely maintenance.
In an embodiment of the present invention, before the mobile terminal 11 controls the indoor units 15 in the multi-split air conditioner, a binding relationship between the mobile terminal 11 and each indoor unit 15 in the multi-split air conditioner needs to be established. Specifically, the wireless transmission module 13 is further configured to obtain the device information of each indoor unit 15 through the control bus 16, generate registration information corresponding to the corresponding indoor unit 15 according to the device information of each indoor unit 15, and send the registration information corresponding to each indoor unit 15 to the cloud server 12; the mobile terminal 11 is further configured to send a binding request to the cloud server 12, where the binding request is used to establish a binding relationship with the indoor units 15; the cloud server 12 is further configured to receive and store the registration information of each indoor unit 15, and establish a binding relationship between the mobile terminal 11 and the indoor units 15 according to the binding request and the registration information of each indoor unit 15.
Based on the embodiment, after the mobile terminal 11 establishes the binding relationship with the indoor units 15 through the cloud server 12, each mobile terminal 11 may remotely control each indoor unit 15 of the indoor units 15 in a wireless manner.
In one embodiment of the present invention, the registration information may include at least: the product serial number of the wireless transmission module 13, the identity number of the indoor unit 15, the bus address and the model number. Since information such as the product serial number of the wireless transmission module 13, the identification number of the indoor unit 15, and the bus address is unique, such information is indispensable as registration information. The cloud server 12 may establish a mapping relationship table between the registration information and the IP address of each mobile terminal 11, so as to determine the binding relationship between the mobile terminal 11 and each indoor unit 15. When one or some indoor units 15 are replaced, the mapping relationship table between the newly replaced indoor unit 15 and each mobile terminal 11 may be continuously established in the cloud server 12 in the manner described above. Of course, the binding relationship between the mobile terminal 11 and one or more indoor units 15 may also be released by the user operating in the APP software of the mobile terminal 11.
In this embodiment, the mobile terminal 11 may be at least a terminal device that is convenient to move and carry, such as a smart phone, a tablet computer, and a notebook computer, and the control system of the multi-split air conditioner provided by the present invention may also include a plurality of mobile terminals 11, and it is only necessary that the plurality of mobile terminals 11 all establish a binding relationship with the indoor unit 15 in the multi-split air conditioner through the cloud server 12. That is to say, each mobile terminal 11 may be connected to the cloud server 12 in a wireless manner, and obtain current state information of each indoor unit from the cloud server 12, or send a control instruction for the first indoor unit to the cloud server 12 through APP software, so that each mobile terminal 11 can remotely control the multi-split air conditioner.
In addition, except that the mobile terminal 11 sends a control instruction to the wireless transmission module 13, and the wireless transmission module 13 responds accordingly according to the received instruction sent by the mobile terminal 11, the state change information of the second indoor unit and the outdoor unit 14 can be uploaded to the control bus 16 at set time intervals, and the wireless transmission module 13 can push the state change information of the second indoor unit and the outdoor unit 14 according to the recorded IP address of each mobile terminal 11, so that each mobile terminal 11 can synchronously acquire the state change information of the second indoor unit and the outdoor unit 14, and data consistency when the multiple mobile terminals perform remote control is ensured, thereby implementing multi-screen interactive control of the multiple mobile terminals.
In addition, as shown in fig. 2, an embodiment of the present invention further provides a method for controlling a multi-split air conditioner based on the control system of the multi-split air conditioner, where the method includes:
101. the mobile terminal initiates a control instruction for the first indoor unit to the server;
the control command may include indoor unit information and control information. And after the outdoor unit analyzes the control command, the indoor unit to be controlled is determined according to the analyzed indoor unit information, and the analyzed control information is sent to the first indoor unit, so that the first indoor unit executes corresponding operation according to the control information. Wherein, the control instruction can control at least one indoor unit at the same time. The control information includes, but is not limited to, start, stop, mode of operation, wind speed, temperature, timing, wind sweep, and/or lighting, etc.
102. The cloud server sends the control instruction to the wireless transmission module;
the wireless transmission module at least comprises one of a 3G module, a 4G module, a 5G module and a WIFI module; when wireless transmission module includes the WIFI module, still be connected with wireless router between wireless transmission module and the cloud ware, so can realize the remote control of mobile terminal to the multi-split air conditioner.
103. The outdoor unit conducts state polling on the indoor units and the wireless transmission modules according to a set state polling rule, when the wireless transmission modules are polled, the wireless transmission modules determine that control instructions sent by a cloud server exist in the outdoor unit, the control instructions are sent to the outdoor unit through a control bus, the outdoor unit receives the control instructions, and when a first indoor unit is polled, the control instructions are sent to the first indoor unit;
since the wireless transmission module, the outdoor unit and the indoor units are all connected to the same control bus, in order to prevent the confusion of data transmission on the control bus, in one embodiment of the present invention, the outdoor unit needs to perform status polling on the indoor units and the wireless transmission module according to a set status polling rule. The state polling refers to that the outdoor unit sends a state change reporting instruction to the indoor unit and the wireless transmission module, the indoor unit may transmit data to the control bus only when the indoor unit and the wireless transmission module are polled (wherein the indoor unit uploads the state change information when the state of the indoor unit changes, and the wireless transmission module uploads the state change information when receiving the state reporting instruction sent by the cloud server), and otherwise, the indoor unit does not actively transmit data to the control bus.
104. When the first indoor unit receives the control instruction, executing the control instruction;
105. each indoor unit in the indoor units determines that the state of the indoor unit changes when the indoor unit is polled by the outdoor unit, determines a second indoor unit of which the state of the indoor unit changes, and uploads state change information to the control bus;
the state change of the indoor unit can be generated after the indoor unit executes a control instruction, or can be generated after the indoor unit breaks down in the running process. The cloud server can store and/or process the state change information of the second indoor unit after receiving the state change information, and when the mobile terminal requests the cloud server to acquire the state of the indoor unit, the cloud server can send the state change information and/or the processed state change information to the mobile terminal so that a user can check the state change information and/or the processed state change information. The state change information includes, but is not limited to, start, stop, operation mode, wind speed, temperature, timing, wind sweep, light and/or fault light information of the indoor unit.
106. And when the wireless transmission module receives the state change information uploaded by the second indoor unit on the control bus, the wireless transmission module sends the state change information uploaded by the second indoor unit to the cloud server.
In the embodiment of the invention, the control method of the multi-split air conditioner only needs to arrange one wireless transmission module in the multi-split air conditioner, the wireless transmission module, the outdoor unit and the indoor units are all connected to the same control bus, the outdoor unit performs state polling on the indoor units and the wireless transmission module according to the set state polling rule, when the outdoor unit polls the wireless transmission module, the outdoor unit performs data interaction with the wireless transmission module, and when the outdoor unit polls the indoor unit, the outdoor unit performs data interaction with the indoor units, so that the data interaction between the wireless transmission module and the indoor units can be realized by using the outdoor unit, and further the data interaction between the cloud server and the indoor units and the outdoor unit through the wireless transmission module is realized, the using number of the wireless transmission module in the multi-split air conditioner is reduced, and the manufacturing cost of the multi-split.
In some embodiments, in the method for the outdoor unit to perform status polling on the indoor units and the wireless transmission modules according to the set status polling rule shown in fig. 1, the status polling may be performed on the indoor units and the wireless transmission modules at least in one of the following manners. As shown in fig. 2, the set status polling rule may include the following steps:
201. the outdoor unit performs state polling once every set time period, and the outdoor unit sequentially performs state polling on the indoor units in sequence;
202. after polling a set number of indoor units, performing state polling on the wireless transmission module for one time;
203. and determining the process of polling the wireless transmission module once after polling the set number of indoor units as a wheel-shaped state polling process, and circularly executing each wheel-shaped state polling process by the outdoor unit.
In this embodiment, the time interval between two adjacent status polls of the wtru is determined by the set number and the set time period, wherein the time interval between two adjacent status polls of the wtru is equal to (the set number +1) × the set time period. For example, the set time period is 200ms, and the set number is 3, that is, the outdoor unit performs one polling on the wireless transmission module after polling 3 indoor units. Specifically, the outdoor unit polls a first indoor unit, polls a second indoor unit after an interval of 200ms, polls a third indoor unit after an interval of 200ms, and polls the wireless transmission module at an interval of 200ms, namely, the time required for a state polling process is 800 ms.
In some embodiments, the control method further includes:
when the outdoor unit determines that the state of the outdoor unit changes, the outdoor unit uploads state change information to a control bus;
when the wireless transmission module receives the state change information uploaded by the outdoor unit on the control bus, the state change information uploaded by the outdoor unit is sent to the cloud server.
In an embodiment of the present invention, when the outdoor unit has a status change, for example, the outdoor unit has a fault, the fault information needs to be reported to the cloud server, so that the cloud server can remind the user to perform corresponding maintenance according to the fault information.
In some embodiments, as shown in fig. 4, before the mobile terminal initiates a control instruction for the first indoor unit to the server, the method further includes:
301. the wireless transmission module acquires the equipment information of each indoor unit through the control bus, generates registration information corresponding to the corresponding indoor unit according to the equipment information of each indoor unit, and sends the registration information corresponding to each indoor unit to the cloud server;
the registration information may include at least: the product serial number of the wireless transmission module, the identity number of the indoor unit, the bus address and the model number.
302. The mobile terminal sends a binding request to the cloud server, and the binding request is used for establishing binding relations with the indoor units;
the cloud server can establish a mapping relation table between the registration information and the IP addresses of the mobile terminals, so that the binding relation between the mobile terminals and each indoor unit is determined.
303. And the cloud server receives and stores the registration information of each indoor unit, and establishes a binding relationship between the mobile terminal and the indoor units according to the binding request and the registration information of each indoor unit.
After the mobile terminal establishes a binding relationship with the indoor units through the cloud server, each mobile terminal can remotely control each indoor unit in the indoor units in a wireless mode.
It should be understood that the illustrated structure of the embodiment of the present invention does not form a specific limitation on the control system of the multi-split air conditioner. In other embodiments of the present invention, the control system of the multi-split air conditioner may include more or fewer components than those shown, or combine some components, or split some components, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.
It is to be understood that some or all of the steps or operations in the above-described embodiments are merely examples, and other operations or variations of various operations may be performed by the embodiments of the present application. Further, the various steps may be performed in a different order presented in the above-described embodiments, and it is possible that not all of the operations in the above-described embodiments are performed.
It should be noted that not all steps and modules in the above flows and system structure diagrams are necessary, and some steps or modules may be omitted according to actual needs. The execution order of the steps is not fixed and can be adjusted as required. The system structure described in the above embodiments may be a physical structure or a logical structure, that is, some modules may be implemented by the same physical entity, or some modules may be implemented by a plurality of physical entities, or some components in a plurality of independent devices may be implemented together.
In the above embodiments, the hardware unit may be implemented mechanically or electrically. For example, a hardware element may comprise permanently dedicated circuitry or logic (such as a dedicated processor, FPGA or ASIC) to perform the corresponding operations. The hardware elements may also comprise programmable logic or circuitry, such as a general purpose processor or other programmable processor, that may be temporarily configured by software to perform the corresponding operations. The specific implementation (mechanical, or dedicated permanent, or temporarily set) may be determined based on cost and time considerations.
While the invention has been shown and described in detail in the drawings and in the preferred embodiments, it is not intended to limit the invention to the embodiments disclosed, and it will be apparent to those skilled in the art that various combinations of the code auditing means in the various embodiments described above may be used to obtain further embodiments of the invention, which are also within the scope of the invention.
Claims (8)
1. A control system of a multi-split air conditioner, comprising:
the system comprises a mobile terminal, a cloud server, a wireless transmission module, an outdoor unit and a plurality of indoor units; the wireless transmission module, the outdoor unit and the indoor units are all connected to the same control bus;
the mobile terminal is wirelessly connected with the cloud server and used for performing data interaction with the indoor unit and the outdoor unit through the cloud server;
the cloud server is used for sending the control instruction to the wireless transmission module and receiving state change information of a second indoor unit returned by the wireless transmission module when the mobile terminal initiates the control instruction for the first indoor unit;
the outdoor unit is used for polling the states of the indoor units and the wireless transmission module according to a set state polling rule, receiving the control instruction when the wireless transmission module is polled, and sending the control instruction to the first indoor unit when the first indoor unit is polled;
the first indoor unit is used for executing the control instruction when receiving the control instruction;
each indoor unit in the indoor units determines that the state of the indoor unit changes when the indoor unit is polled by the outdoor unit, determines a second indoor unit with the changed state, and uploads state change information to the control bus;
the wireless transmission module determines that the control instruction sent by the cloud server exists when the wireless transmission module is polled by the outdoor unit, sends the control instruction to the outdoor unit through the control bus, and sends the state change information uploaded by the second indoor unit to the cloud server when the state change information uploaded by the second indoor unit is received on the control bus;
when the outdoor unit performs status polling on the indoor units and the wireless transmission module according to a set status polling rule, the method comprises the following steps:
the outdoor unit performs state polling once every set time period, and the outdoor unit sequentially performs state polling on the indoor units in sequence;
after polling a set number of indoor units, performing state polling on the wireless transmission module for one time;
determining the process of polling the wireless transmission module for one state polling after polling a set number of indoor units as a wheel-shaped state polling process, and circularly executing each wheel-shaped state polling process by the outdoor unit;
the time interval between two adjacent status polling of the wireless transmission module is not more than 1 s.
2. The control system of a multi-split air conditioner as set forth in claim 1,
the outdoor unit is also used for uploading state change information to the control bus when the state of the outdoor unit is determined to change;
the wireless transmission module is further configured to receive state change information uploaded by the outdoor unit on the control bus, and send the state change information uploaded by the outdoor unit to the cloud server.
3. A control system of a multi-split air conditioner according to any one of claims 1-2,
the wireless transmission module is further used for acquiring the equipment information of each indoor unit through the control bus, generating registration information corresponding to the corresponding indoor unit according to the equipment information of each indoor unit, and sending the registration information corresponding to each indoor unit to the cloud server;
the mobile terminal is further used for sending a binding request to the cloud server, and the binding request is used for establishing a binding relationship with the indoor units;
and the cloud server is also used for receiving and storing the registration information of each indoor unit, and establishing a binding relationship between the mobile terminal and the indoor units according to the binding request and the registration information of each indoor unit.
4. The control system of a multi-split air conditioner according to claim 3, wherein the registration information includes at least: the product serial number of the wireless transmission module, the identity number of the indoor unit, the bus address and the model number.
5. A control method of a multi-split air conditioner based on the control system of the multi-split air conditioner as set forth in any one of claims 1 to 4, comprising:
the mobile terminal initiates a control instruction aiming at a first indoor unit to a server;
the cloud server sends the control instruction to the wireless transmission module;
the outdoor unit polls the indoor units and the wireless transmission modules according to a set status polling rule, when the wireless transmission modules are polled, the wireless transmission modules determine that the control instructions sent by the cloud server exist, the control instructions are sent to the outdoor unit through the control bus, the outdoor unit receives the control instructions, and when the first indoor unit is polled, the control instructions are sent to the first indoor unit;
when the first indoor unit receives the control instruction, executing the control instruction;
each indoor unit in the indoor units determines that the state of the indoor unit changes when the indoor unit is polled by the outdoor unit, determines a second indoor unit with the changed state, and uploads state change information to the control bus;
and when the wireless transmission module receives the state change information uploaded by the second indoor unit on the control bus, the wireless transmission module sends the state change information uploaded by the second indoor unit to the cloud server.
6. The method as claimed in claim 5, wherein the outdoor unit performs status polling on the indoor units and the wireless transmission module according to a set status polling rule, comprising:
the outdoor unit performs state polling once every set time period, and the outdoor unit sequentially performs state polling on the indoor units in sequence;
after polling a set number of indoor units, performing state polling on the wireless transmission module for one time;
and determining the process of polling the wireless transmission module once after polling a set number of indoor units as a wheel-shaped state polling process, and circularly executing each wheel-shaped state polling process by the outdoor unit.
7. The control method of a multi-split air conditioner as set forth in claim 5, further comprising:
when the outdoor unit determines that the state of the outdoor unit changes, the outdoor unit uploads state change information to the control bus;
and when the wireless transmission module receives the state change information uploaded by the outdoor unit on the control bus, the wireless transmission module sends the state change information uploaded by the outdoor unit to the cloud server.
8. The method for controlling a multi-split air conditioner according to any one of claims 5 to 7, further comprising, before the mobile terminal initiates a control instruction for the first indoor unit to the server:
the wireless transmission module acquires the equipment information of each indoor unit through the control bus, generates registration information corresponding to the corresponding indoor unit according to the equipment information of each indoor unit, and sends the registration information corresponding to each indoor unit to the cloud server;
the mobile terminal sends a binding request to the cloud server, and the binding request is used for establishing a binding relationship with the indoor units;
and the cloud server receives and stores the registration information of each indoor unit, and establishes a binding relationship between the mobile terminal and the indoor units according to the binding request and the registration information of each indoor unit.
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