CN112378034A - Central air-conditioning control system and method - Google Patents
Central air-conditioning control system and method Download PDFInfo
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- CN112378034A CN112378034A CN202011184832.5A CN202011184832A CN112378034A CN 112378034 A CN112378034 A CN 112378034A CN 202011184832 A CN202011184832 A CN 202011184832A CN 112378034 A CN112378034 A CN 112378034A
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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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
- F24F11/52—Indication arrangements, e.g. displays
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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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
- F24F11/88—Electrical aspects, e.g. circuits
Abstract
The invention provides a central air-conditioning control system and a method, wherein the central air-conditioning control system comprises: the system comprises an external control terminal, a central air conditioner, a server and a narrowband Internet of things NB-IoT device; the external control terminal is used for receiving a first control instruction of a user for the central air conditioner and sending the first control instruction to the NB-IoT device through the server; the NB-IoT device is used for sending the first control instruction to the central air conditioner; the central air conditioner is used for executing corresponding actions according to the first control instruction; the NB-IoT device is also used for acquiring and storing the state information of the central air conditioner according to a preset first period, and sending target state information in at least one piece of state information to the external control terminal through the server when a preset sending condition is achieved; and the external control terminal is also used for displaying the target state information. This scheme can realize the remote control to central air conditioning.
Description
Technical Field
The invention relates to the technical field of intelligent equipment, in particular to a central air-conditioning control system and a method.
Background
The central air conditioner consists of one or more cold and heat source systems and a plurality of air conditioning systems, and can perform centralized treatment on indoor air according to various functions such as refrigeration, heating and the like so as to meet the requirement of comfort. At present, a user can only control or check the operation state of the central air conditioner in a local control or local checking mode through a local controller, and cannot remotely control the central air conditioner.
The Chinese patent application with the application number of 201810697743.7 discloses a temperature sensor based on remote monitoring of a central air conditioner, which is mainly characterized in that temperature information detected by a temperature sensing module is uploaded to a network, and a background can check the temperature information by connecting the network, but how to remotely control the central air conditioner is not disclosed.
Therefore, in view of the above disadvantages, it is desirable to provide a central air conditioner control scheme to realize remote control of a central air conditioner.
Disclosure of Invention
The invention provides a central air conditioner control system and a method, which can realize the remote control of a central air conditioner.
In a first aspect, an embodiment of the present invention provides a central air conditioning control system, including: the system comprises an external control terminal, a central air conditioner, a server and a narrowband Internet of things NB-IoT device;
the external control terminal is used for receiving a first control instruction of a user for the central air conditioner and sending the first control instruction to the NB-IoT device through the server;
the NB-IoT device is used for sending the first control instruction to the central air conditioner;
the central air conditioner is used for executing corresponding actions according to the first control instruction;
the NB-IoT device is further used for acquiring and storing the state information of the central air conditioner according to a preset first period, and sending target state information in at least one piece of state information to the external control terminal through the server when a preset sending condition is achieved;
and the external control terminal is also used for displaying the target state information.
In one possible design of the system, the system may be,
the NB-IoT device is configured to, when the preset sending condition that is achieved is executed and target state information in the at least one piece of state information is sent to the external control terminal through the server, specifically execute:
and according to a preset second period, acquiring state information with the shortest time interval with first time from at least one piece of stored state information, and sending the state information serving as the target state information to the external control terminal through the server, wherein the first time is used for representing a corresponding time point when the state information is acquired according to the second period.
In one possible design of the system, the system may be,
the NB-IoT device is configured to, when the NB-IoT device performs the sending of the target state information of the at least one piece of state information to the external control terminal through the server when the preset sending condition is met, specifically perform:
for each piece of state information, reading each piece of parameter information of the central air conditioner in the current state information;
respectively judging whether each parameter information is in a preset range;
and if not, the current state information is taken as the target state information and is sent to the external control terminal through the server.
In one possible design of the system, the system may be,
the external control terminal is further used for sending a first query instruction to the NB-IoT device;
the NB-IoT device is further configured to, according to the first query instruction, when the server sends target state information of the at least one piece of state information to the external control terminal when the achieved preset sending condition is executed, specifically execute:
and acquiring state information with the shortest time interval with a second time from at least one piece of stored state information, and sending the state information serving as the target state information to the external control terminal through the server, wherein the second time is used for representing a corresponding time point when the state information is acquired according to the first query instruction.
In one possible design of the system, the system may be,
the NB-IoT device is configured to, when the NB-IoT device performs the sending of the target state information of the at least one piece of state information to the external control terminal through the server when the preset sending condition is met, specifically perform:
when the state information is acquired, judging that the currently acquired state information is the same as the stored currently acquired state information with the minimum time interval;
and if not, sending the currently acquired state information as the target state information to the external control terminal through the server.
In one possible design, the central air conditioner includes: the system comprises a main control device, at least one indoor unit and at least one outdoor unit, wherein the indoor unit and the outdoor unit are connected with the NB-IoT device through the main control device;
the main control equipment is used for controlling the outdoor unit and the indoor unit to execute corresponding actions according to the first control instruction;
the main control equipment is also used for sending a second query instruction according to a preset third period and acquiring first main control equipment information used for representing the running state of the main control equipment;
each indoor unit is used for sending first indoor unit information used for representing the running state of the indoor unit to the main control equipment according to the second query instruction;
each outdoor unit is used for sending first outdoor unit information used for representing the running state of the outdoor unit to the main control equipment according to the second query instruction;
the main control device is further configured to send the first main control device information, the first indoor unit information, and the first outdoor unit information to the NB-IoT apparatus as the state information.
In one possible design of the system, the system may be,
the main control device is further configured to send a third query instruction when the central air conditioner is powered on, obtain second main control device information of the main control device when the third query instruction is sent, and send second indoor unit information from the indoor unit and second outdoor unit information from the outdoor unit to the NB-IoT device as a piece of system information;
the NB-IoT device is further used for sending the system information to the external control terminal through the server;
and the external control terminal is used for displaying the system information so as to enable a user to check the system information.
In one possible design, the central air conditioning control system further includes: at least one local controller;
the local controller is used for respectively sending a fourth query instruction to each indoor unit according to a preset fourth period;
each indoor unit is further used for sending third indoor unit information to the local controller according to the fourth query instruction;
and the local controller is also used for receiving and displaying the third indoor machine information.
In one possible design of the system, the system may be,
the local controller is further configured to receive a fifth query instruction of a user for at least one indoor unit, and send the fifth query instruction to the indoor unit corresponding to at least one piece of the identification information included in the fifth query instruction, where each indoor unit corresponds to one different piece of the identification information;
each indoor unit is further configured to send fourth indoor unit information to the local controller according to the identification information in the fifth query instruction;
and the local controller is further configured to display the received fourth indoor unit information.
In one possible design of the system, the system may be,
when the first control instruction comprises a limit control instruction, the central air conditioner is further used for storing the limit control instruction, and when a second control instruction from the local controller is received, if the limit control instruction is stored, feedback information used for representing control failure of the local controller is sent to the local controller, wherein the limit control instruction is used for representing that the central air conditioner only allows the external control terminal to control;
the local controller is further configured to display the received feedback information;
and when the first control instruction comprises a deletion limit control instruction, the central air conditioner is further used for deleting the stored limit control instruction, wherein the deletion limit control instruction is used for representing that the central air conditioner allows the local controller to control.
In a second aspect, an embodiment of the present invention further provides a central air-conditioning control method of a central air-conditioning control system based on the first aspect or any possible implementation manner of the first aspect, where the method includes:
the external control terminal receives the first control instruction of a user for the central air conditioner and sends the first control instruction to the NB-IoT device through the server;
the NB-IoT device sends the first control instruction to the central air conditioner;
the central air conditioner executes corresponding actions according to the first control instruction;
the NB-IoT device acquires and stores state information of the central air conditioner according to a preset first period;
the NB-IoT device sends target state information in at least one piece of state information to the external control terminal through the server when a preset sending condition is achieved;
and the external control terminal displays the target state information.
In one possible design, the NB-IoT device transmits target state information of at least one piece of the state information to the external control terminal through the server when a preset transmission condition is achieved, including:
and according to a preset second period, acquiring state information with the shortest time interval with first time from at least one piece of stored state information, and sending the state information serving as the target state information to the external control terminal through the server, wherein the first time is used for representing a corresponding time point when the state information is acquired according to the second period.
In one possible design, the NB-IoT device transmits target state information of at least one piece of the state information to the external control terminal through the server when a preset transmission condition is achieved, including:
for each piece of state information, reading each piece of parameter information of the central air conditioner in the current state information;
respectively judging whether each parameter information is in a preset range;
and if not, the current state information is taken as the target state information and is sent to the external control terminal through the server.
In one possible design, the NB-IoT device transmits target state information of at least one piece of the state information to the external control terminal through the server when a preset transmission condition is achieved, including:
the external control terminal sends a first query instruction to the NB-IoT device;
and the NB-IoT device acquires state information with the shortest time interval with a second time from at least one piece of stored state information according to the first query instruction, and sends the state information serving as the target state information to the external control terminal through the server, wherein the second time is used for representing a corresponding time point when the state information is acquired according to the first query instruction.
In one possible design, the NB-IoT device transmits target state information of at least one piece of the state information to the external control terminal through the server when a preset transmission condition is achieved, including:
when the state information is acquired, judging that the currently acquired state information is the same as the stored currently acquired state information with the minimum time interval;
and if not, sending the currently acquired state information as the target state information to the external control terminal through the server.
In one possible design, when the central air conditioner includes: a main control device, at least one indoor unit and at least one outdoor unit, wherein the indoor unit and the outdoor unit are connected with the NB-IoT device through the main control device,
the central air conditioner executes corresponding actions according to the first control instruction, and the actions comprise:
and the main control equipment controls the outdoor unit and the indoor unit to execute corresponding actions according to the first control instruction.
In one possible design, when the central air conditioner includes: the central air-conditioning control method includes the steps that when a main control device, at least one indoor unit and at least one outdoor unit are used, wherein the indoor unit and the outdoor unit are connected with the NB-IoT device through the main control device, the central air-conditioning control method further includes the following steps:
the master control equipment sends a second query instruction according to a preset third period, and acquires first master control equipment information used for representing the running state of the master control equipment;
each indoor unit sends first indoor unit information used for representing the running state of the indoor unit to the main control equipment according to the second query instruction;
each outdoor unit sends first outdoor unit information used for representing the running state of the outdoor unit to the main control equipment according to the second query instruction;
the master control device sends the first master control device information, the first indoor unit information and the first outdoor unit information to the NB-IoT device as the state information.
In one possible design, before the external control terminal receives the first control instruction of the user for the central air conditioner, the central air conditioner control method further includes:
the main control equipment sends a third query instruction when the central air conditioner is powered on, and acquires second main control equipment information of the main control equipment when the third query instruction is sent;
the main control equipment takes second indoor unit information from the indoor unit and second outdoor unit information from the outdoor unit as a piece of system information and sends the system information to the NB-IoT device;
the NB-IoT device sends the system information to the external control terminal through the server;
and the external control terminal displays the system information so as to enable a user to view the system information.
In one possible design, when the central air-conditioning control system includes at least one local controller, the central air-conditioning control method further includes:
the local controller respectively sends a fourth query instruction to each indoor unit according to a preset fourth period;
each indoor unit sends third indoor unit information to the local controller according to the fourth query instruction;
and the local controller receives and displays the third indoor machine information.
In one possible design, when the central air-conditioning control system includes at least one local controller, the central air-conditioning control method further includes:
the local controller receives a fifth query instruction of a user for at least one indoor unit, and sends the fifth query instruction to the indoor unit corresponding to at least one piece of identification information contained in the fifth query instruction, wherein each indoor unit corresponds to one piece of different identification information;
each indoor unit sends fourth indoor unit information to the local controller according to the identification information in the fifth query instruction;
and the local controller displays the received fourth indoor unit information.
In one possible design, when the central air-conditioning control system includes at least one local controller, the central air-conditioning control method further includes:
when the first control instruction comprises a limit control instruction,
the central air conditioner stores the limit control instruction, wherein the limit control instruction is used for representing that the central air conditioner only allows the external control terminal to control;
when the central air conditioner receives a second control instruction from the local controller, if the limit control instruction is stored, sending feedback information for representing control failure of the local controller to the local controller;
the local controller displays the received feedback information;
when the first control instruction comprises a deletion limit control instruction, wherein the deletion limit control instruction is used for representing that the central air conditioner allows the local controller to control;
and the central air conditioner deletes the stored limit control instruction.
According to the technical scheme, the external control terminal sends a first control command for the central air conditioner to the central air conditioner through the server and the NB-IoT device, and the central air conditioner executes corresponding actions according to the first control command; the NB-IoT device can also acquire and store the state information of the central air conditioner according to a preset first period, and send target state information in the stored plurality of pieces of state information to the external control terminal for displaying when a preset sending condition is achieved. As can be seen from the above, the user sends the control command for the central air conditioner through the external control terminal, and the control command is sent to the central air conditioner through the NB-IoT device, thereby implementing remote control of the central air conditioner. When the preset sending condition is achieved, the NB-IoT device sends the target state information in the stored at least one piece of state information to the external control terminal for displaying, and the user remotely checks the running state of the central air conditioner according to the information displayed by the external control terminal, so that the user further remotely controls the central air conditioner according to the information.
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 a schematic diagram of a central air conditioning control system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of another central air conditioning control system provided by an embodiment of the present invention;
FIG. 3 is a schematic diagram of another central air conditioning control system according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating a method for controlling a central air conditioner according to an embodiment of the present invention;
fig. 5 is a flowchart of another central air conditioner control method 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 central air-conditioning control system, including: an external control terminal 101, a central air conditioner 102, a server 103 and a narrowband internet of things (NB-IoT) device 104;
the external control terminal 101 is used for receiving a first control instruction of a user for the central air conditioner 102 and sending the first control instruction to the NB-IoT device 104 through the server 103;
an NB-IoT device 104 configured to send a first control instruction to the central air conditioner 102;
the central air conditioner 102 is used for executing corresponding actions according to the first control instruction;
the NB-IoT device 104 is further configured to obtain and store state information of the central air conditioner 102 according to a preset first period, and send target state information of at least one piece of state information to the external control terminal 101 through the server 103 when a preset sending condition is achieved;
the external control terminal 101 is further configured to display the target state information.
In the embodiment of the present invention, the external control terminal 101 sends a first control instruction for the central air conditioner 102 to the central air conditioner 102 through the server 103 and the NB-IoT device 104, and the central air conditioner 102 performs a corresponding action according to the first control instruction; the NB-IoT device 104 may further obtain and store the status information of the central air conditioner 102 according to a preset first period, and send target status information of the stored pieces of status information to the external control terminal 101 for displaying when a preset sending condition is achieved. As can be seen from the above, the user sends the control command for the central air conditioner through the external control terminal, and the control command is sent to the central air conditioner through the NB-IoT device, thereby implementing remote control of the central air conditioner. When the preset sending condition is achieved, the NB-IoT device sends the target state information in the stored at least one piece of state information to the external control terminal for displaying, and the user remotely checks the running state of the central air conditioner according to the information displayed by the external control terminal, so that the user further remotely controls the central air conditioner according to the information.
It is understood that the external control terminal 101 may be a mobile phone, or a computer. For example, a user sends a control command for controlling the temperature of the central air conditioner to be 26 ℃ through a mobile phone, the control command is sent to the NB-IoT device through the server, the NB-IoT device sends the control command to the central air conditioner, and the central air conditioner executes corresponding actions according to the control command.
It should be noted that the NB-IoT device employs a cellular mobile NB-IoT network communication technology, and the NB-IoT technology is a network cellular data connection technology that supports a wide area network and is constructed by a telecommunications carrier, and has the advantages of wide coverage, many connections, high speed, low cost, low power consumption, and excellent architecture.
In one embodiment of the present invention, based on the central air conditioning control system shown in fig. 1,
an NB-IoT device 104, configured to, when the predetermined sending condition is fulfilled and the target state information in the at least one piece of state information is sent 103 to the external control terminal through the server 101, specifically perform:
according to a preset second period, state information with the shortest time interval with the first time is acquired from at least one piece of stored bar state information, and the state information is used as target state information and sent to the external control terminal 101 through the server 103, wherein the first time is used for representing a corresponding time point when the state information is acquired according to the second period.
In the embodiment of the present invention, the NB-IoT device 104 acquires, according to the preset second period, one piece of status information with the shortest time interval from the stored pieces of status information, and sends the status information as the target status information to the external control terminal 101 through the server 103. Therefore, the user can view the target state information periodically transmitted by the NB-IoT device through the external control terminal, so that the user can remotely control the central air conditioner according to the information and the use requirement.
In one embodiment of the present invention, based on the central air conditioning control system shown in fig. 1,
an NB-IoT device 104, configured to, when the predetermined sending condition is fulfilled and the target state information in the at least one piece of state information is sent 103 to the external control terminal through the server 101, specifically perform:
for each piece of state information, reading each piece of parameter information of the central air conditioner 102 in the current state information;
respectively judging whether each parameter information is in a preset range;
if not, the current state information is transmitted as target state information to the external control terminal 101 through the server 103.
In the embodiment of the present invention, when acquiring a piece of state information, NB-IoT device 104 determines whether each piece of parameter information in the state information is within a preset range, and when at least one piece of parameter information in the state information is not within the range, that is, the state information is abnormal, sends the state information as target state information to external control terminal 101 through server 103. Therefore, the NB-IoT device sends the abnormal state information to the external control terminal in real time, so that the user can perform relevant operations in time according to the information displayed by the external control terminal, and the real-time monitoring and remote management of the central air conditioner are realized.
In one embodiment of the present invention, based on the central air conditioning control system shown in fig. 1,
the external control terminal 101 is further configured to send a first query instruction to the NB-IoT device 104;
the NB-IoT device 104 is further configured to, according to the first query instruction, when the target state information in the at least one piece of state information is sent to the external control terminal 101 through the server 103 under the achieved preset sending condition, specifically perform:
and acquiring state information with the shortest time interval with a second time from the stored at least one piece of state information, and sending the state information as target state information to the external control terminal 101 through the server 103, wherein the second time is used for representing a corresponding time point when the state information is acquired according to the first query instruction.
In the embodiment of the present invention, when receiving the first query instruction from the external control terminal 101, the NB-IoT device 104 acquires one piece of state information with the shortest time interval from the plurality of pieces of stored state information, and sends the state information as target state information to the external control terminal 101 through the server 103. Therefore, the user can remotely check the state information of the central air conditioner at any time through the external control terminal, so that the user can remotely control the central air conditioner according to actual requirements.
In one embodiment of the present invention, based on the central air conditioning control system shown in fig. 1,
an NB-IoT device 104, configured to, when the predetermined sending condition is fulfilled and the target state information in the at least one piece of state information is sent 103 to the external control terminal through the server 101, specifically perform:
when the state information is acquired, judging that the currently acquired state information is the same as the stored currently acquired state information and the state information with the minimum time interval is acquired;
if not, the currently acquired state information is sent to the external control terminal 101 through the server 103 as target state information.
In the embodiment of the present invention, when NB-IoT device 104 receives a piece of status information, it determines whether the piece of status information is the same as the piece of status information with the shortest time interval to the piece of status information among the stored pieces of status information, and if not, sends the piece of status information as target status information to external control terminal 101 through server 103. Therefore, when the state information received by the NB-IoT device is different from the previous one, the state information is sent to the external control terminal for displaying, so that the user can see the latest state information, and the user can remotely control the central air conditioner according to actual requirements.
Note that, when the NB-IoT device 104 executes the preset transmission condition to transmit the target state information of the at least one piece of state information to the external control terminal 101 through the server 103, any one of the above four methods may be adopted, and of course, any combination may be set.
In an embodiment of the present invention, based on the central air-conditioning control system shown in fig. 1, as shown in fig. 2, the central air conditioner 102 includes: the mobile terminal comprises a main control device 1021, at least one indoor unit 1022 and at least one outdoor unit 1023, wherein the indoor unit 1022 and the outdoor unit 1023 are connected with the NB-IoT device 104 through the main control device 1021;
the main control device 1021, configured to control the outdoor unit 1023 and the indoor unit 1022 to perform corresponding actions according to the first control instruction;
the main control device 1021 is further configured to send a second query instruction according to a preset third period, and obtain first main control device information used for representing the running state of the main control device 1021;
each indoor unit 1022 is configured to send, according to the second query instruction, first indoor unit information used for representing an operation state of the first indoor unit to the main control device 1021;
each outdoor unit 1023 is used for sending the information of the first outdoor unit for representing the running state of the outdoor unit to the main control device 1021 according to the second query instruction;
the main control device 1021 is further configured to send the first main control device information, the first indoor unit information, and the first outdoor unit information to the NB-IoT device 104 as the state information.
In the embodiment of the present invention, during the power-on period of the central air conditioner, the main control device 1021 respectively controls the indoor unit 1022 and the outdoor unit 1023 to execute corresponding actions according to the received first control instruction; the main control device 1021 may also send a second query instruction through a preset third cycle (e.g., 200 ms, 500 ms, etc.), and acquire its own first main control device information, and send the first indoor unit information from each indoor unit 1023 and the first outdoor unit information from each outdoor unit 1023 as state information to the NB-IoT device 104. Therefore, during the power-on period of the central air conditioner, the main control equipment periodically sends the state information to the NB-IoT device, so that the real-time monitoring of the operation state of the central air conditioner is realized.
It should be noted that each set of central air-conditioning master control device is provided with a unique Serial Number (SN) set by a central air-conditioning manufacturer for burning as an Identity ID of the central air-conditioning, each NB-IoT device is provided with an International Mobile Equipment Identity (IMEI) burned by an NB-IoT device manufacturer, and when the central air-conditioning manufacturer sets a burning SN Number, the SN Number is simultaneously burned to the NB-IoT device. Before the NB-IoT device is used, a telecom IOT platform is required to be logged in to use IMEI authentication registration as NB-IoT device and telecom IoT platform communication identity IDs, the NB-IoT device is powered on and sends an IMEI number and an SN number to a server to register information, the server establishes a binding relationship between a central air conditioner and the NB-IoT device according to the IMEI number and the SN number, and uses the bound SN number as the ID of each set of central air conditioner to realize various data transceiving and processing functions.
In one embodiment of the present invention, based on the central air conditioning control system shown in fig. 2,
the main control device 1021 is further configured to send a third query instruction when the central air conditioner 102 is powered on, obtain second main control device information of the main control device 1021 when the third query instruction is sent, and send the second indoor unit information from the indoor unit 1022 and the second outdoor unit information from the outdoor unit 1023 to the NB-IoT device 104 as one piece of system information;
NB-IoT device 104 further configured to transmit system information to external control terminal 101 through server 103;
and the external control terminal 101 is used for displaying the system information so that a user can view the system information.
In the embodiment of the present invention, when the central air conditioner 102 is just powered on, the main control device 1021 sends its second main control device, the second indoor unit information of each indoor unit 1022, and the second outdoor unit information of each outdoor unit 1023 as a piece of system information to the external control terminal 101 through the NB-IoT device 104 and the server 103 for presentation. Therefore, the user can check the state of the central air conditioner when the central air conditioner is just powered on through the external control terminal, and the central air conditioner can be remotely controlled by the user according to actual requirements.
In an embodiment of the present invention, based on the central air-conditioning control system shown in fig. 2, as shown in fig. 3, the central air-conditioning control system further includes: at least one local controller 301;
the local controller 301 is configured to send a fourth query instruction to each indoor unit 1032 according to a preset fourth period;
each indoor unit 1032 is further configured to send third indoor unit information to the local controller 301 according to the fourth query instruction;
the local controller 301 is further configured to receive and display the third indoor unit information.
In the embodiment of the present invention, the local remote controller 301 may query the status information of each indoor unit 1022 according to a preset fourth period, and display the status information, so that a user may view the operation status of the central air conditioner in a local viewing manner.
It should be noted that the local remote controller 301 may be, for example, a line controller, and the line controller may be connected to at least one indoor unit through a data bus (e.g., an RS485 data bus, an XL1192 data bus, etc.), that is, one line controller may be connected to one indoor unit, or may be connected to multiple indoor units. In addition, the drive-by-wire ware can match multiple installation form according to user's different demands, for example knob, button, touch-sensitive screen, calibrated scale, liquid crystal display, modes such as voice broadcast. The local remote control 301 may of course also be a remote control (e.g. an infrared remote control, etc.).
In one embodiment of the present invention, based on the central air conditioning control system shown in fig. 3,
the local controller 301 is further configured to receive a fifth query instruction of the user for the at least one indoor unit 1022, and send the fifth query instruction to the indoor unit 1022 corresponding to at least one identification information included in the fifth query instruction, where each indoor unit 1022 corresponds to one different identification information;
each indoor unit 1022 is further configured to send fourth indoor unit information to the local controller 301 according to the identification information in the fifth query instruction;
the local controller 301 is further configured to display the received fourth indoor unit information.
In the embodiment of the present invention, each indoor unit 1022 corresponds to a different identification information (for example, an equipment address, an equipment model, and the like), and when receiving a fifth query instruction for at least one indoor unit 1022 from a user, the local remote controller 301 sends the query instruction to the indoor unit 1022 corresponding to the identification information included in the query instruction, and displays fourth indoor unit information returned by each indoor unit according to the corresponding identification information. Therefore, a user can locally check the running state of one or more specific indoor units by using the local controller according to different requirements.
It should be noted that, in the embodiment of the present invention, the external control terminal 101 may also realize the same function as the local remote controller 301, and since the query methods for performing local query are the same, the detailed description is not repeated here.
In one embodiment of the present invention, based on the central air conditioning control system shown in fig. 3,
when the first control instruction comprises a limit control instruction,
the central air conditioner 102 is further configured to store a limit control instruction, and when a second control instruction from the local controller 301 is received, if the limit control instruction is stored, send feedback information for indicating that the local controller 301 fails to control to the local controller 301, where the limit control instruction is used for indicating that the central air conditioner 102 only allows the external control terminal 101 to control;
the local controller 301 is further configured to display the received feedback information;
when the first control instruction comprises a delete limit control instruction,
the central air conditioner 102 is further configured to delete the stored limitation control command, where the deletion limitation control command is used to indicate that the central air conditioner 102 allows the local controller 301 to control.
In the embodiment of the present invention, when the first control instruction includes a limitation control instruction for indicating that the central air conditioner 102 only allows the external control terminal 101 to control, the limitation control instruction is stored, and when receiving the second control instruction of the local controller 301, the feedback information indicating that the local controller 301 fails to control is sent to the local controller 301 for display; when the first control instruction includes a deletion restriction control instruction for indicating that the central air conditioner 102 allows the external control terminal 101 to control, the central air conditioner 102 deletes the stored restriction control instruction. Therefore, the user can use the external control terminal to send the remote control instruction according to different requirements to allow or prohibit the local controller to carry out local control on the central air conditioner, and further realize remote management on the central air conditioner.
As shown in fig. 4, an embodiment of the present invention provides a central air-conditioning control method of a central air-conditioning control system according to any of the foregoing embodiments, where the method specifically includes the following steps:
step 401: the external control terminal receives a first control instruction of a user for the central air conditioner and sends the first control instruction to the NB-IoT device through the server;
step 402: the NB-IoT device sends the first control instruction to the central air conditioner;
step 403: the central air conditioner executes corresponding actions according to the first control instruction;
step 404: the NB-IoT device acquires and stores state information of the central air conditioner according to a preset first period;
step 405: the NB-IoT device sends target state information in at least one piece of state information to an external control terminal through a server when a preset sending condition is achieved;
step 406: and the external control terminal displays the target state information.
In an embodiment of the present invention, based on the central air-conditioning control method shown in fig. 4, the step 405 of the NB-IoT device sending the target state information in the at least one piece of state information to the external control terminal through the server when the NB-IoT device achieves the preset sending condition may specifically include the following steps:
and according to a preset second period, state information with the shortest time interval with the first time is acquired from at least one piece of stored bar state information, and the state information is used as target state information and is sent to an external control terminal through a server, wherein the first time is used for representing a corresponding time point when the state information is acquired according to the second period.
In an embodiment of the present invention, based on the central air-conditioning control method shown in fig. 4, the step 405 of the NB-IoT device sending the target state information in the at least one piece of state information to the external control terminal through the server when the NB-IoT device achieves the preset sending condition may specifically include the following steps:
reading each parameter information of the central air conditioner in the current state information aiming at each state information;
respectively judging whether each parameter information is in a preset range;
and if not, sending the current state information serving as the target state information to the external control terminal through the server.
In an embodiment of the present invention, based on the central air-conditioning control method shown in fig. 4, the step 405 of the NB-IoT device sending the target state information in the at least one piece of state information to the external control terminal through the server when the NB-IoT device achieves the preset sending condition may specifically include the following steps:
the external control terminal sends a first query instruction to the NB-IoT device;
and the NB-IoT device acquires state information with the shortest time interval with a second time from the at least one piece of stored bar state information according to the first query instruction, and sends the state information as target state information to the external control terminal through the server, wherein the second time is used for representing a corresponding time point when the state information is acquired according to the first query instruction.
In an embodiment of the present invention, based on the central air-conditioning control method shown in fig. 4, the step 405 of the NB-IoT device sending the target state information in the at least one piece of state information to the external control terminal through the server when the NB-IoT device achieves the preset sending condition may specifically include the following steps:
when the state information is acquired, judging that the currently acquired state information is the same as the stored currently acquired state information and the state information with the minimum time interval is acquired;
and if not, sending the currently acquired state information as target state information to an external control terminal through a server.
In an embodiment of the present invention, based on the central air-conditioning control method shown in fig. 4, when the central air-conditioning includes a main control device, at least one outdoor unit and at least one indoor unit, wherein the indoor unit and the outdoor unit are connected to the NB-IoT device through the main control device,
and the main control equipment controls the outdoor unit and the indoor unit to execute corresponding actions according to the first control instruction.
In an embodiment of the present invention, based on the central air-conditioning control method shown in fig. 4, when the central air-conditioning includes a main control device, at least one outdoor unit, and at least one indoor unit, where the indoor unit and the outdoor unit are connected to the NB-IoT device through the main control device, the method may further include the following steps:
the main control equipment sends a second query instruction according to a preset third period, and acquires first main control equipment information used for representing the running state of the main control equipment;
each indoor unit sends first indoor unit information used for representing the running state of the indoor unit to the main control equipment according to the second query instruction;
each outdoor unit sends first outdoor unit information used for representing the running state of the outdoor unit to the main control equipment according to the second query instruction;
the master control device sends the first master control device information, the first indoor unit information and the first outdoor unit information as state information to the NB-IoT device.
In an embodiment of the present invention, based on the central air conditioner control method shown in fig. 4, before the external control terminal receives a first control instruction of a user for the central air conditioner in step 401, the method may further include the following steps:
the main control equipment sends a third query instruction when the central air conditioner is powered on, and acquires second main control equipment information of the main control equipment when the third query instruction is sent;
the main control equipment takes the second indoor unit information from the indoor unit and the second outdoor unit information from the outdoor unit as a piece of system information and sends the system information to the NB-IoT device;
the NB-IoT device sends the system information to an external control terminal through a server;
and the external control terminal displays the system information so that the user can view the system information.
In an embodiment of the present invention, based on the central air-conditioning control method shown in fig. 4, when the central air-conditioning includes a main control device, at least one outdoor unit and at least one indoor unit, where the indoor unit and the outdoor unit are connected to the NB-IoT device through the main control device, the central air-conditioning control method may further include the following steps:
the local controller respectively sends a fourth query instruction to each indoor unit according to a preset fourth period;
each indoor unit sends the third indoor unit information to the local controller according to the fourth query instruction;
and the local controller receives and displays the information of the third indoor unit.
In an embodiment of the present invention, based on the central air-conditioning control method shown in fig. 4, when the central air-conditioning control system includes at least one local controller, the central air-conditioning control method may further include the steps of:
the local controller receives a fifth query instruction of a user for at least one indoor unit, and sends the fifth query instruction to the indoor unit corresponding to at least one piece of identification information contained in the fifth query instruction, wherein each indoor unit corresponds to different pieces of identification information;
each indoor unit sends the fourth indoor unit information to the local controller according to the identification information in the fifth query instruction;
and the local controller displays the received fourth indoor unit information.
In an embodiment of the present invention, based on the central air-conditioning control method shown in fig. 4, when the central air-conditioning control system includes at least one local controller, the central air-conditioning control method may further include the steps of:
when the first control instruction comprises a limit control instruction,
the central air conditioner stores a limit control instruction, wherein the limit control instruction is used for representing that the central air conditioner only allows an external control terminal to control;
when the central air conditioner receives a second control instruction from the local controller, if a limit control instruction is stored, sending feedback information for representing control failure of the local controller to the local controller;
the local controller displays the received feedback information;
when the first control instruction comprises a deletion limit control instruction, wherein the deletion limit control instruction is used for representing that the central air conditioner allows the local controller to control;
the central air conditioner deletes the stored restriction control command.
It should be noted that the configuration illustrated in the embodiment of the present invention does not specifically limit the central air conditioning control system. In other embodiments of the present invention, the central climate control system may include more or fewer components than shown, or combine certain components, or split certain components, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.
The information interaction, execution process and other contents between the modules in the central air-conditioning control system are based on the same concept as the method embodiment of the present invention, and specific contents can be referred to the description in the method embodiment of the present invention, and are not described herein again.
In order to more clearly illustrate the technical solution and advantages of the present invention, the following describes in detail a central air-conditioning control method provided by an embodiment of the present invention, as shown in fig. 5, the method may include the following steps:
step 501: the central air conditioner sends system information to the NB-IoT device upon power up.
In this step, the central air conditioner includes a main control device, at least one indoor unit, and at least one outdoor unit, wherein the main control device, the outdoor unit, and the indoor unit may be connected via an RS485 data bus, or certainly may be connected via an XL1192 data bus, and the main control device may be connected to the NB-IoT device via a UART bus. In the embodiment of the invention, the main control equipment sends a third query instruction when the central air conditioner is powered on, and acquires the second main control equipment information of the main control equipment when the third query instruction is sent; the main control device sends the second indoor unit information from the indoor unit and the second outdoor unit information from the outdoor unit to the NB-IoT device as a piece of system information.
Step 502: the NB-IoT device transmits the system information to the external control terminal.
In this step, the NB-IoT device sends the system information from the central air conditioner to the external control terminal through the server, and the external control terminal displays the system information, so that the user can view the system information when the central air conditioner is powered on.
Step 503: the external control terminal sends a first control instruction.
In this step, the external control terminal receives a first control instruction of the user for the central air conditioner, and sends the first control instruction to the NB-IoT device through the server.
Step 504: the NB-IoT device sends the first control instruction to the central air conditioner.
Step 505: and the central air conditioner executes corresponding actions according to the first control instruction.
In this step, the main control device respectively controls the indoor unit and the outdoor unit to execute corresponding actions according to the first control instruction.
Step 506: the central air conditioner sends the status information to the NB-IoT device.
In this step, the central air conditioner specifically performs the following operations:
the main control equipment sends a second query instruction according to a preset third period, and acquires first main control equipment information used for representing the running state of the main control equipment;
each indoor unit sends first indoor unit information used for representing the running state of the indoor unit to the main control equipment according to the second query instruction;
each outdoor unit sends first outdoor unit information used for representing the running state of the outdoor unit to the main control equipment according to the second query instruction;
the master control device sends the first master control device information, the first indoor unit information and the first outdoor unit information as state information to the NB-IoT device.
Step 507: the NB-IoT device acquires and stores state information.
In this step, the NB-IoT device acquires and stores status information from the central air conditioner according to a preset first period.
For example, when the preset first period is 1min, the NB-IoT device acquires and stores the status information of the central air conditioner every 1 min.
Step 508: the NB-IoT device transmits the target state information to the external control terminal.
In this step, the NB-IoT device transmits target state information of at least one piece of state information to the external control terminal through the server when a preset transmission condition is achieved, where the preset transmission condition includes the following four conditions:
in the first case: when the preset second period is 20min, the first time is 2020-01-01-10:20, and the stored pieces of state information are' state information A: 2020-01-01-10: 19; state information B: 2020-01-01-10: 18; state information C: 2020-01-01-10: 17', the NB-IoT device sends the state information A as target state information to the external control terminal through the server;
in the second case: when the state information acquired by the NB-IoT device comprises a temperature of 31 ℃ and the preset temperature range is 15-30 ℃, the NB-IoT device sends the state information serving as target state information to an external control terminal through a server;
in the third case: when the NB-IoT device receives a first query instruction of 2020-01-01-10:21 from an external control terminal, the stored pieces of state information are' state information 1: 2020-01-01-10: 12; state information 2: 2020-01-01-10: 18; state information 3: 2020-01-01-10: 20', the NB-IoT device sends state information 2 as target state information to the external control terminal via the server;
in a fourth case: when the plurality of pieces of state information stored by the NB-IoT device is "state information D: 2020-01-01-10, 12-28 deg.C; state information E: 2020-01-01-10, 18-28 deg.C; state information F: 2020-01-01-10: 20-temperature 26 ℃ ", when the currently received state information is" 2020-01-01-10: 21-temperature 28 ℃ ", the NB-IoT device sends the currently received state information as target state information to the external control terminal through the server by determining that" temperature 28 ℃ "is different from state information F" temperature 26 ℃ ".
In this step, only one of the four situations may be set according to the user's requirement, and of course, the setting may be arbitrarily combined.
Step 509: and the external control terminal displays the target state information.
Step 510: and the central air conditioner receives a second control instruction.
In this step, the central air-conditioning control system includes a local controller (e.g., a line controller, a remote controller, etc.), and the local controller receives a second control instruction for the central air-conditioning from a user and then sends the second control instruction to the central air-conditioning.
Step 511: the central air conditioner judges whether a limit control instruction is stored, if so, step 513 is executed, otherwise, step 512 is executed.
In this step, the limitation control instruction is used for representing that the central air conditioner only allows the control of the external control terminal, and when the first control instruction comprises the limitation control instruction, the central air conditioner stores the limitation control instruction; and when the first control instruction comprises a deletion limit control instruction, deleting the stored limit control instruction, wherein the deletion limit control instruction is used for representing that the central air conditioner allows the local controller to control. And when the central air conditioner receives a second control instruction of the local controller, judging whether the limit control instruction is stored.
Step 512: and the central air conditioner executes the relevant action according to the second control instruction, and the current process is ended.
Step 513: the central air conditioner sends feedback information.
In this step, the feedback information is used for representing that the local controller fails to control, the local remote controller sends the feedback information to the local controller, and the local controller receives and displays the feedback information so that the user performs relevant operations according to the feedback information.
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 module may be implemented mechanically or electrically. For example, a hardware module may comprise permanently dedicated circuitry or logic (such as a dedicated processor, FPGA or ASIC) to perform the corresponding operations. A hardware module may also include programmable logic or circuitry (e.g., 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 (10)
1. The central air-conditioning control system is characterized by comprising: the system comprises an external control terminal, a central air conditioner, a server and a narrowband Internet of things NB-IoT device;
the external control terminal is used for receiving a first control instruction of a user for the central air conditioner and sending the first control instruction to the NB-IoT device through the server;
the NB-IoT device is used for sending the first control instruction to the central air conditioner;
the central air conditioner is used for executing corresponding actions according to the first control instruction;
the NB-IoT device is further used for acquiring and storing the state information of the central air conditioner according to a preset first period, and sending target state information in at least one piece of state information to the external control terminal through the server when a preset sending condition is achieved;
and the external control terminal is also used for displaying the target state information.
2. The system of claim 1,
the NB-IoT device is configured to, when the preset sending condition that is achieved is executed and target state information in the at least one piece of state information is sent to the external control terminal through the server, specifically execute:
and according to a preset second period, acquiring state information with the shortest time interval with first time from at least one piece of stored state information, and sending the state information serving as the target state information to the external control terminal through the server, wherein the first time is used for representing a corresponding time point when the state information is acquired according to the second period.
3. The system of claim 1,
the NB-IoT device is configured to, when the NB-IoT device performs the sending of the target state information of the at least one piece of state information to the external control terminal through the server when the preset sending condition is met, specifically perform:
for each piece of state information, reading each piece of parameter information of the central air conditioner in the current state information;
respectively judging whether each parameter information is in a preset range;
and if not, the current state information is taken as the target state information and is sent to the external control terminal through the server.
4. The system of claim 1,
the external control terminal is further used for sending a first query instruction to the NB-IoT device;
the NB-IoT device is further configured to, according to the first query instruction, when the server sends target state information of the at least one piece of state information to the external control terminal when the achieved preset sending condition is executed, specifically execute:
and acquiring state information with the shortest time interval with a second time from at least one piece of stored state information, and sending the state information serving as the target state information to the external control terminal through the server, wherein the second time is used for representing a corresponding time point when the state information is acquired according to the first query instruction.
5. The system of claim 1,
the NB-IoT device is configured to, when the NB-IoT device performs the sending of the target state information of the at least one piece of state information to the external control terminal through the server when the preset sending condition is met, specifically perform:
when the state information is acquired, judging that the currently acquired state information is the same as the stored currently acquired state information with the minimum time interval;
and if not, sending the currently acquired state information as the target state information to the external control terminal through the server.
6. The system of claim 1, wherein the central air conditioner comprises: the system comprises a main control device, at least one indoor unit and at least one outdoor unit, wherein the indoor unit and the outdoor unit are connected with the NB-IoT device through the main control device;
the main control equipment is used for controlling the outdoor unit and the indoor unit to execute corresponding actions according to the first control instruction;
the main control equipment is also used for sending a second query instruction according to a preset third period and acquiring first main control equipment information used for representing the running state of the main control equipment;
each indoor unit is used for sending first indoor unit information used for representing the running state of the indoor unit to the main control equipment according to the second query instruction;
each outdoor unit is used for sending first outdoor unit information used for representing the running state of the outdoor unit to the main control equipment according to the second query instruction;
the main control device is further configured to send the first main control device information, the first indoor unit information, and the first outdoor unit information to the NB-IoT apparatus as the state information.
7. The system of claim 6,
the main control device is further configured to send a third query instruction when the central air conditioner is powered on, obtain second main control device information of the main control device when the third query instruction is sent, and send second indoor unit information from the indoor unit and second outdoor unit information from the outdoor unit to the NB-IoT device as a piece of system information;
the NB-IoT device is further used for sending the system information to the external control terminal through the server;
and the external control terminal is used for displaying the system information so as to enable a user to check the system information.
8. The system of claim 7, further comprising: at least one local controller;
the local controller is used for respectively sending a fourth query instruction to each indoor unit according to a preset fourth period;
each indoor unit is further used for sending third indoor unit information to the local controller according to the fourth query instruction;
the local controller is also used for receiving and displaying the third indoor unit information;
and/or the presence of a gas in the gas,
the local controller is further configured to receive a fifth query instruction of a user for at least one indoor unit, and send the fifth query instruction to the indoor unit corresponding to at least one piece of the identification information included in the fifth query instruction, where each indoor unit corresponds to one different piece of the identification information;
each indoor unit is further configured to send fourth indoor unit information to the local controller according to the identification information in the fifth query instruction;
and the local controller is further configured to display the received fourth indoor unit information.
9. The system of claim 8,
when the first control instruction comprises a limit control instruction, the central air conditioner is further used for storing the limit control instruction, and when a second control instruction from the local controller is received, if the limit control instruction is stored, feedback information used for representing control failure of the local controller is sent to the local controller, wherein the limit control instruction is used for representing that the central air conditioner only allows the external control terminal to control;
the local controller is further configured to display the received feedback information;
and when the first control instruction comprises a deletion limit control instruction, the central air conditioner is further used for deleting the stored limit control instruction, wherein the deletion limit control instruction is used for representing that the central air conditioner allows the local controller to control.
10. A central air-conditioning control method based on the central air-conditioning control system according to any one of claims 1 to 9, characterized by comprising:
the external control terminal receives the first control instruction of a user for the central air conditioner and sends the first control instruction to the NB-IoT device through the server;
the NB-IoT device sends the first control instruction to the central air conditioner;
the central air conditioner executes corresponding actions according to the first control instruction;
the NB-IoT device acquires and stores state information of the central air conditioner according to a preset first period;
the NB-IoT device sends target state information in at least one piece of state information to the external control terminal through the server when a preset sending condition is achieved;
and the external control terminal displays the target state information.
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| CN114738925B (en) * | 2022-04-15 | 2023-08-04 | 四川虹美智能科技有限公司 | Full-state automatic control method for air conditioner based on big data |
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Application publication date: 20210219 |