Communication and power supply control system and method for air conditioner

Abstract

A communication and power supply control system and method for an air conditioner. The communication and power supply control system for an air conditioner comprises: a communication device (100), a communication line (200) and an outdoor unit (300), wherein the communication device (100) is connected to a first power source (400); the communication line (200) is connected to the communication device (100); and the outdoor unit (300) comprises a control module (301), and the control module (301) is respectively connected to the communication line (200) and a second power source (500), and is used for controlling the outdoor unit (300) to communicate with the communication device (100) by using a scheduled inspection communication strategy and by means of the communication line (200), so as to detect the communication state of the communication device (100) and determine that the communication device (100) is in a communication power failure state, and for controlling the outdoor unit (300) to supply, by means of the communication line (200), power to the communication device (100) which is in a power failure. Therefore, when a communication device of an air conditioner has a power failure, communication devices in an air conditioning system can still realize the functions of power supply and communication to complete specified operations, thereby improving the operation stability and reliability of the whole machine.

Description

Air conditioning communication power supply control system and method

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 2023115467063, filed on November 20, 2023, entitled “Air Conditioning Communication Power Supply Control System and Method,” which is incorporated herein by reference in its entirety. Technical Field

[0003] The present application relates to the field of air conditioning technology, and in particular to an air conditioning communication power supply control system and method. Background Art

[0004] Currently, air conditioning systems use separate cables for equipment communication and power supply. These cables cannot carry power signals, preventing simultaneous output of both signals. When an air conditioning system device experiences an unexpected power outage, communication is interrupted, preventing the device from saving critical data and resetting to the specified operating state. This can lead to unstable air conditioning system operation.

[0005] Summary of the Invention

[0006] The present application provides an air conditioning communication power supply control system and method, which can ensure that when the air conditioning communication equipment loses power, the various communication devices in the air conditioning system can still realize the power supply and communication functions, thereby completing the specified operations and improving the operational stability and reliability of the entire machine.

[0007] The present application provides an air conditioning communication power supply control system, comprising:

[0008] a communication device connected to the first power source;

[0009] a communication line connected to the communication device;

[0010] The outdoor unit includes a control module, which is respectively connected to the communication line and the second power supply, and is used to control the outdoor unit to adopt a timed patrol communication strategy to communicate with the communication device through the communication line to detect the communication status of the communication device, and determine that the communication device is in a communication power-off state, and control the outdoor unit to supply power to the power-off communication device through the communication line.

[0011] The air conditioning communication power supply control system provided in this application can simultaneously transmit power signals and communication signals through communication lines, and can detect the communication equipment within the system in real time. In the event that the air conditioning communication equipment loses power, the various communication devices within the air conditioning system can still realize the power supply and communication functions, thereby completing the specified operations and improving the operational stability and reliability of the entire machine.

[0012] According to an air conditioning communication power supply control system provided by the present application, the control module includes:

[0013] a main control unit connected to the second power supply;

[0014] A power supply circuit connected to the main control unit;

[0015] a current detection circuit, connected to the main control unit and the power supply circuit respectively, for detecting whether the communication line is in an abnormal state;

[0016] a power supply output control circuit, connected to the main control unit and the current detection circuit respectively, for identifying the detection signal of the current detection circuit and obtaining the instruction of the main control unit, and controlling the power signal output of the second power supply;

[0017] a communication circuit, connected to the main control unit, for controlling the communication signal output of the outdoor unit;

[0018] The communication interface is connected to the power supply output control circuit, the communication circuit and the communication line respectively, and is used to output the power supply signal and the communication signal to the communication line.

[0019] According to an air-conditioning communication power supply control system provided by the present application, the control module further includes:

[0020] A storage unit is connected to the main control unit and is used to store the number of addresses of the communication device.

[0021] According to an air-conditioning communication power supply control system provided by the present application, the communication equipment includes: an indoor unit connected in parallel to the communication line, a wire controller, a centralized controller and a temperature controller.

[0022] The present application also provides a control method for the above-mentioned air-conditioning communication power supply control system, comprising:

[0023] Controlling the outdoor unit to communicate with the communication device via the communication line using a timed inspection communication strategy to detect the communication status of the communication device;

[0024] It is determined that the communication device is in a communication power-off state, and the outdoor unit is controlled to supply power to the power-off communication device through the communication line.

[0025] The air conditioning communication power supply control method provided in this application can detect the communication equipment in the system in real time, and can control the outdoor unit to supply power to the communication equipment through the communication line when the air conditioning communication equipment loses power, so that each communication equipment in the air conditioning system can still realize the power supply and communication functions, thereby completing the specified operations and improving the operation stability and reliability of the entire machine.

[0026] According to a control method of an air-conditioning communication power supply control system provided by the present application, after the step of controlling the outdoor unit to supply power to the power-off communication device through the communication line, the method further includes:

[0027] If it is detected through the scheduled inspection communication strategy that the communication device that has lost power is still in the communication power-off state, the outdoor unit is controlled to supply power to the communication device that has lost power again through the communication line.

[0028] According to a control method of an air-conditioning communication power supply control system provided by the present application, after the step of controlling the outdoor unit to supply power to the power-off communication device again through the communication line, the method further includes:

[0029] If it is detected through the scheduled inspection communication strategy that the communication device that has lost power is still in the communication power-off state, the outdoor unit is controlled to upload the address of the communication device that has lost power to the server.

[0030] This application can detect the communication equipment in the system in real time. When the communication equipment is abnormal, it can quickly locate the specific address and upload it to the server in time, thereby achieving rapid positioning and maintenance, reducing labor costs and maintenance costs.

[0031] According to a control method for an air-conditioning communication power supply control system provided by the present application, the scheduled inspection communication strategy includes:

[0032] At each set interval, the number of communication device addresses communicating with the outdoor unit is queried.

[0033] According to a control method of an air-conditioning communication power supply control system provided by the present application, before the step of controlling the outdoor unit to communicate with the communication device through the communication line using a timed inspection communication strategy to detect the communication status of the communication device, the method further includes:

[0034] detecting the current of the communication line;

[0035] determining whether the communication line is in an abnormal state according to the current of the communication line;

[0036] If the communication line is in a normal state, saving the address number of the communication device;

[0037] If the communication line is in an abnormal state, the outdoor unit is controlled to reset so that the communication line returns to a normal state.

[0038] According to a control method for an air-conditioning communication power supply control system provided by the present application, the step of detecting the communication status of the communication device includes:

[0039] comparing the queried number of communication device addresses communicating with the outdoor unit with the stored number of communication device addresses;

[0040] If the number of the queried communication device addresses communicating with the outdoor unit is less than the number of the stored communication device addresses, it is determined that the communication devices corresponding to the redundant addresses in the stored communication device addresses are in a communication power-off state. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in this application or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0042] FIG1 is a schematic diagram of the structure of an air-conditioning communication power supply control system provided by the present application;

[0043] FIG2 is a second structural diagram of the air-conditioning communication power supply control system provided by the present application;

[0044] FIG3 is a flow chart of a control method of an air-conditioning communication power supply control system provided by the present application;

[0045] FIG4 is a second flow chart of the control method of the air-conditioning communication power supply control system provided in the present application.

[0046] Reference numerals:

[0047] 100: Communication equipment;

[0048] 101: Indoor unit; 102: Wired controller; 103: Central controller; 104: Temperature controller;

[0049] 200: Communication line;

[0050] 300: outdoor unit;

[0051] 301: control module; 3011: main control unit; 3012: power supply circuit;

[0052] 3013: Current detection circuit; 3014: Power supply output control circuit;

[0053] 3015: Communication circuit; 3016: Communication interface; 3017: Storage unit;

[0054] 400: first power supply;

[0055] 500: Second power supply. DETAILED DESCRIPTION

[0056] To make the objectives, technical solutions, and advantages of this application more clear, the technical solutions in this application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0057] In the description of the embodiments of the present application, it should be noted that the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0058] In the description of the embodiments of this application, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on the specific circumstances.

[0059] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0060] The air conditioning communication power supply control system and method of the present application will be described below with reference to FIG. 1 to FIG. 4 .

[0061] According to an embodiment of the first aspect of the present application, as shown in FIG1 and FIG2 , the air conditioning communication power supply control system provided by the present application mainly includes: a communication device 100, a communication line 200, and an outdoor unit 300. The communication device 100 is connected to a first power source 400; the communication line 200 is connected to the communication device 100; and the outdoor unit 300 includes a control module 301, which is respectively connected to the communication line 200 and the second power source 500. The control module 301 is used to control the outdoor unit 300 to communicate with the communication device 100 via the communication line 200 using a timed inspection communication strategy, so as to detect the communication status of the communication device 100, and to determine if the communication device 100 is in a communication power-off state, and to control the outdoor unit 300 to supply power to the powered-off communication device 100 via the communication line 200.

[0062] Specifically, when an abnormal power outage occurs to the running communication device 100, that is, the first power supply 400 is powered off, the communication is interrupted. At this time, the second power supply 500 of the outdoor unit 300 can be controlled to supply power to the powered-off communication device 100 via the communication line 200, so that the communication device 100 can resume communication. In this way, the outdoor unit 300 and the communication device 100 can still maintain communication, and the communication device 100 can complete the specified operation, avoiding the impact of power outage on the operating stability of the entire machine.

[0063] Therefore, the air-conditioning communication power supply control system provided in the embodiment of the present application can simultaneously transmit power signals and communication signals through the communication line 200, and even when the air-conditioning communication device 100 loses power, each communication device 100 in the air-conditioning system can still achieve normal power supply and communication operation, implement the operation instructions, and improve the operational stability and reliability of the entire machine.

[0064] According to one embodiment of the present application, the first power supply 400 can be AC ​​power, that is, the communication device 100 is directly connected to the AC power supply, and the second power supply 500 can be a distribution room, that is, the control module 301 of the outdoor unit 300 is connected to the power supply of the distribution room.

[0065] Therefore, in the embodiment of the present application, when the air-conditioning communication equipment 100 has no AC power, power can be supplied to the communication line 200 through the distribution room of the outdoor unit 300, thereby transmitting power to the power-off communication equipment 100, so that the communication equipment 100 can still complete the operation instructions after the communication abnormality, avoiding affecting the stability of the entire machine.

[0066] According to one embodiment of the present application, as shown in Figure 2, the control module 301 of the outdoor unit 300 of the present application mainly includes: a main control unit 3011, a power supply circuit 3012, a current detection circuit 3013, a power supply output control circuit 3014, a communication circuit 3015 and a communication interface 3016.

[0067] The main control unit 3011 is connected to the second power supply 500; the power supply circuit 3012 is connected to the main control unit 3011; the current detection circuit 3013 is respectively connected to the main control unit 3011 and the power supply circuit 3012, and is used to detect whether the communication line 200 is in an abnormal state; the power supply output control circuit 3014 is respectively connected to the main control unit 3011 and the current detection circuit 3013, and is used to identify the detection signal of the current detection circuit 3013 and obtain the instruction of the main control unit 3011, and control the power signal output of the second power supply 500; the communication circuit 3015 is connected to the main control unit 3011, and is used to control the communication signal output of the outdoor unit 300; the communication interface 3016 is respectively connected to the power supply output control circuit 3014, the communication circuit 3015 and the communication line 200, and is used to synchronously integrate the power signal and the communication signal and output them to the communication line 200.

[0068] For example, the main control unit 3011 includes a microprocessor and related peripheral circuits. The main control unit 3011 is responsible for the logic control of the entire system, receives peripheral signals, outputs according to corresponding logic, and issues related control instructions.

[0069] The power supply circuit 3012 includes a switching power supply and related protection circuits. The power supply circuit 3012 is responsible for converting the second power supply 500 into a DC power supply and providing power signals of various voltage values.

[0070] The current detection circuit 3013 includes a related detection circuit composed of commonly used transistors, capacitors, sampling resistors and other devices. The current detection circuit 3013 is used to detect the current of the communication line 200 and determine whether there is a short circuit or other abnormal phenomena. The circuit can quickly detect abnormalities in the communication line 200 and promptly output detection signals to the main control unit 3011 and the power supply output control circuit 3014.

[0071] The power supply output control circuit 3014 includes a power switching device and related peripheral devices. The power supply output control circuit 3014 is used to identify the detection signal of the current detection circuit 3013 and obtain the instructions of the main control unit 3011, and effectively output the power signal. At the same time, the circuit has a power protection function.

[0072] According to an embodiment of the present application, as shown in FIG. 2 , the control module 301 of the outdoor unit 300 further includes a storage unit 3017 , which is connected to the main control unit 3011 and is used to store the number of addresses of the communication device 100 .

[0073] According to one embodiment of the present application, as shown in FIG2 , the communication device 100 communicating with the outdoor unit 300 includes: an indoor unit 101 connected in parallel to the communication line 200 , a wired controller 102 , a centralized controller 103 , a temperature controller 104 and other devices.

[0074] The control method of the air-conditioning communication power supply control system provided in the present application will be described below. The control method of the air-conditioning communication power supply control system described below can be referenced to the air-conditioning communication power supply control system described above.

[0075] According to an embodiment of the second aspect of the present application, as shown in FIG3 , the present application further provides a control method for the air-conditioning communication power supply control system of the above embodiment, which mainly includes the following steps.

[0076] S100 , the control outdoor unit 300 adopts a timed inspection communication strategy to communicate with the communication device 100 via the communication line 200 to detect the communication status of the communication device 100 .

[0077] S200 , determining that the communication device 100 is in a communication power-off state, and controlling the outdoor unit 300 to supply power to the power-off communication device 100 through the communication line 200 .

[0078] The air-conditioning communication power supply control method provided in the embodiment of the present application can detect the communication equipment 100 in the system in real time, and can control the outdoor unit 300 to supply power to the communication equipment 100 through the communication line 200 when the air-conditioning communication equipment 100 loses power, so that each communication equipment 100 in the air-conditioning system can still realize the power supply and communication functions, thereby completing the specified operation and improving the operation stability and reliability of the entire machine.

[0079] According to one embodiment of the present application, after the step of controlling the outdoor unit 300 to supply power to the power-off communication device 100 through the communication line 200, the method further includes:

[0080] If it is detected through the regular inspection communication strategy that the communication device 100 that has lost power is still in the communication power-off state, the outdoor unit 300 is controlled to supply power to the communication device 100 that has lost power again through the communication line 200 .

[0081] Specifically, after the control outdoor unit 300 supplies power to the powered-off communication device 100 once through the communication line 200, if it is still detected that the powered-off communication device 100 is still in the communication power-off state, the control outdoor unit 300 outputs power to the powered-off communication device 100 again, thereby improving the communication success rate.

[0082] According to one embodiment of the present application, after the step of controlling the outdoor unit 300 to supply power to the power-off communication device 100 again through the communication line 200, the method further includes:

[0083] If it is detected through the regular inspection communication strategy that the communication device 100 that has lost power is still in the communication power-off state, the outdoor unit 300 is controlled to upload the address of the communication device 100 that has lost power to the server.

[0084] Specifically, after two power supplies, the communication device 100 that has lost power is still in a communication power-off state, indicating that the communication has failed. At this time, the address of the communication device 100 that has lost power is reported to the server as an exception, thereby accurately locating the abnormal communication device 100. Maintenance personnel can quickly find the abnormal communication device 100 for maintenance based on the address prompt information.

[0085] According to one embodiment of the present application, the scheduled inspection communication strategy includes:

[0086] At each set time interval, the number of addresses of the communication devices 100 communicating with the outdoor unit 300 is queried to detect whether all the communication devices 100 are online and operating normally.

[0087] According to one embodiment of the present application, before the step of controlling the outdoor unit 300 to communicate with the communication device 100 through the communication line 200 using the scheduled inspection communication strategy to detect the communication status of the communication device 100, the step further includes:

[0088] Detecting the current of the communication line 200;

[0089] Determine whether the communication line 200 is in an abnormal state according to the current of the communication line 200;

[0090] If the communication line 200 is in a normal state, the address number of the communication device 100 is saved;

[0091] If the communication line 200 is in an abnormal state, the outdoor unit 300 is controlled to reset so that the communication line 200 returns to a normal state, thereby allowing the system to operate in a normal communication state.

[0092] According to one embodiment of the present application, the step of detecting the communication status of the communication device 100 includes:

[0093] Compare the queried number of addresses of the communication devices 100 communicating with the outdoor unit 300 with the stored number of addresses of the communication devices 100;

[0094] If the number of the queried addresses of the communication devices 100 communicating with the outdoor unit 300 is less than the number of the stored addresses of the communication devices 100 , it is determined that the communication devices 100 corresponding to the redundant addresses in the stored addresses of the communication devices 100 are in a communication power-off state.

[0095] The control method of the air-conditioning communication power supply control system provided by the present application is further described below with reference to specific examples. As shown in FIG4 , the control method provided by the present application mainly includes the following steps.

[0096] After the system is powered on, each device starts to run. First, the current detection circuit 3013 detects the current of the communication line 200. The main control unit 3011 determines whether the current of the communication line 200 is short-circuited abnormally. When the communication line 200 is abnormal, the loading of the DC power signal is cut off, and the entire outdoor unit 300 is reset, so that the outdoor unit 300 restarts and initializes related data. When the communication line 200 returns to normal, the address number of the communication device 100 communicating with the outdoor unit 300 is saved.

[0097] The outdoor unit 300 starts to operate normally. During the operation, it continuously detects the communication device 100 communicating with the outdoor unit 300. The outdoor unit 300 and the communication device 100 continue to perform heartbeat communication, that is, broadcasting data at intervals to query whether the communication devices 100 are all online and operating normally. In other words, it performs regular inspections on the number of addresses of the communication devices 100 communicating with the outdoor unit 300, and determines whether the number of detected addresses of the communication devices 100 is less than the number of saved addresses of the communication devices 100. If not, it means that all communication devices 100 are communicating normally, and the regular inspections on the number of addresses of the communication devices 100 communicating with the outdoor unit 300 continue. If so, it means that the number of addresses of the communication devices 100 is lost, and the communication device 100 loses power.

[0098] At this time, continue to determine whether the power supply times n is less than 2. If so, control the outdoor unit 300 to start outputting power to the communication device 100 that has lost power. Under normal circumstances, the communication device 100 that has lost power will start to resume communication with the outdoor unit 300 after obtaining power. In this way, the communication device 100 can still communicate through the outdoor unit 300 when there is no mains power. The communication device 100 can complete the specified operation and avoid affecting the operating stability of the entire machine due to power failure.

[0099] After the outdoor unit 300 supplies power to the communication device 100 that has lost power, if it detects that the number of addresses of the communication device 100 is less than the number of addresses stored, and the communication device 100 that has lost power cannot communicate, the outdoor unit 300 attempts to supply power to the communication device 100 again. After supplying power twice, if it detects that the number of addresses of the communication device 100 is less than the number of addresses stored, and the communication device 100 that has lost power still cannot communicate, it indicates that the communication device 100 has failed to communicate. At this time, the outdoor unit 300 reports the address of the current abnormal communication device 100 to the server, thereby accurately locating the abnormal communication device 100. Maintenance personnel can quickly find the abnormal communication device 100 for maintenance based on the address prompt information.

[0100] For example, the communication device 100 includes four devices: the indoor unit 101, the wired controller 102, the central controller 103, and the temperature controller 104. When it is detected that the devices communicating with the outdoor unit 300 are the indoor unit 101 and the wired controller 102, it means that the communication between the indoor unit 101 and the wired controller 102 is normal, and the central controller 103 and the temperature controller 104 are powered off, indicating abnormal communication. At this time, the outdoor unit 300 is controlled to supply power to the central controller 103 and the temperature controller 104 for the first time. After the power is supplied, the communication device 103 communicating with the outdoor unit 300 is detected. 0 address quantity. If it is detected that the communication between the central controller 103 and the temperature controller 104 is still abnormal, the outdoor unit 300 is controlled to supply power to the central controller 103 and the temperature controller 104 for the second time. After the power is supplied, the number of addresses of the communication device 100 communicating with the outdoor unit 300 is detected again. If the communication between the central controller 103 and the temperature controller 104 still fails, the addresses of the central controller 103 and the temperature controller 104 are reported to the server so that maintenance personnel can quickly find the central controller 103 and the temperature controller 104 for maintenance according to the address prompt information.

[0101] If after the first power supply, only the communication of the centralized controller 103 is detected to be still abnormal, then the outdoor unit 300 is controlled to supply power to the centralized controller 103 for the second time, and then detect again after the power supply is completed. If the centralized controller 103 still fails to communicate, then the address of the centralized controller 103 is reported to the server.

[0102] Therefore, the control method of the air-conditioning communication power supply control system provided in the embodiment of the present application can detect the communication equipment 100 in the system in real time. When the communication equipment 100 is abnormal, it can quickly locate the specific address and upload it to the server in time, thereby realizing rapid positioning and maintenance, reducing labor costs and maintenance costs.

[0103] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An air conditioning communication power supply control system, comprising: A communication device connected to the first power source; A communication line connected to the communication device; The outdoor unit includes a control module, which is respectively connected to the communication line and the second power supply, and is used to control the outdoor unit to communicate with the communication device through the communication line using a timed inspection communication strategy to detect the communication status of the communication device, and determine that the communication device is in a communication power-off state, and control the outdoor unit to supply power to the power-off communication device through the communication line.

2. The air conditioning communication power supply control system according to claim 1, wherein: The control module comprises: A main control unit connected to the second power supply; A power supply circuit connected to the main control unit; A current detection circuit, connected to the main control unit and the power supply circuit respectively, for detecting whether the communication line is in an abnormal state; A power supply output control circuit, connected to the main control unit and the current detection circuit respectively, for identifying the detection signal of the current detection circuit and obtaining the instruction of the main control unit, and controlling the power supply signal output of the second power supply; A communication circuit, connected to the main control unit, for controlling the communication signal output of the outdoor unit; The communication interface is respectively connected to the power supply output control circuit, the communication circuit and the communication line, and is used to output the power supply signal and the communication signal to the communication line.

3. The air conditioning communication power supply control system according to claim 2, wherein: The control module also includes: A storage unit is connected to the main control unit and is used to store the number of addresses of the communication device.

4. The air conditioning communication power supply control system according to any one of claims 1 to 3, wherein: The communication equipment includes: an indoor unit, a wire controller, a centralized controller and a temperature controller connected in parallel to the communication line.

5. A control method for an air conditioning communication power supply control system according to any one of claims 1 to 4, comprising: Controlling the outdoor unit to communicate with the communication device through the communication line using a timed inspection communication strategy to detect the communication status of the communication device; It is determined that the communication device is in a communication power-off state, and the outdoor unit is controlled to supply power to the power-off communication device through the communication line.

6. The control method of the air conditioning communication power supply control system according to claim 5, wherein: After controlling the outdoor unit to supply power to the power-off communication device through the communication line, the method further includes: If it is detected through the scheduled inspection communication strategy that the communication device that has lost power is still in a communication power-off state, the outdoor unit is controlled to supply power to the communication device that has lost power again through the communication line.

7. The control method of the air conditioning communication power supply control system according to claim 6, wherein: After controlling the outdoor unit to supply power to the power-off communication device again through the communication line, the method further includes: If it is detected through the scheduled inspection communication strategy that the communication device that has lost power is still in a communication power-off state, the outdoor unit is controlled to upload the address of the communication device that has lost power to the server.

8. The control method of the air conditioning communication power supply control system according to claim 5, wherein: The scheduled inspection communication strategy includes: At each set interval, the number of communication device addresses communicating with the outdoor unit is queried.

9. The control method of the air conditioning communication power supply control system according to claim 8, wherein: Before controlling the outdoor unit to communicate with the communication device through the communication line using a timed inspection communication strategy to detect the communication status of the communication device, the method further includes: detecting the current of the communication line; determining whether the communication line is in an abnormal state according to the current of the communication line; If the communication line is in a normal state, saving the address number of the communication device; If the communication line is in an abnormal state, the outdoor unit is controlled to reset so that the communication line returns to a normal state.

10. The control method of the air conditioning communication power supply control system according to claim 9, wherein: The detecting the communication status of the communication device comprises: comparing the queried number of communication device addresses communicating with the outdoor unit with the stored number of communication device addresses; If the number of the queried communication device addresses communicating with the outdoor unit is less than the number of the stored communication device addresses, it is determined that the communication devices corresponding to the redundant addresses in the stored communication device addresses are in a communication power-off state.

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