Air conditioner communication power supply control system and method

What is AI technical title?
AI technical title is built by Patsnap AI team. It summarizes the technical point description of the patent document.
By using control modules and communication lines in the air-conditioning system to transmit power signals and communication signals at the same time, the problem of communication interruption in the equipment in the air-conditioning system is solved, and the power supply and communication continuity of the equipment in the case of power outage is achieved, and the stability and reliability of the system are improved.

CN120020466APending Publication Date: 2025-05-20QINGDAO HAIER INTELLIGENT BUILDING TECHNOLOGY CO LTD +4

View PDF 0 Cites 0 Cited by

Patent Information

Application Number: CN202311546706.3
Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner
Filing Date: 2023-11-20
Publication Date: 2025-05-20

AI Technical Summary

Technical Problem

In the air-conditioning system, the communication cable cannot load the power signal, resulting in communication interruption when the equipment is powered down, and data cannot be saved in time or the operating state is restored, affecting the stability of the system.

Method used

By introducing a control module into the air conditioning system, the power supply signal and communication signal are transmitted simultaneously using the communication line, and the status of the communication equipment is detected in real time. When the equipment is powered off, power is supplied to the equipment through the communication line to ensure the continuity of communication and power supply.

Benefits of technology

It realizes that the communication equipment can still maintain power supply and communication functions when power is lost in the air-conditioning system, ensures that the system can complete designated operations and improves the stability and reliability of the entire machine operation.

✦ Generated by Eureka AI based on patent content.

Smart Images

Figure CN120020466A_ABST

Patent Text Reader

Abstract

The invention relates to the technical field of air conditioners, and provides an air conditioner communication power supply control system and method.The air conditioner communication power supply control system comprises communication equipment, a communication line and an outdoor unit, and the communication equipment is connected with a first power source; the communication line is connected with communication equipment; the outdoor unit comprises a control module, and the control module is connected with the communication line and the second power supply and used for controlling the outdoor unit to communicate with the communication equipment through the communication line by adopting a timing inspection communication strategy so as to detect the communication state of the communication equipment and determine that the communication equipment is in a communication power-down state. And controlling the outdoor unit to supply power to the power-down communication equipment through the communication line. Under the condition that the communication equipment of the air conditioner is powered down, all the communication equipment in the air conditioner system can still achieve the functions of power supply and communication, so that specified operation is completed, and the running stability and reliability of the whole machine are improved.

Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and particularly to an air conditioner communication power supply control system and method. Background Art

[0002] Currently, the equipment communication and power supply of the air conditioner system are deployed using independent cables. The communication cable cannot carry a power signal and cannot output the power signal and the communication signal simultaneously. When the equipment of the air conditioner system experiences abnormal power failure, the communication is interrupted, resulting in the inability of the equipment of the air conditioner system to save critical data in a timely manner and set it to the specified operating state, thus causing the operation of the air conditioner system to be unstable. Summary of the Invention

[0003] The present invention provides an air conditioner communication power supply control system and method, which can enable each communication device in the air conditioner system to still achieve the functions of power supply and communication when the air conditioner communication device loses power, so as to complete the specified operation and improve the operation stability and reliability of the whole machine.

[0004] The present invention provides an air conditioner communication power supply control system, including:

[0005] A communication device, connected to a first power supply;

[0006] A communication line, connected to the communication device;

[0007] An outdoor unit, including a control module, the control module is respectively connected to the communication line and a second power supply, and is used to control the outdoor unit to communicate with the communication device through the communication line by adopting a timed patrol communication strategy to detect the communication state of the communication device, and when it is determined that the communication device is in a communication power failure state, control the outdoor unit to supply power to the powered-off communication device through the communication line.

[0008] The air conditioner communication power supply control system provided by the present invention can transmit the power signal and the communication signal simultaneously through the communication line, and can detect the communication devices in the system in real time. When the air conditioner communication device loses power, each communication device in the air conditioner system can still achieve the functions of power supply and communication, so as to complete the specified operation and improve the operation stability and reliability of the whole machine.

[0009] According to an air conditioner communication power supply control system provided by the present invention, the control module includes:

[0010] A main control unit, connected to the second power supply;

[0011] A power supply circuit, connected to the main control unit;

[0012] A current detection circuit, respectively connected to the main control unit and the power supply circuit, and is used to detect whether the communication line is in an abnormal state;

[0013] A power supply output control circuit, which is respectively connected to the main control unit and the current detection circuit, is used to identify the detection signal of the current detection circuit and obtain the instruction of the main control unit, and control the power signal output of the second power supply;

[0014] A communication circuit, which is connected to the main control unit, is used to control the communication signal output of the outdoor unit;

[0015] A communication interface, which is respectively connected to the power supply output control circuit, the communication circuit and the communication line, is used to output the power signal and the communication signal to the communication line.

[0016] According to an air-conditioning communication power supply control system provided by the present invention, the control module further includes:

[0017] A storage unit, which is connected to the main control unit, is used to store the number of addresses of the communication devices.

[0018] According to an air-conditioning communication power supply control system provided by the present invention, the communication devices include: an indoor unit, a wired controller, a centralized controller and a temperature controller connected in parallel to the communication line.

[0019] The present invention also provides a control method for the above-mentioned air-conditioning communication power supply control system, including:

[0020] Controlling the outdoor unit to communicate with the communication devices through the communication line by using a timed patrol communication strategy to detect the communication status of the communication devices;

[0021] Determining that the communication device is in a communication power-off state, and controlling the outdoor unit to supply power to the powered-off communication device through the communication line.

[0022] The air-conditioning communication power supply control method provided by the present invention can detect the communication devices in the system in real time, and can control the outdoor unit to supply power to the communication devices through the communication line when the air-conditioning communication devices are powered off, so that each communication device in the air-conditioning system can still realize the functions of power supply and communication, thereby completing the specified operations and improving the operation stability and reliability of the whole machine.

[0023] According to a control method for an air-conditioning communication power supply control system provided by the present invention, after the step of controlling the outdoor unit to supply power to the powered-off communication device through the communication line, it further includes:

[0024] If it is detected through the timed patrol communication strategy that the powered-off communication device is still in a communication power-off state, controlling the outdoor unit to supply power to the powered-off communication device again through the communication line.

[0025] A control method for an air conditioner communication power supply control system provided by the present invention, after the step of controlling the outdoor unit to supply power to the powered-off communication device again through the communication line, further includes:

[0026] If it is detected through the timed patrol communication strategy that the powered-off communication device is still in a communication power-off state, control the outdoor unit to upload the address of the powered-off communication device to the server.

[0027] The present invention can detect the communication devices in the system in real time, quickly locate the specific address after the communication device is abnormal and upload it to the server in time, so as to achieve quick location and repair, reduce labor costs and repair costs.

[0028] A control method for an air conditioner communication power supply control system provided by the present invention, the timed patrol communication strategy includes:

[0029] Query the number of communication device addresses communicating with the outdoor unit at intervals of a set time period.

[0030] A control method for an air conditioner communication power supply control system provided by the present invention, before the step of controlling the outdoor unit to communicate with the communication device through the communication line by using a timed patrol communication strategy to detect the communication state of the communication device, further includes:

[0031] Detect the current of the communication line;

[0032] Judge whether the communication line is in an abnormal state according to the current of the communication line;

[0033] If the communication line is in a normal state, save the number of communication device addresses;

[0034] If the communication line is in an abnormal state, control the outdoor unit to reset to make the communication line return to a normal state.

[0035] A control method for an air conditioner communication power supply control system provided by the present invention, the step of detecting the communication state of the communication device includes:

[0036] Compare the number of communication device addresses queried that communicate with the outdoor unit with the saved number of communication device addresses;

[0037] If the number of communication device addresses queried that communicate with the outdoor unit is less than the saved number of communication device addresses, determine that the communication devices corresponding to the redundant addresses in the saved communication device addresses are in a communication power-off state. Description of the Drawings

[0038] To more clearly illustrate the technical solutions in the present invention or related technologies, the following will briefly introduce the drawings required for use in the embodiments or related technology descriptions. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0039] Figure 1 It is one of the structural schematic diagrams of the air conditioner communication power supply control system provided by the present invention;

[0040] Figure 2 It is another structural schematic diagram of the air conditioner communication power supply control system provided by the present invention;

[0041] Figure 3 It is one of the flow schematic diagrams of the control method of the air conditioner communication power supply control system provided by the present invention;

[0042] Figure 4 It is another flow schematic diagram of the control method of the air conditioner communication power supply control system provided by the present invention.

[0043] Reference numerals:

[0044] 100: Communication device;

[0045] 101: Indoor unit; 102: Remote controller; 103: Central controller; 104: Temperature controller;

[0046] 200: Communication line;

[0047] 300: Outdoor unit;

[0048] 301: Control module; 3011: Main control unit; 3012: Power supply circuit;

[0049] 3013: Current detection circuit; 3014: Power supply output control circuit;

[0050] 3015: Communication circuit; 3016: Communication interface; 3017: Storage unit;

[0051] 400: First power supply;

[0052] 500: Second power supply. Detailed implementation manners

[0053] To make the objectives, technical solutions and advantages of the present invention more clear, the technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0054] In the description of the embodiments of the present invention, it should be noted that the terms "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0055] In the description of the embodiments of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0056] In the description of this specification, the descriptions referring to terms such as "an embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present invention. 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 may be combined in any one or more embodiments or examples in a suitable manner. In addition, without conflict, those skilled in the art may combine the different embodiments or examples described in this specification and the features of the different embodiments or examples.

[0057] The following Figures 1-4 describes the air-conditioning communication power supply control system and method of the present invention.

[0058] According to an embodiment of the first aspect of the present invention, with reference to Figure 1 and Figure 2As shown in the figure, the air conditioner communication power supply control system provided by the present invention mainly includes components such as a communication device 100, a communication line 200, and an outdoor unit 300. Among them, the communication device 100 is connected to a first power supply 400; the communication line 200 is connected to the communication device 100; the outdoor unit 300 includes a control module 301, and the control module 301 is respectively connected to the communication line 200 and a second power supply 500, and is used to control the outdoor unit 300 to communicate with the communication device 100 through the communication line 200 by adopting a timed patrol communication strategy, so as to detect the communication status of the communication device 100, and when it is determined that the communication device 100 is in a communication power-off state, control the outdoor unit 300 to supply power to the powered-off communication device 100 through the communication line 200.

[0059] Specifically, when the operating communication device 100 experiences abnormal power-off, that is, when 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 supply power to the powered-off communication device 100 through the communication line 200, so that the communication device 100 resumes 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 operations, avoiding affecting the operation stability of the whole machine due to power-off.

[0060] Therefore, in the air conditioner communication power supply control system provided by the embodiments of the present invention, the power supply signal and the communication signal can be transmitted simultaneously through the communication line 200, and when the air conditioner communication device 100 is powered off, each communication device 100 in the air conditioner system can still achieve normal power supply and communication operation, realize the operation of the operation instruction, and improve the operation stability and reliability of the whole machine.

[0061] According to an embodiment of the present invention, the first power supply 400 can be the commercial power, that is, the communication device 100 is directly connected to the commercial power supply, and the second power supply 500 can be the power distribution room, that is, the control module 301 of the outdoor unit 300 is connected to the power supply of the power distribution room.

[0062] Therefore, in the embodiments of the present invention, when there is no commercial power in the air conditioner communication device 100, the power distribution room of the outdoor unit 300 can supply power to the communication line 200, so as to transmit the power to the powered-off communication device 100, and the communication device 100 can still complete the operation instruction after communication anomaly, avoiding affecting the stability of the whole machine.

[0063] According to an embodiment of the present invention, referring to Figure 2 As shown in the figure, the control module 301 of the outdoor unit 300 of the present invention 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.

[0064] Among them, 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 and output the power signal and the communication signal to the communication line 200.

[0065] For example, the main control unit 3011 includes a microprocessor and related peripheral circuits. The main control unit 3011 is responsible for the logical control of the entire system, receives peripheral signals, outputs according to corresponding logic, and issues relevant control instructions.

[0066] 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.

[0067] The current detection circuit 3013 includes a related detection circuit composed of common triodes, capacitors, sampling resistors and other devices. The current detection circuit 3013 is used to detect the current of the communication line 200, judge whether there is a short circuit and other abnormal phenomena. This circuit can quickly detect the abnormality of the communication line 200 and timely output the detection signal to the main control unit 3011 and the power supply output control circuit 3014.

[0068] 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 instruction of the main control unit 3011, effectively control the output of the power signal, and at the same time this circuit has a power protection function.

[0069] According to an embodiment of the present invention, referring to Figure 2 As shown, the control module 301 of the outdoor unit 300 further includes: a storage unit 3017, and the storage unit 3017 is connected to the main control unit 3011, and is used to store the number of addresses of the communication device 100.

[0070] According to an embodiment of the present invention, referring to Figure 2As shown, the communication device 100 communicating with the outdoor unit 300 includes devices such as the indoor unit 101, the wired controller 102, the centralized controller 103, and the temperature controller 104 connected in parallel to the communication line 200.

[0071] Next, the control method of the air conditioner communication power supply control system provided by the present invention will be further described. The control method of the air conditioner communication power supply control system described below can be mutually referred to with the air conditioner communication power supply control system described above.

[0072] According to an embodiment of the second aspect of the present invention, referring to Figure 3 As shown, the present invention also provides a control method for the air conditioner communication power supply control system of the above embodiment, which mainly includes the following steps:

[0073] S100. Control the outdoor unit 300 to communicate with the communication device 100 through the communication line 200 using a timed patrol communication strategy to detect the communication status of the communication device 100.

[0074] S200. Determine that the communication device 100 is in a communication power-off state, and control the outdoor unit 300 to supply power to the powered-off communication device 100 through the communication line 200.

[0075] The air conditioner communication power supply control method provided by the embodiments of the present invention can detect the communication device 100 in the system in real time, and can control the outdoor unit 300 to supply power to the communication device 100 through the communication line 200 when the air conditioner communication device 100 is powered off, so that each communication device 100 in the air conditioner system can still achieve the functions of power supply and communication, thereby completing the specified operations and improving the operation stability and reliability of the whole machine.

[0076] According to an embodiment of the present invention, after the step of controlling the outdoor unit 300 to supply power to the powered-off communication device 100 through the communication line 200, it further includes:

[0077] If it is detected through the timed patrol communication strategy that the powered-off communication device 100 is still in a communication power-off state, control the outdoor unit 300 to supply power to the powered-off communication device 100 again through the communication line 200.

[0078] Specifically, when the outdoor unit 300 supplies power to the powered-off communication device 100 through the communication line 200 once, if it is still detected that the powered-off communication device 100 is still in a communication power-off state, at this time, control the outdoor unit 300 to output power to the powered-off communication device 100 again, thereby improving the communication success rate.

[0079] According to an embodiment of the present invention, after the step of controlling the outdoor unit 300 to supply power to the powered-off communication device 100 again through the communication line 200, it further includes:

[0080] If it is detected by the regular inspection communication strategy that the powered-off communication device 100 is still in the communication power-off state, the outdoor unit 300 is controlled to upload the address of the powered-off communication device 100 to the server.

[0081] Specifically, after two power supplies, if the powered-off communication device 100 is still in the communication power-off state, it indicates communication failure. At this time, the address of the powered-off communication device 100 is reported as an exception to the server, so as to accurately locate the abnormal communication device 100, and the maintenance personnel can quickly find the abnormal communication device 100 for maintenance according to the address prompt information.

[0082] According to an embodiment of the present invention, the regular inspection communication strategy includes:

[0083] At every set time interval, query the number of addresses of the communication devices 100 communicating with the outdoor unit 300 to detect whether all the communication devices 100 are online and operating normally.

[0084] According to an embodiment of the present invention, before the step of controlling the outdoor unit 300 to communicate with the communication device 100 through the communication line 200 by using the regular inspection communication strategy to detect the communication state of the communication device 100, it further includes:

[0085] Detect the current of the communication line 200;

[0086] According to the current of the communication line 200, judge whether the communication line 200 is in an abnormal state;

[0087] If the communication line 200 is in a normal state, save the number of addresses of the communication device 100;

[0088] If the communication line 200 is in an abnormal state, control the outdoor unit 300 to reset, so that the communication line 200 returns to a normal state, so that the system can operate in a normal communication state.

[0089] According to an embodiment of the present invention, the step of detecting the communication state of the communication device 100 includes:

[0090] Compare the number of addresses of the communication devices 100 queried for communicating with the outdoor unit 300 with the saved number of addresses of the communication device 100;

[0091] If the number of addresses of the communication devices 100 queried for communicating with the outdoor unit 300 is less than the saved number of addresses of the communication device 100, determine that the communication devices 100 corresponding to the redundant addresses among the saved addresses of the communication device 100 are in the communication power-off state.

[0092] The following further describes the control method of the air-conditioning communication power supply control system provided by the present invention in combination with specific examples. Refer to Figure 4 As shown, the control method provided by the present invention mainly includes the following steps:

[0093] 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 supply signal is cut off, and the entire outdoor unit 300 is reset to make the outdoor unit 300 run again and initialize relevant data. When the communication line 200 returns to normal, the number of addresses of the communication device 100 communicating with the outdoor unit 300 is saved.

[0094] The outdoor unit 300 starts to run 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 continuously perform heartbeat communication, that is, broadcast data at intervals to query whether all the communication devices 100 are online and running normally. That is, it also performs regular inspection on the number of addresses of the communication device 100 communicating with the outdoor unit 300, and determines whether the detected number of addresses of the communication device 100 is less than the saved number of addresses of the communication device 100. If not, it means that all the communication devices 100 communicate normally, and the regular inspection on the number of addresses of the communication device 100 communicating with the outdoor unit 300 continues; if so, it means that the number of addresses of the communication device 100 is lost, and there is a power-off phenomenon of the communication device 100.

[0095] At this time, it continues to judge whether the power supply times n is less than 2. If so, it controls the outdoor unit 300 to start outputting power for the power-off communication device 100 to use. Under normal circumstances, after the power-off communication device 100 obtains the power, it starts to resume communication with the outdoor unit 300. In this way, the communication device 100 can still communicate through the power supply of the outdoor unit 300 without commercial power, and the communication device 100 can complete the specified operations, avoiding affecting the operation stability of the whole machine due to power-off.

[0096] After the outdoor unit 300 outputs power to the power-off communication device 100 once, if it is detected again that the number of addresses of the communication device 100 is less than the saved number of addresses of the communication device 100 and the power-off communication device 100 cannot communicate, the outdoor unit 300 tries to output power to the power-off communication device 100 again. After the power supply times reach two, if it is detected again that the number of addresses of the communication device 100 is less than the saved number of addresses of the communication device 100 and the power-off communication device 100 still cannot communicate, it means that the communication of the power-off communication device 100 fails. At this time, the outdoor unit 300 reports the address of the current abnormal communication device 100 to the server, so as to accurately locate the abnormal communication device 100. The maintenance personnel can quickly find the abnormal communication device 100 for maintenance according to the address prompt information.

[0097] For example, the communication device 100 includes four devices: an indoor unit 101, a wired controller 102, a centralized controller 103, and a 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 indicates that the communication between the indoor unit 101 and the wired controller 102 is normal, and the centralized controller 103 and the temperature controller 104 are powered off and have abnormal communication. At this time, the outdoor unit 300 is controlled to supply power to the centralized controller 103 and the temperature controller 104 for the first time. After the power supply is completed, the number of addresses of the communication device 100 communicating with the outdoor unit 300 is detected again. If it is detected that the communication between the centralized controller 103 and the temperature controller 104 is still abnormal, the outdoor unit 300 is controlled to supply power to the centralized controller 103 and the temperature controller 104 for the second time. After the power supply is completed, the number of addresses of the communication device 100 communicating with the outdoor unit 300 is detected again. If the centralized controller 103 and the temperature controller 104 still fail to communicate, at this time, the addresses of the centralized controller 103 and the temperature controller 104 are reported to the server so that the maintenance personnel can quickly find the centralized controller 103 and the temperature controller 104 for maintenance according to the address prompt information.

[0098] If it is only detected that the communication of the centralized controller 103 is still abnormal after the first power supply is completed, the outdoor unit 300 is controlled to supply power to the centralized controller 103 for the second time. After the power supply is completed, it is detected again. If the centralized controller 103 still fails to communicate, at this time, the address of the centralized controller 103 is reported to the server.

[0099] Therefore, the control method of the air conditioner communication power supply control system provided by the embodiments of the present invention can detect the communication device 100 in the system in real time, quickly locate the specific address after the communication device 100 is abnormal and upload it to the server in time, so as to achieve quick positioning and maintenance, reduce labor costs and maintenance costs.

[0100] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An air conditioning communication power supply control system, characterized in that: include: 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, characterized in that: 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, characterized in that: 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, characterized in that: 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, characterized in that: include: 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, characterized in that: 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: 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, characterized in that: 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: 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, characterized in that: 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, characterized in that: 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 step 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, characterized in that: The step of 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.