Communication system and communication method for indoor and outdoor units of air conditioner

Abstract

A communication system and communication method for indoor and outdoor units of an air conditioner, which system and method relate to the field of household appliances. The system comprises an indoor portion (11) and an outdoor portion (12), the indoor portion (11) being connected to the outdoor portion (12), wherein the indoor portion (11) receives a remote control signal, and sends a control instruction to the outdoor portion (12) on the basis of the remote control signal; the outdoor portion (12) receives the control instruction, and wakes up a switching power supply interface on the basis of the control instruction, so as to control a switching power supply (2) to operate normally or be on standby; and on the basis of controlling the switching power supply (2) to operate normally, the switching power supply (2) supplies power to the outdoor portion (12), and the indoor portion (11) uses a power supply to charge the outdoor portion; or, on the basis of controlling the switching power supply (2) to be on standby, the outdoor portion (12) discharges to maintain normal communication. The system overcomes the defects of a relatively slow communication rate and not being applicable to large data transmission which are caused by using a strong electric current loop for communication; and realizes weak-current communication between indoor and outdoor units, thereby increasing the communication rate, reducing the design cost, and solving the problem whereby an outdoor unit cannot automatically power off to lower the standby power during the process of weak-current communication.

Description

Communication system and communication method for indoor and outdoor units of air conditioner

[0001] Cross-reference to Related Applications

[0002] This application claims priority to the Chinese patent application No. 202410477987X, filed on April 19, 2024, entitled “Communication system and communication method for indoor and outdoor units of air conditioner”, which is incorporated by reference in its entirety. TECHNICAL FIELD

[0003] The present application relates to the technical field of household appliances, in particular to a communication system and communication method for indoor and outdoor units of air conditioner. BACKGROUND

[0004] With the high development of science and technology and the continuous improvement of people's living standards, the use of air conditioners has gradually become popular. As a household appliance, air conditioners have become an indispensable part of people's daily life.

[0005] Generally, an air conditioner includes an indoor unit and an outdoor unit. Data interaction communication is achieved between the indoor unit and the outdoor unit through a strong current loop.

[0006] However, the communication rate of the above-mentioned strong current loop communication is slow, which cannot be applied to future big data transmission. Moreover, it is controlled by the Internet of Things, so that data transmission and online upgrading of the indoor and outdoor units are difficult to achieve. SUMMARY

[0007] The present application provides a communication system and communication method for indoor and outdoor units of air conditioner, which solves the defects of slow communication rate and inability to apply to big data transmission of the strong current loop communication in the prior art, improves the communication rate, and reduces the design cost.

[0008] The present application provides a communication system for indoor and outdoor units of air conditioner, which includes a communication module and a switching power supply. The communication module includes an indoor part and an outdoor part. The indoor part and the outdoor part are connected, and weak current communication is adopted between the indoor part and the outdoor part. The indoor part receives a remote control signal and sends a control instruction to the outdoor part according to the remote control signal. The outdoor part receives the control instruction and wakes up the switching power supply interface according to the control instruction to control the switching power supply to work normally or standby. Based on controlling the switching power supply to work normally, the switching power supply supplies power to the outdoor part, and the indoor part charges the outdoor part using the power supply. Alternatively, based on controlling the switching power supply to standby, the outdoor part discharges to maintain normal communication.

[0009] According to the communication system for indoor and outdoor units of air conditioner provided by the present application, the indoor part and the outdoor part are connected through a connection line.

[0010] The outdoor part comprises a first interface for receiving control instructions sent by the indoor part, a second interface for sending feedback signals to the indoor part, a power supply unit, an isolation unit and a control unit, wherein: the first end of the isolation unit is connected with the first receiving port of the online line and the first interface respectively, the second end of the isolation unit is connected with the first end of the power supply unit and the control unit respectively; the second end of the power supply unit is grounded; the control unit is connected with the first sending port of the online line through the second interface, and the control unit is connected with the switching power supply.

[0011] According to the air conditioner indoor and outdoor machine communication system provided in the application, the isolation unit adopts a diode, the first end of the isolation unit is one end of the positive electrode of the diode, and the second end of the isolation unit is one end of the negative electrode of the diode; the power supply unit adopts an electrolytic capacitor.

[0012] According to the air conditioner indoor and outdoor machine communication system provided in the application, the outdoor part further comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a first triode and a first capacitor, wherein: the first end of the first resistor is connected with the base of the first triode and the first end of the fifth resistor respectively, and the second end of the first resistor is connected with the first end of the second resistor; the second end of the second resistor is connected with the first end of the third resistor and the VCC pin of the control unit respectively; the first end of the third resistor is connected with the VCC pin, and the second end of the third resistor is connected with the collector of the first triode and the first end of the fourth resistor respectively; the second end of the fourth resistor is connected with the online line and the first end of the first capacitor respectively; the second end of the first capacitor is grounded and connected with the emitter of the first triode and the second end of the fifth resistor respectively.

[0013] According to the air conditioner indoor and outdoor machine communication system provided in the application, the indoor part comprises a third interface, a fourth interface, a sixth resistor, a seventh resistor, a second triode, an eighth resistor, a ninth resistor and a second capacitor, wherein: the first end of the sixth resistor is connected with the fourth interface, and the second end of the sixth resistor is connected with the base of the second triode and the first end of the seventh resistor respectively; the emitter of the second triode is grounded and connected with the second end of the seventh resistor, and the collector of the second triode is connected with the first sending port of the online line through the eighth resistor; the first end of the second capacitor is connected with the third interface and the first end of the ninth resistor respectively, and the second end of the second capacitor is grounded; the second end of the ninth resistor is connected with the second receiving port of the online line.

[0014] According to the air conditioner indoor and outdoor machine communication system provided in the application, the system further comprises a filter circuit module and a rectifier circuit module, the filter circuit module, the rectifier circuit module and the switching power supply are sequentially connected, wherein: the rectifier circuit module converts the current output by the switching power supply into direct current and inputs the direct current into the filter circuit module; the filter circuit module filters the alternating current input by the power system to filter out interference signals and inputs the filtered alternating current into the rectifier circuit module; and the rectifier circuit module converts the filtered alternating current into direct current and inputs the direct current into the switching power supply.

[0015] The application further provides an air conditioner indoor and outdoor machine communication method, which is applied to the air conditioner indoor and outdoor machine communication described in any of the above, and comprises the following steps: the indoor part receives a remote control signal and sends a control instruction to the outdoor part according to the remote control signal; the outdoor part receives the control instruction and wakes up the switching power supply interface according to the control instruction to control the switching power supply to normally work or standby; based on the control of the switching power supply to normally work, the switching power supply supplies power to the outdoor part, and the indoor part charges the outdoor part by using the power supply; or, based on the control of the switching power supply to standby, the outdoor part discharges to maintain normal communication.

[0016] According to the air conditioner indoor and outdoor machine communication method provided in the application, the outdoor part comprises a first interface for receiving the control instruction sent by the indoor part, a second interface for sending a feedback signal to the indoor part, a power supply unit, an isolation unit and a control unit, the outdoor part receives the control instruction and wakes up the switching power supply interface according to the control instruction to control the switching power supply to normally work or standby, and the method comprises the following steps: the outdoor part receives the control instruction sent by the indoor part through the first interface and sends the control instruction to the control unit; and the control unit wakes up the switching power supply interface according to the control instruction to control the switching power supply to standby or normally work.

[0017] Based on the control of the switching power supply to normally work, the switching power supply supplies power to the outdoor part, and the indoor part charges the outdoor part by using the power supply, which comprises the following steps: based on the control of the switching power supply to normally work, the switching power supply supplies power to the control unit to ensure the normal operation of the control unit; and the indoor part charges the power supply unit by using the power supply.

[0018] Based on the control of the switching power supply to standby, the outdoor part discharges to maintain normal communication, which comprises the following steps: based on the control of the switching power supply to standby, the power supply unit supplies power to the control unit to maintain the normal operation of the control unit; and the isolation unit isolates the indoor part and the outdoor part to avoid the power supply unit supplying power to the indoor part.

[0019] The application further provides an electronic device, which comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, and the processor implements the steps of the air conditioner indoor and outdoor machine communication method described in any of the above when executing the program.

[0020] The application further provides a non-transitory computer-readable storage medium, which stores a computer program, and the computer program is executed by a processor to implement the steps of the communication method between the indoor unit and the outdoor unit of the air conditioner.

[0021] The communication system and the communication method between the indoor unit and the outdoor unit of the air conditioner provided by the application can send a control instruction to the outdoor unit according to the received control signal, so that the outdoor unit wakes up the switching power supply interface based on the control instruction, thereby making the switching power supply work normally or standby, realizing the weak current communication between the indoor unit and the outdoor unit, improving the communication rate, and reducing the design cost. In addition, in the case that the switching power supply works normally, the switching power supply supplies power to the outdoor unit, so as to ensure that the outdoor unit can maintain normal communication. In addition, the indoor unit charges the outdoor unit by using the power supply, so as to maintain the normal communication between the indoor unit and the outdoor unit in the case that the switching power supply is in standby, and solve the problem that the outdoor unit cannot be powered off to reduce standby power in the weak current communication process. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can also be obtained by those skilled in the art without any creative effort.

[0023] Fig. 1 is a structural schematic diagram of the communication system between the indoor unit and the outdoor unit of the air conditioner provided by the application;

[0024] Fig. 2 is a structural schematic diagram of the communication system between the indoor unit and the outdoor unit of the air conditioner provided by the application;

[0025] Fig. 3 is a flow schematic diagram of the communication method between the indoor unit and the outdoor unit of the air conditioner provided by the application; and

[0026] Fig. 4 is a structural schematic diagram of the electronic device provided by the application;

[0027] Fig. 4 is a structural schematic diagram of the electronic device provided by the application; DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be described clearly and completely below in combination with the drawings in the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0029] Fig. 1 shows a communication system between indoor and outdoor units of an air conditioner, which comprises a communication module 1 and a switching power supply 2. The communication module 1 comprises an indoor part 11 and an outdoor part 12, which are connected and adopt weak current communication between the indoor part and the outdoor part. Wherein,

[0030] The indoor part 11 receives a remote control signal and sends a control instruction to the outdoor part 12 according to the remote control signal;

[0031] The outdoor part 12 receives the control instruction and wakes up the switching power supply interface according to the control instruction to control the switching power supply 2 to work normally or standby;

[0032] Based on the control of the switching power supply 2 to work normally, the switching power supply 2 supplies power to the outdoor part 12, and the indoor part 11 charges the outdoor part 12 by using the power supply; or, based on the control of the switching power supply 2 to standby, the outdoor part 12 discharges to maintain normal communication.

[0033] It should be noted that the remote control signal is a signal sent by a remote control terminal, which can be a standby instruction or a start instruction; the control instruction is determined according to the remote control signal, such as the remote control signal is a standby instruction, the control instruction is a standby control instruction, such as the remote control signal is a start instruction, the control instruction is a start control instruction. In addition, the power supply used by the indoor part to charge the outdoor part can be the power system, the switching power supply or other power supply described below, which is not limited further here.

[0034] In an optional embodiment, the indoor part 11 and the outdoor part 12 are connected through an online line 3.

[0035] In an optional embodiment, the indoor part and the outdoor part adopt weak current communication mode, such as RS485 communication, etc.

[0036] In the embodiment, the outdoor part 12 comprises a first interface 121 for receiving the control instruction sent by the indoor part 11, a second interface 122 for sending the feedback signal to the indoor part 11, a power supply unit 123, an isolation unit 124 and a control unit 125, wherein: the first end of the isolation unit 124 is connected with the first receiving port of the online line 3 and the first interface 121 respectively, the second end of the isolation unit 124 is connected with the first end of the power supply unit 123 and the control unit 125 respectively; the second end of the power supply unit 123 is grounded; the control unit 125 is connected with the first sending port of the online line 3 through the second interface 122, and the control unit 125 is connected with the switching power supply 2.

[0037] It should be noted that the outdoor part 12 receives the control instruction, and wakes up the switching power supply interface according to the control instruction, so as to control the switching power supply 2 to work normally or standby, comprising: the outdoor part 12 receives the control instruction sent by the indoor part 11 through the first interface 121, and sends it to the control unit 125; the control unit 125 wakes up the switching power supply interface to the switching power supply chip according to the control instruction, so that the switching power supply 2 standby or normal work.

[0038] In addition, based on the control of the switching power supply 2 to work normally, the switching power supply 2 supplies power to the outdoor part 12, and the indoor part 11 charges the outdoor part 12 by using the power supply, comprising: based on the control of the switching power supply 2 to work normally, the switching power supply 2 supplies power to the control unit 125 to ensure the normal operation of the control unit 125; the indoor part 11 charges the power supply unit 123 by using the power supply.

[0039] In addition, based on the control of the switching power supply 2 to standby, the outdoor part 12 discharges to maintain normal communication, comprising: based on the control of the switching power supply 2 to standby, the power supply unit 123 supplies power to the control unit 125 to maintain the normal operation of the control unit 125; the isolation unit 124 isolates the indoor part 11 and the outdoor part 12 to avoid the power supply unit 123 supplying power to the indoor part 11.

[0040] It should be noted that the switching power supply 2 has a self-protection wake-up function, and after protection is generated, the switching power supply 2 stops power supply, which is controlled by the control unit 125. The control unit can adopt a microcontroller unit (MCU), which is not limited here.

[0041] In an optional embodiment, the isolation unit 124 adopts a diode, the first end of the isolation unit 124 is one end of the positive electrode of the diode, and the second end of the isolation unit 124 is one end of the negative electrode of the diode. It should be noted that by adopting the diode, it can be ensured that the circuit is in a connected state when the room interior 11 charges the power supply unit 123 by using the power supply, and the circuit between the room interior 11 and the room exterior 12 is in a disconnected state when the power supply unit 123 supplies power to the control unit 125, thereby avoiding the power supply unit 123 from supplying power to the room interior 11.

[0042] In an optional embodiment, the power supply unit 123 adopts an electrolytic capacitor. It should be noted that by adopting the electrolytic capacitor, the stability of the device operation can be improved, and the electrolytic capacitor has a long service life and a large capacity, can adapt to long-time work, and will not be easily damaged, thereby reducing the replacement of devices and saving costs.

[0043] In an optional embodiment, referring to FIG. 2, the room exterior 11 further includes a first resistor 126, a second resistor 127, a third resistor 128, a fourth resistor 129, a fifth resistor 1210, a first triode 1211, and a first capacitor 1212, wherein: the first end of the first resistor 126 is connected to the base of the first triode 1211 and the first end of the fifth resistor 1210, respectively, and the second end of the first resistor 126 is connected to the first end of the second resistor 127; the second end of the second resistor 127 is connected to the first end of the third resistor 128 and the VCC pin of the control unit 125, respectively; the first end of the third resistor 128 is connected to the VCC pin, and the second end of the third resistor 128 is connected to the collector of the first triode 1211 and the first end of the fourth resistor 129, respectively; the second end of the fourth resistor 1129 is connected to the online line 3 and the first end of the first capacitor 1212, respectively; the second end of the first capacitor 1212 is grounded and connected to the emitter of the first triode 1211 and the second end of the fifth resistor 1210, respectively. It should be noted that the VCC pin is the power supply pin of the general chip of the control unit 125.

[0044] With reference to Fig. 2, the indoor part comprises a third interface 111, a fourth interface 112, a sixth resistor 113, a seventh resistor 114, a second triode 115, an eighth resistor 116, a ninth resistor 117 and a second capacitor 118, wherein: a first end of the sixth resistor 113 is connected with the fourth interface 112, and a second end of the sixth resistor 113 is connected with a base of the second triode 115 and a first end of the seventh resistor 114 respectively; an emitter of the second triode 115 is grounded and connected with a second end of the seventh resistor 114, and a collector of the second triode 115 is connected with a first sending port of the online line 3 through the eighth resistor 116; a first end of the second capacitor 118 is connected with the third interface 111 and a first end of the ninth resistor 117 respectively, and a second end of the second capacitor 118 is grounded; and a second end of the ninth resistor 117 is connected with a second receiving port of the online line 3.

[0045] In an optional embodiment, the indoor part 11 receives a remote control signal and sends a control instruction to the outdoor part according to the remote control signal, comprising: the indoor part 11 sends a control signal to the outdoor part 12 through the fourth interface 112; the indoor part 11 receives a feedback signal sent by the outdoor part 12 through the third interface 111, and the feedback signal comprises state information of the outdoor part 12 after controlling the switching power supply 2 based on the received control signal, such as the actual working frequency of the outdoor unit, the refrigeration state, the heating state and the corresponding temperature, so as to adjust the charging of the power supply unit 123 based on the feedback information, which can be set according to the actual charging and discharging capacity of the power supply unit 123 and the power supply demand of the control unit 124, which is not limited here.

[0046] In an optional embodiment, the system further comprises a filter circuit module 4 and a rectifier circuit module 5, and the filter circuit module 4, the rectifier circuit module 5 and the switching power supply 2 are connected in sequence, wherein: the filter circuit module 4 filters the alternating current input by the power system to filter out interference signals, and inputs the filtered alternating current into the rectifier circuit module 5; the rectifier circuit module 5 converts the filtered alternating current output by the filter circuit module 4 into direct current, and inputs the direct current into the switching power supply 2, so as to facilitate the switching power supply 2 to charge the control unit 125 with the filtered direct current.

[0047] In summary, the embodiment of the application sends a control instruction from the indoor unit to the outdoor unit according to the received control signal, so that the outdoor unit wakes up the switching power supply interface based on the control instruction, thereby making the switching power supply work normally or standby, realizing the weak current communication between the indoor unit and the outdoor unit, improving the communication rate, and reducing the design cost. In addition, in the case of normal working of the switching power supply, the switching power supply supplies power to the outdoor unit to ensure that the outdoor unit can maintain normal communication, and the indoor unit charges the outdoor unit by using the power supply, so that in the case of standby of the switching power supply, the outdoor unit discharges to maintain normal communication with the indoor unit, solving the problem that the outdoor unit cannot be powered off to reduce standby power in the weak current communication process.

[0048] The air conditioner indoor and outdoor unit communication method provided by the application will be described below. The air conditioner indoor and outdoor unit communication method described below can be mutually corresponding to the air conditioner indoor and outdoor unit communication method described above.

[0049] FIG. 3 shows an air conditioner indoor and outdoor unit communication method applied to the air conditioner indoor and outdoor unit communication as above. The method includes the following steps.

[0050] S31, the indoor unit receives a remote control signal and sends a control instruction to the outdoor unit according to the remote control signal.

[0051] S32, the outdoor unit receives the control instruction and wakes up the switching power supply interface according to the control instruction to control the switching power supply to work normally or standby.

[0052] S33, based on the control of the normal working of the switching power supply, the switching power supply supplies power to the outdoor unit, and the indoor unit charges the outdoor unit by using the power supply; or, based on the control of the standby of the switching power supply, the outdoor unit discharges to maintain normal communication.

[0053] It should be noted that the remote control signal is a signal sent by a remote control terminal, which can be a standby instruction or a start instruction; the control instruction is determined according to the remote control signal, for example, when the remote control signal is a standby instruction, the control instruction is a standby control instruction, and when the remote control signal is a start instruction, the control instruction is a start control instruction. In addition, the power supply used by the indoor unit to charge the outdoor unit can be the power system, the switching power supply or other power supply described below, which is not limited further here.

[0054] In an optional embodiment, the indoor unit and the outdoor unit adopt a weak current communication mode, such as RS485 communication.

[0055] In the embodiment, the outdoor part comprises a first interface for receiving the control instruction sent by the indoor part, a second interface for sending the feedback signal to the indoor part, a power supply unit, an isolation unit and a control unit. The outdoor part receives the control instruction and wakes up the switching power supply interface according to the control instruction to control the switching power supply to work normally or standby, comprising: the outdoor part receives the control instruction sent by the indoor part through the first interface and transmits it to the control unit; the control unit wakes up the switching power supply interface to the switching power supply chip according to the control instruction, so that the switching power supply standby or normal work.

[0056] In addition, based on the control of the normal work of the switching power supply, the switching power supply supplies power to the outdoor part, and the indoor part charges the outdoor part with the power supply, comprising: based on the control of the normal work of the switching power supply, the switching power supply supplies power to the control unit to ensure the normal operation of the control unit; the indoor part charges the power supply unit with the power supply.

[0057] In addition, based on the control of the standby of the switching power supply, the outdoor part discharges to maintain normal communication, comprising: based on the control of the standby of the switching power supply, the power supply unit supplies power to the control unit to maintain the normal operation of the control unit; the isolation unit isolates the indoor part and the outdoor part to avoid the power supply unit supplying power to the indoor part.

[0058] It should be noted that the switching power supply has a self-protection wake-up function, and after protection is generated, the switching power supply stops power supply, which is controlled by the control unit. The control unit can adopt a microcontroller unit (MCU), which is not limited here.

[0059] In an optional embodiment, the indoor part comprises a third interface and a fourth interface, the indoor part receives the remote control signal and sends the control instruction to the outdoor part according to the remote control signal, comprising: the indoor part sends the control signal to the outdoor part through the fourth interface; the indoor part receives the remote control signal through the third interface and the feedback signal sent by the outdoor part through the second interface, the feedback signal comprises the state information of the outdoor part after controlling the switching power supply based on the received control signal, such as the actual working frequency of the outdoor unit, the refrigeration state, the heating state and the corresponding temperature, so as to adjust the charging of the power supply unit based on the feedback information. The specific charging and discharging capacity of the actual power supply unit and the power supply demand of the control unit can be set, which is not limited here.

[0060] In an optional embodiment, the isolation unit adopts a diode, the first end of the isolation unit is one end of the positive electrode of the diode, and the second end of the isolation unit is one end of the negative electrode of the diode. It should be noted that by adopting the diode, it can be ensured that the circuit is in a connected state when the indoor part charges the power supply unit with the power supply, and the circuit between the indoor part and the outdoor part is in a disconnected state when the power supply unit supplies power to the control unit, avoiding the power supply unit supplying power to the indoor part.

[0061] In an optional embodiment, the power supply unit adopts an electrolytic capacitor. It should be noted that by adopting the electrolytic capacitor, the stability of the device operation can be improved, and the electrolytic capacitor has a long service life and large capacity, can adapt to long-time work, and will not be easily damaged, thereby reducing the replacement of devices and saving costs.

[0062] In an optional embodiment, the system further comprises a filter circuit module and a rectifier circuit module, and the filter circuit module, the rectifier circuit module and the switching power supply are sequentially connected. Correspondingly, the method further comprises: the filter circuit module filters the alternating current input by the power system to filter out interference signals, and inputs the filtered alternating current into the rectifier circuit module; the rectifier circuit module converts the filtered alternating current output by the filter circuit module into direct current, and inputs the direct current into the switching power supply, so as to facilitate the switching power supply to charge the control unit by using the filtered direct current.

[0063] In summary, the application implements the weak current communication between the indoor unit and the outdoor unit by sending a control instruction from the indoor unit to the outdoor unit according to the received control signal, so as to wake up the switching power supply interface based on the control instruction, thereby making the switching power supply work normally or standby, improving the communication rate, and reducing the design cost. In addition, in the case that the switching power supply works normally, the switching power supply supplies power to the outdoor unit to ensure that the outdoor unit can maintain normal communication, and the indoor unit charges the outdoor unit by using the power supply, so as to maintain normal communication between the indoor unit and the outdoor unit by discharging the outdoor unit in the case that the switching power supply is in standby, thereby solving the problem that the outdoor unit cannot be powered off to reduce standby power in the weak current communication process.

[0064] FIG. 4 illustrates an entity structure diagram of an electronic device. As shown in FIG. 4, the electronic device can include a processor 410, a communications interface 420, a memory 430 and a communications bus 440, wherein the processor 410, the communications interface 420 and the memory 430 complete mutual communication through the communications bus 440. The processor 410 can invoke the logical instructions in the memory 430 to execute the air conditioner indoor and outdoor unit communication method, which comprises: the indoor unit receives a remote control signal and sends a control instruction to the outdoor unit according to the remote control signal; the outdoor unit receives the control instruction and wakes up the switching power supply interface according to the control instruction to control the switching power supply to work normally or standby; based on controlling the switching power supply to work normally, the switching power supply supplies power to the outdoor unit, and the indoor unit charges the outdoor unit by using the power supply; or, based on controlling the switching power supply to standby, the outdoor unit discharges to maintain normal communication.

[0065] Further, the logic instructions in the memory 430 described above can be implemented in the form of software functional units and sold or used as independent products, and can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application essentially or the part that contributes to the prior art or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes a number of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0066] In another aspect, the present application also provides a computer program product, which comprises a computer program stored on a non-transitory computer readable storage medium, and the computer program comprises program instructions, when the program instructions are executed by a computer, the computer can execute the air conditioner indoor and outdoor unit communication method provided by the above-mentioned methods, and the method comprises: the indoor part receives a remote control signal, and sends a control instruction to the outdoor part according to the remote control signal; the outdoor part receives the control instruction, and wakes up the switching power supply interface according to the control instruction, so as to control the switching power supply to work normally or standby; based on the control of the switching power supply to work normally, the switching power supply supplies power to the outdoor part, and the indoor part charges the outdoor part by using the power supply; or, based on the control of the switching power supply to standby, the outdoor part discharges to maintain normal communication.

[0067] In another aspect, the present application also provides a non-transitory computer readable storage medium, which stores a computer program, and the computer program is executed by a processor to implement the air conditioner indoor and outdoor unit communication method provided by the above-mentioned methods, and the method comprises: the indoor part receives a remote control signal, and sends a control instruction to the outdoor part according to the remote control signal; the outdoor part receives the control instruction, and wakes up the switching power supply interface according to the control instruction, so as to control the switching power supply to work normally or standby; based on the control of the switching power supply to work normally, the switching power supply supplies power to the outdoor part, and the indoor part charges the outdoor part by using the power supply; or, based on the control of the switching power supply to standby, the outdoor part discharges to maintain normal communication.

[0068] The device embodiments described above are merely illustrative, wherein the units described as separate components can or can not be physically separate, and the components displayed as units can or can not be physical units, i.e., can be located in one place, or can be distributed to multiple network units. Part or all of the modules can be selected to achieve the purposes of the embodiments according to actual needs. Those skilled in the art can understand and implement without creative labor.

[0069] Through the description of the above embodiments, those skilled in the art can clearly understand that the embodiments can be realized by means of software and the necessary general hardware platform, and of course can also be realized by hardware. Based on such understanding, the above technical solutions can be embodied in the form of software products, and the computer software products can be stored in a computer readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and include a plurality of instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute the methods described in each embodiment or some parts of the embodiments.

[0070] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A communication system for an air conditioner indoor unit and an outdoor unit, comprising a communication module and a switching power supply, the communication module comprising an indoor part and an outdoor part, the indoor part and the outdoor part being connected and communicating with each other by weak current, the indoor part receiving a remote control signal and sending a control instruction to the outdoor part according to the remote control signal, the outdoor part receiving the control instruction and waking up a switching power supply interface according to the control instruction to control the switching power supply to work normally or standby, the switching power supply supplying power to the outdoor part based on the control of the switching power supply to work normally, and the indoor part charging the outdoor part by using the power supply, or the outdoor part discharging to maintain normal communication based on the control of the switching power supply to standby. wherein The indoor part and the outdoor part are connected by an online line. The outdoor part comprises a first interface for receiving the control instruction sent by the indoor part, a second interface for sending a feedback signal to the indoor part, a power supply unit, an isolation unit and a control unit, wherein the first end of the isolation unit is connected with the first receiving port of the online line and the first interface respectively, the second end of the isolation unit is connected with the first end of the power supply unit and the control unit respectively, the second end of the power supply unit is grounded, the control unit is connected with the first sending port of the online line through the second interface, and the control unit is connected with the switching power supply. The isolation unit adopts a diode, the first end of the isolation unit is one end of the positive electrode of the diode, and the second end of the isolation unit is one end of the negative electrode of the diode.

2. The air conditioner indoor and outdoor unit communication system of claim 1, wherein, The power supply unit adopts an electrolytic capacitor. The outdoor part further comprises a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a first triode and a first capacitor, wherein the first end of the first resistor is connected with the base of the first triode and the first end of the fifth resistor respectively, the second end of the first resistor is connected with the first end of the second resistor, the second end of the second resistor is connected with the first end of the third resistor and the VCC pin of the control unit respectively, the first end of the third resistor is connected with the VCC pin, the second end of the third resistor is connected with the collector of the first triode and the first end of the fourth resistor respectively, the second end of the fourth resistor is connected with the online line and the first end of the first capacitor respectively, and the second end of the first capacitor is grounded and connected with the emitter of the first triode and the second end of the fifth resistor respectively. The indoor part comprises a third interface, a fourth interface, a sixth resistor, a seventh resistor, a second triode, an eighth resistor, a ninth resistor and a second capacitor, wherein the first end of the sixth resistor is connected with the fourth interface, the second end of the sixth resistor is connected with the base of the second triode and the first end of the seventh resistor respectively, the emitter of the second triode is grounded and connected with the second end of the seventh resistor, and the collector of the second triode is connected with the first sending port of the online line through the eighth resistor. ​ ​ 3. The air conditioner indoor and outdoor unit communication system of claim 2, wherein, ​ ​ 4. The air conditioner indoor and outdoor unit communication system of claim 2, wherein, ​ ​ ​ ​ ​ ​ 5. The air conditioner indoor and outdoor unit communication system of claim 2, wherein, ​ ​ ​ The first end of the second capacitor is connected with the third interface and the first end of the ninth resistor respectively, and the second end of the second capacitor is grounded; The second end of the ninth resistor is connected with the second receiving port of the online line. 6.The communication system of an air conditioner indoor and outdoor units according to claim 1, wherein, The system further comprises a filtering circuit module and a rectifier circuit module, and the filtering circuit module, the rectifier circuit module and the switching power supply are sequentially connected, The filtering circuit module filters the alternating current input by the power system to remove interference signals, and inputs the filtered alternating current into the rectifier circuit module; The rectifier circuit module converts the filtered alternating current into direct current, and inputs the alternating current into the switching power supply.

7. A communication method of an indoor unit and an outdoor unit of an air conditioner, applied to the communication of the indoor unit and the outdoor unit of the air conditioner as claimed in any one of claims 1-6, comprising: The indoor unit receives a remote control signal and sends a control instruction to the outdoor unit according to the remote control signal; The outdoor unit receives the control instruction and wakes up a switching power supply interface according to the control instruction to control the switching power supply to normally work or standby; Based on controlling the switching power supply to normally work, the switching power supply supplies power to the outdoor unit, and the indoor unit charges the outdoor unit by using the power supply; or, based on controlling the switching power supply to standby, the outdoor unit discharges to maintain normal communication. 8.The communication method of indoor and outdoor units of an air conditioner according to claim 7, wherein, The outdoor unit comprises a first interface for receiving the control instruction sent by the indoor unit, a second interface for sending a feedback signal to the indoor unit, a power supply unit, an isolation unit and a control unit, the outdoor unit receives the control instruction and wakes up the switching power supply interface according to the control instruction to control the switching power supply to normally work or standby, comprising: The outdoor unit receives the control instruction sent by the indoor unit through the first interface and sends it to the control unit; The control unit wakes up the switching power supply interface according to the control instruction to control the switching power supply to standby or normally work; Based on controlling the switching power supply to normally work, the switching power supply supplies power to the control unit to ensure the normal operation of the control unit; The indoor unit charges the power supply unit by using the power supply; Based on controlling the switching power supply to standby, the outdoor unit discharges to maintain normal communication, comprising: Based on controlling the switching power supply to standby, the power supply unit supplies power to the control unit to maintain the normal operation of the control unit; The isolation unit isolates the indoor unit and the outdoor unit to avoid the power supply unit supplying power to the indoor unit. The processor implements the steps of the communication method of the indoor unit and the outdoor unit of the air conditioner as claimed in any one of claims 7-8 when executing the program.

9. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein, The computer program implements the steps of the communication method of the indoor unit and the outdoor unit of the air conditioner as claimed in any one of claims 7-8 when executed by the processor.

10. A non-transitory computer readable storage medium having stored thereon a computer program, wherein, ​

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