Air conditioner communication fault emergency control method and device, air conditioner, equipment and medium

Abstract

The invention discloses an air conditioner communication fault emergency control method and device, an air conditioner, equipment and a medium. The indoor unit is provided with a pulse signal output port, the outdoor unit is provided with a pulse signal detection port, and the method is executed by the indoor unit and comprises the steps that communication faults of the indoor unit and the outdoor unit are detected; preset pulse signals are continuously output to the outdoor unit; and when a control demand exists, target signals corresponding to the control demand are inserted into the pulse signals, so that the outdoor unit executes operation corresponding to the control demand according to the target signals, and different control demands correspond to different target signals. The control circuit is additionally arranged between the indoor unit and the outdoor unit of the air conditioner, and the indoor unit transmits the specific signal to the outdoor unit through the control circuit to control the load of the outdoor unit under the condition of communication failure of the indoor unit and the outdoor unit of the air conditioner, so that the operation of the air conditioner is ensured, and the emergency use requirement of a user is met; user experience is improved, and the problem of direct shutdown due to communication failure of the air conditioner is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the air conditioning technical field, and in particular, relates to an air conditioner communication fault emergency control method and device, an air conditioner, equipment and a medium. BACKGROUND

[0002] The air conditioner includes an indoor unit and an outdoor unit, and the indoor unit and the outdoor unit both have controllers. They are generally connected through a communication line to exchange information, for example, the indoor unit and the outdoor unit use a serial communication mode to communicate. Figure 1 As shown in the figure, the air conditioner includes an indoor unit 10 and an outdoor unit 20, and the indoor unit 10 and the outdoor unit 20 are both provided with a communication port. The two communication ports are connected through a communication line 30, and the indoor unit 10 and the outdoor unit 20 communicate through the communication line 30.

[0003] However, during installation or use, the communication line may be damaged or the communication chip in the controller may fail, ultimately resulting in the indoor unit and the outdoor unit being unable to normally communicate. The air conditioner manufacturer generally stops the machine for failure in this case, but this will affect the user's normal use of the air conditioner.

[0004] In view of the problem that the air conditioner indoor and outdoor unit communication failure in the prior art will directly stop the machine and affect the user experience, no effective solution has been proposed so far. SUMMARY

[0005] The embodiments of the present application provide an air conditioner communication fault emergency control method, device, air conditioner, equipment and medium to at least solve the problem that the air conditioner indoor and outdoor unit communication failure in the prior art will directly stop the machine and affect the user experience.

[0006] To solve the above technical problems, the embodiments of the present application provide an air conditioner communication fault emergency control method. The indoor unit is provided with a pulse signal output port, and the outdoor unit is provided with a pulse signal detection port. The method is executed by the indoor unit, and the method comprises the following steps.

[0007] Detecting that the indoor and outdoor unit communication fails;

[0008] Continuously outputting a preset pulse signal to the outdoor unit;

[0009] When there is a control requirement, inserting a target signal corresponding to the control requirement into the pulse signal, so that the outdoor unit performs an operation corresponding to the control requirement according to the target signal, wherein different control requirements correspond to different target signals.

[0010] Optionally, inserting a target signal corresponding to the control requirement into the pulse signal comprises:

[0011] According to the current control requirement, a target signal corresponding to the control requirement is inserted once after outputting the pulse signal for a first preset time length, and the cycle is repeated until there is a new control requirement, wherein the first preset time length is greater than or equal to the period of the pulse signal.

[0012] If the control requirement is a shutdown instruction, the target signal is not inserted, and the pulse signal is continuously output.

[0013] Optionally, inserting the target signal corresponding to the control requirement into the pulse signal comprises:

[0014] According to the current control requirement, a target signal corresponding to the control requirement is inserted once after outputting the pulse signal for a first preset time length, and the cycle is repeated until a preset number of times are inserted or a second preset time length is reached, and then the pulse signal is continuously output, wherein the first preset time length is greater than or equal to the period of the pulse signal, and the second preset time length is greater than or equal to the sum of the first preset time length and the time length of the target signal.

[0015] Optionally, after detecting the communication failure between the indoor unit and the outdoor unit, the method further comprises: if the air conditioner is in a shutdown state, continuously outputting the pulse signal to the outdoor unit.

[0016] Optionally, after detecting the communication failure between the indoor unit and the outdoor unit, the method further comprises:

[0017] If the air conditioner is in a startup state, determining the control requirement according to the working mode, the parameter set value and the parameter actual value of the air conditioner, and when a shutdown instruction is received, determining that there is a control requirement;

[0018] If the air conditioner is in a shutdown state, when a startup instruction is received, determining the control requirement according to the working mode, the parameter set value and the parameter actual value of the air conditioner.

[0019] Optionally, determining the control requirement according to the working mode, the parameter set value and the parameter actual value of the air conditioner comprises:

[0020] In the current working mode, calculating the deviation degree of the parameter actual value and the parameter set value;

[0021] According to the current working mode and the deviation degree, determining a compressor target frequency range as the control requirement;

[0022] Wherein, the same compressor target frequency range in different working modes is different control requirements.

[0023] Optionally, the target signal is a low-level signal or a high-level signal, and the time length of the target signal is greater than or equal to the period of the pulse signal.

[0024] Optionally, before detecting the communication failure between the indoor unit and the outdoor unit, further comprising:

[0025] After the air conditioner is powered on, whether the communication between the indoor unit and the outdoor unit is failed is detected.

[0026] If the communication failure between the indoor unit and the outdoor unit is not detected, the indoor unit and the outdoor unit perform normal communication according to the original communication mode.

[0027] The embodiment of the application further provides an air conditioner communication failure emergency control device, the indoor unit is provided with a pulse signal output port, the outdoor unit is provided with a pulse signal detection port, the device is located in the indoor unit, and the device comprises:

[0028] The detection module is used for detecting the communication failure between the indoor unit and the outdoor unit.

[0029] The output module is used for continuously outputting a preset pulse signal to the outdoor unit.

[0030] The processing module is used for inserting a target signal corresponding to a control demand into the pulse signal when the control demand exists, so that the outdoor unit performs an operation corresponding to the control demand according to the target signal.

[0031] The embodiment of the application further provides an air conditioner, which comprises the air conditioner communication failure emergency control device.

[0032] The embodiment of the application further provides an electronic device, which comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the steps of the method when executing the computer program.

[0033] The embodiment of the application further provides a nonvolatile computer readable storage medium, which stores a computer program, and the computer program is executable on the processor to implement the steps of the method.

[0034] The technical scheme of the application adds a control line between the indoor unit and the outdoor unit of the air conditioner, in the case of communication failure between the indoor unit and the outdoor unit of the air conditioner, the indoor unit transmits a specific signal to the outdoor unit through the control line, so as to control the load in the outdoor unit according to the control demand, ensure the operation of the air conditioner, meet the emergency use demand of the user, realize the emergency control in the case of communication failure between the indoor unit and the outdoor unit of the air conditioner, and the air conditioner does not need to be stopped, thereby improving the user experience, and solving the problem that the communication failure between the indoor unit and the outdoor unit of the air conditioner in the prior art directly stops the air conditioner and affects the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 is a schematic diagram of the communication between the indoor unit and the outdoor unit of the air conditioner in the prior art;

[0036] Figure 2is a schematic diagram of air conditioner indoor and outdoor unit communication provided by the embodiment of the present application;

[0037] Figure 3 is a flow chart of air conditioner communication fault emergency control method provided by the embodiment of the present application;

[0038] Figure 4 is a specific flow of air conditioner communication fault emergency control method provided by the embodiment of the present application Figure 1 ;

[0039] Figure 5 is a specific flow of air conditioner communication fault emergency control method provided by the embodiment of the present application Figure 2 ;

[0040] Figure 6 is a structure block diagram of air conditioner communication fault emergency control device provided by the embodiment of the present application;

[0041] Figure 7 is a hardware structure schematic diagram of electronic equipment provided by the embodiment of the present application. DETAILED DESCRIPTION

[0042] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0043] It should be noted that the terms "first", "second" and the like in the description and claims of the present application and the drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in other than the order illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily limit to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0044] It should be noted that the steps shown in the flowchart of the drawings can be executed in a computer system such as a set of computer executable instructions, and although the logical order is shown in the flowchart, in some cases, the steps shown or described herein can be executed in an order different from that described herein.

[0045] It should be understood that the term "and / or" used herein is merely an association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " herein generally represents an "or" relationship between the front and rear associated objects.

[0046] The optional embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0047] Embodiment 1

[0048] In order to solve the problem that the communication failure between the indoor unit and the outdoor unit of the air conditioner in the prior art will directly cause the air conditioner to stop running and affect the user experience, the present embodiment increases a control line between the indoor unit and the outdoor unit of the air conditioner. In the case of communication failure between the indoor unit and the outdoor unit of the air conditioner, a specific signal is transmitted through the control line to realize emergency control in the case of communication failure between the indoor unit and the outdoor unit of the air conditioner. The air conditioner does not need to stop running, which ensures the operation of the air conditioner and improves the user experience.

[0049] The pulse signal output port is provided in the indoor unit, and the pulse signal detection port is provided in the outdoor unit, and the pulse signal output port is in communication connection with the pulse signal detection port. Specifically, the pulse signal output port is provided in the controller of the indoor unit, and the pulse signal detection port is provided in the controller of the outdoor unit.

[0050] As shown in Figure 2 , the air conditioner comprises an indoor unit 10 and an outdoor unit 20, and the indoor unit 10 and the outdoor unit 20 are both provided with a communication port, and the two communication ports are connected through a communication line 30. The indoor unit 10 and the outdoor unit 20 communicate through the communication line 30, which is the original communication mode between the indoor unit and the outdoor unit of the air conditioner. The present embodiment increases a control line between the indoor unit and the outdoor unit of the air conditioner. Specifically, a pulse signal output port is provided in the indoor unit 10, and a pulse signal detection port is provided in the outdoor unit 20, and the pulse signal output port is in communication connection with the pulse signal detection port. The output and detection of the pulse signal can be realized by using existing components. In the process of emergency control, the indoor unit 10 acts as the upper computer, and the outdoor unit 20 acts as the lower computer.

[0051] The present embodiment provides an air conditioner communication failure emergency control method, which is executed by the indoor unit.

[0052] Figure 3 The present embodiment provides an air conditioner communication failure emergency control method, which is executed by the indoor unit. Figure 3 The present embodiment provides an air conditioner communication failure emergency control method, which is executed by the indoor unit.

[0053] S301, detecting the communication failure between the indoor unit and the outdoor unit.

[0054] S302, continuously outputting a preset pulse signal to the outdoor unit.

[0055] S303, when there is a control demand, inserting a target signal corresponding to the control demand into the pulse signal, so that the outdoor unit performs an operation corresponding to the control demand according to the target signal, wherein different control demands correspond to different target signals.

[0056] The pulse signal belongs to a discrete signal, and the preset pulse signal can be a signal with a preset period (or frequency) and a preset duty cycle, for example, a pulse signal with a frequency of 100 Hz and a duty cycle of 50%.

[0057] Different target signals represent different control instructions. The target signal also belongs to a discrete signal, and the target signal is different from the preset pulse signal, so that the outdoor unit can identify the target signal from the received signal and obtain the control instruction. After receiving the signal transmitted by the indoor unit, the outdoor unit performs signal recognition and performs corresponding operations according to the recognition result to control the load in the outdoor unit.

[0058] In this embodiment, after detecting the communication failure between the indoor unit and the outdoor unit of the air conditioner, the indoor unit continuously outputs a preset pulse signal to the outdoor unit. When there is a control demand, a target signal corresponding to the control demand is inserted into the pulse signal, and the target signal is used to indicate a specific control instruction. At this time, although the pulse signal is still being transmitted, the pulse signal is cut off by the target signal and is not continuous. That is, the signal transmitted by the indoor unit to the outdoor unit can be a continuous preset pulse signal, or a pulse signal with a target signal inserted (i.e. a processed signal).

[0059] In the case of communication failure between the indoor unit and the outdoor unit of the air conditioner, the indoor unit can obtain the control demand and send a corresponding signal to the outdoor unit through the added control line. After the outdoor unit identifies the signal, it performs a corresponding operation to complete the load control of the outdoor unit. The indoor unit can determine the control demand based on the received user instruction or based on the actual control situation.

[0060] In this embodiment, a control line is added between the indoor unit and the outdoor unit of the air conditioner. In the case of communication failure between the indoor unit and the outdoor unit of the air conditioner, the indoor unit transmits a specific signal to the outdoor unit through the control line to control the load in the outdoor unit according to the control demand, ensuring the operation of the air conditioner and meeting the user's emergency use demand. This embodiment realizes emergency control in the case of communication failure between the indoor unit and the outdoor unit of the air conditioner, and the air conditioner does not need to be shut down, improving the user's experience and solving the problem that the communication failure between the indoor unit and the outdoor unit of the air conditioner in the prior art will directly shut down the air conditioner and affect the user's experience.

[0061] The target signal is a low-level signal or a high-level signal, and the duration of the target signal is greater than or equal to the period of the pulse signal, so that the target signal can be easily distinguished from the preset pulse signal, and the outdoor unit can effectively identify the target signal.

[0062] As mentioned above, different control requirements correspond to different target signals, and different target signals can be formed by using different time lengths, for example, the target signal is a low-level signal, the time length of the target signal A is 10 ms, and the time length of the target signal B is 20 ms; or different target signals can be formed by using time length in combination with high and low levels, for example, the target signal C is a low-level signal and has a time length of 10 ms, the target signal D is a high-level signal and has a time length of 10 ms, and the target signal E is a high-level signal and has a time length of 20 ms.

[0063] The target signal corresponding to the control requirement is inserted into the pulse signal, that is, the signal is processed, and the signal processing can be realized by the following mode (1) or mode (2).

[0064] (1) The target signal corresponding to the control requirement is inserted into the pulse signal, including: for the current control requirement, after outputting the pulse signal for a first preset time length, the target signal corresponding to the control requirement is inserted once, and the cycle is repeated until there is a new control requirement, wherein the first preset time length is greater than or equal to the period of the pulse signal; if the control requirement is a shutdown instruction, no target signal is inserted, and the pulse signal is continuously output.

[0065] The first preset time length is greater than or equal to the period of the pulse signal, that is, at least one period of the pulse signal is continuously output when the target signal is inserted, so as to effectively distinguish the target signal from the preset pulse signal. The first preset time length can be set by comprehensively considering the time lengths of all target signals, so as to ensure that all target signals can be obviously distinguished from the preset pulse signal.

[0066] In this mode, as a special case, for the shutdown instruction, no target signal is inserted, which can be understood as inserting a target signal with a time length of 0.

[0067] In this mode, for each control requirement, the target signal corresponding to the control requirement is periodically inserted into the pulse signal, and the processed signal is continuously output to the external machine until there is a new control requirement, and then the signal is continuously output according to the new control requirement. Referring to Figure 2 , T represents the time length of the target signal, and the internal machine 10 continuously outputs the signal to the external machine 20 according to the current control requirement, for example, after outputting the pulse signal for 100 ms, the target signal with the time length T is inserted.

[0068] In this embodiment, for each control requirement, the target signal corresponding to the control requirement is periodically inserted into the pulse signal, and the processed signal is continuously output to the external machine until there is a new control requirement, and then the signal is continuously output according to the new control requirement, and in this way, the external machine can receive the signal and effectively control the load of the external machine.

[0069] (2) inserting a target signal corresponding to the control requirement into the pulse signal, including: for the current control requirement, inserting a target signal corresponding to the control requirement once after outputting a pulse signal for a first preset time length, and repeating the above process until a preset number of times is reached or a second preset time length is reached, and then continuously outputting the pulse signal, wherein the first preset time length is greater than or equal to the period of the pulse signal, and the second preset time length is greater than or equal to the sum of the first preset time length and the time length of the target signal.

[0070] wherein the preset number of times is greater than or equal to 1, and the second preset time length is greater than or equal to the sum of the first preset time length and the time length of the target signal, so as to ensure that the target signal is inserted at least once, and the control instruction is transmitted. The second preset time length can be set for each target signal respectively, or all target signals share one second preset time length. For the latter, the second preset time length needs to be set by comprehensively considering the time lengths of all target signals, determining the maximum time length among the time lengths of all target signals, and setting the second preset time length to be greater than or equal to the sum of the first preset time length and the maximum time length.

[0071] In this mode, for each control requirement, the target signal corresponding to the control requirement is periodically inserted into the pulse signal, and the processed signal is output to the outdoor unit. When a preset number of times is reached or a second preset time length is reached, the output of the processed signal is stopped, and the pulse signal is continuously output to the outdoor unit. For example, for the current control requirement, the indoor unit outputs a pulse signal for 100 ms, and inserts a target signal with a time length of T. When the number of insertions reaches 3 times or the total time length of the output of the processed signal reaches 1 s, the output of the processed signal is stopped, and the preset pulse signal is continuously output.

[0072] In this mode, for each control requirement, the target signal corresponding to the control requirement is periodically inserted into the pulse signal, and the processed signal is output to the outdoor unit. When a preset number of times is reached or a second preset time length is reached, the output of the processed signal is stopped, and the pulse signal is continuously output to the outdoor unit. For example, for the current control requirement, the indoor unit outputs a pulse signal for 100 ms, and inserts a target signal with a time length of T. When the number of insertions reaches 3 times or the total time length of the output of the processed signal reaches 1 s, the output of the processed signal is stopped, and the preset pulse signal is continuously output.

[0073] After detecting the communication failure between the indoor unit and the outdoor unit, the method further includes: if the air conditioner is in a shutdown state, continuously outputting the pulse signal to the outdoor unit.

[0074] In this embodiment, when the communication between the indoor unit and the outdoor unit fails and the air conditioner is in a shutdown state, the indoor unit continuously outputs the pulse signal to the outdoor unit, so as to maintain the control relationship between the indoor unit and the outdoor unit, and reduce the processing operation of the indoor unit on the signal in the shutdown state of the air conditioner, thereby saving resources. When the indoor unit receives a start-up instruction, the corresponding signal is output to the outdoor unit according to the specific control requirement.

[0075] In one embodiment, after detecting the communication failure between the indoor unit and the outdoor unit, the method further comprises:

[0076] If the air conditioner is in the on state, determining the control requirement according to the working mode, the parameter set value and the parameter actual value of the air conditioner, and determining the control requirement when receiving the off instruction;

[0077] If the air conditioner is in the off state, determining the control requirement according to the working mode, the parameter set value and the parameter actual value of the air conditioner when receiving the on instruction.

[0078] The parameter corresponds to the working mode of the air conditioner, and is a target parameter regulated in the working mode of the air conditioner, for example, the parameter regulated in the cooling mode and the heating mode is the indoor temperature, and the parameter regulated in the dehumidification mode is the indoor humidity.

[0079] When the air conditioner is in the on state, changing the working mode or changing the parameter set value by the user or turning off the air conditioner, and the actual deviation between the parameter set value and the parameter actual value changes, the control requirement changes. When the air conditioner is in the off state, if the user turns on the air conditioner, the control requirement changes.

[0080] In the case of communication failure between the indoor unit and the outdoor unit, the indoor unit can determine different control requirements based on the received user instructions or based on the actual regulation, and then transmit specific signals according to the specific control requirements, to realize emergency control in the case of communication failure between the indoor unit and the outdoor unit.

[0081] Further, determining the control requirement according to the working mode, the parameter set value and the parameter actual value of the air conditioner comprises: calculating the deviation degree of the parameter actual value from the parameter set value in the current working mode; determining the compressor target frequency range as the control requirement according to the current working mode and the deviation degree; wherein the same compressor target frequency range in different working modes is different control requirements. Different control requirements correspond to different control instructions.

[0082] Wherein, different deviation degrees in the same working mode correspond to different compressor target frequency ranges as different control requirements. The same deviation degree in different working modes, even if corresponding to the same compressor target frequency range, is also different control requirements. That is, the target signal contains the indication of the working mode and the compressor target frequency range.

[0083] For the same parameter, the greater the deviation degree, the greater the compressor target frequency range. If the deviation degree is within the preset allowable range, it means that the parameter actual value reaches the parameter set value, and the compressor can be stopped, that is, the compressor target frequency range is 0.

[0084] The embodiment can quickly and effectively determine the control requirement based on the working mode and the deviation degree of the actual value of the parameter and the set value of the parameter, and then can transmit the specific signal according to the specific control requirement, so as to realize the emergency control in the case of the communication failure between the indoor unit and the outdoor unit.

[0085] In the case of the communication failure between the indoor unit and the outdoor unit, the outdoor unit continuously receives the signal sent by the indoor unit, and performs real-time identification on the signal, and performs corresponding operation according to the identification result. For example, if the air conditioner is in the shutdown state, the outdoor unit receives the signal sent by the indoor unit, identifies the signal indicating the start instruction (including the indication of the working mode and the target frequency range of the compressor), and then controls the four-way valve according to the working mode, and starts the compressor to the target frequency range. If the air conditioner is in the start state, the outdoor unit receives the signal sent by the indoor unit, identifies the target signal, adjusts the frequency of the compressor or controls the four-way valve to switch the working mode according to the target signal, and if the target signal indicates the shutdown instruction, the outdoor unit shuts down the compressor and the four-way valve to complete the shutdown operation.

[0086] In one embodiment, before detecting the communication failure between the indoor unit and the outdoor unit, the method further comprises: detecting whether the communication between the indoor unit and the outdoor unit is failed after the air conditioner is powered on; and if the communication failure between the indoor unit and the outdoor unit is not detected, the indoor unit and the outdoor unit perform normal communication according to the original communication mode.

[0087] The air conditioner itself has the function of detecting whether the communication between the indoor unit and the outdoor unit is failed. Specifically, after the air conditioner is powered on, if the indoor unit cannot receive the data sent by the outdoor unit for a continuous period of time, it is considered that the communication between the indoor unit and the outdoor unit is failed.

[0088] The embodiment only transmits the control instruction to the outdoor unit by using the transmission of the specific signal to control the load of the outdoor unit to realize the emergency control in the case of the communication failure between the indoor unit and the outdoor unit, and in the case of the normal communication between the indoor unit and the outdoor unit, the indoor unit and the outdoor unit perform normal communication according to the original communication mode. Therefore, the emergency measures can be provided on the basis of ensuring the reliability of the communication between the indoor unit and the outdoor unit, and the demand of the user for emergency use can be met.

[0089] Embodiment 2

[0090] The embodiment provides a specific implementation of the air conditioner communication failure emergency control method on the basis of the above-mentioned embodiment. The same or corresponding terms are explained as in the above-mentioned embodiment, and the embodiment will not be described again. It is worth noting that the specific embodiment is only used to better illustrate the present application and does not constitute an improper limitation on the present application.

[0091] After the air conditioner is powered on, whether the air conditioner is started or not, the indoor unit always detects whether the communication between the indoor unit and the outdoor unit is failed.

[0092] If no communication fault is detected between the indoor and outdoor units, the indoor and outdoor units will communicate normally according to the original communication method.

[0093] If a communication failure between the indoor and outdoor units is detected, determine the current status of the air conditioner.

[0094] If the air conditioner is currently off, the outdoor unit load is also off. The indoor unit continuously outputs a preset pulse signal (e.g., a pulse signal with a frequency of 100Hz and a duty cycle of 50%) to the outdoor unit to maintain the control relationship between the indoor and outdoor units. When the indoor unit receives a power-on command, it processes the pulse signal according to specific control requirements and transmits the processed signal to the outdoor unit to achieve outdoor unit load control.

[0095] If the air conditioner is currently on, the indoor unit determines the control requirements based on the air conditioner's operating mode, parameter settings, and actual parameter values. It then inserts the pulse signal using the target signal corresponding to the control requirements and transmits the processed signal to the outdoor unit to achieve outdoor unit load control. When the indoor unit receives a shutdown command, it inserts the pulse signal according to the target signal corresponding to the shutdown command and sends the processed signal to the outdoor unit. As a special case, for the signal processing method (1) described in Embodiment 1, a preset pulse signal is continuously output to the outdoor unit to represent the shutdown command (which can be understood as the duration of the target signal corresponding to the shutdown command being 0).

[0096] Signal processing method (1): For each control requirement, the target signal corresponding to the control requirement is periodically inserted into the pulse signal, and the processed signal is continuously output to the outdoor unit until a new control requirement is met, at which point the signal is continuously output according to the new control requirement. A preset pulse signal is continuously output to the outdoor unit to indicate a shutdown command.

[0097] Signal processing method (2): For each control requirement, the target signal corresponding to the control requirement is periodically inserted into the pulse signal, and the processed signal is output to the outdoor unit. When the preset number of times or the second preset duration is met, the output of the processed signal is stopped, and the pulse signal is continuously output to the outdoor unit.

[0098] like Figure 4 The diagram shown illustrates the emergency control method after an air conditioning communication failure. Figure 1 In this embodiment, taking signal processing method (1) as an example, the preset pulse signal is a pulse signal with a frequency of 100Hz and a duty cycle of 50%, the first preset duration is 100ms, and the target signal is a low-level signal. The process includes the following steps:

[0099] S401, the air conditioning unit is powered on.

[0100] S402, determine whether there is a communication failure between the indoor unit and the outdoor unit, if yes, go to S403, if no, go to S421.

[0101] S403, determine whether the air conditioner is currently in the start-up state, if yes, go to S404, if no, go to S422.

[0102] S404, determine the working mode of the air conditioner. In this embodiment, the cooling mode and the heating mode are taken as examples. The indoor unit can obtain the set temperature Tset input by the user and detect the actual indoor temperature Troom. If there is a dehumidification mode, the indoor unit can obtain the set humidity and detect the actual indoor humidity as the basis for determining the control requirement.

[0103] S405, determine that the working mode of the air conditioner is the cooling mode.

[0104] S406, determine whether Tset-Troom<-2℃ is satisfied, if yes, go to S407, if no, go to S408.

[0105] S407, Tset-Troom<-2℃, which indicates that the actual indoor temperature is too high. The indoor unit outputs a 10ms low-level signal (i.e., the target signal corresponding to the current control requirement) after outputting a 100ms pulse signal, and the cycle is repeated. The outdoor unit detects the pulse signal cut-off time of 10ms (there will be errors in practice, which can be controlled within an error range, for example, 10ms±5μs), and controls the compressor to operate at high frequency, for example, the high frequency operating range can be 70Hz to 100Hz.

[0106] S408, determine whether-2℃≤Tset-Troom<0℃ is satisfied, if yes, go to S409, if no, go to S410.

[0107] S409, -2℃≤Tset-Troom<0℃, which indicates that the actual indoor temperature is slightly high. The indoor unit outputs a 20ms low-level signal (i.e., the target signal corresponding to the current control requirement) after outputting a 100ms pulse signal, and the cycle is repeated. The outdoor unit detects the pulse signal cut-off time of 20ms (there will be errors in practice, which can be controlled within an error range, for example, 20ms±5μs), and controls the compressor to operate at medium frequency, for example, the medium frequency operating range can be 40Hz to 70Hz.

[0108] S410, determine whether 0℃≤Tset-Troom<1℃ is satisfied, if yes, go to S411, if no, go to S412.

[0109] S411, 0℃≤Tset-Tloop<1℃, indicates that the actual indoor temperature is close to the set temperature, the indoor unit outputs 100ms pulse signal every time, and then outputs 30ms low level signal (i.e. the target signal corresponding to the current control requirement), and the cycle is output. The external machine detects the pulse signal cut-off time of 30ms (there will be errors in practice, which can be controlled in an error range, for example, 30ms±5μs), controls the compressor to run at low frequency, for example, the low frequency running range can be 20Hz to 40Hz.

[0110] S412, Tset-Tloop≥1℃, indicates that the actual indoor temperature reaches the set temperature, the indoor unit outputs 100ms pulse signal every time, and then outputs 40ms low level signal (i.e. the target signal corresponding to the current control requirement), and the cycle is output. The external machine detects the pulse signal cut-off time of 40ms (there will be errors in practice, which can be controlled in an error range, for example, 40ms±5μs), controls the compressor to stop, i.e. reaches the temperature point stop.

[0111] S413, determines that the working mode of the air conditioner is the heating mode.

[0112] S414, judges whether Tloop-Tset<-2℃ is met, if yes, enters S415, if not, enters S416.

[0113] S415, Tloop-Tset<-2℃, indicates that the actual indoor temperature is low, the indoor unit outputs 100ms pulse signal every time, and then outputs 60ms low level signal (i.e. the target signal corresponding to the current control requirement), and the cycle is output. The external machine detects the pulse signal cut-off time of 60ms (there will be errors in practice, which can be controlled in an error range, for example, 60ms±5μs), controls the compressor to run at high frequency.

[0114] S416, judges whether-2℃≤Tloop-Tset<0℃ is met, if yes, enters S417, if not, enters S418.

[0115] S417, -2℃≤Tloop-Tset<0℃, indicates that the actual indoor temperature is slightly low, the indoor unit outputs 100ms pulse signal every time, and then outputs 70ms low level signal (i.e. the target signal corresponding to the current control requirement), and the cycle is output. The external machine detects the pulse signal cut-off time of 70ms (there will be errors in practice, which can be controlled in an error range, for example, 70ms±5μs), controls the compressor to run at medium frequency.

[0116] S418, judges whether 0℃≤Tloop-Tset<1℃ is met, if yes, enters S419, if not, enters S420.

[0117] S419, 0℃≤Tring-Tset<1℃, indicates that the actual indoor temperature is close to the set temperature. The indoor unit outputs a 100ms pulse signal followed by an 80ms low-level signal (the target signal corresponding to the current control requirement), and this cycle repeats. The outdoor unit detects the pulse signal cutoff time as 80ms (actually there may be errors, which can be controlled within a range, such as 80ms±5μs), and controls the compressor to run at low frequency.

[0118] S420, T-loop-T set ≥1℃ indicates that the actual indoor temperature has reached the set temperature. The indoor unit outputs a 100ms pulse signal followed by a 90ms low-level signal (the target signal corresponding to the current control requirement), and this cycle repeats. The outdoor unit detects that the pulse signal cutoff time is 90ms (actually there may be errors, which can be controlled within a range, such as 90ms ± 5μs), and controls the compressor to stop, i.e., stops when the temperature point is reached.

[0119] S421, normal communication control, means that the original communication line is used for communication between the indoor and outdoor units.

[0120] S422, the air conditioner is in the off state, and the indoor unit continuously outputs a pulse signal with a frequency of 100Hz and a duty cycle of 50% to the outdoor unit.

[0121] S423: When the unit is powered on, upon receiving a shutdown command, the indoor unit continuously outputs a 100Hz pulse signal with a 50% duty cycle to the outdoor unit. Upon detecting the continuous pulse signal, the outdoor unit shuts down the compressor and delays closing the four-way valve, completing the shutdown operation.

[0122] In cooling mode, the execution order of the judgment steps S406, S408, and S410 can be changed, or they can be executed simultaneously. In heating mode, the execution order of the judgment steps S414, S416, and S418 can be changed, or they can be executed simultaneously.

[0123] like Figure 5 The diagram shown illustrates the emergency control method after an air conditioning communication failure. Figure 2 In this embodiment, signal processing method (2) is used as an example. The preset pulse signal is a pulse signal with a frequency of 100Hz and a duty cycle of 50%. The first preset duration is 100ms, the preset number of times is 8, the second preset duration is 2s, and the target signal is a low-level signal. The process includes the following steps:

[0124] S501, the air conditioning unit is powered on.

[0125] S502: Determine if there is a communication fault between the internal and external units. If yes, proceed to S503; otherwise, proceed to S521.

[0126] S503, determine whether the air conditioner is in the start-up state, if yes, go to S504, if no, go to S522.

[0127] S504, determine the working mode of the air conditioner. In this embodiment, the cooling mode and the heating mode are taken as examples. The indoor unit can obtain the set temperature Tset input by the user and detect the actual indoor temperature Troom. If there is a dehumidification mode, the indoor unit can obtain the set humidity and detect the actual indoor humidity as the basis for determining the control requirement.

[0128] S505, determine that the working mode of the air conditioner is the cooling mode.

[0129] S506, determine whether Tset-Troom<-2℃ is satisfied, if yes, go to S507, if no, go to S508.

[0130] S507, Tset-Troom<-2℃, which means that the actual indoor temperature is too high. The indoor unit outputs a 10ms low-level signal (i.e. the target signal corresponding to the current control requirement) after outputting a 100ms pulse signal, and the cycle is repeated. When the number of 10ms low-level signal output reaches 8 times or the time length of the cycle output signal reaches 2s, the above cycle output is stopped, and a pulse signal with a frequency of 100Hz and a duty cycle of 50% is continuously output. The compressor is controlled to operate at high frequency when the air conditioner detects that the pulse signal is cut off for 10ms (there will be an error in practice, which can be controlled within an error range, for example, 10ms±5μs).

[0131] S508, determine whether-2℃≤Tset-Troom<0℃ is satisfied, if yes, go to S509, if no, go to S510.

[0132] S509, -2℃≤Tset-Troom<0℃, which means that the actual indoor temperature is slightly high. The indoor unit outputs a 20ms low-level signal (i.e. the target signal corresponding to the current control requirement) after outputting a 100ms pulse signal, and the cycle is repeated. When the number of 20ms low-level signal output reaches 8 times or the time length of the cycle output signal reaches 2s, the above cycle output is stopped, and a pulse signal with a frequency of 100Hz and a duty cycle of 50% is continuously output. The compressor is controlled to operate at medium frequency when the air conditioner detects that the pulse signal is cut off for 20ms (there will be an error in practice, which can be controlled within an error range, for example, 20ms±5μs).

[0133] S510, determine whether 0℃≤Tset-Troom<1℃ is satisfied, if yes, go to S511, if no, go to S512.

[0134] S511, 0℃≤Tset-Tloop<1℃, indicates that the actual indoor temperature is close to the set temperature, the indoor unit outputs a 100ms pulse signal every time, and then outputs a 30ms low-level signal (i.e., a target signal corresponding to the current control requirement), and the above-mentioned cycle output is repeated, when the number of 30ms low-level signal output reaches 8 times or the time length of the cycle output signal reaches 2s, the above-mentioned cycle output is stopped, and a pulse signal with a frequency of 100Hz and a duty cycle of 50% is continuously output. The outdoor unit detects that the pulse signal is cut off for 30ms (there will be an error in practice, which can be controlled in an error range, for example, 30ms±5μs), and controls the compressor to run at a low frequency, for example, the low frequency running range can be 20Hz to 40Hz.

[0135] S512, Tset-Tloop≥1℃, indicates that the actual indoor temperature reaches the set temperature, the indoor unit outputs a 100ms pulse signal every time, and then outputs a 40ms low-level signal (i.e., a target signal corresponding to the current control requirement), and the above-mentioned cycle output is repeated, when the number of 40ms low-level signal output reaches 8 times or the time length of the cycle output signal reaches 2s, the above-mentioned cycle output is stopped, and a pulse signal with a frequency of 100Hz and a duty cycle of 50% is continuously output. The outdoor unit detects that the pulse signal is cut off for 40ms (there will be an error in practice, which can be controlled in an error range, for example, 40ms±5μs), and controls the compressor to stop, i.e., to reach the temperature point stop.

[0136] S513, determines that the working mode of the air conditioner is a heating mode.

[0137] S514, judges whether Tloop-Tset<-2℃ is met, if yes, goes to S515, if not, goes to S516.

[0138] S515, Tloop-Tset<-2℃, indicates that the actual indoor temperature is too low, the indoor unit outputs a 100ms pulse signal every time, and then outputs a 60ms low-level signal (i.e., a target signal corresponding to the current control requirement), and the above-mentioned cycle output is repeated, when the number of 60ms low-level signal output reaches 8 times or the time length of the cycle output signal reaches 2s, the above-mentioned cycle output is stopped, and a pulse signal with a frequency of 100Hz and a duty cycle of 50% is continuously output. The outdoor unit detects that the pulse signal is cut off for 60ms (there will be an error in practice, which can be controlled in an error range, for example, 60ms±5μs), and controls the compressor to run at a high frequency.

[0139] S516, judges whether-2℃≤Tloop-Tset<0℃ is met, if yes, goes to S517, if not, goes to S518.

[0140] S517, -2℃≤Tloop-Tset<0℃, indicating that the actual indoor temperature is slightly lower than the set temperature, the indoor unit outputs a 100ms pulse signal, then outputs a 70ms low-level signal (i.e. the target signal corresponding to the current control requirement), and the above-mentioned cycle output is repeated, when the 70ms low-level signal is output for 8 times or the cycle output signal is output for 2s, the cycle output is stopped, and a pulse signal with a frequency of 100Hz and a duty cycle of 50% is continuously output. The outdoor unit detects that the pulse signal is cut off for 70ms (there is actually an error, which can be controlled in an error range, for example, 70ms±5μs), and controls the compressor to operate at a medium frequency.

[0141] S518, it is judged whether 0℃≤Tloop-Tset<1℃ is met, if yes, S519 is entered, and if no, S520 is entered.

[0142] S519, 0℃≤Tloop-Tset<1℃, indicating that the actual indoor temperature is close to the set temperature, the indoor unit outputs a 100ms pulse signal, then outputs an 80ms low-level signal (i.e. the target signal corresponding to the current control requirement), and the above-mentioned cycle output is repeated, when the 80ms low-level signal is output for 8 times or the cycle output signal is output for 2s, the cycle output is stopped, and a pulse signal with a frequency of 100Hz and a duty cycle of 50% is continuously output. The outdoor unit detects that the pulse signal is cut off for 80ms (there is actually an error, which can be controlled in an error range, for example, 80ms±5μs), and controls the compressor to operate at a low frequency.

[0143] S520, Tloop-Tset≥1℃, indicating that the actual indoor temperature reaches the set temperature, the indoor unit outputs a 100ms pulse signal, then outputs a 90ms low-level signal (i.e. the target signal corresponding to the current control requirement), and the above-mentioned cycle output is repeated, when the 90ms low-level signal is output for 8 times or the cycle output signal is output for 2s, the cycle output is stopped, and a pulse signal with a frequency of 100Hz and a duty cycle of 50% is continuously output. The outdoor unit detects that the pulse signal is cut off for 90ms (there is actually an error, which can be controlled in an error range, for example, 90ms±5μs), and controls the compressor to stop, i.e. to reach the temperature point stop.

[0144] S521, normal communication control, i.e. the original communication line between the indoor unit and the outdoor unit is used for communication.

[0145] S522, the air conditioner is in a shutdown state, the indoor unit continuously outputs a pulse signal with a frequency of 100Hz and a duty cycle of 50% to the outdoor unit.

[0146] S523, in the state of starting, when the inner unit receives the shutdown instruction, the inner unit outputs 50ms low level signal (i.e. the target signal corresponding to the current control demand) after every outputting 100ms pulse signal, and the above-mentioned cycle output is stopped when the output times of 50ms low level signal reaches 8 times or the time length of cycle output signal reaches 2s, and the pulse signal with the frequency of 100Hz and the duty cycle of 50% is continuously outputted. The outer unit detects that the pulse signal cut-off time is 50ms (there will be an error, which can be controlled in the error range, for example, 50ms±5μs), and the compressor and the four-way valve are closed in delay, and the shutdown operation is completed.

[0147] The execution order of the judgment steps S506, S508 and S510 in the refrigeration mode can be changed or simultaneously executed. The execution order of the judgment steps S514, S516 and S518 in the heating mode can be changed or simultaneously executed.

[0148] Through the above scheme, in the case that the communication between the inner unit and the outer unit fails and the air conditioner load is normal, the inner unit transmits a specific signal to the outer unit through the control line to control the load in the outer unit, so that the basic functions such as starting and stopping, switching the working mode and temperature point stopping can be normally operated, the user's emergency use is ensured, the air conditioner does not need to stop, the user's use experience is improved, and the problem that the air conditioner stops directly due to the communication failure between the inner unit and the outer unit in the prior art and affects the user's use experience is solved.

[0149] Embodiment 3

[0150] Based on the same inventive concept, the embodiment provides an air conditioner communication failure emergency control device, which can be used to implement the air conditioner communication failure emergency control method described in the above embodiments. The device can be realized by software and / or hardware, and the device can generally be integrated in the inner unit of the air conditioner. In this embodiment, the air conditioner includes an inner unit and an outer unit, the inner unit is provided with a pulse signal output port, the outer unit is provided with a pulse signal detection port, and the pulse signal output port and the pulse signal detection port are in communication connection.

[0151] Figure 6 is the structural block diagram of the air conditioner communication failure emergency control device provided by the embodiment of the present application, as shown in Figure 6 The device comprises:

[0152] The detection module 61 is used for detecting the communication failure between the inner unit and the outer unit.

[0153] The output module 62 is used for continuously outputting a preset pulse signal to the outer unit.

[0154] The processing module 63 is used for inserting a target signal corresponding to a control demand into the pulse signal when there is a control demand, so that the outer unit performs an operation corresponding to the control demand according to the target signal.

[0155] Optionally, the processing module 63 comprises:

[0156] a first processing unit, configured to, for a current control requirement, insert a target signal corresponding to the control requirement once after outputting a first preset time length of pulse signals, and cycle accordingly until there is a new control requirement, wherein the first preset time length is greater than or equal to a period of the pulse signals;

[0157] if the control requirement is a shutdown instruction, no target signal is inserted, and the pulse signals are continuously output.

[0158] Optionally, the processing module 63 comprises:

[0159] a second processing unit, configured to, for a current control requirement, insert a target signal corresponding to the control requirement once after outputting a first preset time length of pulse signals, and cycle accordingly until a preset number of times of insertion is reached or a second preset time length is reached, and then continuously output the pulse signals, wherein the first preset time length is greater than or equal to a period of the pulse signals, and the second preset time length is greater than or equal to a sum of the first preset time length and a time length of the target signal.

[0160] Optionally, the apparatus further comprises:

[0161] a control module, configured to, after detecting a communication failure between the indoor unit and the outdoor unit, continuously output the pulse signals to the outdoor unit if the air conditioner is in a shutdown state.

[0162] Optionally, the apparatus further comprises:

[0163] a determination module, configured to, after detecting a communication failure between the indoor unit and the outdoor unit, determine a control requirement according to a working mode, a parameter set value and a parameter actual value of the air conditioner if the air conditioner is in a startup state, and determine that there is a control requirement when a shutdown instruction is received; and determine a control requirement according to the working mode, the parameter set value and the parameter actual value of the air conditioner if the air conditioner is in a shutdown state when a startup instruction is received.

[0164] Optionally, the determination module comprises:

[0165] a calculation unit, configured to calculate a deviation degree of the parameter actual value from the parameter set value in a current working mode;

[0166] a determination unit, configured to determine a compressor target frequency range as a control requirement according to the current working mode and the deviation degree.

[0167] wherein the same compressor target frequency range in different working modes is taken as different control requirements.

[0168] Optionally, the target signal is a low-level signal or a high-level signal, and a time length of the target signal is greater than or equal to a period of the pulse signal.

[0169] Optionally, the device further comprises:

[0170] a judgment module, configured to detect whether the communication between the indoor unit and the outdoor unit is faulty after the air conditioner is powered on;

[0171] a communication control module, configured to, in a case where it is detected that the communication between the indoor unit and the outdoor unit is not faulty, perform normal communication between the indoor unit and the outdoor unit according to an original communication mode.

[0172] The device described above can perform the air conditioner communication fault emergency control method provided in the embodiments, and has the function modules and beneficial effects corresponding to the execution method. Technical details not described in detail in the embodiments can be referred to the air conditioner communication fault emergency control method provided in the embodiments.

[0173] The device embodiments described above are only schematic, and the units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, i.e., can be located in one place, or can be distributed on multiple network units. Part or all of the modules can be selected according to actual needs to achieve the purpose of the embodiment scheme.

[0174] Embodiment 4

[0175] The embodiment provides an air conditioner, which comprises the air conditioner communication fault emergency control device described in the above embodiments.

[0176] Embodiment 5

[0177] The embodiment provides a non-volatile computer readable storage medium, which stores a computer program, and the computer program is executed by a processor to implement the steps of the method described in the above embodiments.

[0178] Embodiment 6

[0179] The embodiment provides an electronic device, which comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the steps of the method described in the above embodiments when executing the computer program.

[0180] Figure 7 is a hardware structure schematic diagram of the electronic device provided in the embodiment, as shown in the figure, the electronic device comprises: Figure 7

[0181] one or more processors 710 and a memory 720, Figure 7 ​The processor 710 is taken as an example.

[0182] The electronic device can further include an input device 730 and an output device 740.

[0183] The processor 710, the memory 720, the input device 730 and the output device 740 can be connected through a bus or other means, Figure 7 The connection through the bus is taken as an example.

[0184] The memory 720, as a non-volatile computer readable storage medium, can be used to store non-volatile software programs, non-volatile computer executable programs and modules, such as program instructions / modules corresponding to the air conditioner communication fault emergency control method in the embodiments of the present application. The processor 710 executes various function applications and data processing by running the non-volatile software programs, instructions and modules stored in the memory 720, that is, implements the air conditioner communication fault emergency control method described above.

[0185] The memory 720 can include a program storage area and a data storage area, wherein the program storage area can store application programs required by the operation device and at least one function; the data storage area can store the correspondence between the target signal and the control requirement, etc. In addition, the memory 720 can include a high-speed random access memory, and can also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, or other non-volatile solid-state storage device.

[0186] The input device 730 can receive input digital or character information, and generate key signal input related to user settings and function control of the electronic device. The output device 740 can include a display device such as a display screen.

[0187] The one or more modules are stored in the memory 720, and when executed by the one or more processors 710, the air conditioner communication fault emergency control method described above is executed.

[0188] 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 plus necessary universal hardware platforms, and of course can also be realized by hardware. Based on such understanding, the above technical solutions essentially or in other words the part of the prior art that makes a contribution can be embodied in the form of a software product, which can be stored in a computer readable storage medium, such as a ROM / RAM, a magnetic disk, an optical disk, etc., and includes 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.

[0189] It should be pointed out finally that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit the same; and although the present application has been described in detail with reference to the foregoing embodiments, it should be appreciated by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features thereof can be replaced equivalently; 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 application.

Claims

1. An emergency control method for air conditioning communication failure, characterized in that, The indoor unit is equipped with a pulse signal output port, and the outdoor unit is equipped with a pulse signal detection port. The method is executed by the indoor unit, and the method includes: A communication failure between the indoor and outdoor units was detected. Continuously output a preset pulse signal to the outdoor unit; When there is a control requirement, a target signal corresponding to the control requirement is inserted into the pulse signal so that the outdoor unit performs the operation corresponding to the control requirement according to the target signal. Different control requirements correspond to different target signals.

2. The method according to claim 1, characterized in that, Inserting a target signal corresponding to the control requirement into the pulse signal includes: In response to the current control requirements, after each output of a pulse signal of a first preset duration, a target signal corresponding to the control requirements is inserted once, and this cycle is repeated until a new control requirement is required, wherein the first preset duration is greater than or equal to the period of the pulse signal; If the control requirement is a shutdown command, no target signal is inserted, and the pulse signal is continuously output.

3. The method according to claim 1, characterized in that, Inserting a target signal corresponding to the control requirement into the pulse signal includes: To meet the current control requirements, after each output of a pulse signal of a first preset duration, a target signal corresponding to the control requirements is inserted once. This process is repeated until a preset number of insertions is performed or a second preset duration is reached. After that, the pulse signal is continuously output. The first preset duration is greater than or equal to the period of the pulse signal, and the second preset duration is greater than or equal to the sum of the first preset duration and the duration of the target signal.

4. The method according to claim 1, characterized in that, After detecting a communication failure between the indoor and outdoor units, the following is also included: If the air conditioner is in the off state, it continuously outputs the pulse signal to the outdoor unit.

5. The method according to claim 1, characterized in that, After detecting a communication failure between the indoor and outdoor units, the following is also included: If the air conditioner is in the on state, the control requirements are determined according to the air conditioner's working mode, parameter setting value and actual parameter value, and when a shutdown command is received, it is determined that there are control requirements; If the air conditioner is in the off state, when a power-on command is received, the control requirements are determined based on the air conditioner's operating mode, parameter settings, and actual parameter values.

6. The method according to claim 5, characterized in that, The control requirements are determined based on the air conditioner's operating mode, parameter settings, and actual parameter values, including: In the current working mode, calculate the degree of deviation between the actual value of the parameter and the set value of the parameter; Based on the current operating mode and the degree of deviation, the target frequency range of the compressor is determined as the control requirement; Among them, the same target frequency range of the compressor under different operating modes represents different control requirements.

7. The method according to any one of claims 1 to 6, characterized in that, The target signal is a low-level signal or a high-level signal, and the duration of the target signal is greater than or equal to the period of the pulse signal.

8. The method according to any one of claims 1 to 6, characterized in that, Before detecting a communication failure between the indoor and outdoor units, the following is also included: After the air conditioner is powered on, check whether the communication between the indoor and outdoor units is faulty; If no communication failure between the indoor and outdoor units is detected, the indoor unit and the outdoor unit will communicate normally according to the original communication method.

9. An emergency control device for air conditioning communication failure, characterized in that, The indoor unit is equipped with a pulse signal output port, and the outdoor unit is equipped with a pulse signal detection port. The device is located in the indoor unit and includes: The detection module is used to detect communication faults between the indoor and outdoor units. The output module is used to continuously output a preset pulse signal to the outdoor unit; The processing module is used to insert a target signal corresponding to the control requirement into the pulse signal when there is a control requirement, so that the outdoor unit can perform the operation corresponding to the control requirement according to the target signal.

10. An air conditioner, characterized in that, include: The air conditioning communication failure emergency control device as described in claim 9.

11. An electronic device, comprising: A memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that the processor, when executing the computer program, implements the steps of the method according to any one of claims 1 to 8.

12. A non-volatile computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 8.

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