Remote controller key test circuit and device
By designing a remote control button testing circuit, a Bluetooth chip is used to receive button signals and the test results are displayed via indicator lights. This solves the problem of low efficiency and accuracy in traditional remote control button testing, and achieves efficient and intuitive button function testing.
Patent Information
- Application Number
- CN202422881427.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-11-25
AI Technical Summary
Traditional remote control button function testing is inefficient and inaccurate, requiring users to spend a lot of time finding abnormal buttons and their causes.
Design a remote control button testing circuit, including a button signal receiving module, a test result display circuit, and a button trigger status display circuit. Utilize a Bluetooth chip to receive button signals and intuitively display the test results through test result indicator lights and button trigger status indicator lights, simplifying the operation process.
It improves the comprehensiveness and accuracy of remote control button testing, simplifies the testing process, and increases testing efficiency.
Smart Images
Figure CN223582093U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a remote controller, especially a remote controller key test circuit and device. BACKGROUND
[0002] The remote controller can be used to control the smart home device to carry out various operations, for example, for the smart home device such as clothes airing machine, the various keys on the remote controller can be used to control the clothes airing machine to execute the functions such as lifting, rotating and drying.
[0003] The remote controller needs to test the key function before leaving factory, so as to guarantee that the functions of various keys on the remote controller can be normally used. The traditional key function test tool can only show the test result of the remote controller, and when the test result is abnormal, the user still needs to spend a lot of time to find the abnormal key and the abnormal reason, so the detection efficiency and accuracy are low. UTILITY MODEL CONTENT
[0004] The utility model aims at overcoming the defects and deficiencies of prior art, and provides a remote controller key test circuit and device, which can show the test result of the keys of the remote controller and the key trigger state, and improve the comprehensiveness and accuracy of the remote controller test.
[0005] In the first aspect, the utility model provides a remote controller key test circuit, including key signal receiving module, detection result display circuit and key trigger state display circuit, the detection result display circuit includes at least one detection result indicating lamp, the key trigger state display circuit includes at least one key trigger state indicating lamp corresponding with the key trigger state of key;The key signal receiving module is connected with the communication of remote controller;The key signal receiving module is connected with at least one detection result indicating lamp and at least one key trigger state indicating lamp respectively;
[0006] The key signal receiving module is used to receive the key signal of the remote controller, output first drive signal to the detection result indicating lamp of the key corresponding with the key signal to light up the detection result indicating lamp, output second drive signal to the key trigger state indicating lamp of the key corresponding with the key signal to light up the key trigger state indicating lamp.
[0007] Optionally, the number of detection result indicating lamps is same with the number of keys to be detected on the remote controller, and the number of key trigger state indicating lamps is same with the number of keys to be detected on the remote controller;
[0008] Alternatively, the number of detection result indicating lamps is same with the number of keys to be detected on the remote controller, and the number of key trigger state indicating lamps is greater than the number of keys to be detected on the remote controller;
[0009] Or, the number of the detection result indicator lights is same as the number of the keys to be detected on the remote controller, and the number of the key trigger state indicator lights is less than the number of the keys to be detected on the remote controller.
[0010] Optionally, if the number of the key trigger state indicator lights is greater than the number of the keys to be detected on the remote controller, the keys to be detected include multiple functions.
[0011] One function of the keys to be detected corresponds to one key trigger state indicator light.
[0012] Optionally, the detection result display circuit includes at least one current-limiting resistor, which is arranged between the detection result indicator light and the key signal receiving module.
[0013] The key trigger state display circuit includes at least one current-limiting resistor, which is arranged between the key trigger state indicator light and the key signal receiving module.
[0014] Optionally, it further includes a burning interface for receiving a burning program file; the burning interface is connected with the key signal receiving module.
[0015] In the embodiment of the application, the burning program file is received through the burning interface, so that the burning of the program is realized according to the burning program file, so that the key signal receiving module can output the first driving signal and the second driving signal to the corresponding detection result indicator light and key trigger state indicator light according to the key signal after receiving the key signal.
[0016] Optionally, it further includes a voltage conversion circuit; an input end of the voltage conversion circuit is connected with an input power supply, and an output end of the voltage conversion circuit is connected with the key signal receiving module, the detection result display circuit and the key trigger state display circuit.
[0017] The voltage conversion circuit is used for converting the input voltage signal of the input power supply into a target voltage signal.
[0018] In the embodiment of the application, the input voltage signal of the input power supply is converted into a target voltage signal through the voltage conversion circuit, and the target voltage signal can be used for power supply of each circuit module of the remote controller key test circuit, so as to meet the power demand of each circuit module of the remote controller key test circuit.
[0019] Optionally, the voltage conversion circuit includes a voltage conversion chip, a first electrolytic capacitor, a second electrolytic capacitor, a first capacitor, a second capacitor and a resistor.
[0020] The enable end of the voltage conversion chip is connected with the input end through a resistor, the input end of the voltage conversion chip is connected with the first end of the second electrolytic capacitor, the first end of the second capacitor and the input power supply respectively, the second end of the second electrolytic capacitor and the second end of the second capacitor are grounded, the output end of the voltage conversion chip is connected with the second end of the first electrolytic capacitor and the second end of the first capacitor respectively, and the first end of the first electrolytic capacitor and the first end of the first capacitor are grounded.
[0021] In the embodiment of the application, the input voltage signal of the input power supply is converted into a target voltage signal by using the voltage conversion chip, and the input and output voltage signals are filtered by using the electrolytic capacitor and the capacitor, so that the reliability of the output voltage signal is improved.
[0022] Optionally, the key signal receiving module comprises a Bluetooth chip.
[0023] In the embodiment of the application, the key signal of the remote controller is received by using the Bluetooth chip, the communication distance of the Bluetooth chip is farther than that of other existing communication modules, the unstable signal transmission problem caused by the too long distance between the remote controller and the test tooling can be effectively solved, and the testing accuracy is improved.
[0024] In a second aspect, the utility model provides a kind of remote controller key testing device, including remote controller and the remote controller key testing circuit as any above described;The remote controller is used to control household appliance;The remote controller and key signal receiving module are in communication connection.
[0025] The remote controller key testing device of the embodiment of the application can be used to test the key function of the remote controller of the household appliance, and the detection result and the key trigger state of the triggered key of the remote controller can be directly displayed through the detection result indicating lamp and the key trigger state indicating lamp of the remote controller key testing device, so that whether the key function of the remote controller is normal can be judged, and the detection efficiency and the comprehensiveness of detection are improved.
[0026] Optionally, the household appliance includes a clothes drying machine, a towel rack and a clothes care machine.
[0027] In the embodiment of the present application, the key signal of the remote controller is received by using the Bluetooth chip, and the detection result indicator light corresponding to the key and the key trigger state indicator light are controlled to be bright according to the key signal, so that whether the function of the key triggered on the remote controller is normal can be displayed according to the brightening condition of the detection result indicator light, and the key trigger state of the key triggered on the remote controller can be displayed according to the brightening condition of the key trigger state indicator light. The remote controller key test circuit of the embodiment of the present application is simple in structure, can intuitively display the test result and the key trigger state of the key of the remote controller, facilitates judging whether the remote controller key can normally work, does not need special test equipment and complex operation process, greatly simplifies the test process, and improves the detection efficiency and comprehensiveness.
[0028] In order to better understand and implement, the present application is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS
[0029] Figure 1 Fig. 1 is a structural schematic diagram of a remote controller key test circuit in an embodiment of the present application;
[0030] Figure 2 Fig. 4 is a circuit diagram of a detection result display circuit in an embodiment of the present application;
[0031] Figure 3 Fig. 6 is a circuit diagram of a voltage conversion circuit in an embodiment of the present application;
[0032] Figure 4 Fig. 8 is a structural schematic diagram of a remote controller key test device in an embodiment of the present application. DETAILED DESCRIPTION
[0033] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings.
[0034] It should be clear that the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.
[0035] The terms used in the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the present application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein means and includes any or all possible combinations of one or more associated listed items.
[0036] The following description refers to the accompanying drawings. Unless otherwise noted, like elements in different drawings have the same or similar numbering. The following description of example embodiments is not meant to represent all embodiments consistent with the present application. Rather, they are simply examples of apparatus and methods consistent with some aspects of the present application as detailed in the appended claims. In the description of the present application, it is to be understood that the terms "first", "second", "third", etc., merely denote like or similar objects, and are not necessarily used to describe a particular sequential or chronological order, nor are they necessarily indicative of relative importance. The specific meaning of the above terms in the present application can be understood according to the specific circumstances by those of ordinary skill in the art.
[0037] In addition, in the description of the present application, "several" means two or more, unless otherwise specified. The "and / or" describes the association between the associated objects, which means that there can be three relationships, for example, A and / or B can represent the three cases of A alone, A and B together, and B alone. The character " / " generally represents an "or" relationship between the associated objects before and after it.
[0038] As shown in the Figure 1 The utility model provides a kind of remote controller key test circuit, including key signal receiving module 110, at least one detection result indicating lamp 120 and at least one key trigger state indicating lamp 130;The key signal receiving module 110 is communicated with remote controller connection;The key signal receiving module 110 is connected with the at least one detection result indicating lamp 120 and the at least one key trigger state indicating lamp 130 respectively;
[0039] The detection result indicating lamp 120 is used to indicate the detection result of a key on the remote controller.
[0040] In the present application, when the detection result indicating lamp 120 is on, it indicates that the key signal receiving module 110 can receive the key signal of the key, and the key function of the key is normal. When the detection result indicating lamp 120 is not on, it indicates that the key signal receiving module 110 cannot receive the key signal of the key, and the key function of the key is abnormal.
[0041] The key trigger state indicating lamp 130 is used to indicate the key trigger state of a key to be detected on the remote controller. The key trigger state can include long press, short press and other states.
[0042] The key to be detected can be all or part of the keys on the remote controller. When the key to be detected is part of the keys on the remote controller, the key to be detected can be the key corresponding to the function of the remote controller that the user needs to test.
[0043] The key signal refers to a signal emitted after a key of the remote controller is triggered. The key signal can be used to determine the key of the remote controller that is triggered
[0044] The key signal receiving module 110 is configured to receive a key signal of the remote controller, output a first driving signal to a detection result indicator lamp 120 of a key corresponding to the key signal according to the key signal, and output a second driving signal to the key trigger state indicator lamp 130 of the key corresponding to the key signal, so as to light up the detection result indicator lamp 120 and the key trigger state indicator lamp 130.
[0045] In the embodiment, the key signal of the remote controller is received by using the Bluetooth chip, and the detection result indicator lamp and the key trigger state indicator lamp corresponding to the key are controlled to light up according to the key signal, so that whether the function of the key triggered on the remote controller is normal can be displayed according to the lighting of the detection result indicator lamp, and the key trigger state of the key triggered on the remote controller can be displayed according to the lighting of the key trigger state indicator lamp. The remote controller key test circuit in the embodiment has a simple structure, can intuitively display the test result and the key trigger state of the key of the remote controller, facilitates the judgment of whether the key of the remote controller can normally work, does not need special test equipment and complex operation process, greatly simplifies the test process, and improves the detection efficiency and comprehensiveness.
[0046] When the key signal is an infrared signal, the key signal receiving module 110 can be an infrared signal receiver; when the key signal is a Bluetooth signal, the key signal receiving module 110 can be a Bluetooth module.
[0047] In the embodiment, the key signal receiving module 110 can be a Bluetooth module, and the key signal receiving module 110 is communicatively connected to the remote controller through Bluetooth.
[0048] The communication distance of the traditional key signal receiving module and the remote controller is limited, and when the distance between the key signal receiving module and the remote controller is far, the signal transmission is unstable, which affects the accuracy of the test result.
[0049] Therefore, in one embodiment, the key signal receiving module 110 includes a CH582 Bluetooth chip.
[0050] In the embodiment, the key signal of the remote controller is received by using the CH582 Bluetooth chip. Compared with other existing communication modules, the CH582 Bluetooth chip has a longer communication distance, and can effectively solve the problem of unstable signal transmission caused by the remote controller being too far away from the test tool, thereby improving the accuracy of the test.
[0051] In one embodiment, the number of detection result indicator 120 can be the same as the number of keys to be detected on the remote controller, and the number of key trigger state indicator 130 can be the same as the number of keys to be detected on the remote controller, and each key trigger state indicator 130 corresponds to one key to be detected.
[0052] For different key trigger states, the color and lighting of the key trigger state indicator 130 can be used to distinguish. For example, when the key trigger state is a long press state, the color of the corresponding key trigger state indicator is red, and when the key trigger state is a short press state, the color of the corresponding key trigger state indicator is green.
[0053] Alternatively, in other embodiments, when the key trigger state is a long press state, the corresponding key trigger state indicator is always on, and when the key trigger state is a short press state, the corresponding key trigger state indicator flashes.
[0054] Alternatively, in another embodiment, the number of key trigger state indicators 130 can be greater than the number of keys to be detected on the remote controller, and multiple key trigger state indicators 130 correspond to one key to be detected, and the corresponding key trigger state indicator 130 is different when the key trigger state of the key to be detected is different.
[0055] For example, for a key on the remote controller, there can be two key trigger state indicators corresponding to the key, and the two key trigger state indicators correspond to two key trigger states, respectively. When the key trigger state is a long press state, the key trigger state indicator corresponding to the long press state is lit, and when the key trigger state is a short press state, the key trigger state indicator corresponding to the short press state is lit.
[0056] Alternatively, in another embodiment, if the number of key trigger state indicators is greater than the number of keys to be detected on the remote controller, the keys to be detected include at least one function.
[0057] One function of the key to be detected corresponds to one key trigger state indicator.
[0058] Specifically, the key to be detected can switch different functions through the state of the key, for example, the first press performs function A, and the second press switches to function B; or the key to be detected can perform function A for short press and function B for long press.
[0059] For different functions of the same key to be detected, the corresponding key trigger state indicator can be set for the function, so that the function of the key to be detected can be displayed through the key trigger state indicator.
[0060] In the embodiment, for the to-be-detected key with multiple functions, one key trigger state indication lamp is set for one function of the to-be-detected key, so as to show the function executed by the to-be-detected key through the key trigger state indication lamp, and facilitate the user to understand the currently triggered function of the multifunctional key.
[0061] Alternatively, in another embodiment, the number of detection result indication lamps 120 can be the same as the number of to-be-detected keys of the remote controller, and the number of key trigger state indication lamps 130 can be less than the number of to-be-detected keys on the remote controller.
[0062] In this embodiment, the key trigger state indication lamp 130 can correspond to at least two to-be-detected keys, and for different to-be-detected keys, the key trigger state indication lamp 130 can display different colors.
[0063] For example, when the key trigger state indication lamp 130 corresponds to two to-be-detected keys C and D, when the key signal of the to-be-detected key C is received, the key trigger state indication lamp 130 can display red, and when the key trigger state of the to-be-detected key C is a long press state, the key trigger state indication lamp 130 displays red constant light; when the key signal of the to-be-detected key D is received, the key trigger state indication lamp 130 can display green, and when the key trigger state of the to-be-detected key D is a long press state, the key trigger state indication lamp 130 displays green constant light, and so on.
[0064] In one embodiment, the detection result display circuit includes at least one current limiting resistor, and the current limiting resistor is arranged between the detection result indication lamp and the key signal receiving module.
[0065] The key trigger state display circuit includes at least one current limiting resistor, and the current limiting resistor is arranged between the key trigger state indication lamp and the key signal receiving module.
[0066] Please refer to Figure 2 , which is a schematic diagram of the detection result display circuit in one embodiment of the application; as Figure 2 shown, the detection result display circuit includes five detection result indication lamps DS1-DS5 and five current limiting resistors R1-R5.
[0067] The current limiting resistors R1-R5 are respectively arranged between the detection result indication lamps DS1-DS5 and the key signal receiving module.
[0068] In the embodiment, the current limiting resistor arranged between the detection result indication lamp and the key signal receiving module is used to limit the current flowing through the detection result indication lamp, so as to prevent the detection result indication lamp from being burned out due to excessive current, and to ensure the safety of the circuit.
[0069] In one embodiment, the remote controller key test circuit further comprises a burning interface for receiving a burning program file; the burning interface is connected with the key signal receiving module.
[0070] Burning is a process of writing program code into a chip.
[0071] The burning interface can be a commonly used communication interface such as a Universal Serial Bus (USB) interface or a Cluster Communication Port (COM) interface.
[0072] The burning program file can include the correspondence between the key signal and the to-be-tested key of the remote controller, the correspondence between the to-be-tested key and the detection result indicator light, the correspondence between the to-be-tested key and the key trigger state indicator light, and the driving signal output and the like.
[0073] After receiving the burning program file, the key signal receiving module writes the burning program file into the corresponding chip or the like hardware, realizes the burning of the burning program file, so that after receiving the key signal, the key signal receiving module determines whether the function of the to-be-tested key of the remote controller is abnormal according to the key signal and the trigger state of the key, and after determining that the function of the to-be-tested key of the remote controller is normal, outputs the first driving signal to the detection result indicator light corresponding to the key signal, and outputs the second driving signal to the key trigger state indicator light corresponding to the key and / or the trigger state of the key.
[0074] In the embodiments of the present application, the burning program file is received through the burning interface, so that the burning of the program is realized according to the burning program file, so that after receiving the key signal, the key signal receiving module can output the first driving signal and the second driving signal to the corresponding detection result indicator light and key trigger state indicator light according to the key signal.
[0075] In one embodiment, the remote controller key test circuit further comprises a voltage conversion circuit;
[0076] The input end of the voltage conversion circuit is connected with the input power supply, and the output end of the voltage conversion circuit is connected with the key signal receiving module, the detection result display circuit and the key trigger state display circuit;
[0077] The voltage conversion circuit is used for converting the input voltage signal of the input power supply into a target voltage signal.
[0078] The target voltage signal can be determined according to the power supply voltage of each circuit module in the remote controller key test circuit. In the embodiments of the present application, the input voltage signal of the input power supply can be a 5V voltage signal, and the target voltage signal can be a 3.3V voltage signal.
[0079] The voltage conversion circuit can use existing voltage conversion chips to convert the voltage of the input power supply.
[0080] In this embodiment, the input voltage signal of the input power supply is converted into a target voltage signal by a voltage conversion circuit. The target voltage signal can supply power to each circuit module of the remote control button test circuit, thus meeting the power requirements of each circuit module of the remote control button test circuit.
[0081] like Figure 3 As shown, in one embodiment, the voltage conversion circuit includes a voltage conversion chip U2, a first electrolytic capacitor EC1, a second electrolytic capacitor EC2, a first capacitor C6, a second capacitor C7, and a resistor R11;
[0082] The enable terminal EN of voltage converter chip U2 is connected to the input terminal VIN through resistor R11. The input terminal VIN of voltage converter chip U2 is connected to the first terminal of the second electrolytic capacitor EC2, the first terminal of the second capacitor C7, and the 5V input power supply. The second terminal of the second electrolytic capacitor EC2 and the second terminal of the second capacitor C7 are grounded. The output terminal VOUT of voltage converter chip U2 is connected to the second terminal of the first electrolytic capacitor EC1 and the second terminal of the first capacitor C6. The first terminals of the first electrolytic capacitor EC1 and the first terminals of the first capacitor C6 are grounded.
[0083] The output terminal VOUT of the voltage conversion chip U2 can be connected to the button signal receiving module, the test result display circuit, and the button trigger status display circuit of the remote control button test circuit, thereby meeting the power requirements of each circuit module.
[0084] The voltage conversion chip U2 can be an existing voltage conversion chip.
[0085] In this embodiment, the input voltage signal of the input power supply can be a 5V voltage signal, the target voltage signal can be a 3.3V voltage signal, the voltage conversion chip U2 can be an MD7218E33-5 chip, the capacitance value of electrolytic capacitors EC1-EC2 can be 220uF, and the capacitance value of capacitors C6-C7 can be 0.1uF.
[0086] In this embodiment, the input voltage signal of the input power supply is converted into a target voltage signal by a voltage conversion chip, and the input and output voltage signals are filtered by electrolytic capacitors and capacitors, thereby improving the reliability of the output voltage signal.
[0087] like Figure 4 As shown, this application embodiment also provides a remote control button testing device 200, including a remote control button testing circuit 210 as described in any of the above claims.
[0088] The key signal receiving module is in communication connection with the remote controller.
[0089] The remote controller is used for controlling the household appliance.
[0090] Specifically, each key on the remote controller can correspond to a function of the household appliance, and the household appliance is controlled to perform the corresponding function by triggering the key on the remote controller.
[0091] The remote controller key testing device of the embodiment of the application can be used for testing the key function of the remote controller of the household appliance, and the detection result indicator light and the key triggering state indicator light of the remote controller key testing device can directly show the detection result and the key triggering state of the triggered key of the remote controller, so that it is convenient to judge whether the key function of the remote controller is normal, and the detection efficiency and the comprehensiveness of detection are improved.
[0092] In one embodiment, the household appliance includes a clothes airing machine, a towel rack and a clothes care machine.
[0093] When the household appliance is the clothes airing machine, the clothes airing machine is controlled to perform the functions of lifting, rotating and drying by triggering the key on the remote controller.
[0094] The utility model is not limited to the above-mentioned implementation, if the various changes or deformation of the utility model do not deviate from the spirit and scope of the utility model, if these changes and deformation belong to the right claim and equivalent technical scope of the utility model, then the utility model also intends to contain these changes and deformation.
Claims
1. A remote control key test circuit, characterized by: The key signal receiving module is connected with the remote controller, and is connected with the at least one detection result indicator lamp and the at least one key trigger state indicator lamp. The key signal receiving module is used for receiving the key signal of the remote controller, outputting a first driving signal to the detection result indicator lamp of the key corresponding to the key signal to light up the detection result indicator lamp, and outputting a second driving signal to the key trigger state indicator lamp of the key corresponding to the key signal to light up the key trigger state indicator lamp.
2. The remote control key test circuit of claim 1, wherein: The number of the detection result indicator lamps is the same as the number of the keys to be detected on the remote controller, and the number of the key trigger state indicator lamps is the same as the number of the keys to be detected on the remote controller. Alternatively, the number of the detection result indicator lamps is the same as the number of the keys to be detected on the remote controller, and the number of the key trigger state indicator lamps is greater than the number of the keys to be detected on the remote controller. Alternatively, the number of the detection result indicator lamps is the same as the number of the keys to be detected on the remote controller, and the number of the key trigger state indicator lamps is less than the number of the keys to be detected on the remote controller.
3. The remote control key test circuit of claim 2, wherein: If the number of the key trigger state indicator lamps is greater than the number of the keys to be detected on the remote controller, the keys to be detected include multiple functions. One function of the keys to be detected corresponds to one key trigger state indicator lamp.
4. The remote control key test circuit of claim 1, wherein, The detection result display circuit includes at least one current limiting resistor, and the current limiting resistor is arranged between the detection result indicator lamp and the key signal receiving module. The key trigger state display circuit includes at least one current limiting resistor, and the current limiting resistor is arranged between the key trigger state indicator lamp and the key signal receiving module.
5. The remote control button test circuit of claim 1, wherein: The voltage conversion circuit is used for converting the input voltage signal of the input power supply into a target voltage signal.
6. The remote control button test circuit of claim 1, wherein: The voltage conversion circuit includes a voltage conversion chip, a first electrolytic capacitor, a second electrolytic capacitor, a first capacitor, a second capacitor and a resistor. The enable end of the voltage conversion chip is connected with the input end through the resistor, the input end of the voltage conversion chip is connected with the first end of the second electrolytic capacitor, the first end of the second capacitor and the input power supply respectively, the second end of the second electrolytic capacitor and the second end of the second capacitor are grounded, the output end of the voltage conversion chip is connected with the second end of the first electrolytic capacitor and the second end of the first capacitor respectively, and the first end of the first electrolytic capacitor and the first end of the first capacitor are grounded.
7. The remote control button test circuit of claim 6, wherein: 8. The remote control key test circuit of claim 1, wherein: The key signal receiving module comprises a Bluetooth chip.
9. A remote control button testing device, characterized in that, The remote control key test circuit comprises the remote control key test circuit according to any one of claims 1-8; the key signal receiving module is in communication connection with the remote control. The remote control is used for controlling the household appliance.
10. The remote control key tester of claim 9, wherein: The household appliance comprises a clothes airing machine, a towel rack and a clothes care machine.