Vibration detection circuit, vibration detection device and electric appliance control method

Abstract

The invention discloses a vibration detection circuit, a vibration detection device and an electric appliance control method, and relates to the technical field of vibration detection, the circuit comprises a comparator and at least two vibration switches; one end of each vibration switch is electrically connected to one input end of the comparator, and the other end of each vibration switch is grounded; one input end of the comparator is also electrically connected to a predetermined power supply, and the other input end of the comparator is electrically connected with a reference voltage; the output end of the comparator serves as the output end of the vibration detection circuit and is electrically connected to a preset signal receiving end. According to the technical scheme provided by the invention, more accurate and effective vibration signals can be obtained, so that the misjudgment rate of whether the target object vibrates or not is reduced.

Description

Technical Field

[0001] The present application relates to the field of vibration detection technology, and in particular to a vibration detection circuit, a vibration detection device and an electrical appliance control method. Background Art

[0002] At present, in the technical scheme of using vibration switches for vibration detection, due to the singleness, instability and irregularity of the signal of the vibration switch itself, only a simple judgment of whether vibration occurs can be made, and it is difficult to apply it to occasions that require precise control / action. In addition, in the process of making simple vibration judgments, slight touches, movements and other actions are often misjudged as vibrations. That is, the existing vibration detection scheme using vibration switches has a high misjudgment rate and is difficult to be widely used. Summary of the invention

[0003] In response to the above-mentioned problems in the prior art, the present application proposes a vibration detection circuit, a vibration detection device and an electrical control method, which can obtain a more accurate and effective vibration signal to reduce the misjudgment rate of whether the target object is vibrating.

[0004] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0005] In a first aspect, an embodiment of the present invention provides a vibration detection circuit, comprising: a comparator and at least two vibration switches; one end of each of the vibration switches is electrically connected to an input end of the comparator, and the other end of each of the vibration switches is grounded; the one input end of the comparator is also electrically connected to a predetermined power supply, and the other input end of the comparator is electrically connected to a reference voltage; the output end of the comparator is electrically connected to a predetermined signal receiving end as the output end of the vibration detection circuit.

[0006] In a technical solution of the above vibration detection circuit, it also includes: a voltage stabilizing capacitor; one end of the voltage stabilizing capacitor is electrically connected to the one input end of the comparator, and the other end of the voltage stabilizing capacitor is grounded.

[0007] In a technical solution of the above vibration detection circuit, it also includes: a current limiting resistor; one end of the current limiting resistor is electrically connected to the predetermined power supply, and the other end of the current limiting resistor is electrically connected to the one input end of the comparator.

[0008] In a technical solution of the above vibration detection circuit, the value of the reference voltage is adjustable.

[0009] In a technical solution of the above-mentioned vibration detection circuit, it also includes: a first adjustable resistor and a second adjustable resistor; one end of the first adjustable resistor is electrically connected to the predetermined power supply, the other end of the first adjustable resistor is electrically connected to one end of the second adjustable resistor, and the other end of the second adjustable resistor is grounded; the output voltage of the other end of the first adjustable resistor is electrically connected to the other end of the comparator as the reference voltage.

[0010] In a technical solution of the above vibration detection circuit, one end of each of the vibration switches is electrically connected to the non-inverting input end of the comparator; and the inverting input end of the comparator is electrically connected to the reference voltage.

[0011] In a technical solution of the above vibration detection circuit, the vibration switch is a ball switch or a spring switch.

[0012] In a second aspect, an embodiment of the present invention provides a vibration detection device, comprising: a control module, and the vibration detection circuit described in the embodiment of the first aspect; the output end of the vibration detection circuit is electrically connected to the control module; the control module is used to determine whether the target object to be detected vibrates based on the output signal of the vibration detection circuit.

[0013] In a third aspect, an embodiment of the present invention provides an electrical appliance control method, which is applied to an electrical appliance control system; the system comprises: a target electrical appliance, and the vibration detection circuit described in the embodiment of the first aspect; the vibration detection circuit is arranged in the target electrical appliance; the method comprises:

[0014] Based on the output signal of the vibration detection circuit, it is determined whether the target electrical appliance vibrates.

[0015] In a technical solution of the above-mentioned electrical appliance control method, the method further includes:

[0016] During the operation of the target electrical appliance, obtaining the number of pulse signals output by the vibration detection circuit and obtaining the duration of each pulse signal;

[0017] When the duration is greater than a preset time threshold, or when the number is greater than a preset number threshold within a predetermined time period, the target electrical appliance is controlled to stop running.

[0018] The vibration detection circuit, vibration detection device and electrical appliance control method provided by the embodiment of the present invention adopt at least two vibration switches in parallel to improve the effectiveness of the vibration switch output signal. At a certain moment of vibration detection, only when multiple vibration switches are in the disconnected state at the same time, the comparator can output the corresponding high level or low level signal, thus greatly improving the stability and effectiveness of the detection signal. It can be seen that the technical solution provided by the embodiment of the present invention can obtain a more accurate and effective vibration signal to reduce the misjudgment rate of whether the target object is vibrating. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] Figure 1 A schematic diagram of the structure of a vibration detection circuit provided by an embodiment of the present invention;

[0022] Figure 2 A circuit schematic diagram of another vibration detection circuit provided by an embodiment of the present invention;

[0023] Figure 3 A schematic diagram of the structure of a vibration switch provided by an embodiment of the present invention;

[0024] Figure 4 A schematic structural diagram of a vibration detection device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0026] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0027] At present, in the technical scheme of using vibration switches for vibration detection, due to the singleness, instability and irregularity of the signal of the vibration switch itself, only a simple judgment of whether vibration occurs can be made, and it is difficult to apply it to occasions that require precise control / action. In addition, in the process of making simple vibration judgments, slight touches, movements and other actions are often misjudged as vibrations. That is, the existing vibration detection scheme using vibration switches has a high misjudgment rate and is difficult to be widely used.

[0028] In order to solve the above technical problems in the prior art, an embodiment of the present invention provides a vibration detection circuit, such as Figure 1 As shown, the vibration detection circuit described in this embodiment includes: a comparator and at least two vibration switches; one end of each of the vibration switches is electrically connected to an input end of the comparator, and the other end of each of the vibration switches is grounded; the one input end of the comparator is also electrically connected to a predetermined power supply, and the other input end of the comparator is electrically connected to a reference voltage; the output end of the comparator is electrically connected to a predetermined signal receiving end as the output end of the vibration detection circuit.

[0029] In this embodiment, at least two vibration switches are connected in parallel through the above-mentioned connection method. During the vibration detection process, the comparator will have a corresponding high level or low level output only when the multiple vibration switches are disconnected at the same time. In this way, the stability and effectiveness of the vibration detection signal can be greatly improved.

[0030] In one implementation, the number of the vibration switches is 2. Of course, in practical applications, the number of vibration switches can be adjusted accordingly according to the requirements for the sensitivity of vibration detection, and this embodiment does not impose any specific limitation on this.

[0031] In this embodiment, the reference voltage is a predetermined voltage value. The voltage value of the input terminal of the comparator connected to the vibration switch is compared with the reference voltage, so that the comparator can output a high level signal or a low level signal based on the comparison result. When the vibration switch vibrates, it is in a frequently on and off state, and by connecting multiple vibration switches in parallel, only when multiple vibration switches are in a closed or open state at a certain moment, the comparator will have a corresponding high level or low level signal output. In this way, during the vibration process, a pulse signal can be obtained through the comparator, and the duration of the pulse signal represents the duration of the vibration, and the number of pulse signals represents the number of times the vibration occurs.

[0032] Furthermore, in one embodiment, in order to simplify the circuit structure, one end of each of the vibration switches is electrically connected to the non-inverting input end of the comparator; and the inverting input end of the comparator is electrically connected to the reference voltage.

[0033] Specifically, Figure 2 As shown, the comparator is implemented by an integrated chip IC3, which can collect four inputs and generate two outputs, equivalent to two comparators. One end of the vibration switch J1 and J2 is electrically connected to the in-phase input terminal +InA, and the inverting input terminal -InA of the comparator is electrically connected to the reference voltage.

[0034] Furthermore, in one embodiment, in order to ensure the stability of the vibration switch voltage, the vibration detection circuit described in this embodiment also includes: a voltage stabilizing capacitor; one end of the voltage stabilizing capacitor is electrically connected to the one input end of the comparator, and the other end of the voltage stabilizing capacitor is grounded.

[0035] Specifically, Figure 2 As shown, one end of the voltage stabilizing capacitor C1 is electrically connected to the non-inverting input terminal +InA of the comparator, and the other end of the voltage stabilizing capacitor C1 is grounded, that is, the voltage stabilizing capacitor C1 is connected in parallel with the two vibration switches J1 and J2 to ensure the stability of the voltage across the two vibration switches J1 and J2.

[0036] Furthermore, in one embodiment, in order to ensure the safety of the circuit, the vibration detection circuit described in this embodiment also includes: a current limiting resistor; one end of the current limiting resistor is electrically connected to the predetermined power supply, and the other end of the current limiting resistor is electrically connected to the one input end of the comparator.

[0037] Specifically, Figure 2 As shown, one end of the current limiting resistor R11 is electrically connected to the predetermined power supply VCC1, and the other end of the current limiting resistor R11 is electrically connected to the in-phase input terminal +InA of the comparator to ensure that the current flowing through the vibration switches J1 and J2 is not too large, thereby ensuring the safety of the entire circuit.

[0038] Furthermore, in one embodiment, in order to improve the convenience and flexibility of the circuit in actual use, the value of the reference voltage described in this embodiment is adjustable. Figure 2 The voltage of the inverting input terminal -InA is shown to be adjustable.

[0039] Furthermore, in one embodiment, in order to accurately and effectively adjust the value of the above-mentioned reference voltage, the vibration detection circuit described in this embodiment also includes: a first adjustable resistor and a second adjustable resistor; one end of the first adjustable resistor is electrically connected to the predetermined power supply, the other end of the first adjustable resistor is electrically connected to one end of the second adjustable resistor, and the other end of the second adjustable resistor is grounded; the output voltage of the other end of the first adjustable resistor is electrically connected to the other end of the comparator as the reference voltage.

[0040] Specifically, Figure 2 As shown, one end of the first adjustable resistor R12 is electrically connected to a predetermined power supply VCC1, the other end of the first adjustable resistor R12 is electrically connected to one end of the second adjustable resistor R15, and the other end of the second adjustable resistor R15 is grounded; the output voltage of the other end of the first adjustable resistor R12 is electrically connected to the inverting input terminal -InA of the comparator IC3 as the above-mentioned reference voltage. In this way, by adjusting the resistance values ​​of the first adjustable resistor R12 and the second adjustable resistor R15, the reference voltage of the inverting input terminal -InA of the input comparator can be changed, so that the reference voltage can be flexibly, conveniently and effectively adjusted according to actual needs.

[0041] Furthermore, in one embodiment, in order to reduce application cost and simplify circuit structure, the vibration switch described in this embodiment is a ball switch or a spring switch.

[0042] Specifically, Figure 3 The schematic diagram of the structure of the ball switch is shown, in which the middle round object is a ball 1. When the ball 1 touches the guide pin 2 at either end, the circuit can be turned on because the inner shell in contact with the ball 1 is also a conductor. When the ball switch vibrates, the ball 1 will frequently contact and separate from the guide pin 2, thus frequently turning on and off the circuit, thereby generating a switching signal of a certain frequency.

[0043] The difference between a spring switch and a ball switch is that the circuit is turned on by contacting a guide pin with a spring around the guide pin. The overall working principle is similar to that of a ball switch and will not be described in detail here.

[0044] Figure 2The working principle of the circuit diagram shown is: when the two vibration switches J1 and J2 vibrate, J1 and J2 will be frequently turned on and off, and only when J1 and J2 are disconnected at the same time, the pin 3 of the comparator IC3, that is, the non-inverting input terminal of the comparator IC3 will be clamped at a high level. The reference voltage connected to the inverting input terminal of the comparator IC3 is pre-set to be lower than the voltage clamped at a high level. At this time, the voltage of the non-inverting input terminal is greater than the voltage of the inverting input terminal, so that the comparator outputs a high-level signal through the output terminal OutA. When the vibration switch J1 or J2 is turned on, the non-inverting input terminal of the comparator IC3 is grounded. At this time, the voltage of the inverting input terminal is greater than the voltage of the non-inverting input terminal, so that the comparator outputs a low-level signal through the output terminal OutA. In this way, during the vibration process, the output terminal of the comparator will continuously output high and low level signals, that is, pulse signals. When the predetermined signal receiving terminal detects the pulse signal, it can be determined that the vibration switches J1 and J2 have vibrated.

[0045] The vibration detection circuit provided by the embodiment of the present invention adopts at least two vibration switches in parallel to improve the effectiveness of the vibration switch output signal. At a certain moment of vibration detection, only when multiple vibration switches are in the disconnected state at the same time, the comparator can output the corresponding high level or low level signal, thus greatly improving the stability and effectiveness of the detection signal. It can be seen that the technical solution provided by the embodiment of the present invention can obtain a more accurate and effective vibration signal to reduce the misjudgment rate of whether the target object is vibrating.

[0046] The embodiment of the present invention adopts a method of connecting multiple vibration switches in parallel to detect vibration. Compared with the prior art, it reduces the detection signal and noise signal when using a single vibration switch, improves the effectiveness, regularity and stability of the detection signal, and effectively avoids false detection.

[0047] In addition, the function of parallel detection of multiple vibration switches can be realized by software.

[0048] Specifically, one pulse signal is obtained by connecting a vibration switch to a comparator, and another pulse signal is obtained by connecting another vibration switch to another comparator. In this way, two pulse signals can be obtained. The two pulse signals are processed by software, and a pulse signal with the same high and low level signals in the same time period is taken as the valid signal to achieve the same technical effect as connecting two vibration switches in parallel in hardware.

[0049] The above only uses the example of obtaining two pulse signals to illustrate the software processing method. In actual applications, multiple pulse signals can also be obtained according to actual needs, and a pulse signal with the same high and low level signals in the same time period can be obtained as a valid signal to achieve the effect of connecting multiple vibration switches in parallel in hardware.

[0050] Furthermore, the present invention also provides a vibration detection device, such as Figure 4 As shown, it includes: a control module, and the vibration detection circuit described in the above embodiment; the output end of the vibration detection circuit is electrically connected to the control module; the control module is used to determine whether the target object to be detected vibrates based on the output signal of the vibration detection circuit.

[0051] In this embodiment, the output terminal of the vibration detection circuit is Figure 1 and Figure 2 As described above, the comparator outputs a pulse signal, and the control module is electrically connected to the output end of the comparator. When the control module receives the pulse signal, it is determined that the vibration switch has vibrated. When the vibration switch is set on a target object to be detected, it is determined that the target object to be detected has vibrated.

[0052] Existing household appliances, such as washing machines, shoe washers, dishwashers, etc., will generate vibrations to a greater or lesser extent during operation. In order to monitor the vibration and ensure the safe operation of the appliances, vibration detection sensors need to be installed on these appliances. Currently, commonly used vibration sensors include impact rod micro switches, acceleration sensors, etc., but they are relatively expensive. Therefore, it is possible to consider applying low-cost vibration switches to the detection of electrical appliance vibrations.

[0053] However, the vibration switch is prone to malfunction of the target electrical appliance due to its single signal form, unstable and irregular signals. Since the signal detected by the vibration switch is a 0 / 1 signal, it has no regularity and is highly random. Therefore, traditional signal filtering methods, such as bandpass, high-pass, low-pass, median, and moving methods, are not suitable for filtering applications of vibration switches. That is, the current filtering method cannot fundamentally identify which signals are valid signals and which are noise signals. Therefore, a signal processing circuit and method are needed to make the vibration signal obtained by the vibration switch more effective, improve the signal-to-noise ratio of the signal, and avoid malfunction of the target electrical appliance.

[0054] Based on this, the present invention also provides an electrical appliance control method, which is applied to an electrical appliance control system; the system comprises: a target electrical appliance, and the vibration detection circuit described in the first aspect embodiment; the vibration detection circuit is arranged in the target electrical appliance. The method described in this embodiment comprises: judging whether the target electrical appliance vibrates based on an output signal of the vibration detection circuit.

[0055] Furthermore, in one embodiment, in order to more effectively control the target electrical appliance to ensure the safety of the operation of the target electrical appliance, the method described in this embodiment also includes: during the operation of the target electrical appliance, obtaining the number of pulse signals output by the vibration detection circuit, and obtaining the duration of each of the pulse signals; when the duration is greater than a preset duration threshold, or when the number is greater than a preset number threshold within a predetermined time period, controlling the target electrical appliance to stop running.

[0056] In one embodiment, the executor of the above method can be a controller of the target appliance, and the output end of the above vibration detection circuit can be electrically connected to the controller, so that the controller can determine whether the target appliance vibrates based on the output signal of the vibration detection circuit.

[0057] In this embodiment, the output terminal of the vibration detection circuit is Figure 1 and Figure 2 As described above, the comparator outputs a pulse signal, and the controller of the target electrical appliance is electrically connected to the output end of the comparator. When the controller receives the pulse signal, it determines that the target electrical appliance has vibrated.

[0058] In order to more effectively control the target electrical appliance to ensure the safety of the operation of the target electrical appliance, the controller described in this embodiment is also used to: during the operation of the target electrical appliance, obtain the number of pulse signals output by the vibration detection circuit and obtain the duration of each pulse signal; when the duration is greater than a preset duration threshold, or when the number is greater than a preset number threshold within a predetermined time period, control the target electrical appliance to stop running.

[0059] In this embodiment, since each pulse signal represents a vibration of the target electrical appliance, the number of vibrations of the target electrical appliance can be obtained by counting the number of pulse signals; since the duration of each pulse signal represents the duration of the vibration of the target electrical appliance, the duration of the vibration of the target electrical appliance can be obtained by counting the duration of each pulse signal. When the number of vibrations of the target electrical appliance is too large within a certain period of time and exceeds a preset number threshold, or when a certain vibration lasts too long, the target electrical appliance needs to be promptly controlled to stop running to ensure its operating safety.

[0060] The vibration detection circuit, vibration detection device and electrical appliance control method provided by the embodiment of the present invention adopt at least two vibration switches in parallel to improve the effectiveness of the vibration switch output signal. At a certain moment of vibration detection, only when multiple vibration switches are in the disconnected state at the same time, the comparator can output the corresponding high level or low level signal, thus greatly improving the stability and effectiveness of the detection signal. It can be seen that the technical solution provided by the embodiment of the present invention can obtain a more accurate and effective vibration signal to reduce the misjudgment rate of whether the target object is vibrating.

[0061] Corresponding to the above method embodiment, the present invention further provides an electrical appliance control device, which is applied to an electrical appliance control system; the system comprises: a target electrical appliance, and the vibration detection circuit described in the above first aspect embodiment; the vibration detection circuit is arranged in the target electrical appliance. The device described in this embodiment comprises:

[0062] The judging unit is used to judge whether the target electrical appliance vibrates based on the output signal of the vibration detection circuit.

[0063] Furthermore, in one embodiment, the device further comprises:

[0064] an acquisition unit, used to acquire the number of pulse signals output by the vibration detection circuit and the duration of each pulse signal during the operation of the target electrical appliance;

[0065] The control unit is used to control the target electrical appliance to stop running when the duration is greater than a preset duration threshold, or when the number is greater than a preset number threshold within a predetermined time period.

[0066] The above-mentioned electrical control device is used to execute the embodiment of the electrical control method described above. The technical principles, technical problems solved and technical effects produced by the two are similar. Technical personnel in this technical field can clearly understand that for the convenience and conciseness of description, the specific working process and related instructions of the electrical control device can refer to the contents described in the embodiment of the above-mentioned electrical control method, and will not be repeated here.

[0067] It is understood by those skilled in the art that the present invention implements all or part of the processes in the method of the above embodiment, and can also be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable storage medium may include: any entity or device, medium, U disk, mobile hard disk, disk, optical disk, computer memory, read-only memory, random access memory, electric carrier signal, telecommunication signal and software distribution medium that can carry the computer program code. It should be noted that the content contained in the computer-readable storage medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable storage media do not include electric carrier signals and telecommunication signals.

[0068] Furthermore, the present invention also provides a computer-readable storage medium, wherein the computer-readable storage medium includes a stored program, wherein the electrical appliance control method described in the above method embodiment is executed when the program is run.

[0069] Furthermore, the present invention also provides an electronic device, including a memory and a processor, wherein the memory stores a computer program, and the processor is configured to execute the electrical appliance control method described in the above method embodiment through the computer program.

[0070] Further, it should be understood that since the setting of each module is only for illustrating the functional units of the device of the present invention, the physical devices corresponding to these modules can be the processor itself, or a part of the software in the processor, a part of the hardware, or a part of the combination of software and hardware. Therefore, the number of each module in the figure is only schematic.

[0071] Those skilled in the art will appreciate that the modules in the device can be adaptively split or merged. Such splitting or merging of specific modules will not cause the technical solution to deviate from the principle of the present invention, and therefore, the technical solutions after splitting or merging will fall within the protection scope of the present invention.

[0072] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A vibration detection circuit, characterized in that: include: A comparator and at least two vibration switches; one end of each of the vibration switches is electrically connected to an input end of the comparator, and the other end of each of the vibration switches is grounded; the one input end of the comparator is also electrically connected to a predetermined power supply, and the other input end of the comparator is electrically connected to a reference voltage; the output end of the comparator is electrically connected to a predetermined signal receiving end as the output end of the vibration detection circuit.

2. The vibration detection circuit according to claim 1, characterized in that: Also includes: A voltage-stabilizing capacitor; one end of the voltage-stabilizing capacitor is electrically connected to the one input end of the comparator, and the other end of the voltage-stabilizing capacitor is grounded.

3. The vibration detection circuit according to claim 1, characterized in that: Also includes: A current limiting resistor; one end of the current limiting resistor is electrically connected to the predetermined power supply, and the other end of the current limiting resistor is electrically connected to the one input end of the comparator.

4. The vibration detection circuit according to claim 1, characterized in that: The value of the reference voltage is adjustable.

5. The vibration detection circuit according to claim 4, characterized in that: Also includes: A first adjustable resistor and a second adjustable resistor; one end of the first adjustable resistor is electrically connected to the predetermined power supply, the other end of the first adjustable resistor is electrically connected to one end of the second adjustable resistor, and the other end of the second adjustable resistor is grounded; the output voltage of the other end of the first adjustable resistor is electrically connected to the other end of the comparator as the reference voltage.

6. The vibration detection circuit according to claim 1, characterized in that: One end of each of the vibration switches is electrically connected to the non-inverting input end of the comparator; and the inverting input end of the comparator is electrically connected to the reference voltage.

7. The vibration detection circuit according to claim 1, characterized in that: The vibration switch is a ball switch or a spring switch.

8. A vibration detection device, characterized in that: include: A control module, and a vibration detection circuit according to any one of claims 1 to 7; an output end of the vibration detection circuit is electrically connected to the control module; The control module is used to determine whether the target object to be detected is vibrating based on the output signal of the vibration detection circuit.

9. An electrical appliance control method, characterized in that: Applied to an electrical appliance control system; the system comprises: a target electrical appliance, and a vibration detection circuit according to any one of claims 1 to 7; the vibration detection circuit is arranged in the target electrical appliance; the method comprises: Based on the output signal of the vibration detection circuit, it is determined whether the target electrical appliance vibrates.

10. The electrical appliance control method according to claim 9, characterized in that: The method further comprises: During the operation of the target electrical appliance, obtaining the number of pulse signals output by the vibration detection circuit and obtaining the duration of each pulse signal; When the duration is greater than a preset time threshold, or when the number is greater than a preset number threshold within a predetermined time period, the target electrical appliance is controlled to stop running.

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