Switch control method and related device

Abstract

The present invention relates to a switch control method, a switch controller, a switching device and a storage medium. The method includes: when a preset first control condition is satisfied, obtaining a first harmonic of the switching device; judging whether a preset second control condition is satisfied according to the first harmonic; and when the second control condition is satisfied, outputting a disconnection control instruction. The above-mentioned switch control method and its related devices have high working reliability.

Description

Technical Field

[0001] The present invention relates to the technical field of switch control, and particularly to a switch control method and related devices thereof. Background Art

[0002] At present, with the continuous development of switch control technology, switch devices are widely used in various power consumption occasions. In practical applications, the switch device is installed on the input side of the power consumption circuit. By controlling the engagement or disconnection of the contacts of the switch device, the conduction and power-off of the power consumption circuit can be controlled. When an abnormality occurs in the power consumption circuit, the power consumption circuit can be protected by disconnecting the switch device.

[0003] However, in practical applications, since the power consumption circuit is prone to misoperation events of the switch device, the misoperation events cause the switch device to mistakenly think that power-off protection needs to be performed on the normally operating power consumption circuit, so that the switch device is mistakenly closed, and the reliability of the work of the switch device cannot be guaranteed and is low. Summary of the Invention

[0004] Based on the above technical problems, it is necessary to provide a switch control method and related devices thereof with high working reliability.

[0005] In a first aspect, the present invention provides a switch control method, the method comprising:

[0006] When a preset first control condition is satisfied, the first harmonic of the switch device is obtained; wherein, the first control condition is used to represent that the switch device is determined to have a disconnection requirement, and the first harmonic is the harmonic corresponding to the electrical signal of the switch device when the first control condition is satisfied;

[0007] According to the first harmonic, it is judged whether a preset second control condition is satisfied; wherein, the second control condition is used to represent that there is no misoperation event of the switch device, and the switch device is used to control the conduction or disconnection of the power consumption circuit;

[0008] When the second control condition is satisfied, a disconnection control instruction is output; wherein, the disconnection control instruction is used to control the switch device to disconnect.

[0009] In a second aspect, the present invention further provides a switch controller, which is used to be connected to a switch device to control the conduction or disconnection of the switch device; the switch controller comprises:

[0010] A signal processing module, configured to obtain the first harmonic of the switch device when a preset first control condition is satisfied; wherein, the first control condition is used to represent that the switch device is determined to have a disconnection requirement, and the first harmonic is the harmonic corresponding to the electrical signal of the switch device when the first control condition is satisfied;

[0011] A malfunction discrimination module, configured to determine whether a preset second control condition is satisfied according to the first harmonic; wherein, the second control condition is used to characterize that there is no malfunction event in the switching device, and the switching device is used to control the on or off of the power consumption circuit; and,

[0012] A switch driving module, configured to output a disconnection control instruction when the second control condition is satisfied; wherein, the disconnection control instruction is used to control the switching device to disconnect.

[0013] In a third aspect, the present invention further provides a switching device, including a first switching tube and a second switching tube. The control electrode of the first switching tube and the control electrode of the second switching tube are connected in parallel to the switch driving module. The first pole of the first switching tube and the first pole of the second switching tube are connected in series with each other. The second pole of the first switching tube is used to connect to the input end of the power consumption circuit, and the second pole of the second switching tube is connected to the output end of the power consumption circuit; wherein:

[0014] The switch protection module is configured to control the disconnection of the switching device from the power consumption circuit under the drive of the disconnection control instruction.

[0015] In a fourth aspect, the present invention further provides a switch control system, including a memory and a processor. The memory stores a computer program, and when the processor executes the computer program, the steps of the above-mentioned switch control method are implemented.

[0016] In a fifth aspect, the present invention further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the above-mentioned switch control method are implemented.

[0017] In the above-mentioned switch control method and related devices, after the switching device has a disconnection requirement and before the disconnection instruction is output, it is possible to determine whether the second control condition is satisfied according to the first harmonic, that is, to determine whether there is a malfunction event in the switching device based on the first harmonic. If not, it is determined that the second control condition is satisfied, and a disconnection control instruction is output, effectively avoiding the switching device from being mistakenly turned off due to a malfunction event, thus ensuring the normal operation of the power consumption circuit and greatly improving the working reliability of the switching device. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0019] Figure 1 Flow schematic diagram of a switch control method for an embodiment;

[0020] Figure 2 Flow schematic diagram of the waveform discrimination step of the first harmonic for an embodiment;

[0021] Figure 3 Flow schematic diagram of the misoperation discrimination model acquisition step for an embodiment;

[0022] Figure 4 Flow schematic diagram of the misoperation discrimination model acquisition step for another embodiment;

[0023] Figure 5 Structural schematic diagram of a switch controller for an embodiment;

[0024] Figure 6 Structural schematic diagram of a switching device for an embodiment;

[0025] Figure 7 Module structural schematic diagram of an acquisition and comparison circuit for an embodiment;

[0026] Figure 8 Structural schematic diagram of an acquisition module for an embodiment;

[0027] Figure 9 For Figure 8 Structural schematic diagram of the acquisition module of;

[0028] Figure 10 Structural schematic diagram of a judgment and comparison module for an embodiment. Detailed implementation manners

[0029] To facilitate the understanding of the present application, the present application will be described more comprehensively below with reference to the relevant drawings. Embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs. The terms used in the specification of this application herein are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0031] It will be understood that the terms "first", "second", etc. used in the present application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish a first element from another element. For example, without departing from the scope of the present application, the first resistor may be referred to as the second resistor, and similarly, the second resistor may be referred to as the first resistor. Both the first resistor and the second resistor are resistors, but they are not the same resistor.

[0032] It will be understood that "connection" in the following embodiments, if there is transmission of electrical signals or data between the connected circuits, modules, units, etc., should be understood as "electrical connection", "communication connection", etc.

[0033] As used herein, the singular forms "a", "an" and "the" may also include the plural forms unless the context clearly dictates otherwise. It should also be understood that the terms "comprise / include" or "have" etc. specify the presence of the stated features, wholes, steps, operations, components, parts or combinations thereof, but do not preclude the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof. At the same time, the term "and / or" used in this specification includes any and all combinations of the related listed items.

[0034] As Figure 1 As shown, the present invention provides a switch control method, which is applied to a switch controller. The switch controller is connected to a switch device, and the switch device is connected to an electrical power consumption loop. The switch controller is used to control the electrical power consumption loop to be turned on or off through the switch device.

[0035] It should be noted that when an electrical power consumption fault occurs in the electrical power consumption loop, it indicates that there is a disconnection requirement for the switch device, and the switch device can be disconnected to achieve power-off protection for the electrical power consumption loop; in actual use, a preset signal threshold is used as the judgment benchmark for the disconnection requirement of the switch device. By collecting the electrical signal when the switch device controls the electrical power consumption loop to be turned on and comparing the electrical signal with the preset signal threshold, it is possible to determine whether there is a disconnection requirement for the switch device according to the comparison result. For example, when the electrical signal is greater than the preset signal threshold, it is determined that there is a disconnection requirement for the switch device.

[0036] Since the power consumption circuit is applied to an AC power grid, current and voltage fluctuations in the AC power grid are inevitable. Transient current and voltage fluctuations have little impact on the power consumption circuit and do not affect its normal operation. However, current and voltage fluctuations can cause electrical signal fluctuations in the switching device, making the electrical signal of the switching device greater than the preset signal threshold at the moment of electrical signal fluctuation, causing the switching device to mistakenly think that the power consumption circuit needs to be cut off for protection, and thus generating a disconnection demand for the switching device. The event of the switching device being accidentally closed due to current and voltage fluctuations can be called a malfunction event of the switching device.

[0037] The above method includes:

[0038] Step 102: When a preset first control condition is met, obtain the first harmonic of the switching device.

[0039] Among them, in step 102, the first control condition is used to indicate that the switching device is determined to have a disconnection demand; in actual applications, before step 102 is executed, a judgment step of the first control condition needs to be performed in advance. In this step, by monitoring the electrical signal when the switching device controls the power consumption circuit to conduct, it is possible to judge whether the switching device has a disconnection demand. If so, it is determined that the first control condition is met; in addition, it should also be noted that this first control condition judgment step can be performed in the switch controller or in other devices (such as the switching device) connected to the switch controller. The judgment result of other devices is output to the switch controller to instruct the switch controller to execute step 102.

[0040] The first harmonic is the harmonic corresponding to the electrical signal of the switching device when the first control condition is met. Specifically: collect the electrical signal of the switching device when the first control condition is met, and perform harmonic analysis processing on the collected electrical signal to obtain the harmonic.

[0041] Step 104: Judge whether a preset second control condition is met according to the first harmonic.

[0042] Among them, in step 104, the second control condition is used to indicate that the switching device does not have a malfunction event, that is, this step realizes judging whether the switching device has a malfunction event based on the first harmonic after the switching device has a disconnection demand and before the disconnection instruction is output. If not, it is determined that the second control condition is met.

[0043] Step 106: When the second control condition is met, output a disconnection control instruction.

[0044] Among them, in step 106, the disconnection control instruction is used to control the switching device to disconnect.

[0045] In the above method, after there is a disconnection requirement in the switching device and before the disconnection instruction is output, it is possible to determine whether the second control condition is satisfied according to the first harmonic, that is, to determine whether there is a malfunction event in the switching device based on the first harmonic. If not, it is determined that the second control condition is satisfied, and a disconnection control instruction is output, effectively avoiding the switching device being accidentally closed due to a malfunction event, thus ensuring the normal operation of the power consumption loop and greatly improving the reliability of the operation of the switching device.

[0046] In some embodiments, the step of determining whether the preset second control condition is satisfied according to the first harmonic characteristics includes:

[0047] When there is no malfunction harmonic in the first harmonic, it is determined that the second control condition is satisfied.

[0048] Among them, in this step, the malfunction harmonic refers to the harmonic corresponding to the electrical signal when there is a malfunction event in the switching device; specifically, this step is to compare the waveforms of the first harmonic with the previously collected malfunction harmonics. When there is a harmonic band in the first harmonic that matches the high-order harmonic waveform of the malfunction harmonic, it is considered that there is a malfunction harmonic in the first harmonic.

[0049] It should be noted that in order to more quickly identify the malfunction harmonics in the first harmonic, the previously collected malfunction harmonics can be used as training samples for the neural network algorithm to establish a malfunction discrimination model. Specifically, as Figure 2 shown, in some embodiments, the method further includes:

[0050] Step 202, performing deep learning on the malfunction harmonics using a preset neural network algorithm to establish a malfunction discrimination model; where the preset neural network algorithm includes but is not limited to one of the CNN neural network algorithm and the DNN neural network algorithm.

[0051] Step 204, using the preset malfunction discrimination model to determine whether there are malfunction harmonics in the first harmonic.

[0052] It should be noted that the timing of establishing the malfunction discrimination model is not limited. For example, in some embodiments, the malfunction discrimination model can be preset in the switch controller with a malfunction discrimination model corresponding to the switching device when the switching device leaves the factory; of course, in other embodiments, it is also possible to perform deep learning on the malfunction harmonics of the switching device collected during use through the CNN / DNN algorithm to obtain the malfunction discrimination model when the switching device is first used.

[0053] Preferably, in some embodiments, after the misoperation discrimination model is established, with the continuous use of the switching device, the misoperation discrimination model can be used to further learn the misoperation harmonics generated during subsequent use, so that the misoperation discrimination model learns more different waveforms of misoperation harmonics, thereby improving the misoperation discrimination model's ability to judge misoperation harmonics.

[0054] It is worth mentioning that the object on which the steps for establishing the misoperation discrimination model are executed is not limited. It can be executed on the switch controller of the switching device, or on the gateway device connected to the switching device, or on the cloud server.

[0055] For example, in some embodiments, the steps for establishing the misoperation discrimination model can be executed by the switching device itself. Specifically, a model establishment module is provided on one side of the switching device, and the misoperation discrimination model is established based on the misoperation harmonics through this model establishment module.

[0056] Of course, in some embodiments, the steps for establishing the misoperation discrimination model can be executed by a device or apparatus other than the switching device. Specifically, a model establishment module can be provided on one side of the gateway device or the cloud server. The misoperation harmonics collected by the switching device are uploaded to the gateway device or the cloud server, and then the misoperation discrimination model is established based on the misoperation harmonics received by the gateway device or the cloud server using the model establishment module. That is, in this embodiment, the switching device serves as the misoperation harmonic collection unit and the misoperation discrimination model receiving unit, and the switching device itself does not execute the steps for establishing the misoperation discrimination model. Specifically, as Figure 3 shown, in some embodiments, the method further includes:

[0057] Step 302, output the misoperation harmonics of the switching device to the model establishment module; wherein, the model establishment module is used to be connected to the switching device and is also used to perform deep learning on the misoperation harmonics using a preset neural network algorithm to establish a misoperation discrimination model.

[0058] Step 304, receive the misoperation discrimination model sent by the model establishment module.

[0059] Through the settings in the above steps 302-304, the phenomenon of low efficiency of neural network calculation caused by the limited computing power of the switching devices is avoided, and the calculation amount of each switching device is greatly reduced. Moreover, in the scenario where multiple switching devices are used together, there is no need for multiple switching devices to perform neural network calculations separately. The misoperation harmonics collected by multiple switching devices can be uploaded to the gateway device or cloud server, so that a misoperation discrimination model can be established through a single neural network calculation. After the model is established, the misoperation discrimination model is directly distributed to each switching device for use. Moreover, during the subsequent use of multiple switching devices, if any switching device generates new misoperation harmonics, after the gateway device or cloud server learns the new misoperation harmonics and updates the misoperation discrimination model, the updated misoperation discrimination model is distributed to all switching devices for use, enabling all switching devices to simultaneously master the ability to identify new misoperation harmonics, providing a basis for each switching device to quickly identify new misoperation harmonics, and making the operation of the switching devices more stable.

[0060] It is also worth mentioning that the establishment method of the misoperation discrimination model is not limited, including but not limited to the following establishment methods:

[0061] (1). Independent modeling

[0062] Independent modeling means that each switching device separately performs in-depth learning on the collected misoperation harmonics through a neural network algorithm to establish a misoperation discrimination model applicable to itself.

[0063] Specifically, even if the types of switching devices are the same, due to the differences in the electronic components, processing technologies, and power consumption environments selected by each switching device, the waveforms corresponding to the misoperation harmonics when each switching device generates misoperation events are also different. Therefore, in some embodiments, each switching device can be regarded as an independent individual, and each switching device separately learns and trains the waveform corresponding to the misoperation harmonics collected by itself through a neural learning algorithm to generate its own misoperation discrimination model, ensuring that the object learned in the misoperation discrimination model is the waveform of the misoperation harmonics actually generated by the switching device under the current application premise, so as to ensure the accuracy of the misoperation harmonics recognition by the switching device under the current application premise.

[0064] (2). Joint modeling

[0065] Joint modeling means that the misoperation harmonics collected from multiple switching devices are transmitted to the same side, and on this side, in-depth learning is performed on all the misoperation harmonics through a neural network algorithm to establish a misoperation discrimination model applicable to all switching devices.

[0066] In some embodiments, the method is used to control multiple switching devices; in the step of performing deep learning on misoperation harmonics using a preset neural network algorithm to establish a misoperation discrimination model, it includes:

[0067] Using the preset neural network algorithm to simultaneously perform deep learning on the misoperation harmonics obtained from multiple switching devices respectively to establish a misoperation discrimination model.

[0068] It is worth mentioning that in this step, if multiple switching devices are communicatively connected to each other, at least a part of the multiple switching devices are first switching devices, and the other part are second switching devices, wherein the first switching device is the side that executes the misoperation discrimination model, and the first switching device is provided with a model establishment module. The second switching device transmits the misoperation harmonics it collects to the first switching device, and the first switching device uses the model establishment module to establish a misoperation discrimination model based on the misoperation harmonics it collects itself and the misoperation harmonics received from the second switching device, and the first switching device transmits the misoperation discrimination model to each second switching device respectively.

[0069] In this step, if multiple switching devices are respectively communicatively connected to a gateway device or a cloud server, the misoperation harmonics collected by the multiple switching devices are all uploaded to the gateway device or the cloud server, and the model establishment module of the gateway device or the cloud server establishes a misoperation discrimination model based on the received misoperation harmonics.

[0070] In some embodiments, the method is used to control multiple switching devices, at least a part of the multiple switching devices are first switching devices, and the other part are second switching devices.

[0071] As Figure 4 shown, in the step of performing deep learning on misoperation harmonics using a preset neural network algorithm to establish a misoperation discrimination model, it includes:

[0072] Step 402, using the preset neural network algorithm to perform deep learning on the misoperation harmonics obtained from the first switching device to establish a misoperation discrimination model.

[0073] Wherein, in step 402, the first switching device can be the side that executes the misoperation discrimination model. At this time, the first switching device is provided with a model establishment module, and then this step 402 can be executed by the model establishment module of the first switching device.

[0074] The above method further includes:

[0075] Step 404, outputting the misoperation discrimination model to each second switching device.

[0076] Among them, in step 404, if the first switching device is communicatively connected to multiple second switching devices respectively, the misoperation discrimination model can be directly transmitted to each second switching device; if the first switching device and each second switching device are communicatively connected to a gateway device or a cloud server respectively, the first switching device can upload the misoperation discrimination model to the gateway device or the cloud server, and then the gateway device or the cloud server will distribute the misoperation discrimination model to each second switching device.

[0077] In some embodiments, the method further includes: judging whether a first control condition is satisfied according to the comparison result between the electrical signal of the switching device and a preset signal threshold.

[0078] Among them, before the threshold comparison, the electrical signal of the switching device is subjected to power amplification processing to obtain a characteristic electrical signal, and the characteristic electrical signal is used as the basis for whether to perform power-off protection, that is, the characteristic electrical signal and the preset signal threshold are compared to judge whether the first control condition is satisfied. For example, in some embodiments, if the preset signal threshold is the current protection threshold, the electrical signal collected by the switching device is a current signal, and after the current signal is subjected to power amplification processing, a characteristic current signal is obtained. When the characteristic current signal is greater than the current protection threshold, in order to avoid serious power consumption faults caused by the overcurrent phenomenon of the switching device, the switching device generates a power-off demand, and it is determined that the switching device satisfies the first control condition.

[0079] As Figure 5 shown, the present invention also provides a switch controller 500, which is used to be connected to a switching device 100 to control the conduction or disconnection of the switching device 100; the switch controller includes a signal processing module 510, a misoperation discrimination module 520, and a switch driving module 530 that are connected in sequence, where:

[0080] The signal processing module 510 is configured to obtain the first harmonic of the switching device 100 when a preset first control condition is satisfied; wherein, the first control condition is used to indicate that the switching device 100 is determined to have a disconnection demand, and the first harmonic is the harmonic corresponding to the electrical signal of the switching device 100 when the first control condition is satisfied;

[0081] The misoperation discrimination module 520 is configured to judge whether a preset second control condition is satisfied according to the first harmonic; wherein, the second control condition is used to indicate that the switching device 100 does not have a misoperation event. When the second control condition is satisfied, the misoperation discrimination module 520 sends a first judgment signal indicating that the switching device 100 satisfies the second control condition to the switch driving module 530; specifically,

[0082] A switch driving module 530, which has an on / off control function and is used to output a disconnection control instruction when the second control condition is satisfied. Specifically, the disconnection control instruction is used to control the switch device 100 to disconnect. That is, the switch driving module 530 generates a disconnection control instruction (i.e., a level signal) under the drive of the first judgment signal and outputs the disconnection control instruction to the switch device 100 to achieve the purpose of driving the switch device 100 to disconnect.

[0083] In some embodiments, a misoperation discrimination module 520 is used to determine that the second control condition is satisfied when there is no misoperation harmonic in the first harmonic. The misoperation harmonic refers to the harmonic corresponding to the electrical signal when a misoperation event occurs in the switch device 100.

[0084] In some embodiments, the switch controller further includes a model establishment module, where:

[0085] The model establishment module is used to receive the misoperation harmonic and perform deep learning on the misoperation harmonic by using a preset neural network algorithm to establish a misoperation discrimination model.

[0086] The misoperation discrimination module 520 is used to use a preset misoperation discrimination model to discriminate whether there is a misoperation harmonic in the first harmonic.

[0087] In some embodiments, the model establishment module is used to perform deep learning on the misoperation harmonics respectively obtained from multiple switch devices 100 at the same time by using a preset neural network algorithm to establish a misoperation discrimination model.

[0088] In some embodiments, the switch device 100 includes a first switch device 100 and a second switch device 100. The switch controller further includes a communication module.

[0089] The model establishment module is used to perform deep learning on the misoperation harmonic obtained from the first switch device 100 by using a preset neural network algorithm to establish a misoperation discrimination model.

[0090] The communication module is connected to the model establishment module and is used to output the misoperation discrimination model to each second switch device 100.

[0091] In some embodiments, the switch controller further includes a communication module. In practical applications, the communication module can be used to communicatively connect the switch controller with an external gateway device or a cloud server. The gateway device or the cloud server is provided with a model establishment module, and the model establishment module is used to perform deep learning on the misoperation harmonic by using a preset neural network algorithm to establish a misoperation discrimination model.

[0092] A communication module, configured to output the harmonic waves of the malfunction of the switching device 100 to the model establishment module; and further configured to receive the malfunction discrimination model sent by the model establishment module.

[0093] In some embodiments (not shown), the switch controller further includes an acquisition and comparison circuit. The acquisition and comparison circuit 20 is connected to the signal processing module 510 and is configured to determine whether the first control condition is satisfied according to the comparison result between the electrical signal of the switching device 100 and a preset signal threshold. Specifically:

[0094] The acquisition and comparison circuit has a signal acquisition function and a threshold judgment function.

[0095] When implementing the signal acquisition function, the acquisition and comparison circuit is configured to obtain the electrical signal of the switching device 100.

[0096] When implementing the threshold judgment function, the acquisition and comparison circuit is configured to perform power amplification processing on the electrical signal of the switching device 100 to obtain a characteristic electrical signal, and use the characteristic electrical signal as the basis for whether to perform power-off protection, that is, compare the characteristic electrical signal with the preset signal threshold, and determine whether the first control condition is satisfied according to the comparison result. When the first control condition is satisfied, a second judgment signal is generated and input to the signal processing module 510. For example, if the preset signal threshold is set as the threshold for the switching device 100 to perform power-off protection, then in actual use, when the acquisition and comparison circuit determines that the characteristic electrical signal is greater than the preset signal threshold range, a second judgment signal for indicating that the first control condition is satisfied is input to the signal processing module 510, and the second judgment signal drives the signal processing module 510 to obtain the first harmonic wave of the switching device 100.

[0097] As Figure 6 shown, the present invention further provides a switching device 100, which includes a switch protection module and the above-mentioned switch controller. The switch protection module is connected to the switch driving module 530. In actual application, the switch protection module is connected to the power consumption circuit.

[0098] Specifically, the switch protection module includes a first switch tube M1 and a second switch tube M2. The control electrodes of the first switch tube M1 and the second switch tube M2 are connected in parallel to the switch driving module for receiving the level signal sent by the switch driving module 530; the first electrodes of the first switch tube M1 and the second switch tube M2 are connected in series with each other. The second electrode of the first switch tube M1 is used to connect to the input end of the power consumption circuit, and the second electrode of the second switch tube M2 is connected to the output end of the power consumption circuit.

[0099] It is worth mentioning that the first and second switching tubes include, but are not limited to, field effect transistors (i.e., MOS tubes, abbreviated as MOSFET in English). The sources (i.e., the first poles) of two field effect transistors (i.e., M1 and M2) are connected in series with each other. The gates (i.e., the control poles) of the two field effect transistors are connected in parallel to the switch driving module 530. When the switching device 100 is applied to the power consumption circuit 40, the drain (i.e., the second pole) of one field effect transistor M1 is connected to the input terminal IN of the power consumption circuit 40, and the drain (i.e., the second pole) of the other field effect transistor M2 is connected to the output terminal OUT of the power consumption circuit 40. Of course, in other embodiments, it is also feasible that the switching tube is a switching transistor with other structural forms, which will not be elaborated here one by one.

[0100] Wherein:

[0101] The switch protection module 10 is used to control the disconnection of the switching device 100 from the power consumption circuit under the drive of a disconnection control instruction. Specifically, the switch protection module 10 receives the disconnection control instruction through the control pole of the first switching tube M1 and the control pole of the second switching tube M2. Under the drive of the disconnection control instruction, the first switching tube M1 and the second switching tube M2 are made non-conductive, so that the switching device 100 is disconnected from the power consumption circuit.

[0102] In the above-mentioned switching device 100, the switch protection module 10 is composed of two interconnected switching tubes. The switch driver sends a level signal to the first and second switching tubes under the drive of the disconnection control instruction to control the disconnection of the switch protection module 10. Since the switching tubes have a fast response speed to the level signal, the switch protection module 10 can be turned on or off at high speed, providing conditions for the switching device 100 to achieve the function of high-speed on-off. In some embodiments, the single disconnection time or conduction time of the switching device 100 of the present invention reaches 6 microseconds, effectively improving the response speed to the disconnection control instruction and the protection reliability of the power consumption circuit 40.

[0103] Further, in some embodiments, if the switching controller does not have an acquisition and comparison circuit, the switching device 100 further includes an acquisition and comparison circuit 20. Specifically, the acquisition and comparison circuit 20 is respectively connected to the signal processing module 510 and the second pole of the second switching tube M2. In actual application, when the switching device 100 is applied to the power consumption circuit 40, the acquisition and comparison circuit 20 is used to connect the second pole of the second switching tube M2 to the output terminal OUT of the power consumption circuit 40.

[0104] It should be noted that the working principle (i.e., the signal acquisition function and the threshold judgment function) of the acquisition and comparison circuit provided in the switching device 100 is the same as that of the acquisition and comparison circuit provided in the switching controller, and will not be elaborated here.

[0105] Such asFigure 7 As shown, in some embodiments, the acquisition and comparison circuit 20 includes an acquisition module 21 and a judgment and comparison module 22. The acquisition module 21 is respectively connected to the second pole of the second switching transistor M2 and the judgment and comparison module 22. The judgment and comparison module 22 is further connected to the signal processing module 510. When the switching device 100 is applied to the power consumption circuit 40, the acquisition module 21 is used to communicate with the output terminal OUT of the power consumption circuit 40, where:

[0106] The acquisition module 21 is configured to acquire the electrical signal of the switching device 100, perform signal preprocessing to generate a characteristic electrical signal, and input the characteristic electrical signal to the judgment and comparison module 22. Additionally, it is also used to transmit the electrical signal of the switching device 100 to the signal processing module 510.

[0107] Specifically, the electrical signal of the switching device 100 includes a current signal and / or a voltage signal. It is worth mentioning that the current signal includes, but is not limited to, the operating current signal of the switching device 100 (which refers to the current signal that provides electrical energy when the switching device 100 is operating) and the residual current signal of the switching device 100 (which refers to the current signal where the vector sum of the currents in each phase of the switching device 100 is not zero, commonly known as the leakage current signal).

[0108] The judgment and comparison module 22 is configured to compare and judge the characteristic electrical signal with a preset signal threshold and generate a second judgment signal, and input the second judgment signal to the signal processing module 510.

[0109] Specifically, in some embodiments, the preset signal threshold is set to the critical value at which the switching device 100 generates a power-off protection requirement. When the characteristic electrical signal exceeds the preset signal threshold, it indicates that the switching device 100 generates a power-off protection requirement. At this time, the judgment and comparison module 22 outputs a second judgment signal for characterizing that the switching device 100 has a power-off requirement. The type of the preset signal threshold is correspondingly set according to the type of the electrical signal, that is, the preset signal threshold includes, but is not limited to, a preset operating current threshold corresponding to the operating current signal, a preset residual current threshold corresponding to the residual current signal, and a preset voltage threshold corresponding to the voltage signal.

[0110] As Figure 7-8 shown, further, in one of the embodiments, the acquisition module 21 includes a signal acquisition unit 211 and a signal amplification unit 212. The signal acquisition unit 211 is respectively connected to the switch protection module 10 and the signal amplification unit 212. The signal amplification unit 212 is further connected to the judgment and comparison module 22. When the switching device 100 is applied to the power consumption circuit 40, the signal acquisition unit 211 is used to communicate with the output terminal OUT of the power consumption circuit 40, where:

[0111] The signal acquisition unit 211 is configured to acquire the electrical signal of the switching device 100 and input it to the signal amplification unit 212.

[0112] A signal amplification unit 212, configured to preprocess the electrical signal of the switching device 100 to obtain a characteristic electrical signal, and input the characteristic electrical signal into the judgment and comparison module 22.

[0113] It should be noted that the specific structural form of the above signal acquisition unit 211 is not limited. The signal acquisition unit 211 includes, but is not limited to, at least one of a current acquisition unit for acquiring the operating current signal of the switching device 100, a current transformer for acquiring the residual current signal of the switching device 100, and a voltage acquisition unit for acquiring the voltage signal of the switching device 100. The signal acquisition unit 211 can be specifically set according to the actual design requirements, and the signal amplification unit 212 is determined according to the specific setting of the signal acquisition unit 211.

[0114] For example, as Figure 9 shown, in some embodiments, the signal acquisition unit 211 is a voltage acquisition unit. Specifically, the signal acquisition unit 211 includes a voltage acquisition resistor R1, and the signal amplification unit 212 includes an operational amplifier 212a.

[0115] One end of the voltage acquisition resistor R1 is connected in parallel with the first input terminal (i.e., the non-inverting input terminal) of the operational amplifier 212a and is connected to the second pole of the switching transistor M2. The output terminal of the operational amplifier 212a is connected to the judgment and comparison module 22. When the switching device 100 is applied to the power consumption circuit 40, the other end of the voltage acquisition resistor R1 and the second input terminal (i.e., the inverting input terminal) of the operational amplifier 212a are used to be connected in parallel to the output terminal OUT of the power consumption circuit 40, where:

[0116] The voltage acquisition resistor R1 is configured to acquire the voltage signal V of the power consumption circuit 40;

[0117] The operational amplifier 212a is configured to amplify the voltage signal V to obtain a first characteristic electrical signal V r and input the first characteristic electrical signal V r into the judgment and comparison module 22 through the output terminal;

[0118] The judgment and comparison module 22 is configured to compare and judge the first characteristic electrical signal V r with a preset voltage threshold V ref and generate a second judgment signal. For example, when the first characteristic electrical signal V r exceeds the preset voltage threshold V ref (i.e., V r > V ref ), a second judgment signal is generated and input into the switch driving module 530, so that the switch driving module 530 generates a disconnection control instruction.

[0119] As shown Figure 10 In some embodiments, as shown, the comparison module 22 includes a comparator 221 and a comparison control unit 222. The first input terminal (i.e., the non-inverting input terminal) of the comparator 221 is connected to the acquisition module 21 (specifically, the output terminal of the operational amplifier), the second input terminal (i.e., the inverting input terminal) of the comparator 221 is connected to the comparison control unit 222, and the output terminal of the comparator 221 is connected to the signal processing module 510. Among them:

[0120] The comparison control unit 222 is configured to input a preset signal threshold to the second input terminal of the comparator 221 and control the comparator 221 to perform comparison and judgment. Specifically, the structural form of the comparison control unit 222 is not limited. For example, in one embodiment, the comparison control unit 222 is an MCU (full name: Micro Controller Unit) chip. During actual use, the user can pre-store the preset signal threshold in the MCU chip, can also adjust and set the preset signal threshold through the MCU chip, and can also adjust the comparison and judgment rules of the comparator 221 through the MCU chip.

[0121] The comparator 221 is configured to receive the characteristic electrical signal from the output terminal of the operational amplifier through the first input terminal, receive the preset signal threshold from the comparison control unit 222 through the second input terminal, perform comparison and judgment on the characteristic electrical signal and the preset signal threshold, and input through the output terminal to the signal processing module 510 according to the comparison and judgment result. Specifically, when the characteristic electrical signal exceeds the preset signal threshold, the comparator 221 inputs a second judgment signal to the signal processing module 510 through the output terminal.

[0122] A switch control system includes a memory and a processor. The memory stores a computer program, and when the processor executes the computer program, the steps of the above-mentioned switch control method are implemented.

[0123] A computer-readable storage medium stores a computer program thereon, and when the computer program is executed by a processor, the steps of the above-mentioned switch control method are implemented.

[0124] In the description of this specification, the descriptions with reference to terms such as "some embodiments", "other embodiments", "ideal embodiments", etc. mean that the specific features, structures, materials or features described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.

[0125] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0126] The above-described embodiments only express several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. A switch control method, characterized in that, The method includes: Deep learning is performed on the misoperation harmonics using a preset neural network algorithm to establish the misoperation discrimination model; wherein, the misoperation harmonics refer to the harmonics corresponding to the electrical signals when there is a misoperation event in the switching device. When a preset first control condition is satisfied, the first harmonics of the switching device are obtained; wherein, the first control condition is used to indicate that the switching device is determined to have a disconnection requirement, and the first harmonics are the harmonics corresponding to the electrical signals of the switching device when the first control condition is satisfied; according to the first harmonics, it is judged whether a preset second control condition is satisfied; wherein, the second control condition is used to indicate that there is no misoperation event in the switching device, and the switching device is used to control the conduction or disconnection of the power consumption circuit; the misoperation discrimination model is used to discriminate whether there are misoperation harmonics in the first harmonics. When there are no misoperation harmonics in the first harmonics, it is determined that the second control condition is satisfied. When the second control condition is satisfied, a disconnection control instruction is output; wherein, the disconnection control instruction is used to control the switching device to disconnect. Wherein, the method is used to control multiple switching devices, at least a part of the multiple switching devices are first switching devices, and the other part are second switching devices. In the step of performing deep learning on the misoperation harmonics using a preset neural network algorithm to establish the misoperation discrimination model, it includes: Deep learning is performed on the misoperation harmonics obtained from the first switching device using a preset neural network algorithm to establish the misoperation discrimination model. The method further includes: Outputting the misoperation discrimination model to each of the second switching devices. If new misoperation harmonics are generated in any first or second switching device, deep learning is performed on the new misoperation harmonics using a preset neural network algorithm, and the misoperation discrimination model is updated, and the updated misoperation discrimination model is sent to all the switching devices for use.

2. The switch control method according to claim 1, wherein The method is used to control multiple switching devices. In performing deep learning on the misoperation harmonics using a preset neural network algorithm to establish the misoperation discrimination model, it includes: Deep learning is simultaneously performed on the misoperation harmonics obtained from multiple switching devices respectively using a preset neural network algorithm to establish the misoperation discrimination model.

3. The switch control method according to claim 1, wherein The method further includes: Outputting the misoperation harmonics of the switching device to an external model establishment module; wherein, the model establishment module is used to establish the misoperation discrimination model according to performing deep learning on the misoperation harmonics using a preset neural network algorithm. Receiving the misoperation discrimination model sent by the model establishment module.

4. The switch control method according to claim 1, wherein The method further includes: Judging whether the first control condition is satisfied according to the comparison result between the electrical signal of the switching device and a preset signal threshold.

5. A switch controller, characterized in that, The switch controller is used to be connected to a plurality of switch devices respectively, and control the conduction or disconnection of the switch devices. At least a part of the plurality of switch devices are first switch devices, and the other part are second switch devices; the switch controller includes a signal processing module, a malfunction discrimination module, a switch driving module and a model establishment module connected in sequence, wherein: The model establishment module is used to perform deep learning on the malfunction harmonics obtained from the first switch devices by using a preset neural network algorithm to establish the malfunction discrimination model, and output the malfunction discrimination model to each of the second switch devices. If any first or second switch device generates new malfunction harmonics, deep learning is performed on the new malfunction harmonics by using the preset neural network algorithm, and the malfunction discrimination model is updated, and the updated malfunction discrimination model is sent to all switch devices for use; wherein, the malfunction harmonics refer to the harmonics corresponding to the electrical signals when the switch device has a malfunction event; The signal processing module is used to obtain the first harmonic of the switch device when a preset first control condition is satisfied; wherein, the first control condition is used to represent that the switch device is determined to have a disconnection requirement, and the first harmonic is the harmonic corresponding to the electrical signal of the switch device when the first control condition is satisfied; The malfunction discrimination module is used to judge whether a preset second control condition is satisfied according to the first harmonic, and use the preset malfunction discrimination model to discriminate whether there are malfunction harmonics in the first harmonic. When there are no malfunction harmonics in the first harmonic, it is determined that the second control condition is satisfied; wherein, the second control condition is used to represent that the switch device has no malfunction event, and the switch device is used to control the conduction or disconnection of the power consumption circuit; and, The switch driving module is used to output a disconnection control instruction when the second control condition is satisfied; wherein, the disconnection control instruction is used to control the switch device to disconnect.

6. A switching device, characterized in that, The switch device includes a switch protection module and the switch controller according to claim 5 above; the switch protection module includes a first switch tube and a second switch tube. The control electrodes of the first switch tube and the second switch tube are connected in parallel to the switch driving module. The first electrodes of the first switch tube and the second switch tube are connected in series with each other. The second electrode of the first switch tube is used to be connected to the input end of the power consumption circuit, and the second electrode of the second switch tube is connected to the output end of the power consumption circuit; wherein: The switch protection module is used to control the disconnection of the switch device from the power consumption circuit under the drive of the disconnection control instruction.

7. A computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the switch control method according to any one of claims 1 to 4 are implemented.

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