Dual-power-supply rapid switching device based on wavelet algorithm

Abstract

The invention discloses a dual-power-supply rapid switching device based on a wavelet algorithm, and relates to the technical field of circuit control, and the dual-power-supply rapid switching device comprises a housing, the top of the housing is provided with a plurality of installation heads used for fixing power supply ends of power supplies, one side of each installation head is provided with a conductive head, and the power supply ends are installed in the installation heads to enable the conductive heads to conduct electricity; the binding post is movably arranged in the shell; and the wavelet analysis system is used for carrying out multi-scale refinement on the signal step by step through sampling, wavelet basis construction and wavelet transformation telescopic translation operation, extracting power-off characteristics and determining a power supply state according to the power-off characteristics. The distance between the binding post and the dual power supply and the connection state are adjusted through the voltage change state, the position of the binding post is dynamically changed, and the on-off path of the binding post and the dual power supply is optimized, so that the time consumed in the dual power supply switching process is shortened, the stability in the dual power supply switching process is ensured, and the switching efficiency of the dual power supply is improved. And operation interruption or equipment impact damage caused by power supply switching can be avoided.

Description

Technical Field

[0001] The invention relates to the technical field of circuit control, in particular to a dual power supply fast switching device based on wavelet algorithm. Background Art

[0002] Continuous production enterprises such as petrochemical and chemical industries have very high requirements for power continuity. When the continuous production process suffers from power system failures such as power fluctuations and power outages, the control system and motor load will be shut down or restarted, which will cause huge economic losses or safety impacts to the enterprise. Therefore, it is very necessary to ensure the continuous and safe operation of the load when a power failure occurs, which also has extremely high application value.

[0003] At present, the conventional solutions for solving power continuity mainly include factory power switching, equipment self-starting and other types of solutions. These conventional solutions can be used to solve non-continuous production processes, but for continuous production processes such as petrochemicals and chemicals, the above solutions cannot solve the problem well. This is mainly because the switching action time of conventional solutions is too long, which leads to a long power outage time during the switching process, making it unable to meet the process requirements of continuous production processes.

[0004] The task of quick switching is to switch the load to the backup line as quickly as possible according to the system status when the power supply line is cut off, so as to avoid operation interruption or equipment impact damage during power switching, so as to ensure uninterrupted and continuous operation of electrical equipment.

[0005] Announcement No. CN111354585A discloses a dual power switching device, including a driving turntable, wing support bodies installed on both sides of the driving turntable, and wiring terminals located between the wing support bodies on both sides, moving contacts are installed on opposite surfaces of the wing support bodies on both sides, and static contacts are installed on both sides of the wiring terminals. Moving conductors connecting common wiring posts and moving contacts are installed in the driving turntable and the wing support bodies, a U-shaped conductor is installed in the driving turntable, and a separation auxiliary mechanism is installed on the driving turntable. On the side where the electromagnetic shielding component is not installed, the moving conductor and the U-shaped conductor generate mutually attractive electric force due to the same current direction, thereby preventing the moving contact from being bounced off when it contacts the static contact. When switching the power, the common wiring post is disconnected from the connected side of the circuit through the separation auxiliary mechanism, so that the corresponding moving conductor and the U-shaped conductor lose the attractive electric force, thereby avoiding the disadvantage of slow switching of the two power supplies.

[0006] When the dual power supply fast switching device switches the power supply, the separation mechanism is used to control the terminal to separate from one of the power supplies, and then the terminal is controlled to connect to the other power supply to achieve switching between the dual power supplies. However, since the movement path of the separation mechanism is fixed, the time for separating and then connecting the terminal is limited, resulting in slow switching of the dual power supplies and inability to achieve rapid switching. Summary of the invention

[0007] One of the purposes of the present invention is to provide a dual power supply fast switching device based on wavelet algorithm, based on the combination of wavelet algorithm and switching device, control the terminal to quickly realize the switching between dual power supplies, and ensure the switching speed between dual power supplies.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: a dual power supply fast switching device based on wavelet algorithm, comprising:

[0009] The shell has a plurality of mounting holes for fixed installation on its back, a plurality of mounting heads for fixing the power supply end are arranged on the top of the shell, screws are arranged inside the mounting heads for fixing the power supply end, a conductive head is arranged on one side of the mounting head, and the power supply end is installed inside the mounting head to make the conductive head conductive;

[0010] A terminal is movably arranged inside the housing, and a fixing head is arranged on one side of the terminal to fix one end of the power supply line extending into the terminal, so as to limit the position of the terminal and the power supply line. When the terminal contacts the conductive head, the power supply line is connected to the power source for conduction;

[0011] The wavelet analysis system gradually refines the signal at multiple scales through sampling, wavelet basis construction, wavelet transform scaling and translation operations, extracts power failure features, and determines the power supply status based on the power failure features;

[0012] A motion mechanism is arranged inside the housing and controls the contact and separation between the terminal and the conductive head. The motion mechanism changes the position of the terminal according to the analysis of the power supply state by the wavelet analysis system. The distance between the terminal and the backup power supply conductive head is determined by the power supply state.

[0013] The posture adjustment component is arranged inside the shell and is used to adjust the posture of the terminal, change the contact area and angle between the terminal and the conductive head, and the posture adjustment component includes a blocking plate for blocking the terminal and the conductive head from being energized and controlling the position of the blocking plate.

[0014] In one or more embodiments of the present invention, the side of one end of the terminal that contacts the conductive head is set as a polygonal structure, and the polygonal structures correspond to different adjustment angles of the posture adjustment component. An elastic member is set between the terminal and the fixed head to form a support for the terminal. When the posture adjustment component changes the angle of the terminal, the elastic member supports the change in the contact force between the terminal and the conductive head. The terminal is a combined structure, and the terminal installed at one end of the fixed head can swing, and the other end can be retracted.

[0015] In one or more embodiments of the present invention, the posture adjustment component includes:

[0016] The electromagnetic frame is composed of an electromagnet and a mounting frame for mounting a blocking plate. A magnetic plate is arranged on one side of the electromagnetic frame, and the magnetic plate is fixed inside the shell. The electromagnet and the magnetic plate interact with each other to control the mounting frame to slide inside the shell. The movement path of the blocking plate is located between the terminal and the conductive head.

[0017] The conductive area is located in the blocking plate, and the conductive area is composed of a plurality of conductive plates with different conductivity coefficients.

[0018] In one or more embodiments of the present invention, the posture adjustment component further includes:

[0019] A slideway is provided inside the housing, the extension direction of the slideway is consistent with the movement direction of the terminal, a slide frame is provided inside the slideway, and the slide frame can be slidably provided inside the slideway and cannot be separated from the slideway;

[0020] A chuck is swingably arranged at one end of the slide toward the terminal, one end of the chuck clamps the connecting terminal and moves with the terminal, and the other end of the chuck extends into the interior of the slide and can swing relative to the slide;

[0021] The driving rod is arranged inside the slide, and driving members are arranged at both ends of the driving rod to change the position of the driving rod. The driving rod is meshed and transmitted with one end of the clamp extending into the slide.

[0022] In one or more embodiments of the present invention, the motion mechanism comprises:

[0023] A slide plate is slidably arranged inside the housing, and a fixed head is installed inside the slide plate, and sliding movement drives the fixed head to move;

[0024] A pressure chamber is arranged at one end of the slide plate away from the fixed head. The pressure chamber is elastically arranged and filled with a medium. The slide plate is driven to move by the change of the medium pressure in the pressure chamber.

[0025] In one or more embodiments of the present invention, a pulling rod is provided at one side of the pressure chamber, a pressure plate is provided at one end of the pulling rod close to the pressure chamber, and the pulling rod changes the position of the pressure plate to control the pressure change inside the pressure chamber;

[0026] The slide plate is split, and the three sections of the slide plate can slide independently, wherein the pulling rod and the pressure chamber are respectively installed on the outside of two sections of the slide plate and push the other section of the slide plate to slide through the pressure chamber.

[0027] In one embodiment, the motion mechanism further comprises:

[0028] The electromagnetic strips are installed between the slide plate and the shell, and the electromagnetic strips are installed on the slide plate and the surface of the shell. When the electromagnetic strips are energized, the sliding position of the slide plate is determined by the change of the magnetic force of the electromagnetic strips.

[0029] The electromagnetic strips are arranged to be inclined, and the inclination angles of the electromagnetic strips are consistent.

[0030] In one or more embodiments of the present invention, a swingable positioning bar is arranged between the electromagnetic bar installed on the inner side of the skateboard and the skateboard. The positioning bar is swingably arranged on the inner side of the skateboard, and the change of the magnetic force of the electromagnetic bar changes the swing angle of the positioning bar.

[0031] In one or more embodiments of the present invention, the wavelet analysis system analysis method is as follows:

[0032] Signal acquisition: Real-time acquisition of voltage signals of the main power supply and backup power supply as input data for wavelet transform;

[0033] Wavelet transform: Perform wavelet transform on the collected voltage signal, decompose the signal into different frequency components, and analyze the time characteristics of each component;

[0034] Feature extraction: Through wavelet transform, the features in the voltage signal, such as the modulus maximum point, are extracted. The feature point corresponds to the mutation point of the signal and is used to detect voltage drops or anomalies.

[0035] Status judgment: Based on the extracted feature points, determine whether the power supply voltage is abnormal. If the main power supply voltage is abnormal, a switching command is issued to switch the power supply line to the backup power supply.

[0036] Switching execution: After receiving the switching command, the switching device controls the terminal through the motion mechanism to disconnect the main power supply and connect the backup power supply to complete the power switching process.

[0037] In one or more embodiments of the present invention, it is determined whether the power supply voltage is abnormal based on the extracted feature points. The specific method includes:

[0038] Threshold judgment: Set a threshold for voltage change. When the voltage change exceeds the threshold, it is considered abnormal and the power supply needs to be switched.

[0039] Pattern recognition: Use machine learning algorithms to classify the extracted features and determine whether the voltage status is abnormal;

[0040] According to the voltage change state, the distance between the terminal and the conductive head is adjusted through the motion mechanism.

[0041] Through the above technical solution, the present invention has the following beneficial effects:

[0042] 1. This application adjusts the distance and connection status between the terminal and the dual power supply through the voltage change state, dynamically changes the position of the terminal, and optimizes the on-off path of the terminal and the dual power supply, so as to reduce the time consumed in the dual power supply switching process, ensure the stability of the dual power supply switching process, avoid operation interruption or equipment impact damage during power switching, so as to ensure uninterrupted and continuous operation of electrical equipment.

[0043] 2. Through sampling, wavelet basis construction, wavelet transform scaling and translation operations, the signal is gradually refined at multiple scales, which can fully highlight the mutation characteristics, extract the power-off characteristics, quickly identify the status of the power supply line, and control the position of the terminal to change according to the status of the power supply line, so as to realize the rapid switching of dual power supplies and change the movement path of the terminal based on the status of the power supply line.

[0044] 3. The position of the terminal is controlled by the motion mechanism to realize the on-off connection between the terminal and the dual power supply. The number of the terminal matches the number of power supplies. When in use, the two terminal posts correspond to the two power supplies respectively, and the two terminal posts are connected to the power supply line. When one of the terminal posts is connected to the corresponding power supply, the power supply line can be powered.

[0045] 4. In the process of using the motion mechanism to move the terminal, the state of the terminal is adjusted through the posture adjustment component. In the process of separation adjustment, the connection between the terminal and the power supply can be quickly achieved, and the isolation plate is used to disconnect the terminal and the power supply to avoid involvement between the terminal and the power supply during the separation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 A perspective view of the present invention;

[0047] Figure 2 This is a schematic diagram of the structure of the present invention with part of the shell removed;

[0048] Figure 3 It is a schematic diagram of the local structure of the present invention;

[0049] Figure 4 It is a schematic diagram of the structure of the baffle plate of the present invention;

[0050] Figure 5 It is a rear view of a part of the housing structure of the present invention;

[0051] Figure 6 This is a schematic diagram of the structure of the present invention with the shell removed;

[0052] Figure 7 It is a schematic diagram of the motion mechanism and posture adjustment assembly of the present invention;

[0053] Figure 8 It is a rear view of the motion mechanism and posture adjustment assembly of the present invention;

[0054] Fig. 9 It is a schematic diagram of the structure of the fixed head of the present invention;

[0055] Fig.10 It is a partial schematic diagram of the fixed head structure of the present invention;

[0056] Fig.11 A rear view of the skateboard of the present invention;

[0057] Fig.12 It is a structural plan view of one side of the skateboard of the present invention.

[0058] In the figure: 1 housing, 2 mounting hole, 3 mounting head, 4 conductive head, 5 fixed head, 6 terminal, 7 wavelet analysis system, 8 motion mechanism, 9 posture adjustment component, 10 elastic member;

[0059] 81 slide plate, 82 pressure chamber, 83 pulling rod, 84 pressing plate, 85 electromagnetic strip, 86 positioning strip;

[0060] 91 blocking plate, 92 mounting frame, 93 electromagnet, 94 magnetic plate, 95 conductive area, 96 slideway, 97 slide frame, 98 chuck, 99 driving rod, 910 driving member. DETAILED DESCRIPTION

[0061] The following will disclose multiple embodiments of the present invention with the accompanying drawings. For the purpose of clear description, many practical details will be described together in the following description. However, it should be understood that these practical details should not be used to limit the present invention. In other words, in some embodiments of the present invention, these practical details are not necessary. And if it is possible to implement, the features of different embodiments can be applied interchangeably.

[0062] Unless otherwise defined, all words (including technical and scientific terms) used herein have their usual meanings, which can be understood by those familiar with this field. Furthermore, the definitions of the above words in commonly used dictionaries should be interpreted as the meanings consistent with the relevant fields of the present invention in the content of this specification. Unless otherwise clearly defined, these words will not be interpreted as idealized or overly formal meanings.

[0063] See also Figure 1-Figure 12 The present invention provides a dual power supply fast switching device based on wavelet algorithm, which switches the power supply of the power supply line to ensure the power consumption stability of the equipment and loads in the power supply line.

[0064] In one embodiment, the switching device comprises:

[0065] The housing 1 has a plurality of mounting holes 2 for fixed installation on its back, a plurality of mounting heads 3 for fixing the power supply end are arranged on the top of the housing 1, screws are arranged inside the mounting heads 3 for fixing the power supply end, a conductive head 4 is arranged on one side of the mounting heads 3, and the power supply end is installed inside the mounting heads 3 to make the conductive head 4 conductive;

[0066] The terminal 6 is movably arranged inside the housing 1. A fixing head 5 is arranged on one side of the terminal 6 to fix one end of the power supply line extending to the inside of the terminal 6, so as to limit the position of the terminal 6 and the power supply line. When the terminal 6 contacts the conductive head 4, the power supply line is connected to the power supply for conduction;

[0067] Wavelet analysis system 7, which gradually refines the signal at multiple scales through sampling, wavelet basis construction, wavelet transform scaling and translation operations, extracts power failure features, and determines the power supply status based on the power failure features;

[0068] The motion mechanism 8 is arranged inside the housing 1 and controls the contact and separation between the terminal 6 and the conductive head 4. The motion mechanism 8 changes the position of the terminal 6 according to the analysis of the power supply state by the wavelet analysis system 7. The distance between the terminal 6 and the backup power supply conductive head 4 is determined by the power supply state.

[0069] The posture adjustment component 9 is arranged inside the shell 1 and is used to adjust the posture of the terminal 6, change the contact area and angle between the terminal 6 and the conductive head 4, and the posture adjustment component 9 includes a blocking plate 91 for blocking the terminal 6 and the conductive head 4 from being energized and controlling the position of the blocking plate 91.

[0070] In this embodiment, the position of the terminal 6 is changed by setting a moving mechanism 8, and the gap between the terminal 6 and the conductive head 4 is adjusted, thereby changing the initial distance between the terminal 6 and the conductive head 4 before contact. By adjusting the posture of the terminal 6, the axis of the terminal 6 and the conductive head 4 can be made to be inclined at an angle, thereby changing the contact area between the terminal 6 and the conductive head 4.

[0071] One end of the terminal 6 is set to a polygon. During use, the angle of the terminal 6 is changed according to the posture adjustment component 9, so that the contact area between the terminal 6 and one end face of the conductive head 4 can be adjusted. According to the change in the angle of the terminal 6, the contact force between the terminal 6 and the conductive head 4 changes, so that the blocking plate 91 can be inserted between the terminal 6 and the conductive head 4 more quickly.

[0072] In one embodiment, the side of one end of the terminal 6 that contacts the conductive head 4 is set as a polygonal structure, and the polygonal structures correspond to different angles of adjustment of the posture adjustment components 9. An elastic member 10 is set between the terminal 6 and the fixed head 5 to form a support for the terminal 6. When the posture adjustment component 9 changes the angle of the terminal 6, the elastic member 10 supports the change in the contact force between the terminal 6 and the conductive head 4. The terminal 6 is a combined structure. The terminal 6 installed at one end of the fixed head 5 can swing, and the other end can be retracted.

[0073] In this embodiment, the terminal 6 is a double-ended retractable device. When in use, one end of the terminal 6 moves outward under the support of the elastic member 10. When it is close to the conductive head 4, the elastic member 10 can be used to support the terminal 6 so that the terminal 6 is in contact with the conductive head 4, and the power supply and power supply circuit are energized.

[0074] Optionally, the elastic member 10 is a compression spring, which is located between the fixed head 5 and the terminal 6 to support the retractable end of the terminal 6 .

[0075] The posture adjustment component 9 is located inside the housing 1 and moves with the terminal 6. The cross-section of the terminal 6 is cylindrical. After the angle of the terminal 6 is changed, the contact area between the polygonal structure and the conductive head 4 changes.

[0076] In one embodiment, the posture adjustment component 9 includes:

[0077] The electromagnetic frame is composed of an electromagnet 93 and a mounting frame 92 for mounting a blocking plate 91. A magnetic plate 94 is arranged on one side of the electromagnetic frame. The magnetic plate 94 is fixed inside the housing 1. The electromagnet 93 and the magnetic plate 94 interact with each other to control the mounting frame 92 to slide inside the housing 1. The movement path of the blocking plate 91 is located between the terminal 6 and the conductive head 4.

[0078] The conductive region 95 is located in the blocking plate 91 and is composed of a plurality of conductive plates with different conductivity coefficients.

[0079] In this embodiment, the blocking plate 91 serves to block the terminal 6 and the conductive head 4, so that the blocking plate 91 can quickly achieve the connection and separation between the terminal 6 and the conductive head 4 during use, and the position of the blocking plate 91 is controlled through the magnetic interaction between the electromagnetic frame and the magnetic plate 94. When the blocking plate 91 is retracted, the terminal 6 and the conductive head 4 are in stable contact.

[0080] Conductive plates with different conductivity coefficients are set. Due to the different conductivity coefficients, when the current is the same, there will be a larger voltage drop on the conductive plate with a lower conductivity coefficient, while the voltage drop on the conductive plate with a higher conductivity coefficient is smaller.

[0081] In one embodiment, the posture adjustment component 9 further includes:

[0082] A slideway 96 is provided inside the housing 1. The extension direction of the slideway 96 is consistent with the movement direction of the terminal 6. A slideway 97 is provided inside the slideway 96. The slideway 97 can be slidably provided inside the slideway 96 and cannot be separated from the slideway 96.

[0083] A clamp 98 is swingably disposed at one end of the slide 97 facing the terminal 6. One end of the clamp 98 clamps the connecting post and moves with the terminal 6. The other end of the clamp 98 extends into the interior of the slide 97 and can swing relative to the slide 97.

[0084] The driving rod 99 is arranged inside the slide 97. Driving members 910 are arranged at both ends of the driving rod 99 to change the position of the driving rod 99. The driving rod 99 is meshed with one end of the clamp 98 extending to the inside of the slide 97 for transmission.

[0085] Optionally, the driving member 910 is an electromagnetic block, and the driving rod 99 is pulled by the electromagnetic blocks located at both ends of the driving rod 99;

[0086] In another optional embodiment, the driving member 910 is a miniature telescopic rod, and the miniature telescopic rod is telescoped to change the position of the driving member 910 .

[0087] In this embodiment, since the driving rod 99 is engaged with the clamp 98 , when the driving rod 99 moves, the swing angle of the clamp 98 can be changed, and the position of the connecting column can be adjusted according to the swing angle of the clamp 98 .

[0088] The axis of one end of the clamp 98 extending into the interior of the slide 97 coincides with the axis of the connection position between the connecting column and the fixed head 5. The swing of the driving rod 99 can correspondingly change the swing angle of the connecting column, thereby accurately controlling the position of the connecting column.

[0089] In one embodiment, the motion mechanism 8 comprises:

[0090] The slide plate 81 is slidably disposed inside the housing 1, and the fixed head 5 is installed inside the slide plate 81, and the sliding movement drives the fixed head 5 to move;

[0091] A pressure chamber 82 is provided at one end of the slide plate 81 away from the fixed head 5 . The pressure chamber 82 is elastically provided and filled with a medium. The slide plate 81 is driven to move by changes in the medium pressure in the pressure chamber 82 .

[0092] In this embodiment, the slide plate 81 is driven to move by the change in medium pressure. The greater the medium pressure in the pressure chamber 82 is, the faster the slide plate 81 is driven, resulting in a shorter contact time between the connecting column and the conductive head 4.

[0093] Among them, one end of the pressure chamber 82 extends to the pushing position of the slide 81, and the medium pressure change inside the pressure chamber 82 causes the slide 81 to slide inside the shell 1. In order to facilitate the control of the pressure chamber 82, an electric control valve that can be used to control the connection state of the pressure chamber 82 and the slide 81 is arranged between the pressure chamber 82 and the slide 81, and the electric control valve controls the opening and closing of the pressure chamber 82.

[0094] In one embodiment, a pulling rod 83 is disposed on one side of the pressure chamber 82, and a pressure plate 84 is disposed on one end of the pulling rod 83 close to the pressure chamber 82. The pulling rod 83 changes the position of the pressure plate 84 to control the pressure change inside the pressure chamber 82.

[0095] The slide plate 81 is split, and the three sections of the slide plate 81 can slide independently, wherein the pulling rod 83 and the pressure chamber 82 are respectively installed on the outside of two sections of the slide plate 81 and push the other section of the slide plate 81 to slide through the pressure chamber 82.

[0096] In this embodiment, the slide plate 81 is set to be three-section, which can facilitate changing the position of the pressure chamber 82 by the pulling rod 83, and each section of the three-section slide plate 81 is restricted in sliding position, so that the slide plate 81 can be controlled to drive the fixed head 5 to change position.

[0097] In one embodiment, the motion mechanism 8 further comprises:

[0098] The electromagnetic strip 85 is installed between the slide plate 81 and the housing 1, and the electromagnetic strip 85 is installed on the slide plate 81 and the surface of the housing 1. When the electromagnetic strip 85 is energized, the sliding position of the slide plate 81 is determined by the change of the magnetic force of the electromagnetic strip 85.

[0099] The electromagnetic strips 85 are arranged to be inclined, and the inclination angles of the electromagnetic strips 85 are consistent.

[0100] In this embodiment, by changing the state of the electromagnetic strips 85, the slide plate 81 can slide inside the shell 1. When the magnetic forces of the two electromagnetic strips 85 repel each other, the electromagnet 93 is inclined, so it pushes the slide plate 81 to move outward and slide to different positions.

[0101] When the magnetic forces of the two electromagnetic strips 85 attract each other, the position of the slide plate 81 is fixed and the slide plate 81 does not change position.

[0102] The three-stage slide plate 81 is equipped with electromagnetic strips 85 to control the positions of the slide plates 81 respectively, thereby limiting the slide plates 81 to different positions.

[0103] In one embodiment, a swingable positioning bar 86 is provided between the electromagnetic bar 85 installed on the inner side of the slide 81 and the slide 81 . The positioning bar 86 is swingably provided on the inner side of the slide 81 , and the magnetic force change of the electromagnetic bar 85 changes the swing angle of the positioning bar 86 .

[0104] In this embodiment, through the swingable positioning bar 86, when the electromagnetic bar 85 located inside the shell 1 presents different magnetic force changes, the swing angle of the positioning bar 86 can be changed, so that the positioning bar 86 can stably drive the electromagnetic bar 85 to move and control the position of the electromagnetic bar 85.

[0105] In one embodiment, the wavelet analysis system 7 analysis method is as follows:

[0106] Signal acquisition: Real-time acquisition of voltage signals of the main power supply and backup power supply as input data for wavelet transform;

[0107] Wavelet transform: Perform wavelet transform on the collected voltage signal, decompose the signal into different frequency components, and analyze the time characteristics of each component;

[0108] Feature extraction: Through wavelet transform, the features in the voltage signal, such as the modulus maximum point, are extracted. The feature point corresponds to the mutation point of the signal and is used to detect voltage drops or anomalies.

[0109] Status judgment: Based on the extracted feature points, determine whether the power supply voltage is abnormal. If the main power supply voltage is abnormal, a switching command is issued to switch the power supply line to the backup power supply.

[0110] Switching execution: After receiving the switching instruction, the switching device controls the terminal 6 through the motion mechanism 8 to disconnect the main power supply and connect the backup power supply to complete the power switching process.

[0111] In this embodiment, the voltage signal is analyzed by wavelet to obtain the power supply status of the main power supply, and the distance between the terminal 6 and the backup power supply conductive head 4 is adjusted according to the power supply status of the main power supply.

[0112] In one embodiment, whether the power supply voltage is abnormal is determined based on the extracted feature points. The specific method includes:

[0113] Threshold judgment: Set a threshold for voltage change. When the voltage change exceeds the threshold, it is considered abnormal and the power supply needs to be switched.

[0114] Pattern recognition: Use machine learning algorithms such as support vector machines and neural networks to classify the extracted features and determine whether the voltage status is abnormal;

[0115] According to the voltage change state, the distance between the terminal 6 and the conductive head 4 is adjusted by the motion mechanism 8.

[0116] Exemplarily, the voltage signals of the main power supply and the backup power supply are collected in real time. Through wavelet transformation, it is found that the voltage of the main power supply drops significantly at a certain moment.

[0117] By extracting the modulus maximum point, it is determined that the voltage drop exceeds the set threshold, so a switching command is issued to switch the load to the backup power supply.

[0118] This method uses the time-frequency analysis capability of wavelet transform to effectively detect changes in power supply voltage and ensure that the dual power supply switching device can switch quickly and accurately when a power supply fails.

[0119] In summary, the technical solutions disclosed in the above embodiments of the present invention have at least the following advantages:

[0120] 1. The present application adjusts the distance and connection status between the terminal 6 and the dual power supply through the voltage change state, dynamically changes the position of the terminal 6, and optimizes the on-off path of the terminal 6 and the dual power supply, so as to reduce the time consumed in the dual power supply switching process, ensure the stability of the dual power supply switching process, avoid operation interruption or equipment impact damage during power switching, so as to ensure uninterrupted and continuous operation of electrical equipment.

[0121] 2. The signal is gradually refined at multiple scales through sampling, wavelet basis construction, wavelet transform scaling and translation operations, which can fully highlight the mutation characteristics, extract the power-off characteristics, quickly identify the state of the power supply line, and control the position of the terminal 6 to change according to the state of the power supply line, so as to realize the rapid switching of dual power supplies and change the movement path of the terminal 6 based on the state of the power supply line.

[0122] 3. The position of the terminal 6 is controlled by the motion mechanism 8 to realize the on-off connection between the terminal 6 and the dual power supply. The terminal 6 matches the number of power supplies. When in use, the two terminal posts 6 correspond to the two power supplies respectively, and the two terminal posts 6 are connected to the power supply line. When one of the terminal posts 6 is connected to the corresponding power supply, the power supply line can be powered.

[0123] 4. In the process of using the motion mechanism 8 to move the terminal 6, the state of the terminal 6 is adjusted through the posture adjustment component 9. In the process of separation adjustment, the connection between the terminal 6 and the power supply can be quickly achieved, and the isolation plate is used to disconnect the terminal 6 and the power supply to avoid involvement between the terminal 6 and the power supply during the separation process.

[0124] Although the present invention is disclosed in conjunction with the above embodiments, it is not intended to limit the present invention. Anyone familiar with this technology can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be based on the definition of the attached claims.

Claims

1. A dual power supply fast switching device based on wavelet algorithm, characterized in that: include: The shell has a plurality of mounting holes for fixed installation on its back, a plurality of mounting heads for fixing the power supply end are arranged on the top of the shell, screws are arranged inside the mounting heads for fixing the power supply end, a conductive head is arranged on one side of the mounting head, and the power supply end is installed inside the mounting head to make the conductive head conductive; A terminal is movably arranged inside the housing, and a fixing head is arranged on one side of the terminal to fix one end of the power supply line extending into the terminal, so as to limit the position of the terminal and the power supply line. When the terminal contacts the conductive head, the power supply line is connected to the power source for conduction; The wavelet analysis system gradually refines the signal at multiple scales through sampling, wavelet basis construction, wavelet transform scaling and translation operations, extracts power failure features, and determines the power supply status based on the power failure features; A motion mechanism is arranged inside the housing and controls the contact and separation between the terminal and the conductive head. The motion mechanism changes the position of the terminal according to the analysis of the power supply state by the wavelet analysis system. The distance between the terminal and the backup power supply conductive head is determined by the power supply state. The posture adjustment component is arranged inside the shell and is used to adjust the posture of the terminal, change the contact area and angle between the terminal and the conductive head, and the posture adjustment component includes a blocking plate for blocking the terminal and the conductive head from being energized and controlling the position of the blocking plate.

2. The dual power supply fast switching device based on wavelet algorithm according to claim 1 is characterized in that: The side of one end of the terminal that contacts the conductive head is set as a polygonal structure, and the polygonal structures correspond to different adjustment angles of the posture adjustment component. An elastic member is set between the terminal and the fixed head to form a support for the terminal. When the posture adjustment component changes the angle of the terminal, the elastic member supports the change in the contact force between the terminal and the conductive head. The terminal is a combined structure. The terminal installed at one end of the fixed head can swing, and the other end can be retracted.

3. The dual power supply fast switching device based on wavelet algorithm according to claim 2 is characterized in that: The posture adjustment components include: The electromagnetic frame is composed of an electromagnet and a mounting frame for mounting a blocking plate. A magnetic plate is arranged on one side of the electromagnetic frame, and the magnetic plate is fixed inside the shell. The electromagnet and the magnetic plate interact with each other to control the mounting frame to slide inside the shell. The movement path of the blocking plate is located between the terminal and the conductive head. The conductive area is located in the blocking plate, and the conductive area is composed of a plurality of conductive plates with different conductivity coefficients.

4. The dual power supply fast switching device based on wavelet algorithm according to claim 3 is characterized in that: The posture adjustment component also includes: A slideway is provided inside the housing, the extension direction of the slideway is consistent with the movement direction of the terminal, a slide frame is provided inside the slideway, and the slide frame can be slidably provided inside the slideway and cannot be separated from the slideway; A chuck is swingably arranged at one end of the slide toward the terminal, one end of the chuck clamps the connecting terminal and moves with the terminal, and the other end of the chuck extends into the interior of the slide and can swing relative to the slide; The driving rod is arranged inside the slide, and driving members are arranged at both ends of the driving rod to change the position of the driving rod. The driving rod is meshed and transmitted with one end of the clamp extending into the slide.

5. The dual power supply fast switching device based on wavelet algorithm according to claim 4 is characterized in that: Sports organizations include: A slide plate is slidably arranged inside the housing, and a fixed head is installed inside the slide plate, and sliding movement drives the fixed head to move; A pressure chamber is arranged at one end of the slide plate away from the fixed head. The pressure chamber is elastically arranged and filled with a medium. The slide plate is driven to move by the change of the medium pressure in the pressure chamber.

6. The dual power supply fast switching device based on wavelet algorithm according to claim 5 is characterized in that: A pulling rod is arranged on one side of the pressure chamber, and a pressure plate is arranged on one end of the pulling rod close to the pressure chamber. The pulling rod changes the position of the pressure plate to control the pressure change inside the pressure chamber. The slide plate is split, and the three sections of the slide plate can slide independently, wherein the pulling rod and the pressure chamber are respectively installed on the outside of two sections of the slide plate and push the other section of the slide plate to slide through the pressure chamber.

7. The dual power supply fast switching device based on wavelet algorithm according to claim 6 is characterized in that: The sports body also includes: The electromagnetic strips are installed between the slide plate and the shell, and the electromagnetic strips are installed on the slide plate and the surface of the shell. When the electromagnetic strips are energized, the sliding position of the slide plate is determined by the change of the magnetic force of the electromagnetic strips. The electromagnetic strips are arranged to be inclined, and the inclination angles of the electromagnetic strips are consistent.

8. The dual power supply fast switching device based on wavelet algorithm according to claim 7 is characterized in that: A swingable positioning bar is arranged between the electromagnetic bar installed on the inner side of the slide and the slide. The positioning bar is swingably arranged on the inner side of the slide. The magnetic force change of the electromagnetic bar changes the swing angle of the positioning bar.

9. The dual power supply fast switching device based on wavelet algorithm according to claim 8, characterized in that: The wavelet analysis system analysis method is as follows: Signal acquisition: Real-time acquisition of voltage signals of the main power supply and backup power supply as input data for wavelet transform; Wavelet transform: Perform wavelet transform on the collected voltage signal, decompose the signal into different frequency components, and analyze the time characteristics of each component; Feature extraction: Through wavelet transform, the features in the voltage signal, such as the modulus maximum point, are extracted. The feature point corresponds to the mutation point of the signal and is used to detect voltage drops or anomalies. Status judgment: Based on the extracted feature points, determine whether the power supply voltage is abnormal. If the main power supply voltage is abnormal, a switching command is issued to switch the power supply line to the backup power supply. Switching execution: After receiving the switching command, the switching device controls the terminal through the motion mechanism to disconnect the main power supply and connect the backup power supply to complete the power switching process.

10. The dual power supply fast switching device based on wavelet algorithm according to claim 9, characterized in that: Based on the extracted feature points, determine whether the power supply voltage is abnormal. The specific method includes: Threshold judgment: Set a threshold for voltage change. When the voltage change exceeds the threshold, it is considered abnormal and the power supply needs to be switched. Pattern recognition: Use machine learning algorithms to classify the extracted features and determine whether the voltage status is abnormal; According to the voltage change state, the distance between the terminal and the conductive head is adjusted through the motion mechanism.

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