176 results about "Sequential control" patented technology

The invention discloses a remote OTA firmware upgrading method for multiple MCUs. The remote OTA firmware upgrading method comprises the steps that a master control MCU receives OTA firmware data issued by a cloud server in real time and stores the OTA firmware data; the main control MCU carries out protocol analysis on the received OTA firmware data, carries out shunting processing on the OTA firmware data and Modbus data, and carries out data analysis and verification on the OTA firmware data to obtain a data packet passing verification; the master control MCU subpacks the data packets passing the verification and forwards the data packets to the target sub-MCUs; the sub-MCUs receive the data packets and carry out subpackage recombination and sequence control on the data packets to form a complete OTA upgrade packet; and the sub MCU executes the Bootloader upgrade according to the OTA upgrade package.

The invention relates to the technical field of water conservancy project automation and industrial control, in particular to a water conservancy equipment collaborative operation system based on an industrial control system, which comprises a programmable input mapping and logic matching unit, a data processing unit and a data processing unit, the system carries out binary bit mode matching on the operation result and the feature data block in the memory; the logical operation and addressing unit is used for calculating control lag time and generating a structured digital control sequence data stack; the sequential control and instruction addressing unit is used for generating a cooperative control instruction set containing sequential logic; the output mapping and checking unit is used for reading real-time feedback, and if deviation exists, an interruption compensation program is triggered to correct an action curve of an executing mechanism; the storage rewriting and loop optimization unit is used for correcting transmission delay parameters of the model and realizing closed-loop optimization; according to the method, the problem of model distortion caused by physical property drift is solved, and stable full-life-cycle operation is ensured.

The stamping die is applied to the technical field of stamping dies and comprises an upper die base, a lower die base, a lower die and a lifting plate arranged in a cavity below the lower die, an ejector rod is arranged on the lifting plate, the ejector rod is of a hollow structure and is communicated with a first air bag, and when the ejector rod moves upwards along with the lifting plate to be ejected out, the air bag is communicated with the lower die. The air bag is synchronously extruded to release air in the air bag through the ejector rod, and air flow buffering is formed between the ejector rod and the mold; the lifting plate is connected with the upper die base through a connecting piece, so that the lifting plate is driven to move upwards after the upper die is completely separated from the lower die, and sequential control of ejection actions is realized; a second air bag communicating with the cavity is arranged below the lifting plate, and air flow is formed in the reset process of the lifting plate for heat dissipation and buffering. Through the structural design, under the condition that an independent power source is not added, cooperative improvement of demolding friction reduction, action time sequence control and long-term operation stability is achieved, and the demolding mechanism is suitable for reliable demolding of parts under the continuous stamping working condition.

The present application relates to an annular kneading massage system, a pneumatic massage system for enhancing massage stability, and a vehicle seat, comprising: an airbag arrangement, wherein the airbag arrangement comprises massage airbags and a support airbag, wherein at least three massage airbags are provided, several of the massage airbags being arranged enclosingly; wherein at least one support airbag is provided, wherein several of the massage airbags being arranged enclosingly on a central axis side of the support airbag; furthermore, a control arrangement, wherein the control arrangement comprises an air source, an air distribution valve, and a control unit, wherein the air source inflates the support airbag and the massage airbags via the air distribution valve; wherein the air distribution valve sets an airflow state;wherein the control unit controls actions of the air source and the air distribution valve according to a specific time sequence, wherein it is configured by the specific time sequence such that in the multiple massage airbags at least one of the massage airbags is in a fully inflated, saturated state and at least one of the adjacent massage airbags is in a partially inflated, unsaturated state (which does not include a deflated state), and that the positions of the multiple massage airbags, which are inflated and deflated according to the specific time sequence, can slide sequentially. The present application can realize a continuous ring-shaped kneading massage, which provides the occupants with a better massage experience.

The control system (3000) has an input interface (311) that accepts input of input information (D31) from a user (1) as a command to a target device (2). The input information (D31) is information indicating a command composed of a plurality of operations to the target device (2). The learning model unit (300) inputs the input information (D31) to a learning model and outputs operation instructions (D32) indicating sequential control for realizing a series of controls in the target device (2) for implementing the plurality of operations.

The invention relates to the technical field of sequential control, and discloses a sequential logic control circuit for a noise shaping SAR ADC (Synthetic Aperture Radar Analog to Digital Converter), which comprises an analog signal acquisition circuit for receiving and preprocessing an initial input signal; the noise shaping circuit is used for performing frequency spectrum shaping on quantization noise in the analog signal and generating the analog signal subjected to noise shaping; the successive approximation type analog-to-digital converter is used for performing bit-by-bit comparison with the analog signal subjected to noise shaping and gradually completing conversion from the analog signal to the digital signal from the highest bit to the lowest bit; and the clock control circuit is used for coordinating sequential logic among the analog signal acquisition circuit, the noise shaping circuit and the successive approximation type analog-to-digital converter. According to the method, frequency spectrum remodeling is carried out on the quantization noise in the signal, the signal-to-noise ratio of the signal is remarkably improved on the premise that the hardware complexity is not additionally increased, and then interference of the noise on follow-up analog-to-digital conversion is reduced.

The invention discloses a dotting control method, equipment and device, a storage medium and a program product. The dotting control method comprises the following steps that the distribution condition of to-be-processed points on a to-be-processed object is acquired; creating a plurality of processing path groups according to the distribution condition of the to-be-processed points; wherein each machining path group at least comprises two machining paths, and the at least two machining paths included in each machining path group have the same preset machining sequence; and a machining head is controlled to synchronously machine the points to be machined on all the machining paths in the same machining sequence in the different machining path sets according to the preset machining sequence. The method and the device are used for re-determining a machining path according to the distribution condition of to-be-machined points on a to-be-machined object and a preset machining sequence, different requirements of actual machining are met, the problem that the machining effect is poor due to the fact that machining is limited by the precision of a conveying assembly according to a fixed machining path is solved, the machining effect of large-breadth machining is effectively optimized, and the machining efficiency is improved.

The invention belongs to the technical field of airplane structure design, and particularly relates to a cabin door closing and locking sequence control monitoring mechanism. The device comprises a support base, a locking position electric switch pressing block assembly and a closing position electric switch pressing block assembly. The support base is fixed to a cabin door frame and provided with a groove for installing an electric switch. The locking and positioning switch pressing block assembly comprises a connecting rod rocker arm hinged to the base, one end of the connecting rod rocker arm is coupled with a roller on the cabin door, and the other end of the connecting rod rocker arm is provided with a pressing block with a first pressing rod and connected with a reset tension spring. One side of the pressing block rocker arm is provided with a second pressing rod corresponding to the closing position pressing type electric switch, the other side is provided with a locking pin below the pressing block, and the bottom side of the end is in contact with an approaching assembly on the cabin door. When the cabin door is opened, the reset torsion spring enables the second pressing rod to press the electric switch, meanwhile, the locking pin abuts against the bottom of the pressing block, mechanical interference is formed, and mistaken locking signal output is prevented. The safety and reliability of cabin door state monitoring are improved.

The invention provides a connector with a secondary locking structure. The connector comprises a socket sheath assembly and a matching end, the socket sheath assembly is provided with a large terminal and at least two small terminals, and the small terminals are interconnected to form an interlocking loop; the contact positions of the large terminal and the small terminal with the matching end are arranged front and back along the insertion direction; a pre-assembling matching structure for positioning the socket sheath assembly and the matching end at a pre-assembling matching position is arranged between the socket sheath assembly and the matching end, so that the large terminal is meshed with the large-specification contact pin of the matching end, the power supply loop is switched on, the small terminal is separated from the small-specification contact pin of the matching end, and the interlocking loop is switched off; and a final matching structure for positioning the socket sheath assembly and the matching end at a final matching position is arranged between the socket sheath assembly and the matching end, so that the small terminal is meshed with the small-specification contact pin, and an interlocking loop is switched on. According to the invention, the matching contact positions of the large and small terminals are arranged in a staggered manner, and mechanical positioning of pre-assembling and final matching is matched, so that the on-off sequence control of an interlocking loop on a power supply loop is forcibly realized, the electric arc risk caused by hot plugging is effectively avoided, and the safety and reliability of the connector in a 48V high-voltage environment are remarkably improved.

This utility model relates to the field of automated processing equipment technology and discloses a sheet material feeding and separating device, including a base, a material drop port on the upper surface of the base, a sheet material receiving cavity fixedly installed on the upper surface of the base, and a sheet material separating mechanism on the upper surface of the base. The separating end of the sheet material separating mechanism is located inside the sheet material receiving cavity. This utility model simultaneously drives the baffle and the clamping plate through a connecting rod, and with the difference in trajectory between the linear slide groove and the arc slide groove, it realizes the precise sequential action of "clamping the upper sheet material first and then withdrawing the bottom support" and "extending into the tray first and then releasing the clamp". This mechanical linkage sequential control ensures that only the bottom sheet material falls under the action of gravity each time, while the remaining sheets material above are always stably clamped, effectively avoiding the problem of multiple sheets material falling at the same time or jamming due to static electricity, oil film or edge adhesion, and significantly improving the reliability and consistency of single sheet separation.

A wind turbine flutter suppression method includes: determining a nacelle-wind direction angle between a wind direction and a nacelle direction; and determining a pitching method for changing pitch angles according to the nacelle-wind direction angle. The pitching method includes a speed-controlled pitching scheme and a pitch-angle-sequence-controlled pitching scheme. The speed-controlled pitching scheme includes regulating pitch angles of blades of the wind turbine according to a rotor speed of the wind turbine to keep the rotor speed within a preset speed range until flutter of the wind turbine is suppressed. The pitch-angle-sequence-controlled pitching scheme includes performing a pitching operation on the pitch angles of the blades of the wind turbine according to preset pitching rules until the flutter of the wind turbine is suppressed.

A method for controlling a power transmission device for a vehicle is disclosed, comprising a traction motor that transmits power to auxiliary drive wheels of the vehicle, comprising main and auxiliary drive wheels; a traction motor control unit that controls the traction motor; a housing that rotates when receiving the power generated by the traction motor; a first lateral gear connected to a first wheel of the auxiliary drive wheels; a second lateral gear connected to a second wheel of the auxiliary drive wheels; a pinion that meshes with the first lateral gear and the second lateral gear; a cage that supports the pinion and is configured to rotate relative to the housing; a disconnect actuator system (DAS) comprising a locking plate that is supported by the housing to engage with or disengage from the cage; and a DAS controller that controls the DAS.a limited-slip differential (LSD) comprising a drum that can be operationally connected to the housing, a first clutch disc coupled to the drum, a second clutch disc rotatable together with the second lateral gear, and a hydraulic device configured to engage and disengage the first clutch disc and the second clutch disc; and an LSD controller that controls the LSD, the method comprising performing sequence control for the traction motor control unit, the DAS controller, and the LSD controller of the power transmission device, thereby avoiding shocks or damage due to control conflicts.

The utility model discloses a poly V-belt sheet cutting circuit system. The system comprises a three-phase power supply; the system comprises a lead screw motor control loop, a conveying motor control loop and a sequence control loop. The sequence control loop comprises a starting control unit, a lead screw downward-moving cutting unit, a lead screw reset unit and a conveying moving unit. The lead screw downward-moving cutting unit is used for controlling a lead screw motor to rotate forwards to drive a cutter to move downwards, and grooving is conducted on the poly V-belt sheet. The lead screw reset unit is used for controlling the lead screw motor to rotate reversely to achieve reset. The conveying and moving unit is used for controlling the conveying motor to work, moving the cut poly V-belt sheet out of the workbench and feeding a new poly V-belt sheet to be machined. The multi-wedge-belt sheet cutting device has the advantages that the working procedures of downward moving cutting of the lead screw, resetting of the lead screw, conveying of multi-wedge-belt sheets and the like can be automatically controlled, the consistency and reliability of the multi-wedge-belt sheet cutting process are guaranteed, meanwhile, the production efficiency is improved, and the manual operation intensity is reduced.

This invention discloses a fully intelligent control system and method for combined cycle power units based on large-scale model analysis. The system includes a first, second, third, and fourth fully intelligent control sequential control command feedback unit, as well as a first, second, third, and fourth fully intelligent control sequential control command unit. This system and method can rapidly generate optimal control parameters, simultaneously considering system efficiency, equipment lifespan, energy consumption, and emissions targets during start-up, operation, and shutdown control, thereby improving the system's response speed to load changes.

The invention discloses a stoma device based on radial wrinkle dynamic sealing and sequential control and an intelligent control system of the stoma device, and relates to the technical field of medical instruments. The device comprises a base assembly, a flexible sealing cylinder and a defecation guide assembly. The outer ring is rotationally driven to axially displace relative to the fixed ring, compression force is applied to the flexible sealing cylinder body, so that the flexible sealing cylinder body is subjected to unstable buckling to form annular wrinkles, and second main control sealing is realized by utilizing radial contraction force of the wrinkles; a sealing cover at the tail end of the defecation guiding assembly forms a first isolation seal. The system supports two-stage sequential control, allows a user to independently open the tail end seal for defecation preparation in the closed state of the main seal, and thoroughly eliminates the risk of opening while leaking. The invention further provides an upgraded and enhanced scheme, an intervention strategy is dynamically adjusted based on the pressure change rate, breathing guidance, logic lock operation and remote monitoring functions are provided, and the crossing from passive monitoring to active rehabilitation guidance is realized. According to the invention, bag-free dignate defecation is realized, and the safety, comfort and life quality of stoma patients are remarkably improved.

The invention discloses a hydraulic system of a movable crucible firing furnace, belongs to the technical field of heavy equipment movement, and is used for driving a boiler protection outer cover to move between two furnace foundations along a rail. Comprising a hydraulic power module, a jacking and lowering execution component, a walking driving mechanism and an integrated control module. The walking driving mechanism comprises a plurality of supporting leg walking composite wheel assemblies which are directly connected with a supporting oil cylinder of the jacking and lowering execution component. The hydraulic power module supplies oil to each component through a pipeline; the integrated control module can sequentially control circulation of jacking, walking and lowering operation. Wherein the hydraulic power module is provided with an air filter and an oil return filter element device to form a cleaning and filtering system; the supporting leg walking composite wheel assembly integrates a driving wheel set, a driven wheel set and a walking hydraulic motor speed reducer, and the structure is compact. Synchronous jacking, stable walking and accurate lowering of the heavy-load outer cover are achieved, and the heavy-load outer cover jacking device has the advantages of being high in working efficiency, high in space adaptability, reliable in operation and long in service life.

The invention discloses an energy storage resource cooperative control method, system and device and a medium, and belongs to the field of electric power systems.The method comprises the steps that real-time topology, power flow and device data are obtained by periodically scanning the operation state of a power grid, and an adjustable energy storage resource pool is dynamically updated; comprehensively evaluating the security risk level of the power grid according to the multi-dimensional analysis results of the electric power and electric quantity balance, the system power flow, the reactive voltage and the stability; according to the risk level assessment result, an optimization control strategy is generated in combination with optimization control with the minimum adjustment cost as the target, and a preset control mode of sequence control based on a preset priority or proportional control based on a sharing factor; and finally, the control strategy is issued to each energy storage node for execution. Therefore, by implementing the method, dynamic self-adaption and refined coordination of power grid safety control can be realized, and the coping capacity and the operation reliability of the power grid to high-proportion new energy access are effectively improved.

Sequence control device (100, 200, 300) for a main signal / distant signal system (220, 320), comprising: - a receiving module (102, 202, 302) configured to receive (401) a first control data set from a first interlocking (222, 322), wherein the first control data set contains at least a first speed data for a defined rail vehicle, - a transmission module (108, 208, 308) configured to transmit (403) the received first control data set to a second interlocking (224, 324) of the main signal / distant signal system (220, 320), - at least one control unit (104, 204, 304) with at least one control module (106, 206, 306), - wherein the receiving module (102, 202, 302) is configured to Receiving (405) a second control data set from the first interlocking (222, 322), wherein the second control data set contains at least a second speed data for the defined rail vehicle,- wherein the control module (106, 206,306) is set up to control (411) the transmission module (108, 208, 308) such that in a first transmission step a stop data record is transmitted to the second interlocking (224, 324), containing at least one stop information date, and that after the expiry of a defined time interval in a second transmission step (413) the second control data record is transmitted to the second interlocking (224, 324).

The invention discloses an air conditioning system and a control method of the air conditioning system, relates to the technical field of air conditioners, and can avoid the problem of device burnout caused by improper start-stop time sequence of each module in the air conditioning system. The air conditioning system comprises an outdoor unit; the driving module is used for controlling on-off of a circuit in the air conditioning system and the operation state of the outdoor unit; the power factor correction module is used for improving a power factor between the power supply and the outdoor unit; the main control module is configured to respond to a received state change instruction and determine a state change sequence of the driving module and the power factor correction module based on the state change instruction; the state change instruction is used for indicating the outdoor unit to start running or stop running; and according to the state change sequence, the driving module and the power factor correction module are controlled to sequentially carry out state change, so that the outdoor unit starts running or stops running.

Extension guide (1) with a stationary guide rail (2) on which a center rail (3) is movably mounted, and a running rail (4) movably mounted on the center rail (3), and a sequence control which, during an extension or retraction movement, connects two of the three rails (2, 3, 4) to form a motion unit, so that only one rail is movable relative to the other two rails, wherein the sequence control has a lever (5) pivotably mounted on the center rail (3) about an axis (13), on which two cam guides (16, 16') are provided, and on each cam guide (16, 16') a driver (14, 15) connected to the running rail (4) or the guide rail (2) can be engaged in order to pivot the lever (5) and release the other driver (14, 15), characterized in that the lever (5) interacts with a stop surface on a component to to prevent the lever (5) from pivoting in an extended position.

This invention relates to the field of multi-source coordinated control technology in distribution networks, and discloses an automatic switching method and system for multiple power sources in a distribution network. The switching method includes: dynamically modeling the transient power flow of the main power source and distributed power sources in a multi-source distribution network, and performing dynamic response analysis of topology changes; evaluating the system energy obtained from the dynamic modeling using the transient energy function method, calculating the kinetic and potential energy components before and after the switching, and determining the system energy balance state based on the comparison result of the energy difference and the critical energy threshold; and executing phased soft switching control based on the energy evaluation result, through sequential control logic of synchronization stage, power sharing stage, and switching transition stage, and performing gradual power transition between the main power source and distributed power sources according to a predictive control algorithm. This invention achieves real-time power flow reconstruction under topology changes, energy-driven switching decisions, and smooth power transition, reducing voltage fluctuations and transient impacts caused by switching.

An anti-deflection injection mold with a floating needle positioning mechanism comprises a front mold body and a rear mold body, a cavity is defined by the forming faces of the front mold body and the rear mold body, an insert is arranged in the cavity, and a positioning mechanism is arranged on the opposite side of the insert. The positioning mechanism comprises a guide sleeve fixed in the injection mold, a floating needle is slidably connected in the guide sleeve, the front end of the floating needle can penetrate through the guide sleeve to be connected with the insert in an abutting mode, a limiting step is arranged at the rear end of the floating needle, and a reset elastic piece is arranged between the front end of the limiting step and the guide sleeve. A driving assembly is arranged at the rear end of the floating needle and is subjected to sequential control through a PLC (Programmable Logic Controller) control system; a pressure sensor is arranged at the output end of the driving assembly. Through the synergistic effect of the floating needle, the driving assembly and the PLC control system, accurate positioning and automatic avoiding of the insert in the injection molding process are achieved. The stability and reliability of the injection molding process are ensured by adopting the symmetrically distributed positioning mechanisms, closed-loop control of the pressure sensor and sequential control of the PLC system.

The utility model discloses an automatic testing device for a one-key sequence control function of a transformer station, which relates to the technical field of auxiliary testing of an electric power system and comprises a detection supporting mechanism used for providing support for subsequent clamping and detection of a circuit breaker and comprising supporting legs. An upper supporting table is fixedly connected to the upper portions of the supporting legs. According to the utility model, through linkage of the push-up handle and the spring, the transverse and longitudinal clamping blocks are driven to synchronously expand outwards or clamp, after release, the clamping blocks are automatically reset to realize stable clamping, the long threaded rod is driven to finely adjust the longitudinal clamping plate in cooperation with the adjusting nut, the device can adapt to circuit breakers with different widths, and the flexible rubber clamping surface is anti-slip and wear-resistant. A stable reference is provided through the supporting legs and the cross-shaped guide sliding rail, the clamping block linkage structure is compact through the design of a handle through hole and a connecting rod groove, one-key clamping and detection head replacement are achieved through mechanical transmission in the whole operation process, manual complex operation is not needed, the structure is simple and reliable, and field automatic testing is facilitated.

The invention discloses a water treatment control method for a water treatment hierarchical scheduling architecture, which comprises the following steps: triggering a water production process in response to a liquid level signal of an ultrafiltration water production tank or generating a control instruction in response to a timing or pressure difference signal and conflict prediction and resolution between a sequence control state and public resources; generating a sequential control task through a sequential control module based on the control instruction, wherein the sequential control task at least comprises target physical equipment and a corresponding scheduling command; based on mapping data and a sequence control task between the selected equipment preset by the HMI and the physical equipment, the sequence control task is routed to the target physical equipment through a scheduling module, and the scheduling module at least comprises a multi-medium scheduler, an ultrafiltration scheduler and an activated carbon scheduler; the basic control logic is executed through the target physical equipment function block, the corresponding target physical equipment is driven to complete operation, the target physical equipment comprises a multi-medium single machine, an activated carbon single machine and an ultrafiltration single machine, and the operation at least comprises interlocking and fault diagnosis.

The invention relates to the technical field of automotive electronics, and provides a security verification method and system for collaborative upgrading of multiple electronic control units. The method is jointly executed by a vehicle-mounted central gateway and a plurality of sub-ECUs. The central gateway receives an upgrade fragment set issued by the cloud, wherein the upgrade fragment set comprises a main fragment and a plurality of sub-fragments which are signed and contain an upgrade rule; after verifying the signature of the main fragment, dynamically deriving a unique session key of each sub-ECU based on an upgrading rule and sub-ECU state information, encrypting the corresponding sub-fragment, and sending the encrypted sub-fragment to each sub-ECU; each sub-ECU locally verifies the sub-fragments and obtains upgrade content, and upgrade is executed in sequence according to an upgrade rule; and the central gateway monitors the upgrade state of each sub-ECU, and triggers the system-level collaborative rollback when any sub-ECU fails to upgrade. According to the method, key isolation is realized through dynamic key derivation, version compatibility is ensured through credible sequence management and control, reliability is improved through system-level rollback, and the problems of safety and compatibility in multi-ECU collaborative upgrading are effectively solved.

The invention provides a dual-mode online anti-misoperation communication switching method and system, and aims to improve the operation efficiency and safety of a power system. The system architecture is composed of an intelligent anti-misoperation host and an on-site anti-misoperation device, integrates core functions of sequential control operation, anti-misoperation checking and the like, and constructs a whole-process anti-misoperation system. Under the normal working condition of communication, the comprehensive intelligent anti-misoperation host is used as an instruction center to accurately control each module of the system; when abnormal conditions such as communication interruption occur, the system starts a dual-redundancy guarantee mechanism: on one hand, an intelligent key is linked with a related subsystem to complete emergency unlocking operation; and on the other hand, the edge intelligent anti-misoperation agent device automatically triggers a control instruction to drive an intelligent lock control subsystem, a maintenance isolation subsystem and other subsystems to cooperatively execute switching operation, so that stable operation of the power system is ensured. According to the invention, refined management and control of multiple subsystems are realized through a dual-mode switching mechanism, the'five-prevention 'safety specification requirement of the power system is comprehensively met, and a solid guarantee is provided for safe operation of the power system.

Door closer (10) for an active leaf (320) of a double-leaf door (300) equipped with a closing sequence control (206), in particular a fire and / or smoke protection door, wherein the door closer (10) can be optionally mounted in a first installation position or in a second installation position and comprises: a closer housing (24) that can be arranged on the active leaf (320); a closer piston (32) that is slidably guided in the closer housing (24) and is in particular loaded in the closing direction (30) by a mechanical energy storage device (28), by which a hydraulic volume (33) of the closer housing (24) is divided into a first hydraulic chamber (34) and a second hydraulic chamber (36); a closer shaft (38) rotatably mounted in the closer housing (24), cooperating with the closer piston (32), which can be coupled or is coupled in a rotationally fixed manner to a closer lever (22) of the door closer (10);a flow channel arrangement (42) preferably formed in the closing housing (24), which fluidly connects the first hydraulic chamber (34) and the second hydraulic chamber (36); a locking unit (26) with a first locking valve (46) arranged in the flow channel arrangement (42) for blocking the hydraulic flow from the first hydraulic chamber (34) to the second hydraulic chamber (36) and thus a closing movement of the closing piston (32) and the actuating leaf (320) in the first installation position, and a second locking valve (48) arranged in the flow channel arrangement (42), which can be controlled independently of the first locking valve (46) for blocking the hydraulic flow from the first hydraulic chamber (34) to the second hydraulic chamber (36) and thus a closing movement of the closing piston (32) and the actuating leaf (320) in the second installation position.

The invention discloses a preparation method of a hierarchical heterogeneous interface magnetic-dielectric synergistic wave-absorbing material. The preparation method comprises the following steps: carrying out liquid-phase shearing and stripping on expanded graphite to obtain a flaky few-layer graphite dispersion liquid; a nickel-iron layered double hydroxide enrichment micro-area is constructed on the surface and the edge of the nickel-iron layered double hydroxide in situ; a cobalt source precursor and an iron source precursor are introduced, so that CoFe2O4 nanoparticles are preferentially generated in situ on the surface of the enrichment micro-area, and a hierarchical heterogeneous interface regulation and control area with local LLG / LDH / CoFe2O4 in sequential contact is formed. According to the invention, the problems of poor impedance matching and interface disorder caused by direct contact of magnetic particles and a carbon skeleton in the prior art are solved through a sequential control process, and impedance matching optimization, interface polarization enhancement and magnetic-dielectric cooperative loss are realized. When the matching thickness of the obtained composite material is 2.0 mm, the minimum reflection loss reaches-57.2 dB, the effective absorption bandwidth is 5.6 GHz, and the composite material has wide application prospects in the fields of wave-absorbing coatings, structural wave-absorbing patches, anti-electromagnetic radiation fabrics and the like.

The cutting device for furniture production comprises a machine tool provided with a laser cutting unit, the machine tool is provided with a discharging device, and the discharging device comprises a supporting base and a pushing unit; the pushing unit comprises a first pushing rod and a second pushing rod, the first pushing rod and the second pushing rod can slide in the height direction of the machine tool, a plurality of first collision heads are fixedly arranged on the first pushing rod, a plurality of second collision heads are fixedly arranged on the second pushing rod, and the first pushing rod and the second pushing rod are driven by a driving mechanism; the driving mechanism has a first working mode; and in the first working mode, the driving mechanism drives the first pushing rod and the second pushing rod to generate downward pressing actions with a preset mechanical time difference and enables the first collision head and the second collision head to alternately abut against the plate. According to the invention, through the multi-point composite striking mechanism under sequential control, local torsional deformation and fatigue pre-weakening of the nodes are generated, so that the micro-connection nodes are forced to generate brittle fracture.

This invention discloses a method for confirming the correctness of one-click sequential control of railway substation based on non-homogeneous two-factor authentication, belonging to the field of substation automation control technology. It addresses the problem of fragmented coupled modeling of ticket logic, station interlocking, power flow, and protection effects, lacking a deterministic decision chain that unifies interlocking graphs, causal graphs, invariants, and digital twin calculations. By linking the structural verification formed by interlocking, causality, and invariants with the earliest violation search driven by digital twins through a two-factor concatenation, a single decision chain is established, outputting a deterministic conclusion on anomaly handling. A minimum available permission set is derived using permission capability grading, and a one-time authorization order bound to context and influence domain dual hashes is issued simultaneously, achieving consistent binding of permissions and scenarios. Temporary interlocks and rollback linkages are synthesized based on the calculated influence list, generating verifiable constraint signatures and mandating verification during execution. A log chain is recorded using baseline identifiers and context packets as inputs.