274 results about "Dual mode" patented technology

The invention relates to the field of battery management, and discloses a battery management system (BMS) control method for battery prediction, which comprises the following steps of: analyzing the difference condition of single batteries; constructing a conventional hybrid balanced switching strategy; constructing a differential hybrid balanced switching strategy; forming different equalization adjustment strategies by the conventional hybrid equalization switching strategy and the difference hybrid equalization switching strategy; determining an executed balance adjustment strategy according to the difference condition of the single batteries; active equalization and passive equalization are carried out separately in a hardware isolation mode and a logic interlocking mode; and constructing a battery state prediction model, and predicting the battery state according to the battery state prediction model. According to the method, the battery equalization adaptability is optimized, the dual goals of improving the equalization effect and reducing the equalization loss are achieved at the same time, the battery state prediction process is doubly optimized through the equalization reference parameters and the conventional operation data, the influence of the equalization process is considered by the battery state prediction model, and the battery state prediction is more accurate.

The invention provides a stress detection system and method based on active and passive dual modes, and relates to the technical field of stress detection, and the system comprises a stress sensor and a data processing module which are in communication connection. The stress sensor comprises a first coil assembly, a second coil assembly and a three-axis magneto-dependent sensor. The first coil assembly is configured to apply a square wave current to the first coil assembly through the excitation source to generate an ACSM effect; the data processing module is configured to collect a voltage signal and a phase signal of the second coil assembly under the ACSM effect; collecting a magnetic field signal of the three-axis magneto-dependent sensor; performing feature extraction on the voltage signal, the phase signal and the magnetic field signal to obtain feature data; and inputting the characteristic data into the joint characteristic decoupling mathematical model, and determining the pipeline stress value of the to-be-detected pipeline, so as to solve the problems that an existing stress sensor is large in error during detection in a low-stress area, and the accuracy of a detection result is low due to interference of an environmental magnetic field.

The invention discloses a bridge underwater safety detection method based on opto-acoustic dual modes, and relates to the technical field of underwater engineering detection, and the method comprises the following steps: obtaining water area particle size distribution and concentration data by using a multi-frequency acoustic suspended sediment concentration profiler, establishing an environmental parameter database, configuring a shipborne detection device according to the initial environmental parameter database, and detecting the underwater safety of a bridge according to the shipborne detection device. The method comprises the following steps: setting a three-axis stabilized platform carrying a polarization imaging camera and a multispectral LED array, deploying a multi-beam detection module and ADCP equipment, and establishing a unified coordinate system; multi-angle original intensity images are collected through a polarized optical imaging module, and multi-exposure fusion is carried out after processing is carried out through a mutual information minimization algorithm. An optical image and an acoustic point cloud are deeply fused by adopting a graph neural network, the detection precision is improved through dynamic weight optimization of an attention mechanism and a space-time registration algorithm, a multi-index fusion model is constructed based on fuzzy logic and a D-S evidence theory for adaptive early warning decision, upgrading from single-parameter alarm to multi-dimensional decision is realized, and the false alarm rate is reduced.

The application discloses and realizes a dual-mode multi-load loop arc fault detection system, and aims at the problems of insufficient precision of existing real-time arc fault detection devices and high-load continuous operation of equipment, etc., divides the fault arc into two kinds of starting arc and process arc, and uses different modes of detection methods according to different conditions of starting fault and process fault, adopts a characteristic value partition detection method in the process mode, and makes the method tend to be simple under the condition of ensuring accuracy and real-time performance. The method takes an stm32H7 as a core microprocessor, is matched with a conditioning circuit, a power supply circuit, a data acquisition circuit and a wireless communication circuit to form a dual-mode fault diagnosis system. The application has the characteristics of high monitoring precision and high speed, and has strong popularization value and use value.

The invention discloses an air-ground power multiplexing hovercar adopting electric wheel angle modules. The air-ground power multiplexing hovercar integrates electric wheels, a suspension system, a steering system, a car body and a support system. The hovercar has the dual-mode function of a land mode and a flight mode, and switching between the land mode and the flight mode is completed through cooperative work of the electric wheels, the steering system and the support system. Wherein the electric wheels and the steering system both adopt high-integration power multiplexing design, that is, a land mode and a flight mode multiplex the same set of execution motor and planetary gear train, so that the problems that too many actuators are introduced due to switching of the flight mode and the dual modes, the light weight level is low due to miscellaneous equipment, and the power consumption is low are solved to a great extent. And the problem of low-efficiency carrying of invalid loads caused by two sets of independent power is solved. The electric wheel angle module of the hovercar adopts a modular design and is also suitable for four-wheel, six-wheel and other multi-axle vehicle frameworks, and proper electric wheel angle modules can be matched and mounted according to vehicle performance requirements.

The invention discloses an underwater robot multi-source energy system and an energy management method, and relates to the technical field of underwater robot energy, and the system comprises a lithium ion battery which is directly connected in parallel with a DC bus; the super capacitor is connected to the direct current bus through the bidirectional DC / DC converter; the flexible power generation module is used for capturing water flow disturbance and mechanical vibration energy in the environment where the underwater robot is located; the propelling kinetic energy recycling unit has a driving mode and a power generation mode and is used for recycling kinetic energy in the propelling and braking processes of the robot; the battery management system is used for monitoring the voltage, the current, the temperature and the SOC state of each energy unit in real time and executing an energy distribution strategy based on multi-source information fusion; wherein the battery management system communicates with the bidirectional DC / DC converter through a CAN bus, and cooperatively controls an energy flow path. The method has the advantages that the energy utilization efficiency is improved, the dynamic response capability is enhanced, and the cruising ability is prolonged.

The invention relates to the technical field of ship safety, in particular to a ship navigation monitoring management system and method based on edge computing, and the system comprises seven cooperation modules: a data collection module synchronously obtains ship multi-source data, and a processing storage module achieves the data compression, marking and storage. The encryption security module completes full-process AES-256 encryption through a hardware encryption chip, the dual-power supply module guarantees stable power supply, the satellite positioning module obtains accurate positioning through Beidou / GPS dual modes, the self-inspection maintenance module monitors faults in real time, and the AI edge calculation unit achieves channel object recognition, track analysis and violation warning through a deep neural network model. According to the method, closed-loop processes of data acquisition, encryption, processing, intelligent analysis and fault handling are completed through module cooperation; the invention aims to solve the problems of high monitoring delay, insufficient data security, unreliable power supply and the like of the existing system.

The invention provides a hybrid power system for a dual-mode patrolling bomb and a use mode of the hybrid power system, and belongs to the technical field of aviation power. The problem that an existing patrolling bomb power system is difficult to meet the requirements for long-time cruising and instantaneous explosion acceleration at the same time is solved. The system comprises a hydrogen supply mechanism, a hydrogen peroxide supply mechanism, a fuel cell, a motor and a combustion chamber, the hydrogen supply mechanism is connected with an anode of the fuel cell, the fuel cell is connected with the motor, the motor is connected with a propeller, and the hydrogen peroxide supply mechanism is provided with two supply lines. The first supply line is connected with a cathode of the fuel cell through the hydrogen peroxide decomposition unit, the second supply line is connected with the combustion chamber, a first flow regulating valve is arranged on the first supply line, a second flow regulating valve is arranged on the second supply line, a grain is arranged in the combustion chamber, and the grain is spontaneous combustion fuel with a metal framework. The combustion chamber is connected with the exhaust nozzle. The hybrid power device is mainly used for providing hybrid power for the dual-mode patrol ammunition.

A guided munition and associated method, which may be implemented by a computer program product, is provided. The guided munition may have an annular folded optic (AFO), wherein at least a first portion of the AFO may be, at least partially, on a wing of the guided munition. The AFO may be transversely segmented to enable the AFO to move between a collapsed position and a deployed position. There may be a first segment and a second segment that selectively interface in response to at least one instruction to move the first segment and the second segment closer to each other. There may be an interface plane, wherein the interface lies along the interface plane, that intersects a central axis at a location outside the body of the AFO. This allows for a dual mode seeker with both the SAL and an image sensor located behind a warhead.

The invention belongs to the technical field of ship electric propulsion, and particularly relates to a ship electric propulsion dual-mode control system with a multi-redundancy architecture, and the system comprises the steps: firstly, accurately obtaining the actual rotating speed and electromagnetic torque of a motor through a sensor group with redundancy configuration and two-out-of-three voting logic; secondly, calculating load disturbance intensity by utilizing time domain difference analysis, and calculating the deviation between the actual torque and the theoretical hydrodynamic torque in combination with a propeller characteristic coefficient, so as to generate a load anomaly index; generating a dynamic flexible factor with a damping characteristic based on the index by using a Sigmoid function and low-pass filtering logic; and finally, carrying out weighted fusion on output instructions of the rotating speed mode and the torque mode according to the factor. According to the method, normal acceleration and sea wave disturbance can be accurately distinguished, smooth seamless switching between a static water speed stabilization mode and a severe sea condition machine protection mode is achieved, and control oscillation and mechanical damage are effectively avoided.

The invention relates to a self-balancing bicycle robot multi-task path planning method, which belongs to the technical field of mobile robot autonomous navigation, and comprises the following steps: constructing an environment grid model containing static obstacle information, and fusing obstacle repulsive force and a Voronoi diagram skeleton to guide and generate an environment safety potential field; receiving a multi-task target point sequence, and calculating an optimal cut-in course angle of each target point; performing global path search in a three-dimensional state space by adopting a forward-backward bimodal primitive to generate a global path meeting incomplete kinematics constraints; the local planning adopts an improved dynamic window algorithm, dynamic stability verification and pruning are carried out in the space of the linear speed and the front wheel steering angle, and an optimal instruction is selected. The technical problems of discontinuous path, dynamic instability, poor obstacle avoidance safety and the like during multi-task operation of the self-balancing bicycle robot are solved, and the operation safety, smoothness and efficiency of the robot in a complex unstructured environment are effectively and remarkably improved.

This application relates to the field of machine tool technology and discloses a dual-mode hole-making machine tool and a hole-making method. The dual-mode hole-making machine tool includes a bed assembly, a crossbeam assembly, a slide assembly, a spiral milling and reaming unit, and a water-guided laser hole-making unit. During operation, after the equipment starts, the crossbeam assembly moves along the first direction of the bed assembly, and the slide assembly moves along the second direction of the crossbeam assembly to complete X and Y axis positioning; it acquires workpiece material, hole diameter, and depth-to-diameter ratio parameters to determine the processing mode. When hole making is required separately, the water-guided laser hole-making unit feeds along a third direction to complete the processing; when reaming is required separately, the spiral milling and reaming unit feeds along a third direction to complete the processing; when combined processing is required, the water-guided laser first creates the initial hole, maintaining the work position and posture unchanged, and then switches to spiral milling and reaming to create the final hole.

The utility model discloses a dual-mode iron core lamination device. The dual-mode iron core lamination device comprises a base station, a portal frame, an iron core gripper and a longitudinal movement driving device, a first lamination area and a second lamination area are symmetrically arranged on the base table in the width direction, and an iron core bearing plate and more than two iron core fixing plates are detachably arranged on the first lamination area and the second lamination area respectively; the portal frame stretches across the base table in the length direction and comprises a horizontally-arranged cross beam, and the iron core gripper is movably arranged on the cross beam. The longitudinal movement driving device comprises two telescopic driving parts, and the driving parts are connected with the bottoms of the supporting columns through transmission plates so as to drive the portal frame to move in the width direction, so that the iron core tongs move between the first lamination area and the second lamination area. According to the utility model, the iron core lamination efficiency and precision can be improved.

Provided is a technique for preventing an inrush current from flowing through a snubber capacitor. A dual inverter system for an open winding motor includes: a motor; a first inverter and a second inverter; a positive electrode switching circuit and a negative electrode switching circuit disposed between the second inverter and the battery; and a control device capable of switching a driving mode of the motor between a single mode in which the two switching circuits are turned off and only the first inverter is switched, and a dual mode in which the two switching circuits are turned on and the first inverter and the second inverter are switched. The second inverter has a snubber circuit that electrically connects the positive electrode terminal and the negative electrode terminal and is provided with a snubber capacitor, and when the driving mode of the motor is switched from a single mode to a dual mode, the control device closes only the negative electrode switching circuit in a state in which the positive electrode switching circuit is kept open and only closes the negative electrode switching circuit in a state in which the positive electrode switching circuit is kept open. Therefore, the buffer capacitor is pre-charged.

The present application relates to a kind of dual-mode quadcopters, including fuselage, circular arc shell, short wing of circular arc shell, long wing of circular arc shell, short wing of fuselage and long wing of fuselage;For the commonness of traditional four rotors and four propeller fixed wing all have four sets of propeller power system, and the relative position difference of four sets of propeller "X" type arrangement and "one" type parallel, design two groups of mirror image symmetry long half wing and short half wing, adopt single wing rotation switching mode, mainly meet the relative position of four rotors and four propeller fixed wing airfoil and propeller.The application is repeatedly switched between fixed wing and four rotors, compared with the configuration switching mechanism of tilt rotor aircraft, it is more simple and reliable, control is more stable;Compared with composite quadcopter, it does not need to set special lifting power device, and load utilization rate is higher.

The invention provides a dual-mode lens with a variable aperture. The dual-mode lens sequentially comprises an external lens and a main shooting lens from an object side surface to an image side surface along an optical axis direction, the external lens is composed of a first lens group and a second lens group. The first lens group has negative focal power; the first lens group is composed of a first lens, a second lens and a third lens. The first lens has negative focal power; the second lens group consists of a fourth lens and a fifth lens; the fourth lens has negative focal power; the main camera lens is composed of a third lens group and a fourth lens group. The fourth lens group has positive focal power or negative focal power; the third lens group is composed of a sixth lens, a seventh lens, an eighth lens, a ninth lens and a tenth lens. The sixth lens has positive focal power; the fourth lens group is composed of an eleventh lens, a twelfth lens and a thirteenth lens. According to the invention, clear imaging can be realized in the range of F # 1.77-F # 4.0, the main camera provides a field angle greater than or equal to 90 degrees, and the external lens provides a field angle greater than or equal to 150 degrees.

The invention discloses an intelligent crushing cavity adjusting and cleaning control method and device, and belongs to the technical field of mining machinery automatic control. On the basis of the PLC, displacement, torque and humidity sensor data are fused, high-precision adjustment of the diameter of + / -0.1 mm of the crushing cavity is achieved by adopting position-torque dual-mode control, soft torque control is automatically switched to during overload, and fine adjustment and protection are completed; a periodic cavity diameter fine adjustment strategy is introduced for wet and sticky materials, and blocking is effectively prevented. Cleaning control is triggered as required, the air speed and cleaning time of the air knife are adaptively adjusted according to the size of the cavity diameter and the adhesion degree, and the cleaning effect is verified through torque feedback. The system further has the functions of fault diagnosis and automatic reset, the intelligent level, operation stability and crushing efficiency of equipment are remarkably improved, and energy consumption and manual intervention are reduced.

The utility model discloses a controllable load access device based on dual mode communication, including input terminal, a plurality of output terminals and a plurality of cable, the number of output terminal is consistent with the number of cable, input terminal is equipped with input terminal casing and with the casing extension of input terminal casing integral moulding, the built -in dual mode communication circuit of input terminal casing, the side of input terminal casing away from the casing extension is equipped with two input terminal electrode, and input terminal electrode and dual mode communication circuit electric connection, and the casing extension is equipped with a plurality of symmetrical distribution's extension part protruding, and extension part protruding and casing extension integral moulding, the utility model discloses a controllable load access device based on dual mode communication, and its beneficial effect lies in, through the input terminal of integrated dual mode communication circuit and the output terminal with independent switch, realizes the flexible controllable power supply of multichannel load.

An apparatus for a surface acoustic wave (SAW) apparatus having a dual mode (DMS) resonator configuration with near-synchronous operation is disclosed. One aspect includes a piezoelectric material, a first reflector disposed over the piezoelectric material, a second reflector disposed over the piezoelectric material, and a plurality of interdigital transducers (IDTs) disposed over the piezoelectric material and positioned between the first reflector and the second reflector, wherein a pitch of the electrode fingers in the first reflector and the second reflector is greater than a pitch of the electrode fingers in the plurality of interdigital transducers, and wherein a variation in the pitch of the electrode fingers in the plurality of interdigital transducers is less than 3% across the plurality of interdigital transducers.

The invention discloses a dual-mode redundancy brake-by-wire system, and relates to the technical field of vehicle braking and safety control. The dual-mode redundancy brake-by-wire system is characterized in that the oil outlet end of an oil supply pipeline is communicated with a first reversing valve; a control oil path of the driving pressure control mechanism comprises a first pressure control oil path and a second pressure control oil path, a proportional pressure reducing valve is arranged on the first pressure control oil path, and an oil outlet end of the first pressure control oil path is communicated to an oil inlet of a shuttle valve and is communicated to a corresponding driving brake through the shuttle valve; the second pressure control oil way is provided with an oil inlet pipeline and an oil drainage pipeline, an oil inlet switch valve is arranged on the oil inlet pipeline, an oil return switch valve is arranged on the oil drainage pipeline, and the oil inlet end of the oil drainage pipeline and the oil outlet end of the oil inlet pipeline are connected to the other oil inlet of the shuttle valve in parallel and communicated to the corresponding service brake through the shuttle valve. The device is used for braking and ABS sliding control under the working conditions of low attachment, heavy load and the like in an underground coal mine, and it is guaranteed that fault operation can be achieved, and safety and reliability are achieved.

The invention discloses a positive pressure type air respirator full face mask with a dual-mode connector, and relates to the field of respiratory protection equipment, the positive pressure type air respirator full face mask comprises a full face mask main body and an air supply connector seat communicated with the full face mask main body, and the full face mask main body is further communicated with a chemical oxygen connector seat; the full face mask body is provided with a connecting mechanism used for being connected with a chemical oxygen self-rescuer, a lever support is fixed in the chemical oxygen connector seat, a sealing assembly used for sealing an expiration opening of the chemical oxygen connector seat is arranged on the lever support, and a stirring mechanism used for driving the sealing assembly to move is arranged in the chemical oxygen connector seat. The double-mode connector function is achieved, the double-mode connector can be conveniently connected with and detached from the chemical oxygen self-rescuer, the technical effect that the expiration opening is effectively sealed and opened is guaranteed, and the reliability and practicability of respiratory protection are improved.

This invention provides a dual-mode electric butterfly door hinge system and a vehicle having the same, comprising: a fixed plate, a portion of which is connected to the vehicle body; a movable plate, a first end of which is connected to the fixed plate, the movable plate being rotatably disposed relative to the fixed plate to have at least one first working position and one first initial position; and a door connecting plate, one end of which is connected to the second end of the movable plate, the first end and the second end of the movable plate being disposed at a preset angle, a portion of which is connected to the door, the door connecting plate being rotatably disposed relative to the movable plate to have at least one second working position and one second initial position. This invention solves the problem that existing door hinges can only open in a single mode and cannot meet the diverse door opening needs of users in different scenarios.

The application adopts the following technical scheme: a multifunctional radio frequency bipolar forceps for hemorrhoid treatment, comprising a handle one, a handle two, a forceps opening electrode assembly one, a forceps opening electrode two, a connecting pin and a power line; the forceps opening electrode assembly one is assembled at the front end of the handle one, the forceps opening electrode two is assembled at the front end of the handle two, the forceps opening electrode assembly one and the forceps opening electrode two are rotationally connected through the connecting pin, and the power line is fixedly connected to the tail of the handle one to transmit radio frequency energy to the whole instrument; the forceps opening electrode assembly one comprises a forceps opening electrode one, an insulating sleeve and a connecting rod, the insulating sleeve is fixedly sleeved on the outside of the connecting rod, the connecting rod extends to the inside of the handle one and is electrically connected with the power line to transmit radio frequency energy to the forceps opening electrode one. The application realizes one-stop precise treatment of mixed hemorrhoids, greatly improves the operation efficiency and safety through the integrated structure design, the integrated external hemorrhoid shearing and internal hemorrhoid ablation function, the mechanical-electrical dual mode switching and the multi-scene ablation design.

A memory device includes: a memory cell, a reference memory cell, and a dual mode inverter-based write termination circuit including a write driver for writing data to the memory cell, the dual mode inverter-based write termination circuit detecting the completion of writing data to the memory cell and terminating the operation of the write driver, and also sequentially receiving an output signal of the reference memory cell and an output signal of the memory cell through one input node to sense and amplify the data stored in the memory cell.

The utility model discloses a combined brooch which comprises an installation plate, the front face of the installation plate is fixedly connected with a brooch frame and a buckle respectively, a sliding opening is formed in the top of the brooch frame in a penetrating mode, the inner side of the sliding opening is movably connected with a buckle needle, and the outer side of the buckle needle is fixedly connected with a limiting plate. A reset spring is fixedly connected to the top of the limiting plate, a clamping opening is formed in one side of the buckle, a clamping column is fixedly connected to the back face of the mounting plate, a decoration ring is clamped to the back face of the mounting plate through the clamping column, a through opening is formed in the front face of the decoration ring, and a decoration leaf is fixedly connected to the outer side of the decoration ring. A clamping opening is formed in the front face of the decorative leaf. Through the arrangement of the mounting plate and the clamping column, a user can conveniently disassemble and assemble the brooch, so that the brooch can be combined in dual modes.

The application relates to a dual-mode bag material winding device which comprises a rack, two winding roller groups arranged on the rack, a pay-off roller, a driving roller, an auxiliary roller and a plurality of guide rollers which are rotationally connected to the rack, winding roller cylinders are arranged on the driving roller and the auxiliary roller, the driving roller abuts against the outer surface of the winding roller cylinder, drive assemblies corresponding to the two driving rollers are arranged on the rack, the drive assemblies are used for driving the corresponding driving rollers to rotate, a synchronous roller is rotationally connected to the rack, first gear wheels are arranged on the two sides of the synchronous roller along the axial direction, the ends of the two driving rollers are provided with second gear wheels which are engaged with the first gear wheels, and a clutch assembly is arranged on the rack and used for controlling the engagement and separation of the first gear wheels and the second gear wheels. The application has the effect of improving the applicability of the winding device.

The application relates to a pre-adjustable dual-mode trimming circuit. The current trimming main unit comprises a current trimming main unit and a trimming reset control signal generation unit connected with the current trimming main unit; when current trimming is carried out based on the current trimming unit, pre-trimming is first carried out by using the current trimming main unit, and post-trimming is carried out after the pre-trimming; when the post-trimming is carried out, target trimming data is loaded into the current trimming main unit based on a current trimming target state signal, and a corresponding current trimming target state signal is output through the current trimming unit; after the current trimming unit is powered on again, the trimming reset control signal generation unit generates a trimming reset control signal, so that the current trimming main unit configures the generated trimming state signal as the corresponding current trimming target state signal under the trimming reset control signal. The application can effectively improve the output precision of the trimmed object after trimming and the flexibility of the trimming operation.

The application discloses a kind of dual-channel limited space signal transmitting system and method, using MENS micro electro mechanical assembly oscillator design to obtain the self-excitation vibration ability of MHz, GHz different frequency by positive feedback conversion to alternating current signal, real-time analysis is carried out to limited space physical signal sine wave conduction condition, intensity simultaneously, so as to have MHz / GHz dual mode, strong anti-interference ability, signal is not easy to superimpose, strong penetration ability and other characteristics, improve the bandwidth of communication signal emission, anti-superposition, filtering and other capabilities, solve the problem that the principle of traditional signal transmitter is simple, mode is single, and anti-interference ability is poor.

The application relates to the field of semiconductor packaging and discloses a dual-mode cooperative high-aspect-ratio glass via metallization integrated process, which comprises the following steps: preparing a high-aspect-ratio via by laser modification and wet etching on a glass substrate; preparing a metal seed layer on the surface of the substrate, and hot-press bonding two pieces of substrates to form a stacked structure by using a light-decomposing bonding layer; placing the stacked structure in high-pressure carbon dioxide for pre-lubricating treatment, and then simultaneously applying a pulse direct current and a radio frequency power source for dual-mode cooperative electroplating; after surface polishing, irradiating the bonding layer with ultraviolet light to separate the substrates and perform annealing. The application changes the electric field distribution by means of double-glass stacking, replaces air with high-pressure gas to eliminate the gas-liquid interfacial tension of micropores, and breaks the ion mass transfer barrier with the help of a radio frequency field, so that the problems of bubble blockage and concentration difference polarization in the high-aspect-ratio via are solved, efficient and dense filling of metal in the deep hole is realized, and the substrates can be separated without residual glue and damage.