164results about How to "Work reliably" patented technology

The anti-slip device and tubing string are characterized by comprising an integrated U-shaped injection valve, an integrated U-shaped injection control valve, tubing, etc. Several integrated U-shaped injection valves spaced several meters apart are connected to the tubing string, and multiple integrated U-shaped injection control valves spaced several meters apart are connected to the tubing string, forming the anti-slip device and tubing string. Within the anti-slip device and tubing string, there are several U-shaped injection ports and multiple channels, as well as several upward-vertical-downward-vertical-upward U-shaped channels and gas-liquid mutually sealed end faces, forming a gas-driven liquid flow pattern. This prevents liquid backflow and slippage while retaining the rising gas. The channels of the integrated U-shaped injection control valve are used to introduce gas from outside the integrated U-shaped injection control valve into it to reduce the density of the fluid passing through it. This achieves the purpose of lifting, producing, and discharging deep-well liquids with lower gas pressure and volume, preventing liquid slippage and backflow, and improving the efficiency of gas lift liquid production and discharge.

The invention discloses a flexible transmission structure of a circular cooler. Comprising a flexible base, a driving component is arranged on the flexible base, and a transmission pin gear is arranged on an output shaft of the driving component. Self-adaptive adjustment of the driving component in the radial direction of the rotary body can be achieved, so that tight meshing of the transmission pin gear and the rotary body pin teeth is ensured. The device is high in impact load resistance, reliable in work, compact in structure and convenient to install and maintain.

The application relates to a full-mechanical automatic tracking self-balancing variable current voltage stabilizing device and a use method thereof, which comprises a main pipe and two gear connecting rod combined mechanisms arranged on the two sides of the main pipe respectively; the gear connecting rod combined mechanism comprises a bellows, a pressing plate pressed on one end of the bellows far from a water inlet pipe, and a pressing rod pressed on the hose; one end of the bellows is sealingly connected with the pipe wall of the water inlet pipe, the other end is sealingly fixedly connected with the pressing plate, a supporting rod extending away from the bellows is fixed on the pressing plate, a spring is connected with one end of the supporting rod far from the pressing plate, and the other end of the spring far from the supporting rod is fixedly arranged; the gear connecting rod combined mechanism further comprises a driving gear and a driven gear which are mutually meshed. The application changes the flow area of the hose through the gear transmission mechanism of each connecting rod and the expansion and contraction of the bellows when the water pressure changes, so that the flow is stored and the pressure is increased when the pressure is low, the municipal end water pressure is prevented from being lower than the minimum allowable value due to excessive secondary water supply and water taking, no external power is needed, and the automatic tracking and self-balancing functions are achieved.

The invention relates to the technical field of metal materials, and discloses a shape memory alloy film and a preparation method and application thereof. The shape memory alloy film comprises the following components: 50-55 at.% of Ni, 40-45 at.% of Ti, 3-5 at.% of Cu and 2-4 at.% of M, and M is selected from one or more of Zr, Hf and Nb. The shape memory alloy film has remarkable superelasticity, the recoverable strain of the shape memory alloy film can reach 8% or above, meanwhile, the compressive yield stress exceeds 1.5 GPa, and the shape memory alloy film shows excellent cycle stability. The preparation method is simple in process and high in controllability, a new scheme is provided for solving the problem of unstable performance of an existing NiTi-based film, and the preparation method is particularly suitable for high-performance micro devices such as a micro electro mechanical system.

The present application relates to the technical field of banana picking equipment, and discloses a radial self-adaptive device for banana mechanical carding, wherein a mounting plate with a through hole is connected to a supporting table through a lifting mechanism, a plurality of cutter radial adjustment devices are arranged on the mounting plate in the circumferential direction of the through hole, the cutter radial adjustment device comprises a support frame fixed to the mounting plate, a sliding table is fixed to the top of the support frame, the sliding table is provided with a sliding groove matched with a sliding block, the front end of the sliding block is fixed to a cutter, the rear end of the sliding block is hinged to a connecting rod, the other end of the connecting rod is hinged to a swing rod, the other end of the swing rod is hinged to the support frame, a pressing rod is fixed to the end of the swing rod away from the connecting rod, a shaft rod is arranged below the pressing rod, a cam set is slidably arranged on the shaft rod, an elastic part is arranged on the support frame and used for driving the end of the pressing rod to abut against the cam set, and a sliding positioning mechanism is arranged and used for driving the cam set to slide and position on the shaft rod. The device can realize radial self-adaptive adjustment of the cutter to banana stems with different diameters, and has the advantages of simple and quick adjustment, high practicability and high carding efficiency.

This application discloses an electrostatic chuck voltage filtering method, controller, and electrostatic chuck system. The method includes: acquiring voltage sampling data of the electrostatic chuck; determining the target operating condition type of the electrostatic chuck based on the voltage sampling data; adjusting a preset Kalman filter based on the target operating condition type to obtain an adjusted Kalman filter; and filtering the voltage sampling data based on the adjusted Kalman filter. This application can identify the target operating condition type of the electrostatic chuck and adaptively adjust the filtering parameters of the Kalman filter based on the target operating condition type, so that the driving voltage output by the Kalman filter quickly approaches or matches the actual driving voltage, thereby controlling the operation of the electrostatic chuck in a timely, fast, and high-precision manner, ensuring that the electrostatic chuck can operate reliably, stably, and with high precision.

The invention belongs to the technical field of electronic countermeasures, and particularly relates to a distributed jammer closed-loop coherent control method based on synthesis effect feedback, which comprises the following steps of: modeling signal coherent synthesis efficiency, acquiring coherent synthesis efficiency of a jammer A and a jammer B under different phase differences under an error-free condition, and calculating the coherent synthesis efficiency of the jammer A and the jammer B; establishing a phase difference-coherent combination efficiency mapping relation reference database; a-B jammer phase correction is carried out; and jammer A-C correction is carried out. According to the method, the robustness and the engineering practicability are remarkably improved; the cost, the power consumption and the complexity are effectively reduced; according to the invention, by taking a synthesis effect as a guide, the harsh requirement on the absolute space-time precision of a single node is relaxed, common commercial devices with lower cost and lower precision are allowed to be used for construction, and meanwhile, the complexity of initial calibration and setting is simplified, so that the hardware cost, power consumption and deployment and maintenance difficulty of the whole distributed mode are greatly reduced; and the dynamic self-correction and long-term stability capabilities are endowed.

The utility model belongs to the technical field of transformers, and discloses a transformer oil storage assembly and a transformer, the transformer oil storage assembly comprises an oil tank and an oil storage mechanism, the oil tank is provided with an oil storage cavity, the oil tank is provided with a temperature detection piece, the temperature detection piece is used for detecting the temperature of oil in the oil storage cavity, and the oil storage mechanism comprises a first oil conservator and a second oil conservator. The first oil conservator and the second oil conservator are arranged on the oil tank, the first oil conservator is communicated with the oil storage cavity through a first oil conveying pipe, a switch valve is arranged on the first oil conveying pipe, and the second oil conservator is communicated with the oil storage cavity through a second oil conveying pipe. The transformer comprises the transformer oil storage assembly and further comprises a transformer body, and the oil tank is fixedly connected with the transformer body. According to the transformer oil storage assembly, compensation oil supply can be achieved for the oil tank of the transformer, and the temperature of oil in the oil tank is effectively prevented from being too high.

This invention discloses a wellbore plugging device and its operating method. The device is used to plug the casing of oil and gas wellheads under high-pressure or ultra-high-pressure testing conditions. It includes a central tube with an upper end and a lower end connected to its upper and lower ends, respectively. From the upper end to the lower end, a first conversion assembly, a sealing assembly with at least one sealing rubber sleeve, an anchoring assembly, and a second conversion assembly are sequentially fitted onto the central tube between the upper and lower ends. The first and second conversion assemblies are threadedly connected to the central tube. When the central tube is rotated clockwise or counterclockwise, the first and second conversion assemblies move towards or away from each other along the axis of the central tube. A volumetric tube is provided between the sealing assembly and the central tube, and is fixedly connected to the central tube. The upper end of the volumetric tube and the lower part of the first conversion assembly cooperate to form a bypass structure. The wellbore plugging device of this invention is reliable in operation and can withstand high-pressure sealing.

This application provides a motor load adaptive adjustment method based on analog circuits, relating to the field of motor control technology, including the following steps: converting the load current in the motor circuit into a first voltage signal, and generating a mode selection signal based on the amplitude and rate of change of the signal; wherein, when the amplitude of the first voltage signal exceeds a first threshold and its rate of change exceeds a second threshold, the mode selection signal indicates a dynamic response mode; otherwise, the mode selection signal indicates a steady-state adjustment mode; when the indication is a steady-state adjustment mode, the first voltage signal is introduced into a first path, which includes a first error amplifier with a first proportional coefficient; when the indication is a dynamic response mode, the first voltage signal is introduced into a second path, which includes a second error amplifier with a second proportional coefficient greater than the first proportional coefficient; generating and outputting a motor drive signal according to the adjustment signal output from the selected path.

The utility model provides a kind of underwater high-precision servo self-stabilizing motion device, including outer orientation rotating assembly, inner orientation rotating assembly, inner pitch rotating assembly, servo control driving assembly and base cylinder, wherein outer orientation rotating assembly is mainly used to isolate the influence of external environment to inner frame system and load, ensure the accurate control of stable loop;Inner orientation rotating assembly drives instrument to realize inner orientation rotation in limited angle range, and inner pitch rotating assembly drives instrument to realize pitch rotation in limited angle range;Device adopts two-axis three-frame structure, designs stable transmission mechanism and high-precision control system, and has good stability, high control precision, strong load and adaptability, solves the technical problems such as structure insensitivity, insufficient stability and poor adaptability, and realizes underwater high-precision coordinated motion, fast and accurate aiming and tracking target, obtains stable, clear target image and video information, and can be widely applied in optoelectronic stable platform, underwater robot, underwater exploration operation and other fields.

The utility model provides a solar energy chestnut drying equipment. Solar energy chestnut drying equipment includes: the drying box of top fixed mounting has solar energy panel, drive gear shaft, drive gear shaft rotates the installation in drying box, synchronous gear shape area, synchronous gear shape area is equipped on drive gear shaft, and fixed mounting has support block, holds the disc, holds the disc for placing chestnut setting between synchronous gear shape area, and with support block is contacted, hot -blast pipe, hot -blast pipe fixed mounting is in drying box, is used for introducing hot blast to drying box, exhaust pipe, exhaust pipe fixed mounting is in hot -blast pipe, and extends to drying box. The utility model provides solar energy chestnut drying equipment has a plurality of air outlet, increases hot blast guiding mechanism simultaneously, improves the evenness of hot blast advantage.

This invention discloses a fiber Bragg grating level sensor based on liquid pressure conversion, comprising a fiber Bragg grating demodulator, a 2×1 fiber coupler, a transmission fiber, and a sensing unit. The sensing unit consists of a strain-sensing fiber Bragg grating, a temperature-compensated fiber Bragg grating, a sealed cylinder, a support beam, a pressure block, a pressure tension frame, a sealing membrane, and a stop. The pressure block and the pressure tension frame convert liquid level changes into longitudinal displacement changes, causing axial strain in the strain-sensing fiber Bragg grating. This results in a drift in the center wavelength of the strain-sensing fiber Bragg grating, and the liquid level height of the container is measured by monitoring this wavelength change. This invention eliminates the influence of temperature on the liquid level measurement results through a temperature-compensated fiber Bragg grating, offering advantages such as a large measurement range, good practicality, simple structure, low cost, good stability, high sensitivity, and safety and reliability, meeting the needs of measuring liquid levels in large storage tanks and other applications.

This invention discloses an automated terminal equipment operation status monitoring device and method, belonging to the field of power distribution automation equipment monitoring technology. The device consists of an MCU, a current signal acquisition module, a voltage signal acquisition module, a temperature acquisition module, an A / D converter module, a power supply module, an alarm module, a communication recording module, a data storage module, and a display module. Each module is electrically connected according to a preset configuration to form a complete monitoring architecture. Based on this device, the method sequentially executes the following steps: system initialization self-calibration, multi-source signal synchronous acquisition and preprocessing, fault judgment threshold dynamic correction, multi-dimensional feature fusion fault analysis, hierarchical linkage response and data partitioning storage, and cyclic monitoring. This invention improves the accuracy of fault detection and analysis, can quickly locate faults and respond hierarchically, significantly shortens repair time, effectively improves the operation and maintenance management capabilities of terminal equipment, and ensures the safety of power distribution networks and equipment.

The invention discloses a three-dimensional motion speed estimation method and system based on optical flow and depth information, and the method comprises the steps: synchronously obtaining a color image and a depth image of continuous frames through a depth camera, carrying out the graying processing of the color image, and delimiting a region of interest (ROI) on an image plane, the color image and the depth image have a pixel-level alignment relationship; candidate angular points are extracted from the ROI through an angular point detection algorithm, and a feature point set with uniform spatial distribution is obtained through screening; tracking feature points in two adjacent frames of color images by adopting an optical flow tracking algorithm, and solving to obtain a two-dimensional pixel displacement vector of each feature point on an image plane; and clustering the two-dimensional pixel displacement vectors by adopting a density clustering algorithm to obtain an effective feature point set. According to the invention, the problem of distance-related errors caused by lack of depth modeling in traditional two-dimensional optical flow velocity measurement is solved, and stability and high precision can be maintained in scenes of non-orthogonal motion, far and near distance change and the like.

This invention relates to the field of touch detection circuit technology, and more particularly to a high-sensitivity touch detection circuit, comprising: a touch analog circuit, a touch digital circuit, and a CPU processor. The touch digital circuit includes a counter circuit, a latch circuit, a subtractor circuit, and a comparator circuit. This invention uses a simple digital detection circuit to detect touch events and reduces false alarms or missed detections by comparing with a configured threshold, making the touch detection circuit more reliable and meeting the higher requirements of next-generation MCUs for touch detection. It can be applied in MCU systems, suitable for 32-bit and 8-bit MCU series products. Charge is transferred from on-chip I / O capacitors to on-chip capacitors. When a touch action occurs, the capacitance for charge transfer increases, leading to a decrease in the number of transfers. The digital circuit determines whether a touch event has occurred by detecting the number of transfers.

The application discloses a payment service processing method, device and equipment, and is applied to a payment receiving device. The method comprises the following steps: performing near-distance connection with a cash register device, and establishing a cross-device link with a remote payment service system through the cash register device based on the near-distance connection; establishing a payment main link with the payment service system through a mobile communication network; when receiving a payment request initiated by a user for the payment receiving device, selecting a target link from the cross-device link and the payment main link according to the result obtained by performing network quality analysis on the cross-device link and the payment main link; and performing payment service interaction with the payment service system through the target link according to the payment request.

This utility model relates to the field of electrical connectors that allow relative movement between coupled components, such as floating or automatic mating, and particularly to a floating socket and a floating connector. The floating socket includes a floating insulator and socket terminals. The socket terminals include a plug end, a fixed end, and a floating portion located between the plug end and the fixed end. The plug end is fixed to the floating insulator. The fixed end of the socket terminal is connected to a fixing seat for fixing the floating socket. The fixing seat includes a socket housing and two or more insulating blocks fixed relative to the socket housing. The fixed end of the socket terminal is assigned to different insulating blocks and fixed by the corresponding fixing blocks. This utility model's floating socket solves the problem of low yield caused by the difficulty in manufacturing the fixed insulator in existing floating sockets.

The utility model provides a hydrogen-doped pulverized coal mixed combustion device and a hydrogen-doped pulverized coal mixed combustion system. The hydrogen-doped pulverized coal mixed combustion device comprises a hydrogen distribution device, a pulverized coal conveying device, a fuel mixing device and a combustion device, the hydrogen distribution device and the pulverized coal conveying device are arranged in parallel, and an inlet of the hydrogen distribution device and an inlet of the pulverized coal conveying device are communicated with a hydrogen storage tank and a pulverized coal storage bin through pipelines respectively. Outlets of the hydrogen distribution device and the pulverized coal conveying device communicate with the fuel mixing device through pipelines so that hydrogen and pulverized coal can be mixed to form a gas-solid mixture, and the combustion device combusts the gas-solid mixture. According to the hydrogen-doped pulverized coal mixed combustion device, hydrogen and traditional energy are combined and utilized in the industry, and in the combustion process of the hydrogen-doped pulverized coal, emission of pollutants can be reduced, and sustainable low-carbon development of economy is promoted.

This disclosure provides a photosensitive component and terminal device, relating to the field of electronic technology. The photosensitive component includes a photosensitive element and a light guide; the light guide includes a light-inlet surface and a light-outlet surface; the light-inlet surface and the light-outlet surface are located at two opposite ends of the light guide, allowing light to enter along the light-inlet surface, be transmitted through the interior of the light guide, and then exit along the light-outlet surface; the photosensitive element is located on the side containing the light-outlet surface; the photosensitive element has a photosensitive effective area, the area of ​​the light-outlet surface is greater than or equal to the area of ​​the photosensitive effective area, and the entire photosensitive effective area is located within the light-outlet surface, with the light emitted from the light-outlet surface covering the entire range of the photosensitive effective area. The photosensitive component of this disclosure allows the light emitted from the light-outlet surface to cover the entire range of the photosensitive effective area, ensuring that the photosensitive effective area of ​​the photosensitive element directly receives 100% of the external ambient light. Even when the photosensitive element is not aligned with the light-transmitting gap, it can still receive external ambient light with a sufficiently large field of view, guaranteeing the reliable operation of the photosensitive element.

This invention relates to the field of capacitor aging discharge technology, and more particularly to a discharge device for secondary aging of aluminum electrolytic capacitors. The device includes a discharge cabinet, a fixed base fixedly connected inside the cabinet, a fixed sleeve fixedly connected to the fixed base, a turntable rotatably connected through the fixed sleeve, two symmetrically rotatably connected flip frames on the turntable, a capacitor positioning adjustment mechanism fixedly connected to the flip frames, and two symmetrically rotatably connected push-pull mechanisms on the turntable. Each push-pull mechanism has a capacitor pin correction mechanism. By using the capacitor pin correction mechanism, the pins can be automatically corrected, ensuring precise alignment with circuit board holes, reducing assembly errors caused by pin tilting or bending, and improving insertion accuracy. The capacitor pin correction mechanism effectively improves production efficiency and capacitor performance, ensuring stable and reliable operation of the capacitor in the secondary aging discharge device.

The utility model discloses a kind of flattening dies, including upper die plate, middle plate and lower die;The lower surface of the upper die plate is sequentially provided with first forming head and second forming head;First through hole and second through hole are vertically provided on the middle plate;The first forming head can be inserted into first through hole, and the second forming head can be inserted into second through hole;Forming hole is provided on the lower die, and the second forming head can be inserted into forming hole;The lower part of the first forming head is provided with first forming part;The first forming head is used to bend the vertical flanging of unformed product into acute angle to form first time forming product;The lower part of the second forming head is provided with second forming part;The second forming part is used to flatten the acute angle flanging of first time forming product to form second time forming product;The utility model bends the vertical flanging of unformed product into acute angle first, then flattens the acute angle flanging;The utility model is stable and reliable, and can prevent scratch product simultaneously.

This invention discloses a honeycomb box with a moisture-proof bottom structure, relating to the field of honeycomb box technology. It includes a box body and a cover made of honeycomb cardboard. A bottom plate is provided at the bottom of the box body, comprising a support portion, a buffer portion, and a base plate. The support portion is used to close and support the bottom of the box body. The base plate is made of a rigid material and forms the base for placing the box. The buffer portion is located between the support portion and the base plate. The buffer portion includes multiple buffer blocks made of honeycomb cardboard and spaced apart. A compensation component is also provided inside the bottom plate, including an elastic component and a locking component. This honeycomb box with a moisture-proof bottom structure, through a triggerable mechanical compensation mechanism, automatically activates the rigid support after detecting that the box body has softened due to moisture, thus automatically switching to a wet-state strengthening mode. This effectively solves the core problem of the rapid strength loss of traditional cardboard boxes in humid environments.

The utility model discloses a novel feed hopper sealing structure for household garbage power generation, relates to the technical field of household garbage power generation, aims to solve the problems that an existing sealing structure is prone to being blocked and abraded and inconvenient to maintain, and comprises a feed hopper, an upper sealing plate and a lower sealing plate. The inclination degrees of the front plate and the rear plate are different. The two groups of upper sealing plates are symmetrical to a top opening of the feeding hopper, are matched with upper reset grooves through traction columns and guide columns, and are reset by upper reset springs to realize top sealing; according to the feeding hopper sealing structure, through double sealing and cooperation of all parts, the problems that an existing feeding hopper sealing structure is poor in sealing performance, unsmooth in feeding and the like are solved, and the feeding hopper sealing structure has the advantages of being excellent in sealing performance, smooth in feeding, stable, reliable, convenient to maintain and the like; odor dust can be effectively prevented, the equipment environment is maintained, and the power generation efficiency is improved.

This utility model relates to the field of fishing tackle accessory manufacturing technology, specifically to an embedded automatic adjusting brake device and fishing reel with a reasonable structure and simple operation. It includes a spool and a spool bracket. The spool is mounted on the spool bracket via a rotating shaft, and the spool bracket also has a side cover. The key feature is the inclusion of a magnetic component, which includes a support sleeve coaxially arranged with the spool. One end of the support sleeve is connected to the side cover, and the outer wall of the other end of the support sleeve has a magnet fixing hole. The outer diameter of the support sleeve is smaller than the inner diameter of the spool drum. The end of the support sleeve extends into the spool drum. The magnet is slidably mounted in the magnet fixing hole via an elastic component. When the spool rotates, it cuts the magnetic lines of force around the magnet, causing the magnet to extend out along the magnet fixing hole, thus reducing the gap between the magnet and the spool.

The application discloses a plate-rod combined negative stiffness damper, which comprises a damping object, a linear supporting spring, a linear damping, a sliding groove, a plate spring, a connecting rod, a rigid cantilever and a smooth hinge; one end of the damping object is elastically connected with a side wall through the linear supporting spring and the linear damping, and the other end is fixedly connected with the rigid cantilever; the damping object is horizontally slid in the horizontally placed sliding groove through a pulley; two end surfaces of the plate spring are fixed with the side wall, and the center position of the plate spring is an arch height position; the plate spring is symmetrically distributed in the horizontal direction about the rigid cantilever in a relative arch height position mode; the left and right sides of the center position of the plate spring are symmetrically provided with the horizontal connecting rods; one end of the connecting rod is smoothly hinged with the plate spring, and the other end is smoothly hinged with the rigid cantilever. The damper can control the vibration in the horizontal direction, and has the advantages of simple structure, light mass, easy manufacturing, low price, reliable work and strong bearing capacity.

This invention discloses a mechanical limiting and hydraulic cylinder coordinated driving mechanism for the inner pull-out mechanism on the top side of a two-color injection mold, relating to the field of two-color injection mold technology. The mechanism includes an inner pull-out shovel base and a limiting drive rod fixed to the fixed mold side, and a hydraulic cylinder, an inner pull-out steering block, an inner pull-out main body, and a limiting slider disposed on the moving mold side. The limiting slider has a limiting groove, and the limiting drive rod has an inclined portion that cooperates with it. The inner pull-out steering block has a limiting hole, and the limiting slider can be inserted into or removed from the limiting hole under the action of an elastic element. During mold opening, the limiting drive rod separates from the limiting groove, and the elastic element drives the limiting slider to lock the inner pull-out steering block, preventing it from falling. During mold closing, the limiting drive rod drives the limiting slider to unlock via the inclined surface, and then the inner pull-out shovel base precisely resets the inner pull-out steering block. This invention, through a purely mechanical limiting structure, eliminates the risk of the top side slider falling during power switching, improves reset accuracy, eliminates the auxiliary hydraulic cylinder, simplifies the mold structure, and reduces costs.

The utility model relates to a long-sight-distance liquid level meter for a high-low pressure container, which comprises the high-low pressure container, a magnetic floater, a high-pressure-resistant communicating pipe, a magnetic sensitive switch array, a light-emitting diode array and the like, and is characterized in that the magnetic floater floats on the liquid level in the high-low pressure container through the high-pressure-resistant communicating pipe; the magnetic induction of the magnetic floater causes the magnetic sensitive switch at the corresponding position to be switched on, and the light-emitting diode connected with the magnetic sensitive switch is lightened. The liquid level is determined by remotely observing the position of the lighted light emitting diode, the structure is simple, work is reliable, and the liquid level measuring device is particularly suitable for medium-large containers and high-risk environments where the liquid level cannot be observed in a close range and belongs to the field of measuring instrument manufacturing and application.

The embodiment of the present application discloses a kind of multiplexer and communication equipment, the multiplexer includes a transmitting port, at least one receiving port, at least one antenna port, filter set and switch.The fixed end of switch is connected with the first TDD filter in filter set, the first free end of switch is connected with the output end of the second TDD filter in filter set, and the second free end of switch is connected with one of receiving port;Transmitting port is connected with the input end of FDD transmitting filter in filter set and the input end of second TDD filter, and the output end of FDD receiving filter in filter set is connected with one of receiving port;The output end of FDD transmitting filter, the input end of FDD receiving filter and the first TDD filter are respectively connected with one of antenna port.Using the embodiment of the present application can improve port multiplexing rate and reduce circuit area under the premise of ensuring the reliable work of FDD and TDD.

The utility model provides a kind of collision energy-absorbing box and vehicle, it is related to vehicle parts technical field, collision energy-absorbing box includes shell and energy-absorbing component, shell is used to connect between car body longitudinal beam and crash beam;Energy-absorbing component includes flexible container and filled shear thickening fluid in it, flexible container is set in shell;Flexible container has a stress part, stress part extends to the outside of shell and is used to bear collision force;Shear thickening fluid can change its viscosity in response to different collision speed transmitted by stress part, and change by the deformation resistance of flexible container, so that energy-absorbing box presents different rigidity.The utility model integrates energy-absorbing component in shell, and makes energy-absorbing component consist of flexible container and filled shear thickening fluid in it, realizes the self-adapting adjustment of energy-absorbing box rigidity by the self-adapting change of shear thickening fluid viscosity, solves the contradiction that traditional energy-absorbing box cannot consider low speed and high speed crash performance.