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1546 results about "Locking mechanism" patented technology

Locking Mechanisms. Explanation Locking mechanisms are a way for databases to produce sequential data output without the sequential steps. The locks provide a method for securing the data that is being used so no anomalies can occur like lost data or additional data that can be added because of the loss of a transaction.

New type of protective sliding door

The present invention discloses a new type of protective sliding door and, during installation, the positioning mechanism and locking mechanism can be first fixedly installed in a predetermined position, and then the door railing body can be installed, the second connecting piece at the lower part of the pivot connection side of the door railing body can be flexibly connected to the lower part of the positioning mechanism, the connecting piece that can be installed on the first connecting piece can be fixedly assembled with the upper part of the positioning mechanism, so that the installed door railing body can open or close the door by swinging relative to the positioning mechanism and, after the door is closed, the locking mechanism can be connected to the locking side of the door railing body to lock the door railing body.
Owner:GUANGZHOU SAIR IND CO LTD

White list state synchronous processing method and system combined with database transaction control

The invention discloses a white list state synchronous processing method and system combined with database transaction control, and relates to the technical field of database transaction control and data synchronous processing. The method comprises the following steps: recording a white list state change event based on a pre-writing mechanism of a database transaction log; change events in a transaction log are classified and aggregated according to a white list and then are asynchronously written into a specified buffer area, when a transaction is submitted, the sequence of data in the buffer area is controlled through a lightweight lock mechanism to be refreshed to a physical disk, and the priority of a disk IO queue is dynamically adjusted according to the transaction isolation level to reduce concurrent conflicts; according to the white list state synchronization processing method and system combined with database transaction control, the transaction concurrent processing performance and the database response efficiency are remarkably improved, and the expansion capability and stability of the white list synchronization system in a complex business environment are also improved.
Owner:北京中睿天下信息技术有限公司

Stable support of air sampler

The invention discloses a stabilizing support of an air sampler, and belongs to the technical field of environment monitoring equipment, the stabilizing support comprises a support body and a bearing platform used for bearing the sampler, the top of the support body is connected with the bearing platform through a universal spherical hinge assembly, and the universal spherical hinge assembly comprises a base, a universal ball head and a short supporting column; the universal ball head is connected with the bearing platform through a short supporting column, a gravity center adjusting bin is fixedly arranged below the bearing platform, a lantern ring type locking mechanism is arranged on the opening portion of the base, and three or more radial guide grooves are formed in the end face of the opening portion of the base in the circumferential direction of the base. Each radial guide groove is internally provided with a locking block capable of sliding along the groove, the locking lantern ring can be rotated to move in the axial direction of the base, and then the locking blocks are driven to synchronously move inwards along the radial guide grooves through the conical surface extrusion effect so as to tightly hold the universal ball head. The problems that in the prior art, leveling efficiency is low, locking is prone to loosening, and the anti-overturning capacity is poor are effectively and comprehensively solved.
Owner:遵义市精科信检测有限公司

Metal tube float flowmeter based on intelligent sensor

The invention discloses a metal tube float flowmeter based on an intelligent sensor, and relates to the technical field of float flowmeters, the metal tube float flowmeter comprises a tube body and a detection mechanism, an instrument is fixed on the outer side of the tube body through a bolt and used for realizing flow display, the instrument is connected with a Hall element, the detection mechanism used for flow detection is installed in the tube body, and the Hall element is connected with the detection mechanism. And the locking mechanism is used for realizing initial locking of the detection mechanism. According to the metal tube float flowmeter based on the intelligent sensor, the elastic regulation and control mechanism is arranged at the position of the liquid inlet of the tube body, peak kinetic energy of fluid is actively absorbed through elastic deformation of the first spring, and therefore the fluid entering the tube body can be buffered, pulsating flow of the external input fluid is effectively converted into stable flow, and the flow rate of the fluid is increased. Jumping of the floater body is greatly reduced, the problem that reading is difficult due to jumping of the floater body can be solved, the positive error of an average measured value caused by pulsation can be avoided, and the accuracy of detection data is guaranteed.
Owner:JIANGSU HENGHE GRP

Detection tool for engagement depth of sliding block of elevator door system

The invention relates to the technical field of elevator door system safety detection, in particular to an elevator door system sliding block meshing depth detection tool which comprises a connecting frame, a locking mechanism and a lower sliding plate, the connecting frame is fixedly installed on a sliding block, the width of the connecting frame is smaller than that of a groove, and the lower sliding plate is located at the bottom of the connecting frame. According to the elevator door system sliding block meshing depth detection tool, after installation is completed, the lower sliding plate can fall to the bottom of the groove, numerical values are accurately measured, the sliding block meshing depth detection accuracy is improved, and the working efficiency is improved. The structure is simple and small, the operation mode is finger pushing, measurement can be carried out in a narrow space, measured numerical values can be locked, it is guaranteed that detection personnel can accurately measure the numerical values, finally, the accurate meshing depth is obtained, and it is guaranteed that an elevator can operate safely and stably in the follow-up process.
Owner:SPECIAL EQUIP SAFETY SUPERVISION INSPECTION INST OF JIANGSU PROVINCE

Detection, polishing and sand blasting integrated platform for small complex workpiece

The invention provides a detection, grinding and sand blasting integrated platform for a small complex workpiece. The detection, grinding and sand blasting integrated platform comprises a platform body, a grabbing robot is installed on the table body, and a feeding conveying line, a first visual detection mechanism, a grinding station and a sand blasting station are arranged on the periphery of the grabbing robot. A second visual inspection mechanism is arranged on one side of the polishing station; the grinding station comprises a movable seat used for carrying workpieces, and the movable seat is connected with a translation mechanism. A cleaning assembly is slidably mounted in the polishing station, the cleaning assembly is connected with a locking mechanism, a supporting frame is fixed to the movable seat, and a connecting mechanism is mounted on the supporting frame and used for being connected with the locking mechanism; an unlocking part is arranged on the connecting mechanism; the cleaning assembly is connected with a reset part. The equipment integrates the functions of detection, grinding and sand blasting, one-stop machining of workpieces is achieved, and manual circulation among multiple pieces of equipment is not needed. And meanwhile, based on a visual detection result, self-adaptive polishing path planning is carried out, and a polishing track can be dynamically generated according to the defect type and position.
Owner:DALIAN YUYANG IND INTELLIGENT

Stop ruler swing angle, front-back translation and quick locking mechanism of sliding table saw

The utility model discloses a stop ruler swing angle, front-back translation and quick locking mechanism of a sliding table saw, which comprises a material placing frame, a stop ruler arranged on the material placing frame, a front-back translation device, a swing angle device, a left-right sliding device and a quick locking device, the front-back translation device comprises two translation guide rails fixed to the discharging frame, a translation sliding block installed on the two translation guide rails in a sliding mode and a translation plate fixedly installed on the translation sliding block. Two of the four quick locking devices are located at the two ends of the front end of the discharging frame, and the other two quick locking devices are located at the two ends of the rear end of the discharging frame and used for locking the two fixing shafts located at the two ends of the bottom of the blocking ruler; the blocking ruler can translate front and back, slide left and right and rotate, can be quickly locked, is convenient to use, and can be suitable for processing plates with different specifications.
Owner:FOSHAN SAGE MASCH CO LTD

Data line storage device and lanyard data line

The utility model discloses a data line storage device and a lanyard data line, the data line storage device comprises a storage piece and a locking mechanism, the storage piece is provided with connecting holes for connecting pieces at two ends of the data line to go in and out, the locking mechanism is arranged in the connecting holes, and the locking mechanism is connected with the storage piece. And a locking part which can be connected with the locking mechanism is arranged on the connecting piece. The connecting pieces at the two ends of the data line are inserted into the connecting holes of the storage piece, so that the connecting pieces and the locking mechanisms in the connecting holes are connected together, a closed-loop hanging and wearing space is formed, the data line can serve as a hanging rope, and a user can hang the data line on the wrist or the neck; the data line is convenient to carry by a user and can be prevented from being lost.
Owner:SHENZHEN MAGIC CUBE DIGITAL TECH CO LTD

System and methods for firmware update mechanism

A new approach is proposed to support hardware-based update of a software (e.g., a firmware) of an electronic device in a non-functional state. Under the proposed approach, the software is stored securely on a resource (e.g., a non-volatile storge) protected by a hardware-based lock mechanism. A first agent acquires a lock and authenticate the software. When a boot failure (e.g. authentication of the software fails) of the electronic device happens, an alert indicating the failure is generated and sent to a second agent (e.g., a sideband master) through an alert mechanism. The second agent then acquires a lock from the hardware-based lock mechanism to obtain exclusive excess to the resource and update the software stored in the non-volatile storage through, e.g., block write and / or read operations. The second agent then verifies that the software has been updated successfully so that the electronic device becomes functionally again.
Owner:MARVELL ASIA PTE LTD

Battery tank structure of unmanned aerial vehicle

InactiveCN109941445ASolve the problem of large space occupationPower plant constructionPower plant typeElectrical batteryEngineering
The invention discloses a battery tank structure of an unmanned aerial vehicle (UAV) and relates to the technologies of battery tank structures of UAVs. The battery tank structure can solve the problem of large space occupation of a battery tank of an existing UAV. A main battery tank body is of a rectangular structure, is placed in the middle of a UAV body, the side wall of the tank body is provided with a plurality of positioning holes, and a battery locking mechanism is fixed by the positioning holes and fixedly connected to a battery after the battery is inserted into the battery tank; byfixing the battery locking mechanism to the positioning holes in different positions, the position of the battery in the whole UAV body is adjusted, and correspondingly the position of the gravity center of the UAV body is adjusted. The structure is mainly used for UAVs.
Owner:HIWING AVIATION GENERAL EQUIP

Adjustable building template supporting device

The invention relates to the technical field of formwork supporting, and discloses an adjustable building formwork supporting device which comprises a fixing mechanism, an adjusting mechanism, a locking mechanism and an abutting mechanism, the adjusting mechanism is movably connected to the top of the fixing mechanism, and the locking mechanism is arranged on the side face of the adjusting mechanism. The abutting mechanism is arranged on the side face of the fixing mechanism and the side face of the adjusting mechanism. According to the adjustable building formwork supporting device, the base is used for bearing, the fixing plate is connected with a peripheral structure, the inclined panel and the plug pin are used for enhancing overturning resistance, the abutting mechanism is combined with the spring support for buffering and the abutting plate for abutting, the overall stability is guaranteed, a crank is rotated to achieve transverse adjustment, and the telescopic sleeve, the telescopic rod and the rotating frame are matched to adjust the height and angle; the locking mechanism accurately guides and locks the supporting angle, the pulling block is convenient to adjust, all the mechanisms cooperate with one another, the component design meets the requirements of various construction environments and formworks, and stability, flexibility and wide applicability are achieved.
Owner:CSCEC STRAIT CONSTR & DEV

Socket with safety protection

The invention discloses a socket with safety protection. The socket comprises a multi-mode thermal sensing array, and a fusion array of a miniature infrared thermal imaging sensor array and a distributed fiber grating temperature sensor which are integrated at key points in the socket; according to the active locking mechanism based on the thermal deformation prediction model, a micro servo motor, a ball screw, a pre-tightening spring and a spring bolt form an electronic lock, a shape memory alloy wire is used for rapid and silent emergency unlocking, and the micro servo motor is used for high-precision conventional locking; the dynamic thermal safety boundary algorithm module is used for dynamically calculating the optimal temperature upper limit and the optimal power upper limit of each component in the current state according to factors such as a real-time temperature field, predicted thermal deformation, current charging power and historical charging data; the main controller is used for transmitting a large amount of real-time temperature field data. Through multi-mode sensing, predictive modeling and master-redundancy cooperative execution, thermal safety and mechanical reliability of the charging interface under extreme working conditions are guaranteed.
Owner:VOLEX INTERCONNECT SYST (SUZHOU) CO LTD

Double-interlocking logic AB type latch hook for safety belt and latch hook interlocking system

The invention discloses a double-interlocking logic AB type lock hook for a safety belt and a lock hook interlocking system, and relates to the technical field of high-altitude operation safety protection, the lock hook comprises a lock hook controller, the lock hook controller is in communication connection with the following modules: a state sensing module, which is used for monitoring the locking state of a main lock and an auxiliary lock of the AB type lock hook in real time, lock body state information is provided for a lock hook controller; and the control logic module is used for dynamically controlling unlocking and locking permissions of the main lock and the auxiliary lock according to the lock body state information of the state sensing module. According to the invention, a forced alternate locking mechanism is constructed, only the main lock is authorized to be unlocked during initialization, the authority of the auxiliary lock can be activated after the main lock is locked, and the authority chain is automatically reset after the auxiliary lock is locked, so that at least one lock body is always in a locked state in the climbing and hooking process; the risk of hanging in air caused by illegal operation or misjudgment of operators is effectively prevented, and the safety of high-altitude operation is fundamentally improved.
Owner:WUHE COUNTY POWER SUPPLY CO OF STATE GRID ANHUI ELECTRIC POWER CO LTD

Apparatus and method for an oral nicotine dispensing system

An apparatus and method for an oral nicotine dispensing system. The apparatus includes storing a plurality of a pods in a magazine within a body, receiving a fingerprint scan from a user via a fingerprint scanner coupled to the body, authenticating the fingerprint scan, de-activating a locking mechanism to allow access to at least a pod upon successful authentication of the fingerprint scan, and dispensing, using at least a drive mechanism, the at least a pod from the magazine through an opening of the body.
Owner:SKYX IP HOLDINGS I LLC

Electromechanical lock

An electromechanical lock includes an electromechanical locking mechanism and a control circuit, wherein an associated counter-piece is locked by way of the locking mechanism. The locking mechanism has a latch, an entrainer that is rotatable about an axis of rotation for driving the latch, and an electric motor for driving the entrainer, wherein the latch is moveable between a locking position and an unlocking position, wherein the latch is preloaded in the direction of the locking position. The entrainer is rotatable into a release position, a standby position, and a blocking position and the latch can is driven to perform a movement into the unlocking position by rotating the entrainer into the release position. In the standby position, the latch is released to be urged back against the preload. In the blocking position, the entrainer blocks the latch against a movement in the direction of the unlocking position.
Owner:ABUS AUGUST BREMICKER SOEHNE KG

Recoverable impact type sounding system device

The utility model discloses a recoverable impact type sounding system device, and belongs to the technical field of geological exploration equipment. The device is composed of a take-up and pay-off winch, a guide pulley, an ejection device, an impact sounding probe and a measurement and control cable. A winch is automatically controlled through a winch control unit, the take-up and pay-off speed is fed back and adjusted through a tension sensor, and dual-mode control is adopted for different operation water depths of 0-5 m and 5-50 m. The ejection device energizes the probe through the energy storage spring, and the locking mechanism achieves automatic locking and releasing. The impact sounding probe adopts a standard structure and is provided with various sensors, so that data can be stably acquired and wirelessly transmitted. The device can accurately control probe putting, is suitable for operation at different water depths, has good recoverability, effectively overcomes the defects of traditional sounding equipment, and improves the efficiency of geological exploration and the accuracy of data.
Owner:磐索海洋科技(三亚)有限公司

Integrated linkage execution device and granary sealing window applying same

The invention discloses an integrated linkage execution device and a granary sealing window applying the same. The integrated linkage execution device comprises a linear driver, a locking mechanism, an opening and closing mechanism and a transmission mechanism, and the linear driver is in linkage with the locking mechanism and the opening and closing mechanism through the transmission mechanism at the same time; the transmission mechanism is configured to decompose one-time one-way linear motion of the linear driver into sequential driving of the locking mechanism and the opening and closing mechanism; during closing, the opening and closing mechanism is firstly driven to move to the closing position, and then the locking mechanism is driven to move to the locking position; during opening, the locking mechanism is firstly driven to move to the unlocking position, and then the opening and closing mechanism is driven to move to the opening position. The single linear driver is adopted, integrated control over opening, closing, unlocking and locking actions of a window sash (or a door leaf) is achieved, the design thought that two independent executing mechanisms need to be arranged in an electric drive side shaft side-hung opening scheme is abandoned, and the intelligent control system can be widely applied to granary sealing windows, heat preservation air-tight doors, granary ventilation openings and other occasions.
Owner:SHIJIAZHUANG LIANGBAO TECH CO LTD

Locking device biometric access

An electronic locking device includes an electronically controllable locking mechanism, a memory, a wireless transceiver configured to communicate wirelessly with a user device to receive an encrypted package containing a biometric template corresponding to an authorized user, and a processor. The processor is configured to decrypt the encrypted package and store the biometric template in the memory, receive a biometric input corresponding to a user attempting to access the electronic locking device, determine if the biometric input matches the biometric template of the authorized user, and activate the electronically controllable locking mechanism in response to a determination that the biometric input matches the biometric template of the authorized user.
Owner:MASTER LOCK CO INC

Electronic door with key-in-lever feature

An electronic door lock is operable to control access to an access controlled area adjacent the inner side of a door. The door lock includes an outer base, an inner base, a locking mechanism movable between a locked and unlocked position in response to a control signal, and a control circuit disposed within the inner base and operable to generate the control signal in response to the presentation of an input credential. A plurality of different types of credential readers are each selectively attachable and removable from an attachment interface when the outer base is attached to the door to electrically connect the selected one of the plurality of different types of credential readers to the control circuit. The selected credential reader receives data from a user or credential and generates the input credential. A communication module is operable to communicate with a device separate from the electronic door lock.
Owner:SCHLAGE LOCK CO LLC

Injection molding raw material feeding mistake-proofing checking system for safety system air bag

The invention relates to the technical field of injection molding production and manufacturing, and discloses an injection molding raw material feeding mistake-proofing verification system for a safety system airbag, which comprises a central verification server, an edge computing gateway, an intelligent hopper unit provided with an electromagnetic locking mechanism and a handheld intelligent terminal. The handheld terminal is used for collecting information, and the server verifies order matching and generates an unlocking instruction when the physical position identifiers are consistent and are in a preset time window. The system establishes a virtual session to lock the injection molding machine in a single-batch mode, and the product taking-out manipulator and the label printer are linked in real time through the interlocking control module according to the session state. The algorithm engine module calculates single-mode consumption based on screw metering parameters and melt PVT characteristics so as to invert real-time inventory, and pressure and speed characteristics in the glue injection process are extracted in combination with the rheological analysis module to generate rheological fingerprints for attribute verification. According to the invention, the space-time physical interlocking of the feeding authority, the whole-process batch anchoring and the online closed-loop monitoring of the physical attributes of the raw materials are realized.
Owner:NINGBO FOUNDER AUTO PARTS CO LTD

Novel garbage container box door locking mechanism and unlocking and locking mechanism thereof

The novel garbage container box door locking mechanism comprises a cross beam, a first guide seat, a second guide seat, a gear shaft, a gear, a first rack, a second rack and a lock hook assembly, the first guide seat, the second guide seat and the gear shaft are all arranged on the cross beam, the gear shaft is arranged between the first guide seat and the second guide seat, and the lock hook assembly is arranged between the first guide seat and the second guide seat. The gear is arranged on the periphery of the gear shaft in a sleeving mode, the first rack is arranged in the first guide seat in a sliding mode, the second rack is arranged in the second guide seat in a sliding mode, the first rack and the second rack are both meshed with the gear, and the lock hook assembly is rotatably connected with one end of the second rack. Through the application of the novel garbage container box door locking mechanism and the unlocking and locking mechanism thereof, the structure of the locking mechanism can be simplified, automatic butt joint can be achieved between the locking mechanism and the unlocking and locking mechanism, then locking and unlocking operation of the box door can be automatically completed, and the labor intensity of workers can be reduced.
Owner:CN NL WASTE SOLUTION

Multi-process task tracking management method and system

The invention discloses a multi-process task tracking management method and system, and relates to the technical field of process task management, and the method comprises the steps: generating a task data package of a next processing process of a product, and arranging the task data package in a task pool; extracting a data identifier of a task data packet in the task pool, and generating a task two-dimensional code based on a distributed lock mechanism; obtaining a verification data packet based on a code scanning claiming operation of an operator; querying whether the task two-dimensional code of the target task is in an unlocked state according to the target task information in the verification data packet, if not, querying the task data of the target task according to the target task information of the verification data packet, detecting whether the equipment information identifier of the verification data packet is matched with the data identifier of the task two-dimensional code, and if yes, executing the step 3; and if yes, generating a task key according to the verification data packet, and outputting prompt information that the task is successfully received. The method has the advantages of realizing real-time task allocation, accurately tracking the processing procedure state and ensuring accurate matching of operators and tasks.
Owner:HANGZHOU KEQIANG INFORMATION TECH CO LTD

Novel AI intelligent electric energy metering box

A novel AI intelligent electric energy metering box disclosed by the present invention comprises a box body used for accommodating an electric meter and an internal circuit and a box door, a built-in locking mechanism is arranged between the box body and the box door, and the box door is provided with an Internet of Things mechanism. The built-in locking mechanism comprises guide cylinders fixedly installed on the inner wall of the box body, guide rods rotatably installed on the inner side of the box door and an unlocking assembly, and the guide rods and the guide cylinders are in clearance fit and are distributed in a rectangular array. The user can check the power consumption information anytime and anywhere through the touch display screen or the mobile phone and know the power consumption condition, the user can conveniently and autonomously manage the power consumption, and the user experience is improved.
Owner:TANGSHAN YUCHEN POWER EQUIP CO LTD

Automatic product grabbing system and method

PendingCN121872058AStable grabbing height benchmarkReduce the impact of crawling accuracyConveyorsControl devices for conveyorsManufacture execution systemIndustrial robotics
The invention discloses an automatic product grabbing system and method, and relates to the technical field of industrial robots, in the system, an equipment body is provided with a grabbing station and a placing station, an inbound positioning assembly outputs an AGV tool vehicle in-place signal, and a jacking positioning assembly establishes a preset grabbing height; the visual positioning assembly collects an image output pose compensation amount, the bar code recognition assembly obtains a bar code and interacts with the manufacturing execution system to obtain a verification result, the controller issues the compensation amount to the industrial robot control end when verification is allowed, and an end effector is driven to complete positioning, locking and unlocking of grabbing locked by a tool vehicle clamp; the tray transferring and positioning mechanism completes transferring and positioning of the shipping tray, and the unlocking and locking mechanism unlocks / locks the locking block handle and conducts visual review in the placing process. By means of the technical scheme, the grabbing and placing alignment precision and the mistake proofing capacity are improved, the risks of collision, falling and locking omission are reduced, and the takt time stability and traceability are improved.
Owner:BEIJING YANFENG BEIQI AUTOMOTIVE UPHOLSTERY CO LTD +3

Positioning device and control system for profile steel with different fixed sizes

The invention discloses a positioning device and a control system for profile steel with different fixed sizes, the positioning device is arranged corresponding to a sawing machine on a hot rolling production line, and the positioning device comprises a rack, and a walking mechanism, a locking mechanism and a swing arm mechanism which are arranged on the rack, the swing arm mechanism is provided with a movable baffle mechanism used for positioning profile steel on a production line. Due to the design of the movable baffle, an original blocking function is added into a blocking function under pressurization, and positioning saw cutting of the long fixed-length profile steel is achieved; a counting wheel and an encoder are designed at the top of the lifting baffle, and the counting wheel is in reliable contact with the profile steel at a counting position, so that baffle positioning and encoding counting are on the same reference point, accurate sizing is ensured, and efficient production is realized; in cooperation with application of a fixed-length sawing control program, different fixed-length measurement modes are automatically selected according to different fixed lengths, accurate sawing is achieved, and the production rhythm is efficient and rapid.
Owner:МААНЬШАНЬ АЙРОН ЭНД СТИЛ КО ЛТД

A locking mechanism and a sheet-like door railing therewith

The present invention discloses a locking mechanism and a sheet-like door railing therewith and, compared with the traditional one, the present invention, based on the prior art, through the fitted connection between the hook portion and hook groove, ensures that the outer door railing remains fitted connection with the locking mechanism, without local reset, when the zip tie or rope at the corresponding position is cut, thereby avoiding possible body injury caused by reset.
Owner:GUANGZHOU FENGSHINE METAL PROD CO LTD

Lifting tripod

The present disclosure discloses a tripod includes: a first section, a second section, a third section, and a synchronized locking mechanism. The first and the third sections are movably connected relative to the locking mechanism, while the second section is fixedly secured to the mechanism, enabling controlled relative motion between the first and the third sections. The locking mechanism integrates a first locking assembly, a connecting assembly, and a second locking assembly.
Owner:TILTA INC

Identity authentication method based on secure computer

The invention discloses an identity authentication method based on a secure computer, which relates to the technical field of computer security, and comprises the following steps: deploying an authentication module, and pre-burning an excitation-response pair library of a physical unclonable function; chaotic mapping parameters are randomly initialized, and a chaotic sequence is generated through improved Logistic mapping; sending random excitation to the PUF to obtain an original response, segmenting the original response, and mixing the segmented original response with the chaos sequence; the confusion response is recombined into a three-dimensional matrix, nonlinear diffusion is achieved through a rotation transformation formula, and then the confusion response is flattened into a final registration response; after the user submits a user name, the system generates a random challenge and a current timestamp; calculating a first authentication factor based on the registration response and the timestamp, and recursively generating a factor chain; and the server repeatedly generates a factor chain for matching, updates a registration response if the matching is successful, and triggers a locking mechanism if the matching is failed. According to the chained dynamic authentication method based on PUF response chaos confusion, the dynamic unpredictability of each authentication session can be realized.
Owner:FIFTH AFFILIATED HOSPITAL OF ZHENGZHOU UNIV

Method for regulating and controlling hydrodynamic balance valve with real-time load feedback function

PendingCN121953135AStreamlined and efficient designSuitable for real-time operationOperating means/releasing devices for valvesDesign optimisation/simulationLocking mechanismMechanical wear
The invention provides a method for regulating and controlling a hydrodynamic balance valve with a real-time load feedback function, and the method comprises the steps: collecting the strain, water level, gas, vibration and motor current data of the balance valve in real time, constructing and utilizing a comprehensive load balance model, and calculating the effective safety torque of the balance valve in real time at an edge calculation layer; a mechanical wear degradation factor is calculated based on the action history and the current variance of the locking mechanism, and the instantaneous instability risk probability is calculated in combination with the effective safety torque and the current locking torque; according to the instantaneous instability risk probability, an output mode of a locking mechanism is dynamically adjusted to execute a graded locking action; and periodically calculating a full-life-cycle health degree index, and automatically generating a maintenance or replacement work order when the full-life-cycle health degree index is lower than a preset threshold value. According to the invention, the conversion from passive alarm to active defense is realized, and the safety and operation and maintenance efficiency of the urban balance valve in rainstorm, heavy load and corrosion environments are obviously improved.
Owner:CHANGZHOU UNIV

Removable and wearable self-locking double-arch-wire correction system

The invention discloses a removable and wearable self-locking double-arch-wire correction system, which belongs to a fixed correction system and can be applied to tongue side correction or lip side correction. The device comprises a first arch wire, a second arch wire, a lock cover, a bracket and a self-locking mechanism, the first arch wire and the second arch wire are connected to the upper faces of the lock covers in a penetrating mode at the same time, a lock cover containing cavity is formed in the upper face of the bracket, the self-locking mechanism can be an active self-locking mechanism or a passive self-locking mechanism, the lock covers are fixedly locked in the bracket through the self-locking mechanism, and the first arch wire and the second arch wire are not in contact with the bracket. According to the invention, the problem of inaccurate correction force expression caused by the fact that the arch wire needs to provide clamping force is solved, and the problem of clearance angle caused by untight matching of the arch wire and the bracket is also avoided, so that arch wire data can be completely expressed; the covering area of the lock cover is large, the locking effect is good, the influence and limitation on unlocking are smaller, and meanwhile the wearing stability and the taking-off and wearing comfort of the arch wire are guaranteed.
Owner:GUANGZHOU RITON BIOMATERIAL