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92 results about "Contact sensor" patented technology

Method for automatic docking and fixing of autonomous unmanned underwater vehicle to bottom mooring device

FIELD: underwater equipment.SUBSTANCE: invention is intended for precise automatic docking and fixation of autonomous unmanned underwater vehicles (AUVs) using bottom mooring devices (BMDs). For automatic docking and fixation of an autonomous unmanned underwater vehicle on bottom mooring devices, an underwater vehicle is used with the ability to detect bottom mooring devices using a hydroacoustic navigation system installed on it. Using the onboard control system, the underwater vehicle stabilizes its position in the working area of the manipulator with a given orientation to its grip; simultaneously with the last command, a signal is sent using the hydroacoustic navigation system of the underwater vehicle about its arrival in the area of the bottom mooring device. After receiving this hydroacoustic signal from the hydroacoustic navigation system, a machine vision system installed near the manipulator's grip is turned on, and with its help, the spatial location of the clamp of the gripping device located in the bow part of the underwater vehicle’s hull is detected, and then, with the help of the technical vision system and the manipulator control system, its open grip is smoothly moved towards the clamp until the contact sensor, located inside the gripper jaws, is triggered; upon the signal from the contact sensor, the gripper jaws are closed, fixing the underwater vehicle in the water space. Using the manipulator control system, the corresponding control signals are sent to the manipulator drives, smoothly moving the underwater vehicle to the bottom mooring device platform; during this movement, the underwater vehicle’s thrusters maintain its horizontal position; said movement of the underwater vehicle by the manipulator is completed after the activation of the locking devices located, respectively, on the underwater vehicle and the bottom mooring device. After said fixation, using contactless devices located inside the fixing devices, the underwater vehicle's batteries are recharged via a cable-rope, information is exchanged between this underwater vehicle and the accompanying vessel, or the underwater vehicle is quickly lifted onto this vessel using a winch.EFFECT: precise and rapid docking of the AUV with the charging device or with the device for its rapid ascent to the surface, as well as rigid fixation of the AUV at a given point in the water space when the onboard equipment of this apparatus performs arbitrary working operations.1 cl, 1 dwg
Owner:FEDERALNOE GOSUDARSTVENNOE BJUDZHETNOE UCHREZHDENIE NAUKI INST AVTOMATIKI I PROTSESSOV UPRAVLENIJA DALNEVOSTOCHNOGO OTDELENIJA ROSSIJSKOJ AKADI NAUK IAPU DVO RAN

Anomaly detection system and anomaly detection method

We provide an anomaly detection system capable of detecting abnormalities in humans. [Solution] An anomaly detection system comprising: a first motion detection unit 301 that detects movements of a person 20 that are greater than a motion threshold using a non-contact sensor 10; a presence location determination unit 302 that, if it has detected movements greater than the motion threshold, determines whether a person is present in a location 30 where the non-contact sensor 10 can detect movements of a person 20 that are less than the motion threshold; a second motion detection unit 303 that detects movements of a person 20 that are less than the motion threshold if it has determined that a person is present in a location 30 where it can detect movements of a person 20 that are less than the motion threshold; and an anomaly determination unit 304 that, if it has not detected movements less than the motion threshold, determines that something is wrong with the person 20.
Owner:TOTAL FUTURE HEALTHCARE INC

Feeding device for stainless steel bar machining

This utility model relates to the field of metal processing technology, and particularly to a feeding device for stainless steel bar processing. It includes a conveyor belt module and a second pushing module arranged parallel to each other. A first pushing module is positioned between the conveyor belt module and the second pushing module, facing towards the second pushing module. A transition ramp is provided between the first and second pushing modules, and a lifting door is installed in the transition ramp. Contact sensors and laser rangefinders are positioned opposite each other at the front and rear ends of the conveyor belt module. The conveyor belt module includes a horizontal conveyor belt and baffles vertically arranged on both sides of the horizontal conveyor belt. The baffle near the second pushing module has a notch-connected transition ramp, and the baffle also has a notch-connected feeding ramp. This utility model has a reasonable structure, and the feeding, conveying, measuring, and screening processes are connected quickly and smoothly. Bars that pass the measurement are conveyed to the next stage, while bars that fail the measurement are conveyed to a collection bin.
Owner:CHANGZHOU JUHUI METAL PROD CO LTD

A heat sink profile cutting and rotating processing integrated process

The application discloses a heat radiator profile cutting and rotating processing integrated process and relates to the heat radiator profile processing technical field.The process comprises the following steps: S1, feeding; S2, clamping and positioning; S3, cutting; S4, reference detection and compensation; S5, boss processing; and S6, unloading.The cutting, reference detection and compensation and boss processing are integrated in the same station, the double steel saws are arranged in series, the non-contact sensor is used for on-line detection of the cutting end face, the rotating reference and the sawing starting position are compensated in real time, the profile cutting and the high-precision processing of the end boss are completed once clamping is achieved, the transfer link in the traditional segmented processing is eliminated, the workpiece bump damage is avoided, the processing precision and the good product rate are obviously improved through the closed-loop control mechanism, and the flexible processing of various boss shapes such as the circular shape and the polygonal shape can be adapted.
Owner:KUNSHAN FUHSIN HARDWARE ELECTONICS CO LTD

Aerosol generation device

An aerosol generating device 1 includes a heating unit for heating an aerosol source, a housing 11 accommodating the heating unit and including a top surface 15 provided with an opening or a delivery port for insertion of the aerosol source through which the heated aerosol source is delivered to the outside, a right side surface 14 provided in a direction intersecting the top surface 15, and a right upper curved surface 19 provided between the top surface 15 and the right side surface 14, a contact sensor 100 for detecting a motion on the right upper curved surface 19, and a control unit for performing a process in response to the motion detected by the contact sensor 100.
Owner:JAPAN TOBACCO INC

Methods and systems for monitoring BIO-magnetic signals

An example method for determining cognitive load is described herein. The method includes receiving a cardiac signal measured by a non-contact sensor; determining a heart rate variability (HRV) metric based on the cardiac signal; and determining a cognitive load of a subject based on the HRV metric. An example system for determining cognitive load is also described herein. The system includes a non-contact sensor; a computing device operably coupled to non-contact sensor, the computing device including a processor and a memory, the memory having instructions thereon, that, when executed, cause the processor to: receive a cardiac signal measured by a non-contact sensor; determine a heart rate variability (HRV) metric based on the cardiac signal; and determine a cognitive load of a subject based on the HRV metric.
Owner:OHIO STATE INNOVATION FOUND

Real machine diagnostic and systems

ActiveUS12669969B2Computer hardwareStation
A system, and the like, capable of improving user-friendliness when a work machine is diagnosed in a form intended by a user using a terminal device having a wireless communication function, are provided. A second external request signal based on a designated attribute regarding a designated work machine 200 designated through a terminal input interface 101 and a unique identifier read in non-contact manner from a designated component 222 with a non-contact sensor mounted on a terminal device 100 is transmitted to a real machine communication station 210 mounted on the designated work machine 200. Then, a second external response signal representing information regarding the designated component 222 in response to the second external request signal is transmitted from the real machine communication station 210 to the terminal device 100, and the information that is a diagnostic result of the designated component is output to a terminal output interface 102.
Owner:KOBELCO CONSTR MASCH CO LTD

A cable aluminum sheath grounding fault location system, method and terminal equipment

This invention discloses a cable aluminum sheath grounding fault location system, method, and terminal equipment, belonging to the field of electrical detection and fault diagnosis. The system includes a pulse source module and a contact sensor module. During fault detection and location: the cable segment to be tested is in a normally open grounding port state; the pulse source module emits a pulse current to the voltage-applied end of the cable segment; the contact sensor module detects the pulse signal of the cable segment and obtains the current signal detection result; when a sudden pulse change occurs in the current signal detection result, a fault point is determined in the cable segment, and the location of the sudden pulse change is identified as the fault point, thus achieving cable aluminum sheath grounding fault location. This invention solves the technical problems of inaccurate location and low efficiency of traditional detection methods, achieving efficient and accurate location of cable aluminum sheath grounding faults.
Owner:ZHEJIANG DAYOU INDUSTRIAL CO LTD

Skin color detection method and apparatus

PendingCN122376035ALaser hair removalSkin colour
This application provides a skin color detection method and apparatus for use in a laser hair removal device. The laser hair removal device includes a control board and a treatment head. The treatment head contains a contact sensor and a skin color detection component. The light outlet of the treatment head has a skin color detection window and a contact detection part arranged circumferentially. The light outlet, skin color detection window, and contact detection part of the treatment head are arranged on a common end face. The method includes: the control board acquiring a contact signal collected by the contact sensor through the contact detection part, and determining whether the light outlet of the treatment head is in contact with the skin based on the contact signal; after determining that the light outlet of the treatment head is in contact with the skin, the control board controls the skin color detection component to collect the skin color signal through the skin color detection window, and determines the skin color type based on the skin color signal. The technical solution of this application provides high accuracy in determining the skin color type, and the control parameters determined according to the user's skin color also match the user's skin color, resulting in stable hair removal effect without skin damage.
Owner:ZHENGZHOU PINZHENG TECH CO LTD

Device for transcranial magnetic stimulation

PCT designated stageWO2026139421A1Mechanical engineeringBiomedical engineering
The invention relates to a device (10) for transcranial magnetic stimulation of a target region in a body part of a patient, comprising a stimulation unit (20) having at least one magnetic coil (30), wherein the device (10) comprises at least one contact sensor (40) which is designed to detect a contact point (60) between the stimulation unit (20) and a surface (50) of the body part in order to align the stimulation unit (20) with the target region.
Owner:FORBENCAP GMBH

Aerosol generation device

An aerosol generating device includes a heating unit for heating an aerosol source, a contact sensor for detecting an action on a predetermined portion of a housing surface, a first haptic device, a second haptic device, and a processor for controlling a function of controlling heating of the aerosol source by the heating unit and output of the first haptic device and the second haptic device, wherein the processor controls the output from the first haptic device and the output from the second haptic device by switching the output according to content notified to a user.
Owner:JAPAN TOBACCO INC

Optimized control method and system for a round knife machine deviation correction mechanism

PendingCN122355092AClassical mechanicsMachine
This invention proposes an optimized control method and system for the correction mechanism of a circular cutter machine. The method includes: Step 1: Establishing a mechanistic simulation model describing the correction mechanism of the circular cutter machine; inputting a preset low-frequency sinusoidal sweep excitation signal into the correction mechanism; synchronously acquiring lateral offset response data; and determining the unknown dynamic parameters in the mechanistic differential equation through a frequency domain identification algorithm; Step 2: Real-time acquisition of the lateral position offset and linear velocity of the roll material using non-contact sensors at a fixed sampling period T; Step 3: At each sampling moment, using the mechanistic simulation model constructed in Step 1 as a prediction model, and with the currently measured lateral position offset and linear velocity of the roll material as the initial state, constructing a quadratic programming objective function, and solving the correction roller swing angle sequence through online rolling optimization. This method and corresponding system reduce the scrap rate caused by over-correction or under-correction, thereby significantly improving production efficiency.
Owner:KEZHIRUI ELECTRONICS (SUZHOU) CO LTD

A multi-dimension clamping mechanism, system and method for machining

PendingCN122274710AEnsure fitfixedMachiningContact sensor
This invention discloses a multi-dimensional clamping mechanism, system, and method for machining, including a reference plate with an electromagnetic chuck on it. The electromagnetic chuck contacts the outer wall of a workpiece and magnetically attracts the workpiece. The clamping mechanism includes a working shaft, a sliding sleeve, and a cooperating plate. The centerline of the reference plate overlaps with the centerline of the working shaft. A guide rail is provided on the working shaft, and the sliding sleeve is disposed on the guide rail, moving along the guide rail to approach or move away from the reference plate. The cooperating plate is sleeved on the sliding sleeve and has a functional block corresponding to the electromagnetic chuck. A clamping assembly is formed by one functional block and the corresponding electromagnetic chuck. A contact sensor is provided on the functional block. When the functional block contacts the workpiece, the contact sensor sends a signal to the corresponding electromagnetic chuck control unit to control the magnetic attraction timing of the electromagnetic chuck. This invention aims to improve the problem that the clamping point of the clamping surface is difficult to adjust, and that there are significant limitations when temporarily clamping non-coplanar areas of irregular workpieces.
Owner:CHENGDU TECHNICIAN COLLEGE (CHENGDU VOCATIONAL & TECH COLLEGE OF IND & TRADE CHENGDU ADVANCED TECH SCHOOL CHENGDU RAILWAY ENG SCHOOL)

Resonance determination method and device for bottom stop water leakage flow-induced vibration of gate self-vibration frequency

ActiveCN122016183BWater leakageWater flow
The application discloses a gate self-vibration frequency considering bottom seal water leakage flow excitation vibration resonance judgment method and device. The method obtains a flow field agent excitation signal of a to-be-measured structure under a preset fluid boundary condition and a vibration response signal synchronously collected; an excitation main frequency and a corresponding excitation initial phase are extracted based on the flow field agent excitation signal; a same-frequency response phase is extracted from the vibration response signal based on the excitation main frequency; an excitation response phase difference between the same-frequency response phase and the excitation initial phase is calculated, and the excitation response phase difference is mapped to a preset main value interval to obtain a normalized phase difference; finally, the normalized phase difference is compared with a preset theoretical resonance phase difference to determine whether resonance occurs. The application avoids the interference of a contact type sensor on a slit flow field and the damping sensitivity defect of traditional amplitude judgment, and realizes high-precision automatic positioning of a resonance critical point under a complex fluid-solid coupling working condition.
Owner:NANJING HYDRAULIC RES INST +1

Material boat in-place sensor and high-temperature continuous sintering furnace

The invention relates to the field of nuclear fuel element manufacturing, in particular to a material boat in-place sensor and a high-temperature continuous sintering furnace. According to the material boat in-place sensor, a spiral spring and a probe piston are arranged in a shell, one end of a contact probe is located in the shell, and the other end of the contact probe penetrates out of the shell; the probe piston slides in the shell and is in contact with the probe piston when sliding to the end part; a piston rod of the probe piston is sleeved with the spiral spring, the tail cover is screwed on the shell through threads, a through hole is formed in the center of the tail cover, and hole threads are arranged on the inner side of the through hole. The pre-tightening nut is assembled on a hole thread on one side of the tail cover, the depth of the pre-tightening nut is adjusted through the thread, and then the initial elastic force of the spiral spring is adjusted. The contact type sensor is assembled on a hole thread on the other side of the tail cover; after the contact probe is triggered, the contact probe moves towards the probe piston and contacts with the probe piston, the spiral spring is compressed, the probe piston is pushed towards the direction of the contact type sensor, and then the contact type sensor is started to generate a control signal. And the material boat in-place sensor is integrally sealed. The material boat in-place sensor is arranged outside the sintering furnace, the real position of the material boat in the sintering furnace can be directly measured, the problem of false triggering of non-contact detection caused by environment change in the furnace is avoided, online maintenance and setting can be conducted outside, and the reliability of long-period operation of the material boat in-place sensor is guaranteed.
Owner:CNNC JIANZHONG NUCLEAR FUEL

A low-cost sensor-based positioning and navigation method for quadruped robots

PendingCN122448227AOdometryComputer vision
The application discloses a kind of low-cost sensor-based quadruped robot positioning navigation method, belong to robot autonomous navigation technical field;First, construct hybrid internal mode, explicit regression linear velocity from ontology perception sequence and implicit encode external disturbance features by SimCLR contrast learning;Second, design sliding mode generalized momentum observer, only use joint torque to estimate foot end contact state, discard foot end contact sensor;Further construct leg inertia odometry LIO, fusion support leg kinematics constraint and IMU angular velocity, robust estimation body 6 degrees of freedom velocity;Propose IMU adaptive deep slice method, according to roll and pitch angle dynamic correction scan line, generate anti-jitter 2D scan;Finally, multi-sensor information fusion: when VIO fails, use LIO integral prediction pose reinitialization;New speed constraint factor is added in factor graph, suppresses mismatch drift.
Owner:SHAOXING MINDONG TECH CO LTD

Non-contact leak detection

PendingUS20260194411A1Electronic systemsLeak detection
Systems and methods are directed to a leak detection system that incorporates non-contact sensors to detect leaks. The leak detection system may include local power supplies that may provide operational power to the non-contact sensors when remaining components, such as those associated with racks or electronic systems, are shipped, stored, or otherwise not provided with an external power supply. Low-powered non-contact sensors may particularly target small viewing areas for leak detection.
Owner:NVIDIA CORP

Rotor core inner diameter counterbore detection mechanism

The utility model discloses a rotor iron core inner diameter counterbore detection mechanism, including the bottom plate, the upper end of bottom plate is located at the left side position and is installed manual reversing valve, uses, places the bottom plate on any workbench, then will put into the positioning fixture inside rotor, and the manual reversing valve is pulled and ventilates, and the detection fixture is driven to move down to the rotor inner diameter counterbore and is detected, if the detection fixture passes through the rotor inner diameter and will touch the contact sensor, and the contact sensor will send the signal to the alarm lamp and start the alarm and prompt the unqualified product, otherwise, the product is eligible, then again pull the manual reversing valve and stop the air, and the pen-shaped air cylinder returns to the original position, and the unqualified product alarm function is added in the overall structure, reduces the risk of the misjudgment of the operator fatigue, and the device can detect the rotor iron core inner diameter counterbore more quickly and accurately, effectively improves the production efficiency of product and prevents the outflow of defective products.
Owner:苏州博特蒙电机有限公司

A filling device with anti-overflow function

This utility model relates to the field of filling equipment technology, specifically to a filling device with an anti-overflow function. It includes a movable shell with a lead screw and nut slidably connected inside. The height of the contact sensor can be adjusted by a sliding sleeve to accommodate different filling heights. When the sliding sleeve moves, it simultaneously drives the connecting rod, follower block, and movable sleeve to move. The movable sleeve then slides on the outer surface of the adjusting rod. After the sliding sleeve reaches the appropriate position, a positioning rod slides through a movable hole, inserting into one of the positioning slots to fix the follower block. This, in turn, fixes the positions of the connecting rod, sliding sleeve, and multiple contact sensors. The filling device then fills the container. When liquid touches the contact sensor, a signal is transmitted to the outside, stopping the filling and preventing liquid from overflowing from the container.
Owner:GUANGZHOU YANDUO COSMETICS TECH CO LTD

A buckle fastening in place detection tool

The utility model discloses a buckle is buckled to the detection frock of in -place, including base, the base top assembly connection has the built -in product's cavity block, and the movable inlay of cavity block is equipped with aluminum cavity, the product is respectively with cavity block and aluminum cavity inner wall and is spliced together, cavity block both sides are equipped with the pair of light fiber emitter and the pair of light fiber receiver, and the pair of light fiber emitter, the pair of light fiber receiver corresponding pair of holes are equipped with in aluminum cavity both sides and are penetrated, install two -color lamp on the cavity block, in the utility model, through setting up base, cavity block, aluminum cavity, the pair of light fiber emitter and the pair of light fiber receiver, compared with prior art, not only has spared the complex calibration process of traditional contact type sensor, has shortened the detection response time, still can through the mode of replacing cavity block and aluminum cavity, to satisfy the detection demand of different model products, has expanded the application range, has reduced the production cost, has improved practicality.
Owner:SHANGHAI XINGPEI ELECTRONIC TECHNOLOGY CO LTD

Tool magazine, turning-milling combined machining center and self-compensation control method

This invention relates to the field of machining technology, and provides a tool magazine, a mill-turn machining center, and a self-compensating control method. The tool magazine includes: a lower frame configured to be fixedly connected to the bed of the machining center; an upper frame hinged to the lower frame on one side along the X-axis, allowing the upper frame to swing relative to the lower frame around the hinge center, with an installation space formed within the upper frame; a tool module including a drive mechanism and a tool clamping mechanism, the drive mechanism being fixedly connected to the upper frame, and the tool clamping mechanism being drively connected to the output end of the drive mechanism to drive the tool clamping mechanism to switch between an initial position and a tool change position along the Z-axis; and a built-in measurement system including a rotary axis, a probe arm, a probe, a trigger push rod, a positioning ball, and a contact sensor. This invention is used to achieve stable clamping and reliable automatic exchange of ultra-long tools under the weakly rigid installation conditions of a mill-turn machining center.
Owner:GENERAL TECH GRP MASCH TOOL ENG RES INST CO LTD DALIAN BRANCH

Hygienic clamp with position feedback

This application relates to a hygienic clamp with a non-contact sensor. The clamp may also include a first clamp arm, a second clamp arm, and a hinge to movably join the first clamp arm and the second clamp arm. The non-contact sensor can sense whether the clamp is closed by detecting the proximity of one arm of the clamp to its other arm, without requiring the two arms to contact one another. Since the non-contact sensor is not mechanical, no mechanical wear is produced. It is constructed to prevent build-up that can occur with other types of sensors in industries that use clamps in their applications.
Owner:TOURGEE & ASSOCS

Intaglio printing apparatus

ActiveCN224296789URotary intaglio printing pressRubber ringMechanical engineering
The utility model discloses a kind of gravure printing devices, including ink tank and the printing roller being set to its above, the utility model is connected to external control host by contact sensor, immersion sensor and electric push rod, realize intelligent control, the push plate is lifted by telescopic shaft to control, ink inside ink tank is pushed and lifted, the density of push plate side and ink tank inner wall contact is increased by sealing rubber ring, prevent ink drop to the below of push plate, so that printing roller can be immersed in gradually reduced ink, and then the bottom ink in ink tank can be used, prevent it from causing deposition due to long time not being used, the highest position of push plate is limited by contact sensor, simultaneously control the electromagnetic valve of ink inlet, external ink supply pump is connected by ink inlet, and then ink is supplied to the inside of ink tank, the liquid level of ink is sensed by immersion sensor, and then telescopic shaft pushes push plate to lift.
Owner:SHANGHAI SHIYOU DIGITAL GRAPHICS DESIGN & PRODUCTION CO LTD

Printer and method for positioning medium

PCT designated stageWO2026141281A1Computer printingTesting Methods
This printer 10 comprises: a placement table 20 on which a medium 5 is placed; a recording head 40 provided above the placement table 20; a first moving device 25Z that moves the placement table 20 in a vertical direction Z; a non-contact sensor 70 that detects, without physical contact, the position in the vertical direction Z of a medium 5 placed on the placement table 20; a contact sensor 80 that is provided with a contact part 81, which comes into contact with the medium 5, and that detects the position in the vertical direction Z of the medium 5 by detecting the contact of the medium 5 with the contact part 81; and a control device 100. The control device 100 raises the placement table 20 until the medium 5 reaches a lower control position Pl set below the contact part 81 on the basis of the detection of the non-contact sensor 70, and then raises the placement table 20 until the medium 5 comes into contact with the contact part 81 on the basis of the detection of the contact sensor 80.
Owner:ROLAND DG CORP

Detection device for fence terminal

The technical problem this invention aims to solve is to provide a testing device for fence-type terminal blocks. This device uses a data-driven approach to determine whether the conductive sheet assembly and the housing are properly assembled, effectively improving testing efficiency and reducing false positives. The device includes a slide cylinder; a mounting base is provided on the slide block of the slide cylinder; a contact sensor is provided on the mounting base; a probe connector is provided at the lower end of the contact sensor; two probes are provided on the probe connector; a mounting structure is provided on the side wall of the slide cylinder; the slide cylinder slides downwards, causing the contact sensor to move downwards, allowing the two probes to contact the two conductive sheet assemblies of the assembled product. The contact sensor analyzes the probe data to determine whether the two conductive sheet assemblies and the housing are properly assembled using a data-driven approach. Both probes can simultaneously test both conductive sheet assemblies.
Owner:JITE IND (SHENZHEN) CO LTD

A C-shaped lifting tool clamping device for lifting a steel column

The present invention relates to the technical field of hoisting equipment, and specifically relates to a C-type sling clamping device for steel column hoisting, which includes sling arms hinged at both ends of a bearing main beam. A clamp is fixedly connected to the end of the sling arm. The clamp includes an outer frame, a contact sensor, a first slide plate, a second slide plate and a third slide plate. A gear is rotatably connected inside the outer frame. The second slide plate is fixedly connected with a rack and elastically connected to the outer frame. The rack, the first slide plate and the third slide plate are all meshed with the gear. Active friction belts are rotatably connected to the surfaces of the first slide plate and the third slide plate. A Hall sensor and an elastic telescopic protruding roller are arranged inside the second slide plate, and a magnetic ring corresponding to the Hall sensor is arranged on the surface of the roller; through the rolling of the friction belt, the controlled sliding of the steel column to be hoisted relative to the clamp is used to actively migrate the center of gravity, so as to dynamically adjust the center of gravity. Through the synchronous centering and clamping of the protrusions of the second slide plate, the downward displacement of the steel column is monitored in a targeted manner, and the hydraulic auxiliary hook is triggered to pop out in cooperation to achieve linkage protection.
Owner:CHINA CONSTR SECOND ENG BUREAU LTD

Method and system for locating low-voltage cable leakage fault point, electronic equipment and medium

The present application relates to the technical field of power system fault detection, and particularly relates to a low-voltage cable electric leakage fault point positioning method and system, electronic equipment and medium; the method comprises: in response to a trigger signal of an electric leakage fault, acquiring fault line section information of the electric leakage; injecting a target current signal into a fault cable corresponding to the fault line section information; after injecting the target current signal into the fault cable, using a non-contact sensor to collect a magnetic field signal along a path direction of the fault cable, and converting the magnetic field signal into an electric signal; determining the position of the low-voltage cable electric leakage fault point according to a signal strength mutation point of the electric signal. In this way, the technical problem of insufficient non-contact measurement accuracy in the existing electric leakage fault positioning technology is solved, and the accuracy, safety and efficiency of fault positioning in complex environments, especially in the dark cable laying scene, are improved.
Owner:LONGQUAN POWER SUPPLY CO OF STATE GRID ZHEJIANG ELECTRIC POWER CO LTD

System for a rotor sensor

Systems are provided for a transformer of an electric machine. In one example, an externally excited electric machine includes a non-contact sensor that is mounted on a stationary ferromagnetic core of a transformer and a solenoid coil coupled to a rotating ferromagnetic core of the transformer. The sensor is a stationary sensor.
Owner:DANA AUTOMOTIVE SYST GRP LLC

A switch intelligent inspection device

ActiveCN224447761URail inspectionStructural engineering
This utility model provides an intelligent turnout inspection device, belonging to the field of turnout inspection technology. This intelligent turnout inspection device includes sleepers and rails. An inspection vehicle is mounted above the rails. An equipment slot is formed on one side of the inspection vehicle, and a high / low insertion inspection mechanism is installed inside the equipment slot. A rail inspection mechanism is installed on one side of the high / low insertion inspection mechanism. When an unevenness occurs at the connection point of two rails, the contact frame moves upward, causing the first and second socket brackets to rotate on the outer surface of the fixed shaft towards the housing. This, in turn, causes the movable plate and the clamping plate to move towards the interior of the housing, so that the bottom surface of the clamping plate contacts the contact sensor. The contact sensor transmits a signal to the server to form a mark. By using the speed of the inspection vehicle, the approximate area can be calculated, allowing maintenance personnel to be dispatched for repairs, thus improving the efficiency and accuracy of the inspection.
Owner:LANZHOU JIAOTONG UNIV