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97results about How to "Easy to find faults" patented technology
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ISG type multifunctional electronic urgent safety clamp
The invention relates to an elevator comprising an elevator car that is guided inside an elevator shaft on guide rails. Said elevator also comprises electronics for inter alia travel control or regulation and an emergency braking device for preventing excess speed of the elevator car. Said emergency braking device has a braking device and a detector unit (11) the signal of which actuates the braking device when the elevator car reaches an excess speed. The detector unit (9, 11) comprises at least two wheels (8) that rest against a guide rail (2), each driving a respective detector (11) the signal of which is a measure for the rotational angle or rotational speed of the corresponding wheel. The electronics are adapted to functionally utilize the detector signal.; For this purpose, at least one detector signal is used during operation of the elevator within the admissible speed range for determining at least travel, speed and / or acceleration variable of the elevator car influencing the operation of the elevator system. The electronics actuate the braking device as soon as at least one of the detectors (11), by way of its detector signal, indicates an excess speed of the elevator car outside the admissible speed range.
Owner:WITTUR
Sanding device for railway vehicles
The invention relates to a sanding device for railway vehicles. The sanding device comprises a sand box, a sanding unit and a sanding control module, wherein the sanding unit comprises a sander and a sand blasting pipe, the sander is installed at the bottom of the sand box and is communicated with the sand box, and a sanding heating box is connected between the sander and the sand blasting pipe; the sanding control module comprises an air channel board, and a sanding solenoid valve, a drying solenoid valve and a pressure reducing valve are installed on the air channel board, wherein the sanding solenoid valve is connected with a sanding wind inlet arranged in the sander through an air channel pipe, the drying solenoid valve is connected with a drying wind inlet arranged in the sander through the air channel pipe, and the pressure reducing valve is connected with a wind supply pipeline. The sanding device has a compact structure and is convenient for fault finding and maintenance. The amount of sanding can be regulated, and the sanding device has a drying function and can prevent sand in the sand box from hardening due to damp. The sanding device has a heating function and can prevent a sanding pipe from freezing at low temperature. The sanding device has an isolating function, and the sander can be switched off by a person in a fault. The sanding device has a testing function and can detect the pressure value of a system during debugging.
Owner:CRRC QINGDAO SIFANG ROLLING STOCK RES INST
Intelligent monitoring dynamic alarm system of anti-technical net
InactiveCN101083013AImplement automatic detectionAccurate recordRoad vehicles traffic controlBurglar alarmCatalogingMonitoring system
The invention discloses an intelligent monitor dynamic alarming system of technique-proof net, which comprises the following parts: collective storing system, customer end monitoring system, intelligent traffic system, electronic terror-proof system, video resource file managing system, wherein the alarming signal is generated by electronic terror-proof system and intelligent traffic system, which is transmitted into collective storing system to do video recording; the signal is transmitted to the customer end monitoring system simultaneously to display alarming position and real-time video information on the electronic map, which is stored into the database through self-cataloging disposal of video resource file managing system to form an organic integral system. The invention realizes self-detection of automobile to obtain the photo of license plate effectively and clearly at daytime or night, which can store the data for a long time to update automatically.
Owner:天津城信通网络技术有限公司
Method for obtaining MAC address by communication apparatus and communication system
InactiveCN1905510AEasy to configureGuaranteed correctnessNetworks interconnectionCommunications systemPosition Number
The invention discloses a method of obtaining MAC address for communication equipment and the communication system thereof, where the MAC address comprises port number, tank position number and frame number. And the method comprises the steps of: communication equipment sends a request message for obtaining frame number to upper communication equipment; the upper network equipment receives and answers the request message and makes a response message carry the frame number; the upper network equipment issues the response message to the network equipment; the network equipment obtains the frame number according to the response message and combines with the obtained port number, tank position number and main-backup / non-main-backup tag value to complete MAC address configuration. Thus, it realizes that communication network automatically completes MAC address configuration of all communication equipment in system and assures MAC configuration accuracy.
Owner:GLOBAL INNOVATION AGGREGATORS LLC
Infrared three-dimensional thermal imaging scanning system
ActiveCN103315716AEasy to find faultsIntegrity guaranteedDiagnostic recording/measuringSensorsData acquisitionInfrared thermal imaging
An infrared three-dimensional thermal imaging scanning system comprises an erect support. A lifter is disposed on the erect support. An annular support is connected to the lifter. A rotating ring is disposed on the annular support. A circumferential-direction drive mechanism is disposed between the rotating ring and the annular support. At least two infrared thermal imaging sensors are arranged on the rotating ring. Each optional infrared thermal imaging sensor is connected with a data acquisition device through a signal line. A temperature calibrator is disposed at the top of the erect support. Infrared transmitters are disposed on the rotating ring. The infrared three-dimensional thermal imaging scanning system has the advantages that at least two infrared thermal imaging sensors and infrared transmitters are disposed on the periphery of a to-be-scanned object serving as a central point, the lifter and the rotating ring are used to control the infrared thermal imaging sensors to move up and down and rotate on a plane, scanning of a to-be-scanned human body is achieved without movement of the human body, scanning accuracy and speed are increased greatly, and infrared thermal imaging sensors failed in updating can be discovered timely.
Owner:麦柯尔智能科技(苏州)有限公司
Novel-cable intermediate-joint explosion-proof apparatus
ActiveCN105576596ATake up less spaceDoes not affect cast workCable junctionsEngineeringMechanical engineering
A novel-cable intermediate-joint explosion-proof apparatus is disclosed. By using the provided novel-cable intermediate-joint explosion-proof apparatus, the structure is simple, installation is convenient and safety is increased. The apparatus comprises a protection tube, an explosion-proof tube, a thermal shrinkage sealing cap, one pair of reinforcing assemblies and one pair of thermal shrinkage sheaths. The explosion-proof tube is connected to the protection tube and is arranged in a center of the protection tube. The thermal shrinkage sealing cap sleeves a pipe orifice of the explosion-proof tube. The pair of reinforcing assemblies is symmetrically arranged and is located at two end pipe orifices of the protection tube. The reinforcing assemblies are connected between a cable and the protection tube. The pair of thermal shrinkage sheaths is arranged on two end pipe orifices of the protection tube respectively. The thermal shrinkage sheaths successively sleeve the protection tube, the reinforcing assemblies and the cable. The apparatus is convenient to be processed and cost is low.
Owner:YANGZHOU JIANGDU POWER SUPPLY COMPANY OF JIANGSU ELECTRIC POWER +2
Data processing method and device applied to bank batch processing
ActiveCN105677465ARealize running batch processingShort response timeProgram initiation/switchingDatabase management systemsBatch processingControl table
The invention discloses a data processing method and device applied to bank batch processing. The data processing method comprises that a target subsidiary bank is determined in dependence on a batch control table, the target subsidiary bank is a subsidiary bank which carries out batch processing in the current day, the batch control table comprises batch dates of all subsidiary banks, the following steps are executed repeatedly until the batch processing is finished: the batch state of the target subsidiary bank is determined in dependence on the batch control table, the batch control table comprises batch states of all subsidiary banks, pre-configured processing corresponding to the batch state is executed in dependence on the batch state of the target subsidiary bank, and the batch state of the target subsidiary bank in the batch control table is updated in dependence on the processing result. According to the invention, the bank batch processing can be achieved automatically, sequentially and accurately in short response time, and the batch processing efficiency can be improved.
Owner:CHINA CONSTRUCTION BANK
Multi-disk-cabin hard disk array system consisting of double-layer controller
ActiveCN102103468AImprove protectionAchieving a second level of protectionInput/output to record carriersRAIDUsability
The invention discloses a multi-disk-cabin hard disk array system consisting of a double-layer controller. The system comprises an RAID (Redundant Array of Independent Disk) main system and at least one RAID subsystem, wherein the RAID main system is connected with all RAID subsystems through hard disk interfaces; each RAID subsystem comprises at least one hard disk and a controller; the controller is used for managing the hard disk, protecting hard disk data and providing a virtual storage space for the RAID main system; the RAID main system comprises a controller for uniformly managing storage spaces, provided by all RAID subsystems, serving as independent hard disks; and different RAID levels are configured to provide storage spaces for a user. By adopting the multi-disk-cabin hard disk array system, the technical problems of long recovery time and influence on system usability, caused by the need of calculating relevant data of an entire hard disk array for data recovery when one hard disk or subsystem in the hard disk array system fails, in the prior art are solved, and the system is particularly suitable for storing mass data.
Owner:NO 15 INST OF CHINA ELECTRONICS TECH GRP
Optical fiber network based high speed meter reading system and method
InactiveCN104599481AImprove communication bandwidthShort construction periodNon-electrical signal transmission systemsMicrocontrollerFiber network
The invention relates to an optical fiber network based high speed meter reading system, which comprises a concentrator, an Ethernet passive optical network and an optical fiber ammeter. A communication channel is established between the concentrator and the optical fiber ammeter through the Ethernet passive optical network. The optical fiber ammeter includes an optical network unit, a microcontroller and a monitoring unit. The optical network unit and the monitoring unit are both connected to the microcontroller. The monitoring unit transmits optical fiber ammeter data to a microprocessor, and the microprocessor transmits the optical fiber ammeter data to the concentrator so as to reach the beneficial effect of greatly improving the meter reading efficiency.
Owner:南昌市科陆智能电网科技有限公司
Single power supply 10-kilovolt circuit protection three-stage configuration and fixed value setting method
ActiveCN106998061AAchieve full protection cooperationEasy to distinguishParameter calibration/settingThree stageElectrical and Electronics engineering
Disclosed is a single power supply 10-kilovolt circuit protection three-stage configuration and fixed value setting method. Two section switches are arranged on a 10kV circuit main line, and three-stage protection configuration is performed for protecting a circuit with a length of greater than 6km; the circuit distance of three-stage switches is not less than 2km; a second-stage switch and the third-stage switch on the main line are positioned close to positions of three dividing points on the main line; and then the first-stage switch, the second-stage switch and the third-stage switch are subjected to protection fixed value setting, and reclosure is set. The three-stage protection configuration and fixed value setting method for the 10kV single power supply circuit powered by 110kV and 220kV is proposed; the circuits of each stage of protection fixed values is set by the setting method, so that complete protection matching of circuit sections can be realized; in faults, a fault range can be greatly reduced; and by matching with reclosure setting, a fault-less region can be recovered within the shortest time.
Owner:STATE GRID JIANGXI ELECTRIC POWER CO LTD RES INST +1
Network frame loss processing method of CAN (Controller Area Network) bus
InactiveCN102013943AEnsure driving safetyEasy to find faultsError preventionBus networksFault toleranceArea network
Owner:ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD +1
A private cloud management platform system and a task processing method thereof
InactiveCN109067600AImprove reliabilityEasy to find faultsData switching networksBasic serviceDependability
The invention discloses a private cloud management platform system, comprising a cloud management platform, a gateway and a plurality of computing nodes. A gateway, configured to receive an external request and distribute the external request to a corresponding computing node. A computing node, configured to execute corresponding basic services according to the received external request content. The cloud management platform is used for monitoring and counting the service processing information of each computing node and carrying out the management operation of the private cloud management platform system according to the service processing information. The invention transfers the basic service originally undertaken by the cloud management platform to the computing node for processing, thus sharing the pressure of the cloud management platform and improving the stability and reliability of the private cloud management platform system. The invention also discloses a task processing method based on the private cloud management platform system.
Owner:ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
Water turbine running state identification method
ActiveCN111259864AProminent featuresImprove decomposition abilityHydro energy generationCharacter and pattern recognitionWater turbineControl engineering
Owner:HARBIN UNIV OF SCI & TECH
Online energy-taking monitor of drop-out fuse
PendingCN107026481AExtended use timeSolve the problem of taking electricity at workBatteries circuit arrangementsFuses testingCapacitanceMicrocontroller
The invention relates to an online energy-taking monitor of a drop-out fuse. The online power-taking monitor comprises a main engine and an auxiliary engine which are both mounted on a tested circuit; the main engine and the auxiliary engine take electric energy from the tested circuit from respective online high-voltage energy-taking power supply modules; in power failure, supplying of a working power supply for other electrical elements in the machine is performed in a delayed manner; the auxiliary engine and the main engine are in wireless data transmission; the main engine and an upper computer are in wireless communication; in the main engine, the input end of a single chip microcomputer is connected with a first fuse position detection module and a wireless receiving module; the single chip microcomputer is in bidirectional transmission connection with the first online high-voltage energy-taking power supply module; and the output end of the single chip microcomputer is in wireless communication with the upper computer through a GSM module. By taking a supercapacitor as a back-up power supply, the service time of the monitor can be prolonged for 15-20 years; the problems existing in energy-taking of the online monitoring system are solved; and information of short circuit, overload and the like of branches and main lines and transformers of a power distribution line can be obtained in time, so that great convenience is brought to fault searching of maintenance and inspection staffs.
Owner:WUHAN NEW ENERGY TECH DEV +1
Convenient-to-maintain streetlamp
InactiveCN109519824AEasy maintenanceImprove securityMechanical apparatusLighting support devicesEngineeringRoad traffic
The invention relates to the technical field of streetlamps, in particular to a convenient-to-maintain streetlamp. The convenient-to-maintain streetlamp comprises a supporting base lamp pole, a lifting lamp pole, a folding bracket and a lamp body, wherein the folding bracket is mounted on the lifting lamp pole; the lamp body is fixedly arranged on the folding bracket; and the supporting base lamppole is equipped with a controller and a lifting motor. The convenient-to-maintain streetlamp is convenient for maintenance and repair of a lamp tube of the streetlamp, and does not cause influences on road traffic in a maintaining process; besides, staff overhead operation is further avoided, and construction safety is improved.
Owner:洪睿涵 +1
System for intelligently recovering heat of waste hot water in residential area
InactiveCN110822768AImprove stabilityImprove recycling efficiencyMechanical apparatusHeat pumpsWater storage tankWastewater
The invention provides a system for intelligently recovering heat of waste hot water in a residential area. The system comprises a waste water storage tank, a hot water storage tank and a heat pump, wherein the heat pump is respectively connected with the waste water storage tank and the hot water storage tank; the waste water storage tank, the hot water storage tank and the heat pump are all connected with an intelligent control system; the intelligent control system comprises an information acquisition device, a main control module, a valve control module and a water pump control module; themain control module is respectively connected with the information acquisition device, the valve control module and the water pump control module through a communication module; and the information acquisition device is respectively connected with the waste water storage tank, the hot water storage tank and the heat pump through the communication module. According to the system, the main controlmodule is used for processing the data transmitted by a sensor to predict the water consumption, so that the recovery efficiency of the heat of the waste hot water is improved; and a deep learning algorithm is used for carrying out fault diagnosis for the system, so that equipment faults are found conveniently, workers are reminded of carrying out equipment maintenance in time, and the stability of the system for intelligently recovering the heat of the waste hot water is improved.
Owner:HENAN UNIVERSITY
Communication switch
InactiveCN107317772AEasy to installQuick installationCasings/cabinets/drawers detailsData switching networksPower switchingControl engineering
The invention discloses a communication switch, which comprises a casing, a top plate chute, a control panel, a cushion and a buffer spring, wherein a handle is arranged at the upper end of the casing; the casing is fixedly connected to the handle; a sidewall is arranged at one side of the casing; the casing is fixedly connected to the sidewall through the top plate chute; a cross-shaped installation clamp is arranged at the upper surface of the casing; a circuit board is arranged at one side of the cross-shaped installation clamp; the circuit board is fixedly connected to the casing through the cross-shaped installation clamp; a power switch and a work indicating lamp are arranged on the upper surface of the control panel; the control panel is fixedly connected to the work indicating lamp; a control switch is arranged at one side of the power switch; and the control switch is fixedly connected to the control panel. The communication switch with a cooling fan, the cushion and the control switch has simple structure, convenience for installation and high assembly efficiency and is suitable for different work conditions, and the better application prospect is brought.
Owner:SUZHOU INGRAM INFORMATION TECH CO LTD
Prosthesis system and method for checking the functionality of a prosthesis system
ActiveCN111031970APrecisely differentiate signal patternsSimplify the maintenance processDiagnostic recording/measuringSensorsPhysical medicine and rehabilitationControl signal
The invention relates to a prosthesis system comprising at least two sensors (10), at least one controller (30) which is coupled to the sensors (10) and processes sensor signals of the sensors (10), at least one actuator (70) which is coupled to the controller (30) and can be activated or deactivated on the basis of control signals of the controller (30), and at least one movably mounted prosthesis component (60) which can be moved by the actuator (70). A standard program is stored in the controller (30) or can be retrieved by the controller, said program assigning an actuator action to each sensor (10) regardless of the duration and / or intensity of the sensor signal.
Owner:OTTO BOCK HEALTHCARE PROD GMBH
Cable joint reinforcing device
ActiveCN107104413ATake up less spaceDoes not affect cast workCable junctionsMechanical engineeringEngineering
Owner:YANGZHOU JIANGDU POWER SUPPLY COMPANY OF JIANGSU ELECTRIC POWER +2
Comprehensive management system for network operation and maintenance
PendingCN112688819ARealize unified managementAchieving Unified PresentationHardware monitoringData switching networksData transformationStatistical analysis
The invention discloses a comprehensive management system for network operation and maintenance, relates to the technical field of network operation and maintenance, and aims to solve the problems that faults of a huge network system are not easy to find, diagnose and repair, no accurate data is used for scientific fault analysis, network equipment and a server are manually monitored, and time and labor are comsumed. The monitoring management system comprises a data acquisition module, a data processing module and a data output module, the output end of the data acquisition module is connected with the input end of the data processing module, and the output end of the data processing module is connected with the input end of the data output module. The data acquisition module comprises configuration data acquisition, performance data acquisition and alarm data acquisition, the data processing module comprises configuration data conversion, event processing analysis and alarm analysis, and the data output module comprises a network topological graph, real-time monitoring, statistical analysis, report analysis, event statistics, data release and alarm presentation.
Owner:南京岩磊智能化科技有限公司
Cable branch box
InactiveCN102856851AEasy to find faultsFind faults quicklyElectrical apparatusMicrocomputerFault indicator
The invention discloses a cable branch box and relates to the field of distribution systems. The cable branch box comprises a cable chamber (1), a bus chamber (2), an anti-explosion anti-theft box body (3), a rainproof shade (4), a potential indicator (5), a fault indicator (6) and a microcomputer controller (7), wherein the cable chamber (1) is arranged at the lower part of the anti-explosion anti-theft box body (3); the bus chamber (2) is arranged at the middle part of the anti-explosion anti-theft box body (3); the rainproof shade (4) is arranged at the top part of the anti-explosion anti-theft box body (3); the potential indicator (5) and the fault indicator (6) are arranged on the anti-explosion anti-theft box body (3); and the potential indicator (5) and the fault indicator (6) are both connected with the microcomputer controller (7). The cable branch box is simple in structure, high in security and reliability, and convenient in installation and operation, and is convenient for working personnel to find out the faults rapidly.
Owner:KUNSHAN YONGFENG ELECTRIC EQUIP
Infrared Stereo Thermal Imaging Scanning System
ActiveCN103315716BEasy to find faultsIntegrity guaranteedDiagnostic recording/measuringSensorsData acquisitionThermography
An infrared three-dimensional thermal imaging scanning system comprises an erect support. A lifter is disposed on the erect support. An annular support is connected to the lifter. A rotating ring is disposed on the annular support. A circumferential-direction drive mechanism is disposed between the rotating ring and the annular support. At least two infrared thermal imaging sensors are arranged on the rotating ring. Each optional infrared thermal imaging sensor is connected with a data acquisition device through a signal line. A temperature calibrator is disposed at the top of the erect support. Infrared transmitters are disposed on the rotating ring. The infrared three-dimensional thermal imaging scanning system has the advantages that at least two infrared thermal imaging sensors and infrared transmitters are disposed on the periphery of a to-be-scanned object serving as a central point, the lifter and the rotating ring are used to control the infrared thermal imaging sensors to move up and down and rotate on a plane, scanning of a to-be-scanned human body is achieved without movement of the human body, scanning accuracy and speed are increased greatly, and infrared thermal imaging sensors failed in updating can be discovered timely.
Owner:麦柯尔智能科技(苏州)有限公司
Control method of programmable logic controller
ActiveCN108932125ARealize stand-alone operationEasy programmingVisual/graphical programmingCode compilationGraphicsProgrammable logic controller
The invention relates to a control method of a programmable logic controller. The method includes a method for controlling a programmable logic controller (PLC) by configuration programming using electrical and instrumentation national standard graphic symbols. By dragging symbols in a built-in graphic symbol library of a device, a program in a paper pattern electric installation style is rapidlyconfigured, and then the graphic symbols which are completed in configuration are corresponding to switching quantity input and output ports and analog quantity input and output ports of the programmable logic controller, to realize collection and port control actions. The method enables an electrical designer to configure and program a design program in the form of an electric installation drawing, to realize control of programmable logic controller. Configuration programming is simple and intuitive, and can replace ladder diagrams, sentence tables and other tedious programming methods currently used in automation engineering, so as to reduce time cost for projects, reduce difficulty of construction technology for engineering technicians, and provide a visual and simple programming interface for later maintenance personnel to modify and add ports.
Owner:闫伟
Energy-saving environment-protecting material sucking and drying all-in-one machine
ActiveCN110341119ARealize the main function of automatic integrated vacuum suction dryingLarge air volumeAir volumePipe fitting
The invention discloses an energy-saving environment-protecting material sucking and drying all-in-one machine. The machine is composited of a material barrel main body, a fan, a pulsation switching exhaust mechanism, a heater, an electrical control system, a connecting pipe fitting and other components. According to the material sucking and drying all-in-one machine, an air cylinder of the pulsation switching exhaust mechanism is controlled to act through the electrical control system, so that the circulating process such as internal vacuum material sucking and feeding, air flow heating and drying the materials, hot air recycling through filtering and refluxing, and dust filtering, cleaning, bag collecting in materials in the material barrel are carried out; in the process, the electricalcontrol system receives and processes signals feedback from sensor switch such as air pressure, temperature and material level, so that the intelligent control of the drying air volume and the heating temperature in the material processing process is realized, and the energy-saving effect is remarkable; according to the material sucking and drying all-in-one machine, a blanking device adopts a rotary disc sealing type blanking structure, so that the sealing effect is good, and the operation is convenient; and metal impurities in the materials can be effectively adsorbed by the arrangement ofa magnetic column, the metal impurities can be timely removed through a cleaning window, so that the injection molding quality of products is ensured, and the use safety of an injection molding machine is ensured.
Owner:温州市鸿燊自动化有限公司
A new type of explosion-proof device for intermediate joints of cables
ActiveCN105576596BTake up less spaceDoes not affect cast workCable junctionsEngineeringMechanical engineering
Owner:YANGZHOU JIANGDU POWER SUPPLY COMPANY OF JIANGSU ELECTRIC POWER +2
Intelligent power distribution cabinet
InactiveCN103138389ADisplay status characteristics in real timeSimple structureCircuit arrangementsSmart moduleControl circuit
The invention discloses an intelligent power distribution cabinet, wherein an intelligent module is arranged in the power distribution cabinet. The intelligent module is composed of a synchronizing current detection circuit, a synchronizing voltage detection circuit, a digital microprocessor DSP (Digital Signal Processor) and a control circuit. The synchronizing current detection circuit and the synchronizing voltage detection circuit transmit detected current signals and voltage signals to the digital microprocessor DSP in real time. The digital microprocessor DSP judges the detected current signals and voltage signals and transmits control instructions to the control circuit. The intelligent power distribution cabinet utilizes the high-performance digital microprocessor DSP, discards clock circuits, interface circuits and AD (analog to digital) conversion circuits, is simple in structure and has good control performances.
Owner:大连金州电器有限公司
Fault recording device state visual monitoring system and monitoring method
PendingCN111323675ARealize online monitoringEasy to find faultsFault locationVisual monitoringOptical power
The invention discloses a fault recording device state visual monitoring system and monitoring method, and the system comprises a state collection unit which is disposed on a recording case interfaceboard and is used for collecting the state data of a fault recording device in real time, and transmitting the state data to a data processing unit; a data processing unit arranged on the wave recording case core board and used for receiving and storing the data transmitted by the state acquisition unit, analyzing and processing the received data and transmitting the data to an upper computer; andan upper computer which is in communication connection with the state acquisition unit and the data processing unit and is used for displaying the data transmitted by the data processing unit. According to the fault recording device state visual monitoring system, the defects that an existing product has no optical power data on-line monitoring capacity and the visualization degree of a recordingfile is low are overcome by improving the equipment fault monitoring capacity of a VBE system.
Owner:STATE GRID NINGXIA ELECTRIC POWER +3
Elevator safety device and elevator
PendingCN111377323AAchieve anti-blocking protectionImprove securityElevatorsBuilding liftsControl engineeringMechanical engineering
The invention discloses an elevator safety device and an elevator. The elevator safety device comprises a through door lock detection loop and a monitoring module, wherein the through door lock detection loop comprises normally open contacts and normally closed contacts of at least three relays and at least four door lock short circuit detection points located between a front end port of an elevator safety door lock section and a tail end port of the door lock section; and the monitoring module comprises coils of the at least three relays and a control unit, and the monitoring module controlsthe attraction or release state of the coils of the at least three relays and monitors the charged state of the at least four door lock short circuit detection points to detect the short circuit stateof a through door lock.
Owner:THYSSENKRUPP ELEVATORS SHANGHAI CO LTD
Device and method for detecting integrity of CT secondary circuit
InactiveCN110488137AReduce workloadReduces the risk of burning out terminals due to heatElectrical testingElectrical resistance and conductanceContact failure
The invention discloses a device and method for detecting the integrity of a CT secondary circuit. The detection principle is that the integrity of each phase of a current circuit can be judged by comparing the current data with each other according to the principle that three-phase electrical parameters of each group of CT circuits are completely symmetrical and that characteristic that the resistance of the CT circuits is extremely small. According to the device and the method provided by the invention for detecting the integrity of the CT secondary circuit, the integrity of the ABC three-phase current circuit can be judged only by disconnecting the wiring terminal on one side of the N-phase connecting piece, so that the workload is greatly reduced, the operation mode that a connecting piece needs to be disconnected and the CT secondary circuit needs to be switched on and off at the left and right sides is changed, and the risk of poor contact is greatly reduced; based on the principle that the electrical parameters of the CT secondary circuit are completely symmetrical, the three states of disconnection, poor contact and complete connection of any circuit can be accurately judged, faults can be found conveniently during acceptance check, and the risk that terminals are burnt due to heating caused by poor contact of the CT secondary circuit is reduced.
Owner:GUANGDONG POWER GRID CO LTD +1
Device for automatically collecting, releasing, storing and distributing fibers
ActiveCN105347119ASolve storage problemsGood for controlling curvatureFibre mechanical structuresFiberEngineering
The invention discloses a device for automatically collecting, releasing, storing and distributing fibers. The device comprises a shell. A pulley block A and a pulley block B are arranged in the shell in a spaced manner and used for collecting, releasing and storing the fibers. The pulley block B is installed in sliding grooves in the two sides of the shell and connected with a displacement control device. A jumper fiber or a tail fiber is wound on the pulley block A and the pulley block B, the jumper fiber or the tail fiber is led out of leading-out holes in the two ends of the shell respectively and embedded into cross fiber distributing grooves, and the fibers are distributed horizontally and vertically to be connected with an optical cable adapter or an optical fiber equipment interface. The jumper fiber or the tail fiber used for signal connection between optical cables, between the optical cables and optical fiber devices and between the optical fiber devices is arranged, the fibers can be automatically collected, released, stored and distributed, and the transverse and vertical fiber distribution environment in the connecting process of the cables, the connecting process of the cables and the optical fiber devices and the connecting process of the optical fiber devices is improved; and maintenance, fault searching and device replacement are convenient, so that time and labor are saved, cost is lowered, and the working efficiency is improved.
Owner:孙绍昕 +2
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