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52results about How to "Optimize working mode" patented technology

Device for remote wireless monitoring for industrial on-site parameters

InactiveCN101539764AGuaranteed real-time and reliabilityOptimize working modeComputer controlSimulator controlData pointNetwork deployment
The invention relates to a device used for remote wireless monitoring for industrial on-site parameters, belonging to the technical field of remote wireless monitoring. The device comprises an on-site monitoring terminal and a remote monitoring centre, wherein, the on-site monitoring terminal comprises a principal controller, a first remote wireless transmitting device, a timing device, a memory device, a data collecting interface unit, an on-site debugging interface unit and an power supply unit; the remote controlling centre comprises a second remote wireless transmitting device and a remote computer. The remote computer is directly connected to the Internet and is connected with GPRS network by the Internet, thereby acquiring on-site parameters transmitted by the on-site monitoring terminal by GPRS wirelessly. The device of the invention realizes mixed communication of GPRS and GSM short message and optimizes switching between GPRS and the GSM short message as well as a transport protocol transmitted by heartbeat packet, thereby ensuring real-time data transmission, improving the reliability of data transmission and facilitating distributed network deployment monitoring for industrial on-site multiple data points.
Owner:TSINGHUA UNIV

Portable medical monitoring system for new arrival suffering from major disease

The invention discloses a portable medical monitoring system for a new arrival suffering from a major disease. The monitoring system comprises an embedded central processing module, a physiological and biochemical parameter acquiring and processing module, a human-computer interaction module, a data storing and transmitting module, a power supply management module, a battery and an alternating-current power supply adapter, wherein the functional modules are used for acquiring, processing, analyzing and displaying the physiological and biochemical parameters including body temperature, degree of blood oxygen saturation, electrocardio, heart rate, breath, blood pressure, bilirubin and acceleration of a new arrival patient concertedly and orderly in real time under the unified control of the embedded central processing module, storing and transmitting the physiological and biochemical parameters and diagnosis and treatment information of the new arrival patient, receiving and executing diagnosis and treatment commands and information of a monitoring host and the human-computer interaction module, and performing early-stage preliminary diagnosis on the major disease causing brain paralysis of the new arrival.
Owner:SUZHOU INST OF BIOMEDICAL ENG & TECH

Industrial robot automatic processing method and device for logistics system

The invention relates to an industrial robot automatic processing method and device for a logistics system. Including a conveyor belt, the conveyor belt is a segmented structure, the front section is a waiting area conveyor belt, and the rear section is a conveyor belt, and the waiting area conveyor belt is controlled by a transmission motor; Connected distance control device, alignment device, code scanning device, steering device, code scanning centering device, box adjustment device, weighing device, rejecting device, and coding device. The invention has reasonable structure and convenient use, can change the original working mode of workers, reduces the occupation of the production site, and saves the production space. 4. Mechanical operation and precise process control ensure product quality.
Owner:李宪刚

Simulation method and apparatus of space-ground integrated management system

The present invention is applicable to the technical field of simulation, and provides a simulation method and apparatus of a space-ground integrated management system. The method comprises the steps of receiving simulation configuration parameters, and selecting a corresponding simulation sub-system according to the simulation configuration parameters, wherein the simulation sub-system comprises at least one of a constellation simulation system, a physical link layer simulation system, a star-earth inter-star channel simulation system, and a communication protocol simulation system, and the constellation simulation system, the physical link layer simulation system, the star-earth inter-star channel simulation system, and the communication protocol simulation system are connected with each other by using RTI interfaces and perform data transmission; and building a corresponding simulation model for the selected simulation sub-system, and performing simulation by using the simulation model. Through adoption of the method, integrated management and simulation can be performed on the physical layer link, the communication protocol and the constellation, simulation verification can be performed on the satellite communication system and the data acquisition system, and the method supports research and development of multiple satellite communication systems and data acquisition systems.
Owner:SPACE STAR TECH CO LTD

Mobile operation system and method for water and electricity production management

The invention provides a mobile operation system and method for water and electricity production management for solving the problems existing in an existing water and electricity production management information system.The system comprises a mobile application server and a mobile application client side.The mobile application server achieves the functions of service data exchange, auditing supervision and control and operation instruction sending; the mobile application client side achieves the functions of two mobile tickets, mobile defects, mobile polling, technical supervision, mobile KPI, basic data and the like.According to the method, the mobile operation system is adopted, front-line staff achieves on-site execution of two tickets, defect compilation, checking and elimination, polling information receiving, recording and reporting, technological supervision test data on-line collection and other work contents, management staff obtains service data information conditions of the two tickets, the defects, polling, technical supervision and the like, and on-line analysis of capital equipment overhaul conditions is carried out through KPI.By means of the mobile operation system and method, smoothness of on-site operation procedures and data accuracy can be effectively ensured.
Owner:STATE GRID CORP OF CHINA +3

Handheld multifunctional intelligent operation device

InactiveCN106744095AEasy to superviseImprove inspection accuracy and inspection methodsElevatorsMultiple functionControl system
The invention discloses a handheld multifunctional intelligent operation device. The handheld multifunctional intelligent operation device comprises a shell. A microprocessor operation module, a wireless transmission module and an identity authentication module are arranged in the shell, wherein the wireless transmission module and the identity authentication module are connected with the microprocessor operation module. An emergency stop switch, an uplink button, a downlink button, a running button, an alarm button, a display screen and operation keys all of which are connected with the microprocessor operation module are arranged on the front face of the shell. A communication interface and a normal / overhaul conversion button both of which are connected with the microprocessor operation module are arranged at the top end of the shell. The handheld multifunctional intelligent operation device is connected to an elevator control system through all kinds of terminal interfaces connected to various overhaul boxes (a lift car operation box, an elevator car top overhaul box, a call-out calling box, a bottom pit overhaul box, an automatic escalator and various overhaul boxes in a moving sidewalk), remote multiple function operation is carried out, and operation can also be achieved through wireless network transmission.
Owner:GUANGDONG WINONE ELEVATOR

Intelligent module and intelligent household electrical appliance control system and method

The invention discloses an intelligent module, a system and a method used for controlling intelligent household electrical appliances. The household electrical appliances can be controlled through communication between a mobile terminal with a Bluetooth module and an intelligent module which is provided with the Bluetooth module and can convert a Bluetooth signal into an infrared signal to send, and the power consumption of the intelligent module is lowered through optimally configuring the Bluetooth transmission power, the Bluetooth communication rate and the Bluetooth broadcasting mode of the intelligent model.
Owner:DEQING DUSUN ELECTRON

Injection management system with multi-parameter configuration

The invention relates to an injection management system with multi-parameter configuration, and the system at least comprises a monitoring module which is used for monitoring the dropping state of liquid medicine, a processing module which can be used for calculating infusion related parameters, a display module which is used for outputting basic information and / or related parameters, and an operation module which is used for controlling the system to start and stop and inputting information. The monitoring module and / or the processing module can at least acquire standardized liquid drop dropping images according to the dropping state of the liquid drops, and the processing module can at least calculate recommended values about the infusion state parameter and / or based on the infusion state parameters based on the liquid drop dropping images and at least according to the physicochemical property of the liquid medicine and / or the specification of the infusion apparatus. An intelligent mode is adopted, the working mode of medical staff is improved, the accuracy or precision of dropping speed measurement is improved, the utilization efficiency of the medical staff is improved, the universality is high, multi-party management can be achieved, and the management efficiency and quality are improved.
Owner:PEKING UNIV THIRD HOSPITAL

Hazardous chemical major hazard source basic information database application system

The invention discloses a hazardous chemical major hazard source basic information database application system. The system is composed of a hazardous chemical safety technique specification query module, a hazardous chemical major hazard source identifier, a classification calculation module, a hazardous chemical major hazard source archival information adding and inputting module, a hazardous chemical major hazard source archival information query and judgment module and a system different-identity user login module. The system has the advantages that a hazardous chemical major hazard source basic information database is established. The functions of automatically judging and classifying hazardous chemical major hazard sources, querying hazardous chemical MSDSs, inputting and examining basic information archives and the like are included, and a rapid and convenient working mode is provided for hazardous chemical major hazard source basic information management.
Owner:GUANGXI UNIV

Post-posed splitting pupil laser differential confocal microscopic detection method and device

PendingCN109520973AGood effectFacilitates focus tracking measurementsAnalysis by material excitationFine structurePupil
The invention relates to a post-posed splitting pupil laser differential confocal microscopic detection method and device and belongs to the technical field of surface fine structure measurement. Themethod comprises the following steps: a tested sample is scanned and measured by adopting light path arrangement of post-posed splitting pupil laser differential confocal microscopy; an incident beampenetrating a measuring objective lens to be focused to the surface of the tested sample; reflective light loaded with geometrical morphology information of the tested sample is collected through themeasuring objective lens to enter a post-posed splitting pupil laser differential confocal defecting system; the reflective light is focused to a detecting surface through a first focusing lens and acollecting light pupil; two areas are arranged on the detecting focal face off-axis; response of the two areas is measured and a response characteristic equation of the detector is obtained; and surface shape of the tested sample is re-constructed according to the intensity size of the curve in a linear region or the position of the curve, the intensity of which is zero. The method is simple in structure, can consider the spatial resolving power and the range ability of the system effectively, and achieves optical high resolution absolute measurement of surface topography of an object, a three-dimensional fine structure and the like.
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Micro-current induction power supply type temperature measuring and alarming device and temperature measuring and alarming method

ActiveCN103812233AConvenient for long-distance observationReduce volumeElectromagnetic wave systemCircuit arrangementsElectricityLow voltage
The invention discloses a micro-current induction power supply temperature measuring and alarming device and a temperature measuring and alarming method. The micro-current induction power supply temperature measuring and alarming device comprises an inductive electricity taking circuit and a temperature measuring and alarming circuit, wherein the inductive electricity taking circuit provides a power supply for the temperature measuring and alarming circuit; the inductive electricity taking circuit comprises a current inductor, a rectification filter circuit, a voltage stabilizing circuit, a voltage monitoring chip and a three-terminal switch, the current inductor is composed of an unclosed magnetic core and a coil which winds the unclosed magnetic core, the power supply output from the coil is controlled to output through the three-terminal switch after being rectified, filtered and stabilized, and the on / off of the three-terminal switch is controlled through the voltage monitoring chip. The micro-current induction power supply temperature measuring and alarming device automatically goes to sleep at definite time or under low voltage, so that the electric energy consumption is lowered, and the effective micro-power consumption work is realized. The temperature measuring and alarming device has advantages of convenience in mounting, small volume, low cost and high reliability, is applicable to various small spaces on site, and prompts the user to pay attention to the temperature abnormity of the equipment through different colors of light so that the user is convenient to observe in long distance.
Owner:四川瑞霆智汇科技有限公司 +1

Working mode selection and control method and system for media center device

This invention relates to media center device work mode control method and system fixed on the media center device, which provides one human operation work mode to media center device, wherein, the media center device switch module method comprises steps of one user control connection module, one work mode set module and one work mode switch module. This invention establishes the media source device and media display device relationship and provide one trigger pressure keys on the user operation interface.
Owner:INVENTEC CORP

Low-voltage power distribution network tail end low-voltage treatment parallel compensation device

The invention discloses a low-voltage power distribution network tail end low-voltage treatment parallel compensation device. The device comprises a rectifying device and an inversion device, the input side of the rectifying device is connected with the output side of a power distribution network transformer, three-phase alternating current is rectified into direct current, and the output side of the rectifying device is connected with the input side of the inversion device through an independent direct current transmission cable; and the input side of the inversion device is connected with the output side of the rectifying device through an independent direct current transmission cable to invert direct current into alternating current, and the output side of the inversion device is connected with an original alternating current transmission cable in parallel. According to the invention, through the AC-DC-AC conversion technology, a parallel connection mode is adopted to compensate the user power demand before and after the original AC power transmission parallel connection point, the problem of low end voltage caused by line voltage drop in high-power long-distance AC power transmission is solved, and the end user voltage quality is improved.
Owner:QINGDAO TOPSCOMM COMM +1

Noodle maker, control device of noodle maker, and control method of noodle maker

The invention discloses a noodle maker, a control device of the noodle maker, and a control method of the noodle maker. The control device comprises a receiving component for receiving a mode selection instruction input by a user, a stirring component, a noodle production component, a driving component, a state detection unit, and a control unit. The driving component is provided with a first working state and a second working state; and the driving component drives the stirring component to stir under the first working state and drives the noodle production component to produce noodles underthe second working state. The state detection unit is used for detecting the running state of the noodle maker to generate a detection signal. The control unit is respectively connected to the receiving component, the driving component and the state detection unit, controls the driving component according to the mode selection instruction and the detection signal, and controls the stirring component to stir or the noodle production component to produce the noodles so as to realize automatic stirring and / or noodle production. Working modes of the noodle maker are optimized; and the noodle makercan be effectively protected; damages to die heads of the noodle maker are avoided; and user experiences are improved.
Owner:GUANGDONG MIDEA CONSUMER ELECTRICS MFG CO LTD +1

Shopping list automatic maintenance method and device based on computer vision, storage medium and terminal

The invention discloses a shopping list automatic maintenance method and device based on computer vision, a storage medium and a terminal. The method comprises the steps of tracking a moving track anda body language of a user in a shopping area; when the moving track falls into a preset position in the shopping area, analyzing the body language of the user based on computer vision; and changing the state information of the commodity in a shopping list according to an analysis result, the shopping list being associated with the identity information of the user. According to the scheme, the working mode of the retail industry in the small industry state can be greatly optimized, the shopping list is intelligently and automatically maintained based on computer vision, the labor cost is saved, the checkout efficiency is improved, and unmanned operation of small retail stores is achieved.
Owner:SHANGHAI LINHAN INFORMATION TECH LTD

Signal equipment fault diagnosis method and diagnosis system

The embodiment of the invention provides a signal equipment fault diagnosis method and fault diagnosis system, and belongs to the technical field of rail traffic. The diagnosis method comprises the steps that railway operation data is acquired in real time; simulation calculation is conducted according to the railway operation data and an interlocking table; and the signal equipment fault reason is determined according to a result of simulation calculation and the acquired railway operation data. According to the technical scheme, the signal equipment fault reason can be quickly and accuratelydetermined, the working efficiency is improved, and the interference to railway transportation by faulty signal equipment is reduced.
Owner:CHINA SHENHUA ENERGY CO LTD +1

Total-heat fresh air ventilator with double-layer air duct

The invention relates to the technical field of total-heat fresh air ventilators, aims to solve the problem that the performance of an existing fresh air ventilator is poor due to the fact that an air duct structure of the existing fresh air ventilator is complex, and provides a total-heat fresh air ventilator with a double-layer air duct. The total-heat fresh air ventilator with the double-layer air duct comprises a fresh air duct, a return air duct and a total-heat heat exchange element; the fresh air duct communicates with an outdoor air inlet and an indoor air outlet and comprises a first downstream section; the return air duct communicates with an indoor air inlet and an outdoor air outlet and comprises a first upstream section; the total-heat heat exchange element comprises a fresh air channel and a return air channel which can exchange heat, the fresh air channel is arranged in the fresh air duct or forms a part of the fresh air duct, and the return air channel is arranged in the return air duct or forms a part of the return air duct; and part of the first downstream section and part of the first upstream section are arranged in an upper-lower layer mode in the vertical plane so as to form the double-layer air duct. According to the total-heat fresh air ventilator with the double-layer air duct, the air resistance can be reduced, the efficiency of the fresh air ventilator is improved, and low-noise operation can be achieved.
Owner:QINGDAO HAIER AIR CONDITIONING ELECTRONICS CO LTD +1

Instantaneous power failure preventing delayer

InactiveCN103887115AReduce power consumptionOvercome the problem of not being able to start the whole seriesRelaysElectricityModel selection
The invention provides an instantaneous power failure preventing delayer which comprises a filter unit, a rectification energy storage unit, a DC / DC conversion unit, a sampling unit, a single chip microcomputer control unit, a display setting unit and a switching unit. By means of the instantaneous power failure preventing delayer, a instantaneous power failure preventing delayer circuit is started to be adaptive to working voltage of an alternating-current contactor, reliability of full-range start is guaranteed, work of the instantaneous power failure preventing delayer circuit is maintained in the mode that the working voltage is converted to direct-current low voltage, the working mode substantially lowers power consumption of the alternating-current contactor, and energy is saved by more than 80%. When voltage fluctuation or an instantaneous power failure happens, work of the alternating-current contactor is directly maintained in a delayed mode, sectional model selection is not needed, universality is high, the size is small, and cost is low.
Owner:SHAANXI AN DE SEN ELECTRICAL SCI

Automatic tail drill equipment for horizontal lathe and horizontal lathe

The invention discloses automatic tail drill equipment for a horizontal lathe. The automatic tail drill equipment comprises a tail drill device capable of moving on a rack, a power assembly, a clutch and a chain wheel assembly; the tail drill device comprises a movable base and a lead screw assembly arranged on the movable base, a tool is arranged at the front end of the lead screw assembly and driven by the lead screw assembly to stretch out and draw back front and back, and a manual crank is arranged at the rear end of the lead screw assembly; and the power assembly is connected with the lead screw assembly through the chain wheel assembly, the clutch is arranged between the power assembly and the chain wheel assembly, the clutch is used for connecting or disconnecting the transmission effect between the power assembly and the lead screw assembly, and the power assembly can drive the lead screw assembly to operate through the chain wheel assembly. Compared with a traditional manual swing tail drill device, the labor intensity of an operator is greatly relieved, so that the production efficiency is improved; and in addition, the clutch can connect or disconnect the transmission effect between the power assembly and the lead screw assembly so that a producer can switch between manual operation and electric operation, and therefore, the working mode of the tail drill equipment is optimized.
Owner:宁波市鄞州塘溪银宏机械厂

Grounding knife switch operating mechanism

The invention discloses a grounding knife switch operating mechanism. The grounding knife switch operating mechanism comprises a lifting assembly and an operation assembly, the operation assembly comprises a ground knife pressing plate and a floating operation head. The ground knife pressing plate is fixed on the lifting assembly; the floating operation head is arranged on the lifting assembly inthe mode that the floating operation head can stretch out and draw back in the direction of the operation disconnecting link relative to the lifting assembly and can rotate the disconnecting link. Thegrounding knife switch operating mechanism has the beneficial effects that the mechanism is carried on a robot integrating operation and inspection functions through linkage of the multi-degree-of-freedom assembly mechanism, the scheme that manual operation is not needed and the whole process can be completed by the machine is achieved, a traditional multi-point deployment operation and maintenance work mode of one set of operation tasks of a transformer substation is optimized, remote deployment control can be achieved, the efficiency is high, and high-risk hot-line work can be completed accurately.
Owner:YIJIAHE TECH CO LTD

Electronic all-wheel-drive system for motor vehicle and control method therefor

The invention relates to an electronic all-wheel-drive system for a motor vehicle and a control method therefor. The electronic all-wheel-drive system comprises a whole vehicle system, a power control system and an ESP (Electronic Stability Program) module, wherein, the ESP module is connected with the whole vehicle system and the power control system through a whole vehicle CAN (Controller Area Network) bus in a controlling manner; the power control system comprises an engine management system (EMS), a battery management system (BMS), a rear-guard motor controller (TM), A motor control unit (MCU) and a transmission case control unit (TCU); the power control system is used for interacting with the whole vehicle system, acquiring the state information of the whole vehicle system, outputting control commands after judging and processing, and controlling the whole vehicle system to operate; the whole vehicle system comprises a rear-guard motor, a high-tension battery, an ISG (Integrated Starter Generator), an engine and a transmission case.
Owner:奇瑞新能源汽车股份有限公司

Dimension inspection method for automatically matching target value

PendingCN113094774ASave the step of manually recording the measured valueImprove work efficiencyGeometric CADSpecial data processing applicationsWireless transmissionAlgorithm
The invention discloses a size inspection method for automatically matching a target value. The size inspection method comprises the following steps: step 1, making an inspection plan; step 2, the data analysis system automatically loading a corresponding inspection plan list according to the part graph number and the version; step 3, measuring the size by using a measuring device with a wireless data transmission function; step 4, the data analysis system receiving an actual value transmitted by the measurement equipment with the wireless data transmission function, and comparing the actual value with each theoretical dimensional tolerance interval in the inspection plan list; and step 5, the data analysis system matching the measured value into a measured value column of a specified inspection item in the inspection plan list according to the measured value, and broadcasting whether the measurement result is qualified or not in real time by voice. The measurement value can be automatically recorded and whether the dimension is within the allowable tolerance range can be fed back in the part dimension inspection process, and the manual input and confirmation steps are canceled.
Owner:SHENYANG FORTUNE PRECISION EQUIP CO LTD

Power adapter, control method, control device and mobile terminal

The invention relates to a power adapter, a control method, a control device and a mobile terminal, and the power adapter comprises an image lamp, a controller and an external change-over switch, Thecontroller is connected with the external change-over switch and used for determining the working mode of the power adapter according to the switching operation of the external change-over switch, andthe working mode comprises an image lamp mode. The controller is connected with the image lamp and receives flash lamp parameter information from the mobile terminal, the flash lamp parameter information is determined by the mobile terminal according to the data information, the data information comprises photometry data and shooting mode information selected by a user, and the photometry data comprises ambient light data in a preset range of the target shooting object. And the controller controls the image lamp to provide flash brightness for the target shooting object according to the flashlamp parameters. The purpose that the image lamp can flexibly flash according to the light environment information around the target shooting object and the shooting mode selected by the user is achieved, and a personalized shooting mode is provided.
Owner:CHANGAN UNIV

Signal interaction detection method

ActiveCN106529798AOptimize working modeConvenient and efficient working modeResourcesDisplay deviceComputer science
The invention discloses a signal interaction detection method. The method comprises steps that an application program is installed in an operation computer and a control device respectively; signal connection is established between the operation computer and the control device; the control device obtains operation instructions of a keyboard and / or mouse, and sends control instructions corresponding to the operation instructions to the operation computer; the operation computer controls a detection device to execute an operation motion corresponding to a control instruction; the control device obtains and processes the operation motion executed by the detection device and the operation instructions of the keyboard and / or mouse displayed by a first display, so as to obtain a keyboard operation signal, a mouse operation signal and a detection step message; and the control device sends at least one of the keyboard operation signal, the mouse operation signal and the detection step message to a user terminal for confirmation. By the abovementioned mode, the user is enabled to achieve product performance detection without arriving at the site, so that the working efficiency is effectively improved.
Owner:GUANGZHOU SPECIAL PRESSURE EQUIP INSPECTION & RES INST

Airport landing aircraft interval management method and device and storage medium

The invention provides an airport landing aircraft interval management method. The airport landing aircraft interval management method comprises the steps of obtaining aircraft runway distribution, an approach sequence, an interval type, aircraft performance and weather information; generating an aircraft track sign; calculating and generating five-side position prompts of the aircraft according to the motion parameters of the five-side aircraft; according to the actual flight path position of the aircraft and the five-side position prompts, initial interval prompting is carried out; according to the actual flight path position of the aircraft and the five-side position prompts, grounding interval prompting is carried out; and continuously monitoring flight data of each aircraft in the pentagonal flight process, and carrying out pentagonal operation efficiency analysis and system optimization. The invention also provides an airport landing aircraft interval management method and a storage medium. According to the technical scheme provided by the invention, visual and digital five-side interval allocation suggestions are provided for controllers, fine management of five-side intervals is assisted, and the five-side operation efficiency is improved.
Owner:广州市中南民航空管通信网络科技有限公司 +1

Backup power automatic switching check all-in-one machine

The invention discloses a backup power automatic switching check all-in-one machine. The backup power automatic switching check all-in-one machine includes a I bus-bar voltage air switch, a II bur-bar voltage air switch and a direct-current overvoltage relay; a group of alternating-current voltage output terminals I is arranged between the I bus-bar voltage air switch and the II bur-bar voltage air switch; a group of alternating-current voltage output terminals II and a group of circuit breaker tripping position switching quantity input test terminals are arranged between the II bur-bar voltage air switch and the direct-current overvoltage relay; and one end of the direct-current overvoltage relay is provided with a group of alternating-current voltage input terminals. The backup power automatic switching check all-in-one machine of the invention is simple in structure, can be operated by a single person and is optimized in working mode. According to the backup power automatic switching check all-in-one machine, the switching quantity input of variables is completed by the relay, so that the risk of false touch-induced operation of equipment can be decreased. With the backup power automatic switching check all-in-one machine adopted, the success rate of a test can be greatly improved; the situations of the breakpoints of circuit breakers under the same protection logic can be observed simultaneously; the frequency of repeated tests can be decreased; and work efficiency can be improved.
Owner:ZHONGWEI POWER SUPPLY COMPANY OF STATE GRID NINGXIA ELECTRIC POWER

Locking method for preventing differential protection maloperation of transformer caused by sympathetic inrush current

The invention provides a locking method for preventing differential protection maloperation of a transformer caused by sympathetic inrush current, which belongs to the technical field of electric power automation. The method comprises steps of calculating a three-phase differential current value of a transformer, judging whether a phase difference exists between a second harmonic phase and a double fundamental current phase in the differential current when the transformer generates sympathetic inrush current or not, when it is judged that the phase difference exists between the second harmonic phase in the differential current and the doouble fundamental current phase when the sympathetic inrush current occurs in the transformer, calculating the second harmonic proportion value when the sympathetic inrush current and the fault occur in the transformer, judging whether the second harmonic proportion value is not lower than a proportion coefficient Kd or not, when it is judged that the second harmonic proportion values are all lower than the proportion coefficient Kd, judging whether the current value of the differential current is not lower than a setting value Iset or not, and when judging that the current value of the differential current is lower than the setting value Iset, locking differential protection.
Owner:ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID NINGXIA ELECTRIC POWER COMPANY

Ingot guiding method of continuous casting machine, chain type ingot guiding rod of continuous casting machine and continuous casting machine system

The invention discloses an ingot guiding method of a continuous casting machine. In the ingot guiding method of the continuous casting machine, the structure of an ingot guiding rod is optimized, andmeanwhile, the working mode of a withdrawal and straightening unit is improved, so that the walking stability of the ingot guiding rod in ingot guidance is improved, and the fluctuation of molten steel is reduced. The invention further provides a set of chain type ingot guiding rod of the continuous casting machine and a set of continuous casting machine system; in the chain type ingot guiding rodof the continuous casting machine, the ingot guiding rod is lengthened, and meanwhile, a spring plate is additionally provided, so that the walking stability in ingot guidance can be improved; the continuous casting machine system uses the chain type ingot guiding rod of the continuous casting machine; and the ingot production quality is improved. Through lengthening of the designed length of theingot guiding rod, each withdrawal and straightening unit synchronously applies pressure to the ingot guiding rod, so that the interference on walking of the ingot guiding rod during pressing of a pressing roller on the withdrawal and straightening unit in the ingot guiding process is reduced; and the process settings are changed, and the hot blank pressure is converted beforehand, so that the stress condition of the ingot guiding rod is improved, and the operation stability is improved.
Owner:DAYE SPECIAL STEEL CO LTD

Step weighted Tong detection method

The present invention discloses a step weighted Tong detection method. The method can perform dynamic weighted adjustment on a step value of the Tong detector according to signal quality (signal-to-noise ratio), can take into account both performance and efficiency of the algorithm, and can be applied to complex and variable scenarios. The Tong detector performs self-adaptive adjustment on counterstep value according to signal energy envelope size, performs real-time feedback on counter execution accumulation or rollback operation, can flexibly adjust according to scenarios or signal state without changing Tong detector parameters, does not increase calculation amount, and can optimize detector working mode; the method increases step weight in the case of a great disparity between the signal and the noise, effectively shortens detection dwell time and improves detection efficiency; the method aims at weak signals that are difficult to detect, through weak difference weighting, can reduce the detector step weight, increase detection confirmation times, improve weak signal detection performance, and improve signal detection accuracy and reliability.
Owner:ACAD OF OPTO ELECTRONICS CHINESE ACAD OF SCI +1

Shared bicycle and networked control method and apparatus thereof, and computer readable storage medium

The disclosure relates to the technical field of the mobile internets, particularly to a shared bicycle and a networked control method and apparatus thereof, and a computer readable storage medium. The shared bicycle includes a wake-up device and a networked control device. The wake-up device is used for sending out an activation signal after being activated by a user. The networked control deviceis used for responding to the activation signal, establishing connection between the shared bicycle and a network server side, responding to the operation of the user or disconnecting the shared bicycle with the network server side under the condition of having no operation by the user within preset time. Therefore, the service life of the battery of the network module is prolonged and the user experience is improved.
Owner:CHINA TELECOM CORP LTD
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