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Display device and voltage regulation circuit
PendingCN121838679ASolving the problem of higher than gate drive voltageavoid exceptionStatic indicating devicesDisplay deviceHemt circuits
The invention provides a display device and a voltage regulation circuit, the display device comprises a display panel, a power management chip, a source driver and the voltage regulation circuit, the source driver is used for receiving a voltage signal output by the power management chip and driving liquid crystal molecules of pixel units in the display panel to deflect; the voltage regulation circuit comprises a generation module which is used for generating a target reference voltage according to the on-off state of a direct current voltage signal when a power-on or power-off signal of the display device is detected; the comparator module is used for comparing the target reference voltage with the measured common electrode voltage and outputting a target voltage signal; and the control module is used for responding to the target voltage signal and pulling down the common electrode voltage to be lower than the gate driving voltage. By dynamically controlling the common electrode voltage, it is ensured that the common electrode voltage is always lower than the gate driving voltage, the problem that the common electrode voltage is higher than the gate driving voltage in the startup and shutdown process of the display device is solved, and the display reliability and the user experience are improved.
Owner:SUZHOU CHINA STAR OPTOELECTRONICS TECH CO LTD
Data processing method and related device
PendingCN121996365Aavoid exceptionAccurate dynamic adjustmentProgram initiation/switchingResource allocationMessage queueDistributed computing
The invention discloses a data processing method and a related device, and the method comprises the steps: obtaining a first backlog data volume of a message queue at a first time, and obtaining a second backlog data volume of the message queue in a first time period, the first time period being a time period before the first time; determining whether the message queue satisfies a thread pool adjustment condition based on the first backlog data volume and the second backlog data volume; under the condition that the message queue meets the thread pool adjustment condition, adjusting the thread number of a current thread pool of the message queue to obtain a first thread pool of the message queue; and processing the data in the message queue based on the first thread pool. According to the method, the running state of the message queue can be tracked in real time, so that the adjustment opportunity is accurately determined, the thread pool of the message queue is accurately and dynamically adjusted, and abnormity of the message queue is avoided.
Owner:MASHANG CONSUMER FINANCE CO LTD
Multidirectional modularized electrical component hardware combination device
ActiveCN224190575UReduce procurement costsReduce the cost of updatesCircuit arrangements on support structuresEducational modelsMechanical engineeringPhysics
Owner:BAOYI GROUP
Gas supply system for the feed heater and thermal oil heater of naphtha hydrotreating unit
ActiveCN224284689Uavoid exceptionReduce environmental risksFuel supply regulationFuel feedersThermodynamicsNaphtha
A gas supply device for the feed heater and thermal oil furnace of a naphtha hydrogenation unit is characterized by: a valve assembly installed on the inlet pipeline of the fuel gas separator; the inlet pipeline of the valve assembly is divided into two lines, one for natural gas and the other for the main fuel gas pipeline; the outlet pipeline of the fuel gas separator is also divided into two lines, one connected to the feed heater and the other connected to the thermal oil furnace. This invention, by adding a natural gas pipeline, switches the gas supply to the feed heater and thermal oil furnace to natural gas when flue gas indicators are abnormal, avoiding abnormal flue gas from the heater due to changes in fuel gas composition. This ensures stable operation of the unit and compliant flue gas emissions, meeting environmental protection requirements and reducing environmental risks for enterprises. It largely maintains the original structure of existing equipment, requiring no major modifications, and features low modification costs and high economic benefits.
Owner:SHENMUFUYOU ENERGY TECH
Miscontrol and anti-misoperation comprehensive protection method for valve cooling control system of high-voltage converter station
PendingCN121934466ARealize the whole process monitoringAchieve precise managementProgramme controlComputer controlVoltage converterPower-system automation
The invention relates to an error control and error prevention comprehensive protection method for a valve cooling control system of a high-voltage converter station, and belongs to the technical field of power system automation. According to the method, safe execution of a key control instruction is realized through dynamic authority management and identity authentication of an operator in combination with multi-mode intelligent analysis of interlocking control and working condition driving. And a multi-source redundant signal fusion algorithm is adopted to carry out consistency judgment and abnormal isolation on parameters such as temperature, pressure and flow, so that the error control risk is greatly reduced. An expert knowledge base is embedded in the system, risk assessment and real-time early warning are carried out on the operation process, major misoperation is automatically recorded and traced, and whole-process hierarchical log and automatic event processing is supported. The method significantly improves the operation safety and operation and maintenance efficiency of the valve cooling control system, and is suitable for a high-safety requirement scene of an electric power system.
Owner:DALI BUREAU OF ULTRA HIGH VOLTAGE TRANSMISSION CO CHINA SOUTHERN POWER GRID CO LTD
An adaptive robotic hand
This invention relates to the field of robotics and provides an adaptive robotic hand, comprising: a connecting arm connected to a predetermined position on a machine, wherein at least three gripping claws are rotatably connected to the front end of the connecting arm; a control component disposed inside the connecting arm to control the state of the gripping claws; a drive component for controlling the state of the control component is fixed on the connecting arm; and the gripping claws abut against the control component under the action of a torsion spring. By providing an automatic gripping pressure detection device, this invention ensures that whether to grip a workpiece can be determined by detecting the gripping pressure, thus adapting to the gripping requirements of different parts.
Owner:WEIFANG INST OF TECH
Nitrogen humidifier
This application relates to a nitrogen humidifier, comprising a first housing, a connecting member, an air inlet pipe, a liquid inlet pipe, a second housing, a flow restrictor, and a connector. The connecting member is disposed at a first opening of the first housing and has a first air passage, an air inlet passage, and a liquid inlet passage, which are respectively connected to an external controlled air source and a liquid source. The air inlet pipe and the liquid inlet pipe respectively introduce gas and liquid into a first accommodating space for premixing. The first air passage connects to a second accommodating space of the second housing, where the flow restrictor is disposed. The flow restrictor agitates the ejected mixed airflow to achieve secondary mixing. The connector is disposed at a third opening of the second housing to exhaust the mixed gas. This nitrogen humidifier, through independent gas and liquid supply and a two-stage mixing design, effectively improves humidification efficiency and humidity stability, solving the problems of low mixing efficiency and poor humidity control in existing technologies, and is suitable for high-precision process requirements.
Owner:SUZHOU WINMAX TECH CORP
Rail section state detection system, method, storage medium and electronic device
ActiveCN118270066Bavoid exceptionImprove reliabilityRoute devices for controlling vehiclesTrackwayRanging
The present disclosure relates to a track section state detection system, method, storage medium and electronic device, comprising: a processor, a beacon device arranged on a train, and a plurality of queryer groups arranged on a target track, the processor being in communication connection with the beacon device through the queryer; the queryer is configured to broadcast a ranging signal, and send the detected beacon signal to the processor in the case of detecting a beacon signal returned by the beacon device based on the ranging signal; the processor is configured to determine first distance information between the train and the first queryer according to the first beacon signal in the case of receiving a first beacon signal sent by a first queryer in a target queryer group corresponding to a target track section, and determine a track section state of the target track section according to the first distance information, the track section state comprising an occupied state or a non-occupied state, and the target track section being any one of a plurality of preset track sections.
Owner:BYD CO LTD
Valve structure, chip, processing method and system
The present application belongs to the field of chip processing, and particularly relates to a valve structure, a chip, a processing method and a system. The valve structure comprises: a liquid outlet layer located between a liquid storage cavity and a micro-pipe, and provided with a liquid outlet; a waterproof film for preventing liquid in the liquid storage cavity from penetrating out of the liquid outlet; and a water-soluble film provided between the waterproof film and the micro-pipe, and used for supporting the waterproof film. The liquid outlet layer provided with the liquid outlet and located between the liquid storage cavity and the micro-pipe can control the liquid flowing from the liquid storage cavity to the micro-pipe. The waterproof film is used for preventing the liquid in the liquid storage cavity from penetrating out of the liquid outlet, so as to prevent uncontrolled penetration. The water-soluble film provided between the waterproof film and the micro-pipe can support the waterproof film, so as to prevent the waterproof film from being abnormal.
Owner:孙翠敏
Triggering structure and pneumatic intensifier
The application discloses a trigger structure and a pneumatic supercharger. The trigger structure comprises a first striker, a second striker, a trigger spool, a first pilot control end corresponding to the first striker and a second pilot control end corresponding to the second striker. The first striker corresponds to a first piston in the pneumatic supercharger, and the second striker corresponds to a second piston in the pneumatic supercharger. The first striker is impacted by the first piston, the second striker is impacted by the second piston, and the impacts occur alternately. The first pilot control end and the second pilot control end are respectively connected with gas paths of two switching positions of a switching valve, and are used for driving the trigger spool in cooperation with the first striker and the second striker, so that the switching valve of the pneumatic supercharger is switched. Therefore, the pneumatic supercharger can avoid the problem that the switching valve cannot be switched to a position by using the trigger structure applied to the pneumatic supercharger.
Owner:FESTO (CHINA) PRODUCTION LTD +2
Insulator discharge defect detection device
PendingCN121784482AEnsure detection integrityAvoid interfering with discharge detectionTesting dielectric strengthMeasurement instrument housingInsulator ElementMechanical engineering
The invention discloses an insulator discharge defect detection device, and relates to the technical field of insulator discharge defect detection devices, the insulator discharge defect detection device comprises an operation table, and also comprises a rotating disc which is rotatably arranged on the operation table, a plurality of groups of mounting assemblies are arranged on the circumference of the rotating disc, each mounting assembly is provided with a clamping assembly, and the clamping assemblies are arranged on the rotating disc; the clamping device is used for clamping an insulator on the turntable; the device comprises a rotating disc, a feeding station and a testing station, insulators are clamped on the rotating disc one by one on the feeding station, then the rotating disc rotates at intervals, and the insulators are rotated to the testing station one by one for discharging detection; three functions of surface bulge defect detection, internal defect discharge detection and umbrella skirt cleaning are integrated, the rubber plate and the position sensor are matched to realize surface bulge accurate judgment and test station discharge detection to troubleshoot internal bubbles / cracks, and meanwhile, the rubber plate rotates to clean umbrella skirt foreign matters, so that the foreign matters are prevented from interfering with discharge detection, and the detection efficiency is improved. And the detection integrity of the insulator is comprehensively ensured.
Owner:SHANDONG RUITAI GLASS INSULATOR
Elevator light curtain with door opening warning function
PendingCN122079002AEnsure thoroughnessWith door opening and closing warning functionCleaning using toolsCleaning using gasesStructural engineeringElectric devices
This invention belongs to the field of elevator light curtain technology and discloses an elevator light curtain with door opening and closing warning function. It includes a light curtain housing and positioning frames fixed at both ends. A groove is formed on the left side of the light curtain housing, and the light curtain body is connected inside the groove. Warning LEDs are installed on both sides of the light curtain body. A movable frame is fitted around the outside of the light curtain body. Limiting grooves are formed on the front and rear sides of the light curtain housing, and the movable frame slides in cooperation with the limiting grooves. This elevator light curtain with door opening and closing warning function completely changes the traditional "passive response" safety protection mode of light curtains through the design of multiple arrays of dual-color warning LEDs, constructing an active and efficient warning system. During the elevator door closing process, the high brightness and wide warning range of the dual-color flashing lights can clearly remind the elderly and children who move slowly, and can also effectively attract the attention of passengers focused on electronic devices, avoiding collisions or pinching accidents caused by delayed reaction.
Owner:FLELER SENSOR (DONGTAI) CO LTD
A memory allocation speed control method, device, equipment and medium
ActiveCN121116652BImprove real-time performanceImprove stabilityResource allocationMemory adressing/allocation/relocationComputer hardwareEngineering
Embodiments of the present application provide a memory allocation speed control method, device, equipment and medium, the method comprises: determining the memory allocation speed limit of a container according to priority; performing memory allocation for the container according to the memory allocation speed limit; detecting the current memory allocation speed and the current free memory amount; determining a first amount threshold; in the case that the current memory allocation speed is greater than the memory allocation speed limit and the current free memory amount is lower than the first amount threshold, determining a target memory allocation speed; performing memory allocation for the container according to the target memory allocation speed. Embodiments of the present application determine the corresponding memory allocation speed limit for containers of different priorities, so that the monitoring is more targeted, so as to adjust the memory allocation speed of the speed overrun container when the memory allocation speed is overrun and the free memory is lower than the amount threshold, avoiding system lag or abnormality caused by response lag, and improving the real-time performance and stability of memory resource management.
Owner:CHINA TELECOM CLOUD TECH CO LTD
False touch prevention knob cover for angle valve of heating radiator
ActiveCN224261038Ueffectively coveravoid accidental contactSustainable buildingsPreventing unauthorised/accidental actuationPublic placeCompanion animal
The utility model relates to the technical field of knob covers, in particular to a heating radiator angle valve mistaken touch prevention knob cover. The utility model provides a heating radiator angle valve mistaken touch prevention knob cover which comprises a fixing ring, a screw and a protective cover, an opening in the front side of the fixing ring is fixed through the screw, and the protective cover is clamped in the fixing ring. The protective cover is stably installed through the fixing rings and the screws, the angle valve rotary knob of the heating radiator can be effectively covered, accidental touch is prevented, the situation that a heating system is abnormal due to touch of children or pets in a family can be avoided, heating is guaranteed, and property loss is reduced; in public places, management inconvenience caused by misoperation of the angle valve can be reduced, and use safety and convenience are improved.
Owner:TIANJIN WEITE HEATING & VENTILATION EQUIPMENT CO LTD
Reinforced safety type intelligent control ammeter system
PendingCN121856605AReduce the risk of security incidentsSolve the problem of high false positivesSpecial tariff metersEmergency protection detectionCommunication unitSafety control
The invention relates to the technical field of electric meter systems, in particular to a reinforced safety type intelligent control electric meter system, which comprises a data processing unit, and a residual current monitoring circuit, an output control unit, a communication unit, a power supply circuit, a direct current component calculation module and a resistive leakage component calculation module which are respectively connected with the data processing unit, the method solves the problem of leakage detection of direct current leakage of the charging pile, greatly reduces the false alarm rate of leakage, adapts to the wide voltage working condition of the charging pile, achieves the intelligent safety control of a charging scene, improves the utilization rate and charging efficiency of the charging pile, achieves the quick response and handling of a fire, and guarantees the dual safety and convenience of station operation and vehicle use of a vehicle owner.
Owner:CHINA TOWER CO LTD
Carrier information modulation and demodulation method of controllable resonant magnetic pulse through-the-earth communication transmitter
ActiveCN120415990BSimple structureImprove anti-interference abilityMulti-frequency code systemsCapacitanceCarrier signal
The application relates to a carrier information modulation and demodulation method of a controllable resonant magnetic pulse through-the-earth communication transmitter, and the method comprises the following steps: generating a magnetic pulse signal through a hardware topology of a magnetic pulse signal transmitter, wherein the hardware topology comprises a switch, a unidirectional conducting switch, a resonant capacitor and a solenoid; dividing the working period of an LC resonant system into four stages by controlling the conduction and shutdown of the switch and the unidirectional conducting switch; generating a non-continuous magnetic resonant signal pulse by dynamically adjusting the duration of each stage; designing an information modulation mechanism based on orthogonal code elements, generating the waveforms of code element 0 and code element 1, and ensuring the orthogonality by verifying the autocorrelation and cross-correlation; and realizing information demodulation at a receiving end by calculating the cross-correlation between the input non-continuous magnetic resonant signal and code element 0 and code element 1. The application solves the contradiction between radiation efficiency and signal bandwidth which cannot be considered in the existing through-the-earth system and modulation and demodulation method.
Owner:XIDIAN UNIV
Method executed by user equipment and user equipment
PendingCN122002400Aavoid exceptionImprove business experienceWireless communicationCell selectionEngineering
The invention provides a method executed by user equipment and the user equipment. The method comprises the following steps: receiving an MIB message sent by a network, wherein the MIB message comprises first information used for indicating whether a cell is prohibited and second information used for indicating whether the cell is an OD-SIB1 cell; determining whether the cell is prohibited or not according to the first information contained in the received MIB message, and determining whether the cell is an OD-SIB1 cell or not according to the second information contained in the received MIB message; and determining whether the cell can be used as a candidate in a cell selection and / or cell reselection process.
Owner:SHARP KK
Switching wave control method, system and equipment of bidirectional buck-boost circuit and medium
PendingCN121966332AStable and efficient controlavoid disorderBatteries circuit arrangementsAc-dc conversionElectrical batteryLow voltage
The invention relates to the technical field of inverters, in particular to a switching wave control method, system and device of a bidirectional buck-boost circuit and a medium. The method comprises the steps that battery information of a low-voltage battery is obtained, the battery information comprises at least one of battery state information, voltage information and current information, and state combination information of a booster tube and a step-down tube is obtained according to the battery information; acquiring a high-voltage side voltage and a low-voltage side voltage of the bidirectional buck-boost circuit, and acquiring a current feed-forward value according to the high-voltage side voltage and the low-voltage side voltage; operating a voltage loop operation and a current loop operation based on the high-voltage side voltage and / or the low-voltage side voltage; reading set mode parameters of the bidirectional buck-boost circuit, and judging whether the set mode parameters are matched with the state combination information or not; if not, the set mode parameters are modified according to the state combination information, and the voltage loop operation and the current loop operation are carried out again based on the modified set mode parameters. According to the invention, stable and efficient control of the bidirectional buck-boost circuit can be realized.
Owner:SRNE SOLAR CO LTD
Modular probe card
The utility model discloses a modularization probe card, including substrate and adapter plate, substrate one end is provided with test machine lead line row and inserts one end, and the other end is provided with detection window, and is equipped with the pad area around detection window for welding blade probe and probe lead-out wire, the adapter plate detachably installed between test machine lead line row and inserts one end and pad area, be equipped with wiring network on the substrate, and the input of wiring network is electrically connected with test machine lead line row and inserts one end, and the output is connected to pad area through adapter plate. The substrate is designed as general bottom plate, and is equipped with detachable adapter plate and is adapted to different sample test, and high-precision probe card need not to be customized, meanwhile, the adapter plate adopts foolproof interface design, prevents the circuit abnormality caused by mistake.
Owner:SHANGHAI IND U TECH RES INST
Compartment interior environment control device
PendingCN121947094Aavoid getting in the wayavoid exceptionAir-treating devicesVehicle heating/cooling devicesDriver/operatorAir volume
The present invention provides a vehicle interior environment control device which can obtain a sense of freshness brought by driving without being limited by a driving environment. A vehicle interior environment control device is provided with a vehicle window that separates a vehicle interior from the outside and can be opened and closed, and a blower that blows air toward a driver in the vehicle interior, and a controller that controls the air volume of the blower is provided with: a travel determination unit (step S1) that determines whether or not the vehicle speed is equal to or greater than a predetermined prescribed vehicle speed; an opening degree determination unit (step S4) that determines whether or not the opening degree of the window is equal to or less than a predetermined prescribed opening degree; and an air supply control unit (steps S5, S6) that controls air supply to the driver on the basis of satisfaction of a predetermined condition including the travel determination unit determining that the vehicle speed is equal to or greater than a predetermined predetermined vehicle speed and the opening degree determination unit determining that the opening degree of the window is equal to or less than a predetermined predetermined opening degree.
Owner:TOYOTA JIDOSHA KK
Case file auditing method and device, computer device, storage medium and program product
This application relates to a case file review method, apparatus, computer equipment, computer-readable storage medium, and computer program product. The method is executed by a review model and includes: acquiring a case file to be reviewed; extracting case file keywords from the case file; determining the review type of the case file based on the case file keywords; searching for review prompt words corresponding to the case file in a prompt word rule base according to the review type and case file keywords, and combining the review prompt words corresponding to the case file to be reviewed to obtain a review prompt word chain; and reviewing the content in the case file to be reviewed sequentially according to the review prompt word chain to obtain a review result. This method enables efficient and accurate case file review.
Owner:SHENZHEN XIAOBAN ARTIFICIAL INTELLIGENCE TECHNOLOGY CO LTD +1
Starting system and battery car
ActiveCN114103643BQuick activationIncreased shutdown speedElectric devicesCurrent/voltage measurementElectric signalEmbedded system
The application provides a starting system applied to a to-be-started device. The starting system comprises a processor and a positive connection detection module. The to-be-started device comprises a positive electrode and a negative electrode. The processor is electrically connected to the positive connection detection module. The positive connection detection module comprises a first detection submodule and a first transistor. The first detection submodule is used for detecting whether the positive electrode and the negative electrode receive an electric signal. When the first detection submodule detects that the positive electrode is connected to a positive electric signal and the negative electrode is connected to a negative electric signal, a positive connection electric signal is generated. The first detection submodule transmits the positive connection electric signal to the processor through the first transistor, so that the processor enters a normal working state. The first transistor has the characteristics of fast opening and fast closing. The positive connection electric signal is transmitted to the processor, the interrupt control can be quickly responded, and the abnormality of the starting system caused by the incorrect connection of the power supply is prevented, so that the safety and reliability of the starting process are greatly improved. The application further provides a battery car.
Owner:SHENZHEN CARKU TECH CO LTD
Encrypted channel data leakage prevention blocking method and system based on deep residual network and protocol reverse analysis
The application relates to the technical field of encrypted communication security and data leakage prevention, and discloses an encrypted channel data leakage prevention blocking method and system based on a deep residual network and protocol reverse analysis, which comprises the following steps: under the premise of maintaining end-to-end encryption, collecting the transmission direction, ciphertext load length and arrival time interval of an encrypted session, constructing a structured observation sequence by demarcating the interactive round-trip boundary and analyzing the idle time length fluctuation to carry the protocol interaction rhythm; analyzing the hidden state output state probability sequence by a Gumbel-Softmax relaxed hidden semi-Markov model, inputting the state probability sequence into a deep residual network after aligning with a Gram angle field texture image, generating a gating coefficient to modulate the texture feature to output a leakage probability; combining the state transition probability to predict the risk and make a decision on blocking, and predicting the injection blocking message based on the TCP sequence number at the hidden state boundary. The application does not destroy the security of the encrypted channel, and uses the protocol logic structure to improve the detection accuracy and blocking timeliness.
Owner:SHANDONG MUQING INFORMATION TECHNOLOGY CO LTD
Audio processing method and device and electronic equipment
PendingCN121967589Aavoid exceptionSpeech analysisAutomatic call-answering/message-recording/conversation-recordingComputer hardwareEngineering
The invention discloses an audio processing method and device and electronic equipment, and relates to the technical field of mobile terminals, and the method comprises the steps: in an audio collection process, obtaining a first audio signal collected by a first audio collection assembly and a second audio signal collected by a second audio collection assembly; obtaining a common base signal based on the first audio signal and the second audio signal; and if it is determined that the first audio acquisition component is abnormal based on the first audio signal and the second audio signal, taking the public basic signal as a target audio signal corresponding to the first audio acquisition component. Therefore, when it is determined that the first audio acquisition component is abnormal, the common basic signal obtained based on the first audio signal of the first audio acquisition component and the second audio signal acquired by the second audio acquisition component is used as the target audio signal corresponding to the first audio acquisition component, so that the first audio acquisition component is prevented from being abnormal; therefore, the first audio acquisition assembly cannot obtain the audio or the obtained audio quality is too poor.
Owner:GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD
Bootloader and APP upgrading method based on flash memory partition
PendingCN122018947Areduce dependenceSimplify upgrade operationsSoftware engineeringDigital data protectionContinuous useData integrity
The invention discloses a Bootloader and an APP (Application) upgrading method based on a flash memory partition. According to the method, a flash memory in an MCU is logically partitioned into a Bootloader region, an APP A region, an APP B region and a corresponding flag bit A region / B, and an A / B redundant backup mechanism is constructed. When the system is initialized, the Bootloader judges the activation and validity states of the A / B area of the APP through the zone bit area and determines a starting path. In the upgrading process, upgrading data are received by means of communication modes such as CAN, a new program is temporarily stored in an inactive area, and data integrity and legality are ensured through multiple layers of verification such as Hash verification, CRC verification and digital signature verification; and switching the active area after the verification is passed, and automatically rolling back to the original active area when the upgrading fails, thereby ensuring that the system is continuously available. The method is suitable for upgrading various automobile electronic control units.
Owner:浙江奥思伟尔电动科技有限公司
Data cross-network secure transmission device
This invention relates to a secure cross-network data transmission device, belonging to the field of data transmission technology, and solves the technical problems of high cost, low efficiency, and insufficient transmission stability and security in existing cross-network data transmission. The solution is: a secure cross-network data transmission device for unidirectional data transmission from an intranet to an extranet, comprising: a rectangular shell; a high-definition display module located on the front inner wall of the shell, used to display generated QR code images in high definition; a data receiving module located inside the shell, used for unidirectional data reception; and an audio module located on one side wall and bottom inside the shell, used to provide sound output. Compared with existing technologies, this invention has advantages such as unidirectional transmission, high security, simple deployment and operation, low cost, high transmission efficiency, strong stability, and high accuracy.
Owner:SHANXI JUNHE XINTONG INFORMATION TECHNOLOGY CO LTD
Method and device for lithium battery anomaly prediction, electronic equipment and readable storage medium
The application relates to a lithium battery anomaly prediction method and device, electronic equipment and readable storage medium, and relates to the technical field of lithium battery detection. The method comprises the following steps: acquiring current charging current data and current charging time data corresponding to each lithium battery respectively, establishing a first corresponding relationship of the current charging current data and the current charging time data, then inputting the first corresponding relationship, the current charging time data and the current charging current data into a prediction model, determining an anomaly prediction battery and anomaly prediction charging data, acquiring position information of the anomaly prediction battery, and controlling the display of the position information and the anomaly prediction charging data. The lithium battery anomaly prediction method, device, electronic equipment and readable storage medium provided by the application can discover the anomaly of the lithium battery in advance, so that the lithium battery anomaly can be avoided.
Owner:HUNAN HUAMEI XINGTAI TECH CO LTD
A low-cost high-reliability anti-single-particle locking protection method and circuit
This application relates to a low-cost, high-reliability single-event lock-up protection method and circuit. When a device encounters a single-event lock-up, the method automatically cuts off power supply via hardware and delays restarting, while the FPGA records the event. If the single-event lock-up persists after several consecutive restarts, the FPGA outputs a signal to forcibly cut off power supply, thereby protecting downstream circuitry from single-event effects and preventing system malfunctions. This method utilizes hardware and software collaboration to avoid repeated system restarts that fail to remove the locked device from the lock-up state. It rationally optimizes single-event lock-up protection measures, achieving single-event lock-up protection for devices without single-event data or those sensitive to single-event lock-up. This saves testing time and enables highly reliable on-orbit applications of lock-up-sensitive devices.
Owner:HUNAN SIBEITU TECH CO LTD
Acoustic emission condition monitoring system and method for a main bearing of a wind turbine
The application discloses a kind of acoustic emission state monitoring system and method of wind power generator main bearing, comprising: establishing calibration parameter library including amplitude threshold, count abnormal threshold, coupling state threshold and time coincidence degree threshold under healthy state;Periodically send standard diagnostic pulse to acoustic emission sensor, calculate current coupling state coefficient and determine whether sensor is in effective coupling state;When effective coupling, acoustic emission and ground brush current waveform sequence are synchronously collected and total number of events is extracted;The time coincidence degree of two types of events is calculated;According to the comparison result of coupling state, time coincidence degree and total number of events and corresponding count abnormal threshold, it is classified and determined as sensor maintenance alarm, shaft current electrocorrosion alarm, mechanical spalling alarm, ground brush loop abnormal alarm, composite abnormal alarm or normal according to priority;Output differentiated maintenance instruction.The application effectively distinguishes multiple faults through sensor self-diagnosis and acoustic-electric synchronous identification, and reduces false alarm rate.
Owner:CHINA RESOURCES NEW ENERGY (JIANHE) WIND ENERGY CO LTD
Self-locking power supply control circuit based on self-resetting switch
ActiveCN224191822Uavoid power failureavoid exceptionTransistorElectronic switchingControl circuitSwitching power
The utility model relates to the technical field of power supplies, and discloses a self-locking power supply control circuit based on a self-resetting switch, which is connected with an equipment master controller and is used for controlling the on-off between a power supply input end and a power supply output end, and the equipment master controller is connected with the power supply output end and is used for accessing an input signal and generating an output signal. The self-locking power supply control circuit comprises a first MOS switch which is connected between a power supply input end and a power supply output end and is used for outputting an input signal, an NPN switch which is connected with the first MOS switch, the power supply input end, the power supply output end and an equipment master controller so as to access an output signal, and a self-resetting switch which is connected with the power supply output end, the equipment master controller and the first MOS switch. The second MOS switch and the first MOS switch are connected in parallel between the power supply input end and the power supply output end and are connected with the NPN switch; and the third MOS switch is connected with the power supply input end and the NPN switch.
Owner:SHENZHEN GIEC DIGITAL CO LTD