27results about How to "Timely protection" patented technology

The invention discloses an exoskeleton robot abnormal working condition automatic response and risk avoiding decision-making method, and relates to the technical field of exoskeleton, and the method comprises the steps: deploying a plurality of types of sensors to synchronously collect environment data, human physiological data and exoskeleton operation data, and carrying out the preprocessing to remove interference; through fusion of abnormal harmonic detection and a finite-state machine, dangerous working conditions such as wind speed abrupt change are identified, and grades are judged; monitoring eye movement and heart rate variability data in real time, quantifying cognitive load and grading; a decision rule base is constructed, and joint locking and other adaptive risk avoiding decisions are generated in combination with working condition types, grades and cognitive loads; the controller drives the execution mechanism to execute a decision, continuously monitors data at a frequency, dynamically adjusts the decision or recovers a normal mode. According to the method, dangerous working conditions are accurately identified through multi-source data fusion, adaptive risk avoiding measures are automatically triggered, a power assisting strategy is dynamically adjusted in combination with cognitive loads, and operation flexibility and physical output are balanced.

The utility model discloses a redundancy protection device of a gas-liquid control valve, which relates to the technical field of protection devices and comprises a valve pipe, flange rings are fixedly connected to the front end and the rear end of the valve pipe, a ball valve core is arranged in the valve pipe, a driving component is arranged on a mounting table above the valve pipe, a reset shell is vertically and fixedly connected to the lower part of the valve pipe, and a reset component is arranged in the reset shell. The upper and lower ends of the ball valve core are respectively connected with a driving component and a resetting component; according to the utility model, through the cooperation of the reset assembly and the ball valve core, the ball valve core can be automatically driven in time to rotate to close a flow channel and protect downstream equipment in case of sudden power failure, so that the practicability is improved, and the redundancy protection capability is realized; through a quick dismounting structure of the reset assembly, a reset structure can be conveniently and quickly replaced at regular intervals, so that stable operation of the reset structure is ensured, the practicability is improved, and the capability of stably triggering redundancy protection by the device is realized; finally, the problem of protection capability failure caused by difficult disassembly and assembly of an internal reset structure of existing equipment due to aging is solved.

The application belongs to the technical field of marine chemical analysis, and relates to an underwater in-situ mass spectrometer acquisition control system and method. The method comprises the following steps: a vacuum extraction step: the coarse extraction mode and the fine extraction mode are adaptively switched, the ion detection device is vacuum-extracted until the pressure is reduced to a preset threshold, and a required vacuum degree is maintained; a preheating preparation step: the membrane sampling device is initially sampled, and heating is performed at the same time until a preset working temperature is reached and the temperature is maintained constant; a dissolved gas formal detection step: the membrane sampling device is continuously supplied with water samples to be detected, and in-situ mass spectrum detection of dissolved gas in the water samples is completed; an instrument cabin gas discharge step: when it is detected that the underwater in-situ mass spectrometer floats to the water surface and the air pressure in the instrument cabin exceeds an upper limit threshold of gas discharge, the instrument cabin is discharged; a liquid leakage protection step: when liquid leakage occurs in the sampling cabin and the two core contacts are short-circuited, the high-pressure electromagnetic valve in the normally open state is closed to quickly block the liquid from entering the ion detection device.

This utility model relates to the field of steering gear lubrication technology, specifically a high-efficiency and energy-saving steering gear transmission device for ships. It includes a steering gear body, a transmission gear set inside the steering gear body, multiple temperature detection units for detecting the internal temperature of the steering gear body, a liquid cooling unit body installed on the outside of the steering gear body, and heat dissipation pipes arranged inside the steering gear body. Coolant absorbs heat from the internal side of the steering gear body through these pipes. This utility model uses liquid cooling, preventing moisture and dust from entering the steering gear body, thus avoiding the shortened service life of the transmission gear set due to moisture and dust. The lubricating oil is heated and stirred before addition to ensure optimal lubrication. A lubrication pump delivers the lubricating oil between the gears, reducing the friction coefficient and heat generation, thus solving the high-temperature problem at its source and protecting the gears, extending their service life.

This invention relates to a frequency identification circuit for motor driver control, belonging to the field of motor drive control technology. The frequency identification circuit compares frequency signals with corresponding duty cycles of 1% and 99% using two comparators. The first comparator circuit amplifies the output signal of the frequency identification module and inputs it to the non-inverting terminal of the comparator. The second comparator circuit directly inputs the output signal of the frequency identification module to the inverting terminal of the comparator. When the duty cycle is less than 1% or greater than 99%, the corresponding comparator outputs a low level. The signal processing circuit uses the unidirectional conductivity of a diode to perform an OR operation on the two comparison signals. If either signal goes low, the driver enable terminal is pulled low, triggering a protection mode. This invention enables rapid identification and protection against PWM signal anomalies, effectively improving the reliability of protection for motor drivers and electric servos.

This invention discloses a transformer partial discharge separation algorithm based on a self-supervised network, comprising the following steps: acquiring and storing partial discharge signals of the transformer; extracting discharge waveforms using an outlier detection method; constructing a self-contrast dataset and a negative example dataset for pulse data; extracting signal spectral features using a supervised contrastive network and training the network's spectral feature extraction capability; finally, classifying the features using an iterative self-organizing clustering algorithm; setting initialization information in the iterative self-organizing clustering algorithm, clustering the feature data obtained in step five, and after classification, determining the discharge type of data in each category using expert knowledge to obtain the discharge type result; this invention, by classifying and calculating discharge signals, can effectively calculate the discharge quantity and total discharge of different discharge faults, realizing the functions of transformer operating condition monitoring and fault early warning, and effectively protecting the safety of the transformer.

The invention discloses an ultrasonic power supply load disconnection detection method, which comprises the following steps: S1, data acquisition: synchronously acquiring the output voltage and current of an ultrasonic power supply in real time; s2, calculating a phase difference beta, and calculating the phase difference between the output voltage and current of the ultrasonic power supply; and S3, detecting and judging, namely judging the phase difference within the duration time t, if the absolute value of the phase difference beta within the time t is within a set threshold range, judging that the load is disconnected and giving an alarm, otherwise, judging that the load is not disconnected and continuing to work. According to the invention, the detection condition is set to quickly and accurately detect the disconnection state of the ultrasonic power supply load, so that reminding and protection measures can be taken in time, and serious consequences such as equipment damage or personnel injury can be avoided.

The utility model discloses a mining spraying fan which comprises a water tank, a spraying assembly is fixedly installed on the top of the water tank, a protection assembly is fixedly connected to the outer side wall of the spraying assembly, and stabilizing assemblies are fixedly installed on the two sides of the water tank respectively. The protection assembly comprises a first fixing plate and a first U-shaped frame, the first fixing plate is fixedly installed at the top of the spraying assembly, the first U-shaped frame is fixedly installed on one side of the first fixing plate, an electric push rod is hinged to the inner side wall of the first U-shaped frame, and a first connecting frame is fixedly connected to the outer side wall of the spraying assembly. According to the mining spraying fan, through the arranged protection assembly, a very good protection effect can be achieved, the spraying assembly can be protected in time when the spraying fan is not used so that the spraying assembly can be prevented from being blocked by dust, the situation that normal use is affected due to dust blocking is further reduced, the whole spraying fan can be better used, and the service life of the spraying fan is prolonged. And the use experience is effectively ensured.

The utility model provides a battery cell module and energy storage equipment. The battery cell module comprises a battery cell group, a supporting piece and an acquisition plate, the battery cell group comprises a plurality of battery cells; the supporting piece is arranged on one side of the battery cell group, the bottom end of the supporting piece is provided with an extension part, and the extension part extends to the lower part of the battery cell group. The collecting plate is arranged on the supporting piece and electrically connected with the battery cell, at least part of the collecting plate is arranged on the extending part, and a water inlet detection module is integrated on the part, located on the extending part, of the collecting plate and is configured to send an electric signal when making contact with water liquid. The water inlet detection module is integrated on the collection plate, the water inlet detection module can be installed while the collection plate is installed, the installation efficiency is improved, the water inlet detection module is arranged on the extension part and located below the battery cell group, the water inlet detection module is supported by the extension part, and the water inlet detection module can be conveniently installed. And the water inlet detection module is positioned below the battery cell group, so that the water inlet condition below the battery cell group can be detected in time, and the effects of prompt and protection in time are achieved.

The utility model discloses a new energy controller motor temperature sampling circuit, which is characterized by comprising a power supply filter circuit, a temperature signal sampling circuit, a drive control module and a signal conditioning and amplifying module, the power supply filter circuit is connected with the driving control module, the temperature sampling circuit is connected with the driving control module, and the driving control module is connected with the signal conditioning and amplifying module. The motor temperature sampling accuracy is improved, the motor temperature sampling is not easily influenced by the temperature, the motor temperature sampling reliability is effectively improved, and the motor is protected more timely.

The embodiment of the invention relates to the field of electric power systems, and discloses a protection method, system and equipment for an electric power conversion and interconnection system, and the protection method comprises the steps: dividing the electric power conversion and interconnection system into different protection types according to an area where a protection signal is located; different protection strategies are configured for the protection types respectively; the protection strategy is used for controlling a corresponding protection switch to trip; in response to a protection signal for the power conversion and interconnection system, determining a protection type corresponding to the protection signal; and according to the protection type corresponding to the protection signal, determining a protection strategy correspondingly executed by the protection type, and according to the protection strategy, controlling a corresponding protection switch to trip. According to the protection method disclosed by the invention, the problem of over-protection or untimely protection is solved, and at least the technical effects of graded protection, adoption of corresponding protection strategies after faults in different areas inside, and immediate protection and accurate protection can be achieved.

This application relates to the field of device control, providing a control method for a mobile device, a mobile device, and a storage medium. The mobile device includes a body, a leg mechanism connected to the body, and a joint motor driving the leg mechanism. The method includes: detecting whether the mobile device is in a failed-to-stand state, wherein the failed-to-stand state is a state where the mobile device, after tipping over, fails to return to a standing position after performing a standing recovery action; if the mobile device is in the failed-to-stand state, controlling the mobile device to enter a safety protection mode, the safety protection mode ensuring that at least the leg mechanism is in a free state. This application aims to trigger a safety protection mode when the mobile device fails to stand, thereby improving the movement stability and mechanical reliability of the mobile device.

The invention relates to the technical field of generator excitation simulation, and discloses an RT-LAB-based generator excitation small signal semi-physical simulation method and detection system, and the simulation method comprises the following steps: building a single machine infinite bus simulation system and a generator excitation system model in RT-LAB software; a semi-physical simulation platform loaded with RT-LAB software is electrically connected with the AVR excitation regulator through a conversion card; based on the generator excitation system model established in RT-LAB software, determining the optimal working parameters of the PSS of the AVR excitation regulator; and based on the optimal working parameters of the PSS of the AVR excitation regulator, adjusting the control parameters of the single-machine infinite-bus simulation system and the generator excitation system model so as to evaluate the response performance of the AVR to various generator faults. According to the method, a small signal model is built through RT-LAB, and the test accuracy is ensured by utilizing the real-time capability of the step length of 15 microseconds.

The treadmill comprises a base and a runway arranged on the base, the treadmill further comprises a stand column arranged on the base, the stand column is located in front of the runway, a containing bin is arranged on the side, away from the runway, of the stand column, a safety belt and a winding structure rotationally arranged on the stand column are arranged in the containing bin, and one end of the safety belt is connected with the winding structure; a safety belt outlet is formed in the side, facing the runway, of the stand column, the safety belt outlet is communicated with the containing bin, and at least part of the safety belt extends out of the safety belt outlet. The utility model provides a treadmill to solve the technical problems that a safety belt of an existing treadmill causes the movement range of a user to be too small, the user feels uncomfortable easily, and the user is prevented from using a whole treadmill runway.

The invention discloses a driving circuit with silicon carbide modules connected in parallel. The driving circuit comprises a microcontroller MCU used for outputting a PWM control signal; the first driving chip and the second driving chip are respectively used for receiving the same path of PWM signals output by the MCU; the first isolation driving power supply and the second isolation driving power supply respectively supply power to the first driving chip and the second driving chip; the first silicon carbide module and the second silicon carbide module are respectively connected with the first driving chip and the second driving chip; a first driving resistor is arranged between the first driving chip and the first silicon carbide module, and a second driving resistor is arranged between the second driving chip and the second silicon carbide module. The first driving resistor and the second driving resistor are used for adjusting the switching speed so as to achieve synchronous switching-on and switching-off. According to the invention, dynamic current sharing of the two silicon carbide modules is ensured.

This application relates to a motor controller protection method and system, belonging to the technical field of circuit protection. It includes a high-voltage sampling step: sampling the high-voltage side bus current and converting it into a voltage signal, amplifying the voltage signal into an output signal, and then judging whether the current exceeds a reference value of 1. If so, a low-level signal is output, and the signal output from the high-voltage side comparator is isolated to output a signal. A phase current sampling step: sampling the phase current and converting it into a voltage signal, converting the voltage signal into an output signal, and outputting a low-level signal when the current exceeds a reference value of 2. A judgment step: judging whether the current and phase current are equal; if they are equal to 1 and equal to 0, then it is a leakage fault, and the output is latched to 0. This application has the advantage of being able to continuously latch until the fault is cleared.

The application discloses a battery fault detection method and system based on multi-modal fusion and semi-supervised learning. The method comprises the following steps: obtaining battery original operation data, preprocessing the battery original operation data to obtain time series signal sample data; extracting the time domain dynamic characteristics of the time series signal sample data based on a one-dimensional convolutional neural network, and obtaining the time domain characteristic vector through global average pooling and flattening; calculating the statistical characteristics of the time series signal sample and converting them into structured text, extracting semantic features based on a pre-trained LLM to obtain a semantic feature vector; performing feature fusion based on a cross-attention mechanism to obtain a fusion feature vector, and inputting the fusion feature vector into a double-output branch to output a classification probability and a prediction confidence; and comparing the prediction confidence with a preset threshold to obtain a battery fault detection result. The application only needs normal battery management data for model training, the detection time is short, multi-modal data can be fused, and the accuracy of battery fault detection is effectively improved.

The utility model discloses an agricultural organic waste biogas residue treatment device which comprises an installation frame, a filtering mechanism is arranged on the installation frame and comprises a filtering cylinder, a center rod, a spiral plate, filtering holes, a motor, a feeding hopper, a liquid discharging pipe and a discharging pipe, and a protection mechanism is arranged between the motor and the center rod. The protection mechanism comprises a connecting sleeve, a connecting rod, a clamping groove, a sliding hole, a clamping block, a pressure applying block, a pressure spring, a push block and an adjusting mechanism, the connecting sleeve is installed at the output end of the motor, the connecting rod is installed at the bottom end of the center rod, and when the spiral plate is blocked by a hard object, the connecting rod can overcome the preset force of the pressure spring on the push block due to resistance increase, the clamping block is pushed to slide out of the clamping groove, and the adjusting mechanism is adjusted. Idle rotation is formed between the connecting rod and the connecting sleeve, so that the motor is prevented from being damaged due to overload, mechanical faults of equipment under unexpected conditions can be effectively prevented, and safe operation of the motor can be guaranteed.

The application discloses a marine modular multi-stage protection device based on a composite air bag, and relates to the technical field of ships.The device comprises a gas supply assembly, a composite air bag assembly and an intelligent control assembly.The intelligent control assembly is used for monitoring potential collision objects in a ship navigation area, predicting the impact area and impact time of the collision objects, and sending an inflation instruction to the gas supply assembly.The gas supply assembly supplies gas to the composite air bag assembly.The composite air bag assembly is used for resisting external collisions of the ship body.The device can provide timely protection and has multi-stage continuous protection capability, can be arranged in each key structure area, and can independently work or be combined in groups to jointly provide protection and buffering functions.

The application relates to the technical field of hydrological survey, in particular to a floating type hydrological water resource survey device. The device comprises a box, a controller is arranged on one side of the box, a placing box is arranged in the box, a floating plate is arranged on one side of the box, a sleeve pipe is arranged at the bottom of the floating plate, a buoyancy air bag is arranged on the outer surface of the sleeve pipe, the top of the buoyancy air bag is fixedly connected with the bottom of the floating plate, a plurality of through grooves penetrating through the sleeve pipe are formed in the outer circle of the sleeve pipe, and a plurality of filter plates which are matched with the through grooves and are detachably connected with the inner walls of the through grooves are arranged on the outer circle of the sleeve pipe. The device has the advantages of reasonable structure, simple structure, convenient operation, convenient carrying, improved sampling convenience, convenient sampling at different positions of a water area through the floating structure, improved sampling survey accuracy, two-stage adjustment of the survey sampling depth, adjustable sampling depth, high sampling accuracy, and superior shock absorption and buffering performance of the device.

The application provides a portable epilepsy seizure protection device, which comprises a mounting frame, a mounting slot is formed in the mounting frame, a bite stick is slidably arranged in the mounting slot, a fixed handle and a hinged operating handle are further arranged on the mounting frame, two groups of supporting frames are oppositely arranged, the two groups of supporting frames are respectively slidably arranged at the two sides of the mounting slot at the end of the mounting frame, a driving mechanism for driving the two groups of supporting frames to open is arranged on the operating handle, and a propelling mechanism for driving the bite stick to slide out of the mounting slot is further arranged on the operating handle. The device can quickly separate the teeth of the patient and place the bite stick into the oral cavity of the patient, so that the teeth of the patient cannot bite the tongue or the oral cavity when the patient has a seizure, the whole operation process can be completed by only one person, the oral cavity of the patient is more conveniently and timely separated, and the protection of the patient cannot be implemented due to insufficient personnel.

The utility model discloses a kind of coke oven fire hole pressure automatic detection devices, including coke oven, detection head being set on coke oven and mounting seat being installed on wall body, the mounting seat is rotatably connected with support rod, the lower portion of the mounting seat is provided with support bar, one end of the support bar is installed on wall body, the other end of the support bar extends to the lower portion of support rod, driving motor is installed on the support rod, the driving end of the driving motor is connected with driving shaft downwards through support rod. The utility model is adjusted structure and the cooperation of fastening structure, greatly to the protection of detection head, and the whole protective shell uses the mode of adjusting structure and fastening structure, guarantee the opening and closing of protective shell, so that protective shell can be more quickly and effectively when using, reduce the accumulation of detection head dust and the quick dismounting installation mode of protective shell, also guarantee the safe and stable use of user, bring convenience to user.

The utility model relates to the technical field of belt conveyors, and discloses a novel belt conveyor conveying system belt breakage protection device which comprises a belt machine frame, a conveying belt is arranged in the belt machine frame, a protection mechanism is arranged above the belt machine frame, a supporting mechanism is arranged on the outer side of the belt machine frame, and the supporting mechanism is arranged on the belt machine frame. And a monitoring mechanism is arranged above the conveying belt, the protection mechanism comprises a stand column, the stand column is located on one side of the belt rack, and a protection motor is fixedly installed at the bottom end in the stand column. According to the novel belt conveyor conveying system belt breakage protection device, through the arrangement of the protection mechanism, when the device is used, when the belt conveyor has the belt breakage phenomenon, a protection motor works to drive a protection frame to stretch out, a conveying belt is fully surrounded, and the situation that materials above the belt conveyor are scattered can be avoided; the loss caused by belt breakage of the belt conveyor is reduced, the maintenance difficulty of workers is reduced, and the use protection performance of the device is improved.

The invention discloses a methanol internal combustion engine self-adaptive protection system and method, and relates to the technical field of internal combustion engine corrosion protection and control. The system comprises a multi-mode corrosion state sensing module used for collecting corrosion related data of an engine in real time, and a protection execution terminal with a self-adaptive response characteristic and used for executing corrosion protection actions; the cooperative control module processes the corrosion related data based on the corrosion risk digital twinborn model, outputs a dynamic corrosion risk index, generates a hierarchical cooperative control instruction according to the corrosion risk index, and sends the hierarchical cooperative control instruction to the server; and the self-adaptive response of the intelligent coating, the instruction type release of the functional lubricating oil and the optimal adjustment of the working condition of the engine are cooperatively scheduled. Corrosion of the methanol internal combustion engine is accurately monitored, predicted and actively inhibited, the service life of the engine is prolonged, and reliability and economical efficiency are improved.

The application belongs to the technical field of inkjet printing, and provides a printhead power line reverse connection protection method, device, equipment and storage medium, which solves the technical problem that the printhead cannot be protected within an effective time when the polarity of the printhead power line is reversed in the prior art. The method comprises the following steps: acquiring an actual voltage of a voltage output end point on a printhead control board; comparing the actual voltage with a preset working voltage range, a preset unconnected voltage and a preset reverse connection voltage to obtain a comparison result; writing a state flag of the comparison result; and judging whether to supply power to the printhead according to the state flag. The application can protect the printhead in time when the polarity of the printhead power line is reversed, avoid damage to the printhead, and prolong the service life of the printhead.

The application discloses a kind of based on the switching control method of multiple state machines of hot gas bypass and heat pump mode, the switching control method includes the following steps: starting air conditioning system, based on the switching condition of hot gas bypass state machine and heat pump state machine, air conditioning system is switched to corresponding state machine and is operated;The state machine of operation first enters initialization state, and whether to meet waiting state jump condition is judged, if meeting, state machine jumps into waiting state, otherwise, whether to meet pre-starting condition is further judged, if meeting, state machine enters pre-starting state, otherwise, keep initialization state and run;The application is designed in hot gas bypass mode state machine and heat pump mode state machine by waiting state, make hot gas bypass state machine and heat pump state machine link when running, avoid unnecessary compressor shutdown in air conditioning system, can make two state machines switch naturally, improve passenger comfort, and avoid a part of loss on energy consumption.

The utility model provides an electric shock prevention structure of a power supply module, relates to the power supply module protection equipment field, and comprises a protection shell, the protection shell comprises a top cover, a bottom plate and a flip cover, one end of the top cover is provided with a groove, the bottom plate is arranged at the bottom of the top cover, the top of the bottom plate is fixedly connected with a power supply module body and a wiring terminal, and the flip cover is fixedly connected with the power supply module body. The wiring terminal is located at one end of the top of the bottom plate, and the input end of the wiring terminal is connected with the output end of the power supply module body; according to the utility model, the top cover, the bottom plate and the flip cover form the protective shell, the flip cover and the groove can provide protection for the wiring terminal, and the top cover and the bottom plate can provide protection for the power supply module body, so that people can be prevented from directly contacting the electrified wiring terminal and the power supply module body, the electric shock risk is effectively reduced, and the safety of a user is guaranteed; and the flip cover is movably connected with the inner wall of the groove through the damping rotating shaft and can be flexibly opened and closed during use, so that wiring operation is facilitated, and timely protection can be realized when the device is not used.