58 results about "Failure detector" patented technology

Methods and systems for detecting a torque transmission failure in an aircraft power plant are provided. The system comprises a hydrostatic transmission for transmitting torque between a first shaft and a second shaft using hydraulic fluid, an a failure detector including a sensor configured to detect a pressure change in the hydraulic fluid. The failure detector is configured to generate an output indicative of the torque transmission failure in response to the pressure change having crossed a threshold.

A circuit interrupter is structured to electrically connect between a power source and a load. The circuit interrupter includes: separable contacts; an actuator coupled to the separable contacts and structured to open or close the separable contacts; a current sensor structured to sense current flowing through the circuit interrupter to the load; a communication module communicatively coupled to at least one of a cloud server and a user device and structured to transmit and receive data; and a controller coupled to the sensor, the actuator, and the communication module, the controller comprising at least one of a fault detector and a look-up table, the fault detector structured to detect and classify a fault, the look-up table comprising at least reference data associated with previous normal cycles, the reference data including at least power factors, closing angle ranges and fault classification categories.

A vehicle drive assist apparatus includes a traveling environment information acquisition unit, a traveling state information acquisition unit, and a traveling control unit. The traveling environment information acquisition unit acquires traveling environment information. The traveling state information acquisition unit acquires traveling state information. The traveling control unit includes a malfunction detector and a takeover request processor. The malfunction detector detects a malfunction in the traveling environment information acquisition unit and the traveling state information acquisition unit. The takeover request processor executes a takeover request process for manual driving in a case where the malfunction is detected. The takeover request processor includes a waiting time measurement section and an output restricting section. The waiting time measurement section measures a waiting time from detection of the malfunction to transition to the manual driving. The output restricting section restricts an output of a drive source during the waiting time.

A fault detector has a processor configured to receive, during a register write event, first data that are to be stored on a first register; determine a first encoded value from the first data using an encoding operation; receive second data from the first register from one or more bit locations on which the first data were to be stored; determine a second encoded value from the second data using the encoding operation; and compare the first encoded value and the second encoded value. If the first encoded value is the same as the second encoded value, the fault detector operates according to a first operational mode; and if the first encoded value is different from the second encoded value, the fault detector operates according to a second operational mode.

According to the fault detector for the equipment AC power supply, an AC IN pin of a zero-crossing detector U1 is connected with a positive electrode of the equipment AC power supply through a resistor R3, and an AMP IN pin and a DC SUPPLY pin are connected with a negative electrode of the equipment AC power supply through an electrolytic capacitor C1. Two GND pins are connected with a pin 2 of the optical coupler U2 and also connected with the negative end of the electrolytic capacitor C1, and an OUT pin is connected with a pin 1 of the optical coupler U2 through a resistor R2; a pin 3 of the U2 is grounded, and a pin 4 of the U2 is connected with a pin A of the trigger U3 and is also connected with 5V through a resistor R1; a Y pin of the U3 is respectively connected with a B pin of a monostable multi-resonant oscillator U4, an ID of a trigger U5 and a # imgabs0 # pin; an electrolytic capacitor C2 is connected between two Cext pins of the U4, a Rint pin is connected to 5V, an A1 pin is grounded, a Qx pin is connected with a CLK pin of the U5, and a 1Q pin of the U5 is connected with an oscilloscope.

The invention discloses a mine fire intelligent monitoring and early warning auxiliary method and system, and the method comprises the following steps: S1, determining a monitoring point in a mine, arranging a sensor at a set position for detecting the condition of a mine region, and arranging a fault detector for carrying out the fault detection of the arranged sensor; according to the invention, a plurality of sensors are arranged to monitor the gas composition, concentration, hidden fire source, residual coal accumulation amount, wind speed and temperature change conditions in the oxidation zone, so that the factors of fire occurrence can be effectively and comprehensively analyzed in real time, the intelligent degree is improved, early warning and fire extinguishing treatment can be carried out in time when abnormity occurs, and the safety of the system is improved. The monitoring accuracy is improved, the potential safety hazard of a fire disaster is reduced, fault detection can be performed on the sensor in the monitoring process, and when a fault occurs, a person is reminded to handle the fault in time, so that the situation that the person having the fault of the sensor cannot know the influence on the monitoring accuracy in time can be effectively reduced.

The invention relates to an electronic circuit, an electronic system and a method. The electronic circuit includes a fault output node switchable between a fault state indicative of a fault operating state and a normal state indicative of a normal operating state, the electronic circuit further including a fault detector configured to place a number of fault event signals of a plurality of fault event signals in an active state, each of the plurality of fault event signals indicates a different fault event associated with the electronic circuit; a failure mode signal generator configured to generate a failure mode signal based on the plurality of failure event signals placed in the active state; and a fault output node control unit configured to receive the fault mode signal, and in response to receiving the fault mode signal: switch the fault output node to a fault state, and output the fault mode signal at the fault output node by switching the fault output node according to the fault mode signal.

An image forming apparatus includes a replacement containing a consumable. A storage stores the replacement and has an opening through which the replacement is inserted into and removed from the storage. An open-close member opens and closes the opening. A locking device locks the open-close member in a state in which the open-close member closes the opening. A cover closes to cover the open-close member and prohibit the open-close member from opening. A cover detector detects whether or not the cover closes. A failure detector detects a failure of the locking device to determine whether or not the locking device switches to an unlocking state in which the locking device unlocks the open-close member in a case that the cover detector detects that the cover closes and that the failure detector determines that an amount of the consumable contained in the replacement is not greater than a predetermined threshold.

The invention discloses a wind power detection device for new energy power generation and a use method thereof.The wind power detection device comprises a base, a rubber supporting column is fixedly connected to the center of the top of the base, a mounting box is fixedly connected to the top of the rubber supporting column, and an angle fine adjustment mechanism used for performing angle fine adjustment on a supporting seat is arranged at the position, located outside the rubber supporting column, of the top of the base; a mounting box is fixedly connected to the top of the supporting seat, a rotating mechanism is mounted at the top of the mounting box, a driving mechanism is arranged at the top of the rotating mechanism, lifting seats capable of being adjusted in a lifting mode are symmetrically arranged in the mounting box, and a fixing sleeve capable of being adjusted in a rotating mode is arranged between the two lifting seats. The wind power detection device has the beneficial effects that the angles of the supporting seat and the mounting box can be flexibly and finely adjusted, the detector is always in the optimal detection direction by adjusting the angle of the driving mechanism, the wind power detection accuracy is greatly improved, meanwhile, the fault detector is conveniently and quickly replaced, and detection interruption caused by the fault of a single detector is avoided.

The invention relates to an infrared defect image expansion method and device, computer equipment, a readable storage medium and a program product. The method comprises the following steps: carrying out dimension reduction processing on an infrared defect image sample by utilizing a preset compressed sensing network model to generate low-dimensional data; optimizing a preset generative adversarial network model according to the low-dimensional data, and obtaining an optimized generator; generating low-dimensional synthetic data according to the noise data by using the generator; and performing dimension raising processing on the low-dimensional synthetic data by using the compressed sensing network model to generate an infrared defect expansion image. The generative adversarial network model is a double adversarial mechanism, the generator and the discriminator confront each other, the generator and the fault detector confront each other, and the discriminator and the fault detector are respectively utilized to perform feedback adjustment on the generator, so that the quality of low-dimensional synthetic data generated by the generator can be improved, and the fault detection accuracy is improved. And sufficient training samples are provided for intelligent defect detection of power equipment.

The utility model discloses a fault detector for maintenance of an air conditioner, which belongs to the technical field of detection devices and comprises a main body, a display screen and keys are respectively mounted at the top of the main body, an outlet is formed in the outer wall of the main body, a selection mechanism is arranged in the main body, and the selection mechanism is connected with the display screen and the keys. A battery is installed in the main body, and a charging port corresponding to the battery is formed in the outer wall of the main body. According to the utility model, the selection mechanism is designed, the rotating block is manually rotated to select different placement bins, the small detectors and the winders are mounted in the placement bins, the winders can automatically recover wires after detection is completed, subsequent operation is facilitated, and the various small detectors can meet the requirements of different detection items, so that the detection is more comprehensive, and the detection efficiency is improved. The overall design effectively improves the working efficiency of maintenance personnel, reduces the operation difficulty, and provides great convenience for the maintenance and detection work of the air conditioner.

The invention discloses an industrial vehicle line fault detector and a detection method, and aims to solve the problem that the detection efficiency is low due to the fact that an existing fault error reporting device is lack of line fault recognition capability and depends on manual line detection. The system comprises an external interface and an internal circuit, a source interface supplies energy to connected modules, a control signal group comprises a plurality of control signal interfaces, the control signal interfaces obtain the connection states of the connected modules, a CAN communication interface group comprises a plurality of CAN communication interfaces, and each CAN communication interface communicates with each module. In response to signals fed back by the power supply interface group, the control signal group and the CAN communication interface group, the display screen and the LED array output fault information, the fault positioning capability and speed are improved, the maintenance time is shortened, and the production efficiency is improved through collaborative error code reporting and physical detection.

A failure detection device according to one embodiment of the present invention includes a first resistive voltage divider circuit, a second resistive voltage divider circuit, a comparator, and a determination unit. The first resistive voltage division circuit is configured to be capable of dividing a high voltage applied to a first pixel control line among the plurality of pixel control lines. The second resistive voltage division circuit is configured to be capable of dividing a low voltage applied to the first pixel control line. The comparator is capable of comparing a reference voltage with a first voltage generated by the first resistive voltage division circuit or a second voltage generated by the second resistive voltage division circuit. The determination section is capable of performing failure determination of the drive circuit and each of the pixel control lines based on a result of the comparator.

The application relates to the technical field of unmanned aerial vehicle fault detection, and discloses an unmanned aerial vehicle real-time fault detection method based on a deep domain adaptive BiLSTM, which comprises the following steps: a feature extractor and a fault detector are pre-trained in a source domain, then past and future features are extracted from the flight data of the unmanned aerial vehicle time sequence under one working condition by using the feature extractor, and a feature set of the source domain and the target domain is obtained; the feature set is sent to a domain adapter for processing, the source domain and the target domain are classified by using the domain adapter, and the maximum difference between the source domain and the target domain is measured; the fault detector is optimized and trained in a minimum health state classification error mode, then the flight data of the unmanned aerial vehicle under any working condition is acquired, the fault detector is used for real-time fault detection of the unmanned aerial vehicle, and a health state report of the unmanned aerial vehicle is obtained. The application has the beneficial effects of reducing the difference between different working condition data and improving the accuracy of the unmanned aerial vehicle fault detection result.

An electronic device (112) is presented. The electronic device (112) has a non-volatile memory (118) configured to store information independently of a power supply. The electronic device (112) further has a plurality of write-back registers (120) configured to store information in parallel with operation of the electronic device (112). The electronic device (112) further has a fault detector (122) configured to detect a fault of a primary power supply (114), activate a backup power supply path (124) to a backup power supply (116) in the event of a fault, and initiate an information transfer (126) from the write-back registers (120) to the non-volatile memory (118) in the event of a fault.Furthermore, a system (110) comprising the electronic device (112) and a method for operating the electronic device (112) are presented.

1. Name of the product in this design: Four-channel DC arc fault detector. 2. Purpose of this design: For arc fault detection at the high-voltage DC end of a photovoltaic inverter. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

A fault detection system and method for detecting a fault condition in a direct current (DC) system. A power transmitter energizes a cable with electrical power. A power receiver connected to the cable provides the electrical power to a load. At the power receiver, a signal generator coupled to the cable generates and propagates a deterministic signal on the cable. At the power transmitter, a fault detector is coupled to the cable to receive the deterministic signal and noise after propagation through the cable. The fault detector has a plurality of filter branches with each of the filter branches having an associated bandwidth. Adjusting a gain of one or more of the filter branches in response to a signal-to-noise ratio of the cable. The cable is deenergized when a fault is detected on at least one of the filter branches.

An apparatus for detecting fault conditions in a power system is described. The apparatus may include one or more powered lines configured to output electricity to an electrical distribution system, a neutral line, an interrupter, and a controller. The controller may be configured for detecting when a fault condition is present in the power system. In response to detecting that the fault condition is present, the controller may cause the interrupter to interrupt the power supplied by the one or more powered lines. In response to detecting that the fault condition is no longer present, the controller may determine a power restoration delay time and cause the one or more powered lines to supply power to the electrical distribution system when the power restoration delay time has been elapsed.

The invention relates to the technical field of power distribution networks, and provides a grounding fault diagnosis device for a power distribution network, which comprises a square block, a hollow rod is movably embedded in the square block, a slender rod is fixedly mounted on one side of the square block, and a sliding block movably sleeves the outer surface of the slender rod. One side of the sliding block is rotationally connected with a plurality of upper semicircular blocks through rotating rods, and one sides of the upper semicircular blocks are rotationally connected with hollow blocks through rotating rods. In the embodiment of the invention, an electric push rod is started through an external power supply, the electric push rod drives a movable plate to move downwards, and a motor drives the rotating rods to rotate; the rotating rod drives the ground drilling rod to rotate, at the moment, the ground drilling rod rotates while moving downwards and can drill into the ground and make contact with a grounded wire, at the moment, fault detection is conducted on the grounded wire through the fault detector, and data are transmitted to the interior of the fault detector through the data line. It needs to be explained that the length of the telescopic rod can be determined according to actual conditions.

An electronic circuit comprises a fault output node that is switchable between a fault state, indicating a fault operating state, and a normal state, indicating a normal operating state, wherein the electronic circuit further comprises: a fault detector configured to detect a number of fault event signals from a plurality of fault event signals, each of the plurality of fault event signals indicating a different fault event associated with the electronic circuit; a fault mode signal generator configured to generate a fault mode signal based on the detected number of fault event signals; and a fault output node control unit configured toto receive the error mode signal and, in response to receiving the error mode signal: to switch the error output node to the error state and to output the error mode signal at the error output node by switching the error output node according to the error mode signal.

Reduce the number of ground fault detectors or circuits. [Solution] A ground fault detector 50 for power equipment includes a resistance grounding circuit 51 that grounds the P-phase power line 60P and N-phase power line 60N connecting a DC power supply 20 and a power converter 30 to the neutral point via a resistor, and a detection unit 53 that detects a ground fault based on at least one of the P-phase voltage and N-phase voltages V1 and V2 of the DC power supply 20. The detection unit 53 determines that there is an abnormality or an AC ground fault if periodically fluctuating voltage components S1 and S2 are superimposed on at least one of the P-phase voltage or N-phase voltages V1 and V2 of the DC power supply 20.

According to an embodiment, a control device includes a controller and a fault detector. The controller controls an electric motor. The fault detector detects a fault of the electric motor. The fault detector performs a frequency analysis of a voltage signal and a current signal that drive the electric motor. The fault detector determines, based on a result of the frequency analysis, whether or not the current signal includes an odd-order harmonic having a frequency that is odd multiples of a fundamental wave of the voltage signal. The fault detector determines, based on the result of the frequency analysis, whether or not the odd-order harmonic has a first phase angle that is a phase angle of an opposite phase with respect to a phase angle of the fundamental wave.

Systems, devices, methods, and computer-readable media for improved hyperspectral images are provided. A method includes determining first pixel data of a first frequency band of frequency bands of a pixel of a hyperspectral image corresponds to a failed detector, determining a neighboring pixel of neighboring pixels of the pixel that has a corresponding first spectral profile (i) most similar to a second spectral profile of the pixel and (ii) corresponds to a non-failed detector, determining second pixel data from the first spectral profile, and replacing the first pixel data with second pixel data in the second spectral profile.

An apparatus includes an input signal generator that provides a digital input signal to a first translator. The first translator corresponds to one of a supply translator or a drain translator. The supply translator controls actuation of a supply relay to deliver pressurized fluid to an actuator that is operably coupled to a valve in a process control system. The drain translator controls actuation of a drain relay to drain pressurized fluid from the actuator. The digital input signal triggers application of a current to the first translator to open the first translator. The apparatus also includes a fault detector to: determine a difference in at least one of a pressure in the actuator or a position of a flow control member in the valve; and detect a fault when the difference satisfies a fault threshold.

The subject matter of this specification can be embodied in a variety of forms, including a motor health monitoring system comprising an estimator module, the estimator module is configured to model one or more estimated motor values of the motor based on one or more motor control parameters and one or more motor control states; a non-transitory computer readable medium; and a fault detector module configured to (1) provide a fault signal based on the modeled one or more estimated motor values of the motor and a predetermined parameter threshold, and (2) modify the non-transitory computer readable medium based on the fault signal.

The application belongs to the technical field of fault detection and analysis in control system, and discloses a kind of hot reactor fault detection method based on polytope. Through the discretization analysis of the nonlinear model of hot reactor, the system dynamics under the condition of hot reactor failure is described by T-S fuzzy 2-D model. To solve the problem of unknown antecedent variables, a T-S fuzzy state observer is designed to calculate the estimated value of the antecedent variables using state estimation. On this basis, a T-S fuzzy fault detector is designed to generate a residual signal. Using the estimated-based method, a fault detection mechanism based on polytope is established to determine whether a fault has occurred according to the residual signal. Finally, the feasibility and effectiveness of the application are verified through simulation. The application first designs a T-S fuzzy 2-D model fault detector for hot reactor, and conducts fault detection based on polytope under the condition of unknown antecedent variables.

The present invention provides a glitch detector including a first inverter, second inverter, a charge sharing component and a warning flag generator. The first inverter is configured to receive a first signal at a first node to generate a second signal to a second node. The second inverter is configured to receive the second signal at the second node to generate the first signal to the first node. The charge sharing component is configured to selectively connect the first node to the second node. The warning flag generator is coupled to the first node or the second node, and configured to determine whether a supply voltage of the glitch detector suffers an under voltage glitch according to a voltage level of the first signal or a voltage level of the second signal, to determine whether to output a warning flag.

The disclosure relates to an electronic circuit, an electronic system, and a method. The electronic circuit includes a fault output node switchable between a fault state indicating a fault operating state and a normal state indicating a normal operating state, the electronic circuit further including: a fault detector configured to assert a number of fault event signals of a plurality of fault event signals, wherein each of the plurality of fault event signals indicates a different fault event associated with the electronic circuit, a fault mode signal generator configured to generate a fault mode signal based on the asserted number of fault event signals, and a fault output node control unit configured to receive the fault mode signal and, in response to receiving the fault mode signal, switch the fault output node to the fault state.

1. The name of the design product: portable acoustic emission mechanical seal failure detector shell (ESL). 2. The use of the design product: used for loading and protecting the acquisition board card, operation board card composition, wireless WiFi module (detachable) and hard disk storage module. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The present disclosure relates to a method performed by a fault detector (301) for detecting faults in components (105) in a vehicle (100). The fault detector (301) is connected in parallel to at least one component (105) of at least two serially connected components (202). The at least two serially connected components (105) are divided into at least two sections (303) each comprising at least one component (105). The method comprises: - obtaining (501) a first voltage level at an input point into each section (303); - obtaining (502) a second voltage level at an output point from each section (303); - comparing (503) the first voltage level with the second voltage level for each section and such that the voltage level over each section (303) is determined; and - determining (504) whether or not there is an indication of a fault in each section (303).