96 results about "Fault indicator" patented technology

The present invention belongs to the technical field of signal processing, and particularly relates to a multi-source data fusion fault diagnosis method and system based on the DS evidence theory. The method of the present invention comprises: first, collecting multi-source information of a mechanical device, wherein the multi-source information includes vibration data, image data and sound data; respectively calculating corresponding feature indicators; then, using a PCA algorithm to perform dimensionality reduction processing on the indicators; using a Bayesian fault diagnosis model to perform fault diagnosis, so as to obtain a diagnosis result from each sensor; and then, using the DS evidence theory to perform fault fusion diagnosis. The present invention can comprehensively consider the characteristics of various types of data, extract more effective fault indicators, achieve more comprehensive fault identification, and fuse diagnosis results from a plurality of sensors, thereby ensuring the accuracy of final diagnosis. The present invention is suitable for fault diagnosis of various complex mechanical systems.

The invention relates to the technical field of fault positioning, in particular to a power distribution network line fault positioning method and system based on a fault indicator, and the method comprises the following steps: obtaining node current data, calculating a jump rate, screening an early warning node, recognizing an intersection section, determining a fault position, and generating a recognition result. According to the invention, through collecting periodic current data of each node fault indicator, combining node numbers and topological structure mapping, systematically establishing a current sequence table and calculating a current increment difference value in unit time, and through grade division and periodic stability identification of a jump rate, key nodes with early warning characteristics can be accurately screened. The method comprises the following steps of: acquiring a path intersection area, positioning a fault centralized distribution section by virtue of jump intensity trend change analysis of the path intersection area, and determining a fault initial position and a grade identifier in combination with a comparison relationship between a sampling time point and trigger delay between nodes, so that accurate identification and quick response of a multi-path fault are realized under a complex topological structure of a power distribution network.

The invention relates to the technical field of electric power, and particularly discloses a power distribution branch box monitoring system and method based on a fault indicator, which can compensate for short-time limitation of real-time data by performing compensation and correction through historical load data and operation instruction information, so that a dynamic topological structure diagram at a first moment is more fit with an actual power grid operation state, and the power distribution branch box monitoring accuracy is improved. It is guaranteed that the topological structure of the dynamic topological structure diagram is dynamically updated along with changes of a power grid, the corrected dynamic topological structure diagram can accurately reflect the real connection relation and the electrical distance of the branch box, the quantization result of the branch correlation degree matrix is made to be more suitable for the correlation degree of the actual power grid, and therefore the reliability of the branch correlation degree matrix is improved through dynamic construction logic of the dynamic topological structure diagram. The method can adapt to the dynamic change process of the topological graph of the power distribution network, achieves the effect of dynamically monitoring the fault of the power distribution branch box, and achieves the purpose of reducing the false alarm rate.

A memory built-in self-test (BIST) controller, corresponding to a partition BIST controller, is configured to control memory testing in one or more corresponding static random access memories (RAMs) and has a first corresponding register configured to store a failure indicator for each of the one or more corresponding RAMs and a second corresponding register configured to store an uncorrectable failure indicator for each of the one or more corresponding RAMs. The partition BIST controller is configured to generate, based on the first and second registers of the MBIST controller, a first in-field test status indicator which indicates whether a failure occurred during memory testing of any RAM corresponding to the partition BIST controller and a second in-field test status indicator which indicates whether an uncorrectable failure occurred during the memory testing of any RAM corresponding to the partition BIST controller.

The invention relates to a multi-source heterogeneous data linkage power distribution data transmission safety supervision method, which comprises the following steps that: a safety supervision gateway receives heterogeneous data streams from an intelligent electric meter, a power distribution terminal, a fault indicator and a distributed energy monitoring unit, and analyzes original data of a protocol by using a multi-protocol analysis engine; the method comprises the following steps: analyzing data, extracting standardized data load and metadata, classifying according to equipment types, content criticality and business domains on the basis of analyzed data and a preset strategy library, dynamically marking security levels of the data, continuously monitoring data sending frequency, flow, connection duration and instruction sequence rationality of each terminal in a transmission process, and transmitting the data to the terminal. And carrying out dynamic trust evaluation and updating a trust value, forwarding encrypted or signed data to a power distribution master station or a data center through an optimal path, carrying out deep detection in the whole process, and recording a full-quantity security log which comprises a source IP, a target IP, a data size, a timestamp and an event type.

The invention discloses a power distribution network master station fault positioning method and system based on multi-dimensional information fusion, and relates to the technical field of intelligent power grids, and the method comprises the steps: obtaining FTU electrical quantity data, circuit breaker monitoring terminal switching value data and fault indicator state signal data; constructing a power distribution network structure matrix D in a normal operation state, and generating a fault information matrix G based on the state signal data; performing normalization processing on the electrical quantity and switching value data, and converting the electrical quantity and switching value data into a time axis image; inputting the image sequence into a convolutional neural network for deep learning, extracting fault features and outputting an inter-node fault initial probability matrix Q; and fusing Q, D, G and three types of original data, performing multi-dimensional information fusion by adopting a D-S evidence theory, generating a final fault probability matrix S, and outputting a fault section and type with the highest probability. According to the method, CNN feature extraction is guided by a topological matrix D / G, and the misjudgment rate of fault positioning is reduced through D-S fusion of electrical features, topological association and equipment state weights.

A building management system including one or more storage devices storing instructions thereon that, when executed by one or more processors, cause the one or more processors to ingest asset information; cause a graphical model of the building to include a fault indicator based on the asset information, the fault indicator corresponding to a fault occurring on a first physical asset corresponding to a first virtual asset; cause a display device of a user device to display the graphical model within a user interface; receive a selection of the fault indicator from a user via the user interface; and in response to receiving the selection, cause the user interface to navigate to a fault-driven view of the graphical model depicting the first virtual asset and one or more second virtual assets corresponding to one or more second physical assets affected by the fault occurring on the first physical asset.

The invention discloses a high-voltage diverter and a sampling device, and belongs to the technical field of diverters, the high-voltage diverter comprises a main body mechanism, and the main body mechanism is internally provided with a disconnection mechanism used for automatic disconnection when a fault occurs and two terminal mechanisms used for wiring; through the linkage design of the built-in temperature sensing piece and the disconnecting mechanism, automatic and accurate fault protection is achieved, when the internal temperature of equipment abnormally rises due to faults and exceeds a safety threshold value, the temperature sensing piece is heated to deform and triggers the disconnecting mechanism, energy stored by the extension spring is used for rapidly driving the on-off connecting piece to act, a main circuit is reliably disconnected, and the safety of the equipment is improved. Meanwhile, the action can be linked with the top protruding block to be self-locked and protrude out of the surface of the protection shell, an intuitive and striking mechanical fault indicator is formed, accident expansion is effectively prevented, definite fault point positioning can be provided for operation and maintenance personnel, the troubleshooting time is shortened, and the safety and maintainability of the system are improved.

The invention relates to a circuit for realizing multi-path power supply output under-voltage fault indication, and belongs to the field of power supply converters. The invention provides a circuit for realizing multi-path power supply output undervoltage fault indication. The circuit comprises voltage-regulator tubes D2 and D3, resistors R2, R3, R4, R5 and R6, photoelectric couplers U1 and U3, MOS (Metal Oxide Semiconductor) tubes U2 and U4, an indication lamp D1 and a 3.3 V power supply V3. According to the circuit, under-voltage fault monitoring can be carried out on the output voltage of multiple paths of power supplies, the circuit is not limited to whether the outputs of the paths are in common ground or not, the under-voltage threshold value of the output voltage can be set by adjusting the voltage stabilizing value of the voltage stabilizing tube, and when any path is under-voltage, the fault indicating lamp can be triggered to work. Every time one path of output voltage detection is added, a primary optocoupler is connected in series in a detection main loop.

The application discloses a transformer operation state comprehensive intelligent monitoring system, which comprises an information acquisition unit, a preprocessing unit, a core analysis unit, an optimization design unit and an early warning unit. The operation data and environmental data of the transformer are collected by the information acquisition unit, and are preliminarily analyzed by the preprocessing unit. Then, the transformer monitoring model is constructed by the core analysis unit, the influence function between the environmental data and the operation data is built by monitoring the working environment of the transformer, the sensitivity of the transformer to environmental changes is improved, the accuracy of the transformer monitoring model is analyzed by the optimization design unit, the fault indicators are processed in a targeted manner, the accuracy of fault repair and risk response is improved, the prediction risk degree of the transformer is deeply analyzed and evaluated by the early warning unit, and the early warning signal is generated to realize early warning processing of the fault, so that the sudden influence of abnormal climate and environmental changes on the transformer can be responded.

The application belongs to the technical field of electrical appliances, and particularly relates to a smart electric meter with a self-cleaning function, which comprises an electric meter, the surface of the electric meter is provided with an observation window, one side of the observation window is provided with a cleaning frame, the cleaning frame and the surface of the electric meter are in sliding connection, a moving plate is in sliding connection with the inside of the cleaning frame, one side of the moving plate is in sliding connection with a scraper, the lower surface of the scraper is in close contact with the surface of the electric meter, the surface of the scraper is provided with a plurality of tooth blocks, one side of the scraper is provided with a rack, the rack is in fixed connection with the inner wall of the cleaning frame, and the rack and the tooth blocks are in meshing connection. The device drives the scraper in the cleaning frame to move through a lead screw, thereby automatically cleaning the impurities on the observation window of the electric meter, avoiding the observation window of the outdoor electric meter from being easy to accumulate dust, causing the observation window to be unclear, making the meter reading data be misread, the equipment fault indicator light be unable to be recognized, and thus the problem of the electric meter fault being not found in time.

The application provides a power distribution line multi-pseudo fault point checking method based on a multi-frequency signal, the checking method comprises a single-ended traveling wave positioning method, a traveling wave positioning terminal for traveling wave positioning is installed at a first end of a line feeder of a transformer substation, current signals collected by power distribution terminals at power distribution lines are collected, and pseudo fault points are excluded according to current frequency information of the current signals and position information of the traveling wave positioning, so that a real fault point is determined; the power distribution terminal comprises a pole-mounted switch and a fault indicator; the application has high economy, can accurately identify the real fault position from multiple pseudo fault points, and can solve the problems of serious pseudo point interference and difficult discrimination of the real fault point in the single-ended method.

This invention belongs to the field of power equipment monitoring technology, specifically relating to a non-intrusive monitoring system and method for switchgear fault indicators. The system includes: a non-contact optical sensing unit, installed on the outside of the switchgear panel via a magnetic structure, for acquiring the brightness timing signal of the fault indicator light; an electrical parameter acquisition unit, for acquiring the electrical parameter timing signal of the circuit associated with the fault indicator light; and an edge computing unit, deploying a fault diagnosis neural network model with a hybrid neural network architecture, for performing feature fusion processing on the two time-aligned signals, outputting a status recognition result to distinguish between correct alarms caused by line faults and false alarms caused by abnormalities in the indicator light itself. This invention achieves non-intrusive retrofitting of fault indicators in old switchgear, converting local light signals into remotely transmittable digital quantities without dismantling or modifying the cabinet or electrical circuits, and effectively identifying true and false alarms through multi-source signal fusion analysis.

The invention relates to an unmanned aerial vehicle airborne power line fault indicator hanging and taking device and method. The hanging and taking device comprises an unmanned aerial vehicle body, an insulating connecting rod, a fault indicator tray, a driving motor, a hanging and taking mechanical arm and an electric control module. One end of the insulating connecting rod is mounted at the bottom of the unmanned aerial vehicle body through a universal joint, and the fault indicator tray is fixed at the other end of the insulating connecting rod; the fault indicator tray is provided with an installation cavity matched with the fault indicator, and a limiting shifting piece matched with a notch in the bottom of the fault indicator is arranged in the installation cavity. The driving motor is fixed on one side of the fault indicator tray and is in driving connection with the hanging mechanical arm, the end part of the hanging mechanical arm is matched with the side part of the upper cover of the fault indicator in a buckling manner, and the upper cover of the fault indicator is driven to act through the driving motor. Compared with the prior art, the device has the advantages of being high in structural reliability, capable of achieving mounting and taking down of the fault indicator, convenient to operate and the like.

The invention discloses a power transmission and distribution line remote transmission fault indicator and a detection method thereof, and relates to the technical field of indicators, the indicator comprises an indicator body, the bottom surface of the indicator body is fixedly provided with a warning lamp, and the lower part of the surface of the indicator body is fixedly provided with a cover body; a top seat is arranged at the top end of the indicator body, an L-shaped groove is formed in the surface of the top seat, a clamping column is clamped in the L-shaped groove, and one end of the clamping column is fixedly connected to the surface of the indicator body. The device is reasonable in structure, a clamping plate on an opening and closing assembly can be conveniently opened through an adjusting assembly, when the clamping plate moves to the surface position of a cable, a rotating plate on a limiting assembly is pulled, so that the clamping plate is conveniently clamped to the surface of the cable through the elastic force of a first spring, cooperative installation work does not need to be conducted through an auxiliary assembly, and the working efficiency is improved. And the safety of high-altitude operation is improved.

The utility model provides a fault indicator using lora communication. The fault indicator comprises a control unit, and a permalloy power taking circuit, a Rogowski coil sampling circuit, a LoRA module circuit, an LED control circuit and other auxiliary circuits which are all in communication connection with the control unit. The other auxiliary circuits comprise a watchdog circuit, a turning circuit and an electric field sampling circuit, and the watchdog circuit, the turning circuit and the electric field sampling circuit are all in communication connection with the control unit. The fault indicator has the beneficial effects that the fault indicator selects the 255MESH lora module, and the self-routing function of the 255MESH lora module is utilized to enable the node to automatically calculate the routing, so that the dependence on the central node is reduced, and the flexibility and the reliability of the network are improved; the power consumption is reduced by applying multiple dormancy mechanisms, the system adapts to different application scenes, the communication distance can be greatly increased, the anti-interference capability is enhanced, and the system also has an expansion function and flexibility.

1. Name of the product in this design: Graphical User Interface for a Mixer Truck Range Extender System of Electronic Equipment. 2. Intended use of this design: for use in an electronic device. 3. The key design features of this product are the graphical user interface content on the screen. 4. The image or photograph that best illustrates the design's key features: the front view. 5. Purpose of the graphical user interface: It is used to monitor parameters such as power generation, power consumption, and drive motor speed during the operation of the mixer truck range extender system. It provides a dynamic human-machine interface for real-time display and adjustment of important parameters (power supply, working mode, tank motor speed, etc.) and monitoring during system use. 6. Human-computer interaction method of graphical user interface: The main view is the initial interface. After the boot animation finishes playing in the main view, the interface changes as shown in Figure 1. Click the "Software Version - Mixer Truck" button in Interface Change Status Diagram 1 to enter Interface Change Status Diagram 2. Click the System Status button in Interface Change Status Diagram 2 to enter Interface Change Status Diagram 3. When a fault or warning occurs in interface change state diagram 3, the interface change state diagram 4 will be displayed. Click the fault indicator light icon button in interface change state diagram 4 to enter interface change state diagram 5. After the screen panel has been idle for a period of time in the interface change state diagram 5, it will enter the interface change state diagram 6.

The utility model relates to the technical field of overload control boxes, in particular to a source science and technology overload control device for highway traffic and transportation enterprises. Comprising a control box, a control panel, an upper cover plate and a side cover plate, the control panel comprises a power supply main switch, power supply sockets, a 220V input interface, a 220V output interface, a 12V output interface, a fault display screen, a partition plate and a network communication module, the power supply main switch is installed above the control panel, the power supply sockets are installed on the right side of the power supply main switch, and the three power supply sockets are arranged along a linear array; a 220V input interface is installed on the left side of the power supply main switch, a 220V output interface is installed below the 220V input interface, a 12V output interface is installed below the 220V output interface, a fault display screen is installed on the right side of the 12V output interface, indicator lamps are arranged on the right side of the fault display screen, and the indicator lamps comprise a power supply indicator lamp and a fault indicator lamp. A partition plate is installed below the fault display screen, and a network communication module is installed below the partition plate.

The invention relates to a power transmission and distribution line fault remote transmission indicator on-line monitoring method, system and device, and belongs to the technical field of power transmission and distribution line operation monitoring. Comprising the following steps of: acquiring multi-dimensional signals triggered by dynamic thresholds: acquiring line voltage, current, main harmonic frequency of transient signals and attenuation factor signals in real time through a fault indicator; direct electric connection signal transmission: the analog electric signal output by the fault indicator is directly accessed to an online monitoring device, and a digital signal is obtained through analog-to-digital conversion; multi-mode remote data uploading: the online monitoring device uploads data through a multi-mode communication module, and dynamically switches communication modes according to signal strength and data volume; a trigger threshold value can be dynamically adjusted, multi-dimensional signals are collected in real time, data are uploaded through the multi-mode communication module, accurate positioning and type identification of faults are achieved, and therefore the accuracy and timeliness of fault monitoring are improved.

A malfunction indicator assembly for a suite door slidable along a redundant rail system. The malfunction indicator assembly includes a weighted malfunction indicator pivotally mountable to a stationary wall and carrying a first magnet, and a second magnet mountable to one end of a secondary rail and carriage subassembly proximal to the weighted malfunction indicator. In use, in the absence of primary rail and carriage subassembly failure, a magnetic connection is maintained between the first and second magnets such that the indicator does not present outside of a vertical plane of the stationary wall, and in the presence of the primary rail and carriage failure the magnetic connection is broken to present the indicator outside of the vertical plane of the stationary wall. In embodiments, upper and lower malfunction indicators operate independently to report failures.

This invention discloses a method and apparatus for fault diagnosis of permanent magnet synchronous motors based on zero-sequence voltage signals. The method includes: connecting a zero-sequence symmetrical resistor network to the input terminals of the three-phase stator windings of the permanent magnet synchronous motor; measuring the voltage difference between the neutral point of the three-phase windings and the neutral point of the zero-sequence resistor network to obtain a zero-sequence voltage signal; extracting the fundamental frequency amplitude as a fault indicator using Fast Fourier Decomposition based on the zero-sequence voltage signal, and comparing it with a set threshold to determine whether a static eccentricity fault or a stator inter-turn short-circuit fault exists; if the value is greater than the threshold, a negative d-axis current is applied to the permanent magnet synchronous motor to obtain the fault indicator under this operating condition, and the difference is calculated with the aforementioned fault indicator to obtain the fault indicator difference value; based on the fault indicator difference value, if the value is greater than 0, a static eccentricity fault is diagnosed; if the value is less than 0, a stator inter-turn short-circuit fault is diagnosed. This method can be used to diagnose and distinguish between static eccentricity faults and stator inter-turn short-circuit faults in permanent magnet synchronous motors.

The invention belongs to the technical field of power distribution network line distributed fault positioning and isolating devices, and particularly relates to a power distribution network line distributed fault positioning and isolating device and method. Wherein the data receiving module receives data sent by a fault indicator, and transmits remote signaling and alarm data to the analysis and calculation module; the recording file receiving and decompression module receives recording file data sent by the fault indicator, receives and decompresses the recording file data, and transmits the received and decompressed recording file data to the analysis and calculation module; and the analysis and calculation module analyzes and calculates the received remote signaling and alarm data and the decompressed recording file data, and transmits the result to a feeder terminal in the primary and secondary fusion pole-mounted switch, and the feeder terminal in the primary and secondary fusion pole-mounted switch locally realizes fault positioning and isolation on the calculated and analyzed result. The method further improves the fault positioning capability of the power distribution network line, remarkably improves the power supply reliability of the power distribution network line, and shortens the fault handling time.

The invention discloses a remote monitoring platform for a line fault indicator, and relates to the technical field of remote monitoring platforms, the remote monitoring platform comprises a cable body, and the outer surface of the cable body is provided with a monitoring assembly used for remote monitoring of cable line faults. According to the remote monitoring platform for the line fault indicator, when an inclination angle sensor and a displacement sensor detect that the shaking strength of a cable body is too large, in order to guarantee normal operation of an intelligent high-precision fault indicator body, a blade type two-way conveying pump is started, and magnetic fluid is conveyed into a storage tank through a communicating pipe; the weight at the position of the intelligent high-precision fault indicator body is increased and is solidified through the electromagnetic coil body, so that the stability of the counterweight at the position of the intelligent high-precision fault indicator body is ensured; the problem that in the prior art, most intelligent high-precision fault indicators directly bear cable vibration impact, equipment is prone to slipping, and normal operation of the intelligent high-precision fault indicators is affected is solved.

The invention discloses a power distribution network operation state monitoring method and system, and relates to the technical field of power distribution network monitoring, and the method comprises the steps: obtaining the feature data and monitoring demands of a power distribution network, inputting the monitoring demands into a preset demand weight list, matching the monitoring demands with corresponding parameter weights, and carrying out the multi-dimensional evaluation of the feature data through employing the parameter weights. And when the initial operation state is an early warning state, inputting the feature data into a pre-trained operation state evaluation model for state evaluation to obtain a corresponding target operation state, and when the initial operation state is not the early warning state, determining the target operation state from the initial operation state. The technical problems that a traditional power distribution network state monitoring method mainly depends on an SCADA system, a fault indicator, manual inspection and other modes, potential risks of a power grid are difficult to capture in time, fault response lag is likely to be caused, and the operation reliability of the power distribution network is reduced are solved.

This disclosure relates to systems and methods for improved anomaly detection of rotating machines. Example methods may include determining the rotational speed of the rotating machine. Example methods may also include using a frequency domain transform of a signal from the rotating machine to determine a frequency domain signal. Example methods may also include determining a first frequency band within the frequency domain signal for identifying fault frequencies of the rotating machine based on the rotational speed of the rotating machine. Example methods may also include determining the fault frequency of the rotating machine within the first frequency band. Example methods may also include determining a second frequency band within the first frequency band based on the fault frequency, wherein the second frequency band includes the fault frequency. Example methods may also include determining a first fault indicator and a baseline of the first fault indicator based on the second frequency band. Example methods may also include determining a fault condition of the rotating machine based on the deviation of the second fault indicator from the baseline. Example methods may also include providing an alarm based on the fault condition of the rotating machine.

The invention relates to the technical field of electric power system fault indicator installation, in particular to a mechanical device for installing a fault indicator in an electric power system, which is characterized in that an insulating rod is matched with a shelving piece, and a vertical positioning wall limits that the installation angles of a spring clamp, an electric power circuit (cable) and electric power equipment are not staggered under the action of external force on the fault indicator; the installation position is accurate, and the installation efficiency is high. The radial supporting rod provides supporting force for opening the spring clamp, so that the spring clamp is in an opening state all the time before retraction. And then the fault indicator is jacked by the jacking mechanism, the spring clamp upwards slides out and rebounds along the radial supporting rod, and the fault indicator is hung on an electric power circuit (cable) and electric power equipment. After the pressing mechanism is manually operated and the fault indicator is jacked for a pressing stroke, the jacking mechanism jacks the spring clamp to be separated from the radial supporting rod, the fault indicator is hung on an electric power circuit (cable) and electric power equipment, the pressing spring rebounds to drive the insulating rod core to return to the initial position, and operation is convenient, labor-saving and rapid.

The present application relates to the field of electric power engineering, and particularly relates to a kind of installation and disassembly tool of distribution network fault indicator. Including cylinder main body, buckle, elastic base, fixed mechanism and unbuckling mechanism, the bottom of cylinder main body is provided with bottom shell, the side of cylinder main body is provided with buckle, prevent fault indicator from coming out;Elastic base is arranged on the bottom shell in the inside of cylinder main body, and elastic base is used to support fault indicator, so that fault indicator can move relative to cylinder main body;Fixed mechanism is arranged on cylinder main body, for fixing fault indicator into open state when installation;Unbuckling mechanism is arranged on the side of cylinder main body, for disassembling fault indicator. The existing installation tool has the following defects, the mechanism of fault indicator installation tool is complex and is prone to false triggering, when disassembling fault indicator, since dust is easily caused in carding interface, therefore, when disassembling, often cause annular arm to be unable to separate.

The invention relates to a zero-sequence electric field waveform reconstruction method and system for a distribution network fault indicator, and belongs to the technical field of power distribution automation, and the method comprises the steps: superposing three-phase electric field waveforms collected by the distribution network fault indicator to generate initial zero-sequence electric field waveforms, and determining a cyclic wave with a minimum effective value in the initial zero-sequence electric field waveforms as a reference cyclic wave; calculating the amplitude correction coefficient of each phase of electric field based on the amplitude relationship of the three-phase electric field in the reference cycle, and performing amplitude calibration on the waveform of each phase of electric field by using the amplitude correction coefficient; calculating the time correction value of each phase of electric field based on the peak time relationship of the three-phase electric field waveform in the reference cycle, and performing synchronous calibration on the sampling time of each phase of electric field waveform by using the time correction value; and superposing the three-phase electric field waveforms after amplitude and time calibration to obtain a reconstructed zero-sequence electric field waveform.

The application relates to the technical field of electric power, and particularly discloses a power distribution branch box monitoring system and method based on a fault indicator, which can compensate and correct through historical load data and operation instruction information, can make up for the short-time limitation of real-time data, can make the dynamic topology structure diagram at the first moment more conform to the actual power grid operation state, can guarantee that the topology structure of the dynamic topology structure diagram is dynamically updated with the change of the power grid, the corrected dynamic topology diagram can accurately reflect the real connection relationship and electrical distance of the branch box, the quantization result of the branch correlation matrix is more conform to the correlation degree of the actual power grid, and through the dynamic construction logic of the dynamic topology structure diagram, the dynamic change process of the power distribution network topology diagram can be adapted, the effect of dynamically monitoring the fault of the power distribution branch box is achieved, and the purpose of reducing the false alarm rate is achieved.

The invention discloses a fault display system, a server and a fault display method, and relates to the technical field of servers, the fault display system comprises a first indicating lamp module and a button module; the processing module is configured to control the first indicating lamp module and the button module to enter a fault display mode when at least one function button is identified to be triggered according to a preset triggering mode; and in the fault display mode, obtaining fault information of the server in a self-inspection state, determining a fault code according to the fault information, determining display states of the fault indication lamp and the button indication lamp according to the fault code, and multiplexing at least one of the fault indication lamp and the button indication lamp to display the fault information according to the display states. The problems that the processing efficiency is low and manpower and material resources are wasted due to the fact that a server in the related technology needs to disassemble hardware to read fault codes due to shielding of a high-density module are solved.