53results about How to "Improve troubleshooting capabilities" patented technology

The invention discloses a power distribution network line fault on-line monitoring and alarming system. The system includes a fault positioning software system and a power distribution line fault indicator. The fault positioning software system and the power distribution line fault indicator cooperate. The fault positioning software system includes an intrastation grounding line selection apparatus, a communication front-end processor, an injection signal source and an aerial conductor line fault positioning main station monitoring system. The grounding line selection apparatus and the injection signal source serve to perform single phase grounding fault positioning. The power distribution line fault indicator and a data acquisition concentrator are outrastation apparatuses. The data acquisition concentrator and the power distribution fault indicator form a subnetwork. Among the subnetworks, a monitoring system for a line via the intrastation communication front-end processor is constituted. The fault positioning software system and the power distribution line fault indicator communicate by using cascade via radio frequency. According to the invention, with the cooperation between the fault position software system on a fault line selection host computer and the power distribution fault indicator which has communication function on the line, information which indicates the position and time of the fault can be displayed within minutes of the occurrence of the fault on a geographic information system map of a monitoring center, which facilitates maintenance personnel to head to the site of the fault, eliminate the fault and increase reliability of power supply.

The invention discloses a method for blocking edge port in Ethernet ring network, Ethernet ring network system and equipment, belonging to the communication field. The method comprises: after receiving the main ring fault notice message transmitted by an auxiliary edge node, an edge node checks the number of the edge port; unblocking the edge port when the edge port has a number of one; selecting one edge port from multiple edge ports unblocked and blocking unselected edge port when the edge port has more than one; the edge node and auxiliary edge node of the system. The equipment comprises a main ring fault detection module and an edge port block module. When the main ring has multi-point fault, one edge port is unblocked and other edge ports are blocked, thereby ensuring the normal transmission of business flow and preventing broadcasting ring circuit.

The utility model discloses a processing method of the core network element restart / post-fault restoration, which comprises the following processes: during the calling process made by users, the core network element check the local data after receiving the call request from the user; if the corresponding data of the user have not been detected, a message or a plurality of messages is / are sent to the server, to which the user belongs, so as to request the registration state and business configuration data of the public user identifier of the user. In Response to the request message of the core network element, the server assigned to the user looks up the registration state and business configuration data of the public user identifier and returns to the core network element. The core network element uses the registration state and business configuration data of the public user identifier obtained from the server of the user, and performs the processing flow of the subsequent conservation.

A system and a method for processing communication network faults of the State Grid Corporation of China belong to the field of communication and aim at solving the problems of high workload, high consumption and low working efficiency caused by the fact that workers can only adopt a traditional method to process circuit faults according to the past working experiences. The system comprises a power communication resource database, an information scheduling unit, a fault judgment unit, a fault information output unit, a fault information collection unit, N communication rooms and N system terminals, and N is an integer. The fault processing method includes that the fault information collection unit collects fault signals of system terminals, the fault judgment unit classifies the fault signals, the information scheduling unit accesses the power communication resource database according to the fault index to find the fault processing information that the fault index corresponds to, the information scheduling unit transmits the terminal numbers and the fault processing information to the fault information output unit, and the fault processing information is displayed by the system terminals that the terminal numbers corresponds to. The system and the method can be used for assisting communication network fault processing.

The invention discloses a transformer anti-short circuit capability comprehensive control method; the method studies influence factors on a transformer that may receive short circuit impact, and searches, concludes, sorts and researches parameters that affect the transformer anti-short circuit capability. The method builds a system that takes the transformer anti-short circuit capability accounting, assessment and treatment as core, real time accesses transformer factory parameters and transformer operation parameters, formulates accounting, assessment and treatment standard operations, and converts a conventional planed repair maintenance mode of the grid equipment into a more scientific stateful maintenance mode, thus improving the grid equipment safety operation stability, and reducingthe losses caused by accidents.

The embodiment of the invention discloses a remote RM operation control method under the full-automatic operation of a rail transit signal system. The embodiment of the method is characterized in thata remote RM mode is provided beside a full-automatic operation mode, so that a train in the full-automatic operation mode can timely enter the remote RM mode to continue to run instead of stopping when an abnormal event occurs, and the purposes that after being degraded due to a fault, the train can continue to run to a platform, passengers can be evacuated, and process waiting is carried out areachieved. According to the embodiment of the method, the fault processing capability of the full-automatic operation system is improved, the system availability is improved, and the influence of thefault on the full-automatic line operation is reduced.

The invention provides a field fault handling system for an electric energy meter. The field fault handling system comprises a field application management platform and metering field handheld equipment. The field fault handling system is suitable for all types of smart electric energy meters and can download corresponding self diagnosis templates for different types of electric energy meter. The field fault handling system is advantageous in that accurate and reliable diagnosis result is realized; special equipment is equipped for emergency-repairing personnel; and experience and working capability of the emergency-repairing personnel are not required in fault checking and fault positioning.

The invention discloses a method for processing a signal failure of a control sensor by using a dual-redundancy control rule, and is characterized by providing the method for processing the signal failure of the control sensor by using the dual-redundancy control rule, a dual-redundancy control rule design concept and a copy dual-redundancy control rule design principle, and a copy control rule design method and a design process of the dual-redundancy control rule. The main control rule is designed with the goal of enabling an aero-engine to obtain optimal thrust and economy in full flight envelope and ensuring the working stability and the structure strength of the engine; and the copy control rule design method provided by the invention is to perform the copy control rule design according to the copy control rule design principle on the basis that the main control rule design is finished. The method has the following advantages that the failure processing property of a digital control system is improved, the mission reliability of the aero-engine can be improved, the requirement of real-time control of the high-performance aero-engine is satisfied more easily, the method is more liable to implement, and the combination property of the aero-engine is improved.

The invention discloses a computer fault detection device and a detection and maintenance method. The computer fault detection device comprises a detection control master board, wherein a system main processor, a master board power supply detection interface, an SATA power supply detection interface, an IDE power supply detection interface, an IDE / SATA power supply indicating lamp group, a temperature display screen and a master board detection information screen are arranged on the detection control master board, the temperature display screen is connected with a temperature probe, and the master board detection information screen is connected with a master board diagnosis card. The method comprises the steps of utilizing the power supply detection interfaces of the device to detect a host machine power supply and detecting a CPU, an internal memory and the master board of a computer through the master board diagnosis card and further comprises the steps of displayer detection, display card detection and hard disk detection. The computer fault detection device and the detection and maintenance method can help people to quickly find reasons of computer faults and remove the faults and shorten the computer maintenance time.

The invention provides an optimal scheme selection method for a satellite control system on the basis of reconfigurable constraints of failures. The method comprises the following steps: (1), providing a minimum feasible configuration set CS according to the observability and the controllability of the satellite control system; (2), performing a reconfigurable design on the satellite control system in response to the minimum feasible configuration set CS, and providing a feasible alternative design-scheme set DS on the basis of reconfigurable index constraints; (3), comprehensively considering the resource constraints of the system, and selecting a design scheme with optimal comprehensive properties from the alternative design-scheme set DS. According to the optimal scheme selection method disclosed by the invention, the reconstitution capability and the resource constraints of the satellite control system in the designing stage can be taken into account, and matched sensors and the type and the number of actuators are provided, so that the optimization of the comprehensive properties of the system under the condition of the reconfigurable constraints is satisfied. The optimal scheme selection method disclosed by the invention is simple and definite, and is suitable for the type selection and the configuration designs of sensors and actuators for the satellite control system in the development stage.

The invention discloses an automatic guided vehicle maintenance and repair prompt guiding device, belonging to the technical field of the automatic guided vehicle maintenance and repair. The device comprises an embedded computer, a mileage signal collector, an electrical machine vibrating machine, a power battery output current and temperature sensor, a signal conditioning circuit, an information storage circuit, a storage card, a liquid crystal display circuit, a power circuit, a system clock circuit, an information transmission circuit, a keyboard, a vehicle-mounted sound-light alarm circuit and a wireless alarm circuit; the device can dispose through the fusion algorithm of the multi-sensors information according to the travel distance of the automatic guided vehicle, the accumulated working time of a driving electrical machine and the output current and the real-time temperature of the power battery, sends a message to the dispatching center by the vehicle-mounted alarm device or the wireless network and automatically prompts and guides a user to maintain and repair the automatic guided vehicle, eliminates the accident hidden trouble, ensures the reliability and safety of the automatic guided vehicle using and prolongs the service life of the automatic guided vehicle.

The invention discloses a national power grid distribution network fault processing system. The system comprises a fault information acquisition unit, a fault determining unit, an information scheduling unit, a power communication resource database, and further comprises a fault information output unit, a unified control platform, a prevention control unit and a fault processing unit. The fault information acquisition unit is respectively connected with the output end of the prevention control unit and the output end of the fault processing unit through the output end of the unified control platform, and the fault information acquisition unit is connected with the power communication resource database through the fault determining unit and the information scheduling unit. According to the invention, the fault processing capability is high, the personnel consumption and the operation cost are reduced, the information sharing degree is enhanced, necessary technical and decision support are provided, the labor efficiency of employees and the enterprise benefits are improved, the power supply reliability of a power distribution network can be effectively improved, automatic fault identification, automatic fault isolation of the power distribution network and automatic power restoration of a non-fault area are realized, and safe operation of a power system is guaranteed.

The invention discloses an automatic test device for a meteorological radar. The device includes a test instrument functional assembly used for generating a test signal, performing a waveform test onthe radar, spectrum analysis, a power test, calibrating amplitude and phase consistency of a dual-polarization radar and providing an extended interface for the test functions, an embedded computer system which has built-in extensible test software based on the plug-in technology and is used for acquiring and processing feedback data of the test instrument functional assembly, and a display and operation module, wherein the embedded computer system is further connected with a radar terminal system of a tested radar to receive a test status and the test result issued by the radar terminal system, and the display and operation module is connected with the embedded computer system and is used for inputting an operational command and displaying the test status and the test result obtained by the embedded computer system. The device is advantaged in that the comprehensive test on the meteorological radar is realized, and problems that the test process in the prior art requires a variety ofinstruments and the instruments are inconvenient to carry, transport and use are solved.

The embodiment of the invention is applicable to the technical field of monitoring and alarm of a cloud platform, and provides an alarm information processing method and apparatus based on the cloud platform. The method comprises the following steps: receiving alarm information for a user service system; respectively performing statistics on the number of alarms of alarm information of any alarm factor according to a plurality of set alarm factors; in view of any alarm factor, comparing the number of alarms of the alarm factor with the number of target alarms with alarm information features meeting alarm factor features in a user alarm curve corresponding to a preset alarm factor; and if the ratio of the two numbers is greater than a preset threshold, processing the alarm information. By adoption of the alarm information processing method provided by the embodiment, the periodically triggered alarm information can not only be identified from the alarm information autonomously configured by a user, the alarm information that does not meet the user alarm curve can also be identified in time, so that the operation and maintenance personnel can conveniently process the abnormality caused to the cloud platform or underlying resources in advance, and the fault processing capability of the cloud platform and the service system is improved.

The invention discloses a spacecraft controlling force layout optimizing method for improving failure reconfigurability. The optimizing method comprises the following steps: adopting the smallest eigenvalue of the controllable Gramian matrix and the minimal radius of the attainable set as the performance index; adding into an optimized objective function after a spacecraft control system breaks down, so that the optimized result fully takes the performance into account after the spacecraft control system breaks down. Besides, an attainable set based unconstrained feasibility judgment method is designed, and is used for carrying out the feasibility judgment of the thruster configuration in the optimization process, so as to guarantee that the spacecraft control system can still have better service performance after the failure.

The invention provides an energy conservation optimization control method for a pump station. The liquid level difference E, the liquid level change rate EC and the pump starting number U are graded and classified; the membership table between the gear and the class number of the liquid level difference E is established according to the gauss function, and a state table for the gear of the liquid level difference E, the gear of the pump starting number U and the liquid level change rate EC is set; a control relation table among the classification of the liquid level difference E, the classification of the liquid level change rate EC and the classification of the pump starting number U is obtained through calculation of a weighted average method according to the membership table and the state table; and the relation table is controlled correspondingly according to a formula, the class number of the pump starting number U is obtained, afterwards the number of pumps needing to be started is obtained, and the pumps are started. The invention further provides an energy conservation optimization control system, and intelligent energy conservation optimization control over the pump station is achieved.

The embodiment of the invention discloses a distribution network automation simulation system and a distribution network fault simulation method. The distribution network automation simulation systemcomprises at least one transformer substation module and at least two cable distribution box modules, the cable distribution box modules are connected in series, the output end of the at least one transformer substation module is connected with a bus, and the cable distribution box modules are connected with the bus. Each cable distribution box module comprises a fault signal simulation unit, a terminal unit and a controllable switch, the fault signal simulation unit is used for outputting a fault signal of a set type, the terminal unit is used for acquiring an input signal and an output signal of the cable distribution box module, performing fault diagnosis on a simulation power distribution network segment to which the cable distribution box module belongs based on the input signal and the output signal, and outputting a switch control signal when it is determined that a fault exists in the corresponding simulation power distribution network section; and the controllable switch is connected with the terminal unit and is used for responding to the switch control signal to switch the on-off state of the corresponding simulation power distribution network segment.

The invention relates to a transformer substation relay protection onsite debugging mobile terminal. The mobile terminal is characterized in that the mobile terminal includes a housing which is fixedly provided with a terminal integrated bottom plate and a main board. The main board is provided with a micro-processor thereon. The housing is provided thereon with a touch screen which is fixedly connected to the terminal integrated bottom plate. The touch screen is connected to the micro-processor. The housing is also fixedly connected to a switch measuring board, an integrated optical power test and display module, an integrated power supply board card and a medium card slot which are connected to the micro-computer. According to the invention, the mobile terminal addresses too many replay protection test devices which are subject to debugging of an intelligent transformer substation and the following problem of inconvenient carrying, integrates multiple technologies and functions, and is designed to have an appearance which meets human engineering.

The present invention discloses a continuous casting secondary cooling strand surface temperature contact measurement device. The device is installed at a gap between continuous casting rollers and comprises a lifting cylinder, a cylinder connection piece, a pressing spring, a support, an anti-breaking returning node, a temperature measurement head, a roller, a strand surface, a rotation encoder, a threading and cooling air inlet, a temperature measurement rod, a temperature signal processor and a computer. Through adoption of contact measurement, the continuous casting secondary cooling strand surface temperature contact measurement device can eliminate influence of environment changing on temperature measurement, the temperature can be measured even if the strand surface has water film, water mist or oxidized scale, and the measurement precision is high; the continuous casting secondary cooling strand surface temperature contact measurement device is simple and small in structure and convenient to install, and is suitable for roller gap small casting blank surface temperature measurement; an electrical portion is separated from the temperature measurement head, the protection class reaches IP67, the environment adaptability is enhanced, and the device reliability is improved; and moreover, the anti-breaking returning node is arranged, the device fault processing capacity is improved, the damaging of the temperature measurement head is reduced, and the service life is improved.

The invention discloses a virtual ARINC 653 simulation verification platform, and relates to the field of airborne embedded simulation software. The invention aims at solving the problems that an existing real-time operating system based on the ARINC 653 standard is high in resource configuration requirement and poor in universality due to the fact that source codes are not public. The platform comprises partition management used for creating a plurality of partitions according to an XML configuration file and carrying out partition configuration on the partitions; scheduling the plurality ofpartitions according to a time window rotation mode, and scheduling the plurality of processes included in the partitions according to a priority preemption mode; the communication management module is used for completing communication between partitions based on the sampling port and the queue port according to a shared memory mechanism and partition configuration; completing communication between processes in the partitions based on the blackboard and the cache; and the health monitoring management module is used for receiving the error code sent by the partition and calling a processing function corresponding to the error code according to the error code to carry out error processing.

The invention relates to a system fault processing method and system based on a log construction support environment, and belongs to the technical field of fault operation and maintenance. The system comprises an acquisition point configuration module, an acquisition instruction module, a log detection acquisition end, a log processing module, a fault log feature library, a tag library, a case knowledge library, a fault processing module, a message distribution module and a fault processing client. According to the method and system, a support environment which is high in universality and convenient for centralized management is provided for operation and maintenance personnel to process various system faults in a complex application system environment, and the problems of difficulty in fault log information collection, personnel organization and cooperation, knowledge experience sharing and continuous knowledge experience accumulation in the fault processing process can be effectively solved. The system fault processing efficiency can be greatly optimized, and the fault processing capability of operation and maintenance personnel is continuously improved.

A drum shearer electrical module detection test bed comprises a main control box and an electrical detection module. The main control box comprises an indicating lamp, a display screen, a button switch, a signal generator, an analog potentiometer, an EPU module detection interface, a motor controller module detection interface and an electric leakage detection module interface. The electrical detection module comprises an EPU module, a motor protector module, an electric leakage detection module, a communication cable, a coupling module, a signal converter module and a main controller IPC module. The EPU module comprises a motor protector module, a current transformer and a vacuum contactor; the signal generator is connected to a shearer to-be-tested module through a wire, and the signal converter module and the coupling module are sequentially connected to the shearer to-be-tested module; the signal converter module is connected with the EPU module, the motor protector module and theelectric leakage detection module and then connected to the main controller IPC module. According to the detection method, whether each shearer electrical module is normal is detected, and the fault processing capacity is improved.

The invention relates to an ISOP type direct-current distribution transformer and a control method thereof. The ISOP type direct-current distribution transformer comprises n cascaded sub-modules, wherein each sub-module comprises a double-Buck circuit, a half-bridge converter, a high-frequency transformer and a full-bridge converter; one end of the primary side of the high-frequency transformer isconnected with the double-Buck circuit, the other end is connected with the half-bridge converter, and the secondary side of the high-frequency transformer is connected with the full-bridge converter. According to the technical scheme provided by the invention, the n cascaded sub-modules are adopted, and each sub-module comprises a double-Buck circuit, a half-bridge converter, a high-frequency transformer and a full-bridge converter, the problems of low reliability and poor DC fault inhibition capability in the direct-current power distribution network in the prior art are solved, the fault processing capability is improved, the high-frequency operation is realized, the power density of the device is improved, and more convenient conditions are provided for the application of the direct-current power distribution network in the future.

The invention discloses a distribution line fault self-healing capability comprehensive analysis system and method. The system comprises a distribution network information unit, a static analysis unit, a dynamic perception unit, a dynamic analysis unit, a comprehensive analysis unit and an early warning unit. According to the invention, the method comprises the steps: acquiring the power distribution network information, sensing the dynamic operation data of the power distribution network, analyzing the fault self-healing capability of the power distribution line, providing a capability improvement solution, and performing early warning on the self-healing capability of the power distribution line. According to the invention, the analysis capability of the fault self-healing capability ofthe distribution line is greatly improved; static and dynamic analysis results of the distribution line are integrated; a self-healing capability result of the distribution line is given, early warning is given in time, and a self-healing capability improvement scheme is provided, so each department can conveniently master the self-healing capability condition of the distribution line and make a line fault emergency plan, a basis is provided for development and construction of a power distribution network and configuration and maintenance of automatic equipment, and the fault processing capability of the power distribution network is improved.

The invention provides a comprehensive evaluation method for the anti-short-circuit capability of a transformer. The comprehensive evaluation method comprises the following steps: 1, collecting various parameters influencing the anti-short-circuit capability of the transformer; 2, establishing an analysis platform based on a mathematical model, and importing standard data; 3, comparing the detection data with the standard data; 4, obtaining required data by inquiring factory parameter data of a transformer under each operation unit and merging the factory parameter data; 5, calculating the short circuit resisting capability; 6, carrying out preliminary judgment according to a result obtained by calculation in the step 5; 7, taking a calculated short circuit current limit value as observation data through state evaluation; 8, according to the evaluation state and the actual operation condition of the transformer, enabling the field personnel to decide whether to give out early warning; and 9, entering an early warning processing flow. A traditional planned maintenance mode of the power grid equipment is converted into a more scientific stateful maintenance mode, the stability of safe operation of the power grid equipment is improved, and losses caused by accidents are reduced.

The invention discloses a voltage and current double-closed-loop direct-current speed regulation system assessment device, which comprises a voltage and current double-closed-loop speed regulation circuit (I), a supplementary circuit (II) and a fault debugging panel (III), and is characterized in that wires (wherein dotted lines are in non-electrical connection) are connected between the voltage and current double-closed-loop speed regulation circuit (I) and the supplementary circuit (II) and between the voltage and current double-closed-loop speed regulation circuit (I) and the fault debugging panel (III) according to electrical lines, fault points K1 to K5 are arranged in the voltage and current double-closed-loop speed regulation circuit (I), and the fault points are connected with a fault switch on the fault debugging panel through a relay in the supplementary circuit (II). The comprehensive capabilities of fault searching, fault analysis, fault solving and the like of students forthe voltage and current double-closed-loop direct-current speed regulation technology can be cultivated.

The invention discloses a three-level full-bridge converter practical training examination device, which is provided with a tetragonal box body, transparent panels are arranged on the periphery and the upper portion of the tetragonal box body, and a three-level full-bridge converter and an auxiliary circuit are arranged at the bottom of the box body. The three-level full-bridge converter circuit comprises an input EMI (01), an input rectifier (02), an input filter (03), a TL ZVZCS PWM DC / DC converter (04), UC3875 and SG3525 control circuits (05), a drive circuit, (06) and a protection circuit(07), wherein the auxiliary circuit comprises a relay, and the three-level full-bridge converter circuit is electrically connected with the auxiliary circuit. Fault points K1 to K6 are arranged in thethree-level full-bridge converter, and the fault points are connected with a fault operation switch on a panel of the box body through a relay of the auxiliary circuit.