30results about How to "Shorten troubleshooting time" patented technology

The invention discloses a feed line automation system which comprises a main station system, a point-to-point equity communication network and a distribution automation terminal FTU (Feeder Terminal Unit). The FTU connects to the point-to-point equity communication network. The main station system connects with a communication processor CP which connects to the point-to-point equity communication network. The point-to-point equity communication network is used for realizing direct communication between adjacent FTUs. The FTU is used for positioning a fault, isolating the fault and recovering power supply of a non fault section. The CP is used for forwarding FTU data to the main station. The main station receives the FTU data forwarded by the main station, and the data is provided to work personnel of the main station as time processing sequence soe information.

The invention provides a charging pile fault prediction method and device based on a Markov chain, and the method comprises: obtaining a state vector of a target charging pile in an initial time period, and enabling the state vector to serve as the initial state probability distribution of a preset charging pile Markov chain prediction model; wherein the Markov chain prediction model of the charging pile is used for representing a discrete event random process in which a non-fault state and at least one fault state of the charging pile are mutually converted and different fault states of the charging pile are mutually converted; and according to the initial state probability distribution and the Markov chain prediction model, determining the probability that the target charging pile has atleast one fault in a prediction time period. Automatic fault prediction of the charging pile can be achieved, the prediction process is efficient, the prediction result is accurate, and then timely and targeted maintenance can be conducted on the fault of the charging pile.

The invention discloses a low-voltage circuit fault locating terminal and method used for a power distribution substation region. The fault locating terminal comprises a power distribution transformer monitoring wireless communication module, a power distribution transformer monitoring warning module, a voltage sensor, a current sensor and the like. A power circuit, a fault identifying circuit and a signal indicating circuit are arranged in a power distribution transformer monitoring collecting module. The power circuit, the fault identifying circuit and the signal indicating circuit are mutually connected, the signal indicating circuit is mutually connected with the power distribution transformer monitoring wireless communication module and the power distribution transformer monitoring warning module, a secondary-side winding of the voltage sensor is connected to the power circuit and the fault identifying circuit through signal cables, and a secondary-side winding of the current sensor is connected to the fault identifying circuit through a signal cable. The fault locating terminal can correctly judge access of short-circuit fault currents, fault region information is sent to a background system for locating through wireless communication, and therefore the locating problem of various fault circuit sections and branch circuits is solved.

The invention relates to a fault self-diagnosis system and method for an electronic control system and belongs to a vehicle fault self-diagnosis system and method. The fault self-diagnosis system comprises a fault identification module, a fault processing module, a fault reminding module, a fault code storage module and a fault code eliminating module. The fault self-diagnosis method comprises the following steps: detecting fault information of each component in an automatic clutch system in real time, judging a specific location where a fault occurs, reminding a driver that the system is in fault and storing the fault information for providing guidance for a maintenance man, so that the maintenance man can conveniently and rapidly find the specific location where the fault occurs and replace a damaged part. The fault self-diagnosis system and method provided by the invention have the advantages that the system and method are different from the traditional manual fault isolation, an electronic means is utilized for detecting and diagnosing functions and faults of system components, accurate fault information can be produced, the faults are rapidly and accurately located, fault check time is shortened, and fault isolation efficiency is greatly improved.

The invention discloses a fault removal operating method for a high-voltage frequency converter. The method comprises the steps that when the high-voltage frequency converter can not be started after being powered on, whether an operation power source switch of the high-voltage frequency converter is connected or not is checked, whether a UPS is connected within an interval of a controller of the high-voltage frequency converter or not is checked, if the operation power source switch and the UPS are not connected, the operation power source switch and the UPS are connected, and the system resets after a fault of the high-voltage frequency converter is removed; when a light fault alarm is given, whether the light fault alarm is the cabinet door interlocking alarm or the transformer over-temperature alarm or not is checked; after the fault is removed, a fault indicator light should be turned off; when a heavy fault alarm is given, whether the heavy fault is a power unit optical fiber fault or a power unit overvoltage fault or a high-voltage frequency converter overcurrent fault or not is checked, the system resets after the fault is removed, and the high-voltage frequency converter is restarted. By the application of the fault removal operating method, the fault processing time is greatly shortened and the utilization rate of the high-voltage frequency converter is improved.

The invention provides a design method of a high-reliability ground measurement and control link in an electrical test of a satellite launching region. The method includes following steps: step 1, two pairs of ground measurement and control antennas are erected on a tower fixing platform, uplink and downlink shunting are performed through a plurality of circulators, the two pairs of ground measurement and control antennas are respectively connected to a main interface and a backup interface of a base RF fiber repeating system, and when the ground measurement and control antennas of the main interface are shielded or not stable, base personnel directly switches to the backup antennas through a switch matrix of the fiber repeating system. According to the method, conventional equipment resources can be fully utilized, the redundant heat backup design of the ground measurement and control link is performed, and the troubleshooting time is reduced as much as possible.

The invention discloses a continual mining working face equipment remote monitoring and control system. The system comprises a host computer, an Ethernet ring network platform, a KZ-A control cabinet, a KZ-B control cabinet, a first Modbus communication module and a second Modbus communication module. The KZ-A control cabinet is accessed to the host computer through the Ethernet ring network platform, the KZ-A control cabinet is internally provided with a processor CPU, the KZ-B control cabinet is a remote station of the KZ-A control cabinet, and the two cabinets are connected through a cable; and the KZ-A control cabinet is electrically connected with an onsite device through the first Modbus communication module, and the KZ-B control cabinet is electrically connected with the onsite device through the second Modbus communication module. The continual mining working face equipment remote monitoring and control system has such functions as continual mining working face onsite equipment data display, remote control, equipment alarm and the like, can remotely monitor data of parameters of the onsite device, such as operation state, electric quantity and the like, and improves the automation information degree of a mine.

The invention discloses a positive rail grounding fault positioning method of a fourth rail backflow traction power supply system, which specifically comprises the following steps of: determining which power supply section a fault section is located in and an uplink or downlink line of the section by using differential current, and determining a fault position by using a fault positioning formulaprovided by the invention. The method is not affected by traction loads, the unit resistance of the positive rail and the unit resistance of the negative rail can be different, the fault patrol time is shortened, and the system operation efficiency and safety are improved.

The invention discloses a fault processing method and device and processing equipment. The method comprises the steps of acquiring fault information of a current fault of a machine room; judging whether the current fault is a set first type of fault according to the fault information; under the condition that the current fault information is the first type of fault information, sending a fault processing request to the user terminal; after receiving a processing confirmation instruction fed back by the user terminal according to the fault processing request, carrying out fault processing on the current fault according to the fault information;. The current fault is processed according to the feedback instructions of the user terminals corresponding to the current different faults, so thatthe management of various change activities of the data center can be standardized, operation and maintenance personnel are guided to orderly process the faults, the fault processing time is shortened, the service interruption is avoided, and the safe and stable operation of each system is ensured.

The invention discloses a numerical control machining stage monitoring system. System hardware mainly comprises a monitoring computer (1), a PROFIBUS (2), a PROFIBUS-RS232/485 bus bridge (3) and a data acquisition module (4). The numerical control machining stage monitoring system also comprises a relay (5) according to the length of the PROFIBUS. A state signal is acquired by adopting the remote data acquisition module, the numerical control machining stage monitoring system is connected with all numerical control devices through the PROFIBUS for transmitting information acquired by the acquisition module, is connected with a field device data acquisition module by using the PROFIBUS-RS232-485 bus bridge, and is connected with the upper monitoring computer through a bus adapter card for monitoring an operation configuration MCGS (Monitor and Control Generated System) on the computer and processing acquired data information. The numerical control machining stage monitoring system provides a feasible and convenient means for troubleshooting and maintaining a production device, automatically realizes production output statistics, improves the automation degree of workshop production management and reduces the labor intensity of operators.

The invention relates to a PLC hardware fault diagnosis platform constructing method. In the process, CPU operating state information and network state information are extracted in various different types of PLC control systems to a preset PLC fault state word, the fault state word of each PLC system is transmitted to a database of communication interface software Kepware of a fault diagnosis platform server through an industrial Ethernet network, an OPC function of Kepware is used to communicate data in the database to an RSView Supervisory Edition software monitoring platform interface, andthe hardware state information of the control system is visualized. A fault point can be timely and accurately judged, an alarm record is generated, the fault processing time is greatly reduced, the maintenance efficiency of the control system is improved, analysis and diagnosis of the deterioration trend of the hardware performance of the control system can be realized through the alarm record and historical record functions, and preventive maintenance and state maintenance can be realized.

The invention discloses a method and a device for controlling preferential tripping of power grid at sea. The method for controlling the preferential tripping of a power grid at sea comprises the following steps of: acquiring and analyzing the real-time state signals of a power grid system at sea; determining pre-fault which may occur possibly; determining a load which should be unloaded when thepre-fault occurs; and unloading the proper load when the pre-fault occurs. The method and device provided by the invention are intended for the power grid system at sea exclusively. By the method anddevice, the fault which may occur is estimated in advance according to the real-time state of the power grid system at sea, and then unloading schemes are determined according to the estimated fault.When the fault occurs, the system can be protected according to the unloading scheme, so the fault handling time is saved, and the safety, stability and reliability of the power grid system at sea are effectively improved.

The invention provides a fault line selection system for a single phase ground fault in a low current grounded system. The fault line selection system involves that: a sampling unit completes the operation of single acquisition and algorithm processing, etc, and a man-machine unit is mainly responsible for displaying a man-machine interface and bulk memory storing, and an acquisition unit and the man-machine unit exchange information through an ARM board. The sampling unit has the advantages of strong capability of data processing, capability of processing large amount of data, and capability of fast real-time processing, etc, and thus a high-precision data acquisition system is constituted, and the acquisition precision and the acquisition speed are increased. The mutual connection among the sampling unit and the general-purpose ARM board and the man-machine unit enables the apparatus to work in an efficient and reliable manner. At the same time, the sampling unit, the ARM board and the man-machine unit also work independently and perform processing work individually. A photoelectric coupled isolate circuit which is also provided in the apparatus increases the flexibility and anti-interference of the apparatus. According to the invention, the apparatus increases the accuracy of determining a line grounding fault, shortens the time for fault inquiry, reduces daily maintenance work loads of distribution network lines, increases work efficiency and guarantees the reliable operation of the distribution network system.

The invention discloses a failure short-message alarming device. The theory that a high-voltage switch cabinet state indicator does not correspond to a separating brake handle is utilized. High-voltage switch cabinet operation backstage signals are collected in a centralized mode. Short messages are sent in the first time to inform power supply scheduling staff and relevant staff so as to enable the power supply scheduling staff and the relevant staff to get to know failure points and failure equipment through originally-set message words. Consequently, the failure short-message alarming device greatly saves failure search time, brings convenience to quick failure treatment and power supply recover, and prevents further expansion of accidents.

The invention relates to a method for diagnosing an input signal fault of a PLC system by using a counter, and belongs to the technical field of automatic control. The method comprises the steps of assigning the fault diagnosis CTU counter to each input signal causing a controlled device to stop running; using a fault state of the input signal as an enable bit of the CTU counter, setting a presetvalue of the counter as 1, wherein a completion bit (.DN) of the counter is communicated with corresponding signal fault lock; determining the fault cause of the controlled device to stop running by checking the completion bit (.DN) of the fault diagnosis CTU counter and the corresponding signal fault lock. The method has the advantages that a PLC system input signal fault is diagnosed by using acounter programming program in the PLC controller, and the input signal fault can be quickly and accurately locked, thereby saving the fault processing time and improving the response speed of the fault processing.

The invention discloses a locomotive electrical fault diagnosis device comprising multiple independent unit circuits, and positive connecting terminals (6) and a negative connecting terminal (9) which are connected with each unit circuit. Each unit circuit comprises current-limiting resistors (5) and indicating lamps (3) which are connected in series with the current-limiting resistors (5). The diagnosis device is connected in parallel with a locomotive circuit via the positive connecting terminals (6) and the negative connecting terminal (9) According to the diagnosis device, problems that locomotive electrical fault points are not easy to search can be effectively solved.

The invention discloses a method and device for controlling display of a display screen and a touch screen. The method includes the steps of detecting whether or not a display area of the display screen has failure points; determining a failure area of the display screen according to the failure points when it is detected that the display area has the failure points; determining a valid area of the display screen according to the failure area; displaying the content to be displayed on the valid area. The method achieves the purpose that after a screen portion of the display screen fails, the valid area of the display screen can be reused to work normally.

The invention relates to an alarm distinguishing method for turnout split and loss representation of urban rail transit, which comprises the following steps that: step 1) during access handling or turnout operation, an interlocking system sends out a turnout action instruction, and a turnout and related equipment perform corresponding actions; (2) the interlocking system judges the positioning andreversing states of the turnout by collecting nodes of a DBJ representation relay or an FBJ representation relay; (3) the interlocking system judges whether the turnout loss state exceeds a set valueor not, and if yes, it is determined that the turnout is in a turnout split state; and (4) the interlocking system collects a turnout area occupation clearing indication relay, further determines whether it is occupation split or loss representation split, and transmits information to an ATS, and the ATS performs related split alarm or loss representation alarm. Compared with the prior art, the method has the advantages that the fault influence operation time can be reduced as much as possible, and the fault first-aid repair time can be shortened.

The embodiment of the invention discloses a fault maintenance method of a sample analyzer, and the sample analyzer, in order to automatically guide a user to perform fault recovery, shorten the troubleshooting time and improve the working efficiency. The fault maintenance method of the sample analyzer comprises the following steps: the sample analyzer executes a corresponding workflow according toan instruction; if a fault occurs in the workflow, the sample analyzer records fault information; and the sample analyzer displays the fault information and a fault recovery indication, wherein the fault recovery indication is used for guiding the user to perform fault recovery. Optionally, the fault recovery indication may be specifically a fault recovery button.

The invention relates to a belt wheel rotation manual control device. The device consists of a forward button 1, a forward contactor 2, a reverse button 3, a reverse contactor 4, a stop button 5, a current transformer 6, an ammeter 7, a control panel 8, and a signal control cable 9, wherein the forward contactor 2 and the reverse contactor 4 are used for controlling the forward and reverse rotation of a motor, and manual rotation of a belt wheel is replaced.; the current transformer 6 is used for detecting a current value of the motor; and the ammeter 7 is used for displaying the current value of the motor. The belt wheel rotation manual control device has main advantages that a test method is scientific and accurate; and manual rotation of the belt wheel is replaced, so that the failure eliminating time is reduced.

The present invention belongs to the technical field of short-wave communication equipment application, and discloses a system and a method for detection of automatic antenna tuner network faults. Thesystem comprises a PC upper computer, a control unit, an impedance detection unit and an antenna tuner network unit. The PC upper computer is in serial communication with a debugging port of the control unit through a RS232 serial port, a first control signal output end on the control unit is connected with a control signal input end of the impedance detection unit, a second control signal outputend on the control unit is connected with a control signal input end of the antenna tuner network unit, an impedance detection end of the impedance detection unit is in bidirectional connection withan impedance detection end of the antenna tuner network unit, and a detection signal output end of the impedance detection unit is connected with a detection signal input end of the control unit. Thesystem and the method for detection of automatic antenna tuner network faults can automatically complete online detection of faults of the antenna tuner network unit to avoid repeat dismounting and mounting of the antenna tuner and network devices in the antenna tuner.

The invention relates to a low-current grounding fault positioning and alarming method based on a fault indicator. The method comprises the following steps: synchronously acquiring current data and voltage data of each phase of a low-current grounding system line in a fault period in real time; when it is determined that the small-current grounding fault occurs, injecting a capacitive load into abus-side non-fault phase of the transformer substation with the fault, and exiting the capacitive load after a certain period of time; determining a specific fault area of the fault by analyzing the current variation within a certain delay time before and after the capacitive load injection; and sending the fault information to a line patrol personnel mobile terminal. According to the invention, the fault occurrence area and the fault occurrence time can be timely, rapidly and accurately determined, and the fault occurrence rate is reduced.

The invention provides a method and a system for analyzing and processing events of a three-winding main transformer based on multi-source data. The method comprises the following steps: performing fault judgment and processing according to action information and time mark information of each monitoring device of the main transformer; performing preliminary judgment on internal and/or external faults of the main transformer according to the protection action type; corresponding historical equipment data and field equipment data are extracted according to the fault type of the main transformer for difference comparison, and the fault of the main transformer is further determined and processed based on the difference comparison result; and performing fault judgment and processing on the main transformer equipment, the main transformer control loop and background signals based on the health degrees of the main transformer primary and secondary equipment. According to the method, the related data of each part of the main transformer is acquired, and corresponding fault judgment and processing are respectively performed, so that the analysis accuracy is improved, the main transformer event fault analysis process is combed, and the fault finding time is greatly shortened.

The invention discloses an ARO soldering pliers fault detection method, which relates to the field of automobile manufacturing. The method comprises ARO soldering pliers servo motor fault detection, ARO soldering pliers transformer fault detection, ARO soldering pliers encoder cable fault detection and network cable function fault detection. The ARO soldering pliers servo motor fault detection comprises servo motor over-temperature detection and pressure measurement loop error detection. The ARO soldering pliers transformer fault detection comprises transformer temperature loop and voltage feedback line state detection. The ARO welding pliers encoder cable fault detection comprises encoder cable state detection. According to the invention, the working principle and common faults of the AROautomatic welding gun are analyzed; according to working characteristics and rapid maintenance requirements of an automatic welding production line, an online fault detection instrument capable of rapidly detecting faults of the ARO automatic welding gun is designed and manufactured, automatic operation of the production line can be rapidly recovered, and yield and economic losses caused by equipment shutdown are reduced.

The embodiment of the invention provides an abnormal fault intelligent diagnosis method based on robot operation. The method comprises the steps of obtaining working data of a robot; constructing an alarm information association analysis rule and a signal data cleaning rule; performing alarm information association analysis processing on the working data on the basis of the alarm information association analysis rule; and performing signal data cleaning processing on the basis of the signal data cleaning rule. Layer-by-layer detection and layered screening are realized by performing multiple subdivision on the alarm information, so that the fault position is quickly determined, the intelligent degree is high, the fault diagnosis time is greatly saved, the fault diagnosis efficiency is improved, and meanwhile, the diagnosis accuracy is improved.

The invention relates to a trackside auxiliary positioning method, device, equipment and medium for an out-of-position train, and the method comprises the steps: S1, after the train is out of position, an operator terminal sends an instruction of switching to an RSRM driving mode to vehicle-mounted equipment through an ATS; s2, the vehicle-mounted equipment prepares to be switched to an RSRM driving mode after receiving the ATS instruction, and sends an operation request of the RSRM driving mode to a corresponding ZC; s3, after the ZC receives the effective RSRM driving mode operation request message, auxiliary positioning is calculated for the train, and the auxiliary positioning is sent to the vehicle-mounted equipment; s4, the vehicle-mounted equipment constructs self-safety positioning position information according to the auxiliary positioning information sent by the ZC, and interacts with the corresponding ZC through a positioning position message subsequently; and S5, after the ZC receives the positioning position message of the train in the RSRM driving mode, calculating normal movement authorization for the train according to the set logic. Compared with the prior art, the method has the advantages that the operation efficiency of the unmanned train is improved, and the like.

An implementation method of network connectivity troubleshooting can solve the existing technical problem that the causes of unsmooth services and failed PING existed during the process of network maintenance or opening are difficult to check, and is based on an interface counting module, an interface counting switch, an access control list, and an associated access control list counting module. The troubleshooting method comprises the following steps: S100, setting the interface counting switch, and closing all interface counting; S200, configuring an access control list, and setting a rule of messages; S300, setting the association between the access control list and the interface counting, determining the access control list for filtering by the interface, performing interface countingon the messages that meet the access control list, and counting the different packet length intervals according to the message lengths; and S400, checking the interface counting to determine the faulty device. The method can quickly delimit which device has packet loss in a complex network, thereby performing targeted progress investigation and quickly finding the cause of the network failure.

The invention relates to the field of base frame operation and maintenance, and discloses an activity directory monitoring method based on a Windows Server operating system and related equipment. Themethod comprises the following steps: presetting a first monitoring mode and a second monitoring mode in a Windows Server operating system, and establishing a combined monitoring mode for an activitydirectory in the Windows Server operating system according to the first monitoring mode and the second monitoring mode; monitoring the activity catalogue according to the combined monitoring mode established for the activity catalogue, and detecting the detection index items of the activity catalogue in the monitoring process to obtain a detection result; and performing information feedback according to the obtained detection result. The AD service is monitored in different modes, the monitoring result is fed back, the current state of the AD service can be obtained in time, the problem of theAD service is solved according to the current state, the fault solving time is shortened, and the system efficiency is improved.

The invention relates to the technical field of aircraft alarm detection, in particular to an aircraft alarm computer automatic detection device and a test method thereof.The automatic detection device comprises a hardware unit which comprises a PXI case, various board cards and a PXI zero-slot controller are integrated in the hardware unit, and a computer master control function is achieved through the PXI zero-slot controller; the automatic detection device also comprises software unit comprising a software starting interface, a test board main interface, an automatic test interface, a manual test interface and a metering maintenance interface; and the invention also comprises a test adapter connected with the PXI case through a VPC connecting piece and connected with the alarm computer to be detected by an adapter cable. According to the invention, a test and inspection means is provided for a test product, a test record is provided, the test efficiency is improved, and archiving, maintenance troubleshooting and quality tracing are facilitated.

The invention relates to a ground fault detection method for a a power distribution network power transmission line. The method comprises the following steps: acquiring a three-phase current value inthe power transmission line in real time; detecting a ground fault according to the sampled three-phase current, and obtaining a time point t corresponding to the moment when the ground fault is justdetected; determining whether the fault is a single-phase ground fault or a two-phase ground fault according to the three phase current break variables and the current amplitudes at the moment t; andafter the ground fault is determined, generating a fault alarm signal and sending the fault alarm signal to an intelligent terminal corresponding to the branch line through a wireless communication device. According to the invention, the fault occurrence area and the fault occurrence time can be timely, rapidly and accurately determined, and the fault occurrence rate is reduced.