44results about How to "Troubleshooting in time" patented technology

The invention relates to a method for online monitoring the content of gas in transformer oil and a system thereof. A gas optoacoustic spectroscopy is adopted to measure the gas dissolved in the transformer oil, namely, after the gas is sent into an opto-acoustic pond, a gas circuit valve is closed, laser sent by a laser is used for radiating sample gas in the opto-acoustic pond, sound wave is generated by the gas which passes through light-absorbing pulse, and the intensity of the sound wave is detected by a rheomicrophone; then, a signal is amplified by preposing and phase locking, and the data of the signal is collected by a high-accuracy digital-analog converter and a DSP data transmitter and stored; at the same time, opto-acoustic phase drift analysis is carried out by a lock-in amplifier, and the running quality or fault category and fault severity of an electrical power unit is exactly judged according to the sorts and the concentration of the gas, thus judging the running state or the property and degree of fault of the electrical power unit with high accuracy. The invention has simple structure and stable running, and can realize online monitoring for a long time.

The invention provides a self-learning method for double-clutch automatic gearbox shifting fork shifting force. The method comprises the steps that when the self-learning condition is met, gear shifting is conducted with default shifting force, and whether gear pre-engagement can be achieved or not is judged; if gear pre-engagement can be achieved through the default shifting force, the default shifting force is decreased by a first preset value, gear shifting is conducted again, and if gear pre-engagement can still be achieved, the operation that the default shifting force is decreased by the first preset value is repeatedly executed, until gear pre-engagement fails; and the last shifting force before failure of gear pre-engagement times a set safety coefficient to serve as new default shifting force, and self-learning is completed. The method can reduce noise caused by abrasion to a gear-shifting shifting fork, and the service life can be prolonged.

The invention discloses a file access method, a file access system and equipment, wherein the equipment comprises a downloading server. The downloading server comprises a file storage, a downloading request processor, a log storage and a log processor; the file storage is configured for storing local files; the downloading request processor is configured for receiving a file downloading request sent by a client; a file corresponding to the file downloading request is looked for in the file storage, and the found file is returned to the client; the log storage is configured for storing a log which records the processing of the file downloading request through the downloading request processor; the log processor is configured for extracting a file missing log record which indicates that the requested file is not stored in the file storage from the log storage; and according to the extracted file missing log record, the missed file of the downloading server is determined, and is downloaded to the file storage. With the adoption of the file access method, the file access system and the equipment, timeliness of fault handling of an access failure method and user access experience can be improved.

The invention provides a panoramic easy-to-view intelligent operation and maintenance system, which is characterized by comprising a business data acquisition module, a business path analysis module and an alarm event analysis module. The business data acquisition module is used for acquiring transaction data of a business application system. The business path analysis module is used for displaying the change condition of preset business index information within a preset time range of a user by analyzing the transaction data, and visualizing the access relation of real-time business; The alarmevent analysis module is used for analyzing the transaction data; and displaying the alarm event information in the user selection range in the form of a list and a distribution diagram, According tothe embodiment of the invention, the transaction data of the business application system are intelligently analyzed, the access relation is visualized, multi-index accurate positioning display is carried out on the alarm event distribution, the system helps operation and maintenance personnel to better understand the business, and automatic discovery, rapid positioning and timely processing of faults are realized.

The invention provides a fault processing method and a fault processing device, which are used for a business processing system constituted by a plurality of servers. The fault processing method is characterized in that when a request server is used to issue an invoking request to an invoking server, the invoking request is monitored; the request server is any one of a plurality of servers, and the invoking server is any one of a plurality of servers, which is required to be invoked by the request server; whether the response to the invoking request is successful can be monitored; when the response to the invoking request is failed, the fault prompting information can be generated, and can be used to notify the user of the faults of the invoking server. The fault processing timeliness can be improved.

The invention relates to a remote fault detection and processing system of a DC power supply screen, which comprises a high-frequency intelligent PLC (Programmable Logic Controller), a background debugging PC (Personal Computer), a PLC communication module and a background communication module, wherein the high-frequency intelligent PLC is connected with the PLC communication module, the background communication module is connected with the background debugging PC, and the PLC communication module is connected with the background communication module. Compared with the prior art, the invention can save manpower and material resources, greatly reduces the maintenance cost of a faulty DC screen, shortens the maintenance time of the faulty DC screen and increases the stable operation reliability of the DC power supply screen.

The embodiment of the invention discloses a WLAN fault detection method and device. An on-site mobile terminal is connected into a wireless network through a wireless access point, position information of the terminal and an interference source within the range of the wireless network are obtained through calculation by obtaining information in messages reported by network management equipment according to the wireless access point in the wireless network, an on-site three-dimensional model is built by combining the position of the wireless access point, the detection area capable of being covered with the mobile terminal on the on-site three-dimensional model is determined through the on-site three-dimensional model and the area map and position of an area where the on-site three-dimensional model is located, based on the condition of information sharing with the network management equipment, the mobile terminal carries out fault detection on the wireless access point, the terminal, the interference source and the like in the detection area, and therefore it is ensured that on-site faults are found fast, the faults are removed more timely under the conditions of finding the faults in time, and the aim of improving the fault removing efficiency is achieved.

The invention belongs to the technical field of computers and particularly relates to a computer fault alarm system and method. The computer fault alarm system includes a sensor component. The outputend of the sensor component is electrically connected with the input end of a data processing module, the output end of the data processing module is electrically connected with the input end of a single-chip microcomputer, the input end of the single-chip microcomputer is electrically connected with the output end of a fault diagnosis module, the input end of a BIOS chip is electrically connectedto the output end of a computer mainboard, and the output end of the single-chip microcomputer is electrically connected with a driving module and the input end of a GSM wireless module. Through thecollection of various parameters of the computer and through the inference analysis, the diagnosis of computer fault is achieved, to ensure the efficiency and accuracy of the fault diagnosis. Based ona GSM technology, a fault information technology is transmitted to a mobile phone of a relevant person, which facilitates timely fault handling and improves the efficiency of fault handling.

Disclosed is a protection and control system for a control rod power supply system. The protection and control system comprises a control rod power supply system protection apparatus, a control apparatus for controlling a control switch of a generator according to a signal provided by the protection apparatus, a PLC apparatus for outputting an equipment protection control instruction, and a generator control switch for controlling the starting and stopping of the generator; the protection and control system also comprises a hard-wired protection circuit, an interlocking control switch for automatically switching a protection circuit to the hard-wired protection circuit, a magnetic blow-out switch control apparatus and a low-frequency protection switch control apparatus; and the protection apparatus comprises a generator differential protection apparatus, a generator inversion power protection apparatus, a generator field loss protection apparatus, a generator overcurrent protection apparatus and a low-frequency protection switch. By optimizing low-frequency protection maloperation logic caused by PT air switch tripping, the operational stability of an RAM system is also improved.

The invention discloses an outdoor intelligent power supply management system. The outdoor intelligent power supply management system comprises an outdoor intelligent integrated power supply and an outdoor power supply running management platform, wherein the outdoor power supply running management platform is in network connection with the outdoor intelligent integrated power supply, the outdoor intelligent integrated power supply comprises a master control circuit, an AC/DC conversion circuit, a temperature sampler, a lightning protection circuit, an entrance guard alarm, a RS485 communicator and a uart to Ethernet interface, the AC/DC conversion circuit is connected with the master control circuit, the temperature sampler is connected with the master control circuit, the lighting protection circuit is connected with the master control circuit and the AC/DC conversion circuit respectively, the entrance guard alarm is connected with the master control circuit, the RS485 communicator is connected with the master control circuit, the uart to Ethernet interface is connected with the master control circuit, and a uart to Ethernet interface on the master control circuit is connected with the outdoor power supply running management platform. The outdoor intelligent power supply management system has effects of running stability and convenience in management, and a fault is timely handled.

A connection oriented business configuration and management method which belongs to network communication field. The method comprises the following procedures: executing batch configuration in appointed link by graphical network management system through pre-appointing all links passed by VPN business, and saving business information in DB of graphical network management system for network maintenance staff search, checking business detail, detecting business connectivity, and monitoring business flow, delay and jitter. The method described in the invention makes that new VPN business can be started rapidly through graphical network management by network maintenance staff; all VPN business loaded in network and real path passed by each VPN business can be checked; VPN business can be monitored and supervised; fault treatment can be done at real time.

The invention discloses grain drying equipment, and relates to the technical field of grain drying. The grain drying equipment comprises a bottom plate; the top of the bottom plate is fixedly connected with a case; the top of the case is fixedly connected with a grain cabinet through a fixing frame; a first stirring shaft and a second stirring shaft are rotatably connected between the two sides ofthe inner wall of the grain cabinet through bearings in sequence from top to bottom, and one end of the first stirring shaft and one end of the second stirring shaft penetrate through the grain cabinet and extend out of the grain cabinet; and the end, extending out of the grain cabinet, of the first stirring shaft is fixedly connected with a first belt pulley. According to the grain drying equipment, the drying effect is greatly enhanced, the automation degree is increased, a worker does not need to spend a large amount of time in grain drying, thus the labor intensity of the worker is greatly relieved, the work efficiency of the worker is improved, the grain is automatically dried quickly and efficiently, and thus grain drying work of the worker is greatly facilitated.

The invention discloses a vehicle explosion-proof battery scheme and system. The scheme comprises the following steps: S10, judging whether a battery management system is in a wake-up state, if yes, carrying out S20, and if not, carrying out S30; S20, judging whether the information, such as the single battery pack voltage, the temperature and the battery pack air pressure sent by a slave board reaches a safety threshold value point or not through the battery management system mainboard, if so, carrying out S21, and if not, returning to the S10; S30, detecting whether the air pressure in the battery pack reaches a safety threshold point or not through an air pressure sensor, if so, executing S40, and if not, returning to the S10; and S40, opening a fire hydrant, and performing rapid fire extinguishing and cooling work on the on-fire battery pack. Key parameters such as air pressure, insulation resistance, temperature and current are monitored in real time through the battery management system in the control strategy level, fault processing is carried out when a power battery system is abnormal, and a fire hydrant can be actively opened to prevent thermal runaway spreading of a battery pack when thermal runaway happens to the battery system.

An overall architecture design method for an intelligent comprehensive operation and maintenance system relates to the technical field of intelligent synthesis, adopts an integrated hardware architecture design, takes an onboard computer as a core, takes each subsystem of a detector as a whole, overall plans and distributes resources, and combines lower computers in the design of the detector into functional modules of a single machine. A private cloud platform is constructed by using a hyper-convergence technology, and calculation, storage, network and security resources and management components are all fused into a server. According to the invention, through comprehensive management and deployment of elements such as operation and maintenance personnel, network equipment and fault repair in the network operation and maintenance process, in combination with corresponding monitoring functions, network faults can be checked at the highest speed, monitored accidents and dangerous cases are processed, the fault repair time is effectively shortened, and the network operation and maintenance efficiency is improved. Meanwhile, the operation and maintenance personnel can timely discover and quickly position the fault of the campus network at the terminal management office, so that the operation and maintenance personnel can timely process the fault, and the normal operation of the operation and maintenance system is ensured.

The invention provides a remote control device debugging system and method. The system comprises to-be-debugged field control devices, field debugging computers, a first Internet access device, a second Internet access device and a remote debugging computer, wherein the first Internet access device accesses to the field debugging computers of the Internet and is in communication connection with the field control devices, the second Internet access device accesses to the remote debugging computer of the Internet, logs in the field debugging computers through remote control software and takes over operation control rights of the field debugging computers, and remote debugging, maintenance and software upgrade of the field control devices are carried out by the remote debugging computer through the field debugging computers. The system is advantaged in that concentrated remote debugging, maintenance and software upgrade of the field control devices distributed at different geographic positions can be carried out to guarantee that the field control devices timely acquire debugging, maintenance and upgrade, and background technical support for realizing long-term safe and reliable operation can be further provided.

The invention relates to an intelligent watch used for fault first-aid repair. The intelligent watch is provided with a fault first-aid repair APP module, a communication module, a display screen and a buzzer which are connected with a processor. The intelligent watch represents a new application of modern technology in power industry. An information informing APP is disposed in the intelligent watch, control personnel can timely inform line double serial number and protecting action condition to first-aid repair personnel, the first-aid repair personnel can edit arrival time and fault reason and then send the arrival time and the fault reason to the control personnel, and the objective of quick and correct fault handling is achieved; operation inspecting personnel wears the intelligent watch after starting to work, and the control personnel sends information to the intelligent watch of line maintenance and power transformation operation and maintenance personnel after protecting action and fault signal are monitored to enable the line maintenance and power transformation operation and maintenance personnel to find line faults and check in-station switches.

The invention provides a control method of a motor controller used for a small battery electric vehicle. The method includes an initialization process and a major cycle process. The initialization process comprises parameter initialization and device initialization, and a stored armature excitation curve is read during parameter initialization; and device initialization comprises single-chip microcomputer initialization, A/D chip initialization and serial port initialization. After the initialization process is finished, the major cycle process is conducted, whether execution marks of all tasks corresponding to a switching value processing module, a fault detection module, a serial port processing module, an excitation PWM processing module, an armature PWM processing module and a watchdogprocessing module are effective or not is judged, when the corresponding marks are effective, task functions of the corresponding modules are called, after operation of tasks is finished, the major cycle is conducted continuously, and programs of all functional modules can be continuously and cyclically executed when the controller operates normally. The method has the beneficial effects that control is simple, the switching value response speed is high, reliability is high, fault processing can be conducted in time, and traveling safety is improved.

The invention provides a power distribution network grounding fault processing method based on an arc suppression coil parallel resistor, and the method comprises the following steps: judging whether a single-phase short-circuit grounding fault occurs in a power distribution network is an intermittent fault or not; if the fault is not the intermittent fault, arc suppression is carried out through the arc suppression coil in the compensation time; if the fault of the power distribution network does not disappear after arc extinction, it is judged that a permanent fault occurs; when the intermittent fault or the permanent fault occurs in the power distribution network, estimating the transition resistance value of a fault point, and evaluating the reliability of a line selection result; and according to the transition resistance value of the fault point and the credibility of the line selection result, controlling the access of a parallel resistor of the arc suppression coil and the removal of the fault line. According to the method, faults can be eliminated sensitively, frequent tripping caused by instantaneous faults can be avoided, and therefore the operation reliability of a power distribution network system is greatly improved.

The invention discloses an air conditioner refrigerant circulation abnormality determining method and an air conditioner. The method comprises the steps: executing the following processes when the exhaust temperature of a compressor in the air conditioner is greater than an exhaust temperature threshold value: obtaining the difference between the outlet temperature and the inlet temperature of an evaporator in the air conditioner, and enabling the difference to serve as the inlet and outlet temperature difference of the evaporator; when the inlet and outlet temperature difference is larger than an inlet and outlet temperature difference threshold value, adding a standby refrigerant into a refrigerant circulation system of the air conditioner; judging whether the change value of the exhaust temperature is greater than an exhaust temperature change threshold value or not and whether the change value of the inlet and outlet temperature difference is greater than an inlet and outlet temperature difference change threshold value or not; and judging whether the refrigerant circulation abnormity condition is that the system lacks refrigerant or the system is blocked by the refrigerant according to a judgment result. By applying the air conditioner refrigerant circulation abnormity determining method and the air conditioner, the technical problem that in the prior art, the abnormal reason of the refrigerant cannot be further judged, so that effective and timely abnormal fault processing is not facilitated can be solved.