59results about How to "Failure in time" patented technology

The invention discloses a preventative device maintenance method based on dynamic reliability and belongs to the technical field of petrochemical equipment management. The preventative device maintenance method based on the dynamic reliability comprises the following steps of 1 establishing a device basic database including equipment accounts, historical maintenance and repair data, a fault strength analysis data, operation monitoring data and the like; 2 utilizing basic data to conduct operation time analysis, fault strength analysis and alarm state and operation trend analysis on devices; 3 utilizing results to establish a device reliability level and fault strength incidence matrix, formulate DRBPM data analysis logic, automatically screen preventative maintenance devices and generate preventative maintenance planning reports of the devices; 4 examining, verifying and executing the preventative maintenance planning reports of the devices. The preventative device maintenance method based on the dynamic reliability can be used for dynamic analysis and management of states of petrochemical equipment, facilitate formulation of scientific and effective device maintenance measures and provide guarantee for timely device fault elimination and production continuity reliability and can be widely applied to the technical field of petrochemical equipment management.

The invention discloses an electricity picking device for a high-voltage power transmission line. The electricity picking device comprises a voltage transformator, electricity consumption equipment and a wireless electric energy transmission module, wherein the voltage transformator and the electricity consumption equipment are connected onto the voltage power transmission line, the wireless electric energy transmission module is connected between the e voltage transformator and the electricity consumption equipment, and comprises an AC-DC (alternating current to direct current) converter, and the AC-DC converter is connected with the voltage transformator and is sequentially connected with a high-frequency inverter, an emitting coil, a receiving coil, a rectifying circuit and a DC-DC (direct current to direct current) converter. The electricity picking device has the advantages that electricity is directly picked from the high-voltage power transmission line, and in addition, the electricity is converted into stable direct current electricity to be supplied to the electricity consumption equipment arranged on the voltage power transmission line to be used, wherein the distance between the emitting coil and the receiving coil in the wireless electric energy transmission module is at least 30cm, so that electric isolation being at least 30cm exists between the high-voltage end of the electricity network and the low-voltage end of the electricity consumption equipment, and the safety of the electricity consumption equipment and the reliable operation of the high-voltage power transmission line are ensured.

The invention provides an automatic monitoring system for wireless video of a locomotive pantograph, which comprises a remote network monitoring center device and at least one monitoring point device, wherein, the monitoring point device is connected with the remote network monitoring center device through a wireless network. The automatic monitoring system for the wireless video of the locomotive pantograph can realize real-time monitoring for the pantograph, improves monitoring precision, and simultaneously can also realize remote control function; therefore, the automatic monitoring system is favorable for discovering fault of the pantograph and a contact net in real time.

A brush apparatus for a rotary electric machine has a brush body contacting with a slip ring of a rotor, a spring pressing the brush body on the slip ring, a brush wire connected with the brush body, and a brush terminal having a connecting hole. A ratio of an inner diameter of the hole to an outer diameter of the wire is set to be equal to or higher than 1.3 and to be lower than 1.5. The brush wire is inserted into the hole of the brush terminal, and the brush wire and the terminal are soldered together so as to electrically connect a field winding of the rotor with a rectifier through the brush apparatus.

The invention provides a fault detecting device and method of a stator winding of a micro electromagnetic generator. The fault detecting device consists of a vibration source, a micro generator, switching circuits, a main control panel and a controller. The vibration source provides a vibration with predetermined duration for the micro generator, so that magnetic induction lines produced by a rotor of the micro generator are cut by a stator armature structure of the micro generator, and electrical signals generated by a secondary winding are detected by signal detecting units arranged on the secondary winding of the micro generator. The switching circuits are used for amplification and filtering processing of the detected electrical signals generated by the secondary winding. The main control panel is used for calculating a stator instantaneous power of the micro generator according to the electrical signals processed by the switching circuits and determining the fault characteristic frequency band and the fault characteristic quantity by wavelet decomposition of the stator instantaneous power of the micro generator. And the controller is used for adjusting and controlling the vibration source. The fault detecting device and method are capable of detecting faults without interference with working of the generator, and has the advantage of strong capacity of interference resistance.

The invention discloses a pressure drop and flow uniformity monitoring system based on a PEMFC flow field plate. The system comprises a plurality of monitoring assemblies and a computer system; the flow field plate is provided with a plurality of flow passages; each flow passage is provided with at least two monitoring assemblies; each monitoring assembly is connected with the computer system; themonitoring assemblies are used for monitoring pressures in the flow passages and sending pressure signals to the computer system; and the computer system is used for receiving the pressure signals ofat least two positions in the flow passages, calculating gas flow distribution in the flow passages through pressure drop and flow relations of fluids in the flow passages according to pressure drops, and obtaining flow distribution of gas in the flow passages of the flow field plate. The invention further provides a pressure drop and flow uniformity monitoring method based on the PEMFC flow field plate. The system and the method have the beneficial effects that a pressure sensor is arranged in each flow passage of the flow field plate and is connected with the computer system; in a reactionprocess, an actual pressure in the flow field plate is measured through the pressure sensors, and then analysis and calculation are carried out by the computer system to obtain real distribution condition of the gas in the flow field plate; and the method has an important significance in optimizing the structure of the flow field plate.

The invention provides a vehicle travelling recoding device and method of a battery management system (BMS) for an electric vehicle, and the device and method provided by the invention can be used for timely recoding work status information of a power battery pack. The device comprises a microprocessor, an information storage module, a CAN (controller area network) transceiver, a power module and a clock module. By adopting a good heat-insulating and water-proof measure, the device not only can supply complete data information to the BMS under a normal working condition but also can supply reliable data information to analyze the fault of the electric vehicle when the fault happens; the data is read and written by a CAN, so that information of the battery pack such as voltage, current and the like is periodically stored; after a storage card is fully written, previous record can be replaced by new record; the stored battery pack information can be timely read by virtue of an interface of an upper computer as required; and the device has the functions such as storing, printing, and the like.

The invention discloses a deep learning and image processing fused traffic signal lamp fault detection method. The method comprises the following steps: S1, obtaining an electronic police video streamunder various weather conditions, and decoding the electronic police video stream to obtain a traffic signal lamp image, position information of a traffic signal lamp group in the image, and type information and position information of each signal lamp in the traffic signal lamp group; S2, configuring traffic signal lamp group information and information of each signal lamp in the lamp group; andS3, establishing a traffic signal lamp detection model. According to the invention, the problems of jittering and position deviation of a small-range camera are effectively solved, and the alarm accuracy is improved; and a deep learning technology based on a convolutional neural network is adopted to realize position and state identification of the signal lamp, and an image processing algorithm based on a signal lamp period is adopted to further improve the identification accuracy of the signal lamp.

Provided is a method and device for monitoring electrical failure spark in real time. The device is composed of a power grid current detecting circuit, a relevant harmonic detection circuit, an electromagnetic field detection circuit, a microprocessor, a displayer, a warning circuit and a communication circuit. Outputs of the power grid current detecting circuit, the relevant harmonic detection circuit and the electromagnetic field detection circuit are connected with an input end of the microprocessor, and electrical failure spark is comprehensively judged according to power grid current changes, harmonic analysis and an electromagnetic field signal. A failure occurring position is confirmed through positioning, reliable monitoring of electrical appliance spark is achieved under the condition that influence caused by suddenly increased load of surrounding electrical appliances is avoided, and conditions are created for timely failure elimination. The problem of real-time monitoring and positioning of the electrical failure spark caused by poor contact can be solved, the electrical failure spark can be timely monitored and founded, electrical safety is ensured, and the monitoring of safe environment of a hazardous place is facilitated. The method is simple in structure, reliable in operation and good in monitoring effect.

The invention relates to a system for carrying out broadcasting control on an ATSC (Advanced Television System Committee) signal at a television station end, which comprises an ATSC signal receiving device, a processor, a sound playing device, a storage and a wireless communication device. The processor is connected with the ATSC signal receiving device, the sound playing device, the storage and the wireless communication device; and when the processor carries out analysis to find the abnormal condition in a digital television signal received by the ATSC signal receiving device, the sound playing device is triggered to send a sound alarm signal, the storage is triggered to start to store audio data and video data of a digital television program with the abnormal condition, and the wireless communication device is triggered to send the information of the digital television program with the abnormal condition. By the broadcasting control system, a plurality of paths of digital television programs in the ATSC signal at the television station end can be monitored in real time so as to timely give an alarm and process when the abnormal condition is generated.

The invention provides an electric energy meter online fault detection method and system based on electric power broadband carrier communication, and belongs to the field of electric power broadband carrier meter reading. The online fault detection method comprises the following steps of: finding a neighbor electric energy meter on a power line according to the carrier communication signal strength; establishing a mutual detection relation with the neighbor electric energy meter; acquiring electric energy parameters of the neighbor electric energy meter regularly; and comparing the obtained electric energy parameters of the neighbor electric energy meter with own electric energy parameters, and judging whether the electric energy meter has metering faults or not. The invention also provides a system for realizing the online fault detection method. The method has the advantages that: faults can be found earlier and more timely, maintenance can be conducted in time, power utilization disputes are reduced, the user satisfaction degree is improved, negative errors are found in time, losses of electric power companies can be reduced, and the line loss rate is reduced.

The invention discloses a coal mill coal blockage fault judgment and fault self-healing method, which comprises the following steps of: extracting and calculating working state data of a coal mill, judging whether coal blockage occurs or not through coal blockage fault judgment logic, sending out a sound-light alarm when coal blockage occurs, and automatically processing according to the existing fault self-healing logic. According to the invention, a plurality of working state data can be comprehensively judged, fault reasons can be given, self-healing can be carried out in time when faults occur, time is bought for accident handling, fault expansion is effectively avoided, and the maintenance cost is reduced. The invention also discloses a coal mill coal blockage fault judgment and fault self-healing system, which can diagnose a plurality of working state data of the coal mill according to a preset coal blockage fault judgment logic, judge whether a coal blockage fault occurs or not, return a monitoring interface to the mobile terminal module and receive monitoring information sent by a WEB module in real time; The coal mill coal blockage fault judgment and fault self-healing method is high in automation degree, and greatly improves the alarm accuracy and reliability of the system.

The present invention provides a fault information processing method and device. The method comprises the following steps: obtaining motion feature information of each monitoring target and corresponding feature early warning values and comparing the motion feature information with the feature early warning values; if the motion feature information is larger than or equal to the feature early warning values, and sending fault early warning information, wherein the fault alarm information comprises at least one as follows: a fault reason and a fault processing strategy. In the technical scheme, the motion feature information of each monitoring target is compared to the feature early warning values, and it is determined whether the fault information is sent or not according to the comparison result so as to avoid restarting condition of a server in a cluster in an effective range, reduce unnecessary restarting and ensure the processing efficiency of important business; and moreover, the fault alarm information carries fault reasons when faults happen so as to allow the faults to be timely processed and enhance the system stability.

A computer video monitoring device with a terminal fault early warning function comprises a management platform server, a hand-held terminal and monitoring units arranged at all monitoring sites, wherein each monitoring unit comprises an infrared lamp, a camera and an encryption chip, the camera is connected with the management platform server by the encryption chip, and an analysis module is connected to the management platform server; the infrared lamp is connected with a light sensor; the management platform server is further in remote signal connection with the hand-held terminal with a 3G communication function by a 3G communication module. According to the computer video monitoring device with the terminal fault early warning function, the plurality of cameras connected with the management platform server are used for monitoring all monitoring sites in real time and are in centralized management on the management platform server uniformly, whether a fault occurs to the terminal can be judged timely and accurately, and the automation degree of the whole system and the working efficiency of the security management center are improved.

The invention discloses a coaxial switch controller which is connected between a digital television transmitter management platform and multiple coaxial switches and connected to a host machine and a spare machine through the multiple coaxial switches. The coaxial switch controller comprises a position detection module, indication lamps and an execution module, wherein the position detection module is used for detecting the position status of each coaxial switch; the indication lamps are connected with the position detection module, and according to the detected position status of each coaxial switch, the indication lamp corresponding to the position status of each coaxial switch is displayed; the execution module is connected with the indication lamps, one coaxial switch is controlled to be changed according to a changing control instruction sent by the digital television transmitter management platform, and changing of the corresponding indication lamp is controlled in correspondence with changing of the one coaxial switch. The problems that when a digital television transmitter breaks down in the prior art, faults cannot be visually displayed to users and the digital television transmitter cannot be automatically changed into the spare machine status are solved, so that the coaxial switch controller has the technical advantages that the faults of the digital television transmitter can be conveniently eliminated in time, and the status of the digital television transmitter can be visually displayed to the users.

The invention discloses a method and a device for detecting fault of an internet protocol version 6 (IPv6) tunnel, which are used for solving the problem of low efficiency of fault detection in the prior art. The method comprises the following steps of: receiving an IPv6 message and packaging the IPv6 message into an internet protocol version 4 (IPv4) message by a first edge router in the IPv6 tunnel, then judging whether a firewall of the first edge router intercepts the IPv4 message, if so, determining that the IPv6 tunnel has the fault, generating fault alarm information carrying self identification information, and returning the fault alarm information to a transmitting end which transmits the IPv6 message. The edge router in the embodiment of the invention judges whether the IPv6 tunnel has the fault according to the fact that whether the firewall intercepts the IPv4 message packaged with the IPv6 message and returns the fault alarm information carrying the self identification information when the fault is determined, and the transmitting end can immediately position the fault equipment in the IPv6 tunnel according to the identification information in the fault alarm information, so that the fault detection efficiency is improved.

The invention discloses a converging mechanism on a beverage back-end secondary packaging line and an intelligent control method thereof.The converging mechanism comprises a four-channel separation conveying mechanism, a channel changing mechanism, a double-channel conveying mechanism, a first sensor, a second sensor, a third sensor, an emergency stop switch, an alarm, a controller and a rack; the intelligent control method of the confluence mechanism is realized based on the confluence mechanism and comprises a lane changing control method, a replenishment control method and a card package sudden stop alarm method. Automatic counting and intelligent lane changing can be achieved, confluence distribution is more intelligent and more reasonable, and channel congestion is avoided; the card bag automatically stops and gives an alarm, and faults are removed in time; products are pulled open in a differential mode, counting is convenient, and bag jamming is avoided; the rubber covered roller can reduce collision energy, and product damage caused by collision is avoided; the small-pitch ball mesh belt is used for conveying, the pitch of the mesh belt is small, steering of products can be avoided, the mesh belt is covered with balls, and product scratching in the product stacking process is avoided.

The invention discloses a large heavy-duty open die forging oil press unloading system, and belongs to a large heavy-duty open die forging oil press hydraulic system. The hydraulic system comprises an unloading system with an unloading valve block, an oil cylinder, a hydraulic pump station and an oil conveying pipeline communicated with the hydraulic pump station and the oil cylinder. The hydraulic system is characterized in that the unloading valve block is arranged on the hydraulic pump station or near the hydraulic pump station, an inlet of the unloading valve block is communicated with the oil conveying pipeline, and an outlet of the unloading valve block is communicated with the hydraulic pump station.

The invention provides a method and a device for processing faults of a database, relates to the field of databases and aims at solving the problem that existing memory databases cannot timely monitor and process faults of the databases. The method include: acquiring a first detection value of a preset monitoring event to detection on database running efficiency in the running process of the database; determining a first running state of the database according to the first detection value, and statistically collecting an intermediate temporary table of the database for the first time when the first running state of the database is in a fault state; acquiring a second detection value of the preset monitoring event to detection on database running efficiency after first-time statistical collection is performed on the intermediate temporary table of the database; determining a second running state of the database according to the second detection value, and statistically collecting a whole database table of the database for the second time when the second running state of the database is in a fault state. By the method and device, faults caused by untimely table statistical collection can be timely monitored and processed, so that processing efficiency is improved.