35results about How to "Shorten breakdown repair time" patented technology

The invention discloses a steam turbine generator rotor turn-to-turn short circuit diagnosis device based on a detection coil. The device is characterized by comprising the U-shaped detection coil radially mounted inside a generator in a manner of stretching across a stator iron core section, a high-resistance-value resistor is parallelly connected at an outlet of the U-shaped detection coil, the U-shaped detection coil is composed of high-strength alloy, surrounds the stator iron core section and is contactless with the stator iron core section and a stator winding, and the bottom of the U-shaped detection coil is positioned in an air gap between a stator and a rotor. The invention further discloses a diagnosis method based on the device. By the device and the method, the defects of the prior art can be improved, and the diagnosis level of faults of this kind is raised.

The invention relates to an automatic text classification method for power grid user fault repair work orders. The automatic text classification method comprises the steps: firstly, conducting word segmentation on data of a text data set of a power grid user fault repair work order, filtering stop words and training word vectors, wherein a Word2vec method is adopted to train word vectors and Word2vec learns distributed expression of the text, vectorizing the text, and expressing the text through the word vectors; and loading the trained word vectors into a convolutional neural network for feature extraction and model training, and finally outputting probability distribution on each label to obtain a classification result. Compared with a traditional text classification method, the automatic text classification method obviously improves the accuracy, and greatly shortens the classification time. Meanwhile, the automatic text classification method can help the power grid department morereasonably configure various emergency maintenance resources, thus greatly shortening the fault maintenance time, and facilitating the improvement of the service quality of the power grid department.

The invention relates to a meteorological device maintenance and repair management system comprising a province-level system and a national-level system which are connected through a meteorological data transmission channel. The province-level system acquires maintenance and repair information of various meteorological devices, classifies the maintenance and repair information according to a preset standard, stores the maintenance and repair information in a province-level maintenance and repair database, and transmits the maintenance and repair information to a national-level maintenance and repair database in order that the maintenance and repair information is shared by the province-level system and the national-level system. After receiving a query instruction, according to the maintenance and repair information and a preset processing program, the province-level system and the national-level system may generate a statistical report in a preset format reflecting the maintenance and repair condition of the meteorological devices, or an analysis and evaluation report reflecting the availability and / or maintainability of the meteorological devices and outputs and displays the statistical report or the analysis and evaluation report. The meteorological device maintenance and repair management system collects and processes the maintenance and repair information of the nationwide meteorological devices in real time, analyzes and evaluates the maintenance conditions, the maintainability, and the availability of the meteorological devices, and shortens device fault repair time.

The invention discloses a multifunctional unmanned intelligent roadway excavating equipment system based on a trinocular vision recognition technology and a control method thereof. The multifunctionalunmanned intelligent roadway excavating equipment system comprises a cab, a conveying mechanism and a travelling moving unit. The multifunctional unmanned intelligent roadway excavating equipment system is characterized by further comprising a roadway excavating equipment arm operation control unit, a trinocular vision recognition system, a robot control system, a wireless data transmission system, a state parameter monitoring system, an upper computer control system, a sound-light alarm system and a state information display unit. According to the technical scheme, automatic travelling and positioning of multifunctional excavating equipment can be achieved, remote operation can be achieved through wireless communication, operators do not need to enter a site, the difficult problems of excavating and loading under the hazardous environment are solved, meanwhile, the environment in a roadway can also be subjected to live-action monitoring, site image data are transmitted to a ground monitoring room accurately in real time, and the safety of personnel is ensured.

The invention discloses a remote diagnostic instrument for a pure electric vehicle (PEV). The remote diagnostic instrument comprises a bus interface module, a processing module, a positioning module, a mobile communication module, a voice interface module and a power module, wherein the bus interface module is connected with a vehicle-mounted bus and is used for acquiring bus information; the processing module is connected with the bus interface module and is used for receiving and processing the bus information transmitted by the bus interface module; the positioning module is connected with the processing module and is used for determining position of the PEV; the mobile communication module is connected with the processing module and is used for carrying out communication between the processing module and a remote service platform; the voice interface module is connected with the processing module and can be externally connected with an audio input-output device; and the power module is used for providing a power source to the modules. By adopting the remote diagnostic instrument, technical faults of the PEV can be remotely diagnosed and immediately maintained, and meanwhile electric quantity of a battery can be monitored and the nearest charging station can be quickly found so as to timely charge the battery in case of power shortage of the battery.

The invention discloses an improved roadway boring machine. The upper portion of a rack is connected with a hydraulic motor and a cantilever, the outer side of the cantilever is connected with a cutting head, a nozzle is arranged on the outside of the cutting head, and a water injection pipe is further arranged inside the cantilever; a first through hole is formed between the cantilever and the water injection pipe, the hydraulic motor is connected with a water injection ring through a support frame, and the water injection ring is connected with a water inlet pipe through a water pipe joint; and the outside of the bearings are sleeved with sealing rings, each sealing ring comprises a first rubber ring and two second rubber rings, and the two second rubber rings are respectively located on both sides of each bearing, first springs are arranged between the second rubber rings and the first rubber rings, the two sides of the second rubber rings and the first rubber rings are connected through connection rigs, annular cavities are further formed inside the first rubber rings, two second through holes are formed inside the annular cavities, and the outside of two first rubber rings are sleeved with sleeve tubes. The improved roadway boring machine can improve the deficiencies of the prior art, and a spray structure of the improved roadway boring machine has a better sealing and a cooling effect.

The invention provides an elbow-shaped cable terminal extension rod, and belongs to the field of electric power equipment. The elbow-shaped cable terminal extension rod comprises an elbow-shaped sheath, a cable connecting cavity, a test connecting cavity and a connecting rod, wherein the cable connecting cavity is formed in the elbow-shaped sheath, has an opening towards one end of the elbow-shaped sheath, and is used for accommodating a cable; the test connecting cavity is formed in the elbow-shaped sheath, has an opening towards the other end of the elbow-shaped sheath, and is connected withthe cable connecting cavity; the connecting rod is arranged in the test connecting cavity, the inner end of the connecting rod is connected with the cable, and the outer end of the connecting rod extends out of the test connecting cavity; the two ends of the connecting rod are both circular arc-shaped; the connecting rod comprises an inner section, a transitional section and an outer section; theinner section and the outer section are connected through the transitional section; the inner section is fixedly connected with a cable terminal; and the outer section extends out of the test connecting cavity. By enabling the cable terminal nose part in the elbow-shaped sheath to be led out, connection of a test wiring clamp can be performed conveniently, so that the test wiring clamp can be connected even if the elbow-shaped sheath is not removed; and meanwhile, the elbow-shaped cable terminal extension rod is simple in structure, reasonable in design, low in cost, simple in operation, time-saving and labor-saving, and capable of shortening fault maintenance time and improving working efficiency.

The invention discloses a computer hardware fault detection system, comprising a fault detection system, wherein the fault detection system is electrically connected with a contrastive analysis system, a data comparison module is arranged in the contrastive analysis system, and the contrastive analysis system is electrically connected with an alarm display system. According to the computer hardware fault detection system, the fault detection system detects computer hardware information and transmits the detected information to the contrastive analysis system, and the contrastive analysis system processes and analyzes the received information, judges whether computer hardware has a fault or not, judges the specific position of the fault and transmits the result to the alarm display system, so that maintenance personnel can quickly determine the position of the fault and the fault maintenance time can be effectively reduced.

The invention discloses an auxiliary equipment maintenance system and method, and the system comprises an emergency maintenance management module, a maintenance personnel management module, a fault preprocessing module, a spare part online management module, and a maintenance process analysis and evaluation module. The method comprises the following steps of emergency maintenance management, maintenance personnel management, fault preprocessing, spare part online management, maintenance process analysis and evaluation and the like, accurate matching of faults and maintenance personnel is achieved through a fault preprocessing module, and effective utilization rate of maintenance personnel is improved. Through the fault preprocessing module, possible fault causes are predicted through the fault tree structure, the fault maintenance time is shortened, and the maintenance efficiency is improved. The fault tree model in the fault preprocessing module is upgraded and perfected through the maintenance process analysis and evaluation module, and the accuracy of fault reason judgment of the fault preprocessing module is continuously improved.

An axle counting system comprises a wheel sensor and an axle counting arithmetic unit. The wheel sensor is unilaterally installed on a steel rail, the top surface of the wheel sensor is lower than that of the steel rail, the axle counting arithmetic unit receives and operates signals, judges whether a rail section is occupied and outputs the signals. A damping board is further arranged between the wheel sensor and the steel rail. The axle counting arithmetic unit is provided with an amplifying unit, an axle counting unit and an output unit, wherein the amplifying unit processes the received signals and outputs the signals to the axle counting unit and the output unit, the axle counting unit recognizes the train traveling direction, calculates the number of wheels and transmits the results to the output unit, and the output unit outputs rail information. The wheel sensor is unilaterally installed on the steel rail, and the top surface of the wheel sensor is lower than that of the steel rail, so that the wheel sensor only has effect on rims of the train wheels lower than the top surface of the steel rail, and interference cannot be generated easily. The damping plate is further arranged between the sensor and the steel rail, when the wheel sensor is loose, alarm information can be emitted to remind maintain staff to repair timely, and operation safety is improved.

The invention provides outdoor state monitoring equipment and system of a frequency shift pulse track circuit. The equipment comprises a choke transformer, an acquisition sensor and an acquisition extension machine which are arranged in the same box body. The acquisition sensor acquires the outdoor state of the frequency shift pulse track circuit to obtain an acquisition signal, and sends the acquisition signal to an acquisition extension machine, the acquisition extension machine processes the acquisition signal to obtain communication data, and the communication data are sent to a collectiondevice through a cable in a power carrier communication mode. According to the scheme, the acquisition sensor is arranged on a preset acquisition point to acquire the data of outdoor equipment of thefrequency shift pulse track circuit, and the acquired data are processed and transmitted through the acquisition extension machine, so that the operation state of the outdoor equipment of the frequency shift pulse track circuit can be known in real time, the sudden failure point can be located in time, the influence range of the failure can be prevented from being increased, the failure maintenance time can be shortened, and the maintenance cost is reduced.

The invention discloses an air cooling screw water chilling machine capable of being managed online and a management system. The machine comprises a box body. According to the air cooling screw waterchilling machine capable of being managed online and the management system, a built-in pressure sensor and a temperature and humidity sensor are used for detecting the operation environment of parts,a data acquisition device is used for collecting the detection data in time, the data is integrated and analyzed by a PLC and then is processed, the working data can be stored locally through a memorizer, under the support of a wireless network, the data is transmitted to a cloud server for storage through a wireless transmitter, an alarm is arranged to give an alarm when the data is abnormal or the equipment breaks down, the PLC can obtain cloud data in real time so as to remote manage and monitor the working conditions of all equipment, the service life and the fault occurrence probability of the assembly can be estimated so that the spare part can be prepared in advance, the fault maintenance time is shortened, the structure of an evaporator and a condenser is optimized, sufficient heatexchange is guaranteed, the refrigeration process of water is accelerated, and the cold water preparation time is greatly shortened.

The invention relates to the technical field of electric power metering, and relates to a centralized power marketing metering device and a management system thereof; the centralized power marketing metering device comprises a metering box body with an opening in the front side and an electric power sampling unit; a main control unit, a positioning unit, a communication unit, a storage unit and asampling comparison unit, a display unit and an electricity larceny detection unit are arranged in the metering box body, wherein the electric power sampling unit is connected with the sampling comparison unit, the electricity larceny comparison unit and the main control unit separately; and the main control unit is connected with the positioning unit, the communication unit, the storage unit, theelectricity larceny detection unit, the sampling comparison unit and the display unit separately. According to the device, a plurality of users share one metering device in a centralized manner, andsignals in the electric circuits of the users are collected in real time through the electric power sampling unit, and whether the voltage current is too high or electricity larceny leakage occurs ornot can be judged in real time through comparison; and if the fault occurs, an alarm can be given in real time, and the working personnel can accurately and quickly determine the fault occurrence position through the positioning data.

The invention relates to a filling machine and a last bevel heater protecting method thereof. The filling machine comprises a PLC, an electromagnetic valve, a last bevel heater, a temperature sensor, a solid-state relay and a normally-open pressure switch; the electromagnetic valve is used for controlling compressed air to be conveyed to the last bevel heater; the temperature sensor is used for detecting temperature of the last bevel heater; the PLC is used for outputting a work voltage according to conditions of the temperature detected by the temperature sensor; the normally-open pressure switch is used for being switched off according to increasing conditions of the compressed air released by the electromagnetic valve, and the work voltage output by the PLC is transmitted to the relay; the relay is used for controlling the last bevel heater to work according to the work voltage output by the PLC; the last bevel heater is used for heating the compressed air by means of the work voltage output by the PLC and spraying the compressed air through a lug wing seal nozzle for work.

The invention, which relates to the technical field of solar cell production, discloses a solar cell production line track transfer and patching device. The device comprises a workbench, a rotary track transfer mechanism, a stacking temporary storage mechanism and a patching mechanism. The rotary track transfer mechanism comprises a cell piece conveying track 3, a track transfer servo motor 10, atrack transfer linear module 9, a rotary stepping motor 8 and a track transfer sucker 7; the stacking temporary storage mechanism is arranged above the conveying track; the stacking temporary storagemechanism comprises a stacking servo motor 6, a stacking sucker 4, a stacking linear module 5, a stacking box 2 and a stacking track 1. The patching mechanism comprises a jacking shaft 18, a transverse moving shaft 15, a patching material box 13, a patching box air knife 14, a patching sucker 11 and a patching sucker air cylinder 12. The device further comprises a correcting mechanism. The correcting mechanism 17 comprises a correcting cross beam 171, a correcting air cylinder 172, an air cylinder piston 173 and a correcting clamping plate 174. The fragment rate is reduced, the fault maintenance time of equipment is shortened, and the yield of finished products is increased.

The invention relates to a communication detection method, in particular to a CAN bus communication detection method of an aluminum electrolytic tank control system for judging fault points of the CAN bus communication of the aluminum electrolytic tank control system. The detection method of the present invention comprises the following steps: 1) writing the CAN bus communication detection program code into the memory of the detector; 2) incorporating the detector into the communication line; 3) judging the CAN bus communication state; 4) judging the CAN bus communication status is displayed through light emitting diode D1. The method of the present invention provides necessary detection means for CAN bus communication failures occurring in the harsh environment of strong magnetic field, high temperature and high dust concentration, and effectively solves the difficulty of judging and processing CAN bus communication failures of the slot control machine series on the aluminum electrolysis production site Big question. The invention is applicable to YFC-99 aluminum electrolysis intelligent fuzzy control machine, and also applicable to any control system with CAN bus as communication mode.

The invention belongs to the temperature detection field of an electric transformer, and particularly discloses a Pt100 signal conversion device for a thunder-strike resisting electric transformer. The signal conversion device comprises a circuit for being connected with a Pt100 temperature sensor in the electric transformer and is characterized in that a thunder protective circuit and a Pt100 temperature acquisition circuit are mounted on the circuit, the Pt100 temperature acquisition circuit and a non-linear compensation circuit are mutually communicated, the non-linear compensation circuit is communicated with a 4-20mA current generating circuit, an AC-DC (alternating current-direct current) power supply circuit is respectively communicated with the non-linear compensation circuit and the 4-20mA current generating circuit. The device is strong in interference resistance, multiple thunder protective measures are adopted inside the device, so that sensing thunder waves from a signal line and a power supply line can be inhibited, and the function of thunder impact self-recovery is provided.

The present invention provides a line fault monitoring system for an smart power cell, including: a current sensor configured to monitor a current of a power line of each user in the smart power cell;a voltage sensor configured to monitor a voltage of a power line of each user in the smart power cell; a controller configured to receive current information monitored by the current sensor and a voltage signal monitored by the voltage sensor; a wireless communication module configured to transmit alarm information to an upper-level control center; and a switch module configured to control connection of electricity of the wireless communication module. The voltage sensor and the current sensor are connected to the controller, and the controller is connected to the wireless communication module. In addition, there is a power supply module configured to supply power, the power supply module is connected to a power supply module by using the switch module, and the switch module is connectedto the controller. The system solves a final blind area from a substation to a user, implements whole-process and timely monitoring and discovery of fault, reduces a fault repair time, and solves a problem that power supply personnel is insufficient.

The invention provides a hydraulic system, a control method thereof and an excavator, and relates to the technical field of hydraulics. The hydraulic system comprises an oil storage device, a detection device and a filtering device, wherein the detection device and the filtering device are connected with each other. The detection device is connected with the oil storage device and used for detecting the cleanliness of oil liquid in the oil storage device. The filtering device communicates with the oil storage device through an oil outlet way and an oil return way to form a circulation oil wayand is used for filtering the oil liquid in the oil storage device. Under the condition that the detection device detects the cleanliness of the oil liquid in the oil storage device in real time, thepurpose of cleaning and filtering the non-standard oil liquid is completed through the operation of operators or autonomous judgment of the filtering device, that is, the source, namely the oil storage device, of the whole hydraulic system is cleaned, so that the situation that an existing hydraulic device adopts a fixed-cycle maintenance mode, maintenance is inadequate and accordingly the deviceis likely to break down or the maintenance cost is high due to excessive maintenance is avoided, the maintenance time of the device is effectively shortened, and the operation efficiency of the deviceis improved.

The invention discloses a proton-heavy ion equipment fault repair and reporting system, and relates to the technical field of fault reporting systems. The system comprises a fault reporting center, a fault repair and repair receiving user and an intelligent mobile phone terminal user, wherein the fault reporting center communicates with the fault repair and repair receiving user through an internal wireless network; the fault reporting center comprises a computer platform terminal, an external network link server and the Internet; the fault reporting center is linked to the Internet through the external network link server, and performs fault information pushing with a medical related department of the intelligent mobile phone terminal user; the fault reporting center is the server, the computer platform terminal or a data statistical summarization center; and the intelligent mobile phone terminal user is a clinical related department or an administrative department. According to the system, information mutual communication of personnel playing roles of equipment operation maintenance and management can be realized, so that comprehensive fault reason analysis and query during fault occurrence are facilitated and the fault repair time is shortened.

The invention provides a tooling gauge for quick, accurate and indexing installation of cigarette separation drum cigarette bearing grooves, which comprises a positioning slider and a measuring rod, wherein two sides of the same plane of the positioning slider are provided with positioning holes, the other side opposite to the above plane is provided with a convex structure, the convex structure is provided with a positioning hole for fixing the measuring rod, and the measuring rod is tightly matched with the arc surface of inner and outer rows of cigarette bearing grooves on the separation drum; and the positioning slider users the two positioning holes to be matched with any two adjacent outer circle cylindrical sliding shafts on the separation drum, thereby realizing accurate positioning of the positioning slider on the separation drum. The cigarette separation drum assembly precision is effectively improved, the device operation stability is improved, the measurement adjustment efficiency in the assembly process can also be significantly improved, the fault repair time is greatly reduced, and the economic benefits are increased.

The invention relates to the technical field of nuclear power station industrial safety, and especially relates to a nuclear power station SEC system fault detection method and device, equipment and a storage medium. The method comprises the steps that a heat exchange trunk obtains cooling water from a circulating water system through an SEC pump, the cooling water is filtered by a filter and enters a heat exchanger for heat exchange, and finally the cooling water is discharged from the heat exchange trunk, wherein the heat exchange trunk is provided with a pressure detection branch used for detecting the pressure of the heat exchange trunk; when the SEC system is subjected to fault detection, a first isolation valve is opened, a second isolation valve is closed, a pressure switch pressure release valve is opened, and a pressure signal of a pressure switch is obtained; when the pressure signal is lower than a preset threshold value, whether the SEC system generates a first alarm signal or not is judged, and whether the SEC system starts a second SEC pump or not is judged; and if the SEC system generates the first alarm signal and the SEC system starts the second SEC pump, it is determined that the SEC system is in a normal response state. The fault maintenance time can be saved, the random I0 consumption ratio is reduced, and unavailable events of the nuclear safety equipment are reduced.