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

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 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 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 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 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 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 relates to an intelligent grid-connected control method and device for a generator. A PLC controller reads the working parameters of the main control system of the driller's console and the working parameters of the generator in the generator integrated controller through a field communication bus; Whether there is a fault to determine whether to switch on the standby unit and cut off the faulty unit; then judge whether the current generator can meet the current power requirements to determine whether it needs to be merged into the standby unit; finally estimate the power requirement at the next moment, and determine whether to switch on or cut off generator set. The invention can predict the power usage and automatically adjust the number of generators connected to the grid, so as to realize the intelligent management of the generators, reduce the energy consumption and the wear degree of the generators; it can also be put into standby at the first time when the working unit fails. unit and cut off the faulty unit, so as to ensure the normal operation of well drilling.

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 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 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 discloses an online-manageable air-cooled screw chiller and a management system, including a box body, the online-manageable air-cooled screw chiller and a management system, built-in pressure and temperature and humidity sensors to detect the operating environment of components, and data collection The detector collects the detection data in time, and the PLC controller integrates and analyzes the post-processing. The working data can be stored locally through the memory. With the support of the wireless network, the data is transmitted to the cloud server for storage through the wireless transmitter. When the data is abnormal or the equipment fails, the near-end alarm, the PLC controller can obtain the cloud data in real time, and then manage and monitor the working conditions of all equipment remotely, and can also predict the service life and failure probability of components, and then spare parts in advance to reduce failures The maintenance time is optimized by optimizing the structure of the evaporator and condenser to ensure sufficient heat exchange, thereby speeding up the cooling process of water, and greatly shortening the time for making cold water.

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.