49results about How to "Troubleshoot quickly" patented technology

The invention, which belongs to the field of photovoltaic power generation, provides a resistance-calculation-based fault diagnosis method for a photovoltaic string. The method comprises: step one, data point sampling is carried out by means of voltage modulation, series and parallel resistors of the string are calculated, and relevant data are uploaded to a data analysis platform; step two, datachanging rules and features of the series and parallel resistors are extracted, a fault type determination and degree assessment model is established, and then comparison and analysis are carried outon the series and parallel resistors of the string, so that fault type determination and degree assessment of the string are carried out; step three, according to a fault diagnosis result, a fault report is issued and the operation and maintenance are guided; and step four, the relevant data are stored into a database and the fault diagnosis model is optimized regularly. Therefore, on-line automatic diagnosis of the fault of the photovoltaic power station string is realized; shutdown during the diagnosis process is avoided; and the influence on the power generation state of the power station is reduced. And subjectivity and instability of the manual inspection are eliminated; the fault is processed quickly, accurately, and efficiently; the labor cost is lowered; and the operation and maintenance efficiency is improved.

The invention provides a moving sieve fault diagnosis method of the coal particle size analysis in three-dimensional modeling and belongs to moving sieve fault diagnosis methods. The moving sieve fault diagnosis method is characterized in that the impact strength to a buffer plate of coal falling from a moving sieve and the takeoff speed and the takeoff height after the coal impacts the buffer plate are detected by an impact sensor and a laser doppler velocity measuring method and utilized as characteristics of the moving sieve fault diagnosis; the three-dimensional modeling analysis is performed on the falling process of the coal to obtain three parameters of the impact strength P to the buffer plate of the coal, the bouncing initial velocity v0 of the coal and the rising displacement h of the coal, the cross-sectional area of the coal is determined by the characteristics of the three signals and compared with the cross-sectional area of a non-fault sieve mesh, and the cross-sectional area and the thickness of the coal are calculated out; the moving sieve fault diagnosis is performed through indirect measurement on the coal particle size. According to the moving sieve fault diagnosis method of the coal particle size analysis in the three-dimensional modeling, the three parameters of the impact strength to the buffer plate of the coal, the bouncing initial velocity of the coal and the rising displacement of the coal are utilized to accurately determine the maximum cross-sectional area and thickness of the coal and accordingly the fault of a sieve plate can be monitored out rapidly, accurately and simply.

The invention discloses an IT equipment fault defect processing system and method. The method comprises the steps: enabling a data support platform to be connected to IT equipment, sensing and obtaining operation data of the IT equipment, extracting the operation data, obtained by the data support platform, of the IT equipment through an intelligent engine module, constructing a fault knowledge base system with a knowledge extraction function according to the extracted operation data, providing auxiliary decision-making service for IT equipment fault rapid first-aid repair service, deploying an intelligent assistant engine at an application front end, extracting and recognizing fault knowledge, carrying out association based on the fault knowledge base system to form one-to-one corresponding fault knowledge maps, and then managing and visually displaying the knowledge maps of the IT equipment faults. According to the invention, the operation data of the IT equipment can be monitored in time, IT equipment fault analysis is carried out based on the knowledge maps, IT equipment maintenance personnel can conveniently and rapidly carry out fault query and fault processing, and the IT equipment fault diagnosis level is effectively improved.

The invention belongs to the technical field of petroleum equipment, relates to a flashboard blowout preventer, in particular to a flashboard blowout preventer with a composite side door. The flashboard blowout preventer with a composite side door comprises a shell with a flashboard built in, and side doors arranged on the two sides of the shell in a matched mode. flashboard shafts connected withthe flashboard penetrate through the side doors, the key points are as follows: the side doors comprise an outer side door and an inner side door, the outer side door is connected and positioned on the shell through bolts, the front end of the inner side door is positioned in an inner cavity of the outer side door through a clamping jaw type connecting device and provided with a cavity matched with the flashboard and a flashboard shaft and an installing hole, an opening and closing rod penetrates through the inner side door and the outer side door to be positioned on the shell, and the inner side door and the outer side door have direct opening and direct closing freedom degrees along the opening and closing rod. A double-layer side door structure is adopted, and the inner side door can beopened and closed independently, so that the side door is compact in overall structure and labor-saving and rapid to open and close.

The invention relates to a partition interconnection operation scheduling method of an urban power grid based on a flexible direct-current power transmission technique. The method comprises the following steps: setting a current moment t, if failures happen or a scheduler manually changes the state of a power grid, updating the moment t according to a moment t' after failure treatment or after manual adjustment, and starting operation scheduling analysis in the next time period [t, t + delta t]; reading the power grid structure at the moment t, reading an AGC system power generation curve, AVCsystem inactive data and a load predicting curve in the time period [t, t + delta t], and storing power plant output of a typical time section, power grid inactive configuration and load predicting data in the time period [t, t + delta t]. By implementing partition interconnection of power supply of the urban power grid by means of a flexible direct-current power transmission system, quick failure treatment of power supply partitions in a failure process and after failures are removed is achieved by fully utilizing high speed responding ability and power adjusting ability of the flexible direct-current power transmission system on the premise of ensuring the power supply safety of the interconnected partitions in a normal mode.

The invention discloses an optical fiber core remote intelligent scheduling exchange system, which comprises an optical fiber core remote butt joint device for realizing butt joint of optical fiber cores; optical testing equipment, used for testing optical fiber performance parameters; a main controller, used for controlling the optical fiber core remote butt joint equipment to perform automatic butt joint of the optical fiber cores and controlling the optical test equipment to test optical fiber performance parameters at the same time; signal transmission equipment, used for receiving the signal sent by the main controller and carrying out remote transmission; and a control center, used for receiving signals remotely transmitted by the signal transmission equipment and realizing remote scheduling of the optical fiber cores and real-time monitoring of optical fiber performance parameters. The problem of automatic exchange of remote optical fiber cores is solved, the optical node link switching efficiency and the optical channel test automation level are improved, the operation and maintenance cost of the optical cable network is reduced, the operation and maintenance work is converted from original extensive fault management to intelligent configuration management, and the construction pace of the intelligent optical cable network is accelerated.

A campus streetlamp wireless intelligent monitoring device is composed of a host monitoring device and a streetlamp branch controller. The streetlamp branch controller has a wireless positioning function, and the communication between the host monitoring device and the streetlamp branch controller is based on Zigbee wireless communication technology. The host monitoring device comprises a microprocessor module and the microprocessor module is connected with a first power supply module, a Zigbee wireless transceiver module, a storage module, a display module, an alarm module and a host computer. The streetlamp branch controller comprises a micro-control module and the micro-control module is connected with a signal conditioning module, a clock module, a second power supply module, the Zigbee wireless transceiver module, a streetlamp control module and a key unit. A brightness acquisition module and a sensor module are connected with the micro-control module through a signal conditioning module. The device can monitor and detect the running states of streetlamps at respective branch control points in real time, can upload alarm information and real-time running information in real time when a fault is generated, and can provide great help for maintenance workers to treat the fault accurately and quickly.

The invention provides a program fault monitoring method and system. The method comprises the following steps of dividing a program into a plurality of functions in advance according to a function modular mode; defining different global monitoring marks for key positions in each function and adding corresponding global monitoring marks to the key positions in each function; in the program operation process, when the execution to the key positions of the function is detected, determining whether the global monitoring mark is obtained or not; if the global monitoring mark is obtained, determining whether fault occurs in the key positions of the function according to the obtained global monitoring mark and the global monitoring mark defined in the key positions of the function; if the global monitoring mark is not obtained, determining that the fault occurs in the key positions of the function. Therefore the method and the system provided by the embodiment of the invention have the advantages that whether the fault occurs in the key positions of the function can be timely and accurately determined, so that the fault handling can be fast performed so as to avoid the serious result due to program fault.

The invention discloses an energy-saving low-radiation glass vertical-type magnetron sputtering production device. The energy-saving low-radiation glass vertical-type magnetron sputtering production device comprises multiple film-coating cavity units connected in series. A process isolation cavity is arranged between each adjacent two of the multiple film-coating cavity units. An isolation valve is arranged between each one of the multiple film-coating cavity units and the process isolation cavity adjacent with the film-coated cavity unit. Each one of the multiple film-coating cavity units comprises a base, a target material frame, a backboard seat and a glass frame. The target material frame and the backboard seat are installed on the base and form a film-coating cavity. The target material frame is provided with a target material cathode. An opening/closing device is arranged between the target material frame and the base. The glass frame is arranged in the film-coating cavity, has a vertical structure and forms an angle of 0-10 degrees with a vertical plane. The opening/closing device is driven by hydraulic pressure or air pressure. The glass frame is provided with a glass conveyer. According to the energy-saving low-radiation glass vertical-type magnetron sputtering production device, in energy-saving low-radiation glass production, glass is arranged vertically so that impurities deposited on the surface of the glass are reduced, the damage produced by impurities on a film is reduced, film adhesion is improved, and arc discharge caused by deposition of impurities on the target material cathode is reduced.

The invention provides an enhanced light photovoltaic module and a manufacturing method, and belongs to the technical field of solar photovoltaics, and the photovoltaic module is mainly and technically characterized in that the photovoltaic module comprises a front packaging layer, a first bonding layer, a front bearing layer, a second bonding layer, a block photovoltaic cell, a third bonding layer, a rear bearing layer, a fourth bonding layer and a rear packaging layer which are sequentially laminated from a light receiving surface; the front bearing layer is a glass fiber net and coated with conversion materials such as carbon quantum dots or inorganic quantum dots, the back faces of the block-shaped photovoltaic cells are coated with temperature sensing materials, the rear bearing layer is a circuit board, and observation holes are formed in the positions corresponding to the temperature sensing materials on the back faces of the photovoltaic cells and used for observing color changes of the temperature sensing materials. An upper electrode plate, a lower electrode plate, a bypass diode, a thermal bimetal switch tube, a switch circuit and a pushing conductive device are arranged in a box body of the junction box, so that the quick maintainability, reliability, testability and safety of the solar photovoltaic module are improved.

The invention discloses a moving sieve fault diagnosis method based on a Weibull analysis model. The method is characterized by collecting impact force of coal falling off from a moving sieve plate on a buffer board through an impact force sensor, and calculating proportion range of the coal falling off from the moving sieve plate in the total amount of a sample when the moving sieve plate is normal, that is, coal size distribution range; and analyzing the coal falling process in the time period t, and according to the total impact force P collected by the impact force sensor, calculating the proportion of the total quantity of the coal falling off from the moving sieve plate within the time period t in the total quantity of the sample, and making a comparison between the proportion and the proportion range obtained when the moving sieve plate is normal to measure the total quantity of the falling-off coal and realize moving sieve fault diagnosis. The method can realize moving sieve fault diagnosis only through the impact force of the coal on the buffer board, can roughly measure damage degree of the moving sieve plate, is simple to realize and high in precision, does not depend on application scenarios and improves economic benefit and intelligent supervision level of a coal preparation plant.

The invention provides a secondary side open-circuit protector circuit adopting windings and used for an intelligent selection current transformer and relates to the technical field of power transmission and distribution switch equipment. The secondary side open-circuit protector circuit is characterized by comprising an open-circuit protector, a measurement unit winding circuit and a protection unit winding circuit, wherein the measurement unit winding circuit and the protection unit winding circuit are connected with the open-circuit protector respectively. The protector circuit has the characteristics of simple structure, convenience in operation, convenience in effective inquiry and maintenance and the like.

The invention discloses a novel multifunctional measuring cabinet, and relates to the field of electrical equipment. The novel multifunctional measuring cabinet comprises a cabinet body and a cabinet door, wherein the cabinet door is hinged with one side of the cabinet body; the cabinet body is internally provided with an open measuring chamber, a control chamber, a closed measuring chamber and a busbar chamber from top to bottom; the open measuring chamber and the closed measuring chamber are respectively and internally provided with an integrated current transformer; the busbar chamber is internally provided with an incoming power line; the integrated current transformers are connected with the incoming power line in series; the control chamber is internally provided with a wireless signal emission device, a temperature sensor, a smoke sensor and a microprocessor; the microprocessor is respectively connected with the wireless signal emission device, the temperature sensor and the smoke sensor; the integrated current transformers are respectively connected with the microprocessor by a lead. The novel multifunctional measuring cabinet realizes the function of measurement error correction by means of the two groups of current transformers, and can transmit measuring information and danger signals in time by using the wireless signal emission device, thus realizing intelligent management, and being worth popularizing.

The invention relates to the technical field of Internet, and particularly provides a VPN service implementation method, which comprises the following steps: s1, deploying a VPN gateway service system; s2, creating a VPN gateway; s3, deleting the VPN gateway; s4, changing the VPM gateway. Compared with the prior art, compared with a traditional hardware VPN mode, the method adopted by the invention is higher in efficiency, simpler in operation mode, more flexible in deployment, quicker in fault processing, convenient to expand, large in specification elasticity, higher in reliability and lower in cost.

The invention discloses a knowledge graph construction algorithm and system based on IT equipment operation and maintenance, equipment and a medium, which perform intelligent analysis on IT equipment service data, identify information such as IT equipment names, IT equipment representations, IT equipment defects and defect processing suggestions, and can effectively extract useful information from mass data, so that the existing business data can be fully utilized. a knowledge graph is constructed according to the mapping relation between the IT equipment representation and the IT equipment defects and the mapping relation between the IT equipment defects and the defect processing suggestions; and based on the knowledge graph, a corresponding defect processing suggestion can be obtained by inputting the IT equipment representation or the IT equipment defects, so that a judgment basis is provided for intelligent fault diagnosis of the IT equipment, the utilization rate of existing service data is greatly improved, IT equipment operation and maintenance personnel can conveniently and quickly carry out fault query and fault processing, the IT equipment fault diagnosis level is effectively improved, and production and operation of a power plant are protected.

The invention discloses an intelligent management method and system for cascaded switching stations of a distribution network. The switching stations are all provided with fault handling terminals, each of which is connected to the optical fiber ring network through an Ethernet switch, and each of the fault processing terminals is provided with a communication server, and all of the communication servers Both are connected to the power distribution master station. The invention introduces the idea of ​​line optical fiber differential protection and directional protection into the fault handling of distribution network, and forms an intelligent management system of distribution network cascaded switching stations according to the power supply relationship. The terminal uses the fast communication between the unit networks, only transmits the fault signal, and negotiates independently, which solves the selectivity of the protection action when the feeder is faulty, and realizes fault isolation at one time.