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34results about How to "Real-time grasp of operating status" patented technology

Dynamic capacity increasing method for oil-immersed transformer

The invention relates to a dynamic capacity increasing method for an oil-immersed transformer, and belongs to the field of transformers. The method includes the steps that heat conduction process in the transformer is simplified into a circuit model; winding hot-spot temperature, top oil temperature, average oil temperature, average winding temperature of the transformer under the current load condition are calculated; according to the limit that the winding hot-spot temperature does not exceed 140 DEG C, whether temperature in the transformer will exceed the limit temperature or not under the current load and environment conditions is calculated, whether a temperature limit value is reached or not if long-term emergency loads or short-term emergency loads occur at the moment is calculated, and if the temperature in the transformer possibly exceeds the limit value of the short-term emergency loads, the time for reaching the limit value and the finally reached steady state temperature are calculated to serve as alarm signals; if it is monitored that the temperature will exceed the standard within t minutes, an early-warning signal is sent out, certain time delay is set, and if the loads are not reduced within the set time delay, a cooling fan of the transformer is turned on. Long-term continuous operation of cooling equipment can be avoided, and operation life of the cooling equipment is prolonged.
Owner:SHANGHAI MUNICIPAL ELECTRIC POWER CO +1

BIM-based digital twin smart machine room management method and device, equipment and medium

The invention discloses a BIM-based digital twin smart machine room management method and device, computer equipment and a storage medium, and the method comprises the steps: obtaining the operation data of a to-be-monitored object in real time, storing the operation data in an operation and maintenance database, and updating an integrated BIM model of a to-be-monitored scene; judging whether theto-be-monitored object is in a fault state or not according to the operation data: if the to-be-monitored object is in the fault state, displaying an alarm identifier for the to-be-monitored object inthe fault state on the integrated BIM model, and taking the to-be-monitored object corresponding to the alarm identifier as a to-be-processed object; displaying the alarm information corresponding tothe to-be-processed object, performing fault diagnosis on the to-be-processed object, generating a maintenance work order, and obtaining a fault diagnosis result and the maintenance work order; according to the fault diagnosis result, recommending a fault solution corresponding to the to-be-processed object by utilizing a preset neural network model. According to the invention, a user can maintain the data center efficiently, and the fault processing efficiency is improved.
Owner:CHINA ENERGY ENG GRP GUANGDONG ELECTRIC POWER DESIGN INST CO LTD

Unattended reservoir water supply and management system

The invention discloses an unattended reservoir water supply and management system which comprises a main control center and sub control centers which are in a main control level, and a reservoir outlet management station, a reservoir emptying watergate room and a reservoir outlet site monitoring station which are in a site unit control level; all the sub control centers are respectively connected to the main control center through fiber-optic communication; the reservoir outlet management station is in communication connected with the corresponding sub control centers through fibers; the reservoir emptying watergate room is in communication connection with the reservoir outlet management station through the fibers, and is in communication connection with the reservoir outlet site monitoring station through a recommend standard (RS) 485 interface; and the reservoir outlet site monitoring station is in communication connection with the reservoir outlet management station through an RS 485 interface, a coaxial cable and a data line. According to the system, the defects of large labor intensity, high cost, low working efficiency and the like of the prior art can be overcome, so the advantages of small labor intensity, low cost and high working efficiency are realized.
Owner:XINJIANG IRTYSH RIVER BASIN DEV ENG CONSTR ADMINISTRATION

Intelligent-type shield tunneling machine main bearing provided with physical condition monitoring

InactiveCN105041885AImprove stability and securityReduce repair costs and maintenance timeBearing assemblyAutomotive engineeringShield machine
The invention relates to an intelligent-type shield tunneling machine main bearing provided with physical condition monitoring. The intelligent-type shield tunneling machine main bearing comprises a shield tunneling machine main bearing mechanical structure, a wireless data acquisition terminal, and a background monitoring terminal; the shield tunneling machine main bearing mechanical structure is used for arranging a sensor unit in the shield tunneling machine main bearing so as to realize collection and transmission of physical condition parameters of the intelligent-type shield tunneling machine main bearing under running states; the intelligent-type shield tunneling machine main bearing is provided with a bearing inner ring, a bearing outer ring, a rolling element, and a holder. The intelligent-type shield tunneling machine main bearing is provided with the mechanical structure, and a wireless transmission-based physical condition data physical condition intelligent monitoring system is provided for collection and transmission of parameters such as temperature increasing value, vibration value, and wearing capacity of the intelligent-type shield tunneling machine main bearing, so that monitoring on the main bearing physical conditions is realized under running states without disassembling shield tunneling machine host equipment, running states of the intelligent-type shield tunneling machine main bearing can be obtained in real time, fault locating can be realized in time, failure cause can be identified in time, equipment safety and stability are improved greatly, and maintenance cost and maintenance time are reduced.
Owner:HENAN UNIV OF SCI & TECH

Wireless temperature measurement system for heat storage element in rotor of rotary air preheater

The invention discloses a wireless temperature measurement system for a heat storage element in a rotor of a rotary air preheater and belongs to the field of temperature measurement of rotary air preheaters. The system is composed of a temperature measuring device, a sending device, a relay device, a receiving device and an upper computer, wherein the temperature measuring device is a temperature sensor; the sending device is composed of an A / D conversion chip, a processor module A, a communication module A and a power supply module A; the relay device is composed of a processor module B, a communication module B and a power supply module B; and the receiving device comprises a communication module C, a display module and a processor module C; and the upper computer is a host of a power plant control system. The system is used for measuring the temperature of the heat storage element in the rotary air preheater rotor in the power plant adjusting and controlling process, a problem that the internal temperature of the rotary air preheater rotor is difficult to measure is solved through the wireless temperature measuring technology, meanwhile, the cost is reduced by utilizing a power plant preset circuit, and stable operation of the air preheater and a power plant boiler unit is guaranteed.
Owner:XI AN JIAOTONG UNIV +1

Intelligent three-color lamp

The intelligent three-color lamp comprises a stable base, a wire bunching groove is formed in the lower end of the stable base, a protective lampshade is connected to the upper end of the stable base, a column connecting table is arranged in the protective lampshade and fixedly connected to the upper end of the stable base, and a center penetrating column is fixedly connected to the upper end of the column connecting table; a timing controller is arranged on the outer side of the column connecting table in a surrounding mode and connected with three rotating motors, and the three rotating motors are rotationally connected with a lower rotating gear, a middle rotating gear and an upper rotating gear through output shafts correspondingly. The lower rotating gear, the middle rotating gear and the upper rotating gear are sequentially arranged around the outer side of the center penetrating column from bottom to top. According to the invention, the utilization rate, the starting rate, the shutdown rate, the shutdown times and the shutdown time of each device can be inquired in real time and in history through the cloud system. By analyzing machine operation data, the equipment operation efficiency can be averagely improved by 20%, and reason analysis is carried out on abnormal shutdown of the equipment.
Owner:南京合信自动化有限公司

Hybrid aggregation graphic display device for optimizing topological performance structure

The invention provides a hybrid aggregation graphic display device for optimizing a topological performance structure, and relates to the technical field of network topology visualization. The hybridaggregation graphic display device for optimizing the topological performance structure comprises a resource full-path exploration medium, a node aggregation generation system, an image service box and graphic display equipment, wherein the resource full-path exploration medium serves as a functional end at the foremost end of the hybrid aggregation graphic display device and is the basis of the hybrid aggregation graphic display device, and is applied to various heterogeneous, mixed and agile IT architectures. According to the device, the network topological graph is made for visual presentation, resource equipment nodes are found automatically and accurately, due to the adoption of the H5 technology, the page loading speed is higher, the topological graph performance is high, resource occupation is lower, the display effect is better, meanwhile, plug-ins do not need to be installed like Flash to be used, the H5 technology can be used only through browser support, is simple, convenient. A B/S mechanism can be adopted, a client does not need to be installed, and the system is agent-free, safe, convenient, stable, easy to use and high in practicability.
Owner:重庆远臻科技有限公司

Remote receiver and method of multipoint positioning system based on cpci architecture

The invention belongs to the technical field of civil aviation, and provides a remote receiver and method of a multi-point positioning system based on a CPCI architecture. The remote receiver includes a radio frequency signal receiving card, a signal processing card, a main control card, a clock card, a monitoring card and a power module card. The radio frequency signal receiving card, the signal processing card and the main control card are connected in sequence, and the clock card is respectively connected to the radio frequency signal The receiving card is connected with the signal processing card, the monitoring card is connected with the RF signal receiving card, the signal processing card and the clock card respectively through the PCI bus, the power module card is connected with the RF signal receiving card, the signal processing card and the main control card respectively, the signal processing card It is connected with the main control card through the PCI bus. The remote receiver and method of the multi-point positioning system based on the CPCI architecture of the present invention can improve the expansion performance, data processing efficiency and reliability performance of the remote receiver, and avoid external signal interference.
Owner:THE SECOND RES INST OF CIVIL AVIATION ADMINISTRATION OF CHINA

DC magnetic bias current suppression device for transformer high-voltage winding

The invention provides a DC magnetic bias current suppression device for a transformer high-voltage winding. The suppression device comprises a bypass protection device, a measuring device and a control device, and is characterized in that the bypass protection device comprises a clearance and a bypass switch, and the clearance and the bypass switch are connected in parallel and then connected to a transformer neutral point in series; the measuring device is used for measuring voltage at both ends of the bypass switch and current flowing through the bypass switch; the control device compares the voltage and the current, which are measured by the measuring device, with preset operation voltage and preset operation current respectively; when the current exceeds the operation current, the bypass switch is disconnected; and when the voltage is lower than the operation voltage, the bypass switch is closed. The suppression device provided by the invention can effectively suppress influences imposed on a transformer with the transformer neutral point being directly grounded by DC grounding electrode earth current. The suppression device is simple in structure, small in size, convenient to install and less in capital investment, does not change a grounding mode when the transformer is in normal operation, and has no influence for line protection.
Owner:ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD +1

Silica gel integrated high-luminous-efficiency intelligent street lamp module and manufacturing process thereof

The invention relates to the technical field of intelligent lamps, and discloses a silica gel integrated high-luminous-efficiency intelligent street lamp module and a manufacturing process thereof. The silica gel integrated high-lighting-effect intelligent street lamp module comprises an aluminum plate, a control chip plate and a heat dissipation plate, wherein the control chip plate is located at the top of the aluminum plate and fixedly connected with the aluminum plate, the heat dissipation plate is located at the top of the control chip plate, the heat dissipation plate is fixedly connected with the aluminum plate through bolts, the outer wall of the aluminum plate is provided with a conductive layer, the surface of the aluminum plate is provided with a circuit, and thebottom of the aluminum plate is fixedly connected with evenly-distributed LED lamp beads and elliptical lenses. When the LED lamp beads operate abnormally, the abnormal LED lamp beads can be informed in time through the wireless connection server to management personnel, so that the management personnel can find the abnormal LED lamp beads in time and repair and replace the abnormal LED lamp beads conveniently; and the operation condition of the street lamp module can be conveniently mastered in real time, management is more convenient, the one-time transmittance of light is improved, and the overall light transmittance of the street lamp module is improved.
Owner:上海畅鸣电子科技发展有限公司
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