52results about How to "Grasp the running status in time" patented technology

A method for predicting the concentration of aluminum oxide in an electrobath relates to a real-time control for the concentration of aluminum oxide by using a bath control machine real-time measuring and displaying the concentration of aluminum oxide in an electrobath. The method is characterized in that: the real-time predicting process is using the bath control system and the voltage of the real-time detecting electrobath and system current and controlling the discharging interval, the time and the discharging capacity parameter to build an electrobath operating parameter and a relation mode of the aluminum oxide concentration and then predicting the concentration of aluminum oxide in an electrobath and displaying the real-time aluminum oxide concentration on the bath control machine. The method of this invention is suitable for the intermediate point type discharging pre-bake aluminum electrobath of the 70kA-350kA series. This method can control the prediction of the concentration of aluminum oxide in aluminum and it is beneficial to the production technique and operating stuff to timely know the operating state of the electrobath which is a benefit for the management and control for the production of electrolytic aluminum.

The invention discloses an intelligent decision pre-warning system for sweeping of photovoltaic power station components. The system comprises a parameter alarm sub-system, a data center sub-system and a pre-warning decision sub-system. According to the system, real-time key information is obtained from power station monitoring backgrounds, local meteorological stations and the like, inference and analysis are performed on various data, and decision pre-warning schemes with the power station maximum economic benefits as the objective are output. The decision pre-warning schemes output by the system can be fed back to the power station monitoring backgrounds and can also be transmitted to maintenance staff and owner mobile terminals, and accordingly, the system is applicable to distributive photovoltaic power stations and large ground photovoltaic power stations to enable maintenance staff and owners to get hold of power station operation states and sweeping decision pre-warning schemes timely.

The invention discloses an electromechanical equipment maintenance and management method based on BIM technology. The method includes steps of step 1 constructing a three-dimensional model; step 2 coding the information of the electromechanical equipment; step 3 realizing the information integration and communication of a monitoring system and a BIM system of the electromechanical equipment via a communication module; step 4 establishing an equipment maintenance and management database; step 5 establishing a fault analysis database; step 6 performing equipment simulation maintenance and repair; and step 7 setting a system management module. According to the electromechanical equipment maintenance and management method based on BIM technology, the electromechanical equipment information model is established and is aided by a real-time monitoring system, the running state of the electromechanical equipment can be timely known, the faults can be timely found and a solution scheme is provided; and meanwhile, the daily maintenance of the electromechanical equipment can be monitored, the periodical maintenance system is established, and the maintenance and management of a large number of complex electromechanical equipment of a building can be efficiently realized.

The invention provides a fault diagnosis method of a multi-water-pump water supply system, and belongs to the technical field of water supply systems. According to the fault diagnosis method of the multi-water-pump water supply system, each of monitoring sensors separately collects and outputs water pump operation information associated with water pumps; a fault diagnosis module receives the waterpump operation information and analyzes and processes the water pump operation information according to a preset fault analysis program to acquire and output fault information associated with the water pumps; and an Internet of Things communication module receives the water pump operation information and the fault information, and sends the water pump operation information and the fault information to a control end. The fault diagnosis method of the multi-water-pump water supply system has the beneficial effects that the multi-water-pump water supply system integrates the Internet of Things communication module to realize the communication function, the state and fault information of a water supply device can be continuously sent to the control end, the running state and the fault of thewater pump can be grasped in time, reaction to the fault is made in time, downtime is shortened, and the maintenance interval is shortened.

The invention relates to a precision monitoring system for time synchronization of power equipment, which comprises a monitoring center formed by a central control system and a network management system and a time measuring device arranged in a substation, and is characterized in that the time measuring device is arranged in a substation and connected with a master clock module, an extended clock module and a time-served module in the substation; the time measuring device acquires a time signal of the master clock module in the substation, converts the time signal into a PTP (Precision Time Protocol) packet packaged by E1, and transmits the PTP packet to the central control system through an E1 channel of an inter-station synchronization digital system. The scheme provided by the invention can master the output precision of a time synchronization device timely. The precision monitoring system can perform monitoring on the synchronization precision of various different time synchronization devices, and can master the operating state of the time synchronization devices timely, thereby being conducive to processing a fault timely.

The invention relates to a non-intrusive winding temperature measurement method for an oil-immersed air-cooled pie winding transformer. The method comprises the following steps: connecting an oil-immersed air-cooled transformer pie winding temperature measurement and control instrument with an oil level thermometer, a current transformer, an environmental thermometer, and an air-cooled controllerinstalled on the oil-immersed air-cooled pie winding transformer together, collecting corresponding data in real time, and synchronously inputting transformer structural parameters, winding types, andstructure size parameters; establishing a heat balance equation between an oil-immersed air-cooled pie winding transformer winding and transformer oil; and calculating the winding temperature of theoil-immersed air-cooled pie winding transformer. According to the non-intrusive winding temperature measurement method for the oil-immersed air-cooled pie winding transformer provided by the invention, for the characteristics of the oil-immersed air-cooled pie winding transformer, various influencing factors such as the surface oil temperature of the transformer, the winding current and the transformer structural form, the structure and size of a pie winding, the cooling mode and the operation of a cooling fan, etc. are fully considered, so that the measurement of the winding temperature undervarious working conditions of the transformer is more accurate, and the transformer operation and maintenance personnel can master the running state of the transformer in time.

The invention relates to a control system for adding chemicals into cooling water of a central air conditioner for operation and maintenance and a control method of the control system. The control system comprises a main controller, a water quality detection device, a blowdown device, a chemical adding device and a cloud platform. The blowdown device is provided with a plurality of driving devices and a plurality of automatic blowdown valves. The chemical adding device comprises a plurality of chemical adding metering pumps, a plurality of chemical adding buckets, a plurality of liquid level testing electrodes and a plurality of liquid level sensors. The cloud platform is provided with a communication module, a wireless router and the like. When the control system is applied, operation steps are simple and reliable, and observation is convenient; various functions such as online detection of the water quality, automatic operation of chemical adding after blowdown, automatic recording and statistics of chemical adding quantity and cloud platform monitoring can be achieved; and the automation degree is high, the control effect is good, and the control system has high application and popularization value.

The invention relates to a non-intrusive winding temperature measurement method for a forced oil circulation air-cooling cake type winding transformer. The method comprises the steps of connecting a cake type winding temperature measurement and control instrument of the forced oil circulation air-cooling transformer with an oil surface thermometer, a current transformer, an environment thermometer, an air-cooling controller and an oil pump controller and collecting corresponding data in real time, and meanwhile inputting a transformer structure parameter, a winding type and a structure size parameter; building a heat balance equation between the forced oil circulation air-cooling winding transformer and transformer oil; and computing a winding temperature of the forced oil circulation air-cooling cake type winding transformer. According to the method provided by the invention, aiming at the characteristic of the forced oil circulation air-cooling cake type winding transformer, the surface oil temperature of the transformer, the winding current, the cooling mode and the running condition of the forced oil circulation air-cooling cooler are comprehensively considered, so that the measurement on the winding temperature of the transformer under various working conditions is more accurate, and the operation and maintenance personnel of the transformer is facilitated to get the running state of the transformer in time.

The invention relates to a method and system for determining an overall state of a converter valve. The method includes the steps of establishing a model for determining an overall state of a converter valve, defining levels of the overall state of the converter valve, and determining a factor layer and an indicator layer of the model; determining weights of various specific indicators in the indicator layer by an analytic hierarchy process; synthesizing states of the various specific indicators corresponding to various factors in the factor layer by a fuzzy comprehensive evaluation method to determine states of the various factors in the factor layer; and integrating the states of the various factors by evidence reasoning to determine the overall state of the converter valve. The system includes a state determination model establishing unit, an indicator weight determining unit, a factor state determining unit and a state level determining unit.

The invention discloses an automatic control energy-saving system. The automatic control energy-saving system comprises a high-pressure pipeline, a low-pressure pipeline, a connecting pipeline, an adjusting valve installed on the connecting pipeline, a flowmeter communicated with the connecting pipeline, a first pressure transmitter arranged on the high-pressure pipeline, a second pressure transmitter arranged on the low-pressure pipeline, and an optimal control module. A high-pressure air compressor unit, a low-pressure air compressor unit, the first pressure transmitter, the second pressure transmitter, the adjusting valve and the flowmeter are connected with the optimal control module. By means of the automatic control energy-saving system, the running state of air compressors can be grasped in time, the optimal pressure states of pressure of compressed air in the high-pressure pipeline and the pressure of the compressed air in the low-pressure pipeline can be guaranteed, the pressure of the compressed air can be stabilized, the demands of the compressed air can be accurately detected, the running of the air compressors can be reasonably arranged, and the energy consumption can be reduced by about 10 percent.

The invention discloses an ash-slag water stable transportation control system and a control device thereof, and relates to the technical field of chemical coal ash treatment. The ash-slag water stable transportation control system is mainly formed by a transportation system, the control device and a human-computer interaction interface. In the ash-slag water stable transportation control system disclosed by the invention, all components of the transportation system are tightly connected, the continuous transportation performance is strong, the running states of all the components of a transportation pump, a conveyor belt machine, a stirring motor and the like in the transportation system can be mastered by the control device in time, in-time processing can be done when failure occurs, comprehensive treatment of ash-slag water of a space gasifier is ensured, the operating stability of the system is ensured by utilizing stable transportation of the ash-slag water in the system, the whole ash-slag water stable transportation control system is low in failure rate and good in ash-slag water transportation stability, and the requirements of comprehensive treatment of the ash-slag water and the utilization of the system are met.

The invention discloses a hospital management system and method based on the Internet of Things, and the system carries out the collection and analysis of the operation data of hospital equipment through a data collection module and a data analysis module, can find the fault of the hospital equipment in time, enables a task distribution module to generate task information while an alarm module triggers a first alarm signal, and the information to the mobile terminal of the matched maintenance personnel, so that the maintenance personnel can be quickly dispatched to solve the fault problem of the hospital equipment, the maintenance efficiency of the hospital equipment is improved, and the information of the hospital equipment can be stored at any time through the recording and storage effects of the recording and storage module, the operation state of the hospital equipment can be conveniently and timely mastered by workers, and thus the effect of unified management of the hospital equipment is achieved, and the technical problem that the operation and maintenance efficiency of the hospital equipment is low due to the fact that an existing hospital management system cannot monitor the hospital equipment in place and cannot achieve unified management and timely mastering of the operation state of the equipment is solved.

The deployment of the real-time analysis system for EMU driver control information includes the following steps: ① Realize the real-time transmission of vehicle-mounted important data through the GPRS/GSM-R wireless communication network, and send it to the ground data analysis server. The ground data analysis server first collects Analyze the ATP, WTD, and CIR data, and then save it as a single traffic road data based on the vehicle number, train number, and driver number. At the same time, analyze the safety points, and finally store it in the form of files and databases. ②. Through the query and update interface provided by the server, the client performs user rights management, information query, and updates the traffic analysis opinions and safety point analysis opinions of the trains under its jurisdiction, and monitors the safety point statistics of the running EMU trains in real time, Detailed information and the historical record information of the current day; real-time tracking of train operation, etc.

The invention discloses a machine-boat coupling type inspection robot for an offshore wind turbine generator, which comprises an unmanned aerial vehicle and an unmanned boat, and is characterized in that the unmanned boat is provided with a boat body monitoring module for assisting the unmanned aerial vehicle in monitoring tasks; a body of the unmanned aerial vehicle is of a cylindrical frame structure, the unmanned aerial vehicle can conveniently pass through the interior of a fan tower drum, an unmanned aerial vehicle detection module is arranged on the body, and the unmanned aerial vehicle detection module comprises an image acquisition device, an acoustic image acquisition device and a vibration acquisition device and can effectively acquire various data in the tower drum of the wind turbine generator. According to the machine-boat coupling type inspection robot, state monitoring and fault diagnosis on various aspects of an offshore wind turbine generator are achieved by adopting a mode of combined operation of the unmanned boat and the unmanned aerial vehicle, the operation state of the wind turbine generator can be mastered in time, potential fault symptoms can be found as soon as possible, the fault rate is reduced, and safe and efficient power generation operation of the wind turbine generator is guaranteed; and meanwhile, the conventional manual inspection mode is changed, the operation and maintenance cost is greatly saved, and the personnel safety is ensured.

The invention discloses a portable catenary suspension state detection and monitoring system, relates to the technical field of catenary inspection, and can realize a picture-in-picture function, anda red square frame is set in a visual field image, so that under the condition that line basic data is inaccurate, a worker can quickly judge whether the contact suspension is in the visual field of the high-definition imaging CCD or not; with the adoption of the system, panoramic high-definition imaging detection of the suspension state of the contact net in any section can be realized without moving a rail car and without completely depending on line basic data, so that the high cost of the moving rail car is saved, the safety risk is reduced, and most importantly, comprehensive inspection of complex lines in station branch lines and hub areas is realized. The operation state of equipment in the section can be mastered in time, the inspection skylight requirement and labor investment arereduced, the operation risk is reduced, the safe operation guarantee of the equipment is improved, meanwhile, the system is easy to use, and the use and maintenance cost of the detection system is greatly reduced.

A vibration monitoring and active vibration suppression method for a locomotive vehicle comprises the following steps of acquiring a vibration signal of an oil pressure damper in the vehicle, and transmitting the acquired vibration signal to a locomotive vehicle control system; establishing an oil damper vibration spectrum taking a vibration signal of an oil damper as a vertical coordinate and time as a horizontal coordinate and a railway track road condition spectrum taking the vibration signal of the oil damper as the vertical coordinate and a railway track position as the horizontal coordinate in the locomotive vehicle control system; and monitoring the vibration frequency spectrum of the oil damper and the railway track road condition spectrum in real time, and enabling a correspondingdamper in the vehicle to actively suppress vibration according to the real-time railway track road condition spectrum signal. According to the invention, online detection of the oil damper is realized, the initiative and timeliness of locomotive vehicle control are improved, the vibration suppression damping force frequency spectrum of the damper and the railway track road condition frequency spectrum are synchronously formed, the damper actively resists locomotive vehicle vibration, and the operation stability of the locomotive vehicle is improved.

The invention relates to a method for measuring the sag of a flexible conductor in a transformer substation. The method is technically characterized by comprising the following steps of measuring theshadow lengths l1 and l2 of two conductor frameworks on the horizontal ground; measuring the length l0 of the ground shadow of the marker post between the two lead framework grounds; measuring to obtain the length l3 of C2C3; and according to a parallel light principle, obtaining tan alpha1 = tan alpha2 = tan alpha3 = tan alpha0 = 10/h0 = 11/h1 = 12/h2 = 13/h3, and calculating the sag of the flexible conductor in the transformer substation according to the tan alpha1 = tan alpha2 = tan alpha3 = tan alpha0 = 10/h0 = 11/h1 = 12/h2 = 13/h3. According to the method, the design is reasonable, the sag of the flexible conductor in the transformer substation is indirectly measured by utilizing a parallel light principle, and under the condition that the span and the framework height of the flexible conductor are unknown and electrified, the function of quickly and accurately measuring the sag of the flexible conductor in the transformer substation is realized, the operation state of the flexible conductor can be grasped timely, the safe and reliable operation of a device is guaranteed, and the method has the advantages of being simple and convenient to operate, being small in measurement error, being not affected by the live-line safety distance, and can be widely used for the sag measurement of the flexible conductor with the span smaller than 100m.

The invention relates to an intelligent display interaction terminal and method, an interaction system and a controller. The intelligent display interaction terminal comprises a processor which is used for obtaining the operation information of electrical equipment connected with the terminal and judging whether the current electrical equipment operates normally or not according to the operation information; and a display which is used for displaying the judgment result and the operation information of the electrical equipment under the control of the processor. The system also comprises a portable device and a wireless communication module. The intelligent display interaction terminal can judge whether the current electrical equipment operates normally or not according to the obtained operation information of the electrical equipment, and when the electrical equipment breaks down, the fault information prompt box is displayed through the displayer, and the fault information is sent tothe portable equipment in time; according to the intelligent display interaction terminal, a user can conveniently master the running state of the electrical equipment in time, the user can conveniently find out equipment faults in time, losses caused by the equipment faults can be reduced, and the working efficiency is improved.

The invention discloses a circuit breaker service life prediction method based on small sample learning, and belongs to the technical field of circuit breaker equipment. According to the circuit breaker service life prediction method based on small sample learning, a small sample learning method is utilized, the needed sample size can be generated according to a small amount of data, a prediction model can be established without a large number of fault diagnosis sample libraries, the prediction efficiency is high, and the application cost is low; and the health condition of the circuit breaker is analyzed and the service life of the circuit breaker is predicted according to the vibration waveform of the circuit breaker. According to the circuit breaker service life prediction method, a Markov chain prediction method is not adopted, complex probability calculation of each state is not needed, the prediction accuracy can be effectively improved, the actual prediction accuracy and prediction efficiency can meet the requirements of field application, and the method is simple, effective and feasible. Furthermore, the maintenance efficiency of the circuit breaker is improved, operation and maintenance personnel can master the operation state in time, and safety and reliability of power supply are guaranteed.