74results about How to "Reliable data basis" patented technology

The invention relates to an online monitoring method and an online monitoring system for oil abrasive particles of a machine, which belong to the field of monitoring of the wear condition and failure diagnosis of a machine. The method monitors the wear condition of the machine by utilization of the principle that the oil abrasive particles are provided with net charges and the static signals are stronger when the concentration of the charged abrasive particles is high. The system comprises an abrasive particle online monitoring subsystem, wherein the subsystem is formed by a static sensor (1), a charge amplifier (7) and a dynamic signal test analysis instrument (8) in turn. The invention designs the abrasive particle online monitoring system on the basis of combination of static images and microscopic images aiming at the defects of the oil abrasive particle offline monitoring technology and the prior online monitoring technology. The system is suitable for online monitoring of abrasive particles with the thickness of more than 5 micrometers, and has low cost.

The invention discloses a method for remotely monitoring the real-time working condition of engineering mechanical vehicles, which comprises a step of data acquisition: acquiring all types of real-time working condition data and GPS positioning date, a step of data preprocessing: filtering and smoothing the acquired working condition data to obtain effective working condition data, a step of data upload: uploading the acquired effective working condition data and GPS positioning date to a control center, a step of data processing: generating charts and report forms of all types of working condition data corresponding to the engineering mechanical vehicle, and a step of remote fault early warning: sending early warning prompt message when the uploaded effective working condition data exceeds/lowers the early warning threshold. The method of the invention can realize the remote monitoring of the real-time working condition of engineering mechanical vehicles, has characteristics of real-time and overall acquisition of working condition data, accurate and timely fault analysis, convenient and quick fault treatment, and can greatly reduce the management cost on the engineering mechanical vehicles.

The invention relates to an unmanned aerial vehicle (UAV) dropsonde and a method for releasing and controlling the same. A global positioning system (GPS) antennal, a GPS receiving unit, a battery, a sounding acquisition control circuit, a wireless transmission unit, a parachute, an air pressure sensor, a temperature sensor and a humidity sensor are arranged in a dropsonde shell; a transmission antenna is installed on the shell; the upper part of the shell is connected with a hanger; the upper surface of the shell is fixedly provided with contacts; the battery is connected with the GPS receiving unit, the wireless transmission unit and the sounding acquisition control circuit through a relay to form a control loop; two contact reeds connected with the contacts are parallelly connected to the control loop; the air pressure sensor, the temperature sensor and the humidity sensor are fixed outside a cabin; guide lines of the air pressure sensor, the temperature sensor and the humidity sensor are respectively connected with control contacts of a load control circuit. Electromagnet can be selected to lock or release the UAV dropsonde, and the method for releasing and controlling the UAVdropsonde has a simple principle and effective protection measurements, and can be used for effectively and directly acquiring the temperature data, the humidity data and the air pressure data of a vertical atmospheric section and sending the data back to a ground center in real time.

The invention discloses a method for processing coal gas flow center dynamic tracking and monitoring coal gas utilization rate. The method comprises the steps of 1 data collecting and processing; 2 infrared imagery processing; 3 temperature field calibration; 4 coal gas flow center dynamic tracking; 5 coal gas utilization rate monitoring. The method has the advantages that implementation is easy, temperature field calibration is achieved through the treatment on the collected infrared imagery combining crossed thermometry data and blast furnace design data, dynamic tracking on charge-level coal gas flow center fall point distribution is achieved, the coal gas flow center distribution characteristics and the corresponding coal gas utilization rates are classified, the relation between the coal gas center change and the blast furnace coal gas utilization rate is confirmed, real-time monitoring on the coal gas utilization rate is realized, the dynamic changing condition of the coal gas flow center and the relation between the dynamic changing condition of the coal gas flow center and the corresponding coal gas utilization rate can be recognized timely and accurately, on-line monitoring and visual control on the burden distribution operation of the blast furnace are achieved, and the advantages of being high in accuracy rate and strong in real-time performance are achieved.

The invention discloses a state monitoring system based on single-chip microcomputers. The state monitoring system comprises an interface board single plate and multiple service board single plates. Each single plate comprises a single-chip microcomputer processor, a current acquisition circuit, a voltage and temperature acquisition circuit, an I2C interface, a GPIO interface and an analog I2C interface. The interface board single plate further comprises an RS 485 interface. A distributed master-slave communication structure is adopted in the state monitoring system, an interface board single-chip microcomputer serves as a master computer, service board single-chip microcomputers serve as slave computers, and the single plates are distinguished by being configured with ID numbers. The interface board single-chip microcomputer is used for collecting state information of each single plate, enables each single plate to be in communication with a host computer and an external master control unit in a uniform mode, and state parameters like the power voltage, the current, the core chip temperature of each single plate and external chip work clocks in a whole machine can be monitored in real time. The state monitoring system has the advantages of being complete in detection, simple in external interface, uniform in configuration item, high in generality, good in real time performance, and the like.

The invention relates to an electric field restraining method coal safety type fully-mechanized excavating onboard geological structure detection system and a method thereof. The fully-mechanized excavating onboard geological structure detection system is used for detecting the hidden geological structure in front of a tunneling surface under a coal mine and is composed of a coal road fully-mechanized excavating ahead detector, an emission electrode, a restraining electrode and a grounding electrode. Double-frequency modulating wave current is emitted to an area to be detected through the emission electrode and the restraining electrode so as to generate induced polarization effect in coal rock. Polarization information is collected and processed by a receiving part of the detector, apparent resistivity and visual width frequency, namely power feeding equipment (PFE) values, can be automatically calculated and converted into coordinate graphs for display, accordingly, the ahead tunneling geological structure can be judged, and the abnormal positions can be determined by angle scanning and depth scanning. Detection data can be automatically stored and be further analyzed through special data interpretation software, the ahead tunneling geological structure can be obtained, and advanced detection of the fully-mechanized excavating surface of a coal road can be finished. The electric field restraining method coal safety type fully-mechanized excavating onboard geological structure detection system and the method thereof are in accordance with coal safety verification standards, can be in cooperative work with a heading machine and is fast in detection, high in accuracy, good in instantaneity and convenient to operate.

The invention relates to a pond culture water quality monitoring system and a pond culture water quality monitoring method, in particular to a pond culture water multi-parameter acquisition system and a pond culture water multi-parameter acquisition method. The pond culture water multi-parameter acquisition system comprises a water quality data acquisition node and an on-site wireless communication network, wherein the on-site wireless communication network is based on Institute of Electrical and Electronics Engineers (IEEE)802.15.4 communication protocol; the network node of the on-site wireless communication network comprises a personal area network (PAN) coordinator, a full-function device (FFD) and a reduced-function device (RFD); the on-site wireless communication network is constructed into star topology and peer-to-peer network topology; and the data acquisition node comprises a water quality sensor and a wireless network transceiver, and after receiving sensor data, transmits water quality data to a wireless network periodically. In the invention, water quality data can be acquired in a large-scale culture fish pond in real time for regulating the quality of the water in the culture pond and automatically controlling on-site equipment.

The invention provides an ordered charging method of electric cars connected to a power grid. The method comprises: an area wind-light output probability model in a generating area is established; a two-segment peak-valley electricity price model is established, and ordered charging of electric cars is guided according to a solution result of the two-segment peak-valley electricity price model; an optimization model is established for beginning and ending time of a valley electricity price period and peak-valley electricity prices of the two-segment peak-valley electricity price model; and according to a genetic algorithm, an optimization model is solved to obtain an optimal ordered charging scheme of electric cars. According to the method, a demand response scheme is fully considered and an effective and feasible ordered charging control strategy is put forward for the scheme; the economic benefits of an electric car charging station are improved effectively and reliably; a reliable data basis is provided for ordered charging of electric cars connected to a power grid and high-efficiency ordered charging of electric cars is guaranteed; and the energy loss of the power grid is reduced and stable operation of the power grid is also guaranteed.

The invention discloses a data information input method based on Via Wizard software. The method comprises the following steps: obtaining a laminated information table of a printed circuit board; classifying and arranging all the laminated layers in the laminated layer information table; extracting preset parameter information from the laminated information table which is classified and arranged,wherein the preset parameter information comprises a via hole parameter; and converting the extracted via hole parameters into a file in a preset format, and inputting the converted via hole parameters of the file in the preset format into Via Wizard software. Format conversion is carried out on a lamination impedance calculation table and is converted into a unified format, so that on one hand, the error rate of data is reduced for simulation work of an engineer; on the other hand, input is faster, and the working efficiency is improved.

The invention discloses a diagnostic method for measuring an annular working fluid level and working conditions of a rod-pumped well by electric parameters, relates to the technical field of oil recovery of oil fields, and solves the problem that a traditional measurement of oil well working condition parameters can be realized through the fit of multiple instruments and labors. In a three-phase flow (oil, gas and water) of oil well oil recovery fluid, as the gas influence exists in the test, the online automatic and practical test of the annular working fluid level of the oil recovery well in a scene well mouth is difficult. The gas influence is excluded from data by the weight in the testing process; in the state of the same operation working conditions, the differential treatment is performed for the data to eliminate uncertain factor errors or fixed errors; the correction and the compensation are performed in different operation states; the high-speed data acquisition guarantees the data density, and realizes the data reliability; the upper and lower stroke torque data and time of the rod-pumped well are periodically treated; the upper and lower stroke data of a pumping unit is superposed in operation; and the methods are combined to realize online continuous, automatic and practical diagnosis for measuring the annular working fluid level and the working conditions of the rod-pumped well by the electric parameters on scene.

The invention provides a traction elevator health state characteristic parameter extraction method based on big data analysis. The method comprises the following steps of determining the risk distribution condition of a traction elevator; determining at least one risk point of the traction elevator based on the risk distribution condition; determining the weight coefficients corresponding to the at least one risk point based on a judgment matrix; determining the health state characteristic parameters required to be extracted by the traction elevator on the basis of the weight coefficients corresponding to the at least one risk point; determining an extraction mode of the health state characteristic parameters based on the signal types of the health state characteristic parameters. According to the traction elevator health state characteristic parameter extraction method, the operation condition of the elevator is known by carrying out on-line monitoring on the elevator, a data basis isprovided for the intelligent direction development of the elevator, the operation state and the problem of the elevator can be clearly known on the basis of the health state characteristic parameters, potential safety hazards existing in the elevator can be found in time, and the elevator supervision level related to public safety is improved.

The invention discloses an experimental device and method for a frozen soil foundation upper pipe culvert model under a traffic load effect. The experimental device comprises an outer box body and an inner box body, wherein a waterproof layer is paved at the bottom of the inner box body; a simulated soil body is paved on the waterproof layer; a test pipe culvert is arranged in the simulated soil body; the experimental device further comprises a servo hydraulic loading system, a water inlet control system, a water discharging and collecting system, a traffic load simulation system, pressure sensing systems and a PIV (particle image velocimetry) testing system, wherein the servo hydraulic loading system is fixed at the upper part of the outer box body; the water inlet control system and the water discharging and collecting system are arranged above the side of the outer box body and below the opposite side of the outer box body respectively; the traffic load simulation system is located on a cover plate of the inner box body and below the cover plate of the outer box body; the pressure sensing systems are distributed at the periphery of the test pipe culvert in the inner box body; and the PIV testing system is located at the outer part of the outer box body and is used for researching stress characteristics of the frozen soil foundation upper pipe culvert and displacement of surrounding filling soil under a traffic load. According to the experimental device and method, influences, caused by the traffic load and freezing and thawing, on the pipe culvert are considered and the stress of the pipe culvert and the displacement of the surrounding filling soil are analyzed; the influence condition on the pipe culvert, caused by the fact that vehicles pass through an embankment in a frozen soil region, can be simulated relatively really.

Provided is a method of using loading force to measure rod pumped well annular space working fluid level and a work condition diagnosis method, relating to the technical field of oil extraction in oil field. The provided method solves the problem that the measuring of oil well work condition parameters is achieved by various instruments and the cooperation of manual work. The extracted oil fluid of the oil well is a three phase stream (oil, water, and gas) which is greatly affected by the gas in the test process, and the online measuring of the working fluid level is difficult. The method comprises the steps of: excluding the gas influence, calculating by weight in the test process; detecting and recording the time of the upper dead point and the lower dead point of each stroke during the data collecting process, so as to divide the collected data into upper stroke data and lower stroke data, eliminating uncertain factor errors and fixed errors by differential process; achieving data reliability by data density ensured by the high speed data collection, periodically disassembling the upper and lower stroke loading force data and time of the rod pumped well; superposing the symmetric areas of the upper and lower stroke data of the running oil pump; using the aforementioned method in combination to achieve on-site measurement of rod pumped well annular space working fluid level and the work condition diagnosis.

The invention relates to an advertising billboard with a PM (Particulate Matter) 2.5 monitoring function. The advertising billboard with the PM 2.5 monitoring function comprises an advertising billboard body which comprises a framework and an advertising unit. The advertising billboard with the PM 2.5 monitoring function is characterized in that the advertising billboard body is provided with a PM 2.5 monitoring device which employs a gravimetric method, a beta ray absorption method or an oscillating microbalance method and the PM 2.5 monitoring device is arranged inside the advertising billboard or on the surface of the advertising billboard. The advertising billboard with the PM 2.5 monitoring function has the advantages of enabling PM 2.5 numerical values people concern to be timely released due to the fact that the PM 2.5 monitoring function is added on the basis of the traditional advertising billboard; accordingly improving the attention of the people to the advertising billboard; being good in advertising effect; simultaneously enabling the people to obtain timely and accurate environment quality information tips to take timely protective measures; providing good help for exercise and outdoor activities; and reducing the total costs due to the fact that a multi-function is achieved.

The invention discloses a method for monitoring the bending life of a steel wire rope of a CNC (Computer Numerical Control) floor type boring and milling machine. The method comprises the steps of (a) dividing the steel wire rope into n zones for independently calculating the bending frequency; (b) judging whether bending is carried out or not; (c) reflecting the bending position of the steel wire rope; (d) calculating zones, which are subjected to the bending, on a first fixed pulley; (e) calculating zones, which are subjected to the bending, on a second fixed pulley; (f) calculating and judging the total bending frequency. According to the technology for monitoring the bending life of the steel wire rope used by the CNC floor type boring and milling machine, provided by the invention, the bending frequency of the steel wire rope in an overall length range can be recorded in real time and accumulatively calculated, the distribution situation of the bending frequency along the overall length of the steel wire rope can be displayed, alarm information can be transmitted when the maximum bending frequency is approximate to or is up to a theoretical limit value, real-time monitoring on the bending life of the steel wire rope is realized, the overall safety of products of the CNC floor type boring and milling machine can be increased, and an accurate and reliable data basis is provided for selecting and maintaining the steel wire rope.

The invention provides a correction method for the foundation bearing capacity characteristic value. The correction method comprises the steps that (1) a flat plate loading test is carried out; (2) aload settlement curve is drawn; (3) the foundation characteristic bearing capacity is determined according to the types of the load settlement curve; (4) the different types of the foundation bearingcapacity are corrected by adopting corresponding correction formulas; and (5) the accurate foundation bearing capacity characteristic value is obtained. According to the correction method, by utilizing the characteristic bearing capacity correction formulas, the foundation bearing capacity obtained under the different foundation conditions and through the loading test of flat plates with the different specifications is corrected, the result of the flat plate loading test is more precise, more standard and more unified, and the reliable data basis is provided for basic design of a building foundation.

The invention discloses a plantar correction method and system based on lower limb evaluation and gait analysis and application of the method and the system. The plantar correction method comprises the steps: S1, receiving RGB-D video data and plantar pressure data; S2, synchronizing the time sequence of the RGB-D video data and the time sequence of the plantar pressure data, and aligning a Depth image and an RGB image; S3, segmenting a human body mask; S4, extracting a plurality of feature key points of the lower limb part; S5, acquiring spatial positions of the feature key points; S6, calculating an included angle, and obtaining a curve of each angle of the lower limb changing along with the gait cycle; and S7, performing gait analysis and lower limb evaluation, acquiring gait characteristics and human body lower limb conditions, increasing pressure on corresponding parts of the foot sole during human body movement according to the lower limb conditions, and designing and manufacturing a plantar orthopedic device. The plantar orthopedic device is designed and manufactured through the gait analysis and lower limb evaluation so as to prevent the lower limbs from being abnormal after the plantar exerts abnormal force, and the purpose of protecting the lower limbs is achieved after the plantar exertion recovers to the normal range by adjusting the distribution range of the plantar exertion.

The invention discloses an infrared thermal wave based non-destructive testing system for wind turbine blades. The system comprises a remote control aircraft, an infrared thermal wave testing component and a control component, wherein the infrared thermal wave testing component is connected with the remote control aircraft; the remote control aircraft and the infrared thermal wave testing component are respectively communicably connected with the control component; and the remote control aircraft is used for receiving a flight control command sent by the control component to convey the infrared thermal wave testing component to a preset test position according to the flight control command. The system provided by the invention has the technical effects that the collecting of real-time heatmap data of the wind turbine blades is realized to complete blade image analysis and automatically determine the type, the position and the size of a blade depth surface defect, so that an accurate and reliable data basis is provided to maintenance personnel of the wind turbine blades.

The invention discloses a rotary kiln. The rotary kiln comprises an inclined rotary kiln barrel, a kiln head arranged at the head portion of the rotary kiln barrel, a kiln tail arranged at the tail portion of the rotary kiln barrel, and a transmission device driving the rotary kiln barrel to rotate, wherein the kiln tail is higher than the kiln head, a burner is arranged inside the kiln head, anda feeding inlet and a smoke outlet are formed in the kiln tail. The rotary kiln is characterized in that refractory brick layers are piled on the inner wall of the rotary kiln barrel and at least comprise material flying structures formed by arch-shaped protrusions which protrude to the inner wall of the barrel in the axial direction of the barrel; and the arch-shaped protrusions of the material flying structures protrude out of the surfaces of the refractory brick layers on the side face. Materials inside the kiln are evenly roasted, the breakage rate of products can be reduced, the product performance is greatly improved, the heat exchange area between the products and hot airflow inside the rotary kiln barrel is increased, and the roasting efficiency of the haycite products is effectively improved.