169results about How to "Achieve life" patented technology

The invention discloses a wind turbine generator transmission chain full-working-condition test simulation device. The device comprises a power source system, a coordinated loading mechanism, a transmission chain system, a power generator, a basic platform motion mechanism, a load and motion control system, a wireless detection device and a fatigue and fault diagnosis system. The power source system, the transmission chain system and the power generator are sequentially connected, the coordinated loading mechanism is installed on a main shaft, the transmission chain system and the power generator are fixed to the basic platform motion mechanism, the basic platform motion mechanism is connected with the load and motion control system, the wireless detection device is respectively connected with the transmission chain system and the fatigue and fault diagnosis system, and the fatigue and fault diagnosis system is connected with the load and motion control system. The simulation device can simulate real loads of a wind turbine generator on different work conditions and provide preconditions for wind turbine generator transmission chain full-working-condition performance tests, fatigue service life pre-assessment and fault mechanism researches.

The invention discloses an unsupervised model parameter migration rolling bearing life prediction method, and belongs to the technical field of rolling bearing state identification and residual life prediction. The method is provided for solving the problems that in practice, rolling bearing labeled vibration data under a certain working condition is difficult to obtain, health indexes are difficult to construct, and the service life prediction error is large. The method comprises the steps that firstly, extracting root-mean-square features from rolling bearing full-life-cycle vibration data,and introducing a new bottom-to-top time sequence segmentation algorithm to segment a feature sequence into three states composed of a normal period, a degradation period and a recession period; marking the state information of an amplitude sequence of the vibration signal subjected to fast Fourier transform, taking the amplitude sequence as an input of an improved full convolutional neural network, extracting deep features, and constructing a source-domain model and a state recognition model subjected to fine adjustment through training to realize rolling bearing multi-state recognition; andestablishing a rolling bearing life prediction model by using a state probability estimation method. Experiments prove that the method provided by the invention does not need to construct health indexes, can realize rolling bearing state identification and life prediction under different working conditions under an unsupervised condition, and obtains a better effect.

An electro-optical device includes a first substrate, a second substrate and a liquid crystal, and has a display region and a peripheral region. The peripheral region of the first substrate has a peripheral electrode and a first orientation film covering the peripheral electrode. Then, since the density of first orientation film in the display region is different from the density of the first orientation film in the peripheral region, it is possible to efficiently capture ionic impurities present in the liquid crystal.

The invention relates to a method for evaluating a service life of a metallic structure of an offshore platform crane. The method comprises: a computer uses a wireless dynamic strain acquisition module to obtain strain time course data collected by a strain gauge arranged at a weak part of a metallic structure of a crane within fixed time; and the computer processes the strain time course data according to a rain-flow counting method, calculates a cumulative fatigue damage D of a component, and calculates a fatigue service life T of the component based on the cumulative fatigue damage D. Using the method provided by the invention, wireless strain monitoring and residual life evaluation on the metallic structure of the offshore platform crane can be realized remotely and wirelessly. On the basis of the service life evaluation result of the component, a corresponding service life prolong plan can be formulated before the fatigue damage of the component, so that the offshore platform crane can work normally and unnecessary losses can be reduced.

The invention provides a method for rut maintaining and paving of a municipal road. The method comprises the following steps: (1) milling an asphalt surface layer; (2) spreading a modified emulsified asphalt bonding layer; (3) paving an emulsified asphalt cold-recycling mixture lower surface layer; (4) paving a high-elasticity rubber asphalt stress absorption layer; and (5) paving a cement-asphalt pouring type composite pavement surface layer. The combined paving layer obtained through the method has an excellent anti-rutting property and can sufficiently utilize a milled waste asphalt mixture; the integral structure has the characteristics of high rutting resistance, skid resistance, abrasion resistance, long life and low carbon.

The invention discloses a reinforced alloy material; and a surface layer of the alloy material contains such elements as aluminum oxide, silicon dioxide and nanometer graphene. The alloy material is deeply extended on the basis of anodic oxidation, microarc oxidation and multi-component composite oxidation, and is a result under a complex effect of instant high temperature, multi-component composite oxidation liquid and nanometer penetrant through applying positive and negative high voltage, high current and positive and negative pulses by using unique structures, physical and chemical characteristics as ultrahigh hardness and high-temperature resistance, small size effects and surface and interface effects of such nanometer materials as nanometer graphene and nanometer silicon dioxide. The method comprises the steps of: (1) surface cleaning; (2) oxidation; and (3) penetration. The light alloy material after surface reinforcement by the method, in particular a combustion chamber of an internal combustion engine with fuel combustion consumption and generating a pollution source is prominent in reflection thermal insulation anti-carbon self catalysis function, and is higher in high-temperature erosion resistance and wear resistance.

A light source device includes a light source section that emits laser beam, a member reducing light quantity unevenness of the laser beam, a diffusion member that is provided in a traveling optical path of the laser beam between the light source section and the member reducing light quantity unevenness and diffuses the laser beam, a detection element that detects a physical characteristic of the diffusion member and outputs a state detecting signal, and an abnormal state determiner that determines an abnormal state of the diffusion member based on the state detecting signal.

The invention discloses a compound thermal insulation plate for thermal insulation of a wall body and a manufacturing method and a using method thereof, which is characterized in that the compound thermal insulation plate consists of a panel, a thermal insulation body, a combined fixed sleeve, a positioning expansion sleeve, a bolt, a T-shaped connecting strip, a T-shaped connecting plate, a rotation angle connecting plate and a blind rivet; the compound thermal insulation plate can be prepared in advance or combined and installed on the field; when in use, the compound thermal insulation plate can be fixed on an exterior wall of a building through the positioning expansion sleeve and the bolt, and the compound thermal insulation plate and the exterior wall of the building can form a smooth and stable whole under the action of the combined fixed sleeve, the positioning expansion sleeve, the bolt and other connecting parts. The compound thermal insulation plate can not only lead the material for the thermal insulation of the wall body to obtain permanent envelope, but also improve the fire-protection rating, meet the requirements of decorative surfaces of different exterior walls, shorten the construction cycle and reduce the engineering cost.

The invention relates to a multi-parameter joint diagnosis method for typical faults of an asynchronous motor. The method comprises the following steps of firstly, acquiring temperature, current waveform data, vibration speed data and current data of the asynchronous motor under a load during normal operation at intervals after a system is started and operates stably, acquiringdata of a time axisenvelope line according to the data to serve as judgment parameters for normal operation of the asynchronous motor, takingthe ratio of two groups of amplitude average values before and after online monitoring operation as a fault judgment parameter of the vibration signal,wherein the ratio of the maximum value of the current amplitude envelope data to the rated current value input by the motor isused as a judgment parameter of the current time domain fault, and the maximum value of the frequency band variation of the current data spectrum result and the current amplitude average value is weighted and averaged to be used as a fault diagnosis parameter under the motor current spectrum,and finally, continuously acquiring temperature, current waveform data, vibration speed data and current data of the asynchronous motor during operation, and realizing comprehensive evaluation of operation parameters, operation states and service life conditions.

The invention discloses a transformer substation grounding grid digital management system. The system comprises a transformer substation information management system. The system comprises five subsystems, namely a grounding grid information management system, a detection personnel information management system, a grounding grid corrosion diagnosis system and a historical monitoring information management system, the subsystems are all connected with a remote database server, an appointed page is accessed through a browser to upload measurement data, and rapid calculation of corrosion diagnosis is completed through a remote calculation server; Through combination of a client and a server, a user can carry out transformer substation operation. information management of a grounding grid anddetection personnel; Corrosion diagnosis and historical data analysis of the grounding grid are achieved, finally informatization management, digital management and visual management of the transformer substation and the grounding grid are achieved, the operation state of the grounding grid is comprehensively mastered, continuous tracking and prediction of the corrosion state of the grounding gridare achieved, and critical data support and decision basis are provided for life prediction of the grounding grid.

The invention belongs to the technical field of chemical substance detection and relates to a differential confocal discrete fluorescence spectrum and fluorescence lifetime detection method and device. The basic thought is that a differential confocal object surface positioning technology with a precision axial resolution ratio and a discrete fluorescence spectrum and fluorescence lifetime measurement technology are fused; high-precision measurement of a three-dimensional shape of the surface of a sample to be detected is solved by utilizing a differential confocal technology; meanwhile, high-sensitivity detection of a fluorescence spectrum and fluorescence lifetime of each point on the surface of the sample to be detected is solved by utilizing the discrete fluorescence spectrum and fluorescence lifetime measurement technology, so that three-dimensional high-resolution space substance component distribution information is obtained. According to the differential confocal discrete fluorescence spectrum and fluorescence lifetime detection method and device, a differential confocal measurement technology and a fluorescence substance component detection technology are fused for the first time; a fluorescence imaging system has the same transverse resolution ratio on each position of the surface of the sample to be detected; finally, measured fluorescence spectrum distribution accurately corresponds to the three-dimensional shape. The technology provided by the invention has a wide application prospect in the fields of biological science, medical science, material science and clinical medical diagnosis.

The invention discloses an automobile battery capacity prediction method, an automobile battery life prediction method, an automobile battery life prediction device and a storage medium. The method comprises the following steps: acquiring historical operation data sent to a remote monitoring platform by a to-be-detected vehicle; performing purpose classification on the to-be-detected vehicle based on the historical operation data; obtaining a battery capacity theoretical value of the to-be-detected vehicle based on an ampere-hour integral method; and inputting the battery capacity theoretical value of the to-be-detected vehicle into a pre-trained battery capacity estimation model corresponding to the purpose classification of the to-be-detected vehicle to obtain a battery capacity predicted value. According to the scheme, under the condition of a small amount of electric vehicle battery experiment data, the battery capacities of the electric vehicles in the market can be predicted according to the purposes based on the new energy remote monitoring data, the cost is saved, and the prediction precision is improved.

The invention discloses a gold nano-rod/polyethylene glycol/carbon dot nano-hybrid imaging contrast material which comprises polyethylene glycol, a gold nano-rod and a carbon dot. The gold nano-rod is connected to one end of the polyethylene glycol, the carbon dot is connected to the other end of the polyethylene glycol, the gold nano-rod is connected with the polyethylene glycol through a gold-sulfur coordination bond, and the carbon dot is connected with the polyethylene glycol through an amido bond. A preparation method of the gold nano-rod/polyethylene glycol/carbon dot nano-hybrid imaging contrast material is simple and controllable, and the unique optical property of the gold nano-rod is kept while water solubility of the gold nano-rod is enhanced. Besides, the material has the surface plasma resonance property of the gold nano-rod and the fluorescent property of the carbon dot. Diffuse reflection imaging can be realized by the aid of excellent optical reflection and scattering properties of the gold nano-rod, and fluorescent lifetime imaging is realized by the aid of the carbon dot, so that multi-modal imaging is realized.

The invention relates to a light-emitting diode (LED) street lamp energy-saving automatic control method and device. The device comprises a power supply, an automatic control circuit and an LED light source, wherein the power supply is a flyback power supply containing an AC protection circuit, a common-mode rejection circuit, a rectifier filtering circuit and a constant pressure constant currentcircuit which are connected successively; the automatic control circuit comprises a clock circuit, a SCM circuit and a switch circuit which are connected successively; and the LED light source comprises an LED light source 1 and an LED light source 2 which are arranged in a chip in parallel, the cathode is directly connected with the negative electrode of the power supply, the anode is connected with the automatic control circuit; and the automatic control circuit periodically and automatically connects the positive electrode of the power supply with the anodes of the LED light source 1 and the LED light source 2 according to the illumination brightness demands of streets to ensure that the two LED light sources work at the same time, or periodically, automatically and separately connectsthe positive electrode of the power supply with the anode of the LED light source 1 or the LED light source 2 to ensure that the LED light source 1 or the LED light source 2 works. The invention solves the problems of saving the energy and prolonging the service life of the LED street lamp, and has the obvious advantages of simple structure, good illumination quality for streets and no illumination dark space.

The invention discloses a self-charging type all-dimensional inspection robot for a sealing-tape machine. The self-charging type all-dimensional inspection robot comprises a frame, a walking device, a self-charging device and a detection control system. The walking device is mounted on the frame and drives the self-charging type all-dimensional inspection robot for the sealing-tape machine to walk in the sealing-tape machine; the self-charging device is fixed on the frame and provides electric energy for the inspection robot; the detection control system is used for controlling the action of the walking device and detecting the state of each part of the sealing-tape machine; the self-charging type all-dimensional inspection robot for the sealing-tape machine is arranged in the sealing-tape machine, and comprehensive inspection of state detection of all parts of the sealing-tape machine is achieved.

The invention relates to a system for life evaluation and forecasting by repeatedly using a carrier and a method for life evaluation and forecasting by repeatedly using the carrier, and belongs to thetechnical field of spacecraft maintenance and guarantee. Specific to the problem of repeat use of the carrier through many complex severe environments, sensors distributed on the carrier are mainly used for collecting data of an aircraft component in real time; a weighting and dimensionality-reduction algorithm is applied to perform weighting and dimensionality-reduction on part component data required to be monitored, thus the index quantification difficulty of life evaluation and forecasting is solved; on this basis, the residual life of the part component is matched by combining with the inherent property data of the product and others; the sensor data updated in real time can update the fitted residual life curve, thus the forecasting result is more exact and reliable.

A multi-channel detecting system for detecting the optical performance of an LED chip is characterized in that the system comprises a PCB, a sample table, a plurality of electrodes, a connecting plug, an electrical detecting unit, an optical detecting unit and a point connecting device; the sample table is arranged at the center of the PCB and is used for mounting the LED chip; the electrodes are arranged around the PCB; the connecting plug is electrically connected with the electrodes; the electrical detecting unit comprises a voltage meter, a current source, a switch matrix and an output plug, the voltage meter and the current source are electrically connected with the output plug through the switch matrix, and the switch matrix converts the electrical connection of all pins in the output plug; the point connecting device comprises a spot-welder and a metal wire, and the spot-welder is used for enabling the two ends of the metal wire to be connected with the electrodes and the LED chip respectively. The multi-channel detecting system is used for directly detecting the LED chip.

The invention discloses a cable tunnel comprehensive state evaluation method based on an operation and maintenance system. The method comprises the following steps of dividing cable tunnel operation state evaluation factors into quantitative evaluation factors and qualitative evaluation factors; evaluating the operation state of the cable tunnel based on the quantitative evaluation factor and thequalitative evaluation factor; by dynamic weight adjustment method based on a perceptron. through real data training, dividing into dynamic matching quantitative evaluation factor weight and qualitative evaluation factor weight, solving a cable tunnel comprehensive state evaluation result on the basis of a cable tunnel comprehensive state qualitative factor evaluation result, a cable tunnel comprehensive state quantitative factor evaluation result and a quantitative and qualitative evaluation factor weight matrix. Monitoring acquisition data (quantitative evaluation factors) and operation andmaintenance data (qualitative evaluation factors) are combined, and state holographic perception and full-life management of the cable tunnel are achieved.

The present invention provides an elevator door device, which has: an elevator door including a first door and a second door; a first door driving device and a second door driving device respectively having a first rotating shaft and a second rotating shaft; The first power transmission mechanism that moves the first door by the rotation of the first rotation shaft; the second power transmission mechanism that moves the second door by the rotation of the second rotation shaft; the signal that generates a signal corresponding to the rotation of the first rotation shaft a position detector; and a door control device for controlling the second door driver so that the rotation of the second rotation shaft follows the rotation of the first rotation shaft based on the information from the position detector. Thereby, the moving speeds of the first door and the second door can be synchronized based on information from one position detector.