46results about How to "Reduce life cycle costs" patented technology

The invention provides an equipment system fault integral diagnosis method and device. An integral diagnosis technology is applied to an equipment system, the important performance parameters of safe and critical functions of the equipment system and the state of each equipment and filed replaceable module can be monitored, when the fault occurs, on-line technical data is used, in addition, the fast detection and isolation on the fault is realized in a test mode, the fault diagnosis scene process is recorded in real time and is repeated through the fault recording and repeating function, and relevant contents such as fault data information and processing methods are recorded and stored through a built fault data database. The method and the device provided by the invention has the advantages that the goal of economic and effective detection and non-fuzzy isolation of equipment system fault can be realized, the task requirements can be met, meanwhile, data and experience are accumulated for the subsequent test and maintenance through recording and storing the fault information, and the combat readiness completeness, the task success performance and the safety of the equipment system are improved.

The invention discloses a method and device for identifying failure modes of software, and relates to the technical field of the internet. The method comprises the steps that a preset requirement model of the construction software is divided into a software external interface model, a software function model, a software working state model and a software system dependence relation model; the independent function failure mode of the software, the function combination failure mode of the software and the state transition failure mode of the software are analyzed on the basis of the models; software failures caused by software working state conversion and multiple function combinations are fully embodied, the software failure modes can be analyzed comprehensively, and the method has the advantages of being universal, easy to popularize and capable of being copied. Therefore, real causes and potential threats of the software failures are found in the software development process, the improvement of the safety design level in the software development stage is effectively promoted, the pertinence and the effectiveness of correction measures are enhanced, the safety of software products is improved, and the equipment damage caused by the software failures and the cost of the life cycle of the software are reduced.

The invention relates to a switching power supply with a testability function and a testing method thereof and belongs to the field of power supplies. The switching power supply with the testability function is used for solving the problems that during power failure, the manual testing process is complicated, the testing time is long, the maintenance support is difficult, the maintenance cost is high and the like caused due to the fact that the existing switching power supplies do not have testability. According to the switching power supply and the testing method thereof, the switching power supply is universal, eight test points are selected from the switching power supply, four test points are selected from the primary side of a transformer, four test points are selected from the secondary side of the transformer, eight voltages are processed and then are transmitted to a processor, judgment is carried out sequentially on TP4, TP5, TP1-TP2-TP3 (side by side in a group) and TP6-TP7-TP8 (side by side in a group), failure information is obtained easily and is displayed on a display, and then, maintenance personnel can quickly and accurately diagnose failure and isolate components and devices which are in failure, so that the workload of human judgment is reduced greatly.

The invention provides a virtual simulation test method. The virtual simulation test method comprises constructing a test model and performing failure analysis on the constructed model. The virtual simulation test method is feasible and effective in the evaluation of modeling analysis of a product testability design, and can be used for evaluating the product testability design in related fields, so that the testability design is improved; the inherent testability of products is improved; and valuable suggestions are given to further failure diagnosis of equipment and optimization of an existing test method. Through implementation of the virtual simulation test method, the failure detection and isolation time can be shortened greatly, so that the maintenance time is shortened greatly; technical requirements on maintenance personnel are lowered; the task reliability is improved; the use efficiency of a system and the equipment is increased; and the cost in a life cycle is lowered. A failure detection rate (FDR) can be up to 95-98 percent; a failure isolation rate (FIR) can be up to 95-99 percent (isolation to a single LRU); and a false alarm rate (FAR) can be up to 1-5 percent.

The invention discloses an industrial intelligent optimization energy-saving system based on cement kiln fault diagnosis, and belongs to the technical field of energy management and energy conservation. The method mainly solves the problems that an existing rotary kiln fault detection means excessively depends on experience, and the fault detection means is low in accuracy. The system is mainly characterized by consisting of a parameter acquisition subsystem, a knowledge base management subsystem, a fault diagnosis subsystem and a statistical analysis subsystem; the parameter acquisition subsystem comprises a sensor and a data interface; the knowledge base management subsystem has three functions of knowledge base establishment, knowledge base updating and knowledge base query; the fault diagnosis subsystem comprises an inference engine, an interpreter and a man-machine interface; and the statistical analysis subsystem is used for summarizing and counting fault information for a periodof time and analyzing fault abnormal points, so that a basis is provided for improving the intelligent degree of equipment inspection. The method has the characteristics of parameter information acquisition, fault diagnosis and statistical analysis, and is mainly used for fault diagnosis of the cement kiln.

The invention relates to a temperature controller, in particular to a large-LCD (Liquid Crystal Display) touch-type programmable temperature controller. The hardware structure of the large-LCD touch-type programmable temperature controller comprises an MCU (Microprogrammed Control Unit) main control circuit, wherein a power supply circuit and a keying circuit are connected to the MCU main controlcircuit, a crystal oscillator circuit and a man-machine display circuit are also connected to the MCU main control circuit and the MCU main control circuit is connected through connecting circuits ofan upper circuit board and a lower circuit board for controlling an output interface circuit. According to the invention, the need of current society for an environment-friendly and energy-saving temperature controller is met, potential safety hazards in the use of the temperature controller are lessened, the reliability of the temperature controller and a control system to which the temperature controller belongs is improved, a user can adjust needed parameters according to personal desires, user experiences are improved, and the requirement on a user for the individualized adjustment of a target temperature in practical applications is met.

The invention discloses a full-flexible asphalt pavement structure design method, belongs to the field of asphalt pavement structure design in road engineering, and aims to solve the technical problem that the existing asphalt pavement structure design is disjointed from material design. According to the technical scheme, the method specifically comprises the steps of S1, determining the accumulative equivalent axis number Ne within the design age limit of a full-flexible asphalt pavement structure, and preliminarily planning the pavement structure; S2, testing and calculating the asphalt concrete complex modulus of the horizon, and constructing an asphalt concrete fatigue model; S3, according to an asphalt concrete strain allowable value calculation formula, calculating an asphalt mixture layer bottom flexural-tensile strain allowable value epsilon t-allowable; S4, calculating a roadbed top surface compressive strain allowable value epsilon z-allowable according to a roadbed top surface compressive strain calculation formula; S5, determining a bending-tensile strain calculation value epsilon t-calculation and a soil-based compressive strain calculation value epsilon z-calculation of a structural calculation layer by applying an elastic layered system theory; and S6, carrying out structure checking calculation by taking the conditions that the bending-tensile strain allowable value epsilon t-allowable is greater than the calculation value epsilon t-calculation of the bottom of the asphalt mixture layer and the compressive strain allowable value epsilon z-allowable is greater than the calculation value epsilon z-calculation of the top of the soil foundation as checking calculation indexes.

The invention discloses a bearing state monitoring and health management system performance test and optimization method and system, and the method specifically comprises the steps: firstly, giving an accuracy index and a robustness index of the bearing state monitoring and health management system performance as evaluation indexes; testing and verifying the performance of the bearing state monitoring and health management system based on the bearing fault data as input and the fault data added with the random interference data; in the edge monitoring system, the actual fault state of the bearing is compared with the monitoring result of the edge monitoring system, and if the accuracy reaches the standard, a threshold value adjusting strategy is used; if the accuracy does not reach the standard, adjusting the strategy by using parameters; in a remote cloud platform system, according to comparison between the actual health state of the bearing and the predicted health state of the model, a parameter adjustment strategy of the model is adopted if the actual health state and the predicted health state of the model are inconsistent, more accurate system performance description can be obtained, and meanwhile edge monitoring system optimization and cloud platform remote system optimization are carried out respectively by optimizing a feedback mechanism.

The invention relates to a method for improving the stability of a coal-bed methane surface drill well. The method comprises the steps that 1, a hydraulic jet drilling device is used for extending a drill well in the earth surface in a coal-bed methane exploitation region; 2, the extending depth is the height of a caving zone of a mine, and the extending diameter is 8-10 times the bore diameter of the drill well; 3, foam concrete is conveyed to the extended section after well extending is completed, secondary well drilling is conducted after the foam concrete is formed, and an outer sleeve, an inner extraction pipe and a screen pipe are mounted after the drill well is formed; 4, an axial deformation device is mounted between the screen pipe and the inner extraction pipe. By means of the method, construction is easy, and cost is low; the stability of the coal-bed methane surface drill well is improved, the coal-bed gas well is free of being influenced by stratum movement during the mining influence period and the post-mining stable period and will not get closed or blocked, the purpose that the coal-bed methane surface drill well has multiple functions can be achieved truly, the utilization rate of the coal-bed methane drill well is increased, and the whole life cycle cost of the coal-bed methane drill well is lowered.

The invention discloses a pavement reinforcement structure. The structure comprises a water-permeable asphalt surface layer, a lower sealing layer and a plurality of semi-rigid base layers, wherein alayer of geonet is arranged between every two adjacent semi-rigid base layers, the number of all the geonets is at least two, auxiliary positioning pieces used for assisting in positioning the positions of the geonets are arranged on the geonets, an Nth semi-rigid base layer is paved, then a layer of geonet is paved by adopting a full paving method, positioning is assisted by utilizing the auxiliary positioning pieces, a lower sealing layer between a lower surface of the water-permeable asphalt surface layer and an upper surface of the top semi-rigid base layer is set, an Mth layer of semi-rigid base layer is laid, and a second layer of gabion box is laid. If necessary, the laying process can be repeated till construction of the semi-rigid base layers is finished. The structure is advantaged in that fatigue, reflection, temperature and differential settlement crack diseases can be reduced, the service life of the pavement is greatly prolonged, the maintenance period is prolonged, so whole life cycle cost of the pavement is lower than that of a non-reinforced pavement.

The invention discloses an urban new energy transportation system with an intelligent management function. The urban new energy transportation system comprises a new energy power supply guarantee system, a urban full coverage charging pile sharing platform, a new energy transportation operation system and an intelligent management service platform and a command center; and a public power grid, a new energy power station, an energy storage system and a mobile power supply jointly form an intelligent energy dynamic balance system. According to the urban new energy transportation system with theintelligent management function, through the investigation and data collection of the actual situation in the field of urban new energy transportation and the combination of the the urban planning, advance prediction and comprehensive analysis are carried out, the systematic planning and design are scientifically made, the system solution that meets the needs of the urban is formulated, the solution is organized to implement independently or in a cooperative way; the new energy vehicle technology, the clean energy technology, cloud data analysis and the intelligent management system are combined, so that a complete monitoring management system and a unique operation mode of a urban new energy vehicle are realized; and a personalized, intelligent and green public transport mode is providedfor users.

The invention belongs to the technical field of an aviation power supply, and relates to a dual-active bridge-based starting power generation system. A 270V high-voltage direct current is used as a power supply mechanism of the starting power generation system, a starting power generator of the starting power generation system employs a high-speed permanent-magnet synchronous motor, and the starting and power generation functions can be achieved by a bidirectional running principle of the motor. A rare-earth permanent-magnet material employed by the permanent-magnet motor has high magnetic energy product, the weight of the motor can be obviously reduced, the volume of the motor is reduced, and meanwhile, the motor is long in service lifetime and high in reliability and maintenance. A high-speed permanent-magnet synchronous motor is mature in technology, digital control is employed, and output torque control of the motor can be achieved; and the starting power generation system has theadvantages of large capacity, high power generation efficiency, small size, light weight, high reliability, low life cycle cost and the like.

The invention discloses a compound material used for a high-speed train and a manufacturing method thereof. A fiberglass strengthening aluminum alloy layer panel with an upper layer and a lower layer of fiberglass is adopted to replace pure aluminum alloy panel in the prior art, and the form of vicarious joint is carried out at the inside of the fiberglass strengthening aluminum alloy layer panelby an aluminum alloy thin plate and a high-strengthening fiberglass reinforced epoxy resin layer plate to realize the continuity of large panels. The compound material of the invention has excellent qualities such as light weight, high intensity, high anti-fatigue property, high impact damage tolerance, high burning resistance property, etc.

The invention discloses a concrete plaited block base layer of an asphalt pavement, which comprises plaited block bodies, the side surfaces of the plaited block bodies are inclined surfaces, and the plurality of plaited block bodies establish an embedding and extruding relationship through the inclined surfaces to form a plaited block base layer plane structure with vertical interlocking and plane interlocking. According to the concrete plaited block base layer, concrete precast blocks meeting certain conditions are defined as braided blocks on the basis of the braiding technology, joints between the blocks can be kept in a tightly attached state by means of the overlying relation between the braided blocks, the joint load transfer capacity of the blocks is improved, the vertical interlocking and transverse interlocking relation can be established between adjacent base blocks, the road base layer is gradually diffused to all the woven blocks under the load action through the combined woven grid structure, an annular rewinding and laminating relation is shown around the centers of net openings of the woven blocks, and the road base layer has plate body stability and has practical significance in the aspects of enhancing the stability of the base layer plate body, preventing reflection cracks of a rigid-flexible composite road surface, prolonging the service life of the base layer, reducing life-cycle cost and the like.

The invention relates to a switching power supply with a testability function and a testing method thereof and belongs to the field of power supplies. The switching power supply with the testability function is used for solving the problems that during power failure, the manual testing process is complicated, the testing time is long, the maintenance support is difficult, the maintenance cost is high and the like caused due to the fact that the existing switching power supplies do not have testability. According to the switching power supply and the testing method thereof, the switching power supply is universal, eight test points are selected from the switching power supply, four test points are selected from the primary side of a transformer, four test points are selected from the secondary side of the transformer, eight voltages are processed and then are transmitted to a processor, judgment is carried out sequentially on TP4, TP5, TP1-TP2-TP3 (side by side in a group) and TP6-TP7-TP8 (side by side in a group), failure information is obtained easily and is displayed on a display, and then, maintenance personnel can quickly and accurately diagnose failure and isolate components and devices which are in failure, so that the workload of human judgment is reduced greatly.

The invention provides a museum structure anti-seismic performance improving method based on cultural relic safety in order to avoid losses and damage of museum collections under the seismic action, and relates to the technical field of structural engineering and the field of museum relic protection. The museum structure anti-seismic performance improving method mainly comprises the steps of determining seismic oscillation input parameters, establishing a main structure finite element model, conducting conventional design and dynamic and time-historical analysis on the finite element model, and conducting adjustment according to the relation between the magnitude of anti-seismic performance-based indexes and an anti-seismic performance-based index limiting value so as to meet requirements and the relevant anti-seismic construction procedures such as anti-seismic construction of structural components and non-structural components, anti-seismic arrangement of exhibition halls and museum collection storage microenvironment construction. According to the museum structure anti-seismic performance improving method based on the cultural relic safety, effective control over the seismic action of the museum collections is conducted in the whole seismic spread process, the risk that large-scale damage is caused to the museum collections by seism is greatly lowered, and the full-life cost of museum buildings is effectively reduced.