130results about How to "In line with the actual use" patented technology

The invention provides a method for estimating a charge state of a power battery with relatively less errors, which includes the following steps: through fitting of measured data, a Ki curve of correction coefficient of charging-discharging efficiency at different rates, a Kw curve of the correction coefficient of the charging-discharging efficiency under different temperature as well as a Kc curve of the correction coefficient of actual electric quantity are obtained and a Kc value can be obtained through a historical record; according to the state of the power, the following formulas are applied: in the working state, Ct = (KCC0 + sigma KiIiti) Kw is applied; in the non-working state and when a self-recovery effect is completed, C = KWKCC0t is applied; in the non-working state and when the self-recovery effect is not completed, Ct = Cm is applied; Ki, Kw, Kc are called from the curves to obtain remaining capacity Ct at the moment of obtaining the power battery so as to complete the estimation of a SOC battery. The invention with easy industrial application of models is applicable to both working state and non-working state of the battery; the errors of the estimation result are relatively less and the relevant curves are established.

The invention discloses a method for estimating the charge state of a power cell, which comprises the following steps that: 1. a continuous state space model capable of expressing the relationship of each element in an expression circuit is obtained by an equivalent circuit model of a power cell; the relationship between the open-circuit voltage and the cell charge state is obtained through the standing experiment of the power cell, and the cell charge state is introduced into the continuous state space model of the power cell as a state variable; the power battery model under the noise environment is obtained by combining the noise information; and finally the continuous state space model is subjected to linearization and discretization so as to obtain a linear discrete state space model; 2. a relationship curve of the open-circuit voltage and the cell charge state is obtained through the standing experiment of the power cell, and a parameter k and a parameter d in the power cell model are obtained approximately; 3. parameters of the power cell model are obtained through the identification of current and voltage data collected by a data collecting system; and 4. the power cell charge state is estimated by utilizing a moving horizon estimation method based on the determined power cell model.

The invention relates to a lithium battery charge state estimating method and belongs to the technical field of batteries of electric vehicles. The lithium battery charge state estimating method aims at estimating the charge state of a lithium battery under the complex working conditions of charging and discharging at different multiplying power levels through an estimation method based on a parameter time varying observer. The lithium battery charge state estimating method specifically comprises the step that a battery charge state is regarded as a state variable to be introduced into a lithium ion battery continuous model, the upper limit of hysteresis voltages is determined according to the charging and discharging open-circuit voltage, the battery hysteresis phenomenon is considered to be a first order dynamic process related to the current absolute value, a battery polarization voltage model with parameters changing along with currents and an internal resistance model with parameters changing along with currents are structured through RC rings, battery model end voltages are structured, and a nonlinear parameter time-varying battery model is obtained. The lithium battery charge state estimating method is based on a parameter time-varying lithium ion battery equivalent circuit model, the model parameters are calibrated to be a function of current multiplying power, the characteristics of the battery can be accurately expressed, and meanwhile an existing estimation method can be easily used.

The invention discloses a calibration device of a laser alignment device and a method for measuring indication errors of the laser alignment device through the calibration device. The calibration device comprises two mutually independent rotation shafts capable of rotating for 360 degrees. One of the rotation shafts is used as a reference shaft and the other rotation shaft is capable of moving, pitching and deflecting in the horizontal direction and vertical direction. By setting the rotation angles of the rotation shafts, and adjusting the horizontal and vertical displacement quantity, pitching quantity and deflection quantity of the other rotation shaft, measurement of the displacement quantity in the horizontal and vertical directions, the rotation angle quantity of an inclinometer and indication errors of alignment deviation of a position sensitive sensor of the laser alignment device can be achieved. According to the invention, operation states of the laser alignment device in actual working processes can be precisely simulated; the standard alignment deviation quantity of measurement shafts can be displayed in a real-time and direct manner; calibration results are quite precise; and operability of the measurement process is quite high.

The invention belongs to the related technical field of foundry technology optimization and discloses a foundry technology parameter optimization method based on a casting defect prediction model. Themethod comprises the steps that defect information reflecting the technology level of a casting as a detected object is automatically extracted, and then defects are subjected to qualitative classification and quantitative management; a data package composed of three parts of multi-source data including production data, technology data and detection data is collected and stored; based on the datapackage, a depth neural network is adopted for establishing and optimizing the casting defect prediction model; an orthogonal test is designed to input a technology parameter combination into the model, a sensibility mechanism of key parameters for hole loose defect evolution is researched, and a key technology parameter optimization window is acquired. By means of the method, the intelligent prediction process of the casting defects can be executed, the multi-source data in the whole foundry technology can be related and applied, the optimization result is obtained by a higher-precision modecorrespondingly, and accordingly the quality of the final casting is improved.

The invention discloses a battery charging management device under the shutdown state and a method thereof, and the method comprises the charging starting management step under the shutdown state and the charging finish management step after full charging. The charging starting management step comprises the following steps: A1 after each time of full charging and switching the power supply switching circuit to the interruption state, timing is started; B1, when the counted time reaches a first time, the electrical source manage circuit controls the electrical switching circuit to be the turn-on state, so as to communicate the battery module with the electrical source. The invention also discloses a method for managing battery charging. The invention facilitates battery charging management to become simple under the shutdown state and realizes the low-power consumption design under the shutdown state.

The invention discloses a space target visibility analysis method based on an STK model. According to the method, the influences of orbit condition of an observed object, sun, moon, installation site of an optical camera, and field angle upon observation are analyzed and calculated, irradiance that the observed object experiences at an observation satellite, and whether or not the observed object can be successfully observed by the optical camera is judged comprehensively. The method is provided for judging whether or not a ground digital simulation space target can be observed.

The invention discloses a whole course cold air preventing control method for a variable frequency air conditioner. The whole course cold air preventing control method for the variable frequency air conditioner is characterized by comprising the following steps: (1) starting in a heating mode, entering a starting cold air preventing function, controlling air speed and when to quit the starting cold air preventing function of an indoor fan through an indoor machine mainboard in an indoor unit electric control box; (2) after the starting cold air preventing function is quitted, controlling the indoor fan to operate at a set air speed of a remote controller by the indoor machine mainboard, and controlling whether the cold air preventing function in the heating operation of the variable frequency air conditioner is effective or not and the air speed of the indoor fan according an indoor ambient temperature TA, a coil pipe temperature TE and a remote controller set temperature TS; when the cold air preventing function in the heating operation is ineffective, operating the indoor fan at the set air speed. According to the whole course cold air preventing control method for the variable frequency air conditioner, the cold air can be prevented during starting and normal heating operation processes; the product comfort degree is high.

The invention discloses a method for realizing IPTV one-user-multi-machine. The method comprises the following steps of: establishing association relationships among one-user-multi-machine accounts; setting service configuration parameters including a service sharing right and a subscription right; and controlling the service application or the service subscription of the one-user-multi-machine accounts respectively according to the established association relationships and the set service configuration parameters when the one-user-multi-machine accounts initiate service application requests or service subscription requests. The invention also discloses a system for realizing the IPTV one-user-multi-machine. Subscribed resources can be fully shared and utilized through proposed service sharing means, the sharing requirements of the one-user-multi-machine accounts can be sufficiently met and the service experience of users is improved.

The invention relates to an L2-L infinity filtering information processing method based on logarithmic quantization for a network control system. The method comprises the following steps: (1) the sending end of the network control system samples, quantifies and encodes an input signal and then sends the input signal to the receiving end; (2) the receiving end decodes the received data and transmits the decoded data to a filter; and (3) the filter filters the received data and restores the original system information. Compared with the prior art, robust L2-L infinity filter processing with performance parameter Gamma of the network control system under disturbing influence is realized, influence factors brought by sampling, quantifying and packet loss in practice are given into full consideration in the design of the filtering information processing method, so that the L2-L infinity filtering information processing method provided by the invention more conforms to the practical application.

The invention discloses a construction method of a pulmonary thromboembolism risk prediction model based on single nucleotide polymorphism, an SNP locus combination and application. The construction method of the prediction model comprises the following specific steps of S1, carrying out sample collection and gene detection; S2, carrying out data quality control and whole genome association analysis (GWAS); S3, carrying out meta analysis by combining the genome data of an external population; S4, screening an SNP locus combination with a prediction value; and S5, building a regression model, and carrying out training and testing. According to the prediction model, 48 SNP site combinations are obtained, at least one SNP site combination can be applied to pulmonary thromboembolism risk assessment or screening products, pulmonary thromboembolism risk prediction of Asian people, especially Chinese people can be achieved, and the detection method is simple, convenient and easy to implementand convenient to use clinically.

The invention relates to a sealing life prediction method for flexible-packaging lithium-ion batteries and belongs to the technical field of sealing life prediction. The sealing life prediction method includes the steps of determining key degradation mechanism and building a bonding interface cohesive zone model based on consideration of degradation effect; determining a degradation trend that environmental degradation factor changes along with stress by building a degradation accelerating model; calculating to obtain a bonding interface strength time model on condition of different stress according to the initial bonding strength; determining a stress time model based on the function relationship between air pressure and time by a simulation method; and finally, predicting the sealing life of the flexible-packaging lithium-ion battery according to the generalized stress strength theory. According to the sealing life prediction method, the influence to the degradation process within the whole life circle of the outer packaging sealing material from the internal pressure of the lithium-ion battery is taken into consideration, variation trend of the sealing performance of the lithium-ion battery in actual use is simulated, the sealing life of the flexible-packaging lithium-ion battery on different environmental conditions can be calculated in theory, and the method has high engineering applicability.

The invention relates to the technical field of lithium ion batteries, and discloses a lithium ion battery aging evaluation method. The method comprises the following steps: dividing a plurality of same lithium ion batteries of which the initial SOC is 100% into two groups, and carrying out an aging test at the same temperature, wherein the calendar aging test group stands for N days, the comprehensive aging test group performs periodic charging and discharging, the cycle condition of each cycle is designed according to the actual use condition of the battery, and the cycle is continued for Ndays; carrying out capacity testing once every M days; respectively calculating the capacity attenuation rates delta[Q] calendar and delta[Q] total of the calendar aging test group and the comprehensive aging test group; and subtracting the delta[Q] calendar from the delta[Q] total to obtain a cyclic aging capacity attenuation rate delta[Q] cycle. According to the evaluation method, calendar agingand cyclic aging can be separately researched, cyclic aging adopts a cyclic working condition which is more practical, an analysis result is more practical, and the evaluation method can be used forestimating the service life of the lithium ion battery, researching an aging mechanism and selecting an optimal operation condition.

The invention provides a login authentication method and device. According to the scheme, the login scene security level is judged by analyzing the login feature information corresponding to the loginbehavior of the user; and finally, the login authentication mode corresponding to the login scene security level of the current login behavior is determined, that is, different login authentication modes are adopted for different login scene security levels, so that the security of the login authentication mode dynamically changing according to the login scene security level is higher. The loginscene security level is determined according to the login characteristic information of the current login behavior and the historical login behavior of the user; and the login scene security level determined in this way better conforms to the actual use condition of the user, so that the determined login scene security level is more accurate, and then the login authentication mode determined according to the login scene security level is safer.

The invention discloses a cleaning and disinfection device for clinical laboratory equipment. The cleaning and disinfection device for clinical laboratory equipment comprises a box body, wherein a pressurization device is installed at the upper end of the box body; the pressurization device is connected with a water storage box through a water outlet tube; the water storage box is installed in the box body, a sealing door is installed at the front end of the box body through a hinge; a control device is arranged on the front end surface of the sealing door; a motor is installed at the upper end of the box body through a support seat; a main shaft of the motor is rigidly connected with a rotary shaft through a coupling; a hanging ring is connected to the upper part of the rotary shaft; a test tube support ring is connected to the lower part of the rotary shaft; and a backflow plate is arranged on the lower part of the box body. The disinfection device integrates the functions of cleaning and disinfection, and is high in applicability; various clinical laboratory equipment can be hung on the hanging ring, pressurized water flows can be sprayed out by side surface nozzles to clean the various clinical laboratory equipment, a test tube support ring is arranged at the bottom and can be washed through high-pressure water flows of test tube nozzles, high-temperature disinfection can be automatically carried out after the washing is concluded; and moreover, the hanging ring and the test tube support ring are driven to slowly rotate by the motor, so that more thorough cleaning and disinfection are achieved.

The invention discloses a device for measuring impedance of a loudspeaker. The device comprises a detector, wherein one end of an output point of the detector is electrically connected with an anode of the loudspeaker to be measured after passing through a power amplifier; the other end of the output point of the detector is serially connected with a sampling resistor and electrically connected with a cathode of the loudspeaker to be measured; the two ends of an input point of the detector are electrically connected with the anode and the cathode of the loudspeaker to be measured respectively; and the two ends of the other input point of the detector are electrically connected with those of the sampling resistor respectively. The invention further discloses a method for measuring the impedance of the loudspeaker. The device and the method are convenient to operate and accurate in measurement results.

The invention discloses a testing apparatus for testing the air permeability of a high barrier film. A low-pressure chamber of the testing apparatus is in a double-layered sealed structure formed by two sealing layers of an inner sealing chamber and an auxiliary sealing chamber. Two low-pressure chamber needles are connected in series in a pipeline, wherein the inner sealing chamber communicates with a vacuuming apparatus through the pipeline. A pipeline communicating with the auxiliary chamber is connected with the communicating pipeline between the two low-pressure chamber needles. A gas source valve and an isolating valve are insulated from a communicating pipeline between neighboring high-pressure needles by using a heat insulation material. The isolating valve and an emptying valve are insulated from a communicating pipeline between neighboring low-pressure needles by using a heat insulation material. A testing container and a heat insulation pipeline communicating with the testing container are placed in a heat insulation shield.

The invention provides a quick-response linked target system and relates to a KL-II type quick-response linked target system, belonging to shooting practice equipment characterized by pure mechanical linked action. Targets in the system can be used for separate shooting practice and linked shooting practice, namely precision shooting practice and quick linked shooting practice; and the accurate judgment capability and quick-response capability of trainers can be improved during practice. Moreover, the system has a better ornamental value and is suitable for various exercises and performance occasions. The system comprises an up / down type steel plate head target, a short-distance running target, a swing target, a quick double-click target and a trigger mechanism. The system is of a pure mechanical structure; and when the system is in a linked state, all the targets share the same trigger mechanism; except that the up / down steel plate head target serves as the first target, the short-distance running target, the swing target and the quick double-click target can be used as different modules; and according to the shooting demands, the positions and triggering sequences of all the targets can be combined at random or each target can be regarded as an independent unit and separated from the system to be used for separate specialized training.

The invention discloses a network node selection method and device and a storage medium. According to the invention, the method comprises the steps: taking the terminal user information obtained fromthe service request initiated by the terminal user as the dimension information for selecting the target node, and selecting the target node according to the terminal user information and the node network quality mapping table pre-constructed based on any user dimension; determining which network node is selected as a target network node according to the business index mode values recorded under each network node under the dimension information corresponding to the terminal user information, so as to select the network node according to different business indexes without additionally deployinga monitoring machine, and selecting the target network node according to the multi-dimensional division standard, so the selected target network node is more suitable for providing service for a terminal user.

The invention discloses an anti-seismic experiment device for assembled bridge engineering. The device comprises a base, a movable seat and a first mounting bin, wherein a fixed bin is fixed to the middle of the top of the base, a second gear ring is mounted on the outer side of the fixed bin, the movable seat is arranged in the fixed bin, and first annular sliding grooves are formed in the two sides of the top of the base. According to the anti-seismic experiment device for the assembled bridge engineering, the first gear is in meshed connection with the second gear ring and a first gear ring; the first gear ring and a second gear are in meshed connection; a first motor drives a second rotating shaft to rotate; a first rotating shaft can continuously perform planetary motion along with the first rotating shaft, and then the movable seat is driven to shake in multiple directions, so that a multi-direction vibration experiment can be performed once, a bridge model on the placement platecan be driven to further vibrate in multiple directions, the actual use condition is better met, and a more comprehensive experiment can be performed.

The invention belongs to the field of mechanical design and provides a prediction method of flexible-packaging lithium-ion battery packaging stress. The prediction method includes five steps of firstly, determining a battery temperature profile; secondarily, determining a cell gas-generation model; thirdly, determining a packaging mechanical property degradation model; fourthly, determining a packaging stress model; fifthly, predicting the packaging stress. The status of only the packaging safety performance testing methods exist at present is changed, increase of gas generation, degradation of packaging material performance, increase of volume and the like of the flexible-packaging lithium-ion battery which are caused along with time change are all taken into consideration, the curve, changed along with time, of the obtained stress value can be achieved, the stress value at different time interval can be predicted, and thus, a powerful support for the mechanical design of the flexible-packaging lithium-ion batteries is provided.

The invention relates to a matching method for a heat accumulating type electric heating load and a power distribution network court. The method comprises the following steps of 1, establishing a minimum heat load demand calculation model of a user in each time period, and screening and determining a possible start-stop strategy of user equipment by combining a start-stop control strategy of heataccumulating type electric heating equipment and a heat accumulating amount calculation model of a heat accumulating electric heating heat storage tank in each time period; and 2, establishing a heataccumulating type electric heating load response optimization model aiming at stabilizing a total load curve of the power distribution network court and reducing the peak-valley difference, and searching an optimal start-stop control strategy as a matching method of the heat accumulating type electric heating load and the power distribution network court based on the screened and determined possible start-stop strategy of the user equipment in the step 1. According to the method, the interaction mode between heat accumulating type electric heating and a power distribution network can be improved through a direct load control manner, so that the advantages of the heat accumulating technology can be brought into full play and the heat accumulating type electric heating equipment can be popularized and used in a large range.

The invention relates to the technical field of pulpers, and discloses a pulper cleaning device for solving the problem of shredded paper adhering to the inner wall. The pulper cleaning device comprises a shell, wherein a bin body is fixedly connected to the position below the shell. Water in a water tank is sprayed out through spray heads under the action of pressure by utilizing the change of pressure intensity, so that automatic water spraying is achieved; used and filtered water is recycled by virtue of the action of negative pressure, so that the utilization rate of the water is increased, the water consumption for cleaning is reduced, energy conservation and environmental protection are achieved, and the actual use condition is better met; meanwhile, the magnetic induction line cutting principle is utilized, and the comprehensive cleaning operation is triggered, so that the linkage between structures is increased, and a high degree of automation is achieved; through the combined action of the bin body, a rotating disc, a sleeve set, a rotating column, rotating assemblies, the spray heads and a seat frame, the positions of the spray heads are automatically changed, and the spray heads intermittently move up and down while rotating, so that the water distribution face is increased, comprehensive cleaning is achieved, operation is convenient, and two hands are liberated; and manual intervention is reduced, so that the working efficiency is higher.

The invention discloses a vehicle controller, a vehicle and a method and a device for calculating the range of the vehicle and the range of the vehicle. The method comprises the following steps: periodically collecting vehicle running parameters, ambient temperature and the range of the vehicle in the driving process; Establish the corresponding relationship among the collecting time, vehicle driving parameters, ambient temperature and mileage, and get the two-dimensional decision table; The vehicle driving parameters, ambient temperature and mileage in the two-dimensional decision table are discretized to obtain the two-dimensional decision table after discretization. The data values of vehicle driving parameters, ambient temperature and endurance mileage in the discrete two-dimensional decision table are reduced respectively, and the reduced two-dimensional decision table is obtained. The data values of the factors related to the mileage strength and the mileage data in the reduced two-dimensional decision table are respectively extracted by rules, and the corresponding relationship between the factors related to the mileage strength and the mileage is obtained, so that the calculated mileage is more in line with the actual situation.

The invention provides a method for correcting errors of measured data in the horizontal light beam irradiation direction of an automobile headlamp detector. The method is mainly suitable for conducting full-automatic detection on an automobile headlamp in an automobile performance detection station. A system is composed of a binocular camera installed right ahead a stall to be detected, a computer and the headlamp detector. Automobile body feature points of automobile images are detected through a morphological image processing method and Hough transformation, sequences of three-dimensional coordinates of the feature points are fitted, the automobile driving direction is acquired, the angle deviation between the driving direction and a driving guide line is analyzed, and the measured data in the horizontal light beam irradiation direction of the headlamp detector are corrected. The method can automatically correct the errors of the measured data of the automobile headlamp, the accuracy of the detection result and measurement repeatability are improved, and guarantees are provided for safety driving of an automobile at night.

The invention discloses a method of testing anti-skid brake control device vibration response. A force hammer method and an electric vibration table testing method are adopted respectively for actual measurement. When the electric vibration table testing is adopted, testing is carried out in a used maximum and minimum vibration value range, a two-angle method, a four-angle method and the electric vibration table testing method are adopted sequentially for gradually correcting a vibration calculation model for the anti-skid brake control device, the actual using condition of the anti-skid brake control device is met, the precision of a finite element vibration calculation model is improved, and the error of the calculation model after the vibration calculation model is corrected is smaller than 3%.

The invention relates to office chair mechanical performance testing equipment, which comprises a supporting frame, a motor set, a screw set and an execution mechanism, wherein the execution mechanism comprises a cushion testing rod, a backrest testing rod and two handle testing rods, the cushion testing rod comprises an electric cylinder, a telescopic rod, a first connecting member, a connecting rod and a buttock imitating cushion which are connected in sequence, the backrest testing rod comprises an electric cylinder, a telescopic rod, a second connecting member and a back imitating cushion which are connected in sequence, each handle testing rod comprises an electric cylinder, a telescopic rod, a third connecting member and a hand imitating frame which are connected in sequence, and the first connecting member, the second connecting member and the third connecting member are of an S-shaped central symmetric structure integrally. The office chair mechanical performance testing equipment can be used for conducting mechanical texts on office chairs of different models, and the execution mechanism is provided with different connecting members, thus the effect of fully imitating the structure of a human body is achieved.

The invention discloses a novel emergency rescue and nursing device which comprises a box body. An operation table is arranged at the upper end of the box body. An electricity storage device is fixedly installed on the lower layer of the box body. A medicine tank is arranged at the front end of the electricity storage device. A disinfecting device is arranged at the right end of the medicine tank. A breathing auxiliary device is arranged on the upper side of the electricity storage device. An object storage drawer is arranged on the upper side of the breathing auxiliary device. A push rod is welded to the left side of the box body. An upper supporting plate is welded to the upper end of the box body. A protection door is hinged to the right side of the box body through a hinge. An object temporary storage area is arranged on the inner side of the protection door. Due to the breathing auxiliary device, oxygen can be provided for a patient in emergency; due to the operation table, medical staff can conveniently operate and process medicine, bandages and the like; due to the object temporary storage area, a doctor can conveniently and rapidly take up and put down medical items, use is convenient, rescue efficiency is greatly improved, the actual use conditions are met, and promotion and popularization are facilitated.

The invention particularly relates to a global traffic control method and system for interface call in a distributed environment. The method comprises the following steps: generating a target service call command; receiving the target service call command, and obtaining a preset call number threshold of a target service; querying a called number table that is pre-established and continuously updated, and obtaining the called number of the target service; and when the called number is smaller than the preset call number threshold, calling the target service from a service providing module. According to the global traffic control method and system for interface call in the distributed environment disclosed by the invention, whether the target service is allowed to be called can be judged by comparing the called number of the target service with the preset call number threshold, and thus the purpose of limiting the interface traffic and the global traffic can be achieved, the stability of a distributed system can be improved, and the crash of the distributed system can be effectively prevented.

The invention relates to the technical field of cosmetics, and discloses an automatic cosmetic storage device based on the electromagnetic induction principle. The device comprises a shell I and a shell II, wherein a partition plate is fixedly connected to the exterior of the shell I, a connecting rod is movably connected to the interior of the partition plate, an N pole is movably connected to the interior of the shell I, an S pole is movably connected to the interior of the shell I, a spring I is movably connected to the interior of the shell II, a sliding rail is movably connected to the top of the spring I, a buckle is movably connected to the interior of the sliding rail, and a spring II is movably connected to the interior of the sliding rail; under the interaction of the shell I, the shell II, the partition plate, the connecting rod, the N pole and the S pole, when a user sits outside the shell I, a cosmetic carrying table behind can be triggered to ascend, and when the user leaves, the cosmetic carrying table can also be a triggering condition for assisting in closing, so that the device better conforms to the actual use condition of the user, and the triggering is more sensitive.