129results 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 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 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 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 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 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 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 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.