33results about How to "Accurate calculation accuracy" patented technology

The invention discloses a medical resource scheduling platform, which comprises a medical resource distribution system, and is characterized in that the medical resource distribution system comprisesa medical resource distributor, an operation module and a plurality of medical resource terminals; by means of the distribution system, medical resources can be scheduled and matched systematically through an online mode by means of the Internet, and therefore the medical resource matching efficiency and accuracy are improved; furthermore, the platform also comprises a doctor-side identity authentication system, so that the authenticity and efficiency of doctor identity authentication can be improved; furthermore, the platform comprises a search matching system, so that a doctor can search a matching result more accurately.

The invention discloses a charging accuracy diagnosis method and device and a chip. The charging accuracy diagnosis method comprises the steps of obtaining a request current value when a battery management system requests a current from a charging pile in a designated charging stage of the battery charging process; obtaining a feedback current value output by the charging pile in response to the battery management system; and on the basis of the request current value and the feedback current value, calculating an output current accuracy value of the charging pile in the designated charging stage. According to the charging accuracy diagnosis method and device and the chip disclosed by the embodiment of the invention, the output current accuracy of the charging pile can be accurately judgedin the battery charging process.

An embodiment of the present invention provides a method and device for detecting a supercapacitor in a pitch system. The method includes: obtaining the output current of the charger in the pitch system at the initial moment of charging to the supercapacitor by using the PID algorithm and the subsequent process , the control input used by the PID algorithm is the voltage deviation between the given voltage value and the actual voltage value of the supercapacitor, the given voltage value is a fixed value, and the voltage deviation at the beginning of charging is 0; according to the output current and the PID The control logic of the algorithm calculates the voltage deviation, and takes the change of the voltage deviation as the change of the actual voltage of the super capacitor during the charging process; it is calculated according to the change of the actual voltage of the super capacitor during the charging process and the output current in the corresponding time period The capacitance of the supercapacitor. The solution provided by the invention can quickly, conveniently and accurately detect the capacity value of the supercapacitor in the pitch system of the wind turbine, and the detection process does not need to be stopped, and online detection can be realized.

The invention discloses a vehicle cooperative lane change method based on an artificial neural network and a system of the vehicle cooperative lane change method. The vehicle cooperative lane change method comprises the following steps of: S1, performing lane change data acquisition and lane change demand judgment; S2, performing game income calculation; S3, performing driving style score calculation; S4, performing weight adjustment; and S5, making a lane change decision. According to the vehicle cooperative lane change method disclosed by the invention, through the quantification of a vehicle driving style, game incomes are adjusted, so that an unmanned automobile can have the behavior ability of human, accidents caused by that the unmanned automobile does not understand a human driving style are avoided, and the traffic efficiency is optimized to the best efforts at a low cost of calculation time under the premise of guaranteeing safety.

The invention discloses a method for determining the passive intermodulation amount of a mesh reflector antenna. The steps are as follows: establishing an equivalent model of the mesh reflector antenna; respectively loading carrier signals to the equivalent model of the mesh reflector antenna to obtain the surface Current distribution; calculate the overlap voltage of the mesh reflector antenna equivalent solid surface antenna model; establish the passive intermodulation analysis model at the wire overlap, and obtain the intermodulation current of each order; select the ml space on the mesh reflector sampling points, and calculate the passive intermodulation quantities of the corresponding ml spatial coordinate sampling points on the equivalent solid surface antenna model. The invention solves the technical problem that the passive intermodulation amount of the electric large-scale mesh reflector antenna cannot be obtained through calculation and analysis.

The present invention relates to a gas treatment method, specifically to a method for production regulation of a chelated iron desulfurization process. According to the method, solid phase impurities and liquid phase impurities are removed from hydrogen sulfide-containing raw material gas through an acid-gas separator, the obtained material sequentially passes through a pre-absorption tower and an absorption tower, and reacts with the chelated iron barren solution so as to remove the hydrogen sulfide gas, and the purified nature gas enters a purified gas separator to remove water, is subjected to measurement detection, and then is directly and externally output. With the method, normal use can be achieved even when the hydrogen sulfide content in the raw material gas is changed, and production requirements can be met through adaptable regulation of other parameters according to the method so as to avoid regulation of the production process. In addition, according to the actual situation requirements of the production, the optimal desulfurization solution circulation amount is selected so as to reduce equipment loss, reduce pump power consumption and avoid waste of energy sources.

The invention relates to a FPGA (Field Programmable Gate Array) implementation device for solving least square problem based on Cholesky decomposition, which is suitable for solving the least square problem and settles the problem that computation efficiency of PC (Personal Computer) cannot satisfy real-time and embedded applications; the device comprises a to-be-solved matrix input interface module, a decomposing module and a solving module, wherein an output end of the to-be-solved matrix input interface module is connected to an input end of the decomposing module, and the output end of the decomposing module is connected to the input end of the solving module in order to satisfy real-time, low-consumption and embedded applications.

The invention discloses a calculation method of optimal self-rotational angular velocity for fixed-axis rotation of a service spacecraft. The calculation method comprises steps of firstly carrying out Fourier transform on the measured gesture quaternion of an object to obtain three characteristic angular frequencies of object movement; using the filtering method to allow the estimation values of the angular frequencies to be quite accurate; and finally, multiplying the characteristic angular frequency with the biggest effect with 2 to obtain the optical angular velocity of the rotation of the service spacecraft. According to the invention, through the designed self-rotating angular velocity, the service spacecraft is allowed to rotate, so the relative angular velocity and the relative linear speed between the service spacecraft and the object can be effectively reduced, load during capturing of a mechanical arm is reduced and safety of on-orbit services in the space is improved; and in addition, although the service spacecraft carries out fixed-axis rotation, the designed self-rotating angular velocity is not only defined in objects carrying out fixed-axis rotation, so for objects rolling over along the three axes, the relative angular velocity can be also effectively reduced.

The embodiment of the present invention provides a steam turbine regulation system and method that introduces overshoot peak correction. The embodiment of the present invention adds an overshoot peak correction module and / or initial The step delay module is used to eliminate the influence of the generator side on the model parameters of the steam turbine regulating system and the influence of the volume delay of the steam chamber in front of the high-pressure cylinder on the quality parameters, so that the power model curve after parameter identification is more accurate than the actual load, and can make the The quality parameters are up to standard. The embodiment of the present invention also adopts the improved PSO intelligent optimization algorithm, so that the calculation precision is more accurate and the adaptability to the model is wider.