93results about How to "High precision computing" patented technology

The invention discloses a saturation flow rate calculating method for an urban road intersection. The method includes collecting traffic data of the urban road intersection; performing pre-treatment on the traffic data and storing result data obtained through the pre-treatment; performing real time calculation according to a Grubbs algorithm and storing average time headway of the urban road intersection in single cycle; according to a K-means clustering algorithm, performing clustering analysis on the average time headway of the urban road intersection in single cycle in identical weather conditions and acquiring a clustering analysis result; calculating the mean value of time headway in a saturation condition and acquiring the saturation flow rate of the urban road intersection in different weather conditions. The method provided by the invention improves precision of the saturation flow rate of the urban road intersection in different weather conditions.

The present invention provides a system for analyzing a time series signal by a method of Chaos Theory and calculating a chaos theoretical exponent value. It is a chaos theoretical exponent value calculation system comprising: a means for receiving an input of predetermined parameters, a means for reading a time series signal, a means for cutting out from the read time series signal a time series signal for each processing unit x=x(i), a means for calculating a chaos theoretical exponent value of the read time series signal, and a means for outputting a chaos theoretical exponent value of the calculated time series signal, wherein the means for calculating a chaos theoretical exponent value comprises: a means for calculating a chaos theoretical exponent value for a sampling time in a time series signal of the cut-out processing unit x=x(i), and a means for calculating, based on the chaos theoretical exponent value for the sampling time, a chaos theoretical exponent value of a time series signal for a predetermined time.

An electric power supply system for a vehicle includes a first battery, a second battery connected in parallel with the first battery, a voltage sensor configured to detect a voltage value of the second battery, a current sensor configured to detect a current value of the second battery, an electronic control unit configured to make a voltage of the alternator fluctuate according to a predetermined voltage waveform, and calculate internal resistance of the second battery using the voltage value and the current value of the second battery respectively detected by the voltage sensor and the current sensor while the electronic control unit is making the voltage of the alternator fluctuate according to the predetermined voltage waveform.

The invention relates to a lightweight privacy protection generative adversarial network system; an entity comprises a data provider DS, a service provider SP, a first edge server S1 and a second edgeserver S2, and software comprises an LP-GAN security computing framework; the LP-GAN security computing framework comprises a security generation model SG and a security discrimination model SD. According to the invention, dual privacy of data and models of users can be ensured.

The invention discloses a two-dimensional body magnetic field value calculation method which comprises two main steps, namely complex two-dimensional body model expression and rectangular model magnetic field calculation. Under specific complex two-dimensional body model expression mode conditions, a rectangular two-dimensional body magnetic field overlapping model is established, according to a designed weighting coefficient calculation equation, a rapid one-dimensional discrete convolution algorithm is adopted, and unification of efficiency and precision of magnetic field calculation is achieved. By adopting the method, the problems that a conventional two-dimensional body magnetic field value calculation method cannot simultaneously ensure calculation efficiency and calculation precision and requirements of fine inversion imaging of large-scale magnetic field data magnetic susceptibility and man-machine interaction modeling and interpretation cannot be met can be solved.

The present invention acquires the number of days of a menstrual cycle and of a high temperature phase during the menstrual cycle of multiple women (S1). On the basis of whether or not the number of days of the menstrual cycle of the women is within a predetermined range and whether or not the number of days of the high temperature phase of the women is within a predetermined range, the women are categorized into a specific type in which the number of days of the menstrual cycle is unstable but the number of days of the high temperature phase is stable, and one or more types other than the specific type (S2). When categorized into the specific type, the expected date of the start of menstruation is calculated by adding the number of days based on the number of days of the high temperature phase to the woman's last ovulation day (S6). On the other hand, when categorized into a type other than the specific type, the expected date of the start of menstruation is calculated on the basis of the date of the start of the last menstruation and the number of days of the menstrual cycle of the woman (S4).

Provided is a weighing scale with a balance measurement function, which enables an examinee to place his or her feet on a predetermined position on a mounting plate for positioning. The weighing scale has: more than three weight sensors (1), which are arranged under the mounting plate (71); a calculation mechanism, which calculates and obtains the two-dimensional weight value according to the weight value measured by each weight sensor (1). a position of the center of gravity; and a display mechanism (3), which displays the position of the center of gravity obtained by the calculation means on a coordinate plane (31) for display, wherein, on the upper surface of the mounting plate (71), the recessed setting or protruding A foot positioning unit (9) is provided for positioning the front, rear, left and right of the subject's feet.

The invention provides a machine tool thermal displacement correction method and a thermal displacement correction device. Disclosed is a machine tool thermal displacement correction method comprising an inspection point information acquisition process (60) for acquiring thermal deformation positions in at least three inspection points which are set on a support body (10); an approximate curve calculating process (52) for calculating an approximate curve (C) of a deformed shape of the support body (10) on the basis of the thermal displacement positions at the inspection points; a correction value calculating process (53) for calculating a correction value (Rz) for a command position for a movable body (20) on the basis of said command position and the approximate curve (C); and a correction process (56) for correcting the command position for the movable body (20) by means of the correction value (Rz).

The invention relates to a gate flow cross section flow measurement method, and belongs to the technical field of water conservancy gate flow measurement. According to the technical scheme, within the coverage range of detection beams of a Doppler vertical profile flow velocity sensor, a flow velocity detection point comprises vertical flow velocity below the lower edge of a flashboard, namely within the opening range of the flashboard, and also comprises vertical flow velocity above the lower edge of the flashboard, namely beyond the opening range of the flashboard; a gate measurement and control instrument (7) determines the opening degree of the gate, namely the position of the lower edge of the flashboard through the gate level sensor (5) so as to determine that the lower edge and below of the flashboard are effective flow velocity measurement points to participate in flow velocity calculation, the upper edge of the flashboard is invalid flow velocity measurement points, and the measured flow velocity value is thrown away; and stratified flow measurement is carried out in an effective flow measurement range. The method has the beneficial effects that layered flow measurement is carried out in an effective flow measurement range, the influence of turbulent flow above the lower edge of the flashboard on the lockage flow velocity is avoided, continuous online measurement of the lockage flow can be realized, the lockage flow can be calculated with high precision, and management of a management department is facilitated.

The present invention provides a polarization axis detector, a polarization measurement device and method, and a polarized light irradiation device. The light from a light source changes with the illuminance of time, the polarization axis of the polarized light may be measured with a high precision. The polarization axis detector comprises a first polarized light detection part (311) having a rotary detection polarizer (311a) configured to detect the polarization axis and a first illuminance sensor (311b) configured to detect the illuminance information of the polarized light from the light source through the detection polarizer (311a); and a second polarized light detection part (312) arranged in parallel with the first polarized light detection part (311) and having a second illuminance sensor (312a) configured to directly detection the illuminance information of the polarized light from the light source. The polarization measurement device is configured to calculate the polarization property of the polarized light from the light source according to the illuminance information detected by the first polarized light detection part (311) and the illuminance information detected by the second polarized light detection part (312).

[Problem to be Solved] Accurate recording is achieved by obtaining each optimum pulse width and pulse edge position in a recording method that performs recording according to the rules of recording waveform using different pulse widths and pulse edge positions for individual data length sets with respect to the data length sets having the different relationship between the number of pulses and the data length. [Means for Solving the Problem] The first trial write process obtains an optimum recording power of a test pattern (S1 through S3) even with respect to data having different rules for the recording waveforms corresponding n type data length sets, and the second trial write process using this optimum recording power obtains optimum pulse width or optimum pulse edge position separately for each data length set (S4 through S6). Based on the optimum recording power and optimum recording waveform obtained by these trial write processes, recording operation is performed so as to form all the data lengths with satisfactory accuracy, thereby making it possible to obtain a proper reproduced signal.

The invention relates to a winding core manufacturing device, comprising: coiling device (22) for winding the metal strip (SS) between winding frame (10) and coiling strips (13) to wind the winding core (23); metal strip supplying machine (29) for sending the metal strip to supply roller (25); clipper (40) installed between the coiling device and metal strip supplying machine and cutting the metal strip without stopping it. The metal strip supplying machine is controlled to send metal strip at the speed equal to coiling speed of metal strip of the coiling device. When the metal strip supplying machine supples the metal strip of preset length, the said metal strip is cut by clipper for unit metal strip to continuously wind the winding core. The cut length is calculated based on the thickness of metal strip calculated by strip length of each revolution of the winding frame. Therefore, the invention can produce a number of iron core of high quality with proper clearance between each butt-joint part or lapping amount.

The invention discloses an artificial intelligence chip-based wearable biological information monitoring system and method. The device comprises an analog front-end circuit module, a digital front-endmodule and a system on chip (SOC); the analog front-end circuit module generates a voltage pulse for exciting an ultrasonic transducer, receives an echo electric signal collected by an ultrasonic area array transducer, and performs impedance matching on the echo electric signal, and after undergoing amplification and analog/digital conversion, the echo electric signal after undergoing impedance matching is input into the digital front-end module; the SOC carries out different operation on the biological information original data according to an imaging purpose and an imaging mode to obtain animaging region of interest and key structure points, and a control instruction is output to the digital front-end module; after the digital front-end module receives the control instruction output bythe SOC, echo signals of required imaging points are collected, and dynamic beam forming is carried out on the echo signals; and beam-formed signals undergo filtering, quadrature demodulation, batchprocessing and flow velocity estimation, ultrasonic image reconstruction and real-time imaging are realized.