55 results about "Pulse computation" patented technology

When a driver of a vehicle brings his / her detection part close to a case, a sensor detects a pulse of the driver at the detection part with an optical method, and takes an image of the detection part. An individual certification means determines whether the driver of the vehicle is an authorized person or not based on the image of the detection part taken by the sensor. An alcohol concentration determiner calculates an index value of a blood alcohol concentration of the driver based on the pulse detected at the detection part by the sensor, and determines whether the index value exceeds a criterial value of a drinking assessment. When it is determined that the driver of the vehicle is an authorized person and the index value does not exceed the criterial value of the drinking assessment, a permission means permits the driver to start an engine of the vehicle.

A rotary electronic display panel and a driving method thereof. The rotary electronic display panel turns on or off each LED at the correct position regardless of the change in the rotation speed of the drive motor, and displays text and image data correctly and sharply without using expensive encoders, thereby reducing product cost and improving product quality. price competitiveness. The rotary electronic display panel includes: a driving motor for rotating a rotating shaft at a predetermined speed; a rotating body connected to the rotating shaft to rotate at a predetermined radius of rotation; an LED array provided on the rotating body; an origin pulse a generator that generates an origin pulse when the rotating body rotates one revolution; a line pulse generator that uses the origin pulse to calculate the rotation period of the rotating body, and generates a plurality of line pulses, each line pulse having a value corresponding to the a period of a resultant value obtained by dividing the rotational period of the rotating body by the number of effective areas separated along the rotating radius of the rotating body; and a controller for generating a control signal to selectively turn on or turn off the LED array, The desired text and image data are thus displayed at the generation of each line pulse.

An oil-saving prompting method for car includes such steps as storing a calculation module for the rotation speed of engine and car speed, the car speed-gear position reference table A, car speed flag bit inquiring table B and gear position inquiring table C in computer, acquiring pulses about the rotation speed of engine and car speed, calculating the rotation speed V0 and car speed V1, storing them in RAM, calculating speed varying ratio B, searching relative standard speed varying ratio X from table C, searching relative gear position D1, storing it in RAM, searching standard car speed V2 from table B, searching relative car speed flag Z, changing the Z from 0 to 1, Changing the relative flag Z in table A from 0 to 1, searching gear position D2, comparing D1 with D2, not prompting if D1=D2, or detecting interrupt signal if not, and prompting for increasing gear position if there is no interrupt signal and D1 is less than D2.

A physical quantity measuring method includes: (a) generating a synchronized input signal from an input signal, wherein the synchronized input signal is synchronized with a reference clock; (b) measuring a total number (Nsum) that is the sum of pulses of the reference clock included in each of n units of the synchronized input signal; (c) generating 2n deviation signals based on a delay of the synchronized input signal with respect to the input signal; (d) generating a deviation integration signal by subtracting the total values of n rear-half deviation signals from the total values of n front-half deviation signals; (e) converting the deviation integration signal into a number of pulses of the reference clock; and (f) calculating the average number (Nrave) of pulses of the reference clock included in one unit of the input signal, based on the total number (Nsum), the number (dNsum), and the number n.

The invention discloses a floating frequency difference regulation and variable rate load instruction modification-based primary frequency regulation method, and relates to the technical field of primary frequency regulation of a thermal generator set. An industrial control server is used as a core of a primary frequency regulation controller, and a corresponding peripheral communication port is configured; and a software control module of the primary frequency regulation controller comprises a quick frequency time delay calculation unit, an absolute value calculation unit, a frequency change rate judgment unit, a holding pulse calculation unit, a universal frequency time delay calculation unit, a diversity factor gain calculation unit, a diversity factor curve function calculation unit, a compensation limiting unit and an analog quantity instruction output selection unit. According to the primary frequency regulation method, floating frequency difference regulation and variable rate load instruction modification are adopted and a primary frequency regulation system emergency compensation mode is introduced; and effective guarantee is provided for safety of the frequency of a power grid. The method is suitable for the power grid with characteristics of small scale, frequent frequency fluctuation, high amplitude of variation and long stable period.