34results about How to "Calibration automatic" patented technology

The embodiment of the invention provides a method for calibrating a pedal open degree value, a calibrating device and a vehicle. The method comprises the following steps that after a vehicle is started, the calibrating device arranged in the vehicle obtains a first open degree value from a memory, wherein the first open degree value is the preset minimum open degree value of a pedal; the calibrating device detects a second open degree value through a sensor of the pedal, wherein the second open degree value is the current minimum open degree value of the pedal; and the calibrating device uses the second open degree value to calibrate the first open degree value. According to the embodiment, when the current minimum open degree value of the pedal is different from the preset minimum open degree value of the pedal, the current open degree value of the pedal can be used for calibrating the preset minimum open degree value of the pedal so that the vehicle is controlled according to the calibrated minimum open degree value; thus the pedal calibration can be automatically performed without artificial participation; and the pedal calibration cost is reduced.

The invention discloses a calibration method and device for a camera device and calibration equipment. The method includes: obtaining a plurality of images shot by a camera device for a movable calibration device, wherein the images comprise a calibration reference object arranged on the calibration device; obtaining the position of calibration equipment corresponding to each image; obtaining a relative installation position relationship between the calibration reference object and the calibration equipment; and calibrating the external parameters of the camera device according to the relativeinstallation position relationship, the plurality of images and the position of the calibration equipment corresponding to each image. The calibration equipment can move in a scene in which a to-be-calibrated camera device is deployed; an image acquired by the to-be-calibrated camera device is acquired and processed, a spatial position relation and between a calibration reference object and the to-be-calibrated camera device is constructed, self-positioning is performed, and finally the to-be-calibrated camera device in the scene is automatically and conveniently calibrated. According to themethod, manual calibration operation is not needed, and the calibration efficiency of the camera device is remarkably improved.

The invention discloses an electronic scale temperature correction method and a device. The method comprises the steps of obtaining environment temperature after obtaining a weighting result by an electronic scale; respectively comparing the obtained environment temperature value with an electronic scale working temperature upper limit value and an electronic scale working temperature lower limit value which are preset in an electronic scale local position; calling a correction list preset in the electronic scale local position and obtaining a corresponding correction value in the correction list in a matching way according to the obtained environment temperature if the environment temperature value is higher than the electronic scale working temperature upper limit value preset in the electronic scale local position, or the environment temperature value is lower than the electronic scale working temperature lower limit value preset in the electronic scale local position; and carrying out correction on the weighting result according to the correction value obtained by matching. By using the method, when the electronic scale works in a condition that the environment temperature value is higher than a limiting temperature range value preset in the local position, the weight result of the electronic scale can be corrected automatically, so that an accurate weighing result is obtained.

The invention discloses a method and device for realizing the correction of trapezoidal distortion of a projection surface, and a projector, including measuring the variation trend of the distance from the projection surface by using a rotatable rangefinder, and determining the correction angle according to the variation trend; according to the determined correction The included angle corrects for keystone distortion. Through the method of the invention, the trapezoidal distortion correction is realized automatically and accurately.

The invention provides a continuous background correction method based on an interpolation method in laser-induced breakdown spectroscopy. The continuous background correction method comprises the following steps: S1, collecting a laser-induced breakdown spectrum with continuous background interference, acquiring all minimum value points of the spectral intensity value, and sorting the minimum value points according to an ascending sequence of the wavelength; S2, defining a window function; S3, sorting N minimum value points in the window function according to an ascending sequence of the spectral intensity value, and selecting and storing the previous M minimum value points; sliding the window function from a first minimum value point of spectral data, and sorting and selecting once after each sliding operation; after traversing all the minimum value points, using selected points as a new minimum value point set; S4, performing interpolation calculation on the new minimum value points, and using interpolation results for estimating continuous backgrounds; S5, according to the estimated continuous backgrounds, calculating signal-to-background ratios, and using the continuous background, estimated when the signal-to-background ratio is maximum, as a final continuous background estimation value. By the continuous background correction method, the performance of spectroscopic analysis can be improved.

The embodiment of the invention provides a method for calibrating a pedal open degree value, a calibrating device and a vehicle. The method comprises the following steps that after a vehicle is started, the calibrating device arranged in the vehicle obtains a first open degree value from a memory, wherein the first open degree value is the preset minimum open degree value of a pedal; the calibrating device detects a second open degree value through a sensor of the pedal, wherein the second open degree value is the current minimum open degree value of the pedal; and the calibrating device uses the second open degree value to calibrate the first open degree value. According to the embodiment, when the current minimum open degree value of the pedal is different from the preset minimum open degree value of the pedal, the current open degree value of the pedal can be used for calibrating the preset minimum open degree value of the pedal so that the vehicle is controlled according to the calibrated minimum open degree value; thus the pedal calibration can be automatically performed without artificial participation; and the pedal calibration cost is reduced.