55results about How to "OK real time" patented technology

The present invention relates to a method for determining a driving behaviour of a driver of a vehicle, comprising the steps: acquiring (100) a three-dimensional signal of an acceleration sensor, wherein the three-dimensional signal comprises an acceleration value in, in each case, one independent spatial direction, calculating (200) a characteristic variable of the three-dimensional signal, and outputting (300) the driving behaviour on the basis of the characteristic variable by means of an output device, wherein the characteristic variable is a measure of the aggressiveness of a driving behaviour, and wherein the characteristic variable comprises either a fractal dimension of an embedding of the three-dimensional signal and / or a Kolmogorow entropy of the three-dimensional signal.

An apparatus and a method for detecting a narrow groove (72) of a specular reflection workpiece are provided. The apparatus includes: a spherical light source (3) configured to generate a uniform illumination on a workpiece surface (7); a laser array (4) having at least three lasers and configured to emit a laser light onto the workpiece surface (7); an imaging unit (5) configured to sample a light from the workpiece surface (7) to generate an image thereof; and a control unit (1) configured to control the spherical light source (3) and the laser array (4) to illuminate the workpiece surface (7) alternately, to control the imaging unit (5) to sample the image of the illuminated workpiece surface (7) respectively, to calculate a pose of a welding torch (8) with respect to the workpiece and a position of a center point of the groove (72) according to the image.

The invention discloses a method and system for determining a feedback force in a virtual cardiovascular interventional operation training system. The method includes the following steps that: displacement trajectory segments of a guide wire, topologic information of inner elements of the tetrahedral meshes of a blood vessel, and associated information of the triangular patches of the inner wall of the blood vessel and a space bounding box are obtained; based on the above results, whether the guide wire and the blood vessel collide is judged; if the guide wire and the blood vessel collide, the coordinates of a collision point and the coordinates of a force sense interaction device of a guide wire node are determined; and a virtual feedback force between the guide wire and the blood vessel is determined according to the coordinates of the collision point and the coordinates of the force sense interaction device of the guide wire node. With the method and system provided by the embodiments of the invention adopted, technical problems in accurately determining a virtual feedback force between a guide wire and a blood vessel in real time can be solved.

A mechanical arm inverse kinematics solution error determination and correction method and device. Prior to operation an error model is established, during operation a current error is determined via error solution, and corresponding data correction is performed by using the error model, solving the technical problem that conventional methods cannot determine inverse kinematics solution errors in real time and in-process, and cannot achieve timely correction of data errors. The method comprises: performing error solution on an inverse kinematic solution under test to obtain an error solution result, and establishing an error model according to the error solution result (S11); obtaining motion target data of a target object (S12); performing, according to the motion target data and by using the inverse kinematic solution under test, inverse kinematics calculations to obtain data of joint variables (S13); performing an error solution according to the joint variables data to determine a current error of the inverse kinematic solution under test (S14); and correcting, according to the current error, the joint variables data by using the error model (S15).

The invention relates to a method for determining the temperature-dependent behavior of a friction clutch having at least two disks carrying friction surfaces in the form of at least one counter pressure disk and at least one pressure disk, wherein The temperature model estimates the clutch temperature at least by means of energy input into the friction clutch. In order to further improve the temperature dependence of the function of the friction clutch, the temperature-dependent friction power is determined from the temperature estimated from the temperature model and from the properties of the geometry of the at least two disks.

The embodiment of the present application discloses a voice quality assessment method, which relates to the field of communication technology and is invented to solve the problems existing in the prior art that the voice quality of the network cannot be assessed in real time and the accuracy of the assessment result is poor. The method is applied in a VoWiFi scenario. In a VoWiFi scenario, a calling terminal accesses a WiFi network and initiates a call through the WiFi network, and a called terminal accesses a call through a cellular network. The method includes: acquiring the signal strength of the WiFi network accessed by the calling terminal when the calling terminal initiates a call. Obtain the received signal strength when the called terminal accesses the call through the cellular network. The voice quality evaluation result of the call is determined according to the signal strength of the WiFi network accessed by the calling terminal when the calling terminal initiates the call, the received signal strength when the called terminal accesses the call through the cellular network, and a preset evaluation model.

The invention provides a strong specular reflection workpiece thin and narrow groove detection device and method based on strip-shaped light sources, and belongs to the field of welding automation. According to the device and the method, a strip-shaped light source array irradiates the surface of a workpiece so that a workpiece surface image with the uniform gray level can be obtained, and the automatic detection on a strong specular reflection workpiece thin and narrow groove is achieved by determining the relative position and the posture between a welding gun and the workpiece through a laser array. According to the device and the method, the strip-shaped light source array irradiates the surface of the strong specular reflection workpiece so that the uniform-illumination workpiece surface image can be obtained, the characteristics of the groove in the image are obvious, the center position of the groove is conveniently and accurately extracted, and the detection accuracy can reach 0.03 mm; the relative position and the posture between the workpiece and the welding gun can be rapidly and accurately obtained through the laser array; the system structure is simple, the detection accuracy is high, instantaneity is high, cost is low, and the strong specular reflection workpiece thin and narrow groove detection device and method can be applied to automatic detection of the groove of the strong specular reflection workpiece surface and are particularly suitable for the occasion of high-energy beam welding automatic tracking of the thin and narrow groove workpiece with the groove gap smaller than 0.1 mm.