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32results about How to "Reduced execution steps" patented technology

Contact judgment method of spherical particles and triangular meshes in discrete element simulation

InactiveCN103235854ASolve the problem of contact judgmentAvoid the problem of separately establishing the contact judgment algorithmSpecial data processing applicationsDiscrete element simulationGraphics
The invention relates to a contact judgment method of spherical particles and triangular meshes in discrete element simulation. The contact judgment method of the spherical particles and the triangular meshes in the discrete element simulation comprises steps of searching neighbor meshes of a target particle to confirm a boundary triangle unit which performs intersecting detection with the target particle; confirming primary contacting information between the target particle and the boundary triangle unit in combination with a symbolic assembly of triangular Voronoi space and center-of-mass coordinates; and judging effectiveness of the primary contacting information, eliminating invalid contacting information and adding the effective contacting information into a contacting linked list to calculate the contact force of particles through a discrete element simulation program. The contact judgment method of the spherical particles and the triangular meshes in the discrete element simulation has the advantages of avoiding respectively building contact judgment algorithms for every kind of basic graphic elements; providing a method for directly positioning an area generating contact to save execution steps of the contact judgment; building judging criteria for eliminating the invalid contact information among multiple contact information; and finally effectively solving the contact judgment problem of the spherical particles and complex geometry boundaries in the discrete element simulation.
Owner:WUHAN UNIV

Attendance management system, method and device and storage medium

The invention relates to an attendance management system, method and device and a storage medium, and belongs to the field of information collection and application. The attendance management system comprises a user terminal, a data center I, an access control terminal and a data center II, wherein the user terminal runs a host program and an attendance management applet, the attendance managementapplet is a program operated depending on the host program; a reporting module is used for reporting first biological information of an authenticated employee to the data center through the attendance management applet; the data center I is used for receiving the first biological information of the user terminal, sending the first biological information of the authenticated employee to the accesscontrol terminal; the access control terminal is used for collecting second biological information of a target user, and when the second biological information is matched with the first biological information, and a gate corresponding to the access control terminal is controlled to release access control limitation and generate an access record of the target user; and the data center II is used for generating an attendance record according to the access record of the access control. The problems that an access control system and an attendance system are separately arranged, an enterprise needs to maintain and manage the two different systems at the same time, information is isolated and operation is tedious can be solved by adopting the attendance management system, the method and the device.
Owner:TENCENT TECH (SHENZHEN) CO LTD

Image frame processing optimizing method based on Davinci platform

The invention provides an image frame processing optimizing method based on a Davinci platform. The image frame processing optimizing method comprises the following steps in sequence: designating three video image frame memory addresses in an internal memory at the same time, wherein the three video image frame memory addresses are the destination addresses of EDMA (Enhanced Direct Memory Access); identifying the three video image frequency memory addresses into buffer 1, buffer 2 and buffer 3; sequentially storing the image data frames into the plurality of video image memory addresses by virtue of the EDMA according to the sequence circulation of buffer 1, buffer 2 and buffer 3; and writing the image data frames into some video image frame memory addresses by the EDMA, and processing the image data of two frames in another two video image frame memory addresses by a CPU (Central Processing Unit) at the same time, thus obtaining a pingpong mechanism under the execution of the CPU. By adopting the image frame processing optimizing method based on the Davinci platform, the utilization rate of the CPU is increased, the images of two frames are read while processing the image frame by the CPU, thus the step of executing memcpy is saved, and as a result, the executing efficiency is greatly improved.
Owner:天津市天祥世联网络科技有限公司

Service processing method and apparatus

The invention discloses a service processing method used for improving the service processing efficiency. The method comprises: analyzing a bytecode of a service processing program to obtain resource calling relationship information in a service processing process; dividing resource calling operations contained in the service processing process according to the resource calling relationship information to obtain at least one parallel resource calling operation set, wherein the parallel resource calling operation set contains at least two resource calling operations capable of being executed in parallel; and in the service processing process, executing the at least two resource calling operations in the parallel resource calling operation set in parallel. The invention furthermore discloses a service processing apparatus.
Owner:ALIBABA GRP HLDG LTD

Manipulator movement method and system

The invention discloses a moving method and system for a mechanical arm. The method includes the steps that a part grasping part of the mechanical arm moves to a fetching point, and meanwhile fetching enabling signals are detected; if no fetching enabling signal is detected in the moving process, the part grasping part is controlled to stop at a first preset holding point; after the mechanical arm receives the fetching enabling signals, the part grasping part is controlled to move to the fetching point from the first holding point; the part grasping part of the mechanical arm moves to a discharging point, and meanwhile discharging enabling signals are detected; if no discharging enabling signal is detected in the moving process, the part grasping part is controlled to stop at a second preset holding point; after the mechanical arm receives the discharging enabling signals, the part grasping part is controlled to move to the discharging point from the second holding point; after discharging is completed, the mechanical arm continues to execute the step that the part grasping part of the mechanical arm is moved to the fetching point. The mechanical arm conducts detection while moving, the flexibility of control over the mechanical arm is improved, time can be effectively saved, and production efficiency is improved.
Owner:SHENZHEN HUACHENG IND CONTROL

A Contact Judgment Method between Spherical Particles and Triangular Meshes in Discrete Element Simulation

InactiveCN103235854BSolve the problem of contact judgmentAvoid the problem of separately establishing the contact judgment algorithmSpecial data processing applicationsDiscrete element simulationGraphics
The invention relates to a contact judgment method of spherical particles and triangular meshes in discrete element simulation. The contact judgment method of the spherical particles and the triangular meshes in the discrete element simulation comprises steps of searching neighbor meshes of a target particle to confirm a boundary triangle unit which performs intersecting detection with the target particle; confirming primary contacting information between the target particle and the boundary triangle unit in combination with a symbolic assembly of triangular Voronoi space and center-of-mass coordinates; and judging effectiveness of the primary contacting information, eliminating invalid contacting information and adding the effective contacting information into a contacting linked list to calculate the contact force of particles through a discrete element simulation program. The contact judgment method of the spherical particles and the triangular meshes in the discrete element simulation has the advantages of avoiding respectively building contact judgment algorithms for every kind of basic graphic elements; providing a method for directly positioning an area generating contact to save execution steps of the contact judgment; building judging criteria for eliminating the invalid contact information among multiple contact information; and finally effectively solving the contact judgment problem of the spherical particles and complex geometry boundaries in the discrete element simulation.
Owner:WUHAN UNIV
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