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Simulation method and device of digital twin system of industrial robot

The invention provides a simulation method and device of a digital twin system of an industrial robot. The simulation device comprises the industrial robot, a vision perception unit and a computer, wherein the vision perception unit is arranged at the tail end of the robot and is composed of a camera and a wire structure light emitter; an industrial robot simulation system is established, the robot is modeled, and three instructions are analyzed and run; a target three-dimensional measurement model of a robot visual system is acquired by using a wire structure optical geometric triangular method; a motion instruction is determined for the working task of the robot, virtual simulation is carried out through the computer, and reachable points and collision point detection are carried out; and the robot is actually used for identifying a target object through the visual perception unit, and the actual movement of the robot is driven. The simulation device is safe and reliable in virtual simulation, abnormal operation possibly in actual operation is avoided, the visual perception unit is used for identifying the target object through three-dimensional visual technology, the self-adaptive capacity of the robot to the field environment is improved, and flexibility and intelligence are enhanced.
Owner:XI AN JIAOTONG UNIV

Wind generator power optimization system and method based on drift correction

The invention relates to a wind generator power optimization system based on drift correction. The system comprises a data acquisition module, a power simulation module, a wind direction offset diagnosis module and a control module. The data acquisition module is used for collecting real-time data of operation of a draught fan, and storing the real-time data to form historical data. The power simulation module is used for reading the historical data, screening the historical data, establishing a balanced data set according to the screened data and establishing a power model according to the balanced data set. The wind direction offset diagnosis module generates control information according to the received power model and the real-time data and sends the control information to the control module. The control module adjusts the drift angle of the draught fan according to the received control information. In addition, the invention further provides a wind generator power optimization method based on drift correction. According to the wind generator power optimization system and method based on drift correction, the drift angle can be diagnosed and adjusted in real time, the service life of a wind generator set is prolonged, and the operation safety factor is improved.
Owner:风脉能源(武汉)股份有限公司

Electronic test device

The invention provides an electronic test device which comprises a monitoring terminal and a test terminal. The test terminal comprises N test computers, wherein N is greater than or equal to 1, and the test computers are different in IP address. The monitoring terminal is used for reading information of the computers and an examinee name list in an examination room, allocating corresponding computers to examinees according to the information of the computers and the name list, storing an allocation result, displaying the allocation result through a projector after position allocation, and sending power-on signals to the computers in the allocation result according to the allocation result. Each test computer comprises a judgment module and an examination module, wherein the judgment module is used for detecting whether the test computer is a test computer after the test computer is powered on, receiving verification information inputted by the examinee, detecting whether the verification information is qualified or not, and displaying the examination content if the verification information is qualified; and the examination module is used for receiving an examination answer inputted by the examinee, uploading the examination answer to a server and displaying that uploading is failed if uploading of the examination answer is failed and uploading the examination answer again.
Owner:HUAIHAI INST OF TECH

Pixel structure, display panel and driving method of display panel

The invention discloses a pixel structure, a display panel and a driving method of the display panel. The pixel structure comprises a plurality of first sub-pixel columns and a plurality of second sub-pixel columns, wherein the plurality of first sub-pixel columns are arranged at intervals, the plurality of second sub-pixel columns are arranged at intervals, the first sub-pixel columns comprise sub-pixels in two colors arranged at intervals, the second sub-pixel columns are sub-pixel columns in single color, and the number of the first sub-pixel columns is more than the number of the second sub-pixel columns by one column. The number of the first sub-pixel columns is more than the number of the second sub-pixel columns by one column, so that the whole pixels are arranged symmetrically, and an image signal processing algorithm consistent with normal display is still maintained during mirror image display. For example, a column of sub-pixels having R and B sub-pixels arranged at intervals is additionally arranged at the end of a pixel structure with GGRB arrangement in the prior art, so that the whole pixel arrangement structure is of a symmetric structure, the problem of abnormality of the image signal processing algorithm caused by asymmetric pixel arrangement during mirror image display of a display panel can be prevented, and meanwhile, the problem of green at an edge can be solved.
Owner:BOE TECH GRP CO LTD
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