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30 条记录 (耗时 0.014 秒)

    VOLUME MEASUREMENT METHOD AND APPARATUS BASED ON TIME-OF-FLIGHT DEPTH CAMERA
    1.
    发明公开
    VOLUME MEASUREMENT METHOD AND APPARATUS BASED ON TIME-OF-FLIGHT DEPTH CAMERA 审中-公开

    公开(公告)号：EP4141380A1

    公开(公告)日：2023-03-01

    申请号：EP21894082.3

    申请日：2021-12-21

    申请人： Qingdao University ,  Qingdao Point Cloud Intelligent Technology Co., Ltd. ,  Weihai Innovation Institute, Qingdao University

    发明人： ZHANG, Weizhong ,  LIU, Zenghui ,  ZHANG, Chi ,  ZHANG, Hongfeng ,  YUAN, Cuimei

    IPC分类号： G01B11/00

    摘要： The present application provides a volumetric measuring method and apparatus based on a TOF depth camera, which is achieved by: acquiring depth images; denoising the depth images; selecting a first feature area of the first depth image and a second feature area of the second depth image that have been denoised respectively, traversing each pixel point in the first feature area at multiple traversal speeds, and matching a first depth value of a current pixel point with a second depth value of a target pixel point corresponding to the current pixel point in the second feature area to acquire multiple total similarity values; determining a traversal speed corresponding to a maximum total similarity value as an instantaneous speed at a current moment; calculating a package volume according to the instantaneous speed. The present application effectively solves the problem that an accurate package volume cannot be obtained when a speed of the conveyor belt is not fixed, and high in feasibility.

    INTELLIGENT PERCEPTION AND DETERIORATION EARLY WARNING SYSTEMS AND METHODS FOR FULL-LIFE PERFORMANCE OF CONCRETE STRUCTURE
    3.
    发明公开
    INTELLIGENT PERCEPTION AND DETERIORATION EARLY WARNING SYSTEMS AND METHODS FOR FULL-LIFE PERFORMANCE OF CONCRETE STRUCTURE 审中-公开

    公开(公告)号：EP4001855A1

    公开(公告)日：2022-05-25

    申请号：EP20855469.1

    申请日：2020-06-11

    申请人： Qingdao University Of Technology

    发明人： JIN, Zuquan ,  WANG, Penggang ,  ZHAO, Tiejun

    IPC分类号： G01D21/02

    摘要： A life-cycle performance intelligent-sensing and degradation warning system and method for concrete structures are disclosed. The warning system comprises a main control module, a multifunctional sensor module, an anti-theft module and a critical warning module. Environmental parameters in concrete are monitored by the multifunctional sensor module, and the remaining service life of a concrete structure is accurately predicted through a life prediction model according to the temperature, humidity, chloride ion concentration and pH at different depths, and a critical chloride ion concentration and a structure stress status that are dynamically obtained. In addition, during warning analysis, a targeted correction method is designed for acquired data, and temperature and pH correction is carried out for real-time monitoring data of the chloride ion sensor to further guarantee the accuracy of monitoring data, such that scientific references are provided for durability evaluation, protection and restoration of the structure, and the actual application value is high.

    PERFORMANCE-LEVEL SEISMIC MOTION HAZARD ANALYSIS METHOD BASED ON THREE-LAYER DATASET NEURAL NETWORK
    4.
    发明公开
    PERFORMANCE-LEVEL SEISMIC MOTION HAZARD ANALYSIS METHOD BASED ON THREE-LAYER DATASET NEURAL NETWORK 审中-公开

    公开(公告)号：EP3889652A1

    公开(公告)日：2021-10-06

    申请号：EP21166049.3

    申请日：2021-03-30

    申请人： Qingdao University Of Technology

    发明人： LIU, Wenfeng ,  ZHOU, Zheng ,  LI, Jianfeng

    IPC分类号： G01V1/00 ,  G06N7/00 ,  G06F17/18

    摘要： The invention relates to an anti-seismic technique analysis method, in particular to a performance-level seismic motion hazard analysis method based on a three-layer dataset neural network. The method comprises the following steps: (S1) extracting seismic motion data and denoising the data; (S2) extracting feature data from the data, and carrying out initialization; (S3) generating a training set, an interval set and a test set; (S4) training a multi-layer neural network based on the training set; (S5) training output values of the neural network based on the interval set, and calculating a mean and a standard deviation of relative errors of the output values; (S6) training the neural network based on the test set to determine output values, and calculating a magnitude interval based on an interval confidence; (S7) carrying out probability probabilistic seismic hazard analysis to determine an annual exceeding probability and a return period of a performance seismic motion; and (S8) determining a magnitude and an epicentral distance that reach the performance-level seismic motion based on the performance seismic motion and consistent probability. A novel neural network training method is used to predict the seismic motion attenuation relation, thus improving the universality and flexibility of the attenuation relation.

    WATER-DISINTEGRABLE ENVIRONMENTALLY FRIENDLY MACROMOLECULAR BLEN MATERIALS AND THE PROCESS FOR PREPARATION THEREOF
    7.
    发明公开
    WATER-DISINTEGRABLE ENVIRONMENTALLY FRIENDLY MACROMOLECULAR BLEN MATERIALS AND THE PROCESS FOR PREPARATION THEREOF 有权
    WASSERDESINTEGRIERBARE UMWELTFREUNDLICHE MAKROMOLEKULARE BLENDMATERIALIEN UND HERSTELLUNGSVERFAHRENDAFÜR

    公开(公告)号：EP1669404A1

    公开(公告)日：2006-06-14

    申请号：EP04762146.1

    申请日：2004-09-02

    申请人： Polymer Science & Engineering College of Qingdao University of Science & Technology

    发明人： YU, Shanpu ,  XU, Fugui ,  LIU, Yuyong ,  HUANG, Zhaoge ,  SHI, Xianzong

    IPC分类号： C08L25/06 ,  C08L25/04 ,  C08L23/04 ,  C08L27/06 ,  C08L33/12 ,  C08L31/04

    CPC分类号： C08L51/02 ,  C08F251/00 ,  C08F251/02 ,  C08L25/06 ,  C08L33/02 ,  C08L35/06 ,  C08L2666/04 ,  C08L2666/02

    摘要： The present invention relates to a novel water-disintegrable environment-friendly macromolecular material formed by blending water absorbent resin particles into polymers, such as polystyrene. Said material will disintegrate into powder or lose its intensity at a certain rate in the presence of water. The present invention also relates to two kinds of processes for preparing said material. The first process is called blending-polynaerization process, wherein water absorbent resin particles with particle size not more than 5 µm, together with an initiator, are added into one or more monomers, such as styrene, to carry out polymerization. The second process is called reverse-phase emulsion polymerization process, wherein a W/O emulsion was firstly formed by agitating a mixture of one or more oil-soluble monomers, such as styrene, one or more water-soluble monomers that will form water-absorbent polymer after polymerization, such as sodium acrylate and methylene bisacrylamide, water, initiators and a W/O emulsifer, and then a polymerization was carried out. The material of the present invention has advantages that its preparation involves low cost, and its water-disintegrating rate is controllable. The material of the present invention can be used to replace the currently used foamed polystyrene type packing materials, especially the packing materials for disposable meal boxes, which are pollutive and difficult to be recycled and degraded.

    摘要翻译： 本发明涉及通过将吸水性树脂颗粒混合到聚苯乙烯等聚合物中形成的新型水解性环保型高分子材料。 所述材料将在水存在下以一定速率分解成粉末或失去其强度。 本发明还涉及制备所述材料的两种方法。 第一种方法称为共混 - 聚乳化方法，其中将粒径不大于5μm的吸水性树脂颗粒与引发剂一起加入到一种或多种单体如苯乙烯中以进行聚合。 第二种方法称为反相乳液聚合方法，其中首先通过搅拌一种或多种油溶性单体如苯乙烯，一种或多种将形成水溶性单体的水溶性单体的混合物形成W / O乳液， 聚合后的吸收性聚合物如丙烯酸钠和亚甲基双丙烯酰胺，水，引发剂和W / O乳化剂，然后进行聚合。 本发明的材料具有制备成本低的优点，其分解率可控。 本发明的材料可以用于替代目前使用的发泡聚苯乙烯型包装材料，特别是废弃餐盒的包装材料，其是污染性的并且难以回收和降解。

    CENTRAL COLUMN COMPOSITE JOINTS FOR FOLDING FLOOR SLAB AND ASSEMBLY METHOD THEREFOR
    9.
    发明公开
    CENTRAL COLUMN COMPOSITE JOINTS FOR FOLDING FLOOR SLAB AND ASSEMBLY METHOD THEREFOR 审中-公开

    公开(公告)号：EP3865632A1

    公开(公告)日：2021-08-18

    申请号：EP20859999.3

    申请日：2020-05-09

    申请人： Qingdao University Of Technology

    发明人： MOU, Ben ,  LIU, Yi ,  WANG, Yan ,  NING, Ning

    IPC分类号： E04B1/30 ,  E04B5/02

    摘要： A folding slab and central column composite joint and an assembly method thereof are disclosed. The folding slab and prefabricated column-beam composite joint adopting a steel-wood composite structure guarantees the construction quality, improves the construction efficiency, and optimizes the seismic performance of the structure. The folding slab and central column composite joint comprises a steel-wood composite column, square wood columns, connecting assemblies for connecting the steel-wood composite column and the square wood beams, and folding wood slabs connected with and supported by the steel-wood composite column, the square wood columns and the connecting assemblies. Each connecting assembly comprises a threaded sleeve having two ends respectively connected to horizontal steel bars and vertical protruding steel bars, and a double ring plate including an upper ring plate and a lower ring plate with cross-shaped slots, wherein dovetail grooves are formed at the joint of the ring plates, and corner plates are arranged on connected cross-shaped roots of the upper ring plate and the lower ring plate.

    VOLTAGE-TYPE SINGLE-STAGE MULTI-INPUT HIGH FREQUENCY LINK INVERTER HAVING BUILT-IN PARALLEL TIME-SHARING SELECTION SWITCHES
    10.
    发明公开
    VOLTAGE-TYPE SINGLE-STAGE MULTI-INPUT HIGH FREQUENCY LINK INVERTER HAVING BUILT-IN PARALLEL TIME-SHARING SELECTION SWITCHES 审中-公开

    公开(公告)号：EP3637611A1

    公开(公告)日：2020-04-15

    申请号：EP18899627.6

    申请日：2018-12-06

    申请人： Qingdao University

    发明人： CHEN, Daolian

    IPC分类号： H02M7/5387 ,  H02M7/5395 ,  H02M3/335 ,  H02M3/337 ,  H02M1/12 ,  H02M3/155

    摘要： The present disclosure relates to a single-stage multi-input buck type high-frequency link's inverter with an internal parallel-timesharing select switch, having a circuit structure as follows. The inverter circuit is formed by connecting a plurality of input filters connected to a common output high-frequency isolation voltage-transformation cycloconverter filter circuit through a multi-input single-output high-frequency inverter circuit. Each input end of the multi-input single-output high-frequency inverter circuit is connected to an output end of each of the input filters in a one-to-one connection. An output end of the multi-input single-output high-frequency inverter circuit is connected to an input end of a high-frequency transformer of the output high-frequency isolation voltage-transformation cycloconverter filter circuit. The inverter has following advantages: a plurality of input sources are connected to common ground and supply electric power in a time-sharing manner; the high-frequency isolation is performed between the output and the input; the output high-frequency voltage-transformation filter circuit is shared; the circuit topology is simple; the single-stage power conversion is performed; the conversion efficiency is high; the output voltage ripple is small; and the application prospect is broad, which establishes a key technology for realizing a small-to-medium capability distributed power supply system jointly supplied by a plurality of new energy sources.