Tunnel computerised tomographic scanner and method for acquiring images from a scintillator of a tunnel computerised tomography scanner

    公开(公告)号:US11226296B2

    公开(公告)日:2022-01-18

    申请号:US17259869

    申请日:2020-01-31

    Abstract: A tunnel computerised tomographic scanner comprising a rotor (3), an X-ray emitter (7) mounted on the rotor (3), an X-ray detector (8) mounted on the rotor (3), on the opposite side of a detecting zone (4), the X-ray detector (8) comprising a scintillator (9) which has at least one emission face (10) from which the scintillator (9) emits light in the visible spectrum when it is struck by X-rays, and a plurality of video cameras (12) which are positioned in such a way that each of them frames at least one portion of the scintillator (9), for acquiring one after another second images, in the visible spectrum, of the respective portion of the scintillator (9), wherein, according to the method, at least two separate video cameras (12) substantially frame each zone of the emission face (10), and an electronic processing unit is programmed to combine all of the second images obtained by the video cameras (12) and to obtain a first image of the emission face (10), to be used for the tomographic reconstruction of an object (6) which is placed in the detecting zone (4).

    Method for establishing a posteriori a match between a piece of wood and a log from which the piece of wood has been obtained

    公开(公告)号:US10987822B2

    公开(公告)日:2021-04-27

    申请号:US16297107

    申请日:2019-03-08

    Abstract: A method for establishing a posteriori a match between a piece of wood and a log from which the piece of wood has been obtained, comprising the following operating steps of performing a tomographic scan of the wooden log, of calculating or selecting a log cutting pattern, of defining, starting with the tomographic information available, one or more virtual individualising characteristics which are linked to the distribution and/or size of physical characteristics of the log inside and/or on the surface of the self-same virtual piece of wood, of saving them in a database, together with information about the identity of the log, of dividing the log into real pieces of wood according to the cutting pattern, of acquiring real information about the distribution and/or size of physical characteristics of the log inside and/or on the surface of a real piece of wood and of defining corresponding real individualising characteristics to be compared with virtual individualising characteristics saved and of identifying an origin of the real piece of wood based on the information about the identity of the log which is saved together with the virtual individualising characteristics which match the real individualising characteristics.

    METHOD AND APPARATUS FOR PERFORMING A TOMOGRAPHIC EXAMINATION OF AN OBJECT

    公开(公告)号:US20210116395A1

    公开(公告)日:2021-04-22

    申请号:US17072982

    申请日:2020-10-16

    Abstract: A method and a related apparatus for performing a tomographic examination of an object (2) which advances through an examination area (6), wherein the examination area (6) is irradiated with x-rays transversally to a motion trajectory of the object (2) and the residual intensity of the x-rays which have crossed the object (2) is repeatedly detected to obtain, for each detection, an electronic two-dimensional pixel map, the two-dimensional maps thus obtained being processed by a computer to obtain a three-dimensional tomographic reconstruction of the object (2); wherein, during the advancement, the object (2) is made or let rotate, at least partly uncontrolled, in such a way that the object (2) rotates around one or more rotation axes which are transversal both to the motion trajectory and to the propagation directions of the x-rays crossing it; and wherein a computer also determines the spatial position in which the object (2) is located relative to the one or more emitters (4) and/or the one or more detectors (5) at the instant when each two-dimensional map is detected, and factors this in the tomographic reconstruction.

    APPARATUS FOR DETECTING THE THREE-DIMENSIONAL STRUCTURE OF A LOG
    24.
    发明申请
    APPARATUS FOR DETECTING THE THREE-DIMENSIONAL STRUCTURE OF A LOG 审中-公开
    用于检测日志三维结构的装置

    公开(公告)号:US20150136277A1

    公开(公告)日:2015-05-21

    申请号:US14606109

    申请日:2015-01-27

    Abstract: An apparatus for detecting the three-dimensional structure of a log including supporting means (3) forming a holder (4) for a log (2); means (5) for detecting the log (2) lateral surface structure positioned only on one side of the log (2) placed on the holder (4); and control and processing means for receiving detection step results from them and for reconstructing the log (2) overall surface structure; and means (6) for making the log (2) rotate about one or more axes of rotation which are substantially parallel with the log (2) main direction of extension (D), the control and processing means also being operatively connected to the means (6) for making the log rotate, controlling their operation.

    Abstract translation: 一种用于检测原木的三维结构的装置,包括形成用于原木(2)的支架(4)的支撑装置(3) 用于检测仅位于放置在保持器(4)上的对数(2)的一侧上的对数(2)侧表面结构的装置(5); 以及用于接收来自它们的检测步骤结果和用于重建log(2)整体表面结构的控制和处理装置; 以及用于使所述对数(2)围绕基本上与所述对数(2)延伸主方向(D)平行的一个或多个旋转轴线旋转的装置(6),所述控制和处理装置还可操作地连接到所述装置 (6)使日志旋转,控制其操作。

    Processing head for a forestry machine

    公开(公告)号:US12290029B2

    公开(公告)日:2025-05-06

    申请号:US17502498

    申请日:2021-10-15

    Abstract: A processing head (10) for a forestry machine (1) is intended to process a tree (9) having a trunk (92) with a longitudinal direction (90), branches (94) extending from the trunk (92) transversely to the longitudinal direction (90) and knots (96) extending into the trunk (92). The processing head (10) comprises: a frame (2) having a seat (20) for receiving the trunk (92) of the tree (9) to be processed; a motorised device for moving the trunk (92) relative to the seat (20), by advancing the trunk (92) through the seat (20) along the longitudinal direction (90) of the trunk (92); one or more blades (26) for cutting the branches (94) from the trunk (92) as the trunk (92) advances; a detection system for detecting positions of the branches (94) and/or of the knots (96) on the trunk (92) as the trunk (92) advances. Information on the positions of the branches (94) and/or of the knots (96) is processed to determine an identification code that is based on said positions and that refers to said trunk (92) or to a segment obtained from said trunk (92). The identification code is comparable against a code determined a posteriori for a specific trunk or for a specific segment of trunk, in order to establish whether the specific trunk or the specific segment of trunk corresponds to said trunk (92) or to said segment of trunk (92). The information on the positions of branches (94) and/or of knots (96) can also be used to determine, during a processing of the tree (9), one or more positions on the trunk (92) in which to cut the trunk (92) perpendicularly or transversely to the longitudinal direction (90), which is to say to optimise the truncation of the trunk (92).

    APPARATUS FOR PEELING LOGS
    26.
    发明申请

    公开(公告)号:US20230041296A1

    公开(公告)日:2023-02-09

    申请号:US17876717

    申请日:2022-07-29

    Abstract: Apparatus for peeling a log (5) comprising a cutting station (3), a loading station (2) and a device (4) for transferring logs (5) from the loading station (2) to the cutting station (3), the cutting station (3), the loading station (2) and the transfer device (4), in use, interacting with each other to position the log (5) in the cutting station (3). The loading station (2) comprises a device (10) for axially rotating the log (5) about a second rotation axis (11) and a radiographic examination device (19) configured to generate, in use, radiographic scans of the log (5). An electronic unit is connected both to the radiographic examination device (19), to receive digital-format data from it relating to each radiographic scan generated by it, and to the axial rotation device (10), and which is programmed to use said digital-format data to control the operation of the transfer device (4) and/or the cutting station (3).

    Apparatus and method for performing a computed tomography scan of an object which has an elongate shape, in particular wooden boards

    公开(公告)号:US11525789B2

    公开(公告)日:2022-12-13

    申请号:US17176017

    申请日:2021-02-15

    Inventor: Enrico Ursella

    Abstract: Apparatus and method for performing computed tomography scans of elongate objects, wherein the object is irradiated with X-rays emitted by a plurality of X-ray emitters which are offset relative to a forward movement direction transversal to the main axis of the object, wherein a rotation device rotates each object about its own main axis of extension while the object is irradiated by one or more beams of X-rays, wherein electronic identifying means estimate the instantaneous position and orientation of the axial portions of the object which are irradiated during the rotation, and wherein an electronic processing and control unit is programmed for combining sets of radiographic data acquired for each axial portion of the object at different detecting moments during the rotation, for processing a three-dimensional tomography reconstruction of the object while taking into account corresponding information about the position and the orientation of each axial portion at each moment.

    METHOD AND APPARATUS FOR CAPTURING AN IMAGE OF A LATERAL FACE OF A WOODEN BOARD

    公开(公告)号:US20210374450A1

    公开(公告)日:2021-12-02

    申请号:US17327180

    申请日:2021-05-21

    Abstract: Method and apparatus for capturing an image of a lateral face of a wooden board, where the lateral face (2) is parallel to a main axis of development of the wooden board (3), with the method comprising a step for feeding the wooden board (3) with the lateral face (2) transverse to a feeding direction (4), a step for illuminating the lateral face (2), a step for capturing, using a plurality of area scan cameras (9), a plurality of first digital images at different times, where each first digital image comprises a portion (10) of the lateral face (2) extending for an entire height of the lateral face (2) transverse to the main axis of development and for part of a length of the lateral face (2) along the main axis of development, where the set of all such portions (10) corresponds to the entire lateral face (2), and a merging step for merging the first digital images using an electronic processing unit to obtain a second digital image showing the entire lateral face (2).

    Apparatus for carrying out a non-destructive inspection on wooden boards or similar objects

    公开(公告)号:US10748270B2

    公开(公告)日:2020-08-18

    申请号:US15458422

    申请日:2017-03-14

    Abstract: This invention relates to an apparatus (1) for carrying out a non-destructive inspection on a wooden board (9) or a similar object. The apparatus (1) comprises a movement system (3) comprising at least two chains or belts (32) that are at a distance from one another and substantially parallel to each other. The chains or belts (32) are slidable parallel to a movement path (30) and are and intended to support the wooden board (9). The apparatus (1) also comprises a non-destructive inspection station (2) that is positioned on the movement path (30), for carrying out a non-destructive inspection on the wooden board (9) that is supported by the chains or belts (32). The non-destructive inspection station (2) comprises at least one operating component (22) that is positioned on the same side as the chains or belts (32) and emits or receives a signal or an image, with an emission or reception field (220) that faces towards a region between two chains or belts (32). Each chain or belt (32) comprises an elongate flexible body (320) and at least one rest element (36) that is positioned on the elongate flexible body (320). The at least one rest element (36) projects upwards from the elongate flexible body (320) and has a top face (361) with a width (L36) that is less than the width (L32) of the elongate flexible body (320). The top faces (361) are intended to provide a surface on which the wooden board (9) can rest, so that the wooden board is kept at a distance from the elongate flexible body (320) of each chain or belt (32).

    METHOD FOR ESTABLISHING A POSTERIORI A MATCH BETWEEN A PIECE OF WOOD AND A LOG FROM WHICH THE PIECE OF WOOD HAS BEEN OBTAINED

    公开(公告)号:US20190283266A1

    公开(公告)日:2019-09-19

    申请号:US16297107

    申请日:2019-03-08

    Abstract: A method for establishing a posteriori a match between a piece of wood and a log from which the piece of wood has been obtained, comprising the following operating steps of performing a tomographic scan of the wooden log, of calculating or selecting a log cutting pattern, of defining, starting with the tomographic information available, one or more virtual individualising characteristics which are linked to the distribution and/or size of physical characteristics of the log inside and/or on the surface of the self-same virtual piece of wood, of saving them in a database, together with information about the identity of the log, of dividing the log into real pieces of wood according to the cutting pattern, of acquiring real information about the distribution and/or size of physical characteristics of the log inside and/or on the surface of a real piece of wood and of defining corresponding real individualising characteristics to be compared with virtual individualising characteristics saved and of identifying an origin of the real piece of wood based on the information about the identity of the log which is saved together with the virtual individualising characteristics which match the real individualising characteristics.

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