公开(公告)号：WO2017199173A9

公开(公告)日：2017-11-23

申请号：PCT/IB2017/052894

申请日：2017-05-17

Applicant: PIRELLI TYRE S.P.A.

Inventor： BOFFA, Vincenzo ,  CANTÙ, Marco ,  REGOLI, Fabio ,  BALLARDINI, Valeriano

IPC: G01M11/08 ,  G01M17/02 ,  G01B11/00 ,  G01N21/952

Abstract: Checking method and line for checking a tyre (2) for vehicle wheels, wherein the tyre (2) is associated with a model with which a setting for a set of image acquisition devices (282) is associated and it is provided to: a) obtain the model associated with said tyre (2); b) acquire preliminary images of said tyre (2); c) obtain, from said acquired preliminary images, at least one adjustment value representative of at least one geometric characteristic of the tyre (2); d) calculate a deviation between said at least one adjustment value and a respective reference value, associated with said model; e) adjust the setting associated with the model of tyre (2) based on the calculated deviation and inspect said tyre (2) to look for possible production defects by acquiring images of at least part of the surface of the tyre (2), using the set of image acquisition devices (282) set according to the setting thus adjusted.

公开(公告)号：WO2017199173A1

公开(公告)日：2017-11-23

申请号：PCT/IB2017/052894

申请日：2017-05-17

Applicant: PIRELLI TYRE S.P.A.

Inventor： BOFFA, Vincenzo ,  CANTÙ, Marco ,  REGOLI, Fabio ,  BALLARDINI, Valeriano

IPC: G01M11/08 ,  G01M17/02 ,  G01B11/00 ,  G01N21/952

Abstract: Checking method and line for checking a tyre (2) for vehicle wheels, wherein the tyre (2) is associated with a model with which a setting for a set of image acquisition devices (282) is associated and it is provided to: a) obtain the model associated with said tyre (2); b) acquire preliminary images of said tyre (2); c) obtain, from said acquired preliminary images, at least one adjustment value representative of at least one geometric characteristic of the tyre (2); d) calculate a deviation between said at least one adjustment value and a respective reference value, associated with said model; e) adjust the setting associated with the model of tyre (2) based on the calculated deviation and inspect said tyre (2) to look for possible production defects by acquiring images of at least part of the surface of the tyre (2), using the set of image acquisition devices (282) set according to the setting thus adjusted.

Abstract translation: 检查用于检查车轮轮胎（2）的方法和生产线，其中轮胎（2）与用于一组图像采集装置（282）的设置关联的模型相关联 并且提供用于：a）获得与所述轮胎（2）相关联的模型; b）获取所述轮胎（2）的初步图像; c）从所述获取的初步图像中获得代表轮胎（2）的至少一个几何特征的至少一个调整值; d）计算与所述模型相关联的所述至少一个调整值与相应参考值之间的偏差; e）基于所计算的偏差来调整与轮胎（2）的模型相关联的设置，并且通过采集轮胎（2）的至少部分表面的图像来检查所述轮胎（2）以寻找可能的生产缺陷， 该组图像采集设备（282）根据如此调整的设置而设置。

公开(公告)号：WO2017115290A1

公开(公告)日：2017-07-06

申请号：PCT/IB2016/058038

申请日：2016-12-28

Applicant: PIRELLI TYRE S.P.A.

Inventor： HELD, Alessandro ,  BOFFA, Vincenzo ,  PECORARO, Daniele ,  BALLARDINI, Valeriano

IPC: G01M17/02 ,  G01B11/30

CPC classification number: G01M17/027 ,  G01B11/24

Abstract: The invention relates to a device (10) for checking a tyre in a tyre production line comprising: o a detection system (104) comprising a camera (105) having a target line (106) lying on an optical plane (107) passing through said camera (105); o a first light source (110), a second light source (108) and a third light source (109), said second light source (108) and said third light source (109) being arranged at opposite sides with respect to said optical plane (107) and symmetrically with respect to said first light source (110); o where said first light source (110) is adapted for emitting a first diffused light radiation on said surface portion, and said second light source (108) and third light source (109) are adapted for emitting a second grazing light radiation and a third grazing light radiation on a surface portion of said tyre (200) coinciding with or close to said target line (106); and o a reflective element (150) defining a reflective plane arranged perpendicular to said optical plane (107), said reflective element (150) being arranged between said second light source (108) and third light source (109), said reflective element (150) being adapted for reflecting said target line (106) by an angle comprised between about 60° and about 120° and wherein a minimum distance between said reflective plane and a focusing plane (121) of said camera (105) passing through said reflected target line is less than a minimum distance between one of said first light source (110), second light source (108) or third light source (109) and said focusing plane (121).

Abstract translation: 本发明涉及一种用于检查轮胎生产线中的轮胎的装置（10），其包括：检测系统（104），其包括具有位于轮胎生产线上的目标线（106）的照相机（105） 穿过所述照相机（105）的光学平面（107）; （110），第二光源（108）和第三光源（109），所述第二光源（108）和所述第三光源（109）相对于所述光学平面 （107）并且相对于所述第一光源（110）对称; o其中所述第一光源（110）适于在所述表面部分上发射第一漫射光辐射，并且所述第二光源（108）和第三光源（109）适于发射第二掠过光辐射，并且第三光源 在所述轮胎（200）的与所述目标线（106）重合或接近的所述轮胎（200）的表面部分上掠过光辐射; 和反射元件（150），其限定垂直于所述光学平面（107）布置的反射平面，所述反射元件（150）布置在所述第二光源（108）和第三光源（109）之间，所述反射元件（150 ）适于将所述目标线（106）反射一个包括在大约60°和大约60°之间的角度。 和约120°; 并且其中所述反射平面与穿过所述反射目标线的所述相机（105）的聚焦平面（121）之间的最小距离小于所述第一光源（110），第二光源（108） ）或第三光源（109）和所述聚焦平面（121）。

公开(公告)号：WO2017109688A1

公开(公告)日：2017-06-29

申请号：PCT/IB2016/057811

申请日：2016-12-20

Applicant: PIRELLI TYRE S.P.A. ,  POLITECNICO DI TORINO

Inventor： BOFFA, Vincenzo ,  HELD, Alessandro ,  REGOLI, Fabio ,  MONTRUCCHIO, Bartolomeo ,  BALLARDINI, Valeriano ,  CASADIO TOZZI, Giuseppe

IPC: G01M17/02

CPC classification number: G01M17/027

Abstract: Apparatus (1) and relevant method for checking tyres, comprising an acquisition system (4) of digital images of a surface of a tyre mounted on a support frame (2) and comprising : a camera (5) having a focal plane (6) and a first optical axis (7), and an illumination system (8) adapted to illuminate at least a focal point (Fl) placed on the intersection of the focal plane with the first optical axis; the apparatus comprising a scanning system (10) mounted on the support frame adapted to detect a spatial conformation of at least one internal surface portion of the tyre; wherein a first reference plane (11) passes through the first optical axis (7), the illumination system (8) and the scanning system (10), and wherein, with respect to a second reference plane (12) orthogonal to the first reference plane and passing through the first optical axis, the illumination system (8) lies in a half-space opposite a half-space in which the scanning system (10) lies.

Abstract translation: 一种用于检查轮胎的设备（1）和相关方法，包括：安装在支撑框架（2）上的轮胎表面的数字图像的采集系统（4），并且包括：照相机（5） ）具有焦平面（6）和第一光轴（7）;以及照明系统（8），适于照射放置在所述焦平面与所述第一光轴的交点上的至少一个焦点（F1）; 该设备包括安装在支撑框架上的扫描系统（10），其适于检测轮胎的至少一个内表面部分的空间构造; 其中第一参考平面（11）穿过所述第一光轴（7），所述照明系统（8）和所述扫描系统（10），并且其中相对于与所述第一参考平面正交的第二参考平面 并且穿过第一光轴，照明系统（8）位于与扫描系统（10）所在的半空间相对的半空间中。

公开(公告)号：WO2017103814A1

公开(公告)日：2017-06-22

申请号：PCT/IB2016/057620

申请日：2016-12-14

Applicant: PIRELLI TYRE S.P.A.

Inventor： HELD, Alessandro ,  BOFFA, Vincenzo ,  REGOLI, Fabio ,  BALLARDINI, Valeriano ,  CASADIO TOZZI, Giuseppe

IPC: G01M17/02 ,  G01N21/95 ,  G01N21/952 ,  B29D30/00

CPC classification number: G01M17/027 ,  B29D30/0633 ,  B29D2030/0066 ,  G01N21/9515 ,  G01N21/952

Abstract: Device (1) and related method for the analysis of tyres comprising : - a support frame (2), - a flange (3), - a first image acquisition system (4), preferably two-dimensional, comprising a first camera (5), having a first optical axis (6), a first focal plane (7), a first focal point (Fl) and a first depth of field, and a first illumination system (10) adapted to illuminate around the first focal point (Fl); - a second image acquisition system (11), preferably three-dimensional, comprising a second camera (12), having a second optical axis (16), a second focal plane (17), and a second depth of field, and a second illumination system (13), wherein there is at least one translation plane (22) passing through the first focal point (Fl) and substantially orthogonal to the first optical axis (6), and also passing through an intersection region (23a) between the second optical axis and the second depth of field.

Abstract translation: 一种用于分析轮胎的设备（1）和相关方法，包括： - 支撑框架（2）， - 法兰（3）， - 第一图像采集系统（4） 其包括具有第一光轴（6），第一焦平面（7），第一焦点（F1）和第一景深的第一照相机（5），以及适用于第一照明系统 以照亮第一焦点（F1）周围; - 第二图像采集系统（11），优选三维，包括具有第二光轴（16），第二焦平面（17）和第二景深的第二相机（12），以及第二相机 照明系统（13），其中存在穿过第一焦点（F1）且基本上正交于第一光轴（6）并且还穿过第一焦点（F1）之间的相交区域（23a）的至少一个平移平面（22） 第二光轴和第二景深。

公开(公告)号：WO2017093892A1

公开(公告)日：2017-06-08

申请号：PCT/IB2016/057184

申请日：2016-11-29

Applicant: PIRELLI TYRE S.P.A.

Inventor： BOFFA, Vincenzo ,  TERSI, Luca ,  BALLARDINI, Valeriano

IPC: G01M17/02

CPC classification number: G01M17/027

Abstract: Method and apparatus (18) for checking tyres (2) for vehicle wheels wherein it is provided to: feed a tyre (2) to be checked to a checking station (27) with a sidewall (11 ) of the tyre (2) laid on a supporting portion (36) of a rotating table (35), wherein the supporting portion (36) lies on a plane and the rotating table (35) has an axis of rotation (Z) perpendicular to said plane; and carrying out a centring operation adapted to align, in said plane, the axis of rotation (R) of the tyre (2) with the axis of rotation (Z) of the rotating table (35). The centring operation comprises the identification, in said plane, of the axis of rotation (R) of the tyre (2) by: a) acquisition of an image of the tyre (2) laid on said supporting portion (36) of the rotating table (35); b) definition, in the acquired image, of a number n of analysis directions α1, α2, intersecting at one selected central point (Pc), with n and i integers, n>1 and 1 ≤ i ≤ n; c) for each analysis direction αi' definition, in the acquired image, of a number m of potential axes of symmetry S i1 , S i2 ,.. s ij , S im , perpendicular to the analysis direction a\, where m and j are integers, with m>1 and 1 ≤ j ≤ m; calculation of a level of symmetry of the image with respect to each of said potential axes of symmetry S i1 , S i2 ,.. S ij ,.. S im , wherein said level of symmetry is indicative of the probability that the centre of the tyre (2) is on the respective potential axis of symmetry Si1, Si2, Sij, Sim; determination of a probability distribution Pal indicative of a variation of said level of symmetry along said analysis direction a,; d) determination of a centre of the tyre (2) on the basis of a cumulative probability distribution P merged obtained through a combination of the probability distributions P xi calculated for said analysis directions α 1 , α 2 ,.. α i ,...α n ) identification of the axis of rotation (R) of the tyre (2) in an axis that passes through said determined centre and perpendicular to said plane.

Abstract translation: 一种用于检查车轮的轮胎（2）的方法和设备（18），其中它被设置成：将待检查的轮胎（2）供给到具有侧壁（11）的检查站（27） ）布置在旋转台（35）的支撑部分（36）上，其中支撑部分（36）位于平面上并且旋转台（35）具有垂直于旋转轴线（Z）的旋转轴线 到所述飞机; 并进行适应于在所述平面中使轮胎（2）的旋转轴线（R）与旋转台（35）的旋转轴线（Z）对准的定心操作。 对中操作包括通过以下步骤在所述平面中识别轮胎（2）的旋转轴线（R）：a）获取放置在旋转的所述支撑部分（36）上的轮胎（2）的图像 表（35）; b）在获取的图像中定义在一个选择的中心点（Pc）处交叉的n个分析方向α1，α2，n和i整数n> 1和1≤i≤n; c）对于每个分析方向αi'在所获取的图像中定义数目为m的潜在对称轴S i1，S i2，s s， 垂直于分析方向a 1，其中m和j是整数，其中m> 1且1≤j≤m; 计算图像相对于每个所述潜在对称轴S i1，S i2，...，S ij的对称性水平。 其中所述对称程度表示轮胎（2）的中心位于相应的潜在对称轴线Si1，Si2，Sij，Sim上的概率; 确定指示沿着所述分析方向a的所述对称水平的变化的概率分布Pal， d）基于通过针对所述分析计算的概率分布P xi的组合获得的累积概率分布P merge，获得轮胎（2）的中心的确定 方向α1，α2，ααi，...αn，n）的轴的识别 的轮胎（2）在穿过所述确定的中心并垂直于所述平面的轴线上的旋转（R）

公开(公告)号：WO2015079370A1

公开(公告)日：2015-06-04

申请号：PCT/IB2014/066243

申请日：2014-11-21

Applicant: PIRELLI TYRE S.P.A.

Inventor： BOFFA, Vincenzo ,  PECE, Gabriele ,  CASADIO TOZZI, Giuseppe ,  ANTOJ, Riccardo ,  BALLARDINI, Valeriano

IPC: G01M17/02

CPC classification number: G01M17/024 ,  B29D30/0633 ,  B29D2030/0635 ,  G01M17/02

Abstract: An apparatus (1 ) for controlling tyres comprises a support plane (2) configured for receiving a tyre (3) with axial middle line plane (4) parallel to the support plane, defining an abutted lateral portion (10a) and a free lateral portion (10b) arranged at a specific height with respect to the support plane. A thrust element (23) is configured for applying, to a measurement surface of the free lateral portion (10b), a force (F) directed towards the support plane. A positioning actuator (19) is operatively associated with the thrust element (23) and configured for moving the thrust element (23) with at least one motion component perpendicular to a rotation axis (X) of the tyre. The apparatus also comprises devices for modifying the angular position of the measurement surface. A control unit is programmed for detecting a first value (U1 ) of output data at each position of the measurement surface as a function of a first value (11 ) of input data maintained substantially constant along at least one complete rotation of the measurement surface around the rotation axis (X) and for detecting a second value (U2) of the output data at each position of the measurement surface. The second value (U2) of the output data corresponds with a second value (I2) of the input data maintained substantially constant along at least one complete rotation of the measurement surface. The control unit comprises a module programmed for calculating, at each position of the measurement surface, a difference (D) between the second value (U2) of the output data and the first value (U1 ) of the output data.

Abstract translation: 一种用于控制轮胎的装置（1）包括：支撑平面（2），其构造成用于容纳轮胎（3），所述轮胎（3）具有平行于所述支撑平面的轴向中间线平面（4），限定抵靠的侧部（10a）和自由横向部分 （10b）相对于支撑平面布置在特定的高度。 推力元件（23）构造成向自由侧向部分（10b）的测量表面施加指向支撑平面的力（F）。 定位致动器（19）可操作地与推力元件（23）相关联并且构造成用至少一个垂直于轮胎的旋转轴线（X）的运动分量移动推力元件（23）。 该装置还包括用于修改测量表面的角位置的装置。 控制单元被编程用于在测量表面的每个位置处检测输出数据的第一值（U1），作为沿着测量表面的至少一个完整旋转保持基本恒定的输入数据的第一值（11）的函数 旋转轴（X），并且用于检测测量表面的每个位置处的输出数据的第二值（U2）。 输出数据的第二值（U2）对应于沿测量表面的至少一个完整旋转保持基本恒定的输入数据的第二值（I2）。 控制单元包括被编程用于在测量表面的每个位置处计算输出数据的第二值（U2）与输出数据的第一值（U1）之间的差（D）的模块。