公开(公告)号：EP0223043A3

公开(公告)日：1989-04-26

申请号：EP86113954.1

申请日：1986-10-08

Applicant: SPECTRA-PHYSICS LASERPLANE, INC.

Inventor： Markley, Theodore J. ,  Cain, Gary L. ,  Meyers, Lawrence J. ,  Teach, Ted L. ,  Rando, Joseph F.

IPC: G01C15/00 ,  G01C5/02

CPC classification number: G01C5/02 ,  G01C15/004

Abstract: A transmitter for an alignment system in which a field of electromagnetic radiation is propagated in a non-planar reference cone is disclosed. The transmitter includes a source (27) for providing a collimated beam of electromagnetic radiation directed parallel to a beam axis. A cantilever strand (105) supports a bob (102) within the beam. The bob (102) has a conical reflecting surface (103) to reflect the collimated beam conically. Optimally, the cantilever strand (105) and bob (102) are chosen to provide a deflection between the bob (102) and plumb which is substantially one-half of any angular error between the beam axis and plumb. In an especially preferred form, a housing (94) surrounds the bob and has inner (95) and outer (96) surfaces which minimize temperature effects on the orientation of the reference field (14). Also, detectors (132) are provided to sense when the angular error between the beam axis and plumb is outside of an acceptable range.

公开(公告)号：EP0219767A3

公开(公告)日：1989-04-26

申请号：EP86113955.8

申请日：1986-10-08

Applicant: SPECTRA-PHYSICS LASERPLANE, INC.

Inventor： Cain, Gary Lynn ,  Goren, Sidney Barry

IPC: G01C15/00

CPC classification number: G01C15/004

Abstract: A laser alignment system includes a transmitter (1) and one or more receivers (2). The transmitter (1) produces an alignment field by projecting laser energy in a non-planar reference cone, and the receivers (2) locate this reference cone with photodetectors. The laser energy in the alignment field is modulated to 8 kHz and the signals produced by the photodetectors are filtered and amplified to increase the range of the system. Each receiver (2) operates a display which indicates when it is aligned in the reference cone, and it produces an out-of-level indication when the transmitter is not properly aligned.

公开(公告)号：EP0468677B1

公开(公告)日：1996-05-15

申请号：EP91306376.4

申请日：1991-07-15

Applicant: SPECTRA-PHYSICS LASERPLANE, INC.

Inventor： deVos, Leon B.C. ,  Schouten, Johannes N.Th.

IPC: G01C15/00 ,  G01S5/16

CPC classification number: G01C15/002 ,  G01S17/87

公开(公告)号：EP0518572A3

公开(公告)日：1993-05-19

申请号：EP92305193.2

申请日：1992-06-05

Applicant: SPECTRA-PHYSICS LASERPLANE, INC.

Inventor： Yowler, Michael Alan

IPC: G01C15/00

CPC classification number: G01C15/004 ,  G01B11/26

Abstract: A laser alignment apparatus (10) is provided for use in positioning workpieces (20,21) relative to one another and first and second spaced-apart substantially parallel reference planes (30,32). The laser alignment apparatus (10) comprises a first projector (100) for providing first and second reference beams of light (102,104) disposed in a substantially orthogonal relationship with respect to one another. A second projector (200) provides third and fourth reference beams of light (202,204) disposed in a substantially orthogonal relationship with respect to one another. The first and second projectors (100,200) are positioned relative to one another so that the first and third reference beams of light (102,202) are substantially collinear with one another and the second and fourth reference beams of light (104,204) are positioned substantially parallel to one another. The second and fourth reference beams of light (104,204) define the first and second substantially parallel reference planes (30,32) and permit the workpieces (20,21) to be positioned relative to one another and the first and second parallel reference planes (30,32).

Abstract translation: 提供激光对准装置（10），用于相对于彼此以及第一和第二间隔开的大致平行的基准平面（30,32）定位工件（20,21）。 激光对准装置（10）包括第一投影仪（100），用于提供以相对于彼此基本正交的关系设置的第一和第二参考光束（102,104）。 第二投影仪（200）提供以相对于彼此基本正交的关系设置的第三和第四参考光束（202,204）。 第一和第二投影仪（100,200）相对于彼此定位，使得第一和第三参考光束（102,202）彼此基本共线，并且第二和第四参考光束（104,204）基本上平行于 另一个。 第二和第四参考光束（104,204）限定第一和第二基本平行的参考平面（30,32），并允许工件（20,21）相对于彼此以及第一和第二平行参考平面 30,32）。

公开(公告)号：EP0501616A3

公开(公告)日：1993-05-05

申请号：EP92300909.6

申请日：1992-02-03

Applicant: SPECTRA-PHYSICS LASERPLANE, INC.

Inventor： Zachman, Mark E. ,  Kidwell, Michael H.

IPC: E02F3/84

CPC classification number: E02F3/845

Abstract: A method and apparatus are disclosed for controlling the cross slope angle cut by the blade of an articulated frame motorgrader (100) being steered through a turn, operated in a straight frame mode, in a crabbed steering position and/or traveling in a non-horizontal plane. The blade angle is sensed and controlled such that the sensed blade angle is maintained substantially equal to a calculated blade angle. In a first embodiment, the blade angle calculation is performed using the equation:
tan BS = (sin τ′ )(tan R) + (cos τ′ )(tan CS) where BS is the required blade slope angle of said blade (114) relative to horizontal; τ′ is a rotational angle of the blade with respect to the blade's direction of travel (112) projected into horizontal; R is an angle between the blade's direction of travel (112) and horizontal; and CS is the desired cross slope angle which is entered by an operator of the motorgrader (100). In a further embodiment, the blade angle calculation is performed using the equation:
tan BS = (sin τ˝ )(tan R′) + (cos τ˝ )(tan CS) where BS is the required blade slope angle of the blade (114) relative to horizontal; τ˝ is the rotational angle of the blade with respect to the blade's direction of travel (112) projected into horizontal with the lateral slope angle of the front steering unit (106) set equal to zero; R′ is an angle between horizontal and the direction of travel (112) of the blade with the lateral slope angle of the front steering unit (106) set equal to zero; and CS is the desired cross slope angle.

公开(公告)号：EP0506943A4

公开(公告)日：1992-12-16

申请号：EP91920566

申请日：1991-10-18

Applicant: SPECTRA-PHYSICS LASERPLANE, INC.

Inventor： RANDO, JOSEPH, F.

IPC: G01B3/00 ,  G01B11/26 ,  G01C15/00 ,  G02B6/00 ,  G02B27/64 ,  G02B7/14

CPC classification number: G01B3/00 ,  G01B11/26 ,  G01C15/002 ,  Y10S33/21

公开(公告)号：EP0468677A3

公开(公告)日：1992-11-25

申请号：EP91306376.4

申请日：1991-07-15

Applicant: SPECTRA-PHYSICS LASERPLANE, INC.

Inventor： deVos, Leon B.C. ,  Schouten, Johannes N.Th.

IPC: G01C15/00 ,  G01S5/16

CPC classification number: G01C15/002 ,  G01S17/87

Abstract: A position sensing system calculates the X-Y-Z coordinates of a point (12) in space using triangulation and determines the orientation of an object located at that point (12). The triangulation calculation is based on the coordinates of at least three retroreflective elements (18) spaced apart from each other and the measured angles between the lines projected radially outward from the point (12) to each of the retroreflective elements (18). The accuracy of the measured angles is achieved by using a rotating member (30) supported by dedicated hardware and controlled by software. The member (30) rotates with a beam of light (16) generated by a light transmitting and detecting device (14) positionable at the point (12). The light transmitting and detecting device (14) receives the beam of light (16) reflected back from the retroreflective elements and generates an output signal in response thereto. A computer processes the output signals for use in calculating the X-Y-Z coordinates of the point (12) and the orientation of the light transmitting and detecting device (14) when it is positioned at the point (12).

公开(公告)号：EP0501616A2

公开(公告)日：1992-09-02

申请号：EP92300909.6

申请日：1992-02-03

Applicant: SPECTRA-PHYSICS LASERPLANE, INC.

Inventor： Zachman, Mark E. ,  Kidwell, Michael H.

IPC: E02F3/84

CPC classification number: E02F3/845

Abstract: A method and apparatus are disclosed for controlling the cross slope angle cut by the blade of an articulated frame motorgrader (100) being steered through a turn, operated in a straight frame mode, in a crabbed steering position and/or traveling in a non-horizontal plane. The blade angle is sensed and controlled such that the sensed blade angle is maintained substantially equal to a calculated blade angle. In a first embodiment, the blade angle calculation is performed using the equation:
tan BS = (sin τ′ )(tan R) + (cos τ′ )(tan CS) where BS is the required blade slope angle of said blade (114) relative to horizontal; τ′ is a rotational angle of the blade with respect to the blade's direction of travel (112) projected into horizontal; R is an angle between the blade's direction of travel (112) and horizontal; and CS is the desired cross slope angle which is entered by an operator of the motorgrader (100). In a further embodiment, the blade angle calculation is performed using the equation:
tan BS = (sin τ˝ )(tan R′) + (cos τ˝ )(tan CS) where BS is the required blade slope angle of the blade (114) relative to horizontal; τ˝ is the rotational angle of the blade with respect to the blade's direction of travel (112) projected into horizontal with the lateral slope angle of the front steering unit (106) set equal to zero; R′ is an angle between horizontal and the direction of travel (112) of the blade with the lateral slope angle of the front steering unit (106) set equal to zero; and CS is the desired cross slope angle.

Abstract translation: 公开了一种用于控制由铰接框架电动分级器（100）的叶片切割的十字斜角的方法和装置，其通过转弯操纵，以直框模式操作，处于棘爪转向位置和/ 水平面。 检测和控制叶片角度，使得感测到的叶片角度基本上等于计算出的叶片角度。 在第一实施例中，使用以下公式执行叶片角度计算：tan BS =（sinτmin）（tan R）+（cos tau min）（tan CS）其中BS是所述叶片（114）的所需叶片倾斜角 ）相对于水平; tau min是叶片相对于投影到水平面上的叶片行进方向（112）的旋转角度; R是刀片行进方向（112）与水平面之间的角度; CS是由电动分级器（100）的操作者输入的期望的交叉斜角。 在另一实施例中，叶片角度计算使用以下等式执行：tan BS =（sin tau sec）（tan R min）+（cos tau sec）（tan CS）其中BS是叶片所需的叶片倾斜角 114）相对于水平; tau sec是前转向单元（106）设定为等于零的相对于叶片的投影方向（112）投影到水平方向上的叶片的旋转角度; R min是前转向单元（106）的横向倾斜角度等于零的叶片的水平和行进方向（112）之间的角度; 而CS是所需的交叉斜角。

公开(公告)号：EP0457548A2

公开(公告)日：1991-11-21

申请号：EP91304314.7

申请日：1991-05-14

Applicant: SPECTRA-PHYSICS LASERPLANE, INC.

Inventor： deVos, Leon B.C. ,  Schouten, Johannes N.TH. M.

IPC: G01C15/00 ,  G01S5/16

CPC classification number: G01C15/002

Abstract: A position sensing system calculates the X-Y coordinates of a point (12) using triangulation and determines the direction in which the point (12) is moving. The triangulation calculation is based on the coordinates of at least three retroreflective elements (18) spaced apart from each other around the periphery of a two-dimensional coordinate frame, and the measured angles between the lines projected radially outward from the point (12) to each of the retroreflective elements (18). The accuracy of the measured angles is achieved by using a rotating member (30) supported by dedicated hardware and controlled by software. The member (30) rotates with a beam of light (16) generated by a light transmitting and detecting device (14) positionable at the point (12). The light transmitting and detecting device (14) receives the beam of light reflected back from the retroreflective elements (18) and generates an output signal in response thereto. A computer (22) processes the output signals for use in calculating the X-Y position of the point (12) and the orientation of the light transmitting and detecting device (14) when it is positioned at the point (12).

Abstract translation: 位置感测系统使用三角测量法计算点（12）的X-Y坐标，并确定点（12）正在移动的方向。 三角测量计算基于围绕二维坐标系的周边彼此间隔开的至少三个回归反射元件（18）的坐标，以及从点（12）向径向向外突出的线之间的测量角度 每个回射元件（18）。 通过使用由专用硬件支撑并由软件控制的旋转构件（30）来实现测量角度的精度。 构件（30）由可在位置（12）定位的光传输和检测装置（14）产生的光束（16）旋转。 光发射和检测装置（14）接收从回射元件（18）反射回的光束，并响应于此产生输出信号。 计算机（22）处理输出信号以用于计算点（12）的X-Y位置和光发射和检测装置（14）位于点（12）时的取向。

公开(公告)号：EP0442193A3

公开(公告)日：1991-10-09

申请号：EP90311055.9

申请日：1990-10-09

Applicant: SPECTRA-PHYSICS LASERPLANE, INC.

Inventor： Winckler, Peter Stanhope ,  Klemer, Daniel Richard ,  Dugan, John Patrick

IPC: G01C15/00

CPC classification number: G01B11/26 ,  G01C15/004

Abstract: An orthogonal light plane generator is associated with a primary light plane generator (100) to convert a portion of a first light plane (108) projected by the primary light plane generator (100) into a second light plane (110) substantially orthogonal to the first light plane. The orthogonal light plane generator comprises a diverter (102) which defines three or more reflecting surfaces for receiving a portion of the first light plane (108) and redirecting that portion as the second light plane (110). The three or more reflective surfaces are oriented relative to one another such that tilting of the orthogonal light plane generator is compensated to maintain the orthogonality between the two light planes. Tilting about one axis results in offset of the second light plane and tilting about a second axis orthogonal to the first results in a shifting of the sector (112) within which the second light plane is projected, but tilting about either axis does not affect the orthogonality between the planes (108,110). Preferably the three or more reflective surfaces are defined by one or more prisms (104,106) formed of an optical material having an index of refraction which enlarges the sector angle encompassed by the second light plane when compared to mirrored surfaces supported within air. The performance of the diverter can be further enhanced by optical devices positioned at its input and/or output. The optical devices can be one or more conventional lenses or angled wedges of optical material.