Rotary laser emitting apparatus
First Claim
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1. A rotary laser emitting apparatus comprising:
- a rotary body;
a foundation configured to rotatably support the rotary body about an axis;
a laser light emitting section contained in the rotary body and configured to emit laser light in a direction orthogonal to a rotation axis of the rotary body;
a relative slope detecting mechanism configured to detect an amount of deviation of the rotation axis of the rotary body from the axis of the foundation as a relative slope signal;
an absolute slope detecting mechanism disposed in the foundation to detect a slope of the axis of the foundation in relation to a horizontal plane as an absolute slope signal; and
a transmitting section configured to transmit the relative slope signal detected by the relative slope detecting mechanism,wherein the transmitting section is configured to transmit the absolute slope signal detected by the absolute slope detecting mechanism.
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Abstract
A rotary laser emitting apparatus includes a rotary body, a foundation configured to rotatably support the rotary body about an axis, a laser light emitting section contained in the rotary body and configured to emit laser light in a direction orthogonal to a rotation axis of the rotary body, a relative slope detecting mechanism configured to detect an amount of deviation of the rotation axis of the rotary body from the axis of the foundation as a relative slope signal, and a transmitting section configured to transmit the relative slope signal detected by the relative slope detecting mechanism.
8 Citations
13 Claims
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1. A rotary laser emitting apparatus comprising:
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a rotary body; a foundation configured to rotatably support the rotary body about an axis; a laser light emitting section contained in the rotary body and configured to emit laser light in a direction orthogonal to a rotation axis of the rotary body; a relative slope detecting mechanism configured to detect an amount of deviation of the rotation axis of the rotary body from the axis of the foundation as a relative slope signal; an absolute slope detecting mechanism disposed in the foundation to detect a slope of the axis of the foundation in relation to a horizontal plane as an absolute slope signal; and a transmitting section configured to transmit the relative slope signal detected by the relative slope detecting mechanism, wherein the transmitting section is configured to transmit the absolute slope signal detected by the absolute slope detecting mechanism. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 12, 13)
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9. A survey system comprising:
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a rotary laser emitting apparatus comprising a rotary body, a foundation configured to rotatably support the rotary body about an axis, a laser light emitting section contained in the rotary body and configured to emit laser light in a direction orthogonal to a rotation axis of the rotary body, a relative slope detecting mechanism configured to detect an amount of deviation of the rotation axis of the rotary body from the axis of the foundation as a relative slope signal, and a transmitting section configured to transmit the relative slope signal detected by the relative slope detecting mechanism; a receiver configured to receive the laser light emitted from the rotary laser emitting apparatus; and a calculation mechanism configured to calculate an angle of elevation between a point where the receiver is positioned and a point where the rotary laser emitting apparatus is positioned based on a signal of the laser light received by the receiver, wherein the transmitting section includes the laser light source of the laser emitting section and a drive controlling section configured to control the laser light source in accordance with the relative slope signal so as to superimpose the relative slope signal on the laser light emitted from the laser emitting section while the rotary body is rotated, wherein the laser light emitting section has a laser light source, wherein a Phase Shift Keying system is configured to superimpose the relative slope signal on the laser light, and wherein the receiver is configured to receive an alternative current signal of the laser light on which the relative slope signal is superimposed; and the calculation mechanism is configured to full-wave rectify the received alternative current signal of the laser light and to calculate a barycentric position of the rectified received signals.
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10. A survey system comprising:
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a rotary laser emitting apparatus comprising a rotary body, a foundation configured to rotatable support the rotary body about an axis, a laser light emitting section contained in the rotary body and configured to emit laser light in a direction orthogonal to a rotation axis of the rotary body, a relative slope detecting mechanism configured to detect an amount of deviation of the rotation axis of the rotary body from the axis of the foundation as a relative slope signal, and a transmitting section configured to transmit the relative slope signal detected by the relative slope detecting mechanism; a receiver configured to receive the laser light emitted from the rotary laser emitting apparatus; and a calculation mechanism configured to calculate an angle of elevation between a point where the receiver is positioned and a point where the rotary laser emitting apparatus is positioned based on a signal of the laser light received by the receiver, wherein the transmitting section includes the laser light source of the laser emitting section and a drive controlling section configured to control the laser light source in accordance with the relative slope signal so as to superimpose the relative slope signal on the laser light emitted from the laser emitting section while the rotary body is rotated, wherein the laser light emitting section has a laser light source, and wherein the receiver an alternative current signal of the laser light on which the relative slope signal is superimposed; and the calculation mechanism is configured to full-wave rectify the received alternative current signal of the laser light and to calculate a barycentric position of the rectified received signals.
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11. A survey system comprising:
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a rotary laser emitting apparatus comprising a rotary body, a foundation configured to rotatably support the rotary body about an axis, a laser light emitting section contained in the rotary body and configured to emit laser light in a direction orthogonal to a rotation axis of the rotary body, a relative slope detecting mechanism configured to detect an amount of deviation of the rotation axis of the rotary body from the axis of the foundation as a relative slope signal, and a transmitting section configured to transmit the relative slope signal detected by the relative slope detecting mechanism; a receiver configured to receive the laser light emitted from the rotary laser emitting apparatus; a calculation mechanism configured to calculate an angle of elevation between a point where the receiver is positioned and a point where the rotary laser emitting apparatus is positioned based on a signal of the laser light received by the receiver; and an absolute slope detecting mechanism disposed in the foundation to detect a slope of the axis of the foundation in relation to a horizontal plane as an absolute slope signal, wherein the transmitting section is configured to transmit the absolute slope signal detected by the absolute slope detecting mechanism simultaneously with the relative slope signal, and wherein the receiver an alternative current signal of the laser light on which the relative slope signal is superimposed; and the calculation mechanism is configured to full-wave rectify the received alternative current signal of the laser light and to calculate a barycentric position of the rectified received signals.
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Specification
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Current AssigneeKabushiki Kaisha Topcon
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Original AssigneeKabushiki Kaisha Topcon
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InventorsHayashi, Kunihiro, Kamizono, Fumihiko
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Primary Examiner(s)RATCLIFFE, LUKE D
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Application NumberUS12/815,657Publication NumberTime in Patent Office1,295 DaysField of Search356 301- 315, 356 401- 41, 356 501- 515, 356 6- 22, 356/28, 356/28.5, 35613901-1391US Class Current356/139.01CPC Class CodesG01C 15/008 combined with inclination s...
