JP4412815B2 - Position measuring apparatus and position measuring method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a position measurement device for performing position measurement and position setting in a construction site, indoor interior work, and the like.
[0002]
[Prior art]
The most common three-dimensional position measuring device is a GPS (Global Positioning System).
[0003]
GPS receives radio waves emitted from artificial satellites and determines the positions of measurement points. In addition, there is a type in which a target object tracking function is provided in a total station which is an automatic surveying instrument, and a prism is provided in the target object to measure the position of the target object.
[0004]
In the measurement method using the total station, tracking light is emitted from the total station, the tracking light is reflected by the prism, and the reflected light is received by the total station so that the target object is detected, and the target object is detected by the range finder. It measures the distance to an object.
[0005]
[Problems to be solved by the invention]
Measurement and position setting using the above GPS 3D measuring device requires radio waves from artificial satellites, so radio waves necessary for surveying cannot be received indoors or in places with radio interference, etc., so use is limited However, there is a problem that it cannot be used.
[0006]
In addition, in order to detect a target object in a total station equipped with a tracking function in recent years, it is necessary to scan the tracking light randomly in the vertical and horizontal directions until the position where the tracking light is reflected by the prism is detected all around. There is a long working time. Further, since the total station uses a theodolite equipped with a distance measuring instrument as a basic device, there is a problem that the structure becomes complicated and expensive.
[0007]
In view of such circumstances, the present invention uses a rotating laser device, is a simple and inexpensive device, and is surely simple regardless of the outdoors, indoors, places where there are obstacles affecting radio wave reception, etc. Thus, the position of the object can be quickly measured or the target object can be positioned at a predetermined position.
[0008]
[Means for Solving the Problems]
The present invention comprises a rotating laser device that rotates and irradiates a laser beam at a predetermined height, and a measurement point indicator device that has a reflecting portion that receives the laser beam and reflects it toward the rotating laser device. The point indicator device relates to a position measuring device having means for indicating a measuring position, a two-dimensional inclination sensor for detecting the inclination of the device, and a distance measuring means for measuring a distance to the measuring position, and a laser beam is previously applied. It comprises a rotary laser device that irradiates and rotates at a predetermined inclination and a measurement point index device that has a reflecting portion that receives the laser beam and reflects it toward the rotary laser device, and the measurement point index device indicates a measurement position. And a position measuring device having a two-dimensional tilt sensor for detecting a tilt of the device and a distance measuring unit for measuring a distance to the measuring position, and the rotating laser device is rotated by the rotation laser device. A main body for rotating the laser beam, a measuring unit for measuring up to the measuring point index device, and a transmitting unit for transmitting a measurement result to the measuring point index device, the measuring point index device transmitting And a position measuring device having a calculation program for calculating a position indicating the received measurement result based on a measurement result obtained by measuring the received measurement result with the main body of the device. A main body that rotates and irradiates light; a measurement unit that performs measurement up to the measurement point index device; and a transmission unit that transmits a measurement result to the measurement point index device. The present invention relates to a receiving means for receiving a measurement result, a position measuring device having a display unit for calculating a position to be indicated based on the received measurement result, and displaying the result, and the rotating laser device is connected to the measurement point. Measure the distance to the target device and the direction angle, the measuring point index device measures the distance to the measuring position and the inclination of the measuring point index device itself, and calculates the indicated position based on the measurement result from the rotating laser device And a position measurement device comprising a program for obtaining a predetermined result based on the calculation result, and a rotary drive unit for rotating the main body by the rotary laser device, and the laser beam to be rotated. A direction detector that detects and detects the measurement direction of the measurement unit provided in the main body, and the direction of the laser beam reflected from the measurement point indicator device matches with the direction of measurement detected by the direction detector In addition, the present invention relates to a position measurement device that controls the rotation drive unit with the measurement unit directed toward the measurement point index device, and the main body unit scans the laser beam to be rotated along the rotation direction. And a position measuring device having a vertically movable indicator rod for indicating a measurement position. The present invention relates to a position measuring device in which a reflecting portion is vertically supported by a universal support means, and the measuring point indicator device includes a main frame that supports the reflecting portion, and the light receiving portion is emitted from the main body portion. A reflecting surface for reflecting the distance measuring light is provided, and a transmission window is provided adjacent to the reflection surface. The main frame includes a light receiving element for receiving the distance measuring light through the transmission window. Relates to a position measuring device provided with a diffusing lens, and the indicator rod is extendable, and relates to a position measuring device that indicates a measurement point at the tip, and to a position measuring device in which the indicator rod is a scale. In front of you The indicating rod is movable or extendable, and is related to a position measuring device that measures the distance to the measuring position indicated by detecting the moving amount or the expanding / contracting amount of the indicating rod, and the measuring point that indicates the measuring position. A position measuring device comprising an index device and a rotating laser device for measuring a distance and a direction angle to the measurement point index device, the height of which is indicated by the laser beam, wherein the measurement point index device is a measurement position based on the laser beam. And a calculation program for calculating an indicated position based on a measurement result from the rotating laser device, the rotating laser device instructing the measuring point indicator device A first step of detecting and measuring a known point; a second step of recognizing that the rotary laser device is a reference position by communication means from the measurement point index device; A third step in which the rotating laser device measures the measurement point index device for indicating a fixed point; a fourth step in which the measurement point index device measures the height of a reference position and the inclination of the measurement point index device itself; The present invention relates to a position measuring method for specifying an indicated position, which includes a fifth step for specifying an indicated position from the measurement results of four steps and the third step, and also to a measurement point index device for indicating a measurement position and the measurement point index device. A position measuring device comprising a rotating laser device for measuring a distance and a direction angle of the measuring point index device, wherein the measuring point index device measures the distance to the measuring position and the inclination of the measuring point index device itself with reference to the laser beam. In addition to calculating the indicated position based on the measurement result and the measurement result from the rotary laser device, a calculation program and a program for obtaining a predetermined result based on the calculation result are provided. The rotating laser device recognizes that the rotating laser device is a reference position by a first step of detecting and measuring a known point indicated by the measuring point index device and a communication means from the measuring point index device. A second step, a third step in which the rotating laser device measures the measurement point indicator device for indicating a measurement point, and a second step in which the measurement point indicator device measures the height of a reference position and the inclination of the measurement point indicator device itself. Position measurement that obtains a predetermined result comprising four steps, a fifth step that calculates the indicated position from the measurement results of the fourth step and the third step, and a sixth step that executes the program based on the calculation result It concerns the method.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0010]
The present invention irradiates and rotationally scans a visible laser beam to form a reference line and a reference plane, receives the laser beam from the rotary laser device, and reflects the laser beam toward the rotary laser device. A measuring point index device (target object) that measures the horizontal position and height of the point indicated by the measuring point index device.
[0011]
The rotating laser device indicates a reference height with a laser beam to the measurement point indicator device, and provides position information to the measurement point indicator device from the measured distance and direction angle. The measuring point index device measures the distance (length) between the instructed measuring point and the laser beam, and detects the tilt of the device itself. The position information of the measurement point index device is corrected based on the distance and the inclination, and the position of the designated measurement point is obtained. As a case where the present invention is implemented, (1) when obtaining the position of a measurement point, (2) the position may be determined based on data.
[0012]
FIG. 1 shows a main part of a rotary laser device 1, which is provided with a main body 2, a rotating part 3 that is rotatably provided on the main body 2, and the main body 2 attached thereto. A reference device which is composed of a rotating device 4 for rotating the unit 2 and a distance measuring unit 5 which is detachably provided on the main body unit 2 and has a predetermined polarization (preferably circularly polarized light). A reference light emitting unit 6 that emits light, a light receiving unit 7, an inclination detecting unit 8, and a control unit 9 (described later) are provided. The measuring point index device 10 is set up at the measuring point so as to face the rotating laser device 1.
[0013]
The reference light emitting unit 6 will be described.
[0014]
The reference light emitting unit 6 is provided concentrically with the rotation axis of the rotating unit 3 and includes a light emitting element 11 typified by a semiconductor laser element. The laser beam 27 emitted from the light emitting element 11 is converted into a parallel beam by the condenser lens 12, passes through the half mirror 13, is converted into circularly polarized light by the ¼λ wavelength plate 20, and is emitted to the rotating unit 3. The reflected laser beam reflected from the measuring point index device 10 and incident on the reference light emitting unit 6 again is linearly polarized by the 1 / 4λ wavelength plate 20 and the half mirror 13 is converted to the 1 / 4λ wavelength plate 20. The reflected laser beam that has passed through is reflected toward the light receiving unit 7.
[0015]
The light receiving unit 7 will be described.
[0016]
A condensing lens 14 and a polarizing beam splitter 15 are disposed on the reflection optical axis of the half mirror 13, and a light receiving element 16a is disposed on the transmission optical axis of the polarizing beam splitter 15, and a light receiving element 16b is disposed on the reflection optical axis. It is installed. The reflected light reflected from the measurement index device 10 and incident through the rotating unit 3 is reflected by the half mirror 13, condensed by the condenser lens 14, and deflected by the polarizing beam splitter 15. Depending on the state, it is transmitted toward the light receiving element 16a or reflected toward the light receiving element 16b, forms an image on the light receiving surfaces of the light receiving elements 16a and 16b, and is detected by the light receiving elements 16a and 16b. The light reception signals of the light receiving elements 16a and 16b are detected and detected by the detection circuit (not shown) as the measurement point index device 10. Based on the detection of the measurement point index device 10 by the light receiving unit 7, the rotation unit 3 to be described later is controlled so as to perform reciprocal scanning by inverting the laser beam at the position of the measurement point index device 10.
[0017]
The inclination detector 8 will be described.
[0018]
The tilt detector 8 has a configuration in which an X-axis tilt sensor 17 and a Y-axis tilt sensor 18 that are uniaxial tilt sensors are arranged in two orthogonal directions, and when the apparatus main body is installed vertically, The tilt sensor 17 and the Y-axis tilt sensor 18 detect the horizontal plane, and the laser beam 27 forms a horizontal laser plane.
[0019]
Thus, the X-axis tilt sensor 17 and the Y-axis tilt sensor 18 detect the tilt of the rotary laser device 1 in the state shown in FIG.
[0020]
The said rotation part 3 is demonstrated.
[0021]
The prism holder 21 is supported rotatably about the optical axis of the reference light emitting unit 6, and a pentaprism 22 is fixed to the prism holder 21, and the pentaprism 22 is a laser beam from the reference light emitting unit 6. Is deflected at a right angle. The prism holder 21 is provided with a scanning gear 23, and a scanning motor 25 is connected to the scanning gear 23 via a drive gear 24, and the pentagonal prism 22 is rotated by the scanning motor 25. . The prism holder 21 may be provided with an encoder for detecting the rotation position and rotation angle of the prism holder 21 (that is, the pentaprism 22).
[0022]
The pentaprism 22 deflects the laser beam 27 emitted from the reference light emitting unit 6 in the horizontal direction and deflects the reflected laser beam reflected by the measurement point indicator device 10 in the optical axis direction of the reference light emitting unit 6. Then, the light is incident on the light receiving unit 7 through the half mirror 13.
[0023]
The rotating device 4 will be described.
[0024]
The main body 2 is rotatably mounted on the rotating device 4. A lower shaft of the main body 2 is provided with a rotating shaft 55 protruding from the rotating device 4, and the rotating shaft 55 is interposed via a gear train 56. Are connected to the direction control motor 57. The rotary shaft 55 is provided with an encoder 58 so that a relative angle between the rotating device 4 and the main body 2 can be detected. Thus, the main body 2 is rotated by driving the direction control motor 57, and the rotation angle of the main body 2 is detected by the encoder 58.
[0025]
The distance measuring unit 5 will be described.
[0026]
The distance measuring unit 5 includes a range finder 29, a direction detector 30, and a distance calculating unit 31 described later. First, the distance measuring probe 29 will be described.
[0027]
The distance measuring light 39 emitted from the distance measuring instrument 29 is emitted so as to be parallel to a reference plane formed by the laser beam 27. A collimating lens 32 and a prism 33 are disposed on the optical axis. A ranging light emitting unit 34 is provided on one side of the prism 33, and a ranging light receiving unit 35 is provided on the other side. .
[0028]
The distance measuring light emitting unit 34 has a light source 36 that emits the distance measuring light 39. The light source 36 is controlled in light emission state by a light emission control unit (not shown), and the distance measuring light 39 is emitted. Communication data is superposed by means such as modulation.
[0029]
Ranging light 39 from the light source 36 is emitted toward the prism 33 through a collimating lens 37 and an optical fiber 38, and the ranging light 39 emitted from the optical fiber 38 is measured by the optical path switching chopper 41. The distance measuring light 39 is reflected by the prism 33 and emitted by the collimator lens 32 as a parallel light beam. The emitted distance measuring light 39 is reflected by the measurement point index device 10 to be described later, and enters the distance measuring probe 29 through the collimating lens 32.
[0030]
Further, the internal reference light 39a emitted from the optical fiber 38 and switched from the distance measuring light 39 by the optical path switching chopper 41 passes through a relay lens 42 and is internally reflected by the prism 33. Light enters the light receiving unit 35.
[0031]
The distance measuring light receiving unit 35 includes a band pass filter 43 and a density filter 44. The distance measuring light 39 and the internal reference light 39a transmitted through the band pass filter 43 and the density filter 44 pass through an optical fiber 46 and a condenser lens 48. The light is received by the distance measuring light receiving element 49.
[0032]
The distance measuring unit 31 includes a driver (not shown) for driving the light source 36, and also uses the distance measuring light 39 received by the distance measuring light receiving element 49 and a light reception signal of the internal reference light 39a to measure the measurement point index device. The distance up to 10 is calculated.
[0033]
The direction detector 30 includes a reflecting mirror 51 that reflects a part of the laser beam 27 emitted from the pentaprism 22, a condensing lens 52 that converges the laser beam 27 reflected by the reflecting mirror 51, and direction detection. A part of the laser beam 27 from the pentaprism 22 is received by the light reception sensor 53 when the direction of the pentaprism 22 coincides with the optical axis of the reflecting mirror 51. It is like. That is, it is detected whether the laser beam from the pentaprism 22 with respect to the distance measuring direction, that is, the rotating unit 3 is directed in the distance measuring direction. When the laser beam is reciprocally scanned by detecting the measurement point index device 10, the left and right crossing times of the laser beam crossing the direction detector 30 are compared. Will be.
[0034]
The controller 9 will be described with reference to FIG.
[0035]
Signals from the direction detector 30 and the encoder 58 are input to the control unit 9, and signals from the light receiving unit 7, the inclination detection unit 8, and the distance measurement calculation unit 31 are input. The scanning motor 25 is driven by a motor driver 62 based on a control signal from the control unit 9, and the direction control motor 57 is driven by a motor driver 63. Further, the light emitting element 11 is driven by a driver 61 based on a control signal from the control unit 9, and the light emitting element 11 emits light.
[0036]
An operation unit 64 and a display unit 65 are connected to the control unit 9, and work instructions such as operation start / stop are input from the operation unit 64. Display or display of information to be sent to the measurement point index device 10 is performed.
[0037]
The control unit 9 may be divided into the main body unit 2 and the distance measuring unit 5, and when one is integrated, either one may be used as the main control unit. By dividing, the distance measuring unit 5 can be separated.
[0038]
3 and 4, the measurement point index device 10 will be described.
[0039]
A reflection plate 71 is attached to a surface (front surface) of the vertical portion of the main frame 70 in the shape of the L-shaped main frame facing the main body portion 2 via a gimbal mechanism 69 described later, and the back surface of the vertical portion. Is attached with a display unit 72.
[0040]
A V-shaped notch that is an index 71a indicating the reference position of the rotating laser beam 27 is engraved on both side edges of the reflecting plate 71, and a reflecting portion is provided on the front surface. The reflecting portion is in the shape of a vertically long strip. The polarization preserving reflection surface 73a and the polarization conversion reflecting surface 73b, and the polarization preserving reflection surface 74a and the polarization conversion reflecting surface 74b are provided symmetrically with respect to the center line. A retroreflective sheet or the like is used for the polarization preserving reflection surfaces 73a and 74a. When the laser beam 27 is incident, the polarization preserving reflection surfaces 73a and 74a are reflected while preserving the polarization state. The polarization conversion reflection surfaces 73b and 74b are recursion. A quarter-wave plate is further affixed on the reflection sheet, and when the laser beam 27 is incident, the phase is polarized by 90 ° and reflected. Thus, the reflection plate 71, the polarization preserving reflection surface 73a, the polarization conversion reflecting surface 73b, the polarization preserving reflection surface 74a, and the polarization conversion reflecting surface 74b constitute a reflecting portion.
[0041]
A rectangular distance measuring reflecting surface 75 is provided below the reflecting surfaces 73a, 73b, 74a, 74b, and a light receiving window 76a is formed at the center of the distance measuring reflecting surface 75. A light receiving window 76b is formed in the main frame 70 so as to face the light receiving window 76a, and the distance measuring light 39 is received by the light receiving element 78 through the light receiving window 76b. The light receiving window 76a may be adjacent to the distance measuring reflection surface 75, even if it is not the center.
[0042]
The display unit 72 includes a signal processing unit 79 that separates and extracts communication data from the distance measuring light 39 from the light receiving element 78. The distance between the light receiving center of the light receiving element 78 and the straight line connecting the indexes 71a and 71a is equal to the distance between the distance measuring light 39 and the rotating laser beam 27 emitted in parallel. The display unit 72 has a display unit 80 on the back surface, and the information separated and extracted by the signal processing unit 79 is displayed on the display unit 80.
[0043]
In order to detect the measurement point indicator device 10, the light receiving unit 7 includes polarized light, a polarization preserving reflection surface, and two light receiving elements 16a and 16b that receive light according to the polarized light. This is a configuration for receiving noise light and preventing malfunctions easily. However, basically, the reflection plate 71 may be merely two re-reflection surfaces 73a and 74a as shown in FIG. Furthermore, it is possible to use a single re-reflecting surface as long as it does not cause malfunction.
[0044]
In the case of two recurrence reflecting surfaces, a polarization preserving reflecting surface, or a polarization converting reflecting surface, the quarter-wave plate 20 for converting the circularly polarized light of the reference light emitting unit 6 is not necessary, and the light receiving unit 7 also includes one light receiving element.
[0045]
As described above, the reflection plate 71 is attached to the main frame 70 via the gimbal mechanism 69 so that it can always maintain vertical. The gimbal mechanism 69 will be described.
[0046]
A first horizontal shaft 84 is erected at the center of the vertical portion of the main frame 70, and a gimbal frame 86 is swingably attached to the first horizontal shaft 84. A pair of left and right brackets 83 are fixed to the back surface of the reflection plate 71, and the brackets 83 and the gimbal frame 86 are connected via a second horizontal shaft 85 that is orthogonal to the first horizontal shaft 84. A weight 93 is fixed to the lower rear portion of the reflection plate 71 so that the reflection plate 71 is balanced in a vertical posture.
[0047]
A measurement point setting unit 82 is suspended from the horizontal portion of the main frame 70. The measurement point setting unit 82 includes an indicator rod 87, a tape measure 91 (see FIG. 5), and a two-dimensional tilt sensor 88.
[0048]
The indicator rod 87 indicates the measurement position on the ground surface, and has a pointed tip. Further, the indicator rod 87 is a hollow pipe that is nested in a required stage, and can be expanded and contracted. The indicator rod 87 is extended by its own weight. The tape measure 91 is a measuring means in which a linear member 91a or a linear member 91a that can be bent is wound. The linear member 91a is housed inside the indicator rod 87, and the tip of the indicator rod 87 is It is fixed to. Accordingly, the linear member 91a is pulled out as the indicator rod 87 is extended by its own weight, and the height is measured by reading the scale of the tape measure 91 or by detecting the pulling amount of the linear member 91a. Is possible. The measurement result is input to the signal processing unit 79.
[0049]
Note that if the distance between the scale reading position of the tape measure 91 and the index 71a is taken into account as an offset value in advance, the reading of the tape measure 91 immediately takes the height of the measuring point index device 10, that is, the laser beam 27. It becomes the irradiation height. As described above, the reflection plate 71 is vertically supported by the gimbal structure, but the main frame 70 and the indicator rod 87 are integrated and supported by an operator. The two-dimensional tilt sensor 88 detects the tilt of the measurement point index device 10 and the tilt of the front, rear, left and right with respect to the rotating laser device. Based on the inclination, the measurement value and height measurement result from the rotary laser device are corrected to display the position and height of the location pointed by the pointing rod. Further, it is an inclination detector for the operator to hold the indicating rod 87 vertically.
[0050]
The reflection plate 71 may be supported by a spherical seat so as to be suspended from the upper end, not by a gimbal structure. Further, when the ground is concrete or tile, rubber or the like may be attached to the tip if it is not desired to damage the indicator rod 87.
[0051]
The operation will be described below.
[0052]
The rotary laser device 1 is driven from the operation unit 64.
[0053]
First, leveling of the rotary laser device 1 is performed, and the rotary laser device 1 is set in a horizontal state based on a tilt detection signal from the tilt detector 8. Next, the light emitting element 11 emits light, the laser beam 27 is irradiated in the horizontal direction through the pentaprism 22, the scanning motor 25 is further driven, the laser beam 27 is rotated, and the measurement point index device. There are 10 search states.
[0054]
The operator holds the measuring point index device 10 and touches the tip of the pointing rod at a set point or a predicted position to be obtained.
[0055]
The operator adjusts the height position of the reflection plate 71 so that the laser beam 27 passes through the index 71a. When the laser beam 27 is positioned so as to pass through the index 71 a, the height of the distance measuring light 39 coincides with the light receiving center of the light receiving element 78. The laser beam 27 is reflected by passing through the polarization preserving reflection surface 73a, the polarization conversion reflecting surface 73b, the polarization preserving reflection surface 74a, and the polarization conversion reflecting surface 74b, and the reflected light is incident from the pentaprism 22, and the half mirror 13 is reflected. The light receiving elements 16a and 16b receive light through the condenser lens. Note that when the measuring point indicator device 10 is detected by light reception by the light receiving elements 16a and 16b, the laser beam is switched to reciprocating scanning.
[0056]
The polarization state of the laser beam 27 reflected by the polarization preserving reflection surface 73a and the polarization preserving reflection surface 74a does not change, and the laser beam 27 reflected by the polarization conversion reflection surface 73b and the polarization conversion reflection surface 74b is polarized. The phase is deflected by 90 °. The polarization beam splitter 15 splits the light beam in the polarization state of the laser beam 27, the light receiving element 16a receives the reflected light with the polarization preserved, and the light receiving element 16b receives the laser beam 27 whose polarization has been changed. Receive light.
[0057]
Further, from the arrangement of the polarization preserving / reflecting surface 73a, the polarization preserving / reflecting surface 74a, the polarization converting / reflecting surface 73b, and the polarization converting / reflecting surface 74b, the light receiving unit 7 receives a light receiving signal in accordance with a pattern peculiar to the measuring point indicator device 10. The laser beam 27 on each reflecting surface can be recognized and specified by comparing the received light signal, and from which direction the laser beam 27 crosses the measurement point indicator device 10. You can know if you are. Therefore, the noise light and the reflected light from the measurement point index device 10 can be accurately distinguished, and an erroneous operation is prevented.
[0058]
When the distance measuring unit 5 is directed toward the measuring point indicator device 10, the time received by the light receiving unit 7 and the time received by the direction detector 30 are measured, and the measurement is performed based on the rotational speed of the pentaprism 22. An angle difference with respect to the point indicator device 10 can be detected, and the main body 2 may be rotated by the direction control motor 57 by an amount corresponding to the angle difference. Alternatively, while the pentaprism 22 is rotated, the direction control motor 57 is further driven to rotate the main body 2, and the light receiver 7 and the direction detector 30 simultaneously detect the laser beam 27. Find a point to do.
[0059]
When the rotation unit 3 is provided with the encoder 26, the rotation position of the rotation unit 3 that has received the reflected light from the measurement point index device 10 is detected by the encoder 26 and input to the control unit 9. Further, the rotational position of the rotating unit 3 detected by the direction detector 30 is input to the control unit 9.
[0060]
When there is a difference between the position of the rotating unit 3 detected by the encoder 26 and the position of the rotating unit 3 detected by the direction detector 30, the distance measuring unit 5 corrects the measurement point indicator device 10. It is in a state that is not. The deviation of the rotational position of the rotation unit 3 is calculated by the control unit 9, and the control unit 9 drives the direction control motor 57 via the motor driver 63, and controls the gear train 56 and the rotation shaft 55. The main body 2 is rotated through. The amount of rotation of the main body 2 is detected by the encoder 58, and the rotation of the main body 2 is stopped when the amount of rotation of the main body 2 coincides with the amount of displacement of the rotating portion 3. Thus, the distance measuring light 39 emitted from the distance measuring instrument 29 irradiates the distance measuring reflecting surface 75 and the transmission window 76 accurately. In the case of reciprocal scanning, the center and the coincidence are obtained from the left and right time crossing as described above, and the shift amount is corrected.
[0061]
Reflected light from the reflection surface 75 for distance measurement is incident on the distance measuring instrument 29, and the distance between the rotary laser device 1 and the measurement point index device 10 is measured. The distance measurement information is superimposed on the distance measurement light 39 by a method such as modulating the distance measurement light 39.
[0062]
The distance measuring light 39 is received by the light receiving element 78 and further converted into a light receiving signal. The signal processing unit 79 separates and extracts ranging information from the received light signal, corrects the position and height of the measurement point from the height measurement value and the tilt signal from the tilt sensor 88, and causes the display unit 80 to display it. Store in the recording means.
[0063]
This is a case where the position is measured in three dimensions. Further, when specifying the position, the operator holding the measurement point index device 10 determines from the information displayed on the display unit 80 that the position holding the measurement point index device 10 should be set. Judgment is made as to whether or not they match, and if they do not match, it moves so as to be in an appropriate position.
[0064]
When the measurement point index device 10 reaches the set position, the ground surface is marked by the tip of the pointing rod 87, and the measurement result is marked on the ground.
[0065]
FIG. 6 shows an example in which the measuring means in the height direction is a scale, and a scale 90 is engraved on the cylindrical surface of the indicating rod 87.
[0066]
8 and 9 show a first modified example and a second modified example of the measurement point indicator device 10, and the measuring point indicator device 10 shown in the first modified example and the second modified example is shown. Has a configuration for issuing an operation command to the rotary laser device 1 during the measurement, after the measurement is completed, or the like.
[0067]
First, the measurement point index device 10 shown in FIG. 8 includes a light emitting unit 66 that radiates operation light diffusely toward the distance measuring light receiving element 49 of the distance measuring unit 5 or the light receiving unit 7 of the rotary laser device 1. Have. In response to an instruction from an operation button (not shown) provided on the display unit 72, operation light is emitted toward the rotary laser device 1 in accordance with a predetermined modulation. The light receiving unit 7 receives the operation light, and performs a predetermined operation on the rotary laser device 1 side based on the light reception result.
[0068]
The measurement point indicator device 10 shown in FIG. 9 uses the rotated laser beam 27 to issue an operation command. The polarization preserving reflecting surfaces 67a, 67b, 67c, 67d and the polarization converting reflecting surfaces 68a, 68b, 68c are arranged in the rotation direction alternately or with different widths, and the reflected light of the laser beam 27 is modulated. The reflected light is received by the light receiving unit 7 on the rotary laser device 1 side. Thus, the reflecting surfaces of each row arranged in the rotation direction have the same function as a barcode, and a predetermined operation is performed on the rotating laser device 1 side by the pattern detected by the light receiving unit 7. Do. The same effect can be obtained even if the reflecting surfaces of each row are arranged at intervals.
[0069]
Next, a third modification of the measurement point index device 10 will be described with reference to FIGS.
[0070]
As described above, the reflection plate 71 is in a vertical state, but the main frame 70 may be inclined depending on the support state of the operator. When both the reflection plate 71 and the main frame 70 are in the vertical state, as shown in FIG. 4, the centers of the light receiving window 76a and the light receiving window 76b, that is, the light receiving window 76a and the light receiving element 78 are matched. The distance measuring light 39 that has passed through the light receiving window 76b is incident on the light receiving element 78 as it is. However, when the main frame 70 is inclined, the light beam center of the distance measuring light 39 and the light receiving element 78 are shifted. This may cause a problem that a sufficient amount of light does not enter the light receiving element 78.
[0071]
In the third modification, a diffusion lens 100 is fitted in order to diffuse the light beam in the light receiving window 76a. By providing the diffusing lens 100, as shown in FIG. 12, the light receiving element 78 no matter which direction the main frame 70 tilts and the light receiving element 78 is displaced with respect to the optical axis of the distance measuring light 39. A sufficient amount of light enters 78.
[0072]
If there is a tendency that the vertical inclination between the reflecting plate 71 and the main frame 70 is large, a cylinder lens may be used, and if there is a tendency to incline left and right, a concave lens is used. Needless to say, a Fresnel lens may be used as the lens.
[0073]
In the above embodiment, the measurement point index device 10 is opposed to the rotary laser device 1 for the purpose of highly accurate measurement. That is, if the reflecting surface is inclined, the reflected distance measuring light 39 and the laser beam 27 may be inclined to cause an error in the distance measuring distance. However, in normal measurement, such accuracy may not be required. In such measurement, the reflection surface is formed by the gimbal mechanism 69 as in the fourth modification of the measurement point index device 10 shown in FIGS. It may be fixed without being supported. In FIGS. 13 and 14, the same components as those shown in FIGS. 3 and 4 are denoted by the same reference numerals, and description thereof is omitted.
[0074]
As described above, the rotating laser beam 27 of the rotating laser device 1 and the distance measuring light 39 of the distance measuring device are parallel to each other and emitted from the respective devices. This is a development of the conventional rotary laser device, and is because the distance measuring device is attached to the rotary laser device and is provided on the rotating device so as to face the measurement point index device 10.
[0075]
However, if not, the rotating laser beam 27 and the distance measuring beam 39 may be irradiated from the same axis. FIG. 15 shows the rotary laser device 1 that irradiates the laser beam 27 and the distance measuring light 39 coaxially. FIG. 16 shows a fifth modification of the measurement point index device 10 corresponding to the rotary laser device 1.
[0076]
FIG. 15 shows the main part of the rotary laser device 1. The rotary laser device 1 is attached to and detached from the main body 2, the rotating part 3 rotatably provided on the main body 2, and the main body 2. The main body 2 is provided with a reference light emitting unit 6 that emits a reference laser beam, a light receiving unit 7, an inclination detecting unit 8, and a focusing optical system 111. The distance measuring unit 5 has a distance measuring instrument 29.
[0077]
The reference light emitting unit 6 will be described.
[0078]
A first laser diode 113 that emits a visible laser beam 27 is disposed on one side of the beam splitter 112, and the first laser diode 113 and the beam splitter 112 are arranged on the optical axis of the first laser diode 113. A collimator lens 114 that makes the laser beam 27 a parallel beam is disposed between them. Further, a scanning means 96 is provided on the optical axis of the laser beam 27, and an image rotator 108 is rotatably provided.
[0079]
The scanning means 96 increases the apparent brightness by causing the laser beam 27 to reciprocate along the rotation direction even when the rotation of the rotating unit 3 is stopped. Here, as the scanning means, for example, a galvanometer that changes the traveling direction of the incident laser beam by vibrating the mirror, a rotating polygon mirror scanner that rotates the polygon mirror and scans the reflected light, and the direction and pitch of the diffraction grating are spatially determined. For example, a hologram disk scanner or an acousto-optic device that scans the laser beam 27 by forming a plurality of holograms changed in the above manner on the disk and rotating the hologram may be used.
[0080]
In order to associate the irradiation direction by the rotating unit 3 with the deflection of the irradiation direction by the scanning unit 96, the scanning unit 96 is provided with a deflection detecting unit (not shown) for detecting the deflection. As the deflection detecting means, an encoder is used when the scanning means 96 rotates a hologram disk, and when the scanning means 96 uses an acousto-optic element, the frequency is counted temporally, and the rotating portion The actual irradiation direction is detected by calculation in association with the position detected by the third encoder 26.
[0081]
The image rotator 108 is provided on the rotation axis of the perforated bevel gear 110, and the perforated bevel gear 110 is provided so as to be rotatable about the optical axis of the laser beam 27. The image rotator 108 has a function of rotating the projection image twice by one rotation.
[0082]
The beam splitter 112 reflects the first laser diode 113 and the laser beam 27 and transmits the distance measuring light 39 from the light source 36. The laser beam 27 from the first laser diode 113 is reflected by the beam splitter 112, passes through a perforated mirror 115, passes through the focusing optical system 111, is directed to the pentaprism 22, is deflected by the pentaprism 22, and is horizontally Irradiated in the direction. A lens group of the focusing optical system 111 is provided between the beam splitter 112 and the rotating unit 3, and a focusing optical system driving unit (not shown) based on distance measurement data of the distance measuring unit 5. Adjusts the lens position to focus the laser beam 27 on the position of the object to be measured.
[0083]
The said rotation part 3 is demonstrated.
[0084]
The prism holder 21 is supported so as to be rotatable about the optical axis of the laser beam emitted from the beam splitter 112. The pentaprism 22 is fixed to the prism holder 21, and the pentaprism 22 is connected to the reference light emitting unit 6. Is deflected at right angles. The prism holder 21 is provided with the encoder 26 for detecting the rotation of the prism holder 21 (that is, the pentaprism 22).
[0085]
The light receiving unit 7 detects reflected light when the laser beam 27 emitted from the pentaprism 22 is reflected by the measurement point index device 10 and the reflected light enters the rotary laser device 1.
[0086]
The scanning gear 23 is fixed to the prism holder 21, the driving gear 24 is engaged with the scanning gear 23, the driving gear 24 is fitted to the driving shaft 116 of the scanning motor 25, and the scanning motor 25 is engaged. Are driven to rotate. Further, a small bevel gear 117 is fitted on the drive shaft 116, the small bevel gear 117 meshes with the perforated bevel gear 110, and the gear ratio between the perforated bevel gear 110 and the small bevel gear 117 is as follows. The pentaprism 22 and the image rotator 108 are connected at a reduction ratio of 2: 1 by a gear train 109, and the image rotator 108 rotates once for two rotations of the pentaprism 22. It is supposed to do. Thus, the rotation of the laser beam 27 by the scanning unit 96 accompanying the rotation of the pentaprism 22 can be canceled.
[0087]
The tilt detector 8 includes the X-axis tilt sensor 17 and the Y-axis tilt sensor 18 in two orthogonal directions, and detects a horizontal plane when the reflected optical axis of the beam splitter 112 is vertical.
[0088]
Thus, the X-axis tilt sensor 17 and the Y-axis tilt sensor 18 detect the tilt of the rotary laser device 1 in the state shown in FIG.
[0089]
The distance measuring probe 29 has the same configuration as that shown in FIG. 1, and the distance measuring light 39 from the distance measuring instrument 29 is incident from a beam splitter 112 and passes through the main body 2 and the pentaprism 22. Irradiated coaxially with the laser beam. Further, the light is reflected by the measurement point index device 10 and is incident through the pentaprism 22, the beam splitter 112, and the like. When the rotating laser device 1 shown in FIG. 15 faces the measurement point index device 10, the rotation operation of the rotating unit 3 is fixed in the direction of the measurement point index device 10 and distance measurement is performed. By means 96, the laser beam 27 continues to reciprocate.
[0090]
The measurement point index device 10 shown in FIG. 16 is used in the case of being coaxial, and has a distance measuring reflecting surface 75 'on a line connecting the index 71a and the index 71a. The distance measuring reflection surface 75 ′ is provided with a band-pass filter that transmits the distance measuring light 39. The reflected light reflected by the distance measuring reflection surface 75 ′ is only the distance measuring light 39. The light enters the distance measuring unit 5. By providing the distance measuring reflection surface 75 ′, the distance measuring light 39 and the laser beam 27 can be separated, and the S / N of the distance measuring light 39 can be improved.
[0091]
FIG. 17 shows a sixth modification of the measurement point indicator device 10 and also shows a reflection plate 71 portion of the measurement point indicator device 10. The transmission window 76 has a circular shape, and the distance measuring reflection surface 75 has a concentric ring shape with respect to the transmission window 76. An index line 101 is imprinted around the reflection surface 75 for distance measurement.
[0092]
When working outdoors, the rotating laser beam 27 has poor visibility and is difficult to match with the index 71a with high accuracy. In this case, the distance measuring light 39 is visible light, and the distance measuring light 39 is used as a reference light for alignment. Since the distance measuring light 39 is not scanned with spot light, the visibility is high. Positioning is performed based on the distance measuring light 39. That is, the distance measuring light 39 is aligned with the index line 101. Since the distance measuring light 39 and the laser beam 27 are parallel and the distance between them is constant, by aligning the distance measuring light 39 with the index line 101, the measuring point index device 10 can be accurately placed at the horizontal reference position. It can be set.
[0093]
When a visible laser beam is used as the rotating laser beam (laser beam 27) and a visible laser beam is also used as the distance measuring light 39, the reflection member generally has a retrodiffusibility. Rotating laser beams are mixed with the optical system, resulting in noise light. In these cases, if the rotating laser beam and the ranging light are divided into visible laser beam / invisible laser beam, a noise filter is installed in the distance measuring probe 29 to remove the noise light by the noise filter. Can do.
[0094]
When the measurement point index device 10 is used in a place where it receives direct sunlight, the visibility of the laser beam 27 is inferior, and it is difficult to match the scanned laser beam 27 with the index 71a. Cases arise.
[0095]
In the seventh modification of the measurement point index device 10 shown in FIG. 18, the laser beam 27 is accurately detected without relying on the operator's visual recognition, and the measurement point index device 10 is accurately set to the reference height. It can be installed.
[0096]
In the measuring point index device 10, another set of reflecting members 103 is provided between the polarization conversion reflecting surface 73b and the polarization preserving reflecting surface 74a. The reflecting member 103 is provided on the center line of the reflecting plate 71, has a vertically long strip shape, and has two reflecting surfaces divided into two by a diagonal line.
[0097]
One reflecting surface is a retroreflecting surface, which is a polarization preserving reflecting surface 103a that preserves and reflects the polarization state of the laser beam 27, and the other reflecting surface is affixed with a 1 / 4λ phase difference member. This is a polarization conversion reflection surface 103b that changes the polarization state of the light beam 27 and reflects it.
[0098]
Thus, the polarization preserving reflection surface 103a has an inverted triangular shape, the polarization conversion reflection surface 103b has an upright triangular shape, and the length of a line segment when the reflecting member 103 is cut in the horizontal direction is The polarization preserving / reflecting surface 103a gradually decreases, and the polarization converting / reflecting surface 103b gradually increases. The center is the position where the lengths of the two line segments coincide with each other, and the cutting line ahead passes through the index 71a.
[0099]
As described above, the light receiving elements 16a and 16b detect the laser beams 27 having different polarization states. The laser beams 27 cross the reflecting member 103 as shown in FIG. In the case of scanning, a light receiving signal that is received by the light receiving elements 16a and 16b and output from the reflected laser beams reflected by the polarization preserving reflecting surface 103a and the polarization conversion reflecting surface 103b is as shown in FIG. 19B. Thus, by comparing the pulse widths t1 and t2, it can be determined whether the passing position of the laser beam 27 is above or below the center, and the point where the pulse widths t1 and t2 are equal is detected. The center of the point index device 10 can be detected. As a method for displaying the operator's alignment, an arrow or the like may be provided on the display unit, and the arrow may be turned on to indicate the direction in which the measurement point indicator device 10 moves.
[0100]
FIG. 20 shows an eighth modification of the measurement point indicator device 10 in which the reflection part of FIG. 18 is further modified.
[0101]
In the measurement point indexing device 10, the reflecting portion 105 is configured by four reflecting surfaces 106a, 107b, 107a, 106b. The reflecting surfaces 106a, 107b, 107a, 106b are arranged adjacent to each other, and the reflecting surfaces 106a, Reference numeral 107a denotes a polarization preserving reflection surface, and the reflection surfaces 106b and 107b are polarization conversion reflection surfaces. Further, a width changing portion similar to that of the reflecting member 103 is provided at the boundary between the reflecting surface 107b and the reflecting surface 107a.
[0102]
In the case of the measurement point index device 10, when the laser beam 27 crosses the reflection surfaces 106a, 107b, 107a, 106b, the polarization state of the laser beam 27 changes alternately on each reflection surface, and depending on the position. Since the patterns of the widths of the four reflecting surfaces are different, the scanning position of the laser beam 27 can be detected by the outputs from the light receiving elements 16a and 16b.
[0103]
FIG. 21 shows a modification of the rotary laser device 1.
[0104]
In FIG. 21, the same components as those shown in FIG.
[0105]
The main body 2 is fixed to the rotating device 4, and a rotating portion 125 that rotates around the main body 2 around the main body 2 is provided. A ring-shaped driven gear 126 is attached to the rotating portion 125. The rotating device 4 has a motor 127, and a driving gear 128 of the motor 127 is meshed with the driven gear 126. An encoder 129 is provided between the main body 2 and the distance measuring unit 5 (or the rotating unit 125), and the encoder 129 can detect the direction of the distance measuring unit 5.
[0106]
Thus, by driving the motor 127, the distance measuring unit 5 rotates through the drive gear 128 and the driven gear 126. When the rotation unit 125 is driven while rotating the distance measuring unit 5 to rotate and irradiate the laser beam 27, the light receiving element is in a state where the distance measuring unit 5 is not directly facing the measurement point indicator device 10. There is a time lag between the detection of the reflected light 16 and the detection of the laser beam 27 of the direction detector 30, and the distance measuring unit 5 is in a state where the detection deviation between the light receiving element 16 and the direction detector 30 is eliminated. It faces the measurement point index device 10. Therefore, if the detection angle of the encoder 129 is obtained in the state where there is no detection deviation between the light receiving element 16 and the direction detector 30, the distance measuring unit 5 determines the detection angle. The angle is directly opposite.
[0107]
The rotary laser device 1 includes a tilt detector 8 that is a three-dimensional tilt detector, and can be used even when the rotary laser device 1 is tilted by 90 °. In this case, the rotary laser device 1 Thus, a vertical plane can be formed. In the above embodiment, optical communication is used as the communication means, but it goes without saying that wireless communication may be used. Furthermore, since the inclination of the measurement point indicator device 10 is detected by the two-dimensional inclination sensor 88 and the operator does not put out the vertical depending on the sense, the support state of the measurement point indicator device 10 is accurate. If the high accuracy is not required, the gimbal mechanism 69 may be omitted and the reflection plate 71 may be directly attached to the main frame 70.
[0108]
Examples of the present invention will be described below.
[0109]
[Example 1]
Hereinafter, a method for positioning the measurement point based on the position information will be described.
[0110]
The rotating laser device 1 can measure the distance to the measuring point index device 10 and the rotation angle (direction angle). The measurement point index device 10 includes a storage unit that stores position information of a measurement position, and includes a current position calculation program that calculates a current position from a distance and a direction angle from the rotary laser device 1.
[0111]
First, the rotary laser device 1 is arranged at a point that covers the measurement point. Next, the measurement point index device 10 is set up on the known point. The rotating laser device 1 detects the measurement point index device 10 and starts measurement with the rotating laser device 1 main body directed in the direction.
[0112]
A distance and a direction angle are transmitted from the rotary laser device 1 to the measurement index device 10. The measurement point indicator device 10 instructs the current measurement point to be a reference point by communication means. In response to the command, the rotary laser device 1 sets the distance and direction of the reference point. At this time, the direction angle is reset.
[0113]
The measurement point index device 10 is moved from a first point that is a reference point to a second point that is a measurement point. Similarly, the rotary laser device 1 starts measurement. Similarly, the measurement point indicator device 10 detects the height of the measurement point and the inclination of the measurement point indicator device 10 based on the height indicated by the laser beam. A distance and a direction angle are transmitted from the rotating laser device 1 to the measurement point index device 10. The measurement point index device 10 corrects the distance, the direction angle, and the height with the detected inclination, and calculates the current point.
[0114]
[Example 2]
Next, a method for measuring the position, area, etc. will be described.
[0115]
The rotating laser device 1 can measure the distance to the measuring point index device 10 and the rotation angle (direction angle). The measurement point index device 10 includes a current position calculation program for calculating the current position from the distance and direction angle from the rotary laser device 1, the height measurement value, and the tilt of the device. Further, for example, in the case of geodetic work, a surveying program for measuring the area according to the land shape and calculating the area, distance, inclination, volume and the like from the measurement result is incorporated.
[0116]
First, the rotary laser device 1 is arranged at a point that covers the measurement point. Next, the measurement point index device 10 is set up on the known point. The rotating laser device 1 detects the measurement point index device 10 and starts measurement with the rotating laser device 1 main body directed in the direction.
[0117]
A distance and a direction angle are transmitted from the rotary laser device 1 to the measurement index device 10. The measurement point index device 10 instructs the rotary laser device 1 by communication means that the current measurement point is a reference point. In response to the command, the rotary laser device 1 sets the distance and direction of the reference point. At this time, the direction angle is reset.
[0118]
The measurement point index device 10 is moved from a first point that is a reference point to a second point that is a measurement point. Similarly, the rotary laser device 1 starts measurement. The current position after movement is calculated from the newly transmitted distance and direction angle, the height measured by the measurement point indicator device 10, and the inclination of the device. The measurement point index device 10 stores the current position by communication means and instructs the rotary laser device 10 to prepare for the measurement of the next measurement point. When determining a plurality of points, this is repeated.
[0119]
After the measurement is completed, the built-in survey program is activated to obtain a predetermined survey result such as area, distance between measurement points, inclination, volume, and the like.
[0120]
【The invention's effect】
As described above, according to the present invention, the measurement of the position including the height of the measurement point and the survey of the predetermined point can be easily performed without being limited to the work place. The device search time is greatly shortened and the work efficiency is improved.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram showing an embodiment of the present invention.
FIG. 2 is a control block diagram of the previous embodiment.
FIG. 3 is a front view of a measurement point index device used in the embodiment of the present invention.
4 is a side sectional view of the previous measurement index device, and is a view taken in the direction of arrows AA in FIG. 3;
FIG. 5 is a cross-sectional view of an indicator rod used in the measurement point indicator device.
FIG. 6 is a view showing another example of an indicating rod.
FIG. 7 is a front view of a main part showing another measuring point indexing device according to the present invention.
FIG. 8 is a main part front view showing a first modification of the measurement point indexing device of the present invention.
FIG. 9 is a main part front view showing a second modification of the measurement point indexing device of the present invention.
FIG. 10 is a main part front view showing a third modification of the measurement point indexing device of the present invention.
11 is a cross-sectional view of the main part of the previous measurement point indicator device, and is a view taken along the line BB in FIG.
12 is a view taken along arrow BB in FIG.
FIG. 13 is a front view showing a fourth modification of the measurement point index device of the present invention.
14 is a cross-sectional view of the previous measurement point indicator device, and is a view taken along the line CC in FIG.
FIG. 15 is a schematic configuration diagram showing another embodiment of the present invention.
FIG. 16 is a main part front view showing a fifth modification of the measurement point indexing device of the present invention.
FIG. 17 is a front view of main parts showing a sixth modification of the measurement point indexing device of the present invention.
FIG. 18 is a main part front view showing a seventh modification of the measurement point indexing device of the present invention.
FIGS. 19A and 19B are diagrams showing received light signals when reflected light from a reflecting member is received.
FIG. 20 is a main part front view showing an eighth modification of the measurement point indexing device of the present invention.
FIG. 21 is an explanatory diagram of relevant parts showing still another embodiment of the present invention.
[Explanation of symbols]
1 Rotating laser device
2 Body
3 Rotating part
4 Rotating device
5 Ranging section
6 Reference light emitter
7 Light receiver
8 Inclination detector
10 Measuring point index device
25 Scanning motor
26 Encoder
27 Laser beam
29 Rangefinder
30 direction detector
39 Distance measuring light
57 Directional control motor
58 Encoder
69 Gimbal Mechanism
71 Reflection plate
72 display units
75 Reflective surface for distance measurement
79 Signal processor
80 display section
82 Measurement point setting section
93 weights
96 Scanning means
100 diffuser lens
108 Image Rotator

Claims (14)

A rotating laser device that rotates and irradiates a laser beam at a reference height, and a measurement point index device that has a reflecting portion that receives the laser beam and reflects it toward the rotating laser device,
The rotating laser device comprises a measuring means for measuring a distance and a direction angle to the reflecting portion of the measuring point index device;
A transmission unit for transmitting the measurement result by the measurement means to the measurement point indicator device;
The measuring point indicator device comprises means for instructing a measurement position,
A two-dimensional tilt sensor for detecting the tilt of the measuring point index device;
A length measuring means for measuring the length of up to the measurement position from the reflection portion,
Receiving means for receiving the measurement result transmitted from the rotating laser device;
A position measuring apparatus comprising: a calculation program for calculating the measurement position from the received measurement result, the inclination, and the length . Before Symbol measurement point indicator device calculates the measurement position based on the length received measurement results and the inclination, the position measuring device according to claim 1 provided with the display unit for displaying the results. The measurement point index device has a display unit, calculates the measurement position based on the received measurement result , the inclination, and the length, and sends information necessary for alignment to the display unit based on the calculation result. The position measuring device according to claim 1 or 2 configured to display .   The measurement point index device calculates a measurement position based on a display unit, a received measurement result, the inclination, and the length, and calculates an area, distance, inclination, volume, and the like from the measurement position and the measurement result. The position measuring apparatus according to claim 1 or 2, further comprising a program and configured to display at least one result of area, distance, inclination, and volume on the display unit based on a calculation result of the surveying program. Detecting a body portion in which the rotary laser device is rotated irradiating the laser beam, a rotary drive unit for rotating the main body portion, the measuring direction of the measuring portion provided in the main body to detect the laser beam is projected in rotary irradiation A direction detector, and the measurement unit is directed toward the measurement point indicator device so that the directions of the laser beams reflected from the measurement point indicator device coincide with each other based on the measurement direction detected by the direction detector. The position measuring device according to claim 1 , wherein the position measuring device controls the rotation driving unit. 6. The position measuring apparatus according to claim 5 , wherein the main body includes scanning means for scanning the laser beam irradiated by reciprocation along the rotation direction. The position measuring device according to claim 1, wherein the measuring point indicator device includes an indicating rod that can extend and contract in a vertical direction that indicates a measuring position. 2. The position measuring device according to claim 1, wherein the reflecting portion of the measuring point indexing device is vertically supported by a free support means. Comprising a main frame in which the measuring point indicator device for supporting the reflective portion, the reflective portion is provided with a reflecting surface for reflecting the distance measuring light emitted from the rotary laser system, transmission adjacent the reflecting surface windows are provided, it said main the frame comprises a light receiving element for receiving the distance measuring light through the transparent over the window, the the transmission window of any one of claims 1 to 4 in which the diffusion lens is provided Position measuring device. The position measuring device according to claim 7 , wherein the indicating rod is extendable and indicates a measuring point at a tip. The position measuring device according to claim 10 , wherein the indicating rod is a scale. The indication rod is enabled Shin contraction, by detecting the extension contraction amount of the indicated rod position measuring according to claim 7 or claim 10 for measuring the length to the measuring position designated from the reflective portion apparatus. A position measurement device comprising a measurement point indicator device for indicating a measurement position and a rotating laser device for indicating a reference height with a laser beam and measuring a distance and a direction angle to the measurement point indicator device, the measurement point indicator device Has a calculation program for calculating the indicated position based on the measurement result from the rotating laser device, while measuring the length to the measurement position and the inclination of the measurement point index device itself with reference to the laser beam,
A first step in which the rotating laser device detects and measures a known point indicated by the measuring point index device; and a second step in which the rotating laser device recognizes that the rotating laser device is a reference position by communication means from the measuring point index device. A third step in which the rotating laser device measures the measurement point indicator device for indicating a measurement point; and a fourth step in which the measurement point indicator device measures the height of a reference position and the inclination of the measurement point indicator device itself. If, fourth step and the third position measuring method characterized by and Turkey, such a fifth step for identifying the indicated position from the measurement result of step. A position measuring device comprising a measuring point index device for indicating a measuring position and a rotating laser device for measuring a distance and a direction angle to the measuring point index device, wherein the measuring point index device is a measuring position with reference to a laser beam. While measuring the distance to and the inclination of the measuring point index device itself, calculating the indicated position based on the measurement result and the measurement result from the rotary laser device ,
Based on the computation results with the area, distance, inclination, a program that calculates at least one of the volume,
A first step in which the rotating laser device detects and measures a known point indicated by the measuring point index device; and a second step in which the rotating laser device recognizes that the rotating laser device is a reference position by communication means from the measuring point index device. A third step in which the rotating laser device measures the measurement point indicator device for indicating a measurement point; and a fourth step in which the measurement point indicator device measures the height of a reference position and the inclination of the measurement point indicator device itself. When the position measurement, wherein a fifth step of calculating a pointed position from the measurement result of the fourth step and said third step, and Turkey, such a sixth step of executing the program on the basis of the computation result Method.

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