Abstract: The invention provides a tilt detecting system comprising, a surveying instrument having a distance measuring function and a line laser projecting unit installed as horizontally rotatable for projecting a vertical line laser, and a photodetection device having at least two photodetection units provided at a known interval, a target with a retro-reflectivity and an arithmetic unit, wherein the line laser projecting unit is rotated, each of the photodetection units are made to scan the line laser and the arithmetic unit detects a tilting angle of the photodetection device based on a deviation between a photodetection time moment of each photodetection unit and the distance measurement result of the target of the surveying instrument.

Abstract: The invention provides a surveying instrument, which comprises a measuring unit for performing a distance measurement by projecting a distance measuring light toward an object to be measured, an image pickup unit for picking up an image including the object to be measured, an attitude detecting unit provided integrally with the image pickup unit, and an arithmetic processing unit, wherein the attitude detecting unit has tilt sensors for detecting a horizontal and a relative tilt angle detecting unit for detecting a tilt angle of the measuring unit with respect to the horizontal, and wherein the arithmetic processing unit calculates a tilting of the image with respect to a vertical based on a detection result of the attitude detecting unit and displays vertical lines in the image acquired by the image pickup unit based on this calculation result.

Abstract: The system includes a survey machine 2 having an image-taking section 22, a section 20 of measuring a distance to a target 3 and a section of measuring an angle 11, 12, a pointing rod 4 which is positioned on the measurement point X and includes, at a position deviated from a fixed length L from the measurement point, the prism, and an inclination sheet 5 having a mark 43. The three-dimensional position of the measurement point is measured by equipping the inclination sheet to the pointing rod 4, imaging a mark surface 41 in the image-taking section 22, calculating the inclination angle of the inclination sheet with respect to the eye direction from the survey machine by image-analyzing the mark surface 41, and measuring the three-dimensional position of the measurement point from a three-dimensional position of the prism, the inclination angle of the inclination sheet and the fixed length.

Abstract: The invention provides a measuring instrument, which comprises a light emitting element, a distance measuring light projecting unit, a light receiving unit, a distance measuring unit for performing a distance measurement, a first optical axis deflecting unit for deflecting an optical axis of a distance measuring light, a second optical axis deflecting unit for deflecting a reflected distance measuring light, a projecting direction detecting unit for detecting a deflection angle and a deflecting direction, and a control unit, wherein the distance measuring light is projected through the first optical axis deflecting unit, the reflected distance measuring light is received by a light receiving element through the second optical axis deflecting unit, and the control unit acquires three-dimensional data of a measuring point based on a result of the distance measurement of the distance measuring unit and on a detection result of the projecting direction detecting unit.

Abstract: The invention provides a surveying instrument, which comprises a protractor table installed via an installation base and capable of detecting a lateral rotation angle and a surveying instrument main unit mounted on the protractor table via supporting mechanisms capable of rotating longitudinally, wherein the supporting mechanisms enables the surveying instrument main unit to set in a predetermined angle condition with respect to the protractor table, wherein the surveying instrument main unit comprises a distance measuring unit which has a light emitting element for emitting a distance measuring light, a distance measuring light projecting unit for projecting the distance measuring light, a light receiving unit for receiving a reflected distance measuring light and a photodetector for receiving the reflected distance measuring light and for producing a light receiving signal, and the distance measuring unit performs a distance measurement of an object to be measured based on the light receiving signal from th

Abstract: The invention provides a surveying system, which comprises a surveying instrument, wherein the surveying instrument comprises a measuring unit for performing a distance measurement by projecting a distance measuring light toward an object to be measured and by receiving a reflected distance measuring light from the object to be measured, an image pickup unit having an image pickup optical axis running in parallel to a projection optical axis of the distance measuring light and for picking up an image including the object to be measured, an attitude detecting unit provided integrally with the measuring unit and for detecting a tilt angle with respect to the horizontal of the measuring unit, a coordinates acquiring unit for detecting a position of the surveying instrument and an arithmetic processing unit, wherein a first image of the object to be measured is acquired by the image pickup unit from a first position where coordinates of the first position are acquired by the coordinates acquiring unit, a second i

Abstract: A photographing device comprises an image pickup unit to acquire a moving image and a still image of an object, an image pickup control unit, an angle sensor, an image processing unit for extracting characteristic points from a first still image, tracking the characteristic points in the moving image, identifying the characteristic points in a newest image and selecting an orientation point common to the first still image and the newest image, a storage unit, a display unit, and an arithmetic unit. The arithmetic unit performs relative orientation between the first still image and the newest image based on the orientation point and on detection result of the angle sensor, obtains a distance H to the object and a distance B between points where the images have been photographed and performs guidance display where still images can be acquired sequentially when the B/H value reaches a predetermined value or higher.

Abstract: The invention provides a measuring instrument, which comprises a measuring unit for projecting a distance measuring light toward an object to be measured and for performing a distance measurement by receiving a reflected light from the object to be measured, and an attitude detecting device integrally provided with the measuring unit, wherein the attitude detecting device has tilt sensors for detecting a horizontality and relative tilt angle detectors for tilting the tilt sensors and for detecting a tilt angle of the measuring unit with respect to the horizontality under such condition that the tilt sensors detects the horizontality so that the horizontality is detected by the tilt sensor, and wherein the distance measurement of the object to be measured is performed by the measuring unit, and a vertical angle of a measuring point is determined based on the result of the tilt detection by the attitude detecting device.

Abstract: The invention provides a measuring instrument, which comprises a measuring instrument main unit and an installment base unit for rotatably supporting the measuring instrument main unit in an up-to-bottom direction and in a left-to-right direction, wherein the measuring instrument main unit has a measuring unit for projecting a distance measuring light toward an object to be measured and for performing a distance measurement by receiving a reflected light from the object to be measured, and an attitude detecting device integrally provided with the measuring unit, wherein the attitude detecting device has tilt sensors for detecting a horizontality and relative tilt angle detectors for tilting the tilt sensors and for detecting a tilt angle of the measuring unit with respect to the horizontality under such condition that the tilt sensors detect the horizontality so that the horizontality is detected by the tilt sensors, and wherein the installment base unit has an up-to-bottom motor for rotating the measuring in

Abstract: A surveying apparatus comprises an observation optical system having an image sensor for outputting a digital image signal and a zoom optical system, a reference-pattern projection optical system for making a reference pattern enter the observation optical system in an infinity state and for forming an image on the image sensor, a rotation mechanism capable of rotating in two directions, a horizontal angle detector and a vertical angle detector for detecting a horizontal angle and a vertical angle of rotation in the two directions of the rotation mechanism, and an arithmetic control unit. The arithmetic control unit measures the horizontal angle and the vertical angle of a sighting point based on detection results of the horizontal angle detector and the vertical angle detector and based on a difference between the reference pattern on the image sensor and the sighting point of the observation optical system.

Abstract: A rotation angle detecting apparatus comprises a bearing holder, a rotation shaft rotatably supported by the bearing holder, a shaft portion space formed in the rotation shaft, a bearing holder space formed in the bearing holder, an angle detection pattern in the shaft portion space, a reference pattern and an image sensor in the bearing holder space, an optical system which exists across the shaft portion space and the bearing holder space and forms a projection image of the angle detection pattern and a projection image of the reference pattern on the image sensor, a photodetection switching means for selectively projecting the projection images of the angle detection pattern and the reference pattern onto the image sensor, and an arithmetic device for calculating a rotation angle of the rotation shaft based on a deviation between the reference pattern and the angle detection pattern received by the image sensor.

Abstract: A survey apparatus includes a guide light emitting optical system emitting a fan-like visible laser light elongated in upward and downward directions as a guide light, a cylindrical part having a scanning optical system searching a corner reflector provided on a survey pole and a ranging optical system measuring a distance to the corner reflector, a driving part rotating the cylindrical part about a vertical axis in a horizontal direction and rotating the cylindrical part about a horizontal axis, and an angle measurement part measuring a direction of the cylindrical part. The guide light emitting optical system is rotated about the vertical axis in a horizontal direction integrally with the cylindrical part.

Abstract: The invention provides a surveying instrument, which comprises a horizontal rotating unit and a measuring unit installed on the horizontal rotating unit, wherein the horizontal rotating unit comprises a driving unit for rotating the measuring unit, a horizontal angle detector for measuring horizontal angle data, a first synchronization data generating unit, a first storage unit and a first control unit, wherein the first synchronization data generating unit outputs first synchronization data which indicate a timing at a time of acquisition of the horizontal angle data of the horizontal angle detector, the first control unit associates the horizontal angle data with the first synchronization data and stores in the first storage unit, wherein the measuring unit comprises a distance measuring unit for performing a distance measurement, a vertical angle detector for detecting a vertical angle at a time of distance measurement, a second synchronization data generating unit, a second storage unit and a second contr

Abstract: A simplified distance meter comprises a frame, at least two wheels installed in front and rear of the frame, rotation detectors for detecting rotation of at least one wheel, and tilt detecting means installed on the frame, wherein amount of rotations of the wheels is obtained by the rotation detector, and tilting of the frame corresponding to the amount of rotations is acquired by the tilt detecting means.

Abstract: A surveying instrument includes a pedestal provided with a guide light irradiation unit provided with a light source to irradiate with guide light indicating a collimation direction of the surveying instrument to an operator, a tracking optical system which locks a target, a ranging optical system which ranges a distance to the target, and a control circuit which calculates surveying data by a ranging result of the ranging optical system, and a transmitting and receiving unit which receives survey setting point data regarding a survey setting operation and sends the surveying data obtained by the control circuit.

Abstract: The invention provides an electro-optical distance meter, which comprises a light emitting element for emitting a distance measuring light, signal generators for generating two or more proximity frequencies, intermittent pulse generators for generating a modulation signal in which the two or more proximity frequencies are intermitted respectively and converted to pulses with a predetermined width, a projecting optical system for sequentially switching over and projecting intermittent modulated distance measuring light as converted to pulses with predetermined width by the modulation signal, a photodetection unit for receiving a reflected distance measuring light from an object to be measured and producing an intermittent photodetection signal with a predetermined pulse width, other signal generators for generating frequency signals having a difference of a predetermined frequency with respect to the proximity frequency respectively, a frequency converting unit for performing frequency conversion by mixing the

Abstract: The invention provides an electro-optical distance meter comprising a light emitting element for emitting a distance measuring light, signal generators for generating two or more proximity frequencies, a modulation signal in which the two or more proximity frequencies are intermitted respectively and converted to pulses with a predetermined width, a projecting optical system for sequentially switching over and projecting intermittent modulated distance measuring light as converted to pulses with predetermined width by the modulation signal, a photodetection unit for receiving a reflected distance measuring light from an object to be measured and producing an intermittent photodetection signal with a predetermined pulse width, a reference signal generator for issuing reference frequency signals having a difference of a predetermined frequency respectively, a frequency converting unit for performing frequency conversion by mixing the intermittent photodetection signals from the photodetection unit and the refer

Abstract: The invention provides a posture detecting device, which comprises a tilt detecting unit as rotatably supported around two shafts perpendicular each other to an outer frame and for detecting a tilting from the horizontal, encoders provided on each of the shafts, motors provided so as to rotate each shaft, and a first arithmetic processing unit for driving/controlling the motor based on a detection result from the tilt detecting unit, wherein the first arithmetic processing unit drives the motors so that the tilt detecting unit detects the horizontal based on a signal from the tilt detecting unit when the outer frame is tilted and calculates a posture of the outer frame based on outputs of the encoders when the tilt detecting unit detects the horizontal.

Abstract: The invention provides a surveying instrument, which comprises a light emitting element for emitting a distance measuring light, a distance measuring light projecting unit for projecting the distance measuring light, a light receiving unit for receiving a reflected distance measuring light, a photodetection element for receiving the reflected distance measuring light and for producing a photodetection signal and a distance measuring unit for performing a distance measurement based on a light receiving result from the photodetection element, further comprises a first optical axis deflecting unit disposed on a projection optical axis of the distance measuring light for deflecting an optical axis of the distance measuring light at a deflection angle as required and in a direction as required, a second optical axis deflecting unit disposed on a light receiving optical axis for deflecting the reflected distance measuring light at the same deflection angle and in the same direction as the first optical axis deflect

Abstract: To provide a measurement system in which a desired reflection target is properly identified. The system 1 includes a prism 4, and a total station 3 which, for conducting distance measurement based on reflected distance-measuring rays which are output to the prism 4 and reflected therefrom. The prism 4 is equipped with specific identification information such that the total station 3 sets up the identification information 6, and incorporates the specific identification information 6 of the prism 4 for checking the above specific identification information 6 and the setup identification information 6.