摘要:
The taking-off and landing target instrument 2 to be used in an automatic taking-off and landing system, comprising a target 37 having as many light emitting elements 44 as required for displaying patterns and a target control unit 38 for controlling light emission of the light emitting elements, wherein the light emitting elements are provided on a taking-off and landing surface of the target and are arranged so that a target mark 43 having the center of pattern under all turned-on status is formed, and wherein the target control unit controls a light emission so as to display firstly all turned-on patterns where all of the light emitting elements are turned on, and next, so as to display the light emitting elements in a predetermined pattern.
摘要:
The invention provides an automatic taking-off and landing system, comprising a flying object and a taking-off and landing target, wherein the flying object has an image pickup device 21 for taking images found in downward direction, navigation means 4, 5, 6, 8, 9, 10 and 11, and a control unit for processing images acquired by the image pickup device and for controlling the navigation means, and wherein the control unit calculates a positional relation between the taking-off and landing target and the flying object based on the image of the taking-off and landing target as acquired by the image pickup device and controls taking-off and landing operations of the flying object based on a result of the calculation.
摘要:
A tilt detecting device to be installed in a system where installation position is changed, characterized in that the tilt detecting device comprising at least one bubble tube, a light emitting element having an optical axis perpendicularly crossing an axis of the bubble tube and for emitting a light beam to pass through the bubble tube, and a photodetection element for receiving the light beam passing through the bubble tube, wherein tilting is detected based on photodetecting condition of the photodetection element, and the position of the system is changed in a direction rotating around the axis of the bubble tube.
摘要:
A position determining system is disclosed, which has a simplified configuration capable of producing a plurality of phantom planes simultaneously. The improved system according to the present invention consists of a light receiving and sensing device that includes a body having means for sending data on elevation- and depression-angles and horizontal angles, and a phantom plane determining function for determining phantom planes, so as to display or output differential angles of elevations and depressions in relation with the phantom surfaces produced from the data received from the body.
摘要:
An incremental encoder has a rotor provided with a plurality of indices and is capable of detecting a reference point or a zero point without turning the rotor one full turn. Graduation lines of a main scale are counted until a detecting means detects an index I₁ and the next index I₂, the angle or the distance between the reference point and the index I₂ is determined on the basis of the counted number of graduation lines of the main scale, the angle or the distance between the position of the index I₂ and an optional position is determined on the basis of the corresponding number of graduation lines of the main scale, and the angle or the distance between the reference point and the optional position is determined by adding the angle or the distance between the reference point and the position of the index I₂ to the angle of the distance between the position of the index I₂ and the optional position.
摘要:
The present invention provides a photodetection apparatus having such an arrangement that when signals from the light receiving means in the photodetection device are sampled at a frequency substantially equal to the lowest frequency at which the source of pulse rays is lighted on, one of the noise signal I nc due to the pulsed illumination as from the fluorescent lamp and the normal output signal I nc from the laser beam necessarily presents for each of the sampling periods. In the preferred forms, output signal values sampled in the number of cycles corresponding to at least three times the sampling period are compared with each other. If it is judged that one output signal is larger than the other two output signals which are substantially equal to each other, it is determined that the one output signal is a normal output signal I sc from the laser beam. The one output signal is then taken for the subsequent signal processing step. In the other case, all the output signals are determined to be noise signals from disturbance rays as from the fluorescent lamp, including AC components and will not be taken for the subsequent signal processing step. In such a manner, any adverse affection due to the pulsed AC rays can be eliminated.
摘要:
The present invention provides a photodetection apparatus having such an arrangement that when signals from the light receiving means in the photodetection device are sampled at a frequency substantially equal to the lowest frequency at which the source of pulse rays is lighted on, one of the noise signal I nc due to the pulsed illumination as from the fluorescent lamp and the normal output signal I nc from the laser beam necessarily presents for each of the sampling periods. In the preferred forms, output signal values sampled in the number of cycles corresponding to at least three times the sampling period are compared with each other. If it is judged that one output signal is larger than the other two output signals which are substantially equal to each other, it is determined that the one output signal is a normal output signal I sc from the laser beam. The one output signal is then taken for the subsequent signal processing step. In the other case, all the output signals are determined to be noise signals from disturbance rays as from the fluorescent lamp, including AC components and will not be taken for the subsequent signal processing step. In such a manner, any adverse affection due to the pulsed AC rays can be eliminated.
摘要:
A direction detecting apparatus (5) is provided on a supporting pole (6) at a known distance from its lower end and comprises an image pickup device (13) with an optical axis orthogonal to an axis of the supporting pole (6) and an arithmetic processing part (14) for calculating based on an image from the image pickup device. The image pickup device (13) acquires an image (21) which includes an object for which a direction is to be detected. The arithmetic processing part (14) calculates and detects the direction and the tilt of the object from the relation between the position of the object in the image and the optical axis of the image pickup device.
摘要:
A surveying apparatus comprises an observation optical system 1 having an image sensor 8 for outputting a digital image signal and a zoom optical system 7, a reference-pattern projection optical system 18 for making a reference pattern 14 enter the observation optical system in an infinity state and for forming an image on the image sensor, a rotation mechanism 5 capable of rotating the observation optical system and the reference-pattern projection optical system integrally in two directions of horizontal and vertical, a horizontal angle detector 15 and a vertical angle detector 16 for detecting a horizontal angle and a vertical angle of rotation in the two directions of the rotation mechanism, and an arithmetic control unit 9, and in the surveying apparatus, 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.
摘要:
The taking-off and landing target instrument 2 to be used in an automatic taking-off and landing system, comprising a target 37 having as many light emitting elements 44 as required for displaying patterns and a target control unit 38 for controlling light emission of the light emitting elements, wherein the light emitting elements are provided on a taking-off and landing surface of the target and are arranged so that a target mark 43 having the center of pattern under all turned-on status is formed, and wherein the target control unit controls a light emission so as to display firstly all turned-on patterns where all of the light emitting elements are turned on, and next, so as to display the light emitting elements in a predetermined pattern.