Abstract: [Problem] To enable three-dimensional measurement with good precision. [Solution] When three-dimensional measurement is to be performed with good precision using SLAM or the like, images of marks M1, M2, M3, M4 must be captured from various directions by a single-lens camera. In the present invention, directions of imaging by a camera are displayed as sectors C1, C2, C3, C4. For example, it is understood that whereas sectors C1 and C4 have a large central angle and imaging therein is performed from a wide range of directions, sectors C2 and C3 have a small central angle and imaging therein is performed from a narrow range of directions. A photographer seeing such a display can perform additional imaging, and images can therefore be obtained from a wide range of directions, and three-dimensional measurement can be performed with good precision.

Abstract: [Problem] When inspecting whether each sleeve is in the correct position, to alleviate the burden on an operator and reduce the inspection time. [Solution] When an operator captures an image of a reference marker 3 or a sleeve marker 4 using a camera C, the image is sent to a sleeve marker position analyzing means 5 for the position of each sleeve marker 4, . . . to be analyzed. Then, a sleeve marker position assessing means 6 assesses whether the position of each sleeve marker 4, . . . is suitable, by superimposing the resulting analysis data and a BIM model stored in a BIM model storage means 2. Since it is sufficient for the operator to capture an image of the reference marker 3 or the sleeve marker 4 using the camera C, the burden on the operator can be alleviated, and the inspection time can also be reduced.

Abstract: A movement assisting device includes an imaging unit to take first and second images of an imaging unit from first and second viewpoints; a first calculator to calculate, using the first and second images, first position and orientation of the imaging unit at the first viewpoint and calculate second position and orientation of the imaging unit at the second viewpoint; a second calculator to calculate, using the first and second positions and the first and second orientations, and calculate a first angle between a first axis based on a first optical axis of the imaging unit at the first viewpoint, and a second axis based on a second optical axis at the second viewpoint; a third calculator to calculate the next viewpoint positioned in direction of increase of the first angle; and an output unit to output information prompting movement of the imaging unit in direction of the next viewpoint.

Abstract: A symptom of malfunction regarding operating characteristics of a switch should be detected exactly. A switch operating characteristic monitoring device is comprised of a current sensor that measures a close command current of a switch, an auxiliary switch that outputs signals from at least two or more auxiliary contacts with reference to positions of a contactor, a measurement unit that measures signals from the current sensor and the auxiliary switch, a diagnosis unit that judges whether or not a malfunction occurs, and a display unit that displays a malfunction when a malfunction has been determined. A threshold is obtained in advance from multiple results of an opening/closing test performed beforehand. A calculation is made for characteristic times which are obtained from the close command current and signals from the auxiliary switch during actual operation of a circuit breaker. If a deviation is found by comparison with a threshold, a malfunction is determined.

Abstract: [Problem] When inspecting whether each sleeve is in the correct position, to alleviate the burden on an operator and reduce the inspection time. [Solution] When an operator captures an image of a reference marker 3 or a sleeve marker 4 using a camera C, the image is sent to a sleeve marker position analyzing means 5 for the position of each sleeve marker 4, . . . to be analyzed. Then, a sleeve marker position assessing means 6 assesses whether the position of each sleeve marker 4, . . . is suitable, by superimposing the resulting analysis data and a BIM model stored in a BIM model storage means 2. Since it is sufficient for the operator to capture an image of the reference marker 3 or the sleeve marker 4 using the camera C, the burden on the operator can be alleviated, and the inspection time can also be reduced.

Abstract: [Problem] To enable three-dimensional measurement with good precision. [Solution] When three-dimensional measurement is to be performed with good precision using SLAM or the like, images of marks M1, M2, M3, M4 must be captured from various directions by a single-lens camera. In the present invention, directions of imaging by a camera are displayed as sectors C1, C2, C3, C4. For example, it is understood that whereas sectors C1 and C4 have a large central angle and imaging therein is performed from a wide range of directions, sectors C2 and C3 have a small central angle and imaging therein is performed from a narrow range of directions. A photographer seeing such a display can perform additional imaging, and images can therefore be obtained from a wide range of directions, and three-dimensional measurement can be performed with good precision.

Abstract: A gas circuit breaker having a pair of contacts and a pair of exhaust conductors. An exhaust hole in the pair of exhaust conductors is provided with an insulation cover having an opening. The cover has a guide on an opening end on the side near the pair of contacts and an opening end on the side far from the pair of contacts respectively. The guide has an exhaust hole protective guide and a high-temperature gas passage dividing guide. A first gas flow passage is between an exhaust hole protective guide and a high-temperature gas passage dividing guide, and a second gas flow passage is between the high-temperature gas passage dividing guides. The first gas flow passage is narrower than the second gas flow passage. An end of the exhaust hole protective guide on the first gas flow passage side is projected toward the high-temperature gas passage dividing guide.

Abstract: A symptom of malfunction regarding operating characteristics of a switch should be detected exactly. A switch operating characteristic monitoring device is comprised of a current sensor that measures a close command current of a switch, an auxiliary switch that outputs signals from at least two or more auxiliary contacts with reference to positions of a contactor, a measurement unit that measures signals from the current sensor and the auxiliary switch, a diagnosis unit that judges whether or not a malfunction occurs, and a display unit that displays a malfunction when a malfunction has been determined. A threshold is obtained in advance from multiple results of an opening/closing test performed beforehand. A calculation is made for characteristic times which are obtained from the close command current and signals from the auxiliary switch during actual operation of a circuit breaker. If a deviation is found by comparison with a threshold, a malfunction is determined.

Abstract: A gas circuit breaker having a pair of contacts and a pair of exhaust conductors. An exhaust hole in the pair of exhaust conductors is provided with an insulation cover having an opening. The cover has a guide on an opening end on the side near the pair of contacts and an opening end on the side far from the pair of contacts respectively. The guide has an exhaust hole protective guide and a high-temperature gas passage dividing guide. A first gas flow passage is between an exhaust hole protective guide and a high-temperature gas passage dividing guide, and a second gas flow passage is between the high-temperature gas passage dividing guides. The first gas flow passage is narrower than the second gas flow passage. An end of the exhaust hole protective guide on the first gas flow passage side is projected toward the high-temperature gas passage dividing guide.

Abstract: According to an embodiment, a measuring device includes a projector, an image capturing unit, and a first calculator. The projector projects, onto a target, a first superimposed pattern which is obtained by superimposing a first pattern having a periodic change and a second pattern configured with a first design for specifying a period of the first pattern. The image capturing unit captures the target, onto which the first superimposed pattern is projected to obtain an image. The first calculator performs matching of the first design taken by the image capturing unit, which is included in the first superimposed pattern in the image, with the first design projected by the projecting unit, and calculates correspondence between a second superimposed pattern, which points to the first superimposed pattern captured in the image, and the first superimposed pattern.

Abstract: A movement assisting device includes an imaging unit to take first and second images of an imaging unit from first and second viewpoints; a first calculator to calculate, using the first and second images, first position and orientation of the imaging unit at the first viewpoint and calculate second position and orientation of the imaging unit at the second viewpoint; a second calculator to calculate, using the first and second positions and the first and second orientations, and calculate a first angle between a first axis based on a first optical axis of the imaging unit at the first viewpoint, and a second axis based on a second optical axis at the second viewpoint; a third calculator to calculate the next viewpoint positioned in direction of increase of the first angle; and an output unit to output information prompting movement of the imaging unit in direction of the next viewpoint.

Abstract: According to an embodiment, a feature calculation device includes an obtaining unit, a first calculator, and a second calculator. The obtaining unit is configured to obtain a point sequence group comprising a set of point sequences in which a sequence of a plurality of points is fixed. The first calculator is configured to, for each of the point sequences in the point sequence group, calculate a plurality of values related to a curvature of a shape of the point sequence, with a reference point of the point sequence as a reference, and calculate feature quantities based on the plurality of calculated values. The second calculator is configured to calculate a histogram representing a distribution of the feature quantities of each of the point sequences.

Abstract: According to an embodiment, an identification device includes a feature calculator, an obtaining unit, and an identifying unit. The feature calculator is configured to calculate one or more captured-image features from a captured image. The obtaining unit is configured to, for each predetermined virtual image in map data, obtain identification information in which one or more virtual-image features of the each predetermined virtual image, virtual three-dimensional positions estimated to be image capturing positions of the virtual-image features, and degrees of suitability of the virtual-image features are associated with each other.

Abstract: According to an embodiment, a first calculator, a second calculator, a determination unit, and an informing controller. The first calculator is configured to calculate a projection position on which the point is projected on each image obtained by an image-capturing unit, by using a direction, a first distance from a measurement unit to an irradiated point of an object, and calibration information between both units. The second calculator is configured to calculate a set of reprojection positions by reprojecting a three-dimensional position on each image. The determination unit is configured to extract, from the set, a reprojection position on an image containing the projection position calculated from the point measured and captured within a certain time period, and calculate a second distance between the reprojection and projection positions. The informing controller is configured to prompt to irradiate the object in a direction in which the second distance decreases.

Abstract: According to an embodiment, a measurement device includes a first calculator, a second calculator, and a determination unit. The first calculator is configured to calculate, by using images of an object from viewpoints, first confidence for each of a plurality of first three-dimensional points in three-dimensional space, the first confidence indicating likelihood that the first three-dimensional point is a point on the object. The second calculator is configured to calculate, by using distance information indicating a measurement result of a distance from a measurement position to a measured point on the object, second confidence for each of a plurality of second three-dimensional points in the three-dimensional space, the second confidence indicating likelihood that the second three-dimensional point is a point on the object. The determination unit is configured to determine a three-dimensional point on the object by using the first confidence and the second confidence.

Abstract: According to an embodiment, a measurement device includes an image acquisition unit, a time acquisition unit, and first and second calculators. The image acquisition unit is configured to acquire a reference image that is of an object captured at a first viewpoint as well as a plurality of asynchronous images of the object each captured at a second viewpoint at a time different from when the reference image is captured. The time acquisition unit is configured to acquire an image capture time of the reference image and an image capture time of each asynchronous image. The first calculator is configured to calculate a difference in the image capture times between the reference image and each asynchronous image. The second calculator is configured to calculate a spatial position of the object based on the reference image, the asynchronous images, and a plurality of the differences in the image capture time.

Abstract: According to an embodiment, a measuring device includes an imaging unit to capture an object from a plurality of positions to obtain a plurality of images; a distance measuring unit to measure a distance to the object from each position to obtain a plurality of pieces of distance information; a position measuring unit to measure each position to obtain a plurality of pieces of position information; a first calculator to calculate three-dimensional data of the object using the images; a second calculator to calculate a degree of reliability of each piece of distance information and each piece of position information; and a estimating unit to, among the pieces of distance information and the pieces of position information, make use of such pieces of distance information and such pieces of position information which have the degree of reliability greater than a predetermined value to estimate the scale of the three-dimensional data.

Abstract: According to an embodiment, a measuring device includes a projector, an image capturing unit, and a first calculator. The projector projects, onto a target, a first superimposed pattern which is obtained by superimposing a first pattern having a periodic change and a second pattern configured with a first design for specifying a period of the first pattern. The image capturing unit captures the target, onto which the first superimposed pattern is projected to obtain an image. The first calculator performs matching of the first design taken by the image capturing unit, which is included in the first superimposed pattern in the image, with the first design projected by the projecting unit, and calculates correspondence between a second superimposed pattern, which points to the first superimposed pattern captured in the image, and the first superimposed pattern.

Abstract: According to an embodiment, a feature calculation device includes an obtaining unit, a first calculator, and a second calculator. The obtaining unit is configured to obtain a point sequence group comprising a set of point sequences in which a sequence of a plurality of points is fixed. The first calculator is configured to, for each of the point sequences in the point sequence group, calculate a plurality of values related to a curvature of a shape of the point sequence, with a reference point of the point sequence as a reference, and calculate feature quantities based on the plurality of calculated values. The second calculator is configured to calculate a histogram representing a distribution of the feature quantities of each of the point sequences.

Abstract: A three-phase circuit-breaker includes: three circuit-breaking portion tanks that each have a circuit-breaking portion therein and are filled with insulating gas; an operation unit that opens and closes the circuit-breaking portion; and a driving mechanism that transmits driving force of the operation unit to the circuit-breaking portion. The operation unit is composed of a drive motor and a control power unit that outputs an opening/closing command to the drive motor. The drive motor is provided in the vicinity of the driving mechanism. The control power unit is disposed at a place different from the drive motor. The drive motor and the control power unit are electrically connected.