Kabushiki Kaisha Topcon

Maeda Corporation Limited

Ritsuo Sakimura

Fumio Ohtomo

Kaoru Kumagai

Kazuhiro Ogawa

Kazuaki Kimura

Sora Otaguro

Hiroshi Inaba

Tadayuki Morishita

Yoshihito Saito

Hajime Sinozaki

Hiroaki Ryujin

Koichiro Fuse

The invention provides a safety diagnosis system for structure, which comprises one GNSS receiver installed on an upper floor of a structure, a control device having a storage unit for storing a program which prepares an absolute displacement curve of the structure based on an absolute coordinate measured by the GNSS receiver and a displacement of the absolute coordinate, calculates a maximum inter-layer displacement and a maximum inter-layer deformation angle per each floor based on the absolute displacement curve and prepares an inter-layer deformation angle curve and a judging unit for performing a diagnosis of the safety of the structure based on the maximum inter-layer displacement and the maximum inter-layer deformation angle, and a display unit, wherein the control device calculates the maximum inter-layer displacement and the maximum inter-layer deformation angle per each floor and the inter-layer deformation angle curve based on a displacement of the absolute coordinate and the program and makes the display unit display a diagnosis result of the structure as evaluated by the judging unit based on at least one of the maximum inter-layer displacement and the maximum inter-layer deformation angle or the inter-layer deformation angle curve.

Safety diagnosis system for structure

A surveying device includes a surveying unit configured to measure a direction and a distance to a target object, a control unit configured to control the surveying unit, a communication unit configured to allow the control unit to communicate with an outside network, and a status input unit with which operation status information on the surveying unit is input, wherein the control unit transmits the operation status information input with the status input unit to the outside network via the communication unit.

Surveying device and communication system for the same

The present invention provides a measuring system, which comprises a surveying device installed at a known point, at least one photodetection device to be installed at a measuring point, and a main arithmetic device; wherein the surveying device projects by rotary irradiation a reference plane forming laser beam including two or more fan-shaped laser beams with at least one of the fan-shaped laser beams tilted and a distance measuring light performs distance measurement by receiving a reflected distance measuring light, and performs communication of the distance measurement data between the photodetection device and the main arithmetic device; wherein the photodetection device calculates an elevation angle with respect to the surveying device based on a photodetection signal issued by receiving the reference plane forming laser beam, calculates an elevation position based on the elevation angle and the distance to the surveying device, and performs communication of distance measurement data and elevation position data at least with the main arithmetic device; and wherein the main arithmetic device communicates at least with the photodetection device among the surveying device and the photodetection device, and collects and records surveying data such as distance measurement data, elevation position data, etc. for each measuring point.

Measuring system

An electronically surveying apparatus of the present invention includes a storing portion for storing positional information of a surveying apparatus body and design data; an angle-measuring portion for electronically measuring an angle between a reference direction and an aimed direction; an arithmetic processing portion for obtaining a model of an expected arrangement at completion of an object which is expected to be seen from the surveying apparatus body in the aimed direction by calculation, based on the angle measured by the angle-measuring portion and the design data; and a displaying portion for displaying the model of the expected arrangement at completion of the object.

Electronic surveying apparatus

A surveying instrument includes a main body and a terminal portion located away from the main body. The main body includes a measuring unit 20 capable of operating in a tracking mode in which a target 11 for searching a set out point S to be set out at a point of land is tracked and a measuring mode in which the position of the target 11 is measured, a first communication unit 15 for transmitting data concerning a target position measured by the measuring unit to the terminal portion, a mode judging unit 47 for judging that the measuring unit is operating in the tracking or measuring mode, and a result informing unit 54 for informing a result obtained by the mode judging unit 47 toward the side of the target. The terminal portion includes a second communication unit 13B for receiving data transmitted from the first communication unit, a memory unit 57 for storing position data concerning the set out point, a calculating unit 55 for calculating a difference between the positions of the set out point and the target on the basis of the data concerning the set out point stored in the memory unit 57 and the data transmitted from the main body, and a display unit 58 for displaying the difference.

Growing community of inventors

Tokyo, Japan

Ritsuo Sakimura