Kobelco Construction Machinery Co., Ltd.

Hiroshima University

Masaru Ito

Seiji Saiki

Masaaki Murakami

Fumikazu Higuchi

Koji Fujikawa

Yuichi Kurita

Yoichiro Yamazaki

Hitoshi Sasaki

A system capable of improving accuracy of information relating to the degree of instability of a work machine such as an excavator, the information being provided to an operator of the work machine. Instability degree information, which indicates instability degrees Is, Isof a base body (lower traveling bodyand upper turning body) for which instability values have been assessed as continuous variables, is output to a remote image output device(information output device) such that the form of the output varies continuously depending on continuous changes in the instability degrees Is, Is. An operator of a work machinecan highly accurately recognize the closeness of the current instability degree of the base body to a threshold value at which the base body becomes unstable, and consequently a tolerable range in which the work mechanism, etc. are operated while avoiding instability of the base body.

Work machine state monitoring system and work machine state monitoring method

A remote operation device and a remote operation system that can reduce or eliminate deviation of the position of an indicator image of a working unit such as a line image in an image with respect to the position of the working unit in a real space. In some case, because of a cause such as a communication failure, a position posture coordinate value of a working unit corresponding to captured image data in a work environment image deviates from a position posture coordinate value of the working unit estimated according to an operation form of a remote operation mechanism. In this case, a semitransparent indicator image Img(τ) simulating a bucket is superimposed on a work environment image Img(τ) in a position where the bucket is estimated to be originally present and deviating from an image region representing the bucket.

Remote operation device and remote operation system

A construction machine capable of suppressing deterioration in work efficiency includes an angle detecting device that detects a relative angle between a lower travelling body and an upper slewing body, a travel lever that can be manipulated to make the lower travelling body travel, a display, a directional information generating unit that generates information related to a travelling direction of the lower travelling body based on a detected result of the angle detecting device, and a display controller. The display controller causes the display to display an arrow image indicating the travelling direction of the lower travelling body generated by the directional information generating unit when the travel lever is manipulated and does not permit the display to display the arrow image when the travel lever is not manipulated.

Construction machine

A construction machine includes a display control section which controls a display device to display attachment relevant information generated based on attachment positional information generated by an attachment positional information generation section and three-dimensional contour information of a peripheral working area around the construction machine. The attachment relevant information is information concerning an image obtained by superimposing a peripheral image about a three-dimensional contour of the peripheral working area and a projected image about a leading end attachment which is projected to the peripheral image in a projection direction set arbitrarily or a projection direction set in accordance with a predetermined condition.

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Hiroshima, Japan

Masaru Ito