Hitachi Construction Machinery Co., Ltd.

Riso Kagaku Corporation

Hitachi, Ltd.

Hitachi Construction Machinery

Hiroshi Watanabe

Hiroyuki Adachi

Toichi Hirata

Genroku Sugiyama

Hideaki Suzuki

Eiki Izumi

Masakazu Haga

Koichi Shibata

Kazuo Fujishima

Yukio Aoyagi

Kichio Nakajima

Kazuo Honma

Hiroshi Ogura

Hideki Komatsu

Hiroshi Onoue

Osamu Tomikawa

Yasuo Tanaka

Hideo Karasawa

Eiji Egawa

Shigetaka Nakamura

Kiyoshi Ono

Shuichi Miura

Takeshi Ito

Hidefumi Ishimoto

Sadahisa Tomita

Takashi Nakagawa

Seiya Katou

Eiji Yamagata

Koji Mitsuya

Yoshiaki Saito

Atsushi Sato

Kazunori Nakamura

Hideaki Tanaka

Yusuke Kajita

Yoshinori Furuno

Yutaka Watanabe

Kazuhiro Shibamori

Akira Tatsumi

Gen Yasuda

Hideyuki Kinoshita

Masaki Egashira

Seiya Kato

Tsuyoshi Fujita

Yasushi Ochiai

Yoshiaki Takahashi

Yoshikazu Hara

Kenji Oshima

Yoichi Kowatari

Kouichi Shibata

Yasushi Arai

Takanobu Ikari

Atsuo Yoshida

Hideto Ishibashi

Shinji Akino

Tadatoshi Shimamura

Mitsuo Kihara

Toshinori Kimura

Shigehiro Yoshinaga

Kuniaki Yoshida

Junichi Hosono

Yoshinori Ohwada

Koushirou Adachi

Masami Kamibayashi

Kenichi Sagiya

Junichi Narisawa

Hitoshi Kagiwada

Toshiaki Nishida

Yoshinori Eguchi

Tomohiko Yasuoka

Touichi Hirata

Toshiyuki Miyamoto

Kenji Yoshida

Tousaku Hattori

Fujio Matsuda

Yasushi Tokuda

Tsuyoshi Sakyou

Kouichi Madarame

Kenya Shyouji

Tomohiko Yasudi

Keiji Hatori

Yoshiyuki Umeno

Itsuo Kondo

Yuji Nagashima

Shuji Ohira

Sumio Morita

Kazuo Shitina-Kandatsu-C-101 Fujishima

Gen Tsukuba-Ryo 4-1 Yasuda

A site management system is provided with a server that acquires information about a construction machine and a construction machine operator at a construction site through a communication channel, and manages work conditions at the construction site. The server includes an information registration unit that acquires and registers position information, acceleration data, and gyro data of the construction machine and the construction machine operator, and a riding determination unit that determines a proximity state between the construction machine and the construction machine operator from the position information of the construction machine and the construction machine operator, and determines whether or not the construction machine operator is riding the construction machine from the acceleration data and gyro data of the construction machine operator in addition to the proximity state.

Site management system

A construction site management device receives operation information indicating an operation content of a loading machine, and positional information sent from a haulage vehicle; stores a positional history, and stores an operation history. The operation history includes a content of work of the loading machine performed in a work area and information of time when the work has been performed. Haulage history indicates when the haulage vehicle has entered the work area, and loading history indicates the time when the loading machine has performed loading work for the haulage vehicle and a work area in which the loading machine has performed the loading work for the haulage vehicle. The loading history is created on the basis of the haulage history and the operation history; and work result data indicating from which work area to which work area a load has been hauled is output.

Construction site management device and construction site management system

The safe operation assistance deviceincludes: a connecting destination detecting sectionthat detects and manages a connection state between the safe operation assistance deviceand a connecting destination device; a unique information setting sectionthat sets unique information identifying a vehicle type of an own vehicle according to the connecting destination device; a positional information acquisition sectionthat acquires positional information of the own vehicle; an own vehicle information management sectionthat manages the positional information and the unique information of the own vehicle; an inter-vehicle communication sectionthat transmits the own vehicle information to other vehicle and acquires other vehicle information; and a risk determination sectionthat determines presence or absence of a collision risk between the own vehicle and the other vehicle using the own vehicle information and the other vehicle information.

Safe operation assistance device, fleet management terminal, and safe operation assistance system

A safe driving assistance device includes a region setting section that sets a collision risk determination region used for determining presence or absence of a collision risk of a host vehicle, and a determination section that determines a collision risk between the host vehicle and another vehicle using a host vehicle collision risk determination region, another vehicle collision risk determination region, and environment data. The host vehicle collision risk determination region of the host vehicle is set based on travel data of the host vehicle, a vehicle specification of the host vehicle, and the environment data obtained by the host vehicle. The other vehicle collision risk determination region is obtained by a vehicle-to-vehicle communication device. The other vehicle collision risk determination region is the collision risk determination region of the other vehicle as a collision risk determination target with the host vehicle set by the other vehicle.

Safe driving assistance device

Onboard terminal device includes its own vehicle information acquisition section, a vehicle-to-vehicle communication section, and a collision risk determination section. The vehicle information acquisition section acquires the vehicle information including position information of an own vehicle. The vehicle-to-vehicle communication section performs wireless communications with another vehicle to communicate one's vehicle information to another vehicle and to receive the another vehicle's information, which includes position information of the another vehicle, from the another vehicle. The collision risk determination section determines a risk of collision between the one vehicle and the another vehicle by using a predetermined determination algorithm. The collision risk determination section sets priority of the one vehicle and priority of the another vehicle based on details of work, which the one vehicle and the another vehicle are performing, respectively, and changes the determination algorithm based on the priority of the one vehicle and the priority of the another vehicle.

Safe operation assistance system and vehicle collision prevention method

A sheet supply device includes a sheet supply tray, a guide fence for restricting sheets along a sheet width direction, a slider block that is slidable along the sheet width direction and supports the guide fence in an upright state, a slide shaft that is inserted into a through hole formed in the slider block and guides sliding of the slider block, and a guide fence lock mechanism including a restriction member on which a hole is formed and that is attached to the slider block swingably (the slide shaft is inserted into the hole). The guide fence lock mechanism restricts sliding of the slider block by holding the restriction member in a lock state where an inner circumferential edge of the hole is pushed onto an outer circumference of the slide shaft, and allows sliding of the slider block when the restriction member is swung to cancel the lock state.

Sheet supply device

A device diagnostic apparatus () comprising: data judgment means () for, when device information () including operating condition information and internal state information is inputted, comparing the operating condition information of the device information with operating condition information stored in a database () beforehand to judge whether or not both of the operating condition information agree with each other, and then outputting judgment result information; and state diagnosis means () for, when the judgment result information indicates that both of the operating condition information agree with each other, comparing the internal state information in the device information with internal state information stored in the database beforehand, and then outputting the result of the comparison. This makes it possible to reduce the possibility that false judgment result will be output, and to achieve the efficiency of maintenance work.

Apparatus and system for diagnosing devices included in working machine

An operation assist apparatus includes a display device installed in an operator's cab of a construction machine, at which at least operating procedures for the construction machine are displayed with text and illustrations; an image processing device that generates images; and a control device that engages the image processing device to generate an image of an operating procedure corresponding to an operation of the construction machine and engages the display device to display the image generated by the image processing device.

Operation assist apparatus

A hydraulic excavator periodically measures its current location at predetermined time intervals by the GPS device in an inoperative state where its engine key is in the off position and sends the current location data and time data to a management server by a main controller and communicator. The management server receives the periodically sent location data at its communicator and successively stores it in its memory. The current location data and the measurement time data to provide a location confirmation service by a location information provider. Changes in location can be confirmed on a map, the movement of the hydraulic excavator can be tracked, and assistance can be given for confirmation of location and prevention of theft.

Location confirmation method and location display system of construction machine and such construction machine

An excavation support databaseincludes a display tableand a display specifics table, which serve as storage means dedicated for display. The state of a working region per mesh is stored in the display table, and a discriminative display method (display color) is stored in the display specifics tablecorresponding to the state per mesh. Reference is made to the display specifics tableon the basis of the state (height) per mesh, which is stored in the display table, to read the corresponding display color from the display specifics table, thereby displaying the state of the working region in a color-coded manner. Operation support and management realized with this system can easily be employed in different types of working machines in common and can inexpensively be performed with ease.

Work support and management system for working machine

Assessment information needed to calculate a used vehicle assessment value of a hydraulic excavatoris input to a portable telephoneand is then transmitted from the portable telephone. The transmitted assessment information is received at a manufacturer's base stationat a remote location. The used vehicle assessment value of the hydraulic excavatoris calculated based upon the received assessment information, and history information and operation information on the hydraulic excavatorread out from an operation information databaseand a history databasein correspondence to an ID number assigned to the hydraulic excavator which is included in the assessment information.

Construction machine management apparatus and construction machines management system

A maintenance system of a hydraulic excavator () is provided with a maintenance monitoring device (), a maintenance management server () for managing trouble information and operating information for each working machine, a model information server (), and a service personnel mobile terminal () connected to one another through the Internet (). When trouble occurs in the hydraulic excavator, the maintenance system () transmits trouble information to the maintenance management server (), and the maintenance management server () transmits information on occurrence of trouble to the mobile terminal () and displays it on a display unit. This system manages the maintenance manuals and other data for each model in a model information database separate from the maintenance database and correlates the two databases based on the model data.

Work machine maintenance system

A working machine maintenance system having a plurality of working machines. A center server is provided that manages maintenance on the plurality of working machines by engaging in data exchange through bidirectional communication with each of the plurality of working machines via a communication line. The working machines each include an operation data storage device, an operation device operated to enter a maintenance work completion, a data transmission device, a data reception device, and a display device at which the maintenance information is displayed. The center server includes a data reception device that receives the operation data, the maintenance work completion data, and the maintenance data that have been transmitted, an operation database in which the operation data are stored, a maintenance database, a calculation device that calculates maintenance timing. and a data transmission device that transmits data related to the maintenance information.

Working machine, failure diagnosis system for work machine and maintenance system for work machines

Provided is a communication system for working machines, which makes it possible to transmit desired messages from sites, where the working machines are arranged, to their corresponding work administration centers at timings as needed. When a mail switcharranged on a working machineis operated to send information to a server, a terminal user-company identification unitidentifies, on the basis of a terminal information database, a user to which the information so received is to be sent. A user-company-dependent mail selection unitselects customer informationon the user from a customer database. At a transmission mail creation unit, a corresponding new messageis created. The mail is then transmitted from a mail output unit. In this manner, a desired message can be sent from each working machineat a remote location to the corresponding user at a timing as needed.

Communication system for working machines

Growing community of inventors

Ushiku, Japan

Hiroshi Watanabe