Nec Corporation

Kayaba Industry Company, Ltd.

Hitachi Construction Machinery Co., Ltd.

Takashi Okumura

Koichiro Awano

Hiroyuki Konno

Makoto Hokari

Satoshi Inose

Tomohiro Yoshida

Takeo Orui

Kouichi Watanabe

Ayato Iwasaki

Tomohiro Yoneda

The present disclosure provides a work machine management system that can predict the maintenance timing of a work machine with higher accuracy than conventional techniques. A work machine management systemof the present disclosure includes an input/output unitand a processing unit. The input/output unitreceives from work machinespositional information PI and operation information OI on the work machines, and also receives from a geographical information system servergeological information GI on an area where the work machinesare to perform an operation, based on the positional information PI. The processing unitpredicts the maintenance timing of each work machinebased on the operation information OI and the geological information GI. In response to a request from an external portable terminal, the input/output unitoutputs to the portable terminaldata on an alert based on the maintenance timing of the work machinepredicted by the processing unit

Work machine management system and work machine management device

A cylinder unit is provided in a rear side of a boat body to rotate an outboard motor main body as a steering apparatus, and a pump unit is provided to drive the pump unit via a hydraulic pipe by a steering wheel in a driver's seat. A steering torque inputted to the pump unit by the steering wheel is detected by a torque sensor. The pump unit is assisted in the steering operation direction based upon the detected torque by an electric motor, a worm gear, and a worm wheel.

Steering system for small boat

To provide a power steering device for a boat with an outboard motor which helps to realize easy drive with small steering force without taking waterproofness into consideration. A gear device () is provided for driving a link mechanism for turning and steering an outboard motor main body at the rear of the boat body through a cable by a steering wheel (). A steering torque input to the gear device () by the steering wheel () is detected by a torque sensor () to assist-drive the gear devicein the steering direction by an electric motor (), a helical pinion (), and a helical wheel ().

Power steering device for boat with outboard motor

A virtual private line connection method allowing efficient and economical virtual private line service in the public ISDN is disclosed. When a SS (common channel signalling system No. ) message is generated in response to a call originated by a terminal accommodated in a PBX, the SS message is encapsulated in an ISDN message and the ISDN message is sent to the destination PBX on a D channel. When the destination PBX receives the ISDN message, the SS message is read from the received ISDN message to establish the virtual private line between the PBXs.

Virtual private line connection system and method

In a private branch exchanger which is connected to an ISDN network, a virtual private line information table stores information indicating channels corresponding to virtual private lines in units of routes. An identifying unit determines a route in response to an event, refers to the virtual private line information table based on the determined route to determine a specific one of the channels corresponding to the virtual private lines for the determined route. Also, the identifying unit determines whether a connection of a specific virtual private line corresponding to the specific channel to an ISDN network is established. When the specific channel corresponding to a specific virtual private line is usable, the identifying unit issues a communication instruction. A communication unit performs communication using the specific channel corresponding to the specific virtual private line in response to the communication instruction.

Growing community of inventors

Tokyo, Japan

Takashi Okumura