Hitachi, Ltd.

Takeiki Aizono

Takashi Iizumi

Juntaro Arima

Masaaki Inaba

Hiroyuki Tanaka

Makoto Kogure

Dai Fujii

Masahiro Ohashi

Katsumi Kawano

Hiromitsu Kato

Akitoshi Shimura

Makoto Shioya

Kinji Mori

Koichi Sano

Masayuki Orimo

Shigeki Hirasawa

Eriko Ando

Hisashi Hashimoto

Atsushi Kobayashi

Koki Nakashiro

Nobuyoshi Andou

Teruji Sekozawa

Hiroshi Wataya

Toshiyuki Sakamoto

Nobuyoshi Ando

Masanori Kataoka

An on-vehicle gateway device connected to an information system network and a control system network of a vehicle executes monitoring the status of an information system via an information system access circuit taking charge of message transmission and reception to and from the information system network, and an information system management step to manage information acquired by the information system monitoring, monitoring the status of a control system via a control system access circuit taking charge of message transmission and reception to and from the control system network, and a control system management step to manage information acquired by the control system monitoring, managing policies for access control by the access control circuit controlling data flows between the information system access circuit and the control system access circuit, and determining whether or not to update the policies managed by policy management and to update the policies.

On-vehicle gateway device, method for controlling an on-vehicle gateway device, connection device and connection control method

In a navigation system integrated with a diagnostic device, an arithmetic and control unit for diagnostic communication makes an inquiry to electronic control units, such as an engine control unit, a transmission control unit and a brake control unit connected a CAN, about data which is used for the diagnosis of trouble causes based on setting information stored in a memory through diagnostic communication. An arithmetic and control unit for navigation system receives messages responding to the inquiry to sift through the data to be collected based on the setting information in the memory and stores the collected information in a hard disk drive device. The setting information is updated by making an inquiry to an external center via a mobile communication network.

System mounted on a vehicle, vehicle, diagnosis information collecting device and navigation device

The present invention provides a remote maintenance method, a remote maintenance system, and an industrial device for enabling control and thorough services and billing according to the contents of the remote maintenance operation and the request destination of maintenance and enabling access limit according to the attribute of a service person, access limit according to the device state, and output limit according to the output mode. The industrial deviceinstalled at the factoryand the operation deviceinstalled in the maintenance centerare connected via the network. The operation devicetransmits command information indicating a command concerning maintenance to the industrial deviceand the industrial deviceexecutes a process according to the received command information, generates charge information indicating a charge concerning maintenance according to the contents of the executed process, and outputs the whole or a part of the generated charge information to the output device of the industrial device

Industrial device receiving remote maintenance operation and outputting charge information

Remote maintenance method for generating maintenance charge information, industrial device, and semiconductor device

Remote maintenance method, industrial device, and semiconductor device

A transport system composed of road side stations installed along roads and vehicles running on roads, wherein emergency processing at the time of an accident, a local information providing service, and so on are realized by the road side stations in cooperation of the road side stations and the respective vehicles. In the transport system, a plurality of road side stations are interconnected through a road side communication network, and a plurality of vehicles communicate with the road side stations. A vehicle transmits a request message containing a service code and location information. A road side station receiving the request message broadcasts the request message to the network. The road side stations receive the message, and determine whether or not requested processing should be executed based on the service code and the location information. When determining that the processing should be executed, the road side station executes processing indicated by the service code.

Transport system

In a distributed control system in which a plurality of nodes are connected to a transmission line, each node controlling components connected to this node and transmitting a message to other nodes, a message sent by each node includes at least two message-sending condition-identifying portions, one of the condition-identifying portions including data indicating a message-receiving node or non-designation of a message-receiving node; and a comparison-selection circuit provided in each node includes registration parts for registering data of message-receiving conditions, at least two registration parts for comparing contents of the condition-identifying portion in the taken-in message with the data of message-receiving conditions registered in the registration parts, a received-message storing part for storing a message to be received in this node, a control part for determining whether or not the taken-in message is to be received in this node based on a result of comparison-processing performed in the comparison and selection means and for transferring the taken-in message to the received-message storing part if it is determined that the taken-in message is received in this node, otherwise, abandoning the taken-in message.

Distributed control system and filtering method used in the distributed control system

Remote maintenance method for industrial device that generates maintenance charge information using received charge list

In a distributed processing system including a plurality of programs distributed in a plurality of processing units and in which a program on reception side performs processing using a message transmitted from a program on transmission side, a management table for managing start of programs on reception side is provided in a processing unit in which the program on reception side is provided. A program utilizing the message transmitted from the transmission side is recognized and the recognized program is started at the start timing indicated in the management table. The start timing of the program set in the management table may be registered previously or the message may include information indicating the start timing.

Execution management method of program on reception side of message in distributed processing system

The present invention provides a remote maintenance method, a remote maintenance system, and an industrial device for enabling control and thorough services and billing according to the contents of the remote maintenance operation and the request destination of maintenance and enabling access limit according to the attribute of a service person, access limit according to the device state, and output limit according to the output mode. The industrial device installed at the factory and the operation device installed in the maintenance center are connected via the network . The operation device transmits command information indicating a command concerning maintenance to the industrial device and the industrial device executes a process according to the received command information, generates charge information indicating a charge concerning maintenance according to the contents of the executed process, and outputs the whole or a part of the generated charge information to the output device of the industrial device

The present invention provides a remote maintenance method, a remote maintenance system, and an industrial device for enabling control and thorough services and billing according to the contents of the remote maintenance operation and the request destination of maintenance and enabling access limit according to the attribute of a service person, access limit according to the device state, and output limit according to the output mode. The industrial device installed at the factory and the operation device installed in the maintenance center are connected via the network The operation device transmits command information indicating a command concerning maintenance to the industrial device and the industrial device executes a process according to the received command information, generates charge information indicating a charge concerning maintenance according to the contents of the executed process, and outputs the whole or a part of the generated charge information to the output device of the industrial device

Growing community of inventors

Kawasaki, Japan

Takeiki Aizono