Hitachi, Ltd.

Hitachi-high-technologies Corporation

Masaaki Inaba

Takashi Iizumi

Juntaro Arima

Takeiki Aizono

An on-line diagnostic system and method enable equipment information stored in each piece of industrial equipment to be safely disclosed to maintenance personnel to the extent permitted by the user of the industrial equipment. The on-line diagnostics systems comprises industrial equipment and a maintenance apparatus for the maintenance of the industrial equipment, which are connected via the Internet. Equipment information indicating the state of the industrial equipment is encrypted using a specific common key, and the encrypted equipment information is transmitted to the maintenance apparatus in response to a request therefrom. The fact that the common key has been transmitted from the industrial equipment to the maintenance apparatus is outputted. After receiving the encrypted equipment information and the common key that have been transmitted, the encrypted equipment formation is decrypted using the common key, and the decrypted equipment information is outputted.

System and method for on-line diagnostics

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

An on-line diagnostics system and method enable equipment information stored in each piece of industrial equipment to be safely disclosed to maintenance personnel to the extent permitted by the user of the industrial equipment. The on-line diagnostics system comprises industrial equipment and a maintenance apparatus for the maintenance of the industrial equipment, which are connected via the Internet. Equipment information indicating the state of the industrial equipment is encrypted using a specific common key, and the encrypted equipment information is transmitted to the maintenance apparatus in response to a request therefrom. The fact that the common key has been transmitted from the industrial equipment to the maintenance apparatus is outputted. After receiving the encrypted equipment information and the common key that have been transmitted, the encrypted equipment information is decrypted using the common key, and the decrypted equipment information is outputted.

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

Remote maintenance method, industrial device, and semiconductor device

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

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

Yokohama, Japan

Masaaki Inaba