System and method for on-line diagnostics

An on-line diagnostics system comprising industrial equipment and a maintenance apparatus for the maintenance of the industrial equipment, which are connected via the Internet, wherein the maintenance apparatus comprises:

• a communication unit for receiving encrypted equipment information indicating the state of the industrial equipment and a common key;
• a decryption unit for decrypting the encrypted equipment information using the common key;
• and
• an input/output unit for outputting the decrypted equipment information decrypted by the decryption unit.

An on-line diagnostics system comprising industrial equipment and a maintenance apparatus for the maintenance of the industrial equipment, which are connected via the Internet, the industrial equipment comprising:

• an encryption unit for encrypting equipment information indicating the state of the industrial equipment using a specific common key;
• a communication unit for transmitting the encrypted equipment information encrypted by the encryption unit to the maintenance apparatus in response to a request therefrom;
• and
• an input/output unit for outputting the fact that the industrial equipment has transmitted the common key to the maintenance apparatus, and wherein
• the maintenance apparatus comprises a communication unit for receiving the encrypted equipment information and the common key transmitted by the communication unit of the industrial equipment;
• a decryption unit for decrypting the encrypted equipment information using the common key;
• and
• an input/output unit for outputting the equipment information decrypted by the decryption unit.

An on-line diagnostics system comprising one or more pieces of industrial equipment for performing specific processes and a maintenance apparatus for the maintenance of the industrial equipment, which are connected via the Internet, wherein

• the industrial equipment comprises an encryption unit for encrypting equipment information indicating the state of the industrial equipment using a specific common key, a communication unit for transmitting the encrypted equipment information encrypted by the encryption unit to the maintenance apparatus in response to a request therefrom, and for transmitting the common key used in encrypting the encrypted equipment information to the maintenance apparatus that received the encrypted equipment information, in response to a request therefrom, and an input/output unit for outputting all or part of the history of transmission of the common key from the industrial equipment to the maintenance apparatus, and wherein
• the maintenance apparatus comprises a communication unit for receiving the encrypted equipment information transmitted by the communication unit of the industrial equipment, and for receiving the common key used in encrypting the encrypted equipment information from the industrial equipment after requesting it therefrom, a decryption unit for storing the common key received by the communication unit of the maintenance apparatus and for decrypting the encrypted equipment information using the stored common key, and an input/output unit for storing the decrypted equipment information decrypted by the decryption unit and for outputting all or part of the stored equipment information.

An on-line diagnostics system comprising one or more pieces of industrial equipment for performing specific processes, a managing apparatus for managing information transmitted from the industrial equipment, and a maintenance apparatus for the maintenance of the industrial equipment, which are connected via the Internet, wherein

• the industrial equipment comprises a communication unit for transmitting equipment information indicating the state of the industrial equipment to the managing apparatus,
• the managing apparatus comprises an encryption unit for encrypting the equipment information transmitted by the industrial equipment using a specific common key, a communication unit for transmitting the encrypted equipment information encrypted by the encryption unit to the maintenance apparatus in response to a request therefrom, and for transmitting the common key used in encrypting the encrypted equipment information to the maintenance apparatus that received the encrypted equipment information, in response to a request therefrom, and an input/output unit for outputting all or part of the history of transmission of the common key from the managing apparatus to the maintenance apparatus, and
• the maintenance apparatus comprises a communication unit for receiving the encrypted equipment information transmitted by the communication unit of the managing apparatus, and for receiving the common key used in encrypting the encrypted equipment information from the managing apparatus after requesting it therefrom, a decryption unit for storing the common key received by the communication unit of the maintenance apparatus and for decrypting the encrypted equipment information using the stored common key, and an input/output unit for storing the equipment information decrypted by the decryption unit and for outputting all or part of the stored equipment information.

An on-line diagnostics system comprising one or more pieces of industrial equipment for performing specific processes, and one or more maintenance apparatus for the maintenance of the industrial equipment, which are connected via the Internet, wherein

• the industrial equipment comprises an encryption unit for encrypting equipment information indicating the state of the industrial equipment using a specific common key, a determination unit for determining the maintenance apparatus to which the encrypted equipment information encrypted by the encryption unit is to be transmitted, a communication unit for transmitting the encrypted equipment information encrypted by the encryption unit to the maintenance apparatus determined by the determination unit, and for transmitting the common key used in encrypting the encrypted equipment information to the maintenance apparatus that received the encrypted equipment information in response to a request therefrom, and an input/output unit for outputting all or part of the history of transmission of the common key from the industrial equipment to the maintenance apparatus, and wherein
• the maintenance apparatus comprises a communication unit for receiving the encrypted equipment information transmitted by the communication unit of the industrial equipment, and for receiving the common key used in encrypting the encrypted equipment information from the industrial equipment after requesting it therefrom, a decryption unit for storing the common key received by the communication unit of the maintenance apparatus and for decrypting the encrypted equipment information using the stored common key, and an input/output unit for storing the equipment information decrypted by the decryption unit and for outputting all or part of the stored equipment information.

An on-line diagnostics system comprising one or more pieces of industrial equipment for performing specific processes, a managing apparatus for managing information transmitted from the industrial equipment, and one or more maintenance apparatus for the maintenance of the industrial equipment, which are connected via the Internet, wherein

• the industrial equipment comprises a communication unit for transmitting equipment information indicating the state of the industrial equipment to the managing apparatus,
• the managing apparatus comprises an encryption unit for encrypting the equipment information transmitted by the communication unit of the industrial equipment using a specific common key, a determination unit for determining the maintenance apparatus to which the encrypted equipment information encrypted by the encryption unit is to be transmitted, a communication unit for transmitting the encrypted equipment information encrypted by the encryption unit to the maintenance apparatus determined by the determination unit, and for transmitting the common key used in encrypting the encrypted equipment information to the maintenance apparatus that received the encrypted equipment information in response to a request therefrom, an input/output unit for outputting all or part of the history of transmission of the common key from the managing apparatus to the maintenance apparatus, and
• the maintenance apparatus comprises a communication unit for receiving the encrypted equipment information transmitted by the communication unit of the managing apparatus, and for receiving the common key used in encrypting the encrypted equipment information from the managing apparatus after requesting it therefrom, a decryption unit for storing the common key received by the communication unit of the maintenance apparatus and for decrypting the encrypted equipment information using the stored common key, and an input/output unit for storing the equipment information decrypted by the decryption unit and for outputting all or part of the stored equipment information.

An on-line diagnostics method for industrial equipment to which a maintenance apparatus for the maintenance thereof is connected via the Internet, the method comprising the steps of:

• encrypting equipment information indicating the state of the industrial equipment using a specific common key;
• transmitting the encrypted equipment information to the maintenance apparatus in response to a request therefrom;
• and
• outputting the fact that the common key has been transmitted from the industrial equipment to the maintenance apparatus.

An on-line diagnostics method for industrial equipment to which a maintenance apparatus for the maintenance thereof is connected via the Internet, the method comprising the steps of:

• receiving encrypted equipment information indicating the state of the industrial equipment and a common key;
• decrypting the encrypted equipment information using the common key;
• and
• outputting the decrypted equipment information.

An on-line diagnostics method for industrial equipment to which a maintenance apparatus for the maintenance thereof is connected via the Internet, the method comprising the steps of:

• encrypting equipment information indicating the state of the industrial equipment using a specific common key;
• transmitting the encrypted equipment information to the maintenance apparatus in response to a request therefrom;
• outputting the fact that the common key has been transmitted from the industrial equipment to the maintenance apparatus;
• receiving the encrypted equipment information and the common key that have been transmitted;
• decrypting the encrypted equipment information using the common key;
• and
• outputting the decrypted equipment information.