Information processing device and information processing method
First Claim
1. An information processing device connected to a plurality of networks including a control network connected to a control device in a mobile object, an information network connected to an information device in the mobile object, and an external network connected to an external device outside of the mobile object, the information processing device comprising:
- firewalls each connected to one of the networks, anda processor connected to each of the networks via the corresponding firewall, whereinthe information processing device is configured to isolate at least the control network from the other networks,each of the firewalls is configured to permit communication only between the processor and the respective one of the networks to which the respective firewall is connected,the processor includes;
a proxy server that is configured to;
receive, from a network other than the control network, a request signal that requests control information about the control device,change a transmission destination of the received request signal to the data server, according to the contents of the received request signal, andtransmit the received request signal to the data server, according to the contents of the received request signal; and
a data server that is configured to;
acquire from the control network or a storage that stores control information from the control network, the control information requested in the received request signal,generate a response signal responsive to the request signal, the response signal responsive to the request signal containing the acquired control information, andtransmit the generated response signal responsive to the request signal to the network that is the transmission source of the request signal.
1 Assignment
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Accused Products
Abstract
An information processing device is connected to a plurality of networks and performs information processing. The networks include a control network connected to a control device in a mobile object, an information network connected to an information device in the mobile object, and an external network connected to an external device outside of the mobile object. The information processing device includes firewalls each connected to one of the networks, and a processor connected to each network via the corresponding firewall. The information processing device isolates at least the control network from the other networks.
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Citations
11 Claims
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1. An information processing device connected to a plurality of networks including a control network connected to a control device in a mobile object, an information network connected to an information device in the mobile object, and an external network connected to an external device outside of the mobile object, the information processing device comprising:
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firewalls each connected to one of the networks, and a processor connected to each of the networks via the corresponding firewall, wherein the information processing device is configured to isolate at least the control network from the other networks, each of the firewalls is configured to permit communication only between the processor and the respective one of the networks to which the respective firewall is connected, the processor includes; a proxy server that is configured to; receive, from a network other than the control network, a request signal that requests control information about the control device, change a transmission destination of the received request signal to the data server, according to the contents of the received request signal, and transmit the received request signal to the data server, according to the contents of the received request signal; and a data server that is configured to; acquire from the control network or a storage that stores control information from the control network, the control information requested in the received request signal, generate a response signal responsive to the request signal, the response signal responsive to the request signal containing the acquired control information, and transmit the generated response signal responsive to the request signal to the network that is the transmission source of the request signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An information processing method implemented in an information processing device, the information processing device being connected to a plurality of networks including a control network connected to a control device in a mobile object, an information network connected to an information device in the mobile object, and an external network connected to an external device outside of the mobile object, the information processing device including firewalls each connected to one of the networks, a processor connected to each of the networks via the corresponding firewall, the information processing device being configured to isolate at least the control network from the other networks, and each of the firewalls is configured to permit communication only between the processor and the respective one of the networks to which the respective firewall is connected, the method comprising:
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receiving, by a proxy server of the processor from a network other than the control network, a request signal that requests control information about the control device, changing, by the proxy server, a transmission destination of the received request signal to a data server of the processor, according to the contents of the received request signal; transmitting, by the proxy server, the received request signal to the data server, according to the contents of the received request signal; acquiring, by the data server, from the control network or a storage that stores control information from the control network, the control information requested in the received request signal; generating, by the data server, a response signal responsive to the request signal, the response signal responsive to the request signal containing the acquired control information; and transmitting, by the data server, the generated response signal responsive to the request signal to the network that is the transmission source of the request signal.
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11. An information processing method implemented in an information processing device, the information processing device being connected to a plurality of networks including a control network connected to a control device in a mobile object, and another network connected to another device other than the control device, the information processing device including firewalls each connected to one of the networks, a processor connected to each of the networks via the corresponding firewall, the information processing device being configured to permit passage of communication messages between the processor and the control network and prevent flow of communication messages from the other network into the control network, each of the firewalls being configured to permit communication only between the processor and the respective one of the networks to which the respective firewall is connected, the method comprising:
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receiving, by a proxy server of the processor from a network other than the control network, a request signal that requests control information about the control device, changing, by the proxy server, a transmission destination of the received request signal to a data server of the processor, according to the contents of the received request signal; transmitting, by the proxy server, the received request signal to the data server, according to the contents of the received request signal; acquiring, by the data server, from the control network or a storage that stores control information from the control network, the control information requested in the received request signal; generating, by the data server, a response signal responsive to the request signal, the response signal responsive to the request signal containing the acquired control information; and transmitting, by the data server, the generated response signal responsive to the request signal to the network that is the transmission source of the request signal.
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Specification