On-vehicle gateway device, method for controlling an on-vehicle gateway device, connection device and connection control method
First Claim
1. An on-vehicle gateway device to be connected to an information system network and a control system network of a vehicle, comprising:
- an information system access circuit taking charge of message transmission and reception to and from the information system network,a control system access circuit taking charge of message transmission and reception to and from the control system network,an access control circuit controlling data flows between the information system access circuit and the control system access circuit,a policy management circuit managing policies for access control by the access control circuit,an information system monitoring circuit monitoring the status of an information system via the information system access circuit,an information system configuration management circuit managing information acquired by the information system monitoring circuit,a control system monitoring circuit monitoring the status of the control system via the control system access circuit,a control system configuration management circuit managing information acquired by the control system monitoring circuit, anda policy update circuit determining whether or not to update the policies managed by the policy management circuit and updating the policies.
3 Assignments
0 Petitions
Accused Products
Abstract
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.
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Citations
23 Claims
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1. An on-vehicle gateway device to be connected to an information system network and a control system network of a vehicle, comprising:
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an information system access circuit taking charge of message transmission and reception to and from the information system network, a control system access circuit taking charge of message transmission and reception to and from the control system network, an access control circuit controlling data flows between the information system access circuit and the control system access circuit, a policy management circuit managing policies for access control by the access control circuit, an information system monitoring circuit monitoring the status of an information system via the information system access circuit, an information system configuration management circuit managing information acquired by the information system monitoring circuit, a control system monitoring circuit monitoring the status of the control system via the control system access circuit, a control system configuration management circuit managing information acquired by the control system monitoring circuit, and a policy update circuit determining whether or not to update the policies managed by the policy management circuit and updating the policies. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A program in a non-transitory medium to be executed by a computer mounted on an on-vehicle gateway device connected to an information system network and a control system network of a vehicle, comprising:
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an information system access module taking charge of message transmission and reception to and from the information system network, a control system access module taking charge of message transmission and reception to and from the control system network, an access control module controlling data flows between the information system access module and the control system access module, a policy management module managing policies for access control by the access control module, an information system monitoring module monitoring the status of an information system via the information system access module, an information system configuration management module managing information acquired by the information system monitoring module, a control system monitoring module monitoring the status of the control system via the control system access module, a control system configuration management module managing information acquired by the control system monitoring module, and a policy update module determining whether or not to update the policies managed by the policy management module and updating the policies.
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14. A control method in an on-vehicle gateway device connected to an information system network and a control system network of a vehicle, comprising:
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an information system monitoring step to monitor 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; a control system monitoring step to monitor 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; a policy management step to manage policies for access control by an access control circuit controlling data flows between the information system access circuit and the control system access circuit, and a policy update step to determine whether or not to update the policies managed by policy management and to update the policies. - View Dependent Claims (15, 16)
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17. A connection device for connecting, to a network of a control system, an external device of the network, comprising:
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a memory circuit for storing data that is transmitted from the external device to the control system; and a control circuit, wherein; the control circuit performs processing to determine whether or not the control system is stable, and, if the control system is stable, performs processing to transmit the data stored in the memory circuit to the control system; and the control circuit judges whether or not the control system is stable in a predetermined period and, if the quantity of data flowing over the network in one current period exceeds a prescribed threshold, the control circuit determines that the control system will be stable in a period immediately following the current one period.
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18. A connection device for connecting, to a network of a control system, an external device of the network, comprising:
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a memory circuit for storing data that is transmitted from the external device to the control system; and a control circuit, wherein; the control circuit performs processing to determine whether or not the control system is stable, and, if the control system is stable, performs processing to transmit the data stored in the memory circuit to the control system; the memory circuit stores the data that is transmitted from the external device to the control system and the number of the transmissions of the data; and the control circuit determines whether or not the control system is stable in a predetermined period and subtracts one from the number of the transmissions every time the control circuit performs transmission processing of the result of the determination. - View Dependent Claims (19)
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20. A connection device for connecting, to a network of a control system, an external device of the network, comprising:
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a memory circuit for storing the data that is transmitted from the external device to the control system; and a control circuit, wherein; the control circuit performs processing to determine whether or not the control system is stable, and, if the control system is stable, performs processing to transmit the data stored in the memory circuit to the control system; the memory circuit stores the data transmitted from the external device to the control system and information that specifies a validity duration of the data; and the control circuit determines whether or not the control system is stable in a predetermined period and subtracts the length of the predetermined period from the validity duration. - View Dependent Claims (21)
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22. A connection device for connecting, to a network of a control system, an external device of the network, comprising:
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a memory circuit for storing data that is transmitted from the external device to the control system; and a control circuit, wherein; the control circuit performs processing to determine whether or not the control system is stable, and, if the control system is stable, performs processing to transmit the data stored in the memory circuit to the control system; the memory circuit stores the data that is transmitted from the external device to the control system and information that specifies a priority level of the data; and the control circuit, if it determines that the control system is stable, transmits the data stored in the memory circuit in descending order of the priority level to the control system. - View Dependent Claims (23)
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Specification