Method and device for monitoring control units
First Claim
1. A method of monitoring at least one of data and transmission of data between a first control unit and a second control unit, the two control units having a first program level, to which are allocated programs which calculate a control function, as well as a second program level including programs that monitor functional reliability of the programs of the first program level, the first control unit being connected to at least one component which is used to acquire data, comprising the steps of:
- transmitting at least one of the data acquired by the component and data derived from the data acquired by the component, from the first control unit to the second control unit over a single connection in a secure manner; and
separating, in a secure manner, the at least one of the data and the data transmission in the first and second program levels such that errors in the at least one of the data and the data transmission are detected.
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Accused Products
Abstract
A method and a device for monitoring data and the transmission of data between at least one first control unit and one second control unit are provided. The at least two control units have a first program level, to which are allocated programs which calculate the control function, as well as a second program level including programs that monitor the functional reliability of the programs of the first program level. The first control unit is connected to at least one component which may be used to acquire data, for example, controlled variables. The data acquired by the component or further data determined with this data may be transmitted from the first control unit to the second control unit over a single connection in a secure manner, and the data and the data transmission are secured separately in the first and second program levels such that errors in the data and the data transmission may be detected.
24 Citations
7 Claims
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1. A method of monitoring at least one of data and transmission of data between a first control unit and a second control unit, the two control units having a first program level, to which are allocated programs which calculate a control function, as well as a second program level including programs that monitor functional reliability of the programs of the first program level, the first control unit being connected to at least one component which is used to acquire data, comprising the steps of:
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transmitting at least one of the data acquired by the component and data derived from the data acquired by the component, from the first control unit to the second control unit over a single connection in a secure manner; and
separating, in a secure manner, the at least one of the data and the data transmission in the first and second program levels such that errors in the at least one of the data and the data transmission are detected. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A device for monitoring at least one of data and transmission of data, comprising:
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first and second control units, the control units including a first program level, to which are allocated programs which calculate a control function, as well as a second program level including programs that monitor functional reliability of the programs of the first program level;
a component for acquiring data, which component is connected to the first control unit, wherein at least one of the data acquired by the component and data derived from the data acquired by the component are transmitted from the first control unit to the second control unit over a single connection in a secure manner; and
an arrangement which implements separate security for the at least one of the data and the data transmission in the first and second program levels such that errors in the at least one of the data and the data transmission are detected.
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Specification