Method and device for monitoring the functioning of a system
First Claim
1. A method of monitoring a functioning of a system, the system at least one of including at least one lower-level subsystem and being a component of a higher-level system, the system including components implemented as hardware, including at least one of at least one sensor, at least one actuator, and at least one function computer, the method comprising:
- checking at least one input signal, at least one output signal and at least one function unit of the system; and
subdividing hierarchically an intended function of the system as a function of the complexity of the intended function, the intended function being subdivided into at least one subsystem function that is subdivided into at least one function unit;
wherein;
in a first monitoring layer, the at least one function unit of the system is checked by taking into account at least one of at least one input signal and at least one output signal of the function unit;
in a second monitoring layer, at a higher level than the first monitoring layer, the at least one function unit is checked by taking into account at least one of at least one input signal and at least one output signal of at least one subsystem assigned to the at least one function unit; and
in at least one additional monitoring layer, at a higher level than the second monitoring layer, the at least one function unit is checked by taking into account at least one of the at least one input signal and the at least one output signal of the system.
1 Assignment
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Accused Products
Abstract
A method and a device for monitoring the functioning of a system by checking input signals, output signals and at least one function unit of the system. The system includes at least one lower-level subsystem and/or is a component of a higher-level system. The system includes components implemented in the form of hardware, including sensors, actuators and/or function computers. To permit easier unambiguous allocation of any faults occurring in the system to the various function units of the system, an intended function of the system is subdivided hierarchically as a function of the complexity of the function into at least one subsystem function which is in turn subdivided into at least one function unit, and the method is structured hierarchically into multiple monitoring layers.
17 Citations
12 Claims
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1. A method of monitoring a functioning of a system, the system at least one of including at least one lower-level subsystem and being a component of a higher-level system, the system including components implemented as hardware, including at least one of at least one sensor, at least one actuator, and at least one function computer, the method comprising:
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checking at least one input signal, at least one output signal and at least one function unit of the system; and
subdividing hierarchically an intended function of the system as a function of the complexity of the intended function, the intended function being subdivided into at least one subsystem function that is subdivided into at least one function unit;
wherein;
in a first monitoring layer, the at least one function unit of the system is checked by taking into account at least one of at least one input signal and at least one output signal of the function unit;
in a second monitoring layer, at a higher level than the first monitoring layer, the at least one function unit is checked by taking into account at least one of at least one input signal and at least one output signal of at least one subsystem assigned to the at least one function unit; and
in at least one additional monitoring layer, at a higher level than the second monitoring layer, the at least one function unit is checked by taking into account at least one of the at least one input signal and the at least one output signal of the system. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A computer program executable by a computer, the computer program including program code for performing a method for monitoring a system, the system at least one of including at least one lower-level subsystem and being a component of a higher-level system, the system including components implemented as hardware, including at least one of at least one sensor, at least one actuator, and at least one function computer, the computer program being operable to perform the method, the method including:
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checking at least one input signal, at least one output signal and at least one function unit of the system; and
subdividing hierarchically an intended function of the system as a function of the complexity of the intended function, the intended function being subdivided into at least one subsystem function that is subdivided into at least one function unit;
wherein;
in a first monitoring layer the at least one function unit of the system is checked by taking into account at least one of at least one input signal and at least one output signal of the function unit;
in a second monitoring layer, at a higher level than the first monitoring layer, the at least one function unit is checked by taking into account at least one of at least one input signal and at least one output signal of at least one subsystem assigned to the at least one function unit; and
in at least one additional monitoring layer, at a higher level than the second monitoring layer, the at least one function unit is checked by taking into account at least one of the at least one input signal and the at least one output signal of the system. - View Dependent Claims (9, 10, 11)
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12. A device for monitoring a system, the system one of including at least one lower-level subsystem and being a component of a higher-level system, the system including components implemented as hardware, including at least one of at least one sensor, at least one actuator and at least one function computer, the device comprising:
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a checking arrangement to check at least one input signal, at least one output signal and at least one function unit of the system;
a first monitoring layer arrangement to check the at least one function unit of the system by taking into account at least one of at least one input signal and at least one output signal of the function unit;
a second monitoring layer arrangement, at a higher level than the first monitoring layer, to check the at least one function unit by taking into account at least one of at least one input signal and at least one output signal of at least one subsystem assigned to the at least one function unit; and
at least one additional monitoring layer arrangement, at a higher level than the second monitoring layer, to check the at least one function unit by taking into account at least one of the at least one input signal and the at least one output signal of the system; and
a subdividing arrangement to subdivide hierarchically an intended function of the system as a function of the complexity of the intended function, the intended function being subdivided into at least one subsystem function that is subdivided into at least one function unit.
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Specification