Control system having abnormality monitor function
First Claim
1. A control system comprising:
- a signal processing unit;
a computation processing unit; and
a monitor processing unit, wherein the signal processing unit, the computation processing unit, and the monitor processing unit mutually communicate data, wherein the signal processing unit sends, to the computation processing unit and the monitor processing unit, signal data that indicates at least one of a state of a switch and a detection result of a sensor, wherein the computation processing unit executes a computation using at least one of the signal data sent by the signal processing unit, signal data sent by other than the signal processing unit, and internal data, and then sends operation command data to an output processing unit and operation condition data to the monitor processing unit, and wherein the operation command data controls the output processing unit for activating at least one of an actuator and a load, wherein the operation condition data indicates that condition where an operation command trigger that activates an operation command target is effected, wherein the monitor processing unit receives the signal data sent by the signal processing unit and stores the received signal data, and wherein the monitor processing unit determines whether abnormality is present, by comparing the stored signal data with the operation condition data received from the computation processing unit.
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Accused Products
Abstract
A signal unit sends signal data to a computation unit and a monitor unit. The computation unit computes using the signal data sent by the signal unit, signal data sent by other than the signal unit, or internal control data to send operation data to an output unit and the monitor unit. The monitor unit then determines whether abnormality is present, by comparing the received signal data and the received operation data. For instance, there is a case where the operation data indicates that a switch of a door lock is in an ON state although the signal data indicates that the switch of the door lock is in an OFF state. In the case, it is assumed that abnormality between the signal unit and the computation unit or abnormality within the computation unit may be present.
19 Citations
6 Claims
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1. A control system comprising:
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a signal processing unit;
a computation processing unit; and
a monitor processing unit, wherein the signal processing unit, the computation processing unit, and the monitor processing unit mutually communicate data, wherein the signal processing unit sends, to the computation processing unit and the monitor processing unit, signal data that indicates at least one of a state of a switch and a detection result of a sensor, wherein the computation processing unit executes a computation using at least one of the signal data sent by the signal processing unit, signal data sent by other than the signal processing unit, and internal data, and then sends operation command data to an output processing unit and operation condition data to the monitor processing unit, and wherein the operation command data controls the output processing unit for activating at least one of an actuator and a load, wherein the operation condition data indicates that condition where an operation command trigger that activates an operation command target is effected, wherein the monitor processing unit receives the signal data sent by the signal processing unit and stores the received signal data, and wherein the monitor processing unit determines whether abnormality is present, by comparing the stored signal data with the operation condition data received from the computation processing unit. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification