System and method for the monitoring of a measurement and control device
AssigneeRobert Bosch GmbH
InventorsWolfgang Haas, Andreas Frank, Thomas Meier
Life of this patent
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Abstract
Described is a system and a method to monitor measuring and control equipment. The occurrence of a malfunction does not immediately lead to the monitoring system entering a secure state, but rather increases the count of a counter. If the count exceeds a certain value, then the monitoring system enters a secure state.
Claims15
A system to monitor equipment (2) for measuring, controlling, and regulating, the system having a monitoring device, which monitors the method of functioning of the equipment (2), and in so doing, detects malfunctions of the equipment (2) and may control the operating state of the equipment (2), at least one counter (4, 14, 24) being provided and the detection of a malfunction increasing the count of the at least one counter, and a first count of the at least one counter (4, 14, 24) being provided, where a reset and/or a fault reaction may be triggered in response to the first count being reached or exceeded,
- wherein the difference between the count and the first count is reduced by an artificially generated malfunction, which causes an increase in the count and is input into the system.
The system as recited in one of the preceding claims,
- characterized by a first fault counter (4) assigned to the monitoring device (3) and a second fault counter (14) assigned to the equipment (2) to be monitored, the first and second fault counters being able to be periodically checked and/or compared to each other, in order to monitor the system.
A method to monitor equipment for measuring, controlling, and regulating, where the method of functioning of the monitored equipment is checked by a monitoring device, malfunctions that occur are detected, and the operating state of the monitored equipment is controllable, at least one counter (4, 14, 24) being used, whose count is increased in response to malfunctions being detected, and a first count being provided, where a reset and/or a fault reaction is triggered in response to the first count being reached or exceeded,
- wherein the difference between the count and the first count is reduced by an artificially generated malfunction, which causes an increase in the count.
Dependencies are inferred from the claim text.