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US 10,942,046 B2Granted
Sensor system using safety mechanism
AssigneeInfineon Technologies AG
InventorsWolfgang Granig, Dirk Hammerschmidt
Life of this patent
Estimating the term…
Abstract
A sensor device using verification includes a sensor component and a verification component. The sensor component is configured to generate first data and second data. The verification component is configured to analyze the first data and the second data and generate verification data based on the first data and the second data.
Claims19
A sensor device using verification, the device comprising:
- a sensor circuit comprising a first sensor configured to measure a property and generate first data representing a first raw signal, a second sensor configured to measure the property and generate second data representing a second raw signal, and a digital signal processor configured to generate calculation data based on the first data and the second data, the sensor circuit further comprising a first path connected to the digital signal processor and a second path connected to the first sensor and a third path connected to the second sensor;
- and
- a verification circuit implemented in a control unit external to the sensor circuit, the verification circuit connected to the first path, the second path, and the third path, the verification circuit configured to receive the first data from the second path, the second data from the third path and the calculation data from the first path, and wherein the verification circuit is configured to analyze the first data and the second data and generate verification data based on the calculation data, the first data and the second data.
A sensor device comprising:
- a first sensor configured to generate first analog sensor data representing a first raw signal;
- a second sensor configured to generate second analog sensor data representing a second raw signal;
- a first path configured to provide first comparison data based on the first analog sensor data;
- a second path configured to provide second comparison data based on the second analog sensor data, wherein the second comparison data includes redundant data of the first comparison data;
- a third path configured to provide calculation data based on the first comparison data and the second comparison data;
- and
- a control unit configured to receive the calculation data from the third path, the first analog comparison data from the first sensor and the second comparison data from the second sensor, and to generate verification data based on the calculation data, the first comparison data and the second comparison data using a verification technique.
4 more elements
A method of verifying sensor data, the method comprising:
- measuring first data using a first path by a first sensor, the first data represents a first raw signal;
- measuring second data using a second path by a second sensor, wherein the second path is independent of the first path, wherein the second data includes redundant data of the first data and represents a second raw signal and wherein the first data and the second data measure a property;
- generating comparison data from the first data and the second data;
- generating calculation data from the comparison data and providing the calculation data on a third path;
- receiving the calculation data, the comparison data from the first path and the second path via an interface by a control unit;
- and
- analyzing the comparison data and the calculation data by the control unit to generate verification data.
4 more elements
Dependencies are inferred from the claim text.