Cross-monitoring sensor system and method
First Claim
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1. A cross-monitoring sensor system, comprising:
- a plurality of sensors each having a sensing element, circuitry for processing signals from the sensing element, an output interface for delivering processed signals, and an auxiliary input to which signals from another device can be input for processing and delivery by the output interface, means for applying signals from each of the sensors to the auxiliary input of another one of the sensors, and means for comparing signals from the output interfaces of the sensors.
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Abstract
Cross-monitoring sensor system and method in which a plurality of sensors each having a sensing element, circuitry for processing signals from the sensing element, an output interface for delivering processed signals, and an auxiliary input to which signals from another device can be input for processing and delivery by the output interface. Signals from each of the sensors are applied to the auxiliary input of another one of the sensors, and signals from the output interfaces of the sensors are compared to verify integrity of the system.
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Citations
21 Claims
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1. A cross-monitoring sensor system, comprising:
- a plurality of sensors each having a sensing element, circuitry for processing signals from the sensing element, an output interface for delivering processed signals, and an auxiliary input to which signals from another device can be input for processing and delivery by the output interface, means for applying signals from each of the sensors to the auxiliary input of another one of the sensors, and means for comparing signals from the output interfaces of the sensors.
- View Dependent Claims (2, 3, 4)
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5. A method of monitoring the operation of a plurality of sensors each having a sensing element, circuitry for processing signals from the sensing element, an output interface for delivering processed signals, and an auxiliary input to which signals from another device can be input for processing and delivery by the output interface, comprising the steps of:
- applying signals from each of the sensors to the auxiliary input of another one of the sensors, and comparing signals from the output interfaces of the sensors.
- View Dependent Claims (6, 7, 8)
- 9. A cross-monitoring sensor system, comprising a first sensor having a sensing element, circuitry for processing signals from the sensing element, an output interface for delivering processed signals, and an auxiliary input to which signals from a second sensor can be input for processing and delivery by the output interface.
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13. A cross-monitoring sensor system, comprising:
- a plurality of sensors each having a sensing element, an analog-to-digital converter, an analog output for delivering analog output signals, a digital output interface for delivering digital signals, and an auxiliary analog input to which signals from another device can be input for digitizing and delivery by the output interface, means for applying signals from the analog output of each of the sensors to the auxiliary input of another one of the sensors, and means for comparing signals from the digital output interfaces of the sensors.
- View Dependent Claims (14, 15)
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16. A cross-monitoring sensor system, comprising:
- first and second sensors each having a sensing element, an analog-to-digital converter, an analog output for delivering analog output signals, a digital output interface for delivering digital signals, and an auxiliary analog input to which signals from another device can be input for digitizing and delivery by the output interface, means for applying signals from the analog output of the first sensor to the auxiliary input of the second and from the analog output of the second sensor to the auxiliary input of the first, and means for comparing signals from the digital output interfaces of the sensors.
- View Dependent Claims (17, 18)
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19. A cross-monitoring sensor system, comprising:
- a series of sensors each having a sensing element, an analog-to-digital converter, an analog output for delivering analog output signals, a digital output interface for delivering digital signals, and an auxiliary analog input to which signals from another device can be input for digitizing and delivery by the output interface, means for applying signals from the analog output of each sensor to the auxiliary input of the next sensor in the series and from the analog output of the last sensor in the series to the auxiliary input of the first, and means for comparing signals from the digital output interfaces of the sensors.
- View Dependent Claims (20, 21)
Specification