Interface device and method of use with a smart sensor
First Claim
1. A programmable interface device for use with a smart sensor and an indicating instrument, comprising means for determining calibration data based on an estimated property value of a sensed environmental property and characterizing data that includes data characterizing the operation of the smart sensor, and means for communicating with the smart sensor and the indicating instrument, including means for communicating the calibration data to the indicating instrument and means for receiving the estimated property value.
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Accused Products
Abstract
A smart temperature sensing system and method for improved performance of smart temperature sensors when used in conjunction with an indicating instrument. This sensing system uses a microprocessor-based interface to send a signal to the indicating instrument via an existing communications port. The sent signal may consist of a calibration offset value to correct the indicated temperature in the instrument. This offset value is determined from data resident within a memory device in the temperature sensor.
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Citations
28 Claims
- 1. A programmable interface device for use with a smart sensor and an indicating instrument, comprising means for determining calibration data based on an estimated property value of a sensed environmental property and characterizing data that includes data characterizing the operation of the smart sensor, and means for communicating with the smart sensor and the indicating instrument, including means for communicating the calibration data to the indicating instrument and means for receiving the estimated property value.
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8. A system for providing an indication of an environmental property, comprising:
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a smart sensor including a sensor unit operable to sense the environmental property and output a signal indicative of the sensed property, and a local memory unit having characterizing data including data characterizing the operation of the sensor unit;
an indicating instrument connected to the smart sensor for receiving the signal indicative of the sensed property and for determining an estimated value of the sensed property from the signal indicative of the sensed property; and
an inter-face device interconnected between the smart sensor and the indicating instrument for retrieving the characterizing data, and receiving the estimated value of the sensed property outputting the calibration data to the indicating instrument, the interface device having means for determining the calibration data based on the characterizing data and the estimated property value. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for using an interface device with a smart sensor and an indicating instrument, comprising the steps of connecting the interface device between the smart sensor and the indicating instrument;
- transmitting a sensed property signal from the smart sensor to the indicating instrument;
determining an estimated property value based on the sensed property signal;
transmitting the estimated property value to the interface device;
transmitting characterizing data to the interface device including data characterizing the operation of the smart sensor;
determining calibration data from the estimated property value and the characterizing data; and
determining an indicated property value based on the estimated property value and the calibration data. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28)
- transmitting a sensed property signal from the smart sensor to the indicating instrument;
Specification