Environmental condition sensor device and method
AssigneeDallas Semiconductor Corporation
InventorsJames D. Awtrey, Hal Kurkowski, Robert D. Lee
Life of this patent
Estimating the term…
Abstract
A device and method for measuring temperature is disclosed. The device, for example, can include a thermocouple configured to generate a voltage indicative of a junction temperature; a memory device configured to store a unique device ID and to store data; a logic unit connected to the thermocouple and the memory device; an I/O interface connected to the logic unit, the I/O interface configured to communicate with a computer system; and an internal temperature sensor connected to the logic unit, the internal temperature sensor configured to determine a cold junction temperature.
Claims11
A system for monitoring environmental conditions, the system comprising:
- a computer;
- a data line connected to the computer;
- a reference line connected to the computer;
- at least one environmental monitoring device (EMD) connected to the data line and the reference line;
- wherein said at least one EMD communicates with the computer over the data line in digital format and wherein each EMD is separately and uniquely digitally addressable on at least one bus by said computer;
- further wherein said at least one EMD comprises a memory capable of storing a unique device ID and calibration data.
Dependencies are inferred from the claim text.