What is intelligent sensor? There is no recognized scientific definition yet, but many people think that intelligent sensors are devices that assemble "sensors and microcomputers on a single chip." Or consider intelligent sensors to be "a device that integrates a sensitive component and signal processor on the same silicon or arsenic front chip." Obviously, this definition is too narrow.
Brckenridgc and Husson of NASA's Langeg Research Center believe that intelligent sensors need to have the following conditions:
(1) Eliminate outliers and exceptions by the sensor itself, providing more comprehensive and more realistic information than traditional sensors;
(2) with signal processing (including, for example, temperature compensation, linearization, etc.) functions;
(3) Random tuning and adaptation;
(4) Has a certain degree of storage, identification and self-diagnosis functions;
(5) Contains specific algorithms and can be changed as needed.
Either definition defines that the main feature of intelligent sensors is the combination of sensitive technology and information processing technology. In other words, intelligent sensors must have the ability to “perceive” and “cognize”. If you want to have information processing capabilities, you must use computer technology; considering the size of intelligent sensors, you can only use microprocessors.
