I was studying about sensors. I'm confused about the diffence between Sensors and Intelligent Sensors. Both seem same to me !!
What Difference between sensors and intelligent sensors
sensingsensor
Related Solutions
For such a sensor network I would absolutely consider using Dallas 1-wire components for great flexibility and reasonable price. It is well supported in Linux via owfs.
At www.hobby-boards.com there is a small T3-R1-A ready made board which you just connect with cat5/RJ45 priced at 18USD. According to the documentation it uses the DS18S20 sensor like already mentioned by BG100.
Temperature is a measure of the average thermal energy. A temp sensor will not tell you if we are talking a dry or wet bulb temp. The temperature is the same for both.
Wet or dry comes into play when you start thinking about how much thermal energy would be required to change the temperature of the air or how much condensation you will have if you lower the temperature of the air, etc.
To measure wet bulb, you need temperature and relative humidity. With those two sensors, you should have what you need.
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Best Answer
In the context of electrical engineering a sensor is just something that interprets some type of data, (like light, or sound) into a useable format for engineers. For example, a photodiode will convert light to a proportional amount of current. This is a dumb sensor. An engineer will need additional circuitry to read and understand the data depending on design, such as op-amps, D2As, etc etc. A sensor is a stand-alone device.
A smart sensor is a broad term but generally means it has the built in additional circuitry for a designer. For example, this motion sensor has an op-amp and digital circuitry built into the sensor module so you can plug it in and start using it right away. With digital or analog signals you can adjust its sensitivity and output range rather than adding amplifiers, A2Ds, and D2As to do it yourself. A smart sensor has additional circuitry to aid the designer's job of using and understanding the data. In the picture of the motion sensor, the white thing is just a "dumb" sensor, but the ICs, resistors, caps, and header make the module "smart".