Intelligent sensor

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Intelligent sensor

  1. 1. INTELLIGENT SENSORS By MUHAMMAD YOUNAS ROLL NO SE-18
  2. 2. Overview of the presentation <ul><li>What is an Intelligent sensor ? </li></ul><ul><li>Intelligence meaning and how to get it? </li></ul><ul><li>Conventional sensors aren’t perfect </li></ul><ul><li>Architecture of intelligent sensors. </li></ul><ul><li>What Intelligent Sensor can do? </li></ul><ul><li>Applications. </li></ul><ul><li>Real world example. </li></ul>
  3. 3. WHAT IS AN INTELLIGENT SENSOR? <ul><li>A sensor that is capable of modifying its internal behavior to optimize the collection of data from external world along with advanced learning capabilities. </li></ul><ul><ul><ul><li> OR </li></ul></ul></ul><ul><li>A device that combines a sensing element and a signal processor on a single integrated circuit </li></ul><ul><li>Basic integrated electronics (signal </li></ul><ul><li>conditioning, ADC) </li></ul><ul><li>A micro-processor </li></ul><ul><li>Logic functions and decision making </li></ul>
  4. 4. Intelligence meaning & How to get it? <ul><li>The ability to combine </li></ul><ul><li>A priori knowledge (available before experience) </li></ul><ul><li>Adaptive learning (from experience) </li></ul><ul><li>Intelligence is introduced using </li></ul><ul><li>computational power (microprocessor). </li></ul>
  5. 5. Conventional sensors aren’t perfect? <ul><li>Their properties usually change over time, a </li></ul><ul><li>phenomenon known as drift. </li></ul><ul><li>Poor adaptation to change in conditions or have </li></ul><ul><li>no intelligence. </li></ul><ul><li>Most sensors require some sort of specialized </li></ul><ul><li>hardware called signal-conditioning circuitry in </li></ul><ul><li>order to be of use in monitoring or control </li></ul><ul><li>applications . </li></ul><ul><li>Standard sensors usually need to be physically </li></ul><ul><li>close to the control and monitoring systems that </li></ul><ul><li>receive their measurements </li></ul>
  6. 6. Continued…………….. <ul><li>Quantities that are recognized only by human </li></ul><ul><li>sensory systems and are not clearly defined </li></ul><ul><li>cannot be sensed by simple present sensors. </li></ul><ul><li>For example odor and taste. (E-NOSE) </li></ul><ul><li>Sensing of multidimensional states is </li></ul><ul><li>difficult. We can imagine the environment as </li></ul><ul><li>an example of a multidimensional state. It is </li></ul><ul><li>a widely spread state of characteristic </li></ul><ul><li>parameters which are spatially dependent </li></ul><ul><li>and time-dependent </li></ul>
  7. 7. Architecture of intelligent sensors.
  8. 8. What intelligent sensors can do? <ul><li>SELF CALIBRATION AND DIAGNOSTICS </li></ul><ul><li>Is the output a reasonable value? </li></ul><ul><li>Does it agree with the result of an adjacent sensor? </li></ul><ul><li>Is the rate of change of the output reasonable? </li></ul><ul><li>Is the output actually changing? </li></ul><ul><li>COMPHENSATION </li></ul><ul><li>Adjusting Gain By means of programmable gain </li></ul><ul><li>amplifiers. </li></ul><ul><li>Linearity introduced by means of look-up tables </li></ul>
  9. 9. Continued………… <ul><li>COMPUTATION </li></ul><ul><li>Signal conditioning (e.g., filtering) </li></ul><ul><li>Signal conversion (e.g., analog to digital) </li></ul><ul><li>Logic functions (e.g., triggering events) </li></ul><ul><li>Data reduction (e.g., feature extraction) </li></ul><ul><li>Decision making (e.g., classification) </li></ul><ul><li>INTEGRATION </li></ul><ul><li>Involves the coupling of sensing and computation at the chip level. This can be implemented using (MEMS),nanotechnology and bio-technology. </li></ul>
  10. 10. APPLICATIONS <ul><li>Automatic Assembly : </li></ul><ul><li>Intelligent Robots have a significant impact upon </li></ul><ul><li>production speed, capacity and complexity. </li></ul><ul><li>Self-repairing are an obvious side-effect of such </li></ul><ul><li>capabilities. </li></ul><ul><li>Smart fabrics and Intelligent textiles : </li></ul><ul><li>Material that incorporates clever electronics. </li></ul><ul><li>Clothes that monitor your heart, measure the of you </li></ul><ul><li>chemical composition of your body fluids or keep </li></ul><ul><li>track and your local environment </li></ul><ul><li>Reduce the number layers required by the wearer </li></ul><ul><li>while remaining suitable for a variety of weather </li></ul><ul><li>conditions. </li></ul>
  11. 11. SIDEWALL TORSION SENSOR <ul><li>The sidewall torsion sensor (SWT) was designed and developed by Continental Inc. in Germany. </li></ul><ul><li>It provides information about the forces on a tire that can help the driver handle the dynamics of a vehicle. </li></ul><ul><li>The tire sidewall is magnetized along its entire circumference with alternating north and south poles. </li></ul><ul><li>Both the longitudinal and lateral forces acting between the tire and the road surface cause deformation. </li></ul><ul><li>This deformation and the resulting forces can be estimated based on the alternation of the magnetic poles monitored by two sensors attached to the chassis. </li></ul>
  12. 12. ADVANCED DRIVER ASSISTANCE SYSTEMS
  13. 13. ADAS ADVANTAGES : <ul><li>Adaptive Cruise Control </li></ul><ul><li>Adaptive Light Control </li></ul><ul><li>Night Vision </li></ul><ul><li>Intersection Collision Warning. </li></ul><ul><li>Front and Rear Collision Warning </li></ul><ul><li>Braking and Stability Control Assistance </li></ul><ul><li>Increase Fuel Efficiency </li></ul>
  14. 14. <ul><li>ANY QUESTIONS????????? </li></ul>

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