Smart sensors, Smart Speed Bumps
This document outlines activities and projects involving smart sensors. It includes: 1) Activities to evade motion detection sensors and tour different sensors. 2) A project to build a microphone using a PVDF sensor. 3) Exploring the piezoelectric effect and measuring piezoelectric and pyroelectric responses. 4) A design project to build a coin counter using a piezo sensor. 5) A proposed final project called "Smart Speed Bumps" that uses sensors to only activate speed bumps for speeding vehicles.
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Smart sensors, Smart Speed Bumps
- 1. AL-BAIRAQ I AM DISCOVERINGMATERIALS SMART SENSORS PHD ADEL EMAD MOHAMED ALEMADI SALEH AHMAD THAMER ALYAFIY
- 2. OUTLINE • Introduction • Activity1: Evading Motion Detection • Activity 2: Taking a tour of some sensors • Activity 3: Making Microphone • Activity 4: Exploring the Piezo Effect :Inside story • Activity 5: Measuring Piezoelectric or Pyroelectric Response • Design Project: Design a coin counter • Product Idea:
- 3. INTRODUCTION • A smartsensor is a device that takes input from the physical environment and uses built- in compute resources to perform predefined functions upon detection of specific input and then process data before passing it on.
- 4. ACTIVITY 1: EVADINGMOTION DETECTION, • Trying to evade the infrared sensor, We walked slowly, Walked Fast, And stopped in front of it.
- 5. ACTIVITY 1: EVADINGMOTION DETECTION, • We have known that the infrared sensors can detect you whether you're stopped or moved.
- 6. ACTIVITY 2: TAKINGA TOUR OF SOME SENSORS, • To know the way that each sensor works. • 1- Get some different sensors. • 2- Check how it is work. • 3- Use it, And compare between them.
- 7. ACTIVITY 2: TAKINGA TOUR OF SOME SENSORS, • It would be very useful to discover and use new different sensors, Sensors can be used differently depending on its input. Processing unit InputOutput Electric circuit TemperatureDigital No.Thermometer Electric circuit A SoundMoveSound Sensor Electric circuit A SoundA Sound/ touch Talking Ben
- 8. ACTIVITY 3: MAKING MICROPHONE, •Tolearn how to use a specific sensor. ─ 1-Get a Sound Speaker, A Balloon Cup. ─ 2-Using the Balloon Cup to magnify the Sensor. ─ 3-Connect the Sound Speaker to a PVDF Sensor, Using a Croco” Socket. ─ 4-Hear your mate’s voice talking into the PVDF.
- 9. ACTIVITY 3: MAKING MICROPHONE, •We have known how to make a Microphone, And how simple is it, As we can see that the Rigid PVDF is better than the Flexible PVDF, However the Flexible PVDF could be useful for Talking response. Rigid PVDFFlexible PVDF MoreLessScratch MoreLessBlow MoreLessFlick LessMoreTalk
- 10. ACTIVITY 4: EXPLORINGTHE PIEZO EFFECT :INSIDE STORY, • To get into the PVDF’s Chemical Structure, “C2F2H2”
- 11. ACTIVITY 5: MEASURING PIEZOELECTRICOR PYROELECTRIC RESPONSE, • To know the difference between the “Pyro” and “Piezo”. • 1-Get a PVDF Sensor, Croco” Socket, VoltMeter. • 2-Connect the VoltMeter with the PVDF. • 3-Use it and see how does each one responses with the moves an punches.
- 12. ACTIVITY 5: MEASURING PIEZOELECTRICOR PYROELECTRIC RESPONSE, • The more pressure we put the more voltage we get, Also the more heat we affect the more voltage we get. • The Piezo is about a pushing force sensor, And the Pyro is like a Heat or Temperature Sensor, PVDF can be used for both of them in many sides.
- 13. DESIGN PROJECT: DESIGNA COIN COUNTER, •To use a Piezo Sensor, Know How does Coin Counter Machines Works. • 1-Get a “Ruler, Sponge, Stand, Different Coins, Piezo Sensor connected to the pc”. • 2-Put the ruler on the sponge. • 3-Stand the ruler on the stand. • 4-Put the sensor down the ruler. • 5-Slide down the coins and see how the sensor responses on your PC.
- 14. DESIGN PROJECT: DESIGNA COIN COUNTER, • The more mass you have the more Volt/Potential you get, And That’s how the Coin Counters Detect the coin inserted to it. Coin3Coin2Coin1 6.8g3.2g1.6gMass 0.46v0.32v0.35vv1 0.51v0.46v0.32vv2 0.61v0.45v0.37vv3 0.52.6v0.41v0.34.6vaveg
- 15. FINAL PROJECT: (TITLE: ATTRACTIVETITLE THAT PRESENTS YOUR PROJECT/PRODUCT) Final Project/ product At least :5 to 7 slides ( 5 mins of explanation) Total time of presentation (Max 10-15 mins)
- 16. FINAL PROJECT: “SMART SPEEDBUMPS” The Smart Speed Bumps, Its something that we really need in our streets. If you think about it, it's strange that cars are sold that vastly exceed speed limits. The highest speed limit anywhere in Qatar is 120 km/h, yet we can freely purchase cars capable of doing double that amount. While governments could mandate that all cars come with speed governors, none are willing to take such a draconian step. Instead of using external methods to prevent people from Speeding which wastes our resources, we could use this SmartBump System.
- 17. INCREASES OUR ROADS’SAFETY AIM OF THE WORK, • The SmartBump System have to increase our streets safety, we could prevent many accidents from happening probably, However The SmartBump collectively decreases wear and tear. • Perhaps the most inefficient methods to prevent speeding is the pursuit-ready policeman who must sit in an idling cruiser, manning a radar gun, that's a waste of both manpower and resources, even if tickets bring in revenue. It would be better if people were simply motivated to not speed in the first place.
- 18. “SMART SPEED BUMPS” HYPOTHESIS, Sowhy is this better than a far-cheaper speed bump? • it's because the SmartBump leaves law-abiding drivers unmolested while only inconveniencing the speeders. • This just leading us towards our National Vision 2030, To increase our technical developing, and reaches the maximum safety levels at all.
- 19. “SMART SPEED BUMPS” MATERIALSAND METHODS, Its kind of simple, • Materials: “Speed Detector, SmartBump, Control System” • Methods: Here’s how it works, For instance, The speed limit is 40 KM/H and a speeder came on 60 KM/H, The Bump Will automatically open ”Goes Down” as shown in the pics, The Driver will get a physical reminder to slow down, Then close back. And if someone was under the speed limit it will stay closed, And he won’t be molested to go on a speed bump.
- 20. “SMART SPEED BUMPS” RESULTS, •At the end, We will get a complete Smart Bumps system which will offers us both Safety and Non-Wasting resources anymore. And for sure it will decrease the amounts of accidents and speeding in the same way. One more thing, That it’s a big step to reach our National Vision 2030. • However, We can use this System in front of schools, hotels, etc…
- 21. “SMART SPEED BUMPS” RECOMMENDATIONS, •This System have to be used in specific areas, Such as in front of the schools “Where students cross the road or Where the buses moves out of the schools”. • Our System should be checked and simulated every 3 months, To keep sure that it works correctly. •
- 22. CONCLUSIONS Finally, We havelearned how to use and diagnoses some of the Smart Sensors, And known how to create some Daily-Use gadgets easily. Sensors can improve our lives if we do really use it correctly :)
- 23. ACKNOWLEDGMENT Many thanks toAL-Bairaq team from Center for Advanced Materials (CAM), Qatar University for supporting us during our journey with a AL- Bairaq. Also, I would like to thank the sponsors UNESCO, Qatar National Commission, Ras Gas, and Shell.