Touch screen controlled surveillance vehicle
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Touch Screen controlled surveillance vehicle PowerPoint PPT Presentation


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Touch Screen controlled surveillance vehicle. Block Diagram. 4-Wire Touch Screen. ITO conductive layers FPC Cable Active Area R touch ↓ when the TS is touched. 3-D Electrical Equivalent of the TS. Screen Interface to the MCU. X & Y position Measurements. Problems Faced.

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Touch Screen controlled surveillance vehicle

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Touch screen controlled surveillance vehicle

Touch Screen controlled surveillance vehicle


Block diagram

Block Diagram


4 wire touch screen

4-Wire Touch Screen

  • ITO conductive layers

  • FPC Cable

  • Active Area

  • Rtouch ↓ when the TS is touched

3-D Electrical Equivalent of the TS

Screen Interface to the MCU


Touch screen controlled surveillance vehicle

X & Y position Measurements


Problems faced

Problems Faced

  • Switching i/p & o/p on same lines

  • Fluctuations in readings if done fast

  • Need of Touch Interrupt

  • ADC resolution 10 bit to 8 bit

  • Noise on lifting stylus


Graphical lcd

Graphical LCD

  • 128x64 pixels

  • KS0108 on-chip controller

  • Screen divided into two parts- left & right


Touch screen controlled surveillance vehicle

GLCD working


Problems faced1

Problems Faced

  • No ready library available

  • Timing

  • Simulation

  • Reading from the GLCD

  • Green version voltage thresholds different from the Blue version


Background math

Background Math

a = x1 – x0

b = y1 – y0

m = b/a

Distance:

Rectangular to Polar Conversion

Angle:


Touch screen controlled surveillance vehicle

θ2

θ1

θ0

From Transmitter:

s[angle],[distance]

e.g. s0030,040

s-050,020

At receiver:

θ = θ2 – θ1

Rotate the vehicle by angle ‘θ’

Then move forward by ‘d’ distance


Demonstration

Demonstration


Touch screen controlled surveillance vehicle

Touch ControlSurveillance Vehicle

Welcome Screen

Searching...

Device 1

Search for all the devices in thevicinity of the transmitter

Mode:

Automapping

User guided

Select ‘Mode’:Autonomous Mapping of the region or

Manually guiding the vehicle

Survey Send Clear

The Main Screen with active area & menu


Touch screen controlled surveillance vehicle

Draw the path to be followed(100 samples will be taken)

‘Send’ the data to the vehicle through RFand start the vehicle

‘Clear’ screen to draw another path

Survey Send Clear

Survey Send Clear

Survey Send Clear

Survey Send Clear

Temp=

34.00 C

Time=

12:00:00

‘Survey’ to get the sensor data from the vehicle


Touch screen controlled surveillance vehicle

Thank You


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