Parking Garage Projectx - Penn State Personal Web Server

Kyle
Bragalone


Jeff Broody

Bob
Yusi nski

EET 419

Penn State Uni versi ty

Problem:

The
student parking lot at our campus does not hold the
capacity of cars needed for the technology center.


This can
cause students to be late for their classes because they have
to resort to driving to the other side of campus, then walk
back to their class
.

Goal:

To design a system that monitors the ingoing and outgoing
vehicles in the lower student lot, and relays that information
to lighted
indicators.
These indicators will have three LED
lights of different colors to specify the different capacity
ranges using the traditional stoplight configuration.



Project Scope

•
Specific:

We will be building a prototype system that will
keep a real
-
time count of all vehicles entering/leaving the
lower parking lot.

•
Measurable:
The prototype will keep an accurate count of
vehicles, and transmit that information to LED indicators
located on the road.

•
Assignable:
Each group member will be responsible for the
following work:

•
Sending/ Receiving system/ Tone generator (Bob
)

•
Proximity sensing/ microcontroller (Kyle
)

•
Filters and led indicators (Jeff
)


SMART Objectives

•
Realistic: A

model of the life
-
size system will be used. This
will make the project more cost
-
effective, as well as easier to
troubleshoot.

•
Time
-
based:

A prototype of the system will be built and
functioning by May 2013.

SMART
Objectives Cont.

Block Diagram

•
9V Battery supply

•
Weatherproof housing of components

•
Maximum of 1 error for every 1000 counts

•
The metallic sensors will only count vehicles

•
Metallic sensors spaced 10ft apart

•
Automatic (daily reset) along with manual reset

•
Car count display on the housing

•
Wireless signal will reach the signals (≈300yd)

•
Keeps a real time count of parking lot fill




Specifications

•
Determining the distance necessary between the sensors

•
Programing of the microcontroller

•
Determining methods for omitting errors

Proximity Sensing / Microcontroller

•
Program microcontroller to light proper L.E.D. through the
filters

•
Construct housing for the L.E.D. circuitry

Constructing the 3 filters:

•
High pass

•
Low pass

•
Band pass


Filters and Indicators

•
Utilize tone generation techniques learned in previous course
work

•
Construction and troubleshooting of these circuits

•
Programming this system to work with the micro controller

Sending/Receiving tone generator

Gnatt

Chart

Risk Analysis

Risk Matrix



Design a wireless transmission system using generated tones.

•
Will
each tone match the required frequency range?

•
(
Low <2 kHz, mid 3 kHz<x>4kHz, high >5 kHz)


•
Will
the sending/receiving signal travel the required distance
using VOX?




Sending/ Receiving system/ Tone
Generator


Program
the microcontroller to process sensor data, and activate
correct generator.

•
Are
both sensors being accounted for in the programming?

•
Will
the microcontroller activate the proper tone based on
vehicle count?

Program microcontroller to account for vehicles only.


•
Will
the sensors omit foreign objects passing through?

•
Does
the program reset count each day to minimize error?




Proximity sensing/ microcontroller



Design and implement three filters.

•

Can the filters correctly differentiate between generated
tones?

•

Does the matching LED light when correct tone is passed
through filter?


Build
housing for the LED indicator and microcontroller.

•

Will the housings be able to withstand the elements?



Filers and led indicator