Parking Area Monitoring System

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Parking Area Monitoring System

• United Arab Emirates University
• Department of Electrical Engineering
• Graduation Projects Unit

supervised by Dr. Qurban Ali
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Outline

• Idea of our project
• Components
• Sensor
• Controlling circuit on button of TXM-433-LC
• Signal TXM-433-LC (Light Sound)
• Access Point
• Receiver circuit
• Testing the receiver circuit
• Prototype

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Idea of our project
Access Point
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shop
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Components

• Sensor
• low frequency circuit controlling circuit
• Signal
• TXM-433-LC (Light Sound)
• Access point
• RXM-433-LC receiver circuit building
• MSAccess VB programing

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Sensor

• Sensor VSN240
• It generates the signal every time up to car
  enter the park
• Prototype for the sensor that we built
• Low frequency circuit with controlling circuit
  were built to sense the car and to give the order
  to the TXM to press the button

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Controlling circuit on button of TXM-433-LC

• Short circuit testing was done on one of light
  button (S1) exists on surface of the TXM-433-LC
  board to know on four legs surrounded of one
  switch and we found the following results.

pins for switch
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• BJT transistor PNP types was used to control on
  switch either on or off
• D1 pin was connected to a collector pin on
  2N2905A PNP transistor and VCC with 3V pin was
  connected to emitter of transistor
• To determine the value of voltage which help us
  from doing pressing and releasing operations, we
  increased the entering voltage from voltmeter at
  base pin and we observed when the entered voltage
  2.46V, the light was ON meaning a car enters to
  park and when decreased the value of the voltage
  to 1.16V the light was off at receiver board
  meaning a park is empty

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pin description for PNP 2N2905A chip
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Photo emitter red light sensor and L507PI sensor
used as transmitter and receiver sensors
controlling circuit for button of TXM-433-LC
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Controlling circuit

• connected between controlling circuit on button
  of transmitter and sensor circuit

connection in TXM-433-LC
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Free Parking
Occupied Parking
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Signal TXM-433-LC (Light Sound)

• It creates and send the signal

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Access Point

• Access point that we built consist of
• RXM-433-LC and receiver circuit
• RXM receives the signal by antenna then it send
  it to receiver circuit to enter to PC

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receiver circuit inside a prototype
Receiver circuit with RXM and TXM
TXM connected to RXM
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Receiver circuit
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MAXIM (MAX-232)

• It is an integrated circuit that converts between
  the -10V and 10V
• we used the max232 to convert the 0 to 5V signal
  into a 3V to 12V / -3V to -12V, which help us
  to read it signal
• A converter chip is used to convert a TTL logic
  between TxD input pin and output pin

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Data Bus Connector (DB9)

• It has 9 pins which are required to meet the max
  232
• Two pins were used in our project
• The pins are the output transmitter and the
  ground
• The data from the receiver will be entered to
  receiver circuit by antenna.

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Receiver antenna
We choose this antenna for our project because it
can be received the high frequency 433MHz.
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Testing the receiver circuit

• Connected the receiver circuit to the power
  supply to supply 5V
• Digital multimeter used to measure the output of
  the circuit by measuring the voltage on pin 2 at
  DP9
• When we pressed the button we found small
  voltage and when we released, we measured 8.6V.

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Prototype
the entering park
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The parking and working our controlling sensor
circuit for a car
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Whole prototype
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The program

• This interface used make the system more secure
  by adding a user name and password.

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The GUI for the main system
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Search command
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Delete command
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Add New Contact Command
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Modify command
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Communicating between the software and hardware

• For that purpose Visual basic Professional will
  be used in order to have a communication between
  the soft ware and the hardware.

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Conclusions

• The owner for the small business gets benefit of
  monitoring his parking area by increasing his own
  profit in return
• Also the number of customers is expected to
  increase due to popularity of the shop by
  providing a suitable parking for its customers

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Problems and Challenges

• Short of Time
• Interfacing
• Loosing everything In the last month of second
  semester (GP-II), somehow we lost all data and
  application developed on Visual Basic.6 and MS
  Access