Group 2:Parking Garage

Monitoring System (PGMS)

Matt DownesStephen OsbornAnup R. Daniel

Pawanjit S. Chawla

• Detection of vehicle occupancy by implementing a parking monitoring system

• Ultrasonic sensors detect presence of vehicles

• Atmel used to group a certain number of sensors to one transmission point

• RF transmitters and receivers used to send/receive data

• Rabbit 3010 module used to process the information from multiple RF receivers.

• Web server used to display vehicle occupancy information

• A web enabled wireless device allows a person to find the closest parking space

• PGMS will provide statistical information to the garage owners.

M UX

DEMUX

RS- 232VoltageLevel

Translator

ATMELAT90S8515

Receivern

Receive…

Receiver2

Receiver1

PING

ECHO

SELECT LINE

SELECT LINE

RABBITRCM 3010

Transmitter

WEB SERVER

TRANSMISSION CELL

• Rationale for selection of components– Microcontroller

• Computational Requirements• Memory Capacity• Ethernet Capability

– RF Module• Transmission Strength

– Sensors• Type of detection• Detection Range

– General Concerns• Weather Conditioning• Price

Computational Requirements

• Human interaction– Web server provides access to information– Parking vehicles in designated places– RCM2100 RCM2110 RCM2120 RCM2130

Microprocessor Rabbit 2000™ at 22.1 MHz– RCM3000 RCM3010 Microprocessor Rabbit

3000 at 29.4 MHz– 8-bit AVR Microcontroller Up to 16 MHz

Memory Capacity

• Web server used for main storage• Mostly for processing data

– RCM2100 RCM2110 RCM2120 RCM2130 – Flash 512K 256K 512K 256K – SRAM 512K 128K 512K 128K– RCM3000 RCM3010– Flash 512K (2 x 256K) 256K– SRAM 512K 128K– 8-bit AVR Microcontroller– Flash 64K – SRAM 4K

Ethernet Capability

• RCM2100 RCM2110 RCM2120 RCM2130 10Base-T, RJ-45, None 2 LED’s

• RCM3000 RCM3010 10Base-T, RJ-45, 2 LED’s

• 8-bit AVR Microcontroller

None

RF Module

• Transmission– Ability to be used in an inhospitable

environment– Ability to use different frequencies

• Reception– Ability to distinguish noise from actual signals– Ability to reproduce data from received signal

Sensors

• Detection Type– Inductive– Infrared– Ultrasonic

• Detection Range– Needs to be able to detect vehicles at variable

distances– Needs to be confined to a predetermined area

so as not to detect vehicles in other parking places

General Concerns

• Most components will be subject to the climate of the garage– Industrial vs. Commercial

• Wider range vs. More cost

• Price of Installation– Upfront cost vs. Long-term cost

• Power Consumption– Slow change in environment being monitored

Receiver #5

Receiver #4

Receiver #3

Receiver #2

Receiver #1

Rabbit

Cat5 Cable

Sensors

Transmitters

Receiver

Cat5 Cable connecting Sensors and Transmitter

Example Floor Plan Layout :

• Package One : Sensor Packaging

• Will be mounted in front of each parking space, such that the ultrasonic sensors are directed towards the front of the car

Schematic Notes :

- All measurements in cm

- Jack on side of box is for Cat5 cable (RJ45 connector)

• Package Two : Transmitter Packaging

• Will house an RJ45 connection brick, the Atmel ATmega8515L, the Linx TXM-315/433-LC RF transmitter, and its own power supply (used to power Atmel, Linx, and sensors). External antenna is for RF transmission

• Will be mounted on post/wall of garage (many per each floor of garage)

Schematic Notes :

- All measurements in cm

- Jacks on front of box are for Cat5 cables (RJ45 connectors)

• Package Three : Receiver Packaging

• Will house Linx RXM-315/433-LC-S RF receiver

• Will be mounted on edge of garage (1 per garage floor) vertically above the Rabbit packaging

Schematic Notes :

- All measurements in cm

- Coaxial out on front has been changed to Ethernet out

• Package Four : Rabbit Packaging

• Will house Rabbit 3010 and its own power supply (used to power Rabbit and RF Receiver

• Will be mounted directly below all of the receiver packages on ground floor of parking ramp

Schematic Notes :

- All measurements in cm

-Jack on side of box is for Cat5 cable (RJ45 connector)

- Coaxial in on front has been changed to Ethernet in (similar to Transmitter packaging

• Check the Transparencies