Date post: | 13-Jan-2016 |
Category: |
Documents |
Upload: | monica-eaton |
View: | 215 times |
Download: | 0 times |
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