1. Parking Space Finder Lucia Wiguno Thursday, April 15 2004

2. Data collection The tag reader in the parking meter scans the ID stores in the memory The tag reader in the parking meter scans the ID stores in the memory Parking meter is also equipped with GPS receiver that will give information about the location of the meter and the time Parking meter is also equipped with GPS receiver that will give information about the location of the meter and the time

3. GPS Receiver A device that receives positional data from satellites and computes its own location based on the distance that the GPS receiver is located away from the satellites. A device that receives positional data from satellites and computes its own location based on the distance that the GPS receiver is located away from the satellites. It will convert this position into a latitude and longitude It will convert this position into a latitude and longitude

4. What to do with the data? Data need to be processed further. Before that data need to be transferred to computer host Data need to be processed further. Before that data need to be transferred to computer host Data need to be transferred continually. Data need to be transferred continually. Want to use wireless network to transmit data Want to use wireless network to transmit data

5. Information flows Using GPRS to transfer the data through a mobile network Using GPRS to transfer the data through a mobile network The receiver is connected to a device that is low cost, can transmit the data at a reasonable time interval. It must be able to communicate with a GPRS modem The receiver is connected to a device that is low cost, can transmit the data at a reasonable time interval. It must be able to communicate with a GPRS modem The device is essentially a serial link between the GPS device and the remote computer where the data sent. The device is essentially a serial link between the GPS device and the remote computer where the data sent.

6. GPRS (General Radio Packet Service) It offers higher capacity, internet based content, and packet based data services. It offers higher capacity, internet based content, and packet based data services. It has maximum speed of 171.2 kbps, since data is transmitted quickly then it’s less costly It has maximum speed of 171.2 kbps, since data is transmitted quickly then it’s less costly Immediacy: no dial up connection is necessary Immediacy: no dial up connection is necessary

7. GPRS (continued) Requirement: Requirement: A mobile phone or terminal that supports GPRS A mobile phone or terminal that supports GPRS Subscription to a mobile network that supports GPRS Subscription to a mobile network that supports GPRS A destination to receive or send information, most likely internet address A destination to receive or send information, most likely internet address

8. Information flow (continued) Once the data received by the servers then it will be processed further Once the data received by the servers then it will be processed further Data will be read and processed such that it will be accessible through the internet. Data will be read and processed such that it will be accessible through the internet. Next step would be application. Next step would be application.