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Pre-Workshop

Pre-Workshop. 2006-06-01 10:00 – 12:00 @102A1 Esaki Laboratory. Introduction. Theme Publish / Subscribe Model Content-based Network We focus on “Data Collection”. Discentralize Database Discentralize Data Entry Point. ?. P/S CBN. Discentralized System. Centralized System.

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Pre-Workshop

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  1. Pre-Workshop 2006-06-01 10:00 – 12:00 @102A1 Esaki Laboratory

  2. Introduction • Theme • Publish / Subscribe Model • Content-based Network • We focus on “Data Collection”. • Discentralize Database • Discentralize Data Entry Point ? P/S CBN Discentralized System Centralized System

  3. System Overview Databases Content-based Network Virtual Sensors

  4. Sensor Emulator (Publisher) Router sensor data Publish Interface (IP, port) PROCESS Configuration Monitor Virtual Sensors

  5. Sensor Data <?xml version=“1.0” ?> <sensor_data> <sensor_id>92a6e710-fdda-4317-a862-bacb5d53475c</sensor_id> <sensor_type>Temperature</sensor_type> <time>2006-05-12 03:12:34</time> <latitude>35.54256</latitude> <longitude>139.2345</longitude> <value>25.7</value> </sensor_data> sensor_id: Universally Unique IDentifier (UUID) sensor_type: Temperature, Humidity, Pressure, RainFall, WindDir, WindSpeed time: Current Time latitude: [-90 ,+90] (“+” means north, “-” means south) longitude:[-180,+180] (“+” means east, “-” means west) value: depends on sensor_type

  6. Sensor Configuration • IP address and port number of the router (default: TCP5001) • The number of sensor to emulate. • Publish frequency (default every one second.)

  7. Sensor Emulator Monitor • The number of sensor. Ex. 2000 • The amount of whole current traffic. Ex. 2043 (times/sec) The number of sensor: 2000 Traffic: 2043 (times/sec)

  8. Database System (Subscriber) Monitor Configuration Subscriber registration script JDBC sensor data PostgreSQL Registration Interface (IP, port) Router

  9. Subscriber Registration Script <?xml version=“1.0”?> <subscribe> <xpath>/sensor_data[.....]</xpath> <notify_ip>10.0.2.5</notify_ip> <notify_port>5003</notify_port> </subscribe>

  10. PostgreSQL • DB Name: livee • User Name: livee • Append all the data received to the table sensor_data. CREATE TABLE sensor_data( data_id bigserial primary key, sensor_id text not null, sensor_type text not null, time timestamp not null, latitude float8 not null, longitude float8 not null, value text not null );

  11. Database Monitor • Subscribe Data Traffic • Transaction Timespan • ポアソン分布を得られるか？

  12. Router Configuration Monitor Subscriber Registration Interface (default:TCP5002) Sensor Data Publish Interface (default:TCP5001) sensor data registration script

  13. Router Monitor • The number of Subscriber Joined. • For each subscriber, • Notification Succeeded Count • Notification Fault Count • Backbone Traffic • Publish Data Traffic • Notification Traffic

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