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Low-cost Field Server. NARO National Agriculture and Food Research Organization Masayuki HIRAFUJI Haoming Hu. Field Server Sensor Network. Web Server Wi-Fi or Cellar-phone Sensors Camera LED Lighting Solar-cell. Towards 100USD Field Server. elab experience: $2,000 – 4,000.
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Low-cost Field Server NARO National Agriculture and Food Research Organization Masayuki HIRAFUJI Haoming Hu
Field Server Sensor Network • Web Server • Wi-Fi or Cellar-phone • Sensors • Camera • LED Lighting • Solar-cell
Towards 100USD Field Server elab experience: $2,000 – 4,000 Panasonic: $5,000-10,000
A Prototype of Advanced Field Server • 24ch sensors • Solar cells • LED Projector • Single-lens reflex digital camera • Servo • Mesh-network router board • Face-recognition board • Internet radio board • FON router
An Advanced Field Server with 9 Cameras Surveillance against Unlawful Dumping
With a Infra-red Camera and a High Resolution Camera (Single-Lens Reflex Digital Camera)
Fundamental Architecture • Stable, Rugged and Durable • Connected by Ethernet & Wi-FiEasy to control on Windows and Linux • Constituted by Web DevicesEach devices in a Field Server functions as a Web server. • Minimum hardware and softwareThe Agent system and applications on a remote PC provide rich services.
Essential Elements of Field Server • Case • Field Server Engine • Wi-Fi Router • Network Camera • Sensors • LED Lighting
Field Server Engine $300 $30 • H8/3069 CPU • 1M bit SRAM • 24bit resolution A/D converter (16ch) • Direct Digital Synthesizer • Power photo MOS relay(2ch) • DC-DC converter(in 4-34V, out 5V) • Real-time clock • Battery backup • H8/3069 CPU • 1M bit SRAM • DC-DC converter(in 4-34V, out 5V)
Types of Wi-Fi Network • Mesh-network • WDS (Wireless Distribution System) • Wi-Fi/Ethernet Media Converter (Access Point, Client)
ASUS’s Wireless LAN Router (WDS) WL-530g ($67) http://meraki.com/
International Use • Radio Regulatory • FCC in US • TELEC in JP • CE in EU • Distributers
D-Link’s Wireless Access Point (WDS) DWL-2100AP ($75-$113) http://www.dlink.com/
Thinktube’s Wi-Fi Mesh-network Router Rokko Mesh Router ($800) http://www.thinktube.com/en/
Meraki Network’s Wi-Fi Mesh Network Router ETSI Meraki mini ($49) http://meraki.com/
Estimation of Costs Total $209 - 12400 $30 - 300 $30 - 1000 $49 - 1000 $ 0 - 2000 $90 - 4000 $10 - 100 $ 0 - 2000 $ 0 - 1000 • Field Server Engine: • Case: • Wi-Fi device + Switching hub • Sensors • Camera • Fan, Power LED • Solar Cells • Assemble
$1000 Field Server • Small Case • Web Server • Wi-Fi • Sensors Temp. (Inside, Outside), Humidity, Solar-radiation, 4 ext. • Camera • LED Lighting