low-cost field server naro national agriculture and food research organization masayuki hirafuji...
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Low-cost Field Server
NARO National Agriculture and Food Research Organization
Masayuki HIRAFUJIHaoming Hu
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
Fundamental Architecture
• Stable, Rugged and Durable• Connected by Ethernet & Wi-Fi
Easy to control on Windows and Linux• Constituted by Web Devices
Each 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
Air filter
Fan
Wi-Fi card Web server card
Temperature sensor
Humidity. sensors Air inlet
Thermal insulator
Air outlet
Solar cell
Network camera
1. H8/3069 CPU2. 1M bit SRAM3. 24bit resolution A/D converter (16ch) 4. Direct Digital Synthesizer5. Power photo MOS relay(2ch)6. DC-DC converter
(in 4-34V, out 5V)7. Real-time clock8. Battery backup
Field Server Engine
$300 $30 1. H8/3069 CPU2. 1M bit SRAM3. 4. 5. 6. DC-DC converter
(in 4-34V, out 5V)7. 8.
1. Mesh-network2. WDS (Wireless Distribution System)3. Wi-Fi/Ethernet Media Converter
(Access Point, Client)
Types of Wi-Fi Network
Total
• Field Server Engine: • Case: • Wi-Fi device + Switching hub• Sensors • Camera • Fan, Power LED • Solar Cells • Assemble
$209 - 12400
$30 - 300
$30 - 1000
$49 - 1000
$ 0 - 2000
$90 - 4000
$10 - 100
$ 0 - 2000
$ 0 - 1000
Estimation of Costs
$1000 Field ServerSmall CaseWeb ServerWi-FiSensors Temp. (Inside, Outside), Humidity, Solar-radiation, 4 ext.CameraLED Lighting