22/10/2012| Dept. of Computer Science | Databases and Distributed Systems Group | Pablo Guerrero | 1 Pablo Guerrero, Iliya Gurov, Kristof Van Laerhoven, Alejandro Buchmann Diagnosing the Weakest Link in WSN Testbeds: A Reliability and Cost Analysis of the USB Backchannel
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22/10/2012| Dept. of Computer Science | Databases and Distributed Systems Group | Pablo Guerrero |1 Pablo Guerrero, Iliya Gurov, Kristof Van Laerhoven,
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22/10/2012 | Dept. of Computer Science | Databases and Distributed Systems Group | Pablo Guerrero | 1
Pablo Guerrero, Iliya Gurov, Kristof Van Laerhoven, Alejandro Buchmann
Diagnosing the Weakest Link in WSN Testbeds: A Reliability and Cost Analysis of the USB Backchannel
Testbeds 101
Debugging and reprogramming used often in experimentation Testbed’s goal: to facilitate WSN experimentation through
centralized node reprogramming, and data collection for posterior evaluation.
Expensive scientific instrument: initial acquisition and deployment maintenance and operation
22/10/2012 | Dept. of Computer Science | Databases and Distributed Systems Group | Pablo Guerrero | 2
this work’s topic:“backchannel”
a) (remote) users
b) server
c) sensor network
USB as Wired Interface to Sensor Nodes
USB (probably) first introduced with Telos design USB-to-serial chip to access MCU node powered via USB port, if connected
22/10/2012 | Dept. of Computer Science | Databases and Distributed Systems Group | Pablo Guerrero | 3
Wired, USB Backchannel
22/10/2012 | Dept. of Computer Science | Databases and Distributed Systems Group | Pablo Guerrero | 4
server
sensor network
without support layer- 1:48 [SignetLab]
USB
Wired, USB Backchannel
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server
sensor network
with support layer
support layer
Ethernet
USB
Wired, USB Backchannel
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