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NetSync : script-based acquistion managed in a network environment

NetSync : script-based acquistion managed in a network environment. NetSync was devised to solve a simple problem: how to manage an experiment with two or more participants ?.

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NetSync : script-based acquistion managed in a network environment

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  1. NetSync: script-based acquistion managed in a network environment NetSync was devised to solve a simple problem: how to manage an experiment with two or more participants ? Response was to design a “mixed” system: a script is executed locally on each participant’s computer, but some Stop and Go can be centrally managed by the experimenter from his (her) computer. The system was refined to be able to send script and stimuli to each participant’s computer and to get a copy of recorded data files at the end of the experiment. 10-12 April 2012, Mshs, University of Poitiers, France

  2. (our) WiFi network setup Clients runs “EP2.exe NetSync” WiFi router: creates a private network.Only selected computers can join in (static DCHP) 1 Gb Ethernet link Eye and Pen 2 dongle(15 network clients licence) External hard disk (data backup) 10-12 April 2012, Mshs, University of Poitiers, France Master runs Eye and Pen 2 (File/Acquisition/NetSync)

  3. NetSync: clients connection 1. Client announces itself to the Master 2. If the option is selected, client demands stimuli and scripts update 3. In reply to client request, Master sends stimuli and scripts files update 4. Master displays client information This client is ready This client is updating 10-12 April 2012, Mshs, University of Poitiers, France

  4. NetSync: script selection Scripts can be individually selected (client by client) or selected in a list of scripts that all clients have in common 10-12 April 2012, Mshs, University of Poitiers, France

  5. NetSync: session startup 1. Give a (significant) name to this recording session 2. Click here to start session Master creates a folder in Data named <session-name>_<date>_<time> [ At session end (if the option was selected), each client’s data recorded in this session will be copied into a sub-folder named from the client’s host name ] • Client receives: • session name • (Master) current time and date • participant name • script name Example: session name: TS-Adults (master) date: 11 April 2012 (master) time: 14:21:06 Folder name: TS-Adults_11042012_142106 Client creates a folder in Data named <session-name>_<(master)date>_<(master)time> to store recordings 10-12 April 2012, Mshs, University of Poitiers, France

  6. NetSync: session runs… Selected script is started on clients Script command WaitForNetSync pauses script execution Script execution resumes Click on Go button Script command SendMessageToNetSync example: SendMessageToNetSync(Item 3/12) 10-12 April 2012, Mshs, University of Poitiers, France

  7. NetSync: session ends Script execution is over When all clients are finished, end session Clients ready for a new session Clients data copy is in progress Clients script is over, but session is not finished data copy details are reported here 10-12 April 2012, Mshs, University of Poitiers, France

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