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LabView Toolkit for CrossBow Users

 

 

CrossBow sensors have become very popular as a standard research platform for Wireless Sensor Networks. This toolkit developed in LabView helps easy data access, processing and even programming of these tiny sensors. Most of the programs here are written for mica2 platform of sensor nodes. Each program is accompanied by its help file in the VI. The programs need LabView 7.1 or higher to run.

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         Serial Communication Read/Write Mica2

 Authors: Prasanna Ballal, Vincenzo Giordano        

The Basic Serial Read and Write example performs a Serial Port Read, a Serial Port Write, or a combination of these actions. The user selects the actions (read or write) on the front panel. If both are selected, the VI will write the data first, read data, and then close the VISA session that is opened to the port. This VI will wait until the specified number of bytes is received at the port. Only the number of bytes specified will be read. We can configure the Baud rate and COM settings in the VI. The output gives the sensor number and sensor reading if TOSMsg packet is used.

 

 

         

         Packet Builder for Mica2

 Author: Prasanna Ballal

This VI builds packets for TOSMsg. It automatically adds the CRC to the message. This is used in conjunction with Basicserialrw.vi. TOSbase needs to be installed in the mote connected to the serial port.

 

 

 

         

         Packet Interpreter

 Author: Sankar Gorthi

This VI Unescapes the input TOS AM Packet and returns the payload and the CRC with the message acknowledge type, message type, length of the message, etc. For more details, refer to the Deciphering TOS packets manuals available online.

 

 

 

 

         TinyDB

 Author: Sankar Gorthi

Running the TinyDB applications:

1) Program your motes with the TinyDB application.
2) Note the Baud rate of the motes and set it in the appropriate controls in all the applications.
3) Run the Set Positions.exe application and place the motes at locations which correspond to the physical positions of the motes.
4) Save the resulting Pos.txt (keep the file name as is) in the same folder as the TinyDB EXE applications.
5) Make sure the SeqNo.val file is placed in the same folder too.
6) Run the desired application, setting the number of motes that are being used, the baud rate, optional query ID (default 4).
7) Run the application.
8) If the Application hangs and the STOP button does not respond, halt the application, reset the motes and make sure the batteries are fresh, the serial port is connected etc.

 

 

 

         Cricket Resources

        

This VI deciphers the Cricket packets from listener motes which contain the distance measured to the Beacon. Using the scheme shown in the VI, one can extract the appropriate data from the received packet. More details on the packet structure and the Cricket deployment scheme, refer to http://cricket.csail.mit.edu/index.php. Also, this VI sets the Cricket mote to the Listener mode of operation (assuming the mote's standard mode of operation is in the Beacon mode). The Crickets are programmed with the default scheme provided in the Cricket folder of the apps in the tinyos-1.x collection.

 

 

 

 

 

Still to come:

  • Program standard programs in TinyOS through LabView
  • RSSI measurements in LabView
  • Localization using RSSI
  • Localization using potential fields
  • Decentralized Clustering

 

 

 

TinyOS and VI logos belong to www.tinyos.net and www.ni.com respectively.

Site maintained by Prasanna Ballal

Advisor: Dr. Frank Lewis