[Firebug-cvs] firebug/web fireboard.html,NONE,1.1 weatherboard.html,1.7,NONE

SourceForge Headquarters 225 Broadway Suite 1600 San Diego, CA 92101 +1 (858) 422-6466

Update of /cvsroot/firebug/firebug/web
In directory sc8-pr-cvs1:/tmp/cvs-serv25578

Added Files:
	fireboard.html 
Removed Files:
	weatherboard.html 
Log Message:
Removed weatherboard web page, replaced with 
fireboard web page.

--- NEW FILE: fireboard.html ---
<html xmlns="http://www.w3.org/1999/xhtml">

  <head>
    <title>
      Fire Board --- Sensor Data Collection application
    </title>
    <link rel="SHORTCUT ICON" href="./images/favicon.ico">
    <link type="text/css" rel="stylesheet" href="firebug.css">
    <meta name="author" content="David M. Doolin, UC Berkeley" />
  </head>

    <body>


      <h1>The Fire Board sensor platform</h1>

      <p>
	The Fire Board is a collection of five sensors mounted on a 
        printed circuit board, manufactured by 
        <a href="http://www.xbow.com">Crossbow Technology, Inc.</a>,
        and marketed under the producted identification MTS420CA.
      </p>

      <p>
	<center>
	  <img src="./images/fireboard_top.jpg" height="195" 
	    alt="Top view of Fire Board" />
	  <img src="./images/fireboard_bottom.jpg" height="195"
	    alt="Bottom view of Fire Board" />
	</center>
      </p>


      <p>The sensors mounted on the Fire Board are:</p>
      <ul>
	<li>Sensirion SHT11 temperature and humidity sensor.</li>
	<li>Intersema barometric pressure sensor.</li>
	<li>LeadTek 9546 GPS unit.</li>
	<li>ADXL accelerometer.</li>
	<li>Taos TLS257 light intensity sensor.</li>
      </ul>


      <h2>Sensirion SHT11 temperature and humidity sensor.</h2>

      <h2>Intersema barometric pressure sensor.</h2>

      <h2>LeadTek 9546 GPS unit.</h2>

      <h2>ADXL accelerometer.</h2>

      <h2>Taos TLS257 light intensity sensor.</h2>


      <h1>Collecting Sensor Data From Fire Board</h1>


      <P>
	We collect temperature data from <a href="http:
	  //www.sensirion.com/en/sensors/humidity/default.htm">Sensirion SHT11.</a><BR>
	SHT11 proivde humidity sensor and temperature sensor with the multiplex scheme. 
	
	The Data Structure for the communication data packet is defined in SensorMsg.h.

	<center>
	  <table class="code">
	    <tr class="code">
	      <td class="code">
		<b>SensorMsg.h</b> 
		<pre>
           typedef struct SensorMsg {
           uint16_t  MoteID;           //TOS_LOCAL_ADDR
           uint16_t  HumidityData;     
           uint16_t  TempData;
           }SensorMsg;

           enum {
             AM_SENSORMSG = 128
           };
		</pre>
	      </td>
	    </tr>
	  </table>
	</center>


      <p>
	The mote attached with WeatherBoard send data packet in AM 
	type through the RF.  The GenericBase is the receiver of 
	these packets. We use SensorPacket---a Java application program
	to resolve the temperature readout from the packet, and do 
	the mathmatics coversion from the readout to the actual 
	temperature.
      </p>

      <center>
	<table class="code">
	  <tr class="code">
	    <td class="code">
	      <b>SensorPacket.java</b> 
	      <pre>
      public String toString(byte [] packet) {
      String s = "Message <SensorMsg> \n";
		double tempC,tempF;
		long temp1;
		temp1=(packet[9]>=0)?packet[9]:(0-packet[9]);
		tempC= (packet[10]*256+temp1)*0.0098-38.4;
		tempF=(packet[10]*256+temp1)*0.0176-37.1;
		s += "  [MoteID="+Long.toString(packet[6])+Long.toString(packet[5])+ "]\n";
		s += "  [TempData="+Long.toString(packet[10])+ Long.toString(temp1)+"]";
		s += "  [="+Long.toString((long)tempC)+" Celsius Degree]";
		s += "  [="+Long.toString((long)tempF)+" Fahrenheit Degree]\n";
		return s;
		}
	      </pre>
	    </td>
	  </tr>
	</table>
      </center>
      The actual temperature can be achieved by calibration with the following formula.
      <center>
	<table class="code">
	  <tr class="code">
	    <td class="code">
	      <pre>
             Temperature= d1+d2*SO
             Celsius    : d1=-40, d2=0.01
             Fahrenheit : d1=-40, d2=0.018
             SO         : Sensor Output
	      </pre>
	    </td>
	  </tr>
	</table>
      </center>
      <p>
	The SensorPacket result will be like :

	<center>
	  <table class="code">
	    <tr class="code">
	      <td class="code">
		<pre>
          7e 00 0a 7d 06 03 00 99 99 f9 17 ed 55 0e 8b c9 98 89 b2 90 4e 40 08 88 98 8e cc
          0d cc b5 ba 99 98 0a 01 00
          Message <SensorMsg>
		  [MoteID=03]
		  [TempData=237]  [=19 Celsius Degree]  [=66 Fahrenheit Degree]
		  7e 00 0a 7d 06 03 00 99 99 fa 17 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
		  00 00 00 00 00 00 00 01 00
		  Message <SensorMsg>
		    [MoteID=03]
		    [TempData=236]  [=19 Celsius Degree]  [=66 Fahrenheit Degree]
		    7e 00 0a 7d 06 03 00 99 99 f9 17 ed 55 0e 8b c9 98 89 b2 90 4e 40 08 88 98 8e cc
		    0d cc b5 ba 99 98 0a 01 00
		    Message <SensorMsg>
		      [MoteID=03]
		      [TempData=237]  [=19 Celsius Degree]  [=66 Fahrenheit Degree]
		    </pre>
	      </td>
	    </tr>
	  </table>
	</center>

	The final result checked for accuracy with 
	a Raytek Raynger ST infrared thermometer.
	<center>
	  <img src="./images/thermal_calib2.jpg">
	</center>


      <hr />

      <p>
	Last updated: $Date: 2003/11/21 16:13:17 $ by $Author: doolin $.
      </p>

    </body>
</html>

--- weatherboard.html DELETED ---