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国外大学生毕业设计

  signs into the EEPROM of the microcontroller.<span style='mso-spacerun:yes'>
  </span>Our implementation of the glove only deals with the 26 letters of the
  English alphabet that can be directly translated into American Sign Language
  (ASL).<span style='mso-spacerun:yes'></span>The part of our project that is
  different from other gloves is that after programming these letters into the
  microcontroller, letters are chosen at random for the student to practice and
  learn.<span style='mso-spacerun:yes'></span>The LCD display is used as a
  reference for how much more or less you need to bend each finger to correctly
  sign a letter.<span style='mso-spacerun:yes'></span>The student must then
  adjust their hand position to match the prompted letter within some specified
  range in order to be able to move on to the next letter.<o:p></o:p></span><span style='font-size:10.5pt;
  font-family:Arial;color:#666699'><o:p></o:p></span></p>
  <p class=MsoNormal style='margin-right:-6.85pt'><span style='font-size:10.5pt;
  font-family:Arial;color:#666699'>In order to use our product, the user must
  connect the Atmel 32 Microcontroller to the computer and use Hyper Terminal
  to program in the different hand positions of the alphabet.<span
  style='mso-spacerun:yes'></span>There is a black flip switch that should be
  turned on in order to signify TRAIN mode.<span style='mso-spacerun:yes'>
  </span>A yellow LED will light up in order to signify that the student is in
  the right mode.<span style='mso-spacerun:yes'></span>In order to input the
  position, a letter must be pressed on the keyboard followed by the ENTER
  key.<span style='mso-spacerun:yes'></span>Following that, the position of
  the letter must be held for approximately 10 seconds.<span
  style='mso-spacerun:yes'></span>The user is expected not to know ASL and
  can use a table of sign language letters for reference (thereby only having
  to use the computer once) or call in an American Sign Language expert to help
  the student perfect the letters of the alphabet.<o:p></o:p></span><span style='font-size:10.5pt;
  font-family:Arial;color:#666699'><o:p></o:p></span></p>
  <p class=MsoNormal align=center style='margin-right:-6.85pt;text-align:center'><span
  style='font-size:10.5pt;font-family:Arial;color:#666699'><img border=0 width=576 height=203
  src="image008.jpg" v:shapes="_x0000_i1028"><o:p></o:p></span><span style='font-size:10.5pt;font-family:Arial;color:#666699'><o:p></o:p></span></p>
  <p class=MsoNormal style='margin-right:-6.85pt'><span style='font-size:10.5pt;
  font-family:Arial;color:#666699'>After all the letters are programmed in, the
  black switch can be flipped and the yellow LED will be off thereby putting
  the microcontroller into PRACTICE mode.<span style='mso-spacerun:yes'>
  </span>At this point in time, the microcontroller can be removed from the
  computer, and the unit can be taken anywhere.<span style='mso-spacerun:yes'>
  </span>The user can then start practicing positions by looking at the LCD
  display as a reference.<span style='mso-spacerun:yes'></span>Using the LCD,
  the user will be able to adjust his or her fingers in order to try to match
  the letter that appears on the screen.<span style='mso-spacerun:yes'>
  </span>Once the position of the hand matches the letter on the screen,
  揗ATCH!will appear on the LCD and the next letter will appear on the LCD.<o:p></o:p></span><span style='font-size:10.5pt;
  font-family:Arial;color:#666699'><o:p></o:p></span></p>
  <p class=MsoNormal align=center style='margin-right:-6.85pt;text-align:center'><span
  style='font-size:10.5pt;font-family:Arial;color:#666699'><img border=0 width=576 height=203
  src="image010.jpg" v:shapes="_x0000_i1029"><o:p></o:p></span><span style='font-size:10.5pt;
  font-family:Arial;color:#666699'><o:p></o:p></span></p>
  <p class=MsoNormal style='margin-right:-6.85pt'><b style='mso-bidi-font-weight:
  normal'><span style='font-size:18.0pt;font-family:Arial;color:#666699'>Hardware/Software
  Tradeoffs<o:p></o:p></span></b><span style='font-size:10.5pt;
  font-family:Arial;color:#666699'><o:p></o:p></span></p>
  <p class=MsoNormal style='margin-right:-6.85pt'><span style='font-size:10.5pt;
  font-family:Arial;color:#666699'>There were a lot of trade offs between
  hardware and software.<span style='mso-spacerun:yes'></span>One of the
  major tradeoffs was that software has little portability.<span
  style='mso-spacerun:yes'></span>It is very necessary to have a computer
  nearby in order to run software.<span style='mso-spacerun:yes'></span>We
  avoided the use of the Hyper Terminal in PRACTICE mode because of the lack of
  portability.<span style='mso-spacerun:yes'></span>Using software can
  increase a lot of the capabilities of a sign language teacher.<span
  style='mso-spacerun:yes'></span>The software programs currently in the
  market are easily able to have animations of different words to help teach
  the student with a multitude of sound capability.<span
  style='mso-spacerun:yes'></span>By using mostly hardware, implementing
  words and sound into our program proved to be much more difficult.<span
  style='mso-spacerun:yes'></span>With software, a lot more storage capacity
  is available to program in many different features.<span
  style='mso-spacerun:yes'></span>We were unable to implement sound because
  of the lack of memory on the Atmel 32 Microcontroller.<o:p></o:p></span><span style='font-size:10.5pt;
  font-family:Arial;color:#666699'><o:p></o:p></span></p>
  <p class=MsoNormal style='margin-right:-6.85pt'><b style='mso-bidi-font-weight:
  normal'><span style='font-size:18.0pt;font-family:Arial;color:#666699'>Relevant
  Standards<o:p></o:p></span></b><span style='font-size:10.5pt;
  font-family:Arial;color:#666699'><o:p></o:p></span></p>
  <p class=MsoNormal style='margin-right:-6.85pt'><span style='font-size:10.5pt;
  font-family:Arial;color:#666699'>There are very few standards that are
  related to our project.<span style='mso-spacerun:yes'></span>The one more
  indirect standard related to our project is the RS-232 Serial Standard that
  we use to program our device with the different letters using the Hyper
  Terminal.<span style='mso-spacerun:yes'></span>The rest of our project is
  based more upon the flex sensors and accelerometer and their outputs to the
  analog to digital converter which currently do not have any standards
  directly related to them.<o:p></o:p></span><span style='font-size:10.5pt;
  font-family:Arial;color:#666699'><o:p></o:p></span></p>
  <p class=MsoNormal style='margin-right:-6.85pt'><b style='mso-bidi-font-weight:
  normal'><span style='font-size:18.0pt;font-family:Arial;color:#666699'>Relevant
  Patents<o:p></o:p></span></b><span style='font-size:10.5pt;
  font-family:Arial;color:#666699'><o:p></o:p></span></p>
  <p class=MsoNormal style='margin-right:-6.85pt'><span style='font-size:10.5pt;
  font-family:Arial;color:#666699'>Jameco has a patent on flex sensors which we
  used 5 of in our project; however, this does not conflict with the interest
  of our project.We are simply using their product in order to implement our glove.<o:p></o:p></span></p>
      <H2 style="MARGIN-RIGHT: -6.85pt; mso-line-height-alt: 10.5pt"><SPAN NAME="Intro" A><img src="line.jpg" width="550" height="30"></SPAN></H2>
  <H2 style="MARGIN-RIGHT: -6.85pt; mso-line-height-alt: 10.5pt"><span name="Intro" a><a name ="PD" id="PD"><img src="image012.jpg" width="435" height="34"></a></span></H2>
      </SPAN>
       <span
  style='font-size:18.0pt;font-family:Arial;color:#666699'><b>Program Details</b></span><span style='font-family:Arial;
  mso-fareast-font-family:Arial;color:#666699'><o:p></o:p></span></h2>
  <p class=MsoNormal style='margin-right:-6.85pt'><b style='mso-bidi-font-weight:
  normal'><span style='font-size:18.0pt;font-family:Arial;color:#666699'>Tasks</span></b><b
  style='mso-bidi-font-weight:normal'><span style='font-size:10.5pt;font-family:
  Arial;color:#666699'><o:p></o:p></span></b><b style='mso-bidi-font-weight:
  normal'><span style='font-size:10.5pt;font-family:Arial;color:#666699'><o:p></o:p></span></b></p>
  <span style='font-size:10.5pt;
  font-family:Arial;color:#666699'>This is an outline of the important tasks implemented
  in our code.<o:p></o:p></span><b style='mso-bidi-font-weight:
  normal'><span style='font-size:10.5pt;font-family:Arial;color:#666699'><o:p></o:p></span></b></p>
  <ul style='margin-top:0in' type=disc>
   <li class=MsoNormal style='color:#666699;margin-right:-6.85pt;mso-list:l2 level1 lfo1;
       tab-stops:list .5in'><span style='font-size:10.5pt;font-family:"Courier New"'>task1()</span><span
       style='font-size:10.5pt;font-family:Arial'> <o:p></o:p></span></li>
  </ul>
  <p class=MsoNormal style='margin-top:0in;margin-right:-6.85pt;margin-bottom:
  0in;margin-left:1.0in;margin-bottom:.0001pt;text-indent:-.25in;mso-list:l2 level1 lfo1;
  tab-stops:list 1.0in'><![if !supportLists]><span style='font-size:10.5pt;
  font-family:Symbol;mso-fareast-font-family:Symbol;mso-bidi-font-family:Symbol;
  color:#666699'><span style='mso-list:Ignore'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;
  </span></span></span><![endif]><span style='font-size:10.5pt;font-family:
  Arial;color:#666699'>Runs every 10ms<o:p></o:p></span></p>
  <p class=MsoNormal style='margin-top:0in;margin-right:-6.85pt;margin-bottom:
  0in;margin-left:1.0in;margin-bottom:.0001pt;text-indent:-.25in;mso-list:l2 level1 lfo1;
  tab-stops:list 1.0in'><![if !supportLists]><span style='font-size:10.5pt;
  font-family:Symbol;mso-fareast-font-family:Symbol;mso-bidi-font-family:Symbol;
  color:#666699'><span style='mso-list:Ignore'><span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;
  </span></span></span><![endif]><span style='font-size:10.5pt;font-family:
  Arial;color:#666699'>Determines mode (Program or Train)<o:p></o:p></span></p>
  <ul style='margin-top:0in' type=disc>
   <ul style='margin-top:0in' type=circle>
    <ul style='margin-top:0in' type=square>
     <li class=MsoNormal style='color:#666699;margin-right:-6.85pt;mso-list:
         l2 level3 lfo1;tab-stops:list 1.5in'><span style='font-size:10.5pt;
         font-family:Arial'>Program<o:p></o:p></span></li>
     <ul style='margin-top:0in' type=disc>
      <li class=MsoNormal style='color:#666699;margin-right:-6.85pt;mso-list:
          l2 level4 lfo1;tab-stops:list 2.0in'><span style='font-size:10.5pt;