After taking a picture with him (during which you should get close!), ask him if he has a MySpace or Facebook profile, so that you can link with him. Who says you can't meet the love of your life at a dog park, or a toy store? The good old bar scene isn't for everybody. Don't make her angry at all by trying, trying, and trying over again in one day. And if someone asks you if they can give the girl the note--and you feel comfortable with that--let them do it. It's really important that people are critical about what they put in it. . This can create a relaxing and peaceful environment. Go to the beach with him. Monopoly or scrabble is a great icebreaker. Do not cry. If you want more dates, it's probable that this person will need to learn to trust that you're interested in him or her as an individual rather than in his or her bank account. If she's uncomfortable or needs some space, change the subject or leave her alone. Take note of your partner's sensitivity and emotions. Depends how your relationship is with the person you're hugging, it's always nice to have both of your heads rested on the other person's shoulder. While doing this move her hair to one side and kiss the back of her neck. Where you want to go to school. Add mascara and some lip gloss. Buying a Long distance relationship gift can be a daunting prospect but these tips will help... Can you help it best dating sites flourish? Never frown, you never know who might be noticing your smile. Here are some good compliments by way of example. Look online for networking events in your city that involve like-minded people, make yourself available and approachable, and be open to asking someone out. Plus nothing is worse than starting a relationship with lies. If he/she cares about you truly, he/she will apologize for his nagging and put an end to it. Now we've gotten rid of the hard part. Who makes you most comfortable? Eventually they may feel the same way and if they don't, again just move on. If you really like her, go out there and get what you've worked for.

SeaDevil AUV

SeaDevil is Autonomous Underwater Vehicle (AUV) designed to perform various tasks using custom electronic circuits, array of sensors, on board computer and powerful battery cells. Highly hydrodinamic body of AUV is composed mainly of carbon kevlar composite with steel reinforced ribs which enables diveing to depths up to 150m while maintaining low mass and high maneuverability. AUV is powered by four high capacity (90Ah) LiFeYPO4 battery cells which can provide high current output to power AUV propulsion system while ensuring long autonomy. AUV is expected to meet the following requirements:

  • Speed of lateral movement of at least 0.5m/s
  • low mass of vehicle (35 kg)
  • working depth up to 150m
  • autonomy of 8 hours
  • dynamic positioning
  • high manoeuvrability (6 degrees of freedom)
  • high speed of data processing
  • modularity
  • simple maintaince

Such AUV demanded development of custom electronic modules which enables maneuvering of AUV, battery management and data acquisition from sensors. Crucial requirement in development of this system was modularity of whole system which is achieved by using standard modules. Each module has its own role in submarine system, and if necessary it can be easily replaced by other modules. Beside the need of developing hardware there is a need to develop a software for embedded systems and on board computer which will enable data analysis from sensors and control over the AUV. Hardware is composed of motherboard where several modules can be attached. Modules are separated by their function, so each module can perform specific task. For now there are four types of modules that can be attached to motherboard: Module for controlling electrical motors

  • >Controls two DC motors
  • Controls two digital servo motors
  • Measures current, voltage, power consumption and temperature
  • Performs autodiagnostics

Module for battery management

  • Charges LiFeYPo4 batteries
  • Implements battery management (cell balancing, over and under voltage protection)

Module for hydrophone monitoring

  • Location tracking using hydrophones and triangulation

Module for analog measurement

  • Precise measurement of analog signals (current, voltage, pressure)

Motherboard

  • Performs diagnostics of all attached modules
  • Communicates with on board computer and modules
  • Enables mechanical and electrical bonding of all modules with motherboard

Special care in designing printed circuit board (PCB) is devoted to heat dissipation and topology of conductor wires to avoid problems relating to overheating and electromagnetic interference which can lead to irregular operation of system. Motherboard contains circuitry to perform diagnostics on all modules which is able to disconnect power from faulty modules in order to preserve integrity of AUV. AUV propulsion system

  • Four azimuth thrusters for thrust vectoring
  • Two bow thrusters for pitch control
  • Four high torques DC motors (Speed 900) for azimuth trhuster
  • For RC servo motors (Futaba S3010) for azimuth thrusters
  • Two medium torque DC motors for bow thrusters

On board sensors

  • High precision pressure sensor
  • Several temperature sensors
  • Inertial Navigation System (INS)
  • Voltage sensors for each battery cell
  • Current sensors for each electrical motor and whole battery pack
  • Three hydrophones (TC4013)
  • Two industrial HD cameras (BlueFox)

show
 
close