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Safe and Sound
Blog Safe and Sound : Winter Survival Suit Post#7 (Let there be power)
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  • Author Author: dwinhold
  • Date Created: 16 Apr 2017 2:49 AM Date Created
  • Views 946 views
  • Likes 5 likes
  • Comments 3 comments
  • safe & sound
  • dwinhold
  • winter survival suit
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Safe and Sound : Winter Survival Suit Post#7 (Let there be power)

dwinhold
dwinhold
16 Apr 2017

Safe and Sound Post#7 (Let there be power)

 

Unfortunately I still haven't received my temperature sensors, so I am unable to fully assemble the suit. I have the carbon fiber sewn into the suit and ready to be tested. This past week I have wired the computer to the power switch and ran all the wires required to power the suit. I used alligator clips to connect the wires to the carbon fiber, this will also act as a quick connect/disconnect. It will also act as a safety if something should go wrong. I am also going to wire in an override, so if the computer should fail the suit will be useable. This is an absolute requirement, if the suit shuts down it could be the difference of life and death.

 

Below are pictures of the computer hooked up to the switch and powered:

 

image

 

image

 

 

In the picture below the temperature has a negative number, this is due to not being connected to the temperature sensors. It does show the switch has power on to all 6 connections trying to send power to the carbon fiber.

 

image

 

Thank you

 

Dale W

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Top Comments

  • DAB
    DAB over 8 years ago +1
    Nice update. What are you doing to prevent moisture shorting the power? DAB
  • DAB
    DAB over 8 years ago in reply to dwinhold

    You have two issues.

    One is the safety of the wearer, so that one needs you to implement a GFI shut off as soon as any type of short is detected.

     

    The other issue is protecting the hardware from a potential short condition, which is also a GFI type detection.

     

    I am not an expert, but I think you can set up current limiting circuits with an autoshut off option.

     

    Keep in mind, these circuits need to be very fast.

     

    DAB

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  • dwinhold
    dwinhold over 8 years ago in reply to DAB

    Hi DAB,

     

    Thank you for the comment and the Question!!

     

    To prevent moisture I am making an enclosure for the electronics that will also hold silica beads. Silica beads absorb a lot of moisture and should protect the electronics against shorting. If there are other ideas to consider I would really appreciate any help offered!!

     

    Dale W

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  • DAB
    DAB over 8 years ago

    Nice update.

     

    What are you doing to prevent moisture shorting the power?

     

    DAB

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