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From the course by University of California San Diego

Internet of Things Capstone V2: Build a Mobile Surveillance System

2 ratings

University of California San Diego

Internet of Things Capstone V2: Build a Mobile Surveillance System

2 ratings

Course 6 of 6 in the Specialization Internet of Things

In the Capstone project for the Internet of Things specialization, you will design and build your own system that uses at least 2 sensors, at least 1 communication protocol and at least 1 actuator. You will have a chance to revisit and apply what you have learned in our courses to achieve a robust, practical and/or fun-filled project. We absolutely encourage you to design whatever you can think up! This is your chance to be creative or to explore an idea that you have had. But if you don’t have your own idea, we provide the description of a surveillance system, for you to build. We will participate in the Capstone with you by building a surveillance system that features an off-grid solar powered workstation that will serve as a hub to multiple surveillance sensors. You will be able to demonstrate the knowledge and skills you have gained in this course through delivery of industry-appropriate documents such as System Design documents and Unit Test reports. Additionally, you will be asked to describe and show case your project as a short video presentation – appropriate for demonstrating your knowledge and technical communication skills. Learning Goals: After completing this Capstone, you will be able to: 1. Design systems using mobile platforms. You will gain experience in documenting and presenting designs. 2. Develop systems that interface multiple sensors and actuators to the DragonBoard™ 410c system and develop the necessary software to create a fully functional system. 3. Specify unit tests and system tests, run tests and prepare Test Reports as are commonly done by those working in this industry. 4. Gain experience (and feedback!) in making technical presentations.

From the lesson

Capstone, Part 2 - Getting set up

In this module you will get to see everything! All of the components we purchased for our project as well as some alternative that might help you cut the price or increase the power of your own system. Once we look at everything we will be using to build our system, we will quickly put it together and test it outside in the sun.

Introduction to Part 21:46

What's in the box?6:19

Back in the box!12:25

Outdoor test of system8:01

Wrapping up the capstone2:22

Meet the Instructors

Ganz Chockalingam
Principal Engineer
Qualcomm Institute of Calit2, UC, San Diego
Harinath Garudadri
Associate Research Scientist
Qualcomm Institute of Calit2, UC, San Diego

We are ready now to kind of look and see what we have packaged up in here,

as I said in the introduction, we are going to take a look at some of the tools.

Most of the tools that I use for building this, as well as all of the components

that went in to making this happen, so this is our self-sustainable, solar

self-sustainable DragonBoard 410c work station and potential surveillance system.

So inside this box,

as you can see, at least right here, we have a little flap that comes out.

This is for the wheels, right.

But we expand our station here.

And you can see we have our DragonBoard 410c.

Which is kind of the brain of the system.

We have our power supply for it which we'll be using later.

We have some cool little sensors and you went over that in course three.

This is our actuator, I'm sorry, the stepper motor that we used.

You know in case you wanted to do some VOIP, we have our head set there and

then, you know maybe a little, Live webcam that you might want to use [SOUND] and

then we have [SOUND] of course the monitor here which you will definitely

need if you're going to be doing any sort of programming outside on the desktop.

Or if you're running Android or anything like that you don't want to use ADB.

I have a full size, almost full size keyboard, you know, for the programming.

And then I have a little miniature one here too, so

maybe you want to Make your system a little more compact.

Those are both bluetooth.

And a really cool sensor kit from Grove Sensors here.

Inside here we have a bunch of I2C sensors.

Here's light sensors, motion sensors,

[NOISE] pressure sensors, little LCD screen.

Underneath here, we have the sensor board.

This is new to the 96 boards at our website.

You can check all this out and

I will be providing links at the bottom of the videos here.

We'll put this over here.

[COUGH] And the power supply of course for the screen,

so this is just the beginning, this is the stuff we're going to use.

Right now, I want to kind of talk about a little more of the tools here.

So, I use this just a little all purpose screw driver,

this helped me with putting some of the stuff together.

Crimper, wire cutters, some bungees.

Let me see what we got here.

These bungees are going to hold down the battery and I'll explain a little bit more

about why we chose these bungees instead of building a whole battery casing.

Have a little volt meter.

You know, I noticed that the solar panels we bought,

they didn't have a positive or a negative side to the connectors.

So I was like how am I going to find out, you know,

how to plug it into the charge controller?

So you just use your volt meter there, and you'll find out where the positive and

the negative sides are.

And The solar panels.

Let's move this over here now.

These solar panels right here.

We have two solar panels, right.

And these are as we talked about in part one, the ten watts, 17.9 volts.

22.4 open current, open circuit volts.

And then short circuit amps .61.

So we're going to kind of decide how we want to set those up, hooking them up to

the wire of the box after, another bungee here, after we hook everything up.

And then the battery.

So this is kind of a heavy duty battery.

We chose 18 amp hours here.

You can again make your system as powerful as you want.

Our system is actually capable of faking multiple of these batteries and

when you see the inside of this box,

you're going to see how much extra space we actually have.

So you want your system to be able to, for emergency cases,

you're out in the wild for two, three days, and say it's raining, or you're

covered by a bunch of trees in the forest and you're not getting much sunlight.

Well, you might want to have more batteries with you.

This of course adds to the weight, which in turn, there's always a compromise.

So let me see here.

One last thing, this was just kind of a cool thing that we pick up.

So we have this kind of big old clunky monitor.

And when we show you the inside of this box,

you're going to kind of see why we picked this.

Because this is a really cool little monitor, five inch monitor.

I would encourage anyone out there that want to buy this monitor

It's from Waveshare, and I would encourage anyone out there who wants to buy this

monitor to get on there, try to build some STL file.

Let's get a hard shell, 3D printed case going for this because it's really cool.

And it would be really nice to get a nice 3D printed case for this monitor.

Something that we can mount inside the solar powered system here.

Just going to kind of place this right here as well.

So, one last thing.

This is a lot of stuff that we pulled out of the box but

we're going to kind of take a look around here.

And take a look at the last two components of this box

which are the Inverter here, and this is a 450 watt inverter.

I know in part one I talked about a 350 watt inverter.

We upped it by 100 watts only because this inverter

was a little more simple with the two sockets here that it provides.

The other one only had a USB socket.

Turns out our charge controller up here, actually had it's own USB

sockets so we didn't have to, we didn't really need to install any extra stuff for

that, you can see we have our panels,

our inverter, our battery coming in here we'll explain all of these later, but

there's ample space inside here and we're going to start building it so

you can see it all come together in just a minute in the next video.

So kind of take a look at all this.

Stuff here on the table.

And we're going to fit all of this back in, minus the tools, but

we're going to fit all this back inside of the case.

And make it a nice comfortable workstation for

you to build with your DragonBoard 410c.

See you in the next videos.

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