Hello everyone. Welcome to the section number six where
we are going to talk about the Laura and the Laura Web.
This is video number 6.1 and we're going to talk about
what is the difference between Laura and the Lauren its
specification how it works. So guys,
let's get started with that.
so firstly
We need to understand. What is Laura and the Laura when many
people think that both are the same stuff. No, Laura is
actually modulation technique for wireless. And the Laura
van is an application layer protocol for iot devices,
which uses Laura modulation to
send messages from one node to Gateway and
lower van is a low power and long
range communication technique. That's why it is
very famous among iot devices and
specially it is used to monitor the remote.
Nord as remote nodes
are battery powered as compared to the electric power
and the Laura van is a battery
optimized and it comes Zoom very small amount of
power to send and receive the
messages and the Laura went specification is developed by and
maintained by Laura Alliance.
So now is the question. Is that how it works?
So here is the scenario.
This is our node. For example, you can assume that it's a smart
agriculture node, which is sensing the soil moisture soil temperature
and deployed in the field. Okay,
the node is fetching the
data and sending through the Lora when
to the Gateway here is the gateway
gateway is connected to the
internet and on the backbone
And we have our Laura van stack. We can
say that the things Network and the helium Network. It
depends upon your requirement which network you
are using behind your gateway. So Gateway sending
data to the Laura van backend where
Network server application server joint
server and there are different servers which are
synchronized which either we with each other to
provide the security authentication and access to
the backend. So this is the scenario that devices handing
data in a by using Laura modulation
to the Gateway and Gateway is connected to the internet why
WI-Fi 3G GSM our
The white ethernet and then
everything is on Laurens stack.
And from there. You can send the data to the AWS iot
cloud or to
Microsoft Azure Cloud any Cloud you
can use that. I hope you guys understand that basic scenario.
So now there are three type of and devices you
can say that categories. There is a device is only one,
but we have a three different types of mod in
the class A.
It consume lowest battery power because
it's a bi-directional and device but in a class B
by directional and device with deterministic downlink latency.
And in the class C. It's a low latency
bi-directional and device if you
want a real-time monitoring, then you need
to use that class C, by the way.
Our researchers and professional prefer to use more day
because it consume a very less power because it
only has the data you can see that practically sets the
data to the Gateway, but in a class C it always
listen to the Gateway and sense the
data after a few times which consume a
lot of battery. So in many cases
Class A is good you can say that mod is better
and in many cases classic in
if we talk about the smart Agriculture and smart agriculture.
We need to take the readings after a six hours or 12
hours. Then I think Class A is a code that after
a specific period node will automatically send
the data the Gateway, but if we are doing a
remote Warehouse monitoring where is a critical product?
I just like you can say that Madison's or some other
stuff is available in the warehouse. Then we can
use a Class C because instantly anytime a warehouse
manager can access the data
offer rate of temperature and humidity. So classy
is good in that case.
Well now we need to talk about the network topologies right
now. Laura van
is using Gateway client, which is start apology and
Robin also work in P2P scenarios
and the new feature has been introduced which
is really by The Rock Wireless, but
there's a specific device which
is relaying the gateway to another Gateway
mean it's extending the range but
still there are research areas
where you guys can do a research to set
up a mass network and some other network topology which is
which are available in Bluetooth Wi-Fi, but
not available in Laura van.
So if we talk about the specification as the
application layer.
And this is the Laura Mac Class A Class B Class C.
Now. You see here. This is the Baseline. This
is the beacon and this is the continuous. That's why
it consume a lot of
battery in the
Mod C. And here is the Laura modulation
and these are the ism bands where
the frequency has been used. According to
the reader. For example in a job. We use 868 in
EU 433 is also available in US 915
and in Australia for 30 and
blah blah. There are different frequencies and one
drawback is that that frequencies are
not fixed in every region, every region have
different frequency series for the Laura and
devices.
Now we need to talk about the baud rate. We have 0.3
kbps to 50 kbp as
we cannot use lower when to send a
bigger data frequency depends upon
the region.
I already talk in USA. We have a different frequency in
Australia. We have a different in China in Pakistan
in India. Even every country have
a different frequency according to their regulatory laws.
And for the network session key. It's a 128 bit
and the application session key 128 bit
later. We will discuss in detail when we're going
to set up our device node to connect
with the Gateway. So these Network session key
and application session Keys required for authentication and connection.
Now it's time to talk about the applications. We have a
wide variety of application due to low power
and the long range communication many companies.
Says in documentation that they are providing 10 kilometer 20
kilometer and 30 kilometer range for their nodes and gateways
but depending upon the area some areas
are.
Heavy with the buildings and some areas are just
normal with the buildings. So
actually it depends on the area not on
the specification. So for example,
if you are running a
Business our delivery business and you
want to track your writers within our
20 to 30 kilometer areas. Then doravan is a good
to use that and many organizations are using that air for
smart building and smart cities. Laura van
is the best our communication technology which
cuts down the expense as well as power
mechanisms. For example, if you
are deploying the smart weather stations to monitor the
city environment or you are
going to deploy the environmental monitoring solution. Then Laura van
is a good to go with the communication because it consume
a small battery. You can
also use to control the signals your beans are
one of a startup from
I forget the country. I think
from the Belgium. Yeah, these guys are from Pakistan
and they developed solution where
they are monitoring the bins all across
the city in the Belgium by using
the Laura van technology. Many guys are creating a
very awesome solutions by using Laura
van and in the small Health Care, it is
good to go because in ambulance
Works within 10 to
20 kilometer region and the Lauren is
a good to go to send the data to the hospital space station
and in smart agriculture. Yes, it's awesome to
monitor all long Fields, even we can
monitor the cattle Farms by
this technology and in industrial iot. Yeah, because
many bigger units are
spreaded in many kilometers, then it
is a good to use the Lord of
and Technology.
Because it uses a less power and the long
range communication. So all the scenarios are
awesome and I will say here early Runners
always win the race if you want to succeed in
the field of iot then start
using Laura van because if
you get experience, you will make spot
in the market.
So guys next we are going to work on Smart agriculture
where we're going to use Laura van P2P
communication technique to demonstrate how
we can send directly data from one node to
another node without the usage of Gateway. So
guys see you in our next video. Have a good day. Bye.