Internet of Things

How does System Work?

The printing process in the factory of Polibol is done by printing machine units that prints color

on color to construct the last image. Each printing unit in the factory holds a mixture of colored

ink and solvents that keep the ink liquid and coil impregnated. The products then go through

a drying tunnel to eliminate the solvent, placing the dry pigment. Now it is very important to

control the drying temperature as the ink is still not completely dry. Printing is a very high-speed

process by covering more than 200 meters per minute. Plus, we should know that temperature

might also aect the elasticity of the materials during the manufacturing process. This might

cause the ink not to get properly applied. The same thing applies to the lamination process,

this process consists of pressing all together up three layers of plastic or aluminum material

to achieve the sum of properties important to each final product components such as sealing,

visual impact, impermeability, and strength. The dying material must be monitored between

each layer of adhesive and each layer of material.

Controlling the temperature might require high accuracy in the readings and high sam-

pling rate. Plus, maintaining the temperature is super important as the costs of printing and

laminating machines could be very high. Thus, ensuring the right temperature control not only

protects the machines but also reduces the maintenance costs.

The humidity sensors are also as humidity tends to aect the flexibility of some plastics. Plus,

humidity can also change the behavior of printing inks and damage the final quality of the image.

Light Sensors are required to ensure a constant luminosity. It is periodically calibrated for

color analysis since color might appear dierent on dierent lighting conditions.

Capturing the Volatile Organic Compound (VOC) with sensors is also very important in

the process of laminating and printing. Various kinds of solvents are utilized that volatize while

the drying process takes place. Environment rules also explain that evaporated VOCs from the

solvents be held destroyed or recycled in a very controlled manner. These VOCs can potentially

pollute the atmosphere. Thus, sensors measure the VOCs and ensure compliances.

Hardware for the Project

The hardware for this project is relatively simple; it consists of four dierent types of smart

sensors and an advanced multiprotocol internet gateway. The sensors used in this project are

able to monitor wide parameters.

• Smart agriculture: monitoring the temperature (x

2

)

• Smart environment: monitoring CO

2

and VOC

• Ambient control: monitoring temperature, humidity, and luminosity (light)

• Smart cities: monitored by microphone

Each smart node has been equipped with a bunch of sensors and electronics required to

control them. They are well formatted from the factory to adapt the special individual needs.

Each node might contain:

• Battery,

• A communication module 802.15.4, and

• 220 Volt adapters.

The smart sensor platform used in the factory supports an inbuilt battery which allows the

system to evaluate and send data even without being connected to the power supply. The attached

battery has a capacity of 6600 mah which makes it possible for the application autonomy for

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