By Meruva Venkat Dept. of Computer Science Southern University and A & M College.

Wireless Sensor Networks

Senses of Human Body

The operation of all senses involves

the reception of stimuli

by sense organs,

Each of which is sensitive to a

particular kind of stimulus.

Senses of Human Body contd.. I.  The eyes are sensitive to light

II. Various sense organs of the skin and other tissues are sensitive to touch, pain, temperature

III.  The ears are to sense sound

IV. The taste buds are to taste.

V.  The Nose is to odor

A device that detects or measures a physical property and records, indicates, or otherwise responds to it.

What is a sensor ?

A Light Sensor can use to detect the  light level - i.e. how bright/dark it is.

There are a range of different types of light sensors, including ‘Photo resistors', 'Photodiodes', and

'Phototransistors'.

Light sensors

Air temperature is a measure of how hot or cold the air is.

It is the most commonly measured weather parameter

Air Temperature sensors

Humidity Sensor

A humidity sensor (or hygrometer) senses, measures and reports the relative humidity in the air.

It therefore measures both moisture and air temperature

Humidity sensors

A soil moisture sensor measures the quantity

of water contained in a material, such

as soil on a volumetric or gravimetric basis

Soil Moisture sensors

Leaf Sensor

A leaf sensor is a photometric device (measurement of plant physiological processes) that measures water

loss or the water deficit stress (WDS) in plants by real-time monitoring the moisture level in plant leaves.

Leaf sensors

A temperature sensor is a device, typically, a thermocouple or RTD, that provides for

 temperature measurement through an electrical signal

Temperature Sensors

A smoke detector is a device that

senses smoke, typically as an

indicator of fire. 

Smoke Detector Sensors

Door sensors (sometimes known as photoelectric or infrared

beam, electric safety door edges, door detector, electric

proximity edges, or electric doorman) is an elevator device that

detects a passenger or an object on the doorway which prevents

the doors from closing 

Automatic Door Sensors

Proximity / Gesture sensors

It recognizes the user’s hand movements using infrared rays

The IRIS is a 2.4 GHz Mote module used for enabling low-power, wireless sensor network

Designed Specifically for Deeply Embedded Sensor

Networks

It measures Light

Temperature

RH, Barometric Pressure

Acceleration

Acoustic

Magnetic and

MEMSIC Sensor Boards

IRIS Sensors

A Wireless sensor network (WSN) is a wireless network consisting of spatially distributed autonomous devices using sensors to monitor physical or environmental conditions.

Wireless Sensor Network

Transport and Logistics

Industrial Applications

Precision agriculture and animal tracking

Environment monitoring

Urban tracking and civil structure monitoring

Entertainment

Applications of

WSN Applications of

WSN

Security and surveillance

Health care and Smart girds

Smart Building

The Internet of Things (IoT)

refers to the ever-growing network of

physical objects that feature an IP

address for internet connectivity, and

the communication that occurs

between these objects and other

Internet-enabled devices and systems

Future Of WSN In IOT Sensor

WSN In Connection With IOT

The protection of information

against unauthorized disclosure ,

transfer , modification or

destruction, weather accidental or

intentional

WSN In Cyber Security

WSN In Cyber Security Contd…