Internet of things (IoT)

v  802.11(Wi-Fi )  based ( Master Device and Network     Processing Device )

OLED display 1.3”
LED indications: Power, Rx/Tx
Keys :Program, Reset, User key
Serial interface for Programming

Processor:

Xtensa®single-/dual-core 32-bit LX6 microprocessor

Radio      

2.4GHz  802.11 compatible
Upto 20.5 dBm of transmitting power, adjustable transmitting power
Receiver sensitivity –90 dBm
TX/RXcurrent 95~100 mA @ 0 dBm
3.3V operation

Battery: 3500mAh

Sensors

Integrated Temperature, Pressure and Humidity Sensor
PWM,Relay, DAC, ADC & two programmable DIO  

“Wireless Ginie”: GUI Application Software

WSN Control Commands to establish Network

Radio/transmission setting:  Power, LQI threshold, messagetransmission Retries
Experiment settings: Packet interval, Packet size, Acknowledge type, Experiment Duration,
Changedevice address and Role
Rese tnetwork
Ping
Network device list
Start experiment
Stop experiment
Read and process result

WSN Sensor Control Command

Set PWM
Configure DIO
Set/GetDIO val.
Read sensor and ADC values

Configurable Parameters

Radio Parameters
Power: 0 dBm to 19.5 dBm in steps of 11.5 dBm Specific to WiFi (LR) setupo  RadioChannel
LQIThreshold, connectivity range: 0-255
Numberof packet transfer retry: 1- 3

Experimental Parameters

Packet interval time: 0-999999 mS
Experiment duration: 1-9999 seconds
Datasize in packet: 0-99 Bytes
Packet type: Sequential, Random
ACK for packet: No ACK, Hardware ACK
Startof experiment: Start on reset, Start after command

Network Configuration Setting

Facility to emulate and define Network Configuration. The user can set the list ofdevices in the MD and NPD to allow or to block these devices during network formation.
This facility allows the user to create user defined network topology as well createmulti-hop network within the laboratory space.

WSN Network Parameters and Processing Display

Facility to display Device list with details like Device, Parent, Hops, DevLQI,
Facility to display Device Parameters like Device, packet Interval, duration, expected Data packets, packet size, Retry, Ack Type, LQI Th.
Facilityto display processed Results like device, data/control transmitted packets,Communication Load %, Dev Efficiency %, Expected NW Efficiency%, NW Efficiency%

Wireless network Setup

Measurement of Distance and Signal Strength (LQI). Find relation between distance and LQI

To study LQI and packet delivery efficiency with No ACK, Hardware ACK and Soft ACK

To study LQI variations through different media (e.g. concrete wall of differentthickness, brick wall etc.)

Measurement of Packet Delivery Ratio.

Measurement of Routing overhead

Measurement of Bandwidth overheads with No ACK, Hardware ACK and Soft ACK.

To study Effect of packet payload on network throughput

To study Effect of packet transmission rate over network throughput

Measurement of Average Transmission Delay.

To study Effect of hops over network transmission delay  

Use of Network Nodes as IoT Sensor ( Temperature / Pressure / Humidity )

Use of Network Nodes as Actuator- Driving PWM Based LED , Relay

Use of Network Node for measuring Voltage using ADC.

Calculate communication load, Network efficiency, Device efficiency in different topologylike star, tree, linear Network.

IOT Cloud

Home security Alarm Interface with IoT cloud and IoT carrier

Inventory Control interface with IoT cloud and IoT carrier

Thermostat Control interface with IoT cloud and IoT carrier

Interfacing Sound Sensor with Sensor Base

Interfacing of Air  Pressure Sensor with Sensor Base

Interfacing of Temperature Sensor with Sensor Base

Interfacing of Accelerometer Sensor with Sensor Base