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NI Wireless Sensor Networks

Architectures, Products, Features,

Specifications

Davide Palandella

National Instruments Italy

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National Instruments Confidential 2

Real World Customers

Environmental

Monitoring

Structural Health

Monitoring

Industrial

Monitoring

Resource & Utility

Monitoring

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WSN Applications

Long-Term Data Logging 1-3 year battery power

Sample rates around 1 S/s

Industrial ratings

Remote Monitoring

Range up to 300m

External power not necessary

Outdoor enclosures available

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WSN 1.0 WSN (Future)

Wireless Application Areas

Environmental

Monitoring

Resource

MonitoringIndustrial

Measurements

Process

Monitoring

Air/

Climate

Water/

SoilPower

Monitoring

Solar

Monitoring

Wind Farm

Monitoring

Machine

Condition

Monitoring

Indoor

MonitoringStructural

Health

Monitoring

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3rd PartyNI WSN

NI Wireless Platform

Wireless Measurements

Wireless DAQ

Wireless Test

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Wireless Measurements

USB Ethernet

Wireless DAQ

Wireless (WSN) I/O

Nodes

PACs and Wireless APs

DataAcquisition

EmbeddedMeasurements

NI-DAQmx Waveform

Line Power

Variables Single point

Battery powered

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Low-Power. Reliable. NI Wireless Sensor Networks

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System Architecture

DatabaseServers

LabVIEWReal-Time

LabVIEW forWindows

WSN

Measurement

Nodes

Wireless EnabledSmart Objects

WorldwideWeb

LabVIEW

WSNGateway

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Configuring NI WSN Hardware and Software

WSN Ethernet Gateway

WSN MeasurementNodes

Host Controller

Voltage

Temperature

Ethernet

External Power

Network

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NI-WSN Software

LabVIEW Project Integration Auto detection of nodes

Drag-and-drop Variables

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NI WSN-9791Wireless Sensor Network Ethernet Gateway

Features

2.4 GHz, IEEE 802.15.4 radio

10/100 Ethernet

Outdoor range up to 300 m

9-30 VDC power input

Specifications

2U Compact Form Factor

Panel or DIN rail mounting

Industrial ratings Operating temperature -30 to 70 C

50 grms shock 5 g vibration

Status LEDs

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NI WSN-3202 and NI WSN-3212Wireless Sensor Network Measurement Nodes

Common Features 2.4 GHz IEEE 802.15.4 radio

Outdoor range up to 300 m

Greater than 3 year battery life with 4 AA batteries

Optional 9-30 VDC power input

Configurable as a mesh router

Four bi-directional DIO lines

Industrial ratings Operating temperature -40 to 70 C

50 grms shock 5 g vibration

Node AI DIO Sample

Interval

Sample

Rate

Resolution

(bits)

Features

NI WSN-3202

Analog Input Node

4 4 1 second 60

samples/min

16 Sensor power: 20 mA @ 12V

Input Ranges: 10 V, 5 V, 2

V, 0.5 V

NI WSN-3212

Thermocouple Input Node

4 4 2 seconds 30

samples/min

24 Supports types J, K, R, S, T,

N, B, E

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NI WSN Power Consumption

Mode

Internal Batteries,(3.6 7.5 V)

End Node

External Power (9-30 VDC)

@ Sample IntervalEnd Node Router

NI WSN-3202

Analog Input Node0.5 mW at 6 V 16 mW at 24 V 300 mW at 24 V 60 second

sample intervalNI WSN-3202

Analog Input Node13.3 mW at 6 V 33 mW at 24 V 300 mW at 24 V 1 second sample

interval

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NI WSN Accessories and Starter Kit

Outdoor Enclosure IP Rating Pending

I/O Glands for wire feedthrough

External antenna

NI WSN Starter Kit Ethernet Gateway

2 Programmable Nodes

Sensors and power accessories

LabVIEW Eval. Software

Getting Started GuideNI WSN Starter Kit

NI WSN-3291

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Benefits of Programming WSN

Measurement Nodes

Extend battery life Transmit meaningful data (threshold, averaging, dead-band)

Adapt sample and transmission rates to operating conditions

Perform custom analysis Convert raw data into meaningful information

Interface to sensors

Reduce response time with embedded

decision making

Control actuators without host interaction

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LabVIEW Wireless Sensor Network (WSN)

Module Pioneer

Device functionality

Direct access to I/O channels

Control over data transmission

Programmatic node configuration

LabVIEW Support

Basic structures

Inline C node

Fixed-point and floating-point

Subset of analysis functions

String-based printf debugging

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LabVIEW WSN Functionality

Capabilities Digital change detection

Programmatic node configuration (sample rate,

noise rejection, thermocouple type, etc.)

Local alarming and User LED

32KB user memory for logging

Supported LabVIEW Features While loop, for loop, case structure, etc.)

Inline C node Fixed-point math

Trigonometric, Exponential, Hyperbolic functionpalettes

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LabVIEW WSN Pioneer

Add intelligence with graphical programming

Customize node behavior

Download code updates over the air

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~200 lines of code

1) Set a rate of 1Hz

2) Toggle an LED

3) Acquire and send a sample

4) Update sample rate from host

Graphical or Text-based

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WSN Nodes and Programmable Specs

Node AI

Channels

Sample Interval DIO DI Speed Resolution

(bits)

Power Source

NI WSN-3202

Analog Input Node

4 1 sec / sample

(60 S/min.)

4 1 sec /

sample

16 Internal: sensor power 20

mA @ 12V

External: DO 1 A

NI WSN-3212

Thermocouple Input

Node

4 2 sec / sample

( 30 S/min)

4 2 sec /

sample

24 Internal: X

External: DO 500 mA

Node AI Channels Sample Rates DIO DIO Speed Resolution

(bits)

Power Source

Programmable

NI WSN-3202

Analog Input Node

4 ~60 180

samples/min.

4 DI: 5 S/s

DO: TBD

16 Internal: sensor power 20

mA @ 12V

External: DO 1 A

Programmable

NI WSN-3212

Thermocouple Input

Node

4 ~ 48 60

samples/min.

4 DI: 5 S/s

DO: TBD

24 Internal: X

External: DO 500 mA

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Wireless Terminology

IEEE 802.11, WiFi

Access Point

Repeater

Client

IEEE 802.15.4, NI-WSN

Gateway

Router

End Node

R1

N

G

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NI-WSN, Based IEEE 802.15.4

Frequency: 2.4 GHz

RF Channels: 14 Channels (11-24)

Data Rate: 250 kbits/s Corresponds to 30-60 samples per minute per

channel on WSN Nodes

Provides: Mesh Routing - Ability for network to detect alternative paths

Sleep Mode Ability end node conserve power and maintainreliable communication

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IEEE 802.15.4/ZigBee

Popular for WSN devices IEEE 802.15.4 defines:

868, 915 MHz, and 2.4 GHz radios

Up to 250 kb/s

Low-power communication

ZigBee adds: Device coordination

Network topologies

Interoperability with other wirelessproducts

NI-WSN sits on top of ZigBeelayers Provides authentication, joining,

A/D, DIO

Physical Layer

868 MHz/915 MHz/2.4 GHz

Medium-Access Control Layer

Network Layer

Routing, Network Topologies, and Security

Application Layer

IEEE 802.15.4 ZigBee

Application Framework

User Profiles

ZigBee Device Objects

Device coordination: gateway, router, or

end device

Application Support

Data service and management

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Network Topologies

Star Mesh

Reliability

Latency

Cluster/Tree

Distance

Complexity

Gateway

Router Node

End Node