Wireless Sensor Network Ethernet Gateway

NI-WSN software provides easy

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network configuration and

data extraction

2.4 GHz, IEEE 802.15.4 radio to

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communicate with measurement nodes

10/100 Mbits/s Ethernet port for

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flexible connectivity to Windows PCs

or LabVIEW Real-Time programmable

automation controllers (PACs)

Up to 300 m outdoor range with line

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of sight

Supports up to 36 measurement nodes

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9 to 30 VDC power input

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Industrial ratings:

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-30 to 70 ºC operating temperature

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50 g shock, 5 g vibration

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Panel and DIN-rail mounting

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options available

Operating Systems

Windows Vista/XP/2000

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LabVIEW Real-Time

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Software Support

LabVIEW

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Driver and Configuration

Software (included)

NI-WSN software

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Measurement & Automation Explorer

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configuration utility

Overview

The NI WSN-9791 Ethernet gateway coordinates communication between

distributed NI WSN-32xx measurement nodes and a host controller in your NI

wireless sensor network (WSN). The gateway uses a 2.4 GHz, IEEE 802.15.4

radio to gather measurement data from the sensor network and a 10/100 Mbits/s

Ethernet port to provide flexible connectivity to a Windows PC or NI LabVIEW

Real-Time PAC, as seen in Figure 1.

Figure 1. NI WSN systems provide flexible connectivity to Windows or LabVIEW Real-Time

host controllers.

With this flexibility, you can create simple, stand-alone wireless monitoring

networks or completely integrated wired and wireless measurement solutions

that feature access to the full breadth of NI hardware and software platforms.

LabVIEW integration with NI WSNs delivers a common development

environment for your applications as well as rapid application development,

easy network configuration, remote data access, and the ability to program and

customize measurement node behavior.

The 9 to 30 VDC externally powered gateway offers -30 to 70 °C operating

temperatures, 50 g shock ratings, and a compact, 2U form factor. Up to

36 measurement nodes can communicate with a single gateway, and you can

configure the Ethernet settings of the gateway for DHCP, static, and link-local

IP address configurations.

Wireless Networking

The NI WSN system is built on a low-power, reliable IEEE 802.15.4 network.

The Ethernet gateway coordinates the wireless network, performing functions

such as device authentication, message buffering, and network topology

administration.

The gateway, routers, and end nodes work together to form a mesh network.

Measurement nodes can operate as routers or end nodes, providing the flexibility

to extend the range of your sensor network. When nodes are configured as

routers, they can repeat messages from end nodes and extend network range

while acquiring measurement data.