Rethinking Sensing Technology

Structural Health Monitoring

Structural Health Monitoring (SHM) aims to give, at every moment during the life of a structure, a diagnosis

of the “state” of the constituent materials, of the different parts, and of the full assembly of these parts

constituting the structure as a whole. Structural Health Monitoring

combines a variety of sensing technologies with an embedded

measurement controller to capture, log, and analyze real-time data.

SHM systems are designed to reliably monitor and test the health and

performance of structures such as the

following:

Bridges and dams

Buildings and stadiums

Vessels and platforms

Airframes

Wind turbines

The recent developments in sensor

technology, especially when wireless

technology is considered, have

opened up new gates in terms of

health monitoring and preemptive

fault detection. BeanAir®’s wireless sensor technology offers great

reliability, versatility, maintainability and easy to deploy technology.

What is Structural Health Monitoring about?

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Structural Health Monitoring

Structural Health Monitoring on bridge

During its long service life a bridge would be subject to aging processes, harsh environmental conditions and excessive loads, leading to deterioration. Consequences of impaired physical condition can be as severe as the collapse of the structure, causing great financial loss or even casualties, but even major protective maintenance and upgrading works or replacement of the bridge are expensive and troublesome. Thus, it is important to have updated information on structural condition and performance of bridges in order to early detect any worrying signs of decline and undertake protective countermeasures. BeanAir® provides a Wireless Sensor Network solution suitable for bridge monitoring enabling Engineering practices to monitor assets remotely without the need for costly site visits. It has also the advantage of daily data, whereas traditionally this data was collected weekly or monthly, using physical site visits. Needless to say it is far more accurate than any visual inspection.

Vibration monitoring

The BeanDevice® AX-3D is 3-axis wireless

accelerometer for vibration measurement. This

device comes with two measurement range : ±2g

and ±10g and provides a maximum sampling rate of

3 KHz;

Tilt monitoring

The BeanDevice® HI-INC is a 1 or 2-axis

wireless inclinometer for tilt monitoring.

This device comes with two measurement

range : ±15° and 30° and provides an

accuracy of ±0.5° .

Click here to see the Video of the BeanDevice® AX-3D

Click here to see the video of the BeanDevice® HI-INC

For further information, read the Application Note: “Bridge Monitoring with Beanair products”

3 Rethinking Sensing Technology

Structural Health Monitoring

Product specifications are subject to change without notice. Contact Beanair for latest specifications.

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Tel.:+33.(0)1.83.62.16.38

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www.beanair.com

The most basic/minimal WSN consists in

deploying a local network that can be

monitored through a local PC server/

embedded PC. In this case the PC/Laptop is

either directly connected to the

BeanGateway® (in case of a mono-gateway

architecture) or to a switch that is

connected to multiple gateways through an

Ethernet link.

Out of the box Wireless Sensor Network with an Ethernet link

Wireless sensor network Topology

Wireless Sensor Network with 3G connexion

The 3G network is well suited for high rate

data transmission (Streaming & Streaming

Packet mode).

The BeanGateway® can be easily

connected to a 3G Router through an

Ethernet link. Measurement datas can

then be accessed from a remote location

for analyze.