Wireless monitoring of highways

Richard Bennett; Barrie Hayes-Gill; John A. Crowe; Robert Armitage; Dale Rodgers; Adrian Hendroff

doi:10.1117/12.348667

18 May 1999 Wireless monitoring of highways

Richard Bennett, Barrie Hayes-Gill, John A. Crowe, Robert Armitage, Dale Rodgers, Adrian Hendroff

Proceedings Volume 3671, Smart Structures and Materials 1999: Smart Systems for Bridges, Structures, and Highways; (1999) https://doi.org/10.1117/12.348667
Event: 1999 Symposium on Smart Structures and Materials, 1999, Newport Beach, CA, United States

Abstract

Electronic hardware has been developed to telemetrically transmit temperature and strain measurements from within a public highway in the UK. These measurements provide an important health check for monitoring fatigue damage in pavements. Previous attempts at measuring strain and temperature have required lengths of cable to be installed in the highway. The installation of these cables is both expensive and damaging to the pavement and provides potentially unreliable electrical connections. The new systems consist of a retrofitted instrumented asphalt core which is bonded into the pavement structure. The core contains all the electronics necessary to record two temperatures and two strains. An analogue front end provides signal conditioning which is digitized and passed to microcontroller for endcoding. From there the data is transmitted via a low power radio link to a receiver and data logger positioned by the side of the road. The system has an in-situ operating life of 6 months on AA alkaline batteries. Results are presented of power management and fault tolerant radio protocol techniques, long term temperature variations, dynamic strain measurements within the highway, and RF transmission capabilities through a layer of asphalt.

Citation Download Citation

Richard Bennett, Barrie Hayes-Gill, John A. Crowe, Robert Armitage, Dale Rodgers, and Adrian Hendroff "Wireless monitoring of highways", Proc. SPIE 3671, Smart Structures and Materials 1999: Smart Systems for Bridges, Structures, and Highways, (18 May 1999); https://doi.org/10.1117/12.348667

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available