This research aimed at evaluation of the feasibility of embedding self-contained wireless sensing devices into pavements to collect information about condition. All the elementary components to build such devices are nowadays commercially available.
The work determined most of the “generic” requirements for wireless devices to be embedded into pavements for measurement, and more specific requirements for a small number of typical from “simple” (e.g., temperature) to complex (e.g., magnetic field created by passing vehicles). The findings have been obtained by:
- Identification of the most appropriate components (i.e., sensors, micro processors, low-power radios, energy scavenging and storage systems) for the required applications
- Procurement of example components and assembling example wireless devices (comprising sensor, onboard power storage and scavenging device, wireless transmitter/receiver)
- Carry out experiments with the assembled devices , testing various scavenging techniques, estimating the theoretical power consumption for various applications, evaluation of the use of several unusual energy storage technologies (taking advantage of the characteristics of pavements)), assessment of the communication range and signal strength of the devices
- Derivation of possible applications
The project has been limited to experiments in a laboratory setting. It is suggested that in future projects could be aimed at assembling a proper self-contained device, which is to be ruggedized for trials in pavement.
Parts of the findings of this project are likely to be incorporated in the INROADS ( http://www.fehrl.org/index.php?m=155&mode=more&id=540 ) project.