Description
ShakeNet is a portable wireless sensor network for instrumenting large civil structures such as buildings and bridges. It will consist of 25 sensor nodes each equipped with a 24-bit analog-to-digital conversion (ADC) board supporting triaxial MEMS accelerometers suitable for vibration sensing, an imote2 CPU board for wireless communication, and battery. The system comes preloaded with sensing software as well as deployment tools that will enable civil engineers to rapidly deploy the network. In addition to the sensors, the system contains 5 to 10 master-tier nodes that provide increased communications capacity.
What makes ShakeNet unique among wireless vibration networks is its software subsystem. The software is built upon Tenet, a programmable wireless sensing software architecture designed for tiered sensor networks. ShakeNet software is being developed at USC's Embedded Networks Laboratory in the Dept. of Computer Sciences. ShakeNet will be field tested in a variety of structures including steel moment-frame and base-isolated reinforced concrete buildings, a large earth-and-rock-fill dam, and a steel truss bridge that contains a water distribution pipe. An earlier prototype was successfully tested on the 1500-ft-span, suspension cable Vincent Thomas Bridge in the Los Angeles harbor.
People
Monica Kohler (Center for Embedded Networked Sensing, UCLA)
Ramesh Govindan (Dept. of Computer Sciences, USC)
Nilesh Mishra (Dept. of Computer Sciences, USC)
Shuai Hao (Dept. of Computer Sciences, USC)
Bob Nigbor (Dept. of Civil and Environmental Engineering, UCLA)
Laboratory Testing
Lab testing is being conducted at the USC Embedded Networks Lab in the Dept. of Computer Sciences and at the Caltech Dynamics Lab in the Dept. of Civil Engineering. Tests include
Publications, posters, and abstracts
Kohler, M., S. Hao, N. Mishra, R. Govindan, and R. Nigbor, ShakeNet: A tiered wireless accelerometer network for rapid deployment in civil structures, CENS Annual Research Review, Oct. 28, 2009. (pdf)
