Latest Wireless Sensor Network Design
Our latest wireless sensor network design facilitates high-rate, lossless monitoring of static and dynamic structural response of large civil infrastructure. The modular design incorporates:
- The Anaren A2530 OEM module with range extender (CC2530+CC2591 combination). This FCC-compliant 8051 system-on-chip solution offers 250kbps communication at the 2.4GHz carrier frequency with output power a 20dB output power for long range data transmission.
- Customizable data acquisition daughterboards. Our current sensor board incorporates a 4-channel 16-bit synchronous sampling delta-sigma converter. An on-board triaxial accelerometer provides for low-noise, low-power ambient vibration measurement while a connector to an auxiliary channel provides the ability to interface a variety of single-ended or differential analog channels (strain, force, pressure, temperature, etc).
- Two Power options: the sensor nodes operate over a 2.2-3.6 voltage range and can be either powered by a battery (for temporary deployments) or interfaced with a custom energy harvester circuit. The energy harvester circuit uses small form-factor solar cells to charge a pair of supercapacitor elements to replace the need for any battery.
Stacked design (with Energy Harvester power module) Wireless motherboard with sensor daughterboard
3-axis accelerometer board with auxiliary sensor channel Packaged Sensor with Rechargeable Battery
Network of 16 Triaxial Wireless Accelerometer Nodes
