To evaluate the animal welfare, many ranchers would like to know the pressure on the animals due to the holsters and ropes. In this paper, a wireless real-time pressure monitoring system was designed based on wireless sensor network. The system consists of several pressure sensor nodes and a sink to coordinate the whole network, collect data from pressure sensor nodes and send the data to PC. An ultra-thin pressure sensor was integrated in the smart moteplatform to form the pressure sensor node. TinyOS, an open-source operating system and nesC language, an extension to C were applied for programming. In the lab test, the result of sensor calibration shows it has a good linearity and the packet delivery rate test verify that the system could operate stably and reliably in a better acceptable link quality. For better presenting to users, an information monitoring interface was used based on MATLAB as a simple demonstration of the whole system.
[1]
Steve Warren,et al.
Wearable sensor system for wireless state-of-health determination in cattle
,
2003,
Proceedings of the 25th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (IEEE Cat. No.03CH37439).
[2]
Margaret Martonosi,et al.
Hardware design experiences in ZebraNet
,
2004,
SenSys '04.
[3]
F. J. Pierce,et al.
Regional and on-farm wireless sensor networks for agricultural systems in Eastern Washington
,
2008
.
[4]
Pavan Sikka,et al.
Virtual fencing applications: Implementing and testing an automated cattle control system
,
2007,
Computers and Electronics in Agriculture.
[5]
Ernane José Xavier Costa,et al.
A wireless floating base sensor network for physiological responses of livestock
,
2005
.