International Journal of Sensor Networks and Data Communications

This paper presents the improvement of a cyber-physical framework which screens the ecological states alternately the encompassing states for example, temperature, pressure in indoor spaces in remote areas. The correspondences between Transmitters and Receivers are performed towards remote foundation which is dependent upon the IEEE 802.11 b/g standards. The resulted solution gives likelihood about logging estimations from areas throughout the world and for visualizing and examining this assembled information from the device associated with Internet. This work includes the complete solution, A cyber-physical system, beginning with physical level, comprising from claiming sensors, processor and the correspondence protocol, and arriving at information management and stockpiling at the digital level. The test outcomes indicate that the suggested framework represents a feasible and straightforward solution for economical monitoring applications.

An ultra-small integrated photonic ten-order resonators temperature sensor has been proposed and demonstrated and fabrication using well-developed MEMS technologies incorporates a silicon ring resonator. The temperature variation is measured by monitoring the shift in the ten-order resonant wavelength of the silicon resonator, which was induced by the thermo-optic effect and the thermal expansion effect. The best achieved sensitivity is about 130 pm/°C for a waveguide width of 450 nm, and the radius of the micro ring is about 5 μm. Meanwhile, the two-channel sensor based on double racetrack rings is also reported.