Author : Sreedrisya S 1
Date of Publication :7th April 2016
Abstract: Measurement is an important subsystem of embedded system. Its main function is to collect the information from systems and feed to the processor for controlling the whole system. For collecting data, different types of sensors are used. Each sensor has to write complex and clumsy program code. Most of the control panels available in industries are wired panels and the machines are controlled and monitored by an operator in a room. It leads to the invention of sensor interface device controlled by wireless modules like zigbee, MiWi etc. Microcontrollers, one of the sensor interface device have some restrictions like connect number, sampling rate and signal types of sensors. To overcome these problems Field Programmable Gate Array (FPGA) is adapted as core controller. By using this, data can read in parallel and in real time with high speed from different sensors. MiWi module developed by Microchip is used here as wireless transceiver. But every wireless communication modules have limitations in the range. The concept of Internet of Things (IoT) is applied on the wireless sensor interface device. IoT is a concept of connecting and controlling devices through internet. Wide range of applications is available in IoT like industry, agriculture, environment protection etc. To maintain security in communication, data can send in encrypted form using suitable algorithm. A wireless sensor interface device designed using VHDL and is implemented in IoT environment using Java and C#.
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