Abstract-Proposed wireless sensor node is a highly flexible and programmable system on chip (PSoC) architecture along with integrated RF radio chip, which can be adapted to any IEEE 802.15.4 standard based protocol, working at the band of 2.4GHz. This can be accompanied by the RF antenna matched with the interface circuit for various kinds of sensors and peripherals to form a wireless sensor node. This can be very well used to form a wireless sensor network in different domains. This proposed methodology can be used for specific application for improving the WSN stability and performance. This article will mainly present the design of wireless sensor nodes based on PSoC and CyFi radio chip, including the application specific antenna and hardware design for the system on chip for the sensor node and the simple introduction of the application domain. The proposed nodes are used with a special antenna and application based protocol for communication. This design has a better power handling and performing capacity. Further, we have implemented this for the wireless sensor node as well.
The proposed approach of Vehicle Regulatory System (VRS) using wireless vehicle terminal unit (VTU)* is based on communication between a Vehicle Terminal Unit and the Outside Terminal (OT). The VTU is placed in the vehicle and sends continuously vehicle basic information code through radio frequency signals in all directions. These signals are captured by the OT (which is connected to outside world) and the records of all Vehicle Terminal Units which are in its communication range are stored in its database. The VTU will consist of basic information of the said vehicle like chassis no, engine no, registration no, validity of registration, type of vehicle etc. This information is stored in the memory (read only) of the VTU at the time of registration in continuous encrypted way. Communication or linking of this system is based on radio frequency signal communication in free license band of frequency (2.41 to 2.49 GHz) and application based communication protocol. The range of operation is about 200 meters. It supports different activities of the authorized vehicle regulatory agencies of that region. This system helps to keep track of the road vehicle movements in specific area. It will create new vision in the field of vehicle monitoring and controlling system for next generation applications. *Patent Application no 1912/MUM/2013 Keywords-Vehicle Terminal Unit (VTU), wireless sensor network; Vehicle Regulatory System (VRS);
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