Design Techniques for Streamlined Integration and Fault Tolerance in a Distributed Sensor System for Line-crossing Recognition

Shen, Chung-Ching; Kupershtok, Roni; Bhattacharyya, Shuvra S.; Goldsman, N.

doi:10.1109/icccn.2007.4318007

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“…Since the LCR system is fully distributed without using any base station, a selforganizing protocol is required to make sure that all sensor nodes communicate with each other effectively. We have also designed an efficient, specialized wireless TDMA protocol with useful fault tolerance features [2] so that every node receives and transmits at designated time slots, and sleeps during other times for saving energy.…”

Section: Light-weight Algorithm and Protocol Design Formentioning

confidence: 99%

“…This system includes optimizations associated with algorithm streamlining, communication protocol configuration, and hardware/software implementation. We summarize our developed light-weight distributed algorithm for line-crossing recognition [1,2], together with its specific protocol implementation, and present the corresponding hardware implementation. We also describe a system prototype that we have built based on off-the-shelf devices, including a field programmable gate array (FPGA).…”

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confidence: 99%

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Design and implementation of a device network application for distributed line-crossing recognition

Shen

Kupershtok

Bhattacharyya

et al. 2007

2007 International Semiconductor Device Research Symposium

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INTRODUCTIONMany application-specific distributed sensor systems that consist of so-called sensor nodes require small size and low power features due to their limited resources, and their use in distributed, wireless environments. A sensor node platform typically consists of various devices, including a microcontroller for data computation and peripheral control, a transceiver for communication with other nodes, one or more sensors for data acquisition, and a battery for energy support. Using off-the-shelf devices to build sensor node platforms generates unnecessary power/energy consumption and area. When their significantly increased cost can be tolerated, design of application-specific devices is desired to better achieve the goals of small size and low power consumption. In this paper, we present a complete distributed sensor system design with features of low energy usage and small size. In this system, a distributed application for linecrossing recognition (LCR) is demonstrated as a concrete example. This system includes optimizations associated with algorithm streamlining, communication protocol configuration, and hardware/software implementation. We summarize our developed light-weight distributed algorithm for line-crossing recognition [1,2], together with its specific protocol implementation, and present the corresponding hardware implementation. We also describe a system prototype that we have built based on off-the-shelf devices, including a field programmable gate array (FPGA). The use here of an FPGA is an intermediate stage towards our development of digital application-specific integrated circuits (ASICs) that are fully specialized for our targeted sensor nodes. Our on-going and future work is to integrate the digital ASIC subsystem that we are developing with customized wireless communication, sensor, and antenna devices.

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Section: Light-weight Algorithm and Protocol Design Formentioning

confidence: 99%

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confidence: 99%