Wireless Data Acquisition System for Launch Vehicles

Sabooj Ray, Jeba Arul Doss, Sheena Abraham, Pradeep N., S. Prem Kumar

Abstract


Present launch vehicle integration architecture for avionics uses wired link to transfer data between various sub-systems. Depending on system criticality and complexity, MIL1553 and RS485 are the common protocols that are adopted. These buses have their inherent complexity and failure issues due to harness defects or under adverse flight environments. To mitigate this problem, a prototype wireless, data acquisition system for telemetry applications has been developed and demonstrated. The wireless system simplifies the integration, while reducing weight and costs. Commercial applications of wireless systems are widespread. Few systems have recently been developed for complex and critical environments. Efforts have been underway to make such architectures operational in promising application scenarios. This paper discusses the system concept for adapting a wireless system to the existing bus topology. The protocol involved and the internal implementation of the different modules are described. The test results are presented; some of the issues faced are discussed and the; future course of action is identified.

Defence Science Journal, 2013, 63(2), pp.186-191DOI:http://dx.doi.org/10.14429/dsj.63.4262


Keywords


Wireless, data acquisition, RF, bus controller, remote terminal, separation events, launch vehicle, radio frequency



DOI: http://dx.doi.org/10.14429/dsj.63.4262



Defence Science Journal (DSJ)