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Li-Fi based data loading in cockpit systems

IP.com Disclosure Number: IPCOM000248044D
Publication Date: 2016-Oct-21
Document File: 4 page(s) / 238K

Publishing Venue

The IP.com Prior Art Database

Related People

Ashokkumar Ghoshi, Narayanan S, Saravanan Jayachandran, Karthikeyan M, Ponmuthukumar Balasubramanian: INVENTOR

Abstract

Data loading in cockpit systems is performed by maintenance engineers using a handheld device. The handheld device communicates with a data loader in an aircraft to exchange data with cockpit systems. The data loading is performed using low power wireless Local Area Network (WLAN) (For example, Wi-Fi (IEEE 802.11x)). The use of low power Wi-Fi reduces the speed of data loading. With growing traffic and multiple users at an airport, the speed of Wi-Fi gets reduced further and amount of time required for data loading increases. Longer data loading times leads to increase in parking related charges. Further, the Wi-Fi based wireless communication channel may be susceptible to hacking. The proposed solution discloses use of a high speed visible light based communication system (For example, Li-Fi) for data loading to increase the speed of data loading and reduce the time taken for loading.

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Page 01 of 4

Li-Fi based data loading in cockpit systems

Ashokkumar Ghoshi, Narayanan S, Saravanan Jayachandran, Karthikeyan M, Ponmuthukumar Balasubramanian

ABSTRACT

Data loading in cockpit systems is performed by maintenance engineers using a handheld device. The handheld device communicates with a data loader in an aircraft to exchange data with cockpit systems. The data loading is performed using low power wireless Local Area Network (WLAN) (For example, Wi-Fi (IEEE 802.11x)). The use of low power Wi-Fi reduces the speed of data loading. With growing traffic and multiple users at an airport, the speed of Wi-Fi gets reduced further and amount of time required for data loading increases. Longer data loading times leads to increase in parking related charges. Further, the Wi-Fi based wireless communication channel may be susceptible to hacking. The proposed solution discloses use of a high speed visible light based communication system (For example, Li-Fi) for data loading to increase the speed of data loading and reduce the time taken for loading.


1. INTRODUCTION

Complex digital computing devices on aircrafts require, frequent updates and, data from aircraft equipment to be downloaded periodically. Current systems for data exchange (updates/download) makes use of a data loader. The data loader is primarily used for updating the aircraft equipment software using databases. The databases are downloaded and executed via storage mediums (USB/DVD/CD or any storage device) on a mobile device. The data loader receives data relating to the aircraft equipment from the mobile device over wireless connection. Although efficient, the wireless transfer of data suffers from several drawbacks of the Wi-Fi system in the aircraft environment. The usage of low power Wi-Fi connection is recommended due to Electro Magnetic Interference (EMI) issues.


Page 02 of 4

This instantaneously reduces the speed of data transfer and data loading, leading to increased time required for updating and exchanging data with aircraft systems. This in turn increases the overall parking time of aircrafts at airports. Increase in parking time leads to increase in parking related charges. The parking related charges are expensive and often charged to airlines on an hourly basis. With growing traffic density at airports, multiple routers are installed for catering to multiple aircrafts, which leads to complexity of system and degradation of data transmission speed

The use of low power Wi-Fi in aircrafts to reduce EMI restricts the data transmission rates. Although the existing avionics bus in aircrafts which receives/transmits data is capable of data transfers at gigabits per second, the current data transmission rates of the data loaders are only under megabits per second owing to the...