APPLICATIONS

Simple Solutions for Complex Connections.

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Communications

Blind Indoor Navigation System

Indoor navigation is convenient for everyone, and it is especially indispensable for the visually impaired. We proposed such a navigation system for the visually impaired as shown in Figure.


LED lights emit visible light with location data and embedded system or smartphone with a visible light receiver receives the data. The embedded system or smartphone calculates the optimal path to a designation and speaks to the visually impaired through a headphone.

Under Water Communication System

Information is transmitted from one point to another via modulation. Modulation, forming the basis of communication, is the process of transmission of low frequency data signal with high frequency carrier signal. As it could be understood from the description above, we need two signals for modulation process. These are data signal (voice, music, map, and video) to transmit and high frequency carrier signal. For three reasons modulation is a necessity. First, low frequency data signal has not that much energy to travel far distances. Second, if low frequency data signal were not imposed on carrier signal, in other words if not modulated, the dimension of the antenna would be inefficiently long. It is because the dimension of the antenna is inversely proportional to frequency. Third, data signal bandwidth is 20 Hz-20 KHz and assuming the frequency range of amplitude modulation is 5-10 KHz, there could be a few stations established. For these causes modulation as basis of communication is a demanding tool needed to be used.

Vehicle Underground or Tunnel Navigation System

The goal of this project is to develop a small, portable yet an intelligent and reliable system for everyone while roaming autonomously in indoor unlike malls. Now a days, places like malls consists of power driven LED’s because they are available for cheap and power efficient and gives out long life. It supports LiFi Technology which is the emerging area of technology is also known as Visible Light Communication. In other words, it is also called as Wireless Optical Communication. VLC is a wireless communication technology that uses light that is visible to human. LiFi is transmission of data wirelessly through LED light that varies in intensity faster – door than human eye can follow. When the person moves in an in-door unit, the LiFi enabled devices receives the information about the location and directions. The navigation information can be seen on the LCD screen or any other display unit.

Monitor as transmitter for Data Communication

The project is based on the next gen data transfer technique to enable transmission from the LED monitor to the devices. The conventional methods of data transfer are via wired, infrared, blue tooth and NFC. These technologies have their own limitations which is the main reason for us to come up with this novice technology. The principle for communication here is – encoding and decoding data via black and white color display which will flicker at very high speed. Whenever a file needs to be transmitted, it is initially selected. A mini icon of the file will be created at the right side corner of the LCD screen. This image will constantly flicker between white and black colors. The device with sensor should be brought near the mini folder of the LCD screen which will capture the encoded images and display data on hand held device.

Preventing Phishing Attacks using One Time Password and User Machine Identification

Phishing is a type of attack in which cyber criminals tricks the victims to steal their personal and financial data. It has become an organized criminal activity. Spoofed emails claiming to be from legitimate source are crafted in a way to lead victims to reveal their personal, financial data by misdirecting them to the counterfeit website. This research paper presents a novel approach to combat the Phishing attacks. An approach is proposed where user will retrieve the one time password by LiFi Device LCD screen. After receiving the one time password the application software will create an encrypted token for the user’s computer/device for authentication. The encrypted token will be used for identification, any time user wishes to access the website he/she must request the new password. The one time password as name implies will expire after single use. The one time password and encrypted token is a smart way to tackle this problem.

Super market navigation system and discount information based on location

Positioning, also known as localization, is the process of determining the spatial position of an object or person. Accurate positioning is critical for numerous applications. The familiar Global Positioning System (GPS), originally a U.S. military system, is now in everyday use around the world, often in new and unexpected ways. Unfortunately, GPS is not suitable in many indoor situation. To obtain location information using GPS, a device must be able to receive signals often not possible indoors. Even when GPS posi-tioning is available, it may not be accurate enough for many indoor applications. Despite decades of research into indoor positioning using from a number of GPS satellites, and this is technologies such as radio systems based on wireless local area networks (LANs), there is still no system that is cheap, accurate, and widely available . The fundamental problem in radio based systems is multipath propagation. Radio signals may reach a receiver by both direct line of sight and multiple reflected paths. This means that there is no simple and reliable way of deter mining the distance or direction of the transmitter from the received signal. 

VLC based v2v (Vehicle to vehicle communication)

Vehicular Ad hoc NETworks (VANETs) belong to a subcategory of traditional Mobile Ad hoc NETworks (MANETs). The main feature of VANETs is that mobile nodes are vehicles endowed with sophisticated “on-board” equipments, traveling on constrained paths (i.e., roads and lanes), and communicating each other for message exchange via Vehicle-to- Vehicle (V2V) communication protocols, as well as between vehicles and fixed road-side Access Points (i.e., wireless and cellular network infrastructure), in case of Vehicle-to-Infrastructure (V2I) communications . Future networked vehicles represent the future convergence of computers, communications infrastructure, and automobiles . Vehicular communication is considered as an enabler for driverless cars of the future. Presently, there is a strong need to enable vehicular communication for applications such as safety messaging, traffic and congestion monitoring and general purpose Internet access.

Smart LIFI based Car Parking system

Smart parking information system exploiting visible light communication (VLC) technology to help drivers getting the real-time parking information as well as direction guide. By providing accurate information on available parking spaces, drivers save time and fuel and increase efficiency of the parking process. Therefore, the proposed system not only gives the illumination function of LED but also the function of communicating in the manner of application based on the VLC. The effectiveness of the proposed scheme is validated through experiments in an indoor environment. In modern life, the shopping complexes always attract people for its good products and service. What’s more, shopping complexes have begun providing services much more diverse than just pure selling and buying. Customers can use banking services, post offices, food courts, cinemas, children’s Hence, more shop manager prefers to invest much money and time in designing the interior, store location, parking lots and so on to target more customers and increase revenue. Providing sufficient parking spaces for visitors is one of the most important issues in developing shopping complexes. 

NAV WIRELESS
TECHNOLOGIES PVT LTD.

info@navtechno.in

+9179 4842 1010

Office Address: Unit 403, Abhishilp Business Complex, Judges Bunglow road, Ahmedabad – 380015, Gujarat, India.

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