Ikarus: fault tolerance ground-based navigation system
Ikarus is an alternative to GNSS, it is a distributed system of devices for navigation, mapping, and time synchronization. It is designed to provide users, businesses, and governments with the location and time stamps of the desired device. Ikarus tracks devices in real-time, taking into account a variety of complex geolocation conditions, underground passages, parking lots, buildings, and mines. Ikarus can be connected to the Prometeo blockchain network or work separately, distribute network, and be recognized by our CNC system.
Navigation and time synchronization today
GNSS is a satellite navigation system created for positioning (determining the location in space – coordinates) of objects. In addition to determining the location, modern navigation systems allow you to determine the direction of the object, movement and speed.
GNSS systems consist of two components: space and ground.
Without going into details, the principle of operation of such devices is to measure the distance from the antenna on the object to the satellites. The distances of several satellites and their position are known quite accurately. So navigation systems calculate the location of an object, using conventional geometric constructions.
Satellite systems provide not only location but also time synchronization for devices. Any electronic device capable of communication must be time-synchronized with a certain accuracy. Any enterprise, state, structure, and end-user has a synchronized electronic device. Including
power plants, airports, banks, stock exchanges, computers, and hospitals, all devices require accurate time. Today they are taken from satellites or ground-based atomic clocks.
And, there are some problems
At the moment, satellite technology does not allow us to determine the location inside of a building or underground. Because under adverse conditions, the signal may be distorted or lost. Satellite signals lie in the decimeter frequency range, so even dense clouds or foliage will greatly degrade signal strength. Ordinary radio waves and magnetic storms can also serve as interference.
When GPS is combined with other internet applications, such as social media apps, for example, we are given full permission to track our position and gather data on a person’s travel and shopping habits. But who knows, which secrets they may contain. It can be difficult to delete the footprints, to eliminate them, we should proceed with social media apps deleting, which is impossible for modern society.
However, the main significant drawback is the proprietary nature of communication satellites. States with GNSS technology can restrict the use of the technology at their discretion. If you notice, it has even made headlines lately.
In 2012, Newark International Airport (New Jersey) was disrupted for nearly two weeks because of a driver who activated GPS blocking in his car to avoid his boss. In 2013, the London Stock Exchange halted its activities for twenty-four hours due to a similar situation. In 2017, the navigation systems of twenty trade ships in the Black Sea reported that they were in an airport, despite being dozens of kilometres from land. In 2017, an airport in France was essentially disabled for a couple of hours due to a driver who forgot the GPS blocker in his car. 
Ikarus, solve the troubles!
Ikarus devices are united in a single network in compliance with security measures, excluding the possibility of juggling geolocation results. Each device will be registered in the network, and cryptographic elements will ensure secure data transfer. The loss of both parts of the devices and the external network will not affect the overall operation.
Movement information, logic objects, and sensor readings will be generated on a decentralized blockchain with access through a digital key. Enterprises and structures, if desired, can store and process data arrays on their servers. Ikarus is a separate closed system that exists outside the Internet.
Ikarus network devices use modern communication transfer protocols based on the TS 103-357 standards. Today, the best choice is Mioty, but currently, we work on creating a new standard, to optimize the protection and communication between our devices and the blockchain. It gives total protection against the Jammer. The LPWAN is the new standard and today this standard is resistant to expected wireless interference. The protocol is designed for mass industrial networks and network deployment for large multitasking devices with a high degree of reliability and scalability.
A significant innovation over existing technologies is dividing the frequency-based datagrams. Those frequencies are transmitted in the data stream into small sub-packets at the sensor level with TSMA technology.
TSMA is a random channel access technique in which the radio transmission of a packet is divided into several short radio packets. Packets are transmitted over the radio channel at time intervals with no transmission in between. Radio packets are pseudo-randomly distributed in time and frequency in a radio frame. This method provides high noise immunity to radio transmissions of other radio devices, both domestic and foreign radio communication systems. Only some parts of radio packets are required to receive the complete message, it is unnecessary to have the complete packet.
1 Shlomi Mazor «Preparing for cyber attacks on GPS systems». – https://www.focus-telecom.com/preparing-for-cyber-attacks-on-gps-systems