Description

The Starter Set Super-NIA-3D is based on Super-Beacons.

Super-Beacons are a newer version of Beacons HW v4.9 and superior to them in nearly all aspects:

• Super-Beacons have sharp DSP filters (like Mini-RX or Industrial-RX). The Super-Beacons are more sensitive and more interference resistant than Beacons HW v4.9 that are based on analogue filters
• Super-Beacons have improved TX part and power-saving features that allows up to 10x battery lifetime improvement over Beacons HW v4.9 (depending on the settings and update rate)
• Super-Beacons, like Mini-RX and Industrial-RX, use a single wide-beam microphone for receiving ultrasound, thus making submaps in complex conditions (larger distances, for example, or noisy environment) much easier to build, than that with Beacons HW v4.9, because the microphone is always on and it has a wide reception diagram. Whereas, with Beacons HW v4.9 in those challenging conditions, one would need to turn off some sensors and, generally speaking, taking care about the number of sensors (RX1-RX5) turned on in order to provide proper coverage, on the one hand, and to maintain the right sensitivity on another
• All Super-Beacons have 6D IMU (3D accelerometer and 3D gyroscope)

Super-Beacons are better than Mini-RX and Mini-TX as well:

• Super-Beacons are dual-use: they can both receive and transmit ultrasound. You can absolutely freely to use them as stationary and as mobile
• Super-Beacons have external pins (UART, SPI, reset, etc.)
• Super-Beacons have external antenna for longer radio range and larger maps

Super-Beacons support both IA and NIA. Notice, that the set is purely NIA, i.e. all ultrasonic transducers are on the same frequency 31kHz. But you can purchase additional Super-Beacons on other ultrasonic frequencies (19kHz, 25kHz, 37kHz, 45kHz) and re-use earlier purchased 31kHz Super-Beacons and to build IA systems.

Content:

• 4 Stationary Super-Beacons
• 1 Mobile Super-Beacon
• 1 Modem supporting up to 250 beacons

All beacons (stationary and mobile) are equipped with with 6D IMU (3D accelerometer + 3D gyroscope) and standard 50mm antennas. Effectively, you are getting 5 absolutely similar Super-Beacons

The HW of the system supports two bands:

1. License-free ISM band (915 MHz) for the US and countries in Region 2 (https://en.wikipedia.org/wiki/ITU_Region)
2. License-free SRD band (868 MHz) for the EU and other countries: (https://en.wikipedia.org/wiki/Short-range_device#SRD860)

We always recommend to check your country’s local regulations.

Marvelmind Indoor Navigation System is off-the-shelf indoor navigation system designed to provide precise (±2cm) location data to autonomous robots, vehicles (AGV), and copters. It can also be used to track other objects with a mobile beacon installed on them, for example, forklifts in warehouses or virtual reality (VR) helmets or helmets for construction workers or miners, etc.

The navigation system is based on stationary ultrasonic beacons united by radio interface in a license-free band (915/868 MHz ). The location of a mobile beacon is calculated based on the propagation delay of an ultrasonic signal (Time-Of-Flight or TOF) to a set of stationary ultrasonic beacons using trilateration. No manual calibration is required. No need to know exact locations of the beacons – the system builds the map of beacons automatically.

The set contains a mobile beacon with IMU that gives a possibility for ultrasonic + IMU (3D accelerometer + 3D gyro) fusion. That allows much faster update rate – up to 100Hz and above.

Key requirements proper system functionality:

• For 3D (X, Y, Z) tracking – An unobstructed sight by a mobile beacon of three or more stationary beacons simultaneously
• For 2D (X, Y) tracking – An unobstructed sight by a mobile beacon of two stationary or more stationary beacons simultaneously
• Distance to the nearest 2 or 3 beacons – not more than 30 meters (recommended). In ideal conditions – up to 50 meters
• Mobile beacon with IMU onboard