Marvelmind DSP 2D Indoor Navigation Positioning System
- Provides an off-the-shelf indoor navigation
- Designed to provide precise (±2cm) location data to autonomous robots
- Based on stationary ultrasonic beacons
This is a 2D positioning kit. If you require 3D indoor positioning then please see the 3D DSP positioning kit.
The 2D version requires less hardware and is cheaper to get started. Ideal if you only require 2D (X,Y) positioning accuracy. You can upgrade this kit to 3D accuracy by adding extra DSP RX beacons.
The Marvelmind DSP Indoor Navigation Positioning System is an off-the-shelf indoor navigation system designed to provide precise (±2cm) location data to autonomous robots, vehicles (AGV), drones and forklifts. It can also be used to track other objects that the mobile beacon is installed upon, for example, virtual reality (VR) systems, helmets for construction workers or miners, jackets, etc.
The navigation system is based on stationary ultrasonic beacons that are united by radio interface in a license-free band (915MHz / 868Mhz). The location of the 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.
Included
- 2 x DSP Beacons 915/868MHz as stationary beacons (Beacon Mini RX)
- 1 x Beacon Mini TX with IMU 915/868 MHz as mobile beacon
- 1 x Modem HW v4.9 915/868 MHz
Specifications
Distance between beacons
- Reach up to 50 meters in lab conditions
- Recommended distance is 30 meters (Transducer4 of Beacon HW v4.9 looking straight at Beacon DSP HW v5.xx)
- Range of stable tracking of DSP beacon + Beacon HW v4.9 is 20-50% bigger than the range of Beacon HW v4.9 + Beacon HW v4.9 in the same conditions
Coverage area
- Reach up to 1000 m2 with the Starter Set configurations
- Coverage for larger territories is similar to cellular networks
Location precision
- Absolute: 1–3% of the distance to the beacons
- Differential precision: ±2 cm
- Differential precision is on par or better than in the Beacon HW v4.9, partially, because the sensor is a point – not as spread sensors of HW v4.9; and, partially, because of higher processing power and more advanced algorithms of the DSP beacon
Location update rate
Non-Inverse Architecture:
- 0.05–25Hz
- Can be set manually or in automatic mode
- Depends on the distance between the mobile and stationary beacons (shorter distance — higher update rate)
- Depends on the number of mobile beacons: for example, an update rate of 25Hz for 1 mobile beacon will result in an update rate of 25Hz/2 for 2 mobile beacons, and 25Hz/3 – for 3 mobile beacons, etc. – TDMA approach
- Depends on the radio interface profile (500kbps vs. 38kbps)
Inverse Architecture:
- 0.05–25Hz. With IMU fusion enabled – up to 100Hz
- Can be set manually or in automatic mode
- Depends on the distance between the mobile and stationary beacons (shorter distance — higher update rate)
- Doesn’t depend on the number of mobile beacons – all of them are receiving
- Depends on the radio interface profile (500kbps vs. 38kbps)
Power supply and battery lifetime
Internal:
- LiPo battery 750mAh
- Battery lifetime totally depends on usage
- Stationary beacon with 8Hz update rate => up to 30h
- Stationary beacon with 1Hz update rate => 1 week
- Future power saving features may increase battery life to 1year and more
External:
- microUSB – recommended for permanent use
Weight
- 25g (board + battery + plastic housing)
- 9g (board only)
Manufacturer Product Code: 4680038530055
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