You would need to develop a client side application to do this or use an alternative analytics platform (Cisco’s CMX). Designed to work with most Wi-Fi hardware (AP, embedded IoT devices, clients).ĩ WHAT IT ISN’T It isn’t used for client tracking. Extensible (for adding functionality such as time-of-flight). WHAT IT IS SubPos is a standard for transmitting position information via Wi-Fi, for use in client side trilateration. Beacon frames must be sent at a minimum rate of 1mbps and b to normalise RSSI across all devices.Ĩ Extensible (for adding functionality such as time-of-flight). ^ Decimal value is offset by to create unsigned value (dBm -100bDm is the minimum receive strength, 23dBm is the maximum note, this doesn't relate to RSSI maximums and minimums). ~ Should be height of floor relative to height of mean sea level, not where the node/access point is mounted, unless 3D location is enabled. Generally unique for an Application ID (unless 0x0). * Unique to an area, not necessarily the entire world. Through this we can send location information through beacon frames. * SubPos – Subterranean PositioningĦ HOW IT WORKS Ok so the basic concept is this. Send your position without having to associate to the AP, by encoding your position in the SSID. While there are many open source positioning solutions, they all require complex data relationships to be set up.ĥ CONCEPT How can you enable GPS like positioning in a subterranean environment?* SubPos is based on a Microsoft Research paper about transmitting data over SSIDs “Beacon-Stuffing: Wi-Fi Without Associations”. No longer have to send your position to big data, while maintaining backwards compatibility with many devices on the market. SubPos was created fill a gap in the market for open source indoor positioning, that doesn’t require data connectivity.
The initial concept came about during a caving expedition.
#Esp8266 firmware 00160901 android#
Download the Android Monitor Demo*: * Now with 200% more bugs!ģ WHAT IS SUBPOS? SubPos is an open source Wi-Fi positioning standard that can be used anywhere GPS or data connectivity doesn’t exist.
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