Introduction to Other Positioning Methods#
Common positioning methods are:
base station positioning
wifi Positioning
Bluetooth positioning
RTK Positioning
UWB Positioning
base station positioning#
Principle: Search and report the surrounding base station information. After reporting to the server, the server estimates an approximate coordinate according to the triangle positioning method, with an accuracy ranging from 500 to 5000 meters.
Advantages: as long as it is 4G communication module support, no additional hardware costs
Disadvantages: positioning accuracy is not high, the error ranges from 500 to 5000 meters
wifi Positioning#
Principle: Search and report nearby wifi information. After reporting to the server, the server estimates an approximate coordinate according to the triangle positioning method, with an accuracy ranging from 50 to 500 meters.
Advantages: as long as there is wifi scan function to support
Disadvantages: The positioning accuracy is not high, and the error ranges from 50 to 500 meters. However, for modules without independent wifi antennas, searching for wifi affects data communication, such as Air780E series
Bluetooth positioning#
Principle: Search and report nearby Bluetooth information. After reporting to the server, the server estimates an approximate coordinate according to the triangle positioning method.
Advantages: as long as there is Bluetooth scan function to support
Disadvantages: Usually used in conjunction with other positioning methods, Bluetooth itself has no networking function
RTK Positioning#
Principle: The high-end GNSS module supports RTK differential positioning. By continuously receiving differential data, higher precision positioning can be achieved, up to centimeter level.
Advantages: high positioning accuracy, error within centimeter level
Disadvantages: Requires hardware support, expensive, differential data needs to be continuously injected, usually obtained through the network, some high-end models can support satellite-based differential data.
UWB Positioning#
Principle: Use ultra-wideband technology to achieve ultra-low power consumption, low cost, high precision, and the error is within the centimeter level
Advantages: high positioning accuracy, error within centimeter level
Disadvantages: Requires hardware support, expensive, usually only for indoor positioning
LuatOS Support library for the above positioning methods#
Most are third-party libraries, please verify and evaluate
Base station location: luatos official library lbsLoc
Base station positioning v2: luatos official library lbsLoc2
Pure wifi positioning: luatos-lib-wifiloc, third-party library
rtk Positioning, docking ntrip protocol: luatos-lib-ntrip, third-party library
Converged Positioning, Tencent LBS, Base Station wifi Bluetooth: luatos-lib-qqlbs, Third Party Library
rtk Positioning, China Mobile Single Frequency ntrip Broadcast: luatos-lib-onenetcors, Third Party Library