The invention discloses an ultra-low power consumption indoor and outdoor hybrid positioning system. The system comprises a plurality of iBeacon base stations which are arranged indoors and broadcast general unique identification codes through Bluetooth by preset signal intensities; a positioning node, wherein the positioning node is arranged on a moving object to be positioned, periodically monitors the plurality of general unique identification codes and the corresponding signal intensities around the positioning node through Bluetooth and outputs the monitored result by means of LoRa; a wireless gateway used for receiving the plurality of general unique identification codes and the signal intensity information and outputting the plurality of general unique identification codes and the signal intensity information through a mobile network; and a cloud platform used for receiving the plurality of general unique identification codes and the signal intensities and determining the latitude, longitude and indoor position of the moving object. According to the invention, by adopting the iBeacon technology based on Bluetooth indoors and adopting a GNSS positioning technology outdoors, precise positioning and seamless switching are realized, low power consumption and long distance transmission is realized by means of the LPWAN gateway, the positioning precision is high, the power consumption is low, the distance is long, and the system is suitable for large-scale popularization and application.

Ultra-low power consumption indoor and outdoor hybrid positioning system

The invention relates to the technical field of wireless communication networks, in particular to an indoor and outdoor integrated high-precision positioning and navigation system as well as a positioning method thereof. The system comprises a map data construction unit, an indoor ultra-wideband positioning and navigation unit, an outdoor BD/GPS positioning and navigation unit, an indoor and outdoor positioning data fusion unit, a central server unit and a terminal display unit, wherein the indoor ultra-wideband positioning and navigation unit is used for performing indoor space positioning in a ranging mode, the outdoor BD/GPS positioning and navigation unit is used for performing outdoor space positioning through a Beidou satellite navigation/GPS satellite navigation system, the indoor and outdoor positioning data fusion unit is used for judging whether a positioning label is indoor or outdoor and can intelligently switch positioning modes according to the judgment result and fuse indoor and outdoor positioning manners. Problems that positioning and navigation of personnel and objects in a large-range area are difficult to realize, not high in precision and the like at present are solved, and large signal interference and positioning deviation caused by mutual interference among signals can be avoided in the ranging mode.

Indoor and outdoor integrated high-precision positioning and navigation system as well as positioning method thereof

The invention discloses a low-power-consumption indoor and outdoor positioning method which comprises the steps of arranging positioning beacons such as a Bluetooth device in a required indoor environment; after a receiving end receives positioning information, performing low-power-consumption transmission of the positioning information to a background monitoring system by means of LPWAN technology, finishing indoor positioning by the background monitoring system, and simultaneously, performing positioning at an outdoor space by means of a satellite navigation system, transmitting a latitude-and-longitude result which is output from the satellite navigation system back to the background monitoring system through the LPWAN, thereby realizing omnibearing positioning in the indoor space and the outdoor space. The low-power-consumption indoor and outdoor positioning method overcomes problems of high cost and high power consumption. Furthermore on the condition that a sensor senses a fact that a person or an article does not move, the sensor automatically enters a dormancy state, thereby effectively prolonging duration time and standby time and greatly improving actual popularization value.

Low-power-consumption indoor and outdoor positioning method

The invention discloses a base station switching method in a low-power indoor-outdoor positioning technology. The method comprises the following steps: deploying a low-power positioning node in an indoor environment, implementing low-power transmission of positioning information to a background monitoring system by a LPWAN (Low-Power Wide-Area Network) technology, finishing indoor positioning on the background, meanwhile performing outdoor positioning by a satellite navigation system, and returning longitude and latitude results output by the satellite navigation system to the background through the LPWAN to realize indoor-outdoor omni-directional positioning; and deploying a plurality of base stations, making a preset table for positioning nodes under the coverage of the base stations, recording base station information for communication connections to be selected by receiving ends at locations where the positioning nodes are positioned in the table, selecting whether to switch between base stations according to the power of a positioning tag radio-frequency signal or internally switching to an appropriate modulation way, and performing modulated transmission of signal data in order that positioning is more accurate.

Base station switching method in low-power indoor-outdoor positioning technology

The invention provides a mobile device-based movement track drawing method and system. The method comprises the steps of obtaining the intensity of GPS signals measured by GPS positioning and the intensity of WIFI signals measured by WIFI positioning; comparing the GPS signal intensity and the WIFI signal intensity to determine which is greater; if the GPS signal intensity is greater than the WIFI signal intensity, using GPS positioning to obtain the current position coordinates of a mobile device; otherwise, using the WIFI positioning to obtain the current position coordinates of the mobile device; drawing the movement track of the mobile device according to the position coordinates of the mobile device. According to the invention, hybrid positioning is used to obtain the position of a user and the movement path of the user is recorded; based on an electronic map of a third party and the existing positioning basis of the electronic map, positioning is completed through coordination of improved algorithms.

A mobile device-based movement track drawing method and system

The invention relates to an indoor and outdoor seamless positioning system integrated with satellite navigation and a bluetooth technology, and a method thereof. The system comprises an outdoor satellite positioning module, an indoor bluetooth positioning module, an indoor and outdoor positioning fusion switchover module, and an electronic map display module. The outdoor satellite positioning module performs outdoor positioning by using GPS or Beidou Satellite navigation terminals. The indoor bluetooth positioning module performs indoor positioning by using a field intensity attenuation principle and a three-dimensional spatial positioning algorithm. The indoor and outdoor positioning fusion switchover module performs fusion, switchover, and integration on indoor and outdoor positioning methods according to strength of indoor and outdoor positioning communication signals and based on a federated kalman filter, so as to realize smooth transition of indoor and outdoor positioning. The electronic map display module displays positioning results based on two-dimensional electronic maps or indoor plane graphs, and three-dimensional building model scene graphs. The system can provide an indoor and outdoor integrated positioning function for intelligent mobile devices, and positioning speed is fast, and positioning precision is high.

Wu Xiaozhu

Papers

Indoor and outdoor seamless positioning system integrated with satellite navigation and bluetooth technology, and method thereof