A positioning method for automatic target matching based on map information
A technology of automatic matching and positioning method, applied in the directions of navigation, instrumentation, mapping and navigation, etc., can solve the problems of WIFI signal is not particularly stable, low density of access point deployment, historical data is not fully utilized system model, etc., to reduce Effects of Calibration Costs
Active Publication Date: 2021-06-01
感知智能科技新加坡有限公司
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Problems solved by technology
However, according to the positioning requirements, the deployment density of access points is low (generally at least 3 access points are required for the same positioning target, and the signal meets certain requirements)
2. The historical data of the positioning process has not been fully utilized in the current system model, and the dynamic changes of positioning information have not been fully considered
3. The WIFI signal itself is not particularly stable, and many factors affect the transmission of indoor signals, such as the influence of the propagation model of obstacles, and other electronic products, such as air conditioners, microwave ovens, wireless mice, wireless speakers, Bluetooth, etc. also use this frequency band
However, for smaller objects, it is difficult to identify them in wide-area images using ordinary cameras
If you use an ultra-high-definition camera, there will be problems with cost and post-processing capabilities
Method used
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[0037] The technical solution of the present invention will be specifically described below in conjunction with the accompanying drawings.
[0038] A positioning method for automatically matching targets based on map information of the present invention uses a map creation module to establish a physical environment map and a wireless positioning map in a wireless environment; in the physical environment map, the movable range of an object is determined, including the feasible region and Virtual point; in the wireless environment, make the moving target move within the movable range, and determine the current position of the moving target according to the information of the wireless positioning map; finally, match and calibrate the moving target according to the virtual point of the physical environment map, the method is specific The implementation is as follows:
[0039] Step S1. In a wireless environment, use the map creation module to create a physical environment map and a...
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The invention relates to a positioning method for automatically matching targets based on map information. In a wireless environment, use the map creation module to establish a physical environment map and a wireless positioning map; in the physical environment map, determine the range in which objects can move (including feasible regions and virtual points); in a wireless environment, the moving target is within the feasible range According to the information of the mobile target on the current wireless positioning map, determine the current position; match and calibrate the moving target according to the virtual point of the physical environment map; at the same time, the system may set some reference points with accurate position information for further calibration. The invention has universality and can be applied to various indoor and outdoor wireless positioning systems.
Description
technical field [0001] The invention relates to a positioning method for automatically matching targets based on map information, in particular to a wireless positioning correction method suitable for automatically adjusting position information positioning using map information and other occasions requiring high positioning accuracy. Background technique [0002] Location-based services (location-based services) have been widely used, among which the most well-known to the public is the use of the US GPS (Global Posit1ning System, Global Positioning System), China's Beidou navigation system, (BNS / COMPASS, Beidou navigation system), or Russian GLONASS for outdoor vehicle navigation. For indoors, a series of base stations can also be used to introduce positioning signals, and "indoor satellite" positioning has been realized. In addition to directly using outdoor long-distance signals such as GPS, FM / AM, 3G / 4G / 5G, NB-IOT, etc., short-distance signals such as WIFI, LIFI, Bluet...
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IPC IPC(8): G01C21/20
CPCG01C21/206
Inventor 徐俊邹焓江灏杨剑飞
Owner 感知智能科技新加坡有限公司