Displacement monitor method and positioning method for positioning system

Abstract

The invention discloses a displacement monitor method and a positioning method for a positioning system. Monitoring flight time and initial flight time are compared so as to acquire time change information, so as to determine whether the position of each positioning base station or coordinator station changes, and coordinator stations and positioning base stations changing in position are positioned separately by using positioning base stations and coordinator stations without changing in position. Through adoption of the method, position change of the positioning base station can be monitoredin real time, components in the system are synchronized in time, time of arrival (TOA) positioning of a to-be-positioned device MS is realized, the positioning accuracy is high, and the positioning system can adapt to the impact of environment change on the positioning system. In the positioning system, the positioning base station and the coordinator station can be positioned, so that the positioning base station and the coordinator station can be put on a to-be-positioned device changing slightly and slowly, for example, a mountain, a building or a dam, so as to monitor the to-be-positioneddevice.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a displacement monitoring method for a positioning system. Background technique [0002] For the safety monitoring of large buildings, urban dense areas, bridges, dams, mountains, foundation pits and other areas, it is helpful to realize the safety monitoring of personnel, emergency rescue, transportation management, distribution and scheduling of materials, and natural disasters prevention and monitoring, etc. Due to dense buildings, occlusion, and complex environment, the monitoring space is narrow and GPS and Beidou signals often cannot be covered deeply, which makes space monitoring difficult. In the prior art, the positioning and monitoring of a designated target in a specific area is realized through a self-built positioning system. UWB (Ultra Wideband) is a carrier-free communication technology that uses nanosecond to picosecond non-sinusoidal narrow pulses to trans...

AI Technical Summary

Problems solved by technology

In the implementation process of the above algorithm, the geographic location of each positioning base station needs to be known in advance. In the prior art, the geographic location of each positioning base station is measured in advance, and the measurement results are used in the entire positioning process. However, due to natural or artificial Due to factors, the position of the positioning base station changes, but the positioning system cannot know the change of the position of the positioning base station, so it still uses the original geographical location of the positioning base station, which seriously affects the positioning accuracy

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