Tracking method of indoor moving target action route based on wsn

Abstract

The invention provides an indoor object activity routine tracking method based on WSN. The indoor object activity routine tracking method includes: distributing gateway nodes and beacon nodes indoor, and distributing moving nodes in moving objects to enable the moving objects to move along with the moving nodes; enabling the moving nodes to receive known beacon node information and update the information to a gateway through a Zigbee network, enabling the gateway to control an upper computer to calculate the positions of the moving objects through a moving self-adaption positioning algorithm based on TODA positioning so as to finish initial positioning; achieving matching rectification of the initial positioning and storing the corrected positioning coordinates into a space database; converting the positioning coordinate information into corresponding position information on a vector map through a vector map visual module and displaying the positioning information. The indoor object activity routine tracking method can improve node positioning accuracy and save consumption of positioning energy by ensuring positioning errors, prolongs service life of the whole wireless sensing network and meanwhile can provide indoor moving historical track replaying.

Description

technical field [0001] The invention relates to the application field of indoor GIS positioning technology, in particular to a WSN-based indoor moving target action route tracking method. Background technique [0002] With its scientific data management function, powerful spatial analysis ability and excellent data visualization expression effect, geographic information system plays a pivotal role in today's social and economic development. Its main focus is to study various entities and phenomena in the whole or partial geographic space of the earth's surface, which reflects that most of the current mainstream GIS technologies are based on relatively large spatial scales, that is, geographic variables exist in relation to time and space. obvious change. However, with the popularization of the concept of intelligence, people's requirements for spatial location, optimal analysis, and intelligent management will extend from outdoors to indoors. According to the survey, the g...

AI Technical Summary

Problems solved by technology

[0005] Wireless local area network technology can work in a centralized manner and has a large coverage area. On the existing basis, it only needs to add a small amount of equipment to put into positioning, but in the case of signal movement, its effect is not good

[0006] Bluetooth technology is effective over short distances and is easy to integrate into small mobile devices such as cell phones, but its equipment is expensive and less stable when the signal is disturbed

[0007] Infrared technology mainly identifies the object to be tested through the label on the object, but the infrared is easily blocked by obstacles such as walls, and its effect is not ideal

[0008] Ultra-wideband technology has a certain development prospect due to its high time resolution, anti-multipath interference, fast transmission speed, and strong penetrating power. However, the high cost of this technology makes it impossible to popularize at present.

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