Indoor parking lot navigation method based on fusion of WiFi and sensor network technology

Abstract

The invention discloses an indoor parking lot navigation method based on fusion of WiFi and sensor network technology. The indoor parking lot navigation method comprises a parking cell detection module and a fusion positioning module, wherein the fusion positioning module determines whether a parking cell is occupied by a vehicle according to intensity changes of an earth magnetic field before and after parking. The parking cell detection method has the advantages of low cost, easiness in installation and the like compared with a traditional detection method. The fusion positioning module adopts a fusion positioning method in which geomagnetic sensing network and WiFi positioning technology are fused together. The geomagnetic sensing network can acquire the area and lane where a vehicle is located in real time; since the geomagnetic sensing network and the WiFi positioning technology are fused together for positioning, positioning precision can be greatly improved, and the precise position of the vehicle in a parking lot is provided; and through combined usage of information about unoccupied parking cell provided by parking cell detection technology, fast parking by the user is facilitated.

Description

technical field [0001] The invention relates to the technical field of navigation, in particular to an indoor parking lot navigation method based on the fusion of WiFi and sensor network technologies. Background technique [0002] Since the reform and opening up, my country's economy has been in a state of rapid development, and people's quality of life has been improving day by day. Cars have entered the gates of every household, which has brought great convenience to people's travel, but at the same time it also makes car parking and parking lots more difficult. Management problems are becoming increasingly serious. [0003] As the main place for urban parking, the parking lot is a key breakthrough to solve the difficult problem of urban parking. The construction of a large number of parking lots has provided enough parking spaces for parking demanders. Although it can effectively alleviate the problem of parking difficulties, due to the constraints in the management techn...

AI Technical Summary

Problems solved by technology

The construction of a large number of parking lots has provided enough parking spaces for parking demanders. Although it can effectively alleviate the problem of parking difficulties, due to the constraints in the management technology of the parking lot, these parking resources cannot be fully and effectively used, which greatly affects the parking lot. Increased the difficulty of the expansion of the parking lot

[0004] On the other hand, from the in-depth research and analysis of the current urban parking lot management technology, it is found that there are two problems: ① In terms of parking space detection, a detection module is currently arranged on each parking space, which is complicated for the cost and construction of the parking lot. The degree of difficulty increases; ②Currently, the parking lot in the city cannot provide the user with his exact location in the parking lot, which is convenient for the user to find the best parking space, which increases some unnecessary resource consumption

At present, the WiFi indoor positioning technology can only guarantee that 50% to 60% of the possible errors are within 2m, and the accuracy needs to be improved, and there is a defect of large errors

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