Visible light positioning system for supermarket shopping guide and navigation method using same

Abstract

The invention relates to a visible light positioning system for supermarket shopping guide and a navigation method using the same, which aim at solving the problems of easiness in influence by environment and waste of energy sources in the positioning process of the existing supermarket shopping guide. The navigation method is technically characterized by comprising the following steps of enabling LEDs (light emitting diode) to correspond to different encoding signals, and sending a starting signal and a closing signal for light responding to the encoding signals; respectively positioning the LEDs in different supermarket areas, enabling a data source to send an encoding signal loaded with high and low electric level information to a modulator-demodulator, and converting into decimal information for controlling an LED light source; sending the decimal information to an LED light source driving circuit, and enabling the LED light source driving circuit to drive the LED to open or close according to the high and level electric level information of the decimal information. The visible light positioning system has the beneficial effects that the influence to the signal collection by environments is very small, all LEDs can use the same illuminance intensity, the gradual increasing is not needed, and the energy source is saved.

Description

technical field [0001] The invention belongs to the field of positioning, and relates to a positioning system and a navigation method. Background technique [0002] In contemporary society, with the gradual improvement of living standards, more and more medium and large supermarkets have been established, and people's shopping enthusiasm has gradually increased. However, there are so many types and quantities of commodities in supermarkets that it is difficult for consumers to quickly and accurately find the desired commodities. This requires a complete shopping guide system, and most existing positioning systems mainly use electromagnetic wave technology, which not only consumes a lot of energy, but is also not conducive to people's health. [0003] In navigation, the more important thing is the accurate positioning of the current position. At present, the positioning system often chooses the light intensity as the acquisition factor for positioning. However, the use of lig...

AI Technical Summary

Problems solved by technology

[0002] In contemporary society, with the gradual improvement of living standards, more and more medium and large supermarkets have been established, and people's shopping enthusiasm has gradually increased. However, there are so many types and quantities of commodities in supermarkets that it is difficult for consumers to quickly and accurately find the desired commodities. This requires a complete shopping guide system, and most of the existing positioning systems mainly use electromagnetic wave technology, which not only consumes a lot of energy, but also is not conducive to people's health

[0003] In navigation, the more important thing is the accurate positioning of the current position. At present, the positioning system often chooses the light intensity as the acquisition factor for positioning. However, the use of light intensity collection for positioning is easily affected by the light in the environment. In addition, in large supermarkets, the light intensity is gradually increased to separate the positions of each area, resulting in light source pollution and energy waste

Images