New opportunities: LED white indoor positioning to achieve commercial accuracy of 1 meters

As more and more SHOPPINGMALL more than 100 thousand square meters, as more and more large interior space are facing a large space and the monitoring situation, when we have with the responsibility of the WIFI, Bluetooth transmission of indoor positioning system frequently appears when the error is large, people began to seek more reasonable, indoor positioning technology is more adapt to the future development trend the.

The rapid spread of LED light to visible light communication technology (LED white light communication technology) has become the indoor positioning technology, the latest and most look forward to, solve the problem has plagued all indoor positioning technology, positioning accuracy of more than 5 meters, the positioning accuracy is limited to 1 meters!

Both foreign and domestic technology pioneers, are focused on the LED white light indoor positioning technology, but only the first to complete the process from technology to commercialization.

The accuracy of the indoor positioning technology

As early as 2011, Google mobile phone map version 6 released in some areas have joined the indoor navigation function, this scheme mainly depends on the GPS (general indoor can search to 2 ~ 3 satellites), WiFi signal, mobile phone base station and according to some "blind spots" (GPS, WiFi or no indoor base station signal of the place) the specific location to complete the indoor positioning.

Although this program is not perfect, both the localization accuracy or signal stability there are obvious defects, so the Google mobile phone map are more innovative concept, technical feasibility is not universal. But still caused a sensation at the time, people felt the breakthrough in the indoor positioning technology.

In 2013 September established a Apple Corp called iBeacon technology on mobile equipment newly released, causing the mad pursuit of fruit powder.

Although Apple fans buy it, but the technology is mainly through Bluetooth technology to achieve indoor positioning, in the view of scientific research personnel, this is not a highest precision, nor a signal is the most stable indoor positioning technology.

Because whether it is GPS or WIFI, or Bluetooth, technical defects, especially in terms of accuracy is very obvious. GPS positioning accuracy of 10 to 100 meters, and also subject to environmental impact, the need for multi-point positioning and data matching can be completed, the reaction rate is relatively slow. Although WIFI and Bluetooth technology is relatively mature, but the principle through the wireless signal dependent mobile phone, WiFi wireless network in the air by measuring the attenuation of the wireless signal strength attenuation distance to determine the indoor location. However, due to the wireless signal attenuation in the air by the great impact of the building environment, the positioning is very inaccurate. However, there is no way to locate the accuracy of less than 5 meters, and the indoor space of the floor recognition is not high, signal stability and confidentiality of information transmission is also difficult to guarantee.

Although many international universities, research institutes and Google, NOKIA, Motorola, Microsoft and other business chiefs conducted a lot of research, but has not been able to transcend the theoretical obstacles. In the face of "last mile navigation indoor positioning in traditional outdoor navigation when equal to anything has insurmountable scale and precision of war.

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