[Indoor positioning] (1) WLAN: available resources can be used, and technology to improve accuracy and support iPhone has appeared
There are more and more examples of indoor positioning technology being adopted, and the technology is about to enter the popularization period. Through the empirical tests carried out before, the technical issues that should be solved have been clarified. Among them, the technology to improve positioning accuracy and enable any smartphone to receive is the key.
Technologies that can achieve indoor positioning include WLAN (wireless local area network), sound waves, visible light communication, and IMES (Indoor Messaging System). Including experimental services, all of the above technologies have been installed in commercial facilities, and indoor positioning technology is about to move from dawn to popularity (Figure 1).
Figure 1: Setting examples and technical changes of indoor positioning technology
Indoor positioning technologies such as WLAN, visible light communication, sound waves and IMES are beginning to be adopted. With the advancement of use, it has also begun to implement improvements in technology, such as improving positioning accuracy and supporting universal ucode.
It is still at the dawn of the technology, and the ease of introduction is the key to its adoption. The easiest to introduce is WLAN indoor positioning, because the signal transmitter can use the existing WLAN base station, which can reduce the initial investment of the facility. The second is acoustic indoor positioning. Because it can receive signals with a microphone, most smartphones support it. Although a new signal transmitter is required, the cost of introduction is relatively low.
The remaining visible light communication and IMES must now be equipped with new signal transmitters, and smartphones are not equipped with receiving functions. However, this situation should gradually change. In the future, if a significant effect can be obtained in each commercial facility, a certain amount of initial investment will also be made in the facility. And by then, the smartphone is likely to be equipped with a receiving function.
If the support for the transceiver is the same, the focus of competition will shift to positioning accuracy. All-round competition will start from this, starting the intensification of technology. In addition, just as visible light communication is used in amusement facilities, it is expected that the situation of reasonable utilization according to needs will increase.
WLAN articles
Not only can the signal transmitter use existing WLAN base stations, WLAN has also become a standard feature on smartphones as signal receivers, so at present, the threshold for the introduction of WLAN indoor positioning technology is the lowest. These advantages have been well received and have been used in GRAND FRONT OSAKA.
GRAND FRONT OSAKA only uses WLAN base stations for communication, and no new base stations for positioning are added. Since it is a WLAN base station set according to the user's action route, it is also easy to use it for positioning.
The positioning method is the same as three-point positioning such as GPS. Receive the radio waves of multiple WLAN base stations with a smart phone, and calculate the location while comparing the information such as the MAC address and radio wave strength of each WLAN base station with the database.
GRAND FRONT OSAKA obtains the user's action records in the facility through WLAN-based positioning. At the same time, combined with the personal information collected by digital signage and purchase records, etc., the user is divided into 12 types (Figure 2), and then according to the user's type and Location information provides users with useful information, thereby attracting customers to go shopping. In addition, it is also intended to promote the connection between users of the same type through the above classification, for example, you can refer to the shops and information recommended by users of the same type.
Figure 2: Judging the user type based on location information
GRAND FRONT OSAKA introduced the "Compass Service", which divides users into 12 types based on user action records and digital signage usage records obtained by WLAN positioning, and sends the most appropriate information to all types of users.
Digital signage uses the ID of a contactless IC card to manage personal information, and can also be associated with information on a smartphone. Questions on digital signage include "Who do you live with?", "What type of person are you?", And so on. Sometimes it will change to the type of the previous user based on the accumulated information and adjust to other user types.
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