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From technology specific coordinates, position, and navigation in building proposed above, which contains. Techno-Lee Yi NFC technology wifi location, ibeacon technology of Ultra Wide Band technologies and apple, which can be summarized by two separate according to the behavior of the system.The first NFC technology group and a iBeacon of Yi khalo Porcupine salad but need a sensor node or tag that is a positive or negative number is makkrachai send a signal across all areas inside the building to coordinate data to the receiver, such as a mobile phone by today. Only some versions of smartphone that supports this usage, but in the current module is installed Iphone6 NFC and iBeacon makes it possible to use both systems, but ibeacon will have more flexibility because the term beyond the users do not need to remove the device come together like the NFC.The second group of Ultra Wide Band location with wifi, which is a technology that calculates the position of the signal level measuring device that is discharged from a WiFi Setup will be able to use data from access point installed in various locations used. Best Ultra Wide Band signal transmission device must be installed only on Ultra Wide Band, there will be greater precision, WiFi Location because of the signal's frequency district can pass to break through walls to better precision in the calculation of the position better than WiFi, but there are Wide Band technologies Ultar costs higher.When comparing the two technologies, and you will see that the second group will have the flexibility to run higher than the first phase nueng in broader usage. Can use the same GPS technology is suitable for large systems with many users, but the system's cost is higher than the first was. The first section is for areas that are not very large because the tag or device must be installed to send large amounts of data inside the building, but the system is cheaper and suitable for high precision system.
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