It is difficult to identify individuals in national parks. From a wide range of characteristics and no GPS signals in some areas, the reforehware is selected as a laura transceiver that can work in a wide area, which in Thailand allows for 433 and 915 MHz frequency signals. This system can add a gateway to connect to the transmitter to apply the value from the location of the Internet send up to calculate the location and apply it to the area where the calculated position can continue.<br><br>Keywords : Laura, Laura Transceiver, Localization, Trilaterity, Location
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