Land boundary post (landmark) detector using radio frequency identification technology and GPS

ABSTRACT

In Thailand, the position identification of the land borderline are used the land boundary post (landmark) with the post ID number (issued by Department of Lands) to point out that the edge of the land. Thus, all land must have the landmark. Over the time, the reclamation of land or construction of the building, the landmark are often buried with some material such as soil, wood, and concrete. In the case of landowner wants to survey the land. The officials of land Department will survey the land. Land surveying is carried out by using technique: to reference with near landmark and to put the new landmark on the surveying land. The officials often cannot find the original landmark because of the landfilled on that. As a result, the officials have to dig or use other methods to find the original landmark. Such situation, it was consumed extremely time to survey of the land.
From the above issues, this research proposes the concept to apply modern technology to solve that problem. The researchers have selected a radio-frequency identification technology, which is currently important technology and practical applications in various fields. The solution of this research was presented the design and fabrication of boundary of boundary post (landmark) detector using frequency and GPS. This will be attached the passive radio-frequency identification tags to the landmark. The proposed detector was used to find the landmark which was buried under soil or landfill materials. If found that landmark, it will show the notification sound, post ID number and location at the LCD display. Consequently, there is more convenient and time-saving than traditional search. The proposed detector can be divided into 4 parts: the identifying part, the positioner part, the controller part, and the display part. The frequency of identifying part is 125 KHz
The experiments of the proposed detector to find the post are test with four types of landfill materials: dry soil, wet soil, concrete, and wood (the thickness of the material in landfills is 20 cm). The experimental results showed that the performance of prototype in accurate identifying of the land boundary post is 100 percent.