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The National Land Surveying and Mapping Center (NLSC) of Taiwan’s Ministry of the Interior is using RFID technology to confirm land survey maps in an office in Taichung. Although the NLSC has electronic versions of some maps, survey maps prior to 1989 are only available in paper versions.
There are a total of more than 200,000 paper-based registration maps stored in this place, and lawyers, real estate agents, etc. usually consult these maps. These maps are usually pasted or stacked in shelves. The system is provided by EPC Taiwan and uses handheld and fixed readers, passive UHF tags, an RFID printer encoding machine, and software for managing read data and transferring data to existing management software .
(NLSC pastes the Alien ALN-9720 label on the spine of each map binder)
For Taiwan, maintaining cadastral records has always been a complicated and confusing issue. This is due to historical reasons that the boundaries of private territories have been redrawn many times. During the Japanese occupation, an investigation and confirmation of the territorial boundary was carried out, and most of the land was re-investigated since then. As a result, the territorial boundary problem caused by the different results of multiple investigations has become the source of a conflict of laws. NYSC was established in 1947 and has been investigating, inspecting and electronically surveying the land on the treasure island. At present, about 30% of the land still needs to be surveyed to complete the cadastral mapping.
TH Liu, president of EPC Taiwan, said that the positioning of paper maps is a big problem. At first, the organization classified and stored the drawings based on the numbers of the drawings, but this method is difficult to carry out inventory counting. It has been confirmed that all the maps are on site (it takes a long time). Therefore, the agency contacted EPC to develop an RFID system to quickly confirm the map location, conduct daily inventory and record loan returns.
EPC helps NLSC use Zebra R110Xi4 encoder to encode labels. In total, the two companies have encoded more than 200,000 ALN-9720 tags, which are attached to the upper right corner of the map and stored binders. The size of these maps is usually 30cm*40cm, and a small part is 60cm*80cm. Liu said that the company tested the tag’s read rate before attaching the tag to confirm the best location for the tag to be attached. In the end, the company chose the top of the map or the binder so that the staff could read them with a reader. These labels are connected using acid-free glue.
EPC also provides software to read the tag ID during inventory counting and loan return. When a certain map is needed, the staff needs to use the ATID AT870 handheld reader to find it on the shelf and bring it to the lending station. On the lending station is placed an Alien ALR-9650 reader with a built-in integrated antenna for reading tags. ID and send it to the software to indicate that the map has been borrowed. Next, the staff enters the name of the lender. When returning, the countertop reader will read the tag again and indicate that the map has been returned.
In addition, staff will regularly carry hand-held readers for inventory counting. The software will record the ID of each tag and list the maps that may be lost. The software will also transfer inventory data to existing map management software.
(There are more than 200,000 paper-based maps stored on the shelf of the National Land Surveying and Mapping Center of Taiwan.)
In 2012, the solution tested 6,000 tags, a handheld reader, and a separate software. Since then, EPC and NLSC have started attaching tags to all maps, installing loan-to-return countertop readers, and integrating RFID software with existing software. The system was put into use in January 2015.
NSLC expert Feng-Ming said: “With this system, the search time is shortened, and inventory information is more timely and accurate.”
(Exclusive manuscript of rfid world network, please indicate the source author for reprinting!)
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