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RFID Sensors Help Macau Museums Protect Art and Artifacts
The technology, installed throughout several of the region's historical museums, measures temperature and humidity levels to ensure exhibited items are not exposed to damaging heat or dampness.
Mar 27, 2013—
Several museums are employing a new RFID-based environmental-monitoring system that tracks the conditions around its artifacts. The solution was created by Hong Kong RFID Ltd., a hardware manufacturer, distributor and consultancy firm that provides radio frequency identification solutions. Although the museums asked to remain unnamed, they are owned and operated by the Instituto Para Os Assuntos Civicos E Municipais (IACM), Macau's Civic and Municipal Affairs Bureau.
The museums' artifacts and artworks are often hundreds or thousands of years old. Some are fragile and could be damaged by excessive heat or the presence of any moisture. In Macau, which has a subtropical climate, the air humidity level is often between 75 and 90 percent. As such, climate control to protect the artifacts is especially vital. Last year, the museums opted to install Hong Kong RFID's 2.4 GHz RFID sensor tags and readers, in order to automate the collection of data regarding those conditions, and thus receive real-time notification in the event that the conditions pose a threat to the items on display.
The museums installed Hong Kong RFID's Tempcorder Moist Tags (model number HKRAT-HT02) within display cases, or on walls or pedestals near exhibits. The battery-powered tag, which measures 52 millimeters by 30 millimeters by 4.5 millimeters (2 inches by 1.2 inches by 0.2 inch), comes with built-in temperature and humidity sensors. The tag transmits sensor data, along with its own unique ID number, via a proprietary air-interface protocol. The museums mounted Hong Kong RFID's Empress readers (model HKRAR-EMWF) on walls, counters or desktops. The HKRAR-EMWF, measuring 125 millimeters by 108 millimeters and 26 millimeters (4.9 inches by 4.3 inches by 1 inch), captures a tag's signal and transmits that data to Hong Kong RFID software residing on a standalone system onsite, via the museum's Wi-Fi connection. (The reader can also send information via a cabled connection, if a museum prefers.) In some cases, museums are also employing an Empress handheld reader, if users want to confirm a tag's temperature and humidity measurements.
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