WIRELESS TAG SYSTEM USING AN INFRARED BEAM AND AN ELECTROMAGNETIC-WAVE FOR OUTDOOR FACILITIES

A wireless tag system has been designed and developed for maintaining and managing outdoor communication facilities. This system employs an infrared (IR) beam and an electromagnetic wave with a radio frequency (RF), and is constructed using IR-RF tags, an IR commander, and an RF receiver. The IR command radiation with strong directivity enables a m aintenance operator to recognize a target facility, and the RF respons e without directivity enables a management system to obtain data from within a large circular area. Solar and secondary batteries are also a dopted as the power module in the tag to allow easy maintenance at lon g intervals. IR signal communication is possible up to a distance of 9 m, and RF signal communication is possible within a circle with a rad ius of 9 m.