Wireless harness inside ICT equipments

摘要

We have been investigating point-to-multipoint wireless communication suitable for the use inside ICT (Information and Communication Technology) equipments to accommodate demands for weight saving, environmental lifecycle CO2 reduction and improvement of assembly/ maintenance efficiency by means of replacing communication wire harnesses with wireless technology, i.e., wireless harness. Through the radio propagation measurements inside four equipments of automatic teller machine (ATM), ticket vendor, vending machine, and printer, a consistent specification applicable to them has been determined. Based on this specification, a test wireless system has been developed. It showed good performance even inside the ATM, that has the most lossy environment among the four equipments we tested.