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Laboratory measurements of electromagnetic field inside motorcycle helmet with installed Bluetooth communicator

Gombarska Daniela, Psenakova Zuzana, Carnecka Lucia

Przegląd Elektrotechniczny

2021

R. 97, nr 6

56--59

The main objective of the paper is to evaluate the electromagnetic field (EMF) within the motorcycle helmet with a Bluetooth communicator. Under laboratory conditions, the measurement was carried out using two helmets with integrated Bluetooth communicator set in intercom mode. The distance of the helmet was set to 500 mm without communication, the same distance with communication and the distance set to 2500 mm with continuous communication and BK PRECISION 2650A spectral analyzer together with Rohde & Schwarz used as a measurement set-up.

Głównym celem pracy jest ocena pola elektromagnetycznego wewnątrz kasku motocyklowego z komunikatorem Bluetooth. W warunkach laboratoryjnych pomiar przeprowadzono z wykorzystaniem dwóch kasków z wbudowanym komunikatorem Bluetooth ustawionym w trybie interkomu. Odległość pomiaru ustawiono na 500 mm bez komunikacji z kasku, taką samą odległość z komunikacją z kasku oraz odległość ustawioną na 2500 mm z komunikacją ciągłą. Jako stanowisko pomiarowe wykorzystano analizator widma BK PRECISION 2650A firmy Rohde & Schwarz.

Design of a Head Movement Navigation System for Mobile Telepresence Robot Using Open source Electronics Software and Hardware

Wee Tan Jia, Wahid Herman

International Journal of Electronics and Telecommunications

2021

Vol. 67, No. 3

379--384

Head movement is frequently associated with human motion navigation, and an indispensable aspect of how humans interact with the surrounding environment. In spite of that, the incorporation of head motion and navigation is more often used in the VR (Virtual Reality) environment than the physical environment. This study aims to develop a robot car capable of simple teleoperation, incorporated with telepresence and head movement control for an on-robot real-time head motion mimicking mechanism and directional control, in attempt to provide users the experience of an avatar-like third person’s point of view amid the physical environment. The design consists of three processes running in parallel; Motion JPEG (MJPEG) live streaming to html-Site via local server, Bluetooth communication, and the corresponding movements for the head motion mimicking mechanism and motors which acts in accordance to head motion as captured by the Attitude Sensor and apparent command issued by the user. The design serves its purpose of demonstration with the usage of basic components and is not aimed to provide nor research with regards to user experience.