Faculty of Engineering

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    Prototype of Radio Frequency Identification Technology Utilization for Monitoring of BTS Room Using of IoT (Internet of Things) System
    (IEEE, 2019-11-28) Saragih, Y; Kurnia, F. E; Aji, S; Elisabet, A; Roostiani, H. A; Hafeel, A. A
    The level of battery theft in the BTS room often occurs. RFID prototype is used to open the BTS room is replacing the conventional key. To improve the BTS room security system, a vibrating sensor is used which is applied to the BTS room door, if anyone wants to break or damage the BTS room door by force then the alarm sounds, and use an ultrasonic sensor to detect whether there is a person or object in front of the BTS room, if a person or object is blocking in front of the BTS shelter ≤100 cm, the alarm will sound continuously. Also, the BTS shelter can be monitored via a smartphone as well as getting notifications both in email, smartphone and in the Blynk application.
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    Identification of the Impact on Road Roughness on Speed Patterns for Different Roadway Segments
    (IEEE, 2020-07-28) Abeygunawardhana, C; Sandamal, R. M. K; Pasindu, H. R
    Pavement surface condition is one of the factors that affect driver comfort, operation speed, service volume, and traffic safety. Even though several studies have conducted recently to find the effect of different roadway characteristics on traffic stream performance, not many were focused on the impact of road roughness on operating speeds. Therefore, this research will investigate the impact on road roughness on speed patterns for different roadway segments under different flow levels. The unevenness of a road is measured as road roughness and it has been globally accepted as a metric to evaluate the pavement condition and it relates to the conditions perceived by the road users. In addition to the user discomfort, rough roads would result in, speed reduction and an increase in vehicle operating costs. International Roughness Index (IRI) measured by smartphone application is used as the indicator for road roughness in this study. The effect of road roughness is investigated at Free Flow Speed (85 th percentile speed) and 50 th percentile speed which is determined using the speed distributions that occurred during specific time intervals. Further, the abovementioned behavior is analyzed separately for junctions, mid-block sections, and horizontal curves to represent different roadway conditions.