Browsing by Author "Mariki, Christina"

Now showing 1 - 2 of 2

Automatic Railway Road Crossing (RLC) Traffic Light System for Metric Gauge Railway Network in Tanzania
(International Journal of Advances in Scientific Research and Engineering (ijasre), 2021-11) NKUNZIMANA, Libere; Minja, Gilbert; Mariki, Christina; Zirakwiye, Innocent; Mduma, Neema; Dida, Mussa
The verdict has been established that Railway Level Crossings (RLCs) present a possible risk to roads users. Because of the ever- increasing number of vehicles on the road every day, it was determined that employing automation at level crossings can be beneficial to both road and railway users' safety. The aim is to develop an automated railway level crossing system that would reduce the likelihood of collisions between trains and road users at intersections. From the perspective of a railway level crossing, the conditions safeguards must meet is straightforward - Before a train passes, there must be a complete stop for all road users. Two RFID sensors and Ultrasonic sensors are used located at strike-in and strike-out points at the level crossing. Detection of automobiles stuck on the rail road once the train has activated the automation at the RLC is performed by the Ultrasonic sensor. Other warning measures in the system include an automated barrier, Light Emitting Diode flashing lights, and an audio alarm device. Arduino UNO and ESP32 were used as microcontrollers to perform all the logical operations and control commands. Consequently, the next train station from RLC was updated of the incoming train’s Expected Time of Arrival (ETA). The time it takes for the barriers to close will be determined by the train’s speed. In this project work, the prospective application strategy for securing rail road crossings are described in detail. It is the best feasible control of the level crossing by using the train detection system
Fetal heart beat rate monitoring support device for pregnant women diagnosed with mild pre-eclampsia/hypertension in Tanzania
(NM-AIST, 2022-07) Mariki, Christina
The standard care for pregnant women in Tanzania is done in health facilities. The fetal heart rate monitoring among other things is done during scheduled antenatal clinic visits. High number of still birth caused by timely and inaccurate fetal heart rate monitoring is one of the major concerns in the management of those diagnosed with mild pre-eclampsia throughout their pregnancy. Pregnant women in the low income countries ,at gestational age of 28+ weeks are at high risk and require to perform fetal heart rate monitoring frequently. Therefore, the automated tool for self-monitoring of fetal heart rate remotely is of high need to save both the life of the mother and the unborn child. A mixed method was used to identify and gather requirements for fetal heart beat rate monitoring tool. Agile methodology was used to design the prototype of the fetal heart beat rate monitoring device. This study observed that, 54% of the pregnant women conducted their own fetal heart rate monitoring through charting fetal kicks manually. In addition, the fetal heart beat rate monitoring device has been developed to sense and record in real-time the fetal heart beats and pregnant women’s heartbeat. Apart from that the belt has also succeeded to record the temperature, location using GPS of the pregnant woman. Using GSM module and the Blynk Application the captured information is sent to the patient and health facility for monitoring purposes. In implementation of this study, it avails raise of awareness on the importance of continuously monitoring the fetal heart beat rate for pregnant women with hypertensive condition during pregnancy in communication with the health facility- medical personnel.