iosr-jmca   Volume-8 ~ Issue-6 ~ Nov. - Dec. 2021

ABSTRACT: The preference of preschool children on interactive traditional paper books has long been proved. More novel than the traditional interactive books, also called movable, mechanical or novelty books are the Augmented Reality books, which have a place in the book market for more than a decade now. In Greece AR books appeared in 2016 and they are considered young but very promising for educating and amusing children. The requirements for using AR books cannot yet meet those of mobile devices that most Greek readers have, thus their audience is still limited. Our approach to interactive books (traditional or AR) focus on the use and on learning and fun opportunities they have to offer to preschool children.

Key wards: Augmented Reality books; paper interactive books; movable books; mechanical books; early childhood education.

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ABSTRACT: The paper presents the research results of building a remote monitoring system of independent power stations in rural and mountainous areas in Vietnam, where there is no electricity and telephone reception. Wireless communication technologies were considered and LoRa was chosen. Monitoring system model includes monitoring station at independent power station and remote monitoring station. At the independent power stations, power parameters are measured for on-site display and sent via the LoRa protocol to the central monitoring station. The central station receives signals from independent stations and displays the operating status of these stations. Experimental models were built and tested in Vietnam Academy of Science and Technology

Key wards: LoRa, independent power station, IoT, LPWAN, LoRaWAN.

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ABSTRACT: PUC Measurement system is used to check Concentration of Carbon mono-oxide in vehicle. When person visit PUC center to gen PUC certificate, he has to check concentration of CO in vehicle. First he swap RFID card in front of RFID reader, this 12 digit unique code along with concentration of CO in % is sent to RTO office using GSM modem. GSM modem connected to central PC station receives this SMS. Vehicle information is saved in access database against unique RFID card. If concentration exceed above limit auto SMS will be send to PUC center that servicing required for vehicle. Do not allow to PUC certificate. In this line of thought, the proposed PUC measurement system is implemented using micro-controller using GSM & RFID......

Key wards: MQ-7 Sensor, GSM Module, RFID, PUC, Carbon Monoxide, RFID, NPVIS.

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ABSTRACT: The Internet of Things (IoT), which represents the connectivity of everything everywhere, and promises the tremendous technology in the coming years. In 2020 about 20 billion devices will be connected to cellular networks which is beyond the number of devices. In order to support massive access of Internet of things (IoT) devices the upcoming fifth-generation wireless network need the development of the cellular Internet of Things (IoT) . There are several LPWAN(Low power wide area network)-technologies that can be used to connect the product to the internet, so it can communicate with other connected devices. The main types of LPWAN are NB-IoT, LTE, Lora, Sigfox and NOMA. As the number of connected objects is expected to increase over the coming years, in order to improve the overall capacity of the cell while providing similar level of power consumption at the IoT.....

Key wards: IoT; LPWAN; NOMA; 5G.

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[5]. X. Shao, X. Chen, C. Zhong, J. Zhao, and Z. Zhang, "A unified design of massive access for cellular internet of things," IEEE Internet of Things J., vol. 6. no. 2, pp. 3934-3947, Apr.2019..

ABSTRACT: From a national economic viewpoint, earthquakes are the most destructive category of natural hazards in India. The economic losses to homes and personal property are major manifestations. India is highly vulnerable to earthquakes, in that scenario there is a urgent requirement for development of enhanced surveillance vehicles. In this paper, we describe the design and implementation of a sensor-based robot.With the use and integration of Ultrasonic sensors and PIR sensor on a common coding platform Arduino we were able to create a working disaster relief assisting robot which not only reduces complexity but is easily made and user friendly......

Key wards: Arduino ,Ultrasonic sensors , Surveillance vehicles , PIR sensor

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