Abstract
The number of child abduction cases in Indonesia today is always increasing every year, this has given concern to parents in leaving their children to play outside the home. Therefore, a device that can detect the presence of children when outside the home was needded. At this time, some devices can monitor ones location easily and quickly, such as Smartwatch and GPS Tracker, but the device must be connected to the internet With these conditions, it needs a device that can transmit information in real time without any dependence LoRa module are using low frequency radio as data transmission medium, can be built a Location monitoring prototype without connecting to internet network. From the examination results, the built system successfully shows the real time location coordinate point with a maximum data transmission limit of 2 KM for Line Of Sight (LOS).
Highlights
The child is a treasure that is so precious for parents, so the information about its becomes very important for the parents
Clild location monitoring system using LoRa with a frequency of 3-300 MHz, assuming LoRa module has a wide range with high efficiency of power usage
4.2 Non Line Of Sight (NLOS) The location for child location monitoring system that use NLOS scenario is in the Griya Bandung Asri Residence, Bandung, Indonesia
Summary
The child is a treasure that is so precious for parents, so the information about its becomes very important for the parents. By using GPS sensors, accelerator sensors and mobile GIS, this system can provide information to parents through messages displayed on android smartphone in the form of location when the child is lost This system is controlled by a GSM module that requires an internet connection to transmit its GPS data to related parties. While in the study of An Mobile Safety Monitoring System for Children [4], the child monitoring system uses Bluetooth technology as the child's location transmission media to be displayed on android smartphone This system is able to provide child's location information on child guard through Bluetooth communication that will give a sense of security to the parents when the children are in the observation area or not. The system which is built do not need the internet connection
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