iBaby: A low cost BLE pseudolite based indoor baby care system

摘要

Babies have the ability to crawl, walk and climb between 6 months and 2 years of age, but they cannot speak languages. As a result, babies at this stage are unpredictable and their parents are unable to control their actions. Some places in the home are potentially dangerous to them. Parents cannot keep an eye on them all the time. There is a risk of injury when babies enter dangerous areas themselves. In this article, we propose iBaby, a low cost BLE pseudolite based indoor baby care system. Pseudolite, which consists of an MCU and multiple Bluetooth chips, along with navigation messages and an UKF based positioning engine, can achieve positioning accuracy better than 2 meters and a positioning response of 10 Hz. The system consists of pseudolite, server, client (parent and baby). It can run on the public mobile phone. Users do not need extra work, boot to use. Experiments show that the system can accurately locate the babies in the room and promptly remind their parents when the babies enter the dangerous area, which effectively reduces the possibility of the babies being injured.