Centralized indoor positioning system using bluetooth low energy

Locating objects or people in an indoor environment quickly, accurately and at low cost is a great need nowadays and in different scenarios. Some examples are the location of products in a warehouse or the quick location of patients, medical personnel or equipment in a hospital. A location system is necessary for health care, home care, stock control or inventory. In this context, this paper presents the design and implementation of a low-cost centralized indoor location system that uses BLE technology (Bluetooth Low Energy) together with the particle filter algorithm. Experimental results show that the system can achieve an accuracy of 1.8 m, at best, with an accuracy of 74% within 3 m. The cost of the infrastructure goes hand in hand with the number of objects or people to be located.