Use of IoT network and IoT ranging device for a navigation and protection system

A navigation and protection system (NPS) used by an object in a smart environment comprising:

• a master Internet of Things (IoT) device to communicate with an IoT network and obtain a time of day (TOD) and an operation information data (OID) that includes an absolute time and a time slot window for the NPS;
• said time slot starts at the TOD specified by said absolute time and has a structure that consists of at least one of a ranging window, a communication window, and a guard time;
• a plurality of slave IoT ranging devices to transmit a ranging signal and receive a reflected ranging signal during said ranging window within said time slot specified by said NPS and obtain a detected information data (DID) related to the objects in the smart environment;
• a controller in a central processor unit (CPU) to manage said navigation and protection system and to:
• synchronize with the master IoT device to obtain said TOD and said operation information data;
• share the operation information data and the TOD with a slave IoT ranging device within said plurality of slave IoT ranging devices;
• record said detected information data provided by said slave IoT ranging device within said plurality of slave IoT ranging devices;
• and
• feed said operation information data and said detected information data to an algorithm that is executed by the controller;
• said algorithm uses said operation information data and said detected information data to:
• assess the smart environment parameters;
• activate a protection device used by said NPS when an impact is imminent;
• activate a navigation device to avoid the impact;
• or
• update the operation information data and send it to said slave IoT ranging device through said controller.