A wireless escape system for industrial accidents using Ad Hoc positioning

The safety of producing is a very important thing in the industry. But in some dangerous factories e.g. coal mines, circumstances are not allowed to deploy wires. So we bring in the Ad Hoc wireless sensor network to measure the key physical elements in the workshop. As soon as there are some signs of the accident or the accident has just happened, the system will know it and give the alarm to workers. Our system uses the AOA (angle of arrival) method with the RSSI (Received Signal Strength Indicator) filter to get the position of workers. And we propose an improved divisional Dijkstra algorithm to calculate the escape way for the first time to our acknowledgment.