Research on Key Technology of Life Detection and Rescue Based on Augmented Reality Technology

In this paper, 3D positioning model was presented based on particular life detector in rescue. In this model, GPS receiver and 3D electric compass must be used in order to measure the position and direction information. It is necessary to get more than two sets of position and direction data to ensure the accuracy. The demonstration was done to verify the reliability of this model. The results showed that horizontal accuracy is less than 10 cm and vertical accuracy is less than 20 cm. Finally, this paper presented an assumption of Life Detection and Rescue System (LDRS) based on augmented reality (AR) technology and its preliminary implementation. The hardware of the LDRS may include life detector, GPS receiver, 3D electric compass and Head Mounted Display (HMD).The software of the system is based on improved ARToolKit. ARToolKit is one of the main AR development tools and is open source software, but it is based on computer vision techniques and is not able to receive the sensors data. So this paper proposed a new software framework which is able to receive the data from sensors such as GPS receiver and electric compass. With this system, the rescuer can “see” the survivor in the ruins with HMD and will improve the rescue efficiency greatly. The future work of this study will include two aspects. One is to improve ARToolKit to receive the sensor data, and so it can be used as a tool to construct outdoor AR system. The other is to accomplish the LDRS using the implementation this paper puts forth.