Opportunistic communication method for mobile smart terminals for emergency search and rescue

Abstract

The invention provides a mobile intelligent terminal opportunistic communication method for emergency search and rescue. Quick collection of information of survivors and sharing of information of search and rescue staff are achieved transparently without any communication infrastructure in the mode that hot spot networking and wireless portable router networking are combined. The method provides unified network naming rules and avoids energy consumption and potential safety hazards caused by interference from unrelated networks. The information of the survivors is collected as priority by defining network access priority, and consequently conditions are provided for quickly positioning and rescuing the survivors. By means of the method, various kinds of data can be simultaneously transmitted and distributed, and therefore the requirements for collection and sharing of all kinds of data in a complex search and rescue scene are met. The method can be applied to search and rescue of the survivors and field data sharing in natural disasters such as earthquakes, mud-rock flow, floods and typhoons and man-made disasters such as production accidents, thereby having great practical significance in emergency rescue at present.

Description

technical field [0001] The invention relates to an opportunistic communication method for mobile intelligent terminals oriented to emergency search and rescue. Background technique [0002] In some harsh environments for emergency relief, due to the fact that they are located in areas without mobile phone signals or the communication base stations have been damaged, traditional mobile phone calls, text messages, GPRS, etc. have failed, and search and rescue personnel cannot communicate with survivors buried under the rubble. Effective information exchange. [0003] Traditional emergency search and rescue communication solutions often use Bluetooth, wireless sensor network and other technologies to achieve short-distance communication, but there are shortcomings: [0004] Bluetooth: In practical applications, the transmission range of Bluetooth is relatively short, and only a single-hop connection can be achieved. In addition, the security mechanism of the Bluetooth standar...

AI Technical Summary

Problems solved by technology

[0004] Bluetooth: In practical applications, Bluetooth has a short transmission range and can only achieve a single-hop connection

In addition, the security mechanism of the Bluetooth standard requires manual confirmation by the user during the transmission process, and transparent information exchange cannot be achieved.

[0005] Internet of Things wireless sensing technology: In practical applications, there are problems that cannot be ignored in emergency rescue based on wireless sensors. For example, the collection of signs requires survivors to carry medical sensors in advance and assume that they are already in use, but this is usually not realistic; using sensors Survivor positioning on the network requires the deployment of multiple anchor nodes. In large-scale disaster scenarios, large-scale networking is required, which not only takes a long time, but also costs a lot; using wireless sensor networks to build emergency communication facilities requires multi-hop data Transmission, at the current technical level, its stability cannot meet the high reliability needs of emergency rescue communications

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