Real-time post-disaster search and rescue method and system based on self-service sensor network

Abstract

The invention discloses a post-disaster real-time search and rescue method based on a self-help sensor network and a post-disaster real-time search and rescue system based on the self-help sensor network. The method comprises the following steps of: 1, generating strength adjustable medium and high frequency signals by a search and rescue signal transmitter; 2, receiving the medium and high frequency signals and converting the medium and high frequency signals into electrical energy by a distress signal generator, and driving the distress signal generator to generate medium and high frequency distress signals of specified frequency; and 3, performing seamless capture on the medium and high frequency distress signals and determining the azimuth and the distance of rescued personnel by a distress signal identification positioner. The search and rescue signal transmitter, the distress signal generator and the distress signal identification positioner are all based on medium and high frequency radio signals; compared with the conventional search and rescue system, the invention has the advantages that: the system is free from influence of the environment, the search and rescue measurement range can be enlarged, the measurement precision is improved, and meanwhile, the search and rescue efficiency is greatly improved; in addition, the energy of the radio medium and high frequency signals can be converted into the electrical energy, so the problem that the energy is used up is avoided.

Description

technical field [0001] The invention relates to a post-disaster real-time search and rescue method and system based on a self-service sensor network, belonging to the technical field of communication. Background technique [0002] In recent years, affected by factors such as extreme weather, earthquakes and engineering construction, various natural disasters have caused heavy casualties and property losses to human beings. Since the technical level of post-disaster emergency search and rescue is extremely important for reducing disaster losses, improving and perfecting the disaster relief system has received extensive attention from various countries. [0003] At present, there are mainly four types of search and rescue systems put into use at home and abroad: optical type, audio type, infrared type, and radar type. The optical search and rescue system uses a metal snake tube that can be bent arbitrarily so that the lens at the front can observe the situation under the ruin...

AI Technical Summary

Problems solved by technology

However, such electronic devices carried by rescuers are relatively large in size and are easily damaged when a disaster occurs; in addition, due to the interruption of communication after the disaster, the search and rescue system may not be able to function; If the signal cannot be covered, it will also affect the efficiency of search and rescue

[0005] In addition, the above-mentioned electronic products are not cheap, and it is impossible for everyone to carry them; the electronic devices that need to be carried by rescuers need additional power supply, and there is a problem of energy depletion. If the energy is depleted, then the ground search and rescue system will not be able to receive them. signal, will directly lead to a great reduction in search and rescue efficiency; in addition, in mine disasters, if the gas concentration is too high, a certain current may cause an explosion

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