Unmanned aerial vehicle fire scene sound wave rescue system and method

Abstract

The invention discloses an unmanned aerial vehicle fire scene sound wave rescue system and method. The system comprises an ultrasonic ranging unit, an ultralow frequency detection unit, an infrared human body recognition unit and a wireless transmission unit. The ultrasonic ranging unit comprises an ultrasonic detection module and emits ultrasonic waves to detect a fire scene environment; the ultralow frequency detection unit is used for detecting ultralow frequency signals generated by heartbeat of a human body in a fire scene; the infrared human body recognition unit comprises an infrared imaging module, a human body segmentation module and a target selection module, the infrared imaging module forms an infrared image, the human body segmentation module segments a human body from a background, and the target selection module performs target selection in the segmented human body; and the wireless transmission unit is used for transmitting the detection result to the firefighter through a wireless network. Human body recognition is carried out on a fire scene through infrared imaging, high-temperature interference is eliminated through ultrasonic ranging to detect terrain, inventory personnel are determined through ultralow frequency detection, information is transmitted to firefighters, and rescue efficiency is improved.

Description

technical field [0001] The invention relates to sound wave ranging and belongs to the field of unmanned aerial vehicles. Background technique [0002] Among various disasters, fire is one of the main disasters that most frequently and commonly threaten public safety and social development. With the continuous development of society, while the social wealth is increasing, the risk of fire is also increasing, and the danger of fire is also increasing. According to statistics, the average annual fire loss in my country in the 1970s was less than 250 million yuan, and the average annual fire loss in the 1980s was less than 320 million yuan. In the 1990s, especially since 1993, the direct property losses caused by fires rose to an average of more than one billion yuan per year, and more than 2,000 people died each year. Practice has proved that with the development of society and economy, the importance of fire protection work is becoming more and more prominent. Studies have ...

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Problems solved by technology

[0004] It is difficult for firefighters to pass through all passages in the fire scene, and the travel route is easily hindered by the environment. At the same time, due to the low visibility and complex environment of the fire scene, it is difficult for firefighters to accurately identify the environment. These objective conditions are not convenient for firefighters to search and rescue trapped people

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