| In recent years, domestic and foreign often happen major natural disasters, wenchuan earthquake, qinghai jade tree earthquake, boat song super-large debris flow, Japanese earthquake and tsunami, triggered wenzhou move cars piled up, the ore difficult accidents, disaster we still fresh. These natural disaster or man-made accidents often hit human homes, take the life of many compatriots. So, the research of advanced detection for disaster relief equipment life rescue provide strong help.Paper designed a kind of infrared, ultrasonic composite life detectors, it is by the infrared detection technology and ultrasonic detecting technology of combining the modern advanced detection instruments sign of life. It is used widely life detector is using a single search way to search for the men. But the actual rescue, the environment often very complex, rely on a single technology life detectors effects are limited, if combined with detection means will to achieve better effect. In this paper, the ultrasound compound of infrared detectors are pioneering design life combined with the infrared detectors, ultrasonic two detection method. Composite life detectors work, both independent exploration, through the conversion switch and a common screen connected, the detection results can switch at any time. Infrared detection and ultrasonic detection on the function has its advantages and disadvantages, can complement each other.This paper makes a detailed design of the infrared detectors and optical system, life infrared detector and electronic circuits, but also increase the temperature compensation system, to improve the existing infrared equipment vulnerable to environmental temperature on the defects. Ultrasound part the ultrasonic detecting life design general structure, ultrasonic frequency, probes and sensors do reasonable option, and the detailed design of ultrasonic pulse drive source produce circuit, launch system circuit and the receiving system circuit. The composite life detectors do the overall design and choose the suitable display device. |
