▎ 摘　　要

NOVELTY - The detector has an infrared sensor, a telescopic mechanical arm, a signal processing unit and an alarm. The infrared sensor is fixed at the front end of the telescopic mechanical arm. The infrared sensor and the alarm are respectively connected with the signal processing unit. The infrared sensor is a regular icosahedron structure consisting of triangles. The signal processing unit controls the infrared sensor probe to open, after the telescopic mechanical arm extends into the ruin detection depth. The detection module is composed of a semiconductor substrate and a graphene film to realize detection, after the light to be detected is filtered by the filter layer, and converts into optical current signal. The signal processing unit compares the size of the light current with the threshold value. An alarm is controlled to give an alarm, when the magnitude of the photocurrent is larger than the threshold value. USE - Graphene-based life detector. ADVANTAGE - The infrared detector formed by the Schottky junction of the graphene/semiconductor has higher sensitivity to infrared light. The multilayer graphene has strong chemical inertness, after being sintered at high temperature, so that the multilayer graphene is suitable for various environments. The multilayer graphene-based infrared sensor and the signal processing unit are integrated on a regular icosahedron structure consisting of triangles, so that the light receiving area and the photoelectric signal processing accuracy are increased, and the blind-corner-free search in the ruins is realized. DESCRIPTION OF DRAWING(S) - The drawing shows a Raman view of a graphene film of a graphene-based life detector.