Active detection device

The utility model provides an active detection device comprising a detector housing, and an infrared detector, a laser detection assembly, a laser range finder, a white light observer and an active detection controller which are arranged in the detector housing and are connected with a power supply device. Detection lenses or observation lenses of the infrared detector, the laser detection assembly, the laser range finder and the white light observer extend out of the detector shell and are arranged towards the outside of the detector shell, and the infrared detector, the laser detection assembly, the laser range finder and the white light observer are in communication connection and/or electric connection with the active detection controller. The active detection device is simple in structure, convenient to mount and dismount, relatively low in cost, capable of actively identifying articles or equipment or people detected by the white light observer and the infrared detector and further accurately judging an