Induction type automatically photographing digital camera and automatically photographing method thereof

Abstract

The invention discloses an induction type automatically photographing digital camera and an automatically photographing method thereof. The digital camera comprises a photographing lens (1), a first thermoelectric infrared sensor (2), a second thermoelectric infrared sensor (4) and a first Fresnel lens (3) which is arranged in the forefront, wherein the capture region of the photographing lens (1) is completely covered on the induction region of the first thermoelectric infrared sensor (2); the induction region of the second thermoelectric infrared sensor (4) is completed covered on the capture region of the photographing lens (1); and the first Fresnel lens (3) is covered on the induction region of the second thermoelectric infrared sensor (4). Compared with the prior art, the method enlarges the total induction region of the thermoelectric infrared sensors to save the preparing time of waking up the camera, so that the required time from the first thermoelectric infrared sensor inducing a moving target to the camera photographing the moving target is greatly reduced, and the moving target is ensured to be positioned in the capture region of the photographing lens, thereby ensuring that the moving target is positioned in the center of the picture.

Description

technical field [0001] The invention relates to the technical field of digital cameras, in particular to an inductive automatic photographing digital camera and an automatic photographing method thereof. Background technique [0002] The pyroelectric infrared sensor (PIR) can detect the infrared rays emitted by people or some animals and convert them into electrical signal output, and the Fresnel lens is made according to the Fresnel principle, which divides the infrared rays into visible areas and blind areas, and at the same time It has the effect of focusing, which greatly increases the sensitivity of the pyroelectric infrared sensor, and the two are widely used in inductive automatic camera digital cameras. Such as figure 1 , image 3 , Figure 4 and Figure 5 As shown, in this digital camera, a photographic lens 1' (lens for short), a pyroelectric infrared sensor 2' (infrared sensor for short) and a Fresnel lens 3' are provided, and the image capture area of ​​the l...

AI Technical Summary

Problems solved by technology

For hunting in the wild, if the animal runs very fast, the animal may have deviated greatly or ran out of the capture area of ​​the camera (that is, the C'D' area) during this period of time, causing the camera to capture In the image, the animal target is only at the edge (such as image 3 as shown), making the image look very unclear, or only half of the animal is captured (such as Figure 4 shown), and even did not capture animal targets at all (such as Figure 5 shown)

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