Facial recognition intelligent lock
A face recognition and smart lock technology, applied in the field of smart locks, can solve the problems of not being able to meet the requirements of smart home intelligence level, inconvenient, and incapable of alarm processing, etc.
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Embodiment 1
[0050] see Figure 1-4 The present invention provides a technical solution: a facial recognition smart lock, comprising: a smart lock body 10 , an image acquisition unit 30 , an FPGA chip 40 , a wireless communication module 80 and a PC terminal 60 .
[0051] In this embodiment, specifically, the smart lock body 10 is a structure of the prior art, and details are not described here.
[0052] In this embodiment, specifically, the FPGA chip 40 can implement image processing algorithms in hardware, and its parallel operation mode can process a large number of data streams at high speed, which is very suitable for processing image data. (Field Programmable Gate Array) is the main chip. Specifically, a soft core can be used inside the FPGA chip to implement a customizable processor CPU structure. In addition, the entire hardware circuit of the device can also add image processing hardware circuits and external auxiliary modules written according to image processing algorithms.
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Embodiment 2
[0084] see Figure 5 , the present invention provides a technical solution: a working mode of a facial recognition smart lock, comprising the following steps:
[0085] S1. Whether the door lock is connected to the PC terminal and the security processing system through the wireless communication module, if the judgment result is yes, that is, the smart door lock is connected to the PC terminal 60 and the security processing system 70, and the user is operating the door lock remotely, then enter the interconnection mode ;
[0086] S2. Obtain a frame of image from the high-definition camera, and then perform noise reduction processing through the image noise reduction circuit to improve the recognizability of the image;
[0087] S3, according to the face recognition algorithm, extract the face feature value in the obtained image, and compare the value with the feature threshold value preset inside the storage module;
[0088] S4, judging whether the collected image matches the ...
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