"Go and sit in the car for a while..." Song Yan Shu's expression is somewhat different, or for Mu Qing Qing opened the door.

Just a moment after arriving at the car, song Yanshu turned up the warm air, and the whole atmosphere was very awkward. Mu Qingqing felt it was sultry, so she put out her hand and turned off the warm air. It was just the early autumn weather. Although it turned cold at night, it was not enough to turn on the warm wind. Within a minute, Mu Qingqing's forehead has exuded a thin layer of sweat.

Before Song Yanshu could speak, there was a sound of cars coming from the gate. It was a strange thing. Seeing Cheng Xi's car driving into the yard, Mu Qingqing pushes open the door and gets out of the car. Song Yanshu also follows.

"You..." Cheng Xi is surprised to see Mu Qingqing and song Yanshu at the door of his home. The first is why Mu Qingqing didn't go in. The second is how song Yanshu came back with Mu Qingqing.

It was later learned that it was Mu Qingqing who didn't have the key. However, when he heard the news, Chengqi couldn't help laughing. As he locked the door and walked to the door of the villa, he opened the door in front of Mu Qingqing and song Yanshu.

"So you didn't lock the door..." Mu Qingqing exclaimed, then shook his head and laughed. Song Yanshu was helpless.

Cheng Xi seems to be interested in closing the door intentionally, opening it, and repeating it several times. Then change to song Yanshu to try, the door was locked, completely unable to open. However, Chengqi just didn't use the key, so he closed the door. How could Chengqi open it, but song Yanshu couldn't open it.

"Fingerprint lock?" Song Yan Shu asked.

This time, he pointed to the seemingly ordinary door lock and said, "fingerprint lock is not safe at all. It's easier to steal fingerprints than to steal keys. It's always only for gentlemen, not for villains."

"Look here..." With that, Chengqi pointed to a very small black spot on the gate, which could only be seen clearly in front of him by being very close. It was only about one third of the size of a black sesame.

"This is a face recognition system. Compared with the computer system, it has the functions of face tracking and detection, automatic image size adjustment and infrared thermal detection. It is a relatively advanced biometric technology in foreign countries, but it is still immature, which is the stage of research and development. Mainly through the video stream to have a comparison of irrelevant, I adjusted, for personal home is enough. "

In this respect, he is an expert level expert. He talks about his professional field and speaks with pride and pride.

Then he waved his hand to song Yanshu, who was at a loss, and asked him to have a try. Sure enough, when song Yanshu stood in front of the door, he could not open the door in any case.

"When did you change this strange system, but my key can also open the door. If someone steals the key, isn't it just as unsafe?" Mu Qingqing didn't know that there was such a high-tech hidden in the door of Chengqi family.

Cheng Xi coughed twice and said in some embarrassment, "Qing Qing, in fact, next time you don't need to bring the key, because in fact, every time you open the door, it's not the key that plays a role. The key is actually idling in the door lock."

"What?" Mu Qingqing couldn't help being stunned. He felt as if he had been fooled. "You mean, when I opened the door before, it was all the face recognition you set up in the morning. That is to say, every time I try to turn the key in my bag, the door has already been opened already? "

He nodded in a strange way. Before Mu Qingqing lost his temper, he invited everyone into the room.

"Well, you've got something wrong with you, how dare you play with me!"

Mu Qingqing took a sip of water and asked, "how did you sample? I didn't seem to cooperate with you?"

"In fact, it's very simple. First of all, as long as you create a facial file, it's enough to help me complete the sampling!" Chengqi pointed to a small video surveillance device at the door of the living room, and then said, "the facial image file will generate a facial pattern code and store it in the server."

"Like fingerprints?" Song Yanshu sits on the sofa and interjects.

"Well, that's right." Nodding his head in a strange way, he said, "but the photo can't work. It has to be a three-dimensional portrait. The facial texture that has been entered into the server will become a source data for comparison. Through the system, more than 100 items of data such as face, skin tone, facial expression and posture can be identified and compared.

It will be completed in about five seconds. At present, the biggest problem for foreign research groups is this insurmountable five second barrier. They strive for real-time performance. The difference should not exceed half a second, so it has not been put into use.

But our family is different. These five seconds are too easy to be digested by some people's confusion, so I can use them

Mu Qingqing remembers her habit. It is because she likes to leave the key around every time, so the difference between the five seconds has never been found. Because the five seconds are not enough to find the key, the door lock has been opened for a long time. When Mu Qingqing turns out the key from her bag, she makes a useless move.

Thinking of this, Mu Qingqing couldn't help but stare into a strange look.

Song Yanshu was very interested in what Chengxi said and asked, "how did you get this technology? As far as I know, our domestic development in this field is still zero. "Cheng Qi said with a smile, "it doesn't matter. What's important is that I've successfully reduced the difference between five seconds to three seconds, but it's not stable and needs to be tested. The current biometric technology in China is mainly interrogation and iris. In fact, the application of smart home is enough. In terms of security, the whole level will be reduced. "

"It seems that your company is only two seconds away from going public?" Song Yanshu's eyes on Chengxi became deep. He always looked at Chengxi differently, but he didn't think that his ability was immeasurable.

"Ah?" Mu Qingqing looks at Chengxi and song Yanshu in a daze. He doesn't know anything about this kind of professional technology. If someone asks her what her company's main business and content is, she probably won't answer it perfectly.

However, all of these are under the control of Chengqi. From this short period of seven to eight years, Chengqi has been able to turn a small company with a registered capital of less than one million into a company with a market value of over 100 million and a large scale. It is a matter of great importance for the business community of Jiangcheng.

However, due to Cheng Xi's low-key work in recent years, he has not been as concerned as others in the field of public vision.