The design scheme of door security system based on ARM9 was presented.

提出了一种基于ARM9处理器的快速人脸检测门禁系统设计方案；

youdao

Oh, you should lock the door and keep the security system open when you leave your home, but I think it's not so serious.

哦，当你离开家的时候要锁好门，并且打开安全系统。但是情况不是这么糟糕。

youdao

I do intelligent household security system by gas sensor, infrared sensor, televox body sensor, door magnetic switch components.

我所做的智能家居安防系统由煤气传感器，人体红外传感器，声控传感器，门磁开关等部分组成。

youdao

At night and on weekends, when its 75 young customers weren't around, the center installed new chairs, desks, floors, fixtures and a biometric security system that allows parents in the door only after they place a finger on a sensor.

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From the main road to the front door, the area surrounding the property is lined with paver stone and protected by a gated entry and security system.

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