Near the year, many city strugglers are preparing to go home for the New Year. At this time, it is also the peak period of the house theft case. There have been several cases of theft in the author's community. In order to avoid regrets afterwards, take precautions and let the city " Home is safer in the temporary departure phase. From the anti-theft artifacts recommended by netizens, the following varieties are selected for readers' reference: 
Smart cat eye
It integrates the functions of the doorbell and the cat's eye, and increases the role of monitoring and talking, and is not easily embarrassed compared to the traditional cat's eye. There are many types of smart cat eye products on the market. It is worth reminding that most products have problems of low resolution and short standby time. When selecting products, attention should be paid to the details.
Currently, the most advanced smart cat eye already supports face recognition and human body sensor alarm functions. For example, users can add family and friends information, so that smart cat eyes can more accurately identify strangers and create a safer environment. In this way, when you leave the city temporarily, you can always pay attention to the situation at your doorstep.
2. Smart door lock
Smart locks are more convenient for people who are traveling for a long time or returning home for the New Year. For example, temporary friends need to enter the house, housekeeping, cleaning, etc., even if you forget to bring the key or outside. If the key is lost, the door can be opened in other ways.
At the same time, the intelligent door lock not only has a complicated use principle of the lock core, but also can not be opened, and some fingerprint locks need to have a fingerprint to be able to open, and the thief can no longer handle the door lock without the keyhole. The intelligent door lock has a variety of alarm modes, low voltage alarm, to avoid battery no power; error prompt alarm, password fingerprint input error, automatic alarm alarm. Multiple protections to avoid malicious damage and accidents, and the level of security is greatly improved.
3. Surveillance camera
At present, many people's homes are installed at the door. On the one hand, they can be used as cats to understand the visitors. On the other hand, they can monitor the situation outside the door in real time and play a deterrent effect on the theft. Nowadays, many monitors have been mobilized, and the monitor screen has motion changes, and the mobile APP or WeChat platform can receive prompts.
4. Door and window sensor + intelligent gateway
The door and window sensor can be called a wireless door magnetic sensor in principle. The utility model is composed of a wireless transmitting module and a magnetic block. The wireless transmitting module has a "steel reed" component at two arrows. When the distance between the magnet and the reed pipe is kept within a certain distance, the steel The reed pipe is in the off state. Once the distance between the magnet and the reed pipe exceeds a certain distance, the reed pipe will close, causing a short circuit, and the alarm indicator will light and send an alarm signal to the host.
In this supplementary explanation, why is the gateway still needed? Because the general door and window sensor will promote the low-power, short-distance wireless communication technology - ZigBee, and it needs to add a router-like product in the network, the gateway can achieve access Wi-fi control has become a companion product in the current solution.
In addition to relying on the above artifacts, you should pay more attention to the daily changes, such as whether the door attachments are marked by people. Generally, the households who are stepped on will have certain "marks". It is necessary to close the doors and windows and unlock the anti-theft. Doors, you can't put the keys under the flower pots, shoe racks, and carpets near the door to ensure that nothing is lost.
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