For a family, the most important thing is the personal safety and property safety of the whole family. But children and parents usually go to school and work, leaving the family unattended for most of the day. Therefore, how to ensure the safety of the home is a matter of great concern to the citizens.
Nowadays, with the help of existing intelligent technology, the relatively closed space of the home can be turned into a monitoring area covered by the entire network. No matter where you are, you can always understand every move in the home without worrying about security. .
However, if the technology products are mixed, if there is a lack of certain understanding and screening capabilities, the security products bought at a large price can easily become furnishings. Here we will introduce three types of commonly used security products, which are infrared monitoring equipment, door magnetic alarm device and network remote camera. Through the combination of products, intrusion alarm monitoring can be achieved, allowing users to monitor the danger in the home through the mobile phone at the first time, and let the security system enter more homes.
Infrared arming stealth detection
When the infrared ray emitted by the infrared alarm hits an obstacle, it will bounce back and be received by the alarm probe. If the infrared light detected by the probe is stationary, the alarm will not alarm. At present, infrared alarms on the market are mainly divided into active and passive types.
Active infrared alarm
Active infrared alarm, also called cross-fire infrared alarm, consists of transmitter and receiver. Among them, the transmitter includes power supply, light source, optical system and other components. Under the action of the power supply, the infrared light-emitting diode emits an infrared light beam, which becomes parallel light after being acted by the optical system. The receiver includes optical system, amplifier, optical sensor, signal processor and other components. It is responsible for receiving the infrared signal emitted by the transmitter. The optical signal is converted into an electrical signal by the photoelectric sensor, which is analyzed and processed by the signal processor and then transmitted to the alarm controller. .
The infrared radiation alarm works by using the principle that the transmitter emits infrared rays and the receiver receives infrared rays. An "infrared warning line" is formed between the transmitter and the receiver. Under normal circumstances, the receiver receives a stable light signal. Once the alarm guards against intrusion in the area, the infrared beam emitted by the transmitter is blocked, and what the receiver receives is no longer
A stable light signal, if this change accumulates to a certain degree, the alarm controller will issue an alarm signal.
Through-beam infrared detectors are used in pairs, and the formed monitoring interval is a long horizontal vertical plane. This type of alarm is suitable to be installed on the windows in the home to prevent burglars who break into the window.
Passive infrared alarm
Passive infrared alarms, also called curtain infrared alarms, are based on the detection of outside infrared energy to determine whether someone is moving. Human body temperature is generally around 37 degrees, and infrared rays with a wavelength of about 10 microns will be released. Once the alarm detects such infrared rays in its protection area, it will issue an alarm signal after analysis and processing.
The biggest difference between the curtain infrared alarm and the on-beam infrared alarm is the space form of defense. Unlike the plane-defense cross-fire alarm, the curtain-type infrared alarm can form a three-dimensional monitoring space, and can monitor and arm any local space in the room. When a thief enters the monitoring area, the alarm will send a wireless signal to the alarm host, and the host will send out a high-decibel alarm sound to deter. At the same time, the user is secretly notified by texting or calling.
Magnetism guards against thieves
If the infrared alarm is to prevent a thief from breaking through the window, then the door magnetic prevention is to deal with the thief who pryed the door. Whether it's stealing the key to open the door, or using a tool to pry the door open, the gangster will trigger the alarm device as soon as he opens the door.
Small size and easy installation
As a security alarm system, the door sensor system is small in size and easy to install. It is difficult to be found if you do not pay attention, and has a high concealment. From the structural point of view, the door magnet alarm is composed of a permanent magnet and a door magnet main body. When the permanent magnet and the door magnet main body are close together, the door magnet sensor is in the working waiting state, and when the permanent magnet is away from the door magnet main body by a certain distance, it is in the normally open state.
Since the permanent magnet and the door magnet body are installed in the door frame (window frame) and door leaf (window leaf), respectively, they are basically embedded installation, so it is difficult for non-professionals to notice these. Therefore, this door sensor system is suitable for the prevention of many locations in the home, as long as there are opening and closing conditions, such products can be installed.
Go home and open the door to disarm
Although magnetic door defense can play a very good security role, when people return home, the convenience of disarming also affects the user experience. It is recommended to hang the remote control of this type of product together with the door key. When you go home and take the key to open the door, you can use the remote control to disarm, in case of false alarm.
Under normal use, door sensors are generally available for 3 to 6 months. When the voltage of the door sensor is insufficient, the undervoltage indicator on the door sensor transmitter will light up. At this time, the battery should be replaced in time to prevent security leakage.
Webcam remote monitoring
Infrared monitoring and magnetic door warning can help people discover thieves in time, but if you are in a different place and can't rush home in time, then the thieves are likely to escape. Therefore, choosing a webcam can not be restricted by time and space, and can monitor the situation at home anytime and anywhere through the mobile phone, and capture the scene as evidence.
Strong performance and free rotation
Today's webcams, after several generations of development, have made great progress in both imaging quality and industrial design. Taking mainstream network camera products as an example, they can support all networks, 720p high-definition, 1 million pixel lens, support ir-cut, the captured pictures are not color cast during the day, and are clearer at night. The built-in microphone can transmit the live sound of the captured picture in real time. Using h.264 video compression, high-definition image transmission can be achieved with the lowest traffic consumption.
Compared with the old-style fixed position surveillance camera, the new generation camera can rotate freely. The advantage of this is that one device can monitor more space, which not only saves equipment expenditure, but also helps conceal. At present, the camera with its own gimbal can move 355 degrees horizontally and 120 degrees vertically, with an external infrared lamp and a night vision distance of up to 10 meters. The brightness of the prefabricated position can also be set through the mobile phone.
Highly sensitive to catch anomalies
Not only that, the detection sensitivity of the device can be freely adjusted to catch any abnormal conditions. At the same time, by setting the alarm time sensitively, false alarms can also be avoided. For the detected moving objects, you can automatically take photos and send the target photos to the user's computer, mobile phone and other devices to protect property safety in the first place.
Security host series products
With so many security products scattered throughout the home, if every product needs a monitoring and alarm device, then this is definitely a huge project. If you want to combine multiple smart security products in your home to achieve the effect of mutual cooperation and mutual influence, you need to use a security host to connect all the products in series.
Through the home security host, video surveillance, intelligent alarm, and network control functions can be integrated. Combined with the supporting software, it also has the functions of viewing the monitoring image on the remote computer through the network, withdrawing and arming the alarm device.
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