For a family, the most important thing is the personal safety and property safety of the whole family. However, children and parents usually have to go to school and work, leaving the family in a state of unsupervised most of the day. Therefore, how to ensure the safety at home is an issue that citizens are very concerned about.
Security system into people's homes
Nowadays, with the help of existing intelligent technology, the relatively closed space of the home can be turned into a monitoring field covered by the whole network. No matter where you are, you can always know your every move at home, and you don’t have to worry about security at all. .
However, technology products are mixed. If you lack a certain understanding and screening ability, security products bought at a high price can easily become decorations. Today, I will introduce three types of commonly used security products, namely infrared monitoring equipment, door magnetic alarm device and network remote camera. Through the combination of products, intrusion alarm monitoring can be realized, allowing users to monitor the dangers at home through mobile phones at the first time, allowing the security system to enter more homes.
Infrared arming invisible detection
After the infrared light emitted by the infrared alarm hits the obstacle, it will bounce back and be received by the alarm probe. If the infrared rays detected by the probe are still, the alarm will not alarm. At present, the infrared alarms on the market are mainly divided into two types: active and passive.
Active infrared alarm
The active infrared alarm, also called the opposite infrared alarm, is composed of a transmitter and a receiver. Among them, the transmitter includes components such as a power supply, a light-emitting source, and an optical system. Under the action of the power supply, the infrared light-emitting diode emits an infrared beam, which is transformed into parallel light and emitted 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 sent to the alarm controller. .
The infrared ray alarm is based on 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 optical signal. Once someone invades the area protected by the alarm, the infrared beam emitted by the transmitter will be blocked, and the receiver will no longer receive the
Stable light signal, if this change accumulates to a certain extent, the alarm controller will send out an alarm signal.
Through-beam infrared detectors are used in pairs, and the monitoring interval formed is a long-distance vertical horizontal plane. This type of alarm is suitable for placement on the windows of the home to prevent burglars from breaking through the windows.
Passive infrared alarm
Passive infrared alarms, also known as curtain infrared alarms, are based on the detection of external infrared energy to determine whether someone is moving. Human body temperature is generally around 37 degrees, and it will release infrared rays with a wavelength of about 10 microns. Once the alarm detects this infrared rays in its protection area, it will send out an alarm signal after analysis and processing.
The biggest difference between curtain-type infrared alarms and through-beam infrared alarms is the space form of defense. Different from the through-beam alarm of the plane defense, the curtain 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 then send out a high-decibel siren to deter. At the same time, users are secretly notified by texting or calling.
Door Magnetic Guard Against Thieves
If the infrared alarm is to prevent thieves from breaking the window, then the door magnetic defense is to deal with the thief who broke the door. Whether it is to steal the key to open the door, or use a tool to pry the door open, the robber will trigger the alarm device as soon as the door is opened.
Small size and easy installation
As a security alarm system, the door magnetic system is small in size and easy to install. From a structural point of view, the door magnetic alarm is composed of two parts: a permanent magnet and a door magnetic main body. When the permanent magnet and the door magnetic main body are very close, the door magnetic sensor is in a working waiting state, and when the permanent magnet leaves a certain distance from the door magnetic main body, it is in a normally open state.
Since the permanent magnet and the door magnetic body are respectively installed in the door frame (window frame) and door leaf (window sash), they are basically embedded installation, so it is difficult for non-professionals to notice these. Therefore, this door magnetic system is suitable for the prevention of many locations in the home, and such products can be installed as long as there are opening and closing conditions.
Go home and open the door to disarm
Although the door sensor arming can play a 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 with the door key. When you go home and take out the key to open the door, you can easily disarm with the remote control to prevent false alarms.
The door sensor is generally available for 3 to 6 months under normal use. When the door sensor voltage 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 omissions.
IP camera remote monitoring
Infrared surveillance and door magnetic warning can help people find thieves in time, but if you are in a different place and can't get home in time, the thief is likely to escape. Therefore, choosing a network camera can monitor the situation at home anytime and anywhere through the mobile phone without the limitation of time and space, and take the scene picture as evidence.
Powerful Free Spin
Today's network cameras, after several generations of development, have made great progress in both image quality and industrial design. Taking mainstream IP camera products as an example, they can support all networks, 720P high-definition, 1-megapixel lens, and support IR-CUT. The built-in microphone can transmit the live sound of the captured picture in real time. Using H.264 video compression, it can also achieve high-definition image transmission with the lowest traffic consumption.
Compared with the old fixed-position surveillance cameras, the new generation of cameras can rotate freely. The advantage of this is that one device can monitor a larger space, which not only saves equipment expenses, but also helps concealment. At present, the camera with its own gimbal can move 355 degrees horizontally and 120 degrees vertically. It has an external infrared light, and the night vision distance can reach 10 meters. The preset brightness can also be set through the mobile phone.
Highly sensitive to catch exceptions
Not only that, the detection sensitivity of the device can be adjusted freely to catch any abnormal situation. At the same time, through the sensitive setting of the alarm time, false alarms can also be avoided. For the detected moving objects, it can automatically take pictures, and send the target photos to the user's computer, mobile phone and other devices to protect property safety at the first time.
Security host series products
With so many security products scattered all over the home, if each product requires a monitoring and alarm device, then this must be a rather huge project. If you want to combine a variety of smart security products in your home and play 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 into one. Combined with the supporting software, it also has the functions of viewing monitoring images, canceling and arming alarm equipment on the remote computer through the network.
