How will burglar alarm products develop?

In the past decade or so, with the sudden emergence of the surveillance industry, the proportion of alarms in the entire security industry has continuously declined, and many times it has even been forgotten. The overall silence of the alarm industry, apart from the fact that China’s local policies and consumer psychology appeals have not cultivated mature influence, it is even more important that the alarm industry’s own products and technologies have not made substantial breakthroughs, which has led to alarm over the years in the alarm market. . In recent years, as the internet of things and smart cities have come to an end, the alarm technology is also brewing new colors in silence, completing the transformation in a low profile.

AST Technology: Intelligent Chopper Cutter In recent years, the alarm products have made great progress in the host and infrared detector technology, and have taken a key step in the civilian use of the burglar alarm industry host.

AST technology is the automatic study technology. This technology is mainly used in passive infrared detectors. The main function of the technology is to continuously learn the external environment of the detector in the working state, and adjust the software's handling of the alarm according to the actual environment. Here are the main applications of this technology:

Products are installed in special places, such as: obstructions (pillars), moving objects, large changes in temperature and humidity, frequent light changes and other environments, through the continuous learning of the environment, memory of the state of the environment, automatically adjust the software on the signal Treatment method.

The relevant mode settings of the product no longer open the shell, and use flashlights, magnets and other tools to interfere with the detector, so that the different modes of the product can be set according to the length of interference, such as the output NO / NC settings, LEDON / OFF Settings, pulse count settings, alarm delay time settings, pet protection level settings, etc.

Optical Fresnel Lens Technology: Core Technology Completely Breaking Through The Fresnel lens is the core technology of passive infrared detectors and has a decisive influence on the function of infrared detectors.

As a key component of the passive infrared detector, the focusing ability and spatial segmentation capability of the infrared Fresnel lens directly determine the performance of the product. The Fresnel lenses that have been independently developed by the manufacturers now have three features: high accuracy (0.002mm nanometers), multiple viewing zones (45 viewing zones), and multiple focal lengths (three focal points), enabling 45-space precision spatial segmentation. (Traditional only 25 partitions), while achieving accurate energy focus, minimizing energy loss and greatly improving the signal-to-noise ratio.

The use of the new Fresnel lens allows the detector to detect farther distances (from 12m to 20m), higher sensitivity (a true one-step detection, low-speed detection at 0.2m/s), and a lower false alarm miss rate ( The improved signal to noise ratio reduces signal amplification from 15,000 to 5,000, directly reducing the false alarm miss rate to more than 90%. The detection angle is more accurate (the true zero-blind zone alarm is achieved within the viewing angle range).

Say goodbye to paper: The integration of the alarm system and the IoT Fresnel lens design requires consideration of many factors. The more horizontal viewing zones, the smaller and more accurate the area angle of the detection horizontal direction, and the fewer blind areas detected. The same principle, such as the vertical subdivision of the level, the more the detection of the distance stage (usually a wide-angle Fresnel lens design can detect long-distance, middle distance, close range, the design is usually up to 4- 5th floor). However, in practical applications, this has to be matched with the location of the pyroelectric infrared probe. The distances detected by the different positions are different. This can be designed according to the customer's requirements. Because the lens is limited by the viewing angle of the infrared sensor, the vertical and horizontal sensing angles are limited, and the lens area is also limited.

As a subsystem of security, the integration of alarm systems with other subsystems has been one of the key directions for technology and market considerations in recent years. With the development of communication and transmission technologies such as the Internet of Things, the integration of alarm systems and other security systems has reached the stage of practical application.

The biggest difference between alarm and monitoring is the control of the police. Anti-theft alarm reflects the prior prevention, that is, before the police situation did not occur, played a deterrence pre-warning effect in advance, and video surveillance is to confirm the police situation and further evidence. Because of this pre-prevention, there are a lot of uncertainties, so the stability of anti-theft alarm has been criticized by the industry. Anti-theft alarms have been polarized for many years. Video surveillance systems have become well-known to the general public through numerous public events and media coverage. As a result, security guards are now mentioned. Many people think of monitoring at the first time. The author believes that although the surveillance system has a great advantage, but the two are different types of security technology, at least in a very long time can not escape the alarm replaced, and more is the complementarity and integration.