Intelligent false alarm prevention infrared detector

Abstract

The invention relates to an intelligent false alarm prevention infrared detector; a battery mounting area is arranged in a lower shell, an infrared sensor is arranged in a circuit board and is electrically connected with the circuit board, and the circuit board is arranged in a shell and is fixed on a lower shell, an antenna and an alarming / undervoltage warning part are respectively fixed on the shell and are electrically connected with the circuit board, the head part of the infrared sensor is arranged in a closed space of the sensor of an upper shell, a spherical surface infrared lens is arranged on the upper shell and is matched with the head part of the infrared sensor; especially, the detector also comprises a left protective separation blade and a right protective separation blade which can be detachably fixed on the upper shell and are used for covering the spherical surface infrared lens; an upper heat-insulation pad and a lower heat-insulation pad are respectively arranged above and below the infrared sensor, in addition, the detector further comprises a bracket which is fixedly clamped with the lower shell in a rotating way, and a special traceless adhesive tape which isadhered on the bracket; the invention has compact structure, skillful design, and convenient installation without damaging decoration, can assemble and disassemble repeatedly, and has low false alarmrate, can effectively prevent pets and users from triggering and alarming, at the same time, the positions such as windows and the doors can be effectively protected.

Description

technical field [0001] The invention relates to the technical field of detectors, in particular to the technical field of infrared detectors, in particular to an intelligent anti-false alarm infrared detector, which is applied to security and anti-theft alarm detection. Background technique [0002] The existing passive infrared detection technology has been widely used in the security alarm industry. Its basic working principle is to control the detection range through the infrared lens, and the infrared sensor inside the lens senses the mobile infrared signal in the corresponding range, thereby generating an alarm signal. Send it to the alarm host for processing. However, due to the weak circuit design and structural design capabilities of domestic security companies, insufficient research and development experience, and inaccurate product analysis and positioning, the existing passive infrared detectors have some inherent defects and have not been able to do so. Solve it...

AI Technical Summary

Problems solved by technology

But this is basically impossible. Ordinary users have almost no understanding of the basic performance, technical indicators and installation requirements of infrared detectors, so it is impossible to correctly select the installation location and adjust the infrared detector according to the actual situation;

[0004] 2. Defects in the installation method: due to the detection angle defect and the limitation of the base structure, the existing infrared detectors are installed by screws

Therefore, the promotion and popularization of infrared detectors has been limited by the difficulty of installation and cannot be promoted and used on a large scale.

Such an installation method, even for a professional installation company, has too much workload, the installation efficiency is very low, the installation cost is bound to be high, and the user is not easy to accept, so it will inevitably limit the promotion and use of the product;

[0005] 3. Defects in anti-pet performance: most of the existing passive infrared detectors do not have the function of anti-pet. requirements, and the reliability is not high

If the pet is large or the distance between the pet and the probe is relatively close, the probe will still be triggered, and the reliability of its anti-pet function is very poor, and it is basically of no practical value

Preventing pets from triggering alarms is also a chronic problem that the existing traditional passive infrared detectors have not really solved;

[0006] 4. It does not have the function of preventing the user from triggering the alarm: the horizontal detection range of the existing passive infrared detector is basically a fan-shaped area of ​​about 90 degrees, and the detection range cannot be effectively partitioned and controlled

This makes the practicability of the product not strong, the user's operation burden is too large, and the user's acceptance of it is very low

This is also a serious obstacle limiting the popularity of its application;

[0007] 5. The vertical detection range has relatively large defects: At present, ordinary passive infrared detectors generally use flat infrared lenses, and their vertical detection range is actually a small fan-shaped range, generally around 26 degrees.

If it is not adjusted properly, the detector will not be able to detect the range it should be detecting, and will not be able to play its due warning role;

[0008] 6. Installation and use will damage the home decoration: the installation process of ordinary indoor passive infrared detectors will seriously damage the home decoration, such as drilling holes in the wall, drilling holes in the door, and screwing; or using ordinary double-sided tape and other adhesive materials will also damage the home decoration. As a result, the glue on the surface of the installation position cannot be effectively cleaned; moreover, the appearance design of ordinary indoor passive infrared detectors is not beautiful enough, and the manufacturing process is also poor, which will cause certain damage to the interior decoration effect after installation

These problems are also an important reason why users are unwilling to use ordinary infrared detectors;

[0009] 7. High false alarm rate: Due to unreasonable structural design, circuit design defects, unreasonable component parameter design, and low grade of selected components, ordinary infrared detectors in China have a generally high false alarm rate.

It is precisely because of the above-mentioned many defects in ordinary infrared detectors that the promotion of infrared anti-theft systems in civilian use has not been successful.

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