Analysis of wireless passive infrared detector alarm system technical characteristics (1)

Wireless alarm products after years of development, local enterprises and absorption of foreign research and development results, enabling stability reached an unprecedented height, basic has become a burglar alarm products in the market mainstream.

As a burglar alarm key products, passive infrared detector wuxianhua has gradually become a trend.

Wireless probe in addition meet the requirements of the indoor decoration and, more importantly, easy installation, construction cost savings. Along with social development, labor costs, past a wired alarm installation need to pay a heavy cabling work, many of the largest engineering companies have to focus on construction cost accounting to select wireless alarm systems.

Characteristics based on their structure, how to use a series of advanced technology, reasonable solutions to their problems inherent in the product, is a wireless alarm products win the future market.

As the TP/IP technology, wireless alarm products of digital, networked, intelligent, compatibility, stability, scalability has become the mainstream technology development trends.

Wireless alarm market application typically product details finally must be on the winning, in all fields of professional degree, determine the wireless alarm system for market success.

Market segmentation is a wireless alarm application of major trends in the future. In the applications market, wireless alarm will move towards a more fine-grained direction-for different markets, the introduction of different products.

For example, in rural markets, with China's vast, North-South temperature and humidity variation, on the passive infrared detector application place high demands.

With the new rural construction well underway, rural and urban areas regional alarm application needs more and more. While wireless alarm GSM or CDMA transmission, communication expenses basically is a information fee. How to find a way to reduce farmers ' costs of wireless alarm mode, become the subject of the alert manufacturer. With the advancement of science and technology, the birth of many applications need to be able to meet the user's new products, new technologies, such as the emergence of 3 g communication system, in the future should be a good application.

In the professional field, wired alarm system also occupy a certain scale.

But as technology development and probe technology continues to break wireless alarm system in the area of expertise will bloom.

Wireless alarm system with a central feature is the cost savings, infrared probe receives a signal, wireless is sent to the alarm, alarm and alarm centre into one, which eliminates the need to lay cables cost and trouble of large, but also eliminates the time and alarm centre communications charges.

Wireless probe for the configured host itself can be a defense, disarmed, and can be a stand alone control, much easier to use and manage.

In addition to the host used alone, or you can directly manipulate the alarm Center, the landlord alarm and security service companies answer alarm the free choice of the mode, which greatly facilitates the users choice.

Wireless alert technology features wireless passive infrared alarm system has a very wide range of applications, technology, General requirements and high precision, high stability, Omni-directional anti-pets, stronger anti-EMC interference.

Today, some features of breakthrough as the technical implementation of upgrades, such as slow alarm properties, a step in the detection, identification, intelligent pets precision dual technology, etc. For example, our self-developed high precision 0.002 mm (nanometer), multiple Viewports (45 viewport), multiple focal length (three focus) of the Fresnel lens has in 2009 products enabling comprehensive application, this entire industry technology development, are a great role in promoting.

It is learnt that the Fresnel lens technology, many previously stayed in conceptual feature is implemented, the passive infrared detection accuracy has been greatly improved.

For example, detection range, compared to the same type of detector elevated 150%, the detection area has substantially increased, the basic realization of zero false negatives. Type Fresnel lens using precision space segmentation + precise energy Spotlight technology, the realization of high detection sensitivity (step detection, 0.2 m/s for low speed detection), it also greatly reduces the chance of false positives.

Wireless passive infrared alarm system technical characteristics in collaborative work mode, depending on the usage environment, using a different combination of infrared and microwave work, greatly improving the adaptability of the detector on the environment; digital two-way temperature compensation technologies, let detector to different temperature environment condition remained stable probe State, effectively reduces false positives; unique software processing technology, capable of high-strength other temperature disturbance, implementation of effective screening detection; "

The whole area of the "anti-pet feature, effective anti-pet level 35 kg, greatly reducing the owner was not at home pets interfere with alarm, conform to CE (EN50131-G2, EN300440) standards.

General dual technology wireless detectors for microwave and infrared dual detection feature, has the following characteristics:

Advantage

(1) microwave and infrared detection up to compound detection function that can effectively reduce false positives.

(2) the microwave is a high-frequency electromagnetic waves, is not affected by ambient temperature change, you can compensate for infrared temperature impact detection range reduced defects.

(3) can effectively prevent malicious breaking to prevent detector occluded or paint, spray.

Disadvantages

(1) X-band microwave wavelengths longer, can easily penetrate walls and Windows, and other objects; if the sensitivity adjustment is not appropriate, it is easy to detect outdoor mobile objects (branches sway, moving objects, etc.), thereby creating a false alarm.

(2) microwave radiation zone is rendering certain region, in the installation and debugging should pay attention to the sensitivity of the regulation.

(3) vulnerable to air humidity interference and influence detection accuracy.

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