- Budget: ~RMB 00,000
- Products: Laser Intrusion Detection
- Construction: System Integrator
Laser intrusion detector case display at a petrochemical base in Qingdao, Shandong.
What is a laser intrusion detector?
A laser intrusion detector belongs to the active intrusion detector category, mainly composed of a laser transmitter and a laser receiver. The laser transmitter consists of a laser emitter, modulation excitation power supply and corresponding direction adjustment mechanism; the laser receiver consists of a laser receiver, optoelectronic signal processor and corresponding support mechanism. The laser transmitter emits directional strong laser beams with good directivity, single frequency and consistent phase. Invisible modulated laser beams (single or multiple) form a warning line, and the system performs closed perimeter, planar and three-dimensional intrusion-prevention deployment through beam-blocking alarms. Active laser intrusion detectors have the advantages of long detection distance, high sensitivity, low false alarm rate, safety, reliability, good concealment, easy commissioning and maintenance, and adaptability to various harsh natural climates.
Product features of laser intrusion detectors:
Long detection distance and low false alarm rate. Laser beams have excellent directivity, so light energy is concentrated and transmission efficiency is high. The laser beam has high emission power density, small divergence angle, concentrated beam and good directivity; with devices of equal power, the laser power density at the target receiver is hundreds to thousands of times that of infrared LED beams. Under the same climatic conditions, laser transmission attenuation is far smaller than other similar detectors, with strong rain-fog penetration; detection distance can reach hundreds of meters to several kilometers, ensuring long-distance normal operation and reducing false alarms in bad weather;
Closed-loop transmission without mutual interference. Laser beams use closed-loop transmission, so there is no mutual interference problem of infrared detectors deployed continuously in a straight line or in adjacent systems; long-distance continuous linear deployment or close-range cross deployment is possible. There is also no infrared light leakage interfering with other sensitive infrared equipment;
Strong resistance to stray light and electromagnetic interference. Reasonable optical receivers and high-power-density emitters give the system strong anti-interference capability. The excellent monochromaticity of laser beams and controllable spot size allow normal operation in severely interfered environments;
Strong defense capability. Because the laser system has no mutual interference problem in continuous linear or small-angle deployment (laser repeaters are used for very long distances), continuous/cross deployment can be implemented on important sections as needed. The laser system can implement multiple independent beam planes, forming a very tight warning plane. Continuous deployment without crosstalk, each beam independently protected — blocking any beam triggers an alarm, so a very tight warning plane and three-dimensional deployment can be formed. It can be fixed covertly, or deployed temporarily as mobile or dynamic defense;
Fast on-site commissioning and easy maintenance. When matched with a dedicated laser positioning instrument, the position of light spots can be checked at any time. Obstacles such as branches or leaves blocking propagation, or beam spots deviating from the center at turns or receivers, can be directly determined, accurately and quickly guiding adjustment work;
Long service life and low maintenance cost. Taking full advantage of the laser system, equipment purchase costs, construction volume and impact on environmental aesthetics can be reduced; laser tubes are easy to replace and maintenance costs are low.
Stable system, good reliability, high sensitivity. The whole system uses steel and aluminum materials with precise mechanical structure; the laser system and optical components are machined as precision instruments with stable internal structure. The installation is comprehensive, firm and reliable. The laser intrusion detection system is fixed on steel pipes and welded flange bases, installed on cement foundations with chemical anchors. In addition to the inner protective cover resisting wind, sand and rain, an outer protective cover is separately fixed to isolate the influence of strong wind on system stability.
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