The working principle of burglar alarm and the analysis of the cause of false alarm

[ Pacific Security Network News ] burglar alarm works: When the detector senses someone entering the home, the alarm host will immediately generate an alarm and promptly notify the owner to make a deal. The thieves usually enter the room and enter through the doors and windows. There are two types of burglar alarms: door and window burglar alarms and large perimeter burglar alarms. Door and window burglar alarm is divided into fixed dial burglar alarm, GSM mobile burglar alarm, dual network burglar alarm, live sound and light alarm, video surveillance burglar alarm. The burglar alarm external device has wireless infrared detection alarm, wireless door magnetic window magnetic glass shatter detector, infrared radiation detector, gas leak detection alarm, smoke detection alarm and so on.

Large perimeter burglar alarms include infrared infrared fences, infrared walls and long-range infrared detectors.
The composition of the burglar alarm: the burglar alarm consists of two parts: the burglar alarm host and the external detector.
The reason for the false alarm generated by the infrared burglar alarm:
1. False alarm caused by improper system design
2. False alarm caused by improper construction
3. False alarm caused by improper use of the household
4. False alarm caused by environmental noise

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Nordic Pendant Lamp

A Nordic pendant light is a type of lighting fixture that is inspired by Scandinavian design principles. It typically features clean lines, minimalistic shapes, and a focus on functionality. Nordic pendant lights often incorporate natural materials such as wood, metal, or glass, and they are known for their understated elegance and timeless appeal. These lights are often used to create a warm and inviting atmosphere in a variety of interior spaces, including living rooms, dining areas, and bedrooms.

The Nordic pendant lamp is a type of hanging light fixture that is inspired by the minimalist and functional design principles of Nordic interior design. These lamps often feature clean lines, natural materials, and a simple, yet stylish aesthetic.

Nordic pendant lamps are typically made from materials such as wood, metal, or glass, and they come in a variety of shapes and sizes. Some common designs include cylindrical or cone-shaped shades, as well as more abstract or geometric shapes.

These lamps are often used as a focal point in a room, whether it be in a living room, dining room, or bedroom. They can provide both ambient and task lighting, depending on the placement and type of bulb used.

The simplicity and timeless design of Nordic pendant lamps make them a popular choice for those who appreciate Scandinavian style and want to bring a touch of that aesthetic into their home.

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