The GSM anti-theft alarm system uses the global GSM short message data transmission mode and voice function platform to complete intelligent data remote transmission and control alarms. The system integrates smart home functions such as home, store, office safety, electrical control, and private car remote monitoring. , Because the GSM global wireless mobile communication network has a wide signal coverage area, it truly realizes low-cost, high-quality ultra-long-distance convenient, flexible and intelligent wireless control and alarm, and solves the limitations of fixed telephone or wired broadband network wired alarm.
The GSM global wireless mobile communication network has been popularized all over the world and is widely used in security devices, data monitoring and remote monitoring systems for single households, residential properties, electricity, transportation, petroleum, coal, railways, municipalities, public security and other sectors.
The working principle of GSM anti-theft alarm system:
The anti-theft alarm system usually consists of three parts: detector (also called alarm), transmission channel and alarm controller.
The alarm detector is composed of sensors and signal processing. It is used to detect the intrusion behavior of intruders. The device composed of electronic and mechanical parts is the key to the anti-theft alarm system, and the sensor is the core element of the alarm detector. Sensors with different principles can constitute alarm detection devices of different types, different purposes, and different detection purposes.
(1) Alarm detectors can be divided into infrared alarm detectors, microwave alarm detectors, passive infrared/microwave alarm detectors, glass break alarm detectors, vibration alarm detectors, ultrasonic alarm detectors, and laser alarm detectors according to their working principles. Detectors, magnetic switch alarm detectors, switch alarm detectors, video motion detection alarms, sound detectors and many other types.
(2) Alarm detectors can be divided into active alarm detectors and passive alarm detectors according to their working methods.
(3) Alarm detectors can be divided into point-controlled alarm detectors, line-controlled alarm detectors, area-controlled alarm detectors and space guard alarm detectors according to the different detection ranges.
In addition to the above distinction, there are other ways of division. In practical applications, according to different usage conditions, a reasonable choice of alarm detectors of different protection types can meet different security protection requirements.
The alarm detector is used as a sensor detection device to detect the intrusion behavior and various abnormal conditions of the intruder. There are many places that need safety precautions in various intelligent buildings and ordinary buildings. These places also have various safety precaution goals and requirements based on actual conditions. Therefore, a variety of alarm detectors are needed to meet different security requirements.
According to the actual site environment and the user's safety protection requirements, reasonable selection and installation of various alarm detectors can better achieve the purpose of safety protection. When the selection and installation of the alarm detector is not appropriate, there may be loopholes in security precautions, which can not achieve the rigor of security precautions, giving intruders an opportunity to take advantage of, and thus bringing undue losses to security precautions.
