First, the alarm system is to use infrared devices and alarm hosts to control the system of illegal intrusion. According to different needs, there are different configurations.
1. Perimeter alarm system has many alarm detectors, long perimeter, generally adopts bus type alarm system, alarm detector adopts active type detector, the whole system consists of detector, alarm signal conversion module, alarm bus, alarm switchboard , alarm speakers and other components. Its powerful and stable performance. The perimeter distance is unrestricted, and the host can receive alarm detector signals at very long distances through the branch amplifier. The control keypad and alarm horn can be installed in the main control room or on any part of the bus. When the perimeter is long, more than one duty room is required. This system is very suitable.
2. Alarm system in the building The alarm system in the building can be combined with the outdoor alarm system into a large system, or an alarm system can be formed separately according to the needs. According to the number of indoor alarm control points, the bus type alarm host can be selected or the general form of the alarm host can be selected.
3. Small alarm system or home alarm system There are only a few alarm detectors in the small alarm system or the home alarm system. Generally, there is no alarm control. Most of the duty rooms are managed by the husband, or the telephone is given to the designated person in charge.
Second, intelligent security includes security alarm system, access control system, parking management system, security inspection record system, attendance system, intercom doorbell and so on.
1. The security alarm system consists of a probe and a host. When the probe detects the intrusion alarm information, it sends a signal to the host. After receiving the signal, the host sends an audio signal or dials the phone through the dialer to alarm, or controls the camera to capture the live image. It is a fire signal, and it can also start an automatic fire extinguishing device to extinguish the fire. According to the user's alarm needs, the alarm probe can be installed in different positions to prevent the glass breakage sensor from entering the window, preventing the intrusion alarm probe from entering a certain channel, and the smoke detector and the temperature rise probe are fireproof. . Gas detectors for preventing harmful gases, etc.
2. Access control system Use magnetic card and password management to control the entry and exit of the place. Each cardholder's access rights, channels, and entry and exit times can be limited when the cardholder provides a valid pass. Or if you enter a valid password, or both are valid, you can allow it.
3. Attendance system The use of the combination of access control and computer technology to achieve employee attendance management, print attendance reports.
4. Parking lot management system Use the computer technology and magnetic card technology to manage the parking lot and automatically register in and out.
5. Security Digital Inspection System Whether security personnel can conduct inspections on time and on line requires scientific management methods. This system gives the best answer to solve problems.
Use: Install the electronic address button on the inspection route. The security personnel will carry an electronic inspection bar during the inspection. It can communicate with the electronic address button. Use the inspection bar to touch the electronic address button to record the inspection time of the inspector. Before the inspection, different event buttons are defined as different events, such as: the door is not closed, the password is lost, etc., and what events are found during the inspection are touched on the corresponding event button to record the situation found by the inspection. The administrator can use the computer to View inspections and print inspection reports to provide a basis for scientific management.
6. Electronic fence Use 6000-10000 volt pulse high voltage arming, good safety, low false alarm rate, high reliability, wide adaptability, no blind zone, no dead corners and no loopholes. Suitable for installation on the fence of iron fences. Blocked mainly, the alarm is supplemented.
Third, the function of each equipment
1. Active alarm detector The active alarm detector consists of a transmitting end and a receiving end. The transmitting end emits infrared rays, and the receiving end receives infrared rays. When someone tries to pass through the infrared alarm control line, the receiving end does not receive infrared rays, and will immediately Signals to the host to implement an alarm.
Many outdoor occasions need to distinguish between the size of the infrared object to determine the size of a person or a bird, so a class of alarm detectors are two-beam or four-beam detectors, and large objects (such as people) block two or four beams at the same time. An alarm will be generated.
2. Passive alarm detector Generally installed indoors, the human body temperature is 37 degrees, it will naturally emit infrared rays. The passive detector continuously detects the change of indoor infrared rays, and will generate an alarm when someone moves.
It is very important to distinguish between humans and small animals. Advanced passive detectors can distinguish between humans and small animals without causing false alarms.
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