I. System Positioning
The intrusion alarm system is the 'electronic sentinel' and 'first line of defense' of the security system. Its core mission isto detect illegal intrusion, trigger alarms in real time, and deter criminal attemptsIt complements the video surveillance system - surveillance solves 'can see,' while alarms solve 'know immediately.' The system is suitable for perimeter walls, warehouses, finance rooms, computer rooms, archives, and other places requiring high-level protection, achieving proactive protection of 'alarm before arrival.'
II. Equipment Composition and Functions
| Equipment | Core Function | Selection Key Points |
|---|---|---|
| Infrared detector | Detects human intrusion and is the system's 'perception tentacle' | Select by scenario: passive infrared (PIR, indoor), infrared beam (perimeter wall), dual-technology detector (infrared + microwave, anti-false alarm); detection distance and angle configured according to the protected area |
| Door magnetic contact | Detects the open and closed status of doors and windows | The door magnetic contact consists of a reed switch + magnet. When the door is illegally pried open, it triggers an alarm. It is widely used for doors, windows, and rolling shutter door protection. |
| Emergency alarm button | Manual active alarm triggering | Installed in finance rooms, front desks, duty rooms, etc. One-button alarm in emergencies, concealed installation, anti-mistouch design |
| Alarm host | The core of system control, responsible for receiving, processing, and linking alarm signals | Supports multi-zone expansion, keyboard / remote arming and disarming, alarm linkage output, and can be equipped with GSM / network modules for remote reporting |
| Sound and light siren | On-site sound and light warning, deterrence and reminder | High-brightness flashing light + high-decibel siren (>=110dB). When an alarm is triggered, the site sounds and lights up together, deterring intruders and alerting nearby personnel |
III. Core Functions
Illegal intrusion alarm- When someone illegally enters the detection area or pries open a door or window, the infrared detector and door magnetic contact immediately trigger, and the alarm host completes signal reception and processing within seconds, achieving 'second-level response'
Multi-scenario coverage protection- Suitable for high-level protection places such as perimeter walls (infrared beam / electronic fence), warehouses (door magnetic contact + infrared), and finance rooms (infrared + emergency button), achieving three-dimensional arming and no-blind-spot protection
Alarm Linkage and Response- After an alarm is triggered, the sound and light siren gives an on-site warning, and the alarm information is simultaneously pushed to the duty center, mobile APP, and security personnel. It can also link to video surveillance to pop up the on-site image and link to access control for locking, forming a closed loop of 'detection - alarm - linkage - handling'
Flexible arming and disarming- Supports flexible arming and disarming by time period and by area. Partial disarming during working hours and full arming at night, balancing safety and convenience
IV. Solution Advantages (Based on Yunzhi Company's Practice)
Relying on weak current intelligent system integration capabilities, Yunzhi Company can provide unified integration of intrusion alarm systems with video surveillance, access control, fire protection, and other subsystems, realizing alarm linkage video pop-ups, linkage lighting, and linkage access control, and building a multi-system collaborative three-dimensional security system. It has been implemented in projects such as Zijun Tianxi, providing reliable security protection for parks, warehouses, finance rooms, and other places.