**Preface**
Baoshan Campus of Shanghai University is located at 380 Nanchen Road, Baoshan District. The total construction area of the project is 133,500 square meters, with 120,000 square meters above ground and 13,500 square meters underground. The campus includes newly built mechanical automation, materials, literature, and law colleges, general-purpose laboratories, libraries, administrative offices, logistics support facilities, underground civil defense projects, parking areas, and outdoor infrastructure.
This fire door monitoring system enables 24-hour real-time automatic inspection of fire door status, issuing alarms for any abnormal conditions. In case of a fire, it automatically closes normally open fire doors, providing crucial time for rescue and evacuation.
**1. System Requirements Analysis**
The system detects the status of fire doors and issues audible and visual alarms to accurately indicate the location of any abnormal fire doors. It also stores various fault signals and displays the system’s power status.
**2. Reference Standards**
- GB29364-2012: Fire Door Monitor
- GB50116-2013: Design Specification for Fire Automatic Alarm Systems
- GB50016-2014: Code for Fire Protection Design of Buildings
- GA93-2004: Fire Door Closer
**3. System Structure**
The AFRD100 fire door monitoring system centrally controls terminal devices such as electric door closers and electromagnetic relays. It monitors the opening, closing, and fault status of fire exit doors in real time and displays faults like open circuits or short circuits. The system uses a fire-fighting bus to connect monitoring modules with communication functions. When a terminal device experiences a short circuit or break, the fire door monitor sends an alarm signal, indicating the location and saving the alarm information.
The three phases of the Baoshan Campus expansion include the School of Materials and Communications, the Institute of Mechanical Engineering, and the Library.
The School of Materials and Communications consists of three areas: the School of Materials, the School of Communications, and the General Laboratory. There is one fire door monitoring host and 31 dual-door normally closed fire door monitoring modules.
The Institute of Mechanical Engineering includes three areas: the East Building, South Building, and North Building. It has one fire door monitoring host, 4 double-leaf normally open fire door monitoring modules, and 67 double-leaf normally closed fire door monitoring modules.
The library section includes eight areas, such as the library, foreign language college, China-Europe college, liberal arts college, law school, social college, social science college, and microstructure research center. It has one fire door monitoring host and four fire door extensions, along with 182 dual-door normally closed fire door monitoring modules.
**Site Topology**
[Image: Site layout of the campus]
**Machine from the College**
[Image: Layout of the School of Materials and Communications]
**Library**
[Image: Layout of the Library]
**System Network**
[Image: Network diagram of the AFRD100 system]
**Main Equipment of AFRD100 Fire Door Monitoring System**
1. **Fire Door Monitor**
- **Panel Layout and Function Description**:
[Image: Panel layout of the fire door monitor]
- **Terminal Wiring Diagram**:
[Image: Wiring diagram of the monitor]
- **Technical Parameters**:
- Model: AFRD100/B
- Input Power: AC220V±15% 50Hz
- Input Power: 250W
- Output Voltage: DC24V
- Output Current: 10A
- Maximum Capacity: 256 points (two bus loops)
- CAN Bus Loop: 32 area extensions
- Communication: CAN bus, two bus
- Power Cable: NH-BV-3×2.5mm²
- Second Bus: ZR-RVSP-2×2.5mm²
- Communication Distance: ≤500m
- Display: 8-inch touch screen, full Chinese and graphic display
- Alarm Method: Audible alarm
- Record Storage: ≥10,000 records
- Print Function: Mini thermal printer
- Operation Levels: 3 levels for different staff roles
- Battery: Valve-regulated sealed lead-acid battery, 12V/12Ah, 2 units
- Dimensions: 550×450×200 mm
- Operating Temperature: -10°C to +55°C
- Humidity: ≤95% RH
- Altitude: <2500m
- Protection Level: IP30
- Installation: Wall-mounted
2. **Regional Extension**
- **Panel Components and Function Description**:
[Image: Extension panel layout]
- **Terminal Wiring Diagram**:
[Image: Extension wiring diagram]
- **Technical Parameters**:
- Model: AFRD-QYFJ-250W-12Ah
- Input Power: AC220V±15% 50Hz
- Output Voltage: DC24V
- Output Current: 10A
- Maximum Capacity: 256 points (two bus loops)
- Communication: Uplink CAN bus, downlink 2 bus
- LED Indication
- Power Cable: NH-BV-3×2.5mm²
- Communication Line: ZR-RVSP-2×2.5mm²
- Communication Distance: ≤500m
- Battery: 12V/12Ah, 2 units
- Dimensions: 550×450×200 mm
- Operating Temperature: -10°C to +55°C
- Humidity: ≤95% RH
- Altitude: <2500m
- Protection Level: IP30
- Installation: Wall-mounted
3. **Fire Door Monitoring Module**
- **Module Shape**:
[Image: Normally open fire door module]
[Image: Normally closed fire door module]
- **Technical Parameters**:
- Operating Voltage: DC24V
- Control Signal Output: DC24V, 1A
- Communication: Second bus
- Operating Temperature: -10°C to +55°C
- Humidity: ≤95% RH
- Dimensions: 100×100×35 mm
- Installation: Pre-box ready for installation
4. **System Function**
- **Main Interface**:
[Image: Main operation interface]
- Includes "Login" button, "Interface Title," "Feature List," and "System Status Bar."
- **User Login Interface**:
[Image: Login interface]
- After entering the correct username and password, the system jumps to the user's interface.
- **Rights Management Interface**:
[Image: Rights management interface]
- Three operation levels: "Super Administrator" → "Administrator" → "Operator."
- **Condition Monitoring Interface**:
[Image: Condition monitoring interface]
- Displays the working status of fire doors visually.
- **Equipment Testing Interface**:
[Image: Testing interface]
- Allows testing of system parameters and functions, only accessible by administrators.
- **Event Record Interface**:
[Image: Event record interface]
- Displays stored alarm, fault, and event records, with customizable date queries.
**Conclusion**
With the rapid development of the economy and technology, urban populations are increasing. When a fire occurs, isolating the fire source quickly and controlling its spread is essential for effective firefighting and safe evacuation. Therefore, fireproof doors and other fire barriers are widely used in building designs. However, due to poor design, improper selection, or insufficient monitoring, fire doors may not function as intended. Real-time monitoring and control of fire door status is critical to prevent fire spread and smoke propagation. Thus, the fire door monitoring system was developed.
The fire door monitoring system is a new product in the field of fire safety. It integrates industrial computer technology, communications, anti-electromagnetic interference, digital sensor technology, and fieldbus control into an intelligent system. It can perform 24-hour real-time patrols of fire door status, issuing warnings when abnormalities occur. In the event of a fire, the system automatically closes normally open fire doors, creating valuable time for rescue and evacuation.
**References**
[1]. Ren Cheng, Zhou Zhongzhong. *Principles and Application Guide for Power Electronic Measurement Digital Meters*. Beijing: China Electric Power Press, 2007.
[2]. Zhou Zhong. *Application of Electric Power Meters in Energy Metering of Large-scale Public Buildings*. *Modern Building Electric*, 2010.
**About the Author**
Wu Haiying, female, holds a bachelor’s degree from Ankerui Electric Co., Ltd. Her main research focuses on smart grid power distribution. Email: [Insert email]. Mobile: [Insert QQ number].
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