What is weak current intelligence? What subsystems are specifically included in building weak current systems? Many weak current engineers, intelligent industry practitioners, bidding and tendering staff, and novice designers often encounter this question.
This article is compiled in strict accordance with the Standard for Design of Intelligent Building Systems GB50314, listing a complete collection of 74 building weak current and intelligent systems. It covers general building weak current, security weak current, fire protection weak current, computer room engineering, smart home, as well as dedicated intelligent systems for hospitals, schools, commercial parks and industrial plants.
The complete set of weak current systems is divided into eight core modules. All systems can be constructed and operated independently, or interconnected and linked for centralized management via an integration platform. They serve as the core foundation for the construction of smart buildings, smart parks and smart cities. Suitable for weak current learning, project quotation, scheme design, bid document preparation and resume reference, this content is packed with practical information and recommended for collection.

I. Information Infrastructure System (10 items)|Basic Building Informatization Weak Current
The information infrastructure system is the core foundation of all building weak current projects. It is responsible for network, communication, audio-visual, information transmission and release of the whole building, serving as an essential basic system for intelligent buildings.
- Generic Cabling System
- Computer Network System
- Full-coverage Wireless WiFi System
- 5G Indoor Distributed Antenna System
- Program-controlled Telephone / IP Telephone System
- Satellite and Cable TV System
- Public Address System
- Emergency Broadcasting System
- Remote Video Conferencing System
- Information Distribution System (LED/LCD Large Screen)
II. Security Technical Protection System (10 items)|Core Security Weak Current System
The security system is a key weak current project for building safety. It is mainly applied to personnel management, property protection and perimeter security prevention in parks, residential quarters, office buildings, factories and commercial complexes, and is a mandatory core system for project acceptance.
- CCTV Video Surveillance System
- Intrusion Alarm System
- Electronic Patrol System
- Access Control System
- Visitor Registration Management System
- Parking Management System
- Parking Space Guidance & Reverse Car Search System
- Elevator Five-way Intercom System
- Perimeter Protection System (Active Infrared Beam / Electronic Fence)
- AI Intelligent Security System (Face Recognition / Behavior Analysis)
III. Building Automation System (BAS) (8 items)|Building Automation & Energy-saving Weak Current
The Building Automation System (BAS) focuses on automatic control of building equipment, energy consumption monitoring and intelligent operation and maintenance. It effectively reduces building energy consumption and cuts manual O&M costs, acting as a standard configuration for high-end smart buildings.
- Air Handling Unit Monitoring System
- Fresh Air Monitoring System
- Water Supply and Drainage Monitoring System
- Intelligent Lighting Control System
- Power Transformation and Distribution Monitoring System
- Elevator Operation Monitoring System
- Cold and Heat Source System Monitoring
- Energy Management System (EMS)

IV. Fire Protection Weak Current System (7 items)|Mandatory Weak Current for Fire Acceptance
The fire protection weak current system is a mandatory building code system. It must be equipped for all commercial buildings, parks and residences, directly related to fire acceptance, and is the top-priority special system in weak current engineering.
- Automatic Fire Alarm System
- Fire Linked Control System
- Emergency Lighting & Evacuation Indication System
- Fire Door Monitoring System
- Electrical Fire Monitoring System
- Fire Power Supply Monitoring System
- Combustible Gas Detection and Alarm System
V. Computer Room and Supporting Weak Current Systems (7 items)|Basic Supporting Facilities for Weak Current Engineering
The weak current computer room serves as the core hub of the entire intelligent system. All network, security and main equipment hosts are centrally deployed in the computer room. Supporting systems guarantee 24-hour stable operation, lightning protection and constant temperature & humidity for equipment.
- Integrated Weak Current Computer Room Project
- UPS Uninterruptible Power Supply System
- Computer Room Precision Air Conditioning System
- Computer Room Environment Monitoring System
- Lightning Protection and Grounding System
- Cabinet & KVM Management System
- Shielding and Anti-static System
VI. Intelligent Integration Platform System (5 items)|Advanced System for Smart Buildings
The integration platform is the high-end core of intelligent engineering. It breaks barriers between independently operated subsystems and realizes unified visualized management of security, equipment, energy consumption and data, which is the core upgrade of smart parks and smart buildings.
- IBMS Intelligent Building Management System
- Building Integrated Management Platform
- IoT Platform
- Digital Twin Platform
- Big Data Analysis and O&M Platform
VII. Community / Residential / Home Intelligent System (5 items)|Civil Residence Weak Current
Mainly applied in residential quarters, villas and apartments and other civil buildings, focusing on home intelligence, community security and convenient access. It is the core intelligent supporting system for smart communities.
- Video Intercom System
- Smart Home Control System
- Home Security System
- Community One-card System
- Integrated Community Security Platform
VIII. Scenario-specific Intelligent Systems (22 items)|Special Industry Weak Current
Professional weak current systems customized for special scenarios such as hospitals, schools, commercial offices, parks and factories, featuring strong pertinence and industry attributes, belonging to special intelligent engineering.
8.1 Dedicated Weak Current Systems for Hospitals (6 items)
- Nurse Call Intercom System
- Ward Calling System
- Surgery Teaching Demonstration System
- ICU Visiting System
- Infant Anti-theft System
- Medical IoT Equipment Monitoring
8.2 Dedicated Weak Current Systems for Schools (6 items)
- Campus One-card System
- Electronic Class Board System
- Multimedia Teaching System
- Recording Classroom System
- Smart Blackboard System
- Campus Broadcasting System
8.3 Dedicated Weak Current Systems for Commerce / Offices (4 items)
- Queue Calling System
- Passenger Flow Statistics and Analysis System
- Multimedia Conference System
- Simultaneous Interpretation System
- Background Music System
8.4 Dedicated Weak Current Systems for Parks / Factories / Transportation (5 items)
- Entrance and Exit Control System
- Person Turnstile System
- Vehicle Barrier Gate Management System
- Emergency Command and Scheduling System
- Environment Monitoring System (Temperature, Humidity, PM2.5, Noise)
The full set of 74 weak current intelligent systems covers all scenarios including civil residences, commercial offices, hospitals, schools and industrial parks. Ranging from basic generic cabling and security monitoring to fire weak current, building automation and intelligent integration platforms, they form a complete building intelligent engineering system.
For weak current engineers, intelligent construction, design and bidding personnel, proficient mastery of the full system classification is the core foundation for completing project schemes, quotations and construction implementation.


