Building automation systems use computers to monitor, control, and record data from various subsystems, achieving decentralized energy-saving control and centralized scientific management. This provides a good working environment for building users, convenient management tools for building managers, reduces energy consumption and management costs for building operators, and provides the material foundation for modern property management. Its main control components are as follows:
Air conditioning monitoring system:
Its monitoring requirements are: temperature control, humidity control, fresh air, return air, exhaust air control, chiller antifreeze monitoring, filter status monitoring, fan status and fault alarm. The chiller station monitoring system includes automatic control of cooling water pumps and cooling tower fans, energy-saving control of the number of chiller units and differential pressure control of the chilled water system, as well as control of the chiller station by the central management station.
Therefore, the following issues need to be addressed: monitoring, control, and fault alarming of cooling tower fan operation status; monitoring, control, and fault alarming of cooling water pump operation status; monitoring and control of chiller unit cooling water inlet temperature; monitoring, control, and fault alarming of cooling water pump operation status; monitoring and control of chiller unit cooling water outlet temperature and flow rate; monitoring and control of differential pressure between water distributor and collector; and monitoring, control, and fault alarming of chiller unit operation status.
Water supply and drainage monitoring system:
The system monitors and controls the operation of the building's water supply and drainage systems, including domestic water, fire-fighting water, sewage, and chilled water tanks. This includes pressure measurement points, level measurement points, and switch control points. The system is required to display parameters at each monitoring point, equipment operating status, and fault alarms for abnormal conditions, and to control the start and stop of related equipment. (Visit zt.ruiec.com for more details)
Power distribution monitoring system:
This includes monitoring and controlling various points in low-voltage power distribution systems , computer uninterruptible power supply systems, chiller plant power distribution, transformers, high-voltage systems, and high-voltage secondary lines.
It mainly includes the measurement and control of current, voltage, active power, reactive power, power factor, temperature, etc., and requires real-time monitoring and metering of the power supply system's operating parameters. It displays the main wiring diagram, AC/DC system and UPS system operating diagrams and parameters, correctly distinguishes between switch changes and fault changes, alarms for parameter over-limits, and sequentially records accidents and faults. It can query the cause of accidents, display, tabulate, and print data, and can plot load curves and display and print operating reports. The heating station monitoring system: A central monitoring system monitors the hot water outlet temperature and flow rate of the heat exchanger and controls the start and stop of the hot water pump.
Lighting monitoring system:
The system is controlled by a central monitoring system to switch on and off according to a predetermined time each day, and its status is monitored. The working status can be displayed in text and graphics and printed out by a printer.
Security monitoring system:
Security systems are an essential component of intelligent buildings, providing security monitoring, intrusion alarms, and access control. The security monitoring system employs a microcomputer-controlled matrix system, centrally managing video switching, horizontal/tilt/zoom control, and self-detection functions. The system can be equipped with individual control keyboards for easier management.
Security monitoring system technology is mainly manifested in the following ways: Intrusion alarm systems use various sensors , such as active infrared detectors, passive infrared detectors, infrared microwave dual-technology detectors, glass breakage sensors, vibration sensors, and various manual and foot switches, to obtain information about the main passages, entrances and exits, important areas and surrounding areas of the building, in order to facilitate prevention work.
Entry/exit control system:
The system identifies and selects personnel entering and exiting, meaning all personnel entry and exit are monitored. After identifying a person, the system decides whether to allow them entry or exit based on stored data. Each entry and exit event is stored as an event record, and this data can be selectively output as needed.
The entire security system forms an organic whole. When an intrusion alarm is triggered or unauthorized entry or exit occurs, the central control room receives the relevant alarm information. Through information exchange, the security monitoring system activates cameras near the alarm location and switches to the designated monitor for monitoring. At the same time, the video recorder automatically records the scene for future reference.
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