At present, there are two integration ways of intelligent building management systems: subsystem integration mode and controller integration mode. The appropriate integration mode is selected according to the actual requirements. The management of intelligent building systems requires the coordination and cooperation of each subsystem to realize the safety and reliability of intelligent buildings. Here are 6 tips that managing buildings intelligently.
1. Central air-conditioning system
According to the time arrangement of the personnel in the building to set up reasonably, start and stop the chiller and heat exchanger in advance, so that it meets the required air conditioning system. When the sensor passes the measured temperature to the system, the system will carry out the corresponding PID adjustment, in order to control the start and stop times of the air conditioning system unit, to avoid the waste of energy, and is conducive to extend the life of the equipment.
For the monitoring of the floor air treatment unit, necessary monitoring measures need to be taken. Reasonably set the start of the fresh air treatment unit according to the time arrangement and the temperature requirements of different seasons. If the humidification treatment is needed, the steam humidification function of the fresh air treatment unit should be started.
2.Lighting system
Turn on the total power supply in the office at a fixed time before the working time, and then start the delay to cut off the power supply after work. At this time, the system will set up the delay to cut off the power supply. In this way, even if the user forgets to turn off the light source switch, the lighting will be automatically turned off within the predetermined time, without manual operation by the manager, which greatly saves human operation and saves energy.
Stair lighting is also a problem to be considered in the automation of the lighting system. The lighting opening time is set in advance according to the working time, and the system will regularly switch off during the same working time. When an emergency story occurs, the system can achieve the forced opening of the stairwell lighting, to ensure the normal supply of lighting.
Public lighting should be controlled in layers, and the closing time of public lighting is set according to the commute to and from work, and the lighting equipment on each floor is turned off at the specified time. In order to facilitate the security guards to patrol in the building, the security system and the lighting system should be linked. When the security guards patrol, the lighting of the corresponding position should be automatically opened according to the position of the security guards.
In addition, the control of outdoor lighting should also be added to the system control scope, according to the work and rest time to set the switch time of outdoor lighting equipment, to achieve the purpose of energy saving and beautification.
3. Control and monitoring of the power supply and distribution system
The control and monitoring of the high-voltage power distribution system is the top priority in the power supply and distribution system, which is directly related to the safety and stability of the power supply and distribution system. The three-phase voltage, three-phase current, frequency, active power, and reactive power of the high-voltage inlet line should be carefully monitored. When the above value exceeds the limit value, the automatic alarm should be made, and each alarm record should be made.
Not only that, but also to the high voltage switch cabinet vacuum circuit breaker switch status and trip status for real-time monitoring and monitoring, and do a good job of monitoring records, to ensure the safety and stable operation of the high voltage power distribution system. Monitor the operating state of the cooling fan and the three temperatures of the transformer in real-time, and make good records.
In addition, the system shall be able to monitor the operation of the auxiliary equipment in real-time. Monitor active power measurement and other data, as well as floor switch cabinets.
4. Monitoring of escalators and elevators
As a piece of special equipment, the monitoring of escalators and elevators is very critical. The stability of elevator operation is directly related to the personal safety of personnel, so high attention should be paid to it. In the installation of the elevator, a qualified elevator company should provide the interface required for monitoring.
The intelligent control of the escalator mainly includes the elevator switch, fault alarm, distress alarm number check, central display of elevator position, etc. There is also elevator security monitoring, usually using a computer card reader to go in and out of the elevator personnel in real-time monitoring, but to meet certain confidentiality requirements, needs to have a specific computer card and input surface, as the proof into the security system and the elevator control system, reached the floor. The security system shall record the identity of the cardholder and the specific access time in real-time.
5. Fire alarm system linkage
When there is a fire in the building, the fire control system will send out a fire alarm signal in time. When the central management system of the building accepts the alarm signal from the large fire control system, it will have the mechanical and electrical linkage related to the fire control system, such as closing the floor fan coil, turning on the underground parking lighting, turning off the floor distribution fan and other operations. The fire registration system linkage includes a series of actions of the fire water pump and water tanks, such as the switch signal of the water pump, the water level display of the fire water tank, and the failure alarm of the fire water pump.
In the event of a fire, the relevant circuit control system will be cut off, and the corresponding fire short circuit control cabinet will be set up in the fire control center area. The circuit break function is activated when the control module receives the signal from the fire control center, and the non-fire load and the fan controlled by the building’s central management system will stop running. Under the fire control command, the relevant control fan will stop operating to ensure maximum safety.
The fire control system pressure system is the key to ensuring fire safety, when an abnormal situation, after receiving the fire signal will be fire stairs pressurized fan start, at the bottom of the fire stairs set pressure sensor, will be connected to the electric regulator valve, the building pressure in the body until the corresponding control, to meet the requirements of the fire control system. In addition, the front room pressurization system of the fire staircase must be able to ensure that the pressurized fan is activated in case of fire, and each fire staircase must be equipped with the electric fire valve required for fire protection.
The contacts used to activate the electric fire protection valve are provided by the fire control center. In case of a fire, the contact signal to the contact of two adjacent floors, the electric fire valve time is activated. The fan smoke exhaust system should also be started in time in case of fire. The smoke exhaust fire valve should be set up at the entrance of the smoke exhaust fan. When the flue gas temperature exceeds 280 degrees Celsius, the smoke exhaust fire valve will be automatically closed.
6. Alarm linkage of the security system
Security system alarm linkage is an important part of the intelligent building system. Its main function is to provide the alarm area signal and the linkage between the central management system and the security system. The Computer card reading system and the security alarm are the two main parts of the security alarm system, which also includes the analog display screen, the BAS system, the intelligent controller, and other devices. Combined with the actual needs, the system supplier will provide the corresponding card reader and coding signal, and other equipment. It is worth noting that it needs to prepare a single central workstation for security purposes.
In order to ensure the full functionality of the security system, tripod turnstiles, speed gates, and other security turnstiles must be installed at important entrances and exits, so as to effectively manage and control the flow of people. It is necessary to ensure good compatibility between the security system and other intelligent systems. In addition to restricting unwanted people, the system will send out an alarm when someone breaks in forcibly. At the same time, intercoms are set in some rooms with special needs, and the intelligent alarm controller is connected to the above-mentioned equipment. It is transmitted to the analog display screen through the bus to realize its linkage, alarm, monitoring, and other functions.
The above is about the construction of the enterprise building intelligent and efficient management skills, a set of a comprehensive system of management services, multi-disciplinary interactive intelligent system, to realize the construction of physical space and human, network, application, intelligence, and other comprehensive capabilities.
