Design scheme of intelligent power consumption community

Electrical design scheme of intelligent community

Foreword:

As one of the basic needs of human survival, housing has gradually developed into a well-off society. With the improvement of living standards and the development of science and technology, more and more new intelligent residential quarters have become the focus of residential construction.

At present, intelligent residential quarters are mostly composed of several multi-storey or high-rise houses. The functions of household appliances, communication equipment, security and disaster prevention equipment are integrated in the family, and the widespread use of electronic equipment also puts forward some new requirements for electrical safety design. The main parts are as follows:

1 building automation control system

Basic functions of 1. 1

1. 1. 1 Control, monitor and measure the construction equipment to realize the process control automation centered on the optimal control of the equipment; Disaster prevention automation centered on prevention and control;

1. 1.2 monitoring controller and remote terminal unit;

1. 1.3 human-machine interface for operators;

1.1.4 video display integration of construction equipment monitored on CRT;

1. 1.5 data acquisition and historization;

1. 1.6 early warning management

Trend analysis of 1. 1.7

1. 1.8 report generation

1.2 open function

Building automation system should have basic open functions, including seamless connection with ActiveX, DDE, ODBC, API, Access and other standard technologies. The system can communicate with these systems, so as to realize related linkage control and facilitate property management and system integration.

1.2. 1 Configuration principle of system controller:

The controller configuration should follow the following principles, otherwise it will be regarded as a major technical deviation and may be regarded as a waste standard: the system should take the central station as the core, and DDC and the central station realize data communication. DDC should be located near the controlled object and divided into areas according to functions and management categories. Each building's air supply and exhaust, water supply and drainage, lighting and electricity consumption measurement should have their own independent DDC control, that is, each building should be equipped with at least four DDC controllers that can operate independently. DDC for metering shall provide 24-hour uninterrupted power supply. The system has 29 partitions (outdoor lighting is an independent partition), and each partition can be managed independently. The control point that each controller can run independently should be less than 120, so that the influence of system failure can be controlled within a certain range. Controller I/O points should be redundant, and the reserved amount of all types of I/O points should not be less than 15%. The controller should adopt standard modular design, and the controller should have standard open protocols, such as LON communication protocol. In order to ensure that the maintenance of a single device will not affect the operation of other devices, all modules should support hot plug function, and the replacement or maintenance of a single module will not affect the operation of other devices in the same area.

1.2.2 System control and monitoring contents:

VRV air conditioning unit; Power transformation and distribution system; Lighting system; Elevator system; Water supply and drainage system.

(1)VRV air conditioning system.

The following basic monitoring contents are realized through the communication interface of VRV unit: start/stop status; Fault alarm; Electric energy metering. The ambient temperature is detected by setting an ambient temperature sensor to access DDC.

(2) Ventilation system

The basic monitoring content of the fan: the start-stop state of the air supply and exhaust fan; Fault alarm of air supply and exhaust fan; On-off control of air supply and exhaust fan; Monitoring of carbon monoxide in underground garage.

(3) Power transformation and distribution system

Basic monitoring contents: electric energy metering; Measurement of transformer temperature rise state; Cooling fan control. Through the communication interface provided by the distribution monitoring system and the diesel generator controller, it is connected with the building automatic control system to realize the integrated management of the distribution system and the generator.

(4) Public lighting, road lighting and landscape lighting system.

Description of working state of monitoring point: lighting circuit state; Lighting switch control. The illumination front end is equipped with an illumination sensor, and the automatic control of illumination is realized according to the illumination value of the sensor.

(5) Elevator monitoring system.

Working condition description of monitoring point: elevator fault alarm; Power switch status; The up and down state of the elevator.

(6) Water supply and drainage system.

Basic monitoring contents: monitoring the high liquid level of living pool/tank; High level monitoring of sewage pits and sump pits; Water pump start-stop control; Monitor the running state of the water pump; Pump fault alarm monitoring; Manual/automatic condition monitoring of water pump; Operation control of water pump; Water flow switch state of water pump.

(7) Communication interface.

The integrated management of main electromechanical equipment is realized through communication interface, including the following interfaces (integrated system): communication interface of distribution system; Communication interface of fire fighting system; Communication interface of safety system; Communication interface of VRV unit; Communication interface of generator set.

2 system integration scheme

2. 1 system overview

Building automation system, as the management platform of building mechanical and electrical equipment, should be an efficient and integrated BMS management system, which can integrate building control system, fire alarm system and security automation system on EBI platform as required, which is suitable for building characteristics and advanced control and management requirements: (1) network and information integration; The BAS system will be integrated with the upper computer IBMS system through the central host computer. (2) Data exchange and integration (data exchange and integration of different computing and facility systems using industry standard protocols).

System integration is to integrate the information of weak current subsystem of Fortune Center into a network system by using advanced technology, so as to realize the reasonable sharing and distribution of information resources in the whole building. On this basis, we strive to improve the working efficiency of building management personnel, reduce the operating cost of equipment, and pursue the best property management mode, so as to provide an optimized working and living environment for building owners and users and meet the current needs of intelligent building management.

2.2 Demand analysis

The intelligent system of the community mainly includes the following subsystems:

(1) fire alarm system interface.

(2) Security system interface (CCTV monitoring system, burglar alarm system, patrol system).

(3) Interface of all-in-one card management system (access control system, parking lot management system).

(4) Interface of building automation system.

(5) Background broadcast system interface.

(6) Interface of property management system.

Each system is independent of each other, lacking a platform software that can communicate with other systems, and unable to realize the functions of data sharing and system linkage. It is necessary to establish a complete set of integrated software to integrate all subsystems on one platform for comprehensive management.

2.3 system design

2.3. Unified monitoring, control and management of1weak current subsystem.

The integrated system uses the same network environment and the same software interface to monitor the scattered and independent weak current subsystems, and can see the environmental parameters such as temperature and humidity, operating conditions of air conditioners, elevators and other equipment, electricity consumption, water consumption, ventilation and lighting conditions of buildings, relevant information of security and patrol, smoke temperature sense of fire fighting system, number of parking spaces in parking lot system and so on.

2.3.2 Realize cross-subsystem linkage.

After the weak current system is integrated, from the perspective of integration platform, the original independent subsystem is like a system, and the linkage relationship can be established whether the information point and the controlled point are in a subsystem or not. The comprehensive handling of events is impossible in an independent weak current system, but it can be realized in an integrated system according to actual needs, which greatly improves the integrated management level of buildings. It should be pointed out that due to industry regulations (such as security, fire protection, etc.), some subsystems can be linked by themselves or must be linked within subsystems, so there is no need for linkage in the integrated system to avoid conflicts.

2.3.3 Provide an open data structure and share information resources.

Establish an open work platform, collect and translate the data of each subsystem, establish the service program of the corresponding system, accept the service requests of all authorized users on the network, and realize data sharing. For example, record the historical information of equipment number, equipment model, equipment address code, commissioning time and equipment running state change, such as start-stop time, alarm record, fault record, maintenance record, etc.

It has a process self-programming time response program and an event response program to realize the process automation control of the electromechanical equipment in the community. For example, the optimal start-stop and energy-saving operation control of air conditioners and cold and heat sources, the event program control of lighting circuits, and the automatic replenishment of domestic water tanks.

This information can be classified, recorded and processed by equipment, floor and function, and can also be classified, counted and processed by time interval, equipment category, floor and function.

The integrated central control system can compile the above data into a report and provide it to managers. By analyzing the data report, the operating cost can be saved and the material demand and maintenance demand of buildings can be predicted.

2.3.4 Integration of content.

Establish the interface between system integration software and BA system. You can monitor the state parameters of the BA system. The interface between system integration software and CCTV system is established. You can monitor the real-time images of the system and watch videos. The development and further comprehensive application of building equipment integrated management system in building management system can be gradually expanded and continuously improved. Such as property management system, information resource management system, equipment maintenance system and financial management system.

Main configuration requirements

The system should include a server and a workstation.

Provide network equipment required for integration:

The interfaces provided shall at least include: fire alarm system interface, security system interface (CCTV monitoring system, burglar alarm system, patrol system), one-card management system interface (access control system, parking lot management system), building automatic control system interface and property management system interface.

Conclusion: After experiencing the resource and energy crisis and environmental pollution, people finally realize clearly that there is only one earth, and we should live in harmony with nature, which is related to the survival and development of mankind. Intelligent residence can not only provide people with a comfortable and convenient environment, but also have the effect of sustainable development and energy saving. Intelligent residence should meet the needs of harmonious coexistence between man and nature, and it is a building that meets the needs of future development.