Intelligent Building of the Building Automation System



There is now building two transformers and a diesel generator sets, designed as follows:
2.1 charged equipment list (Table 1)

System Name Quantity Unit Remarks variable distribution system distribution substation and distribution transformer box 2 sets 2 sets 1 set of diesel generators

2.2 Power Monitor and Control system is mainly set features:

(1) test run parameters such as voltage, current, power, transformer temperature, for the normal operation of the measurement management, accident analysis and fault data; (2) monitor the electrical equipment operating status, such as high and low pressure into the Circuit Breaker and other types of switching current points, co-state, is running normally, if found fault, automatic alarm;

(3) of the building all the equipment electricity consumption records and statistics, including electric power electricity and lighting, on the peak load, daily power, average power consumption and other indicators for analysis and management; (4) for various electrical equipment repair, maintenance, maintenance management.

2.3 System Monitoring point list (Table 2)

Control Point List Table 2



Describe the type of device control point name --------------------------

Transformer high-temperature alarm AI AO DI DO

Current of 1 × 2 AC current transducer

Voltage of 1 × 2 AC voltage transducer

Active Power Active Power Transmitter 1 × 2

1 × 2 power transmitter power

Power factor 1 × 2 power factor transducer

The main circuit state 1 × 10

Total 10 12 intelligent nodes control box configuration HW-B5941B HW-BA5942B low voltage power distribution control box smart nodes each one

Battery Voltage 1

Generator Commitment 1 × 2

Status Monitoring and Alarm 1 × 2

Oil Tank 1

Total 42 intelligent nodes control box configuration: HW-B5943B backup power intelligent node controller

2.4 Selection

According to HW-BA5000 building automation control systems, use HW-BA5941B, HW-BA5942B low voltage power distribution control box smart nodes and one each in Taiwan and the HW-BA5943B backup power intelligent node controller one.

2.5 Draw the total BAS control network diagram (abbreviated)

2.6 Draw the control of distribution system schematic (Figure 2, Figure 3)

The Promise of Digital Input DI DO digital output polarity AI Analog Input Analog Output AO

In the figure, on-site sensors and actuators connected via connections intelligent control box I / O terminals, signal lines RVS-2 × 1.5MM2 line, power line BV-2 × MM2. Controller modular design, with two standard RL-45 interface can be used to connect to the network monitor, network form LON bus architecture, and Lon Words bus connected with twisted pair.

Of course, the above mentioned design step is to meet their functional needs of each subsystem must have the monitoring system design, there is an important part of the historian is the integration of the system, which constitutes an interrelated and coordinated with each other , integrated unified whole. Specifically, in order to achieve the building of water, electricity, fire, security and other kinds of equipment, comprehensive monitoring and management, computer networking and interface technology subsystems Zhong scattered on different floors in the direct digital Kongzhi Qi Lian Jie up, achieved by networking the various subjects of central monitoring and management-level computer and information and communication between subsystems is a distributed intelligent control system, which the network structure breaks through the traditional distribution system of two nets, three-tier network concept system control and management of all equipment can be connected by Lon Words with field bus, the control device can be realized between the point of communication, composed of the identity of the communication network.