Through the introduction of the Nongken Building Project, this paper focuses on the functions and significance of the AFPM100 fire equipment power status monitor.
Yang Junjun

Ankerui Electric Co., Ltd. Shanghai Jiading

1 Introduction

Nongken Building (Economics Building) is an energy-saving renovation of existing buildings with a building area of ​​20245.6 square meters. The address of Jinzhou Economic and Trade Building is located in a famous military destination and is approved to establish a National Science and Technology Achievement Transformation Service Demonstration Base (Jinzhou). It has convenient transportation and large passenger flow. It is a concentrated place for tourism, shopping and leisure. It has a twenty-story building with modern architectural style.

2. System requirements analysis

Detecting the overvoltage, undervoltage, phase loss, power interruption and other signals of the fire equipment power supply, sound and light signal alarm, accurately report the fault line address, and monitor the change of the fault point. Store various fault and operational test signals to display system power status.

3. Reference standard

Recently, in order to increase the intensity of power supply monitoring and control of fire-fighting equipment, the state has successively formulated or revised a number of relevant standards and regulations to strengthen the prevention of power supply for fire-fighting equipment. There are:

3.1. GB28184-2011 "Fire Equipment Power Monitoring System".

3.2. GB25506-2010 "General Technical Requirements for Fire Control Room".

4. System composition

The Nongken Building Project consists of fire equipment power status monitors and sensors. The communication bus of the project is connected to three communication buses. The bus is connected to the wall-mounted background in the fire-fighting distribution box, and the main artery of the fire-fighting equipment power monitoring system is formed. The sensor in the cabinet is powered by 24V DC through the host. The above describes a set of power supply monitoring system for fire protection equipment with stable signal and reliable accuracy. The system networking is divided into three layers:

1) Station management

The management personnel of the station control management team for the fire equipment power monitoring system is the direct window of human-computer interaction and the uppermost part of the system. Mainly composed of system software and necessary hardware equipment, such as display screen, UPS power supply and so on. The monitoring system software calculates, analyzes and processes various types of data information on the site, and responds to the on-site transportation situation by means of text, digital display, sound, and indicator light.

Monitoring host: used for data collection, processing, and data forwarding. Provides data interfaces for system management, maintenance, and analysis within and outside the system.

UPS: Ensure the normal power supply of the computer monitoring system, and ensure the normal operation of the station management management equipment when the whole system has power supply problems.

The background monitoring device is set in the control room.
2) Network communication layer

Communication medium: The system mainly adopts flame-retardant shielded twisted pair cable, and realizes real-time communication between field device and host computer by RS485 interface and MODBUS communication protocol.

Power medium: The 24V power supply is supplied to all sensors in the field by the host computer through the flame-retardant two-core cable, thus ensuring that the module can keep working under any circumstances.

3) Field device layer

The field device layer is a data acquisition terminal, mainly for the AFPM3-2AV series sensor. The system structure topology is as follows:



5. Fire equipment power equipment

5.1, AFPM100 fire equipment power monitoring background:

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