This paper briefly describes the composition principle of the fire protection equipment power monitoring system, and analyzes the design basis and related specifications of the fire equipment power monitoring system in the application. Finally, through the introduction of the Ankerui fire equipment power monitoring system in the trial room project of the People's Court of Long'an District, Anyang City, the realization of the function of the fire control equipment power monitoring system and its significance are expounded.
Yang Junjun An Kerui Electric Co., Ltd. Shanghai Jiading
0 Overview
The court of the People's Court of Long'an District, Anyang City is located at the intersection of Beacon Road and Shuguang Road, Anyang City, Henan Province. The project is the AFPM series of 9 fire-fighting equipment power monitoring modules in the court of the People's Court of Long'an District, Anyang City. It is located on the ground floor to the ground floor. This project is mainly responsible for monitoring the voltage status of fire-fighting equipment distributed in the building, and promptly reminding the duty-keeping personnel in the control room to prevent fire-fighting equipment from being put into normal use when the fire occurs.
Anyang City Longan District People's Court Trial Court has fire equipment power monitoring module 9 AFPM series installed in the building distribution box. The field instrument is connected to the AFPM100/B wall-mounted fire-fighting equipment power monitoring system of the control center by bus.
1 User requirements
This project requires the fire equipment power monitoring system to monitor the faults and abnormal conditions of the power supply of the fire equipment of the trial court of the Long'an District People's Court in Anyang City, and promptly alert the relevant personnel to eliminate these hidden dangers and prevent fire equipment from being fired. The power is available and the device is not ready for use.
To facilitate on-duty monitoring and management, the central host should have the following main functions:
1) According to the power distribution drawings, monitor the fire equipment of each circuit and master the operation of the power supply of the fire equipment.
2) Fire equipment power monitoring system can realize a unified monitoring platform, which can obtain real-time data of all parameters in the system; intelligent management of the entire fire equipment power monitoring system can detect relevant information such as the voltage status of the fire equipment power supply. Therefore, it is judged whether the power supply of the fire-fighting equipment has fault information such as open circuit, short circuit, over voltage, under voltage, phase loss and error.
3) The host should monitor the alarm and fault alarm events with real-time printing of event number, monitoring location, event nature, alarm parameters and date and time data. The alarm event data should be stored separately, with an independent query interface, and can not be modified for fault liability analysis.
4) In addition to the above provisions, other functions and performance of the mainframe shall comply with the national standard GB 28184-2011 "Fire Equipment Power Monitoring System" and GB 25506-2010 "Fire Control Room General Technical Requirements" standard.
2 reference standard
In recent years, in order to prevent fire-fighting equipment from being used properly during the fire, the state has successively formulated or revised a number of relevant standard specifications to strengthen the monitoring of fire-fighting equipment. There are:
1.1. GB25506-2010 "General technical requirements for fire control room", in the provisions of 5.7 fire power monitors should meet the following requirements:
a) It should be able to display the working status and fault alarm information of the power supply and backup power of the fire-fighting equipment.
b) It shall be able to transmit the working status and undervoltage alarm information of the power supply and backup power of the fire-fighting equipment to the fire control room graphic display device.
1.2. GB 28184-2011 "Fire Equipment Power Monitoring System"
1.3. GB 50116-2013 "Fire Automatic Alarm System Design Specification"
3 system components
Anyang City Longan District People's Court Trial Chamber fire equipment power monitoring system project consists of fire equipment power monitoring background, fire equipment power detectors.
The communication bus of the project is connected to a communication bus, and all the detector modules are directly connected to the wall-mounted background to form the aorta of the fire-fighting equipment power monitoring system. AFPM100/B fire equipment power monitoring system adopts two-layer structure networking mode of fire equipment power status monitor + voltage / current sensor. The whole monitoring system is comprehensive in function, safe and reliable, accurate in detection and cost-effective. The system uses RS485 network communication internally and provides Modbus-RTU communication protocol to meet the connection of other standard systems. The above-mentioned set of signals is stable and accurate. Fire equipment power monitoring system. The system networking is divided into three layers:
1) Station management
The management of the station control management system for the electrical fire 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 touch 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 graphics, digital display, sound, and indicator lights.
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 shielded twisted pair cable, realizes real-time communication between field device and host computer by RS485 interface and MODBUS communication protocol.
3) Field device layer
The field device layer is a data acquisition terminal, mainly for the AFPM100 series fire equipment power monitoring detector.
The system structure topology is as follows:
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4 Fire equipment power equipment
4.1, AFPM100 fire equipment power supply background:
The main technical parameters
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power supply
♦ Main power supply: AC220V 50Hz (allows 85%-110% variation)
♦ Backup power supply: When the main power supply is low voltage or power failure, maintain the monitoring equipment working time ≥8h
♦ The monitor provides DC24V power to the connected module (voltage/current signal sensor)
Work system: 24-hour work system
communication method
Modbus-RTU communication protocol, RS485 half-duplex bus mode, transmission distance of 500m (if it exceeds the transmission distance through the repeater).
Monitoring capacity ≤ 128 points
Operational rating
1 Daily duty class: real-time status monitoring, history query.
2 Monitoring operation level: real-time status monitoring, history query, remote reset of detector.
3 System management level: real-time status monitoring, history query, remote reset of detectors, remote modification of detector parameters, system parameter setting and modification of monitoring equipment, operator addition and deletion.
Environmental conditions
1 Workplace: Fire control room, or installed side by side with fire control console
2 Working environment temperature: -10 ° C ~ +55 ° C
3 Working environment relative humidity: ≤95% no condensation
4 Altitude: ≤2500m
5 Pollution degree: Class III, installation category: Level III
4.2, AFPM100 series instruments
4.2.1. Real-time monitoring of two three-phase voltages;
4.2.2, with overvoltage, undervoltage, phase loss, phase error, overcurrent (only with current detection products) alarm;
4.2.3, provide one or two channels (only monitor two-way three-phase AC voltage products) switch input function, can monitor the switch state; (see module selection for details)
4.2.4. Provide one relay output, which can be connected to the alarm control loop;
4.2.5. With event storage function, the alarm can record the time, type and parameter of the alarm occurrence. According to the alarm record, the situation can be analyzed to provide a basis for eliminating the fault;
4.2.6. Using fieldbus communication technology, the host computer management software can monitor the operation of the site at all times and timely discover the alarm information. The standard MODBUS protocol can be connected to various standard systems via the RS485 interface;
4.2.7, high integration, network, high degree of intelligence, reasonable operating characteristics;
5 system function
5.1, monitoring alarm function
♦ Monitored device power loop switch status
♦ Working status of the monitored equipment power supply (voltage, current and alarm status information)
♦ Alarm response time: ≤100s
♦ Alarm sound signal: can be manually eliminated, can be started again when there is alarm signal input again
♦ Alarm light signal: red LED indicator is always on
5.2, control output function
♦ Remote control of alarm relays for individual or all monitored equipment
♦ Monitor control output: normally open passive contact, capacity: AC250V 3A or DC30V 3A
5.3, fault alarm function
♦ The connection between the monitor and the module (voltage/current signal sensor) is open and shorted
♦ Monitor mains undervoltage (≤80% mains voltage) or overvoltage (≥110% mains voltage)
♦ The connection between the monitor and its remote power supply is open and shorted.
♦ When the above fault occurs in the monitor, it can emit an acousto-optic fault alarm signal that is clearly different from the monitoring alarm signal.
♦ Fault alarm response time: ≤100s
♦ Fault alarm sound signal: manual elimination, can be started again when there is alarm signal input again
♦ Fault alarm light signal: yellow LED indicator is always on
♦ During the failure, the normal operation of the non-faulty circuit is not affected. Hardware Business Network Information Center) http://news.chinawj.com.cn
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