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 front square project of Huaihua High-speed Railway South Station, the realization of the function of the fire control equipment power monitoring system and its significance are expounded.
Yang Junjun
Ankerui Electric Co., Ltd. Shanghai Jiading
Abstract: 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 front square project of Huaihua High-speed Railway South Station, the realization of the function of the fire control equipment power monitoring system and its significance are expounded.
Key words: fire equipment power supply; monitoring system; AFPM100/B; Huaihua high-speed rail;
0 Overview
Huaihua High-speed Railway South Station Front Square is located at the east side of the southern end of Hutian South Avenue, Hecheng District, Huaihua City, Hunan Province - Gaochun South Railway Station, Huaihua City, Gaochun Road. The project has 2 floors above ground and 2 underground floors. The underground two floors are 4.5 meters high, and the underground floor is 5.5 meters high (partially 6 meters, 6.5 meters). The floor height is 4.5 meters and the second floor is 4.5 meters high. The total construction area is 98,800 m2; the above-ground construction area is 4000 m2; the underground construction area is 94,800 m2. The building height is 12 m.
This project is the AFPM series of 152 fire equipment power monitoring modules in the front square of Huaihua High-speed Railway South Station. It is located on the second floor from the ground floor to the second floor above ground. The project is mainly responsible for monitoring the voltage status of fire-fighting equipment distributed in the front square of the South Railway Station, and promptly reminding the duty-keeping personnel in the control room to prevent the fire-fighting equipment from being put into normal use when the fire occurs.
There are 152 AFPM series of fire protection equipment power monitoring module on the front square of Huaihua High-speed Railway South Station. It is installed in the distribution box of the front square of the South Railway Station. The field instrument is connected to the fire equipment power repeater of the control center by bus, and then connected to the AFPM100/B wall-mounted fire equipment power monitoring system.
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 in the front square of Huaihua High-speed Railway South Station, and promptly alert the relevant personnel to eliminate these hidden dangers to prevent fire-fighting equipment from being available when fire occurs. 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
Huaihua High-speed Railway South Station front square fire equipment power monitoring system project consists of fire equipment power monitoring background, fire equipment power repeater, fire equipment power detector.
The communication bus of this project is connected to 9 communication buses. All detector modules are connected to the fire equipment power repeater, which is connected to the wall-mounted background to form the aorta of the fire 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 main power supply undervoltage (≤80% main power supply voltage) or overvoltage (≥110% main power supply voltage) monitor and its split power supply connection line open, short circuit
♦ 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
♦ Normal operation of non-faulty loops is not affected during faults
5.4, ​​self-test function
♦ Connection check: open and short circuit of communication line and split power line
♦ Equipment self-test: manual inspection or system self-test
♦ Self-testing time: ≤60s
5.5, alarm record function
♦ Record 10000 related fault alarm information
♦ Alarm type: fault type, time of occurrence, fault description
♦ Alarm event query
♦ Alarm record printing
5.6, printing function
The monitoring system can print Chinese characters and print alarm events and time, fault events and time.
5.7, silence
In the event of an alarm such as an alarm or a fault, the speaker of the monitoring device will give a corresponding alarm sound to prompt, press the “mute†button to terminate the alarm, and the alarm light will be green. During the period, the staff can handle the faults. Everything returned to normal and the alarm light went out. If a new fault occurs, the silence indicator will turn off and the speaker will sound an alarm again.
6 Conclusion
Huaihua High-speed Railway South Station front square fire equipment power monitoring system consists of fire equipment power monitoring device AFPM100/B, fire equipment power repeater, fire equipment power detector. AFPM fire equipment power monitoring system is a computer monitoring and control system independently developed by Ankerui. It can be widely used in intelligent buildings, high-rise apartments, hotels, restaurants, commercial buildings, industrial and mining enterprises, national key fire protection. Units and petrochemical, cultural and educational health, finance, telecommunications and other fields. AFPM100 fire equipment power status monitor is the core of AFPM fire equipment power monitoring system. The monitoring equipment is connected with multiple sensors through RS485 bus to form a distributed fire equipment power monitoring system to monitor the working status of fire equipment power in real time. The controller adopts centralized and modular design, and is equipped with sensors to track, collect, store and analyze the operating parameters, fault information and position information of the monitored fire equipment power supply, which is convenient for users to manage and monitor; The interactive interface displays the data of the fire equipment power supply, and has many functions such as management, viewing, alarm, and printing. The device has reasonable structure, high reliability, strong function, convenient maintenance, high cost performance, and the system interface is intuitive and easy to use.
references
[1]. Ren Zhicheng Zhou Zhong. Principles and Application Guide of Digital Measurement of Electric Power Measurement [M]. Beijing. China Electric Power Press. 2007. 4
[2]. Zhou Zhong. Application of power meter in electric energy metering of large public buildings [J]. Modern Building Electric 2010. 6
About the Author
Yang Junjun, female, undergraduate. Position: Now working for Ankerui Electric Co., Ltd., contact number, mobile phone, QQ
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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