Application of AFPM100 Fire Equipment Power Monitoring System in the Energy Power Center of Weinan Campus of Northeastern University
2024-08-18 18:02:05
This paper introduces the functions and significance of the AFPM100 fire equipment power state monitor through the introduction of the Energy Power Center of the University of Northeastern Anhui.
Yang Junjun
Ankerui Electric Co., Ltd. Shanghai Jiading
1 Introduction
Northeastern University is the first batch of "985" and "211" universities in the country. It undertakes the national responsibility of talent cultivation, scientific research, social services and cultural heritage innovation. With the vigorous development of emerging disciplines, the contradiction of insufficient school space is becoming more and more prominent. The land issue has become a bottleneck restricting the development of schools. Expanding the campus has become a top priority. The development of the new campus as soon as possible is the key to the school's leap-forward development during the 12th Five-Year Plan period. In 2011, the school seized the historic opportunity to purchase more than 1,300 mu of land in Minnan to build a new campus. This is an important part of the development of Northeastern University and a solid step toward the high-level research university.
In October 2014, the first phase of the Weinan Campus will be completed. After the completion of the Weinan campus, it will fundamentally solve the bottleneck problem that restricts the development of the school, improve the school space, improve the school conditions, and provide high-quality modern educational resources and living environment for the teachers and students to work and study. The Weinan Campus will focus on supporting the development of liberal arts and emerging disciplines, further optimizing the school's academic layout, and promoting the coordinated development of school scale, quality, structure, and efficiency.
The Weinan Campus strives to build a scientific and democratic academic campus, a digital campus with fast information, a elegant and beautiful civilized campus, a healthy and environmentally friendly green campus, and an open campus that interacts harmoniously with the society. It will promote the further leap of the school and serve the regional economic and social development. Take a strong engine of the new industrialization road and become another beautiful scenery in the south of Shencheng.
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:
(1). GB28184-2011 "Fire Equipment Power Monitoring System".
(2). GB25506-2010 "General Technical Requirements for Fire Control Room".
4. System composition
The Energy Power Center of the Northeastern University of Weinan Campus 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 composed of AFPM3-2AV series sensors and AFPM-ZJQ fire equipment power repeaters.
The system structure topology is as follows:
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5. Fire equipment power equipment
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5.1, AFPM100 fire equipment power monitoring background:
Main technical parameters power supply (1) Main power supply: AC220V 50Hz (allows 85%-110% range change)
(2) Backup power supply: When the main power supply is low voltage or power failure, maintain the monitoring equipment working time ≥8h
(3) The monitor provides DC24V power supply for the connected module (voltage/current signal sensor). 24-hour working communication mode Modbus-RTU communication protocol, RS485 half-duplex bus mode, transmission distance 500m (if more than can be relayed) Extend the communication transmission distance).
Monitoring capacity ≤128 points
Operational classification (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) Relative humidity of working environment: ≤95% without condensation
(4) Altitude: ≤ 2500m
(5) Pollution level: Class III, installation category: Class III main components (1) Display mode: 320*240 dot matrix liquid crystal;
(2) Input and output modules: built-in remote intelligent I/O modules;
(3) Sound and light alarm module: built-in speaker, buzzer and LED indicator;
(4) Backup power: DC24V, 24Ah
5.2, AFPM3-AVI sensor
AFPM3-AVI three-phase AC power supply voltage and current sensor (monitoring module) (hereinafter referred to as the module) can collect the voltage value and current value of the AC power supply of the monitored equipment, and upload it to the monitor (monitoring host) through RS485 communication (hereinafter referred to as the monitoring host) The monitoring host can judge the voltage and current status of the monitored power supply, such as overvoltage, undervoltage, overcurrent, etc. The data can be instructed by the monitoring host to indicate the corresponding power failure type and emit an audible and visual alarm signal.
5.3, AFPM3-2AV sensor
AFPM3-2AV three-phase AC dual-supply voltage sensor (monitor module) (hereinafter referred to as module) can collect the voltage value of the AC power of the monitored equipment, and upload it to the monitor (monitoring host) (hereinafter referred to as the monitoring host) through RS485 communication, monitoring The host can judge the voltage status of the monitored power supply, such as overvoltage and undervoltage. The data can be instructed by the monitoring host to indicate the corresponding power failure type and emit an audible and visual alarm signal.
6. System function monitoring alarm function (1) Powered circuit switch status of monitored equipment
(2) Working status of the monitored equipment power supply (voltage, current and alarm status information)
(3) Alarm response time: ≤100s
(4) Alarm sound signal: It can be manually eliminated. When there is an alarm signal input again, it can be started again.
(5) Alarm light signal: Red LED indicator light constantly controls the output function (1) Remotely operate the alarm relay of individual or all monitored devices
(2) Monitor control output: normally open passive contact, capacity: AC250V 3A or DC30V 3A
Fault alarm function (1) The connection between the monitor and the module (voltage/current signal sensor) is open and shorted.
(2) Monitor main power supply undervoltage (≤80% main power supply voltage) or overvoltage (≥110% main power supply voltage)
(3) The connection between the monitor and its separate power supply is open and shorted.
(4) 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.
(5) Fault alarm response time: ≤100s
(6) Fault alarm sound signal: manual elimination, when there is an alarm signal input again, it can be started again
(7) Fault alarm light signal: yellow LED indicator is always on
(8) During the fault period, the normal operation of the non-faulty loop is not affected by the self-test function. (1) Connection check: open and short circuit of the communication line and the split power line
(2) Equipment self-test: manual inspection or system self-test
(3) Self-testing time: ≤60s
Alarm recording function (1) Record 10000 related fault alarm information
(2) Alarm type: fault type, time of occurrence, fault description
(3) Alarm event inquiry
(4) Alarm record printing
7. Conclusion
With the development of intelligent buildings and the widespread use of electricity, people's awareness of safety is becoming higher and higher. The installation of fire protection equipment power monitoring system in public buildings is an inevitable trend of intelligent construction. The fire equipment power system is conducive to the discovery of safety hazards and timely handling of safety hazards. It has the same meaning as fire exits, fire hydrants, fire extinguishers and other equipment. Since the system was put into operation, many hidden dangers have been discovered and rectified, which provided a scientific basis for the fire management of the project and has been well received by customers.
The fire protection equipment power monitoring system of the Energy Power Center of the Northeastern University of Weinan Campus consists of the fire equipment power monitoring device AFPM100, the sensor AFPM3-2AV, and the sensor AFPM3-AVI. The AFPM100 fire equipment power monitoring system is an industrial grade hardware/software system that is independently developed by the company to receive field device signals such as fire equipment power sensor and to realize alarm, monitoring and management of the protected electrical circuit.
references
[1]. Ren Zhicheng Zhou Zhong. Principles and Application Guidelines of Power Electrical Measurement Digital Instrumentation [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
Yang Junjun
Ankerui Electric Co., Ltd. Shanghai Jiading
1 Introduction
Northeastern University is the first batch of "985" and "211" universities in the country. It undertakes the national responsibility of talent cultivation, scientific research, social services and cultural heritage innovation. With the vigorous development of emerging disciplines, the contradiction of insufficient school space is becoming more and more prominent. The land issue has become a bottleneck restricting the development of schools. Expanding the campus has become a top priority. The development of the new campus as soon as possible is the key to the school's leap-forward development during the 12th Five-Year Plan period. In 2011, the school seized the historic opportunity to purchase more than 1,300 mu of land in Minnan to build a new campus. This is an important part of the development of Northeastern University and a solid step toward the high-level research university.
In October 2014, the first phase of the Weinan Campus will be completed. After the completion of the Weinan campus, it will fundamentally solve the bottleneck problem that restricts the development of the school, improve the school space, improve the school conditions, and provide high-quality modern educational resources and living environment for the teachers and students to work and study. The Weinan Campus will focus on supporting the development of liberal arts and emerging disciplines, further optimizing the school's academic layout, and promoting the coordinated development of school scale, quality, structure, and efficiency.
The Weinan Campus strives to build a scientific and democratic academic campus, a digital campus with fast information, a elegant and beautiful civilized campus, a healthy and environmentally friendly green campus, and an open campus that interacts harmoniously with the society. It will promote the further leap of the school and serve the regional economic and social development. Take a strong engine of the new industrialization road and become another beautiful scenery in the south of Shencheng.
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:
(1). GB28184-2011 "Fire Equipment Power Monitoring System".
(2). GB25506-2010 "General Technical Requirements for Fire Control Room".
4. System composition
The Energy Power Center of the Northeastern University of Weinan Campus 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 composed of AFPM3-2AV series sensors and AFPM-ZJQ fire equipment power repeaters.
The system structure topology is as follows:
5. Fire equipment power equipment
5.1, AFPM100 fire equipment power monitoring background:
Main technical parameters power supply (1) Main power supply: AC220V 50Hz (allows 85%-110% range change)
(2) Backup power supply: When the main power supply is low voltage or power failure, maintain the monitoring equipment working time ≥8h
(3) The monitor provides DC24V power supply for the connected module (voltage/current signal sensor). 24-hour working communication mode Modbus-RTU communication protocol, RS485 half-duplex bus mode, transmission distance 500m (if more than can be relayed) Extend the communication transmission distance).
Monitoring capacity ≤128 points
Operational classification (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) Relative humidity of working environment: ≤95% without condensation
(4) Altitude: ≤ 2500m
(5) Pollution level: Class III, installation category: Class III main components (1) Display mode: 320*240 dot matrix liquid crystal;
(2) Input and output modules: built-in remote intelligent I/O modules;
(3) Sound and light alarm module: built-in speaker, buzzer and LED indicator;
(4) Backup power: DC24V, 24Ah
5.2, AFPM3-AVI sensor
AFPM3-AVI three-phase AC power supply voltage and current sensor (monitoring module) (hereinafter referred to as the module) can collect the voltage value and current value of the AC power supply of the monitored equipment, and upload it to the monitor (monitoring host) through RS485 communication (hereinafter referred to as the monitoring host) The monitoring host can judge the voltage and current status of the monitored power supply, such as overvoltage, undervoltage, overcurrent, etc. The data can be instructed by the monitoring host to indicate the corresponding power failure type and emit an audible and visual alarm signal.
5.3, AFPM3-2AV sensor
AFPM3-2AV three-phase AC dual-supply voltage sensor (monitor module) (hereinafter referred to as module) can collect the voltage value of the AC power of the monitored equipment, and upload it to the monitor (monitoring host) (hereinafter referred to as the monitoring host) through RS485 communication, monitoring The host can judge the voltage status of the monitored power supply, such as overvoltage and undervoltage. The data can be instructed by the monitoring host to indicate the corresponding power failure type and emit an audible and visual alarm signal.
6. System function monitoring alarm function (1) Powered circuit switch status of monitored equipment
(2) Working status of the monitored equipment power supply (voltage, current and alarm status information)
(3) Alarm response time: ≤100s
(4) Alarm sound signal: It can be manually eliminated. When there is an alarm signal input again, it can be started again.
(5) Alarm light signal: Red LED indicator light constantly controls the output function (1) Remotely operate the alarm relay of individual or all monitored devices
(2) Monitor control output: normally open passive contact, capacity: AC250V 3A or DC30V 3A
Fault alarm function (1) The connection between the monitor and the module (voltage/current signal sensor) is open and shorted.
(2) Monitor main power supply undervoltage (≤80% main power supply voltage) or overvoltage (≥110% main power supply voltage)
(3) The connection between the monitor and its separate power supply is open and shorted.
(4) 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.
(5) Fault alarm response time: ≤100s
(6) Fault alarm sound signal: manual elimination, when there is an alarm signal input again, it can be started again
(7) Fault alarm light signal: yellow LED indicator is always on
(8) During the fault period, the normal operation of the non-faulty loop is not affected by the self-test function. (1) Connection check: open and short circuit of the communication line and the split power line
(2) Equipment self-test: manual inspection or system self-test
(3) Self-testing time: ≤60s
Alarm recording function (1) Record 10000 related fault alarm information
(2) Alarm type: fault type, time of occurrence, fault description
(3) Alarm event inquiry
(4) Alarm record printing
7. Conclusion
With the development of intelligent buildings and the widespread use of electricity, people's awareness of safety is becoming higher and higher. The installation of fire protection equipment power monitoring system in public buildings is an inevitable trend of intelligent construction. The fire equipment power system is conducive to the discovery of safety hazards and timely handling of safety hazards. It has the same meaning as fire exits, fire hydrants, fire extinguishers and other equipment. Since the system was put into operation, many hidden dangers have been discovered and rectified, which provided a scientific basis for the fire management of the project and has been well received by customers.
The fire protection equipment power monitoring system of the Energy Power Center of the Northeastern University of Weinan Campus consists of the fire equipment power monitoring device AFPM100, the sensor AFPM3-2AV, and the sensor AFPM3-AVI. The AFPM100 fire equipment power monitoring system is an industrial grade hardware/software system that is independently developed by the company to receive field device signals such as fire equipment power sensor and to realize alarm, monitoring and management of the protected electrical circuit.
references
[1]. Ren Zhicheng Zhou Zhong. Principles and Application Guidelines of Power Electrical Measurement Digital Instrumentation [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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