This article is through the Harbin Huanan City modern commercial building materials "target=_blank> building materials home procurement Expo Center. Divided into market trade show area, comprehensive supporting business service area, warehousing logistics distribution area, life service supporting area and other functional areas, each functional area will For textiles, garments, chemicals, electromechanical "target=_blank> electromechanical, building materials" target=_blank>Building materials decoration and decoration, small commodities, agricultural machinery and equipment" target=_blank>Mechanical equipment and accessories, agricultural and sideline products and native products, automotive and automotive supplies 12 major industries such as medicine and health products, hardware, leather and leather, electronics, etc., provide display and trading platform, and provide logistics, information, e-commerce, exhibition, inspection and testing, brand promotion, research and development, design, trade and training for the settled merchants. , financial, communications and other production services, at the same time for the trading market operators, employees, buyers, suppliers and other practitioners and customers, provide the necessary living services, become a modern integration of multiple functions in one The Trade and Logistics Park has become the largest in the Northeast and has the largest variety of products. Service features the most complete, highest degree of modernization of trade and logistics city complex.
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:
1.1. GB28184-2011 "Fire Equipment Power Monitoring System".
1.2. GB25506-2010 "General Technical Requirements for Fire Control Room".
4. System composition
Harbin Huanan City Modern Business Logistics City Project consists of fire equipment power status monitors and sensors. The communication bus of this project has access to four communication buses. After the bus is connected hand in hand, the bus is connected to the wall-mounted background to form the main artery of the fire protection equipment power monitoring system. 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:
The main technical parameters
power supply
1 main power supply: AC220V 50Hz (allows 85%-110% range change)
2 standby power supply: when the main power supply is low voltage or power failure, maintain the monitoring equipment working time ≥ 8h
3 monitor provides DC24V power supply for connected modules (voltage/current signal sensor)
Work system
24-hour work schedule
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
1Workplace: Fire control room, or parallel installation 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 level: level III, installation category: level III
Main components
1 display mode: 320*240 dot matrix liquid crystal;
2 input and output modules: built-in remote intelligent I / O module;
3 sound and light alarm module: built-in speaker, buzzer and LED indicator;
4 standby power: DC24V, 24Ah
5.2, AFPM-ZJQ fire equipment power repeater
The AFPM-ZJQ firefighting equipment power monitoring repeater (hereinafter referred to as the repeater) is suitable for systems where the monitor (host) and the field sensor (monitor module) communicate far. The repeater not only increases the communication distance of the system, but also supplies power to the connected field sensor (monitor module) to solve the attenuation of the communication signal and power output due to the long distance. The repeater transmits the power information of the connected field module and the repeater to the monitor (host) through the communication bus. This product complies with GB 28184-2011 "Fire Equipment Power Monitoring System" and GB 25506-2010 "Fire Control Room General Technical Requirements" standard.
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 monitored equipment power loop switch status 2 monitored equipment power supply operating status (voltage, current and alarm status information)
3 alarm response time: ≤100s
4 alarm sound signal: can be manually eliminated, when there is alarm signal input again, can start again 5 alarm light signal: red LED indicator is always on
Control output function
1 Remotely operate the alarm relay of individual or all monitored equipment. 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, shorted 2 Monitor mains undervoltage (≤80% mains voltage) or overvoltage (≥110% mains voltage)
3 The connection between the monitor and its separate power supply is open and short. 4 When the above fault occurs in the monitor, it can emit a sound and light fault alarm signal which is obviously different from the monitoring alarm signal. 5 Fault alarm response time: ≤100s
6 fault alarm sound signal: manual elimination, when there is alarm signal input again, can start again 7 fault alarm light signal: yellow LED indicator is always on 8 during fault, the normal operation of non-fault loop is not affected
Self-test function
1 Connection check: disconnection and short circuit of communication line and split power line 2 Self-test of equipment: manual inspection or system self-test 3 Self-test time: ≤60s
Alarm recording function
1 Record 10000 related fault alarm information 2 Alarm type: fault type, occurrence time, fault description 3 alarm event query
4 alarm record printing
6. 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.
Harbin Huanan City Modern Business Logistics City fire equipment power monitoring system consists of fire equipment power monitoring device AFPM100, fire equipment power repeater AFPM-ZJQ, sensor AFPM3-2AV. 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
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:
1.1. GB28184-2011 "Fire Equipment Power Monitoring System".
1.2. GB25506-2010 "General Technical Requirements for Fire Control Room".
4. System composition
Harbin Huanan City Modern Business Logistics City Project consists of fire equipment power status monitors and sensors. The communication bus of this project has access to four communication buses. After the bus is connected hand in hand, the bus is connected to the wall-mounted background to form the main artery of the fire protection equipment power monitoring system. 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:
The main technical parameters
power supply
1 main power supply: AC220V 50Hz (allows 85%-110% range change)
2 standby power supply: when the main power supply is low voltage or power failure, maintain the monitoring equipment working time ≥ 8h
3 monitor provides DC24V power supply for connected modules (voltage/current signal sensor)
Work system
24-hour work schedule
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
1Workplace: Fire control room, or parallel installation 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 level: level III, installation category: level III
Main components
1 display mode: 320*240 dot matrix liquid crystal;
2 input and output modules: built-in remote intelligent I / O module;
3 sound and light alarm module: built-in speaker, buzzer and LED indicator;
4 standby power: DC24V, 24Ah
5.2, AFPM-ZJQ fire equipment power repeater
The AFPM-ZJQ firefighting equipment power monitoring repeater (hereinafter referred to as the repeater) is suitable for systems where the monitor (host) and the field sensor (monitor module) communicate far. The repeater not only increases the communication distance of the system, but also supplies power to the connected field sensor (monitor module) to solve the attenuation of the communication signal and power output due to the long distance. The repeater transmits the power information of the connected field module and the repeater to the monitor (host) through the communication bus. This product complies with GB 28184-2011 "Fire Equipment Power Monitoring System" and GB 25506-2010 "Fire Control Room General Technical Requirements" standard.
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 monitored equipment power loop switch status 2 monitored equipment power supply operating status (voltage, current and alarm status information)
3 alarm response time: ≤100s
4 alarm sound signal: can be manually eliminated, when there is alarm signal input again, can start again 5 alarm light signal: red LED indicator is always on
Control output function
1 Remotely operate the alarm relay of individual or all monitored equipment. 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, shorted 2 Monitor mains undervoltage (≤80% mains voltage) or overvoltage (≥110% mains voltage)
3 The connection between the monitor and its separate power supply is open and short. 4 When the above fault occurs in the monitor, it can emit a sound and light fault alarm signal which is obviously different from the monitoring alarm signal. 5 Fault alarm response time: ≤100s
6 fault alarm sound signal: manual elimination, when there is alarm signal input again, can start again 7 fault alarm light signal: yellow LED indicator is always on 8 during fault, the normal operation of non-fault loop is not affected
Self-test function
1 Connection check: disconnection and short circuit of communication line and split power line 2 Self-test of equipment: manual inspection or system self-test 3 Self-test time: ≤60s
Alarm recording function
1 Record 10000 related fault alarm information 2 Alarm type: fault type, occurrence time, fault description 3 alarm event query
4 alarm record printing
6. 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.
Harbin Huanan City Modern Business Logistics City fire equipment power monitoring system consists of fire equipment power monitoring device AFPM100, fire equipment power repeater AFPM-ZJQ, sensor AFPM3-2AV. 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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