This paper introduces the design and application of the monitoring system of the ACPM series AFPM series fire equipment power monitoring system. By monitoring the working status of the fire-fighting equipment power supply, the fire-fighting equipment problems that may occur are discovered in advance, which provides a reliable guarantee for the power distribution safety of the fire-fighting equipment, and can play an active role in personnel evacuation and rescue in the case of fire. H4 Led Headlight,H4 Headlight,H4 Led Headlight For Car,H4 Led Bulb For Car CHANGZHOU CLD AUTO ELECTRICAL CO.,LTD , https://www.cld-led.com
Yang Junjun
Ankerui Electric Co., Ltd. Shanghai Jiading 201801
0 Preface
The fire safety of buildings (structures) depends largely on fire-fighting equipment, and the fire-fighting equipment can work normally depending on the working state of the power supply. Fire equipment power supply is abnormal or does not work. In the event of a fire, the fire pump, fire shutter door, exhaust fan, fire elevator and other facilities will not function. The fire fighting and evacuation of the fire will not be carried out, causing serious consequences.
The fire protection equipment power monitoring system monitoring system is designed according to GB28184-2011 "Fire Equipment Power Monitoring System", which can reflect the condition of the monitored equipment power, so as to effectively prevent the fire equipment from working properly due to its power supply failure. The critical situation to maximize the reliability of the fire linkage system.
1 system software design
The fire protection equipment power monitoring system system composition is shown as in Fig. 1. The fire protection equipment power monitoring system monitoring system adopts centralized and modular design, with the monitoring of fire equipment power supply as the core, through the fire equipment power monitoring system monitoring equipment, single/three-phase (voltage/current) AC/DC monitoring module sensor, The RS485 bus communication technology collects data as a means to track, collect, store and analyze the power running information, fault information and position parameters of the fire equipment in the building, which is convenient for users to manage and monitor, and through the human-computer interaction interface. The data of the fire equipment power supply is summarized and displayed, and has many functions such as management, viewing, alarm, and printing.
(1) Establishment of a power failure. There are two main types of power failures: main power failure and backup power failure. When the main power is cut off or the voltage is insufficient, the monitoring device sends a fault signal, the main power fault indicator lights, and the fault type and time are displayed on the LCD screen. The duty officer should check whether the main electric power circuit and the main electric fuse inside the control device are blown. When the main power returns to normal, the monitoring device automatically resets. When the backup battery has insufficient voltage, the battery cable is disconnected, the battery is short-circuited, etc., the backup fault indicator lights, and the fault type and time are displayed on the LCD. The duty officer should check whether the backup voltage and the backup fuse and the backup circuit are disconnected. After the fault is removed, the monitoring device automatically resets.
(2) The establishment of a fault alarm. When the single-phase/three-phase (current/voltage) sensor communication line, sensor or sensor detects the failure of the fire power supply, the monitor sends a fault signal of the monitored circuit, illuminates the fault indicator, and issues a fault alarm signal while simultaneously in the liquid crystal The total number of faults, fault time, fault location and fault type are displayed on the screen, and the fault information is determined according to the settings. All fault locations can be queried. When the fault is removed, the fault alarm can be automatically cancelled. 
Figure 1 Fire equipment power monitoring system system components
(3) Establishment of linkage output. The monitoring host has 4 sets of linkage relays, and the control of each linkage relay can manually and automatically realize the action and non-action of the linkage relay. The output interface can be extended by monitoring the device input/output sensors through the fire equipment power monitoring system.
(4) The establishment of the event recording function. The fire equipment power monitoring system monitoring system can record the most recent 10000 fault alarm events. The event records include information such as the time and type of the event. Users can use the LCD screen and case inquiry.
Fire equipment power monitoring system monitoring system According to the diversity of power demand, fire power supply is divided into DC power, single-phase AC power, three-phase three-wire AC power, three-phase four-wire AC power. Therefore, the fire protection equipment power monitoring system monitoring system shall have a single/three-phase (current/voltage) AC/DC monitoring module sensor capable of detecting the above power types, and transmit the detected information to the fire control room by means of bus communication. In order to control and manage the uniforms of the control room staff. In this way, a complete fire protection equipment power monitoring system is formed.
2 Monitoring equipment and products
2.1 Fire equipment power monitoring system monitoring equipment
Fire equipment power monitoring system monitoring system structure, small building can use monitoring host system, as shown in Figure 2; 
Figure 2 Network topology diagram of small and medium monitoring system
A large building or group of buildings can use a centralized monitoring host plus multiple regional monitoring host systems, as shown in Figure 3. 
Figure 3 Network topology diagram of a large monitoring system
The fire equipment power monitoring system monitoring equipment adopts the real-time single/three-phase power monitoring module, which uses real-time monitoring of the similar equipment power supply, and detects the power supply information of the equipment such as the voltage, current, and opening status of the fire equipment power supply.
Therefore, it is judged whether the power supply device has fault information such as open circuit, short circuit, over voltage, phase loss, phase error and overcurrent (overload), and alarms and records the monitoring system. The system is digital. The intelligent, networked, automated and continuous monitoring features reflect the status of the power of the monitored equipment in real time and display it in a centralized manner, which can effectively avoid the critical situation that the fire-fighting equipment cannot work normally due to power failure during the fire, and maximize the protection. The reliability of the fire linkage system.
2.2 Working principle and composition
The main working principle of the control system: the fire equipment power supply working state signal is collected by the sensor, and enters the ADC acquisition module, and the collected data is calculated and processed in the central processing unit, and then uploaded to the AFPM100 monitoring host through RS485. The monitoring system analyzes and calculates the collected information and compares it with the system setting data to determine whether the fire power supply has fault conditions such as open circuit short circuit, over voltage under voltage, phase loss phase error and overload. The central processing unit passes the button panel and The LCD screen performs human-computer interaction and performs alarm, display and storage.
The monitoring system is mainly composed of a power part, a host part, a human-computer interaction part and a communication part.
The power supply part is mainly centered on the switching power supply, and is composed of a main power supply circuit and a backup power circuit. The switching power supply converts 220V AC to 24V DC, and supplies 24V power to the host's "target=_blank> machine circuit, battery and sensor. When the main power is working, it charges the backup power. When the battery is full, it automatically switches to the floating state. To offset the self-discharge of the battery and ensure the capacity of the battery. At the same time, the switching power supply supplies power to the host circuit board and supplies power to the sensor, display board and printer through the circuit board conversion. The main chip detects the working status of the main and standby power. Such as main power undervoltage, standby power disconnection, backup short circuit, backup power undervoltage.
The host part is composed of a single chip microcomputer, a program memory, a data memory, and an interface circuit. The host adopts STM32F series MCU as the core MCU, and the human-computer interaction part is mainly completed by the MCU chip. The voltage, current, switching, AD conversion, operation, and calibration in the monitoring host are all completed by the MCU. The chip can work normally with the power supply voltage between 2.7V and 3.6V, which better guarantees the reliability of the host operation. The host LCD display and button panel operation implement a series of interactive functions through the MCU.
The communication interface circuit is realized by the RS485 dedicated communication interface chip, and the information exchanges with the sensor through the RS485 bus, and the monitoring host performs the inspection and reception signal by the address according to the address in real time. The communication part transmits the instrument information through the SCI port of the MCU, and the digital information transmitted by the dedicated RS485 chip is converted into the 485 communication signal of the differential signal propagation by the optocoupler isolation signal, and the communication protocol is the MODBUS protocol.
2.3 single / three-phase (current / voltage) AC / DC monitoring module sensor
Single/three-phase (current/voltage) AC/DC monitoring module sensor can monitor single-phase or three-phase power in real time, with over-voltage, under-voltage, over-current and other alarm functions; provide one or two-way switch input function, which can be monitored Switching state; providing one relay output, which can be connected to the alarm control loop; with event storage function, the alarm can record the time, type and parameters of the alarm occurrence event, and can analyze the scene according to the alarm record to provide a basis for eliminating the fault; Communication technology, the upper computer management software can monitor the operation of the scene at all times and timely discover the alarm information.
The RS485 bus slave-specific communication interface chip has power supply, non-polarity, two-wire communication mechanism, and the standard communication protocol can be connected with various standard systems; it has high integration, network, high intelligence, reasonable operation characteristics, etc. Advantages; at the same time, the fault information is uploaded to the fire protection equipment power monitoring system for centralized display of information. The monitoring module features digital, intelligent, networked, automated and continuous monitoring.
2.4 System monitoring, protection and information uploading and other functions in one
Single/three-phase (current/voltage) AC/DC monitoring module sensors monitor single-phase or three-phase power in real time, with over-voltage, under-voltage, over-current and other alarm functions; real-time monitoring of operating data and operating status of fire-fighting power equipment To realize the pre-alarm function of fire power equipment failure; and upload to the monitoring host through RS485 bus communication, the monitoring host can judge the status of the power supply voltage, including power status such as overvoltage, undervoltage, and interrupted power supply, and indicate power failure after analysis and processing by the host. Type and emit an audible and visual alarm signal. The upper computer management software can monitor the operation status of the site at all times, timely discover the alarm information, and accurately record the time, parameters and types of the alarm occurrence. According to the alarm record, the situation can be analyzed to provide a basis for eliminating the failure of the power supply equipment.
3 Product application
The application of the fire protection equipment power monitoring system monitoring system adopts the layered distributed design idea of ​​fire power supply, implements the “3+2†layered distribution design, and mainly transmits the data of the fire-fighting equipment running to the integrated monitoring system, which is effective. Ensure the stability and reliability of power supply operation of fire-fighting equipment and implement effective supervision of building fire-fighting facilities.
The main circuit monitoring circuit diagram of the fire equipment power supply is shown in Figure 4. 
Figure 4 Fire equipment power supply main circuit monitoring circuit diagram
The fire protection equipment power monitoring system monitoring system should be based on the specific conditions of the electric circuit laying and fire-fighting equipment, and determine the form and specifications of the fire-fighting equipment power monitoring module sensor and sensor; for the single building and the monitoring points are less than 512 points At least one fire equipment power monitoring system monitoring equipment and several power monitoring module sensors and other equipment should be composed.
The application fields of the fire protection equipment power monitoring system monitoring system are shown in Table 1.
Table 1 Fire protection equipment power monitoring system monitoring system application field 
Large-scale buildings or buildings should adopt a combination of decentralization and concentration control, that is, the fire-fighting equipment power monitoring system monitoring system is applied in each fire control room or someone on duty, and the fire-fighting equipment power status and alarm information are transmitted back to the fire control center. The upper computer, unified management, monitoring, display information, the formation of fire equipment power supply integrated security monitoring.
4 Conclusion
The failure of fire-fighting equipment caused by the loss of control of fire-fighting equipment has been a frequent occurrence of things that have spread. Without reliable power supply protection, a large number of fire-fighting facilities are ineffective in the event of a fire. To ensure the reliability of fire equipment power supply, we must pay attention to the safety of fire equipment. The design of the monitoring system of the fire-fighting equipment power monitoring system, by monitoring the working status of the fire-fighting equipment power supply, discovering possible fire-fighting equipment problems in advance, belonging to “pre-alarm warning, avoiding lossâ€, providing reliable guarantee for the fire-fighting equipment's power distribution safety, In the case of fire, it plays a positive role in evacuation and rescue.
references
[1] GB28184-2011 Fire equipment power monitoring system [S]
[2] GB25506-2010 General technical requirements for fire control room [S]
[3] Ankerui Electric Co., Ltd. Product Selection Manual 2014.11 Edition.
[4] Ankerui fire equipment power monitoring system design and application atlas 2014.5 version.
About the author: Yang Junjun, female, undergraduate. Position: Now working for Ankerui Electric Co., Ltd., contact number, mobile phone, QQ
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Briefly describe the design of fire protection equipment power monitoring system in building system