The computer room environmental monitoring system is a computer network composed of computer network technology, database technology, communication technology, automatic control technology, new sensor technology, etc. Intelligent and high-efficiency technical means, the system monitoring objects are mainly equipment such as power and environmental equipment in the computer room (such as: power distribution, UPS, air conditioning, temperature and humidity, water leakage, smoke, video, access control, lightning protection, fire protection systems, etc.).
1. Background requirements for environmental monitoring systems
With the continuous development of information network technology, various network equipment rooms of different sizes, types and quantities of equipment are widely distributed in the areas where users' branches are located. Changes in the physical operating environment, power distribution, equipment operating conditions, personnel activities, and firefighting conditions of a large number of unattended computer rooms, including possible emergencies, cannot be discovered and handled in time, and it is difficult to be effectively anticipated, prevented and avoided. Therefore, a complete computer room environment monitoring system is very important for computer rooms, IDCs and other places.
The computer room environment monitoring system is to ensure the safe, stable and efficient operation of the organization, to ensure the good operation status of the network equipment and the service life and safety of the equipment, and to realize the maximum investment benefit of the user. Humidity, water leakage, air dust content and many other environmental variables, UPS, air conditioning, fresh air, dust removal, dehumidification and many other equipment operating status variables, 24-hour real-time monitoring and intelligent adjustment control to ensure the stability of the network operating environment and network softness. Security of hardware resources, equipment and related information and data assets.
2. Project content of environmental monitoring system
2.1 Power distribution system
It mainly monitors the three-phase phase voltage, phase current, line voltage, line current, active power, reactive power, frequency, power factor and other parameters of the power distribution system and the status monitoring of the power distribution switch. When some important parameters exceed the danger limit, an alarm will be issued.
2.2 UPS power supply (including DC power supply)
Through the communication protocol and intelligent communication interface provided by the UPS manufacturer, the running status of the internal rectifier, inverter, battery, bypass, load and other components of the UPS is monitored in real time. Once any component fails, the power environment monitoring system in the computer room will automatically Call the police. The monitoring of the UPS in the system will always adopt the mode of only monitoring and not controlling.
2.3 Monitoring content
2.3.1 Real-time monitoring of the operating status and parameters of UPS rectifier, inverter, battery (battery health detection, including voltage and current values), bypass, load and other parts (the specific content of monitoring will vary according to different brands and agreements. different).
2.3.2 Visually display the overall operation data of the UPS through charts;
2.3.3 Once the UPS has an alarm, the status will turn red, and an alarm event will be generated to record and store, and the phone will dial, SMS, email, sound and light and other external alarms as soon as possible.
2.3.4 Historical curve record, which can query the historical curve of the corresponding parameters within one year and the parameter values ??at specific time (including maximum and minimum values), and can export the historical curve to EXCEL format, which is convenient for administrators to fully understand the operating status of the UPS .
2.4 Air conditioning equipment
Through real-time monitoring, it is possible to comprehensively diagnose the operating status of the air conditioner, monitor the operating status and parameters of various components of the air conditioner (such as compressors, fans, heaters, humidifiers, dehumidifiers, filters, etc.) The management function remotely modifies the setting parameters of the air conditioner (temperature, humidity, upper and lower limits of temperature, upper and lower limits of humidity, etc.), and restarts the precision air conditioner. Even if there is a slight fault in the air-conditioning unit, it can be detected by the power environment monitoring system of the computer room, and measures can be taken in time to prevent further damage to the air-conditioning unit.
2.5 Temperature and humidity of the equipment room
In each important position of the computer room, it is necessary to install a temperature and humidity detection module to record the temperature and humidity curve for the management personnel to query. Once the temperature and humidity are out of range, the alarm will be activated immediately to remind the management personnel to adjust the working setting value of the air conditioner in time or adjust the equipment distribution in the equipment room.
2.6 Water leak detection
There are two types of water leakage detection systems: positioning and non-positioning. The so-called positioning type refers to a leak detection system that can accurately report the specific leak location. The opposite is true without locating the system, which can only report leaks, but not the location. The system consists of sensors and controllers. The controller monitors the status of the sensors, and immediately uploads the information to the monitoring PC when it finds water conditions. There are two types of leak detection sensors: wired detection and surface detection. Line detection is mainly used in the equipment room. Line detection uses a leak detection rope to surround the flooded part. After water leakage occurs, the water contacts the detection line and an alarm is issued.
2.7 Smoke alarm
The smoke detector has built-in microcomputer control, fault self-checking, which can prevent false alarms and false alarms, and output pulse level signals, relay switches or on and off signals. When smoke enters the ionization chamber, it will destroy the electric field balance relationship of the smoke detector, and the alarm circuit detects that the concentration exceeds the set threshold and sends an alarm.
2.8 Video Surveillance
The computer room environmental monitoring system integrates video monitoring, and the image adopts MPEG4 video compression method, which integrates multi-screen viewing, video playback, video remote transmission, triggering alarm, PTZ control, and equipment linkage. For linkage, once the video alarms, it can be linked with other devices at the same time, such as dual-detection probes and door magnets to record.
2.9 Access Control Monitoring
The access control system is composed of a controller, an inductive card reader, an electric control lock and a door opening button (networked system plus a communication converter. The card reading method is a non-contact card reading method, and the system effectively monitors and manages access personnel.
2.10 Lightning protection system
The real-time monitoring of the working conditions of the lightning protection module is realized through the switch value acquisition module, and usually there are only two monitoring states: on and off.
2.11 Fire protection system
The monitoring of the fire protection system is mainly the collection of fire alarm signals and gas spray signals, and does not control the fire protection system.
3. System functions of the environmental monitoring system
3.1 Monitoring/Monitoring Functions
The traditional computer room management adopts a system of regular inspections every day, such as inspections in the morning and evening, and some core operating parameters of the equipment are manually recorded and archived. The data obtained in this way is limited to a specific period of time, and the work is monotonous and labor-intensive. The real-time monitoring function of the computer room environment monitoring system can solve this problem.
The system has centralized monitoring and management of the entire system through remote signaling, telemetry, remote control and remote adjustment, the so-called "four remotes", to achieve the goal of less people on duty and unattended.
The system can collect the operating parameters, working status and alarm information of each device in real time. The system can monitor intelligent and non-intelligent equipment, and accurately realize the four remote functions of remote signaling, telemetry, remote control and remote adjustment. That is, it can not only truly monitor the various working states and operating parameters of the monitored on-site object equipment, but also remotely perform convenient control operations on the monitored on-site objects as needed, and can also remotely control the on-site objects with configurable operating parameters. parameters are modified.
The system sets all levels of control operation authority. If necessary and authorized accordingly, system administrators can configure system monitoring objects, personnel permissions, etc.; system operators on duty can remotely control or adjust relevant equipment in order to handle related events or adjust the working status of equipment to ensure equipment in the computer room, etc. run at its best.
3.2 Alarm function
a) No matter what interface the monitoring system console is in, it should automatically prompt an alarm in a timely manner, and display and print the alarm information. All alarms shall use visual and audible sound and light alarm signals.
b) Different levels of alarm signals should use different display colors and alarm sounds. Critical alarms are flashing red, major alarms are flashing pink, and general alarms are flashing yellow.
c) When an alarm occurs, the maintenance personnel shall confirm the alarm. If there is no confirmation within the specified time (determined according to the communication line), the relevant personnel can be automatically notified by telephone or mobile phone according to the set conditions. After the alarm is confirmed, the sound and light alarm should be stopped, and when a new alarm occurs, the sound and light alarm function should be triggered again.
d) It has multi-location and multi-event concurrent alarm function, no alarm information is lost, and the alarm accuracy rate is 100%.
e) The system can screen and filter the alarms that do not need to be responded to.
f) The system can query, count and print various historical alarm information as needed. Various warning messages cannot be changed anywhere.
g) In addition to the alarm function for the monitored object, the system can also perform self-diagnosis (for example, system power failure, communication line interruption, etc.), and can visually display the fault content, so that the system is stable and has stable self-protection capabilities.
h) The system has the function of convenient and quick alarm query and processing according to the user's requirements.
i) System alarms can be configured according to different requirements, such as alarm severity, alarm masking, alarm threshold value, etc.
j) It has the function of electronic closed-loop order dispatch, and realizes the whole process of fault handling of order dispatch, order receipt, maintenance, order resumption, and order cancellation.
3.3 Configuration management function
a) When the system is initially built, the equipment is changed or added or decreased, the system management and maintenance personnel can use the configuration function to configure the system to ensure the consistency of the configuration parameters with the actual equipment.
b) When the system duty personnel or system management and maintenance personnel have personnel changes, the configuration function can be used to authorize the relevant personnel accordingly.
c) When the system is running, system management and maintenance personnel can also use the system configuration function to configure the operating parameters of the monitoring system to ensure the efficient and accurate operation of the monitoring system.
d) System management and maintenance personnel can also use the system configuration function to configure the display mode, position, size, color, etc. of equipment parameters to achieve the effect of beautifying the interface.
e) The configuration management operation is simple, convenient, and has good scalability. It can be configured online without interrupting the normal operation of the system.
f) The monitoring system has the function of remote monitoring and management, which can configure and modify on-site parameters in the center or remotely.
g) The system is configured by area and specialty, and displayed by area and specialty.
3.4 Security management function
a) The system provides multi-level passwords and multi-level authorization to ensure the security of the system; the system records all operations for query; the system manages the handover of the on-duty personnel;
b) The monitoring system has equipment operation records. The equipment operation records include the operator's employee number, the name of the equipment being operated, the operation content, and the operation time, etc.
c) The monitoring system has records of operator login and logout time.
d) The monitoring system is fault-tolerant, and cannot cause the system to make errors, exit or crash due to user misoperation and other reasons.
e) The monitoring system has the function of self-diagnosing its own hardware failures, communication failures between monitoring levels, and software running failures, and gives alarm prompts.
f) The system has the function of self-starting for incoming calls.
g) The system has the function of system data backup and recovery.
3.5 Report Management Function
a) The system can provide functions such as query, report, statistics, classification, and printing of all equipment operation history data, statistical data, shift log, repair work order and graph for analysis and research by power supply operation and maintenance personnel.
b) The system also has the function of user-defined reports.
c) This system can manage the information related to the monitored equipment. Including various technical indicators of the equipment, price, date of manufacture, operation, maintenance and repair, the installation and wiring diagrams of the equipment, etc. It can collect, display and record the status and operation data of each computer room monitoring point in the jurisdiction to provide a full range of information query services for managers.
4. System application of environmental monitoring system
In the information construction, the operation of the computer room is at the core of the information exchange management. All equipment in the computer room must operate normally at all times. Otherwise, once a certain equipment fails, it will pose a threat to data transmission, storage and system operation, and will affect the operation of the global system. If it cannot be handled in time, it is more likely to damage the hardware equipment, delay the operation of the business system, and cause immeasurable economic losses.
Judging from the actual use in some data centers at this stage, the management advantages of the computer room environmental monitoring system have been reflected, helping users solve many environmental security problems in the computer room. Most of the systems in the computer room can be managed through the monitoring platform, which greatly saves manpower and material resources. The construction of the weak current integrated monitoring project in the computer room optimizes the combination of four basic elements such as the environmental structure, equipment content, service requirements and management mode of the computer room, as well as their internal connections, thereby providing a stable and reliable, reasonable investment, efficient and convenient, Comfortable and safe computer room environment. The computer room environment monitoring system is providing a reliable technical guarantee for the normal operation of the computer room of the large data center.
The computer room environmental monitoring system supports secondary development and design. The system is mature and stable, with strong compatibility and expansion, high functional integration, and convenient operation. It is suitable for network computer room projects such as banking, taxation, government, customs, radio and television, communications, and electricity.
