Power and environment of the hottest norco series

The application of norco series industrial control computers in the centralized monitoring system of power and environment in the communication machine room

the centralized monitoring system of power equipment and environment is to telemeter, Telecommand and telecontrol various parameters, images, sounds, etc. of the power supply, air conditioning, oil engine, storage battery, high and low voltage power distribution and other equipment and environment of the distributed communication bureau (station), monitor its operating parameters in real time, diagnose and handle faults, record and analyze relevant data, So as to realize the purpose of few people or unattended in the communication bureau (station), and carry out centralized monitoring, centralized maintenance and centralized management of the equipment. In January, 1996, the former Ministry of Posts and Telecommunications issued the general requirements for the power supply system of communication bureaus (stations) (Interim Provisions) and document (1996) No. 105, which clearly pointed out that the power supply system of communication bureaus (stations) should realize centralized monitoring, gradually realize few people or unattended, and listed centralized monitoring as an essential part of the communication power supply

the centralized monitoring system of power equipment and environment based on norco series industrial computers of a system integration company has been widely used in the power environment monitoring projects of Telecom, mobile company machine rooms and base stations

system requirements:

in the early telecommunications machine room and mobile base station system, multi-level star group mode is widely used, and the line has 2m or 2m slot add/drop mode, serial communication mode, Ethernet mode, etc; In the base station system, dry contact mode, serial bus mode, 2m slot add/drop/cascade mode, etc. are also widely used, which requires the control system composed of the frequency converter on the monitoring and electrical appliances to adapt to the line resource status of each user

1. The software and hardware of the monitoring system should adopt modular structure to make it flexible and extensible, so as to meet the needs of different scale monitoring system networks and different number of monitoring objects

2. The use of monitoring system should not affect the normal work of the monitored equipment, and should not change the original function of the equipment with internal automatic control function

3. The monitoring system should have good electromagnetic compatibility. The monitoring system can work normally when the monitored equipment is in any working state; At the same time, the monitoring equipment itself should not produce electromagnetic interference that affects the normal operation of the monitored equipment

4. The monitoring system should be able to monitor a variety of equipment with different grounding requirements, and the access of any monitoring point should not damage the grounding system of the monitored equipment

5. The monitoring system shall be able to adapt to various transmission modes provided by mobile communication and shall not affect communication transmission

6. The system monitoring should have the function of self diagnosis, which can automatically recover the data disorder, communication interference, etc; The communication interruption, software and hardware failure, etc. shall be able to diagnose the failure and give an alarm in time; The failure of the monitoring system shall not affect the normal operation and control function of the monitored equipment

7. The hardware of the monitoring system shall be able to work uninterruptedly under the basic power supply provided by the local mobile communication machine rooms. When the power supply is restored, it shall be able to start automatically

8. The monitoring system should have friendly man-machine dialogue interface and Chinese character support ability; The fault alarm shall have clear visual and audible signals

9. In the monitoring system, the measurement accuracy requirements of the system composed of independent monitoring subsystem are:

DC voltage should be better than 5%

the measured voltage error of single battery shall not be greater than 5mv

other electric quantities should be better than 2%

non electric quantity should generally be better than 5%

the switching value should be 100% accurate

10. In the monitoring system, when the link exists, the alarm response time of the system composed of independent monitoring subsystem should be less than 5 seconds, the data response time should be less than 10 seconds, and the command execution time should be less than 10 seconds

11. The monitoring system should have the basic functions of alarm management, configuration management and security management

12. Image monitoring can be completed when there is a need

system introduction:

1 System structure:

the monitoring system adopts the topology structure of cascade connection, which can be composed of the centralized monitoring center SC, the regional monitoring center SS, the monitoring unit Su, and the monitoring module SM. The setting of the centralized monitoring system for the power and environment of the communication Bureau (station) can be relatively independent, and it is a subsystem of local management. In a local range, it can enter the local mobile management center through the centralized monitoring

2. Design of centralized monitoring center SC:

the centralized monitoring center connects to multiple regional monitoring centers SS through data interface B, and can realize all the functions of multiple regional monitoring centers SS on the same operating platform and the same interface. It has remote signaling, telemetering, remote control and remote adjustment functions, alarm functions, configuration functions, safety management functions, report functions, communication management functions, display functions and printing functions

3. Front end processor

front end processor, also known as front-end processor and monitoring host, is mainly used to process telemetry and remote signaling data from each monitoring module and issue remote control and remote adjustment commands to the monitoring module. It is responsible for handling the details of data communication with the monitoring module, and undertakes the orderly transmission of data from different monitoring modules to the emergency interrupt key safeguard stroke of other software modules of the monitoring system; Main unit weight: about 45kg Functions of

due to the core role of the monitoring host, it requires high reliability. Generally, norco series industrial computers are used, and their basic configuration is as follows:

chassis: rpc-900 (4U, multi drive position rack mounted chassis)

CPU card: norco-740ve (P4 level industrial CPU card)

CPU: P4 1.8g

memory: 512M (DDR 266)

hard disk: 80g*8

network interface: 10m/100m, Tcp/ip protocol

display: 15 "

operating system: Wandows 2000/nt

Database System: Micosoft SQL Server

Options:

1) moxa multi serial port card, which depends on the communication mode of the monitoring module;

2) special image and voice acquisition compression card, which depends on the needs of audio and video monitoring.

system features:

the software and hardware of the monitoring system adopt a modular structure. Be careful that the injection into the room has flexibility and scalability, so as to Adapt to the requirements of different scale monitoring system networks and different number of monitoring objects

the monitoring system realizes the functions of remote signaling, telemetering, remote control and remote adjustment of various equipment in the distributed power and environment system. It can monitor the operation status of the system and equipment in real time, record and process relevant data, detect faults in time, and notify personnel to deal with them, so as to realize the centralized monitoring, maintenance and management of power and environment, Improve the reliability of power system and the safety of mobile communication equipment

practice has proved that the monitoring system