I. Introduction
The power environment centralized monitoring system is for remote measurement, remote signaling and remote control of various parameters, images and sounds of a variety of equipment and environments such as switching power supplies, air conditioners, oil engines, batteries, high and low voltage power distribution of distributed communication bureaus (stations) , Real-time monitoring of its operating parameters, diagnosis and processing of faults, recording and analysis of relevant data, so as to achieve the purpose of fewer or unattended communication bureaus (stations), and centralized monitoring, centralized maintenance and centralized management of equipment.
2. Status of existing monitoring systems
The main transmission methods of the local network monitoring system are DDN, Modem, ISDN and 2 Mbit / s dedicated lines, etc., all of which are point-to-point transmissions. Considering the limited resources of DDN and 2 Mbit / s dedicated lines in the access network, the real-time monitoring performance of Modem and ISDN transmission methods is unstable, if point-to-point transmission is used, there are too many central equipment, and the operation and maintenance costs are too high, so most systems today Adopt 2 Mbit / s to extract time slot. The network status of the existing monitoring system is shown in the figure:
3. Monitoring system based on TCP / IP network transmission
With the development of broadband networks, it is becoming easier and easier to obtain broadband network resources at various access points. Using these broadband network resources and using TCP / IP, the access point can easily establish contact with the monitoring and management center and database. With lower costs, it can provide power, equipment room environment, safety and fire protection for the access point, etc. Information such as video images is monitored on a unified platform.
The system based on TCP / IP network transmission mode is as follows:
At the site of the telecommunications access network point, build a unified monitoring platform based on the TCP / IP site through the serial port network server, and conduct centralized monitoring of the power equipment, machine room environment, security, fire protection, and other systems in batches. It can integrate various devices, serial ports and protocols of various systems, and can directly enter the computer room of each access network point through the serial port software to implement monitoring. Due to the establishment of a unified platform, after an investment, only gradually add external serial devices, you can gradually complete the centralized monitoring of power equipment, computer room environment, security, fire protection, and various systems based on TCP / IP network structure.
4. Comparison of systems using 2Mbit / s time slot extraction and TCP / IP network
The application category adopts 2Mbit / s slot extraction method and adopts the TCP / IP network method. The cost is higher than that of a slot card, and both the SU and the data collector must be loaded with a slot card. The cost is relatively high. It is lower than the price. Only a serial server can be loaded on the data collector to achieve the communication between them. The transmission speed is slower. The transmission speed is faster. The debugging and maintenance cannot determine the cause of the failure in time, and the line and line are not clear. Where is the fault debugging and maintenance simple and convenient? The networking mode is inflexible. The networking mode is flexible. The performance characteristics of the five oriental digital products C2000
Features:
C2000 can realize the function of directly converting serial port data transmission into TCP / IP data transmission, package the serial port data of SM terminal in the system and put it on the network easily, and then transmit it to SU terminal through TCP / IP network quickly and stably, the transmission performance is more Fast and stable.
reliability:
â‘´ Dongfang Digital product C2000 adopts dual watchdog circuit design, which guarantees the normal operation of the converter and is more reliable in use;
⑵ The labor consumption of Dongfang Digital Product C2000 is small, such low power makes the converter not generate heat during operation, so that the system and peripheral equipment are not affected by any, and the operation is more stable;
⑶ Dongfang Digital actively provides test software with automatic transceiver function to customers, and urges users to continue the test of the converter through the computer for a period of time, promising that even if tens of megabytes or even hundreds of megabytes of data is transmitted, no data loss or any byte will be missed. ;
â‘· Dongfang Digital provides free replacement of the product C2000 for three months and quality warranty service for five years.
Ease of use:
â‘´ Oriental Digital Product C2000 has a virtual serial port driver, the user's software can be used normally without any modification;
⑵ For users with higher integration requirements, Dongfang Digital provides communication dynamic library and setting dynamic library, and the operation method is simple, making C2000 more convenient for users;
(3) Dongfang Digital can also provide users with program source codes under various development tools, thus making it easier for users to secondary develop products.
Subwoofer:
Speakers with working frequency response range from 20~150Hz are called full range speakers.
FAQ
Q1. What is the MOQ?
XDEC: 2000pcs for one model.
Q2. What is the delivery lead time?
XDEC: 15 days for normal orders, 10 days for urgent orders.
Q3. What are the payment methods?
XDEC: T/T, PayPal, Western Union, Money Gram.
Q4. Can you offer samples for testing?
XDEC: Yes, we offer free samples.
Q5. How soon can you send samples?
XDEC: We can send samples in 3-5 days.
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Shenzhen Xuanda Electronics Co., Ltd. , https://www.xdecspeaker.com