DSA Remote Video Monitoring System

Introduction

DSA Remote Video Monitoring System is mainly composed of three parts, the field device of substation (or called Substation Device), communication device and control center supervisory control terminal (or called Master-Station Device).
This system is based on techniques such as video transfer, multi-host control, alarm response, video monitor, image compression, network communication, telecontrol and telemetry, etc. It realizes monitoring (local, remote or through network), alarming, querying, controlling and directing (on emergency occasions) via various communication channels such as telephone line (PSTN, DDN, ISDN), fiber optics (2M), microwave, ratio (extended frequency), Wide Band (10M), and so on.
It has become one of the most important parts of the MIS. When accident happens, it will alarm and handle the situation immediately, and pop out corresponding GUI automatically.

DSA Remote Video Monitoring System is applicable for substations, power plants and public places of various voltage levels.

DSA Remote Video Monitoring System and DSA Distributed Substation Automation System can be dynamically connected to be an integrated system.

Functions

* DSA Remote Video Monitoring System can be seamlessly linked with substation local supervisory control system. It also can be connected to the MIS conveniently.
* Alarm

• Instantly capture accident and abnormal events, and automatically pop up corresponding pictures.
• Automatically pop up corresponding pictures after remote control operation, substation entry, smog warning, or manual field operation.

* Video can be indexed and played back conveniently.
* Warning message can be sent to the person in charge by SMS automatically.
* Support 352576,352288,176288 resolution.
* Video compression adopts MPEG2 or MPEG4 digital coding. Support TCP/IP network protocol.

• MPEG2 compression technique provides high-resolution image with DVD quality. But the channel transmission bandwidth must be higher than 1Mb/s.
• MPEG4 has the advantages of good compression quality, high compression ratio, and occupying less channel resources. When CIF format (352288) is adopted, the transfer rate is 25 frames/s and the typical value of code-stream is only 200Kbps.

* Programmable group switching function can switch all output-channels in one operation under special situation.

Technical Parameters

• Video
       Resolution :  720576
       Compression Standard: MPEG2
       Transfer Rates: 25 Frames/S
       Signal Format: PAL
       Video Signal Standard: GB3274-82
       Signal Voltage Level: 1Vp-P
       Interface: BNC,75
• Audio
       Compression Standard:    A PCM
       Frequency Response Scope:    300-3400HZ
       Output Resistance:   600 Ohm
• Field device
      Video inputs:>16
  Signal Standard: Complex, PAL, 1Vpp, 75ohm
  Warning Inputs: No Limit
  Peripheral Equipment Interface: RS485/RS232
  Communication Interface: 10M/100M Ethernet, Fiber E1 2M and above Data Interface
• System feature
    Number of monitors: No Limit
  Supervisory Terminals: No Limit
  Number of users monitoring the same field device: No Limit
      Number of the field devices real-time monitored on the same screen: <16
      Warning Response Time: Front Terminal< 0.3 S, Surveillance Terminal<1s
      Control Response Time: <1s
      Hard disk Recording: >24h
      Network Protocol: TCP/IP,UDP
      Software: WINDOWS Standard GUI

Engineering Application

It has been widely used in substations, control centers, and Dispatch centers of the power system, and has gained good reputation.