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With the rapid development of the power industry, the number of unattended substation surge. But the distribution of a wide range of power plants, distance, and more in the wild, can not be timely understanding of the situation, not easy to manage. Remote monitoring system provides a new solution for power system.
Using advanced television monitoring security equipment, can effectively strengthen the unattended substation management, intuitive and timely reflect the important place of scene, enhanced security measures, faithfully displayed and recorded in various places the scene image data is a powerful tool for the management of modern power system.
According to the requirements of the construction unit, combined with the actual situation, the design of the program.
The system includes a, B two unattended substation and a central control room, to achieve control room of a, B two station video monitoring and audio intercom function. Each plant within each set two fixed indoor color cameras, one outdoor full range color cameras and in the control room and each power installation intercom system. Due to a, B two stations and the central control room distance are more than 5km, intended in a station using microwave transmit audio and video signals and control signals to achieve in the central control room of a station monitoring point, real-time image display, PTZ camera control and intercom function; quasi in the B station profit with the existing cable, with the optical transmit audio and video signals and control signals, in the central control room of the B station monitoring point, real-time image display, PTZ camera control and intercom function. Central control room setting a eight way digital hard disk video host control, to achieve the functions of the A, B two stations monitoring picture display, record and PTZ camera control and network control etc.; another installation radio station, to achieve control chamber and the intercom function.
The system to ensure all levels of sound and image signals are clear and vivid, satisfactory picture processing quality; to ensure the quality of equipment, the system is stable and reliable in control, can continue to work day and night, and has convenient operation and easy to learn and use the characteristics of; for the user to provide a variety of monitoring and control functions; system has a redundant expansion, may at any time extension and upgrade; in ensuring the above several premise, careful selection, scientific configuration and reducing the production cost.
System design basis
1 "code for design of civil building electrical appliances" JGJ/T16-92
2 "safety and prevention engineering procedures and requirements"
3 "security technology to guard against industry standards" CT-100
Two, system characteristics
1 the use of advanced monitoring equipment, complete functions, easy to operate;
2 based on the development of the existing optical cable equipment, in the premise of ensuring the effectiveness of savings;
3 main control room through the matrix system can monitor the situation at any time;
4 record and check all the monitoring points.
5 PTZ camera control action;
6 in the control room and the station can be realized between the intercom
7 external device monitoring device beautiful appearance;
8 the whole system has a certain capacity expansion;
Three, system composition
The system is mainly composed of the following parts:
Front camera section;
Signal transmission part;
Central control section;
Power supply part;
Talkback section
The composition and function of the sub control points are introduced respectively:
The front camera A, B two stations each station set up 2 monitoring points and 1 indoor outdoor all-round monitoring, indoor monitoring installation of Japan SANKO SD-965 type color dome camera, the image is clear, beautiful appearance; outdoor full range monitoring point using the GANZ YCH-03 high resolution color camera, matching Japan COMPUTAR 6 times three variable lens, zoom, zoom, aperture, and installation of domestic V3939 type all-weather head shield machine, can full rotation and strengthen the protection of the camera and the lens; AV-2000 type indoor digital hard disk video decoder will control signal of the control host from the central control room into a level signal to control the PTZ camera.
Equipment technical characteristics:
1 color dome camera: Japanese SD-965 SANKO
High definition 460 lines, minimum illumination 1.5LUX
1/3 inch format CCD image
Automatic electronic shutter
Backlight compensation
Camera angle adjustable
Adjustable lens focal length
Beautiful shape, easy to install
DC12V, 300 mA
Size: 102mm * 85mm
2 high definition color video camera: Japan YCH-03 Computar
1/ 3 'CCD image sensor,
The 480 line resolution, ultra low illuminance 0.64Lux
Adjustable brightness and white balance
PAL standard
DC12V
3.6 times zoom lens: Japanese EZH6X8.5MG SPACECOM
1/ 2 ', CS interface
Focal length: 8.5 -51MM
4 outdoor full tilt shield machine: VICAN V3937
Horizontal 350 degrees Celsius, vertical + 45
15KG load
With all-weather shield, wiper, heating, fan
5 indoor decoder: domestic AV-2000
The control signal transformation of PTZ camera control into electrical signals, PTZ camera control action
Can control the lights, wipers
AC220V input,
DC12V, AC24V, AC220V output

Signal transmission part
Signal transmission part is the system image signal, control signal channel. In this system, all the front camera to the central control room of the distance are 5KM.
According to the situation of A station, the microwave transmission mode can be selected. Three sets of camera output video signal by 3 sets of Taiwan Baxter PT-609 high power audio microwave transmission device with directional antennas, audio signals are transmitted to the control room, video and audio microwave receiving device with directional antenna 1 and Taiwan Taiwan Baxter PT-609 high power installed, real now and in the control room for up to 5km audio frequency transmission function. Install remote controlled receiver of a domestic RXRC-101R type with AV-200 indoor decoder, will come from the central control room RXRC-101T type remote control transmitter from the control signal change into level signals to achieve control of the front-end.
According to the B station, may use the existing optical transceiver with video and control signal. 3 sets of camera output video signal through 1 of single fiber regarded audio data optical transmitter and receiver and 1 of dual channel video optical transmitted to the control room, implementation and control room for up to 5km video and audio transmission; with AV-201 type outdoor decoder, will from the control room control signal to transform for the signal level, to achieve control of PTZ camera.
The requested image signal transmission key in signal after passing through the transmission system, does not produce significant noise, distortion, and ensure that the original image signal from the image signal output by the camera) clarity and gray levels did not decrease significantly.
Equipment technical characteristics:
1 audio microwave transmit / receive device: Taiwan Baxter PT609+603
Emission band modulation, 3000MW
directional antenna
Transmission distance 5KM
Size 65mm 180*95*
2 remote control transmitter / receiver: made in China RXRC-101T/RXRC-101R
Wireless remote control, data transmission distance of 100KM;
Can control up to 255 monitoring points;
Achieve PTZ camera, camera, lighting control, hanging rain;
Transmit power: 5W
3 single audio data multiplexing transmitter: China VD1200T/R-SL2-ST
Single mode 1310nm;
Maximum transmission distance 20KM;
1 way video /1 two-way audio /1 way two-way simultaneous transmission through 1 optical fiber;
4 single video multiplexing transmitter: Chinese VV550T/R-SL2-ST
Single mode 1310nm;
Maximum transmission distance 20KM;
2 way video through 1 optical fiber real-time transmission;
Central control section
With the development of IT technology, the application of digital technology in the traditional security monitoring industry is becoming more and more extensive. In introduced to PC Gigabit speeds, millions of megabytes of memory, perfect decompression technique based on digital hard disk video recorder that integrates video, picture segmentation, main frame, the monitor, the Chinese character adder and a controller alarm products function, is a new concept of integrated digital control machine, it has the following advanced features:
High integration: a computer, a display, no need to consider the compatibility between multiple devices
Easy to operate: Chinese, characteristics of the icon interface (Instant Chinese interpretation), only with the mouse control
High resolution: satisfactory display (real-time image segmentation), video, playback effect, no transmission loss
Mass storage: real time effective video up to a month
Lossless media: hard disk continuous use for up to 10 years, the use of video media cycle
Video recording, video recording, video recording, video recording, video recording, saving video resources and saving search speed.
Plug and play: international general standard, optional upgrade and expansion
Individual needs: Hardware self matching, software settings change at any time, personal password protection
Data transfer: backup, print, networking common
Auto upgrade: with the computer software and hardware upgrades, performance significantly improved
Digital video recorders focus on "fast, stable, smooth, and practical", and its meaning is as follows (details see table below):
Fast: real time display, video, playback. Fast operation, fast search.
Stability: the system sets the balance between the pursuit of compression ratio, image quality, storage time and other indicators.
Smooth: the core of the software and hardware design is perfect, effectively reflect the machine's "assembly line video operation".
Practical: in the computer technology, image processing technology, monitoring technology between the three refinement of the application of the industry's requirements; good human-computer interaction, the use of satisfaction.