CN103401810A - Audio and video system of power operation monitoring center based on optical switching matrix switcher - Google Patents

Abstract

An audio and video system of an electric power operation monitoring center based on an optical switching matrix switcher comprises a signal source, wherein the signal source is connected with an optical transmitter which can convert signals sent by the signal source into optical signals, the optical transmitter is directly or indirectly connected with the optical switching matrix switcher, and the optical switching matrix switcher is directly or indirectly connected with an optical receiver and is connected with signal connection equipment through the optical receiver; the signal source is connected with the optical transmitter, and the optical transmitter is connected to the equipment room through an optical cable and is directly connected to the optical switching matrix switcher; the output end of the optical switching matrix switcher is connected to equipment through an optical cable and then connected with signal connection equipment through an optical receiver; the method overcomes the single and insufficient means of remote transmission between the power operation monitoring center and the equipment, improves the remote exchange capability of the audio and video system of the power operation monitoring center, simplifies the conversion and exchange processes of the traditional analog signals and digital signals, reduces the influence of the over-remote distance between the center and the equipment on the implementation and operation of the system, and improves the exchange efficiency and the reliability of the system.

Description

Audio and video system of power operation monitoring center based on optical switching matrix switcher

technical field

The invention relates to an audio and video system of an electric power operation monitoring center based on an optical exchange matrix switcher.

Background technique

With the continuous development of electric power informatization and the comprehensive implementation of the "three sets and five major" work, the requirements for scientific development, operating efficiency, risk prevention and control, and image display have been put forward for informatization construction, and various indicators of information business application systems are required. The data is analyzed and displayed, and video display is the most important display method. Modern display methods have higher and higher requirements for the venue, and the area of the venue is also getting bigger and bigger, and the area division is more obvious. In order to ensure the overall effect of the center, the main backstage equipment is often placed in a separate equipment room. However, most of the sites of the monitoring centers are built through the renovation of existing sites. The distance between the monitoring center and the equipment is often relatively long. The audio and video system of the monitoring center is usually limited by the transmission distance of the data line, so that the construction of the monitoring center is restricted by the site. limits.

Figure 1a-1d shows the system implementation method based on a conventional matrix switcher. The implementation of the switching system for VGA, DVI, HDMI and audio signals requires the use of different matrix switchers. This method makes the system architecture more complex, and the system implementation is subject to VGA , DVI, HDMI and other video signals are limited by the maximum transmission distance.

The use of optical transceivers to convert electrical signals into optical signals can effectively solve the problem of signal transmission distance limitations. However, there are many types and large quantities of various data lines in the monitoring center. The traditional point-to-point photoelectric conversion mode requires a large number of optical transceivers and equipment. While increasing, it also increases the point of failure.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies in the prior art, and provide a switcher based on optical switching matrix, which can effectively improve the long-distance switching capability of the audio and video system of the power operation monitoring center, and improve the switching efficiency and system reliability. The audio and video system of the power operation monitoring center,

The purpose of the present invention is achieved through the following technical solutions, the system includes a signal source, the signal source is connected to an optical transmitter that can convert the signal sent by the signal source into an optical signal, and the optical transmitter is directly or indirectly connected to In an optical exchange matrix switcher, the optical exchange matrix switcher is directly or indirectly connected with an optical receiver, and connected with signal connection equipment through the optical receiver.

The signal source is connected to an optical transmitter, and the optical transmitter is connected to the equipment room through an optical cable, and is directly connected to the optical switching matrix switcher; Connector connection signal connection equipment.

The optical signal source includes VGA, DVI, HDMI and audio signal, and the optical transmitter, optical switching matrix switcher, optical receiver and signal connection equipment are all matched with the optical signal source.

The optical switching matrix switcher is compatible with optical transmitters and optical receivers, and supports multi-rate SDI input/output, supports VGA/DVI/HDMI/audio input/output, supports multi-mode and single-mode input/output, and With RS-232 and RS-422 control ports.

The invention overcomes the single and insufficient means of long-distance transmission between the power operation monitoring center and equipment, improves the long-distance exchange capability of the audio and video system of the power operation monitoring center, and simplifies the conversion and exchange process of traditional analog signals and digital signals. Reduce the impact of the long distance between the center and the equipment on the implementation and operation of the system, and improve the exchange efficiency and system reliability.

Description of drawings

Figures 1a-1d are block diagrams of audio and video systems based on conventional matrix switchers.

Fig. 2 is a block diagram of an audio and video system based on an optical switching matrix switcher.

Detailed ways

The technology of the present invention will be described in detail below in conjunction with accompanying drawings: As shown in Fig. 2, the present invention comprises signal source 1, and described signal source 1 connects one and can convert the signal that signal source sends into the optical transmitter 2 of optical signal, this The optical transmitter 2 is directly or indirectly connected to an optical switching matrix switcher 3 , and the optical switching matrix switcher 3 is directly or indirectly connected to an optical receiver 4 , and is connected to a signal connection device 5 through the optical receiver 4 .

The signal source 1 shown in the figure is connected to the optical transmitter 2, and the optical transmitter 2 is connected to the equipment room through an optical cable, and is directly connected to the optical exchange matrix switcher 3; the output end of the optical exchange matrix switcher 3 is connected to to the device, and then connect the signal connection device 5 through the optical receiver 4.

Described optical signal source 1 comprises VGA, DVI, HDMI and audio frequency signal, and described optical transmitter 2, optical switching matrix switcher 3, optical receiver 4 and signal connection equipment 5 are all connected with described optical signal source match.

The optical switching matrix switcher of the present invention is compatible with optical transmitters and optical receivers, and supports multi-rate SDI input/output, supports input/output of VGA/DVI/HDMI/audio, and supports multi-mode and single-mode input/output output with RS-232 and RS-422 control ports.

Example:

Figure 2 shows the audio and video system of the power operation monitoring center based on the optical switch matrix switcher, which converts various signal sources into optical signals through optical transmitters, transmits them to the equipment room through optical cables, and directly connects to the optical switch matrix When the switch is output, it is transmitted to the device through the optical cable, and converted into VGA, DVI, HDMI and other signals to connect the device through the optical receiver, which not only realizes optical transmission, improves the transmission distance and reliability, but also simplifies the system architecture.

Claims (4)

1. A kind of audio-video system based on the power operation monitoring center of optical exchange matrix switcher, it is characterized in that this system comprises signal source, and described signal source connects one and can convert the signal that signal source sends into the optical transmitter of optical signal The optical transmitter is directly or indirectly connected to an optical exchange matrix switcher, and the optical exchange matrix switcher is directly or indirectly connected to an optical receiver, and is connected to a signal connection device through the optical receiver. 2. The audio-video system of the power operation monitoring center based on the optical switching matrix switcher according to claim 1, wherein the signal source is connected to an optical transmitter, and the optical transmitter is connected to the equipment room by an optical cable, directly It is connected to the optical exchange matrix switcher; the output end of the optical exchange matrix switcher is connected to the device through an optical cable, and then connected to the signal connection device through an optical receiver. 3. the audio-video system based on the power operation monitoring center of optical switching matrix switcher according to claim 1 or 2, is characterized in that optical signal source comprises VGA, DVI, HDMI and audio signal, and described optical transmitter , an optical switching matrix switcher, an optical receiver and a signal connecting device are all matched with the optical signal source. 4. The audio-video system based on the power operation monitoring center of optical matrix switcher according to claim 1 or 2, characterized in that the optical matrix switcher is compatible with optical transmitter and optical receiver, and supports multi-rate SDI Input/output, support VGA/DVI/HDMI/audio input/output, support multi-mode and single-mode input/output, and with RS-232 and RS-422 control ports.

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