KR100747771B1 - System for high-performance image monitoring - Google Patents

Abstract

A high-performance image monitoring system is provided to accurately cope with conditions by sharing images in a monitoring photographing/control unit for monitoring and controlling the images photographed in a guard post, and a monitoring unit and a command unit which are installed in another troops. Image monitoring equipment is constructed in a monitoring photographing/control unit(10). The monitoring photographing/control unit(10) monitors a seashore and interworks with a radar. The first and the second monitoring units and a command unit(40) receive data acquired in the monitoring photographing/control unit(10).

Description

High Performance Video Surveillance System {SYSTEM FOR HIGH-PERFORMANCE IMAGE MONITORING}

1 is a block diagram illustrating a high performance video surveillance system of the present invention.

Figure 2 is a block diagram showing a surveillance shooting / control unit according to the present invention

3 is a block diagram showing a first monitoring unit according to the present invention;

4 is a block diagram showing a state in which a spare line is formed in a first monitoring unit according to the present invention;

Figure 5 is a block diagram showing another embodiment of the first monitoring unit according to the present invention.

6 is a block diagram showing a second monitoring unit according to the present invention;

7 is a block diagram showing another embodiment of a second monitoring unit according to the present invention;

8 is a block diagram illustrating a command unit according to the present invention.

* Explanation of symbols for main parts of drawing *

C1, C2, C3, C4: Codec C5, C6: Spare Codec

H1, H2, H3, H4: Hub P1, P2, P3, P4: Image terminal

R1, R2, R3: Router R5, R6: First and Second Spare Router

L: Spare line T1, T2, T3, T4: Internet telephone

10: surveillance shooting / control unit 11: video surveillance equipment

11a: long-range thermal surveillance camera 11b: daytime optical camera

11c: Rangefinder 11d: Camera Drive

11e: Panorama camera 12: Micro display equipment

13: Exhibition / control equipment 13a: Image distributor

13b: storage / playback equipment 13c: encryption equipment

13d: uninterruptible power supply 13e: radar interlocking device

13f: control unit 14: transmission and reception converter

15: wireless base station 16: short-range transmission / reception modem

20: first monitoring unit 21: first monitoring unit base station

22: first transmission / reception conversion apparatus 23: the first image distributor

24: first monitoring unit exhibition equipment 24a: first monitoring unit storage / playback equipment

24b: Cryptographic Equipment 24c: Uninterruptible Power Supply

25: first preliminary transmission and reception inverter 30: second monitoring unit

31: second monitoring unit base station 32: second transmission and reception conversion device

33: second video distributor 34: second monitor display equipment

34a: second monitoring unit storage / playback equipment 34b: encryption equipment

34c: uninterruptible power supply 35: streaming server

36: second preliminary transmission and reception inverter 40: command unit

41: near field transmission / reception modem 42: command display device

50: high performance video surveillance system

It is a high-performance video surveillance system that is installed in military units to monitor the coast. More specifically, it is possible to monitor remote and short distances. More specifically, it is possible to accurately locate location by sharing image data and interlocking with radar. Not only can the situation be dealt with, but the preliminary network for data sharing between the monitoring departments enables data sharing even in case of communication loss, and video conferencing between each unit enables rapid situation reporting and command system. A high performance video surveillance system.

In general, in order to prevent the invaders from occurring near the coast, the Navy deploys guards at every post, and the deployed guards use the naked eye or a telescope to determine the presence of ships or spies near the coast and wire them to the monitoring unit. It is made in the form of reporting, and also in the form of monitoring using a radar to monitor the ship or spy.

However, in the case of monitoring only by the radar without the connection with the camera as described above, it is not easy to know the exact position when the ship or spy ship wrecked, and moreover, even if the camera and the radar are linked, using a general camera or an infrared camera When it was difficult to properly grasp the objects in the distance.

In addition, there is no means to transmit the guard's surveillance video to the unit through the camera at the post, and the unit receives the report of the video taken at the post only by wire. It exposes a problem that cannot be dealt with quickly.

The present invention for solving the above problems is possible to remotely monitor and day and night monitoring using the video surveillance equipment installed in the guard post, in particular, surveillance shooting / control unit and other units for monitoring and controlling the image taken in the guard post The purpose is to provide a high-performance video surveillance system that can accurately deal with the situation because video monitoring can be done by the surveillance and command departments.

Another object of the present invention, since the radar and the video surveillance equipment works in conjunction, when a suspicious target occurs in the radar, it is possible to check the image by high-performance video surveillance system that can increase the accuracy of the surveillance to provide.

It is still another object of the present invention to provide a high-performance system capable of sharing data by establishing a preliminary network between the first and second monitoring units when communication between one of the first and second monitoring units is lost. Provide a video surveillance system.

Still another object of the present invention is to provide a high-performance video surveillance system capable of quickly reporting and conducting a situation since video conferencing and voice communication between units are possible.

The high-performance video surveillance system of the present invention for achieving the above object can monitor the video surveillance equipment installed in the guard post and the data acquired from the video surveillance equipment in the guard post to monitor the imaging and distance. Construct a micro display device, send a control signal to interlock with the drive control and radar of the video surveillance equipment, form an exhibition / control equipment to display and store the data obtained from the video surveillance equipment, It forms a codec and a hub for compressing and converting data obtained from surveillance equipment, and has a video terminal that can be connected to the hub for video conferencing and an internet telephone for voice communication. In order to transmit data wirelessly with a router, a transmitter / receiver and a wireless base station for signal conversion And a surveillance photographing / control unit which is connected to the hub and forms a near field transmission / reception modem for transmitting data to a near field unit, and a first monitoring unit base station capable of receiving data transmitted wirelessly by the surveillance photographing / control unit. And a codec for forming a first transmit / receive converter, a router and a hub for receiving data converted by the first transmit / receive converter, and converting and decompressing data received from the hub. A first monitoring unit storage / reproducing apparatus that forms a first image divider so that the data distributed and decompressed by the codec can be distributed on the screen and displayed on the screen, and the data can be reproduced and stored in the first image divider. A first surveillance consisting of an encryption device installed to encrypt data transmitted and received and an uninterruptible power supply capable of supplying power in case of power failure A first monitoring unit which is connected to the exhibition equipment and the hub and is formed to allow video conferencing and an internet telephone for voice communication, and which can receive data wirelessly transmitted by the surveillance shooting / control unit. Forming a second monitoring unit base station and a second transmission and reception conversion apparatus, forming a router and a hub for receiving the data converted by the second transmission and reception conversion apparatus, and converts the signal received from the hub and decompression A second video divider to form a second video divider so that the video codec and the data converted and decompressed by the codec are displayed on the screen, and the second video divider can reproduce and store the data distributed from the second video divider. Cryptographic equipment installed to encrypt secondary storage / playback equipment and data transmitted / received and uninterruptible power supply to supply power in case of power failure A second monitoring unit comprising an apparatus, a video terminal connected to the hub, a video terminal formed for video conferencing, and an internet telephone for voice communication; and a streaming server for transmitting data to the outside. 2 forming a short-range transmission / reception modem and a hub capable of receiving data converted from a short-distance transmission / reception modem of the monitoring unit and the surveillance photographing / control unit, and converting and compressing the signal between the video terminal and the Internet telephone connected to the hub. It consists of a codec for releasing and a command unit constituting a command display device capable of expressing the data converted by the codec.

Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, the present invention includes a surveillance photographing / control unit 10, first and second monitoring units 20 and 30, and a command unit 40.

First, looking at the surveillance shooting / control unit 10, as shown in Figure 2 to form a video surveillance equipment 11 to shoot the coast from the guard post, the guards working on the guard post the video surveillance equipment (11) The micro display device 12 is provided so that the captured image can be viewed.

Here, the video surveillance apparatus 11 forms a remote thermal surveillance camera 11a having a surveillance distance of 25 to 35 km so that the remote image can be captured day and night using infrared rays, and daytime optics used for daytime photography. A distance measuring device (11c) having a detection distance of 50 to 25,000 m so as to measure the distance between the camera (11b) and the espionage ship or the ship, and the remote surveillance camera (11a) and daytime optical camera (11b) ) And a camera driver 11d capable of dividing the angle into 0.05 ° so as to reduce an error rate during measurement, and a panoramic camera 11e for capturing the omnidirectional area of the surveillance area.

In addition, the display / control device 13 is provided to drive the radar and display the acquired data, and to drive the radar in conjunction with the acquired data based on the acquired data.

The exhibition / control equipment 13 includes an image distributor 13a for distributing the data acquired from the video surveillance equipment 11 and a storage / reproducing apparatus for storing and reproducing the distributed image. (13f) to form a cryptographic equipment (13c) for maintaining a military secret and an uninterruptible power supply (13d) that can supply power for a predetermined time in the event of a power outage, in conjunction with the video surveillance equipment (11) radar ( Radar interlocking device 13e capable of operating (not shown in the figure) and a control unit 13f for controlling the driving of the camera driving device 11d of the video surveillance apparatus 11, and the radar At the same time to increase the efficiency of the coastal monitoring due to the interlocking, even if not a miniature, it is possible to view the control and acquired data of the video surveillance equipment 11 in the monitoring / control unit 10.

On the other hand, the codec (C1) and the hub (H1) for the signal conversion and compression of the obtained data to transmit the data obtained by the video surveillance equipment 11 to the outside is formed.

Here, the hub H1 is connected with a normal video terminal P1 capable of video conferencing and a normal Internet telephone T1 capable of voice communication.

In addition, the hub (H1) and wireless to the router (R1) and the transmission / reception conversion apparatus 14 to transmit the data obtained from the video surveillance equipment 11 to the first and second monitoring unit (20, 30) The base station 15 is formed so that data can be transmitted to the first and second monitoring units 20 and 30 by wireless communication.

In addition, it is configured to transmit data via the short-range transmission / reception modem 16 connected to the hub H1 via the command unit 40 by wire.

Secondly, referring to the first monitoring unit 20, as illustrated in FIG. 3, the first monitoring unit base station may receive data transmitted from the wireless base station 15 of the surveillance photographing / control unit 10. 21 and a first transmit / receive converter 22 are formed, and a router R2 and a hub H2 that receive data converted by the first transmit / receive converter 22 are formed. .

In addition, a codec for converting the data converted and compressed by the codec C1 of the surveillance photographing / control unit 10 into a signal that can be displayed on the screen and decompressing is connected to the hub H2 ( C1) and a first video divider 23 for distributing the data converted through the codec C2, and receiving and storing the data distributed through the first video divider 23. A first monitoring unit display device comprising a first monitoring unit storage / playback device 24a that can be displayed, an encryption unit 24b for communication security of military units, and an uninterruptible power supply unit 24c that can supply power in case of power failure ( 24), the hub H2 is provided with a normal video terminal P2 capable of video conferencing and an ordinary Internet telephone T2 for voice communication.

Here, as shown in FIG. 4, any one of the lines of the hub H2, the codec C2, the first image distributor 23, and the first monitoring unit display device 24 is lost, and data is transmitted to the first monitoring unit. In case it cannot be transmitted to the exhibition equipment 24, a reserve line L that can be directly connected to the hub H2 and the first monitoring unit exhibition equipment 24 may be further formed to prevent data loss. It is configured to.

In addition, as shown in FIG. 5, the first monitoring unit 20 has a first monitoring unit 20 in preparation for the case where the first monitoring unit 20 does not receive data acquired due to a communication failure with the monitoring photographing / control unit 10. A preliminary codec C5, a first preliminary router R5, and a first preliminary transmit / receive converter 25 connected to the first image divider 23 may be further formed.

Third, referring to the configuration of the second monitoring unit 30, as shown in FIG. 6, the second monitoring unit may receive data transmitted from the wireless base station 15 of the surveillance photographing / control unit 10. A secondary base station 31 and a first transmit / receive converter 32 are formed, and a router R3 and a hub H3 that receive data converted by the first transmit / receive converter 32 are formed. Doing.

In addition, the codec for converting the signal converted and compressed by the codec C1 of the surveillance shooting / control unit 10 into a signal that can be displayed on the screen and decompresses the codec ( C2) and a second image divider 33 for distributing the converted data through the codec C3, and receiving and storing the data distributed through the second image divider 33. A second monitoring unit display device comprising a second monitoring unit storage / reproducing device 34a that can be displayed, an encryption unit 34b for communication security of military units, and an uninterruptible power supply unit 34c that can supply power in case of power failure ( 34), the hub H3 is provided with a normal video terminal P3 capable of video conferencing and an ordinary Internet telephone T3 for voice communication. Where you can send data in real time To and a streaming server (35) connected to the hub (H3).

In this case, as shown in FIG. 7, the second supervisor 30 may not receive data acquired due to a communication failure with the surveillance photographing / control unit 10. A second preliminary transmit / receive converter 36 and a second preliminary router R6 connected to the transmit / receive converter 25 are formed, and the second preliminary router R6 and the second image distributor 33 are formed. It is comprised so that data may be shared by the provisional codec C6 connected between them.

Fourth, looking at the configuration of the command unit 40, as shown in Figure 8, the near-field transmission / reception for receiving data transmitted from the near-field transmission / reception modem 16 of the surveillance shooting / control unit 10 A modem 41 and a hub H4 are provided, and the video terminal P4, the Internet phone T4, the codec C4, the command display device 42 connected to the hub H4, and the schedule during power outages are provided. An uninterruptible power supply 43 capable of supplying electricity for a time is provided.

Looking at the preferred embodiment of the high-performance video surveillance system of the present invention having the configuration as described above are as follows.

First, the remote thermal imaging camera 11a, the daytime optical camera 11b, the distance measuring device 11c, and the panoramic camera formed on the video surveillance equipment 11 installed in the elementary element of the surveillance photographing / control unit 10 11e) to monitor the coast, and the data obtained from the video surveillance equipment 11 is to be sent to the guard guard of the guard house can be confirmed through the guardian display equipment (12).

In addition, the data obtained from the video surveillance equipment 11 is transmitted to the video distributor 13a of the exhibition / control equipment 13, and the video distributor 13a distributes the images to the storage / reproduction equipment 13b. Transmitting, storing, and displaying on the screen, and if a suspected target occurs in a situation detected by the radar during coast monitoring, the surveillance photographing / control unit 10 is formed so as to work with the radar. 11d of the video surveillance equipment 11 formed in the display / control equipment 13 of the 11) is driven to photograph an area where an abnormal symptom occurs.

Of course, in the present invention, as well as the interlock with the radar as described above, the monitor / arbitrarily adjust the display / control equipment 13 formed in the surveillance shooting / control unit 10 by using the control unit 13f abnormal signs are It is natural to be able to photograph the area where it occurred.

On the other hand, the data obtained by the video surveillance equipment 11 can be converted to a signal system to facilitate transmission to the outside, that is, to convert the signal from digital signals to analog signals, analog to digital signals, and to compress and decompress transmission frames. The codec C1 converts the converted data, and the converted data is transmitted to the hub H1.

Then, the hub H1 transmits the converted data to the first and second monitoring units 20 and 30 and the command unit 40.

First, referring to the process of transmitting data to the first monitoring unit 20, the data transmitted to the hub (H1) of the surveillance shooting / control unit 10 is the router (R1) and the transmission / reception conversion unit 14 and The radio is transmitted to the first monitoring unit 20 via the base station 15.

Then, the first monitoring unit 20 receives the data transmitted from the wireless base station 15 from the first monitoring unit base station 21, and thus the data converted by the first transmission / reception conversion device 22. Is received at the router R2 and moved to the hub H2.

The hub H2 transmits data to the codec C2 again, and converts the data converted and compressed by the codec C1 formed on the surveillance photographing / control unit 10 into a signal that can be displayed on the screen. And decompresses and transmits data to the first image divider 23, and the first image divider 23 distributes the image to store the first monitor unit of the first monitor unit display device 24. 24a) is stored and displayed on the screen, when the power supply to the first monitoring unit display equipment 24 is abnormal, the power is supplied for a predetermined time by the uninterruptible power supply (24c) Receiving, it is possible to prevent the external leakage of data by the encryption device (24b) for the security of the data transmitted to the storage / playback equipment (24a).

Here, the line connecting the hub H2 and the codec C2, the first image distributor 23, and the first monitoring unit display device 24 formed in the first monitoring unit 20 may be shorted to transmit data. In case, by further forming a reserve line (L) directly connecting the hub (H2) and the first monitoring unit storage / playback equipment (24a) of the first monitoring unit display equipment 24, to smoothly transmit data It becomes possible.

Meanwhile, referring to a process of transmitting data to the second monitoring unit, the data transmitted to the hub H1 of the surveillance shooting / control unit 10 may be a router R1, a transmission / reception converter 14, and a wireless base station 15. Is transmitted to the second monitoring unit 30.

Then, the second monitoring unit 30 converts the data transmitted from the wireless base station 15 by the second monitoring unit base station 31 and the second transmission / reception conversion device 32 to the router R2. Received from will be moved to the hub (H3).

The hub H3 transmits data to the codec C3 again, and converts the signal converted and compressed by the codec C1 formed in the surveillance photographing / control unit 10 into a signal that can be displayed on the screen. And decompresses and transmits data to the second image distributor 33, and the second image distributor 33 distributes the image to store and reproduce the second monitoring unit of the second monitoring unit display device 34. 34a) is stored and the screen is displayed, when the power supply to the second monitoring unit display equipment 34 is abnormal at this time, the power is supplied for a predetermined time by the uninterruptible power supply (34c). Receiving, it is possible to prevent the external leakage of data by the encryption device (34b) for the security of the data expressed in the storage / playback equipment (34a).

In addition, the streaming server 35 connected to the hub H3 can transmit data in real time to other places outside.

In the present invention, in the process of transmitting / receiving data between the surveillance photographing / control unit 10 and the first and second monitoring units 20 and 30, the first monitoring unit 20 and the second monitoring unit 30 are connected to each other. In case of a situation where communication is lost and data cannot be transmitted / received and data cannot be shared, a backup network between the first and second monitoring units 20 and 30, that is, the first monitoring unit 20 A preliminary codec C5, a first preliminary router R5, and a first preliminary transmit / receive converter 25 are formed to receive data transmitted / received by the first preliminary transmit / receive converter 25. A second preliminary transmission / reception converter 36, a second preliminary router R6, and a preliminary codec C6 which are additionally installed in the second supervisor 30 may be constructed so that the first and second supervisors 20 may be installed. , 30) can share the data received by the monitoring unit.

For example, when the communication between the surveillance shooting / control unit 10 and the second monitoring unit 30 is lost, the first monitoring unit 20 transmits the data transmitted from the surveillance shooting / control unit 10 to the first monitoring unit. The base station 21 is transmitted to the hub H2 via the first transmission / reception converter 22 and the router R2, and the hub H2 transmits the codec C2 for signal conversion and decompression. After that, the data is transmitted to the first image distributor 23. At this time, the data entered into the video divider 23 is transmitted to the preliminary codec C5 by a user's operation to perform signal conversion and compression, and then the first preliminary router R5 and the first preliminary transmission / reception conversion. The device 25 transmits data, and the transmitted data transmits the second preliminary transmission / reception converter 36 of the second monitoring unit 30, the second preliminary router R6, and the preliminary codec C6. By transmitting the data to the second video distributor 33 via the data, the first and second monitoring units 20 and 30 can share data.

Here, the above-described method of driving the preliminary network may be operated by a user's operation in a state where the power of the components constituting the preliminary network is turned off, or may be operated at all times to exchange data with each other. .

In addition, data sharing between the first and second monitoring units 20 and 30 may be performed in the reverse order as described above when communication between the first monitoring unit 20 and the monitoring photographing / control unit 10 is lost. It is natural.

On the other hand, looking at the process of transmitting data to the command unit 40, the data transmitted to the hub (H1) of the surveillance shooting / control unit 10 is to transmit the data via the short-range transmission / reception modem (16).

Then, the command unit 40 receives the transmitted data through the short-range transmission / reception modem 41 and the hub H4, and then converts and decompresses the data through the codec C4 to display the command unit. 42).

On the other hand, in the present invention, the video terminal (P1, P2, P3, P4) and the video communication and voice communication between the surveillance shooting / control unit 10, the first and second monitoring unit 20, 30 and the command unit 40 to enable By providing the Internet telephones T1, T2, T3, and T4, it is possible to promptly deal with the data acquired at the post of the surveillance shooting / control unit 10.

As described above, the high-performance video surveillance system of the present invention is capable of remote surveillance and day and night surveillance by using video surveillance equipment installed in a post, and in particular, a surveillance photographing / control unit for monitoring and controlling a video taken at a post. Surveillance and command teams from other units can share video, so they can take corrective action.

In addition, since the radar and the video surveillance equipment works in conjunction, when a suspected target occurs in the radar, it is possible to check the image to increase the accuracy of the surveillance.

In addition, when the data transmitted from the surveillance photographing / control unit loses communication between any one of the first and second monitoring units, data can be shared by establishing a preliminary network between the first and second monitoring units.

In addition, since it is possible to video conference and voice communication between each unit, it is a useful invention that can be quickly carried out status reporting and command.

Claims (5)

In the high-performance video surveillance system installed in the military unit to monitor the coast, To construct the video surveillance equipment installed in the post place to measure the image and distance and the micro display equipment for monitoring the data acquired from the video surveillance equipment at the post place, and to control and control the operation of the video surveillance device. It forms a display / control device that sends control signals to interoperate with radar and displays and saves data acquired from video surveillance equipment, and compresses and converts data obtained from video surveillance equipment and codecs and hubs. A video terminal capable of video conferencing and video conferencing and an internet telephone for voice communication, and a router / transmission for signal conversion and a router for wirelessly transmitting data to a hub and connected to the hub. It forms a receiving conversion device and a wireless base station, and is connected to the hub and transmits data to the neighboring area by wire. Monitoring recording / controlling the formation of the short-range transmitter / receiver for a modem; A router configured to form a first monitoring unit base station and a first transmitting / receiving converting device capable of receiving data wirelessly transmitted from the surveillance photographing / controlling unit, and receiving data converted by the first transmitting / receiving converting device; Forming a hub, and forming a first image divider to display a codec for signal conversion and decompression of the data received from the hub and data distributed and decompressed by the codec to be displayed on a screen; A first monitoring unit storage / playback device capable of playing and storing data distributed in an image distributor, an encryption device installed to encrypt data transmitted / received, and a first uninterruptible power supply capable of supplying power in case of power failure. The video terminal connected to the monitoring equipment and the hub and configured for video conferencing and the Internet for voice communication The first monitoring unit to form a group; A router configured to form a second monitoring unit base station and a second transmission / reception conversion apparatus capable of receiving data wirelessly transmitted from the surveillance photographing / control unit, and receiving the data converted by the second transmission / reception conversion apparatus; Forming a hub, and forming a codec for signal conversion and decompression of the data received from the hub, and a second image divider for displaying and distributing the data converted and decompressed by the codec on a screen. A second monitoring unit storage / playback device capable of reproducing and storing data distributed from an image distributor, an encryption device installed to encrypt data transmitted / received, and a second uninterruptible power supply capable of supplying power in case of power failure The video terminal connected to the monitoring equipment and the hub and configured for video conferencing and the Internet for voice communication To form a group, which build a streaming server that can transmit data to the outside the second monitoring unit; A codec for forming a short-range transmission / reception modem and a hub capable of receiving data converted from a short-distance transmission / reception modem of the surveillance photographing / control unit, a signal terminal and an Internet phone connected to the hub and a signal conversion and data decompression. And a command unit constituting a command unit display device capable of displaying data converted by the codec. The apparatus of claim 1, wherein the surveillance camera / control unit's video surveillance equipment includes a distance measuring camera capable of capturing a remote image, a distance measuring camera using a daytime optical camera, and a laser, and an error rate during position tracking. High-performance video surveillance system characterized by a camera drive that can be divided into angles of 0.05 ° to reduce the angle and a panoramic camera for capturing the surveillance area. The display / control apparatus of claim 1, wherein the surveillance photographing / control unit displays / controls an image divider provided to distribute the data transmitted from the video surveillance apparatus and stores / reproduces the image-distributed data. Forming equipment, to form a cryptographic equipment and an uninterruptible power supply that is installed to encrypt data transmitted and received, and to control the radar interlocking device and the video surveillance equipment that can interlock the video surveillance equipment and radar High-performance video surveillance system characterized by consisting of a control unit. The hub and the first monitoring unit according to claim 1, wherein the first monitoring unit transmits data to the first monitoring unit display device when a short circuit occurs between any one of the lines connecting the hub, the codec and the image divider. A high-performance video surveillance system characterized by forming a first monitoring unit reserve line connecting secondary display equipment. The first monitoring unit includes a preliminary codec connected to an image distributor so that data can be transmitted when communication between the monitoring photographing / control unit and any one of the first and second monitoring units is lost. A first preliminary router and a first preliminary transmit / receive converter are formed, and a second preliminary transmit / receive converter and a second preliminary router connected to the first preliminary transmit / receive converter of the first supervisor; And a high-performance video surveillance system characterized by further comprising a spare codec.

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