CN213186317U

CN213186317U - Intelligent video security monitoring system

Info

Publication number: CN213186317U
Application number: CN202021991771.9U
Authority: CN
Inventors: 李一宾; 翟宏伟
Original assignee: Tianjin Napu Lighting Engineering Co ltd
Current assignee: Tianjin Napu Smart Technology Co ltd
Priority date: 2020-09-11
Filing date: 2020-09-11
Publication date: 2021-05-11
Anticipated expiration: 2030-09-11

Abstract

The utility model relates to the technical field of video monitoring, and discloses an intelligent video security monitoring system, which comprises a management equipment group, a transmission equipment group, a first monitoring terminal group and a second monitoring terminal group; the intelligent video security monitoring system groups the monitoring terminals and the related equipment according to the requirements of different monitoring scenes, and different groups adopt different matched equipment, so that the circuit structure of the whole system is simpler and clearer, and the arrangement and maintenance work of technicians is facilitated; the access switch is adopted to supply power to the POE camera, so that the line can be further simplified; the power supply equipment is adopted to supply power to the whole system, so that technicians can conveniently and accurately manage the power supply condition of each part of the intelligent video security monitoring system; the single-mode optical fiber is adopted as the primary optical fiber, so that the attenuation of optical signals in long-distance transmission can be reduced, and the accuracy of the signals is ensured.

Description

Intelligent video security monitoring system

Technical Field

The utility model relates to a video monitoring technology field, concretely relates to intelligent video security protection monitored control system.

Background

The video security monitoring system is generally required in places such as residential districts, schools, factories and institutions, cameras are required to be installed at multiple places in the area of the places in the system, images collected by the cameras are required to be transmitted to a management platform, and management personnel in the places perform unified monitoring, so that power supply, communication line design and arrangement of the cameras arranged at all places are required. When a video monitoring system is installed in the prior art, the monitoring area is large, circuits are many and complex, the setting is often not reasonable enough, a great deal of difficulty is brought to later-stage circuit maintenance, and an improved space exists.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide an intelligent video security monitored control system, this intelligent video security monitored control system have succinct, clear circuit layout, make laying and maintaining of circuit more convenient.

In order to achieve the above object, the present invention provides the following technical solutions:

an intelligent video security monitoring system comprises a management equipment group, a transmission equipment group, a first monitoring terminal group and a second monitoring terminal group, wherein the management equipment group is connected with the transmission equipment group through a network cable; the first monitoring terminal group comprises a plurality of fixed-focus cameras, at least two billiard type cameras and at least two first-class wiring boxes, the fixed-focus cameras are connected with the first-class wiring boxes, the ball type cameras are connected with the first-class wiring boxes, and the first-class wiring boxes are connected with the transmission equipment group through first-class optical fibers; the second monitoring terminal group comprises a plurality of second-class wiring boxes and a plurality of first-class dome cameras, the first-class dome cameras are connected with the second-class wiring boxes, and the second-class wiring boxes are connected with the transmission equipment group through primary optical fibers.

The utility model discloses in, it is preferred, management equipment group is including management computer, video cassette recorder, decoder, video wall and integrated management platform, the decoder with video wall electric connection, management computer, video cassette recorder, decoder and integrated management platform pass through the net twine respectively with transmission equipment group connects.

The utility model discloses in, it is preferred, transmission equipment group includes a plurality of core switches, fiber switch, electric switch, assembles fiber transceiver and fiber distribution frame, the core switch pass through the net twine respectively with management computer, video recorder, decoder and comprehensive management platform are connected, the fiber switch pass through the second grade optic fibre with the core switch is connected, the electric switch pass through the net twine with the core switch is connected, assemble fiber transceiver with electric switch electric connection, the fiber switch with assemble fiber transceiver respectively through the second grade optic fibre with fiber distribution frame connects, fiber distribution frame pass through the one-level optic fibre with one type of distribution case and two types of distribution casees are connected.

In the present invention, preferably, an access switch, an optical fiber transceiver and an optical fiber fusion splice box are installed in the first type of distribution box; within said type of wiring closet: the access switch is connected with the fixed-focus camera through a network cable, the optical fiber transceiver is connected with the access switch through a network cable, the optical fiber fusion box is connected with the optical fiber transceiver through a secondary optical fiber, and the optical fiber distribution frame is connected with the optical fiber fusion box through a primary optical fiber.

In the utility model, preferably, an access switch, an optical upper connection switch and an optical fiber fusion box are installed in the second type distribution box; within the class ii wiring box: the access switch is connected with the hemisphere cameras through network cables, the optical connection switch is connected with the access switch through network cables, the optical fiber fusion box is connected with the optical connection switch through secondary optical fibers, and the optical fiber distribution frame is connected with the optical fiber fusion box through primary optical fibers.

The utility model discloses in, it is preferred, the access switch is the POE switch, the tight shot camera is POE camera with a type of dome camera.

The utility model discloses in, it is preferred, second monitoring terminal group still include a plurality of two types of dome camera and a plurality of install in fiber transceiver and the optical fiber splice box outside two types of distribution boxes, two types of dome camera pass through the net twine with fiber transceiver connects, fiber transceiver pass through second grade optic fibre with the optical fiber splice box is connected, the optical fiber splice box pass through one-level optic fibre with the optical fiber distribution frame is connected.

The utility model discloses in, it is preferred, still include power supply unit, power supply unit includes UPS power, UPS block terminal and group battery, the UPS power respectively with UPS block terminal and group battery electric connection, the UPS block terminal respectively with management equipment group, transmission equipment group one type distribution case and two types of distribution case electric connection.

The utility model discloses in, it is preferred, all install supply socket in a kind of distribution case and the second kind distribution case, supply socket with UPS block terminal electric connection.

In the present invention, preferably, the primary optical fiber is a single mode optical fiber.

In the present invention, it is preferable.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses an intelligent video security protection monitored control system divides into groups monitor terminal and relevant equipment according to the needs of different control scenes, and different corollary equipment is adopted in different groups, makes the circuit structure of entire system more succinct, clear, makes things convenient for technical staff's laying and maintenance work; the access switch is adopted to supply power to the POE camera, so that the line can be further simplified; the power supply equipment is adopted to supply power to the whole system, so that technicians can conveniently and accurately manage the power supply condition of each part of the intelligent video security monitoring system; the single-mode optical fiber is adopted as the primary optical fiber, so that the attenuation of optical signals in long-distance transmission can be reduced, and the accuracy of the signals is ensured.

Drawings

Fig. 1 is a schematic structural diagram of an intelligent video security monitoring system.

Fig. 2 is a schematic diagram of a connection structure of the management device group, the transmission device group, and the power supply device.

Fig. 3 is a schematic diagram of the internal structure of a wiring box of this type.

Fig. 4 is a schematic view of the internal structure of the second type wiring box.

Fig. 5 is a schematic diagram of a connection structure of a part of the first monitoring terminal group.

Fig. 6 is a schematic diagram of a connection structure of a part of the second monitoring terminal group.

In the drawings: 1-a first monitoring terminal group, 101-a class wiring box, 102-a fixed-focus camera, 103-a dome camera, 2-a second monitoring terminal group, 201-a class wiring box, 202-a class dome camera, 203-a class dome camera, 301-a management computer, 302-a video recorder, 303-a decoder, 304-a television wall and 305-a comprehensive management platform, 401-core switch, 402-fiber switch, 403-electric switch, 404-convergence fiber transceiver, 405-fiber distribution frame, 5-access switch, 6-fiber transceiver, 7-fiber fusion box, 8-optical uplink switch, 901-UPS power supply, 902-UPS distribution box, 903-battery pack and 10-power socket.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to fig. 6, a preferred embodiment of the present invention provides an intelligent video security monitoring system, which includes a management device group, a transmission device group, a first monitoring terminal group 1 and a second monitoring terminal group 2.

In this embodiment, the management device group is a background management part of the system, and is configured to display the acquired video picture according to the needs of the user, and store the video file locally, and the management device group is connected to the transmission device group through a network cable.

The first monitoring terminal group 1 comprises a plurality of fixed-focus cameras 102, at least two billiard type cameras 103 and at least two first-class wiring boxes 101, the fixed-focus cameras 102 are connected with the first-class wiring boxes 101, the ball type cameras 103 are connected with the first-class wiring boxes 101, and the first-class wiring boxes 101 are connected with the transmission equipment group through first-class optical fibers. The fixed-focus camera 102 is mainly used in occasions with low flexibility requirements to monitor designated areas, is preferably used in parks of residential areas, schools, factories, office units and other places, is provided with underground garages in the places, can also be provided with monitoring points in the underground garages, and is provided with the fixed-focus camera 102. The dome cameras 103 are flexible and suitable for occasions with high monitoring requirements, and are mainly used for monitoring entrances and exits of a garden, so that the number of the dome cameras 103 is at least two, and if other monitoring points have high requirements, a plurality of billiard type cameras 103 can be arranged. The wiring boxes 101 of the same type are used for connecting monitoring terminals, namely a fixed-focus camera 102 and a dome camera 103, with a transmission equipment group, are usually arranged near the monitoring terminals, the number of the wiring boxes can meet the requirement of accessing systems of all the monitoring terminals, equipment with a viewpoint conversion function is installed in the wiring boxes, so that photoelectric signal conversion and transmission between the monitoring terminals and the transmission equipment group are completed, the distance between the wiring boxes 101 of the same type and the transmission equipment group is long, and the length of a first-level optical fiber is also long.

The second monitoring terminal group 2 includes a plurality of second-type wiring boxes 201 and a plurality of first-type dome cameras 202, the first-type dome cameras 202 are connected with the second-type wiring boxes 201, and the second-type wiring boxes 201 are connected with the transmission equipment group through primary optical fibers. Wherein, the dome camera 202 of the first kind is used for the monitoring of the elevator front room, the distribution box 201 of the second kind is usually set up in the vicinity of the dome camera 202 of the first kind and its quantity can meet all dome cameras 202 access systems, the apparatus with viewpoint conversion function is installed inside, thus can finish photoelectric signal conversion and transmission between dome camera 202 of the first kind and the transmission equipment group, the distance between distribution box 201 of the second kind and the transmission equipment group is far away, so the first class optic fibre length here is also longer.

The intelligent video security monitoring system of the embodiment groups the monitoring terminals and the related devices according to the requirements of different monitoring scenes, and adopts different matched devices in different groups, so that the circuit structure of the whole system is simpler and clearer, and the arrangement and maintenance work of technicians is facilitated.

The utility model discloses an embodiment, management equipment group installs the hard disk that is used for saving video data in managing computer 301, video recorder 302, decoder 303, video wall 304 and comprehensive management platform 305 including managing, video recorder 302, decoder 303 and video wall 304 electric connection. The transmission equipment group is connected with management computer 301, video recorder 302, decoder 303 and integrated management platform 305 respectively through the net twine, and the transmission equipment group transmits video signal to decoder 303 and video recorder 302 department, and decoder 303 decodes video signal, and then the video signal after decoding is transmitted to video wall 304, and video wall 304 shows the picture that each POE camera was shot in real time, supplies the managers control. The Video Recorder 302 may employ a device such as a DVR (Digital Video Recorder 302), a NVR (Network Video Recorder 302) capable of storing Video in the form of Digital signals in a hard disk, and the Video signals are stored in the form of Digital signals on the hard disk at the Video Recorder 302. The integrated management platform 305 is a control host of the intelligent video monitoring system, and is respectively communicated with the video recorder 302, the decoder 303, the monitoring terminals (various cameras) and other devices through the transmission device group to control the running state of each device, and the programs in the integrated management platform 305 enable each device to keep a normal working state. The management computer 301 communicates with the integrated management platform 305 through the transmission device group, so that the administrator can access the integrated management platform 305, and can send instructions to the integrated management platform 305 as required, and the integrated management platform 305 changes the operating states of the video recorder 302, the decoder 303, the monitoring terminal and other devices according to the instructions. Through the management equipment group, scenes shot by all cameras can be monitored simultaneously, all shot video files can be stored locally, and management personnel can control the processes of shooting, displaying, storing and the like of videos through the management equipment group.

In one embodiment of the present invention, the transmission equipment group comprises a plurality of core switches 401, fiber switches 402, electrical switches 403, aggregation fiber transceivers 404, and fiber distribution frames 405. The core switch 401 is configured to converge multiple electrical signals and optical signals together, and then transmit the multiple electrical signals and optical signals to the management device group, where a downlink end of the core switch is provided with a plurality of optical interfaces and electrical interfaces, and an uplink end of the core switch is provided with a plurality of electrical interfaces. The upstream end of the core switch 401 is connected to the management computer 301, the video recorder 302, the decoder 303 and the integrated management platform 305 through network cables. The optical fiber switch 402 is used for directly converging multiple optical signals, a plurality of downlink ports and uplink ports of the optical fiber switch are optical interfaces, the downlink ports of the optical fiber switch are connected with the optical fiber distribution frame 405 through secondary optical fibers, and the uplink ports of the optical fiber switch are connected with the core switch 401 through the secondary optical fibers, so that part of signals with higher quality requirements can be directly transmitted to the core switch 401 in the form of optical signals, and signal attenuation is reduced. The electric switch 403 is used for converging multiple paths of electric signals together, a plurality of downlink ports and uplink ports of the electric switch are electric interfaces, the uplink ports of the electric switch are connected with the core switch 401 through network cables, the downlink ports of the electric switch are connected with the converging optical fiber transceiver 404 through network cables, and the optical interfaces of the converging optical fiber transceiver 404 are connected with the optical fiber distribution frame 405 through secondary optical fibers. The fiber distribution frame 405 is connected to the first category of distribution cabinet 101 and the second category of distribution cabinet 201 by primary fibers. The transmission line structure with clear layers can be realized by adopting a transmission equipment group consisting of the core switch 401, the optical fiber switch 402, the electric switch 403, the convergence optical fiber transceiver 404 and the optical fiber distribution frame 405, so that different signal transmission requirements are met, and optical signals are transmitted in a centralized manner, so that the line is simplified.

The utility model discloses an embodiment installs access switch 5, optical fiber transceiver 6 and optical fiber splice box 7 in the first kind distribution case 101, installs access switch 5, optical connection switch 8 and optical fiber splice box 7 in the second kind distribution case 201.

Within one type of wiring box 101: the access switch 5 is connected with the fixed-focus camera 102 through a network cable, the optical fiber transceiver 6 is connected with the access switch 5 through a network cable, the optical fiber fusion box 7 is connected with the optical fiber transceiver 6 through a secondary optical fiber, and the optical fiber distribution frame 405 is connected with the optical fiber fusion box 7 through a primary optical fiber. The connection is a connection between the respective devices provided in the same type of distribution box 101.

Within the class ii wiring box 201: the access switch 5 is connected with the hemisphere camera 202 through a network cable, the optical uplink switch 8 is connected with the access switch 5 through a network cable, the optical fiber fusion box 7 is connected with the optical uplink switch 8 through a secondary optical fiber, and the optical fiber distribution frame 405 is connected with the optical fiber fusion box 7 through a primary optical fiber. The optical uplink switch 8 is a switch with an uplink port as an optical interface and a downlink port as an electrical interface, the uplink port is directly connected with the optical fiber fusion splice box 7 through the secondary optical fiber, and the downlink port is connected with the access switch 5 through a network cable. The connection is made between the devices provided in the same second type distribution box 201.

Through setting the distribution box to two different types, can realize adopting different configurations to different occasions, the monitoring terminal extension demand of the occasion that first monitoring terminal group 1 was suitable for is less, so adopt optical fiber transceiver 6 can satisfy needs completely to the cost is lower, the monitoring terminal extension demand of the occasion that second monitoring terminal group 2 was suitable for is great, so adopt light on line switch 8 as photoelectric conversion equipment, can satisfy the demand of monitoring terminal extension.

The utility model discloses an in the embodiment, the access switch 5 of first monitoring terminal group 1 and second monitoring terminal group 2 is the POE switch, and the fixed focus camera 102 of first monitoring terminal group 1 and a kind of dome camera 202 of second monitoring terminal group 2 are the POE camera. The POE switch and the POE camera are the switch and the camera supporting the power over ethernet. POE (power Over ethernet) technology, i.e., power Over ethernet based systems, allows the current required for each device to operate to be carried by a data cable rather than a power line, which minimizes the number of wires that must be connected to install a network. The international standard of the POE power supply technology is ieee802.3af/802.3at, the POE switch is power supply equipment conforming to the standard, and the POE camera is powered equipment conforming to the standard. Therefore, after the POE device is adopted, the fixed-focus camera 102 and the dome camera 202 of one type do not need to be provided with power lines for connecting with an external power supply. Through adopting POE camera and POE switch, can realize that access switch 5 avoids laying the power supply line for monitor terminal for the power supply of fixed focus camera 102 and a type of dome camera 202, and the system circuit obtains obvious simplification, and this makes laying and maintaining of system circuit more convenient.

The utility model discloses an in one embodiment, second monitoring terminal group 2 still includes a plurality of second type dome camera 203, optical fiber transceiver 6 and optical fiber splice box 7, and second type dome camera 203 passes through the net twine and is connected with optical fiber transceiver 6, and optical fiber transceiver 6 passes through second grade optic fibre and is connected with optical fiber splice box 7, and optical fiber splice box 7 passes through the one-level optic fibre and is connected with optical fiber distribution frame 405. The second-class dome camera 203 is suitable for monitoring in an elevator car, and the influence of an electric signal in the environment on a signal of a monitoring terminal can be prevented as much as possible by adopting a connection mode of the optical fiber fusion box 7, the secondary optical fiber, the optical fiber transceiver 6 and a network cable.

The utility model discloses an in one embodiment, intelligent video security protection monitored control system still includes power supply unit, and power supply unit includes UPS power 901, UPS block terminal 902 and group battery 903, UPS power 901 respectively with UPS block terminal 902 and group battery 903 electric connection, UPS block terminal 902 respectively with management equipment group, transmission equipment group, a type of distribution case 101 and a type two distribution case 201 electric connection. Specifically, the UPS distribution box 902 is electrically connected to the management computer 301, the video recorder 302, the decoder 303, the video wall 304, the integrated management platform 305, the core switch 401, the fiber switch 402, the electrical switch 403, and the aggregation fiber transceiver 404, respectively.

The UPS 901 is internally provided with a filter, a rectifier, an inverter and other devices, when the commercial power is normally supplied, the UPS 901 filters the current to form stable alternating current and transmits the stable alternating current to the distribution box, and the distribution box transmits the current to each device through a circuit among the video management device, the signal transmission device, the photoelectric conversion device and the POE switch; at the same time, the commercial power also forms a direct current through the rectifier, and the direct current flows to the battery pack 903 to charge the battery pack 903. The battery pack 903 may be a lead-acid battery, a gel battery, a lithium battery, or the like. When the utility power is cut off, the battery pack 903 is discharged, and the direct current flows to the UPS power supply 901, passes through the inverter to form alternating current, and then flows to the UPS distribution box 902, and is distributed to each electric device for use.

The UPS 901, the UPS distribution box 902 and the battery pack 903 are used as power supply equipment of the whole system, stable power can be provided, the system can work uninterruptedly under the condition of mains supply power failure, video monitoring on places needing monitoring is guaranteed in real time, and uniform and accurate management of power supply conditions of all parts of the system by technicians is facilitated.

In an embodiment of the present invention, the power socket 10 is installed in the first-type wiring box 101 and the second-type wiring box 201, the power socket 10 is electrically connected to the UPS distribution box 902, and the access switch 5, the optical fiber transceiver 6 and the optical uplink switch 8 in the first-type wiring box 101 and the second-type wiring box 201 are all connected to the power socket 10 and powered by them. The dome camera 103 and the dome camera 203 which are positioned near the first-type wiring box 101 or the second-type wiring box 201 can be connected with the power socket 10, and the power socket 10 supplies power to the equipment. By providing the power outlet 10, flexible power supply to the devices in the first-class distribution box 101 and the second-class distribution box 201 and the devices in the vicinity thereof can be realized.

In an embodiment of the present invention, the first-order optical fiber used for transmitting the long-distance optical signal is a single-mode optical fiber. The single-mode optical fiber has the characteristics of long transmission distance and low attenuation, so that the attenuation in video signal transmission can be reduced as much as possible, and the reliability of signals can be ensured to a greater extent.

The working principle is as follows:

when the intelligent video security monitoring system works, a UPS power supply 901 supplies mains supply voltage-stabilized power to a UPS distribution box 902, and the UPS distribution box 902 supplies power to the management computer 301, the video recorder 302, the decoder 303, the television wall 304, the comprehensive management platform 305, the core switch 401, the optical fiber switch 402, the electric switch 403, the convergent optical fiber transceiver 404, the first-class distribution box 101 and the second-class distribution box 201 respectively. In the first-class wiring box 101 and the second-class wiring box 201, the access switch 5 can supply power to the fixed-focus camera 102 and the first-class dome camera 202 through network cables, so that a power supply circuit does not need to be arranged independently, the system circuit is simplified, and the circuit is more convenient to arrange and maintain. The electric signals of the videos shot by the fixed-focus camera 102, the dome camera 103 and the hemisphere camera 202 are transmitted to the access switch 5, the access switch 5 transmits the electric signals to the optical fiber transceiver 6, and the optical fiber transceiver 6 converts the electric signals into optical signals and transmits the optical signals to the primary optical fiber. The primary optical fiber is connected with an optical distribution frame 405, one part of the primary optical fiber on the optical distribution frame 405 is connected with a convergence optical fiber transceiver 404, the other part is connected with an optical fiber switch 402, so that one part of optical signals in the primary optical fiber is transmitted to the optical fiber switch 402, and the optical fiber switch 402 transmits the optical signals to a core switch 401; another portion of the optical signals are transmitted to the aggregation fiber transceiver 404, converted into electrical signals, and transmitted to the electrical switch 403, and the electrical switch 403 transmits the electrical signals to the core switch 401. The core switch 401 converts the received optical signal into an electrical signal, transmits the received electrical signal and the converted electrical signal to the management computer 301, the video recorder 302, the decoder 303 and the integrated management platform 305, the video recorder 302 stores the video information in the form of the electrical signal into a hard disk, the decoder 303 decodes the electrical signal into a format suitable for playing, the video wall 304 plays video pictures collected by each camera in real time, the integrated management platform 305 controls each device to work normally and changes the working state, and a user can send an instruction to the integrated management platform 305 through the management computer 301 to change the working state of each device.

The above description is for the detailed description of the preferred possible embodiments of the present invention, but the embodiments are not intended to limit the scope of the present invention, and all equivalent changes or modifications accomplished under the technical spirit suggested by the present invention should fall within the scope of the present invention.

Claims

1. An intelligent video security monitoring system is characterized by comprising a management equipment group, a transmission equipment group, a first monitoring terminal group and a second monitoring terminal group,

the management equipment group is connected with the transmission equipment group through a network cable;

the first monitoring terminal group comprises a plurality of fixed-focus cameras, at least two billiard type cameras and at least two first-class wiring boxes, the fixed-focus cameras are connected with the first-class wiring boxes, the ball type cameras are connected with the first-class wiring boxes, and the first-class wiring boxes are connected with the transmission equipment group through first-class optical fibers;

the second monitoring terminal group comprises a plurality of second-class wiring boxes and a plurality of first-class dome cameras, the first-class dome cameras are connected with the second-class wiring boxes, and the second-class wiring boxes are connected with the transmission equipment group through primary optical fibers.

2. The intelligent video security monitoring system according to claim 1, wherein the management equipment set comprises a management computer, a video recorder, a decoder, a video wall and a comprehensive management platform, the decoder is electrically connected with the video wall, and the management computer, the video recorder, the decoder and the comprehensive management platform are respectively connected with the transmission equipment set through network cables.

3. The intelligent video security monitoring system according to claim 2, wherein the transmission device group comprises a plurality of core switches, an optical fiber switch, an electric switch, a convergence optical fiber transceiver and an optical fiber distribution frame, the core switches are respectively connected with the management computer, the video recorder, the decoder and the comprehensive management platform through network cables, the optical fiber switch is connected with the core switches through secondary optical fibers, the electric switch is connected with the core switches through network cables, the convergence optical fiber transceiver is electrically connected with the electric switch, the optical fiber switch and the convergence optical fiber transceiver are respectively connected with the optical fiber distribution frame through secondary optical fibers, and the optical fiber distribution frame is connected with the first-class distribution box and the second-class distribution box through primary optical fibers.

4. The intelligent video security monitoring system according to claim 3, wherein an access switch, an optical fiber transceiver and an optical fiber fusion box are installed in the wiring box of one type;

within said type of wiring closet: the access switch is connected with the fixed-focus camera through a network cable, the optical fiber transceiver is connected with the access switch through a network cable, the optical fiber fusion box is connected with the optical fiber transceiver through a secondary optical fiber, and the optical fiber distribution frame is connected with the optical fiber fusion box through a primary optical fiber.

5. The intelligent video security monitoring system according to claim 4, wherein an access switch, an optical uplink switch and an optical fiber fusion box are installed in the class II distribution box;

within the class ii wiring box: the access switch is connected with the hemisphere cameras through network cables, the optical connection switch is connected with the access switch through network cables, the optical fiber fusion box is connected with the optical connection switch through secondary optical fibers, and the optical fiber distribution frame is connected with the optical fiber fusion box through primary optical fibers.

6. The intelligent video security monitoring system according to claim 5, wherein the access switch is a POE switch, and the fixed-focus camera and the dome camera are POE cameras.

7. The intelligent video security monitoring system according to claim 3, wherein the second monitoring terminal group further comprises a plurality of second-class dome cameras and a plurality of optical fiber transceivers and optical fiber splice boxes installed outside the second-class distribution box, the second-class dome cameras are connected with the optical fiber transceivers through network cables, the optical fiber transceivers are connected with the optical fiber splice boxes through second-class optical fibers, and the optical fiber splice boxes are connected with the optical fiber distribution frame through first-class optical fibers.

8. The intelligent video security monitoring system according to claim 1, further comprising a power supply device, wherein the power supply device comprises a UPS power source, a UPS distribution box and a battery pack, the UPS power source is electrically connected to the UPS distribution box and the battery pack, and the UPS distribution box is electrically connected to the management device group, the transmission device group, the first type distribution box and the second type distribution box.

9. The intelligent video security monitoring system of claim 8, wherein power sockets are installed in the first-type wiring box and the second-type wiring box, and the power sockets are electrically connected to the UPS distribution box.

10. The intelligent video security monitoring system according to claim 1, wherein the primary optical fiber is a single mode optical fiber.