CN116389686A - A Fiber Optic Cabling Network for Video Surveillance - Google Patents

Abstract

The invention discloses an optical fiber wiring network for video monitoring, which comprises: and introducing an alternating current power line and an optical cable into the explosion-proof monitoring box from the factory cabinet, and leading out a plurality of photoelectric hybrid connectors from the explosion-proof monitoring box, wherein a power supply introduced into the explosion-proof monitoring box and an optical fiber in the optical cable are connected to the photoelectric hybrid connectors, and a camera deployed in the factory is connected to the photoelectric hybrid connectors led out from the explosion-proof monitoring box through the photoelectric hybrid cable. The invention has the advantages of reducing wiring in the video monitoring network, optimizing wiring structure and facilitating quick deployment of new monitoring equipment.

Description

A Fiber Optic Cabling Network for Video Surveillance

technical field

The invention relates to the technical field of video monitoring, in particular to an optical fiber wiring network for video monitoring.

Background technique

At present, in order to monitor a camera connected to each explosion-proof monitoring box from the regional cabinets in the petrochemical plant area, it is necessary to lead and lay a large number of power cables and small-core optical cables from the regional cabinets to the corresponding camera near each camera in the device area. Explosion-proof monitoring box, each explosion-proof monitoring box is connected to a camera through a POE cable, refer to Figure 1-2, so that every time a camera is installed, a pair of power lines and a small-core optical cable need to be drawn from the regional cabinet to the vicinity of the camera explosion-proof monitoring box. When the factory area is large, there will be a large number of power cables, optical cables, POE cables, and explosion-proof monitoring boxes, resulting in high wiring costs, difficult operation and maintenance, and cumbersome operations when temporary cameras need to be arranged, which is not conducive to the rapid operation of the cameras. deploy.

Contents of the invention

The invention provides an optical fiber wiring network for video monitoring, which has the advantages of reducing the wiring in the video monitoring network, optimizing the wiring structure, and facilitating rapid deployment of new monitoring equipment.

The above object of the present invention is achieved through the following technical solutions, a fiber optic wiring network for video monitoring, characterized in that it includes: introducing AC power lines and optical cables from the cabinets in the factory area to the explosion-proof monitoring box, from the explosion-proof monitoring box A plurality of photoelectric hybrid connectors are drawn out in the explosion-proof monitoring box, where the power supply in the explosion-proof monitoring box and the optical fiber in the optical cable are connected to the photoelectric hybrid connector, and the cameras deployed in the factory are connected to the photoelectric hybrid connector leading out of the explosion-proof monitoring box through the photoelectric hybrid cable .

The present invention further sets that the optical cable introduced into the explosion-proof monitoring box is a small-core optical cable, wherein the number of optical fibers is not less than the number of photoelectric hybrid connectors drawn out of the explosion-proof monitoring box.

The present invention further provides that the cameras deployed in the factory area are connected to an explosion-proof optical fiber transceiver through a network cable, and the explosion-proof optical fiber transceiver is connected to the photoelectric hybrid connector drawn out of the explosion-proof monitoring box through a photoelectric hybrid cable.

The present invention is further configured as follows: the explosion-proof monitoring box is provided with an air switch, an optical fiber transceiver, a power surge protector, a switching power supply module, a control board, and a plurality of photoelectric hybrid connector outputs, and the externally input power is passed through the air switch, the power supply The lightning protector and the switching power supply module are converted to output, the optical fiber transceiver is connected to the control board, and the optical fiber transceiver is used for communicating with the outside world;

The circuit board includes a CPU, a power distribution module, a network communication module, a power supply on-off control module and a short-circuit protection circuit, and the circuit board uses a photoelectric hybrid connector to output the input power and the optical fiber in the external input optical cable in multiple ways. , the short-circuit protection circuit and the power on-off control module are arranged on each power output of the control board.

The present invention is further provided that at least one optical fiber in the optical cable input from the outside to the explosion-proof monitoring box is connected to the optical fiber transceiver for communication.

The present invention is further configured that the network communication module on the circuit board is a network interface, and is connected to the optical fiber transceiver through a network cable.

The present invention further provides that the switching power supply module is used to convert AC 220V power into DC 48V power and output it to the control board and the optical fiber transceiver.

The present invention is further provided that the control board is further provided with a DC-DC power conversion module for converting a DC 48V power supply into a DC 3.3V power supply as a working power supply for the CPU and the network communication module.

The present invention is further provided that the explosion-proof monitoring box is also equipped with an optical cable lead-out and coiling device, including a winding box and a plurality of adapters, and the optical fiber externally input to the optical cable in the explosion-proof monitoring box is placed in the winding reel Unhook and connect with the control board or fiber optic transceiver through said adapter.

In summary, the beneficial effects of the present invention have:

1. Greatly reduce a large number of power cables and small-core optical cables drawn and laid out from the regional cabinets, optimize the wiring structure, reduce wiring costs, and facilitate operation and maintenance;

2. Rapid deployment can be realized when additional cameras need to be deployed near the area.

Description of drawings

Fig. 1 is the arrangement diagram of explosion-proof monitoring box and video camera in the prior art;

Fig. 2 is a schematic diagram of an optical fiber wiring network in video surveillance in the prior art;

Fig. 3 is the layout schematic diagram of explosion-proof monitoring box and video camera among the present invention;

Fig. 4 is a schematic diagram of the optical fiber wiring network in the video monitoring of the present invention;

Fig. 5 is a schematic diagram of the internal structure of the explosion-proof monitoring box in the present invention.

In Fig. 5, 1. Air switch; 2. Optical fiber transceiver; 3. Lightning protector for power supply; 4. Switching power supply module; 5. Control panel; 6. Optical cable lead-out and coiling device; , Optical cable.

Detailed ways

Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

Embodiment: Referring to Figure 3-4, a fiber optic wiring network for video surveillance, introducing AC power lines and optical cables from the cabinets in the factory area to the explosion-proof monitoring box, and leading out multiple photoelectric hybrid connectors from the explosion-proof monitoring box, where The power supply in the explosion-proof monitoring box and the optical fiber in the optical cable are connected to the photoelectric hybrid connector. The cameras deployed in the factory are connected to the photoelectric hybrid connector leading out of the explosion-proof monitoring box through the photoelectric hybrid cable. The optical cable introduced into the explosion-proof monitoring box is a small-core optical cable, and the number of optical fibers is not less than the number of photoelectric hybrid connectors drawn out of the explosion-proof monitoring box. In this embodiment, the optical cable is a 12-core optical cable, and the number of photoelectric hybrid connectors drawn from the explosion-proof monitoring box is 8.

The cameras deployed in the factory area are connected to an explosion-proof optical fiber transceiver through a network cable, and the explosion-proof optical fiber transceiver is connected to the optical-electrical hybrid connector leading out of the explosion-proof monitoring box through a photoelectric hybrid cable.

In a factory area, multiple explosion-proof monitoring boxes can be arranged, and each explosion-proof monitoring box is connected to the cabinet through power lines and optical cables. An explosion-proof monitoring box can be connected to multiple cameras, and the connection between the explosion-proof monitoring box and the cameras is through a photoelectric hybrid cable.

Referring to Fig. 5, the explosion-proof monitoring box is provided with an air switch 1, an optical fiber transceiver 2, a power surge protector 3, a switching power supply module 4, a control panel 5 and a plurality of photoelectric hybrid connector outputs 7, and the externally input power passes through Air switch 1, power surge protector 3 and switching power supply module 4 convert and output, the external input power supply is AC 220V power supply, switching power supply module 4 is used to convert AC 220V power supply to DC 48V power supply and supply to the control board 5 and the optical fiber transceiver 2 for output.

The optical fiber transceiver 2 is connected with the control board 5, and the optical fiber transceiver 2 is used for communicating with the outside world. The optical fiber transceiver 2 communicates with the outside world through an optical fiber. Among the optical cables 8 connected to the monitoring box, that is, at least one optical fiber of the optical cables 8 input from outside to the explosion-proof monitoring box is connected to the optical fiber transceiver 2 for communication.

The circuit board includes a CPU, a power distribution module, a network communication module, a power supply on-off control circuit and a short circuit protection circuit. Output, specifically, the power distribution module divides the input DC 48V power supply into multiple outputs, and each output and one optical fiber are output through a photoelectric hybrid connector. The short-circuit protection circuit and the power on-off control circuit are arranged on each power output of the control board 5, the short-circuit protection circuit adopts the prior art, and the power on-off control circuit selects a circuit constructed by a relay or a switching tube.

The control board 5 is also provided with a DC-DC power conversion module for converting a DC 48V power supply into a DC 3.3V power supply as a working power supply for the CPU and the network communication module. It can be understood that the DC 3.3V power supply also supplies power to other modules in the control board 5 that use 3.3V power supply.

The network communication module on the circuit board is a network interface, which is connected to the optical fiber transceiver 2 through a network cable.

The explosion-proof monitoring box is also provided with an optical cable 8 lead-out and coiling device 6, including a winding box and a plurality of adapters, and the optical fiber externally input to the optical cable 8 in the explosion-proof monitoring box is untied in the winding reel. It is connected with the control board 5 or the optical fiber transceiver 2 through the adapter. The optical cable 8 between the explosion-proof monitoring box and the external cabinet adopts a small-core optical cable 8, which includes 12 optical fibers. The optical cable 8 is led out and the adapters in the coiling device 6 are provided with 12, and are arranged in double rows, with 6 adapters in each row.

There is a grounding screw on the explosion-proof monitoring box, which is connected to the ground wire of the power surge protector 3 and the switching power supply module 4 .

The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, without departing from the inventive concept of the present invention, some modifications and improvements can also be made, and these all belong to the present invention. protection scope of the invention.

Claims (9)

1. An optical fiber wiring network for video monitoring, characterized in that it includes: introducing AC power lines and optical cables from the factory area cabinets to the explosion-proof monitoring box, and drawing a plurality of photoelectric hybrid connectors from the explosion-proof monitoring box, wherein, The power supply in the explosion-proof monitoring box and the optical fiber in the optical cable are connected to the photoelectric hybrid connector. The cameras deployed in the factory are connected to the photoelectric hybrid connector leading out of the explosion-proof monitoring box through the photoelectric hybrid cable. 2. The optical fiber wiring network for video surveillance according to claim 1, characterized in that the optical cable introduced into the explosion-proof monitoring box is a small-core optical cable, wherein the number of optical fibers is not less than the photoelectric hybrid connector drawn in the explosion-proof monitoring box quantity. 3. The optical fiber wiring network for video monitoring according to claim 2, characterized in that the cameras deployed in the factory area are connected to an explosion-proof optical fiber transceiver through a network cable, and the explosion-proof optical fiber transceiver is connected to the explosion-proof monitoring box through a photoelectric hybrid cable The optical hybrid connector that leads out. 4. The optical fiber wiring network for video monitoring according to claim 3, characterized in that, an air switch, an optical fiber transceiver, a power surge protector, a switching power supply module, a control panel and multiple A photoelectric hybrid connector output, the externally input power is output after being converted by an air switch, a power surge protector and a switching power supply module, and the optical fiber transceiver is connected with the control board, and the optical fiber transceiver is used for communicating with the outside world; The circuit board includes a CPU, a power distribution module, a network communication module, a power supply on-off control module and a short-circuit protection circuit, and the circuit board uses a photoelectric hybrid connector to output the input power and the optical fiber in the external input optical cable in multiple ways. , the short-circuit protection circuit and the power on-off control module are arranged on each power output of the control board. 5. The optical fiber wiring network for video surveillance according to claim 4, characterized in that at least one optical fiber in the optical cables input from the outside to the explosion-proof monitoring box is connected to an optical fiber transceiver for communication. 6 . The optical fiber wiring network for video monitoring according to claim 5 , wherein the network communication module on the circuit board is a network interface connected to the optical fiber transceiver through a network cable. 7. The optical fiber wiring network for video monitoring according to claim 4, wherein the switching power supply module is used to convert the AC 220V power supply to a DC 48V power supply and supply the power to the control board and the optical fiber transceiver to output. 8. The optical fiber wiring network for video monitoring according to claim 7, wherein the control board is also provided with a DC-DC power conversion module for converting a DC 48V power supply to a DC 3.3V power supply, As the working power supply of CPU and network communication module. 9. The optical fiber wiring network for video monitoring according to any one of claims 4-8, characterized in that, the explosion-proof monitoring box is also equipped with an optical cable lead-out and coiling device, including a winding box and a plurality of adapters , the optical fiber that is externally input to the optical cable in the explosion-proof monitoring box is untied in the reel and connected to the control board or the optical fiber transceiver through the adapter.

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