CN210405508U

CN210405508U - Video monitoring system based on EPON (Ethernet passive optical network)

Info

Publication number: CN210405508U
Application number: CN201920619762.8U
Authority: CN
Inventors: 冯振江
Original assignee: China Eracom Contracting And Engineering Co ltd
Current assignee: China Eracom Contracting And Engineering Co ltd
Priority date: 2019-04-30
Filing date: 2019-04-30
Publication date: 2020-04-24
Anticipated expiration: 2029-04-30

Abstract

The utility model discloses a video monitoring system based on EPON network, including treater, video coding chip, camera, ethernet interface, ONU module, optical divider module, OLT module and trunk fiber equipment, the treater respectively with the video coding chip, ethernet interface connection, the camera with the video coding chip is connected, the ONU module with the optical divider is connected, the optical divider with the OLT module is connected, the OLT module with the trunk fiber equipment is connected; the utility model discloses a video monitoring system based on EPON network, its aim at provides reliable and stable video monitoring system, can in time discover among the video monitoring system obstacle and hidden danger, and timely solution problem, transmission quality is reliable and stable simultaneously, and transmission bandwidth is great, can satisfy the demand of online video monitoring.

Description

Video monitoring system based on EPON (Ethernet passive optical network)

Technical Field

The utility model relates to a video monitoring technical field especially relates to a based on EPON network video monitoring system.

Background

With the development of the technology and the diversification of the requirements, the video monitoring presents high-definition, remote and high-speed network transportation, and the adoption of the optical fiber access network to construct the video monitoring transmission network is the trend of the development of the video monitoring industry. However, important management information, such as the on-off state of an optical fiber of an optical network, the online state of equipment, and the occupation condition of a port, included in a video monitoring system in the prior art, cannot be identified in time, so that a fault cannot be processed in time.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a video monitoring system, its aim at provides reliable and stable video monitoring system, can in time discover among the video monitoring system obstacle and hidden danger, in time the problem of solving.

The utility model discloses a following technical scheme realizes:

a video monitoring system based on an EPON network comprises a processor, a video coding chip, a camera, an Ethernet interface, an ONU module, an optical splitter module, an OLT module and a trunk optical fiber device, wherein the processor is respectively connected with the video coding chip and the Ethernet interface, the camera is connected with the video coding chip, the ONU module is connected with the optical splitter, the optical splitter is connected with the OLT module, and the OLT module is connected with the trunk optical fiber device.

Further, the intelligent temperature and pressure sensor system further comprises an infrared sensor, a temperature sensor, a pressure sensor, a position sensor and an acceleration sensor, wherein the infrared sensor, the temperature sensor, the pressure sensor, the position sensor and the acceleration sensor are respectively connected with the processor.

Further, the system also comprises a power supply module used for providing power supply, and the power supply module is connected with the processor.

Further, still include the alarm, the alarm with processor is connected.

Furthermore, the Ethernet interface and the ONU module are connected through a single optical fiber; the ONU module and the optical splitter module are connected through an access end optical fiber; the optical splitter module is connected with the OLT module through a relay optical fiber; the OLT module is connected with the trunk optical fiber equipment through a trunk optical fiber.

Further, the bandwidth of the ONU module is greater than the sum of the bandwidths of the single optical fibers connected to the ONU module.

Further, trunk fiber device includes a plurality of cloud storage device, prevents hot wall, core switch and a plurality of layer switch that converges, a plurality of cloud storage device all with prevent hot wall connection, prevent hot wall with core switch connects, core switch with a plurality of layer switch that converges are connected.

Furthermore, the trunk optical fiber devices are connected through trunk optical fibers.

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

the utility model discloses a video monitoring system based on EPON network, its aim at provides reliable and stable video monitoring system, can in time discover among the video monitoring system obstacle and hidden danger, and timely solution problem, transmission quality is reliable and stable simultaneously, and transmission bandwidth is great, can satisfy the demand of online video monitoring.

Drawings

Fig. 1 is a schematic structural diagram of a video monitoring system based on an EPON network.

Fig. 2 is a schematic diagram of a network structure based on an EPON network video monitoring system according to the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

Referring to fig. 1, a video monitoring system based on an Ethernet Passive Optical Network (EPON) Network includes a processor, a video coding chip, a camera, an Ethernet interface, an ONU (Optical Network Unit) module, an Optical splitter module, an OLT (Optical line terminal) module, and a main Optical fiber device, where the processor is connected to the video coding chip and the Ethernet interface, the camera is connected to the video coding chip, the ONU module is connected to the Optical splitter, the Optical splitter is connected to the OLT module, and the OLT module is connected to the main Optical fiber device.

Preferably, the camera collects shot video signals in real time and transmits the video signals to the video coding chip, the video coding chip performs video compression coding on the video signals and transmits the video signals to the processor, the processor processes data transmitted by the video coding chip and the sensor and uploads the processed signals to the cloud storage device or the central machine room through the Ethernet interface and the passive optical network; the administrator can also directly manage important management information such as the on-off state of an optical fiber of an ONU module connected with the video monitoring equipment, the online state of the equipment, the port occupation condition and the like by means of the EPON, thereby being convenient for finding obstacles and hidden dangers quickly, accurately judging the problems, solving the problems in time and shortening the obstacle processing time, meanwhile, the transmission quality is stable and reliable, the transmission bandwidth is larger, and the requirement of online video monitoring can be met.

EPON is preferably a fiber access network technology that provides multiple services over ethernet using point-to-multipoint architecture, passive fiber transmission. The physical layer adopts PON technology, the link layer uses Ethernet protocol, and the topological structure of PON is used to realize the access of Ethernet.

Preferably, the video monitoring system based on the EPON network has the following advantages:

the stability of the whole network is greatly improved: EPON ODN (optical network) is all optical splitters and optical fibers, and the main component is glass, so that the service life is long; the system has no active equipment, thereby avoiding common faults of the active equipment such as power failure, lightning stroke, overcurrent, overvoltage, damage and the like, having high network reliability and remarkably reducing maintenance cost. The introduction of EPON technology has resulted in a significant reduction in the frequency of failures at this point.

The network coverage is wide: the system can provide 0.5-20 KM long-distance signal access and basically cover the range of medium-scale urban areas; the front-end equipment can directly transmit the video data information to the cloud storage equipment or a video monitoring and access control system platform of the central machine room through the optical network.

The transmission bandwidth is big: the bandwidth of each ONU can be dynamically adjusted between 2M and 1.25 gbps; the average uplink bandwidth of each ONU is about 30M.

Networking is flexible: the networking model is not limited, and chain type, tree type and star type networks can be flexibly constructed through the combination of different light splitters. The networking mode can be adjusted according to different geographic positions of the front end and different requirements of customers so as to meet the reasonable configuration of network resources.

The comprehensive network management supporting service of the EPON ensures that the system is easy to maintain. The passive optical network system provides functions of topology management, fault management, performance management, security management, configuration management and the like, and greatly reduces OPEX (Operating cost).

The system capacity expansion is simple. The EPON is transparent to the used transmission system to a certain extent, and the capacity expansion operation of the transmission side is convenient when the number of the monitoring points is required.

Preferably, the EPON system consists of an OLT, an ONU and an optical splitter. The OLT is an optical line terminal and the ONUs are placed near or integrated into a network interface unit. The POS is a passive optical splitter, which is a passive device connecting optical fibers, and its function is to distribute downstream data and collect upstream data, and the model is generally 1:2 (50%: 50%, 95%: 5%, etc.), 1:4, 1: 8. 1:16, 1:32, 1: 64. In the EPON, a single-core optical fiber is used, and two upstream and downstream waves (upstream wavelength: 1310nm, downstream wavelength: 1490nm, and further, a wavelength of 1550nm can be superimposed downstream on the optical fiber to transmit a video signal) are transmitted on one core.

Preferably, the distance between the OLT and the ONU can reach 20km at most, the transmission rate is bidirectional symmetric at 1.25Gbps, the maximum splitting ratio generally supports 1:64 or higher, and one-level splitting can be realized or a plurality of splitters can be cascaded.

Further, still include the alarm, the alarm with processor is connected.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. A video monitoring system based on an EPON network is characterized by comprising a processor, a video coding chip, a camera, an Ethernet interface, an ONU module, an optical splitter module, an OLT module and trunk optical fiber equipment, wherein the processor is respectively connected with the video coding chip and the Ethernet interface, the camera is connected with the video coding chip, the ONU module is connected with the optical splitter, the optical splitter is connected with the OLT module, and the OLT module is connected with the trunk optical fiber equipment.

2. The EPON-based network video monitoring system of claim 1, further comprising an infrared sensor, a temperature sensor, a pressure sensor, a position sensor, and an acceleration sensor, the infrared sensor, the temperature sensor, the pressure sensor, the position sensor, and the acceleration sensor each being coupled to the processor.

3. The EPON-based network video surveillance system of claim 2, further comprising a power module for providing power, the power module coupled to the processor.

4. The EPON-based network video surveillance system of claim 1, further comprising an alarm coupled to the processor.

5. The EPON-based network video monitoring system of claim 1, wherein the ethernet interface and the ONU module are connected by a single fiber; the ONU module and the optical splitter module are connected through an access end optical fiber; the optical splitter module is connected with the OLT module through a relay optical fiber; the OLT module is connected with the trunk optical fiber equipment through a trunk optical fiber.

6. The EPON-based network video monitoring system of claim 5, wherein the bandwidth of the ONU modules is greater than the sum of the bandwidths of the single-fiber connections thereto.

7. The EPON-based network video surveillance system of claim 1, wherein the backbone fiber optic equipment comprises a plurality of cloud storage devices, a firewall, a core switch, and a plurality of convergence layer switches, wherein the plurality of cloud storage devices are each connected to the firewall, wherein the firewall is connected to the core switch, and wherein the core switch is connected to the plurality of convergence layer switches.

8. The EPON-based network video monitoring system of claim 7, wherein the backbone fiber optic devices are connected via a backbone fiber.