Electric power GPON private network integrated service network system based on end-to-end isolated transmission

Abstract

The utility model discloses an electric power GPON private network integrated service network system based on end-to-end isolated transmission. Namely, a power production control region service terminal and a power management information region service terminal transmit information back to each service master station of a power production control region and each service master station of a power management information region through a power GPON private network based on joint transmission of SDH transmission equipment and PTN transmission equipment. And the end-to-end physical isolation transmission of the production control large-area service and the management information large-area service is realized. According to the utility model, the problem that a single EPON network is difficult to bear service terminal information of different security partitions is solved, the problems of insufficient bandwidth, low reliability and the like existing in large-particle bandwidth service information return are solved, and meanwhile, the production control large-area service and the management information large-area service are respectively borne through the electric power SDH transmission equipment and the PTN transmission equipment, so that the production control large-area service and the management information large-area service are realized. The problems of high network pressure, low reliability and insufficient isolation caused by return by only using the SDH network at present are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of power GPON special network integrated service network construction, concretely relates to a kind of power GPON special network integrated service network system based on end-to-end isolated transmission. BACKGROUND

[0002] At present, in the field of distribution network wired communication, EPON special network is mainly used to bear related service terminal information, and power SDH backhaul network is used to backhaul to each service main station. However, with the continuous growth of power service terminal types and quantity, there are services in a single site (switching station, ring cabinet, etc.) belonging to different power safety partitions, and according to the technical principles of power safety partition, the services between different safety partitions need to meet the physical isolation requirements. Due to technical limitations, it is impossible to realize it by using a single EPON special network. If a new EPON special network belonging to different safety partitions is constructed, it will increase the investment cost and occupy optical cable physical resources. It is of great significance to construct a single power PON optical fiber special network integrated service network system that can meet the end-to-end physical isolation requirements, for the safe and reliable backhaul of distribution network service terminals and the reduction of network construction cost. UTILITY MODEL CONTENT

[0003] To solve the problems existing in the prior art, the utility model aims to provide a power GPON special network integrated service network system based on end-to-end isolated transmission.

[0004] The utility model aims to realize the following technical scheme.

[0005] A power GPON special network integrated service network system based on end-to-end isolated transmission includes production control area service main station and management information area service main station, wherein the production control area service main station is connected to main station SDH transmission equipment, the main station SDH transmission equipment is connected to power SDH transmission equipment through SDH transmission network, and the power SDH transmission equipment is connected to power GPON special network; the management information area service main station is connected to main station PTN transmission equipment, the main station PTN transmission equipment is connected to power PTN transmission equipment through PTN transmission network, and the power PTN transmission equipment is connected to power GPON special network.

[0006] The management information area service main station includes video monitoring equipment in switching station, intelligent inspection robot and handheld terminal video equipment; the production control area service main station includes DTU.

[0007] The power GPON private network comprises an OLT device, splitters and ONUs, wherein the OLT device is connected with a plurality of splitters, and the splitters are connected with the ONUs at the other ends; the OLT device is arranged in a substation and connected with a power SDH transmission device and a power PTN transmission device of the substation; the splitters comprise equal-ratio splitters and non-equal-ratio splitters; one end of the equal-ratio splitters is interconnected with the OLT device in the substation through an optical fiber, and the other end is interconnected with the ONUs in each switchyard; one end of the non-equal-ratio splitters is interconnected with the OLT device in the substation through an optical fiber, and the other end is interconnected with a next-stage splitter and the ONUs in the switchyard; the ONUs are in the switchyard and interconnected with different service terminals in the switchyard through different network ports.

[0008] The power GPON private network comprehensive service network system based on end-to-end isolation transmission provided by the utility model realizes the end-to-end physical isolation transmission of the production control area service and the management information area service, solves the problem that a single EPON network cannot bear different security partition service terminal information, and the problems of insufficient bandwidth and low reliability existing in the large-particle bandwidth service information return, simultaneously bears the production control area service and the management information area service through the power SDH transmission device and the PTN transmission device, solves the problems of great network pressure, low reliability and insufficient isolation generated by the current return of the SDH network, and the use of the PTN transmission device reduces the transmission pressure of the SDH transmission device and realizes the efficient use of the existing power communication resources. BRIEF DESCRIPTION OF DRAWINGS

[0009] Fig. 1 It is the structure schematic diagram of the power GPON private network comprehensive service network system based on end-to-end physical isolation of the utility model.

[0010] Fig. 2 It is the characteristic schematic diagram of the SDH rigid pipeline and the PTN flexible pipeline. DETAILED DESCRIPTION

[0011] As Figs. 1-2As shown, a power GPON private network integrated service data network system based on end-to-end isolated transmission is used for power distribution network optical fiber communication and construction of a power distribution integrated service data network system. The power GPON private network integrated service data network system based on end-to-end isolated transmission comprises a production control area service main station and a management information area service main station. The production control area service main station is connected to a main station SDH transmission device, the main station SDH transmission device is connected to a power SDH transmission device through an SDH transmission network, and the power SDH transmission device is connected to the power GPON private network. The management information area service main station is connected to a main station PTN transmission device, the main station PTN transmission device is connected to a power PTN transmission device through a PTN transmission network, and the power PTN transmission device is connected to the power GPON private network.

[0012] Because the power SDH transmission device and the power PTN transmission device are physically isolated, both devices can work independently at the same time, effectively carrying the management information area service and the production control area service in a single power GPON private network backhaul, and the opening of various services does not interfere with each other. The power SDH transmission device and the power PTN transmission device serve as a backhaul network of an intelligent integrated service data network system and simultaneously carry power communication. The PTN transmission device is more suitable for large-granularity video information services than the SDH transmission device, solving the problems of insufficient bandwidth and low reliability in the past when large-granularity video service information was only backhauled through an SDH network. The SDH transmission device is more suitable for transmitting small-granularity bandwidth services. By configuring different and physically isolated transmission devices for large-granularity video information services and small-granularity bandwidth services, adaptive transmission of small-granularity services and large-granularity services in a power distribution network and physically isolated transmission of production control area services and management information area services are achieved.

[0013] The PTN is a flexible transmission channel, and the SDH is a rigid transmission channel. The transmission of large-granularity video services by a traditional SDH device occupies a large number of bandwidth channels, resulting in resource waste. The PTN is a flexible transmission channel and mainly serves the transmission of data services. It provides GE and FE interfaces in the form of IP packets and can also provide 2M or STM-N interfaces. The kernel of the PTN is a packet switch. This packet transmission-based feature can achieve efficient use of transmission bandwidth, especially for the transmission of large-bandwidth large-granularity services. Because of this feature, the PTN is more suitable for the transmission of large-granularity video services. Therefore, the PTN transmission device is selected to transmit large-granularity video information services, reducing the transmission pressure of the SDH transmission device. The principles and working modes of the PTN transmission device and the SDH transmission device are not described in detail.

[0014] Further, the management information area service main station includes in-house video monitoring, intelligent inspection robots, handheld terminal video, etc., and belongs to a large-particle bandwidth service. The production control area service main station includes DTU (distribution automation three remote service) and other small-particle bandwidth services. The distribution automation three remote refers to remote signaling, remote measurement and remote control. The remote signaling is an application of communication technology to complete the monitoring of device state information, such as alarm state or switch position, valve position, etc., which is a switch quantity signal input. The remote measurement is an application of communication technology to transmit the measurement value of the measured variable, which is an analog quantity signal input. The remote control is an application of communication technology to complete the command to change the state of the running device, which is a switch quantity signal output. The production control area service terminal and the management information area service terminal in the utility model are both existing devices in the field, and the utility model will not be described in detail for the existing devices.

[0015] The power GPON private network is an optical fiber communication network used in a power distribution network, mainly including an OLT device (optical line terminal), an optical splitter and an ONU (optical network unit), wherein the OLT device is connected with multiple optical splitters, and the optical splitters are connected with the ONUs at the other ends. It should be noted that the OLT device is a terminal device of an optical fiber trunk, used for connecting an optical fiber network, generally arranged in a substation and connected with a power SDH transmission device and a power PTN transmission device of the substation; the optical splitter, as a passive device, is divided into an equal-ratio optical splitter and a non-equal-ratio optical splitter, used for splitting the optical line signal of the OLT device pon interface into two or more independent light beams. The equal-ratio optical splitter is interconnected with the OLT device in the substation through an optical fiber at one end and interconnected with the ONU devices in the switching stations at the other end. The non-equal-ratio optical splitter is interconnected with the OLT device in the substation through an optical fiber at one end and interconnected with the ONU devices in the switching stations and the next-level optical splitters at the other end. The ONU device is used for connecting the power distribution network service terminal device in the switching station and the like, and interconnected with different service terminals in the switching station through different network ports. The service main stations of the production control area and the management information area are the power distribution network primary terminal service main stations, and the services are returned to the main station system through the communication mode described in the patent.

[0016] The network system mainly realizes end-to-end physical isolation in the following ways:

[0017] The power GPON private network: the OLT device and the ONU device used in the patent both have the function of physically isolating the chip core level layer, and the production control area service terminal and the management information area service terminal are interconnected through different interfaces of the ONU device at the ONU device side. The different interfaces of the ONU device correspond to different chip cores, and the services are processed separately. The different interfaces can be regarded as physically isolated, and returned to the OLT device in the substation through time division multiplexing. The OLT device is connected with the SDH transmission device and the PTN transmission device through two interfaces, and the interfaces are also physically isolated.

[0018] The working mode of the utility model is: on the basis of existing power production control district service terminal, power management information district service terminal, SDH transmission network, EPON system and power each service main station, the EPON system is changed to GPON system, and PTN transmission network is additionally provided, so that end-to-end physical isolation function is realized on the GPON system side, the backhaul network side and the main station side.

[0019] For the production control district service terminal, mainly DTU (distribution automation three remote) in the substation switchyard, etc., the service terminal is connected to one of the network interfaces of the GPON system ONU device arranged in the switchyard (this network is physically isolated from other network interfaces), and then the service is returned to the OLT device by occupying the time slot through time division multiplexing, the OLT device is interconnected with the SDH transmission device through the pre-set production control district service return network interface, and the service is returned to the production control district distribution automation master station through the transmission network for data communication.

[0020] For the management information district service terminal, mainly video monitoring, intelligent inspection robot, handheld terminal video in the substation switchyard, etc., the service terminal is connected to the network interface of the GPON system ONU device arranged in the switchyard (this network is physically isolated from other network interfaces), and then the service is returned to the OLT device by occupying the time slot through time division multiplexing, the OLT device is interconnected with the PTN transmission device through the pre-set management information district service return network interface, and the service is returned to the management information district video monitoring master station through the transmission network for data communication.

[0021] In the above process, when the information starts to be transmitted, different services are transmitted by different network interfaces of the ONU device in the switchyard, and when the ONU device returns, different services are configured in different time slots through time division multiplexing, and after being returned to the OLT device, the different upload interfaces are interconnected with the SDH device and the PTN device, respectively, to realize end-to-end physical isolation of the distribution network service in the return process.

[0022] The above is only the preferred embodiment of the utility model, and is not a limitation on the technical scheme of the utility model. It should be pointed out that the skilled in the art can further improve and change under the premise of the technical scheme of the utility model, such as using SDH transmission device and OTN transmission device when returning through the transmission network, and these improvements and changes should be covered in the protection scope of the utility model.

Claims

1. A power GPON private network integrated service network system based on end-to-end isolated transmission, characterized in that: The power supply system comprises a production control area business host and a management information area business host, wherein the production control area business host is connected with a main station SDH transmission device, the main station SDH transmission device is connected with a power supply SDH transmission device through an SDH transmission network, and the power supply SDH transmission device is connected to a power supply GPON private network; the management information area business host is connected with a main station PTN transmission device, the main station PTN transmission device is connected with a power supply PTN transmission device through a PTN transmission network, and the power supply PTN transmission device is connected to the power supply GPON private network.

2. The GPON private integrated services network system based on end-to-end isolated transmission of claim 1, wherein: The management information area business host comprises an open and close station video monitoring device, an intelligent inspection robot and a handheld terminal video device; and the production control area business host comprises a DTU.

3. The GPON private integrated services network system based on end-to-end isolated transmission of power according to claim 1, characterized in that: The power supply GPON private network comprises an OLT device, a splitter and an ONU, wherein the OLT device is connected with a plurality of splitters, and the splitters are connected with the ONUs at the other ends; the OLT device is arranged in a substation and is connected with a power supply SDH transmission device and a power supply PTN transmission device of the substation; the splitter comprises an equal ratio splitter and a non-equal ratio splitter, one end of the equal ratio splitter is interconnected with the OLT device in the substation through an optical fiber, and the other end is interconnected with the ONUs in each open and close station; one end of the non-equal ratio splitter is interconnected with the OLT device in the substation through an optical fiber, and the other end is interconnected with a next-stage splitter and the ONUs in the open and close station; the ONU is in the open and close station and is interconnected with different service terminals in the open and close station through different network ports.

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