CN102970079A - ONU (Optical Network Unit) equipment with acquisition function - Google Patents
ONU (Optical Network Unit) equipment with acquisition function Download PDFInfo
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Abstract
The invention discloses ONU (Optical Network Unit) equipment with an acquisition function. The ONU equipment comprises an acquisition MCU (Mciroprogrammed Control Unit) module, a storage, an RS-485 interface, an Ethernet switching module and an ONU module chip, wherein the acquisition MCU module is connected with the storage, the RS-485 interface and the Ethernet switching module, the Ethernet switching module is connected with the ONU module chip, and the RS-485 interface is connected with an electric energy meter by adopting DL/T645 communication protocol. The equipment can directly acquire power information, and realize optical communication through EPON (Ethernet Passive Optical Network) technology used in a local communication network. A physical network of a power consumption information acquisition system has extremely high capacity through the high bandwidth, high reliability and networking application of the EPON, the business range and content can be easily broadened, and the value-added service can be provided.
Description
Technical field
The present invention relates to optical communication field, be specifically related to a kind of ONU optical communication equipment with acquisition function.
Background technology
Known, the communication construction of power information acquisition system generally is divided into two levels.First level is the communication between main station system and the concentrator, is referred to as telecommunication, generally adopts the technology such as optical fiber communication, wireless public network, wireless private network and carrier communication.Second level is the communication between concentrator and the table meter, is referred to as local communication, generally adopts low voltage power line carrier, and micropower is wireless and the technology such as RS485 fieldbus.
Utilize the networking of EPON technology, can in telecommunicatio network, make up the power private network of optical fiber communication.This optical networking roughly is comprised of two parts: one is fiber backbone network, and another is Optical Access Network.Fiber backbone network is made of the SDH equipment network, and optical fiber access network equipment then is made of EPON equipment.
The combination of the modes such as local communication generally adopts low voltage power line carrier, micropower is wireless, RS-232 and RS-485.Because distant between concentrator and collector and the table meter, the modes such as micropower is wireless, RS-232 and RS-485 all can not finely must solve the problem of communicating by letter.So low voltage power line carrier is the mode of relatively recommending now, and also is that cost is minimum, has the mode of temptation most.
But the low voltage power line carrier mode all the time open question be the full problem that gathers because low-voltage powerline carrier communication is subjected to the impact of channel quality very large.On the low-voltage power line except having large decay and distortion, also have the coloured noise of various samples, will produce greatly interference for communication system.Be subject to the cost of low-voltage powerline carrier communication, its traffic rate is generally all very low, and communication reliability is not high yet, can't satisfy application demand in the future, and technology maturity lags behind the EPON technology greatly.
Summary of the invention
The objective of the invention is to guarantee in order to solve present user power utilization information acquisition system local communication the problem of all standing, high bandwidth and reliability, a kind of ONU equipment with acquisition function is provided, adopts the EPON mode to realize the local communication of power information acquisition system.
Present patent application solves the technical scheme that its technical problem adopts:
A kind of ONU equipment with acquisition function, comprise and gather MCU module, memory, RS-485 interface, ethernet switching module and ONU module chip, gathering the MCU module is connected with memory, RS-485 interface, status indicator lamp, ethernet switching module respectively, ethernet switching module is connected with the ONU module chip, the RS-485 interface is connected with the electric energy meter that adopts the DL/T645 communication protocol, the ONU module chip of tool acquisition function also is connected with EPON, adopts the EPON mode to realize the local communication of power information system.
Described ONU module chip by the PAS6301 chip be connected FLASH, the SDRAM, ExSDRAM, EEPROM and the optical transceiver module that are connected with this chip and form, be prior art.
Described collection MCU module is the core of electric quantity acquisition module, and the data model of built-in COSEM table meter in MCU is by MCU executive program code, finish the electric quantity acquisition function.
Described memory is used for depositing the configuration information of electric quantity acquisition, comprises address, communication baud rate etc.
Described RS-485 interface is connected with electric energy meter by the DL/T645 communication protocol.
Described ethernet switching module is passed to the electric quantity acquisition information in the acquisition module in the ONU module chip.
The international EPON IEEE of the ONU hardware compatibility of tool acquisition function of the present invention 802.3ah, the IEEE802.3-2005 standard; Compatible Domestic Carriers EPON standard; Support 1 PON upstream Interface and 1 user's side FE interface; Support 2 RS-485 interfaces, collection and the transparent transmission of power information is provided; Satisfy the national grid power information and gather standard, support the transparent transmission of DLT 645-2007 stipulations and the processing of Q/GDW 376.1-2009 stipulations; The equipment profile meets national grid Q/GDW 375.3-2009 collector pattern standard; Support the plug and play characteristic; It is simple and convenient that equipment is installed configuration; Multiple branching ratio and distance are selected, the highest 1:64 that supports, and networking is more flexible; Remarkable QoS characteristic, the network bandwidth control of port level takes full advantage of Internet resources, realizes the service classification management.
Advantage of the present invention is:This ONU equipment with acquisition function can directly carry out the power information collection, and uses the EPON technology to realize optical communication at LCN local communications network.The application of the high bandwidth of EPON network, high reliability and networking will be so that the physical network of power information acquisition system has high capacity, and can branch out easily scope and content provide value added service.
Description of drawings
Fig. 1 is structural representation of the present invention.
Embodiment
Below by accompanying drawing and example technical scheme of the present invention is further described.
As shown in Figure 1, this ONU equipment with acquisition function provided by the invention forms by gathering MCU module 1, memory 2, RS-485 interface 6, ethernet switching module 3, ONU module chip 4 and power module.
Power module links to each other with collection MCU module,Gathering MCU module 1 is connected with the electric energy meter 7 that adopts DL/T 645 communication protocols by RS-485 interface 6, acquiring electric energy information in equipment, and store, by ethernet switching module 3 energy information is passed to ONU module chip 4, connect optical fiber by optical transceiver module again, energy information access EPON system.
Described ONU module chip by the PAS6301 chip be connected FLASH, the SDRAM, ExSDRAM, EEPROM and the optical transceiver module that are connected with this chip and form, the PAS6301 chip is the control processing module of a EPON of being exclusively used in ONU; FLASH is used for cure system boot etc.; SDRAM is mainly used in operating system file from the copy of F1ash and the accessing operation of application program; ExSDRAM is used for the buffer memory of up-downgoing data service; EEPROM is the serial ports to exchange chip debugging usefulness; Optical transceiver module is connected with optical fiber, imports the electric quantity acquisition data into the EPON network.
Claims (2)
1. ONU equipment with acquisition function, it is characterized in that: comprise gathering MCU module, memory, RS-485 interface, ethernet switching module and ONU module chip, gathering the MCU module is connected with memory, RS-485 interface, ethernet switching module respectively, ethernet switching module is connected with the ONU module chip, and the RS-485 interface is connected with the electric energy meter that adopts the DL/T645 communication protocol;
Described collection MCU module is the core of electric quantity acquisition module, and the data model of built-in COSEM table meter in MCU is by MCU executive program code, finish the electric quantity acquisition function;
Described memory is used for depositing the configuration information of electric quantity acquisition, comprises address, communication baud rate;
Described ethernet switching module is passed to the electric quantity acquisition information in the acquisition module in the ONU module chip;
Described ONU module chip will import the EPON network on the electric quantity acquisition information, realize fiber entering household.
2. ONU equipment according to claim 1, it is characterized in that: described ONU module chip also is connected with EPON, adopts the EPON mode to realize the local communication of power information system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012105020905A CN102970079A (en) | 2012-11-30 | 2012-11-30 | ONU (Optical Network Unit) equipment with acquisition function |
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| CN2012105020905A CN102970079A (en) | 2012-11-30 | 2012-11-30 | ONU (Optical Network Unit) equipment with acquisition function |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103543727A (en) * | 2013-10-24 | 2014-01-29 | 国家电网公司 | Intelligent building unified management platform based on Internet of Things technology |
| CN104579474A (en) * | 2014-12-29 | 2015-04-29 | 东莞市启鼎光电科技有限公司 | Passive optical splitter RS-485 optical fiber bus embedded terminal |
| CN108810671A (en) * | 2017-04-26 | 2018-11-13 | 中兴通讯股份有限公司 | ONT Optical Network Terminal formation gathering method and optical line terminal |
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| CN102254420A (en) * | 2011-04-21 | 2011-11-23 | 河南电力试验研究院 | All-optical electricity consumption information acquisition system |
| CN102426775A (en) * | 2011-10-11 | 2012-04-25 | 国网信息通信有限公司 | Electric power consumption information acquisition device, electric power consumption information acquisition and transmission method and system |
| CN202395934U (en) * | 2011-08-25 | 2012-08-22 | 南京能瑞自动化设备股份有限公司 | Power-expenditure information collecting system based on EPON and wireless self-networking technology |
| CN202422413U (en) * | 2011-12-14 | 2012-09-05 | 宁夏隆基宁光仪表有限公司 | Novel optical-communication electric energy meter |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201946108U (en) * | 2010-12-31 | 2011-08-24 | 深圳市天益光纤通信技术有限公司 | Information acquisition equipment for electric energy meter based on EPON |
| CN102254420A (en) * | 2011-04-21 | 2011-11-23 | 河南电力试验研究院 | All-optical electricity consumption information acquisition system |
| CN202395934U (en) * | 2011-08-25 | 2012-08-22 | 南京能瑞自动化设备股份有限公司 | Power-expenditure information collecting system based on EPON and wireless self-networking technology |
| CN102426775A (en) * | 2011-10-11 | 2012-04-25 | 国网信息通信有限公司 | Electric power consumption information acquisition device, electric power consumption information acquisition and transmission method and system |
| CN202422413U (en) * | 2011-12-14 | 2012-09-05 | 宁夏隆基宁光仪表有限公司 | Novel optical-communication electric energy meter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103543727A (en) * | 2013-10-24 | 2014-01-29 | 国家电网公司 | Intelligent building unified management platform based on Internet of Things technology |
| CN104579474A (en) * | 2014-12-29 | 2015-04-29 | 东莞市启鼎光电科技有限公司 | Passive optical splitter RS-485 optical fiber bus embedded terminal |
| CN104579474B (en) * | 2014-12-29 | 2018-08-03 | 东莞市启鼎光电科技有限公司 | A kind of passive light splitting RS-485 fiber buss built-in terminals |
| CN108810671A (en) * | 2017-04-26 | 2018-11-13 | 中兴通讯股份有限公司 | ONT Optical Network Terminal formation gathering method and optical line terminal |
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Application publication date: 20130313 |