CN201860330U - Near-end machine of digital optical fiber repeater with backup function - Google Patents
Near-end machine of digital optical fiber repeater with backup function Download PDFInfo
- Publication number
- CN201860330U CN201860330U CN2010205796039U CN201020579603U CN201860330U CN 201860330 U CN201860330 U CN 201860330U CN 2010205796039 U CN2010205796039 U CN 2010205796039U CN 201020579603 U CN201020579603 U CN 201020579603U CN 201860330 U CN201860330 U CN 201860330U
- Authority
- CN
- China
- Prior art keywords
- end machine
- optical fiber
- unit
- digital optical
- backup
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model discloses a near-end machine of a digital optical fiber repeater with backup function, wherein a backup module of the near-end machine is inserted into the two near-end machines of the digital optical fiber repeater; a backup unit of the near-end machine comprises a radio frequency combined unit, an Ethernet switching element, an optical switch unit, a processor unit and a power supply switching unit, wherein radio frequency interfaces of two near-end machines are connected to a base station by a feeder after passing through the radio frequency combined unit in the backup unit; the light path switching between a far-end machine and the two near-end machines is realized through the optical switch unit; the working condition of the near-end machine is detected by the processor unit; and when one near-end machine is broken down, the units in the backup module are controlled to switch, so as to ensure the system to be in normal work continuously. The near-end machine of the digital optical fiber repeater with backup function has the beneficial effects that: and only one additional backup module of the near-end machine needs to be added without the change of the original near-end machine. The near-end machine of the digital optical fiber repeater with the backup function has a certain referential meaning and realistic significance for the equipment stability and reliability of the overlay network of the digital optical fiber repeater.
Description
Technical field
The utility model relates to mobile communications network and covers and the optimization field, mainly is a kind of digital optical fiber direct station near-end machine of preparing and carrying part function.
Background technology
In today that mobile communication develops rapidly, the overlay area of which kind of radio communication all will produce weak signal area and blind area, and to some remote districts and the few blind area of number of users, it is too high to set up analog or digital base station cost, infrastructure is also complicated, provide for this reason a kind of cost low, set up simple, have the small base station function cost-effective equipment---the repeater is necessary.Optical fiber repeater working stability wherein, coverage effect is good; Because space isolation is good, does not produce co-channel interference, retransmits direction and can adopt omnidirectional antenna to cover so that coverage effect to be provided; Improve gain simultaneously and can self-excitation, help strengthening downlink signal transmitting power; The signal transmission is not limited by geographical conditions, can enlarge the coverage of network fast.
Digital optical fiber direct station is divided into near-end machine and remote termination two parts, and both transmit in optical fiber by digital signal and communicate by letter.When practical application, the near-end machine is one, and remote termination can be one or more, can be a near-end machine 8 remote terminations of series connection at most in the networking, also can be a near-end machine 4 remote terminations in parallel, and perhaps other mixed networking is used.In case when the near-end machine broke down, whole extension overlay network will be in paralyzed state, this makes the reliability of near-end machine become particularly crucial, especially needs higher occasion for reliability.
The utility model content
The purpose of this utility model will overcome the deficiency of above-mentioned technology just, and a kind of digital optical fiber direct station near-end machine of preparing and carrying part function is provided, thereby improves the reliability of near-end machine, makes whole extension overlay network also more reliable and stable.
The utility model solves the technical scheme that its technical problem adopts: this digital optical fiber direct station near-end machine of preparing and carrying part function, in two digital optical fiber direct station near-end machines, insert a near-end machine backup module, when wherein a near-end machine breaks down, it can automatically switch to an other near-end machine, thereby the assurance system can continue operate as normal.This near-end machine backup module is made up of radio frequency combiner unit, Ethernet switch unit, optical switch element, processor unit and power conversion unit, and wherein the radio frequency combiner unit connects the feeder line of base station and the radio frequency interface of two digital optical fiber direct station near-end machines; The Ethernet switch unit connects the Ethernet interface of two near-end machines; The light mouth of two near-end machines of optical switch element connection connects the light mouth of remote termination simultaneously, makes the light path of remote termination and near-end machine to switch; Processor unit provides two 485 interface to two a near-end machine, simultaneously each module is controlled, and can automatically switch when detecting fault; Power conversion unit provides different supply voltages for whole backup units.
Design principle: it is by providing a near-end machine backup module with the work reliability of the system that guarantees of two near-end machines, this backup module is monitored the operating state of near-end machine 1 in real time, when detecting fault, it just switches to remote termination in the near-end machine 2 and goes, and has played the function of near-end machine backup.
This implementation method of preparing and carrying the digital optical fiber direct station near-end machine of part function described in the utility model, step is as follows:
1), in two general digital optical fiber direct station near-end machines that do not have a backup functionality, inserts a near-end machine backup module, work with two general digital optical fiber direct station near-end machines that do not have backup functionality, make the near-end facility of whole system that backup functionality be arranged, original digital optical fiber direct station near-end machine equipment does not need to do change.
2), in down link, from base station coupling downlink radio-frequency signal, at first be sent in the backup module, by power splitter this signal is divided into two, and then gives near-end machine 1 and near-end machine 2.
3), two signal digitalized then transmission that the near-end machine will receive by optical fiber, two optical fiber of these two near-end machines and an optical fiber of remote termination all are connected to earlier in the optical switch of this near-end machine backup module, by the decision of the processor unit in module optical switch state, thereby determine this remote termination is to be connected to which platform remote termination; 4 optical switches are arranged in the near-end machine backup module, thereby do not influence the networking state of original digital optical fiber direct station, support near-end machine 4 remote terminations in parallel.It carries out light path by optical switch and switches, and makes that when a near-end machine broke down, the light path of remote termination can be gone in seamless switching in the other near-end machine.
4), in like manner, in up link, remote termination is sent to that near-end machine in the operating state by optical fiber with digital signal, by it digital signal is converted to analog radio-frequency signal, and then this radiofrequency signal is sent to near-end machine backup module;
5), after the near-end machine backup module up radiofrequency signal of two-way that will receive closes the road, give the base station from two near-end machines by feeder line.
The effect that the utility model is useful is: need not original near-end machine is done change, only need to get final product by near-end machine backup module of many increases.Have certain reference and realistic meaning for the equipment reliability problem that solves the digital optical fiber direct station overlay network.
Description of drawings
Fig. 1 is the system block diagram of near-end machine backup functionality;
Fig. 2 is the schematic diagram of Ethernet switch unit;
Fig. 3 is the schematic diagram of optical switch element;
Fig. 4 is the schematic diagram of radio frequency combiner unit.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
Fig. 1 is a whole system block diagram of realizing near-end machine backup functionality.It comprises near-end machine 1, near-end machine 2, remote termination, backup module composition, and wherein backup module is made up of radio frequency combiner unit, Ethernet switch unit, processor unit, optical switch element and power conversion unit again.Processor unit wherein adopts ARM7, and it provides 2 485 interfaces, is connected respectively to near-end machine 1 and near-end machine 2, monitors the operating state of near-end machine in real time, determines whether and need switch.4 control lines of optical switch element are connected to processor; For the near-end machine that provides Ethernet interface to monitor, this backup module also provides the switching of Ethernet, because processor has only an Ethernet interface, so need the Ethernet switch unit to switch, as shown in Figure 2, wherein TS3L100 is one four tunnel a single-pole double throw broadband network switch.
Fig. 3 is the schematic diagram of optical switch element.What U1 to U4 represented is optical switch, and when pin one was not powered, the optical fiber of near-end machine 1 linked to each other with remote termination; When pin one was powered greater than 3V, the optical fiber of near-end machine 2 linked to each other with remote termination.Control line OP_SW1 to OP_SW4 is connected in the processor unit, decides output ' 0 ' or ' 1 ' by processor according to the state of near-end machine.When OP_SW is output as when high, optical switch is powered greater than 3V, and the optical fiber of near-end machine 2 links to each other with remote termination; When OP_SW is output as when low, optical switch is not powered, and the optical fiber of near-end machine 1 links to each other with remote termination.
Fig. 4 is the schematic diagram of radio frequency combiner unit.RF1 is connected to the transmit receive antenna 1 (TX1/RX1) of base station, and RF2 is connected to the TX1/RX1 interface of near-end machine 1, and RF3 is connected to the TX1/RX1 interface of near-end machine 2; RF4 is connected to the TX2/RX2 of base station, and RF5 is connected to the TX2/RX2 interface of near-end machine 1, and RF6 is connected to the TX2/RX2 interface of near-end machine 2.Wherein CP1 and CP2 are merit branch/mixer.
In addition to the implementation, all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection range of the utility model requirement.
Claims (1)
1. a digital optical fiber direct station near-end machine of preparing and carrying part function is characterized in that: insert a near-end machine backup module in two digital optical fiber direct station near-end machines; This near-end machine backup module is made up of radio frequency combiner unit, Ethernet switch unit, optical switch element, processor unit and power conversion unit, and wherein the radio frequency combiner unit connects the feeder line of base station and the radio frequency interface of two digital optical fiber direct station near-end machines; The Ethernet switch unit connects the Ethernet interface of two near-end machines; The light mouth of two near-end machines of optical switch element connection connects the light mouth of remote termination simultaneously, is used for switching the light path of remote termination and near-end machine; Processor unit provides two 485 interface to two a near-end machine, and power conversion unit provides different supply voltages for whole backup units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205796039U CN201860330U (en) | 2010-10-26 | 2010-10-26 | Near-end machine of digital optical fiber repeater with backup function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205796039U CN201860330U (en) | 2010-10-26 | 2010-10-26 | Near-end machine of digital optical fiber repeater with backup function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201860330U true CN201860330U (en) | 2011-06-08 |
Family
ID=44106129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205796039U Expired - Lifetime CN201860330U (en) | 2010-10-26 | 2010-10-26 | Near-end machine of digital optical fiber repeater with backup function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201860330U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589591A (en) * | 2012-02-28 | 2012-07-18 | 平湖波汇通信科技有限公司 | Intelligent multichannel fiber bragg grating (FBG) online backup system |
| CN102780530A (en) * | 2011-12-26 | 2012-11-14 | 深圳市虹远通信有限责任公司 | Optical fiber repeater system |
| CN105337668A (en) * | 2015-07-01 | 2016-02-17 | 南京泰通科技股份有限公司 | High-reliability 400MHz railway flat-regulation digital optical fiber repeater |
-
2010
- 2010-10-26 CN CN2010205796039U patent/CN201860330U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102780530A (en) * | 2011-12-26 | 2012-11-14 | 深圳市虹远通信有限责任公司 | Optical fiber repeater system |
| CN102780530B (en) * | 2011-12-26 | 2015-04-08 | 深圳市虹远通信有限责任公司 | Optical fiber repeater system |
| CN102589591A (en) * | 2012-02-28 | 2012-07-18 | 平湖波汇通信科技有限公司 | Intelligent multichannel fiber bragg grating (FBG) online backup system |
| CN102589591B (en) * | 2012-02-28 | 2015-09-09 | 平湖波汇通信科技有限公司 | Intelligent multi-channel fiber grating online backup system |
| CN105337668A (en) * | 2015-07-01 | 2016-02-17 | 南京泰通科技股份有限公司 | High-reliability 400MHz railway flat-regulation digital optical fiber repeater |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10447343B2 (en) | System and method for controlling radio base station, and related device | |
| CN103595478A (en) | High-reliability GSM-R digital optical fiber repeater and working method thereof | |
| CN203554445U (en) | High-reliability railway GSM-R digital optical fiber repeater | |
| CN101272583B (en) | Method for near-end maintaining radio remote module | |
| CN101814957B (en) | WiFi (Wireless Fidelity) optical fiber radio central control system | |
| WO2002076115A2 (en) | Intelligent multiplexers in an antenna line management system | |
| CN201044447Y (en) | Repeater implementing module backup | |
| CN109639292A (en) | A kind of wireless self-networking communication station based on high-speed data processing FPGA architecture | |
| CN201860330U (en) | Near-end machine of digital optical fiber repeater with backup function | |
| CN104144432A (en) | GSM-R micro-power optical fiber distributed device | |
| CN101969347A (en) | Digital optical repeater using optical protection and implementation method | |
| CN201499228U (en) | N+1 transmitting device of DVB-T | |
| CN101969339A (en) | Digital optic-fiber repeater near-end machine with backup function and implementation method | |
| CN100379305C (en) | Wireless communication base station/trans receiver loop connection method and medium frequency interface structure | |
| CN201479389U (en) | Hot backup fiber optic repeater | |
| CN203632668U (en) | MIMO communication system | |
| CN103079216B (en) | Multi-network fusion access indoor signal coverage system | |
| CN105491577A (en) | Asymmetric single-double current hybrid indoor coverage system | |
| CN103139786B (en) | The relay system of multimode digital radio frequency remote and trunking method | |
| CN204721094U (en) | A kind of Substation Communication System | |
| CN101783980B (en) | Optical transmission device and passive optical network system | |
| CN201042013Y (en) | Optical fiber link backup repeater | |
| CN201274479Y (en) | Optical fiber repeater for TD-SCDMA mobile communication | |
| CN207588868U (en) | Optical fiber repeater with backup handoff functionality | |
| US20040007917A1 (en) | Cascaded network power control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110608 |