CN204013546U - The optical fiber distribution system with two master units - Google Patents
The optical fiber distribution system with two master units Download PDFInfo
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- CN204013546U CN204013546U CN201420518819.2U CN201420518819U CN204013546U CN 204013546 U CN204013546 U CN 204013546U CN 201420518819 U CN201420518819 U CN 201420518819U CN 204013546 U CN204013546 U CN 204013546U
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Abstract
The utility model provides a kind of optical fiber distribution system with two master units, and it comprises: the first master unit, the second master unit, optical fiber splitter, a plurality of expanding element, a plurality of far-end unit.The first master unit is coupled into the downlink radio-frequency signal of at least one information source the optical fiber distribution system with two master units, after converting downlink radio-frequency signal to digital signal, carry out framing to obtain digital signal frame, and through opto-electronic conversion, be that light signal is issued to a plurality of expanding elements by optical fiber splitter by optical fiber by digital signal frame, and the light signal that a plurality of expanding elements are uploaded through optical fiber splitter is separated frame after converting digital signal to, then convert up radiofrequency signal to and upload at least one information source.The second master unit and the first master unit cascade also backup each other, and start normal work during in malfunction when the first master unit.Receiving and transmitting signal between a plurality of expanding elements and a plurality of far-end unit.Optical fiber splitter is between master unit and expanding element.
Description
Technical field
The utility model relates to optical fiber distribution system, relates in particular to the optical fiber distribution system with two master units.
Background technology
Optical fiber distribution system be mobile network in the extension of Indoor environment and outdoor cover, be the important means that promotes network coverage breadth and depth, the inside and outside traffic of absorption chamber, promotes network quality and quality of service.Current optical fiber distribution system generally comprises a master unit, a plurality of expanding element and a plurality of far-end unit.But because master unit often connects a plurality of information sources and a plurality of expanding element simultaneously, its business of bearing meets larger.Therefore,, once job failure appears in master unit, whole optical fiber distribution system cannot work.
Utility model content
In order to solve the above prior-art problems, the utility model provides a kind of optical fiber distribution system with two master units, and in having the optical fiber distribution system of two master units, two master unit cascades also backup each other, and have improved the stability of optical fiber distribution system.
According to first aspect of the present utility model, a kind of optical fiber distribution system with two master units is provided, it is characterized in that, comprising:
The first master unit, the second master unit, optical fiber splitter, a plurality of expanding element, a plurality of far-end unit, wherein,
The optical fiber distribution system described in described the first master unit is coupled into the downlink radio-frequency signal of at least one information source with two master units, after converting described downlink radio-frequency signal to digital signal, carry out framing to obtain digital signal frame, and through opto-electronic conversion, be that light signal is issued to described a plurality of expanding element by described optical fiber splitter by optical fiber by described digital signal frame, and after converting digital signal to, the light signal that described a plurality of expanding elements are uploaded through described optical fiber splitter separates frame, then convert up radiofrequency signal to and upload to described at least one information source,
Described the second master unit and described the first master unit cascade also backup each other, and when described the first master unit starts normal work during in malfunction, the optical fiber distribution system described in described the second master unit is coupled into the downlink radio-frequency signal of described at least one information source with two master units, after converting described downlink radio-frequency signal to digital signal, carry out framing to obtain digital signal frame, and through opto-electronic conversion, be that light signal is issued to described a plurality of expanding element by described optical fiber splitter by optical fiber by described digital signal frame, and after converting digital signal to, the light signal that described a plurality of expanding elements are uploaded through described optical fiber splitter separates frame, then convert up radiofrequency signal to and upload to described at least one information source,
Described a plurality of expanding element issues described the first master unit or described the second master unit light signal through described optical fiber splitter is converted to digital signal or analog if signal and is issued to described a plurality of far-end unit, and the signal that described a plurality of far-end units are uploaded closes road, then through described optical fiber splitter, upload to described the first master unit or described the second master unit
The digital signal that described a plurality of far-end unit issues described a plurality of expanding elements or analog if signal conversion radiofrequency signal, to realize the wireless coverage of described at least one information source, and the up radiofrequency signal receiving is changed into digital signal or analog if signal, to reach expanding element
Described optical fiber splitter is between described the first master unit and described the second master unit and described a plurality of expanding element, and it is connected to described the first master unit and described the second master unit by each connected expanding element simultaneously.
The optical fiber distribution system with two master units according to the utility model second aspect, is characterized in that, described the first master unit comprises:
First memory, it waits to be issued to the digital signal of described a plurality of expanding elements and the digital signal converting to from the light signal of described a plurality of expanding elements for storing;
The first state monitor, it is in malfunction or normal operating conditions for monitoring described the first master unit;
The first data synchronization unit, it is synchronized to described first memory for the digital signal of in the situation that described the first master unit returns to normal operating conditions from malfunction, described the second master unit being stored in described shape the first state monitor monitors, and
Described the second master unit comprises:
Second memory, it waits to be issued to the digital signal of described a plurality of expanding elements and the digital signal converting to from the light signal of described a plurality of expanding elements for storing;
The second state monitor, it is in malfunction or normal operating conditions for monitoring described the second master unit;
The second data synchronization unit, it is synchronized to described second memory for the digital signal of in the situation that described the second master unit returns to normal operating conditions from malfunction, described the first master unit being stored in described shape the second state monitor monitors,
Wherein, described the first data synchronization unit is connected with described the second data synchronization unit.
The optical fiber distribution system with two master units according to the utility model third aspect, is characterized in that,
Described the first master unit comprises:
First order connecting port, it is connected with described the first data synchronization unit, and
Described the second master unit comprises:
Second level connecting port, it is connected with described the second data synchronization unit,
Wherein, described first order connecting port is connected by optical fiber with described second level connecting port.
The optical fiber distribution system with two master units according to the utility model fourth aspect, is characterized in that, described at least one information source comprises one or more in GSM information source, TD-SCDMA information source and TD-LTE information source.
According to the optical fiber distribution system with two master units of the utility model the 5th aspect, it is characterized in that, a part of expanding element and described optical fiber splitter in described a plurality of expanding element connect in succession by optical fiber direct, and all the other expanding elements in described a plurality of expanding elements are connected with described optical fiber splitter indirectly by described a part of expanding element.
The optical fiber distribution system with two master units according to the utility model the 6th aspect, is characterized in that, described all the other expanding elements are by optical fiber and at least one expanding element cascade.
The optical fiber distribution system with two master units according to the utility model the 7th aspect, is characterized in that, an expanding element connects one or more far-end units.
The optical fiber distribution system with two master units according to the utility model eight aspect, is characterized in that, between described a plurality of far-end units and described a plurality of expanding elements, by optoelectronic composite cable, is connected.
The optical fiber distribution system with two master units according to the utility model the 9th aspect, is characterized in that, each in described a plurality of expanding elements all has the access interface of fixed network broadband or WLAN.
The optical fiber distribution system with two master units according to the utility model the tenth aspect, is characterized in that, each in described a plurality of far-end units all has the access interface of fixed network broadband or WLAN.
According to the optical fiber distribution system with two master units of the present utility model, there is following useful technique effect: because optical fiber distribution system of the present utility model has mutually redundant pair of master unit, therefore, even if a master unit breaks down, another master unit also can steady operation, and when the master unit breaking down returns to normal operating conditions, its digital signal that master unit that is in normal operating conditions can be stored is synchronized to self.Therefore, according to the optical fiber distribution system with two master units of the present utility model, greatly improved the stability of a system.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model execution mode or technical scheme of the prior art, to the accompanying drawing of required use in execution mode or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only execution modes more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 shows the schematic diagram that has the optical fiber distribution system of two master units according to of the present utility model.
Fig. 2 shows according to the connection diagram of mutually redundant pair of master unit in the optical fiber distribution system with two master units of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model execution mode, technical scheme in the utility model execution mode is clearly and completely described, obviously, described execution mode is only the utility model part execution mode, rather than whole execution modes.Execution mode based in the utility model, those of ordinary skills are not making the every other execution mode obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Fig. 1 shows the schematic diagram that has the optical fiber distribution system of two master units according to of the present utility model.
As shown in Figure 1, according to the optical fiber distribution system with two master units of the present utility model, comprise: the first master unit 101, the second master unit 102, optical fiber splitter 103, a plurality of expanding element 104, a plurality of far-end unit 105.The first master unit 101 is coupled into the downlink radio-frequency signal of at least one information source the optical fiber distribution system with two master units, after converting downlink radio-frequency signal to digital signal, carry out framing to obtain digital signal frame, and through opto-electronic conversion, be that light signal is issued to a plurality of expanding elements 104 by optical fiber splitter 103 by optical fiber by digital signal frame, and after the light signal that a plurality of expanding elements 104 are uploaded through optical fiber splitter 103 converts digital signal to, separate frame, then convert up radiofrequency signal to and upload at least one information source.
As shown in Figure 1, at least one information source comprises one or more in GSM information source, TD-SCDMA information source and TD-LTE information source.Preferably, information source can be connected with the second master unit 102 with the first master unit 101 by feeder line.
The second master unit 102 and the first master unit 101 cascades also backup each other, and start normal work during in malfunction when the first master unit 101.Working method with the first master unit 101 when the normal operating conditions is the same, the second master unit 102 is coupled into the downlink radio-frequency signal of at least one information source the optical fiber distribution system with two master units, after converting downlink radio-frequency signal to digital signal, carry out framing to obtain digital signal frame, and through opto-electronic conversion, be that light signal is issued to a plurality of expanding elements 104 by optical fiber splitter 103 by optical fiber by digital signal frame, and after converting digital signal to, the light signal that a plurality of expanding elements 104 are uploaded through optical fiber splitter 103 separates frame, then convert up radiofrequency signal to and upload at least one information source.
A plurality of expanding elements 104 issue the first master unit 101 or the second master unit 102 light signal through optical fiber splitter 103 is converted to digital signal or analog if signal and is issued to a plurality of far-end units 105, and the signal that a plurality of far-end units 105 are uploaded closes road, then through optical fiber splitter 103, upload to the first master unit 101 or the second master unit 102.
The digital signal that a plurality of far-end units 105 issue a plurality of expanding elements 104 or analog if signal conversion radiofrequency signal, to realize the wireless coverage of at least one information source, and the up radiofrequency signal receiving is changed into digital signal or analog if signal, to reach expanding element 104.
Optical fiber splitter 103 is between the first master unit 101 and the second master unit 102 and a plurality of expanding element 104, and it is connected to the first master unit 101 and the second master unit 102 by each connected expanding element 104 simultaneously.
According in the optical fiber distribution system with two master units of the present utility model, at synchronization, in two master units, only has one to information source and expanding element transmitted signal.That is, at a master unit, during in normal operating conditions, another master unit is standby.Although standby master unit can receive the signal from information source and expanding element, only store these signals, and not to information source and expanding element transmitted signal.And when one of two master units are during in malfunction, originally standby master unit just starts normal work,, has both received the signal from information source and expanding element that is, again to information source and expanding element transmitted signal.Certainly, it will be understood by those skilled in the art that when the master unit in malfunction recovers normal, because another master unit is in normal operating conditions, therefore recover normal master unit and keep armed state.
Because optical fiber distribution system of the present utility model has mutually redundant pair of master unit, therefore, even if a master unit breaks down, another master unit also can steady operation, and when the master unit breaking down returns to normal operating conditions, its digital signal that master unit that is in normal operating conditions can be stored is synchronized to self.Therefore, according to the optical fiber distribution system with two master units of the present utility model, greatly improved the stability of a system.
Fig. 2 shows according to the connection diagram of mutually redundant pair of master unit in the optical fiber distribution system with two master units of the present utility model.
As shown in Figure 2, according in the optical fiber distribution system with two master units of the present utility model, the first master unit 101 comprises: first memory 1011, and it waits to be issued to the digital signal of a plurality of expanding elements 104 and the digital signal converting to from the light signal of a plurality of expanding elements 104 for storing; The first state monitor 1012, it is in malfunction or normal operating conditions for monitoring the first master unit 101; The first data synchronization unit 1013, it is synchronized to first memory 1011 for monitor the digital signal of the in the situation that the first master unit 101 returning to normal operating conditions from malfunction, the second master unit 102 (second memory 1021) being stored at shape the first state monitor 1012.The second master unit 102 comprises: second memory 1021, and it waits to be issued to the digital signal of a plurality of expanding elements 104 and the digital signal converting to from the light signal of a plurality of expanding elements 104 for storing; The second state monitor 1022, it is in malfunction or normal operating conditions for monitoring the second master unit 102; The second data synchronization unit 1023, it is synchronized to second memory 1021 for monitor the digital signal of the in the situation that the second master unit 102 returning to normal operating conditions from malfunction, the first master unit 101 (first memory 1011) being stored at shape the second state monitor 1022.The first data synchronization unit 1013 is connected with described the second data synchronization unit 1023.The first data synchronization unit 1013 can adopt arbitrary wired connection or wireless connections mode with the connected mode of described the second data synchronization unit 1023.
The structure that it will be understood by those skilled in the art that the first master unit 101 shown in Fig. 2 and the second master unit 102 is only that schematically, in order to realize mutual backup functionality, the first master unit 101 and the second master unit 102 can also have other structure.Preferably, the first master unit 101 comprises: first order connecting port 1014, it is connected with the first data synchronization unit 1013, and the second master unit 102 comprises: second level connecting port 1024, it is connected with the second data synchronization unit 1023, wherein, first order connecting port 1014 is connected by optical fiber with second level connecting port 1024.
As shown in Figure 1, according in the optical fiber distribution system with two master units of the present utility model, a part of expanding element 104 in a plurality of expanding elements (for example, Fig. 1 schematically shows 3 expanding elements 104) connect in succession by optical fiber direct with optical fiber splitter 103, all the other expanding elements in a plurality of expanding elements are connected with optical fiber splitter 103 indirectly by the expanding element 104 (that is, 3 expanding elements 104 that are connected with optical fiber splitter 103 shown in Fig. 1) being connected with optical fiber splitter 103.Preferably, according in the optical fiber distribution system with two master units of the present utility model, not with the direct-connected expanding element of optical fiber splitter 103 by optical fiber and at least one expanding element cascade.; according in the optical fiber distribution system with two master units of the present utility model; a plurality of expanding elements can be mutually by subtending port through optical fiber interconnections, finally by one, be connected to the first master unit 101 and the second master unit 102 with the direct-connected expanding element of optical fiber splitter 103.
As shown in Figure 1, according in the optical fiber distribution system with two master units of the present utility model, an expanding element 104 can connect one or more far-end units 105.Expanding element 104 can be connected with far-end unit 105 by various cables.Preferably, between a plurality of far-end units 105 and a plurality of expanding elements 104, by optoelectronic composite cable, be connected.In the case, 104 pairs of far-end units 105 of expanding element can adopt the far confession of optoelectronic composite cable DC low-voltage, and supply district can be DC-40V～-57V.
According in the optical fiber distribution system with two master units of the present utility model, each in a plurality of expanding elements all can have the access interface of fixed network broadband or WLAN.Therefore, expanding element can provide pass-through channel for fixed network broadband or WLAN, has expanded the range of application of expanding element, has improved the reliability of expanding element.
According in the optical fiber distribution system with two master units of the present utility model, each in a plurality of far-end units all can have the access interface of fixed network broadband or WLAN.Therefore, far-end unit can provide pass-through channel for fixed network broadband or WLAN, has expanded the range of application of far-end unit, has improved the reliability of far-end unit.
Those skilled in the art can also recognize that various illustrative components, blocks (illustrativelogical block), unit and step that the utility model embodiment lists can pass through electronic hardware, computer software, or both combinations realize.For the clear replaceability (interchangeability) of showing hardware and software, above-mentioned various illustrative components (illustrativecomponents), unit and step have been described their function generally.Such function is to realize by hardware or software the designing requirement of depending on specific application and whole system.Those skilled in the art can, for every kind of specific application, can make in all sorts of ways and realize described function, but this realization should not be understood to exceed the scope of the utility model embodiment protection.
Various illustrative logical block described in the utility model embodiment, or unit can pass through general processor, digital signal processor, application-specific integrated circuit (ASIC) (ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or the design of above-mentioned any combination realizes or operates described function.General processor can be microprocessor, and alternatively, this general processor can be also any traditional processor, controller, microcontroller or state machine.Processor also can be realized by the combination of calculation element, for example digital signal processor and microprocessor, multi-microprocessor, a Digital Signal Processor Core of one or more microprocessors associating, or any other similarly configuration realize.
Above embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; these are only embodiment of the present utility model; and be not used in and limit protection range of the present utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.
Claims (10)
1. there is an optical fiber distribution system for two master units, it is characterized in that, comprising:
The first master unit, the second master unit, optical fiber splitter, a plurality of expanding element, a plurality of far-end unit, wherein,
The optical fiber distribution system described in described the first master unit is coupled into the downlink radio-frequency signal of at least one information source with two master units, after converting described downlink radio-frequency signal to digital signal, carry out framing to obtain digital signal frame, and through opto-electronic conversion, be that light signal is issued to described a plurality of expanding element by described optical fiber splitter by optical fiber by described digital signal frame, and after converting digital signal to, the light signal that described a plurality of expanding elements are uploaded through described optical fiber splitter separates frame, then convert up radiofrequency signal to and upload to described at least one information source,
Described the second master unit and described the first master unit cascade also backup each other, and when described the first master unit starts normal work during in malfunction, the optical fiber distribution system described in described the second master unit is coupled into the downlink radio-frequency signal of described at least one information source with two master units, after converting described downlink radio-frequency signal to digital signal, carry out framing to obtain digital signal frame, and through opto-electronic conversion, be that light signal is issued to described a plurality of expanding element by described optical fiber splitter by optical fiber by described digital signal frame, and after converting digital signal to, the light signal that described a plurality of expanding elements are uploaded through described optical fiber splitter separates frame, then convert up radiofrequency signal to and upload to described at least one information source,
Described a plurality of expanding element issues described the first master unit or described the second master unit light signal through described optical fiber splitter is converted to digital signal or analog if signal and is issued to described a plurality of far-end unit, and the signal that described a plurality of far-end units are uploaded closes road, then through described optical fiber splitter, upload to described the first master unit or described the second master unit
The digital signal that described a plurality of far-end unit issues described a plurality of expanding elements or analog if signal conversion radiofrequency signal, to realize the wireless coverage of described at least one information source, and the up radiofrequency signal receiving is changed into digital signal or analog if signal, to reach expanding element
Described optical fiber splitter is between described the first master unit and described the second master unit and described a plurality of expanding element, and it is connected to described the first master unit and described the second master unit by each connected expanding element simultaneously.
2. the optical fiber distribution system with two master units as claimed in claim 1, is characterized in that, described the first master unit comprises:
First memory, it waits to be issued to the digital signal of described a plurality of expanding elements and the digital signal converting to from the light signal of described a plurality of expanding elements for storing;
The first state monitor, it is in malfunction or normal operating conditions for monitoring described the first master unit;
The first data synchronization unit, it is synchronized to described first memory for the digital signal of in the situation that described the first master unit returns to normal operating conditions from malfunction, described the second master unit being stored in described shape the first state monitor monitors, and
Described the second master unit comprises:
Second memory, it waits to be issued to the digital signal of described a plurality of expanding elements and the digital signal converting to from the light signal of described a plurality of expanding elements for storing;
The second state monitor, it is in malfunction or normal operating conditions for monitoring described the second master unit;
The second data synchronization unit, it is synchronized to described second memory for the digital signal of in the situation that described the second master unit returns to normal operating conditions from malfunction, described the first master unit being stored in described shape the second state monitor monitors,
Wherein, described the first data synchronization unit is connected with described the second data synchronization unit.
3. the optical fiber distribution system with two master units as claimed in claim 2, is characterized in that,
Described the first master unit comprises:
First order connecting port, it is connected with described the first data synchronization unit, and
Described the second master unit comprises:
Second level connecting port, it is connected with described the second data synchronization unit,
Wherein, described first order connecting port is connected by optical fiber with described second level connecting port.
4. the optical fiber distribution system with two master units as claimed in claim 1, is characterized in that, described at least one information source comprises one or more in GSM information source, TD-SCDMA information source and TD-LTE information source.
5. the optical fiber distribution system with two master units as claimed in claim 1, it is characterized in that, a part of expanding element and described optical fiber splitter in described a plurality of expanding element connect in succession by optical fiber direct, and all the other expanding elements in described a plurality of expanding elements are connected with described optical fiber splitter indirectly by described a part of expanding element.
6. the optical fiber distribution system with two master units as claimed in claim 5, is characterized in that, described all the other expanding elements are by optical fiber and at least one expanding element cascade.
7. the optical fiber distribution system with two master units as claimed in claim 1, is characterized in that, an expanding element connects one or more far-end units.
8. the optical fiber distribution system with two master units as claimed in claim 7, is characterized in that, between described a plurality of far-end units and described a plurality of expanding elements, by optoelectronic composite cable, is connected.
9. the optical fiber distribution system with two master units as claimed in claim 1, is characterized in that, each in described a plurality of expanding elements all has the access interface of fixed network broadband or WLAN.
10. the optical fiber distribution system with two master units as claimed in claim 1, is characterized in that, each in described a plurality of far-end units all has the access interface of fixed network broadband or WLAN.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109195029A (en) * | 2018-09-20 | 2019-01-11 | 郑州三友软件科技有限公司 | A kind of communication full-service light distribution system and method for transmitting signals |
| CN109379140A (en) * | 2018-11-22 | 2019-02-22 | 淮北市硕华机械设备有限公司 | A kind of optical fiber distribution system and its communication means |
| CN114362826A (en) * | 2020-09-28 | 2022-04-15 | 四川省铭科信通信技术有限公司 | Communication system based on full digital transmission of photoelectric composite cable |
-
2014
- 2014-09-11 CN CN201420518819.2U patent/CN204013546U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109195029A (en) * | 2018-09-20 | 2019-01-11 | 郑州三友软件科技有限公司 | A kind of communication full-service light distribution system and method for transmitting signals |
| CN109379140A (en) * | 2018-11-22 | 2019-02-22 | 淮北市硕华机械设备有限公司 | A kind of optical fiber distribution system and its communication means |
| CN114362826A (en) * | 2020-09-28 | 2022-04-15 | 四川省铭科信通信技术有限公司 | Communication system based on full digital transmission of photoelectric composite cable |
| CN114362826B (en) * | 2020-09-28 | 2023-11-28 | 四川省铭科信通信技术有限公司 | Communication system based on all-digital transmission of photoelectric composite cable |
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