CN102905293A - No-battery remote power down warning system and method for repeater - Google Patents
No-battery remote power down warning system and method for repeater Download PDFInfo
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- CN102905293A CN102905293A CN2012103639075A CN201210363907A CN102905293A CN 102905293 A CN102905293 A CN 102905293A CN 2012103639075 A CN2012103639075 A CN 2012103639075A CN 201210363907 A CN201210363907 A CN 201210363907A CN 102905293 A CN102905293 A CN 102905293A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
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Abstract
The invention provides a no-battery remote power down warning system and method for a repeater. A hardware relay circuit module is arranged on a remote terminal; when the remote terminal normally works, the hardware relay circuit module is charged by a power source module of the remote terminal; and when the remote terminal is powered down or in a power failure, the hardware relay circuit module is taken as a back-up power source to continuously supply power to the remote terminal for 10ms to 100ms, meanwhile, the remote terminal transmits power down warning information to a near-end terminal through optical fiber cables, and the near-end terminal transmits the information to a monitoring center after receiving the information. The invention has the beneficial effects that: according to the method, the remote power down warning information is reported to the near-end terminal and the monitoring center in a capacitance power supply manner when the remote terminal is powered down, and a large capacitor replaces a power supply module to supply power for the remove terminal in short time during remote power down, so that the remote terminal has enough time to transmit the power down warning information to the near-end terminal and the monitoring center. The method avoids the problem of easy leakage of storage batteries, reduces the cost of the system and simplifies the structure of the system.
Description
Technical field
The present invention relates to that mobile communications network covers and the optimization field, mainly is a kind of system and method for the repeater far-end power fail warning without battery.
Background technology
In China's mobile communications network, adopted a large amount of repeater equipments.The repeater is by amplifying base station signal in order to realize the covering to the limited area of base station signal.Meanwhile, the introducing of repeater has also increased the complexity of network topology.In order to realize unified monitoring, the management and maintenance to repeater equipment, and then guarantee the transmission quality that it is born in network, each operator is progressively setting up the unified monitoring network for repeater equipment.Wherein, alarming processing mechanism is the key that realizes the repeater equipment effective monitoring.Only have the alarm that equipment is produced to be reported in time, exactly network management center, the quick location of ability problem of implementation, thus solve as early as possible the problem that may affect network quality.
Summary of the invention
Purpose of the present invention is just in order to overcome the deficiency of above-mentioned technology, and provide a kind of system and method for the repeater far-end power fail warning without battery, a kind of cost is lower, and more efficiently solution guarantees that the digital optical fiber direct station movable signal extends stability and the reliability of overlay network.
The present invention solves the technical scheme that its technical problem adopts: the system of this repeater far-end power fail warning without battery, comprise remote termination and near-end machine, near-end machine receives the signal of base station coupling, to remote termination, sends to portable terminal by optical fiber transmission after amplifying; The signal of up remote termination mobile terminal receive is given near-end machine by optical fiber, gives the base station by feeder line; Be provided with hardware electricity sustaining electric circuit module at remote termination, during the remote termination normal operation, the remote termination power module charges to hardware electricity sustaining electric circuit module, when remote termination when outage or power failure, hardware electricity sustaining electric circuit module in support power supply continues power supply 10ms-100ms to remote termination, remote termination is crossed optical fiber cable with the power fail warning information exchange and is passed to near-end machine simultaneously, near-end machine obtains passing to Surveillance center after the information, thereby so that Surveillance center can access the information of the power down unusual condition of remote termination, take measures to ensure that the equipment of digital optical fiber direct station still can proper communication.
Described hardware electricity sustaining electric circuit module comprises large capacitor C 1, and current-limiting resistance R1, R2, Schottky diode D1, D2,12V power supply are connected in series with large capacitor C 1 after by current-limiting resistance R1, R2 parallel connection and link to each other; Large capacitor C 1 is with after Schottky diode D1 forward is connected in series, and one the tunnel is connected with the DC/DC module, and another road oppositely is connected in series Schottky diode D2 and links to each other with the 12V power supply.
The method of this repeater far-end power fail warning without battery of the present invention, the step of the method is as follows: during the remote termination normal operation, the remote termination power module charges to hardware electricity sustaining electric circuit module, when remote termination when outage or power failure, with hardware electricity sustaining electric circuit module in support power supply substitute storage battery and continue power supply 10ms-100ms to remote termination; Remote termination is crossed optical fiber cable with the power fail warning information exchange and is passed to near-end machine simultaneously, and near-end machine obtains passing to Surveillance center after the information, and the power failure warning information reports Surveillance center immediately after guaranteeing to have a power failure.
Further, when remote termination cuts off the power supply or in the time of the 10-100ms behind the power failure, the power fail warning information package of remote termination power supply in remote termination FPGA frame interior, is sent to near-end machine by optical fiber; Behind the near-end machine received frame power fail warning information is deposited in the register, the near-end machine monitor portion goes to read the register that this deposits the power fail warning information of remote termination, obtains remote termination power module information.
The effect that the present invention is useful is: when the method has adopted the remote termination power down mode of capacitances to supply power with far-end power fail warning information reporting to near-end machine and Surveillance center, we have utilized the energy storage characteristic of electric capacity, when the far-end power down, utilize large electric capacity substitute electric power module to power in short-term to REMOTE MACHINE, make remote termination have the sufficient time to send the power fail warning information of remote termination to near-end machine and Surveillance center.The method had both been avoided the problem of the easy leakage of storage battery, had also reduced the cost of system, had simplified system configuration.
Description of drawings
Fig. 1 is the digital optical fiber repeater system schematic diagram;
Fig. 2 hardware electricity sustaining electric circuit of the present invention figure;
Fig. 3 repeater cascade network Organization Chart;
Fig. 4 module principle figure of the present invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, reach for example below in conjunction with accompanying drawing, the present invention is further elaborated.Should be appreciated that described herein giving an example only in order to explain the present invention, be not intended to limit the present invention.
Fig. 1 is the digital optical fiber repeater system block diagram, and this system includes near-end machine and remote termination, and near-end machine receives the signal of base station coupling, to remote termination, sends to portable terminal by optical fiber transmission after amplifying.The signal of up remote termination mobile terminal receive is given near-end machine by optical fiber, gives the base station by feeder line.Simultaneously, remote termination is given near-end machine with various monitor states by optical fiber transmission, and near-end machine is crossed wired and wireless mode with the information exchange of various monitoring and reported Surveillance center.
Fig. 2 is hardware electricity sustaining electric circuit figure of the present invention, and R1, R2 are current-limiting resistance, and its effect is current limliting when the remote termination power module charges to large capacitor C 1.D1, D2 are Schottky diode, and about pressure drop 0.3V, the D1 effect is that assurance capacitor charging process is charged to it by two current-limiting resistances, preventing that directly charging causes short circuit to C1 by the D2 path.The effect of D2 is that other use anti-filling of module of 12V on preventing when capacitor discharge circuit, guarantees that large electric capacity is separately to the DC/DC module for power supply.This circuit working principle is:
When 1, far end supply worked, power module 12V exported to the DC/DC power supply, and simultaneously by current-limiting resistance R1, R2 gives large capacitor C 1 charging.
2, when the remote termination power failure, 12V opens circuit, and the DC/DC input terminal voltage becomes 0V, and at this moment, the D1 two ends produce pressure reduction, and large capacitor C 1 begins to power to DC/DC.Electric weight begins to reduce on the electric capacity, until output voltage is lower than the minimum voltage conversion value 5V of DC/DC module, then total energy storage of electric capacity is W=∫
5 121/2*CV
2=0.375W, DC/DC module specific energy consumption P are 7.6W/ about second, so about discharge time T=W/P=50mS.After the power down of actual oscilloscope test remote termination electric capacity can continued power 70mS about.
In direct discharging station used, a near-end machine often needed a lot of level of cascade far-end, and Fig. 3 is the cascade network Organization Chart of repeater, 4 light mouths of a near-end machine, at most 32 remote terminations of cascade.Every remote termination has a device numbering and can not be identical.In the time of initialized, by host computer, every remote termination is carried out the setting of device numbering.Remote termination leaves device numbering in the specific location of CPRI protocol frame structure.The frame structure (being defined as superframe) that CPRI agreement during this uses is comprised of 4096 bytes, each byte is 16bits, each 16 byte forms a basic frame (superframe is comprised of 256 basic frames).First byte of each basic frame is control word, and remaining 15 bytes is data.Therefore a superframe has 256 control words, is defined as first control word of 0-255(superframe for being defined as 0).In the design device numbering left in 218,219,220,221 these 4 control words (8 remote terminations of the maximum cascades of each optical fiber interface of near-end machine, each device numbering is 8bits).Secondly, every remote termination has an output routing address, such as Fig. 3, is worth and is 2-9.Routing address is that the device numbering of 2 remote termination is stored in 218 most-significant byte, routing address is that the device numbering of 3 remote termination is stored in 218 least-significant byte, according to such ordering, the device numbering of 8 remote terminations is deposited corresponding control word according to the routing address of separately output.
Fig. 4 is module principle figure of the present invention, and the power module of remote termination is powered to remote termination during normal operation, gives simultaneously the electricity sustaining electric circuit module for power supply always, and large electric capacity is in the state that is full of electricity always.When remote termination cut off the power supply, electric capacity began discharge, replaced power module to the DC/DC module for power supply, so that remote termination can work at short notice.Fpga chip pin senses on the remote termination is drawn high (high level power supply power-fail alarm to the power down indication pin DC OK of power module, low level is normal), this information is carried out a kind of simple coding, be about to high level and expand to 4 data 4'b1010, low level expands to 4 data 4'b0101, by CPRI protocol frame group bag.Because a near-end machine can connect at most 8 remote terminations, so power fail warning informational needs 4*8=32bits, leave power fail warning information in 208,209 these 2 control words (altogether 32bits), value be the power fail warning of 2 remote termination be stored in 208 high 4, value is that the power fail warning of 3 remote termination is stored in 208 9-12 position, value is that the power fail warning of 4 remote termination is stored in 208 5-8 position, and 8 remote terminations are deposited successively according to routing address.At last, real-time with power information and device numbering by optical fiber transmission to near-end machine.
After near-end machine software receiver module receives the frame originating point information of CPRI protocol frame, separate frame and process.Unpacking of power supply power-fail warning information, after needing near-end machine and remote termination synchronism stability (surpass 2 seconds synchronously and be considered as synchronism stability), separate again package operation, receive only 5(4'b0101, low level, the far end supply power supply is normal) and A(4'b1010, high level, far-end power fail warning) these two data.Unpacking of device numbering also needs to separate package operation behind near-end machine and the remote termination synchronism stability again, and the data that solution contracts out remain unchanged within the time of 4 superframes, just determines it is the device numbering of one of them remote termination.
At last, corresponding power alarm information is mutually corresponding with device numbering, and needing a degree of depth is 256, and width is 28 RAM, will be worth preservation.Behind near-end machine and remote termination synchronism stability, start a counter, the scope of its value is between 0-255, and the scope of device numbering value is between 1-254.Just can scan the device numbering that near-end machine receives with this counter like this.When scanning, need setting to enable, enabled to enable as writing of RAM by this.A near-end machine has 4 light mouths, the device numbering of 4 light mouths of poll scanning.Take A light mouth as example, when A light mouth receives a device numbering, be that 218,219,220,221 one of them most-significant byte or least-significant byte arranges writing of corresponding ram location and enable according to what receive, therefore a light mouth just has 8 kinds to enable.Because near-end machine at most can 32 remote terminations of cascade, so there are at most 32 kinds to enable.Enable according to 32 kinds, deposit device numbering and the corresponding power alarm information that scans in RAM, the information in the real-time renewal ram table.
Deposit informational needs in and report CPU, by IIC communication, the address transfer that CPU regularly will read RAM is to FPGA between CPU and the FPGA, and CPU sends over reads the device numbering that the address is exactly the remote termination in network, FPGA gives CPU with power fail warning information in the address according to reading of receiving.Thereby realize the function of remote termination power fail warning.
The above is only to be preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvement and modification, these improvement and modification also should be considered as protection scope of the present invention.
Claims (4)
1. the system without the repeater far-end power fail warning of battery comprises remote termination and near-end machine, and near-end machine receives the signal of base station coupling, to remote termination, sends to portable terminal by optical fiber transmission after amplifying; The signal of up remote termination mobile terminal receive is given near-end machine by optical fiber, gives the base station by feeder line; It is characterized in that: be provided with hardware electricity sustaining electric circuit module at remote termination, during the remote termination normal operation, the remote termination power module charges to hardware electricity sustaining electric circuit module, when remote termination when outage or power failure, hardware electricity sustaining electric circuit module in support power supply continues power supply 10ms-100ms to remote termination, remote termination is crossed optical fiber cable with the power fail warning information exchange and is passed to near-end machine simultaneously, and near-end machine obtains passing to Surveillance center after the information.
2. the system of the repeater far-end power fail warning without battery according to claim 1, it is characterized in that: described hardware electricity sustaining electric circuit module comprises large capacitor C 1, current-limiting resistance R1, R2, Schottky diode D1, D2,12V power supply are connected in series with large capacitor C 1 after by current-limiting resistance R1, R2 parallel connection and link to each other; Large capacitor C 1 is with after Schottky diode D1 forward is connected in series, and one the tunnel is connected with the DC/DC module, and another road oppositely is connected in series Schottky diode D2 and links to each other with the 12V power supply.
3. method without the repeater far-end power fail warning of battery, it is characterized in that: the step of the method is as follows: during the remote termination normal operation, the remote termination power module charges to hardware electricity sustaining electric circuit module, when remote termination when outage or power failure, with hardware electricity sustaining electric circuit module in support power supply substitute storage battery and continue power supply 10ms-100ms to remote termination; Remote termination is crossed optical fiber cable with the power fail warning information exchange and is passed to near-end machine simultaneously, and near-end machine obtains passing to Surveillance center after the information.
4. the method for the repeater far-end power fail warning without battery according to claim 3, it is characterized in that: when remote termination cuts off the power supply or in the time of the 10-100ms behind the power failure, the power fail warning information package of remote termination power supply in remote termination FPGA frame interior, is sent to near-end machine by optical fiber; Behind the near-end machine received frame power fail warning information is deposited in the register, the near-end machine monitor portion goes to read the register that this deposits the power fail warning information of remote termination, obtains remote termination power module information.
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| CN2012103639075A CN102905293A (en) | 2012-09-26 | 2012-09-26 | No-battery remote power down warning system and method for repeater |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105516298A (en) * | 2015-12-04 | 2016-04-20 | 上海市共进通信技术有限公司 | Remote control module mounted on intelligent gateway and intelligent gateway remote control system |
| CN107437950A (en) * | 2017-08-04 | 2017-12-05 | 杭州长泽科技有限公司 | A kind of tunnel fm broadcast signal numeral covering scheme and implementation method |
| CN113316100A (en) * | 2020-02-26 | 2021-08-27 | 成都鼎桥通信技术有限公司 | Client terminal equipment and power failure reporting method of client terminal equipment |
| CN116963135A (en) * | 2023-09-20 | 2023-10-27 | 四川恒湾科技有限公司 | O-RU power failure alarm reporting method, device and system |
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| CN201369606Y (en) * | 2009-01-16 | 2009-12-23 | 深圳市粤海电信技术有限公司 | Power supply switching device for optical fiber repeater far-end machine |
| CN101860442A (en) * | 2010-06-03 | 2010-10-13 | 中兴通讯股份有限公司 | Exchanger, power supply device and method for realizing power-down remote-end alarm |
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Patent Citations (3)
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| CN201063794Y (en) * | 2007-07-16 | 2008-05-21 | 浙江三维通信股份有限公司 | Mobile communications network overlapping effect remote dial testing system |
| CN201369606Y (en) * | 2009-01-16 | 2009-12-23 | 深圳市粤海电信技术有限公司 | Power supply switching device for optical fiber repeater far-end machine |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105516298A (en) * | 2015-12-04 | 2016-04-20 | 上海市共进通信技术有限公司 | Remote control module mounted on intelligent gateway and intelligent gateway remote control system |
| CN105516298B (en) * | 2015-12-04 | 2019-08-06 | 上海市共进通信技术有限公司 | Intelligent gateway tele-control system including remote control module |
| CN107437950A (en) * | 2017-08-04 | 2017-12-05 | 杭州长泽科技有限公司 | A kind of tunnel fm broadcast signal numeral covering scheme and implementation method |
| CN113316100A (en) * | 2020-02-26 | 2021-08-27 | 成都鼎桥通信技术有限公司 | Client terminal equipment and power failure reporting method of client terminal equipment |
| CN113316100B (en) * | 2020-02-26 | 2022-11-04 | 成都鼎桥通信技术有限公司 | Client terminal equipment and power failure reporting method of client terminal equipment |
| CN116963135A (en) * | 2023-09-20 | 2023-10-27 | 四川恒湾科技有限公司 | O-RU power failure alarm reporting method, device and system |
| CN116963135B (en) * | 2023-09-20 | 2023-12-08 | 四川恒湾科技有限公司 | O-RU power failure alarm reporting method, device and system |
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Application publication date: 20130130 |