CN110456385A - One kind can cascade GPS signal distribution system - Google Patents
One kind can cascade GPS signal distribution system Download PDFInfo
- Publication number
- CN110456385A CN110456385A CN201910622640.9A CN201910622640A CN110456385A CN 110456385 A CN110456385 A CN 110456385A CN 201910622640 A CN201910622640 A CN 201910622640A CN 110456385 A CN110456385 A CN 110456385A
- Authority
- CN
- China
- Prior art keywords
- signal distribution
- gps
- output port
- distribution unit
- cascade
- 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.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
Abstract
The present invention relates to mobile communication fields, disclosing one kind can cascade GPS signal distribution system, it include: at least two signal distribution units, signal distribution unit is equipped with antenna input port, junior's output port and GPS output port, antenna input port with outdoor GPS antenna or upper level signal distribution unit for connecting, junior's output port is used to cascade with next stage signal distribution unit, and GPS output port with the GPS synchronization signal mouth of BBU for connecting；Subtending cable, one end of subtending cable is mounted in the lower end output port of signal distribution unit, the other end is installed in the antenna input port of next stage signal distribution unit, so that GPS amplification distribution system has configurable cascaded topology, and cascade is to the monitoring function of Topology connection, so that the system only needs one group of external GPS antenna that can flexibly support the application demand from ten multichannels to tens tunnels, reduces subsequent upgrade dilatation and the newly-built and reconstruction accessed outside computer room is put into.
Description
Technical field
The present invention relates to mobile communication fields, and more specifically, in particular to one kind can cascade GPS signal distribution system
System.
Background technique
Refering to Figure 1, during mobile communication networking, in order to keep each base station of network to cooperate, base station
BBU need synchronous with the precision interval clock of control system using unified network measure, basic conception is to pass through hardware and software
The internal clock of the network equipment (client computer) is synchronous with the realization of the master clock of main controller, mainly pass through IEEE1588 wired network at present
Network synchronization is synchronous with GPS (or Beidou) signal time service, and general two systems need back-up job simultaneously, wherein in the side of synchronization GPS
Face, in the computer room construction that BBU is concentrated, roof needs to set up up to tens GPS time service antennas, is frequently run onto because roof is flat
The problem that the reasons such as the resource shortages such as platform, hoistway, property coordination can not carry out.It is proposed GPS amplification in the industry in response to this
Distribution system, GPS signal is carried out active amplification to system and secondary multichannel is distributed, and can realize most just with 1 GPS antenna
Plug into ten multichannel BBU more.It realizes that more BBU share GPS antenna, same location GPS antenna quantity is greatly decreased, saving GPS construction
While investment, it can effectively solve to cause construction that can not carry out because of the resource shortages such as roof platform, hoistway and user's obstruction
Problem.BBU is baseband processing unit, and a BBU can support multiple RRU.It, can be fine using BBU+RRU Multi channel
The in-door covering of ground solution large stadium.
But since the scale of computer room is different, the GPS number of passages that needs support simultaneously does not have typical amounts and configures,
Equipment generally 1 point of 12-16 branch in design when in face of more BBU demands, generally requires and increases one or more sets newly and set
It is standby, new GPS antenna then is disposed in roof to set up one or more sets new systems, this scheme increases roof antenna
Quantity and transmission cable and pipeline occupy, and increase difficulty of construction and cost.
How above-mentioned technical problem is solved, becomes problem urgently to be resolved.
Summary of the invention
The purpose of the present invention is to provide one kind can cascade GPS signal distribution system so that GPS amplification distribution system tool
Standby configurable cascaded topology, and the monitoring function to Topology connection is cascaded, so that the system only needs one group of external GPS day
Line can flexibly support the application demand from ten multichannels to tens tunnels, reduce subsequent upgrade dilatation and access to outside computer room
Newly-built and reconstruction investment, bring flexibly and the solution of high performance-price ratio.
In order to achieve the above object, The technical solution adopted by the invention is as follows:
One kind can cascade GPS signal distribution system, comprising: at least two signal distribution units, system can cascade N grades
(N is greater than 1 natural number), signal distribution unit are equipped with antenna input port, junior's output port and GPS output port,
The antenna input port for connecting with outdoor GPS antenna or upper level signal distribution unit, use by junior's output port
It is cascaded in next stage signal distribution unit, the GPS output port with the GPS synchronization signal mouth of BBU for connecting；Cascade electricity
Cable, one end of subtending cable are mounted in the lower end output port of the signal distribution unit, and the other end installs next stage signal
In the antenna input port of allocation unit.
Further, the signal distribution unit includes amplifier and power splitter, and the amplifier is believed for method GPS
Number, the power splitter is divided equally for GPS signal after amplifying to BBU and next stage signal distribution unit.
Further, the antenna input port of the signal distribution unit is equipped with DC feedback and current monitoring circuit and leads to
It crosses MCU and obtains and handle port monitoring information.
Further, the lower end output port of the signal distribution unit is again provided with current feed and current monitoring circuit
And port monitoring information is obtained and handled by MCU.
Further, the quantity for junior's output port that the signal distribution unit is equipped with is at least one.
Further, the quantity for the GPS output port that the signal distribution unit is equipped with is similarly at least one.
Compared with the prior art, the advantages of the present invention are as follows:
Present solution provides one kind can cascade GPS signal distribution system so that GPS amplification distribution system have it is configurable
Cascaded topology, and cascade is to the monitoring function of Topology connection, so that the system only needs one group of external GPS antenna
It is flexible to support from ten multichannels to the application demand on tens tunnels, reduce subsequent upgrade dilatation to accessed outside computer room newly-built and
Reconstruction investment brings flexible and high performance-price ratio solution.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is existing GPS amplification distribution system block diagram；
Fig. 2 is system block diagram of the invention；
Fig. 3 is signal distribution unit schematic diagram in the present invention；
Fig. 4 is the schematic diagram of cascade circuit of the present invention；
Fig. 5 is the system block diagram of a specific embodiment of the invention.
Specific embodiment
The preferred embodiment of the present invention is described in detail with reference to the accompanying drawing, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
Please refer to shown in Fig. 2-5, one kind can cascade GPS signal distribution system, system is by multilevel signal allocation unit group
At each signal distribution unit can access external GPS aerial signal by 1 road antenna input port, then be divided into 8 accesses
Output, wherein 1 tunnel branch is junior's output port, other 7 tunnels are GPS output port.
GPS radio signal in space is received by being erected at the GPS antenna of roof, is then transferred to installation by feeder line
The antenna input port of 1 grade of signal distribution unit of the GPS signal distribution system in computer room, signal from antenna input port into
Enter signal distribution unit, amplifies and pass through 1 point of 8 power splitter function point by radio frequency amplifier, please refer to shown in Fig. 3, signal distribution
To 7 GPS output ports and 1 junior's output port, signal is connected with BBU from GPS output port by feeder line respectively, is
Signal needed for BBU provides GPS time service service.
It please refers to shown in Fig. 5,1 road signal is exported by junior's output port of 1 grade of signal distribution unit, by cascade electricity
Cable enters the antenna input port of 2 grades of signal distribution units, and signal enters 2 grades of signal distribution units from antenna input port, leads to
It crosses radio frequency amplifier and amplifies and pass through 1 point of 8 splitter function point, signal is assigned to 7 GPS output ports and 1 junior's output end
Mouthful, signal is connected with BBU from GPS output port by feeder line respectively, signal needed for providing GPS time service service for BBU.
When junior's output port disconnection of 1 grade of signal distribution unit or the antenna input port of 2 grades of allocation units disconnect
When, 1 grade of Modulation recognition unit or 2 grades of Modulation recognition units pass through the feed current monitoring function of port, it can be found that connecting different
Often and abnormality is passed to the MCU of said units, MCU can give by modes such as alarm terminal, indicator light, telecommunications
Installation and maintenance personnel.
Here it is the working principle of the invention, while to belong to this field special for the content being not described in detail in this specification
The prior art well known to industry technical staff.
Although the embodiments of the invention are described in conjunction with the attached drawings, but patent owner can be in appended claims
Within the scope of make various deformations or amendments, such as signal distribution unit is equipped with the quantity of junior's output port and is replaced,
It as long as it does not exceed the scope of protection described in the claims to the invention, all should be within protection scope of the present invention.
Claims (6)
1. one kind can cascade GPS signal distribution system characterized by comprising
At least two signal distribution units, signal distribution unit are equipped with antenna input port, junior's output port and GPS output
Port, the antenna input port with outdoor GPS antenna or upper level signal distribution unit for connecting, junior's output end
Mouth with next stage signal distribution unit for cascading, and the GPS output port with the GPS synchronization signal mouth of BBU for connecting；
Subtending cable, one end of subtending cable are mounted in the lower end output port of the signal distribution unit, other end installation
In the antenna input port of next stage signal distribution unit.
2. according to claim 1 can cascade GPS signal distribution system, it is characterised in that: the signal distribution unit
Including amplifier and power splitter, the amplifier is used for method GPS signal, and the power splitter is equal for GPS signal after amplifying
Divide to BBU and next stage signal distribution unit.
3. according to claim 1 or 2 can cascade GPS signal distribution system, it is characterised in that: the signal distribution is single
The antenna input port of member is equipped with DC feedback and current monitoring circuit and port monitoring information is obtained and handled by MCU.
4. according to claim 3 can cascade GPS signal distribution system, it is characterised in that: the signal distribution unit
Lower end output port be again provided with current feed and current monitoring circuit and by MCU obtain and handle port monitoring information.
5. according to claim 1 or 2 can cascade GPS signal distribution system, it is characterised in that: the signal distribution is single
The quantity for junior's output port that member is equipped with is at least one.
6. according to claim 1 or 2 can cascade GPS signal distribution system, it is characterised in that: the signal distribution is single
The quantity for the GPS output port that member is equipped with is similarly at least one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910622640.9A CN110456385A (en) | 2019-07-11 | 2019-07-11 | One kind can cascade GPS signal distribution system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910622640.9A CN110456385A (en) | 2019-07-11 | 2019-07-11 | One kind can cascade GPS signal distribution system |
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| CN110456385A true CN110456385A (en) | 2019-11-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112379587A (en) * | 2020-10-30 | 2021-02-19 | 中国石油天然气集团有限公司 | Ocean node time service system and time service method |
-
2019
- 2019-07-11 CN CN201910622640.9A patent/CN110456385A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112379587A (en) * | 2020-10-30 | 2021-02-19 | 中国石油天然气集团有限公司 | Ocean node time service system and time service method |
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Effective date of registration: 20200901 Address after: 510663 Room 501, building 3, no.768, Shenzhou Road, Huangpu District, Guangzhou City, Guangdong Province Applicant after: GUANGZHOU HANYUN INFORMATION TECHNOLOGY Co.,Ltd. Address before: 510663 workshop b603, No. 17, Xiangshan Road, Guangzhou high tech Industrial Development Zone, Guangdong Province Applicant before: GUANGZHOU JIEHUI INFORMATION TECHNOLOGY Co.,Ltd. |