CN103974271B - Communication shielding harness and method based on the control of indoor distribution link - Google Patents
Communication shielding harness and method based on the control of indoor distribution link Download PDFInfo
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- CN103974271B CN103974271B CN201310044730.7A CN201310044730A CN103974271B CN 103974271 B CN103974271 B CN 103974271B CN 201310044730 A CN201310044730 A CN 201310044730A CN 103974271 B CN103974271 B CN 103974271B
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a kind of communication shielding harness and method based on the control of indoor distribution link, is related to communication shielding field.The system includes：Bypass monitoring unit, coupler and room divided antenna；Bypass monitoring unit is connected with coupler by RF cable, and bypass monitoring unit is connected with room divided antenna；Bypass monitoring unit is used for the indoor distribution signal that bypass coupling device is transmitted to room divided antenna, target room area is set to turn into signal coverage hole or the weak area of signal covering, and when target room area, which turns into signal, covers weak area, micropower interference signal is exported to room divided antenna, room divided antenna carries out micropower baffle by micropower interference signal to target room area.The present invention can avoid the interference effect to nontarget area when communicating and shielding, and substantially reduce the radiation injury to human body, reduce interference unit energy consumption, be advantageous to environmentally friendly social construction.
Description
Technical field
The present invention relates to communication shielding field, more particularly to a kind of communication shielding harness based on the control of indoor distribution link
And method.
Background technology
With the high speed development of mobile communications industry, the covering of movable signal has been deep into each angle during we live
Fall so that we can carry out information interchange with the external world unblockedly whenever and wherever possible.But meanwhile using high-tech means of communication
Various business, the political crimes implemented emerge in an endless stream, and this causes communication security to become particularly important, particularly in the important machine of country
Pass, enterprises and institutions and colleges and universities etc. are, it is necessary to which the occasion for carrying out secrecy meeting or communication shielding is more and more.
Communication jammer is commonly used and carries out communication shielding.Communication jammer launches interference signal, according to dry with frequency
Principle is disturbed, if the interference signal that mobile terminal receives is more than its base station signal received, then mobile terminal just can not
Proper communication.Fig. 1 shows the principle schematic of the typical indoor communications shielding harness of prior art one.As shown in figure 1, big portion
Place has laid indoor distributed system in locellus（Hereinafter referred to as room subsystem）, such as room divided antenna etc., so indoor nothing
Line signal is universal stronger.General communication interference unit can not be disturbed effectively these strong signaling points, it is necessary to increases jamming power and increasing
Add interference unit quantity.Problems be present in this communication Shielding plan：
1st, can not centralized Control, commissioning complexity：Because indoor place has laid many interference units, craft can only be passed through
Mode carries out commissioning to interference unit one by one, can not Centralized Monitoring, therefore complex operation, process are very long；
2nd, the proper communication of nontarget area is influenceed：The use of excessive power or excessive number interference unit, non-mesh can be influenceed
The proper communication in region, or even interference base station are marked, influences the proper communication of whole cell；
3rd, environmentally friendly social construction theory is run counter to：High-power RF interference signal has larger radiation injury to human body, influences people
Body health, and interference unit energy consumption is larger, is unfavorable for environmental protection.
The content of the invention
A technical problem to be solved of the embodiment of the present invention is：Traditional communication shielding harness is solved due to using power
The excessive and excessive interference unit of quantity, influence the proper communication of nontarget area, human body radiation is injured larger and energy consumption compared with
The problems such as big.
Another technical problem to be solved of the embodiment of the present invention is：It is right one by one that solution traditional communication shielding harness needs
Multiple interference units carry out commissionings, commissioning is complicated, can not Centralized Monitoring the problem of.
The one side of the embodiment of the present invention provides a kind of communication shielding harness based on the control of indoor distribution link, bag
Include：Bypass monitoring unit, coupler and room divided antenna；Bypass monitoring unit is connected with coupler by RF cable, bypass prison
Control unit is connected with room divided antenna；Bypass monitoring unit is used for the indoor distribution signal that bypass coupling device is transmitted to room divided antenna, makes
Target room area turns into signal coverage hole or signal covers weak area, and covers weak area when target room area turns into signal
When, micropower interference signal is exported to room divided antenna, room divided antenna is carried out by micropower interference signal to target room area
Micropower baffle.
The system also includes：Positioned at the local control unit of target room area, or/and, Lou Nei network management centers；It is local
Control unit or Lou Nei network management centers are used to send RF control signal to bypass monitoring unit;Bypass monitoring unit is used for basis
RF control signal bypasses to indoor distribution signal.
The bypass monitoring unit includes bypass module, high-power matched load and micropower interference source；Bypass module is used
In being bypassed according to RF control signal to indoor distribution signal；When RF control signal is bypass condition, bypass module
In RF switch be operated in bypass mode, the indoor distribution signal for being input to RF switch is bypassed to high-power matched load
On；When control signal is micropower disturbance state, the RF switch in bypass module is operated in micropower jamming pattern, input
Indoor distribution signal to RF switch is bypassed on high-power matched load, while is introduced micro- caused by micropower interference source
Powered interferer, micropower interference signal is output to room divided antenna.
The bypass monitoring unit also includes：Standing wave monitoring modular；Standing wave monitoring modular is used to pass through two-way broadband radio frequency
Coupler, the power of forward signal and reverse signal on RF cable is detected before bypass module in real time, according to forward signal and anti-
Standing-wave ratio is calculated to the power meter of signal, when threshold value of the standing-wave ratio higher than setting, exports the alarm signal of bypass module failure.
The bypass monitoring unit also includes：Signal shunt module, or/and, network monitoring module；Signal shunt module is used
In receiving and demodulating the RF control signal of local control unit transmission, RF control signal is sent to bypass module；Network
Monitoring module is used for the RF control signal for receiving and demodulating the transmission of Lou Nei network management centers, and RF control signal is sent into bypass
Module.
Signal shunt module is additionally operable to receive the direct current signal that radio frequency control signal is sent together, and passes through wave filter
The separation of real-time performance RF control signal and direct current signal, the direct current signal isolated are standing wave monitoring modular, bypass module
Powered with micropower interference source.
The local control unit includes：Power module, Local Control Module and feed combining module；Power module is used for
Alternating current is converted into direct current, is Local Control Module, feed combining module and bypass monitoring unit power supply；Local control mould
Block is used for the operation according to user, produces brewed RF control signal, and is output to feed combining module；Feed combining
Module is used for direct current and RF control signal combining by filter network, and is output to bypass monitoring unit.
Lou Nei network management centers are additionally operable to send RF control signal to multichannel bypass monitoring unit；Each bypass monitoring unit
For being bypassed according to RF control signal to indoor distribution signal.
The embodiment of the present invention another aspect provides it is a kind of based on indoor distribution link control communication screen method,
Including：Bypass monitoring unit is set between coupler and room divided antenna, and bypass monitoring unit passes through RF cable with coupler
Connection；Bypass monitoring unit and receive RF control signal；Bypass monitoring unit is transmitted to according to RF control signal bypass coupling device
The indoor distribution signal of room divided antenna, target room area is turned into signal coverage hole or the weak area of signal covering, and work as mesh
When marking room area turns into signal covering weak area, bypass monitoring unit exports micropower interference signal to room divided antenna, and day is divided in room
Line carries out micropower baffle by micropower interference signal to target room area.
The bypass monitoring unit is transmitted to the indoor distribution signal of room divided antenna according to RF control signal bypass coupling device
Including：When RF control signal is bypass condition, indoor distribution signal is switched to high-power matching and born by bypass monitoring unit
In load；When control signal is micropower disturbance state, indoor distribution signal is switched to high-power matching by bypass monitoring unit
In load, while micropower interference signal is introduced, micropower interference signal is output to room divided antenna.
The present invention sets bypass monitoring unit between coupler and room divided antenna, and bypass monitoring unit controls according to radio frequency
The indoor distribution signal that signal is transmitted to room divided antenna to coupler bypasses, and target room area is turned into signal coverage hole
Or signal covers weak area, when target room area turns into signal coverage hole, communication can be achieved without any interference signal
Shielding, when target room area, which turns into signal, covers weak area, only pass through the interference signal of power very little（Such as milliwatt）Just
Communication shielding can be realized, so as to avoid the interference effect to nontarget area, substantially reduces the radiation injury to human body, is reduced
Interference unit energy consumption, be advantageous to environmentally friendly social construction.In addition, communication shielding harness can be into multichannel room by Lou Nei network management centers
Distribution link sends bypass control signal, so as to realize the centralized control and management to indoor distributed system, enormously simplify out
Logical debugging efforts.
By referring to the drawings to the present invention exemplary embodiment detailed description, further feature of the invention and its
Advantage will be made apparent from.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 shows the principle schematic of the typical indoor communications shielding harness of prior art one.
Fig. 2 shows the structural representation of the communication shielding harness one embodiment of the present invention based on the control of indoor distribution link
Figure.
Fig. 3 shows structural representation of the present invention based on another embodiment of the communication shielding harness of indoor distribution link control
Figure.
Fig. 4 shows the structural representation of local control unit one embodiment in present invention communication shielding harness.
Fig. 5 shows the structural representation of bypass monitoring unit one embodiment in present invention communication shielding harness.
Fig. 6 shows the schematic flow sheet of communication screen method one embodiment that this hair is controlled based on indoor distribution link.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Below
Description only actually at least one exemplary embodiment is illustrative, is never used as to the present invention and its application or makes
Any restrictions.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of protection of the invention.
Unless specifically stated otherwise, the part and positioned opposite, the digital table of step otherwise illustrated in these embodiments
Do not limited the scope of the invention up to formula and numerical value.
Simultaneously, it should be appreciated that for the ease of description, the size of the various pieces shown in accompanying drawing is not according to reality
Proportionate relationship draw.
It may be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable
In the case of, the technology, method and apparatus should be considered as authorizing part for specification.
In shown here and discussion all examples, any occurrence should be construed as merely exemplary, without
It is as limitation.Therefore, the other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent accompanying drawing in individual accompanying drawing.
Fig. 2 shows the structural representation of the communication shielding harness one embodiment of the present invention based on the control of indoor distribution link
Figure.
As shown in Fig. 2 the communication shielding harness of the embodiment includes：Day is divided in bypass monitoring unit 10, coupler 20 and room
Line 30.Bypass monitoring unit 10 is connected with coupler 20 by RF cable, and bypass monitoring unit 10 is connected with room divided antenna 30.
Bypass monitoring unit 10 is used for the indoor distribution signal that bypass coupling device 20 is transmitted to room divided antenna 30, turns into target room area
Signal coverage hole or signal cover weak area；When target room area turns into signal coverage hole, without any interference signal
Communication shielding can be achieved；When target room area, which turns into signal, covers weak area, monitoring unit 10 is bypassed to room divided antenna 30
Micropower interference signal is exported, room divided antenna 30 carries out micropower orientation screen by micropower interference signal to target room area
Cover.
Fig. 3 shows structural representation of the present invention based on another embodiment of the communication shielding harness of indoor distribution link control
Figure.
As shown in figure 3, the communication shielding harness of the embodiment also includes：Positioned at the local control unit of target room area
40, or/and, Lou Nei network management centers 50.Local control unit 40 or Lou Nei network management centers 50 are used to send out to bypass monitoring unit 10
RF control signal is sent, and bypass monitoring unit 10 is used to indoor distribution signal is bypassed according to RF control signal.That is,
Communication shielding harness can only include local control unit 40, and the local bypass for bypassing monitoring unit 10 is controlled with realizing；It is logical
Letter shielding harness can only include Lou Nei network management centers 50, and the remote shunt for bypassing monitoring unit 10 is controlled with realizing；Communication
Shielding harness can include local control unit 40 and Lou Nei network management centers 50 simultaneously, to realize the sheet to bypassing monitoring unit 10
Ground Bypass Control and remote shunt control.Lou Nei network management centers 50 are additionally operable to send radio frequency control to multichannel bypass monitoring unit 10
Signal, each monitoring unit 10 that bypasses are used to bypass indoor distribution signal according to RF control signal, enormously simplify
Commissioning works.
As shown in figure 3, the embodiment illustrates by taking two-way indoor distribution link as an example.Indoor distribution information source connects one
Power splitter A, power splitter A connections coupler 20, because the present embodiment has two-way indoor distribution link, therefore power splitter A connections
Two couplers 20, it will be understood by those skilled in the art that when there is N roads indoor distribution link, power splitter A can connect N number of coupling
Clutch 20.For the indoor distribution link of small conference room, coupler 20 connects bypass monitoring unit 10 by RF cable, other
Road monitoring unit 10 connects the room divided antenna 30 of small conference room, and room divided antenna 30 is such as can be ceiling mount antenna, small-sized
Local control unit 40 can also be set in meeting room, for carrying out local bypass control to bypass monitoring unit 10.For big
The indoor distribution link of type meeting room, coupler 20 connect bypass monitoring unit 10 by RF cable, bypass monitoring unit 10
A power splitter B can be connected, power splitter B can connect the room divided antenna 30 of multiple large conference rooms, in convention room
Local control unit 40 can also be set, for carrying out Bypass Control to bypass monitoring unit 10.In addition, in each meeting room institute
Building in a Ge Lounei network management centers 50 can be set, for each long-range side for being unified of bypass monitoring unit 10
Road controls, while can handle the information that each bypass monitoring unit 10 reports, such as warning information, status information etc., system
During operation irregularity, facilitate fault location and investigation.
Fig. 4 shows the structural representation of local control unit one embodiment in present invention communication shielding harness.
As shown in figure 4, local control unit 40 includes：Power module 401, Local Control Module 402 and feed combining mould
Block 403.401 external external communication of power module power, for alternating current to be converted into direct current, be Local Control Module 402,
Feed combining module 403 and bypass monitoring unit 10 are powered.Local Control Module 402 is used for the local operation according to user, production
Raw brewed RF control signal（That is, local bypass control signal）, and it is output to feed combining module 403.Feed closes
The external bypass monitoring unit 10 of road module 403, for by filter network by direct current and RF control signal combining, and
It is output to bypass monitoring unit 10.
Fig. 5 shows the structural representation of bypass monitoring unit one embodiment in present invention communication shielding harness.
As shown in figure 5, bypass monitoring unit 10 includes：Bypass module 101, high-power matched load 102 and micropower are done
Disturb source 103.The local control of bypass module 101 or remote control, bypass monitoring unit 10 are also included in order to realize：Signal point
Road module 104, or/and, network monitoring module 105.In order to realize the malfunction monitoring to bypass module 101, monitoring unit is bypassed
10 also include：Standing wave monitoring modular 106.The function of modules is introduced separately below.
Bypass module 101 is used for according to RF control signal to indoor distribution signal（Indoor distribution signal abbreviation room point letter
Number）Bypassed, wherein, according to the difference of Bypass Control mode, RF control signal has two sources, and one is to come from signal
Shunt module 104, it is connected with local control unit 40, realizes local bypass control, and another is to come from network monitoring module
105, it is connected with Lou Nei network management centers 50, realizes remote shunt control.Specifically, RF control signal include normal condition,
Bypass condition and micropower disturbance state.When RF control signal is normal condition, the RF switch work in bypass module 101
Make normally to be output to room divided antenna in normal mode, indoor distribution signal, i.e., shielded without communication.When RF control signal is
During bypass condition, the RF switch in bypass module 101 is operated in bypass mode, is input to the indoor distribution signal of RF switch
It is bypassed on high-power matched load 102；When control signal is micropower disturbance state, the radio frequency in bypass module 101
Switch is bypassed to high-power matched load in micropower jamming pattern, the indoor distribution signal for being input to RF switch
On 102, while micropower interference signal caused by micropower interference source 103 is introduced, by the micropower interference signal room of being output to point
Antenna 30.
High-power matched load 102 is responsible for the power of the absorption chamber sub-signal under bypass mode and micropower jamming pattern.
Because signal energy is all absorbed by high-power matched load 102, so certain heat can be produced, it is necessary to ensure have during installation
Certain heat-dissipating distance.
Micropower interference source 103 exports the micropower interference signals of various communications bands to bypass module 101.Its work is former
Reason is identical with currently used communication jammer, and the interfering signal power simply exported is extremely low, generally only needs milliwatt（mW）Level
Not, for example, 20mW can be exported, therefore the volume of micropower interference source 103 can be made to very little.
Signal shunt module 104 is used to receive the direct current signal that radio frequency control signal is sent together, and passes through filtering
The separation of device real-time performance RF control signal and direct current signal, the direct current signal isolated is bypass module 101, micropower is done
Source 103 is disturbed, and standing wave monitoring modular 106 is powered, and the RF control signal isolated is demodulated, demodulated radio frequency control
Signal processed is sent to bypass module 101, to carry out Bypass Control.
Network monitoring module 105 is used for the RF control signal for receiving and demodulating the transmission of Lou Nei network management centers 50, by radio frequency
Control signal is sent to bypass module 101 and carries out Bypass Control to room sub-signal.Meanwhile network monitoring module 105 is also received and stayed
The alarm signal that ripple monitoring modular 106 or micropower interference source 103 are sent, is output to Lou Nei network management centers 50 after modulation.Network
Monitoring modular 105 can use Lou Nei network management centers POE（Power Over Ethernet, POE）Power supply for exchange.
Standing wave monitoring modular 106 is used to pass through two-way broadband RF coupler, detects radio frequency line before bypass module 101 in real time
The power of forward signal and reverse signal on cable, standing-wave ratio is calculated according to the power meter of forward signal and reverse signal, due to side
During 101 failure of module of road, feeder line mismatch, normal signal meeting strong reflection, feeder line standing-wave ratio can increase, therefore can set a threshold
Value, when threshold value of the standing-wave ratio higher than setting, export the alarm signal of the failure of bypass module 101.
Above-described embodiment, bypass monitoring unit is set between coupler and room divided antenna, and bypass monitoring unit is according to penetrating
The indoor distribution signal that frequency control signal is transmitted to room divided antenna to coupler bypasses, and target room area is covered as signal
Lid blind area or signal cover weak area, can be real without any interference signal when target room area turns into signal coverage hole
Now communication shielding, when target room area, which turns into signal, covers weak area, only pass through the interference signal of power very little（Such as milliwatt
Level）Can realizes communication shielding, so as to avoid the interference effect to nontarget area, substantially reduces the radiational injury to human body
Evil, interference unit energy consumption is reduced, is advantageous to environmentally friendly social construction.In addition, communication shielding harness can be to by Lou Nei network management centers
Multichannel indoor distribution link sends bypass control signal, so as to realize the centralized control and management to indoor distributed system, significantly
Simplify commissioning work.
Fig. 6 shows the schematic flow sheet of communication screen method one embodiment that this hair is controlled based on indoor distribution link.
As shown in fig. 6, the communication screen method of the embodiment comprises the following steps：
Step S601, bypass monitoring unit is set between coupler and room divided antenna, bypasses monitoring unit and coupler
Connected by RF cable.
Step S602, bypass monitoring unit receive RF control signal.
Step S603, bypass monitoring unit are transmitted to the indoor distribution of room divided antenna according to RF control signal bypass coupling device
Signal, target room area is set to turn into signal coverage hole or the weak area of signal covering, and when target room area turns into signal
When covering weak area, bypass monitoring unit exports micropower interference signal to room divided antenna, and room divided antenna is disturbed by micropower to be believed
Number to target room area carry out micropower baffle.
In step S602, bypass monitoring unit, which receives RF control signal, two sources, and one from local control
Unit, local bypass control is realized, one comes from Lou Nei network management centers, realizes remote shunt control.Lou Nei network management centers can be with
RF control signal is sent to multiple bypass monitoring units, so as to realize unified remote shunt control to each bypass monitoring unit
System.
In step S603, bypass monitoring unit specifically includes according to distribution signal in RF control signal bypass chamber：
When RF control signal is bypass condition, indoor distribution signal is switched to high-power matching by bypass monitoring unit
In load.
When control signal is micropower disturbance state, indoor distribution signal is switched to high-power by bypass monitoring unit
With in load, while micropower interference signal is introduced, micropower interference signal is output to room divided antenna.
When RF control signal is normal condition, indoor distribution signal is normally output to room point day by bypass monitoring unit
Line, i.e., shielded without communication.
Above-described embodiment, bypass monitoring unit is set between coupler and room divided antenna, and bypass monitoring unit is according to penetrating
The indoor distribution signal that frequency control signal is transmitted to room divided antenna to coupler bypasses, and target room area is covered as signal
Lid blind area or signal cover weak area, can be real without any interference signal when target room area turns into signal coverage hole
Now communication shielding, when target room area, which turns into signal, covers weak area, only pass through the interference signal of power very little（Such as milliwatt
Level）Can realizes communication shielding, so as to avoid the interference effect to nontarget area, substantially reduces the radiational injury to human body
Evil, interference unit energy consumption is reduced, is advantageous to environmentally friendly social construction.In addition, communication shielding harness can be to by Lou Nei network management centers
Multichannel indoor distribution link sends bypass control signal, so as to realize the centralized control and management to indoor distributed system, significantly
Simplify commissioning work.
One of ordinary skill in the art will appreciate that hardware can be passed through by realizing all or part of step of above-described embodiment
To complete, by program the hardware of correlation can also be instructed to complete, described program can be stored in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only storage, disk or CD etc..
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (10)
1. a kind of communication shielding harness based on the control of indoor distribution link, including：Day is divided in bypass monitoring unit, coupler and room
Line；
Bypass monitoring unit be connected with coupler by RF cable, bypass monitoring unit be connected with room divided antenna, coupler and
Indoor distribution information source connects；
Bypass monitoring unit is used for the indoor distribution signal that distribution source in bypass chamber is transmitted to room divided antenna by coupler, makes mesh
Marking room area turns into signal coverage hole or the weak area of signal covering, and covers weak area when target room area turns into signal
When, micropower interference signal is exported to room divided antenna, room divided antenna is carried out by micropower interference signal to target room area
Micropower baffle.
2. system according to claim 1, it is characterised in that the system also includes：Positioned at the sheet of target room area
Ground control unit, or/and, Lou Nei network management centers；
Local control unit or Lou Nei network management centers are used to send RF control signal to bypass monitoring unit；Bypass monitoring unit
For being bypassed according to RF control signal to indoor distribution signal.
3. system according to claim 1 or 2, it is characterised in that the bypass monitoring unit includes bypass module, big work(
Rate matched load and micropower interference source；
Bypass module is used to bypass indoor distribution signal according to RF control signal；When RF control signal is bypass shape
During state, the RF switch in bypass module is operated in bypass mode, and the indoor distribution signal for being input to RF switch is bypassed to
On high-power matched load；When control signal is micropower disturbance state, the RF switch in bypass module is operated in micro- work(
Rate jamming pattern, the indoor distribution signal for being input to RF switch is bypassed on high-power matched load, while introduces micro- work(
Micropower interference signal caused by rate interference source, micropower interference signal is output to room divided antenna.
4. system according to claim 3, it is characterised in that the bypass monitoring unit also includes：Standing wave monitoring modular；
Standing wave monitoring modular is used to pass through two-way broadband RF coupler, preceding to letter on RF cable before detection bypass module in real time
Number and reverse signal power, standing-wave ratio is calculated according to the power meter of forward signal and reverse signal, when standing-wave ratio higher than setting
Threshold value when, export bypass module failure alarm signal.
5. system according to claim 3, it is characterised in that the bypass monitoring unit also includes：Signal shunt module,
Or/and network monitoring module；
Signal shunt module is used to receiving and demodulating the RF control signal that local control unit is sent, and RF control signal is sent out
Give bypass module；
Network monitoring module is used for the RF control signal for receiving and demodulating the transmission of Lou Nei network management centers, and RF control signal is sent out
Give bypass module.
6. system according to claim 4, it is characterised in that
Signal shunt module is additionally operable to receive the direct current signal that radio frequency control signal is sent together, and passes through filter network
The separation of RF control signal and direct current signal is realized, the direct current signal isolated is standing wave monitoring modular, bypass module and micro-
Power disturbance source powers.
7. system according to claim 2, it is characterised in that the local control unit includes：Power module, local control
Molding block and feed combining module；
Power module is used to alternating current being converted to direct current, is that Local Control Module, feed combining module and bypass monitoring are single
Member power supply；
Local Control Module is used for the operation according to user, produces brewed RF control signal, and is output to feed and closes
Road module；
Feed combining module to be used for direct current and RF control signal combining by filter network, and be output to bypass prison
Control unit.
8. system according to claim 2, it is characterised in that
Lou Nei network management centers are additionally operable to send RF control signal to multichannel bypass monitoring unit；Each bypass monitoring unit is used for
Indoor distribution signal is bypassed according to RF control signal.
9. a kind of communication screen method based on the control of indoor distribution link, including：
Bypass monitoring unit is set between coupler and room divided antenna, and bypass monitoring unit is connected with coupler by RF cable
Connect；
Bypass monitoring unit and receive RF control signal；
Bypass monitoring unit is transmitted to the interior of room divided antenna according to distribution source in RF control signal bypass chamber by coupler
Distribution signal, target room area is set to turn into signal coverage hole or the weak area of signal covering, and when target room area turns into
When signal covers weak area, bypass monitoring unit exports micropower interference signal to room divided antenna, and room divided antenna is done by micropower
Disturb signal and micropower baffle is carried out to target room area.
10. according to the method for claim 9, it is characterised in that it is described bypass monitoring unit according to RF control signal by
The indoor distribution signal that road indoor distribution information source is transmitted to room divided antenna by coupler includes：
When RF control signal is bypass condition, indoor distribution signal is switched to high-power matched load by bypass monitoring unit
On；
When control signal is micropower disturbance state, indoor distribution signal is switched to high-power matching and born by bypass monitoring unit
In load, while micropower interference signal is introduced, micropower interference signal is output to room divided antenna.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310044730.7A CN103974271B (en) | 2013-02-05 | 2013-02-05 | Communication shielding harness and method based on the control of indoor distribution link |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310044730.7A CN103974271B (en) | 2013-02-05 | 2013-02-05 | Communication shielding harness and method based on the control of indoor distribution link |
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| CN103974271A CN103974271A (en) | 2014-08-06 |
| CN103974271B true CN103974271B (en) | 2017-12-26 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104301022A (en) * | 2014-10-28 | 2015-01-21 | 成都锐新科技有限公司 | Microwave communication device based on UHF frequency bands |
| CN105451256B (en) * | 2015-11-11 | 2018-11-30 | 中国联合网络通信集团有限公司 | Monitor the method and device of room subsystem |
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