CN208299797U - A kind of detection device and system of multi-system access platform leakage cable - Google Patents
A kind of detection device and system of multi-system access platform leakage cable Download PDFInfo
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- CN208299797U CN208299797U CN201820624491.0U CN201820624491U CN208299797U CN 208299797 U CN208299797 U CN 208299797U CN 201820624491 U CN201820624491 U CN 201820624491U CN 208299797 U CN208299797 U CN 208299797U
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Abstract
The utility model discloses the detection device and system of a kind of multi-system access platform leakage cable, the detection device of multi-system access platform leakage cable includes: master data processing module and N number of from data processing module；N≥2；It is communicated to connect from data processing module with the master data processing module described in each.The utility model realizes the installation situation of remote real time monitoring multi-system access platform leakage cable, detects without interrupting communication and carrying cumbersome apparatus to leakage cable.
Description
Technical field
The utility model belongs to leakage cable loss detection field, and in particular to a kind of detection of multi-system access platform leakage cable is set
Standby and system.
Background technique
Leak abbreviation (Leaky Coaxial Cable) that cable is leakage coaxial cable usually referred to as leaky cable or leakage again
Cable is let out, structure and common coaxial cable are almost the same, by inner conductor, dielectric and are provided with the outer of periodical slot and lead
Body three parts composition.Pass through slot outwardly radiated electromagnetic wave while electromagnetic wave longitudinally transmits in leaking cable；Extraneous electromagnetism
Field can also be sensed inside leakage cable by slot and be transmitted to receiving end.The prior art tests multisystem platform (POI, Point
Of Interface) leakage cable installation it is whether correct and when having detected whether breaking phenomena, one of method is to set when all
After standby and leakage cable is installed and introduces base station signal, the artificial signal using professional test equipment along leakage cable line test
Intensity.Another method is to introduce the line loss of signal source and frequency spectrograph test leakage cable.But existing measuring technology has following
Defect: when needing the insertion loss of the test leakage cable when POI leakage cable equipment uses to whether there is problem, it is necessary to manually carry stupid
Heavy equipment, and need to disconnect the input and output port connecting test equipment of POI leakage cable equipment, cause communication disruption.
Utility model content
The purpose of this utility model is to provide the detection device and system of a kind of multi-system access platform leakage cable, realizes remote
Journey real-time monitoring multi-system access platform leaks the installation situation of cable, examines without interrupting communication and carrying cumbersome apparatus to leakage cable
It surveys.
In order to solve the above technical problems, the detection that the utility model embodiment provides a kind of multi-system access platform leakage cable is set
It is standby, comprising: master data processing module and N number of from data processing module；N≥2；It is each described from data processing module with it is described
The communication connection of master data processing module；
The master data processing module includes primary processor, main signal transceiver, main detection signal generator and main power
Detector；It is each described from data processing module include: filter amplifier, the first secondary power detector, auxiliary processor, sub signal
Transceiver, combiner, secondary detection signal generator and the second secondary power detector；
One end of the detection signal generator is connect with the primary processor, and the other end and the main power detector connect
It connects；One end of the main power detector is connect for sending detection signal with radio frequency line, and the other end and the primary processor connect
It connects；The primary processor is also connect with the main signal transceiver；
One end of the combiner connect the transmitting-receiving for signal with radio frequency line, and the other end and the filter amplifier connect
It connects；One end of described first secondary power detector is connect with the filter amplifier, and the other end is connect with the auxiliary processor, institute
The one end for stating sub signal transceiver is connect with the auxiliary processor, and the other end is connect with the combiner；The secondary detection signal
One end of generator is connect with the auxiliary processor, and the other end is connect with the described second secondary power detector；Described second secondary function
One end of rate detector is connect with the combiner, and the other end is connect with the auxiliary processor.
Further, the master data processing module further includes being connected to the main detection signal generator and the main function
Main radio frequency attenuator between rate detector；
Each described from data processing module further includes being connected to the secondary detection signal generator and the second secondary function
Secondary radio frequency attenuator between rate detector.
Further, the filter amplifier includes SAW filter and radio frequency amplifier；
One end of the SAW filter is connect with the combiner, and the other end is connect with the radio frequency amplifier；It is described
Radio frequency amplifier is also connect with the described first secondary power detector.
Preferably, the detection signal generator is phaselocked loop.
It is further, each described to be communicated to connect from data processing module with the master data processing module, specifically:
Each main letter for passing through the combiner and the master data processing module from the sub signal transceiver of data processing module
The connection of number transceiver communications.
Further, the master data processing module further includes display screen；The display screen is connect with the primary processor.
Preferably, the display screen includes cathode-ray tube display, plasma display or liquid crystal display.
Preferably, the signal transceiver is modem.
Further, the master data processing module further includes main directional coupler；It is each described from data processing module
It further include secondary directional coupler；
One end of the main directional coupler is connect with the output end of proximal end multi-system access platform, the main directional couple
The other end of device is connect with the input terminal of leakage cable, and the coupling port of the main directional coupler passes through the radio frequency line and the master
Power detector connection；
One end of the pair directional coupler is connected with the output end of a corresponding distal end multi-system access platform, described
The other end of secondary directional coupler is connect with the output end of leakage cable, and the coupling port of the pair directional coupler passes through the radio frequency
Line is connect with the combiner.
Correspondingly, the utility model also provides a kind of detection system of multi-system access platform leakage cable, comprising: multisystem connects
Enter detection device, proximal end multi-system access platform, N number of distal end multi-system access platform and the leakage cable of platform leakage cable；
The input terminal and multisystem access of the output end of the proximal end multi-system access platform and the leakage cable are flat
Platform leaks the master data processing module connection of the detection device of cable；The output end of each distal end multi-system access platform with it is described
The output end connection of cable is leaked, the output end of N number of distal end multi-system access platform also leaks cable with the multi-system access platform
The N number of of detection device map connection one by one from data processing module.
Compared with the prior art, a kind of multi-system access platform leakage detection device of cable of the utility model and having for system
Beneficial effect is: since primary processor is connect with main detection signal generator in master data processing module, primary processor control master
It detects signal generator and sends detection signal to main power detector；Main power detector detects the initial power of detection signal
Value, and the detection signal is delivered to leakage cable by radio frequency line；Primary processor obtains the initial power by main power detector
Rate value；Signal is detected by radio frequency line into the combiner from data processing module, the detection signal received is through filter and amplification
After device filter and amplification, actual power value is obtained by the first secondary power detector, auxiliary processor controls sub signal transceiver will be practical
Performance number is sent to primary processor by combiner；Due to it is each from data processing module with master data processing module communication link
Connect, primary processor successively controlled according further to multiple sequences from data processing module it is each from data processing module so that each
The secondary detection signal generator transmission detection signal of auxiliary processor control is transferred to next from number to leakage cable from data processing module
According to processing module, and the first of the detection signal of the transmission obtained from the second secondary power detector of data processing module will be passed through
Beginning performance number is sent to primary processor；Primary processor successively judges the damage of every section of leakage cable according to actual power value and initial gain value
Consume situation.Realization accurately detects every section of leakage cable, and when the loss situation of either segment leakage cable is serious, primary processor is received by main signal
Hair device reports, so that the installation situation of remote real time monitoring leakage cable is realized, without interrupting communication and carrying cumbersome apparatus to leakage cable
It is detected.
Detailed description of the invention
Fig. 1 is that the structure of one embodiment of the detection device of multi-system access platform leakage cable provided by the utility model is shown
It is intended to；
Fig. 2 is the structure of another embodiment of the detection device of multi-system access platform leakage cable provided by the utility model
Schematic diagram；
Fig. 3 is the structural representation of the embodiment of the detection system of multi-system access platform leakage cable provided by the utility model
Figure.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
It is one embodiment of the detection device of multi-system access platform leakage cable provided by the utility model referring to Fig. 1
Structural schematic diagram, the detection device which leaks cable includes: master data processing module 10 and N number of from data processing
Module 20；N≥2；It is communicated to connect from data processing module 20 with the master data processing module 10 described in each；
The master data processing module includes primary processor 101, main signal transceiver 102, main detection signal generator 103
With main power detector 104；It is each described from data processing module include: the secondary power detector of filter amplifier 201, first
202, auxiliary processor 203, sub signal transceiver 204, combiner 205, secondary detection signal generator 206 and the second secondary power detection
Device 207；
One end of the detection signal generator 103 is connect with the primary processor 101, and the other end and the main power are examined
Device 104 is surveyed to connect；One end of the main power detector 104 is connect for sending detection signal, the other end and institute with radio frequency line
State the connection of primary processor 101；The primary processor 101 is also connect with the main signal transceiver 102；
One end of the combiner 205 connect the transmitting-receiving for signal, the other end and the filter amplifier with radio frequency line
201 connections；One end of described first secondary power detector 202 is connect with the filter amplifier 201, the other end and the vice division chief
It manages device 203 to connect, one end of the sub signal transceiver 204 is connect with the auxiliary processor 203, the other end and the combiner
205 connections；One end of the secondary detection signal generator 206 is connect with the auxiliary processor 203, the other end and second pair
Power detector 207 connects；One end of described second secondary power detector 207 is connect with the combiner 205, the other end and institute
State the connection of auxiliary processor 203.
It should be noted that radio frequency line described in the utility model embodiment is RF coaxial line, wire structure mainly divides
For conductor, insulator, shielded layer and outer quilt；RF coaxial line impedence generally has 50 Ω and 75 Ω, transmits for signal, such as mobile phone
Coaxial line just refers to that, used in interior of mobile phone, for receiving a bit of line of wifi signal, insulation is used Teflon material with outer
Material.The power detector receives data processing module and is amplified by what radio frequency line inputted by the SAW filter and radio frequency
The radiofrequency signal of device filter and amplification, and export the component of voltage corresponding with the power of the radiofrequency signal received.It is described
Processor is preferably CPU i.e. central processing unit, mainly includes arithmetic unit (ALU, Arithmetic and Logic Unit) and control
The big component of device (CU, Control Unit) two processed；In addition, further including several registers and cache memory and realizing it
Between the bus of data, control and state that contacts.The combiner is power splitter, English name Power
Input signal energy all the way can be divided into the device of two-way or the equal or unequal energy of multiple-channel output by divider, or will be more
Signal energy synthesis in road exports all the way.The technical indicator of power splitter includes frequency range, the distribution for bearing power, main road to branch
Insertion loss, the isolation between tributary port, the voltage standing wave ratio of each port etc. between loss, input and output；Power splitter is pressed
Output is generally divided into one-to-two, one point three, one point four, one point eight, one point 16 etc.；Guarantee one between the output port of power splitter
Fixed isolation.
Specifically, due in master data processing module primary processor with detection signal generator connect, primary processor control
Main detection signal generator sends detection signal to main power detector；Main power detector detects the initial power of detection signal
Rate value, and the detection signal is delivered to leakage cable by radio frequency line；Primary processor is obtained described initial by main power detector
Performance number；Signal is detected by radio frequency line into the combiner from data processing module, the detection signal received is put through filtering
After big device filter and amplification, actual power value is obtained by the first secondary power detector, auxiliary processor controls sub signal transceiver will be real
Border performance number is sent to primary processor by combiner；It is communicated from data processing module with master data processing module due to each
Connection, primary processor successively controlled according further to multiple sequences from data processing module it is each from data processing module so that often
One from data processing module the secondary detection signal generator of auxiliary processor control send detection signal to leakage cable be transferred to it is next from
Data processing module, and the detection signal of the transmission obtained from the second secondary power detector of data processing module will be passed through
Initial gain value is sent to primary processor；Primary processor successively judges every section of leakage cable according to actual power value and initial gain value
Situation is lost.Realization accurately detects every section of leakage cable, and when the loss situation of either segment leakage cable is serious, primary processor passes through main signal
Transceiver reports, so that the installation situation of remote real time monitoring leakage cable is realized, without interrupting communication and carrying cumbersome apparatus to leakage
Cable is detected.
Further, the master data processing module 10 further includes being connected to the main detection signal generator 103 and institute
State the main radio frequency attenuator 105 between main power detector 104；
Each described from data processing module 20 further includes being connected to the secondary detection signal generator 206 and described second
Secondary radio frequency attenuator 208 between secondary power detector 207.
Further, the filter amplifier 201 includes SAW filter 211 and radio frequency amplifier 212；
One end of the SAW filter 211 is connect with the combiner 205, the other end and the radio frequency amplifier 212
Connection；The radio frequency amplifier 212 is also connect with the described first secondary power detector 202.
Preferably, the detection signal generator is phaselocked loop.
It should be noted that the main detection signal generator 103 of the master data processing module 10 is main phaselocked loop；It is each
The secondary signal generator 206 that detects from data processing module 20 is secondary phaselocked loop.
Radio frequency attenuator 106 described in the utility model embodiment is a kind of electronic component for providing and decaying, widely
Applied in electronic equipment, it is mainly used for: (1) in adjustment circuit signal size；(2) in comparative method for measuring circuit
In, it can be used to the pad value of direct-reading tested network；(3) improve impedance matching；Believe in the utility model embodiment in the detection
Number it is inserted into the radio frequency attenuator between generator 103 and first power detector 104, the variation of impedance can be buffered.
SAW filter 211 (abbreviation SAW) the main function principle is the piezoelectric property using piezoelectric material, utilizes input and output
The input signal of electric wave is converted into mechanical energy by energy converter (Transducer), after treatment, then converts mechanical energy into electricity
Signal promote the target of reception quality to reach the unnecessary signal of filtering and noise.SAW filter is widely used in
LC resonance circuit is substituted on various wireless telecommunication systems, television set, recorder and GPS receiver, is used for
Interstage coupling and filtering.Main function is noise to filter, simpler than traditional LC filter installation, volume is smaller.Institute
State the important component that radio frequency amplifier 212 (RFPA) is various wireless transmitters.In the front stage circuits of transmitter, modulation
RF signal power very little caused by oscillating circuit is needed by a series of amplification one buffer stage, interstage amplifier section, final stage
Power-amplifier stage after obtaining enough radio-frequency powers, can just be fed on antenna and radiate；In order to obtain sufficiently large penetrate
Frequency output power amplifies signal using radio-frequency power amplifier.Further, described from data processing module 20 and institute
The communication connection of master data processing module 10 is stated, specifically: the first signal transceiver 102 of the master data processing module 10 and institute
It states and is connected from the second signal transceiver communications 204 of data processing module 20.The phaselocked loop is a kind of typical feedback control
Circuit realizes output signal frequency using the frequency and phase of externally input reference signal control loop internal oscillation signal
Frequency input signal is automatically tracked, Closed loop track circuit is generally used for；It is to keep frequency relatively stable in radio transmitting
A kind of method mainly has VCO (voltage controlled oscillator) and PLLIC (phase-locked loop intergrated circuit), and voltage controlled oscillator provides a signal,
A part is as output, and another part makees phase bit comparison with local oscillation signal caused by PLLIC by dividing, for keep frequency
It is constant, it is desirable to which that phase difference does not change, if dephased variation, the voltage of the voltage output end of PLLIC occurs
Control VCO is removed in variation, until phase difference recovery, achievees the purpose that locking phase.
Further, each described to be communicated to connect from data processing module 20 with the master data processing module 10, tool
Body are as follows: the sub signal transceiver 204 from data processing module 20 by the combiner 205 and the master data from
The main signal transceiver 102 for managing module 10 communicates to connect.
Further, the master data processing module 10 further includes display screen 106；The display screen 106 and the main place
Device 101 is managed to connect.
Preferably, the display screen 106 includes cathode-ray tube display, plasma display or liquid crystal display.
Preferably, the signal transceiver is modem.
Further, the master data processing module 10 further includes main directional coupler 107；It is each described from data processing
Module 20 further includes secondary directional coupler 209；
One end of the main directional coupler 107 is connect with the output end of proximal end multi-system access platform, the main orientation
The other end of coupler 107 is connect with the input terminal of leakage cable, and the coupling port of the main directional coupler 107 passes through the radio frequency
Line is connect with the main power detector 104；
One end of the pair directional coupler 209 is connected with the output end of a corresponding distal end multi-system access platform,
The other end of the pair directional coupler 209 is connect with the output end of leakage cable, and the coupling port of the pair directional coupler 209 is logical
The radio frequency line is crossed to connect with the combiner 205.
It should be noted that directional coupler described in the utility model embodiment is a kind of general microwave/millimeter wave
Component, for the isolation, separation and mixing of signal, as the monitoring of power, source output power fixed ampllitude, signal source isolation, transmission and
The sweep check etc. of reflection；The key technical indexes is directional, standing-wave ratio, the degree of coupling, insertion loss.The modem,
For the abbreviation of Modulator (modulator) and Demodulator (demodulator), for the digital signal modulated to be transmitted to carrying
It is separated on wave or digital signal from carrier wave.It is defeated to be exactly converted into phone line by so-called modulation for digital signal
Analog signal；Analog signal, i.e., be converted into digital signal, be collectively referred to as modem by demodulation.The modem is being sent
End converts digital signals into analog signal by modulation, converts analog signals into digital letter again by demodulation in receiving end
Number.
As shown in Fig. 2, being another implementation of the detection device of multi-system access platform leakage cable provided by the utility model
The structural schematic diagram of example.
It should be noted that when the detection device of multi-system access platform leakage cable is to connecting multiple multisystems in tunnel
When the leakage cable of access platform (POI) is detected, the master data of the detection device of the multi-system access platform leakage cable handles mould
The primary processor 101 of block 10 is that main phaselocked loop is connect with the detection signal generator 103, and the primary processor 101 controls institute
It states detection signal generator 103 and generates initial detecting signal, the initial detecting signal is that transparent transmission frequency range removes in radiofrequency signal
It is any other than CDMA800 (825-835MHz, 870-880MHz) and GSM900 (885-915MHz, 930-960MHz) frequency range
The signal of frequency point.The initial detecting signal is sent to the radio frequency attenuator 106 and carried out by the detection signal generator 103
Signal decaying；Since the radio frequency attenuator 106 is connect with the main power detector 104, the radio frequency attenuator 105 will decline
Initial detecting signal after subtracting is delivered to the main power detector 104；After the main power detector 104 receives decaying
After the initial detecting signal, the corresponding voltage of the signal power is exported to the primary processor 101；And the main power
The initial detecting signal is delivered to the coupling port of the main directional coupler 107 by radio frequency line by detector 104, due to
One end of the main directional coupler 107 is connect with the output end of proximal end multi-system access platform, the main directional coupler 107
The other end with leakage cable input terminal connect so that the detection signal input leak cable transmitted；The primary processor 101 is logical
Cross the initial power (P1) that the voltage value that the main power detector 104 is sent obtains the initial detecting signal.
Since the initial detecting signal transmits in tunnel leakage cable, when the initial inspection that the master data processing module is sent
It surveys signal and is delivered in tunnel by leaking cable in tunnel along first distal end multi-system access platform of leakage cable extending direction setting
When；Since one end of first secondary directional coupler 209 from data processing module is corresponding and the distal end multi-system access platform
Output end connection, it is described pair directional coupler 209 the other end with leak cable output end connect, from data processing module 20
The initial detecting signal for leaking cable output is delivered to the combining by radio frequency line by the coupling port of secondary directional coupler 209
Device 205, the initial detecting signal is delivered to the SAW filter 211 and is filtered by the combiner 205 later, equally
The passband frequency range for presetting the SAW filter 211 is the output signal frequency point of the detection signal generator 103, i.e. institute
The stopband frequency range for stating SAW filter 211 includes CDMA800 (825-835MHz, 870-880MHz) and GSM900 (885-
915MHz, 930-960MHz) frequency range, so that entering by the filtered initial detecting signal of the SAW filter 211
The radio frequency amplifier 212 amplifies；Since the radio frequency amplifier 212 is connect with the described first secondary power detector 202,
The amplified initial detecting signal enters the described first secondary power detector 202；Described first secondary power detector 202 is defeated
The corresponding voltage of the initial detecting signal power to the auxiliary processor 203, the auxiliary processor 203 passes through the pair out
The voltage value that power detector 202 is sent obtains the letter of initial detecting described in this leakage cable from data processing module position
Number actual power (P2)；Since the sub signal transceiver 204 is connect with the auxiliary processor 203, the auxiliary processor 203
It controls the sub signal transceiver 204 and the coherent signal of the actual power (P2) of initial detecting signal is passed through into the combiner
205 be sent to leakage cable enter multi-system access platform after, into base station realize signal transmission；Initial detecting letter is sent to realize
Number actual power (P2) give the master data processing module 10.
Since the sub signal transceiver 204 communication is connected by the combiner 205 with the main signal transceiver 102
It connects, the primary processor 101 is connect with the main signal transceiver 102, the primary processor 101 of the master data processing module 10
Network communication is carried out by the main signal transceiver 102, receives being somebody's turn to do from data from the transmission of data processing module 20
The actual power (P2) of the corresponding initial detecting signal in processing module position.The primary processor 101 is according to described initial
The actual power (P2) and initial power (P1) for detecting signal, calculate the actual power and initial power of the initial detecting signal
Difference power, proximal end multi-system access platform and the first distal end multi-system access platform as in initial detecting signal process of passing through tunnel
Between leakage cable transmission after difference power.The primary processor 101 judges whether the difference power meets preset leakage cable road
Insertion loss requires to judge to leak whether cable has open circuit or abnormal phenomenon；When the primary processor of the master data processing module 10
101 judge the difference power do not meet it is described leakage cable insertion loss requirement when, the primary processor 101 is received by the main signal
The corresponding informance of the difference power and the tested cable that leaks hunting is reported to leakage cable monitoring platform by hair device 102, and controls the display screen 106
It shows the difference power and gives a warning.
When the primary processor 101 of the master data processing module 10 judges that the corresponding difference power of initial detecting signal meets institute
State leakage cable insertion loss requirement when, primary processor 101 according to multiple sequences from data processing module 20 from described in first from
Data processing module 20 starts to circuit sequentially control N from data processing module 20, so that N is secondary from data processing module 20
Processor 203 controls the i.e. secondary phaselocked loop 206 of secondary detection signal generator and generates N detection signal, and is sent by combiner 205
N detection signal to leakage cable is transferred to next from data processing module.Second secondary power detector of the N from data processing module
The initial gain value (PiN) of the N detection signal of 207 transmissions obtained is sent to primary processor 101.N+1 is from data processing
After module receives the N detection signal, the N should be obtained from the first secondary power detector 202 of data processing module
The actual power (PiiN) of signal is detected, auxiliary processor 203 controls the sub signal transceiver 204 for the reality of N detection signal
The coherent signal of border power (PiiN) by the combiner 205 be sent to leakage cable enter multi-system access platform after, into base
It stands and realizes signal transmission；To realize the actual power (P2) for sending initial detecting signal to the master data processing module 10
Primary processor 101.Primary processor 101 detects the actual power value (PiiN) and initial gain value of signal according to the N received
(PiN) difference power is calculated, and judge that the two difference powers for leaking cable from one section between data processing module of N and N+1 are
The no insertion loss requirement for meeting preset leakage cable road judges to leak whether cable has open circuit or abnormal phenomenon；When the master data
When the primary processor 101 of processing module 10 judges that the difference power does not meet the insertion loss requirement of the leakage cable, the main process task
Device 101 by the main signal transceiver 102 by N and N+1 the two from the corresponding informance of data processing module and should
Difference power reports to leakage cable monitoring platform, and controls the display screen 106 and show the difference power and give a warning loss situation.It is real
Every section of leakage cable is now accurately detected, when the loss situation of either segment leakage cable is serious, primary processor is reported by main signal transceiver,
So that device systems locating for leakage cable are either in working condition or preliminary debugging state, the multi-system access platform leakage
The detection device of cable is capable of the installation situation of remote real time monitoring leakage cable always, to realize the installation of remote real time monitoring leakage cable
Situation detects leakage cable without interrupting communication and carrying cumbersome apparatus.
As shown in figure 3, being the knot of the embodiment of the detection system of multi-system access platform leakage cable provided by the utility model
Structure schematic diagram.
The utility model embodiment also provides a kind of detection system of multi-system access platform leakage cable, comprising: multisystem connects
Enter detection device 301, proximal end multi-system access platform 302, N number of distal end multi-system access platform 303 and the leakage cable of platform leakage cable
304；
The input terminal and the multisystem of the output end of the proximal end multi-system access platform 302 and the leakage cable 304
The master data processing module 10 that access platform leaks the detection device 301 of cable connects；Each distal end multi-system access platform 303
Output end with it is described leakage cable 304 output end connect, the output end of N number of distal end multi-system access platform 303 also with institute
The N number of of detection device 301 for stating multi-system access platform leakage cable maps connection from data processing module 20 one by one.
It should be noted that the output end of the proximal end multi-system access platform 302 passes through the main directional coupler 107
It is connect with the input terminal of the leakage cable 304, the coupling port of the main directional coupler 107 passes through radio frequency line and the multisystem
The main power detector 104 that access platform leaks the detection device 301 of cable connects；Each distal end multi-system access platform 303
Output end connect by the secondary directional coupler 209 with the output end of the leakage cable 304, the secondary directional coupler 209
The combiner 205 of detection device 301 of coupling port and the multi-system access platform leakage cable connect.The leakage cable 304 is answered
It is the multistage leakage cable that more transparent transmission type multi-system access platforms (POI) are connected in tunnel with scene.The multi-system access platform
(Point of Interface, abbreviation POI) refers to specific between multisystem base station information source and indoor distributed system antenna feeder
Equipment is equivalent to the higher combiner of performance indicator, has and is combined multisystem base station information source and exports to indoor distribution
The antenna feeder equipment of system, while opposite direction exports the signal branch from antenna feeder equipment to the effect of each system information source.
In conclusion the detection device and system of a kind of multi-system access platform leakage cable provided by the utility model, due to
Primary processor is connect with detection signal generator in master data processing module, and primary processor controls main detection signal generator and sends
Signal is detected to main power detector；Main power detector detects the initial gain value of detection signal, and by the detection signal
Leakage cable is delivered to by radio frequency line；Primary processor obtains the initial gain value by main power detector；Detection signal passes through
Radio frequency line enters from the combiner of data processing module, and the detection signal received is after filter amplifier filter and amplification, by the
One secondary power detector obtains actual power value, and auxiliary processor controls sub signal transceiver and sends out actual power value by combiner
Give primary processor；Due to it is each from data processing module with master data processing module communicate to connect, primary processor according further to
Multiple sequences from data processing module successively control it is each from data processing module so that each secondary from data processing module
The secondary detection signal generator of processor control sends detection signal to leakage cable and is transferred to next from data processing module, and will pass through
The initial gain value of the detection signal from the transmission that the second of data processing module the secondary power detector obtains be sent to it is main from
Manage device；Primary processor successively judges the loss situation of every section of leakage cable according to actual power value and initial gain value.Realize accurate inspection
Every section of leakage cable is surveyed, when the loss situation of either segment leakage cable is serious, primary processor is reported by main signal transceiver, to realize
Remote real time monitoring leaks the installation situation of cable, detects without interrupting communication and carrying cumbersome apparatus to leakage cable.
The above is preferred embodiments of the present invention, it is noted that for the ordinary skill of the art
For personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these are improved and profit
Decorations are also considered as the protection scope of the utility model.
Claims (10)
1. a kind of detection device of multi-system access platform leakage cable characterized by comprising master data processing module and it is N number of from
Data processing module；N≥2；It is communicated to connect from data processing module with the master data processing module described in each；
The master data processing module includes primary processor, main signal transceiver, main detection signal generator and main power detection
Device；It is each described from data processing module include: filter amplifier, the first secondary power detector, auxiliary processor, sub signal transmitting-receiving
Device, combiner, secondary detection signal generator and the second secondary power detector；
One end of the detection signal generator is connect with the primary processor, and the other end is connect with the main power detector；
One end of the main power detector is connect for sending detection signal with radio frequency line, and the other end is connect with the primary processor；
The primary processor is also connect with the main signal transceiver；
One end of the combiner connect the transmitting-receiving for signal with radio frequency line, and the other end is connect with the filter amplifier；Institute
The one end for stating the first secondary power detector is connect with the filter amplifier, and the other end is connect with the auxiliary processor, the pair
One end of signal transceiver is connect with the auxiliary processor, and the other end is connect with the combiner；The pair detects signal
One end of device is connect with the auxiliary processor, and the other end is connect with the described second secondary power detector；Described second secondary power inspection
The one end for surveying device is connect with the combiner, and the other end is connect with the auxiliary processor.
2. a kind of detection device of multi-system access platform leakage cable as described in claim 1, which is characterized in that the master data
Processing module further includes the main radio frequency attenuator being connected between the main detection signal generator and the main power detector；
Each described from data processing module further includes being connected to the secondary detection signal generator and the second secondary power is examined
Survey the secondary radio frequency attenuator between device.
3. a kind of detection device of multi-system access platform leakage cable as described in claim 1, which is characterized in that the filtering is put
Big device includes SAW filter and radio frequency amplifier；
One end of the SAW filter is connect with the combiner, and the other end is connect with the radio frequency amplifier；The radio frequency
Amplifier is also connect with the described first secondary power detector.
4. a kind of detection device of multi-system access platform leakage cable as described in claim 1, which is characterized in that the detection letter
Number generator is phaselocked loop.
5. a kind of detection device of multi-system access platform leakage cable as described in claim 1, which is characterized in that it is each it is described from
Data processing module is communicated to connect with the master data processing module, specifically: each pair from data processing module
Signal transceiver is connect by the combiner with the main signal transceiver communications of the master data processing module.
6. a kind of detection device of multi-system access platform leakage cable as described in claim 1, which is characterized in that the master data
Processing module further includes display screen；The display screen is connect with the primary processor.
7. a kind of detection device of multi-system access platform leakage cable as claimed in claim 6, which is characterized in that the display screen
Including cathode-ray tube display, plasma display or liquid crystal display.
8. a kind of detection device of multi-system access platform leakage cable as described in claim 1, which is characterized in that the signal is received
Hair device is modem.
9. a kind of detection device of multi-system access platform leakage cable as described in claim 1, which is characterized in that the master data
Processing module further includes main directional coupler；It further include secondary directional coupler from data processing module described in each；
One end of the main directional coupler is connect with the output end of proximal end multi-system access platform, the main directional coupler
The other end is connect with the input terminal of leakage cable, and the coupling port of the main directional coupler passes through the radio frequency line and the main power
Detector connection；
One end of the pair directional coupler is connected with the output end of a corresponding distal end multi-system access platform, described secondary fixed
Connect to the other end of coupler with the output end of leakage cable, the coupling port of the pair directional coupler by the radio frequency line and
The combiner connection.
10. a kind of detection system of multi-system access platform leakage cable characterized by comprising multi-system access platform leaks cable
Detection device, proximal end multi-system access platform, N number of distal end multi-system access platform and leakage cable；
The detection device of the multi-system access platform leakage cable is the described in any item multi-system access platforms of claim 1 to 9
Leak the detection device of cable；
The input terminal and the multi-system access platform of the output end of the proximal end multi-system access platform and the leakage cable leak
The master data processing module of the detection device of cable connects；The output end and the leakage cable of each distal end multi-system access platform
Output end connection, the output end of N number of distal end multi-system access platform also with the multi-system access platform leakage cable inspection
The N number of of measurement equipment maps connection from data processing module one by one.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820624491.0U CN208299797U (en) | 2018-04-27 | 2018-04-27 | A kind of detection device and system of multi-system access platform leakage cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820624491.0U CN208299797U (en) | 2018-04-27 | 2018-04-27 | A kind of detection device and system of multi-system access platform leakage cable |
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| CN201820624491.0U Expired - Fee Related CN208299797U (en) | 2018-04-27 | 2018-04-27 | A kind of detection device and system of multi-system access platform leakage cable |
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| Country | Link |
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2018
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