CN207354287U - Bandwidth carrier automatization test system - Google Patents
Bandwidth carrier automatization test system Download PDFInfo
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- CN207354287U CN207354287U CN201721169443.9U CN201721169443U CN207354287U CN 207354287 U CN207354287 U CN 207354287U CN 201721169443 U CN201721169443 U CN 201721169443U CN 207354287 U CN207354287 U CN 207354287U
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Abstract
The utility model provides a kind of bandwidth carrier automatization test system.The system comprises control device and multiple R-T units.The multiple R-T unit is connected by shielded cable.The control device is communicated to connect with the multiple R-T unit respectively, wherein, whether the control device is powered on by the communication module that control is plugged on R-T unit, and automatic test of the pad value realization to bandwidth carrier of the R-T unit powered on is adjusted by controlling.Thus, the quantity of the R-T unit powered on can flexibly be controlled, to meet the needs of different test events, it can realize the test of the automatic test and maximum anti-ageing decrement to relaying series, simplify measurement circuit, reduce and manually participate in part, test process automation, testing efficiency are high.
Description
Technical field
Bandwidth carrier testing field is the utility model is related to, in particular to a kind of bandwidth carrier automatic test system
System.
Background technology
With the large-scale application of intelligent electric energy meter and acquisition terminal, and requirement day of the people for power supply quality
Benefit improves, and the coverage rate of power information acquisition system is also higher and higher, and bandwidth carrier test is that power information acquisition system is led to
Important step in letter detection.
In the prior art, different test event in being tested for bandwidth carrier, it is necessary to using more set test devices into
Row test, the testing cost of input are higher.
Also, most of test events of bandwidth carrier excessively rely on artificial participation, it can not realize that continuous and automatic is surveyed
Examination, the degree of automation is not high, and testing efficiency is relatively low.
Utility model content
In order to overcome above-mentioned deficiency of the prior art, technical problem to be solved in the utility model is to provide a kind of width
Band carrier wave automatization test system, it can realize the test of the automatic test and maximum anti-ageing decrement to relaying series, letter
Change measurement circuit, reduced and manually participate in part, test process automation, testing efficiency height.
The utility model provides a kind of bandwidth carrier automatization test system, and the system comprises control device and multiple receipts
Transmitting apparatus；
The multiple R-T unit is connected by shielded cable；
The control device is communicated to connect with the multiple R-T unit respectively, wherein, the control device passes through control
Whether the communication module being plugged on R-T unit powers on, and the pad value realization of the R-T unit powered on is adjusted by controlling
To the automatic test of bandwidth carrier.
In the utility model preferred embodiment, the R-T unit includes main R-T unit and multiple from R-T unit,
The communication module includes routing module and carrier module, wherein, the R-T unit for inserting routing module is main R-T unit, is inserted
The R-T unit for filling carrier module is from R-T unit.
In the utility model preferred embodiment, the R-T unit includes：Main control unit and signal attenuation unit；
The signal attenuation unit includes the different adjustable attenuation module of multiple pad values；
The main control unit is connected with the signal attenuation unit communication, and the main control unit is by controlling the signal to decline
Subtract the break-make of the adjustable attenuation module of differential declines value in unit, realize the control adjustment to pad value.
In the utility model preferred embodiment, each adjustable attenuation module includes：Attenuator circuit and described for adjusting
The controlling switch of attenuator circuit break-make, wherein, the pad value of the corresponding attenuator circuit of each adjustable attenuation module is different, the master
Control unit changes the break-make of the attenuator circuit by adjusting the controlling switch, realizes the control adjustment to pad value.
In the utility model preferred embodiment, the R-T unit further includes：For inserting the communication mould of communication module
Block interface, the communication module interface are connected with the main control unit and signal attenuation unit respectively；
The signal attenuation unit further includes controlling bus, the main control unit by control the controlling bus export or
Output control signal is not to adjust the break-make of multiple adjustable attenuation modules.
In the utility model preferred embodiment, the controlling switch of the adjustable attenuation module includes：Movable contact, it is normally closed touch
Point and normally opened contact, wherein：
The communication module interface is connected with the movable contact, the signal input part of the attenuator circuit with it is described it is normally closed touch
Point connection, the signal output part of the attenuator circuit are connected with the movable contact of the normally opened contact and next adjustable attenuation module；
When the controlling bus indicates that the controlling switch is failure to actuate or the controlling bus does not indicate, the control
Switch corresponding adjustable attenuation module and be in connected state, at this time, the movable contact is contacted with the normally-closed contact, the decay
Circuit access communications circuit；
When the controlling bus indicates controlling switch action, at the corresponding adjustable attenuation module of the controlling switch
In off-state, at this time, the movable contact disconnects the contact with the normally-closed contact, and the movable contact connects with the normally opened contact
Touch, the attenuator circuit not access communications circuit.
In the utility model preferred embodiment, the R-T unit further includes：First on-line communication unit and for for
The power supply unit of the R-T unit power supply；
The R-T unit is communicated to connect by the first on-line communication unit and the control device；
The main control unit of the R-T unit is connected with the first on-line communication unit, wherein, what the control device was sent
Control instruction is transferred to the main control unit by the first on-line communication unit, so that the main control unit refers to according to control
The break-make by controlling the adjustable attenuation module of differential declines value in the signal attenuation unit is made, realizes the control to pad value
Adjustment；
The main control unit is also connected with power supply unit, to control the power supply unit to work.
In the utility model preferred embodiment, the main control unit, power supply unit, the first on-line communication unit, communication
Module interface is arranged in a shielded box, and the signal attenuation unit is arranged in another shielded box, the circuit of two shielded boxes
Connected by shielding line, each adjustable attenuation module of the signal attenuation unit is respectively arranged in independent shielding case.
In the utility model preferred embodiment, the communication module interface includes：Light current interface, forceful electric power interface and power supply
Switch；
Light current contact pin of the light current interface respectively with the main control unit and communication module is connected, the forceful electric power interface point
Be not connected with AC power, signal attenuation unit and communication module forceful electric power contact pin, the power switch respectively with power supply unit, master
The power pin connection of unit and communication module is controlled, wherein, it is controllable to be plugged in institute by controlling the break-make of the power switch
Whether powering on for the communication module on communication module interface stated.
In the utility model preferred embodiment, the quantity that the adjustable attenuation module is set is 7,7 adjustable attenuations
Module is sequentially connected between the communication module interface and next R-T unit, wherein, the 7th adjustable attenuation module declines
The signal output part on powered down road is connected with normally opened contact and next R-T unit；
The pad value of 7 adjustable attenuation modules is 1dB, 2dB, 4dB, 8dB, 16dB, 32dB and 64dB.
In terms of existing technologies, the utility model has the advantages that：
The utility model provides a kind of bandwidth carrier automatization test system.The system comprises control device and multiple receipts
Transmitting apparatus.The multiple R-T unit is connected by shielded cable.The control device leads to the multiple R-T unit respectively
Letter connection, wherein, whether the control device is powered on by the communication module that control is plugged on R-T unit, and passes through control
The pad value for the R-T unit that system adjustment powers on realizes the automatic test to bandwidth carrier.Thus, the transmitting-receiving powered on can be filled
The quantity put flexibly is controlled, and to meet the needs of different test events, can realize the automatic test to relaying series
And the test of maximum anti-ageing decrement, measurement circuit is simplified, reduces and manually participates in part, test process automation, test effect
Rate is high.
Brief description of the drawings
, below will be to required use in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the utility model, therefore should not be by
Regard the restriction to scope as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the block diagram of bandwidth carrier automatization test system provided by the utility model.
Fig. 2 is the block diagram of R-T unit provided by the utility model.
Fig. 3 is the block diagram of the signal attenuation unit 220 shown in Fig. 2 provided by the utility model.
Fig. 4 is the block diagram of the adjustable attenuation module 222 shown in Fig. 3 provided by the utility model.
Fig. 5 is the block diagram of control device provided by the utility model.
Icon：10- bandwidth carrier automatization test systems；100- control devices；110-CPU units；120- storage units；
130- the second on-line communication units；140- power supplys；150- display units；160- input units；170- output units；200- is received and dispatched
Device；210- main control units；220- signal attenuation units；222- adjustable attenuation modules；2220- attenuator circuits；2222- controls are opened
Close；2224- movable contacts；2226- normally-closed contacts；2228- normally opened contacts；224- controlling bus；230- communication module interfaces；240-
First on-line communication unit；250- power supply units.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, instead of all the embodiments.Usually here described in attached drawing and
The component of the utility model embodiment shown can be arranged and designed with a variety of configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiment of the utility model provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, those of ordinary skill in the art's all other embodiments obtained without creative efforts, all
Belong to the scope of the utility model protection.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
, it is necessary to which explanation is that term " first ", " second " etc. are only used for distinguishing description in the description of the utility model, and
It is not intended that instruction or hint relative importance.
In the description of the utility model, it is also necessary to which explanation, unless otherwise clearly defined and limited, term " are set
Put ", " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected,
Or it is integrally connected；Can mechanically connect or be electrically connected；It can be directly connected, intermediary can also be passed through
It is indirectly connected, can is the connection inside two elements.For the ordinary skill in the art, can be managed with concrete condition
Solve concrete meaning of the above-mentioned term in the utility model.
Below in conjunction with the accompanying drawings, elaborate to some embodiments of the utility model.In the case where there is no conflict, under
Feature in the embodiment and embodiment stated can be mutually combined.
The utility model provides a kind of bandwidth carrier automatization test system 10.Referring to Fig. 1, Fig. 1 is the utility model
The block diagram of the bandwidth carrier automatization test system 10 of offer.The system comprises control device 100 and multiple transmitting-receivings
Device 200.
In the present embodiment, whether the control device 100 is by controlling the communication module being plugged on R-T unit 200
Power on, and the pad value realization for the R-T unit 200 that communication module has powered on is adjusted to the automatic of bandwidth carrier by controlling
Change test.
In the present embodiment, the multiple R-T unit 200 is connected by shielded cable.Wherein, the multiple transmitting-receiving dress
Putting 200 quantity specifically set can be set (such as N number of) according to the actual requirements.The control device 100 respectively with it is described
Multiple R-T units 200 communicate to connect, wherein, the mode of communication includes：It is any one in the mode such as Ethernet, WIFI, RS485
Kind.
In the present embodiment, the R-T unit 200 includes a main R-T unit and multiple from R-T unit.It is described logical
Letter module includes routing module and carrier module, wherein, the R-T unit 200 for inserting routing module is main R-T unit, inserting
The R-T unit 200 of carrier module is from R-T unit.
In the present embodiment, the 1st R-T unit 200 inserting routing module being connected with the control device 100, as
The main R-T unit of bandwidth carrier automatization test system 10.Remaining N-1 R-T unit 200 inserts carrier module, as
The slave R-T unit of bandwidth carrier automatization test system 10.
Referring to Fig. 2, Fig. 2 is the block diagram of R-T unit 200 provided by the utility model.The R-T unit
200 include：Main control unit 210 and signal attenuation unit 220.
In the present embodiment, main control unit 210 is the control centre of R-T unit 200, is mainly used for identification, analysis and Control
The control instruction that device 100 issues, and control all parts in R-T unit 200 to perform corresponding behaviour according to control instruction
Make.
In the present embodiment, the main control unit 210 can be MCU units (micro-control unit, Microcontroller
Unit).MCU units are also known as one chip microcomputer (Single Chip Microcomputer) or microcontroller, are by center
The frequency and specification of processor (Central Process Unit, CPU) do appropriate reduction, and by memory (memory), count
The perimeter interface such as device (Timer), USB, A/D conversion, UART, PLC, DMA even LCD drive circuits are all incorporated into one chip
On, the computer of chip-scale is formed, can be that different combination control is done in different application scenarios.
Referring to Fig. 2, the R-T unit 200 further includes：First on-line communication unit 240 and for for the receipts
The power supply unit 250 that transmitting apparatus 200 is powered.The R-T unit 200 passes through the first on-line communication unit 240 and the control
Device 100 processed communicates to connect.
In the present embodiment, the main control unit 210 of the R-T unit 200 is connected with the first on-line communication unit 240.Institute
The control instruction for stating the transmission of control device 100 is transferred to the main control unit 210 by the first on-line communication unit 240,
So that the main control unit 210 controls the signal attenuation unit 220 to work according to control instruction.
In the present embodiment, the main control unit 210 is also connected with power supply unit 250, and the main control unit 210 controls institute
Power supply unit 250 is stated as all parts power supply in R-T unit 200.
Referring to Fig. 2, the R-T unit 200 further includes：For inserting the communication module interface of communication module
230, the communication module interface 230 is connected with the main control unit 210 and signal attenuation unit 220 respectively.
In the present embodiment, the R-T unit 200 passes through the communication module interface 230 and communication module communication link
Connect, by the way that the communication module is inserted on the communication module interface 230, with realize the R-T unit 200 with it is described
Communication between communication module.
In the present embodiment, the communication module interface 230 can be used for inserting routing module, single-phase carrier, Three Phase Carrier Based
Etc. communication module.
In the present embodiment, the communication module interface 230 includes：Light current interface, forceful electric power interface and power switch.It is described
Light current contact pin of the light current interface respectively with the main control unit 210 and communication module is connected.The forceful electric power interface is respectively with exchanging
Power supply, signal attenuation unit 220 and the connection of communication module forceful electric power contact pin.The power switch respectively with power supply unit 250, master control
Unit 210 and the connection of the power pin of communication module.Wherein, it is controllable to be plugged in by controlling the break-make of the power switch
Whether communication module on the communication module interface 230 powers on.
It is appreciated that structure described in Fig. 2 is only to illustrate, R-T unit 200 may also include it is more more than shown in Fig. 2 or
Less component, or there is the configuration different from shown in Fig. 2.Each component shown in Fig. 2 can use hardware, software or its
Combination is realized.
The square frame that Fig. 3 and Fig. 4, Fig. 3 are referred to as the signal attenuation unit 220 shown in Fig. 2 provided by the utility model shows
It is intended to, Fig. 4 is the block diagram of the adjustable attenuation module 222 shown in Fig. 3 provided by the utility model.The signal attenuation list
Member 220 includes the different adjustable attenuation module 222 of multiple pad values.
In the present embodiment, the main control unit 210 is communicated to connect with the signal attenuation unit 220, the master control list
Member 210 is realized to declining by controlling the break-make of the adjustable attenuation module 222 of differential declines value in the signal attenuation unit 220
The control adjustment of depreciation.
In the present embodiment, each adjustable attenuation module 222 includes：Attenuator circuit 2220 and for adjust it is described decay electricity
The controlling switch 2222 of 2220 break-make of road.Wherein, the pad value of the corresponding attenuator circuit 2220 of each adjustable attenuation module 222 is not
Together, the main control unit 210 changes the break-make of the attenuator circuit 2220, realization pair by adjusting the controlling switch 2222
The control adjustment of pad value.
In the present embodiment, the signal attenuation unit 220 further includes controlling bus 224, and the main control unit 210 passes through
Control the controlling bus 224 to export or output control signal to adjust the break-make of multiple adjustable attenuation modules 222, is not realized pair
The control adjustment of multiple 222 pad values of adjustable attenuation module.
In the present embodiment, the controlling switch 2222 of the adjustable attenuation module 222 may be, but not limited to, Z-type relay
Device.The controlling switch 2222 includes：Movable contact 2224, normally-closed contact 2226 and normally opened contact 2228.
In the present embodiment, the main control unit 210 is by controlling the controlling switch 2222 of each adjustable attenuation module 222
Switching electricity changes the on off operating mode of the normally-closed contact 2226 of each controlling switch 2222 and normally opened contact 2228, with to decay
Value is controlled adjustment.
Referring to Fig. 4, the 2222 specific operation in each contact of controlling switch is illustrated below.
In the present embodiment, the communication module interface 230 is connected with the movable contact 2224, the attenuator circuit 2220
Signal input part be connected with the normally-closed contact 2226.The signal output part of the attenuator circuit 2220 and the normally opened contact
2228, and the movable contact 2224 of the next adjustable attenuation module 222 adjacent with this adjustable attenuation module 222 is connected.
In the present embodiment, when the controlling bus 224 indicates that the controlling switch 2222 is failure to actuate or the control is total
When line 224 does not indicate, the corresponding adjustable attenuation module 222 of the controlling switch 2222 is in connected state, at this time, described dynamic
Contact 2224 is contacted with the normally-closed contact 2226, the 2220 access communications circuit of attenuator circuit.
In the present embodiment, when the controlling bus 224 indicates that the controlling switch 2222 acts, the controlling switch
2222 corresponding adjustable attenuation modules 222 are off, and at this time, the movable contact 2224 disconnects and the normally-closed contact
2226 contact, the movable contact 2224 are contacted with the normally opened contact 2228, the attenuator circuit 2220 not access communications line
Road.
Referring to Fig. 3 and Fig. 4, the quantity that the adjustable attenuation module 222 is set may be, but not limited to, 7.7
A adjustable attenuation module 222 can be sequentially connected to according to the incremental order of pad value the communication module interface 230 with it is next
Between R-T unit 200.Wherein, the signal output part and normally opened contact of the attenuator circuit 2220 of the 7th adjustable attenuation module 222
2228 and next R-T unit 200 connect.
In the present embodiment, the pad value of 7 adjustable attenuation modules 222 for 1dB, 2dB, 4dB, 8dB, 16dB,
32dB and 64dB.Wherein, the pad value that the signal attenuation unit 220 decays the broadband carrier signal of input is 7
The attenuation accumulated value of adjustable attenuation module 222.Thus, the 210 control signal attenuation units 220 of main control unit carry broadband
The pad value adjusting range that ripple signal is decayed is：0~127dB.
In the present embodiment, the operation principle of the signal attenuation unit 220 is as follows：When the control of adjustable attenuation module 222
When level on the control line of system switch 2222 is not high, 2222 attonity of controlling switch, corresponding attenuator circuit 2220
By access communications circuit, decay to broadband carrier signal.When the level on the control line of controlling switch 2222 is high, control
The movable contact 2224 of system switch 2222 disconnects the contact with normally-closed contact 2226, then is contacted with normally opened contact 2228, corresponding
The not access communications circuit of attenuator circuit 2220, to the undamped effect of broadband carrier signal.
In the present embodiment, the pad value of the signal attenuation unit 220 and each 2222 corresponding control of controlling switch
Level relationship on line is：
Wherein, A represents the pad value of whole signal attenuation unit 220, and i is adjustable attenuation in the signal attenuation unit 220
The numbering of the numbering of module 222, i.e. controlling switch 2222.S (i)=0 represents that the control line level of controlling switch 2222 is height；S
(i)=1 represent, the control line level of controlling switch 2222 is not height.
In the present embodiment, the main control unit 210, power supply unit 250, the first on-line communication unit 240, communication module
Interface 230 is arranged in a shielded box, and the signal attenuation unit 220 is arranged in another shielded box, the electricity of two shielded boxes
Road is connected by shielding line, and each adjustable attenuation module 222 of the signal attenuation unit 220 is respectively arranged at independent shielding
In cover.
In the present embodiment, the dotted line frame in the dotted line frame expression shielded box in Fig. 2, Fig. 3 and Fig. 4 represents shielding case.
In the present embodiment, by setting shielded box or shielding case, first, the interference of external noise can be reduced；Secondly, can
Avoid broadband carrier signal from crossing over adjustable attenuation module 222 because of space radiation, cause decay inaccurate.
Referring to Fig. 5, Fig. 5 is the block diagram of control device 100 provided by the utility model.Above-mentioned bandwidth carrier is certainly
The control device 100 that dynamicization test system 10 includes can use the structure that Fig. 5 is provided.
In the present embodiment, the control device 100 may be, but not limited to,：Computer, PC, portable computer, industry control
Machine etc..
In the present embodiment, the control device 100 includes CPU element 110, storage unit 120, the second on-line communication list
Member 130, power supply 140, display unit 150, input unit 160 and output unit 170.The CPU element 110 is single with storage respectively
First 120, second on-line communication unit 130, power supply 140, display unit 150, input unit 160 and output unit 170 connect, with
Processing is controlled to these units.
In the present embodiment, the CPU element 110 is used for the presentation of information to control device 100, input information identifies,
Data store and the communication between control device 100 and R-T unit 200 is controlled.The storage unit 120 is used for will
The necessary information and data produced in carrier communication test is preserved.The control device 100 is online logical by described second
Letter unit 130 communicates with R-T unit 200, wherein, the second on-line communication unit 130 is communicatively coupled specific
Way of realization is identical with above-mentioned first on-line communication unit 240.The power supply 140 is used for device 100 in order to control and provides electric energy
Source.The display unit 150 is used for the working status to the information in carrier communication test process, data and control device 100
Shown etc. parameter.The input unit 160 is used to enable test man to set, read bandwidth carrier automatization test system
10 parameter, information and the equipment into system assigns control instruction.The output unit 170 is used for test data and note
Record export control device 100.
It is appreciated that structure described in Fig. 5 is only to illustrate, control device 100 may also include it is more more than shown in Fig. 5 or
Less component, or there is the configuration different from shown in Fig. 5.Each component shown in Fig. 5 can use hardware, software or its
Combination is realized.
In the present embodiment, the quantity of the R-T unit 200 powered in Fig. 1 is arranged to 2, i.e., communication module accesses
The R-T unit 200 of communication line work is only comprising 1 main R-T unit and 1 from R-T unit.The bandwidth carrier is automatic
Change the carry out antidamping test that test system 10 can be to bandwidth carrier, obtain maximum anti-ageing decrement L.
After obtaining maximum anti-ageing decrement L, maximum relaying series test can be carried out automatically.The control device 100 controls
The quantity of the communication module of the R-T unit 200 of access communications circuit, and the main transmitting-receiving that control adjustment communication module has powered on
Device and the pad value M from R-T unit, you can maximum relaying series test is carried out, obtains maximum relaying series, should with analysis
The relay capabilities of bandwidth carrier.Wherein, L/2 ＜ M ＜ L, L are maximum anti-ageing decrement, and L can be tested to obtain, also may be used according to antidamping
Input setting is carried out by operator according to demand.
In the present embodiment, bandwidth carrier automatization test system 10 provided by the utility model can be realized to Relay
The test of several automatic test and maximum anti-ageing decrements, without manual intervention.
In conclusion the utility model provides a kind of bandwidth carrier automatization test system.The system comprises control to fill
Put and multiple R-T units.The multiple R-T unit is connected by shielded cable.The control device respectively with it is the multiple
R-T unit communicates to connect, wherein, whether the control device is powered on by the communication module that control is plugged on R-T unit,
And automatic test of the pad value realization to bandwidth carrier of the R-T unit powered on is adjusted by controlling.
Thus, the quantity of the R-T unit powered on can flexibly be controlled, to meet the needs of different test events, energy
The test of enough automatic tests realized to relaying series and maximum anti-ageing decrement, simplifies measurement circuit, reduces artificial ginseng
It is high with part, test process automation, testing efficiency.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the present invention, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on, should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of bandwidth carrier automatization test system, it is characterised in that the system comprises control device and multiple transmitting-receiving dresses
Put；
The multiple R-T unit is connected by shielded cable；
The control device is communicated to connect with the multiple R-T unit respectively, wherein, the control device is inserted by controlling
Whether powered in the communication module on R-T unit, and the pad value realization of the R-T unit powered on is adjusted to width by controlling
Automatic test with carrier-current relaying series.
2. system according to claim 1, it is characterised in that the R-T unit includes main R-T unit and multiple from receipts
Transmitting apparatus, the communication module include routing module and carrier module, wherein, received and dispatched based on the R-T unit for inserting routing module
Device, the R-T unit for inserting carrier module are from R-T unit.
3. system according to claim 1 or 2, it is characterised in that the R-T unit includes：Main control unit and signal decline
Subtract unit；
The signal attenuation unit includes the different adjustable attenuation module of multiple pad values；
The main control unit is connected with the signal attenuation unit communication, and the main control unit is by controlling the signal attenuation list
The break-make of the adjustable attenuation module of differential declines value in member, realizes the control adjustment to pad value.
4. system according to claim 3, it is characterised in that each adjustable attenuation module includes：Attenuator circuit and it is used for
The controlling switch of the attenuator circuit break-make is adjusted, wherein, the pad value of the corresponding attenuator circuit of each adjustable attenuation module is not
Together, the main control unit changes the break-make of the attenuator circuit by adjusting the controlling switch, realizes the control to pad value
System adjustment.
5. system according to claim 4, it is characterised in that the R-T unit further includes：For inserting communication module
Communication module interface, the communication module interface is connected with the main control unit and signal attenuation unit respectively；
The signal attenuation unit further includes controlling bus, and the main control unit is by controlling the controlling bus output or not defeated
Go out control signal to adjust the break-make of multiple adjustable attenuation modules.
6. system according to claim 5, it is characterised in that the controlling switch of the adjustable attenuation module includes：It is dynamic to touch
Point, normally-closed contact and normally opened contact, wherein：
The communication module interface is connected with the movable contact, and the signal input part of the attenuator circuit connects with the normally-closed contact
Connect, the signal output part of the attenuator circuit is connected with the movable contact of the normally opened contact and next adjustable attenuation module；
When the controlling bus indicates that the controlling switch is failure to actuate or the controlling bus does not indicate, the controlling switch
Corresponding adjustable attenuation module is in connected state, and at this time, the movable contact is contacted with the normally-closed contact, the attenuator circuit
Access communications circuit；
When the controlling bus indicates controlling switch action, the corresponding adjustable attenuation module of the controlling switch is in disconnected
Open state, at this time, the movable contact disconnect the contact with the normally-closed contact, and the movable contact is contacted with the normally opened contact,
The attenuator circuit not access communications circuit.
7. system according to claim 5, it is characterised in that the R-T unit further includes：First on-line communication unit
And the power supply unit for powering for the R-T unit；
The R-T unit is communicated to connect by the first on-line communication unit and the control device；
The main control unit of the R-T unit is connected with the first on-line communication unit, wherein, the control that the control device is sent
Instruction is transferred to the main control unit by the first on-line communication unit, so that the main control unit leads to according to control instruction
The break-make for controlling the adjustable attenuation module of differential declines value in the signal attenuation unit is crossed, realizes the control tune to pad value
It is whole；
The main control unit is also connected with power supply unit, to control the power supply unit to work.
8. system according to claim 7, it is characterised in that the main control unit, power supply unit, the first on-line communication list
Member, communication module interface are arranged in a shielded box, and the signal attenuation unit is arranged in another shielded box, two shielded boxes
Circuit connected by shielding line, each adjustable attenuation module of the signal attenuation unit is respectively arranged at independent shielding case
It is interior.
9. system according to claim 7, it is characterised in that the communication module interface includes：Light current interface, forceful electric power connect
Mouth and power switch；
Light current contact pin of the light current interface respectively with the main control unit and communication module is connected, the forceful electric power interface respectively with
AC power, signal attenuation unit and communication module forceful electric power contact pin connection, the power switch respectively with power supply unit, master control list
The connection of the power pin of member and communication module, wherein, it is controllable to be plugged in described lead to by controlling the break-make of the power switch
Whether the communication module on letter module interface powers on.
10. system according to claim 6, it is characterised in that the quantity that the adjustable attenuation module is set is 7,7
Adjustable attenuation module is sequentially connected between the communication module interface and next R-T unit, wherein, the 7th adjustable attenuation
The signal output part of the attenuator circuit of module is connected with normally opened contact and next R-T unit；
The pad value of 7 adjustable attenuation modules is 1dB, 2dB, 4dB, 8dB, 16dB, 32dB and 64dB.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721169443.9U CN207354287U (en) | 2017-09-08 | 2017-09-08 | Bandwidth carrier automatization test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721169443.9U CN207354287U (en) | 2017-09-08 | 2017-09-08 | Bandwidth carrier automatization test system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107346994A (en) * | 2017-09-08 | 2017-11-14 | 武汉盛帆电子股份有限公司 | Bandwidth carrier automatization test system and relaying series method of testing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107346994A (en) * | 2017-09-08 | 2017-11-14 | 武汉盛帆电子股份有限公司 | Bandwidth carrier automatization test system and relaying series method of testing |
| CN107346994B (en) * | 2017-09-08 | 2023-09-08 | 武汉盛帆电子股份有限公司 | Broadband carrier automatic test system and relay level number test method |
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