CN106803778A - A kind of program control two work(point attenuator - Google Patents
A kind of program control two work(point attenuator Download PDFInfo
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- CN106803778A CN106803778A CN201510835786.3A CN201510835786A CN106803778A CN 106803778 A CN106803778 A CN 106803778A CN 201510835786 A CN201510835786 A CN 201510835786A CN 106803778 A CN106803778 A CN 106803778A
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Abstract
The embodiment of the invention discloses the program control two work(point attenuator of one kind, including：User manipulates unit, for receiving the arrange parameter of user input and sending to microcontroller the arrange parameter；Microcontroller, the decay of the first radio-frequency channel and the radiofrequency signal of the second radio-frequency channel for being connected in parallel according to arrange parameter control, the radiofrequency signal after the decay is coupled as being exported all the way and by the external radio frequency interface by two power splitters；And power switch control unit, for receiving the arrange parameter of the microcontroller transmission with the switch on and off of the program control base station power and power-on and power-off cycle.The present invention greatly simplifies the test environment composition of " switching of terminal wireless cell " and " base station repeatedly power-down rebooting ", and facilitates easy-to-use, can save commissioning cost of labor.
Description
Technical field
The present embodiments relate to the electronic component of the communications field, more particularly to a kind of program control two work(point decay
Device.
Background technology
In the test of mobile communication base station, exist a large amount of stability for being repeatedly used for verifying base station equipment with can
By the test of property, for example：The test of " switching of terminal wireless cell " and " base station repeatedly power-down rebooting ".
Wireless communication technology is relatively fixed the constraint of physical location because having broken away from cable to communication terminal so that move
Dynamic communication is possibly realized, and greatly facilitates the use of user.Just because of the physics of communication terminal near infinite
Move and the contradiction between single wireless cell limited covering scope in space so that terminal wireless cell switching flow
Frequently carry out, therefore communication equipment needs relative to this offer high reliability, high-quality service.
The test of " switching of terminal wireless cell " refer in different base station parameter configurations, mobile terminal not
Under scene with working condition and different channels feature, penetrated by controlling mobile terminal to receive different districts
The intensity of frequency signal, the trigger condition that constructing analog mobile terminal switches between different districts, to mobile terminal
The correctness of the flow such as synchronous acquisition, registration, data forwarding, success rate, user experience tested
Checking and evaluation.
" base station repeatedly power-down rebooting " refers to carry out power or power-down to testing base station according to the timing of regulation cycle
Whether operation, the startup of test checking base station is normal, each module and the friendship with other units in communication system
Whether interworking is unobstructed, is the important survey for recovering unfailing performance to the normal startup of base station and abnormality
Examination.
For the test of " switching of terminal wireless cell ", mainly using following scheme：Use programmable attenuator
Radio-frequency channel loss is configured respectively, test environment is connected and composed by cable and power splitter.
For the test of " base station repeatedly power-down rebooting ", mainly using following scheme：Use programmable power supply reality
Control system of switching on or off electricity existing to base station power or manually controlled by tester power supply open and
Close to reach the purpose of power down repeatedly.
However, existing programmable attenuator and programmable power supply are using underaction is simple, functional redundancy is complicated simultaneously
And it is expensive；Additionally, according to manual testing method when, test job can be caused to waste time and energy, people
Member's cost is excessive and test retest is relatively low, it is difficult to finds compared with small probability version defect, is deposited to version quality
Hidden danger has been stayed, larger defect has been there is also.
The content of the invention
The embodiment of the present invention provides a kind of program control two work(point attenuator, and greatly simplified " terminal wireless cell is cut
Change " and the test environment of " base station repeatedly power-down rebooting " constitute, and facilitate easy-to-use, commissioning people can be saved
Work cost.
A kind of program control two work(point attenuator is the embodiment of the invention provides, program control two work(point attenuator is used for
Mobile terminal is connected by external radio frequency interface, program control two work(point attenuator includes microcontroller, first
Radio-frequency channel, the second radio-frequency channel, two power splitters, power switch control unit and user manipulation unit, its
In：
The user manipulates unit, for receiving the arrange parameter of user input and sending the arrange parameter
To the microcontroller；
The microcontroller, for according to the arrange parameter the first radio-frequency channel for being connected in parallel of control and the
The decay of the radiofrequency signal of two radio-frequency channels, the radiofrequency signal after the decay is coupled as one by two power splitters
Road is simultaneously exported by the external radio frequency interface；And
The power switch control unit, its one end is connected by RJ45 interfaces with the microcontroller, separately
One end is connected with base station power, and the power switch control unit is used for the control sent according to the microcontroller
The switch on and off of the program control base station power of signal processed and power-on and power-off cycle.
Program control two work(of the embodiment of the present invention point attenuator can independently adjust the according to user's arrange parameter
The decay of the radiofrequency signal of one radio-frequency channel and the second radio-frequency channel, the radiofrequency signal after the decay is in
Two power splitters are put to be coupled as being introduced to mobile terminal to realize " terminal wireless all the way and by external radio frequency interface
Cell switches ".Meanwhile, the integrated power switch control of program control two work(point attenuator of the embodiment of the present invention
Unit, can automatically control base station power break-make and power-on and power-off cycle to realize that " base station is anti-by embedded program
Multiple power-down rebooting ".Because whole test process without going control manually, the radiofrequency signal of two-way decay can be certainly
Moving adjustment and base station power break-make and power-on and power-off cycle can also automatically control.Therefore, using the embodiment of the present invention
Program control two work(point attenuator can greatly simplify " switching of terminal wireless cell " and " base station power down weight repeatedly
Open " test environment constitute, and facilitate easy-to-use, commissioning cost of labor can be saved, improve version commissioning effect
Rate, promotes to improve version quality, and produce cheap with maintenance cost.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of program control two work(point attenuator that the embodiment of the present invention one is provided；
Fig. 2 be the program control two work(point attenuator that the embodiment of the present invention two is provided carry out " terminal wireless cell is cut
Change " test flow chart；
Fig. 3 is " the base station power down weight repeatedly that the program control two work(point attenuator that the embodiment of the present invention two is provided is carried out
Open " test flow chart.
Specific embodiment
Further illustrate technical scheme below in conjunction with the accompanying drawings and by specific embodiment.Can be with
Understand, specific embodiment described herein is used only for explaining the present invention, rather than to limit of the invention
It is fixed.It also should be noted that, for the ease of description, portion related to the present invention is illustrate only in accompanying drawing
Divide rather than entire infrastructure.
Embodiment one
Fig. 1 is a kind of program control two work(point attenuator that the embodiment of the present invention one is provided, and program control two work(point declines
Subtract device and be applied to communication test field, greatly simplify " switching of terminal wireless cell " and " fall repeatedly base station
Electricity is restarted " test environment constitute.Program control two work(point attenuator can be connected by external radio frequency interface 5
Mobile terminal, and the radiofrequency signal after coupling is introduced the mobile terminal to provide penetrating for two-way differential declines
Frequency signal.After mobile terminal accesses the different attenuating RF signals of two-way, can be carried out according to RF signal strength
Screening is realized " switching of terminal wireless cell " with selecting stronger radiofrequency signal.
Wherein, program control two work(point attenuator includes that microcontroller 1, the first radio-frequency channel 2, second are penetrated
Frequency passage 3, two power splitters 4, power switch control unit 8 and user manipulation unit 6, wherein：
The user manipulates unit 6, for receiving the arrange parameter of user input and by arrange parameter hair
Deliver to the microcontroller 1.
Preferably, user's manipulation unit 6 is the input and output being made up of membrane keyboard and liquid crystal display
Interface.The membrane keyboard is made up of four key boards, and four buttons are respectively " SET " and set key, " OK "
Acknowledgement key, " incremental " button are used to receive the setting that user is manually input into " successively decreasing " button
Parameter.The liquid crystal display is used to show current state and related setting menu and arrange parameter, described
Both membrane keyboard and liquid crystal display together form outside artificial operate interface.Except being operated by user
Outside program control two work(of unit 6 pairs point attenuator is configured or controls, can also be by external remote computation
Machine is configured or controls to program control two work(point attenuator.
The microcontroller 1, for the first radio-frequency channel 2 being connected in parallel according to arrange parameter control
With the decay of the radiofrequency signal of the second radio-frequency channel 3, the radiofrequency signal after the decay is by two power splitters 4
It is coupled as being exported all the way and by external radio frequency interface 5.Radiofrequency signal after the coupling can be penetrated by external
Frequency interface 5 is introduced to the mobile terminal can be realized " switching of terminal wireless cell ".The external radio frequency connects
Mouth 5 can be N-type interface.
The central processing unit that the microcontroller 1 is made up of a piece of or several large scale integrated circuit.
Microcontroller 1 can complete instruction fetch, execute instruction, and exchange information with extraneous memory and logical block
It is the operation control part of microcomputer Deng operation.
Two power splitter 4, is that one kind will be divided into the equal or unequal energy of two-way by input signal energy all the way
Device, also can in turn by two paths of signals energy synthesis export all the way.In the present embodiment, two work(
Device 4 is divided to be combined into all the way two-way attenuating RF signals.
The power switch control unit 8, its one end passes through RJ45 interfaces 7 and the phase of the microcontroller 1
Even, the other end is connected with base station power, and the power switch control unit 8 is used for according to the microcontroller
The program control base station power switch on and off of 1 control signal for sending and power-on and power-off cycle.The control signal by
Microcontroller 1 is generated according to the arrange parameter of user.By program control base station power switch on and off and power-on and power-off week
Phase can realize " base station repeatedly power-down rebooting ".
Specifically, the power switch control unit 8 can simultaneously distinguish the direct current group power supply of control base station power supply
Switch with exchange group power switch, and can according to set upper electric duration with it is lower electric when long periodicity switch repeatedly.
Exemplary, the base station power can include, but are not limited to, direct current group 24V, direct current 48V with
And the three-way power such as exchange group 220V, the power switch control unit 8 is according to arrange parameter to direct current group
Be controlled with the switch on and off state for exchanging group power supply with realize to above-mentioned three-way power direct current group 24V,
48V and exchange group 220V are selected, and can according to set upper electricity duration with it is lower electric when long periodicity it is anti-
Multiple switching.For example, the power-on and power-off cycle can be set to：Lower electric 20 seconds, upper electric 15 minutes, so
Cycle switches repeatedly.
In the technical scheme of the above-mentioned offer of the present embodiment, the radio-frequency channel of first radio-frequency channel 1 and second
2 are connected with the first radio frequency interface 11 and the second radio frequency interface 12 respectively, first radio frequency interface 11 and
Two radio frequency interfaces 12 are connected to introduce different base station signal respectively with two different base stations.
First radio-frequency channel 2 preferably includes the first fixed attenuator 20, digital attenuation being sequentially connected
The fixed attenuator 22 of device 21 and second.
The both sides of first fixed attenuator, 20 and second fixed attenuator 22 are respectively connected in series hilted broadsword
Double-throw RF switch, the microcontroller 1 controls the first fixed attenuator 20 and second according to arrange parameter
The selection of the both sides RF switch of fixed attenuator 22 is determining whether fixed attenuator connects into circuit to radio frequency
Signal is fixed decay.The fixed attenuator pad value is 20dB.
The digital pad 21, each gear for carrying out radiofrequency signal according to the arrange parameter of microcontroller declines
Subtract.
The pad value scope of digital pad 21 be 0~31.5dB, the universal input that it passes through microcontroller 1/
Delivery outlet (General Purpose Input Output, GPIO) is directly controlled, digital pad 21
Whether there are 0.5dB, 1dB, 2dB, 4dB, 8dB and 16dB totally 6 optional independent decay for accessing in inside
Gear, so the first of the first fixed attenuator 20, the fixed attenuator of digital pad 21 and second composition
Radio-frequency channel 2 has 8 independent decay gears altogether, together form the adjustment dynamic model of 0~71.5dB
Enclose, it is possible to achieve the pad value control to radio-frequency channel 2.The maximum attenuation value of first radio-frequency channel 2
71.5dB is decayed 20dB by the first fixed attenuator 20, the decay of digital pad 21 31.5dB and second
Fixed attenuator decay 20dB is constituted.
Second radio-frequency channel 3 it is preferential including the first fixed attenuator 30, digital pad for being sequentially connected
31 and second fixed attenuator 32.The composition and attenuation principle only for the first radio-frequency channel 2 are carried out above
Interpretation.Because the composition and attenuation principle of the second radio-frequency channel 3 are consistent with the first radio-frequency channel 2, because
This is no longer illustrated.
Include specifically, manipulating unit 6 by the user and being configured parameter：Program control two work(point declines
Subtract the working frequency range of device, fixed attenuation pattern, dynamic attenuation pattern, the power switch control unit 8
Switch on and off and power-on and power-off cycle.
The working frequency range of program control two work(point attenuator is 0~3.4GHZ.
The fixed attenuation pattern refers to：User manipulates unit 6 and is respectively provided with the first radio frequency by the user
, there is no saltus step in the pad value of the radio-frequency channel 3 of passage 2 and second.For example, can be by the first radio-frequency channel 2
And second the pad value of radio-frequency channel 3 be set to, but be not limited to 20dB.
Dynamic attenuation pattern refers to：According to the period of change that user sets, make the first radio-frequency channel 2 and second
The pad value of radio-frequency channel 3 set two pad values between saltus step or according to setting step value described two
Gradually change back and forth between individual pad value.Exemplary, can be by the first radio-frequency channel 2 and the second radio-frequency channel 3
Pad value be arranged on saltus step between 20dB and 50dB；Or each saltus step 2dB in units of 20 seconds, decline
Depreciation gradually changes back and forth between 20dB and 50dB.
Preferably, program control two work(point attenuator also includes usb 10, with the microcontroller 1
It is connected, the usb 10 is used to receive the control instruction of remote computer to realize remote computer pair
Program control two work(point attenuator carries out remote control.
The test process of existing " switching of terminal wireless cell " and " base station repeatedly power-down rebooting " needs to adopt
Connect different power splitters respectively to build test environment with multiple programmable attenuators and a large amount of cables, because
This existing test environment is extremely complex.Simultaneously as needing to put into substantial amounts of manpower in existing test process
Go that repetitive control base station power is switched on-off and the power-on and power-off cycle is to realize test purpose.
However, program control two work(of the embodiment of the present invention point attenuator can independently be adjusted according to user's arrange parameter
The decay of the radiofrequency signal of whole first radio-frequency channel and the second radio-frequency channel, the radiofrequency signal after the decay is led to
Built-in two power splitter is crossed to be coupled as being exported all the way and by external radio frequency interface.Meanwhile, the embodiment of the present invention
The program control two work(point integrated power switch control unit of attenuator, base can be automatically controlled by embedded program
Stand on/off and power-on and power-off cycle.Because whole test process without going control manually, what two-way was decayed penetrates
Frequency signal can be automatically controlled also in adjust automatically and base station power break-make and power-on and power-off cycle.Therefore, using this
Program control two work(of inventive embodiments point attenuator can greatly simplify " switching of terminal wireless cell " and " base station
The test environment of power-down rebooting repeatedly " is constituted, and facilitates easy-to-use, can save commissioning cost of labor, is improved
Version commissioning efficiency, promotes to improve version quality, and produce cheap with maintenance cost.
Embodiment two
Because practical devices have different insertion loss and device has individual difference, to reach decay
Control is accurate, occurs needing before dispatching from the factory or using process carrying out school to program control two work(point attenuator
It is accurate.Preferably, the calibration of program control two work(point attenuator is to connect remote computation by usb 10
Machine, the remote computer can also be realized program control to this in addition to realizing that embedded software is every and setting function
The calibration of two work(point attenuator.Its calibration is main by working frequency range, be preset as 340M, 400M, 700M,
Eight frequency ranges such as 1.4G, 1.8G, 2.1G, 2.5G and 3.3G, user can use according to oneself actual test
Signal frequency range, selects close frequency range to be configured, and calibration function is exactly by remote computer control
Power meter and program control two work(point attenuator, generate the calibration table of each frequency range to improve control accuracy.
Its calibration process is as follows：
First radio frequency interface 11 and the second radio frequency interface 12 of program control two work(point attenuator are connected known respectively
The radio-frequency signal source of performance number, power meter is connected by the external radio frequency interface of program control two work(point attenuator；
Program control two work(is controlled to divide what the first radio-frequency channel 2 and the second radio-frequency channel 3 in attenuator included
First fixed attenuator (20,30), digital pad (21,31) and the second fixed attenuator (22,
32) respectively decay gear (comprising each independent gear in digital pad inside) is not accessed, i.e., do not carry out radio frequency
During signal attenuation, power meter reading is made the difference with known radio-frequency signal source performance number to obtain Measurement channel insertion
Loss；
Microcontroller 1 controls the first fixed attenuator (20,30), numeral respectively according to user's arrange parameter
The switch on and off of attenuator (21,31) and the second fixed attenuator (22,32), it is ensured that only access successively
One decay gear, channel attenuation value when each decay gear is independently accessed makes the difference with passage insertion loss
To obtain the actual attenuation value of each gear；
The sample frequency single-tone in different operating frequency range is measured respectively, i.e., in each working frequency range, for example,
Under eight working frequency range such as 340M, 400M, 700M, 1.4G, 1.8G, 2.1G, 2.5G and 3.3G,
Traversal measures the actual attenuation value under each decay gear of the first radio-frequency channel 2 and the second radio-frequency channel 3 to obtain
The calibration table of each frequency range of program control two work(point attenuator is obtained, and is handed down to by serial ports by remote computer
Program control two work(divides attenuator to be saved in internal FLASH.
By above-mentioned calibration, the actual attenuation value of program control two work(point attenuator can be controlled more accurately.
Embodiment three
Fig. 2 be the program control two work(point attenuator that the embodiment of the present invention three is provided carry out " terminal wireless cell is cut
Change " test flow chart.
Occur specific radio frequency signal attenuation value or time value in following test process merely to clearer
Whole test process is illustrated, without limiting in itself radio frequency signal attenuation value or time value, the radio frequency letter
Number pad value or time value can be adjusted according to situation is realized.
Step S200, the closed loop radiofrequency signal of two base stations A, B is respectively connected to program control two work(point attenuator
The first radio frequency interface 11 and the second radio frequency interface 12, and external radio frequency interface 5 is connected into mobile terminal.
Wherein, base station A, B radiofrequency signal can respectively pass through the first radio-frequency channel 2 and the second radio-frequency channel 3
Decayed and be introduced to the mobile terminal to realize " terminal wireless cell after two power splitter 4 is coupled
Switching ".
Step S210, debugged before every check and set.
The every inspection includes with setting：
Determine that mobile terminal has permission to log on two base stations A, B；
If gateway is different, the route id of base station is set to difference；
It is adjacency list that the L3 of base station is set into other side；
The mobile enable of base station is opened；And
The RARCH of base station can not be placed on last time slot.
Step S220, opening base station a-signal adjust the decay of the radiofrequency signal of the first radio-frequency channel 2, when
Mobile terminal receives the pad value PLa that the first radio-frequency channel 2 is recorded when radiofrequency signal is -60dBm.
Step S230, closing base station a-signal simultaneously open penetrating for base station B signal the second radio-frequency channel 3 of regulation
The decay of frequency signal, the second radio-frequency channel is recorded when mobile terminal is received when signal is -70dBm and -50dBm
3 corresponding pad value PL1 and PL2.
Step S240, the fixed attenuation value of the first radio-frequency channel 2 of setting are PLa, set the second radio-frequency channel
3 dynamic attenuation values be with 20s as the cycle between two values of PL1 and PL2 saltus step or according to user set
Step value gradual change.
Step S250, the mobile terminal and other-end are carried out voice calling service, connect terminal diagnostics
Tool software observes the mobile terminal state.Specifically, the mobile terminal and other-end are carried out into voice industry
Business, enters according to the pad value set for the first radio-frequency channel 2 and the second radio-frequency channel 3 in step S240
The decay of row two paths, when mobile terminal accesses the first radio-frequency channel 2 and the two-way of the second radio-frequency channel 3 not
With attenuating RF signals after, can be screened according to RF signal strength with select stronger radiofrequency signal with
Realize " switching of terminal wireless cell ", due to being likely to occur the voice call of mobile terminal in handoff procedure
Business is impacted, it will thus be seen that diagnosis ASSOCIATE STATISTICS is counted and pays close attention to voice quality change to verify that base station sets
The test of standby Stability and dependability.
Program control two work(of the embodiment of the present invention point attenuator can independently adjust the according to user's arrange parameter
The decay of the radiofrequency signal of one radio-frequency channel and the second radio-frequency channel, the radiofrequency signal after the decay is in
Two power splitters are put to be coupled as being exported all the way and by external radio frequency interface.Because whole test process is without manually
Go control, two-way decay radiofrequency signal can adjust automatically therefore, using program control two work(of the embodiment of the present invention
The test environment that dividing attenuator can greatly simplify " switching of terminal wireless cell " is constituted, and facilitates easy-to-use,
Can save commissioning cost of labor, improve version commissioning efficiency, promote to improve version quality, and produce with
Maintenance cost is cheap.
Example IV
Fig. 3 is " the base station power down weight repeatedly that the program control two work(point attenuator that the embodiment of the present invention three is provided is carried out
Open " test flow chart.Comprise the following steps that：
Step S300, the input of the power module powered for base station is connected into the program control two work(point decay
The 220V output ends of the power switch control unit 8 of device, the 220V of power switch control unit 8 is defeated
Enter end to be connected with civilian 220V power supply bases.The controllable power supply class of power switch control unit 8
Type is direct current 24V, direct current 48V and alternating current 220V.
Step S320, configuration opening base station parameter, confirm base station can start and complete to webmaster registration,
Mobile terminal has access to.
Step S330, the usb 10 of program control two work(point attenuator is connected with remote computer.
Step S340, the power switch of the power switch control power supply 8 for setting program control two work(point attenuator lead to
The parameter in disconnected and power-on and power-off cycle.Specifically, the power switch control unit 8 is according to the power switch
The parameter in break-make and power-on and power-off cycle with the direct current group power switch of the program control base station power with exchange group electricity
Source switch, and according to set upper electricity duration with it is lower electric when long periodicity switch to realize " falling repeatedly base station repeatedly
Electricity is restarted ".
The base station output journal of step S350, observation remote computer record, the analysis each power down in base station is opened
Whether dynamic flow is complete and with the presence or absence of exception error situation.
Program control two work(of the embodiment of the present invention point integrated power switch control unit of attenuator, by insertion
Formula program can automatically control base station power break-make and power-on and power-off cycle.Because whole test process without going manually
Control, base station power break-make and power-on and power-off cycle can also automatically control.Therefore, using the embodiment of the present invention
The test environment that program control two work(point attenuator can greatly simplify " base station repeatedly power-down rebooting " is constituted, and just
Easy use, can save commissioning cost of labor, improve version commissioning efficiency, promote to improve version quality, and
And produce cheap with maintenance cost.
Note, above are only presently preferred embodiments of the present invention and institute's application technology principle.Those skilled in the art
It will be appreciated that the invention is not restricted to specific embodiment described here, can enter for a person skilled in the art
The various obvious changes of row, readjust and substitute without departing from protection scope of the present invention.Therefore, though
The present invention is described in further detail by above example so, but the present invention be not limited only to
Upper embodiment, without departing from the inventive concept, can also include more other Equivalent embodiments,
And the scope of the present invention is determined by scope of the appended claims.
Claims (10)
1. a kind of program control two work(divides attenuator, and program control two work(point attenuator by external radio frequency for being connect
Mouth connection mobile terminal, it is characterised in that program control two work(point attenuator includes that microcontroller, first are penetrated
Frequency passage, the second radio-frequency channel, two power splitters, power switch control unit and user manipulation unit, wherein：
The user manipulates unit, for receiving the arrange parameter of user input and sending the arrange parameter
To the microcontroller；
The microcontroller, for according to the arrange parameter the first radio-frequency channel for being connected in parallel of control and the
The decay of the radiofrequency signal of two radio-frequency channels, the radiofrequency signal after the decay is coupled as one by two power splitters
Road is simultaneously exported by the external radio frequency interface；And
The power switch control unit, its one end is connected with the microcontroller, the other end and base station power
It is connected, the power switch control unit is program control described for the control signal sent according to the microcontroller
The switch on and off of base station power and power-on and power-off cycle.
2. attenuator according to claim 1, it is characterised in that program control two work(point attenuator
Also include USB interface, be connected with the microcontroller, the USB interface is used to receive remote computer
Control instruction remote control is carried out to program control two work(point attenuator to realize remote computer.
3. attenuator according to claim 1, it is characterised in that the arrange parameter includes：Institute
The working frequency range of program control two work(point attenuator, fixed attenuation pattern, dynamic attenuation pattern, the power supply is stated to open
Close switch on and off and the power-on and power-off cycle of control unit.
4. attenuator according to claim 3, it is characterised in that wherein：
The fixed attenuation pattern refers to：User is respectively provided with the first radio frequency and leads to by user manipulation unit
, there is no saltus step in road and the pad value of the second radio-frequency channel；And
Dynamic attenuation pattern refers to：According to the period of change that user sets, jumped between two pad values for setting
Become or according to setting step value, gradually change back and forth between described two pad values.
5. attenuator according to claim 1, it is characterised in that user's manipulation unit includes
Membrane keyboard and liquid crystal display, wherein：
The membrane keyboard, for receiving the arrange parameter of user input and sending to institute the arrange parameter
State microcontroller；And
The liquid crystal display, current state and correlation for showing program control two work(point attenuator set
Put the arrange parameter of menu and user input.
6. attenuator according to claim 1, it is characterised in that first radio-frequency channel and
Two radio-frequency channels are connected with the first radio frequency interface and the second radio frequency interface respectively, first radio frequency interface and
Two radio frequency interfaces are used to be connected respectively with two different base stations, wherein the first radio-frequency channel and the second radio-frequency channel
Including：
The first fixed attenuator, digital pad and the second fixed attenuator being sequentially connected；
First fixed attenuator and the second fixed attenuator both sides respectively connected RF switch, to control
Whether first fixed attenuator and the second fixed attenuator connect radiofrequency signal is fixed into circuits
Decay；
The digital pad, each gear for carrying out radiofrequency signal according to the arrange parameter of microcontroller transmission declines
Subtract.
7. attenuator according to claim 6, it is characterised in that first fixed attenuator and
The pad value of the second fixed attenuator is 20dB.
8. attenuator according to claim 6, it is characterised in that the decay of the digital pad
Value scope is 0~31.5dB.
9. attenuator according to claim 6, it is characterised in that the digital pad is provided with
0.5dB, 1dB, 2dB, 4dB, 8dB and 16dB, totally 6 optional independent decay gears.
10. attenuator according to claim 6, it is characterised in that it is described be sequentially connected first consolidate
Determine the first radio-frequency channel and the second radio-frequency channel that attenuator, digital pad and the second fixed attenuator are constituted
Pad value scope be 0~71.5dB.
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| CN201510835786.3A CN106803778A (en) | 2015-11-26 | 2015-11-26 | A kind of program control two work(point attenuator |
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| CN201510835786.3A CN106803778A (en) | 2015-11-26 | 2015-11-26 | A kind of program control two work(point attenuator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111431633A (en) * | 2020-03-17 | 2020-07-17 | Oppo（重庆）智能科技有限公司 | Test method and system, and storage medium |
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| CN104579509A (en) * | 2014-12-11 | 2015-04-29 | 国家无线电监测中心检测中心 | Radio frequency link switching device for IOT (interoperability test) and IOT method |
| CN205356358U (en) * | 2015-11-26 | 2016-06-29 | 北京信威通信技术股份有限公司 | Attenuator is divided to two programme -controlled merits |
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| CN201352781Y (en) * | 2008-11-13 | 2009-11-25 | 武汉凡谷电子技术股份有限公司 | Programmable step attenuator |
| US20100232472A1 (en) * | 2008-12-17 | 2010-09-16 | Dallum Gregory E | Uwb delay and multiply receiver |
| CN101765128A (en) * | 2008-12-24 | 2010-06-30 | 联芯科技有限公司 | Dual-mode terminal testing device and dual-mode terminal testing method |
| CN102209333A (en) * | 2010-03-31 | 2011-10-05 | 大唐移动通信设备有限公司 | Power supply control method and equipment |
| CN102055427A (en) * | 2010-11-24 | 2011-05-11 | 南京理工大学 | Microwave millimeter wave ultra-wide band low phase shift six-figure attenuator |
| CN103618578A (en) * | 2013-11-07 | 2014-03-05 | 中国电子科技集团公司第四十一研究所 | Radio-frequency signal power agility method based on numerical control attenuation |
| CN104579509A (en) * | 2014-12-11 | 2015-04-29 | 国家无线电监测中心检测中心 | Radio frequency link switching device for IOT (interoperability test) and IOT method |
| CN205356358U (en) * | 2015-11-26 | 2016-06-29 | 北京信威通信技术股份有限公司 | Attenuator is divided to two programme -controlled merits |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111431633A (en) * | 2020-03-17 | 2020-07-17 | Oppo（重庆）智能科技有限公司 | Test method and system, and storage medium |
| CN111431633B (en) * | 2020-03-17 | 2022-06-21 | Oppo（重庆）智能科技有限公司 | Test method and system, and storage medium |
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