CN102175948A - Physical line parameter testing device, method and single board equipment - Google Patents
Physical line parameter testing device, method and single board equipment Download PDFInfo
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- CN102175948A CN102175948A CN2011100308841A CN201110030884A CN102175948A CN 102175948 A CN102175948 A CN 102175948A CN 2011100308841 A CN2011100308841 A CN 2011100308841A CN 201110030884 A CN201110030884 A CN 201110030884A CN 102175948 A CN102175948 A CN 102175948A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
- H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
- H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop
- H04M3/305—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop testing of physical copper line parameters, e.g. capacitance or resistance
- H04M3/306—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop testing of physical copper line parameters, e.g. capacitance or resistance for frequencies above the voice frequency, e.g. xDSL line qualification
Abstract
The invention provides a physical line parameter testing device, a physical line parameter testing method and single board equipment. The device comprises a data processing and control unit, a switch, a signal generator, a signal receiver and a plurality of analogue-to-digital converters, wherein the data processing and control unit is used for controlling the signal generator, the signal receiver and the switch, and calculating physical parameters of a tested line according to digital signals output by the analogue-to-digital converters; the switch is used for selecting the tested line, and connecting the tested line with the signal generator and the signal receiver; the signal generator is used for generating an excitation signal, and transmitting the excitation signal to the tested line; the signal receiver is used for acquiring and feeding the signal on the tested line back; and the plurality of analogue-to-digital converters are used for performing analogue-to-digital conversion on the excitation signal fed back by the signal generator and the acquisition signal fed back by the signal receiver, and outputting the converted digital signals to the data processing and control unit. By the device, the method and the single board equipment, the problem that a 112 test bench cannot automatically switch different lines for testing is solved, and the operating efficiency is improved.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of proving installation, method and single-board device of circuit physical parameter.
Background technology
Because the continuous maturation and the development of mechanics of communication, the user of xDSL (Digital SubscriberLine, Digital Subscriber Line) increases fast, and the xDSL signal transmits between local side (CO) and user side (CPE) by subscribers feeder.But multiple factor affecting such as subscribers feeder can be worn out, makes moist, artificial destruction cause the xDSL signal to be attenuated, even interrupt.
In order to ensure the normal operation of xDSL business, improve telecom service quality, need measure timely fast the subscriber's line parameter.The subscriber's line parameter testing mainly comprises between TIP line (also claiming electrode line), the RING line (also claiming negative line), the TIP line over the ground, over the ground DC voltage of RING line, alternating voltage, insulation resistance, electric capacity etc.
At present, the test of subscribers feeder parameter is mainly finished by the subscriber line test platform, but this equipment volume is bigger, and the price comparison costliness can't realize when it tests different circuit automaticallying switch, and must dependence manually finish switching.
Summary of the invention
Fundamental purpose of the present invention is to provide a kind of proving installation, method and single-board device of circuit physical parameter, to solve the above-mentioned subscriber line test platform problem that different circuits test that can't automatically switch at least.
According to an aspect of the present invention, a kind of proving installation of circuit physical parameter is provided, this device comprises: data processing and controller, be used for control-signals generator, signal receiver and switch, and the digital signal of reception analog to digital converter output, physical parameter according to tested circuit is determined the digital signal that participation is calculated, and calculates the physical parameter of tested circuit according to the digital signal of the participation calculating of determining; Switch is used for selecting tested circuit according to the control of data processing and controller, and tested circuit is communicated with signal generator and signal receiver; Signal generator is used for producing pumping signal according to the control of data processing and controller, and this pumping signal is sent to tested circuit, and to data processing and controller feedback excitation signal; Signal receiver is used for gathering signal on the tested circuit according to the control of data processing and controller, and feeds back acquired signal to data processing and controller; A plurality of analog to digital converters are used for the pumping signal of signal generator feedback is carried out analog to digital conversion, and the acquired signal of signal receiver feedback is carried out analog to digital conversion, and the digital signal after the conversion is exported to data processing and controller.
According to a further aspect in the invention, provide a kind of single-board device, comprised CPU and said apparatus, the data processing in this device links to each other with CPU with controller.
According to another aspect of the invention, a kind of method of testing of circuit physical parameter is provided, this method is used above-mentioned proving installation, may further comprise the steps: switch is selected tested circuit according to the control of data processing and controller, and tested circuit is communicated with signal generator and signal receiver; Signal generator produces pumping signal according to the control of data processing and controller, and pumping signal is sent to tested circuit, and to data processing and controller feedback excitation signal; Signal receiver is gathered signal on the tested circuit according to the control of data processing and controller, feeds back acquired signal to data processing and controller; Analog to digital converter carries out analog to digital conversion to the pumping signal of signal generator feedback and the acquired signal of signal receiver feedback, obtains digital signal, exports this digital signal; Data processing and controller receive the digital signal of analog to digital converter output, determine to participate in the digital signal calculated according to the physical parameter of tested circuit, and the digital signal of calculating according to the described participation of determining is calculated the physical parameter of described tested circuit.
By the present invention, adopt data processing and the controller gauge tap to select measurement circuit automatically, do not need the manual switchover measurement circuit, simplified operation, solved the subscriber line test platform problem that different circuits test that can't automatically switch, improved operating efficiency; Simultaneously, this device is smaller, is convenient to be integrated on the broadband access plate (for example, single-board device), and is easy to use.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation according to the proving installation of the circuit physical parameter of the embodiment of the invention 1;
Fig. 2 is the concrete structure block diagram according to the data processing of the embodiment of the invention 1 and controller;
Fig. 3 is the structural representation according to the single-board device of the embodiment of the invention 1;
Fig. 4 is the structural representation according to the proving installation of the circuit physical parameter of the embodiment of the invention 2;
Fig. 5 is the another kind of structural representation according to the proving installation of the circuit physical parameter of the embodiment of the invention 2;
Fig. 6 is the structural representation according to the single-board device of the embodiment of the invention 2;
Fig. 7 is the method for testing process flow diagram according to the circuit physical parameter of the embodiment of the invention 3;
Fig. 8 is the model synoptic diagram according to the measurement circuit of the embodiment of the invention 3;
Fig. 9 is the synoptic diagram according to the measurement circuit voltage of the embodiment of the invention 3;
Figure 10 is the synoptic diagram according to the measurement circuit capacitance-resistance of the embodiment of the invention 3;
Figure 11 is the synoptic diagram according to the measurement circuit nonlinear device of the embodiment of the invention 3.
Embodiment
Hereinafter will describe the present invention with reference to the accompanying drawings and in conjunction with the embodiments in detail.Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
The embodiment of the invention is by adopting data processing and the controller gauge tap tested circuit of selection automatically, the purpose that the different circuits of having realized automaticallying switch are tested.Based on this, the embodiment of the invention provides a kind of proving installation, method and single-board device of circuit physical parameter.Wherein, the tested circuit in the embodiment of the invention can be twisted-pair feeder (being also referred to as subscribers feeder), also can be concentric cable, and the twisted-pair feeder here refers to the circuit be made up of TIP line and RING line.
Embodiment 1
Fig. 1 shows the structural representation according to the proving installation of the circuit physical parameter of the embodiment of the invention, this device comprises: data processing and controller 12, signal generator 14, signal receiver 16, switch 18 and a plurality of analog to digital converter, wherein, a plurality of analog to digital converters refer to more than 1, respectively corresponding every circuit to be tested, be arranged on signal generator 14 and data processing and controller 12, between signal receiver 16 and data processing and the controller 12, present embodiment is that example describes with two analog to digital converters, is respectively analog to digital converter 20a and analog to digital converter 20b; Wherein, data processing links to each other respectively with signal generator 14, signal receiver 16 and switch 18 with controller 12; The function of each device is as follows:
Data processing and controller 12, be used for control-signals generator 14, signal receiver 16 and switch 18, and the digital signal of reception analog to digital converter 20a and 20b output, physical parameter according to tested circuit is determined the digital signal that participation is calculated, and calculates the physical parameter of tested circuit according to the digital signal of the participation calculating of determining;
Signal generator 14 is used for producing pumping signal according to the control of data processing and controller 12, and pumping signal is sent to tested circuit, and to data processing and controller 12 feedback excitation signals;
Signal receiver 16 is used for gathering signal on the tested circuit according to the control of data processing and controller 12, and feeds back acquired signal to data processing and controller 12;
Analog to digital converter 20a is used for the pumping signal of signal generator 14 feedbacks is carried out analog to digital conversion, and the digital signal after the conversion is exported to data processing and controller 12;
Analog to digital converter 20b is used for the acquired signal of signal receiver 16 feedbacks is carried out analog to digital conversion, and the digital signal after the conversion is exported to data processing and controller 12.
The port that switch 18 fingers in the present embodiment link to each other with circuit to be tested, it is analog switch, during actual the realization, data processing is communicated with signal generator 14 and signal receiver 16 by the circuit that sends digital signaling zero and 1 triggering current tested to these ports with controller 12, for example: circuit to be tested has 4, and when the circuit of current tested is first, data processing can produce " 1000 " instruction with controller 12 and send to each port that links to each other with circuit to be tested successively, the port that receives " 1 " will be connected circuit to be tested, as the circuit of current tested.
The concrete mode of the processing of 12 pairs of feedback signals of data processing and controller is relevant with the physical parameter that will record in the present embodiment, and those skilled in the art can realize the physical parameter of being surveyed according to the concrete algorithm of physics general knowledge design.For example: if when the physical parameter of current desire test is the voltage of circuit, the signal that can directly read signal receiver 16 feedbacks after the analog to digital converter conversion carries out corresponding calculating.Present embodiment is selected tested circuit automatically by adopting data processing and controller gauge tap, solved the subscriber line test platform problem that different circuits test that can't automatically switch, simultaneously, the device volume of present embodiment is also smaller, compare with the subscriber line test platform, cost is lower, and is simple to operate, switching between each port is responsible for by software, without manual switching.By the physical parameter (performance parameter) of the circuit measured, can judge whether circuit exists defective, line broken circuit for example, short circuit etc., and then finish consequent malfunction and recover to handle.
Referring to Fig. 2, be the concrete structure block diagram of above-mentioned data processing and controller 12, this data processing and controller 12 comprise:
Wherein, the acquisition instructions of present embodiment comprises the instruction of trigger pip receiver 16 opening and closing, so that signal receiver 16 enters duty and off working state;
In order to improve the precision of test, said apparatus also comprises: a plurality of operational amplifiers, be arranged between tested circuit and the signal generator 14, be used for the pumping signal that signal generator 14 produces is amplified, and be arranged between tested circuit and the signal receiver 16, be used for the signal of tested circuit feedback is amplified.
Physical parameter according to test can also comprise in the said apparatus: by the bleeder circuit module that two resistance constitute, be arranged between tested circuit and the signal receiver 16, be used to share the voltage of 12 of tested circuit and data processing and controllers.
In order to obtain the electric current of tested circuit, said apparatus can also comprise: a plurality of appointment resistance, be arranged between tested circuit and the signal generator 14, be used for providing the voltage of specifying resistance, so that data processing and controller 12 calculate the electric current of tested circuit according to the resistance of this voltage and appointment resistance to data processing and controller 12.
Data processing in the present embodiment and controller 12 produce DC voltage, alternating voltage or step signal according to the physical parameter control-signals generator of desiring to obtain 14, for example, send different steering orders according to the physical parameter of desiring to obtain, to produce different pumping signals.
The said apparatus of present embodiment can be made an equipment separately, and this equipment can link to each other with the CPU in the external world, finishes test assignment under the control of CPU.This device also can be arranged on the single-board device, and referring to the structural representation of single-board device shown in Figure 3, this equipment is example to adopt device shown in Figure 1, also comprises CPU 22 and EPLD 24.The data processing of this device can be connected with the CPU 22 on the single-board device with controller 12, wherein, data processing and controller 12 are devices of special operation circuit test, itself and outside employing SPI (Service Provider Interface, ISP's interface) mode communication;
If CPU has the SPI mouth, can directly use the SPI of CPU to dock with controller 12 with data processing, realize the direct control of CPU, i.e. mode shown in the dotted line among the figure to it.
If there is not the SPI mouth on the CPU, also can pass through EPLD (Erasable Programmable Logic Device, Erasable Programmable Logic Device) changes, convert HOST (main frame) bus mode to the SPI mode, and then be connected with controller 12 with data processing, CPU handles and controller 12 by EPLD indirect go visit and control data like this; This dual mode is as long as choosing is wherein a kind of; CPU and EPLD are all arranged, because HOST commentaries on classics SPI is more convenient, so present embodiment comes control data to handle and controller 12 by EPLD on the present single-board device.If mode shown in the dotted line promptly adopts the SPI interface on the CPU, line is realized also fairly simple with fewer.
Above-mentioned device in the present embodiment can adopt existing device to realize, also can be according to the above-mentioned device of line design of test.The device of present embodiment can be realized testing many circuits automatically, and is simple to operation, and its volume is little, easy to use, is integrated on the single-board device to be easy to carry, and cost is lower simultaneously, has stronger market application foreground.
Embodiment 2
Present embodiment is that subscriber's line (twisted-pair feeder) is an example with circuit to be measured, a kind of proving installation of subscriber's line physical parameter is provided, referring to Fig. 4, this device mainly comprises signal generator, signal receiver, switch, resistance, ADC (analog to digital converter), AMP (operational amplifier) and data processing and controller, annexation between each device can be adjusted as required, present embodiment only is that example describes with Fig. 4, but be not limited to structure shown in Figure 4, wherein, TIP0, RING0 are a pair of subscribers feeder, and be corresponding with ST0, the SR0 of receiving unit; And the like, TIP7, RING7 be another to subscribers feeder, corresponding with ST7, the SR7 of receiving unit.The function of each device is as follows:
1. data processing and controller---can select the circuit tested as required, with switch S
ONPerhaps switch S
OFFBe connected on the circuit to be measured, the feedback of the pumping signal that signal generator is sent is handled calculating with the signal that signal receiver is received simultaneously, needing finally to obtain the line parameter circuit value of measurement;
2. signal generator---can produce specific pumping signal, comprise amplitude adjustable DC voltage signal, the ac voltage signal of amplitude and frequency adjustable, the step signal that slope and amplitude are adjustable;
3. signal receiver---the response signal on the sampling circuit, and it is transferred to data processing and controller.
4. resistance---R
MWith R
GConstitute bleeder circuit, damage device when preventing that external voltage is higher; Pass through measure R
CThe magnitude of voltage at two ends can calculate signal generator and output to electric current on TIP and the RING line; Work as switch S
OFFWhen being connected on the circuit to be measured, can allow the electric capacity on TIP and the RING line discharge over the ground, doing this operation before measurement can increase measuring accuracy.For example, at first switch to be connected to circuit to be measured when surveying voltage, need this moment controller to control; It is the amplitude of signal of data processing and controller transmission and size of current (electric current is that the magnitude of voltage by those resistance two ends obtains divided by resistance sizes) that signal feedback after signal generator comes out is in addition given the fundamental purpose of data processing and controller; If only survey voltage, can not use the signal of signal generator feedback, directly use the signal of signal receiver feedback, the data of reading are multiplied by 1+Rm/Rg (voltage is by Rm and Rg dividing potential drop).
5. ADC---the simulating signal that obtains is changed into digital signal, make data processing and controller to handle, this device can be arranged in data processing and the controller, also can be arranged on outside data processing and the controller, and present embodiment Fig. 4 is for being arranged on outside data processing and the controller.
6. AMP---amplify the signal of output and amplify the signal that receives, improve measuring accuracy, this device is optional device.
7. switch S
ONPerhaps S
OFF---S
ONEffect be to be communicated with or to disconnect circuit to be measured, S
OFFEffect be will be selected line-to-ground; It can be analog switch.
Referring to Fig. 5, be the another kind of implementation of the switch in the present embodiment, wherein, when needing test, with S
ONBe connected on the corresponding circuit, when not testing with S
ONBe connected on the ground.
Equally, Fig. 4 and device shown in Figure 5 also can be arranged on the single-board device, at this moment, CPU on the single-board device links to each other with controller with data processing on this device, and its connected mode still can have two kinds, i.e. dual mode among the embodiment 1, here be that example describes only with device shown in Figure 4, referring to the structured flowchart of single-board device shown in Figure 6, single-board device is handled and controller by the CPU control data on it, finishes the test of circuit.
The signal generator of present embodiment sends known signal to subscriber's line to be measured, signal receiver receives the feedback signal on the subscribers feeder subsequently, handle by data processing and controller, determine the physical characteristics of subscribers feeder, whole test process does not need the manual switchover measurement circuit, directly can realize by data processing and controller sending controling instruction, simple to operate, and the cost of device is lower.
Embodiment 3
Fig. 7 shows the method for testing process flow diagram according to the circuit physical parameter of the embodiment of the invention, and the proving installation in this method uses the proving installation in the foregoing description 1 or 2, may further comprise the steps:
Step S702, switch is selected tested circuit according to the control of data processing and controller, and tested circuit is communicated with signal generator and signal receiver;
Step S704, signal generator produces pumping signal according to the control of data processing and controller, this pumping signal is sent to tested circuit, and feed back this pumping signal to data processing and controller;
Step S706, signal receiver is gathered signal on the tested circuit according to the control of data processing and controller, feeds back acquired signal to data processing and controller;
Step S708, analog to digital converter carries out analog to digital conversion to the pumping signal of signal generator feedback and the acquired signal of signal receiver feedback, obtains and export this digital signal;
Step S710, data processing and controller receive the digital signal that analog to digital converter is exported, and determine the digital signal that participation is calculated according to the physical parameter of tested circuit, calculate the physical parameter of tested circuit according to the digital signal of the participation calculating of determining.
Wherein, signal generator comprises according to the control generation pumping signal of data processing and controller: data processing and controller produce steering order according to the physical parameter of desiring to obtain; Signal generator produces DC voltage, alternating voltage or step signal according to steering order.
Fig. 8 shows the model structure block diagram of the measurement circuit of the embodiment of the invention, wherein, and C
TGBe the electric capacity between TIP line and the ground, C
RGBe the electric capacity between RING line and the ground, C
TRBe the electric capacity between TIP line and the RING, R
TGBe the resistance between TIP line and the ground, R
RGBe the resistance between RING line and the ground, R
TRBe the resistance between TIP line and the RING, U
TG_DCFor passing through equiva lent impedance Z between TIP line and the ground
BAT_TIPThe DC voltage of coupling, U
TG_ACFor passing through equiva lent impedance Z between TIP line and the ground
BAT_TIPThe alternating voltage of coupling, U
RG_DCFor passing through equiva lent impedance Z between RING line and the ground
BAT_RINGThe DC voltage of coupling, U
RG_ACFor passing through equiva lent impedance Z between RING line and the ground
BAT_RINGThe alternating voltage of coupling, U
TR_DCFor passing through equiva lent impedance Z between TIP line and the RING line
BAT_TIPRINGThe DC voltage of coupling, U
TR_ACFor passing through equiva lent impedance Z between TIP line and the RING line
BAT_TIPRINGThe alternating voltage of coupling.
Based on measurement circuit shown in Figure 8, the proving installation measurement circuit voltage that present embodiment adopts embodiment 2 to provide, Fig. 9 is a measurement circuit voltage synoptic diagram, concrete test process is as follows:
Magnitude of voltage on signal receiver Direct Sampling TIP, the RING line, be transferred to data processing and controller, data processing and controller be according to this magnitude of voltage, and according to known conditions, calculate DC voltage, alternating voltage on TIP, the RING line, and the frequency of AC signal.Because the input voltage of signal receiver is restricted, therefore need after carrying out dividing potential drop, handle the voltage of importing.For example:
When measuring DC voltage, signal receiver is passed to data processing and controller with the magnitude of voltage that collects, data processing and controller according to the electric resistance partial pressure of this value and known fixed than the DC voltage that calculates on TIP and the RING line;
When measuring alternating voltage, the data that signal receiver receives by the fixed frequency sampling, then these data are passed to data processing and controller successively, data processing and controller calculate the frequency and the peak-to-peak value of AC signal according to these data and known electric resistance partial pressure ratio.Because the fixed-frequency of signal receiver sampled data, therefore also restricted for the frequency of the AC signal on the circuit, the frequency of signal receiver sampled data is high more, but then on the survey line road frequency of AC signal also high more, the sampled data frequency of setting signal receiver as required.
Based on measurement circuit shown in Figure 8, the capacitance-resistance of the proving installation measurement circuit that present embodiment employing embodiment 2 provides, Figure 10 shows measurement circuit capacitance-resistance synoptic diagram.In order to prevent that the voltage influence measuring accuracy is arranged on the electric capacity, can discharge to the electric capacity on TIP, the RING line earlier, signal generator produces known DC voltage, sine wave signal or step signal by the order that produces signal respectively on TIP, RING line then, and gives data processing and controller with this signal feedback; Wherein, the order that produces signal can also can be elder generation's generation AC signal for producing DC voltage earlier, and signal can produce by a graded as required repeatedly; Signal receiver is measured the feedback signal of the various excitations that produce on the circuit, and gives data processing and controller data transfer, and data processing and the signal that the controller basis receives go out C by specific algorithm computation
TG, C
RG, C
TR, R
TG, R
RG, R
TRDeng the circuit physical parameter.
During measuring resistance, the first step adds known DC level V1 on the TIP line, and the signal output ground connection of RING line is gathered the data of measuring on TIP, the RING line by signal receiver, passes to data processing and controller; Second step added known DC level V2 on the RING line, the signal output ground connection of TIP line is passed to data processing and controller by signal receiver respectively with the data of measuring on TIP, the RING line; Data processing and controller calculate R according to the algorithm of the data that receive by setting
TG, R
RGWith R
TR
When measuring electric capacity, for R
TG, R
RGWith R
TRIt is minimum that the measuring error that causes is reduced to as far as possible, measures R earlier
TG, R
RGWith R
TRValue.The alternating voltage V3 that on the TIP line, adds given frequency then, the signal output open circuit of RING line is gathered the data of measuring on TIP, the RING line (phase place that comprises signal) by signal receiver, passes to data processing and controller; The alternating voltage V4 that on the RING line, adds given frequency, the signal output open circuit of TIP line is passed to data processing and controller by signal receiver with the data of measuring on TIP, the RING line (comprising phase place); Data processing and controller are according to data that receive and the R that measures
TG, R
RGWith R
TRValue, the algorithm by setting calculates C
TG, C
RGWith C
TR
In addition, the proving installation that the embodiment of the invention provides can also be used for whether nonlinear device is arranged on the measurement circuit, and Figure 11 is the synoptic diagram of present embodiment measurement circuit nonlinear device, and concrete test process is as follows:
When measuring circuit resistance, by between TIP line and RING line, adding positive voltage since diode Diode be in reverse blocking state, R
LOADCan not influence the R of measurement
TR, the value that measure this moment is R
TR_POSWhen adding negative electricity between TIP line and the RING line, diode Diode conducting, the R that record this moment
TR_NEGBe R
LOADWith R
TRThe parallel connection value.If R
TR_POSWith R
TR_NEGDiffer greatly, then can judge between TIP and the RING line has nonlinear device, and can know the polarity of nonlinear device, if R
TR_POSWith R
TR_NEG, these two values are more or less the same, and then can know between TIP and the RING does not have nonlinear device.When the test nonlinear device, R
TRNeed to select greater than R
LOADDevice is with the accuracy that guarantees to measure.
Alternatively, present embodiment only provides above-mentioned several test mode, according to actual test request, can in data processing and controller different data processing algorithms be set, and changes the concrete steps and the method for above-mentioned measuring circuit physical parameter.
Present embodiment adopts the proving installation among the embodiment 1 or 2 can obtain the physical parameter of circuit automatically, Processing Algorithm by data processing in the proving installation and controller obtains test result, solve the subscriber line test platform and can not realize the problem of measurement circuit that automaticallyes switch, and then improved the efficient of test.
As can be seen from the above description, the proving installation in the embodiment of the invention adopts data processing and controller gauge tap to select measurement circuit automatically, does not need the manual switchover measurement circuit, has simplified operation, has improved operating efficiency.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the memory storage and carry out by calculation element, and in some cases, can carry out step shown or that describe with the order that is different from herein, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. the proving installation of a circuit physical parameter is characterized in that, comprising:
Data processing and controller, be used for control-signals generator, signal receiver and switch, and the digital signal of reception analog to digital converter output, determine to participate in the digital signal calculated according to the physical parameter of tested circuit, the digital signal of calculating according to the described participation of determining is calculated the physical parameter of described tested circuit;
Described switch is used for selecting tested circuit according to the control of described data processing and controller, and described tested circuit is communicated with described signal generator and described signal receiver;
Described signal generator is used for producing pumping signal according to the control of described data processing and controller, described pumping signal is sent to described tested circuit, and feed back described pumping signal to described data processing and controller;
Described signal receiver is used for gathering signal on the described tested circuit according to the control of described data processing and controller, and to described data processing and controller feedback acquired signal;
A plurality of described analog to digital converters, be used for the described pumping signal of described signal generator feedback is carried out analog to digital conversion, described acquired signal to described signal receiver feedback is carried out analog to digital conversion, and the digital signal after will changing is exported to described data processing and controller.
2. device according to claim 1 is characterized in that, described data processing and controller comprise:
Control module is used for sending pumping signal to described signal generator and produces instruction, sends acquisition instructions to described signal receiver, and to described switch transmitting line selection instruction;
Signal receiving module is used to receive the digital signal that described a plurality of analog to digital converter is exported;
Parameter calculating module, be used for selecting to participate in the digital signal calculated according to the digital signal that the physical parameter of tested circuit receives from described signal receiving module, the digital signal of calculating according to the described participation of selecting is calculated the physical parameter of described tested circuit.
3. device according to claim 1 is characterized in that, described device also comprises:
First operational amplifier is arranged between described tested circuit and the described signal generator, is used for the pumping signal that described signal generator produces is amplified.
4. device according to claim 1 is characterized in that, described device also comprises:
Second operational amplifier is arranged between described tested circuit and the described signal receiver, is used for the signal on the described tested circuit is amplified.
5. device according to claim 1 is characterized in that, described device also comprises:
By the bleeder circuit module that two resistance constitute, be arranged between described tested circuit and the described signal receiver, be used to share described tested circuit and the voltage between described data processing and controller.
6. device according to claim 1 is characterized in that, described device also comprises:
A plurality of appointment resistance are arranged between described tested circuit and the described signal generator, are used for providing to described data processing and controller the voltage of described appointment resistance.
7. device according to claim 1 is characterized in that, described data processing and controller are controlled described signal generator according to the physical parameter of desiring to obtain and produced DC voltage, alternating voltage or step signal.
8. according to each described device of claim 1-7, it is characterized in that described circuit is twisted-pair feeder or concentric cable.
9. a single-board device comprises CPU, it is characterized in that, also comprises each described device of claim 1-7, and the data processing of described device links to each other with described CPU with controller.
10. the method for testing of a circuit physical parameter is characterized in that, described method is used each described device of claim 1-7, comprising:
Switch is selected tested circuit according to the control of data processing and controller, and described tested circuit is communicated with signal generator and signal receiver;
Described signal generator produces pumping signal according to the control of described data processing and controller, described pumping signal is sent to described tested circuit, and feed back described pumping signal to described data processing and controller;
Described signal receiver is gathered signal on the described tested circuit according to the control of described data processing and controller, to described data processing and controller feedback acquired signal;
Analog to digital converter carries out analog to digital conversion to the pumping signal of described signal generator feedback and the described acquired signal of described signal receiver feedback, obtains digital signal, exports described digital signal;
Described data processing and controller receive the digital signal of described analog to digital converter output, determine to participate in the digital signal calculated according to the physical parameter of tested circuit, the digital signal of calculating according to the described participation of determining is calculated the physical parameter of described tested circuit.
11. method according to claim 10 is characterized in that, described signal generator comprises according to the control generation pumping signal of described data processing and controller:
Described data processing and controller produce steering order according to the physical parameter of desiring to obtain;
Described signal generator produces DC voltage, alternating voltage or step signal according to described steering order.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110030884.1A CN102175948B (en) | 2011-01-28 | 2011-01-28 | The proving installation of circuit physical parameter, method and single-board device |
| PCT/CN2011/075960 WO2012100493A1 (en) | 2011-01-28 | 2011-06-20 | Equipment, method and single board device for testing physical parameters of lines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110030884.1A CN102175948B (en) | 2011-01-28 | 2011-01-28 | The proving installation of circuit physical parameter, method and single-board device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102175948A true CN102175948A (en) | 2011-09-07 |
| CN102175948B CN102175948B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110030884.1A Expired - Fee Related CN102175948B (en) | 2011-01-28 | 2011-01-28 | The proving installation of circuit physical parameter, method and single-board device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102175948B (en) |
| WO (1) | WO2012100493A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608469A (en) * | 2012-03-29 | 2012-07-25 | 北京经纬恒润科技有限公司 | Testing device |
| CN103248370A (en) * | 2012-02-03 | 2013-08-14 | 联发科技（新加坡）私人有限公司 | Key setting method |
| CN107153158A (en) * | 2016-03-04 | 2017-09-12 | 深圳市汇顶科技股份有限公司 | A kind of chip performance method of testing, apparatus and system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1516015A (en) * | 2003-01-09 | 2004-07-28 | 华为技术有限公司 | Multichain boundary scanning test system and multichain boundary scanning test method |
| CN1848773A (en) * | 2005-04-05 | 2006-10-18 | 华为技术有限公司 | Method for parallel detecting XDSL and testing equipment |
| CN1869722A (en) * | 2005-05-27 | 2006-11-29 | 安捷伦科技有限公司 | Channel switching circuit |
-
2011
- 2011-01-28 CN CN201110030884.1A patent/CN102175948B/en not_active Expired - Fee Related
- 2011-06-20 WO PCT/CN2011/075960 patent/WO2012100493A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1516015A (en) * | 2003-01-09 | 2004-07-28 | 华为技术有限公司 | Multichain boundary scanning test system and multichain boundary scanning test method |
| CN1848773A (en) * | 2005-04-05 | 2006-10-18 | 华为技术有限公司 | Method for parallel detecting XDSL and testing equipment |
| CN1869722A (en) * | 2005-05-27 | 2006-11-29 | 安捷伦科技有限公司 | Channel switching circuit |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103248370A (en) * | 2012-02-03 | 2013-08-14 | 联发科技（新加坡）私人有限公司 | Key setting method |
| CN103248370B (en) * | 2012-02-03 | 2016-02-03 | 联发科技（新加坡）私人有限公司 | Press keys setup method |
| CN102608469A (en) * | 2012-03-29 | 2012-07-25 | 北京经纬恒润科技有限公司 | Testing device |
| CN102608469B (en) * | 2012-03-29 | 2014-08-13 | 北京经纬恒润科技有限公司 | Testing device |
| CN107153158A (en) * | 2016-03-04 | 2017-09-12 | 深圳市汇顶科技股份有限公司 | A kind of chip performance method of testing, apparatus and system |
| CN107153158B (en) * | 2016-03-04 | 2020-01-03 | 深圳市汇顶科技股份有限公司 | Chip performance testing method, device and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102175948B (en) | 2016-01-20 |
| WO2012100493A1 (en) | 2012-08-02 |
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