CN105898082B - A kind of speech channel index testing device - Google Patents
A kind of speech channel index testing device Download PDFInfo
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- CN105898082B CN105898082B CN201410593532.0A CN201410593532A CN105898082B CN 105898082 B CN105898082 B CN 105898082B CN 201410593532 A CN201410593532 A CN 201410593532A CN 105898082 B CN105898082 B CN 105898082B
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Abstract
The invention discloses a kind of speech channel index test cards, it includes: main control module (1), audio signal generation module (2), audio signal detection module (3), analog filter block (4), interface impedance module (5), it tests matching module (6), audio signal interface module (7), interface type conversion module (8), timing sequence process and functional control module (9), PCI protocol conversion module (10), PXI bus interface module (11), liquid crystal display/keyboard interface module (12), ethernet interface module (13).The present invention provides PXI bus marco, industry ethernet controls, the control interface of three kinds of standards of liquid crystal display/Keyboard Control, control mode is by the embedded software unified coordination and administration in main control module (1), it is suitable for different test environment, realize the miniaturization, intelligence, more control modes of speech channel index test equipment, conducive to extensive automatization test system is formed, solves the problems such as current separate unit speech path test equipment volume is big, control mode is single, interface is not intuitive, the system integration and calibration are difficult, test data is difficult to secondary use.
Description
Technical field
The invention belongs to technical testing field, in particular to a kind of speech channel technical indicator test device.
Background technique
Speech channel film index testing instrument be widely used in analog/digital interchanger, multi-service transport equipment, integrated dispatch equipment,
The analog subscriber of the equipment such as carrier, radio station is tested, particularly suitable for research and development, production, inspection, entrucking and maintenance.Tradition
Speech channel film index testing instrument is primarily present following deficiency: first is that control mode is single, device extension is poor.Traditional speech channel index test
Instrument is controlled using separate CPU, does not have external control interface, when instrument needs external interface control or increases test function,
It needs to increase or replace CPU and other hardware circuits mostly.Second is that input mode is fixed, interface operation is poor.Traditional speech channel refers to
It marks tester display interface and uses small liquid crystal display, input uses keyboard or touch screen, and display interface is small, visibility/beauty
Sight degree is poor.Third is that output form is single, test result is not intuitive.Traditional speech channel film index testing instrument usually only outputs test result number
According to seldom to output test result or directly judged to the correctness of test result using patterned way.Fourth is that test knot
The fruit way of output is fixed, and data secondary use is poor.Test data is stored in memory by traditional speech channel film index testing instrument,
As a result output generallys use the fixed formats such as text or table, is unfavorable for the secondary use of test result and the statistical of data
Analysis.Fifth is that instrument calibration is difficult.Detection calibration data are usually stored in memory by traditional speech channel film index testing instrument, when
When instrument needs to calibrate using certain time, it usually needs update CPU program, cause calibration difficulties.
Summary of the invention
The object of the present invention is to provide one kind to be overcome the deficiencies in the prior art, propose a kind of control mode multiplicity,
The speech channel index testing device that scalability is strong, degree of intelligence is high.
The technical scheme is that a kind of speech channel index testing device, comprising: main control module, audio signal generate mould
Block, audio signal detection module, analog filter block, interface impedance module, test matching module, audio signal interface module,
Interface type conversion module, timing sequence process and functional control module, PCI protocol conversion module, PXI bus interface module, liquid crystal
Screen/keyboard interface module, ethernet interface module；
The main control module generates test audio signal for controlling the audio signal generation module；Control the audio
Signal detection module completes the detection of Devices to test speech channel audio signal；It controls the interface impedance module and completes test audio signal
Impedance with Devices to test speech channel audio signal converts；It controls the test matching module and completes device under test speech channel audio letter
Number carry out return loss and building test loop and Wien bridge circuit when unbalanced to ground degree index test；Control the timing sequence process
And functional control module completes timing sequence process, PXI expansion bus function treatment, interface type conversion and PXI bus control equipment
Access；It controls the liquid crystal display/keyboard interface module and completes the access of liquid crystal display/keyboard；Control the Ethernet interface mould
Block completes the access of industry ethernet control equipment；
The audio signal generation module generated under the control of the main control module frequency range be 200~4000Hz,
Level range is the test audio signal of+7~-61dBm, and sends the analog filter block to；
The audio signal detection module completes Devices to test speech channel audio signal under the control of the main control module
Amplification, shaping, transformation, acquisition, frequency/level detection；
The analog filter block is for completing 200~4000Hz of test audio signal and Devices to test speech channel audio signal
Bandpass filtering in frequency range；
The interface impedance module completes test audio signal and Devices to test speech channel under the control of the main control module
Impedance transformation between audio signal；
The test matching module carries out return loss and over the ground injustice for completing device under test speech channel audio signal
Test loop and Wien bridge circuit are constructed when weighing apparatus degree index test；
The audio signal interface module is used for the access of Devices to test speech channel audio signal；
The interface type conversion module is used to complete the conversion of Devices to test speech channel audio signal interface type；
The timing sequence process and functional control module complete PCI protocol conversion chip under the control of the main control module
Local timing sequence process, PXI expansion bus function treatment；
The PXI bus interface module completes external PXI bus marco under the control of external PXI bus control equipment
The PXI bus test order of equipment and the main control module, test data, synchronizing information, triggering information exchange；
The PCI protocol conversion module connects for completing the timing sequence process and functional control module with the PXI bus
The conversion of pci bus agreement and timing between mouth mold block；
The PXI bus interface module is for the connection with external PXI bus control equipment；
Liquid crystal display/the keyboard interface module is used for the connection of the main control module and external liquid crystal display/keyboard, Yi Jisuo
State man-machine input/output information exchange between main control module and external liquid crystal display/keyboard；
The ethernet interface module is for the main control module and the control connection of equipment of external Ethernet and described
Industry ethernet test command, test data, synchronizing information, triggering information between main control module and external Ethernet control equipment
Interaction.
The main control module includes: the memory for storing data for controlling and the Centralized Controller of data processing,
Ethernet controller for being connect with the ethernet interface module；
The Centralized Controller includes: control mode management module, test function management module, test data management mould
Block, device upgrade management module；
PXI bus control interface module, the Ethernet described in the control mode management module unified coordination and administration are total
Three kinds of line traffic control interface module, the liquid crystal display/Keyboard Control interface module control modes, three kinds of control modes set for mutual exclusion
Meter, after the control mode management module receives any control command in three kinds of control modes and confirms, automatic shield is another
The input control order of outer two kinds of control modes, until the control mode exits；
The test function management module generates test signal for controlling, and obtains test result data, carries out FFT fortune
Calculation, frequency analysis, level analysis, distortion factor analysis, ranking operation；Test result data is to be measured by calculating after FFT operation
The fundamental voltage component and harmonic voltage component of equipment speech channel audio signal, fundamental voltage component and harmonic voltage component are by adding
Frequency analysis, the level analysis, distortion factor assay value of Devices to test speech channel audio signal are realized after power operation；
Real-time amendment, the storage of test result and classified search of the test data management module for test data are managed
The parametric calibration management of reason, speech channel index testing device；
The device upgrade management module is for program updating and management and version information management.
The present invention is had developed using advanced technologies such as advanced PXI bus, industry ethernet, virtual instrument, data processings
It can be controlled by PXI bus marco, industry ethernet, the speech channel index that three kinds of modes of liquid crystal display/Keyboard Control flexibly control is surveyed
Trial assembly is set, and every kind of control mode all provides hardware interface, software program or the user's secondary development function library of standard, control mode
Flexible and changeable, device extension is strong, is suitable for the demand of different test environment or different user, realizes speech channel feature sets
Miniaturization, intelligence, more control modes, interface operability, visibility, aesthetics are high, are conducive to extensive automate of formation and survey
Test system, solves that current separate unit speech path test equipment volume is big, interface is not intuitive, calibration is difficult, test data is difficult to secondary benefit
The problems such as using.
Detailed description of the invention
Fig. 1 is composition block diagram of the present invention；
Fig. 2 is main control module composition block diagram of the present invention.
Specific embodiment
Embodiment 1: a kind of speech channel index testing device as shown in Figure 1:, comprising: main control module 1, audio signal generate mould
Block 2, audio signal detection module 3, analog filter block 4, interface impedance module 5, test matching module 6, audio signal interface
Module 7, interface type conversion module 8, timing sequence process and functional control module 9, PCI protocol conversion module 10, PXI bus interface
Module 11, liquid crystal display/keyboard interface module 12, ethernet interface module 13；
The main control module 1 generates test audio signal for controlling the audio signal generation module 2；Control the sound
Frequency signal detection module 3 completes the detection of Devices to test speech channel audio signal；It controls the interface impedance module 5 and completes testing audio
The impedance of signal and Devices to test speech channel audio signal converts；It controls the test matching module 6 and completes device under test speech channel
Audio signal carries out building test loop and Wien bridge circuit when return loss and unbalanced to ground degree index test；When controlling described
Sequence processing and functional control module 9 complete timing sequence process, PXI expansion bus function treatment, interface type conversion and the total line traffic control of PXI
The access of control equipment；It controls the liquid crystal display/keyboard interface module 12 and completes the access of liquid crystal display/keyboard；Control the ether
Network interface module 13 completes the access of industry ethernet control equipment；
The audio signal generation module 2 generated under the control of the main control module 1 frequency range be 200~
4000Hz, level range are the test audio signal of+7~-61dBm, and send the analog filter block 4 to；
The audio signal detection module 3 completes Devices to test speech channel audio signal under the control of the main control module 1
Amplification, shaping, transformation, acquisition, frequency/level detection；
The analog filter block 4 for complete test audio signal and Devices to test speech channel audio signal 200~
Bandpass filtering in 4000Hz frequency range；
The interface impedance module 5 completes test audio signal and Devices to test words under the control of the main control module 1
Impedance transformation between the audio signal of road；
The test matching module 6 carries out return loss and over the ground injustice for completing device under test speech channel audio signal
Test loop and Wien bridge circuit are constructed when weighing apparatus degree index test；
The audio signal interface module 7 is used for the access of Devices to test speech channel audio signal；
The interface type conversion module 8 is used to complete the conversion of Devices to test speech channel audio signal interface type；
The timing sequence process and functional control module 9 complete PCI protocol conversion core under the control of the main control module 1
The local timing sequence process of piece, PXI expansion bus function treatment；
The PXI bus interface module 11 completes the total line traffic control of external PXI under the control of external PXI bus control equipment
The PXI bus test order of control equipment and the main control module 1, test data, synchronizing information trigger information exchange；
The PCI protocol conversion module 10 is for completing the timing sequence process and functional control module 9 and the PXI bus
The conversion of pci bus agreement and timing between interface module 11；
The PXI bus interface module 11 is for the connection with external PXI bus control equipment；
Connection of the liquid crystal display/keyboard interface module 12 for the main control module 1 and external liquid crystal display/keyboard, with
And man-machine input/output information exchange between the main control module 1 and external liquid crystal display/keyboard；
Connection of the ethernet interface module 13 for the main control module 1 and external Ethernet control equipment, and
Industry ethernet test command, test data, synchronizing information, touching between the main control module 1 and external Ethernet control equipment
The interaction of photos and sending messages.
Embodiment 2: as shown in Figure 1, 2: a kind of speech channel index testing device, the main control module 1 include: for control and
The Centralized Controller 1.1 of data processing, memory 1.2 for storing data, for connecting with the ethernet interface module 13
The ethernet controller 1.3 connect.
Embodiment 3: as shown in Figure 1, 2: a kind of speech channel index testing device, the Centralized Controller 1.1 includes: controlling party
Formula management module 1.11, test function management module 1.12, test data management module 1.13, device upgrade management module
1.14；
PXI bus control interface module 11 described in 1.11 unified coordination and administration of control mode management module, it is described with
Too three kinds of network bus control interface module 13, the liquid crystal display/Keyboard Control interface module 12 control modes, three kinds of controlling parties
Formula designs for mutual exclusion, and the control mode management module 1.11 receives any control command in three kinds of control modes and confirms
Afterwards, the input control order of the other two kinds of control modes of automatic shield, until the control mode exits；
The test function management module 1.12 generates test signal for controlling, and obtains test result data, carries out FFT
Operation, frequency analysis, level analysis, distortion factor analysis, ranking operation；Test result data pass through FFT operation after calculate to
The fundamental voltage component and harmonic voltage component of measurement equipment speech channel audio signal, fundamental voltage component and harmonic voltage component pass through
Frequency analysis, the level analysis, distortion factor assay value of Devices to test speech channel audio signal are realized after ranking operation；
Real-time amendment, the storage of test result and classification of the test data management module 1.13 for test data are searched
The parametric calibration management of Suo Guanli, speech channel index testing device；
The device upgrade management module 1.14 is for program updating and management and version information management.
When the speech channel index test of mixed-control mode of the present invention is stuck in PXI bus or industry ethernet control, in use
Interface of Virtual Instruments in the machine of position is controlled.Test result uses Graphical output mode in interface, and development language is G language
Speech, developing instrument are LabVIEW 2009.
In test result Graphical output mode, each index all gives corresponding test result template, test result
Template includes CVSD (16K) coding templet, CVSD (32K) coding templet, pcm encoder template, and each template uses image trace-point method
It draws, template edge uses white line using red lines, scale.In above-mentioned three kinds of coding templets, in every kind of template
Appearance includes: level point test request template, return loss test request template, unbalanced to ground degree test request template, free time
Noise testing will seek template, user's gain with the variation test request template of incoming level, frequency distortion characteristic test wants modulus
Plate, total distortion test request template, road border crosstalk measuring will seek template；Each coding templet be respectively adopted dynamic link library mode into
Row encapsulation.
The test result of each test point uses dot matrix output in above-mentioned test result Graphical output mode；Work as test
When being as a result located in template claimed range, output test result a little for green；When test result is located on template line, output is surveyed
Test result point is yellow；When test result is located at outside template claimed range, output test result a little for red.
When the speech channel index test of mixed-control mode of the present invention is stuck in the operation of host computer Interface of Virtual Instruments, speech channel index
Test result will be stored in database in real time.Database uses 2007 database of Microsoft Access, and design uses
Hierarchical structure is constructed the call relation between databases at different levels by relational data library software.
Claims (3)
1. a kind of speech channel index testing device, it is characterized in that: including: main control module (1), audio signal generation module (2), audio
Signal detection module (3), analog filter block (4), interface impedance module (5), test matching module (6), audio signal interface
Module (7), interface type conversion module (8), timing sequence process and functional control module (9), PCI protocol conversion module (10), PXI
Bus interface module (11), liquid crystal display/keyboard interface module (12), ethernet interface module (13)；
The main control module (1) generates test audio signal for controlling the audio signal generation module (2)；Control the sound
Frequency signal detection module (3) completes the detection of Devices to test speech channel audio signal；It controls the interface impedance module (5) and completes test
The impedance of audio signal and Devices to test speech channel audio signal converts；The test matching module (6) is controlled to complete to set to be measured
Standby speech channel audio signal carries out building test loop and Wien bridge circuit when return loss and unbalanced to ground degree index test；Control
The timing sequence process and functional control module (9) complete timing sequence process, PXI expansion bus function treatment, interface type conversion and
The access of PXI bus control equipment；It controls the liquid crystal display/keyboard interface module (12) and completes the access of liquid crystal display/keyboard；Control
Make the access that the ethernet interface module (13) complete industry ethernet control equipment；
The audio signal generation module (2) generated under the control of the main control module (1) frequency range be 200~
4000Hz, level range are the test audio signal of+7~-61dBm, and send the analog filter block (4) to；
The audio signal detection module (3) completes Devices to test speech channel audio signal under the control of the main control module (1)
Amplification, shaping, transformation, acquisition, frequency/level detection；
The analog filter block (4) is for completing 200~4000Hz of test audio signal and Devices to test speech channel audio signal
Bandpass filtering in frequency range；
The interface impedance module (5) completes test audio signal and Devices to test words under the control of the main control module (1)
Impedance transformation between the audio signal of road；
The test matching module (6) carries out return loss and unbalanced to ground for completing device under test speech channel audio signal
Building test loop and Wien bridge circuit when spending index test；
The audio signal interface module (7) is used for the access of Devices to test speech channel audio signal；
The interface type conversion module (8) is used to complete the conversion of Devices to test speech channel audio signal interface type；
The timing sequence process and functional control module (9) complete PCI protocol conversion core under the control of the main control module (1)
The local timing sequence process of piece, PXI expansion bus function treatment；
The PXI bus interface module (11) completes external PXI bus marco under the control of external PXI bus control equipment
The PXI bus test order of equipment and the main control module (1), test data, synchronizing information, triggering information exchange；
The PCI protocol conversion module (10) is for completing the timing sequence process and functional control module (9) and the PXI bus
The conversion of pci bus agreement and timing between interface module (11)；
The PXI bus interface module (11) is for the connection with external PXI bus control equipment；
Liquid crystal display/the keyboard interface module (12) is used for the connection of the main control module (1) and external liquid crystal display/keyboard, with
And man-machine input/output information exchange between the main control module (1) and external liquid crystal display/keyboard；
Connection of the ethernet interface module (13) for the main control module (1) and external Ethernet control equipment, and
The main control module (1) and external Ethernet control equipment between industry ethernet test command, test data, synchronizing information,
Trigger the interaction of information.
2. a kind of speech channel index testing device as described in claim 1, it is characterised in that: the main control module (1) includes: use
In the Centralized Controller (1.1) of control and data processing, memory (1.2) for storing data is used for and the Ethernet
The ethernet controller (1.3) of interface module (13) connection.
3. a kind of speech channel index testing device as claimed in claim 2, it is characterised in that: Centralized Controller (1.1) packet
It includes: control mode management module (1.11), test function management module (1.12), test data management module (1.13), equipment
Updating and management module (1.14)；
PXI bus control interface module (11) described in control mode management module (1.11) unified coordination and administration, it is described with
Too three kinds of control modes of network bus control interface module (13), the liquid crystal display/Keyboard Control interface module (12), three kinds of controls
Mode processed designs for mutual exclusion, and the control mode management module (1.11) receives any control command in three kinds of control modes
And after confirming, the input control order of the other two kinds of control modes of automatic shield, until the control mode exits；
The test function management module (1.12) generates test signal for controlling, and obtains test result data, carries out FFT fortune
Calculation, frequency analysis, level analysis, distortion factor analysis, ranking operation；Test result data is to be measured by calculating after FFT operation
The fundamental voltage component and harmonic voltage component of equipment speech channel audio signal, fundamental voltage component and harmonic voltage component are by adding
Frequency analysis, the level analysis, distortion factor assay value of Devices to test speech channel audio signal are realized after power operation；
Real-time amendment, the storage and classified search of test result of the test data management module (1.13) for test data
Management, the parametric calibration management of speech channel index testing device；
The device upgrade management module (1.14) is for program updating and management and version information management.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410593532.0A CN105898082B (en) | 2014-10-30 | 2014-10-30 | A kind of speech channel index testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410593532.0A CN105898082B (en) | 2014-10-30 | 2014-10-30 | A kind of speech channel index testing device |
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| Publication Number | Publication Date |
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| CN105898082A CN105898082A (en) | 2016-08-24 |
| CN105898082B true CN105898082B (en) | 2019-10-18 |
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| CN201410593532.0A Expired - Fee Related CN105898082B (en) | 2014-10-30 | 2014-10-30 | A kind of speech channel index testing device |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0360553A (en) * | 1989-07-29 | 1991-03-15 | Fujitsu Ltd | Test control system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1112796C (en) * | 1999-01-28 | 2003-06-25 | 深圳市中兴通讯股份有限公司 | Tester and test system for user card of program controlled switch |
| CN1126324C (en) * | 2000-10-18 | 2003-10-29 | 深圳市中兴通讯股份有限公司 | Universal user board testing equipment |
| CN202190315U (en) * | 2011-06-14 | 2012-04-11 | 深圳市赛纳科技有限公司 | Tester and test system of program control exchanger |
| CN103414529B (en) * | 2013-08-26 | 2015-05-20 | 华北计算技术研究所 | Universal automatic testing and fault diagnosis system |
| CN203643021U (en) * | 2013-12-04 | 2014-06-11 | 中国电子科技集团公司第五十研究所 | Audio frequency echo loss test module achieved by employing impedance transformation |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0360553A (en) * | 1989-07-29 | 1991-03-15 | Fujitsu Ltd | Test control system |
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