CN100364354C - Network time-delay testing method - Google Patents
Network time-delay testing method Download PDFInfo
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- CN100364354C CN100364354C CNB2005100002332A CN200510000233A CN100364354C CN 100364354 C CN100364354 C CN 100364354C CN B2005100002332 A CNB2005100002332 A CN B2005100002332A CN 200510000233 A CN200510000233 A CN 200510000233A CN 100364354 C CN100364354 C CN 100364354C
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Abstract
The present invention provides a network time delay testing method which comprises the following steps: two controlled mobile phones are switched on so as to enter a mutual conversation state; a microphone wire is led out from the earphone joint of one of the controlled mobile phones, and a receiver wire is led out from the earphone joint of the other controlled mobile phone; a sound signal is sent to the microphone wire; the sound signal on the microphone wire is taken; capture time T1 is recorded; the sound signal on the receiver wire is detected; the sound signal of the receiver wire is taken; capture time T2 is recorded; the difference value (T2-T1) between the capture timeT2 and the capture time T1 is measured to be the time delay of a whole tested network. The present invention is characterized in that the sound emission of the two mobile phones of double conversation parties is controlled by means of transmitting and detecting the speech of the controlled mobile phones to measure the time of the sound signals of mobile phones on both ends. Thus, the accurate measurement of the speech time delay of the whole network is realized. The present invention has the advantages of simple testing method and low cost. A system does not need changing.
Description
Technical field
The present invention relates to wireless communication technology, relate to the radio communication measuring technology especially, is a kind of network time-delay testing method specifically.
Background technology
Because network configuration becomes increasingly complex at present, and change various at random, the new in addition information transmission technology, new network environment and new network service constantly produce, and make to grasp network operation rule, provide reliable theoretical foundation to become an important topic of network development for the improvement of network technology.Network delay is one of important parameter of assessment network performance end to end.
In mobile communication system, because the existence of links such as access, transmission, exchange has certain time-delay to voice usually.All there is certain requirement in each country to the time-delay of whole system voice, so the equipment supplier must satisfy the requirement of operator, and time-delay provides certain method of measurement to this equipment voice.
At present, the general employing of measurement of voice time-delay inserted side gusset B (NodeB) carries out analytic record to speech frame scheme.The shortcoming of this prior art is that system is had bigger change, implements trouble very.
Summary of the invention
The object of the present invention is to provide a kind of network time-delay testing method, utilize voice to send and speech detection, the sounding of two mobile phones by the control both call sides, the time of measuring the two ends voice signal, the i.e. voice of whole network time-delay controlled mobile phone.
In order to realize described purpose, a kind of network time-delay testing method of the present invention comprises the steps:
Connect two controlled mobile phones, enter the state of communicating with each other;
Draw microphone lines from the earphone interface of a controlled mobile phone wherein, draw headphone line from the earphone interface of another controlled mobile phone of;
Voice signal is sent to described microphone lines, and catch the described voice signal on the described microphone lines, record capture time T1;
Voice signal on the described headphone line is detected, and catch the voice signal of described headphone line, record capture time T2;
The difference (T2-T1) of measuring described T2 and T1 just is the time-delay of the whole network of test.
Before described voice signal sent, described two controlled mobile phones did not send voice, and the receiving terminal of described two controlled mobile phones all is quiet.
Beneficial effect of the present invention is: utilization of the present invention sends and speech detection the voice of controlled mobile phone, the sounding of two mobile phones of control both call sides, by measuring the time of two ends mobile phone voice signal, realize the accurate measurement of whole voice-over-net time-delay, measure error is no more than 100 μ s; And method of testing is simple, and cost is low, does not need any change is done by system.
Description of drawings
Fig. 1 is the mobile phone front schematic view behind the dismounting mobile phone rubber key;
Fig. 2 is the schematic diagram of control unit of the present invention;
Fig. 3 is of the present invention by the theory diagram of needle-bar to the control of mobile phone button operation;
Fig. 4 is the end view of elasticity needle-bar structural representation of the present invention;
Fig. 5 is the vertical view of elasticity needle-bar structural representation of the present invention;
Fig. 6 is the schematic diagram of optical coupling isolation circuit of the present invention;
Fig. 7 is a mobile phone device for positioning and securing structure chart of the present invention;
Fig. 8 is that needle-bar of the present invention is pressed in the effect schematic diagram on the mobile phone;
Fig. 9 is that control board of the present invention overlays the effect schematic diagram on the needle-bar;
Figure 10 is the circuit diagram of voice dispensing device of the present invention;
Figure 11 is the circuit diagram of speech detection device of the present invention;
Figure 12 is a network delay test schematic diagram of the present invention;
Figure 13 is network delay time of the present invention instrumentation plan.
Embodiment
With reference to the accompanying drawings, the specific embodiment of the present invention is described in detail.
Draw three lines from the Earphone joint of controlled mobile phone, be respectively ground wire, headphone line and microphone lines; Directly send the various sound signals of telecommunication to described microphone lines, spoken sounds that just can the anthropomorphic dummy sends to controlled mobile phone, can realize different speech business tests; By detecting the voice signal on the headphone line, realize the mobile phone status detection.
The present invention is by controlled mobile phone being sent and detecting voice signal, the sounding of two mobile phones of control both call sides, catch the time that sends voice signal and detect voice signal by oscillographic probe, measure the difference of described two times, be i.e. the voice of whole network time-delay.
Based on network time-delay testing method of the present invention, comprise the steps:
Connect two controlled mobile phones, enter the state of communicating with each other;
Draw microphone lines from the Earphone joint of a controlled mobile phone wherein, draw headphone line from the Earphone joint of another controlled mobile phone of;
Voice signal is sent to described microphone lines, and utilize an oscillographic probe to catch described voice signal on the described microphone lines, record capture time T1;
Voice signal on the described headphone line is detected, and utilize described oscillographic another probe to catch the voice signal of described headphone line, record capture time T2;
The difference of described T2 and T1 (T2-T1) just is the time-delay of the whole network of test.
The device of realizing network time-delay testing method of the present invention is a mobile phone test macro and an oscilloscope, and described mobile phone test system comprises:
The cell phone controller that constitutes by control unit, photoelectric isolating circuit, conducting probe bed;
Wherein, described control unit: be used to store and wish that controlled mobile phone makes the control program of which kind of operation, and this control program is converted to the control signal that controlled mobile phone key circuit can be discerned; Also be used for and the communicating by letter of master computer,, constitute the test macro of Bulk Call (a lot of mobile phones participate in calling out) with a plurality of mobile phone centralized control;
Photoelectric isolating circuit: be coupled with described control unit, be used for the isolation that to carry out between described control unit and the described controlled mobile phone on electric, damage and disturb to prevent that adversary's machine from causing;
Conducting probe bed: form by many conducting probes, one end and described photoelectric isolating circuit are coupled, and receive control signal from described control unit by described photoelectric isolating circuit, the needle section of each conducting probe is electrically connected with each corresponding key position on the controlled mobile phone key circuit and the conducting by simulating corresponding button and disconnect realization controlling controlled mobile phone.The number of conducting probe that constitutes described conducting probe bed is relevant with the number of keys of controlled mobile phone.
Voice dispensing device: be used to produce the sound signal of telecommunication, and the described sound signal of telecommunication be input to the earphone interface of controlled mobile phone, realize the transmission of voice signal by the microphone lines of drawing from the Earphone joint of controlled mobile phone.
Speech detection device: the signal on the headphone line that is used for the Earphone joint place of controlled mobile phone is drawn detects, and obtains the talking state of described controlled mobile phone.
Described cell phone controller also comprises controlled mobile phone location structure: be used for fixing mobile phone, to guarantee that the relative position between mobile phone and the needle-bar keeps accurately, each conducting probe on the probe bed is well contacted with each key position contact maintenance on the controlled cell phone keyboard circuit.
The schematic diagram of control unit of the present invention as shown in Figure 2, described control unit comprises:
A microprocessor system: be used to produce the Control on Communication signal, the CPU and the indispensable peripheral support circuit that are contained program storage by an inside are formed peripheral support circuit such as crystal oscillator, electric capacity etc.;
External memory storage: be used to deposit some data that control system produces when work;
Communication interface: the signal format that the Control on Communication signal transition that is used for that microprocessor is produced can be discerned for the control computer;
Electric power system: be used to provide control unit needed power supply;
Control unit is by the interface bus of himself, being electrically connected of realization and photoelectric isolating circuit, concrete control method is, the single line of controlling on its interface bus as CPU is that high level, other single line are low level, and these two lines are to be connected with the light-emitting diode of photoelectric isolating circuit importation, at this moment, diode is luminous under the voltage effect, thereby makes the output of optocoupler be conducting state.Otherwise if two lines all are low level, then light-emitting diode can be not luminous, and control unit is exactly to realize that according to this principle photoelectric isolating circuit is had the unglazed control of light.
Be used to realize that control unit of the present invention also can realize by other form, such as and computer between communication interface can change Ethernet interface into by serial line interface, microprocessor can adopt the CPU of other model, and external memory storage can save or adopt the memory cell of CPU inside etc.
Described control unit and photoelectricity coupling circuit can form control board on a pcb board.
The probe that is connected with control unit only need be aimed at the electrode (interior ring or outer shroud) of mobile phone key circuit corresponding line column signal, as Fig. 1, i.e. the button electrode of controlled mobile phone just can be realized and being electrically connected of mobile phone, i.e. realization is communicated with the mobile phone key circuit, thereby realizes the automatic control of mobile phone.
Figure 3 shows that the theory diagram that needle-bar is controlled the mobile phone button operation that passes through of present embodiment.The button electrode of the probe of elasticity needle-bar and controlled mobile phone, promptly the circuit of cell phone keyboard part is connected; The mobile phone key signal of control unit output is input to optical coupling isolation circuit; Buffer circuit carries out electrical isolation to control unit and mobile phone circuit, and the control information that can discern mobile phone circuit passes to mobile phone circuit by needle-bar; The control signal that the mobile phone circuit response receives is carried out the operation of button, thereby realizes the automatic test and the control of mobile phone.
Optical coupling isolation circuit is in order to realize the electrical isolation between control unit and the controlled mobile phone, to be harmless being electrically connected of impermanency (detachably) between elasticity needle-bar and the controlled mobile phone key electrode.
Described needle-bar is that the high conductivity elastic probe by some is welded on the PCB by coordinate position and constitutes, PCB is except carrying these probes physically and in whole device fixing on the participation structure, also plays a part between the probe and being electrically connected of probe and optical coupling isolation circuit.The probe of described needle-bar is corresponding with the physical coordinates that tested mobile phone key is arranged; The end view of the structural representation of elasticity needle-bar and vertical view are respectively as Fig. 4, shown in Figure 5.Wherein, for guaranteeing the conductivity of probe, the syringe needle of probe can be used gold-plated syringe needle; Spring among Fig. 4 is a microsprings; 5,6 be respectively solder joint and pcb board; 7,8,9 are respectively and the corresponding probe of mobile phone key electrode physical location, fixing hole, the plug that is connected with optical coupling isolation circuit among Fig. 5.General mobile phone key circuit is the ranks matrix structure, and the number of conducting probe depends on whether can cover all relevant line and alignments, the distribution principle of conducting probe is that every row or every row only need connect a probe.
Figure 6 shows that the optical coupling isolation circuit schematic diagram of present embodiment.Light-emitting diode of photoelectrical coupler (input stage of optocoupler) and control unit join, the output stage of optocoupler links to each other with conducting probe on the elasticity needle-bar, the elasticity needle-bar links to each other with the key circuit of mobile phone again, therefore the output stage of optocoupler is direct and keyboard circuit UNICOM, because when control unit has the unglazed control of light to the light-emitting diode of optocoupler input stage, the output stage of optocoupler (being a kind of optical semiconductor sensing structure) will present low-resistance or high resistant characteristic, as present the low-resistance characteristic, keyboard circuit for mobile phone, with regard to similar button by short circuit, as present the high resistant characteristic, disconnect with regard to similar button, thereby realize the function of analogue mobile phone button, control unit and mobile phone circuit are isolated by light again simultaneously.Buffer circuit in the present embodiment can also be replaced by relay buffer circuit or AC coupled buffer circuit.
The mobile phone key signal of control unit output is realized the electrical isolation of control unit and mobile phone circuit earlier through optical coupling isolation circuit by optocoupler; Its objective is in order to make control unit and mobile phone internal circuit realize isolation on electric, to prevent because of of the damage and the interference of reasons such as control module and the unification of mobile phone power supply, control unit damage to mobile phone.Optical coupling isolation circuit can pass to mobile phone to the control information that mobile phone circuit can be discerned; Between photoelectric coupled circuit and mobile phone, realize and being connected of mobile phone key electrode by needle-bar.Like this, control module passes to mobile phone with control information by the conduction needle-bar through optical coupling isolation circuit, has realized the automatic control to mobile phone.This connection in conjunction with reliable, the original circuit of mobile phone damage, can recover, be convenient to install and dismantle.
Fig. 7 is a mobile phone device for positioning and securing structure chart of the present invention.Fixedly requiring of mobile phone is simple and easy, accurate, as inaccuracy, the elasticity needle-bar is accurately docked with cell phone keyboard PCB contact.Under the situation of not die sinking, the pcb board that can use the above thickness of 2MM is as fixed structure substrate 11, according to the accurate overall dimension installing and locating bar 13 and the locating cone 15 of mobile phone, 12,14 are respectively the fixing hole of elasticity needle-bar and can be fixed in fixture on other object among the figure on PCB.Use pcb board as a benefit of fixed structure substrate be can by the CAD design will required location dimension and the fixed position of booking awl be designed to the through hole of PCB, processing by printed board is the precision that the precision of Digit Control Machine Tool guarantees detent mechanism.Also can adopt the mobile phone of other form and the location structure of needle-bar, but final purpose all is in order to realize effective location.
Fig. 8, Fig. 9 are respectively needle-bar of the present invention and are pressed in effect schematic diagram on the mobile phone and control board and overlay effect schematic diagram on the needle-bar.After mobile phone placed on the location structure, owing to the position of elasticity needle-bar 16 and fixed structure is also fixed, so the keyboard contact of probe on the elasticity needle-bar and mobile phone had just guaranteed good aligning.Simultaneously control board 19 is installed in the top of elasticity needle-bar by the interface between needle-bar and control board 18, and control board and elasticity needle-bar keep being electrically connected by connector.The afterbody of 17 expression extensible probe among Fig. 8; 20 is the power supply interface of control board among Fig. 9; 21 is the communication interface of control board and main frame, and special control software and hardware can be provided, and realizes automatic operation control and test to the different model mobile phone.
Figure 10 is the circuit diagram of voice dispensing device of the present invention; Wave generator circuit is a sine wave signal the output of signal choice point, and the voltage of signals amplitude is 3.3V.Described voice signal need use for the back level through attenuator circuit, and as Figure 10, described attenuator circuit is exactly a simple resistor voltage divider circuit, and the signal frequency of output is constant, and amplitude attenuation is for having only tens millivolts.Through the isolation of operational amplifier buffer circuit, described voice signal just can connect the earphone interface of controlled mobile phone through microphone lines, when controlled mobile phone is in when putting through state, just can construct actual speech communication, thus the purpose of realization voice transmission.Equally can realize detection to voice according to the circuit of the speech detection device of the present invention of Figure 11.
Present embodiment is selected a kind of general oscilloscope for use, and as shown in figure 12, probe 1 connects the voice transmitting terminal of left routine mobile phone test system in the drawings, the speech detection end of right side mobile phone test system in 2 connection layouts of popping one's head in.Set oscillographic relative set.
Two handset calls are connected, be in talking state, do not send sound by two mobile phones of mobile phone test system control then, two ends all are quiet like this, on oscilloscope, there is not waveform, the mobile phone test system that starts the left side this moment sends sound, the mobile phone test system on right side can detect voice signal, on oscilloscope, can catch simultaneously transmitting terminal voice signal and the receiving terminal voice signal that two probe detections arrive, as shown in figure 13, T1 is exactly the delivery time of sound constantly, and T2 is exactly the moment of hearing sound, and therefore the time-delay of whole network is exactly (T2-T1).
Utilize mobile phone test system and oscilloscope to measure network delay quickly and accurately, be fit to the high traffic test.Network time-delay testing method of the present invention also can directly utilize a voice transtation mission circuit, a speech detection circuit and an oscilloscope to realize.
Network time-delay testing method of the present invention utilizes the earphone interface of mobile phone to realize network delay test end to end, the time-delay that can accurately measure whole network, and error is no more than 100 μ s; And method of testing is simple, and cost is low, does not need system is done any change.
Above embodiment only is used to illustrate the present invention, but not is used to limit the present invention.
Claims (2)
1. a network time-delay testing method is characterized in that, comprises the steps:
Connect two controlled mobile phones, enter the state of communicating with each other;
Draw microphone lines from the earphone interface of a controlled mobile phone wherein, draw headphone line from the earphone interface of another controlled mobile phone of;
Voice signal is sent to described microphone lines, and catch the described voice signal on the described microphone lines, record capture time T1;
Voice signal on the described headphone line is detected, and catch the voice signal of described headphone line, record capture time T2;
The difference (T2-T1) of measuring described T2 and T1 just is the time-delay of the whole network of test.
2. method according to claim 1 is characterized in that: before described voice signal sent, described two controlled mobile phones did not send voice, and the receiving terminal of described two controlled mobile phones all is quiet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100002332A CN100364354C (en) | 2005-01-05 | 2005-01-05 | Network time-delay testing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100002332A CN100364354C (en) | 2005-01-05 | 2005-01-05 | Network time-delay testing method |
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| Publication Number | Publication Date |
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| CN1801995A CN1801995A (en) | 2006-07-12 |
| CN100364354C true CN100364354C (en) | 2008-01-23 |
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| CNB2005100002332A Expired - Fee Related CN100364354C (en) | 2005-01-05 | 2005-01-05 | Network time-delay testing method |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101110654B (en) * | 2007-08-17 | 2011-03-02 | 中兴通讯股份有限公司 | Method and device for testing network delay time |
| CN102857392B (en) * | 2012-08-28 | 2015-07-01 | 福建升腾资讯有限公司 | Voice time-delay test method based on virtualization desktop environment |
| CN112489686A (en) * | 2020-12-02 | 2021-03-12 | 公安部第三研究所 | End-to-end audio signal delay testing method |
| CN112702231B (en) * | 2020-12-21 | 2022-12-16 | 交控科技股份有限公司 | Network delay measuring method and system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1240085A (en) * | 1996-12-10 | 1999-12-29 | 艾利森电话股份有限公司 | Voice path testing in telecommunications system |
| CN1267977A (en) * | 1999-03-17 | 2000-09-27 | 富士通株式会社 | Time-delay correcting system for wireless telephone system |
| CN1350413A (en) * | 2000-10-20 | 2002-05-22 | 索尼国际(欧洲)股份有限公司 | Mobile terminal and earphone |
| CN1523856A (en) * | 2002-12-25 | 2004-08-25 | �ձ����ŵ绰��ʽ���� | Estimation method and apparatus of overall conversational speech quality, program and recording medium for realizing the method |
| CN1553597A (en) * | 2003-05-26 | 2004-12-08 | 华为技术有限公司 | Audio frequency synchronous aligning testing method |
-
2005
- 2005-01-05 CN CNB2005100002332A patent/CN100364354C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1240085A (en) * | 1996-12-10 | 1999-12-29 | 艾利森电话股份有限公司 | Voice path testing in telecommunications system |
| CN1267977A (en) * | 1999-03-17 | 2000-09-27 | 富士通株式会社 | Time-delay correcting system for wireless telephone system |
| CN1350413A (en) * | 2000-10-20 | 2002-05-22 | 索尼国际(欧洲)股份有限公司 | Mobile terminal and earphone |
| CN1523856A (en) * | 2002-12-25 | 2004-08-25 | �ձ����ŵ绰��ʽ���� | Estimation method and apparatus of overall conversational speech quality, program and recording medium for realizing the method |
| CN1553597A (en) * | 2003-05-26 | 2004-12-08 | 华为技术有限公司 | Audio frequency synchronous aligning testing method |
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| CN1801995A (en) | 2006-07-12 |
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