CN110445513B

CN110445513B - Automatic testing method, device and system, PC terminal and storage medium

Info

Publication number: CN110445513B
Application number: CN201910737704.XA
Authority: CN
Inventors: 殷有玲; 任超; 黄小清; 艾奇获; 赵儒丹
Original assignee: Shenzhen Tongwei Communication Technology Co ltd
Current assignee: Shenzhen Tongwei Communication Technology Co ltd
Priority date: 2019-08-08
Filing date: 2019-08-08
Publication date: 2021-08-13
Anticipated expiration: 2039-08-08
Also published as: CN110445513A

Abstract

The application relates to an automatic testing method, device and system, a PC terminal and a storage medium, and belongs to the technical field of the Internet. The method comprises the following steps: responding to the test operation input by the user, and acquiring the test parameters input by the user; sequentially taking i from 1 to K, and sending a first acquisition request for acquiring the signal-to-noise ratio and the bit error rate of a Cable signal in a mixed test signal received by a tested Cable modem under the ith central frequency to the tested Cable modem; receiving the signal-to-noise ratio and the bit error rate of a Cable signal returned by the tested Cable modem in response to the first acquisition request under the ith central frequency; obtaining a test result under the ith central frequency according to the error rate under the ith central frequency; and generating a test report based on the ith central frequency, the signal-to-noise ratio under the ith central frequency, the bit error rate and the test result. The method can quickly test the problem that the Cable signal in the coaxial Cable is interfered by the MoCA signal.

Description

Automatic testing method, device and system, PC terminal and storage medium

Technical Field

The application belongs to the technical field of internet, and particularly relates to an automatic testing method, device and system, a PC terminal and a storage medium.

Background

A Cable Modem (CM) is a device used for accessing the internet on a Cable television network, and is a Cable Modem connected in series between a Cable television Cable socket of a user's home and an internet access device. The Multimedia over Coax Alliance (MoCA) transmits Multimedia video information by using a coaxial cable, and can manage and configure uplink and downlink bandwidths.

With the development of multimedia communication, the demand for broadband internet access is increasingly pressing. The cable television network has abundant bandwidth resources, so that the application scenarios of the cable modem and the coaxial cable multimedia alliance modem are more and more extensive, and as two technologies in the same transmission medium, when signals are transmitted in the same transmission medium, because the frequency ranges of transmission data are overlapped, the signals are necessarily influenced by each other, so that how to test the interference of the cable modem by the MoCA signals is a technical problem to be solved.

Disclosure of Invention

In view of this, an object of the present application is to provide an automatic testing method, apparatus, system, PC terminal and storage medium, so as to quickly test the problem of the strength of the MoCA signal interference resistance of the cable modem under test.

The embodiment of the application is realized as follows:

in a first aspect, an embodiment of the present application provides an automated testing method, which is applied to a PC terminal connected to a tested Cable modem, where a mixed test signal including a MoCA signal with specified frequency and maximum power, a Cable signal with specified frequency band range and minimum power is input to a receiving end of the tested Cable modem, and the method includes: responding to the test operation input by the user, and acquiring the test parameters input by the user, wherein the test parameters comprise: start frequency, end frequency, and frequency stepping; sequentially taking i from 1 to K, and sending a first acquisition request for acquiring the signal-to-noise ratio and the bit error rate of a Cable signal in the mixed test signal received by the tested Cable modem under the ith central frequency to the tested Cable modem, wherein the ith central frequency is equal to the starting frequency plus (i-1) times of the frequency step, K is a numerical value obtained by downward rounding a quotient of A and the frequency step, and A is a difference value of the termination frequency and the starting frequency; receiving the signal-to-noise ratio and the bit error rate of the Cable signal returned by the tested Cable modem in response to the first acquisition request under the ith central frequency; obtaining a test result under the ith central frequency according to the error rate under the ith central frequency; and generating a test report based on the ith central frequency, the signal-to-noise ratio under the ith central frequency, the bit error rate and the test result.

The embodiment of the application provides a testing method capable of automatically testing the interference of a tested Cable modem by MoCA signals, a tester only needs to connect a mixed testing signal containing MoCA signals with specified frequency and maximum power and Cable signals with specified frequency band range and minimum power to the tested Cable modem, test parameters such as initial frequency, termination frequency and frequency stepping are set in automatic testing software of a PC terminal, then the software is operated, the test on data such as signal-to-noise ratio, error rate and the like in the set frequency range can be automatically completed, test data is automatically recorded to generate a test report, and the strength of the anti-interference capability of the tested Cable modem on the MoCA signals can be quickly tested. Meanwhile, by testing multiple groups (K groups) of test data, the reliability of the test result is ensured, and the test error is reduced.

With reference to the first possible implementation manner of the embodiment of the first aspect, the PC terminal and the measured cable modem are further connected to a frequency spectrograph; after the test parameters input by the user are obtained in response to the test operation input by the user, the method further comprises the following steps: sending a second acquisition request for acquiring the signal power of the Cable signal received by the tested Cable modem under the ith central frequency to the frequency spectrograph; receiving the signal power of a Cable signal received by the tested Cable modem under the ith central frequency, which is acquired by the frequency spectrograph in response to the second acquisition request; correspondingly, generating a test report based on the ith central frequency, and the signal-to-noise ratio, the bit error rate and the test result under the ith central frequency, wherein the test report comprises: and generating a test report based on the ith central frequency, and the signal-to-noise ratio, the bit error rate, the test result and the signal power under the ith central frequency. In the embodiment of the application, a frequency spectrograph is respectively connected with the Cable modem to be tested and the PC terminal to obtain the signal power of the Cable signal received by the Cable modem to further learn the influence degree of the Cable modem to be tested on the interference of the MoCA signal.

With reference to the second possible implementation manner of the embodiment of the first aspect, before sending, to the spectrum analyzer, a second obtaining request for obtaining a signal power of a Cable signal received by the Cable modem under the ith center frequency, the method further includes: initializing the frequency spectrograph, and setting parameters of the frequency spectrograph based on preset parameters. In the embodiment of the application, before the second acquisition request is sent to the spectrometer, the spectrometer is initialized, and the parameters of the spectrometer are set based on the preset parameters, so that the accuracy and the reliability of the signal power acquired by the spectrometer are improved.

With reference to the third possible implementation manner of the embodiment of the first aspect, the testing parameters further include: the method comprises the following steps that a filter frequency band is selected, i is sequentially selected from 1 to K, and before a first acquisition request for acquiring the signal-to-noise ratio and the bit error rate of a Cable signal received by a tested Cable modem under the ith central frequency is sent to the tested Cable modem, the method further comprises the following steps: and setting the tested cable modem according to the frequency band of the filter, so that the tested cable modem works under the frequency band of the filter. In the embodiment of the application, the filter frequency band of the tested cable modem is set, so that the anti-interference capability of the tested cable modem on the MoCA signal under different filter frequency bands can be tested quickly, and the flexibility of the method is improved.

In a second aspect, an embodiment of the present application further provides an automated testing method, including: determining that the PC terminal is normally connected with the tested cable modem; inputting a mixed test signal containing a MoCA signal with specified frequency and maximum power and a Cable signal with specified frequency band range and minimum power to the tested Cable modem; and testing the tested cable modem by using the method provided by the embodiment of the first aspect to obtain a test report.

With reference to a possible implementation manner of the embodiment of the second aspect, before the testing the cable modem under test by using the method provided in the embodiment of the first aspect, the method further includes: determining that the PC terminal and the tested cable modem are both normally connected with a frequency spectrograph; correspondingly, the method for testing the tested cable modem by using the embodiment of the first aspect includes: the tested cable modem is tested by the method provided in combination with the first or second possible implementation manner of the embodiment of the first aspect.

In a third aspect, an embodiment of the present application further provides an automatic testing apparatus, which is applied to a PC terminal, where the PC terminal is connected to a tested Cable modem, and a mixed test signal including a MoCA signal with specified frequency and maximum power, a Cable signal with specified frequency band range and minimum power is input to a receiving end of the tested Cable modem, where the apparatus includes: the device comprises a parameter acquisition module, a first sending module, a first receiving module, a test result acquisition module and a generation module; a parameter obtaining module, configured to respond to a test operation input by a user, and obtain a test parameter input by the user, where the test parameter includes: start frequency, end frequency, and frequency stepping; a first sending module, configured to sequentially obtain i from 1 to K, and send a first obtaining request for obtaining a signal-to-noise ratio and an error rate of a Cable signal in the mixed test signal received by the tested Cable modem at an i-th central frequency to the tested Cable modem, where the i-th central frequency is equal to the starting frequency plus (i-1) times the frequency step, K is a value obtained by downward rounding a quotient of a and the frequency step, and a is a difference between the termination frequency and the starting frequency; the first receiving module is used for receiving the signal-to-noise ratio and the bit error rate of the Cable signal returned by the tested Cable modem in response to the first acquisition request under the ith central frequency; a test result obtaining module, configured to obtain a test result at the ith central frequency according to the bit error rate at the ith central frequency; and the generating module is used for generating a test report based on the ith central frequency, and the signal-to-noise ratio, the bit error rate and the test result under the ith central frequency.

In a fourth aspect, an embodiment of the present application further provides a PC terminal, where the PC terminal is connected to a tested Cable modem, and a mixed test signal including a MoCA signal with specified frequency and maximum power, and a Cable signal with specified frequency band range and minimum power is input to a receiving end of the tested Cable modem; the PC terminal includes: a memory for storing a program; a processor configured to invoke a program stored in the memory to perform the method of the first aspect embodiment and/or any possible implementation manner of the first aspect embodiment.

In a fifth aspect, an embodiment of the present application further provides an automated testing system, including: the system comprises a PC terminal and a spectrometer, wherein the PC terminal is respectively connected with a tested Cable modem and the spectrometer, the spectrometer is connected with the tested Cable modem, and a mixed test signal containing a MoCA signal with specified frequency and maximum power, a Cable signal with a specified frequency band range and minimum power is input at the receiving end of the tested Cable modem; the PC terminal is used for responding to the test operation input by the user and acquiring the test parameters input by the user, wherein the test parameters comprise: start frequency, end frequency, and frequency stepping; the PC terminal is further used for sequentially obtaining the i from 1 to K, sending a first obtaining request for obtaining the signal-to-noise ratio and the bit error rate of a Cable signal in the mixed test signal received by the tested Cable modem under the ith central frequency to the tested Cable modem, and sending a second obtaining request for obtaining the signal power of the Cable signal received by the tested Cable modem under the ith central frequency to the spectrum analyzer; wherein the ith center frequency is equal to the starting frequency plus (i-1) times the frequency step, K is a value rounded down by the quotient of A and the frequency step, and A is the difference between the ending frequency and the starting frequency; the PC terminal is also used for receiving the signal-to-noise ratio and the bit error rate of the Cable signal returned by the tested Cable modem in response to the first acquisition request under the ith central frequency; receiving the signal power of a Cable signal received by the tested Cable modem and acquired by the frequency spectrograph in response to the second acquisition request under the ith central frequency; the PC terminal is further used for obtaining a test result under the ith central frequency according to the error rate under the ith central frequency; and the PC terminal is also used for generating a test report based on the ith central frequency, and the signal-to-noise ratio, the bit error rate, the test result and the signal power under the ith central frequency.

In a sixth aspect, an embodiment of the present application further provides a storage medium, where the storage medium stores a computer program, and the computer program is executed by a computer to perform the method in the foregoing first aspect and/or in combination with any one of the possible implementation manners of the foregoing first aspect.

Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the embodiments of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts. The foregoing and other objects, features and advantages of the application will be apparent from the accompanying drawings. Like reference numerals refer to like parts throughout the drawings. The drawings are not intended to be to scale as practical, emphasis instead being placed upon illustrating the subject matter of the present application.

Fig. 1 shows a schematic flowchart of an automated testing method according to an embodiment of the present application.

Fig. 2 is a schematic flow chart illustrating another automated testing method provided in the embodiment of the present application.

Fig. 3 is a schematic flow chart illustrating another automated testing method provided in the embodiment of the present application.

Fig. 4 shows a block diagram of an automated testing device according to an embodiment of the present application.

Fig. 5 shows a schematic structural diagram of a PC terminal according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, relational terms such as "first," "second," and the like may be used solely in the description herein to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Further, the term "and/or" in the present application is only one kind of association relationship describing the associated object, and means that three kinds of relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone.

First embodiment

For the problem that Cable signals in coaxial cables are interfered by MoCA signals, the present application designs a testing method capable of automatically testing the interference of MoCA signals on a tested Cable modem, please refer to fig. 1, which is an automated testing method provided by the embodiments of the present application, and the following will describe the steps included in the method with reference to fig. 1. During testing, a tester connects the tested Cable modem with a PC terminal, and inputs a mixed test signal containing a MoCA signal with specified frequency and maximum power, a Cable signal with specified frequency band range and minimum power to the tested Cable modem.

Step S101: and responding to the test operation input by the user, and acquiring the test parameters input by the user.

During testing, the setting of the tester in the automatic testing software of the PC terminal comprises the following steps: and starting frequency, ending frequency and frequency stepping test parameters, and running the software, so that the PC terminal can respond to the test operation input by the user and acquire the test parameters input by the user.

It should be noted that the specific frequency and the maximum power in the MoCA signal with the specific frequency and the maximum power are determined by the device performance of the MoCA signal generator, the frequencies and the maximum powers supported by different MoCA signal generators are different, and the maximum power refers to the maximum power that can be supported by the current MoCA signal generator. For example, a MoCA signal is generated specifying a frequency of 1400MHz and a maximum power of 51 dBmV. Similarly, the range of the specified frequency band in the Cable signal with the specified frequency band range and the minimum power covers the range from the start frequency to the end frequency, for example, the start frequency is 111-1215MHz, and the range of the specified frequency band should cover the range of 111-1215 MHz. The minimum power also depends on the device performance of the Cable signal generator, the minimum power supported by different Cable signal generators is different, and the minimum power refers to the minimum power that can be supported by the current Cable signal generator. For example, a Cable signal is generated that specifies a band range of 111-1215MHz with a minimum power of-13 dBmV. In the embodiment of the application, the MoCA with the maximum power and the Cable signal with the minimum power are used for testing the anti-interference capability of the Cable modem to be tested on the MoCA signals under extreme conditions.

Step S102: and sequentially taking the i from 1 to K, and sending a first acquisition request for acquiring the signal-to-noise ratio and the bit error rate of a Cable signal in the mixed test signals received by the tested Cable modem under the ith central frequency to the tested Cable modem.

After the PC terminal responds to the test operation input by the user and obtains the test parameters input by the user, the PC terminal sequentially takes from 1 to K, and sends a first obtaining request for obtaining a Signal-to-Noise Ratio (SNR) and a Bit Error Rate (BER) of a Cable Signal in the mixed test signals received by the tested Cable modem at the ith central frequency to the tested Cable modem, that is, the PC terminal sends K times a first obtaining request for obtaining the SNR and the BER of the Cable Signal in the mixed test signals received by the tested Cable modem at the specified central frequency. Further, the PC terminal sends a first acquisition request for acquiring the signal-to-noise ratio and the bit error rate of the Cable signal under the 1 st central frequency in the mixed test signals received by the tested Cable modem to the tested Cable modem, and after receiving the signal-to-noise ratio and the bit error rate of the Cable signal under the 1 st central frequency returned by the tested Cable modem in response to the 1 st first acquisition request, the PC terminal obtains the test result under the 1 st central frequency according to the bit error rate under the 1 st central frequency and generates a test report according to the 1 st central frequency, the signal-to-noise ratio, the bit error rate and the test result under the 1 st central frequency; the PC terminal sends a first acquisition request for acquiring the signal-to-noise ratio and the bit error rate of the Cable signal under the 2 nd central frequency in the mixed test signal received by the tested Cable modem to the tested Cable modem again, and after receiving the signal-to-noise ratio and the bit error rate of the Cable signal under the 2 nd central frequency returned by the tested Cable modem responding to the 2 nd first acquisition request, the PC terminal obtains the test result under the 2 nd central frequency according to the bit error rate under the 2 nd central frequency and generates a test report according to the 2 nd central frequency and the signal-to-noise ratio, the bit error rate and the test result under the 2 nd central frequency; and the PC terminal sends a first acquisition request for acquiring the signal-to-noise ratio and the bit error rate of the Cable signal of the mixed test signals received by the tested Cable modem under the 3 rd central frequency again to the tested Cable modem, and so on until a test report corresponding to the Kth first acquisition request is obtained.

Wherein the ith center frequency is equal to the starting frequency plus (i-1) times the frequency step, and K is a quotient of A and the frequency step rounded downThe resulting value, a, is the difference between the end frequency and the start frequency. It is formulated as follows, i being the ith center frequency ═ start frequency + (i-1) times the frequency steps, i taking 1 to K in the order, i.e., the 1 st center frequency ═ start frequency, the 2 nd center frequency ═ start frequency + frequency steps, the 3 rd center frequency ═ start frequency +2 times the frequency steps, the 4 th center frequency ═ start frequency +3 times the frequency steps … … the K th center frequency ═ start frequency + (K-1) times the frequency steps. Wherein the content of the first and second substances,

the resulting quotient is rounded down to a value, e.g., a quotient of a and the frequency step of 20.1, then the rounding down is 20, and e.g., a quotient of a and the frequency step of 19.9, then the rounding down is 19, otherwise this is not illustrated.

Step S103: and receiving the signal-to-noise ratio and the bit error rate of the Cable signal returned by the tested Cable modem in response to the first acquisition request under the ith central frequency.

After the PC terminal sends a first acquisition request for acquiring the signal-to-noise ratio and the bit error rate of the Cable signal under the ith central frequency in the mixed test signal received by the tested Cable modem to the tested Cable modem, the tested Cable modem locks the frequency to the specified central frequency, namely locks the frequency under the specified central frequency, analyzes and acquires the signal-to-noise ratio and the bit error rate of the Cable signal under the specified frequency in the received mixed test signal, and feeds back the signal-to-noise ratio and the bit error rate of the acquired Cable signal under the ith central frequency to the PC terminal.

Step S104: and obtaining a test result under the ith central frequency according to the error rate under the ith central frequency.

After receiving the signal-to-noise ratio and the bit error rate of a Cable signal returned by the tested Cable modem in response to the first acquisition request at the ith central frequency, the PC terminal obtains a test result at the ith central frequency according to the bit error rate at the ith central frequency, for example, by judging whether the bit error rate is constantly equal to zero, if BER is equal to 0, the test result is PASS, and if BER is equal to 0, the test result is fail.

Step S105: and generating a test report based on the ith central frequency, the signal-to-noise ratio under the ith central frequency, the bit error rate and the test result.

After obtaining the test result under the ith central frequency, the PC terminal generates a test report based on the ith central frequency, the signal-to-noise ratio, the bit error rate and the test result under the ith central frequency, and stores the generated test report under a specified path. Wherein, the test report can be presented in a table form. Through the test report, the performance of the tested cable modem can be known through testing the anti-interference capability of the tested cable modem on the MoCA signal.

For convenience of understanding the above test process, the following description will be made with reference to a specific example, assuming that the starting frequency is 111MHz, the terminating frequency is 1215MHz, and the frequency step is 6MHz, then K is 184, that is, the PC terminal sends 184 times of first acquisition requests to the tested Cable modem, that is, the 1 st time of the first acquisition request is to acquire the signal-to-noise ratio and the bit error rate of the Cable signal in the mixed test signal received by the tested Cable modem at the specified central frequency of 111 MHz; the 2 nd first obtaining request is to obtain the signal to noise ratio and the bit error rate of the Cable signals in the mixed test signals received by the tested Cable modem under the appointed central frequency of 117MHz, the 3 rd first obtaining request is to obtain the signal to noise ratio and the bit error rate of the Cable signals in the mixed test signals received by the tested Cable modem under the appointed central frequency of 123MHz, … …, the 183 th first obtaining request is to obtain the signal to noise ratio and the bit error rate of the Cable signals in the mixed test signals received by the tested Cable modem under the appointed central frequency of 1209MHz, and the 184 th first obtaining request is to obtain the signal to noise ratio and the bit error rate of the Cable signals in the mixed test signals received by the tested Cable modem under the appointed central frequency of 1215 MHz. Similarly, the PC terminal may also receive the signal-to-noise ratio and the bit error rate of the Cable signal returned by the tested Cable modem in response to each first acquisition request at the designated center frequency, which are 184 times in total, and may also obtain the test result at each designated center frequency, which is 184 times in total, and the test report of the lifetime may be referred to as shown in table 1.

TABLE 1

Center frequency	Signal-to-noise ratio (SNR)	Bit Error Rate (BER)	Test results
				111	37.06	0	PASS
117	37.02	0	PASS
				123	39.98	0	PASS
…
				1209	17.42	0	PASS
1215	18.54	0	PASS

Considering that some cable modems can support different filter frequency bands, in order to facilitate testing the strength of the interference resistance of the cable modems to the MoCA signals under different filter frequency bands, as an alternative embodiment, in the testing, the parameter of the filter frequency band may be further taken into consideration, that is, the test parameter input by the user further includes the filter frequency band, and when the test parameter further includes: when the filter is in a frequency band, before sequentially taking i from 1 to K, and sending a first acquisition request for acquiring the signal-to-noise ratio and the bit error rate of a Cable signal received by the tested Cable modem under the ith central frequency to the tested Cable modem, the method further comprises the following steps: and setting the tested cable modem according to the frequency band of the filter, so that the tested cable modem works under the appointed frequency band of the filter. For example, cable modems currently in the mainstream can support two filter bands, such as one filter band of 5-82MHz and another filter band of 5-204 MHz. If a user wants to test the anti-interference capability of the filter frequency band 5-204MHz of the tested cable modem to the MoCA signal, the test parameter is set, the filter frequency band 5-204MHz is selected, the PC terminal responds to the test operation input by the user to obtain the test parameter input by the user, and after the filter frequency band (5-204MHz) is obtained, the tested cable modem is set according to the filter frequency band (5-204MHz), so that the tested cable modem works under the filter frequency band (5-204 MHz).

Second embodiment

In order to facilitate the testing of the signal power of the Cable signal in the mixed test signal received by the tested Cable modem, as an implementation manner, a frequency spectrograph connected to the tested Cable modem and the PC terminal respectively may be further used to obtain the signal power of the Cable signal received by the tested Cable modem. Correspondingly, when the PC terminal and the cable modem under test are further connected to a spectrometer, as shown in fig. 2, after the test parameters input by the user are obtained in response to the test operation input by the user, the method further includes: the PC terminal sends a second acquisition request for acquiring the signal power of the Cable signal received by the tested Cable modem under the ith central frequency to the frequency spectrograph; and the PC terminal receives the signal power of the Cable signal received by the tested Cable modem under the ith central frequency, which is acquired by the frequency spectrograph in response to the second acquisition request. That is, in this embodiment, the PC terminal not only sends a first acquisition request for acquiring the signal-to-noise ratio and the bit error rate of the Cable signal in the mixed test signal received by the Cable modem under test at the ith central frequency to the Cable modem under test, but also sends a second acquisition request for acquiring the signal power of the Cable signal received by the Cable modem under test at the ith central frequency to the spectrometer, and similarly, the PC terminal receives the signal-to-noise ratio and the bit error rate of the Cable signal returned by the Cable modem under test in response to the first acquisition request at the ith central frequency, and also receives the signal power of the Cable signal received by the Cable modem under test at the ith central frequency, which is acquired by the spectrometer in response to the second acquisition request.

The process of sending, by the PC terminal, a first acquisition request for acquiring the signal-to-noise ratio and the bit error rate of the Cable signal at the ith central frequency in the mixed test signal received by the Cable modem to the Cable modem, and receiving the signal-to-noise ratio and the bit error rate of the Cable signal at the ith central frequency returned by the Cable modem in response to the first acquisition request is described in detail above, and is not redundant here. A second acquisition request for acquiring the signal power of the Cable signal received by the tested Cable modem under the ith central frequency is sent to the frequency spectrograph by the PC terminal; and a process that the PC terminal receives the signal power of the Cable signal received by the tested Cable modem and acquired by the frequency spectrograph in response to the second acquisition request under the ith central frequency is explained, wherein the process is similar to the process of acquiring the signal-to-noise ratio and the error rate, namely the PC terminal sends the second acquisition request with the specified central frequency to the frequency spectrograph for K times, and correspondingly, the PC terminal also receives the signal power returned by the frequency spectrograph for each second acquisition request for K times. For convenience of understanding, the above example is also taken as an example, that is, the 1 st second acquisition request is to acquire the signal power of the Cable signal received by the measured Cable modem at the specified central frequency of 111MHz, the 2 nd second acquisition request is to acquire the signal power of the Cable signal received by the measured Cable modem at the specified central frequency of 117MHz, the 3 rd second acquisition request is to acquire the signal power of the Cable signal received by the measured Cable modem at the specified central frequency of 123MHz, … …, the 183 th second acquisition request is to acquire the signal power of the Cable signal received by the measured Cable modem at the specified central frequency of 1209MHz, and the 184 th second acquisition request is to acquire the signal power of the Cable signal received by the measured Cable modem at the specified central frequency of 1215 MHz. Accordingly, the PC terminal receives 184 times the signal power returned by the spectrometer for each second acquisition request.

Correspondingly, at this time, a test report is generated based on the ith center frequency, and the signal-to-noise ratio, the bit error rate and the test result under the ith center frequency, and the test report includes: and generating a test report based on the ith central frequency, the signal-to-noise ratio under the ith central frequency, the bit error rate, the test result and the signal power. That is, in this embodiment, the testing includes also including the signal power at the corresponding center frequency. For ease of understanding, the test report finally generated at this time can be referred to table 2.

TABLE 2

In order to improve the accuracy and reliability of the signal power acquired by the spectrum analyzer, as an optional implementation manner, before sending a second acquisition request for acquiring the signal power of the Cable signal received by the Cable modem at the ith center frequency to the spectrum analyzer, the method further includes: initializing the frequency spectrograph, and setting parameters of the frequency spectrograph based on preset parameters. The PC terminal initializes the frequency spectrograph according to the initialization instruction, and sets parameters of the frequency spectrograph based on preset parameters, wherein if the impedance of the frequency spectrograph is set to be 75 ohms, the unit of power is dBmV, the external attenuation value is 5.7dB, and the test mode is power test.

Aiming at the problem that a Cable signal in a coaxial Cable is interfered by an MoCA signal, the application designs a test method capable of automatically testing the interference of the MoCA signal on a tested Cable modem, a tester only needs to connect a mixed test signal containing the MoCA signal with specified frequency and maximum power, the Cable signal with specified frequency band range and minimum power to the tested Cable modem, test parameters such as initial frequency, final frequency and frequency stepping, or initial frequency, final frequency, frequency stepping and filter frequency band are set in automatic test software of a PC terminal, then the software is operated, the test of signal-to-noise ratio, error rate, signal power and the like in the set frequency range can be automatically finished, and test data are automatically recorded to generate a test report.

Third embodiment

Referring to fig. 3, steps included in an automated testing method provided in an embodiment of the present application will be described with reference to fig. 3.

Step S201: and determining that the PC terminal is normally connected with the tested cable modem.

The normal connection of the PC terminal and the tested cable modem is a precondition for obtaining test data, so that the normal connection of the PC terminal and the tested cable modem is determined firstly during testing.

Step S202: and inputting a mixed test signal containing a MoCA signal with specified frequency and maximum power and a Cable signal with specified frequency band range and minimum power into the tested Cable modem.

To test the strength of the anti-interference capability of the tested Cable modem to the MoCA signal, a mixed test signal containing the MoCA signal and the Cable signal needs to be input to the tested Cable modem.

In one embodiment, the Cable modem to be tested may be connected to the MoCA signal generator and the Cable signal generator through a combiner. The combiner is used for transmitting the MoCA signal with the specified frequency and the maximum power generated by the MoCA signal generator and the Cable signal with the specified frequency band range and the minimum power generated by the Cable signal generator to the tested Cable modem.

Step S203: and testing the tested cable modem by using the automatic testing method provided by the first embodiment to obtain a test report.

The automatic test method provided by the first embodiment is used for testing the tested cable modem, and the test parameters required by the test are set in the automatic test software of the PC terminal, and the software is operated, so that a test report can be obtained.

In order to facilitate the testing of the signal power of the Cable signal in the mixed test signal received by the tested Cable modem, as an implementation manner, a frequency spectrograph connected to the tested Cable modem and the PC terminal respectively may be further used to obtain the signal power of the Cable signal received by the tested Cable modem. Correspondingly, when the PC terminal and the cable modem under test are also connected to a spectrometer, before testing the cable modem under test, the method further comprises: and determining that the PC terminal and the tested cable modem are both normally connected with the frequency spectrograph, and testing after determining that the PC terminal and the tested cable modem are both normally connected with the frequency spectrograph, wherein at the moment, when the tested cable modem is tested, correspondingly, the tested cable modem is tested by using the automatic testing method provided by the second embodiment to obtain a test report.

Fourth embodiment

An automated testing device 100 provided by the embodiment of the present application is shown in fig. 4. The automatic testing device 200 is applied to a PC terminal, the PC terminal is connected with a tested Cable modem, and a mixed testing signal containing a MoCA signal with specified frequency and maximum power and a Cable signal with specified frequency band range and minimum power is input to a receiving end of the tested Cable modem. The automated test equipment 100 includes: the device comprises a parameter obtaining module 110, a first sending module 120, a first receiving module 130, a test result obtaining module 140 and a generating module 150.

A parameter obtaining module 110, configured to respond to a test operation input by a user, and obtain test parameters input by the user, where the test parameters include: start frequency, end frequency, and frequency step.

The first sending module 120 is configured to sequentially obtain i from 1 to K, and send a first obtaining request for obtaining a signal-to-noise ratio and an error rate of a Cable signal in the mixed test signal received by the tested Cable modem at an ith central frequency to the tested Cable modem, where the ith central frequency is equal to the starting frequency plus (i-1) times the frequency step, K is a value obtained by rounding down a quotient of a and the frequency step, and a is a difference between the termination frequency and the starting frequency.

The first receiving module 130 is configured to receive a signal-to-noise ratio and an error rate of the Cable signal returned by the detected Cable modem in response to the first acquisition request at an ith central frequency.

A test result obtaining module 140, configured to obtain a test result at the ith central frequency according to the error rate at the ith central frequency.

A generating module 150, configured to generate a test report based on the ith center frequency, and the signal-to-noise ratio, the bit error rate, and the test result at the ith center frequency.

Optionally, when the PC terminal and the tested cable modem are further connected to a spectrometer, the automated testing apparatus 100 further includes: a second sending module and a second receiving module.

The second sending module is configured to send a second obtaining request for obtaining signal power of a Cable signal received by the tested Cable modem at the ith central frequency to the spectrum analyzer after the parameter obtaining module 110 obtains the test parameter input by the user in response to the test operation input by the user.

And the second receiving module is used for receiving the signal power of the Cable signal received by the tested Cable modem, acquired by the frequency spectrograph in response to the second acquisition request, under the ith central frequency. At this time, the generating module 150 is further configured to generate a test report based on the ith center frequency, and the signal-to-noise ratio, the bit error rate, the test result, and the signal power at the ith center frequency.

Optionally, the automated testing device 100 further comprises: and the first setting module is used for initializing the frequency spectrograph and setting parameters of the frequency spectrograph based on preset parameters before the second sending module sends a second obtaining request for obtaining the signal power of the Cable signal received by the tested Cable modem under the ith central frequency to the frequency spectrograph.

The test parameters further comprise: when the frequency band is filtered, optionally, the automatic testing apparatus 100 further includes: and the second setting module is used for sequentially taking the i from 1 to K at the first sending module 120, and setting the tested Cable modem according to the frequency band of the filter before sending a first obtaining request for obtaining the signal-to-noise ratio and the bit error rate of the Cable signal in the mixed test signal received by the tested Cable modem under the ith central frequency to the tested Cable modem, so that the tested Cable modem works under the frequency band of the filter.

The implementation principle and the resulting technical effect of the automated testing apparatus 100 provided in the embodiment of the present application are the same as those of the foregoing method embodiment, and for the sake of brief description, no mention may be made in the embodiment of the apparatus, and reference may be made to the corresponding contents in the foregoing method embodiment.

Fifth embodiment

The embodiment of the present application further provides a PC terminal 200, and as shown in fig. 5, fig. 5 shows a block diagram of a structure of the PC terminal 200 provided in the embodiment of the present application. The PC terminal 200 includes: a transceiver 210, a memory 220, a communication bus 230, and a processor 240.

The elements of the transceiver 210, the memory 220, and the processor 240 are electrically connected to each other directly or indirectly to achieve data transmission or interaction. For example, the components may be electrically coupled to each other via one or more communication buses 230 or signal lines. The transceiver 210 is used for transceiving data. The memory 220 is used for storing a computer program, such as the software functional module shown in fig. 4, i.e., the automatic test device 100. The automatic test device 100 includes at least one software function module, which may be stored in the memory 220 in the form of software or firmware (firmware) or fixed in an Operating System (OS) of the PC terminal 200. The processor 240 is configured to execute an executable module stored in the memory 220, such as a software function module or a computer program included in the automatic test device 100. For example, the processor 240 is configured to obtain a test parameter input by a user in response to a test operation input by the user, where the test parameter includes: start frequency, end frequency, and frequency stepping; and the first acquisition request is used for sequentially taking i from 1 to K, and sending a first acquisition request for acquiring the signal-to-noise ratio and the bit error rate of a Cable signal in the mixed test signal received by the tested Cable modem under the ith central frequency, wherein the ith central frequency is equal to the starting frequency plus (i-1) times of the frequency step, K is a numerical value obtained by downward rounding a quotient of A and the frequency step, and A is a difference value between the termination frequency and the starting frequency; the signal-to-noise ratio and the bit error rate of the Cable signal returned by the tested Cable modem in response to the first acquisition request under the ith central frequency are also received; and the test result under the ith central frequency is obtained according to the error rate under the ith central frequency; and the test report is generated based on the ith central frequency, the signal-to-noise ratio under the ith central frequency, the bit error rate and the test result.

The Memory 220 may be, but is not limited to, a Random Access Memory (RAM), a Read Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Read-Only Memory (EPROM), an electrically Erasable Read-Only Memory (EEPROM), and the like.

The processor 240 may be an integrated circuit chip having signal processing capabilities. The Processor may be a general-purpose Processor, including a Central Processing Unit (CPU), a NetworK Processor (NP), and the like; but also Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor 240 may be any conventional processor or the like.

Sixth embodiment

The embodiment of the application provides an automatic test system, including: the PC terminal 200 and the spectrometer described above. The PC terminal 200 is respectively connected with the tested Cable modem and the frequency spectrograph, the frequency spectrograph is connected with the tested Cable modem, and a mixed test signal containing a MoCA signal with specified frequency and maximum power, a Cable signal with specified frequency band range and minimum power is input to the receiving end of the tested Cable modem. The PC terminal 200 is configured to respond to a test operation input by a user and obtain a test parameter input by the user, where the test parameter includes: start frequency, end frequency, and frequency stepping; the PC terminal 200 is further configured to sequentially obtain i from 1 to K, send a first obtaining request for obtaining a signal-to-noise ratio and an error rate of a Cable signal in the mixed test signal received by the tested Cable modem at an ith central frequency to the tested Cable modem, and send a second obtaining request for obtaining a signal power of the Cable signal received by the tested Cable modem at the ith central frequency to the spectrometer; wherein the ith center frequency is equal to the starting frequency plus (i-1) times the frequency step, K is a value rounded down by the quotient of A and the frequency step, and A is the difference between the ending frequency and the starting frequency; the PC terminal 200 is further configured to receive a signal-to-noise ratio and an error rate of the Cable signal returned by the detected Cable modem in response to the first acquisition request at an ith central frequency; receiving the signal power of a Cable signal received by the tested Cable modem and acquired by the frequency spectrograph in response to the second acquisition request under the ith central frequency; the PC terminal 200 is further configured to obtain a test result at the ith central frequency according to the error rate at the ith central frequency; the PC terminal 200 is further configured to generate a test report based on the ith central frequency, and the signal-to-noise ratio, the bit error rate, the test result, and the signal power at the ith central frequency.

And the frequency spectrograph is used for responding to the second acquisition request and acquiring the signal power of the Cable signal received by the tested Cable modem under the ith central frequency.

Seventh embodiment

The present embodiment further provides a non-volatile computer-readable storage medium (hereinafter, referred to as a storage medium), where the storage medium stores a computer program, and when the computer program is run by a computer such as the PC terminal 200, the computer program executes the steps included in the automated testing method according to the first embodiment or the second embodiment.

It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method can be implemented in other ways. The apparatus embodiments described above are merely illustrative, and for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

In addition, functional modules in the embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.

The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a notebook computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An automatic test method is characterized in that the method is applied to a PC terminal, the PC terminal is connected with a tested Cable modem, a mixed test signal containing a MoCA signal with specified frequency and maximum power, a Cable signal with specified frequency band range and minimum power is input to a receiving end of the tested Cable modem, and the method comprises the following steps:

responding to the test operation input by the user, and acquiring the test parameters input by the user, wherein the test parameters comprise: start frequency, end frequency, and frequency stepping;

sequentially taking i from 1 to K, and sending a first acquisition request for acquiring the signal-to-noise ratio and the bit error rate of a Cable signal in the mixed test signal received by the tested Cable modem under the ith central frequency to the tested Cable modem, wherein the ith central frequency is equal to the starting frequency plus (i-1) times of the frequency step, K is a numerical value obtained by downward rounding a quotient of A and the frequency step, and A is a difference value of the termination frequency and the starting frequency;

receiving the signal-to-noise ratio and the bit error rate of the Cable signal returned by the tested Cable modem in response to the first acquisition request under the ith central frequency;

obtaining a test result under the ith central frequency according to the error rate under the ith central frequency;

and generating a test report based on the ith central frequency, the signal-to-noise ratio under the ith central frequency, the bit error rate and the test result.

2. The method of claim 1, wherein the PC terminal and the cable modem under test are further connected to a spectrometer; after the test parameters input by the user are obtained in response to the test operation input by the user, the method further comprises the following steps:

sending a second acquisition request for acquiring the signal power of the Cable signal received by the tested Cable modem under the ith central frequency to the frequency spectrograph;

receiving the signal power of a Cable signal received by the tested Cable modem under the ith central frequency, which is acquired by the frequency spectrograph in response to the second acquisition request;

correspondingly, generating a test report based on the ith central frequency, and the signal-to-noise ratio, the bit error rate and the test result under the ith central frequency, wherein the test report comprises:

and generating a test report based on the ith central frequency, and the signal-to-noise ratio, the bit error rate, the test result and the signal power under the ith central frequency.

3. The method according to claim 2, wherein before sending a second acquisition request to the spectrometer for acquiring the signal power of the Cable signal received by the Cable modem under test at the ith center frequency, the method further comprises:

initializing the frequency spectrograph, and setting parameters of the frequency spectrograph based on preset parameters.

4. The method of claim 1, wherein the test parameters further comprise: the method comprises the following steps that a filter frequency band is selected, i is sequentially selected from 1 to K, and before a first acquisition request for acquiring the signal-to-noise ratio and the bit error rate of a Cable signal received by a tested Cable modem under the ith central frequency is sent to the tested Cable modem, the method further comprises the following steps:

and setting the tested cable modem according to the frequency band of the filter, so that the tested cable modem works under the frequency band of the filter.

5. An automated testing method, comprising:

determining that the PC terminal is normally connected with the tested cable modem;

inputting a mixed test signal containing a MoCA signal with specified frequency and maximum power and a Cable signal with specified frequency band range and minimum power to the tested Cable modem;

the method of claim 1, wherein the cable modem under test is tested to obtain a test report.

6. The method of claim 5, wherein prior to testing the cable modem under test using the method of claim 1, the method further comprises:

determining that the PC terminal and the tested cable modem are both normally connected with a frequency spectrograph;

accordingly, testing the tested cable modem using the method of claim 1, comprising:

testing the tested cable modem using the method of claim 2 or 3.

7. The utility model provides an automatic testing arrangement, contains in the PC terminal, the PC terminal is connected with the Cable modem that is surveyed, the receiving terminal input of Cable modem that is surveyed has one to contain the MoCA signal and the mixed test signal of Cable signal of appointed frequency and maximum power and appointed frequency band range and minimum power, the device includes:

a parameter obtaining module, configured to respond to a test operation input by a user, and obtain a test parameter input by the user, where the test parameter includes: start frequency, end frequency, and frequency stepping;

a first sending module, configured to sequentially obtain i from 1 to K, and send a first obtaining request for obtaining a signal-to-noise ratio and an error rate of a Cable signal in the mixed test signal received by the tested Cable modem at an i-th central frequency to the tested Cable modem, where the i-th central frequency is equal to the starting frequency plus (i-1) times the frequency step, K is a value obtained by downward rounding a quotient of a and the frequency step, and a is a difference between the termination frequency and the starting frequency;

the first receiving module is used for receiving the signal-to-noise ratio and the bit error rate of the Cable signal returned by the tested Cable modem in response to the first acquisition request under the ith central frequency;

a test result obtaining module, configured to obtain a test result at the ith central frequency according to the bit error rate at the ith central frequency;

and the generating module is used for generating a test report based on the ith central frequency, and the signal-to-noise ratio, the bit error rate and the test result under the ith central frequency.

8. A PC terminal is characterized in that the PC terminal is connected with a tested Cable modem, and a mixed test signal containing a MoCA signal with specified frequency and maximum power and a Cable signal with specified frequency band range and minimum power is input at the receiving end of the tested Cable modem; the PC terminal includes:

a memory for storing a program;

a processor for invoking a program stored in the memory to perform the method of any one of claims 1-4.

9. An automated test system, comprising: the system comprises a PC terminal and a spectrometer, wherein the PC terminal is respectively connected with a tested Cable modem and the spectrometer, the spectrometer is connected with the tested Cable modem, and a mixed test signal containing a MoCA signal with specified frequency and maximum power, a Cable signal with a specified frequency band range and minimum power is input at the receiving end of the tested Cable modem;

the PC terminal is used for responding to the test operation input by the user and acquiring the test parameters input by the user, wherein the test parameters comprise: start frequency, end frequency, and frequency stepping;

the PC terminal is further used for sequentially obtaining the i from 1 to K, sending a first obtaining request for obtaining the signal-to-noise ratio and the bit error rate of a Cable signal in the mixed test signal received by the tested Cable modem under the ith central frequency to the tested Cable modem, and sending a second obtaining request for obtaining the signal power of the Cable signal received by the tested Cable modem under the ith central frequency to the spectrum analyzer; wherein the ith center frequency is equal to the starting frequency plus (i-1) times the frequency step, K is a value rounded down by the quotient of A and the frequency step, and A is the difference between the ending frequency and the starting frequency;

the PC terminal is also used for receiving the signal-to-noise ratio and the bit error rate of the Cable signal returned by the tested Cable modem in response to the first acquisition request under the ith central frequency; receiving the signal power of a Cable signal received by the tested Cable modem and acquired by the frequency spectrograph in response to the second acquisition request under the ith central frequency;

the PC terminal is further used for obtaining a test result under the ith central frequency according to the error rate under the ith central frequency;

and the PC terminal is also used for generating a test report based on the ith central frequency, and the signal-to-noise ratio, the bit error rate, the test result and the signal power under the ith central frequency.

10. A storage medium, characterized in that the storage medium stores a computer program which, when executed by a computer, performs the method according to any one of claims 1-4.