CN116318468A - Determination method, test equipment and test system for cable qualification - Google Patents

Abstract

The embodiment of the application provides a cable qualification determining method, testing equipment and testing system, wherein the method comprises the following steps: transmitting a first sequence to a cable to be tested, wherein the first sequence comprises a plurality of first numbers; receiving a second sequence from the cable to be tested, wherein the second sequence comprises a plurality of second numbers, and the second numbers correspond to the first numbers one by one; determining a first error rate according to the first sequence and the second sequence, wherein the first error rate is the ratio of a first number to a second number, the first number is the number of first target digits, the first target digits are second digits meeting a first preset condition in the second sequence, the first preset condition is that the second digits are identical to the corresponding first digits, and the second number is the number of the first digits in the first sequence; and under the condition that the first error rate is in the error range, determining that the cable to be tested is qualified. The problem that the accuracy of the cable data transmission cannot be determined in the prior art is solved, and the effect of screening out the cable with high accuracy of the data transmission is achieved.

Description

Determination method, test equipment and test system for cable qualification

technical field

The embodiments of the present application relate to the technical field of cables, and in particular, relate to a method for determining the qualification of cables, testing equipment, a computer-readable storage medium, and a testing system.

Background technique

At present, cable manufacturers only conduct sampling inspections on a small number of cables before mass shipments. The inspection method is generally to use a vector network analyzer to perform passive tests on cables, and passive tests can only achieve S The measurement of parameters, cable impedance and cable loss, but the measurement of cable reliability (determining the accuracy of cable data transmission) cannot be realized.

Contents of the invention

Embodiments of the present application provide a method for determining cable qualification, testing equipment, a computer-readable storage medium, and a testing system, so as to at least solve the problem in the related art that the accuracy of cable data transmission cannot be determined in the prior art.

According to one embodiment of the present application, a method for determining the qualification of a cable is provided. The output end of the test device is connected to one end of the cable to be tested by communication, and the input end of the test device is connected to the end of the cable to be tested. The other end is connected by communication, the method for determining the eligibility of the cable is applied to the test equipment, and the method for determining includes: sending a first sequence to the cable to be tested, the first sequence including a plurality of first digital numbers , the first number is 0 or 1; receiving the second sequence from the cable under test, the second sequence includes a plurality of second numbers, the second number is 0 or 1, the second The number corresponds to the first number one by one; according to the first sequence and the second sequence, a first bit error rate is determined, and the first bit error rate is the ratio of the first number to the second number, so The first number is the number of the first target number, the first target number is the second number in the second sequence that satisfies the first preset condition, and the first preset condition is the first The second code is the same as the corresponding first code, and the second number is the number of the first code in the first sequence; when the first bit error rate is within the error range, Determine that the cable to be tested is qualified.

In an exemplary embodiment, before determining that the cable to be tested is qualified, the method includes: sending the first sequence to a plurality of qualified cables respectively, each of the qualified cables has the same model, and the The model of the qualified cable is the same as the model of the cable to be tested; the third sequence from each of the qualified cables is received, the third sequence includes a plurality of third numbers, and the third number is 0 or 1. The third sequence is in one-to-one correspondence with the first sequence, and the third number is in one-to-one correspondence with the first number; according to each of the first sequences and the corresponding third sequence, determine how many a second bit error rate, the second bit error rate is in one-to-one correspondence with the third sequence, the second bit error rate is the ratio of the third number to the fourth number, and the third number is the second The number of target numbers, the second target number is the third number that satisfies a second preset condition in the third sequence corresponding to the second bit error rate, and the second preset condition is The third number is the same as the corresponding first number, and the fourth number is the number of the first number in the first sequence corresponding to the second bit error rate; according to all The second bit error rate determines the error range, the upper limit of the error range is the largest second bit error rate, and the lower limit of the error range is the smallest second bit error rate .

In an exemplary embodiment, the method further includes: sending a preset number of the first sequences to each of the cables to be tested, and each of the first sequences is the same; The second sequence of the cable, the second sequence is in one-to-one correspondence with the first sequence; according to the first sequence and the corresponding second sequence, a plurality of the first bit error rates are determined, so The first bit error rate is in one-to-one correspondence with the first sequence; when each of the first bit error rates is within the error range, it is determined that the cable to be tested is qualified.

In an exemplary embodiment, the method further includes: sending multiple first sequences to the cable under test, any two of the first sequences are different from each other; The fifth sequence, the fifth sequence includes a plurality of fifth numbers, the fifth number is 0 or 1, the fifth sequence corresponds to the first sequence one by one, the fifth number and the One-to-one correspondence of the first numbers; according to each of the first sequence and the fifth sequence, a plurality of fourth bit error rates are determined, the fourth bit error rates are in one-to-one correspondence with the fifth sequence, and the fourth bit error rates are in one-to-one correspondence with the fifth sequence. Four bit error rates are the ratio of the seventh number to the eighth number, the seventh number is the number of the fourth target number, and the fourth target number is the fifth corresponding to the fourth bit error rate The fifth number in the sequence that satisfies the fourth preset condition, the fourth preset condition is that the fifth number is the same as the corresponding first number, and the eighth number is the same as the fourth number. The number of the first codes in the first sequence corresponding to the bit rate; if each of the fourth bit error rates is within the error range, it is determined that the cable to be tested is qualified.

In an exemplary embodiment, the cable to be tested has a first serial number, and the testing device is communicatively connected to the display screen. After determining that the cable to be tested is qualified, the method further includes: A serial number and the first bit error rate are output to the display screen.

In an exemplary embodiment, the cable to be tested includes a plurality of data channels, and the method includes: sending the first sequence to each of the data channels; receiving a fourth sequence from each of the data channels , the fourth sequence includes a plurality of fourth numbers, the fourth number is 0 or 1, the fourth sequence corresponds to the first sequence one by one, and the fourth number is one to the first number One-to-one correspondence; according to each of the first sequences and the corresponding fourth sequences, determine a plurality of third bit error rates, the third bit error rates are in one-to-one correspondence with the fourth sequences, and the third error rates The code rate is the ratio of the fifth number to the sixth number, the fifth number is the number of the third target number, and the third target number is in the fourth sequence corresponding to the third bit error rate The fourth number that satisfies a third preset condition, the third preset condition is that the fourth number is the same as the corresponding first number, and the sixth number is the same as the third bit error rate Corresponding to the number of the first digital numbers in the first sequence; if each of the third bit error rates is within the error range, it is determined that the cable to be tested is qualified.

In an exemplary embodiment, one of the data channels has a second number, the test equipment is connected to the display screen in communication, and after determining that the cable to be tested is qualified, the method further includes: connecting each of the The second number and the third bit error rate corresponding to each second number are output to the display screen.

According to another embodiment of the present application, a test device is provided, the output end of the test device is communicatively connected to one end of the cable under test, and the input end of the test device is communicatively connected to the other end of the cable under test , the test equipment includes: a first sending module, configured to send a first sequence to the cable under test, the first sequence includes a plurality of first numbers, and the first numbers are 0 or 1; the first A receiving module, configured to receive a second sequence from the cable under test, the second sequence includes a plurality of second numbers, the second numbers are 0 or 1, and the second numbers are the same as the first One-to-one digital correspondence; the first determination module is used to determine a first bit error rate according to the first sequence and the second sequence, and the first bit error rate is the ratio of the first number to the second number, The first number is the number of the first target number, the first target number is the second number in the second sequence that satisfies the first preset condition, and the first preset condition is the The second number is the same as the corresponding first number, and the second number is the number of the first number in the first sequence; the second determination module is used for the first bit error rate If it is within the error range, it is determined that the cable to be tested is qualified.

According to yet another embodiment of the present application, a computer-readable storage medium is provided, and a computer program is stored in the computer-readable storage medium, wherein, when the computer program is executed by a processor, any one of the described steps of the method described above.

According to still another embodiment of the present application, a test system is provided, and the test system includes: test equipment, the output end of the test equipment is communicatively connected to one end of the cable to be tested, and the input end of the test equipment is connected to The other end of the cable to be tested is connected in communication, and the test device implements the steps of any one of the methods; a display screen, the display screen is connected in communication with the test device, and the display screen is used to display the test result.

Through this application, the test equipment sends a binary sequence to the cable to be tested and receives a binary sequence from the cable to be tested. According to the two binary sequences, the first bit error rate is determined, because the first bit error rate represents the The accuracy of cable data transmission, when the first bit error rate is within the error range, the accuracy of data transmission of the cable to be tested is determined to be very high, thereby solving the problem that the accuracy of cable data transmission cannot be determined in the prior art The problem of sex is solved, and the effect of screening out the cables with high accuracy of data transmission is achieved.

Description of drawings

Fig. 1 is a flow chart of a method for determining the qualification of a cable according to an embodiment of the present application;

Fig. 2 is a structural block diagram of a testing device according to an embodiment of the present application.

Detailed ways

Embodiments of the present application will be described in detail below with reference to the drawings and in combination with the embodiments.

It should be noted that the terms "first" and "second" in the description and claims of the present application and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence.

In this embodiment, a method for determining the qualification of a cable is provided. The method for determining the qualification of a cable is run on the above-mentioned test equipment, and the output end of the above-mentioned test equipment is connected to one end of the cable to be tested by communication. The above-mentioned test equipment The input end of the above-mentioned cable to be tested is connected in communication with the other end of the cable. Fig. 1 is a flow chart according to the embodiment of the application. As shown in Fig. 1, the process includes the following steps:

Step S102, sending a first sequence to the cable to be tested, the first sequence includes a plurality of first numbers, and the first number is 0 or 1;

Specifically, the above-mentioned first sequence is a PRBS (Pseudo-Random Binary Sequence, pseudo-random binary sequence), and the test device sends a PRBS to the cable to be tested.

Step S104, receiving a second sequence from the cable to be tested, the second sequence includes a plurality of second numbers, the second numbers are 0 or 1, and the second numbers are in one-to-one correspondence with the first numbers.

Specifically, the above-mentioned second sequence is PRBS, and after the testing equipment sends a PRBS to the testing line, the output terminal of the testing equipment receives a PRBS from the testing cable.

Step S106, according to the above-mentioned first sequence and the above-mentioned second sequence, determine a first bit error rate, the above-mentioned first bit error rate is the ratio of the first number to the second number, and the above-mentioned first number is the number of the first target number , the above-mentioned first target number is the above-mentioned second number that satisfies the first preset condition in the above-mentioned second sequence, the above-mentioned first preset condition is that the above-mentioned second number is the same as the corresponding first number, and the above-mentioned second number is the above-mentioned the number of the first digits in the first sequence;

Specifically, the first bit error rate above represents the accuracy of the data transmission of the cable under test, and the lower the first bit error rate, the higher the accuracy of the data transmission of the cable under test and the higher the reliability of the cable under test. If the cable under test can transmit data completely and accurately, the PRBS sent by the test equipment to the cable under test should be the same as the PRBS received from the cable under test by the input terminal of the test equipment, that is, the above-mentioned first BER Should be 0.

Specifically, for example, the PRBS sent by the measuring device to the cable under test is 1011011110, the PRBS received by the input terminal of the measuring device from the cable under test is 1010011110, and the fourth digit of the PRBS is wrongly transmitted. At this time, the bit error The ratio is 10%. It should be noted that, in practice, the number of digits in a PRBS is very large.

Step S108, in the case that the first bit error rate is within the error range, it is determined that the cable to be tested is qualified.

Specifically, the upper limit of the error range is a value close to 0. For example, when the first bit error rate is less than 0.1%, it is determined that the cable to be tested is qualified, so as to ensure that the qualified cable data to be tested is screened out. The accuracy of transmission is very high.

Through the above steps, the test equipment sends a binary sequence to the cable to be tested and receives a binary sequence from the cable to be tested. According to the two binary sequences, the first bit error rate is determined. The first bit error rate represents the cable to be tested. The accuracy of cable data transmission, when the first bit error rate is within the error range, the accuracy of data transmission of the cable to be tested is determined to be very high, which solves the problem that the accuracy of cable data transmission cannot be determined in the prior art question.

Wherein, the execution subject of the above steps may be a [terminal], etc., but is not limited thereto.

In order to screen cables with higher data transmission accuracy, in an optional solution, before the above step S108, the above method further includes:

Sending the above-mentioned first sequence to a plurality of qualified cables respectively, the models of each of the above-mentioned qualified cables are the same, and the models of the above-mentioned qualified cables are the same as the models of the above-mentioned cables to be tested;

Specifically, the number of above-mentioned qualified cables is very large, and the above-mentioned qualified cables are cables that have been used for a long time in actual application scenarios without data transmission errors. Parameters such as length and loss rate are different, and these parameters will affect the accuracy of cable data transmission. Therefore, select qualified cables of the same type to determine the error range for testing the qualification of the cable to be tested.

receiving a third sequence from each of the above-mentioned qualified cables, the above-mentioned third sequence includes a plurality of third numbers, the above-mentioned third number is 0 or 1, the above-mentioned third sequence corresponds to the above-mentioned first sequence one by one, and the above-mentioned third number and The above-mentioned first numbers correspond to each other one by one;

According to each of the above-mentioned first sequences and the corresponding above-mentioned third sequences, a plurality of second bit error rates are determined, the above-mentioned second bit error rates are in one-to-one correspondence with the above-mentioned third sequences, and the third number of the above-mentioned second bit error rates is equal to the first The ratio of four numbers, the third number is the number of the second target number, the second target number is the third number that satisfies the second preset condition in the third sequence corresponding to the second bit error rate, The second preset condition is that the third number is the same as the corresponding first number, and the fourth number is the number of the first number in the first sequence corresponding to the second bit error rate;

The error range is determined according to all the second bit error rates, the upper limit of the error range is the largest second bit error rate, and the lower limit of the error range is the smallest second bit error rate.

In this embodiment, the above-mentioned third sequence is PRBS, and the test equipment sends PRBS to the qualified cable, and receives the PRBS from the qualified cable, and determines the second bit error rate according to the sent and received PRBS, and the second bit error rate represents To ensure the accuracy of data transmission of qualified cables, the error range is determined according to the second bit error rate, that is, the error range is determined according to the accuracy of data transmission that qualified cables can achieve, so as to ensure the accuracy of the error range, so as to achieve the screening out The purpose of the cable is to transmit data with higher accuracy.

It should be noted that there is no limit to the number of first sequences sent by the test equipment to qualified cables, and the more the number of first sequences used, the more accurate the determined error range will be.

In order to screen cables with higher data transmission accuracy, in another optional solution, the above method further includes:

sending a preset number of the above-mentioned first sequences to each of the above-mentioned cables to be tested, and each of the above-mentioned first sequences is the same;

receiving the above-mentioned second sequence from the above-mentioned cable to be tested, where the above-mentioned second sequence corresponds to the above-mentioned first sequence;

Determining a plurality of the first bit error rates according to the first sequence and the corresponding second sequence, where the first bit error rates are in one-to-one correspondence with the first sequence;

When each of the above-mentioned first bit error rates is within the above-mentioned error range, it is determined that the above-mentioned cable to be tested is qualified.

In this embodiment, since the number of numbers contained in a PRBS is limited, the test equipment sends a preset number of PRBS to the cable to be tested, and receives a preset number of PRBS from the cable to be tested, and determines The first bit error rate of the preset number, in the case that the first bit error rate of the preset number is within the error range, it is determined that the cable to be tested is qualified, avoiding accidents, and further confirming the data transmission of the cable to be tested accuracy, so as to achieve the purpose of screening out cables with higher accuracy of data transmission.

In order to screen cables with higher data transmission accuracy, in another optional solution, the above method further includes:

Sending multiple first sequences to the cable under test, any two of the first sequences are different from each other;

Specifically, 10 levels of PRBS are set, and the number of numbers contained in different levels of PRBS is different, and the order of arrangement of the numbers 0 and 1 contained in different levels of PRBS is different. Send PRBS of any class.

receiving a fifth sequence from the cable to be tested, the fifth sequence includes a plurality of fifth numbers, the fifth number is 0 or 1, the fifth sequence corresponds to the first sequence one by one, the fifth number and The above-mentioned first numbers correspond to each other one by one;

According to each of the above-mentioned first sequence and the above-mentioned fifth sequence, a plurality of fourth bit error rates are determined, the above-mentioned fourth bit error rates correspond to the above-mentioned fifth sequence one by one, and the above-mentioned fourth bit error rates are the seventh number and the eighth number The above-mentioned seventh number is the number of the fourth target number, and the above-mentioned fourth target number is the above-mentioned fifth number that satisfies the fourth preset condition in the above-mentioned fifth sequence corresponding to the above-mentioned fourth bit error rate. The fourth preset condition is that the fifth number is the same as the corresponding first number, and the eighth number is the number of the first number in the first sequence corresponding to the fourth bit error rate;

When each of the above-mentioned fourth bit error rates is within the above-mentioned error range, it is determined that the above-mentioned cable to be tested is qualified.

In this embodiment, because in the actual application scenario, it is impossible to send the same binary sequence to the cable under test all the time, in order to be more in line with the actual application scenario, the test equipment sends multiple different PRBS to the cable under test and receives data from the cable under test. According to the PRBS of the test cable, multiple fourth bit error rates are determined according to the transmitted and received PRBS. When each fourth bit error rate is within the error range, it is determined that the cable to be tested is qualified to avoid accidental The accuracy of data transmission of the cable to be tested is further determined, so as to achieve the purpose of screening cables with higher accuracy of data transmission.

It should be noted that the cable to be tested has a first serial number, and the testing device is communicatively connected to the display screen.

In order to visually display the accuracy of the data transmission of the qualified cables to be tested, in an optional solution, after the above step S108, the above method further includes:

Outputting the above-mentioned first serial number and the above-mentioned first bit error rate to the above-mentioned display screen.

In this embodiment, the numbers and bit error rates of qualified cables to be tested are displayed on the display screen, so as to intuitively show the accuracy of data transmission of qualified cables to be tested.

It should be noted that the above-mentioned cable to be tested includes multiple data channels.

In order to determine the accuracy of the data transmission of the data channel of the cable to be tested, in an optional solution, the above method further includes:

Step S202, sending the above-mentioned first sequence to each of the above-mentioned data channels respectively;

Step S204, receiving the fourth sequence from each of the above-mentioned data channels, the above-mentioned fourth sequence includes a plurality of fourth numbers, the above-mentioned fourth number is 0 or 1, the above-mentioned fourth sequence corresponds to the above-mentioned first sequence one by one, and the above-mentioned fourth sequence The numbers correspond one-to-one to the above-mentioned first numbers;

Step S206, according to each of the above-mentioned first sequences and the corresponding above-mentioned fourth sequences, determine a plurality of third bit error rates, the above-mentioned third bit error rates correspond to the above-mentioned fourth sequences one by one, and the above-mentioned third bit error rates are fifth The ratio of the number to the sixth number, the fifth number is the number of the third target number, and the third target number is the first number in the fourth sequence corresponding to the third bit error rate that satisfies the third preset condition. Four digits, the third preset condition is that the fourth digit is the same as the corresponding first digit, and the sixth number is the number of the first digits in the first sequence corresponding to the third bit error rate ;

Step S208, in the case that each of the above-mentioned third bit error rates is within the above-mentioned error range, it is determined that the above-mentioned cable to be tested is qualified.

In this embodiment, the above-mentioned fourth sequence is PRBS. The test equipment sends PRBS to the data channel and receives the PRBS from the data channel. According to the sent and received PRBS, the third bit error rate is determined. The third bit error rate represents the corresponding The accuracy of the data transmission of the data channel of the cable to be tested, thereby determining the accuracy of the data transmission of each data channel of the cable to be tested, and when the third bit error rate is within the error range, determine the data of the cable to be tested The transmission accuracy is very high, and it is determined that the cable to be tested is qualified.

It should be noted that one of the above-mentioned data channels has a second number, and the above-mentioned testing equipment is in communication connection with the display screen.

In order to visually display the accuracy of the data transmission of each data channel of the qualified cable to be tested, in an optional solution, after the above step S208, the above method further includes:

Outputting each of the above-mentioned second numbers and the above-mentioned third bit error rate corresponding to each of the above-mentioned second numbers to the above-mentioned display screen.

In this embodiment, the number and bit error rate of each data channel of the qualified cable to be tested are displayed on the display screen, so as to intuitively display the accuracy of data transmission of each data channel of the qualified cable to be tested.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation. Based on such an understanding, the technical solution of the present application can be embodied in the form of a software product in essence or the part that contributes to the prior art, and the computer software product is stored in a storage medium (such as ROM/RAM, disk, CD) contains several instructions to enable a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to execute the above-mentioned methods in various embodiments of the present application.

In this embodiment, a test device is also provided, which is used to implement the above embodiments and preferred implementation modes, and what has been explained will not be repeated here. As used below, the term "module" may be a combination of software and/or hardware that realizes a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementations in hardware, or a combination of software and hardware are also possible and contemplated.

Fig. 2 is a structural block diagram of the test equipment according to the embodiment of the application, as shown in Fig. 2, the device includes:

The first sending module 22 is configured to send a first sequence to the cable under test, the first sequence includes a plurality of first numbers, and the first number is 0 or 1;

Specifically, the above-mentioned first sequence is a PRBS (Pseudo-Random Binary Sequence, pseudo-random binary sequence), and the test device sends a PRBS to the cable to be tested.

The first receiving module 24 is configured to receive the second sequence from the cable to be tested, the second sequence includes a plurality of second numbers, the second numbers are 0 or 1, and the second numbers are the same as the first numbers One to one correspondence.

Specifically, the above-mentioned second sequence is PRBS, and after the testing equipment sends a PRBS to the testing line, the output terminal of the testing equipment receives a PRBS from the testing cable.

The first determination module 26 is configured to determine a first bit error rate according to the above-mentioned first sequence and the above-mentioned second sequence, the above-mentioned first bit error rate is the ratio of the first number to the second number, and the above-mentioned first number is the first The number of target numbers, the first target number is the second number that satisfies the first preset condition in the second sequence, the first preset condition is that the second number is the same as the corresponding first number, the The second quantity is the number of the above-mentioned first numerals in the above-mentioned first sequence;

Specifically, the first bit error rate above represents the accuracy of the data transmission of the cable under test, and the lower the first bit error rate, the higher the accuracy of the data transmission of the cable under test and the higher the reliability of the cable under test. If the cable under test can transmit data completely and accurately, the PRBS sent by the test equipment to the cable under test should be the same as the PRBS received from the cable under test by the input terminal of the test equipment, that is, the above-mentioned first BER Should be 0.

Specifically, for example, the PRBS sent by the measuring device to the cable under test is 1011011110, the PRBS received by the input terminal of the measuring device from the cable under test is 1010011110, and the fourth digit of the PRBS is wrongly transmitted. At this time, the bit error The ratio is 10%. It should be noted that, in practice, the number of digits in a PRBS is very large.

The second determining module 28 is configured to determine that the cable to be tested is qualified when the first bit error rate is within an error range.

Specifically, the upper limit of the error range is a value close to 0. For example, when the first bit error rate is less than 0.1%, it is determined that the cable to be tested is qualified, so as to ensure that the qualified cable data to be tested is screened out. The accuracy of transmission is very high.

Through the above steps, the test equipment sends a binary sequence to the cable to be tested and receives a binary sequence from the cable to be tested. According to the two binary sequences, the first bit error rate is determined. The first bit error rate represents the cable to be tested. The accuracy of cable data transmission, when the first bit error rate is within the error range, the accuracy of data transmission of the cable to be tested is determined to be very high, which solves the problem that the accuracy of cable data transmission cannot be determined in the prior art question.

Wherein, the execution subject of the above steps may be a [terminal], etc., but is not limited thereto.

In order to screen cables with higher data transmission accuracy, in an optional solution, the above test equipment also includes:

The second sending module is configured to send the above-mentioned first sequence to a plurality of qualified cables respectively, the models of each of the above-mentioned qualified cables are the same, and the models of the above-mentioned qualified cables are the same as the models of the above-mentioned cables to be tested;

Specifically, the number of above-mentioned qualified cables is very large, and the above-mentioned qualified cables are cables that have been used for a long time in actual application scenarios without data transmission errors. Parameters such as length and loss rate are different, and these parameters will affect the accuracy of cable data transmission. Therefore, select qualified cables of the same type to determine the error range for testing the qualification of the cable to be tested.

The second receiving module is used to receive the third sequence from each of the above-mentioned qualified cables, the above-mentioned third sequence includes a plurality of third numbers, the above-mentioned third numbers are 0 or 1, and the above-mentioned third sequence and the above-mentioned first sequence are one by one Correspondingly, the above-mentioned third number is in one-to-one correspondence with the above-mentioned first number;

The third determination module is configured to determine a plurality of second bit error rates according to each of the first sequences and the corresponding third sequences, the second bit error rates correspond to the third sequences one by one, and the second bit error rates The rate is the ratio of the third number to the fourth number, the third number is the number of the second target number, and the second target number is the second preset in the third sequence corresponding to the second bit error rate The above-mentioned third number of the condition, the above-mentioned second preset condition is that the above-mentioned third number is the same as the corresponding first number, and the above-mentioned fourth number is the first number in the first sequence corresponding to the second bit error rate. number of digits;

The fourth determination module is configured to determine the above-mentioned error range according to all the above-mentioned second bit error rates, the upper limit of the above-mentioned error range is the largest above-mentioned second bit error rate, and the lower limit of the above-mentioned error range is the smallest value of the above-mentioned first Two bit error rate.

In this embodiment, the above-mentioned third sequence is PRBS, and the test equipment sends PRBS to the qualified cable, and receives the PRBS from the qualified cable, and determines the second bit error rate according to the sent and received PRBS, and the second bit error rate represents To ensure the accuracy of data transmission of qualified cables, the error range is determined according to the second bit error rate, that is, the error range is determined according to the accuracy of data transmission that qualified cables can achieve, so as to ensure the accuracy of the error range, so as to achieve the screening out The purpose of the cable is to transmit data with higher accuracy.

It should be noted that there is no limit to the number of first sequences sent by the test equipment to qualified cables, and the more the number of first sequences used, the more accurate the determined error range will be.

In order to screen cables with higher data transmission accuracy, in another optional solution, the above test equipment also includes:

The third sending module is configured to send a preset number of the above-mentioned first sequences to each of the above-mentioned cables to be tested, and each of the above-mentioned first sequences is the same;

The third receiving module is configured to receive the above-mentioned second sequence from the above-mentioned cable to be tested, and the above-mentioned second sequence corresponds to the above-mentioned first sequence;

The fifth determination module is configured to determine a plurality of the first bit error rates according to the first sequence and the corresponding second sequence, where the first bit error rates correspond to the first sequences one by one;

The sixth determination module is configured to determine that the cable to be tested is qualified when each of the above-mentioned first bit error rates is within the above-mentioned error range.

In this embodiment, since the number of numbers contained in a PRBS is limited, the test equipment sends a preset number of PRBS to the cable to be tested, and receives a preset number of PRBS from the cable to be tested, and determines The first bit error rate of the preset number, in the case that the first bit error rate of the preset number is within the error range, it is determined that the cable to be tested is qualified, avoiding accidents, and further confirming the data transmission of the cable to be tested accuracy, so as to achieve the purpose of screening out cables with higher accuracy of data transmission.

In order to screen cables with higher accuracy of data transmission, in another optional solution, the above test equipment also includes:

A fourth sending module, configured to send multiple first sequences to the cable to be tested, and any two of the first sequences are different from each other;

Specifically, 10 levels of PRBS are set, and the number of numbers contained in different levels of PRBS is different, and the order of arrangement of the numbers 0 and 1 contained in different levels of PRBS is different. Send PRBS of any class.

The fourth receiving module is used to receive the fifth sequence from the cable to be tested, the fifth sequence includes a plurality of fifth numbers, the fifth number is 0 or 1, and the fifth sequence and the first sequence are one by one Correspondingly, the above-mentioned fifth number corresponds to the above-mentioned first number one by one;

The seventh determination module is configured to determine a plurality of fourth bit error rates according to each of the above-mentioned first sequences and the above-mentioned fifth sequences, the above-mentioned fourth bit-error rates correspond to the above-mentioned fifth sequences one-to-one, and the above-mentioned fourth bit error rates The ratio of the seventh number to the eighth number, the seventh number is the number of the fourth target number, and the fourth target number is the number that satisfies the fourth preset condition in the fifth sequence corresponding to the fourth bit error rate The fifth number, the fourth preset condition is that the fifth number is the same as the corresponding first number, and the eighth number is the number of the first number in the first sequence corresponding to the fourth bit error rate number;

The eighth determination module is configured to determine that the cable to be tested is qualified when each of the above-mentioned fourth bit error rates is within the above-mentioned error range.

In this embodiment, because in the actual application scenario, it is impossible to send the same binary sequence to the cable under test all the time, in order to be more in line with the actual application scenario, the test equipment sends multiple different PRBS to the cable under test and receives data from the cable under test. According to the PRBS of the test cable, multiple fourth bit error rates are determined according to the transmitted and received PRBS. When each fourth bit error rate is within the error range, it is determined that the cable to be tested is qualified to avoid accidental The accuracy of data transmission of the cable to be tested is further determined, so as to achieve the purpose of screening cables with higher accuracy of data transmission.

It should be noted that the cable to be tested has a first serial number, and the testing device is communicatively connected to the display screen.

In order to visually display the accuracy of data transmission of qualified cables to be tested, in an optional solution, the above test equipment also includes:

The first output module is configured to output the above-mentioned first number and the above-mentioned first bit error rate to the above-mentioned display screen.

In this embodiment, the numbers and bit error rates of qualified cables to be tested are displayed on the display screen, so as to intuitively show the accuracy of data transmission of qualified cables to be tested.

It should be noted that the above-mentioned cable to be tested includes multiple data channels.

In order to determine the accuracy of the data transmission of the data channel of the cable to be tested, in an optional solution, the above test equipment also includes:

The fifth sending module is configured to send the above-mentioned first sequence to each of the above-mentioned data channels respectively;

The fifth receiving module is used to receive the fourth sequence from each of the above-mentioned data channels, the above-mentioned fourth sequence includes a plurality of fourth numbers, the above-mentioned fourth numbers are 0 or 1, and the above-mentioned fourth sequence corresponds to the above-mentioned first sequence one by one , the above-mentioned fourth digit corresponds one-to-one to the above-mentioned first digit;

The ninth determination module is configured to determine a plurality of third bit error rates according to each of the above-mentioned first sequences and the corresponding above-mentioned fourth sequences, the above-mentioned third bit-error rates are in one-to-one correspondence with the above-mentioned fourth sequences, and the above-mentioned third bit error rates The rate is the ratio of the fifth number to the sixth number, the fifth number is the number of the third target number, and the third target number is the third preset in the fourth sequence corresponding to the third bit error rate The above-mentioned fourth number of the condition, the above-mentioned third preset condition is that the above-mentioned fourth number is the same as the corresponding first number, and the above-mentioned sixth number is the first number of digits;

The tenth determination module is configured to determine that the cable to be tested is qualified when each of the above-mentioned third bit error rates is within the above-mentioned error range.

In this embodiment, the above-mentioned fourth sequence is PRBS. The test equipment sends PRBS to the data channel and receives the PRBS from the data channel. According to the sent and received PRBS, the third bit error rate is determined. The third bit error rate represents the corresponding The accuracy of the data transmission of the data channel of the cable to be tested, thereby determining the accuracy of the data transmission of each data channel of the cable to be tested, and when the third bit error rate is within the error range, determine the data of the cable to be tested The transmission accuracy is very high, and it is determined that the cable to be tested is qualified.

It should be noted that one of the above-mentioned data channels has a second number, and the above-mentioned testing equipment is in communication connection with the display screen.

In order to visually display the accuracy of data transmission of each data channel of the qualified cable to be tested, in an optional solution, the above test equipment also includes:

The second output module is configured to output each of the above-mentioned second numbers and the above-mentioned third bit error rate corresponding to each of the above-mentioned second numbers to the above-mentioned display screen.

In this embodiment, the number and bit error rate of each data channel of the qualified cable to be tested are displayed on the display screen, so as to intuitively display the accuracy of data transmission of each data channel of the qualified cable to be tested.

It should be noted that the above-mentioned modules can be realized by software or hardware. For the latter, it can be realized by the following methods, but not limited to this: the above-mentioned modules are all located in the same processor; or, the above-mentioned modules can be combined in any combination The forms of are located in different processors.

Embodiments of the present application also provide a computer-readable storage medium, in which a computer program is stored, wherein the computer program is set to execute the steps in any one of the above method embodiments when running.

In an exemplary embodiment, the above-mentioned computer-readable storage medium may include but not limited to: U disk, read-only memory (Read-Only Memory, referred to as ROM), random access memory (Random Access Memory, referred to as RAM) , mobile hard disk, magnetic disk or optical disk and other media that can store computer programs.

The embodiment of the present application also provides a test system, the test system includes: test equipment, the output end of the test equipment is connected to one end of the cable to be tested, the input end of the test equipment is connected to the line to be tested The other end of the cable is connected in communication, and the above-mentioned test equipment implements the steps of any one of the above-mentioned methods; a display screen, the above-mentioned display screen is connected in communication with the above-mentioned test equipment, and the above-mentioned display screen is used to display test results.

In an exemplary embodiment, the above-mentioned test equipment adopts a Retimer mainboard, and the output end of the Retimer mainboard is connected to one end of the ISI compensation board, the other end of the ISI compensation board is connected to one end of the cable fixture plate, and the cable fixture plate The other end of the test cable is connected to one end of the cable to be tested, and the other end of the cable to be tested is connected to the input terminal of the Retimer main board.

For specific examples in this embodiment, reference may be made to the examples described in the foregoing embodiments and exemplary implementation manners, and details will not be repeated here in this embodiment.

Obviously, those skilled in the art should understand that each module or each step of the above-mentioned application can be realized by a general-purpose computing device, and they can be concentrated on a single computing device, or distributed in a network composed of multiple computing devices In fact, they can be implemented in program code executable by a computing device, and thus, they can be stored in a storage device to be executed by a computing device, and in some cases, can be executed in an order different from that shown here. Or described steps, or they are made into individual integrated circuit modules, or multiple modules or steps among them are made into a single integrated circuit module to realize. As such, the present application is not limited to any specific combination of hardware and software.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, there may be various modifications and changes in the present application. Any modifications, equivalent replacements, improvements, etc. made within the principles of this application shall be included within the scope of protection of this application.

Claims (10)

1. A method for determining the qualification of a cable, characterized in that, the output end of the test equipment is connected in communication with one end of the cable to be tested, and the input end of the test equipment is connected in communication with the other end of the cable to be tested , the method for determining the qualification of the cable is applied to the test equipment, and the method for determining includes: Send a first sequence to the cable under test, the first sequence includes a plurality of first numbers, and the first numbers are 0 or 1; Receive a second sequence from the cable to be tested, the second sequence includes a plurality of second numbers, the second numbers are 0 or 1, and the second numbers correspond to the first numbers one by one; According to the first sequence and the second sequence, a first bit error rate is determined, the first bit error rate is the ratio of the first number to the second number, and the first number is the number of the first target number number, the first target number is the second number that satisfies the first preset condition in the second sequence, and the first preset condition is that the second number is the same as the corresponding first number , the second number is the number of the first digits in the first sequence; If the first bit error rate is within an error range, it is determined that the cable to be tested is qualified. 2. The method according to claim 1, wherein, before determining that the cable to be tested is qualified, the method comprises: Sending the first sequence to a plurality of qualified cables respectively, each of the qualified cables has the same model, and the model of the qualified cable is the same as the model of the cable to be tested; receiving a third sequence from each of the qualified cables, the third sequence includes a plurality of third numbers, the third numbers are 0 or 1, and the third sequence is in one-to-one correspondence with the first sequence, The third number is in one-to-one correspondence with the first number; A plurality of second bit error rates are determined according to each of the first sequences and the corresponding third sequences, the second bit error rates are in one-to-one correspondence with the third sequences, and the second bit error rates are The ratio of the third number to the fourth number, the third number is the number of the second target number, and the second target number is in the third sequence corresponding to the second bit error rate that satisfies the second The third number of the preset condition, the second preset condition is that the third number is the same as the corresponding first number, and the fourth number is the corresponding number of the second bit error rate the number of said first digits in said first sequence; The error range is determined according to all the second bit error rates, the upper limit of the error range is the largest second bit error rate, and the lower limit of the error range is the smallest second bit error rate. BER. 3. The method according to claim 1, wherein the method further comprises: sending a preset number of first sequences to each of the cables to be tested, and each of the first sequences is the same; receiving the second sequence from the cable under test, where the second sequence is in one-to-one correspondence with the first sequence; determining a plurality of first bit error rates according to the first sequence and the corresponding second sequence, where the first bit error rates are in one-to-one correspondence with the first sequence; If each of the first bit error rates is within the error range, it is determined that the cable to be tested is qualified. 4. The method according to claim 1, wherein the method further comprises: Sending multiple first sequences to the cable under test, any two of the first sequences are different from each other; receiving a fifth sequence from the cable under test, the fifth sequence includes a plurality of fifth numbers, the fifth number is 0 or 1, and the fifth sequence corresponds to the first sequence one by one, The fifth number corresponds to the first number one by one; According to each of the first sequence and the fifth sequence, a plurality of fourth bit error rates are determined, the fourth bit error rates are in one-to-one correspondence with the fifth sequence, and the fourth bit error rate is the seventh The ratio of the quantity to the eighth quantity, the seventh quantity is the number of the fourth target number, and the fourth target number satisfies the fourth preset in the fifth sequence corresponding to the fourth bit error rate The fifth number of the condition, the fourth preset condition is that the fifth number is the same as the corresponding first number, and the eighth number is the first number corresponding to the fourth bit error rate the number of said first digits in a sequence; In a case where each of the fourth bit error rates is within the error range, it is determined that the cable to be tested is qualified. 5. The method according to any one of claims 1 to 4, wherein the cable to be tested has a first serial number, the testing device is connected to the display screen in communication, and the cable to be tested is determined to be qualified Afterwards, the method also includes: Outputting the first serial number and the first bit error rate to the display screen. 6. The method according to claim 1, wherein the cable to be tested comprises a plurality of data channels, and the method comprises: sending the first sequence to each of the data channels respectively; receiving a fourth sequence from each of the data channels, the fourth sequence includes a plurality of fourth numbers, the fourth number is 0 or 1, and the fourth sequence corresponds to the first sequence one by one, so The fourth number corresponds to the first number one by one; A plurality of third bit error rates are determined according to each of the first sequences and the corresponding fourth sequences, the third bit error rates are in one-to-one correspondence with the fourth sequences, and the third bit error rates are The ratio of the fifth number to the sixth number, the fifth number is the number of the third target number, and the third target number satisfies the third target number in the fourth sequence corresponding to the third bit error rate. The fourth number of the preset condition, the third preset condition is that the fourth number is the same as the corresponding first number, and the sixth number is the corresponding number of the third bit error rate the number of said first digits in said first sequence; In a case where each of the third bit error rates is within the error range, it is determined that the cable to be tested is qualified. 7. The method according to claim 6, wherein one said data channel has a second number, said test equipment is connected to the display screen in communication, after determining that said cable to be tested is qualified, said method Also includes: Outputting each of the second numbers and the third bit error rate corresponding to each of the second numbers to the display screen. 8. A testing device, characterized in that, the output end of the testing device is communicatively connected to one end of the cable to be tested, the input end of the testing device is communicatively connected to the other end of the cable to be tested, and the Test equipment includes: A first sending module, configured to send a first sequence to the cable under test, the first sequence includes a plurality of first numbers, and the first numbers are 0 or 1; The first receiving module is configured to receive a second sequence from the cable under test, the second sequence includes a plurality of second numbers, the second numbers are 0 or 1, and the second numbers are the same as the One-to-one correspondence of the first digits; A first determining module, configured to determine a first bit error rate according to the first sequence and the second sequence, the first bit error rate is a ratio of a first number to a second number, and the first number is the number of the first target number, the first target number is the second number in the second sequence that satisfies the first preset condition, and the first preset condition is that the second number and the corresponding The first numbers are the same, and the second number is the number of the first numbers in the first sequence; The second determination module is configured to determine that the cable to be tested is qualified when the first bit error rate is within an error range. 9. A computer-readable storage medium, characterized in that, a computer program is stored in the computer-readable storage medium, wherein when the computer program is executed by a processor, any one of claims 1 to 7 is implemented. The steps of the method. 10. A test system, characterized in that the test system comprises: Test equipment, the output end of the test equipment is connected in communication with one end of the cable under test, the input end of the test equipment is connected in communication with the other end of the cable under test, and the test equipment realizes the claim 1 to the step of the method described in any one of 7; A display screen, the display screen is in communication connection with the test equipment, and the display screen is used for displaying test results.

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