CN114415095A - Automatic testing method, device, medium and electronic equipment for MOCA equipment - Google Patents
Automatic testing method, device, medium and electronic equipment for MOCA equipment Download PDFInfo
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Abstract
The invention discloses an automatic testing method, device, medium and electronic equipment for MOCA equipment, wherein a testing system is initialized and set in a state that an instrument and a product are communicated; calculating a corresponding compensation loss value under the state of obtaining a preset frequency value to be tested; performing a control test on the compensation loss value to form a special test signal value; the special test signal value and/or the basic test signal value is output. According to the automatic testing method, device, medium and electronic equipment for the MOCA equipment, the calibration workload when a large number of points are tested is reduced, the automation degree is high, the labor cost is reduced, and the consistency of the testing result is guaranteed.
Description
Technical Field
The invention relates to the technical field of automatic testing, in particular to an automatic testing method, device, medium and electronic equipment for MOCA equipment.
Background
The testing tools provided by various chip manufacturers are generally used for testing in the current industry, and the testing platforms cannot meet the testing requirements of various chip manufacturers and models, are poor in consistency and involve more platforms for installation. Some automatic test methods are introduced, but they do not include all test items in MOCA technical indexes, and meanwhile, the automatic test methods are not compatible with all chip schemes, in the test process, it often involves testing compensation loss values, and the conventional loss compensation is implemented by instrument calibration, for example, to test the following MOCA indexes under these frequencies, it is necessary to calibrate the loss corresponding to each frequency on a network analyzer: 1200MHz, 1250MHz, 1300MHz, 1350MHz. The workload is large when dozens of groups or even hundreds of groups of compensation loss values are tested, and the operation is frequent and the error is easy to occur when the measurement result is derived.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an automatic test method for MOCA equipment, which solves the problems of large workload and low automation degree when the conventional automatic test method for MOCA equipment is used for testing a compensation loss value.
In order to achieve the purpose, the invention is realized by the following technical scheme:
in a first aspect, an embodiment of the present invention provides an automatic testing method for MOCA devices, including,
initializing and setting a test system in a state that the instrument and the product establish communication;
calculating a corresponding compensation loss value under the state of obtaining a preset frequency value to be tested;
performing a control test on the compensation loss value to form a special test signal value;
the special test signal value and/or the basic test signal value is output.
Preferably, the calculating of the corresponding compensation loss value in the state of obtaining the predetermined frequency value to be tested specifically comprises,
obtaining standard compensation loss values corresponding to at least 3 frequency values to be tested under the action of a network analyzer;
determining a function model of a standard compensation loss value according to the frequency value to be tested and the corresponding standard compensation loss value;
and calculating compensation loss values corresponding to the other frequency values to be tested according to the function model of the standard compensation loss value.
Preferably, the control test is performed on the compensation loss value to form a special test signal value, specifically including obtaining the compensation loss value corresponding to the tested frequency value;
calculating a corresponding special test signal value according to a compensation loss value corresponding to the tested frequency value, wherein the special test signal value comprises a transmitting power and a receiving minimum sensitivity value;
and outputting a transmitting power value and a receiving minimum sensitivity value.
Preferably, the special test signal values and/or the basic test signal values are output, including in particular,
traversing special test signal values and/or basic test signal values to be output by a tree structure method under the state of establishing a corresponding new test item list;
writing special test signal values and/or basic test signal values to be output into a new test item list to form a first matrix;
and performing transpose transformation on the first matrix to form a second matrix output.
In a second aspect, an embodiment of the present invention provides an automatic testing apparatus for MOCA equipment, including,
the initialization unit is used for initializing the test system in a state that the instrument and the product establish communication;
the compensation unit is used for calculating a corresponding compensation loss value under the state of acquiring a preset frequency value to be tested;
the control unit is used for performing control test on the compensation loss value to form a special test signal value;
an output unit for outputting the special test signal value and/or the basic test signal value.
Preferably, the compensation module comprises a plurality of compensation modules,
the function preprocessing module is used for acquiring standard compensation loss values corresponding to at least 3 frequency values to be tested under the action of the network analyzer; determining a function model of a standard compensation loss value according to the frequency value to be tested and the corresponding standard compensation loss value; and calculating compensation loss values corresponding to the other frequency values to be tested according to the function model of the standard compensation loss value.
In a third aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the MOCA device automation testing method as described above.
In a fourth aspect, an embodiment of the present invention provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor executes the computer program to implement the above-mentioned method for automatically testing MOCA devices in the electronic device.
The invention has the following beneficial effects:
a small number of characteristic frequency values are calibrated through collection, a linear regression model of line loss compensation loss is obtained in a curve fitting mode, compensation loss values corresponding to points to be tested are calculated, calibration workload when a large number of points are tested is reduced, the automation degree is high, excessive manual intervention is not needed, the consistency of test results is guaranteed, the method is suitable for batch testing, and labor cost is reduced. By adopting a deep traversal algorithm of the tree structure, the method is flexible and time-saving.
Drawings
Fig. 1 is a flowchart of an automatic testing method for MOCA devices according to an embodiment of the present invention;
fig. 2 is an algorithm diagram of an automatic testing method for an MOCA device according to an embodiment of the present invention;
fig. 3 is a diagram of an automatic testing apparatus for MOCA devices according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an electronic device according to a fourth embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: the automatic testing method of the MOCA equipment comprises the following steps,
s110, initializing a test system in a state that the instrument and the product establish communication;
in this embodiment, the communication between the meter and the product is established and initialized, specifically, whether a folder for storing log and report files exists under the root directory of the program is determined first, if yes, the folder is ignored, or the files in the folder are cleared before the test starts each time through setting parameters, otherwise, log and result folders are automatically created newly.
S120, calculating a corresponding compensation loss value under the state of obtaining a preset frequency value to be tested;
in the embodiment, a standard compensation loss value corresponding to at least 3 frequency values to be tested is obtained under the action of a network analyzer; determining a function model of a standard compensation loss value according to the frequency value to be tested and the corresponding standard compensation loss value; and calculating compensation loss values corresponding to the other frequency values to be tested according to the function model of the standard compensation loss value. For example, obtaining the MOCA indexes corresponding to a series of frequencies supposed to be tested, such as 400MHz, 450MHz … 1200MHz, 1250MHz, 1300MHz, 1350MHz.. 1675MHz, etc., some characteristic frequency values may be selected from the beginning, middle, and end of a series of points, assuming that the characteristic frequency value is x1,x2,x3...xmCalibrating a compensation loss value of the environment on the network analyzer according to the characteristic frequency value, wherein the compensation loss value is y1,y2,y3...ymThese x, y values are filled into the line loss file in the common component module.
The model y, kx + b (k, b coefficients) from which the fitting function can be determined is derived using a least squares method. And x is a frequency point to be tested, the value of x needs to be filled in a configuration file in advance, the value of x in the configuration file is called through a code, y can be solved through an algorithm, the y is a compensation loss value corresponding to the frequency point, and the compensation loss value is arranged in an instrument control module in the control module for testing.
The principle of the least squares method involved in this embodiment is as follows,
objective function ═ Σ (observed-theoretical value) 2
And (3) observation value: multiple sets of samples
Theoretical value: fitting function
An objective function: loss function
To minimize the objective function.
The basic idea is as follows,
f(x)＝a1φ1(x)+a2φ2(x)+...+amφm(x)
wherein phi isk(x) Is a pre-selected set of linearly independent functions, akIs the undetermined coefficient (k ═ 1,2,3.. m), the objective of the least squares method is to find a set of akSuch that:
The characteristic frequency value and the compensation loss value selected in the embodiment form a series of paired data (x) in the environment calibrated on the network analyzer1,y1),(x2,y2)…(xm,ym) The data are plotted in an x-y rectangular coordinate system, and if the points are found to be near a straight line, the equation for the straight line can be expressed as:
y-kx + b (formula 1-1)
Wherein: k, b are any real number.
To establish the linear equation, k and b are determined, and the measured value y is measured by applying the least square principleiAnd use of (formula)1-1) calculating the dispersion (y) of the value (y ═ kx + b)iY) sum of squares [ ∑ (y)i-y)2]The minimum is the "optimization criterion".
Let phi ═ sigma (y)i-y)2(formula 1-2)
Substituting (formula 1-1) into (formula 1-2) to obtain:
φ＝∑(yi-b-kxi)2(formulae 1 to 3)
When ∑ (y)i-y)2At a minimum, the partial derivatives of k, b can be calculated with a function φ, making these two partial derivatives equal to zero.
Two equations with unknowns for k and b are obtained, and the two equations are solved to obtain:
b can be obtained by a undetermined coefficient method.
The coefficients k and b can be found and the fitting equation can be determined.
S130, performing control test on the compensation loss value to form a special test signal value;
in the embodiment, a compensation loss value corresponding to a tested frequency value is obtained; calculating a corresponding special test signal value according to a compensation loss value corresponding to the tested frequency value, wherein the special test signal value comprises a transmitting power and a receiving minimum sensitivity value; the special test signal value also comprises test items such as central frequency deviation, emission spectrum templates, in-band spurs, out-of-band spurs and the like.
And S140, outputting the special test signal value and/or the basic test signal value.
In the embodiment, a special test signal value and/or a basic test signal value to be output is traversed by a tree structure method in a state of establishing a corresponding new test item list; the special signal values comprise test items such as emission power, minimum sensitivity value, central frequency offset, emission spectrum template, in-band spurious, out-of-band spurious and the like, the basic test signal values comprise IP values of MOCA and the like, and the special test signal values and/or the basic test signal values to be output are written into a new test item list to form a first matrix; and performing transpose transformation on the first matrix to form a second matrix output.
For example, before traversal begins, a csv file is opened, a header is written, storage is performed, and the file is closed.
An empty list is created for each test item in the title before traversal begins. After the traversal starts, the data obtained by the test is written into the corresponding empty list once per traversal, such as power output signals, MASK signals, in-band spurious signals, out-of-band spurious signals, frequency offset values and the like.
After traversing, merging the data lists of all the test items into a new list1 according to the sequence from left to right in the title; converting the new list1 into a matrix 1; the matrix1 is converted into a new matrix2 by a transpose algorithm of the matrix.
Finally, the csv file written with the title before is opened, the matrix2 is written into the csv report file in a new row below the csv file, the csv report file is stored, and the file is closed.
The logic has the advantages that the csv file is only required to be opened, written, stored and closed twice, so that frequent operation is avoided, time is saved, and the error probability is avoided.
In this embodiment, a depth-first traversal algorithm under a tree structure is adopted, and fig. 2 is an algorithm schematic diagram of the tree structure.
m: mode, root node;
m1, m 2: two forms of mode. mode1& mode2, left and right subtrees, respectively;
c01, c00, c 10: chain01, chain00, chain 10. Three forms of chain;
f1,f2…fn：frequency1,frequency2,frequencyn；
the traversal order is: a root node, a left sub-tree and a right sub-tree, namely m-m1-c01-f1-f2- … fn-c00-f1-f2- … fn-c10-f1-f2- … fn-m2-c01-f1-f2- … fn-c00-f1-f2- … fn.
There are three subtrees below m1, and the subtrees below each chain are also ambiguous, so the traversal below from this level cannot be called root node-left subtree-right subtree. The sequence of chain can be unordered and the sequence of frequency can be unordered, so if the tree is ordered, the configuration file is rewritten in the common component module by the user, once the filling of mode, chain and frequency in the configuration file is completed, that is, the elements in the configuration file are ordered, and in the logic execution, the execution is traversed according to the ordered tree. The time complexity of the algorithm is O (n) whether starting from m1 or m2, so that the mode, chain and frequency are changed by a user, so that the operation is more flexible.
A linear regression model of line loss compensation is obtained by collecting and calibrating a small number of characteristic frequency values and adopting a curve fitting mode, so that compensation loss values corresponding to points to be tested are calculated, the calibration workload when the points with a large number are tested is reduced, the fitting mode of a least square method enables data to be more accurate, the traditional testing process is optimized by adopting a deep traversal algorithm of a tree structure, matrix transformation is adopted, and only two times of opening, writing, storing and closing of a csv file are needed, so that frequent operation is avoided.
In a schematic way, the flow of the gas is controlled by a control system,
calculating a corresponding compensation loss value under the state of obtaining a preset frequency value to be tested, for example, obtaining an MOCA index corresponding to a series of frequencies such as 400MHz, 450MHz, … 1200MHz, 1250MHz, 1300MHz, 1350MHz, 1675MHz and the like which are supposed to be tested to carry out the calculation of the compensation loss value, averaging as much as possible when selecting the frequency value, and selecting some points from low, medium and high frequency points (before, during and after a series of frequency points to be tested) as characteristic points to carry out the calibration of a standard compensation loss value.
The method comprises the steps of performing control test on a compensation loss value to form a special test signal value, wherein the special test signal value is a test item existing in TX and RX in the MOCA equipment test process, TX belongs to the category of a signal generation unit and is used for testing the quality of a signal transmitted by equipment to be tested, the special test signal value comprises test items of transmission power, central frequency offset, a transmission frequency spectrum template, in-band spurious, out-of-band spurious and the like, the transmission power value is the basis and the premise of TX test, only if the transmission power is ensured to be correct, the most basic index of the TX of the equipment to be tested can be determined to be normal, then other tests in the following process are continued, and otherwise the TX test in the following process is not meaningful.
The RX belongs to a signal analysis unit, and is used for performing analysis test on the quality of a signal received by a device to be tested, such as receiving a minimum sensitivity value.
Fig. 3 is a diagram of an automatic testing apparatus for MOCA devices according to an embodiment of the present invention, in which a logic control unit is mainly called during a testing process, an initialization unit is called in the logic control unit to determine whether a storage folder is empty and to initialize devices to be tested, meters, and the like; calling a control unit of the equipment to be tested in the logic control unit, and controlling the equipment to be tested to configure MOCA test basic parameters; then, calling an instrument control unit, and configuring parameters such as frequency, bandwidth and the like; in the process, a configuration file and an instruction file are used, and a common component unit is required to be called; calling a compensation unit in the logic control unit, and compensating a compensation loss value corresponding to the frequency into the instrument; in the process, a line loss file is needed, and a common component unit is needed to be called; if the test TX is detected, the signal generating unit is called; if it is a test RX, the signal analysis unit is invoked.
And debugging a proper waveform for reading. And calling a report generating unit in the logic control unit, performing corresponding calculation by using the read data, comparing with the specification in the protocol, and judging the result. The data and results are written into a report.
For example, when the transmission power is tested, 5 times of transmission power values are read, the maximum value of the transmission power values is compared with the upper limit value 7dB of the transmission power specified in the protocol, the minimum value of the transmission power values is compared with the lower limit value-1 dB of the transmission power specified in the protocol, and the transmission power is judged to pass only when the maximum value and the minimum value are both between-1 dB and 7 dB. The method for collecting data for multiple times not only can enable the test result to be more accurate, but also can better discover abnormal data.
The instrument control unit and the device to be tested control unit are units for controlling the instrument, the MOCA device and the computer. The logic control unit controls the logic of the whole test system, for example, when the transmission power value is to be tested, the initialization unit is called to do some actions in the logic control unit, then the device control unit to be tested is called, and the instrument control unit is called to do some actions.
Example two
The embodiment of the invention provides an automatic testing device for MOCA equipment, which specifically comprises:
the initialization unit is used for initializing the test system in a state that the instrument and the product establish communication;
the compensation unit is used for calculating a corresponding compensation loss value under the state of acquiring a preset frequency value to be tested;
the control unit is used for performing control test on the compensation loss value to form a special test signal value;
an output unit for outputting the special test signal value and/or the basic test signal value.
The compensation module comprises a compensation module and a compensation module,
the function preprocessing module is used for acquiring standard compensation loss values corresponding to at least 3 frequency values to be tested under the action of the network analyzer; determining a function model of a standard compensation loss value according to the frequency value to be tested and the corresponding standard compensation loss value; and calculating compensation loss values corresponding to the other frequency values to be tested according to the function model of the standard compensation loss value.
The initialization unit initializes the test system in the state that the instrument and the product are communicated, the compensation unit acquires and calibrates a small number of characteristic frequency values, a linear regression model of line loss compensation is obtained by adopting a curve fitting mode, thereby calculating the compensation loss value corresponding to the point to be tested, reducing the calibration workload when testing a plurality of points, and the fitting mode of the least square method enables data to be more accurate, the control unit controls and tests the compensation loss value to form a special test signal value, the output unit outputs the special test signal value and/or a basic test signal value, the whole automatic system adopts a tree-structured deep layer traversal algorithm, the traditional test flow is optimized, matrix transformation is adopted, the output unit only needs to open, write, store and close the csv file twice, and frequent operation is avoided.
EXAMPLE III
Embodiments of the present application also provide a storage medium containing computer-executable instructions, which when executed by a computer processor, are configured to perform:
initializing and setting a test system in a state that the instrument and the product establish communication;
calculating a corresponding compensation loss value under the state of obtaining a preset frequency value to be tested;
performing a control test on the compensation loss value to form a special test signal value;
the special test signal value and/or the basic test signal value is output.
Obtaining standard compensation loss values corresponding to at least 3 frequency values to be tested under the action of a network analyzer; determining a function model of a standard compensation loss value according to the frequency value to be tested and the corresponding standard compensation loss value; and calculating compensation loss values corresponding to the other frequency values to be tested according to the function model of the standard compensation loss value.
Storage medium-any of various types of memory devices or storage devices. The term "storage medium" is intended to include: mounting media such as CD-ROM, floppy disk, or tape devices; computer system memory or random access memory such as DRAM, DDR RAM, SRAM, EDO RAM, Lanbas (Rambus) RAM, etc.; non-volatile memory such as flash memory, magnetic media (e.g., hard disk or optical storage); registers or other similar types of memory elements, etc. The storage medium may also include other types of memory or combinations thereof. In addition, the storage medium may be located in the computer system in which the program is executed, or may be located in a different second computer system connected to the computer system through a network (such as the internet). The second computer system may provide the program instructions to the computer for execution. The term "storage medium" may include two or more storage media that may reside in different locations, such as in different computer systems that are connected by a network. The storage medium may store program instructions (e.g., embodied as a computer program) that are executable by one or more processors.
Of course, the storage medium provided in the embodiments of the present application contains computer-executable instructions, and the computer-executable instructions are not limited to the above-described MOCA device automated testing method, and may also perform related operations in the MOCA device automated testing method provided in any embodiment of the present application.
Example four
The embodiment of the application provides electronic equipment, and the automatic testing device of the MOCA equipment provided by the embodiment of the application can be integrated in the electronic equipment. Fig. 4 is a schematic structural diagram of an electronic device according to a fourth embodiment of the present application. As shown in fig. 4, the present embodiment provides an electronic device 400, which includes: one or more processors 420; storage 410 to store one or more programs that, when executed by the one or more processors 420, cause the one or more processors 420 to implement:
initializing and setting a test system in a state that the instrument and the product establish communication;
calculating a corresponding compensation loss value under the state of obtaining a preset frequency value to be tested;
performing a control test on the compensation loss value to form a special test signal value;
the special test signal value and/or the basic test signal value is output.
Obtaining standard compensation loss values corresponding to at least 3 frequency values to be tested under the action of a network analyzer; determining a function model of a standard compensation loss value according to the frequency value to be tested and the corresponding standard compensation loss value; and calculating compensation loss values corresponding to the other frequency values to be tested according to the function model of the standard compensation loss value.
As shown in fig. 4, the electronic device 400 includes a processor 420, a storage device 410, an input device 430, and an output device 440; the number of the processors 420 in the electronic device may be one or more, and one processor 420 is taken as an example in fig. 4; the processor 420, the storage device 410, the input device 430, and the output device 440 in the electronic apparatus may be connected by a bus or other means, and are exemplified by a bus 450 in fig. 4.
The storage device 410 is a computer-readable storage medium, and can be used to store software programs, computer-executable programs, and module units, such as program instructions corresponding to the automatic testing method of MOCA equipment in the embodiment of the present application.
The storage device 410 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the storage 410 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, storage 410 may further include memory located remotely from processor 420, which may be connected via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input means 430 may be used to receive input numbers, character information, or voice information, and to generate key signal inputs related to user settings and function control of the electronic device. The output device 440 may include a display screen, speakers, etc.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (8)
1. An automatic testing method for MOCA equipment is characterized by comprising the following steps,
initializing and setting a test system in a state that the instrument and the product establish communication;
calculating a corresponding compensation loss value under the state of obtaining a preset frequency value to be tested;
performing a control test on the compensation loss value to form a special test signal value;
the special test signal value and/or the basic test signal value is output.
2. The automatic testing method of MOCA device as claimed in claim 1, wherein calculating the corresponding compensation loss value under the condition of obtaining the predetermined frequency value to be tested, specifically comprises,
obtaining standard compensation loss values corresponding to at least 3 frequency values to be tested under the action of a network analyzer;
determining a function model of a standard compensation loss value according to the frequency value to be tested and the corresponding standard compensation loss value;
and calculating compensation loss values corresponding to the other frequency values to be tested according to the function model of the standard compensation loss value.
3. The automatic testing method of MOCA equipment according to claim 1, wherein the control test is performed on the compensation loss value to form a special test signal value, specifically comprising,
acquiring a compensation loss value corresponding to the tested frequency value;
calculating a corresponding special test signal value according to a compensation loss value corresponding to the tested frequency value, wherein the special test signal value comprises a transmitting power and a receiving minimum sensitivity value;
and outputting a transmitting power value and a receiving minimum sensitivity value.
4. The automatic test method of MOCA device according to claim 1, wherein the special test signal value and/or the basic test signal value are outputted, specifically comprising,
traversing special test signal values and/or basic test signal values to be output by a tree structure method under the state of establishing a corresponding new test item list;
writing special test signal values and/or basic test signal values to be output into a new test item list to form a first matrix;
and performing transpose transformation on the first matrix to form a second matrix output.
5. An automatic testing device for MOCA equipment is characterized by comprising,
the initialization unit is used for initializing the test system in a state that the instrument and the product establish communication;
the compensation unit is used for calculating a corresponding compensation loss value under the state of acquiring a preset frequency value to be tested;
the control unit is used for performing control test on the compensation loss value to form a special test signal value;
an output unit for outputting the special test signal value and/or the basic test signal value.
6. The automatic testing device of MOCA equipment as claimed in claim 5, wherein the compensation module comprises,
the function preprocessing module is used for acquiring standard compensation loss values corresponding to at least 3 frequency values to be tested under the action of the network analyzer; determining a function model of a standard compensation loss value according to the frequency value to be tested and the corresponding standard compensation loss value; and calculating compensation loss values corresponding to the other frequency values to be tested according to the function model of the standard compensation loss value.
7. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out a method for automated testing of a MOCA device according to any of claims 1 to 4.
8. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method for automated testing of MOCA devices according to any of claims 1 to 4 when executing the computer program.
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