CN111737930B - Connection relation screening method and device for characteristic values of base plate signals - Google Patents
Connection relation screening method and device for characteristic values of base plate signals Download PDFInfo
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Abstract
A connection relation screening method and equipment aiming at a characteristic value of a base plate signal comprises the steps of setting a base plate signal operator, defining the arrival and departure of a connection according to information on a base plate connection BOM table by adopting a two-dimensional vector method, and converting all connection relations on the connection BOM table into a signal operator form; unifying measurement directions, sorting and screening all Signal operators in a junction line BOM table to form connection relation sets of single-point single lines, single-point double lines, double-point double lines and double-point four lines, wherein each set is used as a branch to form a Signal-Web framework, and adding definition of characteristic values to each Signal operator; according to different characteristic values of the Signal operators and a judgment screening formula, carrying out characteristic compression screening on the content of the Signal-Web frame set, and deleting duplicate detection logarithms; and outputting a new wiring BOM table to finish the screening of the wiring relation of the bottom plate. The invention can cover all the connection relation detection and has high detection efficiency.
Description
Technical Field
The invention belongs to the field of connection of bottom plates of electronic products, and particularly relates to a connection relation screening method and device aiming at characteristic values of bottom plate signals.
Background
After the connection of the bottom plate of the whole electronic product is completed, the correctness of the connection is detected. According to the product quality requirement, the test coverage rate of all wires interconnected with the bottom plate needs to reach 100%. In the prior art, a method of combining test equipment with manual measurement is adopted to carry out traversal measurement on all wires with a wiring relation with a bottom plate on a wiring meter. The existing method has the condition of repeated measurement of a large number of useless connection relations, and wastes huge machine time for products with complex connection relations of the bottom plate. In addition, the existing measurement method based on traversal cannot perform error checking on the line connection relation of single-point double lines, double-point double lines and double-point four lines, and loopholes exist on test coverage of a line fault mode. In summary, the to-be-tested connection relation must be screened, and the traversal algorithm is improved, so as to improve the fault test coverage of the connection relation, shorten the detection time and improve the detection efficiency.
Disclosure of Invention
The invention aims to solve the problems of large workload and loopholes of the connection line test of the bottom plate of the electronic product in the prior art, and provides a connection line relation screening method and device for the characteristic value of the bottom plate signal.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a connection relation screening method aiming at a characteristic value of a bottom plate signal comprises the following steps:
s1, setting a base plate signal operator, defining the arrival and departure of a connection line by adopting a two-dimensional vector method according to information on a base plate connection BOM table, and converting all connection line relations on the connection BOM table into a signal operator form;
unifying measurement directions, sorting and screening all Signal operators in a junction line BOM table to form connection relation sets of single-point single lines, single-point double lines, double-point double lines and double-point four lines, wherein each set is used as a branch to form a Signal-Web framework, and adding definition of characteristic values to each Signal operator;
s2, carrying out feature compression screening on the content of the Signal-Web frame set according to different feature values of the Signal operator and a judgment screening formula, and deleting duplicate detection logarithms; and outputting a new wiring BOM table to finish the screening of the wiring relation of the bottom plate.
Preferably, the signal operator defined by the two-dimensional vector method is in the form of
X in the formula is a connection relation, namely, the position number of a starting end point of the connection relation, and alpha is defined by signals of the starting end; y is the position of a certain connection relation, namely the position number of a termination end point of the connection relation, and beta is the signal definition of the termination end; in conducting the wire connection test, selecting a test direction including from the arrival of the wire to the departure of the wireMaking measurements, and from the whereabouts of the wire to the whereabouts of the wire; when the measurement is made from the departure of the wire to the departure of the wire, the signal operator is in the form +.>
Preferably, the wiring relation on the wiring BOM table is completely converted into a signal operator form by utilizing the macro editing function of office software; the office software comprises EXCEL.
Preferably, in step S1, the signal definition α at the start end is used as a first screening condition, the beginning X of the connection relationship is used as a second screening condition, and the bubbling ordering and dimension reduction algorithm is used to perform bubbling ordering screening on all signal operators in the connection BOM table.
Preferably, each signal operator is shaped as after increasing the eigenvalue
ab is a characteristic value; when the ab takes the value 11, the single-point single line is represented; when the ab value is 12, the single-point multi-line is represented; representing a double-dot double-line when ab takes a value of 22; when ab takes the value 24, the two-point four-wire system is represented.
Preferably, the Signal-Web framework covers all wiring relationships in the backplane wiring BOM table, the collection of which is described as follows:
the feature compression screening adopts Do While circulation, and uses IF Else screening statement to make condition judgment on different signal operators; the judgment and screening formula is as follows:
for the condition in the step [1] which is a single-point single-wire connection condition, feature compression can not be performed any more;
for [2 ]]The condition in (a) is a single-point double-line connection condition, after characteristic compression,
the original two groups of connection relations to be tested on the connection BOM table are compressed into one group, and the test quantity is reduced by half;
for the purpose of
Form connection relation, traversing measurement needs to test alpha 1 X 1 →β 1 Y 1 、α 1 X 1 →
β 2 Y 2 The connection relation between the two is that the resistance value is used as a variable with correct connection relation; but see beta 1 Y 1 、β 2 Y 2 The connection is caused by the existence of misconnection or metal sundries, and the phase is alpha 1 X 1 、β 1 Y 1 、β 2 Y 2 A loop is formed between the three points, the traversal measurement can miss the measurement, and misjudgment of correct connection relation is made; will be filtered by feature compression
Is compressed to +.>
After that, namely beta 1 Y 1 And beta 2 Y 2 Determination of the resistance value between alpha 1 X 1 、β 1 Y 1 、β 2 Y 2 The connection relation between the two; if beta is 1 Y 1 And beta 2 Y 2 Form error loop between them, test current from beta 1 Y 1 Flow direction beta 2 Y 2 The measured resistance value shows negative deviation, and the connection relation shows errors; similarly->
Compressing the original three groups of connection relations to be tested on the connecting BOM table into one group, reducing the number of measurement groups by two thirds, and judging the error connection in the double-point double-line; same reason
The invention also provides a device for screening the connection relation of the characteristic values of the bottom plate signals, which comprises:
the base plate signal operator setting module is used for defining the arrival and departure of the connection line by adopting a two-dimensional vector method according to the information on the base plate connection BOM table and converting the connection line relation on the connection BOM table into a signal operator form;
the Signal operator sequencing and screening module unifies the measurement direction, performs sequencing and screening on all Signal operators in the junction line BOM table to form single-point single-line, single-point double-line, double-point double-line and double-point four-line connection relation sets, wherein each set is used as a branch to form a Signal-Web frame, and adds definition of characteristic values to each Signal operator;
and the feature compression screening module performs feature compression screening on the content of the Signal-Web frame set according to the judgment screening formula and different feature values of the Signal operators, deletes repeated detection logarithms and outputs a new wiring BOM table.
The invention also provides a terminal, which comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor realizes the step of the connection relation screening method aiming at the characteristic value of the base plate signal when executing the computer program.
The invention also provides a computer readable storage medium storing a computer program which when executed by a processor implements the steps of the connection relation screening method for the characteristic values of the base plate signals.
Compared with the prior art, the invention has the following beneficial effects: signal operators are defined according to signal functions. In the algorithm polynomial, the measured connection relation is classified as a distinguishing term of different signals, so that the polynomial item is simplified. The method is suitable for detecting various connection fault forms: and classifying the connecting lines through Signal operators, sorting and screening, and adding characteristic value definition to each Signal operator to form a Signal-Web frame set. And carrying out characteristic compression screening on the contents in the wiring BOM table, and outputting a new wiring BOM table. The number of test groups was reduced from 35% to 4% to varying degrees. Meanwhile, compared with a traversal measurement method, the algorithm covers single-point single-line, single-point double-line, double-point double-line and double-point four-line fault mode detection, improves line fault coverage, shortens detection time and accelerates detection efficiency. The calculation process is simple, and can be used for manual and automatic equipment measurement: the calculation process is simple to operate, the universality of the calculation program is high, the electronic version wiring table can be imported, and the generation of the base plate signal definition operator is automatically completed. The algorithm type is data set calculation and calculation, can be completed by hand calculation, and has good popularization in manual and machine measurement procedures.
Drawings
FIG. 1 is a flowchart of the steps performed in the screening method of the present invention;
FIG. 2 original connection BOM represents intent;
FIG. 3 is a diagram of an example of a single-point single-line, single-point double-line, double-point four-line wiring relationship;
fig. 4Signal-Web framework diagram.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Referring to fig. 1, the connection relation screening method for the characteristic values of the base plate signals of the invention comprises the following steps:
s1, setting a base plate signal operator, defining the arrival and departure of a connection line by adopting a two-dimensional vector method according to information on a base plate connection BOM table, and converting all connection line relations on the connection BOM table into a signal operator form;
the signal operator form defined by the two-dimensional vector method is as follows
X in the formula is a connection relation, namely, the position number of a starting end point of the connection relation, and alpha is defined by signals of the starting end; y is the position of a certain connection relation, namely the position number of a termination end point of the connection relation, and beta is the signal definition of the termination end; selecting a test direction when conducting the connection relation test, wherein the test direction comprises the measurement from the arrival of the connection to the departure of the connection and the measurement from the departure of the connection to the arrival of the connection; when the measurement is made from the departure of the wire to the departure of the wire, the signal operator is in the form +.>
And all the connection relations on the wiring BOM table are converted into signal operator forms by utilizing macro editing functions of office software such as EXCEL and the like.
Based on the converted Signal operators, unifying the measurement directions, sorting and screening all Signal operators in a junction BOM table, taking a Signal definition alpha at a starting end as a first screening condition, taking a junction X of a connection relation as a secondary screening condition, performing bubbling sorting and screening on all Signal operators in the junction BOM table by using a bubbling sorting dimension-reducing algorithm to form connection relation sets of single-point single lines, single-point double lines, double-point double lines and double-point four lines, wherein each set is used as a branch to form a Signal-Web framework, and adding definition of characteristic values to each Signal operator; after each signal operator increases the eigenvalue, the shape is as follows
ab is a characteristic value; when the ab takes the value 11, the single-point single line is represented; when the ab value is 12, the single-point multi-line is represented; representing a double-dot double-line when ab takes a value of 22; when ab takes the value 24, the two-point four-wire system is represented. BeltedThe floor signal operator of the signature is the standard format of the input of the DCBS algorithm. The Signal-Web framework now already covers all the wiring relationships in the backplane wiring BOM table, the set of which is described as follows:
the data processing phase of the DCBS algorithm ends up here.
S2, carrying out feature compression screening on the content of the Signal-Web frame set according to different feature values of the Signal operator and a judgment screening formula, and deleting duplicate detection logarithms; and outputting a new wiring BOM table to finish the screening of the wiring relation of the bottom plate.
The feature compression screening adopts Do While circulation, and uses IF Else screening statement to make condition judgment on different signal operators; the judgment and screening formula is as follows:
for the condition in the step [1] which is a single-point single-wire connection condition, feature compression can not be performed any more;
for [2 ]]The condition in (a) is a single-point double-line connection condition, after characteristic compression,
the original two groups of connection relations to be tested on the connection BOM table are compressed into one group, and the test quantity is reduced by half;
for the purpose of
Form connection relation, traversing measurement needs to test alpha 1 X 1 →β 1 Y 1 、α 1 X 1 →β 2 Y 2 The connection relation between the resistor and the resistor is used as the correct change of the connection relationAn amount of; but see beta 1 Y 1 、β 2 Y 2 The connection is caused by the existence of misconnection or metal sundries, and the phase is alpha 1 X 1 、β 1 Y 1 、β 2 Y 2 A loop is formed between the three points, the traversal measurement can miss the measurement, and misjudgment of correct connection relation is made; screening by characteristic compression>
Is compressed into
After that, namely beta 1 Y 1 And beta 2 Y 2 Determination of the resistance value between alpha 1 X 1 、β 1 Y 1 、β 2 Y 2 The connection relation between the two; if beta is 1 Y 1 And beta 2 Y 2 Form error loop between them, test current from beta 1 Y 1 Flow direction beta 2 Y 2 The measured resistance value shows negative deviation, and the connection relation shows errors; similarly->
Compressing the original three groups of connection relations to be tested on the connecting BOM table into one group, reducing the number of measurement groups by two thirds, and judging the error connection in the double-point double-line; same reason
And performing feature compression on the Signal-Web framework set content through the operation until the screening algorithm is circularly ended, and outputting a new connecting BOM table for subsequent equipment or manual testing.
Examples
A connection relation screening method aiming at a characteristic value of a bottom plate signal comprises the following implementation steps:
step one, setting a bottom plate signal operator;
for example, the input wiring table file is shown in fig. 2, and the connection point 1 is the starting end of the welding relationship and comprises two sub-items of an item code number and a terminal number; the connection point 2 is a welded terminal and also comprises two sub-items of an item code number and a terminal number.
As shown by 105 wires in fig. 2, between the point with item code number BUS board 2_p4 and terminal number A2 and the point with item code number DB37-2 and terminal number 3, there is and only one connection relationship on the whole wiring table BOM, which is called a single-point single wire in fig. 3; as shown by 100 and 101 wires in fig. 2, the point with item numbers of BUS board 2_p4 and terminal number of A1 is in line connection with the point with item numbers of DB37-2 and terminal numbers of 1 and 2 on the whole wiring table BOM, which is called as a single-point double-line in fig. 3; as shown by the wire numbers 103, 104 and 105 in fig. 2, the point location with the item code number of BUS board 2_p4 and the terminal number of A3 and the point location with the item code number of DB37-3 and the terminal number of 2, and the point location with the item code number of DB37-4 and the terminal number of 3 have three connection relations on the whole wiring table BOM, which is called double-dot double-line in fig. 3; as shown by the wire numbers 106, 107, 108, 109, 110 in fig. 2, the item numbers are BUS board 2_p4, the point with terminal number A6 and A7, the point with item numbers are BUS board 2_p4, terminal numbers A6, A7 and the point with item numbers DB37-2, terminal numbers 8, 9, and the point with item numbers DB37-4, terminal numbers 10, 11 have these five connection relations on the whole wiring table BOM, which is called as a double-point four-wire in fig. 3; the contents are four connection relations in the connection BOM, the rest contents in the connection BOM are the repeated etching in the form, and the contents of the starting end and the ending end are according to signalsThe definition varies from time to time. The macro function of EXCEL software and the VLOOKUP function of software are utilized to convert the contents in the wiring BOM table into the form
For example, 100 wires in fig. 2 are converted into: />
The other connection relations are the same.
Step two, defining the added characteristic value of the signal operator;
adding a characteristic value definition to the content of the wiring BOM table which is converted in the step one, which is like
ab is a characteristic value. When the ab takes the value 11, the single-point single line is represented; when the ab value is 12, the single-point multi-line is represented; representing a double-dot double-line when ab takes a value of 22; when ab takes the value 24, the two-point four-wire system is represented. For example, the 105 wires in fig. 2 are converted into: />
The wire numbers 100 and 101 are combined into: />
The wire numbers 103, 104, 105 are combined into: />
The wire numbers 106, 107, 108, 109, 110 are combined into: />
The other connection relations are the same.
And screening the characteristic values by utilizing the VLOOKUP function in the EXCEL again to form a Signal-Web framework by the combined connection BOM table, wherein the set of the Signal-Web framework is described as follows:
step three, realizing a DCBS algorithm;
and (3) using a DCBS algorithm, adopting Do While circulation, using an IF Else screening statement to perform characteristic compression screening on the Signal-Web frame content formed by screening, deleting repeated logarithms, and forming a new connecting line BOM table for equipment and manual testing. Through various product measurement and calculation, compared with the original connecting BOM table, the DCBS algorithm is used, the number of test groups is reduced by 35% -4%, the efficiency is improved by 50% -10%, and 100% of the connection types of single-point single wires, single-point double wires, double-point double wires and double-point four wires are covered.
The invention also provides a device for screening the connection relation of the characteristic values of the bottom plate signals, which comprises:
the base plate signal operator setting module is used for defining the arrival and departure of the connection line by adopting a two-dimensional vector method according to the information on the base plate connection BOM table and converting the connection line relation on the connection BOM table into a signal operator form;
the Signal operator sequencing and screening module unifies the measurement direction, performs sequencing and screening on all Signal operators in the junction line BOM table to form single-point single-line, single-point double-line, double-point double-line and double-point four-line connection relation sets, wherein each set is used as a branch to form a Signal-Web frame, and adds definition of characteristic values to each Signal operator;
and the feature compression screening module performs feature compression screening on the content of the Signal-Web frame set according to the judgment screening formula and different feature values of the Signal operators, deletes repeated detection logarithms and outputs a new wiring BOM table.
The invention also provides a terminal, which comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor realizes the step of the connection relation screening method aiming at the characteristic value of the base plate signal when executing the computer program.
The invention also provides a computer readable storage medium storing a computer program which when executed by a processor implements the steps of the connection relation screening method for the characteristic values of the base plate signals.
The computer program may be divided into one or more modules/units which are stored in the memory and executed by the processor to perform the method of the present invention. The terminal can be a desktop computer, a notebook computer, a palm computer, a cloud server and other computing devices, and can also be a processor and a memory.
The processor may be a central processing unit (CentralProcessingUnit, CPU), but may also be other general purpose processors, digital signal processors (DigitalSignalProcessor, DSP), application specific integrated circuits (ApplicationSpecificIntegratedCircuit, ASIC), off-the-shelf programmable gate arrays (Field-ProgrammableGateArray, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. The memory may be used to store the computer program and/or module, and the processor may implement various functions of the device for wired relation screening of the backplane signal feature values by running or executing the computer program and/or module stored in the memory and invoking data stored in the memory.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the technical solutions of the present invention in any way, and it should be understood by those skilled in the art that the technical solutions may be modified and replaced in several ways without departing from the spirit and principle of the present invention, and these modifications and substitutions are also included in the protection scope of the claims.
Claims (7)
1. A connection relation screening method aiming at a characteristic value of a bottom plate signal is characterized by comprising the following steps:
s1, setting a base plate signal operator, defining the arrival and departure of a connection line by adopting a two-dimensional vector method according to information on a base plate connection BOM table, and converting all connection line relations on the connection BOM table into a signal operator form;
unifying measurement directions, sorting and screening all Signal operators in a junction line BOM table to form connection relation sets of single-point single lines, single-point double lines, double-point double lines and double-point four lines, wherein each set is used as a branch to form a Signal-Web framework, and adding definition of characteristic values to each Signal operator;
s2, carrying out feature compression screening on the content of the Signal-Web frame set according to different feature values of the Signal operator and a judgment screening formula, and deleting duplicate detection logarithms; outputting a new wiring BOM table to finish the screening of the connection relation of the bottom plate;
the signal operator form defined by the two-dimensional vector method is as follows
X in the formula is a connection relation, namely, the position number of a starting end point of the connection relation, and alpha is defined by signals of the starting end; y is the position of a certain connection relation, namely the position number of a termination end point of the connection relation, and beta is the signal definition of the termination end; selecting a test direction when conducting the connection relation test, wherein the test direction comprises the measurement from the arrival of the connection to the departure of the connection and the measurement from the departure of the connection to the arrival of the connection;
when the measurement is performed from the departure of the wire to the arrival of the wire, the signal operator is in the form of
The Signal-Web framework covers all the wiring relationships in the backplane wiring BOM table, the set of which is described as follows:
wherein ab is a characteristic value;
the feature compression screening adopts Do While circulation, and uses IF Else screening statement to make condition judgment on different signal operators;
the judgment and screening formula is as follows:
for the condition in the step [1] which is a single-point single-wire connection condition, feature compression can not be performed any more;
for [2 ]]The condition in (a) is a single-point double-line connection condition, after characteristic compression,
the original two groups of connection relations to be tested on the connection BOM table are compressed into one group, and the test quantity is reduced by half;
for the purpose of
Form connection relation, traversing measurement needs to test alpha 1 X 1 →β 1 Y 1 、α 1 X 1 →β 2 Y 2 The connection relation between the two is that the resistance value is used as a variable with correct connection relation; but see beta 1 Y 1 、β 2 Y 2 The connection is caused by the existence of misconnection or metal sundries, and the phase is alpha 1 X 1 、β 1 Y 1 、β 2 Y 2 A loop is formed between the three points, the traversal measurement can miss the measurement, and misjudgment of correct connection relation is made; screening by characteristic compression>
Is compressed into
After that, namely beta 1 Y 1 And beta 2 Y 2 Determination of the resistance value between alpha 1 X 1 、β 1 Y 1 、β 2 Y 2 The connection relation between the two; if beta is 1 Y 1 And beta 2 Y 2 Form error loop between them, test current from beta 1 Y 1 Flow direction beta 2 Y 2 The measured resistance value shows negative deviation, and the connection relation shows errors; similarly->
Compressing the original three groups of connection relations to be tested on the connecting BOM table into one group, reducing the number of measurement groups by two thirds, and judging the error connection in the double-point double-line; same reason
2. The wiring relation screening method for the characteristic values of the base plate signals according to claim 1, wherein: the wiring relation on the wiring BOM table is completely converted into a signal operator form by utilizing the macro editing function of office software;
the office software comprises EXCEL.
3. The wiring relation screening method for the characteristic values of the base plate signals according to claim 1, wherein: in the step S1, a signal definition alpha at a starting end is used as a first screening condition, a beginning X of a connection relation is used as a secondary screening condition, and a bubbling sequencing dimension reduction algorithm is utilized to conduct bubbling sequencing screening on all signal operators in a connection BOM table.
4. The wiring relation screening method for the characteristic values of the base plate signals according to claim 1, wherein: after each signal operator increases the eigenvalue, the shape is as follows
When the ab takes the value 11, the single-point single line is represented; when the ab value is 12, the single-point multi-line is represented; representing a double-dot double-line when ab takes a value of 22; when ab takes the value 24, the two-point four-wire system is represented.
5. An apparatus for link relation screening for backplane signal feature values, comprising:
the base plate signal operator setting module is used for defining the arrival and departure of the connection line by adopting a two-dimensional vector method according to the information on the base plate connection BOM table and converting the connection line relation on the connection BOM table into a signal operator form;
the Signal operator sequencing and screening module unifies the measurement direction, performs sequencing and screening on all Signal operators in the junction line BOM table to form single-point single-line, single-point double-line, double-point double-line and double-point four-line connection relation sets, wherein each set is used as a branch to form a Signal-Web frame, and adds definition of characteristic values to each Signal operator;
the feature compression screening module performs feature compression screening on the content of the Signal-Web frame set according to the judging and screening formula according to different feature values of the Signal operator, deletes repeated detection logarithms and outputs a new wiring BOM table;
the signal operator form defined by the two-dimensional vector method is as follows
Where X is a connection, i.e. the initial end point of the connection is the number, and α is the signal of the initial endDefinition; y is the position of a certain connection relation, namely the position number of a termination end point of the connection relation, and beta is the signal definition of the termination end; selecting a test direction when conducting the connection relation test, wherein the test direction comprises the measurement from the arrival of the connection to the departure of the connection and the measurement from the departure of the connection to the arrival of the connection;
when the measurement is performed from the departure of the wire to the arrival of the wire, the signal operator is in the form of
The Signal-Web framework covers all the wiring relationships in the backplane wiring BOM table, the set of which is described as follows:
wherein ab is a characteristic value;
the feature compression screening adopts Do While circulation, and uses IF Else screening statement to make condition judgment on different signal operators;
the judgment and screening formula is as follows:
for the condition in the step [1] which is a single-point single-wire connection condition, feature compression can not be performed any more;
for [2 ]]The condition in (a) is a single-point double-line connection condition, after characteristic compression,
the original two groups of connection relations to be tested on the connection BOM table are compressed into one group, and the test quantity is reduced by half;
for the purpose of
Form connection relation, traversing measurement needs to test alpha 1 X 1 →β 1 Y 1 、α 1 X 1 →β 2 Y 2 The connection relation between the two is that the resistance value is used as a variable with correct connection relation; but see beta 1 Y 1 、β 2 Y 2 The connection is caused by the existence of misconnection or metal sundries, and the phase is alpha 1 X 1 、β 1 Y 1 、β 2 Y 2 A loop is formed between the three points, the traversal measurement can miss the measurement, and misjudgment of correct connection relation is made; screening by characteristic compression>
Is compressed into
After that, namely beta 1 Y 1 And beta 2 Y 2 Determination of the resistance value between alpha 1 X 1 、β 1 Y 1 、β 2 Y 2 The connection relation between the two; if beta is 1 Y 1 And beta 2 Y 2 Form error loop between them, test current from beta 1 Y 1 Flow direction beta 2 Y 2 The measured resistance value shows negative deviation, and the connection relation shows errors; similarly->
Compressing the original three groups of connection relations to be tested on the connecting BOM table into one group, reducing the number of measurement groups by two thirds, and judging the error connection in the double-point double-line; same reason
6. A terminal comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized by: the processor, when executing the computer program, implements the steps of the wiring relation screening method for characteristic values of a backplane signal according to any one of claims 1-4.
7. A computer-readable storage medium storing a computer program, characterized in that: the computer program when executed by a processor performs the steps of the wiring relation screening method for characteristic values of a backplane signal according to any of claims 1-4.
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| CN202010560601.3A CN111737930B (en) | 2020-06-18 | 2020-06-18 | Connection relation screening method and device for characteristic values of base plate signals |
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