阅读说明：本技术 一种针对底板信号特征值的连线关系筛选方法及设备 (Connection relation screening method and device for characteristic values of bottom plate signals ) 是由 高啸 岳学智 吴曌 宁超凡 于 2020-06-18 设计创作，主要内容包括：一种针对底板信号特征值的连线关系筛选方法及设备,筛选方法包括设置底板信号算子,根据底板接线BOM表上的信息对连线的来处、去处采用二维向量方法进行定义,将接线BOM表上的连线关系全部转化为信号算子形式；统一测量方向,对接线BOM表中所有信号算子进行排序筛选,形成单点单线、单点双线、双点双线、双点四线的连接关系集合,每个集合作为一个分支,形成Signal-Web框架,并对每个信号算子增加特征值的定义；根据信号算子不同的特征值,依据判断筛选公式,对Signal-Web框架集合内容进行特征压缩筛选,删除重复检测对数；输出新的接线BOM表,完成底板连线关系筛选。本发明能覆盖所有连线关系检测,检测效率高。(A screening method and equipment aiming at a connecting line relation of a characteristic value of a bottom plate signal are disclosed, the screening method comprises the steps of setting a bottom plate signal operator, defining the processing and the removing of a connecting line by adopting a two-dimensional vector method according to information on a bottom plate connecting BOM table, and converting all the connecting line relations on the connecting line BOM table into a signal operator form; unifying the measurement direction, sequencing and screening all Signal operators in a BOM table to form a connection relation set of a single-point single line, a single-point double line, a double-point double line and a double-point double line, wherein each set is used as a branch to form a Signal-Web frame, and the definition of a characteristic value is added to each Signal operator; according to different characteristic values of the Signal operator, according to a judgment and screening formula, carrying out characteristic compression screening on the content of the Signal-Web frame set, and deleting the repeated detection logarithm; and outputting a new wiring BOM table to complete the screening of the connection relation of the bottom plate. The invention can cover all the connection relation detection and has high detection efficiency.)

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 bottom plate signal operator, defining the processing and the removing of the connecting line by a two-dimensional vector method according to the information on the bottom plate wiring BOM table, and converting all the connecting line relations on the wiring BOM table into a signal operator form;

unifying the measurement direction, sequencing and screening all Signal operators in a BOM table to form a connection relation set of a single-point single line, a single-point double line, a double-point double line and a double-point double line, wherein each set is used as a branch to form a Signal-Web frame, and the definition of a characteristic value is added to each Signal operator;

s2, according to different characteristic values of the Signal operator, according to a judgment and screening formula, carrying out characteristic compression screening on the content of the Signal-Web frame set, and deleting the repeated detection logarithm; and outputting a new wiring BOM table to complete the screening of the connection relation of the bottom plate.

2. The method for screening connection line relationships for characteristic values of backplane signals according to claim 1, wherein: the signal operator form defined by the two-dimensional vector method is

when the measurement is made from the line to the line, the signal operator is of the form

3. The method for screening connection line relationships for characteristic values of backplane signals according to claim 1, wherein: converting all connection line relations on the wiring BOM into a signal operator form by utilizing a macro editing function of office software;

the office software comprises EXCEL.

4. The method for screening connection line relationships for characteristic values of backplane signals according to claim 1, wherein: in step S1, the signal definition α of the start end is used as a first screening condition, the processing X of the connection relation is used as a second screening condition, and a bubble sorting dimension reduction algorithm is used to perform bubble sorting screening on all signal operators in the connection BOM table.

5. The method for screening connection line relationships for characteristic values of backplane signals according to claim 1, wherein: each signal operator is shaped as if it had added a characteristic value

6. The method for screening connection line relationships for characteristic values of backplane signals according to claim 1, wherein:

the Signal-Web framework covers all wiring relations in the BOM table, and the collection of the wiring relations is described as follows:

d0 Whlie circulation is adopted in feature compression screening, and different signal operators are subjected to condition judgment by using IF Else screening statements;

the judgment and screening formula is as follows:

for the condition in [1] as a single-point single-line connection condition, feature compression can not be carried out any more;

for [2 ]]The case (1) is a single-point two-wire connection case, and after feature compression, the original two groups of connection relations to be tested on the connection BOM are compressed into one group, and the test quantity is reduced by half;

to is directed at

7. An apparatus for screening connection line relationships for characteristic values of backplane signals, comprising:

the bottom plate signal operator setting module is used for defining the processing and the removing of the connecting lines by adopting a two-dimensional vector method according to the information on the bottom plate wiring BOM table and converting all the connecting line relations on the wiring BOM table into a signal operator form;

the Signal operator sequencing and screening module is used for measuring directions in a unified manner, sequencing and screening all Signal operators in the BOM table to form a single-point single line, single-point double lines, double-point double lines and double-point double lines connection relation set, taking each set as a branch to form a Signal-Web frame, and adding definition of a characteristic value to each Signal operator;

and the characteristic compression screening module is used for performing characteristic compression screening on the content of the Signal-Web frame set according to the judgment screening formula and different characteristic values of the Signal operator, deleting the repeated detection logarithm and outputting a new wiring BOM table.

8. A terminal comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: the processor, when executing the computer program, implements the steps of the method for screening connection relation of characteristic values of backplane signals according to any one of claims 1 to 6.

9. A computer-readable storage medium storing a computer program, characterized in that: the computer program when being executed by a processor implements the steps of the method for screening a wiring relation for a characteristic value of a backplane signal according to any one of claims 1 to 6.

Technical Field

The invention belongs to the field of connection of electronic product bottom plates, and particularly relates to a method and equipment for screening connection relation of bottom plate signal characteristic values.

Background

After the connection of the bottom plate of the electronic product of the whole machine is finished, the correctness of the connection needs to be detected. According to the product quality requirement, the test coverage rate of all the wires interconnected with the bottom plate needs to reach 100%. In the prior art, a test device is combined with a manual measurement method to perform traversal measurement on all wires which are connected 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 has huge machine time waste for products with complex connection relations of the bottom plate. In addition, the existing measuring method based on traversal cannot check the connection relation of single-point double lines, double-point double lines and double-point double lines, and has a leak in the test coverage of the connection fault mode. In summary, the relation of the connection lines to be tested must be screened, and the traversal algorithm is improved, so as to improve the coverage of the fault test of the connection line 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 testing of the electronic product bottom plate in the prior art, and provides a method and equipment for screening connection relation of bottom plate signal characteristic values.

In order to achieve the purpose, the 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 bottom plate signal operator, defining the processing and the removing of the connecting line by a two-dimensional vector method according to the information on the bottom plate wiring BOM table, and converting all the connecting line relations on the wiring BOM table into a signal operator form;

unifying the measurement direction, sequencing and screening all Signal operators in a BOM table to form a connection relation set of a single-point single line, a single-point double line, a double-point double line and a double-point double line, wherein each set is used as a branch to form a Signal-Web frame, and the definition of a characteristic value is added to each Signal operator;

s2, according to different characteristic values of the Signal operator, according to a judgment and screening formula, carrying out characteristic compression screening on the content of the Signal-Web frame set, and deleting the repeated detection logarithm; and outputting a new wiring BOM table to complete the screening of the connection relation of the bottom plate.

Preferably, the two-dimensional vector method defines the signal operator in the form ofWherein X is the position number of the starting end point of the connection relation, α is the signal definition of the starting end, Y is the position of the ending end point of the connection relation, β is the signal definition of the ending end, when the connection relation is tested, the testing direction is selected, the testing direction includes the measurement from the position of the connection to the position of the connection and the measurement from the position of the connection to the position of the connection, when the measurement is from the position of the connection to the position of the connection, the signal operator is in the form of signal operator

Preferably, the connection line relation on the wiring BOM 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 of the start end is used as the first filtering condition, the processing X of the link relation is used as the second filtering condition, and the bubble sorting and screening is performed on all signal operators in the link BOM table by using the bubble sorting dimension reduction algorithm.

Preferably, each signal operator is shaped as if it had added a characteristic valueab is a characteristic value; when ab takes the value of 11, represents a single point and a single line; represents a single point or multiple lines when ab takes the value 12; ab represents a double-dot double line when it takes the value 22; and ab represents two-dot-four lines when it takes the value 24.

Preferably, the Signal-Web framework covers all the wiring relationships in the BOM table, and the set of the wiring relationships is described as follows:

d0 Whlie circulation is adopted in feature compression screening, and different signal operators are subjected to condition judgment by using IF Else screening statements;

the judgment and screening formula is as follows:

for the condition in [1] as a single-point single-line connection condition, feature compression can not be carried out any more;

for [2 ]]The case (1) is a single-point two-wire connection case, and after feature compression,

the original two groups of connection relations to be tested on the connection BOM are compressed into one group, and the test quantity is reduced by half;

to is directed atShape connectivity, traversal measurements required test α₁X₁→β₁Y₁、α₁X₁→β₂Y₂The resistance value is taken as the correct variable of the connection relation, but β is met₁Y₁、β₂Y₂There is a misconnection or metal debris between them to make conduction at α₁X₁、β₁Y₁、β₂Y₂A loop is formed between the three points, the measurement is missed when the measurement is traversed, and misjudgment of correct connection relation is made; by feature compression screening

Is compressed intoThen, at β₁Y₁And β₂Y₂Resistance value determination α between₁X₁、β₁Y₁、β₂Y₂If β₁Y₁And β₂Y₂An error loop is formed between the test current and the test current from β₁Y₁Flow direction β₂Y₂The measured resistance value shows negative deviation, and the connection relation shows error; in the same way

Compressing the original three groups of connection relations to be measured on the connection BOM table into one group, reducing the number of measurement groups by two thirds, and judging misconnection in the double-point double-line; in the same way The original five groups of connection relations on the connection BOM table are compressed into three groups, the test group is reduced by two fifths, and the wrong connection of two-point four-line is judged.

The invention also provides a device for screening the connection relation of the characteristic values of the signals of the bottom plate, which comprises the following components:

the bottom plate signal operator setting module is used for defining the processing and the removing of the connecting lines by adopting a two-dimensional vector method according to the information on the bottom plate wiring BOM table and converting all the connecting line relations on the wiring BOM table into a signal operator form;

the Signal operator sequencing and screening module is used for measuring directions in a unified manner, sequencing and screening all Signal operators in the BOM table to form a single-point single line, single-point double lines, double-point double lines and double-point double lines connection relation set, taking each set as a branch to form a Signal-Web frame, and adding definition of a characteristic value to each Signal operator;

and the characteristic compression screening module is used for performing characteristic compression screening on the content of the Signal-Web frame set according to the judgment screening formula and different characteristic values of the Signal operator, deleting the repeated detection logarithm and outputting a new wiring BOM table.

The invention also provides a terminal, which comprises a memory, a processor and a computer program which is stored in the memory and can run on the processor, wherein the processor realizes the step of the connection relation screening method aiming at the characteristic value of the bottom plate signal when executing the computer program.

The invention also provides a computer readable storage medium, which stores a computer program, and the computer program, when executed by a processor, implements the steps of the connection relation screening method for the characteristic value of the backplane signal.

Compared with the prior art, the invention has the following beneficial effects: according to the signal function, a signal operator is defined. In the algorithm polynomial, the tested connection relation is classified as a distinguishing item of different signals, so that the polynomial item is simplified. The method is suitable for detecting various connection fault modes: after the connecting lines are classified through the Signal operators, sorting and screening are carried out, and characteristic value definition is added to each Signal operator to form a Signal-Web frame set. And (4) carrying out feature compression screening on the contents in the connection BOM table, and outputting a new connection BOM table. The number of test groups was reduced from 35% to 4% to different extents. Compared with a traversal measurement method, the algorithm covers detection of single-point single-line, single-point double-line, double-point double-line and double-point double-line fault modes, the coverage of connection line faults is improved, the detection time is shortened, and the detection efficiency is accelerated. The calculation process is simple, and can be used for manual and automatic equipment measurement: the calculation process is simple to operate, the calculation program is high in universality, an electronic version wiring table can be led in, and generation of a bottom plate signal definition operator is automatically completed. The algorithm type is data set union operation, can be completed manually, and has good popularization in manual and machine measurement procedures.

Drawings

FIG. 1 is a flow chart of the steps performed in the screening method of the present invention;

FIG. 2 is a diagram of an original BOM;

FIG. 3 is a diagram showing an example of connection relationship among a single dot and single line, a single dot and double lines, a double dot and double lines, and a double dot and four lines;

FIG. 4 is a schematic diagram of Signal-Web framework.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Referring to fig. 1, the method for screening connection line relationships of characteristic values of backplane signals of the present invention includes the following steps:

s1, setting a bottom plate signal operator, defining the processing and the removing of the connecting line by a two-dimensional vector method according to the information on the bottom plate wiring BOM table, and converting all the connecting line relations on the wiring BOM table into a signal operator form;

the signal operator form defined by the two-dimensional vector method is

Wherein X is the position number of the starting end point of the connection relation, α is the signal definition of the starting end, Y is the position of the ending end point of the connection relation, β is the signal definition of the ending end, when the connection relation is tested, the testing direction is selected, the testing direction includes the measurement from the position of the connection to the position of the connection and the measurement from the position of the connection to the position of the connection, when the measurement is from the position of the connection to the position of the connection, the signal operator is in the form of signal operator

And (4) converting all the connection line relations on the wiring BOM into a signal operator form by using a macro editing function of office software such as EXCEL and the like.

Based on the converted signal operators, the measurement directions are unified, all the signal operators in the BOM table are sorted and screened, and the signal definition α of the starting end is taken as a first screening stripThe method comprises the steps that a connection relation processing X is a secondary screening condition, a bubble sorting dimension reduction algorithm is utilized to carry out bubble sorting screening on all Signal operators in a connection BOM table, a single-point single line, a single-point double line, a double-point double line and a double-point double line are formed, each set is used as a branch, a Signal-Web frame is formed, and definition of a characteristic value is added to each Signal operator; each signal operator is shaped as if it had added a characteristic value

ab is a characteristic value; when ab takes the value of 11, represents a single point and a single line; represents a single point or multiple lines when ab takes the value 12; ab represents a double-dot double line when it takes the value 22; and ab represents two-dot-four lines when it takes the value 24. The bottom plate signal operator with the signature is the standard format of the input to the DCBS algorithm. At this time, the Signal-Web framework already covers all the wiring relationships in the BOM table, and the set of the wiring relationships is described as follows:

the data processing phase of the DCBS algorithm is now over.

S2, according to different characteristic values of the Signal operator, according to a judgment and screening formula, carrying out characteristic compression screening on the content of the Signal-Web frame set, and deleting the repeated detection logarithm; and outputting a new wiring BOM table to complete the screening of the connection relation of the bottom plate.

D0 Whlie circulation is adopted in feature compression screening, and different signal operators are subjected to condition judgment by using IF Else screening statements;

the judgment and screening formula is as follows:

for the condition in [1] as a single-point single-line connection condition, feature compression can not be carried out any more;

for [2 ]]The case (1) is a single-point two-wire connection case, and after feature compression, the original two groups of connection relations to be tested on the connection BOM are compressed into one group, and the test quantity is reduced by half;

to is directed atShape connectivity, traversal measurements required test α₁X₁→β₁Y₁、α₁X₁→β₂Y₂The resistance value is taken as the correct variable of the connection relation, but β is met₁Y₁、β₂Y₂There is a misconnection or metal debris between them to make conduction at α₁X₁、β₁Y₁、β₂Y₂A loop is formed between the three points, the measurement is missed when the measurement is traversed, and misjudgment of correct connection relation is made; by feature compression screeningIs compressed intoThen, at β₁Y₁And β₂Y₂Resistance value determination α between₁X₁、β₁Y₁、β₂Y₂If β₁Y₁And β₂Y₂An error loop is formed between the test current and the test current from β₁Y₁Flow direction β₂Y₂The measured resistance value shows negative deviation, and the connection relation shows error; in the same way

Connecting the original three groups of connection relations to be tested on the connection BOM tableCompressing into a group, reducing the number of the measurement groups by two thirds, and judging misconnection in the double-point double-line; in the same way

The original five groups of connection relations on the connection BOM table are compressed into three groups, the test group is reduced by two fifths, and the wrong connection of two-point four-line is judged.

And performing feature compression on the Signal-Web frame set content through the operation until the filtering algorithm cycle is finished, and outputting a new connecting line BOM for subsequent equipment or manual test.