A flying probe tester testing method and system

Abstract

The present invention discloses a flying probe tester test method and system, including: calculating and obtaining the geometric center of the probe, obtaining the moving range of the geometric center of the probe; calculating and obtaining the geometric center of the product to be tested, calculating and obtaining at least one supporting point of the device to be tested; generating a primary calibration area, generating a supporting point identification area, and voice-guiding the product to be tested to be placed on the test platform of the tester. By setting a primary calibration module, a secondary calibration module, and a center calculation module, the calibration of the test is divided into two parts, and voice-guided manual operation is used to place the product to be tested on the test machine, and the adjustment and control are fast. When the product to be tested is within the adjustment range of the probe, the position of the probe is finely adjusted using the secondary calibration module, so that the induced current generated between the probe and the product to be tested is maximized, so that the product to be tested can obtain the maximum test current, thereby maximizing the test efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of flying probe testers, and in particular to a flying probe tester testing method and system. Background Art

[0002] Electrical performance testing is a process that PCB must go through during manufacturing. Currently, flying probe testers are the mainstream testing equipment that detects PCB electrical performance by contact. The current market testing requirements for flying probe testers mainly include: precise motion control, reliable electrical performance, fast testing efficiency and diverse testing capabilities, and a good mechanical structure is the key to achieving test accuracy.

[0003] The existing electrical performance testing technology lacks calibration between the product to be tested and the flying probe tester probe. The optimal test angle and the optimal test height between the product to be tested and the flying probe tester probe need to be adjusted multiple times, which is rather troublesome, resulting in low test efficiency, making it difficult to meet the needs of staff and not conducive to promotion and use. Summary of the invention

[0004] In order to solve the above-mentioned technical problems, a flying probe tester testing method and system are provided. The technical solution solves the problem that the existing electrical performance detection technology proposed in the above-mentioned background technology is lacking in calibration between the product to be tested and the flying probe tester probe, and the optimal test angle and the optimal test height between the product to be tested and the flying probe tester probe need to be adjusted multiple times, which is rather troublesome, resulting in low test efficiency, making it difficult to meet the needs of staff and being not conducive to promotion and use.

[0005] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0006] A flying probe tester testing method, comprising:

[0007] The geometric center of the probe is calculated and the initial coordinates of the geometric center of the probe are obtained. The probe can be moved horizontally or vertically on the test machine by a preset distance to obtain the moving range of the geometric center of the probe;

[0008] The product to be tested is brought close to the testing machine, the product to be tested is scanned, the geometric center of the product to be tested is calculated, and the product to be tested is scanned, and at least one supporting point of the product to be tested is calculated;

[0009] Generate a primary calibration area, generate a support point identification area, and place the product to be tested on the test platform of the test machine under voice guidance. The position of the product to be tested satisfies that at least one support point is within the support point identification area, and the geometric center of the product to be tested is within the primary calibration area;

[0010] The probe is moved on the test machine to a position where the geometric center of the probe coincides with the geometric center of the product to be tested;

[0011] According to the probe and the product to be tested, the optimal test distance and the optimal test angle are determined, the test platform is raised and lowered to a preset height, and the test platform is horizontally rotated to the optimal test angle. The preset height satisfies that the distance between the probe and the product to be tested is equal to the optimal test distance.

[0012] Preferably, the calculation to obtain the geometric center of the probe comprises the following steps:

[0013] Scan to obtain a first boundary curve at the inner edge of the probe, and scan to obtain a second boundary curve at the outer edge of the probe;

[0014] generating a first boundary curve and a second boundary curve in the same coordinate system;

[0015] Uniformly selecting at least one first identification point along the first boundary curve, and obtaining a first fitting function of the first identification point according to the coordinates of the first identification point;

[0016] uniformly selecting at least one second identification point along the second boundary curve, and obtaining a second fitting function of the second identification point according to the coordinates of the second identification point;

[0017] The coordinates of the geometric center of the probe are calculated using the geometric center formula;

[0018] The formula for the geometric center is as follows:

[0019] ;

[0020] Among them, the integration region is the area enclosed by the first fitting function and the second fitting function, V is the area of ​​the integration region, X is the horizontal coordinate of the geometric center of the probe, Y is the vertical coordinate of the geometric center of the probe, and (x, y) is the coordinate of the point in the integration region.

[0021] Preferably, obtaining the moving range of the geometric center of the probe comprises the following steps:

[0022] An identification circle is made with the initial coordinates of the geometric center of the probe as the center and the preset distance as the radius. The identification circle is the moving range of the geometric center of the probe.

[0023] Preferably, the calculation to obtain the geometric center of the product to be tested comprises the following steps:

[0024] Scan to obtain a first edge curve of the inner edge of the product to be tested, and scan to obtain a second edge curve of the outer edge of the product to be tested;

[0025] generating a first edge curve and a second edge curve in the same coordinate system;

[0026] Uniformly selecting at least one first fitting point along the first edge curve, and obtaining a first approximation function of the first fitting point according to the coordinates of the first fitting point;

[0027] uniformly selecting at least one second fitting point along the second edge curve, and obtaining a second approximation function of the second fitting point according to the coordinates of the second fitting point;

[0028] Use the geometric center formula to calculate the coordinates of the geometric center of the product to be tested;

[0029] The formula for the geometric center is as follows:

[0030] ;

[0031] Among them, the integration region is the area enclosed by the first approximation function and the first approximation function, W is the area of ​​the integration region, Z is the horizontal coordinate of the geometric center of the product to be tested, R is the vertical coordinate of the geometric center of the product to be tested, and (x, y) are the coordinates of the point in the integration region.

[0032] Preferably, the calculating and obtaining at least one supporting point of the product to be tested comprises the following steps:

[0033] Obtain the marginal curve of the product to be tested, uniformly select at least one marginal point along the marginal curve, and draw a tangent line through the marginal point;

[0034] Draw a normal line perpendicular to the corresponding tangent line through the marginal point, with a normal line length of d. Check whether the area connected by the endpoints of the normal line located in the marginal curve can be included in the support point identification area. If so, at least one of the endpoints is used as at least one support point. If not, increase the normal line length by r.

[0035] Preferably, the generating of the primary calibration area comprises the following steps:

[0036] A calibration circle is arbitrarily defined, and the calibration circle is included in the moving range of the geometric center of the probe, and the calibration circle is used as the primary calibration area.

[0037] Preferably, the generating of the support point identification area comprises the following steps:

[0038] Scan the edge of the test platform and use the area enclosed by the edge of the test platform as the support point identification area.

[0039] Preferably, the step of moving the probe on the testing machine to a position where the geometric center of the probe coincides with the geometric center of the product to be tested comprises the following steps:

[0040] Obtain the coordinates of the geometric center of the probe and the coordinates of the geometric center of the product to be tested;

[0041] According to the coordinates of the two, the moving vector of the geometric center of the probe is calculated ;

[0042] According to the direction of the horizontal or vertical component of the moving vector, the coordinate of the geometric center of the probe is moved horizontally by e units, and the coordinate of the geometric center of the probe is moved vertically by f units.

[0043] Preferably, determining the optimal test distance comprises the following steps:

[0044] The test platform slowly rises from the lowest point. A sensor is set on the test machine. The sensor measures the induced electric field generated by the induced current in the product to be tested. The induced current is positively correlated with the test current of the product to be tested.

[0045] When the induced current reaches a high point and starts to decrease, the height of the test platform corresponding to the high point of the induced current is taken as the optimal test distance;

[0046] Determining the best test angle involves the following steps:

[0047] The test platform is slow, and the test machine is equipped with a sensor, which measures the induced electric field generated by the induced current in the product to be tested. The induced current is positively correlated with the test current of the product to be tested;

[0048] When the induced current reaches a high point and starts to decrease, the rotation angle of the test platform corresponding to the high point of the induced current is taken as the optimal test angle.

[0049] A flying probe tester testing system, used to implement the above-mentioned flying probe tester testing method, comprising:

[0050] A center calculation module, which is used to calculate the geometric center of the probe and the geometric center of the product to be tested;

[0051] A scanning module, wherein the scanning module is used to scan the product to be tested;

[0052] A range estimation module, the range estimation module is used to obtain the moving range of the geometric center of the probe;

[0053] A primary calibration module, the primary calibration module is used to guide the product to be tested to be placed on the test platform of the test machine, the position of the product to be tested satisfies that at least one support point is within the support point identification area, and the geometric center of the product to be tested is within the primary calibration area;

[0054] A secondary calibration module, which is used to control the probe to move to a position where the geometric center of the probe coincides with the geometric center of the product to be tested, control the test platform to rise and fall to a preset height, and control the test platform to rotate horizontally to an optimal test angle;

[0055] An identification area module, the identification area module is used to generate a primary calibration area and generate a support point identification area;

[0056] A voice guidance module is used to issue voice guidance.

[0057] The working process of the above-mentioned flying probe test system is as follows:

[0058] Step 1: The center calculation module calculates the geometric center of the probe and obtains the initial coordinates of the geometric center of the probe, and the range estimation module obtains the moving range of the geometric center of the probe;

[0059] Step 2: The scanning module scans the product to be tested, and the center calculation module calculates and obtains the geometric center of the product to be tested. The scanning module scans the product to be tested, and the center calculation module calculates and obtains at least one supporting point of the product to be tested;

[0060] Step 3: The recognition area module generates a primary calibration area, and the recognition area module generates a support point recognition area;

[0061] Step 4: The voice guidance module issues voice guidance to assist the primary calibration module in guiding the product to be tested to be placed on the test platform of the test machine. The position of the product to be tested satisfies that at least one support point is within the support point identification area, and the geometric center of the product to be tested is within the primary calibration area.

[0062] Step 5: The secondary calibration module controls the probe to move to the position where the geometric center of the probe coincides with the geometric center of the product to be tested. The secondary calibration module determines the optimal test distance and the optimal test angle based on the probe and the product to be tested, controls the test platform to be raised and lowered to a preset height, and controls the test platform to rotate horizontally to the optimal test angle. The preset height satisfies that the distance between the probe and the product to be tested is equal to the optimal test distance.

[0063] Compared with the prior art, the present invention has the following beneficial effects:

[0064] By setting up a primary calibration module, a secondary calibration module and a central calculation module, the test calibration is divided into two parts. Voice is used to guide manual operation to place the product to be tested on the test machine. The adjustment operation is fast, and the product to be tested is within the adjustment range of the probe. The secondary calibration module is used to finely adjust the position of the probe to maximize the induced current generated between the probe and the product to be tested, so that the product to be tested can obtain the maximum test current, thereby maximizing the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] Figure 1 It is a schematic diagram of the method flow of the present invention;

[0066] Figure 2A schematic flow chart of a method for calculating the geometric center of a probe in the present invention;

[0067] Figure 3 A schematic diagram of the flow chart of the method for calculating the geometric center of the product to be tested in the present invention;

[0068] Figure 4 A schematic flow chart of a method for calculating and obtaining at least one supporting point of a product to be tested in the present invention;

[0069] Figure 5 A schematic diagram of a method for determining an optimal test distance in the present invention;

[0070] Figure 6 The figure is a flow chart of the method for determining the optimal test angle in the present invention. DETAILED DESCRIPTION

[0071] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0072] Reference Figure 1 As shown, a flying probe tester testing method includes:

[0073] The geometric center of the probe is calculated and the initial coordinates of the geometric center of the probe are obtained. The probe can be moved horizontally or vertically on the test machine by a preset distance to obtain the moving range of the geometric center of the probe;

[0074] The product to be tested is brought close to the testing machine, the product to be tested is scanned, the geometric center of the product to be tested is calculated, and the product to be tested is scanned, and at least one supporting point of the product to be tested is calculated;

[0075] Generate a primary calibration area, generate a support point identification area, and place the product to be tested on the test platform of the test machine under voice guidance. The position of the product to be tested satisfies that at least one support point is within the support point identification area, and the geometric center of the product to be tested is within the primary calibration area;

[0076] The probe is moved on the test machine to a position where the geometric center of the probe coincides with the geometric center of the product to be tested;

[0077] According to the probe and the product to be tested, the optimal test distance and the optimal test angle are determined, the test platform is raised and lowered to a preset height, and the test platform is horizontally rotated to the optimal test angle. The preset height satisfies that the distance between the probe and the product to be tested is equal to the optimal test distance.

[0078] Reference Figure 2 As shown, calculating the geometric center of the probe includes the following steps:

[0079] Scan to obtain a first boundary curve at the inner edge of the probe, and scan to obtain a second boundary curve at the outer edge of the probe;

[0080] generating a first boundary curve and a second boundary curve in the same coordinate system;

[0081] Uniformly selecting at least one first identification point along the first boundary curve, and obtaining a first fitting function of the first identification point according to the coordinates of the first identification point;

[0082] uniformly selecting at least one second identification point along the second boundary curve, and obtaining a second fitting function of the second identification point according to the coordinates of the second identification point;

[0083] The coordinates of the geometric center of the probe are calculated using the geometric center formula;

[0084] The formula for the geometric center is as follows:

[0085] ;

[0086] Wherein, the integration region is the region enclosed by the first fitting function and the second fitting function, V is the area of ​​the integration region, X is the abscissa of the geometric center of the probe, Y is the ordinate of the geometric center of the probe, and (x, y) is the coordinate of a point in the integration region;

[0087] The geometric center of the probe and the geometric center of the product to be tested are calculated in order to have a reference point when controlling the movement of the probe and the product to be tested. The reference point must satisfy the requirement that when the test efficiency is the highest, the two reference points must coincide in the vertical direction. Therefore, choosing the center of the set as the reference point not only meets the requirements, but also makes the calculation more convenient.

[0088] Obtaining the range of motion of the probe's geometric center includes the following steps:

[0089] With the initial coordinates of the geometric center of the probe as the center and the preset distance as the radius, an identification circle is made, wherein the identification circle is the moving range of the geometric center of the probe;

[0090] The moving range of the geometric center of the probe is obtained so that the geometric center of the product to be tested can be placed within the moving range of the geometric center of the probe when the product to be tested is placed on the test platform of the test machine under voice guidance. Under the guidance of voice, it is very easy for the operator to place it in a larger area. At the same time, the subsequent geometric center of the probe can also be moved through its own control, so that the geometric center of the probe coincides with the geometric center of the product to be tested.

[0091] Reference Figure 3 As shown, calculating the geometric center of the product to be tested includes the following steps:

[0092] Scan to obtain a first edge curve of the inner edge of the product to be tested, and scan to obtain a second edge curve of the outer edge of the product to be tested;

[0093] generating a first edge curve and a second edge curve in the same coordinate system;

[0094] Uniformly selecting at least one first fitting point along the first edge curve, and obtaining a first approximation function of the first fitting point according to the coordinates of the first fitting point;

[0095] uniformly selecting at least one second fitting point along the second edge curve, and obtaining a second approximation function of the second fitting point according to the coordinates of the second fitting point;

[0096] Use the geometric center formula to calculate the coordinates of the geometric center of the product to be tested;

[0097] The formula for the geometric center is as follows:

[0098] ;

[0099] Among them, the integration region is the area enclosed by the first approximation function and the first approximation function, W is the area of ​​the integration region, Z is the horizontal coordinate of the geometric center of the product to be tested, R is the vertical coordinate of the geometric center of the product to be tested, and (x, y) are the coordinates of the point in the integration region.

[0100] Reference Figure 4 As shown, calculating and obtaining at least one supporting point of the device to be tested includes the following steps:

[0101] Obtaining a marginal curve of the device to be tested, uniformly selecting at least one marginal point along the marginal curve, and drawing a tangent line through the marginal point;

[0102] Draw a normal line perpendicular to the corresponding tangent line through the marginal point, with a normal line length of d, and examine whether the area connected by the endpoints of the normal line located in the marginal curve can be included in the support point identification area. If so, at least one of the endpoints is used as at least one support point. If not, increase the normal line length by r.

[0103] The purpose of calculating at least one support point of the device to be tested is that when at least one support point is placed in the support point identification area, the center of gravity of the device to be tested can be located on the test platform and can obtain support from multiple points so that it will not fall from the test platform, so as to carry out continuous and stable testing.

[0104] Generating a primary calibration region consists of the following steps:

[0105] Arbitrarily define a calibration circle, which is contained in the moving range of the geometric center of the probe, and use the calibration circle as a primary calibration area;

[0106] The primary calibration area is contained in the moving range of the geometric center of the probe, so all points in the primary calibration area can be overlapped after the geometric center of the probe is moved, and the geometric center of the product to be tested is in the primary calibration area, so the geometric center of the probe can be moved to overlap with the geometric center of the product to be tested.

[0107] Generating a support point identification area includes the following steps:

[0108] Scan the edge of the test platform and use the area enclosed by the edge of the test platform as the support point identification area.

[0109] Reference Figure 5 As shown, moving the probe on the test machine to a position where the geometric center of the probe coincides with the geometric center of the product to be tested includes the following steps:

[0110] Obtain the coordinates of the geometric center of the probe and the coordinates of the geometric center of the product to be tested;

[0111] According to the coordinates of the two, the moving vector of the geometric center of the probe is calculated ;

[0112] According to the direction of the horizontal or vertical component of the moving vector, the coordinate of the geometric center of the probe is moved horizontally by e units, and the coordinate of the geometric center of the probe is moved vertically by f units.

[0113] Reference Figure 6 As shown, determining the optimal test distance includes the following steps:

[0114] The test platform slowly rises from the lowest point. A sensor is set on the test machine. The sensor measures the induced electric field generated by the induced current in the product to be tested. The induced current is positively correlated with the test current of the product to be tested.

[0115] When the induced current reaches a high point and starts to decrease, the height of the test platform corresponding to the high point of the induced current is taken as the optimal test distance;

[0116] Because the function of the test current changing with height must have a maximum value according to the actual situation, and must increase first and then decrease. Therefore, when the induced current reaches a high point and begins to decrease, the height of the test platform corresponding to the high point of the induced current can be used as the optimal test distance;

[0117] Determining the best test angle involves the following steps:

[0118] The test platform is slow, and the test machine is equipped with a sensor, which measures the induced electric field generated by the induced current in the product to be tested. The induced current is positively correlated with the test current of the product to be tested;

[0119] When the induced current reaches a high point and starts to decrease, the rotation angle of the test platform corresponding to the high point of the induced current is taken as the optimal test angle;

[0120] Because the function of the test current changing with the angle must have a maximum value according to the actual situation, and must first increase and then decrease. Therefore, when the induced current reaches a high point and begins to decrease, the rotation angle of the test platform corresponding to the high point of the induced current can be used as the optimal test angle.

[0121] A flying probe tester testing system, used to implement the above-mentioned flying probe tester testing method, comprising:

[0122] A center calculation module, which is used to calculate the geometric center of the probe and the geometric center of the product to be tested;

[0123] A scanning module, wherein the scanning module is used to scan the product to be tested;

[0124] A range estimation module, the range estimation module is used to obtain the moving range of the geometric center of the probe;

[0125] A primary calibration module, the primary calibration module is used to guide the product to be tested to be placed on the test platform of the test machine, the position of the product to be tested satisfies that at least one support point is within the support point identification area, and the geometric center of the product to be tested is within the primary calibration area;

[0126] A secondary calibration module, which is used to control the probe to move to a position where the geometric center of the probe coincides with the geometric center of the product to be tested, control the test platform to rise and fall to a preset height, and control the test platform to rotate horizontally to an optimal test angle;

[0127] An identification area module, the identification area module is used to generate a primary calibration area and generate a support point identification area;

[0128] A voice guidance module is used to issue voice guidance.

[0129] The working process of the above-mentioned flying probe test system is as follows:

[0130] Step 1: The center calculation module calculates the geometric center of the probe and obtains the initial coordinates of the geometric center of the probe, and the range estimation module obtains the moving range of the geometric center of the probe;

[0131] Step 2: The scanning module scans the product to be tested, and the center calculation module calculates and obtains the geometric center of the product to be tested. The scanning module scans the product to be tested, and the center calculation module calculates and obtains at least one supporting point of the product to be tested;

[0132] Step 3: The recognition area module generates a primary calibration area, and the recognition area module generates a support point recognition area;

[0133] Step 4: The voice guidance module issues voice guidance to assist the primary calibration module in guiding the product to be tested to be placed on the test platform of the test machine. The position of the product to be tested satisfies that at least one support point is within the support point identification area, and the geometric center of the product to be tested is within the primary calibration area.

[0134] Step 5: The secondary calibration module controls the probe to move to the position where the geometric center of the probe coincides with the geometric center of the product to be tested. The secondary calibration module determines the optimal test distance and the optimal test angle based on the probe and the product to be tested, controls the test platform to be raised and lowered to a preset height, and controls the test platform to rotate horizontally to the optimal test angle. The preset height satisfies that the distance between the probe and the product to be tested is equal to the optimal test distance.

[0135] To sum up, the advantages of the present invention are: by setting a primary calibration module, a secondary calibration module and a central calculation module, the calibration of the test is divided into two parts, voice is used to guide manual operation to place the product to be tested on the testing machine, the adjustment operation is quick, and the product to be tested is within the adjustment range of the probe, and the secondary calibration module is used to finely adjust the position of the probe so that the induced current generated between the probe and the product to be tested is maximized, so that the product to be tested can obtain the maximum test current, thereby maximizing the test efficiency.

[0136] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A flying probe tester testing method, characterized in that: include: The geometric center of the probe is calculated and the initial coordinates of the geometric center of the probe are obtained. The probe can be moved horizontally or vertically on the test machine by a preset distance to obtain the moving range of the geometric center of the probe; The product to be tested is brought close to the testing machine, the product to be tested is scanned, the geometric center of the product to be tested is calculated, and the product to be tested is scanned, and at least one supporting point of the product to be tested is calculated; Generate a primary calibration area, generate a support point identification area, and place the product to be tested on the test platform of the test machine under voice guidance. The position of the product to be tested satisfies that at least one support point is within the support point identification area, and the geometric center of the product to be tested is within the primary calibration area; The probe is moved on the test machine to a position where the geometric center of the probe coincides with the geometric center of the product to be tested; According to the probe and the product to be tested, the optimal test distance and the optimal test angle are determined, the test platform is raised and lowered to a preset height, and the test platform is horizontally rotated to the optimal test angle. The preset height satisfies that the distance between the probe and the product to be tested is equal to the optimal test distance.

2. A flying probe tester testing method according to claim 1, characterized in that: The calculation to obtain the geometric center of the probe comprises the following steps: Scan to obtain a first boundary curve at the inner edge of the probe, and scan to obtain a second boundary curve at the outer edge of the probe; generating a first boundary curve and a second boundary curve in the same coordinate system; Uniformly selecting at least one first identification point along the first boundary curve, and obtaining a first fitting function of the first identification point according to the coordinates of the first identification point; uniformly selecting at least one second identification point along the second boundary curve, and obtaining a second fitting function of the second identification point according to the coordinates of the second identification point; The coordinates of the geometric center of the probe are calculated using the geometric center formula; The formula for the geometric center is as follows: ； Among them, the integration region is the area enclosed by the first fitting function and the second fitting function, V is the area of ​​the integration region, X is the horizontal coordinate of the geometric center of the probe, Y is the vertical coordinate of the geometric center of the probe, and (x, y) is the coordinate of the point in the integration region.

3. A flying probe tester testing method according to claim 2, characterized in that: The step of obtaining the moving range of the geometric center of the probe comprises the following steps: An identification circle is made with the initial coordinates of the geometric center of the probe as the center and the preset distance as the radius. The identification circle is the moving range of the geometric center of the probe.

4. A flying probe tester testing method according to claim 3, characterized in that: The calculation to obtain the geometric center of the product to be tested comprises the following steps: Scan to obtain a first edge curve of the inner edge of the product to be tested, and scan to obtain a second edge curve of the outer edge of the product to be tested; generating a first edge curve and a second edge curve in the same coordinate system; Uniformly selecting at least one first fitting point along the first edge curve, and obtaining a first approximation function of the first fitting point according to the coordinates of the first fitting point; uniformly selecting at least one second fitting point along the second edge curve, and obtaining a second approximation function of the second fitting point according to the coordinates of the second fitting point; Use the geometric center formula to calculate the coordinates of the geometric center of the product to be tested; The formula for the geometric center is as follows: ； Among them, the integration region is the area enclosed by the first approximation function and the first approximation function, W is the area of ​​the integration region, Z is the horizontal coordinate of the geometric center of the product to be tested, R is the vertical coordinate of the geometric center of the product to be tested, and (x, y) are the coordinates of the point in the integration region.

5. A flying probe tester testing method according to claim 4, characterized in that: The step of calculating and obtaining at least one supporting point of the product to be tested comprises the following steps: Obtain the marginal curve of the product to be tested, uniformly select at least one marginal point along the marginal curve, and draw a tangent line through the marginal point; Draw a normal line perpendicular to the corresponding tangent line through the marginal point, with a normal line length of d. Check whether the area connected by the endpoints of the normal line located in the marginal curve can be included in the support point identification area. If so, at least one of the endpoints is used as at least one support point. If not, increase the normal line length by r.

6. A flying probe tester testing method according to claim 5, characterized in that: Generating the primary calibration area comprises the following steps: A calibration circle is arbitrarily defined, and the calibration circle is included in the moving range of the geometric center of the probe, and the calibration circle is used as the primary calibration area.

7. A flying probe tester testing method according to claim 6, characterized in that: The generating of the support point identification area comprises the following steps: Scan the edge of the test platform and use the area enclosed by the edge of the test platform as the support point identification area.

8. A flying probe tester testing method according to claim 7, characterized in that: The step of moving the probe on the testing machine to a position where the geometric center of the probe coincides with the geometric center of the product to be tested comprises the following steps: Obtain the coordinates of the geometric center of the probe and the coordinates of the geometric center of the product to be tested; According to the coordinates of the two, the moving vector of the geometric center of the probe is calculated ; According to the direction of the horizontal or vertical component of the moving vector, the coordinate of the geometric center of the probe is moved horizontally by e units, and the coordinate of the geometric center of the probe is moved vertically by f units.

9. A flying probe tester testing method according to claim 8, characterized in that: Determining the optimal test distance comprises the following steps: The test platform slowly rises from the lowest point. A sensor is set on the test machine. The sensor measures the induced electric field generated by the induced current in the product to be tested. The induced current is positively correlated with the test current of the product to be tested. When the induced current reaches a high point and starts to decrease, the height of the test platform corresponding to the high point of the induced current is taken as the optimal test distance; Determining the best test angle involves the following steps: The test platform is slow, and the test machine is equipped with a sensor, which measures the induced electric field generated by the induced current in the product to be tested. The induced current is positively correlated with the test current of the product to be tested; When the induced current reaches a high point and starts to decrease, the rotation angle of the test platform corresponding to the high point of the induced current is taken as the optimal test angle.

10. A flying probe tester testing system, used to implement a flying probe tester testing method as claimed in any one of claims 1 to 9, characterized in that: include: A center calculation module, which is used to calculate the geometric center of the probe and the geometric center of the product to be tested; A scanning module, wherein the scanning module is used to scan the product to be tested; A range estimation module, the range estimation module is used to obtain the moving range of the geometric center of the probe; A primary calibration module, the primary calibration module is used to guide the product to be tested to be placed on the test platform of the test machine, the position of the product to be tested satisfies that at least one support point is within the support point identification area, and the geometric center of the product to be tested is within the primary calibration area; A secondary calibration module, which is used to control the probe to move to a position where the geometric center of the probe coincides with the geometric center of the product to be tested, control the test platform to rise and fall to a preset height, and control the test platform to rotate horizontally to an optimal test angle; An identification area module, the identification area module is used to generate a primary calibration area and generate a support point identification area; The voice guidance module is used to issue voice guidance.

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