CN110850269A - Test system, test method, control device, and storage medium - Google Patents
Test system, test method, control device, and storage medium Download PDFInfo
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- CN110850269A CN110850269A CN201910964004.4A CN201910964004A CN110850269A CN 110850269 A CN110850269 A CN 110850269A CN 201910964004 A CN201910964004 A CN 201910964004A CN 110850269 A CN110850269 A CN 110850269A
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- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2801—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
- G01R31/2806—Apparatus therefor, e.g. test stations, drivers, analysers, conveyors
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Abstract
The present application relates to the field of printed circuit board testing technologies, and in particular, to a test system, a test method, a control device, and a storage medium. The test method is applied to control equipment, the control equipment is electrically connected with the test equipment, the test equipment comprises a mobile device and an oscilloscope, and the method comprises the following steps: acquiring a test file; acquiring the position information of the test point of the PCB according to the test file; sending a test instruction to the test equipment so that the test equipment controls the mobile device to move the probe of the oscilloscope to the test point position of the PCB respectively according to the test instruction; the test instruction comprises the location information; acquiring a signal waveform diagram of the test point of the PCB through the oscilloscope; and generating a test result according to the signal waveform diagram. According to the technical scheme, automation and intellectualization of PCB testing are achieved, the testing time period is shortened, the testing speed is increased, and the measuring accuracy is improved.
Description
Technical Field
The present application relates to the field of printed circuit board testing technologies, and in particular, to a test system, a test method, a control device, and a storage medium.
Background
Electronic products and the like include Printed Circuit Boards (PCBs), and the PCBs can avoid errors of manual wiring, ensure the quality of the electronic products, improve labor productivity, reduce cost, and facilitate maintenance. When each electronic product is designed, a PCB needs to be designed. Newly designed PCBs require testing to test their performance. In the prior art, the PCB is tested manually, the manual test time is long, and the test result is easy to generate errors.
Therefore, how to provide a scheme for testing the PCB with high speed and efficiency is a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The application provides a test system, a test method, control equipment and a storage medium, and aims to solve the technical problem that the existing PCB test time is long.
In a first aspect, the present application provides a test system, the test system comprising a control device and a test device, the test device comprising a mobile device and an oscilloscope disposed at an end of the mobile device, the control device being electrically connected to the test device, wherein,
the control equipment is used for acquiring a test file and acquiring the position information of the test point of the PCB according to the test file; sending a test instruction to the test equipment, wherein the test instruction comprises the position information;
the test equipment controls the mobile device to move the probe of the oscilloscope to the test point position of the PCB respectively according to the test instruction;
the oscilloscope acquires a signal waveform diagram of the test point of the PCB and sends the signal waveform diagram to the control equipment;
and the control equipment generates a test result according to the signal oscillogram.
Preferably, the mobile device comprises a test base and a mechanical arm, the PCB is fixed on the test base, and the probe is mounted on the mechanical arm; the test equipment controls the mobile device to move the probe of the oscilloscope to the test point position of the PCB respectively according to the test instruction, and the test equipment specifically comprises:
the test equipment sends the position information to the mobile device according to the test instruction;
and the moving device controls the probes of the oscilloscope to move to the positions of the test points of the PCB respectively through the mechanical arm.
In a second aspect, the present application further provides a testing method applied to a control device, where the control device is electrically connected to the testing device, the testing device includes a mobile device and an oscilloscope, and the method includes:
acquiring a test file;
acquiring the position information of the test point of the PCB according to the test file;
sending a test instruction to the test equipment so that the test equipment controls the mobile device to move the probe of the oscilloscope to the test point position of the PCB respectively according to the test instruction; the test instruction comprises the location information;
acquiring a signal waveform diagram of the test point of the PCB through the oscilloscope;
and generating a test result according to the signal waveform diagram.
Preferably, the acquiring the test file includes:
acquiring a Gerber file; or
And acquiring a PCB coordinate file.
Preferably, before the sending of the test instruction to the test device, the test method further includes:
acquiring origin information of a coordinate system of the PCB according to the test file;
and adjusting the origin of the coordinate system of the mobile device of the test equipment so that the origin of the coordinate system of the mobile device is consistent with the origin of the coordinate system of the PCB.
Preferably, the adjusting the origin of the coordinate system of the mobile device of the test equipment specifically includes:
determining the offset of the coordinate system origin of the PCB and the coordinate system origin of the mobile device according to the coordinate system origin information of the PCB and a preset coordinate system origin of the mobile device;
and controlling the testing equipment to adjust X/Y axis parameters of a horizontal plane of the mobile device according to the offset so as to adjust the origin of a coordinate system of the mobile device.
In a third aspect, the present application further provides a control device, where the control device is electrically connected to a test device, the test device includes a mobile device and an oscilloscope, and the control device includes:
the file acquisition module is used for acquiring a test file;
the position acquisition module is used for acquiring the position information of the test point of the PCB according to the test file;
the sending module is used for sending a test instruction to the test equipment so that the test equipment controls the mobile device to move the probe of the oscilloscope to the test point position of the PCB respectively according to the test instruction; the test instruction comprises the location information;
the waveform acquisition module is used for acquiring a signal waveform diagram of the test point of the PCB through the oscilloscope;
and the result generation module is used for generating a test result according to the signal oscillogram.
Preferably, the file obtaining module is specifically configured to obtain a Gerber file; or acquire a PCB coordinate file.
Preferably, the control apparatus further includes:
the origin acquisition module is used for acquiring the origin information of the coordinate system of the PCB according to the test file;
and the adjusting module is used for adjusting the origin of the coordinate system of the mobile device of the test equipment so as to enable the origin of the coordinate system of the mobile device to be consistent with the origin of the coordinate system of the PCB.
Preferably, the adjusting module comprises:
the determining unit is used for determining the offset of the coordinate system origin of the PCB and the coordinate system origin of the mobile device according to the coordinate system origin information of the PCB and a preset coordinate system origin of the mobile device;
and the adjusting unit is used for controlling the testing equipment to adjust X/Y axis parameters of the horizontal plane of the mobile device according to the offset so as to adjust the origin of the coordinate system of the mobile device.
Preferably, the control device 30 further comprises:
and the heat dissipation module is used for controlling the heat dissipation device to cool the PCB.
Preferably, the control device 30 further comprises:
and the power supply module is used for supplying power to the PCB, and a test program is burnt in the PCB in advance.
In a fourth aspect, the present application further provides a control device, the control device is electrically connected to a test device, the test device includes a mobile device and an oscilloscope, and the control device includes:
a memory for storing a test program;
and the processor is used for realizing the testing method in the embodiment of the second aspect of the application when executing the testing program.
In a fifth aspect, the present application further provides a storage medium, where the storage medium is a computer-readable storage medium, and a test program is stored in the storage medium, where the test program, when executed by a processor, implements the test method according to the embodiment of the second aspect of the present application.
Compared with the prior art, the technical scheme provided by the application obtains the test file; acquiring the position information of the test point of the PCB according to the test file; sending a test instruction to the test equipment so that the test equipment controls the mobile device to move the probe of the oscilloscope to the test point position of the PCB respectively according to the test instruction; the test instruction comprises the location information; acquiring a signal waveform diagram of the test point of the PCB through the oscilloscope; the test result is generated according to the signal oscillogram, so that the automation and the intellectualization of the PCB test are realized, the test time period is shortened, the test speed is accelerated, the test result can be generated without manual intervention after the test file is obtained, the human input is reduced, the error caused by manual measurement is avoided according to the test result, and the accuracy and the consistency of the measurement are improved.
Drawings
Fig. 1 is a block diagram of a test system according to a first embodiment of the present application.
Fig. 2 is a schematic perspective view of a probe and a mobile device of an oscilloscope according to the present application.
Fig. 3 is a block diagram of a mobile device according to the present application.
FIG. 4 is a schematic top view of the PCB mounted on the test base according to the present invention.
Fig. 5 is a flowchart of a testing method according to a second embodiment of the present application.
Fig. 6 is a flowchart of a testing method according to a third embodiment of the present application.
Fig. 7 is a detailed flowchart of step S24 in fig. 6.
Fig. 8 is a block diagram of a control device according to a third embodiment of the present application.
Fig. 9 is a schematic structural diagram of a control device according to a fourth embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be noted that the descriptions in this application referring to "first", "second", etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.
Referring to fig. 1, a first embodiment of the present application provides a test system 10 for testing a PCB. The test system comprises a control device 11 and a test device 12, the test device 12 comprises a mobile device 121 and an oscilloscope 122 arranged at the tail end of the mobile device, the control device 11 is electrically connected with the test device 12, and specifically, the control device 11 is electrically connected with the mobile device 121 and the oscilloscope 122 respectively. It should be noted that, in the present application, the PCB is tested, and the PCB is not an empty board, but a printed circuit board that has been subjected to the patch soldering.
The control device 11 is configured to obtain a test file, and obtain position information of a test point of a printed circuit board PCB according to the test file; and sends a test instruction to the test equipment 12, the test instruction including the location information.
The control device 11 may be a computer or other device that can be used for programming and computing. When the test file is acquired, other devices may send the test file to the control device 11, or a tester may copy the test file to the control device 11, so that the control device 11 can acquire the test file. The test file comprises a coordinate system of the PCB and the positions of all test points of the PCB. The coordinate system of the PCB is used to describe the location of the individual tests, i.e. to describe the coordinates of the individual test points. When the PCB is designed, the origin of the coordinate system of the PCB can be designed according to a uniform standard, and the origins of the coordinate systems of different PCBs can be the same. Specifically, the test file may be a Gerber file or a PCB coordinate file. The Gerber file is a production file containing information of a circuit layer, a solder resist layer, a character layer and the like required for manufacturing the PCB, and comprises a coordinate system of the PCB and positions of test points of the PCB. The PCB coordinate file can be generated by Gerber file through software conversion, such as GC-PowerState software conversion, and the PCB coordinate file can also be generated by PCB design software. The PCB coordinate file includes a coordinate system of the PCB and positions of respective test points of the PCB.
The test file comprises a coordinate system of the PCB and the positions of all test points of the PCB, and the position information of the test points of the PCB can be obtained according to the test file.
The test instructions are for causing the test equipment 12 to test the PCB.
Referring to FIG. 2, the oscilloscope 122 includes a probe 1221. The probe 1221 is mounted to the mobile device 121. The test equipment 12 controls the moving device 121 to move the probe of the oscilloscope 122 to the test point position of the PCB according to the test instruction; the oscilloscope 122 acquires a signal waveform diagram of the test point of the PCB and sends the signal waveform diagram to the control device; the control device 11 generates a test result from the signal waveform diagram.
A PCB includes at least one test point. Typically, a PCB includes a plurality of test points. The probe of the oscilloscope 122 tests each test point, and by sensing the change of the signal in the test point, a signal waveform diagram for each test point can be acquired.
Preferably, the test result includes the position of the test point, a preset signal type corresponding to the test point, a signal waveform diagram corresponding to the test point, and a preset judgment standard corresponding to the test point. The test results may be presented in a reporting fashion. I.e. to generate a test report. Each test point has a corresponding location and each test point will pass through a particular predetermined signal. The preset signal type of the test point is the type of the preset signal which the preset test point position should pass through, the signal type of the test point is determined when the PCB is designed, the signal type of each test point is stored in the control device 11 in advance, and when the test result is generated, the signal type corresponding to the test point can be presented on the test result. The judgment standard is the standard or requirement which the signal of the test point needs to meet. The criteria for the different test points may be different. The judgment standard is pre-stored in the control device 11, and when the test report is generated, the judgment standard corresponding to the test point can be presented on the test result. And the judgment standard on the test result is used for manually judging whether the test point has a problem or not by a tester according to the judgment standard, the type of the signal and the signal oscillogram. When a problem exists, a tester can quickly determine which test point has the problem according to the position of the test point. It can be understood that some test points are reserved and not necessarily useful, so that a tester can also determine the test point to be tested with a developer, and the tester only judges whether the test point to be tested is normal.
Referring to fig. 2, fig. 3 and fig. 4, the PCB is a PCB20, and specifically, the moving device 121 includes a test base 1211 and a robot 1212, the PCB20 is fixed to the test base 1211, the probe of the oscilloscope 122 is mounted on the robot 1212, and when the robot 1212 of the moving device 121 moves, the probe of the oscilloscope 122 can be driven to move. The robotic arm 1212 may be coupled to the test base 1211 or may be separate from the test base 1211. The coordinate system of the test base 1211 includes a coordinate system origin, and the coordinate system of the test base 1211 of the mobile device 121 is used to describe the moved position of the robotic arm 1212. The coordinate system of the test base 1211 is stored on the control apparatus 11 or the mobile device 121.
It is understood that the mobile device 121 may also include a fixture 1213, such as a clamp, that the fixture 1213 is coupled to the test base 1211, the fixture 1213 being used to secure the PCB 20. Mobile device 121 may also include a heat sink 1214; the heat sink 1214 serves to cool the PCB 20. The PCB20 is cooled, so that the PCB20 can work in a normal temperature range, and the test result is more accurate. The type of the heat sink 1214 is not limited, and the heat sink 1214 may be a heat dissipating fan. The heat sink 1214 may also be a water-cooled type of device.
The test equipment 12 controls the moving device 121 to move the probe 1221 of the oscilloscope 122 to the test point position of the PCB20 according to the test instruction, which specifically includes:
the testing device 12 sends the location information to the mobile device 121 according to the testing instruction; the moving device 121 controls the probe of the oscilloscope 122 to move to the position of each test point of the PCB20 through the mechanical arm 1212.
Preferably, the control device 11 further obtains the coordinate system origin information of the PCB20 according to the test file; the control apparatus 11 adjusts the origin of the coordinate system of the moving device 121 of the test apparatus 12 so that the origin of the coordinate system of the moving device 121 and the origin of the coordinate system of the PCB20 coincide.
The test file comprises a coordinate system of the PCB20, and the coordinate system of the PCB20 comprises an origin of a coordinate system of the PCB20, namely the origin of the coordinate system of the PCB20 can be obtained according to the test file. It will be appreciated that in obtaining the coordinate system origin of PCB20, the locations of the test points of PCB20 may be obtained simultaneously, i.e.:
and acquiring the origin of the coordinate system of the PCB20 and the position of the test point of the PCB20 according to the test file.
Preferably, the control device 11 adjusts the coordinate system origin of the mobile device 121 of the test device 12 so that the coordinate system origin of the mobile device 121 and the coordinate system origin of the PCB20 coincide, including:
the control device 11 determines an offset between the coordinate system origin of the PCB20 and the coordinate system origin of the mobile device 121 according to the coordinate system origin information of the PCB20 and a preset coordinate system origin of the mobile device 121; controlling the test equipment 12 to adjust X/Y axis parameters of the horizontal plane of the mobile device 121 according to the offset so as to adjust the origin of the coordinate system of the mobile device 121.
The origin of the coordinate system of the preset moving device 121 may be the position of the point O in fig. 4, or may be set as needed. The PCB20 is placed on the test base 1211 of the mobile device 121. The position where the PCB20 is placed is fixed, the position of the test point of the PCB20 has been obtained, and the position of the test point of the PCB20 is a definite position, i.e., the position of the origin of the coordinate system of the PCB20 is also definite on the test base of the mobile device. When the coordinate system origin information of the PCB20 is inconsistent with the preset coordinate system origin of the mobile device, the offset between the coordinate system origin of the PCB20 and the coordinate system origin of the mobile device can be determined by comparing the coordinate system origin information of the PCB20 with the preset coordinate system origin of the mobile device.
The X/Y-axis parameter, i.e. the amount by which the origin of the coordinate system of the mobile device should be changed. If the offset is that the difference between the coordinate system origin information of the PCB20 and the preset coordinate system origin of the mobile device is 1cm in the X-axis direction and 2cm in the Y-axis direction, the X-axis parameter of the mobile device on the horizontal plane is adjusted, so that the coordinate system origin of the mobile device moves 1cm in the X-axis direction towards the coordinate system origin of the PCB20, and the coordinate system origin of the mobile device moves 2cm in the Y-axis direction towards the coordinate system origin of the PCB20, and then the coordinate system origin of the mobile device can be adjusted.
According to the test system, the control equipment is used for obtaining the test file and obtaining the position information of the test point of the PCB according to the test file; sending a test instruction to the test equipment, wherein the test instruction comprises the position information; the test equipment controls the mobile device to move the probe of the oscilloscope to the test point position of the PCB respectively according to the test instruction; the oscilloscope acquires a signal waveform diagram of the test point of the PCB and sends the signal waveform diagram to the control equipment; the control equipment generates the test result according to the signal oscillogram, so that automation and intellectualization of the test are realized, the test speed is accelerated, the test result can be generated without manual intervention after the test file is obtained, the human input is reduced, the error caused by manual measurement is avoided according to the test result, and the accuracy and the consistency of the measurement are improved.
Referring to fig. 5, fig. 5 is a testing method provided in a second embodiment of the present application, the testing method is based on the foregoing embodiments and can be executed by a control device, the control device can be implemented by hardware and/or software, and the testing method is applied to a testing system for testing a PCB. The test method comprises the following steps:
s11: and acquiring a test file.
When the test file is acquired, other devices can send the test file to the control equipment, or a tester can copy the test file to the control equipment, so that the control equipment can acquire the test file. The test file comprises a coordinate system of the PCB and the positions of all test points of the PCB. The coordinate system of the PCB is used to describe the location of the individual tests, i.e. to describe the coordinates of the individual test points. Specifically, the test file may be a Gerber file or a PCB coordinate file. The Gerber file is a production file containing information of a circuit layer, a solder resist layer, a character layer and the like required for manufacturing the PCB, and comprises a coordinate system of the PCB and positions of test points of the PCB. The PCB coordinate file can be generated by Gerber file through software conversion, such as GC-PowerState software conversion, and the PCB coordinate file can also be generated by PCB design software. The PCB coordinate file includes a coordinate system of the PCB and positions of respective test points of the PCB.
Wherein, obtaining the test file comprises:
acquiring a Gerber file; or
And acquiring a PCB coordinate file.
S12: and acquiring the position information of the test point of the PCB according to the test file.
The test file comprises a coordinate system of the PCB and position information of each test point of the PCB, and the position information of the test point of the PCB can be obtained according to the test file. It can be understood that the coordinate system of the PCB, i.e. the origin coordinates of the coordinate system of the PCB, may also be obtained according to the test file.
S13: sending a test instruction to the test equipment so that the test equipment controls the mobile device to move the probe of the oscilloscope to the test point position of the PCB respectively according to the test instruction; the test instruction includes the location information.
The test instructions are used for enabling the test equipment to test the PCB. The test instruction comprises position information of the test points of the PCB, and the test equipment can control probes of the oscilloscope on the mobile device to move to the positions of the test points respectively.
S14: and acquiring a signal waveform diagram of the test point of the PCB through the oscilloscope.
The probe of the oscilloscope on the mobile device is driven by the mobile device, and when the probe moves to the position of each test point respectively, the probe can detect each test point, so that the oscilloscope obtains the signal waveform diagram of each test point of the PCB.
S15: and generating a test result according to the signal waveform diagram.
The test result includes a signal waveform diagram for use in determining the test result.
Preferably, the test result includes the position of the test point, a preset signal type corresponding to the test point, a signal waveform diagram corresponding to the test point, and a preset judgment standard corresponding to the test point. The test results may be presented in a reporting fashion. I.e. to generate a test report. Each test point has a corresponding location and each test point will pass through a particular predetermined signal. The preset signal type of the test point is the type of the preset signal which the preset test point position should pass through, the signal type of the test point is determined when the PCB is designed, the signal type of each test point is stored in the control device 11 in advance, and when the test result is generated, the signal type corresponding to the test point can be presented on the test result. The judgment standard is the standard or requirement which the signal of the test point needs to meet. The criteria for the different test points may be different. The judgment standard is pre-stored in the control device 11, and when the test report is generated, the judgment standard corresponding to the test point can be presented on the test result. And the judgment standard on the test result is used for manually judging whether the test point has a problem or not by a tester according to the judgment standard, the type of the signal and the signal oscillogram. When a problem exists, a tester can quickly determine which test point has the problem according to the position of the test point. It can be understood that some test points are reserved and not necessarily useful, so that a tester can also determine the test point to be tested with a developer, and the tester only judges whether the test point to be tested is normal.
Preferably, the test method further comprises:
and controlling the heat dissipation device to cool the PCB.
The PCB is cooled, so that the PCB can work in a normal temperature range, and the test result is more accurate. The type of the heat sink is not limited, and the heat sink may be a heat dissipation fan. The heat sink may also be a water-cooled type of device.
Preferably, before sending the test instruction to the test device, the method further includes:
and supplying power to the PCB, wherein a test program is burnt in the PCB in advance.
The PCB is internally recorded with a test program, so that the PCB can work according to the test program. The test program enables the PCB to work, so that each test point can have signals flowing through, and all the test points can be tested normally. The power supply is provided for the PCB, namely, the power supply is provided for the PCB, and the PCB can work only when the power supply is available.
According to the test method provided by the embodiment, a test file is obtained; acquiring the position information of the test point of the PCB according to the test file; sending a test instruction to the test equipment so that the test equipment controls the mobile device to move the probe of the oscilloscope to the test point position of the PCB respectively according to the test instruction; the test instruction comprises the location information; acquiring a signal waveform diagram of the test point of the PCB through the oscilloscope; the test result is generated according to the signal oscillogram, so that automation and intellectualization of the test are realized, the test speed is accelerated, the test result can be generated without manual intervention after the test file is obtained, the human input is reduced, the error caused by manual measurement is avoided according to the test result, and the measurement accuracy and consistency are improved.
Referring to fig. 6, a third embodiment of the present application also provides a testing method, and based on the foregoing embodiments, the present application provides a solution for adjusting a coordinate system of a mobile device, where the testing method includes:
s21: and acquiring a test file.
S22: and acquiring the position information of the test point of the PCB according to the test file.
S23: and acquiring the origin information of the coordinate system of the PCB according to the test file.
The test file comprises a coordinate system of the PCB, the coordinate system of the PCB comprises an original point of the coordinate system of the PCB, and the original point of the coordinate system of the PCB can be obtained according to the test file. It can be understood that when the origin of the coordinate system of the PCB is obtained, the positions of the test points of the PCB can be obtained simultaneously, that is:
and acquiring the origin of the coordinate system of the PCB and the positions of the test points of the PCB according to the test file.
S24: and adjusting the origin of the coordinate system of the mobile device of the test equipment so that the origin of the coordinate system of the mobile device is consistent with the origin of the coordinate system of the PCB.
The coordinate system of the test base of the mobile device is used to describe the position of the probe head fixed on the robotic arm. The origin of the coordinate system of the test base of the mobile device can be adjusted. When the origin of the coordinate system of the mobile device is consistent with the origin of the coordinate system of the PCB, the test is faster and more accurate.
Referring to fig. 7, adjusting the origin of the coordinate system of the mobile device of the test equipment includes:
s241: and determining the offset of the coordinate system origin of the PCB and the coordinate system origin of the mobile device according to the coordinate system origin information of the PCB and a preset coordinate system origin of the mobile device.
The PCB is placed on a test base of the mobile device. The PCB is placed at a fixed position, the positions of the test points of the PCB are obtained, and the positions of the test points of the PCB are determined positions, namely the position of the origin of a PCB coordinate system is also clear on a test base of the mobile device. The method comprises the steps that the original point of a coordinate system of the mobile device is preset and known, and when the original point information of the coordinate system of the PCB is inconsistent with the original point of the coordinate system of the preset mobile device, the offset between the original point of the coordinate system of the PCB and the original point of the coordinate system of the mobile device can be determined by comparing the original point information of the coordinate system of the PCB with the original point of the coordinate system of the preset mobile device.
S242: and controlling the testing equipment to adjust X/Y axis parameters of a horizontal plane of the mobile device according to the offset so as to adjust the origin of a coordinate system of the mobile device.
The X/Y-axis parameter, i.e. the amount by which the origin of the coordinate system of the mobile device should be changed. If the offset is that the difference between the PCB coordinate system origin information and the preset mobile device coordinate system origin is 1cm in the X-axis direction and 2cm in the Y-axis direction, adjusting the X-axis parameter of the mobile device on the horizontal plane to enable the mobile device coordinate system origin to move 1cm in the X-axis direction towards the PCB coordinate system origin, and enabling the mobile device coordinate system origin to move 2cm in the Y-axis direction towards the PCB coordinate system origin, the mobile device coordinate system origin can be adjusted.
S25: sending a test instruction to the test equipment so that the test equipment controls the mobile device to move the probe of the oscilloscope to the test point position of the PCB respectively according to the test instruction; the test instruction includes the location information.
S26: and acquiring a signal waveform diagram of the test point of the PCB through the oscilloscope.
S27: and generating a test result according to the signal waveform diagram.
According to the test method provided by the embodiment, a test file is obtained; acquiring the position information of the test point of the PCB according to the test file; acquiring the origin of the coordinate system of the PCB according to the test file; adjusting the origin of a coordinate system of a mobile device of the test equipment so that the origin of the coordinate system of the mobile device is consistent with the origin of the coordinate system of the PCB; sending a test instruction to the test equipment so that the test equipment controls the mobile device to move the probe of the oscilloscope to the test point position of the PCB respectively according to the test instruction; the test instruction comprises the location information; acquiring a signal waveform diagram of the test point of the PCB through the oscilloscope; and generating a test result according to the signal oscillogram, so that the test speed can be increased, and the test result is more accurate.
Referring to fig. 8, a fourth embodiment of the present application provides a control device for testing a PCB. The control equipment is electrically connected with the test equipment, the test equipment comprises a mobile device and an oscilloscope, the control equipment can realize the test method of the embodiment, and the control equipment comprises:
a file obtaining module 31, configured to obtain a test file;
a position obtaining module 32, configured to obtain position information of a test point of the printed circuit board PCB according to the test file;
the sending module 33 is configured to send a test instruction to the test equipment, so that the test equipment controls the mobile device to move the probe of the oscilloscope to the test point positions of the PCB according to the test instruction; the test instruction comprises the location information;
the waveform obtaining module 34 is configured to obtain a signal waveform diagram of the test point of the PCB through the oscilloscope;
and a result generating module 35, configured to generate a test result according to the signal waveform diagram.
The control device provided by the embodiment acquires a test file; acquiring the position information of the test point of the PCB according to the test file; sending a test instruction to the test equipment so that the test equipment controls the mobile device to move the probe of the oscilloscope to the test point position of the PCB respectively according to the test instruction; the test instruction comprises the location information; acquiring a signal waveform diagram of the test point of the PCB through the oscilloscope; the test result is generated according to the signal oscillogram, so that automation and intellectualization of the test are realized, the test speed is accelerated, the test result can be generated without manual intervention after the test file is obtained, the human input is reduced, the error caused by manual measurement is avoided according to the test result, and the measurement accuracy and consistency are improved.
Preferably, the file obtaining module 31 is specifically configured to obtain a Gerber file; or acquire a PCB coordinate file.
Preferably, the control device 30 further comprises:
the origin acquisition module is used for acquiring the origin information of the coordinate system of the PCB according to the test file;
and the adjusting module is used for adjusting the origin of the coordinate system of the mobile device of the test equipment so as to enable the origin of the coordinate system of the mobile device to be consistent with the origin of the coordinate system of the PCB.
Preferably, the adjusting module comprises:
the determining unit is used for determining the offset of the coordinate system origin of the PCB and the coordinate system origin of the mobile device according to the coordinate system origin information of the PCB and a preset coordinate system origin of the mobile device;
and the adjusting unit is used for controlling the testing equipment to adjust X/Y axis parameters of the horizontal plane of the mobile device according to the offset so as to adjust the origin of the coordinate system of the mobile device.
Preferably, the control device 30 further comprises:
and the heat dissipation module is used for controlling the heat dissipation device to cool the PCB.
Preferably, the control device 30 further comprises:
and the power supply module is used for supplying power to the PCB, and a test program is burnt in the PCB in advance.
The product can execute the method provided by any embodiment of the application, and has the corresponding functional module and the beneficial effect of the execution method.
Referring to fig. 9, a fifth embodiment of the present application further provides a control device and a storage medium, which both have the corresponding effects of the testing method provided in the foregoing embodiments of the present application.
The control device provided in the embodiment of the present application includes, in addition to the structure of the foregoing embodiment, a memory 41 and a processor 42, where the memory 41 stores a test program, and the processor 42 implements the following steps when executing the test program stored in the memory 41:
acquiring a test file;
acquiring the position information of the test point of the PCB according to the test file;
sending a test instruction to the test equipment so that the test equipment controls the mobile device to move the probe of the oscilloscope to the test point position of the PCB respectively according to the test instruction; the test instruction comprises the location information;
acquiring a signal waveform diagram of the test point of the PCB through the oscilloscope;
and generating a test result according to the signal waveform diagram.
Preferably, the processor of the control device, when executing the test program stored in the memory, further implements the steps of: acquiring a Gerber file; or acquire a PCB coordinate file.
Preferably, the processor of the control device, when executing the test program stored in the memory, further implements the steps of: acquiring origin information of a coordinate system of the PCB according to the test file; and adjusting the origin of the coordinate system of the mobile device so that the origin of the coordinate system of the mobile device of the test equipment is consistent with the origin of the coordinate system of the PCB.
Preferably, the processor of the control device, when executing the test program stored in the memory, further implements the steps of: determining the offset of the coordinate system origin of the PCB and the coordinate system origin of the mobile device according to the coordinate system origin information of the PCB and a preset coordinate system origin of the mobile device; and controlling the testing equipment to adjust X/Y axis parameters of a horizontal plane of the mobile device according to the offset so as to adjust the origin of a coordinate system of the mobile device.
Preferably, the processor of the control device, when executing the test program stored in the memory, further implements the steps of: and controlling the heat dissipation device to cool the PCB.
Preferably, the processor of the control device, when executing the test program stored in the memory, further implements the steps of: and supplying power to the PCB, wherein a test program is burnt in the PCB in advance.
A storage medium provided in an embodiment of the present application is a computer-readable storage medium, in which a test program is stored, and when the test program is executed by a processor, the following steps are specifically implemented:
acquiring a test file;
acquiring the position information of the test point of the PCB according to the test file;
sending a test instruction to the test equipment so that the test equipment controls the mobile device to move the probe of the oscilloscope to the test point position of the PCB respectively according to the test instruction; the test instruction comprises the location information;
acquiring a signal waveform diagram of the test point of the PCB through the oscilloscope;
and generating a test result according to the signal waveform diagram.
Preferably, the test program stored in the computer readable storage medium, when executed by the processor, further implements the following steps: acquiring a Gerber file; or acquire a PCB coordinate file.
Preferably, the test program stored in the computer readable storage medium, when executed by the processor, implements the following steps: acquiring origin information of a coordinate system of the PCB according to the test file; and adjusting the origin of the coordinate system of the mobile device so that the origin of the coordinate system of the mobile device of the test equipment is consistent with the origin of the coordinate system of the PCB.
Preferably, the test program stored in the computer readable storage medium, when executed by the processor, further implements the following steps: determining the offset of the coordinate system origin of the PCB and the coordinate system origin of the mobile device according to the coordinate system origin information of the PCB and a preset coordinate system origin of the mobile device; and controlling the testing equipment to adjust X/Y axis parameters of a horizontal plane of the mobile device according to the offset so as to adjust the origin of a coordinate system of the mobile device.
Preferably, the test program stored in the computer readable storage medium, when executed by the processor, implements the following steps: and controlling the heat dissipation device to cool the PCB.
Preferably, the test program stored in the computer readable storage medium, when executed by the processor, implements the following steps: and supplying power to the PCB, wherein a test program is burnt in the PCB in advance.
The computer-readable storage medium includes Random Access Memory (RAM), Memory, Read-Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, Compact disk Read-Only Memory (CD-ROM), or any other form of storage medium known in the art.
For a description of a relevant part in a test system, a test method, a control device and a storage medium provided in an embodiment of the present application, please refer to a detailed description of a corresponding part in a test system and a test method provided in an foregoing embodiment of the present application, which is not described herein again. In addition, parts of the above technical solutions provided in the embodiments of the present application, which are consistent with the implementation principles of corresponding technical solutions in the prior art, are not described in detail so as to avoid redundant description.
The modules or units described in the embodiments of the present application may be implemented by software or hardware. Where the name of an element does not in some cases constitute a limitation on the element itself.
The above description is only a preferred embodiment of the present application, and not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application, or which are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.
Claims (10)
1. A test system is characterized by comprising control equipment and test equipment, wherein the test equipment comprises a mobile device and an oscilloscope arranged at the tail end of the mobile device, the control equipment is electrically connected with the test equipment, and the oscilloscope is used for displaying a test result,
the control equipment is used for acquiring a test file and acquiring the position information of the test point of the PCB according to the test file; sending a test instruction to the test equipment, wherein the test instruction comprises the position information;
the test equipment controls the mobile device to move the probe of the oscilloscope to the test point position of the PCB respectively according to the test instruction;
the oscilloscope acquires a signal waveform diagram of the test point of the PCB and sends the signal waveform diagram to the control equipment;
and the control equipment generates a test result according to the signal oscillogram.
2. The test system of claim 1, wherein the mobile device comprises a test base and a robotic arm, the PCB being secured to the test base, the probe being mounted to the robotic arm; the test equipment controls the mobile device to move the probe of the oscilloscope to the test point position of the PCB respectively according to the test instruction, and the test equipment specifically comprises:
the test equipment sends the position information to the mobile device according to the test instruction;
and the moving device controls the probes of the oscilloscope to move to the positions of the test points of the PCB respectively through the mechanical arm.
3. A test method is applied to control equipment, the control equipment is electrically connected with test equipment, the test equipment comprises a mobile device and an oscilloscope, and the method comprises the following steps:
acquiring a test file;
acquiring the position information of the test point of the PCB according to the test file;
sending a test instruction to the test equipment so that the test equipment controls the mobile device to move the probe of the oscilloscope to the test point position of the PCB respectively according to the test instruction; the test instruction comprises the location information;
acquiring a signal waveform diagram of the test point of the PCB through the oscilloscope;
and generating a test result according to the signal waveform diagram.
4. The testing method of claim 3, wherein the obtaining the test file comprises:
acquiring a Gerber file; or
And acquiring a PCB coordinate file.
5. The test method of claim 3, wherein prior to said sending test instructions to said test device, said test method further comprises:
acquiring origin information of a coordinate system of the PCB according to the test file;
and adjusting the origin of the coordinate system of the mobile device of the test equipment so that the origin of the coordinate system of the mobile device is consistent with the origin of the coordinate system of the PCB.
6. The method according to claim 5, wherein the adjusting the origin of the coordinate system of the mobile device of the test apparatus comprises:
determining the offset of the coordinate system origin of the PCB and the coordinate system origin of the mobile device according to the coordinate system origin information of the PCB and a preset coordinate system origin of the mobile device;
and controlling the testing equipment to adjust X/Y axis parameters of a horizontal plane of the mobile device according to the offset so as to adjust the origin of a coordinate system of the mobile device.
7. The utility model provides a control equipment, control equipment and test equipment electric connection, test equipment includes mobile device and oscilloscope, its characterized in that, control equipment includes:
the file acquisition module is used for acquiring a test file;
the position acquisition module is used for acquiring the position information of the test point of the PCB according to the test file;
the sending module is used for sending a test instruction to the test equipment so that the test equipment controls the mobile device to move the probe of the oscilloscope to the test point position of the PCB respectively according to the test instruction; the test instruction comprises the location information;
the waveform acquisition module is used for acquiring a signal waveform diagram of the test point of the PCB through the oscilloscope;
and the result generation module is used for generating a test result according to the signal oscillogram.
8. The control device according to claim 7, characterized in that the control device further comprises:
the origin acquisition module is used for acquiring the origin information of the coordinate system of the PCB according to the test file;
and the adjusting module is used for adjusting the origin of the coordinate system of the mobile device of the test equipment so as to enable the origin of the coordinate system of the mobile device to be consistent with the origin of the coordinate system of the PCB.
9. The utility model provides a control equipment, control equipment and test equipment electric connection, test equipment includes mobile device and oscilloscope, its characterized in that, control equipment includes:
a memory for storing a test program;
a processor for implementing the test method of any one of claims 3 to 6 when executing the test program.
10. A storage medium, which is a computer-readable storage medium, characterized in that the storage medium has stored therein a test program, which when executed by a processor implements the test method according to any one of claims 3 to 6.
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