Circuit board detection device, method and system and medium

Abstract

The invention provides a circuit board detection device, method and system and a medium, and relates to the technical field of power electronics, and the device comprises a power module which is electrically connected with a main control module and a switch module; the main control module is also electrically connected with the upper computer, the switch module and the to-be-tested circuit board respectively; the switch module is also electrically connected with the circuit board to be tested; the main control module is used for acquiring a control signal from an upper computer and sending a conduction signal to the switch module according to the control signal; the switch module is used for being switched on when receiving the switch-on signal, so that the power supply module is electrically connected with the circuit board to be tested; the to-be-tested circuit board is used for sending a target signal to the main control module when the electric signal is acquired from the power supply module; and the main control module is also used for determining a fault detection result of the to-be-detected circuit board according to the target signal. According to the invention, the fault of each to-be-detected point on the to-be-detected circuit board is automatically detected and positioned, and the detection cost is reduced while the detection efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of power electronics technology, and in particular to a circuit board detection device, method, system and medium. Background Art

[0002] Printed Circuit Board Assembly (PCBA) is the basic platform for connecting all components inside a solid state drive (SSD). It is used to carry electronic components and provide paths for power and signal transmission for each electronic component.

[0003] It is very important to quickly detect and locate the open circuit or short circuit problem on the PCBA. However, in the prior art, the method of detecting faults on the PCBA mainly relies on manual inspection, which is inefficient, costly and prone to errors. Summary of the invention

[0004] In view of this, the purpose of the present invention is to overcome the deficiencies in the prior art and provide a circuit board detection device, method, system and medium. The present invention provides the following technical solutions:

[0005] In a first aspect, the present invention provides a circuit board detection device, the device comprising: a power module, a main control module and a switch module; the power module is electrically connected to the main control module and the switch module respectively; the main control module is also electrically connected to a host computer, the switch module and a circuit board to be tested respectively; the switch module is also electrically connected to the circuit board to be tested;

[0006] The main control module is used to obtain a control signal from the host computer and send a conduction signal to the switch module according to the control signal; the switch module is used to be turned on when receiving the conduction signal so that the power module is electrically connected to the circuit board to be tested; the circuit board to be tested is used to send a target signal to the main control module when obtaining an electrical signal from the power module; the main control module is also used to perform a detection operation on the circuit board to be tested according to the target signal to determine a fault detection result of the circuit board to be tested.

[0007] In one embodiment, the switch module includes a plurality of switch units, and the circuit board to be tested includes a plurality of points to be tested; one end of each of the switch units is electrically connected to the power module, and the other end of each of the switch units is electrically connected to one of the points to be tested;

[0008] The main control module is used to determine the target switch unit from the multiple switch units according to the control signal, and send the conduction signal to the target switch unit; the target switch unit is used to be turned on when receiving the conduction signal, so that the target point to be tested is electrically connected to the power module, and the target point to be tested is the point to be tested that is electrically connected to the target switch unit; the target point to be tested is used to send the target signal to the main control module when the electrical signal is obtained from the power module; the main control module is also used to perform a detection operation on the circuit board to be tested according to the target signal to determine the fault detection result of the target point to be tested.

[0009] In one embodiment, the target signal includes a current signal or a voltage signal, and the device further includes: an interaction module and a selection module; the interaction module is electrically connected to the selection module; the selection module is also electrically connected to the circuit board to be tested;

[0010] The interaction module is used to obtain an interaction signal and send a selection signal to the selection module according to the interaction signal; the selection module is used to send a first measurement signal or a second measurement signal to the circuit board under test according to the selection signal; the circuit board under test is also used to send the current signal to the main control module when the first measurement signal is received; and send a voltage signal to the main control module when the second measurement signal is received.

[0011] In one embodiment, the fault detection result includes: short circuit, open circuit or normal, and the main control module includes: a current comparison unit, and the current comparison unit is electrically connected to each of the points to be tested;

[0012] The current comparison unit is used to obtain the current signal and determine the current value of the target point to be tested according to the current signal; if the difference between the current current value and the first preset current threshold value falls within the preset current difference range, it is determined that the target point to be tested is short-circuited; if the difference between the current current value and the second preset current threshold value falls within the preset current difference range, it is determined that the target point to be tested is open-circuited; if the current current value falls within the preset current range, it is determined that the target point to be tested is normal.

[0013] In one embodiment, the main control module includes: a voltage comparison unit, which is electrically connected to each of the test points respectively; the voltage comparison unit is used to obtain the voltage signal and determine the current voltage value of the target test point according to the voltage signal; if the difference between the current voltage value and the first preset voltage threshold falls within the preset voltage difference range, it is determined that the target test point is short-circuited; if the difference between the current voltage value and the second preset voltage threshold falls within the preset voltage difference range, it is determined that the target test point is open-circuited; if the current voltage value falls within the preset voltage range, it is determined that the target test point is normal.

[0014] In one embodiment, the interaction module is also electrically connected to the main control module; the main control module is used to send a warning signal to the interaction module when the target test point is short-circuited or open-circuited; the interaction module is used to issue a warning prompt message when the warning signal is obtained.

[0015] In one embodiment, the interactive module includes: a display unit electrically connected to the main control module; the display unit is used to obtain the current current value or the current voltage value from the main control module and display the current current value or the current voltage value.

[0016] In a second aspect, the present invention provides a circuit board detection method, which is applied to the circuit board detection device described in the first aspect, and the method includes: a main control module obtains a control signal from the host computer, and sends a conduction signal to a switch module according to the control signal; when the conduction signal is received, the switch module is turned on so that a power supply module is electrically connected to the circuit board to be tested; when an electrical signal is obtained from the power supply module, the circuit board to be tested sends a target signal to the main control module; the main control module performs a detection operation on the circuit board to be tested according to the target signal to determine a fault detection result of the circuit board to be tested.

[0017] In a third aspect, the present invention provides a circuit board detection system, the system comprising: a host computer and at least one circuit board detection device as described in the first aspect; the host computer is electrically connected to the circuit board detection device.

[0018] In a fourth aspect, the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the circuit board detection method described in the second aspect is implemented.

[0019] The circuit board detection device, method, system and medium provided by the present invention, the device includes: a power module, a main control module and a switch module; the power module is electrically connected to the main control module and the switch module respectively; the main control module is also electrically connected to the host computer, the switch module and the circuit board to be tested respectively; the switch module is also electrically connected to the circuit board to be tested; the main control module is used to obtain a control signal from the host computer and send a conduction signal to the switch module according to the control signal; the switch module is used to conduct when receiving the conduction signal, so that the power module is electrically connected to the circuit board to be tested; the circuit board to be tested is used to send a target signal to the main control module when an electrical signal is obtained from the power module; the main control module is also used to perform a detection operation on the circuit board to be tested according to the target signal to determine the fault detection result of the circuit board to be tested. The present application realizes automatic detection and positioning of faults at each test point on the circuit board to be tested, while improving detection efficiency and reducing detection costs.

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 A schematic diagram of the structure of a circuit board detection device provided by an embodiment of the present invention is shown;

[0023] Figure 2 Another schematic diagram of the structure of the circuit board detection device provided by the embodiment of the present invention is shown;

[0024] Figure 3 Another structural schematic diagram of a circuit board detection device provided by an embodiment of the present invention is shown;

[0025] Figure 4 A schematic diagram of a process of a circuit board detection method provided by an embodiment of the present invention is shown;

[0026] Figure 5 A schematic structural diagram of a circuit board detection system provided by an embodiment of the present invention is shown.

[0027] Description of main component symbols:

[0028] 100 - circuit board detection device; 110 - power module; 120 - main control module; 130 - switch module; 140 - interaction module; 150 - selection module; 200 - circuit board to be tested; 300 - host computer; 500 - circuit board detection system. DETAILED DESCRIPTION

[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of the template are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0032] Printed Circuit Board Assembly (PCBA) is the basic platform for connecting all components inside a solid state drive (SSD). In order to improve the production efficiency and product quality of SSD, it is very important to quickly detect and locate the open circuit or short circuit position on the PCBA.

[0033] For this, see Figure 1 The embodiment of the present application provides a circuit board detection device 100, which includes: a power module 110, a main control module 120 and a switch module 130; the power module 110 is electrically connected to the main control module 120 and the switch module 130 respectively; the main control module 120 is also electrically connected to the host computer 300, the switch module 130 and the circuit board 200 to be tested respectively; the switch module 130 is also electrically connected to the circuit board 200 to be tested.

[0034] In this embodiment, the power module 110 is used to provide power to the main control module 120 and the switch module 130 respectively. Specifically, the power module 110 includes: a voltage regulator and a power management chip, wherein the voltage regulator model is LM7805, and the power management chip model is TPS7A4700. It can be understood that the models of the components in the power module 110 can be selected according to the actual situation, which is only used as an example and is not limited.

[0035] The circuit board 200 to be tested includes multiple test points. In order to detect whether each test point has an open circuit or short circuit fault, each test point is electrically connected to the switch module 130 respectively, and the on-off state of each switch unit in the switch module 130 is controlled to detect each test point on the circuit board 200 to be tested respectively.

[0036] The main control module 120 is used to obtain a control signal from the host computer 300 and send a conduction signal to the switch module 130 according to the control signal; the switch module 130 is used to be turned on when receiving the conduction signal so that the power module 110 is electrically connected to the circuit board 200 under test; the circuit board 200 under test is used to send a target signal to the main control module 120 when an electrical signal is obtained from the power module 110; the main control module 120 is also used to perform a detection operation on the circuit board 200 under test according to the target signal to determine a fault detection result of the circuit board 200 under test.

[0037] In this embodiment, the power module 110 is electrically connected to the circuit board 200 to be tested through the switch module 130, so that a path is formed between the power module 110 and the circuit board 200 to be tested, and the power module 110 provides electrical energy, that is, an electrical signal, to the circuit board 200 to be tested. When the electrical signal is obtained from the power module 110, the circuit board 200 to be tested sends a target signal to the main control module 120. It should be noted that the target signal includes a current signal or a voltage signal. The main control module 120 determines the fault detection result of the circuit board 200 to be tested, for example, open circuit, short circuit or normal, according to the obtained current signal or voltage signal.

[0038] In one embodiment, the switch module 130 includes a plurality of switch units, and the circuit board to be tested 200 includes a plurality of points to be tested; one end of each of the switch units is electrically connected to the power module 110, and the other end of each of the switch units is electrically connected to one of the points to be tested;

[0039] The main control module 120 is used to determine the target switch unit from the multiple switch units according to the control signal, and send the conduction signal to the target switch unit; the target switch unit is used to be turned on when receiving the conduction signal, so that the target point to be tested is electrically connected to the power module 110, and the target point to be tested is the point to be tested that is electrically connected to the target switch unit; the target point to be tested is used to send the target signal to the main control module 120 when the electrical signal is obtained from the power module 110; the main control module 120 is also used to perform a detection operation on the circuit board 200 to be tested according to the target signal to determine the fault detection result of the target point to be tested.

[0040] It can be understood that the fault detection result of the circuit board 200 to be tested includes the fault detection result of each test point on the circuit board 200 to be tested. In this embodiment, a control signal is sent to the main control module 120 to determine a target switch unit from a plurality of switch units, and the target switch unit is controlled to be turned on to perform fault detection on the test point electrically connected to the target switch unit, that is, the target test point, to obtain the fault detection result of the target test point, such as short circuit, open circuit or normal.

[0041] It should be noted that, in other embodiments, a control signal may be sent to the main control module 120 so that the main control module 120 controls each switch unit in the switch module 130 to be turned on one by one, so as to achieve continuous batch detection of each test point on the circuit board 200 to be tested.

[0042] In one embodiment, the target signal includes a current signal or a voltage signal, see Figure 2 , the device further includes: an interaction module 140 and a selection module 150; the interaction module 140 is electrically connected to the selection module 150; the selection module 150 is also electrically connected to the circuit board 200 to be tested;

[0043] The interaction module 140 is used to obtain an interaction signal and send a selection signal to the selection module 150 according to the interaction signal; the selection module 150 is used to send a first measurement signal or a second measurement signal to the circuit board 200 under test according to the selection signal; the circuit board 200 under test is also used to send the current signal to the main control module 120 when the first measurement signal is received; and send a voltage signal to the main control module 120 when the second measurement signal is received.

[0044] In this embodiment, after the circuit board 200 to be tested is electrically connected to the power module 110 through the switch module 130, an electrical signal is obtained from the power module 110, and a target signal is sent to the main control module 120, wherein the target signal includes: a current signal or a voltage signal. The switching of the measurement mode is realized by sending an interactive signal to the interactive module 140. Specifically, the selection module 150 sends a first measurement signal to the circuit board 200 to enable the circuit board 200 to send a current signal to the main control module 120 when the circuit board 200 to be tested obtains electrical energy from the power module 110; the selection module 150 sends a second measurement signal to the circuit board 200 to enable the circuit board 200 to send a voltage signal to the main control module 120 when the circuit board 200 to be tested obtains electrical energy from the power module 110.

[0045] In one embodiment, the fault detection result includes: short circuit, open circuit or normal, and the main control module 120 includes: a current comparison unit, which is electrically connected to each of the test points respectively; the current comparison unit is used to obtain the current signal and determine the current value of the target test point according to the current signal; if the difference between the current current value and the first preset current threshold value belongs to the preset current difference range, the target test point is determined to be short-circuited; if the difference between the current current value and the second preset current threshold value belongs to the preset current difference range, the target test point is determined to be open-circuited; if the current current value belongs to the preset current range, the target test point is determined to be normal.

[0046] In this embodiment, the current comparison unit has a first preset current threshold and a second preset current threshold pre-stored therein. When the current comparison unit obtains the corresponding current value from the target point to be tested, the fault detection result of the target point to be tested can be determined by comparing the current current value with the first current threshold and the second current threshold. For example, if the current current value is approximately equal to the first current threshold, the target point to be tested is determined to be short-circuited; if the current current value is approximately equal to the second current threshold, the target point to be tested is determined to be short-circuited; if the current current value falls within the preset current range, the target point to be tested is determined to be normal and no fault has occurred. The main control module 120 records the fault detection results of each point to be tested.

[0047] In other embodiments, the circuit board detection device 100 further includes a batch test control module. When the main control module 120 is electrically connected to a plurality of circuit boards 200 to be tested, the batch test control module is connected in series between the main control module 120 and each circuit board 200 to be tested, and is used to obtain at least one conduction signal from the main control module 120, and send each conduction signal to the corresponding circuit board 200 to be tested, so as to achieve batch testing of each circuit board 200 to be tested, thereby improving the test efficiency. Specifically, the batch test control module includes: a micro control unit, a multiplexing unit and a relay unit, wherein the micro control unit is electrically connected to the multiplexing unit and the relay unit, respectively.

[0048] In one embodiment, the main control module 120 includes: a voltage comparison unit, which is electrically connected to each of the test points respectively; the voltage comparison unit is used to obtain the voltage signal and determine the current voltage value of the target test point according to the voltage signal; if the difference between the current voltage value and the first preset voltage threshold value belongs to the preset voltage difference range, it is determined that the target test point is short-circuited; if the difference between the current voltage value and the second preset voltage threshold value belongs to the preset voltage difference range, it is determined that the target test point is open-circuited; if the current voltage value belongs to the preset voltage range, it is determined that the target test point is normal.

[0049] In this embodiment, the voltage comparison unit has a first preset voltage threshold and a second preset voltage threshold pre-stored therein. When the voltage comparison unit obtains the corresponding current voltage value from the target point to be tested, the fault detection result of the target point to be tested can be determined by comparing the current voltage value with the first voltage threshold and the second voltage threshold. For example, if the current voltage value is approximately equal to the first voltage threshold, the target point to be tested is determined to be short-circuited; if the current voltage value is approximately equal to the second voltage threshold, the target point to be tested is determined to be short-circuited; if the current voltage value falls within the preset voltage range, the target point to be tested is determined to be normal and no fault has occurred. The main control module 120 records the fault detection results of each point to be tested.

[0050] In one embodiment, see Figure 3 The interactive module 140 is also electrically connected to the main control module 120; the main control module 120 is used to send an early warning signal to the interactive module 140 when the target test point is short-circuited or open-circuited; the interactive module 140 is used to issue an early warning prompt message when the early warning signal is obtained.

[0051] It can be understood that when it is determined that the target test point is open circuit or short circuit, the main control module 120 sends a warning signal to the interactive module 140 to control the interactive module 140 to issue a warning prompt message. Among them, the interactive module 140 includes: a buzzer, a warning light or other prompt elements. When receiving the warning signal, the interactive module 140 issues a warning prompt message, for example: the buzzer sounds or the warning light flashes.

[0052] In one embodiment, the interaction module 140 includes: a display unit electrically connected to the main control module 120; the display unit is used to obtain the current current value or the current voltage value from the main control module 120 and display the current current value or the current voltage value.

[0053] In this embodiment, for easy observation, the interactive module 140 further includes a display unit for displaying the current current value or the current voltage value sent by the currently detected target test point to the main control module 120. In other embodiments, a record table or log may be generated according to the current current value or the current voltage value of each test point and displayed through the display unit.

[0054] The embodiment of the present application provides a circuit board detection device, the device includes: a power module, a main control module and a switch module; the power module is electrically connected to the main control module and the switch module respectively; the main control module is also electrically connected to the host computer, the switch module and the circuit board to be tested respectively; the switch module is also electrically connected to the circuit board to be tested; the main control module is used to obtain a control signal from the host computer and send a conduction signal to the switch module according to the control signal; the switch module is used to conduct when receiving the conduction signal, so that the power module is electrically connected to the circuit board to be tested; the circuit board to be tested is used to send a target signal to the main control module when an electrical signal is obtained from the power module; the main control module is also used to perform a detection operation on the circuit board to be tested according to the target signal to determine the fault detection result of the circuit board to be tested. The present application realizes automatic detection and positioning of faults at each test point on the circuit board to be tested, which improves the detection efficiency and reduces the detection cost.

[0055] Also, see Figure 4 The embodiment of the present application further provides a circuit board detection method, which is applied to the circuit board detection device 100 described in Example 1. The method includes: steps S410 to S440.

[0056] S410, the main control module obtains a control signal from the host computer, and sends a conduction signal to the switch module according to the control signal.

[0057] S420, when the conduction signal is received, the switch module is turned on so that the power module is electrically connected to the circuit board to be tested.

[0058] S430, when the electrical signal is obtained from the power module, the circuit board to be tested sends a target signal to the main control module.

[0059] S440, the main control module performs a detection operation on the circuit board to be tested according to the target signal to determine a fault detection result of the circuit board to be tested.

[0060] The circuit board detection method provided in the embodiment of the present invention is applied to the circuit board detection device 100 provided in the above-mentioned embodiment 1, and will not be described again here to avoid repetition.

[0061] A circuit board detection method provided in an embodiment of the present application obtains a control signal from the host computer through a main control module, and sends a conduction signal to a switch module according to the control signal; when the conduction signal is received, the switch module is turned on to electrically connect the power module to the circuit board to be tested; when an electrical signal is obtained from the power module, the circuit board to be tested sends a target signal to the main control module; the main control module performs a detection operation on the circuit board to be tested according to the target signal to determine a fault detection result of the circuit board to be tested, thereby realizing automatic detection and positioning of faults at each test point on the circuit board to be tested, improving detection efficiency while reducing detection costs.

[0062] Also, see Figure 5 The embodiment of the present invention further provides a circuit board detection system 500, comprising: a host computer 300 and at least one circuit board detection device 100 described in Embodiment 1; the host computer 300 is electrically connected to the circuit board detection device 100.

[0063] Specifically, the circuit board detection device 100 includes: a power supply module 110, a main control module 120 and a switch module 130; the power supply module 110 is electrically connected to the main control module 120 and the switch module 130 respectively; the main control module 120 is also electrically connected to the host computer 300, the switch module 130 and the circuit board 200 to be tested respectively; the switch module 130 is also electrically connected to the circuit board 200 to be tested.

[0064] The main control module 120 is used to obtain a control signal from the host computer 300 and send a conduction signal to the switch module 130 according to the control signal; the switch module 130 is used to be turned on when receiving the conduction signal so that the power module 110 is electrically connected to the circuit board 200 under test; the circuit board 200 under test is used to send a target signal to the main control module 120 when an electrical signal is obtained from the power module 110; the main control module 120 is also used to perform a detection operation on the circuit board 200 under test according to the target signal to determine a fault detection result of the circuit board 200 under test.

[0065] In one embodiment, the switch module 130 includes a plurality of switch units, and the circuit board to be tested 200 includes a plurality of points to be tested; one end of each of the switch units is electrically connected to the power module 110, and the other end of each of the switch units is electrically connected to one of the points to be tested;

[0066] The main control module 120 is used to determine the target switch unit from the multiple switch units according to the control signal, and send the conduction signal to the target switch unit; the target switch unit is used to be turned on when receiving the conduction signal, so that the target point to be tested is electrically connected to the power module 110, and the target point to be tested is the point to be tested that is electrically connected to the target switch unit; the target point to be tested is used to send the target signal to the main control module 120 when the electrical signal is obtained from the power module 110; the main control module 120 is also used to perform a detection operation on the circuit board 200 to be tested according to the target signal to determine the fault detection result of the target point to be tested.

[0067] In one embodiment, the target signal includes a current signal or a voltage signal, and the device further includes: an interaction module 140 and a selection module 150; the interaction module 140 is electrically connected to the selection module 150; the selection module 150 is also electrically connected to the circuit board 200 to be tested;

[0068] The interaction module 140 is used to obtain an interaction signal and send a selection signal to the selection module 150 according to the interaction signal; the selection module 150 is used to send a first measurement signal or a second measurement signal to the circuit board 200 under test according to the selection signal; the circuit board 200 under test is also used to send the current signal to the main control module 120 when the first measurement signal is received; and send a voltage signal to the main control module 120 when the second measurement signal is received.

[0069] In one embodiment, the fault detection result includes: short circuit, open circuit or normal, and the main control module 120 includes: a current comparison unit, which is electrically connected to each of the test points respectively; the current comparison unit is used to obtain the current signal and determine the current value of the target test point according to the current signal; if the difference between the current current value and the first preset current threshold value belongs to the preset current difference range, the target test point is determined to be short-circuited; if the difference between the current current value and the second preset current threshold value belongs to the preset current difference range, the target test point is determined to be open-circuited; if the current current value belongs to the preset current range, the target test point is determined to be normal.

[0070] In one embodiment, the main control module 120 includes: a voltage comparison unit, which is electrically connected to each of the test points respectively; the voltage comparison unit is used to obtain the voltage signal and determine the current voltage value of the target test point according to the voltage signal; if the difference between the current voltage value and the first preset voltage threshold value belongs to the preset voltage difference range, it is determined that the target test point is short-circuited; if the difference between the current voltage value and the second preset voltage threshold value belongs to the preset voltage difference range, it is determined that the target test point is open-circuited; if the current voltage value belongs to the preset voltage range, it is determined that the target test point is normal.

[0071] In one embodiment, the interaction module 140 is also electrically connected to the main control module 120; the main control module 120 is used to send a warning signal to the interaction module 140 when the target test point is short-circuited or open-circuited; the interaction module 140 is used to issue a warning prompt message when the warning signal is obtained.

[0072] In one embodiment, the interaction module 140 includes: a display unit electrically connected to the main control module 120; the display unit is used to obtain the current current value or the current voltage value from the main control module 120 and display the current current value or the current voltage value.

[0073] The circuit board detection system 500 provided in the embodiment of the present invention can implement the functions of the circuit board detection device 100 provided in the above-mentioned embodiment 1, and will not be described again here to avoid repetition.

[0074] In addition, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the circuit board detection method provided in Example 2 is implemented.

[0075] In this embodiment, the computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0076] The computer-readable storage medium provided in this embodiment can implement the circuit board detection method provided in Embodiment 2, and will not be described again here to avoid repetition.

[0077] In all examples shown and described herein, any specific values ​​should be interpreted as merely exemplary and not as limiting, and thus other examples of the exemplary embodiments may have different values.

[0078] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0079] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A circuit board detection device, characterized in that: The device comprises: a power module, a main control module and a switch module; The power supply module is electrically connected to the main control module and the switch module respectively; The main control module is also electrically connected to the host computer, the switch module and the circuit board to be tested respectively; The switch module is also electrically connected to the circuit board to be tested; The main control module is used to obtain a control signal from the host computer and send a conduction signal to the switch module according to the control signal; The switch module is used to be turned on when receiving the conduction signal, so that the power module is electrically connected to the circuit board to be tested; The circuit board to be tested is used to send a target signal to the main control module when acquiring an electrical signal from the power module; The main control module is further used to perform a detection operation on the circuit board to be tested according to the target signal to determine a fault detection result of the circuit board to be tested.

2. The circuit board detection device according to claim 1, characterized in that: The switch module includes a plurality of switch units, and the circuit board to be tested includes a plurality of points to be tested; One end of each of the switch units is electrically connected to the power module, and the other end of each of the switch units is electrically connected to a point to be measured. The main control module is used to determine a target switch unit from the plurality of switch units according to the control signal, and send the conduction signal to the target switch unit; The target switch unit is used to be turned on when receiving the conduction signal, so that the target point to be tested is electrically connected to the power module, and the target point to be tested is the point to be tested that is electrically connected to the target switch unit; The target point to be tested is used to send the target signal to the main control module when the electrical signal is acquired from the power module; The main control module is further used to perform a detection operation on the circuit board to be tested according to the target signal to determine the fault detection result of the target point to be tested.

3. The circuit board detection device according to claim 1 or 2, characterized in that: The target signal includes a current signal or a voltage signal, and the device further includes: an interaction module and a selection module; The interaction module is electrically connected to the selection module; The selection module is also electrically connected to the circuit board to be tested; The interaction module is used to obtain an interaction signal and send a selection signal to the selection module according to the interaction signal; The selection module is used to send a first measurement signal or a second measurement signal to the circuit board to be tested according to the selection signal; The circuit board to be tested is further configured to send the current signal to the main control module when the first measurement signal is received; and send the voltage signal to the main control module when the second measurement signal is received.

4. The circuit board detection device according to claim 3, characterized in that: The fault detection result includes: short circuit, open circuit or normal, and the main control module includes: a current comparison unit, and the current comparison unit is electrically connected to each of the points to be tested; The current comparison unit is used to obtain the current signal and determine the current current value of the target point to be measured according to the current signal; If the difference between the current current value and the first preset current threshold value falls within the preset current difference range, it is determined that the target point to be tested is short-circuited; If the difference between the current current value and the second preset current threshold value falls within the preset current difference range, determining that the target point to be tested is open circuit; If the current current value belongs to the preset current range, it is determined that the target test point is normal.

5. The circuit board detection device according to claim 3, characterized in that: The main control module comprises: a voltage comparison unit, wherein the voltage comparison unit is electrically connected to each of the points to be tested; The voltage comparison unit is used to obtain the voltage signal and determine the current voltage value of the target point to be tested according to the voltage signal; If the difference between the current voltage value and the first preset voltage threshold value falls within the preset voltage difference range, it is determined that the target point to be tested is short-circuited; If the difference between the current voltage value and the second preset voltage threshold value falls within the preset voltage difference range, determining that the target point to be tested is open circuit; If the current voltage value belongs to the preset voltage range, it is determined that the target test point is normal.

6. The circuit board detection device according to claim 4 or 5, characterized in that: The interaction module is also electrically connected to the main control module; The main control module is used to send an early warning signal to the interactive module when the target test point is short-circuited or open-circuited; The interaction module is used to issue a warning prompt message when the warning signal is obtained.

7. The circuit board detection device according to claim 6, characterized in that: The interactive module includes: a display unit electrically connected to the main control module; The display unit is used to obtain the current current value or the current voltage value from the main control module and display the current current value or the current voltage value.

8. A circuit board detection method, characterized in that: The circuit board detection device applied to any one of claims 1 to 7, the method comprising: The main control module obtains a control signal from the host computer, and sends a conduction signal to the switch module according to the control signal; When receiving the conduction signal, the switch module is turned on so that the power module is electrically connected to the circuit board to be tested; When an electrical signal is obtained from the power module, the circuit board to be tested sends a target signal to the main control module; The main control module performs a detection operation on the circuit board to be tested according to the target signal to determine a fault detection result of the circuit board to be tested.

9. A circuit board detection system, characterized in that: The system comprises: a host computer and at least one circuit board detection device according to any one of claims 1 to 7; the host computer is electrically connected to the circuit board detection device.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the circuit board detection method of claim 8 is implemented.

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