Portable printed board tester, testing method and medium

Abstract

The portable printed board tester comprises a box body, the box body comprises an upper cover plate, a bottom plate, a front plate, a rear plate, a left side plate and a right side plate, and a test operation panel, a first supporting plate, a first containing cavity, a second containing cavity and a third containing cavity are further arranged in the box body; the test module is arranged in the first accommodating cavity, and the test module is used for controlling and testing the PCB to obtain information parameters of the PCB; the control module is arranged in the second accommodating cavity, and is used for acquiring a high-voltage signal and a waveform of the PCB, converting and connecting different types of electronic interfaces or communication standards, and adjusting the portable printed board tester according to information parameters; the data processing module is used for supporting and providing various data transmission protocols to the control module and carrying out data acquisition; the display module is used for converting electronic signals of the PCB into images, characters or data. According to the technical scheme of the embodiment, the test efficiency can be improved, and the test cost can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of aerospace electronic system maintenance and testing, and particularly relates to a portable printed circuit board tester, a testing method, and a medium. Background Art

[0002] Currently, there are still some deficiencies in existing printed circuit board testers. The testing accuracy and depth are limited. Due to the volume and cost limitations of the testers, they usually cannot provide the same high precision and high resolution as large-scale, professional testing instruments (such as flying probe test systems, automated test equipment, etc.), resulting in inaccurate testing for some high-frequency, tiny signals, or complex circuits. The testers usually focus on basic connectivity testing, conventional detections such as voltage and current, and have limited capabilities for more complex signal analysis or comprehensive testing of multi-layer circuits. For example, in aspects such as signal integrity, timing analysis, and multi-point testing of complex circuits, their testing capabilities are weak. The existing printed circuit board testers have a slow testing speed. Although the testers provide corresponding convenience in on-site applications, compared with large-scale testing equipment, their testing speed is usually slow, which is mainly related to the performance limitations of their hardware and software. Especially when facing complex circuits, it may take a long time to complete a comprehensive test. The existing printed circuit board testers have poor adaptability to complex circuits. With the complication of modern PCB designs, especially multi-layer PCB circuits, portable testers may not be able to effectively test all levels of circuit connections or locate some hidden fault points. For example, deep signal faults or internal connection problems may be ignored by portable testers, especially in the case of no good contact points. For some high-density PCB designs, especially circuits with very dense component arrangements or using BGA (Ball Grid Array) packages, the contact methods and testing accuracy of portable testers may not meet the requirements, resulting in failures not being detected in a timely manner. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. For this purpose, the present invention provides a portable printed circuit board tester, a testing method, and a medium, which can improve testing efficiency, reduce testing costs, simplify operations, and increase flexibility.

[0004] In a first aspect, an embodiment of the present invention provides a portable printed circuit board tester, comprising:

[0005] Box body, the box body includes an upper cover plate, a bottom plate, a front plate, a rear plate, a left side plate and a right side plate. The upper cover plate is respectively connected to one ends of the front plate, the rear plate, the left side plate and the right side plate. The other ends of the front plate, the rear plate, the left side plate and the right side plate are all connected to the bottom plate. A test operation panel and a first support plate are further arranged in the box body. One side of the test operation panel and the upper cover plate form a first accommodation cavity of the box body. The other side of the test operation panel and one side of the first support plate form a second accommodation cavity of the box body. The other side of the first support plate and the bottom plate form a third accommodation cavity of the box body;

[0006] Test module, the test module is arranged in the first accommodation cavity. The test module is used to control and test the PCB board to obtain information parameters of the PCB board;

[0007] Control module, the control module is arranged in the second accommodation cavity. The control module is used to acquire high-voltage signals and waveforms of the PCB board, convert and connect between different types of electronic interfaces or communication standards, and adjust the portable printed board tester according to the information parameters;

[0008] Data processing module, the data processing module is arranged on the left side plate, the rear plate and the bottom plate. The data processing module is used to support and provide multiple data transmission protocols to the control module and collect data of the PCB board;

[0009] Display module, the display module is arranged on the front plate. The display module is used to convert the electronic signals of the PCB board into images, texts or data.

[0010] In some embodiments of the present invention, the test module includes a test upper plate, an insulating plate layer, a first test board card and a bottom test pin board placed in sequence from top to bottom. The test upper plate is provided with a plurality of simulated printed boards, test quick clamps, flip cover pressing plates, DTU positioning seats and simulated printed boards. The test quick clamps are arranged in the middle of the test upper plate. One end of the DTU positioning seat is connected to the test upper plate. The other end of the DTU positioning seat is connected to the flip cover pressing plate. A hinge seat is arranged between the flip cover pressing plate and the test upper plate. The DTU positioning seat is provided with a first placement groove. The flip cover pressing plate is provided with a second placement groove. The simulated printed boards are arranged in the first placement groove and the second placement groove. The positions of the first placement groove and the second placement groove are adapted to each other. The first test board card is provided with a plurality of test pins. The test pins are connected to the simulated printed boards.

[0011] In some embodiments of the present invention, the data processing module includes a BCM socket, a multimeter socket, an Ethernet connection socket, a power socket, a DB9 connector, an indicator light, a start switch, a power filter, a USB interface, and a fan. The BCM socket, the multimeter socket, and the USB interface are all arranged on the right side plate. The Ethernet connection socket, the power socket, and the DB9 connector are all arranged on the rear plate. The indicator light and the start switch are arranged on the upper cover plate. The power filter and the fan are both arranged in the third accommodation cavity.

[0012] In some embodiments of the present invention, the display module is provided with a first fixing plate, a display panel, tempered glass, and a display screen. One side of the fixing plate is connected to the front plate. The periphery of the fixing plate is provided with a first limiting portion. The middle of the other side of the fixing plate is provided with a second limiting portion. The display panel is connected to the fixing plate through the first limiting portion. The display panel is provided with a third placement groove, and the tempered glass is placed in the third placement groove.

[0013] In some embodiments of the present invention, the first limiting portion is provided with a first fixing unit. The first fixing unit includes a first extending plane, a first fixing member, a buckle, and a first positioning member. The first extending plane is provided with a first opening. The first positioning member is installed at the first opening. One end of the buckle is connected to the front plate, and the other end of the buckle is connected to the first opening. The first fixing member is arranged below the first positioning member.

[0014] In some embodiments of the present invention, the control module includes a high-voltage signal measuring device, a PCB interface conversion device, a first main board, and a second main board. The high-voltage signal measuring device, the PCB interface conversion device, the first main board, and the second main board are all arranged in the second accommodation cavity and connected to the first support plate. The high-voltage signal measuring device is used to measure high-voltage signals. The PCB interface conversion device is used to convert and connect between different types of electronic interfaces or different types of communication standards. The first main board is used to calculate the parameter information. The second main board is used to manage hardware resources and system configurations.

[0015] In some embodiments of the present invention, the box body is further provided with a rotary keyboard.

[0016] In a second aspect, an embodiment of the present invention provides a test method for a portable printed circuit board tester, which is characterized in that it is applied to the portable printed circuit board tester described in the first aspect of the above embodiments, and includes:

[0017] Connect the PCB board to the portable printed circuit board tester, and the portable printed circuit board tester performs a preprocessing operation;

[0018] The control module controls the test module to send current and voltage signals to each node of the PCB board, so that the test module measures the electrical characteristics and parameter information of the PCB board;

[0019] The data processing module analyzes the PCB board according to the electrical characteristics and the parameter information to obtain the measurement parameters of the PCB board, compares the measurement parameters with the preset standard parameters, and completes the test when the measurement parameters are the same as the standard parameters. When the measurement parameters are different from the standard parameters, the control module identifies the faulty part of the PCB board;

[0020] When the test module completes the test, the display module displays the test report generated by the control module.

[0021] In some embodiments of the present invention, the portable printed circuit board tester performs a preprocessing operation, including:

[0022] Obtain the model information of the PCB board, and determine the connection method between the portable printed circuit board tester and the PCB board according to the model information, so that the portable printed circuit board tester can simultaneously contact multiple test points of the PCB board;

[0023] Before the test module tests the PCB board, a preset test program is loaded into the control module, where the test program at least includes the model of the PCB board, the positions of the test points, and the test signals;

[0024] The portable printed circuit board tester performs a self-calibration operation to fine-tune the test module, the control module, and the data processing module.

[0025] In a third aspect, an embodiment of the present invention provides a computer-readable storage medium storing computer-executable instructions for executing the test method of the portable printed circuit board tester as described in the second aspect above.

[0026] The portable printed circuit board tester and its test method according to the embodiments of the present invention have at least the following beneficial effects:

[0027] Cabinet, the cabinet includes an upper cover plate, a bottom plate, a front plate, a rear plate, a left side plate and a right side plate. The upper cover plate is respectively connected to one ends of the front plate, the rear plate, the left side plate and the right side plate. The other ends of the front plate, the rear plate, the left side plate and the right side plate are all connected to the bottom plate. A test operation panel and a first support plate are further arranged in the cabinet. One side of the test operation panel and the upper cover plate form a first accommodation cavity of the cabinet. The other side of the test operation panel and one side of the first support plate form a second accommodation cavity of the cabinet. The other side of the first support plate and the bottom plate form a third accommodation cavity of the cabinet; a test module, the test module is arranged in the first accommodation cavity, and the test module is used for controlling and testing the PCB board to obtain the information parameters of the PCB board; a control module, the control module is arranged in the second accommodation cavity, and the control module is used for acquiring the high-voltage signal and waveform of the PCB board, converting and connecting between different types of electronic interfaces or communication standards, and adjusting the portable printed circuit board tester according to the information parameters; a data processing module, the data processing module is arranged on the left side plate, the rear plate and the bottom plate, and the data processing module is used for supporting and providing multiple data transmission protocols to the control module and collecting the data of the PCB board; a display module, the display module is arranged on the front plate, and the display module is used for converting the electronic signal of the PCB board into an image, text or data. According to the technical solution of this embodiment, the test efficiency can be improved, the test cost can be reduced, the operation can be simplified and the flexibility can be improved. Description of the Drawings

[0028] Figure 1 is the overall structural schematic diagram of the portable printed circuit board tester provided by an embodiment of the present invention;

[0029] Figure 2 is the structural schematic diagram of the first accommodation cavity, the second accommodation cavity and the third accommodation cavity provided by an embodiment of the present invention;

[0030] Figure 3 is the structural schematic diagram of the control module and the data processing module provided by an embodiment of the present invention;

[0031] Figure 4 is the structural schematic diagram of the test module provided by an embodiment of the present invention;

[0032] Figure 5 is the structural schematic diagram of the display module provided by an embodiment of the present invention;

[0033] Figure 6 is the flowchart of the test method of the portable printed circuit board tester provided by an embodiment of the present invention;

[0034] Figure 7 is the flowchart of the preprocessing operation of the portable printed circuit board tester provided by an embodiment of the present invention. Detailed Embodiments

[0035] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where like or similar reference numerals designate like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0036] In the description of the present invention, it should be understood that with regard to the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as limiting the present invention.

[0037] In the description of the present invention, the meaning of "a number of" is one or more, the meaning of "a plurality of" is two or more. Understanding of "greater than", "less than", "exceeding", etc. does not include the present number, and understanding of "above", "below", "within", etc. includes the present number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0038] In the description of the present invention, unless otherwise clearly defined, terms such as "arrangement", "installation", "connection", etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meaning of the above terms in the present invention in combination with the specific content of the technical solution.

[0039] Refer to Figure 1 and Figure 2, an embodiment of the present invention provides a portable printed circuit board tester, including a box body 100. The box body 100 includes an upper cover plate 110, a bottom plate 120, a front plate 130, a rear plate 140, a left side plate 150 and a right side plate 160. The upper cover plate 110 is respectively connected to one ends of the front plate 130, the rear plate 140, the left side plate 150 and the right side plate 160, and the other ends of the front plate 130, the rear plate 140, the left side plate 150 and the right side plate 160 are all connected to the bottom plate 120. A test operation panel 170 and a first support plate 180 are further arranged in the box body 100. One side of the test operation panel 170 and the upper cover plate 110 form a first accommodation cavity 1010 of the box body 100, the other side of the test operation panel 170 and one side of the first support plate 180 form a second accommodation cavity 1020 of the box body 100, and the other side of the first support plate 180 and the bottom plate 120 form a third accommodation cavity 1030 of the box body 100; a test module 200, the test module 200 is arranged in the first accommodation cavity 1010, and the test module 200 is used to control and test the PCB board to obtain information parameters of the PCB board; a control module 300, the control module 300 is arranged in the second accommodation cavity 1020, and the control module 300 is used to obtain high-voltage signals and waveforms of the PCB board, convert and connect between different types of electronic interfaces or communication standards, and adjust the portable printed circuit board tester according to the information parameters; a data processing module 400, the data processing module 400 is arranged on the left side plate 150, the rear plate 140 and the bottom plate 120, and the data processing module 400 is used to support and provide multiple data transmission protocols to the control module 300 and collect data of the PCB board; a display module 500, the display module 500 is arranged on the front plate 130, and the display module 500 is used to convert the electronic signals of the PCB board into images, texts or data. According to the technical solution of this embodiment, the test efficiency can be improved, the test cost can be reduced, the operation can be simplified, and the flexibility can be improved.

[0040] It should be noted that the volume of the PCB test equipment in the prior art is relatively large, which requires a large amount of space when testing the PCB board, and the operation is also relatively complex. The portable printed circuit board tester in this embodiment is a 1553B bus portable printed circuit board tester. The 1553B bus: is a serial data bus standard in military aviation applications, used in avionics equipment, supporting up to 31 devices to perform data communication on a bus system, with high reliability and fault tolerance, and is widely used in aviation, aerospace, military and other high-requirement application scenarios.

[0041] The portable printed circuit board tester of this embodiment enables relevant engineering technicians to directly conduct tests in any complex environment, production line, or high-standard laboratory, especially suitable for scenarios where problems need to be solved in case of emergencies. The 1553B bus portable printed circuit board tester is mainly designed as a device with simple operation, quick portability, and fast movement; engineering technicians can quickly get started and efficiently complete test tasks; in addition, the 1553B portable printed circuit board tester integrates a variety of test functions, including but not limited to circuit connectivity tests (such as short circuit and open circuit detection), component detection (such as resistors, capacitors, diodes, etc.), automated test script and report generation, signal quality and frequency response tests, etc.

[0042] Furthermore, traditional test equipment often can only provide specific types of tests (such as resistance, current, etc.), while the bus portable printed circuit board tester of this embodiment integrates a variety of test functions and can conduct multiple tests such as circuit connectivity tests, component detection, signal analysis, etc., enhancing the applicability of the tester. As the design of PCB boards becomes increasingly complex, especially the popularization of multi-layer boards and high-frequency circuits, this embodiment increases the test ability for complex circuits by adding a test module 200, a control module 300, and a data processing module 400, so as to adapt to more types of PCB designs and circuit requirements. In addition, the data processing module 400 can quickly locate faults through data analysis and provide a diagnostic report through the control module 300, enabling relevant staff to quickly solve the problems of the PCB board.

[0043] Refer to Figure 3 and Figure 4 As shown in, the test module 200 includes a test upper board 210, an insulating board layer 220, a first test board card 230, and a bottom test pin board 240 arranged in sequence from top to bottom. The test upper board 210 is provided with a plurality of simulated printed circuit boards 211, test quick clamps 212, flip cover pressing plates 213, and DUT positioning seats 214. The test quick clamps 212 are arranged in the middle of the test upper board 210. One end of the DUT positioning seat 214 is connected to the test upper board 210, and the other end of the DUT positioning seat 214 is connected to the flip cover pressing plate 213. A hinge seat 215 is arranged between the flip cover pressing plate 213 and the test upper board 210. The DUT positioning seat 214 is provided with a first placement groove 216, and the flip cover pressing plate 213 is provided with a second placement groove 217. The simulated printed circuit boards 211 are arranged in the first placement groove 216 and the second placement groove 217. The positions of the first placement groove 216 and the second placement groove 217 are adapted. The first test board card 230 is provided with a plurality of test pins 231, and the test pins 231 are connected to the simulated printed circuit boards 211.

[0044] It should be noted that the simulated printed circuit board 211 is used to process and transmit the models of continuous analog products, and ensure the accuracy and quality of the real product models; the test quick clamp 212 is used to provide quick and stable snap-fastening of products, ensure the stability of test signal transmission, and reduce the possibility of errors and poor contacts; the flip cover pressing plate 213 is used to protect the internal components of the portable printed circuit board tester, provide stable fixation, facilitate operation and maintenance, and enhance the safety of the device; the DUT positioning seat 214 is fixed on the test upper plate 210 and is used to ensure that the PCB board under test can be stably and accurately positioned during the test process to ensure the accuracy, reliability and repeatability of the test results.

[0045] It should be noted that several components such as the simulated printed circuit board 211, the test quick clamp 212, the flip cover pressing plate 213 and the DUT positioning seat 214 are provided on the test upper plate 210. Among them, the simulated printed circuit board 211 is placed in the first placement groove 216 of the DUT positioning seat 214 and the second placement groove 217 of the flip cover pressing plate 213, and the positions of these two placement grooves are adapted to ensure that the simulated printed circuit board 211 can be stably placed and tested. A plurality of test pins 231 are provided on the first test board card 230, and these test pins 231 will come into contact with the corresponding test points on the simulated printed circuit board 211 during the test process, thereby establishing an electrical connection. This connection method allows the test system to send test signals to the simulated printed circuit board 211 through the test pins 231 and receive response signals from the simulated printed circuit board 211 to evaluate its electrical performance and functional integrity.

[0046] The design of the test module 200 allows different types of simulated printed circuit boards 211 to be used for testing, thus adapting to the test requirements of different products. In addition, the configurability of the test pins 231 also provides additional flexibility to adapt to different test scenarios and test requirements; compared with manual testing, the automated test module 200 can significantly reduce the test cost. By reducing manual intervention and test time, the labor cost and the depreciation cost of the test equipment can be reduced.

[0047] The data processing module 400 includes a BCM socket 410, a multimeter socket 420, an Ethernet connection socket 430, a power socket 440, a DB9 connector 450, an indicator light 460, a start switch 470, a power filter 480, a USB interface 490 and a fan 4110. The BCM socket 410, the multimeter socket 420 and the USB interface 490 are all provided on the right side plate 160, the Ethernet connection socket 430, the power socket 440 and the DB9 connector 450 are all provided on the rear plate 140, the indicator light 460 and the start switch 470 are provided on the upper cover plate 110, and the power filter 480 and the fan 4110 are both provided in the third accommodation cavity 1030.

[0048] It should be noted that the BCM socket 410 is used to support and provide various data transmission protocols, and has functions such as high efficiency and stability; the multimeter socket 420 is used to provide connection points for a multimeter or other accessories, supports different measurement functions, and different jack configurations, which can facilitate the measurement of various electrical data such as voltage, current, and resistance; the Ethernet connection socket 430 is a GM Ethernet connection port, and the Ethernet connection socket 430 is one of the core components of the network system, which can provide a data transmission rate; the power socket 440 is used to provide a stable and safe power input for the portable printed circuit board tester; the DB9-connector is used for data transmission and control signals between the computer and external instruments; the indicator light 460 is used to provide visual feedback to display the operating status of the portable printed circuit board tester; the USB interface 490, the USB interface 490 is set with two ports, and is used to provide the function of simultaneously connecting multiple devices for the portable printed circuit board tester, enhancing compatibility and flexibility; the BCM socket 410 is used to support and provide various data transmission protocols, and has functions such as high efficiency and stability; the multimeter socket 420 is used to provide connection points for a multimeter or other accessories, supports different measurement functions, and different jack configurations, so that the portable printed circuit board tester can conveniently measure various electrical data such as voltage, current, and resistance; the start switch 470 is the start entry of the portable tester, which is used to turn on the power supply, provide power, and ensure that the device starts normally and performs subsequent work; the power filter 480, the power filter 480 in this embodiment is a military power filter 480, which is used to remove noise and interference in the power supply to ensure that the tester can work stably under complex electromagnetic and harsh environmental conditions; the fan 4110 is used to provide effective heat dissipation to prevent failures and performance problems caused by overheating.

[0049] It should be noted that the components of the data processing module 400 adopt a modular design, which is convenient for users to expand and upgrade according to their needs, improving the flexibility and scalability of the tester. By integrating multiple interfaces such as the BCM socket 410, the multimeter socket 420, and the Ethernet connection socket 430, the tester has multiple functions such as power management, precise measurement, and network communication, so as to meet the different test requirements of different PCB boards. The settings of the indicator light 460 and the start switch 470 enable users to intuitively understand the working status of the tester and conveniently control the switch of the tester, improving the ease of use of the tester; the addition of the power filter 480 and the fan 4110 ensures that the tester can obtain a stable and clean power supply during long-term operation and effectively dissipate heat, thereby improving the stability and reliability of the tester. The settings of the USB interface 490 and the DB9 connector 450 enable the tester to connect and communicate with a variety of other devices, improving the compatibility and application range of the tester.

[0050] Refer to Figure 5, the display module 500 is provided with a first fixing plate 510, a display panel 520, a tempered glass 530 and a display screen 540. One side of the fixing plate is connected to the front plate 130. The periphery of the fixing plate is provided with a first limiting portion 550. The middle of the other side of the fixing plate is provided with a second limiting portion 560. The display panel 520 is connected to the fixing plate through the first limiting portion 550. The display panel 520 is provided with a third placement groove, and the tempered glass 530 is placed in the third placement groove.

[0051] It should be noted that the display module 500 is also provided with a portable display flip cover. The portable display flip cover is provided with a left rotating shaft and a right rotating shaft. The portable display flip cover is connected to the front plate 130 through the left rotating shaft and the right rotating shaft, which is used to protect the display screen 540 of the device, reduce the damage to the screen caused by external factors, and enhance the portability, stability and durability of the device; the display panel 520 is used to fix the display; the tempered glass 530 is used to protect the display screen 540; the display screen 540 is fixed under the portable display flip cover, the display panel 520 and the tempered glass 530, and is used to convert the input electronic signal into a visible image for the user to view and interact.

[0052] It should be noted that through the settings of the first fixing plate 510 and the first limiting portion 550, it is ensured that the display panel 520 can be stably installed on the fixing plate, thereby improving the stability of the entire display module 500. The setting of the tempered glass 530 can effectively protect the display screen 540 from external impacts and scratches, and extend the service life of the display screen 540. The display panel 520 and the tempered glass 530 can be relatively easily disassembled and replaced, making the maintenance of the entire display module 500 more convenient and fast.

[0053] The first limiting portion 550 is provided with a first fixing unit 551. The first fixing unit 551 includes a first extending plane 552, a first fixing member 553, a buckle 554 and a first positioning member 555. The first extending plane 552 is provided with a first opening 556. The first positioning member 555 is installed at the first opening 556. One end of the buckle 554 is connected to the front plate 130, and the other end of the buckle 554 is connected to the first opening 556. The first fixing member 553 is arranged below the first positioning member 555.

[0054] It should be noted that the first limiting portion 550 is a part of the periphery of the fixing plate and is used to limit and fix the position of the display panel 520. The first fixing unit 551 is installed on the first limiting portion 550 to further enhance the connection stability and firmness between the display panel 520 and the fixing plate. The first extension plane 552 is a part of the first fixing unit 551, which provides a flat surface for installing and supporting the buckle 554. The first fixing member 553 is a fixing block for the buckle 554 to fix the buckle 554. The first positioning member 555 is installed at the first opening 556 to ensure that the buckle 554 can be accurately connected to the first opening 556, thereby preventing the display panel 520 from shifting or loosening during the fixing process. The first opening 556 is a hole or groove on the first extension plane 552 for accommodating a part of the buckle 554. The position and size of the first opening 556 are adapted to the shape of the buckle 554. The first positioning member 555 is used to ensure that the buckle 554 can be accurately inserted into the first opening 556 and provide additional support and stability. The setting of the first fixing unit 551 significantly improves the connection stability between the display panel 520 and the fixing plate. Through the combined action of the buckle 554, the first positioning member 555 and the first fixing member 553, the display panel 520 is firmly fixed on the first limiting portion 550 and is not prone to shifting or loosening.

[0055] The control module 300 includes a high-voltage signal measuring device 310, a PCB interface conversion device 320, a first main board 330, and a second main board 340. The high-voltage signal measuring device 310, the PCB interface conversion device 320, the first main board 330, and the second main board 340 are all arranged in the second accommodation cavity 1020 and connected to the first support plate 180. The high-voltage signal measuring device 310 is used to measure high-voltage signals. The PCB interface conversion device 320 is used to convert and connect between different types of electronic interfaces or different types of communication standards. The first main board 330 is used to calculate parameter information. The second main board 340 is used to manage hardware resources and system configurations.

[0056] It should be noted that the high-voltage signal measurement device 310 is a combination of an integrated oscilloscope and a high-voltage differential probe, which can accurately measure high-voltage signals and plays a key role in waveform observation, signal analysis, and circuit debugging; the PCB interface conversion device 320 is used to convert and connect different types of electronic interfaces or different types of communication standards, enabling different circuit boards or devices to communicate and be compatible; the first main board 330 is used to provide computing power, various hardware interfaces, storage support, and power management functions, providing core support for the integration, control, and operation of the device; the second main board 340 is used to ensure the correct cooperation between the main board hardware and the operating system, improve the stability and performance of the system, support external devices and expansion interfaces, manage hardware resources and system configurations, and ensure compatibility and real-time performance.

[0057] It should be noted that the control module 300 is also provided with a power supply module 190, which is used to provide stable power supply and protect against sudden situations such as overvoltage, overcurrent, and short circuit.

[0058] The box body 100 is also provided with a rotary keyboard. It should be noted that the rotary keyboard is provided with a rotary cover, and the rotary keyboard is connected to the front panel 130 through the rotary cover. Under the action of the rotary cover, the keyboard can rotate within a certain range so that the user can adjust the angle and position of the keyboard according to needs; through the rotary cover, the keyboard can be folded or hidden when not in use, thus saving the space of the box body 100 and adjusting different keyboard angles according to different working environments to optimize the user's work efficiency.

[0059] Next, based on the accompanying drawings, the test method of the embodiment of the present invention will be further elaborated.

[0060] Refer to Figure 6 , Figure 6 is a flowchart of a test method for a portable printed circuit board tester provided by an embodiment of the present invention. The test method of the portable printed circuit board tester includes but is not limited to the following steps:

[0061] Step S11, connect the PCB board to the portable printed circuit board tester, and the portable printed circuit board tester performs preprocessing operations;

[0062] It should be noted that the PCB board is connected to the portable printed circuit board tester. The connection method between the portable printed circuit board tester and the PCB board is determined according to the type of the PCB board. The connection methods include but are not limited to probes, jigs, or special connectors. Among them, the tester usually has multiple channels and can simultaneously contact multiple test points of the PCB.

[0063] Step S12: The control module 300 controls the test module 200 to send current and voltage signals to each node of the PCB board, so that the test module 200 measures the electrical characteristics and parameter information of the PCB board;

[0064] It should be noted that the tester measures electrical characteristics such as resistance, capacitance, and inductance by sending signals such as current and voltage to each node of the PCB. For more complex circuit boards, the tester also tests whether each component can work properly, such as the status of IC chips, transistors, diodes, etc.; further, the tester can detect the connectivity of the PCB and determine whether there are short - circuit or open - circuit phenomena. Chip and component identification: Some advanced testers can identify and test the components on the circuit board and determine whether they meet the design requirements.

[0065] Step S13: The data processing module 400 analyzes the data of the PCB board based on the electrical characteristics and parameter information to obtain the measurement parameters of the PCB board, compares the measurement parameters with the preset standard parameters. When the measurement parameters are the same as the standard parameters, the test is completed. When the measurement parameters are different from the standard parameters, the control module 300 marks the faulty part of the PCB board;

[0066] It should be noted that after the tester collects data, the software will analyze it and compare the measured parameters with the standard parameters. If some measured values are outside the normal range, the tester will mark the faulty part to enable technicians to quickly locate the problem. In addition, the data processing module 400 can also save the test data, providing a basis for subsequent data analysis and improvement.

[0067] Step S14: When the test module 200 completes the test, the display module 500 displays the test report generated by the control module 300.

[0068] It should be noted that after the test is completed, the main control module generates a test report, including the test time, test results, abnormal items, etc., and visualizes it through the display module 500. The report can be saved, printed, or uploaded to the database through the network for quality traceability.

[0069] It should be noted that under the combined action of the test module 200, the control module 300, and the data processing module 400, the test ability of the portable printed circuit board tester when testing complex circuits is increased, thus adapting to more types of PCB designs and circuit requirements. In addition, the data processing module 400 can quickly locate faults through data analysis and provide a diagnostic report through the control module 300, enabling relevant staff to quickly solve the problems of the PCB board.

[0070] In addition, in one embodiment, referring to Figure 7 , in Figure 6In step S11 of the illustrated embodiment, it further includes but is not limited to the following steps:

[0071] Step S21, obtain the model information of the PCB board, and determine the connection method between the portable printed circuit board tester and the PCB board according to the model information, so that the portable printed circuit board tester can simultaneously contact multiple test points of the PCB board;

[0072] Step S22, before the test module 200 tests the PCB board, load a preset test program into the control module 300, where the test program at least includes the model of the PCB board, the positions of the test points, and the test signals;

[0073] Step S23, the portable printed circuit board tester performs a self-calibration operation to finely adjust the test module 200, the control module 300, and the data processing module 400.

[0074] It should be noted that before the test, a preset test program or configuration file is loaded into the tester. These programs contain preset parameters such as the model of the circuit board to be tested, the positions of the test points, the test signals, etc., and are loaded through methods such as USB, Bluetooth, or Wi-Fi. Further, the portable tester has an automatic calibration function and can calibrate itself before the test to ensure the accuracy of the measurement data. The calibration process usually automatically detects the internal circuit of the tester and performs fine adjustment.

[0075] The embodiment of the present application also provides a storage medium, which is a computer-readable storage medium. The storage medium stores a computer program, and when the computer program is executed by a processor, it implements the test method of the above-mentioned portable printed circuit board tester.

[0076] As a non-transitory computer-readable storage medium, the memory can be used to store non-transitory software programs and non-transitory computer-executable programs. In addition, the memory can include high-speed random access memory, and can also include non-transitory memory, such as at least one magnetic disk storage device, a flash memory device, or other non-transitory solid-state storage devices. In some embodiments, the memory may optionally include a memory remotely set relative to the processor, and these remote memories can be connected to the processor through a network. Examples of the above network include but are not limited to the Internet, an enterprise intranet, a local area network, a mobile communication network, and their combinations. The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, and may be located in one place, or may be distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0077] Those of ordinary skill in the art will understand that all or some of the steps and systems disclosed above can be implemented as software, firmware, hardware, and appropriate combinations thereof. Some or all of the physical components can be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, which can include a computer storage medium (or non-transitory medium) and a communication medium (or transitory medium). As is well known to those of ordinary skill in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information, such as computer-readable instructions, data structures, program modules, or other data. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cassettes, tapes, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, as is well known to those of ordinary skill in the art, communication media typically includes computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transmission mechanism, and can include any information delivery medium.

[0078] The above is a specific description of the preferred embodiment of the present invention, but the present invention is not limited to the above-mentioned embodiments. Those skilled in the art can also make various equivalent deformations or substitutions without departing from the spirit of the present invention, and these equivalent deformations or substitutions are all included within the scope defined by the claims of the present invention.

Claims

1. A portable printed circuit board tester, characterized in that, Including: A box body, the box body includes an upper cover plate, a bottom plate, a front plate, a rear plate, a left side plate and a right side plate. The upper cover plate is respectively connected to one ends of the front plate, the rear plate, the left side plate and the right side plate. The other ends of the front plate, the rear plate, the left side plate and the right side plate are all connected to the bottom plate. A test operation panel and a first support plate are also arranged in the box body. One side of the test operation panel and the upper cover plate form a first accommodation cavity of the box body. The other side of the test operation panel and one side of the first support plate form a second accommodation cavity of the box body. The other side of the first support plate and the bottom plate form a third accommodation cavity of the box body; A test module, the test module is arranged in the first accommodation cavity, and the test module is used to control and test a PCB board to obtain information parameters of the PCB board; A control module, the control module is arranged in the second accommodation cavity, and the control module is used to obtain high-voltage signals and waveforms of the PCB board, convert and connect between different types of electronic interfaces or communication standards, and adjust the portable printed board tester according to the information parameters; A data processing module, the data processing module is arranged on the left side plate, the rear plate and the bottom plate, and the data processing module is used to support and provide multiple data transmission protocols to the control module and collect data of the PCB board; A display module, the display module is arranged on the front plate, and the display module is used to convert electronic signals of the PCB board into images, texts or data.

2. The portable printed circuit board tester according to claim 1, wherein The test module includes a test upper plate, an insulating board layer, a first test board card and a bottom test pin board placed in sequence from top to bottom. The test upper plate is provided with a plurality of simulated printed boards, test quick clamps, flip cover pressing plates, DTU positioning seats and simulated printed boards. The test quick clamps are arranged in the middle of the test upper plate. One end of the DTU positioning seat is connected to the test upper plate, and the other end of the DTU positioning seat is connected to the flip cover pressing plate. A hinge seat is arranged between the flip cover pressing plate and the test upper plate. The DTU positioning seat is provided with a first placement groove, and the flip cover pressing plate is provided with a second placement groove. The simulated printed boards are arranged in the first placement groove and the second placement groove, and the positions of the first placement groove and the second placement groove are adapted to each other. The first test board card is provided with a plurality of test pins, and the test pins are connected to the simulated printed boards.

3. The portable printed circuit board tester according to claim 1, characterized in that, The data processing module includes a BCM socket, a multimeter socket, an Ethernet connection socket, a power socket, a DB9 connector, an indicator light, a start switch, a power filter, a USB interface and a fan. The BCM socket, the multimeter socket and the USB interface are all arranged on the right side plate. The Ethernet connection socket, the power socket and the DB9 connector are all arranged on the rear plate. The indicator light and the start switch are arranged on the upper cover plate. The power filter and the fan are both arranged in the third accommodation cavity.

4. The portable printed circuit board tester according to claim 1, characterized in that, The display module is provided with a first fixing plate, a display panel, tempered glass and a display screen. One side of the fixing plate is connected to the front plate. A first limiting portion is provided at the periphery of the fixing plate, and a second limiting portion is provided at the middle of the other side of the fixing plate. The display panel is connected to the fixing plate through the first limiting portion. The display panel is provided with a third placement groove, and the tempered glass is placed in the third placement groove.

5. The portable printed circuit board tester according to claim 4, characterized in that, The first limiting portion is provided with a first fixing unit. The first fixing unit includes a first extended plane, a first fixing member, a buckle and a first positioning member. The first extended plane is provided with a first opening. The first positioning member is installed at the first opening. One end of the buckle is connected to the front plate, and the other end of the buckle is connected to the first opening. The first fixing member is provided below the first positioning member.

6. The portable printed circuit board tester according to claim 1, characterized in that, The control module includes a high-voltage signal measuring device, a PCB interface conversion device, a first main board and a second main board. The high-voltage signal measuring device, the PCB interface conversion device, the first main board and the second main board are all arranged in the second accommodating cavity and connected to the first support plate. The high-voltage signal measuring device is used for measuring high-voltage signals. The PCB interface conversion device is used for converting and connecting between different types of electronic interfaces or different types of communication standards. The first main board is used for calculating the parameter information, and the second main board is used for managing hardware resources and system configuration.

7. The portable printed circuit board tester according to claim 1, characterized in that The box body is further provided with a rotary keyboard.

8. A testing method for a portable printed circuit board tester, characterized in that Applied to the portable printed circuit board tester according to any one of claims 1 to 7, including: Connect the PCB board to the portable printed circuit board tester, and the portable printed circuit board tester performs preprocessing operations; The control module controls the test module to send current and voltage signals to each node of the PCB board, so that the test module measures the electrical characteristics and parameter information of the PCB board; The data processing module analyzes the PCB board according to the electrical characteristics and the parameter information to obtain the measurement parameters of the PCB board, compares the measurement parameters with the preset standard parameters. When the measurement parameters are the same as the standard parameters, the test is completed. When the measurement parameters are not the same as the standard parameters, the control module marks the faulty part of the PCB board; When the test module completes the test, the display module displays the test report generated by the control module.

9. The testing method of the portable printed circuit board tester according to claim 8, characterized in that The preprocessing operations performed by the portable printed circuit board tester include: Obtain the model information of the PCB board, and determine the connection method between the portable printed circuit board tester and the PCB board according to the model information, so that the portable printed circuit board tester can simultaneously contact multiple test points of the PCB board; Before the test module tests the PCB board, load a preset test program into the control module, wherein the test program at least includes the model of the PCB board, the positions of the test points and test signals. The portable printed circuit board tester performs a self-calibration operation to fine-tune the test module, the control module, and the data processing module.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions for causing a computer to execute the test method of the portable printed circuit board tester according to any one of claims 8 to 9.

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