CN116990665A

CN116990665A - Test equipment

Info

Publication number: CN116990665A
Application number: CN202310838748.8A
Authority: CN
Inventors: 樊艳飞; 邹开元; 李潍志
Original assignee: Qingdao Zhidong Seiko Electronic Co ltd
Current assignee: Qingdao Zhidong Seiko Electronic Co ltd
Priority date: 2023-07-10
Filing date: 2023-07-10
Publication date: 2023-11-03

Abstract

The embodiment of the application provides test equipment which is used for solving the problem that a full-automatic test scheme in the prior art is only suitable for a single product test mode. The test module comprises at least two test tools for testing the PCBA products of the printed circuit board; the lower computer receives a test instruction sent by the upper computer, and controls the corresponding test tools to be electrified according to the identification information of at least two test tools carried in the test instruction; the test module tests PCBA products to be tested in the powered-on test fixture and sends test results corresponding to the test fixture of each piece of identification information to the upper computer; the upper computer receives each test result and judges the quality of the PCBA products to be tested corresponding to each test tool based on the test result, so that the test equipment can test at least two PCBA products to be tested at the same time, and the test efficiency is improved.

Description

Test equipment

Technical Field

The application relates to the technical field of function test, in particular to test equipment.

Background

The functional test system (Functional Circuit Test, FCT) is used for providing a simulated operation environment for the printed circuit board (Printed Circuit Board Assembly, PCBA), mainly providing different excitation and loads for the PCBA product after the test instruction is provided externally, enabling the PCBA product to work in various preset states, outputting corresponding test results, comparing the obtained test results with theoretical values, and judging whether the PCBA product meets the quality requirement. During FCT testing, manual testing or semi-automatic control function testing can be adopted, and in recent years, along with development of technology, a full-automatic testing scheme is adopted for testing in factories.

At present, the PCBA products for production test are numerous and complex in category, and the PCBA products are quick in production replacement, but because the full-automatic test scheme is only suitable for a single product test mode, problems such as: if a full-automatic test scheme is adopted, extra personnel workload is brought, and the labor cost is not saved; or the design scheme of the product needs to be known in the full-automatic test, but the technical problem is increased for the full-automatic test process due to the complex production-changing design scheme of the product; or because the fully automatic test scheme is only suitable for single product test, the use of the tester is inconvenient, and if the tester is inconvenient for long-term use, the risk of equipment idling is also brought.

Disclosure of Invention

The embodiment of the application provides test equipment which is used for solving the problem that a full-automatic test scheme in the prior art is only suitable for a single product test mode.

In a first aspect, an embodiment of the present application provides a test apparatus, where the test apparatus includes an upper computer, a lower computer, and a test module; the test module comprises at least two test tools for testing the PCBA products of the printed circuit board;

the upper computer is used for sending a test instruction to the lower computer, wherein the test instruction carries identification information of at least two test tools;

The lower computer is used for controlling the test tools corresponding to the identification information in the test module to be electrified according to the identification information of at least two test tools carried in the test instruction after receiving the test instruction;

the test module is used for testing PCBA products to be tested in the powered-on test fixture and sending test results corresponding to the test fixture of each piece of identification information to the upper computer;

the upper computer is also used for receiving the test result corresponding to the test fixture of each identification information sent by the test module and judging the quality of the PCBA product to be tested corresponding to each test fixture based on the test result.

In a second aspect, an embodiment of the present application provides a test method, including:

an upper computer in the test equipment sends a test instruction to a lower computer in the test equipment, wherein the test instruction carries identification information of at least two test tools;

after a lower computer in the test equipment receives the test instruction, controlling the test tool for powering on the identification information according to the identification information of at least two test tools carried in the test instruction;

the test module in the test equipment tests PCBA products to be tested in the powered-on test fixture, and sends test results corresponding to the test fixture of each piece of identification information to an upper computer in the test equipment;

And the upper computer in the test equipment receives the test result corresponding to the test fixture of each identification information, and judges the quality of the PCBA product to be tested corresponding to each test fixture based on the test result.

In a third aspect, an embodiment of the present application further provides a test apparatus, the test apparatus comprising at least a processor and a memory, the processor being configured to implement the steps of the test method according to any one of the preceding claims when executing a computer program stored in the memory.

In a fourth aspect, embodiments of the present application also provide a computer readable storage medium storing a computer program which, when executed by a processor, implements the steps of the test method as described in any of the preceding claims.

In the embodiment of the application, the test equipment comprises an upper computer, a lower computer and a test module; the test module comprises at least two test tools for testing the PCBA products of the printed circuit board; the upper computer is used for sending a test instruction to the lower computer, wherein the test instruction carries identification information of at least two test tools; the lower computer is used for controlling the test tools corresponding to the identification information in the test module to be electrified according to the identification information of at least two test tools carried in the test instruction after receiving the test instruction; the test module is used for testing PCBA products to be tested in the powered-on test fixture and sending test results corresponding to the test fixture of each piece of identification information to the upper computer; the upper computer is also used for receiving the test result corresponding to the test fixture of each identification information sent by the lower computer and judging the quality of the PCBA product to be tested corresponding to each test fixture based on the test result. The test module comprises at least two test tools for testing products to be tested, the upper computer sends test instructions carrying identification information of at least the test tools to the lower computer, the lower computer controls the test tools corresponding to the identification information in the test module to be electrified according to the identification information of the at least two test tools carried in the test instructions, and the test module tests the PCBA products to be tested in the electrified test tools, so that test equipment can test at least two PCBA products to be tested simultaneously, and test efficiency is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a test apparatus according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a test module structure in a test apparatus according to an embodiment of the present application;

FIG. 3 is a schematic diagram of a signal providing module in a test module according to an embodiment of the present application;

FIG. 4 is a block diagram of a test apparatus according to an embodiment of the present application;

FIG. 5 is a schematic diagram of button hardware according to an embodiment of the present application;

FIG. 6 is a flow chart of raising and lowering a ceiling according to an embodiment of the present application;

FIG. 7 is a flow chart of a lifting process of a ceiling according to an embodiment of the present application;

FIG. 8 is a flow chart of a self-checking function provided by an embodiment of the present application;

FIG. 9 is a schematic diagram of a hardware interlock function according to an embodiment of the present application;

FIG. 10 is a schematic diagram of a power supply circuit of a test fixture according to an embodiment of the present application;

FIG. 11 is a diagram of a protection circuit according to an embodiment of the present application;

FIG. 12 is a schematic diagram of a testing process according to an embodiment of the present application;

fig. 13 is a schematic structural diagram of another test apparatus according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be described in further detail below with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The embodiment of the application provides test equipment, which comprises an upper computer, a lower computer and a test module; the test module comprises at least two test tools for testing the PCBA products of the printed circuit board; the upper computer is used for sending a test instruction to the lower computer, wherein the test instruction carries identification information of at least two test tools; the lower computer is used for controlling the test tools corresponding to the identification information in the test module to be electrified according to the identification information of at least two test tools carried in the test instruction after receiving the test instruction; the test module is used for testing PCBA products to be tested in the powered-on test fixture and sending test results corresponding to the test fixture of each piece of identification information to the upper computer; the upper computer is also used for receiving the test result corresponding to the test fixture of each identification information sent by the lower computer and judging the quality of the PCBA product to be tested corresponding to each test fixture based on the test result. The test module comprises at least two test tools for testing products to be tested, the upper computer sends test instructions carrying identification information of at least the test tools to the lower computer, the lower computer controls the test tools corresponding to the identification information in the test module to be electrified according to the identification information of the at least two test tools carried in the test instructions, and the test module tests the PCBA products to be tested in the electrified test tools, so that test equipment can test at least two PCBA products to be tested simultaneously, and test efficiency is improved.

Fig. 1 is a schematic structural diagram of a test device according to an embodiment of the present application, where the test device includes an upper computer 110, a lower computer 120, and a test module 130; the test module 130 includes at least two test tools for testing printed circuit board PCBA products;

the upper computer 110 is configured to send a test instruction to the lower computer 120, where the test instruction carries identification information of at least two test tools;

the lower computer 120 is configured to control, after receiving the test instruction, the test tool corresponding to the identification information in the test module 130 to be powered on according to the identification information of at least two test tools carried in the test instruction;

the testing module 130 is configured to test the PCBA product to be tested in the powered-on testing tool, and send a testing result corresponding to the testing tool of each piece of identification information to the upper computer 110;

the upper computer 110 is further configured to receive a test result corresponding to the test fixture of each identification information sent by the test module 130, and determine quality of the PCBA product to be tested corresponding to each test fixture based on the test result.

The test equipment provided by the embodiment of the application can be combined with the operation of a tester in the test process, and can realize the simultaneous test of at least two PCBA products to be tested. Wherein the PCBA product to be tested includes, but is not limited to, a power strip.

The test equipment provided by the application adopts a structure that one machine is driven to multiple machines and one tool is driven to multiple machines, wherein the structure that one machine is driven to multiple machines indicates that the test equipment can test a plurality of PCBA products to be tested at the same time, and the structure that one tool is driven to one machine indicates that each test tool in the test equipment can only install one PCBA product to be tested at a time.

The test module 130 in the test apparatus includes at least two test fixtures for testing the PCBA product under test, each of which may be equipped with one PCBA product under test. The upper computer 110, the lower computer 120 and the test module 130 may be packaged in a housing of a test apparatus, in which the upper computer 110 and the lower computer 120 may be connected by a serial port line, the serial port line may use a recommended standard 232 (Recommended Standard, rs 232) serial communication interface, the lower computer 120 and the test module 130 may be connected by a signal line, and the test module 130 and the upper computer 110 may be connected by a serial port line.

The upper computer 110 may be a personal computer (Personal Computer, PC) -upper computer, which may be built using an Agilent TestExec SL (ATS) software framework, and the test log (log) is uploaded to the manufacturing execution system (Manufacturing Execution System, MES).

The lower computer 120 may be a single-chip microcomputer, and takes the single-chip microcomputer as a control unit for controlling the operation and control part, and the single-chip microcomputer may be a relay control board for controlling the on and off of the relay of the test equipment; the model of the singlechip can be STM32F407.

In one possible implementation, when the PCBA product to be tested is a circuit board with a size of 32 paths or less, as shown in fig. 2, the test module 130 may include at least two test tools 131, an acquisition card 132, an electronic load 133 and a signal providing module 134 for testing the PCBA product to be tested, where the test tools 131 and the acquisition card 132 may be connected through load lines, the test tools 131 and the electronic load 133 may be connected through load lines, the test tools 131 and the signal providing module 134 may be connected through signal lines, the acquisition card 132 and the upper computer 110 may be connected through serial lines, the serial lines may use a recommended standard 485 (Recommended Standard, rs485) serial communication interface, the electronic load 133 and the upper computer 110 may be connected through serial lines, the serial lines may use an RS232 to RS485 serial port converter, and the RS232 to RS485 serial port converter may convert serial port signals of RS232 level into serial port signals of RS485 level.

The acquisition card 132 can acquire information such as voltage of the PCBA product to be tested, and convert the acquired information from analog signals to digital signals, so that the upper computer 110 can process the information conveniently.

The electronic load 133 may be 4 electronic loads with the model number of CP8108-LED-40w x 8 of 8 channels and 2 electronic loads with the model number of CP8102-LED-100w x 4 of 4 channels, and the electronic loads are packaged to obtain 2 packaged electronic loads, where each packaged electronic load includes 1 CP8102-LED-100w x 4 electronic load and 2 CP8108-LED-40w x 8 electronic load; the electronic load 133 may be used to provide a load for the PCBA product to be tested to enable the PCBA product to work in various preset states, and the electronic load 133 may be further used to collect information such as voltage, current, power, etc. of the backlight light bar in the PCBA product to be tested and send the collected information to the upper computer 110.

As shown in fig. 3, the signal providing module 134 may include a relay control module 1341, a Direct Current-Direct Current (DC-DC) module 1342, and a pulse width modulation (Pulse Width Modulation, PWM) pulse generator 1343. The relay control module 1341 may be an N-way relay control module, where N relates to the number of test tools and the number of switching ways of the PCBA products to be tested, for example, when the number of test tools is 2 and the number of switching ways of one PCBA product to be tested is 13, the relay control module 1341 may be a 26-way relay control module. Wherein the voltage of the DC-DC module 1342 may be 3.3 volts (V)/5V, the DC-DC module 1342 may be connected to the relay control module 1341 through a load line. The pulse generator 1343 may be connected to the relay control module 1341 via a signal line and to the DC-DC module 1342 via a load line. In the embodiment of the present application, the signal providing module 134 may connect the relay control module 1341 with the test fixture 131 by using a signal line, where the signal line may provide a control Signal (STBs), a Short Wave (SW) signal, and a PWM signal.

In yet another possible implementation, when the PCBA product to be tested is a circuit board of 32 paths or more, the test module 130 includes at least two test tools 131 for testing the PCBA product to be tested and a lamp panel test module for testing the PCBA product to be tested by using a lamp panel test in an Inter-Integrated Circuit (I2C)/serial peripheral interface (Serial Peripheral interface, SPI) communication manner.

When the upper computer 110 in the test equipment determines that the test equipment starts to test, a test instruction is sent to the lower computer 120, the test instruction carries identification information of at least two test tools, and the test instruction is used for instructing the lower computer 120 to start to control the test tools corresponding to the identification information in the test module 130 to power on, so that the PCBA products to be tested in the powered test tools are tested. In one possible implementation, a button (button) for starting the test is displayed on the display screen of the upper computer 110, and after the tester operates the button for starting the test on the display screen of the upper computer 110, the upper computer 110 can detect that the button for starting the test is clicked, and determine that the test device starts the test. In yet another possible implementation, a start button is installed on the housing of the test device, and when the tester presses the start button, the host computer 110 detects that the start button is triggered, and determines that the test device starts testing.

After receiving the test instruction, the lower computer 120 determines a test tool corresponding to the identification information according to the identification information of at least two test tools carried in the test instruction; because the lower computer 120 can control the on and off of the relay of the test equipment, the relay of the test tool corresponding to the identification information in the test module 130 is controlled to be closed, so that the test tool corresponding to the identification information is powered on.

After the test module 130 determines that the test fixture corresponding to the identification information of the relay is electrified, testing the PCBA product to be tested in the electrified test fixture to obtain a test result corresponding to the test fixture of each identification information, and sending the test result corresponding to the test fixture of each identification information to the upper computer 110.

The upper computer 110 compares each numerical value with the theoretical value in the test result corresponding to the PCBA product to be tested in each test tool according to the test result corresponding to the PCBA product in each test tool after receiving the test result corresponding to the test tool of each identification information sent by the test module 130, and judges the quality of the PCBA product to be tested corresponding to the test tool according to the comparison result.

In the embodiment of the application, the test module comprises at least two test tools for testing the product to be tested, the upper computer sends the test instruction carrying the identification information of at least the test tools to the lower computer, the lower computer controls the test tools corresponding to the identification information in the test module to be electrified according to the identification information of at least two test tools carried in the test instruction, and the test module tests the PCBA product to be tested in the electrified test tools, so that the test equipment can test at least two PCBA products to be tested at the same time, and the test efficiency is improved.

In order to ensure the conduction of the circuit in the test process, on the basis of the embodiment, in the embodiment of the application, a shell of the test equipment is provided with a start button corresponding to each test tool;

the upper computer 110 is further configured to send a test instruction carrying identification information of a test tool to the lower computer 120 when it is detected that a start button corresponding to any test tool is triggered;

the lower computer 120 is specifically configured to control, after receiving the test instruction, the antenna board corresponding to the test fixture of the identification information to descend, and when the antenna board descends to the working position, the test circuit of the test fixture of the identification information is turned on; when the antenna board corresponding to the test fixture of the identification information is determined to descend to the working position, transmitting an antenna board descending instruction corresponding to the test fixture of the identification information to the upper computer 110;

the upper computer 110 is further configured to send a start instruction to the test module 130 after receiving an in-place instruction of the antenna board corresponding to the test fixture with at least two pieces of identification information.

Most of the prior test equipment air cylinders can only be operated in one direction by manual control, and the air cylinders can influence the fact that the antenna plate can only descend without ascending function, so that if the technology is applied to the application, when a tester presses the rod position accurately after the antenna plate descends, the ascending cannot be conveniently controlled, and only a reset button on a test equipment shell can be pressed, so that the antenna plate corresponding to each test tool ascends to the initial position at the same time, the time is long, and the test of other test tools on PCBA products to be tested is interfered.

In order to enable the ceiling board in the test equipment to be capable of being lifted and lowered, and meanwhile, in view of safety of test personnel, as shown in fig. 4, a button arranged on a shell of the test equipment in the application can comprise a starting button corresponding to each test tool, and further comprise a debugging knob and a combined button, wherein the debugging knob is used for controlling the lifting and lowering of the ceiling board, and the left-handed and right-handed debugging knob respectively represents different movement states (lifting or lowering) of the ceiling board; the tester rotates the debugging knob to a corresponding direction (the corresponding direction comprises a left-handed direction or a right-handed direction), and then when the combined button and the starting button corresponding to the test tool are pressed by both hands at the same time, the lifting or descending of the antenna plate corresponding to the test tool can be controlled, so that the situation that the tester is injured because the antenna plate is lifted or descended immediately when the tester presses the starting button by one hand can be reduced, and the other hand of the tester is still between the antenna plate and the test tool can be reduced.

Taking the number of test tools as 2 as an example, fig. 5 shows a button hardware schematic diagram, and the buttons installed on the casing of the test device include, but are not limited to, a debugging knob, a combination button, a start button a corresponding to the test tool a, a start button B corresponding to the test tool B, and a scram button.

For example, as shown in the flow chart of ascending and descending of the top plate shown in fig. 6, a tester determines to perform ascending operation or descending operation on the top plate of the test fixture by judging the position of the top plate corresponding to the test fixture, wherein when determining to perform descending operation on the top plate of the test fixture, the tester rotates the debugging knob leftwards, then simultaneously presses the combination button and the start button corresponding to the test fixture, so that the lower computer 120 controls the relay corresponding to the descending of the air cylinder to be closed, the air cylinder descends, and performs inching through a While cycle to enable the top plate to descend, and after determining that the top plate descends in place, sends a top plate descending command to the upper computer 110; when the lifting operation of the antenna plate of the test fixture is determined, the tester turns the debugging knob right, then simultaneously presses the combination button and the starting button corresponding to the test fixture, so that the lower computer 120 controls the relay corresponding to the lifting of the air cylinder to be closed, the air cylinder is lifted, the antenna plate is lifted by clicking through a While cycle, and after the antenna plate is determined to be in place, an antenna plate in-place instruction is sent to the upper computer 110.

In addition, when the combination button is triggered independently, the combination button is equivalent to a reset key, so that the antenna board corresponding to each test tool can be lifted to a designated position.

After the tester presses the start button corresponding to any one of the test tools, the upper computer 110 detects that the start button corresponding to any one of the test tools is triggered, determines to start testing the PCBA product to be tested corresponding to the test tool, and sends a test instruction carrying the identification information of the test tool to the lower computer 120.

After receiving the test instruction, the lower computer 120 determines the test tool corresponding to the identification information according to the identification information of the test tool carried in the test instruction, controls the relay corresponding to the descending of the air cylinder to be closed, and controls the air cylinder to descend and to realize inching through a While cycle, so as to control the antenna board corresponding to the test tool to descend.

After determining that the antenna board corresponding to the test fixture for representing the information is lowered to the working position, that is, the antenna board is lowered in place, the lower computer 120 sends an antenna board lowering instruction corresponding to the test fixture for identifying the information to the upper computer 110.

After receiving the in-place instruction of the antenna board corresponding to the test fixture of the at least two pieces of identification information, the upper computer 110 determines to start testing the PCBA product to be tested corresponding to the test fixture of the at least two pieces of identification information, and sends a start instruction to the test module 130 to instruct the test module 130 to start testing the PCBA product to be tested.

In addition, in the embodiment of the application, before the test equipment leaves the factory or before the test process, the test equipment can be debugged through the debugging knob, the combination button and the starting button, so that whether the ceiling board of the test equipment can normally ascend and descend is determined.

Meanwhile, a protective shell can be arranged outside the button hardware on the shell of the test equipment, and a corresponding knob key is configured, when the protective shell is opened by using the key, the knob can be contacted, so that the knob is operated, and the knob key is responsible for a process staff, so that the field staff is prevented from being used at will, and the operation safety is further improved.

In the embodiment of the application, after receiving the in-place instruction of the antenna board corresponding to the test fixture of at least two identification information, the upper computer sends the start instruction to the test module, so that the circuit conduction of the test fixture of the identification information in the test process can be ensured.

In order to improve the test efficiency, in the embodiment of the present application, the upper computer 110 is further configured to send an ascending instruction carrying the identification information of the test tool to the lower computer 120 after receiving the test result corresponding to the test tool of each identification information;

the lower computer 120 is further configured to control, after receiving the ascending instruction, the antenna board corresponding to the test fixture corresponding to the identification information to ascend, and send an antenna board in-place instruction corresponding to the test fixture corresponding to the identification information to the upper computer 110 after determining that the antenna board corresponding to the test fixture corresponding to the identification information ascends to the designated position;

the upper computer 110 is further configured to receive an up-to-place instruction, and determine that the test fixture of the identification information in the test module is restored to the initial state.

After the test module 130 sends the test result corresponding to each identification information test tool to the upper computer 110, the upper computer 110 receives the test result corresponding to each test tool representing the information, and sends an ascending instruction carrying the identification information of the test tool to the lower computer 120.

As shown in the flow chart of raising the ceiling in fig. 7, the left dashed box in fig. 7 shows that when the upper computer sends the instruction of raising the ceiling to the lower computer, the lower computer controls the raising of the ceiling through the While cycle, which results in longer test waiting time. Specifically, after the upper computer sends a ceiling ascending instruction to the lower computer, the lower computer controls the relay of the ceiling descending to be powered off, and sends information of the ceiling ascending to the upper computer; the lower computer controls the lifting of the antenna plate by entering a While cycle, judges whether the antenna plate is in place, if not, continues entering the While cycle to enable the antenna plate to continuously lift until the antenna plate is in place after determining, exits the While cycle, and controls the lifting of the antenna plate to stop; and judging whether the on-board position is overtime, if so, sending a lifting failure instruction of the upper computer, sending an alarm by a three-color lamp and a buzzer, and after the alarm is released, sending the on-board position instruction to the upper computer, if not, sending the on-board position instruction to the upper computer, determining the identification position of the upper board in the upper computer as the on-position identification position, and determining that the upper board is restored to the initial state.

Based on this, considering that the current test time is long, in the embodiment of the present application, as shown in the right dashed box of fig. 7, after receiving the ascending instruction corresponding to the test tool of any identification information sent by the upper computer 110, the lower computer 120 directly controls the relay corresponding to the test tool of the corresponding identification information to be closed, so that the corresponding antenna board is lifted, and determines whether the antenna board corresponding to the test tool of the identification information is in place in the main program of the lower computer 120; if not, continuing to control the lifting of the antenna plate corresponding to the test tool until the antenna plate is determined to be in place; if yes, the antenna board in-place instruction corresponding to the test fixture of the identification information is sent to the upper computer 110, and after the upper computer 110 receives the in-place instruction, the flag bit in the upper computer 110 is changed into an in-place flag bit. In addition, in the embodiment of the application, the in-place instruction on the antenna board is not repeatedly sent to the upper computer 110, so that the problem of program locking is reduced.

After the upper computer 110 receives the in-place instruction corresponding to the test tool with any identification information, a tester can detach the PCBA product to be tested installed on the test tool, and the test tool with the identification information in the test module is determined to be restored to the initial state, so that the next round of test is started conveniently.

It can be understood that, in the embodiment of the present application, after the lower computer 120 receives the ascending instruction corresponding to any one of the test tools, the ascending of the antenna board corresponding to the test tool can be controlled, and in the ascending process of the antenna board corresponding to any one of the test tools, other operations can be performed on other test tools, so that no interference between the test tools is achieved.

The test tools in the test module are not interfered with each other, the test tools are not related, the test can be independently controlled, the relay is fast in closing speed and short in consumed time, the test waiting time is reduced, the test time of each PCBA product is saved by about 3 seconds on average, the unit hour productivity (UPH) is greatly improved, and the test efficiency is improved.

In order to further improve the testing efficiency, in the above embodiments, the lower computer 120 is further configured to not execute the antenna board descending instruction corresponding to any testing tool sent by the upper computer 110 if the antenna board descending instruction corresponding to the testing tool is received during the testing process.

In consideration of the fact that in actual production, on-site testers may be in order to catch up with time, or because a grating sensor (as shown in fig. 4) mounted on a shell of the test equipment is blocked, the position of the antenna board cannot be accurately judged, so that when the antenna board rises in place, namely, a descending instruction of the antenna board is sent out, at the moment, the antenna board is caused to fall in place and then not tested, the antenna board is reset to restart testing, and time waste is caused. Therefore, in the embodiment of the present application, a foolproof measure is further added to the software of the lower computer 120, and in the testing process, if the lower computer 120 receives a downward instruction of a ceiling board corresponding to any testing tool for testing sent by the upper computer 110, the downward instruction of the ceiling board corresponding to the testing tool is not executed until the ceiling board corresponding to the testing tool is in place, that is, until the testing of the PCBA product to be tested of the testing tool is completed, thereby reducing the loss of man hours caused by errors of testing personnel.

In addition, if the lower computer detects that the testing process of the PCBA product to be tested of any testing tool is interrupted, the upper plate of the testing tool can be controlled to ascend.

When the test equipment is in the debugging stage, the antenna board ascends and descends through the debugging knob, the combination button and the starting button.

In the embodiment of the application, when the lower computer receives the antenna board descending instruction corresponding to any testing tool for testing in the testing process, the antenna board descending instruction corresponding to the testing tool is not executed, so that the working hour loss caused by errors of testers can be reduced, and the testing efficiency is further improved.

In order to protect the safety of the testers, on the basis of the embodiment, in the embodiment of the application, an emergency stop button is also arranged on the shell of the test equipment;

the upper computer 110 is further configured to send a ceiling lifting instruction corresponding to at least two test tools to the lower computer 120 when the emergency stop button is detected to be triggered;

the lower computer 120 is further configured to receive a ceiling lifting instruction, control the ceiling corresponding to the at least two test tools to lift, and stop testing the at least two test tools.

In order to protect the safety of the testers and ensure that the equipment can perform orderly testing according to the established rules, and alarm reminding is performed when the testing process is wrong, in the embodiment of the application, the testing equipment further comprises a self-checking function, wherein the self-checking function comprises a checking equipment state and a checking ceiling state, and the checking equipment state comprises one or more of the following steps: determining whether the test device is in an scram condition, whether the grating sensor is alarming, whether the security door is open, etc., checking for weather conditions including, but not limited to, one or more of the following: the upper and lower antenna plates are in place, and the lifting of the antenna plate fails. The state of the inspection device is usually prepared before the test is formally started, and the state of the inspection device is usually performed during the test of the test device.

The test device is described as to whether it is in an emergency stop state: as shown in fig. 5, the buttons further installed on the casing of the test device further include an emergency stop button, and in the test process, when the test device is in an extreme abnormal state such as a leakage current, a tester can take the emergency stop button to perform emergency treatment, and when the upper computer 110 detects that the emergency stop button is triggered, the upper computer 120 sends a lifting instruction of a ceiling corresponding to at least two test tools for testing in the test module. And the upper computer 110 pops out a picture frame in the operation interface of the display screen, so that the tester is forced to stop the page operation until the pop-up frame disappears after the test equipment is determined to be in a normal state.

After receiving the lifting instruction of the antenna board corresponding to at least two test tools, the lower computer 120 controls the relay of the 220V/110V power supply to be disconnected by the singlechip in the lower computer, so that the at least two test tools are timely powered off, and the circuit, the chip and the like are prevented from being burnt due to severe current change caused by other reasons; and control the relay closure that the sky board risees corresponding to make the sky board that at least two test fixture correspond rise, stop the test to the PCBA product that awaits measuring in at least two test fixtures, make at least two test fixtures stop the action immediately simultaneously, prevent that the uncontrolled action of test equipment from causing harm to human, PCBA product, form irrecoverable loss.

In addition, when the emergency stop button is triggered, a red indicator lamp installed on the shell of the test equipment is turned on, a yellow indicator lamp and a green indicator lamp are turned off, a buzzer sounds accordingly, an alarm is given, the alarm reminding function is achieved for the testers and on-site technicians in the aspects of vision and hearing, and in order to protect the safety of the testers, the alarm is the most important fool-proof measure in the test equipment in the aspects of vision and hearing. And when the test equipment is in an emergency stop state, the light emitting diode (Light Emitting Diode, LED) continuously flashes with the period of 0.4 seconds, so as to prompt a tester that the test equipment has an abnormal problem point.

In the embodiment of the application, when the test equipment is detected to be in the emergency stop state, the test of the PCBA products to be tested in at least two test tools is stopped, the damage of the uncontrolled action of the test equipment to human bodies is prevented, and the safety of test personnel is protected.

In order to further protect the safety of the testers, on the basis of the above embodiments, in the embodiment of the present application, the test device further includes a sensor;

a sensor for transmitting alarm information to the upper computer 110 when it is recognized that there is a danger in the test process;

The upper computer 110 is further configured to send, to the lower computer 120, a ceiling lifting instruction corresponding to the test fixture of the at least two identification information when the alarm information is received;

the lower computer 120 is further configured to receive a ceiling lifting instruction, control the ceiling corresponding to the at least two test tools with identification information to lift, and stop testing the PCBA product to be tested in the at least two test tools.

Also included in the test equipment is a sensor that can be used to detect the status of the equipment and send an alarm message to the host computer 110 when a hazard during the test is identified. Wherein the sensor includes, but is not limited to, one or more of the following: grating sensors, emergency gate sensors, etc. Among the hazards presented during testing include, but are not limited to: the grating sensor detects that other objects exist between the antenna board and PCBA products to be tested in the test tool, and the safety door sensor detects that the safety door on the test equipment is opened.

When the upper computer 110 receives the alarm information sent by the sensor, it determines that there is a problem in the test equipment, and in order to avoid damage to the tester and the test equipment, it sends a ceiling raising instruction corresponding to the test fixture with at least two pieces of identification information to the lower computer 120, so that the test fixture stops testing.

After receiving the antenna board lifting instruction, the lower computer 120 controls the relay corresponding to the antenna board lifting to be closed according to the identification information of at least two test tools in the antenna board lifting instruction, so that the antenna board corresponding to the test tools with the at least two identification information is lifted, and the test of the PCBA products to be tested in the at least two test tools is stopped.

In the embodiment of the application, when the sensor recognizes that the danger exists in the testing process, the sensor sends the alarm information to the upper computer, so that the test of the PCBA products to be tested in the at least two testing tools is stopped, and the safety of testers is further protected.

In order to further protect the safety of the testers, on the basis of the above embodiments, in the embodiments of the present application, the sensor further includes a grating sensor;

as shown in fig. 4, the sensor includes a grating sensor mounted on the casing of the testing device, where the grating sensor can detect whether there are other objects between the PCBA product to be tested in any testing tool and the antenna board corresponding to the testing tool when the antenna board is working normally, and when detecting that there are other objects between the PCBA product to be tested and the antenna board corresponding to the testing tool, the sensor sends the grating alarm information to the upper computer 110, so that the upper computer 110 sends an antenna board ascending instruction to the lower computer 120 after receiving the alarm information, thereby stopping the test of the PCBA product to be tested on the testing tool, preventing the tester from hurting the body due to the lack of concentration, and further protecting the safety of the tester.

Meanwhile, when the grating sensor detects that other objects exist between the PCBA product to be tested in the test tool and the ceiling plate corresponding to the test tool, the test equipment controls the red indicator lamp in the test equipment to be on, the yellow indicator lamp and the green indicator lamp to be off, and the buzzer gives out an alarm and reminds the tester of the alarm.

In order to further protect the safety of the testers, on the basis of the above embodiments, in the embodiments of the present application, the sensor further includes a safety door sensor; the shell of the test equipment is also provided with a safety door;

the safety door sensor is used for detecting whether the safety door is opened or not, and when the safety door is detected to be opened, the safety door alarm information is sent to the upper computer 110.

As shown in fig. 4, the housing of the test device is further provided with a safety door, a tester can open the safety door to repair the test device when the test device has a problem, the sensor further comprises a safety door sensor which is safe on the housing of the test device, the safety door sensor can detect whether the safety door is opened or not, and when detecting that the safety door is opened, the safety door alarm information is sent to the upper computer 110, so that the upper computer 110 sends a ceiling rising instruction to the lower computer 120 after receiving the alarm information, and the upper computer 110 sends a ceiling rising instruction to the lower computer 120 after receiving the alarm information, thereby stopping the test of the PCBA product to be tested on the test device, preventing a constructor from damaging the human body when opening the safety door to repair the test device, and further protecting the safety of the tester.

Meanwhile, the testing equipment can also control the red indicator lamp in the testing equipment to be turned on and the yellow and green indicator lamps to be turned off when the safety door is opened, and the buzzer gives out an alarm to remind the testers.

In addition, the sensor further comprises a sensor for checking the state of the sky plate, wherein the sensor for checking the state of the sky plate can detect the state of the sky plate that the sky plate is in place on the sky plate, the state of the sky plate is in place under the sky plate or the state of the sky plate that the sky plate is failed to lift up. The antenna board state is mainly related to the photoelectric switch, the upper and lower in-place states are respectively provided with the corresponding photoelectric switch, the photoelectric switch is turned on after the antenna board is controlled in place, the singlechip in the lower computer is correspondingly turned on to indicate that the lamp is turned on, and the corresponding instruction of the upper in-place instruction or the lower in-place instruction of the antenna board is transmitted to the upper computer 110.

When the antenna is in place, the upper computer receives the instruction, determines that one complete test is completed, and can start the test of the next round; when the antenna is in place, the test tool in the test module is electrified, and the test formally begins; when the lifting of the antenna fails, a tester is required to detect the reason of the equipment and press a reset button to restore the antenna to a normal state, and the next round of normal test is started.

On the basis of the above embodiments, fig. 8 shows a self-checking function flowchart, first checking the device status: scram detection (whether the equipment is in scram state), grating detection (whether the grating sensor alarms), safety door detection (whether the safety door is opened); detecting a weather plate state when the equipment state is detected and the equipment is determined to be in a normal condition, and judging whether the weather plate is in place or not; if not, pressing a reset button by a tester to enable the antenna board to be in place, and testing the power panel of the PCBA product to be tested; if yes, testing a power panel of the PCBA product to be tested; if the power panel testing process is interrupted externally, detecting the equipment state, and when the detected equipment state is in a normal condition, exiting the interruption condition, and continuing to test the power panel of the PCBA product to be tested; and after the power panel test is finished, the equipment state and the sky board state are detected, so that the next round of test is convenient to carry out.

In order to power up the test fixture, on the basis of the above embodiments, in the embodiment of the present application, the test device further includes a power supply circuit module; the power supply circuit module comprises a first power supply for providing power for the test tools, relays corresponding to the number of the test tools and a second power supply for providing power for each relay respectively; the normally open switch of each relay is connected in series between the first power supply and the corresponding test tool;

The lower computer 120 is further configured to control, after receiving the test instruction, the second power supply to power up the relay corresponding to the test tool with the identification information according to the identification information of at least two test tools carried in the test instruction; and the normally open switch of the relay corresponding to the test fixture of the identification information is closed, so that the first power supply is electrified for the test fixture corresponding to the identification information in the test module.

In this embodiment of the present application, the first power supply may include the same power supply or different power supplies, because the required voltages may be the same or different during testing of different types of PCBA products to be tested.

Each relay is connected with one test fixture in the test module, a second power supply for powering up each relay exists in the power supply circuit module, when the second power supply is used for powering up the relay, the relay is closed, a circuit between the first power supply and the test fixture corresponding to the relay is conducted, and then the first power supply can be used for powering up the test fixture corresponding to the relay.

After receiving the test instruction, the lower computer 120 determines the test tools with the identification information according to the identification information of at least two test tools carried in the test instruction, and controls the second power supply to electrify the relay corresponding to the test tool with the identification information, so that the normally open switch of the relay corresponding to the test tool with the identification information is closed, that is, the circuit corresponding to the relay is conducted, thereby forming a loop between the first power supply and the corresponding test tool, and enabling the first power supply to electrify the test tool with the identification information in the test module.

In order to provide power for PCBA products to be tested, based on the embodiments, in the embodiment of the application, the first power supply comprises a first sub power supply and a second sub power supply, and the voltages of the first sub power supply and the second sub power supply are different;

for each relay connected in series between the first power supply and the corresponding test fixture, the relay comprises a first relay corresponding to the first sub power supply and a second relay corresponding to the second sub power supply; the normally open switch of the first relay is connected in series between the first sub power supply and the corresponding test fixture, and the normally open switch of the second relay is connected in series between the second sub power supply and the corresponding test fixture;

the test instruction also comprises power supply information corresponding to the PCBA product to be tested in the test fixture of the identification information; the power supply information comprises a first sub-power supply corresponding to the PCBA product to be tested in the test fixture of the identification information or a second sub-power supply corresponding to the PCBA product to be tested in the test fixture of the identification information;

if the power supply information is that the power supply corresponding to the PCBA product to be tested is the first sub-power supply, the lower computer 120 is specifically configured to control the second power supply to be powered on by the first relay corresponding to the test tool with the identification information according to the power supply information carried in the test instruction after receiving the test instruction; the normally open switch of the first relay is closed, so that the first sub-power supply is electrified for the test fixture corresponding to the identification information in the test module;

If the power supply information is that the power supply corresponding to the PCBA product to be tested is a second sub-power supply, the lower computer 120 is specifically configured to control the second relay corresponding to the test tool with the second power supply as the identification information to power up according to the power supply information of the PCBA product to be tested in the test tool with the identification information carried in the test instruction after receiving the test instruction; and the normally open switch of the second relay is closed, so that the second sub-power supply is electrified for the test fixture corresponding to the identification information in the test module.

Because the required voltages of different PCBA products to be tested are considered to be different, in the application embodiment, the first power supply may include a first sub power supply and a second sub power supply, where the first sub power supply and the second sub power supply are both required voltages of the PCBA products to be tested, and the voltages of the first sub power supply and the second sub power supply are different. For example, the voltage corresponding to the first sub power supply may be 220V, and the voltage corresponding to the second sub power supply may be 110V.

For each relay connected in series between the first power supply and the corresponding test fixture, the relay may include a first relay corresponding to the first sub-power supply and a second relay corresponding to the second sub-power supply.

The normally open switch of the first relay is connected in series between the first sub-power supply and the corresponding testing tool, and after the normally open switch of the first relay is closed, the first sub-power supply can provide a first voltage for the corresponding testing tool, so that the PCBA product tool to be tested in the testing tool is under the first voltage. The normally open switch of the second relay is connected in series between the second sub-power supply and the corresponding testing tool, and when the normally open switch of the second relay is closed, the second sub-power supply can provide a second voltage for the corresponding testing tool, so that the PCBA product to be tested in the testing tool is tested under the second voltage.

The upper computer 110 may further determine a model number, corresponding power information, and the like corresponding to each PCBA product to be tested in the test fixture by acquiring a code scanning result of the two-dimensional code of the PCBA product to be tested in the test fixture, and carry the power information corresponding to the PCBA product to be tested in the test fixture in a test instruction including identification information of the test fixture, and send the test instruction to the lower computer 120. The power supply information comprises a first sub-power supply corresponding to the PCBA product to be tested in the identification information testing tool or a second sub-power supply corresponding to the PCBA product to be tested in the identification information testing tool.

If the power supply information carried in the test instruction is the first sub-power supply corresponding to the PCBA product to be tested, after receiving the test instruction, the lower computer 120 determines the test tool corresponding to the identification information for testing according to the identification information of the test tool carried in the test instruction, determines the first relay corresponding to the test tool of the identification information according to the first sub-power supply carrying the power supply information of the PCBA product to be tested in the test instruction, and controls the second relay corresponding to the test tool of the identification information to power on, so that the normally open switch of the first relay corresponding to the test tool of the identification information is closed, namely the circuit corresponding to the first relay is conducted, thereby forming a loop between the first sub-power supply and the corresponding test tool and enabling the first sub-power supply to power on for the test tool corresponding to the identification information in the test module.

If the power supply information carried in the test instruction is the second sub-power supply corresponding to the PCBA product to be tested, after receiving the test instruction, the lower computer 120 determines the test tool corresponding to the identification information for testing according to the identification information of the test tool carried in the test instruction, determines the second relay corresponding to the test tool of the identification information according to the second sub-power supply carrying the power supply information of the PCBA product to be tested in the test instruction, and controls the second relay corresponding to the test tool of the identification information to be electrified, so that the normally open switch of the second relay corresponding to the test tool of the identification information is closed, namely, the circuit corresponding to the second relay is conducted, thereby forming a loop between the second sub-power supply and the corresponding test tool, and enabling the second sub-power supply to be electrified for the test tool of the corresponding identification information in the test module.

In one possible implementation, the first relay and the second relay in each relay may be connected by means of a hardware interlock, so that when the first sub-power supply is connected to the corresponding test fixture, the second sub-power supply is disconnected from the test fixture. Taking the number of test tools as 2 as an example for explanation, as shown in a hardware interlocking function schematic diagram in fig. 9, the first relay and the second relay are two 4-way (Line, L) relays, the first relay may be a 220V relay, and the second relay may be a 110V relay. The first relay and the second relay respectively comprise 14 pins, wherein the pins 1 to 8 are output pins, the pins 9 to 14 are input pins, the pins 1 to 4 are normally closed switches, the pins 5 to 8 are normally open switches, and the pins 13 and 14 are signal pins.

The normally closed switch pin 4 of the first relay is connected with the signal pin 13 of the second relay; the normally open switch No. 5 pin is connected with the positive electrode of the automatic switch, the normally open switch No. 6 pin is connected with the negative electrode of the automatic switch, and the first relay provides a first sub-power supply for a corresponding test fixture through the automatic switch. The No. 9 pin in the input pins is connected with the positive electrode of the 220V voltage stabilizer output, the No. 10 pin in the input pins is connected with the negative electrode of the 220V voltage stabilizer output, and the 220V voltage stabilizer is connected with the first sub-power supply, so that clutter can be filtered, and the voltage can be stabilized; the 12 # pin in the input pins is connected with 110V signals provided by a singlechip of the lower computer; the pin 13 is connected with the pin 4 of the second relay; the No. 14 pin is connected with the positive electrode of the 24V terminal strip, wherein the terminal strip is an insulating part which is used for bearing a plurality of or a plurality of groups of mutually insulated terminal assemblies and is used for fixing a supporting piece, and the wiring of the on-screen equipment and the off-screen equipment is connected, so that the effect of signal or current and voltage transmission is achieved.

The normally open switch pin 4 of the second relay is connected with the signal pin 13 of the first relay; the normally open switch No. 5 pin is connected with the positive electrode of the automatic switch, the normally open switch No. 6 pin is connected with the negative electrode of the automatic switch, and the second relay provides a second sub-power supply for the corresponding test fixture through the automatic switch. The No. 9 pin in the input pins is connected with the positive electrode of the 110V voltage stabilizer output, the No. 10 pin in the input pins is connected with the negative electrode of the 110V voltage stabilizer output, and the 110V voltage stabilizer is connected with the second sub-power supply, so that clutter can be filtered, and the voltage can be stabilized; the 12 # pin in the input pins is connected with 220V signal provided by the singlechip of the lower computer; the pin 13 is connected with the pin 4 of the first relay; the No. 14 pin is connected with the positive electrode of the 24V terminal strip.

Taking the first relay as an example for closing, assuming that the first relay is a 220V relay, the second relay is a 110V relay, when the power supply information of the PCBA product to be tested is 220V of the first sub power supply, the lower computer pulls down the 220V signal output, the 13 and 14 signal pins of the first relay are connected, and the normally closed switch and the normally open switch of the first relay are opened; the pins 5 and 6 of the normally open switch are closed, so that the automatic switch is turned on, and the first sub-power supply 220V can be output to the corresponding test fixture; the normally closed switch No. 4 pin connected with the signal pin of the second relay is disconnected, so that the 110V signal is disconnected from the normally closed, and the signal of the second relay (110V relay) is not conducted, thereby providing a first sub-power supply for the test tool and realizing hardware interlocking.

The implementation mode of the second relay closure is similar to that of the first relay, and the second relay is not repeated herein, after the second relay is closed, the first relay is not conducted, a circuit between the second sub-power supply and the corresponding test tool is conducted, the second sub-power supply is provided for the corresponding test tool, and therefore the first sub-power supply is provided for the test tool, and hardware interlocking is achieved.

In yet another possible implementation, as shown in the schematic diagram of the test fixture power supply circuit of fig. 10, there is an isolation voltage regulator 2000 Volt-amp (VA) between the first sub-power supply and the first relay and between the second sub-power supply and the second relay, so that noise and stable voltage can be filtered. The first power supply and the relay can be manually rotated by a tester to select the power supply connected to the corresponding test tool, and the first sub power supply/neutral gear/second sub power supply can be selected by using the switch. A fuse can be connected in series between the relay and the test tool, so that when the current exceeds a specified value, the fuse melt is fused by heat generated by the relay and the test tool to break the circuit, and the circuit is protected.

In the embodiment of the application, three power supply circuits corresponding to manual rotary switches of testers are provided, as in scheme one in fig. 10: the relay is connected with a multi-path selection switch, wherein the input end of the multi-path selection switch is a first sub power supply/a second sub power supply/an external input power supply/a neutral gear, and the output end of the multi-path selection switch is connected with the relay; when the relay is closed, the corresponding input of the input end is manually adjusted by a tester, so that different power supplies are provided for the corresponding test fixture.

Scheme II: the relay is connected with the switch module, the switch module comprises a plurality of switches, the input end corresponding to each switch corresponds to a power supply and a neutral gear, the relay is connected with 3 switches, the input end of the first switch is a first sub power supply/neutral gear, the input end of the second switch is a second sub power supply/neutral gear, and the input end of the third switch is an external input power supply/neutral gear; when the relay is closed, a tester manually selects a switch in the switch module and adjusts a gear corresponding to the input end of the switch to provide different power supplies for the corresponding test fixture.

Scheme III: the relay is connected with a multi-path selection switch, wherein the input end of the multi-path selection switch is connected with a first sub-power supply/a second sub-power supply/an external input power supply/a switch module, the switch module is a plurality of switches, the input end of each switch corresponds to a power supply and a neutral gear, and the switch module can be the same as the switch module in the scheme II; when the relay is closed, a tester manually selects the multi-way selection switch and the switch in the switch module, and adjusts the gear corresponding to the input end of the switch, so as to provide different power supplies for the corresponding test fixture.

Compared with the first scheme, the second scheme has the advantages that neutral gear selection is added between the first sub-power supply and the second sub-power supply, namely when a tester adjusts the gear of the input end, the gear of the original closed switch is adjusted to the neutral gear, and then the input of other gears is selected, so that buffering can be provided for circuit current, and unstable pulse current burning components caused by sudden change of current is avoided. Compared with the scheme III, the scheme II can reduce the use amount of the switch, reduce the cost and improve the convenience of use. Scheme two is therefore generally used in embodiments of the present application.

In order to protect each element in the circuit, on the basis of the above embodiments, in the embodiment of the present application, the test apparatus further includes a protection circuit module;

the protection circuit module is used for connecting the main power supply with the main road through the first circuit breaker; the main trunk is connected with the lower computer 120 through a second breaker and a first step-down transformer; the main circuit is connected to the test module 130 by a third circuit breaker.

The protection circuit module supplies 220V alternating current (Volts, alternating Current, VAC) to each module through different types of circuit breakers to prevent overlarge current caused by short circuit or overload and burn out the circuit.

Specifically, as shown in the protection circuit wiring diagram of fig. 11, the first breaker adopted by the main trunk may be a 32A (alternate) breaker, and is connected between the main power supply and the main trunk through the 32A breaker, wherein the 32A breaker is connected with a Live Wire (L) and a Neutral Wire (W) of the main power supply, and N of the main power supply may be connected with a yellow-green terminal block so as to facilitate line inspection and measurement when a fault occurs.

The protection circuit module connects the output end of the first breaker with the input end of the first voltage reducer of 24V, and the output end of the first voltage reducer is connected with the lower computer 120 through the second breaker of 20A, and is used for supplying power to the acquisition card and the relay control board in the lower computer 120.

The protection circuit module connects the main trunk with the test module through a third breaker of 20A, the specific main trunk can be connected with the 20A breaker, the output end of the 20A breaker can be connected with the socket B, and the protection circuit module is connected with the test fixture in the test module 130 through the socket B so as to supply power to the test fixture in the test module 130.

The main power supply can also be directly connected with the socket A for supplying power to the electronic loads in the upper computer 110 and the lower computer 120, and the other end of the 20-hole large socket is connected with the ground wire (Potecting Earthing, PE), so that the electricity utilization safety is ensured. Wherein the receptacle a may be a 20-hole large receptacle.

When the single-way or total circuit is short-circuited or broken or the current is more than or equal to the rated current, the fault circuit is cut off in time, the accident expansion is prevented, the safe operation is ensured, and each element in the circuit is protected.

Based on the same concept, the present application provides a testing method based on the above embodiments, and fig. 12 is a schematic diagram of a testing process provided by the embodiment of the present application, where the process includes:

s1201: the upper computer in the test equipment sends a test instruction to the lower computer in the test equipment, wherein the test instruction carries identification information of at least two test tools.

The test method provided by the embodiment of the application is applied to the test equipment shown in each embodiment.

S1202: and after the lower computer in the test equipment receives the test instruction, controlling the test tool for powering on the identification information according to the identification information of at least two test tools carried in the test instruction.

S1203: and the test module in the test equipment tests the PCBA product to be tested in the powered-on test tool, and sends the test result corresponding to the test tool of each piece of identification information to an upper computer in the test equipment.

S1204: and the upper computer in the test equipment receives the test result corresponding to the test fixture of each identification information, and judges the quality of the PCBA product to be tested corresponding to each test fixture based on the test result.

Specifically, the process of testing the PCBA product to be tested by the testing device may refer to the above embodiment, and will not be described herein.

Because the test equipment can test PCBA products to be tested in at least two test tools, the test efficiency is improved.

On the basis of the above embodiments, in an embodiment of the present application, the method further includes:

when the upper computer in the test equipment detects that the starting button corresponding to any test tool is triggered, a test instruction carrying the identification information of the test tool is sent to the lower computer in the test equipment;

after a lower computer in the test equipment receives the test instruction, controlling a antenna board corresponding to the test fixture of the identification information to descend, and conducting a test circuit of the test fixture of the identification information when the antenna board descends to a working position; when the antenna board corresponding to the test fixture of the identification information is determined to descend to the working position, an in-place antenna board descending instruction corresponding to the test fixture of the identification information is sent to an upper computer in the test equipment;

and after receiving the in-place instruction of the antenna board corresponding to the test fixture of the at least two pieces of identification information, the upper computer in the test equipment sends a start instruction to the test module in the test equipment.

In order to improve the testing efficiency, based on the above embodiments, in the embodiments of the present application, the method further includes:

after receiving a test result corresponding to each test tool of the identification information, an upper computer in the test equipment sends an ascending instruction carrying the identification information of the test tool to a lower computer in the test equipment;

after receiving the ascending instruction, a lower computer in the test equipment controls the ascending of a ceiling corresponding to the test tool corresponding to the identification information; after the antenna board corresponding to the test fixture for the identification information is determined to be lifted to the designated position, an in-place antenna board instruction corresponding to the test fixture for the identification information is sent to an upper computer in the test equipment;

and the upper computer in the test equipment receives the in-place instruction and determines that the test fixture of the identification information in the test module in the test equipment is restored to the initial state.

In order to further improve the testing efficiency, on the basis of the above embodiments, in the embodiment of the present application, the method further includes:

in the testing process, if the lower computer in the testing equipment receives a weather board descending instruction corresponding to any testing tool for testing, the weather board descending instruction corresponding to the testing tool is not executed.

In order to protect the safety of the testers, on the basis of the above embodiments, in the embodiments of the present application, the method further includes:

when an upper computer in the test equipment detects that an emergency stop button arranged on a shell of the test equipment is triggered, sending a ceiling ascending instruction corresponding to at least two test tools to a lower computer in the test equipment;

and the lower computer in the test equipment receives the antenna board lifting instruction, controls the antenna boards corresponding to the at least two test tools to lift, and stops the test of the at least two test tools.

In order to further protect the safety of the testers, on the basis of the above embodiments, in the embodiments of the present application, the method further includes:

when a sensor in the test equipment recognizes that a danger exists in the test process, alarm information is sent to an upper computer in the test equipment;

the upper computer in the test equipment receives the alarm information and sends a ceiling ascending instruction corresponding to the test tool of at least two identification information to the lower computer in the test equipment;

and the lower computer in the test equipment receives the antenna board lifting instruction, controls the antenna board corresponding to the test fixture of the at least two identification information to lift, and stops testing the PCBA products to be tested in the at least two test fixtures.

In order to further protect the safety of the testers, in the embodiments of the present application, when the sensor in the test device identifies that there is a danger in the test process, alarm information is sent to the upper computer in the test device, including: the sensor further comprises a grating sensor;

when a grating sensor in the test equipment detects that other objects exist between a PCBA product to be tested and a ceiling corresponding to the test tool, grating alarm information is sent to an upper computer in the test equipment; the grating sensor is used for detecting whether other objects exist between the PCBA product to be tested on any test tool and the antenna board corresponding to the test tool.

In order to further protect the safety of the testers, in the embodiments of the present application, when the sensor in the test device identifies that there is a danger in the test process, alarm information is sent to the upper computer in the test device, including: the sensor also comprises a safety door sensor;

when a safety door sensor in the test equipment detects that a safety door installed on a shell of the test equipment is opened, the safety door alarm information is sent to an upper computer in the test equipment; the safety door sensor is used for detecting whether the safety door is opened.

In order to power up the test fixture, in the embodiments of the present application, the test device includes a first power supply for providing power for the test fixture, relays corresponding to the number of the test fixtures, and a second power supply for providing power for each relay; the normally open switch of each relay is connected in series between the first power supply and the corresponding test tool;

the method further comprises the steps of:

after a lower computer in the test equipment receives the test instruction, controlling a second power supply to electrify a relay corresponding to the test tool with the identification information according to the identification information of at least two test tools carried in the test instruction; and the normally open switch of the relay corresponding to the test fixture of the identification information is closed, so that the first power supply is electrified for the test fixture corresponding to the identification information in the test module.

In order to provide power for PCBA products to be tested, based on the embodiments, in the embodiment of the application, according to the identification information of at least two test tools carried in the test instruction, a second power supply is controlled to be electrified for a relay corresponding to the test tool with the identification information; the normally open switch of the relay that identification information's test fixture corresponds is closed, makes first power supply power for the test fixture of corresponding identification information in the test module, includes:

The first power supply comprises a first sub power supply and a second sub power supply, and the voltages of the first sub power supply and the second sub power supply are different;

if the power supply information is that the power supply corresponding to the PCBA product to be tested is a first sub-power supply, after the lower computer in the test equipment receives the test instruction, controlling the second power supply to be the first relay corresponding to the test tool of the identification information to be electrified according to the power supply information carried in the test instruction; the normally open switch of the first relay is closed, so that the first sub-power supply is electrified for the test fixture corresponding to the identification information in the test module;

If the power supply information is that the power supply corresponding to the PCBA product to be tested is a second sub-power supply, after the lower computer in the test equipment receives the test instruction, controlling the second power supply to be powered on by a second relay corresponding to the test tool of the identification information according to the power supply information of the PCBA product to be tested in the test tool of the identification information carried in the test instruction; and the normally open switch of the second relay is closed, so that the second sub-power supply is electrified for the test fixture corresponding to the identification information in the test module.

Based on the same technical concept, fig. 13 is another schematic structural diagram of a test apparatus according to an embodiment of the present application, as shown in fig. 13, including: one or more (including two) processors 1301 and a communication interface 1302.

The processor 1301 has stored therein a computer program which, when executed by the processor 1301, causes the processor 1301 to perform the steps of the test method in any of the embodiments described above.

Optionally, the terminal device further includes a memory 1303, where the memory 1303 may include a read-only memory and a random access memory, and provides operation instructions and data to the processor. A portion of the memory may also include non-volatile random access memory (non-volatile random access memory, NVRAM).

In some embodiments, as shown in FIG. 13, memory 1303 stores elements, execution modules, or data structures, or a subset thereof, or an extended set thereof.

As shown in fig. 13, in some embodiments of the present application, the corresponding operations are performed by calling the operation instructions stored in the memory 1303 (which may be stored in the operating system).

As shown in fig. 13, a processor 1301 controls processing operations of the headend device, and the processor may also be referred to as a central processing unit (central processing unit, CPU).

As shown in fig. 13, the memory 1303 may include a read only memory and a random access memory, and provides instructions and data to the processor. A portion of the memory 1303 may also include NVRAM. Such as an application communication interface and memory, are coupled together by a bus system 1304, which bus system 1304 may include a power bus, a control bus, a status signal bus, etc., in addition to a data bus. But for clarity of illustration, the various buses are labeled as bus system 1304 in fig. 13.

On the basis of the above embodiments, the embodiments of the present application further provide a computer readable storage medium, where a computer program executable by a terminal device is stored, and when the program runs on the terminal device, the program causes the test device to execute the method disclosed in some embodiments of the present application.

Since the principle of solving the problem by the computer readable storage medium is similar to that of the test method, the implementation of the computer readable storage medium can refer to the embodiment of the method, and the repetition is omitted.

It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks. It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. The test equipment is characterized by comprising an upper computer, a lower computer and a test module; the test module comprises at least two test tools for testing the PCBA products of the printed circuit board;

2. The test device of claim 1, wherein a shell of the test device is provided with a start button corresponding to each test tool;

The upper computer is also used for sending a test instruction carrying the identification information of the test tool to the lower computer when detecting that the start button corresponding to any test tool is triggered;

the lower computer is specifically used for controlling the antenna board corresponding to the test fixture of the identification information to descend after receiving the test instruction, and when the antenna board descends to a working position, the test circuit of the test fixture of the identification information is conducted; when the weather board corresponding to the test fixture of the identification information is determined to descend to the working position, sending a weather board descending instruction corresponding to the test fixture of the identification information to the upper computer;

the upper computer is further used for sending a start instruction to the test module after receiving the in-place instruction of the antenna board corresponding to the test fixture of the at least two identification information.

3. The test device according to claim 2, wherein the upper computer is further configured to send an ascending instruction carrying the identification information of the test tool to the lower computer after receiving the test result corresponding to the test tool of each identification information;

the lower computer is further used for controlling the lifting of the antenna plate corresponding to the test fixture corresponding to the identification information after receiving the lifting instruction, and sending the antenna plate in-place instruction corresponding to the test fixture corresponding to the identification information to the upper computer after determining that the antenna plate corresponding to the test fixture corresponding to the identification information is lifted to the designated position;

The upper computer is further used for receiving the in-place instruction and determining that the test fixture of the identification information in the test module is restored to an initial state.

4. The test device according to claim 2, wherein the lower computer is further configured to not execute the antenna board descending instruction corresponding to any test tool for testing, which is sent by the upper computer, if the antenna board descending instruction corresponding to the test tool is received in the test process.

5. The test device of claim 2, wherein the housing of the test device is further provided with a scram button;

the upper computer is further used for sending a ceiling ascending instruction corresponding to the at least two test tools to the lower computer when the emergency stop button is detected to be triggered;

the lower computer is also used for receiving the antenna board lifting instruction, controlling the antenna board corresponding to the at least two test tools to lift, and stopping the test of the at least two test tools.

6. The test apparatus of claim 2, wherein the test apparatus further comprises a sensor;

the sensor is used for sending alarm information to the upper computer when the danger exists in the testing process;

The upper computer is further used for sending a ceiling lifting instruction corresponding to the test fixture of the at least two identification information to the lower computer when the alarm information is received;

the lower computer is also used for receiving the antenna board lifting instruction, controlling the antenna board corresponding to the test fixture of the at least two identification information to lift, and stopping testing the PCBA products to be tested in the at least two test fixtures.

7. The test apparatus of claim 6, wherein the sensor further comprises a grating sensor;

the grating sensor is used for detecting whether other objects exist between the PCBA product to be tested on any test tool and the antenna board corresponding to the test tool, and when detecting that other objects exist between the PCBA product to be tested and the antenna board corresponding to the test tool, the grating sensor sends grating alarm information to the upper computer.

8. The test apparatus of claim 6, wherein the sensor further comprises a security gate sensor; a safety door is also arranged on the shell of the test equipment;

and the safety door sensor is used for detecting whether the safety door is opened or not, and sending safety door alarm information to the upper computer when the safety door is detected to be opened.

9. The test device of claim 1, further comprising a power circuit module; the power supply circuit module comprises a first power supply for providing power for the test tools, relays corresponding to the number of the test tools and a second power supply for providing power for each relay respectively; the normally open switch of each relay is connected in series between the first power supply and the corresponding test tool;

the lower computer is further used for controlling the relay corresponding to the test tool with the second power supply as the identification information to be electrified according to the identification information of at least two test tools carried in the test instruction after receiving the test instruction; and closing a normally open switch of a relay corresponding to the test fixture of the identification information, so that the first power supply is electrified for the test fixture corresponding to the identification information in the test module.

10. The test apparatus of claim 9, wherein the first power supply comprises a first sub power supply and a second sub power supply, the first sub power supply and the second sub power supply being different in voltage;

for each relay connected in series between the first power supply and the corresponding test fixture, the relay comprises a first relay corresponding to the first sub-power supply and a second relay corresponding to the second sub-power supply; the normally open switch of the first relay is connected in series between the first sub-power supply and the corresponding test fixture, and the normally open switch of the second relay is connected in series between the second sub-power supply and the corresponding test fixture;

The test instruction also comprises power supply information corresponding to the PCBA product to be tested in the test fixture of the identification information; the power supply information comprises a first sub-power supply corresponding to a PCBA product to be tested in the test fixture of the identification information or a second sub-power supply corresponding to the PCBA product to be tested in the test fixture of the identification information;

if the power supply information is that the power supply corresponding to the PCBA product to be tested is a first sub-power supply, the lower computer is specifically configured to control the second power supply to power up a first relay corresponding to a test tool of the identification information according to the power supply information carried in the test instruction after receiving the test instruction; the normally open switch of the first relay is closed, so that the first sub-power supply is electrified for the test fixture corresponding to the identification information in the test module;

if the power supply information is that the power supply corresponding to the PCBA product to be tested is a second sub-power supply, the lower computer is specifically configured to control the second power supply to power up a second relay corresponding to the test fixture of the identification information according to the power supply information of the PCBA product to be tested in the test fixture of the identification information carried in the test instruction after receiving the test instruction; and the normally open switch of the second relay is closed, so that the second sub-power supply is electrified for the test fixture corresponding to the identification information in the test module.