CN115166484A - A drive board detection system, method, electronic device and storage medium - Google Patents

Abstract

The invention discloses a driving board detection system, method, electronic equipment and storage medium. In the driving board detection system, a test box identifies an electronic label on the driving board to obtain driving board information and sends it to a host computer. The information generates voltage control instructions to control the output test voltage of the DC power supply, and the host computer also generates test instructions according to the driver board information to control the test box to generate test signals and control the on-off of the test points in the tooling board and the needle bed, so as to connect the test signals and The test voltage is output to the driver board, and the test box receives the feedback signal and generates the test result code according to the feedback signal. The host computer is used to control the DC power supply to output multiple test voltages of different levels, which can avoid voltage setting errors; generate different test signals and test solutions for different drive boards, which can meet the test requirements of different drive boards. The drive board replaces the test fixture board, which improves the test efficiency.

Description

A drive board detection system, method, electronic device and storage medium

technical field

The present invention relates to the technical field of device detection, and in particular, to a drive board detection system, method, electronic device and storage medium.

Background technique

Elevators include passenger elevators, freight elevators, home elevators, escalators, etc. The difference in elevator load and elevator speed results in a variety of inverters that drive the elevator host. The power range is from 1.1kW to 60kW, and the power supply also includes three-phase and single-phase two-phase kind.

At present, the test tool for detecting the drive board of the inverter is also not universal. Each power model of the drive board of the inverter needs to correspond to a test tool, resulting in a lot of test tools. Moreover, each drive board needs to test multiple voltage levels, then The tester needs to repeat the test operation many times, which not only wastes manpower, but also easily damages the drive board due to misoperation.

SUMMARY OF THE INVENTION

The invention provides a drive board detection system to solve the problems of uncommon test tooling for testing the drive board of the frequency converter, waste of manpower and easy damage to the drive board caused by manual repeated testing of the drive board.

In a first aspect, the present invention provides a drive board detection system, including a host computer, a DC power supply and a test box connected to the host computer, the test box including a tooling board and a needle bed, the tooling board, all the The DC power supply is connected to the drive board to be tested through the needle bed,

The test box is used to identify the electronic label on the drive board to obtain the drive board information and send it to the host computer;

The host computer is used to generate a voltage control command and a test command according to the driver board information;

The DC power supply is used for outputting a test voltage according to the voltage control command;

The test box is further configured to generate a test signal according to the test instruction and control the on-off of the test point in the tooling board and the needle bed, so as to output the test signal and the test voltage to the drive board, and receive the feedback signal of the driving board, and generate a test result code according to the feedback signal and send it to the upper computer.

In a second aspect, the present invention provides a driving board detection method, comprising:

The test box identifies the electronic label on the drive board to obtain the drive board information and sends it to the host computer;

The host computer generates a voltage control command and a test command according to the driver board information;

The DC power supply outputs the test voltage according to the voltage control command;

The test box generates a test signal according to the test instruction and controls the on-off of the test point in the tooling board and the needle bed, so as to output the test signal and the test voltage to the driving board, and receive the test signal and the test voltage. The feedback signal of the driving board is generated, and a test result code is generated according to the feedback signal and sent to the upper computer.

In a third aspect, the present invention provides an electronic device, the electronic device comprising:

at least one processor; and

a memory communicatively coupled to the at least one processor; wherein,

The memory stores a computer program executable by the at least one processor, the computer program being executed by the at least one processor to enable the at least one processor to execute the driver according to the first aspect of the present invention plate detection method.

In a fourth aspect, the present invention provides a computer-readable storage medium, where computer instructions are stored in the computer-readable storage medium, and the computer instructions are used to enable a processor to implement the drive board described in the first aspect of the present invention when executed. Detection method.

The drive board detection system provided by the embodiment of the present invention includes a host computer, a DC power supply connected to the host computer, and a test box, the test box includes a tooling board and a needle bed, and the tooling board and the DC power supply are connected to the drive board to be tested through the needle bed. , the test box is used to identify the electronic label on the driver board to obtain the driver board information and send it to the host computer. The host computer is used to generate voltage control instructions according to the driver board information to control the DC power supply to output the test voltage. Generate test instructions to control the test box to generate test signals and control the on-off of test points in the tooling board and needle bed, and then output the test signal and test voltage to the driver board. The test box receives the feedback signal generated by the driver board and responds according to the feedback. Signals generate test result codes. On the one hand, the DC power supply can be controlled by the host computer to output multiple test voltages of different levels, without manual repeated operations, to avoid damage to the driver board due to incorrect voltage settings; on the other hand, different test signals can be generated for different driver boards. And the on-off mode of the test points in the tooling board and the needle bed to meet the test requirements of different drive boards, and it is suitable for the testing of many types of drive boards. The efficiency greatly reduces the difficulty of driving board testing and maintenance, and also saves the storage space of traditional tooling boards.

It should be understood that the content described in this section is not intended to identify key or critical features of the embodiments of the invention, nor is it intended to limit the scope of the invention. Other features of the present invention will become readily understood from the following description.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

1 is a structural block diagram of a drive board detection system provided in Embodiment 1 of the present invention;

2 is a schematic structural diagram of a drive board detection system provided in Embodiment 1 of the present invention;

FIG. 3 is a process flow diagram of a signal input to a driver board provided by Embodiment 1 of the present invention;

Fig. 4 is a kind of signal processing flow chart outputted by the driver board according to the first embodiment of the present invention;

5 is a structural block diagram of another drive board detection system provided by Embodiment 1 of the present invention;

6 is a flowchart of a driving board detection method provided in Embodiment 2 of the present invention;

FIG. 7 is a schematic structural diagram of an electronic device according to Embodiment 3 of the present invention.

Detailed ways

In order to make those skilled in the art better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only Embodiments are part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Example 1

FIG. 1 is a structural block diagram of a drive board detection system provided in Embodiment 1 of the present invention. This embodiment can be applied to the situation of detecting the fault condition of the drive board of the inverter. As shown in FIG. 1 , the drive board detection system It includes a host computer 1, a DC power supply 2 and a test box 3 connected to the host computer 1. The test box 3 includes a tooling board 31 and a needle bed 32. The tooling board 31 and the DC power supply 2 pass through the needle bed 32 and the drive board 4 to be tested. connect.

The test box is used to identify the electronic label on the driver board to obtain the driver board information and send it to the upper computer.

The drive board of the inverter is a signal amplifying board that integrates the drive circuit. If the drive circuit fails, for example, when the optocoupler, resistor-capacitor and other devices are burned or the power supply voltage is abnormal, the three-phase voltage will be unbalanced or overcurrent and cannot be normal. work, so the driver board needs to be tested regularly. In this embodiment, an electronic label is provided on the driver board, and the electronic label can be a one-dimensional code or a two-dimensional code, and a camera or other image acquisition device is provided on the test box, which can collect and identify the electronic label on the driver board to obtain Driver board information. In an example of this embodiment, the test box further includes a sensor, and the sensor is used to collect the image of the electronic label on the driving board and send it to the tooling board, and the tooling board is used to identify the electronic label image to obtain the information of the driving board and send it to the upper computer . The driver board information may include information such as the model, power level, material code, and size of the driver board.

The upper computer is used to generate voltage control commands and test commands according to the driver board information.

Because when testing the drive board of the inverter, it is usually necessary to test multiple test voltages of different levels. For example, the test voltage is divided into three levels: 300V, 540V, and 800V to detect the failure of the inverter under different levels of test voltages. Then, the DC power supply can be controlled to deliver different levels of test voltages to the drive board to be tested through the voltage control command. On the other hand, different driver boards correspond to different test schemes. The test scheme is a scheme for controlling the test box to input test signals to the driver board. The test scheme may include test items, test signals, and the like.

For example, for different drive boards, their power levels, sizes, etc. are different, so the test signals (excitation signal sources) for testing their fault conditions are also different. Take the power level as an example: two drive boards H, G , the power is 3.7kW and 15kW respectively, the rated current of the driver board H is 9A, the maximum current of the overcurrent protection point is 9*1.414*3=38.178A, the rated current of the driver board G is 37A, and the maximum current of the overcurrent protection point is 37A. is 37*1.414*3=156.954A, then in the test scheme, the test signal of the overcurrent point of the two drive boards is different, the voltage of the test signal of the drive board H should be 38.178A after equivalent, and the drive board The voltage of the test signal of G should be 156.954A after equivalent.

The driver board information, as well as the test voltage and test scheme corresponding to the driver board information are pre-stored in the host computer. When receiving the driver board information sent by the test box, the voltage control command is generated according to the corresponding test voltage, and the corresponding test voltage is generated. The scenario generates test instructions.

The DC power supply is used to output the test voltage according to the voltage control command.

The AC power provided by the power grid is generally 220V (or 380V). Because when testing the drive board of the inverter, it is usually necessary to test multiple test voltages of different levels. Therefore, in this embodiment, an adjustable DC power supply is used to supply different levels of testing. Voltage, the DC power supply is an adjustable DC stabilized power supply. Specifically, the DC power supply obtains the test voltage from the voltage control command, and the AC mains is first transformed, rectified, filtered and stabilized to obtain the required DC voltage. Amplitude, that is, to get the test voltage.

The test box is also used to generate test signals and control the on-off of test points in the tooling board and needle bed according to the test instructions, so as to output the test signals and test voltages to the driving board, and receive the feedback signals of the driving board, and according to the feedback signals Generate test result codes.

The test box includes a signal generation module, such as a signal generator, etc., and the test instruction may include a test signal, and the test box controls the signal generation module in the test box to generate the test signal according to the test instruction.

In this embodiment, a circuit for conducting signals between the chip and the circuit board is arranged inside the tooling board. In addition to the bearing function, the tooling board has additional functions such as protection circuits, dedicated lines, and heat dissipation. A plurality of test points (test holes) are arranged on the tooling board, and the combination of on-off of different test points can adapt to the test requirements of drive boards of different sizes. When making a tooling board, the test points, wiring, and size of the tooling board should be designed in combination with the known driver boards or the functional modules, dimensions, board types, interfaces and other elements of the driver board that actually needs to be tested. Make the tooling board match the driver board to be tested. It should be noted that in the actual test process, different driver boards may also share some or all of the same lines and test points.

There are also multiple test points (test pin points) on the needle bed. When the driver board to be tested is crimped on the needle bed, some test points on the needle bed are physically connected to the driver board, but they are not connected. When the test command controls the target test point on the needle bed corresponding to each functional module on the driver board to be turned on, the target test point is in the on state, while other test points on the needle bed are in the off state. The needle bed is equivalent to both the power line and the signal line. The on-off of different test points on the needle bed can also meet the test requirements of different sizes of driver boards.

After the test points on the tooling board and the needle bed corresponding to the driving board are turned on, the test voltage output by the DC power supply can be sent to the driving board through the needle bed, and the test signal generated in the test box can be output to the driving board through the tooling board and the needle bed. plate.

Correspondingly, detection circuits such as switching power supply and overvoltage, overcurrent, and overheating are provided in the drive board. For example, the test voltage is divided into three levels: 300V, 540V, and 800V, and 540V is the normal working voltage. When the drive board is normal, when the test voltage of 300V is delivered to the drive board for a period of time, the busbar of the drive board is in an undervoltage state. , the driver board will feed back an undervoltage signal to the test box. Similarly, when the 800V test voltage is delivered to the driver board for a period of time, the driver board bus is in an overvoltage state, and the driver board will feed back an overvoltage signal to the test box. For different test items, the driver board can return different feedback signals, among which, the feedback signal-test result code mapping table is pre-stored in the test box, and when the test box receives the feedback signal, it can generate the test result code according to the feedback signal. For example, when the test item A passes the test, the corresponding test result code is "111A", and when the test fails, the corresponding test result code is "000A".

The working principle of the drive board detection system according to the embodiment of the present invention is as follows:

Figure 2 is a schematic diagram of the structure of the drive board detection system. The drive board 4 to be tested is crimped on the needle bed 32 in the test box 3. The test box 3 scans the drive board 4 to obtain the drive board information and sends it to the upper position. machine 1. The host computer is usually a computer. The host computer generates the corresponding voltage control command according to the driver board information and sends it to the DC power supply to control the DC power supply to provide the test voltage for the driver board. The host computer also generates the corresponding test command according to the driver board information to control the test. The box generates the test signal, controls the on-off of the test points in the tooling board and the needle bed, and then transmits the test signal and test voltage to the driver board, and then receives the feedback signal from the driver board through the test box and analyzes the test result code. The upper computer displays the test result code.

In the drive board detection system provided by the embodiment of the present invention, on the one hand, the host computer can control the DC power supply to output a plurality of test voltages of different levels, without manual repeated operation, and avoid damage to the drive board due to wrong voltage setting; on the other hand, Different test signals and on-off modes of test points in the tooling board and bed of needles can be generated for different drive boards to meet the test requirements of different drive boards. The drive board can be replaced with the test tool board, which improves the test efficiency, greatly reduces the difficulty of testing and maintenance of the drive board, and saves the storage space of the traditional tool board.

In an optional embodiment of the present invention, the upper computer pre-stores multiple test voltages of different levels and the priorities of the test voltages. For example, the test voltages are divided into three levels: 300V, 540V, and 800V, and the corresponding priorities can be sequentially It can also be set according to actual needs.

The host computer includes a test voltage determination module and a voltage control instruction generation module, and the test voltage determination module is used to determine the current test voltage according to the pre-stored test voltage and the priority of the test voltage, specifically, at the start of the test or at the previous test voltage. When all test items are tested, the test voltage determination module can determine the test voltage with the highest priority from the test voltages to be tested as the current test voltage. The voltage control command generation module is used to generate a voltage control command according to the current test voltage and send it to the DC power supply, and the DC power supply outputs the current test voltage when receiving the voltage control command. The host computer is used to control the DC power supply to output different test voltages. Multiple test voltages of different levels can be automatically tested in turn without manual replacement of test voltages, which not only improves the detection efficiency, but also avoids damage to the drive board due to incorrect voltage settings.

In an optional embodiment of the present invention, the upper computer pre-stores a driving board information-driving scheme mapping table, the upper computer includes a driving scheme determination module and a test instruction generation module, and the driving scheme determination module is used for driving board information-driving scheme The mapping table determines the driving scheme that matches the information of the driving board. The driving scheme includes at least one test item, a test signal corresponding to the test item, the on-off mode of the test point in the tooling board and the needle bed, and the test instruction generation module is used according to The drive scheme generates test instructions and sends them to the test box.

In an optional embodiment of the present invention, the tooling board includes a test scheme determination module, a test carrier board formation module, a transmission channel formation module and a test signal transmission module.

The test plan determination module is used to determine the current test item, the test signal corresponding to the test item, the on-off mode of the test points in the tooling board and the needle bed according to the test instruction, and the test carrier board forming module is used to control the tooling according to the on-off mode The test points in the board are turned on and off to form the test carrier board of the drive board, and the transmission channel forming module is used to control the on and off of the test points of the needle bed through the on-off method to form a power transmission channel and a test signal transmission channel, and the test signal is sent The module is used to send the test signal to the drive board through the test signal transmission channel, and the DC power supply transmits the test voltage to the drive board through the power transmission channel to supply power to the busbar of the drive board.

Wherein, the test command is generated according to the driving scheme, so the test command includes the current test item, the test signal corresponding to the test item, the on-off mode of the test point in the tooling board and the needle bed.

In an optional embodiment of the present invention, fault codes and proportional relationships corresponding to the test items are pre-stored in the tooling board, and the tooling board further includes an analog signal information determination module and an analog signal processing module, and the analog signal information determination module is used for When the test signal is an analog signal, determine the fault code and proportional relationship corresponding to the test item. The analog signal processing module is used to judge whether the ratio between the test signal and the feedback signal satisfies the proportional relationship. If not, generate the fault code corresponding to the test item. and sent to the host computer. The feedback signal may include sampled values of the test voltage and the test signal. It should be noted that in this embodiment, the test voltage delivered by the DC power supply is also an analog signal. When the analog signal is used as the input of the drive board, for the convenience of description, the test voltage delivered by the DC power supply and the analog signal generated by the test box are used. The test signals are collectively referred to as test signals.

In an example of this embodiment, the driving board is provided with a sampling circuit for sampling the bus voltage of the driving board, and the test item may include the detection of the sampling circuit. The sampling circuit is a very important circuit, and the analog bus sampling The value DBVD signal is an important control signal for the inverter. For example, when the sampled bus voltage is higher than 690VDC, it is necessary to open the inverter brake tube GB to discharge energy to prevent energy accumulation and damage the inverter. At the same time, the DBVD signal is used for frequency conversion. When the sampled bus voltage is equal to or higher than 800VDC for a period of time, the bus overvoltage fault will be reported, and the drive signal of the inverter will be turned off to protect the inverter module from damage. When the sampled bus voltage is equal to or lower than 300VDC and continues for a period of time, the bus undervoltage fault will be reported, the drive signal of the inverter will be turned off, and the inverter will be stopped to prevent damage to the inverter. Therefore, multiple levels of test voltages are required. to detect the bus sampling circuit. The voltage proportional relationship of the sampling circuit is a fixed value, which can be set according to actual needs. When different test voltages are input to the busbar of the driver board, if the capacitance and resistance of the circuit in the driver board operate normally, the test voltage will be the same as the collected DBVD value. If the ratio conforms to the proportional relationship of the voltage, it can be determined that the sampling circuit is operating normally; otherwise, it does not conform to the proportional relationship, and it can be determined that the sampling circuit is abnormal and a corresponding fault code is generated and sent to the host computer.

If the ratio of voltage is 200:1, when the test voltage is 300VDC, the standard value of DBVD is 1.5V, when the test voltage is 540VDC, the standard value of DBVD is 2.7V, and when the test voltage is 800VDC, the standard value of DBVD is 4V . If the DBVD meets the corresponding standard value, it can be determined that the ratio between the test voltage and the collected DBVD is in a proportional relationship.

Considering that there is a certain deviation in the sampling resistance in the sampling circuit, the error range can be set accordingly. For example, if the error range when sampling DBVD for test voltages of 300VDC, 500VDC, and 800VDC is ±0.2V, ±0.3V, and ±0.4V, respectively, then The sampling ranges of DBVD sampled at 300VDC, 500VDC, and 800VDC are 1.5V±0.2V, 2.7V±0.3V, and 4V±0.4V, respectively. When the analog signal processing module determines that the sampling value DBVD falls within the corresponding sampling range, it is determined that the sampling circuit operates normally; otherwise, it is determined that the sampling circuit is faulty, and a corresponding fault code is reported. For example, when the fault code is "13", it means the bus voltage detection fault, and when the fault code is "14", it means the fan drive circuit is faulty. In addition, the tooling board can also be provided with a signal scaling module, which is used to scale up or down the sampled DBVD and then transmit it to the analog signal processing module. The analog signal processing module should adjust the sampling range accordingly when processing the DBVD.

There is also a fault detection circuit in the driver board, and the test items can include fault detection circuit detection. When the test voltage is 300VDC and 800VDC respectively, the fault detection circuit should send the bus undervoltage signal and busbar overvoltage signal to the tooling board respectively. The tooling board does not receive the above signals when the test voltage is 300VDC and 800VDC respectively. The analog signal processing module can determine the abnormality of the fault detection circuit and report the corresponding fault code.

In an optional embodiment of the present invention, fault codes and signal variation rules corresponding to the test items are pre-stored in the tooling board, and the tooling board further includes a digital signal information determination module and a digital signal processing module, and the digital signal information determination module is used for When the test signal is a digital signal, determine the fault code and signal change rule corresponding to the test item. The digital signal processing module is used to judge whether the feedback signal meets the signal change rule. If not, the fault code corresponding to the test item is generated and sent. to the host computer.

The driver board is provided with driver circuits, such as UN driver circuit, fan driver circuit, relay driver circuit, etc. The test items can include items for testing these signal processing circuits. When the digital test signal generated by the test box is input into the driver board , the drive circuit of the drive board will process the test signal to obtain the feedback signal, and the signal change rule is the rule of the drive circuit to process the test signal. The signal processing module can determine whether the feedback signal is at a low level, and if so, it is determined that the feedback signal satisfies the signal variation law and the drive circuit operates normally; The fault code corresponding to the circuit is sent to the upper computer. For example, when the fault code is "00UN", it means that the UN drive circuit is faulty, and when the fault code is "0800", it means that the fan drive circuit is faulty.

In an optional embodiment of the present invention, at least one power supply circuit is provided on the drive board. After the test voltage is delivered to the drive board, the power supply circuit sends a power supply circuit signal to the test box. The tooling board of the test box is pre-stored with the power supply circuit. The fault code and tolerance range corresponding to the circuit. The tooling board also includes a power supply circuit signal detection module. The power supply circuit signal detection module is used to determine whether the power supply circuit signal is within the preset tolerance range. If not, generate a fault corresponding to the power supply circuit. code and send it to the host computer.

After the bus of the driver board is connected to the high-voltage power supply, the power supply circuit on the board to be tested is turned on. There are 24V, ±15V, 5V, 22V, 16V, 6V and other circuit power supplies on the driver board. Tolerance range, the circuit power supply will send analog signals to the tooling board respectively, the tooling board will read these analog signals in real time, and judge whether the analog signal is within the tolerance range corresponding to the circuit power supply, otherwise it will report the corresponding fault code For example, when the fault code is "1500", it means that the 15V power supply is faulty, and when the fault code is "001500", it means that the -15V power supply is faulty.

In general, the excitation source signal input to the driver board to be tested is divided into analog signal and digital signal, wherein the analog signal includes the test voltage delivered by the DC power supply and the test signal output by the test box, while the digital signal It is the test signal output by the test box. As shown in Figure 3, the processing process of the signal input to the driver board to be tested is as follows:

S301, digital signal or analog signal is input to the drive board to be tested;

S302, the driver board processes the input signal;

S303, the drive board outputs the processed digital signal or analog signal to the test box;

S304, the test box processes the signal fed back by the driver board to obtain a processing result;

S305, the test box uploads the processing result to the upper computer.

After the driver board to be tested is connected to the high-voltage power supply, the signal actively output by the driver board to be tested to the test box is an analog signal, which is generated by the power circuit in the driver board, as shown in Figure 4. The signal processing process is as follows:

S401, the drive board outputs the analog signal to the test box;

S402, the test box processes the analog signal to obtain the processing result;

S403, the test box uploads the processing result to the upper computer.

It should be noted that the above test items, test signals and circuits in the driver board are only examples, not as limitations on the test items, test signals and driver boards in the present invention, and other test items, For the test signal, other circuits may also be provided in the driver board, for example, a temperature detection circuit is also provided in the driver board.

In an optional embodiment of the present invention, as shown in FIG. 5 , the drive detection system further includes a data center 5 and a mobile phone APP6, and the data center 5 is respectively connected to the host computer 1 and the mobile phone APP6.

The test box is also used to send the test result code to the upper computer, and the upper computer is used to obtain the test result according to the test result code. For example, if the test passes, the upper computer can display "pass"; if the test fails, the upper computer can All fault codes can be displayed, and the text annotations corresponding to the fault codes can also be displayed, so that the staff can check them and transmit the test results to the data center. The data center is equivalent to a data cloud platform for storing test results. The data center can also store test results. The test results are sent to the mobile APP, and the mobile APP is used to display the test results. The mobile APP is installed on the staff's mobile phone, and the staff can see the test results at the first time.

In an optional embodiment of the present invention, the test box further includes a self-test module, and the self-test module is used to test the tooling board in the test box before testing the driving board. Similar to the testing process for the driving board, it can be The tooling board can be detected by inputting a test signal to the tooling board to obtain the feedback signal of the tooling board, or by connecting the high-voltage power supply to the tooling board and receiving the signal actively sent by the tooling board to detect the tooling board. When the fault code of the tooling board is generated and sent to the upper computer. The host computer is then sent to the mobile terminal where the development engineer is located through the data center, so as to check and repair the fault of the test box at the first time, so as to avoid affecting the production efficiency of the production line. The test work of the driver board.

Embodiment 2

FIG. 6 is a flowchart of a driving board detection method provided in Embodiment 2 of the present invention. This embodiment can be applied to the case of performing fault detection on a driving board. The driving board detection method can be configured in the driving board detection in the first implementation. In the system, as shown in Figure 6, the driving board detection method includes:

S601, the test box identifies the electronic label on the driver board to obtain the driver board information and sends it to the host computer.

S602, the host computer generates a voltage control command and a test command according to the driver board information;

S603, the DC power supply outputs the test voltage according to the voltage control command;

S604. The test box generates a test signal according to the test instruction and controls the on-off of the test points in the tooling board and the needle bed, so as to output the test signal and test voltage to the driving board, receive the feedback signal of the driving board, and generate The test result code is sent to the upper computer.

In an optional embodiment of the present invention, the host computer pre-stores a plurality of test voltages of different levels and the priorities of the test voltages, and the host computer generates a voltage control command according to the driver board information, including:

Determine the current test voltage according to the pre-stored test voltage and the priority of the test voltage;

Voltage control commands are generated based on the current test voltage and sent to the DC power supply.

In an optional embodiment of the present invention, the host computer pre-stores a driver board information-driving scheme mapping table, and the host computer generates a test instruction according to the driver board information, including:

Determine a driving scheme matching the driving board information in the driving board information-driving scheme mapping table, and the driving scheme includes at least one test item, a test signal corresponding to the test item, the on-off mode of the test point in the tooling board and the needle bed;

Test instructions are generated according to the drive scheme and sent to the test box.

In an optional embodiment of the present invention, the test box generates a test signal according to the test instruction and controls the on-off of test points in the tooling board and the needle bed, so as to output the test signal and test voltage to the driving board, including:

Determine the current test item, the test signal corresponding to the test item, and the on-off mode of the test point in the tooling board and the needle bed according to the test instruction;

Control the on-off of the test points in the tooling board according to the on-off mode to form the test carrier board of the drive board;

Control the on-off of the test point of the needle bed according to the on-off method to form a power transmission channel and a test signal transmission channel;

Send the test voltage to the driver board through the power transmission channel;

Send the test signal to the driver board through the test signal transmission channel.

In an optional embodiment of the present invention, the test instruction includes the test item, the test signal corresponding to the test item, and the on-off mode of the test point in the tooling board and the needle bed, and the tooling board is pre-stored with the test item corresponding to the test item. Fault code and proportional relationship, receive the feedback signal of the driver board, and generate the test result code according to the feedback signal and send it to the upper computer, including:

When the test signal is an analog signal, determine the fault code and proportional relationship corresponding to the test item;

Determine whether the ratio between the test signal and the feedback signal satisfies the proportional relationship, if not, generate a fault code corresponding to the test item and send it to the upper computer.

In an optional embodiment of the present invention, receiving the feedback signal of the driving board, and generating a test result code according to the feedback signal and sending it to the upper computer, also includes:

When the test signal is a digital signal, determine the fault code and signal change rule corresponding to the test item;

Determine whether the feedback signal satisfies the signal change law, if not, generate the fault code corresponding to the test item and send it to the upper computer.

In an optional embodiment of the present invention, at least one power supply circuit is provided on the driver board. After the test voltage is delivered to the driver board, the power supply circuit sends a signal of the power supply circuit to the tooling board. The tooling board is pre-stored with corresponding power supply circuits. The fault code and tolerance range of the driver board detection method also includes:

The tooling board judges whether the power circuit signal is within the preset tolerance range, and if not, generates a fault code corresponding to the power circuit and sends it to the host computer.

In an optional embodiment of the present invention, the drive board detection system further includes a data center and a mobile phone APP, and the drive board detection method further includes:

The upper computer is used to obtain the test result according to the test result code, and transmit the test result to the data center;

The data center stores the test results and sends the test results to the mobile APP;

The mobile APP displays the test results.

In an optional embodiment of the present invention, before the test box identifies the electronic label on the drive board to obtain the drive board information and sends it to the host computer, the drive board detection method further includes:

The test box detects the tooling board, and when it detects that the tooling board is faulty, it generates a tooling board fault code and sends it to the host computer.

The driving board detection method of this embodiment can be applied to the driving board detection system provided in the first embodiment, and has the beneficial effects corresponding to the driving board detection system. It should be noted that, for the method embodiment, since it is basically similar to the system embodiment, the description is relatively simple, and for related parts, please refer to the partial description of the system embodiment.

Embodiment 3

FIG. 7 shows a schematic structural diagram of an electronic device 70 that can be used to implement embodiments of the present invention. Electronic devices are intended to represent various forms of digital computers, such as laptops, desktops, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. Electronic devices may also represent various forms of mobile devices, such as personal digital processors, cellular phones, smart phones, wearable devices (eg, helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions are by way of example only, and are not intended to limit implementations of the inventions described and/or claimed herein.

As shown in FIG. 7, the electronic device 70 includes at least one processor 71, and a memory, such as a read only memory (ROM) 72, a random access memory (RAM) 73, etc., connected in communication with the at least one processor 71, wherein the memory stores There is a computer program executable by at least one processor, the processor 71 can be executed according to a computer program stored in a read only memory (ROM) 72 or loaded from a storage unit 78 into a random access memory (RAM) 73. Various appropriate actions and processes are performed. In the RAM 73, various programs and data necessary for the operation of the electronic device 70 can also be stored. The processor 71 , the ROM 72 and the RAM 73 are connected to each other through a bus 74 . An input/output (I/O) interface 75 is also connected to bus 74 .

Various components in the electronic device 70 are connected to the I/O interface 75, including: an input unit 76, such as a keyboard, mouse, etc.; an output unit 77, such as various types of displays, speakers, etc.; a storage unit 78, such as a magnetic disk, an optical disk etc.; and a communication unit 79, such as a network card, modem, wireless communication transceiver, and the like. The communication unit 79 allows the electronic device 70 to exchange information/data with other devices through a computer network such as the Internet and/or various telecommunication networks.

The processor 71 may be various general and/or special purpose processing components having processing and computing capabilities. Some examples of processor 71 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various specialized artificial intelligence (AI) computing chips, various processors that run machine learning model algorithms, digital signal processing processor (DSP), and any suitable processor, controller, microcontroller, etc. The processor 71 performs the various methods and processes described above, such as the driver board detection method.

In some embodiments, the driver board detection method may be implemented as a computer program tangibly embodied in a computer-readable storage medium, such as storage unit 78 . In some embodiments, part or all of the computer program may be loaded and/or installed on the electronic device 70 via the ROM 72 and/or the communication unit 79 . When the computer program is loaded into RAM 73 and executed by processor 71, one or more steps of the review task assignment method described above may be performed. Alternatively, in other embodiments, the processor 71 may be configured to perform the driver board detection method by any other suitable means (eg, by means of firmware).

Various implementations of the systems and techniques described herein above may be implemented in digital electronic circuitry, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips system (SOC), load programmable logic device (CPLD), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include being implemented in one or more computer programs executable and/or interpretable on a programmable system including at least one programmable processor that The processor, which may be a special purpose or general-purpose programmable processor, may receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device an output device.

Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general purpose computer, special purpose computer or other programmable data processing apparatus, such that the computer programs, when executed by the processor, cause the functions/operations specified in the flowcharts and/or block diagrams to be carried out. The computer program may execute entirely on the machine, partly on the machine, as a stand-alone software package partly on the machine and partly on a remote machine or entirely on the remote machine or server.

In the context of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in connection with the instruction execution system, apparatus or device. Computer-readable storage media may include, but are not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or devices, or any suitable combination of the foregoing. Alternatively, the computer-readable storage medium may be a machine-readable signal medium. More specific examples of machine-readable storage media would include one or more wire-based electrical connections, portable computer disks, hard disks, random access memory (RAM), read only memory (ROM), erasable programmable read only memory (EPROM or flash memory), fiber optics, compact disk read only memory (CD-ROM), optical storage, magnetic storage, or any suitable combination of the foregoing.

To provide interaction with a user, the systems and techniques described herein may be implemented on an electronic device having a display device (eg, a CRT (cathode ray tube) or an LCD (liquid crystal display)) for displaying information to the user monitor); and a keyboard and pointing device (eg, a mouse or trackball) through which a user can provide input to the electronic device. Other kinds of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (eg, visual feedback, auditory feedback, or tactile feedback); and can be in any form (including acoustic input, voice input, or tactile input) to receive input from the user.

The systems and techniques described herein may be implemented on a computing system that includes back-end components (eg, as a data server), or a computing system that includes middleware components (eg, an application server), or a computing system that includes front-end components (eg, a user's computer having a graphical user interface or web browser through which a user may interact with implementations of the systems and techniques described herein), or including such backend components, middleware components, Or any combination of front-end components in a computing system. The components of the system may be interconnected by any form or medium of digital data communication (eg, a communication network). Examples of communication networks include: Local Area Networks (LANs), Wide Area Networks (WANs), blockchain networks, and the Internet.

A computing system can include clients and servers. Clients and servers are generally remote from each other and usually interact through a communication network. The relationship of client and server arises by computer programs running on the respective computers and having a client-server relationship to each other. The server can be a cloud server, also known as a cloud computing server or a cloud host. It is a host product in the cloud computing service system to solve the traditional physical host and VPS services, which are difficult to manage and weak in business scalability. defect.

It should be understood that steps may be reordered, added or deleted using the various forms of flow shown above. For example, the steps described in the present invention can be performed in parallel, sequentially or in different orders, and as long as the desired results of the technical solutions of the present invention can be achieved, no limitation is imposed herein.

The above-mentioned specific embodiments do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may occur depending on design requirements and other factors. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (12)

1. A drive plate detection system is characterized by comprising an upper computer, a direct current power supply and a test box, wherein the direct current power supply and the test box are connected with the upper computer, the test box comprises a tooling plate and a needle bed, the tooling plate and the direct current power supply are connected with a drive plate to be detected through the needle bed,

the test box is used for identifying the electronic tag on the drive board to obtain drive board information and sending the drive board information to the upper computer;

the upper computer is used for generating a voltage control instruction and a test instruction according to the drive plate information;

the direct current power supply is used for outputting a test voltage according to the voltage control instruction;

the test box is also used for generating a test signal according to the test instruction, controlling the on-off of the test points in the tooling plate and the needle bed so as to output the test signal and the test voltage to the drive plate, receiving a feedback signal of the drive plate, generating a test result code according to the feedback signal and sending the test result code to the upper computer.

2. The system of claim 1, wherein the upper computer has a plurality of different levels of test voltages and priorities for the test voltages pre-stored therein, the upper computer comprising:

the test voltage determining module is used for determining the current test voltage according to the pre-stored test voltage and the priority of the test voltage;

and the voltage control instruction generating module is used for generating a voltage control instruction according to the current test voltage and sending the voltage control instruction to the direct-current power supply.

3. The system of claim 1, wherein the host computer has a driver board information-driver scheme mapping table pre-stored therein, the host computer comprising:

the driving scheme determining module is used for determining a driving scheme matched with the driving board information in the driving board information-driving scheme mapping table, wherein the driving scheme comprises at least one test item, a test signal corresponding to the test item, and on-off modes of test points in a tooling plate and a needle bed;

and the test instruction generating module is used for generating a test instruction according to the driving scheme and sending the test instruction to the test box.

4. The system of claim 1, wherein the tooling plate comprises:

the test scheme determining module is used for determining a current test item, a test signal corresponding to the test item and the on-off mode of the test points in the tooling plate and the needle bed according to the test instruction;

the test carrier plate forming module is used for controlling the on-off of the test points in the tooling plate according to the on-off mode so as to form a test carrier plate of the drive plate;

the transmission channel forming module is used for controlling the on-off of the test point of the needle bed through the on-off mode so as to form a power transmission channel and a test signal transmission channel, and the test voltage is transmitted to the drive plate through the power transmission channel;

and the test signal sending module is used for sending the test signal to the drive board through the test signal transmission channel.

5. The system of claim 1, wherein the test instructions include a test item, a test signal corresponding to the test item, and on/off patterns of test points in a tooling plate and a needle bed, the tooling plate pre-stores a fault code and a proportional relationship corresponding to the test item, and the tooling plate further comprises:

the analog signal information determining module is used for determining a fault code and a proportional relation corresponding to the test item when the test signal is an analog signal;

and the analog signal processing module is used for judging whether the ratio of the test signal to the feedback signal meets the proportional relation, and if not, generating a fault code corresponding to the test item and sending the fault code to the upper computer.

6. The system of claim 5, wherein the tooling plate further comprises:

the digital signal information determining module is used for determining a fault code and a signal change rule corresponding to the test item when the test signal is a digital signal;

and the digital signal processing module is used for judging whether the feedback signal meets the signal change rule, and if not, generating a fault code corresponding to the test item and sending the fault code to the upper computer.

7. The system of claim 1, wherein said driver board has at least one power circuit disposed thereon, said power circuit transmitting a power circuit signal to said tooling board after said test voltage is delivered to said driver board,

the frock board prestores with fault code and tolerance range that power supply circuit corresponds, the frock board still includes:

and the power circuit signal detection module is used for judging whether the power circuit signal is within a preset tolerance range, and if not, generating a fault code corresponding to the power circuit and sending the fault code to the upper computer.

8. The system according to any one of claims 1 to 7, further comprising a data center and a mobile phone APP, wherein the data center is respectively connected with the upper computer and the mobile phone APP,

the upper computer is used for obtaining a test result according to the test result code and transmitting the test result to the data center;

the data center is used for storing the test result and sending the test result to the mobile phone APP;

and the mobile phone APP is used for displaying the test result.

9. The system of any one of claims 1-7, wherein the test chamber further comprises:

and the self-checking module is used for detecting the tooling plate before testing the driving plate, and generating a tooling plate fault code and sending the tooling plate fault code to the upper computer when detecting that the tooling plate has a fault.

10. A drive plate detection method, comprising:

the test box identifies the electronic tag on the drive board to obtain drive board information and sends the drive board information to the upper computer;

the upper computer generates a voltage control instruction and a test instruction according to the drive plate information;

the direct current power supply outputs a test voltage according to the voltage control instruction;

the test box generates a test signal according to the test instruction, controls the on-off of the test points in the tooling plate and the needle bed so as to output the test signal and the test voltage to the drive plate, receives a feedback signal of the drive plate, generates a test result code according to the feedback signal and sends the test result code to the upper computer.

11. An electronic device, characterized in that the electronic device comprises:

at least one processor; and

a memory communicatively coupled to the at least one processor; wherein,

the memory stores a computer program executable by the at least one processor to enable the at least one processor to perform the drive board detection method of claim 10.

12. A computer readable storage medium storing computer instructions for causing a processor to implement the drive board detection method of claim 10 when executed.

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