Dual-channel test system, test method and storage medium

Abstract

The invention belongs to the technical field of equipment testing, and relates to a dual-channel testing system, a testing method and a storage medium. The dual-channel test system comprises a channel switching board, a first test instrument and a second test instrument, the channel switching board comprises a control module and a switching relay, and the first test instrument is connected to a first to-be-tested product through a first circuit of the switching relay to form a first test channel. The second test instrument is connected to a second to-be-tested product through a second line of the switching relay to form a second test channel. The control module is used for controlling the switching relay to conduct one of the first test channel and the second test channel. According to the dual-channel test system, the test channels are switched through the channel switching board, so that the test efficiency and flexibility are improved.

Description

Technical Field

[0001] The present application belongs to the technical field of equipment testing, and specifically relates to a dual-channel testing system, a testing method and a storage medium. Background Art

[0002] ATE (Automatic Test Equipment) testing is a must for every electronic product before it leaves the factory. With the increasing complexity and functionality of electronic products, the continuous improvement of corporate production capacity, and the increasing cost pressure brought by market competition, the testing phase requires higher speed and lower cost to meet the production needs of modern enterprises.

[0003] In current ATE testing, single-channel technology is used. This technical solution has several significant defects as follows:

[0004] 1) Low test efficiency: Once a single-channel ATE system starts testing, other operations cannot be performed in the same period. Therefore, the tester must wait for the test of the current product to be completed before starting the next product to be tested, which mainly includes loading and unloading materials and wiring of test ports. This single-channel operation method not only leads to low test throughput and efficiency, but also is difficult to improve.

[0005] 2) High test costs: Single-channel ATE systems typically require longer test cycles to complete the same number of tests, which consumes more human resources and equipment time, resulting in an increase in the overall cost of testing. Especially in a high-volume environment, these additional costs can quickly accumulate.

[0006] 3) More test instruments and space required: Single-channel ATE system testing requires more equipment and occupies more space. For scenarios where large quantities of product testing need to be completed continuously in a short period of time, if a single-channel system is used, a larger layout space needs to be planned to place more ATE test platforms, which increases the purchase cost of the test instruments and the space cost of the production line.

[0007] In summary, single-channel ATE systems have significant limitations and shortcomings in terms of efficiency and cost. For application scenarios that require high-efficiency, large-scale testing, the above problems are even more prominent. Summary of the invention

[0008] The embodiments of the present application provide a dual-channel test system, a test method and a storage medium to solve the deficiencies of the single-channel test system in the prior art in terms of efficiency and cost.

[0009] In a first aspect, an embodiment of the present application provides a method including a channel switching board, a first test instrument, and a second test instrument, wherein the channel switching board includes a control module and a switching relay, wherein the first test instrument is connected to a first product to be tested via a first circuit of the switching relay to form a first test channel, and the second test instrument is connected to a second product to be tested via a second circuit of the switching relay to form a second test channel, and the control module is used to control the switching relay to turn on one of the first test channel or the second test channel.

[0010] Optionally, the system also includes a first signal switch and a second signal switch. When the first product to be tested is connected to the control module through the first signal switch, the first signal switch is closed, and the control module receives a first material detection signal. When the second product to be tested is connected to the control module through the second signal switch, the second signal switch is closed, and the control module receives a second material detection signal.

[0011] Optionally, the control module includes a first signal input terminal, a second signal input terminal and a positive power input terminal, the first signal input terminal and the second signal input terminal are respectively connected to the positive power input terminal, the first product to be tested is connected to the control module through the first signal switch specifically: the negative power input terminal of the first product to be tested is connected to the first signal input terminal through the first signal switch, and the second product to be tested is connected to the control module through the second signal switch specifically: the negative power input terminal of the second product to be tested is connected to the second signal input terminal through the second signal switch.

[0012] Optionally, the system further includes a first fixture, a second fixture, a third signal switch and a fourth signal switch, the first fixture and the second fixture respectively include a cylinder and a solenoid valve, when the cylinder of the first fixture is connected to the control module through the third signal switch, the third signal switch is closed, and the control module receives a first cylinder detection signal, when the cylinder of the second fixture is connected to the control module through the fourth signal switch, the fourth signal switch is closed, and the control module receives a second cylinder detection signal.

[0013] Optionally, when the control module receives the first material detection signal and the first cylinder detection signal, it controls the solenoid valve of the first fixture to open to fix the first product to be tested; when the control module receives the second material detection signal and the second cylinder detection signal, it controls the solenoid valve of the second fixture to open to fix the second product to be tested.

[0014] Optionally, the system also includes a host computer, which is respectively communicated with the first test instrument, the second test instrument, the channel switching board, the first product to be tested and the second product to be tested, and the host computer is used to obtain a selected test channel, send a channel control instruction to the channel switching board according to the selected test channel to make the selected test channel conductive, control the product to be tested connected to the selected test channel to execute a test process, and obtain test results from the test instrument connected to the selected test channel.

[0015] In a second aspect, an embodiment of the present application provides a dual-channel testing method, which is applied to any of the above-mentioned dual-channel testing systems, and the method includes:

[0016] Get the selected test channel;

[0017] Sending a channel control instruction to the channel switching board according to the selected test channel to make the selected test channel conductive;

[0018] Controlling the product to be tested connected to the selected test channel to execute a test process;

[0019] The test result is obtained from the test instrument connected to the selected test channel.

[0020] Optionally, after the step of controlling the product to be tested connected to the selected test channel to execute the test process, the step further includes:

[0021] After the product to be tested is tested, a channel control instruction is sent to the channel switching board to enable another test channel to be turned on;

[0022] Control another product to be tested connected to the another test channel to execute a test process;

[0023] The test result is obtained from the test instrument connected to the another test channel.

[0024] Optionally, the system includes two fixtures, the fixture includes a cylinder and a solenoid valve, and before the step of sending a channel control instruction to the channel switching board according to the selected test channel, the step also includes:

[0025] It is detected whether the product to be tested and the cylinder are installed on the two fixtures. If it is detected that the product to be tested and the cylinder are installed on the fixture, a solenoid valve opening instruction is sent to open the solenoid valve on the fixture to fix the product to be tested.

[0026] In a third aspect, an embodiment of the present application provides a computer storage medium, which stores instructions or programs. When the instructions or programs are executed by at least one processor, the at least one processor executes any one of the methods described above.

[0027] In an embodiment of the present application, a dual-channel test system is provided. Different from the prior art, the dual-channel test system includes a channel switching board, and the channel switching board includes a control module and a switching relay. The same test instrument or different test instruments can be connected to different products to be tested through the first line and the second line of the switching relay to form two test channels. The control module is used to control the switching relay to turn on one of the first test channel or the second test channel. The dual-channel test system of the present application switches the test channels by the channel switching board, and can test the products to be tested in the two test channels in turn, and perform different test tasks in the two test channels in turn, which not only improves the test efficiency and saves the test cost, but also improves the test flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The module structure diagram of a dual-channel test system is shown as an example;

[0029] Figure 2 A connection diagram of a test instrument, a switching relay and a product to be tested is shown as an example;

[0030] Figure 3 Another connection diagram of a test instrument, a switching relay and a product to be tested is shown as an example;

[0031] Figure 4 An electrical schematic diagram of a channel switching board is shown by way of example;

[0032] Figure 5 A connection diagram of a dual-channel test system is exemplarily shown;

[0033] Figure 6 An electrical schematic diagram of a test instrument is exemplarily shown;

[0034] Figure 7 A flow chart of a dual-channel test method is exemplarily shown. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0036] Please refer to Figure 1 , Figure 1 The following is an example of a module structure diagram of a dual-channel test system. Figure 1 As shown, the dual-channel test system 100 includes a first test instrument 10A, a second test instrument 10B and a channel switching board 20. The channel switching board 20 includes a control module 201 and a switching relay 202. The first test instrument 10A is connected to the first product to be tested 30A through the first line of the switching relay 202 to form a first test channel. The second test instrument 10B is connected to the second product to be tested 30B through the second line of the switching relay 202 to form a second test channel. The control module 201 is used to control the switching relay 202 to turn on one of the first test channel or the second test channel.

[0037] Please refer to Figure 2 and Figure 3 , Figure 2 and Figure 3 The following is an example of a connection diagram of a test instrument, a switching relay, and a product to be tested. Figure 2 and Figure 3 As shown, the switching relay 202 includes a switching switch, a normally closed end and a normally open end, and the switching relay 202 also includes a first circuit and a second circuit, wherein the first circuit is connected to the normally closed end, and the second circuit is connected to the normally open end. When the control module 201 controls the switching switch to be disconnected, the first circuit is turned on (i.e., the first test channel is turned on), and when the control module 201 controls the switching switch to be closed, the second circuit is turned on (i.e., the second test channel is turned on).

[0038] The first test instrument 10A and the second test instrument 10B may include more than one test instrument. In one embodiment, the first test instrument 10A and the second test instrument 10B are the same test instrument. Figure 2 As shown, the test instrument 10A includes a first data transceiver and a second data transceiver. The first data transceiver is connected to the first product under test 30A through a first line in the switching relay, and the second data transceiver is connected to the second product under test 30B through a second line in the switching relay. Figure 6 , Figure 6 The electrical schematic diagram of a test instrument is shown as an example. Figure 6 As shown, the DC load meter 9# includes an AC power interface, an RS232 interface, a first aviation plug (ie, a first data transceiver end) and a second aviation plug (ie, a second data transceiver end).

[0039] In other embodiments, the first test instrument 10A and the second test instrument 10B are different test instruments. Figure 3 As shown, the test instrument 10A is connected to the first product under test 30A through the first line in the switching relay, and the test instrument 10B is connected to the second product under test 30B through the second line in the switching relay. At this time, the test instrument 10A and the test instrument 10B may only include one data transceiver.

[0040] Please refer to Figure 4 The control module 202 includes a DC power supply access terminal (ports 20-22), multiple signal input terminals (ports 1-5), multiple signal output terminals (ports 10-14) and an RS232 / 485 interface. The positive power signal input terminal COM0 is respectively connected to the first signal input terminal DI-1, the second signal input terminal DI-2, the third signal input terminal DI-3 and the fourth signal input terminal DI-1. The positive power signal output terminal COM1 is respectively connected to the first signal output terminal DO-1, the second signal output terminal DO-2 and the third signal output terminal DO-3.

[0041] In one embodiment, the system further includes a first signal switch, a second signal switch, a third signal switch and a fourth signal switch. The first signal switch is connected to the first signal input terminal DI-1, the second signal switch is connected to the second signal input terminal DI-2, the third signal switch is connected to the third signal input terminal DI-3, and the fourth signal switch is connected to the fourth signal input terminal DI-4. In one embodiment, the first signal switch, the second signal switch, the third signal switch and the fourth signal switch are relay switches, and when there is a suitable voltage difference between the two sides of the switch, the switch can be closed. After the switch is closed, the corresponding signal input terminal receives an electrical signal.

[0042] In one embodiment, when the first product to be tested 30A is connected to the control module 202 through the first signal switch, there is a voltage difference between the two ends of the first signal switch, so that the first signal switch is closed, and the control module 202 receives the first material detection signal. Similarly, when the second product to be tested 30B is connected to the control module 202 through the second switch, there is a voltage difference between the two ends of the second signal switch, so that the second signal switch is closed, and the control module 202 receives the second material detection signal. Specifically, when the first product to be tested 30A is tested, the negative power input terminal (such as the charging port) of the first product to be tested 30A is connected to the first signal input terminal DI-1 through the first signal switch; when the second product to be tested 30B is tested, the negative power input terminal of the second product to be tested 30B is connected to the second signal input terminal DI-2 through the second signal switch. Among them, the first product to be tested 30A and the second product to be tested 30B can be portable energy storage products or other electronic devices. When the negative power input terminal of the first product to be tested 30A is connected to the first signal switch, a negative voltage is generated at its access terminal, forming a voltage difference with the positive voltage at the other end of the first signal switch, so that the first signal switch is closed.

[0043] In one embodiment, the system further includes a first fixture for placing the first product to be tested 30A and a second fixture for placing the second product to be tested 30B. The first fixture and the second fixture respectively include a cylinder and a solenoid valve, and the products to be tested are fixed by the cylinder and the solenoid valve. To achieve automated testing, the cylinder and the solenoid valve on the first fixture and the second fixture are respectively connected to the control module 202, so that the control module 202 can control the corresponding solenoid valve to open according to whether there is a cylinder on the fixture.

[0044] Specifically, when the cylinder of the first fixture is connected to the third signal input terminal DI-3 of the control module 202 through the third signal switch, the third signal switch is closed, and the control module 202 receives the first cylinder detection signal. Similarly, when the cylinder of the second fixture is connected to the fourth signal input terminal DI-4 of the control module 202 through the fourth signal switch, the fourth signal switch is closed, and the control module 202 receives the second cylinder detection signal. The closing principle of the third signal switch and the fourth signal switch is the same as that of the first signal switch and the second signal switch, and will not be repeated here.

[0045] When the control module 202 receives the first material detection signal and the first cylinder detection signal, it controls the solenoid valve of the first fixture to open to fix the first product to be tested 30A. When the control module receives the second material detection signal and the second cylinder detection signal, it controls the solenoid valve of the second fixture to open to fix the second product to be tested 30B. Specifically, the solenoid valve of the first fixture is connected to the second signal output terminal DO-2 of the control module 202, and the solenoid valve of the second fixture is connected to the third signal output terminal DO-3 of the control module 202. The control module 202 controls the solenoid valve on the first fixture to open by controlling the second signal output terminal DO-2 to output an electrical signal. Similarly, the control module 202 controls the third signal output terminal DO-3 to output an electrical signal to control the solenoid valve on the second fixture to open. In one embodiment, the control module 202 controls whether the positive signal output terminal COM1 of the power supply is connected to the first signal output terminal DO-1, and / or the second signal output terminal DO-2, and / or the third signal output terminal DO-3 to control whether the first signal output terminal DO-1, the second signal output terminal DO-2 and the third signal output terminal DO-3 output electrical signals.

[0046] After the control module 202 controls the solenoid valve on the first fixture or the second fixture to open, based on the test channel selected by the user, the selected test channel is controlled to be turned on. Specifically, when the test channel selected by the user is the first test channel, the control module 202 controls the first signal output terminal DO-1 not to output an electrical signal, and when the test channel selected by the user is the second test channel, the control module 202 controls the first signal output terminal DO-1 to output an electrical signal. When the first signal output terminal DO-1 does not output an electrical signal, the first circuit in the switching relay 201 connected to the first signal output terminal DO-1 is turned on, and when the first signal output terminal DO-1 outputs an electrical signal, the second circuit in the switching relay 201 is turned on.

[0047] In one embodiment, the system further includes a host computer, which is respectively connected to the first test instrument 10A, the second test instrument 10B, the channel switching board 20, the first product to be tested 30A and the second product to be tested 30B in communication. In this embodiment, the host computer obtains the test channel selected by the user, and obtains the detection signal (such as the first material detection signal, the first cylinder detection signal, the second material detection signal and the second cylinder detection signal) from the control module 202, and determines whether the material detection signal and the cylinder detection signal corresponding to the selected test channel exist. If so, a channel control instruction is sent to the channel switching board so that the channel switching board turns on the selected test channel. Subsequently, the host computer controls the product to be tested connected to the selected test channel to execute the test process, and obtains the test result from the test instrument connected to the selected test channel.

[0048] When the product to be tested is tested, it is determined whether the material detection signal and cylinder detection signal corresponding to the other test channel exist. If so, a channel control instruction is sent to the channel switching board to make the channel switching board turn on the other test channel. Subsequently, the host computer controls the product to be tested connected to the other test channel to execute the test process and obtain the test results from the test instrument connected to the other test channel. This cycle is repeated to realize the test of the products to be tested in the two test channels in turn.

[0049] Please refer to Figure 5 , Figure 5A connection diagram of a dual-channel test system is shown as an example. The dual-channel test system is a system for testing portable energy storage products, including a host computer, multiple test instruments and a channel switching board. The host computer communicates with each test instrument and the channel switching board based on the RS232 serial port, and communicates with the first product to be tested and the second product to be tested based on Bluetooth. The test instrument includes a DC load (TYPE-C), a DC load (cigarette lighter), a DC load (USB), a DC power supply, an AC power supply, an AC load, etc., and tests the functions of the product such as TYPE-C, a cigarette lighter, a USB port, a DC power supply, an AC power supply, and an AC load. Each test instrument is connected to one end of the channel switching board via a data line, and each interface of the first product to be tested and the second product to be tested is also connected to the other end of the channel switching board via a data line. Specifically, the test instrument is connected to one end of the switching relay in the channel switching board, wherein each test instrument includes a first data transceiver and a second data transceiver, the first data transceiver is connected to the first line of the switching relay, and the second data transceiver is connected to the second line of the switching relay. The first product to be tested and the second product to be tested are connected to the other end of the switching relay in the channel switching board, wherein the data lines of each interface of the first product to be tested are connected to the normally closed end of the switching relay, and the data lines of each interface of the second product to be tested are connected to the normally open end of the switching relay. The user can control the conduction of the corresponding test channel by selecting the test channel and the test mode in the host computer. The test mode includes a single-channel test mode and a dual-channel test mode. When the user selects a single-channel test, the host computer controls the channel switching board so that the selected test channel is continuously in the test state. When the user selects the dual-channel test mode, the host computer controls the channel switching board so that the two test channels are in the test state in turn.

[0050] See also Figure 7 , Figure 7 A flow chart of a dual-channel testing method is shown as an example. The dual-channel testing method is applied to Figure 1-6 In the dual-channel test system, the method comprises:

[0051] Step S701, obtaining the selected test channel.

[0052] After the host computer software of the dual-channel test system is started, the test channel used for the first test is set to the first test channel by default. The user can also select the second test channel as the test channel used for the first test through the interactive interface. In some embodiments, step S701 also includes: obtaining the selected test mode, the test mode including the dual-channel test mode and the single-channel test mode.

[0053] Step S702: Send a channel control instruction to the channel switching board according to the selected test channel to make the selected test channel conductive.

[0054] In one embodiment, the dual-channel test system includes two fixtures, each fixture includes a cylinder and a solenoid valve, and before step S702, it also includes: detecting whether the product to be tested and the cylinder are installed on the two fixtures, and if it is detected that the product to be tested and the cylinder are installed on the fixture, sending a solenoid valve opening instruction so that the solenoid valve on the fixture is opened to fix the product to be tested. It can be understood that if the product to be tested and the cylinder are installed on both fixtures, the host computer can control the solenoid valves on both fixtures to be opened, or only control the solenoid valve on the fixture corresponding to the selected test channel to be opened.

[0055] In other embodiments, before step S702, it also includes: determining whether the product to be tested and the cylinder are installed on the fixture corresponding to the selected test channel, and if so, sending a solenoid valve opening instruction to the channel switching board so that the channel switching board controls the solenoid valve on the fixture to open to fix the product to be tested, and sending a channel control instruction to the channel switching board so that the channel switching board controls the selected test channel to be turned on.

[0056] Step S703, controlling the product to be tested connected to the selected test channel to execute the test process.

[0057] In one embodiment, the host computer controls the product to be tested connected to the selected test channel to execute the test process based on the external input start test instruction. In other embodiments, after the host computer confirms that the selected test channel is turned on, it automatically controls the product to be tested connected to the selected test channel to execute the test process.

[0058] Step S704: Acquire test results from the test instrument connected to the selected test channel.

[0059] At this point, the test system has completed a test. In order to implement the test in rotation, after step S704, it also includes: after the product to be tested is tested, a channel control instruction is sent to the channel switching board to make another test channel conductive, and control another product to be tested connected to another test channel to execute the test process, and obtain the test result from the test instrument connected to another test channel. This cycle is repeated to implement the system to test the products to be tested in two test channels in rotation.

[0060] In one embodiment, in order to be compatible with the original single-channel test mode, before sending a channel control instruction to the channel switching board to make another test channel turned on, it also includes: determining whether the selected test mode is a dual-channel test. If so, entering the step of sending a channel control instruction to the channel switching board to make another test channel turned on; if not, not entering the channel switching process, and continuing to test on the selected test channel.

[0061] The dual-channel test system provided by the embodiment of the present application includes a channel switching board, which includes a control module and a switching relay. The same test instrument or different test instruments can be connected to different products to be tested through the first line and the second line of the switching relay to form two test channels, and the control module is used to control the switching relay to turn on one of the first test channel or the second test channel. The dual-channel test system of the present application switches the test channels by the channel switching board, and can test the products to be tested in the two test channels in turn, and perform different test tasks in the two test channels in turn, which not only improves the test efficiency and saves the test cost, but also improves the flexibility of the test.

[0062] The present application also provides a non-volatile computer-readable storage medium, wherein the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are executed by one or more processors, for example, to execute the above-described Figure 7 method steps.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Under the concept of the present application, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes in different aspects of the present application as described above, which are not provided in detail for the sake of simplicity. Although the present application has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A dual-channel test system, characterized in that: It includes a channel switching board, a first test instrument and a second test instrument. The channel switching board includes a control module and a switching relay. The first test instrument is connected to a first product to be tested through a first line of the switching relay to form a first test channel. The second test instrument is connected to a second product to be tested through a second line of the switching relay to form a second test channel. The control module is used to control the switching relay to turn on one of the first test channel or the second test channel.

2. The system according to claim 1, characterized in that The system also includes a first signal switch and a second signal switch. When the first product to be tested is connected to the control module through the first signal switch, the first signal switch is closed, and the control module receives a first material detection signal. When the second product to be tested is connected to the control module through the second signal switch, the second signal switch is closed, and the control module receives a second material detection signal.

3. The system according to claim 2, characterized in that The control module includes a first signal input terminal, a second signal input terminal and a positive power input terminal, the first signal input terminal and the second signal input terminal are respectively connected to the positive power input terminal, the first product to be tested is connected to the control module through the first signal switch specifically: the negative power input terminal of the first product to be tested is connected to the first signal input terminal through the first signal switch, and the second product to be tested is connected to the control module through the second signal switch specifically: the negative power input terminal of the second product to be tested is connected to the second signal input terminal through the second signal switch.

4. The system according to any one of claims 1 to 3, characterized in that: The system also includes a first fixture, a second fixture, a third signal switch and a fourth signal switch. The first fixture and the second fixture respectively include a cylinder and a solenoid valve. When the cylinder of the first fixture is connected to the control module through the third signal switch, the third signal switch is closed, and the control module receives a first cylinder detection signal. When the cylinder of the second fixture is connected to the control module through the fourth signal switch, the fourth signal switch is closed, and the control module receives a second cylinder detection signal.

5. The system according to claim 4, characterized in that When the control module receives the first material detection signal and the first cylinder detection signal, it controls the solenoid valve of the first fixture to open to fix the first product to be tested. When the control module receives the second material detection signal and the second cylinder detection signal, it controls the solenoid valve of the second fixture to open to fix the second product to be tested.

6. The system according to claim 5, characterized in that The system also includes a host computer, which is respectively communicatively connected with the first test instrument, the second test instrument, the channel switching board, the first product to be tested, and the second product to be tested. The host computer is used to obtain a selected test channel, and send a channel control instruction to the channel switching board according to the selected test channel to make the selected test channel conductive, control the product to be tested connected to the selected test channel to execute a test process, and obtain a test result from the test instrument connected to the selected test channel.

7. A dual-channel testing method, characterized in that: The method is applied to the dual-channel test system according to any one of claims 1 to 6, and the method comprises: Get the selected test channel; Sending a channel control instruction to the channel switching board according to the selected test channel to make the selected test channel conductive; Controlling the product to be tested connected to the selected test channel to execute a test process; The test result is obtained from the test instrument connected to the selected test channel.

8. The method according to claim 7, characterized in that After the step of controlling the product to be tested connected to the selected test channel to execute the test process, the following step further includes: After the product to be tested is tested, a channel control instruction is sent to the channel switching board to enable another test channel to be turned on; Control another product to be tested connected to the another test channel to execute a test process; The test result is obtained from the test instrument connected to the another test channel.

9. The method according to claim 7 or 8, characterized in that: The system includes two fixtures, the fixtures include a cylinder and a solenoid valve, and before the step of sending a channel control instruction to the channel switching board according to the selected test channel, the step also includes: It is detected whether the product to be tested and the cylinder are installed on the two fixtures. If it is detected that the product to be tested and the cylinder are installed on the fixture, a solenoid valve opening instruction is sent to open the solenoid valve on the fixture to fix the product to be tested.

10. A computer storage medium, characterized in that: The computer storage medium stores instructions or programs, and when the instructions or programs are executed by at least one processor, the at least one processor executes the dual-channel testing method according to any one of claims 7 to 9.

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