Connection devices, systems and methods for automated testing equipment

Abstract

This invention discloses a connection device, system, and method for an automatic testing equipment. The automatic testing equipment's channel signal terminals are configured into multiple modules, with the same number and identical signal connection points in each module. The drive module of the connection device drives a signal transfer module to move according to drive control commands. The arrangement of the multiple contacts in the signal transfer module is the same as the arrangement of the signal connection points in the module. When the signal transfer module moves to the corresponding position in the module, the contacts of the signal transfer module are electrically connected to the corresponding signal connection points of the module. A switching module connects at least a portion of the signal connection points in the module to external instruments through corresponding contacts according to switching control commands, forming a complete channel signal. This invention reduces design complexity, allows for the simultaneous connection of multiple channel signal terminals and external instruments, improves connection efficiency, and enhances the efficiency of testing, calibration, or diagnostic operations.

Description

Technical Field

[0001] The present invention relates to the field of integrated circuit testing technology, and in particular to a connection device, system and method for an automatic testing equipment. Background Technology

[0002] With the development of integrated circuit design and manufacturing technology, the application of automatic test equipment (ATE) for integrated circuits is becoming more and more widespread.

[0003] In existing technologies, integrated circuits require testing, calibration, or diagnostics at various stages from research and development to application. During these tests, calibrations, or diagnostics, the signals within the ATE (Automatic Test Equipment) need to be connected to external instruments.

[0004] However, in the existing technology, the method of connecting the signals inside the ATE to the external instruments has the problems of complex connection or low operation efficiency. Summary of the Invention

[0005] This invention provides a connection device, system, and method for an automated test equipment (ATE) to connect internal signals to external instruments, simplifying the connection process and improving the efficiency of testing, calibration, or diagnostic operations.

[0006] In a first aspect, embodiments of the present invention provide a connection device for an automatic testing equipment. The channel signal terminals of the automatic testing equipment are configured into multiple modules. Each module includes multiple signal connection points. Each signal connection point corresponds one-to-one with a channel signal terminal, and the signal on the corresponding channel signal terminal is the same. The number of signal connection points in the multiple modules is the same, and they have the same arrangement pattern.

[0007] The connection device of the automatic test equipment includes a drive module, a signal conversion module, and a switching module;

[0008] The drive module is used to receive drive control commands and drive the signal transfer module to move according to the received drive control commands;

[0009] The signal conversion module includes multiple contacts, and the arrangement of these contacts is the same as the arrangement of the channel signal terminals in the module. When the signal conversion module is configured to connect to any module, it is electrically connected to the signal connection points in the module one by one.

[0010] The switching module is electrically connected to each contact part to receive switching control commands and, according to the switching control commands, connect at least some of the signal connection points in the module to the corresponding peripheral instruments through the corresponding contact parts to form a complete channel signal.

[0011] Optionally, the channel signal terminals of the automatic test equipment are arranged in the form of multiple modules, with each channel signal terminal serving as a signal connection point.

[0012] Optionally, the connection device of the automatic test equipment also includes a circuit board, with the module mounted on the circuit board and the signal connection points electrically connected to the channel signal terminals one by one.

[0013] Optionally, multiple modules may be arranged in the same orientation on the circuit board.

[0014] Optionally, the drive module includes a motor, and a running bracket for the motor is fixed on the circuit board. The motor is used to drive the signal transfer module to move on the running bracket according to the drive control command.

[0015] Optionally, the switching module includes multiple first switching units, each first switching unit including a first end, at least one second end and at least one first switch, wherein one end of the first switch is electrically connected to the first end of the first switching unit, the other end of the first switch is electrically connected to the second end of the first switching unit in a one-to-one correspondence, the first end of the first switching unit is electrically connected to the contact portion in a one-to-one correspondence, and the second end of the first switching unit is used to connect to external instruments.

[0016] Optionally, in the switching module, each first switching unit includes the same number of first switches, and each first switching unit is connected to the same type of peripheral instrument.

[0017] Optionally, in the switching module, at least two first switching units may include different numbers of first switches, and / or at least two first switching units may be connected to peripheral instruments that are not exactly the same.

[0018] Optionally, the module includes a module to be tested, and the drive control command includes a drive detection command; the drive module is used to drive the signal transfer module to move to the module to be tested according to the received drive detection command, and connect to the module to be tested.

[0019] The switching control command includes a switching detection command. The switching module is used to close or disconnect the signal connection point of the module under test from the corresponding peripheral instrument according to the switching detection command. When the automatic test equipment outputs a signal through the channel signal terminal connected to the module under test, the measurement signal parameters of the peripheral instrument are used to determine whether the first switch is open or short-circuited.

[0020] Optionally, the switching module may also include at least one functional circuit, which may include at least one of a resistor, an operational amplifier, and a clock source.

[0021] The switching module also includes a second switching unit. Each second switching unit includes a first terminal, at least one second terminal, and at least one second switch. One end of the second switch is electrically connected to the first terminal of the second switching unit, and the other end of the second switch is electrically connected to the second terminal of the second switching unit in a one-to-one correspondence. The first terminal of the first switching unit is connected to one end of the functional circuit, and the other end of the functional circuit is electrically connected to the contact part in a one-to-one correspondence through a control switch. The second terminal of the second switching unit is used to connect to external instruments.

[0022] Optionally, the number of complete channels formed by the channel signal terminals corresponding to the signal connection points of at least two modules may be different.

[0023] Optionally, the signals at the signal connection points in at least one module include both digital and analog signals.

[0024] Secondly, embodiments of the present invention also provide a connection system for an automatic testing device, including a connection device for the automatic testing device of the first aspect. The connection system for the automatic testing device further includes a control module, which is electrically connected to a drive module, a switching module and peripheral instruments, and is used to issue drive control commands to the drive module and to issue switching control commands to the switching module.

[0025] Thirdly, the present invention also provides a connection method for an automatic testing device. The channel signal terminals of the automatic testing device are configured into multiple modules. Each module includes multiple signal connection points. Each signal connection point corresponds one-to-one with a channel signal terminal, and the signal on the signal connection point is the same as the signal on the corresponding channel signal terminal. The number of signal connection points in the multiple modules is the same, and the arrangement is the same.

[0026] The connection methods for automated testing equipment include:

[0027] Send drive control commands to the drive module so that the drive module can move the drive signal transfer module according to the received drive control commands;

[0028] The signal conversion module includes multiple contacts, and the arrangement of these contacts is the same as the arrangement of the channel signal terminals in the module. When the signal conversion module is configured to connect to any module, it is electrically connected to the signal connection points in the module one by one.

[0029] A switching control command is sent to the switching module so that, according to the switching control command, at least some of the signal connection points in the module are connected to the corresponding peripheral instruments through the corresponding contacts to form a complete channel signal.

[0030] Optionally, the switching module includes multiple first switching units, each first switching unit including a first end, at least one second end and at least one first switch, wherein one end of the first switch is electrically connected to the first end of the first switching unit, the other end of the first switch is electrically connected to the second end of the first switching unit in a one-to-one correspondence, the first end of the first switching unit is electrically connected to the contact portion in a one-to-one correspondence, and the second end of the first switching unit is used to connect to external instruments.

[0031] The module includes the module to be tested; the drive control instructions include drive detection instructions; the switching control instructions include switching detection instructions.

[0032] Sending drive control commands to the drive module so that the drive module moves the transfer module according to the received drive control commands, including:

[0033] Send a drive detection command to the drive module so that the drive module drives the signal transfer module to move to the module under test according to the received drive detection command and connects with the module under test;

[0034] A switching control command is issued to the switching module so that, according to the switching control command, at least some signal connection points in the module are connected to the corresponding peripheral instruments through corresponding contacts to form a complete channel signal, including:

[0035] A switching detection command is sent to the switching module so that the switching module closes or disconnects the signal connection point of the module under test from the corresponding peripheral instrument according to the switching detection command. When the automatic test equipment outputs a signal through the channel signal terminal connected to the module under test, the measurement signal parameters of the peripheral instrument are used to determine whether the first switch is open or short-circuited.

[0036] The connection device, system, and method of the automatic test equipment in this embodiment configure the channel signal terminals of the automatic test equipment into multiple modules. The signal connection points in these modules have the same arrangement and the same number. The connection device of the automatic test equipment includes a drive module, a signal conversion module, and a switching module. The drive module drives the signal conversion module to move according to drive control commands. The arrangement of the multiple contacts included in the signal conversion module is the same as the arrangement of the signal connection points in the module, so that when the signal conversion module moves to the corresponding position in the module, the contacts of the signal conversion module can be electrically connected to the signal connection points of the module one-to-one. The switching module is electrically connected to the contacts of the signal conversion module, and according to switching control commands, at least some of the signal connection points in the module can be connected to the corresponding peripheral instruments through the corresponding contacts to form a complete channel signal for subsequent calibration, testing, or diagnostic operations. The technical solution of this embodiment eliminates the need for a large switching matrix corresponding to each channel signal terminal as in the prior art, reducing design and connection complexity. Furthermore, the technical solution of this embodiment can control at least some of the contacts of the signal transfer module to connect with the peripheral instrument through the switching module, thereby controlling at least some of the channel signal terminals of the automatic test equipment to connect with the peripheral instrument, so that multiple channel signal terminals and peripheral instruments can be connected at the same time, improving the connection efficiency and thus improving the efficiency of testing, calibration or diagnosis operations. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the structure of a connection device for an automatic testing equipment provided in an embodiment of the present invention;

[0038] Figure 2 correspond Figure 1 A detailed structural diagram;

[0039] Figure 3 This is a schematic diagram of an automated test device whose channel signal terminals are configured into multiple modules.

[0040] Figure 4 This is a schematic diagram of another type of automated test equipment where the channel signal terminals are configured into multiple modules;

[0041] Figure 5 This is a schematic diagram showing the correspondence between the channel signal terminals and modules on the panel of the automatic testing equipment provided in this embodiment of the invention;

[0042] Figure 6 This is a schematic diagram of the signal switching module in an embodiment of the present invention;

[0043] Figure 7 This is a schematic diagram of the connection device of another automatic testing equipment provided in an embodiment of the present invention;

[0044] Figure 8 This is a schematic diagram of the structure of a switching module provided in an embodiment of the present invention;

[0045] Figure 9 This is a schematic diagram of another switching module provided in an embodiment of the present invention;

[0046] Figure 10 This is a schematic diagram of another switching module provided in an embodiment of the present invention;

[0047] Figure 11 This is a schematic diagram of another switching module provided in an embodiment of the present invention;

[0048] Figure 12 This is a flowchart of a connection method for an automatic testing device provided in an embodiment of the present invention;

[0049] Figure 13 This is a flowchart of another connection method for an automatic testing device provided in an embodiment of the present invention;

[0050] Figure 14 This is a flowchart of the connection system for open circuit detection of the automatic testing equipment provided in this embodiment of the invention;

[0051] Figure 15 This is a flowchart of the connection system for short-circuit detection of the automatic testing equipment provided in this embodiment of the invention. Detailed Implementation

[0052] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0053] As described in the background section, existing technologies for connecting signals within an Equipment Adapter (ATE) to external instruments suffer from problems such as complex connections and low operational efficiency. The inventors have discovered that these problems arise because existing technologies employ two methods for connecting signals within the ATE to external instruments. One method connects each signal point of the ATE to the external instrument via a switching matrix, resulting in a large switching matrix, complex connections between the ATE and external instruments, poor maintainability, and high upgrade and iteration costs. The other method uses a movable, positionable adapter module. Traversing all signal points of the ATE at once, moving and searching for the adapter module until it makes full contact with the signal point takes a long time, leading to low efficiency in testing, calibration, or diagnostic operations.

[0054] For the reasons stated above, embodiments of the present invention provide a connection device for an automatic testing equipment. Figure 1This is a schematic diagram of the connection device for an automatic testing equipment provided in an embodiment of the present invention. Figure 2 correspond Figure 1 A detailed structural diagram, Figure 3 This is a schematic diagram of an automated test device whose channel signal terminals are configured into multiple modules. (See reference) Figures 1-3 The channel signal terminals of the automatic test equipment are configured into multiple modules 10. Each module 10 includes multiple signal connection points 11. Each signal connection point 11 corresponds to a channel signal terminal, and the signal on the corresponding channel signal terminal is the same. The number of signal connection points 11 in the multiple modules 10 is the same, and they have the same arrangement pattern.

[0055] The signal connection point 11 of module 10 can be a conductive structure such as a pad or a pin. The channel signal terminal can also be a conductive structure such as a pad or a pin.

[0056] refer to Figure 1 The connection device 100 of the automatic testing equipment includes a drive module 110, a signal conversion module 120, and a switching module 130. The drive module 110 is used to receive drive control commands and drive the signal conversion module 120 to move according to the received drive control commands. The signal conversion module 120 includes multiple contacts 121, and the arrangement of the multiple contacts 121 is the same as the arrangement of the channel signal terminals in the module 10. When the signal conversion module 120 is configured to connect to any module 10, it is electrically connected to the signal connection points 11 in the module 10 one by one. The switching module 130 is electrically connected to each contact 121, and is used to receive switching control commands and, according to the switching control commands, connect at least some of the signal connection points 11 in the module 10 to the corresponding peripheral instruments 200 through the corresponding contacts 121 to form a complete channel signal.

[0057] like Figure 3 In multiple modules 10, the number of signal connection points 11 is the same, and they have the same arrangement pattern. This means that the number of rows and columns of signal connection points 11 in module 10 is the same, and the spacing between two adjacent signal connection points 11 in the row direction is consistent, as is the spacing between two adjacent signal connection points 11 in the column direction. Figure 3 The diagram schematically illustrates a module 10 comprising two rows (referred to as the first row and the second row) and five columns (referred to as columns A, B, C, D, and E) of signal connection points 11. However, the row directions of different modules 10 can be the same or different; the column directions of different modules 10 can also be the same or different. That is, any module 10 can be obtained by translating or rotating other modules 10 by a certain angle. Figure 4 This is a schematic diagram of another type of automated test equipment where the channel signal terminals are configured into multiple modules, such as... Figure 4As shown, some of the modules 10 have different arrangement directions, and correspondingly, the row direction and column direction of the modules are different. Figure 4 The diagram schematically illustrates the situation where the two modules 10 in the middle left region can be obtained by rotating the module 10 in the upper left corner 90 degrees counterclockwise, and the situation where the two modules 10 in the middle right region can be obtained by rotating the module 10 in the upper right corner 90 degrees clockwise.

[0058] The configuration of the channel signal terminals of the automatic test equipment into multiple modules 10 can include various methods. In some optional embodiments, the channel signal terminals of the automatic test equipment are arranged in the form of multiple modules 10, with each channel signal terminal serving as a signal connection point 11. In this case, Figure 3 and Figure 4 The structure shown corresponds to the panel of an automatic test equipment. That is, on the panel of the automatic test equipment, the channel signal terminals are arranged in the form of multiple modules 10.

[0059] In another optional embodiment of the present invention, the connection device of the automatic testing equipment further includes a circuit board, with the module 10 disposed on the circuit board and the signal connection point 11 electrically connected to the channel signal terminal in a one-to-one correspondence.

[0060] In this case, the channel signal terminals of the automatic test equipment can be arranged in the form of multiple modules 10 (e.g., Figure 3 or Figure 4 As shown, the channel signal terminals of the automatic test equipment can also be arranged irregularly. Figure 5 This is a schematic diagram showing the correspondence between the channel signal terminals and modules on the panel of the automatic testing equipment provided in this embodiment of the invention, as shown below. Figure 5 As shown, the channel signal terminals 12 of the automatic test equipment can themselves be at least partially arranged randomly (e.g., for...). Figure 5 The channel signal terminals 12 in the area outlined by the dashed line are arranged irregularly. This can be addressed by... Figure 5 The channel signal terminal 12 of the automatic test equipment shown is connected to the circuit board, so that it is arranged in the same way as the module 10 on the circuit board. Each module 10 has the same number of signal connection points 11. The signal connection points 11 on the circuit board are arranged in multiple modules 10. The signal connection points 11 on the circuit board and the channel signal terminal 12 of the automatic test equipment can be electrically connected one-to-one by conductive wires, so that the channel signal terminal 12 of the automatic test equipment can be configured into multiple modules 10.

[0061] It should be noted that, for Figure 5 In the schematic diagram showing the correspondence between channel signal terminals and modules on the panel of the automatic testing equipment, the connection relationship between channel signal terminals 12 and signal connection points 11 that completely correspond to the arrangement of signal connection points 11 in module 10 is illustrated. Figure 5 Not shown in the diagram. The channel signal terminals 12, which correspond exactly to the arrangement of signal connection points 11 in module 10, are also electrically connected to signal connection points 11 in a one-to-one correspondence.

[0062] Optionally, multiple modules 10 are arranged in the same orientation on the circuit board; correspondingly, the signal connection points 11 in each module 10 are arranged in the same row direction and column direction. This arrangement allows the drive module 110 to move the signal transfer module 120 from one module 10 to another without needing to rotate the signal transfer module 120, and can directly perform translation, making it easier to control the drive module 110.

[0063] In this embodiment, the drive module 110 can receive drive control commands and drive the signal transfer module 120 to move according to the received drive control commands. The drive control commands can be issued by the control module 300 connected to the connection device of the automatic testing equipment. The control module 300 can be a microcontroller, a host computer, etc. The drive control commands can contain information that the drive module 110 can recognize, allowing the drive module 110 to drive the signal transfer module 120 to move in multiple directions according to the drive control commands, so that the signal transfer module 120 can move to the position of module 10. For example, the drive control commands can include information to move the signal transfer module 120 to the target module 10, where the target module 10 can be one of multiple modules 10, and the drive module 110 drives the signal transfer module 120 to the position corresponding to the target module 10 according to the drive control commands.

[0064] Figure 6 This is a schematic diagram of the signal switching module in an embodiment of the present invention, for reference. Figure 6 The signal conversion module 120 includes multiple contacts 121, wherein the contacts 121 are conductive, and the contacts 121 can be... Figure 6The probe configuration is shown. The arrangement of the multiple contacts 121 is the same as the arrangement of the channel signal terminals in module 10. Specifically, the number of contacts 121 in signal adapter module 120 can be the same as the number of signal connection points 11 in module 10, and the number of rows and columns of contacts 121 in signal adapter module 120 is equal to the number of rows and columns of signal connection points 11 in module 10, respectively. When signal adapter module 120 is configured to connect to any module 10, it is electrically connected to the signal connection points 11 in module 10 in a one-to-one correspondence. To ensure that the contact portion 121 in the signal connection module and the signal connection point 11 in the module 10 can achieve a one-to-one electrical connection, the spacing between adjacent contact portions 121 in the row direction of the contact portion 121 is equal to the spacing between adjacent signal connection points 11 in the row direction of the signal connection points 11 in the module 10, and the spacing between adjacent contact portions 121 in the column direction of the contact portion 121 is equal to the spacing between adjacent signal connection points 11 in the column direction of the signal connection points 11 in the module 10.

[0065] The connection device of the automatic testing equipment also includes a switching module 130. The switching module 130 is electrically connected to each contact part 121. The switching module 130 can receive switching control commands from the control module 300 and, according to the switching control commands, connect at least some of the signal connection points 11 in the module 10 to the corresponding peripheral instruments 200 through the corresponding contact parts 121 to form a complete channel signal. The switching module 130 may include a peripheral instrument interface, and the switching module 130 connects to the corresponding peripheral instruments through the peripheral instrument interface. Depending on the form of the peripheral instrument interface, the interface form of the peripheral instrument interface of the switching module 130 can also be various. Among them, the control module 300 can select a complete channel signal from the channel signal terminals connected to the signal connection points 11 of the module 10, and connect the signal connection points 11 corresponding to the complete channel signal to the corresponding peripheral instrument 200 through the control of the switching module 130 to form a complete channel signal. Then, it can perform calibration, testing, or diagnostic operations on the channel signal terminals of the module 10 connected to the signal transfer module 120.

[0066] The connection device of the automatic test equipment in this embodiment configures the channel signal terminals of the automatic test equipment into multiple modules. The signal connection points in these modules have the same arrangement and the same number. The connection device includes a drive module, a signal conversion module, and a switching module. The drive module drives the signal conversion module to move according to drive control commands. The arrangement of the multiple contacts in the signal conversion module is the same as the arrangement of the signal connection points in the module, so that when the signal conversion module moves to the corresponding position in the module, the contacts of the signal conversion module can be electrically connected to the signal connection points of the module one-to-one. The switching module is electrically connected to the contacts of the signal conversion module. According to the switching control commands, at least some of the signal connection points in the module can be connected to the corresponding peripheral instruments through the corresponding contacts to form a complete channel signal for subsequent calibration, testing, or diagnostic operations. The technical solution of this embodiment eliminates the need for a large switching matrix corresponding to each channel signal terminal as in the prior art, reducing design and connection complexity. Furthermore, the technical solution of this embodiment can control at least some of the contacts of the signal transfer module to connect with the peripheral instrument through the switching module, thereby controlling at least some of the channel signal terminals of the automatic test equipment to connect with the peripheral instrument, so that multiple channel signal terminals and peripheral instruments can be connected at the same time, improving the connection efficiency and thus improving the efficiency of testing, calibration or diagnosis operations.

[0067] Figure 7 This is a schematic diagram of the connection device of another automatic testing equipment provided in an embodiment of the present invention, for reference. Figure 7 The connection device of the automatic testing equipment includes a circuit board 140, and a switching module 130 is disposed on the surface of the circuit board 140 and near one edge of the circuit board 140; the module 10 and the switching module 130 are disposed on the same surface of the circuit board 140 and on the same side of the switching module 130.

[0068] Specifically, the switching module 130 is positioned near the edge of the circuit board 140 to facilitate connection between the switching module 130 and the peripheral instrument 200. The module 10 is positioned on the same side of the switching module 130 to facilitate the drive module 110 in moving the signal transfer module 120 from one module 10 to another, avoiding any impact on the movement path of the drive module 110 due to the placement of the switching module 130. In other optional embodiments of the present invention, the switching module 130 can also be mounted on the machine base of an automatic testing equipment. The specific location of the switching module 130 is not specifically limited in this embodiment.

[0069] Continue to refer to Figure 7Optionally, the drive module 110 includes a motor, and a motor running bracket 150 is fixed on the circuit board 140. The motor is used to drive the signal transfer module 120 to move on the running bracket 150 according to the drive control command.

[0070] The drive module 110 may include at least one motor to drive the signal transfer module 120 to move in multiple directions. A motor running bracket 150 is fixed to the circuit board 140. The motor and the signal transfer module 120 may be mechanically connected. The motor can drive the signal transfer module 120 to move on the running bracket 150 according to drive control commands. The connection between the contact portion 121 of the signal transfer module 120 and the switching module 130 can be achieved via a cable. This cable includes wires that are electrically connected to the contact portions 121 one-to-one, and the wires are insulated from each other.

[0071] Figure 8 This is a schematic diagram of the structure of a switching module provided in an embodiment of the present invention, for reference. Figure 8 Optionally, the switching module 130 includes a plurality of first switching units 131. Each first switching unit 131 includes a first end, at least one second end, and at least one first switch 1311. One end of the first switch 1311 is electrically connected to the first end of the first switching unit 131, and the other end of the first switch 1311 is electrically connected to the second end of the first switching unit 131 in a one-to-one correspondence. The first end of the first switching unit 131 is electrically connected to the contact portion 121 in a one-to-one correspondence. The second end of the first switching unit 131 is used to connect to external instruments.

[0072] Specifically, the contacts of the first switching unit 131 and the signal conversion module 120 are configured in a one-to-one correspondence. The first end of the first switching unit 131 is electrically connected to the corresponding contact. The second end of the first switching unit 131 can be connected to an external instrument. Different second ends of the first switching unit 131 can be connected to different external instruments, or to different interfaces of the same external instrument. For example, the external instrument may include a digital multimeter, an oscilloscope (OSC), a frequency counter (Timer), and a signal generator (AFG). In some optional embodiments, the external instrument also includes a ground terminal (GND). Figure 8The diagram schematically illustrates the following connections: signal connection point A1 in the first row and first column of the module is connected to contact a10; signal connection point A2 in the second row and first column of the module is connected to contact a20; signal connection point B1 in the first row and second column of the module is connected to contact b10; signal connection point B2 in the second row and second column of the module is connected to contact b20; signal connection point C1 in the first row and third column of the module is connected to contact c10; signal connection point C2 in the second row and third column of the module is connected to contact c20; signal connection point D1 in the first row and fourth column of the module is connected to contact d10; signal connection point D2 in the second row and fourth column of the module is connected to contact d20; signal connection point E1 in the first row and fifth column of the module is connected to contact e10; signal connection point E2 in the second row and fifth column of the module is connected to contact e20.

[0073] The peripheral instrument includes a first switching unit 131 comprising a first terminal and at least one second terminal, and correspondingly, the first switching unit 131 is connected to at least one peripheral instrument. The first switching unit 131 includes at least one first switch 1311, which can be implemented using a relay structure, and each first switch 1311 may include a relay. The control module 300, connected to the connection device of the automatic testing equipment, can control the connection between the contacts connected to the first switching unit 131 and the specific peripheral instrument by controlling the on / off state of each first switch 1311 in the first switching unit 131.

[0074] The design of the switching module 130 in this embodiment needs to be universal. Obviously, the output channel signal definitions differ depending on the resource boards of the ATE. Therefore, even after the module 10 is divided, the signal definitions at the same coordinate positions between the divided modules 10 will be different due to the differences in the type and number of resource boards configured in the ATE. To solve this problem, in some optional embodiments of the present invention, in the switching module 130, each first switching unit 131 includes the same number of first switches 1311, and the peripheral instruments connected to each first switching unit 131 are of the same type.

[0075] Specifically, when the number of first switches 1311 included in each first switch unit 131 is the same, and the types of peripheral instruments connected to each first switch unit 131 are the same, each first switch unit 131 can be connected to all possible peripheral instruments. This structural design of the switching module 130 is the most versatile, allowing the signal connection point 11 of any coordinate point in the divided module 10 to be switched to any peripheral instrument. That is, the structural design of this switching module 130 can meet the needs of configuring any type of resource board in the ATE equipment. Figure 8The diagram schematically illustrates all possible peripheral instruments that may be used, including digital multimeters, oscilloscopes (OSC), frequency counters (Timers), signal generators (AFG), and ground (GND).

[0076] Figure 9 This is a schematic diagram of another switching module provided in an embodiment of the present invention, for reference. Figure 9 In another optional embodiment of the present invention, in the switching module 130, the number of first switches 1311 included in at least two first switching units 131 is different, and / or the peripheral instruments connected to at least two first switching units 131 are not completely the same.

[0077] Specifically, the structure of the aforementioned switching module 130 can be designed based on the types of resource boards configured in the ATE equipment. First, the types of resource boards configured in the ATE equipment are determined. Then, based on all peripheral instruments in the module 10 corresponding to each type of resource board that may correspond to the same contact in the signal transfer module 120, that contact is connected to all the identified potentially connected peripheral instruments via the first switching unit 131. In this case, at least some of the contact 121 may be connected to a relatively small number of peripheral instruments via the first switching unit 131. Correspondingly, the number of first switches 1311 in at least some of the first switching units 131 is reduced, thus reducing resource waste. For example, if the ATE has three types of resource boards, and the signal definitions of the three resource boards on the divided module 10 are as follows... Figure 9 As shown. Taking module 10, which includes two rows (referred to as the first row and the second row) and five columns (referred to as columns A, B, C, D, and E) of signal connection points, for module 10 corresponding to resource board 1, the signal FH0 on the signal connection point (referred to as A1) in the first row and first column needs to be connected to the high-level terminal DMM_Hi of an external digital multimeter; for module 10 corresponding to resource board 2, the signal CH0+ on A1 needs to be connected to the high-level terminal DMM_Hi of an external digital multimeter; for module 10 corresponding to resource board 3, the signal P_0 on A1 needs to be connected to the high-level terminal DMM_Hi of an external digital multimeter, an oscilloscope OSC, a frequency counter Timer, and a signal generator AFG. Therefore, the contact a10 in signal conversion module 120 corresponding to A1 in module 10 can be connected to the high-level terminal DMM_Hi of a digital multimeter, an oscilloscope OSC, a frequency counter Timer, and a signal generator AFG through four first switches 1311, respectively.

[0078] For module 10 corresponding to resource board 1, signal FH1 at signal connection point A2 in the second row and first column needs to be connected to the high-level terminal DMM_Hi of an external digital multimeter; signal SH0 at signal connection point B1 in the first row and second column needs to be connected to the high-level terminal DMM_Hi of an external digital multimeter; signal SH1 at signal connection point B2 in the second row and second column needs to be connected to the high-level terminal DMM_Hi of an external digital multimeter; signal FL0 at signal connection point C1 in the first row and third column and signal FL1 at signal connection point C2 in the second row and third column need to be connected to the low-level terminal DMM_LO of an external digital multimeter; and signal SL0 at signal connection point D1 in the first row and fourth column and signal SL1 at signal connection point D2 in the second row and fourth column need to be connected to the low-level terminal DMM_LO of an external digital multimeter.

[0079] For module 10 corresponding to resource board 2, the signal CH0- on A2 needs to be connected to the low-level terminal DMM_LO of an external digital multimeter.

[0080] For module 10 corresponding to resource board 3, the signal GND on A2, B1, B2, D1, D2, and E1 (signal connection point in the first row and fifth column) all need to be connected to the ground terminal GND. The signal P_1 on E2 (signal connection point in the second row and fifth column) needs to be connected to the high-level terminal DMM_Hi of an external digital multimeter, the OSC of an oscilloscope, the Timer of a frequency counter, and the AFG of a signal generator.

[0081] Therefore, the contact a20 in the signal conversion module 120 corresponding to A2 in module 10 can be connected to the high-level terminal DMM_Hi, the low-level terminal DMM_LO, and the ground terminal GND of the digital multimeter via three first switches 1311, respectively. The contact b10 in the signal conversion module 120 corresponding to B1 in module 10 can be connected to the high-level terminal DMM_Hi and the ground terminal GND of the digital multimeter via two first switches 1311, respectively. The contact b20 in the signal conversion module 120 corresponding to B2 in module 10 can be connected to the high-level terminal DMM_Hi and the ground terminal GND of the digital multimeter via two first switches 1311, respectively. The contact c10 in the signal conversion module 120 corresponding to C1 in module 10 can be connected to the low-level terminal DMM_LO of the digital multimeter via one first switch 1311. In signal conversion module 120, contact c20 corresponding to C2 in module 10 can be connected to the low-level terminal DMM_LO of the digital multimeter via a first switch 1311. Contact d10 in signal conversion module 120 corresponding to D1 in module 10 can be connected to the low-level terminal DMM_LO and the ground terminal GND of the digital multimeter via two first switches 1311, respectively. Contact d20 in signal conversion module 120 corresponding to D2 in module 10 can be connected to the low-level terminal DMM_LO and the ground terminal GND of the digital multimeter via two first switches 1311, respectively. Contact e10 in signal conversion module 120 corresponding to E1 in module 10 can be connected to the ground terminal GND via a first switch 1311. The contact e10 in the signal conversion module 120 corresponding to E1 in module 10 can be connected to the high-level terminal DMM_Hi of a digital multimeter, the OSC of an oscilloscope, the Timer of a frequency counter, and the AFG of a signal generator via four first switches 1311.

[0082] Figure 10 This is a schematic diagram of another switching module provided in an embodiment of the present invention, for reference. Figure 10 Optionally, the number of complete channels formed by the channel signal terminals corresponding to the signal connection points of at least two modules 10 may be different.

[0083] Specifically, due to differences in current capability, the number of complete channels on the module 10 connected to different resource boards varies. The higher the current capability of a resource board, the fewer the corresponding number of complete channels.

[0084] refer to Figure 10 Taking the ATE equipment as an example, which includes two types of resource boards, the signal definitions of the two resource boards (referred to as resource board 4 and resource board 5 respectively) on the segmented module 10 are as follows: Figure 10As shown. Taking module 10, which includes two rows (referred to as the first row and the second row) and five columns (referred to as columns A, B, C, D, and E) of signal connection points, for module 10 corresponding to resource board 4, each signal FH0, SH0, FL0, SL0, and GND in the first row corresponds to one complete channel, and each signal FH1, SH1, FL1, SL1, and GND in the second row corresponds to another complete channel. That is, the number of complete channels formed by the signal connection points of module 10 corresponding to the channel signal terminals of resource board 4 in the ATE equipment is two. For module 10 corresponding to resource board 5, each signal FH0, SH0, FL0, SL0, and GND in the first row corresponds to one complete channel, and each signal FH0, SH0, FL0, SL0, and GND in the second row is the same as the complete channel corresponding to the first row. That is, the number of complete channels formed by the signal connection points of module 10 corresponding to the channel signal terminals of resource board 5 in the ATE equipment is one. Correspondingly, the current capability of resource board 5 is greater than that of resource board 4.

[0085] For signals FH0, SH0, FL0, SL0, GND, and signals FH1, SH1, FL1, SL1, GND, the peripheral instruments that need to be connected are... Figure 9The peripheral instruments required to connect to the signals corresponding to the resource boards are the same, and will not be described again here. Based on this, the contact a10 in the signal conversion module 120 corresponding to A1 in module 10 can be connected to the high-level terminal DMM_Hi of the digital multimeter via a first switch 1311; the contact a20 in the signal conversion module 120 corresponding to A2 in module 10 can be connected to the high-level terminal DMM_Hi of the digital multimeter via a first switch 1311; the contact b10 in the signal conversion module 120 corresponding to B1 in module 10 can be connected to the high-level terminal DMM_Hi of the digital multimeter via a first switch 1311; the contact b20 in the signal conversion module 120 corresponding to B2 in module 10 can be connected to the high-level terminal DMM_Hi of the digital multimeter via a first switch 1311; the contact c10 in the signal conversion module 120 corresponding to C1 in module 10 can be connected to the high-level terminal DMM_Hi of the digital multimeter via a first switch 1311. The low-level terminal DMM_LO of the meter; the contact c20 in the signal conversion module 120 corresponding to C2 in module 10 can be connected to the low-level terminal DMM_LO of the digital multimeter through a first switch 1311; the contact d10 in the signal conversion module 120 corresponding to D1 in module 10 can be connected to the low-level terminal DMM_LO of the digital multimeter through a first switch 1311; the contact d20 in the signal conversion module 120 corresponding to D2 in module 10 can be connected to the low-level terminal DMM_LO of the digital multimeter through a first switch 1311; the contact e10 in the signal conversion module 120 corresponding to E1 in module 10 can be connected to the ground terminal GND through a first switch 1311; the contact e20 in the signal conversion module 120 corresponding to E2 in module 10 can be connected to the ground terminal GND through a first switch 1311.

[0086] Based on the above technical solution, optionally, the signals at the signal connection points in at least one module 10 include digital signals and analog signals.

[0087] by Figure 9 Taking the illustrated example, in the modules 10 connected to resource board 1 and resource board 2, the signals at the signal connection points only include digital signals. In the module 10 connected to resource board 3, the signals at the signal connection points include both digital and analog signals. The connection device of the automatic test equipment in this embodiment can simultaneously connect digital and analog signals to the functional hardware required for connecting peripheral instruments, facilitating subsequent calibration, testing, or diagnostic operations.

[0088] Based on the above technical solution, optionally, module 10 includes a module to be tested, and the drive control command includes a drive detection command; the drive module is used to drive the signal transfer module 120 to move to the module to be tested according to the received drive detection command, and connect to the module to be tested.

[0089] The switching control command includes a switching detection command. The switching module 130 is used to close or disconnect the signal connection point of the module under test from the corresponding peripheral instrument according to the switching detection command, so that when the automatic test equipment outputs a signal through the channel signal terminal connected to the module under test, the measurement signal parameters of the peripheral instrument can be used to determine whether the first switch 1311 is open or short-circuited.

[0090] Any module can be used as the module to be tested. In this embodiment, the driving module can drive the signal transfer module 120 to move to the module to be tested according to the received driving detection command, and connect to the module to be tested. That is, the signal transfer module 120 and the signal connection point of the module to be tested are electrically connected one-to-one. During open circuit detection, the switching module 130 closes the connection between the signal connection point of the module to be tested and the corresponding peripheral instrument according to the switching detection command. When the automatic test equipment outputs a signal through the channel signal terminal connected to the module to be tested, the measurement signal parameters of the peripheral instrument are used to determine whether the first switch 1311 is open. For example, for any first switch 1311, if the first switch 1311 is not open, the measurement signal of the peripheral instrument should be the first theoretical value. The actual measurement signal parameters of the peripheral instrument are used as the first measured value. When the absolute value of the difference between the first measured value and the first theoretical value is greater than the first set threshold, it can be determined that the first switch 1311 is open. During short-circuit detection, the switching module 130 connects the signal connection point of the module under test to the corresponding peripheral instrument according to the switching detection command port. When the automatic testing equipment outputs a signal through the channel signal terminal connected to the module under test, the module determines whether the first switch 1311 is short-circuited based on the measured signal parameters of the peripheral instrument. For example, for any first switch 1311, if there is no short circuit, the measured signal of the peripheral instrument should be the second theoretical value. The actual measured signal parameters of the peripheral instrument are used as the second measured value. When the absolute value of the difference between the second measured value and the second theoretical value is greater than a second set threshold, it can be determined that the first switch 1311 is short-circuited.

[0091] The connection device of the automatic test equipment in this embodiment has open-circuit self-test and short-circuit self-test functions, which improves the connection reliability of the connection device of the automatic test equipment.

[0092] Figure 11 This is a schematic diagram of another switching module provided in an embodiment of the present invention, for reference. Figure 11Optionally, the switching module 130 further includes at least one functional circuit 132, which includes at least one of a resistor 1323, an operational amplifier 1322, and a clock source 1321. The switching module 130 also includes a second switching unit 133, each of which includes a first terminal, at least one second terminal, and at least one second switch 1331. One end of the second switch 1331 is electrically connected to the first terminal of the second switching unit 133, and the other end of the second switch 1331 is electrically connected to the second terminal of the second switching unit 133 in a one-to-one correspondence. The first terminal of the first switching unit 131 is connected to one end of the functional circuit 132, and the other end of the functional circuit 132 is electrically connected to the contact portion 121 in a one-to-one correspondence through a control switch K0. The second terminal of the second switching unit 133 is used to connect to an external instrument.

[0093] Specifically, the switching module 130 includes at least one functional circuit 132, enabling the connection device of the automated test equipment to meet the specific calibration requirements of different ATE channels. For example, in some scenarios, a clock source 1321 may be used; in this case, the functional circuit 132 of the switching module 130 may include the clock source 1321. One end of the clock source 1321 is connected to the contact of the signal conversion module 120 via a control switch, and the other end can be connected to the corresponding peripheral instrument via a second switch unit 133. In other scenarios, operational amplifiers 1322 or resistors 1323 may be used; in this case, operational amplifiers 1322 or resistors 1323 can be connected to the corresponding contacts via control switches, and the operational amplifiers 1322 or resistors 1323 can be connected to the corresponding peripheral instruments via the second switch unit 133. Figure 11 The diagram schematically illustrates the connection between the three contacts a0, b0, and c0 and the external instruments via the first switching unit 131.

[0094] This invention also provides a connection system for an automatic testing device, the structural schematic of which can be found in the following embodiment: Figure 1The connection system of the automatic testing equipment includes the connection device 100 of the automatic testing equipment according to any of the above embodiments of the present invention. The connection system of the automatic testing equipment also includes a control module 300 and may further include peripheral instruments 200. The control module 300 is electrically connected to the drive module 120, the switching module 130 and the peripheral instruments 200 respectively, and is used to issue drive control commands to the drive module 110 and to issue switching control commands to the switching module 130. After receiving the drive control command, the drive module 110 can drive the signal transfer module 120 to move according to the received drive control command; after receiving the switching control command, the switching module 130 can connect at least some of the signal connection points in the module 10 to the corresponding peripheral instruments 200 through the corresponding contact parts according to the switching control command to form a complete channel signal.

[0095] The connection system of the automatic testing equipment in this embodiment includes the connection device of the automatic testing equipment in any of the above embodiments of the present invention, and has the beneficial effects of the connection device of the automatic testing equipment in any of the above embodiments of the present invention.

[0096] This invention also provides a method for connecting an automatic testing device. Figure 12 This is a flowchart of a connection method for an automatic testing device provided in an embodiment of the present invention, referred to as... Figure 12 The connection method for this automated testing equipment includes:

[0097] Step 210: Send a drive control command to the drive module so that the drive module drives the signal transfer module to move according to the received drive control command; the signal transfer module includes multiple contacts, and the arrangement of the multiple contacts is the same as the arrangement of the channel signal terminals in the module; when the signal transfer module is configured to connect to any module, it is electrically connected to the signal connection points in the module one by one.

[0098] Step 220: Send a switching control command to the switching module so that, according to the switching control command, at least some of the signal connection points in the module are connected to the corresponding peripheral instruments through the corresponding contacts to form a complete channel signal.

[0099] The connection method of this automatic testing equipment can be applied to the connection system of the automatic testing equipment in the above embodiments of the present invention, and has the corresponding beneficial effects of the connection system of the automatic testing equipment in the above embodiments of the present invention.

[0100] Continue to refer to Figures 8-11Optionally, the switching module 130 includes a plurality of first switching units 131, each first switching unit 131 including a first end, at least one second end, and at least one first switch 1311, wherein one end of the first switch 1311 is electrically connected to the first end of the first switching unit 131, the other end of the first switch 1311 is electrically connected to the second end of the first switching unit 131 in a one-to-one correspondence, the first end of the first switching unit 131 is electrically connected to the contact portion in a one-to-one correspondence, and the second end of the first switching unit 131 is used to connect to peripheral instruments; the module 10 includes a module 10 to be tested, the drive control command includes a drive detection command, and the switching control command includes a switching detection command.

[0101] Figure 13 This is a flowchart of another connection method for an automatic testing device provided in an embodiment of the present invention, see reference. Figure 13 The connection method for this automated testing equipment includes:

[0102] Step 310: Send a drive detection command to the drive module so that the drive module drives the signal transfer module to move to the module under test according to the received drive detection command and connects with the module under test.

[0103] Specifically, when the signal conversion module is connected to the module under test, the contact part of the signal conversion module is electrically connected to the signal connection point of the module under test in a one-to-one correspondence.

[0104] Step 320: Send a switching detection command to the switching module so that the switching module closes or disconnects the signal connection point of the module under test from the corresponding peripheral instrument according to the switching detection command, so that when the automatic test equipment outputs a signal through the channel signal terminal connected to the module under test, the measurement signal parameters of the peripheral instrument can be used to determine whether the first switch is open or short-circuited.

[0105] Specifically, the control module can control the status of peripheral instruments, enabling the peripheral instruments to output measurement signal parameters to the control module. The control module then determines whether the first switch is open or short-circuited based on the measurement signal parameters of the peripheral instruments.

[0106] Figure 14 This is a flowchart illustrating the open-circuit detection process of the connection system of the automatic testing equipment provided in this embodiment of the invention. (Reference) Figure 14 The open-circuit testing process includes:

[0107] Step 410: Send a drive detection command to the drive module so that the drive module drives the signal transfer module to move to the module under test according to the received drive detection command and connects with the module under test.

[0108] Step 420: Send a first switching detection command to the switching module so that the switching module disconnects the signal connection point of the module under test from the corresponding peripheral instrument according to the first switching detection command.

[0109] Step 430: Control the ATE setting channel to output the setting signal at the channel signal terminal.

[0110] Step 440: Control the peripheral instruments to measure and output signal parameters.

[0111] Step 450: Determine whether an open circuit exists based on the first theoretical value and the first measured value.

[0112] For example, for any first switch, if the first switch is not open-circuited, the measurement signal of the peripheral instrument should be the first theoretical value. The actual measurement signal parameter of the peripheral instrument is taken as the first measured value. When the absolute value of the difference between the first measured value and the first theoretical value is greater than a first set threshold, it can be determined that the first switch is open-circuited.

[0113] Figure 15 This is a flowchart illustrating the short-circuit detection process of the connection system of the automatic testing equipment provided in this embodiment of the invention. (Reference) Figure 15 The short-circuit detection process includes:

[0114] Step 510: Send a drive detection command to the drive module so that the drive module drives the signal transfer module to move to the module under test according to the received drive detection command and connects with the module under test.

[0115] Step 520: Send a second switching detection command to the switching module so that the switching module can connect the signal connection point of the module under test to the corresponding peripheral instrument according to the second switching detection command.

[0116] Step 530: Control the ATE setting channel to output the setting signal at the channel signal terminal.

[0117] Step 540: Control the peripheral instruments to measure and output signal parameters.

[0118] Step 550: Determine whether a short circuit exists based on the second theoretical value and the second measured value.

[0119] For example, for any first switch, if there is no short circuit in the first switch, the measurement signal of the peripheral instrument should be the second theoretical value. The actual measurement signal parameter of the peripheral instrument is used as the second measured value. When the absolute value of the difference between the second measured value and the second theoretical value is greater than the second set threshold, it can be determined that there is a short circuit in the first switch.

[0120] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A connection device for an automatic test equipment, characterized in that, The channel signal terminals of the automatic testing equipment are configured into multiple modules. The channel signal terminals of the automatic testing equipment are arranged in the form of multiple modules or in an irregular arrangement. Each module includes multiple signal connection points. Each signal connection point corresponds one-to-one with a channel signal terminal, and the signal on the corresponding channel signal terminal is the same. Each channel signal terminal serves as a signal connection point, so that the channel signal terminals are converted into modules with the same arrangement pattern. The number of signal connection points in the multiple modules is the same, and they have the same arrangement pattern; The spacing between two adjacent signal connection points in the row direction is the same, and the spacing between two adjacent signal connection points in the column direction is the same; the module includes at least two rows and five columns of signal connection points. The connection device of the automatic testing equipment includes a drive module, a signal conversion module, and a switching module; The drive module is used to receive drive control commands and drive the signal transfer module to move according to the received drive control commands; The signal conversion module includes multiple contact parts, and the arrangement of the multiple contact parts is the same as the arrangement of the channel signal terminals in the module; when the signal conversion module is configured to connect to any of the modules, it is electrically connected to the signal connection points in the module one by one. The switching module is electrically connected to each of the contact portions to receive switching control commands and, according to the switching control commands, connect at least a portion of the signal connection points in the module to the corresponding peripheral instruments through the corresponding contact portions to form a complete channel signal, so that multiple channel signal terminals and peripheral instruments can be connected at the same time. The switching module includes multiple first switch units. Each first switch unit includes a first end, at least one second end, and at least one first switch. One end of the first switch is electrically connected to the first end of the first switch unit, and the other end of the first switch is electrically connected to the second end of the first switch unit in a one-to-one correspondence. The first end of the first switch unit is electrically connected to the contact portion in a one-to-one correspondence. The second end of the first switch unit is used to connect to the peripheral instrument. In the switching module, at least two of the first switching units include different numbers of first switches, and / or at least two of the first switching units are connected to peripheral instruments that are not exactly the same. The automatic testing equipment is configured with different types and quantities of resource boards, and the signal definitions of the signal connection points at the same coordinate positions in multiple modules are different.

2. The connection arrangement of automatic test equipment according to claim 1, characterized in that It also includes a circuit board, on which the module is disposed, and the signal connection points are electrically connected to the channel signal terminals one by one.

3. The connection device for the automatic testing equipment according to claim 2, characterized in that, The multiple modules are arranged in the same direction on the circuit board.

4. The connection device for the automatic testing equipment according to claim 2, characterized in that, The drive module includes a motor, and a running bracket for the motor is fixed on the circuit board. The motor is used to drive the signal transfer module to move on the running bracket according to the drive control command.

5. The connection device for the automatic testing equipment according to claim 1, characterized in that, The module includes a module to be tested, and the drive control command includes a drive detection command; the drive module is used to drive the signal transfer module to move to the module to be tested according to the received drive detection command, and connect to the module to be tested. The switching control command includes a switching detection command. The switching module is used to close or disconnect the signal connection point of the module under test from the corresponding peripheral instrument according to the switching detection command, so as to determine whether the first switch is open or short-circuited by the measurement signal parameters of the peripheral instrument when the automatic test equipment outputs a signal through the channel signal terminal connected to the module under test.

6. The connection device for the automatic testing equipment according to claim 1, characterized in that, The switching module further includes at least one functional circuit, which includes at least one of a resistor, an operational amplifier, and a clock source. The switching module further includes a second switch unit. Each second switch unit includes a first terminal, at least one second terminal, and at least one second switch. One end of the second switch is electrically connected to the first terminal of the second switch unit, and the other end of the second switch is electrically connected to the second terminal of the second switch unit in a one-to-one correspondence. The first terminal of the first switch unit is connected to one end of the functional circuit, and the other end of the functional circuit is electrically connected to the contact portion in a one-to-one correspondence through a control switch. The second terminal of the second switch unit is used to connect to the peripheral instrument.

7. The connection device for the automatic testing equipment according to claim 1, characterized in that, The number of complete channels formed by the channel signal terminals corresponding to the signal connection points of at least two of the modules is different.

8. The connection device for the automatic testing equipment according to claim 1, characterized in that, The signals at at least one of the signal connection points in the module include both digital and analog signals.

9. A connection system for an automatic testing device, characterized in that, The automatic testing equipment includes a connection device according to any one of claims 1-8. The connection system of the automatic testing equipment further includes a control module, which is electrically connected to the drive module, the switching module and the peripheral instrument, respectively, and is used to issue the drive control command to the drive module and to issue the switching control command to the switching module.

10. A method for connecting an automatic testing device, applied to the connection system of the automatic testing device as described in claim 9, characterized in that, The channel signal terminals of the automatic testing equipment are configured into multiple modules. Each module includes multiple signal connection points, each signal connection point corresponding to a channel signal terminal, and the signal at each signal connection point is the same as the signal on the corresponding channel signal terminal. The number of signal connection points in the multiple modules is the same, and the arrangement is the same; The connection method for the automated testing equipment includes: A drive control command is sent to the drive module so that the drive module drives the signal transfer module to move according to the received drive control command; The signal conversion module includes multiple contact parts, and the arrangement of the multiple contact parts is the same as the arrangement of the channel signal terminals in the module; when the signal conversion module is configured to connect to any of the modules, it is electrically connected to the signal connection points in the module one by one. A switching control command is issued to the switching module so that, according to the switching control command, at least a portion of the signal connection points in the module are connected to the corresponding peripheral instruments through the corresponding contact parts to form a complete channel signal.

11. The connection method of the automatic testing equipment according to claim 10, characterized in that, The switching module includes multiple first switch units. Each first switch unit includes a first end, at least one second end, and at least one first switch. One end of the first switch is electrically connected to the first end of the first switch unit, and the other end of the first switch is electrically connected to the second end of the first switch unit in a one-to-one correspondence. The first end of the first switch unit is electrically connected to the contact portion in a one-to-one correspondence. The second end of the first switch unit is used to connect to the peripheral instrument. The module includes a module to be tested, the drive control command includes a drive detection command, and the switching control command includes a switching detection command. The step of issuing a drive control command to the drive module, so that the drive module moves according to the received drive control command, includes: The drive module sends a drive detection command to the drive module so that the drive module drives the signal transfer module to move to the module under test according to the received drive detection command and connects to the module under test. A switching control command is issued to the switching module to connect at least a portion of the signal connection points in the module to corresponding peripheral instruments via corresponding contacts, forming a complete channel signal, including: A switching detection command is sent to the switching module so that the switching module closes or disconnects the signal connection point of the module under test from the corresponding peripheral instrument according to the switching detection command. When the automatic test equipment outputs a signal through the channel signal terminal connected to the module under test, the measurement signal parameters of the peripheral instrument are used to determine whether the first switch is open or short-circuited.

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