A test device for detecting the interface state of a mainboard

Abstract

The utility model relates to quality detection technical field especially relates to a test device for detecting mainboard interface state, the utility model discloses a test device includes: the switching line circuit board, switching line circuit board is connected with the mainboard of measurement, flow sensor line circuit board for with flow sensor line circuit board test the first CAN interface of mainboard of measurement, servo driver, servo driver is connected with the mainboard of measurement for testing the second CAN interface of mainboard of measurement, encoder, encoder is connected with the mainboard of measurement for testing the 485 interface of mainboard of measurement. The utility model discloses a test device can improve the efficiency of interface test.

Description

Technical Field

[0001] This utility model relates to the field of quality inspection technology. More specifically, this utility model relates to a testing device for detecting the status of motherboard interfaces. Background Technology

[0002] In the field of medical rehabilitation, upper limb rehabilitation training systems assist patients in functional recovery by simulating human movement patterns. The motherboard, as the core control component of the system, directly affects the accuracy and safety of rehabilitation training. The performance of the motherboard's communication interface directly determines the stability, reliability, and system coordination efficiency of data transmission; therefore, testing the motherboard's interface status is crucial. Currently, testing of upper limb rehabilitation training system motherboards mostly employs traditional manual, one-by-one testing methods. This manual testing relies on the operator's experience and skill, resulting in low testing efficiency and a high risk of missed detections and misjudgments, making it difficult to guarantee consistent test results.

[0003] Therefore, how to develop a testing device that can quickly, accurately, and conveniently test the mainboard of the upper limb rehabilitation system is a technical problem that urgently needs to be solved. Utility Model Content

[0004] To address the technical problem of low testing efficiency when using traditional manual testing methods for motherboards, this utility model provides the following solution.

[0005] This utility model provides a testing device for detecting the status of a motherboard interface. The testing device includes: an adapter circuit board, which is connected to the motherboard under test and a flow sensor circuit board respectively, and is used to test the first CAN interface of the motherboard under test with the flow sensor circuit board; a servo driver, which is connected to the motherboard under test, and is used to test the second CAN interface of the motherboard under test; and an encoder, which is connected to the motherboard under test, and is used to test the 485 interface of the motherboard under test.

[0006] Furthermore, the flow sensor circuit board includes a flow sensor circuit, a controller circuit, and a local area network communication interface circuit connected in sequence.

[0007] Furthermore, the flow sensor circuit includes a flow sensor, a first resistor, a second resistor, and a first capacitor. The first pin of the flow sensor is connected to the first resistor and the second resistor in sequence and then grounded. One end of the first capacitor is connected to a first power supply, and the other end of the first capacitor is grounded. The second pin of the flow sensor is connected to the first power supply, and the third pin of the flow sensor is grounded.

[0008] Furthermore, the local area network (LAN) communication interface circuit includes: a LAN transceiver, a third resistor, a fourth resistor, a second capacitor, a third capacitor, and a TVS diode array; wherein, the first pin of the LAN transceiver is connected to the third resistor and the second capacitor in sequence and then grounded, and the second pin of the LAN transceiver is connected to the fourth resistor and the third capacitor in sequence and then grounded; the first pin of the TVS diode array is connected to the third resistor, and the second pin of the TVS diode array is connected to the fourth resistor.

[0009] Further, the controller circuit includes a controller, the first pin of which is connected to the second pin of a push-button switch, the second pin of which is connected to the first pin of the push-button switch, the third pin of the push-button switch being connected to a sixth resistor and then to a second power supply, the fourth pin of the push-button switch being connected to a fifth resistor and then to a second power supply; the third pin of the controller being connected to a seventh resistor and then grounded; the fourth pin of the controller being connected to a light-emitting diode and an eighth resistor in sequence and then to a second power supply; one end of a ninth resistor being connected to the second power supply, and the other end of the ninth resistor being connected to a fourth capacitor and then grounded; the fifth pin of the controller being connected to the connection point of the ninth resistor and the fourth capacitor; the sixth pin of the controller being connected to a tenth resistor and then grounded; the seventh pin of the controller being connected to the fifth capacitor and then grounded; the eighth pin of the controller being connected to the sixth capacitor and then grounded; the fifth capacitor and the sixth capacitor being connected through an eleventh resistor; and a crystal oscillator being connected across the eleventh resistor.

[0010] In this embodiment, the controller used is an STM32F103C8T.

[0011] Furthermore, the flow sensor circuit board also includes a first switching power supply circuit, which is connected to the flow sensor circuit, the local area network communication interface circuit, and the controller circuit respectively, and is used to supply power to the flow sensor circuit, the local area network communication interface circuit, and the controller circuit.

[0012] Furthermore, the testing device also includes a second switching power supply circuit, which is connected to the servo driver, the flow sensor circuit board, and the motherboard under test, respectively, and is used to supply power to the servo driver, the flow sensor circuit board, and the motherboard under test.

[0013] Furthermore, the testing device also includes a display, which is connected to the motherboard under test and is used to receive test requests input by the user and display interface test results.

[0014] The beneficial effects of this utility model are as follows: the testing device of this utility model can quickly and accurately measure the status of each interface of the motherboard, thereby improving the testing efficiency; through the display, the test results can be displayed intuitively, and testers can input test commands to test each interface of the motherboard. Attached Figure Description

[0015] Figure 1 This is a schematic block diagram illustrating the structure of a test device for detecting the status of a motherboard interface according to Embodiment 1 of the present invention.

[0016] Figure 2 This is a schematic diagram illustrating the topology of the flow sensor circuit in the flow sensor circuit board according to Embodiment 1 of the present invention.

[0017] Figure 3 This is a schematic diagram illustrating the topology of the local area network interface circuit in the flow sensor circuit board according to Embodiment 1 of the present invention.

[0018] Figure 4 This is a schematic diagram illustrating the topology of the controller circuit in the flow sensor circuit board according to Embodiment 1 of the present invention;

[0019] Figure 5 This is a schematic diagram illustrating the topology of the first switching power supply circuit in the flow sensor circuit board according to Embodiment 1 of the present invention.

[0020] Figure 6 This is a schematic diagram illustrating the topology of the emergency stop button circuit in a motherboard under test according to an embodiment of the present invention;

[0021] Figure 7 This is a schematic diagram illustrating the topology of the left turn button circuit in a motherboard under test according to an embodiment of the present invention;

[0022] Figure 8 This is a schematic diagram illustrating the topology of the right turn button circuit in a motherboard under test according to an embodiment of the present invention;

[0023] Figure 9 This is a schematic diagram illustrating the external connections of the microcontroller on the motherboard under test.

[0024] Figure 10 This is a schematic block diagram illustrating the structure of a test device for detecting the status of a motherboard interface according to Embodiment 2 of the present invention. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0027] Example 1

[0028] Figure 1 This is a schematic block diagram illustrating the structure of a test apparatus for detecting the status of a motherboard interface according to an embodiment of the present invention;

[0029] To address the low testing efficiency of existing technologies when testing the interfaces of the motherboard of an upper limb rehabilitation system, this invention provides a testing device for detecting the status of various interfaces on the motherboard of an upper limb rehabilitation system. Specifically, as shown... Figure 1 As shown, the testing device of this utility model includes: a second switching power supply, an adapter circuit board, a flow sensor circuit board, a servo driver, and an encoder. The second switching power supply is a 220V to 12V switching power supply, connected to the motherboard under test, the servo driver, the adapter circuit board, and the flow sensor circuit board, and is used to power these components. The adapter circuit board is an RJ45 interface to 4PIN interface circuit board, connected to the flow sensor circuit board and the motherboard under test, and is used to test the first CAN interface (i.e., CAN1 interface) of the motherboard under test together with the flow sensor circuit board. The servo driver has a local area network communication interface (i.e., CAN communication interface), connected to the motherboard under test, and is used to test the second CAN interface (i.e., CAN2 interface) of the motherboard under test. The encoder is connected to the motherboard under test and is used to test the 485 interface of the motherboard under test.

[0030] The testing device of this invention can conveniently and quickly test the CAN1, CAN2, and 485 communication interfaces of the motherboard under test simultaneously, thereby improving testing efficiency.

[0031] In one embodiment, the flow sensor circuit board includes a flow sensor circuit, a controller circuit, and a local area network communication interface circuit connected in sequence.

[0032] Specifically, such as Figure 2As shown, the flow sensor circuit includes a flow sensor (U2 in the figure), a first resistor (R4 in the figure), a second resistor (R5 in the figure), and a first capacitor (C8 in the figure). The first pin of the flow sensor (pin 2 in the figure) is connected to the first resistor and the second resistor in sequence and then grounded. One end of the first capacitor is connected to the first power supply (12V power supply in the figure), and the other end is grounded. The second pin of the flow sensor (pin 3 in the figure) is connected to the first power supply, and the third pin of the flow sensor (pin 4 in the figure) is grounded.

[0033] Furthermore, such as Figure 3 As shown, the LAN communication interface circuit includes: a LAN transceiver (U3 in the figure), a third resistor (R6 in the figure), a fourth resistor (R7 in the figure), a second capacitor (C10 in the figure), a third capacitor (C11 in the figure), and a TVS diode array (U4 in the figure). The first pin (pin 7 in the figure) of the LAN transceiver is connected to the third resistor and the second capacitor in sequence and then grounded; the second pin (pin 6 in the figure) of the LAN transceiver is connected to the fourth resistor and the third capacitor in sequence and then grounded; the first pin (pin 2 in the figure) of the TVS diode array is connected to the third resistor, and the second pin (pin 1 in the figure) of the TVS diode array is connected to the fourth resistor.

[0034] Furthermore, such as Figure 4 As shown, the controller circuit includes a controller (U5 in the figure), a push-button switch (SW1 in the figure), a fifth resistor (R10 in the figure), a sixth resistor (R11 in the figure), a seventh resistor (R15 in the figure), an eighth resistor (R16 in the figure), a ninth resistor (R18 in the figure), a tenth resistor (R17 in the figure), an eleventh resistor (R14 in the figure), a light-emitting diode (LED1 in the figure), a crystal oscillator (Y1 in the figure), a fourth capacitor (C19 in the figure), a fifth capacitor (C14 in the figure), and a sixth capacitor (C13 in the figure).

[0035] Specifically, the controller's first pin (pin 11 in the diagram) is connected to the second pin (pin 2 in the diagram) of the push-button switch; the controller's second pin (pin 12 in the diagram) is connected to the first pin (pin 1 in the diagram) of the push-button switch; the push-button switch's third pin (pin 3 in the diagram) is connected to the sixth resistor and then to the second power supply (VCC3.3 in the diagram); the push-button switch's fourth pin (pin 4 in the diagram) is connected to the fifth resistor and then to the second power supply; the controller's third pin (pin 20 in the diagram) is connected to the seventh resistor and then grounded; the controller's fourth pin (pin 28 in the diagram) is connected to the LED and the eighth resistor in sequence and then to the second power supply; one end of the ninth resistor is connected to the second power supply, and the other end of the ninth resistor is connected to... The fourth capacitor is connected to ground. The fifth pin of the controller (pin 7 in the diagram) is connected to the junction of the ninth resistor and the fourth capacitor. The sixth pin of the controller (pin 10 in the diagram) is connected to the tenth resistor and then grounded (GND in the diagram). The seventh pin of the controller (pin 6 in the diagram) is connected to the fifth capacitor and then grounded. The eighth pin of the controller (pin 5 in the diagram) is connected to the sixth capacitor and then grounded. The fifth and sixth capacitors are connected through the eleventh resistor. The first pin of the crystal oscillator (pin 2 in the diagram) is connected to one end of the eleventh resistor, the second pin of the crystal oscillator (pin 4 in the diagram) is connected to the other end of the eleventh resistor, and the third pin (pin 1 in the diagram) and the fourth pin (pin 3 in the diagram) of the crystal oscillator are grounded.

[0036] In one embodiment, the flow sensor circuit board further includes a first switching power supply circuit, which is a 12V to 3.3V switching power supply. This first switching power supply circuit is connected to the flow sensor circuit, the local area network communication interface circuit, and the controller circuit, respectively, and is used to supply power to these circuits.

[0037] Specifically, such as Figure 5 As shown, the first switching power supply circuit includes: a switching regulator (i.e., U1 in the figure), a twelfth resistor (i.e., R1 in the figure), a thirteenth resistor (i.e., R2 in the figure), a fourteenth resistor (i.e., R3 in the figure), a seventh capacitor (i.e., C3 in the figure), an eighth capacitor (i.e., C4 in the figure), a ninth capacitor (i.e., C1 in the figure), a tenth capacitor (i.e., C5 in the figure), an eleventh capacitor (i.e., C6 in the figure), a twelfth capacitor (i.e., C7 in the figure), and an inductor (i.e., L1 in the figure).

[0038] In this circuit, pin 1 of the switching regulator is grounded, pin 3 of the switching regulator is connected to a 12V power supply, and the seventh and eighth capacitors are connected in parallel to a 12V power supply. One end of the twelfth resistor is connected to pin 5 of the switching regulator, and the other end is connected to the seventh capacitor. One end of the ninth capacitor is connected to pin 6 of the switching regulator, and the other end is connected to pin 2 of the switching regulator. Pin 2 of the switching regulator is grounded after passing through an inductor, the thirteenth resistor, and the fourteenth resistor in sequence. The connection point of the thirteenth and fourteenth resistors is connected to pin 4 of the switching regulator. One end of the tenth capacitor is connected to VCC3.3, and the other end is grounded. The eleventh and twelfth capacitors are both connected in parallel with the tenth capacitor.

[0039] In one embodiment, the testing apparatus further includes a display connected to the motherboard under test and the first switching power supply circuit, respectively, for receiving test requests input by the user and displaying test results. Specifically, the display is connected to the motherboard under test via an Ethernet network interface, enabling testing of the network interface and data transmission. Through the display, testers can click a one-click test button to test the status of various interfaces on the motherboard under test. After the test is completed, the test results are displayed on the display.

[0040] Combination Figure 9 Test process description: The flow sensor sends data information to the controller of the flow sensor circuit board through the XGZP signal pin. The controller compiles the data and sends it to the motherboard under test through the CAN communication interface (CAN1 interface). The microcontroller of the motherboard under test sends the correct information to the display through the Ethernet network interface, thereby realizing the test of the CAN1 interface of the motherboard under test.

[0041] The 485 differential signal provided by the encoder is converted into a serial port signal by the conversion chip on the motherboard under test (in this embodiment, it is MAX485ESA, an RS-485 transceiver chip) and connected to the microcontroller on the motherboard under test. The microcontroller on the motherboard under test sends the connection status of the 485 interface to the display through the Ethernet network interface, thereby realizing the detection of the 485 interface of the motherboard under test.

[0042] The signal provided by the servo driver is sent to the microcontroller of the motherboard under test through the CAN2 interface. The microcontroller on the motherboard under test sends the connection status of the CAN2 interface to the display, thereby realizing the detection of the CAN2 port.

[0043] In addition to testing the CAN1 interface, CAN2 interface, network interface, and 485 interface of the motherboard under test, the device of this utility model can also test the emergency stop button, left turn button, and right turn button of the motherboard under test.

[0044] Specifically, the emergency stop button circuit of the motherboard under test is as follows: Figure 6As shown. When the emergency stop button is in the normally closed state, the E_STOP signal is low upon power-up. When the emergency stop button is pressed, it is released, and the E_STOP signal becomes high. At this time, the system is in a disabled state, the buzzer sounds, indicating an alarm, and the signal is simultaneously uploaded to the test device's display so that the display shows the working status of the emergency stop button.

[0045] Furthermore, the left-turn button circuit of the motherboard under test is as follows: Figure 7 As shown. When the left turn button is normally open, the controller (microcontroller) of the motherboard under test acquires a high-level signal. When the left turn button is pressed, the controller acquires a low-level signal and uploads it to the display of the test device (showing the working status of the left turn button). The three left turn buttons on the motherboard are in parallel; pressing any button will cause the controller of the motherboard under test to acquire a low-level signal and upload it to the display of the test device. The detection principle of the right turn button is the same as that of the left turn button (the circuit diagram of the right turn button is shown below). Figure 8 As shown in the image, this will not be elaborated upon further here.

[0046] Example 2

[0047] Figure 10 This is a schematic block diagram illustrating the structure of a test device for detecting the status of a motherboard interface according to Embodiment 2 of the present invention.

[0048] In this embodiment, the present invention provides a testing device for detecting the status of motherboard interfaces. For example... Figure 10 As shown. It should be noted that the difference between Embodiment 1 and Embodiment 2 is that the testing device in Embodiment 1 has a built-in display, while the testing device in Embodiment 2 is connected to the display. Other contents are largely the same.

[0049] Specifically, the testing device includes a second switching power supply, a servo driver, an adapter circuit board, and a flow sensor circuit board. The second switching power supply (220V to 12V) powers the motherboard under test, the display (with an RJ45 network interface, i.e., the network port in the diagram), the servo driver, the adapter circuit board, and the flow sensor circuit board. The servo driver (with a CAN communication interface) is used to test the CAN2 interface of the motherboard under test (i.e., the ADL motherboard under test in the diagram). The adapter circuit board (RJ45 interface to 4PIN interface) connects to the flow sensor circuit board and is used to test the CAN1 interface of the motherboard under test. The encoder is used to achieve RS-485 communication with the motherboard under test and to detect the RS-485 interface of the motherboard under test.

[0050] The monitor communicates with the motherboard under test (MDT) via an RJ45 interface (network interface), the encoder communicates with the MDT via an RS-485 interface, the servo driver communicates with the MDT via a CAN2 interface, and the adapter circuit board communicates with the MDT via a CAN1 interface. After the testing device is connected to the MDT and powered on, the tester can use the monitor's one-button self-test function to visually display the test status of each interface of the MDT on the monitor.

[0051] It should be noted that the 12V to 5V converter chip on the motherboard under test powers the encoder. Furthermore, the 485 differential signal provided by the encoder is converted into a serial signal by the converter chip on the motherboard under test and connected to the microcontroller (i.e., controller) on the motherboard. The connection status is then displayed on a monitor via the Ethernet network interface (i.e., RJ45 interface) on the motherboard under test.

[0052] The testing device of this invention enables rapid, accurate, and convenient testing of various interfaces on the motherboard under test, avoiding manual misdetection and missed detection, and improving testing efficiency.

[0053] While this specification has shown and described various embodiments of the present invention, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many modifications, alterations, and alternatives will occur to those skilled in the art without departing from the spirit and essence of the present invention. It should be understood that various alternatives to the embodiments of the present invention described herein may be employed in the practice of the present invention.

Claims

1. A testing device for detecting the status of motherboard interfaces, characterized in that, include: An adapter circuit board is connected to the motherboard under test and the flow sensor circuit board respectively, and is used to test the first CAN interface of the motherboard under test with the flow sensor circuit board. A servo driver, which is connected to the motherboard under test, is used to test the second CAN interface of the motherboard under test; An encoder is connected to the motherboard under test and is used to test the 485 interface of the motherboard under test.

2. The testing device for detecting the status of a motherboard interface according to claim 1, characterized in that, The flow sensor circuit board includes a flow sensor circuit, a controller circuit, and a local area network communication interface circuit connected in sequence.

3. The testing device for detecting the status of a motherboard interface according to claim 2, characterized in that, The flow sensor circuit includes a flow sensor, a first resistor, a second resistor, and a first capacitor. The first pin of the flow sensor is connected to the first resistor and the second resistor in sequence and then grounded. One end of the first capacitor is connected to a first power supply, and the other end of the first capacitor is grounded. The second pin of the flow sensor is connected to the first power supply, and the third pin of the flow sensor is grounded.

4. The testing apparatus for detecting the status of a motherboard interface according to claim 2, characterized in that, The local area network (LAN) communication interface circuit includes: a LAN transceiver, a third resistor, a fourth resistor, a second capacitor, a third capacitor, and a TVS diode array; wherein, the first pin of the LAN transceiver is connected to the third resistor and the second capacitor in sequence and then grounded, and the second pin of the LAN transceiver is connected to the fourth resistor and the third capacitor in sequence and then grounded; the first pin of the TVS diode array is connected to the third resistor, and the second pin of the TVS diode array is connected to the fourth resistor.

5. The testing apparatus for detecting the status of a motherboard interface according to claim 2, characterized in that, The controller circuit includes a controller. The first pin of the controller is connected to the second pin of a push-button switch. The second pin of the controller is connected to the first pin of the push-button switch. The third pin of the push-button switch is connected to a sixth resistor and then to a second power supply. The fourth pin of the push-button switch is connected to a fifth resistor and then to a second power supply. The third pin of the controller is connected to a seventh resistor and then grounded. The fourth pin of the controller is connected to a light-emitting diode and an eighth resistor in sequence and then to a second power supply. One end of a ninth resistor is connected to the second power supply, and the other end of the ninth resistor is connected to a fourth capacitor and then grounded. The fifth pin of the controller is connected to the junction of the ninth resistor and the fourth capacitor. The sixth pin of the controller is connected to a tenth resistor and then grounded. The seventh pin of the controller is connected to the fifth capacitor and then grounded. The eighth pin of the controller is connected to the sixth capacitor and then grounded. The fifth capacitor and the sixth capacitor are connected through an eleventh resistor. The crystal oscillator is connected across the eleventh resistor.

6. The testing apparatus for detecting the status of a motherboard interface according to claim 2, characterized in that, The flow sensor circuit board also includes a first switching power supply circuit, which is connected to the flow sensor circuit, the local area network communication interface circuit and the controller circuit respectively, and is used to supply power to the flow sensor circuit, the local area network communication interface circuit and the controller circuit.

7. The testing apparatus for detecting the status of a motherboard interface according to claim 1, characterized in that, It also includes a second switching power supply circuit, which is connected to the servo driver, the flow sensor circuit board, and the motherboard under test, respectively, and is used to supply power to the servo driver, the flow sensor circuit board, and the motherboard under test.

8. The testing apparatus for detecting the status of a motherboard interface according to claim 1, characterized in that, It also includes a display, which is connected to the motherboard under test and is used to receive test requests input by the user and display interface test results.

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