Handheld portable GDU board testing device

Abstract

The utility model provides a hand-held portable GDU board testing device, comprising a single-chip microcomputer system module used for receiving a control signal so as to generate a driving signal according to the control signal, and also used for generating a test state result of a GDU module to be tested according to a feedback signal of the GDU module to be tested; the output display circuit module is used for displaying a test state result; the upper computer communication module is used for enabling the testing device to communicate with an upper computer; the trigger feedback circuit module is used for driving the GDU to-be-tested module according to the driving signal and receiving a feedback signal; the input control circuit module is used for inputting a control signal; the battery power supply module is used for providing working power for the testing device. According to the testing device, manual operation in the detection process is reduced, so that the GDU board testing efficiency is improved, meanwhile, process data are sent to the upper computer, testing data can be visually seen on the upper computer, comprehensive evaluation of the GDU board is facilitated, and the problem of incomplete detection is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of GDU board testing, in particular to a handheld portable GDU board testing device. Background Art

[0002] The gate driver unit (GDU), as the core driving component of the inverter of the train traction system, the GDU board is responsible for controlling the conduction and turn-off of high-power switching devices, and plays a decisive role in the stable operation of the traction system. Once a failure occurs, it may lead to the situation that the train withdraws from service on the main line. In serious cases, it may even lead to emptying the passengers, delays, etc. In the urban rail transit industry, for the functional detection of the GDU board, performance evaluation is particularly important.

[0003] At present, the GDU board brands used on subway trains include Bombardier, Siemens, CRRC Times, etc. There are many types of GDU boards, and there are great differences in their internal driving logics and delay parameters. When testing the GDU board, only the on-vehicle test can be relied on, resulting in low test efficiency, incomplete detection, and it is very easy to cause the traction inverter to burn out due to the failure of the GDU board. Therefore, it is necessary to design a handheld portable GDU board testing device that can detect the functions and performances of various brands of GDU boards on an offline test bench. Summary of the Utility Model

[0004] In order to overcome the above technical defects, the utility model provides a handheld portable GDU board testing device, which solves the problems of low test efficiency and incomplete detection of the GDU board, and can detect the functions and performances of various brands of GDU boards.

[0005] In order to solve the above problems, the utility model is implemented according to the following technical solutions:

[0006] A handheld portable GDU board testing device, comprising:

[0007] A single-chip microcomputer system module, an output display circuit module, a host computer communication module, a trigger feedback circuit module and an input control circuit module;

[0008] The single-chip microcomputer system module is connected to the output display circuit module, the host computer communication module, the trigger feedback circuit module and the input control circuit module, and the trigger feedback circuit module is connected to the GDU module to be tested;

[0009] The single-chip microcomputer system module is used to receive a control signal to generate a driving signal according to it, and is also used to generate a test status result of the GDU module to be tested according to the feedback signal of the GDU module to be tested;

[0010] The output display circuit module is used to display the test status result;

[0011] The host computer communication module is used to enable the test device to communicate with the host computer;

[0012] The trigger feedback circuit module is used to drive the GDU module under test according to the drive signal and receive the feedback signal;

[0013] The input control circuit module is used to input the control signal.

[0014] Compared with the prior art, the beneficial effects of a handheld portable GDU board test device provided by the present utility model are as follows: after the single-chip microcomputer system module receives the control signal of the input control circuit module, it generates a drive signal to enable the trigger feedback circuit module to drive the GDU module under test, and outputs the test status result to the output display circuit module for display. By reducing manual operations during the detection process, the test efficiency of the GDU board is improved. At the same time, the process data is sent to the host computer communication module for interaction, and the test data can be intuitively seen on the host computer, which helps to comprehensively evaluate the GDU board, thus solving the problem of incomplete detection.

[0015] Optionally, it further includes a battery power supply module;

[0016] The battery power supply module is connected to the output display circuit module, the single-chip microcomputer system module, and the input control circuit module;

[0017] The battery power supply module is used to provide a working power supply for the test device.

[0018] Optionally, the battery power supply module includes: a power management unit, a power input unit, a power quantity display unit, a lithium battery unit, and a power supply unit;

[0019] The power management unit is connected to the power input unit, the power quantity display unit, the lithium battery unit, and the power supply unit, and the power input unit is connected to an external power supply;

[0020] The power supply unit is connected to the output display circuit module, the single-chip microcomputer system module, and the input control circuit module.

[0021] Optionally, the single-chip microcomputer system module includes: a single-chip microcomputer, a reset circuit, and an oscillation circuit;

[0022] The single-chip microcomputer is connected to the reset circuit and the oscillation circuit;

[0023] The power supply port of the single-chip microcomputer is connected to the power supply unit;

[0024] The display signal output port of the single-chip microcomputer is connected to the output display circuit module;

[0025] The communication output port of the single-chip microcomputer is connected to the host computer communication module;

[0026] The control signal output port of the single-chip microcomputer is connected to the trigger feedback circuit module;

[0027] The input port of the single-chip microcomputer is connected to the input control circuit module.

[0028] Optionally, the input control circuit module includes a plurality of input units;

[0029] The power supply unit is connected to the input unit;

[0030] The input port of the single-chip microcomputer is connected to the input unit.

[0031] Optionally, the output display circuit module includes: a digital tube and a driving unit;

[0032] The digital tube is connected to the driving unit;

[0033] The driving unit is connected to the power supply unit and the display signal output port of the single-chip microcomputer.

[0034] Optionally, the trigger feedback circuit module includes: a receiving circuit unit and a transmitting driving unit;

[0035] The control signal output port of the single-chip microcomputer is connected to the receiving circuit unit and the transmitting driving unit;

[0036] The receiving circuit unit is used to receive the feedback signal;

[0037] The transmitting driving unit is used to drive the GDU module to be tested according to the driving signal.

[0038] Optionally, the host computer communication module includes a conversion chip and a communication interface;

[0039] The output port of the conversion chip is connected to the communication interface;

[0040] The input port of the conversion chip is connected to the communication output port of the single-chip microcomputer.

[0041] Optionally, the power management unit includes a power management chip FM5324.

[0042] Optionally, the driving unit includes a driving chip TM1650. Description of the Drawings

[0043] Figure 1 It is the overall structural block diagram of the present invention;

[0044] Figure 2 This is the circuit diagram of the battery power supply module of the present utility model;

[0045] Figure 3 This is the circuit diagram of the output display circuit module of the present utility model;

[0046] Figure 4 This is the circuit diagram of the host computer communication module of the present utility model;

[0047] Figure 5 This is the circuit diagram of the single-chip microcomputer system module of the present utility model;

[0048] Figure 6 This is the circuit diagram of the trigger feedback circuit module of the present utility model;

[0049] Figure 7 This is the circuit diagram of the input control circuit module of the present utility model.

[0050] Explanation of reference numerals: 1. Battery power supply module; 101. Battery management unit; 102. Power input unit; 103. Battery level display unit; 104. Lithium battery unit; 105. Power supply unit; 2. Output display circuit module; 201. Digital tube; 202. Driving unit; 3. Host computer communication module; 301. Conversion chip; 302. Communication interface; 4. Single-chip microcomputer system module; 401. Single-chip microcomputer; 402. Reset circuit; 403. Oscillation circuit; 5. Trigger feedback circuit module; 501. Receiving circuit unit; 502. Transmitting driving unit; 6. Input control circuit module; 7. GDU module to be tested; Detailed implementation manners

[0051] The following describes the preferred embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustration and explanation of the present utility model, and are not used to limit the present utility model.

[0052] When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are only examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims. In the description of the present application, it should be understood that the terms "first", "second", "third", etc. are only used to distinguish similar objects, and do not have to be used to describe a specific order or sequence, nor can they be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0053] See Figure 1As shown in the figure, the present utility model provides a handheld portable GDU board testing device, which includes a battery power supply module 1, an output display circuit module 2, a host computer communication module 3, a single-chip microcomputer system module 4, a trigger feedback circuit module 5 and an input control circuit module 6.

[0054] The battery power supply module 1 is connected to the output display circuit module 2, the single-chip microcomputer system module 4, and the input control circuit module 6. The single-chip microcomputer system module 4 is connected to the output display circuit module 2, the host computer communication module 3, the trigger feedback circuit module 5, and the input control circuit module 6. The trigger feedback circuit module 5 is connected to the GDU module to be tested 7.

[0055] The battery power supply module 1 is used to provide the working power supply for the testing device; the output display circuit module 2 is used to display the test status result; the host computer communication module 3 is used to enable the testing device to communicate with the host computer; the single-chip microcomputer system module 4 is used to receive the control signal to generate the driving signal according to it, and is also used to generate the test status result of the GDU module to be tested 7 according to the feedback signal of the GDU module to be tested 7; the trigger feedback circuit module 5 is used to drive the GDU module to be tested 7 according to the driving signal and receive the feedback signal; the input control circuit module 6 is used to input the control signal.

[0056] After receiving the control signal from the input control circuit module 6, the single-chip microcomputer system module 4 generates a driving signal to enable the trigger feedback circuit module 5 to drive the GDU module to be tested 7, and outputs the test status result to the output display circuit module 2 for display. By reducing the manual operation in the detection process, the testing efficiency of the GDU board is improved. At the same time, the process data is sent to the host computer communication module 3 for interaction, and the test data can be intuitively seen on the host computer, which helps to comprehensively evaluate the GDU board, thus solving the problem of incomplete detection.

[0057] See Figure 2 As shown in the figure, the battery power supply module 1 includes a battery management unit 101, a power input unit 102, a power quantity display unit 103, a lithium battery unit 104 and a power supply unit 105; the power management unit is connected to the power input unit 102, the power quantity display unit 103, the lithium battery unit 104 and the power supply unit 105. The power input unit 102 is connected to an external power supply, and the power supply unit 105 is connected to the output display circuit module 2, the single-chip microcomputer system module 4, and the input control circuit module 6.

[0058] The battery management unit 101 includes a power management chip U3, and the model is FM5324.

[0059] The power input unit 102 includes a power charging interface J9 and capacitors C2 and C6. It is connected to an external power supply through the power charging interface and then enters the battery management unit 101 through capacitors C2 and C6. The battery management unit 101 performs power management on the voltage of the external power supply.

[0060] The battery level display unit 103 includes light-emitting diodes LED12, LED9, LED13, and LED10, providing a four-level battery level display. The power management chip U3 of model FM5324 is configured with 3 LED drive ports, which can drive 4 LEDs to display the battery level. The chip has a built-in logic locking function to prevent unstable battery level indication status.

[0061] The lithium battery unit 104 is composed of 2 3.7V ultra-large-capacity lithium batteries 18650. The power management chip U3 of model FM5324 is configured with a port for charging the lithium battery, that is, the battery management unit 101 charges the lithium battery unit 104.

[0062] The power supply unit 105 outputs the working power supply VCC through components such as C3, C4, C5, S1, R30, and LED1 from the output voltage of the power management unit.

[0063] See Figure 3 As shown, the output display circuit module 2 includes a digital tube 201 and a driving unit 202. Among them, the digital tube 201 is LED1, and the driving unit 202 is the driving chip U1. The digital tube 201 is connected to the driving unit 202, and the driving unit 202 is connected to the power supply unit 105 and the display signal output port of the single-chip microcomputer 401.

[0064] The driving chip U1 is a dedicated chip TM1650 for driving and controlling the digital tube 201. The pins of the digital tube 201 are connected to the corresponding pins of the driving chip U1. The SDA pin of the driving chip U1 is connected to pin 40 of the single-chip microcomputer 401, and the SCL pin of the driving chip U1 is connected to pin 41 of the single-chip microcomputer 401.

[0065] Pin 2 and pin 3 of the driving chip U1 are respectively connected to the battery power supply module 1 through pull-up resistors R1 and R2, so that the battery power supply module 1 provides the working power supply VCC for the driving chip U1.

[0066] The output display circuit module 2 dynamically refreshes the digital tube 201 through the driving chip of model TM1650 to display the test status result.

[0067] See Figure 4As shown in the figure, the host computer communication module 3 includes resistors R2 and R5, receiving lamp LED1, transmitting lamp LED2, conversion chip 301, capacitors C4, C5, C7, and C9, and communication interface 302. The conversion chip 301 is serial port level conversion chip U1, and the communication interface 302 is connector J1.

[0068] The output port of the conversion chip 301 is connected to the communication interface 302, and the input port of the conversion chip 301 is connected to the communication output port of the single-chip microcomputer 401; one end of resistor R2 is connected to the power supply, and the other end is connected to pin 12 of the conversion chip 301 through the receiving lamp LED1; one end of resistor R5 is connected to the power supply, and the other end is connected to pin 11 of the conversion chip 301 through the transmitting lamp LED2; capacitor C5 is connected in parallel between pin 1 and pin 3 of the conversion chip 301, capacitor C4 is connected in parallel between pin 4 and pin 5, capacitor C9 is connected in parallel between pin 2 and pin 16, capacitor C7 is connected in parallel between pin 6 and pin 15, pin 15 is grounded, and pin 16 is connected to the power supply; pin 2 of the communication interface 302 is connected to pin 14 of the conversion chip 301, pin 3 of the communication interface 302 is connected to pin 13 of the conversion chip 301, and pin 5 of the communication interface 302 is grounded.

[0069] The host computer communication module 3 is serially connected to the single-chip microcomputer 401 of the single-chip microcomputer system module 4 through the conversion chip 301, and the TTL level of the communication interface is converted into RS232 level through the conversion chip 301, so as to realize the communication between the single-chip microcomputer system module 4 and the host computer at the PC end.

[0070] Participate Figure 5 As shown in the figure, the single-chip microcomputer system module 4 includes a single-chip microcomputer 401, a reset circuit 402, and an oscillation circuit 403, which is the core of the test device, and realizes the control of the input and output signals of the pins of each functional module by writing program codes, and diagnoses, records, and uploads the test process data of the GDU to-be-tested module 7.

[0071] The single-chip microcomputer 401 is connected to the reset circuit 402 and the oscillation circuit 403; the power supply port of the single-chip microcomputer 401 is connected to the power supply unit 105; the display signal output port of the single-chip microcomputer 401 is connected to the output display circuit module 2 to display the test status result of the GDU to-be-tested module 7; the communication output port of the single-chip microcomputer 401 is connected to the host computer communication module 3, so that the host computer can view the test status result of the GDU to-be-tested module 7; the control signal output port of the single-chip microcomputer 401 is connected to the trigger feedback circuit module 5 to drive the GDU to-be-tested module 7 according to the drive signal; the input port of the single-chip microcomputer 401 is connected to the input control circuit module 6 to receive the input control signal.

[0072] See Figure 6 As shown in the figure, the trigger feedback circuit module 5 includes a receiving circuit unit 501 and a transmitting drive unit 502.

[0073] The control signal output port of the single-chip microcomputer 401 is connected to the receiving circuit unit 501 and the transmitting drive unit 502. The GDU module under test 7 is connected to the receiving circuit unit 501 and the transmitting drive unit 502, and they are connected through optical fibers. The receiving circuit unit 501 is used to receive the feedback signal sent by the GDU module under test 7. The transmitting drive unit 502 is used to drive the GDU module under test 7 according to the drive signal of the single-chip microcomputer system module 4.

[0074] The receiving circuit unit 501 includes a photoelectric receiving module L3, resistors R25 and R22, and a light-emitting diode LED7. The transmitting drive unit 502 includes a photoelectric transmitting module L2, resistors R18, R19, R20, R21, and R23, light-emitting diodes LED6 and a triode Q3. One end of resistor R18 is grounded, and the other end is connected to the base of triode Q3 through resistor R19. The emitter of triode Q3 is grounded, and the collector is connected to the negative electrode of light-emitting diode LED6, one end of resistor R21, and the cathode end of the photoelectric transmitting module L2. The positive electrode of LED6 is connected to the power supply through resistor R20. Resistor R21 is connected to the power supply through resistor R23. The ANODE pin of the photoelectric transmitting module L2 is connected to resistor R21. The VO pin of the photoelectric receiving module L3 is connected to the negative electrode of light-emitting diode LED7 and resistor R25. The positive electrode of light-emitting diode LED7 is connected to the power supply through resistor R22. The other end of resistor R25 is connected to the power supply.

[0075] The trigger feedback circuit module 5 isolates and transmits the drive signal and the feedback signal respectively through the photoelectric transmitting module L2 and the optical receiving module L3, improving the anti-interference ability and safety.

[0076] See Figure 7 As shown, the input control circuit module 6 includes several input units, and each input unit is composed of a key and a resistor. Resistors R1 and key S1, resistor R3 and key S3, resistor R6 and key S4, resistor R7 and key S5 in the figure respectively form an input unit. The upper end of resistor R1 is connected to the battery power supply module 1, and the lower end is connected in series with key S1 and then grounded to GND. The upper end of resistor R3 is connected to the battery power supply module 1, and the lower end is connected in series with key S3 and then grounded to GND. The upper end of resistor R6 is connected to the battery power supply module 1, and the lower end is connected in series with key S4 and then grounded to GND. The upper end of resistor R7 is connected to the battery power supply module 1, and the lower end is connected in series with key S5 and then grounded to GND.

[0077] The input control circuit module 6 identifies the input control signal and transmits it to the single-chip microcomputer system module 4, enabling the single-chip microcomputer system module 4 to generate a drive signal according to the control signal.

[0078] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A handheld portable GDU board testing device, characterized in that, Comprising: A single-chip microcomputer system module, an output display circuit module, a host computer communication module, a trigger feedback circuit module, and an input control circuit module; The single-chip microcomputer system module is connected to the output display circuit module, the host computer communication module, the trigger feedback circuit module, and the input control circuit module, and the trigger feedback circuit module is connected to the GDU to-be-tested module; The single-chip microcomputer system module is used to receive a control signal to generate a driving signal according to it, and is also used to generate a test status result of the GDU to-be-tested module according to the feedback signal of the GDU to-be-tested module; The output display circuit module is used to display the test status result; The host computer communication module is used to enable the test device to communicate with the host computer; The trigger feedback circuit module is used to drive the GDU to-be-tested module according to the driving signal and receive the feedback signal; The input control circuit module is used to input the control signal.

2. The handheld portable GDU board testing device according to claim 1, characterized in that, It further includes a battery power supply module; The battery power supply module is connected to the output display circuit module, the single-chip microcomputer system module, and the input control circuit module; The battery power supply module is used to provide a working power supply for the test device.

3. The handheld portable GDU board testing device according to claim 2, wherein The battery power supply module includes: a power management unit, a power input unit, a power quantity display unit, a lithium battery unit, and a power supply unit; The power management unit is connected to the power input unit, the power quantity display unit, the lithium battery unit, and the power supply unit, and the power input unit is connected to an external power supply; The power supply unit is connected to the output display circuit module, the single-chip microcomputer system module, and the input control circuit module.

4. A handheld portable GDU board testing device according to claim 3, characterized in that, The single-chip microcomputer system module includes: a single-chip microcomputer, a reset circuit, and an oscillation circuit; The single-chip microcomputer is connected to the reset circuit and the oscillation circuit; The power supply port of the single-chip microcomputer is connected to the power supply unit; The display signal output port of the single-chip microcomputer is connected to the output display circuit module; The communication output port of the single-chip microcomputer is connected to the host computer communication module; The control signal output port of the single-chip microcomputer is connected to the trigger feedback circuit module; The input port of the single-chip microcomputer is connected to the input control circuit module.

5. A handheld portable GDU board testing device according to claim 4, characterized in that, The input control circuit module includes a plurality of input units; The power supply unit is connected to the input unit; The input port of the single-chip microcomputer is connected to the input unit.

6. The handheld portable GDU board testing device according to claim 5, characterized in that, The output display circuit module includes: a digital tube and a driving unit; The digital tube is connected to the driving unit; The driving unit is connected to the power supply unit and the display signal output port of the single-chip microcomputer.

7. The handheld portable GDU board testing device according to claim 6, wherein The trigger feedback circuit module includes: a receiving circuit unit and a transmitting driving unit; The control signal output port of the single-chip microcomputer is connected to the receiving circuit unit and the transmitting driving unit; The receiving circuit unit is used to receive the feedback signal; The transmitting driving unit is used to drive the GDU to-be-tested module according to the driving signal.

8. A handheld portable GDU board testing device according to claim 7, characterized in that, The host computer communication module includes a conversion chip and a communication interface; The output port of the conversion chip is connected to the communication interface; The input port of the conversion chip is connected to the communication output port of the single-chip microcomputer.

9. A hand-held portable GDU board testing device according to claim 3, characterized in that, The power management unit includes a power management chip FM5324.

10. A hand-held portable GDU board testing device according to claim 6, characterized in that The driving unit includes a driving chip TM1650.

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