Visual portable multifunctional product simulator

Abstract

The utility model provides a visual portable multifunctional product simulator. The visual portable multifunctional product simulator comprises a structural shell, a display screen, a button and a control circuit board arranged in the structural shell, the control circuit board at least comprises a bottom plate, a display control unit, a button input unit, a power supply unit, a debugging interface and at least one function simulation unit; the function simulation unit at least comprises a power supply signal detection circuit, a pulse signal detection circuit, a detection and control linkage resistance voltage output circuit, a communication detection circuit and a control module. Through arrangement of the function simulation module, electrical performance parameters of a real product are met, signal receiving and outputting conditions of the product in a real test process are completely simulated, and potential hazards of dangerous parts are avoided; meanwhile, a visual operation interface design is adopted, so that the accuracy of each electrical parameter can be observed in the whole machine joint debugging process, and the visualization of the electrical parameters in the joint test process is realized; the device can be repeatedly used, and the test cost is reduced.

Description

Technical Field

[0001] This disclosure relates to the field of simulation testing technology, and in particular to a visual portable multifunctional product simulator. Background Technology

[0002] A crucial step in the research and development of military products is the joint testing of all components. All involved products must participate in this integrated testing process to complete each stage of the development. However, some real military products are extremely dangerous; triggering such events could result in explosions, radiation, or other life-threatening incidents. This is unacceptable during the development process, and the potential for such hazards is also unacceptable. To complete the model development tasks while avoiding the use of these dangerous real products, a product simulator with compliant electrical performance is needed to participate in the integrated testing and fulfill the overall testing requirements for the military product. Utility Model Content

[0003] The purpose of this disclosure is to provide a visual, portable, multifunctional product simulator to address the problems existing in the prior art.

[0004] The embodiments of this disclosure adopt the following technical solution: A visual portable multifunctional product simulator, comprising at least: a structural shell, a display screen, buttons, and a control circuit board disposed within the structural shell; wherein, the control circuit board comprises at least a base plate and a display and control unit, a button input unit, a power supply unit, a debugging interface, and at least one functional simulation unit disposed on the base plate, the display and control unit being connected to the display screen, the button input unit being connected to the buttons, and the functional simulation unit being communicatively connected to the display and control unit, the button input unit, the power supply unit, and the debugging interface via traces on the base plate; the functional simulation unit comprises at least: a power supply signal detection circuit, used to output a normal power supply signal upon receiving a power supply signal provided by the power supply unit; and a pulse signal detection circuit. The circuit is used to output a pulse normal signal when a pulse signal is received from the debugging interface; the detection linkage resistor voltage output circuit is used to output a preset voltage and a preset resistance when an input signal is received from any type selection button; the communication detection circuit is used to output a communication normal signal when a communication signal is received from the debugging interface; the control module is connected to the power supply signal detection circuit, the pulse signal detection circuit, the detection linkage resistor voltage output circuit, and the communication detection circuit, and is used to send a corresponding simulation function normal display signal to the display control unit when any one of the power supply normal signal, the pulse normal signal, the preset voltage, and the communication normal signal is received, so that the display screen displays the result of the corresponding simulation function being normal.

[0005] The beneficial effects of this embodiment are as follows: by setting the functional simulation module, it conforms to the electrical performance parameters of the real product, completely simulates the signal reception and output of the product in the real test process, and there are no potential hazards of dangerous parts; at the same time, the use of a visual operation interface design allows for observation of the accuracy of each electrical parameter during the joint debugging of the whole machine, realizing the visualization of electrical parameters in the joint testing process; and it can be reused repeatedly, reducing testing costs. Attached Figure Description

[0006] To more clearly illustrate the technical solutions in one or more embodiments of this specification or in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0007] Figure 1 This is a schematic diagram of the structure of the visualized portable multi-functional product simulator in the embodiments of this disclosure;

[0008] Figure 2 This is a schematic diagram showing the external appearance of the visualized portable multifunctional product simulator in the embodiments of this disclosure;

[0009] Figure 3 This is a schematic diagram of the structure of the functional simulation unit in the embodiments of this disclosure;

[0010] Figure 4 This is a circuit diagram of the power supply signal detection circuit in an embodiment of this disclosure;

[0011] Figure 5 This is a circuit diagram of the pulse signal detection circuit in an embodiment of this disclosure;

[0012] Figure 6 This is a circuit diagram of the detection and control linkage resistor voltage output circuit in an embodiment of this disclosure;

[0013] Figure 7 This is a circuit diagram of the communication detection circuit in an embodiment of this disclosure;

[0014] Figure 8 This is a circuit schematic diagram of the control module in an embodiment of this disclosure;

[0015] Figure 9 This is a circuit schematic diagram of the storage module in an embodiment of this disclosure;

[0016] Figure 10 This is a circuit schematic diagram of the power supply unit in an embodiment of this disclosure;

[0017] Figure 11This is a circuit diagram of the voltage conversion circuit in an embodiment of this disclosure;

[0018] Figure 12 This is a circuit diagram of the input voltage power supply circuit in an embodiment of this disclosure;

[0019] Figure 13 This is a circuit diagram of the power-off protection circuit in an embodiment of this disclosure. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solutions in one or more embodiments of this specification, the technical solutions in one or more embodiments of this specification will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this specification, and not all of the embodiments. Based on one or more embodiments of this specification, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this document.

[0021] To address the problems existing in the prior art, this disclosure provides a visual portable multifunctional product simulator to simulate all functions of different product models, facilitating functional testing and daily training of equipment systems. Figure 1 This embodiment shows a schematic diagram of the structure of a portable multifunctional product simulator, which mainly includes a housing 1, a display screen 2, buttons 3, and a control circuit board 4 housed within the housing 1. The control circuit board 4 includes at least a base plate 5 and a display and control unit 6, a button input unit 7, a power supply unit 8, a debugging interface 9, and at least one functional simulation unit 10 mounted on the base plate 5. The display and control unit 6 is connected to the display screen 2. Figure 1 (The connection relationship is not shown in the diagram). The button input unit 7 is connected to the button 3. Figure 1 (The connection relationship is not shown in the diagram). The functional simulation unit 10 is connected to the display and control unit 6, the button input unit 7, the power supply unit 8 and the debugging interface 9 through the wiring on the base plate 5.

[0022] In this embodiment, the outer shell 1 is made of hard aluminum alloy, which has low density and high hardness, achieving a lightweight and sturdy effect. The outer shell 1 adopts a portable design, with overall dimensions not exceeding 300mm*200mm*100mm and a total weight of less than 5kg, achieving a miniaturized and lightweight design. Figure 2This is a schematic diagram of the external appearance of a portable, multifunctional product simulator. The display screen 2 is located in the center of the interface, and buttons 3 are located on either side of the display screen 2 for easy operation while holding the device. The number of functional simulation units 10 is configured according to the actual product models to be tested. For example, when testing three different product models, three functional simulation units can be configured in the simulator to simulate each model separately. Each functional simulation unit 10 is independent, and its structural schematic diagram is shown below. Figure 3 As shown, it includes at least a power supply signal detection circuit 11, a pulse signal detection circuit 12, a detection and control linkage resistor voltage output circuit 13, a communication detection circuit 14, and a control module 15. The following description, in conjunction with... Figures 4 to 9 The specific implementation of the functional simulation unit 10 is explained.

[0023] Power supply signal detection circuit 11 is used to complete the simulation function of power supply signal detection circuit of the product. Its circuit schematic is shown below. Figure 4 As shown, it mainly includes the first to fourth resistors, the first capacitor, the first Zener diode, and an operational amplifier; as Figure 4 As shown, one end of the first resistor R9 is connected to the power supply signal V_T1, and the other end of the first resistor R9 is connected to the first plate of the first capacitor C5, one end of the second resistor R12, the cathode of the first Zener diode D302, and one end of the third resistor R58. The second plate of the first capacitor C5, the other end of the second resistor R12, and the anode of the first Zener diode D302 are grounded. The other end of the third resistor R58 is connected to the non-inverting input of the operational amplifier U3A, and the inverting input of the operational amplifier U3A is connected to the output of the operational amplifier U3A. One end of the fourth resistor R11 is connected to the output of the operational amplifier U3A, and the other end of the fourth resistor R11 serves as the output of the power supply signal detection circuit and is connected to the control module 15. In this embodiment, when the power supply signal detection circuit 11 receives the power supply signal V_T1 provided by the power supply unit, it outputs a normal power supply signal AD_V_T1 to the control module 15. Through the design of protection circuits such as Zener diodes and capacitors, the ability to resist electromagnetic interference is improved.

[0024] The pulse signal detection circuit 12 is used to simulate the product's pulse signal detection function. This pulse signal is connected to the simulator via an external debugging interface and originates from external debugging equipment. The pulse signal is a 5V or 28V pulse width signal with a duration greater than 100ms. Its circuit schematic is shown below. Figure 5 As shown, it mainly includes a first ferrite bead, fifth to seventh resistors, second to fourth capacitors, an opto-isolation chip, and a first transient voltage suppression diode; as shown Figure 5As shown, one end of the first magnet B301 is connected to a pulse signal, and the other end of the first magnet B301 is connected to one end of the first transient voltage suppression diode TVS411 and one end of the fifth resistor R5. The other end of the first transient voltage suppression diode TVS411 is grounded. The other end of the fifth resistor R5 is connected to one end of the sixth resistor R6 and the first plate of the third capacitor. The other end of the sixth resistor R6 is connected to the first plate of the second capacitor C2 and the first pin of the opto-isolation chip U2. The second plates of the third capacitor C3, the second plates of the second capacitor C2, and the second pin of the opto-isolation chip U2 are grounded. The third pin of the opto-isolation chip U2 is connected to one end of the seventh resistor R7 and leads out to the output terminal of the pulse signal detection circuit. The other end of the seventh resistor R7 is grounded. The fourth pin of the opto-isolation chip U2 is connected to the working voltage VCC5V. The first plate of the fourth capacitor C1 is connected to the fourth pin of the opto-isolation chip U2, and the second plate of the fourth capacitor C1 is grounded. In this embodiment, when the pulse signal detection circuit 12 receives the pulse signal sin_T1 input from the debugging interface, it outputs the normal pulse signal IN_T1 to the control module 15, and improves the anti-electromagnetic interference capability by adding protection circuits such as ferrite beads, TVS, and capacitors.

[0025] The detection and control linkage resistor voltage output circuit 13 is used to complete the simulation function of the product's detection and control linkage resistor voltage output circuit. It can complete the detection function, resistance output function and power supply control function of any type of selection button input. Figure 6 The circuit diagram for the detection and control linkage resistor voltage output circuit 13 mainly includes resistors eight through fourteen, capacitors five and six, diodes one and two, transistor one, electromagnetic relay, and optical MOSFET chip; such as Figure 6As shown, one end of the eighth resistor R1 and one end of the ninth resistor R3 are respectively connected to different output terminals of the button input unit. The other ends of the eighth resistor R1 and the ninth resistor R3 are both connected to the positive terminal of the first diode D1. The negative terminal of the first diode D1 is connected to one end of the tenth resistor R2, one end of the twelfth resistor R8, and the first plate of the fifth capacitor C4. The other end of the tenth resistor R2 is connected to the first pin of the optical MOSFET chip U1. The second pin of the optical MOSFET chip U1 is grounded. The third pin of the optical MOSFET chip U1 is connected in series with the eleventh resistor R4 and then connected to the first lead-out terminal RO+. The fourth pin of the optical MOSFET chip U1 is connected to the second lead-out terminal RO-. The first lead-out terminal RO+ and the second lead-out terminal RO- are connected to the external debugging interface. The simulator leads out resistor R4 through these two leads for external supporting devices. The detection process involves connecting the other end of the twelfth resistor R8 to the base of the first transistor and one end of the thirteenth resistor R10. The second plate of the fifth capacitor C4, the other end of the thirteenth resistor R10, and the emitter of the first transistor are all grounded. The emitter of the first transistor is connected to the positive terminal of the second diode D2 and the eighth pin of the electromagnetic relay K1. The negative terminal of the second diode D2 and the first pin of the electromagnetic relay K1 are connected to the operating voltage. The fourth and fifth pins of the electromagnetic relay K1 serve as the output terminals of the detection linkage resistor voltage output circuit. The second and seventh pins of the electromagnetic relay K1 are left floating. The third and sixth pins of the electromagnetic relay K1 are connected to the operating voltage and to the first plate of the sixth capacitor C40. The second plate of the sixth capacitor C40 is connected in series with the fourteenth resistor R70 and then connected to the fourth pin of the electromagnetic relay K1. In this embodiment, the detection and control linkage resistor voltage output circuit 13 outputs a preset voltage VCC5V and a preset resistor R4 for external supporting equipment to detect when it receives the input signal QC_Button or QC-Select from any type of selection button, thus realizing the simulation function of one-button three-linkage; and by adding a light MOS chip, capacitor C40 and relay contact protection circuit such as R70, the ability to resist electromagnetic interference is improved.

[0026] The communication detection circuit 14 is used to simulate the RS422 communication function of the product. RS422 communication serves as the product's external communication interface, used to receive communication commands and responses from the host system and complete information exchange. The circuit schematic of the communication detection circuit 14 is shown below. Figure 7As shown, it mainly includes a fifteenth resistor, a seventh capacitor, and an RS422 interface chip. The first pin of the RS422 interface chip U904 is connected to the operating voltage VCC5V and to the first plate of the seventh capacitor C939. The second plate of the seventh capacitor C939 is grounded. The second and third pins of the RS422 interface chip U904 are connected to the control module 15. The second pin is used to output a normal communication signal RS422 RO to the control module 15. The fourth pin of the RS422 interface chip U904 is grounded. The fifth and sixth pins of the RS422 interface chip U904 are differential output terminals, and the seventh and eighth pins of the RS422 interface chip U904 are differential input terminals. The fifteenth resistor R921 is connected in series between the seventh and eighth pins of the RS422 interface chip U904.

[0027] The control module 15 serves as the control center of the functional simulation unit 10, realizing the logic processing and control functions of the simulation units for three different product models. It is connected to the power supply signal detection circuit 11, the pulse signal detection circuit 12, the detection and control linkage resistor voltage output circuit 13, and the communication detection circuit 14. When it receives any one of the power supply normal signal, pulse normal signal, preset voltage, and communication normal signal, it sends the corresponding simulation function normal display signal to the display and control unit so that the display screen shows the result of the corresponding simulation function being normal. Figure 8 The circuit schematic of control module 15 is shown, which mainly includes a control chip, a clock circuit, and a reset circuit. The control chip U4 is connected to the power supply signal detection circuit, the pulse signal detection circuit, the detection linkage resistor voltage output circuit, and the communication detection circuit. The specific pin connections are as follows: Figure 8 As shown, any controller such as ARM, MCU, CPLD, FPGA, or SoC can be used for implementation. The clock circuit CLK includes chips CY1, C7, and B1. Capacitors C7 and B1 form a filter circuit to provide a stable power supply environment for clock operation and improve the accuracy of the standard clock. The output terminal CLKO of chip CY1 is connected to the clock input pin of the control chip (e.g., pin 23 of U4). The reset circuit RST includes chips U6 and C6. The output terminal RESET of chip U6 is connected to the reset pin of the control chip (e.g., pin 17 of U4) to perform the reset function. In this embodiment, the peripheral circuit of the control module 15 is simple, using an external reset chip and an external clock, which improves the stability of the controller operation.

[0028] In some embodiments, the functional simulation unit may further include a storage module 16, the circuit schematic of which is shown below. Figure 9As shown, the main components include resistors 16 to 18 and a memory chip. Pins 1 to 4 of memory chip U7 are grounded, pin 8 of memory chip U7 is connected to the operating voltage VCC5V, and pins 5 to 7 of memory chip U7 are connected to the control chip. Resistor 16 R22 is connected in series between the operating voltage and pin 7 of memory chip U7, resistor 17 R23 is connected in series between the operating voltage VCC5V and pin 6 of memory chip U7, and resistor 18 R24 is connected in series between the operating voltage and pin 5 of memory chip U7. The function of the memory module is to receive storage commands from the control module and record the operation process of the functional simulation unit in the chip. This memory chip has non-volatile characteristics after power loss and can withstand millions of read / write cycles, exhibiting high reliability.

[0029] In this embodiment, the power supply unit 8 includes a voltage conversion circuit, a power-off protection circuit, and an input voltage power-taking circuit, realizing voltage conversion, power-off protection, and dual power supply functions to ensure the normal operation of the product simulator. Its overall circuit schematic is shown below. Figure 10 As shown. Specifically, the voltage conversion circuit converts high voltage to low voltage to power the internal units of the simulator; the input voltage power supply circuit provides two power sources for the simulator: one is the simulator's own external power supply interface, and the other is the external input power signal product interface. This allows the simulator to draw power from the product simulation interface during commissioning when it is not powered on. The power failure protection circuit automatically replenishes power during power outages, ensuring the normal operation of the equipment and the security of automatically saving operational data.

[0030] Figure 11 The circuit diagram of the voltage conversion circuit is shown, which mainly includes an inductor, an isolation transformer chip, a second transient voltage suppression diode, an eighth capacitor, a ninth capacitor, and a fuse. One end of the inductor L100 is connected to the first plate of the ninth capacitor C103, and the second plate of the ninth capacitor C103 is grounded. The other end of the inductor L100 is connected to the second pin of the isolation transformer chip U100 and connected to the output terminal of the power-down protection circuit. The first pin of the isolation transformer chip U100 is grounded. The third pin of the isolation transformer chip U100 is connected to the second plate of the eighth capacitor C104 and one end of the second transient voltage suppression diode TVS360. The fourth pin of the isolation transformer chip U100 is connected to the first plate of the eighth capacitor, the other end of the second transient voltage suppression diode TVS360, and one end of the fuse F100. The other end of the fuse F100 is led out to the output terminal of the power supply unit to provide a stable 5V operating voltage output to other units.

[0031] Figure 12The circuit diagram of the input voltage extraction circuit is shown, which mainly includes diodes three through five, a third transient voltage suppression diode, a fourth transient voltage suppression diode, a tenth capacitor, and an eleventh capacitor. The anode of the third diode D100 is connected to the anode of the first external power supply QC_GD28V, and the cathode of the third diode D100 is connected to one end of the third transient voltage suppression diode TVS358 and the first plate of the tenth capacitor C100, leading to the output terminal of the input voltage extraction circuit. The cathode of the fourth diode D104 is connected to the cathode of the first external power supply QC_GND. The positive terminal of diode D104, the other end of the third transient voltage suppressor diode TVS358, and the second plate of the tenth capacitor C100 are grounded. The positive terminal of the fifth diode D101 is connected to the second external power supply VCC_28VIN, and the negative terminal of the fifth diode D101 is connected to the output terminal of the input voltage extraction circuit. One end of the fourth transient voltage suppressor diode TVS359 is connected to the second external power supply, and the other end of the fourth transient voltage suppressor diode TVS359 is grounded. The first plate of the eleventh capacitor C101 is connected to the output terminal of the input voltage extraction circuit, and the second plate of the eleventh capacitor C101 is grounded.

[0032] Figure 13The circuit diagram of the power-down protection circuit is shown. It mainly includes diodes 6 to 11, capacitors 12 to 14, resistors 16 to 20, a second transistor, and an N-type transistor. The first plate of capacitor 12 C101, the anode of diodes 6 D102 and 7 D107 are connected to the output terminal of the input voltage circuit. The second plates of capacitors 12 C101 and 13 C102, the other end of resistor 18 R104, the emitter of transistor Q101, and the second plate of capacitor 14 CF100 are grounded. The cathode of diode 7 D107 is connected in series with resistor 16 R102 and then connected to the first plate of capacitor 13 C102. One end of resistor 17 R103 is connected to the first plate of capacitor 13 C102, and the other end of resistor 17 R103 is connected to one end of resistor 18 R104. The first terminal of the diode is connected to the base of the second transistor Q101. The cathode of the sixth diode D102 is connected to the anode of the eighth diode D105, the first terminal of the N-type transistor Q100, and the anode of the tenth diode D103, and leads out to the output terminal of the power-down protection circuit. The cathode of the eighth diode D105 is connected to one end of the nineteenth resistor R101 and the cathode of the eleventh diode D106. The other end of the nineteenth resistor D101 is connected to the collector of the second transistor Q101 and the gate of the N-type transistor Q100. The second terminal of the N-type transistor Q100 is connected to the cathode of the ninth diode D108. The cathode of the tenth diode D103 is connected to one end of the twentieth resistor R100. The other end of the twentieth resistor R100 is connected to the anode of the ninth diode D108 and the first plate of the fourteenth capacitor CF100. The anode of the eleventh diode D106 is connected to the first plate of the fourteenth capacitor CF100.

[0033] This embodiment, through the setting of the functional simulation module, conforms to the electrical performance parameters of the real product, completely simulating the signal reception and output of the product during the actual testing process, and has no potential hazards from dangerous components. At the same time, it adopts a visual operation interface design, which can observe the accuracy of various electrical parameters during the joint debugging of the whole machine, realizing the visualization of electrical parameters during the joint testing process. Furthermore, the use of a lightweight and portable shell provides portability and easy transport for equipment layout and relocation during the joint testing process. This product simulator can be reset and reused during the joint debugging process, reducing testing costs.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure, and are not intended to limit them. Although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this disclosure.

Claims

1. A visual, portable, multifunctional product simulator, characterized in that, At least including: The structure includes a housing, a display screen, buttons, and a control circuit board housed within the housing; wherein... The control circuit board includes at least a base plate and a display and control unit, a button input unit, a power supply unit, a debugging interface, and at least one functional simulation unit placed on the base plate. The display and control unit is connected to the display screen, the button input unit is connected to the button, and the functional simulation unit is communicatively connected to the display and control unit, the button input unit, the power supply unit, and the debugging interface through traces on the base plate. The functional simulation unit includes at least: A power supply signal detection circuit is used to output a normal power supply signal when a power supply signal is received from the power supply unit. A pulse signal detection circuit is used to output a normal pulse signal when a pulse signal is received from the debugging interface. The detection and control linkage resistor voltage output circuit is used to output a preset voltage and a preset resistance when an input signal is received from any type of selection button. A communication detection circuit is used to output a normal communication signal when a communication signal is received from the debugging interface. The control module is connected to the power supply signal detection circuit, the pulse signal detection circuit, the detection and control linkage resistor voltage output circuit, and the communication detection circuit. When it receives any one of the power supply normal signal, the pulse normal signal, the preset voltage, and the communication normal signal, it sends a corresponding simulation function normal display signal to the display and control unit so that the display screen displays the result of the corresponding simulation function being normal.

2. The visual portable multifunctional product simulator according to claim 1, characterized in that, The power supply signal detection circuit includes: The circuit comprises a first resistor to a fourth resistor, a first capacitor, a first Zener diode, and an operational amplifier. One end of the first resistor is connected to the power supply signal. The other end of the first resistor is connected to the first plate of the first capacitor, one end of the second resistor, the cathode of the first Zener diode, and one end of the third resistor. The second plate of the first capacitor, the other end of the second resistor, and the anode of the first Zener diode are grounded. The other end of the third resistor is connected to the non-inverting input of the operational amplifier. The inverting input of the operational amplifier is connected to its output. One end of the fourth resistor is connected to the output of the operational amplifier. The other end of the fourth resistor serves as the output of the power supply signal detection circuit and is connected to the control module.

3. The visual portable multifunctional product simulator according to claim 1, characterized in that, The pulse signal detection circuit includes: The system comprises a first ferrite bead, resistors five through seven, capacitors two through four, an opto-isolation chip, and a first transient voltage suppression diode; wherein... One end of the first magnetic bead is connected to the pulse signal, and the other end of the first magnetic bead is connected to one end of the first transient voltage suppression diode and one end of the fifth resistor. The other end of the first transient voltage suppression diode is grounded. The other end of the fifth resistor is connected to one end of the sixth resistor and the first plate of the third capacitor. The other end of the sixth resistor is connected to the first plate of the second capacitor and the first pin of the opto-isolation chip. The second plate of the third capacitor, the second plate of the second capacitor, and the second pin of the opto-isolation chip are grounded. The third pin of the opto-isolation chip is connected to one end of the seventh resistor and leads out to the output terminal of the pulse signal detection circuit. The other end of the seventh resistor is grounded. The fourth pin of the opto-isolation chip is connected to the operating voltage. The first plate of the fourth capacitor is connected to the fourth pin of the opto-isolation chip, and the second plate of the fourth capacitor is grounded.

4. The visual portable multifunctional product simulator according to claim 1, characterized in that, The detection and control linkage resistor voltage output circuit includes: The system includes resistors eight through fourteen, capacitors five and six, diodes one and two, transistor one, electromagnetic relay, and an optical MOSFET chip. One end of resistor eight and one end of resistor nine are connected to different output terminals of the button input unit. The other ends of resistor eight and resistor nine are both connected to the anode of the first diode. The cathode of the first diode is connected to one end of resistor ten, one end of resistor twelf, and the first plate of capacitor five. The other end of resistor ten is connected to the first pin of the optical MOSFET chip. The second pin of the optical MOSFET chip is grounded. The third pin of the optical MOSFET chip is connected in series with resistor eleven and then connected to the first output terminal. The fourth pin of the optical MOSFET chip is connected to the second output terminal. The other end of the two resistors is connected to the base of the first transistor and one end of the thirteenth resistor. The second plate of the fifth capacitor, the other end of the thirteenth resistor, and the emitter of the first transistor are all grounded. The emitter of the first transistor is connected to the positive terminal of the second diode and the eighth pin of the electromagnetic relay. The negative terminal of the second diode and the first pin of the electromagnetic relay are connected to the operating voltage. The fourth and fifth pins of the electromagnetic relay serve as the output terminals of the detection linkage resistor voltage output circuit. The second and seventh pins of the electromagnetic relay are left floating. The third and sixth pins of the electromagnetic relay are connected to the operating voltage and connected to the first plate of the sixth capacitor. The second plate of the sixth capacitor is connected in series with the fourteenth resistor and then connected to the fourth pin of the electromagnetic relay.

5. The visual portable multifunctional product simulator according to claim 1, characterized in that, The communication detection circuit includes: The system comprises a fifteenth resistor, a seventh capacitor, and an RS422 interface chip. The first pin of the RS422 interface chip is connected to the operating voltage and to the first plate of the seventh capacitor. The second plate of the seventh capacitor is grounded. The second and third pins of the RS422 interface chip are connected to the control module. The fourth pin of the RS422 interface chip is grounded. The fifth and sixth pins of the RS422 interface chip are differential output terminals. The seventh and eighth pins of the RS422 interface chip are differential input terminals. The fifteenth resistor is connected in series between the seventh and eighth pins of the RS422 interface chip.

6. The visual portable multifunctional product simulator according to claim 1, characterized in that, The control module includes: The system includes a control chip, a clock circuit, and a reset circuit; wherein the control chip is connected to the power supply signal detection circuit, the pulse signal detection circuit, the detection linkage resistor voltage output circuit, and the communication detection circuit; the output terminal of the clock circuit is connected to the clock input pin of the control chip, and the output terminal of the reset circuit is connected to the reset pin of the control chip.

7. The visual portable multifunctional product simulator according to claim 6, characterized in that, The functional simulation unit further includes a storage module; the storage module includes: a sixteenth to an eighteenth resistor and a storage chip; wherein, the first to fourth pins of the storage chip are grounded, the eighth pin of the storage chip is connected to the operating voltage, the fifth to seventh pins of the storage chip are connected to the control chip, the sixteenth resistor is connected in series between the operating voltage and the seventh pin of the storage chip, the seventeenth resistor is connected in series between the operating voltage and the sixth pin of the storage chip, and the eighteenth resistor is connected in series between the operating voltage and the fifth pin of the storage chip.

8. The visual portable multifunctional product simulator according to claim 1, characterized in that, The power supply unit includes at least a voltage conversion circuit, a power failure protection circuit, and an input voltage extraction circuit; wherein... The voltage conversion circuit includes: an inductor, an isolation transformer chip, a second transient voltage suppression diode, an eighth capacitor, a ninth capacitor, and a fuse; one end of the inductor is connected to the first plate of the ninth capacitor, the second plate of the ninth capacitor is grounded, the other end of the inductor is connected to the second pin of the isolation transformer chip and connected to the output terminal of the power-down protection circuit, the first pin of the isolation transformer chip is grounded, the third pin of the isolation transformer chip is connected to the second plate of the eighth capacitor and one end of the second transient voltage suppression diode, the fourth pin of the isolation transformer chip is connected to the first plate of the eighth capacitor, the other end of the second transient voltage suppression diode, and one end of the fuse, and the other end of the fuse leads out to the output terminal of the power supply unit; The input voltage power extraction circuit includes: a third to a fifth diode, a third transient voltage suppression diode, a fourth transient voltage suppression diode, a tenth capacitor, and an eleventh capacitor; wherein, the anode of the third diode is connected to the anode of the first external power supply, the cathode of the third diode is connected to one end of the third transient voltage suppression diode and the first plate of the tenth capacitor and leads out to the output terminal of the input voltage power extraction circuit, the cathode of the fourth diode is connected to the cathode of the first external power supply, the anode of the fourth diode, the other end of the third transient voltage suppression diode, and the second plate of the tenth capacitor are grounded, the anode of the fifth diode is connected to the second external power supply, the cathode of the fifth diode is connected to the output terminal of the input voltage power extraction circuit, one end of the fourth transient voltage suppression diode is connected to the second external power supply, the other end of the fourth transient voltage suppression diode is grounded, the first plate of the eleventh capacitor is connected to the output terminal of the input voltage power extraction circuit, and the second plate of the eleventh capacitor is grounded; The power-down protection circuit includes: diodes 6 to 11, capacitors 12 to 14, resistors 16 to 20, a second transistor, and an N-type transistor. The first plate of the 12th capacitor, the anode of the 6th diode, and the anode of the 7th diode are connected to the output terminal of the input voltage circuit. The second plates of the 12th and 13th capacitors, the other end of the 18th resistor, the emitter of the second transistor, and the second plate of the 14th capacitor are grounded. The cathode of the 7th diode is connected in series with the 16th resistor and then connected to the first plate of the 13th capacitor. One end of the 17th resistor is connected to the first plate of the 13th capacitor, and the other end of the 17th resistor is connected to the 18th resistor. One end of the sixth diode is connected to the base of the second transistor. The cathode of the sixth diode is connected to the anode of the eighth diode, the first terminal of the N-type transistor, and the anode of the tenth diode, and leads out to the output terminal of the power-down protection circuit. The cathode of the eighth diode is connected to one end of the nineteenth resistor and the cathode of the eleventh diode. The other end of the nineteenth resistor is connected to the collector of the second transistor and the gate of the N-type transistor. The second terminal of the N-type transistor is connected to the cathode of the ninth diode. The cathode of the tenth diode is connected to one end of the twentieth resistor. The other end of the twentieth resistor is connected to the anode of the ninth diode and the first plate of the fourteenth capacitor. The anode of the eleventh diode is connected to the first plate of the fourteenth capacitor.

9. The visual portable multifunctional product simulator according to any one of claims 1 to 8, characterized in that, The outer shell of the structure is made of hard aluminum alloy.

10. The visual portable multifunctional product simulator according to claim 9, characterized in that, The display screen is located in the middle of one side surface of the structural housing, the buttons are located on both sides of the display screen, and one side of the structural housing has an interface opening for accommodating the debugging interface.

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