A test device for simulating monitoring function extension

Abstract

The utility model discloses a kind of test devices of analog monitoring function extension.The device includes: shell;The shell is equipped with: signal acquisition module, voltage reduction module, opto-isolator module and voice broadcast module connected in turn electrically;Signal acquisition module is used to collect multiple first locomotive voltage signals;Voltage reduction module is used to reduce pressure to first locomotive voltage signal, obtain second locomotive voltage signal;Opto-isolator module is used to reduce pressure again to second locomotive voltage signal, obtain third locomotive voltage signal, and realize electrical isolation;Voice broadcast module is used to issue corresponding voice broadcast based on third locomotive voltage signal.The utility model cooperates by above-mentioned module, when replacing monitoring function extension box to complete the collection and verification of locomotive whistle signal, manual and automatic overpassing phase division main disconnect signal in electric locomotive overhaul or C6 repair, avoid the hidden danger that monitoring function extension box is burnt due to line problem, significantly improve the security and efficiency of locomotive overhaul.

Description

Technical Field

[0001] This utility model belongs to the field of railway electric locomotive maintenance technology, and more specifically, relates to a test device for expanding the simulation monitoring function. Background Technology

[0002] The train operation monitoring device is a core piece of equipment ensuring train operation safety. It consists of components such as a monitoring host, a monitoring screen, a monitoring function expansion box, pressure sensors, a whistle converter, and speed sensors. Among them, the monitoring function expansion box, as a key component, is responsible for collecting locomotive whistle signals, automatic phase separation main disconnection signals, and manual phase separation main disconnection signals, and transmitting these signals to the locomotive monitoring device to achieve real-time monitoring of the locomotive driver's operational compliance.

[0003] When electric locomotives undergo major overhauls or C6 maintenance, the monitoring function expansion box in the train operation monitoring device must be removed beforehand. This operation directly results in the inability to conduct monitoring function expansion tests during the whole vehicle commissioning phase, requiring manual line alignment for confirmation of the relevant lines. This traditional method is not only inefficient but also carries the risk of damage to the monitoring function expansion box due to errors in manual alignment, causing the locomotive to return to the depot. Therefore, designing a device capable of accurately confirming locomotive horn signals, automatic phase crossing signals, and manual phase crossing main disconnection signals has become an urgent need in current maintenance work.

[0004] The information disclosed in the background section of this utility model is intended only to enhance the understanding of the general background of this utility model, and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to propose a test device for simulating the expansion of monitoring functions, which solves the problems of low efficiency and potential burn-out of the monitoring function expansion box in traditional maintenance methods, and enables accurate confirmation of locomotive horn signals, automatic phase crossing and manual phase crossing main disconnection signals.

[0006] To achieve the above objectives, this utility model proposes an experimental device for extending the simulation monitoring function, comprising:

[0007] case;

[0008] The housing contains:

[0009] The signal acquisition module, step-down module, optocoupler isolation module, and voice broadcast module are connected in sequence.

[0010] The signal acquisition module is used to acquire multiple voltage signals from the first locomotive;

[0011] The step-down module is used to step down the voltage signal of the first locomotive to obtain the voltage signal of the second locomotive;

[0012] The optocoupler isolation module is used to further step down the voltage signal of the second locomotive to obtain the voltage signal of the third locomotive, and to achieve electrical isolation.

[0013] The voice broadcast module is used to issue corresponding voice broadcasts based on the voltage signal of the third locomotive.

[0014] Optionally, the housing may further include:

[0015] Multiple status indicator lights, each corresponding to a voltage signal of a first locomotive, are electrically connected to the voice broadcast module.

[0016] Optionally, the housing is provided with:

[0017] The signal acquisition interface is electrically connected to the signal acquisition module and is used to receive the voltage signals of each of the first locomotives.

[0018] Optionally, the housing may further include:

[0019] The power interface, fuse and power switch are connected in sequence, and the power switch is electrically connected to the step-down module.

[0020] The DC 110V operating power is supplied to the step-down module through the power interface.

[0021] Optionally, the housing may further include:

[0022] The self-test button is electrically connected to the voice broadcast module. Pressing the self-test button will cause the voice broadcast button to emit corresponding voice broadcasts in sequence, while multiple status indicator lights will light up in sequence.

[0023] Optionally, the first locomotive voltage signal includes:

[0024] The DC110V signal includes a driver's cab horn sensor signal at one end, a driver's cab horn sensor signal at the other end, a manual over-phase disconnection main disconnection signal, and an automatic over-phase disconnection main disconnection signal.

[0025] Optionally, the second locomotive voltage signal includes:

[0026] The DC24V signal includes a driver's cab horn sensor signal at one end, a driver's cab horn sensor signal at the other end, a manual over-phase disconnection main disconnection signal, and an automatic over-phase disconnection main disconnection signal.

[0027] Optionally, the third locomotive voltage signal includes:

[0028] The DC12V signal includes a driver's cab horn sensor signal at one end and a driver's cab horn sensor signal at the other end, a manual over-phase disconnection main disconnection signal, and an automatic over-phase disconnection main disconnection signal.

[0029] Optionally, the test device forms four loops through a signal acquisition module, a step-down module, an optocoupler isolation module, a voice broadcast module, and four status indicator lights, which are used to process the horn sensor signal from one driver's cab, the horn sensor signal from the other driver's cab, the manual over-phase disconnection main disconnection signal, and the automatic over-phase disconnection main disconnection signal, respectively.

[0030] The beneficial effects of this utility model are as follows: Multiple first locomotive voltage signals are acquired through a signal acquisition module, stepped down to second locomotive voltage signals through a step-down module, and further stepped down to third locomotive voltage signals by an optocoupler isolation module, achieving electrical isolation and ensuring the safety and stability of the signal processing process. Based on the third locomotive voltage signal, a corresponding voice broadcast module issues a voice broadcast, providing intuitive feedback on signal acquisition and line confirmation results, assisting operators in quickly judging the status of relevant locomotive components and lines, and improving maintenance efficiency. Furthermore, based on the third locomotive voltage signal, this utility model can replace the premature removal of the monitoring function expansion box during major overhauls or C6 overhauls of electric locomotives to confirm the correctness of relevant signals and lines, solving the problem of not being able to conduct monitoring function expansion tests during the whole vehicle debugging stage, avoiding the inefficient method of relying on manual wiring calibration and the potential damage to the monitoring function expansion box.

[0031] The system of this invention has other features and advantages that will be apparent from or will be set forth in detail in the accompanying drawings and the following detailed description, which together serve to explain the particular principles of this invention. Attached Figure Description

[0032] The above and other objects, features and advantages of the present invention will become more apparent from the more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, in which the same reference numerals generally represent the same components.

[0033] Figure 1 An internal schematic diagram of an experimental apparatus with an extended simulation monitoring function according to an embodiment of the present invention is shown.

[0034] Figure 2 A front view of a test apparatus with an extended simulation monitoring function according to an embodiment of the present invention is shown. Detailed Implementation

[0035] The present invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.

[0036] Example:

[0037] like Figure 1 and Figure 2 As shown, this embodiment provides an experimental device for simulating and expanding monitoring functions, including:

[0038] Casing 1;

[0039] The housing 1 contains:

[0040] The signal acquisition module 2, the step-down module 3, the optocoupler isolation module 4, and the voice broadcast module 5 are connected in sequence.

[0041] Signal acquisition module 2 is used to acquire multiple voltage signals from the first locomotive;

[0042] Step-down module 3 is used to step down the voltage signal of the first locomotive to obtain the voltage signal of the second locomotive;

[0043] The optocoupler isolation module 4 is used to further step down the voltage signal of the second locomotive to obtain the voltage signal of the third locomotive, and to achieve electrical isolation.

[0044] The voice broadcast module 5 is used to issue corresponding voice broadcasts based on the voltage signal of the third locomotive.

[0045] Specifically, the experimental device in this embodiment includes a housing 1. Inside the housing 1 are a signal acquisition module 2, a step-down module 3, an optocoupler isolation module 4, and a voice broadcast module 5, which are connected in sequence. The signal acquisition module 2 serves as the interface between the device and the locomotive, and is responsible for acquiring multiple first locomotive voltage signals and transmitting them to the step-down module 3. The step-down module 3 performs voltage reduction processing on the first locomotive voltage signals transmitted by the signal acquisition module 2, converting the DC110V voltage into a safe low-voltage DC24V signal, i.e., the second locomotive voltage signal. The step-down module 3 integrates overvoltage protection, overheat protection, short-circuit protection, and undervoltage protection functions for each signal to prevent damage to subsequent modules due to abnormal voltage and ensure stable operation of the device. The optocoupler isolation module 4 further converts the second locomotive voltage signal output by the step-down module 3 into a third locomotive voltage signal with a lower voltage from the step-down module 3, that is, converting the DC24V voltage signal output by the step-down module 3 into a DC12V voltage signal; at the same time, it achieves electrical isolation between the input (DC24V) and the output (DC12V) through optocoupler components, avoiding interference between high and low voltage signals, and preventing locomotive-side voltage fluctuations from affecting the internal circuits of the device, thus improving overall safety. The voice broadcast module 5, based on the third locomotive voltage signal transmitted by the optocoupler isolation module 4, identifies the signal type through a built-in voice chip and drives the speaker 12 to emit corresponding voice broadcasts; for example, when a horn sensor signal is received from one driver's cab, it broadcasts "One driver's cab horn"; when a horn sensor signal is received from two driver's cabs, it broadcasts "Two driver's cabs horn"; when a manual over-phase disconnection main disconnection signal is received, it broadcasts "Manual over-phase disconnection main disconnection"; when an automatic over-phase disconnection main disconnection signal is received, it broadcasts "Automatic over-phase disconnection main disconnection". The test device in this embodiment, through the coordinated operation of the above modules, can replace the monitoring function expansion box to complete the acquisition and verification of locomotive horn signals, manual and automatic over-phase disconnection signals during major overhauls or C6 repairs of electric locomotives and in cases where the monitoring function expansion box is removed in advance. The results are fed back in the form of voice broadcast, which solves the problems of low efficiency and easy error in traditional manual line calibration, avoids the hidden danger of the monitoring function expansion box being burned due to line problems, and significantly improves the safety and efficiency of locomotive maintenance.

[0046] In this embodiment, the housing 1 also includes:

[0047] Multiple status indicator lights 11 are respectively associated with the voltage signals of each locomotive, and the status indicator lights 11 are electrically connected to the voice broadcast module 5.

[0048] Specifically, the housing 1 is also equipped with multiple status indicator lights 11, which correspond one-to-one with the first locomotive voltage signal. For example, one status indicator light corresponds to the horn sensor signal in one driver's cab; one status indicator light corresponds to the horn sensor signals in two driver's cabs; one status indicator light corresponds to the manual over-phase separation main disconnect signal; and one status indicator light corresponds to the automatic over-phase separation main disconnect signal. When the voice broadcast module 5 receives the horn signal from one driver's cab sensor and broadcasts "horn sound in one driver's cab," the corresponding status indicator light is simultaneously illuminated. If no signal is collected or there is an abnormality in the line, the corresponding status indicator light 11 remains off. The status indicator lights visually display the acquisition status of the corresponding signals, providing dual "auditory + visual" feedback in conjunction with voice broadcasts. This helps operators quickly and accurately determine whether signals are being transmitted normally and whether the lines are correct, solving the ambiguity problem of relying on experience-based judgment during manual line calibration. As a linkage component of the voice broadcast module 5, the status indicator light 11 further enhances the human-computer interaction capabilities of the testing device, improving the accuracy and efficiency of signal confirmation during electric locomotive maintenance and effectively avoiding the risk of damage to the monitoring function expansion box due to line misjudgment. Furthermore, different status indicator lights 11 can be used; the color of the light directly distinguishes the currently acquired signal type, eliminating the need for complex judgments and allowing operators to quickly identify the test object.

[0049] In this embodiment, the housing 1 is provided with:

[0050] Signal acquisition interface 6 is electrically connected to signal acquisition module 2 and is used to receive voltage signals from each locomotive.

[0051] Specifically, the signal acquisition interface 6 is directly electrically connected to the signal acquisition module 2 inside the housing. Its main function is to serve as the physical connection medium between the device and the locomotive, receiving the first locomotive voltage signal from the electric locomotive and providing the raw input for signal processing by subsequent modules. The interface specifications match the corresponding interface on the locomotive to ensure reliable connection with the locomotive line and avoid loosening or poor contact during signal transmission. The signal acquisition interface 6 can adopt a standardized interface design. This standardized interface design ensures that the device can quickly and accurately connect to the locomotive line, replacing the temporary wiring method used in traditional manual line calibration and improving operational convenience. In this embodiment, the dedicated interface connects the device and the locomotive, reducing the risk of line exposure. At the same time, the fuse in the power supply line further reduces the possibility of damage to the device due to power abnormalities, indirectly ensuring the safety of the locomotive line.

[0052] In this embodiment, the housing 1 is further provided with:

[0053] The power interface 7, fuse 8 and power switch 9 are connected in sequence, and the power switch 9 is electrically connected to the step-down module 3.

[0054] The DC 110V operating power is supplied to the step-down module 3 through the power interface 7.

[0055] Specifically, the housing 1 is also equipped with a power interface 7, a fuse 8, and a power switch 9 connected in sequence. The output terminal of the power switch 9 is electrically connected to the step-down module 3. The power interface 7 serves as the interface port for the device to connect to the locomotive's DC110V operating power supply. It is specifically designed to receive DC110V power from the locomotive, and its interface specifications match the locomotive's power output interface to ensure the stability and compatibility of the power supply connection. The fuse 8 is connected in series in the power supply circuit as an overcurrent protection element. When an abnormal situation such as a short circuit or overcurrent occurs in the internal circuit of the device, the fuse 8 will automatically melt, cutting off the power supply and preventing excessive current from damaging the step-down module. At the same time, it prevents device failure from affecting the locomotive's power system, providing dual safety protection. The power switch 9 serves as the main control component for the device's power supply and is used to manually control the on / off state of the power supply circuit. Operators can start or stop the device by closing or opening the switch, facilitating on-demand control of the device's operating status during maintenance operations and improving operational safety.

[0056] In this embodiment, the housing 1 is further provided with:

[0057] The self-test button 10 is electrically connected to the voice broadcast module 5. Pressing the self-test button 10 causes the voice broadcast button 5 to issue corresponding voice broadcasts in sequence, while multiple status indicator lights 11 light up in sequence.

[0058] Specifically, the self-test button 10 is designed to verify the device's own status, triggering the self-test process through physical pressing. It is electrically connected to the voice broadcast module 5 inside the housing. When the button is pressed, it sends a trigger signal to the voice broadcast module 5, driving it to execute a preset self-test program. Before testing locomotive signals, the self-test button 10 confirms the device's good condition, avoiding misjudgments of locomotive line signals due to device malfunction and ensuring the accuracy of subsequent test results. As a key component for device self-verification, the self-test button 10, through its linkage with the voice broadcast module 5 and status indicator 11, constructs a complete self-test mechanism, ensuring the device is in a reliable state before being put into locomotive signal testing. This provides important protection for improving maintenance efficiency and avoiding the risk of misjudgments due to device problems.

[0059] For example, after pressing the self-test button 10, the device's self-test process unfolds according to the following logic: Upon receiving the trigger signal, the voice broadcast module 5 will output voice broadcasts corresponding to the four signals in a preset order (e.g., one driver's cab horn → two driver's cab horn → manual over-phase separation main disconnection → automatic over-phase separation main disconnection), that is, sequentially issuing voice prompts for "one driver's cab horn", "two driver's cab horn", "manual over-phase separation main disconnection", and "automatic over-phase separation main disconnection". Simultaneously with the voice broadcasts, the voice broadcast module 5 will synchronously control the status indicator lights 11 corresponding to each of the four signals, causing them to light up sequentially in the same order (each voice broadcast corresponds to its dedicated indicator light), forming a synchronous feedback of "voice + light". If the voice broadcast is clear and complete, and the status indicator lights 11 light up in sequence, it indicates that the signal acquisition module 2, step-down module 3, optocoupler isolation module 4, voice control module 5, and status indicator lights 11 of the device are all working normally. If there is a lack of voice, the indicator lights are not lit, or the display lights are disordered, it indicates that there is a fault in the device, and it needs to be checked and repaired before it can be put into use.

[0060] In this embodiment, the first locomotive voltage signal includes:

[0061] The DC110V signal includes a driver's cab horn sensor signal at one end, a driver's cab horn sensor signal at the other end, a manual over-phase disconnection main disconnection signal, and an automatic over-phase disconnection main disconnection signal.

[0062] Specifically, both the horn sensor signals from one and two driver's cabs are DC 110V voltage signals. These are the core basis for the monitoring device to judge the compliance of the horn operation in both driver's cabs. The continuity and transmission correctness of this signal line are confirmed by the testing device to avoid the monitoring device being unable to recognize the horn operation due to line faults. Both the manual phase-crossing main circuit breaker signal and the automatic phase-crossing main circuit breaker signal are DC 110V voltage signals. The manual phase-crossing main circuit breaker signal is generated when the driver manually operates the phase-crossing device. It is used to control the locomotive to disconnect the main circuit breaker in the phase-crossing zone to ensure the safe passage of the train through the phase-crossing section of the electrified railway. It is a key signal for monitoring the compliance of the driver's manual phase-crossing operation. In this embodiment, the connection correctness of the relevant lines for manual phase-crossing is confirmed by collecting the manual phase-crossing main circuit breaker signal to avoid the operation signal not being transmitted to the monitoring device or causing abnormal main circuit breaker control due to line errors. The automatic phase-crossing disconnect signal is triggered by the locomotive's automatic phase-crossing system. It automatically controls the main circuit breaker to disconnect when approaching the phase-crossing zone, requiring no manual operation from the driver. It is used to monitor the normal triggering and execution of the automatic phase-crossing function. This embodiment verifies the integrity of the automatic phase-crossing signal line by collecting the automatic phase-crossing disconnect signal, ensuring error-free signal transmission of the automatic control logic and guaranteeing the safety of the train when passing through the phase-crossing zone. The above four types of DC110V signals are the core monitoring objects for the extended monitoring function of electric locomotives. The test device collects these signals through a signal acquisition module, and after voltage reduction and isolation, finally confirms the correctness of the signal line through voice broadcast and status indicator lights. This design directly addresses the testing needs after the removal of the monitoring function extension box during major overhauls or C6 overhauls of electric locomotives, solving the problems of low efficiency and high risk associated with traditional manual line calibration, and providing a reliable signal verification method for locomotive maintenance.

[0063] In this embodiment, the second locomotive voltage signal includes:

[0064] The DC24V signal includes a driver's cab horn sensor signal at one end, a driver's cab horn sensor signal at the other end, a manual over-phase disconnection main disconnection signal, and an automatic over-phase disconnection main disconnection signal.

[0065] In this embodiment, the voltage signal of the third locomotive includes:

[0066] The DC12V signal includes a driver's cab horn sensor signal at one end and a driver's cab horn sensor signal at the other end, a manual over-phase disconnection main disconnection signal, and an automatic over-phase disconnection main disconnection signal.

[0067] In this embodiment, the test device forms four loops through the signal acquisition module 2, the step-down module 3, the optocoupler isolation module 4, the voice broadcast module 5, and four status indicator lights 11, which are used to process the horn sensor signal from one end of the driver's cab, the horn sensor signal from the two ends of the driver's cab, the manual over-phase separation main disconnect signal, and the automatic over-phase separation main disconnect signal, respectively.

[0068] Specifically, the experimental device in this embodiment uses a signal acquisition module 2, a step-down module 3, an optocoupler isolation module 4, a voice broadcast module 5, and four status indicator lights 11 to form four independent loops for four types of signals, respectively processing the horn sensor signal from one driver's cab, the horn sensor signal from two driver's cabs, the manual over-phase separation main disconnect signal, and the automatic over-phase separation main disconnect signal. Each loop consists of the same modules connected in series and corresponds one-to-one with a specific signal. For example, the first loop processes the horn sensor signal from one driver's cab and corresponds to the first status indicator light 11; the second loop processes the horn sensor signal from two driver's cabs and corresponds to the second status indicator light 11; the third loop processes the manual over-phase separation main disconnect signal and corresponds to the third status indicator light 11; and the fourth loop processes the automatic over-phase separation main disconnect signal and corresponds to the fourth status indicator light 11. The four loops work in parallel and independently of each other, and the processing of a single signal does not affect the operation of other loops. Taking the first loop corresponding to the horn sensor signal from one driver's cab as an example, its signal processing flow is as follows:

[0069] Signal acquisition: Signal acquisition module 2 receives the DC110V signal (first locomotive voltage signal) emitted by the horn sensor in the driver's cab through signal acquisition interface 6;

[0070] Step-down processing: The DC110V signal is transmitted to step-down module 3 and converted into a DC24V safe low-voltage signal (second locomotive voltage signal). At the same time, the module's built-in overvoltage, overheat, short circuit, and undervoltage protection functions are activated to ensure signal processing safety.

[0071] Isolation and secondary voltage reduction: The DC24V signal enters the optocoupler isolation module 4, which is further converted into a DC12V signal (the third locomotive voltage signal). The input (DC24V) and output (DC12V) are electrically isolated through the optocoupler element to avoid high and low voltage interference.

[0072] Voice and status feedback: The DC12V signal is transmitted to the voice broadcast module 5, which drives the speaker to emit a voice broadcast of "one end of the driver's cab horn". At the same time, it triggers the corresponding status indicator 11 of the first circuit to light up, providing a dual feedback signal of status through visual and auditory feedback.

[0073] The workflow of the other three circuits is consistent with the above logic, only the types of signals they process and the feedback content are different (such as "two-terminal driver's cab horn" and "manual over-phase disconnection main circuit").

[0074] This embodiment processes the four signals in separate circuits. When a single circuit fails (such as a short circuit or module malfunction), it does not affect the acquisition and feedback of the other three signals, ensuring the overall stability of the device. If a signal has no voice broadcast or the corresponding status indicator 11 is not lit, the signal acquisition, step-down, isolation, or feedback link of that circuit can be directly locked to quickly troubleshoot line or module problems, replacing the blindness of traditional manual line calibration. For scenarios after the monitoring function expansion box is removed during major overhauls or C6 repairs of electric locomotives, the four independent circuits correspond to the verification requirements of key locomotive operation signals, fully covering the core acquisition function of the monitoring function expansion box, ensuring that the correctness of relevant lines can be quickly confirmed by the device during vehicle debugging, improving maintenance efficiency and reducing the risk of burnout.

[0075] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. An experimental device with extended simulation monitoring function, characterized in that, include: case; The housing contains: The signal acquisition module, step-down module, optocoupler isolation module, and voice broadcast module are connected in sequence. The signal acquisition module is used to acquire multiple voltage signals from the first locomotive; The step-down module is used to step down the voltage signal of the first locomotive to obtain the voltage signal of the second locomotive; The optocoupler isolation module is used to further step down the voltage signal of the second locomotive to obtain the voltage signal of the third locomotive, and to achieve electrical isolation. The voice broadcast module is used to issue corresponding voice broadcasts based on the voltage signal of the third locomotive.

2. The experimental device for extending the simulation monitoring function according to claim 1, characterized in that, The housing also contains: Multiple status indicator lights, each corresponding to a voltage signal of a first locomotive, are electrically connected to the voice broadcast module.

3. The experimental device for extending the simulation monitoring function according to claim 2, characterized in that, The housing is provided with: The signal acquisition interface is electrically connected to the signal acquisition module and is used to receive the voltage signals of each of the first locomotives.

4. The experimental device for extending the simulation monitoring function according to claim 3, characterized in that, The housing is also provided with: The power interface, fuse and power switch are connected in sequence, and the power switch is electrically connected to the step-down module. The DC 110V operating power is supplied to the step-down module through the power interface.

5. The experimental apparatus for extending the simulation monitoring function according to claim 4, characterized in that, The housing is also provided with: The self-test button is electrically connected to the voice broadcast module. Pressing the self-test button will cause the voice broadcast button to emit corresponding voice broadcasts in sequence, while multiple status indicator lights will light up in sequence.

6. The experimental apparatus for extending the simulation monitoring function according to claim 5, characterized in that, The first locomotive voltage signal includes: The DC110V signal includes a driver's cab horn sensor signal at one end, a driver's cab horn sensor signal at the other end, a manual over-phase disconnection main disconnection signal, and an automatic over-phase disconnection main disconnection signal.

7. The experimental apparatus for extending the simulation monitoring function according to claim 6, characterized in that, The second locomotive voltage signal includes: The DC24V signal includes a driver's cab horn sensor signal at one end, a driver's cab horn sensor signal at the other end, a manual over-phase disconnection main disconnection signal, and an automatic over-phase disconnection main disconnection signal.

8. The experimental apparatus for extending the simulation monitoring function according to claim 7, characterized in that, The third locomotive voltage signal includes: The DC12V signal includes a driver's cab horn sensor signal at one end and a driver's cab horn sensor signal at the other end, a manual over-phase disconnection main disconnection signal, and an automatic over-phase disconnection main disconnection signal.

9. The experimental apparatus for extending the simulation monitoring function according to claim 8, characterized in that, The test device forms four loops through a signal acquisition module, a step-down module, an optocoupler isolation module, a voice broadcast module, and four status indicator lights, which are used to process the horn sensor signal from one driver's cab, the horn sensor signal from two driver's cabs, the manual over-phase separation main disconnect signal, and the automatic over-phase separation main disconnect signal, respectively.

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