Derailing control device for tamping wagon
The tamping car derailment control device uses a signal acquisition unit and microprocessor to detect derailment, and uses a movement control module and an early warning module to prevent derailment. This solves the problem of tamping car derailment in complex environments and improves the safety and reliability of the tamping car.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENHUA RAIL & FREIGHT WAGONS TRANSPORT
- Filing Date
- 2025-03-26
- Publication Date
- 2026-05-05
AI Technical Summary
The existing tamping machine operation safety interlocking control system lacks a dedicated safety interlocking protection device for the measuring trolley derailment. This makes it easy for the tamping machine to experience problems such as inconsistent tracks between the measuring trolley and the main trolley or derailment under complex conditions such as harmful gaps in the turnout area and track size errors.
A derailment control device for a tamping car was designed, including a derailment control module, a movement control module, an early warning module, and a safety disconnect switch. The device uses a signal acquisition unit and a microprocessor to determine whether the tamping car has derailed, and controls the movement of the tamping car through the movement control module. The early warning module outputs an early warning signal, and the safety disconnect switch cuts off the connection in an emergency to prevent derailment accidents.
It effectively prevents tamping machines from derailing, ensures their safe operation, reduces mechanical damage and personal injury caused by derailment, and improves the safety and reliability of railway maintenance operations.
Smart Images
Figure CN224203594U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tamping machine technology, and in particular to a tamping machine derailment control device. Background Technology
[0002] Tamping machines are key pieces of equipment in the mechanized maintenance of railway lines, widely used due to their high precision and efficiency. The main function of a tamping machine is to ensure the stability and smoothness of the railway tracks by tamping them, thereby improving the safety and comfort of train operation.
[0003] Although tamping machines play a vital role in railway maintenance, existing tamping machine operation safety interlocking control systems have a significant deficiency: they lack a dedicated safety interlocking protection device for the measuring trolley derailment. This leads to frequent problems during actual tamping operations, such as misalignment between the measuring trolley and the main trolley, or even derailment of the measuring trolley due to complex on-site conditions like harmful gaps in turnout areas and track dimensional errors.
[0004] Therefore, how to prevent the tamping machine from derailing has become an urgent problem to be solved. Utility Model Content
[0005] This utility model provides a tamping car derailment control device that can prevent tamping car derailment accidents from occurring.
[0006] This utility model provides a tamping car derailment control device, including: a derailment control module, a movement control module, an early warning module, and a safety isolation switch;
[0007] The derailment control module includes a signal acquisition unit and a microprocessor. The signal acquisition unit is connected to the microprocessor. The signal acquisition unit is used to collect data corresponding to the tamping car, and the microprocessor is used to determine whether the tamping car has derailed based on the position data of the tamping car.
[0008] The movement control module is connected to the derailment control module, and the movement control module is used to control the movement of the tamping machine;
[0009] The early warning module is connected to the derailment control module. The early warning module is used to output an early warning signal when the tamping car derails.
[0010] One end of the safety disconnect switch is connected to the derailment control module, and the other end is connected to the motion control module. The safety disconnect switch is used to connect or disconnect the connection between the derailment control module and the motion control module.
[0011] In one implementation, the signal acquisition device includes an NPN inductive switch.
[0012] In one implementation, the signal acquisition device also includes a displacement sensor.
[0013] In one implementation, the signal acquisition unit also includes a tilt sensor.
[0014] In one embodiment, the tamping car derailment control device further includes a conduction relay and a main control relay;
[0015] The movement control module and the derailment control module are connected via a master control relay;
[0016] The signal acquisition unit consists of multiple units, each connected to the main control relay via a corresponding on relay.
[0017] In one embodiment, the derailment control module further includes an emergency braking unit connected to the microprocessor, which is used to control the tamping machine to stop running.
[0018] In one embodiment, the derailment control module includes a signal filtering module, one end of which is connected to a signal acquisition unit, and the other end of which is connected to a microprocessor.
[0019] In one embodiment, the derailment control module further includes a data fusion module, one end of which is connected to the signal filtering module and the other end of which is connected to a microprocessor. The data fusion module is used to comprehensively analyze data from multiple signal acquisition devices.
[0020] In one implementation, the warning module includes an indicator light for outputting a warning light.
[0021] In one implementation, the warning module further includes an audible alarm for outputting a warning sound.
[0022] Compared with existing technologies, the advantages of this invention are that the derailment control module is the core of the entire device, responsible for collecting the status data of the tamping machine and determining whether the tamping machine has derailed based on this data. It uses a signal acquisition device to collect data such as the position and attitude of the tamping machine, including displacement, tilt angle, and acceleration. A microprocessor receives the data from the signal acquisition device to determine if the tamping machine has derailed. If derailment is detected, the microprocessor triggers the warning module and the movement control module to ensure the tamping machine stops. Based on the received signal, the movement control module controls the tamping machine's travel motor or braking system to stop the machine. Based on the received signal, the warning module outputs a warning signal, such as illuminating an indicator light or emitting an audible alarm, to remind the operator that the tamping machine has derailed and emergency measures are required. Under normal circumstances, the safety disconnect switch is in the conducting state, and signal transmission between the derailment control module and the movement control module is normal. When the derailment control module determines that the tamping machine has derailed, the safety disconnect switch can be manually or automatically switched to the disconnected state, cutting off the connection between the derailment control module and the movement control module to prevent serious derailment of the tamping machine. Attached Figure Description
[0023] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.
[0024] Figure 1 This is a schematic diagram of the structure of a tamping car derailment control device provided by this utility model;
[0025] Figure 2 This is a schematic diagram of another tamping car derailment control device provided by this utility model;
[0026] Figure 3 This is a circuit diagram of a tamping machine derailment control device provided by this utility model.
[0027] Figure label:
[0028] Derailment control module 10; signal acquisition unit 11; signal filtering module 12; data fusion module 13; microprocessor 14; emergency braking unit 15;
[0029] Mobile control module 20;
[0030] Early warning module 30; indicator light 31; audible alarm 32;
[0031] Safety disconnect switch 40. Detailed Implementation
[0032] The present invention will be further described below with reference to the accompanying drawings.
[0033] Figure 1This is a schematic diagram of the structure of a tamping car derailment control device provided by this utility model.
[0034] like Figure 1 As shown, the tamping machine derailment control device includes: a derailment control module 10, a movement control module 20, an early warning module 30, and a safety isolation switch 40.
[0035] The derailment control module 10 includes a signal acquisition unit 11 and a microprocessor 14. The signal acquisition unit 11 is connected to the microprocessor 14. The signal acquisition unit 11 is used to acquire data corresponding to the tamping machine, and the microprocessor 14 is used to determine whether the tamping machine has derailed based on the position data corresponding to the tamping machine.
[0036] The derailment control module 10 is the core component of the entire device. It is responsible for collecting the status data of the tamping machine and determining whether the tamping machine has derailed based on this data. The signal acquisition unit 11 collects data such as the position and attitude of the tamping machine, and the microprocessor 14 analyzes and processes this data to determine whether the tamping machine has derailed.
[0037] The signal acquisition unit 11 is part of the derailment control module 10 and is used to collect various status data of the tamping vehicle.
[0038] In one embodiment, the signal acquisition unit 11 includes an NPN type inductive switch. The NPN type inductive switch is used to detect whether the tamping car is in contact with the rail, and when the tamping car derails, the inductive switch will detect a signal change.
[0039] In one embodiment, the signal acquisition unit 11 further includes a displacement sensor. The displacement sensor is used to detect changes in the displacement of the tamping machine, providing accurate position data.
[0040] In one embodiment, the signal acquisition unit 11 further includes a tilt sensor. The tilt sensor is used to detect the tilt angle of the tamping machine and determine whether the tamping machine has tilted or derailed.
[0041] It can be understood that the signal acquisition unit 11 collects data such as the position and attitude of the tamping machine through various sensors (such as NPN type inductive switches, displacement sensors, tilt sensors, etc.) and transmits these data to the microprocessor.
[0042] The signal acquisition unit 11 provides real-time status data of the tamping machine, which provides a basis for the microprocessor's judgment and ensures the accuracy and timeliness of derailment detection.
[0043] The microprocessor 14 is the core component of the derailment control module 10. It is responsible for processing the data transmitted from the signal acquisition unit 11 and making derailment judgments. The microprocessor 14 can be a microcontroller, DSP, or other embedded processor. It has data processing and control functions, can analyze the acquired data in real time, promptly judge the derailment status of the tamping machine, trigger warning and braking signals, and ensure the safe operation of the tamping machine.
[0044] As examples rather than limitations, the following methods of judgment are possible.
[0045] 1. Displacement data judgment
[0046] When the tamping machine is running normally on the track, the displacement data collected by the displacement sensor should be consistent with the geometry of the track. If the displacement data shows abnormal changes, such as a sudden increase or decrease, exceeding the preset normal range, the microprocessor 14 determines that the tamping machine may derail.
[0047] Assuming the tamping machine is traveling on a straight track, the displacement data collected by the displacement sensor should change uniformly. If a sudden, sharp increase in displacement data is detected, exceeding the normal range, the microprocessor 14 determines that the tamping machine may have derailed.
[0048] 2. Determining the tilt angle data
[0049] When the tamping machine is running normally on the track, the tilt angle collected by the tilt sensor should be within the preset normal range. If the tilt angle data changes abnormally, such as suddenly increasing and exceeding the preset normal range, the microprocessor 14 determines that the tamping machine may derail.
[0050] Assuming the tamping machine is traveling on a straight track, the tilt angle collected by the tilt sensor should be within ±5°. If the tilt angle suddenly increases to ±15°, exceeding the normal range, the microprocessor 14 determines that the tamping machine may have derailed.
[0051] 3. Acceleration data analysis
[0052] When the tamping machine is running normally on the track, the acceleration data collected by the acceleration sensor should be within the preset normal range. If the acceleration data shows abnormal changes, such as a sudden increase or decrease, exceeding the preset normal range, the microprocessor 14 determines that the tamping machine may derail.
[0053] Assuming the tamping machine is traveling on a straight track, the acceleration data collected by the acceleration sensor should be between 0.5g and 1.5g. If the acceleration suddenly increases to 3g, exceeding the normal range, the microprocessor 14 determines that the tamping machine may derail.
[0054] 4. Comprehensive judgment
[0055] The microprocessor 14 can integrate data from multiple sensors to make judgments, thereby improving the accuracy and reliability of derailment detection.
[0056] The derailment control module 10 can detect the derailment status of the tamping car in a timely manner, providing a basis for subsequent early warning and braking, and preventing the tamping car from continuing to run and causing more serious accidents.
[0057] The movement control module 20 is connected to the derailment control module 10, and the movement control module 20 is used to control the movement of the tamping machine.
[0058] The movement control module 20 receives signals from the derailment control module 10 and controls the tamping machine's travel motor or braking system according to the signals to start, stop, and turn the tamping machine.
[0059] In one embodiment, the motion control module 20 and the derailment control module 10 are connected via a master control relay; the signal acquisition unit 11 includes multiple units, and each of the multiple signal acquisition units 11 is connected to the master control relay via a corresponding conduction relay.
[0060] Based on the judgment result of the derailment control module 10, the movement control module 20 is used to control the movement of the tamping machine to ensure the safe movement of the tamping machine during operation and prevent accidents caused by derailment.
[0061] The early warning module 30 is connected to the derailment control module 10. The early warning module 30 is used to output an early warning signal when the tamping car derails.
[0062] The early warning module 30 receives the signal from the derailment control module 10 and outputs an early warning signal, such as light or sound, when a derailment is detected.
[0063] In one embodiment, the warning module 30 includes an indicator light 31, which is used to output a warning light.
[0064] In one embodiment, the warning module 30 further includes a sound alarm 32, which is used to output a warning sound.
[0065] The early warning module 30 can promptly alert operators when the tamping machine derails, allowing them to take emergency measures to prevent the accident from escalating.
[0066] One end of the safety disconnect switch 40 is connected to the derailment control module 10, and the other end of the safety disconnect switch 40 is connected to the motion control module 20. The safety disconnect switch 40 is used to connect or disconnect the connection between the derailment control module 10 and the motion control module 20.
[0067] The safety disconnect switch 40 is a manually or automatically controlled switch that can ensure the rapid disconnection between the derailment control module 10 and the movement control module 20 in an emergency, ensuring the safety of the tamping machine and preventing accidents caused by control signal failure.
[0068] Figure 2 This is a schematic diagram of another tamping car derailment control device provided by this utility model.
[0069] In one embodiment, the derailment control module 10 includes a signal filtering module 12. One end of the signal filtering module 12 is connected to the signal acquisition unit 11, and the other end is connected to the microprocessor 14. The signal filtering module 12 is used to filter the data transmitted from the signal acquisition unit 11 to remove noise and interference signals. That is, it processes the acquired data through a filtering algorithm to remove high-frequency noise and interference signals, thereby improving the accuracy and reliability of the data.
[0070] The following are some common filtering algorithms.
[0071] 1. Moving Average Filter
[0072] The signal is smoothed by calculating its average value over a period of time, thus removing high-frequency noise. For each data point, the average of several data points before and after it is taken as the filtered value.
[0073] 2. Median Filter
[0074] Data smoothing is achieved by calculating the median of the signal over a period of time, which is suitable for removing impulse noise. For each data point, the median of several data points before and after it is taken as the filtered value.
[0075] Other common filtering methods include low-pass filtering, Gaussian filtering, and Kalman filtering. The appropriate method can be selected based on the specific circumstances, and no specific method is specified here.
[0076] The signal filtering module 12 can improve the quality of the signal transmitted from the signal acquisition unit 11, ensure that the data received by the microprocessor 14 is accurate and reliable, and improve the accuracy and reliability of derailment detection.
[0077] In one embodiment, the derailment control module 10 further includes a data fusion module 13, one end of which is connected to the signal filtering module 12 and the other end of which is connected to the microprocessor 14. The data fusion module 13 is used to comprehensively analyze the data from multiple signal acquisition devices 11.
[0078] The data fusion module 13 is used to comprehensively analyze the data from multiple signal acquisition devices 11 to improve the accuracy and reliability of detection.
[0079] The data fusion module 13 receives data from multiple signal acquisition devices 11 and performs comprehensive analysis on this data through a data fusion algorithm to improve the accuracy and reliability of detection.
[0080] In one implementation, data preprocessing is performed, including data normalization to convert data from different sensors to the same units and ranges for easier subsequent processing. Data alignment ensures that data from different sensors are aligned spatially and temporally, which can be achieved through interpolation or resampling.
[0081] Select a preset data fusion algorithm to fuse the preprocessed data, such as weighted average, Kalman filter, particle filter, neural network, etc.
[0082] By comprehensively analyzing data from multiple sensors, the accuracy and reliability of derailment detection are improved, ensuring the safe operation of the tamping machine.
[0083] In one embodiment, the derailment control module 10 further includes an emergency braking unit 15, which is connected to the microprocessor 14 and is used to control the tamping machine to stop running.
[0084] The emergency braking unit 15 controls the on / off state of the motion control module 20 through an emergency braking relay (or multiple relays).
[0085] For example, during normal operation, the emergency brake relay coil is not energized, the contacts are closed, power is supplied normally, and the movement control module 20 operates normally. If derailment is detected, a low-level signal is output, the emergency brake relay coil is energized, the contacts open, the movement control module 20 is disconnected, and the tamping machine stops running.
[0086] For example, if the operator manually triggers the emergency brake switch, the emergency brake relay coil will be energized, the contacts will open, the movement control module 20 will be disconnected, and the equipment will stop operating.
[0087] The emergency braking unit 15 quickly stops the tamping car when it derails, preventing the accident from escalating and ensuring the safety of the tamping car and the operators.
[0088] Figure 3 This is a circuit diagram of a tamping machine derailment control device provided by this utility model.
[0089] like Figure 3 As shown, the circuit structure includes a work travel control signal XB5, an alarm indication circuit, a safety isolation switch, and a derailment control circuit.
[0090] Among them, V29, V23, and V22 are the terminal numbers of the retraction and extension switches of each measuring trolley (taking the CDC-16 turnout tamping trolley as an example, the wire numbers are different for other models); IND is an NPN normally open inductive switch, and S is its signal output terminal; relays A, B, and C are the corresponding conducting relays; relay D is the master control relay; relay E is the safety isolation relay. All relays are integrated on a relay board with the model number EL-T509601.
[0091] The XB5 operating travel control signal is a necessary condition in the overall travel signal logic circuit of the tamping machine's program control system. The signal encoding varies depending on the machine model; this example uses the CDC-16 turnout tamping machine with a simulated board. Once the XB5 operating travel control signal is connected to the TB terminal, the equipment is always ready for operation, and its on / off function is controlled by the derailment control circuit.
[0092] The alarm indicator circuit consists of several 24V red indicator lights. When each trolley is in operation and in the correct position, the red indicator lights are off and do not serve as a warning. When any measuring trolley deviates from its position or derails, the induction switch installed on the measuring trolley does not output an electrical signal, the corresponding relay is activated, the alarm indicator is turned on, and the red indicator light is lit, notifying the operator to confirm and check the position of the measuring trolley.
[0093] The safety disconnect switch is a manual two-position changeover disconnect switch, which is suitable for connecting the safety disconnect relay E. In the event of a system failure, the control function of the entire system can be cut off at any time, while retaining the original vehicle functions.
[0094] The derailment control circuit consists of several inductive switches installed on the measuring trolleys and a corresponding number of relays connected in series. When the equipment is in operation mode, the inductive switch starts to work every time the operator puts down a measuring trolley. Only when the inductive switch senses the rail does it assume that the trolley is in the correct position and outputs a low voltage, and the corresponding relay is energized. This process continues until the main power supply is finally sent to the final master control relay (relay D in the figure), which connects the travel control signal XB5.
[0095] Relays are divided into conduction relays, such as... Figure 3 The relays are A, B, and C; the master control relay is D; and the safety isolation relay is E. Depending on the vehicle model, the number of conducting relays, corresponding sensor switches, and alarm indicator lights can be added indefinitely, making it universally applicable.
[0096] like Figure 3As shown, V29, V23, and V22 are the terminal numbers of the retraction and extension switches of each measuring trolley (taking the CDC-16 turnout tamping trolley as an example; these terminal numbers will differ for other models). They serve as the main power supply for driving the conduction relays. Each conduction relay A, B, and C has a set of normally open and normally closed contacts. The normally open contacts are used to connect the 24V power supply, and the normally closed contacts are used for the alarm indication circuit.
[0097] The IND is an NPN type normally open contact-type inductive switch. When it approaches a metal object, its signal line S terminal outputs a low level. This characteristic is used as a signal acquisition device to control whether the conducting relay is activated. The number of inductive switches can be freely increased or decreased according to different vehicle models and the number of detection points, and the number of inductive switches is the same as the number of measuring carts.
[0098] Using an NPN type normally open inductive switch as a signal acquisition device, when each measuring trolley is in the correct position, it can sense the rail, output a low voltage, and activate the control relay. This causes the normally open contact of the activation relay to close, and the normally closed contact to open. At this time, the corresponding red alarm indicator controlled by the normally closed contact is open, and no red alarm is displayed. Simultaneously, after the normally open contact closes, power is supplied to the main control relay. All the activation relays of the measuring trolleys are connected in series. After all are activated, the main control relay is energized, connecting the XB5 travel control signal. At this time, the equipment has the working travel function. The safety isolation relay is used because... When the input and output voltages are the same, it has no effect. To ensure that the equipment has a hydraulic travel function while the measuring trolley is retracted after the operation is completed, when the rear tensioning trolley is retracted, V22 outputs a low voltage, a voltage difference is generated across the safety isolation relay, the safety isolation relay is activated, and the travel control signal is connected, and the equipment functions normally. When the above-mentioned derailment sensing system malfunctions during operation, after confirming that the measuring system is in the correct position, the operator can manually operate the two-position safety isolation switch to energize the safety isolation relay, connect the XB5 travel control signal, and maintain the original function of the equipment.
[0099] By cleverly connecting inductive switches, relays, indicator lights, and safety isolation switches, the deformation and damage to the measurement system caused by the failure of personnel to detect derailment of the measuring trolley during operation are fundamentally avoided. This fills the gap in the existing tamping machine measuring trolley detection technology. Moreover, the absence of high-power electrical appliances eliminates the safety hazards caused by insufficient circuit power or overheating, effectively improving the safety performance of large railway maintenance machinery.
[0100] The final master control relay D is responsible for activating the final travel control signal XB5. By controlling the activation state of XB5, the movement of the equipment is ultimately controlled, achieving safe operation control of large railway maintenance machinery. The safety disconnect switch is a safety switch that allows manual disconnection of control in emergency situations, while retaining the original operating function. It is worth noting that inductive switches and relays can be added arbitrarily depending on the different train models and detection points, demonstrating universal applicability and providing a feasible approach for safety control across various train models.
[0101] When the mechanical vehicle is in operation, after the operator turns on the lowering switch of the measuring trolley, terminals V29, V23, and V22 are connected, and a 24V voltage is output. The inductive switches of each trolley are energized and work. At this time, only when the trolley is accurately positioned on the rail will the S signal line of the IND inductive switch output a low voltage, which will activate relays A, B, and C. The normally open contacts used for conduction will close, and the normally closed contacts used for alarm indication will open, extinguishing the alarm light. The 24V power supply is then sent to the main control relay D, which will close its normally open contact, connecting the travel control signal XB5. At this time, the equipment will operate normally.
[0102] During operation, if any of the measuring trolley positions deviate, the inductive switch S signal will not output a low voltage, the conducting relay will lose power, the power supply to the main control relay will be disconnected, the XB5 travel control signal will be cut off, the equipment will automatically stop, and the corresponding alarm indicator light will illuminate to inform the operator of the corresponding trolley abnormality.
[0103] The safety isolation relay serves two purposes: first, it ensures the mechanical vehicle can still move even when the measuring trolley is not lowered into operation; second, in case of a fault in the inductive switch or circuit, the two-position transfer isolation switch can be manually operated in an emergency to energize the safety isolation relay and activate the XB5 travel control signal.
[0104] In summary, by using circuit interlocking, the deformation of the measurement system caused by the failure of personnel to detect abnormalities in the measuring device in a timely manner is fundamentally avoided, thereby improving the operational safety of large railway maintenance machinery. At the same time, it has universal applicability and fills the gap in safety monitoring of the measurement system under operating conditions.
[0105] This solution can cut off the moving power of large railway track maintenance machinery in case of derailment or incorrect trolley path during operation. Simultaneously, the system's alarm indication function immediately alerts operators to check and confirm the affected trolley. The safety isolation switch designed in this system is used to cut off the system's control function after a failure, without affecting the original vehicle's operation. In summary, this system design has three functions: safety control, alarm indication, and safety isolation. Each function works in concert, filling the gap in existing tamping machine trolley derailment protection systems and completely solving the technical problem of damage to the measurement system caused by trolley derailment.
[0106] Although the present invention has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A tamping car derailment control device, characterized in that, include: Derailment control module, movement control module, early warning module, safety disconnect switch; The derailment control module includes a signal acquisition unit, a signal filtering module, a data fusion module, and a microprocessor. The signal acquisition unit is connected to the microprocessor and is used to acquire the position data of the tamping car relative to the track. One end of the signal filtering module is connected to the signal acquisition unit, and the other end of the signal filtering module is connected to the microprocessor. One end of the data fusion module is connected to the signal filtering module, and the other end of the data fusion module is connected to the microprocessor. The microprocessor is used to determine whether the tamping car has derailed based on the position data. The movement control module is connected to the derailment control module, and the movement control module is used to control the movement of the tamping machine. The early warning module is connected to the derailment control module, and the early warning module is used to output an early warning signal when the tamping car derails. One end of the safety disconnect switch is connected to the derailment control module, and the other end of the safety disconnect switch is connected to the motion control module. The safety disconnect switch is used to connect or disconnect the connection between the derailment control module and the motion control module.
2. The tamping car derailment control device according to claim 1, characterized in that, The tamping car derailment control device also includes a conduction relay and a main control relay; The motion control module and the derailment control module are connected via the master control relay; The signal acquisition device includes multiple devices, and each of the multiple signal acquisition devices is connected to the main control relay through a corresponding conduction relay.
3. The tamping car derailment control device according to claim 1, characterized in that, The derailment control module also includes an emergency braking unit, which is connected to the microprocessor and is used to control the tamping machine to stop running.
4. The tamping car derailment control device according to claim 2, characterized in that, The signal acquisition device includes an NPN inductive switch.
5. The tamping car derailment control device according to claim 2, characterized in that, The signal acquisition device includes a displacement sensor.
6. The tamping car derailment control device according to claim 2, characterized in that, The signal acquisition device includes a tilt sensor.
7. The tamping car derailment control device according to any one of claims 1-6, characterized in that, The warning module includes an indicator light, which is used to output warning light.
8. The tamping car derailment control device according to claim 7, characterized in that, The warning module also includes an audible alarm, which is used to output a warning sound.