Control terminal for collecting hydraulic data of large machine operation

Abstract

The utility model provides a control terminal for large-scale machine operation hydraulic data acquisition, and relates to the technical field of power electronics, the control terminal comprises a power supply module, a lightning protection module, an industrial control computer, a GPS positioning module and an alarm lamp module, the power supply module is used for converting external 220V alternating current into 24V direct current; the lightning protection module is connected with the power supply module, and the lightning protection module is connected with an external data acquisition box; the industrial control computer is connected with the power supply module and the lightning protection module. The GPS positioning module is connected with the industrial personal computer, and the GPS positioning module is used for acquiring geographic position information of the large computer in real time; the alarm lamp module is connected with the industrial personal computer, and the alarm lamp module is used for triggering sound-light alarm when the industrial personal computer detects that the hydraulic system is abnormal. According to the utility model, the stability and the reliability of the monitoring system are improved, data can be transmitted in real time, and the efficiency and the safety of railway maintenance operation are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of data acquisition and control technology, and more specifically, to a control terminal for hydraulic data acquisition in large machine operations. Background Technology

[0002] Currently, the hydraulic systems of large railway maintenance machinery rely heavily on distributed monitoring systems. These systems typically collect and transmit hydraulic data using independent sensors and control equipment, with common monitoring parameters including pressure and temperature. However, due to the lack of a comprehensive data acquisition and monitoring system design for large machinery hydraulic systems, existing technologies have several limitations. First, existing monitoring systems often only acquire limited parameters, failing to fully cover the health status of the hydraulic system and making it difficult to accurately assess the overall operating condition. Second, traditional wired transmission methods are often susceptible to interference in complex working environments (such as high-frequency vibration and electromagnetic interference), resulting in poor data transmission reliability and potentially even interruption or loss of important data. Furthermore, most existing systems lack integrated control, have complex wiring, high maintenance costs, and cannot provide real-time fault warnings, increasing equipment downtime and reducing the efficiency and safety of railway maintenance.

[0003] Therefore, there is an urgent need for a control terminal for hydraulic data acquisition in large machinery operations to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a control terminal for hydraulic data acquisition in large machinery operations, thereby improving the aforementioned problems. To achieve this purpose, the technical solution adopted by this utility model is as follows:

[0005] This application provides a control terminal for hydraulic data acquisition in large machinery operations, including:

[0006] The system includes a power supply module, a surge protection module, an industrial control computer, a GPS positioning module, and an alarm light module. The power supply module converts external 220V AC power to 24V DC power. The surge protection module is connected to the power supply module and also to an external data acquisition box. The industrial control computer is connected to both the power supply module and the surge protection module. The GPS positioning module is connected to the industrial control computer and is used to acquire the machine's geographical location information in real time. The alarm light module is connected to the industrial control computer and is used to trigger an audible and visual alarm when the industrial control computer detects an abnormality in the hydraulic system.

[0007] Optionally, the surge protection module includes resistors R1, R2, and R3, gas discharge tubes U2, U3, U4, U5, U6, and U7, a diode D2, RS485 differential signal line A, and RS485 differential signal line B. Resistors R1 and R3 are connected in series with RS485 differential signal line A and RS485 differential signal line B, respectively. The two ends of resistor R2 are connected to RS485 differential signal line A and RS485 differential signal line B, respectively. Gas discharge tubes U2, R1, R3, U4, U5, U6, and U7 form a protection circuit, and each gas discharge tube is connected in series with resistors R1 and R3, respectively.

[0008] Optionally, when the external surge voltage exceeds a preset threshold, the protection circuit of the lightning protection module is activated and the surge energy is discharged to the ground.

[0009] Optionally, the GPS positioning module is connected to the industrial control computer via a CH340N USB-to-serial chip to convert TTL level signals to USB signals.

[0010] Optionally, the alarm module includes a surface-mount relay HF4, diodes D3 and D4, transistor Q1, resistors R4, R5, and R6, operational amplifier U10, and an alarm light ALARM. The surface-mount relay HF4 is connected in series with the +24V power supply, the alarm light ALARM, and the collector of transistor Q1. The surface-mount relay HF4 is connected in parallel with diodes D3 and D4. The emitter of transistor Q1 is grounded. The base of transistor Q1 is connected to one end of resistor R5 and one end of resistor R6. The other end of resistor R6 is grounded. The other end of resistor R5 is connected to the feedback terminal of operational amplifier U10. The input terminal of operational amplifier U10 is connected to resistor R4.

[0011] Optionally, the power module has an output voltage of 24V, a rated power of 300W, and an output current of 12.5A.

[0012] Optionally, the circuits of the GPS positioning module, lightning protection module, and alarm light module are integrated on the same circuit board.

[0013] Optionally, the lightning protection module is connected to an external data acquisition box and an industrial control computer via an RS485 bus.

[0014] Optionally, the industrial control computer is connected to the alarm light via a CH340N USB-to-serial converter chip.

[0015] The beneficial effects of this utility model are as follows:

[0016] This utility model integrates multiple modules, including a power supply module, a surge protection module, an industrial control computer, a GPS positioning module, and an alarm light module. The power supply module converts 220V AC to 24V DC to power the terminal system; the surge protection module provides effective overvoltage protection to ensure data transmission stability; the industrial control computer, through an integrated data acquisition system, monitors various data points of the hydraulic system in real time and provides fault warnings; the GPS positioning module can obtain the real-time geographical location of the working equipment, ensuring the correlation between data and the working environment; and the alarm light module provides immediate audible and visual alarms when abnormalities occur in the hydraulic system. This design, through integrated hardware and intelligent control, simplifies system wiring, reduces maintenance costs, improves the stability and reliability of the monitoring system, and enables real-time data transmission, significantly improving the efficiency and safety of railway maintenance operations.

[0017] Other features and advantages of this invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing embodiments of the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the written description, claims, and drawings. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a control terminal for hydraulic data acquisition in large machinery operations, as described in an embodiment of this utility model.

[0020] Figure 2 This is a schematic diagram of a lightning protection module circuit for a control terminal used for hydraulic data acquisition in large machinery operations, as described in an embodiment of this utility model.

[0021] Figure 3 This is a schematic diagram of the alarm module circuit of a control terminal for hydraulic data acquisition in large machinery operations, as described in an embodiment of this utility model.

[0022] Marked in the image:

[0023] 1. Power supply module; 2. Lightning protection module; 3. Industrial control computer; 4. GPS positioning module; 5. Alarm light module. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0025] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this utility model, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] Example 1:

[0027] like Figure 1 , Figure 2 and Figure 3 As shown, this embodiment provides a control terminal for hydraulic data acquisition in large machinery operations, characterized in that it includes:

[0028] The system comprises a power supply module 1, a surge protection module 2, an industrial control computer 3, a GPS positioning module 4, and an alarm light module 5. The power supply module 1 converts external 220V AC power to 24V DC power. The surge protection module 2 is connected to the power supply module 1 and also to an external data acquisition box. The industrial control computer 3 is connected to both the power supply module 1 and the surge protection module 2. The GPS positioning module 4 is connected to the industrial control computer 3 and is used to acquire the real-time geographical location information of the main unit. The alarm light module 5 is connected to the industrial control computer 3 and is used to trigger an audible and visual alarm when the industrial control computer 3 detects an abnormality in the hydraulic system.

[0029] It is understood that this utility model integrates multiple modules, including a power supply module 1, a surge protection module 2, an industrial control computer 3, a GPS positioning module 4, and an alarm light module 5. The power supply module 1 converts 220V AC power to 24V DC power to supply the terminal system; the surge protection module 2 provides effective overvoltage protection to ensure data transmission stability; the industrial control computer 3, through an integrated data acquisition system, monitors various data of the hydraulic system in real time and provides fault warnings; the GPS positioning module 4 can obtain the geographical location of the operating equipment in real time, ensuring the correlation between data and the operating environment; and the alarm light module 5 provides immediate audible and visual alarms when abnormalities occur in the hydraulic system. This design, through integrated hardware and intelligent control, simplifies system wiring, reduces maintenance costs, and improves the stability and reliability of the monitoring system. It also enables real-time data transmission, significantly improving the efficiency and safety of railway maintenance operations. The industrial control computer 3 uses an aluminum alloy die-cast shell with a dustproof and corrosion-resistant coating, achieving an IP65 protection rating, effectively resisting dust, oil, and liquid splashes in the large machine operating environment. As the core control hardware, the industrial control all-in-one computer, with its fully enclosed dustproof design, multi-size adaptability, and rich industrial interfaces, can meet the harsh environmental requirements of large machine operation sites.

[0030] The surge protection module 2 includes resistors R1, R2, and R3, gas discharge tubes U2, U3, U4, U5, U6, and U7, a diode D2, RS485 differential signal line A, and RS485 differential signal line B. Resistors R1 and R3 are connected in series with RS485 differential signal line A and RS485 differential signal line B, respectively. The two ends of resistor R2 are connected to RS485 differential signal line A and RS485 differential signal line B, respectively. Gas discharge tubes U2, R1, R3, U4, U5, U6, and U7 form a protection circuit, and each gas discharge tube is connected in series with resistors R1 and R3, respectively.

[0031] When the external surge voltage exceeds a preset threshold, the surge protection module 2 activates the protection circuit and discharges the surge energy to the ground.

[0032] It is understandable that the surge protection module 2, through the series and parallel combination of resistors R1, R2, R3 and multiple gas discharge tubes U2 to U7, forms a powerful protection circuit that can effectively suppress overvoltages caused by external lightning strikes, surge voltages, and other factors, ensuring the stable operation of the equipment. Resistors R1 and R3 are connected in series on RS485 differential signal lines A and B to limit the surge current amplitude in the signal, thereby protecting subsequent circuits from overvoltage. Resistor R2 plays an adjustment role on the RS485 differential signal line, making the signal transmission more stable and accurate. The purpose of this resistor configuration is to ensure that the transmission of differential signals is not affected by current surges and electromagnetic interference.

[0033] Gas discharge tubes U2 through U7 form a comprehensive protection circuit. These tubes have a very fast response capability; when the external voltage exceeds a set threshold, they quickly conduct and discharge the excessive voltage through the ground wire, preventing surge voltage from directly entering other parts of the system. Each gas discharge tube is connected in series with resistors R1 and R3, ensuring that the gas discharge tubes can effectively share and absorb instantaneous voltage surges, avoiding damage to the circuit.

[0034] Furthermore, diode D2 plays a protective role in the circuit. Connected in parallel with other components, it prevents circuit damage caused by reverse current flow. In summary, this surge protection module 2, through the careful design of the resistor and the gas discharge tube, can quickly and effectively protect the hydraulic data acquisition system from lightning strikes or electrical surges, reducing the risk of system failure.

[0035] In surge protection module 2, resistors R1 and R3 are 4.7Ω / 2W resistors, connected in series to the RS485 differential signal lines (A and B lines) to limit the surge current amplitude and prevent large currents from directly impacting subsequent circuits. U3 to U7 are B3D090L-C type gas discharge tubes. When the surge voltage exceeds the breakdown threshold (90V), the gas discharge tubes quickly conduct, dissipating the surge energy to ground, with a clamping voltage ≤300V. R2 is a 120Ω terminating resistor, connected in parallel across the RS485 bus to match the transmission line characteristic impedance (approximately 120Ω), reducing signal reflection and improving communication stability.

[0036] The GPS positioning module 4 is connected to the industrial control computer 3 via a CH340N USB-to-serial chip to convert TTL level signals to USB signals.

[0037] The industrial control computer 3 is connected to the alarm light via a CH340N USB-to-serial chip.

[0038] It is understandable that using the CH340N chip to convert between USB and TTL levels not only ensures stable data communication between the GPS positioning module 4 and the alarm light and the industrial control computer 3, but also improves the system's flexibility and compatibility, avoiding signal loss or connection problems caused by interface incompatibility. Furthermore, this simplified solution helps reduce the complexity and cost of system design, making the entire hydraulic data acquisition system more efficient and economical.

[0039] The alarm module includes a surface-mount relay HF4, diodes D3 and D4, transistor Q1, resistors R4, R5, and R6, operational amplifier U10, and an alarm light ALARM. The surface-mount relay HF4 is connected in series with the +24V power supply, the alarm light ALARM, and the collector of transistor Q1. The surface-mount relay HF4 is connected in parallel with diodes D3 and D4. The emitter of transistor Q1 is grounded. The base of transistor Q1 is connected to one end of resistor R5 and one end of resistor R6. The other end of resistor R6 is grounded. The other end of resistor R5 is connected to the feedback terminal of operational amplifier U10. The input terminal of operational amplifier U10 is connected to resistor R4.

[0040] Understandably, this alarm module, through reasonable component selection and circuit design, can quickly trigger the alarm light when the hydraulic system malfunctions, ensuring that operators can take timely measures to prevent the fault from escalating. The combination of relays, transistors, operational amplifiers, and resistors ensures the stability and reliability of the circuit, preventing circuit damage caused by component failure or reverse current. Furthermore, the protective function of diodes greatly improves the system's anti-interference capability and durability, ensuring system stability and alarm accuracy during long-term operation. Through this module's design, the system can quickly and accurately respond to and provide feedback on the hydraulic system's operating status, improving the overall monitoring system's response efficiency and safety.

[0041] The power module 1 has an output voltage of 24V, a rated power of 300W, and an output current of 12.5A.

[0042] Understandably, the design of power module 1 not only ensures stable voltage output but also achieves reliable system power supply through high power output and high current support. Its 300W rated power allows the module to support multiple modules operating simultaneously under various working conditions without easily experiencing overload or insufficient power supply issues. This design enhances system stability and anti-interference capabilities, especially in harsh working environments, ensuring continuous operation of the hydraulic data acquisition system and providing reliable data acquisition and processing functions. Furthermore, the 12.5A output current design allows power module 1 to support the expansion of more additional modules, providing strong flexibility.

[0043] Furthermore, the power module 1 adopts a silent potting upgrade process, which enhances the protective performance of the power module 1 and improves its dustproof, moisture-proof and corrosion-proof capabilities, making it suitable for the harsh operating environment of large machines.

[0044] The circuits of the GPS positioning module 4, the lightning protection module 2, and the alarm light module 5 are integrated on the same circuit board.

[0045] Understandably, the technical benefits of integrated circuit board design are primarily reflected in improved system reliability, anti-interference capabilities, ease of installation, and maintenance efficiency. By integrating the GPS positioning module 4, lightning protection module 2, and alarm light module 5 onto the same circuit board, the system not only effectively reduces wiring complexity and external connection errors but also demonstrates higher stability and long-term reliable operation in practical applications. Furthermore, this integrated design significantly improves the coordination efficiency between modules, enabling the system to quickly respond to changes in the external environment and ensuring real-time monitoring and alarm functions for the hydraulic system.

[0046] The lightning protection module 2 is connected to the external data acquisition box and the industrial control computer 3 via an RS485 bus.

[0047] It is understood that the connection between the surge protection module 2, the data acquisition box, and the industrial control computer 3 is achieved through an RS485 bus. This allows the system to maintain efficient and stable communication performance while effectively preventing the impact of external electrical interference. The integrated protection of the surge protection module 2 not only improves the reliability of the entire system but also ensures the continuous stability of data acquisition and transmission under extreme environments. The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0048] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A control terminal for hydraulic data acquisition in large machinery operations, characterized in that, include: Power module (1), the power module (1) is used to convert external 220V AC power into 24V DC power; Lightning protection module (2), which is connected to the power module (1) and to an external data acquisition box; An industrial control computer (3) is connected to the power supply module (1) and the lightning protection module (2) respectively; GPS positioning module (4), which is connected to the industrial control computer (3), is used to obtain the geographical location information of the main machine in real time; An alarm light module (5) is connected to the industrial control computer (3). The alarm light module (5) is used to trigger an audible and visual alarm when the industrial control computer (3) detects an abnormality in the hydraulic system.

2. The control terminal for hydraulic data acquisition in large machinery operation according to claim 1, characterized in that... The lightning protection module (2) includes resistors R1, R2, and R3, gas discharge tubes U2, U3, U4, U5, U6, and U7, a diode D2, RS485 differential signal line A, and RS485 differential signal line B. Resistors R1 and R3 are connected in series on RS485 differential signal line A and RS485 differential signal line B, respectively. The two ends of resistor R2 are connected to RS485 differential signal line A and RS485 differential signal line B, respectively. Gas discharge tubes U2, R1, R3, U4, U5, U6, and U7 form a protection circuit, and each gas discharge tube is connected in series with resistors R1 and R3, respectively.

3. A control terminal for hydraulic data acquisition in large machinery operations according to claim 2, characterized in that... When the external surge voltage exceeds a preset threshold, the lightning protection module (2) activates the protection circuit and discharges the surge energy to the ground.

4. A control terminal for hydraulic data acquisition in large machinery operations according to claim 1, characterized in that... The GPS positioning module (4) is connected to the industrial control computer (3) through a USB to serial port chip of model CH340N, which is used to realize the conversion between TTL level and USB signal.

5. A control terminal for hydraulic data acquisition in large machinery operations according to claim 1, characterized in that... The alarm module includes a surface-mount relay HF4, diodes D3 and D4, transistor Q1, resistors R4, R5, and R6, operational amplifier U10, and an alarm light ALARM. The surface-mount relay HF4 is connected in series with the +24V power supply, the alarm light ALARM, and the collector of transistor Q1. The surface-mount relay HF4 is connected in parallel with diodes D3 and D4. The emitter of transistor Q1 is grounded. The base of transistor Q1 is connected to one end of resistor R5 and one end of resistor R6. The other end of resistor R6 is grounded. The other end of resistor R5 is connected to the feedback terminal of operational amplifier U10. The input terminal of operational amplifier U10 is connected to resistor R4.

6. A control terminal for hydraulic data acquisition in large machinery operations according to claim 1, characterized in that... The power module (1) has an output voltage of 24V, a rated power of 300W, and an output current of 12.5A.

7. A control terminal for hydraulic data acquisition in large machinery operations according to claim 1, characterized in that... The circuits of the GPS positioning module (4), lightning protection module (2) and alarm light module (5) are integrated on the same circuit board.

8. A control terminal for hydraulic data acquisition in large machinery operations according to claim 1, characterized in that... The lightning protection module (2) is connected to the external data acquisition box and the industrial control computer (3) via RS485 bus.

9. A control terminal for hydraulic data acquisition in large machinery operations according to claim 1, characterized in that... The industrial control computer (3) is connected to the alarm light through a USB to serial port chip of model CH340N.

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