Multifunctional box for track inspection system

Abstract

This utility model discloses a multi-functional enclosure for a track inspection system. It includes a chassis, a power input control component, a power module component, a function card component, and a control module component. The power input control component is located on the front left side of the chassis and is used for power input control and overcurrent protection of the input power. The power module component is located at the rear of the chassis and is used for voltage conversion, supplying power to internal components, power output ports, and connections to the track inspection beam. The function card components are located in the middle and front of the chassis and are used for communication, serving as a communication bridge between the inspection beam and the electric train system. The control module components are located on the left and right sides of the chassis and provide intelligent control of the input and output power. This multi-functional track inspection enclosure integrates all the equipment within the track inspection vehicle into a standard 3U enclosure, achieving high integration, lightweight design, and automation, adapting to complex, variable, and space-constrained installation environments.

Description

Technical Field

[0001] This utility model belongs to the field of track inspection, specifically a multi-functional box for track inspection system. Background Technology

[0002] In recent years, rail transit has gradually become a major mode of urban passenger transport. To ensure the safety of subway operations and improve the comfort and safety of urban rail transit, the demand for track inspection data is becoming increasingly frequent. Traditional track inspection vehicle systems involve closing the entire line for inspection after the trains have stopped and returned to the depot. Furthermore, these operations require advance approval, taking up track maintenance or repair time. Additionally, manual operation is required, typically allowing inspections only once a month or every two weeks. Therefore, these systems are gradually failing to meet the increasingly frequent inspection and maintenance needs of track lines.

[0003] The electric train-mounted track inspection system, installed on the electric train, automatically inspects the subway line while the train is carrying passengers during daytime operation. The inspection time and number of round trips can be consistent with the electric train's passenger operation. At the same time, the inspection system has the advantages of automatic operation, automatic mileage correction, automatic uploading of defect and alarm data, and intelligent inspection control. Therefore, in the field of subway track inspection, it is gradually replacing the traditional track engineering vehicle inspection system.

[0004] Traditional rail engineering vehicles have a separate inspection compartment. The inspection system equipment is installed in a dedicated cabinet within the inspection compartment, consisting of a communication cabinet, power supply cabinet, control cabinet, and processing host, with a total equipment height of 12U or greater. Both the cabinet equipment and the processing host are rack-mounted, with no height restrictions (1-6U) and minimal installation depth limitations (<1m). All electrical connections are located at the rear of the equipment. Power is supplied by AC220V. Control buttons are located at the front and require manual operation. The processing host is equipped with a monitor, keyboard, and mouse on the control panel, requiring manual monitoring and operation during system inspections. Data transmission between internal sub-devices is via Ethernet, and system inspection results are manually copied using a USB flash drive or external hard drive.

[0005] Since electric train carriages need to be used for passenger transport, the equipment can only be installed in electrical cabinets at both ends of the carriage (which also contain other onboard equipment) or in electrical boxes under the seats. The installation space is limited and manual operation is not possible. Therefore, there are limitations in terms of installation, electrical connection, power supply, control and data communication. The current inspection system's in-vehicle equipment can no longer meet the requirements. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of traditional inspection systems, such as the inability to install, automatically operate, and automatically upload data in the vehicle, and to provide a multi-functional box for track inspection systems. Based on the CPCI architecture design, it integrates the equipment in the track inspection vehicle (except for the processing host) into a standard 3U box, which meets the various detection functions of the inspection system. At the same time, it is highly integrated, lightweight, automated, and intelligent, so as to adapt to the installation and application environment of electric trains.

[0007] The technical solution adopted in this utility model is: a multi-functional box for a track inspection system, including a chassis, a power input control component, a power module component, a function card component, and a control module component; the power input control component is fixed to the front left side of the chassis and is used for power input control and overcurrent protection of the input power; the power module component is fixed to the rear of the chassis, and its input end is electrically connected to the output end of the power input control component, receiving DC110V power output from the power input control component, converting DC110V to DC24V and outputting it to power the internal components of the chassis, the power output port, and the track inspection beam; the function card component is installed in the middle and front of the chassis and is electrically connected to the output end of the power module component to realize communication and control functions; the control module component is symmetrically distributed on the inner walls of the left and right sides of the chassis and is electrically connected to the output end of the power module component to control the output of DC110V and DC24V power.

[0008] Furthermore, the power input control component includes a power input module and an overcurrent protection component; the power input module includes a power input port and a rocker switch, the power input port adopts a quick-connect solderless industrial connector; the overcurrent protection component is connected in series at the rear end of the power input port.

[0009] Furthermore, the power module assembly includes a DC-DC converter, a wiring module one, and a wiring module two; the input terminal of the DC-DC converter (31) receives a DC110V input from the power input control component and converts it into a DC24V output; the input terminal of the wiring module one is connected to the output terminal of the overcurrent protection component, and the output terminal is connected to the DC-DC converter and the three-pole contactor one, distributing the DC110V power output by the overcurrent protection component to the DC-DC converter and the three-pole contactor one; the input terminal of the wiring module two is connected to the output terminal of the DC-DC converter, and the output terminal is connected to the internal components of the chassis and the three-pole contactor two, distributing the converted DC24V power to the internal components of the chassis and the three-pole contactor two.

[0010] Furthermore, the power module assembly also includes fan module one and fan module two. Fan module one is installed on the rear of the left inner wall of the chassis and serves as an air intake window; fan module two is installed on the rear of the right inner wall of the chassis and serves as an air exhaust window, enabling air convection for air cooling of the chassis interior.

[0011] Furthermore, the functional card assembly includes a communication backplane, a speed card module, a CPU card module, and a communication card module; the communication backplane is vertically fixed to the middle crossbeam of the chassis, and provides power and communication interconnection to the communication card module through a backplane connector; the control ports of fan module one, fan module two, wiring module one, and wiring module two are connected through PCB terminal blocks; the speed card module, CPU card module, and communication card module are plugged into the communication backplane through the backplane connector and fixed to the front crossbeam with bolts.

[0012] Furthermore, the communication card module includes:

[0013] The 4G / 5G SIM card module adopts a full network compatible 4G / 5G module and supports dual network ports + WIFI interface type;

[0014] The MVB plug-in module adopts a dual-port redundant design with male and female interfaces and a HARTING9MVB railway connector.

[0015] TRDP plug-in module adopts dual network port redundancy and M12-D type coded connector;

[0016] The switch card module provides 8×100M network ports.

[0017] Furthermore, the control module assembly includes a three-pole contactor one, a three-pole contactor two, an output panel module one, and an output panel module two. The input terminal of the three-pole contactor one is connected to the wiring module one, the output terminal is connected to the output panel module one, and the control terminal is connected to the corresponding PCB terminal block on the communication backplane, thereby realizing intelligent control of the DC110V power output. The input terminal of the three-pole contactor two is connected to the wiring module two, the output terminal is connected to the output panel module two, and the control terminal is connected to the corresponding PCB terminal block on the communication backplane, thereby realizing intelligent control of the DC24V power output.

[0018] Furthermore, the side panel of the chassis is provided with heat dissipation and ventilation holes.

[0019] Furthermore, the chassis is made of high-strength aluminum alloy, and the middle crossbeam of the chassis is a reinforced double-hole crossbeam.

[0020] The beneficial effects of this utility model are as follows: The main body of the equipment in the multi-functional box of the track inspection system disclosed in this utility model adopts a CPCI architecture, making the equipment more integrated and miniaturized. High integration is achieved through a partitioned layout, compressing the traditional 12U equipment into a 3U chassis. While meeting the system functions, the size of the functional box is greatly reduced, adapting to the limited installation space of electric trains and meeting the installation requirements of electric train equipment. The equipment obtains vehicle condition information through the onboard network, operates automatically, and triggers or intelligently controls the control system to perform detection operations, requiring no manual operation or supervision.

[0021] The inspection system's card module communicates via a communication backplane, facilitating functional verification and testing of each module and aiding in future equipment maintenance and repair. The equipment is equipped with a function expansion slot for expanding other functions.

[0022] The power module adopts a chassis-type railway DC-DC converter that conforms to railway standards BSEN / EN50155 and BSEN / EN45545-2, resulting in low system heat generation and high conversion efficiency.

[0023] The power supply control uses a three-pole contactor to intelligently control the output power supply, resulting in low heat generation when large currents pass through.

[0024] The device integrates communication plug-in modules such as TRDP, MVB, and switches, supporting communication with vehicle networks MVB, TCMS, LTE, and EUHT, and adopts a redundant design.

[0025] It integrates a 4G / 5G communication card module, accepts a SIM card, and connects to the inspection and processing host, enabling the vehicle-mounted inspection system to access the 4G / 5G network for remote control and debugging.

[0026] The device integrates a speed card module, which receives and processes speed sensor pulse signals (including current pulse signals and voltage pulse signals), synchronously triggers the acquisition system to perform spatial equidistant sampling of data, and sets the frequency division / multiplication coefficients and simulation output through the program.

[0027] The device integrates a CPU card module and uses an STM32 microcontroller to provide control signals for the three-pole contactor and fan module.

[0028] All connection ports and operation buttons of the device are located on the front panel for easy operation and maintenance. Attached Figure Description

[0029] Figure 1 This is a perspective view of the multi-functional box of the track inspection system disclosed in this utility model;

[0030] Figure 2 This is an exploded view of the multi-functional box of the track inspection system disclosed in this utility model;

[0031] Figure 3 A view attached to the multi-functional box of the track inspection system disclosed in this utility model;

[0032] Figure 4 This is a front view of the multi-functional box of the track inspection system disclosed in this utility model.

[0033] In the diagram, 1-Chassis; 2-Power input control component; 3-Power module component; 4-Function card component; 5-Control module component; 11-Middle crossbeam; 12-Front crossbeam; 13-Heat dissipation ventilation hole; 21-Power input module; 22-Overcurrent protection component; 21A-Power input port; 21B-Rocker switch; 31-DC-DC converter; 32A-Wiring module one, 32B-Wiring module two; 33A-Fan module one, 33B-Fan module two; 41-Communication backplane; 42-Speed ​​card module; 43-CPU card module; 44-Communication card module; 44A-4G / 5G card module; 44B-MVB card module; 44C-TRDP card module; 44D-Switch card module; 51A-Three-pole contactor one, 51B-Three-pole contactor two; 52A-Output panel module one, 52B-Output panel module two. Detailed Implementation

[0034] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0035] In this utility model, the terms "longitudinal," "lateral," "vertical," "horizontal," "top," "bottom," "left," "right," "front," and "rear," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 The orientation or positional relationship shown is for the purpose of describing the present invention only, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0036] The multi-functional box of the track inspection system disclosed in this utility model, such as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the system includes a chassis 1, a power input control component 2, a power module component 3, a function card component 4, and a control module component 5. The power input control component 2 is fixed to the front left side of the chassis 1 and is used to control the power input and provide overcurrent protection. The power module component 3 is fixed to the rear of the chassis 1 and converts and outputs the DC 110V power from the power input control component 2. At the same time, the fan module provides air cooling for the interior of the chassis. The function card component 4 is installed in the middle and front of the chassis 1 and realizes the corresponding communication and control functions. That is, it is used for communication with the vehicle network MVB, TCMS, LTE, and EUHT, and serves as a communication bridge between the track inspection equipment and the electric train system. The control module component 5 is distributed on the left and right sides of the chassis 1 and provides intelligent control of the DC 110V and DC 24V outputs.

[0037] The main body of the equipment in the multi-functional enclosure of the track inspection system adopts a CPCI architecture, making the equipment more integrated and miniaturized. High integration is achieved through a partitioned layout, compressing the traditional 12U equipment into a 3U enclosure. While meeting system functions, the size of the enclosure is greatly reduced, allowing it to accommodate various complex and constrained installation environments, adapt to the limited installation space of electric trains, and meet the installation requirements of electric train equipment.

[0038] Functional plug-in component 4 occupies the front part of the chassis, so that all electrical connections are in the front of the chassis, making it more convenient for electrical connection, inspection and maintenance of the equipment;

[0039] The use of a DC110V battery for power supply simplifies power conversion and makes the power module more compact.

[0040] The power input control component 2 includes a power input module 21 and an overcurrent protection component 22. The power input module 21 includes a power input port 21A and a rocker switch 21B. The power input port 21A uses a quick-connect, solderless industrial connector. The overcurrent protection component 22 is connected in series at the rear end of the power input port 21A. The power input module 21 uses a quick-connect to improve wiring efficiency, and the overcurrent protection component 22 provides overcurrent protection to ensure input safety and reduce the risk of short circuits.

[0041] The power module assembly 3 includes a DC-DC converter 31, a wiring module 32A, a wiring module 32B, a fan module 33A, and a fan module 33B. The input terminal of wiring module 32A is connected to the output terminal of the overcurrent protection component 22, and its output terminal is connected to the DC-DC converter 31 and the three-pole contactor 51A, distributing the DC 110V power output from the overcurrent protection component 22 to the DC-DC converter 31 and the three-pole contactor 51A. The DC-DC converter 31 converts the DC 110V to DC 24V. The input terminal of wiring module 32B is connected to the output terminal of the DC-DC converter 31, and its output terminal is connected to the internal components of the chassis 1 and the three-pole contactor 51B, distributing the converted DC 24V power to the internal components of the chassis 1 and the three-pole contactor 51B.

[0042] The fan module 33A is installed on the rear of the left inner wall of the chassis 1 and serves as an air intake window; the fan module 33B is installed on the rear of the right inner wall of the chassis 1 and serves as an air exhaust window, thereby achieving air convection to dissipate heat from the inside of the chassis 1.

[0043] The internal components of the chassis 1 include the power bus of the communication backplane 41 of the functional plug-in card component 4, the output panel module 52 of the control module component 5, and the interface of the external track inspection equipment, etc.

[0044] Wiring module 1 (32A) and wiring module 2 (32B) are plug-in quick-connect terminal blocks, which can realize high current branching and paralleling, and are convenient and quick to plug and unplug; DC-DC converter 31 is a chassis-type railway-specific switching power supply, which conforms to railway standards BSEN / EN50155 and BSEN / EN45545-2, with high conversion efficiency and low heat generation; Fan module 1 (33A) and fan module 2 (33B) use DC silent fans, which have strong airflow and low noise.

[0045] The functional card assembly 4 includes a communication backplane 41, a speed card module 42, a CPU card module 43, and a communication card module 44; the communication backplane 41 is vertically fixed to the middle crossbeam 11 of the chassis 1; the speed card module 42, the CPU card module 43, and the communication card module 44 are plugged into the communication backplane 41 through a backplane connector and fixed to the front crossbeam 12 with bolts.

[0046] The plug-in modules communicate via the communication backplane 41, facilitating functional verification and testing of each module and simplifying future maintenance and repair. The device also features expansion slots for additional functional expansion. The modular plug-in design supports hot-swapping, improving maintenance efficiency and eliminating messy wiring.

[0047] It integrates a speed card module 42, which receives and processes speed sensor pulse signals (including current pulse signals and voltage pulse signals), synchronously triggers the acquisition system to perform spatial equidistant sampling of data, and sets the frequency division / multiplication coefficient and simulation output through the program.

[0048] The device integrates a CPU card module and uses an STM32 microcontroller to provide control signals to the control module.

[0049] All connection ports of the device are located on the front panel for easy operation and maintenance.

[0050] The communication card module 44 includes:

[0051] The 4G / 5G SIM card module 44A is a full-network compatible 4G / 5G module that supports dual network ports and a WIFI interface.

[0052] The MVB plug-in module 44B adopts a dual-port redundant design with male and female interfaces and a HARTING9MVB railway connector.

[0053] TRDP plug-in module 44C adopts dual network port redundancy and M12-D type coded connector;

[0054] The 44D switch card module provides 8×100M network ports, with 3 100M network ports on the front panel and 5 100M network ports on the back panel.

[0055] It integrates communication plug-in modules such as TRDP, MVB, and switches, supporting communication with vehicle networks MVB, TCMS, LTE, and EUHT. This multi-protocol redundancy design is compatible with vehicle networks MVB / TCMS / LTE, improving communication reliability.

[0056] For example, the TRDP plug-in module 44C connects to the TCMS system train control and management system bus to obtain vehicle operating parameters such as speed and mileage in real time, and synchronously triggers data acquisition. It can also be used to transmit TRDP protocol data with the ground.

[0057] The switch module 44D connects to the vehicle's LTE / EUHT network for UDP protocol data transmission with the ground.

[0058] The system uses a 4G / 5G communication card module 44A, which connects to a SIM card and the inspection host, enabling the vehicle-mounted inspection system to access the 4G / 5G network for remote control and debugging.

[0059] When the electric bus is in daily operation and carrying passengers, it automatically runs by acquiring vehicle condition information through TCMS and triggers or intelligent control systems to perform detection operations without manual operation or supervision. Data transmission is carried out via Ethernet between the main processing unit and the equipment under the vehicle. At the same time, the detection results are automatically stored locally and can also be automatically transmitted to the ground through on-board networks such as TCMS or LTE.

[0060] The control module component 5 includes a three-pole contactor 51A, a three-pole contactor 51B, an output panel module 52A, and an output panel module 52B. The input terminal of the three-pole contactor 51A is connected to the wiring module 32A, the output terminal is connected to the output panel module 52A, and the control terminal is connected to the corresponding PCB terminal block of the communication backplane 41, thereby realizing intelligent control of the DC 110V power output. The input terminal of the three-pole contactor 51B is connected to the wiring module 32B, the output terminal is connected to the output panel module 52B, and the control terminal is connected to the corresponding PCB terminal block of the communication backplane 41.

[0061] The three-pole contactor 51A and the three-pole contactor 51B are DC contactors, which use DC (low voltage and small current) to control the switching of DC (large current). They generate very little heat and are easy to manage intelligently.

[0062] The side panel of the chassis 1 is provided with heat dissipation and ventilation holes 13. The chassis 1 is made of high-strength aluminum alloy, and the front crossbeam 11 and the middle crossbeam 12 of the chassis 1 are reinforced double-hole crossbeams.

[0063] Active cooling is achieved through air convection created by fan module 33A, fan module 33B, and ventilation holes 13, combined with metal thermal conductivity, thus controlling the internal temperature rise of the chassis 1. Dual-hole crossbeams enhance vibration resistance.

Claims

1. A multi-functional box for track inspection system, characterized in that: The system includes a chassis (1), a power input control component (2), a power module component (3), a function card component (4), and a control module component (5). The power input control component (2) is fixed to the front left side of the chassis (1) and is used for power input control and overcurrent protection of the input power. The power module component (3) is fixed to the rear of the chassis (1), and its input end is electrically connected to the output end of the power input control component (2). It receives the DC110V power output by the power input control component (2), converts the DC110V to DC24V and outputs it to power the internal components of the chassis (1), the power output port, and the track inspection beam. The function card component (4) is installed in the middle and front of the chassis (1) and is electrically connected to the output end of the power module component (3) to realize communication and control functions. The control module component (5) is symmetrically distributed on the inner walls of the left and right sides of the chassis (1) and is electrically connected to the output end of the power module component (3) to control the output of the DC110V and DC24V power.

2. The multi-functional box of the track inspection system as described in claim 1, characterized in that: The power input control component (2) includes a power input module (21) and an overcurrent protection component (22); the power input module (21) includes a power input port (21A) and a rocker switch (21B); the power input port (21A) uses a quick-connect solderless industrial connector; the overcurrent protection component (22) is connected in series at the rear end of the power input port (21A).

3. The multi-functional box for track inspection system as described in claim 2, characterized in that: The power module assembly (3) includes a DC-DC converter (31), a wiring module one (32A) and a wiring module two (32B); the input terminal of the DC-DC converter (31) receives a DC110V input from the power input control assembly (2) and converts it to a DC24V output; The input terminal of the wiring module (32A) is connected to the output terminal of the overcurrent protection component (22), and the output terminal is connected to the DC-DC converter (31) and the three-pole contactor (51A) to distribute the DC110V power output by the overcurrent protection component (22) to the DC-DC converter (31) and the three-pole contactor (51A). The input terminal of the wiring module 2 (32B) is connected to the output terminal of the DC-DC converter (31), and the output terminal is connected to the internal components of the chassis (1) and the three-pole contactor 2 (51B) to distribute the converted DC24V power to the internal components of the chassis (1) and the three-pole contactor 2 (51B).

4. The multi-functional box for the track inspection system as described in claim 3, characterized in that: The power module assembly (3) also includes fan module one (33A) and fan module two (33B). Fan module one (33A) is installed on the rear part of the left inner wall of the chassis (1) and serves as an air intake window. Fan module two (33B) is installed on the rear part of the right inner wall of the chassis (1) and serves as an air exhaust window, so as to realize air convection for air cooling inside the chassis (1).

5. The multi-functional box for track inspection system as described in claim 4, characterized in that: The functional card assembly (4) includes a communication backplane (41), a speed card module (42), a CPU card module (43), and a communication card module (44). The communication backplane (41) is vertically fixed to the middle crossbeam (11) of the chassis (1), and provides power and communication interconnection to the communication card module (44) through the backplane connector; and connects the control ports of fan module one (33A), fan module two (33B), wiring module one (32A) and wiring module two (32B) through PCB wiring terminals; The speed card module (42), CPU card module (43) and communication card module (44) are connected to the communication backplane (41) via a backplane connector and are fixed to the front crossbeam (12) with bolts.

6. The multi-functional box for the track inspection system as described in claim 5, characterized in that: The communication card module (44) includes: 4G / 5G SIM card module (44A) adopts a full network compatible 4G / 5G module and supports dual network ports + WIFI interface type; The MVB plug-in module (44B) adopts a dual-port redundant design with male and female interfaces and a HARTING9MVB railway connector. TRDP plug-in module (44C) adopts dual network port redundancy and M12-D type coded connector; The switch card module (44D) provides 8×100M network ports.

7. The multi-functional box for the track inspection system as described in claim 1, characterized in that: The control module component (5) includes a three-pole contactor one (51A), a three-pole contactor two (51B), an output panel module one (52A), and an output panel module two (52B). The input terminal of the three-pole contactor (51A) is connected to the wiring module (32A), the output terminal is connected to the output panel module (52A), and the control terminal is connected to the corresponding PCB wiring terminal of the communication backplane (41), thereby realizing intelligent control of the DC110V power output; The input terminal of the three-pole contactor (51B) is connected to the wiring module (32B), the output terminal is connected to the output panel module (52B), and the control terminal is connected to the corresponding PCB wiring terminal of the communication backplane (41), thereby realizing intelligent control of the DC24V power output.

8. The multi-functional box of the track inspection system as described in claim 1, characterized in that: The side panel of the chassis (1) is provided with heat dissipation and ventilation holes (13).

9. The multi-functional box for the track inspection system as described in claim 8, characterized in that: The chassis (1) is made of high-strength aluminum alloy, and the middle crossbeam (11) of the chassis (1) is a reinforced double-hole crossbeam.

Images