Electric control system and method for transfer platform of motor train unit

Abstract

The invention provides a motor train unit transfer platform electrical control system and method, the system comprises a system module, a first submodule and a second submodule, the system module comprises a detection module, a receiver, an operation module, an execution unit and a display element; the first sub-module comprises a left and right turning plate transfer bridge switch, an execution mechanism and a left and right turning plate transfer bridge limit switch; the second sub-module comprises a transmitter and a wireless module; compared with the prior art (products, methods and processes), the method has the advantages that (1) high efficiency is achieved, specifically, movement of the transfer platform is accurately controlled through an algorithm, and the operation efficiency is improved; (2) safety: monitoring the state of the system in real time, and automatically stopping operation and giving an alarm when the system is abnormal to guarantee safety; and (3) intelligentization: a user interface is friendly, operation is simple and convenient, the running state is displayed in real time, and monitoring and maintenance are convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of EMU equipment, and in particular to an electrical control system and method for an EMU transfer platform. Background Art

[0002] The EMU transfer platform is an important equipment used to transfer EMU vehicles between different tracks. Traditional transfer platforms mostly rely on manual or semi-automatic control, which has problems such as complex operation, low efficiency, and insufficient safety. With the rapid development of rail transit, an efficient, precise and safe electrical control method is urgently needed. Summary of the Invention

[0003] The purpose of the present invention is to improve the electrical control system and method for moving a vehicle, thereby improving the stability of the equipment and ensuring the safety and reliability of the vehicle moving operation through technical application.

[0004] To achieve the above-mentioned object, the present invention provides an electrical control system for a train transfer platform, the system comprising a system module, a first submodule and a second submodule, the system module comprising a detection module, a receiver, a calculation module, an execution unit and a display element; the first submodule comprising left and right flip-plate bridge switches, an actuator and left and right flip-plate bridge limit switches; the second submodule comprising a transmitter and a wireless module;

[0005] After the detection module sends a detection signal through the signal line, it is connected to the operation module through RS485 communication. At the same time, the receiver communicates with the wireless module through the wireless signal line. The receiver and the operation module are connected by a cable. The operation module is connected to the execution unit through the cable. The display element is connected to the operation module through RS485 communication.

[0006] The actuator controls the left and right flap bridge limit switches by reading the working instructions of the left and right flap bridge switches. The left and right flap bridge limit switches are connected to the detection module through cables and send the working status of the transfer platform to the detection module through voltage signals.

[0007] The transmitter sends the instruction of the working status of the vehicle transfer platform to the receiver via the wireless module.

[0008] Furthermore, the wireless signal line adopts 2.4 Hz industrial channel digital wireless transmission technology.

[0009] Furthermore, the operation module is used to receive the electrical signal sent by the receiver, and the execution unit can realize the turning of the transfer platform, the lifting of the ferry bridge, and the forward and backward movement of the large vehicle. The execution unit includes a contactor, a frequency converter and an electric motor. When the electrical signal sent by the transfer platform that the ferry bridge can be lifted and lowered normally, the turning of the platform, and the movement of the large vehicle is received, the operation module outputs the execution command according to the instruction, the contactor is energized, and 380 volts of AC power is provided to the frequency converter. The frequency converter outputs an electrical signal to control the motor, and the motor operates according to the signal requirements to realize the turning of the transfer platform, the lifting of the ferry bridge, and the forward and backward movement of the large vehicle.

[0010] A method for electrically controlling a train moving platform comprises the following steps:

[0011] S1: The operation module reads the closing status of the left and right flap bridge limit switches. The flap and bridge in the first submodule are limited by mechanical transmission pressure, and the closing status of the left and right flap bridge limit switches is sent to the detection module through electrical signals. The detection module sends the detection information to the operation module. The operation module performs multiple limit logic calculations to determine whether the transfer platform meets the operating conditions.

[0012] S2: The display element shows the logical status of the left and right flip bridges and the forward and backward movement commands of the trolley. The operating status of the trolley platform is fed back through the transmitter. The wireless module transmits the operating status to the receiver via 2.4GHz industrial channel digital wireless transmission. The receiver sends instructions to the calculation module, and the calculation module instructs the execution unit to work;

[0013] S3: The execution unit receives the instruction of the operation element and drives the execution element to operate. The execution element consists of a contactor, a frequency converter, a motor and a brake mechanism, which are responsible for the operation of the car transfer platform. The execution element is driven by a voltage signal, which can adopt an AC voltage of 380V or 220V.

[0014] S4: The display element shows the working status of the flap and the bridge and whether the left and right flap bridge limit switches are in place. In the display element of the system module, instructions are sent through the left and right flap bridge switches to display the closed status of the left and right flap bridge limit switches. The closed status includes color change and the working status of the executive element of the execution unit is displayed at the same time.

[0015] The present invention has the following advantages and improvements over the prior art (products, methods, processes):

[0016] (1) Efficiency: The algorithm accurately controls the movement of the transfer platform, improving operational efficiency;

[0017] (2) Safety: Real-time monitoring of system status, automatic shutdown and alarm in case of abnormality to ensure safety;

[0018] (3) Intelligence: User-friendly interface, easy operation, real-time display of operating status, easy monitoring and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the system module structure diagram;

[0020] Figure 2 It is the structural diagram of the first submodule;

[0021] Figure 3 This is the structural diagram of the second submodule. DETAILED DESCRIPTION

[0022] Reference Figures 1 to 3 The system includes a system module 100, a first submodule 200 and a second submodule 300. The system module 100 includes a detection module 101, a receiver 102, a calculation module 103, an execution unit 104 and a display element 105; the first submodule 200 includes left and right flip-up bridge switches 201, an actuator 202 and left and right flip-up bridge limit switches 203; the second submodule 300 includes a transmitter 301 and a wireless module 302; the system communication can adopt RS485 and industrial Ethernet communication, and the wiring adopts cable connection.

[0023] The transmitter 301 sends various instructions on the working status of the transfer platform (such as the rise and fall of the flap bridge and the forward and backward movement of the vehicle), which are sent to the receiver 102 through the wireless module 302. The receiver 102 converts the wireless signal into an electrical signal and transmits the electrical signal to the operation module 103 through a cable. The operation module 103 performs calculations and logical analysis, controls the execution unit 104 to perform the work according to the logic, and the display element 105 displays the operation data and status information of the transfer platform.

[0024] The first submodule 200 has the functions of manual control and detection of the flip plate and bridge. The left and right flip plate bridge switches 201 send electrical signals to the actuator 202 through cables, and the actions are executed by actuators such as motors and contactors. The left and right flip plate bridge limit switches transmit the working status to the detection module 101 of the system module 100 through cable No. 21. The detection module 101 transmits the electrical signal to the operation module 103. The operation module 103 analyzes the working status and displays the result on the display element 105.

[0025] The operation module is used to receive the electrical signal sent by the receiver. The execution unit can realize the turning over of the transfer platform, the lifting of the ferry bridge, and the forward and backward movement of the trolley. The execution unit includes a contactor, a frequency converter and an electric motor. When the ferry bridge and the flip plate are lifted or lowered, and the trolley moves, an electrical signal is sent. The operation module outputs an execution command according to the instruction, the contactor is energized, and 380 volts of AC power is provided to the frequency converter. The frequency converter outputs an electrical signal to control the motor, and the motor operates according to the signal requirements to realize the turning over of the transfer platform, the lifting of the ferry bridge, and the forward and backward movement of the trolley.

[0026] In a further embodiment, the electrical control network connection of the transfer platform can be a variety of protocols, such as IO bus, RS485, industrial Ethernet, etc. The detection module 101 can send a detection signal through the cable 21, and then connect to the transfer platform operation module 103 through RS485 communication. At the same time, the receiver 102 communicates with the wireless module 302 through the wireless signal line 31. The wireless signal 31 here adopts 2.4GHz industrial channel digital wireless transmission technology, the signal coverage radius can reach about 30m, and a "centralized" digital signal processing method is adopted, which will not produce echo, interference or intermittent conditions during use.

[0027] The receiver 102 is connected to the operation module 103 by a cable. The operation module 103 is connected to the execution unit 104 via a cable to control the peripheral execution equipment. The operation module 103 is connected to the execution element 105 via RS485 communication to display the working status of the transfer platform, bridge and other mechanisms.

[0028] Further specific embodiments: The first submodule 200 involves the manual control and detection devices of the transfer platform flap, the left and right flap bridge switches 201 are devices for operating the transfer platform working mode, and the actuator 202 controls the left and right flap bridge limit switches 203 by reading the working instructions of the left and right flap bridge switches 201. The left and right flap bridge limit switches 203 send the working status of the transfer platform to the detection module 101. The transmission signal can select voltage signal transmission (the working voltage can select AC 220V, DC 24V), and the left and right flap bridge limit switches 203 transmit the signal to the detection module 101 through the cable 21.

[0029] In a further embodiment, the transmitter 301 in the second submodule 300 sends various instructions on the working status of the vehicle transfer platform (such as the rising and falling of the turning bridge and the movement of the vehicle), and sends them to the receiver 102 through the wireless module 302.

[0030] In order to explain the working principle of this system more clearly, the following specific system implementation process is provided as follows:

[0031] (1) The operation module reads the closed state of the left and right flap bridge limit switches 203. The flap and bridge in the first submodule 200 are limited by mechanical transmission pressure. The closed state of the left and right flap bridge limit switches 203 is sent to the detection module 101 through an electrical signal. The detection module 101 sends the detection information to the operation module 103. The operation module 103 performs multiple limit logic calculations to determine whether the transfer platform meets the operating conditions. The operation module 103 can be any single-chip microcomputer or PLC.

[0032] (2) The display element 105 displays the logical status of the left and right flip-up bridge and the forward and backward movement commands of the large vehicle, and feedbacks the operating status of the vehicle transfer platform through the transmitter 301. The wireless module 302 transmits the operating status to the receiver 102 via 2.4GHz industrial channel digital wireless transmission. The receiver 102 sends instructions to the operation unit 103, and the operation unit 103 instructs the execution unit 104 to work;

[0033] (3) The execution unit 104 receives the instruction from the operation element 103 and drives the execution element to operate. The execution element is composed of a contactor, a frequency converter, a motor and a brake mechanism, which is responsible for the operation of the vehicle transfer platform. The execution element is driven by a voltage signal, which can use an AC voltage of 380V or 220V;

[0034] (4) The display element 105 displays the working status of the flap and the bridge and whether the left and right flap bridge limit switches 203 are in place. In the display element 105 of the system module 100, instructions are sent through the left and right flap bridge switches 201 to display the closed status of the left and right flap bridge limit switches 203. The closed status includes color change and the working status of the executive element of the execution unit 104 (for example: motor operation, frequency, direction) is displayed at the same time.

[0035] The present invention uses hardware installation to install computing modules, display elements, buttons, limit switches and other equipment on the transfer platform according to design requirements, and connect electrical circuits. Known computing modules are selected and purchased based on control principles and functional requirements, including flaps, bridges, forward and backward travel control of large vehicles, safety protection and remote communication. After installation, the transfer platform is debugged through debugging and optimization. Through manual operation and automatic operation tests, the operation status of the equipment is checked, and the functions of the computing modules are optimized and adjusted to ensure that the transfer platform can operate accurately and stably. A receiver 102 and a transmitter 301 are configured, and remote control of the movement, flaps and bridges of the transfer platform is achieved through the wireless module 302.

[0036] The working principle and specific process of the present invention include:

[0037] 1. Control Principle: This invention utilizes a control system based on a computational module, which precisely controls the platform's motors, sensors, and other equipment to achieve automated operation. Based on pre-set programs and sensor feedback, the computational module performs logical calculations and controls the platform's movements, positioning, and bridge raising and lowering.

[0038] 2. Positioning Control: Multiple positioning sensors are installed on the platform's travel track. When the platform approaches the target track, the sensors transmit signals to the calculation module. The calculation module precisely controls the speed and direction of the platform's motor based on the sensor signals, ensuring that the platform stops accurately at the target position with a positioning accuracy of ±5mm.

[0039] 3. Ferry Control: The ferry is raised and lowered by a motor. Multiple limit sensors monitor the ferry's position in real time during the raising or lowering process. When the ferry reaches a designated position, the limit sensors transmit a signal to the calculation module, which stops the motor to ensure the ferry is positioned accurately. Furthermore, a pressure sensor monitors the hydraulic system's pressure to prevent overloading of the ferry.

[0040] 4. Safety Protection Control: Multiple safety protection mechanisms are implemented, including an emergency stop button, anti-collision sensors, and overload protection. When the emergency stop button is pressed or the anti-collision sensor detects an obstacle, the computing module immediately cuts off the motor power, halting the platform. Overload protection is implemented by monitoring the motor current. When the current exceeds a set value, the system automatically stops the relevant operation to protect the equipment and personnel.

[0041] 5. Remote Monitoring: Through RS485 communication, the operating data and status information in the calculation module are transmitted to the touch screen. The staff can view the operation status of the vehicle transfer platform in real time on the touch screen, perform remote operation and fault diagnosis, and improve the management efficiency and maintenance convenience of the equipment.

Claims

1. An electrical control system for a train transfer platform, characterized in that: The system includes a system module, a first submodule and a second submodule. The system module includes a detection module, a receiver, a calculation module, an execution unit and a display element. The first submodule includes left and right flip-up bridge switches, an actuator and left and right flip-up bridge limit switches. The second submodule includes a transmitter and a wireless module. After the detection module sends a detection signal through the signal line, it is connected to the operation module through RS485 communication. At the same time, the receiver communicates with the wireless module through the wireless signal line. The receiver and the operation module are connected by a cable. The operation module is connected to the execution unit through the cable. The display element is connected to the operation module through RS485 communication. The actuator controls the left and right flap bridge limit switches by reading the working instructions of the left and right flap bridge switches. The left and right flap bridge limit switches are connected to the detection module through cables and send the working status of the transfer platform to the detection module through voltage signals. The transmitter sends the instruction of the working status of the vehicle transfer platform to the receiver via the wireless module.

2. The electrical control system for the EMU transfer platform according to claim 1 is characterized in that: The wireless signal line adopts 2.4Hz industrial channel digital wireless transmission technology.

3. The electrical control system for the EMU transfer platform according to claim 1 is characterized in that: The operation module is used to receive the electrical signal sent by the receiver. The execution unit can realize the turning over of the moving platform, the lifting of the ferry bridge, and the forward and backward movement of the large vehicle. The execution unit includes a contactor, a frequency converter and an electric motor. When the electrical signal sent by the moving platform that the ferry bridge can be lifted and lowered normally, the turning over of the platform and the movement of the large vehicle is received, the operation module outputs the execution command according to the instruction, the contactor is energized, and 380 volts of AC power is provided to the frequency converter. The frequency converter outputs an electrical signal to control the motor, and the motor operates according to the signal requirements to realize the turning over of the moving platform, the lifting of the ferry bridge, and the forward and backward movement of the large vehicle.

4. A method for controlling an electric vehicle transfer platform, comprising the following steps: S1: The operation module reads the closing status of the left and right flap bridge limit switches. The flap and bridge in the first submodule are limited by mechanical transmission pressure, and the closing status of the left and right flap bridge limit switches is sent to the detection module through electrical signals. The detection module sends the detection information to the operation module. The operation module performs multiple limit logic calculations to determine whether the transfer platform meets the operating conditions. S2: The display element shows the logical status of the left and right flip bridges and the forward and backward movement commands of the trolley. The operating status of the trolley platform is fed back through the transmitter. The wireless module transmits the operating status to the receiver via 2.4GHz industrial channel digital wireless transmission. The receiver sends instructions to the calculation module, and the calculation module instructs the execution unit to work; S3: The execution unit receives the instruction of the operation element and drives the execution element to operate. The execution element consists of a contactor, a frequency converter, a motor and a brake mechanism, which are responsible for the operation of the car transfer platform. The execution element is driven by a voltage signal, which can adopt an AC voltage of 380V or 220V. S4: The display element shows the working status of the flap and the bridge and whether the left and right flap bridge limit switches are in place. In the display element of the system module, instructions are sent through the left and right flap bridge switches to display the closed status of the left and right flap bridge limit switches. The closed status includes color change and the working status of the executive element of the execution unit is displayed at the same time.

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