Automatic collection control device for marine shore power winch and implementation method of automatic collection control device

Abstract

The invention discloses an automatic collection control device for a marine shore power winch and an implementation method thereof, the device comprises a power panel and a control panel, the two panels are connected through a pin header, the power panel comprises a power unit and a relay unit, and the control panel comprises a CPU unit, a data storage unit, an LED display unit, a USB drive unit and a man-machine interaction unit; the method comprises an automatic mode and a test mode, in the automatic mode, the module keeps a timed collection state, timing is started after the relay unit is electrified, a next Tr + Ta timing period is recorded after timing is full of a Tr + Ta period, and the steps are repeated. The device has the advantages of being small in size, light in weight, high in reliability, long in service life, easy to operate and the like, the operation safety and efficiency of the shore power winch can be effectively improved, and the use requirements of modern ports and power equipment are met.

Description

Technical Field

[0001] The present invention relates to the field of shore power winch control, and particularly to a marine shore power winch automatic cable retracting control device and its implementation method. Background Art

[0002] With the development of the global shipping industry, ships play an increasingly important role in various maritime operations. As an important auxiliary equipment of ships, the performance of marine winches directly affects the efficiency and safety of cargo handling, anchoring, and other maritime operations. However, under long-term use and environmental influence, problems such as cable slack, entanglement, or damage may occur, which will lead to a decline in operation efficiency and even pose safety hazards. Therefore, developing an efficient and reliable automatic cable retracting control device is the key to improving the working performance of winches. Currently, the management of many marine winch cables still relies on manual operation, which not only increases the labor intensity but also may bring risks due to improper operation. In addition, it is very difficult to accurately control the tightening degree of the cable manually, often resulting in the cable being too slack or insufficiently tightened, thus affecting the normal operation of the winch. Therefore, how to achieve intelligent and automatic management of cables is an urgent problem to be solved. To solve these problems, it is particularly important to design a marine shore power winch automatic cable retracting control device. Summary of the Invention

[0003] Object of the Invention: The object of the present invention is to provide a marine shore power winch automatic cable retracting control device and its implementation method.

[0004] Technical Solution: The marine shore power winch automatic cable retracting control device described in the present invention includes a power board and a control board, and the two boards are connected by pin headers. The power board includes a power supply unit and a relay unit, and the control board includes a CPU unit, a data storage unit, an LED display unit, a USB drive unit, and a human-machine interaction unit. The power supply unit provides power for the entire system, and the relay unit, the data storage unit, the LED display unit, the USB drive unit, and the human-machine interaction unit are respectively connected to the CPU unit.

[0005] Further, the power supply unit includes an isolated power supply module and an LDO power converter.

[0006] Further, the relay unit includes two groups of single-pole double-throw relays.

[0007] Further, the CPU unit includes a CPU minimum system circuit and an electrostatic protection device.

[0008] Further, the data storage unit includes multiple EEPROMs.

[0009] Further, the USB drive unit includes a USB driver and a driver protection circuit.

[0010] Further, the human - machine interaction unit includes a DIP - switch unit and a button unit.

[0011] Further, the automatic cable - winding control device includes two modes, namely an automatic mode and a test mode.

[0012] The method for realizing automatic cable - winding of the marine shore - power winch according to the present invention includes an automatic mode and a test mode. In the automatic mode, the module maintains a state of timed cable - winding. After the relay unit is powered on, it starts timing. After the timing reaches one Tr + Ta cycle, it enters the next Tr + Ta timing cycle, and so on.

[0013] Press the test button to enter the test mode. In the test mode, it is judged whether to perform the operation of tightening or interrupting the cable according to the actual situation. The execution period is Tr + Ta. After one - cycle timing ends, it automatically exits the test mode and enters the automatic mode. When the device is in the Ta period, the relay K2 changes from the normally - open state to the normally - closed state. At this time, it is judged whether to perform the operation of tightening or interrupting the cable according to the actual situation.

[0014] Further, in the Tr + Ta timing cycle, if an interruption action occurs, the timing will be interrupted. When resuming, it starts timing again according to the Tr + Ta cycle, and does not retain the time before the interruption. When the device is in the Ta period, the normally - open of the relay K1 changes to normally - closed, and the normally - closed changes to normally - open. At this time, the device performs an automatic tightening action.

[0015] Beneficial effects: Compared with the prior art, the present invention has the following remarkable advantages: The automatic cable - winding control device of the present invention can use sensors to monitor the cable state in real - time, intelligently judge whether the cable is in a tightened state, and ensure that the winch cable is in a tightened state through timed cable - winding. With its high sensitivity and reliability, it can effectively improve the operation efficiency of the winch, reduce the labor intensity, and ensure the safety during the operation process, greatly improving the operation efficiency of the ship. It has a small volume, light weight, high reliability, long service life, and simple operation, meeting the usage requirements of modern ports and power equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall circuit structure of the present invention;

[0017] Figure 2 is a schematic diagram of the power - supply board circuit of the present invention;

[0018] Figure 3 is a schematic diagram of the control - board circuit of the present invention;

[0019] Figure 4 is a top - view of the automatic cable - winding control device for a marine shore - power winch;

[0020] Figure 5 The front view of the automatic cable-receiving control device for marine shore power winch;

[0021] Figure 6 The side view of the automatic cable-receiving control device for marine shore power winch;

[0022] Figure 7 The circuit schematic diagram of the automatic cable-receiving control device for marine shore power winch. Specific embodiments

[0023] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.

[0024] As Figure 1 shown, the automatic cable-receiving control device for marine shore power winch described in the present invention includes a power supply board and a control board. The power supply board includes a power supply unit 1 and a relay unit 2, and the control board includes a CPU unit 3, a data storage unit 4, an LED display unit 5, a USB drive unit 6, and a human-computer interaction unit 7. The power supply unit 1 provides power for the entire system, and the relay unit 2, the data storage unit 4, the LED display unit 5, the USB drive unit 6, and the human-computer interaction unit 7 are connected to the CPU unit 3.

[0025] As Figure 2 shown is the overall circuit structure schematic diagram of the power supply board. The power supply unit 1 is used to provide 3.3V and 5V voltages. The power supply unit 1 consists of an isolated power supply module and an LDO power converter. The input voltage (usually 220VAC) is converted into a stable 5V DC output through the isolated power supply module to supply power to low-voltage devices. Then, the 5V DC is converted into a 3.3V DC output voltage through the LDO power converter. Through the coordinated work of the isolated power supply module and the LDO power converter, the input voltage is converted into 5V and 3.3V.

[0026] The relay unit 2 is responsible for controlling high-power loads, providing electrical isolation, reducing circuit complexity, and improving the safety and reliability of the system. It consists of two groups of single-pole double-throw relays. Among them, the relay K1 is used to output a normally closed signal at the NC and COM ports and a normally open signal at the NO and COM ports in the automatic mode, and the contact capacity is 1A@30VDC / 250VAC. The relay K2 is used to output a normally open signal at the R1 and R2 in the test mode, and the contact capacity is 1A@30VDC / 250VAC.

[0027] As Figure 3 shown is the overall circuit structure schematic diagram of the control board. The CPU unit 3 is the core control part of the device, responsible for performing various logical operations, data processing, and instruction control. The CPU unit 3 consists of a CPU minimum system circuit and an electrostatic protector. Among them, the CPU uses the STM32G031F6P6 chip.

[0028] The data storage unit 4 is used to store the data collected during the operation of the device and the set parameters. The data storage unit 4 consists of an EEPROM.

[0029] The LED display unit 5 is used to display whether the device is in a normal operating state and consists of three groups of LED lights. The POWER light turns on when the power supply is connected normally, and it turns white, indicating that the power supply is input normally; the REALY light turns on when the relay is working, and it turns green, indicating that the relay has output; the TEST light turns on after being long-pressed for 2 seconds, and it turns green, indicating that the module switches from the automatic mode to the manual test mode.

[0030] The USB drive unit 6 is used to realize data transmission between the device and an external computer or other devices. The USB drive unit 6 consists of a USB drive and a drive protection circuit.

[0031] The human-machine interaction unit 7 provides an operation interface between the user and the device and consists of a DIP switch unit and buttons. The DIP switch unit includes a four-bit DIP switch circuit, which is used to set the cycle parameters of the automatic retraction execution cycle; the four-bit DIP switches are combined in pairs to set the Tr (interval time) and Ta (action time) of the two modes respectively. The button unit includes 2 tactile switch circuits. The TEST test button enters the test mode after being long-pressed for 2 seconds, and the CANCEL cancel test button exits the test mode immediately after being pressed and executes the automatic mode.

[0032] The top view, front view and side view of the automatic retraction control device for marine shore power winches according to the present invention are as Figure 4 , Figure 5 and Figure 6 shown. The length of this automatic retraction control device is 89.7 mm, the width is 35.6 mm, and the height is 60.7 mm. It can be seen from Figure 4 that there are 8 interfaces, 3 LED display lights and 2 buttons on the housing of the device.

[0033] As Figure 7 shown is the circuit schematic diagram of the automatic retraction control device for marine shore power winches. It can be seen from the figure that there are 8 interfaces. Ports 1 and 2 are for AC input, and the input range is 85 - 265V AC; Port 3 is for PE; Ports 4 and 5 are the R1 and R2 terminals of the relay K2; Ports 7, 8 and 9 are the NO, COM and NC terminals of the relay K1.

[0034] The winch automatic retraction control device designed by the present invention is used for real-time monitoring of the tightened state of the shore power winch. By retracting at regular intervals, it ensures that the winch cable is in a tightened state. This module has two modes, namely the automatic mode and the test mode, and the implementation methods are as follows:

[0035] When the device is in the automatic mode, the relay is energized and starts timing. After the timing reaches Tr (interval time, default 30 min), the passive output contact operates and remains in that state for a period of Ta (operation time, default 6 s). After the Ta timing ends, the time relay enters the next Tr + Ta timing cycle, and so on. During the Tr + Ta timing cycle, if an interruption occurs (interruptions include: power failure of the module, entering the test mode), the timing will be interrupted. When resuming, the timing restarts according to the Tr + Ta cycle, and the time before the interruption is not retained. When the device is in the Ta period, the normally open contact of relay K1 turns into normally closed, and the normally closed contact turns into normally open. At this time, the device performs the automatic tightening action.

[0036] When the device is in the automatic mode, pressing the test button (holding for 2 s) enters the test mode, and the execution cycle is Tr (interval time, default 1 min) + Ta (operation time, default 6 s). After one Tr + Ta cycle of timing ends, it automatically exits the test mode and enters the automatic mode. When the device is in the Ta period, relay K2 changes from the normally open state to the normally closed state. At this time, it can be judged whether to perform the operation of tightening or interrupting the cable according to the actual situation.

[0037] The automatic cable-receiving control device for marine shore power winches designed in the present invention is installed using a guide rail, with pluggable terminals, convenient wiring, safe and reliable. It has the characteristics of small volume, light weight, high reliability, long service life, and simple operation, and can effectively improve the operation safety and efficiency of shore power winches, meeting the usage requirements of modern ports and power equipment.

Claims

1. An automatic retracting control device for a shore power winch for a ship, characterized in that: The invention comprises a power board and a control board, the two boards are connected via a pin header, the power board comprises a power supply unit (1) and a relay unit (2), the control board comprises a CPU unit (3), a data storage unit (4), an LED display unit (5), a USB drive unit (6) and a human-machine interaction unit (7), the power supply unit (1) provides power for the entire system, and the relay unit (2), the data storage unit (4), the LED display unit (5), the USB drive unit (6) and the human-machine interaction unit (7) are respectively connected to the CPU unit (3).

2. The automatic retracting control device for a shore power winch for a ship according to claim 1, characterized in that: The power supply unit (1) comprises an isolated power supply module and an LDO power converter.

3. The automatic retracting control device for a shore power winch for a ship according to claim 1, characterized in that: The relay unit (2) comprises two groups of single-pole double-throw relays.

4. The automatic retracting control device for a shore power winch for a ship according to claim 1, characterized in that: The CPU unit (3) comprises a CPU minimum system circuit and an anti-static protector.

5. The automatic retracting control device for shore power winch for ship according to claim 1, characterized in that: The data storage unit (4) includes a plurality of EEPROMs.

6. The automatic retracting control device for shore power winch for ship according to claim 1, characterized in that: The USB drive unit (6) comprises a USB drive and a drive protection circuit.

7. The automatic retracting control device for a shore power winch for a ship according to claim 1, characterized in that: The human-machine interaction unit (7) comprises a dial unit and a key unit.

8. The automatic retracting control device for a shore power winch for a ship according to claim 1, characterized in that: The automatic collection control device includes two modes, namely, an automatic mode and a test mode.

9. A method for automatically collecting a marine shore power winch, characterized in that: It includes automatic mode and test mode. In automatic mode, the module keeps the timing collection state. The relay unit starts timing after being energized. After a Tr+Ta cycle is completed, it will be counted into the next Tr+Ta timing cycle, and so on. Press the test button to enter the test mode. In the test mode, it is determined whether the operation of tightening or interrupting the cable needs to be performed based on the actual situation. The execution cycle is Tr+Ta. After one cycle is completed, the test mode is automatically exited and the automatic mode is entered. When the device is in the Ta period, the relay K2 changes from the normally open state to the normally closed state. At this time, it is determined whether the operation of tightening or interrupting the cable needs to be performed based on the actual situation.

10. The method for automatically collecting a shore power winch for a ship according to claim 9, characterized in that: If an interruption occurs during the Tr+Ta timing cycle, the timing will be interrupted. When it is restored, the timing will be restarted according to the Tr+Ta cycle, and the time before the interruption will not be retained; When the device is in the Ta period, the normally open state of relay K1 changes to normally closed state, and the normally closed state changes to normally open state. At this time, the device performs an automatic tightening action.

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