Ship-to-shore navigation light

Abstract

Provided is a shore bridge navigation light, comprising a light assembly and a working state indication box, the light assembly comprising a light body and a base, the base being provided with an undercurrent relay and a first wireless transmission module, the first wireless transmission module being connected in series with the undercurrent relay and outputting a continuous signal according to the state of the undercurrent relay; the working state indication box comprising an indication lamp and a second wireless transmission module connected electrically, the second wireless transmission module being connected in signal connection with the first wireless transmission module and used for turning on the indication lamp according to the continuous signal. The above-mentioned shore bridge navigation light detects the working current when the navigation light is running through the undercurrent relay, and through the wireless cooperation of the first and second wireless transmission modules, the indication lamp is turned on or off, so as to remotely judge the working state of the navigation light through the wireless working state indication box.

Description

Technical Field

[0001] This utility model relates to the field of quay cranes, and more specifically to the field of navigation lights. Background Technology

[0002] A quay crane is an extra-large piece of machinery. Due to the requirements of the production site, it is installed and commissioned as a whole at the manufacturer's production base, and then transported to the customer's dock by a ship. Because of its huge size, reaching a height of over 70 meters, and because the crane is shipped to major ports around the world with long shipping times, temporary navigation lights are required during the quay crane's transport to indicate its position and direction of movement, ensuring safety during the shipping process.

[0003] Traditional temporary navigation lights are ordinary 220V yellow lights that illuminate when properly powered. However, because the navigation lights are installed high up, but the power supply is in the ship's cabin, it is impossible to determine whether the navigation lights are working properly or whether they have been damaged or not working during the voyage after supplying 220V power.

[0004] It is necessary to propose a navigation light to solve the above problems. Utility Model Content

[0005] One application of this invention is a navigation light for quay bridge navigation, which allows for remote determination of the navigation light's operational status.

[0006] To achieve the above objectives, the quay crane navigation light includes a light assembly and a working status indicator box. The light assembly includes a light body and a base. The base houses an undercurrent relay and a first wireless transmission module. The first wireless transmission module is connected in series with the undercurrent relay and outputs a connection signal or no signal according to the working status of the undercurrent relay. The working status indicator box includes an indicator light that is electrically connected and a second wireless transmission module. The second wireless transmission module is signal-connected to the first wireless transmission module and is used to turn on the indicator light according to the connection signal.

[0007] In one or more embodiments, the lamp assembly further includes a photosensitive switch disposed within the base, the photosensitive switch being located upstream of the lamp body.

[0008] In one or more embodiments, the lamp assembly further includes a rechargeable battery disposed within the base, the rechargeable battery being electrically connected to the undercurrent relay, the first wireless transmission module, and the lamp body.

[0009] In one or more embodiments, the quay bridge navigation light further includes a solar panel and a marine power input port, with the rechargeable battery electrically connected to the solar panel and the marine power input port.

[0010] In one or more embodiments, the base also includes a power supply mode switch located between the solar panel, the marine power input port, and the rechargeable battery, so that the rechargeable battery can be selectively connected to the solar panel and the marine power input port.

[0011] In one or more embodiments, the rechargeable battery is removably disposed within the base.

[0012] The aforementioned quay crane navigation system uses an undercurrent relay to detect the operating current of the navigation light. When the detected current is less than the operating current of the navigation light, the normally closed contact of the undercurrent relay opens, the second wireless transmission module does not receive a signal, and the indicator light does not illuminate. When the detected current is greater than the operating current of the navigation light, the normally closed contact of the undercurrent relay closes, and the first wireless transmission module receives the signal and sends a connection signal to illuminate the indicator light. In this way, the wireless cooperation between the first and second wireless transmission modules allows the indicator light to be turned on or off. The operating status of the navigation light can then be remotely determined via a wireless operating status indicator box, facilitating inspection and maintenance by the ship's electrician and avoiding the significant risks that could arise if the crew is unaware of a malfunctioning navigation light. Attached Figure Description

[0013] The above and other features, properties and advantages of this utility model will become more apparent from the following description taken in conjunction with the accompanying drawings and embodiments, wherein:

[0014] Figure 1 This is a schematic diagram of the lamp assembly;

[0015] Figure 2 This is a schematic diagram of the components inside the base;

[0016] Figure 3 This is a schematic diagram illustrating the working principle of navigation lights;

[0017] Figure 4 This is a schematic diagram of the working principle of the remote indicator box;

[0018] Figure 5 This is a schematic diagram of a remote indicator box for navigation light operating status. Detailed Implementation

[0019] The present invention will be further described below with reference to specific embodiments and accompanying drawings. More details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention can obviously be implemented in many other ways different from those described herein. Those skilled in the art can make similar extensions and derivations based on actual application situations without departing from the spirit of the present invention. Therefore, the scope of protection of the present invention should not be limited by the content of this specific embodiment.

[0020] It should be noted that these and other accompanying drawings are merely examples and are not drawn to scale, and should not be used as a limitation on the scope of protection of this utility model.

[0021] To address the problem that existing temporary navigation lights for quay cranes cannot effectively indicate whether they are functioning properly, this disclosure proposes a navigation light structure for quay cranes, such as... Figures 1 to 5 As shown, it includes a lamp assembly 10 and a working status indicator box 20.

[0022] The lamp assembly 10 includes a lamp body 11 and a base 12. The lamp body includes, but is not limited to, a 12W LED bulb powered by 24VDC. The base 12 houses an undercurrent relay 13 and a first wireless transmission module 14, and also includes electrically connected output terminals 15 and input terminals 16, a switching power supply 17, and a rechargeable battery 18. Figures 1 to 2 As shown, the first wireless transmission module 14 is connected in series with the undercurrent relay 13, and outputs a connection signal or no signal according to the operating state of the undercurrent relay 13. The operating status indicator box 20 includes an indicator light 21 with electrical connection and a second wireless transmission module 22, as shown. Figure 4 As shown. After receiving a signal, the transmission module inside the indicator box changes the state of its normally open output contact, thereby causing the green indicator light to light up or turn off.

[0023] Furthermore, such as Figure 3 In the circuit diagram shown, A1 and A2 of the undercurrent relay 13 are the relay coils, while B1 and B2 are connected in series in the load circuit to detect the load current. When the current in the load circuit exceeds the set current value, the undercurrent relay operates normally, and its dry contacts 95 and 96 are in the normally closed state, indicating that the navigation light can work normally and is in the connected state. When the current in the load circuit is less than the set current value, the undercurrent relay operates, and its dry contacts 95 and 96 are disconnected and in the open state.

[0024] A1 and A2 are the power inputs of the wireless transmission module, C and C1 are its output contacts, and G1 and G2 are its input acquisition contacts. This module is used in conjunction with the first wireless transmission module 14 and the second wireless transmission module 22, and performs bidirectional transmission. The signal exchange between the two is conducted wirelessly.

[0025] The first transmission module 14 at the aviation light serves as a signal acquisition module, and the second wireless transmission module 22 serves as a control output module. When the dry contacts 95 and 96 of the undercurrent relay 13 are closed, the input acquisition contacts G1 and G1 of the first transmission module 14 at the aviation light also close upon receiving the signal, sending an action signal to the second wireless transmission module 22. The contacts C and C1 of the second wireless transmission module 22 then close, outputting a connection signal. When the second wireless transmission module 22 receives the connection signal from the first wireless transmission module 14, it closes its normally open contacts, energizing the green indicator light 21 and illuminating it.

[0026] When the dry contacts 95 and 96 of the undercurrent relay 13 are open, the input acquisition contacts G1 and G2 of the first wireless transmission module 14 do not receive a signal and are also open, thus not sending a signal to the second wireless transmission module 22. Consequently, contacts C and C1 of the second wireless transmission module 22 are also open, and the indicator light 21 remains off. Therefore, when the second wireless transmission module 22 is connected to the first wireless transmission module 14, the indicator light 21 can be activated based on the connection signal from the first wireless transmission module 14; when the second wireless transmission module 22 does not receive a signal from the first wireless transmission module 14, the indicator light 21 is turned off. This process serves as an indication of whether the navigation light is on.

[0027] Furthermore, since temporary navigation lights are installed on the quay crane, but the power supply needs to be drawn from the hull, and some hulls lack 220V power, this causes significant problems in supplying power to the navigation lights. In such cases, it is necessary to lay cables hundreds of meters long, and sometimes additional transformers are required.

[0028] Based on this, the navigation light is also equipped with a solar panel 30, giving the navigation light two power supply modes: solar panel and ship power supply.

[0029] The solar panels provide 24VDC power. In sunny conditions, the solar panels partially charge the lithium batteries and partially power the navigation lights. On cloudy or rainy days, or at night, the lithium batteries power the navigation lights. The ship's power supply is a 220VAC power source, which, after passing through a 220VAC to 24VDC switching power supply, provides a stable 24VDC power to the navigation lights.

[0030] The power supply can be switched according to actual needs. For example, for short-term shipping, the solar panel power supply mode can be selected first, while for long-term shipping, the ship's electric power supply mode can be selected considering the possible long periods of cloudy and rainy weather.

[0031] The marine power input port 40 and the solar panel 30 are connected to the rechargeable battery 18 via a power mode switch 50, such as... Figure 4 As shown, this allows the rechargeable battery to be selectively connected to the solar panel or the marine power input.

[0032] When power is input, the current passes through the undercurrent relay 13 and the photosensitive switch 19 on its path to the lamp body 11 before reaching the aviation light.

[0033] When the photosensitive switch 19 is powered on, it has no output when there is light; when there is no light, it outputs 24VDC. By using the photosensitive switch 19, the navigation lights can be turned off in bright daylight, which can extend the service life of the lithium battery and bulbs and ensure the battery's battery life in case of power failure.

[0034] exist Figure 3 When the photosensitive switch is in a bright environment, it has no output. At this time, the navigation light is not lit, and no current flows through the B1 and B2 terminals of the undercurrent relay 13. Therefore, its dry contacts 95 and 96 are in the open state, and the G1 and G2 terminals of the first wireless transmission module 14 are in the open state, and no signal is sent to the second wireless transmission module 22. Figure 4 The second wireless transmission module 22 in the status indicator box did not receive an action signal, and C and C1 were in the disconnected state, so the working indicator light 21 was not lit.

[0035] When the photosensitive switch is in a dark environment, it activates and outputs 24VDC. At this time, the navigation light illuminates, and current flows through terminals B1 and B2 of the undercurrent relay 13, exceeding the set current value. Simultaneously, its dry contacts 95 and 96 are closed. At the same time, terminals G1 and G2 of the first wireless transmission module 14 at the navigation light also close, sending an activation signal to the second wireless transmission module 22 in the status indicator box. Figure 5 When the second wireless transmission module 22 in the status indicator box receives the connection action signal, the C and C1 terminals close, the working indicator light 21 is powered on and illuminates, indicating that the navigation light is in normal working condition.

[0036] When a navigation light suddenly fails during normal operation, no current flows through terminals B1 and B2 of the undercurrent relay 13, resulting in a current value less than the set value. At this time, its dry contacts 95 and 96 become open. Simultaneously, terminals G1 and G2 of the first wireless transmission module at the navigation light also become open, ceasing the transmission of action signals to the transmission module in the status indicator box. Figure 5 When the second wireless transmission module in the status indicator box interrupts receiving the action signal, the C and C1 terminals immediately disconnect, the working indicator light 21 goes out due to lack of power, indicating that the navigation light is in an abnormal working state.

[0037] The navigation lights used by the aforementioned quay crane have the following functions: they are equipped with solar power, which can meet the power supply needs of navigation lights during short-term voyages without the need to draw power from the ship; they are equipped with remote indication function of navigation light working status, so that the ship can see whether the navigation lights are working properly; and they are equipped with photosensitive switch function, which can save energy in the case of sufficient light.

[0038] The following is a specific example of calculating battery life.

[0039] For example, the navigation light bulb uses a 12W LED light with a voltage rating of 24VDC. Its brightness is equivalent to a 100W incandescent bulb, but it is more energy-efficient and has a longer lifespan. A 50Ah lithium battery is used. The solar panel is a 150W 24V monocrystalline panel (operating voltage 36V, open circuit voltage 44V). Power consumption calculation – for the maximum runtime in solar power mode without sunlight: Daily power consumption (since the calculation is for cloudy days, all power consumption is from the battery, and the battery usage time is calculated as 24 hours): 12W × 24h × 1.3 (transmission loss) = 374.4Wh, usable days = 50Ah × 24h × 80% (maximum battery discharge ratio) ÷ 374.4Wh = 2.56 days.

[0040] Based on the above calculations, when the solar panel power supply mode is selected, even on a completely cloudy day when the solar panels cannot charge and the daytime photosensitive sensor is inactive, the navigation lights can still operate for 2.56 days with full calculation of various losses and battery discharge levels. It also provides a backup battery replacement design to meet the requirements of short-term voyages. Therefore, this mode can be applied to short-term voyages without the need for additional time and effort in supplying power to the ship. When long-term voyages are required, this invention still provides a ship power supply mode that meets the requirements of long-term voyages, suitable for various usage scenarios.

[0041] It should be noted that the use of terms such as "first" and "second" to define the components in the above content is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application.

[0042] Furthermore, this application uses specific terms to describe embodiments of the application. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic related to at least one embodiment of the application. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of the application can be appropriately combined.

[0043] While the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the scope of the present invention. Any changes and modifications made by those skilled in the art without departing from the spirit and scope of the present invention are permitted. Therefore, any modifications, equivalent variations, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall fall within the scope of the present invention.

Claims

1. Navigation lights for quay cranes, characterized in that, include: The lamp assembly includes a lamp body and a base. The base houses an undercurrent relay and a first wireless transmission module. The first wireless transmission module is connected in series with the undercurrent relay and is used to output a connection signal or no signal depending on the operating state of the undercurrent relay. The working status indicator box includes an indicator light with electrical connection and a second wireless transmission module. The second wireless transmission module is signal-connected to the first wireless transmission module and is used to turn on the indicator light according to the connection signal.

2. The navigation light for quay cranes as described in claim 1, characterized in that, The lamp assembly also includes a photosensitive switch disposed within the base, the photosensitive switch being electrically connected to the lamp body.

3. The navigation light for quay cranes as described in claim 1, characterized in that, The lamp assembly also includes a rechargeable battery disposed in the base, the rechargeable battery being electrically connected to the undercurrent relay, the first wireless transmission module and the lamp body.

4. The navigation light for quay cranes as described in claim 3, characterized in that, The quay bridge navigation lights also include solar panels and a marine power input port, and the rechargeable battery is electrically connected to the solar panels and the marine power input port.

5. The navigation light for quay cranes as described in claim 4, characterized in that, The base also includes a power supply mode switch, which is located between the solar panel, the marine power input port, and the rechargeable battery, so that the rechargeable battery can be selectively connected to the solar panel or the marine power input port.

6. The navigation light for quay cranes as described in claim 3, characterized in that, The rechargeable battery is detachably housed within the base.

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