Underwater vehicle power switch based on magnetic latching relays and mechanical switches

Abstract

The application relates to an underwater vehicle power switch based on a magnetic latching relay and a mechanical switch, which comprises a battery, a mechanical switch, a remote control module, a magnetic latching relay, an underwater vehicle electric control system and wireless remote control. The method is characterized in that the mechanical switch and the magnetic latching relay are used as main components, under the premise of ensuring that the mechanical switch is closed, wireless remote control is used to send signals to control the action of the normally open contact of the magnetic latching relay, and the power supply and power-off of the vehicle are completed. The mechanical switch is introduced into the vehicle power supply loop, and the mechanical switch is disconnected when the vehicle does not need to be powered for a long time, so that the battery over-discharge caused by the power consumption of the remote control module and other electronic elements can be avoided without disassembling the cabin. The power-on and power-off operation of the vehicle can be performed without disassembling the cabin, the assembly workload of the vehicle is reduced, and the air-tightness safety problem caused by disassembling the cabin can be reduced.

Description

Technical Field

[0001] This invention belongs to the field of underwater vehicle control. Specifically, it relates to an underwater vehicle power switch based on a magnetic latching relay and a mechanical switch, which controls the power supply to and from the underwater vehicle. Background Technology

[0002] Autonomous underwater vehicles (AUVs) are important underwater operational equipment designed for underwater exploration and observation. With the advancement of the maritime power strategy, AUVs are playing an increasingly crucial role in scientific and educational, civilian, and military fields. One of the most important indicators for AUV operations is endurance; their batteries are mostly rechargeable, and the flexibility of battery switching and over-discharge protection is particularly important.

[0003] Currently, the power-on / off remote control modules used in AUVs are typically integrated within a sealed cabin. When the AUV is not in use for extended periods, the cabin needs to be removed to disconnect the power and prevent over-discharge caused by the remote control module. Another method for powering on / off AUVs is to use watertight cables, such as the physical power switch for underwater vehicles based on a magnetic latching relay (application number 202011186340.X). However, this requires manually plugging and unplugging the watertight cable to complete the power-on / off process. To improve upon these solutions, and to prevent over-discharge of the remote control module during long-term AUV inactivity while avoiding the cumbersome process of plugging and unplugging watertight cables, existing solutions need to introduce a waterproof mechanical switch that can be installed on the AUV cabin, and consider a suitable combination of this switch with the remote control module, wireless remote control, and magnetic latching relay. Summary of the Invention

[0004] Technical problems to be solved

[0005] To avoid the shortcomings of existing technologies, this invention proposes an underwater vehicle power switch based on a magnetic latching relay and a mechanical switch. The mechanical switch and the magnetic latching relay are the main components. Under the premise of ensuring that the mechanical switch is closed, a signal is sent by wireless remote control to control the action of the normally open contact of the magnetic latching relay, thereby completing the power supply and power cut-off of the underwater vehicle.

[0006] Technical solution

[0007] A power switch for an underwater vehicle based on a magnetic latching relay and a mechanical switch is characterized by comprising a battery, a mechanical switch, a remote control module, a magnetic latching relay, and an underwater vehicle electronic control system; the positive terminal of the battery forms a series loop through two pins of the mechanical switch S2, the COM pin of the magnetic latching relay module, the positive terminal of the remote control module, and the negative terminal of the battery; the positive terminal of the battery forms another series loop through two pins of the mechanical switch S2, the COM pin of the magnetic latching relay module, the normally open AO pin, the positive and negative terminals of the underwater vehicle electronic control system, and the negative terminal of the battery; the mechanical switch controls whether the remote control module is energized, the magnetic latching relay is controlled by the remote control module, and the remote control module is controlled by a wireless remote control signal.

[0008] The remote control module and the wireless remote control are equipped with three control signals. When the wireless remote control sends signal A, the remote control module sends a positive 5V square wave to energize the magnetic latching relay. When the wireless remote control sends signal B, the remote control module sends a negative 5V square wave to de-energize the magnetic latching relay. When the wireless remote control sends signal S, the A signal button and the B signal button on the wireless remote control become active.

[0009] A control method for underwater vehicles that utilizes a power switch based on a magnetic latching relay and a mechanical switch to ensure a sealed state, characterized by the following steps:

[0010] Step 1: Press the mechanical switch to power on the remote control module and enable it to receive wireless remote control signals;

[0011] Step 2: When the wireless remote control sends a power-on command, the remote control module provides a positive 5V operating power to the magnetic latching relay module, so that the COM pin electrode of the magnetic latching relay is connected to the normally open AO pin, thus energizing the underwater vehicle's electronic control system.

[0012] Step 3: When the remote control module receives the wireless remote control signal after the power failure, the remote control module provides a negative 5V operating power to the magnetic latching relay module, so that the magnetic latching relay is released from the energized state, and the COM pin electrode is restored to the normally closed AC pin, and the underwater vehicle's electronic control system is in a power failure state.

[0013] Beneficial effects

[0014] This invention proposes a power switch for underwater vehicles based on a magnetic latching relay and a mechanical switch, comprising a battery, a mechanical switch, a remote control module, a magnetic latching relay, an underwater vehicle electronic control system, and a wireless remote control. Addressing the shortcomings of existing technologies, this invention proposes a power switch design for underwater vehicles based on a magnetic latching relay and a mechanical switch. The key feature of this method is that it uses a mechanical switch and a magnetic latching relay as the main components. While ensuring the mechanical switch remains closed, a signal is transmitted via wireless remote control to control the action of the normally open contact of the magnetic latching relay, thereby completing the power supply and de-energization of the underwater vehicle.

[0015] The present invention has the following beneficial effects:

[0016] 1. This invention introduces a mechanical switch into the power circuit of the aircraft. When the aircraft is not required to be powered on for a long time, the mechanical switch is disconnected, which can avoid over-discharge of the battery due to power consumption by electronic components such as the remote control module without disassembling the compartment.

[0017] 2. This invention uses a magnetic latching relay. After the remote control module receives the wireless remote control signal and provides the excitation current, the contacts of the magnetic latching relay can self-hold, without relying on the continuous output of the remote control module, thus improving the stability of the power supply.

[0018] 3. The remote control of this invention adopts an A / B button design for the on / off function and a remote lock / unlock design, which greatly reduces the risk of misoperation and accidental touch.

[0019] 4. This invention allows for power-on and power-off operations on the aircraft without disassembling the cargo bay, reducing the workload of aircraft assembly and minimizing airtightness safety issues caused by disassembly. Attached Figure Description

[0020] Figure 1 This is an example of a power-on connection diagram for the present invention;

[0021] Figure 2 This is an example connection diagram of the present invention in the power-off state. Detailed Implementation

[0022] The present invention will now be further described in conjunction with the embodiments and accompanying drawings:

[0023] The technical solution adopted in this invention is a circuit design, which has the following characteristics:

[0024] This circuit includes a battery, a mechanical switch, a remote control module, a magnetic latching relay, an underwater vehicle's electronic control system, and a wireless remote control. Taking the underwater vehicle's electronic control system being powered on as an example (the following explanation uses this scenario): The battery's positive (+) pin is connected to the mechanical switch's S1 pin; the mechanical switch's S2 pin is connected to the magnetic latching relay module's COM pin; the magnetic latching relay module's COM pin is connected to the remote control module's positive (+) pin; the remote control module's negative (-) pin is connected to the battery's negative (-) pin; the magnetic latching relay module's AO pin is connected to the underwater vehicle's electronic control system's positive (+) pin; the magnetic latching relay module's AC pin is left floating, forming an open circuit; the underwater vehicle's electronic control system's negative (-) pin is connected to the battery's negative (-) pin; the wireless remote control emits signal A or B; the remote control module receives signal A and outputs a positive 5V square wave; the remote control module receives signal B and outputs a negative 5V square wave.

[0025] When the underwater vehicle's electronic control system is required to be powered on: Turning on the mechanical switch powers the remote control module; pressing the S button on the wireless remote control unlocks it, activating the A and B buttons; pressing the A button on the wireless remote control causes the remote control module to receive the A signal and output a positive 5V square wave; the normally closed contact of the magnetic latching relay opens, and the normally open contact closes and remains closed; at this point, the underwater vehicle's electronic control system is successfully powered on. Figure 1 As shown.

[0026] When power is required to de-energize the underwater vehicle's electronic control system: With the system already successfully powered on, press the S button on the wireless remote control to unlock it. Then, the A and B buttons on the wireless remote control will become active. Press the B button on the wireless remote control, and the remote control module will receive the B signal and output a negative 5V square wave. The normally closed contact of the magnetic latching relay will reset to the closed state, and the normally open contact will reset to the open state, and remain there. At this point, the underwater vehicle's electronic control system is successfully powered on. Finally, disconnect the mechanical switch, and the remote control module will be de-energized. The power-off process is complete. Figure 2 As shown.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, reductions, or equivalent substitutions made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A power switch for underwater vehicles based on a magnetic latching relay and a mechanical switch, characterized in that... It includes a battery, a mechanical switch, a remote control module, a magnetic latching relay, and an underwater vehicle electronic control system. The positive terminal of the battery, through two pins of the mechanical switch S2, the COM pin of the magnetic latching relay module, the positive terminal of the remote control module, and the negative terminal of the battery, forms a series loop. The positive terminal of the battery, through two pins of the mechanical switch S2, the COM pin of the magnetic latching relay module, the normally open AO pin, and the positive and negative terminals of the underwater vehicle electronic control system, forms another series loop. The mechanical switch controls whether the remote control module is energized, the magnetic latching relay is controlled by the remote control module, and the remote control module is controlled by a wireless remote control signal. The remote control module and the wireless remote control are equipped with three control signals. When the wireless remote control sends signal A, the remote control module sends a positive 5V square wave to energize the magnetic latching relay. When the wireless remote control sends signal B, the remote control module sends a negative 5V square wave to de-energize the magnetic latching relay. When the wireless remote control sends signal S, the A signal button and the B signal button of the wireless remote control are activated. When the underwater vehicle's electronic control system is required to be powered on: when the mechanical switch is turned on, the remote control module is powered on; when the S button of the wireless remote control is pressed to unlock the wireless remote control, the A and B buttons of the wireless remote control become active; when the A button of the wireless remote control is pressed, the remote control module receives the A signal and outputs a positive 5V square wave; the normally closed contact of the magnetic latching relay is in the open circuit state, and the normally open contact is in the closed state, and remains there. At this moment, the underwater vehicle's electronic control system was successfully powered on; When power is required to de-energize the underwater vehicle's electronic control system: With the system already powered on, press the S button on the wireless remote control to unlock it. Then, the A and B buttons on the wireless remote control will become active. Press the B button on the wireless remote control, and the remote control module will receive the B signal and output a negative 5V square wave. The normally closed contact of the magnetic latching relay will reset to the closed state, and the normally open contact will reset to the open state, and remain there. At this point, the underwater vehicle's electronic control system is successfully powered on. Finally, disconnect the mechanical switch, and the remote control module will be de-energized, completing the power-off process.

2. A control method for ensuring a sealed state of an underwater vehicle power switch based on a magnetic latching relay and a mechanical switch as described in claim 1, characterized in that... The steps are as follows: Step 1: Press the mechanical switch to power on the remote control module and enable it to receive wireless remote control signals; Step 2: When the wireless remote control sends a power-on command, the remote control module provides a positive 5V operating power to the magnetic latching relay module, so that the COM pin electrode of the magnetic latching relay is connected to the normally open AO pin, thus energizing the underwater vehicle's electronic control system. Step 3: When the remote control module receives the wireless remote control signal after the power failure, the remote control module provides a negative 5V operating power to the magnetic latching relay module, so that the magnetic latching relay is released from the energized state, and the COM pin electrode is restored to the normally closed AC pin, and the underwater vehicle's electronic control system is in a power failure state.

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