Shipborne dome skylight control method and system

Abstract

The invention relates to the technical field of automatic control, and discloses a shipborne dome skylight control method and system, and the method comprises the steps: controlling a drive unit based on an instruction of a time sequence control unit, and enabling a shipborne dome and a dome skylight to jointly rotate from a static state in a first direction at a first speed; an execution state is sent to the display terminal, meanwhile, a first triggering state of the magnetic induction unit is responded, the driving unit is controlled to enable the shipborne dome to stop rotating, and resetting of the shipborne dome is completed; in response to a third trigger state of the magnetic induction unit, the shipborne dome is separated from the dome skylight, and the driving unit is controlled to enable the shipborne dome to rotate at a second speed in a second direction; and in response to the fifth trigger state of the magnetic induction unit, the driving unit is controlled to stop the rotation of the shipborne dome. According to the method, the real-time position of the shipborne dome can be confirmed by setting a plurality of trigger states, whether the shipborne dome slides in place or not does not need to be manually and subjectively judged, and operation inconvenience caused by extreme weather is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of automation systems, and more particularly, to a method and system for controlling a shipborne dome skylight. Background Art

[0002] Currently, domes are mainly used for astronomical observations. Dome skylights are often designed as arched frames with motors and chains on the frames. The skylight slides up and down relative to the dome, facilitating astronomical observations by astronomical telescopes. When an astronomical telescope conducts astronomical observations, the operator controls the sliding of the dome skylight through buttons inside the dome.

[0003] The control mechanism of the dome skylight mainly includes a motor and a reduction mechanism. Domes used on land are only affected by external wind forces, and the control of the dome skylight is relatively simple. However, the operator still needs to subjectively determine the state of the dome skylight being closed or opened in place.

[0004] The shipborne dome is installed outdoors, and the control of the shipborne dome skylight is greatly affected by sea winds and the tilt angle of the ship. Moreover, there are devices with relatively strong radiation power installed on the ship, and the operator cannot operate at the dome in real time. Summary of the Invention

[0005] The object of the present invention is to provide a method and system for controlling a shipborne dome skylight, which can solve at least one of the above-mentioned technical problems. The specific solutions are as follows: According to a specific embodiment disclosed by the present invention, a first aspect of the present invention discloses a method for controlling a shipborne dome skylight, including: controlling a driving unit based on an instruction from a timing control unit, so that the shipborne dome and the dome skylight jointly rotate from a stationary state at a first speed and in a first direction; Sending an execution status to a display terminal, and at the same time, in response to a first trigger state of the magnetic induction unit, controlling the driving unit to stop the rotation of the shipborne dome, thereby completing the reset of the shipborne dome; In response to a third trigger state of the magnetic induction unit, disengaging the shipborne dome from the dome skylight, and controlling the driving unit to rotate the shipborne dome at a second speed and in a second direction, where the first direction is opposite to the second direction; In response to a fifth trigger state of the magnetic induction unit, controlling the driving unit to stop the rotation of the shipborne dome.

[0006] Preferably, the step of sending an execution status to a display terminal, and at the same time, in response to a first trigger state of the magnetic induction unit, controlling the driving unit to stop the rotation of the shipborne dome, thereby completing the reset of the shipborne dome, includes: Sending an execution status to a display terminal, and when the shipborne dome rotates at a first speed and in a first direction, detecting whether the second trigger state of the magnetic induction unit is sensed; If the second trigger state is not sensed, the on-ship dome maintains the first speed and continues to rotate in the first direction; When the second trigger state is sensed, the on-ship dome is decelerated from the first speed to the third speed by the driving unit, maintains the third speed, and continues to rotate in the first direction; When the first trigger state is sensed, the driving unit is controlled to stop the rotation of the on-ship dome, completing the reset of the on-ship dome; Wherein, the first direction is the rotation direction in which the on-ship dome can sense the second trigger state first and then the first trigger state.

[0007] Preferably, before the step of controlling the driving unit to stop the rotation of the on-ship dome in response to the fifth trigger state of the magnetic induction unit, it includes: When the on-ship dome rotates at the second speed in the second direction, it is detected whether the fourth trigger state of the magnetic induction unit is sensed; If the fourth trigger state is not sensed, the on-ship dome maintains the second speed and rotates in the second direction; When the fourth trigger state is sensed, in response to the fourth trigger state, the on-ship dome is decelerated from the second speed to the fourth speed and maintains the fourth speed and continues to rotate in the second direction.

[0008] Preferably, when the execution state is that the dome skylight is being opened or closed, when the on-ship dome senses the fifth trigger state, the driving unit is controlled to stop the rotation of the on-ship dome, so that the dome skylight is fully opened or closed; Or, the execution state is that the dome skylight is being opened or closed. When the fourth trigger state is sensed, the on-ship dome decelerates from the second speed to zero, and the dome skylight is opened at the first angle.

[0009] Preferably, the detecting whether the fourth trigger state of the magnetic induction unit is sensed when the on-ship dome rotates at the second speed in the second direction includes: If the fourth trigger state is not sensed, but the sixth trigger state is detected, the second speed of the on-ship dome is controlled to be zero, and the dome skylight is opened at the second angle.

[0010] Preferably, the timing control unit includes: a timer, and it is queried whether to enter the timer interrupt through the timer flag bit; if not entering the timer interrupt, the static state of the on-ship dome is maintained.

[0011] Preferably, the control and drive unit uses a digital-to-analog chip to convert digital signals into analog signals, and adjusts the rotation speed of the on-ship dome by changing the output value of the digital-to-analog chip.

[0012] According to the specific embodiments disclosed by the present invention, a second aspect of the present invention discloses an on-ship dome skylight control system, including: A timing control unit, configured to determine whether the system enters a timer interrupt; A drive unit, configured to control the rotation speed of the on-ship dome; A magnetic induction unit, including a plurality of trigger points at fixed positions, and determining the rotation position of the on-ship dome according to the trigger states of the trigger points; A dome control unit, based on the instructions of the timing control unit, in response to the trigger states of the magnetic induction unit, controls the drive unit to control the on-ship dome to perform an opening or closing procedure; A display terminal, configured to display the execution status of the on-ship dome.

[0013] Preferably, the dome control unit adopts an FPGA and DSP architecture.

[0014] Preferably, the drive unit uses a DAC chip with a resolution of 1.22 mV, and the maximum rotation speed of the on-ship dome is 20° / s.

[0015] Compared with the prior art, the above solutions disclosed by the present invention have at least the following beneficial effects: The present invention first completes a reset to stop the on-ship dome and the dome skylight at a determined position; then, by using the relative sliding generated by the on-ship dome and the dome skylight, in response to different trigger states, controls the on-ship dome to move to different positions, so that the dome skylight can be opened or closed at different angles. The setting of multiple trigger states can confirm the real-time position of the on-ship dome, eliminating the need for subjective human judgment on whether the on-ship dome has slid in place, avoiding operational inconvenience caused by extreme weather, and safely and accurately operating the opening and closing of the skylight. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings here are incorporated into the specification and form a part of the specification, showing embodiments that conform to the disclosure of the present invention, and are used together with the specification to explain the principles of the disclosure of the present invention. Obviously, the drawings in the following description are only some embodiments of the disclosure of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. In the drawings: Figure 1 is the front view of the on-ship dome in an embodiment of the present invention; Figure 2It is a flowchart of a method for controlling a shipborne dome skylight according to the first embodiment of the present invention; Figure 3 It is a top view of the shipborne dome when the dome skylight is closed according to an embodiment of the present invention; Figure 4 It is a top view of the shipborne dome when the dome skylight is opened according to an embodiment of the present invention; Figure 5 It is a flowchart when the dome skylight is opened according to an embodiment of the present invention; Figure 6 It is a data processing flowchart of the dome control unit according to an embodiment of the present invention; Figure 7 It is a schematic structural diagram of a shipborne dome skylight control system according to the second embodiment of the present invention.

[0017] Reference numerals: 10: Dome skylight; 20: Shipborne dome; 30: Fixing mechanism; 40: Optical measurement device; 1: First stop position; 2: First deceleration position; 3: First control position; 4: Second control position; 5: Second stop position; 6: Locking position; 7: Second deceleration position; 100: Dome control unit; 200: Magnetic induction unit; 300: Driving unit; 400: Timing control unit; 500: Display terminal. Detailed implementation manners

[0018] In order to make the purpose, technical solutions and advantages of the present invention disclosure clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention disclosure, rather than all embodiments. Based on the embodiments disclosed in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention disclosure.

[0019] The terms used in the embodiments of the present invention disclosure are only for the purpose of describing specific embodiments, and are not intended to limit the present invention disclosure. The singular forms "a", "the" and "said" used in the embodiments of the present invention disclosure and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. "Plural" generally includes at least two.

[0020] It should be understood that the term " / and / " used herein is only a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0021] It should be understood that although terms such as first, second, and third may be used in the disclosed embodiments of the present invention, these descriptions should not be limited to these terms. These terms are only used to distinguish the descriptions. For example, without departing from the scope of the disclosed embodiments of the present invention, the first may also be referred to as the second, and similarly, the second may also be referred to as the first.

[0022] Depending on the context, as used herein, the words "if", "when" can be interpreted as "when...", "when...", or "in response to determining", or "in response to detecting". Similarly, depending on the context, the phrase "if determined" or "if detected (stated condition or event)" can be interpreted as "when determined", "in response to determining", "when detected (stated condition or event)", or "in response to detecting (stated condition or event)".

[0023] It should also be noted that the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a commodity or device comprising a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such commodity or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the existence of another identical element in the commodity or device comprising the element.

[0024] The following will Figure 1-7 detail the optional embodiments disclosed in the present invention.

[0025] The shipborne dome is installed on the topmost layer of the ship. The shipborne dome is mainly used to prevent the optical measurement equipment from being restricted in use due to the influence of changes in marine weather. When the optical measurement equipment is in use and the marine weather is clear, the dome skylight is fully opened and the optical measurement equipment works normally; when it is rainy and the rainfall is small at sea, the dome skylight can be opened only at a certain angle and the optical measurement equipment works normally; when the marine weather is severe, the dome skylight is fully closed and the optical measurement equipment is not used. Since the shipborne dome is installed outdoors, the control of the shipborne dome skylight is greatly affected by the marine wind force and the ship's tilt angle, and there are equipment with strong radiation power installed on the ship, and the operator cannot go to the dome in real time for operation.

[0026] The control method of the shipborne dome skylight in this embodiment is based on the Figure 1 shown shipborne dome structure. One end of the shipborne dome 20 is a hemispherical structure, and an observation window for the operation of the optical measurement equipment is provided through the side wall. The width of the window is adapted to the diameter of the main mirror of the optical measurement equipment. The dome skylight is arranged outside the hemispherical structure. The dome skylight has a certain curvature and width and can rotate and slide along the hemispherical structure to realize the closing of the observation window. In this embodiment, the diameter of the shipborne dome 20 is 8 meters, the diameter of the main mirror of the optical measurement equipment is 1 meter, and the width of the dome skylight 10 is 2 meters.

[0027] The first embodiment of the present invention provides a control method for an on-ship dome skylight. The dome control unit 100 performs the following steps: Step S102: Based on the instruction of the timing control unit 100, control the driving unit 300 to make the on-ship dome 20 and the dome skylight 10 rotate from a stationary state at a first speed and in a first direction.

[0028] Step S104: Send the execution status to the display terminal 500. At the same time, in response to the first trigger state of the magnetic induction unit 200, control the driving unit 300 to stop the rotation of the on-ship dome 20, and complete the reset of the on-ship dome 20.

[0029] Step S106: In response to the third trigger state of the magnetic induction unit 200, disconnect the on-ship dome 20 from the dome skylight 10, and control the driving unit 300 to make the on-ship dome 20 rotate at a second speed and in a second direction. The first direction is opposite to the second direction.

[0030] Step S108: In response to the fifth trigger state of the magnetic induction unit 200, control the driving unit to stop the rotation of the on-ship dome 20.

[0031] In this embodiment, the driving unit 300 converts the internal digital signal into an analog signal through a driving DA chip to control the rotation of the motor of the on-ship dome. When the output of the DA chip is 0, the on-ship dome skylight does not rotate. When the output of the DA chip is 4096, the on-ship dome rotates at a maximum speed of 20° / s. In this embodiment, the dome control unit 100 is arranged inside the on-ship dome 20, and a plurality of magnetic induction units 200 are arranged outside the on-ship dome 20. The relative positions of the plurality of magnetic induction units 200 are fixed and do not rotate synchronously with the on-ship dome 20. A trigger end capable of recognizing the magnetic induction unit 200 is installed on the side of the on-ship dome 20 close to the magnetic induction unit 200. By recognizing the magnetic induction units distributed at different positions, the sliding position of the dome skylight is determined.

[0032] Such as Figure 3 or Figure 4 In the top view, a plurality of magnetic induction units 200 are arranged on the annular fixing mechanism 30. The on-ship dome 20 rotates around its own axis. When in a certain position, the dome skylight 10 turns on the optical measuring device 40 to work.

[0033] Specifically, Figure 3 a is the top view when the dome skylight 10 is closed. At this time, the relative position between the on-ship dome 20 and any magnetic induction unit is uncertain. If the dome skylight is to be opened, the dome control unit 100 performs the following steps: Step S102-1: Based on the instruction of the timing control unit 100, control the driving unit 300 to make the on-ship dome 20 and the dome skylight 10 rotate counterclockwise from the stationary state at a first speed.

[0034] For quick opening, set the DA output to 512 to make the on-ship dome 20 and the dome skylight 10 rotate uniformly counterclockwise.

[0035] Step S103-1: The dome control unit 100 sends the execution information of "the skylight is opening" to the display terminal 500, and at the same time detects the trigger state of the magnetic induction unit at the second deceleration position 7. If the second trigger state is not sensed, continue to rotate counterclockwise at the current first speed until the second trigger state is sensed. At this time, in response to the second trigger state, the on-ship dome decelerates to the third speed, and the DA output value is set to drop to 145, and continue to rotate counterclockwise.

[0036] Step S104-1: Detect the trigger state of the magnetic induction unit at the second stop position 5, that is, the first trigger state. In response to the first trigger state of the magnetic induction unit 200, control the driving unit 300 to stop the rotation of the on-ship dome 20, and complete the reset of the on-ship dome 20.

[0037] The position of the on-ship dome after completion of the reset is as Figure 3 shown in b, and point A is the trigger end that can detect the trigger state.

[0038] Step S105-1: At this time, detect the trigger state of the magnetic induction unit at the locking position 6.

[0039] In this embodiment, two magnetic induction units can be set at the locking position 6, which are respectively used to judge the locking conditions of the dome skylight 10 and the on-ship dome 20. Only when the conditions that the dome skylight is disengaged from the on-ship dome and the dome skylight is locked with the fixing mechanism 30 are met, the third trigger state of the magnetic induction unit at the locking position 6 will be triggered to perform the next operation.

[0040] Step S106-1: In response to the third trigger state of the magnetic induction unit 200, disengage the on-ship dome 20 from the dome skylight 10, and control the driving unit 300 to make the on-ship dome 20 rotate at a second speed and in a second direction, and the first direction is opposite to the second direction.

[0041] In this embodiment, in order to quickly achieve opening, set the second speed of the DA output to 512. At this time, the dome skylight is fixed, and the on-ship dome 20 rotates clockwise. A relative movement is generated between the on-ship dome 20 and the dome skylight 10, so that the dome skylight is located on the side of the on-ship dome 20 away from the observation window of the on-ship dome 20.

[0042] Step S107-1: When the on-ship dome 20 rotates clockwise at the second speed, detect whether the fourth trigger state of the magnetic induction unit located at the first deceleration position 2 is sensed; If the fourth trigger state is not sensed, the on-ship dome remains rotating clockwise at the second speed; When the fourth trigger state is sensed, in response to the fourth trigger state, the on-ship dome descends from the second speed to the fourth speed and continues to rotate along the second direction while maintaining the fourth speed. When the fifth trigger state of the magnetic induction unit located at the first stop position 1 is detected, step S108-1 is executed.

[0043] Step S108-1: In response to the fifth trigger state of the magnetic induction unit, control the drive unit to stop the rotation of the on-ship dome. At this time, the steps for fully opening the dome skylight are completed.

[0044] Further, if there is a situation where the dome skylight needs to be incompletely opened, the following steps are executed after completing step S106-1: Step S107-2: When the fourth trigger state is sensed, in response to the fourth trigger state, the on-ship dome descends from the second speed to zero, and at this time, the on-ship dome will stop before the first stop position 1, realizing a small-angle opening of the first angle.

[0045] Alternatively, the following steps are executed after completing step S106-1: Step S107-3: Taking clockwise rotation as an example, a first control position 3 and / or a second control position 4 are set in front of the first deceleration position 2. When the sixth trigger state at the first control position 3 or the second control position 4 is detected, control the second speed of the on-ship dome to be zero, so that the dome skylight opens at the second angle.

[0046] In this embodiment, the positions of each trigger state are only examples, and are actually set for the purpose of satisfying the observation of the optical measurement device.

[0047] Another embodiment of the present invention provides a method for closing the dome skylight. Similar to the opening method, since the relative position between the on-ship dome 20 and any magnetic induction unit is uncertain, as Figure 4 shown, if the dome skylight is to be closed, first lock the dome skylight with the on-ship dome, and the dome control unit 100 executes the following steps: Step S202-1: Based on the instruction of the timing control unit 100, control the drive unit 300 to make the on-ship dome 20 and the dome skylight 10 rotate clockwise from the stationary state at the first speed.

[0048] Step S203-1: The dome control unit 100 sends the execution information of "the skylight is closing" to the display terminal 500, and at the same time detects the trigger state of the magnetic induction unit at the first deceleration position 2. If the magnetic induction unit at the first deceleration position 2 is not sensed, continue to rotate clockwise at the current speed until the magnetic induction unit at the first deceleration position 2 is sensed. At this time, the on-ship dome decelerates and continues to rotate clockwise.

[0049] Step S204-1: Detect the trigger state of the magnetic induction unit at the first stop position 1. If the magnetic induction unit at the first stop position 1 is detected, control the drive unit 300 to stop the rotation of the on-ship dome 20, and complete the reset of the on-ship dome 20.

[0050] Step S205-1: At this time, detect the trigger state of the magnetic induction unit at the locking position 6 to ensure that the dome skylight is disengaged from the on-ship dome, and the dome skylight is locked with the fixing mechanism 30.

[0051] Step S206-1: Control the drive unit 300 to rotate the on-ship dome 20 counterclockwise at the second speed.

[0052] Step S207-1: When the on-ship dome 20 rotates counterclockwise at the second speed, detect whether the trigger state of the magnetic induction unit at the second deceleration position 7 is sensed; If not sensed, the on-ship dome maintains the second speed and rotates counterclockwise; When the magnetic induction unit at the second deceleration position 7 is sensed, the on-ship dome decelerates and continues to rotate counterclockwise. When the magnetic induction unit at the second stop position 5 is detected, execute Step S208-1.

[0053] Step S208-1: In response to the magnetic induction unit at the second stop position 5, control the drive unit to stop the rotation of the on-ship dome. At this time, the steps for completely closing the dome skylight are completed.

[0054] In other embodiments, an incomplete closing instruction can be executed during the closing process.

[0055] In other embodiments, an instruction from fully opening the dome skylight to partially closing it, an instruction from partially opening to fully opening, or an instruction from partially closing to fully closing can be executed, but a reset operation needs to be performed first. The specific process will not be elaborated here.

[0056] The dome control unit of the present invention adopts an FPGA and DSP architecture, is placed inside the shipborne dome, and is controlled by a remote terminal set in the remote control room. The FPGA is responsible for collecting the key states of the skylight control panel of the shipborne dome and the states of the magnetic induction proximity switches, and communicating with the DSP. The DSP is responsible for control algorithms and driving the DA conversion chip. The DA converter outputs a 12-bit voltage with a resolution of 1.22 mV, and the maximum rotation speed of the shipborne dome is 20° / s.

[0057] Figure 6 Figure 4 shows the data processing flow of the dome control unit 100.

[0058] 1. Set the DA output to 0 to keep the shipborne dome in a stopped state; 2. There is a 100 Hz timer inside the program, and it is queried whether to enter the timer interrupt through the internal timer flag bit; 3. If not entering the timer interrupt, keep the shipborne dome stationary; 4. If entering the timer interrupt, read the trigger state of the external magnetic induction unit and judge the mechanical locking state and mechanical opening state of the dome skylight; 5. If the mechanical locking state of the dome skylight is in the locked state and the mechanical opening state of the dome skylight is in the unopened state, prompt through the display terminal that the dome mechanical structure is in the locked state, ask the operator to check, put the dome skylight mechanical mechanism in the opened state, and set the DA output to 0; 6. If the mechanical locking state of the dome skylight is in the unlocked state and the mechanical opening state of the dome skylight is in the opened state, then enter to read the key state of the dome skylight control panel; 7. If the state read from the display terminal is "open skylight", execute "open skylight" until the dome skylight is fully opened, and display that the dome skylight opening is completed; 8. If the state read from the display terminal is "close skylight", execute "close skylight" until the dome skylight is fully closed, and display that the dome skylight closing is completed.

[0059] The second embodiment of the present invention also discloses a device embodiment that continues from the above embodiment, which is used to implement the method steps described in the above embodiment. Based on the same meaning explanation of the same name as the above embodiment, it has the same technical effects as the above embodiment, and will not be elaborated here.

[0060] As Figure 2 shown, the present invention discloses a control system for a shipborne dome skylight, including: A timing control unit 400, which is used to judge whether the system enters the timer interrupt; A driving unit 300, which is used to control the rotation speed of the shipborne dome; The magnetic induction unit 200 includes multiple trigger points at fixed positions, and determines the rotation position of the on-ship dome based on the trigger states of the trigger points. The dome control unit 100 controls the drive unit based on the instructions of the timing control unit and in response to the trigger states of the magnetic induction unit, and controls the on-ship dome to perform the opening or closing procedure. The display terminal 500 is used to display the execution status of the on-ship dome.

[0061] Among them, the magnetic induction unit is a magnetic induction proximity switch; the timing control unit is a timer.

[0062] A third embodiment of the present invention provides an electronic device, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein, the memory stores instructions executable by the one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the method steps as described in the above embodiment.

[0063] A fourth embodiment of the present invention discloses a non-volatile computer storage medium, which stores computer-executable instructions that can execute the method steps as described in the above embodiment.

Claims

1. A method for controlling a shipborne dome skylight, characterized in that: include: Based on the instruction of the timing control unit, the driving unit is controlled to rotate the ship-borne dome and the dome skylight together from a stationary state at a first speed and in a first direction; Sending an execution status to a display terminal, and at the same time, in response to a first trigger state of the magnetic sensing unit, controlling the driving unit to stop the rotation of the shipborne dome, thereby completing the resetting of the shipborne dome; In response to a third trigger state of the magnetic sensing unit, the shipborne dome is disengaged from the dome skylight, and the driving unit is controlled to rotate the shipborne dome at a second speed and in a second direction, wherein the first direction is opposite to the second direction; In response to a fifth triggering state of the magnetic sensing unit, the driving unit is controlled to stop the rotation of the shipborne dome.

2. The control method according to claim 1, characterized in that: The step of sending the execution status to the display terminal and, in response to the first trigger state of the magnetic sensing unit, controlling the driving unit to stop the rotation of the shipborne dome to complete the resetting of the shipborne dome includes: sending an execution status to a display terminal, and detecting whether a second triggering state of the magnetic sensing unit is sensed when the shipborne dome rotates at a first speed and in a first direction; If the second trigger state is not sensed, the shipborne dome maintains the first speed and continues to rotate in the first direction; When the second trigger state is sensed, the shipborne dome is caused to decrease from the first speed to a third speed through the driving unit, and the third speed is maintained and the shipborne dome continues to rotate in the first direction; When the first trigger state is sensed, the driving unit is controlled to stop the rotation of the shipborne dome, thereby completing the resetting of the shipborne dome; The first direction is a rotation direction that enables the shipborne dome to sense the second trigger state first and then sense the first trigger state.

3. The control method according to claim 1 or 2, characterized in that: Before the step of controlling the driving unit to stop the rotation of the shipborne dome in response to the fifth trigger state of the magnetic sensing unit, the method further comprises: When the shipborne dome rotates at a second speed and in a second direction, detecting whether a fourth trigger state of the magnetic sensing unit is sensed; If the fourth trigger state is not sensed, the shipborne dome maintains the second speed and rotates in the second direction; When the fourth trigger state is sensed, in response to the fourth trigger state, the shipborne dome decreases from the second speed to a fourth speed, maintains the fourth speed, and continues to rotate in the second direction.

4. The control method according to claim 3, characterized in that: When the execution state is that the dome skylight is opening or closing, the shipborne dome controls the driving unit to stop the rotation of the shipborne dome when sensing the fifth trigger state, so that the dome skylight is fully opened or closed; Alternatively, the execution state is that the dome skylight is opening or closing, and when the fourth trigger state is sensed, the shipborne dome decreases from the second speed to zero, so that the dome skylight opens at a first angle.

5. The control method according to claim 3, characterized in that: When the shipborne dome rotates at a second speed and in a second direction, detecting whether a fourth trigger state of the magnetic sensing unit is sensed includes: If the fourth trigger state is not sensed but the sixth trigger state is detected, the second speed of the shipborne dome is controlled to be zero, so that the dome skylight opens at a second angle.

6. The control method according to claim 1, characterized in that: The timing control unit comprises: a timer, which queries whether a timer interruption occurs through a timer flag; if the timer interruption does not occur, the ship-borne circle is kept in a stationary state.

7. The control method according to claim 1, characterized in that: The control driving unit converts the digital signal into an analog signal by using a digital analog chip, and adjusts the rotation speed of the shipborne dome by changing the output value of the digital analog chip.

8. A control system for a shipborne dome skylight, characterized in that: Executing the control method according to any one of claims 1 to 7, comprising: A timing control unit is used to determine whether the system enters a timer interrupt; a drive unit for controlling the rotation speed of the shipborne dome; A magnetic sensing unit, comprising a plurality of trigger points at fixed positions, and the rotation position of the ship-borne dome is determined by the trigger states of the trigger points; A dome control unit, based on the instruction of the timing control unit and in response to the triggering state of the magnetic sensing unit, controls the driving unit to control the shipborne dome to open or close; The display terminal is used to display the execution status of the shipborne dome.

9. The control system according to claim 8, characterized in that: The dome control unit adopts FPGA and DSP architecture.

10. The control system according to claim 8, characterized in that: The driving unit adopts a DAC chip with a resolution of 1.22mV, and the maximum rotation speed of the ship-borne dome is 20° / s.

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