A method and system for controlling a shipborne dome skylight

Abstract

The present invention relates to the field of automatic control technology, and discloses a control method and system for a shipborne dome skylight, including: controlling a drive unit based on an instruction of 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 status of a magnetic induction unit, controlling the drive unit to stop the rotation of the shipborne dome to complete the reset of the shipborne dome; in response to a third trigger status of the magnetic induction unit, disengaging the shipborne dome from the dome skylight, and controlling the drive unit to rotate the shipborne dome at a second speed and in a second direction; in response to a fifth trigger status of the magnetic induction unit, controlling the drive unit to stop the rotation of the shipborne dome. The present invention can first confirm the real-time position of the shipborne dome through the setting of multiple trigger statuses, without the need for subjective human judgment on whether the shipborne dome slides in place, avoiding the inconvenience of operation caused by extreme weather.

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. The dome skylight is often designed as an arched frame with motors and chains on the frame. The skylight slides up and down relative to the dome to facilitate astronomical observations with a telescope. When the astronomical telescope is in use for observations, the operator can slide the dome skylight through buttons inside the dome.

[0003] The control mechanism of the dome skylight mainly includes motors and reduction mechanisms. 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 whether the dome skylight is closed or opened in place.

[0004] Shipborne domes are installed outdoors, and the control of shipborne dome skylights is greatly affected by sea winds and the tilt angle of the ship. Moreover, there are equipment with relatively high radiation power installed on the ship, and the operator cannot always be present at the dome for operation. Summary of the Invention

[0005] The purpose 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:

[0006] According to a specific embodiment of the present invention, a method for controlling a shipborne dome skylight is disclosed, including: controlling a driving unit based on an instruction from a timing control unit to rotate a shipborne dome and a dome skylight together from a stationary state at a first speed and in a first direction;

[0007] 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 to complete the reset of the shipborne dome;

[0008] 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;

[0009] In response to a fifth trigger state of the magnetic induction unit, controlling the driving unit to stop the rotation of the shipborne dome.

[0010] 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 to complete the reset of the shipborne dome includes:

[0011] Send the execution status to the display terminal, and when the on-vehicle dome rotates at a first speed in a first direction, detect whether the second trigger state of the magnetic induction unit is sensed;

[0012] If the second trigger state is not sensed, the on-vehicle dome maintains the first speed and continues to rotate in the first direction;

[0013] When the second trigger state is sensed, the on-vehicle dome is decelerated from the first speed to a third speed by the driving unit, and maintains the third speed and continues to rotate in the first direction;

[0014] When the first trigger state is sensed, control the driving unit to stop the rotation of the on-vehicle dome to complete the reset of the on-vehicle dome;

[0015] Wherein, the first direction is the rotation direction that enables the on-vehicle dome to sense the second trigger state first and then the first trigger state.

[0016] Preferably, before the step of controlling the driving unit to stop the rotation of the on-vehicle dome in response to the fifth trigger state of the magnetic induction unit, it includes:

[0017] When the on-vehicle dome rotates at a second speed in a second direction, detect whether the fourth trigger state of the magnetic induction unit is sensed;

[0018] If the fourth trigger state is not sensed, the on-vehicle dome maintains the second speed and rotates in the second direction;

[0019] When the fourth trigger state is sensed, in response to the fourth trigger state, the on-vehicle dome is decelerated from the second speed to a fourth speed and maintains the fourth speed and continues to rotate in the second direction.

[0020] Preferably, when the execution status is that the dome skylight is being opened or closed, when the on-vehicle dome senses the fifth trigger state, control the driving unit to stop the rotation of the on-vehicle dome to fully open or close the dome skylight;

[0021] Or, the execution status is that the dome skylight is being opened or closed, when the fourth trigger state is sensed, the on-vehicle dome decelerates from the second speed to zero to open the dome skylight at a first angle.

[0022] Preferably, the step of detecting whether the fourth trigger state of the magnetic induction unit is sensed when the on-vehicle dome rotates at a second speed in a second direction includes:

[0023] If the fourth trigger state is not sensed, but the sixth trigger state is detected, control the second speed of the on-ship dome to be zero, and open the dome skylight at the second angle.

[0024] Preferably, the timing control unit includes: a timer, which queries whether to enter the timer interrupt through the timer flag bit; if not entering the timer interrupt, maintain the stationary state of the on-ship circle.

[0025] 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.

[0026] According to the specific embodiments disclosed in the present invention, a second aspect of the present invention discloses an on-ship dome skylight control system, including:

[0027] A timing control unit, used to determine whether the system enters the timer interrupt;

[0028] A drive unit, used to control the rotation speed of the on-ship dome;

[0029] A magnetic induction unit, including a plurality of trigger points at fixed positions, and judging the rotation position of the on-ship dome through the trigger states of the trigger points;

[0030] 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 the opening or closing procedure;

[0031] A display terminal, used to display the execution status of the on-ship dome.

[0032] Preferably, the dome control unit adopts an FPGA and DSP architecture.

[0033] 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.

[0034] Compared with the prior art, the above scheme disclosed in the present invention has at least the following beneficial effects:

[0035] The present invention first makes the on-ship dome and the dome skylight stop at a definite position by completing the reset; then utilizes 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 slides in place, avoiding the inconvenience of operation caused by extreme weather, and safely and accurately operating the opening and closing of the skylight. Description of the Drawings

[0036] The accompanying drawings here are incorporated into the description and form a part of this description, showing embodiments consistent with the disclosure of the present invention, and are used together with the description to explain the principles disclosed by the present invention. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts. In the drawings:

[0037] Figure 1 is the front view of a shipborne dome according to an embodiment of the present invention;

[0038] Figure 2 is the flowchart of a method for controlling a shipborne dome skylight according to the first embodiment of the present invention;

[0039] Figure 3 is the top view of the shipborne dome when the dome skylight is closed according to an embodiment of the present invention;

[0040] Figure 4 is the top view of the shipborne dome when the dome skylight is opened according to an embodiment of the present invention;

[0041] Figure 5 is the flowchart when the dome skylight is opened according to an embodiment of the present invention;

[0042] Figure 6 is the data processing flowchart of the dome control unit according to an embodiment of the present invention;

[0043] Figure 7 is the schematic structural diagram of a shipborne dome skylight control system according to the second embodiment of the present invention.

[0044] Reference numerals:

[0045] 10: dome skylight; 20: shipborne dome; 30: fixing mechanism; 40: optical measurement device;

[0046] 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;

[0047] 100: dome control unit; 200: magnetic induction unit; 300: drive unit; 400: timing control unit; 500: display terminal. Detailed embodiments

[0048] To make the objectives, technical solutions, and advantages of the present disclosure clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Apparently, the described embodiments are only a part of the embodiments of the present disclosure, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments disclosed in the present invention without creative efforts belong to the scope of protection of the present disclosure.

[0049] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The singular forms "a", "the", and "said" used in the embodiments of the present 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.

[0050] It should be understood that the term "and / or" used herein is only a relationship describing associated objects, indicating that three relationships may exist. For example, A and / or B may 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.

[0051] It should be understood that although terms such as first, second, and third may be used in the embodiments of the present disclosure for description, 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 embodiments of the present disclosure, the first may also be referred to as the second, and similarly, the second may also be referred to as the first.

[0052] Depending on the context, the words "if" and "when" used herein may be interpreted as "when" or "while" 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)" may be interpreted as "when determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)".

[0053] It should also be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a commodity or device including 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, the element defined by the statement "including one..." does not exclude the existence of another identical element in the commodity or device including the said element.

[0054] The following Figure 1-7 detailedly describes the optional embodiments of the present disclosure.

[0055] 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 marine weather changes. 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, so the operator cannot go to the dome in real time for operation.

[0056] The control method of the shipborne dome skylight in this embodiment is based on the Figure 1 shipborne dome structure as shown. 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 this window is adapted to the diameter of the main mirror of the optical measurement equipment. The dome skylight is arranged on the outside of the hemispherical structure. The dome skylight has a certain radian 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.

[0057] The first embodiment of the present invention provides a control method for a shipborne dome skylight. The dome control unit 100 executes the following steps:

[0058] Step S102: Based on the instruction of the timing control unit 100, control the drive unit 300 to make the shipborne dome 20 and the dome skylight 10 rotate from the stationary state at a first speed and in a first direction.

[0059] Step S104: Send the execution status to the display terminal 500, and at the same time, in response to the first trigger state of the magnetic induction unit 200, control the drive unit 300 to stop the rotation of the shipborne dome 20 and complete the reset of the shipborne dome 20.

[0060] Step S106: In response to the third trigger state of the magnetic induction unit 200, disconnect the shipborne dome 20 from the dome skylight 10, and control the drive unit to make the shipborne dome 20 rotate at a second speed and in a second direction, and the first direction is opposite to the second direction.

[0061] Step S108: In response to the fifth trigger state of the magnetic induction unit 200, control the drive unit to stop the rotation of the shipborne dome 20.

[0062] 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 shipborne dome. When the output of the DA chip is 0, the skylight of the shipborne dome does not rotate. When the output of the DA chip is 4096, the shipborne dome rotates at the maximum speed of 20° / s.

[0063] In this embodiment, the dome control unit 100 is arranged inside the shipborne dome 20, and a plurality of magnetic induction units 200 are arranged outside the shipborne dome 20. The relative positions of the plurality of magnetic induction units 200 are fixed and do not rotate synchronously with the shipborne dome 20. A trigger end capable of recognizing the magnetic induction unit 200 is installed on the side of the shipborne dome 20 close to the magnetic induction unit 200, and the sliding position of the dome skylight is determined by recognizing the magnetic induction units distributed at different positions.

[0064] As Figure 3 Or Figure 4 In the top view of, a plurality of magnetic induction units 200 are arranged on the annular fixing mechanism 30, and the shipborne dome 20 rotates around its own axis. When the dome skylight 10 is opened at a certain position, the optical measuring device 40 works.

[0065] Specifically, Figure 3 a is the top view when the dome skylight 10 is closed. At this time, the relative position of the shipborne 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:

[0066] Step S102-1: Based on the instruction of the timing control unit 100, control the driving unit 300 to make the shipborne dome 20 and the dome skylight 10 rotate counterclockwise from the stationary state at the first speed.

[0067] For quick opening, set the DA output to 512 to make the shipborne dome 20 and the dome skylight 10 rotate counterclockwise at a constant speed.

[0068] 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 located at the second deceleration position 7. If the second trigger state is not detected, continue to rotate counterclockwise at the current first speed until the second trigger state is detected. At this time, in response to the second trigger state, the shipborne dome decelerates to the third speed, and the DA output value is set to drop to 145, and continue to rotate counterclockwise.

[0069] Step S104-1: Detect the trigger state of the magnetic induction unit located 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 shipborne dome 20, and complete the reset of the shipborne dome 20.

[0070] After the reset is completed, the position of the shipborne dome is as Figure 3 shown in b, and point A is the trigger end that can detect the trigger state.

[0071] Step S105-1: At this time, detect the trigger state of the magnetic induction unit at the locking position 6.

[0072] In this embodiment, two magnetic induction units can be set at the locking position 6 to respectively judge the locking conditions of the dome skylight 10 and the shipborne dome 20. Only when the conditions that the dome skylight is disengaged from the shipborne 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.

[0073] Step S106-1: In response to the third trigger state of the magnetic induction unit 200, disengage the shipborne dome 20 from the dome skylight 10, and control the driving unit 300 to rotate the shipborne dome 20 at a second speed and in a second direction, where the first direction is opposite to the second direction.

[0074] In this embodiment, in order to quickly realize the opening, set the DA output to the second speed of 512. At this time, the dome skylight remains stationary, and the shipborne dome 20 rotates clockwise. A relative movement is generated between the shipborne dome 20 and the dome skylight 10, so that the dome skylight is located on the side of the shipborne dome 20 away from the observation window of the shipborne dome 20.

[0075] Step S107-1: When the shipborne dome 20 rotates clockwise at the second speed, detect whether the fourth trigger state of the magnetic induction unit at the first deceleration position 2 is sensed;

[0076] If the fourth trigger state is not sensed, the shipborne dome maintains the second speed and rotates clockwise;

[0077] When the fourth trigger state is sensed, in response to the fourth trigger state, the shipborne dome descends from the second speed to the fourth speed and continues to rotate in the second direction. When the fifth trigger state of the magnetic induction unit at the first stop position 1 is detected, execute step S108-1.

[0078] Step S108-1: In response to the fifth trigger state of the magnetic induction unit, control the driving unit to stop the rotation of the shipborne dome. At this time, the steps for fully opening the dome skylight are completed.

[0079] Further, if there is a situation where the dome skylight needs to be incompletely opened, after completing step S106-1, execute the following steps:

[0080] Step S107-2: When the fourth trigger state is sensed, in response to the fourth trigger state, the shipborne dome descends from the second speed to zero. At this time, the shipborne dome will stop before the first stop position 1, achieving a small-angle opening of the first angle.

[0081] Alternatively, after completing step S106-1, the following steps are executed:

[0082] Taking clockwise rotation as an example, a first control position 3 and / or a second control position 4 are set before the first deceleration position 2. When the sixth trigger state at the first control position 3 or the second control position 4 is detected, the second speed of the shipborne dome is controlled to be zero, and the dome skylight is opened at a second angle.

[0083] 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.

[0084] 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 shipborne 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 shipborne dome, and the dome control unit 100 executes the following steps:

[0085] Step S202-1: Based on the instruction of the timing control unit 100, control the drive unit 300 to make the shipborne dome 20 and the dome skylight 10 rotate clockwise from the stationary state at a first speed.

[0086] Step S203-1: The dome control unit 100 sends an execution message 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 shipborne dome decelerates and continues to rotate clockwise.

[0087] 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 shipborne dome 20, and complete the reset of the shipborne dome 20.

[0088] 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 shipborne dome, and the dome skylight is locked with the fixing mechanism 30.

[0089] Step S206-1: Control the driving unit 300 to rotate the on-ship dome 20 counterclockwise at the second speed.

[0090] Step S207-1: When the on-ship dome 20 rotates counterclockwise at the second speed, detect whether the triggering state of the magnetic induction unit at the second deceleration position 7 is sensed;

[0091] If not sensed, the on-ship dome remains rotating counterclockwise at the second speed;

[0092] When the magnetic induction unit at the second deceleration position 7 is sensed, the on-ship dome decelerates and then continues to rotate counterclockwise. When the magnetic induction unit at the second stop position 5 is detected, execute Step S208-1.

[0093] Step S208-1: In response to the magnetic induction unit at the second stop position 5, control the driving unit to stop the rotation of the on-ship dome. At this time, the steps for completely closing the dome skylight are completed.

[0094] In other embodiments, an incomplete closing instruction can be executed during the closing process.

[0095] In other embodiments, an instruction to change from fully opening the dome skylight to partially closing it, an instruction to change from partially opening to fully opening, or an instruction to change 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.

[0096] The dome control unit of the present invention adopts an FPGA and DSP architecture, is placed inside the on-ship 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 on-ship dome skylight control panel 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 12-bit voltages with a resolution of 1.22 mV, and the maximum rotation speed of the on-ship dome is 20° / s.

[0097] Figure 6 Shows the data processing flow of the dome control unit 100.

[0098] 1. Set the DA output to 0 to keep the on-ship dome in a stopped state;

[0099] 2. There is a 100 Hz timer inside the program, and it is queried through the internal timer flag bit whether to enter the timer interrupt;

[0100] 3. If not entering the timer interrupt, keep the on-ship dome stationary;

[0101] 4. If a timer interrupt occurs, read the trigger status of the external magnetic induction unit to determine the mechanical locking state and mechanical opening state of the dome skylight.

[0102] 5. If the mechanical locking state of the dome skylight is in the locked state and the mechanical opening state 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, set the dome skylight mechanical mechanism to the open state, and set the DA output to 0.

[0103] 6. If the mechanical locking state of the dome skylight is in the unlocked state and the mechanical opening state is in the opened state, then enter the process of reading the key status of the dome skylight control panel.

[0104] 7. If the status 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.

[0105] 8. If the status 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.

[0106] 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 interpretation of the name meaning as the above embodiment, it has the same technical effects as the above embodiment, and will not be elaborated here.

[0107] As Figure 2 shown, the present invention discloses a control system for a shipborne dome skylight, including:

[0108] A timing control unit 400, which is used to judge whether the system enters a timer interrupt;

[0109] A drive unit 300, which is used to control the rotation speed of the shipborne dome;

[0110] A magnetic induction unit 200, which includes multiple trigger points at fixed positions, and judges the rotation position of the shipborne dome through the trigger status of the trigger points;

[0111] A dome control unit 100, based on the instructions of the timing control unit, in response to the trigger status of the magnetic induction unit, controls the drive unit to control the program for the shipborne dome to open or close;

[0112] A display terminal 500, which is used to display the execution status of the shipborne dome.

[0113] Among them, the magnetic induction unit is a magnetic induction proximity switch; the timing control unit is a timer.

[0114] 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 to enable the at least one processor to execute the method steps described in the above embodiments.

[0115] 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 described in the above embodiments.

Claims

1. A control method for a shipborne dome skylight, characterized in that, Including: Based on the instructions of the timing control unit, control the drive unit to make the shipborne dome and the dome skylight rotate from the stationary state at a first speed and in a first direction; Send the execution status to the display terminal, and at the same time, in response to the first trigger state of the magnetic induction unit, control the drive unit to stop the rotation of the shipborne dome and complete the reset of the shipborne dome; In response to the third trigger state of the magnetic induction unit, disengage the shipborne dome from the dome skylight, and control the drive unit to make the shipborne dome rotate at a second speed and in a second direction, where the first direction is opposite to the second direction; In response to the fifth trigger state of the magnetic induction unit, control the drive unit to stop the rotation of the shipborne dome; Among them, the step of sending the execution status to the display terminal, and at the same time, in response to the first trigger state of the magnetic induction unit, controlling the drive unit to stop the rotation of the shipborne dome and complete the reset of the shipborne dome includes: Send the execution status to the display terminal, and when the shipborne dome rotates at a first speed and in a first direction, detect whether the second trigger state of the magnetic induction unit is sensed; 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, make the shipborne dome drop from the first speed to a third speed through the drive unit, and maintain the third speed and continue to rotate in the first direction; When the first trigger state is sensed, control the drive unit to stop the rotation of the shipborne dome and complete the reset of the shipborne dome; Among them, the first direction is the rotation direction in which the shipborne dome first senses the second trigger state and then senses the first trigger state.

2. The control method according to claim 1, characterized in that Before the step of, in response to the fifth trigger state of the magnetic induction unit, controlling the drive unit to stop the rotation of the shipborne dome, it includes: When the shipborne dome rotates at a second speed and in a second direction, detect whether the fourth trigger state of the magnetic induction 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 drops from the second speed to a fourth speed and maintains the fourth speed and continues to rotate in the second direction.

3. The control method according to claim 2, wherein When the execution status is that the dome skylight is opening or closing, when the shipborne dome senses the fifth trigger state, control the drive unit to stop the rotation of the shipborne dome and make the dome skylight fully open or close; Or, the execution status is that the dome skylight is opening or closing, and when the fourth trigger state is sensed, the shipborne dome drops from the second speed to zero and makes the dome skylight open at a first angle.

4. The control method according to claim 2, characterized in that, The step of, when the shipborne dome rotates at a second speed and in a second direction, detecting whether the fourth trigger state of the magnetic induction unit is sensed includes: If the fourth trigger state is not sensed, but the sixth trigger state is detected, control the second speed of the on-ship dome to be zero, and open the dome skylight at a second angle.

5. The control method according to claim 1, wherein The timing control unit includes: a timer, which queries whether it enters the timer interrupt through the timer flag bit; if it does not enter the timer interrupt, maintain the stationary state of the on-ship dome.

6. The control method according to claim 1, wherein 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.

7. A control system for a shipborne dome skylight, characterized in that, Execute the control method according to any one of claims 1-6, including: A timing control unit for determining whether the system enters a timer interrupt; A drive unit for controlling the rotation speed of the on-ship dome; A magnetic induction unit, including a plurality of trigger points at fixed positions, and judging the rotation position of the on-ship dome through 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 the opening or closing procedure; A display terminal for displaying the execution status of the on-ship dome.

8. The control system according to claim 7, wherein The dome control unit adopts an FPGA and DSP architecture.

9. The control system according to claim 7, wherein, 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.

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