Imaging device

Abstract

The present disclosure provides a camera device, belonging to the field of video surveillance. The camera device includes a protection structure, a camera assembly, and a power structure; a channel is provided inside the protection structure, a first part of the channel is located in the explosion-proof area of the ship, a second part of the channel is located in the non-explosion-proof area of the ship, and at least part of the side wall of the protection structure is transparent; the camera assembly is located inside the channel, and the camera assembly can move between the first part and the second part, and the camera assembly is used to monitor the non-explosion-proof area and the explosion-proof area through the transparent side wall of the protection structure; the power structure is used to drive the camera assembly to move inside the channel. Through the above camera device, the present disclosure can be widely applied in the explosion-proof area to monitor different positions in the explosion-proof area.

Description

Technical Field

[0001] The present disclosure belongs to the field of marine monitoring, and particularly relates to a camera device. Background Art

[0002] In the field of ships, especially in the cabins of tankers and liquefied gas carriers that involve explosion-proof areas. In order to improve the safety of ships, it is necessary to arrange camera devices in the cabins of the above explosion-proof areas so that managers can directly observe the situation inside the cabins.

[0003] In the related art, dedicated video monitoring devices with corresponding explosion-proof categories and levels are installed at different positions in the cabins of the explosion-proof areas to comprehensively monitor different areas in the cabins through multiple video monitoring devices.

[0004] Since it is necessary to arrange multiple video monitoring devices in the cabins of the explosion-proof areas. In this way, it will undoubtedly affect the arrangement and use of other electrical components in the cabins, resulting in the device being not conducive to being widely used. Summary of the Invention

[0005] An embodiment of the present disclosure provides a camera device, which can be directly applied in an explosion-proof area for monitoring. The technical solution is as follows:

[0006] An embodiment of the present disclosure provides a camera device, which includes a protection structure, a camera component, and a power structure; a channel is provided inside the protection structure, a first part of the channel is located in the explosion-proof area of the ship, a second part of the channel is located in the non-explosion-proof area of the ship, and at least part of the side wall of the protection structure is transparent; the camera component is located in the channel, and the camera component can move between the first part and the second part, and the camera component is used to monitor the non-explosion-proof area and the explosion-proof area through the transparent side wall of the protection structure; the power structure is used to drive the camera component to move in the channel.

[0007] In another implementation manner of the present disclosure, the power structure includes a pneumatic driving device, a telescopic elastic tube, and an accumulator. The pneumatic driving device is located in the non-explosion-proof area, an exhaust port of the pneumatic driving device is communicated with the inside of the channel, and the exhaust port is located on a first side of the camera component. The pneumatic driving device is used to inflate the channel through the exhaust port to drive the camera component to move in the channel towards a second side of the camera component. The first side and the second side are opposite sides of the camera component; the telescopic elastic tube is located in the channel and on the second side of the camera component. A first end of the telescopic elastic tube is in contact with the camera component, and a second end of the telescopic elastic tube is communicated with an air storage cavity of the accumulator; the accumulator is located in the non-explosion-proof area.

[0008] In another implementation of the present disclosure, the pneumatic driving device includes a high-pressure gas source and a solenoid valve. The high-pressure gas source is communicated with the air inlet of the solenoid valve. The working port of the solenoid valve is communicated with the channel, and the exhaust port of the solenoid valve is communicated with the outside.

[0009] In another implementation of the present disclosure, the imaging assembly includes an imaging bracket and at least one camera. The at least one camera is fixed on the imaging bracket. The imaging bracket is movably located in the channel and divides the channel into a first cavity and a second cavity. The telescopic elastic tube is located in the second cavity and contacts the imaging bracket. The exhaust port is located in the first cavity.

[0010] In another implementation of the present disclosure, the imaging bracket includes a ball head and at least one support plate; the at least one support plate is connected to one side of the ball head. The plane where the support plate is located is parallel to the axis of the channel. The other side of the ball head contacts the first end of the telescopic elastic tube; the at least one camera corresponds to the at least one support plate one by one and is fixed on the corresponding support plate.

[0011] In another implementation of the present disclosure, the imaging bracket further includes a hemispherical shell. The ball head and the hemispherical shell are respectively connected to the support plate, and the ball head and the hemispherical shell are respectively located on both sides of the support plate along the moving direction of the imaging assembly. The hemispherical shell has a concave groove, and the notch of the concave groove faces the first side.

[0012] In another implementation of the present disclosure, there are two support plates, and the two support plates are arranged in parallel, and there are two cameras.

[0013] In another implementation of the present disclosure, the protection structure is a tubular structural member. The first end and the second end of the protection structure are located in the non-explosion-proof area, and the middle part of the protection structure is located in the explosion-proof area; the pneumatic driving device is connected to the first end of the protection structure, and the accumulator is connected to the second end of the protection structure.

[0014] In another implementation of the present disclosure, the imaging device further includes a detection structure. The detection structure includes a pressure sensor and a position sensor; the position sensor is connected to the accumulator and is used to detect the position of the piston of the accumulator; the pressure sensor is connected to the accumulator and is used to detect the air pressure in the air storage cavity of the accumulator.

[0015] In another implementation of the present disclosure, the imaging device further includes a terminal. The terminal is located in the non-explosion-proof area, and the terminal is electrically connected to the imaging assembly.

[0016] The beneficial effects brought by the technical solutions provided in the embodiments of the present disclosure are as follows:

[0017] When the camera device provided in the embodiments of the present disclosure monitors the explosion-proof area of a ship, the camera assembly can be protected by the protection structure, avoiding damage to the camera assembly when it is in the explosion-proof area, so that the camera assembly can be safely located in the explosion-proof area of the ship.

[0018] Moreover, since the camera assembly can move along the channel inside the protection structure under the drive of the power structure, in this way, the situation of multiple positions in the explosion-proof area of the ship can be photographed by one camera assembly, avoiding arranging multiple camera assemblies in the cabins of the explosion-proof area and affecting the use of other equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present disclosure. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 is a schematic structural diagram of the camera device provided in the embodiments of the present disclosure;

[0021] Figure 2 is a schematic structural diagram of the protection structure provided in the embodiments of the present disclosure;

[0022] Figure 3 is a partial schematic structural diagram of the power structure provided in the embodiments of the present disclosure;

[0023] Figure 4 is a schematic structural diagram of the accumulator provided in the embodiments of the present disclosure;

[0024] Figure 5 is a schematic structural diagram of the camera assembly provided in the embodiments of the present disclosure;

[0025] Figure 6 is a schematic diagram of the first use state of the camera device provided in the embodiments of the present disclosure;

[0026] Figure 7 is a schematic diagram of the second use state of the camera device provided in the embodiments of the present disclosure.

[0027] The meanings represented by the symbols in the figure are as follows:

[0028] 1. Protection structure; 10. Channel; 11. First pipe section; 12. Second pipe section; 13. Third pipe section;

[0029] 2. Camera assembly; 21. Camera bracket; 211. Ball head; 212. Support plate; 213. Hemispherical housing; 2131. Concave groove; 22. Camera;

[0030] 3. Power structure; 31. Pneumatic drive device; 311. High-pressure gas source; 312. Solenoid valve; 32. Telescopic elastic tube; 33. Accumulator; 331. Housing; 3311. Gas storage chamber; 3312. Non-gas storage chamber; 332. Piston; 333. Elastic member;

[0031] 4. Terminal;

[0032] 5. Detection structure; 51. Pressure sensor; 52. Position sensor. Detailed implementation manner

[0033] To make the objectives, technical solutions and advantages of the present disclosure clearer, the following will further describe the embodiments of the present disclosure in detail with reference to the accompanying drawings.

[0034] The embodiment of the present disclosure provides a camera device, as Figure 1 shown. The camera device includes a protection structure 1, a camera assembly 2, and a power structure 3. The protection structure 1 has a channel 10 inside. The first part of the channel 10 is located in the explosion-proof area of the ship, and the second part of the channel 10 is located in the non-explosion-proof area of the ship. At least part of the side wall of the protection structure 1 is transparent.

[0035] The camera assembly 2 is located in the channel 10, and the camera assembly 2 can move between the first part and the second part. The camera assembly 2 is used to monitor the non-explosion-proof area and the explosion-proof area through the transparent side wall of the protection structure 1. The power structure 3 is used to drive the camera assembly 2 to move in the channel 10.

[0036] When the camera device provided by the embodiment of the present disclosure monitors the explosion-proof area of the ship, the camera assembly 2 can be protected through the protection structure 1, avoiding damage to the camera assembly 2 when it is in the explosion-proof area, so that the camera assembly 2 can be safely located in the explosion-proof area of the ship.

[0037] Moreover, since the camera assembly 2 can move along the channel 10 inside the protection structure 1 under the drive of the power structure 3, in this way, the situation of multiple positions in the explosion-proof area of the ship can be photographed by one camera assembly 2, avoiding arranging multiple camera assemblies 2 in the cabins of the explosion-proof area and affecting the use of other devices.

[0038] That is to say, since the imaging component 2 in the imaging device can be protected by the protection structure 1 and can be moved under the drive of the power structure 3, in this way, the explosion-proof area can be comprehensively monitored by one imaging component 2, so that the imaging device is widely used in ships.

[0039] In this embodiment, the imaging component 2 includes ordinary non-explosion-proof category and level video surveillance equipment. This can greatly reduce the cost of the imaging device and avoid the need to lay corresponding cables, fittings, etc. due to the use of special video surveillance equipment with corresponding explosion-proof categories and levels, so that the imaging component 2 can be widely used in ships.

[0040] Continue to refer to Figure 1 , exemplarily, in this embodiment, the explosion-proof area (i.e., the dangerous area) and the non-explosion-proof area (i.e., the safe area) of the ship are two independent cabins, and the explosion-proof area and the non-explosion-proof area are isolated by a wall.

[0041] Among them, the protection structure 1 passes through the wall, so that a part of the structure of the protection structure 1 is located in the cabin of the explosion-proof area of the ship, and another part of the structure of the protection structure 1 is located in the cabin of the non-explosion-proof area of the ship.

[0042] Optionally, the protection structure 1 is a tubular structural member. The first end and the second end of the protection structure 1 are located in the cabin of the non-explosion-proof area of the ship, and the middle part of the protection structure 1 is located in the cabin of the explosion-proof area.

[0043] In the above implementation manner, the protection structure 1 is set as a transparent plastic tubular structural member, so that the imaging component 2 can smoothly monitor the explosion-proof area of the ship through the tube wall of the protection structure 1, so as not to affect the imaging function of the imaging component 2.

[0044] Moreover, setting the protection structure 1 as a tubular structural member is also convenient for arranging in the explosion-proof area of the ship, and further limits the movement trajectory of the imaging component 2.

[0045] Exemplarily, the first end of the protection structure 1 is in a sealed state. The second end of the protection structure 1 is in a non-sealed state.

[0046] This can enable only the pneumatic drive device 31 to inflate the channel 10 between the first end of the protection structure 1 and the imaging component 2 to improve the driving effect of the pneumatic drive device 31. And the second end of the protection structure 1 is in a non-sealed state, so that the second end of the protection structure 1 is communicated with the outside, so that the air in the second end tube of the protection structure 1 can circulate.

[0047] Figure 2 For the structural schematic diagram of the protection structure provided by the embodiment of the present disclosure, in combination with Figure 2, Exemplarily, the protection structure 1 is a bent pipe structure. The protection structure 1 includes a first pipe section 11, a second pipe section 12, and a third pipe section 13 that are sequentially connected. Both the first pipe section 11 and the third pipe section 13 are L-shaped structures. The second pipe section 12 is a straight pipe section.

[0048] In the above implementation, the protection structure 1 is set as a bent pipe, which facilitates the corresponding structures at the first end and the second end of the protection structure 1 to be located in the non-explosion-proof area of the ship, while its middle part is located in the explosion-proof area, thereby defining the movement trajectory of the camera assembly 2.

[0049] Refer to again Figure 1 , The power structure 3 includes a pneumatic driving device 31, a telescopic elastic tube 32, and an accumulator 33. The pneumatic driving device 31 is located in the non-explosion-proof area. The exhaust port of the pneumatic driving device 31 is communicated with the inside of the channel 10, and the exhaust port is located on the first side of the camera assembly 2. The pneumatic driving device 31 is used to inflate the channel 10 through the exhaust port to drive the camera assembly 2 to move in the channel 10 towards the second side of the camera assembly 2. The first side and the second side are opposite sides of the camera assembly 2.

[0050] The telescopic elastic tube 32 is located in the channel 10 and on the second side of the camera assembly 2. The first end of the telescopic elastic tube 32 is in contact with the camera assembly 2, and the second end of the telescopic elastic tube 32 is communicated with the gas storage cavity of the accumulator 33. The accumulator 33 is located in the non-explosion-proof area.

[0051] In the above implementation, setting the power structure 3 as the above structure can inflate the channel 10 through the pneumatic driving device 31 to drive the camera assembly 2 to move in the channel 10 towards the second side of the camera assembly 2, so that the camera assembly 2 can perform camera monitoring on different positions in the explosion-proof area. Moreover, using the pneumatic driving device 31 to drive the camera assembly 2 to move can greatly improve the safety of the camera device, and at the same time, the structure is simple and the cost is low, and it can be widely used.

[0052] The telescopic elastic tube 32 is used to be compressed under the push of the camera assembly 2. On the one hand, it provides a moving space for the camera assembly 2, and on the other hand, it can inflate the accumulator 33 through its own compression, so as to cooperate with the accumulator 33 to reset the camera assembly 2.

[0053] That is to say, when the camera assembly 2 needs to move in the channel 10 towards the second side of the camera assembly 2, at this time, the channel 10 can be inflated through the exhaust port of the pneumatic driving device 31 to drive the camera assembly 2 to move and compress the telescopic elastic tube 32 (refer to Figure 3 ), and the telescopic elastic tube 32 inflates the gas storage cavity of the accumulator 33.

[0054] When the imaging component 2 needs to move to the first side of the imaging component 2 in the channel 10, the pneumatic driving device 31 stops inflating the channel 10 at this time. The accumulator 33 deflates the telescopic elastic tube 32, and the telescopic elastic tube 32 changes from the original telescopic state to the extended state, driving the imaging component 2 to move to the first side of the imaging component 2.

[0055] Exemplarily, the telescopic elastic tube 32 is an elastic conductive rubber tube. In this way, the telescopic elastic tube 32 is easy to bend and can adapt to the bent protection structure 1. Moreover, the telescopic elastic tube 32 is a conductor, so that when it moves, the static electricity generated between it and the inner wall of the protection structure 1 due to friction can be released, making the telescopic elastic tube 32 in an electrostatic shielding state and further improving safety.

[0056] Of course, the power structure 3 is not limited to the above structure and can also be other structures. For example, a motor-driven trolley. At this time, the imaging component 2 is connected to the trolley, and the movement of the trolley drives the imaging component to move. That is to say, as long as the power structure 3 can drive the imaging component 2 to move in the channel 10 according to the specific structure of the power structure 3, the present disclosure does not limit this. Correspondingly, the connection relationship between the power structure 3 and the imaging component 2 is not limited either, and it can be a connection relationship or the contact mentioned above.

[0057] Figure 4 Schematic diagram of the structure of the accumulator provided by the embodiment of the present disclosure, in combination with Figure 4 Exemplarily, the accumulator 33 is a conventional spring plus piston structure.

[0058] The accumulator 33 includes a housing 331, a piston 332, and an elastic member 333. The piston 332 is movably located in the housing 331 and divides the housing 331 into a gas storage chamber 3311 and a non-gas storage chamber 3312. The elastic member 333 is located in the non-gas storage chamber 3312, and the first end of the elastic member 333 is connected to the inner wall of the housing 331, and the second end of the elastic member 333 is connected to the piston 332. The air inlet of the accumulator 33 is communicated with the gas storage chamber 3311.

[0059] When the accumulator 33 is inflated through the air inlet, the elastic member 333 of the accumulator 33 will be compressed, and when the inflation of the accumulator 33 stops, the gas storage chamber 3311 in the accumulator 33 will exhaust air outward under the action of the elastic member 333.

[0060] Exemplarily, the elastic member 333 is a telescopic spring structure member.

[0061] See again Figure 1, optionally, the pneumatic driving device 31 includes a high-pressure gas source 311 and a solenoid valve 312. The high-pressure gas source 311 is communicated with the air inlet of the solenoid valve 312. The working port of the solenoid valve 312 is communicated with the channel 10, and the exhaust port of the solenoid valve 312 is communicated with the outside. The working port of the solenoid valve 312 forms the exhaust port of the pneumatic driving device 31.

[0062] In the above implementation, the pneumatic driving device 31 is set to the above structure, so that the high-pressure gas source 311 can be used as the power to drive the camera assembly 2 to move in the channel 10. At the same time, the solenoid valve 312 can be used to control whether to input the gas in the high-pressure gas source 311 into the channel 10, so as to be able to cut off or connect the high-pressure gas source 311 and the channel 10 in real time.

[0063] Exemplarily, the high-pressure gas source 311 can be a pressure air source on a ship, which can facilitate the access of the gas source and reduce the application threshold of the camera device at the same time.

[0064] Exemplarily, the high-pressure gas source 311 is connected to the first end of the protection structure 1, and the accumulator 33 is connected to the second end of the protection structure 1. In this way, the high-pressure gas source 311 and the accumulator 33 can be located in the non-explosion-proof area, improving the safety of their use.

[0065] Moreover, in order to facilitate the connection between the telescopic elastic tube 32 and the protection structure 1, a fixator is provided at the second end of the protection structure 1. The fixator is used to fix the telescopic elastic tube 32 at the second end of the protection structure 1, so as to facilitate the connection of the accumulator 33. For example, the fixator can be a clamp, a screw sleeve, etc. As long as the end of the telescopic elastic tube 32 can be fixed on the protection structure 1, the present disclosure does not limit the above structure.

[0066] Figure 5 is a schematic structural diagram of the camera assembly provided by the embodiment of the present disclosure. In combination with Figure 5 , the camera assembly 2 includes a camera bracket 21 and at least one camera 22. At least one camera 22 is fixed on the camera bracket 21, and at least one camera 22 faces the transparent side wall of the protection structure 1. The camera bracket 21 is movably located in the channel 10, and divides the channel 10 into a first cavity and a second cavity. The telescopic elastic tube 32 is located in the second cavity and contacts the camera bracket 21, and the exhaust port is located in the first cavity.

[0067] In the above implementation, the camera assembly 2 is set to the above structure, so that the camera 22 can be fixed by the camera bracket 21, and the movement of the camera 22 can be driven by driving the movement of the camera bracket 21, thereby facilitating the camera 22 to take pictures and monitor different positions in the explosion-proof area.

[0068] Optionally, the camera support 21 includes a ball head 211 and at least one support plate 212. Each of the at least one support plate 212 is connected to one side of the ball head 211. The plane where the support plate 212 is located is parallel to the axis of the channel 10. The other side of the ball head 211 contacts the first end of the telescopic elastic tube 32. Each of the at least one camera 22 corresponds to one of the at least one support plate 212 and is fixed on the corresponding support plate 212.

[0069] In the above implementation, by setting the camera support 21 as the ball head 211 and the support plate 212, the support plate 212 can provide an installation base for the camera 22, and at the same time, the spherical surface of the ball head 211 can be closely attached to the telescopic elastic tube 32 to prevent the occurrence of an air cushion phenomenon between the camera 22 and the end of the telescopic elastic tube 32.

[0070] Optionally, the camera support 21 further includes a hemispherical housing 213. The ball head 211 and the hemispherical housing 213 are respectively connected to the support plate 212, and the ball head 211 and the hemispherical housing 213 are located on both sides of the support plate 212 along the moving direction of the camera assembly 2. The hemispherical housing 213 has a concave groove 2131, and the notch of the concave groove 2131 faces the first side. A wire passing hole is provided on the hemispherical housing 213. The cable connecting wire of the camera 22 passes through the wire passing hole and the first chamber to be connected to an external power supply.

[0071] In the above implementation, through the cooperation between the hemispherical housing 213 and the ball head 211, the wind resistance encountered by the head of the camera assembly 2 (the side facing the telescopic elastic tube 32, that is, the ball head 211) can be made smaller than the wind resistance encountered by the tail (the side away from the telescopic elastic tube 32, that is, the hemispherical housing 213), and the cable of the camera 22 can be received through the concave groove 2131 of the hemispherical housing 213 to avoid the cable being squeezed into the gap between the camera 22 and the protection structure 1.

[0072] Optionally, there are two support plates 212, and the two support plates 212 are arranged in parallel. There are two cameras 22, and the two cameras 22 are arranged corresponding to the two support plates 212 one by one, and the camera 22 is connected to the corresponding support plate 212.

[0073] In the above implementation, by setting two support plates 212, the two cameras 22 can be conveniently fixed, so as to provide an observation function with different perspectives for all the observation parts on the moving path of the camera assembly 2 through the two cameras 22, thereby improving the monitoring effect.

[0074] Exemplarily, the ball head 211, the support plate 212, and the hemispherical housing 213 can all be plastic structural parts (such as PVC, Polyvinyl chloride, polyvinyl chloride structural parts), which is convenient for reducing the weight of the camera support 21 so as to facilitate its movement in the channel 10.

[0075] The camera 22 is fixed on the pallet 212 by means of bolt fastening. This facilitates the fixing of the camera 22 on the camera support 21.

[0076] The hemispherical housing 213 and the ball head 211 are connected to the pallet 212 by means of adhesive fixation. This facilitates the fixing of the hemispherical housing 213 and the ball head 211 on the pallet 212. Of course, other connection methods may also be used between the hemispherical housing 213, the ball head 211 and the pallet 212, such as a snap connection method, that is, a positioning protrusion or the like is provided on the hemispherical housing 213 or the ball head 211, and corresponding grooves are arranged on the pallet 212, and the protrusion is snap-fitted into the corresponding groove.

[0077] Refer to again Figure 1 , optionally, the imaging device further includes a terminal 4, the terminal 4 is located in a non-explosion-proof area, and the terminal 4 is electrically connected to the imaging assembly 2.

[0078] In the above implementation, the terminal 4 can perform real-time online display and storage of the video images monitored in the imaging assembly 2, so as to facilitate the crew to view.

[0079] Optionally, the imaging device further includes a detection structure 5, and the detection structure 5 includes a pressure sensor 51 and a position sensor 52. The position sensor 52 is connected to the accumulator 33 and is used to detect the position of the piston of the accumulator 33. The pressure sensor 51 is connected to the accumulator 33 and is used to detect the air pressure in the gas storage cavity. Both the pressure sensor 51 and the position sensor 52 are electrically connected to the terminal 4.

[0080] In the above implementation, the pressure sensor 51 is used to detect the pressure in the gas storage cavity of the accumulator 33, so as to facilitate the real-time understanding of the pressure in the gas storage cavity of the accumulator 33.

[0081] The position sensor 52 is used to detect the position of the piston of the accumulator 33 in real time, so as to monitor the working state of the accumulator 33.

[0082] The position of the piston of the accumulator 33 mentioned above is the position height of the piston of the accumulator 33 relative to the top of the gas storage cavity.

[0083] Exemplarily, the pressure sensor 51 and the position sensor 52 are electrically connected to the terminal 4, so that the information detected by the pressure sensor 51 and the position sensor 52 can be displayed in real time through the terminal 4.

[0084] The information about the pressure in the gas storage cavity of the accumulator 33 and the position of the piston collected by the terminal 4 can be used to calculate the total air volume in the telescopic elastic tube 32 and the accumulator 33 based on the change in the pressure and position information, thereby estimating the current length of the telescopic elastic tube 32, and further realizing the estimation of the position of the camera 22 in the protection structure 1 so that the camera 22 can be fixed at the required position.

[0085] That is to say, by controlling the opening and closing of the solenoid valve 312, the air pressure in the passage 10 can be increased or decreased, thereby controlling the camera 22 to be located at different positions in the passage 10.

[0086] The following combines Figure 6 and Figure 7 to briefly introduce the working mode of the camera device provided by the embodiment of the present disclosure:

[0087] In this embodiment, the camera device provided is located in the explosion-proof area and the non-explosion-proof area, and the object to be monitored is located in the cabin of the explosion-proof area.

[0088] Figure 6 FIG. is a schematic diagram of the first use state of the camera device provided by the embodiment of the present disclosure. Combining Figure 6 , in the initial state, the pressure in the gas storage cavity of the accumulator 33 is the same as the external pressure, the elastic member 333 of the accumulator 33 is not stressed, the length of the telescopic elastic tube 32 is in the longest state (i.e., the initial state), and the camera assembly 2 is located at the starting position (that is, at the first end of the protection structure 1).

[0089] Then, control the solenoid valve 312 to connect to the high-pressure gas source 311, and the high-pressure gas enters the first end of the protection structure 1 (such as Figure 6 ). Since the first end of the protection structure 1 is in a sealed state, the high-pressure gas can only leak backward through the gap between the telescopic elastic tube 32 and the tube wall of the protection structure 1. At the same time, the pressure in the first end of the protection structure 1 rises, and the camera assembly 2 is pushed by the air pressure towards one end of the accumulator 33 (that is, Figure 6 to the right in the figure), the length of the telescopic elastic tube 32 is compressed, the pressure in the gas storage cavity of the accumulator 33 rises, and the piston 332 moves upward.

[0090] The terminal 4 collects the information about the pressure in the gas storage cavity of the accumulator 33 and the position of the piston 332, and can calculate the total air volume of the pressure in the telescopic elastic tube 32 and the gas storage cavity of the accumulator 33 based on the change amount, thereby estimating the current length of the telescopic elastic tube 32, and further realizing the estimation of the position of the camera 22 in the protection structure 1. That is, by controlling the solenoid valve 312 to adjust the air pressure in the first end of the protection structure 1 to increase or decrease, thereby realizing the control of the position of the camera 22 in the protection structure 1.

[0091] Figure 7 Schematic diagram of the second usage state of the imaging device provided by the embodiment of the present disclosure, in combination with Figure 7 . When it is necessary for the camera 22 to move from the second end to the first end of the protection structure 1, it is only necessary to control the solenoid valve 312 to connect the inside of the protection structure 1 with the exhaust pipe, and the air pressure inside the protection structure 1 will decrease. The originally compressed elastic member 333 in the accumulator 33 starts to recover its length downward, and the length of the telescopic elastic tube 32 starts to elongate, thereby pushing the camera 22 to move from the second end to the first end of the protection structure 1.

[0092] The above are only optional embodiments of the present disclosure and are not intended to limit the present disclosure. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present disclosure shall be included within the protection scope of the present disclosure.

Claims

1. An imaging device, characterized in that, The camera device includes a protective structure (1), a camera assembly (2), and a power structure (3); The protective structure (1) has a channel (10) inside. The first part of the channel (10) is located in the explosion-proof area of the ship, and the second part of the channel (10) is located in the non-explosion-proof area of the ship. At least part of the side wall of the protective structure (1) is transparent; The camera assembly (2) is located in the channel (10), and the camera assembly (2) can move between the first part and the second part. The camera assembly (2) is used to monitor the non-explosion-proof area and the explosion-proof area through the transparent side wall of the protective structure (1); The power structure (3) is used to drive the camera assembly (2) to move in the channel (10). The power structure (3) includes a pneumatic driving device (31), a telescopic elastic tube (32), and an accumulator (33). The pneumatic driving device (31) is located in the non-explosion-proof area. The exhaust port of the pneumatic driving device (31) is communicated with the inside of the channel (10), and the exhaust port is located on the first side of the camera assembly (2). The pneumatic driving device (31) is used to inflate the channel (10) through the exhaust port to drive the camera assembly (2) to move in the channel (10) to the second side of the camera assembly (2). The first side and the second side are opposite sides of the camera assembly (2). The telescopic elastic tube (32) is located in the channel (10) and on the second side of the camera assembly (2). The first end of the telescopic elastic tube (32) is in contact with the camera assembly (2), and the second end of the telescopic elastic tube (32) is communicated with the air storage cavity of the accumulator (33). The accumulator (33) is located in the non-explosion-proof area.

2. The imaging device according to claim 1, characterized in that, The pneumatic driving device (31) includes a high-pressure air source (311) and a solenoid valve (312); The high-pressure air source (311) is communicated with the intake port of the solenoid valve (312). The working port of the solenoid valve (312) is communicated with the channel (10), and the exhaust port of the solenoid valve (312) is communicated with the outside.

3. The imaging device according to claim 1, characterized in that, The camera assembly (2) includes a camera bracket (21) and at least one camera (22). The at least one camera (22) is fixed on the camera bracket (21); The camera bracket (21) is movably located in the channel (10) and divides the channel (10) into a first cavity and a second cavity. The telescopic elastic tube (32) is located in the second cavity and is in contact with the camera bracket (21). The exhaust port is located in the first cavity.

4. The imaging device according to claim 3, characterized in that, The camera bracket (21) includes a ball head (211) and at least one support plate (212); The at least one support plate (212) is connected to one side of the ball head (211). The plane where the support plate (212) is located is parallel to the axis of the channel (10). The other side of the ball head (211) is in contact with the first end of the telescopic elastic tube (32); The at least one camera (22) corresponds to the at least one pallet (212) one by one and is fixed on the corresponding pallet (212).

5. The imaging device according to claim 4, wherein, The camera support (21) further includes a hemispherical housing (213). The ball head (211) and the hemispherical housing (213) are respectively connected to the pallet (212), and the ball head (211) and the hemispherical housing (213) are located on both sides of the pallet (212) along the moving direction of the camera assembly (2). The hemispherical housing (213) has a concave groove (2131), and the notch of the concave groove (2131) faces the first side.

6. The imaging device according to claim 5, characterized in that, There are two pallets (212), and the two pallets (212) are arranged in parallel. There are two cameras (22).

7. The imaging device according to claim 1, characterized in that, The protection structure (1) is a tubular structural member. The first end and the second end of the protection structure (1) are located in the non-explosion-proof area, and the middle part of the protection structure (1) is located in the explosion-proof area. The pneumatic drive device (31) is connected to the first end of the protection structure (1), and the accumulator (33) is connected to the second end of the protection structure (1).

8. The imaging device according to claim 1, characterized in that, The camera device further includes a detection structure (5), and the detection structure (5) includes a pressure sensor (51) and a position sensor (52). The position sensor (52) is connected to the accumulator (33) and is used to detect the position of the piston of the accumulator (33). The pressure sensor (51) is connected to the accumulator (33) and is used to detect the air pressure in the air storage cavity of the accumulator (33).

9. The imaging device according to any one of claims 1-8, characterized in that, The camera device further includes a terminal (4). The terminal (4) is located in the non-explosion-proof area, and the terminal (4) is electrically connected to the camera assembly (2).

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