KR102593353B1 - Marine and industrial long range surveilance camera - Google Patents

Abstract

The present invention relates to a long-distance imaging device for a ship, wherein the long-distance imaging device for a ship includes an imaging camera provided on one side of a camera body; A thermal imaging camera provided on one side of the imaging camera and formed integrally with an infrared light-emitting diode (Infrared Light-Emitting Diode) that aligns the imaging camera and the center to emit light; a center alignment unit that controls the center of the infrared LED to be aligned with the imaging camera; An irradiation angle control unit that adjusts the irradiation angle of the infrared LED to be synchronized with the zoom magnification of the imaging camera so that the irradiation angle of the infrared LED matches the viewing angle of the imaging camera; and a control unit that controls the center alignment unit and the irradiation angle adjustment unit, wherein the control unit checks the zoom position of the imaging camera and controls the irradiation angle of the infrared LED to match the zoom position of the imaging camera. Do it as

Description

Long-distance imaging device for ships {MARINE AND INDUSTRIAL LONG RANGE SURVEILANCE CAMERA}

The present invention relates to a long-distance imaging device for ships, and to a long-distance imaging device for ships that expands the shooting range by focusing an imaging camera and an infrared LED.

In general, an infrared LED is simply applied to a camera as a device for taking long-distance images when operating a ship. As a result, filming was possible at night from a distance of about 45m, making long-distance surveillance difficult.

In addition, technology for long-term exposure to seawater and sea breezes had to be applied, and the size and weight had to be improved as it required a weight reduction of more than 30% compared to general land products. There were also limitations in the night-time surveillance function and detection range. , there was a need to develop a product with a waterproof function that was higher than living water resistance or at a submersible level.

Furthermore, in the past, the focus of the infrared LED and the imaging camera did not match, making it difficult to take accurate photos when shooting at night because the point where the imaging camera shoots and the point where the infrared LED illuminates are different.

The present invention aims to solve the above-mentioned problems and other problems. Another purpose is to provide a long-distance imaging device for ships.

According to one aspect of the present invention to achieve the above or other objects, there is provided an imaging camera provided on one side of a camera body; A thermal imaging camera provided on one side of the imaging camera and formed integrally with an infrared light-emitting diode (Infrared Light-Emitting Diode) that aligns the imaging camera and the center to emit light; a center alignment unit that controls the center of the infrared LED to be aligned with the imaging camera; An irradiation angle control unit that adjusts the irradiation angle of the infrared LED to be synchronized with the zoom magnification of the imaging camera so that the irradiation angle of the infrared LED matches the viewing angle of the imaging camera; And a control unit that controls the center alignment unit and the irradiation angle adjustment unit, wherein the control unit checks the zoom position of the imaging camera and controls the irradiation angle of the infrared LED to match the zoom position of the imaging camera. Imaging equipment can be provided.

According to one aspect of the present invention, the infrared LED and the thermal imaging camera are characterized in that they have a single head structure with an integrated dual lens structure.

According to one aspect of the present invention, the center alignment and irradiation angle adjustment can be adjusted by a screw-type angle-adjustable bracket.

According to one aspect of the present invention, the imaging camera and the infrared LED are connected to an interface board so that the irradiation angle of the infrared LED changes in real time in response to changes in the viewing angle of the imaging camera.

According to one aspect of the present invention, the imaging camera and the thermal imaging camera may be connected to a hub board, and the hub board may be connected to the display unit through a LAN cable.

The effects of the long-distance imaging device for ships according to the present invention will be described as follows.

According to at least one of the embodiments of the present invention, there is an advantage that the focus signal of the imaging device can be analyzed and synchronized by center alignment of the infrared LED. In other words, there is an advantage in being able to monitor from a greater distance by matching the center and angle of view of the infrared LED with the center and angle of view of the imaging camera.

According to at least one of the embodiments of the present invention, there is an advantage in that the product volume can be reduced by integrating the infrared LED and the thermal imaging camera. In other words, the infrared LED and thermal imaging camera have a single head structure rather than a dual head structure, which has the advantage of improving efficiency in terms of weight and securing installation space efficiency.

According to at least one of the embodiments of the present invention, there is an advantage of having a single structure by designing the imaging camera and the infrared LED or thermal imaging camera to be built into one device.

According to at least one of the embodiments of the present invention, there is an advantage in that photography is possible up to several kilometers during the day and up to 1 kilometer at night.

According to at least one of the embodiments of the present invention, it is possible to precisely adjust the tightening or loosening of the upper, lower, left, and right screws to facilitate center alignment and fixation of imaging cameras, infrared LEDs, and thermal imaging cameras by using screws. There is an advantage.

Further scope of applicability of the present invention will become apparent from the detailed description that follows. However, since various changes and modifications within the spirit and scope of the present invention may be clearly understood by those skilled in the art, the detailed description and specific embodiments, such as preferred embodiments of the present invention, should be understood as being given by way of example only.

1 is a perspective view of a long-distance imaging device for a ship related to the present invention.
Figure 2 is a schematic diagram for explaining a focus control method related to the present invention.
Figure 3 is a block diagram of a long-distance imaging device for a ship related to the present invention.
FIGS. 4A and 4B are diagrams for explaining the alignment of the focus of a camera and an infrared LED related to the present invention.
Figure 5 is a configuration diagram for focus adjustment according to an embodiment of the present invention.
Figure 6 is a connection diagram between a camera and a display unit related to the present invention.

Hereinafter, embodiments disclosed in the present specification will be described in detail with reference to the attached drawings. However, identical or similar components will be assigned the same reference numbers regardless of drawing symbols, and duplicate descriptions thereof will be omitted. The suffix "part" for the components used in the following description is given or used interchangeably only considering the ease of preparing the specification, and does not have a distinct meaning or role in itself. Additionally, in describing the embodiments disclosed in this specification, if it is determined that detailed descriptions of related known technologies may obscure the gist of the embodiments disclosed in this specification, the detailed descriptions will be omitted. In addition, the attached drawings are only for easy understanding of the embodiments disclosed in this specification, and the technical idea disclosed in this specification is not limited by the attached drawings, and all changes included in the spirit and technical scope of the present invention are not limited. , should be understood to include equivalents or substitutes.

Terms containing ordinal numbers, such as first, second, etc., may be used to describe various components, but the components are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

Singular expressions include plural expressions unless the context clearly dictates otherwise.

In this application, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

In one embodiment of the present invention, an infrared light-emitting diode (121) and a thermal imaging camera (120) are used for smoother shooting by the imaging camera (110) that captures images. More specifically, by ensuring that the infrared LED 121 is precisely aligned with the center of the imaging camera 110, it is possible to monitor a greater distance, and the irradiation angle of the infrared LED 121 is aligned with the angle of view of the imaging camera 110. By doing so, a long-distance imaging device 100 for a ship that suppresses the vignetting phenomenon is disclosed.

FIG. 1 is a perspective view of a long-distance imaging device 100 for a ship related to the present invention, FIG. 2 is a schematic diagram for explaining a focus adjustment method related to the present invention, and FIG. 3 is a view of a long-distance imaging device 100 for a ship related to the present invention. It is a block diagram, and FIGS. 4A and 4B are diagrams for explaining the alignment of the focus of the camera and the infrared LED 121 related to the present invention.

Hereinafter, the description will be made with reference to FIGS. 1 to 4B.

A long-distance imaging device for a ship according to an embodiment of the present invention includes an imaging camera 110 provided on one side of the camera body 101, and a center provided on one side of the imaging camera 110 and the imaging camera 110. A thermal imaging camera 120 formed integrally with an infrared light-emitting diode (121) that aligns and emits light, and controlling the center of the infrared LED 121 to be aligned with the imaging camera 110. The center alignment unit 123 and the imaging camera 110 zoom the irradiation angle of the infrared LED 121 so that the irradiation angle of the infrared LED 121 matches the angle of view of the imaging camera 110. It includes an irradiation angle adjusting unit 125 that adjusts the irradiation angle to be synchronized with the magnification, and a control unit 127 that controls the center alignment unit 123 and the irradiation angle adjusting unit 125. The center alignment unit 123 and the irradiation angle adjustment unit 125 may be provided within the camera body 101. In one embodiment of the present invention, according to the zoom distance of the imaging camera 110, the infrared LED 121 and the thermal imaging camera 120 are synchronized to a focus of the same distance as the zoom distance of the imaging camera 110. That is, the infrared LED 121 in one embodiment of the present invention is a motorized zoom infrared illuminator (Motorized Zoom Infrared LED) driven by a motor.

In one embodiment of the present invention, a longer distance is monitored using the imaging camera 110 and the infrared LED 121 during the day, and a longer distance is monitored using the infrared camera and the thermal imaging camera 120 at night. do.

A distant target is photographed by the imaging camera 110, and an infrared LED 121 is used to photograph a distant target, especially at night. If the point where the infrared LED 121 shines light and the point where the imaging camera 110 is aimed are different from each other, the target to be photographed cannot be accurately photographed. To prevent this, in one embodiment of the present invention, the center of the infrared LED 121 and the center of the imaging camera 110 are aligned by the center alignment unit 123. More specifically, Figure 4a shows a case where the center (+) of the imaging camera 110 and the center (center of the circle) of the infrared LED 121 do not coincide with each other, which is shown in Figure 4b by the imaging camera (+). The center of 110) and the center of the area where the infrared LED 121 illuminates are aligned.

In addition, even if the center of the imaging camera 110 and the center of the irradiation area of the infrared LED 121 match, if the angle of view of the imaging camera 110 and the irradiation angle of the infrared LED 121 do not match, a more accurate captured image may be obtained. You won't be able to get it. To solve this problem, in one embodiment of the present invention, the irradiation angle of the infrared LED 121 is adjusted in synchronization with the zoom magnification of the imaging camera 110. As a result, long-distance photography is possible using the imaging camera 110 at night. The distance that can be photographed by the imaging camera 110 is approximately 200 mm, and the distance that can be photographed during night photography by the thermal imaging camera 120 is approximately 1 km.

Center alignment and irradiation angle control of the infrared LED 121 are performed by the control unit 127, which checks the zoom position of the imaging camera 110 and controls the infrared LED 121. ) is controlled to match the zoom position of the imaging camera 110. For example, when the angle of view of the imaging camera 110 is α as shown in FIG. 2, the irradiation angle (β) of the infrared LED 121 must be equal to α. At this time, while fixing the angle of view or zoom position of the imaging camera 110, the center and irradiation angle of the infrared LED 121 are adjusted to match the center and angle of view of the imaging camera 110.

At this time, the infrared LED 121 and the thermal imaging camera 120 have a single head structure with an integrated dual lens structure. Although not specifically shown, the center alignment and irradiation angle adjustment can be easily adjusted up, down, left, and right by being controlled by a screw-type angle-adjustable bracket. In particular, the bracket may be provided with vertical adjustment screws at up and down positions, and left and right adjustment screws may be provided on the left and right sides of the bracket. The bracket is adjusted up and down by the up and down adjustment screw, and the bracket is adjusted left and right by the left and right adjustment screw. By driving the screw with a motor, it automatically operates to optimize the angle of view. Additionally, when using a stepping motor, it has a unidirectional control structure without feedback, so if a step-out occurs during use, there is no way to correct the position, so a fatal error may occur. In one embodiment of the present invention, in order to compensate for this, a curve is applied when controlling the irradiation angle of the infrared LED 121 to prevent sudden start/stop and fundamentally prevent step-out. The curve control allowed for smooth starting and stopping.

Meanwhile, in one embodiment of the present invention, an interface board 140 is provided to more quickly connect the imaging camera 110 and the thermal imaging camera 120. The interface board 140 uses a high-performance processor to confirm the real-time zoom position of the imaging camera 110 and control the position of the infrared LED 121 accordingly. For example, the imaging camera 110 may have a field of view of 2.25 to 65°. Within this range, the field of view of the imaging camera 110 changes in real time, and is synchronized with this to change the irradiation angle of the infrared LED 121. This is made to match the angle of view of the imaging camera 110 in real time. Furthermore, each of the imaging camera 110 and the infrared LED 121 was connected to the display unit 160 using a LAN cable, and the imaging camera 110 and the infrared LED 121 were connected to the hub board 150. (121) was connected, and the hub board 150 and the display unit 160 were connected with a LAN cable to construct a circuit with one LAN cable. The display unit 160 displays images or videos obtained from the imaging camera 110 and the thermal imaging camera 120. In one embodiment of the present invention, the hub board 150 is proposed to integrate different image data from the imaging camera 110 and the thermal imaging camera 120 into one IP address (IP-Address) and connect to transmit the data. Construct the circuit part. In this way, two images can be transmitted using only one cable, making it optimized for installation on ships where the wiring method is difficult and space is limited. This has the advantage of reducing installation costs by saving wiring time and man-hours.

The above detailed description should not be construed as restrictive in any respect and should be considered illustrative. The scope of the present invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the present invention are included in the scope of the present invention.

100: Long-distance imaging device, 101: Camera body, 110: Imaging camera, 120: Thermal imaging camera, 121: Infrared LED, 123: Center alignment unit, 125: Irradiation angle adjustment unit, 127: Control unit, 140: Interface board, 150 : hub board, 160: display unit,

Claims (5)

An imaging camera provided on one side of the camera body;
A thermal imaging camera provided on one side of the imaging camera and formed integrally with an infrared light-emitting diode (Infrared Light-Emitting Diode) that aligns the imaging camera and the center to emit light;
a center alignment unit that controls the center of the infrared LED to be aligned with the imaging camera;
An irradiation angle control unit that adjusts the irradiation angle of the infrared LED to be synchronized with the zoom magnification of the imaging camera so that the irradiation angle of the infrared LED matches the viewing angle of the imaging camera; and
It includes a control unit that controls the center alignment unit and the irradiation angle adjustment unit,
The infrared LED and thermal imaging camera have a single head structure with an integrated dual lens structure,
The imaging camera and the infrared LED are connected to an interface board so that the irradiation angle of the infrared LED changes in real time in response to changes in the viewing angle of the imaging camera,
The center alignment and irradiation angle adjustment are adjusted up, down, left, and right by a screw-type angle-adjustable bracket,
The control unit checks the zoom position of the imaging camera and controls the irradiation angle of the infrared LED to match the zoom position of the imaging camera,
A long-distance imaging device for ships, characterized in that a sudden start or stop of the irradiation angle control unit is prevented by applying a curve to the control unit. delete delete delete According to paragraph 1,
A long-distance imaging device for a ship, characterized in that the imaging camera and the thermal imaging camera are connected to a hub board, and the hub board is connected to the display unit with a LAN cable.