KR102380791B1 - Underwater cctv camera for having rgbw led - Google Patents

Abstract

A CCTV camera device according to the present invention includes a camera (100) and a management server (200). The camera (100) includes: a housing having a space portion; an imaging unit (110) installed inside the housing; a light source unit (120) installed on the front of the housing; and a circuit unit (140) controlling the amount of light of the light source unit. The light source unit (120) is made of a red LED, a green LED, a blue LED, and a white LED. The circuit unit (140) is configured to output different light quantity level values according to fish species to the red LED, the green LED, the blue LED, and the white LED.

Description

Underwater CCTV camera device with RGBW LED {UNDERWATER CCTV CAMERA FOR HAVING RGBW LED}

The present invention relates to a CCTV camera device for underwater use, and more particularly, to a CCTV camera device installed in water and having a light emission function so as to have the function of growing and fishing fish.

Studies on the physiology of fish by specific wavelengths of light are in progress. For example, squid has a habit of gathering in response to light. In addition, light having a specific wavelength may increase or stress fish growth.

Registered Patent Publication No. 10-1704579 discloses a fishing lamp device. The prior literature is equipped with a light emitting unit in a useful wavelength band for growth, and increases the amount of capture by the light emitted from the light emitting unit.

Fishing lamps installed on ships are installed on the water surface, so most of the light emitted from the fishing lamps is lost and only a part of the light is irradiated into the water.

Laid-open Patent Publication No. 10-2021-0149926, Fishing lamp device Laid-open Patent Publication No. 10-2015-0004250, Fish lamp Registered Patent Publication No. 10-1704579, underwater fishing lamp device Laid-open Patent Publication No. 10-2020-0070623, fish attraction system

An object of the present invention is to provide a CCTV camera device having an LED capable of irradiating light directly into the water.

Another object of the present invention is to provide a CCTV camera device having an LED capable of selectively emitting light wavelengths according to fish species.

Another object of the present invention is to provide a CCTV camera device having an LED capable of estimating the temperature of the water.

The problems to be solved by the present invention are not limited to the aforementioned problems. Other technical problems not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention pertains from the following description.

The CCTV camera device according to the present invention consists of a camera 100 and a management server 200,

The camera 100 includes a housing having a space, an imaging unit 110 installed inside the housing, a light source unit 120 installed on the front of the housing and comprising at least one LED module, and the amount of light from the light source unit includes a circuit unit 140 for controlling , Blue LED, CCTV camera device, characterized in that the output as White LED.

In addition, the management server 200 includes an image storage unit 210 for storing the captured video image, and a light quantity adjusting unit 220 for adjusting the light quantity of the light source unit for each fish type, and the light quantity adjusting unit 220 is a lookup. Including a table, wherein the lookup table stores individual LED light level values according to fish species.

In addition, an installation groove for the temperature sensor 130 is formed in the space of the housing, and the installation groove has a relatively thin thickness compared to other regions of the housing.

The wavelength of light can affect the growth depending on the fish species. According to the present invention, healthy growth of fish can be promoted by irradiating light having different wavelengths depending on the fish species.

In addition, a heat source exists inside the camera during operation. Such a heat source may interfere with measuring the water temperature value outside the camera. In the present invention, an accurate water temperature value can be estimated by calculating a correction value from the detected temperature value.

1 is a perspective view of a CCTV camera according to an embodiment of the present invention.
2 is a block diagram of a CCTV camera device according to an embodiment of the present invention.
3 is a cross-sectional view of a CCTV camera according to an embodiment of the present invention.
4 illustrates a light source unit according to an embodiment of the present invention.
5 is a view showing the light quantity control of the LED module.
FIG. 6 is an enlarged view of part AA of FIG. 3 .

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. For convenience of description, components shown in the drawings may be exaggerated, omitted, or schematically represented.

The CCTV camera device according to the present invention may be installed in a water tank or may be installed in a sea farm. It is also possible to install a camera device by putting it into the sea from a fishing boat.

1 is a perspective view of a CCTV camera according to an embodiment of the present invention, and FIG. 2 is a configuration diagram of a CCTV camera device according to an embodiment of the present invention.

The CCTV camera apparatus according to an embodiment of the present invention includes a CCTV camera 100 and a management server 200 . The CCTV camera may be connected to the management server using wireless or wired communication.

3 is a cross-sectional view of a CCTV camera according to an embodiment of the present invention.

The CCTV camera 100 includes a housing (HS), an imaging unit 110 installed inside the housing, a light source unit 120 installed on the front of the housing, and a temperature sensor 130 installed inside the housing. ) and a circuit unit 140 for controlling the amount of light from the light source unit.

The housing HS has a space therein. An imaging part, a light source part, and a circuit part are provided in the space part. Tempered glass (GLS) is installed on the front side of the housing, and the cable connector is installed on the rear side of the housing.

The imaging unit 110 is installed in the space of the housing. The imaging unit may include a lens 111 for condensing external light and an image sensor 112 for generating an image image.

The light source unit 120 is installed on the front side of the housing. The light source unit may be formed of LEDs emitting four different wavelengths.

4 illustrates a light source unit according to an embodiment of the present invention.

The light source unit according to the present invention may consist of a plurality of LED modules, and as shown in the enlarged portion in FIG. 4 , one LED module may be composed of a Red LED, a Green LED, a Blue LED, and a White LED. The Red LED may have a wavelength of 600 to 650 nm, the Green LED may have a wavelength of 500 to 550 nm, the Blue LED may have a wavelength of 400 to 450 nm, and the White LED may have a wavelength of 400 to 800 nm. According to the present invention, each LED has a light quantity control function.

The temperature sensor 130 detects the temperature in the water. According to the present invention, the temperature in the water is estimated by detecting the temperature of the inner surface of the camera housing. As an embodiment, the installation groove 130h may be formed inside the camera housing, and the temperature sensor may be installed in the formed installation groove. 6 is an enlarged view of a portion AA of FIG. 3 , and the housing region in which the installation groove is formed has a relatively thin thickness compared to other parts of the housing. Accordingly, the temperature can be measured more accurately.

As another embodiment, the temperature sensor may include a first temperature sensor and a second temperature sensor. A first temperature sensor is installed inside the camera housing, and a second temperature sensor is installed in an installation groove of the camera housing. The first temperature sensor detects the internal temperature of the camera housing, and the second temperature sensor detects the temperature of the installation groove. In the case of this embodiment, it is possible to more accurately estimate the water temperature value in the water by detecting the temperature inside the camera and the temperature of the installation groove at the same time.

The circuit unit 140 controls the amount of light from the light source unit. The circuit unit adjusts the amount of light of the LED constituting the LED module of the light source unit according to the light source control signal transmitted from the management server.

5 is a view showing the light quantity control of the LED module.

The red LED, the green LED, and the blue LED according to the present invention may have their light level values adjusted so that different amounts of light are emitted. Each of the light quantity level values may be adjusted from a low first step to a high Nth step. Red LED, Green LED, and Blue LED are individually selected with different light level values, and light is emitted with the selected light level value. In the present invention, it is an embodiment to control the amount of light of R, G, and B-LED, but it can be further configured to additionally control the amount of light of the White LED.

Referring back to FIG. 2 , the management server 200 includes an image storage unit 210 for storing the captured image image, a light quantity control unit 220 for adjusting the light quantity of the light source unit for each type of fish, and the detected temperature value. It may include a temperature estimation unit 230 for estimating the water temperature value. Additionally, the management server may be further installed with a monitor for monitoring the state of the underwater fish.

The image storage unit 210 stores the image image captured by the imaging module. The stored video image may be displayed from a monitor connected to the management server.

The light amount adjusting unit 220 may include a look-up table. In the lookup table, individual LED light quantity level values may be recorded according to fish species. As an embodiment, in the case of fish type A, the individual LED light level value may be set to Red LED level 3, Green LED level 5, Blue LED level 3, and White LED level 4, and in the case of fish type B, the individual LED light level value is Red LED level 2, Green LED level 5, Blue LED level 4, White LED level 5 can be set.

When the manager inputs a fish species to the server, the light intensity control unit reads the light intensity level value of the lookup table corresponding to the fish species, and transmits the light intensity level value of each LED stored in the lockup table to the circuit unit 140 of the CCTV camera. Here, the individual LEDs may be a Red LED, a Green LED, a Blue LED, and a White LED.

Additionally, a water temperature value for each fish type may be stored in the lock-up table. The water temperature value for each fish type may be configured to be output to the monitor of the management server together with the estimated water temperature value.

The temperature estimation unit 230 estimates a water temperature value from a temperature value detected by the temperature sensor. When the temperature sensor is installed in the camera housing, predetermined heat is generated according to the operation of components installed inside the camera housing, for example, an image sensor and a circuit unit. Due to such an internal heat source, it is difficult to estimate the water temperature value from the detected temperature value.

When one temperature sensor is installed in the installation groove of the housing, the water temperature value is estimated by subtracting the correction value according to the internal heat source from the temperature value detected by the temperature sensor. For example, the correction value may be set to 0.5 to 1.5° C. depending on the installation time, that is, the duration after the camera device is installed in water.

As another embodiment, when two temperature sensors, that is, temperature sensor 1 and temperature sensor 2 are installed, it is estimated based on the temperature value T1 detected from the temperature sensor 1 and the temperature value T2 detected from the temperature sensor 2 The obtained water temperature value (Tw(℃)) may be calculated according to the following <Equation 1>. The temperature sensor 1 represents a temperature sensor installed inside the camera housing, and the temperature sensor 2 represents a temperature sensor installed in the installation groove.

<Equation 1>

Tw = T1 - (T1-T2) / (St×Ut)

Here, St is the surface heat transfer resistance (m2·K/W), and Ut is the thermal transmittance (W/m2·K).

Fish can grow healthy in different temperature environments depending on the fish species. In the present invention, it is possible to increase or decrease the temperature of the water temperature according to the estimated water temperature value. In the case of a water tank, temperature control of the water temperature may be easy. On the other hand, if the installation site is in the sea, the species of fish that inhabit may be different depending on the water temperature.

The administrator can check the water temperature value displayed on the edge area of the monitor of the management server and adjust the temperature of the water tank.

As mentioned above, although the present invention has been described in detail through specific embodiments, the present invention is not limited to the above embodiments, and various modifications are possible by those of ordinary skill within the scope of the technical spirit of the present invention.

100 : CCTV Camera
110: imaging unit
111: lens
112: image sensor
120: light source unit
130: temperature sensor
130h : installation home
140: circuit part
200: management server
210: image storage unit
220: light quantity control unit
230: temperature estimation unit
HS : (camera) housing
GLS : Tempered Glass

Claims (3)

Consists of a CCTV camera 100 and a management server 200,
The CCTV camera 100 is,
A housing having a space, an imaging unit 110 installed inside the housing, a light source unit 120 installed on the front of the housing and comprising at least one LED module, and a circuit unit for controlling the amount of light of the light source unit ( 140),
An installation groove 130h in which the temperature sensor 130 is installed is formed inside the housing,
The LED module consists of a Red LED, a Green LED, a Blue LED, and a White LED,
The circuit unit 140 outputs different light quantity level values according to the fish species to Red LED, Green LED, Blue LED, White LED,
The management server 200 estimates the water temperature value from the image storage unit 210 for storing the captured image image, the light quantity control unit 220 for adjusting the light quantity of the light source unit for each type of fish, and the temperature value detected by the temperature sensor and a temperature estimation unit 230 to
The light quantity control unit 220 includes a lookup table, the lookup table stores the light quantity level values of Red LED, Green LED, Blue LED according to the fish species,
CCTV camera device, characterized in that the temperature estimation unit 230 is configured to estimate the water temperature value by subtracting the correction value according to the internal heat source from the temperature value detected by the temperature sensor 130 installed in the installation groove (130h) .
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