KR20190016321A - Lighting system using heat image camera - Google Patents

Abstract

Disclosed are a lighting system using a heat image camera and a method thereof. According to an embodiment of the present invention, a lighting system using a heat image camera and a method thereof are capable of improving a power saving function of a lighting device by controlling and differentiating a lighting brightness in three steps in accordance with an object movement inside a warehouse received from the heat image camera and reducing costs for installation and management of the lighting device by performing a dimming control of the lighting device through a tracking for the image having a surface temperature distribution, which is greater than or equal to a fiducial temperature, among heat images received from the heat image camera with a low resolution.

Description

TECHNICAL FIELD [0001] The present invention relates to a lighting system using a thermal image sensing camera,

The present invention relates to a lighting system and method using thermal imaging, and more particularly, to a lighting system and method using thermal imaging, in which dimming and power saving Technology.

In general, street lamps, parks, and harbors are installed in roads, parks, harbors, etc. in order to secure safety at night, vehicles, ships, or people's walking. Security, etc., for security of buildings and facilities It is mainly installed around buildings or at major facilities. They are installed on a pillar, a pole, a fence, a wall of a building, etc., and operate the main switch at a predetermined time to turn on / off the various lights.

In addition, the lighting lamps installed in the office of the building are operated by a worker to turn on and off various lighting lamps by operating the main switch.

Such a conventional building, collective illumination, or the like, may be configured such that the installed power switch is turned on / off manually by the user depending on the time required for lighting, remote control is performed by radio, An on / off control device is installed so that the controller is simply turned on at night and turned off during the daytime.

However, in recent years, lighting devices including dimming and power saving devices have been developed in terms of energy saving.

The illumination device including the dimming and power saving device has a configuration for controlling the brightness of the illumination in the warehouse depending on the presence or absence of the human body detected by using the infrared sensor module, but the power saving efficiency is lowered.

In addition, in the case of an illumination device for controlling illumination brightness according to the position and operation of a human body sensed using an infrared array sensor, it is inevitable to mount a high-resolution infrared array sensor for precise control, and thus a considerable installation cost is required.

Accordingly, the applicant of the present invention proposes a method of performing a dimming and power saving function of a lighting system of a warehouse using a low resolution thermal image sensing camera.

Therefore, according to the present invention, since the brightness of the illumination of the warehouse is differentiated and controlled based on the existence of the image having the surface temperature distribution of the reference temperature or higher and the retention time of the existing image among the thermal images obtained from the thermal image sensing camera, And an object thereof is to provide an illumination system and a method using a thermal image sensing camera capable of performing a thermal imaging operation.

In addition, the present invention can save energy according to illumination of a warehouse, protect the privacy of a face using a low-pixel thermal imaging camera, and provide a camera or an illuminance sensor using a visible light camera or a conventional solid- Another object of the present invention is to provide a lighting system and a method using a thermal image sensing camera which can improve the precision dimming and the power saving function by using the thermal image sensing camera.

The objects of the present invention are not limited to the above-mentioned objects, and other objects and advantages of the present invention which are not mentioned can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. It will also be readily apparent that the objects and advantages of the invention may be realized and attained by means of the instrumentalities and combinations particularly pointed out in the appended claims.

According to an aspect of the present invention, there is provided a thermal image sensing camera, which is installed at a predetermined position of a warehouse and outputs heat generated from a moving object as a surface temperature distribution. Extracting an image having a surface temperature distribution of a predetermined reference temperature or more from among the thermal images collected from the thermal image sensing camera, extracting a corresponding one of a plurality of predetermined pieces of motion information based on the presence or absence of the extracted image, And an illuminating device for generating dimming control information corresponding to the generated motion information and dimming the brightness of the light.

Preferably,

A thermal image receiving unit for receiving a surface temperature distribution of a thermal image generated from a moving object installed at a predetermined position in the warehouse; A preprocessing unit for extracting an image having a surface temperature distribution higher than a predetermined reference temperature among the surface temperature distributions of the thermal images of the thermal image receiving unit; A motion determining unit for generating corresponding motion information, which is one of a plurality of predetermined motion information, according to whether the extracted image exists or not, and whether the motion of the extracted image is varied; A dimming setting unit for setting illumination brightness corresponding to the corresponding motion information; And an illumination unit for outputting a predetermined reference voltage corresponding to the set illumination brightness.

Preferably, the motion-

The motion information may be generated to generate motion presence information when an image having a surface temperature distribution equal to or higher than the judgment reference temperature exists and the existing image changes during a predetermined holding time.

Preferably, the motion determiner

And generating the motion information as the motion stop information when the image having the surface temperature distribution equal to or higher than the determination reference temperature exists and the existing image is fixed for a predetermined holding time.

Preferably, the motion determiner

And to generate the corresponding motion information as motionless information if an image having a surface temperature distribution equal to or higher than the determination reference temperature does not exist.

Preferably, the dimming setting unit comprises:

Motion stop information, and motionless information, respectively, based on the motion information, the movement stop information, and the motion absence information.

According to another embodiment of the present invention, there is provided a method of controlling a lighting using a thermal image sensing camera using the above system, comprising the steps of: (a) receiving a surface temperature distribution of a thermal image provided from a thermal image sensing camera; (b) extracting an image having a surface temperature distribution higher than a predetermined reference temperature among the received thermal image surface temperature distributions; (c) generating one of the plurality of pieces of motion information based on the presence or absence of the extracted image and the retention time of the extracted image; And (d) controlling the dimming to a preset illumination brightness according to the generated corresponding motion information.

According to the illumination system using the thermal image sensing camera according to the present invention having the above-described structure, the presence of the image having the surface temperature distribution of the reference temperature or higher and the existence The brightness of the warehouse is differentiated and controlled based on the time, so that the dimming function and the power saving function can be performed.

In addition, according to the present invention, it is possible to save energy according to illumination of a warehouse, protect the privacy of a face using a low-pixel thermal imaging camera, and use a visible light camera or a complementary metal-oxide semiconductor A camera, an illuminance sensor, or the like.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate preferred embodiments of the invention and, together with the description of the invention given below, serve to further understand the technical idea of the invention. And should not be construed as limiting.
1 is a configuration diagram of an illumination system using a thermal image sensing camera according to an embodiment of the present invention.
2 is a view illustrating a detailed configuration of a lighting apparatus of an illumination system using a thermal image sensing camera according to an embodiment of the present invention.
Figs. 3 and 4 are simplified diagrams for explaining the operation of the illumination device according to the embodiment of the present invention. Fig.
5 is a configuration diagram of an illumination system using a thermal image sensing camera according to another embodiment of the present invention.
6 is a flowchart illustrating an operation of a lighting system using a thermal image sensing camera according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the exemplary embodiments of the present invention, descriptions of techniques which are well known in the art and are not directly related to the present invention will be omitted. This is to omit the unnecessary description so as to convey the key of the present invention more clearly without fading.

1 is a configuration diagram of an illumination system 100 having a thermal image sensing camera according to an embodiment of the present invention. FIG. 2 is a detailed view of the illumination device of the illumination control system using the thermal image sensing camera shown in FIG. FIGS. 3 and 4 are conceptual diagrams for explaining the operation of the illumination system using the thermal image sensing camera shown in FIG. 1. FIG.

1, the lighting control system 100 includes a thermal image sensing camera 110 provided at a predetermined position of a warehouse to sense heat generated from a moving object and output a thermal image in the form of a surface temperature distribution, A thermal image sensing camera (110) comprising: a thermal image sensing camera (110) that senses an image having a surface temperature distribution at a predetermined reference temperature or higher in a thermal image collected from the thermal image sensing camera And a lighting device 120 for controlling dimming to correspond to the generated corresponding motion information with the set illumination brightness.

Here, the thermal image sensing camera 110 is an apparatus for displaying infrared rays generated from moving objects in the warehouse in the form of surface temperature distribution of objects. Considering that the ceiling height of the warehouse and the warehouse is usually 8-10 m, the lighting apparatus which controls the dimming of the illumination by adopting the existing high-resolution infrared camera has considerable installation cost and management cost. For example, warehouse logistics warehouse of L requires about 2,000 camera modules and lighting modules when one building is two or three stories.

Accordingly, the illumination apparatus according to the embodiment of the present invention is provided to perform a dimming control function of the lighting apparatus using a low-pixel-level thermal image sensing camera of 80X80, and the thermal image sensing camera 110 is capable of detecting a sensing distance And has a camera horizontal angle of view of 45 degrees.

The thermal image sensing camera 110 senses infrared rays generated from a moving object and outputs a thermal image in the form of a surface temperature distribution. If a person skilled in the art is familiar with the embodiments of the present invention I can understand.

The thermal image of the surface temperature distribution obtained by the thermal image sensing camera 110 is transmitted to the illumination device 120 via a wire or is connected to the thermal image sensing camera 110 through a communication network, (120).

On the other hand, the illumination device 120 extracts an image having a surface temperature distribution equal to or higher than a predetermined reference temperature (preferably set to 30 deg. C) for the thermal image of the received surface temperature distribution, Motion stop information, and motionless information for an object existing in the warehouse based on whether or not the image is fluctuated during the holding time, derives corresponding motion information including one of motion presence information, motion stop information, and no motion information, Controls brightness (dimming). The lighting device 120 may include a thermal image receiving unit 121, a preprocessing unit 123, a motion determining unit 125, a dimming setting unit 127, and an illuminating unit 129.

That is, the thermal image receiving unit 121 senses the surface temperature distribution generated from the moving object measured by the thermal image sensing camera 110, and transmits the detected surface temperature distribution to the preprocessing unit 123.

As shown in FIG. 3, the preprocessing unit 123 derives an image having a surface temperature distribution equal to or higher than a predetermined reference temperature (preferably set at 30 DEG C) for the thermal image of the received surface temperature distribution, To the motion determining unit 125, and the motion determining unit 125 determines one of the plurality of pieces of motion information for the object from the derived image. Here, the plurality of pieces of motion information include motion presence, motion stop, and no motion, and the corresponding motion information is one of motion presence, motion stop, and no motion determined from the extracted image.

The motion determining unit 125 determines whether or not there is motion of the object based on the holding time of the thermal image having the surface temperature distribution of the received judgment reference temperature or more and the thermal image having the surface temperature distribution of the received judgment reference temperature or more. Here, the judgment reference temperature is set to a minimum temperature obtainable from the human body in the object, and the holding time is set to a maximum time in which movement of objects in the warehouse is possible, and is preferably set to 5 seconds. The holding time is expressed as a maximum time for performing an operation of moving an object from one end (A position) to another end (B position) in the warehouse.

For example, when the image having the surface temperature distribution higher than the determination reference temperature received from the thermal image provided from the preprocessing unit 123 exists and the image changes during a predetermined maintenance time or longer, Motion information indicating that the object is still moving.

If there is no change in the thermal image during the holding time in which the image having the surface temperature distribution higher than the determination reference temperature is received from the thermal image provided from the preprocessing unit 123, Motion stop information indicating that the motion of the object is stopped.

On the other hand, when no image having a surface temperature distribution equal to or higher than the judgment reference temperature received from the thermal image provided from the preprocessing unit 123 exists, the motion determining unit 125 determines that no moving object exists in the warehouse .

One of motion presence information, motion stop information, and no motion information of the motion determination section 125 is transmitted to the dimming setting section 127. [

As shown in FIG. 4, the dimming setting unit 127 performs a function of adjusting the brightness of illumination corresponding to one of the received motion presence information, motion stop information, and motion information, and for example, The dimming setting unit 127 sets the illumination brightness to 90% or more and provides the reference voltage V1 corresponding to the set illumination brightness to the illumination unit 129. [

When the motion stop information is received, the dimming setting unit 127 sets the illumination brightness to 40% to 60%, and then transmits the reference voltage V2 corresponding to the set illumination brightness to the illumination unit 129, (V2) is smaller than the reference voltage (V1).

Further, the dimming setting unit 127 sets the brightness of the illumination to 10% to 15% when no motion information is received, and transmits the reference voltage V3 corresponding to the set brightness of illumination to the illumination unit 129. [ Here, the reference voltage V3 has a value smaller than the reference voltage V2.

The illumination unit 129 receiving the reference voltage adjusts the brightness of the illumination according to the reference voltage.

Accordingly, it is possible to enhance the power saving function of the illumination device by differentiating and controlling the brightness of the illumination depending on whether or not the warehouse is received from the thermal image sensing camera 110.

Since the dimming control of the lighting apparatus is performed by tracking the image having the surface temperature distribution of the reference temperature or higher among the thermal images received from the thermal image sensing camera 110 having the low resolution of 80X80, The cost can be reduced.

5, the illumination system includes a warehouse object image provided from an image acquisition module using visible light, and a material motion image using a thermal image sensing camera. In addition, FIG. 5 illustrates another embodiment of the present invention. So that the movement of objects in a clearer warehouse can be derived, and precise dimming control can be performed in accordance with the object motion derived therefrom.

A series of processes in which the dimming control of the illuminating device is performed by tracking the movement of an image having a surface temperature distribution higher than a judgment reference temperature among the thermal images received from the thermal image detecting camera will be described with reference to FIG.

FIG. 6 is a flowchart illustrating an operation process of the illumination control system using the thermal image sensing camera shown in FIG. 2. Referring to FIGS. 2 to 6, the illumination control process using the thermal image sensing camera according to another embodiment of the present invention .

First, the thermal data receiving unit 121 receives a thermal image from a thermal image sensing camera provided at the ceiling or spatial distance of the warehouse. When the pre-processing unit 123 receives the thermal image at a predetermined reference temperature or higher (S1, S2).

Then, the motion determining unit 125 determines the corresponding motion information based on the predetermined holding time (5 seconds) for the extracted image of the reference temperature or higher. For example, motion presence information is generated when the image of the reference temperature or more is moved during the maintenance time, motion stop information is generated when the image of the reference temperature or more is fixed during the maintenance time, No motion information is generated.

That is, when the motion determining unit 125 generates motion presence information when an image of a reference temperature or higher has changed during the holding time, the dimming setting unit 127 sets a brightness of 90% or more according to the generated motion presence information, The reference voltage V1 for the set illumination brightness is output from the illumination unit 129 (S3 to S6).

The motion determining unit 125 generates motion stop information when an image equal to or higher than the reference temperature is fixed during the holding time, and controls the dimming setting unit 127 to adjust the illumination brightness of 40% to 60% And the reference voltage V2 for the set illumination brightness is output from the illumination unit 129 (S7 to S10).

In addition, when the motion determining unit 125 does not have a video image at the reference temperature or higher, motionless information is generated and the dimming setting unit 127 sets the illumination brightness of 10% to 15% according to the generated no motion information, The reference voltage V3 for the set illumination brightness is output from the illumination unit 129 (S11 to S14).

The above-described series of processes is repeatedly performed until the lighting unit 129 is powered off (S15).

Accordingly, it is possible to enhance the power saving function of the lighting apparatus by differentiating and controlling the brightness of the illumination in three levels according to whether or not the object in the warehouse is received from the thermal image sensing camera.

In addition, since the dimming control of the illumination device is performed by tracking the image having the surface temperature distribution higher than the judgment reference temperature among the thermal images received from the thermal image sensing camera of the low resolution of 80X80, the installation cost and the management cost of the lighting device are reduced can do.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. It can be understood that it is possible.

Thermal image sensing It is possible to enhance the power saving function of the lighting device by differentiating and controlling the brightness of illumination according to whether the object moves in the warehouse received from the camera in three levels, The dimming control of the lighting apparatus is performed by tracking the image having the surface temperature distribution equal to or higher than the reference judgment temperature, so that the installation and management cost of the lighting apparatus can be reduced, and operation of the lighting apparatus and method using the thermal image sensing camera The present invention can be applied to industrial applications because it is possible to make a great progress in terms of accuracy and reliability of the illumination system, .

100: Lighting system
110: Thermal image sensing camera
120: Lighting device
121: Temperature data receiver
123:
125: Motion determination section
127: Dimming setting unit
129:

Claims (7)

A thermal image sensing camera installed at a predetermined position of the warehouse and outputting heat generated from a moving object as a surface temperature distribution; And
Extracting an image having a surface temperature distribution at a predetermined reference temperature or higher among the thermal images collected from the thermal image sensing camera, and selecting one of a plurality of predetermined motion information among the predetermined plurality of motion information based on the extracted image presence / And an illumination device for generating dimming control information corresponding to the generated motion information and dimming the dimming control light according to a set illumination brightness.
The lighting apparatus according to claim 1,
A thermal image receiving unit for receiving a surface temperature distribution of a thermal image generated from a moving object installed at a predetermined position in the warehouse;
A preprocessing unit for extracting an image having a surface temperature distribution higher than a predetermined reference temperature among the surface temperature distributions of the thermal images of the thermal image receiving unit;
A motion determining unit for generating corresponding motion information, which is one of a plurality of predetermined motion information, according to whether the extracted image exists or not, and whether the motion of the extracted image is varied;
A dimming setting unit for setting illumination brightness corresponding to the corresponding motion information; And
And a lighting unit for outputting a predetermined reference voltage corresponding to the set illumination brightness.
3. The apparatus according to claim 2,
Wherein the motion information generating unit generates motion information when the image having the surface temperature distribution equal to or higher than the determination reference temperature exists and the existing image changes during a predetermined holding time, .
3. The apparatus of claim 2, wherein the motion determiner
And generating the motion information as motion stop information when an image having a surface temperature distribution equal to or higher than the determination reference temperature exists and the existing image is fixed for a predetermined holding time. system.
3. The apparatus of claim 2, wherein the motion determiner
Wherein the controller is configured to generate the motion information as motionless information when the image having the surface temperature distribution equal to or higher than the determination reference temperature does not exist.
The apparatus as claimed in one of claims 3 to 5,
Wherein the controller is configured to set the predetermined brightness of the motion information, the motion stop information, and the no motion information, respectively.
(a) receiving a surface temperature distribution of a thermal image provided from a thermal image sensing camera;
(b) extracting an image having a surface temperature distribution higher than a predetermined reference temperature among the received thermal image surface temperature distributions;
(c) generating one of the plurality of pieces of motion information based on the presence or absence of the extracted image and the retention time of the extracted image; And
(d) controlling the dimming to a preset illumination brightness according to the generated corresponding motion information.

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