KR20100061890A - Camera place control unit with sensing the sound - Google Patents

Abstract

PURPOSE: A camera place control unit by sensing a sound is provided to improve speed of the tracing of a camera about a photographing target by automatically controlling the position of the camera with the sound sensing. CONSTITUTION: A plurality of microphones(M2,M3) generates an electric signal with the sensing of the sound. An amplifier amplifies a signal of the microphone. An MCU(Micro Controller Unit) is installed on a micro board(20). According to the signal of the converted signal analyzer [converting signal analyzer], MCU converts the direction of camera. A camera position controller(100) performs the zoom function or change of the direction of the big signal with the comparison of the sound of a plurality of microphones in most.

Description

Camera place control unit with sensing the sound}

The present invention relates to a camera position control apparatus through sound detection, and more particularly, to detect a sound in a building requiring security or crime prevention, and to control a camera through sound detection to control the camera's up, down, left and right directions. It relates to a position control device.

The present invention relates to a camera position control apparatus through sound detection, and more particularly, to detect a sound in a building or the like that requires security or crime prevention, the camera through sound detection to control the up, down, left, right direction of the camera. It relates to a position control device.

In general, cctv cameras are widely used in various fields as devices for transmitting images using cable television in a specific building or a specific facility.

 For example, users may install cctv cameras at production plants, financial institutions, train stations and subways, steel mill vessels and construction sites, distributors, leisure facilities, highways and city traffic networks, and then use a small number of them in their own central control room (or guard room). Personnel can monitor a large area at a glance.

 In addition, it can be used in various ways such as process supervision, receipt and exit, control, and home office automation.

And with the minimum number of personnel, the maximum surveillance effect can be achieved. When criminal activity is found, it can be immediately eliminated and patrols are not required in unnecessary areas.

The general configuration of such a cctv camera is such that the body of the camera is rotatably installed by the pan head, and the video signal output from the camera is input to the pan head controller of the control room, and this pan head controller controls the pan head. Connected.

However, in such a configuration, when an image signal photographed through the lens of the camera is input to the pan head controller, the user of the control room checks the image on the monitor. Therefore, the user manually adjusts the pan head in the control room through the shaft. The camera was moved up, down, left and right to track and shoot objects. However, in the case of such a case in the past, in a place where people pass frequently, there is a lot of holes in the user's monitor monitoring, the problem is that the square of the monitoring occurs.

The object of the present invention is to solve the above problems and to compare the level intensity of the sound coming into the five microphones, respectively, to find the corresponding azimuth angle of the highest level and to detect the sound driving the camera in the direction in which the voice signal is generated. This is to provide a camera position control device through.

Another object of the present invention is to provide a camera position control apparatus through a sound detection having a sound collector that can detect even a minute sound.

Camera position control device through the sound detection of the present invention to achieve the above object, the camera position control device for controlling the operation of the camera through sound recognition, the case is mounted on the wall or ceiling; A plurality of microphones installed in different directions in the case to detect sound and generate electric signals; An amplifier installed inside the case and amplifying a signal transmitted from the microphone, an A / D converter converting an analog signal transmitted from the amplifier into a digital signal, and a conversion analyzing the signal changed by the A / D converter Including a signal analyzer, a micro board equipped with a MCU for switching the direction of the camera spaced apart from the case, according to the signal of the conversion signal analyzer; including, but comparing the sounds recognized by the plurality of microphones to generate the largest signal It is characterized by switching the direction of the camera in the direction.

According to a preferred embodiment, the case, the body, a lower cover coupled to the lower portion of the body, a sound collector which is mounted on the upper surface of the body and collects sound, perpendicular to the upper surface of the body so that the sound collector can be mounted A plurality of support is installed, characterized in that consisting of an upper cover for covering the top of the collector.

According to a preferred embodiment, the sound collector is installed so that the plurality of square pyramid-shaped sound collector units are in contact with each other with respect to the center and directed in four directions, and a microphone is installed at the vertex of each sound collector unit.

According to a preferred embodiment, the upper cover is characterized in that the coupling is formed so that the case can be mounted on the wall or ceiling.

According to a preferred embodiment, the microboard is characterized in that the light s / w to control the flash of the camera according to the brightness of the closed space is mounted.

The present invention by the above-mentioned means for solving the problem by the user does not manually adjust the left and right and up and down directions of the camera, but automatically detects the sound and automatically controls the up, down, left and right positions of the camera,

It is possible to prevent unnecessary loss of human resources and to improve the speed of camera tracking and the ease of shooting.

In addition, the present invention is provided with a collector of a shape in which the inlet is wide but gradually narrowed,

Through the function of collecting the sound, it is possible to detect even a minute sound, and the azimuth angle can be accurately detected from the microphone that generates the largest signal among the sounds detected by the plurality of microphones.

In addition, the present invention is not a component that is integral with the camera, but is a separate product installed at a distance from the camera, so that the camera only needs to be replaced even when the camera is broken or damaged.

Hereinafter, with reference to the accompanying drawings, it will be described in more detail with respect to the camera position control device 100 through the sound detection of the present invention.

1 is a block diagram of a camera position control apparatus 100 through sound detection according to a preferred embodiment of the present invention.

Referring to FIG. 1, a camera position control apparatus 100 through sound detection includes a case, a microphone, an amplifier, an analog-to-digital (A / D) converter, a converted signal analyzer, a microcontrol unit (MCU), and a microboard 20. And the like.

First, a plurality of microphones are installed in different cases in different directions, and are unidirectional microphones that generate electric signals by detecting sound in one direction.

Preferably, M1 of the microphone is installed in the downward direction in the center of the lower cover 40 of the case, M2, M3, M4, M5 are located at a distance by dividing the outer peripheral surface of the case into four, respectively, can be installed to face horizontally have.

In general, a microphone (microphone) is also called a microphone (mike, mic), it is a device that converts sound into an electrical signal by transmitting audible sound to an electrical energy converter or sensor.

In other words, the microphone generates a balanced electrical signal by making a thin film. The omnidirectional microphone, in which the sensitivity of sound is the same in all directions, and the sensitivity of the sound transmitted to the front of the microphone is the most sensitive, and the sound of the back or side is It can be divided into single directional microphones that fall badly.

In the present invention, the microphone is unidirectional to sense sound in one direction, and a plurality of microphones are installed on the lower and outer circumferential surfaces of the case so that the signal of a high intensity is generated in which direction.

The signal entering the microphone is converted into a large output signal while maintaining the characteristics of the waveform of the input signal through the amplifier.

The analog signal is converted into a digital signal through an A / D converter, and then the converted signal is analyzed by a converted signal analyzer.

In other words, the converted signal analyzer is a device for comparing and analyzing signals transmitted from a plurality of microphones installed in different directions.

As a result, the converted signal analyzer transmits a command signal for changing the direction of the camera in the direction of generating the largest signal through the MCU to the pan / tilt system of the camera 200 to change the position of the camera 200.

The pan / tilt system is equipped with a CCTV camera 200 to widen the monitoring range by rotating up, down, left and right, and is utilized as a component of traffic control, major facilities, and crime prevention system devices.

In particular, the present invention detects the sound and rotates the camera up, down, left, and right as well as the zoom function according to the perspective of the sound.

Therefore, when the sound is detected from a distance, there is an advantage that can be observed in more detail by pulling the zoom of the camera.

On the other hand, such a cctv camera is a camera position control device through the detection of sound, but if necessary, the user can artificially operate the camera's up, down, left, right position and zoom function.

Therefore, in some cases, users often intentionally operate cctv cameras installed for security or crime prevention, peeping or stealing others' lives.

Thus, in order to prevent the abuse of cctv in this way, the present invention can be made so that the user can not operate the camera artificially and can only change the direction of the camera when it is detected only by sound.

Next, Figure 2 is an exploded perspective view of the camera position control device 100 through the sound recognition in accordance with a preferred embodiment of the present invention.

In FIG. 2, a case of the camera position control apparatus 100 through sound detection will be described.

Referring to Figure 2, the case is a body 30, the lower cover 40 is coupled to the lower portion of the body 30, the sound collector 60 is mounted on the upper surface of the body 30, the sound collector 60, Four supporters 32 are installed vertically on the upper surface of the body so that the sound collector 60 can be mounted, and an upper cover 50 covering the upper part of the sound collector 60.

Looking in more detail, between the body 30 and the lower cover 40, an amplifier, an A / D converter, a micro board 20 equipped with a microcontrol unit (MCU) is installed, and the coupling screw 42 By the body and the lower cover is coupled.

According to a preferred embodiment, it is possible to add a changeover switch to change the position of the camera by detecting only the sound of a person, rather than degrading the monitoring power by detecting all sounds rather than reducing the monitoring power.

And the upper surface of the body 30 is formed with four support 32 spaced apart in four directions, the support 32 is inserted into the collector 60.

The sound collector 60 is preferably, as shown, a plurality of square pyramid-shaped sound collector unit 62 abuts each other with respect to the center is installed in four directions, each of the sound collector unit 62 is a microphone Can be installed.

Therefore, the sound collector 60 can collect even a small sound by collecting a sound, and can accurately find a corresponding azimuth angle from a microphone that generates the largest signal among sounds detected by a plurality of microphones.

According to a preferred embodiment, the upper cover 50 is provided with a coupler 70 that allows the case to be mounted on a wall or a ceiling, so that it can be easily mounted in an indoor building or a parking lot. According to the light s / w to control the flash of the camera 200 is mounted, the user can easily use at night as well as day.

3 is a perspective view of a camera position control apparatus through sound recognition according to a preferred embodiment of the present invention.

Referring to Figure 3, you can see the state of the camera position control device through the sound detection is a finished product manufactured by combining the components shown in the exploded perspective view in FIG.

4 is a cross-sectional view of the camera position control device 100 through sound recognition according to an embodiment of the present invention.

Referring to FIG. 4, the microphone M1 positioned at the center of the lower cover 40 and the microphones M2, M3, M4, and M5 positioned at the apex of the sound collector unit facing each other with respect to the center and facing in four directions are provided. Is shown.

The microphone is m2 in the north direction, m5 in the east direction, m4 in the south direction, m3 in the west direction, m1 in the downward direction is installed to compare and analyze the signals coming into the five microphones in the conversion signal analyzer.

5 is a schematic diagram of a process of transmitting a signal to the camera 200 by the camera position control apparatus 100 through sound recognition according to an embodiment of the present invention.

Referring to FIG. 5, the camera position control apparatus 100 through sound is installed at a distance from the camera 200 to detect sound.

The microphone is unidirectional, and a plurality of microphones are respectively installed to detect sounds coming into m1, m2, m3, m4, and m5, and the amplifier converts the characteristic of the detected waveform into a large output signal.

The analog signal is converted into a digital signal through an A / D converter, and then the signal azimuth angles of the converted signal analyzer are compared to find a corresponding azimuth angle of the highest signal level.

The converted signal analyzer sends a command signal for changing the position of the camera to the corresponding azimuth angle of the highest signal level through the MCU to the pan / tilt system.

Therefore, the camera 200 may move up, down, left, and right or operate a zoom function by the pan / tilt system.

Next, when the user looks directly at the result of using the camera position control apparatus through the sound, the present invention detects the sound and automatically controls the position of the camera, preventing unnecessary loss of human resources, it was easy to shoot.

In addition, it is possible to detect the fine sound by the sound collector to collect the sound, it was possible to drive the camera at the release azimuth by accurately grasping in which direction the sound is detected.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and in the technical field to which the present invention pertains that substitutions, modifications, and conversions can be made without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

1 is a block diagram of a camera position control apparatus through sound recognition according to a preferred embodiment of the present invention

Figure 2 is an exploded perspective view of the camera position control device through the sound recognition according to an embodiment of the present invention.

3 is a perspective view of a camera position control apparatus through sound recognition according to a preferred embodiment of the present invention.

4 is a cross-sectional view of the camera position control apparatus through sound recognition according to a preferred embodiment of the present invention.

5 is a schematic diagram of a process of transmitting a signal to a camera by the camera position control apparatus through sound recognition according to an embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

M1 ~ M5: Microphone

20: microboard

30: body

32: support

40: lower cover

42: coupling screw

50: top cover

60: sound collector

62: sound collector unit

70: coupler

100: camera position control device

200: camera

Claims (5)

In the camera position control device for controlling the operation of the camera through sound recognition, A case mounted on the wall or ceiling; A plurality of microphones installed in different directions in the case to detect sound and generate electric signals; An amplifier installed inside the case and amplifying a signal transmitted from the microphone, an A / D converter converting an analog signal transmitted from the amplifier into a digital signal, and a conversion analyzing the signal changed by the A / D converter Including a signal analyzer, a micro board mounted with a MCU for switching the direction of the camera spaced apart from the case according to the signal of the conversion signal analyzer; And comparing the sounds recognized by the plurality of microphones to change the direction of the camera in the direction in which the largest signal is generated or to operate the zoom function. The method of claim 1, The case, Body, a lower cover coupled to the lower portion of the body, a sound collector which is mounted on the upper surface of the body and collects sound, a plurality of supports vertically installed on the upper surface of the body so that the sound collector can be mounted, the top of the sound collector Camera position control device through the sound detection, characterized in that made of an upper cover covering. The method of claim 2, The sound collector is installed so that the plurality of square pyramid-shaped sound collector units are in contact with each other with respect to the center and directed in four directions. Camera position control device through the sound recognition, characterized in that the microphone is installed at the apex of each collector unit. The method of claim 2, The upper cover is a camera position control device through the sound detection, characterized in that the coupling is formed so that the case can be mounted on the wall or ceiling. The method of claim 1, The microboard is a camera position control device through the sound detection, characterized in that the light s / w is mounted to control the flash of the camera according to the brightness of the sealed space.

Images