KR20100008825A - Wiper apparatus of closed circuit television camera system - Google Patents

Abstract

PURPOSE: A wiper apparatus fro a CCTV camera system is provided to facilitate maintenance by wiping the lens of the camera while rotating along with the rotating camera. CONSTITUTION: A controller controls the operation of a camera system while rotating along with a camera(110). A wiper unit(200) comprises a solenoid(210) which pulls out an actuating rod when a wiper signal is applied from the controller, and a wiper(220) which presses against the circumference of a lens from the dome top. When the actuating rod is pulled out, the wiper wipes the surface of the lens while rotating in the same direction as the camera rotates.

Description

 WIPER APPARATUS OF CLOSED CIRCUIT TELEVISION CAMERA SYSTEM}

The present invention relates to a wiper device of a closed circuit television camera system.

In general, a closed-circuit television camera system, abbreviated as CCTV-SYSTEM, corresponds to a device capable of viewing image information transmitted from a transmitting side, such as a conventional home TV, through a TV receiver.

However, unlike general home TV broadcasts through the air, in CCTV, transmitter and receiver are connected by coaxial cable, and image information is transmitted through these wires.

Therefore, CCTV is generally installed and used for surveillance purposes in banks, underground parking lots, entrances and the like.

Such conventional CCTV-SYSTEM is typically a camera for taking an image; A controller for remotely controlling the up, down, left, and right angles of the camera; It includes a monitor for outputting the image taken by the camera, it is casing by the case body and the shooting window is protected and installed in a specific location of the surveillance area.

However, such a conventional CCTV-SYSTEM has a problem of covering the field of view of the camera by adhering the surrounding contaminants to the shooting window for protecting the camera.

Since the contamination of the photographing window needs to be periodically wiped by the administrator, maintenance is very cumbersome and difficult (as it is generally installed in a high place for securing a view), and there is a problem that the time and economic burden are increased.

The present invention provides a rotating closed circuit television camera system having a dome-shaped photographing window that accommodates a camera rotating by the driving force of the motor 1 provided inside the case body and is fixed to one end of the case body so as to protect the camera. A solenoid which draws out an operation time when a wiper control signal of a controller for controlling an operation of a camera system while rotating along the camera is applied; The wiper is in close contact with one side along the circumference from the top of the dome of the photographing window, and wiping the surface of the photographing window while rotating in the same rotational direction as the camera while being pushed out when the operation period of the solenoid is pulled out. .

The present invention can provide a clear field of view to the camera at all times while maintaining easy maintenance, by wiping the recording window while rotating along the rotating camera of the closed circuit television camera system, without the need for separate clean maintenance. Make sure

BRIEF DESCRIPTION OF THE DRAWINGS Prior to describing the present invention, the accompanying drawings, which are presented to help understand the technology, FIG. 1 is a block diagram schematically showing the overall configuration of a system according to an embodiment of the present invention, and FIG. 3 is a block diagram showing the configuration in more detail, Figure 3 is a perspective view showing a mechanical configuration according to an embodiment of the present invention, Figures 4 and 5 are more specifically the mechanical configuration according to an embodiment of the present invention 6 and 7 are cross-sectional views illustrating a mechanical configuration according to an embodiment of the present invention, and FIGS. 8 to 10 are cross-sectional views showing an operating state of the wiper part of the present invention, and FIG. 11A), b) is a plan view showing a panning operation state of the present invention, Figure 12a), b) is a side view showing a tilting operation state of the present invention, double reference numeral 100 represents a CCTV camera system to which the present invention is applied Fig. 200 shows the wiper portion, which is a main part of the present invention.

The present invention will be described below with reference to the accompanying drawings presented as above.

First, the present invention accommodates the camera 110 to rotate with the driving force of the motor 1 (M1) provided inside the case body 101, as shown in Figure 1 and 2 of the accompanying drawings, and protects the camera 110 In the rotatable CCTV camera system 100 provided with a dome-shaped shooting window 103 that is fitted to one end of the case body 101 so as to be fixed, it controls the operation of the camera system while rotating along the camera 110 A solenoid 210 which draws out the operation when the wiper control signal of the controller 140 is applied; The wiper 220 is in close contact with one side along the circumference from the top of the dome of the photographing window 103, and when the operation period of the solenoid 210 is pulled out, the wiper 220 wipes the surface of the photographing window while rotating in the same rotational direction as the camera. It may be configured to include a wiper 200.

Here, the CCTV camera system 100 includes a camera 110 for taking images at positions of various preset angles while continuously rotating, as shown in FIGS. 1 and 7; A driving unit 120 for adjusting the rotation and vertical angle of the camera 110; Sensor unit 130 for recognizing the rotation and vertical angle of the camera 110; The driving unit 120 is controlled to operate the camera at a preset rotation speed and angle, and data related to camera driving provided by the driving unit 120 to the image signal of the camera 110 and the sensor unit 130 are controlled. A controller 140 for combining the angle data and the audio signal of the provided camera and storing the same in a memory and outputting the same to a monitor; A memory unit 150 for storing images of respective positions photographed by the camera 110; And a monitor unit 160 which outputs an image of each position photographed by the camera 110 in real time.

The camera 110 may be a still image or a camera for capturing a still image and a moving image. The camera 110 may be installed on both ends of the “B” shaped camera bracket 111 so as to be rotatable vertically.

On the other hand, the driving unit 120 is installed in the center of the base plate 102, which is provided inside the case body 101, the rotating plate 1 (rotated by a motor M1 fixed to the base plate 102) 121a), the motor 1 (M1) is operated by a support plate 121b fixed to the center of one side of the rotating plate 1 (121a) to support the camera bracket 111 and a control signal input from the controller 140. Panning driving means (121) comprising a motor driver (121c) to make; Is fixed to one end of the shaft for fixing the camera 110 to the camera bracket 111, in the rotating plate 2 (122a) and the control unit 140 is rotated by the motor 2 (M2) fixed to the support plate 121b And a tilting driving means 122 including a motor driver 2 122c for operating the motor 2 M2 by an input control signal.

In this case, the case body 101 may be a dome-shaped case in which one end is blocked by the base and the other end is blocked by the photographing window 103.

The peripheral part of the case body 101 and the peripheral part of the photographing window 103 may be fixed to each other by screwing.

A shaft 102a penetrating through the rotating plate 1 121a and the support plate 121b is fixed to the center of the base plate 102, and an intermediate portion of the shaft 102a conducts power or an electrical signal in a surface contact manner. An electrical signal coupler 102b may be provided.

In addition, the rotating plate 1 (121a) may be connected to the pulley and the rotating belt (including a timing belt, chain) is fixed to the shaft of the motor 1 (M1) is formed in the peripheral portion.

The rotating plate 1 (121a) as shown is connected to the pulley of the motor 1 (M1) to act as a reducer, but may also be a constant speed or acceleration function according to its diameter.

In addition, the rotating plate 2 (122a) is a groove formed in the peripheral portion may be connected to the pulley and the rotating belt (including a timing belt, chain) fixed to the shaft of the motor 2 (M2).

The rotating plate 2 (122a) is shown as being connected to the pulley of the motor 1 (M1) as a reducer, but may also be a constant speed or acceleration function depending on the diameter.

On the other hand, the sensor unit 130 and the counter hole 1 (131a) formed at equal intervals along the outer surface of the support plate 121b for panning while supporting the camera 110, and the counter hole 1 (131a) A panning sensor 131 including a sensor 1 (131b) for sensing (); Is provided at equal intervals along the outer surface of the rotating plate 2 (122a) for tilting the camera 110 is provided on one side of the shaft penetrating both ends of the camera bracket 111 for fixing the camera 110 to the support plate (121b) And a tilting sensor 132 including a counterhole 2 132a and a sensor 2 132b for detecting the counterhole 2 132a.

On the other hand, the control unit 140, the operation means for setting the photographing angle, the rotational speed, the rotational angle and the operating time of the wiper 200, the camera 110; The control unit 130 outputs a control signal of the driving unit 120 by the manipulation unit 141, and the sensor unit 130 detects a panning / tilting state of the camera 110 driven by the driving unit 120. When the signal is transmitted, the control signal is output by comparing with the set value, the image signal captured by the camera 110 is converted into a digital signal, and between the converted digital image signals, the driving unit 120 provides the The rotation speed data and the angle data of the camera provided from the sensor unit 130 and the sound signal input from the outside is converted into a digital signal to combine the recording position signal of the camera 110, the memory corresponding to the specified angle or the entire memory and It may be configured to include; and transfer to the monitor, the processing means 142 for driving the wiper 200.

In this case, the controller 140 may periodically operate the solenoid 210, but may be manually controlled by the monitor or the monitoring center (when small yellow dust or rain).

In addition, the control unit 140 may be mounted in the case body 101, may be installed in a remote monitoring center, and when installed at a remote location, the camera 110 through a high-frequency transmission or reception (LAN) The communication unit 120 may communicate with the driver 120 and the sensor unit 130.

On the other hand, the memory unit 150 includes a total memory 151 for storing the entire digital image signal photographed by the camera 110 transmitted from the control unit 140; And a designated angle memory 152 to 159 for storing only a digital image signal having a designated angle.

On the other hand, the monitor unit 16 includes a total monitor 161 for outputting the entire digital image signal photographed by the camera 110 transmitted from the control unit 140; And a designated angle monitor 162 to 169 that output only a digital image signal having a specified angle.

Here, in the present invention, the solenoid 210 of the wiper 200 may be a pushing means for rotating the wiper 220 by periodically drawing out the operation period according to a preset operating time of the control unit 140. .

The solenoid 210 may be fixed to the support plate 121b for supporting the rotation of the camera 110 by the solenoid bracket 211.

At this time, the support plate 121b has a groove formed in the periphery thereof, the center of which is fixed to the rotating plate 1 (121a) connected to the pulley and the rotating belt (including the timing belt and the chain) fixed to the shaft of the motor 1 (M1) to rotate. Can be.

On the other hand, the wiper 220 of the present invention is a rotating shaft 221 is fixed to the central portion of the outer peripheral of the dome window 103; One end is fitted to the rotation shaft 221 and the other end is a wiper frame 222 extending in the direction of the case body 101 along the outer circumferential surface of the photographing window 103; A cleaner 223 fixed to an inner surface of the wiper frame 222 to be in close contact with the photographing window 103; A magnet 1 224 fixed to the other end of the wiper frame 222; A guide rail 1 (225) fixed to an outer circumferential portion of the photographing window 103 to provide a rotation path of the magnet 1 224; A magnet 2 226 that is pushed and rotated by the pulled-out operation of the solenoid 210; And a guide rail 2 227 fixed to an inner circumferential portion of the photographing window 103 to provide a rotation path of the magnet 2 226.

In this case, the cleaner 223 may be a sponge, a rubber material, or silicon, and the shape of the cleaner 223 may be a block type or a squeegee type.

In addition, the magnet 1 224 and the magnet 2 226 may face each other with the photographing window 103 interposed therebetween.

In addition, the guide rails 1, 2 (225, 227) may be made of a non-metallic material such as synthetic resin in consideration of the magnetic force of the magnets 1, 2 (224, 226), or may be made of a non-ferrous metal.

Referring to the operation of the present invention configured as described above are as follows.

First, as shown in FIG. 8, the wiper part 200 of the present invention does not normally push the magnet 2 226 between the operation plates because the solenoid 210 is not in an operating state, and thus, the support plate 121b. The surveillance region is captured by the camera 110 while being rotated by the motor 1 M1 and the rotating plate 1 121a.

Meanwhile, as shown in FIG. 9, when an operation signal is applied from the controller 140 periodically or as needed, the solenoid 210 operates to draw out the operation.

Then, as shown in FIG. 10, the drawn operation pushes the magnet 2 226, and the magnet 2 226 rotates along the inner diameter of the guide rail 2 227.

In this case, the magnet 1 224 facing the magnet 2 226 is attracted to the magnet 2 226 by magnetic force to rotate along the guide rail 1 225, whereby the wiper frame 222 rotates. Since the rotating around the outer peripheral surface of the photographing window 103 around 221, the cleaner 223 fixed to the inner diameter of the wiper frame 222 wipes the photographing window 103.

Here, the wiper 220 of the wiper part 200 of the present invention is programmed in advance in the control unit 140 to stop at a position outside the designated photographing angle of the camera 110.

In the present invention as described above, the wiper part 200 is rotated along the rotating camera of the closed circuit television camera system 100 without the need for maintenance of the clean, by wiping the shooting window 103, the maintenance is easy While providing a clear view to the camera at all times.

Next, the overall operation of the present invention will be described.

First, the present invention, as shown in Figure 11a) of the accompanying drawings, the control unit 140 by dividing 360 degrees into eight equal 0/360 degrees, 45 degrees, 90 degrees, 135 degrees, 180 degrees, 225 degrees, 270 Also, the camera is configured to capture an image at a portion corresponding to 315 degrees.

At this time, when the control unit 140 transmits a control signal to the panning driving unit 121, motor 1 (M1) of the panning driving unit 121 is operated to rotate the rotating plate 1 (121a), to the rotating plate 1 (121a) The fixed support plate 121b is rotated.

Then, as shown in (b) of FIG. 11, the sensor 1 131b counts the counterhole 1 131a formed in the support plate 121b to transmit the position angle signal to the controller 140 at a predetermined angle. In addition, the controller 140 operates the camera 110 to take images of the designated spots, respectively.

At this time, the photographing may be performed even in a stopped state or may be executed even in a rotating state. Of course, the photographing in the rotating state can obtain a satisfactory image when the shutter speed of the camera is a high speed.

In this case, the captured image may be a still image or may include a still image and a moving image.

On the other hand, the present invention, as shown in (a) of Figure 12 of the accompanying drawings, the control unit 140 may capture the image by specifying the vertical angle of the camera 110.

That is, when the control unit 140 transmits a control signal to the tilting driving means 122, the motor 2 (M2) of the tilting driving means 122 is operated to rotate the rotating plate 2 (122a), and the rotating plate 2 (122a) and The camera 110 fixed to the axis is rotated by a predetermined angle to take a picture.

In this case, as shown in (b) of FIG. 12, the up and down rotation is performed by the sensor 2 132b counting the counter hole 2 132a formed in the rotating plate 2 122a to control the position angle signal for each designated angle. ), And the controller 140 transmits an operation stop signal to the tilting driving means 122 at a predetermined angle to stop the rotation of the camera 110.

While performing the panning and tilting operation as described above, the image of the surveillance region is taken by the camera 110. At this time, the image signal obtained through the camera 110 is converted into a digital signal by the controller 140, and the converted Between the digital image signal (VITS; Vertical Interval Test Signal) between the rotational speed data of the camera provided by the drive unit 120, the angle data of the camera provided by the sensor unit 130 and the sound signal input from the outside as a digital signal It converts and captures the photographing position signal of the camera 110 and transfers it to the memory or the entire memory and the monitor corresponding to the designated angle.

In this case, of course, the external sound input / output unit 171 and the internal sound input / output unit 172 may be further included in the controller 140 for bidirectional input / output of sound such as receiving sound from the outside or outputting sound to the outside. (See FIGS. 1 and 2)

The sound may be all sounds generated around a sensing area, or may be voice related to a contact between two detectors or a contact between a general person and a monitor, or may be announcement or music provided by a monitor or a monitoring center. There is also.

This sound may be an audio signal through the MP3.

In the accompanying drawings, reference numeral P denotes a printed circuit board in which an electric circuit including a power supply unit for supplying power to the present invention and motor drivers 1, 2 (121c, 122c) of the drive unit 120 is designed and connected. Groups 171 and 172 may be connected.

While the invention has been described and illustrated in connection with a preferred embodiment for illustrating the principles of the invention, the invention is not limited to the configuration and operation as such is shown and described.

Rather, those skilled in the art will appreciate that many modifications and variations of the present invention are possible without departing from the spirit and scope of the appended claims.

Accordingly, all such suitable changes and modifications and equivalents should be considered to be within the scope of the present invention.

1 is a block diagram schematically showing the overall configuration of a system according to an embodiment of the present invention.

Figure 2 is a block diagram showing in more detail the overall configuration of the system according to an embodiment of the present invention.

3 is a perspective view showing a mechanical configuration according to an embodiment of the present invention.

4 and 5 is an exploded perspective view showing in more detail the mechanical configuration according to an embodiment of the present invention.

6 and 7 are cross-sectional views showing the mechanical configuration according to an embodiment of the present invention.

8 to 10 are cross-sectional views showing the operating state of the wiper portion of the present invention.

11A) and b) are plan views showing the panning operation state of the present invention.

Figure 12a), b) is a side view showing a tilting operation state of the present invention.

<Description of the symbols for the main parts of the drawings>

100: CCTV camera system 101: case body

102: base plate 110: camera

111: camera bracket 120: drive unit

121: panning drive means 121a: rotating plate 1

121b: support plate 121c: motor driver 1

122: tilting driving means 122a: rotating plate 2

122c: Motor driver 2 130: Sensor part

131: panning sensor 131a: counter hole 1

131b: sensor 1 132: tilting sensor

132a: Counter Hole 2 132b: Sensor 2

140: control unit 141: operation means

142 processing means 150 memory section

151: Total memory 152 ~ 159: Specified angle memory

160: monitor 161: full monitor

162 ~ 169: Specified angle monitor 171: External sound I / O

172: internal sound I / O M1, M2: motor

200: wiper portion 210: solenoid

211: solenoid bracket 220: wiper

221: rotation axis 222: wiper frame

223: Cleaner 224: Magnet 1

225: guide rail 1 226: magnet 2

227: guide rail 2

Claims (9)

Dome-shaped photographing to accommodate the camera 110 that is rotated by the driving force of the motor 1 (M1) provided inside the case body 101, and is fitted to one end of the case body 101 to protect the camera 110 In the rotatable CCTV camera system 100 provided with a window 103, the solenoid to draw out the operation time when the wiper control signal of the control unit 140 for controlling the operation of the camera system while rotating along the camera 110 is applied 210; The wiper 220 is in close contact with one side along the circumference from the top of the dome of the photographing window 103, and when the operation period of the solenoid 210 is pulled out, the wiper 220 wipes the surface of the photographing window while rotating in the same rotational direction as the camera. Wiper device of a closed circuit television camera system, characterized in that it comprises a wiper unit 200 to. The closed-circuit television camera of claim 1, wherein the case main body 101 is a dome-shaped case in which one end is blocked by the base plate 102 and the other end is blocked by the photographing window 103. Wiper device of the system. The method of claim 1, wherein the control unit 140 comprises a control means for setting the photographing angle, the rotational speed, the rotational angle and the operation time of the wiper unit 200 of the camera 110; And a processing means (142) for driving the wiper unit (200) according to the period set by the manipulation of the manipulation step (141). The method of claim 1, wherein the solenoid 210 of the wiper 200 is a pushing means for rotating the wiper 220 by periodically drawing out the operation period according to a predetermined operating time of the control unit 140. Wiper device for a closed circuit television camera system. The wiper device of claim 1, wherein the solenoid 210 is fixed to a support plate 121b for supporting the rotation of the camera 110 by the solenoid bracket 211. The method of claim 5, wherein the support plate 121b has a groove formed in the periphery, the center of which is fixed to the rotating plate 1 (121a) connected to the pulley and the rotation belt fixed to the shaft of the motor 1 (M1) is characterized in that it is rotated Wiper device for closed circuit television camera systems. The method of claim 1, wherein the wiper 220 is a rotating shaft fixed to the central portion of the dome outer portion of the photographing window 103; One end is fitted to the rotation shaft 221 and the other end is a wiper frame 222 extending in the direction of the case body 101 along the outer circumferential surface of the photographing window 103; A cleaner 223 fixed to an inner surface of the wiper frame 222 to be in close contact with the photographing window 103; A magnet 1 224 fixed to the other end of the wiper frame 222; A guide rail 1 (225) fixed to an outer circumferential portion of the photographing window 103 to provide a rotation path of the magnet 1 224; A magnet 2 226 that is pushed and rotated by the pulled-out operation of the solenoid 210; And a guide rail 2 (227) fixed to an inner circumferential portion of the photographing window 103 to provide a rotation path of the magnet 2 (226). The wiper device of claim 7, wherein the magnet 1 (224) and the magnet 2 (226) face each other with the photographing window (103) interposed therebetween. The wiper of the closed circuit television camera system of claim 7, wherein the guide rails 1, 2 (225, 227) are made of a non-metallic material such as a synthetic resin in consideration of the magnetic force of the magnets 1, 2 (224, 226). Device.

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