JP3211843U - Operation confirmation device for surveillance camera - Google Patents

Abstract

The present invention provides an operation confirmation device for a monitoring camera that can receive an imaging signal output from a monitoring camera having a different transmission method by switching according to the transmission method, and can confirm an imaging operation of the monitoring camera. The imaging signal reception method is switched according to whether an imaging signal output from a surveillance camera is output by a first transmission method or a second transmission method. When the first external connection terminal 6A and the second external connection terminal 6B are provided and the imaging signal of the surveillance camera is output by the first transmission method, the drive power from the first external connection terminal 6A to the surveillance camera When the imaging signal from the monitoring camera is received and the imaging signal of the monitoring camera is output by the second transmission method, the driving power is supplied from the first external connection terminal 6A to the monitoring camera. Then, the imaging signal from the monitoring camera is received by the second external connection terminal 6B. [Selection] Figure 2

Description

  The present invention relates to an operation confirmation device for a surveillance camera, and more particularly to an operation confirmation device for a surveillance camera including a monitor for confirming an imaging operation of the surveillance camera.

  As the surveillance camera in the surveillance system, various cameras are used according to the purpose, and the transmission method of the imaging signal is also different. For example, in the method of synchronizing the surveillance camera, the synchronization signal is transmitted by receiving the synchronization signal from the outside and transmitting the image in synchronization, or by transmitting the synchronization signal from the camera video receiver using the coaxial cable for image transmission. There is a method of synchronizing a plurality of surveillance cameras.

  However, in the conventional monitoring system, there is a problem that it is not possible to use a variety of synchronous monitoring cameras in accordance with the purpose. In particular, there are multiple camera synchronization methods, such as a method that operates with an external synchronization signal and a method that operates with a synchronization signal from a coaxial cable. There was a problem that only the camera could be connected.

  In view of this, there is a conventional monitoring system that proposes a monitoring system that can use both an external synchronization monitoring camera and an internal synchronization monitoring camera (see, for example, Patent Document 1).

JP 2000-244896 A

  The monitoring system proposed in Patent Document 1 has a configuration including a synchronization signal generation circuit for synchronizing a plurality of monitoring cameras including a monitoring camera that requires an external synchronization signal with the monitor or frame switcher of the monitor unit. The external synchronization monitoring camera and the internal synchronization monitoring camera can be used together.

  However, in the monitoring system proposed in Patent Document 1, an external synchronization monitoring camera and an internal synchronization monitoring camera can be used together. However, by switching between monitoring cameras with different transmission methods, The imaging operation cannot be confirmed.

  The present invention has been made to solve the above-described problem, and can monitor and receive an imaging signal output from a monitoring camera having a different transmission method according to the transmission method, and can check an imaging operation of the monitoring camera. It aims at providing the operation check device for cameras.

  In order to solve the above-mentioned problem, the surveillance camera operation confirmation device according to the first device includes a monitor for confirming the imaging operation of the surveillance camera, and the imaging signal output from the surveillance camera is transmitted first. An operation check device for a monitoring camera that can switch the reception method of the imaging signal according to whether it is output by a method or a second transmission method, and supplies driving power to the monitoring camera , A first connector as a first external connection terminal for connecting a coaxial cable for receiving an imaging signal from the monitoring camera, and a second connector for connecting a coaxial cable for receiving an imaging signal from the monitoring camera. A second connector as an external connection terminal, and when the imaging signal of the surveillance camera is output by the first transmission method, the coaxial cable connected to the first external connection terminal When driving power is supplied to the visual camera and an imaging signal from the monitoring camera is received, and the imaging signal of the monitoring camera is output by the second transmission method, it is connected to the first external connection terminal Driving power is supplied from a coaxial cable to the monitoring camera, and an imaging signal from the monitoring camera is received by the coaxial cable connected to the second external connection terminal.

  According to the above configuration, it is possible to switch and receive an imaging signal output from a monitoring camera with a different transmission method according to the transmission method, and to check an imaging operation of the monitoring camera on the monitor.

  According to a second aspect of the present invention, there is provided the surveillance camera operation check device according to the first aspect, wherein the first transmission method outputs the imaging signal as an analog signal, and the second transmission method is the imaging signal. Is output as a digital signal.

  According to the above configuration, for example, both a CV (compact video) camera (CVC) that outputs an imaging signal as an analog signal and an HD-SDI camera (HSC) that outputs an imaging signal as a digital signal can be supported. it can.

  According to a third aspect of the present invention, there is provided the monitoring camera operation check device according to the first or second aspect, wherein an overcurrent is generated when the driving power is supplied to the monitoring camera between the first external connection terminal. An overcurrent limiting circuit for limiting is wired.

  According to the above configuration, it is possible to limit the overcurrent at the time of power supply to the surveillance camera and to prevent a failure due to a short circuit of the power supply wiring.

  According to a fourth aspect of the present invention, there is provided the surveillance camera operation confirmation device according to any one of the first to third aspects, wherein the surveillance camera operation confirmation device has a plan view from a pair of long sides and a pair of short sides. A substantially rectangular box-shaped casing, and a battery serving as a power source for supplying driving power to the monitoring camera is disposed at a central portion of the casing in the long side direction and / or the short side direction. Features.

  According to the said structure, since the battery which is a heavy article will be arrange | positioned in the approximate center of a box-type housing, stability improves. For this reason, the weight balance when suspending a box-type housing on a neck etc. using a strap etc. is good, and a monitor can be visually recognized at a stable angle.

  An operation check device for a surveillance camera according to the present invention is a pair of projections that are connected to the side surfaces of the box-shaped housing corresponding to the pair of short sides so that the mounting angle can be adjusted, and project from the lower end of the box-shaped housing in a downturned state. A strap ring is provided.

  According to the above configuration, when one of the side strap rings on the side of the box-shaped enclosure is lowered, both sides of the box-type enclosure are placed on the left side of the box-type enclosure when the surveillance camera operation confirmation device is placed on a horizontal surface such as the ground. A plurality of states can be taken, such as a state in which the right side of the box-type housing is higher than the left side, and the direction of the monitor can be adjusted. For this reason, at the time of visual recognition of the monitor in the outdoors where sunlight shines, reflection of light can be suppressed and the angle can be easily adjusted. Moreover, since the back surface of the box-shaped housing is not grounded, electromagnetic shock due to grounding can be prevented.

  As described above, according to the present invention, it is possible to switch and receive an imaging signal output from a monitoring camera having a different transmission method according to the transmission method, and to check an imaging operation of the monitoring camera. Can be provided.

It is a figure which shows the internal structure of the operation confirmation apparatus for surveillance cameras which concerns on an Example. It is a top view which shows the state which connected the CV camera (Compact camera (trademark)) to the operation confirmation apparatus for surveillance cameras which concerns on an Example. It is a side view which shows the state which connected the CV camera to the operation confirmation apparatus for surveillance cameras which concerns on an Example. It is a side view which shows the state which connected the HD-SDI camera to the operation confirmation apparatus for surveillance cameras which concerns on an Example. It is a figure which shows the mounting state which the operation confirmation apparatus for surveillance cameras concerning an Example can take.

(Example)
Hereinafter, the monitoring camera operation check device according to the embodiment will be described. In the following description, the width direction of the monitoring camera operation check device is X, the depth direction is Y, and the height direction is Z. Further, in the following description, numerals or alphabetical strings described after the configuration names are reference numerals for referring to the corresponding configurations in the respective drawings of the embodiments, and are not intended to limit the concept or shape of the configurations. Absent.

(Configuration of surveillance camera operation check device)
FIG. 1 is a diagram illustrating a configuration of a monitoring camera operation check apparatus according to an embodiment of the present invention. As shown in FIG. 1, the surveillance camera operation confirmation device 1 according to the embodiment includes a lower casing 101 and an upper portion that are composed of a pair of long sides in the width direction X and a pair of short sides in the depth direction Y in plan view. It has a substantially rectangular box-shaped casing (casing) constituted by the casing 102.

  The upper casing 102 accommodates the liquid crystal monitor 3 for confirming the imaging operation of the surveillance camera. Specifically, the user can connect the surveillance camera to the surveillance camera operation confirmation device and confirm the video imaged by the surveillance camera on the liquid crystal monitor 3. The liquid crystal monitor 3 may be an organic EL monitor or the like.

  A monitoring camera (CV camera (compact video camera (registered trademark))) that transmits an imaging signal by the first transmission method (analog signal) is externally connected (CVC connection) to the side surface 101a of the lower casing 101. A first connector 6A (first external connection terminal) is provided. The first connector 6A is a bayonet lock type connector for supplying a driving power to the surveillance camera and connecting a coaxial cable for receiving an imaging signal from the surveillance camera.

  Further, on the side surface 101a of the lower casing 101, a second connector 6B (external connection (HSC connection)) is connected to a monitoring camera (HD-SDI camera) to which an imaging signal is transmitted by the second transmission method (digital signal). A second external connection terminal). The second connector 6B is a bayonet lock type connector for connecting a coaxial cable for receiving an imaging signal from the surveillance camera. Note that drive power cannot be supplied to the surveillance camera from the second connector 6B.

  In addition, the first connector 6A and the second connector 6B are provided on the side surface 101a of the lower casing 101 at a predetermined interval, and the lower casing 101 between the first connector 6A and the second connector 6B is provided. At the center of the side surface 101a, a strap ring 7 through which a strap 7S (see FIG. 2) for hanging the surveillance camera operation confirmation device on the neck or the like is passed is rotatably attached by a pin 70. Similarly to the side surface 101a, the strap ring 7 through which the strap 7S for hanging the surveillance camera operation confirmation device is hung around the neck or the like is rotatably attached by a pin 70 at the center of the side surface 101b of the lower casing 101. . 3 and 4, the strap ring 7 is configured to protrude from the lower end of the lower casing 101 by a protruding amount 7T when the strap ring 7 is in the down-tilted state.

  Further, as shown in FIG. 3, a changeover switch 61A (for example, a toggle switch) of the first connector 6A is provided on the upper surface of the first connector 6A on the side surface 101a of the lower casing 101, and an upper portion of the second connector 6B. Further, a changeover switch 61B (for example, a toggle switch) of the second connector 6B is provided. The user operates the changeover switch 61A and / or 61B to switch the type of the monitoring camera, specifically, the CV camera (CVC connection) or the HD-SDI camera (HSC) connection, and The imaging operation can be confirmed.

  As shown in FIG. 1, a battery box 20 that houses a battery 2 serving as a power source for supplying driving power to the surveillance camera is disposed at the center in the pair of long sides in the width direction X of the lower casing 101. ing. By placing the heaviest battery 2 in the center in the width direction X and the depth direction Y of the surveillance camera operation confirmation device, a balance is maintained when the surveillance camera operation confirmation device is hung on the neck or the like by the strap 7S or the like. . In this embodiment, the battery 2 is a secondary battery that can be charged from an external power source, but may be a primary battery.

  The circuit board 1 is disposed on the left side of the battery box 20. The circuit board 1 includes an electronic voltage adjustment circuit that adjusts the voltage of the battery 2 to a voltage (for example, 24V or 12V) suitable for the liquid crystal monitor 3 and the monitoring camera, and an IC circuit that encodes an imaging signal output from the monitoring camera. Etc. are implemented.

  Further, the surveillance camera operation check device includes a power connector 8 for connecting an external power source to the side surface 101c of the lower casing 101, and can be driven by an external power source. The power connector 8 is electrically connected to the battery box 20 via the circuit board 1, and the battery 2 (secondary battery) can be charged while the surveillance camera operation confirmation device is driven by an external power source. It has become.

  Furthermore, a power switch 5 is provided on the side surface 101c of the lower casing 101 for turning on / off the operation confirmation device for the monitoring camera. The user can use the surveillance camera operation confirmation device by turning on the power switch 5. Further, when not in use, the battery 2 can be prevented from being consumed by turning off the power switch 5. In addition, a terminal lamp 5L that can confirm whether the power of the monitoring camera operation confirmation device is ON or OFF is provided on the side surface 101c of the lower casing 101. The terminal lamp 5L is, for example, an LED (light emitting diode), and is turned on when the power of the monitoring camera operation check device is ON, and is turned off when the power of the monitoring camera operation check device is OFF.

  In addition, the monitoring camera operation confirmation device of the present embodiment includes an overcurrent limiting circuit 4 that limits overcurrent when driving power is supplied to the monitoring camera inside the side surface 101d of the lower casing 101. That is, in the monitoring camera operation check device of the present embodiment, the overcurrent limiting circuit 4 is mounted between the power source 2 and the first connector 6A to limit the overcurrent when supplying driving power to the monitoring camera. Yes. The overcurrent limiting circuit 4 may be mounted on the circuit board 1.

(CV camera (compact video camera) connection)
As shown in FIG. 2, when connecting a CV camera as a monitoring camera externally (CVC connection), one terminal CC1 of the coaxial cable CC is connected to the monitoring camera CVC, and the other terminal CC1 is checked for operation for the monitoring camera. Connect to the first connector 6A of the device. Further, as shown in FIG. 3, the changeover switches 61A and 61B are both tilted to the right (side surface 101c side). Accordingly, driving power is supplied from the first connector 6A to the monitoring camera CVC, and an imaging signal output from the monitoring camera CVC can be received, and an image captured by the monitoring camera CVC can be confirmed on the liquid crystal monitor 3. .

(HD-SDI camera connection)
As shown in FIG. 4, when connecting an HD-SDI camera as a monitoring camera externally (HSC connection), one terminal CC2 of two coaxial cables is connected to the monitoring camera HSC, and the other terminal CC2 is monitored. Connect to the first connector 6A and the second connector 6B of the camera operation check device. Further, as shown in FIG. 4, the changeover switch 61A is tilted to the right side (side surface 101c side), and the changeover switch 61B is tilted to the left side (side surface 101d side). Accordingly, the driving power A is supplied from the first connector 6A to the monitoring camera HSC, and the imaging signal VS output from the monitoring camera HSC is received by the second connector 6B, and the captured image of the monitoring camera HSC is displayed on the liquid crystal monitor. 3 can be confirmed.

(Installation of surveillance camera operation check device)
Next, states that can be taken when the surveillance camera operation confirmation device is placed on a horizontal surface such as the ground using the strap ring 7 will be described with reference to FIG.

(First placement state)
Both strap rings 7 provided on both side surfaces 101a and 101b of the lower casing 101 of the surveillance camera operation confirmation device are set in a down-turned state (downward in the height direction Z). Since the strap ring 7 protrudes from the lower end of the lower casing 101 in a downturned state, as shown in FIGS. 5 (b1) and 5 (c1), the surveillance camera operation confirmation device is lifted by the strap ring 7, Only the lower end on the side surface 101c side of the casing 101 is in a grounded state. Note that, depending on the balance state of the surveillance camera operation confirmation device, only the lower end on the side surface 101d side of the housing 101 can be grounded.

(Second placement state)
Next, only the strap ring 7 provided on the side surface 101b of the lower casing 101 of the operation confirmation device for the monitoring camera is set in the down state (downward in the height direction Z). Since the strap ring 7 protrudes from the lower end of the lower casing 101 in a downturned state, as shown in FIGS. 5 (b2) and 5 (c2), the side surface 101b side of the lower casing 101 is lifted by the strap ring 7, Only the lower end on the side surface 101a side of the casing 101 is in a grounded state.

(Third placement state)
Next, only the strap ring 7 provided on the side surface 101a of the lower casing 101 of the surveillance camera operation confirmation device is set in the down state (downward in the height direction Z). Since the strap ring 7 protrudes from the lower end of the lower casing 101 in the downturned state, the side surface 101a side of the lower casing 101 is lifted by the strap ring 7 as shown in FIG. 5 (b3) and FIG. 5 (c3). Only the lower end on the side surface 101b side of the casing 101 is in a grounded state.

  As described above, the monitoring camera operation checking device according to the embodiment includes the monitor 3 for checking the imaging operation of the monitoring camera, and the imaging signal output from the monitoring camera is the first transmission method (analog signal). The monitoring camera operation confirmation device can switch the imaging signal reception method depending on whether the signal is output by the second transmission method (digital signal).

  The driving power is supplied to the monitoring camera, and the first external connection terminal (first connector 6A) for connecting the coaxial cable for receiving the imaging signal from the monitoring camera and the imaging signal from the monitoring camera are received. And a second external connection terminal (second connector 6B) for connecting a coaxial cable to output the first external signal when the imaging signal of the surveillance camera is output by the first transmission method (analog signal). Drive power is supplied to the monitoring camera from the coaxial cable CC connected to the connection terminal (first connector 6A), and an imaging signal is received from the monitoring camera (CVC connection).

  When the imaging signal of the surveillance camera is output by the second transmission method (digital signal), driving power is supplied to the surveillance camera from the coaxial cable connected to the first external connection terminal (first connector 6A). The imaging signal from the surveillance camera is received by the coaxial cable connected to the second external connection terminal (second connector 6B) (HSC connection).

  For this reason, it is possible to switch and receive an imaging signal output from a monitoring camera with a different transmission method according to the transmission method, and to check the imaging operation of the monitoring camera on the monitor.

  In the surveillance camera operation check device according to the present embodiment, the first transmission method outputs an imaging signal as an analog signal, and the second transmission method outputs the imaging signal as a digital signal.

  For this reason, for example, both a CV camera (CVC) that outputs an imaging signal as an analog signal and an HD-SDI camera (HSC) that outputs an imaging signal as a digital signal can be supported.

  The surveillance camera operation confirmation device according to the present embodiment has an overcurrent limiting circuit 4 that limits overcurrent when supplying drive power to the surveillance camera between the first external connection terminal (first connector 6A). Is wired.

  For this reason, it is possible to limit the overcurrent at the time of supplying power to the surveillance camera and to prevent a failure due to a short circuit of the power supply wiring.

  The surveillance camera operation check device according to this embodiment is a substantially rectangular box-shaped housing having a pair of long sides and a pair of short sides in plan view, and serves as a power source for supplying drive power to the surveillance camera. 2 is arranged in the central part of the housing in the long side direction and / or the short side direction.

  For this reason, since the battery 2 which is a heavy article will be arrange | positioned in the approximate center of a box-type housing, stability will improve. Further, the weight balance is good when the box-type housing is suspended on the neck or the like using the strap 7S or the like, and the monitor 3 can be visually recognized at a stable angle.

  The operation check device for a surveillance camera according to the present invention is a pair of strap rings that are connected to the side surfaces of a box-shaped housing corresponding to a pair of short sides so that the mounting angle can be adjusted and project from the lower end of the box-shaped housing in a downturned state. 7 is provided.

  For this reason, when one or the other / both sides of the strap ring 7S on the side surface of the box-type casing is lowered, the left side of the box-type casing is the right side when the surveillance camera operation check device is placed on a horizontal surface such as the ground. It is possible to take a plurality of states such as a higher state, a state in which the right side of the box-type housing is higher than the left side, and the direction of the monitor 3 can be adjusted. For this reason, at the time of visual recognition of the monitor 3 in the outdoors where sunlight shines, reflection of light can be suppressed and the angle can be easily adjusted. Moreover, since the back surface of the box-shaped housing is not grounded, electromagnetic shock due to grounding can be prevented.

DESCRIPTION OF SYMBOLS 1 Circuit board 101 Lower housing | casing 101a-101d Side surface 102 Upper housing 2 Battery 20 Battery box 3 Liquid crystal monitor 5 ON / OFF switch 6A 1st connector (1st external connection terminal)
6B Second connector (second external connection terminal)
61A, 61B selector switch 7 Strap ring 70 pin 8 Power connector CC Coaxial cable X Width direction Y Depth direction Z Height direction

Claims (5)

A monitor for confirming an imaging operation of the monitoring camera, and the imaging depending on whether an imaging signal output from the monitoring camera is output by the first transmission method or the second transmission method; An operation confirmation device for a surveillance camera capable of switching a signal reception method,
A first external connection terminal for supplying a driving power to the monitoring camera and connecting a coaxial cable for receiving an imaging signal from the monitoring camera;
A second external connection terminal for connecting a coaxial cable for receiving an imaging signal from the monitoring camera;
When the imaging signal of the monitoring camera is output by the first transmission method, the driving power is supplied to the monitoring camera from the coaxial cable connected to the first external connection terminal, and the imaging signal from the monitoring camera is supplied. Receive
When the imaging signal of the monitoring camera is output by the second transmission method, driving power is supplied from the coaxial cable connected to the first external connection terminal to the monitoring camera, and the second external connection terminal An operation confirmation apparatus for a surveillance camera, wherein an imaging signal from the surveillance camera is received by a connected coaxial cable. The first transmission method outputs the imaging signal as an analog signal,
The surveillance camera operation check device according to claim 1, wherein the second transmission method outputs the imaging signal as a digital signal.   The surveillance camera according to claim 1, wherein an overcurrent limiting circuit is provided between the first external connection terminal and an overcurrent limiting circuit that limits an overcurrent when driving power is supplied to the monitoring camera. Operation check device. The surveillance camera operation check device is:
The plan view is a substantially rectangular box-shaped casing made up of a pair of long sides and a pair of short sides,
4. The monitoring according to claim 1, wherein a battery serving as a power source for supplying driving power to the monitoring camera is disposed in a central portion of the casing in the long side direction and / or the short side direction. Camera operation check device. The mounting angle is connected to the side surface of the box-shaped housing corresponding to the pair of short sides so as to be adjustable,
The monitoring camera operation check device according to any one of claims 1 to 4, further comprising a pair of strap rings protruding from a lower end of the box-shaped casing in a downturned state.

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