JP2008104077A - Television camera device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a monitor camera device capable of simplifying a work with the installation of a camera. <P>SOLUTION: A general purpose ceiling rosette, which is used for installing an illumination appliance, is applied when a camera body 10 is attached to a ceiling S. The rosette cap 4 of the ceiling rosette is attached to the housing 1 of the camera body 10. The illumination appliance mounted on the rosette socket 6 of the ceiling rosette attached to the ceiling S is detached, and the rosette cap 4 of the camera body 10 is engaged with the rosette socket 6 instead. Thus, both the attachment of the camera body 10 and power source supply are performed. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a television camera used by being attached to a lower surface of a ceiling or a wall surface, and more particularly to a television camera device suitable for indoor monitoring.

  In recent years, the installation of surveillance cameras has progressed from the standpoint of maintaining safety and security maintenance, and results have been seen in crime prevention and deterrence. However, the TV cameras used here for surveillance cameras include Usually, power for operation is required, so it is not enough to simply install a surveillance camera where it is needed. In most cases, when installing a surveillance camera, a dedicated camera is used up to the vicinity of the installation location. The power cord was pulled in and power was being supplied.

  By the way, this does not cause much problem when the installation time of the surveillance camera is at the time of new construction or renovation of the building or the like to which the surveillance camera is installed.

  However, when installing a surveillance camera later in an existing building or the like, it will be necessary to newly pull in a dedicated power cord, and a new work such as opening a hole for installing the surveillance camera in the ceiling etc. It becomes a problem because it is necessary. This also applies to the case where the installation position of the surveillance camera needs to be changed for some reason.

  Therefore, in a certain prior art, paying attention to the existence of lighting equipment installed in a building or the like, a camera apparatus that takes in power for operation from a power cord that supplies power to the lighting equipment is proposed. (For example, refer to Patent Document 1).

On the other hand, although not directly related to this, a surveillance camera in which the camera device is detachable from the ceiling or the like has also been proposed as a conventional technique (see, for example, Patent Document 2).
JP 2005-184167 A Japanese Patent Laid-Open No. 11-298766

  The above prior art does not give consideration to simplifying the installation of the surveillance camera, and when installing the surveillance camera later in an existing building, etc., it is necessary to draw in a dedicated power cord or drill a hole. In addition, this is the same when the installation position is changed, and each time the camera is moved, the above-described work is added, resulting in a cost increase.

  It is an object of the present invention to provide a surveillance camera device that can simplify the work associated with camera installation.

  The above-described object is to provide a general-purpose ceiling rosette comprising a rosette cap attached to a lighting fixture and a rosette socket attached to a ceiling in a television camera apparatus in which a casing of a television imaging unit is attached to a ceiling to image a room. A rosette cap is attached to the housing, and the cap portion attached to the housing is engaged with the rosette socket attached to the ceiling, so that the installation of the housing on the ceiling and the television imaging unit are performed. This is achieved by configuring the power supply path to be obtained at the same time.

  At this time, the television imaging unit includes power line conveying means, and at least one of the control signal for the television imaging unit and the video signal output from the television imaging unit is transmitted through the power supply path. The television imaging unit may include wireless transmission means, and at least one of the control signal for the television imaging unit and the video signal output from the television imaging unit is transmitted by wireless communication. It may be carried out as described.

  According to the present invention, since it is possible to newly install a camera or change the position under a control of cost increase, it is possible to easily cope with a change in the monitoring system and greatly contribute to ensuring safety. it can.

  Hereinafter, the television camera apparatus according to the present invention will be described in detail with reference to the illustrated embodiments. FIG. 1 is an embodiment of the present invention. This is an embodiment when the present invention is applied to a television camera for monitoring. In the figure, 1 is a housing (housing), 2 is an imaging unit (television imaging unit), and 3 is a dome cover. 4 is a rosette cap, 5a and 5b are hook terminals, 6 is a rosette socket, 7 is a hook engaging portion, 8 is a mounting hole, 8 is a power cord, 10 represents the camera body, and S is the ceiling Represents.

  First, the housing 1 is made of, for example, a synthetic resin material in a substantially cylindrical shape as shown in the figure, and at one end portion thereof, that is, the lower end portion in the drawing, the imaging unit 2 is formed. However, a rosette cap 4 is attached to the other end portion, that is, the upper end portion in the drawing, for example, in a state protected by a dome cover 3 made of polycarbonate resin. The rosette cap 4 is provided with hook terminals 5 a and 5 b, which are connected to the power supply unit of the imaging unit 2.

  At this time, the rosette socket 6 is attached to the ceiling S by, for example, screws inserted through the attachment holes 8. The rosette socket 6 is provided with hook engaging portions 7 a and 7 b and is connected to the power cord 9.

  Then, next, the rosette cap 4 and the rosette socket 6 will be described. These are general-purpose appliances called so-called ceiling rosettes that are used in combination when the lighting fixture is detachably attached to the ceiling. That is. In use, first, the hook terminals 5a and 5b of the rosette cap 4 are inserted into the widened portions of the hook engaging portions 7a and 7b of the rosette socket 6 as shown by the one-dot chain line in the figure. In this manner, the rosette cap 4 is overlaid on the rosette socket 6 and then rotated in the direction indicated by the arrow in the figure.

  Then, the hook terminals 5a and 5b are thereby engaged with the hook engaging portions 7a and 7b of the rosette socket 6, and the rosette cap 4 is fixed to the rosette socket 6. In addition, the hook terminals 5a and 5b and the hook terminals Since the engaging portions 7a and 7b are in contact with each other, an electrical connection between them can be obtained at the same time.

  On the other hand, when removing, the rosette cap 4 only needs to be rotated in the opposite direction to that at the time of wearing, and therefore can be used as a detachable attachment.

  The rosette cap 4 is originally attached to a lighting fixture, and its hook terminals 5a and 5b are connected to a light emitting part such as a fluorescent lamp of the lighting fixture, and are attached to a rosette socket 6 attached to the ceiling S. By engaging the rosette cap 4, attachment of the ceiling of the lighting fixture and formation of an electric circuit for supplying power to the lighting fixture can be obtained at the same time.

  Therefore, in this case, the rosette socket 6 is originally installed on the ceiling S in order to attach the lighting fixture to a predetermined position of the ceiling S, and the lighting fixture is attached to this. This figure shows a state in which the lighting apparatus is removed.

  Therefore, in this embodiment, first, a lighting fixture at a position where the monitoring camera is desired to be installed or a lighting fixture in the vicinity of the lighting fixture is selected and removed from the rosette socket 6 there. Instead, the rosette cap 4 of the camera body 10 is fitted into the rosette socket 6 and the camera body 10 is mounted. The removal of the luminaire at this time is due to the original function of the ceiling rosette, so it is natural that this can be easily performed, and the camera body 10 can be easily attached. This is because the rosette cap 4 provided in the camera body 10 at this time is of the same standard as the cap of the lighting fixture removed at this time, that is, a general-purpose sealing rosette cap.

  Therefore, according to this embodiment, when installing the surveillance camera, it is not necessary to perform additional work such as drawing in a dedicated power cord or perforating the ceiling plate, simply removing the lighting fixtures there, Instead, it is only necessary to attach the camera body 10, and therefore it is possible to easily improve the safety by strengthening the monitoring posture while suppressing an increase in cost.

  By the way, in this case, in order to actually operate the camera as a surveillance camera, it is necessary to capture a video signal from the imaging unit 2, and thus a signal transmission unit for this purpose is required. At this time, the signal line may be drawn out from the camera body 10 separately. However, in this case, it is unnecessary to pull in the dedicated power cord. It ends in.

  Therefore, an embodiment in which no signal line is required will be described next.

  First, FIG. 2 shows an embodiment of the present invention in which a signal line is not required by the power line carrier system. In this case, as shown in the figure, a power supply circuit 20, an oscillation circuit 21, and a modulation circuit 22 are included in the camera body 10. , Coupling capacitors 23a and 23b, a demodulating circuit 24, and coupling capacitors 25a and 25b.

  Here, first, the power supply circuit 20 has its input connected to the hook terminals 5a and 5b, and thereby inputs commercial AC power of voltage 100V supplied from the outside via the power cord 9 (FIG. 1), From now on, it functions to output the DC power P necessary for the operation of the equipment in the camera body 10. Accordingly, although not specifically described, the camera body 10 described with reference to FIG.

  Next, the oscillation circuit 21 generates a carrier signal C of, for example, 100 megahertz order, and the generated carrier signal C is supplied to the modulation circuit 22. Therefore, the modulation circuit 22 receives the video signal V supplied from the imaging unit 2, thereby modulating the carrier signal C and generating a modulated wave signal F. At this time, the output of the modulation circuit 22 is connected to the hook terminals 5a and 5b via the coupling capacitors 23a and 23b. Therefore, the modulated wave signal F output from the modulation circuit 22 is supplied from the hook terminals 5a and 5b to the external monitor monitor side through the power cord 9. Therefore, on the monitoring monitor side, if the modulated wave signal F given through the power cord 9 is demodulated, a video signal by the power line multiplexing method can be obtained, and the signal line can be made unnecessary.

  By the way, in the embodiment of FIG. 2, a demodulating circuit 24 is further provided, and its input is connected to the power cord 9 through coupling capacitors 25a and 25b. The demodulating circuit 24 is tuned to a carrier signal having a frequency different from that of the carrier signal C described above. Therefore, on the outside monitor monitor side, a carrier signal having a frequency different from that of the carrier signal C described above is used as a carrier wave, and a control signal X is added to this as a modulated wave signal G, which is connected to the power cord 9. If the power line is supplied, the control signal X can be obtained from the demodulation circuit 24, and the operation of the imaging unit 2 can be remotely controlled from the monitoring monitor side.

  Next, FIG. 3 shows an embodiment of the present invention in which a signal line is not required by a wireless transmission method. In this case, as shown in the figure, a power supply circuit 20, a transmission circuit 30, and an isolator circuit are included in the camera body 10. 31, an antenna 32, and a receiving circuit 33 are provided.

  First, the transmission circuit 30 uses the video signal supplied from the imaging unit 2 as a modulation input, thereby modulating a carrier wave signal having a frequency suitable for wireless transmission of the video signal, and generating a transmission signal M to generate an isolator circuit. Supplied to the antenna 32 via 31.

  As described above, the power supply circuit 20 outputs the DC power P necessary for the operation of the devices in the camera body 10.

  At this time, the isolator circuit 31 separates the signal from the transmission circuit 30 and the signal from the antenna 32, the transmission signal M is supplied only to the antenna 32, and the signal from the antenna 32 is input only to the reception circuit 33. To work.

  On the other hand, at this time, the receiving circuit 33 is tuned to a frequency different from the carrier frequency of the transmission signal M, and the signal having the same carrier frequency as the frequency at which the receiving circuit 33 is tuned in the radio wave sensed by the antenna 32. Is captured as a received signal R. The received signal R is demodulated and supplied to the imaging unit 2 as a control signal X.

  Therefore, in the case of the embodiment of FIG. 3, if a receiving circuit tuned to the carrier frequency of the transmission signal M is provided on the monitoring monitor side, the video signal of the imaging unit 2 can be obtained from this, and together with this, If a transmission circuit having the same carrier frequency as that of the reception signal R is provided and a control signal X is input as a modulation signal, the operation of the imaging unit 2 can be remotely controlled from the monitor monitor side.

  Therefore, in the embodiment of the present invention, in addition to the television camera apparatus shown in FIG. 1, the television imaging unit includes a power line carrying means, and the control signal for the television imaging unit and the television imaging unit are used. At least one of the output video signals is transmitted through the power supply path, and the television imaging unit includes a wireless transmission means, and the television imaging unit is controlled. There is a television camera device characterized in that at least one of the signal and the video signal output from the television imaging unit is transmitted by wireless communication.

It is explanatory drawing which shows one Embodiment of the television camera apparatus by this invention. It is a block diagram which shows other one Embodiment of the television camera apparatus by this invention. It is a block diagram which shows another one Embodiment of the television camera apparatus by this invention.

Explanation of symbols

1: Housing (housing)
2: Imaging unit (television imaging unit)
3: Dome cover 4: Rosette cap 5a, 5b: Hook terminal 6: Rosette socket 7: Hook engagement part 8: Mounting hole 9: Power cord 10: Camera body S: Ceiling C: Carrier signal F: Modulation wave signal ( (For transmission)
G: Modulation wave signal (for reception)
M: Transmission signal P: DC power R: Reception signal V: Video signal X: Control signal

Claims (1)

In a television camera device in which a casing of a television imaging unit is attached to the ceiling so as to image a room,
Attach the rosette cap of a general-purpose sealing rosette consisting of a rosette cap attached to a lighting fixture and a rosette socket attached to the ceiling to the housing;
By engaging the cap portion attached to the housing to the rosette socket attached to the ceiling,
A television camera apparatus characterized in that the installation of the casing on the ceiling and the formation of a power supply path for the television imaging unit can be obtained simultaneously.

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