JP3084116B2 - TV camera device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a television camera device used for a TV door phone or the like, and more particularly to an improvement in a television camera device capable of moving a screen projected on a monitor up, down, left and right.

[0002]

2. Description of the Related Art For example, a television camera as disclosed in Japanese Patent Application No. 2-162346 filed on June 20, 1990 by the present applicant is known as a method for moving a screen displayed on a monitor up, down, left and right. In addition to the mechanical movement method, for example,
Japanese Patent Application No. 3-24 filed by the applicant on September 27, 1991
As disclosed in US Pat. No. 9792, there is also a method in which a screen taken by a television camera is displayed on a monitor by enlarging a part of the whole screen using a semiconductor memory, and a part to be projected is electronically moved up, down, left, and right. is there.

FIG. 5 is a block diagram of a TV door phone having a function of moving the above-mentioned camera mechanically and moving a screen reflected on a monitor up, down, left and right. The camera 5 of the camera unit 4 is mechanically moved up, down, left and right by an operation switch 2 provided on the monitor unit 1, and a video signal captured while the camera 5 is moving is transmitted to the monitor unit 1 via a signal line 6 to be monitored. Reflect on 3.

FIG. 4 is a flowchart for displaying a screen on the monitor 3 by the above-described method. First, the screen at the time when the monitor 3 is turned on (B1) is the screen at the OFF position (B2) because the orientation of the camera 5 is at the OFF position before turning ON.

[0005] Next, when the direction of the camera 5 is changed up, down, left and right by the operation switch 2 (B3), the screen of the movement destination is displayed (B4).

When the monitor 3 is turned off (B5), the orientation of the camera 5 remains as it is.

[0007] When the monitor 3 is turned on again, the screen at the position where the monitor 3 has been moved is displayed.

[0008] In the above-mentioned system for enlarging a part using a semiconductor memory and projecting it on a monitor, it is disclosed that the most frequent screen is set as an initial value.

[0009]

[Problems to be Solved by the Invention] Japanese Patent Application No. Hei 2-16234
According to the conventional technique disclosed in JP-A-2006-122, for example, the monitor is turned on while operating to display the screen moved to the right.
When the FF is turned on, the screen projected first when it is turned on next time is also the screen kept moving to the right. So first,
It must be moved to the left so that the central part is visible.

As described above, if the initial state of the position of the screen to be projected remains unchanged, it is not possible to know which position is being projected. .

Also, if the monitor is turned off in a state in which one end is projected, the number of cases where a visitor does not appear or the image appears toward the end of the monitor increases, and the screen is moved by the operation switch. Must.

In the method disclosed in Japanese Patent Application No. 3-249792, the area that has been displayed most frequently in a large number of times is counted and set as an initial value. There is the same problem as above. Also, the initial value may fluctuate depending on the type of the visitor, and when there are many children, the screen may be biased downward and may not be able to cope with the adult visitor. Therefore, it is necessary to operate the switch each time. Also, a counting circuit is required.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a television camera device capable of increasing the probability that a visitor is projected on a monitor and reducing the number of operations of moving the screen up, down, left and right. The purpose is to provide.

Television camera device of the present invention SUMMARY OF THE INVENTION, in television camera apparatus formed by a movable screen to be displayed on a monitor, scheduled the importance or the period
It is provided with setting means for presetting an initial screen with a high degree of waiting, and moving means for moving the screen displayed on the monitor, wherein the moving means automatically moves to the initial screen after the monitor is completed.

[0014]

The television camera device can move a screen displayed on a monitor. Important planned by the setting means
An initial screen having a high degree of expectation or a high degree of expectation is set in advance, and the position of the screen projected first is known in advance. The screen displayed on the monitor is moved by the moving means, and is automatically moved to the initial screen after the monitor ends. By setting the position where the visitor with the highest degree of importance, expectation, etc. stands most frequently in the initial state, the probability that the visitor will be projected on the monitor increases, and the number of operations to move the screen up, down, left, right decrease.

[0015]

FIG. 1 is a block diagram showing an embodiment of the present invention. In FIG. 1, a camera unit 4 includes a camera 5, a position detection circuit 8, a comparison circuit 9, and a decoder 1 that are sequentially connected to the camera 5.
0, a movement control circuit 11 and the like. The monitor unit 1 includes a monitor 3, an encoder 14, an initial screen setting circuit 13 connected to the monitor 3, an operation switch 15, and the like. The encoder 14 includes a comparison circuit 9 and a signal line 6-1.
And the monitor 3 is connected to the camera 5 by a signal line 6-2.

As shown in FIG. 3, the range in which the camera 5 can take an image is divided into five parts, for example, A to E, and the initial screen setting circuit 13 sets, for example, A on a semiconductor memory (not shown). Then, the encoder 14 encodes the set value A and transmits it to the camera unit 4. Camera unit 4
Then, the current position of the camera 5 is detected by the position detection circuit 8,
This is compared with the signal of the initial setting value A sent from the monitor unit 1 by the comparison circuit 9. The result is read by the decoder 10 and sent to the movement control circuit 11 for the imaging position of the camera 5. Based on this signal, the movement control circuit 11
Is controlled so that the imaging position of the image becomes the set value A.

FIG. 2 is an example of a flowchart of the operation of the apparatus of FIG. First, when the monitor 3 is turned on (A
1) First, an initial setting screen is displayed (A2).

Next, when the screen is operated up, down, left and right by the operation switch 15 (A3), the screen is also moved up, down, left, and right (A4). If there is no switch operation, the screen remains at the initial setting screen. If the monitor 3 is turned off (A
5) If the current position is different from the position on the initial setting screen, the screen automatically returns to the initial setting screen (A6), and then the entire apparatus is turned off (A7).

As a result, when the monitor 3 is turned on again, the initial setting screen A is displayed. In the above, the case where a semiconductor memory is used has been mainly described.
In the method proposed in 62346, a method of calculating the angle of the screen by measuring the operation time from the limit switch, or a method of providing an encoder for detecting the angle (or detecting the rotation speed of the motor or the like) is provided. The effect is the same in the method of calculating the position of. Also, the initial screen setting circuit 1
3 may be provided on the camera side and may be configured with a switch on the back of the camera. At this time, position data is created using a code switch.

Further, when the television camera apparatus is started, it is possible to automatically return to the initial screen setting position.

According to the present invention, the initial position of the screen can be set so that the most frequently visited position having a high degree of importance, expectation, or the like in the imaging range is reflected in the center of the monitor. Therefore, the probability that a visitor is projected without moving the screen increases, and the operation is simplified.

[0022]

According to the present invention, it is possible to easily perform the initial setting in the direction in which the angle of the camera is best used at the time of the installation work of the television camera, and there is no restriction on the mounting position (height and direction) of the camera. The monitor is operated by operating the operation switch indoors, and after the monitor is completed, the monitor is automatically returned to the initial screen setting position. Therefore, it is not necessary to manually return to the original position after the monitor. Therefore, when the visitor presses the call button,
Since the indoor monitor is projected from the most necessary position which is initially set, the operation of searching for a visitor using the indoor operation button is simplified.

[Brief description of the drawings]

FIG. 1 is a block diagram of one embodiment of the present invention.

FIG. 2 is a flowchart of the operation of the apparatus of FIG.

FIG. 3 is an explanatory diagram of an initial setting screen.

FIG. 4 is an example of a flowchart of a conventional apparatus.

FIG. 5 is a block diagram of an example of a conventional device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Monitor part 3 Monitor 4 Camera part 5 Camera 8 Position detection circuit 9 Comparison circuit 10 Decoder 11 Movement control circuit 13 Initial screen setting circuit 14 Encoder 15 Operation switch

Continuation of the front page (56) References JP-A-5-91516 (JP, A) JP-A-62-388683 (JP, A) JP-A-61-94905 (JP, U) JP-A-63-103983 (JP, A) , U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H04N 5/222-5/257 H04N 7/18 H04M 9/00 B25J 13/00

Claims (1)

(57) [Claims] 1. A television camera device capable of moving a screen projected on a monitor, a setting means for presetting an initial screen having a high expected importance or expected degree, and moving the screen projected on the monitor. A television camera device, comprising: a moving unit, wherein the moving unit automatically moves to the initial screen after a monitor is completed.