JPH0670322A - Video information transmission system - Google Patents

Abstract

PURPOSE:To display video information on a receiver of a house through interruption by using a common viewing line for a multiple dwelling house or the like to send the video information and sending a signal representing presence of the video information through an in-premises line. CONSTITUTION:Video information (video signal) from a video information generating section 3 or a document camera 4 in a management section A is modulated on a required channel by an RF modulation section 5, a mixer section 6 is used to mix the modulated information through a common viewing line for a television broadcast or the like and a distributer 7 is used to distribute the mixed signal to each house. A button provided to each house is depressed at a message input section 1 to inform the presence of the video information to a relevant house via a private branch of exchange 2 in an in-premises line. A lamp of a display section 8 or the like is lighted in a house section B based on the signal representing the presence of the video information, a discrimination section 9 discriminates the signal, a receiver 11 is controlled to receive the signal modulated by the RF modulation section to display video information by the image receiving control part 10 via a control part 13. Or the receiver is controlled to display the video information with a control signal from an input section 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video information transmission system, and a personal computer (hereinafter abbreviated as personal computer).
The present invention relates to a device for transmitting a video signal from a television or the like through a viewing line and displaying an interruption on a television receiver or the like (hereinafter abbreviated as a receiver) by a signal transmitted through a call signal line or the like.

[0002]

2. Description of the Related Art In order to transmit video information to each dwelling unit from a management room such as an apartment house, the image information is transmitted to each dwelling unit by superimposing the image information on a synoptic line such as a television broadcast. There is a device in which video information is displayed on a receiver when an operation for switching the receiver to a designated channel is performed. In this case, in a dwelling unit that neglected the channel switching operation of the receiver, the video information cannot be seen from the management room or the like.

[0003]

In the above case, whether or not the video information is transmitted depends on the operation of each dwelling unit. This may be sufficient if it is video information that does not have to be thorough, but this is a problem in the case of an emergency call, for example. In view of such a point, the present invention is a state in which image information is displayed on the receiver of each dwelling unit by operating a management room or the like when transmitting information that must be viewed by the resident, such as an emergency call. It is to provide what is forced to switch.

[0004]

In order to solve the above problems, the present invention provides a first input section which is installed in a management room or the like of an apartment house and which inputs a message for each dwelling unit through a private branch exchange, and image information. A video information generation unit that creates and outputs as a video signal, an RF modulation unit that modulates the signal from the video information generation unit into a high-frequency signal of an empty channel such as television broadcasting, and a signal from the RF modulation unit for television broadcasting, etc. A mixing unit that mixes with the co-listening line, a management unit that includes a distributor that distributes the high-frequency signal from the mixing unit to each dwelling unit, a television receiver that receives the signal from the distributor, and the message is present. Image information composed of a discriminating section for discriminating between the television receiver and an image receiving control section for controlling the television receiver to receive the signal modulated by the RF modulator based on the signal from the discriminating section. It is to provide a transmission system.

[0005]

With the above-described structure, in the video information transmission system according to the present invention, if a message is input for each dwelling unit by operating the management room, etc., the message lamp of the dwelling unit will light up, and at the same time, the dwelling unit will be turned on. Forcibly switch the receiver to the state where the video information from the control room is displayed.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a video information transmission system according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is a block diagram of essential parts of an embodiment of a video information transmission system according to the present invention. In the figure, (a) is a management unit and (b) is a dwelling unit. The management unit (1) 1 is a message input unit, which is provided with buttons for each dwelling unit, and when transmitting image information, after switching operation for displaying a message, the button of the dwelling unit is pressed. 2 is a private branch exchange, and a message input section 1
A required signal is output to the premises line of the dwelling unit based on the signal. A video information generation unit 3 is, for example, a personal computer or the like. Reference numeral 4 denotes a document camera for picking up an image of a document at a predetermined position and outputting a video signal, which is fixedly installed on a predetermined document table, for example. An RF modulator 5 appropriately modulates a video signal from the video information generator 3 or the document camera 4 into a high frequency signal of an empty channel such as television broadcasting. A mixing unit 6 mixes the signal from the RF modulation unit 5 with a co-listening line for television broadcasting or the like. 7 is a distributor,
The high frequency signal from the mixing unit 6 is distributed to each dwelling unit in the housing complex.

Reference numeral 8 of the dwelling unit (b) is a display part, which displays based on a signal from the management part (b) with a message. A discrimination unit 9 discriminates the presence of a message from the management unit (a). An image receiving control unit 10 controls the image receiving unit 11 to an image receiving state of the high frequency signal modulated by the RF modulating unit 5 based on the signal from the determining unit 9. The antenna terminal of the receiver 11 is connected to the distributor 7. 12 is an input section,
When the receiver 11 is switched to the image receiving state of the signal from the RF modulator 5 by the operation in the dwelling unit, the image information display is input. A control unit 13 controls each part of the dwelling unit (b).

Next, the operation of the video information transmission system according to the present invention will be described. An image created by the video information generation unit 3 or a document camera 4 for each dwelling unit from the management room of the apartment complex, etc.
When sending an image or the like picked up in, the key of the destination housing unit provided on the console panel of the message input unit 1 of the management unit (a) is pressed. The video information generation unit 3 or the document camera 4
Is input to the RF modulator 5, is modulated into a high frequency signal of a vacant channel such as television broadcast, and is mixed with a co-listening line such as television broadcast by the mixer 6.
It is distributed to each dwelling unit by the distributor 7.

By operating the console panel or the like, a signal is output from the message input section 1 to the private branch exchange 2, and the private branch exchange 2 sends a signal for displaying a message, for example, a required DC voltage, to the private branch line of the dwelling unit. . This signal is input to the display unit 8 of the dwelling unit (b), and a message is displayed by turning on a neon lamp or the like. Further, the signal with the message is input to the determination unit 9 via the control unit 13,
Determine if there is a message. Based on the determination by the determination unit 9, the image receiving control unit 10 causes the image receiving unit 11 to move to the R position via the control unit 13.
The F-modulation unit 5 controls the reception state of the high-frequency signal. It should be noted that an operating current detection circuit or the like is provided in the power source or the like of the image receiving device 11, the operation / non-operation of the image receiving device 11 is determined according to the determination of the presence of the message, and when not operating, the image receiving control unit 10 causes First, the power of the receiver 11 is turned on, and then the receiving channel is switched. As a result, the image from the video information generation unit 3 or the document camera 4 is displayed on the screen of the receiver 11. Even if the image information is not displayed because the power plug of the image receiver 11 is unplugged, it is possible to determine that the image information is being sent because the lamp of the display unit 8 is turned on. You can see video information if you operate it.

Further, the image information from the management room or the like can be displayed on the receiver by operating each dwelling unit. in this case,
The display section 8 is turned on by the signal from the message input section 1, but the image receiving control section 10 is not operated by this signal. That is, the "information display" key or the like of the input unit 12 is pressed to see the transmitted video information. The control unit 13 receives the signal from the input unit 12 and, based on the signal from the discrimination unit 9, the image receiving control unit.
The signal is output to 10, and the receiver 11 is controlled so as to receive the signal from the RF modulator 5. In this case, a preset signal is sent to the private branch exchange 2 via the control unit 13 based on the signal from the input unit 12. With this signal, the private branch exchange 2 stops the above-mentioned DC voltage transmission, and at the same time outputs a signal to the message input unit 1 to release the button display of the dwelling unit (each dwelling unit button of the message input unit 1 lights up when pressed. ), Inform the management room that the video information has been confirmed.

Further, the receiver 11 is used as a monitor device for mainly displaying the video information from the management section (a) or the like, and the video information is displayed in each dwelling unit without interrupting the viewing of television programs and the like. You may do it. In this case, the image receiving control unit
The monitor device is operated by the signal from 10 and the monitor device receives the signal from the RF cormorant portion 5 transmitted through the distributor 7. Further, the video signal from the video information generation unit 3 or the document camera 4 may be output in a base band and distributed to each dwelling unit.

[0012]

As described above, according to the video information transmission system of the present invention, the video information created by the video information generation unit (personal computer or the like) or the image by the document camera can be transmitted by television broadcasting or the like. It is transmitted to each dwelling unit by the common listening line, and the signal with image information from the management room to the dwelling unit is sent out through the in-house line.Therefore, new wiring is not required to transmit these signals. It is convenient when installing in a building. Also, by forcibly displaying the interrupt in the receiver of the dwelling unit specified in the management room, etc., emergency information can be reliably transmitted, so it is also effective as a system installed in hotels, hospitals, etc. in addition to collective housing. Is.

[Brief description of drawings]

FIG. 1 is a block diagram of essential parts of an embodiment of a video information transmission system according to the present invention.

[Explanation of symbols]

 B Management unit B Dwelling unit 1 Message input unit 2 Private branch exchange 3 Video information generation unit (PC, etc.) 4 Document camera 5 RF modulation unit 6 Mixing unit 7 Distributor 8 Display unit 9 Discrimination unit 10 Receiver insertion control unit 11 Television Receiver 12 Input section 13 Control section

Claims (3)

[Claims] 1. A first input unit installed in a management room or the like of an apartment house for inputting a message with a message for each dwelling unit via a private branch exchange, a video information generation unit for creating image information and outputting it as a video signal, and video information. An RF modulation unit that modulates a signal from the generation unit into a high frequency signal of an empty channel such as television broadcasting, a mixing unit that mixes the signal from the RF modulation unit into a co-listening line such as television broadcasting, and a mixing unit A management unit including a distributor that distributes a high-frequency signal to each dwelling unit, a television receiver that receives a signal from the distributor, a determination unit that determines the presence of the message, and the above based on the signal from the determination unit. A video information transmission system comprising a television receiver and a dwelling unit including an image reception control unit for controlling the reception of a signal modulated by the RF modulation unit. 2. A second input unit for inputting image information display to the dwelling unit, and a display unit for displaying based on a signal with a message from the management unit, and a second input when a signal is output from the determination unit. The television receiver is controlled to receive the signal from the RF modulation section by the signal from the second section.
The video information transmission system according to claim 1, wherein the input with the message of the first input unit of the management unit is canceled based on a signal from the input unit. 3. A monitor device connected to the distributor for displaying video information from a management unit is installed in each dwelling unit, and the monitor device is controlled to receive an image via an image receiving control unit based on a signal from the determination unit. The video information transmission system according to claim 1, wherein