JPH05276513A - Security system - Google Patents

Abstract

PURPOSE:To provide a security system utilizing a CATV system surely transmitting security information at every house and to provide a CATV converter for which a fire sensor or the like is directly connected. CONSTITUTION:This system is provided with an abnormality detecting means 8 such as a fire sensor and a gas leakage sensor, an abnormality signal input section receiving an abnormality detection signal, a transmission output section outputting a DC signal to a CATV line 3, a power supply output section supplying power to a television receiver, and a CATV converter 6 connected to the abnormality signal input section and provided with a central processing unit controlling the DC signal output of the transmission output section and the power supply output section at the time of the input of the detection signal, and also with a television controller 7 having a relay means activated by the DC signal of the transmission output section and a power output section supplying power to the television receiver 9 through the operation of a relay means.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a security system for issuing an alarm to a resident when an abnormal situation such as a fire, a gas leak, or theft occurs, and in particular, reliably transmits security information in the house to each house. The present invention relates to a security system using a CATV system that can be used.

[0002]

2. Description of the Related Art Conventionally, a system using a so-called house information board has been widely used as a means for transmitting security information such as fire, gas leak, and theft in each dwelling unit. Here, when various sensors are directly connected to the housing information board or when there is an abnormality by connecting to a security company via the housing information board or the like, various warnings are issued by the housing information board.

Further, as a security system using the CATV system, various sensors are connected to a so-called security interface provided for each door, and
Security information is collected through the line, and when there is an abnormality, the center side of the CATV system controls the CATV converter to forcibly turn on the TV or forcibly switch channels. ..

[0004]

However, in the security system based on the housing information board as described above, the amount of information that can be displayed on the housing information board is generally small, and the information display is limited to an alarm sound and a predetermined message. It was In addition, the housing information board is often installed in a place where there are usually no people, such as a front door, and in such a case, the alarm itself may be missed or missed.

Further, in the security system using the CATV system, the door-to-door alarm is not issued, and even if the fire sensor is issued due to the misfire of a small fire, the alarm is issued to the entire area. This was one of the causes of problems with the reliability of the alarm. In addition, there is a problem that a system using CATV cannot give any warning to a room in which a converter is not installed.

An object of the present invention is to solve the above-mentioned problems and to provide a security system using a CATV system capable of reliably transmitting security information in the house for each dwelling unit. Also, a CA that is used in the security system and that can directly connect sensors and the like.
It is also an object to provide a TV converter.

[0007]

In order to achieve the above object and solve the conventional problems, the present invention provides a CATV system in which a television signal is transmitted from a center device side through a communication line and distributed to each terminal. , An abnormality detecting means for detecting an abnormal situation such as a fire or a gas leak and outputting a detection signal;
An abnormal signal input section that is connected to the terminal side of the ATV system and that inputs the detection signal, a transfer output section that outputs a DC signal to the CATV line, and a power supply output section that supplies power to the television receiver. A CATV converter including a central processing unit which is connected to the abnormal signal input unit and controls the DC signal output of the transfer output unit and the power output of the power output unit when the detection signal is input; and a terminal side of the CATV system. Is connected in parallel with the above CATV converter,
Relay means operated by the DC signal of the transfer output section,
And a television control device having a power supply output section for supplying power to the television receiver by the operation of the relay means.

According to the invention of claim 2, the television signal received by the antenna is transmitted from the center device side through the communication line and is connected to the terminal side of the CATV system for distributed supply to each terminal. An input unit connected to the line and an output unit for connecting a television receiver, etc., a tuner for selecting a predetermined channel for a television signal sent from the center device side between the input unit and the output unit, and a modulated wave CAT with demodulation circuit for extracting video and audio signal components
In the V converter, an abnormality signal input unit for inputting the detection signal of an abnormality detection means for detecting an abnormal situation such as a fire or a gas leak and outputting a detection signal, and a transfer output unit for outputting a DC signal to the CATV line. And a power output unit for supplying power to the television receiver, and the abnormal signal input unit connected to control the DC signal output of the transfer output unit and the power output of the power output unit when the detection signal is input. A central processing unit is provided, and in the invention of claim 3, a character / voice signal is additionally connected to the central processing unit, and when the detection signal is input, a character / voice signal is issued by a command from the central processing unit. A character / speech memory to be output, and a switching means arranged after the demodulation circuit and selectively switching between the output section and the demodulation circuit or the character / speech memory according to a command from the central processing unit. It is characterized in that it comprises.

Further, in the invention of claim 4, CA
Connected to the TV terminal side in parallel with the CATV converter,
The present invention is characterized in that the television control device box is provided with a relay unit that operates by a DC signal from the CATV converter and a power output unit that supplies power to the television receiver by the operation of the relay unit.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of a security system according to an embodiment of the present invention. The security system according to the present invention is applied to a fire in each dwelling unit,
An abnormal situation such as a gas leak is transmitted to a person in a dwelling unit by displaying an alarm screen or the like on the television using the CATV system.

The present invention utilizes a CATV system, and the configuration thereof is roughly divided into a center device side 1 and a terminal side 2, and a television signal or the like is transmitted via a CATV line 3. Further, the terminal side 2 is branched into each dwelling unit 4, and a CATV line 3 is branched into each dwelling unit by a distributor 5 for each room.

The center device side 1 is provided with a television broadcast or FM.
The configuration includes a head end 11 for receiving broadcasts and the like, an alarm display screen output unit 12 for outputting an alarm display screen, a modulator 13, and a mixer 14. Here, the alarm display screen is sent out on a predetermined specific channel, and the viewer cannot normally select this. On the other hand, in the dwelling unit 4, the CATV converter 6 and the control box (television control device) 7 are connected to the terminal 41 of each room branched from the distributor 5. The CATV converter 6 is connected with various sensors (abnormality detection means) 8 such as a fire detector and a gas leak detector, and a television receiver (hereinafter abbreviated as television) 9. Further, the control box 7 is connected to the terminal 41 in a room different from the CATV converter 6, and the television 9 is also connected to this.

FIG. 2 is a block diagram showing the configuration of the CATV converter 6 used in the security system. The CATV converter 6 is, as shown in FIG.
Similar to a normal CATV converter, in addition to the role of transmitting the TV signal from the CATV line 3 by modulating it to the TV 9, the alarm input from various sensors 8 is received and the alarm is output to the center device side 1 at the same time. Box 7
Is output to the.

As shown in FIG. 2, the CATV converter 6 has an input terminal (input section) 61 connected to a terminal 41 of the CATV line 3, an output terminal (output section) 62 connected to a television or the like, and a center. A tuner 63 that tunes a television signal sent from the device side 1 to a predetermined channel, and a demodulation circuit 64 that extracts video and audio signal components from a modulated wave.
Is similar to the conventional CATV converter.
In the present invention, an abnormal signal input section 65 for inputting detection signals from various sensors 8, a transfer output section 66 for outputting a DC signal to the CATV line 3, and a power supply for supplying power to the television receiver. A central processing unit 68 (hereinafter referred to as CPU) which is connected to the output unit 67 and the abnormal signal input unit 65 and controls the DC signal output of the transfer output unit 66 and the power output of the power output unit 67 when the detection signal is input. And abbreviated). The CPU 68 is connected to the input terminal 61 and the CATV line 3 via the modem 81 and the transfer output unit 66 via the filter 82.

Here, the abnormal signal input section 65 is connected to the sensor 8
Is provided with a terminal 65a for mounting the sensor, and is connected to the CPU 68 to transmit a detection signal from the sensor 8 to the CPU 68.
Further, the notification output unit 66 is composed of a relay 66a, and closes the contacts in response to a signal from the CPU 68 to send a DC signal. This DC signal is passed through the filter 82 to CA.
It is sent to the TV line 3 and sent to each terminal 41 through the distributor 5. The filter 82 is used here in order to prevent a television signal from flowing into the relay 66a and causing impedance mismatch. Further, the power output unit 67 is composed of a power control unit 67a connected to the CPU and an outlet 67b, and the outlet 67b is connected to the power outlet of the television 9.

On the other hand, the control box 7 is a CATV
The television 9 is forcibly turned on in response to the DC signal emitted from the transfer output unit 66 of the converter 6. FIG. 4 shows the circuit configuration. This control box 7
Is an input terminal 71 connected to the terminal 41, an output terminal 72 connected to the television 9, a relay (relay unit) 73 and a relay 73 which are operated by a DC signal emitted from the transfer output unit 66 of the CATV converter 6. And a power output section 74 for supplying a 100V AC power to the television 9. Also, the relay 73
Has a contact 75 for controlling the buzzer 79 and a contact 76 for controlling the power supply to the television 9. In this case, these contacts are normally open, and are closed only when receiving the DC signal from the transfer output unit 66 of the CATV converter 6. A switch 77 used to turn on / off the television 9 regardless of the transfer output is separately provided in the power output unit 74. Normally, this switch 77 turns on / off the television 9. Further, the television signal has its direct current component cut by the capacitor 78 and is output to the output terminal 72.

By these, the control box 7
The relay 73 is activated by the DC signal from the transfer output unit 66 of the CATV converter 6, and the switch 77 is turned off.
Even in the case of, the switch of the television 9 is forcibly turned on.

Next, the operation of this embodiment will be described.
Usually, the viewer enjoys various TV programs through the CATV converter 6 in the room, and through the control box 7 in the room without the CATV converter 6. Here, the television 9 is powered by the CATV converter 6 and the power output section 6 of the control box 7.
ON / OFF by connecting to 7, 74 and operating the CATV converter 6 and control box 7.
I do.

Now, let us assume a case where a fire occurs in one of the dwelling units 4. At this time, the fire sensor 8 detects it and outputs a detection signal. This fire sensor 8 is CA
Since the detection signal is connected to the abnormal signal input unit 65 of the TV converter 6, the detection signal is input to the CPU 68 via the abnormal signal input unit 65 of the CATV converter 6. Here, the CPU 68 performs the following operation in response to the input of the abnormal signal.

First, the power output section 67 of the television 9 is operated to turn it on when the television 9 is not powered on.
Then, the tuner 63 is controlled to switch to the channel to which the alarm display screen is transmitted. As a result, a message such as "Fire occurrence, please check the origin of the fire" is displayed on the screen, and a voice or alarm sound to that effect is given to notify the fire occurrence. Note that this channel cannot be selected even if the viewer normally operates the CATV converter as described above, and can be selected only when there is an abnormal signal input, and the alarm display screen appears unnecessarily. There is no such thing. At the same time, the CPU 68 works on the transfer output unit 66 to close the relay 66a and output a DC signal. As a result, the abnormality occurrence is notified to each room in the dwelling unit 4 via the terminal 41. Furthermore, the CPU 68
Simultaneously notifies the center device side 1 via the modem 81 that an abnormal signal has been input. As a result, the center device side 1 performs appropriate processing such as dispatching a staff member.

Next, the operation of the control box 7 when the DC signal is output from the CATV converter 6 will be described. The DC signal is transmitted to the terminal 4 of the CATV line 3.
1 is input to the input terminal 71. Then, this signal activates the relay 73 to close the contacts 75 and 76. As a result, the buzzer 79 sounds and the switch of the television 9 is turned on. Therefore, even a person in this room can know the occurrence of the abnormality.

In this case, the alarm display screen is not displayed on the TV 9 in the room where the control box 7 is placed, but the TV 9 is suddenly turned on even if the person in the room does not perform any operation. The alarm effect is fully achieved.

Next, another embodiment of the CATV converter 60 used in the security system according to the present invention will be described. FIG. 5 is a block diagram showing the configuration of the CATV converter 60. This CATV converter 60 is
In addition to the CATV converter 6 described above, a character / voice memory 91 and a changeover switch (switching means) 92 are provided. Other configurations are the same as those described above.

Here, the character / speech memory 91 is a memory for storing a predetermined message in advance, and the CPU 6
An appropriate command is selected according to command 8 and output. That is, for example, when a fire sensor reports, a message such as "Fire occurred, please check the origin of the fire" is displayed, and when a gas leak is detected, "Gas leak occurs, please check the gas plug.""
A message such as is output.

Further, the changeover switch 92 includes a demodulation circuit 64.
Provided between the output terminal 62 and the demodulation circuit 64 or the character / speech memory 91.
Switching based on the 8 command. This change-over switch 92 is usually connected to the demodulation circuit 64 side, and the viewer cannot switch it from the outside. Therefore, CPU6
8 gives a command, that is, a message is sent from the character / voice memory to the output terminal 62 only when an abnormal signal is input.

The operation of the CATV converter 60 will be described. An abnormal signal is input to the CPU 68, and the power output unit 67
Similar to the CATV converter 6 described above, the notification output unit 66 is controlled and the fact is notified to the center device side 1. The CATV converter 60 differs from the CATV converter 6 described above in the following points. That is, the CPU 68
The character / voice memory 91 is instructed to output a message according to the detected abnormal situation. At the same time, the selector switch 92 is switched to the character / voice memory 91 side. In addition,
In this case, it is not particularly necessary to send the alarm display screen from the center device side 1, and in that case, no instruction is given to the tuner 63. As a result, the predetermined message is sent to the television 9. On the other hand, the transfer to the control box 7 is performed, and the alarm is activated in other rooms as well, as described above.

In the embodiment, only the alarm in the dwelling unit is given, but it is also possible to give an alarm to all dwelling units or neighboring dwelling units from the center device side 1 which has received the notification from the CPU 68. Further, although the DC output is used for the transfer, it goes without saying that other known signal transmission means may be used.

[0028]

As described above, according to the security system of the present invention, a fire sensor or the like is directly connected to the CATV converter, a control box is provided in another room, and a DC signal is sent from the CATV converter when an abnormality occurs. By sending it out to control the control box, the room or CAT far from the home information board
There is an effect that an abnormal situation can be surely transmitted to a room without a V converter.

Further, there is an effect that this system can be used instead of the house information board. Therefore, the installation space and the construction cost can be saved. Further, there is an effect that a door-to-door alarm can be issued, which can improve the alarm reliability.

On the other hand, according to the CATV converters of claims 2 and 3, there is an effect that the sensor or the like of the CATV converter can be directly connected. Therefore, the security interface can be omitted, and the facility construction cost can be reduced.

Further, according to the invention of claim 4, the CATV is provided by providing the relay which operates only when an abnormality occurs.
There is an effect that it is possible to easily and surely know the occurrence of an abnormality even in a place where the converter is not installed.

[Brief description of drawings]

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

FIG. 2 C used in the security system of the present invention
It is a block diagram which shows the structure of an ATV converter.

FIG. 3 is an explanatory diagram showing the operation of a CATV converter according to the present invention.

FIG. 4 is a block diagram showing a circuit configuration of a control box used in the security system of the present invention.

FIG. 5 is a block diagram showing the configuration of another CATV converter used in the security system of the present invention.

[Explanation of symbols]

 1 Center device side 2 Terminal side 3 CATV line 6, 60 CATV converter 7 Control box (TV control device) 8 Sensor (abnormality detection means) 9 Television receiver 61 Input terminal 62 Output terminal 63 Tuner 64 Demodulator circuit 65 Abnormal signal input section 66 Transfer Output Unit 67 Power Output Unit 68 Central Processing Unit (CPU) 73 Relay (Relay Means) 74 Power Output Unit

Claims (4)

[Claims] 1. A CATV system in which a television signal is transmitted from a center device side through a communication line and distributed and supplied to each terminal, and an abnormality detecting means for detecting an abnormal situation and outputting a detection signal, and a terminal side of the CATV system. An abnormal signal input section for inputting the detection signal, a transfer output section for outputting a DC signal to the CATV line, a power output section for supplying power to the television receiver, and the abnormal signal input And a central processing unit that controls the DC signal output of the transfer output unit and the power output of the power output unit when the detection signal is input, and the CATV converter on the terminal side of the CATV system. The relay means connected in parallel and operated by the DC signal from the transfer output section, and the operation of the relay means supply power to the television receiver. A security system, comprising: a television control device having a power supply output section for performing. 2. A CATV system connected to a terminal side of a CATV system, which transmits a television signal received by an antenna from a center device side through a communication line and distributes and supplies it to each terminal.
An input unit connected to the line and an output unit for connecting a television receiver, etc., a tuner for selecting a predetermined channel for a television signal sent from the center device side between the input unit and the output unit, and a modulated wave In a CATV converter equipped with a demodulation circuit for extracting video and audio signal components, an abnormal signal input unit for inputting the detection signal of an abnormality detection means for detecting an abnormal situation and outputting the detection signal, and a DC signal for C
A transfer output section for outputting to the ATV line, a power supply output section for supplying power to the television receiver, and a DC signal output of the transfer output section connected to the abnormal signal input section when the detection signal is input. And a central processing unit for controlling the power output of the power output unit.
converter. 3. The central processing unit is connected to the central processing unit, and when the detection signal is input, characters or characters are input according to a command from the central processing unit.
A character / speech memory for outputting a sound signal; and a switching means arranged after the demodulation circuit for selectively switching between the output section and the demodulation circuit or the character / speech memory according to a command from the central processing unit. The CATV converter according to claim 2. 4. A relay means connected in parallel to a CATV converter on the terminal side of the CATV and operated by a DC signal from the CATV converter, and a power output for supplying power to a television receiver by the operation of the relay means. And a television control unit box.