JPH05334588A - Security alarm system - Google Patents

Abstract

PURPOSE:To provide a security alarm system which can use a TV receiver as a display monitor. CONSTITUTION:The TV receiver having the function of D<2>B being the sub-bus of a general purpose AV system is connected to a signal processing unit 3 by way of the cable 12 of D<2>B. Security sensors 21... transmit a security signal to the signal processing unit 3 by radio. The signal processing unit 3 prepares display data based on the received security signal to send it to the TV receiver 1 by way of a cable 12 by a D<2>B packet. The TV receiver 1 makes a message by OSD to be displayed in the presently-viewed screen which is displayed by a display 1a based on display data being sent and simultaneously emit an alarm tone. A TV receiver 1 is connected to a TV common listening system through the signal processing unit 3 and can receive general broadcasting.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a security notification system for fire, gas leaks and the like.

[0002]

2. Description of the Related Art In the conventional security notification system,
A dedicated monitor and alarm unit were installed to notify the security information.

[0003]

However, the conventional structure in which a dedicated monitor and alarm unit are installed has a problem that the cost of the entire security notification system is high and that an installation space is particularly required. The present invention has been made in view of the above problems, and an object of the present invention is to use a TV receiver as a security information display means, a security notification system that can be easily constructed at low cost and in a small space. To provide.

[0004]

To achieve the above object, the present invention provides a security signal receiving section for receiving a signal from a security sensor, and a D ² B signal transmitting / receiving section corresponding to a D ² B function. And a control unit that creates display data based on the received security signal and transmits the display data as D ² B packets through the D ² B signal transmitting / receiving unit. A sensor and a TV receiver that has a D ² B function and sends and receives D ² B packets to and from the signal processing unit are provided. The TV receiver serves as a display unit that displays security information based on the display data. Used.

A signal processing unit body is formed in the same shape as an off-the-shelf wiring device for TV common listening, which is formed by the module size of the embedded wiring device, and a coaxial cable for broadcasting reception of a TV receiver is formed on the surface of the device. And a connection part for connecting a cable from the D ² B function to the TV co-listening system.

[0006]

According to the present invention, the signal processing unit that receives the security signal from the security sensor creates display data for notifying security based on the security signal, and creates the display data. To send a D ² B packet to a TV with D ² B function
The security information can be displayed on the receiver, which eliminates the need for a dedicated monitor or alarm unit, reduces the cost of system construction, and saves space because no dedicated monitor or alarm unit is installed.

If the signal processing unit body is formed by a body having the same shape as a ready-made TV common listening wire appliance formed in the module size of the embedded type wire fitting, the same as the conventional TV common listening wire appliance. Since it can be embedded in the wall surface, further space saving can be achieved. In addition, since the connection part for connecting the broadcast receiving coaxial cable of the TV receiver and the connection part for connecting the cable from the D ² B function are provided on the surface of the body, the TV receiver can be easily connected, The system can be easily constructed.

[0008]

EXAMPLES The present invention will be described below with reference to examples. FIG. 1 shows a system according to an embodiment, which is a sub bus of a general-purpose AV system, Domesti.
c Data Bus is intended to be constructed utilizing ^{(D 2 B), D 2} B as a display unit of the security information
A TV receiver 1 having a function is used. And TV
A receiver 1, fire detection, gas leak detection, between the various security sensors 2 ₁ ... crime prevention detection such as by interposing a signal processing unit 3, the security sensor in the signal processing unit 3 2 ₁ ... security signal The display data is created based on the above, and this display data is sent to the TV receiver 1 by the D ² B protocol.

The security sensor 2 ₁ used here
... are arranged in a room or the like, and constitute a wireless type that transmits a security signal by radio waves. The wireless-type of the security sensor 2 ₁ ... signal processing unit 3 corresponds to is provided with a security signal receiving unit 4 for receiving a security signal transmitted by radio as shown in FIG. The signal processing unit 3 includes, in addition to the security signal receiving unit 4, a control unit 5 having a function of creating display data based on the security signal received by the security signal receiving unit 4 and a function of creating a D ² B packet. , A function of making a request to receive information indicating the status of the AV device, in this case, the TV receiver 1 by the D ² B packet set by the control unit 5 and a function of receiving the information indicating the status from the TV receiver 1, A D ² B signal transmission / reception unit 6 for transmitting a D ² B packet of display data based on the state information is provided, and these circuit units are built in the body 7 shown in FIG.

The body 7 is one of general embedded wiring equipment.
It has the same shape as an off-the-shelf wiring device for TV common listening that is formed to the dimensions of a continuous module, and is integrally provided with a mounting frame 8 for mounting in a switch box or an embedded hole in a wall surface, and the TV receiver 1 is provided on the surface. A coaxial connector 10 for TV common listening corresponding to, for example, an F-type plug provided at one end of the coaxial cable 9 for video signals from the TV receiver, and a connector 11 for connecting the cable 12 of D ² B from the TV receiver 1 are provided. ing. The connector 11 is connected to the D ² B signal transmitting / receiving unit 5 inside the body 7, and the coaxial connector 10 passes through the body 7 to form the body 7.
Connected to the connection terminal (not shown) provided on the back of the
It is adapted to be connected to the coaxial cable 13 of the common listening system.

The TV receiver 1 used in this embodiment is a commercially available TV receiver having the D ² B function shown in FIG. 4, and includes an on-screen display (hereinafter abbreviated as OSD) generation circuit section 14 and a speaker. An audio circuit unit 15, an image processing circuit unit 16 for displaying an image on the display 1a including a CRT, and a PIP monitor circuit unit 17 for displaying a sub-screen on the screen displayed on the display 1a.
, A tuner 18 for receiving TV broadcast, a video input terminal 22 for inputting an external video signal, a switch function for having a D ² B adapter function and for switching connection and controlling each of the above circuit parts, and the like. The control circuit section 19 is provided with a terminal section 20 for connecting the D ² B cable 12 to the control circuit section 19, and an antenna terminal section 21 for connecting the coaxial cable 9 to the tuner 18.

Next, the operation of this embodiment will be described based on the sequence diagram shown in FIG. When the security sensor 2 _1, such as a current example a fire sensor detects a fire, the security sensor 2 ₁ transmits the fire alarm signal is a security signal in radio waves. This transmitted fire alarm signal has information unique to the security sensor 2 ₁ ,
The security signal receiving unit 4 of the signal processing unit 3 that has received the fire notification signal provides the control unit 5 with data indicating the type of disaster and the location of the disaster. The control unit 5 assembles the OSD display data based on these data and creates a D ² B packet for sending this display data to D
^The D ² B packet is set in the ² B signal transmitting / receiving unit 5.

When the D ² B packet is set, D ² B
The signal transmitter / receiver 5 sends a status request D ² to the TV receiver 1.
The B packet is transmitted to the TV receiver 1. In the illustrated example, since the TV receiver 1 is already watching TV, the TV receiver 1 has the information on the operation status indicating that the TV is being watched in response to the status request.
² Returns the B packet to the signal processing unit 3. This T
The D ² B signal transmitting / receiving unit 5, which has received the information that the V is being viewed, transmits the D ² B packet of the display data to the TV receiver 1.

The D ² B packet of display data is for controlling the OSD display, and in the TV receiver 1, the control circuit section 1 is used.
9 determines the data content of the D ² B packet and causes the OSD generation circuit unit 14 to generate the character data of the message to be displayed by the OSD based on the received display data, and is currently being viewed on the display 1a. The message is displayed on the display 1a at the bottom of the screen. At the same time, the voice circuit section 15 produces an alarm sound under the control of the control circuit section 19 and activates the speaker. In other words, with this alarm sound,
The message display serves as a security notification.

In the display example of FIG. 1, a message "2F FIRE!" Is displayed by the OSD at the bottom of the screen of the building being viewed, indicating that a fire has now occurred on the second floor. The above sequence diagram shows the case where the TV receiver 1 is watching, but when the TV receiver 1 is not watching, processing such as performing display after turning on the TV receiver 1 Of course, is taken.

Although the wireless type security sensor 2 ₁ ... Is used in the above embodiment, a wired type security sensor 2 ₁ ′ may be used as shown in FIG. the unit 3 the security signal receiving unit 4 for receiving a security signal coming transmitted by wire 7 'provided, also a signal line 23 from the security sensor 2 ₁ security signal receiving section 4' is connected to the Therefore, the signal line connection terminal 24 is provided on the rear surface of the body.

[0017]

According to the present invention, the signal processing unit that receives the security signal from the security sensor creates display data for performing security notification based on the security signal, and creates this display data D ² B
Since packets are transmitted, security information can be displayed by using a TV receiver having a D ² B function as a display means. As a result, a dedicated monitor or alarm unit is not required, so the system construction cost is low and the dedicated Since no monitor or alarm unit is installed, there is an effect that no space is required for installation and space can be saved.

Further, if the signal processing unit main body is formed of a body having the same shape as a ready-made TV common listening wire appliance formed in the module size of the embedded type wiring fitting, it becomes similar to the conventional TV common listening wire appliance. Since it can be embedded in the wall surface, further space saving can be achieved. In addition, since the connection part for connecting the broadcast receiving coaxial cable of the TV receiver and the connection part for connecting the cable from the D ² B function are provided on the surface of the body, the TV receiver can be easily connected, The effect is that the system can be easily constructed.

[Brief description of drawings]

FIG. 1 is an overall system configuration diagram of an embodiment of the present invention.

FIG. 2 is a circuit configuration diagram of the signal processing unit of the above.

FIG. 3 is a perspective view of the signal processing unit of the above.

FIG. 4 is a circuit configuration diagram of the above TV receiver.

FIG. 5 is a sequence diagram for explaining the same operation as above.

FIG. 6 is an overall system configuration diagram of another conventional example.

FIG. 7 is a perspective view of the signal processing unit of the above.

[Explanation of symbols]

1 TV receiver 1a display 2 ₁ ... security sensor 3 signal processing unit 9 coaxial cable 12 cable

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Koji Kasashima 1048, Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works Co., Ltd. (72) Naoko Fujiwara, 1048, Kadoma, Kadoma City, Osaka Matsushita Electric Works Co., Ltd.

Claims (2)

[Claims] 1. A and Seryuti signal receiving unit for receiving signals from the security sensors, D ² corresponding to the D ² B function
A signal processing unit having a B signal transmitting / receiving unit and a control unit for creating display data based on the received security signal and transmitting the display data as D ² B packets through the D ² B signal transmitting / receiving unit is provided. The security sensor and a TV receiver for transmitting and receiving D ² B packets to and from the signal processing unit having a D ² B function are provided, and the TV receiver displays the security information by the display data. A security notification system characterized by being used as a display means for performing. 2. A signal processing unit body is formed in the same shape as an off-the-shelf wiring device for TV common listening, which is formed in the module size of an embedded wiring device, and a broadcasting receiving coaxial of a TV receiver is formed on the surface of the body. The security alert system according to claim 1, further comprising a connecting portion for connecting the cable to the TV common listening system and a connecting portion for connecting the cable from the D ² B function.