JPH07235995A - Gas security device - Google Patents

Abstract

PURPOSE:To effectively cope with an apartment house with many households, etc., by enabling the common use of a telephone line by the use of plural of gas security boards. CONSTITUTION:A centalized monitoring center I and the g&s security board arranged on a user II are connected via a telephone line III. By the gas security board II, the inspection of a meter data of a gas meter and various kinds of security data are notified to the centralized monitoring center I through the telephone line III. The side of a user is provided with plural gas security boards (20A, 20B...). When the gas security board 20A connected with the centralized monitoring center counts a prescribed number or more of the number of ringing to be transmitted from the centralized monitoring center, a switch SW 1 is switched to an Ma side and the terminal designation parameter contained in a telegraphic message is decoded in a telegraphic message analysis part A 2. When the 20A is designated, the communication of the 20A and the centralized monitoring center is performed. When 20A is not designated, 20B, 20C... are successively shifted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention connects a gas security panel installed in each home and a centralized monitoring center via a telephone line, and provides meter reading data of a gas meter in each home.
The present invention relates to a gas security device that reports various kinds of gas security data and the like to the central monitoring center through the telephone line.

[0002]

2. Description of the Related Art FIG. 3 is an overall configuration diagram for explaining an example of a gas security device to which the present invention is applied, in which I is a centralized monitoring center, II is a user (home), and II.
I is a telephone line, and the central monitoring center I and user II are
Connected via telephone line III. The centralized monitoring center I side is equipped with a CPU 11, a modem 12, a printer 13 and the like, and the user II side is indoors with a gas security panel 20, a telephone 21, a gas sensor 22 (gas alarm device), a fire sensor (fire). The receiver) 23, etc., is equipped with a gas meter 24, a gas cylinder 25, etc. outside, and the CPU 11 of the centralized monitoring center and the user's gas security panel 20 are connected via a telephone line III. For example, the meter reading value of the gas meter 24 is In response to a request from the centralized monitoring center I, or when the security panel 20 notifies the centralized monitoring center I at a predetermined date and time, or when the gas sensor 22 detects a gas leak, the security panel 20 concentrates. Notify Monitoring Center I of a gas leak.

The gas security board 20 includes a gas sensor 2
When the signal of gas leak from 2 is received, the shutoff valve of the gas meter 24 is automatically closed to ensure safety, and
Notify the central monitoring center I of the gas leak. Upon receiving the gas leak information, the centralized monitoring center I dispatches an inspector to the user to confirm the fact of the gas leak, and when the fact of the gas leak is confirmed, the countermeasure is executed.

[0004]

Therefore, the gas security panel 20 is used by several households (for example, 12 households).
Although it is suitable for use in condominiums and apartments, it is still not possible to accommodate condominiums and apartments with a large number of households (for example, 13 households or more).

The present invention has been made in view of the above-mentioned circumstances, and in particular, a plurality of gas security boards can be commonly used with one telephone line, so that it can be used for condominiums of many households. The purpose is to be able to respond effectively.

[0006]

In order to solve the above-mentioned problems, the present invention provides (1) a centralized monitoring center and a gas security panel installed in a user, which are connected via a single telephone line. A gas security device for reporting meter reading data of a gas meter and various security data from the gas security panel to the central monitoring center through the telephone line, wherein the user has a plurality of the gas security panels and is connected to the central monitoring center. From the specified gas security board, the board specified parameters included in the telegram transmitted from the central monitoring center are sequentially decoded, and based on the decoding result, the specified gas security board and the central monitoring center are Communication, and (2) gas security connected to the central monitoring center. The utility board detects the number of ringings transmitted from the centralized monitoring center, and when the number of ringings is equal to or more than a predetermined number, drives the gas security board to analyze a message transmitted from the centralized monitoring center. (3) As a result of the electronic statement analysis, if the gas security panel designated by the centralized monitoring center is not the gas security panel, the next gas security panel is driven and the gas security panel is also operated. , The next gas security panel analyzes the telegram sent from the centralized monitoring center, and until the specified gas security panel is reached,
The same operation is repeated in sequence, and further, (4) each gas security panel is provided with a changeover switch, a normally closed contact of the changeover switch is connected in series to a telephone, and a centralized monitoring center is designated. It is characterized in that the changeover switch is sequentially changed over to the open contact side to reach the gas security panel to perform the electronic statement analysis.

[0007]

[Function] One telephone line can be commonly used by a plurality of gas security boards, and therefore, it is possible to effectively cope with condominiums of a large number of households.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic block diagram for explaining one embodiment of the present invention. In the figure, I is a centralized monitoring center, II is a user, and III is a telephone line.
Are connected via a single telephone line III, and the centralized monitoring center I and the user II exchange various kinds of information as described with reference to FIG. Thus, in the present invention, a plurality of gas security boards (20A, 20B, 20C) as described above are provided on the user II side.
…) It is provided and these security boards 2
One telephone 21 can be used for 0A, 20B, 20C ...

In FIG. 1, SW1, SW2, SW3 ...
Is a changeover switch, A1, B1 are reception processing units, A2
B2 is a telegram analysis processing unit, A3 and B3 are terminal changeover switch drive units, and usually changeover switches SW1 and SW
2, SW3 ... Are connected to the normally closed contacts Ta, Tb, Tc ..., and the telephone set 21 can be used in exactly the same way as an ordinary telephone set. Further, the normally open contacts Ma, Mb, Mc of the changeover switches SW1, SW2, SW3 ...
The reception processing unit, the message analysis processing unit, and the terminal changeover switch driving unit described above are connected to the side.

The gas security board 20A connected to the centralized monitoring center has a ring detector R,
The ring detector R detects the ringing number transmitted from the centralized monitoring center. If there is a person on the user side and the phone goes off-hook when there is communication from the centralized monitoring center, the gas security panel and the centralized monitoring center cannot communicate, but when there is no person on the user side, or When the user does not go off-hook, for example, the ringing number is a predetermined number or more (for example, 20
If the ring detector R is activated when it rings more than once, the changeover switch of the gas security panel 20A can be switched from Ta to Ma by the ring detector R. The gas security boards 20A, 20
B, 20C ... are all the same standard, and naturally, 20B,
Although the ring detector R is also provided in 20C, the gas security boards (20B, 20C ... In the illustrated example) other than the gas security board (20A in the illustrated example) connected to the centralized monitoring center. No ring detector is used.

FIG. 2 is a flow chart for explaining the operation of the present invention. As described above, the ring detector R of the gas security board 20A is ringing with a Ph constant or more by communication from the centralized monitoring center as described above. When the number is detected, the changeover switch SW1 is changed from the normally closed contact Ta to the normally open contact Ma, and the gas security board 20A is activated. The gas security panel 20A analyzes the received message and checks the terminal designation parameter in the message.

As described above, the gas security board 20A receives a message from the centralized monitoring center and analyzes the message, and as a result, the parameter from the centralized monitoring center specifies the gas security board 20A. At some time, the gas security board 20A communicates with the centralized monitoring center as it is.

When the designated parameter from the centralized monitoring center does not designate the gas security board 20A, the switch switching drive section A3 of the gas security board 20A activates the switch switching drive section B3 of the gas security board 20B. , The gas security board 20
The switch SW2 of B is switched to the Mb side, and after a predetermined time (for example, 1 second), the switch SW1 of the gas security panel 20A is switched to the normally closed contact Ta side. By this procedure, the telephone line between the central monitoring center and the user will not be disconnected.

Therefore, thereafter, the communication from the centralized monitoring center is received by the gas security board 20B, and the gas security board 2B is used by the gas security board 20B.
When the same processing as 0A is performed and the gas security panel is not designated by the central monitoring center, the changeover switch SW3 of the next gas security panel 20C is set to the normally open contact M.
After switching to the c side, the same operation is sequentially repeated until the designated gas security board is reached.

[0015]

As is apparent from the above description, according to the present invention, since a plurality of gas security boards can be commonly used for one telephone line, there are many households such as condominiums and apartments. It is effective when applied to multi-family housing, and it is possible to perform meter reading and security for many homes at a low telephone charge.

[Brief description of drawings]

FIG. 1 is a main part configuration diagram for explaining an embodiment of a gas security device according to the present invention.

FIG. 2 is a flow chart for explaining the operation of the gas security device shown in FIG.

FIG. 3 is a diagram for explaining an overall configuration of a gas security device to which the present invention is applied.

[Explanation of symbols]

I ... Centralized monitoring center, II ... User, III ... Telephone line,
11 ... CPU, 12 ... Modem, 13 ... Printer, 20 ...
Gas security panel, 20A, 20B, 20C ... Main gas security, 21 ... Telephone, 22 ... Gas sensor, 23
… Gas meter, 24… Gas cylinder, SW1, SW2, S
W3 ... Changeover switch, A1, B1 ... Reception processing unit, A
2, B2 ... Telegram analysis unit, A3, B3 ... Terminal changeover switch driving unit.

Claims (4)

[Claims] 1. A centralized monitoring center and a gas security panel provided to a user are connected via one telephone line, and meter reading data of a gas meter and various security data are transmitted from the gas security panel through the telephone line. In a gas security device for reporting to the centralized monitoring center, the user is provided with a plurality of the gas security panels, and a message transmitted from the centralized monitoring center sequentially from the gas security panel connected to the centralized monitoring center A gas security device characterized by decrypting a panel designating parameter contained in, and enabling communication between the designated gas security panel and the centralized monitoring center based on the decryption result. 2. A gas security board connected to the centralized monitoring center detects the number of ringings transmitted from the centralized monitoring center, and drives the gas security board when the number of ringings is a predetermined number or more. The gas security device according to claim 1, wherein the electronic message transmitted from the centralized monitoring center is analyzed. 3. As a result of the electronic statement analysis, if the gas security panel designated by the centralized monitoring center is not the gas security panel, the next gas security panel is driven and the gas security panel is deactivated. Then, the next gas security panel analyzes a message transmitted from the centralized monitoring center, and thereafter, the same operation is sequentially repeated until the designated gas security panel is reached. The described gas security device. 4. Each of the gas security boards is provided with a changeover switch, a normally closed contact of the changeover switch is connected in series to a telephone, and the centralized monitoring center extends to a designated gas security board. The gas security device according to claim 1, wherein the changeover switch is sequentially changed over to the open contact side to perform the electronic statement analysis.