JPH07226806A - Gas security device - Google Patents

Abstract

PURPOSE:To connect a centralized monitoring center to a user with a bidirectional telephone line and to call a user-side from a centralized monitoring center-side by means of a date, time and the number of ringing times, which are previously designated. CONSTITUTION:The centralized monitoring center I is connected to a gas security board 20 installed at every house II through the telephone line III. Meter- checking data of a gas meter 23 and security data of a gas sensor 22 are reported from the gas security board 20 to the centralized monitoring center I through the telephone line III. The telephone line III consists of the bidirectional ringing line, and the centralized monitoring center calls the gas security board 20 by the date, time and the number of ringing times, which are previously designated.

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.
Gas security device for reporting various kinds of gas security data etc. to the centralized monitoring center through the telephone line, and in particular, the telephone line is a bidirectional ringing circuit to enable communication between the centralized monitoring center and each home It is what

[0002]

2. Description of the Related Art FIG. 1 is an overall configuration diagram for explaining an example of a conventional gas security device to which the present invention is applied, in which I is a centralized monitoring center, II is a user (home), and III. Is a telephone line, centralized monitoring center I and user II
And are connected via telephone line III. The centralized monitoring center I side is provided with a CPU 11, a modem 12, a printer 13, etc., and the user II side is provided with a gas security panel 20, a telephone 21, a gas sensor 22, etc. indoors.
A gas meter 23, a gas cylinder 24, etc. are provided outdoors, and the CPU 11 of the centralized monitoring center and the user's gas security panel 20 are connected via a telephone line III.
The meter reading value of the gas meter 23 is reported from the security panel 20 to the central monitoring center, and when the gas sensor 22 detects a gas leak, the security panel 21 reports the gas leakage to the central monitoring center.

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 23 is automatically closed to ensure the safety and
Report a gas leak to the Central Monitoring Center. Upon receiving the gas leak information, the centralized monitoring center dispatches an inspector to the user to confirm the fact of the gas leak, and when the fact of the gas leak is confirmed, a countermeasure is taken.

[0004]

Thus, in the above-mentioned conventional gas security device, generally, data can be sent from the user II side to the centralized monitoring center I side, but the centralized monitoring center I side to the user II side. The information could not be transmitted to the side. In some cases, a bidirectional telephone line is used, but since it is a no-ringing circuit (that is, a system in which the user does not make a telephone call), it is separate from the ordinary telephone line (telephone 21 telephone line). I had to install a telephone line for gas security.

The present invention has been made in view of the above-mentioned circumstances, and the telephone line is a general telephone line, that is, a bidirectional ringing circuit, and the central monitoring center side and the user side are connected by a single telephone line. Data exchange with,
It was made for the purpose of making a call.

[0006]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a centralized monitoring center and a gas security board installed in each home connected via a telephone line. In a gas security device for reporting meter reading data of a gas meter and various security data to the central monitoring center through the telephone line, the telephone line is composed of a bidirectional ringing line, and a date and time designated in advance through the telephone line are set. It is characterized in that the centralized monitoring center can receive an incoming call from the central monitoring center to the gas security panel depending on the number of rings or at any desired time.

[0007]

[Operation] The central monitoring center and the user are connected by the bidirectional ringing telephone line, and the date, time,
Depending on the number of rings or at any desired time, the central monitoring center side can make an incoming call to the user side by the number of rings.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, in the gas security device shown in FIG. 1, a telephone line III is composed of a bidirectional ringing line, and a central monitoring center I side to a user II side.
It is possible to communicate and talk to the other side. Then, when a call is made from the centralized monitoring center I side to the user II side, the ring of the user's telephone rings, and if the user picks up the handset (off-hook), the gas security board 2
The line with 0 will be disconnected, and communication between the centralized monitoring center and the gas security panel will not be possible.

The present invention enables two-way communication between the centralized monitoring center and the user using the ringing telephone line without the above inconvenience. That is, in the present invention, a date, time (for example, at night), and the number of rings that have been designated in advance are set between the central monitoring center and the user, and the designated date,
At time of day, the user should not use the phone. Therefore, since the user's telephone is on-hook at this designated date and time, it is possible to make an incoming call from the centralized monitoring center to the user's gas security panel, and when the incoming call arrives, the ring of the telephone rings. However, if this ring is defined as, for example, once, the phone will only be “lin” once, so the user will not go off-hook, and during this time, the central monitoring center Communication is performed with the gas security panel.
In reality, the communication between the central monitoring center and the gas security panel occurs instantaneously, so the gas security panel arrives at the same time as the ring, so the ring does not ring and the central monitoring center and the user communicate with each other. Communication can be performed between them. In the above, the example of transmitting from the centralized monitoring center to the gas security panel at the predetermined time has been described, but it is not always necessary to set the date, time, etc. in advance. It is also possible to have the centralized monitoring center call the gas security panel at any desired time, that is, at any time.

[0010]

As is apparent from the above description, according to the present invention, it is possible to perform communication between the centralized monitoring center and the user by using a general ringing telephone line. The range of use is significantly expanded compared to the case of unilateral communication from the user side to the central monitoring center, and the telephone line of the gas security board is generally used compared to the case of using the conventional non-ringing telephone line. Since the telephone line can be shared with the telephone line of the telephone, the telephone charge can be significantly reduced.

[Brief description of drawings]

FIG. 1 is a configuration diagram for explaining an example of a gas security device to which the present invention is applied and a conventional gas security device.

[Explanation of symbols]

I ... Centralized monitoring center, II ... User, III ... Telephone line,
11 ... CPU, 12 ... Modem, 13 ... Printer, 20 ...
Gas security panel, 21 ... Telephone, 22 ... Gas sensor, 23 ... Gas meter, 24 ... Gas cylinder.

Claims (2)

[Claims] 1. A centralized monitoring center and a gas security panel installed in each home are connected via a telephone line, and meter reading data of a gas meter and various security data are collected from the gas security panel through the telephone line. In a gas security device for reporting to a monitoring center, the telephone line is composed of a bidirectional ringing line, and the central security center receives an incoming call to the gas security panel at a predetermined date, time, and number of rings through the telephone line. A gas security device that is made possible. 2. A centralized monitoring center and a gas security panel installed at each home are connected via a telephone line, and meter reading data of a gas meter and various security data are centralized through the telephone line from the gas security panel. In the gas security device for reporting to a monitoring center, the telephone line is composed of a bidirectional ringing line, and the centralized monitoring center can make an incoming call to the gas security panel at any desired time depending on the number of rings. And gas security equipment.