JPS62298897A - Information communicator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] 3. Detailed Description of the Invention [Industrial Field] The present invention relates to an information communication device in which a control center drives a gas safety valve installed in a subscriber's home.

[Conventional technology] Disaster prevention information such as gas leaks, fires, earthquakes, etc. that occur in subscriber homes is reported to a management center via communication lines such as public telephone lines or private lines, or transmission channels such as radio using satellites. At the same time, information communication devices that communicate disaster prevention information received by a management center to predetermined organizations such as gas companies and fire departments are beginning to be put into practical use.

[Problem to be Solved by the Invention 1] However, in the conventional information reporting device, for example, when a gas leak occurs at a subscriber's house, the control center cannot confirm that there is a gas leak at the subscriber's house. Since no action can be taken until a person or someone from a designated organization such as a gas company operates the gas safety valve at the subscriber's home to the safe side, there is a risk of a major accident such as a gas explosion or fire.

The present invention provides an information communication device that is capable of automatically driving a gas safety valve at a subscriber's house to the safe side immediately when a management center confirms a gas leak at the subscriber's house.

[Means for Solving the Problems] The information communication device of the present invention includes a gas leak sensor that is installed in a subscriber's house and detects a gas leak in the subscriber's house, and a gas leak sensor that detects gas leakage in the subscriber's house. a terminal device including an electronic control circuit that inputs a gas leak signal from the gas leak sensor, and a management center to which the gas leak signal is transmitted from the terminal device via a transmission path, The management center is configured to send a safety valve drive signal to the electronic ill 611 circuit to drive the gas safety valve to the safe side when it receives a gas leak signal.

[Operations and Effects of the Invention 1] The information communication device of the present invention has a safety valve drive function that causes the control center to drive the gas safety valve to the safe side in the electronic control circuit of the subscriber's house when the control center confirms a gas leak at the subscriber's house. Since the signal can be transmitted, it is possible to immediately operate the gas safety valve in the subscriber's home to the safe side, thereby preventing major accidents such as gas explosions and fires.

[Example 1 FIG. 1 shows an embodiment of an information communication device of the present invention.

1 shows an information communication device according to the present invention. 2 indicates a terminal device installed in a subscriber's house (hereinafter referred to as a house); 3. ■
is a handset (not shown), numeric code from 0 to 9, X1#
, A, B, C, D, etc., and has push buttons (not shown) (hereinafter referred to as this telephone).
Shows 1゜1. indicates a public telephone line, including exchange systems (telephone offices, exchanges).

3 indicates the management center. The management center 3 is notified of various information about the house that is sent periodically or irregularly from the terminal device 2 via the public line, and in response to the information, a predetermined I! When reporting to the government, dispatching personnel, or receiving information about a gas leak in a residence, the safety valve drive (in this example, the PB (in this example, the safety valve) drives the gas safety valve described later
The terminal device 2 transmits a signal (using the # symbol, which is the @ symbol) to the terminal device 2.

The terminal device 2 includes a gas meter reading meter (hereinafter referred to as gas meter and abbreviated as Tl') GM which is an automatic gas meter reading device, a gas leak sensor S1, a meter reading unit U including an electronic control circuit, and a gas connection valve which is a gas safety valve. It consists of B1 and B2.

Gas meter GM is an automatic meter reader that detects the flow rate of supplied gas to gas equipment.It uses a magnetic sensor element to detect the rotation of a magnet attached to a rotating body that rotates proportionally to the gas flow rate, and generates a pulse signal proportional to the flow rate. Send out. In addition to automatic meter reading for gas, automatic meter reading for water, electricity, etc. may also be performed.

The gas leak sensor +1181 is a safety device for gas equipment, and when it is inoperable it outputs 6V when Ov1 is normal and outputs 12V when there is a gas leak. The gas leak sensor S1 detects gas leakage in the house when the gas leakage in the house is equal to or higher than a predetermined value.

The gas cutoff valves B1 and B2 are attached in series to a gas supply pipe that supplies gas into the house.

The gas cutoff valve B1 is driven to the safe side (closed) when the gas leak signal from the gas leak sensor S1 is input to the terminal device 2.
Furthermore, when the gas cutoff valve drive signal, which is the safety valve drive signal from the management center 3, is input to the terminal device 2,
The valve is driven to the safe side (valve closed) again.

The gas cutoff valve B2 is driven to the safe side (closed) when the gas cutoff valve drive signal from the management center 3 enters the terminal device @2.

Meter reading] The unit U connects the input interface 21 of the gas meter reading meter GM and gas leak sensor S1, the central processing unit (CPU) 22, the network control unit @ (NCU) 23, this telephone [and via the public line] A communication connector 24 that connects the terminals that connect the management center 3, an output interface 25, and a nickel-cadmium battery (3,
6V). Den+! 126 is charged by receiving power from the telephone office.

The input interface 21 is a pulse input boat 21a1 gas leak sensor S which is an input port of the gas meter GM.
It consists of a non-voltage input port 21b, which is the input port of No. 1, and an input port 21c of the spare port P.

The CPU 22 inputs the set value of the gas leakage flow rate, the automatic meter reading timer time for gas meter reading information to the management center 3, the set voltage value of the power supply, the user's telephone number or -do number, the telephone number of the management center 3, or] - Storage circuit 4 for initial data such as code number, etc., storage control circuit 5 for control procedures of the entire system
, an automatic gas meter reading circuit 6, a gas cutoff valve drive circuit 7, a gas leak detection circuit 8, and a backup power source 9 that is a lithium battery (3V).

As shown in FIG. 2, the NCU 23 includes a line usage detection circuit 23a for detecting the call mode, a 161-(z detection circuit 23b for detecting @calling), and a tone detection circuit 23C1 for identifying the received code. Contact point 23 of the DC circuit 23f, which is opened and closed by the dial transmission circuit 23d, which manually transmits the outgoing signal of this telephone, and the line disconnection relay 23e.
g. This phone is equipped with a contact point 23h for connection.

The tone detection circuit 23c includes an automatic level control circuit (ALC) 23i, which is a correction circuit according to the present invention, a received code detection circuit 23j, and a four-voltage circuit 23.

ALC23i is a circuit that corrects the reception frequency or voltage value received by the reception code detection circuit 23j so that it becomes the ktr$ value, thereby ensuring communication between the terminal bag 2 and the management center 3. .

Since the 4-voltage circuit 23 does not operate unless the received code detection circuit 23j supplies a voltage of 8V or more, this circuit boosts the voltage of the received code detection circuit 23j to 8V.

More 23j! is a diode bridge circuit, 23- is a diode, 23n is a resistor, 23p is an impedance -7
= Transformer 123q represents a voltage drop type transistor.

The output interface 25 has external terminals 25a, 25b used for the gas cutoff valves B1, B2.

The operation of this embodiment will be explained based on the drawings.

FIG. 3 shows an operational flowchart for detecting gas leakage in this embodiment.

It is determined whether or not a gas leak signal is generated manually from the gas leak sensor S1 (101). When the gas leak signal is not input (NO), (101) is repeated and the gas leak in the house is monitored again by the gas leak sensor-'JS1.

When the gas leak signal is being input (Yes), it is determined whether the delay time (30 seconds) of the gas leak sensor S1 has elapsed (102). If the delay time (30 seconds) has not elapsed (NO), repeat (102).

When the delay time (30 seconds) has elapsed (Yes), it is determined whether a gas leak signal is input from the gas leak sensor S1 again, and it is determined whether the gas leak sensor S1 is malfunctioning ( 103). The gas leak signal is not manually controlled (
If No), it is determined that the gas leak sensor S1 is malfunctioning, and the steps below (101) are repeated to monitor the gas leak in the house again using the gas leak sensor S1.

When a gas leak signal is input (yes), an encoding process is performed to convert the gas leak signal into a transmission code (104);
Next, data processing is performed to determine the transmission order of the data with the transmission code from the gas automatic meter reading device W16 (105
), and transmission control to transmit transmission data such as gas leakage, gas meter readings, etc. to the management center 3 via the public line of this telephone T by N CtJ 23 [Communication control subroutine (Fig. 4) 1 is executed] (106).

Then, the gas cutoff valve is driven (in this embodiment, the gas cutoff valve is
Reception control for receiving the B-fold signal (using a certain # code) [French control subroutine (Figure 4) 1 is performed (106
).

Next, encoding processing is performed to convert the # sign into a drive signal for the gas cutoff valve B1 (108), and the gas cutoff well drive circuit 7 transmits an output to close the gas cutoff valves B1 and B2.

As described above, in this embodiment, when the management center 3 receives a gas leak in the residence, the gas cutoff valve B1 is sent from the management center 3 to the gas cutoff valve drive circuit 7 of the meter reading unit U in the residence.
, B2 can be sent the gas cutoff valve drive (#) code to close the gas cutoff valves B1 and B2, so the residential gas cutoff valves B1 and B2 can be immediately closed.
It becomes possible to close valve 2. As a result, in this embodiment, when a gas leak occurs in a residence, even if the management center receives the gas leak in the residence, the personnel at the management center or a predetermined person at the gas company etc. This prevents major accidents such as gas explosions and fires that could occur if residents accidentally ignite gas appliances, etc. without noticing a gas leak before operating the shutoff valve to shut off the gas supply to the house. It can be prevented.

As another example, in (103), when the gas leak signal is input (Yes), it is determined whether the delay time (10 seconds) of the gas leak sensor S1 has elapsed (110
). When the delay time (10 seconds) has not elapsed (NO),
Repeat (110).

When the delay time (10 seconds) has elapsed (Yes), it is determined again whether a gas leak signal is input from the gas leak sensor S1, and it is determined whether the gas leak sensor S1 is malfunctioning. (111). No gas leak signal is input (
If NO), it is determined that the gas leak sensor S1 has malfunctioned, and the steps below (101) are repeated, and the gas leak in the house is again monitored by the gas leak sensor S1.

When the gas leak signal is input (Yes), the gas cutoff valve drive circuit 7 generates an output to close the gas cutoff valve B1. Thereafter, the process proceeds to (104).

In this embodiment, when a gas leak occurs in the residence, the terminal device 2 can close the gas cutoff valve B1 before reporting the gas leak to the management center 3, so the gas cutoff from the management center 3 is possible. The valve drive signal becomes a valve closing confirmation signal to confirm whether or not the gas cutoff valve B1 is closed. That is,
In this embodiment, the terminal device 2 and the tube 1! The gas shielding well B1 is driven by signals from both the l'jt center 3 and the
This becomes a double safety device.

Along with the gas cutoff valve B1, the gas cutoff valve B2 may also be driven by signals from both the terminal device 2 and the management center 3.

Furthermore, after the gas cutoff valve B1 notifies the management center 3 of a gas leak, the terminal device 2 may close the valve.

FIG. 4 shows the automatic dial communication control subroutine of this embodiment.

In order to determine whether or not this telephone set (2) is in use, it is determined whether or not the line use detection circuit 23a detects the call mode (201). When the line use detection circuit 23a detects the call mode (Yes), (201) is repeated.

When the line usage detection circuit 23a does not detect the call mode (No), the 161-1z detection circuit 23b detects an incoming call in order to determine whether or not an incoming call is being made from a telephone outside the residence. (202). 1
6H1 detection circuit 23b detects an incoming call (
If (Yes), repeat (201).

When the 1611Z detection circuit 23b does not detect an incoming call (NO), it outputs an output to the line switching relay 23e, closes the contact 23 (l), opens the contact 23h, and switches between the telephone public line and the dialing circuit 23d. Connect the DC circuit 23
Close f (203).

It is determined whether 3 seconds have passed since the DC circuit 23f was closed (204). If 3 seconds have not elapsed since the DC circuit 23f was closed (NO), repeat (204). Three seconds have passed since the DC circuit 23f was closed (Yes
), calls the management center 3 and starts automatic dialing (205). In order to determine whether or not a data transmission instruction code has been received from the management center 3, a received code detection circuit 2
3j detects a data transmission instruction code (206).

When the reception code detection circuit 23j detects the data transmission instruction code (Yes), it transmits transmission data such as gas leakage and gas meter reading values based on the transmission code to the management center 3 (2).
07).

In (206), when the reception code detection circuit 23J does not detect the data transmission instruction code (NO), it is determined whether the number of outgoing calls has reached 3 after automatic dialing (
208).

When the number of calls has not reached 3 (No), it is output to the line switching relay 23e, and the contact 23 (l is penalized, and the contact 23
h is closed, the public telephone line and the telephone T are connected, and the DC circuit 23f is opened (209). Thereafter, it is determined whether 5 seconds have elapsed (210). If 5 seconds have not elapsed (NO), repeat (210).

When 5 seconds have passed (Yes), (repeat steps 2011 and below).

When the number of outgoing calls reaches three (Yes), it is determined whether 15 seconds have elapsed (211). If 15 seconds have not elapsed (No), proceed to (209). When 15 seconds have elapsed (yes), an output is sent to the line switching relay 23e to open the contact 23Q, close the contact 23h, connect the telephone public line to the telephone T, and open the DC circuit 23f. Release (212).

Here, it is determined whether the second automatic dialing has been performed (213). I haven't dialed the second auto-dial (
If (NO), it is determined whether 5 minutes have elapsed (214).

If 5 minutes have not passed (NO), repeat (214). When 5 minutes have passed (Yes), repeat the steps below (201) again.

When the second automatic dial is (1) (Yes), 3
Determine whether or not automatic dialing has been performed for the second time (215
). When automatic dialing is not performed for the third time (NO),
It is determined whether 5 minutes have elapsed (216).

If 5 minutes have not passed (No), repeat (216).

If 5 minutes have passed (Yes), repeat steps 1 and 1 from (201) again.

Singing the 31st automatic dial (Yes)
At this time, the operation ends.

In (207), after transmitting data such as gas leakage and gas meter readings to the management center 3,
．． In order to determine whether or not the regas cutoff valve drive (#) code is received in the #? It is determined whether or not No. 1 has been detected (217).

The received code detection circuit 23j does not detect the # code (N
O), it is determined whether 15 seconds have elapsed (218).

If 3 seconds have not elapsed (NO), repeat (217). If 3 seconds have elapsed (Yes), proceed to (208).

The received code detection circuit 23j detects the # code (v
es), an output is generated to drive the gas connection valve 81 and B2 (219), and then output to the line switching relay 238 to open the contact 23g and close the contact 23h to switch the telephone public line I! [Connect the main telephone m-r and connect the DC circuit 23f.
(220). After that, the operation ends.

In this embodiment, the gas safety valve includes a plurality of gas cutoff valves B1 and B.
2 was used, but gas cutoff valve B1 or gas cutoff valve B2
It is sufficient if one of the following is provided.

In this embodiment, the # symbol was used as the gas cutoff valve drive code, but numerical codes from 0 to 9, *, A, B, C1D, etc.
B code may also be used.

In this example, a public telephone line was used for the transmission route, but
A communication line such as a dedicated line or a wireless communication line such as a communication line 9 may be used as the transmission path.

161 In this example, a nickel-cadmium dry battery charged by local power supply was used as the power source, but a household AC power source (100
V50/601-IZ) may be used, or other power sources may be used.

Furthermore, a display device such as a lamp or a buzzer may be attached to the horizontal writing unit to indicate the status of the output, such as when the poetry sensor 9 using a general subscriber telephone is outputting.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram of an embodiment of the information communication device of the present invention, Fig. 2 is a schematic diagram of an information text of the present invention (70 diagrams of a meter reading unit according to an embodiment of the device), and Fig. 3 is a schematic diagram of an embodiment of the information communication device of the present invention. Fig. 4 is a flowchart of gas leak detection according to an embodiment of the information communication device, and shows a communication control subroutine for automatic dialing in an embodiment of the information communication device of the present invention. 2...Terminal device 3.
・・Management session 22 ・・Central processing unit <CPU”
) 23...Network control unit (NCU) Bl, B
2...Gas cutoff valve GM...Gas meter reading meter
...Public line S1...Gas leak sensor T...General subscriber telephone (J...meter reading unit

Claims (1)

[Scope of Claims] 1) A gas leak sensor that is installed in a subscriber's house and detects a gas leak in the subscriber's house, a gas safety valve that controls the flow rate of gas supplied to the subscriber's house, and the gas leak. Consisting of a terminal device including an electronic control circuit that inputs a gas leak signal from a sensor, and a management center to which the gas leak signal is transmitted from the terminal device via a transmission path, the management center receives the gas leak signal. an information communication device that transmits a safety valve drive signal to the electronic control circuit to drive the gas safety valve to the safe side when 2) the gas safety valve is driven to the safe side when a gas leak signal from the gas leak sensor is input to the terminal device;
The information communication device according to claim 1, wherein the information communication device is driven to the safe side again when a safety valve drive signal from the management center is input to the terminal device. 3) The information communication device according to claim 1 or 2, wherein the gas safety valve is a gas cutoff valve that cuts off gas supply to the subscriber's home.